US1298054A

US1298054A - Oven-thermometer.

Info

Publication number: US1298054A
Application number: US26092918A
Authority: US
Inventors: Horace B Kerlin
Original assignee: Individual
Current assignee: Individual
Priority date: 1918-11-04
Filing date: 1918-11-04
Publication date: 1919-03-25
Anticipated expiration: 1936-03-25

Description

H. BL KERLlN.-

0VEN THERMOMETER. APPLICATION FILED NOV. 4i I918- Patented Mar. 1919.-

e r %m.m L m .6 m m mailman-mum- HGRAGE B. KERLEN, 03? HAMILTON, OI-IZG.

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Sipecification of Letters Patent.

Patented Marl 25, 1919.

Application filed November 4, 15-18. Serial 1% 0. 2603559.

. To all whom it may concern:

Be it known that I, HonAon B. KERLIN, a citizen of the United ed certain new and useful Improvements in Oven-Thermometers, of which-the following is a specification. I

This invention pertains to improvements in that class of thermometers adapted for attachment to the door of an oven, and the invention will be readily understood from the followin description taken in connection with t e accompanying drawing in which Figure l is a face elevation of an oven thermometer exemplifying my invention:

Fig. 2 a horizontal section of the same, in the plane of line a of Figs. 1 and 3:

Fig. 3 a vertical section in the plane of line b of Figs. 1 and 2: and x Fig. 4 a plan of the thermometer, illustrating a modified form of easing.

In the drawing, referring to F 1, and 3 1, indicates the general casing of the instrument:

2, a vertical angular recess in the front thereof:

3,'a scale-plate removably secured to the back of recess Eat a distance from the front of the recess:

4:, a thermometer-tube secur d against the front face of the scale-plate:

5, an upwardly'bent portion of the thermometer-tube at the rear of the scale-plate, the upper termination of this upwardly bent P01131011 containing the bulb of the tube:

6, graduations upon the face of the scaleplate: 40

7, a chamber in the casing to the rear of scale-plate 3, the scale-plate separating the two

chambers

2 and 7 8, cars projecting from the casing to receive screwstc attach the casing to a plate forming part of the oven-door; and

9, the oven-door, tothe exterior of which the casing .1 is attached. "The scaie-plate separates the easing into

separate compartments

2 and 7, the former of which contains the thermometer tube 4,

- the latter chamber containing the bulbed upturned portion 5 of the tube, the-back wall of the chamber 7 being formed by the ovenidoor to which the casing is attached. The

compartment? being; separated from the oven by theoven-door 9, the normal reading States, residing at Hamilton, Butler county, Ohio, have inventof the graduation 6 would indicate a temperature within the oven, say at a point-midway of the'depth of the oven. These graduations on the scale pIate. may be'properly calibrated by comparison with a therznome ter having its bulb disposed at the center of the oven, the scale-plate thus indicating actual oven temperature.

The arrangement dispenses with the proindicates the outer wall of the door; 10 the inner wall; and 11 the space between them.

In this case the casing 1 may be attached to the inner wall 10 of the door, and the outer wall 9 may be provided with a perforation to permit the forward protrusion of the casing. In any event the upturning of the bulged portion of the tube avoids the protrusion of this portion into the oven and permits the desired series of graduations to be included in a small vertical compass.

I cla1m':

jection of any portion of the thermometer 1. An oven thermometer comprising, a cas:

mg provided with a front compartment and a rear compartment, a scale-plate separating the two compartments and bearingcorripensated graduations to indicate oven temperature to the rear of the oven door portiom an oven-door-portion constituting the rearwall of the rear compartment, a thermometertube portion secured to the front of the scale plate, and a bulbed portion forming aprolongation of the thermometer-tube disposed in the rear compartment of the casing at the rear of the scale-plate, tially as set forth.

casing provided with a, front compartment and a rear compartment, a scale-plate separating the two compartments and bearing compensated graduations to indicate oven temperature to the rear of the oven door portion, an oven-door-portion constituting combined substam- I 2. An oven thermometer comprising, a

scaIq-plate, co mbin0 l Substantially as set forth.

3. An" oven thormomotvrrow )ris'inm- -21 Casing having :1 fonvurdly opelrrotnngular re'cess, a 5calo-plat0 wrrm-d zrt zrdlshmco from the front ol sun] roovss'ancl svparatmg the f-omva-rdl v open MW fronru roar recess in the '(rz ljngaml hearing comppnsaifed grad lmtlons on' ltS from, means for socurmg tho camng 'agamst tho from of mrovon-(loorportion, a t'hermonnotcrQtubc SOClll'MlfiilillSt tho-front ofthu scale-plate, :md a vbulbcd thermometer tubcrpo'rt-ion' disposod in the' roar recess of 'thocus mg, combined subshrn- 1 tinlly as forth,

4 An ormr thermometer comp'rmng, :1

oasing'hzrving gl lroar oolnparhx'lelit and :i fol'-" war-(11y open front compartmmlt,- mmu'ms for portion, 41 sculwplatu sopnrating tho vtwo compm'tnwn'ts of the casing. and bouring 'compm'lsated gru duzrtionson its front, a thurmomotor-t-ubo soonrml in front of tho 50:110- phlte, and- :1 hulhqd Hwrmonwirr tube portion dispocd inrthe roar rl'mmhv'r of tho casing, rombi'nod substantially as srfort'h.

' HORACE 13.: KERLIN. \Yitnesss:

'M .f S. "BILnEx; C AR ES GRESSLE;