IMPROVEMENTS IN THE CONSTRUCTION AND ARRANGEMENT OF APPARATUS FOR RECORDING THE TIME of WorkMEN, WATCHMEN, AND OTHER PERSONS
Year: 1879

page_text: PROVISIONAL SPECIFICATION loft by Otto Eisele at the Office of the
Commissioners of Patents on the 9th December 1879.
OTTO EISELE, of Spencer Street, Goswell Road, in the County of Middlesex.
"IMPROVEMENTS IN THE CONSTRUCTION AND ARRANGEMENT OF APPARATUS FOR
RECORDING THE TIME of WorkMEN, WATCHMEN, AND OTHER PERSONS."
This Invention consists in improvements in the construction and arrangement of
apparatus to bo employed in connection with clocks or clockwork mechanism, for
the purpose of recording the time at which workmen arrive and leave, the periods
at which watchmen visit the particular spot where the apparatus is situated, and
for other analogous purposes.
A cylinder of any suitable diameter is mounted in bearings in such a manner
as to be free to revolve. One end of the spindle of the said cylinder is provided
with a toothed wheel into which gears a wheel connected with and actuated by the
clock-work mechanism. When it is desired to employ the apparatus for a portion
of the day only, part of the periphery of the last mentioned wheel is made plain.
For instance, if it he desired to employ the apparatus for twelve hours a day,
the said wheel is arranged, as will be well understood by persons conversant with
similar mechanism, to inake one revolution in every twenty four hours, and one
half of the periphery thereof is made plain, and the other half is provided with
teeth, so that it acts on the wheel on the spindle of the cylinder during half
of its revolution only, that is to say, for twelvo hours.
On a drum arranged parallel to the axis of the cylinder is rolled a band of
paper or other suitable material, the free end of which is passed over the cylinder,
the paper being pressed against the latter by means of a roller which is acted
upon by springs, so that as the said cylinder revolves it causes the paper or
other material to be wound off the drum. In some cases the paper or other
material is mounted on the circumference of the cylinder, or one end of the paper
is connected to the latter, so that it is wound on the same as it is taken off
the drum.
The whole of the above described mechanism is enclosed within a case which is
provided with a series of apertures arranged opposite to and in line with the
length of the cylinder. The speed of the drum is so regulated that a certain and
known length of paper will pass over the same in a given time, so that on a man
arriving at his work, he has only to pass a pencil through bis particular aperture,
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page_text: and make a mark on that portion of the paper which is immediately opposite, and
on leaving he again makes a similar mark, and when it is desired to ascertain the
amount of time during which the said man has been at work, the paper wound off
by the cylinder is detached, and the spaces between the various marks are measured,
or the paper is divided into certain spaces which represent periods of time as
marked, by which means the exact time at which the man arrives and leaves can
be readily ascertained.
The said apertures are by preference all made of different shapes, so that the
paper cannot be marked opposite a particular aperture unless the person desiring to
do so has the corresponding marking instrument. Instead of employing a pencil to
mark the paper, as hereinbefore described, a pointed instrument is sometimes used,
or a sheet of some material prepared with lead, or a coloring substance is interposed
between the paper and the apertures, so that by passing the key through an
aperture, and pressing the said sheet at that point against the paper, the latter will
be marked.