US314666A - Feed mechanism foe wood planing machines - Google Patents

Description

(No Model.) 2 SheetsSheet 1.

W. H. GRAY.- FEED MECHANISM FOR WQOD PLANING MACHINES. N6. 614,666. Patented M&1.31, 1885.

N. PETERS. Phalo-Lilhngmphcr. Washinglow n. c.

(N0 ModeL) 2 Sheets-Sheet 2.

w. H. GRAY. FEED MEGHANISM FOR WOOD'PLANING MACHINES. No. 314,666. Patented Mar. 31, 1885,

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WILLIAM H. GRAY, OF BROOKLYN, NEW? YORK, ASSIGNOR TO THE GLEN COVE MACHINE COMPANY, LIMITED, OF SAME PLACE.

FEED ltlECI-iANlSM FOR WOOD-PLANING WEACHENES.

SPECIFICATION forming part of Letters Patent No. 31%,666, dated March 31, 1885.

Applir atiou filed January 26, 1885. (No model) To (ZZZ whom it may concern.-

Be it known that 1, WILLIAM H. GRAY, of BrooklymQGr-e'en Point,)in the county ofKings and State of New York, have invented a new and useful Improvei'nent in Feed Mechanism for \VoodFlaning Machines, of which the following is a specification.

In the application for Letters Patent, Serial No. 153.957,tiled January 26, 1885, by William H. Gray and Alfred Hutchinsomthere is shown and described a feed mechanism for woodplaning machines which comprises a shaft having a uniform rotary motion,and on which are secured a number of conical frictionwheels of different sizes, and a second shaft parallel with the first and having upon it re versely-set conical friction-wheels,which may he slid on the shaft to bring them into and out of frictional engagement with the first mentioned wheels. By this arrangement of parts the second or driven shaft may be rotated at any one of a number of definitelyfixed speeds equal to the number of frictionwheels on the first-mentioned or uniformlyrotating shaft. I The object of my. present invention is to provide a feed mechanismwhich is capable of adjustment to produce any variation of speed in the second or driven shaft within certain limits, and which is not confined to a number of definitely-fixed speeds,as is the mechanism described in the above-referred to application, and also to provide for readily stopping the action of the feeding mechanism at any time without changing the rate of speed, and then adjusting or returning it into condition for operation at the same speed.

The invention consists in novel combinations of parts and features of construction, hereinafter described, and pointed out in the claims.

In the accompanying drawings, Figure 1 is a side elevation of Such parts of a planing-machine as are necessary to illustrate my invention. Fig. 2 is a longitudinal vertical section of the same. Fig. 3 is a plan thereof, and Fig. at is a detail sectional view hereinafter described.

Similar letters of reference designate corresponding parts in all the figures.

A designates portions of the side frames of the machine, and B the driving-shaft arranged in bearings a at the front or feeding end thereof.

Upon the shaft 13 are fast and loose pulleys B B for a driving-belt, and two other pulleys,

B B one at each side of the machine, and

around which pass belts B, for operating the upper cuttcr head, G. The journals 1) of this cutter-head will be supported in boxes like those ordinarily used, and which are not shown, as they constitute no part of my invention.

D D designate the upper and lower feedrolls, which are operated by a suitable train of gear-wheels from the feed-pinion shaft D which is mounted in boxes 0. I have here shown in dotted outline in Fig. 2 a pinion, d, a wheel, d, a pinion, d", and a Wheel, (1 on the shaft of the lower feed-roller, D; but this train of wheels may be varied, as desired. The appurtenances for holding the feed-rolls in proper relation to each other and for driving the upper roll from the lower one may be similar to those shown in the aforesaid appli cation, and are not here shown, as they are not comprised in this invention.

In their travel between the pnlleysB and the pulleys on the cutterhead G, the belts B" partly encircle pulleys E on a transverse shaft, E, which is mounted in boxes 0, and thereby impart a positive and uniform speed of rotation to said shaft. When the machine has a lower cutter-head, it maybe driven by belts passing around the pulleys E under the belts B.

F F, designate two long cones or conical drums, which may be termed, respectively, the driving-cone and the driven cone. The driving-cone F is at the front or feeding end of the machine, and has bearings fin a frame, F*, which is provided at the ends with pivots or trunnions f entering holes or hearings in the side frames, A. Consequently the frame F and the cone F can be swung on these piv ots as on a center.

In order to hold the frame up and support its free side, I have shown a rock-shaft, g, in bearings 9, said shaft having arms 9 which project under and support the free edge of the frame I*, and also having an upwardlyextending arm or handle, 9 whereby it may be turned to raise and lower the frame.

In order to hold the frame F against falling, I have shown in Fig. l a notched quadrant-bar, g, and on the handle or lever g is a locking bar or rod, 9 like an ordinary reversing-lever. At the end of the notched bar 9 is a shoulder, 9 forming a stop beyond which the lever g cannot go. the shaft of the cone F is a pulley, h, which receives motion by a belt, h, from a pulley, h, on the shaft E. Below the upper portion or travel of this belt h, I have shown a fixed support or rest, h, as shown by dotted lines in Fig. 2.

From the above description it will be seen that, if the cone F and cone-frame F be swung down, as in Fig. 2, the belt h will be slackened and will no longer drive the cone. In this way I stop or suspend entirely the feeding operation without changing the speed; or, in other words, I may drop the frame F* and entirely stop feeding,- and then when the frame is again raised the feeding will be continued at the same speed as before.

The cone or conical drum F is in fixed bearings in a frame, F, and the two cones are connected by a belt, F through which the cone F. drives the cone F. I

Loose upon the driving-shaft B are two pulleys, i i, which are cast together, as shown in Fig. 4, or connected so as to revolve loose on the shaft as one piece. 7 These pulleys are driven by a belt, 6 running from a pulley, i on the shaft of the cone F to the pulley i; and by a belt, 2', running from the pulley i to a pulley, i motion is transmitted to the pinionshaft D" of the feeding mechanism.

It will be understood that, by shifting the belt F, the speed of rotation transmitted from the cone]? may be varied to any degree desired within limitsfixed by the relative sizes of the two ends of the cones, and this belt may be shifted by a beltshipper, j, having a nut fitted to-a screw-threaded shaft, j, extending transversely across the machine and adapted to be turned by a handle or handwheel, 7' at one side thereof. When it is .desired to vary the speed of feeding, the shaft jis turned to-shift the belt F and,when itis desired to temporarily suspend feeding, the

cone F and swinging frame F* are lowered to slackenthe belt h.

The cones or conical drums F F may be of Wood or of metal, or they may be composed of heads having a conical' covering of sheetmetal.

On the end of What I claim as my invention, and desire to secure by Letters Patent, is

'1. The combination, with the feed-pinion shaft and driving-shaft of a wood-planing machine, of a shaft, E, and pulley E, a belt, B, for driving the upper cutter-head, passing over and driving the pulley E, two reverselyset cones or conical drums, and a belt and beltshipper for transmitting a variable speed from one to the other of them, and belt-gearing for driving one cone from driving the feed pinion shaft from the other cone, substantially as herein described.

2; The combination, with the shaft E, the feed-pinion shaft D", and the two cones F F with their connecting-belt and-shipper, of the driving shaft B and the pulleys 'i i loose thereon, belts connecting the pulleysz' z" with the driven cone F and the shaft D", and beltgearing for operating the driving-cone F, all substantially as herein described.

3. The combination, with the drivingshaft and feed-pinion shaft of a wood-planing ma chine, of a pair of reversely-set cones or conical drums wit-h their connectingbelt and shipper, belt-gearing for operating the driving-cones, belt-gearing'for transmltting motion from the driven cone to the said feedthe shaft E and for pinion shaft, and moyable boxes for one of 0 said cones, whereby the belt gearing may be slackened to suspend feeding, substantially as herein described.

4. The combination, with the pairs of cones F F, with their connecting-belt and shipper, of a swinging frame for the cone F, a belt for driving said cone, and which is'slackened by the swinging movement of the said frame, and belt-gearing for transmitting motion from the cone F to the feed pinion shaft of the machine, substantially as herein described. 7

5. The combination, with the cones FF, bearings for the cone F, and belt-gearing for transmitting motion from the cone F, of the swinging frame F for the cone F, and levers and connections for swinging said frame, a belt, h, for operating the cone F, and a belt support or rest, h for the belt h, substantially as herein described.

WM. H. GRAY.- Witn esses:

THEO. L. O. HOWE, J. W. FRASER.

ICO

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