Improvements in Metal Shaping Machines.
Year: 1899

page_text: Date of Application, 23rd Dec., 1899
Complete Specification Left, 22nd Oct., 1900-Accepted, 15th Dec.,
1900
Improvements in Metal Shaping Machines.
We, JULIUS HERMANN WEISS, of Court Road, Eltham, in the County of Kent,
Merchant, and LORENZO Dow COGSWELL, of 22, Charlotte Street, Great Eastern
Street, in the County of London, Engineer, do hereby declare the nature of this
invention to be as follows:-
This invention has reference to a construction of metal shaping machine
designed to enable the cutting tool to oscillate about an axis for the production
of curved work of any desired radius or radii.
For this purpose the tool holder is adjustably mounted upon a carrier arranged
to oscillate about a horizontal axis and over a work holder carried by a suit-
able table or support that is capable of being adjusted vertically and hori-
zontally.
According to one construction the oscillating carrier is in the form of an
inverted stirrup shaped yoke the side members of which are journalled at their
lower ends to a pair of brackets or bearings projecting from the machine, and
the top cross member of which is connected by a link to a slide that is capable
of being reciprocated in a transverse direction upon the bed of the machine
by any suitable means, the arrangement being such that when the slide is in
action the yoke is caused to oscillate about a horizontal axis. The tool holder
is a slide vertically adjustable in a head or carrier fixed to the top member of
the yoke so that it can be adjusted about an axis at right angles to the said
top member. Below the yoke is a table or support that is capable of being
adjusted both vertically and longitudinally across the front of the machine, and
is provided with a work holder or chuck capable of being moved in a transverse
direction below the tool holder. As will be obvious, the yoke can be oscillated
by various means other than those above described.
A shaping machine constructed as described is specially suitable for use in
producing the high speed curved cutters employed in baluster lathes and other
machines for shaping wood and other materials. It is also suitable for pro-
ducing various kinds of curved work in engineering works and can be readily
adapted or altered, when desired, for producing flat or straight work.
Dated this
day of
189.
For the Applicant,
W. LLOYD WISE,
46, Lincoln's Inn Fields, London, W.C.,
Chartered Patent Agent.

page_text: Eastern Street, in the County of London, but now of 85, Burnt Ash Hill, Lee,
in the County of Kent, 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 has reference to a construction of metal shaping machine
designed to enable the cutting tool to oscillate about an axis for the production
of curved work of any desired radius or radii.
For this purpose the tool holder is adjustably mounted-upon a carrier arranged
to oscillate about a horizontal axis and over a work holder carried by a suit-
able table or support that is capable of being adjusted vertically and hori-
zontally.
Figs. 1 and 2 of the accompanying illustrative drawings show one construction
of such a metal shaping machine, Fig. 1 being a front elevation thereof, and
Fig. 2 a side elevation.
According to this construction, the oscillating carrier is in the form of an
inverted stirrup shaped yoke a the side members of which are journalled at
their lower ends by means of pins or trunnions b to a pair of brackets or bear-
ings cc projecting from the frame d of the machine, and the top cross member
of which is connected by a link e to a slide f that is capable of being recipro-
cated in a transverse direction upon the bed g of the machine by any known or
suitable means from a driving wheel h, the arrangement being such that when
the slide is in action, the yoke is caused to oscillate about a horizontal axis.
The tool holder is a slide k that is vertically adjustable, as by means of a screw 1,
on a head or carrier m which is fixed to the top cross member of the yoke a in
such a manner that it can be turned or adjusted about a transverse axis at right
angles to the length of the said top cross member, so that the cutting tool n
carried by the holder k can be inclined to either side of the vertical when desired.
Below the yoke a is a table or support p that is capable of being adjusted both
vertically and longitudinally across the front of the machine, and is provided
with a work holder or chuck y capable of being moved in a transverse direction
below the tool holder k. The table or support p may be adjusted vertically by
means of a screw (not shown) in a headstock ŕ to which it can be fixed, after
adjustment, by a clamping screw s. The headstock r is supported by a carrier t
across the face of which it can be adjusted by a horizontal screw u that is
mounted in bearings in the said carrier and is provided with a hand wheel v
by which the said headstock can be adjusted by hand. The end portion of the
said screw is also provided with a toothed wheel w by which the said head-
stock can be moved automatically and intermittently for imparting a trans-
verse feed to the work holder q and the work carried thereby. This feed may
be effected by a rod y that is reciprocated by a rotary crank disc z from the
driving shaft of the machine and is jointed to an arm 1 which is mounted to
oscillate on the end portion of the screw u and is provided with a pawl 2 that
engages the toothed wheel w when moved in one direction and slips over the
said wheel when moved in the opposite direction. The yoke a is or may be
cushioned on its idle backward stroke by coiled springs 3 encircling rods 4 that
are jointed to the yoke and work loosely through guide plates 5 on the frame
of the machine, each spring bearing at one end against the corresponding guide
plate 5 and at the other end against a collar 6 on its rod 4.
As will be obvious, the tool carrier with tool holder can be oscillated by
various means other than those above mentioned.
A shaping machine constructed as hereinbefore described is specially suitable
for use in producing the high speed curved cutters employed in baluster lathes
and other machines for shaping wood and other materials. It is also suitable
for producing various kinds of curved work in engineering establishments and
can be readily adapted or altered, when desired, for producing flat or straight
work.

page_text: Having now particularly described and ascertained the nature of the said
invention and in what manner the same is to be performed, we declare that what
we claim is :-
1. A metal shaping machine wherein the tool holder is adjustably mounted
upon a carrier arranged to oscillate about a horizontal axis and over a work
holder carried by a table or support capable of being adjusted vertically and hori-
zontally, so that curved work of any desired radius or radii can be readily
produced substantially as described.
2. A metal shaping machine of the kind referred to in the preceding claim
wherein the oscillating carrier for the tool holder is in the form of a stirrup
shaped yoke mounted to oscillate about a horizontal axis and connected by a link
to a slide arranged to be reciprocated upon the bed of the machine, the tool
holder being adjustable upon a head or carrier that can be adjusted about an
axis transverse to the length of the top cross member of the yoke, and the
table or support carrying the work holder being capable of being moved ver-
tically and also longitudinally across the front of the machine, substantially as
described.
3. In a metal shaping machine, a tool holder, a carrier, a work holder or
chuck, a table or support, and reciprocating means, the whole constructed.
arranged and operating substantially as hereinbefore described with reference
to and shown in the drawings annexed.