Improvements in Scaffold-fastenings for Builders' or like Purposes.
Year: 1890

page_text: Date of Application, 6th Nov., 1890
Complete Specification Left, 6th Aug., 1891-Accepted. 19th Sept. 1891
PROVISIONAL SPECIFICATION.
Improvements in Scaffold-fastenings for Builders' or like Purposes.
I JOSEPH VARLEY of West Street Gargrave via Leeds in the County of York,
Builder, do hereby declare the nature of this invention to be as follows, that is to
say:
It relates to improvements in scaffold-fastenings for builders or like purposes and
consist of so arranging and constructing the parts forming these fastenings that they
are made to perform their functions efficiently notwithstanding any of the usual
variations in the thicknesses or girths of the poles or supports in connection with
which they are to be used, and that are or may be used for scaffolding purposes;
while their application or detachment may be as readily effected as is the case with
any such fastenings at present in use.
To attain this object I make use of a bifurcated bracket, one extremity of this
bracket being spurred for contact with the upright scaffold pole, while its bifur-
cations are made to extend (when in use) upwardly, having their inner edges
serrated for contact with the horizontal timbers, and to hold this bracket in this
position a chain attached thereto, as hereinafter described, is made to encircle and
grip the upright pole.
A shaft is mounted to extend horizontally across the bifurcations, so that a hook
may be formed on one extending end while a suitably formed lever-handle may be
fixed or rigidly mounted on the other.
The chain above described has one end attached to the handle side of the bracket
and its other end is for coupling to, or laying hold of the hook on the end of the
shaft, this hook being so formed that when in one position said chain may readily
slip from connection therewith but in its other positions it firmly holds same, and
the weight of the handle alone will retain same in this latter position although if it
is desired a fastening pin or holder for the handle may be employed.
When in use the bifurcated bracket acts as a lever, having for its fulcrum its
cross shaft, (which is maintained by the chain) the relative position of which
together with the positions of its arms and spurred end are such that by the cross
or horizontal timbers being placed in contact with these said arms their weight
cends to bind and secure the whole firmly in position.
Dated this 5th day of November 1890.
JOSEPH VARLEY,
Per Samuel Hey,
A cent
COMPLETE SPECIFICATION.
Improvements in Scaffold-fastenings for Builders' or like Purposes.
I, JOSEPH VARLEY of West Street Gargrave via Leeds in the County of York,
Builder, 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, that is to say :-
It relates to improvements in scaffold-fastenings for builders or like purposes and
consists of so arranging and constructing the parts forming these fastenings that
they are made to perform their functions efficiently notwithstanding any of the
usual variations in the thicknesses or girths of the poles or supports in connection
with which they are to be used, and that are or may be used for scaffolding purposes;
while their application or detachment may be as readily effected as is the case with
any of such fastenings at present in use.
n

page_text: In the accompanying sheets of drawings
Fig. 1 is an elevation of my improved fastening shewing the handle-side as when
in use,
Fig. 2 being a similar elevation but shewing the opposite side and
Figs. 3 and 4 are front and top views of parts shewn by Figs. 1 and 2.
Figs. 5 and 6 are similar views to Figs. 1 and 2 but are illustrative of an
arrangement whereby wire or other rope may be used instead of chain.
Figs. 7, 8 and 9 are drawings in detail enlarged scale of parts hereinafter
referred to.
the
To attain the object of my invention I make use of a bifurcated bracket
extremity a of which is spurred for contact with the upright scaffold pole b, while
its bifurcations a² a² extend upwardly and have their inner edges serrated for
contact with the horizontal timbers c. To hold this bracket a in the position
shewn, a chain d or wire rope e (Figs. 5 and 6), attached thereto as hereinafter
described, is made to encircle and grip the upright pole b.
A shaft is mounted to extend horizontally across the bifurcations a² a² so that a
hook g (or g', Figs. 5, 8 and 9) may be formed on or attached to one extending end
while a suitably formed lever-handle h may be fixed to the other as shewn by
Figs. 1, 2, 3 and 4. Instead of the handle being rigidly fixed to the shaft, the
outer end (Figs. 6 and 7) of said shaft may be formed by having an opening for
the reception of a loose or detachable handle or if desired a square part might be
formed thereon instead of this opening for the reception of said handle which in
each case will be made to suit as will readily be understood.
The chain d (or rope e) has one end attached to the handle side of the bracket a
while its other end is for coupling to, or laying hold of the hook g (g¹) on the end
of the shaft, this said hook g (9) being so formed that when in one position (that is
the one diametrically opposite to that shewn by the drawings) said chain d (or rope e)
may readily slip from connection therewith, but in its other position (as that shewn
by the drawings) it firmly holds same, and (in one case) the weight of the handle h
alone will retain it in this position, although when a detachable handle is employed
a fastening pin or a holding catch (see Figs. 8 and 9) falling within a notch
formed in the collar of the hook g' is preferably made use of in order that its said
holding position might more certainly be secured.
When the chain d is employed its length may be regulated to enable it to grip
larger or smaller poles, by means of one or other of its links being laid hold of by
the hook 9, while when the rope e is employed annular pieces / slided or slipped
loosely upon said rope e are made use of, these said pieces having pins in order
for the hook m (which is formed on the bracket a) to lay hold thereof, as shewn.
The length of the encircling part of the rope e is regulated by said hook me laying
hold of one or another of said pieces 1, and all of these said pieces that intervene
between the outer end of said rope and said hook m perform their part in withstanding
any force acting through said hook m, the pieces on the other side of same
being idle.
When in use the bifurcated bracket a acts as a lever, having for its fulcrum its
cross shaft (which is maintained or supported by the chain d or the rope e), the
relative position of which with the arms a² a² and spurred end a' is such that by the
cross timbers c (which may be round or square in cross section as shewn by Figs. 5
and 1) being placed in contact with so as to rest upon these arms a² a² their weight
tends to press the spurred end a¹ into the timber band so binds or secures the whole
firmly in position.
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. A scaffold-fastening formed and constructed substantially as herein described
so that cama mov bo voodil. anuliad au datachod az art forth

page_text: Ascarold-fastening formed and constructed so that it may be applied to
scaffold poles of varied thicknesses or girths substantially as herein specified.
Dated this 5th day of August 1891.
JOSEPH VARLEY,
Per Samuel Hey,
Agent.