Improved Manufacture of Metal Scabbards or Sheaths for Swords and other Weapons.
Year: 1889

page_text: Date of Application, 27th Mar., 1889
Complete Specification Left, 25th Nov., 1889-Accepted, 28th Dec., 1889
PROVISIONAL SPECIFICATION.
Improved Manufacture of Metal Scabbards or Sheaths for Swords
and other Weapons.
I, WILHELM LORENZ, of 44 Westendstrasse of Karlsruhe, in the Grand Duchy of
Baden German Empire, Engineer and Manufacturer do hereby declare the nature of
this invention to be as follows:-
My invention has for its object the manufacture of metal scabbards or sheaths
for swords and other weapons without a longitudinal weld or seam, and it consists
in employing for this purpose drawn metal tubes which have the required sectional
form and, if required, longitudinal taper and curvature imparted to them by
rolling.
The cylindrical tubes employed for this purpose may either be open at both
ends as shewn at Fig. 1 of the accompanying drawings, or they may be closed
at the one end as shewn at Fig. 2. In the latter case they may be produced in
the known manner from discs by pressing and drawing.
For manufacturing straight scabbards or sheaths of uniform cross section, the
tube is passed between rolls the profiles of whose grooves correspond to the
required section for the scabbard, that is to say, generally an ovoidal section,
the major axis of which is situated parallel to the axis of the rolls, as shewn at
Fig. 3. The sides of the tube are forced by the pressure of the rolls to apply
themselves against the grooves thereof, so that the cylindrical tube will be trans-
formed into a tube of ovoidal cross section. This transformation can be effected
either at a single operation, or, when the change in configuration becomes considerable,
by two or more consecutive operations with differently formed roll calibres.
If the scabbard or sheath thus produced requires to have a curved form, this
is effected by means of a set of ordinary bending rolls having grooves corre-
sponding to the section of the scabbard, but having the major axis of the curve
placed at right angles to the axis of the rolls, as shewn at Fig. 4, such bending
being also effected either at a single or at two or more consecutive operations.
For the production of tapering scabbards a cylindrical tube is first converted
into a tapering form by means of rolls having grooves of corresponding tapering
form, as shewn at Fig. 5, and the tapering tube thus produced is then passed
through rolls having tapering grooves of a configuration corresponding to the
desired ovoidal configuration of the scabbard's cross section, as shewn at Fig. 6,
so that on the rotation of the rolls they present to the tube a caliber of con-
tinuously decreasing ovoidal configuration, and thus convert the tapering tube to
a tapering scabbard, of the required ovoidal section.
If the scabbard thus produced requires to be curved longitudinally, this is effected
by passing it through bending rolls having correspondingly tapered grooves of
ovidal section the major axis of which is situated at right angles to the axes of
the rolls, as shewn by way of example at Fig. 7.
In this case also, the tapering of the tube and its conversion to the ovidal
section can respectively be effected by a single operation or by several consecutive
operations.
'
If, instead of scabbards of an ovoidal sectional form,, it is desired to produce
then of another sectional form, such as elliptical, rhomboidal &c. the grooves of
the rolls are made of corresponding configuration, as shewn at Figs. 3ª and 4.
During the before described operations both ends of the tube may be left open,
as at Fig. 1, or the one end can be closed as at Fig. 2. In the first named
case the one end, namely the smaller end with tapering scabbards, can be closed
by welding, forging hammering or brazing, and may have a rih formed thereon,
as shewn at Figs. 8 and 9 for sabres and at Figs. 10 and 11 for broad-swords,

page_text: such rib being also subsequently formed in the case of tubes having originally a
closed end. The necessary rings, hooks, or eyes for attachment are secured to
rings brazed on the scabbard.
The rim S of the scabbard can either be produced from a solid rim originally
formed on the tube-blank, or it can be fixed on in any desired manner.
Dated this 27th day of March 1889
ABEL & IMRAY,
Agents for the Applicant.
COMPLETE SPECIFICATION.
Improved Manufacture of Metal Scabbards or Sheaths for Swords
and other Weapons.
I WILHELM LORENZ, of 44 Westendstrasse, of Karlsruhe, in the Grand Duchy of
Baden, German Empire, Engineer and Manufacturer, 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 has for its object the manufacture of metal scabbards or sheaths
for swords and other weapons without a longitudinal weld or seam, and it consists
in employing for this purpose drawn metal tubes which have the required sectional
form and, if required, longitudinal taper and curvature imparted to them by
rolling.
The cylindrical tubes employed for this purpose may either be open at both
ends as shewn at Fig. 1 of the drawings accompanying my Provisional Specifica-
tion, or they may be closed at the one end as shewn at Fig. 2.
In the latter case they may be produced in the known manner from discs by
pressing and drawing.
For manufacturing straight scabbards or sheaths of uniform cross section, the
tube is passed between rolls the profiles of whose grooves correspond to the
required section for the scabbard, that is to say, generally an ovoidal section,
the major axis of which is situated parallel to the axis of the rolls, as shewn at
Fig. 3. The sides of the tube are forced by the pressure of the rolls to apply
themselves against the grooves thereof, so that the cylindrical tube will be trans-
formed into a tube of ovoidal cross section. This transformation can be effected
either at a single operation, or, when the change in configuration becomes con-
siderable, by two or more consecutive operations with differently formed roll
calibers.
If the scabbard or sheath thus produced requires to have a curved form, this
is effected by means of a set of ordinary bending rolls having grooves corre-
sponding to the section of the scabbard, but having the major axis of the curve
placed at right angles to the axis of the rolls as shewn at Fig. 4, such bending
being also effected either at a single or at two or more consecutive operations.
For the production of tapering scabbards a cylindrical tube is first converted
into a tapering form by means of rolls having grooves of corresponding tapering form,
as shewn at Fig. 5, and the tapering tube thus produced is then passed through rolls
having tapering grooves of a configuration corresponding to the desired ovoidal con-
figuration of the scabbard's cross section, as shewn at Fig. 6, so that on the rotation
of the rolls, they present to the tube a caliber of continuously decreasing ovoidal
configuration, and thus convert the tapering tube to a tapering scabbard of the
required ovoidal section.
If the scabbard thus produced requires to be curved longitudinally, this is effected
by passing it through bending rolls having correspondingly tapered grooves of ovoidal
section the major axis of which is situated at right angles to the axes of the rolls as
shewn by way of example at Fig. 7.
In this case also, the tapering of the tube and its conversion to the ovoidal
section can respectively be effected by a single operation or by several consecutive
operations.

page_text: If, instead of scabbards of an ovoidal sectional form, it is desired to produce them
of another sectional form, such as elliptical rhomboidal &c. the grooves of the rolls are
made of corresponding configuration as shewn at Figs. 3 and 4.
During the before described operations, both ends of the tube unay be left open as
at Fig. 1, or the one end can be closed as at Fig. 2. In the first named case the one end,
namely the smaller end with tapering scabbards, can be closed by welding forging,
baminering or brazing, and may have a rib formed thereon, as shewn at Figs. 8 and 9
for sabres and at Figs. 10 and 11 for broad swords, such rib being also subsequently
formed in the case of tubes having originally a closed end.
The necessary rings, hooks, or eyes for attachment are secured to rings brazed on
the scabbard. The rim S of the scabbard can either be produced from a solid rim
originally formed on the tube blank or it can be fixed on in any desired manner.
Having now particularly described and ascertained the nature of this inven-
tion and in what manner the same is to be performed, I declare that what I
claim is
An improved manufacture of metal scabbards or sheaths for swords or other
weapons wherein such scabbards or sheaths are produced without a longitudinal seam
or weld, by first producing tubes of circular cioss section and either cylindrical or
tapering longitudinal sbape, secondly passing such tubes between a pair of rolls having
grooves of ovoidal, elliptical, rhomboidal &c. cross section, and either parallel or
tapering in longitudinal direction, the section being so arranged that the major axis is
parallel to the axis of the rolls, so as to impart a corresponding ovoidal, elliptic or
rhombic &c. sectional forn to the scabbards or sheaths; thirdly, when necessary,
imparting a curvature thereto by passing them through a set of three bending rolls
with correspondingly shaped grooves arranged with the major axis at right angles to
the axes of the rolls, and lastly forming the requisite rib on the closed end by welding,
hammering, pressing or brazing, substantially as herein described.
Dated this 21st day of November 1889.
ADEL & IMRAY,
Agents for the Applicant.