AN IMPROVED MACHINE FOR SHAPING ARTICLES OF WOOD OR SIMILAR MATERIAL
Year: 1885

page_text: I, CHARLES RYAN Timber Merchant of 143 Shields Road Glasgow, Lanarshire,
do hereby declare the nature of my invention for "AN IMPROVED MACHINE FOR
SHAPING ARTICLES OF WOOD OR SIMILAR MATERIAL "
to be as follows:-
My invention consists of a novel combination of parts forming an improved
machine for shaping such articles as wooden chair bottoms.
The improved machine comprises two side frames suitably bound together
between which two horizontal transverse guide frames are fitted, the one above
the other. These transverse guide frames are connected together and are fitted to
reciprocate longitudinally in guides in the side frames, the reciprocating motion
being imparted to them by means of a crank and connecting rod or similar devices.
Upon each of the transverse guide frames is fitted a table capable of sliding
transversely in suitable guides and which is gradually moved along the guides by
means of a screw passing through a fixed nut in the bottom of the table. Upon
the lower table is placed a finished pattern or specimen of an article, such as a
chair bottom, and on the upper table is placed the slab or piece of wood or other
material whose surface is to be shaped to the contour of the pattern. Over the
lower table is a transverse shaft having on it a disc or roller which rests on the
surface of the pattern while the pattern is traversed under it longitudinally by
the reciprocation of the frames and transversely by the action of the screw which
is turned partially round at each movement of the frame by a feeding device of any
well known kind.
Over the upper table and vertically over the lower shaft is a rotating spindle on
which is a boss carrying a series of cutters, and this upper spindle is connected to
the lower shaft through the carrying bearings or otherwise so that it rises and falls
with any rising and falling movement of the lower spindle due to the passage of
the disc or roller on it over the curved surface of the pattern. By that means the
cutting tool on the upper spindle follows the movement of the lower disc and cuts
Price 8d71

page_text: to a greater or less depth into the slab on the upper table according to the shape of
the pattern on the lower table and thereby such pattern is reproduced.
The cutter acts upon a narrow strip or line at each longitudinal traverse of the
carrying frames and by the feeding action of the screws, which are operated in
unison, a fresh strip is brought under the cutters at each traverse, such strip being
cut to the shape of the corresponding strip or line on the pattern over which the
disc runs below.
The rotating cutter shaft and the crank shaft operating the guide frames may be
suitably connected and driven by belts and pulleys or other driving gear.
D
.'
THE 1

page_text: An Improved Machine for Shaping Articles of Wood or
similar Material.
I, CHARLES RYAN, of 143 Shields, Road, Glasgow, Lanarkshire, Timber
Merchant, 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:-
My invention consists of a novel combination of parts forming an improved
machine for shaping such wooden articles as " Windsor chair bottoms, malt
shovels and the like.
33
As represented in horizontal section at figure 1, in sectional side elevation at
figure 2, and in cross section at figure 3 of the accompanying illustrated diagrams
the improved machine constituting my invention comprises two side frames A A
which are suitably bound together by end pieces B B, and between which two
horizontal guide frames C C¹ are fitted, the one above the other. These transverse
guide frames C C¹ are connected together and are fitted to reciprocate longi-
tudinally in guides c c¹ or the side frames A. A, the reciprocating motion being
imparted to them by means of a crank D and connecting rod E or by similar
devices Upon each of the transverse guide frames C C is fitted a table F, F¹
which is capable of sliding transversely in suitable guides and which is gradually
moved along the guides by means of a screw f, f¹ to each, passing through a fixed
nut in the table-Upon the lower table F is placed a finished pattern of an article
such as "windsor" chair bottom of which a counterpart is to be produced, and
upon the upper table F is fixed the slab or piece of wood or other material whose
surface is to be shaped to the contour of the pattern. Over the lower table is a
transverse shaft G having on it a disc or roller g which rests on the surface of the
pattern while the pattern is traversed under it longitudinally by the reciprocation
of the frames C, C¹ and transversely by the action of the screw f, f¹, which is turned
partially round at each traverse of the frame by a suspended finger acting on a
star wheel h¹ on each screw shaft f, f¹ or by any other feeding device of well
known kind. Over the upper table F¹ and vertically over the lower shaft G is a
rotating spindle I on which is a boss carrying a series of cutters i, and this upper
spindle is connected to the lower shaft through the carrying bearings J or other-
wise so that it rises and falls with any corresponding movement of the lower shaft
due to the passage of the disc or roller g on it over the curved or irregular surface
of the pattern. By that means the cutting tool i on the upper spindle I follows
the movement of the lower disc G and cuts to a greater or less depth into the slab
on the upper table according to the shape of the pattern on the lower table and
thereby such pattern is reproduced. The cutter i acts upon a narrow strip or line
at each longitudinal traverse of the carrying frames C C¹, and by the feeding action
of the screws f, f¹, which are operated in unison a fresh strip is brought under the
cutters at each traverse, such strip being cut to the shape of the corresponding

page_text: strip or line on the pattern over which the disc G runs below-The rotating cutter
shaft. I is driven by a belt K and pulleys k k and the crank shaft may also be
driven as shown by a belt L and pulley l, or by other driving gear..
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:
The combination of parts constituting the improved machine for shaping or
reproducing windsor chair bottoms, malt shovels and similar articles, substantially
as herein before described with reference to the drawings annexed.
Dated thin lfth day of M.- 1000R