US1482099A - Hand punch - Google Patents

Description

Jan. 29 1924.

1,482,099 w. c. STOPPELWERTH HAND PUNCH Filed July 2'7, 1922 A": i l /2 1 i r Fig.9.

INVENTOR.

Patented Jan. 29, 1924.

warren smrss tease ATNT eiss.)

I WILLIA c. STOPIPELWERTH, or SPRINGFIELD, ILLINOIS. 1

' HAND runcir.

- Application filed July 27, 1922. Serial No. 577,985.,

To all whom it may concern:

Be it known that I, WILLIAM C. S'rorrEL- wnnrrr, citizen of the United States resid ing at 1425 Penn Street, Springfield, in the county of Sangamon and State of Illinois, haveinvented a new and useful Improvement in Hand Punches,of which thefollowing is a specification. 5

My invention relates to hand punches particularly of a type adapted to be used for punching holes of "main springs for phonograph motors. An object of my invention is to provide asimple andeconomical device for the use of the phonograph mechanicin making repairs on the main springs of phonographs and victrolas.

It will be observed that the most frequent type of repair work. necessitated on the part of a phonograph mechanic is the replacement of main springs for the reason that main springs are very often woundup too tight and broken. In this connection with this device a phonograph mechanic.

will be enabled to take the old spring in its broken condition, trim it-ofif at the broken end and merely slip the end into the punch slot and it is ready for punching the new holeinthe spring which is used for anchoring the spring in its casing when normally in use in a phonograph.

It would bev further observed that the holes in the springcan be made from either of two die designs provided; in the structure of this punch. a A comprehensive embodiment of; my invention is illustrated. in the accompanying drawings which form a part of this specification in which similar figures of reference indicate corresponding parts in the several illustrations. In the accompanying drawing I have illustrated the preferred embodiment of my invention in which it will beob- 1 served that the major element of novelty in my invention is found in its simplicity'of pletely assembled hand punch of my inven' v construction and economical arrangement of parts asfor the purpose above mentioned.

In the drawings:

Fig. 1 is an isometric drawing-of the comtion. I i

Fig. 2 is an isometricdrawing .ofthe steel die plate containing the two die designs involved in this construction. Fig. 3 is an isometric drawing of the rectangularpunch used in punching the rectangular hole in springs.

Fig. is an isometric drawing of the cylindrlcal punch having its lower end shaped f to fit the smaller and pear shaped die as shown at numeral 11 in Fig- 2.

Fig. 5 is an isometric drawing of a repaired end of a steel main spring showing how 1t looks with one of the holes punched in" 1t that would be made with punch as shown inFig c, numbe'rallS. Y Fig. 6 is an isometric drawing of steel main spring forphono'gra ah showing how it would look with the rectangular hole punched therein'as would be made with the punch as shown in Fig. 3, numeral 19.

i Fig. 7 is atop view of the hand punch assembled. a

Fig. 8 is an; end view of the same. ,Fig. 9 is the side view of said punch. Referring to the details -ofconstruction and operation of my invention attention is called to the functioning of each part'and method of assembling and using the hand punch. I i I In assembling the parts of the punchwe start with base 2, Fig. 1.

1 In Fig. 1 the parts are assembled as .fol-

The die plate 3 is inserted in the longitudinal slot formed by the parallel guide'sl5 and 16 and detachably secured therein by means of screw 12 at its center. After the die plate is secured into operative position .the top anchoring block, numeral'l, Fig. 1,

is dropped into operative position and guided to its normally fitting adjustment by guiding posts 4. and 5Fig. 1, as well as anchoring posts 6 and 7'. In the operation of this hand punch when the assembling is thus far completed the spring should be inserted at one end of the die guidedinto position by the slotted shape of theanchoring block 1 where it fits down over the'di'e plate 3 after pushing the end of the spring into position to' be punched resting on the die block over the die holes therein. The next thing is to secure the spring in this position rigidly before punching holes therein and this is done by turning thumb screws 8 and 9 down on anchoring posts 6 and 7 until the thumb screws are screwed down tight thus holding spring to be punched. I c

The next step istoselect the punch that will make the desired designof hole in the spring, drop the punch into its correspondingvertical guide slot and t en k a ham= theanchoring' block down tightly on top-of mer and give it a firm blow on top of the punch. To release the spring after the desired hole is punched unscrew the thumb. screws and lift the top anchoring look I slightly just enough to release'the pressure on the spring and Withdraw the spring,

It will be observed that bottom block 2 has two slots along its lower edge adapted to provide a convenient means of holding it in a vise if desired. 7

' Having thus described the nature of my invention what I claim as new and useful and desire to secure by Letters Patent is:

1 In a. hand punch otf 'the' character described a detachable die plateadapted to operate in conjunction with a base casting and an anchoring cap used for holding said die plate detachably secure in a predetermined position when the die is normally used for punching holes in spring material, means comprising threaded bolts, thumb screws and guide pins for holding said elements in operative position as and for the purpose described 2. In a hand punch of the character described having a detachable the plate, a slotted die rest provided with vertical guide pins and securing bolts, an anchor cap provided with vertical guide slots adapted to guide the blow of the punch when in opera-tion.

3, In a hand punch of the class described the combination comprisingan interchangeable and detachable die plate, a dierest with vertical die slots and horizontal guide slots for guiding said. die plate into operative position, an anchorcap:provided with verti cal punch guide holes and means for detachably securing said cap into operative posi- "tlOIl when norm-ally 1-11 use as and for the purpose set forth.

4. A metallic hand punch device for phonograph-spring repair, comprising in combination, a rectangular base die rest, a detachable rectangular die plate containing spaced and respectively rectangular and pear shaped holes serving as die openings through which a hand driven punch is adapted to operate in blanking out holes in phonograph springs such as will conform to the design of the said die openings; a rectangular top anchoring cap provided with vertical guide means and thumbscrew securing means that are adapted to guide and secure said cap into correct position'to hold said die plate, a'cylindric'al hand punch handle integral with a blanking punch pattern of pear shaped design, a rectangular hand punch "handle integral with a smaller rectangular blanking punch pattern with stop means pro ided in an abrupt shoulder between said andle andsaid pattern; said die rest provided with integral guide bars spaced to' e'inb'ra'ceat'thesides said die plate, and provided further with a threaded centrally located set screw hole for securing, with screw, said die plate into operative position preventing longitudinal movement; said die rest provided further with vertical blanking re lease holes in spaced relations and in respectime vertical alignment with the" said die ing out holes in phonograph springs such vas will conform to the design of the said die openings; a rectangular top anchoring cap provided with vertical guide means an thumbscrew securing means that are adapted to guide and secure said cap into correct position to hold said die plate, a cylindricalha-nd punch handle integral with a blanking punch pattern of'pear shaped design, a rectangular hand punch handle integral with a smaller rectangular blanking punch pat tern with stop means provided in an abrupt shoulder between said handle andsa id pat? tern; said die rest provided with integral guide bars spaced to embrace at the sides said die plate, and provided "further with a threaded centrally located set screw hole for securing, with screw, said die plate into operative position preventing longitudinal movement; said die rest provided further with vertical blanking release holes in spaced relations and in respective vertical alignment with the said diedesigns in said die plate, all to suitably provide quickand effective means in'comp'a'ct combination for repairing phonograph springs by1 punchingne'w anchoring holes therein when'needed.

6. In a device of the character described a blanking die plate having spaced designed die holes respectively rectangular and pear shaped forjrepairing phonograph springs, in combination with a rectangular base die rest, a i'ectangul'e'r top anchoring capprovided with vertical guide means and thumbscrew securing means that are adapted to guide and secure saidanchoringcapcentrally located set screw hole for securing, phonograph springs bypunching new anwith screw said die plate into operative choring holes therein when needed.

position preventing longitudinal movement; In witness whereof I hereunto set my said die rest provided further with vertical hand and seal this 24th day of July, 1922. blanking release lIOlQS lII spaced relations WILLIAM C. STOPPELWERTH.

and in respective vertical alignment with v the said die designs in said die plate, all Witnesses:

to suitably provide quick and efiective ELIZABETH L. Eoen'r, means in compact combination for repairing MARGARE'I S. LUTHY.

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