Патент USA US2113493код для вставки
Apri? 5, 1938. 2,113,493 C. PHILLIPS METHOD AND APPARATUS FOR REFRIGERATING FREIGHT CARS Filed June 21, 1932 Vigl [I'l ,1,,1, 1/ 4 I.:.\ a’.F1 .27. 1. 111, 1,,1.1,1, 111 ,1,1,1 , 1I 1,, 6 -E éI/AI INVENTOR. CHAR LE5 PHIL L/Ps BY ?é. W ATTORNEY Patented Apr. 5, 1938 2,113,493 UNITED _ STATES PATENT ' OFFICE 2,113,493 METHOD AND APPARATUS FOR BET-‘matin- _ V ATING FREIGHT carts - Charles Phillips, Salinas, Calif. Application June 21, 1932, Serial No. 618,438 9 Claims. (Cl. 62-1) This invention relates to an improved method and apparatus for refrigerating freight cars._ It has heretofore been the custom in packing certain perishable commodities such as fresh . 5 vegetables or ?sh in freight cars prior to ship ment, to manually distribute quantities of crushed ice over the commodities after they had been properly placed in the cars. This method of re frigeration has proven to be comparatively un ll) satisfactory and expensive, principally because the crushed ice when manually placed over the crates containing the commodities is not ordi narily distributed so as to entirely cover and seal the openings normally present between the crates. ' Unless the perishable commodities. are properly covered with the crushed ice and thereby sealed from the air circulating or present in the freight car, there is apt to be a resulting spoilage of the ' commodities. My invention contemplates the 20 use of novel apparatus which is capable of mechanically distributing quantities of crushed ice under pressure over the perishable commodi ties packed in crates within freight cars. By mechanically distributing the crushed ice under pressure over the crated commodities, the open ings normally present between the crates are sealed, thereby preventing the surrounding warm air from contacting with the conmiodities. Through the mechanical distribution of the 30 crushed ice, in accordance with my invention, rather than by the variable and unsatisfactory manual methods now commonly used, an even preferred by me, it being understood that various ' modifications may be made without departing from the spirit thereof. - Fig. 1 is agdiagrammatic view of a refrlgeratin unit, illustrating the relative positions of the c". freight cars to be refrigerated, the movable ice blower or distributor, and the ice supplying means with which the distributor contacts; _ I \ Fig. 2 is an end view of the apparatus illustrated in Fig. 1, showing the ice supplying structure in vertical cross-section; and Fig. 3 is an end view of another type of struc ture for mounting the movable ice distributor or blower, showing parts of the apparatus in verti cal cross-section. . 15 Referring to the drawing, the numeral I desig nates a building structure which ordinarily con stitutes a supply base for the ice utilized in re frigerating the freight cars 2 containing the perishable commodities to be shipped from one 20 point to another. The building structure I is ordinarily provided with a. forwardly extending platform 3 which is positioned adjacent a rail road track over which the freight cars are op erated. Suitably supported in an elevated posi tion at the front side of the building structure, is an ice conveyor proximately the structure. One municates with or trough 4 which extends ap full length of the said building . end of the ice conveyor com a crusher 5’ which serves to 3o break large pieces of ice into sizes capable of being readily handled by the apparatus employed layer of ?rmly packed ice may be readily placed over the commodities packed in anumber of 35 ‘freight cars. It is of considerable importance when packing certain kinds of fresh vegetables in freight cars prior to shipment, that the crushed ice be applied without undue delay, otherwise the surrounding warm air is apt to affect the use. The crushed ice emerging from the crusher 5’ is ordinarily actuated by the force of gravity 40 condition of the vegetables before the cars are or other suitable means through the conveyor 4 40 properly refrigerated. When a number of freight cars containing perishable vegetables are to be refrigerated at the same time, it is highly im portant that no time be lost in placing the crushed 45 ice within the cars. By means of the novel ap paratus comprising my invention, it is possible tov mechanically refrigerate a number of freight cars within a much shorter period of time than is now " possible with the methods now commonly em 50 ployed. ' ‘ The principal object of my invention, therefore, in distributing the same over the perishable com modities packed within the freight cars. The conveyor 4 is provided at certain points on its 3.3 underneath side, with openings 5 which may be closed by suitable covers or doors when not‘ in to one of the openings 5, from whence it falls into a chute 6. The chute 6 is ordinarily mounted with its open top end located directly beneath the particular opening 5 through which the crushed ice in the conveyor 4 is to proceed. The chute may be moved by hand from one of the openings 5 to‘ another and any suitable means may be employed to support and hold the same in a proper operating position. Movably mounted on the platform 3-, (Figs. 1 and 2)v is a blower 'l 50 is to provide a. novel and improved method and which embodies any type of construction now well known in the art. ‘The blower is preferably apparatus for refrigerating freight cars. In the accompanying drawing I have shown my improved apparatus in a form which is .now mounted on wheels so as to permit the same to be conveniently moved from a point opposite the door of one freight car to a. point Opposite the - _ 2,: races door of another freight car. The blower em for mechanically discharging quantities of bodies a hopper 8 for receiving quantities of. crushed ice under pressure, means for delivering crushed ice delivered by the chute 0, and also ~crushed ice from one of the discharge openings suitable electrically operated mechanism for blowing or otherwise discharging the crushed ice under pressure through a‘ ?exible tube 8. The tube 9 is suitably connected at one end. to the blower 1 and is of sumcient size to convey the crushed ice discharged from the blower to the 10 particular freight car to be refrigerated. As shown in Fig. 3 the blower ‘I may be mounted in an elevated position on suitable tracks III which are supported at the front side of the building structure I. When the blower is thus mounted in an elevated position above the plat form 3, the freight cars may be made accessible for loading purposes without any particular in terference on account of the refrigerating mecha nism. ‘ In ordinary practice the freight cars 2 are in the conveyor to the blower means, and means connected to the outlet of said blower means for controlling the discharge of the ice expelled from the latter. 3. Apparatus of the kind described comprising a mechanically operated blower movably mounted on wheels, conveying means for feeding crushed 10 ice to the blower, the said conveying means hav ing a plurality of spaced openings through which the crushed ice may be fed to the blower, and a ?exible tube connected to the outlet of said blower through which crushed ice may be dis charged under pressure. ' 4. Apparatus of the kind described comprising in combination, a blower for directing quantities of crushed ice under pressure into an enclosure » packed with crates of vegetables or other com to be refrigerated, and means for automatically 20 feeding crushed ice to the blower, which said modities to the points indicated by the dotted means includes an elevated crushed ice conveyor horizontal lines. After the cars are positioned on the railroad tracks with their doors located having a plurality of spaced discharge openings along its length, and tubular means detachably connecting one of the discharge openings in the 25 '25 approximately opposite the openings 5 in the crushed ice conveyor 4, the blower ‘I is moved to a convenient point where'contact can be made between the chute 6 and the hopper. 8. >The' operating position of the blower is ordinarily one 30 which is adjacent the door of the particular freight car to be refrigerated. After the chute 6 and the blower 'l are in their proper operating positions, the particular opening 5 with which conveyor with the blower. . 5. The method of icing products in a container and of cooling unoccupied space in said container which comprises conveying ice particles in a con-1. fined, ?owing air stream into the space to be 30 iced, and releasing said stream’ to deposit said ice ‘particles in said space and to permit said released stream to circulate to cool unoccupied the chute is in communication, is opened so‘ as to permit the discharge of the crushed ice into space in said container. the said chute. As the blower receives and dis charges the crushed ice, the ?exible tube 9 is which comprises creating a flowing stream of ice handled by an operator so the crushed ice is properly distributed over the crates of commodi .40 ties located in the freight car. The force with which the crushed ice strikes the packed com modities after it leaves the discharge end of the tube 9, causes the openings located between and in the crates to be completely ?lled with crushed ice. The manipulation of the tube 9 while ‘the blower is in operation, permits the 'operator to apply an even and uniform layer of crushed ice over the tops of the packed crates. The‘ pieces of crushed ice being fairly smalLin size, cause 50 the layer to be firm and compact thereby sealing the commodities from the air located in the top of the freight car. By moving the apparatus from one point to ' 6. The method of icing products in a container 35 particles and air, con?ning said stream within a ?exible conduit and conveying said stream into said container through said conduit, and con trolling the discharge end of said conduit in such 40 a manner as to deposit the ice particles upon the products to be iced. ‘ ' 7. A method of preserving commodities for transit in a vehicle comprising the steps of pack ing the commodities in said vehicle in such a 45 manner as to leave a space between the top sur face of said commodities and the inside surface of the roof of said vehicle, conveying a ?owing stream of crushed ice and air into said vehicle through a ?exible conduit, and discharging said stream from said conduit under pressure in such so a manner as to cover said commodities with a coating of ice. cessively refrigerated in a comparatively short 8. A method of preserving commodities for transit in a vehicle comprising the steps of plac length of time.. ing the commodities in containers, packing the another, a number of freight cars may be suc ' It‘ is apparent to those skilled in the aitthat _ containers in said vehicle in‘ such a manner as . the apparatus shown‘and'described herein may to leave spaces between and around said con be embodied in other forms and constructions, so for this and other apparent reasons, I desirev my invention included broadly within the ap pended claims rather than con?ned to the exact disclosures herein made. Having described my invention what I claim is: 1. Apparatus of the kind described comprising an ice crusher, a conveyor into which the crushed ice from the crusher is fed, a mechanically oper ated blower, means interposed between the blow er and the conveyor for directing the crushed ice from the conveyor to the blower, and a ?exible tube connected to the blower for controlling the discharge of crushed ice from the blower. ‘2. Apparatus of the kind described comprising tainers, and then discharging a ?owing stream of crushed ice into said vehicle and against said 00 containers under such pressure as to cover said containers with a ?rm, compact coating of ice. 9. Apparatus for icing commodities when packed for transit in a vehicle comprising a ?ex ible conduit through which crushed ice may be 65 delivered to any desired point of said vehicle,'an ice blower having an outlet to which said con-~ duit is connected and being capable of discharg ing therefrom a stream of‘ air and crushed ice of su?lcient kinetic energy to pass through said 70 conduit and issue therefrom as _ a stream of substantial velocity, and means. for supplying crushed ice to said blower. a crushed ice conveyor having a plurality of. spaced discharge openings therein, blower means CHARLES PHILLIPS.