Patent GB-190804369-A (GB)
Title: Improvements in or relating to Mechanism for Arranging or Assorting Nails.
Inventor: BOULT ALFRED JULIUS
Filed: 1908-02-26
Granted: 1909-03-26
Abstract: 4369. Boult, A. J., [United Shoe Machinery Co.]. Feb. 26. Nailing.-A nail-assorting mechanism of the type described in Specification No. 14,724, A.D. 1902, comprises a duplex clutch - device arranged so that the operation of one member connected to the mechanism for reciprocating the raceway to couple it with, or uncouple it from, the driving-member also couples the driving-member with, or uncouples it from, a member connected to the means for rotating the magazine. The machine is also arranged so that operation of the device for discharging nails from the raceway suspends the reciprocation of the raceway by uncoupling the clutch-member connected to the raceway-reciprocating mechanism. The driving-pulley 72 and a worm 84 are loosely mounted on the main shaft 26 which drives the-raceway. This worm drives the shaft 101, which operates the rotary magazine and the nail-discharging device. A friction disk 88 is slidingly keyed to a tubular extension of the worm 84, and, by means of a hand-lever 92, may be engaged with the driving-pulley 72. The flanged inner end of a sleeve 74 limits the outward motion of the pulley 72, which carries spring-pressed pins 83 bearing thereon to maintain engagement between the members 72, 88 when the third member 78 is withdrawn. This member 78 forms part of a sleeve slidingly mounted on the sleeve 74 and having, radial slots at its outward extremity engaged by a key 80 connected to the shaft 26. The member 78 may be withdrawn from engagement with the driving-pulley by a forked arm 146 pivoted to a ring loosely mounted in a groove on the sleeve attached to the member 78, so suspending the reciprocation of the raceway. To start the machine, the hand-lever 92 is freed by disengaging its detent 94, and is moved to bring the members 88, 72 into engagement, which operation also engages the pulley 72 with the member 78, thus reciprocating the raceway and rotating the magazine. The nailreceiving pockets consist of cooperating grooves in fixed and hinged bars 156, 158, which serve to clamp the nail-tubes 164. To enable withdrawal of one or more nail-tubes without disarranging the others, they are also held by a helical spring 166. The nails, after traversing the raceway, are stopped by the stop-plate 56 and rest on a rotatable naildischarging device 40, which is operated in the following manner. The shaft 101 carries a cone 109 and a disk 102 loosely mounted on a sleeve 104 adjustably clamped to the shaft by a split collar 106. A spring 112, the pressure of which may be adjusted by the collar 106 screwed on the sleeve 104, maintains frictional contact between the cone and the disk. The cone 109 is rotated, as long as the clutch members 72, 88 are in engagement, by means of a pin 110 fixed to the cone and passing through the collar 106. The disk 102 has a camface 114 engaging the lower end of a lever 118 connected to the nail-discharging member 40, and is normally prevented from rotating by means of a spring-pressed rod 128 engaging a lug on the periphery of the disk. A cam-groove 152 in the rear face of the disk 102 is arranged to operate a crank 150 connected with the forked arm 146. To discharge a row of nails, the rod 128 is withdrawn by any suitable means when the disk 102 rotates, causing the lever 118 to rock the member operating the crank 150 to withdraw the clutch member 78 to stop the raceway. Simultaneously, stops 136 are caused to fall upon the row of pa Is immediately behind those on the member 40 to retain them. During the latter part of the revolution of the disk 102, the parts 40, 78 are returned to their former positions. The magazine 176 comprises a number of shelves 182, which are arranged at various angles with its interior surface, so as to spread the nails transversely across the raceway. Spirally-arranged strips 183 feed the nails forward on to these shelves. The magazine has two flanges 178, 180, the former of which is engaged by a flared groove on a driving-roller 172 and a supporting-roller 174, while the latter is engaged by a groove in the roller 174 only. Contact between the magazine and the driving-roller is thus restricted to the flange 178, to prevent distortions of the magazine from forcing the magazine off the driving-roller. To adapt the machine for use with nails of various sizes, the nail stop-plate 56 is adjustable by means of racks and pinions 66, 60, a graduated disk being furnished on the operating- shaft 60. The nail-reversing plate has similar adjusting means. The upper portion of the race. way has a rearwardly extending guard-plate and side wings.