US2198931A

US2198931A - Take-down attachment for precooling fans

Info

Publication number: US2198931A
Application number: US296092A
Authority: US
Inventors: August R Carstensen; Harry W Davis
Original assignee: Crystal Ice and Cold Storage Co
Current assignee: Crystal Ice and Cold Storage Co
Priority date: 1939-09-22
Filing date: 1939-09-22
Publication date: 1940-04-30
Anticipated expiration: 1957-04-30

Description

April 1940. A. R. CARSTENSEN ET AL 2,193,931

TAKE-DOWN ATTACHMENT FOR PRECOOLING FANS Filed Sept. 22, 1939 2 12 9 f1 15 14 1s A 1 I I I V INVENTORS Y A.R. Carslensen E H. WDa vz's Patented Apr. 30, 1940 V UNITED. STATES PATENT o-F-FicE TAKE-DOWN ATTACHIVIENT FOR PRECOOLING FANS August R. Carstensen and Barry W.

Davis,

Sacramento, Calif., assignors to Crystal Ice and Cold Storage Company, Sacramento, Calif.

Application September 22, 1939, SerialNo. 296,092

8 Claims. (01. 62-24) This invention relates to the precooling of refrigeration cars by means of portable and removable electric fan units such as that shown for instance in Patent No. 2,099,815, granted November 23, 1937, to J. R. Lewis et al., as well as various others, and particularly deals with a means for facilitating the removal of such units from the car after the precooling operation is completed.

The principal object of our invention is to provide such a means which not only avoids the necessity of crawling over the load to disengage and remove the fan units from their supported operative position adjacent the ice bunkers of the car, but'enables such removal to be effectedv tional outline of a refrigerator car showing a precooling fan unit as mounted inoperative position and provided with our improved take-out equipment. s

, Figure 2 is a similar view showing the fan unit as being taken out.

Figure *3 is an end view of the fan unit, de-

tached.

Referring now more particularly to the characters of reference on the drawing, the fan unit used with our take-out equipment comprises essentially a cylindrical housing containing the motor driven fan 2 and having at one'end a canvas hood 3 adapted to surround the top open-' ing 4 of an ice bunker 5 of the refrigerator car 6 and to be tacked about said opening.

An eye! is mountedon and projects upwardly from the housing at a'point in its length such that the weight of the unit is substantially balnally extending relatively wide shoe or runner l0,

anced. When the fan unit is in operating position, this eye is engaged with an L-shaped hook 8 which depends from and is permanently mounted in the ceiling 9 of the car and facing away from the adjacent ice bunker.

' The housing is rigidly mounted on a longitudiand this shoe, if desired, may be provided with longitudinally spaced transverse rollers I I underneath. J

A pull cable l2 is connected to the housing at the top, preferably atthe eye 1 as shown in Fig. 3,

and extends through a ceiling mounted eye I 3 .-6

disposed'relatively close to but. ahead of hook 8. This cable'initially extends to the door end of the adjacent portion of the load L in the car as shown in Fig. 1.

Another pull cable l4 extends from a similar 10 point in the car to a connection with the adjacent end of the shoe III, the portion of the cable adjacent the shoe being preferably branched as shown The fan unit is mounted in place before the car is loaded, the cable l2 being threaded through eye l3 after the unit is hung, and both. cables being then caught and held out of the way of loading operations.

When it is desired to take out the fan unit after pr'ecooling is completed, a runway or plank unit I6 (which may be sectional), is laid on the loaddirectly under the fan unit. The cable I3 is then pulled sufficiently to disengage the eye 1 from book 8, the hood 3 readily pulling loose from the bunker wall, since only light tacking is employed. The fan unit then drops onto and becomes supported by the runway. If this drop is small, the shock is insufficient to cause any damage either to the load or fan unit. If the load is shallow and the drop consequently great, a grip on the cable is retained so that the weight of the unit may be supported by the portion of the cable depending from the eye l3, and the cable is then payed out so as'to lower the unit gently onto the runway.

Once the unit is on the runway, the cable I 2 is released and the cable It is pulled, drawing the unit toward the center of the car where it may be picked up and removed through the 0 door. While the unit is thus moving, the cable I2 runs out of itself from the eye I3, as indicated in Fig. 2.

From the foregoing description itwill be readily seen thatwe have produced such a device as substantially fulfills the objects of the invention as set forth herein.

' While this specification sets forth in detail the present and'preferred construction of the device, still in practice such deviations from such detail may be resorted to as do not form a departure from the-spirit of the invention, as defined by the appended claims.

Having thus described our invention, what we claim as new and useful and desire to secureby Letters Patent is:

1. Mounting and withdrawal means fora portable precooling fan' unit for use in cooperative I association with an end ice bunker of a refrigerator car, said unit comprising a housing; said means comprising an eye on top of the housing, a hook for engagement with the eye mounted on and depending from the ceiling of the car and facing away from the bunker, said hook being positioned so thatwhen the eye is engaged therewith, the unit is in operative position relative to the bunker, means operable from adjacent the center or the car for pulling the eye ofi the'hook and a cable applied to the unit to then pull the same toward the center of the car.

2. A device as in claim 1, with a runway to support the unit when released from the hook and adapted to be placed on the load in the 90 car and to extend from under the unit when suspended to adjacent the car door end of the load. v

=3. A device as in claim 1, with a runway to support theunit when released from the hook l8 and adapted to be placed on the load in the car and to extend from under the unit when sus-' pended to adjacent the car door end of the load and rollers on the unit to ride on the runway 'when the unit is lowered Irom engagement with 80 the hook.

4. Mounting and withdrawal means for a portable precooling fan unit for use in cooperative association with an end ice bunker of a refrigerator car; said means comprising an eye on 35 top of the unit; a hook for engagement with the eye mounted on and depending from the ceiling of the car and facing away from the bunker, said hook being positioned so that when the eye is aged therewith, the unit is inoperative 40 position relative to the bunker, a cable engaging member mounted on and depending from the 1 ceiling adjacent the hook but between said hook and the center of the car, a cable secured at one end on the top or the unit and extending 45 thence through the ceiling mounted eye to an initial termination 'adjacent the center of the car and another cable applied to the unit and also extending to an initial termination adjacent the center of the car.

5. Mounting and withdrawal means for a port- 'able precooling fan unit for use in cooperative association with an end ice bunker of a retrieerator car; said means comprising an eye on top or the unit, a hook for engagement with the eye mounted on and depending from the ceiling of the car and facing away from the bunker, said hook being positioned so that when the 8 eye is engaged therewith,'the unit ls'ln opera tive position relative to the bunker, a cable engag-, ing member mounted on and depending from the ceiling adjacent the hook but between said hook and the center-of the car, a cable secured at one 10 end on the top of the unit and extending thence through the ceiling mounted eye to an initial termination adjacent the center of the car, a shoe rigid with and extending lengthwise of and under the unit and another cable connected to'the 15 end of the unit furthest from the bunker and extending to an initial termination adjacent the center of the car. 7 a

6. Mounting and withdrawal means for a portable precooling fan unit for use in cooperative association with an end ice bunker of a refrigerator car; said'means comprising disengageable cooperating elements on the unit and the ceiling of the car to releasably support the unit suspended from the ceiling in cooperative relation to the bunker, means operable from adjacent the center of the car to disengage the cooperating elements and allow the unit to drop and means applied to the unit to then pull the same toward the center of the car.

7. Mounting and withdrawal means for a portable precooling fan unit for use in cooperative association with an end'lce bunker of a refrigerator car; said means comprising disengageable cooperating elements on the unit and the ceiling as of the car to releasably support the unit suspended from the ceiling in cooperative relationto the bunker, means operable from adjacent the center of the car to disengage the cooperat ing elements and to then control the lowering.