Counting Device for Presses, Stamp-hammers, and similar Reciprocating Machines.
Year: 1893

page_text: Date of Application, 28th July, 1893-Accepted, 28th July, 1894
COMPLETE SPECIFICATION.
Counting Device for Presses, Stamp-hammers, and similar
Reciprocating Machines.
1. WILHELM WESTEBBE, Jun., Tool Manufacturer, of Merscheid, near Ohligs,
Rhenish Prussia, in the German Empire, 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 present invention relates to a counting device intended to be attached to
presses, stamp-hammers, and similar reciprocating machines, and to count the
pieces subjected to the action of such machines, by recording the number of strokes,
so that the number of completed articles may at any time be readily ascertained.
In the accompanying drawings,
Fig. 1 represents a spindle press provided with a counter embodying my
invention.
Fig. 2 is a face view of the counter on a larger scale.
Figs. 3 and 4 show the same at different stages of operation.
Fig. 5 is a side elevation of the counter.
Fig. 6 is a vertical section of the dial train shown in Fig. 2.
Fig. 7 is a side elevation of the transmitting gear k, no, shown in Fig. 2.
Fig. 8 is a face view of the counter, after removal of the upper dial plate b.
The device may have one dial, or it may comprise (as do other similar appliances)
a series of dials, one for the units, another for the tens, a third for the hundreds,
and so forth; or, if preferred, a moveable number band may be employed. The
mechanism for establishing the required connection between the counting device,
and the stamp-hammer etc., of which it is intended to check the operation, may be
constructed and arranged as shown by Figs. 1, and 7.
In the arrangement shown, the transmitting gear chiefly comprises a pawl k,
secured to the stamp-hammer by means of an adjustable bearing n and adapted to
move along with it, as it rises and falls. In descending with the hammer, the said
pawl turns a disc a, provided at its periphery with the required number of teeth, and
either itself numbered, or adapted to impart motion to one or more dials. By each
downward movement of the pawl k, this disc or wheel a is turned through an angle
corresponding to the distance between two teeth; and to prevent it froin moving a
greater distance at a time, the pawl is so arranged, that, at each stroke, it once
engages with the teeth of a, and then immediately withdraws from the engagement.
For this purpose the said pawl is reduced in thickness at its lower end and
notched at d (Figs. 2 and 4), and into this notch a guide pins is adapted to enter
at a certain stage of the movement of the pawl. Only when the latter has
descended a sufficient distance, does this engagement of the pin s take place under
the influence of a spring, and not until then can the pawl meet, and get into gear
with, the toothed periphery of the wheel a; as, however, the pawl further descends,
it is forced back again, so that the pins disengages from the notch.
In the arrangement shown, the disc a is supposed to carry 100 circumferential
teeth, and to be numbered from 1 to 100 on its surface. When it has performed
one complete revolution, it causes another similar dial indicating the hundreds
from 100 to 10,000 and also provided with 100 teeth, to move one tooth space; the
two dials being thus arranged jointly to count 10,000 strokes of the machine.
retaining pawlt prevents the dial & from turning backward.
A
Motion is conveyed from the dial a to the dial b by means of a pin a' adapted to
come into contact with the lever h, pivoted to the base plate p of the counter.
This lever has a stud ; proiecting from its face, which stud sets in motion a lever e,

page_text: carrying a spring-pawl f, which engages with the teeth of the dial and thereby
causes it to turn the distance of one tooth. The lever e is carried back into its
normal position by a spring e' which is fixed to the extremity of the said lever and
adapted to press against a pin p' fixed to the base-plate p. is a plate fixed to the
base plate p and serving to support the pivots of the dial plates. r is a retaining
pawl for the plate a, Fig. 8. is a sector mounted on a screw m and provided with
two curved slots, to show the dials. This sector may have a zero mark or index
finger for the dials.
If desired, a bell may be arranged to strike, whenever the maximum number,
the device is capable of counting, has been attained.
Having now particularly described an ascertained the nature of the said
invention, and in what manner the same is to be performed, I declare that what
I claim is ;-
1. An attachment to presses, steam- or stamp-hammers or like machines,
comprising in its construction a dial or analogous counting device, adapted to be
operated or fed one tooth space at each stroke of the machine, substantially as
described.
2. For the purpose of so timing the action of the dials of the counting device,
that the said dials turn precisely the distance of one tooth at each movement, a
spring pawl, combined with a guide pin s, and cut away or notched in such a
manner that it can only engage with the teeth of the dial, when its notched portion
passes, or coincides with, the said pin, substantially as described.
3. Mechanism for transmitting the motion of the disc or dial a to another dial b,
chiefly comprising a pin a', a lever with stud i, a lever e, and a spring-pawl f,
substantially as described.
Dated this 28th day of July 1893.
FAIRFAX & WETTER,
433, Strand, London, Agents.