US1413039A - Lifting device - Google Patents

Description

G. E. LEE.

LiFTlNG DEVICE.

APPLICATION FILED MAR. 19. 1921.

Patented Apr. 18, 1922.-

L. w M

ATENT or GILBERT E. LEE, on MORRIS, rainnnsore.

merino DEVICE.

Specification of Letters Patent.

Patented Apr. is, 1922.

Application filed March 19, 1921; Serial No. 453,702.

To all whom it may concern:

Be it knownthat I, GILBERT E. LEE, a citizen of the United States, .residin at Morris, in the county of Stevens'an'd tate of Minnesota, have invented certain new and useful Improvements iii-Lifting Devices, of which the following is a specification,

The object of this invention is to provide a portable lifting device which may be easily shifted from place to place and will remain at rest when the hoisting members are in operation. The device is intended more'particularlyfor use in lifting wagon beds or hay racks onto or from running gear, but is capable of use in other Ways.

The invention is illustrated in the accomianying drawings and will. be hereinafter fully set forth. I

In the drawings Figure. 1 is a perspective ,view of a device embodying the invention;

Fig. 2 is an enlarged detail sectional view of the upper end of the post or standard;

Fig. 3 is a detail longitudinal section through the winding drum and its operating mechanism; V

Fig. 4 is an enlarged end elevation of the same. I

In carrying out the invention, I employ a truck body which may be a single. integral casting and presents a base plate 1 having depending feet 2 at one end and provided on its upp er side at its opposite end with a socket 3. Axle projections 4 are formed on the sides of the base at the end carrying the socket 3 and extending longitudinally of the base from the socket to the opposite end thereof is an upstanding rib 5. Rollers or wheels 6 are rotatably mounted upon the axles 4 and are retained on the axles by cotter pins '7 or'other devices. Secured in the socket 3, in any preferred manner, as by screw threads, is a hollow post or standard 8 and in the upper end ofthe said post or.

standard is loosely fitted a turntable consisting of a plate 9 having a stud 10 depending from its under side to fit within the post and spaced lugs 11 rising from its upper side. A guide pulley 12 is rotatably fitted between and supported by the lugs 11, as clearly shown. Upon the side of the post at an intermediate point of the height thereof, l secure a bracket 13 having its intermediate portion projected from the post, as shown, and provided in its upper end with a notch 1 through which the cable 15 passes.

The cable 15 is trained over the pulley 12 and is equipped at its lower end with a forked hook or other object-engaging member 16 so that it may be readily fitted to the endoi. the hay rack or the wagon bed to support the same. portion of the bracket 13 and in the adjacent portion of the post are trunnions 1'7 on the ends of a drum 18, the end of the cable 15 Fitted in the intermediate being secured to and adapted to wind upon 7 the said drum. Fixed to one end of the drum is a gear or toothed disk 19 engaged by a pawl 20 mounted upon the post below the drum, as shown, and fixed to the opposite end of the drum is a similar disk or gear 21 which is actuated by a pinion or star wheel 22 on the operating shaft 23 whichis journaled in the bracket 13 and in the adjacent portion of the post. One end of the said shaft projects through the bracket and is equipped with a handle 24 of any preferred form. .Near the. opposite end of the shaft is 'a'star wheel 27 which is similar in all respects to the pinion 22 and is arranged to actuate the gear 19. Upon reference to Fig. 3, it will be noted that the pinions 22 and 27 may be integral with the shaft 23 and also that the toothed disks 19 and 21 may be cast integral with the drum. I The pinions 22 and 27 have three teeth or driving lugs each, the lugs or teeth being staggered. That is to say, each lug or tooth on one disk is alined with a space between two lugs or. teeth on the other disk. Each gear, 19, 21, has nine teeth, each tooth on one gear being alined with a space between two. teeth on the other gear. I thus provide a very simple, strong and efficient winding gear. It will be readily understood that manipulation of the handle to rotate the shaft 23 will effect r0- tation of the drum through the engagement of the pinions 22 and 27 with the gears 21 and 19 respectively and the cable 15 will be thereby wound upon or unwound from the drum,

Secured rigidly against one side of the rib 5 is one end of a tongue 25 which extends upwardly from the. said rib and is equipped at'its free end with a cross bar or handle 26. l/Vhen the device is at rest, the feet 2 will bear directly upon the floor or the ground and will thereby prevent movement of the truck. While the device is thus stationary, the hook or its equivalent 16 may be engaged with one end of the wagon bed or the hay rack and the handle 24 manipulated so as to wind the cable. The end of the rack or the wagon bed will be thereby lifted from the running gear and while it is thus supported, the truck may be moved from the running gear so as to draw the wagon bed or the rack therefrom. is entirely removed from the running gear, the travel of the truck is arrested and the pawl 20 disengaged from the gear 19 so that the engaged end of the rack or bed may be lowered to the ground or the floor of the barn by manipulation of the handle 24;. l vhen the one end has been thus lowered to the ground or the floor, the truck is shifted so as to repeat the operation at the opposite end of the bed or rack. The cross bar handle 26 permits thedevice to be easily grasped and manipulated so as to be shifted from point to point may be needed and the pulley 12 is carried by the upper end of the post or standard 8 in such manner that r it may swivel "freely thereon so that the hook '16 or its equivalen may be readily engaged with the wagon bed or other object. The device is exceedingly compact and simple in the arrangement and construction of its parts. It may be easily operated by one I man and may be advantageously employed to remove wagon beds'or hay racks fromthe running gear or to replace the same on running gear or to stretch fence wires or to accomplish other similar results. hen the machine is to he used to stretch "fence wires,

the column 8 is bound to a post or other fixed Before the rack or bed the invention, what at its opposite end and a longitudinal rib on its upper side extending from the socket to the opposite'end ot the plate, rolling supports mounted upon the sides of the plate at the end thereof having the socket, a tongue secured rigidly to the said rib and extending upwardly therefrom, a post fitted in and rising from thesocket, and hoisting mechanism carried by the post.

2. A lifting device comprising a post, a bracket secured on one side of the post, a winding drum rotatably mounted in and between the post and the bracket, toothed disks on the ends of the drum with their teeth staggered, a cable secured to and adapted to wind on the drum, a pawl mounted on the post below the drum and engaging the ad j acent toothed'disk, a driving shaft arranged above the drum and rotatably mounted in and between the post and the bracket, and pinionson said shaft near the ends thereof having their teeth staggered and meshing with the respectively adjacent disks.

In testimony whereof I afiix my signature.

GILBERT E. LEE. n 9.

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