Improvements in Machines for Setting Lacing Hooks.
Year: 1895

page_text: Date of Application, 9th Apr., 1895
Complete Specification Left, 9th Jan., 1896-Accepted, 15th Feb.,
1896
PROVISIONAL SPECIFICATION.
Improvements in Machines for Setting Lacing Hooks.
We, MARSHALL HENRY PEARSON of 16 Blue Boar Lane Leicester, Engineer,
and CHARLES BENNION, also of 16 Blue Boar Lane, Leicester, Engineer, do
hereby declare the nature of this invention to be as follows:-
The object of our invention is to construct a die for setting or clenching lacing
hooks, studs &c. to automatically receive the hooks &c. from a shoot or raceway,
and to withstand the strain placed upon it during the clenching operation.
Hitherto the failing point of these dies has been the flange which carries the
hooks &c., the thickness of which is limited by the width of the mouths of the
hooks, and in many cases is necessarily so thin that it breaks during the action of
clenching a hook.
According to our invention we employ what we term a thrust block, which
supports the said flange (either on one or both sides of the hook) at the time of
clenching, and which also assists in placing the hook in the correct position for
clenching.
The thrust block may be formed in the main part of the die, or may be a
separate piece of metal connected to the lever or other moving part which actuates
the die. In either of these cases the flange is kept a sufficient distance from the
thrust block to allow the hooks to pass between them except at the time of
clenching when they are pressed firmly together.
For some kinds of hooks the thrust block may be pivoted to the main part of
the die, held in position by a spring and so arranged that the hooks in leaving the
die may push the thrust block aside.
The flange may be formed in the die or may be a separate piece of metal.
Improvements in Machines for setting Lacing
UVAS.
MARSHALL HENRY PEARSON, of 16, Blue Boar Lane, Leicester, Engineer,
and CHARLES BENNION, of 16, Blue Boar Lane, Leicester, Engineer, 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 our invention is to construct a die for setting or clenching lacing
hooks, studs &c.; to automatically receive the hooks &c. from a shoot or raceway
and to withstand the strain placed upon it during the clenching operation.

page_text: In the accompanying drawings
Figs. 1. 2 & 3. are views of one form of die, Fig. 1. being a section through Y. Y.
(Fig. 3.), Fig. 2. a side elevation and Fig. 3. a section through X. X. (Fig. 1.).
Figs. 4. 5 & 6. are views of a second form of die, Fig. 4 being a front elevation,
Fig. 5. a side elevation, & Fig. 6. a plan partly in section.
Figs. 7. 8. 9. 10 & 11. are views of a third form of die: Fig. 7. being a plan,
Fig. 8. a rear elevation with part removed. Fig. 9. a front elevation. Fig. 10. a
side elevation & Fig. 11. a complete rear elevation.
Hitherto the failing point in dies of this kind has been the flange A. A¹ A³
which carries the hooks, the thickness of which is limited by the width of the
mouths of the hooks, and in many cases is necessarily so thin that it breaks when
a hook is being clenched.
According to our invention we employ what we term a thrust block which
supports the said flange (either upon one side, as in Figs. 7. to 11. or upon both
sides, as in Figs. 1. to 6.) at the time of clenching and also assists in placing the
hook in the correct positition for clenching.
In the form as shown by Figs. 1. 2 & 3. the thrust block B. is the main part of
the die, and the hook carrying flange A. is movably attached thereto by screws C.
passing through slots C. The thrust block is provided with a recess D. formed to
receive the head of the hook F. and also with a yielding stop E. bevelled at its
lower end and pressed down by spring G. with sufficient force to prevent the hooks
from falling out of the die but which will yield and allow the hooks to leave the
die when the material, into which the hook has been set, is moved.
In order that the hooks may pass freely from the source of supply to the
correct position under the clenching die and thence from the machine, the
flange A. normally occupies the position, in relation to the thrust block, as shown,
but when, during the clenching operation, the flange meets with resistance, it is
pressed close to the thrust block, which supports it.
The thrust block B' in the form of die shown by Figs. 4. 5 & 6. is separate
from the main part of the die, and is hinged or otherwise connected to the lever,
or other moving part, which actuates the die.
As in the previously mentioned case, the thrust block and hook carrying flange
are normally separated, but are pressed together during the clenching operation.
For setting hooks &c. which are fairly wide mouthed, thus permitting the use of
a thicker hook carrying flange, we find it sufficient to support the flange on one
side of the hook only and in this case prefer to construct the die as shown in
Figs. 7. to 11. where the thrust block B is hinged to the main part of the die
at H. and is held in position by the spring J.
The hook carring flange A is formed to leave a space between it and the
thrust block as shown at K. so that it forms no obstruction to the thrust block
being easily moved out of position by the hooks when they are leaving the die,
but, during the clenching operation it is pressed up to the thrust block.
In the forms shown by Figs. 1. to 6. the stops E. El and the recesses D. D'
assist in placing the hook in the correct position for clenching, as also does the
thrust block B in the form shown by Figs. 7 to 11.
Either form of die may be formed in the clenching plunger &c. of the hook
setting machine as in Figs. 1. to 6. or for attachment thereto as in Figs. 7. to 11.
and will automatically receive hooks from a shoot or raceway formed by a con-
tinuation of the book carrying flange &c. which may be supplied with hooks from
a box or hopper by any suitable means.
Having now particularly described and ascertained the nature of our said inven-
tion and in what manner the same is to be performed, we declare that what we
claim is :-
:-
In a machine for setting lacing hooks, studs &c. the employment of a clenching
die provided with means therein termed a thrust block) for sunnporting the hook

page_text: carrying flange on one or both sides of the hook during the clenching operation.
such means being formed so as not to obstruct the free passage of the hooks to or
from the die, except at the time of clenching.
Dated this 8th day of January 1896.
MARSHALL H. PEARSON.
CHAS. BENNION.