US718956A - Horizontal spindle drilling and boring machine. - Google Patents

Description

No. 718,956. PATENTED JAN. 20, 1903. G. H. SMITH.

HORIZONTAL SPINDLE DRILLING AND BORING MACHINE.

APPLICATION FILED NOV. 7, 1901.

IO MODEL.

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UNTTEE STATES PATENT OFFICE.

GEORGE HENRY SMITH, OF PROVIDENCE, RHODE ISLAND, ASSIGNOR TO THE BEAMAN & SMITH COMPANY, OF PROVIDENCE, RHODE ISLAND,

A CORPORATION.

HORIZONTAL SPINDLE DRILLING AND BORING MACHINE.

SPECIFICATION forming part of Letters Patent No. 718,956, dated January 20, 1903.

Application filed November 7.1901- Serial No. 81,484- (No model.)

To all whom it may concern.-

Be it known that I, GEORGE HENRY SMITH,a citizen of the Unit-ed States, residing at Providence, in the county of Providence and State of Rhode Island, have invented certain new and useful Improvements in Horizontal Spindle Drilling and Boring 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 the letters of reference marked thereon, which form a part of this specification.

My invention relates to improvements in horizontal spindle drilling and boring machines; and it consists of the parts and combination of parts, as will be more fully hereinafter described and shown.

In the drawings, Figure 1 is atop plan view of the character referred to embodying my invention, parts being broken away. Fig. 2 is a side elevation of the same, parts being broken away.

B is the bed of the machine.

K is a platform on which the operator stands, which is supported in such manner on the traveling head G as to be rigid and still be capable of sliding vertically when the head is at or near its lowest position, as will be hereinafter described.

The saddle E slides horizontally on the bed of the machine, and to this saddle the main column or upright F is secured. The spindlehead G has a vertical sliding movement on the column F.

H represents brackets attached to the spin dle-head G, each having yoke ends, each yoke carrying two grooved guide-wheels M, journaled therein, between which the main supports I of the platform K are supported and guided as the platform moves.

The operator stands upon the platform K when operating the machine. A stop N, secured around the top of the supports I, rests on the supporting-brackets H H and limits the downward movement of the supports and the platform K. If, however, the head G is lowered to the saddle E, the platform K will not strike the bed B, as the projection L will strike the saddle E and arrest the downward movement of the platform. The head G may continue to descend after the platform is at rest, as the supports I will slide upward between the guide M, the wheels moving downward on the supports until the head G is at its lowest position, the reverse action taking place on the upward movement of the head G, as will be readily understood from Fig. 2.

Braces O extend from the outer end of the platform above the brackets H, the upper ends being secured to the top N. 0 isa guardrail secured around the platform.

Having thus described my invention, What I claim, and desire to secure by Letters Patent, is

1. In a machine of the character described, the combination with the bed and platen, and the movable spindle-head, of a platform, supports extending upwardly therefrom, brackets secured to the said head and guide-wheels secured in said brackets between which the said guides work.

2. In a machine of the character described, the combination with the bed and movable spindle-head, of aplatform movablymounted on said head and a projection extending from the platform adapted to engage said bed and arrest the downward movement of the platform.

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

GEORGE HENRY SMITH.

Witnesses:

JOSEPH H. PEARCE, WALTER J. B. SMITH.

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