AN IMPROVED CONSTRUCTION OF DRIVING APPARATUS TO BE APPLIED FOR GIVING MOTION TO THE WORKING PARTS OF TOOLS OR INSTRUMENTS WHICH REQUIRE WHILST AT WORK TO ASSUME VARIOUS POSITIONS OR BE APPLIED TO PLACES DIFFICULT OF ACCESS, TOGETHER WITH THE MEANS EMPLOYED IN CONNECTION WITH SUCH INSTRUMENTS OR TOOLS WHEREBY THE SAME CAN BE SO DRIVEN
Year: 1878

page_text: PROVISIONAL SPECIFICATION left by Robert Savage at the Office of the
Commissioners of Patents on the 30th November 1878.
ROBERT SAVAGE, of Melbourne, Australia, now residing in Wellington Street,
Strand, in the County of Middlesex. "AN IMPROVED CONSTRUCTION OF DRIVING
APPARATUS TO BE APPLIED FOR GIVING MOTION TO THE WORKING PARTS OF
TOOLS OR INSTRUMENTS WHICH REQUIRE WHILST AT WORK TO ASSUME VARIOUS
POSITIONS OR BE APPLIED TO PLACES DIFFICULT OF ACCESS, TOGETHER WITH
THE MEANS EMPLOYED IN CONNECTION WITH SUCH INSTRUMENTS OR TOOLS
WHEREBY THE SAME CAN BE SO DRIVEN."
The Invention relates to a novel construction and arrangement of apparatus
which is designed for driving with facility and ease those descriptions of portable
or hand instruments which are required whilst at work to be moved over an
extended surface in any direction or position which will suit the work in hand, or
in localities varying as. to distances from whence the power driving the same is
transmitted.
:
For example, the improved driver hereinafter described will be applicable for
giving rapid motion to drilling, chasing, and other similar tools which are required
to be held by hand, or applied by portable frames or supports whilst working to
substances or materials in positions which would otherwise be difficult to get at.
The improved apparatus is also particularly serviceable as a driver of instruments
employed for clipping horses or shearing sheep or other animals, or for giving
motion to rotating brushes and other implaments used for cleansing or brushing
purposes.
In order that the improved construction of driver and its connections may be
well understood I will proceed to describe as an example its utility as a driver of
and in connection with that class of instrument or instruments which are employed

page_text: for clipping horses or shearing sheep or other animals, in which cutters or an upper
plate provided with saw like cutting teeth is or are caused to revolve, reciprocate,
or slide to and fro over the teeth of an under comb or plate.
The said improved driving apparatus hereinafter described may be arranged so
that it can be adapted to a portable frame capable of being moved from place to
place; or it may be set up and fixed in a shed, barn, stable, or other building, in
which latter case a series of the said drivers can be fixed at suitable distances apart
and in a manner which will enable a number of men to be at work clipping or
shearing at one time.
The improved construction of apparatus consists in mounting upon a standard or
upright a driving wheel provided with a deep V-ed recess around its periphery, and
at a distance to the rear of this driving wheel a block-pulley is supported by a cord or
chain passing over a pulley which is fixed at a convenient point to the framing of
the machine.
The opposite end of this cord or chain is provided with a weight which has a
tendancy to keep the block-pulley when not otherwise acted upon at its greatest
distance from the driving wheel.
At a short distance below or underneath the said driving wheel two guide pullies
are supported in a bracket secured to the upright or standard; this said bracket is
also provided in front of the said standard or frame with two slotted projections,
which support three small guide pullies, the frame of which is capable of swivelling
and turning in its slotted bearings. At a convenient distance in front of the said
driving wheel (when the instrument to be driven is employed for shearing sheep) a
table is situated which is provided with an adjustable platform, which, whilst
supporting the sheep, accomodates its motion so that the surfaces of the sheep are
readily and easily presented for shearing. The instrument of the class herein
before described to be employed in the shearing operation is provided at its rear
with a horizontal driving pulley, which gives motion to an eccentric pin or other
equivalent actuating the rotating knives, or for giving motion to the throw lever in
connection with and giving action to the cutter plate. From the axis of this
horizontal pulley a radial arm projects, which supports a set of guide pullies which
are capable of moving in a segmental course partially around the said pulley giving
motion to the cutters and knives or cutter plate of the instrument. In order to
give, through the medium of the aforesaid arrangement and disposition of driving
wheel and guide pullies, a constant and rapid action to the cutters of the instru-
ment whilst the same is being moved over the back of the animal operated upon
connect or gear the whole together by means of an endless cord in the manner
following:-
-
I
After passing the cord first round the horizontal pulley and through the swivelling
guide pulllies secured to the shearing instrument I direct its course to and through
the series of guide pullies sliding and oscillating in the slotted portion of the bracket
secured to the upright or standard before mentioned, which said bracket also supports
the other larger fixed guide pullies, from which the cord directs its course so as to
pass around and embrace in an endless traverse the upper deep Ved driving wheel
and the compensating weighted pulley block before mentioned.
It will now be seen that when the driving wheel is set in motion the endless
driving cord will, whilst passing round and through the series of guide pullies
herein described, transmit a rapid easy motion to the horizontal pulley on the
instrument during the time the operation of clipping or shearing is proceeding.
The tension of the said driving cord whilst transmitting motion is maintained
through the medium of the compensating movement of the weighted pulley block
supported at a distance and in a position behind the driving wheel. Thus it will
be seen that the tension and course of the driving cord being constantly maintained
the operator is enabled to direct the cutting, clipping, or shearing operations of the
instrument over an extended surface in any direction with the greatest ease and
facility.

page_text: The said apparatus, as before described, may be applied to a portable frame
capable of being moved from place to place; or it may be fixed up in a shed, barn,
stable, or other building, in which case the said building can be supplied with a
number or set of drivers placed at equil distances apart, and so arranged that the
whole of the driving wheels can be actuated so as to run independantly or together
by means of clutch gearing receiving motion from a line of shafting running through
the building, which is driven by power.