US393502A

US393502A - Machine

Info

Publication number: US393502A
Authority: US
Publication date: 1888-11-27
Anticipated expiration: 1905-11-27

Description

(No Model.)

' J. B. ELLIS.

SAWING MACHINE.

No. 393,502. Patented Nov. 27, 1888 n. PETERS. MW, Wahinpnn. n. c.

UNITED STATES PATENT Orrrca.

JACOB B. ELLIS, OF IVIARSHFIELD, MISSOURI.

SAWlNG-MACH'INE.

SPECIFICATION forming part of Letters Patent No. 393,502, dated November 27, 1888.

Application filed June 2'7, 1888. Serial No. 278.305.

T0 aZZ whom, it may concern.-

Be it known that 1', JACOB B. ELLIs, a citizen of the United States, residing at Marshfield, in the county of Webster and State of Missouri, have invented new and useful Im' provemeuts in Sawing-Machines,of which the following is a specification.

My invention relates to an improvement in sawing-machines; and it consists in the peculiar construction and combination of devices, that will be more fully set forth hereinafter, and particularly pointed out in the claims.

In the drawings, Figure l is a perspective view of a sawing-machine embodying my improvcments. ing the saw arranged in a horizontal position for felling a standing tree. Fig. 8 is a de tailed view illustrating the pivotal connection between the standard B and bar G, showing the latter in an inclined position, in the act of being swung from a vertical position to a horizontal position.

A represents a cross-bar, to the center of which is hinged the lower end of a standard, B, the said standard being provided with aserics of openings, (7, which are adapted to be engaged by a hook-rod, D, that is attached to the crossbar. From one side of the standard B, near the lower end thereof, projects a stud, F.

F represents a strap or yoke, which is secured to the upper end of standard B, and to which is pivoted one end olan arm, G,thc said arm being provided with a series of openings, ll.

1 represents a board or beam, which has one end bolted or otherwisesecured to the arms G, near the upper end of the latter. Near the outer end of the saidarm l is a vertical guide, 1C, and at the extreme outer end of the said beam I is a vertical keeper, '1], in which is guided a vertically-movable spike, 'M, the same being provided near its upper end, on one side, with. a shoulder or offset, which is engaged by the shorter end of a lever, N.

0 represents an operating-lever, which. is pivoted at its upper end on the inner end of the beam or arm I, and said operating-lever is provided at its upper end with a pair of plates, 1?, which project above the said operating-lever, and are provided with curved slots It.

Fig. 2 is a top plan View show-- (No model.)

S represents an arm or extension,which has its lower end pivoted between the ears P, and is provided with a transverse bolt, which operates in the curved slots R,the said bolt having a clampingnut on one end, whereby the arm S may be secured between the ears when the said arm is extended from the lever O and arranged in line therewith.

T represents a link, which is hinged to the lower end of the arm 0, and secured to the said link is a crosscutsaw, U, of suitable construction, said crosscut-saw being adapted to be guided in the guide or keeper K.

V represents an arm,which is pivoted at its upper end to the beam or arm I, near the rear end of thelatter, and has a pair of plates, V, bolted to opposite sides of its lower end, and projecting therefrom and between the said plates is journaled an antit'riction roller, X, which is provided with a peripheral annular groove adapted to engage the upper edge of the saw.

X represents a leverarm, which is pivoted at one end to the beam or arm I. A spring, Z, has one end secured under the arm Y, and the free end of the said spring is adapted to bear upon the arm V. The said arm Y is provided near its outer end with an opening, A, which is adapted to register with either of a series of openings, 13, with which the beam or arm I. is provided, said openings B being con centric with the pivot ot' the arm Y.

The operation. of my invention is as follows: hen the saw is to be used for cutting a fallen log, the outer end of the beam or arm I is rested on the log, the spike or engaging-pin is driven into the log, and the crossbar A. rests on the grouml, and the standard B is supported in a vertical position on the cross-bar by means of J the hook rod or brace 1). lhe extension or arm S being turned upward to a vertical position, the saw being guided in the guide or loop 1x, and the friction-roller of the springpressed arm V being in engagement with the upper edge of the saw, the latter is caused to rest with its serrated edge on the log, and the operator, by moving the extension S, causes the arm 0 to rock back and forth, and thereby impart reciprocating motion to the saw, causing the latter to cut through the log in the usual manner. The springpressed arm V,

ICO

which has its anti-friction roller bearing on the upper edge of the saw, serves to feed the latter to its Work, and thereby impart maximum efficiency to the saw.

When the machine is to be used for sawing a standing tree, the arm G is turned to a horizontal position and secured by engaging the hook-rod O with one of its openings H, the arm 0 being thereby turned to a horizontal position, so as to incline the beam or arm I and the saw to the same position, the spike or pin at the outer end of the beam or arm I is driven into the standing tree, and the machine is operated as before.

Owing to the fact that the standard B is hinged or pivoted to the cross-bar A, said standard may be always maintained in a vertical position, even though the cross-bar A may be resting on inclined ground, forming a hillside.

A sawingmachine thus constructed isextremely cheap and simple, is strong and dura ble, is easily operated, and thoroughly reliable and efficient in operation.

Having thus described my invention, I claim- 1. The combination, in a sawing-machine, of the crossbar A, standard B, hinged or pivoted thereto and adapted to be secured at any desired angle, the beam or arm I, the lever O, pivoted to said beam or arm, the link T, connecting the saw to said lever, thespring-pressed arm V, bearing on the upper edge of the saw,

and the arm G, hinged to the upper end of the standard 13 and secured to the beam or arm I, substantially as described.

2. The combination, in a sawing-machine, of the cross-bar A, the standard B, hinged or pivoted thereto and adapted to be secured at any desired angle, the arm G, hinged to the upper end of said standard, the beam or arm I, attached to said arm, the lever O, the saw, and the link connecting the same to the lever O, substantially as described.

3. The combination, in a sawing'machine, of the lever O, to which the saw is connected, the arm V, having the grooved roller bearing on the said saw, the lever Y, adjustable vertically, and the spring attached to the said 1ever and bearing on the arm V, for the purpose set forth, substantially as described.

4. The combination, in a sawing-machine, of the standard B, the arm G, hinged to the said standard, the arm I, secured to said arm, the lever O, pivoted to said arm, and the saw connected to said lever, substantially as described.

5. The combination, in a sawing-machine, of the standard, the arm G, hinged thereto, the arm I, secured to arm G and having the guide K, the lever O, pivoted to arm I, the saw connected to the said lever, the lever A, adjustable on arm I, and the spring attached to said lever and having the roller bearing on the