US759071A - Perforating-machine. - Google Patents

Description

No. 759,071. Y PATENTED MAY 3, 1904.

v R. T. BROOKS. PERPORATING MACHINE.

' APPLIOATIOH FILED SEPT. 22, 1903.

N0 MODEL.

UNITED STATEs Patented May 3, 1904:.

PATENT OEEIcE. I

RICHARDS T. BROOKS, OF SI/VARTHMORE, PENNSYLVANIA, ASSIGNOR TO KEYSTONE TYPE FOUNDRY, OF PHILADELPHIA, PENNSYLVANIA, A

FIRM.

PERFORATING-NIACHINE.

SPECIFICATION forming part of Letters Patent No. 7 59,07 1, dated May 3, 1904.

Application filed September 22, 1903. Serial No. 174,208. (No model.)

To all 1.077.011?) it may concern:

Be it known that I, RICHARDS T. BROOKS, a citizen of the United States, residing at Swarthmore, in the county of Delaware, State of Pennsylvania, have invented new and useful Improvements in Perforating-lvlachines, of which the following is a specification.

My invention relates to a machine for perforating paper; and it consists of means for adjusting the perforating-blade employed to cause an even piercing of the paper and greater or less penetration.

Figure 1 represents a plan view of a portion of a perforating-machine embodying my invention. Fig. 2 represents an end elevation thereof, partly in section. Fig. 3 represents a partial end elevation and partial section on line in m, Fig. 1.

Similar numerals of reference indicate corresponding parts in the figures.

Referring to the drawings, 1 designates a rotary head consisting of the collar 2 and the arms 3 radiating therefrom, said head being properly secured to a suitable shaft, which is shown in dotted lines, Fig. 1. On the extremity of each arm is a flange 1 and a boss 5 at a right angle to each other. In said flange is the slot 6, and passing through said boss is the set-screw 7, which, as is evident, is at a right angle to said slot.

8 designates a sliding bar which extends in the transverse direction of the machine and rests against the flange 41, to which it is secured by means of bolts 9, which pass freely through the slot 6 and are screwed to said bar 8. The outer side of said bar is recessed, as at 10, and receives the blade 11, which is pro vided with serrations or teeth 12 for perforating purposes, said blade being secured to said bar by means of the screws 13. The

screw 7 is adapted to engage the head or inner end of the bar 8 and tighten against the same.

The operation is as follows: The bolts 9 are loosened and the screw 7 turned to the extent required to set the teeth 12 uniformly and at a proper distance from the center of the head 1 relatively to the degree of penetration required. The bolt-s 9 are then tightened against the bar 8, whereby, as is evident, the blade reliably retains its set position and may be further adjusted, if required, simply by loosening the bolts 9, operating the screw 7 in the proper direction, and again tightening said bolts and screw. Power is applied to the shaft of the head in any suitable manner, and as the head rotates the teeth 12 penetrate the paper resting on a suitable bed or table in a convenient and uniform manner.

The tendency of the bars 8, and consequcntly of the blades 11, to shift backward due to any strain thereon when the teeth 12 enter the paper or material is resisted by the bolts or screws 7, which bear solidly against the back or inner faces of the heads of the barsS in the longitudinal direction of the latter, said screws thus receiving the thrust of said bars, while the bolts 9 steady said bars and hold them flat and tight against the flanges 4: in the position to which they are adjusted by said screws 7.

Various changes may be made in the details of construction shown without departing from the general spirit of my invention, and I do not, therefore, desire to be limited in each case to the same.

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

1. In a paper-perforating machine, a rotatable head, an arm projecting radially therefrom, a slidingbar fitted to said arm, a toothed blade secured to said. bar, a slot in said arm, a bolt passing through said slot and engaging said bar and a set-screw on said arm engaging said bar, said. screw being at a right angle to said bolt.

2. Ina paper-perforating machine, a rotary head, a flange and a boss thereon at a right angle to each other, a slot in said flange, a sliding bar resting on said flange, a bolt passing through said slot and engagingsaid bar, a perforating-blade on said bar and a screw passing through said boss into engagement with said bar.

3. In apaper-perforating machine, arotary l gaging with said bar, said slot and set-screw head, a flange and a boss projecting therefrom being at a right angle to each other. at a right angle to each other, a perforatingblade, a sliding bar carrying said blade, said RICHARDS BROOKS 5 bar resting on said flange, the latter having a Witnesses:

slot therein, a bolt passing through said slot JOHN A. WIEDERSHEIM, into said bar and a set-screw in said boss en- S. R. CARR.

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