US351895A - Metal-planing machine - Google Patents

Description

(No Model.)

G. W. BEAN.

METAL PLANING MACHINE. No. 351,895. Patented Nov. 2, 1886.

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WITNESSES.

IIVVE/I/TOI? g y 41017 am ATT RNEY I UNITED STATES;

PATENT O FICE.

GEORGE W. BEAN, OF NEW HAVEN, CONNECTICUT.

METAL-PLANING MACHINE.

SPECIFICATION forming part of Letters Patent No. 351,895, dated November 2, 1886.

I Application filed September 13,1886. Serial No. 213,443. (No model.)

To all whom it may concern.-

Be it known that I, GEORGE W. BEAN, a

resident of the townof New Haven, in the State of Connecticut, have invented new and usefullmprovements in Shipping Mechanism for Metal-Planing Machines, of which the following is a specification.

Myinvention relates to shipping mechanism for metal-planing machines and similar recip rocating devices, and has for its object to provide means for releasingthe belt-shifter from the reversing mechanism at the end of its throw, whereby the shifter is made independent of the momentum of the planer-bed or.

platen after the belts are in position at each reciprocation of the mechanism.

The invention consists in the combination of a disengaging rock-arm with a pair of dogs carried upon the belt-shifter, as hereinafter more fully described and claimed.

In the accompanying'drawings, Figure 1 is a plan view of the cross-head end of a planerframe,showing the driving-pulleys and my improved shipping mechanism. Fig. 2 is a side elevation of the shipping mechanism, and Fig. 3 is an enlargedview in horizontal section of one of the tripping-dogs.

Referring to the drawings, A denotes the bed of a planer of the usual and well-known construction, and b, 6 b and 1) denote the driving-pulleys, arranged upon a common shaft, 12 which imparts motion to the planertable or platen through the usual train of gears. (Not shown.) The inner wheel on one side of the planer is fast to the shaft, while the opposite inner pulley is a loose one, and

the outer pulleys are also one fastto the shaft and the opposite'one loose, there being one fast and one loose pulley upon each end of the shaft. The belts run upon the pulleys i-n opposite directions, and a belt-shifter, c, is arranged over the pulleys in suitable bearings in the planer frame, and carries at each end a belt-guide, d. The belt-guides are adjusted at the proper distances apart to hold the belts respectively upon one tight pulley and the opposite loose pulley, and vice versa. All these parts are well known, and require no further description.

A pair of collars or parts, at, are fastened upon the beltshilter c by set-screws or similar planer-table.

devices, which permit the adjustment of the parts as required. To each of the parts is pivoted a tripping-dog, e, and both dogs are set to trip toward each other, but are prevented.

Upon one of thecross-beams of the planerframe is pivoted'a rock-arm, g, which is vibra'ted by the action of the planer-dogs i at each reciprocation of the planer-table by means of the ordinary connecting-rod, h, and rockshaft k, provided with the exterior and interior arms, H. The rock-arm carries an adjustable bar or arm, which isextended to just enter between the tripping-dogs when the belt-shifter is midway of its movement. In operation, as the shifter is moved slightly in either direction from its central position, the bar 1), which moves in an arc, disengages from the tripping-dogs, which move in aright line, and therefore recede from the bar in proportion to their distance from the central position. As soon as'the rock-arm is disengaged from the dogs the movement of the belt-shifter ceases, though the planer-table may be moved somewhat farther by its momentum before it is brought to rest by the action of the oppositelymoving belt. \Vhen the table is again reversed, the bar on the rock-arm swings past and tips the nearest tripping dog, and thus enters between them and engages the opposite dog to shift the movement of the planer-table in. a reverse direction. This operation is repeated at each successive reciprocation of the The dogs can be adjusted 011 the shaft by means of the set-screws by which they are fastened, and the bar 19 may be adjusted on the rock-arm to give any required throw to the belt shifter or to compensate for wear. By

means of this device the planer may beshipped in much shorter space than with the ordinary shipping devices, and the belt-shifter cannot be carried beyond its proper position in either 100 direction by the momentum of the planertable. It is evident that this shipping mech anism may be used on planers provided with friction-clutches, for which it forms a superior shipping device.

I claim as new and desire to secure by Letters Patent- 1. In shipping mechanism for metal-planing machines, the combination, with a vibrating rock-arm pivoted on the planer-frame and actuated by the movement of the planerdogs, of a pair of tripping-dogs secured upon the belt-shifter and having rectilinear movement, whereby theyare released from engagement with the rock-arm at certain positions in the path of the point of the arin and disengaged from the action of the planer-bed, as and for the purpose specified.

2. In combination, the belt-shifter c, supported in hearings in the planer-bed and adapted to traverse in a rectilinear path, the

tripping-dogs 0, pivoted in their respective holders 11, secured upon the belt-shifter, the rock-arm g, pivoted on the planer-frame and carrying an adjustable arm or extension adapted to engage the tripping-dogs, and means for vibrating the rock-arm by the motion of the planer-bed, substantially as specified.

3. In eombination the belt-shifter c, the tripping-dog's e, the holders n, the springs f, the rock-arm g, carrying the arm or extension 1;, the connecting-rod h, the rock-shaft 7c, the rock-arn1s Z Z, and the planer-dog's i, all combined substantially in the manner and for the purpose specified.

GEO. \V. BEAN.

\Vitnesses:

J ULIUS TWISS, GEORGE L. Burn-1s.

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