US355164A - Electric heat-regulator - Google Patents

Description

(No Model.)

R. L. GUION.

ELBGTRIG HEAT REGULATOR.

im M49 Patented Dec. 28, 1886.

NA PETERS. PhoiLhugraphar, Wnshingnn, D. C.

UNITED' STATES PATENT OFFICE.

RICHARD L. GUIN, OF ELMIRA, 'NEW YORK.

ELECTRIC H EAT-REGULATQR.

SPECIFICATION forming part of Letters Patent No. 355,164, dated December 28, 1886.

Application filed April '1, 1886. Serial No. 198,075. (No model.) l

To all whom i/ may concern.-

Be it known that I, RICHARD L. GUIoN, of

Elmira, in the county of Ghemung, in the State Y ofNew York, have invented new and useful Improvernents in Automatic Heat-Regulators, of which the following, taken in connection with the accompanying drawings, is a full, clear, and exact description. y

The purpose of this invention is to automatically regulate the temperature oftheinterior of buildings, or' of incubators or otherystruct ures or apparatuses; and the invention consists,

inthe novel combination, in an electric circuit, of a clock-work having a cam-wheel, a switch for opening and closing the circuit operated bysaid cam-wheel, electro-magnets, an armature adapted to engage and stop the clockwork, and a latch actuated by the cam-wheel and adapted to retain the armature out of engagement with the clock-work, all as hereinafter more fully described, and specifically set forth in the claims. ln the annexed drawings, Figure l is aface View of my invention with the front plate of the frame or case of t-he-cloclr-work removed; and Fig. 2 is a vertical transverse section on line x, Fig. 1, the spring and main gear through which said line passes being omitted to obviate confusion in t-he view presented.

The vsame letters of referenceindcate the same or corresponding parts. A

A represents a metallic frame or clock-case, on which is mounted the following clockwork: A main driving-wheel, l, receives its motive power from a coiled spring, 2, conriected with the shaft s fof said wheel and with the frame A. This wheel l meshes in a pinion, 3, on a shaft, P, as represented by dotted lines in Fig. 1. Said shaft P is extended across the frame and projects at opposite sides thereof, and has connectedto its I ends pulleys or cranks C C, which, by means in common with a gear-wheel, 6, on a shaft, s',

pivoted on the frame. The wheel 6 engages av pinion, 7, von another shaft, As, pivoted to the frame, and a gear-wheel, '8, on the latter shaft meshes in a pinion, 9,y secured to the pivoted shaft s3, to which the fly-wheel h is at-- tached. The described train of gearing, however, may be varied according to the speed.

of, and the other set consists of two pins, n a, l

projecting from the opposite side.

Horizontally across the upper part of the Wheel o, at the side from which the pins a a project, is a latch,j, pivoted at one end to ay suitable support on the frame A, and having its free end formed with steps or shoulders u a at different distances from the end, for the purpose hereinafter' explained. The intermediate portion of the latch is provided at its under side with a downward-projecting cam, j', which is encountered by the pins n n during the rotation of the wheel o, and thus lifts th free end of the latch.

a a represent' electromagnets, and d is the armature, which is pivoted, as at y, at or near the end adjacent to the wheel o, and has rigidly attached to said end an upright arm, d, upon the upper end of which the free end of the latch rests by one of the steps u. The armature is supported clear of the magnets by a spring, f, and when so supported the armature engages-the fly-wheel 7L, so as to stop the rotation thereof, and consequently stop also the movement of the entire clock-work. At the same time the arm d is lowered and swung toward the wheel o to allow it to engage the inner shoulder, a', of the latch j, which shoulder merely serves as a stopto limit the movement of the armature toward the fiy-wheel, as represented by full lines in'Fig. l-of the drawings. Vhen the electric circuit is completed through the magnets a a, the armature dis'drawn down and caused to release the liy-wheel IL, thus al- 'lowing the clock-work to run. In the said movement of the armature the arm d thereof' is swung to bring the upper end under the outer shoulder, a, of the latch, and as the pin n of the wheel o nieves from under the cam j of the latch, the latter drops and causes its roo outer shoulder, u, to catch on the upper end of the arm d', and .thereby retain the armature d out ofengagement with-.the fly-wheel h. Ahalf-revolution of the wheel o `brings the succeeding pin n under the cam j', and thereby raises the latch and releases the arm d'. The

' electric circuit through the magnets having in the meantime been broken, as hereinafter described, allows the spring f to draw the armature into engagement with the {1y-wheel h, and thereby stop the motion of the clock-work; hence it will 4be observed that the shaft P, on which the wheel o and the cranks C C are mounted, receives only a half-revolution at a time. netsa a is controlled by the following instrumentalities:

On the frame A is pivoted a lever or switch, e, one end of which is bifnrcated, and has the two arms thereof` straddling the shaft P and pin m of the cam-wheel 0,' so that during the rotation of said wheel the pin m thereof imparts an oscillatory movement to the lever c. In the path of the oscillation of the opposite end of the lever are two bindingposts, attached to the frame A and insulated `therefrom and arranged in such relative positions as to come in contact with thesaid end of the levere at the extremities of its oscillations. The pin mis so arranged in relation to the pins n n as to cause the former to carry the lower end of the lever ein contact with the binding-post i while one of the pins n moves from under the cam j of the latch j.

T denotes a thermostat, which is to be 1ocated in the apartment in which the heat is to be automatically controlled. Said thermostat may be of anysuitable style. For the purpose of illustration I have selected a thermostat of the class described in another application for end adapted to deflect laterally under the inv luence of heat. Said bar is composed partly of metal and partly of rubber, and its support is also composed of metal, and on said support,rat opposite sides of the free end of the thermostatic bar B, are two electric contact-points, e e, which are insulated from the metallic support of the bar B. A wire, s, is extended from the contact-point e to the binding-post fi', and another wire, s', is extended from the contact-point e to the binding-post 4'", heretofore referred to, and a third wire, s", is extended from the metallic support of the thermostat to one pole of the battery D. A wire, s, leads from the other pole of the battery to a binding-post, m; wires 8 and t connect the battery with the metallic frame- A, the current passing from the frame through wire t, magnets a, wire 8", and wire 8 to the battery.

The operation of my invention is as follows: As the heatin the apartment containing the thermostat T rises above the desired temperature, the thermostatic bar B deects 4and The electric circuit through the magf comes in contact with the contact-point e", and thereby closes the electric circuit through the wire s -and binding-post i, and thence through the switch-lever e and lnetal frame A to the magnets a a, and thence through the wire 8 to the binding post m', and from thence by wire s' to the battery D. The circuit, being thus completed, causes the magnets a a to draw down the armature d, and thereby releases the fly-wheel h and allows the clock-work to run. The engagementof the arm d of the armature with `the outer shoulder, u, retains the armature in its said position until the wheel o has made a half-revolution, when one of the pins n thereof lifts the latch and releases the arm d. The switch-lever e, having in the meantime been removed from the bindingpost i by the pin m of the wheel 0and the circuit thus broken, allows the armature to be drawnup by the spring f and thrown into engagement ywith the ilywheel h, to stop the motion of the clock-work. During this movement the cranks C C on the shaft P are turned so as to both close the valve or damper, which admits the draft to the re yof the heating apparatus, andopen a checkdamper, admitting air to the smoke-pipe of the same,the reby cooling the apartment heated by said apparatus. This change of temperature allows the thermostat T to resume its normal condition, and thus break the 'electric cir cuit. When the temperaturefalls below a certain degree, the thermostatic bar B is drawn over against the contact-point e and again closes the electric circuit, the clock-work being thereby again set in motion to impart a partial revolution to the shaft P, and thereby turn the aforesaid valves, so as to increase the draft through the lire of the heating apparatus. y

It is obvious that my invention can be arranged to also open and close the valves of steam-heating apparatus, so as to automatically control the flow of steam to the radiators located in the apartments to be heated.

Having described my invention,what I claim as new, and desire to secure by Letters Patent,

1. In an electric circuit, a clock-work having a cam-wheel,a switch for opening and c losing the circuit operated by said cam-wheel, electro-magnets, an armature adapted to engage and stop the clock-work,and a latch actuated by the cam-wheel and adapted to retain the armature out of engagement with the clockwork, as set forth. y

2. Inan electric circuit, a clock-work having acam-whecl with two sets of cams,aswitch` lever adapted to open and close the circuit and IOO lIO

operated by one set of said cams, a latch op` erated by the other set of cams, electro-magnets, and an armature held normally in engagement with the clock-work to stop the motion thereof, and adapted to engage the latch a clock-work, electro-magnets, the armature,

ment with the clock-work, a cam-wheel having two sets of cams, a latch actuated by one set of said cams and adapted to retain the armature out of engagement with the clock-work, an oscillatory switch-lever actuated by the other set of cams, and binding-posts in the path of said lever at the extremities of the oscillations thereof, substantially as described and shown.

4. ln an electriccircuit, the combination of a thermostat having electric contact-points brought in contact under the influence of heat, a clock-work having a cam-wheel with two sets of cams, an oscillatory switch-leveractuated by one set of cams, binding-posts in the path of said lever, electro-magnets, a pivotedarmature, a spring for drawing the armature into engagement with the clock-work to stop 2o the motion thereof', and a latch actuated by the other set of cams and adapted to retain the armature out of engagement withlthe clockwork, and cranks or pulleys on the shaft of the cam-wheel, substantially as described and 2 5 shown.

In testimony whereof -I have hereunto signed f my name and affixed my seal,in the presence of two attesting Witnesses, at Elmira, in the county of Qhcmung, in the State of New York, 3o this 9th day of March, 1886.

RICHARD L. Guion.. [L s] Y/'itness'esz FERD. D. POTTER, THEO. G. SMITH.

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