Patent GB-692832-A (GB)
Title: Hat pouncing machine
IPC: A42C1/06
Filed: 1951-04-03
Abstract: 692,832. Hat pouncing machines. DORAN BROS., Inc. April 3, 1951 [April 3, 1950], No. 7745/51. Class 63. A hat pouncing machine has a pair of cylindrical sand paper covered pads which are oscillated about their longitudinal axes, which are parallel to the face of the hat brim. The machine, after initial setting, is started on a predetermined number of cycles by a single control lever 50, Fig. 2. A tower 48 mounted on a casting 98 is pivoted about a shaft 158, Fig. 7, and is moved to the operative position when the control lever 50 rotates its attached control shaft 182, Figs. 7, 10, moving a lever 184 to the left, Fig. 10, and thus allowing a controlled turning of the shaft 158 by a spring 176 as a roller 188 on an arm 186 fast to the shaft 158 runs in a cam groove 184a. The hat support 46 is mounted on a shaft 78, Fig. 7, in the tower 48, and is driven from a motor 120, Fig. 4, through a pulley 128, shaft 134, worm 152, Fig. 7, gear 156, shaft 158, worm 166 and pinion 102. Shaft 158 also drives, through reduction gearing and clutch means, a pin 266 which ends the cycles of the support 46 by contacting a roller 265 and closing a switch 262 to a solenoid 240, Fig. 4. The number of revolutions of the support 46 can be set by altering the original spacing of the pin 266 and roller 265 by means of a knob 54. The pouncing pads 42, 44 are mounted on shafts 374 and 404 respectively which are always at right angles to a plate 62, Figs. 4, 13, and which are given an oscillating motion by cranks on a shaft 332 driven by the motor 120. The shaft 374 is moved to and from an operative position by a toggle connection 488 to a link 420 attached to an arm 196 on the control shaft 182. When in the operative position, pressure is transmitted to the pouncing pads through the toggle connection 488 from a bar 450 which can be adjusted by a knob 52. The pads 42, 44 are covered with sandpaper fed over them from rolls 512, 513, Fig. 2, by a ratchet mechanism operated by the automatic closing of switch during part of the operating cycle. The relative inclination of the faces of the pads 42, 44 can be adjusted to give pouncing action over various shaped contact areas on the brim. In operation, after setting the pressure of the pouncing- pads by knob 52 and the number'of cycles the hat support is to make by knob 54, an operator places a hat on a block 45 and starts the machine by the control lever 50. The tower 48 then moves to the operative position followed by the pads 42, 44. The pin 266 contacts the roller 255 after being driven through its pre-set spacing and closes the switch 262 to the solenoid 240, Fig. 4, which initiates turning of a shaft 218 that is completed by a spring 222, as an arm 224 passes the centre position. Shaft 218 acts through linkage to turn the control shaft 182 which returns the pads to the inoperative position and turns lever 184, Fig. 10, and through arm 186, shaft 158 thus moving the tower 48 to the inoperative position. At the same time, a cam 282 is turned by a roller 328 on arm 186, to return the pin 266 to its initial position. Vanes are attached to a pulley driven by the motor 120 to blow through an opening 65b, Fig. 2, to keep the work support clean.