US217310A - Improvement in envelope-machines - Google Patents

Description

H. J. WICKHAML Envelope-Maohne.

No. 217.310; Patented. July 8,1 87L 9.

AMWW- c %lg UNITED STATES PATENT OFFICE.)

HORAGE J. WICKHAM, OF HARTFORD, CONNEOTICUT.

IMPROVEMENT IN ENVELOPE-MACHINES.

Specification forming part of LettersiPatent No: 217310, dated July 8, 1879 application filed May 19, 1879.

To all whom it may concem:

Be it known that I, HORACE J. WICKHAM, of Hartford, ,County of Hartford, State of Connecticut, have invented an Improvement in Mechanism for Edge Cuttin g Envelope- Blanks, of which the following description with the accompanying drawings is a specification.

This invention relates to mechanism for cutting` or preparing the edges of envelopeblanks in such manner that the forned envelope, when sealed with mucilage or other usual gun, cannot be opened without destroying the edge so cut or prepared, the object of this apparatus being the production of a blank for a safety-envelope which shall add' to the security of registered or other packages being transmitted from place to place, by being able to readily detect whether or not the envelope has been tampered with.

In this my invention I employ a reciprocating stamp or head provided with a series of punches and edge-pinking cutters, they co-op- 4 erating with a series. of edge-pinking cutters provided with holes just within their cuttin gedges to receive the said punches, a suitable stripper being employed'to prevent the envelopc-blank following with the punches when they are being withdrawn therefrom, and suitable guides to correctly place the said envelope-blank in correct position with relation to the punches and cutters.

Figure 1 represents, in' end view, one of my blank-cutters, a portion of the framework being'broken away to save space upon the drawings. Fig. 2 is a front elevation of Fig. 1; Fig. 3, a section on the line a; x, Fig. 2; Fig. 4, a section through the punch, pinking cutters, stripper, and supporting-bed at one end, (see dotted line y, Fig. 3;) Fig. 5, an underside View of the reciprocating head and a series of punches and pinking-cutters at one side of it; Fig. 6, a top view of the pinkingcutters attached to the stationary bed, and Fig. 7 a plan of the blank operated upon by this machine.

The frame a and reciprocating slide b are and may be of any usual or suitable Construction. In practice, the actuatin g devices for the slide are those common to the well-known Stiles press, wherein the slide is reciprocated by means of a shaft at the top of the frame, it being provided with an eccentric connected by a pitnlan with the slide b, the driving-pulley of the press being, by means of a suitable clutoh and treadle, placed under the control of the operator, so as to stop the machine as the slide reaches its most elevated position, to afl'ord time for the introduction of the envelopeblanks to b'e cut. This slide b, reciprocated in guideways c, has at its lower end a cross-bar, I

(l, having at each of its ends an adjustablyheld series of punches., e, and a pinking cutter, f, having, as herein shown, a series of V- shaped projections, 3, the punches standing in the spaces between the said projections 3, as in Fig. 5.'

The bed or support q for the envelope-blank has attached to it the stationary pinking-cutter h, (shown in top view, Fig. 6,) its edge being provided with V-shaped hardened projections 4, so as to form between them V-shaped notches to receive the projeotions 3 of the outter f, and near the wider parts of these projections 4 are holes e' to receive within them the punches e, thus enabling the plain edges 'i of the blank (shown at Fig. 7) to be simultaneously notched or pinked and punched or perforated through the said notched parts, as at 2 it being understood, however, that both edges of a number of envelope-blanks are operated upon and pinked and cut at each descent of the slide.

.The stripping-platej, havingits edge notched and provided with holes to correspond with the punch holes in the cutter h, acts to prevent the blanks being cut from sticking upon the punches as they are being withdrawn from the blank, which would tear ofi the pinked edge represented at i for the holes e weaken the said pinked edges.

To insure the correct placing of the blanks in position with relation to the cutters and punches, I have placed guides l l upon the bed, which, as the blanks are passed between the bed g and stripping-plate, act against the corners 8 of each blank of the pile of blanks and place the edges@ in the proper position to be pinked and punched.

The punches 6 will, preferably, be held in position by a key, m, adjustably Secured by screws m, the edge of the key acting upon flat.

tened sides of the upper ends of the punchcs,

LS shown in Fig. 4. The rows of pnnches and blanks, as described, a series of punches and pinking-cutters aittaehed to SL novable head, combined with a stripper and a bed die or cutter having its cutting-edge shaped to match with the projecting cutting portions 3 oarried bythe head, and provided with openings e* for the pnnches, so as to serrate the edges of the blanks and punch holes along said serrated edges, 21 11 substantially as described.

2. In a machine for serrating the'edges of envelope-bl mks, as described, the inclined pinking-cutters above and below the blanks, and a stripperlato, combined with guides to stop the blanks, as described, in correct position With relation to the puches, all substantially as set forth.

In testimony Whercof I have signed my name to this specification in the presence of two snbscribing witnesses.

HOBACE J. WIGKHAM.

Witnesses:

FRANCIS T. NIcHoLsoN, G. W. GREGORY.

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