US17782A - Automatic lathe - Google Patents

Description

`reference marked thereon, forming part of Aa gage plate 1* (similar to r in Fig. 3, the ten- ALEXANDER EDMONDS, OF MOUNT PULASKI, ILLINOIS.

AUTOMATIC LATI-IE.

Specification of Letters Patent No. 17,782, dated July 14, 185'?.

To all whom t may concern:

Be it known that I, ALEXANDER EDMoNDs, of Mount Pulaski, in the county of Logan and State of Illinois, have invented certain new and useful Im rovements in Machines for Turning; and do hereby declare that the following is a full and eXact description thereof, reference being had to the accompanyingy drawings, and to the letters of this patent.

Figure 1 (lirst sheet) is an oblique view as seen from above the machine; Fig. 2, a plan of the nippers; Fig. 3, a front View of the tenoning machine, the cap removed. Fig. 4 (second sheet) is a horizontal view, part in section, and having the slide F of ig. 1 removed.

The nature of my improvement consists in constructing a turning machine, Aby which on taking pieces of wood from the rough and placing it in a pair of nippers or tongs on the one side, and forcing it through a hollow rotating shaft (provided with cutters, &c.) it is received on the opposite side thereof by another pair of niplpers actuated by the foot and drawn throug the machine by my improvement in the tenoning machine, I am able to iinish these cylinders, with a proper shoulder, chamfer taken off and regular size, fit for chair makers use.

To enable others skilled in the art to make and use my machine, I will proceed to describe its construction and use.

In Fig. l, G G is the frame or platform of the machine, supported at a convenient height by four pillars; in suitable pup ets anddriven by a pulley B is placed a ho low shaft or rotating stock A a, it is formed of two portions, the outer one a, Fig. 4, is trumpet sha e in the mouth, and is there provided wit one or more gouges g behind which may be placed the gage. A second iece A is rovided with a iinishing chisel Upon t e face of the piece A is placed onlng tool) by moving 1^ toward the chisels the diameter of the turned stuff is regulated or the gage may be placed directly behind g. If small rounds are wanted force the plate toward the center of, the hollow shaft. The chisel gage and gouges are sel cured in the stock by screws and are furi nished with suitable openings to discharge the chips.

C, C, are parallel pieces raised u on the platform G G. On their inner e ges are grooves in which slide the pieces F, Fig. 1. On the under side of F is secured the s ring nippers or ton s E, connected with an operated on by t e treadle T, by cords which pass over a pulley lo, through the'platform G, and around the ends of the nippers; by drawing on the cords the nippers are made to close and hold the stuff. v

N is a pair of hand nippers or tongs, placed on the upper side of a slide S between S S/, it is to force up and hold the stuif while being turned.

Y is a counter weight, drawing the cross piece H of the slide F and nippers E back to the shaft A a, when relieved of the treadle T.

The tenoning machine is composed of rotating shaft AD provided with a gouge g, Fig. 4, for cutting ridges, a gage r (also in Fig. 3), formed of a plate with a semicircular notch.

C is a bevel edged chisel to take off the chamfer of the tenon; V a movable screw in the cup or bottom of the hollow shaft by turning it in or out, regulates the length of the tenon.

I is a guide cap placed on the mouth of the cutter for the end of the tenen; J a rest for the other end of the tenon; B a driving pulley.

In using the machine for turning, take a piece of wood, a square or other shape, withdraw the slide S and nippers N to receive the iece, enter the piece in the conical moutili of the stock or shaft and press it through and present thel end of the round to the open jaws of the foot nipper E. By placing the foot on the treadle T the jaws are closed upon and hold the piece, and at the same time the frame F is made to draw back, carrying with it the nip ers and piece and raising the counter weig t Y. hen through the foot is withdrawn and the weight brings the sliding frame back to its lace. The rounds are afterward placed and held by hand in the tenoning machine, and thus inished ready for use.

What I claim as my invention, and desire to secure by Letters Patent, is-

1. The combination of the rotating cutter A a provided With a. gage 1", regulating the diameter of the rounds or cylinders, with the nip ers N and E for forming chair stuff.

2. Aliso I claim the arrangement in the 5 tenoning machine of the regulating screw V and cap I with the ehamfer chisel C', for the purpose set forth.

In testimony whereof I have hereunto signed my name before two subscribing Witnesses.

ALEXANDER EDMONDS. Witnesses:

DAVID L. WATERS, Jr., JOHN T. CLARK.

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