Patent GB-189902943-A (GB)
Title: Improvements in or connected with Stamping and Numbering Machines.
Inventor: HUMPHREY JAMES D
Filed: 1899-02-09
Granted: 1900-01-27
Abstract: 2943. Humphrey, J. D., and French, J. Feb. 9. Platen presses.-A stamping and numbering machine, used for imprinting numbers, letters, trade marks, or other characters or designs upon various articles, for cancelling, and especially for stamping boots and shoes, is shown in side elevation, partly in section, in Fig. 2. The printing-head B is carried by an arm C mounted upon a shaft c' and provided with an extension c<3> which is oscillated by means of a cam d on a cam-wheel D ; the wheel D is keyed to a shaft E which is driven by gearing from the driving-shaft G. The printing-head B is provided with a hollow shaft T, Fig. 6, upon which type rings t are loosely mounted. Each ring bears raised letters, figures, or characters t<3> and index characters t<4>, which are flush with or below the periphery of the ring. One ring t, which prints the fraction ¢, is provided with a hand-lever U which moves within a slot formed in the cover U' of the printing-head, and is used to oscillate the ring t<8> into its printing position. The ring t<8> is returned to its inoperative position by a coiled spiing, which operates upon the ring as soon as a pawl is forced back from the tooth or ring t<8> by means of pawls actuated by the oscillation of the ring adjacent to the ring t<8> ; the oscillation of the ring is effected by means of a slotted hand-lever U<2>, which is normally pushed outwards along its slot by a spring u<3>. The rings t are formed with slots t<6> adapted to engage with a detent v<8> fitted within a barrel V, which is free to slide within the hollow shaft T. The barrel V can be moved longitudinally by means of a handle V<1> secured to a pin v<8>, which is held within the barrel by a collar v<4>. A pointer g<8> on the handle V<1> serves to guide the operator when setting the type rings, which are normally held in position by spring-pressed pawls. When setting a type the operator sets the pointer g<8> opposite a disc having the desired type upon it, and then rotates the barrel V, through the necessary angle, by means of a milled head t<2> on the barrel. In a modified form ot printing-head, the index characters t<4> are arranged upon the milled head t<2>, and an additional pointer is fixed to the frame above the milled head. A plate A' is adjustably mounted upon a hollow standard R, which slides within a sleeve R<4> under the control of a spring, and is actuated by means of a treadle. An adjustable spring clamp S<3> serving to hold the article to be stamped, and a cushion S<7> for receiving the force of the impression, are secured to the plate. An adjustable gauge bar Y is secured to the machine framing. An inking-pad is mounted within a box H carried by an arm H<1>, which is connected by links h<2> to the arm C. The upper end of the arm H<1> is provided with an extension comprising a support i<1> and a slide i<2>, which can slide upon the support to an extent limited by a stop-pin i<3>, and is adjustable upon the support by means of a screw i<5> and nut i<7>. The slide i<2> is connected to a pin K' on the extension c<3> by means of a rod K carrying a roller m<2> which bears against a cam on shaft E. A spring k<2> serves to retract the inking- pad box after a forward movement of the latter. The printing-mechanism is thrown into or out of action automatically by means of a clutch pawl which is normally held in engagement with a toothed wheel, forming part of the driving-gear, and is actuated by a toothed bar P pivoted at p and oscillated by means of the plate A'.