IMPROVEMENTS IN BOLTS AND SPLIT PINS, AND IN THE ADAPTATION OF THE SAME FOR USE AS SHUTTER FASTENINGS
Year: 1877

page_text: LETTERS PATENT to James de Caulier Wetherell, Farmer, of Bredfield, in the
County of Suffolk, for the Invention of "IMPROVEMENTS IN BOLTS AND SPLIT
PINS, AND IN THE ADAPTATION OF THE SAME FOR USE AS SHUTTER FASTENINGS."
PROVISIONAL SPECIFICATION left by the said James de Caulier Wetherell
at the Office of the Commissioners of Patents on the 31st May 1877.
JAMES DE CAULIER WETUERELL, Farmer, of Bredfield, in the County of Suffolk.
"IMPROVEMENTS IN BOLTS AND SPLIT PINS, AND IN THE ADAPTION OF THE SAME
FOR USE AS SHUTTER FASTENINGS."
In these improved bolts parts of the heads are formed on two or more prongs,
having sufficient space between them to allow of the head being compressed to pass
through a hole of the same size, or thereabouts, as the shank of the bolt.
The elasticity of the material of which the bolts are wholly or partially made
causes the prongs to spring apart when the projections upon them forming the
head shall have been passed through the hole of about the same size as the shank.
The bolt can be withdrawn from its hole by pressing the prongs together until
the projections upon them can be forced into the hole. One or more heads
can be
formed in this manner at different distances upon the same bolt.
By forming similar projections upon the split points of split pins they have their
usual head at one end, and this improved elastic head at the other, and so where
used they can be easily withdrawn from their position without the damage or
breakage which often occurs to the common split pin.
Such an improved split pin or bolt being secured in any suitable way to shutters,
will, on being passed through a hole of suitable size in the sush or frame, expand its
prongs, the projections on which will prevent the removal of the shutter from the
outside of the building, until some one inside shall compress the prongs so closely
together that the projections will pass back through the hole.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent filed by the
said James de Caulier Wetherell in the Great Seal Patent Office on the 29th
November 1877.
JAMES DE CAULIER WETHERELL, Farmer, of Bredfield, in the County of Suffolk.
"IMPROVEMENTS IN BOLTS AND SPLIT PINS, AND IN THE ADAPTION OF THE SAME
FOR USE AS SHUTTER FASTENINGS."
In these improved bolts parts of the heads are formed on two or more prongs,
having sufficient space between them to allow of the head being compressed to pass
through a hole of the same size, or thereabouts, as the shank of the bolt.
The elasticity of the material of which the bolts are wholly or partially made
causes the prongs to spring apart when the projections upon them forming the head
shall have been passed through the hole of about the same size as the shank.
The bolt can be withdrawn from its hole by pressing the prongs together until
the projections upon them can be forced into the hole. One or more heads can be
formed in this manner at different distances upon the same bolt.
By forming similar projections upon the split points of split pins they have their
usual head at one end, and this improved elastic head at the other, and so where
used they can be easily withdrawn from their position without the damage or
breakage which often occurs to the common split pin.
Such an improved split pin or bolt being secured in any suitable way to shutters,
will, on being passed through a hole of suitable size in the sash or frame, expand its
prongs, the projections on which will prevent the removal of the shutter from the
outside of the building until some one inside shall compress the prongs so closely
together that the projections will pass back through the hole.
DESCRIPTION OF DRAWING.
Figs. 1, 2, and 3 represent one of these improved bolts with a cylindrical shank
and the head formed by a projection A on each of two prongs B.
Figs. 4 and 5 represent the head of one of these improved bolts formed by
projections A on each of the prongs B from a cylindrical shank.
Figs. 6 and 7 represent the head of one of these improved bolts formed by
projections A on each of six prongs B from a cylindrical shank.
י
Figs. 8 and 9 represent the head of one of these improved bolts formed by
projections A on each of four prongs B from a shank of square section.
Fig: 10 represents one of these improved bolts with a square shank, and its head
formed by a projection A on each of two prongs B; the bolt is shewn fastening two
pieces of wood together, which pieces of wood may be taken to represent part of
the axletree of a seed drill, the axletrees of some of these machines being made
in two parts, so that the wheels can be set at different gauges. The nut being
_slightly loosened, and the prongs pressed together the bolt can be drawn through
its hole; then any other pair of holes being placed together the bolt can be passed
through. This operation is more speedily performed than if the nut had to be
taken off the bolt; besides, not being taken off the bolt, it is not so likely to be
_ mislaid or lost.
Fig-11-is an end view-of-the-bolt represented in Fig. 10..
Fig. 12 represents one of these improved bolts or split pins used as a shutter.
fastening; A is the shutter; B, the glass; C, the frame; D, the bolt screwed to the
shutter, and having a joint E in its shank. The head is formed by projections F
on two prongs G; there is a metal plate H with hole in it to give a firm hold to the

page_text: through the collar D and axle E, thereby retaining the nave F of the wheel in its
proper position.
Fig. 16 represents one of these improved bolts with a square shank with more
than one of the improved heads upon the shank prongs, each set. of projections A,
A, B, B₁, form a head, so that the jaws C, D, may be put at any distance from one
another, and the whole apparatus used as a cramp for holding together material of
different widths or thicknesses, such a cramp as is used in carpentry.
Figs. 17, 18, and 19, represent an improved split pin, having the usual ring head
at one end and an improved elastic head at the other end.
Having described the nature of my Invention, and the manner in which the
same is performed, I would have it understood that what I claim as my Invontion
is,-
The construction of bolts and split pins with heads formed by projections upon
prongs, which prongs in the case of bolts form a continuation of a solid shank, and
in the case of some descriptions of split pins these projections form a second elastic
head upon a shank, having an ordinary bolt head at the other.
While in the case of other descriptions of split pins made with a shank split
throughout its length, I claim, forming projections upon the elastic points of the
said split pins, which projections form a head.
In witness whereof, I, the said James de Caulier Wetherell, have hereunto
set my hand and seal, this Twenty-ninth day of November, in the year
of our Lord One thousand eight hundred and seventy-seven.
Witness,
JAMES DE CAULIER WETHERELL (L.S.)
THOS. WILKINS,
Agent,
101, Camberwell New Rd.,
S.E.