US822108A - Bronzing-machine. - Google Patents

Description

PATENTED MAY 29, 1906.

M. FRITSGHB.

BRONZING MACHINE.

APP'LLQATIQN FILED FEB. s, 1906.-

2 SHEETS-SHEET 1.

wi/bneooeo No. 822,108. PATENTED'MAY 29, 1906. M. FRITSGHB. BRONZING MACHINE.

APPLICATION FILED FEB.8, 1906.

2 SHEETS-SHEET 2.

were STATES rarest rriois.

MAX FRITSCHE, OF OARLSTADT, NEW JERSEY, ASSIGNOR TO JOSEPH A. KAPP, OF NEW YORK, N. Y., AND LOUIS HEUGSTLER, OF WEEHAWKEN, NEW JERSEY.

v BRONZlNG-IVIACHINE.

No. 822,108. Specification of Letters Patent. Patented May 29, 1906.

T0 rtZZ whom it may concern:

Be it known that 1, MAX FRITSCHE, a citizen of the United States, residing in Carlstadt, in the county of Bergen and State of New Jersey, have invented certain new and useful Improvements in Bronzing-Machines, of which the following is a specification.

This invention aims to provide certain improvements in bronzing-machines, and more especially in the mechanism for operating the supply-roller of the bronze-fountain; and for this purpose the invention consists of an improved mechanism for intermittently actuatingthe feed-roller of the bronze-fountain from the shaft of the sheet-carrying cylinder, as will be fully described hereinafter, and finally pointed out in the claims. In the accompanying drawings, Figure 1 is a side elevation of my improved bronzingmachine. Fig. 2 is a side elevation of the mechanism by which motion is transmitted to the bronze-powder feed-roller from the shaft of the sheet-carrying cylinder drawn on a larger scale. Fig. 3 is an end elevation of Fig. 2. Fig. 4 is a plan view, partly in section; and Fig. 5 shows the handle for the gravity check-pawls.

Similar letters of reference indicate corresponding parts in the different figures of the drawings.

Referring to the drawings, A represents the supporting-casing of a bronzing-machine, and F the bronze-fountain, which is supported thereon, a suitable feed-roller being furnished in said fountain for transmitting a quantity of bronze-powder to the sheet that is fed to the sheet-carrying cylinder of the machine. The shaft f of the feed-roller is provided at one end with a sprocket-wheel f which is driven by a weighted sprocketchain f which passes over the sprocketwheel and is connected at its upper end with an oscillating lever d, which is fulcrumed at f to the supporting-frame of the machine at the upper part of the same. The fulcrumed lever d is provided with a slot tat its upper end for adjusting a connecting-link e on the upper end of the lever d by means of a setscrew c, said link being provided with a hook c for holding the end link of the sprocketchain 7 To the opposite or lower end of the sprocket-chain is attached a counterbalancing-weight w. The sprocket-wheel is placed loosely on the shaft of the feed-roller;

but said shaft is turned in one direction by the sprocket wheel in connection with a pawl and ratchet mechanism comprising parallel pawls p, fulcrumed to the outer face of said sprocket-wheel and normally engaging a ratchet-wheel T, which is keyed by its hub to said shaft. One of the pawls p is slightly longer than the other, so that the ratchet-wheel can be actuated to the extent of half a tooth, whereby the accuracy of the adjustment is increased. A handle h is loosely pivoted to the screw which forms the ivot 0 said pawls and is provided atits i ower end with an inwardly-extending arm h, which when said handle is pivotally moved engages under the pawls p and lifts the same fromengagement with the ratchet-wheel r.

The lower end of the fulcrumed lever (Z is provided with an antifriction-roller (P, which moves under the tension exerted on the sprocket-chain by its weight w over the periphery of a cam I), applied to the shaft S of the sheet-carrying cylinder.

Each rotation of the cam b produces the oscillation of the lever d, and thereby the rotation in one direction only of the ratchetwheel, and consequently of the feed-roller, so as to supply the required quantity of bronze-- powder to the sheet delivered to the sheetcarrying cylinder. By the adjustment of the connecting-link by which the sprocketchain is connected with the oscillating lever 01 the rotation of the feed-roller and the supply of bronze-powder to the sheet are regulated. The intermittent rotary motion imparted to the feed-roller is dependent on the length of the sheet to be bronzedthat is to say, the feed-roller has to be rotated for a shorter period of time for a shorter sheet and for a longer period of time for a longer sheet. The higher the connecting-link is adjusted in the oscillating lever d the greater will be the oscillation of the same, and consequently the greater the rotation imparted to the feedroller, while when the link is adjusted in a lower position in the oscillating lever the rotation will be shorter, and consequently the period of time for the supply of the powder shorter.

The adjustment of the sprocket-wheel can be readily accomplished by the attendant, so

that the bronze-powder feed-roller is rotated for the exact time required. The adjustment is a positive one and can be accomplished accurately by the simple adjustment of the link in the upper slotted end of the oscillating lever.

Having thus described my invention, I claim as new and desire to secure by Letters Patent 1. In a bronzing-machine, the combination, with the shaft of the sheet-carrying cylinder-shaft and the feed-roller shaft, of a sprocket-wheel on the latter, a pawl-andratchet mechanism between the sprocketwheel and shaft, an oscillating motion-transmitting lever, a weighted chain connected with said lever and passing over the sprocketwheel, and a cam on the shaft of the sheetcarrying cylinder for actuating the lower end of the motion-transmitting lever.

2. In a bronzing-machine, the combination, with the sheet-carrying cylinder and the feed-roller shaft, of a sprocket-wheel p'laced loosely on the latter, a pawl-and-ratchet mechanism between the sprocket-wheel and shaft, an oscillating lever fulcrumed to the supporting-frame of the machine, a weighted sprocket-chain engaging said sprocket-wheel and connected adjustably to the upper end of the oscillating lever, and a cam on the shaft of the sheet-carrying cylinder engaging the lower end of said oscillating lever.

wheel, parallel pawls pivoted to the face of said sprocket-wheel and normally engaging said ratchet-wheel, said pawls being of such relative lengths as to permit the adjustment of said ratchet-wheel to the extent of half a tooth, and means for moving said sprocketwheel alternately in opposite directions.

4. In a bronZing-machine, in combination, with the feedroller shaft, a ratchet-wheel keyed thereto, a sprocket-wheel rotatable on said shaft, a pawl pivoted to said sprocketwheel and normally engaging said ratchetwheel, a handle pivoted to the pivot of said pawl and having an arm adapted to engage under the latter, and means for alternately moving said sprocket-wheel in opposite directions.

In testimony that I claim the foregoing as my invention I have signed my name in presence of two subscribing witnesses.

MAX FRITSCHE.

Witnesses:

HENRY J. SUI-IRBIER, PAUL GoEPEL.

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