Improved Cable Grip for Cable Railways, Tramways, and other. purposes.
Year: 1890

page_text: Date of Application, 1st Nov., 1890
Complete Specification Left, 4th Aug., 1891-Accepted, 19th Sept. 1891
PROVISIONAL SPECIFICATION.
Improved Cable Grip for Cable Railways, Tramways, and other.
purposes.
I, JOHN PITT BAYLY, of 18 Fulham Place, Paddington, in the County of
London, Patent Agent, do hereby declare the nature of this invention (a com-
munication to me from abroad by Alfred Brumwell, and Merritt Doolittle, both
of Kansas City, Missouri, U.S.A. Inventors) to be as follows:-
This invention relates more particularly to that class of cable-grip used in con-
nection with cable railways, tramways, and the like; and the invention has for its
object to provide a grip which cannot loose its hold of the cable, and which can be
conveniently operated in a simple, neat, and efficacious manner.
A grip made in accordance with this invention comprises two oppositely pivoted
jaws, which are made to conform to and hold the cable when closed. These jaws
have upwardly extending cars which have outwardly inclined faces, and which ears
are adapted to be separated by the closing of the jaws, and vice versa. These
jaws are pivoted to a main frame which is combined with a centrally-placed
vertically-sliding body-sheet which is adapted to be raised or lowered by a rod
or other device. Attached to the body-sheet by means of a pin working in a slot
is one or more yokes, having inwardly projecting fingers which come into contact
with the aforesaid inclined cars, when it is raised, and open the jaws which close
again around the cable when the sliding body-sheet is lowered. The lower surfaces
of the yokes are formed with a downward projection which enters a slot made in
the top of the cars of the jaws, which are thereby kept closed until the yoke is
raised, and the cable released.
COMPLETE SPECIFICATION.
Improved Cable Grip for Cable Railways, Tramways, and other
purposes.
I, JOHN PITT BAYLY, of 18 Fulham Place, Paddington, in the County of
London, Patent Agent, do hereby declare the nature of this invention (a com-
munication to me from abroad by Alfred Brumwell and Merritt Doolittle, both of
Kansas City, Missouri, U.S.A. Inventors,) 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 various improvements in the construction and operation
of a cable grip, and the invention consists in features of novelty hereinafter described
and pointed out in the claims.
Fig. 1 is a side elevation of my improved device.
Fig. 2 is an end view showing the jaws of the grip in their closed position.
Fig. 3 is a bottom view.
Fig. 4 is a vertical section showing the upper die and the various parts by which
it is operated.
Fig. 5 is a vertical section taken on line 5 5 Fig. 1, showing the jaws opened.
Fig. 6 is a vertical section taken on line 6 6 Fig. 1, showing the jaws closed.
Fig. 7 is an end view of the yoke by which the jaws are operated.
Fig. 8 is a top view of the yoke.
Fig. 9 is a side elevation of the yoke.

page_text: Referring to the drawings, I represents the main frame of the grip at the upper
end of which is secured the head 2 with its supporting pins 3 and rack 4.
5 represents the sliding body-sheet suitably secured between the sections of the
main frame. 6 represents a screw-threaded rod or bolt pivoted to the body-sheet
at 7.
8 represents in operating-lever which is fulcrumed on the head 2 at 9. The
portion 10 of the operating lever extends below the fulcrumed point 9, and to this
extension is pivoted a screw-threaded rod or bolt 11 similar to the bolt 6 secured
to the body-sheet with the exception that the threads run in the opposite direction.
12 represents a screw-threaded sleeve screwed onto the free ends of the bolts 11.
By this means the sliding body-sheet may be adjusted in its relation to the operating-
lever to compensate for wear in the dies, etc.
13 represents the usual pawl that holds the operating-lever in the position
desired.
At the lower end of the sliding body-sheet 5 is secured a die-holder 13 to which
is secured a die 14 which moves up and down in a vertical line as the body-sheet is
moved by the operating-lever.
15 represents in jaws which are pivoted to the lower end of the main frame by
means of lugs 16 on the upper side of the jaws, lugs 17 on the lower end of the
main frame and a rod 18 which passes through each of the lugs. The jaws are
formed with interlocking portions 19 which prevent any possible chance of the
cable slipping out of the jaws in which the operator wishes to release the same.
20 represents dies suitably secured to the jaws 15.
I will now describe my means for operating the jaws of the means whereby they
are held in their closed position.
21 represents plates adjustably secured to the sliding body-sheet by means of a
bolt, 22 passing through the plates and through a slot 23 in the body-sheet. These
plates extend in a lateral direction beyond the sides of the body-sheet and serve
the double purpose of a guide for the lower end of the body-sheet and a support
for two yokes 24, one of each of the yokes being secured to the ends of the plates.
(See Figs. 8 and 9.) The yokes are provided with grooves 25, into which the
main frame extends, thus forming a vertical guide for the yokes.
26 represents the uncurved fingers having bearings with inclined ears 27 on the
grip jaws. The ears 27 have recesses 28 on their upper sides.
30 represents a cable and 31 a section of the conduit.
In this form of grip I get a direct pressure on the cable in a vertical line thrown
through the centre of the body-sheet.
To operate this grip the pawl 13 is released from the notch in the rack and the
lever thrown forward sufficient to separate the upper and lower dies, thus allowing
the cable to slip through. Should it become necessary to drop the cable a still
further movement of the lever forward lifts the body-sheet 5, bringing the upper
edge of the die-holder 13 in contact with the lower edge of the plates 21 of the
yoke, which in turn picks up and carries with it the yoke and locking block, until
the locking-block is lifted clear of the ears on top of the jaws between which it
rests when the jaws are closed. At this point the fingers on the yoke come in
contact with the inclined ears on the jaws, and as the body-sheet is continued in its
upward movement the jaws are caused to rock or revolve on their pivots, thereby
closing the jaws at the top and opening at the bottom which releases the cable and
it drops out by reason of its own gravity. To keep up the cable any well known
device can be used. In raising the cable to the grip the lever is thrown back
which lowers the body-sheet 5, the jaws simply closing by their own weight, and
also the yoke and locking-block fitting in place by the natural laws of gravitation.
Having now particularly described and ascertained the nature of this my said
invention, and in what manner the same is to be performed, I declare that what I
claim is :-
:-
1. In a cable-grip, a yoke formed with inwardly projecting fingers for the

page_text: purpose of opening the jaws of a grip, substantially as described and for the purpose
set forth.
2. In a cable-grip, pivoted jaws in combination with a yoke having inwardly-
projecting fingers, substantially as described and for the purpose set forth.
3. In a cable-grip, a main frame, in combination, with a vertical sliding body-sheet,
a die-holder, a yoke having inclined fingers, and pivoted jaws in engagement
with said fingers, substantially as described and for the purpose set forth.
4. In a cable-grip, the combination, of a main frame with a centrally-placed
vertically-sliding body-sheet and removable die-holder, means for operating the
body-sheet, a yoke with inwardly-projecting fingers and pivoted jaws with inclines,
substantially as described and for the purpose set forth.
5. In a cable-grip, the combination of a main frame, jaws pivoted to the frame,
ears on the jaws, yokes having connection with the body-sheet, fingers on the yokes
for operating the jaws, and blocks on the yokes for holding the jaws in a closed
position, substantially as described and for the purpose set forth.
6. In a cable-grip, the combination, of the main frame, a sliding body-sheet,
means for raising and lowering the body-sheet, of the gripping-jaws having the
inclined cars 27, yokes having pin and slot connection with said body-sheet embracing
said ears and having inwardly-projecting fingers adapted to engage the inclines of
said ears for operating the jaws, and a die-holder secured to said body-sheet between
the jaws, substantially as set forth.
8. In a cable-grip, the combination, with the pivot jaws and the sliding body-
sheet carrying a die, of yokes having pin-and-slot connection with the said body-sheet
and provided with fingers for operating the jaws, substantially as set forth.
9. In a cable-grip, the combination, with a pair of jaws hinged together at their
upper sides and adapted to gravitate together, of inclined ears on the said jaws
adapted to be separated by the closing of the jaws and yokes embracing the said
cars, and having inwardly-projecting fingers adapted to engage the said ears and
force them together when said yoke is raised, substantially as set forth.
10. In a cable-grip, the combination, with a pair of hinged or pivoted jaws, having
the inclined ears 27, of vertically-movable yokes having inwardly-projecting fingers
adapted to engage the said ears for operating the jaws, and a die-holder arranged
between said jaws and adapted to be operated independently of the said yokes,
substantially as set forth.
Dated this 1st day of August 1891.
J. P. BAYLY,
Applicant.