US83264A - Ira dimock - Google Patents

Description

I. DIMOCK.

Egg Boiler. y

Patented Oct. 20, 1868.

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DIMOCK. OF FLORENCE, MASSACHUSETTS.

Letters Patent No. 83,264, dated October 20, 1868.

APPARATUS FOR BOILING- EGGS.

-The Schedule referred to in these Letters Patent and making part of thev same.

To all/whom 'it ma/y concern:

Beit known thatl I, IRA DIMOCK, of Florence, in the county of Hampshire, and 'State of Massachusetts, have invented a new and improved Apparatus for Boiling Eggs; and I do hereby declare that the following is a full, clear, and exact description thereof,

which will enable those skilled in the art to make and use the same, reference being had to the accompanying drawings, forming part 'of this specification, in which- Figure 1 is a sectional elevation of my invention.

Figure 2 is a detail top view` of the adjusting-boss,

. temperature has been arrived at.

My invention consists in placing a fluid which will expand by heat, in a case, and in surrounding such case by another case,so as to leave an air-cavity, or with some substance which is a slow conductor of heat.

The quantity of liquid in the oase, the extent of the cavity for air, or the thickness of the slow heat-conducting substance, isso proportioned that when used,

say, for boiling eggs, the liquid within the instrument will have attained a given degree of expansion by the time the eggs are properly cooked, and this will be the case whether the eggs are placed in cold or boiling water.

My invention also consists in showing the degree of expansion in the iuid, within the case above referred to, -by causing it to act upon a piston in a cylinder, or actv upon a diaphragm, which piston or diaphragm is made to transmit the motion to a latch or catch, which holds a hammer, and allows it to strike a bell, and thus announce by sound that the proper degree of heat has been arrived at.

Though a liquid has been mentioned as the medium through which h'eat is transmitted to the eggs to be cooked, yet tle`apparatus will act when the eggs are exposed to the action ot' iteam, or a hot bath of sand or other suitable substance.

The manner in which my invention is carried into 'effect is illustrated in the accompanying drawlngs.

In the drawings, my apparatus is shown to consist of a receptacle for holding the eggs, (which receptacle may be a rack, basket, or frame-work, of wire or other suitable metal, ormateiial capable of undergoing heat without destruction,) combined with and forming part of a vthermo-annunciator, the construction and operation of 'which will now be particularly set forth.

The thermo-annuneiator consists of an inner cylindrical case, b, closed at its lower end, and resting upon another case, c, (as shown,) of 'larger diameter, so as to leave a space for air.

The upper end of the cylindrical case b is closed by an India-rubber diaphragm., b3, and this is secured by a cap, c, which screws upon the outer case, c, and also secures the ilange of a vertical tube, c2.

Within this tube a plug or piston, d1, is tted, which can slide freely up anddown in the tube c2, but is prevented from turning round by a pin, g, xed in the side of the tube c2, and passing into a slot in the plug or piston cl.

The lower end of a spindle, d, is made to screw into the plug or piston d1, and the upper end of this spindle slides through a bush, h; ixed in the.tube c2, and around the spindle d a helical spring, lc, is placed, one end of which acts against the bush h, and the other end against the plug or piston all.

To the upper end of the spindle d, a boss, d2, is secured, which is recessed upon its under side, so that it may form a catch all round, for the hook f2, of the hammer e, to take hold of, this hammer being placed on a fulcrum, f in a slot in the bush h, which comes .f opposite a slot in the side of the tube c?.

upwards until the incline-surfaces can pass, when the' weight of the spindle d and other attached parts, and the force of the spring k, will cause the spindle d to descend, so as to hold the hammer e in the position shown by iig. l.

A cap, l, forming a screw-head, is also attached to the upper end of the spindle d, by a screw, Z. This is milled upon the edge, so that it can be turned whenrequired, and the index-marks are placed upon the upper face, as shown in lig.. 2; and there is a pointer, eX, upon the hammer-lever, by which to set the index.

There are vertical grooves in the side of the bosspart l, one for each mark upon the index; and a screw, l2, is passed through the side of the tube o2, the point of which will enter one of the slots.

By pulling the head, Z, upwards until the end of the screw Il comes `opposite a groove, la, passing round the boss, the head, Z, can be turned, as required, until the' point of the screw comes opposite the groove correspending to the mark upon the index to which the instrument is to be set.

rlhe index is secured, when adjusted, by a pin in the head, l, which passes into a hole in the boss d2.

The bell el is fixed upon the exterior of the tube c2, as shown.

When the iiuid within the case b has become heated suiiciently to cause it to expand, the diaphragm, in yielding, permits such expansion to be felt by the spindle d, raising it, and thus liberating the hammer e, Whichlatter descends and strikes upon the bell e', thus announcing that the proper degree of heat has acted upon the eggs. V

Modifications of my invention may be made, as, for

example, those shown and described in a patent granted to me in England, September 30, 1867, (N o. 2,750,) in all of Which are employedthe non-conducting cases, which retard the penetration of. heat, so that a suicient time for cooking the eggs will elapse before the iuid within the inner case Will be made to expand, and thus announce the fact, by actuating a piston or diaphragm, and its accessory mechanism, or by raising the saiduid to a certain height on a scale.

I desire to be understood as not limiting myself to the precise arrangement or construction of the parts of the bell-hammer and its catch-mechanism, for the same may be variously modified Without departing, from the general features of my invention.

I claim as new, and desire to secure by Letters Patentl. The use, in an apparatus for boiling eggs, of a iiuid, surrounded by a slow heat-conducting material or air-cavity, substantially as described, in combinar tion with a bell or other sonorons annunciator, the striking-hammer of which is actuated to strike the same, from the expansion ofthe said iiuid, all as set forth.

2. The use of a iluid in a case arranged to act, by expansion, on a piston or diaphragm, Whichfwill transall substantially as shown and described, and for the purpose set forth. Y

3. `An egg-boiling apparatus, when constructed substantially as herein shown and described.

4. The combination, in an egg-boiling apparatus, of an egg-receptacle, al, of any suitable form, witha case, b, enclosed by another case, c, to retard the penetration of heat to Aa uid Within the inner case, substantially as described.

IRA DIMO CK.

Witnesses:

A. B. CLARK, SAMUEL PORTER.

mit movement, so as to release a catch and' ring a bell

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