US1121240A - Refrigerating apparatus for railway-cars. - Google Patents

Description

T. H. GARLAND.

ATUS FOR RAILWAY APPLICATION FILED 00T.31,1910.

CARS.

RBFRIGERATING APPAR Patented Dec. 15, 1914.

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T. H. GARLAND.

RBFRIGERATING APPARATUS FOR RAILWAY CARS. APPLICATION FILED 00131, 1910 1 l 2 1 ,240. Patented Dec. 15, 1914.

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THOIEAS HENRY GARLAND, OF' CHICAGO, ILLINOIS.

REFBIGERATING- APPARATUS FOR RAILWAY-CARS.

Specification of Letters Patent.

Patented Dec. 15,1914.

Application filed (lctober 31, 1910. Serial No. 589,927.

To all whom it may concern Be it known that I, THOMAS HENRY GAR- LAND, a resident of Chicago, in the county of Cook and State of Illinois, have invented certain new and useful Improvements in Refrigerating Apparatus for Railway-Cars, of which the following'is a full, clear, and precise specification.

My invention relates to cooling or refrigcrating apparatus for railway cars and may be considered as an improvement over the arrangements shown in my Patent No. 978,284, issued December 13, 1910, and among the important objects are to provide improved means for circulating cool air through the car and about the contents to be protected, and to provide improved means for protecting the cold water circulating piping against entrance of cinders, dirt, and solid particles liberated by the melting ice.

The various features of my invention are fully disclosed in the following specification together with the accompanying; drawings, in which drawings Figure 1 is an elevational view in longitudinal vertical section of a car, traveling toward the left, Fig. 2, is an enlarged view taken substantially from plane 2.2, Fig. 1, Fig. 3 is a sectional view taken from plane 33, Fig. 2, and Fig. at is. a sectional View taken from plane il-at, Fig. 2.

The car shown, particularly Fig. 1, has in general the same construction as in my patent referred to. The car comprises a supporting base or structure 1 supporting the main floor 2, the side and end walls 3 and 4 respectively and the roof 5, the sides, ends and roof walls being preferably double, as shown, to afford better heat insulation in the well known manner. Adjacent each end wall of the car is a bulk head or intermediate wall 6 also preferably of double construction, each bulk head with the adjacent car end wall forming a compartment 7 for receiving ice through hatchways 8 in the car roof adapted to be closed by hatch covers 9.

Near the bottom of each ice compartment is a grid frame 10 for supporting the ice, and below the grid frame is supported a well 11 for receiving the ice water. Arranged along the'car floor 2 is the piping 12, whose ends connect with the wells 11 to receive the ice water, the flow from the wells being con-.

of condensed steam when the piping is connected with steam supply to cause heatingof the car. Above the piping is arranged the lattice or grille work floor 19. Each end wall a at the upper end of the ice compartment has an opening 20 leading into the entrance end of a downchute 21, which terminates in the compartment between the car floor and the well 11. As shown, each opening 20 is controlled by adoor 22 adapted to seat in the outer edge of the opening 20. The outer end of each opening 20 is hooded over by an intake chute 23 secured to the exterior of the car end and extendingv vertically upwardly above the car roof, and having mounted at its entrance end a swinging hood 2 f pivoted on a rod 25 supported at the upper end of the chute. \Vhen the car is in motion the hoods at each end scoop up fresh air and deflect it downwardly through the intake chutes 23 and thence through openings 20, if the doors 22 are; open, the opening and closing of the door being controlled by levers 26.

The inner wall of each down chute 21 opposite the opening .20 has an opening 38 controlled by a door 39 preferab1y hinged at 2' along its upper edge and having the hasp 40 at its lower edge for engagement with staples 11 and 42 secured respectively adjacent the opening 38 and to the roof of the car, so that the door 39 may be locked in either closed or open position. Each bulk head 6 opposite the opening 38 in the adjacent down chute has an opening 43 connecting the ice compartment with the interior of the car near the top thereof, and

each bulk head near its lower end has an opening 44; for connecting the compartment between the grille floor 10 and wellll with the interior of the car near the bottom thereof.

Bananas are usually transported in refrigerator cars without the use of ice,'ample ventilation only being required. In addiice in the bunkers (under refrigeration) it tion to the ventilation obtained through the air chutes 21, it is desirable to obtain a circulation of air through the ice hatch openings 9 by leaving the hatch covers open.

in bulk, from blocking up theopening 44 and thus preventing the air from the ice compartment from passing down to the.

space under the grille floor 19, an apron 45 is provided, this apron being'hinged along the upper edge at y' to the bulk head above the opening 44. When the car is to be used for bananas without ice in the tanks, the apron 45 is dropped down against the grille floor 19. When the car is to be used with ice in the tanks, the apron is raised to he against the bulk head.

'When the car is loaded with bananas the outside air enters the forward end of the car through the hood and ice hatch openings,-

thence down through the chute and ice compartment to the space between the floors 2 and 19 of the car, along between the floors to the rear end, then up through thereai is desirable that the heat and gases given ofi by the fruit be withdrawn from the car until the fruit is cooled down to the proper temperature. To accomplish this, the exhaust ventilators 46 on the roof of the car are opened and'the doors 22 in the air intakes are opened. The hoods 24 at each end are turned to face the forward movement of the car. Air will be deflected by the hoods 24 down and through the open doors 22 into the chute 21, thence to the space between the fioors 2 and 19 of the car. Nearly all kinds of fruit are shipped in crates or boxes and are so loaded into cars that there will be spaces between the crates or boxes for the circulation of air. The air, therefore, that is taken in at each end of the car and conducted to the space between the floors 2 and 19, isforced and drawn by the exhaust ventilators upwardly throughthe grille fioor and between the crates or boxes of fruit, and discharged to the exterior through the exhaust ventilators on the roof of the car, carrying with it the heat and gases given off by the fruit. The ventilators and air intakes are kept open for the first 100 or 200 miles,

In order to keep the bananas, which are loaded until the fruit is sufficiently cooled, and then closed, the car making the remainder of the trip without air circulating through the car, l

A largepercentage of fruit is transported in refrigerator cars without using ice in the bunkers, the preservation of the fruit being accomplished by keeping a free circulation of fresh air passing through the car. 'When shipments are to'be so transported, the ventilators and air intakes are usually kept open through to destination, except when the temperature falls below the freezing point, when the openings are closed.

There are times when a greater supply of air is required to ass over the fruit through the opening 43 t an is supplied bythe ice hatches. The door 39 can then be opened and the air taken in through the hood, and opening 20 can be passed directly through the ice compartment, and opening 43 over the fruit. This door 39 also gives access to the door 22 in case repairs are required' In Figs. 2, 3, and 4, a desired arrangement is shown for the lower portion of the ice compartments. It has been found that some protection must be made against the clogging up of the water pipes by cinders or other foreign'matter entering through the hoods. The floor 47 below the ice grid 10'; is constructed to form a trough 48 extend' ing the full length "of the fioor for receiving the cinders and primarily the greater partof the water from the melting ice, the water and cinders being deflected into this trough by aprons 49 and 50 hung from the car end between the carsides and the chute21, and the apron 51 receiving from the aprons 49 and 50 and extending between the car sides 1n front of the chute 21. Below the apron 51 the floor is depressed to form the well 11,

into which well extends the entrance end 12 of the piping 12. The cinders and other 7 solld matters will remain in the trough 48 while the over-flow water from this trough Wlll flow over the ridge 52 between the trough and well and into the well, and when 7 i the water in the well reaches the properlevel I 1t Wlll flow into the entrance end 12 and into piping 12. As a further protection the well is covered by a screen 53.

Other changes and modifications areof course possible which would still come'with in the scope of my invention, and I do-not therefore desire to be limited to the precise constructions and arrangements shown, and I therefore claim the following:

In a railway car, the combination of an ice compartment, a grate 1n sald 1ce compartment for supportmg the lee therein, a floor below said grate, a trough in said floor extending full length of the ice compartment, over-lapping aprons below said grate for defleeting the water of the melted ice and cinders and other foreign particles into said my name this 27th day of October, DL, trough, a well formed in said floor adjacent 1910. said trough and below said aprons for receiving the water over-flowing from said THOMAS HENRY GARLAND trough, circulating piping having an inlet Witnesses: end in said well, and a screen over said Well. LULU M. ANDREW,

In witness whereof I hereunto subscribe D. J NoRMoYLE.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

Washington, D. O.

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