US458629A

US458629A - Ferdinand f

Info

Publication number: US458629A
Authority: US
Publication date: 1891-09-01
Anticipated expiration: 1908-09-01

Description

(No Model.).

P. F. GQJAE'HNKE. CUTTER BAR.

No. 458,629. Patented Sept. 1,1891.

u] I| J/VWMQU. I 13 JL JQMT MM @Qf/ UNITED STATES PATENT OFFICE.

FERDINAND F. JAEHNKE, OF JOHNSONS CREEK, WISCONSIN.

CUTTER-BAR.

SPECIFICATION forming part of Letters Patent No. 458,629, dated September 1, 1891.

Application filed February 28, 1891. Serial No. 383,241. (No model.)

To all whom it may concern:

Be it known that I, FERDINAND 1 G. J AEHNKE, of J ohnsons Creek, in the county of Jefferson and State of Wisconsin, have invented a new and useful Improvement in Cutter-Bars, of which the following is a description, reference being had 'to the accompanying drawings, which are a part of this specification.

My invention relates to a cutterbar adapted for use with a mower or reaper or binder, in which cutter-bar a series of sections with inclined square or beveled edges form a serrated knife, and the cutter-bar is adapted to be reciprocated endwise through guides or slotted fingers on a finger-bar.

' entirely across that end of the section.

The object of my invention is to provide means for securing the sections of the knife securely but removably in the finger-bar.

In the drawings, Figure 1 is a top plan View of the complete cutter-bar, aportion being broken away for convenience of illustration. Fig. 2 is a rear elevation of the device shown in Fig. 1. Fig. 3 is a transverse section on line 3 3 of Fig. 2. Fig. 4 is an enlarged view of a fragment of the cutterbar, parts being shown in section to exhibit interior construction. Fig. 5 is a fragment of a modified form of the cutter-bar.

The steel bar A is provided with a groove B from one end nearly to the other end of the bar in the upper surface at a little distance from the rear edge of the bar. The knife-sections G at their rear edge are bent downwardly, forming a flange D,extending The flange D is adapted to enter the groove B, and the number and size of the sections are such as to fill the entire length of the groove. A strap E is placed over the rear portion of the section 0 above and opposite the bar A, and is secured to the bar A at one end by a screw F, passing through the strap through the section C and turning into the bar A, and at the other end the strap is held tightly against the sections by a wedge-shaped key G, inserted in the upturned end or lug H of the bar A and bearing against the strap E. The outer end of the key G is provided with a screw-thread on which the nut I turns against the lug H to retain the key in its seat. To take up any possible play between the sections and to wedge them tightly in place, the inner end of the groove Bis beveled at K, so that the flange D of the section C, bearing against the beveled end of the groove, will be forced against the other sections, wedging them tightly in place in the groove. The strap E thus secured in place upon the sections C holds them securely in place, but in such manner that they can be readily removed for grinding or repairing or for replacing a single section if broken by unfastening and removing the strap E.

In the modified form of device shown in Fig. 5 the inner end of the strap E is secured to the bar A by screws F, passing through the strap and turning into the bar A at a distance of one foot apart. This means of securing the strap E to the bar A may be used instead of the key G, although the key is preferred as being more readily removed and inserted when necessary.

WhatI claim as new, and desire to secure by Letters Patent, is-

1. In a cutter-bar, the combination, with a bar having a longitudinal groove the inner end of which is beveled downwardly, of a series of knife-sections having flanges at their rear ends adapted to enter and fill the groove in the bar and be crowded together by the bevel at the end of the groove, and a strap secured to the bar over the sections in such manner as to hold the sections to the bar and close to each other by forcing the end section inwardly against the bevel at the end of the groove, substantially as described.

2. In a cutter-bar, the combination, with a bar having a longitudinal groove the inner end of which is beveled downwardly, of a series of knife-sections having flanges at their rear ends adapted to enter and fill the groove and be crowded together by the bevel at the end of the groove, substantially as de scribed.

3. In a cutter-bar, the combination, with a bar having a longitudinal groove, of a series of knife-sections having flanges adapted to enter the groove in the bar, and a. strap In testimony whereoflafiix mysignature in bearing on the knife-sections opposite the presence of two witnesses. bar and secured thereto at one end by a 1 screw and at the other end by a Wedge- LERDINAND JAEHNKE shaped key inserted in a lug 011 the bar and \Vitnesses:

bearing against the strap, substantially as W'. V. WOODMAN, described. 1

WM. SCHOESHERT.