Improvements in Implements for Laying and Stretching Wires, Ropes, Cables through Posts.
Year: 1895

page_text: Date of Application, 21st Mar., 1895
Complete Specification Left, 12th Dec., 1895-Accepted, 25th Jan., 1896
PROVISIONAL SPECIFICATION.
Improvements in Implements for Laying and Stretching Wires,
Ropes, Cables through Posts.
I, LOUIS BULBRING, Manufacturer, of Port Elizabeth, South Africa, Cape
Colony, District Uitenhage, do hereby declare the nature of this invention to be as
follows:-
:-
I have worked out improvements in, and invented a combination of hand worked
implements and tools used in such out-door work as for instance fencing-in land or
cattle-fields; in laying out wires, nettings, ropes or cables, or electric overhead
wires for telegrafic or telefonic purposes, and wherein posts, columns, joists are to
be perforated and used for carrying the said wires, ropes a.s.f. in passing them
through the holes bored, and in stretching them and pulling them tightly up and fix
them to the said posts, columns or joists, and I use for these purposes a combination
of implements consisting of three parts, a boring tackle, a stretching tackle and a
clamping tackle.
The boring tackle is so arranged as to be able to fix it against posts or columns
or joists of any suitable form, and to bore holes through them in a conveniant
manner; the stretching tackle serves to take up the end of the wire stuck through
the hole in the last post and pull it up strongly, and to stretch and straighten
the wire which is fixed to the first post; and the third part of the implement is
a clamp, which may be put on the stretched wire between the two posts, clamping
the wire securely in order to transfer the back-pull of the stretched wire to the
last post by a chain fixed to the clamp and slung round the post, so as to make
free the end of the wire, pulled up by the stretching implement-parts, and to allow
the latter to be taken off, in order to use the free end, either to be lengthened
out by uniting it to a new wire-length, or to be slung round the last post in order
to fasten it to the same; after which then the clamping implement-parts can be taken
off also.
Dated this 10th day of March 1895
LOUIS BÜLBRING.
Per Karl J. Mayer,
Agent.
Improvements in Implements for Laying and Stretching Wires,
Ropes, Cables through Posts.
I, LOUIS BULBRING, Manufacturer, of Port Elizabeth, South Africa, Cape
Colony District Uitenhage, 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 :-
My invention relates to improvements in hand-worked implements and portable
tools combined for use in such out-door work as for instance fencing-in land or
7

page_text: cattle-fields, in laying out wires, ropes, or cables, or overhead wires for electric
telegraphs or telephones and wherein posts, columns, joists, are to be perforated
and used for carrying said wires or ropes in passing them through the bored holes
and stretching them and pulling them tightly up and fix them to the said posts.
In carrying out this invention I make use of a combination of three parts, a horing
tackle, a stretching tackle and a clasping tackle.
The boring tackle is so arranged as to be able to fix it against posts, columns,
girders, or joists by means of its parts, and to bore holes in said posts in the desired
place; the stretching tackle serves to take up the end of the wire, stuck through
the hole bored in the last post, and to pull it up strongly to stretch and straighten
the wire which is fixed to the first post; the clasping tackle finally is used for
clasping the stretched wire between the posts and after being by its chain suitably
fixed to one of the intermediate posts for transferring the back-pull of the
stretched wire to this post, so as to make free the end of the wire which has been
pulled up by the stretching tackle, and to allow to take off the latter from the post
and to use the free end for lengthening out the wire by uniting it to a new wire-
length and for fastening it to a post, or to the last post, after which then the
clasping implement can be taken off.
The accompanying drawings show these different tackles, in which
Sheet I Fig. 1 is a side view of the boring tackle.
Fig. 2 is an end view from the right hand side of Fig. 1 ;
Fig. 3 is a plan partly in section through the centre line;
Fig. 4 is a plan of the chain-tightening device with the tightening lever in its
open position;
In Sheet II Fig. 5 is a side view of the stretching tackle;
Fig. 6 is a front view of the same seen from the left of Fig. 5;
Fig. 7 is a top view of a post with the stretching and the clasping tackles in
place.
Fig. 8 is a side view of the clasping tackle;
Fig. 9 is a vertical section along I-I of Fig. 8;
Fig. 10 is a side view of the stretching tackle in place with a wire stuck through
the post and ready to be stretched;
Fig. 11 is a side view of a post with the clasping device in place on a stretched
wire, showing in dotted lines the stretching device.
The boring device is composed of a shoe A which together with guide-rods B B
and crosshead C constitute the framework of this tackle. The shoe A has a channel
iron section and both the longitudinal edges are sharpened off and have teeth cut in,
giving a good bite when pressed to a pole or column or girder. On the back of
this channel-shaped shoe A are two lugs D D standing cross-ways and taking up
each the forked end of a hand lever E, linked by a pin H to the lugs D.
Each hand lever E carries on pins Ja forked link G, whose fork is of sufficient
length and width to pass over the lugs D when E is moved in the direction of the
arrow in Figs. 3 and 4; this link G forms the first one of a chain M connected by
it to the lever E and of sufficient length to be slung round the post or column O, to
be bored.
On one side the shoe A is provided with hooks L into which the chain M is hung
by one of its links, so as to keep the shoe A, which had been placed with its teeth
against the post and parallel to it, more or less tightly pressed to the latter. When
the hand-lever E which by putting the chain round the post, was brought to
position N, Fig. 3 is moved into position N' by applying a sufficient hand force, the
shoe A is fixed tightly up to the pole O in a parallel position.
The shoe A carries two parallel guide-rods B B which are screwed into the
bosses P P provided on the back of A and stand at right angles to this back of
the shoe. In the centre between the guide rods a hole Y is bored in the back of
the shoe.
The guide-rods hold between two nuts the lugs of a crosshead C with a central
boss forming the long nut of a long screw spindle R. The end of the spindle is

page_text: provided with a socket S for the drill or auger W and with a guide plate U fixed.
by a nut against the socket and sliding on the guide rods with its eyes V, V..
The other end of the spindle carries a handle Z to rotate the screw spindle.
The drill or auger W, after being inserted into the socket is fixed therein by the
screw pin at X and it stands parallel to the guide rods forming a continuation of
the screw spindle and being strictly central to the hole Y in the shoe A. In
turning the handle to the right the spindle R will advance in its nut rotating at
the same time the drill, which, passing through the hole Y will penetrate into the
post or other object to be bored.
The posts are thus bored in sufficient number for say a fence of a cattle field'
and then the wire for fencing is laid out through the bored holes; the stretching
tackle is then employed for stretching and straightening the wire and for pulling
it up tightly. This stretching device is composed of a chair b, Fig. 5, Sheet II,
with a grooved pulley or roller a, turning with its axle c in two bearings d d¹ on
the chair; when worked with a suitably forked hand lever or wrench put over.
the square ends of the axle c, the roller can be turned round in one sense, the
ratchet wheel e and pawlf sitting on the exterior part of the axle c, preventing the
roller to be turned backwards. This ratchet wheel can be unlocked by lifting:
the tail of the pawl.
The roller a is bored diametrically at h and the chair b which has two parallel
edges with sharp teeth like shoe A in Fig. 1, is recessed at g in the central part,
when this chair is put with this recess g over a hole in a post, a wire end is stuck
through the post to pass through recess g and then through the hole h in the roller;
the wrench being applied on the square ends of the axle, the wire, when fixed
to the first post of a series, can be wound up on the roller and so pulled up and.
stretched between the first post and that whereon the stretching device is put.
and worked by the forked lever k shown in dotted lines in Figs. 5 and 7, the-
ratchet wheel and the pawl, being engaged, prevent the pulling back of the wire-
on the roller a and keep the wire stretched.
Now the wire may be required to be connected to another length for continuing
the fence further on, or it may be intended to fix the wire in stretched state to the
post in question. To do this, the third implement, the clasping device, is used in
my invention.
This clasping device I have provided with chains to be slung round the post to.
which the back pull of the stretched wire is to be transferred, and it consists of a.
plate 1, Figs. 7 to 11, on which are disposed between covering pieces 2 and 3, two
hardened steel jaws 4 and 5, the first of which is fixed by a rivet 6 and the other.
one is loose, sliding in a groove left between plate 1 and covering piece 3, a thumb
screw 7 being provided to press the upper jaw 5 strongly down upon a wire when
laid in by the open side-groove 8, between the jaws 4 and 5 and to clasp the wire
firmly. In eyes 9 and 10, at the corners of plate 1 are held two double links 11
and 12, each on a pin 13; these links are strengthened by a stay 15 and have each
at one side an eye 12s and a coupling chain-link 16 to fix a chain 17 to the device-
and at the other side a hook 14 for hanging in the other end of this chain when it
has been slung round a post.
In Fig. 7 the clasping device is seen applied to a post, with a wire held between.
the jaws, and in Fig. 11 it is seen, that the two chains 17 are slung round the post
one above and one below the stretching device described before and shown in
dotted lines, in order to be able to fix the clasping implement when the stretcher-
is still taking up the strain of the tension of the wire. The clasping device being
put round the post, the plate part is pulled so as to stretch the chains and putting
the stretched wire between the jaws 4 and 5 the thumb screw 7 is used for fixing
the wire.
•
In this position the pawl i can be disengaged from the ratchet wheel e when by
means of lever k the strain is taken off the ratchet wheel for a moment and the.
back-pull of the wire is thus taken up by the chains 17.
The end of the wire may be taken off the roller a and the stretching tackle.

page_text: pulled off. The end of the wire may then be used for joining it to another piece of
wire or for securing the wire to the post.
Owing to the heavy pull exerted on the wire in stretching it, the teeth of the
chair b may sometimes be biting so deeply into a soft wood post that the chair
does not come off easily notwithstanding the loosening of the ratchet wheel, the
wire still sticking in its bore h. In such a case the hand lever k may be used as a
pinch bar to force the chair off the post and pull it off from the wire.
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 implements or portable devices for laying, stretching and clasping wires
for fences or other purposes and consisting of a boring device capable of being
fixed in any position to the object to be bored, of a wire stretching device and of
a wire clasping device the combination, with a shoe A with eyes D thereon and
levers E, long forked links G and chains M connected therewith, of guide rods B B
cross head C and spindle R to be rotated by handle Z and screwed in said cross-
head, and of guideplate U with boss S for fixing an auger or drill in it, all
substantially as set forth and for the purpose specified.
2. In implements or portable devices for laying, stretching and clasping wires
for fences or other purposes, consisting of a boring device capable of being fixed
in any position to the object to be bored, of a wire stretching device, and of a wire
clasping device, the combination in the stretching device, with a chair 6 having a
recess 9 and journals d, of a diagonally bored grooved roller a having an axle c
turning in said journals, with square ends and a ratchet wheel e keyed thereon, a
pawl with tail i, engaging the ratchet wheel e, and of a detachable forked
wrench k for turning the axle c, substantially as specified.
3. In implements or portable devices for laying, stretching and clasping wires
for fences or other purposes, consisting of a boring device capable of being fixed
to the object to be bored, of a wire stretching device and of a wire clasping device,
the combination, in the clasping device, with a plate 1 and covering pieces 2 and 3,
of two hardened steel jaws 4 and 5, one fixed, the other movable on plate 1 in a
groove 8, a thumb screw 7, eyes 9 and 10 with double links 11 and 12 turning on
pins 13 and of chain-coupling links 16 chains 17 hooks 14 on each double link,
substantially as specified and for the purpose set forth.
Dated this 5th day of December 1895.
LOUIS BULBRING,
Per Karl J. Mayer,
Agent.