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Publication numberUS430150 A
Publication typeGrant
Publication dateJun 17, 1890
Filing dateDec 3, 1889
Publication numberUS 430150 A, US 430150A, US-A-430150, US430150 A, US430150A
InventorsCharles G. Schmidt
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
US 430150 A
Abstract  available in
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Claims  available in
Description  (OCR text may contain errors)

(NR Model.)


Patented June-1'7, 1890.

4 In renter 2 @w/ MAM 0., WASHINGTON,




SPECIFICATION forming part of Letters Patent No. 430,150, dated June 17, 1890.

Application filed December 3, 1889. Serial No. 332,396. (No model.)

of Ohio, have invented certain new and use-,

ful Improvements in Combined W'agon and Knockdown Refrigerators; and I do declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it apper-' 'tains to make and use the same, reference being had to the accompanying drawings, and to the figures of reference marked thereon, which form a part of this specification.

This invention relates to improvements in delivery-wagons, and principally to such as are used for the transportation of meat and other articles which may be affected by the heat.

The object is to provide such vehicles with a refrigerator attachment in order to keep such perishable articles fresh during the hot season while in transit from the stores and warehouses to the consumers.

A further object is to have the refrigerator attachment easily removable at the beginning of the cold season when its services may be dispensed with, and it therefore becomes unnecessary to carry the additional weight of the now useless device. I also intend to provide a chopping-board suitable to be used to cut and handle the meat on, and means for its proper support and retention.

I attain these objects by the construction illustrated in the accompanying drawings, in which- Figure 1' is a longitudinal section of the wagon with the'refrigerator in position. Fig. 2 is a central vertical cross-section of the upper part of the wagon; and Fig. 3 is an end view of the wagon, taken in about the same position as shown in Fig. 2.

6 is the ice, and 7 the meat, chamber.

8 is the front, and 9 the rear, wall.

10 10 are the side walls.

11 is the top, and 12 the bottom.

So much of the two side walls, top, and bottom, as is between front and rear walls, and thereby forms part of the refrigerator, is double and lined with paper between, as

shown at 13, in order to make these parts more impervious to the outside temperature and lessen its unfavorable influence on the me.

Other means might be used to make these walls non-conductors for heat, but the described construct-ion appears the most suitable one, as it is both light and cheap. The difference of these double thick portions of top, bottom, and side walls and their thinner parts outside of the refrigerator proper forms a suitable abutment for front and rear walls to rest against, and by securing these latter with screws at those points a very good joint is obtained.

14 14: are two rails secured to the sidewalls between front and rear wall. They may have the meat-hooks secured to them, and at the same time serve as a support for frame 15, having the pan 16 and drip-trough 17 below it. The pan slopes from the sides of frame 15 toward the center, where it is open to permit the melt-water to escape to drip-trough 17. From. here it escapes through pipeslS to the outside.

19-is the ice-grate, concave toward its center in order to keep the ice from bumping against the ice-cage 20. This latter confines the ice 011 the grate and prevents it from falling against" the interior of the walls of the refrigerator and injuring same, a possibility which exists when the wagon is moving 011 steep grades. To attain this object more properly, the walls of the ice-cage lean inwardly with their upper ends, where they are secured to strips 21, fastened to the top. Their lower ends rest and are secured on produced in one direction by. bending the bars as shown in Fig. 1, and in the other direction by increasing their thickness as they approach the frame, as shown in Fig. 2. The bars are secured to end pieces 22, by which they are all united, and thus form the grate. In order to permit access to the interior of the ice-cage for purposes of supplying ice, an opening 23 has been provided in the front wall 8, to which the adjacent part of the icecage connects, so that the opening of door 24 also opens the latter. ,7

Access to the provision-chamber is had through a door 25 in rear wall 9. Between this wall and the tail-gate 26 is a space which may be used to keep the various cutting-tools In 27 is a cutting or chopping board hinged to a rod 28, reaching clear across the wagon, and when down rests on the bottom of the former, as shown in dotted lines in Fig. 1. When in this position, part of it projects beyond the bottom and sides of the wagon, in order to permit a free movement in sawing meat, which cannot very well be done within the limited space inside of the wagon. The board is smaller than the width of the wagon and hinged loosely, so it may be pushed either way to its extreme limit, thereby producing a free and open space between it and the adjacent rear wheel for the vender to stand in and permitting him to saw either right or left handed, whatever side of the wagon he may elect to stand on, pushing the choppingboard away from him to the extreme other limit on the opposite side. The saw is thereby given a free and unobstructed movement over the board outside of the wagon. Rod 28 prevents the board from tipping while down and extending beyond its support formed by the bottom of the wagon.

29 is a gravity-catch, keeping this board up, and at the same time locking the rear doors. In order to reduce the possibility of spilling any melt-water from the drip-trough into the provision-chamber, I have provided two escape-pipes, as already explained, one of which will always guide the water off should the wagon sway from side to side or move on an uneven road.

The arrows in Figs. 1 and 2 indicate the direction in which the cold air moves.

When the use of the refrigerator becomes unnecessary in the late fall, it may be taken out without much trouble. The nut on one end of rod 28 is unscrewed, releasing the cutting-board 27, and the front and rear wall are unscrewed, exposing the interior and permit ting easy removal of the ice-cage and of frame 15 with the ice-grate, pan 16, and trough 17. \Vhen the hot season approaches, the same parts are just as easily reattached in reverse order, as just'described.

Having described my invention, I claim as new 1. In combination with a refrigeratorwagon constructed substantially as shown and described and having its rear wall set in from the end, producing thereby a clear and open floor-space extending beyond said wall, a chopping-board longer than this floor-space, but

not as wide as the wagon-body, so as to extend outside of the body of the wagon when down during use, and preventing the latter from interfering with the necessary free movements in sawing meat, the'inner part of this chopping-board resting on the extending floorspace, its tipping over being prevented by a suitable iron rod passing clear across the wagon, and to which this chopping-board is prevent the ice from injuring the inside of the wagon, all as fully shown and described.

3. In combination with the permanent parts of a wagon, the detachable refrigerator attachment consisting of removable front and rear walls, an open drip-pan supported between the permanent parts of the wagon, a concave ice-grate resting thereon, and an ice-cage the sides of which converge toward their upper ends, one of them being connected to the icechalnber door, and, opening with it, gives access to the interior of the ice-cage simultaneously with the opening of the ice-chamber, all as fully shown and explained.

4. In combination with a refrigerator-wagon, a chopping-board attached thereto, resting when in use on the floor of the wagon, being hinged immediately in front and below the provision-chamber doors in such a manner as not to interfere with their opening when down and in use, but when raised after use will lie across and against the now closed doors, and, being held in such position by a catch on them, will prevent their voluntary opening, all as fully shown and explained.

In testimony whereof I affix my signature in presence of two witnesses.




Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US5919647 *Sep 5, 1997Jul 6, 1999Hamamatsu Photonics K.K.Methods and apparatuses for examining pathogen resistance of plant, for evaluating ability to impart pathogen resistance to plant, and for evaluating agricultural chemical
International ClassificationF25D3/06
Cooperative ClassificationF25D2303/081, F25D3/06
European ClassificationF25D3/06