US702698A - Bookbinder's press-punch. - Google Patents

Description

Patented lune I7, 1902.

PL A. BOWEN.

BOUKBINDERS PRESS PUNCH.

(Application filed Jan. 17, 1902.). (No Model.)

TN: nkms Farms 00, Puerouhm. WASHINGTON. n. c,

UNITED STATES PATENT OFFICE.

. PHILIP A. BOWEN, OF MILWAUKEE, WISCONSIN.

'BOOKBINDERS PRESS-PUNCH.

' SPECIFICATION forming part of Letters Patent No. 702,698, dated June 17, 1902.

Application filed January 17,1902.. $erial No. 90,113. (No model.)

To all whom it may concern:

Be it known thatI, PHILIP A. BOWEN, a citizen of the United States, residing at Milwaukee, county of Milwaukee, and State of Wisconsin, have invented new and useful Improvements in Bookbinders Press-Punches,

of which the following is a specification.

My invention relates to improvements in bookbinders press-punches.

The object of my invention is to provide a device for use by bookbinders or printers by which a person may punch either one hole at a time or a series of two or more holes simul taneously through several sheets of paper; and it pertains more especially to the peculiar construction and arrangement of the parts by which the punch and die, comprising a set, are retained. in the same relative position to each other regardless of the relative position of said sets to each other, whereby the liability of gettingthe punch and die out of alinement whenchanging the adjustments of the several sets to each other is avoided and the employment of skilled labor for such purpose becomes unnecessary.

The construction of my invention is further explained by reference to the accompanying drawings, in which I Figure 1 represents a front view, part in section. Fig. 2 is a vertical section drawn on line to a; of Fig. 1. Fig. 3 is adetail showing an adjustable gage. Fig. 4 is a detail showing the treadle for operating the machine by foot-power. Fig. 5 represents a side view, part in section, showing a modified form of punch. Fig. 6 shows the form of hole made by the modified form shown in Fig. 5, and Fig. 7 is a perspective View of one of the'gages.

Like parts are'identified-by thesame reference-numerals throughout the several views. The punches 1 are connected with'the dies 2 through the punch guides or bearings 3, supporting-brackets 4, and brackets supporting shaft 5. The shaft 5 is supported at its respective ends from the base or body 6 of the machine by the vertical arms or standards 7. A vertical movement is given to the several punches 1 simultaneously by the cocentric shaft 8. The shaft 8 is preferably cylindrical in form, but is supported at its respective ends from the arms 7 7 eccentrically to its longitudinal axis by the bolts or trunnions 9 9. The eccentric shaft Sis actuated by the lever 10, which may be provided with a handle and operated directly by the hand of the user, or'saidlever 10 may be connected with a treadle 12 bya connecting-rod 18, in which latter case the punches are actuated by foot-power. When the lever 10 is in its raised position, as shown in Fig. 2, the punches are thrown up by the recoil of spiral springs 14, each punch in the series being provided with a similar spring. The springs 14-are interposed between the shoulder 15 of the punch-guide and the shoulder 16 of the punch, whereby as the several punches are relieved from pressure of the eccentric shaft 8 they are thrown up by the recoil of said springs, whereby as said lever 10 is turned downwardly said spiral springs 14 are compressed and said punches are forced through the material to be punched into the die 2. The several dies 2 are formed in the plates 17, and said plates are connected with the bracket 4 by the bolts 18. When relieved from pressure of the foot, the treadle 12 is drawn upwardly by the recoil of the spiral spring 19, which spring 19 is connected at its lower end to said treadle and at its upper end with the supporting-table 20. It will now be obvious that in view of the fact that the dies and die-plates are permanently connected with the punches, as stated, through the brackets 4 and stationary supporting-shaft 5 said dies and punches will be retained in the same relative position to eachother regardless of their horizontal adjustment upon said supporting-shaft 5. The brackets 4 are locked at any desired position in relation to each other upon the shaft 5 by the set-screw 21.

While I have shown a combination of three sets of punches and dies connected with the shaft 5, it is obvious that the number may be increased or diminished, as circumstances may require. I

To facilitate in holding the material to be.

punched in the desired relative position to the punches,

the front of the device, and the gage-bar 23 I regulates the longitudinal adj ustment of the paper toward the right or left. The bar 22 is supported at its respective ends from the standards 7 by the horizontal connecting-bar 2%, which bar 24 is adjustably supported in said standards 7 by the set-screws 25, where by by releasing said set-screws said gage 22 may be adjusted either forwardly or rearwardly, as stated. The gage-bar is slidably supported from the bar 22 by the collar 26 and is locked at any desired point of adjustment on said bar 22 by the set-screw 27.

It will of course be understood that any form of hole may be punched, according to the shape of the punch or die employed. If, however, it is desirous to out a slot in the paper from the hole to the rear edge of the paper, this end is accomplished by the device shown in Fig. 5, by means of which a swinging lever 28 is employed to cut the slot from the hole to the margin of the paper. The rear end of the lever28 is pivotally supported from the bracket 29 by the bolt or shaft 30, while the front end of said lever 28 is pivotally connected with the punch 31 in a recess 32, which recess engages in an aperture 33, formed in the front end of said lever 28, whereby said lever is moved upwardly and downwardly with said punch 31 as the same is operated. To the lower side of the lever 28 is attached an elongated punch 31, which operates in the die 35, wherebyas said punch 31 is forced through the paper to form the hole 30 (shown in Fig. 0) the punch 3th forms the slot 37. (Shown in the last-named figure.) When said punch 31 is raised, said lever 28 is drawn upwardly by the recoil of the spring 38, which spring is rigidly supported at one end from the bracket 29 and is connected at its other end with said lever 28.

To prevent the lower sheets of a bunch of paper from passing between the gage-bar 22 and the die-plates 17, I have provided a sliding bracket 30, which is adj ustablysupported upon said gage-bar 22 and is provided with downwardly-projecting lugs or arms 40 40, the lower ends of which arms extend past the junction of said bar 22 with the die-plates 17, thus precluding the possibility of any of the sheets of paper getting between said gagebar 22 and the die-plates 17.

To prevent the punches 1 from turning in their guides and to limit their vertical movement therein, they are respectively provided with a longitudinal recess 41, while the punchguides are provided with a set-screw 42, the inner ends of which register with and extend into said longitudinal slot or recess, whereby the vertical movement of said punches is limited to the length of said slot or recess.

To prevent the concussion or noise that might otherwise occur as the lever 10 is drawn down by the action of the treadle, I have provided a connecting-link 43 between said lever 10 and the connecting-rod 13 with an elastic cushion 44, which as said rod 13 is drawn down is brought in contact with the base or body 6 of the machine.

I am aware of the fact that in a somewhatanalogous machine a series of punch sets have been supported from a solid base-plate of a machine by dovetail-shaped flanges and grooves located directly beneath the eccentric shaft, in which case it becomes necessary to form the contiguous surfaces of the tongues and grooves of the punch sets, as well as the base-plate, with the greatest skill and care that the same be properly supported in position for work, while by my improvement the several punch sets rest upon the plain upper surface of the base-plate above a longitudinal channel formed for the reception of the refuse matter punched from the paper, and I am enabled thereby to form the die in a separable or detachable plate 17, which is afterward secured to the punch set by screws 18 and may,if worn or broken,be readily replaced with another, and said several punch sets are adjustably supported beneath the eccentric shaft 8 by the stationary shaft 5. For this form of construction a piece of ordinary cylindrical shafting is used for the shaft 5, and an aperture is formed by drilling through the supporting-bracket 4 of the punch sets for the reception of said shaft, whereby the construction is greatly simplified and the side strain produced by the turning of the eccentric shaft against the upper end of the punch, which has a tendency to throw said punch out of the vertical and incline the same in the direction of movement of the eccentric against said punch as the punch is being forced with great pressure through the paper, is much more effectually resisted by supporting the bracket at or near its upper'end than it is possible to support the same at its base alone, as shown in said prior patent, and said diosets are more rigidly held in place.

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

1. In apress-punch of the class described, the combination of a supporting-base, provided with a longitudinal channel; a plurality of punch sets, each set comprisinga punch and a die registering with each other and with said longitudinal channel; a punch-guide; a stationary shaft for adjustaby connecting all of said punch sets together, located above said base; means for locking said sets at any desired point of adjustment in relation to each other, on said stationary shaft; a separate eccentric shaft adapted to bear against the up per ends and simultaneously operate all of said punches, and permit of any desired adjustment of saidpunch setsin relation to each other; and means for turning said eccentric shaft on its supporting-axis, and simultaneously operating all of said punch sets, as set forth.

2. In a press-punch of the class described, the combination of a supporting-base, provided with a longitudinal channel; a plurality of punch sets, each set comprising apunch and detachable die-plate, provided with a die, said punch and die rogisterin g with each other and with said longitudinal channel; a punchguide; a stationaryshaft adjustably connecting all of said sets together; means for locking said sets at any desired point of adjustment in relation to each other on said stationary shaft; an eccentric shaft adapted to bear against the upper ends and simultaneously operate all of said punches; and permit of any desired adjustment of said punch sets in relation to each other; and an operatinglever attached to said eccentric shaft, asset forth.

3. In a press-punch, of the class described,

the combination of a supporting-base;a plurality of punch sets, each comprising a punch, a die registering with said punch and a punchguide, the parts of each set. being permanently connected together; a single stationary shaft connecting I all of said sets together;

means for lockingsaid sets in any desired relative position to each other on said stationary connecting-shaft; a single eccentric adjustable gage-bar for limiting the rear-. ward movement of the paper to be punched;

shaft adapted to bear against and simultaneously operate all of said punches and permit of any desired adjustment of said'punch sets in relation to each other; a longitudinal and a transverse gage-bar adjustably secured to said longitudinal bar; aspring for raising the punches of said several sets when relieved from the downward pressure of said eccentric shaft; an operating-lever connected with said eccentric shaft; a treadle adapted to be operated by foot-power; means for communicating motion from said treadle to the operating-lever of said eccentric shaft, as

downward pressureis applied to said treadle and means for-raising said treadle and reversin g the movement of said operating-lever when said treadle is relieved from downward pressure, asset forth.

4. In a press-punch of the class described, the device herein described for cutting an elongated recess in connection with a hole, consistingin the combination with thepunch proper; of a'vibratory lever pivotally con-.-

nected at ,one end-with the supporting-base, and connected at its" opposite end with said punch; a secondary punch secured to said vibratory lever in close proximity to said firstmentioned punch; dies registering with said punches; and means for simultaneously raising-both of saidpunches when relieved from pressure, substantially as and for the purpose specified.

' Iutestimony whereof I affix my signature in the presence of two witnesses.

PHILIP A. BOWEN. Witnesses:

JAs. B. ERWIN,

O. L. RoEsoH.

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