Abstract: A spiral for interconnecting ends of endless belt segments with terminal fabric loops using a pintle. The spiral comprises a series of loops having inverted U-shaped loop portions extending in a transverse direction of the spiral. The loop portions have legs spaced apart from each other for passage of the pintle therebetween, and uppermost heads bending from and extending between the legs. U-shaped loop linking portions extend diagonally with respect to a longitudinal direction of the spiral, between lower ends of the legs of successive loops. The loop portions are parallel with and spaced from one another by a definite pitch distance matching with the fabric loops and adapted to define openings for interdigitation with a like spiral to form a channel for the pintle without longitudinal deformation of the spirals during the interdigitation.

Abstract: The spool assembly for storing and handling a wire or cable, especially a pintle, has a spool that is annular in shape and devised to define a radially outwardly opened rim of U-shaped cross-section in which the wire can be wound. At least one of the side walls of this rim has an outer edge with teeth formed in it. The spool is freely mounted and retained in a spool-receiving member having a surrounding wall with an outlet through which the wire may exit. A brake is provided to prevent the spool from rotating when such is not required. The brake comprises a tiltable arm extending tangentially close to the spool. One or more teeth project from the arm towards the periphery of the spool so as to engage the teeth of the spool and thus prevent the spool from being rotated unless the arm is lifted up. One or more stoppers may also be provided to lock the wire. The assembly is preferably made of plastic material. It is very simple in structure and very handy to use.

Abstract: A pintlepin is disclosed, for use to connect together adjacent ends of segments of an endless belt. The pintlepin has a pintle consisting of at least one filament having an outer diameter substantially identical to the diameter of the tubular opening formed by the intermeshed loops used as a seam at the adjacent ends of the segments to be connected. It also has a leader made of a rigid or semi-rigid material. This leader has an outer diameter smaller than the outer diameter of the tubular opening. It acts as a guide to facilitate insertion for the pintle through the tubular opening formed by the loops. A swager connects together the pintle and the leader. This swager consists of a tubing having a front portion and a rear portion in which the rear end of the lader and the front end of the pintle are respectively swaged.

Abstract: A spool assembly for pintle or other kind of cables, which is simple and efficient in use and is advantageously made of a very small number of standardized elements that can be assembled in a plurality of ways to meet any specific requirements, such as, for example, the need for a handle, the need for having a pair of spools immediately available to the user, or the need for a stopper to rigidly hold the external end of the pintle. The assembly has one or two cylindrical spool in which pintles may be wound. It also has one or two cylindrical spool receiving members having a cylindrical peripheral wall, a flange preferably in the form of a ring projecting radially inwardly from one of the edges of the peripheral wall to hold the spool, a plurality of hooks integral to and projecting from the other edge of the peripheral wall at given intervals, and an opening provided in the peripheral wall to allow the cable wound in the groove of the spool to be pulled out.