US189005A - Improvement in machines for making pills, lozenges - Google Patents

Description

T. J'. YOUNG. MACHINE FOR MAKING PI-LLS, LOZENGESQ am.

No. 189,005. -Patented March 27,1877.

b v .iIl/rlllll'llb mm UNITEDSTATES PATENT QFFIQ Q Q THOMAS J. YOUNG, 0F PHILADELPHIA, PENNSYLVANIA, ASSIGNOR HENRY BOWER, OF SAME PLACE. V

IMPROVEMENT IN MACHINES FOR MAKINGJPYILLS, LOZENGES, &c.-

Specification forming part of Letters Patent No. 189,005, dated March 27, 1877; application filed i March 9, 1877.

To all whom it may concern.-

Be it known that I, THOMAS J. YOUNG, of the city and county of Philadelphia, in the State of Pennsylvania, have invented certain new and useful Improvements in Machines for Making Pills, Lozenges, &c., of which the following is a specification:

My invention relates to that class of pillmachines in which dry powders are compressed between a reciprocating plunger or upper die and a lower die, which is stationary during the operation of compression, and movable thereafter to act as an ejector for the finished product from the mold or socket within which it is formed.

Letters Patent of the United States for a machine of this description were granted and issued to Henry Bower, of Philadelphia, as my assignee, said Letters Patent being numbered 156,398, and hearing date October 27, 1874.

The object of my present invention is to provide improved means for elevating and depressing the lower die, and for preventing the descent of the upper die during the operation of charging the mold; to which ends my improvements consist in the combination of a lower die, having a downwardly -projeoting stem, with a lifter connected to the cross-head of the upper die, and provided with a movable ejector-block, and also in the combination of a lower die, which rests upon the bottom of its socket or mold during the operation of charging the same, with an upper die operated by a balanced eccentric upon an intermittentlyrotatlng shaft, all as hereinafter more fully set forth.

In the accompanying drawings, Figure 1 is a side view, partly in section, of a machine embodying my improvements; Fig. 2, a vertical transverse section through the same; and Fig. 3, a plan 'view, on an enlarged scale, of the lifter and ejector-plate.

The machine is supported upon a table, A, which rests upon feet A, and serves as a bedplate, to whi are secured vertical housings B, having b arings B at top, and connected by an arched cap, B A driving-shaft, G, is mounted in the bearings B and is intermittently rotated, either by means of the clutch described in Letters Patent N 0. 156,398 time said, by fast and loose pulleys G 0 or by:

some other suitable device.

The means ofobtaining suchintermittent movement need not,'however, be here'spcifically described, as they do not per se constitute any part of my present invention.

A pressing-eccentric, D, is secured upon the driving-shaft 0, between the housings, its strap D being connected by a rod, D with a cross-head, D sliding upon guides b b on the inner faces of the housings. The cross-head D carries the upper die or plunger D, the form and size of which is governed by that of the article to be produced. The lower die E rests in a mold or socket, El, concentric with the upper die, within which socket the material is compressed at each downward movement of the latter. A shoulder, E formed upon the lower. die E, rests upon the bottom of the socket 1E during the operation of compression, below which shoulder a central stem,

0, on the die projects downward, and passes through a guide, 6.

The lower die is elevated to discharge the finished pill at each upward movement of the cross-head by a horizontal lifter, F, below the table A, which lifter is connected to the crosshead by lifter-rods ff, passing freely through the table. An ejector-block, F, is secured upon an arm, f pivoted to the lifter F. The block is held in line with the stem 6 of the lower die E by a spring, f and stop f and can be moved out of line with the stem, when required, by a hand-lever, or by a cord, f passing over a sheave, f on one of the legs of the frame. When the lifter F is at the lowest point of its traverse, the ejector-block is in line with and just below the lower end of the stem e of the lower die E, and upon the upward movement of the cross-head the lifter and block elevate the die into the position shown in Fig. 1, and thereby eject the finished pill from the socket E. When the cross-head has reached the upper extremity of its traverse the movement of the shaft 0 is arrested, and the finished pill being removed the ejectorblock is swung clear of the stem of the lower die, as shown'in dotted lines in Fig. 3, and the die E drops, by the action of gravity, into theposition shown iin Fig.2, when the socket. i'ee'ei\'res;a fresh ;charge of material, the li'ften F descending simultaneously with the upper die. When the shaft is again rotated, the spring 1 will return the ejector-block F at the lower end of the stroke to its position beneathland -in line with the stem 0, andthe op eration of ejection willbe repeatedion thenext upward stroke. a l

Where the lower die is of very small. dimensions, it may become necessary to attacha small additional weight to its stem to insure its proper downward movement; but in general the weightof theldieand stem will be found tobesufiicient. 3

Inorder to prevent injury to the hand of the operator by the accidental descent of the upper dieduring the charging of the socket, the eecentric audits con Motions-are retained imposition at the upper end of the stroke by" a counter-balance, G, secured upon the shaft, or'upon the eccentric,if preferred, so as to act stem of the in opposition to thedownward tendency of th e pressing mechanism, andiprevent' any material movement of the same untilthe driving shaft is started in rotation for another com: pression. i

I claim as my invention, and desire to secureby Letters Patent-.;

l; The 'ornbination, in a mammal-arms];-

.'ing pills, lozenges, 8m, of a lower die, having a downwardly-projecting stem, a litter connected to and moving with the cross-head of the uprer die, and an ejector-block," movable upon the lifter into and out of line'with the owe d e, Sub a ti y a set 1 l J 1 4.- .J l

2.'lhe combination of a lifter, a movable ejector-block, a spring and stop, and an operating cord or rod, substantially as set forth.

-Witnessesi t p J snownenBnrL -ij Josnrn Venues;

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