US1577283A

US1577283A - Swivel hook

Info

Publication number: US1577283A
Application number: US26157A
Authority: US
Inventors: Mitchell Americus
Original assignee: Individual
Current assignee: Individual
Priority date: 1925-04-27
Filing date: 1925-04-27
Publication date: 1926-03-16
Anticipated expiration: 1943-03-16

Description

March 16 1926,

-. 1,577,283 A. vMlTctHELl.

` swIvEL HOOK Filed April 2'7, 1925 l di Y /0 l, l ',"f l A/77 ""ll"::- I

` IIIIIIIIIII Patented Mar. 16, 1926.

UNITED STATES vPix'ifElv'r oFrIcE.

SWIVEL HOOK.

Application 'led April 27, 1925. Serial No. 26,157.

To all cli/1,0m 'it may concer/n.:

Be it known that I, AMERIoUs MITCHELL, a citizen of the United States, residing at Beaver Falls, in the county of Beaver and State of Pennsylvania, have invented certain new and useful Improvements in a Swivel Hook, of which the following is a specification.

This invention relates to a swivel hook especially constructed for use in connection with a hoistingand elevating crane.

rFhe object in devising this improved hook is to permit the crane operator when in the cab to'manipulate the hook in a manner to facilitate handling of the load suspended therefrom.

More specifically, the novelty of the present device resides in the provision of a swivelly mounted hook and intermeshing gears,

one being carried by the hook, and one being mounted upon a motor driven shaft under the control of the operator, whereby to permit the operator to lift the load to the desired elevation and to turn the same in any dling in loading and unloading the same.

An important feature of the invention is to provide a structure which can be associated with a conventional crane structure without necessitating undue alteration of existing parts.

The features and advantages derived from the novel construction and arrangement of parts employed in carrying the inventive conception into effect will become apparent from the following description and drawing.

In the accompanying drawing forming al part of this application and in which like numerals are employed to designate like parts throughout the saine:

Figure 1 is afront elevation of a device constructed in accordance with the present invention, and f Y Figure 2 is an end elevation thereof looking in the direction from right to left.

Referring to the drawings in detail, it will be seen that the numeral 1 designates an axle upon which a plurality of sheaves 2 are mounted for rotation, these sheaves customary. Suppported in any appropriate manner from this axle is a substantially 1-shaped frame 4.: which in the presentindesired direction, to greatly facilitate han- ,being rotated by cablesA or the like 3 as is` stance comprises a top bar 5 and vertical end bars 6. A bolt 7 may pass through these to assist in maintaining them in rigid relation. Fastened in any suitable way on the right hand side of the frame is a mounting plate 8 for an electric motor 9 and a centrifugal speed governor housing 10. The shaft of the govqrnor is connected to the shaft of the motor through the medium of an appropriate coupling 11. The speed controlled shaft extending on the other side of the governor housing is equipped with a pinion 12.

Bolted or otherwise secured between the lower ends of the vertical side bars 6 is a block 13 which constitutes a cross head upon which a hook 14 is swivelly mounted. The shank ofthe hook'is equipped with a relatively large gear 15 in mesh with the pinion 12. Appropriately"mounted upon the frame is a counter-balancing weight 1G which serves to counter-balance the motor and part on the opposite side of the structure to maintain the head in an approximate horizontal plane at all times. An appropriate U-shaped guard 17 is attached at its 'ends to the weight and housing 10 and cooperates with the gearing.

From the foregoing description it will be seen that the operator located in thecab with which conventional cranes are usually provided, may actuate the electric motor to drive the swiveled hook 14 through the medium of the gearing so that the hook may be turned to any position and stopped. In

this way the load which is suspended from the hook can be more easily handled.

It is thought that the description taken in connection with the drawing will enable persons skilled in the art to which the invention relates to obtain a clear understanding of the same. Therefore, a more lengthy description is thought unnecessary.

Although the preferred embodiment of the invention is shown and described, it is to be understood that minor changes coming' within the lield of invention claimed may be resorted to if desired.

Having thus described the invention, what I claim as new is In a structure of the class described, a supporting frame, a motor carried by said frame, aaspeed governor carried by said,

.fi-:11110, smid spoed governor being coupled with tho sha ft oi smid motor, said speed governor `including' n shaft, L pinion Carried by Suid hnrft, :i cross head carried by said frame, :i hook swiveily mounted upon said oioss hond, n geni' carried by the shank of Suid hook, Said pinion meshing.; with said goal', and n conniet-hallan@ng Tight mnrioil by Suid fizlnle and looni'od on n Sido opposite,

to that upon which the nioioi' is disposed. 10

In rostilnony whereof I :ifix my Signaa AM IGRC U S MITCHELL.