US1014175A - Printing-machine. - Google Patents

Description

A. R. PRIBIL.

PRINTING MACHINE.

APPLICATION FILED NOV. 7, 1902.

Patented Jan. 9, 1912.

/ $51 A 6mm, WM

ALEXIS R. PRIBIL, OF DETROIT, MICHIGAN, ASSIGNOR TO THE AUTOMATIC PLATEN PRESS COMPANY, OF NE!v YORK, N. Y., A CORPORATION OF NEW JERSEY.

PRINTING-MACHINE.

Specification of Letters Patent.

Patented Jan. 9,1912.

Application filed November 7, 1908. Serial Np. 461,446.

To all whom it may concern:

Be it known that I, ALEXIS R. PRIBIL, a

citizen of the United States of America, and

tioning on the platen "a sheet or other matter to be printed.

As it will appear from this specification and the accompanying drawing this invention is particularly applicable to those types,

of printing machines having a flat, stationary platen against the underside 'of which the impression istaken; but, the invention is not exclusively confined to such a type of machine.

The broad idea of this invention is to provide means for directing a strong blast 6f air against the sheet as the latter passes onto the platen and also while at rest there, so as to firmly hold the sheet in its proper position until the impression is finished. To this end the invention comprises such elements .as will hereinafter be set forth while reference is had to the accompanying drawing in which Figure 1 is an outline side elevation of a printing machine embodying my invention, with parts omitted and largely diagram matic. Fig. 2 is a detail view of the nozzle device and Fig. 3 is a'view of a separate nozzle showing a modification.

The reference numeral 1. denotes the framework of the press, 2 is the stationary platenwhile 3 is the form member carrying the form 4. The form member is suspend- .ed in arms 5 journaled on shaft 6 and is oscillated by means of toggle links 7 8 and link 9 ivoted on crank pin 10 which latter is fast 11 the gear 11 driven fromplnion 12.

13 indicates spur gearsover which run an endless conveyor 14 which carries grippers 15. The spur gears are driven in any suitable manner and the grippers may be of any well known construction. A compresser 16 is-suit-ably mounted in the frame and may be operated in any manner, not shown.

17 denotes a bracket, one on either side of the press and ending in a fork 18, in which issupported a hollow pipe 29 provided with a nozz1e27 and connected to thecompressor by a hose -21. The pipe 29 is clamped in any position in the fork 17 by means of a nut 22, so that the height'and direction of the blast may be adjusted. The blast may be either intermittent or continuous.

As seen in Fig. 2 the nozzle 27 is screwed into a strap 28 which is pivoted on the pipe 29 at 30, and a short flexible connection 31 connects the pipe and the nozzle, so that the latter may be adjusted at an angle. to the pipe. This will be useful when the sheet to be printed is registered very much to one side of the platen.

Fig. 3 shows a forked nozzle 32 which i may be used instead ofthe nozzle 27..

The device operates as follows: The sheet 23 to be printed is fed on an inclined table 24 at'the lower end of which it is seized by the grippers and carried in the direction of the arrow until it is properly under the platen when it stops, the operation of the endless conveyer being also intermittent. During its travel, while held by the grippers, and also after it has stopped, the sheet issubjectto a strong blast from a nozzle 27 said blast keeping the sheet smooth and tight up against the platen, so that when the impression is taken the sheet will be firmly and smoothly in place on the platen, and after the impression is 'over, the endless conveyer removes the sheet. Thus it will be seen that because of the blast the sheet is kept fiat against the platen from the moment it is seized by the grippers and no special means are necessary to support the rear edgeof the sheet. In case an intermittent blast is used it will of course start to operate the moment the form-member moves down, and be shut off during the impression, or the blast may be otherwise turned to suit the particular kind of stock handled on the ress. It will also be apparent that my invention may be used on an inclined or even movable platen, and only changes in the mounting of the nozzles are necessary, the operation being substantially as setforth above.

What I claim is: p

The combination of a platen, mechanisms for conveying a sheet thereto, means for Signed at Hanover, Pa., this 28th day of ejegting a blast 0f a ir't0ward 1said sheet, the October 1908. Z sai means com r1s1n a nozz e 1 e anozzle pivoted th reon in the c t r and a' ALEXIS f PRIBIL' 5 flexible eennection between the nozzle and Witnesses:

the pipe for permitting the adjustment of JULIUS FISCHER, the direction of the saidblast. DALE M. SLEGNER.

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