An Improved Machine for Cutting Sawn Lengths of Timber into Short Lengths.
Year: 1898

page_text: Date of Application, 27th June, 1898-Accepted, 30th July, 1898
COMPLETE SPECIFICATION.
An Improved Machine for Cutting Sawn Lengths of Timber into
Short Lengths.
I, ALBERT CHIVERS, of Constance Street, Fortitude Valley, Brisbane, in the
Colony of Queensland, Carpenter, 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 machines for cutting sawn lengths of timber into short
lengths, as blocks used for wood paving and the like, boards for box and case
making and the like, and the object is to provide a simple machine that will cut
the timber into short lengths more rapidly and more accurately than the horizontal
sliding saw, or the ordinary bench saw.
In carrying out my invention, I provide a suitable framework and on the
underside thereof are secured two vertical rods suitably stayed. These rods carry
on shafting running in bearings free to slide down and up thereon, a circular saw.
The saw is controlled by means of a lever, operated by an attendant, and is driven
by a belt (from the source of power) of such length that the travel of the saw
does not interfere with the running of it. A movable stop is provided at the end
of the bench for regulating the length of the pieces cut off, which latter drop
through an opening in the bench.
In order however, that my invention may be clearly understood, I will now
describe it, referring to the drawings herewith, in which,
Fig. 1 is a side elevation.
Fig. 2 is an end elevation, part of the framework being removed, and
Fig. 3 is a plan of the end of the bench showing the regulating stop.
From framework A and stayed thereto, I bolt two vertical rods B carrying
shafting C running in bearings D free to slide down and up thereon. The circular
saw E is driven from an engine or countershaft by belting F which is of such a
length that the travel of the saw does not interfere with the tightness of the belt.
A stop G may be provided for regulating the upward travel of the bearings D.
The operating lever H carried from the framework A is articulated to the bear-
ings D and enables the attendant to raise or lower the saw E.
A counter balance weight K is attached to the lever H and generally arranged
so that the saw has to be raised by the operator. The bench L is placed
immediately under the saw E and is provided at the end with an opening N for the
cut piece of timber to pass through, and a regulating stop J by which the length
of the pieces cut off may he regulated. If desired a shield M shown by dotted
lines, may be fitted over the saw.
The mode of using my invention is as follows:-
The stop J is set for the required length of timber to be cut off and the saw E
started and raised by the operator, one attendant feeds down the plank against the
stop J and the operator lifts the lever H thereby allowing the saw to cut through
the plank, and immediately raises it again, the piece so cut off falls through the

page_text: opening N in the bench L, and the plank is again put up to the stop ready for
the saw to descend and cut off another piece.
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:-
1. A circular saw having a vertical travel controlled by a lever as herein
described and illustrated.
2. A circular saw bench having an adjustable end stop arranged so that the
length cut off to the stop can drop through the bench as herein described and
illustrated.
3. A circular saw having a vertical travel controlled by a lever, in combination
with a bench having an adjustable end stop arranged so that the length cut off
can drop through the bench, as herein described and illustrated.
Dated the 27th day of June 1898.
PHILIP M. JUSTICE.