US1880474A - Wire fabric - Google Patents

Description

C. E. PINK WIRE FABRIC Oct. 4, 1932.

Filed July 51. 1931 INVENTOR ATTORNEYS Patented Oct. 4, 1932 CLARENCE E. PINK, CAMBRIDGE, MARYLAND WIRE FABRIC Application filed July 31, 1931. Serial No. 554,371.

This invention relates to conveyor belts 9r aprons constructed from spirally woven metallic fabric, heretofore found necessary in the manufacture to be constructed from alternate sections of rightand left-hand coils to prevent creeping of the belt or apron laterally when passing over pulleys or drums, as a belt or apron constructed from spirals all extending in one direction will 10 creep off a pulley or drum, due to each spiral when coming in contact with the curved surface of a pulley or drum receiving a screw action which is transmitted to the preceding coil by the coils hinging one upon the other, and the present invention has for the pri mary object, the provision of means for preventing the belt or apron from creeping {when constructed of coils all extending in the same direction and which permits the belt or apron to be more. readily constructed and at a much less expense and eliminates the heretofore necessary fasteners or ties for connecting the sections of the belt. X

Another object of this invention is the provision of rods forming hinges between the coils, so that when the coils adjust them-, selves to the curvature of the pulley or drum they will not exert a screw action upon the preceding coil consequently permitting the belt or apron to travel in a straight course without lateral creeping.

A further object of this'invention is the provision of the rods so arranged that they will provide an additional selvage within the usual outer selvage of the fabric to prevent the fabric from fraying or separating shogld the outer selvage become torn or dama e With these and other objects in view, this inventionconsists in certain novel features of construction, combination and arrangement of parts to be hereinafter more fully described and claimed;

For a complete understanding of my invention, reference is to be had to the following description and accompanying draw ing, in which Figural is a plan view, illustrating a woven wire fabric constructed in accordance with myinvention;

fied arrangement of hinge rods wherein said rods are located in endwise relation; and

Figure 6 is a fragmentary sectional view, illustrating the coils of wire fulcruming or hinging on the rods when passing over a curved surface. V

Referring in detail to the drawing, the

numeral 1 indicates a woven-wire fabric used 05 in the construction of conveyor belts or aprons and includes either right-hand or left-hand coiled strands of wire 2 woven one within the other to form the fabric and having the ends of the wires bent to form eyes or loops 3 7 adapted to interlock with each other to provide outer selvages 4 to each side edge of the fabric. By referring to Figure 1 it will be seen that in forming the selvages 4, the ends of pairs of coiled wires are bent over each other to provide the interlocking eyes or loops. The fabric thus formed contains flexibility by one coiled wire hinging relative to the other for following a curved surface, such as the periphery-of a drum or pulley 5 as shown in Figure 5. Each coiled wire when adjusting itself to the drum or pulley it hinges relative'and upon the preceding coiled wire, transmitting to the latter a screw action which will cause a gradual creeping of the 35 fabric laterally of the drum or pulley, and to prevent such action, rods 6 are provided 1 and on which certain of the coiled wires hinge,

preventing said wires from contacting or hinging upon each other and thereby transmitting to each other the screw action; Each rod 6 includes parallel leg portions 7 connected at one of their ends by a bight portion 8. The rods when assembled in the fabric are reversely arranged and each leg portion of each rod forms a hinge between a pair of. coiled wires- The rods are placed in the coiled wires prior to the forming of the outer selvages and when the latter are formed the rods will be held against endwise movement structed from a slngle length of material bent upon itself to provide parallel leg portions 11 connected at each end by bight portions 12 with the ends of the material located adjacent one of the bight portions. As shown in Figure 4 the rod 13 is similarly constructed to the rod 10 except the ends of material are located intermediate the ends of one of the leg portlons 14.

, In the illustration set forth by Figure 5 the rods 15 are arranged in pairs and in endwise relation to each other and are constructed similarly t0 the rods 6.

A belt or apron constructed from fabric made in accordance with theforegoing will travel in a straight course without lateral creeping when passingover a curved surface of a pulley or drum, as each coiled wire when adjustingitself to the curvature of the pulley or drum will hinge on a rod and not on the preceding coiled wire, consequently prevent ing one coiled wire from transmitting to the preceding coiled wire, the screw action developed in each coiled Wire when adjusting'itself to the curvature of the pulley or drum. While I have shown and described the preferred embodiment of myinvention, itiwill .be understood that minor changes in construction, combination and arrangement of parts may be made without departing from the spiritand scope ofmy invention, as claimed.

Having thus described my invention, what I claim is:

1 11 A woven wire fabric for conveyor belts, comprismg coiled wires one woven w1th1n the other to form a continuous flexible fabric and having the ends of pairs of said wires pivotally connected, hinge rods for the fabric and each including connected parallel portions extending through the coil of one wire of each pair, and with one parallel portion extending through the coil of the wire of the adjacent pair' of Wires, whereby hinges are provided throughout the length of the fabric with the coiled wiresheld from hingin on A v each other and with every other wire 0 the fabr1c hinging on a parallel portion of a rod.

2. A woven wire fabric for conveyor belts,

comprising coiled wires one woven within the other to form a continuous flexible fabric and fabric with the coiled wires held from hinging on each other and with every other wire In testimony whereof I aflix my signature.

CLARENCE E. rINK.

. having the ends of pairs of said wires inter-"f looped with each other to hinge the pairs of wires together and forming selvages to the edges of the fabric,-hinge rods for the fabric and each including connected parallel portions extending through the coil of one wire of each 'pair ofvwires, and with one parallel portion extending through the coil of the wire of the adjacent pair of wires, whereby hinges are provided throughout the length of the

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