Wood-milling machine.

Abstract

Claims

PATENTED JULY 711908. G. A. KRAUss. WOOD MILLING MACHINE. APPLIUATIOH FILED NOV.16, 1905. Q;QJVK UNITED STATES OFFICE. GUSTAV ALBRECHT KRAUSS, OF CHEBINITZ, GERMANY. WOOD-MILLING MACHINE To all whom it may concern: Beit known that l, GUs'rAv ALBRnonT KRAUSS, a subject of the German Emperor, and resident of No. 11 Zieschestrasse, Chemnitz, Germany, have invented certain new and useful improvements in a lood-Milling Machine, of which the following is a specification. The object of the present invention is a contrivance for conducting the work to and carrying it from the wood-milling machine. The accompanying drawing represents a form of construction of the invention and it shows: Figure 1 a front view, Fig. 2 a side view, Fig. 3 a top view, Fig. '-i shows a central vertical cross section view of Fig. l. The revolving cutter-head a having its driving pulley al is fixed on a frame A, B to which cutter-head the cutter corresponding to the shape of the piece of work is attached. On the stand is further to be found the carriage b which is dove-tailed into the two sides of the frame. On the carriage b is fixed a revolving horizontal shaft c which bears a feeding cylinder consisting of three likesized disks r, q and f, two of which are stationary while the third f can be regulated according to the length of the piece of wood to be milled. Holes are bored at regular distances in the outer edges of the disks q and s to carry the centers o for the piece of work. Each center-punch axle o (the present apparatus has four) is passed through corresponding holes on the two fixed disks q and 1^ between which a cylindrical spring ol has been inserted. Disks s are placed on the axleends protruding` beyond the outer disk r while on the ends which protrude beyond the middle disk q is attached a cam g which is formed oval, quadrilateral, quintagonabhexagonal or octagonal according to the shape of the wood to be worked, and in front of this the tappet 7c must be screwed on. The cam g glides on the adjustable arm c attached to the frame. As soon as the piece of work and therewith the cam g begin to move the carriage l) is set in motion as it is drawn towards the cutter by the weights (l. The rotation of the centers is caused by friction. The rubber pulley u is set in motion by the driving wheel e which is situated on the same axle w. This axle w is attached to a movable arm z/ affixed to the frame at the point m. A' weight n attached to a cord fastened to the top of the frame and ruiming over a mov- Speeication of Letters Patent. Application filed November 16, 1905. Patented July '7, 1908. serial No. 287,587. able pulley o a'llixed to the arm y, presses the arm y forwards, the rubber pulley u is forced against the friction disk s which is there set in motion. Their one piece of work is finished, the lever i which rests lightly on the shaft c is vpressed 90 upwards, from the horizontal position shown in the accompanying drawing by means of which the arm 7L raises the catch l out of its notch t and the hook p slips on to a peg fc attached to the center disk g, By a second movement of the lever L 90 downwards, whereby it attains the position shown in accompanying drawing, the cylinder is turned round. Q00 and thereby another piece of work is placed under the cutter head. The catch l falls into the next notch t, of which four or more are on the disk q, and the cylinder is held in position until the catch is again pressed upwards. In this time the workman can fit in another piece of work and so it is quickly finished one after another. when the lever i has reached the position shown in Fig. 2 it has also another purpose to fulfil. A revolving bolt t1 with an arm t2 attached is al'lixed to the frame see Fig. 3. As the levert' descends it strikes the arm t, whereon the bolt t1 presses the friction disk s somewhat outwards so that a piece of work which was fixed in the center belonging to thesaid i, slidable base, a revolvinghorizontal shaft c on this carriage, three disks q, and 1^ on said carriage two of which q and 'r have holes and are fixed in position on said shaft, disk f adjustably situated on the same shaft c, centers o 'fitting the said holes loosely and pro' jecting to the outer sides of the disks q and fr, springs o1 around the said centers placed between the two rigidly attached disks q and r, for pressing the centers carrying the wood against the disk disks s fastened on the one end of the projecting centers o, cams g fastened to the other end of the centers o, an arm c attached on the said frame which acts as a buffer to the cams g, means for drawing the carriage against the arm c, a shaft i0 on the frame with pulleys 2', a rubber pulley u on the said shaft, a lever movably fastened on the carriage for revolving the disks g and 1, means for moving the centers for loosening the Jnished work out of the disks, means for pressing continuously the said rubber pulley against the disks, substantially as set forth. 2. In a wood milling machine of the character described the combination a frame, a revolving cutter head a, fixed on the frame, with cutters adapted to the shape of the piece of work, a carriage b sliding on the frame, dove-tailed shaped guiding bars on f the frame, a revolving horizontal shaft c on this carriage, three disks f, g, and r on said carriage two of which g and r have holes and are fixed in position on said shaft, disk f adj ustably situated on the same shaft c, centers o fitting the said holes loosely and projecting to the outer sides of the disks g and r, springs o1 around the said centers placed between the two rigidly attached disks g and r, for pressing the centers carrying the pieces of wood against the disk j", disks s fastened on the one end of the projecting centers o cams g fastened to the other end of the centers o, an armfve attached on the said frame which acts as a' buffer to the cams g, Weights d for drawing the carriage against the arm e, a shaft 'w on the frame with pulleys z, a rubber pulley u on the said shaft, a lever movably fastened on the carriage for revolving the disks q and r, an arm with parts t1 and t2 held in said frame by a support for moving the centers for loosening automatically the finished work out of the disks when the lever i descends against t1 of the said arm, an arm y turnably fastened on the abovefmentioned frame, bearing the said aXle w, a pulley u affixed to the said arm y, a Weight n attached by a cord to the frame and running over the said pulley 11 for the purpose of continually pressing the rubber pulley u against the disks s, substantially as set forth. In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses. GUSTAV ALBRECHT KRAUSS. Witnesses: EMIL RBIG, WALTER ROTTLOFF.

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