US596555A - Setts - Google Patents

Description

('No Model.) 3 Sheets-Sheet 1. H. R. TILLISON 82: O. W. H. .BLOOD.

' PLANING MACHINERY No. 596,555. Patented Jan. 4, 1898.

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No. 596,555. Patented Jan.4,1898.

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- PLANING MACHINERY.

No. 596,555. Patented Jan. 4,1898.

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UNITED STATES;

PATENT EEIcE.

HOSEA R. TILLISON AND CHARLES W. H. BLOOD, OF BOSTON, MASSACHU- SETTS, ASSIGNORS TO THE S. A. WOODS MACHINE COMPANY, OF SAME PLACE.

PLANING MACHINERY.

SPECIFICATION forming part of Letters Patent'No. 596,555, dated January 4, 1898.

Application filed June 29 1894-.-

nection with the accompanying drawings, is a specification, like letters on the drawings representing like parts.-

This invention in woodworking machinery has more especial reference to planing and other machines in which rotating cutters are employed, one of the principal objects of the invention being to provide simple and efficient means for clamping in adjusted position the bearing-boxes in which the cutters are journaled. I11 accordance with this part of our invention we provide a suitable connection, preferably a headed bolt, between the bearing-box and its support, cooperating with which, either directly or indirectly, is a cam, rotation of which acts through said connection to clamp the bearing-box tightly in position against the support. A yielding or spring cushion is preferably interposed between the bearing-box and the said cam, said cushion serving to retain the bearing-box against its support when the connection is loosened for adjustment. 1

Other features of our invention will be hereinafter described, and pointed out in the claims.

In the drawings, Figure 1 is a partial side elevation of a planing-machine embodying our invention; Fig. 2, a vertical sectional detail taken through one of the bearing-boxes, showing one form of clamping and adjusting mechanism; Fig. 3, a cross-sectional detail Serial No. 516,100. (No model.)

erected upon the frame, it being understood that like stands are erected at opposite sides the frame and that in all respects, unless otherwise specified, the construction ofmechanism at both sides the machine is the same, so that a description of the mechanism at one side will be sufficient to enable the invention to be clearly understood.

Referring particularly to Figs. 1 to 4, the

stand B, provided at one edge with the usual inclined face I), is slotted, as at b, to receive the connection, herein shown as a bolt 0, carried by the bearing or journal box 61, in which is journaled the cutter-shaft c, said box being shown as connected by a usual yoke f with its companion box at the opposite side of the machine. (See Fig. 7.) The connection or bolt 0 has its head provided with an eye, through which is passed the cam-shaft h, journaled at its upper end in a suitable bearing h, fixed to the top of the stand B and held in position against longitudinal movement in said bearing by collars 71, 7L2 thereon, said shaft at its upper end being squared, as at 71. or otherwise suitably formed to receive an operating-handle 721 which may or may not remain in fixed position on the shaft. a

Between the camshaft h and the back face of the stand B is shown interposed a clamping-plate m, the flat face of which cooperates with the fiat face h on the cam-shaft (see Fig. 3) to clamp the box to the stand when the shaft is rotated, as will be hereinafter described.

That end of the connection or bolt 0 opposite the eye-head is threaded to receive the nut 0, between which and the face of the box is preferably interposed a yielding cushion, shown as a helical spring a.

The operation of the clamping mechanism is as follows, viz: lVith the parts in the positions shown the spring or cushion n acts against the nut c and presses the bearingbox tightly against the inclined face of the stand, yet not with such force as to prevent the said box being adjusted vertically on and with relation to the said stand. When the boxes at the opposite sides of the machine have been adjusted, which may be done in any suitable manner, herein by means of the usual screws 0, Fig. 1, rotated through miterwheels from the horizontal shaft 0, provided with a crank 0 it becomes necessary to clamp the said boxes in their new or adjusted positions. This is effected in our present invention by rotating the cam-shaft it through, say, one-quarter of a revolution or sufficient to turn its flat face h away from the flat face of the interposed plate m, thereby drawingback upon and in the line of the bolt or connection c sufficiently to completely compress the cushion n and clamp the box tightly against the stand.

It will be seen that the nuts,with the springcushion 72, when fully compressed, form, in effect, an unyielding washer between the nut and the box, so that proper adjustment of the nut on the connection enables the box to be rigidly and unyieldingly held against the stand. When it becomes necessary to readjust the box,the cam-shaft his turned back to its position, Fig. 3-41. 6., with its fiat face h in contact with the fiat face of .the interposed plate mthereby loosening the connection 0 sufficiently to enable the box to be moved up and down the stand, as desired, the eye-head of the connection sliding along the cam-shaft h as the box is adjusted, the spring-cushion 1?, during this time pressing the box against the stand, so as to prevent dust and chips from getting between the box and the stand.

Should chips get between the box and the stand, the box could not be drawn back into its proper position against the stand and would thereby draw the cutter out of alinement, but by our invention the box is always pressed against the stand to exclude dust and chips, and is, in effect, bolted to the stand in its adjusted position by means of the camshaft h.

In the construction shown no bearing is necessary at the lower end of the cam-shaft h, inasmuch as the entire strain of clamping is received by the interposed clamping-plate m, which moves vertically with the bearingbox when the latter is adjusted, and the connection c.

In practice we prefer to connect the camshafts at opposite sides of the machine, so that both may be operated from one side, and for this purpose Fig. 4. shows the handles k at opposite sides of the machine connected by a link h, which enables the boxes at opposite sides of the machine to be adjusted simultaneously. Figs. 5 and 6 show this part of our invention applied to bearing-boxes for side heads of spindles. Referring to said figures, P represents one of the overhanging brackets at the feeding-out end of the machine, the two side arms being joined in usual manner by the cross-bar or yoke 19, in which is formed a slot to receive the gib p on the face of the bearing or journal box 192, in which is journaled in suitable manner the usual side-head spindle 19 The threaded bolt 19 and fulcrum plate or washer p constitute the connection between the bearing-box and itssupport 19, said bolt in the present instance having a head p between which and the interposed fulcrum-plate p is arranged the spring-cushion 19 The fulcrum-plate p rests against the support 19 and at its opposite end in contact with the cam-shaft 19 similar in shape to the cam-shaft 72, Figs. 2 and Rotation of the cam-shaft p acts,through the fulcrum-plate p, to clamp or release the connection 19 and the bearing-boxgfi. The fulcrum-platep constitutes a Washer or extended head to the bolt 19 thus permitting the placing of the springcushion 19 at the opposite end of the bolt from the construction shown in Fig. 2, the connection being otherwise arranged to slide along the cam-rod, substantially the same as shown in Fig. 2, for the adjustment of the bearingbox.

In the embodiment of our invention herein shown the bearing-box is connected with its support by an independent connection-viz., a threaded bolt. This connection need not, however, necessarily be independent of the bearing-box itself, for it matters not whether the connection is independent of or integral with the said box so long as the operation of the cam clamps the box in position, as described.

In the embodiment of our invention shown each bearing-box is provided with a single clamping device only; but it is obvious as many clamping devices may be employed as necessary to clamp any single box in proper working position.

This invention is not restricted to the particular construction or arrangement of parts herein shown, for the same may be varied without departing from the spirit and scope of the invention.

Having described one embodiment of our invention and without limiting ourselves as to details, what we claim, and desire to secure by Letters Patent, is-

1. In a machine of the class described, the combination with a support, of a bearing-box made adjustable thereon, a connection on and movable with said box and extending to the back of said support, a yielding cushion interposed between said bearing-box and said connection, said bearing-box being between said cushion and said support, and a rotatable cam-rod on said support and along which said connection slides during adjustment of said box, rotation of said cam-rod acting through said connection to clamp the box to the support, substantially as described.

2. In a machine of the class described, the combination with a support, of a bearing-box made adjustable thereon, a bolt connection passed through the said box and provided with an eye beyond said support, a rotatable camrod passed through said eye arranged on said support and along which the said connection is movable during the adjustment of the box, rotation of said cam drawing the said box and support together, and a yielding cushion interposed between the said box and connection to maintain the former in contact with the said support when the said connect-ion is loosened, substantially as described.

3. A bed, a cutter-spindle, adjustable bearing-boxes for the ends of said spindle, a support for said bearing-boxes; connections on and movable with said boxes, independent cam-shaped shafts on which said connections slide during adjustment of the boxes and which act through the medium of said connections to clamp said boxes in adjusted position, and means to operate said cam-shaped shafts sim ultaneously, whereby either orboth ends of said spindle may be shifted into desired adjustment, substantially as described.

4. The combination with a support, of a bearing-box made adjustable thereon, a rotatable cam-rod pivoted at one end to said support and arranged with its axis substantially parallel with the line of box adjustment, a connection on and movable with said box, said connection being provided with an eye at one end to receive said cam-rod for adjustment longitudinally therealong, and having an adjustable head at its other end, and a coiled spring interposed between said box and said adjustable head whereby said spring may be adjusted to render said box connection partially or entirely rigid, as desired, when in clamped position, and yet have a yielding connection for said box when the latter is being adjusted, substantially as described.

5. The combination with a support, and a bearing-box carried by and adjustable along said support, of a cam-rod arranged at that side of said support opposite said bearing-box, and provided with a cam-surface extending from end to end of said cam-rod, and a connection movable with said box and leading therefrom tothe back of said support, and

there embracing said cam-rod to be acted upon by the latter at any point in the length thereof to draw said bearing-box against said support in any adjusted position of the said box on said support, substantially as described.

6. The combination with a support, and a bearing-box carried by and adjustable along said support, of a rotatable cam-rod arranged at that side of said support opposite said bearing-box, and provided with a cam-surface extending from end to end of said cam-rod, and a connection movable with said box and leading therefrom to the back of said support, and there embracing said cam-rod to be acted upon by the latter at any point in the length thereof to draw said bearing-box against said support in any adjusted position of the said box on said support, and a spring cooperating with saidconnection to hold the box against its support during adjustment and while the box is not clamped in its adjustment, substantially as described.

7. The combination with a support, and a bearing-box carried by and adjustable along said support, of a rotatable cam-rod pivoted to said support opposite said box and arranged with its axis substantially parallel with the line of box adjustment, an eyebolt on and movable with said box, said cam-rod being passed through the eye of said bolt, said bolt being provided with a member movable therewith, against which the said cam-rod may bear, as it is rotated, and thereby tighten said bearing-box into clamped position against said support, substantially as described.

In testimony whereof we have signed our names to this specification in the presence of two subscribing witnesses.

HOSEA R. TILLISON. CHARLES W. H. BLOOD.

Witnesses:

FREDERICK L. EMERY, JOHN C. EDWARDS.

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