US1265928A - Heating system and hydraulic vacuum-generator. - Google Patents

Description

B. W. McCLYMONT. I

HEATING SYSTEM AND HYDRAULIC VACUUM GENERATOR.-

APPLICATION HLED JULY 24.1916

1,265,928. V v Patented May14, 1918 2 SHEETS- -SHEET I.

B. w. McCLYMONT. HEATING SYSTEM AND HYDRAULIC VACUUM GENERATOR.

APPUCATION FILED JULY 24.1916. 7 I

Patented May 14,1918.

m M 1 m s m BRYCE W. MOCLYMONT, 9F DETROIT, MIIJHIGAN.

HEATING SYSTEM AND HYDRAULIC VAGUUlii-GENEBATDE.

messes.

To all :wkom it may concern: I 1 Be t lmown'that I, Baron W. MoCLY- 'MoN'r, a citizen of the United States of America, residing at Detroit, in the county of Wayne and State of Michigan, have in vented certain new and useful Improve ments in Heating Systems and Hydraulic Vacuum-Generators, of which the following is a specification, reference being had therei in to the accompanying drawings. To produce vacuum at predetermined times in connection with 'a heating system,

- producing vacuum or suction which will positively withdraw air from a heating system,'and it is the installation of a hydraulic vacuum generator in connection with a heating system to whichthis invention relates.

To meet all requirements, it is necessary that the vacuum system in connection with a heating. apparatus be manually placed in operation and automatically controlled after the apparatus has been placed in operation, and in order that my invention may be fully understood, reference will now he had to the drawing, wherein A Figure l is a diagrammatic view of. a heatingsystem or apparatus provided with a hydraulic vacuum generator in accordance with my invention, and

Fig. 2.- is a longitudinal sectional view of a hydraulic vacuum generator provided with a diaphragm control.

In the drawings, 1 denotes a series of radiators or a steam circulating medium having valves 2 adapted to be. manually opened and closed. The valves are connect ed by branch pipes 3 to a feed pipe 4 in communication with a suitable source of steam or hot water 5, as a steam or hot water boiler-or a central steam heating system. For the purposes of explaining invention, the source of steam will be hereinaiter referred to as a. steam boiler, and with all steam generators, there is necessarily present a water supply as an agent ofthe heating system, which in the present instance is represented by a pipe 6 supplied with water under ity pressure. The pipe 6 is provided Specification of Letters Fate'nt.

npylicatlon filed Iuly 2. 1916. Serial No. 110,995.

by, the

Patented Mayihiili.

with a branch 7 and connected thereto is a hydraulic vacuum generator generally designated 8. The drain or discharge pipe 9 and is connected by a pipe 10 to a main air pipe 11. This main air pipe is connected by branches 12 to airvalves 13 of the radiators 1 adapted to he closed by steam.

The diaphragm type of vacuum generator,

includes a shut off valve 14, an ejector 15, an d a diaphragm casing 30 which are installed at such a point in the heating system as to easily controlled from heated by the system. A

any compartment" i V generator is provided with a The shut off valve 14 comprises a conven tlonal valve body havingua horizontal apertured partition 16 afi'ort jing a valve seat, and connected to said valve body is a bonnet 17 having a stuiiing hdx '18 for a valve stem 19. The valve steih '19 has the inner end thereof provided with a rotatable valve 20 and a cvlindricalportion/21 of said valve extends into a cushion chamber 22 in the inner end of the bonnet 17. The wallsof the valve portion 21, are longitudiihilly score-d or grooved, as at 23, wherehya quan-. Way of water may enter the chamber22- and.v serve as a cushioning agent, also the grooves 23 allow a sufiicient quantity of Water to enter the chamber 22, under pressure, wherelever 25 and the short endor arm of said lever is pivotally connected, as at 26,' t0 a link 2''? pivotally mounted, as at 28, upon the body of the shut oii' valve 1.4. The long arm of the operating lever 27 extends over the diaphragm casing 30* and is formed with an apertured lug 29, the will hereinafter appear.

The ejector 15 comprises a casing or chainber connected to thei air pipe 10 and provided with a jet 80, aiiozz ie 31, and an ogee Water seal 32. The jet-30 has the outer end thereof connected to the *shut ofi' valve 14 and the innerend of said jet extends into the nozzle 31, which is mounted in the inner end of the ogee Water seal 32. This ogee water seal has the outer end thereof connected to the water discharge or drain pipe 9 and adjacent the connection is a boss 33 constituting one of the supports for the diaphragm casing 30 The diaphragm casing 30 is preferably made of two sections 34 purpose ofwhich pressure of Water will close the A and 35, with the section 34 provided with a nipple 36 mounted in. theejector body 15 and establishing communication between the vacuum chamber of said ejector and the section 34: of the diaphragm casing. Between the sections-34 and 35 of the. diaphragm casing means 38 connecting the sections 34 and 35, also a fastening means 39, which besides connecting the sections 34 and 35 retains said sections in engagement with the ogee water,

seal 32. Connected to the diaphragm 37 is a plunger 40 extending out of the casing section 35 and through theapertured lug 29 of the operating lever 25. The outer end.

, ing there is mounted a flexible diaphragm I 37, said diaphragm being held by a fastencoiled compression spring 42having a' pre-p determined expansive force holding the diaphragm normally in the position shown in Fig. 2. i

.In order that the shut-off valve 14 may be manually opened, the operating lever 25 has a suitable connection i3 whereby it may be actuated from any compartment served by the heating system.

When the lever 25 is raised and the'valve s ed, Water or other motive fluid is disciia rged'by the jet 30 into the nozzle 31 and pressure is reduced in the ejector casing or ody 15 and a vacuum or suction produced therein which immediately'draws' air from the pipes 10, 11 and '12, valves 13 and radiators 1, the, exhaust of air allowing steam to v rapidly circulate throughout the heating sys- As the vacue tem and close the air valves, um increases in theejector, caused by the closing of the air valves 13, the expansive force of the spring 42 is gradually overcome and the diaphragm 37 is actuated against the action of the spring to shift the plunger menses .40 inwardly, thereby automatically closing the-valve 14, and causing a cessationin the operation of the vacuum generator.

When the diaphragm 3'? is shifted inwardly, the head or nuts 41 moves the operat inglever 25 of the shut0fl:' valve 14 and imparts sufiicient movement to the valve 20 whereby the water within the chamber 22,v

under pressure, positively seats the valve 20 and shuts ofi the supplyof water to the jet 30. The spring42 flexes the diaphragm 37; f

to normal. position and the vacuum generator is in condition for another operation.

What I claim is A hydraulic vacuum generatorcomprising an injector casing adapted to receive motive fluid, a sectional diaphragm casing mounted on said injector casing, a nipple connecting the lower section of sa d diaphra am casing tosaidi injector casing to have pressure reduced therein by the passage of motive fluid a through said injector casing, fastening means I for connecting the sections. of said diephragrn easing with one of said fastening" means attaching said diaphragm casing to said injector casing, a diaphragm between ing above said diaphra casing, means connected to the top of said diaphragm and ex tending out of said diaphragm casing adapted to actuate said operating lever to close said valve when said diaphragm is flexed in a downward direction, and means'in said i the sections of said diaphragm casing, a valve connected to said injector'casing and controlling the supply of motive fluid there: a to, an operating lever for said valve extend.

diaphragm casing adapted to restoresaid diaphragm and said lever actuating means to,-

normal position. *1 I a In testimony whereof'l afiix my signature in the presence oftwo witnesses.

BRYCE W, McCLYMONT; Witnesses:

KARL H. BUEEIEfl, Anna M. 130113..

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