Year: 1888

page_text: Date of Application, 22nd June, 1888
Specification Accepted, 27th July, 1888
пеартиб ани тUWILS
BLACHARCO
We JAMES GRANT of Melbourne Pocklington York in the County of York
Blacksmith and THOMAS HARRISON Belinda Street Hunslet Leeds in the County of
York Engineer do hereby declare the nature of this invention and in what manner
the same is to be performed, to be particularly described and ascertained in and
by the following statement :-
This invention has for its object the construction of a new and improved type of
Mechanism for actuating and imparting a reciprocating or lateral motion to the knife
bar of Reaping & mowing machines.
In order to facilitate the description of our invention and to shew the application of
the improvements therein to Reaping & mowing machines we submit the following
drawings.
Fig. 1. is a side elevation of an ordinary Reaping machine, with the improvements
in our invention attached thereto.
Fig. 2. is a plan of the same.
Fig. 3 is a detail of the invention shewn separately.
Fig. 4 is a modification of fig. 3.
Fig. 1 and 2 as hereinbefore refered to shews two views of a suitable Reaping
machine & are given in order to illustrate the application of our invention to the
ordinary class of Reaping machines, the parts only being alluded to which require to
be mentioned in reference with the working of the said invention.
The usual method adopted for imparting motion to the knife bar of the said
machines, consists of placing or fixing to the axle a train of toothed wheels, suitably
geared & arranged for imparting motion to a crank which is connected by means of
a rod to the knife-bar & effects the working of the same. By our invention we
propose effecting the same result without the use of the said toothed wheels.

page_text: The said invention consists of a disc (A) (Figs. 1, 2 & 3) on which is formed a
corrugated flange (D), the hole (G) in the centre of the disc, being bored out to suit
the main axle (E), and the boss (H) forms a clutch for sliding the disc in and out
of gear.
In order to actuate the knife bar the disc (A) is placed on the axle (E) in the
position shewn in (Fig. 2), with the square part of the hole (G) fitting a corresponding
square (C) formed on the axle, and the corrugated flange (D) is set between two loose
rollers (B) carried by the lever (P), which is fixed to, or made in one piece with the
vertical shaft (0), the said shaft being placed in a suitable bracket (Q) fixed to the
main frame (N) of the machine. On the bottom part of the shaft (0), and at right
angles with the lever (P) a second lever (R) is fixed, which is connected to the knife
bar (S) by means of the connecting rod (L).
When the dise A is set in motion the corrugated flange (D) revolves between the
rollers (B) and imparts to the lever (P) a vibratory motion, which is conveyed by
means of the lever (R) and the rod (I) to the knife bar (S).
In order to cause the knife bar (S) to move in a line parallel to the axis of the
machine it is placed in suitable guides (T) (Fig. 2), fixed to the finger bar (M).
To set in motion or stop the working of the knife bar, the disc (A) is thrown on or
off the square part of the axle (C) by the handle (X), which is connected to the boss
or clutch (H) by a suitable forked lever, the said lever being fitted with suitable dies
for running in the groove K.
A modification of the corrugated flange (D) is shewn in (Fig. 4) and consists of
the arrangement of a double line of studs V round the disc (A), each stud carrying a
loose roller (Y) which comes in contact as the disc revolves with the die (Z) carried
by the lever (P). On coining in contact with the die each stud in the outer line moves
the lever to the left, and each stud in the inner line moves it to the right, or otherwise
the lever (P) is actuated by the arrangement of studs in the same way as the lover (P)
is actuated by the corrugated flange (D).
It is to be understood that the parts forming the mechanism for actuating the knife
bar in this invention is applicable alike to all purposes for which Reaping and mowing
machines are used.
Having now particularly described and ascertained the nature of our said inven-
tion & in what manner the same is to be performed we declare that what we
claim is.
First. The means of actuating the knife bar of Reaping & Mowing machines by the
use of a disc (A) (Figs. 1, 2 & 3) on which is formed a corrugated flange (D), the
said flange imparting through suitable levers and rods the required motion to the knife
bar, substantially as herein before described and illustrated.
Second. The modification consisting of arranging round the disc (A) suitable studs
in place of the corrugated flan ge (D) substantially as described and illustrated.
Third. The combination of parts forming the mechanism for actuating tho knife
bar in Reaping and mowing Machines substantially as and for purposes herein
set forth.
Dated this 20th day of June 1888.
F. JOHNSON,
Agent for Applicants.