US577327A - Apparatus - Google Patents

Description

(No Model.)

. W. F. SINGER. GAR REFRIGBRATING APPARATUS.

- 4 N0. 577,327. Patnted Feb. 1 6, 1.897.

,Lm w \R v l 3j UNITED STATES WILLIAM F. SINGER,

PATENT OEEICE.

OF NEW YORK, N. Y.

CAR-REFRIGERATING APPARATUS. L

SPECIFICATION forming part of Letters Patent No. 577,327, dated February 16, 1897.

Appiicaion nea October 7,1895.

To all whom, t may concern.-

Beit known that I, WILLIAM F. SINGER, a citizen of the United States, residing at New York city', in the county of New York and 'State of New York, have invented certain new v ters of reference marked thereon, which form a part of this specification.

This invention relates to certain new and useful improvements in car refrigeration; and it has for its object the production and maintenance of a low degree of temperature within a car bythe use of a pump or pumps which are provided with a pivoted and balanced. weighted lever adapted to be oscillated by the up-and-down or jolting movements of the car in its transit, the said pump or pumps serving to exhaust the air from hermeticallysealed tanks or chambers located within .the

c .car and containing volatile hydrocarbons or other liquids or chemicals, the expansion of which into vapor resulting in production of cold Within the body of the car, as will be readily understood by.those skilled in the art to which the invention pertains.

To this end and to such others as the iuvention may pertain the invention residesin the peculiar constructions and in the novel combination, arrangement, and adaptation of parts, all as Inore fully hereinafter described, shown in the accompanying drawings, and then specifically defined in the appended claim.

The invention is clearly illustrated in the accompanyingdrawings, which, with the letters of reference marked thereon, form a part of this specification, like letters of reference indicating the same parts throughout the several views, and in which drawings- Figure l is a longitudinal vertical section of a railway-car provided with my refrigerating apparatus. Fig. 2 is a transverse vertical section of the car near one of its ends; and Fig. 3 is an enlarged view, in side eleva- Seral No. 564,928. (No model.)

tion, of the pumping mechanism, parts being shown in section.

Reference now being had to the details of the drawings by letter, A designates a rail- Way refrigerator-car provided at its ends with my refrigerating apparatus, and although I have shown the apparatus in the present instance as applied to both ends of the car and in practice prefer this construction or disposition of the apparatus as tending to produce the best results with the greatest possible economy in space, still it is at once evident that the apparatus may be placed in other parts of the car if for any reason it should be desired, and it is equally evident that but a single pump or set of pumps may be employed if preferred, and as the apparatus which I have shown in the opposite ends of the car is in every respect similar a description of one will suffice in this connection.

vB is a hermetically-sealed tank or chamber, preferably of sheet metal, located in the present instance at one end ofthe car. This tank is provided with a suitable cover C, and directly above this cover a cover D is provided in the roof of the car for convenience in filling the tank.

Located beneath the tank B are two diaphragm-pumps E and F, one of the pumps being placed directly above the other, the upper pump E being inverted, so that the diaphragms E' and F will be directly opposite, one above the other, and these diaphragms are at their centers connected by the link G, which link is at or about its longitudinal center provided with an enlarged portion G', having formed therein a transverse opening G2, which opening is of the least diameter at its longitudinal center and from this central point enlarged outwardly, as shown.

H is a lever which at a point between its ends is pivoted to a xed point. One end of the lever is inserted Within the opening G2 in the link G, and the opposite or'free end of the lever is provided with a suitable weight H', while the said lever near its Weighted end is attached to a Wirewhich connects two spiral springs I I, said connecting-wire being passed over a suitable pulley, as shown clearly in Fig. 2 of the drawings, the wire serving to ICO maintain a nice balance of the weight and render it sensitive, so as to cause it to readily respond to slight movements of the car, as will be readily understood.

J is a pipe which connects both of the pumps with the upper portions of the chamber or tank B, and K is a metallic hermeticallysealed chamber, through which the air or vapors drawn by the pumps from the tank or chamber is conveyed by means of the connecting-pipe L, the same being discharged through a suitable outlet-pipe M through the bottom of the car.

The operation of the device will be readily understood in connection with the foregoing description. The tank or tanks B are partially filled with volatile hydrocarbons or other liquids or chemicals adapted to the pur pose. The jolting movements of the car will serve to cause the weighted end of the lever II to be thrown up and down, thus operating the pumps and exhausting the air from the tanks or chambers B and producing partial vacuums therein. The liquids Within the said tanks being thus relieved of pressure will at once vaporize and the vapor will be removed by the action of the pumps. As will be readily understood, this vaporizing or' eX- pansion of the hydrocarbons or other chemicals within the tank will, in increasing' its volume, produce a low degree of temperature, which will be imparted to the interior of the car and serve to effectually cool the same. It will also be understood that if for any reason the car should remain idle or side-tracked for any unusual length of time the pumps may be operated by hand power.

In order to prevent the water or other liquid from slopping and to prevent the possibility of its entering the outlet-pipe leading to the pump, I provide two horizontally-disposed partltions N and N', one above the other, with the lower partition at a point di rectly above the surface of the liquid in the tank. These partitions N and N are both provided with perforations throughout their entire surfaces, the perforations in the upper partition alternating with those in the lower partition, as shown, thus preventing the water from passing above the upper partition, as such liquid as may pass through the lower partition would contact with the surface of the upper one.

I am aware that it has heretofore been proposed to actuate a pump by the jolting move ments of a car in transit, but it has heretofore been proposed to connect the pump incohanism within the car with the car-truck, and I am not aware that it has heretofore been proposed to utilize the movements of the carbody to operate a pump by any construction wherein the pump and its actuating mechanism has been contained entirely within the body of the car.

In a car-refrigeratin g apparatus of the character described, the combination with the carbody of a hermetically-sealed tank within the car, two diaphragm-pumps also within the car one of the pumps being inverted and the diaphragms of the pumps being connected as described, a lever having one of its ends in

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