US1362778A

US1362778A - Pulley construction

Info

Publication number: US1362778A
Application number: US395550A
Authority: US
Inventors: John B Castino
Original assignee: Individual
Current assignee: Individual
Priority date: 1920-07-12
Filing date: 1920-07-12
Publication date: 1920-12-21
Anticipated expiration: 1937-12-21

Description

J. B. CASTING.

PULLEY CONSTRUCTION. Aryucmon HLED'JULY 12, 1920.

Patented Dec. 21, 1920.

2 SHEETS-SHEET I- DWI/0J3. Ccwng.

J. B. CASTINO.

PULLEY CONSTRUCTION. 7 APPLICATION FILED JULY 12, 1920.

1,362,778. I Patented Dec. 21, 1920.

2 SHEETS-SHEET 2.

in mentor Jk/LZZ Caajd/w,

UNITED STATES JOHN B. CASTING, OF CHICAGO, ILLINOIS.

PUL'LEY CONSTRUCTION.

Application filed July 12 To all 10 [0771 it may concem Be it known that I, JOHN B. CAs'rINo, a citizen of the United States, residing at Chicago, in the county of Cook and State of Illinois, have invented certain new and useful Improvements in Pulley Construction, of which the following is a specification. 1

This invention relates to improvements in pulley construction particularly adapted, though not necessarily limited in its use as a driving or driven pulley and one of the objects of the invention is to provide an improved pulley of this type, the active surface of which is laminated and embodies any desired number of laminations or layers formed of a series of comparatively narrow segmental shaped elements constructed of leather or any other suitable material, the elements being assembled so that'the joints of the adjacent layers will be arranged in staggered relation, the said elements and the pulley hub having improved inter-engaging means whereby the parts may be detachably secured together.

A further object is to provide an improved pulley of this character embodying a series of segmental shaped sections each having a tongue projecting from the inner edge thereof, the said tongue being arranged to one side of the longitudinal center of the segment whereby the segments of one series will overlap the joints of the segments of the next adjacent series, thereby rendering it possible to have all of the segments of a uniform shape.

A further object is to provide an im proved pulley of this character so constructed that the parts may be formed by vpunch press operation or die casting whereby the cost of production will be reduced and milling of the parts will be dispensed with.

To the attainment of these ends and the accomplishment of othernew and useful objects as will appear the invention consists in the features: of novelty in substantially the construction, combination and arrangement of the several parts hereinafter more fully described and claimed and shown in the accompanying drawings illustrating this invention and in which Figure 1 is a view partly in side elevation, partly broken away and partly in section of one form of pulley.

Fig. 2 is an enlarged detail sectional view as taken on line 22 Fig. 1..

Specification of Letters Patent. Pate'llted 'Dec. 2 1, 1920.

1926. Serial No. 395.550.

Fig. 3 is a top pl an view of a pulley showm the staggered relation of the elements.

*1g. 4 1s a detail perspective view of one of the elements constituting the surface of the pulley.

F ig.'5' is a detail perspective view of one of the end members which cooperates with the segments.

F"g; 6 is a view similar to Fig. 1 of a modified form of the invention.

Fig. 7 is a side elevation of one of the elements which constitutes the body of the pulley in the form shown in Fig. 6:

8 is a top plan view of a pulley.

Fig. 9 is a detail sectional view taken on line 99 Fig. 6. 1

Fig. 10 is a detail lar to Fig. 4.

Fig. 11 is a detail perspective view similar to Fig. 5. j

Referring more particularly to the drawings and in the form of the invention shown perspective view simi-.

in Figs. 1 to 5, the pulley embodies a body portion 15 having a hub 16 by means of which the pulley may be secured to a shaft.

The periphery 17 of the pulley is provided along one of its edges with a circumferential flange 18, the other edge of the pe riphery being preferably recessed as at 19. The periphery of the body is provided with a plurality of grooves 20 having restricted inlets 21 and which grooves open through the periphery of the body portion.

These grooves are arranged about the periphery, are spaced from each other and QX-' tend lengthwise of the pulley and are sub stantially parallel with the shaft 22 to which the pulley is secured.

These recesses 20 may be of any desired size and configuration and any number may be provided about the periphery of the pulley.

The surface of the pulley is formed by a series of segmental shaped elements 23 which are comparatively narrow and are each provided with. a tongue or projection 24 extending from the inner edge 25 of the elements and this tongue is provided with an opening 26 therethrough. The tongue 24 is preferably of a thickness equal to the thickness. of the element 93 and is located at a point to one side of the longitudinal center of the element so. as to form a short end 27 and a long end 28.

The tongues 24- are of a size and configuration to fit within and substantially fill the segments 23 is assembled in the same man- 7 ner but the elements 23 are reversed with respect to the elements of the next adjacent series so that the long end 28 will be disposed on the side of the tongue 24 when placed upon the pulley, opposite to the side on which the long end of the next adjacent series of elements is arranged so that the elements of adjacent series will overlap and break joint with the elements of the next adjacent series.

These elements 23 may be constructed of any suitable material and may be of any desired thickness and height. A suitable and eflicient material for this purpose is leather but it is to be understoodthat it is not desired to be limited to any specific material from which the segments 23 are to be constructed, as any material suitable for the purpose may be employed.

Then the grooves 20 have been thus filled by the lateral positioning of the elements .23 therein, the openings 26 in the tongues or grooves 20 so that the opening 31 will reg 'ister with the openings 26. The end plate is also of a segmental shape but differs from the elements 23 in that the tongue or projection 30 is preferably arranged at the longitudinal center of the element 29 so that the element 29 will project equally on opposite sides of the'tongue or projection 30.

This tongue or projection 30 will extend into the grooves. 20 and an annular member 32 is then applied to the reduced portion 19 of the periphery 17 so as to abut the end plates or elements 29. These elements 32 are provided with openings 33 therethrough to register with the openings 31 of the plates 29 and fastening bolts 34 having heads pass through suitable openings 36 in the flange 18, through the registering openings 26 of the elements 23 and through the open int, in the annular member 32. The ends of the bolts are preferably threaded as at 36 t0 receivenuts 37 which latter are preferably seated in enlarged portions 38 of the openings The nuts 37 are all tightened upon the bolts 34 and this operation will cause the annular member 32 to coiiperate with the flange 18 to clamp the segments 23 therebetween to form the active surface or edge of the pulley.

The annular member 32 and the flange 18 may be of any desired height and if desired and when the surface of the pulley has been thus assembled and secured in position, such surface may be crowned or shaped to meet the purpose for which it is desired or if desired the entire periphery may be flat.

In the form of the invention shown in Figs. 6to 11 the body portion of the pulley is constructed of a series of disk-like members 39 preferably cut away for the purpose of lightness, each of the disks is provided with a recess 40 opening through the periphery thereof and which recess is provided with a reduced opening 41. 7

Any number of these disks or elements 39 may be assembled and fastened together by means of suitable bolts or tie rods passing through openings 42.

The periphery of the pulley is constructed in the same manner as in the form shown in Figs. 1 to 5. When the body portion of the pulley has been thus constructed the segments 23 are placed in position in the groove 40 to form annular members, the segments being so disposed that the adjacent segmentswill overlap or break joint with the segments of the next adjacent series. Annular members 4344 are provided with openings 45-46 therethrough which register with the alined openings 26 of the segments 23 and these annular members are placed adjacent the opposite faces of the end series of segments 23. Fastening bolts 47 having heads 48 and threaded extremities I 49 pass through the openings 45 26 and 46 while nuts 50 are placed upon the threaded ends 49 of the bolt to draw the annular ele ments 4344 together thereby clamping the segments 23. I

Obviously the heads 48 and nuts-5O may be recessed into the annular members 43-44 so as to prevent the ends of the bolts from projecting beyond the lateral face of the pulley.

The disks 39 may be formed of any suitable material as may also the segments 23.

If desired segmental shaped plates 51 may be provided to cooperate with the segments 23 and which plates are provided with an ear or projection 52 having an opening 53 therethrough, the ear or projection being disposed at the longitudinal center of the element 51 so that the ends of the element will project for an equal distance on With this improved construction it will use material which would otherwise be scrapped. I

It will also be manifest that the active surface of the pulley formed by the elements 23 may be readily repaired as the worn elements 23 may be readily replaced by new ones.

While the preferred form of the invention has herein been shown and; described: it istto be understood that various changes may be made in the details of construction, andin the combination and arrangement of the several parts within the scope of the claims without departing from the spiritof this invention.

What is claimed as new is 1. A pulley of the character described embodying a body portion provided with a series ofspaced longitudinal grooves arranged around and opening through the peripherythereof, each of said grooves having a reduced entrance opening, a plurality of disk like annular elements encompassing the said body portion, each of the said elements embodying av plurality of segments, each segment having a tongue projecting from the inner edge thereof, said tongues conforming to the contour of and adapted to be seated in the said grooves, means forming closures for the ends of the grooves, and means for exerting lateral pressure upon the segments for clamping the parts together.

2. A pulley of the character described embodying a body portion provided with a series of spaced longitudinal grooves arranged around and opening through the periphery thereof, each of said grooves having a reduced entrance opening, aplurality of disk like annular elements encompassing the said body portion, each of the said elements embodying a plurality of segments,-each segment having a tongue projecting from the inner edge thereof, said tongues conforming to the contour of and adapted to be seated in the said grooves, means forming closures for the ends of the grooves, and means for exerting lateral pressure upon the segments for clamping the parts together, the last recited means embodying tie rods or bolts passing through the tongues in the respective grooves and engaging the said closures.

3. A pulley of the character described embodyin a body portion provided with a series of spaced longitudinal grooves arranged around and opening through the periphery thereof, each of said grooves having a reduced entrance opening, a plurality of disk like annular elements encompassing the said body portion, each of the said elements embodying a plurality of segments, each segment having a tongue projecting from the inner edge thereof, said tongues conforming to the contour of and adapted to be seated in the said grooves, the joints formed at the ends of the proximate segments of adjacent elements beingarranged in staggered relation, means forming closures for the ends of the grooves, and means for exerting lateral pressure upon the segments for clamping the parts together.

4. A pulley embodying a body portion having an integral circumferential flange at. one end having spaced longitudinal grooves within the flangeand opening through the periphery of the body and also through the opposite end of the body, said flange having openings in alinement with said grooves, the said grooves having reduced entrance openings, a plurality of disk like annular elements encompassing the body, each of the elements embodying a plurality of comparatively narrowsegmental shaped elements arranged end to end, said segmental elements eaeh having a tongue projecting from its inner edge conforming to v the contour of the groove and adapted to be inserted into the grooves through the open end thereof, means forming closures for the grooves and adapted to abut the outer annular series of segmental elements, an. annular end plate encompassing the end of the said body and abutting the said closure, and fastening means for securing the parts together.

pulley embodying a bodyportion having an integral circumferential flange at one end having spaced longitudinal grooves within the flange and opening through the periphery of the body and also through the opposite end of the body, said flange having. openings in alinement with said grooves, the said grooves having reduced entrance openings, aplurality of disk like annular elements encompassing the body, each ofthe elements embodying a plurality of comparatively narrow segmental shaped elements arranged end to end, said segmental elements each having a tongue projecting from its inner edge conforming to the contour of the groove and adapted to be inserted into the grooves through the open end thereof. means forming closures for the grooves and adapted to abut the outer annular series of segmental elements, an annular end plate encompassing the end of the said body and abutting the said closure, anc. fastening means for securing the parts together, the-said fastening means passing through portions of the segmental elements, the said flange and the end plate. 1

6. A pulley embodying a body portion having an integral circumferential flange at one end having spaced'longitudinal grooves within the flange and opening through the periphery of the body and also through the opposite end of the body, said flange having openings in alinement with said grooves, the said grooves having reduced entrance openings, a plurality of disk like annular elements encompassing the body, each of the elements embodying a plurallty of comparatively narrow segmental shaped elements arranged end to end, said segmental elements each having a tongue projecting from its inner edge conforming to the contour of the groove and adapted to be inserted into the grooves through the open end thereof, means forming closures for the grooves and adapted to abut the outer annular series of segmental elements, an annular end plate encompassing the end of the said body and abutting the said closure, and fastening means for securing the parts together, the said fastening means engaging the flange and end plate and also passing through the said tongues within the grooves. I

7. A pulley embodying a body portion having an integral circumferential flange at one end having spaced longitudinal grooves within the flange and opening through the peripheryof the body and also through the opposite end of the body, said flange having openings in alinement with said grooves, the said grooves having reduced entrance openings, a plurality of disk like annular elements encompassing the body, each of the elements embodying a plurality of comparatively narrow segmental shaped elements arranged end to end, said segmental elements each having a tongue projecting from its inner edge conforming to the contour of the groove and adapted to be inserted into the grooves through the open end thereof, means forming closures for the grooves and adapted to abut the outer annular series of segmental elements, the end of the said body adjacent the open ends of the grooves being shouldered to form a seat, an annular end plate encompassing the body and restin upon the seat, and fastening bolts engaging the end plate and the said flange and passing through the said tongues within the said grooves.

8. A pulley embodying a plurality of Vannular disk shaped members each having a plurality of recesses opening through the periphery thereof, the entrance opening of said recesses being restricted, said members being secured together to form a body with the respective recesses registering to form longitudinal grooves opening through the periphery of the body, a plurality of annular elements each embodying a series of segments arranged end to end, said segments each having a tongue adapted to be inserted into the respective grooves through the end thereof, said tongues conforming to the contour of and substantially filling the grooves, means for securing the annular members together, means for forming closures for the ends of the grooves, and means disposed within the grooves to engage the said tongues and also engaging the last recited means for exerting lateral pressure upon the said segments.

9. A pulley embodying a body portion provided with a series of spaced longitudinal grooves arranged around andopening through the periphery thereof, each of said grooves having a reduced entrance opening, a plurality of disk like elements encompassing the said body portion, each of the said elements embodying a plurality of segmental shaped sections, each of said sections having a tongue projecting from the inner edgethereof to one side of the longitudinal center of the section said tongues; conforming to the contour of and adapted to be seated in the grooves, and means for securing the parts together and exerting a lateral pressure upon the said segments. Y v

10. A pulley embodying a body portion provided with a series of spaced longitudinal grooves arranged around and opening throughthe periphery thereof, each of said grooves having a reduced entrance-opening, a plurality of disk like elements encompassing the said body portion, each of the said elements embodying a plurality of segmental shaped sections, each of said sections having a tongue projecting from the inner edge thereof to one side of the longitudinal center of the section, whereby the segments maybe arranged to break joint with the segments of the next adj acent annular element, said tongues conforming to the contour ofand adapted to be seated in'the grooves, and means for securing the parts together and exerting a lateral pressure upon the said segments.

11. A pulley of the character described embodying a body provided with a plurality of grooves opening through the peripherythereof and having restricted entrance openings at the periphery of the body, a surface for the pulley, said surface embodying a plurality of comparatively narrow segmental shaped elements, tongues projecting from theinner edges of the elements, said tongues conforming to the contour of and adapted to be seated in the grooves whereby the inner edges of the elements beyond the tongue will engage and rest upon the periphery of the body, and means for securing the elements against displacement with respect to the body.

12. A pulley of the character described embodying a bodyprovided with a plurality of longitudinal grooves opening through the periphery thereof and having restricted entrance openings at the periphery of the body, a surface'for the pulley, said surface embodying a plurality of comparatively narrow segmental shaped elements, tongues projecting from the inner edges of the elements, 7

said tongues conforming to the contour of and adapted to be seated in the grooves whereby the inner edges of the elements beyond the tongues will engage and rest upon the periphery of the body, and means for securing the elements against displacement with respect to the body, the said elements being arranged end to end in adjacent series, the elements of one series being arranged in staggered relation with respect to the elements of the next laterally adjacent series.

13. An element for surfacing pulleys, said element being formed of comparatively narrow sheet material and being of a slightly arcuate configuration, said element having a tongue or projection extending from the inner edge of the element intermediate its edges and being disposed within the confines of the lateral faces of the element.

14-. An element for surfacing pulleys, said element being formed of comparatively narrow sheet material and being of a slightly arcuate configuration, said element having a tongue or projection extending from the inner edge of the element intermediate its edges and being disposed within the confines of the lateral faces of the element, said tongue or projection being disposed to one' side of the longitudinal center of the element whereby one end of the element on one side of the tongue Will be longer than the other end adapting said element to be reversed.

15. A pulley of the character described embodying a body portion provided with a plurality of spaced grooves opening through the periphery thereof, a plurality of disklike annular elements encompassing the said body, each of-the said elements embodying a plurality of segments, each segment having a tongue projecting from the inner edge thereof, said tongues conforming to the contour of and adapted to be seated in the grooves, means forming closures for the ends of the grooves, and means for exerting lateral pressure upon the segments for clamping the parts together.

16. A pulley of the character described embodying a body portion provided with a plurality of grooves opening through the periphery thereof, a plurality of comparatively narrow segmental shaped elements, each of said elements having a tongue projecting from the inner edge thereof, said tongues being adapted to be seated Within the grooves, the said elements being arranged side by side and also encompassin the body, and means for exerting lateral pressure upon the segments for clamping the parts together.

In' testimony whereof I have signed my name to this specification on this 9th day of July, A. D. 1920.

JOHN B. CASTING.