Patent GB-191423224-A (GB)
Title: Machine for Constructing a Laminated-cohesive-interwound Fabric Band.
Inventor: SUBERS LAWRENCE ALONZO
IPC: D04C1/00
Filed: 1914-11-28
Granted: 1915-12-28
Abstract: 23,224. Subers, L. A. Nov. 28. Compound fabrics; coating webs.-Relates to a machine for constructing an unwoven laminated tubular fabric band consisting of a series of fibrous bands interwound so as to cross one another at predetermined angles. A standard B<15> supports a tube B<8>, Fig. 12, the end of which carries a flat tubular mandrel A; tubular supports T<3> for flat tubular mandrels A<1>, A<2>, which run parallel on either side of the mandrel A, are also carried by the standard B<15>. The standard B<15> further carries a series of supports B<14>, upon which are mounted eccentrically adjustable spindles for ball-bearing rollers B<10>, upon which concentrically-arranged spool-carriers B, B<1>, B<2>, B<3> are carried and rotated alternately in opposite directions by suitable bevel-gearing on a shaft B<16>. Spindles permitting of sliding adjustment are mounted on the spool-carriers and carry spools C of fibrous bands which are drawn off the spools under tension exerted by spring arms N<20> and thence pass over rollers C<1>, between spring-pressed flattening-rollers R<20>, R<22>, to rollers C<3> carried at the outer extremities of guide-arms C<4>, which are supported by adjustable standards U on the spool-carriers. The arms C' of each spoolcarrier support at their inner extremities series of concentric guide-rings F<5>, F<6>, F<9>, over and under which the fibrous bands are conveyed in suitable channels therein to the mandrels about which they are wound. The fabric band thus formed is drawn over the mandrels through a drying-device comprising an inner chamber Z, Fig. 13, having adjustable gates at either end, and from which air may be exhausted by a pipe Z<1>, and an outer heating-chamber Z<2> having inlet and exhaust pipes Z<3>, Z<4>. Thence the fabric band is drawn through a chamber G for coating and impregnating it with rubber solution or the like. This chamber G is provided at either end with adjustable gates F<22>, F<23>, Fig. 16, of which the upper one F<22> is spring- controlled. A chamber G<1> communicating with the chambers G at G<2>, G<3> allows for the return flow of coating-liquid collecting at the exit end of the chamber G, and a pipe G<5> having a glass cap G‹ permits of inspection of the level of the coating-liquid. In order thoroughly to impregnate the fabric band, the mandrels within the chamber G are provided with widened portions a<2> having openings a<1>, Fig. 18, to separate the fibrous bands forming the fabric and allow the coating-liquid to pass between them. Strips of rubber or the like are fed along the hollow mandrels, and as these leave the coating- chamber, the outer mandrels A<1>, A<2> terminate in portions which are curved about the inner mandrel and the fabric band thereon, as shown in Fig. 19, so that the strips of rubber issuing from the mandrels A<1>, A<2> are wrapped around the fabric band on the central mandrel A, from the end of which a core of rubber issues into the central fabric band. The completed band is drawn off the mandrels by a pulling-device comprising a series of driven rollers P increasing slightly in diameter from the inlet to the exit end of the device, and a pressure roller P<12> serves to flatten and consolidate the band as it enters the pulling-device. The band is stored on a spool S driven by friction disks S<9>, and a band of non-adhesive material S<1> is interwound therewith. The spool-carriers, pulling- devices, and storage spool are driven by suitable gearing from a main shaft L, and means are provided for varying the gearing and thereby the rotary speed of the spool-carriers.