US1547963A

US1547963A - Hoist or pulling device

Info

Publication number: US1547963A
Application number: US3149A
Authority: US
Inventors: Seifert Waldin
Original assignee: Individual
Current assignee: Individual
Priority date: 1925-01-17
Filing date: 1925-01-17
Publication date: 1925-07-28
Anticipated expiration: 1942-07-28

Description

July 28, 1925.

W. SEIFERT E HOIST 0R PULLING DEVICE Filed Jan. 17. 1?25 INVENTOR. 9@ al! L "ATTORNEL dia'fe Se Patented July 28, 1925.

WALDI'N SEIFERT, or KEWANEE, ILLINOIS.

HOIST 0R PULLING DEVICE. Y

Application led January 17, 1925. Serial No. 3,149.

To aZZ whom t may concern:

Be it known that LVALDIN citizen of the United States, residing at Kewanee, in the county of Henry and State of Illino-is, have invented new and useful Improvements in Hoists or Pulling Devices,-

of which the following is a specification. 1

This invention relates to a novel and improved construction of hoist or pulling device of that type employing a -main shaft, to which power is applied, a counter-shaft in gear with the main shaft, and a drum or reel revolub-le on the main shaft and in gear` with the-counter-shaft, the object of my invention being to provide a device' of this character, fin may be driven at low` or high speeds by power applied to either of the said shafts at will, and which embodies a construction in which both sides of the drum are in gear with the counter-shaft, thereby eliminating all side strains 'and twisting stresses on the drum and lavoiding liability of sudden shocks snapping off gear teeth and permitting the load `to fall.

A further object of the invention is to provide a device of the character described which is adapted for either portable or stationary use and for general purposes wherever the use of a simple, compact andpowerful type of hoist or pulling device is desired.

The invention consists of the features of construction, combination and arrangement of parts, hereinafter fully described and claimed, reference being had to the accompanying drawing, in which Figure 1 is a top lplan view of a hoist or pulling device embodying 'my invention.

Figure 2 is a horizontal transverse section through the same.

Figure 3 is a vertical longitudinal section on the line 3-3 of Figure 1.

In carrying my invention into practiceI provide a hoist or pulling device compris` ing a suitable frame'shown in the present instance as made up of a pair of parallel side plates or frame pieces 1 connected at the opposite ends thereof by cross bolts 2 to one of which bolts may be applied a clevis or attachment 3 to which may be secured a rope or cable L1, for connecting the hoist or pulling device to any suitable support or anchor Vfor holding the frame thereof in proper position during a hoisting or pulling action.

Journaled in the frame pieces 1 are main compact type of which the d ruin Y and counter-shafts 5 and 6 respectively, and Snirnnr, .a

to the shaft 5 is keyed a spur pinion 7 meshing with a spur gear wheel 8 keyed to the shaft 6, whereby, when power is applied to revolve the shaft 5, the shaft 6 `will be revolved therewith.

Mounted on the shaft 5 is a winding drum or reel comprising a hub 9 loose on said shaft and a pair of side disks 10 fixed to the` hub to revolve therewith, to the said hub of which drum one end of a draft rope or cable 11 may be secured, to adapt the rope or cable.

to wind thereon or to be unwound therefrom. In accordance with my Yinvention, the side disks 10 are both made inthe form of` gear elements, having spur gear teeth 12 ontheir peripheries for meshing engagement with pinions 13 fixed l to the counter-shaft 6, wherebyv equal power and motion will be transmitted to both sides of the drum from the counter-shaft in theV operation of the device. n

1 In practice, power may be applied to either shaft 5 or 6 for the purpose of driving the Vdrum at low or high speed. In the'construction shown one end of each shaft is extendedl v' and provided with anv angular portion 14 for the reception of a crank handle 15 whereby either of said shafts may be driven, but, in the various uses of the device, power means of any suitable sort may be applied for Adriving either shaft and, in the use of `power means for the purpose, a brake device of any suitable sort may beemployed on either or both shafts for governing the same in winding and unwinding actions and l,holding the drum fixed in any predetermined position. I have not deemed it necessary to illustrate the use of power applying or braking means, as such are well known and are not necessary to a proper disclosure of the invention.

It will be observed that by the structure described the drum may be driven at low speed and with high power by the application of power to the main shaft 5, whereby through the vgearing disclosed the countershaft 6 will be driven and in turn will impart driving motion to the winding drum. Also it will be evident that the drum may be driven at high speed and lower power, for comparatively light hauling or pulling actions, by power transmitted to the countershaft whereby direct motion will be transmitted through the pinions thereon to the gear elements of the drum for driving the latter. Provision is thusl made for the use of the device for hoisting or pulling comparatively heavy loads at low speed; or for hoisting or pulling lighter loads at a `relatively higher speed, without in any manner changing the structural features of the defice, the advantages o-f which will be maniest.

The invention provides a hoist or pulling device which may be of any desired size and power for portable or stationary use and capable of being power driven or hand driven for various purposes. It may bel used for various purposes and in different ways for general industrial purposes, for the use of farmers and others in hoisting or pulling operations, loading and unloading operations, as an automobile extractor, as a portable crane or crane elementon tractors or automobile wrecking cars, and for various other uses where the employment of a compact and powerful type of `hoist of any size will be found of advantage. It will, of course, be understood that any ratio of gearing may be employed according to the size and capacity of the device and the work for which it is designed to be performed. An important feature of my invention resides in the fact that the drum is in gear at both sides with the counter-shaft, thereby eliminating all side strains and twisting strains on the drum, making the power evenly applied and reducing friction and making the device easier of operation. A further advantage 'is that by having the drum in gear at both sides with the counter-shaft the liability of snapping off of gear teeth from sudden shocks, and permitting the load to fall,

is avoided or reduced to the minimum.

Having thus fully described my invention, I claim:

1. A hoist or pulling device comprising a frame, parallel main and counter-shafts journaled in said frame, means whereby power may be applied to either of said shafts, a spur pinion on the main shaft, a spur gear on the counter-shaft meshing with said pinion, a pair of spur pinions on the counter-shaft, and a drum loosely mounted on the main shaft and including side disks in the form of gears having spur teeth meshing with the pinions on the counter-shaft.

2. A hoist or pulling device comprising a frame, parallel main and counter-shafts journaled in the frame, each of said shafts having an extended end adapted for the application of power thereto, whereby power may be applied to either shaft, a spur pinion on the main shaft, a spur gear on the counter-shaft meshing with said pinion, a pair of spur pinions on the counter-shaft, and a drum comprising a hub loosely mounted on the main shaft and side disks carried by the drum, each of said disks having its peripheral portion arovided with spur teeth, the spur teeth of t e respective disks meshing with the respective pinions on the counter-shaft.

In testimony whereof I affix my signature.

WALDIN SIFERT.