US771101A - Cutter-bar. - Google Patents

Description

4 0 9 1 7 2 T P E S D E/ T N E T A P.

R A LB 1 R T n C APPLIOATIOH FILED AUG. 22, 1903.

N0 MODEL.

( uuanfoz Patented September 27, 1904.

FREDERICK E. SILOR, MUSE, VIRGINIA.

CUTTER-BAR.

SPECIFICATION forming part of Letters Patent No. 771,101, dated September 27, 1904. Application filed August 22, 1903. Serial No. 170,442. (No model.)

To all whom it floaty concern:

Be it known that I, FREDERICK E. SILoR, a citizen of the United States, residing at Muse, in the county of Augusta and State of Virginia, have invented a new and useful Cutter-Bar, of which the following is a specification.

This invention relates generally to cutterbars, and more particularly to the improved means for connecting cutting-knives to the bar proper, the object being to provide an exceedingly cheap, simple, and efficient fastening means by which the cutting-knives can be quickly and easily securely fastened to the bar and also quickly and easily disconnected when desired; and with these objects in view the invention consists in the novel features of construction hereinafter fully described, and pointed out in the claims.

In the drawings forming part of this specification, Figure 1 is a perspective view showing a portion of a cutter-bar constructed in accordance with my invention. Fig. 2 is a top plan view of the same, partly in section. Fig. 3 is a transverse sectional View showing the cutting-blade attached to the bar. Fig. 4 is a similar view showing the cutting-blade in the act of being attached. Figs. 5 and 6 are detail views of the detaching-tools.

In carrying out my invention I employ a bar A, having T-shaped studs B arranged upon the top side thereof at regular intervals, and between each pair of studs the upper face of the bar is also provided with a wedge-shaped lug C, the rear end being perpendicular to the top or upper face of the bar, While the forward end of said lug is flush with and terminates in the front end of the bar. The rear end of the wedge-shaped lug is a short distance forward of the rear side of the bar, and the top face or side of the said lug is the inclined face.

D indicates the cutting-blades, which are cut away on opposite sides adjacent their rear ends, as shown at D, thereby providing laterally-extending shoulders D the reduced portion D of the blade being of a width to fit snugly between the shanks of the T-shaped studs, the heads of said studs overlapping the edges of each adjacent pair of blades, as most clearly shown in Fig. 1. It will be noted that the shoulders D contact with each other, and thereby produce a practically rigid unbroken blade from one end of the cutter-bar to the other. The reduced portion D of the cuttingblade has a rectang ular-shaped opening E produced therein and which is adapted to be engaged by the wedge-shaped lug or projection C of the bar A, thereby securely locking the blade to the bar, it being understood that the blade will yield sufficiently at the center as the reduced portion is forced between the studs to permit the extreme rear end of the said cutting-blade to ride over the wedgeshaped lug, and the moment the rear end of the opening E is reached the rear end of the lug will engage said rear side of the opening and the bar and blade will be securely fastened together.

For the purpose of disengaging the blade from the bar I provide a tool comprising a bifurcated shank F, having a handle F, the forward ends of the bifurcated shank being beveled, as shown at F and by forcing the beveled ends of the shank in the rear end of the blade so as to straddle the lug C the central portion of the blade can be elevated sufficiently to disengage it from the said lug.

It will thus be seen that I provide an exceedingly cheap, simple, and efficient means for quickly and easily connecting the cutterbar and blades.

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

1. The combination with a bar having a series of wedge-shaped lugs arranged upon its upper surface and extending from the front edge of the bar to a short distance past the center, the rear ends of the lugs being perpendicular to the top of the bar, of the blades each having an opening adjacent its rear end that is adapted to engage one of the wedgeshaped lugs upon the bar, as set forth.

2. The combination with a bar having a plurality of T-shaped studs and a wedge-shaped lug between each pair of studs, the rear face of the lug being perpendicular to the top face of the bar, the forward end of the wedgeshaped lug being flush with the front of the opening therein adjacent the rear end for enbar, said lug terminating a short distance forgagement with the lug upon the bar, as set ward of the rear side of the bar, the blades forth.

being cut away upon opposite sides adjacent FREDERICK E. SILOR. their rear ends to form laterally-projecting Witnesses: shoulders which engage the front face of the J. N. MGFARLAND,

studs, each blade having a rectangular-shaped R. FRANK LAREW.

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