An Improved Method of Attaching Scales or Coverings to Spring Knives and Table Cutlery.
Year: 1893

page_text: Date of Application, 23rd Sept., 1893
Complete Specification Left, 22nd June, 1894-Accepted, 1st Sept., 1894
PROVISIONAL SPECIFICATION.
An Improved Method of Attaching Scales or Coverings to Spring
Knives and Table Cutlery.
We, JOHN WINGFIELD, WILLIAM HENRY WINGFIELD, and JOHN HUNT,
trading as Wingfield, Rowbotham & Co. and ARTHUR BENJAMIN BALL, of
82 Tenter Street Sheffield, in the County of York, Cutlery Manufacturers, do hereby
declare the nature of this invention to be as follows:-
To obtain the above improvement, I use a blank of suitable metal, cut to the
required form, at the one end being left a tail of the required length and width.
At the other end, a bolster is attached by a pin or rivet. The bolster being cast,
or fitted with a bevil on the under side at the shoulder section causes a dovetail to
be formed when riveted to the blank; this dovetail or recess being the means of
securing the scale at that one end. At the other end a recess is formed in the scale
into which the tail end of the metal blank is bent round, so as to form a cramp
which secures the said scale entirely without the aid of pins in the said covering or
scale. All kinds of coverings or scales used in the manufacture of cutlery may, by
this means, be attached.
Dated this 21st day of Sentumber 1893
JOHN WINGFIELD.
W. HENRY WINGFIELD.
JOHN HUNT.
ARTHUR BENJAMIN BALL.
An Improved Method of Attaching Scales or Coverings to Spring
Knives and Table Cutlery.
We JOHN WINGFIELD, WILLIAM HENRY WINGFIELD, and JOHN HUNT,
trading as Wingfield, Rowbotham, and Company at Number 82 Tenter Street, and
ARTHUR BENJAMIN BALL, of Number 81 Tavistock Street, off Stead Road, all
of Sheffield, in the County of York, 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 consists in a novel method of attaching the covering or outer
scales of a knife by means of dovetailed bolster pieces, and thus dispensing with the
use of rivets or pins passing through the coverings.
The invention is illustrated in the annexed sheet of drawings in which
Fig. 1, represents a bolster piece.
Fig. 2, a covering grooved for the bolster.
Fig. 3, section through groove and bolster.
Fig. 4, view of finished knife.
We make the holster pieces A, from any suitable metal, and either by casting,
stamping, forging or other process, forming it as shown in Fig. 1, that is with
bevelled edges, tapering from the top side to the underside, and having a hole for
the blade pin to pass through.
We groove the covering B, at each end, the grooves C, being tapered to corre-
spond with and receive the bolsters A, this may be done most expeditiously with a
special cutter.

page_text: In Fig. 3, which is a section through the grooved end of covering and the bolster,
it will be seen that the bevelled or undercut edges of the bolster A, will fit upon
and hold down the covering B, securely upon the inner metal scales, the bolster
being held by the strong pin D, upon which the blade turns.
The finished knife is shown in Fig. 4.
Having now particularly described and ascertained the nature of our said
invention and in what manner the same is to be performed, we declare that what we
claim is :-
:-
The method of securing the scales or coverings of spring knives and 'of other
cutlery, without the use of pins passing through the said coverings, substantially as
hereinbefore described and shown in the drawings.
2. In securing the coverings upon spring knives and table cutlery the use of a
bolster piece A, provided with dovetailed or undercut edges, and rivetted upon the
blade pin, as hereinbefore described and illustrated.
Dated this 1st day of June 1994.
JOHN WINGFIELD.
W. HENRY WINGFIELD.
JOHN HUNT.
ARTHUR BENJAMIN BALL.
JOHN WINGFIELD.
W. HENRY WINGFIELD.
JOHN HUNT.
ARTHUR BENJAMIN BALL.