US770006A - Sickle-bar. - Google Patents

Description

PATENTED SEPT. 13, 1904.

s. HAGAR. SIGKLE BAR. APPLICATION IiLED JAN. 19,1904.

N0 MODEL.

1 NFKWRWQR 0 0 15 Patented September 13, 1904.

PATENT OFFICE.

SMITH HAGAR, OF MASSIES MILL, VIRGINIA.

SlCKLE-BAR.

SPECIFICATION forming part of Letters Patent No. 770,006, dated September 13, 1904,

Application filed January 19, 1904. Serial No. 189.664. (No model.)

To all whom it may concern:

Be it known that 1, SMITH HAGAR, a citizen of the United States, residing at Massies Mill, in the county of Nelson and State of Virginia, have invented certain new and useful Improvements in Sickle-Bars, of which the following is a specification.

This invention relates to guard-fingers and finger-bars for harvesters, and particularly to a sickle or cutter bar having certain peculiarities affording advantages over other bars of this class.

The object of the invention is to provide a sickle-bar of such novel and peculiar construction and to form the shank of the sickles or cutters in such manner that the latter may be attached to and released from the bar without puncturing the bar or the shanks by setscrews, bolts, or the like.

A further object of the invention is to provide a special locking-bar, operated in the sickle-bar, to lock the sickles to the sickle-bar and to unlock them, so that one or all of them are free to be removed as desired or as occasion may demand.

In the accompanying drawings, forming part of this application, Figure 1 is a top view ofthe sickle-bar with the sickles locked, showing in dotted lines the locking-bar in unlocked position. Fig. 2 isalongitudinal section taken on the line a a, Fig. 1, of part of the two bars and the sickles in locked position. Fig. 3 is a perspective view of part ofthe sicklebar with the locking-bar removed. Fig. 4 is a detail perspective view of the locking-bar, partly broken away. Fig. 5 is a detail perspective view of one of the sickles. Fig. 6 is a cross-section on the line w m, Fig. 1.

The same numeral references denote the same parts throughout the several views of the drawings.

The sickle-bar 1 has a dovetail longitudinal groove 2, extending from a shoulder 3 to the opposite end of the bar. A series of transverse slots 4, intersected by the said groove, is made through the sickle-bar, and the latter has a gage-mark 5. The sickles 6 have shanks 7, one edge of which is provided with a beveled notch 8 equal in width to the width of the bottom of the groove 2, and the shanks engage the bottom of the said groove, which is flush with the slots 4.

The locking-bar 9 has beveled sides to fit the groove 2, flush with the top of the sicklebar 1, and a series of lugs 10, having beveled sides, depend from the locking-bar into the said groove and between the beveled edges of the notches of the sickle-shanks to lock the latter to the sickle-bar. The locking-bar lugs 10 are separated by spaces 11 of a width equal to the width of the interval between the slots 4, so that when the sickles are unlocked the lugs engage the edge of the sickle-shanks opposite the notches, which prevents the further outward movement of the locking-bar and leaves the sickle free to be removed from the sickle-bar. A countersunk set-screw 12 at each end of the locking-bar prevents the latter from sliding, said bar having a cavity 13 for a suitable hook to slide the bar.

It is obvious that the locking-bar cannot be removed from the sickle-bar until all the sickles are removed, and in the event of disconnecting the two bars the locking-bar is slid endwise in the groove until its inner end registers with the gage-mark 5. Then the slots 4 and spaces 11 will be found to register, so that the sickle-shanks may be inserted, whereupon the locking bar is pushed inwardly against 3, with the lugs 10 engaging the notches 8 to lock the sickles in place.

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

1. A sickle-bar having a longitudinal groove intersecting a series of transverse sickle-slots, sickles each having a notched stem, and a bar slidable in the groove across the slots and having depending lugs engaging the said stems to lock and unlock the sickles.

2. The combination, with the sickles each having a stem provided with an edge notch, and the sickle-bar having transverse slots for the stems and a longitudinal groove, of a locking-bar having lugs engaging the notches to lock the sickles, and working against the edge of the stems opposite the notch to unlock the sickles and to limit the outward movement of the locking-bar.

3. The combination, with the sickle-bar having transverse slots intersected by a longitudinal groove, of the sickles each having a stem provided with an edge notch, and a locking-bar held by the groove and having lugs to engage the notches and the opposite edge of the stems when in locked and unlocked position respectively.

4. The combination, with the sickle bar having a longitudinal groove open at one end and terminating in a shoulder, and the sickles each having a stem one edge of which has a notch, of a locking-bar having lugs to engage the notches when the bar engages said shoulder to stop the inward movement of the locking-bar, the outward movement of the latter being controlled by the engagement of the lugs with the other edge of the said stems.

In witness whereof I hereunto set my hand in the presence of two witnesses.

SMITH HAGAR.

Witnesses STEWART GILEs, WALTER NAPPER.

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