US623192A - John a - Google Patents

Description

Patented Apr. l8, I899.

J. A. TULLUCH.

STONE GUTTERS HAUL.

- (Application am m 10, 1898.) (IolodeL) WITNESSES UNiTEn STATES PATE T .OFFICE.

JOHN A. TULLOCH, OF DULUTH, MINNESOTA, ASSIGNOR OF ONE-HALF TO JAMES G. HARRIS, OF SAME PLACE.

STONE-'CUTTERS MAU L.

SPECIFICATION forming part of Letters Patent No. 623,192, dated April 18, 1899.

Application filed May 10, 1898. Serial No. 680,294. (No model.)

To all whom it may concern:

Be it known that I, JOHN A. TULLOCH, a citizen of the United States, residing at Duluth, in the county of St. Louis and State of Minnesota, have invented certain new and useful Improvements in Stone-Cutters Mauls; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

My inventionrelates to mauls especially designed for the use of stone-cutters.

One of the essential features of the invention is to provide a maul which will present striking-surfaces of two different materials, one to give a somewhat vibrant blow and the other to give a dead or non-vibrant blow. To accomplish this result, the invention consists in providing a series of novelly-oonstructed horizontally-arranged courses composed of wood or wood fiber on the one part and of leather or rubber or rawhide on the other part, the courses composing the striking-sur- 2 5 faces being glued or cemented together and apcrtured to receive bolts or rivets for securing the parts firmly together and for the insertion and securing of ahandle.

The invention also consists of certain other 0 novel constructions, combinations, and arrangements of parts, as will be hereinafter described and specifically claimed.

In the accompanying drawings, Figure l is a vertical longitudin al section through a maul 3 5 constructed in accordance with myinvention. Fig. 2 is a diagrammatical View showing the arrangement of the courses of the striking-surfaces. Fig. 3 is a transverse sectional view through the body of the maul in the line of the courses. Fig. &is a detail plan view of a strikin g-course of full diameter. Fig. 5 is a detail plan view of a segmental course. Fig. 6 is a plan view of the lower metal securing-plate. Fig. 7 is a vertical sectional view of the upper 5 end of the wedge, and Fig. Sis a sectional view through the upper end of the handle.

In most mauls heretofore constructed only one strikingmaterial is presented and the exterior caps have been provided with projecting nuts or rivets, which injured the hands, and the courses of the materials employed were not so constructed as to effect tight joints, and the constructions would not admit of the employment of distinctly-different striking materials. Another objection to mauls now in use where several courses are employed is that the metal binding-plates are too far apart and the handles are insecure, the constructions lacking solidity, comfort, and efficiency. My invention is designed to overcome these difficulties.

A maul constructed in accordance with my invention, which is now to be described, will have two striking-surfaces which would give a somewhat vibrant blow and two strikingsurfaces which would give a dead or non-vibrant blow. The courses which are secured together to produce a vibrant blow are composed, preferably, of layers of wood or wood fiber, and the courses which are secured together to produce a dead or non-vibrant blow are composed of leather or rawhide. The striking-surfaces thus produced are composed of courses arranged alternately of layers of full diameter approximately of the shape as shown in Fig. 4E and of segmental pieces of approximately the shape, shown in Fig. 5. The first vibrant course a is of wood or wood fiber and extends integrallyfroni one side of the implement to the other and is provided '80 with a central aperture for the passage of a handle D and with apertures 12 h for the passage of rivet-bolts b: The first non-vibrant course 0 is composed of leather or rubber or rawhide arranged on the same plane as the 1 course a and is divided into two segmental parts, as shown in Fig. 5. The second vibrant course d is of wood or wood fiber and is divided into two segmental parts, the same as shown in Fig. 5, and the second non-vibrant course 0 which is on the same plane as the second vibrant course a is of leather or rubber or rawhide and extends integrally from one side to the opposite side of the said implemen t, as shown in Fig.4. A sufficient number of these courses thus arranged are employed to complete striking-surfaces of the desired sizes, and the courses are glued or cementedin their upper and lower faces and on their contacting edges, which edges are vertically beveled, as shown in Fig. 2. The effect of thus beveling the edges is that when the parts are pressed togeth er vertically the leather or rubber or rawhide courses will wedge horizontally against and the whole is then firmly pressed under heavy pressure between two full-sized disk metal plates B B, which plates are suitably apertured for the passage of rivet-bolts b Z) and also apertured and threaded for the reception of screws b Z2 as shown in Fig. 6. The upper plate B and disk 0 are centrally apertured to form an air-vent, and the lower plate B and disk 0 are centrally apertured for the passage of the handle D. YVhen the parts have thus been arranged, the rivet-bolts b b are then inserted and the rivet-heads hammered out on their upper ends, respectively, preferably while the parts are still held together tightly in a proper press.

A lower cap A, preferably constructed of wood or wood fiber, is secured to the outer surface of the lower circular metal plate B by means of segments b N, as shown in Fig. 1. The handle D is then inserted into place, the handle being preceded by a conical-shaped wedge (1, the wedge being seated into a socket (Z, formed in the handle, the inner end of the handle being bored out for this purpose and is sawed vertically into quarters, as d downwardly from the top, as shown in Fig. 8, the extreme inner edge of said handle being also preferably beveled, as shown at d in Fig. 7. The Wedge d is made, preferably, conical in shape to fit into the socket (Z, formed in the handle and splay or wedge the quartered walls of the same when the handle is driven in, and thus firmly secure the handle in place. The central aperture of the striking-courses for the reception ofthe handle is made of slightlygreater diameter than the handle for a portion of the distance of-said aperture downwardly from the top plate B to accommodate the expansive or spla'yed end of the handle when the handle is inserted and wedged. In inserting the handle the conical wedge d strikes the top plate B and is forced into the socket end of the handle and wedges or splays the circular portions of the same, and thus permanently and firmly keys the handle in place.

If desired, the top plate B may be secured in place before the handle D is inserted, in which case it is advisable to centrally aperture the cap A with a continuation of the airvent E, so that the air-cushion will not be formed at the end of the handle D.

A soft-rubber cloth or leather cushion, as F, may, if desired, be atfixed by any suitable means to the under side of the lower cap A as a protection to the hand of the operator,

the hand frequently coming in contact with the under side of the tool in operating the same.

The striking-courses may be of uniform thickness or of relatively-varied thickness,

are a trifle deeper vertically than the wood courses, which causes them to wedge together when pressed against the wood, and the pressure levels the mass and drives the glue into the pores of the materials. I contemplate using such other materials in place of wood and leather, respectively, as may be found suitable and desirable, where the same ob-' ject sought can be attained.

Having now described my invention, what I claim as new, and desire to secure by Letters Patent, is-

1. A maul for stone-cutters use,comprising in its construction a single cylindrical body portion having two or more striking-surfaces formed of different kinds of material which adjoin each other and are of entirely diiferent compositions, one of the striking'surfaces being composed of wood, wood fiber or other analogous material and gives a vibrant blow'; and the other striking-surface being composed of leather, rubber or other analogous material and gives a non-vibrant blow, and a suitable handle which enters the body portion from the end, the whole being properly secured together, substantially as described,

2. A maul for a stone-cutters use, comprising in its construction a body portion proper having two or more striking-surfaces, one of I which gives a vibrant blow and the other, a

dead or non-vibrant blow, the vibrant strikin g-surface being formed of courses composed of Wood or wood fiber or other analogous materialarranged alternately to extend continuously from opposite sides of the implement and in segments, and the non-vibrant striking-surfaces being formed of courses composed of leather, rubber, rawhide or other analogous material, arranged alternately to extend continuously from opposite sides of the implement and in segments, the courses being glued or cemented togetherand further held in place by bolts or rivets, substantially as described.

3. A maul for stone-cutters use,com prising in its construction a body portion proper having two or more striking-surfaces, one of which gives a vibrant blow and the other, a dead or non-vibrant blow, the vibrant strikin g-surface being-formed of courses composed of wood or wood fiber or other analogous material arranged alternately to extend continuously from opposite sides of the implement and in segments, the segments resting within thecontinuously-extending portions, and the non-vibrant striking-surfaces being formed of courses composed of leather, rubber, rawhide or other analogous material arranged alternately to extend continuously from opposite sides of the implement and in segments, the segments resting within the continuouslye'xtending portions, and the courses being glued or cemented together and further held in place by bolts or rivets, substantially as described.

4:. A maul forstone-cutters use, comprising in its construction a body portion proper havin g two or more striking-s11 rfaces, one of which gives a vibrant blow and the other, a dead or elastic but non -vibrant blow, the vibrant striking-surface being formed of courses composed alternately of wood or wood fiber or other analogous material arranged to extend continuously from opposite sides of the implement, and in segments, and the non-vibrant striking-surface being formed of courses composed of leather, rubber, rawhide or other analogous material arrangedv alternately to extend continuously from opposite sides of the implement and in segments, the courses being glued or cemented together on their upper and lower faces and on their contacting edges, which edges are vertically beveled to form tight joints, and further held in place by suitable bolts or rivets, substantially as described.

5. A maul for stone-cutters use,comprising in its construction a body portion proper constituting a striking surface composed of courses of suitable material, each course being formed of segmental pieces; the courses being cemented together on their upper and lower faces and the segmental pieces consti-' tuting a course, being cemented on their contacting edges, said edges being beveled vertically to form tight joints, metal circular plates arranged at the top and bottom of the courses, rivet-bolts passed through the said courses, and caps composed of wood or other analogous material applied on the circular metal plates and secured in position byscrews or rivets, substantially as described.

6. A maul for stone-cutters use,comprising in its construction a body portion proper constitutin g a striking surface, composed of courses of suitable material, each course being formed of segmental pieces, the courses being cemented together on their upper and lower faces and the segmental pieces on their contacting edges, said edges being beveled vertically to form tight joints, metal circular plates arranged at the top and bottom of the courses, rivet-bolts passed through the said courses,caps composed of wood or other analogous material applied on the circular metal plates and secured in position by screws or rivets, the upper cap being provided with an air-vent, a handle secured in said body portion, said handle being quartered at its inner end and provided with a socket, and a wedge inserted in said socket, substantially as described.

7 A maul'for stone-cutters use comprising in its construction a body portion proper, c0n stituting a striking surface composed of courses of suitable material, each course being formed of segmental pieces, the courses being cemented together on their upper and lower faces and segmental pieces on their contacting edges, said edges being beveled vertically to form tight joints, metal circular plates arranged at the top and bottom of the courses, rivet-bolts passed through the said courses, caps composed of wood oi other analogous material applied on the circular metal plates and secured in position by screws or rivets, and a cushion applied on the lower cap-for protecting the hand of the operator, substantially as described.

8. A maul for stone-cutters use comprising in its construction a body portion proper having two or more striking-surfaces of different kinds, one of which gives a vibrant blow, and the other, a dead or non-vibrant blow, the vibrant striking surface being formed of courses each course composed of fiat pieces of wood, wood fiber or other analogous material arranged with their flat faces adjoining each other and the non-vibrant striking-surfaces being formed of courses composed of leather, rubber, rawhide or other analogous material and with their flat faces adjoining each other, and a suitable handle, the whole being properly secured together, substantially as described.

9. A maul for stone-cutters use comprising in its construction a body portion proper havin g two or more striking-surfaces of different kinds, one of which gives a Vibrant blow, and the other, a dead or non-vibrant blow, the vibrant striking-surfaces being formed of segmental courses composed of flat pieces of wood, wood fiber or other analogous material, arranged with their flat faces adjoining each other, and the non-vibrant striking-surfaces being formed of segmental courses and being composed of flat pieces of leather, rubber, rawhide or other analogous material and with 7 their fiat surfaces adjoining each other, and

a suitable handle, the whole being properly secured together.

In testimony whereof I hereunto affix my signature in presence of two witnesses.

JOHN A. TULLOOH.

Witnesses:

JAMES T. WATSON, BERT FISHER.

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