US294732A

US294732A - Theemometee

Info

Publication number: US294732A
Authority: US
Publication date: 1884-03-04
Anticipated expiration: 1901-03-04

Description

. a llw (fio Model.) H. GUTH.

THERMOMETER. No. 294,732. Patented Mar. 4, I884.

nlllllrlllllllrrllllrl If! (Ill/4iI!!!I!!!olrllllll lllll l II IIIII III .r?

UNITED STATES.

PATENT OFrIcE.

HENRY corn, or NEw YonK, n. Y.

THERMOMETER.

SPECIFICATION forming part of Letters Patent No. 294,732, dated March 4, 1884.

I Application filed January 26, 1884. (No model.)

T0 at whom it may concern frames for thermometers, and particularly to thosewhich are permanently fixed to vessels to indicate the temperature of the liquid con tained therein.

In order that others skilled in the art may know how to make and use my invention, I

will now proceed to describe the same in connection with the accompanying drawings, in Which ter with the protecting-casing turned to ex pose the scale, and Fig. 2 is a centralvertical section of the device.

In the drawings, A represents a casting of any suitable material, and of a size to corre spond with the mercury-tube to be used. The lower portion, a, of this casting is circular,

and is provided with a downward projection,

12, through which the tube passes on its way to the vessel, and to which the pipe inclosing the end of the tube, and which secures the thermometer in place, is attached. The disk at is cut away on its periphery to form a circumferential flange, 0,, upon which theshell B rests and freely turns. The flange 0 should be of a width equal to the thickness of the material of which the protecting-sleeve is made, so as to present a smooth surface at the point of juncture. The sleeve or cylinder B is composed of any suitable material, and is, as shown in Fig. 1, provided with an elongated opening, through which the scale is visible when that side is turned to the front. It is free to revolve on its rest on the flange c to bring the solid portion in front of the tube, to protect the same from accidental contact with other surfaces when the thermometer is not in use or when the vessel to which it is attached 5 is being cleaned or filled. The upper end of the casting A is provided with a disk, (2, of a diameter corresponding to that of the casing B, into which it fits snugly.

As a means of securing the tube in place, I provide the cap 0, having a depending circumferential flange provided with internal screw-threads, which engage with corresponding screw-threads on the reduced portion of the disk (I. The diameter of this cap 0 is preferably the same as that of the shell B, so as to form a neat joint, as at the bottom. Figure l is a front elevation of a thermomef Having thus described my invention, what I claim, and desire to secure by Letters Patent, 1s

1. The combination, in a thermometer-frame. of the vertical portion A, having integral therewith the disks d and a, the latter being provided with the flange c, and the casing B, adapted to rest on the said flange c and be re- 6 5 volved at will, substantially as described.

2. The combinatiomin athermometer-frame, of the vertical portion A, .having integral therewith the disks d and a, the latter being provided with the flange c, the casing B, adapted to rest onthe said flange c and be revolved at will, and the cap 0, provided with screwthreads for securing it in place on the disk a, adapted to secure the casing against vertical movement, substantially as described. 75

In testimony whereof I have hereunto set my hand and seal in the presence of two subscribing witnesses. HENRY GUTH. [n s.]

Witnesses:

HENRY O. BOTTY, FREDERICK A. BOTTY.