Abstract: Tenter frame apparatus includes an endless chain for carrying tenter clips (A) on one side of a monorail (B) for positioning a web (W) for transport on a single pair of longitudinally aligned bearings (C) carried in horizontal alignment with the web (W), and for guidance on a stationary track (D) by a wear strip (E) first opposed wear pads (F) opposite the bearings and second opposed wear pads (G) at the top of the monorail. Since the bearings (C) do not engage drive sprockets at turnarounds impact and high loads are avoided. In some applications wear strips may be substituted for the bearings (C).

Abstract: Tenter frame apparatus includes an endless chain for carrying tenter clips (A) on one side of a monorail (B) for positioning a web (W) for transport on a single pair of longitudinally aligned bearings (C) carried in horizontal alignment with the web (W), and for guidance on a stationary track (D) by a wear strip (E), first opposed wear pads (F) opposite the bearings, and second opposed wear pads (G) at the top of the monorail.

Abstract: An oven for treating a moving web has, within each zone (A), an incinerator (C) with a long holding period for receiving combustion products directly from a burner (B) and mixing them with process exhaust air from nozzles applying heated air to the web, and passing the products of the incinerator to a heat exchanger (E) for heating air from the nozzles prior to return of the heated air thereto.

Abstract: Apparatus is illustrated for limiting the movement of tenter frame rails in order to avoid damage, particularly to chains, resulting from excessive movement which includes a spring biased plunger valve carried by the rail on one side of a rail junction, while the other side of the junction carries a member having a predetermined surface for actuating a switch when the member moves to an extreme position where it can no longer support the plunger against the resilient force of the spring, causing a switch to be activated to deactivate the motor imparting transverse movement to the rails.

Abstract: A tenter frame is illustrated wherein a chain is fabricated by press fitting a pin receiving bushing constructed of Vespel and the like into a steel bushing and then boring a pin receiving opening therein and utilizing wear strips constructed of Vespel in a dovetail configuration opposite the tenter chain providing a lubrication free tenter wherein the chain may be tensioned without excessive stretching. Also illustrated are lubrication-free tenter-clip jaw pivot bushings.

Abstract: A tenter clip is disclosed having a jaw which is pivotally mounted in an intermediate portion on an upper member of a housing which extends inwardly over a lower plate wherein repair of the wear points is facilitated by providing a central bushing pressed into the jaw for receiving a pin upon which the jaw is pivoted. An outwardly extending fixed controller is carried by a depending gripping portion of the jaw, and a transverse slot opens in a lower edge of the gripping portion removably receiving a gripping blade.

Abstract: A tenter frame is illustrated wherein a chain is fabricated by press fitting a pin receiving bushing constructed of Vespel and the like into a steel bushing and then boring a pin receiving opening therein and utilizing wear strips constructed of Vespel in a dovetail configuration opposite the tenter chain providing a lubrication free tenter wherein the chain may be tensioned without excessive stretching.

Abstract: A tenter clip is illustrated having a compressible shoe having a convex lower surface horizontally disposed for presenting a maximum flat gripping area especially useful in manufacturing plastic film and the like.

Abstract: An improvement for casting machines is provided which assures a constant thickness and density of extruded material by varying the speed of nip forming rolls.

Abstract: An improvement for casting machines is provided which displays a correct nip measurement based on the relative position of cooperating rolls and the thermal expansion of the rolls.

Abstract: A tenter chain has been provided wherein a lubricating apparatus includes means for preventing the accumulation of old grease with the introduction of same on a subsequent lubricating operation as a result of the insertion of the elongated nozzle of a grease dispensing gun into a passageway leading to a grease receiving reservoir.

Abstract: An air knife is illustrated having an adjustable orifice which includes a flat plate forming a baffle on one side while on the other side a flexible plate is secured along one edge to the circular plenum offering a free edge portion which may be drawn inwardly with respect to the flat plate to form an adjustable opposite side of the orifice.

Abstract: A tenter frame drive is illustrated wherein auxiliary power operated means are provided to drive the sprockets at the entrance end of the chain runs, opposite the main drive at the exit end. The auxiliary drives remove the slack in the chains which normally occurs at the exit end opposite the point of driving engagement of the sprockets in such a fashion as to avoid chattering of the chain and tenter clips while providing for a division of the forces so as to some extent reduce the maximum tension in the chain, and at the same time insure sufficient tension for proper gripping of the web at the entrance end of the tenter.

Abstract: A lint screen assembly for use in an elongated oven is provided to protect the duct work and nozzles which direct heated air against the fabric being heat treated within the range and is constructed so as to afford winding means for cleaning and rolling up a single pass of fabric intermittently in predetermined lengths for supplying fresh screen material as required.

Abstract: An apparatus is illustrated for packaging narrow fabric such as webbing, belting, ribbon and the like into rolls or blocks for shipment wherein, a manually operated means which is normally out of engagement during a packaging operation may be urged from the hub side of the reel to dislodge the package for removal for doffing from the reel, and a power operated means is provided for moving a gripping flange into and out of packaging relation to the package mounting flange and hub.

Abstract: This invention relates to the bases of tentering clips pivotally connected to form an endless tentering chain and specifically to a structure wherein the sprocket rollers and the stress rollers are located upon the same shaft in vertical alignment.

Abstract: A filter for removing solids from a liquid of the type wherein a rotatable basket or drum has media inside straining from inside out. A power operated conveyor is mounted in the drum above the axis of rotation for receiving and positively removing solids. Thus, a liquid level is possible above the axis of rotation but below the conveyor so that a large filter area is in contact with the liquid while not interfering with the operation of the conveyor. A retractable scoop is provided for positively delivering the solids to the conveyor with an alternate sealing arrangement. A discharge ramp is carried adjacent an end of a baffle which extends above a liquid inlet upwardly toward the conveyor and is spaced from an inner wall of the drum to collect solids therebetween and accommodate the scoop for their removal. An improved means for equalizing the distribution of the liquid within the drum is also provided.

Abstract: A dryer range and the like wherein improved air flow means are provided for retaining heated air in contact with the web for maximum utilization of the heated air and for facilitating return of the spent air for reheating or for exhausting into the atmosphere to remove excess moisture or volatile material such as knitting oil and the like from the range. A pair of opposed air flow retaining baffles are carried by spaced plenums adjacent the fabric or web for thus retaining the air directed in streams against the web.

Abstract: A filter for removing solids from a liquid of the type wherein a rotatable basket or drum has media inside straining from inside out. A power operated conveyor is mounted in the drum above the axis of rotation for receiving and positively removing solids. Thus, a liquid level is possible above the axis of rotation but below the conveyor so that a large filter area is in contact with the liquid while not interfering with the operation of the conveyor. A retractable scoop is provided for positively delivering the solids to the conveyor.

Abstract: This invention relates to gate type tentering clip with pivotally mounted jaw in which the jaw is provided with a new and novel pivoting movement and the method for making the same.