Patent GB-190709653-A (GB)
Title: Improvements in and relating to Stamping, Marking or Numbering Machines.
Inventor: MERRICK FRANK WOODWARD
Filed: 1907-04-25
Granted: 1908-04-27
Abstract: 9653. Merrick, F. W. April 25. Platen presses ; numbering - apparatus inking- apparatus.-A machine for marking or numbering boxes, boots and shoes, linen and other articles has its main working parts formed as arms pivoted to a frame 1, which is open and unobstructed between the side frames 2, 3 to the rear of the work-support 5 to allow an imprint to be made upon a strip or article of any lengths The work-support 5, carrying the work rest or pad 7 of yielding material, terminates at its inner end in a transverse rocker 8, which is mounted in the side frames 2, 3 by taper centres 9 arranged to be adjusted to take up play or looseness and to adjust the work-support transversely with reference to the type-head. The taper centres 9 are centre-screws fitted to threaded holes, and their conical inner ends enter conical recesses in the ends of the rocker, accidental loss of adjustment being prevented by check-nuts 10. The work-support is sustained in its normal position by an adjustable spring-pressed pin 11, affording a yielding support, which increases the duration of the contact between the faces of the types and the article to be printed. The type-wheels 15 are carried between the cheeks 14 of a head 13 which is detachably mounted on the carrier 31. The type-wheels are rotatably mounted upon a transversely-divided cylinder 16,17, and are spaced by washers 19 which are interlocked with the cylinder 16, 17, thereby permitting any one of the type-wheels to be rotated without disturbing the adjacent wheels. The sections 16, 17 of the cylinder are held together by screws 22 and expanding springs 23. The springs tend to draw the sections of the cylinder endways towards each other, and cause the flanges 161, 171 to press the washers and type-wheels into frictional contact with one another, the tension of the springs and consequently the degree of friction being adjusted by means of the screws 22. The cylinder 16, 17 is locked to the spindle 18 by a projection 25 on the latter, and the type-wheels 15 are locked in the positions to which they have been set by spring- pressed detents 27. When one or more of the detents are disengaged by hand, and the spindle 18 is turned by the knob 181, the friction between the washers and the type-wheels causes those wheels that have been released to rotate in unison with the washers relatively to the remaining wheels which are held stationary by their detents. By withdrawing the shaft 18, the wheels may be removed in a body for cleaning or renewal, from between the cheeks 14. The type-carrier 31 is supported and guided by a lever 34 and a radius arm 39, respectively carried by the pivoted rockers 341, 391. The carrier 45 of the ink-pad 44 is mounted in the frame by a transverse rocker 46, and is connected by a forked link 49 with an extension 31<a> of the carrier 31, the connexion between the parts 49, 31<a> being effected by an eccentrically mounted pivot-pin 50 which may be . adjusted to obtain the required pressure of the inking-pad against the type-wheels. To operate the lever 34 through the pitman 57 and the crank 58, the loose spur-wheel 66 is engaged by.a.clutch 69, whith may be of known construction. The start- and-stop devices are arranged to arrest the motion of the machine with the working parts in the position shown in Figs. 1 and 2, so that when the machine is started the type-head carrier is first raised, causing the free end of the ink-pad carrier 45 to move upwards at a relatively-increased speed until the ink-pad presses squarely, without appreciable sliding contact, against the types in the printing line. The weight of the type-head and of the type-head carrier is counterbalanced by a spiral spring 72. The rockers and like parts are mounted upon taper centres such as those described above in connexion with the work-rest 5.