US1023165A - Strip-feeding device. - Google Patents

Description

STRIP FEEDING DEVICE. APPLICATION FILED MAZLM, 1910.

1,023,165. 2 Patented Apr. 16,1912.

COLUMBIA PLANOORAPH 110., WASHINGTON. D. c.

UNITED STATES PATENT OFFICE.

OSCAR OEHRING, 0F BERLIN, GERMANY, ASSIGNOR 'IO AMERICAN STAMP & TICKET VENDING MACHINE 00., OF NEW YORK, N. Y., A CORPORATION OF JERSEY.

STRIP-FEEDING DEVICE.

Specification of Letters Patent.

Patented Apr. 16, 1912.

Application filed March 22, 1910. Serial No. 550,831.

To all whom it may concern:

Be it known that I, OSCAR OEHRING, a subject of the Emperor of Germany, residing at Berlin, Germany, have invented new and useful Improvements in Strip-Feeding Devices, of which the following is a specification.

This invention relates to a device designed more particularly as an attachment to a self printing mechanism for printing tickets or the like, and if desired forming perforations or indentations between said tickets, on a continuous web of paper for the purpose of being vended by a coin operated mechanism, although it may be used on machines of other kinds and also when printed strips, wound on a roll, are withdrawn manually therefrom.

The object of this invention is to provide a simple device for regulating the tension of a strip of paper wound into a roll which may be blank on one or both sides for the purpose of printing thereon, either continuously or intermittently a series of impressions to form a continuous ticket strip, or said strip may contain a series of printed subject-matter representing tickets or the like to be torn from said strip when issued.

When a blank strip in roll form is fed to a so-called self-printing machine, wherein the ticket impressions are printed on a strip as they are demanded, the mechanism for feeding the strips to the printing form is operated only when a ticket is demanded and the operation of feeding causes a strip to be delivered intermittently or by jerks through the sudden starting of the feeding devices. This jerky feeding owing to the inertia of the roll which at this time is stationary, is liable to tear the strip and interrupt the operation of the mechanism to which the printing device is connected; for the same reason when a ticket strip is wound in a roll for convenience and expediency in handling the same, the inertia of the roll often causes the strip to tear when the latter is drawn therefrom as the tickets are disposed of. These and other defects are overcome by the improved tension device forming the principal object of the present invention and illustrated in the accompanying drawings, which show the device attached to the self-printing mechanism that may or may not form a part of a vending machine.

In the drawings, a is a blank strip, usually of paper, wound on a roll I) rotatably mounted on a shaft 0 carried by one ormore supports f rising from the frame of a selfprinting machine 72.. The strip a passes from the roll I) to and through a guide m on said printing machine and fed thereto either continuously or intermittently by means of a feeding device 0.

Loosely mounted on the shaft 0 at one end of the roll 6, or in some other suitable position, is a rocking arm 03 carrying at its lower end a small guide roller it over which the strip a is carried from the strip roll a to the printing and perforating mechanism, should the latter attachment be desired to Weaken sections of the strip. The roller h turns on a pin or one leg of a loop h attached to the rocking arm (Z, said pin or loop projecting into a curved slot g, concentric with the axis of the shaft 0 in the support f on which said shaft is mounted.

Surrounding the shaft 0 and attached to any fixed point is a spring 6, the opposite end of which is fastened to the swinging arm cl, and by its tension tends to hold said arm in the position indicated in full lines on the drawing, thereby forming a loop in the strip a by means of the roll h thereon which draws from the strip roller a a length of the strip at equal to or slightly in excess of the amount necessary for a ticket.

Then the printing mechanism a is set in operation the feed roll 0 thereof begins to rotate and as it bears against the strip a the latter is drawn downwardly through the guide we to the printing form, not shown.

This movement of the strip (1!. tends to rotate the strip roll a, but as the resistance of the spring 6 is less than the inertia of the strip roll a the arm (Z is caused to swing on the shaft 0 to the position indicated by dotted lines, at which point a sufiicient amount of the strip loop has been fed to the printing machine to produce a ticket. After the ticket has been printed, the feed mechanism 0 comes to rest and the tension being removed from the strip a the spring 6 overcomes the inertia of the roll and returns the swinging arm (Z to its initial position drawing fro-m the roll-by this movement a sufiicient amount of the strip to form another ticket. It will thus be seen that the strip is not subjected to sudden strains or jerks to overcome the inertia and withdraw suflicient material for a ticket from the roll a" when the printing feed is put in operation because the necessary length of material to form a ticket is contained within the loop previously stated. The strip roll therefore will not be rotated by the feed mechanism of the printing machine, but as soon as the latter comes to rest the tension of the spring 6 acting through the arm (Z and roller 72. unrolls enough paper to form the next ticket to be printed.

The roll a may be a ticket strip roll instead of a roll of blank paper, in which case the tickets may be disbursed by a vending machine having a quick acting feed, or they may be torn from the strip by hand. In either case the tension device will prevent the strip from being torn or otherwise damaged as it is withdrawn from the roll.

What is claimed as new is 1. A device of the character described comprising a frame,aweb-feeding roll journaled thereon, intermittently actuated means for advancing said web and normally holding it taut, a guide tube in alinement with the axis of the feed-roll through which said web advances, and reciprocating means loosely mounted on the feed-roll shaft engaging the free length of said web, when said advancing means is inactive, to urge said web forwardly beyond the axis of said feed-roll, said reciprocating means being controlled by said intermittently advancing means.

2. In a tension device comprisinga frame, a strip-feeding drum mounted thereon and means for intermittently advancing said through which said strip advances, alining with the axis of said drum, a journal way, a roller guided in said journal-way, said roller traversing said way in one direction 3 to unwind a portion of said strip and there by rotate said drum, means for holding said unwound portion bowed with respect to said guide and the axis of said drum, said advancing means causing said roller to traverse said way in the opposite direction to draw said web taut and thereby replace the rotation of said drum, and means carried by the drum shaft for actuating said roller when in its last-named position.

3. A device of the kind described comprising in combination a frame, a web-feeding drum mounted thereon, intermittent advancing means engaging said web, a j ournal way, reciprocating means adjacent said feed roll traversing said journal-way and causing a portion of said web to move therewith, said reciprocating means moving in one direction to rotate said drum but replacing said rotation when said advancing means is active, and means loosely mounted on the'feed roll shaft, controlled by said advancing means, for actuating said reciprocating means.

4. A device of the kind described comprising a frame, a web-feeding drum revolubly mounted thereon, a guide tube traversed by the web, a spring-pressed reciproeating arm loosely mounted on the shaft of the feed-roll, a journal way, said tube alining with the axis of said feed roll and sald journal-way being concentric therewith, a

I tension roller carried at the free end of said garin and traversing said journal-way, said roller when at one end of said way bowing said web with respect to said tube and the I shaft of said drum, and means for drawing Esaid Web taut, thereby urging said tension I roller to the other end of said way.

strip, the combination of a guidetube In testimony whereof I have hereunto set my hand in presence of two subscribing witnesses.

OSCAR OEHRING. Witnesses:

HENRY HASPER,

VVOLDEMAR HAUPT.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. G.

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