US1100016A - Sawing-machine. - Google Patents

Description

J. C. HOLSI'.

SAWING MACHINE.

APPLIoA'rIoN FILED sBPT.1o, 1913.

w Nw N m -m LI o, H H

J. C. HULST. SAWING MACHINE.

APPLICATION FILED 51:21.10, 191s.

2 SHEETS-SHEET 2.

f: I. E.-

w T /l 25 ,e wibneooeo @WM L @WM JOHN C. HOLST, 0F BROOKLYN, NEW YORK.

sA'wING-MACHINE.

Specification of Letters Patent.

Patented June 16, 1914.

Application led September 10, 1913. Serial No. 789,139.'

T0 all whom it may concern.'

Be it known that I, JOHN C. HoLs'r, a citizen of the United States, residing at Brooklyn, in the county of Kings and State of New York, have invented certain new and useful Improvements in Sawing-Machines; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

This invention comprehends improvements in sawing machines and relates more particularly to those which aredesigned t0 be operated by hand.

The primary object of the invention is t0 provide a wood sawing machine of this type which shall require the expenditure of a minimum amount of power to operate, which shall be of extremely simple construction, strong and durable.

Another object of the invention is 'to provide novel means for clamping a log or other article to be sawed, tightly in proper position.

With these and other objects in view as will become more apparent as the description proceeds, the invention consists in certain novel features of construction, combination and arrangement of parts as will be hereinafter more fully described and claimed.

For a'complete understanding of my invention, reference is to be had to the fol'- lowing description and accompanying drawings, in which- Figure 1 is a side elevation of my improved sawing machine, shown partly broken away and partly in section, Fig. 2 is a vertical sectional view taken on the plane of line 2 2 of Fig. 1, Fig. 3 is a fragmentary view showing one of the standards and a portion of the clamping means, Fig. 4 is a fragmentary detail view showing a portion of one of t-he log supports and the clamping member secured thereto, and Fig. 5 is a detail view showing the connection between the saw and connecting bar.

In the preferred embodiment of my invention, I provide a base comprising the spaced sections 1 and 2 connected by means of the bars 3. It will be understood that I have merely shown the preferred. construction of the base and that any other form of a suitable nature may be used. A pair of side plates 4 and 5 are rigidly secured to the top of the base section 1 and lie in vertical planes. A cross bar 6 having trunnions 7 formed upon its ends is journaled between the side plates 4 and 5 adjacent to the upper edges thereof, as shown in Fig. 1. A triangular frame, including the arms 8 and 9 and the brace bar 10, is movable with the cross bar 6. The frame is connected to the cross bar by having the frame 8 extended through a slot formed in said bar. A weight 11 is supported upon the arm 9 adjacent tol its free end and a connecting vbar 12 is secured to the lower end of the arm 8. The connecting bar passes through a slot 13 formed in the arm 8 and maybe adjustably `secured therein by means of a bolt 14 which base section 2, passing over the latter, asv

shown in Fig. 1. The beam 20 is stationary, whereas ,the beam 21 may be moved longitudinally. This last mentioned beam is connected at its forward end to a depending arm 22 carried by a rotatable cross bar 23. The beam 21 extends through a slot formed in the lower end of the arm 22 and is held therein by means of a pin 24. The beam 21 is formed adjacent to its free end with a series of vertical slots 25 in any one of which a clamp 26 may be secured by means of a set screw 27, said clamp being for the purpose of holding the wood to be sawed against the uprights 17 and 18. The beam 21 is guided in its movement across the base section 2 by means of the blocks 28 and 29, one beam secured to the base and the other to the upright 17.

The beam 21 may be shifted longitudinally by means of a lever 30 secured at one end in a socket 81 carried by the cross bar 28 and extending at its other end across the upright 17. A series of pins 32 are carried by the uprights 17 to form stops for the lever 30. In operation, a log is placed across the beams 2O and 21 and is drawnv tightly against the uprights 17 and 18 by means of the clamp 26. The clamp may be roughly adjusted so as to properly engage the log by placing it within the proper opening 25, and

www..

after this has been done, it may be drawn tightly into engagement with the log by swinging the lever 30 downwardly. When the saw is drawn rearwardly, the weight is swung upwardly, and when the cutting stroke is being made, said weight assists materially in forcing vor drawing the saw through the wood. A stop rod 33 carried by the side plates 4 and 5 limits the downward movement of the weight.

From the foregoing description taken in connection with the accompanying draw* ings, it will be seen that I have provided a very simple wood sawing machine, which requires a minimum amount of power to operate and which includes a novel adjustable clamping mechanism.

While I-have shown and described the preferred embodiment of my invention, it will beunderstood that minor changes in construction, combination and arrangement work to be sawed, one of said supporting beams being longitudinally movable, a

clamp carried by the movable beam and means for moving said beam so as to draw the clamp into engagement with the work to be sawed.

In testimony whereof I afiix my signature in presence of two witnesses.

JOHN C. HOLST.

Vitnesses MYLES MoKEoN, JosEPi-I H. MoKEoN.

Copies of this patent may be obtained for ve cents each, ily-addressing the Commissioner of Patents,

Washington, D. C.

Images