Patent GB-956045-A (GB)
Title: Hand operated tape embossing tool
Inventor: TRAVAGLIO DALNY
IPC: B41J3/39
Filed: 1961-08-09
Abstract: 956,045. Cutting and embossing pliers. DYMO INDUSTRIES Inc. Aug. 9, 1961, No. 28716/61. Heading B4W. [Also in Division B6] Tape feeding and letter spacing.-A hand operated device for embossing selected indicia on tape, e.g. polyvinyl-chloride tape, comprises a channel-shaped body 12 and a handle 19 on the open side of the channel, a tape-feed roller 28 journalled in the side walls of the body with its periphery passing adjacent to the top wall 31 of the body whereby rotation of the roller will feed tape 22 from a supply 13 and between the roller 28 and wall 31 to the die members 64, 66, and means interconnecting the handle and roller for rotating the roller upon movement of the handle away from the body. A spring 32 holds the tape against the roller 28. The handle 19 is pivoted to the body 12 at 27 and has pivoted thereto at 49 a pawl 47 normally held by a spring 51 in engagement with a ratchet-wheel 46 on the shaft 29 of the feedroller. Movement of the handle towards the body causes a character to be embossed on the tape as described below and subsequent reverse movement of the handle causes the tape to be fed one step forward by the roller 28 and ratchet mechanism 46, 47. A link 52 pivoted to the handle 19 at 49 has a slot through which the shaft 29 passes, and limits the downward movement of the handle. The handle may be retained in partially-closed position by operation of an extension 56 on the pawl 47 to release the pawl and engage a hook 79 on the pawl with a pin 81 on the body. The handle, is released by moving it towards the body without sufficient pressure to emboss, and so that the hook 79 leaves the pin thus allowing the pawl 47 to re-engage the ratchet wheel 46. When the pawl 47 is disengaged, the roller 28 may be rotated by an external knob 43 to feed the tape without embossing. Back-spacing may be effected by releasing the pawl 47 and turning the roller 28, by means of the knob 43, Fig. 6, in an anticlockwise direcion, Fig. 3, a detent pawl 57, Fig. 4, engaging the ratchet teeth 46 enabling by its audible clicks the amount of spacing to be determined. Guides.-The tape 22 from the supply 13 passes over guides 37, 38, 39, the guide 39 having inturned lateral edges 41 to hold the tape against it. Type-wheels; index setting.-Embossing is effected by coacting dies on discs 64, 66 rotatably mounted on a shaft 63 so as to present a selected pair of dies to the tape. Both discs are made of moulded plastic, e.g. acetal resin, the upper one 64 having the characters 67 in intaglio and the lower one 66 having the characters 68 in relief. The disc 66 is slit radially between the characters, so that when the handle 19 is pressed against the body 12, a spring-pressed plunger 73, Fig. 6, is moved upwardly and moves the selected character 68 upwardly towards the corresponding character 67 to emboss the tape 22 situated between them. A marking on the upper die 64 registers with an opening 110 to indicate the dies in position for embossing. Cutting arrangements.-The tape projecting from the device may be severed between a blade 89, Fig. 8, fixed to the body 12 and a spring blade 91 attached at its lower end 96 to the handle 19. A lever 99 pivoted to the handle presses the blade 91 upwardly to cut, the blade returning to inoperative position by its resilience. Specification 856,111 is referred to.