Patent GB-190215025-A (GB)
Title: Improvements in Embossing or Punching Machines.
Inventor: CASLER HERMAN
Filed: 1902-07-05
Granted: 1903-06-11
Abstract: 15,025. Casler, H. July 5. Stamping and embossing; punching.-Relates to machines for stamping or embossing strips of metal, paper, &c., and cutting off and punching pieces to form labels, name plates, &c. In an opening in the sloping top 2 of the casing is secured a cap 3 formed with a bearing for a shaft 5 carrying a type or die wheel 7 and slotted index-wheel 4 and an operating-arm 6, which moves over an index on the top 2. Facing the type-wheel 7 is a type-wheel 8, the peripheral flanges of the two wheels being formed with corresponding male and female types or dies. The wheel 8 is secured to a ring 9, rotating on a bearing 10 secured to a plunger 11 mounted to slide on rods 12 secured to the top plate 2. On the wheels 7, 8 are gear teeth, gearing with two rigidly-connected spur-wheels so that the type-wheels rotate in unison. When the type-wheels have been set, by turning the arm 6 to the required character on the index, the impression is made by operating a lever 20, on the shaft 19 of which is a toggle-arm 22 connected to the plunger 11 by a link. The shaft 19 is in bearings on a plate 18 carried by the rods 12, and extends out of one side of the casing. A spring 26 connected to an arm 25 on the shaft 19 tends to draw the plunger downwards, and separate the type-wheels. The strip of metal &c. 32 passes up through an opening 84, round a guide-roller 27, and between feed-rollers 28, 29 to, and between, the type-wheels. The roller 28 is driven by a ratchet-wheel, engaged by a pawl pivoted between a pair of plates 35 pivoted on the shaft of the roller. Pivoted on and between the plates 35 is a roller 38, and adjacent to it is a stationary roller 37. These rollers are forced apart, to operate the pawl plates and cause a feed movement of the strip as the wheel 8 moves up to the wheel 7, by a finger 40 pivoted on the plunger 11. A pin on the finger 40 engages a curved slot in one of the plates 35. The type-wheels are brought exactly to position, before the impression, by a sliding bar which is moved into engagement with one of the radial slots in the index-wheel 4. The bar is operated by a lever having a diagonal slot engaged by a pin on the plunger 11. When the desired characters have been embossed on the strip, the piece is cut off and falls through the wheel 8 into a shoot 72 leading to an opening 73 in the casing. The cutting and punching dies, shown in Fig. 11, consist of a fixed die 51 and a punch or cutter 49, having perforating-punches 50 for perforating the ends of the labels. The punch 49 moves in guides, and is operated by an arm on a rocking frame 61 having two rollers 63 engaging cams 60 on the adjacent ends of two shafts 54 extending one out of each side of the casing, and each provided with a lever handle 48. The punch may thus be operated by the handle 48 at either side of the machine. Flat springs 64 return the frame 61 and lift the punch 49. The movement of the shafts 54 is limited by arms 66 thereon engaging stop lugs, and the shafts are returned to normal position by springs 70. To prevent a too quick return, the arms 66 are connected to the plungers of dash - pots 71. An auxiliary feed-mechanism is provided in connection with one of the handles 48, to feed the end of the strip to position to receive an impression. This consists of a pawl 74, Fig. 9, on an arm 83 of the shaft 54, engaging the ratchet-wheel 33 of the feed-roller 28. This feeds the strip through two or more normal steps of feed movement, after the punch 49 has risen above the level of the strip.