US692710A - Wheel. - Google Patents

Description

No. 692,710. Patentfe'd Feb. 4,1902.

' F. J. RANFORD.

WHEEL.

, (Application flld Mar. 27, 1901.

(No Model.)

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UNITED STATES ATENT OFFICE.

FRED J. RANFORD, OF QSWEGO FALLS, NElV YORK.

WHEEL.

SPECIFICATION forming part of Letters Patent No. 692,710, dated February 4, 1902.

Application filed March 2'7, 1901. Serial No. 53,067. (No model.)

To-alZ whont it may coil/ca rn:

Be it known that I, FRED J. RANFORD, of Oswego Falls, in the county of Oswego, in the State of New York, have invented new and useful Improvements in Wheels, of which the following, taken in connection with the acalinement of the pulley.

A still further object of this invention is to permit one of the pairs of clamping-bars to be inserted or withdrawn laterally or axially into and out of operative position without disturbing the other clamping-bars or affecting the alinement of the pulley.

To this end the invention consists in'the construction, combination, and arrangement of the component parts of a pulley, as hereinafter fully cle'scribed, and pointed out in the claims. w

Referring to the drawings, Figure 1 is a side elevation of my improved pulley, portions thereof'being broken away for disclosing the tenons of the clamping-lugs. -Figs. 2 and 3 are respectively a face view and a sectional View taken on line 3 3, Fig. 1,'one of the quarter rim-segments being removed in Fig. 2.- Fig. 4 is an isometricview of two of the adjacent lugs, showing the staggered relation Figs. 5 and 6 are detachedof their tenons. views of the lugs seen in Fig. 4.

Similar reference characters indicate corresponding parts in all the views.

As seen in the drawings, my improved pulley consists, essentially, of a rim 1, inner and outer clamping- bars 2 and 3, lugs at, lapping upon the outer ends of the clamping- bars 2 and 3, and additional lugs 5, lapped upon the outer ends of the lugs 4.

The rim 1 is preferably formed of wood composed of a series of layers glued or otherwise secured together face to face and is split transversely in intersecting planes at substantially right angles to each other for jforminga series of quarter-segments, the

meeting edges of which are provided with a series of projections and depressions for forming interlocking shoulders which serve to stiifen the rim and to prevent lateral displacement of the meeting'edges of said segmenis. These shoulders preferably consist of the extended ends of some of the layers which form the rim of the pulley. This method of interlocking the meeting edges, however, being of minor importance, it is not believed to be necessary to further illustrate or describe the same. The meeting ends of each of these segments are each provided with apertures or sockets 8 and 8, which are generally arranged in pairs in staggered relation to each other for receiving tenons 9 and 10, formed,- respectively, upon the outer ends of the lugs 4 and 5, said tenons being also arranged in staggered relation to each other and are secured within the apertures S and 8. These tenons are usually of substantially the same width and are arranged in alinement with adjacent layers of the rim of the pulley. The tenons 9 are formed, as previously stated, upon the lugs & and are usually ofless width than said lugs for forming the shoulders 11, which engage'the inner faces of the rim-segments to give more bearing for the lugs.

The lugs 4 are preferably arranged in pairs at opposite sides of the meeting facesof the rim-segments, the adjacent faces of each pair being substantially parallel and separated from each other for receiving the ends of the clamping-bars '2 and-3 and are formed with suitable apertures for receiving the clampingbolts, presently described.

The lugs 5 are preferably formed of less length than the lugs 4, are also arranged in pairs at opposite sides of the meeting edges of the rim-segments, and are lapped upon the opposite faces of the lugs 4,, being of greater width than their tenons lOfor forming suitable shoulders 12, which are also engaged- It is apparent from the foregoing description that the lugs 4 and 5 at each end of the rim-segments abut one against the other, that their tenons 9 and 10 are arranged in staggered relation to each other and extend through the rim,being formed of substantially the same length as the thickness of the rim, and that the rim is thus provided with diametrically opposite lugs extending inwardly toward each other, the lugs 4 adjacent to the meeting edges of the rim-sections being extended inwardly a greater distance than the lugs 5, and by thus securing the lugs to the rim and forming the same as just described the adjacent ends of the clamping-bars and rim-segments are materially stiffened and the strain is transmitted more evenly from the rim to the clamping-arms and from the clamping-arms to the rim, thereby forming a more perfect pulley and adapting the same to better resist the strain incidental to the engagement of the belt therewith.

The clamping- bars 2 and 3, as previously stated, are arranged in pairs, the bars of one pair being disposed in a plane at substantially right angles to the bars of the other pair, said bars of each pair being arranged at opposite sides of a suitable shaft, as 14, and adapted to be frictionally engaged therewith by suitable clamping-bolts or other equivalent means 15.

As seen in the drawings, I have shown two pairs of the clamping-bars 2, being arranged side by side in the direction of the axis of the pulley, with their adjacent faces in close contact and their opposite ends inserted between the diametrically opposite pairs of lugs 4, it being understood that there are one set of lugs for the adjacent ends of each pair of the clamping-bars. These clampingbars are formed of substantially the same length as the inner diameter of the pulley, their end faces being adapted to engage the inner faces of the meeting ends of the segments of the rim and serving to materiallystiffen the adjacent ends of the rim-segments and also to relieve the strain upon the clamping-bolts previously mentioned.

The clamping-bars 3 are also arranged in pairs at opposite sides of the clamping-bars 2, the inner faces of the bars 3 being disposed in close proximity to the outer faces of the bars 2, the bars 3 of each pair being arranged at opposite sides of the axle or shaft 14 and are clamped upon the shaft by suitable clamping-bolts 15'. The opposite ends of these clamping-bars 3 are interposed between diametrically opposite lugs 4, there being a set of lugs for each end of each pair of clamping-bars 3. These bars 3 are also formed of substantially the same length as the inner diameter of the pulley and serve the same purpose as the clamping-bars 2, and it will be understood that by employing two sets of clamping-bars at right angles to each other the clamping-bars of one set may be removed without displacing the clamping-bars of the other set if it is desired to remove one-half of the pulley or one of the quartersegments.

The means for drawing the meeting edges of the rim-sections together consist of the clamping- bolts 17 and 18, the bolts 17 being passed through apertures formed, respectively, in the lugs 5 and 4 at opposite sides of the meeting edges of the rim-segments and the adjacent ends of the clamping- bars 2 and 3, and the bolts 18 are passed through apertures formed in the lugs 4 at opposite sides of the meeting edges of the rim-segments and also through the adjacent ends of the clamping- bars 2 and 3. It is therefore evident that when the lugs are drawn together by the bolts 17 and 18 the adjacent ends of the clamping arms or bars are firmly impinged between the lugs 4 and form a substantially integral pulley.

In assembling the parts of my invention the clamping- bars 2 and 3 are placed upon the shaft at substantially right angles to each other and when located in the desired position are securely clamped to the shaft by the bolts 15 and 15. The rim sections or segments are then placed in position, and their meeting edges are drawn together by the bolts 17 and 18, which also secure the rim-segments to the clamping- bars 2 and 3.

If at any time it may be desired to remove one of the segments, it is simply necessary to remove the bolts 17 and 18, whereupon the desired segment may be readily withdrawn in a substantially radial direction.

In order to permit either of the quarter rim-segments to be removed independently of the others when the pulleys are of small diameter, I usually provide the rim with cutouts or apertures 17, alined with the bolt 17, which allows said bolt to be removed endwise through said apertures, or at least a sufficient distance to clear the lugs 4 of the sections to be removed. The bolts 18, which clamp the sections in position, may then be removed or at least Withdrawn a suflieient distance to clear the lugs 4 of the section to be removed, whereupon said section may be readily withdrawn. It should be understood however, that in large pulleys the formation of the apertures 17 is unnecessary. I also provide the arms 2 and 3 of the small pulleys with slots 17", which are extended outwardly to the end faces of said arms from the apertures which receive the bolts 17. The slot 17 may also be dispensed with in large pulleys or in such sizes of pulleys as will permit the bolts 17 to be withdrawn in either direction a distance equal to the combined thickness of the lugs 4 and 5 in addition to the thickness of the nut at the end of the bolt, or, in other words, to permit the bolt to be Withdrawn endwise a sufficient distance to clear the in ner face of the lug 4 without striking the inner face of the rim.

The operation of my invention will now be readily understood upon reference to the IIO . cut, is

, faces abutting against the inner faces of the.

1. A wheel comprising axle-clamping bars, and a split rim having the meeting ends of its sections each provided with lugs having staggered tenons extending through the rim and secured to the bars.

2. The combination with a diametrically split rim, the meeting ends of each half-section being each provided with an inwardlyprojecting-lug,clamping-bars havingtheir opposite ends interposed between the lugs, and their intermediate portions arranged to engage opposite faces of the shaft and means for drawing adjacent lugs toward each other into engagement with the bars. 3. A wheel comprisingadiametrically. split rim having the meeting ends of its sections each provided with inwardlyprojecting lugs tenoned into the rim in staggered relation to each other, and shaft-clamping bars having their opposite ends impinged between the ad-. jacent lugs of the opposite rim-sections.

4. Awheel comprisingadiametrically split rim. having the meeting ends of its sections each provided with inwardly-projecting lugs tenoned into the rim in staggered relation to each other, clamping-bolts passed through the lugs for drawing the rim-sections together, and means detachably connected to the rim for securing the rim to the shaft.

5. A wheel comprisinga diametricallysplit rim having the meeting ends of its sections each providedwith inwardly-projecting lugs tenoned into the rim in staggered relation to each other and clamping-bars having their opposite ends interposed-between opposite adjacent lugs of each section and their intermediate portions adapted to engage a shaft,

and means for clamping the lugs and arms together.

6., A wheel comprisinga diametrically split rim having themeet-ing ends of its sections each provided with inwardly-projectinglugs tenoned into the rim in staggered relation to each other, and clamping-bars having theiropposite ends interposed between opposite adjacent lugs of eachsection and their end meeting ends of said sections, the intermediate portions of the bars being arranged to engage the opposite faces ofthe shaft for the purposeset forth. 7

7. Awheel comprisinga diametrically split rim having the meeting vends of its sections each provided with inwardly-projecting lugs tenoned into the rim in staggeredrelation to each other, and clamping-bars having their opposite ends interposed between opposite adjacent lugs of each section and clamping clamping the opposite ends of 8. Awheelcomprisingarimformedofquan' ter segments having their meeting ends formed With inwardly-projecting lugs, and independent pairs of clamping-bars each having their opposite ends insertedbetween diametrically opposite lugs. 1

9. A wheel-rim split transversely in intersecting planes for forming quarter rim-seg- 1nents,in combination with independentpairs of clamping-bars arranged at substantially right angles to each other and having their meeting-faces alined respectively with the opposite meeting faces of the rim-segments, and means for detachably securing the bars to the segments. I p

'i 10. The combination with the sections of a split rim, each section being provided with inwardly-projecting lugs in proximity to its 1 aces of the meeting ends of thesections,and means engaged with the ad acent lugs for drawing the rim-sections together and thereby the bars; be

tween adjacent lugs.

- 11. The combination with opposite aX1e-' clamping bars, of a split rim having the meet ing faces of its sections in substantial aline ment with the adjacent meeting faces of-the bars,the inner faces of the meeting ends of the rim-sections being engaged with the end faces of the bars and provided with inwardly-projecting-lugs engaged with the arms and detachably secured thereto.

12. The combination with oppositeaxla clamping bars, of a split rim having the meeting faces of its sections-in substantial a1ine= ment with the adjacent meeting faces of the bars, the inner faces of the meeting endsof the rim-sections being lapped upon the end faces of the, bars and provided with inwardly projecting lugs lapped upon the arms, and means engaged with the lugs for drawing the rim-sections and bars together.

13. The combination with opposite axle clamping bars, of a split rim having the meet- 'IIO ing faces of its sections in substantial alinement with the adjacent meeting faces of the bars, the inner faces of the meeting ends of the rim-sections resting upon the end faces of the bars and provided with inwardly pro j jecting lugs engaged with the arms and de= tachably secured thereto, and means for forcing the intermediate portions of the bars toward each otherfor the purpose described.

lvThe combination with independent pairs of clamping-bars arranged in intersect= ing planes and formed of substantially the same length, of a rim dividedinalinement' withthe'meeting faces of the barsof'each .pair, lugs tenoned in the rim-segments of the rim in proximity to their meeting faces, and

meansfordetachablysecnring the ends of the bars to the adjacent lugs.

15. A Wheel comprising a split rim, the meeting ends of its sections being each provided with lugs tenoned in the rim in staggered relation to each other, clamping-bars having their opposite ends inserted between adjacent opposite lugs,said bars being removable endwise 0f the Wheel, and means for detachably securing the bars to the lugs.

16. A wheel comprising a rim having opposite pairs of inwardly-projecting lugs tenoned in the rim, said rim being split between the

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