Improvements in or connected with Means for Shifting or Throwing On and Off Driving Bands or Straps.
Year: 1895

page_text: Date of Application, 5th Dec., 1895
Complete Specification Left, 2nd Oct., 1895-Accepted, 7th Nov., 1896
PROVISIONAL SPECIFICATION.
Improvements in or connected with Means for Shifting or
Throwing On and Off Driving Bands or Straps.
We, HARRY CARSS NEWSON, Land Agent, of No. 57, Lincoln's Inn Fields, in
the County of London, and THE CERES IRONWORKS, LIMITED, Engineers, of
Kingston-on-Thames, in the County of Surrey, do hereby declare the nature of
this invention to be as follows:-
This invention relates to improvements in or connected with means for shifting
or throwing on and off driving bands or straps, and has for its object to provide a
simple and inexpensive device by the aid of which a driving band may be shifted
from the fast to the loose pulley or vice versâ and there securely held against
accidental lateral movement.
In carrying the invention into effect, a fixed horizontal beam or bar is employed
upon which is mounted with capability of sliding a fitting which constitutes the
back of the fork, the prongs of which embrace the driving band in the usual
manner.
Upon the horizontal beam is also mounted, with capability of sliding, a block
which is adapted to be fixed with the beam or bar in any desired position by means
of set screws, and this block is provided with a laterally projecting stud or axis
upon which is mounted with capability of revolution a grooved wheel or pulley
around which passes an endless hand rope at one point fixed with the grooved
wheel or pulley, and depending therefrom into a convenient position for handling.
At one side of the back of the fork is provided a projecting stud upon which is
mounted with capability of rocking a clamping device formed with a horizontal slot
or opening therethrough to receive one end of a connecting rod and provided with
a set screw for fixing the same therewith, and upon the face of the grooved wheel
or pulley is provided a crank pin or stud upon which is mounted a similar clamping
device which receives the other end of the connecting rod which is also fixed
therewith in the manner above described.
The axis of the crank pin in the normal position of the parts coincides with
a horizontal line drawn through the stud or axis of the clamping device of the fork,
so that by turning the grooved wheel or pulley a half revolution by the aid of the
endless band rope the fork will be traversed along the horizontal bar the distance
necessary to shift the driving band from one pulley to the other where it will
be arrested by the connecting rod coming down upon the stud or axis of the
grooved wheel or pulley or by any other suitable stop, whilst, in either of its
extreme positions, the crank pin will be in horizontal alignment with the pin
or stud of the fork and axis of the wheel or pulley and therefore at a dead centre,
and thus the fork is securely locked against accidental movement.
Dated this 5th day of December 1895.
VAUGHAN & SON,
Agents for the Applicants.

page_text: '
Improvements in or connected with Means for Shifting or
Throwing On and Off Driving Bands or Straps.
We, HARRY CARSS NEWSON, Land Agent, of No. 57, Lincoln's Inn Fields, in
the County of London, and THE CERES IRONWORKS, LIMITED, Engineers, of
Kingston-on-Thames, in the County of Surrey, 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 :-
Our said invention relates to improvements in or connected with means for
shifting or throwing on and off driving bands or straps, and has for its object
to provide a simple and inexpensive device by the aid of which a driving band may
be shifted from the fast to the loose pulley or vice versa and there securely
held against accidental lateral movement.
In carrying the invention into effect, a fixed horizontal beam or bar is employed
upon which is mounted, with capability of sliding, a fitting which constitutes the
back of the fork, the prongs of which embrace the driving band in the usual
manner.
Upon the horizontal beam is also mounted, with capability of sliding, a block
which is adapted to be fixed with the beam or bar in any desired position by means
of set screws, and this block is provided with a laterally projecting stud or axis
upon which is mounted with capability of revolution a grooved wheel or pulley
around which passes an endless hand rope or chain at one point fixed with
the grooved wheel or pulley, and depending therefrom into a convenient position
for handling.
At one side of the back of the fork is provided a projecting stud upon which
is mounted, with capability of rocking, a clamping device formed with a
horizontal slot or opening therethrough to receive one end of a connecting rod and
provided with a set screw for fixing the same therewith, and upon the face of the
grooved wheel or pulley is provided a crank pin or stud upon which is mounted a
similar clamping device which receives the other end of the connecting rod which
is also fixed therewith in the manner above described.
The axis of the crank pin in the normal position of the parts coincides with
a horizontal line drawn through the stud or axis of the clamping device of the fork,
so that by turning the grooved wheel or pulley a half revolution by the aid of the
endless hand rope or chain the fork will be traversed along the horizontal bar the
distance necessary to shift the driving band from one pulley to the other where it
will be arrested by the connecting rod coming down upon the stud or axis of the
grooved wheel or pulley or by any other suitable stop whilst in either of its extreme
positions the crank pin will be in horizontal alignment with the pin or stud of the
fork and axis of the wheel or pulley and therefore at a dead centre, and thus the
fork is securely locked against accidental movement.
And, in order that the said invention may be more clearly understood and
readily carried into effect, we will proceed, aided by the accompanying drawings,
more fully to describe the same.

page_text: Figure 2. is a plan thereof, and,
Figure 3. is an end view thereof.
In the several figures like parts are indicated by similar letters of reference.
a. represents a fixed horizontal beam or bar upon which is mounted with
capability of sliding, a fitting b. which constitutes the back of the fork b¹ and
the prongs of which fork embrace the driving band (not shown) in the usual
manner.
Upon the horizontal beam a. is also mounted with capability of sliding a block c.
which is adapted to be fixed with the beam or bar a. in any desired position by
means of set screws c¹ screwing through bosses c2 upon the block c, and this
block c. is provided with a laterally projecting stud or axis c³ upon which is
mounted with capability of revolution a grooved wheel or pulley d. or it might be
a chain wheel around which passes an endless hand rope, or chain d', and depending
therefrom into a convenient position for handling.
At one side of the back or fitting b. of the fork b' is provided a projecting stul 62
upon which is mounted with capability of rocking a clamping device e' formed with
a horizontal slot or opening therethrough to receive one end of a connecting rod e
and provided with a set screw. e² screwing through the clamping device e¹ and
impinging upon the connecting rod e. for the purpose of fixing the same therewith.
Upon the face of the grooved wheel or pulley d. is provided a crank pin or
stud d upon which is mounted a similar clamping device e¹ which receives the
other end of the connecting rod e. which is also fixed therewith in the manuer above
described.
The axis of the crank pin d in the normal position of the parts which is indicated
by the full lines in Figure 1, coincides with a horizontal line drawn through the
stud or axis of the clamping device e¹ of the fork fitting b. so that by turning the
grooved wheel or pulley d. a half revolution by the aid of the endless band, rope
or chain d' the fork fitting b. and consequently the fork & will, as indicated by the
dotted lines in Figure 1, be traversed along the horizontal bar a. the distance
necessary to shift the driving band from one of the machine pulleys to the other
where it will be arrested by the connecting rod e. coming down upon the stud or
axis of the grooved wheel or pulley d. or any other suitable stop might be
employed for this purpose whilst in either of its extreme positions the crank pin d.
will be in horizontal alignment with the axis or stud 62 of the fork fitting b. and
axis of the wheel or pulley d. and therefore at a dead centre, and thus the
fork b will be securely locked against accidental movement.
It will be understood that the details of the device may be more or less modified
without departing from the spirit of the invention.
Having now particularly described and ascertained the nature of our said inven-
tion and in what manner the same is to be performed, we declare that what we
claim is :-
1. In a device for shifting driving belts, the combination of a fixed bar, a block
or fitting carrying the fork and adapted to be traversed along the bar, a grooved
wheel or pulley or the like mounted upon a stud, an endless rope or chain for
rotating the grooved wheel, a crank stud carried by the grooved wheel, a coupling
rod connecting the crank stud and the fork and a stop or like means for arresting
the wheel with the coupling rod in a horizontal position or with the crank stud at
a dead centre, all operating in manner substantially as herein shown and described
and for the purpose stated.
2. In a device for shifting driving belts, the combination of a fixed bar, a block
or fitting carrying the fork and adapted to be traversed along the bar, a block or
fitting adjustably fixed upon the bar, a grooved wheel or pulley or the like
mounted upon a stud carried by such block, an endless rope or chain for rotating
the grooved wheel, a crank stud carried by the wheel, a fitting carried by the
crank stud, a stud carried by the fork, a fitting mounted upon the fork stud and a

page_text: coupling rod adjustably connecting the two fittings, all operating in manner
substantially as berein shown and described and for the purpose stated.
Dated this 2nd day of October 1896.
VAUGHAN & SON,
Agents for the Applicants.