US270772A - Stave-machine - Google Patents

Description

(No Model.) 2 Sheets---Sheet 1 P. FLANDERS.

STAVE MACHINE.

Patented Jan. 16,1883.

N. PEPERS. Phum-Ln 2 Sheets- Sheet 2,

7 P. F-LANDERS.

v (No Model.)

'STAVE MACHINE.

Patented Jan. 16,1883.

Wain/we" 6/6.

l UNITED STATES PATENT OFFICE.

PETER FLANDERS, OF LOWELL, MASSACHUSETTS.

STAVEL-MACHINE.

SPECIFICATION forming part of Letters Patent No. 270,772, dated January 16, 1883. Application filed April 10,1 882. (No model.)

- machines in which concave and convex cutters are employ ed to dress the outer and innersurfaces of the staves, and jointing-cutters are moved automatically in and out while they are jointing the stave, so as to give ittherequired increase in width at the center.

The invention has for its object to provide improved mechanism for moving the jointingcutters in and out, and also to provide an improved arrangement of feed-rolls, whereby the staves are drawn through the machine.

To these ends myinvention consistsin the improvements hereinafter described and claimed. Of the accompanying drawings, forming a part of this specification, Figure 1 represents a top view of a stave-machine embodying my improvements. Fig. 2 represents a side elevation of the same. Fig. 3 represents a transverse section on line 5000, Fig. 1. Figs.4,5, and 6 represent transverse sections, respectively, on lines 3 y, z z, and z a, Fig. 1. Fig. 7 represents alon gitudinal section on linez z Fig. 1.

The same letters of reference indicate the same parts in all the figures.

In the drawings, A represents the support ing-frame of the machine, having at one end a horizontal bed, B, which is slotted longitudinally for the'passage of an endless chain, 0, having dogs D arranged to grasp and feed forward the 'staveblanks, which are laid by the attendant on the bed B between adjustable edge-guides E E. The chain 0 passes over drums F G,journaled in the frame A, the drum F being positively rotated bysuitable power.

The stave-blanks are held down as they are moved forward by the chain by a roll, H, located immediately behind the jointing-cutters I I. These cutters are mounted on vertical or nearly vertical arbors J J, which have their bearings in frames K K. These frames are pivoted at L to a fixed lug, L, on the frame A, so that each frame K can oscillate laterallyof said frame A, or in a plane at right angles to the direction of movement of the stave-blanks.

M M represent slides adapted to move laterally of the frame A in suitable guides, and having orifices N N,.through which the arbors J J pass. The outer ends of the slides M M are provided with adjustable collars 0O, having slots P P, into which project cams Q Q on a positively-rotated shaft, R, which is driven by suitable connections with the prime motor.

The cams are so formed that when they rotate they reciprocate the slides M Msimultaneously in opposite directions. Said slides by their engagement with the arborsJ cause the frames K K to oscillate independently on their pivot, and thus move the cutters I I alternately-toward and from each other. The cutters l I are continuously rotated by a belt or belts applied to pulleys S S on the arbors J J, and their described lateral movement causes them to give the staves theusual varying width, decreasing in both directions from the center, the lateral movements of the cuttersbeing so timed with relation to the longitudinal movement of the stave-blanks that when the forward end of a blank comes between the cutters they willbeattheinwardcxtremeoftheirmovement. The cutters thenmove outwardly until thelongitudinal center of the blank has passed them, when they will again move inwardly until the rear end of the blank passes the point where they act. Each stave, after it has been acted on by the cutters I I, is passed by a pair of feed-rolls, T T, between a rotary cutter-head, U, and a feed-roll, V. The head U has concave cutters a a, which impart a convex form to the upper surface of. the stave-blank. Be-

ing convex cutters g g, which impart a concave form to the under surface of the stave. The stave is thus completed, and is passed out of the machine between two feed-rolls, h i, the former having a concavity fitting the upper surface of the stave and the latter a corresponding convexity fitting the lower surface.

It will be seen that by the provision of the concavities in the feed-rolls b e h, and the convexity on the feed-roller t, each stave is prevented from lateral displacement, and is kept in the proper line of movement after passing from the first cutteruntilitleavesthe machine, there being little or no liability of the stave swinginglaterally while in contact with either of said feed-rolls on account of the closeness with which they fit its surface.

The cutter-heads U fare preferably driven by belts upon pulleysjj on the arbors of said heads, and the feed-rolls are preferably driven by a system of gearing, as shown in Fig. 2.

I am aware that it is not new in stave-machines to move jointing-cutters in and out to give the stave the required variation in Width. Hence I do not claim this feature broadly. I am not aware, however. that the arbors of the jointing-cutters have ever been journaled in frames pivoted to a-fixed support. Said construction is more simple and involveslcss wear and friction than any other ofwhich I am aware.

The collars 00011 the slides M are made adjustable on the'slides, and are held at any desired points by means of set-screws. By adjusting said collars the cutters II can be adapted to different widths of staves.

I claim 1. The combination of thearbors J J, having the cutters I I, the pivoted frames K K, the slides M, the positively-rotated cams Q. the adjustable collars O on the slides M, and means for positively holding said collarsin any position to which they may be adjusted, and thereby adapting the cutters to staves of different widths, as set forth,

2. In a stave-machine, the combination ,of the cutter-head U, hating the concave cutters, the cooperating straight feed-roll V, the feedrolls 1) 0, one having a longitndinally-concave and the other a straight feeding-surface, the cutter-head f, having the convex cutters g g, the co-operating feed-roll 6, having a longitudinally-concave surface, and the feed-rolls h i, one having a longitudinally-concave and the other a convex feeding-surface, as set forth.

In testimony whereof I have signed my name to this specification, in the presence of two subscribing witnesses, this 13th day of March, A. D. 1882.

PETER FLANDERS.

Witnesses O. F. BROWN, A. L. WHITE.

Images