US1558289A - Punch - Google Patents

Description

Oct. 20 1925- 1,558,289 y H. RosENBERG l PUNCH Filed April '6. 1925 2 Sheets-Sheet 1 Patented Oct. '20, 1925.

UNITED STATES rrnylyrrin nosnnnnne, or NEW "zonk, N. Y.

.Application ined April 6, v19215. Serial No. 21,014.

To all whom t may concern:

Beit'knownY that l, HYMAN RosnNenRe, a citizenof the United States' and residing atNew York;y in the county of New York` and State of New York, haveinvented certain new and `useful Improvements in Punches@ andIdo hereby declare the following' to bea full, clear,` and eiract description of the invention, suclias will enable others'skilled lin the `art to which it appertains to nialre and use the vsaine. j H

This invention l relatesto improvements in punchesof the) type adapted t be operated liyhand andancrhoredbn abench. {""Tlie Object'inifiewisto provideineans for j punchingworl ofvariable depths such as the canopies of chandeliers and the like, and a more" detailed object is the easy, quick and effective adjustment of the die relative tothe punchy and relative to 'the support of lthe ldie and the adjustment of the die support'relative 'to the `punch ysupport for facilitatingoperation on work of different With these and further objects in ViewV as will inpa'rt hereinafter' become apparent jai'i'd"y in part be stated,I the invention coinprises certainlnovel constructions, combination and arrangements of parts as subsequentin specified and claimed, l In the* accompanying drawings;-

Figure l is a View `in= side elevation of a punchernbodying'the features of the `presentinvention shown adjusted forshallow worl' i Figure 2 is a similar Viewl of the saine shown adjusted for 'deep work. j

Figure '3 is a rearview of the parts as seenin Figurel. i i "Figurete is an enlarged, detail, fragrrnentar-y, sectional elevation of `the punch land die andcontigu'ous parts with the'deep work extension in place. n

Figure 5 is a similar View with the die located f for. shallow work, the` partsV being seen on a still further enlarged scale. l ,Figure `Gis a front or end View of t-he die arbor andwdie detachedonthe saine scale as Figure 5. d

Figure 7 is a vertical` `central section through the punch portion? parts being seen in elevation and the parts being shown on the saine scale as Figure 4.

Referringr tothe drawings by numerals, 1 indicates an vapproprinte baseadapted for anchorage to a bench or other suitable sup` port from which rises the standard 2 arched to forintbe overbanging ann-8 terminating in thesleeve' 4l. forming thepunch head. rlhe punch bar `5 is mounted to reciprocate vertically within the sleeve 4, and atite lower end carries the punch 6j `The upper portion of the bar zis formed intoy a; rack 7 meshing withj a segmental gear 8 :formino; theI inner lend of anAV operating levier 19, which f-lever is pivotally carried byY a pin 10., The upper lportion of the armS :is grooved and formed with'v upstanding side plates 11, 11, tlirouph which the pin 10extends and finds bearing and between which the-lever 9 swings. A set screw-,12de

`threaded through an outstanding lug 13'on i the forward portion ofsleeve 1- andadapted to be adjusted to limit the lforward or operating'strolze' of the leveri). A bifurcated or other Y'appropriate stripper 14 is carried at thelowe'r end ofthe stein 15 `which projects upwardly in a vertical. bore 16in the rear portionof the header sleeve 1. LA set screw- 17 is threaded into engagement with theV stein 15r for locking the stripper 14 in anyldesired adjusted position.

The' standard 2 andarrn 3 are preferably i forrne'd of a central web with marginal flanges, as clearly indicated in' Figure and seen in Figures 1 and 2, and the standard 2 has its web'enlarged at' two points and perforated to formsleev'es 18, 18, spaced verticallyapart, and each anexact duplicate of the' other.` Locking Vset screwslS),

19, are'threaded through the sides of the sleeves 18 to lock' therein the shank 20of an arbor 21 outstanding forwardly` for said' shank. The shank 20 is cylindrical toisnuglv litwithineither of. the z sleevese18, and is adapted to'be rigidly clamped `intoaplace by the actionof the screws 19.

The arbor 21 is made up preferablyofa mainlbarliaving atapered fillet or web 22 beneath to insure adequate capacity. Ipfhe outer or free end ofthe arbor 21 isformed with Ia `vertical here or opening l23 `having an annular odset shoulder 24 forming a seat for the parts to be mounted on the arbor. A set screw 25 is preferably provided as a means for locking the parts to the arbor seated on the shoulder 24.` ris best seen in Figure a sleeve 26 is placed within the bore 23 resting on the shoulder 24e and locked by the set screw 25 when thearbor is intended for location for shallow work, as seen in Figure l. rEhe sleeve 26 is internally threaded and is adapted to be engaged by the threaded shank of a tubular die 27 proportioned and located to cooperate with and receive the punch 6. A set screw 23 is passed through a portion ot the'punch bar 5 to engage the shank of punch 6 and lock the punch in its operative position. er gauge 29 partly surrounds the arbor 2l and is carried by a rod 3() extending through a bore 3l in the standard 2 and clamped in position by a set screw 32 for 'facilitating accurate location of work to be operated upon by the punch 6 and the die 27.

An extension standard 33 is provided with a shank 34 of the same external diameter as the sleeve 26 for enabling introduction into the bore 23 and against the seat 2el'when the sleeve 26 is removed, and the upper end portion oi' the standard 33 is provided with a bore or recess 35 oli the same dimensions as that portion of the bore 23 into which the shank 34 extends, the bore terminating in an annular seat or shoulder 3G. The sleeve 26 is adapted to be introduced into the bore 35 to rest on the seat 3G and to be locked in position by a set screw 37 passing through a portion oi the extension standard The extension standard 33 is preferably tubular and tl e lower end oi the shank ot' die 27 is provided `vith tool-receiving kerls l33, so that a screw-driver or like tool may be introduced either 'through the lower end ot the bore 23 alone or therethrough and throughout the length ot the standard 33 to engage and locate the die 27 for adjustment or removal or final seating there-ot.

lVhen shallow work is' to be opera'iffl upon, the parts ar arranged as sen in Figure l., and the canopy or other work to be operated upon is introduced between the punch G and die 27 incident to lifting ot the punch bar by the rearward swinging o1 the handle 9 to the position seen in Figure 2. The work being proportionally located, the handle iS swung forwardly again, and the rack 7 thus orceddown to the punch operating position, the punch cutting through i the material of the work and ejecting a disc through the bore of the die 27. It `frequently happens that shallow work and deep lwork are required on the same piece of material, or that the same operatormust operate on shallow work for a time and then findsit necessary to work on deep work for a time. When this occurs, it is not necessary tor the operator to go to some other punch as is now commonly the practice, but it is only necessary to loosen the upper sets of set screws i9 and withdraw the shank 20 from the upper sleeve 18 and to insert the same in the lower sleeve and tighten up the set screws 19 for the lower sleeve, and then to adjust the die 27 and the extension standard 33 when the parts are ready to operate on the deep work. The adjustment of the die and extension standard merely consists of loosening the set screw 25, when the parts are in the position seen in Figure 5, removing the sleeve 26 with the die 27 located therein, placing said sleeve in the bore 35, and clamping it thereinV with the set screw 37, and then introducing theshank '34 of extension standard into the bore 23 and clamping it therein with the set screw 25. A canopy or hood Vor other deep work may then be applied over the extension standard and successfully operated upon in the same punching machine which just before was used for shallow work. A substantial saving is thus eifected in the time of the operator and in the expense of equipment in ac'- complishing the work of two punches as now commonly practiced by the utilization ofsleeves, the arbor having a die-receiving opening, and an extension standard having a die-receiving opening at one end and a shank at ythe other proportioned to and mounted in the die-receiving opening of the arbor.

2. In punches, the combination of a standart and arm. the standard having a plurality of shank-receiving sleeves spaced apart vertically, a punch bar reciprocally carried by the arm, a punch carried by said bar, moans for actuating the punch bar, an arbor having a shank proportionedto lit and be sustained by either ot' the sleeves, the arbor havinga die-receiving opening, and an eX- tension standard having a similar die-receiving opening at one end and a shank at the other mounted in the die-receiving opening of the arbor and sustained' thereby, the extension standard being tubular.

3. In punches, the combination of a standard and arm, the standard having a plurality oi shank-receiving sleeves spaced apart vertically, a punch bar reciprooally carried by the arm, a punch carried by 'said bar, means for actuating the punch bar.I an arbor having a shank proportioned to tit and be sustained by either of the sleeves, the arbor having a de-reoeving opening therethrough formed with a Shoulder, e sleeve adapted to it Within said opening and rest on said shoulder., n die detaehablv Carried by said sleeve, an extension standard having an opening proportioned to receive said die` Carrying Sleeve at one end and a shank at the other end having the same proportions of the die-carrying sleeve and mounted in the de-receiving opening of the arbor, the 10 extension standard being` tubular andthe lower end portion of the die being adapted to receive en operatingr tool. 1 v

In testimony whereof a'x my signature.

HEYMAN ROSENBERG.

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