US392126A

US392126A - Wood-cutting machine

Info

Publication number: US392126A
Authority: US
Publication date: 1888-10-30
Anticipated expiration: 1905-10-30

Description

(No Model.)

A. M. LEMKE.

WOOD CUTTING MACHINE.

Patented Oct. 30, I888.

j UNITED STATES PATENT rrrcn.

ALEXANDER M. LEMKE, OF EAST SAGINAYV, MICHIGAN.

WOOD-CUTTING MACHINE.

SPECIFICATION forming part of Letters Patent No. 392,126, dated October 30, 1888.

Application filed May 28, 1888. Serial No. 275,309, (No model.)

To all whom it may concern.-

Be it known that I, ALEXANDER M. LEMKE, a citizen of the United States, residing at East Saginaw, in the county of Saginaw and State of Michigan, have invented certain new and useful Improvements in Wood-Cutting Machines; and I do declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, and to the letters and figures of reference marked thereon, which form a part of this specification.

This invention relates to improvements in refuse-wood-cutting machines, the object and utility of which are to provide a machine for cutting or reducing culls or refuse pieces of wood into fine particles, so as to enable the same to be carried through the ordinary dustconveyers to the boiler-room to be used for fuel, obviating the time and expense of conveying such material by hand.

Machines of this class as have heretofore been constructed consist of a heavy revolving wheel carrying in its peripheral sides a series of cutting-knives, and is supported in a solid frame-work having at one end a feed-spout with throat-plate, the upper portion of the wheel being inclosed with a suitable case fitted to the frame. The foregoing manner of construeting such machines is found to be objectionable for the reasons as follows: These machines, as a general rule and matter of convenience, are located under the flooring of factories and mills. The revolving wheel employed in these machines is a very heavy structure, weighing from twelve to fifteen hundred pounds, and, being supported in a solid framework,can only be removed by the use of hoisting devices, involving much time and expense whenever it is found necessary to examine or repair the j ournal-boxes or wearing parts; and, further, it is found that frequently chips and pieces of bark are caught and collect between the periphery of the wheel and its inclosingcase, where they bind and retard the free action of the wheel, decreasing the power of the machine, producing friction and strain on the journal-bearings, causing them to become heated, and frequently melting the babbitting of the bearing parts.

The foregoing objections are overcome and the objects sought are attained in my present device, as will be seen from the following specification, reference being had to the accompanying drawings, in which- Figure 1 is an isometrical view of the machine as constructed according to my invention, showing the inclosing-case raised and one end of the frame detached to allow the cutting-wheel to be rolled out ofits frame. Fig. 2 is a side elevation of Fig. 1, the parts of the inclosing-frame being in section. Fig. 3 is a detail view of the periphery of the wheel,showing the stripping or cleaning pins located in the periphery thereof. Fig. 4 is a detail view of the locking device for securing one end of the case to the frame.

In the letters of reference in the drawings, WV represents the whcel,which is of the usual form, being rigidly attached to the shaft F, carrying the pulley m, and K represents the cutting knives secured to the sides of the wheel, the edges of which project through the sides of said wheel in the usual way, as shown in Figs. 1 and 2.

D shows the base or supporting frame, S the feed-spout formed integral therewith, and P the throat-plate secured to the bottom plane of the feed-spout,which is also common in this class of machines.

E represents the removable end of the baseframe D, which is secured within the sides of the frame D at one end by means of the screwthreaded bolts 2,which pass through the sides D and enter the screw-threaded holes 3 in the ends of the removable end E, as shown clear] y in Fig. 1.

H represents the sides of the inclosing hood or case, which are secured to the circular top or crown plate 0 by the truss-rods h, passing through the lugs d of the sides H, as shown in Figs. 1 and 2. The rear end of said case or hood is hinged at Z to the lower end of the upper portion of the feed-spout S, as shown clearly in Figs. 1 and 2. The sides H of the case at the forward lower portion areprovided with the forked ears 6, which are formed integral with said sides, and which, when the case is closed, as shown in Fig. 4, meet with the brackets a of the sides D of the frame carrying the pivoted bolts 0, with nuts r, and are re ceived by the ears 0, as shown in Fig. 4-, and

by tightening said nuts against the upper face of the ears the case may be firmly bound to the frame D.

1' shows a series of screw-threaded bolts or pins, which are passed at intervals through the periphery or flanges N of the wheel V, as shown clearly in Figs. 2 and 3. Said bolts are to be adjusted so as to clear the inner face of the crown-plate G of the case, and when the machine is in operation said bolts act as strippers, and remove all particles-such as chips and pieces of barl;which have in machines as heretofore constructed collected in the space between the case and periphery of the wheel, and thus prevent the wheel from binding and producing friction by the clogging of such matter, as stated.

Any suitable form or construction of pin may be used in the periphery of the wheel; but the bolts shown are most preferred, as they maybe readily adjusted to compensate for wear and to keep them flush with the inner face of the crown-plate of the case, so as to effectually remove all particles that might tend to lodge.

The object of providing the base-frame with the removable end E is to enable the cuttingwheel \V to be readily removed from its bearings to inspect or repair the same by simply removing the end E, as shown by dotted lines in Fig. 1, when the wheel may be rolled out of the frame, the ease or hood being previously raised, as shown in Fig. I.

The essential features of my invention consist in the employment of suitable stripping pins or bolts, which are located. at intervals in the periphery of the wheel, and in the construction, as described, of the supporting frame or case, whereby access to the bearing or wearing parts for inspection or repairs may be had at will, and to enable the wheel to be readily removed from its frame when desired without the aid of hoisting devices, which has heretofore required considerable time and 1abor to accomplish.

Having thus fully set forth my invention, what I claim as new, and desire to secure by Letters Patent, is-

1. In an organized wood-cutting machine, the combination of the cutting-wheel, the supporting-frame having the detachable section at one end,and the hood hinged to the feed-spout, its free end adapted to swing" upward and from the detachable section of the supporting-frame, as and for the purposes specified.

2. In a wood-cutting machine, the combination ofthe supporting-frame, the cutting-wheel having two peripheries, the projecting pins in the peripheries thereof,the feed-spout,the hood hinged to said feed-spout, and having means for locking its free end to the frame when closed, as and for the purposes specified.

3. In a device for the purposes specified, the combination of the supporting-frame having the detachable end, with feedspout at tached to the opposite end of said frame, the cover or hood, hinged as set forth, and the cuttingwvheel having two peripheries, each periphery carrying a series of cleaning-pins, which pins are adjustably mounted therein, as and for the purposes specified.

In testimony whereof I aiiix my signature in presence of two witnesses.

ALEXANDER M. LEMKE.

\Vitnesses:

HERBERT A. Foimns'r, FANNIE Mouse.