Improvements in Tell-tales and Counters.
Year: 1889

page_text: Date of Application, 1st Aug., 1889-Accepted, 22nd Mar., 1890
COMPLETE SPECIFICATION.
Improvements in Tell-tales and Counters.
I, OSKAR PAUL LOCHMANN, Engineer, of 7, Gohlis, Leipsic, Saxony, 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 :—
For
This Invention relates to an improved recording time detector, watchman's tell-tale,
or revolution counter, such as the recording or printing timepiece forming the
subject of my application No. 6958 of 1888 This instrument, having only an
hour-hand, does not indicate fractions of an hour with any precision so that the
time can be only approximately ascertained from the recorded impression
instance, if the hour hand be at 1 o'clock it cannot be ascertained from the
impression whether the latter was made a few minutes before or a few minutes
after 1 o'clock. Or, again, if the hand stands between the hour numbers, say
between 1 and 2, the want of precision in the record is still greater.
The improved instrument of this invention is illustrated in Sheet 1 of the accom-
panying drawings forming part of this Specification.
The object of the invention is to obviate the inconvenience above referred to, by
constructing the instrument with two dial plates juxtaposed, the one having a hand
for indicating hours and the other one for indicating minutes. By this means, the
minute at which the impression has been made can be accurately indicated
and, if desired, a third dial plate may be provided for indicating seconds.
A circle, for marking the date and month, may be combined with the hour hand
dial plate, as described in the aforesaid specification, or it may be arranged soparately
in any suitable way on that part of the casing of the instrument which carries the
printing type. This improved instrument may also, as described in the aforesaid
specification, be provided at the front side with ordinary dial plates for indicating the
time, the one for hours and the other for minutes, as at the stamping or printing
side, the hour and minute hand arbors passing across the case from one side to the
other and carrying corrosponding hands on their opposite ends, the transmissions of
motion from the minute, to the hour, hand being effected in the usual manner.
The Invention may also be applied to ordinary counting devices, and for this
purpose the plates furnished with printing types are arranged outside the counter
case on the axes indicating units, tens, hundreds, and so on.
Sheet 2 of the accompanying drawings, shows such a counting device. In this
counting apparatus which is of well known construction, a ratchet wheel is moved by
means of a lever, one tooth at each revolution. To one end of the shaft of this
ratchet wheel is secured a hand, and on the opposite end is arranged a second hand
forming a printing type and between them is a pinion gearing into a toothed wheel
having ten times the number of teeth.
Upon the shaft of this toothed wheel at opposite ends are mounted index and
printing hands respectively, like those of the first shaft. From this shaft the motion
is transmitted again in the ratio 10-1, to a third shaft and so on, each of these shafts
having index and printing hands on their ends. It will readily be understood that an
impression from this counting device indicates the number of revolutions.
counting device may also be combined with a watch for enabling the time to be
indicated by stamping by means of printing types. The state of the counting device
may be controlled or ascertained at any time by making an impression.
The
In employing the above described instrument as a watchipan's time detector, paper
strips are arranged in closed boxes at the different places to be visited at certain times
by the watchman who, in the course of his rounds, is required to make impressions on
the said strips by means of the recording or printing time piece.

page_text: Having now particularly described and ascertained the nature of the said inven-
tion and in what manner the same is to be performed, I declare that what I
claim is ;-
An instrument of the kind herein described having at one side of the case two or
more juxtaposed dial plates provided with printing types for yielding a printed record
and, at the opposite side, juxtaposed dials for indicating the time or the number of
revolutions and the like, the impression of the dial plates (forming stamping or
printing surfaces) indicating the hour and minute when the impression was inade, or
the number of revolutions or the like to be registered, and being produced upon a
suitable surface, substantially as set forth.
O. P. LOCHMANN.
By A. M. & Wm. Clark,
53, Chancery Lane, London, Patent Agents.