US326596A - Loose pulley - Google Patents

Description

(No Model.) 3 Sheets-Sheet 1.

M. L. SENDERLING.

Loose PULLBY, WHEEL, te.

Patented Sept. 22, 1885.

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(No Model.)

M. L. SBNDERLING.

Loos PULLEY, WHEEL, am.

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UNITED STATES PATENT rrrcn.

MARTIN L. SENDRLING, OF JERSEY CITY, NEI/V J ERSEY.A

LoosE PULLEY, WHEEL, ete( SPECIFICATION forming part of Letters Patent No. 326,596, dated September 22, 1885.

Application tied February 1s, 1885. (No model.,

To all whom it may concern;

Be it known that I, MARTIN L. SENDER- LING, of Jersey City, in the county of Hudson and State of New Jersey, have invented a new and useful Improvement in-Loose Pulleys, Wheels, &c., of which the following is a specification.

My invention is applicable to loose pulleys and sheaves employed in hoisting apparatus or elsewhere, car-wheels, wagon or vehicle wheels, and, generally, to all wheels or pulleys which have a comparatively slow speed of rotation. Itis applicable also to all such wheels or pulleys, whether they have bearingsurfaces directly on the shaft or axle or upon a sleeve or enlarged portion thereof, and whether such sleeve be solid or provided with an internal oil-chamber communicating by apertures with its surface.

The object of the invention is to provide a wheel or pulley having in its hub an internal bearing-surface, and having an oil-chamber external to and surrounding the bore, and which is of suicient size to contain a large surplus of oil, and so constructed that the oil will be carried around with the hub as it rotates and discharge in copious quantity upon the bearing-surface; also, to catch the oil which may chance to work out longitudinally beyond the bearing-surface and return such oil to the main ,oil-chamber in the hub.

The invention consists in novel features of construction and in combination of parts, which are hereinafter described, and pointed out in the claims, whereby the desired result will be obtained.

In the accompanying drawings, Figure l represents an axial section of a loose pulley embodying the invention, including a portion of ashaft having an enlarged portion on which the pulley is adapted to turn. Fig. 2 represents a transverse section on the plane of the dotted line x, Fig. l. Fig. 3 is an axial section of a sheave also embodying my invention, including a portion of a shaft and a sectional view ofa sleeve secured to the shaft and on which the sheave turns, said sleeve being provided with an internal oil-chamber and apertures leading thereforni to its circumference. Fig. 4 represents a transverse section on the plane of the dotted line y y, Fig. 3. Fig. 5 is an axial section of the principal portion ofa car-wheel also embodying the invention, including a side view of a portion of an axle, and'a section of a sleeve on which the wheel turns, the sleeve being provided with an internal oilchamber and apertures leading therefrom to its/circumference.` Fig. 6 represents atransverse section on the plane of the dotted line z a, Fig. 5. Fig. 7 represents an axial section of the principal portion of a car-wheel also embodying the invention in a slightly-modified form, and a side'view of a portion of the axle having an enlarged portion on which the wheel turns. Fig. 8 is a transverse section on the plane of the dotted line :if :'f, Fig. 7. Fig. 9 represents an axial section of a vehicle-wheel hub and box also embodying the invention, a partly sectional view of the axle, and a section of the sleeve secured thereon and on which the hub or box turns, said sleeve being provided with internal oil-chambers and apertures leading therefrom to its periphery. Fig. l0is a transverse section on the plane of the'dotted line ss, Fig. 9, and Figs. 1l and 12 are views similar to Figs. 1 and 2, illustrating a modification thereof.

Similar letters of reference designate corresponding parts in all the figures.

Referring iirst to Figs. l and 2, A designates a shaft having an enlarged portion, A, which is here represented as formed integral therewith, and on which the loose pulley may turn. B designates the rim of the pulley,-and B the hub. The hub is bored out sufficiently large to iit upon the large portion A of the shaft, and has at the ends inner flanges, b, which project inward at the ends of the enlarged portion A', holding the pulley in place lengthwise of the shaft. It has also outer flanges, c, which extend inward nearly to or toward the shaft. In the hub B of t-he pulley is formed an annular oil-chamber, here shown as divided into four portions orsections, d, by radial partitions or ribs d', as Will be best seen in Fig. 2. A greater or less number of partitions than four might be formed in the hub, dividing the oil-chamber into a greater or less number of sections or portions d. I

The space between the flanges by c, at each end of the hub, constitutes the oil-chamber e,

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which is continuous around the shaft, and" which is of considerable less diameter or has less radial projection than the oil-chamber d, as will be best understood from Fig. 1. The oil-chamber e communicates with the several sections ot' the oilchamber d by means of openings orv apertures e', one entering each section d, and which are located at the periphery of the oilchamber e. as shown in Fig. 1, so that as the openings e come to.

their lowest position below the shaft the oil will run freely through them from the chainberV c into the corresponding section d of the main oil-chamber.

In order to enable the pulley to be placed on `the enlarged portion A of the shaft, its hub B is made in two parts, secured together by bolts f and lforming an oil -tight joint,

suitablejgpacking,f*, being interposed, if desired. One portion of the hub has formed with it the web and rim B of the pulley, and the other portion is formed with aflange to receive the bolts f. The annular portion of metal b l which forms the bore of-the pulley has init an annular aperture, b2, which is produced by the two portions of the hub not coming together at that point, and which may be continuous around the bore, or consists of slots at intervals around the bore. As this pulley rotates on the shaft the partitions d serve to lift the oil in the chamber-sections d, and as such secticns severally come to the top ofthe shaft the oil in them pours through the slot or'aperture b`L upon the bearing-surface. As the chamber-sections d come successively to their lowermost position below the shaft the oil is returned into them from the overflow-chambers e through the communicating openings e'. In order 4to prevent any oil from running down on the inner sides of the outer flanges, c, and thence outward on the shaft, I form such flanges with an inwardly-turned lip or concave groove, 0*, whereby the oil so running down will be turned aside and carried around the shaft, and its escape along the shaft beyond the pulley will be prevented. This construction of hub is also applicable to sheaves, and I have shown in dotted outlines in Fig. 1 the periphery B* of asheave which may be substituted for the straight rim B of the pulley.

Referring now to Figs. 3 and 4:, A designates the shaft, on which is secured a sleeve, A*, by a pin, a, or other suitable means. This sleeve is constructed with an internal oilchamber, A2, and has holes or apertures a* extending to its periphery. The sheave having a rim, B*, and a hub, B', which are here shown as cast in one piece, has fitted within ita separable hub or thimble, B, which is inserted and secured within it so as to form, in e'ect, a fixed part of the sheave. The sheavehub B has formed in it a main oil-chamber, d, divided by a number of radial partitions, d', into a corresponding number of chamber-portions, d, as described with reference to Figs.

1 and 2. The hub or thimble B2 is provided at one end with a shoulder, b3, which bears against the sheavehub B', and at'the other surfaces.

circumference, with the several portions d of the main oil-chamber. The separable hub or thimble B'l is provided with radial ribs (1*, which meet the partitions d and complete the separation of the chamber-sections d from each other. In the separable hub or thimble B2 are openings bl, leading to the bearing-surfaces of the sleeve A*, and whether the sheave is rotated in one direction or the other the partitions d lift the oil, and it is poured through the openings or apertures. b'lonto the bearing- As the chamber portions come successively to their lowerinost position below the shaft the oil is returned to them from the overflow-chambers e through the openingse. Packingsf* may be used to form an oiltight jointbetween the separable parts of the sheave. In this case also the flanges c have inwardlyturned lips or concaved grooves 0*, which carry the oil around the shaft andprevent it from escaping along the shaft. i

Referring now to Figs. 5 and 6, which represent a car-wheel having my invention applied in a form substantially similar to that shown in Figs. 3 and 4, B designates the hub of the wheel. and B 'the tread or rim thereof. In the hub B is fitted aseparable hub, B, having at one end a head or collar forming a shoulder, b3, and received within the annular rabbet b in the wheel-hub, and having screwed or otherwise secured upon its' opposite end a cap, B3, which bears against the oppo-'ite end of the hub B and firmly secures the separable hub therein. Packings f* are interposed to form oil-tight joint's. Upon the shaft or axle A is secured a sleeve, A*, by means of a pin, a, or otherwise; and in said sleeve is' an internal oilchamber, A, from which apertures'a* lead to the periphery. In the hub B is a main oil-chamber, d, divided by partitions or ribs d into four or more sections, as before described. In the head of the separable hub B2 and in the .cap Bs are end or overflow oil-chambers, e, formedy by anges b and c, as before described. The flanges b bear against opposite ends of the sleeve A*, thus preventing end play of the wheel upon its shaft orf/axle. washers,of steel or other metal, b*, interposed between the flanges b and the ends of the sleeve A*. The outer flanges, c, have inwardlyturned lips, forming concave grooves 0*, which prevent any oil overflowing lengthwise on the shaft beyond the wheel, and theanges c are also provided with annular grooves, wherein are fitted dust-rings b5, of felt or other suitable fabric. In the separable hub B and I have here shown IOO IIO

oil-chamber d, and through these holes or passages e oil flows from the end chambers, e, into the several sections of the main oil-chamber d as said sections are brought successively to their lowermost position below the shaft or axle. I have also shown holes or passages e2, which lead from the passages e radially inward to the periphery of the sleeve A*, and as the wheel rotates the oil in the main oilchamber d is raised by the partitions d and iiows copiously through the passages e and el onto the bearing-surface of the sleeve Adi I have also represented the separable hubB2 as provided at about the middle of its length with holes b2, which are coincident with the parti-- tions d', and through which oil is delivered upon the periphery of the sleeve A* as the wheel rotates in one directionor the other.

The car-wheel represented in Figs. 7 and 8 does not differ greatly from that described, save that it has no separable hub B2. A designates the shaft or axle, upon which is an enlarged portion, A. The hub B of the wheel is constructed with an annular oil-chamber, d, divided into four or more sections by partitions d, and the inner wall of which is formed by the annular body of metal b forming the bore of the wheel. Atl one end of the hub B are integral flanges b and c, one`of which, b, bears against the end of the enlarged portion A', and the other of which is formed with a lip or groove, and provided with a dustring, b5. At the opposite end the hub B is closed by a cap, B3, secured thereinto, andhav-l ing also anges b and c, the former, b, bearing against the end of the enlarged portion A/, and t-he latter being provided with a lip or groove, 0*, and a dust-ring, b5. At each end of the hub is the overiiow or end oil-chamber, e, formed between the flanges band c, and communicating by holes or passages e with the sections of main oil-chamberd. In the annular portion of metalb* which forms the bore of the hub are openings e2, leading from the chamber-sections d to the bore, and midway of the length of the hub are other holes or openings, b", which are shown dotted in Fig. 8,and which are coincident with the partitions d', so

that oil will pass through them as the wheel is rotated in either direction. As the wheel rotates the oil is lifted'by the partitions d, and as the several chambersections d pass over the shaft they pour oil copiously through the openings e2 and bz upon the bearingsurface of the wheel. As the chamber-sections d pass successively to theirlowermost position below the shaft-the oil is returned into them from the end chamber, e, through the openings or passages e. In Fig. 7 the holes e'l are near the end wallsy ofthe chamber d, and if this chamber has no partitions or conductors the oil,

when the wheel is not running at too high a speed, will flow down these walls and into the holes e2.

Referring now to a vehicle-wheel hub and axle-arm shown in Figs. 9 and l0, B designates the usual hub, which is constructed with mortises b5 to Yreceive the spokes, and in which is secured a separable box or thimble, B5. This box or thimble is slightly tapered from the inner end outward, and being insertedl in the hub is there secured by a cap', B, screwed or otherwise secured on its end.' At theinner l ychamber, e3, to which v'oil may be supplied through a hole closed by a plug, f. The sleeve Ail is constructed with internal oilchambers A2, having holes c* leading to its periphery, and in the axle A is formed a groove or passage, e, through which the oilchamber e3 communicates with the internal oil-chamber A2 of the sleeve Aci.' B is a main oil-cha`mber d, divided into sections by partitions d', and these several' sections communicate by passages e with v.the end oil-chamber, e, formed in the cap B3, also, by

holes e2 with the bearing-surface of the box` B5. In the box B5 are radial holes or openings b2, (shown in Fig. 10,) which are coinci-l dent with the partitions d,and which deliver oil to the bore of the box whether the Wheel be rotated in oneor the other direction.` the wheel is4 rotated the oil is lifted by the partitons d and poured copiously through the In the hub As j IOO

openings d2 and e2 upon the bearing-surface of 105 the -sleeve At, and as the chamber-sections d severally pass below the shaft or axle the oil is returned into them from the end chamber, e, through the passage e.

It will have been seen from the foregoing description that the function of the partitions d is to lift the oil and conduct it to and pour it through the several holes leading vto the bearing-surface of the wheel or pulley, and the partitions therefore constitute conductors for oil. These conductors may be made otherwise than by forming partitions which divide the chamber ci into separate sections, and such a modification is shown in Figs. ll and 12, which represent a pulley similar to that shown in Figs. l and 2 except in afew particulars. The oil-chamber d is undivided by any partitions,and has holes d2 to deliver oil to the bore,but in the chamber d are conductors d*, which, as the pulley rotates, lift the oil and 'conduct it to and pour it through the holes b2.

Ihave shown such conductors at diametricallyopposite points and curved in opposite directions,so as to perform their function in whichever direction the wheel or pulley may turn. In this pulley the chamber d is undivided,but communicates with the end chamber, e, by a number of openings, e', at different points in its circumference.

' 'In each example of my `invention here shown it will be seen that there is a main oilchamber in the hub beyond the periphery of the bearing-surface, provided with conductors main chamber.

In each of the examples of my invention here shown oil may be introduced into the f chamber or chambers d and e through a hole which maybe closed by plug f.

In lieu of the holes b2, extending across the partitions, holes may be formed in the wall 'of metal b* close tothe partitions onleach side thereof.

It will be observed that in each example of my Jinvention wherein are radial partitions d the holes or passages e', through which the end chambers, e, communicate with the several,

`chamber-sections d, are about midway between the partitions df.

This arrangement 1s not'essential, but is very desirable, yfor the reason that the oil will not be as apt to llow from the chamber-sections d into,- the'end chamber, e, whenA said chamber-sections Apassover the shaft as would be-the ease were e near the partitions d. As the wheel or pulley turns the partitions d lift the oil, andas the chamber-sections d come into position above the shaft the oil is thrown over past the openings e and has little chance to pass through them. v

What I claim as my invention, and` desire to secure by Letters Patent, is

1. Thecombination, with a shaft or axle, of awheel or pulley tted thereto, and having in its hub an annular oil-chamber surrounding the bore and lconstructed with, radial partitions dividing said chamber into sections,l and with holes or apertures opposite said partitionsin the metal forming the inner wall Aof the chamber andthe bore of the Wheel or pulley, whereby oil will belifted by said partition'sand delivered through said holes or apertures whether'thenwheel or pulley rotatesin one direction or the other, substantially as and for the purpose herein described.

2. The combination, with a shaft or axle having upon it an enlarged portion, of awheel or pulley fitted to turn upon said enlarged portion, and having in its hub an annular oilchamber surrounding the bore and constructed with radial partitions dividing said chamber into sections, and with holes or apertures in the metal forming the inner wall of said chamber and the bore of the wheel or pulley, and throughwhich o il will be delivered upon the enlarged portion of the shaft o r axle, substantially asand for the purpose described.

3. The combination, .with the shaft or axle and the sleeve secured thereon and constructed with an internal oilchamber and holes leading from said chamber to its periphery, of a wheel or pulley fitted to turn upon said sleeve and having in its hub an annular oilchamber surrounding the bore and constructed with radial partitions dividing saidchamber into sections, and with holes or apertures leading from the several sections through the metal forming the inner Wall of said chamber and the bore of the wheel or pulley, substantially as and for the purpose herein described.

4. rllhe combination, with a shaft or axle, of a wheel or pulley fitted to turn thereon, and having in its hub an annular main oil-chamber and an end oil-chamber, which communicate with each other, as described, and constructed with holes or openings leading from the main chamber to the bore, and with conductors in the said main chamber for directing oil toward and into said holes or openings as the wheel or pulley rotates, substantially as and for the purpose herein described.

5. The combination,with a shaft or axle, of

a wheel or pulley jitted to turn thereon, and

having in its hub an annular main oil-chamber and an end oil-chamber, and constructed with radial partitions dividing said main chamber into sections, and with holes or apertures leading from said sections through the metal forming the inner wall of the main chamber and the bore of the wheel or pulley, and with holes or apertures leading from the end oil-chamber to the several sections of the main chamber, substantially as and for the purpose herein described.

6. The combination,with a shaft or axle, of a wheel or pulley tted to turn thereon, and having in its hub an annular main oil-chamber and an end oil-chamber of less diameter than said main chamber, and constructed with radial partitions dividing said main chamber v into sections, and with holes or apertures leading from said sections through the metal forming the inner wall of the main chamber and the bore of the wheel or pulley, and with holes or apertures leading from the end oilchamber to the severall sections of the main chamber, substantially as and for the purpose herein described.

7. The combination,with a shaft or axle, of

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a wheel or pulley fitted to turn thereon, and

having an end oil-chamber the outer wall of which is formed by an inwardly-projecting ange receiving the shaft or axle through it, and having an inwardly-turned lip,c*,by which oil is directed aroundthe shaft and prevented from flowing lengthwise thereof beyond the wheel or pulley, substantially as and for the the purpose herein described.

8. The combination,with a shaft or axle, of a wheel or pulley having in its hub a main annular .oil-chamber divided by radial partitions, as described, and an end oil-chamber communicating with the main-chamber sections, and having a separable hub or thimble forming the bore, and constructed with holes or apertures leading from the several chamber-sections to the bore, substantially as and ber, d, divided by partitions d', and with pairs of inwardly-extending angesb and o, forming an end or overflow chamber, e, at each end of the hub, having holes or apertures b2 leading from the main-chamber sections d to the bore, and holes or passages e leading from the end chambers, e, to the mainchan1ber sections d, substantially as and for the purpose herein and having in its hub an annular main oilchamber and an end oil-chamber, which communicate-With each other as described, and constructed with holes or openings leading I5 from the main chamber to the bore, substantially as herein described.

MARTIN L. SENDERLING.

described. Witnesses:

l0. The combination, with a shaft or axle, FREDK. HAYNEs, of a Wheel or pulley fitted to turn thereon, MATTHEW PoLLooK.

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