US123077A - Improvement in refrigerating provision-cars - Google Patents

Description

Jaim Jae Patsnted Jan. 30, 1872.

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UNITED STATES RATEN Tf.SlJElf C JEELF JOHN J. BATE, OF BROOKLYN, NEW YORK.

IMPROVEMENT IN REFRIGERATING PROVISION-CARS.

Specieation forming part of Letters Patent No. 123,077, dated January 30, 187Q; antedated January 15, 1872.

I, JOHN J. BATE, ofthe city of Brooklyn, in the State of New York, have invented certain Improvements in Refrigeratin g Provision-Cars, of which the following is a specification:

My invention relates to that class of cars commonly called provision-cars, and which are intended for the conveyance of fresh meats, game, etc., the distance between i the point of departure and of delivery being so great as to require the use of some artificial means for the preservation of the meat, &c.

The accompanying drawing represents a car with my improvement forming a part thereof,

Figure l being a view of the interior of the car, the roof being removed, and Fig. 2 a view by vertical section on the dotted line of Fig. 1.

The means shown by this drawing are designed to keep up a free circulation of air through the provision-chamber a, the air being used over and over again, and being forced through an icechamber, b, well filled with ice, by which the air is cooled, deprived of its moisture, and purified, so that the air circulating through the provision-chamber and the meats, &c., within the chamber, will be kept in a sweet and pure condition. The circulation of air, when the car isiin motion, is maintained by a blower or rotary fan. c, placed in the messengers room d, or in the ice-chamber. The rotation of the fan is kept up by a band or cord passed around the axle of the car, around a pulley, e, and a pulley, f, on the shaft of the fan, as is shown by Fig. 1. The air is brought over the partition g, between the icechamber and the provision-chamber through the space h, conducted down through the ice to the entrance i of the blower, and passes from the blower for distribution through the perforated pipe 7'. At the lower part of the partition g is a hinged door, k. This door can be kept closed while the blower is in action, so that the entire air will pass through the space h, and down through the ice-chamber to the blower; or it may be opened to a greater or less extent for the passage of air through it, so that the strata of air nearest the bottom of the provision-chamber will be more fullydrawn toward the blower than when the air is drawn through the space g only.

When the blower is not in action, the car being at rest, by opening the door k there will be a circulation of the air from the provisionchamber through the door-space and space h, and through the ice-chamber, thus preventing a stagnation of air in the provision-chamber.

In the drawing, lindicates the loor of the car, m the roof, and n the ends of the car.

This arrangement of means for refrigeratin g the provision-chamber of cars may be applied to the like chambers of ware or provisionhouses, and chambers for keeping meats and provisions generally. When so adapted the fan-blower may be operated by any motive power at hand, or mechanical devices convenient, among which may be included clockmovements. When the last-named means are used I prefer that the movements of the clock be actuated by India-rubber springs, instead of metallic springs or weights.

I am aware that a forced circulation of air in refrigerating provision-cars is not new, the same being set forth in the patents granted to D. E. Soines, in 1867 and 1868; and in apatent granted to W. Bray in 1868; but in neit-her of their patents is there an arrangement for hav ing a natural circulation of the cooled air when the forced circulation is suspended, as is recited in this specification.

What I claim as my invention is- The arrangement of the door k, in relation to the air-spaces, ice-chamber, andtubes, for allowing the circulation of air when the car is not in motion or the blower in action, a-s here in recited, in combination with a blower or means for a forced circulation ofthe air, as described.

This specification signed this 12th day of April 1871.

J OHN J. BATE. Witnesses:

JOSEPH J. BATE, F. H. BELL.

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