Steam-Pressure and Water-Level Recorder for Boilers. Page: 3 of 5
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UNITED STATES PATENT OFFICE.
WILLIAM MORGAN LEWIS, OF THURBER, TEXAS.
STEAM-PRESSURE AND WATER-LEVEL RECORDER FOR BOILERS.
SPECIFICATION forming part of Letters Patent No. 495,815, dated April 18,1893.
Original application filed September 3, 1891, Serial No, 404,658. Divided and this application filed May 3, 1892. Serial No.
431,627 (No model.)
To all wz07on it may concern: piston rod F, extending through a suitable
Be it known that I, WILLIAM MORGAN stuffing box in the top of the cylinder D. The
LEWIS, of Thurber,inthecountyof Erath and upper end of the piston rod extends into a
State of Texas, have invented a new and Im- casing G, supported on a suitable platform A',
5 proved Steam-Pressure Recorder for Boil- held on a framework arranged on top of the 55
ers, of which the following is a full, clear, and vessel A. The extreme upper end of the pis-
exact description. ton rod F is formed with an enlargement F',
This application forms a division of the connected with one end of a spring H, coiled
original application for Letters Patent, Serial in the lower part of the casing G, said spring
io No.404,658, filed byme September 3,1891, and being attached to the bottom of the casing. 60
the device for recording the water level of From the front part of the enlargement F'
the boiler hereinafter referred to, forms the of the piston rod F extends a pointer F2, in-
subject matter of the said original application. dicating steam pressure on the graduation G',
The object of the invention is to provide a fixed on the casing G. From the rear part of
15 new and improved steam pressure recorder the enlargement F' extends transversely, a 65
for boilers, which is simple and durable in spring pressed pencil I, see Fig. 2, passing
construction, very effective in operation, and through a vertical slot J', formed in a trans-
arranged to automatically record the pressure parent cover J, of a clock-work K, of any ap-
of the steam in the boiler for a given period. proved construction. The hour shaft K', of
2c The invention consistsof certain partsand the clock-work K carries a dial L, arranged 70
details, and combinations of the same, as will to make one full rotation either during twelve
be hereinafter described and then pointed or twenty-four hours, the said dial being cor-
out in the claims. respondingly divided into twelve or twenty-
Referenceis to be had to the accompanying four equal sector parts L', and with a double
25 drawings forming a part of this specification, graduation L' and L3, distinguished from one 75
in which the same letters of reference indi- another by Roman and Arabic numerals and
cate the same or corresponding parts in all the both indicating hours of the sector parts L', as
figures. hereinafter more fully described. When the
Figure 1 is a sectional side elevation of the clock-work K is wound up, the dial L revolves
30 improvement. Fig. 2 is a sectional plan view in the direction of the arrow c' (on Fig. 1). 80
of the same on the line 2-2 of Fig. 1 the A pointer K2, fixed on the casing of the clock-
springs being removed to show the pencils; work K indicates the correct hour of the day
and Fig. 3 is a sectional side elevation of part on the graduation L3, of the said dial. Thus,
of the improvement on the line 3-3 of Fig. 2. as shown in Fig. 1, the hour of the day is one
35 My improved steam pressure recorder for o'clock. The pressure of the steam in the 85
boilers is provided with a closed vessel A, con- vessel A exerts its influence on the piston E
nected near its upper end by a pipe B, with so that the latter is moved upward so that the
the steam compartment of the boiler, and at pointer F2 indicates the pressure in pounds
its lower end by a pipe C, with the water com- on the graduation G'. At the same time, the
40 partment of the boiler. The vessel A is so pencil I marks a line on the dial L, which lat- 90
arranged relative to the boiler that the water ter, on account of its revolving according to
levelin the vessel A corresponds with the level time, notes the pressure at the proper time.
of the water in the boiler, the vessel prefer- The dial L is preferably made of slate, so that
ably extending throughout the height of the the markings can be wiped off whenever de-
45 boiler and forming part of the same or placed sired. The spring H insures a return move- 95
a suitable distance therefrom ataconvenient ment of the piston E and connected parts
point. according to the diminishing pressure of the
On the top of the vessel A is arranged a steam in the vessel A. Within the vessel A
cylinder D, extending upwardly and in which is also arranged a float N, adapted to rise and
50 is fitted to slide a piston E, provided with a fall with the level of the water in the vessel roo
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Lewis, William Morgan. Steam-Pressure and Water-Level Recorder for Boilers., patent, April 18, 1893; [Washington D.C.]. (https://texashistory.unt.edu/ark:/67531/metapth173389/m1/3/: accessed June 22, 2024), University of North Texas Libraries, The Portal to Texas History, https://texashistory.unt.edu.; crediting UNT Libraries Government Documents Department.