ans for Detachably Securing Hooks to Doors or other Parts of Varying Thickness without Damaging or Disfiguring same.
Year: 1898

page_text: PROVISIONAL SPECIFICATION
Means for Detachably Securing Hooks to Doors or other Parts of
Varying Thickness without Damaging or Disfiguring same.
I, MICHAEL BARTHOLOMEW RYAN, of 71, Maple Avenue, Danbury, Connecticut,
United States of America, Draughtsman, do hereby declare the nature of this
invention to be as follows:
The object of this invention is to provide means whereby hooks can be de-
tachably secured to doors or other parts of varying thickness without injuring
or disfiguring same, and it is principally intended for serving as a means of
attachment for portable exercising apparatus, in which coids are employed and
have to be suitably held, so that the user of the apparatus may exercise his
muscles by pulling or drawing on same; but it will be readily understood that
such means may be employed for other purposes.
In carrying out my invention I construct a clip or cap with a horizontal part to
fit over the top or bottom of the door to which the hook is to be detachably
secured, and a vertical part bent downwards from such horizontal part, so as to
fit against the outer side of the door, while to the opposite end of the horizontal
part a hook to receive the apparatus is pivotted. This hook 18 in the form of
a bell-crank or lever, the hook proper being formed at the outer end of the
horizontal arm, while the lower end of the arm 18 intended to bear against the
inside of the door, and so as to prevent same injuring the latter, the point at
which it bears upon the door is preferably covered with a pad of india rubber,
leather, or other suitable yielding material
A spring bears upon the horizontal arm of the pivotted lever, and tends to force
the vertical arm of same against the inside of the door so as to enable it to
accommodate itself to the thickness of the door, and clip the whole firmly in
position thereon. Such spring 18 preferably made by stamping out part of the
metal to which the lever is pivotted and bending same, and causing it to bear
upon the horizontal arm of the lever so as to act as a blade spring, but it may
be made by twisting such portion of the metal in the form of a spiral spring
acting upon the pivotted lever, or again a separate spring may be employed
The part constituting the clip embracing the top or bottom and the outer side
of the door may be in the form of a plate of metal, or it may be made of wire
bent to the necessary form for effecting this purpose, and acting as a spring upon
the horizontal arm of the pivotted lever.
In the case of employing the hooks for portable exercising apparatus, one of
same will be attached to the top of the door and another to the bottom thereof,
the cords constituting such exercising apparatus being secured to such hooks, so
that the apparatus may be used in the usual manner, while after use the appa-

page_text: ratus may be removed and the hooks detached, without leaving any trace of same
having been affixed to the door
ALLISON BROS,
Agents for the Applicant
Means for Detachably Securing Hooks to Doors or other Parts of
Varying Thickness without Damaging or Disfiguring same.
I, MICHAEL BARTHOLOMEW RYAN, of 71, Maple Avenue, Danbury, Connecticut,
United States of America, Draughtsman, do hereby declare the nature of this
invention, and in what manner the same 18 to be performed, to be particularly
described and ascertained in and by the following statement:
-
The object of this invention is to provide means whereby hooks can be de-
tachably secured to doors or other parts of varying thickness without injung
or disfiguring same, and it is principally intended for serving as a means of
attachment for portable exercising apparatus, in which cords are employed and
have to be suitably held, so that the user of the apparatus may exercise his
muscles by pulling or drawing on same, but it will be readily understood that
such means may be employed for other purposes.
A suitable method of carrying my invention into effect is illustrated in the
accompanying diawings, in which
Fig. 1 is a side elevation of my apparatus, applied to a door, the latter being
shown in section,
Fig 218 a front elevation of such apparatus, and
Fig 3 a plan view of same
In carrying out my invention I construct a clip or cap A with a horizontal
part a to fit over the top or bottom of the door B to which the hook C 18 to be
detachably secured, and a vertical part al bent downwards from such horizontal
part a, so as to fit against the outer side of the door B, while to the opposite end
of the horizontal part a a hook C to receive the exercising or other apparatus 18
pivotted This hook C is in the form of a bell-crank or lever, the hook proper c
being formed at the outer end of the horizontal arm c', while the lower end of the
arm is intended to bear against the inside of the door B, and so as to prevent
same injuring the latter, the point at which it bears upon the door is preferably
covered with a pad of india rubber, leather, or other suitable yielding material c
A spring D may be arranged to bear upon one aim of the pivotted lever C, and
tend to force the vertical arm o³ of same against the inside of the door B so as to
enable it to accommodate itself to the thickness of the door, and clip the whole
firmly in position thereon Such spring D may be made by stamping out part
of the metal to which the lever is pivotted and bending same, and causing it to
bear upon one arm of the lever so as to act as a blade spring, or it may be made
by twisting such portion of the metal in the form of a spiral spring acting upon
the pivotted lever; or again a separate spring may be employed.
The spring however will not always be found to be absolutely necessary as the
Joint of the pivotted lever C might be made sufficiently stiff to ensure the whole
appliance being held in its position on the door when such lever is turned so as
to cause the arm to bear against same, while the pull or the weight of the
apparatus or article to be supported on the hook will further serve to clip the
whole rigidly in such position
In Fig. 1 it will be seen that the pivotted lever is shown in two different posi-

page_text: tions, the full lines indicating the position it occupies when applied to a door of
one thickness, while the broken lines indicate the position it assumes in order to
enable it to accommodate itself to a door of less thickness
The part a, a constituting the clip embracing the top or bottom and the outer
side of the door B may be in the form of a plate of metal as shown, or it may
be made of wire bent to the necessary form for effecting this purpose, and acting
as a spring on one arm of the pivotted lever C
In the case of employing the hooks for portable exercising apparatus, one of
same will be attached to the top of the door and another to the bottom thereof,
the cords constituting such exercising apparatus being secured to such hooks, so
that the apparatus may be used in the usual manner, while after use the appa-
ratus may be removed and the hooks detached, without leaving any trace of same
having been affixed to the door
Having now particularly described and ascertained the nature of my said
invention, and in what manner the same is to be performed, I declare that what
I claim is:-
->
1 The improved means for detachably securing hooks to doors or other paits
consisting in a clip with a horizontal and a vertical part to fit respectively over
the top or bottom and the outside of such door or part and of. a lever pivotted to
the horizontal part and having a hook formed on one am while the end of the
other arm is caused to bear against the inside of the door or part to which the
hook is to be attached, all substantially as and for the purpose specified
2. The improved means for detachably securing hooks to doors or other parts
consisting in a clip with a horizontal and a vertical part to fit respectively over
the top or bottom and the outside of such door or part and of a lever pivotted to
the horizontal part and having a hook formed on one arm while the end of the
other aim is, by means of a sping, caused to bear against the inside of the door
or part to which the hook is to be attached, all substantially as and for the purpose
specified.
Dated the 6th dow of Jul 1808