Improvement in machines for printing pills
US 200589 A
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W. R. WARNER. Machine for Printing Pills.
Patefited Feb. 19, 1878.
-[m 621 60) William B Mme) 21y his C(Zlomey (/fimwm/ Wm RPETERS, PHOTO-LITHOGRAPHER, WASHINGTON, D
UNITED STATES PATENT OFFICE;
WILLIAM R. WARNER, OF PHILADELPHIA, PENNSYLVANIA.-
IMPROVEMENT IN MACHINES FOR PRINTING PILLS.
Specification forming part of Letters Patent No. 200,589, dated February 19, 1878 application filed November 26, 1877.
Figure 1 is a vertical section of my pill-printin g machine; Fig. 2, the same, showingthe slide in a different position; Fig. 3, a'plan view; Fig. 4, a transverse vertical section on the line -1 2, Fig. 2; Fig. 5, an exterior side view, drawn to an enlarged scale, of one end of the machine; and Fig. 6, an enlarged view, showing one of the grooves in which the pill is rolled during the operation of printing.
The box-like base A of the machine has at one end a compartment, to, for containing'a supply of pills at the other end a compartment, 1), containing inking-rollers d (Z and e,- and between these compartments is the bed f, in the upper surface of which are a series of longitudinal V-shaped groovessix, in the present instancethe sides of these grooves being preferably clothed with rubber. B is a slide, which can be moved to and fro on the base, being guided thereon by side strips; and on the 1111-- the opposite ends of which pass through and are guided by vertical slots m in'the opposite sides of the box, the slots being too narrow to permit the pills to pass through them. One face of the triangular bar is in contact with the rear of the bed f, and in the upper edge .of
the bar are cut as many inclined and concave notches as there are grooves in the bed, one notch coinciding with each groove.
A vertical reciprocating motion is imparted to the bar E, either by hand or from the slide, through the medium of the devices described hereinafter, or other suitable mechanism. When the bar is depressed its inclined lower edge will displace the pills in the reservoir to until it reaches the position shown in Fig. 2,
when the notches will form a series of pockets,
each containing a pill, which is retained in place by the rear of the bed. When the bar is elevated it will carry up with it as many pills as there are pockets, each pocket being just large enough to receive one pill, and when the barhas reached the elevated position shown in Fig. 1 the pills will roll from the pockets into the V-shaped grooves of the bed, one pill in each groove, after which the barmay be again depressed, so as to be out of the way of the slide, the printing-plates of which have been previously inked, and which may now be moved forward, so that each inked plate will act on one of the pills, and, while it rolls the latter along the grooves, will impart the defar that its printing-plates will come in con tact with the inking-rollers, and thus receive sufficient ink for printing the surfaces of another batch of pills.
It is important that the grooves should be V-shaped, so that in rolling the pills along them the printed matter shall not be smeared by contact with the bed.
In the present instance, the flanges q q of the slide, which overhang the base, are pro vided with teeth t, adapted to those of the wheels M, one of which is hung to a stationary pin on each side of the box, the teeth of the wheels gearing into those of racks to, one of which is secured to each end of the triangular bar E. When the slide has reached the'limit of its rearward movement the gearing described will be in the position Fig. 5; but on moving the slide forward the triangular bar ing printing or indenting surfaces to roll the pills under pressure, in the manner set forth.
.2. A pill-printing machine in which a bed with a series of V-shaped grooves is combined with a slide carrying the printing or indenting plates, substantially as set forth.
3. The combination of the bed and its series of V-shaped grooves with the pill-reservoir a and the notched bar E, to which a vertical reciprocating motion may be imparted, substantially as described.
4. The combination of the slide and its printing or indenting plates with the bed having V- shaped grooves, the sides of which are clothed with rubber or other equivalent yielding material, all substantially as specified.
5. The combination of the grooved bed, the slide, and the reciprocating transverse bar E with mechanism, substantially as described, through the medium of which the slide is caused to operate the bar, in the manner set forth.
In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.
WILLIAM R. WARNER.
H. A. CRAWFORD, HARRY SMITH.