US895342A - Boiler feed-valve. - Google Patents

Description

hl r I l y. 1 l v PUBMED' AUG. 4, 195s'. G. W. COLLIN. BOILER FEED VALVE-j 7am/@MM Geog@ WUNL.; y

M fm wvzhwm PATENT OFFICE.

GEORGE w. COLLIN, or MANSFIELD, omo.

` nonnen FEEDALVE.

` VTo all wlzom it Imay concern:

Be it known that I, GEORGE' W. COLLIN, a eitizenlof the United States, and resident or' Mansfield, in the countyv of Richland and State of Ohio, have invent-ed certain new and lseiul improvements in Boiler Feed-Valves,

Y er' which the following is a specication.

I connected with the boi er.

This invention has relation to automatic 'thermostatically-o' erated boiler feed valves, and it consists 1n t e novel construction and arrangement ol: its parts as hereinaf.er shown and escribedf A he object of the invention is to-provide a boer feed valve with a thermostat which is vconnected up with the boiler and .which is operated by variations of temperature due to the element that it contains and which in inra operates the valve for automatically edngwater to the boiler.

The valve consists of a casing which is conslee-ted up with a water su ply and which is An auxiliary valve casing is attached to the aforesaid a ahve casing and is connected with the piston chamber thereof by a lay-pass.

A lever 1s toasted under the lowerend olf the stem of auxiliary valve, which is located in the auxiliary valve` casing, and thermostat is arranged to operate said lever. The thcrleistet consists primarily of a horizontal pine or a pipe nearly in such position which E arrange to slide. longitudinally in a gland and bushing .or hub 'att-ached to-the valve seing.' Said pipe is located in` alincment #sith the normal water line in boiler. The

- eid of the said pipe located within the bushing s closed by a plug, the end of which is in igagement with one end of the lever which ilrrvurn is fulcruined between extensions of the said bushing. j l

in the accompanyimr drawings,-Figure l, a top plan view'oia the valve, and conup with a water column which would loe piped to a boiler as in practice. Fig. 2, is a vertical sectional view of the same.

Tnevalvc consists of a casing 1, which is provided with a valve seat 2 and a port 3 @nested below the seat and in alinemcnt with fle same. The water inlet 4 is located at le? side of the easing 1 and is in alineme'nt, er substantially so, with the valve seat'2. Pross the inner end of this inlet is a vertiv disposed narrow web or splitter 4a vc `.his 1n. line with valve and serves to dierstheipipact of water on the valve. The

Line 'provided with an outlet 5, which Specification of Letters Patent. smiezen mea August 1'1, '1907. serial No. 389,061.

Palcnted Aug. 4:,y 1908.

y is in alinement with lthe seat 2 and. ort 3.

The upper portion of thecasing 1 .is ormed into a' piston chamber 6. The piston 7 1s located in the chamber 6 and is connected by means of a stem 8 with the valve 9. The valve 9 is adapted to operate over the seat 2. The

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lsliding valve l is located in the cushion cham r and upon the lower portion of the stem 8 and operates over the port 3. 'The lower end of the stem S is provided with a cross pin 11, which is adapted to elevate the valve 10 when the said stem is raised. The interior of the water inlet 4 is provided with a circumferential groove 12, which is connected by means of a by-pass 13 with the upper portion of the piston chamber (i.

' fhe auxiliary valve-casing 14 is attached to the casing 1 and is connected by means of a by-pass 15 with the upper portion of the ist-on chamber 6. T he auxiliary valve 16 is ocated in the casing 14 and operates over the valve seat. 17 thereof. The spring 18 beers upon the top of the valve 16 and is un der tension to normally hold the saine closed against the seat 17. The side of the casing 1 is provided with an aperture or opening 19, which is surrounded by n threaded boss 20. The sleeve or bushing 21 21 fits in the aperture 19 and is providcd with a shoulder 22 which bears against the cnd of thoboss 20.

The said sleeve is held against rotation in the lower part of the boiler, while the ipe 28l is, y

connected with the upper art o a boiler. The pipes are connected wit i the T 29 which stands in the same relation to the boiler as an ordinary 'water column` pipe 25 connects with the Tconnection 29 and its center is on a line with tue normal The T 29 is provided.

water lineyof boiler. with t-he laterally extending arnis, and the valve casing 1, is provided with similar arms T he thermostatic,

31. The spacing rods '32 connectthe arms 30 and 31 together and are held in proper po-l 110 sition by Ineens of the clamp nuts 33, which are screw threaded uponthe ends oi thersnid closed cuttingl oil the escape o f water from chamber G, which establishes the ini? ial presand the clamp nut hold the valve easing 1 at sure. in the chamber G which 'iressurc thereon a proper distance from the T 29 which disi forces the piston' and vale closed. lly

. 5 tance remains constan e r the clamp iiuts' reason ol the valve l0 being slidable upon its 7D rod sind which bear against opposite sides of the arms 3f) and 31. The spacing rods 32 33 have been properly adiusted. The pipe stem ii is permitted to scatslighil' iii adis horizontal, or nearly so. in some invance ol' the. upper valve 9, thus cutting eff stances it. may dip toward the T 29m order the flow of water therethrough as the said to prevent a trap, but other means for pievalve nears its seat and consequently reventiiig a trap maybe emi eyed. The inner vent-ing it from being cut. Thus, it wil he 75 end of ihe pipe 25 is closed b v a plug 34, seen that an automatic tlicrmoslatically-opwhich is provided with :i pointed end 35. l erated boiler feed valve is provided and that 1 The lever 36 is fulcrunied between the extenthe parts are oi' simple-construction and ar sion 37 of the hub 21. The pointed end 35 of rangement and positive and ellieient in their the plug 34 engages one end of the bell crank operation and action. so i lever 36, while the o posiie end of the said ll'hat is claimed is:4 f i lever lies directly un er .the lower end of the 1. A feed valve connected with a boiler, a. A stem 38 of the auxiliar) valve 16. The wabushing attached to the valve casing, an ter inlet 4 is provided with a foraininous cy auxiliary valve, a lever lulcrumcd to the casinder 3'.) `which prevents solid matter from ing and having an end lfor engaging the stem S5 f entering the groove 12 and by-pass 13. of the auxiliary valve, a thermostat also con-l i: l The operation of the valve is as follows: nected with the boiler and being located at 5 So long as the water in the boiler is at its the normal water level thereof, and slidahly i j proper level the pipe 25 is filled wit-h water. l engaging said bushing and having contact i The feed water enters the inlet. -1 and a small with the power end of said lever. Y 90 iortion of it passes through the by-pass 13 2. A' valve casing connected with boiler 'g into the top of the piston chamber 6, and and having bot-h a piston primary valve and moves the piston-down and holds the valve an auxiliary valve within said casing, a ther- 9 closed against the seat 2. The water also' m'ostat connected with the'boiler and bein" :io passes from the chamber 6 through the bylocated at the normal water level thereofaiu 95 ass 15 into the auxiliary casing 14 and the having sliding connection with the valve casvalvo 1G is held closed against. the seat 17 by ing, a lever mounted within the valve casing the spring 18. When the water in the boiler and forming an operating connection bcfalls sulliciently to allon the steam to enter l tween the thermostat and the auxiliary it the pi e325, and the temperature of the valve. 100 .3 steam icing higher than that of the water 3. A valve easing connected iaith a boiler the said pi )e '.25 expands loncfitudiiially causing the ree end tziereof to slide in the bushing 21. The pointed end 35 of the plug 34 swings the lever 36 upon its fulcruin and the end of the lever located under the valve and having-both a piston primary valve and an 'auxiliary valve within the casing, a lever fulcruined within the casing and raving a 40 working end for engagement with the stein 105 -more water to pass stein 3S moves the said stem up, which carries with it the valve 16. 'lilius the water in the casing 14 is permitted to escape therefrom through the seat and port 17, and through the casing and ourlet 5. This ilow for the time being is con'inuous allowing from the chamber G to the chamber 14 and through outlet 5 than is admitted through the bjr-pms 13 which is relatively smaller than 15, thus releasing the water pressure in chamber 6 and permitting the greater pressure on underside of chamber to force the piston 7 up opening the valve 9 and the lowenvalve 10, thus permitting water to ilow from the inlet past the splitter 4, seat 2.a.nd4 port 3 of the casing through the outlet 5 thereof into the boiler. As the water in the boiler assumes its normal level it also rises in the pipe 25 and the ture contracts the pipe '25. and the operation above described is reversed. releasing the lever 36, permitting spring 1S to force valve 16 1 and out ber,

of the auxiliary valve, a thermostat connectcd with the boiler and being located at the normal water level thereof and engaging the power end of said lever and a sleeve connected intermediate the easing 4. In a boilerfeed valve, the combination of a casing having a piston chamber, a ciishion chamber and auxiliary valve chamber, a. pistou valve mounted in the piston chamber,

a second valve slidablv connected with the piston valve and operatively mounted within the cushion chamber, an auxiliary valve,

l a thermostat with boiler connections for cffecting the same to operate the auxiliary valve for the control ducts leading'to and from the and a screenfor covering t ing to said piston chamber.

iston chame duct lead- Y Signed at Manslield,iii the county of Richland, and State ot Ohio, this 29th day r- 125 steam previously contained therein is forced July, A. D. 1907. Y A out and the water being of lower tempera- GEORGE l?. COL-1.3K.

Witnesses:

J RowLAND BROWN, P. J. KELLEY.

and thermostat. 11o

of the piston valve, 1'10'

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