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‘Sept. 1o,v194e.' J, A, JONES ' 2,407,427 SELF-LOCKING WEDGE Filed Oct. 11, 1943 . James 4 (/0096, 2,407,427 Patented Sept. 10, 1946 UNITED STATES PATENT OFFICE 2,407,427 SELF-LOCKING WEDGE James A. J ones, Fayetteville, Ark. Application October 11, 1943, Serial No. 505,834 6 Claims. (01. 306—33)~ 2 1 of Figs. 1 and 5, respectively, showing a modi?ed form of attachment of the locking member to the wedge; The invention is designed primarily for use as a means of insuring the secure attachment of a tool, for example a hatchet, hammer or axe, upon Figure 8 is a vertical side elevational view its handle, but is capable of use with beneficial re sults in many other relations where a tight and 5 (partly broken away) of a tool with my locking device applied thereto, the locking device being secure joint between a handle, rod, shank or like indicated in dotted lines; and member of wood or other suitable material and Figure 9 is a fragmentary central vertical sec its head, socket or cooperating coupling may be tional view through the locking device in Fig. 8, necessary or desirable. taken on a plane at right angles to the plane of Fig. 8 and showing the locking device in its look One of the principal objects of the invention is the provision of an improved locking device for ing position. use in the connection of a handle, rod, shank or like member and its head or socket which may be Essentially my invention comprises a locking device, preferably in the form of a wedge I of easily and inexpensively manufactured but which will be effective and durable in producing and 15 usual tapered con?guration end to end, with sub stantially flat side faces 2, 3, associated with a maintaining a tight and secure connection. locking member comprising arms 4, 5 (Figs. 1 Another important object of the invention is and 2), M, I5 (Figs. 3 and 4) or 24, 25' (Fig. 5) the provision of a locking device which may be secured to- wedge I and normally projecting out sold as a unit, completely assembled with its look ing means and ready for use, the insertion of the 20 wardly therefrom on its opposite sides. The wedge I may be made of malleable iron or other device into position placing the locking means in suitable material. while the locking arms ll, 5 ‘or to active locking relation and thus rendering it arms I4, 55, or 24, 25, may be of wire possessing unnecessary to insert an additional locking ele su?icient strength and resiliency. to have a tend ment after the insertion of the locking device. Another object of the invention is the provision 25 ency to stand outwardly from the wedge and bite into the wood or other material in which they of a self-locking wedge which may be handled are designed to exert a locking action. Arms and applied in the same manner and with the 4, 5 (or arms lél, I5, or 24, 25') may be formed same facility as the ordinary wedge heretofore integrally as a unitary locking member, or as used in endeavoring to tighten and render secure separate arms welded or otherwise securely an various joints, such, for example, as the connec chored to wedge I; the integral form of construc tions between axes, hatchets, hammers and the tion is pref-erred. because it is easier to manufac like and their handles, and which, when applied, tureand assemble and is less liable to become de will produce a tighter and more secure and lasting tached after having been placed in position on joint or connection. A further object is the provision of a wedge for Wedge I. Each form of my invention illustrated in the tool handles or the like which is self-locking and drawing includes such integral form of locking will not work loose or become ineffective through member, respectively designated A in Figs. 1 and repeated and long-continued use of the tool or 2, B in Figs. 3 and Li and C in Fig. 5. Each locking other article which it is designed to hold secure. Other objects and advantages of the improved .. member comprises a pair of arms 4, 5 (or I4, I5, device which constitutes my invention will be or 24, 25) connected by an intermediate neck ‘6 apparent from the accompanying speci?cation engaging wedge I in such manner that the arms, and drawing, wherein: at their free end portions, project outwardly from Figure 1 is a side elevational View of the pre Wedge l and beyond the side faces thereof, As a ferred form of my improved locking device; convenient and effective manner of securing the Figure 2 is an edge elevational view of the de arms 4, (or Iii, I5, or 2d, 25) to wedge I, the vice illustrated in Fig. 1; locking member A (or locking member B or C) Figures 3 and 4 are views similar to those of may be passed through an aperture ‘I provided in 1 and. 2, respectively, of a modi?ed form of wedge I for this purpose and may be ?rmly an 50 my locking device; chored in the walls of aperture 1 by bending Figure 5 is a central vertical sectional view, locking member A (or locking member B or C) to generally similar to the edge elevational views of form an anchoring loop 8 seated in. grooves 9 in Figs. 2 and» 4, of another modi?ed form of em the side walls of wedge I, with its neck 6 in aper bodiment of my invention; Figures 6 and '7 are views similar to the views 55 ture ‘I. Although not essential, welding of loop 8 ) . - . 2,407,427 3 or neck 6, or both, in position may be employed for further security, if desired. It is to be understood that the wire of which locking members A, B and C are formed may be As an alternative manner of anchoring locking _ ?at or of any other suitable cross-sectional shape member A (or looking member B or C) to wedge or con?guration, my invention not being limited I, neck 6 may be engaged in a notch ID in the to the use of round wire. It should also be un ‘pointed or thinner end II of wedge I and loop 8 derstood that the wedge I may be made in dif seated in recesses or grooves 9 in its side walls, as ferent sizes and that the locking member A, B or shown in Figs. 6 and 7. C is capable of variation in size relative to the The arms 4 and 5, I4 and I5, and 24 and 25, of size of wedge i. It should also be noted that the locking members A, B and C, respectively, when 10 notch I0, shown in Fig. 6, is enlarged for the attached to wedge I in either of the ways de sake of clarity and need only be of su?icient width scribed above, are bent, from the free ends of to permit the entry of neck 6. loop 8, inwardly into slot I2 and projected I claim: through slot I2 into locking position. The parts 1. A device of the character described com of each loop 8 which extend along the side faces prising a wedge having a slot therein and a plu of wedge I seat in the grooves 9 to prevent their rality of locking arms each secured at one end to projection beyond the surface of either of such said wedge in its relatively thin portion and pro side faces. jecting through said slot and beyond the opposite In looking member C, the simplest form of my faces of said wedge in the direction of the thicker device (shown in Fig. 5), the arms 24, 25, bend ' end of said wedge. 1 only to form loop 8 and project directly from 2. A device of the character described com loop 8 through slot I2 and outwardly from slot I2 prising a wedge having a slot therein and lock to active locking position, arms 24, 25, crossing ing arms each secured at one end to said wedge each other within slot l2 and, with their loop as in its relatively thin portion, said arms extending a base, forming a pair of resiliently-mounted "‘ in crossed relationship through said slot with spring arms, their free ends projecting beyond the opposite In looking member B, the form of embodiment faces of said wedge in the direction of the thick shown in Figs. 3 and 4,. arms I4, I5, bend er end of said wedge and substantially in align through slot I2 and, by a reverse bend I4’, I5’, ment with said slot. form a spring seat of greater strength and resil- " 3. A device of the character described compris— iency for the active portion of each of the arms ing a wedge having a slot and an opening there [4, I5, which project outwardly from slot It in substantially straight locking portions which in, said opening being adjacent the thinner edge of said wedge, and an integral locking member stand substantially at right angles to the planes comprising a pair of locking arms connected by a of the Wider faces of Wedge I on Opposite Sides 3-"- neck portion and a loop portion, said neck por thereof and substantially in alignment with slot tion being seated in said opening and said loop I2. portion embracing a portion of said wedge be In looking member A, the preferred form of tween said cpening and said slot, said arms ex my invention (shown in Figs. 1 and 2), the con tending through said slot with their free ends v, struction is generally similar to locking mem ‘ projecting beyond the opposite faces of said wedge. bers B and C, its neck 6 being anchored in aper ture ‘I, its loop 8 being seated in grooves 9 and 4. A device of the character described compris its arms 4 and 5 being bent inwardly in crossed ing a Wedge having ?at inclined faces and tapered relation through slot I2 and reversely bent, at 4' ,I side edges, a slot through said faces substantially and 5’, respectively, and extending, from bends ‘ on its medial longitudinal line and a notch in the 4', 5' through and outwardly of slot I2 toward the thicker end of wedge I. In looking member A, however, the free ends of the arms 4, 5, in~ thinner tapered edge substantially in longitudinal stead of projecting from the reverse bends 4’, 5', substantially straight through slot I2 and be yond the respective outer faces of wedge I sub stantially at right angles to the wedge faces, as alignment with said slot, and an integral look ing member comprising a pair of locking arms connected by a neck portion and a loop portion, said neck portion being seated in said notch and said loop portion embracing said wedge between said notch and said slot, said arms extending through said slot. with their free ends projecting beyond, the opposite ?at inclined faces of said effective ends of the locking arms 4, 5, are posi- i‘ wedge. tioned on opposite sides of the axial line of slot 5. A device of the character described compris ing a metal wedge having a slot therein and an I2, the remaining portions of arms 4, 5, stand ing substantially in alignment with slot I2. integral resilient Wire locking member compris This configuration of arms 4, 5, gives the spring ing a pair of locking arms secured ts said wedge locking member A spiral stress and the arms 4, 30 at its relatively thinner portion with their free ends extending through and projecting beyond 5, greater penetrating action when wedge I is driven into position, for example into handle 33 said slot in the direction, of the thicker end of said wedge, the terminal portions of said free of tool 3i, making the ends I3 of arms 4, 5, bite in looking members B and C, are formed with a twist or spiral curve in each arm, so that the more deeply into the Wood of handle 3!). The twisting effect of the spiral and the bending 65 ends being sharpened. 6. A device of the character described com prising a wedge having a slot therethrough and strain at the reverse bends 4', 5’, continue to a notch in its thinner tapered edge, and locking exert themselves when the wedge I is seated, thus arms each secured at one end to said wedge in increasing the locking action of wedge I and the said notch, said arms extending through said slot di?iculty of its withdrawal. In order to increase their biting action the 70 with their free ends projecting beyond the oppo~ site faces of said wedge toward its head portion. active ends I3 of arms 4, 5 (or of arms I4, I5, or 24, 25) of locking members A, B or C, respective ly, may be pointed or sharpened. JAMES A. JONES.