Abstract: A pair of similar U-section clips each have a pair of legs secured to a respective belt end and a plurality of spaced knuckles that are interleaved to form a transversely extending passage. A coupling rod extending through the passage and interconnecting the clips has a relatively soft and bendable core pin and a helicoidal wrap of a wear-resistant hard material surrounding and directly engaging the pin and engaging the clip knuckles. The wrap can be made of an austenitic manganese steel and the pin can be a length of highly flexible steel cable.

Abstract: A connector for securing together two belt ends has a pair of similar U-section clips each having a pair of legs secured to the respective belt end and a plurality of spaced knuckles. The knuckles are interleaved to form a transversely extending passage, and a connector rod extends through the passage and interconnects the clips. The rod is made of a hard austenitic manganese steel.

Abstract: An apparatus for securing a U-shaped clip to the end of a belt with a staple has a die having a seat shaped to fit a belt end over which is fitted the clip, a presser head displaceable transversely toward and away from the die and having a passage holding the staple, and a plunger displaceable toward and away from the die in the passage of the presser head. Respective piston-cylinder units connected to the presser head and plunger and are pressurizable to displace same toward the die. A hydraulic pump supplies fluid under pressure to a multiport valve connected to the piston-cylinder units for first pressurizing the presser unit to compress the clip on the belt end and then for pressurizing the plunger unit for forcing the staple through the belt end and clip.

Abstract: An apparatus for stapling a belt-connecting clip fitted to a belt end has a crimping die, a housing fixable relative to the crimping die and forming a vertical guide, and a hold-down device engageable with the clip on the belt end on the crimping die, having an outer guide ring vertically slidable in the housing, and forming a vertically throughgoing guide bore adapted to hold staples engageable through the clip and belt end on the crimping die. A penetrating die has an extension projecting vertically downward through the guide bore and engageable with the staples therein. A spindle/nut mechanism in the housing can vertically displace the penetrating die between an upper position with its extension above and out of contact with the staples, clip, and belt end and a lower position engaged down on the staples and forcing same through the clip and belt end and against the crimping die.

Abstract: A belt joint is formed by a pair of U-shaped clips joined to respective belt ends and has interleaved bights and a rod extending along an axis through the interleaved bights of the clips to connect the belt ends together. The clips are provided inside the bights in contact with the rod with a lining of a low-friction material. This lining can be a metal alloy, for instance one containing copper such as bronze. Alternately it can be a plastic, for instance polytetrafluorethylene.

Abstract: A clip-mounting machine secure a clip by at least one rivet to a belt end. The clip has front and back legs each formed with a throughgoing hole and adapted to embrace the belt end with each leg engaging the respective belt face and a U-shaped bight interconnecting the legs. The rivet has one end formed as a head with an outwardly directed end face and an opposite free end formed with an oppositely directed end face centrally formed with a generally conical recess. The machine has a front jaw formed with at least one guide passage adapted to hold the rivet, a holder on the front jaw for retaining the front leg of the clip thereon with the respective hole aligned with the passage, and a back jaw displaceable between a closed position relatively close to and engaging the back leg of the clip whose front leg is in the holder to compress the belt end between the legs and an open position spaced from and not engaging the clip in the holder.

Abstract: A U-shaped clip has a pair of legs each formed with two holes and with a rearwardly open notch and a bight joining the legs. A stapling apparatus has a die part having a seat shaped to fit one of the bights and having an upstanding guide web snugly engageable with the bight and a forwardly pointing centering wedge engageable in the notch. The apparatus also has a presser part displaceable toward and away from the die part and having a passage in which a staple engaged in the holes of the other leg fits complementarily, and a plunger displaceable toward and away from the die part in the passage of the presser part so that, when the clip is fitted over a belt end and to the die part, depression of the plunger forces the staple through the belt end and through both legs of the clip.

Abstract: This method relates to the production of connectors each embodied by a row of substantially U-shaped clips formed in their curved part with a row of regularly spaced-apart apertures which separate the hinge elements from one another. The following metal deep drawing and pressing operations are performed consecutively in the central part of a metal strip, forming an aperture of reduced cross-section in the center of the place intended for each aperture required to be present between two hinge elements; widening each such aperture and pressing in the edges to form a collar which projects from a surface of the strip; bending the sides of each collar around on to the corresponding surface of the metal strip; and bending the strip round into a U-shape by the surface towards which the collar edges have been bent round being inwardly directed.

Abstract: A seal fitted between two sections of a conveyor belt is constituted by a member of resilient material having a generally U-shaped cross-section which can be placed astride the end portion of a belt section to be assembled, beneath the belt-fasteners of the corresponding row of a coupling device. The web of the seal has a series of transverse cut-out portions so arranged as to receive the end portion of the hinge-knuckle of one of the belt-fasteners of the oppositely-facing row and to delimit a corresponding number of narrow strips which are intended to be applied against the coupling-pin. Each strip has the shape of a loop forming a projection opposite to the side which is to be applied on the coupling-pin. Thus the loop can be compressed or stretched-out to a greater or lesser extent according to the thickness of the conveyor belt.

Abstract: Each belt connector or each clip is substantially so U-shaped as to be engaged with both sides of the corresponding edge of a conveyor belt (T) in order there to be secured by means of a U-shaped fixing staple or cramp of metal wire, whose arms are pressed through apertures in the bowed parts of each clip and through the strip between them. In the bowed part of each clip, to receive the staple ends, each aperture disposed opposite a tine of such a staple is connected, by way of a groove or channel or the like contrived in the outside surface of this same zone, to another aperture through which the corresponding tine can be led. The same can therefore be returned to inside the clip in order there to be pressed again into the conveyor belt or to engage between the same and the corresponding bowed part of the clip, something which occurs automatically when the staple ends are bent around and pressed against an anvil on which the clips are supported while the staples are driven in and secured in situ.

Abstract: A stapler apparatus for fastening junction staples (2) on one end of a conveyor belt (1) comprises a working head (10) slidable along a guide plate (7) provided for guiding the fastener clamps (4) of the staples to be fastened on one end of the conveyor belt (1). The working head (10) comprises a punch (13) for driving-in the clamps (4) and a mobile die (11) for folding down the clamp spikes. The support (25) of the die (11) and the punch (13) are driven through a sliding member (22) slidable inside the working head (10), this member (22) being driven by the piston (23) of an actuating cylinder (24). The sliding member (22) comprises two separate cams (33 and 36) acting respectively upon the support (25) of the movable die (11) and upon the clamp-driving punch (13) , the arrangement and the profile of these cams being such that the first cam (33) will act at first for lowering the movable die (11) before the second cam (36) acts for raising the clamp-driving punch (13).

Abstract: A hinge-pin for coupling two rows of belt-fasteners mounted to the ends of a belt-conveyor or the like is constituted by a series of metallic elements fitted in succession around a flexible axial core. Each element has the approximate shape of a semi-cylindrical rod and carries two projecting lugs at each end. These elements are placed on each side of the flexible core in two inverted rows and in staggered relation from one row to the next. The projecting lugs of both ends of each element are engaged in corresponding cavities of the opposite elements of the other row. The different elements disposed in succession are thus interengaged in the axial direction with a possibility of limited displacement of the elements in the other directions, thus endowing the hinge-pin with the requisite flexibility.

Abstract: A portable apparatus is provided with an operating head slidably mounted on a guide plate for successively fastening stirrup-links on the end of a conveyor belt via staples. A movable die within the operating head for clinching the staple ends has a first portion located opposite to the staple-inserting punch and provided with grooves for initial clinching of the staple ends. A second portion of the die is provided with grooves for final clinching of the staple ends of the following stirrup-link which have already been subjected to initial clinching. A second punch penetrates into an opening of the staple-guiding plate in order to arrest the operating head in each predetermined position and to serve as an anvil for bearing against the head of each staple at the time of final clinching. The second punch is actuated by a lever which also actuates the stepping-motion ratchet mechanism while another lever controls the operation of the staple-inserting punch and the operation of the die.

Abstract: In a general-purpose connector for flat electric cables and pairs of separate conductors, an insulating connector body has two ducts for receiving the cables to be connected and two connecting-strips which are capable of displacement opposite to both edge walls of the ducts. An end-cap engaged on the connector body serves to press the two connecting-strips into the insulating sheath of the two cables in order to effect the desired connections. Two detachable supporting-bars of insulating material are placed within the ducts and are provided with edge channels. The connector can be employed for connecting two pairs of separate conductors placed within the edge channels or for connecting two flat cables engaged directly within the ducts after withdrawal of the supporting-bars.

Abstract: A flexible hinge-pin for coupling two complementary rows of fastening staples on the opposite ends of closed-loop conveyor belt or the like comprises a flexible central core such as a steel cable. The core is surrounded successively by an intermediate plastic sheath and a tubular outer jacket formed by twisting one or a number of strands of wire, either in the same direction of twist as the core or in the opposite direction. The intermediate sheath can be of plastic material filled with grease which is capable of flowing under the action of the relative movements of the hinge-pin components at the time of flexural deformation of the pin in order to ensure that a fraction of the grease spreads over the surface of the pin.

Abstract: In a telecommunication line, a cable-attachment spacer for securing one or a number of suspended cables to a suspension cable comprises a male component and a female component forming passageways for the cables when assembled together. The female component has at least two spaced slots disposed vertically in superposed relation and having their openings on at least one side of the component. One slot is provided for the suspension cable and at least one slot is provided for one or a number of suspended cables. The corresponding male component comprises a finger which is brought into position in front of the bottom ends of the slots, thus confining the cables placed within the slots.

Abstract: A device for coupling the hinge-knuckles of two complementary series of belt-fasteners fixed respectively on each edge of a conveyor belt is constituted by a series of independent rod segments. The maximum length of each segment corresponds to the length of the hinge-knuckles of two opposite belt-fasteners. The rod segments have relatively displaced portions each corresponding to the width of one hinge-knuckle and are thus stationarily fixed in the longitudinal direction after positioning. The different segments are initially joined together by means of at least one temporary coupling member which is readily shearable at the time of initial use and troughing of the conveyor belt.

Abstract: This apparatus for fixing a row of assembling U-shaped fasteners to the end edge of a conveyor belt or the like by means of a pair of likewise U-shaped staples for each fastener, the staples having pointed ends adapted to pass through the fastener arms and the belt end edge disposed between these arms, comprises a fixed anvil underlying a vertically movable cover having a row of apertures corresponding in number to the fastener and matching the configuration of the staple pair, means for lowering the cover and cause the staple points to emerge partially from the fastener and penetrate slightly into the belt material, and a punch for driving the staple ends to a first partially bent condition obtained by the engagement of these points into skew-bottomed grooves formed in the anvil, whereafter the cover is raised and a hinged plate is tilted to its operative position in which it covers the anvil grooves, and finally the cover is lowered again towards the anvil in order to cause the staple points to be bent unti