Search Images Maps Play YouTube News Gmail Drive More »
Sign in
Screen reader users: click this link for accessible mode. Accessible mode has the same essential features but works better with your reader.

Patents

  1. Advanced Patent Search
Publication numberUS1771059 A
Publication typeGrant
Publication dateJul 22, 1930
Filing dateMar 1, 1929
Priority dateMar 1, 1929
Publication numberUS 1771059 A, US 1771059A, US-A-1771059, US1771059 A, US1771059A
InventorsJames J Regan
Original AssigneeJames J Regan
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Traveling block
US 1771059 A
Abstract  available in
Images(1)
Previous page
Next page
Claims  available in
Description  (OCR text may contain errors)

July 22, 1930. 1J. REG/1N 1,771,059

@NTIFRICTIOM TRAVELING BLOCK Filed March 1, 1929 l IN VENTOR.

A TTORNEY.

Patented July 22, 1930 VUNrrlaD STATES JAMES J. EEGAN, or Los ANGELES, dALIEoEiv-IA (ANTIFRICTION) TRAVELIN BLOCK Application filed March 1, 192s; sor-iai fro. 3"4'313'05.'

This invention relates to an improved travcling-block for oil-well elevators wherein simplicity, strength and low cost of manufacture are among the desirable advantages se- 5 cured.

Another object of the invention is to provide improved bearings which are furnished with dependable means for keeping them properly lubricated.

Other objects and advantages may hereinafter appear.

Referring to the accompanying drawings which illustrate what is at present deemed to be a preferred embodiment of the invention.

Fig. 1 is a side view of the complete device shown partly in section and partly in eleva,- tion.

Fig. 2 is an edge elevation part of one of the pulleys being broken away to contact the view.

Fig. 3 is an 'elevation of a modification.

Referring in detail to the drawings, a composite crown-block and pulley-block construction is shown which comprises the side plates 1, the upper handle 2 and lower handle 3. The internal portion of the frame comprises the vertical parallel bars 5 which are preferably equal in length and which are secured together in spaced relation to each other by means of the pulley-shafts 6, 7 and 8 in conjunction with the spacing sleeves 9, said shafts each having threaded extremities which extend beyond the sides of the frame and have screwed on to them the nuts 11, 12 and 13 whereby clamping means are provided to secure the frame parts in place.

The side plates 1 are provided with feet 1a having apertures lb to receive attaching means for securing them to any suitable support such as the I-beam 1.

Between the upright frame bars 5 are mounted upon the various shafts 6, 7 and 8 the tractionl pulleys one of which, designated 15, is shown inthe drawings, being mounted on the shaft 7.

The shoulder 1s on each side plate 1 underliesthe lower end of the adjacent outer frame bar 5 and thus adds to the stability of the supporting means.

In order to afford dependable means for lubiioacingtiie various poneys, uio'sl'ia'ft if is piovidodwith an' oii passage oiroserv'oi 25 fromwhie'htlie radial oil-feedi'fgbianches 26 lead, said" passage beingclojsedlat4 it's ends" by screw plugs 25'a each of which. cmiiiinif cate's with an Aoil pressure feed device 25".y

Each of its radial bra1r`rches26 registers: with* a duct or port 27 through thetadjacei'itspac-A ing sleeve 9.1 In order to lr'eep tlie v'arious spacing sleeves in" their correct circumferential positions a plurality ofsii'ojijtf spline grooves 28 are provided in shaft 7" and' in i these grooves are seated theu spl'infe keyipins 29; key pinsar`e positioned,"as'jsliowi in Fig. 11, with tho'` greater portion of their' lengths alifningl with the frame bar-"sA 5, their ends projecting laterally beyonl,saf'rdI bars? and engaging internal groovesl orrecesse's" infv sardi sleeves:

the spacing' sleeves 9 to" keep from turning and toihold them with' their' oil ports 27 in register withl the *radiali oi'li ductsY 262 v Each traction punoy 15A is' providfoawiui 1 rollerL bearings 1G55 which are interposed" bei tween hub 15h oftheVl wheel. and' the` particular' plates enclose the roller bearings?.15b,y lllie-i i diroorfoiiiff. what i' handlev 3 ifs-securedtol'the-shaft 8; Each of these handles is of a U-shaped form and has its limbs provided with alined apertures and estal 55 which is supported upon a base 55",

andtheir upper ends bolted to opposite sides of a head piece 56. Otherwise the pulleys 57% are mounted in the same manner as the pulleys which have been previously described.

esl

The base flange 55t of the pedestal 55 stabilizes the supporting means for the outer side plates 51, thus performing a function which corresponds to that of the shoulder 1s of Figs. 1 and 2.

Claims:

l. In a device of the character described, a frame comprising a plurality of parallel bars, said bars having a series of alined openings, a shaft tted Within said openings and extending from side t0 side of said frame, a spacing sleeve around each section of the shaft which is located between adjacent bars of said frame, clamping means engaging the end portions of said shaft to clamp said bars against the ends of said sleeves, said shaft being provided with splines which underlie said sleeves and bars, said shaft being provided with an oil supply and With radial oil feeding passages leading therefrom, said sleeves having ducts adapted to registerwith said oil feeding passages, and key pins seated in said spline opposite said bars and having end portions projecting beyond the sides of said bars o keep in register with each other the radial oil passages of said shaft and the oil ducts of said sleeves. Y

2. In a device of the character described, a frame comprising a plurality of parallel bars which extend longitudinally thereof, said bars having a plurality of alined shaft openings which are located along a line that is intermediate the end portions of said bars, a bearing shaft extending through and fitted Within said alined openings, combined bearing and spacing sleeves fitted to said shaft and located between said bars, clamping means secured to said shaft to clamp said shaft bars and sleeves together, and combined leg and side plate at each end of said frame to complete and stabilize the same, said combined leg and side plate overlying the adjacent bar of said parallel bars and having a shoulder which abuts against the end thereof, said combined leg and side plate being ineluded Within said clamping means.

In testimony whereof I hereunto ax my signature.

JAMES J. REGAN.

Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US2606000 *Aug 2, 1950Aug 5, 1952Cleve Edward VanHeader block for oil well masts
US4090692 *Oct 21, 1976May 23, 1978Plastic Products, Inc.Cable gathering and orienting assembly
US5649635 *May 12, 1994Jul 22, 1997Manitowac Crane Group, Inc.Easily removable sheave assembly
Classifications
U.S. Classification254/404
International ClassificationB66D3/06
Cooperative ClassificationB66D2700/028, B66D3/06
European ClassificationB66D3/06