An Improvement in Rotary Round-hole Perforating Machines for Perforating or Punching Paper or like substances.
Year: 1891

page_text: Date of Application, 7th Dec., 1891
Complete Specification Left, 2nd Sept., 1892-Accepted, 7th Dec., 1892
PROVISIONAL SPECIFICATION.
An Improvement in Rotary Round-hole Perforating Machines for
Perforating or Punching Paper or like substances.
WILLIAM HENRY LATHAM Ridgway Gates Bolton Lancashire Engineer &
Machinist do hereby declare the nature of this invention to be as follows:-
The discs in the ordinary manner are held in position by a set screw (see Patent
taken out March 12 1862 No. 667) which presses on to a key, which presses on
the shaft. In the improvement suggested I enlarge the hole inside to allow a:
spiral spring to go round the setscrew so it will allow the spring to press on the.
key the screw may be tightened or loosened, or I form a key in two parts with two
spiral springs between which answers the same purpose. On the shafts 1 place two
wheels one on each shaft. Two other wheels gearing together and gearing
into those two so that the upper shaft may be raised until the punches are out of
gear. Two of the wheels are in two parts with an eccentric stud between them
namely Each wheel is composed of two parts, half the breadth or thickness of
the other wheel in which it works. A hole is bored through one of the half wheels
and a slot is sunk into the other wheel opposite the hole. In the said hole is a
stud having a collar on the one side which protrudes and engages into the slot of
the other wheel. This collar is eccentric with the stud. There is a nut on the
outside of the wheel with the hole in, so by turning this stud a little it moves the
one half-part of a tooth forward thus making a thicker tooth, which takes up any
slackness in the wheels geared. When turned far enough the nut may be screwed
tightly up thus fastening the two half wheels together as one.
Dated this Fifth day of December 1891.
W. H. LATHAM.
COMPLETE SPECIFICATION.
An Improvement in Rotary Round-hole Perforating Machines for
Perforating or Punching Paper or like substances.
I, WILLIAM HENRY LATHAM, Engineer, Ridgway Gates, Bolton, Lancashire,
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:-
Improvement in rotary round-hole perforating machines, for perforating or
punching paper, or like substances.
a
'
This invention relates to the method of securing the bosses, which carry
the rings with holes in and punches. In place of a set screw as shown at A
Fig. 1 I recess a hole in the boss of the wheel B Fig. 2, in which I place
spiral spring C. Fig. 2 which acts on a key D Fig. 2-the key pressing on
the shaft, and the spring pressing between the key and the hole in the boss,
causes it to hold the wheel in position on the shaft; this is on the lower shaft,
which carries the bosses having holes in-in which the punches work.
In the upper
shaft I put a groove, for the key E Fig. 3 to fit into, with a spring inside the
boss as before; which allows the wheel to be turned along with the shaft; but the .
spring acting on the key, allows the wheel to move sideways either way, and still
have sufficient holding power to prevent it being moved by the paper, whilst being
perforated, but could he readily pushed sideways by the hands to any distance
required.

page_text: I put four wheels geared together lettered F G H I Fig. 4. for the purpose of
allowing the shaft J Fig. 4. to be lifted out of gear with the lower shaft. The
wheel F Fig. 4, is placed on the lower shaft to which it is secured by two set
screws as shown at Fig. 4.
The wheel G Fig. 4. runs on a stud as does also the wheel H Fig. 4.
The wheel I Fig. 4 is placed on the upper shaft in which are the punches and is
secured by two set screws as shown in Fig. 4. thus allowing the upper shaft to lift
the punches out of gear and return to the same holes again when closed down-the
wheels and bosses turning and allowing the paper or other substances to pass
through unperforated the length required-when the shaft comes down again and
puts the punches into the bottom holes-thus commencing to perforate for any
length required.
Two of the wheels I and G Fig. 4 are made in two parts as at K Fig. 5. one
as L the other as M Fig. 5. At N, Fig. 5 is a stud with eccentric collar shown
at O Fig. 5, this is for the purpose of moving the wheels by being turned; the
eccentric part working in the slot P Fig. 5, when the teeth move forward any
slackness in the wheels is prevented. The wheels are secured together by the
bolt QFig. 5. two of these double wheels are used in a set of four. A three
cornered shaft is preferable for the upper wheels. In this case a spring key of
the form R Fig. 6 is used this allows the wheels to be pushed sideways to any
distance required-this key R Fig. 6 is made with two annular grooves in each
part as shown in S Fig. 6.
Two spiral springs are placed in these annular grooves and two screws T T Fig. 6.
prevent them opening them too wide. The spring can be pressed close if required
and keeps the grip of the wheels on the shaft. In Fig. 7. the wheel H works on a
stud on the end of a shaft U Fig. 7 which crosses over the machine on each end
of which are placed two levers marked V Fig. 7. one of which is connected to the
lever W Fig. 7 by the link Y Fig. 7. On the side of the machine is placed the
wheel A Fig. 7. which revolves on a stud B Fig. 7-the section of the wheel is
shown at Fig. 8. Into this wheel is geared the wheel C Fig. 7. In Fig. 7 the
lever D carries a wheel E Fig. 7. on the end of a roller F shown at Fig. 10.
When the lever D Fig. 7 is allowed to fall by the latch G Fig. 9 being pushed off
the stud Z Fig. 9 by the lever K Fig. 9, the wheel E Fig. 7 falls into gear with
the wheel C Fig. 7 thus setting in motion the wheel A. Fig. 7 until the stud P
Fig. 7 meets the bowl Q Fig. 7 raising the lever W Fig. 7 and so raising the
shaft J Fig. 7 which takes the punches out of gear. When the lever W Fig. 7 is
raised the latch S Fig. 7 keeps it up until a stud T Fig. 7. catches against the
latch S Fig. 7 and allows the lever W Fig. 7 to fall, putting in gear the punches
again. Any number of studs as Z, P and T Fig. 7 may be placed in the slots to
give the required length of perforation and non-perforation. A' is a weight on one
end of the lever V Fig. 7 to counterbalance the weight of the shaft J Fig. 7 and
perforating wheels. To ensure correct perforation I place two stops B₁ Fig. 7 in
connection with the lever D Fig. 7 so that when the lever D Fig. 7 falls, the
paper, which has been placed against the stops, is taken in by the roller F. Fig. 7
and a roller on the end of which has been placed the wheel M Fig. 7.
Fig. 11 represents one of studs Z, P, T. It is made in two parts, with a spring
and piston in one part so as to be able to be moved at right angles. When in this
position, the studs will pass all the levers, without moving them, allowing machine
to run without stopping so as to perforate a whole sheet. The center of lever V
may be placed on shaft U or opposite point of contact of wheels H, G, Fig. 4 as
may be convenient.
Having now particularly described and ascertained the nature of my inven
tion and in what manner the same is to be performed; I declare that what I
claim is,
The planine

page_text: shown; with two wheels in two halves to take up any slackness in the teeth of the
gearing.
The studs placed in wheel A, Fig. 7. made to turn down at right angles.
The two levers placed on shaft U Fig. 7.
Dated this 21st day of November 1892.
WILLIAM HENRY LATHAM,
Ridgway Gates, Bolton, Lancashire, Engineer.