Improvements in Combined Driving Tangs and Flaps, for Use in Fixing Wooden Handles to Utensils or Implements, for the Purpose of Reducing Weight and Facilitating Manufacture..
Year: 1895

page_text: Date of Application, 2nd Nov., 1895-Accepted, 7th Dec., 1895
COMPLETE SPECIFICATION.
Improvements in Combined Driving Tangs and Flaps, for Use in
Fixing Wooden Handles to Utensils or Implements, for the
Purpose of Reducing Weight and Facilitating Manufacture..
I, JOHN WILLIAM SANKEY, of the Firm of Joseph Sankey and Sons, of Albert
Street Works, Bilston in the County of Stafford, Ironplate Workers and Stampers,
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 --
Combined driving tangs and flaps for use for the purpose stated in the title, have
heretofore been made either by forging or as malleable castings.
Now, the object of this invention is to make each such article entirely in one
piece of sheet metal by cutting it out in the form of a blank and then pressing or
stamping it into a shape which adapts it for the purpose required and gives it also
the necessary strength. The advantange is thus secured of considerable
both of material and in cost of manufacture.
economy
The above object is accomplished, according to this invention, by first cutting
out a blank in sheet metal having a part at one end of the outline shape of the
required flap, the remainder of the blank consisting of a part which tapers to a
point at its outer end, and which is to form the tang; and then pressing or stamping
into the blank a hollow which extends from, or from near, the outer end of the
portion to form the tang right into the inner face of the portion to form the flap
where it, preferably, widens out and forms a frog, and by the same operation forming
the flap into the shape which adapts it to bed properly against the surface of the
utensil or implement, and setting it at the required inclination with the tang. The
flap being provided with the usual rivet holes for the purpose of its attachment to-
the utensil or implement, the combined tang and flap is complete and ready for use.
It is much lighter than such articles as heretofore constructed, and is made at
much less cost in labour.
It is preferred to form the portion of the hollow which extends along the tang
as a flute which widens out towards the inner end and to leave flat margins, one on
each side, for the greater length of the tang from the flap end, which expose edges
which cut or embed themselves somewhat into the wood as the handle is driven onto
the tang; but, if preferred, two or more flutes may be formed along the tang,
running side by side.
A combined tang and flap, constructed according to this invention, is shewn by
the drawings herewith, of which Figure 1 is a longitudinal section, Figure 2 a plan
of the upper face, Figure 3 a section taken on line az of Figure 1, looking towards
the flap, and Figure 4 a section taken on line y y of Figure 1, looking towards the
outer end.
The flap A has a frog a impressed therein, and the tang B has a flute b impressed
therein, and the flute b runs into the frog a, as shewn. A flat margin d is left on
each side of the flute 6 the edge of which cuts or embeds itself into the wood as
the handle is driven onto the tang.
The impressing of the flute in the tang results in the formation of a hollow
rib c which adds the required strength, and the continuation of such flute into the
frog a of the flap adds the required strength to the juncture of the tang with
the flap, and the formation of the frog lends considerable strength to the flap. If

page_text: the frog is dispensed with, and the flute b, or two or more of such, simply continued
into the surface of the flap the juncture of the tang with the flap will still be
considerably strengthened thereby, and some strength will be thereby imparted also
to the flap; but it is much preferred to form the frog in the flap, and to run the
flute, or two or more of such, thereinto. e are the usual holes through the flap for
the fixing rivets.
Having now particularly described and ascertained the nature of my said inven-
tion, and in what manner the same is to be performed, I declare that what I
claim is :-
1. A combined driving tang and flap for use in fixing a wooden handle to a utensil
or implement, formed in one piece of sheet metal with a channel or channels running
lengthways of the taug and extending into the surface of the flap, substantially as
described.
2. A combined driving tang and flap for use in fixing a wooden handle to a
utensil or implement, formed in one piece of sheet metal with a channel or channels
running lengthways of the tang and extending into the surface of the flap and with
flat margins along the sides of the tang of which the edges will cut or embed
themselves somewhat into the wood of the handle, substantially as described.
3. A combined driving tang and flap for use in fixing a wooden handle to a
utensil or implement, formed in one piece of sheet metal with a channel or channels
running lengthways of the tang and extending into a frog or recess formed in the
flap, substantially as described and shewn (as with a single channel only) by the
drawings herewith.
Dated this 1st day of November 1895.
STEPHEN WATKINS,
Wolverhampton, Agent for the Applicant.