Safety Arrangement for the Reversing Gear of Hoisting Machines and Motors generally.
Year: 1899

page_text: Date of Application, 8th Aug., 1899
Complete Specification Left, 19th Jan., 1900-Accepted, 21st July, 1900
PROVISIONAL SPECIFICATION.
Safety Arrangement for the Reversing Gear of Hoisting Machines
and Motors generally.
I, FREDERICK WILLIAM GOLBY, of 36, Chancery Lane, in the County of
Middlesex, Patent Agent, do hereby declare the nature of this invention, as
communicated to me by Emil Brucksch, of Schönbrunn, near Goerlitz, Selesia,
Germany, to be as follows:-
The object of this invention is a safety arrangement for reversing gear
mechanism, mainly intended for hoisting machines, but applicable to motors
generally.
The purpose of this arrangement is to mechanically prevent the machine from
being run by mistake in the same direction twice consecutively; this may be
done however by taking suitable precautions in case of necessity.
The reversing lever is provided, besides its spring pawl arrangement, with two
nose like plugs. On the frame which serves as a guide for the lever, another
frame is adjusted at right angles, having two open sockets capable of being moved
longitudinally backwards and forwards; inside each of these sockets is a bolt
acted upon by a spring. On the upper part of each socket is a pin which is
guided in a slot in a rotatable cap-plate.
When the machine is ready for running forwards the reversing lever stands
in the middle position, so that the nose like plugs thereon engage noses on the
cover plate and partially rotate the latter causing the slots to draw back the for-
ward socket and bolt and to shoot the rear socket and bolt.
Consequently, the only possibility is to set the lever forwards: The reverse
movement of the lever rotates the cap-plate in the opposite direction and reverses
the position of the bolts.
In this position it is again impossible to set the reversing lever forwards, so
that even in case of carelessness the engineer is compelled to set the lever to
the backward position.
This operation is repeated continuously so that the hoisting machine or motor
will always be geared forwards or backwards.
By means of a handle on the cover plate the latter may be rotated as desired
and the machine may be run in the same direction twice or more if required.
Dated this 8th day of August 1899.
F. W. GOLBY,
Patent Agent 36. Chancery Lane, London, W.C.
COMPLETE SPECIFICATION.
5. Safety Arrangement for the Reversing Gear of Hoisting Machines
and Motors generally.
I, FREDERICK WILLIAM GOLBY, of 36, Chancery Lane, in the County of
Middlesex, Patent Agent, do hereby declare the nature of this invention and
[Duine Q77

page_text: in what manner the same is to be performed, as communicated to me by Emil
Brucksch, of Schönbrunn, near Goerlitz, Silesia, Germany, to be particularly
described and ascertained in and by the following statement:--
The object of this invention is a safety arrangement for reversing gear
mechanism, mainly intended for hoisting machines, but applicable to motors
generally.
The purpose of this arrangement is to mechanically prevent the machine from
being run by mistake in the same direction twice consecutively; this may be
done however, by taking suitable precautions in case of necessity.
In the accompanying sheets of illustrative drawings Fig. 1 is a vertical section
of the arrangement and Figs. 2 to 5 are plans of same, showing it in different
positions of the reversing lever.
The reversing lever a is provided, besides its spring pawl arrangement p.
with two nose like plugs n, 0. On the frame which serves as a guide for the
lever, another frame is adjusted at right angles, having two open sockets b, c,
capable of being moved longitudinally backwards and forwards: inside each of
these sockets b and c is a bolt d, e, acted upon by a spring f. On the upper
part of each socket is a pin g, h, which is guided in a slot in a rotatable cap-
plate i.
When the machine is ready for running forwards the reversing lever a stands
in the middle position (Fig. 2), so that the nose like plugs n, o, thereon engage
noses l, m, on the cover plate i and partially rotate the latter causing the slofs
to draw back the forward socket band bolt d and to shoot the rear socket e and
bolt e.
in the
Consequently, the only possibility is to set the lever a forwards. The reverse
movement of the lever from its extreme position rotates the cap-plate
opposite direction and reverses the position of the bolts d, e.
In this position it is again impossible to set the reversing lever forwards,
so that even in case of carelessness the engineer is compelled to set the lever to
the backward position.
When the lever has arrived in position Fig. 3, the end of the bolt d, and when
the lever has arrived in position Fig. 5 the end of the bolt e by impinging
against frame a¹, and thus compressing spring f (Fig. 1), will rotate the disc i
slightly backwards and forwards respectively, so that the noses will be re-engaged
by the pins, upon the next stroke of lever.
This operation is repeated continuously so that the hoisting machine or motor
will always be geared forwards or backwards.
By means of a handle (k) on the cover plate the latter may be rotated as desired
and the machine may be run in the same direction twice or more if required.
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:
Safety arrangement for reversing gear of motors of all kinds, the distinguish-
ing feature of which is that a rotatable disc is actuated by two noses n, o,
seated on the ordinary reversing lever, through the medium of two corresponding
pieces m, the disc, in turn, acting on two bolts d, e, inserted in special sockets b, c,
and under spring influence, one of these bolts being always adjusted in the
path of the reversing lever in such a manner that the latter is mechanically
secured against being turned again in the same direction substantially as des-
cribed and illustrated in the accompanying drawings.
נות
1011
1000
F. W. GOLBY,
Patent Agent, 36, Chancery Lane, London, W.C.