Abstract: A pin tenter clamp for a tenter apparatus has a clamp base on which tenter pins are disposed. The clamp base is provided with a hinge about which a clamp top plate is pivotable. A resilient, elastomeric clamp pad is disposed on a side of the clamp top plate facing the clamp base and tenter pins. The clamp top plate is biased away from the clamp base to open the pin tenter clamp. Between the clamp top plate and clamp base is a stripper plate having openings through which the tenter pins may extend when the pin tenter clamp is closed. The stripper plate also has a resilient, elastomeric clamp pad having openings aligned with those in the stripper plate. When the pin tenter clamp is open, the stripper plate resides above the tenter pins. In use on a tenter apparatus, the present pin tenter clamp first holds the fabric to be stretched between the resilient, elastomeric clamp pads before the tenter pins may extend threrethrough.

Abstract: The invention relates to a conveyor chain for machines for tensioning lengths of material, with pairs of outer fishplates and pairs of inner fishplates flexibly connected by chain joint bolts and with support members for grippers or needle plates. The pairs of inner fishplates are supported by means of joint sleeves on the chain joint bolts, needle bearings are arranged between the joint sleeves and the chain joint bolts and ball bearings are provided on the outer peripheral surfaces of these chain joint bolts. These ball bearings are constructed like roller bearings with particularly thick outer races, and the outermost outer fishplates rest with a bore clearance on the chain joint bolts. This conveyor chain is distinguished by a simple and stable construction which requires little maintenance.

Abstract: The present tenter frame chain includes a plurality of links, each link including upper and lower interconnected loadbearing plates, and a low friction slide block sandwich between the upper and lower interconnected plates. The slde block is formed of material having a lower coefficient of friction than the interconnected loadbearing plates and includes a vertically disposed bearing surface located laterally outwardly beyond the lateral extent of one side of the upper and lower interconnected loadbearing plates. The vertically disposed bearing surface of the slide block contacts the bearing surface of the guide rail to reduce the frictional rubbing movement of the tenter chain against the vertically disposed bearing surface of each of the tenter chain guide rails as the tenter chain moves therealong.

Abstract: A chain conveyor of a fabric web stretching machine includes input and output sides of the machine, an endless roller chain having a forward and rearward running parts, chain links, chain bolts absorbing longitudinal chain forces, stretching devices disposed at each of the chain links, a guide rail disposed at the forward running part forming a support for horizontally directed transverse forces to be exerted on the fabric web, chain wheels disposed at the input and output sides of the machine forming transitions between the forward and backward running parts each having teeth engaging in the chain at respective longitudinal ends of the guide rail, a transverse force roller being associated with each of the stretching devices for transferring transverse forces, roller bearings on which the transverse force rollers are supported about a vertical axis coaxial to a respective one of the chain bolts, the transverse force rollers abutting an outer surface of the guide rail facing away from the fabric web, the toot

Abstract: The pin-nipper chain consists of holders detachably secured on links and is composed of two holder parts of U-shaped cross section. On the underside of one of the holder parts a slider is detachably fastened in a sheetmetal part. On an inner side of the other holder part a slider is enclosed, likewise detachably, also in a sheetmetal part. The other holder part is exchangeable for a holder part which is provided, instead of the slider, with a vertical axle on which a ball bearing is arranged.

Abstract: A chain for a tentering frame includes links which carry so-called tentering hooks and needles for holding a fabric web to a movable conveyor forming the tentering frame. Each link (9) carries an intermediate support member (7) which holds at its free end a journal pin (3) below the margin of a fabric web (1). The journal pin (3) supports an arched bail (2) in a tiltable manner for movement between a working position and a rest position. The bail carries at its upper free end a further journal pin (12) which supports a tentering hook (10) in a tiltable manner. The first journal pin (3) further supports a needle bar (13) which is tiltable with its needles into a fabric penetrating position or into an inoperative position. The needle bar (13) preferably has a flat surface which cooperates with the tentering hooks (10) as a counter-holder when the needles are in a rest position.

Abstract: Tenter apparatus for fabric web tenter machines comprises a hook body carried by a circulating conveyor, a tenter table fixedly connected to the hook body and serving as support for the fabric web edge, and a hook flap pivotally mounted on the hook body and biased towards the tenter table, such flap carrying a clamping strip directed towards the tenter table for firmly holding a fabric web edge and at least one other clamp member which is disposed spaced from the clamping strip on the side thereof remote from the fabric web and for which a corresponding recess is provided in the tenter table.