Improvements in the Means of Coupling Harness, Railway Carriages, and other Objects.
Year: 1888

page_text: Date of Application, 31st Jan., 1888
Complete Specification Left, 29th Oct., 1888
Complete Specification Accepted, 29th Jan., 1889
PROVISIONAL SPECIFICATION.
Improvements in the Means of Coupling Harness, Railway Carriages,
and other Objects.
HERMAN OTTO ALBERT EMIL GRÜNBAUM, Dentist, 17 Mark Street West Ham
Lane, Stratford in the County of Essex, do hereby declare the nature of this invention
to be as follows :-
By means of a so called "Bullet lock "A to supersede the common process of
unbuckling or unhooking objects that are connected or disconnected at will. See
coupling chain C and bullet D. These bullet locks can be made in any size,
shape, and for whatsoever purpose, for either chain, strap, bolt or other coupling
and which are locked and unlocked either by means of a bolt, screw, spring catch
or other, see B, suitable way and open and shut in various directions according to
the requirements and can, where desired, be made self acting.
H. O. A. E. GRÜNBAUM,

page_text: COMPLETE SPECIFICATION.
Improvements in the Means of Coupling Harness, Railway Carriages,
and other Objects.
I, HERMAN OTTO ALBERT EMIL GRÜNBAUM, Dentist, of 17 Mark Street, West
Ham Lane, Stratford, in the county of Essex, England, 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 process of buckling or coupling part or parts of or belonging to a harness or
horse gear of any kind as well as for fastening together Railway rolling stock, or
doors, windows and other objects, represents in principle a cup and saucer joint, that
is to say, the essence of my lock system as seen on the provisional drawing, consists of
a bullet or ball D securely retained within a respective well fitting socket.
This socket or so called bullet lock consists of two halves, the size and shape of
which as also the mode of opening and shutting the same is varying according to
requirements see Sheet II, Fig. II. III. IV. V. VI. and VII. that is to say, the two
halves of the socket are working either on hinges or on swivels and are retained in a
secure position by means of either a bolt, screw or catch-spring, see B, or by other
suitable means. This lock may, if required, be also inverted as may be seen at
Fig. IV. V. VI. & VII. Sheet II. or may be protected against external injury by an
outer encasement in shape according to requirements Fig. II.
Fig. 1. The harness coupling lock with bullet D attached to the pole chain O. The
two halves of the lock are working on a pin 1. securing a chain-link 2, intended for
attaching the lock to the collar of the horse. The opening and shutting of the lock is
effected by a lock-bar, see B. fig. III.
.
Fig. III. The coupling lock working on a pin 1. securing at the same time an
encasement 2, having the bullet D) attached to the hame's coupling 3.
Fig. IV. The encasement in form of a pair of hinges 2, working on a pin 1. The
two halves of the socket lock D with bullet in it, are attached at 4 to one side or half
of the hinge, working on a pin, as seen at 4, fig. VII.
The bullet is attached to the
The two halves of the
other half of the hinge at 5 and holding the leather strap 3.
lock are kept securely closed by means of a bolt B. This mode of coupling is intended
most particularly for the tugs and girt, as seen at 7, fig. V.
Fig. V.The same mode of coupling as fig. IV, but open, showing the pin 1, which
serves at the same time as a lover, see 6, while changing the buckle-holes.
Fig. VI. The same hinge like mode for railway truck coupling, working on a pin 1,
the lower half 3 is a fixture, forming the drawbar of the carriage, the upper half 2 is
moveable, having a triangular latch-bolt B affixed at 4 on a pin working, the lower
descending part of which is plying within a vacuum at 5, to open and shut the lock,
as seen at B fig. VII. The coupling chain 6 appears in part broken, to show its

page_text: connection with the neck of the bullet D. At 8 a prolongation of the upper half of
the hinge 2 in form of a hook, is to afford extra strength and security against breakage
or accidental uncoupling of the chain.
Fig. VII. The sockets of the lock D with bullet D detached underneath. At 4 is
seen the pin on which the two halves are moving. B, indicates the space into which
the triangular latch-bolt is fitting in order to secure the shutting of the lock. At 3
may be seen the junction of the bullet with the draw-bar of the carriage.
The form of coupling for windows and doors is essentially the same as shown in the
provisional drawing, that is to say, for windows, the bullet D) is affixed by means of its
neck "within the sash of the outer or top window. frame, while the sash of the inner
or lower window frame contains the two halves of the socket-lock and the fastening
bar B.
to
Whereas in the case of door fastening the bullet D is affixed "within" the upright
door post, while the respective socket halves and the fastening bar B are
"let in
the corresponding door frame.
The opening and shutting is effected by the various means already described or as
found suitable.
I would have it understood therefore, that what I claim is
1) The mode or modes of constructing the said lock as heretofore described.
2) The mode or modes of applying this coupling or buckling system for the purposes
as specified in the title as herein shown and described.
3) The mode or modes of adapting this lock system in a variety of shapes and
manners for purposes as specified in the title as heretofore described and indicated on
the provisional drawing and by Fig. II, III, IV, V, VI, and VII on sheet II.
Dated this 27th day of October 1888.
H. O. A. E. GRÜNBAUM,