US1382799A - Belt-fastener - Google Patents

Description

G. E. PURPLE( BELT FASTVEN'ER. v APPLLCATIQN FILED IAR. l, 1919.

, y APatented June 28, 1921. V .li I K I j@ Il Z0 UNITED STATES AhlN'l' QFFIC.

GEORGE E. PURPLE, 0F LA GRANGE, ILLNOIS, ASSGNOR T FLEXIBLE STEEL LACING COIVILDANY, OF CHICG, LLNGIS, .EL GORFORATON 0F ILLINOIS.

BELT-FASTENER.

Specification of Letters Patent. Patnted June 28, 1921.

Application tiled March 1, 1919. Serial No. 279,965.

To all whom it may concern.'

Be it known that l, Gnonon E. PURPLE, a citizen olf the United States, residing at La Grange, in the county of Gool( and ttate ot' illinois, have invented new and use't'ul lmprovcnients in Belt-Fastenerstof which the following is a full, clear, concise, and enact description, reference being had to the acconipai'iying drawing, forming apart oi this specification.

My invention relates to belt tasteners,- that is, devices designed to connect the adjoining ends of a belt. t d

The object of my invention is the production of a device ot' this character which will be oi? durable and economical construction, one which may be readily and easily applied, and one which will engage with the adj oining ends of the belt with great lirinness and security. A still further object is the production of a fastener of the character inontioned which will rest lliat against the opposite surfaces of the belt and which will be substantially lHush therewith, so as to avoid the 'formation of an Obstruction thereby. @ther objects will appear hereinafter. n

With these objects in view, the invention consists in the combinations and arrange ments oi' parts hereinafter described and claimed.

The invention will be best understood by reference to the accompanying drawings forming a part of this specification, and in which- Figure 1 is a side elevation ot a belt of the type with which the device lioi'ining the subject matter of this application is especially designed for use, said belt being shown mounted for operation,

Fig. 2 is a top plan view oit the adjoining end portions of the belt, said ends being shown connected with belt fastening devices embodying the invention;

Fig. 3 is an enlarged section taken on line Figs. 4f and 5 are perspective views ot the opposing plates included in the construction; and j Figs. 6 and 7 are perspective views respectively of a bolt and its cooperating nut, used in connection with the plates shown in Figs. 4 and 5.

The preferred Vform ot' construction, as

.or other material, the belt being ot enceptionally heavy construction and being arranged to travel around drums 11 of com! paratively large diameter. To support the belt in the travel thereof between the drums 11, two sets of rollers 11 and 11 are provided; the former vfor the support of the upper portion of the belt and the latter for the support of the lower portion of the belt. Such a belt is subjected, when in use, to eX- cossively hard wear and severe strains, neces sitating an exceptionally strong and el'licient connection between the ends thereof, as will, of course, be readily understood.

The device which l have provided to lill this mission comprises two enlongated dat plates 12 and 13 adapted, when in use, to be arranged upon opposite sides of the belt in opposing or registering positions, so that said plates traverse the joint in the belt, as clearly seen in Fig. 3. Formed in the opposite ends of said plates 12 and 13 are alining openings 14; and 15 respectively adapted to accommodate connecting bolts 16 and their cooperating nuts 17. The nuts 17 are provided at their outer sides with screw-driver slots 18 to permit of engagement therewith oi a suitable tool tor rotating the same.

At the openings 14 and 15 said plates 12 and 13 are formed with inwardly inclined 4flanges 19 and 2O respectively. Said flanges 19 and 2O result in the formation oit seats or countersunk portions adapted to snugly receive the nuts 17 and the heads ot bolts 1G, so that, in the application of the device to a belt, the outer sides of said nuts and bolt heads will be flush with the outer sides of plates 12 and 13, as clearly seen in Fig. 3. The flange 2O is of squared Jormation to receive the correspondingly formed` heads of the bolts, whereby the latter are held against relative rotative movement.

The provision ot the inwardly inclined flanges 19 and 20, in addition to resulting in the formation ci' seats or countersunk portions as just described, also results in the formation of inwardly extending projections adapted, in the application of the device to a belt, to sink into or depress the belt, thereby more firmly grasping or clamping the same,

with the result that a secure engagement of the belt is effected and pulling or tearing out of the device prevented.

To further aid in the effective engagement of the device with the ends of the belt, the plates 12 and 13 intermediate the bolt openings therein, are formed with inwardly ex tending prongs 21 which are adapted, in the application of the device to a belt, to pierce the latter as clearly seen in Fig. 3.

ln order to provide a wide purchase between the nuts 17 and the bolts 16, so as to prevent the stripping of the threads, said nuts are formed at their inner ends with reduced extensions 17 adapted to pass through the openings 14 so as to engage with a comparatively wide or long portion of said bolts. In the application of the device to a belt, the bolts used are longer than the thick ness of the belt, so that after application of the nuts to the bolts, the threaded ends of the latter will protrude from the nuts andu beyond the surface of the belt. These protruding bolt ends, after the nuts have been tightened to the point desired, will be sheared off through the medium of a suitable shearing device. In this shearing of said. ends of the bolts, the latter are made flush with the outer sides of the nuts, and in the shearing operation the ends of the bolts are mutilated or distorted to such an extent as to lock the nuts thereon, preventing accidental detachment therefrom.

rllhe endsof the plates 12 and 13 are beveled at their inner and outer sides as at 22 and 23 respectively. r1`he beveling 22 at the inner sides of said plates obviates the possibility of cutting of the belt as might otherwise occur were square corners em ployed at these points. The beveling 23 at the outer sidesl of said plates avoids the formation of obstructions which might otherwise be formed and against which the rollers used in connection with the belt f Vwould pound in the operation of the belt.

l entirely eliminate any pounding action.

ln the connection of the adjoining ends of a belt, a plurality of connecting devices of the character described is employed, these devices being arranged side by side in spaced relation extending across the joint in the belt, as clearly seen in Fig. 2. When thus applied itwill be seen that the connecting devices will lie flat upon the opposite sides of the belt, the outer sides thereof being practically iiush with the corresponding sides of the belt avoiding the production of any obstructions, such Vas might interfere with the rollers about which the belt moves when in use.

Although the device is shown applied to a belt and this use thereof has been described and claimed, it is understood that the employment of the device is not confined to this use, but may be used in a multitude of different ways to connect the adjoining ends of other devices or members resembling in form the ends of a belt.

I, therefore, do not wish to be limited in this respect but desire to avail myself of the use of the device in any connection commensurate with the scope of the claims hereto appended.

Having thus described my invention, what l claim as new and desire to secure by Letters Patent is:

1. A device for connecting the abutting ends of a belt, comprising two coi-extensive plates engaging opposite sides of the belt and extending across the abutment of said ends; securing means extending between and connecting corresponding ends of said plates Iand passing through the belt; and countersunk seats provided in said plates for the ends of said securing means, said seats being so formed and disposed that they grip the belt as clamping force is exerted by the tightening of said fastening means, whereby the plates are embedded in the belt surface.

2. i device for connecting the abutting ends of a belt, comprising two opposing members engaging against opposite' sides of the belt and each extending across the abutment of said ends; securing means extending between and connecting said members and passing through the belt, ysaid members having openings to accommodate said securing means; and projections on the inner sides of said members surrounding said openings and engaging the belt, to cause said plates to become Substantially flush with said belt when said fastenings exert a clamping pressure.

3. A device for connecting the adjoining ends of a belt, comprising two opposing members extending across the junction of said belt ends and having openings; securing means extending between and connecting said members and passing through the belt and the openings in said members; and enlargements at the ends ,of said securing means, said members being countersunk to accommodate said enlargements and to form inclined projections on the inner sides of sai d members surrounding said openings for engagement; with the belt.

1i. A device for connecting the `adjoining ends of a belt, comprising` two opposing` members extending across the junction of said belt ends and having openings; securing means extending between and connecting` said members and passing through the belt and the openings in said members; enlargementsy at the ends of said securing means, said members being countersunk to accom mod ate said enlargements and to form inclined projections on the inner sides of said members for engagement with the belt; and

inwardly extending belt engaging projections on said members intermediate said iirst mentioned projections.

5. A device for connecting the adjoining ends of a belt, comprising two opposing members extending across the junction of said belt ends and having openings; headed bolts passing through the belt and said openings; nuts threaded on said bolts, said members being eountersunl; to accommodate said nuts and the heads of said bolts, said nuts being formed to pass through the corresponding openings in said members; and extensions of reduced diameter on said nuts passing through the corresponding openings in said members.

G. A device for connecting the adjoining ends of a belt, comprising twoy opposing members engaging against opposite sides or' the belt 'and having openings; headed bolts passing through the belt and said openings; nuts threaded on said bolts, said members being countersunk to accommodate said nuts and 'the heads of said bolts, the eountersunk portions of said members engaged by the heads oit said bolts being formed to prevent relative rotation of said bolts.

7. A device for connecting the yadjoining ends et a belt, comprising two opposing members engaging against opposite sides 0f the belt; securing means having enlarged ends extending between and connecting said members and passing through the belt, said members having countersunk openings to accommodate said enlarged ends and the countersunk portions being surrounded with inwardly extending inclined projections which engage the belt, and the ends of said members being beveled at their inner and outer sides. j

8. A device for connecting the abutting ends of a belt, or the like, comprising tWo opposed plates lying on opposite sides of said belt and each extending across the abutment ol the belt portions, said plates being beveled on their outer and inner sides at the ends thereof whereby no substantial change in the plane 'faces of the belt is apparent, adjustable means provided With enlarged head portions for securing said plates together, said plates also being provided with registering openings which are surrounded with inwardly extending inclined countersunk portions to engage said belt and to seat the enlarged portions of said securing means.

In Witness whereof, l have hereunto subscribed my name.

enonen n. PURPLE.

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