US231254A - baackes - Google Patents

Description

J. M. E. BAACKES. Dies for Pointing Wire Nails..

No.2-31,254t. Patented Aug. 17,1880.

UNITED STATES PATENT OFFICE.

JOHN M. E. BAAOKES, OF CLEVELAND, OHIO, ASSIGNOR TO THE Jl) NAIL COMPANY, OF SAME PLAGE.

DIE FOR POINTING WIRE NAILS.

SPECIFICATION forming part of Letters Patent No. 231,254, dated August 17, 1880.

Application led February 19, 1880.

To all whom it may concern Be it known that I, J oHN MICHAEL E. BAAOKES, of Cleveland, county of Cuyahoga, State of Ohio, have invented or discovered a new and useful Improvement in N ail-Pointin g Dies, (Gase B 5) and I do hereby declare the following to be a full, clear, concise, and exact description thereof, reference being had to the accompanying drawings, making a part of this speoication, in which-like letters indicating like parts- Figure 1 is a horizontal sectional view in the plane of the line of feed longitudinally through a pair of my improved dies, illustrative of their relation to the griping dies, (shown also in section,) and to the header, (shown in elevation.) Figs. 2 to 6 show, in perspective, end views of different forms of dies, but all illustrative of the same feature of improvement in modilied forms; and Fig. 7 illustrates the forms of points which the dies are adapted to make.

The style of nail to the making of which my improved dies are particularly applicable is made from wire withra cut, chisel, or wedge shaped point,the Width of which is no greater than the diameter of the wire from which it is made 5 but for the purposes of the present invention any sized wire suitable for making nails may be employed.

As illustrated in 'the drawings, the wire 'w is to be fed intermittently from the left, between the griping-dies D, which have each a half-round cavity for the purpose5 and ifa screw-head is desired, a countersiuk, s, is made, so that the projecting end s' of the wire may, by a header, H, be upset therein 5 but other forms of heads may be made by the use of known forms of headers and anvil-dies.

From the projecting end of the headed wire, as fed forward, a nail, az, is cut off and made with a cut, wedge, or chisel shaped point by the use ofthe dies B5 and as all the dies shown do not differ in any material respect except in the form of the cavity by which proA vision is made for the nail to clear itself or be cleared from the dies, I have designated them all by the same letter.

The dies, whichever form be used, are used in pairs, and with cutting-edges which are duplicates of each other, so that the same cutting action will be effected from opposite sides of the nail-blank. These dies are to be mounted in die-holders and operated by a reciprocating motion in the direction of their length to and from the central line of feed, and the devices proper for this purpose and for performing the other usual functions of nail cutting and point ing machines are so well known in the art that I do not deem it necessary to show or describe the same. They may be of any known suitable style, form, or construction.

Each die B has one or more abutments, a, by which, while allowing the dies to make the necessary length of stroke, to prevent the cutters c e from injuring each other. These cutting-edges work in line with each other, and the cutters c are intended for severing the nail n2 or (if unheaded) the nail-blank from the parent wire w. At the same stroke at which this is done a pair of diverging cutters, e, on the forward end of each die cut ofi' a wedgeshaped or tapering section from the top and bottom or two opposite faces of the nail-point, so as to leave two sloping faces, t, terminating at the point and giving the chisel shape desired.

By setting the dies so that the central point of junction of the cutters c e shall be in line with the axial line of the wire, the slopes of the upper and lower faces of the nail-point will be the same 5 butin order to make a clinchpoint I set the dies a little above or below the point thus indicated, so as to cut one sloping face, i', a little longer and deeper than the other, i2, Fig. 75 but such variation from the center line should be less than one-half the diameter of the wire in order that the cutters c which cut the shorter slope, i2, may support properly the nail-blank on that side as against the tendency of the other cutters e which cut the longer slope (the power and resistance then being greatest on that side) to deflect the end or point of the nail laterally in the opposite direction. In this way a clinch-point may be made such that when the nail is driven into wood the longer slopen?, will cause it to bend as it enters the wood, and by taking a curved path in the wood secure in part the results of clinching.

IOO

It is an important feature of these dies l that the cavity n between thc cutters e he carried back a distance equal to or greater than one-half the diameter of the wire. to the end that little or no compressing action shall take place edgewise on the chisel-point, such as to convert it into a pyramidal point.

Dies having,r cutting-edges e e and a cavity between the cutters e such as will swage and compress the material laterally and thereby form two sides of a pyramidal point are old but my dies differ from these in the absence of any swaging walls or surfaces between the cutters e, such as will destroy or materially lessen or impair the chisel shape which the eutters e are adapted to give. These cavities u may have any desired shape with referenee to the function indicated, and he made in any suitable Way; but by preference they should be deep enough or carried back far enough so that if one nail sticks in the die it will he forced back and out oi' the way by the nexty nail and without injury to or interfering' with the cutting),` of the latter. In this way the nail mary be readily discharged from the dies. These cavities may he milled out, as in Figs.

fasti-Wj" i.,

2, 4, and 5, or planed, as in Fig. 3, or a hole, n', may be bored, as in Fig. 6, and the intermediate metal he planed out; but I do not limit myself to any particular form of cavity or way ot' makintr the same, provided it be such as to secure the attainment ofthe functions as above indicated.

I claim herein as my invention- A pair of' cutting-dies, B, each provided with a cutter, c, l'or conjointly cutting off a nail from a rod or wire, and each having also two cutters, r e, divergring,r from cutter c, for shaving two sides ot` the nail obliquely, so as to produce upon it a. wedge-shaped extremity, the back wall ot' the cavity, between the two cutters r fr, beiingr formed so far back of the cuttin g-ed ges as to prevent an edgewise colnpressive contact thereotl with the edges of the wedge'shaped extremity, substantially as set forth.

In testimony whereof' I have hereunto set i my hand. .IUIIN' MICHAEL E. BAACKES. Y

Witnesses WM. E. JUsmNG, t. l. BEACH.

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