US642502A - Wood-sawing machine. - Google Patents

Description

No. 642,502. Patented Jan. 30, I900. M. R. SPENCER & D. W. NEAL.

WOOD SAWING MACHINE (Application filed May 24. 1899. (No Mudal.) 2 Sheets-Sheet l.

WITNESSES Pnotauma. WASHINGTON. q c.

Painted Jan; 30, I900.

M. B. SPENCER &- D. W. NEAL.

(000 SAWING MACHINE.

(Application flied m 24, 1899.3

2 Sheets-Sheet 2 !No Model.)

WITNESSES UNITED STATES PATENT OFFIC MILTON RALPH SPENCER AND DANIEL \VILLIAM NEAL, OF SISSON, CALIFORNIA.

wooo-sAwmc MACHINE.

SPECIFICATION forming part of Letters Patent No. 642,502, dated January 30, 1900.

Application filed May 24,1899. Serial No. 718,045. (No model.) I

T0 at whom it may concern:

Be it known that we, MILTON RALPH SPEN- GER and DANIEL WILLIAM NEAL, of Sisson, in the county of Siskiyou and State of California, have invented a new and Improved hVood-Sawing Machine, of which the following is a full, clear, and exact description.

This invention relates to machines for sawing Wood, and it is particularly adapted for sawing felled timber into suitable lengths for railroad purposes; but obviously it may be used in crosscut-sawing for any purpose.

The object is to provide a machine of this character that may be easily moved from place to place and by means of which one man can saw a large amount of timber in a given length of time with comparatively little exertion.

We will describe a wood-sawing machine embodying our invention, and then point out the novel features in the appended claim.

Reference is to be had to the accompanying drawings, forming a part of this specification, in which similar characters of reference indicate corresponding parts in all the figures.

Figure 1 is a side elevation of a sawing-ma chine embodying our invent-ion. Fig. 2 is a side elevation opposite to that of Fig. 1. Fig. 3 is a top plan view. Fig. 4 is a vertical section on the line 4 4 of Fig. 1, and Fig. 5 is a section on the line 5 5 of Fig. 3.

The machine comprises a base-beam 1, having legs 2 at one end, which may be moved to any desired angle relatively to the base-beam 1, so as to raise or lower the same, depending upon the nature of the ground or the thickn ess of the log operated upon. As here shown, the legs 2 have swinging connection with the base-beam by means of a bolt 3, connected to the legs and passing through an opening in the beam, and they may be held as adjusted by means of hook-rods 4:, designed to be engaged in one of a series of eyes 5 on the sides of the base-beam. At the opposite end the base-beam is provided with teeth 6, designed to be forced into a log, and at this end is a swinging clutch-lever 7, having a tooth 8, designed to engage in the log below the plane of the teeth 6. These devices will hold the 1 log from moving relatively to the base-beam.

The lever 7 may be held as adjusted by a spring-dog engagement with a sector-rack 9 on the base-beam.

Extended upward from the base-beam 1 intermediate of its ends are standards 10 11, and having its shaft-bearings in these standards 10 11 is a driving-gear 12, having interior and exterior gear-teeth. The interior gear-teeth are engaged by a driving-pinion 13, having its shaft extended through a bearing in the standard 10, and adjustably connected to the outer end of the shaft is a crank '14. The object in making the crank ad justable relatively to the shaft is to adapt it for use by different men. A shaft 14 has boarings through the upper portion of the standards 10 11, and on this shaft 14 is a pinion 15, which meshes with the exterior teeth of the gear 12, and adj ustably connected to this shaft li is a crank 16, from which a link 17 extends to a connection with the upper end of a rock-lever 18, the said rock-lever having its bearings in a block secured to the base beam 1. Pivotally connected to the lower end of this rock-lever is a pitman 19, having a coupling 20 at its forward end, to which the saw 21 is designed to be connected by bolts or otherwise.

As the saw moves across the log it is moved downward with a yielding pressure by means of a spring-rod 22, connected at one end to the standard 11, and having fingers 23 at its free end to engage at opposite sides of the saw-blade. The tension of the spring-rod 22 may be adjusted by moving it into engagement with any one of the teeth on a rack 24, secured to thebase-beam. It may be held wholly out of connection with the saw-blade or in an upward position while the machine is being transported from place to place by means of a latch 25, pivoted to the base-beam and having a hook end to engage underneath the end of the spring-rod 22.

The standards 10 and 11 are here shown as secured to the base-beam by means of bolts, and the upper portions are held rigidly from swaying by means of brace-bars 26, extended from the standards to the base-beam.

In operation after placing the machine in position relatively to a log or timber and plac ing the saw-teeth upon the top of the log or timber by turning the crank 14- it is obvious that a reciprocating motion will be imparted to the saw, and the gearing is so proportioned that a single rotation of the gear 12 Will impart a great number of reciproeations to the saw. When not in use and While transporting the machine from place to place, the saw may be moved upward and the pitman 19 engaged in a keeper 27 on the standard 10, as indicated in Fig. 1.

Having thus described our invention, We claim as new and desire to secure by Letters Patent- A sawing-machine,comprisinga base-beam, means for rigidly connecting one end of said base-beam with a log or timber, legs mounted to swing on the opposite end of said base beam, hook-rods having connection with said legs, eyes on the base-beam for engaging With said hook-rods, a driving-gear supported on the base-beam, a rock-lever mounted on the base beam and having connection with a crank of the driving-gear, a pitman connected to the lower end of the rock-lever, and a saw connected to the free end of the pitman substantially as specified.

Witnesses:

(J. 0. SMITH, J. (3. JOHNSON.

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