US302181A

US302181A - williams

Info

Publication number: US302181A
Authority: US
Publication date: 1884-07-15
Anticipated expiration: 1901-07-15

Description

2 Sheets-Sheet 1,

(No Model.)

s. 0. WILLIAMS.

UIRGULAR SAWING MACHINE.

Patented July 15, 1884.

(No Model.)

2 Sheets-Sheet 2. S. O. WILLIAMS.

' CIRCULAR SAWING MACHINE. No. 302,181. [a Patented July 15,1884.

I F W i 5 S S 5 6'@ H sv WITNESSES i w. INVENTOR "UNITED STATES PATENT FFlClE SETH C. WILLIAMS, OF BROOKLYN, NEW YORK, ASSIGNOE TO BLAISDELL BROTHERS, OF SAME PLACE.

CIRCULAR SAWING MACHINE.

SPECIFICATION forming part of Letters Patent I50. 302,181, dated July 15, 1 4.

Application filed March 18, 15.194. (.\'0 model.)

To all whom it may concern Be it known that I, SETH C. WILLIAMS, a citizen of the United States, residing in the city of Brooklyn, county of Kings, and State of New York, have invented certain new and useful Improvements in SawingMachines for Kindling-Wood, fully described and represented in the following specification and the accompanying drawings, forming a part of the [0 same.

The present improvements relate to that class of sawing-machines more especially adapted to the sawing of slabs and other wood not available as timber into small pieces suitable for use as kindlings.

Theimprovements eonsistin amachine co1nposed of a gang of saws rapidly rotated in one direction and a work-carrier slowly rotated in an opposite direction,which work-earrier is constructed with stepped supports or holders and provided with means for adjusting its re lation to the gang of saws, and in the combination, with such a machine, of spring-bars for preventing the sawed material from clogging 2 the saws, and of a perforated delivery'chute.

That these improvements may be readily understood, the machine herein shown as practically embodying them will be minutely described.

The drawings representing it illustrate by Figure 1 a right-hand side elevation; by Fig. 2, a left'hand side elevation, partly in section on the line 10 of Fig. 3; by Fig. 3, a plan or top view; by Fig. 4, aseetionalelevation on the line 00 of Fig. 3; by Fig. 5, asectional detail on the line 7 of Fig. 3, and by Fig. 6 a detail of the pin for locking an adjusting-lever.

The essential elements of the machine are a gang of circular saws, S, mounted fixedly upon a revolving shaft, 50, a rotating carrier hav.

ing stepped supports 9, and means for adjusting it to and from the saws, and a set of stripping spring-bars, 8. The saws Sare separated and held an appropriate distance apart 5 by means of collars 6, and are secured by a screw-nut, 11. The tightening of this nut 11 may be depended upon to hold the saws from slipping on the shaft or the latter may be polygonal, and the eye of each saw be appro' gopriately shaped to fit onto the same.

The rotating carrier is composed of a number of sections, 12, strung upon a shaft, 60, and separated such a distance apart by their; half-hubs as to provide an opening between contiguous sections, within which the saws S may freely run. These sections 12 are each provided with stepped supports 9-say eight, more or less-and the sections are held in place with-their stepped supports 9 in horizontal alignment by means of the pressure of a screwnut, 13, and may, in addition thereto, have polygonal eyes fitting a correspondinglyshaped shaft, if desired. This carrier has its shaft 60 mounted in bearings that are secured to a sliding carriage composed of the slides V 6 5 WV and a cross-bar, X. The slides each have a guide, 16, that runs in slots cut into the side frames Y. (See Fig. 5.) The movements of adjustment of the carriage are effected by means of bell-crank levers 45, that are pivoted to the front cross-frame, A,and joined together by a link, 46, so as to be simultaneously moved by ahandle, M. Their adjusted position may be fixed by a' pin, 20, (see Figs. 3 and 6,) embracing one beltcrank, 45, and engaging in holes in the cross-frame A, or in any other common manner.

The stripping springbars 8 are rather stifi' blades of steel, of which thereare a number corresponding to that of the sections 12 of the work-carrier, and these spring-bars depend from a crossbar, 10, that is secured to the uppermost members, I, (one only of which. is shown in Fig. 3,) of the side frames. Said spring-bars extend into the spaces between the saws S and reach below the peripheral line or lowermost path of travel of the saws.

mensions of the saws are decreased by fre- 5 I quent sharpenin The workcarrier is driven at a slow speed relatively to the rapid rotation of thesaws, and in an opposite direction thereto (see arrows,) by means of suitable gearing, that shown beinga toothed wheel, 30, 011 one end of the carrier-shaft 60, and a driving-pinion, 31, the shaft of the latter bearing a large pulley, 32, that is belted to and driven from a small pulley, 33, on a short shaft, 34, that bears a large pulley, 5, in turn driven. from a small pulley, 36, on the shaft 50, that carries the gang of saws.

Beneath the carrier 0 there is an inclined guiding-chute, 80, that is perforated to act as a sieve. Its upper end underlies the said carrier, and the lower and forward end terminates over an elevator, 90, that is constructed to act as a rotating conveyer.

It now being understood that the shaft 50, driven by themain belt-pulley B, is run atan appropriately high rate of speed in one direction to cause the gang of saws to properly operate, and that the shaft 60 is, through the gearing, run at such a relatively slow speed in the opposite direction to allow the stepped supports 9 of the sectional rotating work-carrier to be supplied with the material to be sawed, the operation will be readily apparent. As the said carrier slowly revolves, each set of the stepped supports 9 has a slab or other piece of wood to be sawed rested upon them, and thus, as each set of supports 9 is thus sup plied with a piece of material to be sawed, the same will, as the carrier revolves, be forced into contact with the gang of saws, and as the latter penetrate its body the slab of wood will still be supported and held to the carrier by the stepped supports, and by reason of the extreme rapid motion of the saws, and when wholly detached, the pieces will be prevented from following the saws by the spring-bars 8 until carried out of their range. As each set of stepped supports thus clears the saws and is brought to the under side of the apparatus, the short sawed pieces resting upon them will be dumped, and,-falling upon the chute 80, will be guided downward and be deposited in the elevator 90, to be thereby conveyed to a place of delivery. All of the sawdust produced by the sawing operation and such as adheres to the cut pieces will pass or be sifted through the sieve-like chute 80 and become deposited behind it, being thence removed in any convenient way, as by a blower.

That is claimed is 1. The combination,with a gang of rotating saws, of a rotating work-carrier constructed in sections, adapted to run between the saws, and means for adjusting the relation of said carrier and saws, the same consisting of a sliding carriage for the work-carrier and levers for moving it, substantially as described.

2. A sawing-machine consisting of the combination, with a gang of revolving saws, of a rotating work-carrier composed of stepped sections that protrude between the saws, and a series of springarms arranged between said saws, substantially as described.

3. The combination,with a gang of saws and a rotating stepped worlecarrier, of a perforated guiding-chute supported beneath the saws, substantially as described.

4. The combination,with a gang of saws and a rotating stepped work-carrier, of a perforated guiding-chute supported beneath the saws, and an elevator, 90, in working relation to said chute, substantially as described.

SETH O. \VILLIAMS.

Vitnesses:

GEO. II. GRAHAM, T. H. PALMER.