US404335A - Stone-sawing machine - Google Patents

Description

UNITED STATES PATENT GFFICE.

RUFUS LESTER BARNEY, OF SWVANTON, ASSIGNOR OF ONE-HALF TO JOHN N. BAXTER, OF RUTLAND, VERMONT.

STONE-SAWING MACHINE.

SPECIFICATION forming part of Letters Patent No. 404,335, dated May 28, 1889.

Application filed October 18, 1888. Serial No. 288,416. (No model.)

To all whom it may concern.-

Be it known that I, RUFUS LESTER BARNEY, acitizen of the United States, and aresident of Swanton, in the county of Franklin and State of Vermont, have invented certain new and useful Improvements in Stone-Sawing Machines; and I do 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, reference being had to the accompanying drawings, and to letters or figures of reference marked thereon, which form a part of this specification.

Figure 1 of the drawings is a side view of this invention. Fig. 2 is an end view of the same.

The invention relates to improvements in stone-sawing machines; and it consists more particularly in an improvement on the machine patented February 7, 1888, and numbered 377,595.

The object is to obviate the use of wearirons which are usually attached to the sides or corners of the gangs. In using wear irons or boards it is found that they become quickly worn by the sand falling upon them, allowing the gang-frame to follow the worn places and doing inferior work. I obviate this difficulty by providing a swinging frame, which is rigidly braced, so that there is nolateral play to the gang-frame.

Referring to the drawings, A designates a portion of the gang-frame, and B represents corner-posts of the standing frame.

0 is a cross-bar having the sleeves to at its ends to engage and slide upon the slides D 011 the posts B. The cross-bar may be suspended in any well-known manner.

E shows the hangers having a pivotal or swinging connection at their upper ends with the cross-bar O, and pivoted at their lower ends to the lugs 12 on the gang-frame A. The said hangers are designed to allow a longitudinal movement or swing of the gang-frame, and to prevent lateral play the braces F are rigidly secured to the respective hangers at diagonallyopposite points, and the said braces may be bolted together at their central or crossing point. The connection between the hangers E and the cross-bar O is effected by means of rods f bearing in boxes f secured to the under side of said bar, said rods also being connected by boxes to said hangers. The connection between the braces 5 5 F and the hangers E is effected by means of apertured projections or plates (Z upon the hangers, and through which said braces pass, "nuts e being fitted upon the said braces upon each side of said plates or projections (Z. The braces at their points of crossing are provided with slots, and ad j Listing-screw, bolt, and nut m.

Having described my invention, what I claim is 1. The gang-frame, in combination with the sliding cross-bars having a sliding combination with the upright supporting-frame, said gang frame being connected to said cross-bars by hangers pivoted to said frame and to rods bearing boxes applied to the under side of said cross-bars, substantially as set forth.

2. The gang-frame, in combination with the cross-bars having a sliding connection with the upright supporting -frame, said gangframe being connected to said cross-bars by hangers pivoted to said frame and to rods bearing in boxes applied to the under side of said cross-bars,which cross-bars are connected together by braces having an adjustable or screw-bolt and-slot connection at their crossing points, substantially as specified.

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

RUFUS LESTER BARNEY.

Witnesses:

RIGNEY D. MARVIN, E. M. PROUTY.

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