US2508507A - Ice handling machine - Google Patents

Description

y 3, 1950 E 5. FCWLER v 2,508,507

ICE HANDLING MACHINE Filed Nov. 20 1946 4 Sheets-Sheet l .Z'. ZZFawZer IN VEN TOR.

May 23, 1950 E. E. FOWLER ICE HANDLING MACHINE 4 Sheets-Sheet 2 Filed NOV. 20, 1946 EEITawZew 1N VEN TOR.

i lnlviih xiii QlW/ y 1950 E. E. FOWLER I 2,508,507

ICE HANDLING MACHINE Filed NOV. 20, 1946 4 Sheets-Sheet 4 Patented May 23, 1950 UNITED STATES PATENT OFFICE ICE' HANDLING MACHINE Everett E. Fowler; New York, N. Y.

Application November 20, 1946, SerialN 0. 711,091

material from one. level to another and is more particularly designed for use in the ice making industry.

One of the objects of the invention is the provision of a device that will elevate a package of considerable Weight and deposit the same at a higher level.

Another object is the. provision o a device that that may be detachably connected to a vehicle body, to be transported thereby and that will elevate a package from the truck body to a higher elevation and automatically discharge the package at the higher level.

Another object of the invention is the provision of a lifting device that may be attached to a motor truck body and that will elevate a cake of ice to the roof of a railroad car and automatically discharge the cake the roof of the car.

With these and other objects in view which will present themselves as the description proceeds the invention resides in the novel construction and arrangement of parts hereinafter described and more particularly pointed out in the appended claims, it being understood that minor changes may be made in the structure disclosed, within the scope of the claims, without departing from the spirit of the invention or sacrificing any of the advantages thereof.

In the drawing Fig. l is a view inside elevation, there being parts in section and parts broken away. The view shows the device in elevated and dumping position.

Fig. 2 is a view in rear elevation, parts being broken away and parts shown in section. The figure shows the parts in receiving position, the opposite position from that shown in Fig. 1.

Fig. 3 is a sectional view taken on line 3-3 of Fig. 2.

Fig. 4 is an enlarged sectional View, the cutting plane designated by line 44 of Fig. 2.

Fig. 5 is a perspective view of certain movable parts of the structure.

Fig. 6 is an enlarged sectional View taken on line i--6 of Fig. 2.

Referring to the drawings by characters of reference, the numeral I designates the floor of a motor vehicle body and at 2 is shown one of the side panels thereof.

A base 3 secured to the floor I has welded or otherwise secured thereto a pair of channel members vertically mounted with their open or channel sides facing, and these are connected at their top by a cross brace 5 mounted on the base -3 intor-mediate the channels 4, a cylinder 6 being- 6 Claims. (01. 2144.21)

2, erected in parallel relation with the channels 4.

The cylinder has mounted therein for vertical. sliding movement a piston 1 which has secured to its upper end a crosshead 8. From opposite sides of the orosshead extend bearing pins 9, each having mounted thereon a sprocket wheel 10. A chain i i is trained overeach sprocket.

A cross bar i2 secured at its. ends to the channels d, has a portion which embracesthe cylinder 6. thus; supporting the upper end of the cylinder. The bar i2. also fmtnishes. an anchorage at [3 for the fixed ends. of. the flexible elements H.

The opposite ends. of the chains. after training over the sprockets ii] are-secured at l4 to a frame denoted generally by the numeral The frame I5 includes parallel horizontal bars. 16 connected by vertical plates lit. The plates ll have rollers I8 mounted thereon, for rotaryv movement. The frame :5 also includes. verticalbars l9 secured to the, bars it by Welding or otherwise. Rightangle extensions. 20 project from thelower ends. of the barsv i9 and-provide support for hearin trusses. 2!. Each truss has mounted thereon a bearing 22.

A h pper 23 closed at one end and at. the bottom as shown at 24, has pintles 25 secured to its sides, the pintles being; seated in the bearings 2-2.

To; prevent sway of the hopper and its, associated parts: including the: crosshead- 8. and upper end of the piston l and to provide for..-anapproximate vertical movement of these parts during the liftin operation a frame 26 is; provided The frame comprises parallel channel bars 2;! :connected at the top by a cross bar 28. Each bar 2:! viewed in cross. section has a :fl'ange .29 .extended from the back ofthe channel parallel to and flush with one leg of the channel. Near the lower end-of each bar 21, a roller 30- is mounted for contact with one leg of the main frame channet-4, see Fig; 4, the fiange-28 riding against the other leg of the channel 4. Thus the lower end of the frame 2t is supported against lateral move-- ment. At. the upper end of the standards 4 are rollers 3i mounted for rotation in contact with one face of the flange. 29, the. opposite face riding against-one leg of the standard' l and by this structure the frame 2t is supported at the top of the fixed. frame against tipping or swayin duringpele ation of the loaded hopper.

The crosshead carries buffer-blocks 32' mounted for contact with :the cross :bar '28. of the frame 26- :during :upward movement of the crosshead so that the frame 26 is-carrie'd upwardly therewith 'der 43 thus'constitute interengaging and supporting function of frame 26 is carried on through out the cycle of operation.

For'operating the piston to elevated position, fluid under pressure is admitted from an accumulator (not shown) to a pipe line 33, to a valve housing 34, the valve of which is under the control of a hand lever 35, fluid under pressure being admitted to'the cylinder 6 under the piston 1 through a pipe line 35. Return fluid to the accumulator is through a return pipe line 31.

It will be observed by an inspection of Fig. that lateral pressure of the weight of the load carried on the offset arms 20 of the frame I5 is divided between the rollers l8 and the projecting ends of the bars [6, against the members 21.

These members in turn are supported by the main frame bars 4 as previously herein described.

To provide right line movement of the hopper in its upward movement to discharge position the following device is attached to the hopper.

A bracket 38 is secured to the hopper at a point intermediate the open end thereof and its pivotal connection 25 to the elevating structure. The bracket carries a swiveled block 39 through which is slidably mounted the reduced end of a bar 40. The reduced portion of the bar has secured to its end a retaining washer 4|. Interposed between the washer 4| and the block 39 and between the block 39 and the major portion ofthe bar 40 are buffer springs 42. A channel 44 in which bar 40 is slidably mounted is secured to the truck panel 2 and extended acros the upper open end of the channel is a, stop pin 45 of bar 40 located in the path of the hook 43 in its upward travel. A slot cut in the face of the channel 44 provides a shoulder or abutment 46, the purpose of which will presently appear.

In operation the truck equipped with the present invention is placed along side a refrigerator car to be iced, as shown in Fig. 1, a portion of the car being indicated at C. The hopper 25 is in the position shown in'Figs. 2 and 3 with a block of ice from the truck loaded therein. Fluid under pressure from the supply line 33, is admitted through the valve 34 and line 36 to the cylinder 6 under the piston 1. As the piston moves upwardly carrying the crosshead 8 and the attached sprockets I0, the hopper and its carrying frame I5 is moved upwardly twice the length of travel of the piston movement. This accumulation of movement will be quite evident from an inspection of thedrawings.

During upward movement of the hopper with its load, the hopper although mounted for swinging movement on the pintles 25, is guided vertically and prevented from swinging by reason of the bar 46 as shown in Fig. 3.

Immediately following initial upward movement of the :crosshead, the blocks 32 engage the cross bar 28 and move the frame 26 therewith thus affording the supportfor the loaded hopper hereinbefore described.

As the hopper nears the limit of its elevation the hook 43 on the bar 40 engages the cross pin 45 and tipping action of the hopper begins, further upward movement of the hopper causing the same to tilt to the discharge position shown in Fig. 1. It will be noted that as the hopper tilts and the angular relation of the bar 40 and its guide 44 increase, the lower end of the rod is forced over the shoulder 43 to retain the now overbalanced hopper in proper discharge position. The lower end of the rod and the shoulabutments that limit. tilting of. the hopper. I

Throughout the tilting operation of the hopper, sudden and undue strains on the bar 40 and its associated members are relieved by the buffer action of the springs 42.

Having thus described the invention, what is claimed is:

1. In a hoisting device, a stationary portion, a load support adapted for elevation and tilting relative thereto, and means extending between the load support and said portion adapted to prevent tilting and to cause tilting of the support, in succession, as the support is elevated, said means comprising a rigid member having one end pivotally connected to the support and the other end telescoping in said stationary portion.

2. In a hoisting device, a stationary portion, a load support adapted for elevation and tilting relative thereto, means extending between the load support and said portion adapted to prevent tilting and to cause tilting of the support, in succession, as the support is elevated, said means comprising a rigid member having one end pivotally connected to the support and the other end telescoping in the stationary portion, and abutments on said member and stationary portion respectively, adapted to interengage on tilting of the support to limit said tilting.

3. In a hoisting device, a stationary portion, a movable frame slidable thereon, a carriage slidable on themovable frame, a hopper tiltable on the carriage, and means extending between the hopper and stationary portion adapted to prevent tilting and to cause tilting of the hopper, in succession, as the hopper is elevated, said means comprising a member of rigid construction having one end pivotally connected to the hopper and the other end telescoping in said stationary portion.

4. In a hoisting device, a stationary portion, a movable frame slidable thereon, a carriage slidable on the movable frame, a hopper tiltalole on the carriage, means extending between the hopper and the stationary portion to prevent tilting and to cause tilting of the hopper, in succession, as the hopper is elevated, said means comprising a rigid member having one end pivotally connected to the hopper and the other end telescoping in the stationary portion, and abutments on said member and stationary portion respectively, adapted to interengage on tilting of the hopper to limit said tilting.

5. In a hoisting device, a stationary portion, a load support adapted for elevation and tilting relative thereto, said stationary portion having a channel extending parallel to the line of elevation of the load support, and means extending between the load support and said stationary portion adapted to prevent tilting and to cause tilting of the support in succession as the support is elevated, said means comprisin an elongated rigid bar telescoping in said channel and pivotally connected to said support at one end, said channel providing a guide. preventing tilting of the bar and support during initial elevation of said load support, said stationary portion and the other end of said bar including stops interengaging upon fullwithdrawal of the bar from the channel for tilting of the load support on 7 continued elevation thereof.

of the hopper therein during said initial vertical movement, said stationary portion having an elongated vertically disposed channel adjacent the hopper, an elongated bar telescoping in said channel and guided by the channel against movement out of a vertical position until said bar is withdrawn from the channel for substantially its entire length, a pivotal connection between the upper end of said bar and the discharge end of said hopper, and stops pivotally inter-engaging between the lower end of the bar and the upper end of said channel when the bar is Withdrawn from the channel for substantially its entire length, thus to cause said bar to exert pull upon the discharge end of the hopper during continued vertical movement of the hopper upwardly, for swinging the discharge end of the hopper through a vertical plane and discharge of the hopper contents.

EVERETT E. FOWLER.

6 REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS Number Name Date 1,048,325 Lee Dec. 24, 1912 1,628,389 Cochran May 10, 1927 1,776,414 Carlson Sept. 23, 1930 1,843,852 Troy Feb. 2, 1932 1,978,226 Rear Oct. 23, 1934 2,212,711 MacIsaac Aug. 27, 1940 2,281,004 Lehmann et a1. Apr. 28, 1942 2,381,729 Dunham et a1 Aug. 7, 1945 2,387,693 Trevino Oct. 23, 1945 2,399,632 Guerin May 7, 1946 2,413,661 Stokes Dec. 31, 1946

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