An Improved Method and Machinery for Bending Tonquin and other Canes.
Year: 1892

page_text: Date of Application, 6th Jan., 1892
ification Left. 4th Aug., 1892-Accepted, 17th Sept., 1892
PROVISIONAL DEE
An Improved Method and Machinery for Bending Tonquin and
other Canes.
I, FRANCES SOPHIA METZ of 49 Tabernacle Street E.C. London, Manu-
cturer of Umbrella and other Sticks, do hereby declare the nature of this invention
be as follows:-
The object of this invention is a method of bending hard canes such as Tonquin
d Partridge canes for instance for the forming of handles to such canes for use
umbrella sticks.
Heretofore such canes suitably softened by gas flames have been bent by hand
he back or outer curve of the bend being supported by a band of steel or the
ke to prevent splitting so far as possible, and it has not heretofore been found
ossible to bend such canes properly by machinery.
This invention consists in a method of bending such canes which is superior to
he hand method heretofore employed in preventing splitting or weakening of the
cane at the bend and in permitting of the bending being performed without such
charring or burning of the bark of the cane more especially on the inside of the
bend, as is found in the usual hand method.
The improved method consists broadly in drawing or pushing the end of the
cane to be bent between a grooved roller and an outer support concentric with the
roller, the roller being heated to a higher temperature than the outer support.
The roller grooved to receive the cane is preferably made up of two disks or
The outer support is preferably not
parts so that the bent cane may be taken out.
curved or grooved but plane throughout its length, preferably consisting of a bent
plate which surrounds the roller for a suitable distance, it being prolonged
tangentially on the entrance side for the better guiding of the main part of
the cane.
+
Before a cane is inserted a flexible band of steel as at present used is fastened
or clipped on the cane to lie along the side of the cane which will be on the outside
This strip may have a projection or nut passing into
of the bent part of the cane.
or through a groove in the outer support to be engaged by the end of an arm or
lever on the central roller, so that the cane is drawn along by this flexible strip in
O uniform movement with the roller. Such arm or lever may serve to turn the
The steel strip may have a link or hook attached to it
roller by hand or power.
so that after the cane is bent with the strip lying around it, this link or hook
may serve to connect the end of the strip to the body thereof and so retain the
cane in the shape given to it prior to its removal from the machine.
3.5
The heat of th
outer or counter support should be less than that of the roller and may be provide
for by gas jets direct or upon the plate on which the machinery aforesaid is mounted
which plate forms the table of the machine.
The roller may be heated by gas flames continually playing thereon or therein
or may be removed and heated on a gas or other stove or heater.
Dd this 6th day of January 1892.
HERBERT & Co.,
HERBERT & Co.,.
Agents to appli
Applicant

page_text: .
COMPLETE SPECIFICATION.
An Improved Method and Machinery for Bending Tonquin and
other Canes.
1
I, FRANCES SOPHIA METZ, of 49 Tabernacle Street, E:C. London,. Manu-
facturer of Umbrella and other Sticks, 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:-
The object of this invention is a method of bending hard canes such as Tonquin
and Partridge canes, for instance for the forming of handles to such canes for use
as umbrella sticks.
Heretofore such canes suitably softened by gas flames have been bent by hand
the back or outer curve of the bend being supported by a band of steel or the like
to prevent splitting so far as possible, and it has not heretofore been found possible
to bend such canes properly by machinery.
This invention consists in a method of bending such canes which is superior to
the hand method heretofore employed in preventing splitting or weakening of the
cane at the bend and in permitting of the bending being performed without such
charring or burning of the bark of the cane more especially on the inside of the
bend, as is found in the usual hand method.
The improved method consists broadly in drawing or pushing the end of the
cane to be bent between a grooved roller and an outer support concentric with the
roller, the roller being heated to a higher temperature than the outer support.
The roller grooved to receive the cane is preferably made up of two disks or
parts so that the bent cane may be taken out. The outer support is preferably
not grooved but plane throughout its length, preferably consisting of a bent
plate which surrounds the roller for a suitable distance, it being prolonged
tangentially on the entrance side for the better guiding of the main part of
the cane.
Before a cane is inserted a flexible band of steel as at present used is fastened
or clipped on the cane to lie along the side of the cane which will be on the outside
of the bent part of the cane. This strip may have a projection or nut passing
into or through a groove in the outer support to be engaged by the end of an arm
or lever on the central roller, so that the cane is drawn along by this flexible
strip in uniform movement with the roller. Such arm or lever may serve to turn
the roller by hand or power. The steel strip may have a link or hook attached
to it so that after the cane is bent with the strip lying around it, this link or
hook may serve to connect the end of the strip to the body thereof and so retain
the cane in the shape given to it prior to its removal from the machine.
"
The roller may be heated by gas flames continually playing thereon or therein,
or may be removed and heated on a gas or other stove or heater. The heat of the
outer or counter support should be less than that of the roller and may be provided
for by gas jets direct or upon the plate on which the machinery aforesaid is mounted,
which plate forms the table of the machine.
"This invention may be carried into practice as shown in the annexed drawing in
which
Fig. 1 is a plan view of the apparatus.
Fig. 2 a'cross section on line A A Fig. 1.
Fig. 3 a cross section on line B B Fig. 1.
Fig. 4 an enlarged detail view in cross section on line A A. Fig. 1.
Fig. 5 an elevation, and Fig. 6 a plan of the supporting steel band which is
fastened on the cane.
From the base plate C projects the pin C' which carries the roller c. This roller
may be lifted from the pin C for heating it, and replaced thereon by help of the
lever i which is connected to form part with the roller and serves also for revolving

page_text: It
it. The roller is cut away along line c¹ and is grooved round the remainder of its
circumference as shown at e (Fig. 4.) where A represents the cane to be bent.
will be seen that the groove is in depth equal to the diameter of the cane and its
base is curved to the radius of the surface of the cane. Concentric with the pin C¹
is the plate a extending around a space slightly longer than a semi-circle. Against
its inner upturned flange a' rests the facing plate f which is removable for purposes
of heating. In vertical section this plate is flat on its inner face and is not curved
to fit the cane. k is a movable gas jet directed to play on the cane just before its
entrance between the roller c and the back plate a. The lever e pivoted to the
bracket and resting on the bracket e lies under the shoulders of the forked
sliding bar e; this bar projects through slots in the base plate C and serves for
lifting the roller c from its bed.
The cane A is first fastened to a double baud of metal
which may be roughened
as at to prevent it slipping on the cane. The collar g' with set screw g³ secures
this band on the cane. The tongue of the lever i is engaged in the loop of the
band
and the cane is drawn around the roller by revolving the lever i.
the cane has been curved round as far as necessary the lever e is raised which lifts
the roller c and allows the cane to be taken off. The turned round end of the cane
is tied to prevent the cane tending to straighten itself while cooling. There may
be one or more spare rollers c to be heated on a stove to replace that used in the
machine when it is too cool. Gas jets may be arranged under the plate C if
desired.
g
g
When
Having now particularly described and ascertained the nature of the said inven-
tion and in what manner the same is to be performed, I declare that what I
claim is:-
g
1. The combination on a base plate C of the grooved roller c with or without
part cut away at c, lever i having a tongue i adapted to engage a band connected
to the cane, and a backing plate f, the whole substantially as and for the purpose
set forth.
2. The combination with the removable roller c of the lever e and fork e for the
Dated this 4th day of August 1892.
HERBERT & Co.,
18, Buckingham Street, Strand, London, W.C., Agents for the Applicant.