US912784A - Mallet. - Google Patents

Description

C. H. B'AYLEY.

MALLET.

APPLIOATION FILED my 22, 1905.

912,784. Patented m. 16, 1909.

Wax-AMA UNITE STATES PATEN OFFXOE.

CHARLES H. BAYLEY, OF BOSTON, MASSACHUSETTS, ASSIGNOR 'lO UNITED SHOE MACHINERY COMPANY, OF PATERSON, NEW JERSEY, A CORPORATION OF NEW JERSEY.

MALLE T.

Application filed May 22, 1905.

Specification of Letters Patent.

Patented Feb. 16, 1909.

Serial No. 261,684.

To all whom it may concern:

Be it know that I, Crmnmas H. BAYLEY, a citizen of the United States, residing at Boston, in the county of Suffolk and Commonwealth of Massachusetts, have invented certain Improvements in Mallets, of which the following description, in connection with the accompanying drawings, is a specification, like reference characters on the drawings indicating like parts in the several figures.

This invention relates to mallets, more particularly to a construction peculiarly suitable for pounding dies for cutting leather and similar material, although it may be of use in many other arts, as in those pertaining to the working of wood, freestone, marble, etc. Mallets for these purposes have heretofore been in use in which the head is composed of a plurality of courses of some material capable of producing a non-vibrant blow, which courses are compressed, hydraulically or by any other suitable means, and then confined upon the mallet handle in any convenient manner, as by passing the handle through a centrallyarranged opening in the courses and providing means on said handle for locking said compressed courses in place. Although a mallet constructed on this principle performed its desired functions and found great favor with the trade, it was objectionable in that its life was not of great duration, for the reason that after some use the repeated blows .ended to enlarge the central opening in the compressed courses forming the head, thus displacing them laterally and leaving them loose upon the handle, requiring consant renewal.

()ne object of the present invention is to obviate this objectionable defect in mallets using such a construction as described, by combining with the head some means for stiffening the courses to such an extent that lateral displacement becomes practically impossible, but at the same time leaving the surface of the head as a continuous surface of non-vibrant material capable of giving a blow of the desired nature and quality as heretofore.

To the accomplishment of this object and such others as may hereinafter appear, the invention comprises the novel construction as herein set forth and as disclosed in the accompanying drawing, showing the preferred embodiment thereof, in which:

Figure 1 is a perspective view of a completely assembled mallet; Fig. 2 is a central sectional view of the mallet; Fig. 3 is a detail of one form of stilfening piece; and Fig. at is a detail of one form of the courses used in constructing the mallet head.

Referring to the drawings, represents a shank or stem in the form of a bolt having a head 11 and threaded substantially centrally and at its other end, as shown at 12 and 13 respectively. The shank 10 is preferably of metal so that the required weight may be given to the mallet, which weight is so distributed that when the parts are assembled the implement will hang er balance well in the hand of the operator. Against head 11 is placed an abutment or washer l4; preferably recessed for the reception of head 11 so that the outer end of the mallet will be smooth, and against this washer are placed the compressed courses forming the head proper, hereinafter described, they being confined in position by means of a second washer 15 and the whole being securely locked in place by a nut or other convenientlocking means 16 moving on the threaded part 12 of the shank. The washers 1 1 and 15 may be of metal, if additional weight is required, or they may be of any other suitable material having the required rigidity. The portion of shank 10 projecting beyond the mallet head is preferably tapered as at 17 and on this taper there is usually placed a suitably shaped hollow handle 15 of wood or similar material which is forced into and held in frictional contact with the taper by means of a nut 19 on threads 13, which nut is preferably rounded to give a smooth surface to the handle end.

The head proper, in which feature the in vention herein resides, is composed of a plurality of courses arranged radially or at substantially right angles to the longitudinal axis of the handle of suitable material adapted to produce a dead or non-vibrant blow, as rawhide, although it is obvious that many other materials may be used for this purpose, as green hide or tanned leather or in some instances for particular work paper, cloth, rubber, etc. may be employed, and these courses are placed under great pressure and confined in place as hereinbefore described. The courses are preferably in the form of disks 20 whereby the whole or any part of the surface is available for use and these disks are provided with centrally-arranged openings 21 through which the shank 10 is passed. In order to stifi'en these disks and prevent their lateral. displacement when a blow is struck, other courses, of a material capable of resisting the force of a lateral blow, are interposed at intervals between the rawhidecourses. hese stiffening courses preferably consist of thin metallic disks 22- whichare also provided with a centrally-arranged opening 23 for the reception 0f shank 10. These metallic stiffening pieces may be placed at any desired interval deemed necessary to give the required amount of stiffness to the rawhide courses; as shown in the drawing, with twenty-four rawhide courses there are but five metallic courses.

In order that the nature of the blow given by the striking surface may not be impaired, the stiifening disks are made of somewhat smaller diameter than the rawhide disks and with this construction the same nonvibra nt blow is produced as though no metal were used in constructing the head. In order that the stiffening disks may beheld firmly in place they are roughened in any convenient manner as shown at 2 4 and because of the burs or asperities thus formed and of the thinness of the disks, owing to the great pressure placed on the rawh de in the process of assembling the metal is caused to sink into and become embedded in the rawhide, the pressure thus causing the head, although made up of many courses of different materials, to become one substantially continuous substance.

The terms radially-arranged courses and radially-arranged disks used in the specification and claims with reference to the formation of a mallet head should be understood to mean a series of separate members arranged in different parallel planes, which planes coincide with the planes of the radii of the circular handle or in other words are situated at right angles to the longitudinal axis of said handle.

Obviously the invention may be changed in its details of construction in adapting it to various conditions of use without departing from its scope and spirit; thereforelVhat is claimed as new is 1. In a mallet, a head comprising a plu rality of radially-arranged courses of suitable material, compressed and suitably confined, in combination with a plurality of stiffening pieces interposed at intervals between adjacent courses and embedded therein for preventing lateral displacement thereof when a blow is struck.

2. In a mallet, a head comprising a plurality of radially-arranged courses of suitvals between adjacent courses and embedded therein for preventing lateral displacement thereof when a blow is struck.

3. In a mallet, a head comprising a plurality of radially-arranged courses of suitable material, compressed and suitably confined, in combination with a plurality of roughened stiifening pieces interposed at intervals between adjacent courses and embedded therein for preventing lateral displacement thereof when a blow is struck.

a. In a mallet, a head comprising a plurality of radially-arranged disks of non vibrant material, compressed and suitably confined, in combination with stiffening disks of less diameter than said non-Vibrant disks interposed at intervals between adjacent disks, constructed and arranged to prevent lateral displacement of said non-vibrant disks when a blow is struck.

5. In a mallet, a head comprising a plurality of radially-arranged rawhide disks, compressed and suitably confined, in combination with a plurality of metallic stiffening disks interposed at intervals between adjacent disks for preventing lateral displacement thereof when a blow is struck.

6. In a mallet, a head comprising a plurality of radiallyarranged rawhide. disks, compressed and suitably confined, in combination with a plurality of roughened stiffening disks interposed at intervals. between adjacent disks and embedded therein for preventing lateral displacement thereof when a blow is struck.

7. In a mallet, a head comprising a plurality of radially-arranged courses of suitable material, compressed and suitably confined, in combination with a plurality of stiffening pieces, each having a surface thickly covered with burs or asperities, interposed at intervals between the courses for preventing lateral displacement when a blow is struck.

8. In a mallet, a head comprising a plurality of radially arranged courses of nonvibrant material, compressed and suitably confined, in combination with separate stiffening means inserted between adjacent courses and constructed and arranged to prevent lateral displacement of said courses when a blow is struck.

in testimony whereof I have signed my name to this, specification in the presence of two subscribing witnesses.

CHARLES H. BAYLEY.

/Vitnesses FREDERICK L. EDMONDS, BERNARD Barrows.

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