Improvements in or relating to Machines for Making Chairs.
Year: 1893

page_text: Date of Application, 24th July, 1893
Complete Specification Left, 24th Apr., 1894-Accepted. 25th May. 1804
PROVISIONAL SPECIFICATION.
Improvements in or relating to Machines for Making Chairs.
I JOHN LEAKE DEXTER of The Foundry, High Wycombe in the County of
Buckinghamshire Engineer, do hereby declare the nature of this invention to be as
follows:-
This invention relates to improvements in machines for making chairs whereby
every joint in a chair can be faced by the circular saw and bored to receive
dowels for fixing.
According to this invention upon a suitable frame is carried a circular saw and
said frame also carries a sliding frame which latter carries two drill carriages and
upon each of said carriages is a pair of spindles (driven by a spur wheel) to which
the drills or boring bits are fixed these may be of various sizes.
The said spindles are carried on the said spindle carriage which by worm and
wheel gear is made to revolve concentric with the aforesaid spur wheel and thus
the said spindles may be driven either horizontally vertically or at any desired
angle with the horizontal plane.
The aforesaid sliding frame is brought forward by a lever carrying the drills
up to their work.
In front of the main frame is a slide traversed by a table upon which the work
to be operated upon is held by suitable clips.
Dated this 24th day of July 1893.
BROWNE & Co.,
9, Warwick Court, W.C., Agents for Applicant.
COMPLETE SPECIFICATION.
Improvements in or relating to Machines for Making Chairs.
I JOHN LEAKE DEXTER of The Foundry, High Wycombe in the County of
Buckinghamshire Engineer, 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 machines for making chairs whereby
every joint in a chair can be faced by the circular saw and bored to receive
dowels for fixing.
According to this invention upon a suitable frame is carried a circular saw and
said frame also carries a sliding frame which latter carries two drill carriages and
upon each of said carriages is a pair of spindles (driven by a spur wheel) to
which the drills or boring bits are fixed these may be of various sizes.
The said spindles are carried on the said spindle carriage which by worm and
wheel gear is made to revolve concentric with the aforesaid spur wheel and thus
the said spindles may be driven either horizontally vertically or at any desired
angle with the horizontal plane.
The aforesaid sliding frame is brought forward by a lever carrying the drills up
to their work.
In front of the main frame is a slide traversed by a table upon which the work
to be operated upon is held by suitable clips.

page_text: And in order that my said invention may be fully understood I will describe
the same with reference to the accompanying drawing in which :-
Fig. 1 is a plan of machine.
Fig. 2 end elevation.
Fig. 3 elevation of drill carriage drawn enlarged.
Figs. 4 and 5 details hereafter referred to.
The same letters denote the same parts in all views.
--
The machine consists of a main frame a upon which is carried a circular saw b
upon the frame a is also carried a sliding frame c which in its turn carries two
drill carriages dd one of which is shewn enlarged at Fig. 3 upon each of the drill
carriages d is a pair of spindles e e driven by spur wheel of the spindles ee carry
drills or boring bits i of various sizes. The spindles ee are carried on the spindle
carriage g which is made to revolve (by the worm and wheel gear shewn enlarged
at Figs. 4 and 5) concentric with the spur wheel f, which so drives the spindles e e
though they may be either borizontal, vertical, or at any angle with the
horizontal plane, the spindles ee remaining at the angle at which they may be
placed.
The sliding frame c is brought forward by a lever (not shewn) carrying the
drills up to their work.
In front of the main frame a is a slide h traversed by a table k, upon which the
work to be operated upon is held by suitable clips.
It will be seen by the above that the bits or drills work at any angle so that
not only the seats but every joint in the chair can be faced by the circular saw
and bored to receive dowels for fixing.
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. In chair making machines mechanism for causing the bits or drills to work
at any angle for the purposes described.
2. Chair making machines constructed substantially as described and shewn on
the drawing.
Dated this 24th dox of April 1894.
BROWNE & Co.,
9, Warwick Court, W.C., Agents for Applicant.