US404753A - Hand-power saw - Google Patents

Description

(No Model.)

M. VAUGHN. HAND POWER. SAW,

No. 404,753. Patented June 4, 1889.

WITNESSES n PHERS. mmnmm". Wuhmglnn n c UNITED STATES PATENT QFFICEQ JAMES MARIAN VAUGHN, OF \VATER VALLEY, KENTUCKY.

- HAN D-POWER SAW.

SPECIFICATION forming part of Letters Patent No. 404,753, dated June 4, 1889.

Application filed September 24, 1888. Serial No. 286,218. (No model.)

To all whom it may concern:

Be it known that I, J AMES MARIAN VAUGHN, a citizen of the United States, and a resident of Water Valley, in the county of Graves and State of Kentucky, have invented certain new and useful Improvements in Hand Power Saws; and I do hereby declare that the following is a full, clear, and exact description of the invention, which will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, which form a part of this specification.

This invention relates to hand-power saws.

The object is to produce a saw which shall be of such construction that one man will be enabled to do the work of two or more with perfect ease and with less labor than would be required with saws of ordinary construction; furthermore, to produce a saw which shall be simple of construction, efficient and durable in use, and comparatively inexpensive of production.

With these objects in view the invention consists in the novel construction and combination of parts of a hand-power saw, as will be hereinafter fully described in the specification, illustrated in the drawings, andpointed out in the claims.

In the accompanying drawings, forming part of this specification, and in which like letters of reference indicate corresponding parts, I have illustrated one form of device embodying my invention, although the same may be carried into eifect in many other ways without in the least departing from the spirit of the same, and in these drawings- Figure 1 is a perspective view of the device, showing the saw-blade resting on a log, and the various parts of the operating mechanism. Fig. 2 is a side elevation, a part of the frame-work being removed, showing mechanism for operating the saw; and Fig. 3 is a detail View of the hook for keeping the saw elevated when not in use.

Referring to the drawings, A designates the supporting-frame of the device, consisting of two vertical uprights a and an outwarclextending horizontal arm a, rigidly secured within the two uprights.

B designates a base to which the uprights are secured, the said base extending to any distance desired on each side of the uprights, in order to give the frame a solid foundation.

Extending from the said base to the horizontal.

arm are two oblique braces Z), designedas-an additional support for the outward-extendin g arm a, to the outer end of which is secured a hook I), which is movably pivoted to the said arm, and is designed to engage the log when the device is used.

O designates an arm moving between the space formed between the uprights a, the outer end of which has secured to it a saw D, which may be of any, desired style usually employed for either crosscut or rip saws. At a point above the arm 0 and loosely pivoted between the uprights is a lever E, to the inner end of which is secured adownward-extending arm F, provided at its lower end with a hinge, one leaf being attached to the arm F and the other one to the arm O,whereby,when the lever E is moved up and down a reciproeating motion is imparted to the saw-blade.

G designates the lever forimparting pressure to the saw, the outer end 9 being hinged or pivoted to a cross-beam g, which extends down and is provided at its lower end with a slot 9 in which the saw moves, the said slot being designed as a guide for the blade to prevent the same from turning to one side or buckling when it first starts to out. At a point preferably near the center of this lever is a longitudinal opening 9 through which extends a bar H, the lower end engaging the spring-actuated arm I, the upper end of which is provided with a spring 11, secured to the under side of the arm a, and its lower end being provided with a movable pivot t", which 'reciprocates within a slot cl in the top of the saw-blade, the object of this slot being to admit of the saw-blade being raised after the log has been cut through and brought up within the slot 9 in the arm g, at which point it may be held by a hook J, which engages the openings h in the bar II.

In operation the device is first placed on the ground with the saw-blade resting upon the leg, as shown in Fig. 1. The hooks'K on the uprights a are then driven into the ground,

which thus secures the device in place at one end, while the hook I) at the other end is driven into the log, thus securely anchoring the device in place, the curved arm 1) serving as a gage by which to set the saw at any desired point on the log. The hook J is then thrown out of contact with the openings, which thus allows the saw to drop on the log, being guided at its end by means of the slot 1 as before described. The lever E is then operated in the manner described, causing the saw-blade to reciprocate and cut the log. As the saw enters into the log, and as the lever G is brought down as far as possible, it is then raised and the pin L inserted through the opening g" in the lever G, thus giving the opera-tor a fresh purchase, and so on until the log has been cut through. In order to additionally brace the device and cause the lever E to move in a straight line at all times, two guides M are secured to the uprights (1, against which the said arm works.

It will be seen by the foregoing description, taken in connection with the drawings, that while this device is exceedingly simple of construction, it will be found highly efficient and durable in use; that it will prevent any danger of buckling or breaking of the saw when first starting to saw a log, and that one man may operate both the pressure-arm and the arm for reciprocating the saw with facility and case.

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

1. The combinatiomwith the frame having a lever pivoted thereto for operating the saw, of the arm I, the spring at its upper end connectin g it with the arm a, and its lower end being provided with a movable pivot, and the saw provided with the slot (Z in the top of its blade, in which the movable pivot at the lower end of said arm I operates to permit the saw to be both reciprocated and raised when necessary, substantially as specified.

2. The combination, with the supportingframe having the arm a, and the slotted sawblade connected to the movable arm 0, of the bar II, passing through a slot in the arm a, the arm I, connected to the lower end of the bar H, and connected to the arm a by the curved spring 2' and to the slotted saw-blade by the movable pivot i, and the lever G, for imparting pressure to the saw, substantially as specified.

3. In a sawing-machine, the combination, with the arm a and the lever G, having hook J secured thereto and adapted to engage the openings 71. in thebarlI, of the bar I, connected with the arm a and with the slotted sawblade, and connected also with the perforated bar II above the arm a, substantially as specified.

4. In a sawing-machine, the combination, with the supporting-frame provided with the arm a, and the movable arm 0, provided with the slotted saw-blade, of the connectingarm having the spring t' at its upper end and the pivot i at its lower end, the guides M, and the lever E, provided at its inner end with the (lownwardly-extending arm F, having at its lower end a hinge, one leaf being attached to the arm F and the other leaf to the arm (J, whereby, when the lever E is moved up and down, a reciprocating motion is imparted to the saw-blade, substantially as specified.

In testimony that I claim the foregoing as my own I have hereunto affixed my signature in presence of two witnesses.

JAMES MARIAN VAUGHN.

\Vitn esscs:

JEssE M. SHUBERT, \V. A. MIDYETT.

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