US502662A - Refrigerator-car - Google Patents

Description

(No Model.) Y

W. E. EAJSTNLMI.v REFRIGERATOR GAR.

Patented Aug., 1, 1893 A, 1r, n

llNrfrnn STAT-ns ATENT union.'

VILLIAM E. EASTMAN, OF POS'FON,4 MASSACHUSETTS.

REFmcERAToR-CAR.

SPECIFICATION forming part of Letters Patent No. 502,662,6 ated August 1, 1893.

Application tiled August 22, 1892. Serial No. 443,764. (No model.)

To ctZZ whom it mag/concern:

Be it known that I, WILLIAM E. EAsTMAN,

a citizen of the United States, residing at Boston, in the county of Suffolk and State of Massachusetts, have invented a new and useful Improvement in Refrigerator-Cars, of which the following is a specification. My present invention is in the nature of an improvement in certain details of construct1on of a refrigerator-car constructed in accordance. with the invention set forth in Letters Patent of the United States No. 469,296, `granted to me on the 23d day of February, 1892, for an automatic refrigerator; and it relates particularly to the construction of the ice-rack in the ice storage-chamber.

The cage or crib in the ice-chamber in my said patent is permanent as to its dimensions and capacity, though in colder weather less ice is required than when the weather ,is warmer. Besides, in the colder weather, the ice-supply should occupy the higher position in the ice-chamber in order that the air cooled by contact with it may be subjected to the warmer, expanding temperature throughout a longer course on its way to the merchandise storage-chamber and thus reach the latter at a temperature suiiiciently lower than that which it attains While in contact with the ice to have expanded to the volume req' uisite for decreasing proportionately the moisture, gathered from the ice, by the increased volume of the air adequate for my use of the latter as a refrigerant.

In the accompanying drawings, Figure l is a view in sectional elevation of arefrigerator car provided with my improvements, the section being taken at the lines 1 on Fig. 2 and viewed as indicated by arrows. Fig. 2 is a section taken at the line 2 on Fig. l and viewedin the direction of the arrow; and Fig. 3 is a broken perspective View, in the nature of a diagram, illustratinga construction of the ice-crib whereby it is rendered vertically extensible and contractible.

A is the car, which may involve the same construction except as to the details of my present improvement, as the car set forth in the aforesaid patent, thus being provided with walls r, a floor q and a roof p, all insulated, and divided inside into a merchandise storage-chamber B and ice storage-chambers C,

. of which latter but onejis herein shown, be-

ing sufficient for my purpose, though if two be'eruployed they may be constructed alike. Other features are Vthe opening o in the upper end of the insulating partition D separating the two chambersB and C, and which opening aifords communication between them, and an ice-crib E in the chamber C from the base of which an air-iiue F extends to the chamber B. Y

I extend liues lF inside the car on the floor or floor-level (for the flue or flues may be in the car-walls as well as in the position illustrated) from openings n in the base of the partition-wall at opposite sidesk of the longitudinal center of the car, and extend the iiues to or nearly to the transverse center of the car, there providing each with a grated side-opening m. Thus the air, which enters the chamber C through the opening'o from the chamber B is cooled by contact with the ice supported in the ice-crib E in the icechamber, whence it passes to and throughthe dues F,expanding therein under the influence of the higher temperature in the flues, from which it emerges into the chamber B accordingly increased in volume with its load of moisture, gathered from the ice, proportionately decreased,being thereby rendered the better refrigerant.

The ice-crib E is represented as formed with the upper and lower rectangular frames Z and Z of angle-iron and of dimensions adapting them to fit in the ice-chamber, the upper frame being supported stationarily in position. The sides of the rack are formed with bars 7c fastened at desired intervals apart in the frame Zand passing loosely through the base-frame Z', which is adjustably supported on them, as by means of collars t on the rods fastened by set-screws t. The top of the crib E may be open, but the bottom should be yformed with rods la' supported at their ends in opposite sides of the frame Z. p

By providing a vertically extensible and contractible crib whatever its form and con-` struction `may be, as by means of a vertically adjustable base, the capacity may be gaged' according to requirement.

Thus the base may be readily raised to reduce the capacity of the crib and lowered to increase its capac- IOO ity; according to the requirement in the icesupply, as in the matter of a colder or Warmer season of the year.

To render the ice-chamber accessible for adjustment of the rack, a door D may be pro- Vlded in the partition D.

What I claim as new, and desire to secure by Letters Patent, is-

l. n a refrigerator-car, the combination with the ice-st0rage chamber C of a vertically adjustable ice-crib in said chamber, substantially as and for the purpose set forth.

2. In a refrigerator-car, the combination with the ice-storage chamber C, of an ice-crib in said chamber having an adjustable base, 15 substantially as and for the purpose set forth. 3. In a refrigerator-car, lthe combination with the ice-storage chamber C, of an ice-crib E in said chamber formed with frames Z and Z and bars 7c and 7c', the frame Z being supzo ported and vertically adjustable on the bars k, substantially as and for the purpose set forth.

VILLIAM E. EASTMAN. In presence 0f- J. W. DYRENFORTH, M. E. WINN.

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