Patent GB-190918305-A (GB)
Title: Improvements in Leather Staking Machines.
Inventor: SLOCOMB FRANK FISHER
IPC: C14B1/40
Filed: 1909-08-09
Granted: 1910-08-04
Abstract: 18,305. Slocomb, F. F. Aug. 9. Reciprocating - t o o l machines. - Consists of a staking-machine, the improvements being chiefly in the mounting and adjustment of the tools, in means for automatically gripping the skin during the working stroke, and in means for raising the bed. The machine is shown in plan and sectional elevation in Figs. 1 and 2, and the staking - head in Fig. 18. The head 30 is suspended by rods 28 from levers 21 carried by a chariot 11, to which the head is also linked by rods 76. The chariot is reciprocated in guides 15 in the framing by the connecting - rod 7, having a cam 10 which causes the levers 21 to rock and lower the tools to the position shown in Fig. 18 during the backward stroke. The holder 42, Fig. 18, of the front tool 43 is pivoted in the head at 37 and is adjusted by a set-screw 46 in an extension 32 of the head. A cushion 33 allows the tool to yield to varying thicknesses of the work 44. The back tool 52 is pivotally mounted on the head at 55, and has an extension 53 circularly slotted to take a pin 59 which is carried by a vertical rod 62, cushioned at 64, and an horizontal rod 68 carried by the head. The setting of the tool 52 is altered by hand by moving the pin 59 and the rod 68 by means of a milled nut 73 and lock - nuts 74, 75. The gripper 168, Figs. 1 and 2, is closed on to the edge of the table during each back stroke by a cam 134, yoke 139, connecting-rod 146, and a lever 150 shown in Fig. 4. The connexion between the rod 146 and the cam is made by a spring - supported roller contained in the yoke, and the effective length of the rod may be altered by means of nuts 148 to adjust the action of the gripper 168. The gripper lever 167 is actuated from the lever 150 through a latch 153, the slotted end of which normally engages a peg 155, Fig. 28, carried by an arm 156 loosely mounted on the spindle 157. This spindle carries rigidly the gripper lever 167 and also an arm, the end of which engages that of the arm 156 through a cushion 162, and so transmits motion to the gripper when the lever 150 is rocked. The gripping action may be suspended by raising the latch from the peg and so allowing a spring 169 to pull the arm 156 to an inoperative position. The sliding work - bed consists of a framing 85, Fig. 13, having projections 87 running in ways 90 on the support 104 and upturned arms 83, which are linked to the chariot by rods 81, Fig. 2. The apron 91 passes from the back of the bed 93 over an adjustable drum 92 and forward roller 94, Fig. 2, to the front of the bed 97, where it is fixed in front of the staking-bar 97<a>, Figs. 13 and 18. The supports 104 of the bed, apron, and rollers are slidingly mounted on rods 106, Fig. 2, on a table 108, which is pivotally carried by arms 109 and is raised to the working position by a treadle 130 and levers 118. The treadle is reversible, its stem 127, shown in plan in Figs. 1 and 25, being pivoted at 128 to the treadle lever 123 and having a pin 126 to engage the right or left hand arms 125 on the lever 123. The weight of the bed &c. is taken up by a spring 133, Fig. 2, attached to the framing. The bed may be raised beyond the limits obtainable by the treadle gear by means of a rotary cam 111, operated by hand or knee, which engages a similar cam 110 formed on an extension of the table, and is turned by means of arms 114.