Improved Appliance for Attaching and Releasing Objects when Held at a Tension.
Year: 1887

page_text: Date of Application, 14th Mar., 1887
Complete Left, 14th Dec., 1887
Complete Accepted, 20th Jan., 1888
Improved Appliance for Attaching and Releasing Objects when
Held at a Tension.
STANLEY BETJEMANN Musician 21 Ingersoll Road Uxbridge Road London W. do
hereby declare the nature of this invention to be as follows:-
Between the open ends of a semicircular or three sided (buckle like) frame, a short.
tongue turns on pivots, which are on lugs or ears extending from the sides of the
tongue-The tongue is curved into about two thirds of a circle-the centre of which
is nearly identical with the pivots on which it turns; the end of the tongue is some-
what extended, and points towards the cross bar of the frame; the other end of the
tongue is continued into a rather long tail or finger, with which to move it.
To attach the appliance to-say-the link of a chain, the finger is turned flat back
to the cross bar the link is placed in the tongue, the finger is turned flat back the
reverse way, which curls the tongue round the link and holds it securely, as the
draught part of the tongue is inside the centre of the pivots and the finger pulls
against the link on the opposite side, to where the tongue holds it.
To release the finger is turned flat back to the cross bar, and the link is thrown out.
March 14th 1887

page_text: An Improved Appliance for Attaching and Releasing Objects when
Held at a Tension.
STANLEY BETJEMANN 21 Ingersoll Road, Uxbridge Road London W. Musician
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 my invention is to provide a means of holding objects securely when
at a tension or when slack or loose, with an instantaneous means of releasing them
(when at a tension) without bringing them closer together, as is required with hooks,
buckles, buttons &c.
The invention is applicable to a great many uses, such as for harness, for boats for
railway and other carriages, for hoists for dog slips &c.-by adapting the size and
attaching ends to the form necessary for the purpose required, the attaching and
releasing part (which constitutes the invention) remaining the same.
The appliance consists of a short cylindrical piece of material-preferably metal-
turning freely on pins or studs between the short arms of an attaching piece, the
opposite end to which arms is made of any form necessary for the purpose for which
it is to be used.
The cylindrical piece has the middle part a longitudinal slotted chamber open to
the surface for about three fourths of its length, and with a transverse slit cut about
three fourths through the cylinder thus making a seat for a I shaped piece of material
preferably metal having the ends in the form of studs or pins to pass into the
slotted chamber and the neck to pass round in the transverse slit, the shoulders of this
piece fitting closely to the outside of the cylinder to prevent any lateral motion; the
other end of this piece is the second attaching piece and is to be made in any
requisite form.
It is obvious that when the I piece is placed in the slotted chamber and pulled in a
direction away from the opening it will hold, and that when the cylinder is rotated on
the pins in the short arms of the other attaching piece till the opening comes opposite
the tension on the pins of the I piece it will slip out, and the attaching ends be
completely separated.
To rotate the cylinder, I attach an arm or finger-of any convenient form-on the
part that is not cut through by the transverse slit, the arm projecting in a direction
opposite to the opening of the slotted chamber. When holding this arm will be in
the direction of the tension on the I piece. In order to release or slip, the arm is
turned back from the tension on the pins of the I piece that they may slip out.
To attach, the studs or pins are passed into the opening of the slotted chamber,
and the arm turned down to rotate the cylinder and turn the opening away from the
tension on the pins.
To cause the tension to tend to keep the opening away from the direction of the

page_text: tension, I place the studs on the ends of the cylinder, slightly away from the centre at
right angles to the tension point in the chainber, which causes the tension to pull
the arm more closely to the attaching piece, and hold securely till the arm is forcibly
turned back; catches of any suitable form may also be used to prevent the arm from
being turned back till it is desired to release.
The construction may be varied by making the cylinder with a transverse slot at
each end, leaving a sort of tongue in the middle to take into a slot, shaped to fit it, in
the attaching piece, instead of astride the neck of the I piece; the action being exactly
the same.
The outside of the cylinder may also vary in form where it is not forked by the
transverse slit, without departing from my invention.
DESCRIPTION OF THE DRAWINGS.
Fig. 1 is a view of my invention as in a state of tension, the arrows showing the
direction of the pull. A. A. is the cylindrical part turning on the pins B. B. in the
arms C. C. of the attaching piece D. E. is the second attaching piece, the neck F.
H. is the arm which
passing through the transverse slit G in the cylinder A. A.
turns round the cylinder to release the attaching piece E.
Figs. 2. 3. 4. show the three pieces (detached) of which the invention consists the
same letters showing the same parts. Ì. is the chamber in the cylinder A. B. B the
pins on which the cylinder revolves in the arms C. C. of the attaching piece D.
(Fig. 4.) K. K. are the pins or studs on the attaching piece E. Fig. 5. shows the
cylinder A. with a portion removed to show the parts in process of releasing the same
letters referring to the same parts in all cases.
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 as my invention is
The entire construction of the attaching and releasing parts as above described,
consisting of the slotted chamber in the cylinder turning on studs or pins and holding
and releasing an attaching piece, substantially as shown and described by the
accompanying drawings and specification.
Dated this Thirteenth day of December 1887.
STANLEY BETJEMANN.