US1349955A

US1349955A - Method of producing duplicate patterns in granite

Info

Publication number: US1349955A
Application number: US96810A
Authority: US
Inventors: Harwood John
Original assignee: JOHN D MCCOLM
Current assignee: JOHN D MCCOLM
Priority date: 1916-05-11
Filing date: 1916-05-11
Publication date: 1920-08-17
Anticipated expiration: 1937-08-17

Description

' J. HARWOOD. METHOD OF PRODUCING DUPLICATE PATTERNS'IN GRANITE. APPLICATION FILED M.AYIl,,|9|e.

1 349,955. Patented Aug- 17, 1920;

- Inver-Tmr' UNITED STATES PATENT OFFICE.

JOHN HARWOOID, 0F BEREA, KENTUCKY, ASSIGNOR OF ONE-HALF T0 01? HUNTINGT'L'EN,

JOHN D. McCOLM, VIRGINIA.

METHOD OF PRODUCING DUPLICATE PATTERNS IN GRANITE.

Application filed May 11, 1916.

To-aZZ whom it may concern:

l/Vhereas I, JOHN HARwooD, a citizen of the United States, and resident of Eerea, in the county of Madison and State of Kentucky, have invented certain new and useful Improvements in Methods of Producing Duplicate Patterns in Granite, of which the following is a specification.

My present invention relates to an improved method of producing duplicate patterns in granite for either building or monumental purposes, utilizing saws for dividing the'stock into the desired sized blocks.

In the manufacture of certain designs of monuments and duplicate building stones of granite, the usual method is to cut or finish each individual pattern or design from the rough quarried stone or from slabs or strips which have been sawed on one or more sides, thus requiring each stone to be handled many times during the process of finishing. At the present time granite is quarried in large blocks and sawed into slabs which must be broken to; the desired size and finished separately entailing a great deal of handling and waste of material in making the finished pattern or design. The principal object of my invention is to provide an improved method of the character described by which the object in view may be accomplished with a minimum er;- pense and a saving of time and material in the procedure. Other objects of my invention are to provide an improved method of the character described utilizing chilled iron balls or shot to impinge upon the stock at the line of the desired cut and to confine the said shot to a movement in a predetermined path so that a plurality of pieces of stock may be acted upon. at the same time; and, to provide such a method by which the stock will be protected from rust.

Further objects of my invention will appear in the following detailed description, taken in connection with the accompanying drawings forming a part of this specification and in which drawings:

Figure l is a side elevation of a stone carriage showing stock mounted thereupon in accordance with my invention.

Fig. 2 is an end elevation of the same.

Fig. 3 is an enlarged fragmentary plan view of a covering for the stock.

Specification of Letters Patent.

Patented Au". 17, 1920. Serial No. 96,810.

Fig. 4 is a perspective view of an elongated piece of stock.

Fig. 5 is a perspective view of a finished pattern cut from the stock shown in Fig. 4.

As to the preferred apparatus which may be used in carryingout my method, in the drawings, wherein similar reference cha acters refer to similar parts throughout the views, A designates the stock; l) a suitable support therefor; C a filler, such as cementitious material or plaster; D a covering of the cementitious material; E saws of any suitable type; and, F, shot used when sawing.

Referring first to the stock A, it is primarily shaped into elongated pieces, with hammered or polished sides 6, hammered tops 7, rough or hammered heads 8, and a hammered bottom 9. Such stock is placed upon the base B, in spaced relation, with the pieces longitudinally of one another as clearl 1 shown in F l of the drawing. The base may consist of a stone carriage embodying longitudinal stringers 10; a platform 11, wheels 12, carried by axles 13 received by journals 1-]: secured to the under faces of stringers 10; and suitable braces 15 supported by and adjacent the ends of stringers l0. The saws E may be of any suitable type, and in the example shown, reciproczble above the base 13, and adapted to feed downwardly toward the platform 11.

I prefer to mount a stone slab 16 upon the platform 11 or in other woros below the stock A, and upon which the stock rests.

Certain of the stocks, that designated A, having unfinished faces 17, are disposed longitudinally of the pieces A at the ends of the row made up by the latter, these pieces A being arranged in spaced relation with respect to the pieces A, and disposed with the unfinished faces 17 outermost. Suitable abutment pieces or wedges 18 may be disposed between the braces 15 and. the said faces 17 of pieces A so as to hold the mass, as hereinafter more fully described, firmly upon the base B.

After having arranged the pieces of stock in spaced relation longitudinally of one allother, the filler C is positioned between the pieces, this filler preferably consisting of piaster or stucco, or other cementitious ma terial which may be easily placed in a plastic form and which in time hardens. A suitable covering D of like material is placed over the pieces, said filling and covering pref-' grooves 19 may end short of the margin 20 of the mass preventing accidental displacement of the shot as the saws E impinge upon said mass.

After the plastic mass between and above the pieces of stock has hardened sufficiently to prevent the corners of stocks A and A, at the finished faces, from breaking away, or becoming chafed off, sawing may be proceeded with in the usual manner.

It is to be observed that the length of the pieces A and A may be substantially the width of the saw frame and that either the base B or the saws E may be reciprocated to accomplish the sawing. lVhen the saws enter the faces 17 of pieces A, such faces may become broken away or chafed off, and for such reason, they are not primarily finished.

From the foregoing it is made manifest that I have invented a method of producing duplicate patterns in granite which will obviate the necessity of handling the steel: a considerable number of times and enable a large number of duplicate patterns to be produced without material waste of the stock.

I claim:

1. A method of producing duplicate patterns in granite which consists in primarily shaping the stock in elongated pieces, arranging said pieces in spaced relation longitudinally of one another, placing a cementitious filler between the pieces and above the faces in one homogeneous mass, grooving the upper face of said mass in the lines of the desired cuts with the grooves of greater width than the subsequent saw kerfs, placing shot in said grooves, and sawing the stock and mass starting at the said grooves.

2. A method of producing duplicate patterns in granite, which consists in primarily shaping some of the stocks in elongated pieces, arranging'said pieces in spaced rela tion longitudinally of one anotl'ier, placing stock with unfinished faces outermost and longitudinally of said first mentioned pieces at the end of the row of the latter, placing a cementitious filler between the pieces and above the faces in one homogeneous mass, grooving the upper faces of said mass in the lines of the desired cuts with the grooves of greater width than the subsequent saw kerfs, placing shot in said grooves, and sawing the stock and mass starting at the said grooves.

3-1L method of producing duplicate patterns in granite which consists in primarily shaping the stock in separate elongated pieces, arranging said pieces in spaced relation longitudinally of one another, placing a cementitious filler between the pieces and above the same in one homogeneous mass, and sawing said stock and said filler.

i. A method of producing duplicate pat terns which consists in primarily shaping the stock in elongated pieces, arranging said pieces in spaced relation longitudinally of one another, placing a cementitious filler be tween the pieces and above the same in one homogeneous mass, grooving the upper face of said mass in the lines of the desired cuts with grooves of greater width than the subsequent saw herfs, topoints near the margins of said filler, placing shot in said grooves, and sawing the stool: and mass starting at the said grooves.

5. A method of producing duplicate patterns in granite, which consists in primarily shaping some of the stock in elongated pieces, arranging said pieces in spaced relation longitudinally of one another, placing stock with unfinished faces outermost and longitudinally of said first mentioned faces at the ends of the row of the latter, placing a cementitious filler between the pieces and above the same in one homogeneous mass, grooving the upper face of said mass in the lines of the desired cuts with grooves of greater width than the subsequent saw lrer'fs, said grooving extending short of the margins of said filler, placing shot in said grooves, and sawing the stock and mass, starting at the said grooves.

6. A method of producing duplicate patterns in granite, which consists in arranging a plurality of pieces of stock in spaced relation, placing a filler therebetween, and sawing the mass.

7. A method of producing duplicate patterns in granite which consists in arranging a plurality of pieces of stock in spaced relation, placing cementitious material therebctween, and sawing the mass. V

8. A method of producing duplicate patterns in granite, which consists in arranging a plurality of pieces of stock in spaced relation, placing a cementitious material therebetween in plastic condition, and sawing the mass after the cementitious material hardens.

9. A method of producing duplicate patterns in granite, which consists in primarily shaping the stock in elongated separate pieces, arranging said pieces in spaced rela tion longitudinally of one another, placing a filler therebetween, and sawing the mass.

10. A method of producing duplicate patterns in granite, which consists in primarily shaping the stock in elongated separate pieces, arranging said pieces in spaced relation longitudinally of one another, placing cementitious material therebetween, and sawing the mass.

11. A method of producing duplicate pat terns in granite, which consists in primarily shaping the stock in elongated separate pieces, arranging said pieces in spaced relation longitudinally of one another, placing a cementitious material therebetween in plastic condition, and sawing the mass after said cenientitious material hardens.

12. A method of producing duplicate pat terns which consists in arranging elongated pieces of stock in spaced relation horizontally, placing a cementitious filler between the pieces and above the same in one homogeneous mass, and sawing the stock and mass.

13. A method of producing duplicate patterns in granite which consists in primarily arranging separate pieces of stock in spaced relation horizontally, placing a filler between said pieces of stock and a cover of cementitious material thereover, and sawing the mass.

14. A method of producing duplicate patterns in granite, which consists in arranging the pieces of stock in spaced relation horizontally, placing a filler between the pieces of stock and a cover of cementitious matter thereover, grooving said cover in the lines of the desired cuts, grooves of greater width than the subsequent saw kerfs, placing shot in said grooves, and sawing the mass.

15. A method of producing duplicate patterns in granite, which consists in arranging separate pieces of stock in spaced relation horizontally upon a bed of stone, placing a cementitious filler between the pieces and above the same in one homogeneous mass, and sawing the stock and mass.

JOHN HARWOOD.