An Improvement in Hand Presses for Hay and Straw.
Year: 1896

page_text: Date of Application, 13th June, 1896
Con plete Specification Left. 17th Feb., 1997-Accepted, 15th May. 97
PROVISIONAL SPECIFICATION.
An Improvement in Hand Presses for Hay and Straw.
WILLIAM MCNAUGHTAN Millwright and Engineer Park Lane Stirling N.B. do
hereby declare the nature of this invention to be as follows:-
Making the hand levers of hay and straw presses to act direct on the press during
the upward as well as downward strokes, in following manner, one or two bars of flat
iron or steel, with ratchet teeth cut on each edge of bar, are placed at each end of
press the bottom ends of bars being fixed to bottom of press the top end held in
position by guides fixed to frame of press. A rocking shaft with disc on one or both
ends according to number of ratchet bars used, is fixed on each end of press the
center of shaft and center of bars being in line, each disc face carreys two pawls
which work into ratchet bars, the levers are fixed on the shafts and in working make
the pawls act alternatly on the ratchet bar but always in an upward direction giving
the press an almost continuos motion.
1000
WM. MCNAUGHTAN.
WILLIAM MCNAUGHTAN Millwright and Engineer Park Lane, Stirling, Scotland 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 relates to an improved method of securing a direct and double
action from the hand levers of hay and straw presses whereby the movable bottom
of press will receive both pressure and motion during the upward as well as the
downward stroke of the levers in the manner herein described and illustrated by the
accompanying drawing. At each end of the press is placed a flat bar A Figs. 12 & 3
of iron or steel with ratchet teeth on each edge of bar the bottom end of this bar is
fixed to the projecting ends of girder B Figs. 1 & 3 that carries the movable bottom
or compressing side of press the top end passes through and is kept in vertical position
by guide C Figs. 1, 2 & 3 which is fixed to end of press.
DD' are two carrier brackets also fixed to end of press into these carrier brackets
works a rocking shaft E Fig. 1 & 3 round the center of this shaft is a projection that
takes the form of an oblong flange F Fig. 2 a continuation of which forins the hand
lever socket G Fig. 2 through the oblong flange F is a vertical slot through which the
ratchet bar A passes freely and into which also are pivoted one on each side of ratchet
bar, the two pawls HH' Fig. 2 which engage with the teeth of ratchet bar and are
kept in contact with it by means of spiral spring I Figs. 2 & 3 when the movable
bottom has to be let down after the bale is made the two pawls are thrown out of
contact with the ratchet bar by means of a cam which is worked by lever J

page_text: Figs. 1 & 3 in working the press the two pawls act alternatly on the ratchet bar as
the lever is moved up and down thereby utilising the whole movement of the hand
levers for working the movable bottom or compressing side of press.
Having now particularly described and ascertained the nature of my said inven-
tion and in what manner the same is to be performed I declare that what I
-claim is
1st. An improved method of transmitting pressure and motion from the hand
levers of hay and straw presses to the compressing side of press whereby the full
movement of the hand lever is utilised.
2nd. A simple and direct double action by means of double ratchet bar with two
pawls pivoted into and working with a rocking shaft substansially as described.
Dated this 16th day of February 1897.
WILLIAM MCNAUGHTAN.