AN IMPROVED CONSTRUCTION OF STUDS
Year: 1884

page_text: PROVISIONAL SPECIFICATION.
I, CHARLES DENTON ABEL of N° 28 Southampton Buildings, Chancery Lane,
in the County of Middlesex, Consulting Engineer and Patent Agent do hereby.
declare the nature of the said invention for "AN IMPROVED CONSTRUCTION OF
STUDS" to be as follows:-
This invention relates to an improved construction of studs in which the base is
arranged to pivot upon the stem or shank, so that it can be turned down into a
position parallel with the shank so as to be readily passed through the button hole,
and can then be turned up in a position at right angles to the shank, so as to
secure the stud in the button hole.
The construction of the stud for this purpose will be readily understood on
reference to the accompanying drawing, in which Fig 1 shews a view of the stud
and shank without the hinged base, Fig 2 shews a section of the stud with the
base in position for insertion into the-button hole and Fig 3 shews the same view
with the base turned up after insertion. Fig 4 shews a detached view of the
plate D. The shank B of the stud A is formed with a bend as shewn at Figs 2
and 3, and with two sets of shoulders a and d as at Fig 1. The base consists of a
cap C, having a notch in its rim at h and containing a plate D, Fig 4, having a
notch at a, and on each side thereof a hollow b b, into which fit the shoulders a a
of the shank, which thus form the pivots on which the base turns; it has further-
more an opening finto which fits the end of a bent spring E, having a forked free
end between the limbs of which fits the shank B, so that the spring bears upon its'
shoulders d d. These parts: are enclosed by a covering piece F having a notch or
alot through which the shank B passes.
From this construction it will be seen that when the base is turned up into the
position at Fig 3 it will be held firmly therein by reason of the spring E pressing
upon the shoulders d d of the obliquely situated end of the shank, and in like
manner the base will be held by the spring when turned down into the position at
Fig 8. The plate D has a small upward projection at i, fitting into a corre-
sponding notch in the cover F, so as to insure the parts being secured together in
correct position. The cover F is held by turning over the upper edge of the rim
of C upon it.
DL:
•

page_text: COMPLETE SPECIFICATION,
"
I, CHARLES DENTON ABEL, of N° 28 Southampton Buildings, Chancery Lane
in the County of Middlesex, Consulting Engineer and Patent Agent do hereby
declare the nature of my invention for "AN IMPROVED CONSTRUCTION OF STUDS
and in what manner the same is to be performed to be particularly described
and ascertained in and by the following statement :—
-This-invention relates-to-an improved construction of studs in which the base is
arranged to pivot upon the stem-or_shank, so-that-it can be turned down into a
position parallel with the shank 50 as to be readily passed through the-button_hole;
and can then be turned up in a position at right angles to the shank, so-as-to.
secure the stud in the button hola.
"
Figs-and-2 of the accompanying drawings shew two views, at right angles to
-cach other, of the stud with the hinged-base-removed; Fig. 3 shows a view of the
complete stud; Fig. 4 is a plan of the head and Fig. 5-is-a-view of the underside
of the same.
]
A is the body of the stud having a shank B which is formed with a bend and 1
has two sets of shoulders a and d which constitute the pivots upon which the
shank turns. The base consists of a cap C shewn separately at Figs-6-and 7 con-
taining an internal plate D shewn separately at Figs. 8 and 9. This plate, which
is slit, as shewn at Fig. 9, has at fa raised portion which serves to receive the
ende of a spring E, shewn separately at Figs. 10 and 11. The plate D has, at bb
on each side of the slit, raised portions, beneath which, the points or pivots of
articulation a of the shank B are situated. The spring E, of which the part e
engages under the raised, part of the plate D, as described, is cut, so as to form on
the opposite side the two branches c of a fork which serve to bear constantly upon
the shoulders & of the shank B. In order to fix the base to the shank of the stud,
the points or pivots a a are engaged under the parts b b of the plate D as shewn at
Figs. 14 and 15. The spring E is then placed in position and the cap C is applied
over the plate D. The base is enclosed by means of a cover F shewn separately at
Figs. 12 and 13. The plate D has in addition at i, a raised portion,, which serves
to enter the notch of the cover F, which has also a notch g coinciding with the
notch h of the cap C, so as to allow of the motion of the shank B relatively to the
base. As shewn at Figs. 14 and 15, the cap C and cover F are secured together
at y, thus confining between them, the plate D, spring E and the lower beut part
of the shank B. Fig. 14 shews a section of the stud, the base being in position for
bolding the stud in place; Figs. 15 and 16 shew a section and side view of tho
stud, the base being in position for being introduced into the button-hole.
It will be seen that in both these positions, the spring E resting upon the
shoulders d d of the shank B will hold the base and shank in their relativo
positions. Owing to the oblique direction of the lower part of the shank the
pivots a are situated away from the centre whereby pressure of the spring is
rendered more energetic-and- secures the base in the position shewn at Fig. 14.
When the base is in the position shewn at Fig. 15, the shank B is situated exactly
in the axis thereof whereby the insertion and removal of the base into and from
the button-hole is greatly facilitated.

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
1, In studs with pivotted base, the combination of the bent shank with the base
pivotted thereto, the parts being so arranged that the pivot is situated to one side
of the centre line of the base, and that when the base is turned down for insertion
into the button hole, it is in line with the shank, substantially as herein described.
2, In combination with the bent shank B, the use of a spring E bearing upon
shoulders on the shank, and operating substantially as herein described.
3, The combination of the cap C, the internal plate D carrying the pivots of the
shank B, the spring E acting thereon and the slotted cover F, forming together the
pivotted base of the stud, substantially as herein described.