Patent GB-310587-A (GB)
Title: Improvements in or relating to tape applying machines
IPC: A43D43/06
Filed: 1928-02-11
Abstract: 310,587. Glines, F. S. Feb. 11, 1928. Affixing tape. - A machine for applying adhesive tape to shoe parts and similar work is provided with (1) means for heating the tape electrically having provision for moving the tape out of contact therewith during a stoppage of the machine, (2) means for severing the tape on the completion of a piece of work by the operation of a pedal &c., the tape being severed at a point so that it is ready for application to the next piece of work, (3) an adjustable and removable work guide, (4) removable tape guides for tapes of varying width, and (5) reciprocating feeding and presser feet which are automatically moved out of operative position on the actuation of the tape-severing means, the presser being provided with an extension for engaging the work when first put on to the machine until the work is engaged by the presser in the normal way. (1) The tape is fed over a heater comprising a coil enclosed in a tube held in a recess in the upper part of the machine by a removable catch 180, Fig. 2. The upper surface of the heater is formed with a channel in which the tape lies, the channel being covered by a pivoted member 196 fitted with a loop 200 through which the tape passes. Normally, the cover is down, as shown, and the tane lies in the channel. During a stoppage of the machine, overheating of the tape is prevented by lifting the cover about its pivot 107. (2) The severing means consist of a pair of shears 25, 26, Fig. 1, the former being detachably fixed to a hlock 100, which is reciprocated by a lever 106 from a treadle when the tape is to be cut. The blade 26 is pivoted at 103 to the blade 25, the pivot being provided with a housing 120 for a roller 122 engaging a fixed cam 125. The shears are thus bodily depressed as they are moved into operative position, and the cutting stroke is given to the blade 26 by means of a cam 110 engaged by a roller 116 on the blade. The cut is effected close to the presser and in front of the feed bar. (3) The work guide comprises a pin 28, Fig. 5, mounted on a pivoted member 140, the pin being adjustable longitudinally of the member and held in its adjusted position by a screw 152. The member 140 is mounted under the base 20 and can be rocked to render the work guide inoperative by means of a handle 156. (4) The tape guide 23, Fig. 2. is formed with a web 70 removably attached to the feeder 21 and is chosen to suit the width of tape in use. It is provided with a pivoted member 74 which prevents backward movement of the tape. (5) The feeder 21, Fig. 2, having a normal forward and backward movement from the main shaft, is given a vertical movement by means of a rocking shaft 50 which is connected by all arm 59, and link 57, Fig. 1, to a block 55 which rides loosely in the forked end of the link 57 and is connected by a pin 54 and split collar 52 to the top of the feed bar 35. The presser 24 is mounted on the end of a rock shaft 82, Fig. 5, and has cross grooves on its lower face 85. To hold the work when first placed on the machine, the presser has a forward extension 87 with a depending pin 88; during normal operation. the thickness of the work under the presser renders the pin 88 inoperative. The presser is operated by an arm 90 on the shaft 50 engaging an adjustable stop 91 on the arm 81, which is under the influence of an adjustable spring 93. The presser and feeder are lifted from the work when the tape is cut by rocking the shaft 82, Fig. 5, on which the presser is carried, the extension 87 of the presser engaging the screw 33 on the feeder to lift the latter. The shaft 82 is rooked by the engagement of an arm 114 mounted thereon with a cam 133 carried by the block 100 which reciprocates the shears.