US1468271A - Mechanism for making printing-strip holders - Google Patents

Description

Sept 18 l A. .J BECHTEL MECHANISM FOR MAKING PRINTING STRIP HOLDERS IFiled April 18 1921 3 Sheets-Sheet l .sept 18,1923. 1,468,271`

A. J BECHTEL MECHANISM FOR MAKING vPRINTING STRIP HOLDERS h Filed April 18 1921 Sheets-Sheet 2` SEP- 18 A. J BECHTEL MECHANISM FOR MAKING PRINTING STRIP HOLDERS Filed April 18 r 1921 3 SheetS-Sheel'l 5 ALBERT J. BECHTEI., or SHAKER HEIGHTS, C11-Io, assIGNort To THE AMERICAN MULTIGBAPE COMPANY, or CLEVELAND, Cino,` 'a CORPORATION or omo.

.,.MECHANISMIFOR ING PRINTiING-S'IRJIIP.HOLDERS. .I

.i Application led April 18, 1921. SerialfNo. 482,467.

To: all who@ it concern: Be it known that I, ALBERT J. BECHTEL, a

citizen of the United States, residing at Shaker Heights, inthe county of Cuyahoga and State of Ohio, have invented a certain new and .useful Improvement in Mechanism for Making Printing-Strip Holders, of which the followi is afull, clear, and exact description, re erence being had to the accompanying drawings.

This invention relates toa punch and d1e for making printing plates adapted to be used in printing, addressing, or similar machines.

One of the objects of the invention is to provide a punch and die by means of which a printing strip holder may be provided with engaging members whereby a character printing strip may be secured upon the holder.

More particularly, it is an object of this invention to provide such punches and diesas may efficiently produce' sheet metal holders having rows of raised bosses connected with the holder by narrow necks in line of the row while otherwise disconnected from the holder.

The invention will be apparent from the following description taken in connection with the accompanying drawings, wherein Fig. 1 is a front elevation of the machine partly in section, showing it in 1nactive position; Fig. 2 is a view similar to Fig. 1, showing the operation' of punching the plate; Fig. 3 is a fragmentaryv section through the punch and die; Fig. 4 is a view similar to Fig. 3 with the punch disposed above the die; Fig. 5 is a plan ofa portion of aircompleted plate; Fig. 6 is a perspective view of the punch; Figs. 7 and 8 are sections on l.lines 7-7, 8 8, Fig. 5, respectively;

Fig.- 9 is an enlarged fragmentary viewshowing the punching operation; Fig. 10 is a section on line 10-10, Fig. 1.; Fig. 11 is an enlarged fragmentary section through the die and punch; Fig. 12 is a perspective view partly in section showing a part of the die; and Fig. 13 is a fragmentary view of the plate holder showing a struck-up projection.

Referring to the drawingsl by reference characters, I havey shown a punch and die comprising a bolster plate 10 having flanges 11 thereon. The bolster plate.A is shown as provided with aligned recesses 14 extending of the die block is slotted to provide a' therethrough, each recess comprising eni larged upper and lower cavities 15 connected by a restricted opening 17 Secured upon the bolster plate, I have shown' a die. 20 indicated asv provided with apertures 21 coaxial with the apertures 14 in the bolster plate. The apertures in the plate and' die may be arranged in longitudinal and transverse rows as shown. The top lurality of longitudinally extending recelses 25, and a plurality of transversely extending recesses 26.- thev recesses 26 being shown as of greater depthv than the transverse recesses 25.

A plurality of forming bars are adapted to be fitted in the recesses 26. The forming bars 30 have their upper surface substantially plane with the upper face of the die and the sides of the strip are beveled as at 31.

It will be noted that the transverse reand 16,

cesses 26 are disposed intermediate the apertures 21, while the horizontal recesses 25 are arranged to intercept the apertures 21 to thus remove opposed portions defining the end wall of each aperture 21. The portions 35 remaining after the slotting operation, provide cutting edges, the function of which will be later described.

I have indicated a plurality of plungers 40 slidbly mounted in the apertures 21, each plunger being provided with an enlarged head 41, tting the recesses 15.- The head provides a shoulder 42 which abuts against the lower portion of the die 20 when the latter is in assembled position, to limit the upward movement of the plungers. Within the aperture 14, I provide a plunger 45 having an enlarged central ortion l46. The apertures in the bolster p ate are closed 'by means of a plate 47 which also serves to hold in place, springs 48, interposed between the plate 47 and the shoulder 46. These springs normally urge the plungers 45 and as shown in Fig;

fitted -in the recess 51. These punchmembers comprise a cylindrical portion 53 having an enlarged head 54 slotted as at 55, The lower end of the punch'compr-ises a central portion' 56 having opposed side-portions 57 beveled 55 is arranged intermediate the parallel lines 58 delining the beveled portions 56 of the punches. This arrangement results in correct alignment, so that the circular cutting edges 59 of the punch accurately coact .with the cutting edges 35 of the die.

A suitable stripper block is shown as mounted on pins 71 slidable in the head 49. This block is normally urged down by springs 72.

The unch and die which I have described is particularly adapted to operate on address plates. These address plates, designated 84, usually have upturned end portions 77, and in order to accommodate such portions, I have indicated the stripper block as recessed as at 78. The address plate is centered with respect to the die by pins 80.

The operation of punching the address plate will now be described. The plate is placed upon the die and as the punches descend, the edges 59 of each punch shears the metal along the edges 35 of the die.- Continued movement of the punchcauses the uncut metal between the cut portions to tear or shear along lines 85, Fig. 5, the beveled portions 57 coacting with `the beveled portions 31 of the former 30, facilitating this shearing or tearing. The metal above the former 30 will be undisturbed, thus leaving portions in the plane of the plate proper intermediate the punched up portions. By

'using the spring pressed plungers, the metal vof the struck-up projection remains flat,-

as shown at 90.

After the operation is complete, the punch .is raised, the stripper block stripping the Vplate holder lfrom the punches. The springs,

48 acting on the pins 40 cause the plate holder to be lifted, as shown in Fig. 4. If desired, suitable tongues, such as 87, may be struck from the address plate by the punches 91. v

. Having thus described my invention, what versely and longitudinally, the transversel recaen alignment of the chamfered edges of the punches.

8. A die block having a plurality of apertures anda slot intermediatethe aperturesv having a forming member inserted therein and another slot intersecting the first'slot.

4. In a punch and die, a die block havin-g apertures and plungers in said apertures, means to urge the plungers in one direction, said plungers having a shouldered portion to limit their movement in one direction, said die block being longitudinally slotted with the slots intersecting the apertures, and y transverse slots intermediate the apertures," said transverse slots having forming bars therein. y

5.-In a punch and die, a bolster plate having a plurality of recesses therein, said recesses bein countersunk at both ends, shouldered pins fitting said countersunk recesses, a closure plate adapted to close one end of the recesses, a spring between the closure plate and the shoulder on said pins, and a die block having. apertures aligning with the pins.

6. In a punch and die, a bolster'plate having a p urality of countersunk recesses, pins tting said countersunk recesses, a closure plate adapted to close one end of' the" recesses, a spring between the closure plate and the shoulder on said pins, a die block having apertures aligning with the pins, and plungers inthe die block apertures.

7. In a punch and die having aperturestherein, spring-pressedV plungers in said apertures, the die block being longitudi- -nally slotted with the slots intersecting the apertures, and punches co-operating with said die block, said punches having beveled portions in line with said slots.

` 8. A die block having a plurality of 'apertures arranged in longitudinalv and transverse rows, said block being slotted trans versel and longitudinally, the transverse' slots eing disposed' intermediate the apertures and having forming members inserted therein, the longitudinal slots intersecting the apertures and being themselves intersected by the formingmembers.

9. In a punch and die, a die including a block having Aa plurality of apertures'ai`- ranged in longitudinal and transverse rows,

saidblock being slotted transversely and longitudinally, the transverse slots be' g* disposed intermediateu the apertures and having forming members inserted therein, the longitudinal slots intersecting the'aper-= tures and being themselves intersected by the forming members, said apertures havin spring pressed plungers `litted therein an the punch having plungers aligned with the rst mentioned plungers.,

10. A die block having a plurality of aper-A tures arranged in longitudinal and trans-o verse rows, said block being slotted transversely and longitudinally, the transverse slots being disposed intermediate the apertures and having forming members inserted therein, the longitudinal slots intersecting the apertures and being themselves intersected by the forming members, said apertures havin spring pressed plungers fitted therein an the punch having plungere rality' of transversely extending' strips disposed between the pins in saidy die.

lin testimony whereof, il hereunto atx my signature.

ALBERT J'. BECHTEL.

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