US808406A - Stamping or tablet-making machine. - Google Patents

Description

- No. 808,406. PATENTED DEC. 26, 1905.

G. SOHWARZBBGK.

STAMPING 0R TABLET MAKING MACHINE.

APPLICATION FILED APB-.3, 1905.

UNITED STATES PATENT oirrron.

STAMPING OR TABLET-MAKING MACHINE.

Specification of Letters Patent. I

Patented Dec. 26, 1905.

Application filed April 3, 1905. Serial No. 253,684.

To all whom it may concern.-

Be it known that I, GEORGE ScHwARzBEoK, a citizen of the United States, residing at Ohicago, in the county of Cook and State of Illinois, have invented certain new and useful Improvements in Stamping or Tablet-Making Machines, of which the following is a specification.

This invention relates to improvements in machines of the class or type disclosed in Letters Patent No. 692,530, issued to William Kraemer on the 4th day of February, 1902- that is, such machines employed for forming plastic material or comminuted particles into variously shaped piecessuch as tablets, disks,spheres, buttons, small cakes,and like articles; and it consists in certain peculiarities of the construction, novel arrangement, and operation of the various parts thereof, as will be hereinafter more fully set forth and specifically claimed.

The object of the invention is to provide a priming or powdering attachment for ma chines of the above-named type, and more especially for a machine constructed according to the above-named patent, but which may be applied to and operated in connection with other machines of the same general character.

Other objects and advantages of the invention will be disclosed in the subjoined descriptionand explanation.

In order to enable others skilled in the art to which my invention pertains to make and use the same, I will now proceed to describe it, referring to the accompanying drawings, in which Figure 1 is a plan View of the matrix-plate and feed-box of a stamping or tablet-making machine, showing my improved attachment for priming or powdering matrices and plungers therefor to prevent the material adhering thereto. Fig. 2 is a detached perspective view of the powder-box, showing a portion thereof broken away to illustrate its perforated bottom. Fig. 3 is a View in elevation of one side of the matrix-plate and one end of the feed-boxes, showing the means for vibrating the powder-box and operating the conveyer in the feed-boxes. in elevation of one end of the matrix-plate and of the face of the feed-boxes, showing my vibratory powder-box and its connections in place thereon. Fig. 5 is a fragmental perspective view of the inner portion of the rackbar used to vibrate the powder-box; and Fig.

Fig. 4c is a view 6 is a fragmental plan view of a portion of the feed-boxes, showing the apertured horizontal extension thereon.

Like numerals of reference refer to corresponding parts throughout the different views of the drawings.

As my invention chiefly relates to means for priming or powdering the matrices and plungers, I have shown only enough of the other parts of the machine to furnish a clear understanding of the construction and operation of my improvements.

The reference-numeral 10 indicates the matrix-plate, which may be provided with one or more openings or matrices 11 for the reception and operation of the ejector plungers and dies (not shown) used for compressing the material and for ejecting the same. This plate may be horizontally mounted on the machine-frame and is usually provided at one of its ends with an inclined chute 12 for the discharge of the tablets or formed particles. Each side of the plate 10 is provided with a longitudinal race 13 for the reception and travel of the downwardly-extending flanges or projections 14, which are located transversely on the lower portion of the feed-boxes 15, which may be suitably supplied with the material from which the tablets and the like are formed.

As shown in the drawings, the feed-boxes 15 are spaced apart at their upper portions, but are joined and communicate with one another at their lower portions. Horizontally journaled in the lower portion of the feedboxes and extending across the plate 10 is a shaft 16, which has thereon a spiral conveyer 17, used for stirring the material and to force it through the opening in the bottom of the feed-boxes, so as to deliver it to the matrix or matrices of the matrix-plate. On one end of the shaft 16 is mounted a pinion 18 to engage the teeth 19 of a slotted rack-bar 20, which is loosely secured at one of its ends to a stationary pivot. On one side the feedboxes 15 are provided with a horizontal apertured extension 21, on which the powder-box 22 normally rests and is adapted to vibrate. As is clearly shown in Fig. 2 of the drawings, the powder-box 22 is provided with a perforated bottom 23, through which the powder or priming material is sifted, and has an upwardly-extending tubular portion 24:, to which a flexible tube 25 is connected at one of its ends, the other end of said tube being provided or communicating with a hopper 26 for the powder or priming material, which hopper may be suitably supported on the machine or otherwise. Extending longitudinally from one end of the box 22 is a bar 27, which is fulcrumed near its free end to one of the feed-boxes and has the upper portion of said end beveled, as at 28, so as to engage the teeth 19 of the rack-bar 20, which operates the conveyer in the feed-boxes as well as gives vibratory motion to the bar 27 and powder-box 22 thereon.

From the foregoing and by reference to the drawings it will be readily understood and clearly seen that the feed-boxes 15, carrying the powder-box 22, may be reciprocated so as to pass over the matrix or matrices 11 by any suitable means, but usually through the instrumentality of bars or rods 29, connected at one of their ends to said boxes and at their other ends to suitable driving mechanism. In the back-and-forth movement of the feedboxes it is apparent that as the beveled end 28 of the bar 27 engages the teeth of the rack-bar 20 a vibratory motion will be imparted through the first-named bar to the powder-box, thus sifting the powder therefrom, so as to prime or powder the matrix or opening 11, as well as the plunger or die operating therein, so as to prevent the material from which the tablets and the like are formed adhering thereto.

Having thus fully described my invention, what I claim as new, and desire to secure by Letters Patent, is-

1. In a stamping and tablet-making ma chine, the combination With a matrix-plate, of a feed-box movably mounted thereon, a perforated powder-box carried by said feedbox, a bar connected at one of'its ends to the powder-box and fulcrumed on the feed-box, and a rack-bar engaging the fulcrumed bar, substantially as described.

2. In a stamping and tablet-making machine, the combination with a matrix-plate, of a feed-box movably mounted thereon and having an apertured horizontal extension on one of its sides, a conveyer-shaft journaled in the feed-box, a pinion on one end of said shaft, a perforated powder-box mounted on said extension of the feed-box, a bar connected at one of its ends to the powder-box and fulcrumed on the feed-box, and a rack-bar adapted to engage the fulcrumed bar and said pinion, substantially as described.

GEORGE SCHWARZBECK.

Witnesses:

CHAS. C. TILLMAN, A. G-UsrAFsoN.

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