Other

Charles Packaging Corporation

Amesbury Industries, Inc.

Robert C Blezard

Robert D Evans

A machine having multiple stationary weighing and filling platforms serviced by parallel straight line infeed and discharge container or material conveyors. Positive grippers transfer the containers or other material to be weighed transversely to stationary weighing and filling platform and the same or similar grippers transfer the containers from the platform to a parallel discharge track. This eliminates centrifugal forces, increased throughput reduces floor space and permits greater sensitivity in weighing since there is no inherent motion of vibration at the weighing station.

Straight line fill-to-weight machine

A machine having multiple stationary weighing and filling platforms serviced by parallel straight line in-feed and discharge container or material conveyors. Positive grippers transfer the containers or other material to be weighed transversely to stationary weighing and filling platform and the same or similar grippers transfer the containers from the platform to a parallel discharge track. This eliminates centrifugal forces, increased throughput reduces floor space and permits greater sensitivity in weighing since there is no inherent motion or vibration at the weighing station.

Straight line sorting and/or fill-to-weigh machine

A transfer device for use in treating a work product is disclosed, in which a first gripper assembly rotates about a pivot point located between an input conveyor and a station, and a second gripper assembly rotates about a pivot point positioned between the station and an output conveyor. The rotation of each gripper assembly may be accelerated or decelerated at predetermined points in the rotation cycle by use of a cam, roller, and linkage mechanism.

Article handling and weighing apparatus

Weatherstripping is produced continuously by two or more spaced apart tufting heads, which may be operating at different stitch rates. The or each strip of weatherstripping comprises at least two rows of tufts sequentially inserted by two tufting heads. Heated dies may be located between the tufting heads for transforming rows of tufts inserted by the first tufting head at least partially into film to form barrier fins. The knuckles of the tufts are flattened, a secondary backing applied, and then individual strips of weatherstripping separated by ultrasonically slitting, all as a continuous process enabling weatherstripping of various constructions to be efficiently and economically produced by tufting.

Tufting process and apparatus for manufacturing weatherstripping

A method of manufacturing weatherstripping comprises forming a row of pile fiber on a substrate, compressing the row widthwise between a pair of dies, heating the row while so compressed, and cooling the heated row. In this way the sides of the row can be heat set for appearance, or formed into a continuous film, or the whole row converted into a barrier fin in the form of a film, depending upon the degree of compression and the temperature. Preferably the row is formed by tufting and the dies disposed immediately downstream of the tufting station. Pile fiber of conjugate polyethylene and polypropylene is advantageous in forming such films which are integrally attached to the substrate by pile fiber roots extending from the base of the film into the substrate.

Weatherstripping including method and apparatus for the manufacturing

A method and apparatus for tufting weatherstripping involves forming a barrier fin on a substrate, advancing the substrate with the barrier fin extending downwardly from the underside thereof past a tufter head, and passing the downwardly extending barrier fin through a channel in the needleplate of the tufter head while the substrate passes over and is supported by the needleplate. A row of tufts is then tufted along one or both sides of the barrier fin. The barrier fin may be formed by folding the substrate, adhering a strip to the underside of the substrate, or by forming a film from a row of previously inserted tufts. Preferably, the substrate is guided transversely to ensure alignment of the barrier fin or fins between the rows of tufts.

Tufted weatherstripping with barrier fin

A method of manufacturing weatherstripping includes tufting synthetic yarn into a primary backing fabric to form tufts on one side thereof and tuft 'knuckles' on the other side. Then, the tuft knuckles are contacted with a heated surface of controlled temperature to deform and flatten them, the combined thickness of the primary backing and the tuft knuckles thus being reduced and the tufts being more securely attached to the primary backing. Preferably, there is relative motion between the tuft knuckles and the heated surface to effect a smearing of the tuft knuckles onto the primary backing. The flattened tuft knuckles may form a thin continuous strip adhering to the primary backing and locking the tufts thereto.

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Harwich Port, MA, United States of America

Robert C Blezard