Improvement in sa wing-machine
US 97958 A
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Description (OCR text may contain errors)
OF RVIOHLAND, INDIAN A', ASSIGNOR-TO HIMSELF AND JAOOBFISHEK SAMEPLAOE.
Letters Patent N ,958, lla-ted December 14, 1869; Vantedatcll December 3, 1869.
IMPROVEMNT IN SArVllN'G--MACHINE.`
The Schedule referred to in these Letters Patent and making paxt. of the same To all 'who-m `Muay concern:
Be it known that I, ARCHIBALD Innnv, of Richland, in thecounty of Rush, and in the State of Indi ana, have invented `certain new and useful Improvements in sawing-Machines; and do hereby-r declare that the following is a full, clear, and exact description `tl1ereof,reference heilig had to the accompanying drawings, and to thevletters of reference marked thereon.
The object of my invention is to provide a saw-mill that shall b'e `light land portable `in its construction, `the mechanism of which shall be s'o arranged as "to give greater strength to themovemcnts of thesaw, and yet require a less amount of steam to run it.
` Figure 1 represents a side elevation of my machine.
Figure 2 is a section of the same.
Figure 3 is an end view of the saw, showing the manner in which it is attached to `the frame.
Letter A represents the frame of my machine, which is provided, upon its top, with a track, B, upon'which the carriage O', which brings the lumber up against the Saw, is moved.
Attached to the driving-shaft is the wheel D, pivoted to which is arm E.
One end of this arm is attached to one side of the wheel D, while the other is secured to the rocking lever F, 'so that when the'wheel is once set in motion,
4the arm communicates it lto the lever.
rlhis lever is balanced or hung upon the shaft G, and is of a triangular or harp-shape, as seen'in iig. 2, having one of its corners attached to the lower end of the saw H, by means of aplate or clamp, so that when the lever is made `to rock, it imparts a reciprocating motion to the blade. g
Both ends of this saw are provided with clasps I,
attached to the same side of the blade, which Vmove up and down in slides, as seen in iig. 3. 'By having these clasp'sand slides on the same side of -the saw, the blade cannot he made to vibrate', and is'nnic-li more regular and even in its stroke.'
` Letter J represents an upright beam, `one of which is on each side of the frame, and which have a crossheam, extending from their tops, across from one side to the other.. i i
Extending outward `from this cross-beam is the head-block, to which the upper end of the saw'is attached. v
Upon the outer end ot' the shaft G, upon which the rocking lever is hung, there placed a small crank,
K, for the purpose of operating the lever L, which operates `the feed-mechanism.
This lever is pivoted to the side of the upright beam J, and has its upper end slotted to a considerable distance down, so that the arm M, which is secured to it,
. can bemoved nearer to or further from thc centre of motion, whereby the `length 4of its stroke is made longer or shorter, as the case may need. 4
Letter M is the arm, one end of which is attachedto thelever L, as already described, while the other one is furnished with a clamp, N, sufficiently wide and large to clasp the. top of the iwheel O, and by means of which the said wheel is opmated, so as to move the 'carriage (l toward the saw.
In order to make the clamp N grasp the wheel, and hold it in its place, the spring l has been provided, one cnd of which is attached to the beam J.
Upon thel same shaft as the wheel D, there` is a second wheel or pulley, as seen in dotted lines in tig. 2, over which a belt, 1t, is passed, so as to communi cate motion to the wheel S.
1 is a friction-wheel, attaclu-rdto the same shaft asv the wheel S, and is-used to reverse the mot-ion ofthe wheel O, so-as to move the carriage back from the saw. The outer part of the -franie upon which this wheel 'l has its bearings, is only pivoted on to the main part, so that it can be moved up and down, in order to be brought in contact with the periphery oi' the wheel O.
One end of this movable bearing U is attached to the rod Y, which passes up to the top of the frame, where it is secured to the lever W, by which this wheel T is brought into contact with the one O.
The carriage Gis composed (if/two parts, which are' united. or formed together by means of the` ybar or beam' X, as seen in lig. 2, the lower part of which is provided with a toothedrack, which is operated by vthe cog-wheel Y. This cog-wheel is attached to the .same shaft as thel wheel O, and` is operated by it.
'lo the side of, the beam J is secured a roller, la, over which a cord passes, so that the arm M can he lowered and raised. y
On the inside of the beam J is placed the spring u, as shown in dottedl lines in iig. l1, the lower end of which is secured to .the clamp N by means of the cord c, so that after the arm M has moved the clamp to its full length,- the spring (l. draws it back so as to take a new hold'.
livoted to the cross-beam extending across the top of theframe, is the lever (I, to the end of which are atv tached two cords, e and j'.
In order to prevent the wheel from turning backward,`after it has been propelled forward by the arm- M, the brake g has been provided, which is hinged to the beam J, and is attached to the cord j',
The mode of operating my machine is as follows:
The motive-power is applied to the shaft 'upon which the wheel 1) is placed, and the motion being communicated tothe rocking lever l", the saw is'vset. in motion. `The crank li, revolving, causes the lever L to oscillatc, aml this communicating motion to thc arm M, theivhccl O is slowly propelled around, and this' causing the cog-wheel Y to revolve, which works in the toothed rack of theI carriage, the object to be sawed isthus brought up to the saw.
As soon as the sawing-operation is completed, and
. wheel T so as to come in contact with the wheel O,
when the motion is at. once reversed, and the carriage moved back.
Having thus described my invention, R
That- I claim, and desire to secure b v Letters Iatent is- ,v
1. The lever L, slotted or open at each end, in combina-tion with the crank K, arm M, and clamp N, when used in the manner and for the purpose as specified.
2. The forked lever L, crank K, arm M, and clamp N, in combination with the rockingr lever F, shaft G,
'crank K, pitman E, and wheel D, all constructed and opemt-ing substantially as set forth. f--3. Thearm M, so arranged and constructed as to be moved nearer -to and further from the centre of and for the purpose as set forth.
5. The saw H, connected at the top and bottom t0 the slides I I on the same side, and operated by the rock-ing lever Il, all substantially as set forth.
(5. rIheeombimition of the lever L, arm M, clamp N, springs (L and I), cords c, e, and f, lever al, and bra-ke g, all construct-ed and arranged to operate substantially in the manner and for the purposes herein set forth.
' In testimony that I claim the foregoing, I have hereunto set my hand, this 5th day of' March, 1869.
ARCHIBALD PERRY. Witnesses:
JAMES LAUGHMN, N. B. DELAMATER.