US847845A - Sawing-machine. - Google Patents

Description

u PATBNTBD MAR. 19. 1907.

'E'. G..S*TORRS. SAWING MACHINE. APPLIoATIoN l' 'LED MAY 1.1905.

Fl c. SAWING APPLICATION FILED MAY 1.1905.

STORES.

MACHINE.

PATENTED MAR. 19, 1907,

2 BEEETB-SHEET 2.

g: l. l. x l: g. n. l: l: g. l

UNITED STATES AFNT GFFE.

sAwINe-MACHINE.

Specification of Letters Patent.

Patented March 19, 1907.

Application filed May lI 1905. Serial No. 258,253.

Be it known that I, FRED C. SToRRs, a citizen orn the United States, residing at Chicago, county of Cook, and State of illinois, have invented certain new and useful Improvements in Sawing-Machines, of which the following is a full, clear, and exact specification.

My invention relates to that type of sawing-machines in which the saw is pivotally mounted on a standard adapted to be clamped to the log, while the saw is free to swing; and the invention has for one of its objects to provide the saw with improved means for causing it to feed automatically in either a vertical or a horizontal position.

Another object of the invention is to so construct and improve the machine that it may be readily folded into a compact form for transportation; and a still further object of the invention is to make the saw-frame adjustable, so that it may not only be folded,

but may be utilized for holding blades of different lengths.

With a view to the attainment of these ends and the accomplishment of certain other objects which will hereinafter appear the invention consists in the features of novelty which will now be described with reference to the accompanying drawings and more particularly pointed out in the claims.

In the said drawings, Figure 1 is a side elevation of my improved sawing-machine, showing the same applied to a log. Fig. 2 is an enlarged'detail plan view of the feedingnut and mechanism hereinafter described. Fig. 3 is a side elevation of the machine, and Fig. 4 is a vertical section taken transversely of the saw-blade. Fig. 5 Ais a perspective view of the swinging cross-head or lever.

1 is -the saw-blade, which is preferably curved on the arc of the circle in which the blade swings or reciprocates, and it is detachably secured by pins or bolts 2 in the lower ends of two arms 3 4, which are pivoted adjacent to each other by their upper ends to a swinging cross-head or lever 5, which latter is provided with ears or lugs 6, the centers of which form the center of the arc or,

radius upon which the saw-blade 1 is curved and swings, and said lugs or ears serve as a pivotal support for the saw-frame thus constituted. Arranged between the arms 3 4 are two toggles 7 8, which are hinged or pivoted together at 9, while one of them is hinged at 10 to the arm 3, and the other one is pivoted at 11 to the arm 4. The toggle 8 is provided near its inner end with an eye 12, to which is secured the upper end of a rod 13, connected at its lower end to a turnbuckle 14, which is screw-threaded on the upper end of a rod 15, secured at its lower end by an eye 16 to the arm 3, whereby the proper manipulation 'of the turnbuckle 4 will tighten or loosen the saw-blade, as desired, or will adjust the arms 3 4 to adapt them for blades of various lengths.

The lugs or ears 6 of the cross-head or lever 5 are pivoted by a pin 17 to an arm 18, which latter depends from a collar 19, and this collar has swivel connection 2() with a nut 21, composed of two members hinged together,

as shown at 22, Fig. 2, and provided with a` dog or latch 23 for holding them together. This nut 21 is screw-threaded on a screw 24 and is provided around its upper edge with ratchet-teeth 25, with which engages a pawl 26, mounted on the upper end of an arm 27, attached to the side of the cross-head or lever 5, so that as the saw frame or arms 3 4 are oscillated on the pivots 17 the pawl 26 will be caused to engage the teeth 25 and rotate the nut 21, thus feeding the latter downwardly on the screw 24 and causing the saw-blade to feed into the log. The screw 24 at its upper and lower ends is mounted upon a main standard 28 by means of suitable brackets 29, so as to be iixed with relation to the sawframe and the nut. The lower end of the standard is formed with a foot 3Q, which is laterally extended on one side of the standard and provided with spurs 31, adapted to be driven into the log, while the other side or standard may have a guide-block 32, against which the saw-blade runs when being started into the log.

At or near the upper end of the standard on both sides are vertical series of holes or sockets 33 for the insertion of hooks or lugs 34, formed on the upper ends of the guyrods. One of these rods, the one shown at 35, may be a plain rod with a spur 36 at its lower end adapted to be driven into thelog, while the other one is composed of two sections 37 38, connected together by turnbuckle 39, the lower one having a spur 40 at its lower end adapted to be driven into the log, so that by tightening the turnbuckle 39 the standard 28 may be rigidly clamped to the log in either a vertical or a horizontal position, and in either position the nut and screw will serve to feed the saw to the limit of its maximum cutting depth, and when that depth is reached it may IOO IIO

be retracted and the nut moved to the upper` l having their inner ends arranged contiguous end of the screw by raising the clasp 23 and sliding the frame and collar 21 upwardly or outwardly.

When desired, the machine may be folded together in knocked-down form by removing one of the pins or bolts 2 and loh'iing up the blade l with the arms e the pin ll having been previously withdrawn, and one end of the turnbuclle le detached from the teggles 7 8, allowing them to fold up lengtlnvise with the arm 3, whereby all parts, ine-lm .g the guy-rods, will arrange themselves longitudinally oi" the main standard.

`When the machine is to be nsed in a herizontal position, it majT be supported at ene end of the standard 2S by an adjustable snpport composed of telescopic members 28a 28h, secured to standard 28 by hinge 2SC, and having a set-screw 28d for binding them together.

Having thus described my invention, what I claim as new therein, and desire to secure by Letters Patent, is-

l. In a sawing-machine the combination ol a saw-blade, a saw-frame comprising arms secured at their lower ends te the blade and pivotally connected together at their inner ends, toggle-arms secured to one of the iirst arms and removably engaging the other arm for connecting the iirst said arms together, means for operating said toggle-arms te move the first said arms toward and from each other, a standard, and means pivetally supporting said saw-frame upon the standard.

2. In a sawing-machine the combination of a standard, asaw-frame comprising two arms to each other and pivotally supported upon the standard, a sa\v-blade removably seenred f to the outer ends of said arms, and a crossbrace removably secured between said arms, whereby the said machine may be folded up.

3. In a sawing-maehine they combination of a standard, a .Jaav-'lramo comprising two arms having their inner ends arranged eolitigncus to eaeh other and pivotally supported upon the s iandard, a saw-blade removably secured to the outer ends el" said arms, a. hinged(ross-brace, one end ol` which is pivot ed to ene el the arms, the other end removably engaging the oth( arm, and adjiis able means engaging one eil" ldie seelions ol the eross-bra:ey and the adjacent arm, l'or varying the position. of the arms.

il. ln a sawing-maehine the eombinaiion of a standard, a smv-iframe comprising t\\'o arms having their inner ends arranged rontigueus to each other and pivoially supported upon the standard, a saw-blade removably secured to the enter ends oiz said arms, a hir ed cress-brare, one end of whieh is piveted to one el" the arms, Jihe other end removably engaging the otlze' arm, a rod pivolalljv connected to one section el" ille brare, a second rod pivoled to the adja ent arm and a tnrnbnclile connecting the lree ends elt the rods for varying the position olI the brave members to adjust th arms.

litnesses Fizmfcis W. lloriiiNs, A. M. Unna.

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