Improved Counting Device for Cranes and the like.
Year: 1898

page_text: Date of Application, 9th Aug., 1898-Accepted, 10th Sept., 1898
Improved Counting Device for Cranes and the like.
I, PAUL JABLONOWSKY, of No. 53, Woltmannstrasse, Hamburg, in the Empire of
Germany, Quay Official, 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:-
The object of the present application consists of a counting device for recording
the movements of a crane, and especially of automatically counting the to and fro
motions of a crane, whereby of course the number of the loads carried is indicatod,
the said number of loads being one half of the indicated movements of the crane.
The invention is illustrated in the accompanying drawing, in which,
Figure 1 is a front elevation of the device.
Figure 2 is a side view of the same.
In both these figures the front wall of the casing is supposed to be removed.
The counting device consists essentially of a cover 1 in the upper part of which,
supported by the spring 2 in its uppermost position is placed the presser bar 3.
This bar is provided on its upper end with a friction roller 4, and effects the
actuation of the counting mechanism by contact with a foot secured to the under
side of the platform of the crane. At the lower end of the presser bar 3 is fixed a
lever and catch 5, which is supported so as to easily swing to and fro in a fork, and
which when in the position shewn in Figure 2 will actuate the spur wheel 6,
whenever the presser bar 3 is depressed, and rises again under the influence of the
spring 2. The axle 7 of the spur-wheel 6 is supported revolubly in bearings
attached to the base of the casing 1, and there is placed on the said shaft a counting
wheel 8 for the units. The counting is preferably so arranged that two strokes of
the presser bar 3 are requisite to move the wheel a whole number, so that it is
possible to read off the number of loads, that is of double movements of the crane
without further calculation, because for the return motions no figure appears on the
apparatus. The number can be read off at the front through an aperture 9. In
order to count the tens there is introduced a second counting wheel 10. The axle
of this wheel is also supported in bearings, but is placed a little higher and at an
angle with regard to the axle of the wheel 8. To one side of the said wheel 10 are
attached ten pegs 11 and there is placed on the contiguous side of the wheel 8 also a
peg 12. This peg 12 comes in contact with one peg of the wheel 10 at each
revolution of the wheel 8, and thereby revolves the wheel 10 one figure further.
Each wheel axle has at its outer end a square pin for the application of a key for
the purpose of setting the wheels on any required figure. Further by aid of the
same key the unit wheel can be set to a half turn, so that either the empty or the
loaded movements can be registered by the apparatus. The foot which is secured
to the under side of the platform of the crane, is preferably formed somewhat
sloping on both sides to ensure the proper action of the apparatus.
The apparatus hereinbefore described is set forth by way of example, and it is
possible to make various alterations in the details of the construction without
departing from the principle of the invention,

page_text: 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. An improved counting device for registering the number of motions of a crane
characterized by the provision of a foot on the under side of the crane platform
which depresses a presser bar (3) supported by a spring (2) and provided on its
upper end with a roller (4), which bar transmits its motions by aid of the piece (5)
to a suitable spur wheel (6), so that at every two motions of the piece (3) the unit
wheel (8) attached to the spar wheel (6) causes another figure to appear and after a
complete revolution of the said unit wheel (8) by aid of a suitable transmission the
ten wheel (10) is turned one figure forwards by aid of the pegs (11 and 12) so that
after the correct adjustment of the wheels (8) and (10) the number of loads of the
crane can be counted correctly as described.
2. The improved counting device constructed substantially as described and
illustrated in the accompanying drawing.
Dated this 8th day of August 1808
W. P. THOMPSON & Co.,
322, High Holborn, London, W.C., Patent Agents for the Applicant.