US2280396A

US2280396A - Human hoist

Info

Publication number: US2280396A
Application number: US375220A
Authority: US
Inventors: Cecil R Gentry
Original assignee: Individual
Current assignee: Individual
Priority date: 1941-01-21
Filing date: 1941-01-21
Publication date: 1942-04-21
Anticipated expiration: 1959-04-21

Description

April 21,1942. c. R. GENTRY' HUMAN HOIST Filed Jan. 21, 1941 BY 7 I W ATTORNEY 1 Patented Apr.21, 1942 UNITED STATES PATENT OFFICE?- l HUMANHOIST p s Cecil B. Gentry, Oklahoma canons. I 1 Application return 21, 1941, Serial naarazzo I 5 Claims. (01404 -19 1 The invention relates to apparatus for hoisting and thencsupporting a human beingin a position for working 'uponthe rodend of a pumping well 1 walking beam In pumping oil wells it often becomes necessary for a person to perform some chore at the end of the walking beam, for instance, disconnecting the rod hanger, or uncoupling the rods from the hanger, etc. Since thebeamendis usually some.

away from the beam. The other two expedients 1 are quite costly with the result that many operators still use the common painters ladder. It is also common practice for the workman, at times, to use a usual pipe wrench as a support upon which to stand while working adjacent the end of a walking beam. In this practice, the wrench 1 is frictionally engaged around the polish-rod in such a manner that it extends perpendicularly thereto, and the workman climbs up the rod and stands upon the wrench. This procedure not only injures the smooth surface of the polish rod, which consequently injures the usual stuffing box rubbers through which the rod reciprocates, but, is extremely dangerous to the workman. The wrench often slips upon the oily polish rod and drops the man. It also frequently occurs that the man, in performing his work, falls off the wrench.

The present apparatus isdesigned so as to accomplish its results with complete safety to the workman supported thereby.

All working crews are usually equipped with hoisting blocks, and in some instances, the men ride the block-hook up to the beam. This method is not practical because when the man has one foot in the hook he must use one arm around the line to keep himself from falling. This leaves onlyone hand free to accomplish the work.

The present invention is designed for use in connection with the usual block-hook, but is a separate and complete set of tackle, so designed that the man has both hands free to accomplish his work, and also designed so that he can anchor himself to the rod or rod hanger in such a manner that he will not swing away from the work.

The objects of the invention are to provide an economical hoisting apparatus for workmen which will be entirely-safe, and will at the same time permit thefree usage ofboth hands; which 1 will permit the.,workmar1; bodily relaxationpto some extent, while he is supported by the device;

which will be durable; and, which will be eflicient I it isintended.

'Infthe drawingr 1 g 5, a Figure l isa perspectiveview ofiaworker supported by the apparatus in a position to work at the end of a walking beams 1 Figure 2 is an elevational view of the foot support orstirrup; 1 v 1 Figure 3 is atop view of the stirrup! and} Figure 4 is a detail of the leg support. Like characters of reference designate like parts in all of the figures.

Refer now to the accompanying one-sheet in accomplishing all ofthe purposes for which drawing wherein:

The reference numeral l indicates the rod supporting end of a usual walking beam with a rod hanger 2 pivotally supported thereby. The numeral 3 indicates the upper end portion of a usual stirrup ID to receive the worker's foot, preferably the left one.

The stirrup H) has two oppositely extending projections H equipped at their outer ends with hooks I 2. The hooks l2 lie in the plane of the projection ll so that one or the other may be hooked around the vertical hanger 2 or, if the man is working 1 lower down, may be hooked around the rod 3.

Intermediate its ends, the chain 9 has a short length l3 with a hook H on the free end th'ere of. The hook it is used to also engage the hanger 2 or rod 3 to keep the man from swinging away from his work,

Aheavy belt I5 is attached by any usual or desirable means to the chain 9, adjacent the short length I 3, and acts to hold the mans body close to the chain 9. 1

In Figure 4 is best shown a leg strap l6 having snap-hooks l! at each end. The strap I8 is used to encircle the workers right hand leg just below the hip and permit him to partially sit down during his work. The snap-hooks I! can be selectively engaged in desired links of the chain 9 so that the workman may assume a comfortable position.

In operation, the worker merely steps his left foot into the stirrup and fastens the belt I 5 around his waist. His helpers then hoist him to the desired position, and he then engages the hooks IZ-and II to the hanger 2or rod 3. Both of his hands are thereby freed to accomplish his work. The leg strap l6 may be brought into operation at any time the workers left leg becomes tired. The free end of the rope I may,vof course, be anchored so that the helpers will not have to hold it during the time the work is being accomplished. v

Obviously the invention is capable of embodiment in other forms, and I therefore do not wish to be confined in its structure other than I am limited by the scope of the appended claims.

I claim: r

1. A workmans hoist including: a pulley block; a line threaded through the block; a stirrup attached to one end of the line;'a laterally projectinghook carried by the stirrup for engaging work; a belt attached to the line above the stirrup for encircling a persons waist; and a second hook connected to the line above the stirrup for engaging said work, said hooks co-acting to anchor the workman against swinging movement away from said work.

2. A workmans hoist including: a pulley block; a line threaded through the block; a'stirrup attached to one end of the line; a laterally projecting hook'carried by the stirrup; a belt attached to the line above the stirrup for encircling a persons waist; a second hook connected to the line above the stirrup, said hooks adapted to anchor the workman against swinging movement away from his work, and a leg strap adapted at both ends to be connected to the line above the stirrup.

3. In a human hoisting mechanism including a pulley block with a line threaded therethrough for hoisting a'workman, a stirrup attached to one end of the line and including: a loop for receiving a human foot; and a hook projecting laterally from the loop for engaging work to hold the stirrup in juxtaposition thereto.

4. A workmans hoist including: a line adapted to be drawn over a support for raising a person;

a stirrup attached to one end of the line; a laterally projecting hook carried by the stirrup for engaging work; means above the stirrup for holding the persons body against movement away from the line; and anchoring means above the stirrup for engaging said work and holding the line against movement away from the same.

5. A workmans hoist including: a line adapted to be drawn over a support for raising a person; a stirrup attached to one end of the line; a laterally projecting hook carried by the stirrup; means above the stirrup for holding a persons body against movement away from the line; anchoring means above the stirrup for engaging an object and holding the line against movement from said object; and means for attaching the persons leg to the line for holding it in juxtaposition thereto.

CECIL R. GENTRY.