US72007A - flesche - Google Patents

Description

'Qui-teh faire @anni ffice.

IMPROVEMENT IN PUNOHES FOR FBMING CLASPS,

`ette .Stimuli afina it in that stas' @anni mit making aan 'tf the stmt.

To ALI.` wHoM ITYMAY eoNcERN':

Be it known that I, C. D. FLESCHE, of the city, county, and State of New York, have invented a new and improved Punch; and I do hereby declare that the following is a full, clear, andexact descriptionvthereof,

Y which will enable others skilled in the art to make and use the same, reference beinghad to the accompanying drawings, forming part of this specication.

This invention relates to a device whereby sheet-metal clasps, especially those used on hoop-skirts, but'nlso paper-fasteners and other similar articles, may be cut and bent, or formed by the same punch. Heretofore such articles could only be made by using two different punches-one for cutting the same out of the sheet-metal plate, and another for bending theniinto the necessary shape.-

My invention consists in arranging a punch in such a manner that Vit consists of two pawls, which are firmly connected together, for cutting the metal, while, for bending thefsarne, an in ner sliding punch will be moved out of the stationary cutting-punch, thus making both operations byoneinstrument, and avoiding the removal of the article from the cutting to the bending-punch, which was heretofore necessary. In the accompanying drawing my invention is completely illustrated- A Figure 1 being a front view of my punch, the front plate of-which is removed.

Figure 2 is a vertical cross-section of' the same, taken on the line :c az, iig. I.

Figure 3 is a bottom view of the same. l

Figures 4, 5, 6, and 7, are perspective views of articles made by this punch.r

Similar letters oi' reference indicate like parts. l r f A A' are two steel plates, which areheld together by means of screws or rivets, a a, and to'the 'lower snrface of which the cutters b b are secured. B is -the bending-punch, and isa steelplat'e which slides between the two plates A A. It is guided by two bars, C C, and by a pin, c, which is sccuredto the plates A and A', and passes through a slot, d, in the plate B. spiral spring, e, which fits around a bar, g, on the, plate B, and presses against a knob,f, on top of said bar g, and which is supportedvby or rests upon the upper edges of the plates A A', as shown in gs. 1 and 2, keeps the punch B up, so that the lower end of the slot d is pressed against the pin c (see iig. l.) The lower edge of' the plate B coincides with the ,cutters 6, b on the plates A A',

' and is also provided with cutting-edges, so that the plates A A4 and B form the cutting-punch, and-cut the metal,

which is laid upon a die lrrrder them, into the required shape. It will beseen that when the whole punch is brought down,` by some power which is applied to the plates A A', the inner or sliding punch, B, will be as rm and cut as well as the cutters b b, as the pin c prevents it from being raised. The die (which is shown in red lines in iig. 2,) is counter-sunk in such a manner that when (after the motalhas been cut,) the punch B is brought down by some pressure applied to the knob f, the lower end of the punch B will enter the mortse in the die, and will press the sheet-metal article into the same, thereby bending it into'the required shape.V The lengthof strokeof the slidingpunch is determined by the length of the slot d.

The particular shape and style of punch heretofore shown and described are not claimed by me, as the same have to be adapted to the shape andstyle of Vthe article to be manufactured5-but having this described my invention,

What I claim as new, and desire to secure by Letters Patent, is- The sliding-punch B, in combination with the plates A A', cutters b 6, and spring e, substantially as and for the purpose herein shownand described.

CHARLES D. FLEseHE.

Witnesses:

WM. F. McNAManA, ALEX. F. ROBERTS..

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