New or Improved Tool or Appliance for Making Buckle Frames, Links, Dees, and the like.
Year: 1891

page_text: Date of Application, 26th Sept., 1891
Complete Specification Left, 24th June, 1892-Accepted, 30th July, 1892
PROVISIONAL SPECIFICATION.
New or Improved Tool or Appliance for Making Buckle Frames,
Links, Dees, and the like.
I, JOHN BLAKEMORE, of 43 Oxford Street, Walsall Staffordshire, Machinist,
do hereby declare the nature of this invention to be as follows:—
This invention consists in the hereindescribed new or improved tool or appliance
for shaping the frames of harness and other buckles, square, oblong and other
links for harness and for chains and other purposes, D-shaped links and other like
articles.
An ordinary way of making the said buckle frames and links is to bend by hand
tools a piece of iron wire roughly to the shape of the required buckle frame or
link and to weld the ends of the same together and then finish the article to the
exact shape and size by hammering. The finishing of the buckle frame or link to
the exact shape and size by hammering is a slow process and comparatively
expensive and requires a skilled workman; but by means of my new or improved
apparatus which I will now describe, this process is rendered very simple and links
and buckle frames are very quickly shaped all exactly to the required shape and size.
I will describe my invention as applied to the shaping of the oblong rectangular
frames of what are known as gear buckles.
I provide a suitable base carrying four toggle pieces radiating from a common
centre and corresponding with the four sides of the required buckle frame. The
outer ends of these toggle pieces are jointed to dogs which are bolted or otherwise
fixed to the base and by preference made adjustable by set screws so that the
distance which the inner ends of the toggles are apart can be adjusted to suit
buckle frames of different sizes. The said toggles can be turned about their outer
jointed ends and raised from the plate or base. As the said toggles are raised
their inner ends recede from the centre and from the ends of the other toggles and
when the toggles are depressed their inner ends come nearer together and towards
the centre of the plate or base. At the centre of the said four toggles, that is,
between their inner ends, I provide a mandril corresponding in cross section with
the shape of the inside of the buckle frame. This mandril passes through and
can be moved up and down in a boss in the base on whic. boss the inner ends of the
toggles rest. The inner end of each toggle has a projecting lip.
The tool or appliance above described is used as follows. The roughly shaped
buckle frame is placed (having previously been heated if required) upon the
mandril and the toggles are raised to admit the said buckle frame between them.
The toggles and the mandril are then depressed by hammering (or by other
means) thus closing the toggles against the four sides of the buckle frame and
squeezing the latter against the mandril so as to conform with the shape thereof.
The said buckle frame is kept in place between the ends of the toggles by resting
on the said lips of the latter.
To remove the shaped buckle frame from the toggles it is only necessary to
knock up the mandril which has the effect of raising the toggles when they are
immediately free from the buckle frame which can then be removed and another
buckle frame similarly operated upon.
'I may use more or fewer of the said toggles according to the shape of the article
which is required to be formed the inner ends of the toggles being grooved or
shaped to correspond with the form of the link or buckle frame required.
2013
a
1001

page_text: COMPLETE SPECIFICATION.
New or Improved Tool or Appliance for Making Buckle Frames,
Links, Dees, and the like.
I, JOHN BLAKEMORE, of 43, Oxford Street, Walsall, Staffordshire, Machinist,
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 the hereindescribed new or improved tool or appliance
for shaping the frames of harness and other buckles, square, oblong and other
links for harness and for chains and other purposes D-shaped links and other like
articles.
An ordinary way of making the said buckle frames and links is to bend by hand
tools a piece of iron wire roughly to the shape of the required buckle frame or link
and to weld the ends of the same together and then finish the article to the exact
shape and size by hammering. The finishing of the buckle frame or link to the
exact shape and size by hammering is a slow process and comparatively expensive
and requires a skilled workman; but by means of my new or improved apparatus
which will now describe this process is rendered very simple and links and
buckle frames are very quickly shaped all exactly to the required shape and size.
On the accompanying drawings
Figure 1 represents an ordinary oblong rectangular frame for a gear buckle ;
Figures 2 and 3 are sectional elevations of my said improved tool or appliance
as constructed for operating on frames or links like that shewn by Figure 1
these views illustrating the operation of the said tool or appliance as hereinafter
described;
Fig. 4 is a plan of the same;
Figure 5 shews one of the toggles of the same separately in elevation and in plan;
Figure 6 shews how my said invention is applied to the manufacture of dees of
the ordinary kind as shown for instance by Figure 7;
Figure 8 illustrates in sectional elevation and in plan another way of applying
my invention to the manufacture of the said dees; and
Fig. 9 represents in plan a further modification of my invention applied to dee
or three sided articles.
I will first describe my invention as applied to the shaping of the oblong
rectangular frames (such as shewn by Fig. 1) of what are known as gear buckles,
and I will refer more particularly to Figs. 1, 2, 3, 4 and 5 in which the same letters
of reference indicate the same parts in all the figures.
I provide a suitable base A carrying four toggle pieces marked respec-
tively B' B B B radiating from a common centre as shewn in Fig. 4 and
corresponding with the four sides of the required buckle frame C. The outer
ends of these toggle pieces are jointed to dogs D which by the bolts e are bolted
(or they may be otherwise fixed) to the base A each dog fitting in a corresponding
slot a¹ therein, and each dog is by preference made adjustable by the set screws f¨lf"
so that the distance which the inner ends of the toggles are apart can be
adjusted to suit buckle frames of different sizes and be set perfectly in line with the
opposite toggle. The said toggles can be turned about their outer jointed ends bi
and be raised from the plate or base, as .shewn in Figure 2, or be turned down so
that their inner ends rest as shewn in Figure 3 upon a central boss g' which is
formed on the base plate A. When the toggles B B B B are raised as shewn
in Fig. 2 their inner ends 6' recede from the centre and from the ends of the other
toggles and when the toggles are depressed as shewn in Figs. 1 and 4 their inner
ends & come nearer together and towards the centre of the plate or base A. At
the centre of the said four toggles, that is, between their inner ends 6³, I provide
an ordinary mandril H corresponding in cross section with the shape of the inside
of the buckle frame C. This mandril passes through or into a hole g³ in the boss y¹

page_text: and can be moved up and down therein. The inner end of each toggle has a
projecting lip bs for the purpose hereinafter described.
The tool or appliance above referred to is used as follows:-The roughly shaped
buckle frame C is placed (having previously been heated if required) upon the
ordinary mandril H and the latter with the buckle frame upon it is held in position
(as shewn in Fig. 2) between the inner ends of the toggles which latter have been
raised to admit the said buckle frame between them. This raising of the toggles is
done automatically by the springs fixed respectively to the underside of the
toggles and in order to ensure the inner ends of the toggles all rising to the same
level there is a set screw j in the back of each dog which form stops for the outer
ends of the toggles to bear against when in their highest position (see Fig. 2).
The buckle frame is kept in place between the ends of the toggles by resting on
the lips of the latter. The toggles B' B' B B and the mandril H are then
depressed by hammering the mandril (or by other means) thus closing the toggles
against the four sides of the buckle frame and squeezing the latter against the
mandril as shewn in Figures 3 and 4 to conform with the shape thereof.
To remove the shaped buckle frame C from the toggles it is only necessary to.
knock up or otherwise raise the mandril H which has the effect of raising the
toggles when they are immediately free from the buckle frame which can then be
removed and another buckle frame similarly operated upon.
I apply my invention to the shaping of D-shaped and other links and buckle
frames similarly as above described with reference to the oblong rectangular
link C and I use either more or fewer than four of the said toggles according to
the shape of the article which is required to be formed the inner ends of the
toggles being grooved or shaped to correspond with the form of the link or buckle
frame required. For instance as will be seen by an examination of Fig. 6 the inner
ends of the toggles may be shaped to conform with the shape of the D-shaped
buckle frame or link & shewn by Fig. 7. It will be seen that the inner end
of the toggles B' and B are made narrower than when used for the rectangular
buckle frame C and that the inner end 6 of the toggle B² is hollowed to conform
with the rounded side of the D-shaped link or buckle frame k. Or as shewn in
Fig. 8 two B¹ B only of the toggles may be used and be widened out and hollowed
at their inner ends 6 so as each to conform with one half of the D-shaped link or
buckle frame; or as shewn by Fig. 9 there may be three toggles B¹ B' B³ arranged so
that B' acts upon the straight side of the D-shaped link and the two toggles B' B'
each act upon one half of the rounded side. It will of course be understood that when
three or more than four toggles are used the slots a' in the base A for the dogs D have
to be arranged to suit.
Having now particularly described and ascertained the nature of my said inven-
tion and in what manner the same is to be performed 1 declare that what I
claim is :-
1. In a tool or appliance for shaping buckle frames square oblong and other links
for harness and for chains and other purposes D-shaped links and other like articles,
the employment of toggle levers arranged and operating upon the buckle frame or
other said article upon the mandril in the manner and for the purpose substantially
as hereinbefore set forth and illustrated by the accompanying drawings.
2. The hereindescribed new or improved tool or appliance for shaping the frames
of harness and other buckles square oblong and other links for harness and for
chains and other purposes D-shaped links and other like articles, constructed
arranged and operating in the manner substantially as hereinbefore set forth and
illustrated by the accompanying drawings, whether the said tool or appliance is
made with two three or more toggle levers as herein set forth.
Dated this 22-1 day of June 1900
CHARLES BOSWORTH KETLEY,
Agent for the Applicant.