US863583A - Foil-stamping press. - Google Patents

Description

.Nb. 863,583. PATENTED AUG. 20, 1907. 0. BLANKMEISTER.

FOIL STAMPING PRESS.

APPLIOATIOK FILED NOV. 3.1906.

' W I k W wm| I w gx 1 I a 8 UNITED STATES PATEN T OFFTCE.

OTTO BLANKMEISTER, OF DRESDEN, GERMANY, ASSIGNOR TO REINHOLD MASER, OF DRESDEN, GERMANY.

' FOIL-STAMPING PRESS.

Specification of Letters Patent.

Patented Au 20, 1907.

Application filed November 3, 1905. Serial No. 285,695.

To all whom it may concern:

Be it known that I, OTTO BLANKMEISTER, a subject of the German Emperor, residing at Dresden, Germany, have invented certain new and useful Improvements in FoilStamping Presses, of which the following is a specification.

My invention relates to foil stamping presses, and refers more particularly to a device for feeding the metal leafespecially that rolled as disclosed in Letters Patent No. 795,023bclow the stamp-head, and for cutting it into lengths.

By means of my new device the foil can be stamped much more rapidly and sharply than otherwise, and with considerable economy of metal; for the foil is fed into the press without a backing in a continuous strip or ribbon and not, as ordinarily, together with a web of paper, or by means of an aspirator or the like.

In the accompanying drawing the new device is shown together with the portion of the stamping press to which it is fixed.

Figure l is an elevation and Fig. 2 a plan, partly in section. Fig. 3 is an elevation of the cutting appliance in raised position; Fig. 4; a like view when making the cut; Fig. 5 is a cross-section through Fig. 4, certain rear parts being omitted for the sake of clearness. Fig. (i is a detail view showing in elevation the cutter holding arm and connections. Figs. 7 and 8 are views in detail of the means for operating the roll for receiving the paper strips.

The endless foil strip a is wound up on a ribbon or backing of paper or the like b, two marginal strips 0 being wound in between the ribbon and the foil, as set forth in detail in my Letters Patent 795,023.

The paper web I) and marginal strips 0 with the intermediate strip of foil a are fed from the roll A over a guide bar (Z in line with the stamping table. The paper strip 1) when it reaches the guide-bar passes therearound and beneath the same in a rearward direction between a roller 6 and weighted roller f. The marginal strips 0 and foil 11 pass over the stamping table where the portion of the foil corresponding to the face of the stamp is acted upon by a stamp head g and severed by a knife Z to be hereinafter more fully described. The marginal strips 0 pass beneath a guide bar h thence upward over a roller t' and beneath pressing rollers 70 and is acting under the influence of gravity to insure a close frictional contact between the strips 0 and roller 1'.

In the rear of the stamping table is located a foil cutter l for severing the stamped lengths of foil. This blade is operated while the foil is held down to the table to prevent tearing of the foil. This cutter comprises a blade m removably secured in a slotted arm or holder n fixed to the rock shaft 2 and beneath the arm n are two pressing bars or jaws 0 between which the blade passes. These pressing bars are supported from the arm or holder 71 by a link a and spring 0 which permit the holder n with the blade at to advance toward the foil to sever the same while the jaws 0 press uponthe foil to firmly hold it.

A shaft j is operated from a drive shaft r and carries two cams or eccentrics t and The eccentric t is engaged by a reciprocating arm a on the short shaft a mounted on any suitable bearings as a Fig. 2 provided on its upper end with a rack 11 which engages a gear to on the shaft of roller e. The eccentric a is engaged by a lever arm 3 of the rock shaft 2 forraising and lowering the arm 71 carrying the knife in, as shown in detail in Figs. 2 and 6.

Upon setting the machine into operation the upper web I) and strips 0 are drawn from the roll A carrying the foil to the stamping table. The roller 6 serves to draw the paper strip 1) while the rollert' draws the marginal strips 0. The roller 1' is driven by a cord from the drive shaft r and the roller e is driven intermittently in a forward direction by the rack bar it actuated by the eccentric t.

The shaft e of roll 0 must only turn in one direction and the rotation of the gear 11) being in both directions, (see Fig. 7) the said gear is connected by any suitable means with said shaft, such for instance as the pawl and ratchet mechanism shown in Fig. 8, whereby such oscillatory motion of the gear is converted into continuous motion of the shaft e.

I claim as new:

1. In a stamping press, a feed and cutting device for foil wound in rolls with a backing-web and interposed marginal strips. comprising in combination with a stamp ingtable, a guidebar at the back thereof, means for drawing the backing in downward direction over the bar with intermittent motion, a guidebar at the front of the table, means for drawing the marginal strips, which support the foil, in upward direction under the second bar and for holding the strips under tension, and intermittently actuated means for cutting the portion of the foil between the marginal strips, substantially as described.

2. In a stamping press, a feed and cutting device-for ioil wound in rolls with a backing-web and interposed marginal strips, comprising in combination with a stamping-table, a guide-bar at the back thereof, an intermittently rotating roller and a pressingroller cooperating therewith, for drawing the backing downward over the said bar. a guidehar at the front of the table, a rotating roller and pressing-rollers cooperating therewith, for drawing the marginal strips upward under the said second bar, and intermittently actuated means for cutting the portion of the foil between the marginal strips, substantially as described.

3. Ma stamping press a feed and cutting device for foil wound-in rolls with a backing-web and inter-posed marginal strips, comprising in combination with a stamping-table. a guidebar at the back thereof, an intermittently rotating roller and a pressing-roller cooperating therewith, for drawing the hacking downward over the said bar, a guide-bar at the front of the table, a rotating roller and pressing-rollers cooperating therewith, for drawing the marginal strips upward under the second bar, a hinged blade adapted to cut the foil between the marginal strips, and means for intermittently raising the blade in correspondence with the feed of the foil, substantially as described.

4. In a stamping press a feed and cutting device for foil wound in rolls with a backing-\veb and interposed marginal strips, comprising in combination with a stamping-table, a guide-bar at the back thereof, an intermittently rotating roller and a pressing-roller cooperating therewith, for drawing the backing downward over the said bar, a guide-bar at the front of the table, a rotating roller and pressing-rollers cooperating therewith, for drawing the marginal strips upward under the said second bar, a hinged blade adapted to cut the foil between the marginal strips, and means for intermittently raising the blade in correspondence with the feed of the foil, and means carried by the knife for holding the foil down to the table during severance, substantially as described.

In testimony whereof I aifix my signature in presence of two witnesses.

OTTO BLANKMEISTER.

Witnesses PAUL E. SCHILLING, FRANK SIMON.

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