USA > Massachusetts > Plymouth County > Plymouth > Town annual report of the officers of the town of Plymouth, Massachusetts for the year ending 1915 > Part 11
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Reinhardt, Henry, 9 Allerton Street, steam fitter.
Rickard, Warren P., 223 Sandwich Street, shoe dealer. Riedel, Henry, 308 Court Street, shoe dealer. Robbins, Frank H., Main Street, painter. Roberts, Harold G., Holmes Terrace, clerk. Royal, Henry W., 225 Court Street, bookkeeper. Rubinstein, Louis, 38 Russell Street, clothier. Sampson, Evered A., 77 Park Avenue, machinist. Sampson, Fred A., 71 Summer Street, grocer.
Schubert, John C., 17 Robinson Street, harness maker. Sears, Harold P., 207 Sandwich Street, clerk. Shaw, Clifton P., 45 Samoset Street, brakeman. Sidebotham, James, 35 Oak Street, dresser. Silva, Cosmo, 61 Cherry Street, real estate. Smith, Leslie B., 157 Sandwich Street, chauffeur. Sproul, William F., 93 Sandwich Street, agent. Stephen, Nicholas, 18 Hamilton Street, foreman.
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Stevens, Charles T., 8 Stoddard Street, florist. St. George, Frank L., 30 Pleasant Street, livery stable keeper. Sturtevant, Perry L., 14 Jefferson Street, weaver. Swanton, James S., 54 Allerton Street, carpenter. Sweeney, George B., 65 Oak Street, carpenter. Swift, Robert C., Clifford Road, carpenter. Tavernelli, Sebastian, 117 Sandwich Street, barber. Thom, George S., 405 Court Street, cordage employee. Thomas B. Loring, 221 Sandwich Street, carpenter. Tripp, Lyman F., 11 Whiting Street, blacksmith. Turner, Edgar S., 16 Nelson Street, spinner. Valler, Harry E., 236 Sandwich Street, yard clerk. Webber, Charles, Jr., 281/2 Centennial Street, percher. Whiting, Henry O., 9 Pleasant Street, provisions. Whiting, Russell L., 29 High Street, hack driver. Williams, George H., 2nd., 30 South Street, electrician. Zahn, Charles, 10 Atlantic Street, shoe dealer.
Approved January 31, 1916.
WILLIAM T. ELDRIDGE, EPHRAIM D. BARTLETT, RICHMOND TALBOT, HERBERT S. MAXWELL, JOHN L. MORTON,
Selectmen of Plymouth.
SIXTY-FIRST ANNUAL REPORT
OF THE
Water Commissioners,
Superintendent
AND
Collector of Water Rates
OF THE
Town of Plymouth
1915
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WATER COMMISSIONERS
JOHN W. CHURCHILL-Term expires March, 1918. ROBERT C. HARLOW-Term expires March, 1918. JOHN H. DAMON-Term expires March, 1916. HORACE P. BAILEY-Term expires March, 1917. CHARLES T. HOLMES-Term expires March, 1917.
Superintendent-Arthur E. Blackmer.
Assistant Superintendent-Richard W. Bagnell.
Water Register-N. Reeves Jackson.
Engineer at Pumping Station-John Bodell.
Assistant Engineer at Pumping Station-Albert E. Caswell.
All applications for water must be made at the office of the Water Commissioners.
Superintendent's office, Town Square, near Town House; tele- phone, office 532-R, shop 532-W.
Meeting of the Commissioners to examine bills and claims against the department, the first Wednesday evening of each month.
Rates payable at the Town Treasurer's office semi-annually in advance, May 1 and Nov. 1.
Bills against the Department must be rendered on or before the first Wednesday of each month, or they will lie over until the following month.
Approved bills paid by the Town Treasurer at the Town Office.
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REPORT OF WATER COMMISSIONERS
The Water Commissioners herewith submit their sixty-first annual report.
RECEIPTS.
Appropriation,
$16,000 00
Appropriated for 1914 bills,
262 11
Credits,
172 70
Total,
$16,434 81
EXPENDITURES.
Maintenance,
$8,218 43
Pump,
3,700 43
Extension of mains,
1,882 04
Extension of services,
462 26
Meters and setting,
2,171 10
Unexpended balance,
55
Total,
$16,434 81
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MAINTENANCE.
Salaries,
$3,211 96
Labor,
2,279 79
Horse feed, care and stable items,
362 28
Freight, express and trucking,
33 76
Stationery, stamps and printing,
237 63
Fuel, light and power,
101 97
Telephone,
83 58
Factory and office repairs and supplies,
363 07
Tools bought and repaired,
32 25
Leaks in main pipes,
322 11
Leaks repaired in service pipes,
167 04
Renewing services,
147 47
Venturi Meter,
282 95
Miscellaneous,
592 57
$8,218 43
PUMPING STATION.
Salaries,
$2,058 33
Fuel and light,
1,152 02
Heating and lighting engineer's house,
241 67
Parts and repairs to machinery,
10 96
Freight and trucking,
3 53
Material and supplies,
128 31
Tools and repairs on tools,
1 60
Repairs to buildings and grounds,
104 01
$3,700 43
-
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BONDS.
Bond paid on issue, August 1, 1890,
$1,300 00
Bond paid on issue, August 1, 1894, 800 00
Bond paid on issue, October 2, 1899,
1,500 00
Bond paid on issue, May 1, 1901,
1,000 00
Bond paid on issue, July 1, 1903,
666 66
Bond paid on issue, April 15, 1905,
5.00 00
Bond paid on issue, April 15, 1905,
500 00
Bond paid on issue, Nov. 15, 1905,
600 00
Bond paid on issue, July 1, 1907,
1,000 00
Bond paid on issue, Feb. 15, 1908,
1,000 00
Bond paid on issue, June 1, 1909,
1,000 00
Bond paid on issue, July 1, 1910,
2,000 00
Total bonds paid,
$11,866 66
INTEREST.
Interest paid on issue, August 1, 1890,
$156 00
Interest paid on issue, August 1, 1894,
160 00
Interest paid on issue, October 2, 1899,
300 00
Interest paid on issue, May 1, 1901,
227 50
Interest paid on issue, July 1, 1903,
462 50
Interest paid on issue, April 15, 1905,
8 75
Interest paid on issue, April 15, 1905,
8 75
Interest paid on issue, November 15, 1905,
231 00
Interest paid on issue, July 1, 1907,
700 00
Interest paid on issue, February 15, 1908,
700 00
Interest paid on issue, June 1, 1909,
227 50
Interest paid on issue, July 1, 1910,
120 00
Total interest paid,
$3,301 98
Bonds, r
$11,866 66
Interest,
3,301 98
Total Bonds and Interest,
$15,168 .64
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COMMISSIONERS' REPORT
The work of the Water Department for the past year has been mainly routine maintenance work, with a small amount of con- struction work.
There has been laid 2,211 feet of new pipe, principally 6" at a cost of $1,882.04, as the Superintendent's report shows in detail.
The grounds around the Allerton Street reservoir have been further improved, over the work done last year, by setting out shrubs along the Allerton Street slope.
A venturi meter tube as been set in the 16" line at the pump- ing station, for the purpose of checking the "slip" or over-regis- tration of the pumps. The cost of this work was $282.95.
Mr. John A. Skakle, chief engineer at the Plymouth Cordage Company, made a careful inspection of the Barr pump in May. He reported the pump to be in excellent condition and stated that no repairs were necessary. This pump has been in prac- tically constant operation for more than eleven years, and the Commissioners were gratified to receive such a satisfactory re- port. They wish to take this opportunity of expressing their appreciation of the gratuitous work done by Mr. Skakle in mak- ing this inspection and report.
We recommend that 6" pipe be laid in the following streets, Franklin, Washington, High, Davis, Vernon Street west from Allerton and Highland Place, at an estimated cost of $5,000.00. Some of the pipe in these streets has been in service sixty years. A portion of it is 2" in size and none is larger than 4".
We recommend an appropriation of $16,000.00 for regular maintenance ; making a total appropriation of $21,000.00.
Respectfully submitted,
JOHN W. CHURCHILL, HORACE P. BAILEY, CHARLES T. HOLMES, JOHN H. DAMON, ROBERT C. HARLOW.
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SUMMARY OF STATISTICS.
Published by Request of the New England Water Works Association.
PLYMOUTH (MASS.) WATER WORKS
-
Population by census of 1915, 12,926.
Date of construction, 1855.
By whom owned. Town.
Source of supply, Great and Little South and Lout Ponds.
Mode of supply. Gravity for low service and pumping for high service.
PUMPING
1. Builders of pumping machinery : Barr and Worthington.
2. Coal: (b) bituminous; (d) brand various; (e) average cost per gross ton, $5.23. .
3. Total fuel, 490,295 pounds.
5. Total water pumped, 291,115,900 gallons.
6. Average static head, 65 feet.
7. Average dynamic head, 72 feet.
8. Number gallons pumped per pound of coal, Worthing- ton, 426.9, Barr, 595.4.
9. Duty of Bar Pump, 35,726,000; Worthington, 25,610,000. Cost of pumping figured on pumping station expenses, Viz., $3,700.43.
10. Per million gallons against dynamic head into direct pipe, $12.71.
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11. Per million gallons raised one foot high, (dynamic) $.176. Cost of pumping figured on total maintenance, Viz., $11,918.86.
12. Per million gallons against dynamic head into direct pipe, $40.94.
13. Per million gallons raised one foot high (dynamic) $.529.
SERVICES.
16. Kind of pipes; lead and cement lined.
17. From one-half to four inches.
18. Extended 499 feet.
20. Total now in use, seven miles, 3,156 feet.
21. Service taps added, 34.
22 Number now in use, 2,657.
23. Average length of service, 14.1 feet.
24. Average cost of service, $13.59.
27. Motors and elevators added : None.
28. Number now in use; one Motor.
DISTRIBUTION
1. Kind of pipe used : Cement lined and wrought iron, principally cement lined.
2. Sizes: from 2 inch to 30 inch.
3. Extended, 2,211 feet.
4. Discontinued, 400 feet of 4 inch.
5. Total now in use, 55 miles, 2,829 feet.
6. Cost to repair per mile $5.80.
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7. Number of leaks per mile, 4.
8. Small distribution pipes, less than 4 inch, 10 miles, 3,259 feet.
9. Hydrants added, three post. Discontinued, none.
10. Hydrants now in use: 225 public; 52 private.
11. Stop gates added, nine. Discontinued, two.
12. Number now in use, 630.
13. Small stop gates less than 4 inch, 133.
14. Number of blow-offs, 42.
1
Published by request of the New England Water Works Association. FINANCIAL
MAINTENANCE.
Water rates, domestic, Water rates, manufacturing,
$35,404.70 2,973.92
Management and repairs, Interest on bonds,
$11,918.86 3,301.98
Total water receipts, Miscellaneous,
$38,378.62
Total, . Profit for year,
$15,220.84
573.43
23,731.21
Total,
$38.952.05
Total,
$38,952.05
Paid bonds and notes, Carried to Construction Acct., Total,
$11,866.66 11,864.55
$23,731.21
CONSTRUCTION.
$11,864.55
Extension of mains,
$1,882.04
Extension of services,
462.26
Meters and setting, Unexpended balance,
2,171.10
7,349.15
Total,
$11,864.55
$11,866.66 paid yearly on principal. Bonded debt at 31/2 per cent ..
$18.000.00
..
.. 334
11,999.88
4
47,800.00
$77,799.88
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Profits of maintenance,
1
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COLLECTOR'S REPORT
Gentlemen :- I hereby submit the annual report of the Col- lector of Water Rates for the year 1915.
Dr.
Arrears,
$7,973 77
Water Rates, Labor and Material,
39,069 74
568 24
$47,611 75
Cr.
Total Collections,
$38,952 05
Abatements,
1,496 21
Uncollected Rates,
7,106 04
Uncollected Labor and Material,
57 45
$47,611 75
Water is supplied to 2,845 families ; 2,251 water closets; 1,052 bath tubs; 572 hose; 12 markets; 35 urinals; 187 cows; 82 stables; 374 horses; 204 stores, offices and shops; 4 banks; 9 churches ; 9 engines; 4 cemeteries; 3 laundries; 8 manufacto- ries ; 2 photograph saloons ; 10 saloons ; 4 bakeries ; 10 hotels and boarding houses; 3 hot houses; 2 printing offices; 10 halls; 2 billiard rooms; 2 cigar manufactories; Gas Works; 3 woolen mills; N. Y., N. H., & H. R. R .; 2 electric plants ; County buildings; Town Buildings; street sprinkling.
Yours respectfully,
N. REEVES JACKSON,
Collector of Water Rates.
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SUPERINTENDENT'S REPORT
To the Board of Water Commissioners :-
Gentlemen: I herewith submit the annual report of the Superintendent of the Plymouth Water Works for the year ending December 31, 1915.
ACCOUNT OF PIPES LAID FOR YEAR ENDING DECEMBER 31, 1915.
LOCATION
Length in feet.
Size in inches
Cost
Russell's Milis
100
2
$36.92
Sandwich Road, Thomas Reilly house
850
6
633,24
Vernon St., including services
735
6
754.00
Water St. Ext., Kerr's Factory
129
6
152.28
Standish Ave., to dump
250
6
234.55
Highland Place
147
2
71.05
TOTALS,
2,211
$1,882.04
CONSUMPTION FOR 1915.
The usual diagram showing graphically the daily average consumption for each week in the year is given on Plate 2. .
The dotted line represents the low service consumption, the next full line above, the high service and the upper full line is the sum of these two or the total consumption.
Table showing total rainfall since 1887, and monthly rainfall since 1891. Also annual variation from the average in inches.
Variation
YEAR
JAN.
FEB.
MAR.
APRIL
MAY
JUNE
JULY
AUG.
SEPT.
QcT.
Nov.
DEC.
TOTAL
from av.
in inches
1887
43.14
- 2.94
1888
50.28
4.20
1889
49.14
3.06
1890
51.80
5.72
1891
8.36
5.32
5.04
4.02
1.99
2.23
2.55
1.43
2.23
5.92
1.79
3.77
44.65
1.43
1892
3.79
2.72
4.56
1.26
3.91
2.12
1.81
4.16
2.41
2.29
7.12
1.75
37.90
-
8.18
1893
2.88
6.66
6.17
4.45
4 39
2.50
2.71
5.80
1.73
2.16
3.29
5.59
48.33
2.25
1894
3.50
4.85
1.56
3.97
4.35
1.54
1.08
0.73
2.37
7.97
4.98
5.78
42.68
3.40
1895
3.54
0.87
2.71
4.79
2.73
2.04
3.58
2.05
3.27
6.89
3.95
3.85
40.27
5.81
1896
2.75
4.73
5.82
0.88
2.93
3.59
2.27
1.71
5.65
3.60
3.41
1.75
39.09
6.99
1897
4.24
2.08
2.31
4.28
3.65
2.99
2.88
2.91
1.42
0.87
6.42
3.27
37.32
8.76
1898
3.75
4.04
2.27
5.82
5.65
1.93
6.58
7.33
1.35
8.96
8.48
2.24
58.40
12.32
1899
6.52
5.23
6.77
1.18
1.40
3 62
3.79
1.17
6.92
3.03
2.28
1.60
43.51
2.57
1900
4.86
5.35
3.62
1.95
5.11
2.29
1.37
3.28
3.10
5.40
5.36
3.15
44.84
1.24
1901
2.51
1.70
6.86
7.78
8.54
1.46
4.38
2.25
2.77
2.07
2.59
10.20
53.11
7.03
1902
2.22
5.53
7.82
2.98
1.52
3 68
1.89
1.43
3.65
5.32
1.72
6 77
44.53
1.55
1903
4.43
5.36
7.94
7.45
0.67
4.76
2.44
5.44
1.45
6.32
3.22
3.98
53 46
7.38
1904
5.44
3.61
2.47
9.11
2.23
2.58
4.02
3.52
3.18
1.85
3.53
4.10
45.64
5.44
1906
4.05
5 33
8.69
2.34
5 28
2.36
6.42
2.02
2.98
4.50
3.45
3.13
50.55
4.47
1907
3.92
3.41
2.31
4.08
3.68
2.70
1.10
1.82
11 16
2.91
6.82
6.90
50.81
4.73
1908
3.78
4.37
3.95
2.48
2.98
2.30
3.87
4.41
1.61
10.19
1.53
4.28
45.75
.33
1909
5.44
6.18
3 74
6.41
3.51
3.03
1.83
2.44
4 95
2.23
8.15
3.34
51.25
5.17
1910
5.98
5.82
1.05
2.51
2.27
3.82
2.71
2.32
1.81
1.94
5.69
2.96
38.88
7.20
1911
3.17
3.45
3 38
3 68
0.77
3.05
6 84
4.66
3.44
3.60
6.59
3 58
46.21
.13
1912
4.88
4.00
7.51
3.87
4 71
0.39
2.32
3 50
1.49
1.26
3.83
6 16
43.92
2.16
1913
4.09
3.50
3.40
6.66
2.30
1.57
1.77
3.03
3.49
11.08
2.79
4.61
18 29
2 21
1914
3.62
4.82
5.42
5 45
2.90
1.00
4.62
3.40
1.67
2.20
3.47
6.73
45.30
.78
1915
10.33
3.98
0.09
3 47
2.20
4.58
2.72
6.19
1 55
4.22
2.37
4.99
46.71
.63
Av.
4.50
4.20
4.33
4.12
3.23
2.80
3.09
3.19
3.30
4.34
4.19
4.34
46.08
-
.44
1905
4.50
2.16
2.87
2.32
1.11
8.01
1.78
2.99
6.93
1.72
2.04
4.21
40.64
-
-
-
-
-- #
1
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The daily average low service consumption for the year was 502,000 gals., the high service, 798,000 gals., and the total 1,300,000 gallons.
The total consumption for the year was 474,338,000, of which the low service was 183,200,000, or 38.6 per cent., and the high service was 291,115,000, or 61.4 per cent. This total con- sumption of 474,338,000 gallons, is a decrease of 31,000,000 gallons, or 6.2 per cent. over the total consumption for 1914, which was 505,000,000 gallons.
The máximum daily average total consumption for one week was 1,663,000 gallons and occurred during the week of Sept. 19, and the minimum daily average total consumption for one week was 1,114,000 gallons, and occurred during the week of March 14.
The maximum daily average consumption for one week in 1914 was 2,205,000 gallons, and in 1915 was 1,663,000 gallons, a reduction of 542,000 gallons, or 29 per cent.
The minimum daily average consumption for one week in 1914 was 1,082,000 gallons, and for 1915 was 1,114,000, an increase of about 3 per cent.
RAINFALL
The rainfall table shown on the following page is a record of rainfall observations extending over a period of 29 years.
The average annual rainfall for this period has been 46.08", and the rainfall for 1915 was 46.71", or 0.63" above the aver- age.
Insert out / Map
Here
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TABLE OF METERS NOW IN USE.
T'I Amt.of wa-
FOR WHAT USED
6 in 4 in 3 in 2 in 11/2 in 1 in 34 in 5/8 in Total
ter used through meters,gals.
Manufacturing
3
1
1
3
2
7
1
18
43,029,870
Domestic
3
2
12
38
209
264
30,520.620
Elctric Lt. and Power Cos.
2
2
14,585,000
N. Y., N. H. & H. R. R.
1
9,188,340 ·
Business Blocks
2
5
6
17
30
5,958,470
Hotels and Restaurants
2
1
1
2
12
18
5,270,860
Laundries
1
1
1
2
2,427,670
State and County Buildings
1
3
2
2
8
2,054,260
Stables and garages
1
2
2
7
12
1,743,000
Miscellaneous
1
3
4
937.610
Greenhouses, Gardens, Golf Grounds, Etc.,
2
1
4
1
6
14
777,870
Construction
2
1
3
157,130
Fish markets
3
3
148,100
Totals
3
4
2
16
8
31
60
258
382
120,533,310
METERS.
The above table shows the number of meters of various sizes in use, and the total quantity of water that passed through these meters in 1915. As a matter of possible interest the subdivision of metered use is made among various classes of consumers.
The total number of services on January 1, 1916, was 2,657, and the total number of meters was 382, therefore 14.4 per cent. of the services are metered. The total consumption for the year was 474,338,000 gallons, of which 120,533,300 gallons, or 25.4 per cent. was metered.
CONSUMPTION IN MILLION GALLONS.
As a matter of record the following table is given, showing our high and low service and total consumption of water, and
1
2
2
3,754,510
Shipping
1
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the consumption of four of our largest metered consumers for the last eight years.
Consumption in Million Gallons.
Year
High Ser- vice
Low Ser- vice
Total
American Woolen Co.
Plymouth Elec. Lt. Co.
-
N. Y., N. H. & H. R. R.
B. & P. St. Ry. Power Station
1908
235
210
445
63
4
18
4
1909
250
212
462
76
4
20
1
1910
269
188
457
48
6
20
1
1911
289
189
478
55
6.6
7
1.5
1912
309
191
500
54.9
7.3
7.6
2.4
1913
301
176
475
52.7
6.8
4
1
1914
327
178
505
64.5
7.2
4.5
1.9
1915
291
183
474
40.4
10.9
8.8
3.7
POND ELEVATIONS-STORAGE DEPLETION AND
ACCUMULATED RUN-OFF.
Pond Elevations.
Plate I shows in graphical form the information that has been gathered during the past ten years with reference to the fluctuations in pond elevations and the consequent change in storage volume of Great and Little South Ponds.
The two lower curves on the sheet show the monthly fluctua- tions of Great and Little South Ponds. The dotted line indi- cating Little South and the next full line above, Great South Pond.
Storage Depletion.
The next curve above is the storage depletion curve and shows monthly fluctuation of storage between full pond and grade 97.0, two feet above our intake pipe. From this curve we see
Insert
Foldout /
Here
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that the maximum depletion of storage in 1915 was in Novem- ber, and at that time we had 510,000,000 gallons in storage.
Accumulated Run-Off.
The curve at the top of the sheet is called an accumulated run-off curve, and is constructed and used as follows : The run-off from the South Ponds water shed is computed monthly as explained in previous reports, by adding algebraically the total monthly consumption to the monthly change in storage volume of the ponds. The aggregate run-off during the period these records have been kept (from June, 1907, to date) plotted monthly, gives the curve as shown.
The dotted straight line indicates a uniform rate of draft of 1,250,000 gallons daily. This line is drawn from the summit of the curve in March, 1908. The following information can then be read from the diagram: If a uniform rate of draft of 1,250,000 gallons daily since March, 1908, had oc- curred, there is no month between that date and January, 1915, when the aggregate run-off from the water-shed would have equaled the draft upon it.
In other words, 1,250,000 gallons daily may be considered as being the safe daily yield of the South Pond water-shed under weather conditions similar to those we have experienced during the past eight years. If a greater rate of draft than this occurred we may expect the additional quantity to be taken from storage in the ponds. Let us now see what has actually occurred.
From our pumping station records we find that the average daily consumption or average daily draft on our water-shed, for the past eight years, amounted to 1,301,000 gallons. Now we have just shown that the probable safe daily yield of the water- shed was 1,250,000 gallons, and it then becomes apparent that every day for the past eight years we have take from our source of water supply about 50,000 gallons more water than the water-shed is capable of yielding. If this conclusion is correct
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we ought to find that this excess (amounting in eight years to about 149,000,000) has been taken from storage.
From the diagram of pond elevations the following informa- tion is obtainable.
On Jan. 1, 1908 the elevation of Great South Pond was 104.60 On Jan. 1, 1908, the elevation of Little South Pond was 101.30 On Jan. 1, 1916, the elevation of Great South Pond was 103.30 On Jan. 1, 1916, the elevation of Little South Pond was 102.90
The decrease in storage amounts to almost exactly 150,000,000, and confirms the previous calculation. In this connection it is interesting to observe that the average annual rainfall for the past eight years has been 45.75", which is only 0.33" below the average annual rainfall for past twenty-nine years of 46.08".
In view of the information presented it seems pretty diffi- cult to escape the conclusion that every year that the average daily consumption exceeds 1,250,000 gallons, the excess is taken from storage, with a consequent lowering of pond level.
The following table shows the average daily water-shed yield and the average daily consumption for each year since 1908.
Year
Av. Daily Use
Av. Daily Yield
1908
1,220,000
1,174,000
1909
1,267,000
1,295,000
1910
1,251,000
1,056,000
1911
1,310,000
1,023,000
1912
1,370,000
1,505,000
1913
1,307,000
1,291,000
1914
1,383,000
1,368,000
1915
1,301,000
1,254,000
Average
1,301,000
1,246,000
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REPORT OF MR. JOHN A. SKAKLE, OF EXAMINATION
OF BARR PUMP.
This report takes the form of a letter to the Superintendent by Mr. Skakle and his conclusion is that "the present condition of the plant does not call for, nor justify any large expenditure of money, as the plant as a whole is in good condition."
It is naturally very gratifying to receive this report upon a pump that has been in practically continuous operation for more than eleven years, since June, 1904, and has pumped over 2,850,000,000 gallons.
A copy of Mr. Skakle's report follows :
May 21, 1915
From the Plymouth Cordage Company.
To
Mr. Arthur E. Blackmer,
Sup't Plymouth Water Works, Plymouth, Mass.
Dear Sir-At the request of Mr. John H. Damon, I visited the pumping station of the town of Plymouth. Mr. Damon asked me to report on the condition of the pumps and the steam con- sumption.
On the first visit, May 11th, I tested the gages by comparison with a standard gage, and found them correct. Measurements were also taken for indicators and reducing motion.
May 18th, the following Tuesday, six sets of cards were taken on each engine, each end of the cylinder being taken on a separate card, in order that the exact shape could be clearly seen. So far as can be seen from the indicator cards, the pumps are in very good condition; in only one place, the com- pression of the low, is there any sign of leakage, but as this is so slight it may be over-looked. The high pressure cards on both engines show that they take steam during the entire stroke, due no doubt to the fact that the throttle is only a very small amount open.
HIGH PRESSURE CYLINDER Area of piston=78.54 sq. in. S= 40
L 4.0625 = 9.84
Piston Speed =90 ft per min.
Constant number-
Head End 1.0537
Water 1.0216
LOW PRESSURE CYLINDER Area of Piston= 254.46 sq. in. S 16
L=4.125 == 3.878
Piston Speed == 90 ft per min.
Area piston rod=2.405 sq. in.
Constant number -- Head end=1.3456
Water
" =1.3201
LEFT HAND ENGINE
RIGHT HAND ENGINE
Water End
Head End
Water End
Head End
3.2997
3.26912
High
3.3508
High
3.29976
Pressure
3.3099
Pressure 3.37128
3.3718
3.26647
3.2764
3.3718
3.3502
3.2032
5.4916
5.33861
Low
5.4784
Low 5.4916
Pressure 5.5444
Pressure 5.4124
5.6380
5.6515
5.4496
5.6515
5.5169
· 5.5196
Total H-P Left Hand Engine 17.6917
Total H-P Right Hand Engine 17.6313
Total H-P=35.3231
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STEAM CONSUMPTION
M = 13750
M.E.P (C. E) Wc-(H E) Wh=37,637 lbs.
M. E. P. = Mean effective pressure.
C. =Proportion of the direct stroke complete at cut off.
E. =Proportion borne by the volume of the clearance to the volume of the piston displacement.
H. =Proportion of return stroke uncompleted at compression.
Wc =Weight of one cubic foot of steam at cut off pressure.
Wh =Weight of one cubic foot of steam at the compression pressure.
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Because of the fact that the cards were taken first on one side and then on the other, the horse-power may be inaccurate to a slight extent, but as the load was approximately the same, the difference, between the horse-power as found, and the true horse-power, will be so small that it is negligible.
The average horse-power found was 35.323. Details are in attached table.
The steam consumption was determined from formulæ by Prof. Whitaker of Massachusetts Technology, and was found to be 37.637 lbs. per horse-power per hour for one engine or 75.274 lbs. per hour for both sides. This is a very fair con- sumption for this type of engine.
In conclusion I would say that the present condition of the pumps does not call for, nor justify any large expenditure of money, as the plant as a whole is in good condition. It seems that if the cushioning valves were used a little more the stroke of the engine might be brought up the inch difference between the present stroke and the stroke for which it was built. This might at the same time relieve the noise a little.
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