US1602352A

US1602352A - Thermostat

Info

Publication number: US1602352A
Application number: US81016A
Authority: US
Inventors: Thomas J Foley
Original assignee: Individual
Current assignee: Individual
Priority date: 1926-01-13
Filing date: 1926-01-13
Publication date: 1926-10-05
Anticipated expiration: 1943-10-05

Description

Oct. 5 1926. 1,602,352

T. J. FOLEY THERMOSTAT Filed Jan. 13, 1926 v 2 Sheets-Sheet l Patented Oct. 5, 1926.

UNITED STA T'ES PATENT OFFICE.

THOMAS-T. FOLEY OF KANSAS CITY, MISSOURI.

THERMOSTAT.

Application flea January 13, 192a Serial No. 81,016.

This invention relates to a thermostat, the

' combination and arrangement of the several parts, to be hereinafter fully described, illustrated 'in the accompanying drawings and specifically pointed out in the appended claim.

In describing my invention in detail, reference will be had to the accompanying drawings wherein like characters deno te.

like or corresponding parts throughout 'the several views, and in which Figure 1 is a view partly in section; showing the invention in use. v

Figure 2 is an enlarged sectional view through one form of the gas controlling means. t

Figure 3 is a sectional view through the 'tube arranged in the tank for carrying the expansible material. I x

Figure 4 is a' section on line 4-4 of Figure 2. v V

Figure 5 is a sectional viewithrough another form of gas controlling means.

, Referring to Figure 1, the water tank is shown at 1 and the coil is shown at 2, the.

Y coilbeing connected with the tank by the terminals 3. The housing for the coil is shown at4 and the burner 5,for the housing is provided with a pilot burner 6 which isconnected by the pipe 7 with the gas supply pipe 8. This supply pipe is incommunication with a chamber 9 formed .in a casing .10 by a partition 11 and the chamher is connected with the burner by the telescopic pipes 12, so that the gas must pass through the chamber to reach the burner. A valve 13 engages the top of the pipe 8 and the stem 14'of said valve passes through a hole in the partition 11 and has a plate 15 on its upper end which is engaged by a coiled spring 16 on the stem and arto that before described.

1 'What I claim is 2- ranged between the partition 11 and the plate. This spring tends to hold the valve in open position so'that. gas can pass to the burner. An expansible member 17 of disk shape is held to the cover 18 of the casing lO'by the nipple 19 and said member engages'the plate 15 so that when said memher is expanded, it presses upon the plate 15 and thus push-es the stem 14 downwardly to force the valve 13 upon its seat and thus shut off the passage of gas to the burner. A tube 20 pro ects into the tank 1 and is car ried by a nipple 21 threaded in the tank and provided with a packing gland22. A small tube 23 has one end connected with the outer end of the tube 20 by the plug 24 and its other end is connected with the nipple 19.

The tube 20 and the parts connected there-' with are adapted to contain expansible ma terial which, when acted upon by heat, will. expand and thus cause the member 17 to expand, which will act upon the stem and valve to close the valve and thus shut off the supply of gas'to the burner. When the water cools in the tank, the material will contract so that the spring 16 will be petmitted by the mernberl? to open the. valve so that the. burner will start up again, and

in this way the temperature of the water in the boiler will remain constant.

Figure 5 shows a slight. modification in which the member 17 is made of bellows shape instead of diskshape. In other respects, this form of the invention is similar.

It is thought from the foregoing description that the advantages and novel features of m invention will be readily apparent. I diesire it to be understood that I may make changes in the construction and in the combination and arrangement of the several parts, provided that such changes fall within the scope of the In combination with a boiler and its heater, a casing having a partition therein dithe casing into an upper and lower viding cham r means for connecting the lower cham er with the gas supply and with the burner, a valve in the chamber for controlling the flow of gas therethrough, a stern connected with the valve and passing appended claim.

through the partition, a diskon the upper end of the stem, a spring on the stem be tween the disk and partition acting'to hold the valve olf its seat, an expansible member forming a chamber arranged in the upper 'chamber of the casing and having its lower end engaging the disk, a nipple connected with the upper end of the expansible menu her and passing through the top of the easing, a tube projecting into the boiler and containing expansible material anda pipe THOMAS J. FOLEY.