US223253A - Half op his eight to geoege joseph o doheett - Google Patents

Description

W. E. SOARE. Apparatus for Setting out Slope-Stakes.

No. 223,253. Patented Jan. 6, 1880.

FLPTERS, FHDTO-IJTHDGRPHER, WASHINGTON. D C.

UNITED STATES PATENT OFFICE.

WILLIAM E. SOARE, OF OTTAWA, ONTARIO, CANADA, ASSIGNOR OF ONE- HALF OF I-IIS RIGHT TO GEORGE JOSEPH ODOHERTY, OF SAMEPLAOE.

APPARATUS FOR SETTING OUT SLOPE-STAKES.

SPECIFICATION forming part of Letters Patent No. 223,253, dated January 6, 1880.

Application filed Juno 2, 1879.

To all whom t may concern Be it known that I, WILLIAM EDWARD SOARE, of the city of Ottawa, in the countyof- Carleton, in t-hc Province of Ontario, Canada, have invented certain new and useful Improvements in Sectors; and I do hereby declare that the following is a full, clear, and exact description of the same. l This invention relates to an instrument for 1o setting out slope-stakes in railroad construction and other engineering Works with facility and accuracy by a person not skilled in surveying.

The instrument consists of a horizontal scalerod and a vertical scale-rod placed at a right angle, the horizontal rod slidiugly adjustable on the vertical rod, which has a movable slide having an arm extending horizontally in alignment with the horizontal rod, whereby said zo rod and arin are movably adjustable on the vertical rod. By the aid of a line attachment to the slide, and passing through its arm at the angle of slope, the straight continuation of said line indicates the, position at the ground for setting the slope-stake.

Figure l. represents an elevation ot' my instrument set to ascertain the position ot a slope-stake at a filling-in station. Fig. 2 is a top view of the same.

A is a rod, hinged at one end to a metallic frame, E, sliding on the rod B, said rod, when in use, being set at a right angle thereto by a brace, b, hinged to the frame E, the other end of the braceengaging with the rod A by a hook or other suitable contrivance, whereby both rods are kept at a right angle to each other when in use.

The rod A is provided with a spirit-1evel,a, wherebyl the rod A is leveled, thus bringing 4o the rod B to a perpendicular position.

D is a frame sliding on the rod B, which frame has an arm, O, hinged to fall at a right angle thereto when in use. Said frame is provided with a hook, d, on which to attach a ring on a cord or tape, c.

The arm C has loops c c, through one of which the line or tape is run and attached to the hook d, and such cord continued in a straight line to the ground gives the position 5o of the slope-stake when the frame D is adjusted to the proper height, as hereinafter described.

For a slope ot' 011e foot to one foot, the hook d and loops c should be at the same distance from theintersection of the rod and arin. For a slope ot one to one and a half, the loop halt' a distance farther should be used, the arm having loops to suit any designated slope.

The rods A and B are marked with scales for readily setting oftl lineal measurement.

The rods may be made extensible in any \vellkno\vn manner, and the various parts hinged so as to fold compactly together.

The operation of the instrument is as follows: Frepresents one of the series of stationstakes set out by thc surveyor, vertical with the middle line o't' the proposed rtnul-bed,wliich is represented by the dotted linej', the height of Which from the ground at the stake is ascertained from the protile of the survey pre- 7o viously made, which, for illustration, may be named, say, ten feet, the width ot' the proposed road-bed being, say, sixteen i'eet. The vertical rod B is then set upat a distance ot' eight feet horizontally from the stake F, which distance is ascertained by thc scale-measurements on horizontal rod A, the rod B being at a right angle thereto. The slide D is then slid up the rod B until the hook d of the slide is ten feet from the I'od A. A line, e, is then attached to 8o the hook d and passed through a loop, c, in the arm C, which is at a right angle to rod B, and the continuation of said line straight to the ground will give the position ot' the slopestake. t n

To setout the slope-stake for a cutting, the same inode ot procedure is adopted as for an embankment, herein describeththe depth ot' the cutting being taken as the height ot' an embankment- I claim as my invention- The instrument described. consisting of the rods A Iand B, adjustably connected by slide E and slide l), having an arm, and a hook, d, or other device for the attachment of a cord or 95 tape measure, e, for settin g out slope-stakes in railway construction and other engineering works, in the manner set i'orth.

W. E. SOARE.

Witnesses JOHN GRIsT, F. J. Ross.

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