US820848A - Device for splitting stone. - Google Patents

Description

No. 820,848. PATENTBD MAY 15, 1906. J. P. GUPPS.

DEVICE FOR SPLITTING STONE.

APPLICATION FILED JAN.11. 190s.

2 SHEETSSHBET 1.

2 lllllIll]IIIlIlllllllllIllllllllllllllllllllllllllllll llllllllllllll l, j l 1.

WITNESSES: INVENTOH JAM E s F C 0 P PS A TTOHNE Y8 PATENTED MAY 15, 1906.

J. F. OOPPS.

DEVICE FOR SPLITTING STONE.

APPLICATION FILED JAN.11. 1906.

2 SHEETS SHEBT 2.

CHANNELLER CUT AS CUT WITH VNDERCl/TT R M Z r ND WASTE y W m m/ M D M/ BLOCKAS LIFTED WITH WEDGES P m. HP M 00 M r W N A V WF 5 E M A J UNITED STATES Pn'rEn'r orrioE.

Specification of Letters Patent.

Patented May 15, 1906.

Application filed January 11,1906. Serial No. 295,558.

To aZl whom it may concern.- Beit known that I, JAMES FRANCIS Corps, a citizen of the United States, and a resident of Alberene, in the county of Albemarle and State of Virginia, have made certain new and useful Improvements in Devices for Splitting Stone, of which the followingis a specification.

My invention is an improvement in. the splitting of stone and it consists in the novel construction, as will be hereinafter described and claimed.

In the drawings, Figure 1 is a top plan view, partly broken away, illustrating the operation of my invention. Fig. 2 is a vertical section on about line 2 2 of Fig. 1. Fig. 3 is a detail side View, and Fig. 4- a detail top plan view, of one of the sectional Wedges. Fig. 5 is a side view illustrating the breal formed in the practice of my invention. Fig. 6 is a side view illustrating the break produced in the ordinary method of splitting stone. Fig. 7 is a view illustrating the waste experienced in quarrying stone in the ordinary manner, and Fig. 8 illustrates the manner in which waste is avoided by the practice of my invention.

Ordinarily in breaking stone Witn Wedges the wedges are arranged to operate in the outer ends of the holes drilled in the body of rock, and in such case the stone usually splits with a downward course, as indicated. at A in Fig. 6, and there is much waste of rock as well. as the inconvenience resulting from facing the stone off level.

By my invention I form the drill-holes B nearly through the body 0 of stone to be split, the said body of stone usually being separated at its back D from the mass of stone by a channel cut by any suitable channeling means and the inner end walls B of the holes B forming a stop to limit the insertion of the wedge in the use of the invention In practice I prefer in splitting off a horizontal slab, as-illustrated in Figs. 1 and 2, to arrange the wedges to operate at the opposite ends of the adjacent drill-holes, so that one wedge will operate in the extreme inner end of its drill-hole and the wedge in the next drill-hole will be at the outer end of its drillhole, and so on throughout the series, so that the splitting action is exerted at the opposite ends of the adjacent drill-holes, whereby I am able to get an even lifting action on the slab which. it is desired to split from the body of rock, and the line of division will be approximately horizontal throughout. This is illustrated in Fig. 2, in which the lower wedge operates in the extreme inner end of its drillhole, the next upper wedge in the outer end of its drill-hole, the next wedge in the inner end of its drill-hole, and so on throughout the series, so that as the stone is split the split ting will be effected. in approximately a straight plane. In securing this result it will be noticed I form a series of holes having generally the same direction longitudinally and arranged approximately in a common plane, the holes extending nearly through the body of stone to be split and a splitting force being subsequently exerted in the direction in which it is desired to separate stone, such splitting force being exerted in the extreme inner or closed ends of some of said holes and in the extreme outer or open. ends of some adjacent holes, whereby to secure a splitting of the body of stone in approximately a straight plane.

In Figs. 1, 2. 5, and 6 I illustrate the split ting of the'stone in approximately a horizontal plane. Manifestly the same advantageous results may be secured by my improve ment insplitting stone in approximately a vertical plane.

The wedges E preferably include the tapered plug F, the tapered feathers (l, and a wire H, forming a breakable connection between the smaller cnds of the plug F and the smaller ends of the feathers G, so theplug and feathers will be uni ted for convenience in applying the wedge and inserting the feathers to the extreme inner ends of the drillholes, as shown in Fig. 2, and which wire will be broken by the initial blow upon the plugs F in driving the same to split the stone. This breakable connection not only facilitates the insertion of the wedge as desired, but also provides for its manipulation to permit the turning of the feathers to secure their operation either vertically or horizontally, as may be desired in the practical use of the invention.

In practice the feathers G may, combined with the plug, be circular, octagonal, or of other suitable shape in cross-section.

IOO

Having thus described my invention,what openings and forming a breakable connection Iclaim as new, and desire to secure by Letfor the Wedge-sections, substantially as set ters Patent, isforth.

A Wedge for use in splitting stone compris- 3 J ARIES FRANCIS COPPS. 5 ing the tapered feathers, and the taperedl Witnesses:

plug having coincident openings near their SoL KAUFMAN,

smaller ends and means passing through said I GnF. COMPTON.

Images