IMPROVEMENTS IN FASTENERS
Year: 1884

page_text: I GUSTAVE WILHELM MOHRSTADT Mechanical Engineer Greenfield St. Harborne
N' Birmingham do hereby declare the nature of my Invention for IMPROVEMENTS
IN FASTENERS to be as follows:-
This Invention consists of the arrangement of parts for the purpose of fastening
stays; leggings; general wearing apparel; baskets boxes; bridles or other articles.
The fastener is made in large or small sizes from hard or soft metal.
It consists of a flat plate with projecting stud therefrom' this plate will be
heseforward called plate A.
A flat plate with an opening in its horizontal plane in the shape of a keyhole,
this plate will be henseforward called plate B.
Also a 'securer' which is a flat piece of metal provided with a slot henseforward
called slot C, a small portion of the securer is bent over at right angles to form a
projection, henseforward called projection D, the said securer is fixed on plate B to
turn on a pivot and held in possition by a spring henseforward called spring E one
end of which is fastened to plate B the other end of said spring being made to
press on the 'securer near the pivot.'
In using the fastener the projecting stud on plate A is passed into the keyhole-
shaped opening in plate B the securer is then placed in possition so that the slot C
covers the stud on plate A. The securer being held in possition by the spring E.
To unfasten the plate A from plate B it is merely necessary to lift the securer by
means of the projection D, thus releasing the stud from slot C.
Dated this Seventh day of January 1884.

page_text: GUSTAVE WILHELM MOHRSTADT Mechanical Engineer Greenfield Street Harborne
Near Birmingham do hereby declare the nature of my Invention for IMPROVEMENTS
IN FASTENERS 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 of the arrangements of parts for the purpose of fastening
stays, leggings, general wearing apparel, baskets, boxes, bridles, or other articles.
The fasteners are made in large or small sizes from hard or soft metal.
It consists of a flat plate with projecting stud therefrom.
This plate will be henceforward called plate A.
A flat plate with an opening in its horizontal plane in the shape of a keyhole,
this plate will be henceforward called plate B.
Also a securer which is a flat piece of metal provided with a slot henceforward
called slot C.
A small portion of the securer is bent over at right angles to form a projection
henceforward called projection D., the said securer is fixed on plate B to turn on a
pivot, and held in position by a spring henceforward called spring E, one end of
which is fastened to plate B, the other end of said spring being made to press on
the securer next to pivot.
In using the fastener, the projecting stud on plate A. is passed into the keyhole
shaped opening in plate B. the securer is then placed in position so that the slot C
covers the stud on plate A. the securer then being held in position by the spring E.
To unfasten the plate A from plate B it is merely necessary to lift the securer by
means of the projection D, thus releasing the stud from slot Č.
I will now proceed to describe with reference to the accompanying Drawings the
manner in which the fastener is made and used.
Fig. 1 represents a pair of stay busks unfastened or disconnected.
A. A¹ shows the improved fastener one at each end of the busk, the securer is
shewn drawn back on plate A so as to allow the stud to enter the keyhole shaped
opening.
The securer is shewn in the position at A¹ that it occupied when covering
the stud.
B and B shew connecting plates not provided with the improved fastener or
securer.
Fig. 2 represents a pair of stay busks with the plates A² B2 B³ A³ passed over
the studs C. 01. 02. 0³.
The securer is shewn at A' Figure 2 in such a position that the stud is unlocked
ready to lift out of the keyhole shaped opening-the securer is shewn at A³ in a
position that secures or locks the stud C³. The spring E. Fig. 4 continually
bearing against the bottom end of securer retains it in the position as illustrated.
Figs. 3. 4. and 5 shews the improved fastener in detail.
Fig. 3 represents the plate.
F is the keyhole shaped opening.
G. is the slot to receive the projection J on spring E Fig. 4.
H is a small recess to receive the tanged or turned up portion of securing bar
marked M. M'.
Fio. 4 represents two views of the spring E.

page_text: is the projection of up by means of which the Securer is worked on its pivot to
fasten or unfasten the stud C Fig. 8.
M. M. is the tanged or turned up portion of securing bar made to fit in the
recess H, Fig. 3, for the purpose of preventing the securer from going too far back,
when moved or uncovered from the stud.
N. N is the top portion of the slot forming a securing bar that covers over the
neck of the stud to lock or prevent it from getting out of the small part of the
keyhole shaped opening F in plate Fig. 3.
Figures 6 and 7 are views shewing the fastener formed in and on leaf shaped
plates, that would be suitable for fastening ladies, capes, and other such like articles
of dress.
O Fig. 6 represents a leaf shaped plate with a suitable stud fastened to and
projecting from it.
P Fig. 6 represents a leaf shaped plate with a keyhole shaped opening.
A represents in dotted lines the spring E Fig. 4.
A represents in dotted lines the securer Fig. 5 in a position to allow the stud C+
to enter the slot F¹.
Fig. 7 represents the leaf shaped plates O¹ P¹ connected and secured by means of
the spring B and the securer B³.
Fig. 8 represents a section of one half of the busk at Q. R. shewing the shape of
the stud C.
The improved fastener is put together and used in the following manner-
A plate having been provided as represented at Fig. 3. a securer as represented
at Fig. 5, would be fixed to it, by connecting the two parts with a rivet passing
through K Fig. 5 and K¹ Fig. 3.
A spring as represented at Fig. 4 would then be firmly fixed to plate Fig. 3 by
passing J into G Fig. 3.
The fastener would then be complete and ready for use.
In some cases the fastener may be used without a spring.
When using them as stay or corset fasteners it would only be necessary to put
one at the top of the busk and one at the bottom as represented at A. A. Fig. 1,
a suitable number of plates without my improvements could then be fastened to
the busk as shewn at B. and B¹.
The half with the plates on it would then be passed or placed on to the half
containing the studs in the usual manner.
The studs when entering the plates would press against the securers near the
pivots and thus draw them into the position covering the said studs as represented
at A¹ Fig. 1 and A³ Fig. 2.
The securing bars N. N. in the securer falling over, and fitting on to the necks of
the studs as represented at A³ Fig. 2 would be kept there by the pressure of the
springs bearing against the bottom of the securer as represented.
In some cases I can use the securer without the spring, in such cases the stud
when having a tendency to get out of the opening, would press against the concave
part of the securing bar and so prevent the said securer from moving off the stud.
To disconnect the busk it would mercly be necessary to move the securer
at the top and bottom of busk into the position at A Fig. 1, by means of the lip
or projection L. L' on securer, the spring would curve into the shape thereon
represented at A Fig. 1.
The cloak fasteners as represented at Fig. 6 and 7 are used in a similar manner,
namely, by operating the securer on its pivot as hereinbefore described.
The fastener can be used for a variety of purposes such as leggings, general
wearing apparel, baskets, boxes, bridles, tracings, carriage and truck connections &c.
being made of suitable proportions and strength to suit each case,

page_text: 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,―-
1st A securer for the purpose of using in conjunction with a stud and a keyhole
shaped opening for locking or fastening the said stud by means of the securing bar
marked N.
2nd A spring bearing against the securer for the purpose of retaining it in
position.