and other Fibrous Substances.
Year: 1885

page_text: FIA, LO
and other Fibrous Substances.
:
I JOSHUA VALENTINE EYES of Brooklands, Knock in the County of Down,
Ireland, Mill Manager do hereby declare the nature of my invention for
IMPROVEMENTS IN MACHINERY FOR THE PREPARATION OF FLAX, TOW AND OTHER
FIBROUS SUBSTANCES, to be as follows:-
This invention relates to improvements in the mechanism for applying pressure
to the drawing rollers of preparing machines.
To form the connection between the ordinary weight levers and the bearings on
the axles of the pressing rollers, I employ a peculiar construction of screwed and
grooved connecting rods and nuts. One end of these connecting rods is screwed
for the requisite distance to accommodate the different diameters of the pressing
rollers, but instead of the threads of the screw being all round the rod, the threads
are only upon a portion of its circumference, and the nut into which the screwed
portion of the rod works, has a trench or trenches in it formed by grooving out so
much of the thread as corresponds with what is upon the rod, so that the screwed
portion of the rod may be passed through the nut, to which it becomes connected
by giving a portion of a turn to either the nut or the rod. For the purpose of
giving a longer range for the action of tightening, the outer surface of the grooved
nut may be also screwed to work into a surrounding nut, or the opposite end of
the screwed connecting rod may have a portion of a screw or inclined plane upon
it, which will bear upon a corresponding inclined surface when the portion of a
rotation necessary to form the connection between the rod and nut is given.
When the outer surface of the grooved nut is screwed, one end of the threads on
the rod may be closed, or the internal thread of the screwed nut may be closed,
and so, when the rod is turned round upon its centre, it carries the grooved nut
around with it inside the surrounding nut, and so draws the bush on the axle of
the pressing roller into connection with the weighted levers; or the grooved nut
itself may be turned, and so become connected to the rod; and, in order to take up
the length required to make the parts bear, the surrounding nut can be turned, and
yet, to disconnect the pressure, it is only necessary to turn the connecting rod or
the grooved nut a portion of a rotation in the opposite direction, when the threads
on the rods come into the grooves or trenches in the nut, and the weight is
disconnected from the pressing roller.
100K

page_text: Improvements in Machinery for the Preparation of Flax, Tow,
and other Fibrous Substances.
I JOSHUA VALENTINE EVES of Brooklands, Knock in the County of Down,
Ireland, Mill Manager 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 improvements in the mechanism for applying pressure
to the drawing rollers of preparing machines, and will be understood from the
following description, reference being made to the drawing herewith, in, which the
same letters and figures of reference always apply to the same or like parts.
Fig. 1 is a section of so much of a preparing frame as is required to illustrate
the application of the invention thereto.
The drawing rollers are shewn at A B,-A being the fixed roller and B the pressing
rollers. CC are the weight levers, linked together, and pivotted to the main
framing, the lower lever C¹ serving to carry the weight near the front of the
drawing frame.-B¹ is the bearing piece, one for each pair of pressing rollers, which
bearing piece serves to transmit pressure to the axle of the rollers B from the weight
levers CC. D is one of a series of adjustable rods which connect the bearing
pieces B¹ adjustably with the weight levers.-This rod passes through the bearing
piece B¹, and has a butterfly head, which provides for its being turned axially for
the adjustment or release of the pressure.
The lower end of the connecting rod D, and also the nut E, which couples it
with the weight lever C, I construct as shown in the detail views, Figs. 2 to 6
inclusive. That end of the connecting rod D which enters the nut E is threaded
for a length sufficient to accommodate the varying diameters of pressing rollers B:
the threads are cut away at its opposite sides, leaving only parts thereof, as shewn
at Figs. 2, 3 and 4.
The nut E, into which the screwed portion of the rod takes, is grooved out at its
opposite sides, as shewn at Fig. 5, to correspond to the thickness of the flattened
part of the rod D.-This arrangement permits of the threaded portion of the rod
being passed freely into the nut to any desired extent, preparatory to connecting it
with the nut, by giving it an axial turn, and thereby engaging the screwed threads
of the rod and nut with each other.
The lever C is forked to permit of the rod D passing through it, and the prongs
of the fork rest upon knife edges e formed on opposite sides of the nut E, see
Figs. 5 and 6.-To prevent the nut dropping away from the lever C, it is
connected loosely thereto by a pair of links c, as shewn at Fig. 1.
It will be obvious that the rod may be inverted, in which case the lever C will
bear upon the inverted head of the rod, and the adjustment will be effected by
turning the nut E upon the screwed end of the rod.
For the purpose of obtaining a long range of adjustment, I may modify my
invention, as shewn at Figs. 7 to 9, inclusive. In this example, the connecting
rod, which is toothed, takes into an elongated nut E¹, threaded both internally
and externally-Internally, it is grooved longitudinally to permit of the ready.

page_text: insertion of the rod to any desired depth, and the internal threads of the nut are
stopped to allow of the teeth of the rod locking with the nut, and turning it as
the rod is turned. This elongated nut E', by working in the fixed nut E, draws
down the bearing piece B¹ tightly onto the axle of the pressing rollers B.-To
remove the pressure, it will only be necessary to turn the rod in the reverse
direction.
A further modification of my invention is shewn at Figs. 10 to 12 inclusive,
where the connecting rod is provided, on one side, with a series of pins or teeth,
which enter a longitudinal slot made in the elongated nut E', and take into notches
(commencing at opposite sides of the groove), for the purpose of locking the parts
together. The pins entering these notches will serve to turn the elongated nut in
its fixed nut, and thereby put the requisite pressure on the bearing piece B¹.
A slight reverse movement of either the connecting rod or the elongated nut will
free the axle of the pressing rollers from the pressure of the bearing piece B¹.
It will be obvious that instead of stopping the internal threads of the nut E, as
shewn at Fig. 8, the teeth of the rod may be stopped, to form abutments against
the opposite sides of the groove or grooves, by the pressure of which, the elongated
nut will be turned in either direction.
Having now particularly described and ascertained the nature of my said
invention, and in what manner the same is to be performed, I declare that what
I claim is
The means above described for connecting the bearing pieces of the pressing
rollers of preparing machines adjustably with their weighted levers, and providing
for the instant removal of the pressure from such bearing pieces.
DL: 0111
7000
NEWTON & SON,
Agents for the Applicant.