Jnited States Patent Office

JNITED STATES PATENT OFFICE. JOHN M. E. BAACKES, OF CLEVELAND, OHIO, ASSIGNOR TO THE HP NAIL COMPANY, OF SAME PLACE. NAL POINTING D. E. SPECIFICATION forming part of Letters Patent No. 231,255, dated August 17, 1880. Application filed February 19, 1880. To all whom it may concern: a half-round cavity; and if a screw headed 5o Be it known that I, JoHN MICHAEL E. nail, n, is desired I make in these griping-dies BAACKES, of Cleveland, county of Cuyahoga, a countersink, s, into which the projecting end State of Ohio, have invented or discovered a s' of the wire may be upset by a header, H, in 5 new and useful Improvement in Nail-Pointing the making of the head; but other known Dies, (Case A;) and I do hereby declare the forms of like devices may be substituted for 55 following to be a full, clear, concise, and exact making other shaped heads. description thereof, reference being had to the The dies B, which more particularly illus accompanying drawings, making a part of this trate my invention, are mounted in any suita Io specification, in which-like letters indicating ble die-holders, so as, by suitable known de like parts vices, to receive each an endwise reciprocating 6o Figure 1 is a sectional view, in the plane of motion to and from the line of feed of the the line of feed and lengthwise of the dies, of wire v. a pair of my improved pointing-dies, in con Each die has, by preference, a square abut I5 nection with a pair of griping and anvil dies ment, a, of any desired form, such as will pre and an upsetting or heading die. Fig. 2 is an vent the cutting-edges e from injury by strik- 65 end perspective view of one of my improved ing each other with any serious force. The pointing-dies, such as is adapted to the point sloping faces e of these dies, according as they ing of a nail of the style shown in Fig. 4; and slope more or less, shape the wedge-like points 20 Fig. 3 is a like view of a like die, but adapted of the nails. If these faces were made smooth, to the making of a somewhat longer point, such the strain on the wire in the direction of its 7o as is shown in Fig. 5. length caused by the wedge-like action of the My present invention relates to certain im dies B in doing their cutting or severing work provements in dies for making a chisel-pointed would be so great and the frictional resistance 25 nail from wire, and in which the dies have a of the nail on the Smooth sloping facese would reciprocating endwise motion to and from the be so little that the nail would often be broken 75 line of feed in such manner as at each stroke from its parent wire before being completely to cut off and point a nail or nail-blank, as the severed. This would resultin a rough, ragged, case may be. or irregular blunt point, which would be highly 3o As illustrated in the drawings, I have ar objectionable. To prevent this tendency of ranged these dies to sever and point the nail the nail to fly off or break away before it is 8o as the last step in its manufacture. The par properly severed, I make slight corrugations, ticular feature which in such dies I claim such as are indicated at e, in these sloping herein relates to making the sloping faces of faces of the dies, and make them of such depth 35 the dies which form the wedge-shaped or that as they compress the metal and forge chisel points with slight ridges or corrugations down the wedge-shaped point such corruga. 85 or other uneven form, such that they will take tions will embed themselves in the sloping and retain a bite or engagement with the slop faces of the point and take so secure a bite or ing faces of the nail-point until it is properly gripe thereon that the nail which is then be. 4o severed, and by virtue thereof will prevent the ing made cannot move endwise and away from nail from breaking off from its parent wire as its parent wire until it is properly severed. 9o a result of the wedge-like action of the dies, In this way the sloping faces of the chisel end especially as the point of complete severance are brought down to a good well-defined point, is approached. In this way a well-finished and a marketable product is secured. 45 point is secured. - The faces of the dies should be wide enough At v I have shown the wire, which is fed and the cutting-edges long enough to provide 95 in by means of any suitable intermittent feed for the slight spread of the metal as it is com from the left, and between an ordinary pair of pressed on opposite sides. griping and anvil dies, D, each of which has The length of the sloping faces of the nail 2 231,255 point may be comparatively short, as in Fig. and to do this by the same die-faces which do 4, or long, as in Fig. 5, or otherwise varied at the swaging. Hence pleasure, and dies such as are thus described claim herein as my invention may be used on any size wire suitable for nail 1. In a pair of dies adapted to cut and swage making. a wedge-shape point and having a reciprocat Instead of corrugations, as described, other ing motion to and from the line of feed, the mode of roughening adapted to give like re die-faces ', roughened or corrugated, substall sults may be employed on the faces '. Ma. tially as and for the purposes set forth. 25 chines adapted to the operation of such dies 2. The dies B, having each an abutment, a, O are so well known in the art that I do not den a cutting-edge, ', and a roughened or corru it neuessary to describe them. Such machines gated swaging-face, e, substantially as set may be of any suitable construction, and ad forth. ditional appliances for doing other parts of the In testimony whereof I have hereunto set work or additional work may be added at my hand. pleasure, as may be desired. J(). IN MICHAEL E, BAACKES, My principal object, it will be understood, Witnesses: is to hold the nail until it is properly severed W.M. E. (USHIN, and while its wedge-like point is being swaged, C. B. BEACH. Y .

Load more