US909439A - Belt-carrier. - Google Patents

Description

C. MILLER.

BELT CARRIER.

APPLIGATION FILED APR. 24. 1907.

Patented Jan. 12, 1909.

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BELT CARRIER.

APPLIOATION FILED 211.24, 1907.

Patented Jan. 12, 1909.

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' BELT-CARRIER.

vNo. 909,439.

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.Patented Jan. 12, A190,9.

To all whom "it may concern:

Be it known that I, 'CHA-nnss MILLER, of Syracuse, in the county of Onondaga, lin the State of New York, have invented new `and useful Improvements in Belt-Carriera of which the following, taken in connection with the accompanying drawings, is a full, clear, and exact description.

This invention .relates vto belt-carriers which are designed to be placed at ltheside of a driving-pulley to serve as a loose-pulley onto which the belt is to be shifted.

The main object of the present invention is to produce a simple and reliable beltcarrier which can be easily and convenientlyset in position while the shaft of the pulley is rotating, and which shall be entirely independent from the shaft so that the latter will be absolutely free from wear.

A further object of the invention is to produce a belt-carrier which can be readily and conveniently adjusted to allow it to be used in connection with pulleys of various sizes, and to provide simple and effectual antifriction means which will facilitate the operation of shifting the belt onto and off from the carrier.

Other objects of the invention will be apparent from the novel construction and arrangement of the component parts of the belt-carrier hereinafter fully described and set forth in the claims.

In the accompany-ing drawings Figure' 1 is partly a side view and partly a sectional view of the preferred form of my improved beltcarrier supported in o erative position; Figs. 2 and 3 are vertica sections taken on the lines -X--X- and -Y-Y- respectively in Fig. 1; Fig. 4 is an enlarged detail plan view of one of the belt-supporting bars employed in the referred form of carrier; Fig. 5 is a verticalpsectional view of a modified form of the belt-carrier; Fig. 6 is a detached view of the carrier-head employed in the said modified construction; Fig. 7 is'an enlarged detached plan view of one of the belt-supporting bars used in the latter construction; Fig. 8 is a fragmentary front view of a belt-carrier embodying a further modification of the invention; and, Fig. 9 is partly a side view and partly a vertical sectional view of the carrier-head shown in Fig. 8.

Similar letters and numerals of reference indicate corresponding parts in the various views:

.-A-- denotes a power-shaft journaled in -C- ldenotes :a driving-pulley secured yto the shaft, and -D- represents the belt traveling on said pulley.

My improved belt-carrier comprises essentially a revoluble head 1 journaled aXi ally in line with the shaft -A- and provided with a plurality of horizontally disposed bars -2-2- which are set parallel with the shaft to support the belt `D when the latter isshifted off from the pulley -C-. The carrier-head. 1- generally consists of a vertically disposed annular plate or disk as shown in Figs. 1, 2, and 3 of the drawings. The plate is formed with a tubular hub -3- which is journaled on a bearing-sleeve 4- supported on a hanger -5- which may be fastened to any suitable object above the shaft as shown in Fig. 1. The said hanger is provided with a vertical slot -6- through its lower end and in said slot is preferably disposed the rear end of the sleeve 4f-n Said sleeve surrounds the shaft but is independent thereof and on its rear end portion it is formed with an external circumferential flange -7- which is detachably secured to the said hanger by means of bolts -8-8-, and on the forward end of the sleeve is formed an external circumferential flange -9-, between which flanges the hub Z3-.of the head is conned. The said bearing-sleeve is provided in its upper portion with an opening -10- extending throughout its length, said opening being of sufficient width to allow the shaft -A- to pass therethrough in the operation of attaching the sleeve to or detaching it from the hanger -5. By slotting the lower end of the said hanger as shown and described it is obvious that the same can be readily placed in position without interfering with the shaft.

The head or -plate -1- is divided on a line extending diametrically through its hub, asindicated at -11-, in order to allow the same to be mounted on the iianged sleeve #-4- and Yremoved therefrom when required, and the two sections of the hub are formed with corresponding longitudinal `flanges 1212 which are united by means of bolts -13-13* or other fastening devices. On the backs of the plate-sections are provided two pairs of corresponding ears -14-14- disposed at vthe line of division, and through said ears pass bolts -1515-, whereby the two sections are more securely united.

The belt-supporting barsV -2--2- are obviously connected to the head or plate at points which are on a circular line concentric with the pulley -C-. Each of said belt-supporting bars comprises preferably a pair of parallel plates LL-ar- Ybetween which are arranged a set of antifriction rollers -b--b journaled on shafts -c-csecured to the plates and disposed at right angles to the shaft -A-. 'lhese bars are designed to be adjusted on the head -1- so as to adapt the carrier to pulleys of different diameters, and the rollers may project slightly beyond the plane of the face of the pulley owing to their shafts being at right angles to the ulley-shaft.

'lo obtain t e aforesaid adjustment of the belt-supporting bars, I prefer to provide the head or plate -lwith radial slots -16-16- into which the rears ends of the bars are inserted and in which they are adapted to slide longitudinally, said ends of the bars being formed with screwthreaded studs -17-17 for the reception of nuts -18-18- by which they are clamped in position. It will be evident that by placing the rollers -b-bin the position shown, the belt can be shifted to and from the carrier with ease owing to the small amount of friction on the belt.

Any suitable and "well known device may be employed for shifting the belt. In the present instance I have shown a longitudinally movable horizontal rod -19- sliding in guides -20-20- provided on the lower end of a bracket -21- depending from the hanger -5-, said rod being provided with the usual belt-receiving fork -22- at one end and having a hand-lever -23- pivotally connected to its opposite end.

'W hile I prefer to form the adjustable beltcarrier as hereinbefore described, still, at the same time the said carrier may be constructed as shown in Ifigs. 5 and 6 of the drawings. In this instance thehead comprises a series of arms 24-24- extending radially from the hub -3-, on which arms the belt-sry pporting bars -2-2- are adjistably mounted. "lhese arms -24-24- are preferably inserted in sockets -25-25- on the hub and may be secured therein in any stitable manner, however, the said arms may be formed integral with the hub if desired. rI he arms are preferably formed rectangrlar in cross-section and the belt-sipporting bars leys of varioi'fs sizes.

through the sleeves -26-26 and engaging the arms. lhe antifriction rollers -b-b-- are applied to these belt-supporting bars inA the manner hereinbefore described and as shown in b ig. 7 of the drawings.

l Referring to Iiigs. 8 and 9 ofthe drawings, the head of the carrier consists of an ordinary wooden pulley. In this case, each belt-supporting bar comprises a base or attachingplate -dwhich extends across the face of the pulley and is curved correspondingly and a pair of parallel plates a-a extending preferably the entire length of the base or attaching-plate d-, the rollers -b-hbeing pivoted between the plates cw-c as aforesaid and shown in Fig. 8.

While I prefer to form the bearing-sleeve -4- with a longitudinal opening for the purpose hereinbefore described, still at the same time it will be understood that the same may be made in two parts like the hub -3-, therefore I do not limit myself in that respect. Furthermore I do not confine myself to placing kthe antifriction rollers with their shaft disposed at right angles to the pulley-shaft, inasmuch as the angle may be varied as conditions may demand.

rlhs described belt-carrier is subject to other modifications without departing from the s irit of the invention.

Vv at I claim as my invention is 1. rlhe combination with a shaft, a pulley secured to said shaft, and a belt traveling on the pulley, of a revolt-.ble belt-carrier supported axially in line with the shaft and independent thereof and provided with a lurality of sets of antifriction rollers onto'w ich the belt is adapted to be shifted as set forth.

2. 'l he combination with a shaft, a pulley secured to said shaft, and a belt traveling on the pulley, of a belt-carrier comprising a head supported revolubly and independently of the shaft and axially in line therewith,V

belt-supporting bars mounted on the head, and antifriction rollers pivoted to said bars and having their axes disposed at an angle in relation to the shaft as set forth.

3. rl'he combination with a shaft, a pulley secured to said shaft, and a belt traveling on the rlley, of a belt-carrier comprising a revo uble member disposed axially in line with the shaft and su ported independently thereof, a plurality o belt-sip orting members each formed with a pair o parallel horizontal plates dis osed longitudinally in relation to the sha t, and antifriction devices confined between the plates of each member onto which the belt is adapted to be shifted as set forth.

4. rIhe combination with a shaft, a pulley secured to said shaft, and a belttraveling on the pulley, of a belt-carrier onto which the belt is adapted to be shifted, said carrier comprising a revolubly supported head disposed axially in line with the shaft and independently thereof, a series of belt-supporting bars .mounted on the head and disposed radially in relation to the shaft, each of said bars composed of a pair of parallel plates spaced apart, and a set of antifriction rollers pivoted between the plates of each bar and having their shafts disposed at an angle to the shaft as set forth.

5. The combination with a shaft, a pulley secured to said shaft, and a belt traveling on the pulley, of a belt-carrier onto which the belt is adapted to be shifted, said carrier comprising a head sup orted revolubly and axially in line with the shaft, a series of beltsupporting bars disposed parallel with the shaft and connected radially adjustable to the head, means for clamping the bars in their positions, and rollers ivoted to the said belt-supporting bars and aving their axes disposed at an angle to the shaft as set forth.

6. rI`he combination with a shaft, a pulley secured to said shaft, and a belt traveling on the ulley, of a belt-carrier onto which the belt is adapted to be shifted, said carrier comprising a suitably sustained hanger, a bearing-sleeve secured to the hanger and surrounding the shaft and independent of the latter, a head mounted revolubly on said sleeve, and a plurality of sets of belt-supporting rollers mounted on said head as set forth.

7. The combination with a shaft, a pulley secured to said shaft, and a belt traveling on the ulley, of a belt-carrier onto which the belt is adapted to be shifted, said carrier comprising a suitable hanger provided with a vertical slot extending through its lower end and through which the shaft independently passes, a bearing-sleeve secured detachably to the hanger at the slot and provided in its upper portion with an opening extending throughout its entire length and of a width exceeding the diameter of the shaft, the said sleeve surrounding the shaft and being indeendent thereof, a head provided with a tubular hub mounted revolubly on the sleeve and divided on a line extending diametrically through the hub, means for separably uniting the two sections of the head, and belt-supporting bars secured radially adjustable to the head as set forth.

8. rl"he combination with a shaft, a pulley secured to the shaft, and a belt traveling on the pulley, of a belt-carrier onto which the belt is adapted to be shifted, said carrier comprising a suitable hanger provided with a vertical opening through its lower end, through which opening the shaft independently passes, a bearing-sleeve formed at one end with an external peripheral flange by which it is detachably secured to the hanger at the opening and provided at its opposite end with an external peripheral flange, said sleeve being provided in its upper portion with an opening extending throughout its entire length and of a width exceeding the diameter of the shaft, and surrounding the said shaft and independent thereof, a radiallyslotted head formed with a tubular hub mounted revolubly on the sleeve an d confined between the flanges thereon and divided on a line extending diametrically through the hub, means separably uniting the two head-sections, belt-su porting bars mounted adjustably in the s ots of the head, and a set of antifriction rollers pivoted to each belt-supporting bar and having their axes disposed at an angle in relation to the shaft as set forth.

CHARLES MILLER.

Witnesses:

J. J. LAAss, S. R. LARONE.

Images