US1405008A - Combined guard and hanger for pulleys - Google Patents

Description

K. M. ROSS].

COMBINED GUARD AND HANGER FOR PULLEYS.

APPLICATION HLED JAN-11,1921.

Patented Jan. 31,- 1922 l nve nCor.

KciTI M. R0651.

To all whom it may concern:

KARL M. nossnor SCHENECTADY; NEW YO "COMBINED GUARD AND HANGER non PULLEYS.

Be it known that 1, 1mm, M. Ross'r, a

citizen of the United States; residingat Schenectady, county of Schenectady, State of New York, have invented certain new and useful Improvements in Combined Guards and Hangers for Pulleys, of which the following is'a specification. v j.

The present invention relatesto comb ned guards and hangers for pulleys, and one specifieapplication is'their use in clothes line pulleys. The object of the'inventlon .15 to providea device ofthe character described of improved construction.

For a description of what I believe to be novel and my invention, attention is directed.

to the accompanyingdescription and the claims appended thereto.

In the drawing, which illustrates one of made of sheet steel and'is provided withone or more ribs 12extending lengthwise-there the embodiments of my invention, Fig. is a-v1ew in SlClB' elevat on of a clothes line pulley; Fig. 2 is a detall exploded View of one of the joints between the guard and hanger, and Figs. 3 and 4% are detailviews showing a reinforcing piece for the hangerj 5 "indicates a sheave pulley which may be of any suitable construction. Itcompnses a rim 6 which is concave in cross'sectionas is usual and a number of spokes 7. By preference the wheel and its spokes are ma'deof sheet steel because such a construction is light inweight and not (easily broken even by rough handling. The parts can also be easily coated with a durable material to prevent rusting. j

V In a device of this kind it is of the greatest importance to provide a-rigid guard and hanger and one which is light inweight and at the same time possesses great strength. That is to say, they must be stiff enought to prevent the wheel from rubbing on them This also means a;r1g1d rela when in use. tion between the guard and hanger if best results are to be obtained. T 0. this end the guard 8 is made of a strip of'sheet steel -ivhich completely encircles the wheel and has overlapping ends to form a joint, the latter coinciding with the region of the wheel axis. In order to increase the strength of the guard'it is provided with at least one, and preferably two ribs 9, throughout its length. The rib or ribs may advantageously be formed by dies before the strip is bent to enclose the wheel. It is necessary to interlock the overlapping ends of the guardin order to prevent distortion or racking at the Specificaticn of Letters Patent. 1 Pate t d J 3h 31 192 I Application filed January 11, 1921.. Serial No. 436,584; i

joint. 1T0 attainthis result, the ribs atone end of the guard,'as indicated at'lO, are made ust enough smaller than those at'theoppositeends so that when the ends of the.

guard are overlapped the smaller rib-s will snugly fit into the recesses of the larger will be in firm 0on ribs and the main bodies tact.

Referring now to thehanger, it is also importantthat'it shallbe" strong and alsoloe securely fastened. to the guard-sol that all angular movement of one w-ith'respect to the other about the wheel axis is prevented. Also that the joints between the guard and hanger heof such a character and the hanger of such a nature that the wheel cannot, when in use, distort the hanger and cause rub-Q hing.

0 this: end the U shaped hanger 11 is also of. These ribs are'purposely stopped-just short of the ends so as to providewaiclear space for the formationofone and prefer- .ably,.two cross ribs 13; The cross ribs are of suchsize that when. the guard and hanger i are assembled they will fit ornest with'the" rib or ribs 9 on the uppermost part of the guard and the body willfirmly contact with the adjacent body of the hanger. Stated another way, theleg has a projection-on one face and a recess on'the other which recess is ust large enoughto recelve and snugly contain the aligned projection on the guard.

teringholes in the guard and hanger, after which it is riveted over'at both ends to formretaining heads. The pivot securelyiholds the parts fromspreading in an axial direction and the interlocking ribs on the guard hholdthe overlapping ends thereof in such manner as to prevent the guard from bueklingorthe ends, from being displaced laterally. The pivot-also holds thecross ribs on the hanger in firm engagement with'the ribs on the guard with the result that there can be no angular movement of one part on the other, or bending of the hanger which would allow. the wheel to rub.

I may and preferably do turn the endsof the hanger inward as indicatedv at and cause them to make a snug fit with the outer edges of the guard. T he inturned edges of the hanger in addition to preventing sidewise displacement of the overlapping ends of the guard serve to relieve the strain on the pivot to a certain extent when the pulley is --in use and the hanger is subjected to heavy tension asit frequently is when the clothes line is heavily loaded or the line shrinks, or'both. V 7

To prevent wear on the outer end of the hanger a reinforcing piece 16 is provided 7 which is setinto a narrow recess or groove formed in the hanger at the bend. T his is held in place by projections or tongues 17 formed by a punching or cutting operation.

Inaecordanee with the provisions of the Patent Statutes, I have described the princif ple of operation ofmy invention, together with the apparatus which I now consider to represent the bestembodiinent thereof, but I desire to have itnnderstood thatthe apparatus, shown is only illustrative and that the invention may be carried out by other means. V

VVhat I claim as new and desire to secure by Letters Patent of the United States, is:

- 1. A pulley, a guard which encloses it and has overlapping ends, said overlapping ends having projections, a projection on onev of said ends fitting into a recess formed by a projection on the other end, and means for holding the projection in the recess.

,2. A pulley, a guard which encloses the "wheel and has overlapping ends, said guard.

wheel andhas overlapping ends, l'aid overlapping ends having parallel projecting strengthening ribs which extend lengthwise 0f the guard, the ribs on one endfitting into the recesses" tornied by the other ribs, means for holdingthe ribs in said recesses, and a hanger, the ends of which have transverse, parallelrecesses to receivesaid ribs. 5. A pulley, a guard which encloses it and located in the recess,

t. A pulley, a guard which. encloses the,

has a pair of overlapping ends, one of said ends havinga projection and the other end a recess, said pro ectlon fitting into the recess to form a. joint, a hanger having'two legs, 00-

opera-ting projections and recesses on the guard and legs to unite the parts, and a pivot for the pulley.

6. A pulley, a guardwhich encloses it and has overlapping ends, projections on both of said ends one of which fits into the other, a second projection on the side of the guard opposite said ends, a hanger for the pulley the legs of which have projections, the recesses formed by said projections fitting over the projections on the guard, and K163119120? holding said projections gagement. V I V 7. A,pulley, a guard whiehencloses 1t and in interlocking enhas overlapping ends, interlocking ribs on said ends, ribs on the side of the gnardopposite the joint, a hanger having legs, ribs formed in the legs which extend parallel with those on the guard and interloclr with them, andca pivot for the wheel that also holds said ribs in interlockin en a ement.

to t: b

8. A pulley, a guard which encloses it and has overlapping ends, means for holding said ends against sidewise displacement, a hanger having legs which straddle the wheel, turned over ends for the legs which engage one side of the guard and assist intransinitting strains from the wheel to the hanger. and a pivot for the wheel which is seated r in" the guard. I V

9. A pulley, a sheet metal guard which BIIClOSGSlt, and has overlapping ends, said guard being ribbed from end to-end, the ribs on one end fitting into the recesses formed by the ribs on the other end, a hanger which has lengthwise ribs and also'cross ribs, the cross ribs fitting over the ribs on-the guard, and a pivot for the wheel that also holds the rings of the guard and hanger in interlocking engagement.

10. A wheel having a guard-which en-,

closes it, a U-s'haped hanger having a recess at the bend, a reinforcingpiece which is and projections on the hanger which enga e the ends of the piece to hold it in place. I

11. A. wheel having a guard which encloses it, 'a U-shaped hanger, a reinforcing 'piecewhich'is located in the bend of the U,

and a "pair of projections onone part which engage the other to hold said piece in place.

Inwitness whereof, Ihave hereunto set my hand this 8th dayof January, 1921..

KARL M; nossii i

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