Year: 1897

page_text: I, DAVID PONT, of 26, Malton Street, Werneth Hall Road, Oldham, in the County
of Lancaster, Foreman-joiner, do hereby declare the nature of this invention to be
as follows:-
This invention relates to improvements in mortising machines and has for its
object to provide simplicity in construction and render same more expeditious.
To this end I adapt the spindle which carries the tool or mortise bit, to oscillate
horizontally in relation to the slide which holds the work to be operated upon. The
said oscillation I obtain by pivoting the back end of the said spindle to a suitable.
table or frame or fixing it thereon between centres and by mounting its front end in
a bearing reciprocated by means of a crank pin or eccentric and connecting rod.
The said spindle carries a pulley by means of which it is rotated and if desired may
be extended past its point of oscillation and receive another tool or mortising bit
so as to form a double acting machine.
1
·
F. BOSSHARDT & Co.,
Agents to Applicant.
I, DAVID PONT of 26, Malton Street, Werneth Hall Road, Oldham, in the County
of Lancaster, Foreman-joiner, 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 mortising machines specially adapted
for the manufacture of doors and windows and has for its object to provide
simplicity in construction and render the said machine more expeditious.
And in order that my invention may be more fully understood I have caused to
be appended hereunto one sheet of drawings marked with letters of reference
indicating like parts in the various figures, Fig. 1 being a front view, Fig. 2 a plan
and Fig. 3 a side view of my improved mortising machine. Fig. 4 is a cross
Price 81

page_text: section of a detail at an enlarged scale, and Fig. 5 a plan of a modification of my
invention.
In carrying out my invention and referring to the figures generally I adapt the
spindle a which carries the tool or mortise bit b, to oscillate horizontally in relation
to the slide c which holds the work to be operated upon. The said oscillation I
obtain, in the present instance, by pivoting the back end of the spindle a to a
suitable table or frame d, say by means of the bearing e having a pivot e¹ and by
mounting its front end in a bearing f resting upon the table and reciprocated by
means of a crank pin g (or eccentric) and connecting rod h.
In lieu of pivoting the bearing e to the table or frame it may be mounted
between two centres thereon, as will be readily understood. In order to guide and
prevent the bearing from lifting off the table or frame d, a segmental groove d¹
is formed in the latter and adapted to receive a correspondingly shaped slide fl
secured to the under side of the bearing f. The spindle a carries also a pulley i
by means of which it is rotated and if desired may be extended past its point of
oscillation e and receive another tool or mortising bit b so as to form a double
acting machine as will be easily understood.
The pulley is rotated from the driving shaft k by means of the strap and the
pulley m.
The crank pin g is rendered adjustable on its disc g' so as to permit of varying
the amount of oscillation of the tool or bit bas may be required. The disc g! is
carried and rotated by the vertical shaft n mounted in bearings o, o, and has
motion imparted by a half-crossed strap running from the driving shaft k
over the pulley p, fixed to the lower end of the shaft n. The driving
shaft carries also a fast and loose pulley q &r and has motion imparted by the
strap q¹.
In order to be able to vary the angle at which the tool or mortising bit b cuts at
the ends of the mortise, for the purpose of forming wedge spaces, the centre of
rotation of the disc g is rendered adjustable by hinging the bearings o, o, to a
bolts, forming the top bearing with a handle o¹ and furnishing it with a spring
catch p' adapted to engage in notches t formed in a plate t¹ secured to the stationary
part of the bearing o.
On the front of the frame d is rendered vertically adjustable by means of the
screw spindle d¹ the bracket d2 and upon the latter horizontally to and from the tool
or bit 6 the slide c by means of the screw spindle c'. The slide c is of angular form
and has an opening in its back through which the tool or bit 6 projects and in which
it can oscillate. To the bottom of the slide c is fixed at each side a sloted rail u
furnished with spring pegs which can be adjusted longitudinally. These pegs
are set to the distance at which it is desired to mortise the work, which is placed
over one peg against the other and secured in such position by means of the clamp
screw b¹ on the slide c.
As will be seen from Fig. 4 the peg v is placed under the influence of a spring v
so as to allow of depression by the work when placed over it and is mounted in a
block w which by means of the nut can be longitudinally adjusted in the
rail u.
A modification of my invention consists in mounting both ends of the tool shaft a
in bearings adapted to slide on the table or frame d, as shown in Fig. 5, which
bearings are connected together and jointly oscillated by means of the rod h and
crank pin g (or eccentric). The spindle a may carry a tool or bit b at one end only
or at both as may be desired.
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
1st. In mortising machines, the employment of a rotary tool shaft a adapted to

page_text: 2nd. The general construction and combination of parts constituting my improve-
ments operating substantially as set forth.
Dated this 15th day of July 1897
F. BOSSHARDT & Co.,
4, Corporation Street, Manchester, Agents to Applicant.