RESERVE CO the Operations or Apparatus for Folding Envelopes and Articles of Paper.
Year: 1888

page_text: Date of Application, 9th Aug., 1888
Complete Specification Left; 20th Apr., 1889
Complete Specification Accepted, 25th May, 1889
RESERVE CO
the Operations or Apparatus for Folding Envelopes and
Articles of Paper.
I CARL BLANKE of Barmen, Rhenish Prussia in the Empire of Germany Engineer,
do hereby declare the nature of this Invention to be as follows:-
My said Invention relates chiefly to apparatus employed in folding paper envelopes.
In a common type of envelope folding machine the envelope when folded or partly
folded is released from the folding apparatus by an oscillating plate which delivers
the folded envelope, this plate working in and out of a gap existing in the table
of the machine. To this oscillating plate I pivot two fingers having flat ends
which under ordinary conditions pass freely at each stroke of the oscillating plato
through gaps formed in a blade which is pivotted in bearings which are carried
by but are insulated from the table. One or both of these bearings is or are
connected to one pole of a battery or magnet and the table is connected to the
other. The pivoted blade is made of such a breadth that when turned so as to
touch the table the electrical circuit is completed. I arrange a battery or magnet
at another part of the framing and cause a stop to be withdrawn when the electrical
circuit is completed the said stop releasing a weighted lever which in its turn
withdraws a prop from a second-weighted lever which operates the belt fork lever
and shifts the driving strap from the fast to the loose pulley and so stops the
machine. The electric circuit is completed and the machine stopped in the following
manner. So long as the folding, apparatus works without making a fault, the
broad tips of the fingers on the oscillating plate pass freely to and fro through the
gaps in the aforesaid pivotted blade at each stroke of the plate and do not disturb
the blade. But when a fault is made in the folding the envelope or sheet is not
released from the plate when it drops but is held and carried back by the plate
on its upstroke. The edge of the faulty sheet or envelope projects past the edge

page_text: of the plate and in front of the said finger tips, so that when the said tips come
opposite to the gaps in the blade they, cannot pass through because of the paper
but by pressing on the blade they turn it down until its edge rests upon the table
whereby the electrical circuit is at once completed the stop withdrawn and the machine
arrested. By this means the waste of material and the risk of breakage to the 5
machine which would arise if the apparatus were to go on in its defective condition is
avoided and the attention of the operator is at once called to the fault.
Dated this 8th day of August 1888.
DUTTON & FULTON,
1, St. James Square, Manchester,
Agents.

page_text: COMPLETE SPECIFICATION.
An Improved Electrical Stop Motion for Automatically Arresting
the Operations of Apparatus for Folding Envelopes and similar
Articles of Paper.
1 CARL BLANKE of Barmen, Rhenish Prussia in the Empire of Germany, Engineer,
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 and accompanying drawings :—
My said Invention relates chiefly to apparatus employed in folding paper envelopes.
In a common type of envelope folding machine the envelope when folded or partly
folded is released from the folding apparatus by an oscillating plate which delivers the
folded anvelope, this plate working in and out of a gap existing in the table of the
machine. In connection with this oscillating plate I arrange means whereby when
the envelope is not discharged from the plate, by reason of faulty folding or from other
causes an electric circuit is completed or brought into action so as to stop the machine
before it can be damaged or before wasting more material as must necessarily happen
if the machine continued to work.
In order that my said invention may be properly understood I will now proceed
more particularly to describe the same with reference to the annexed two sheets of
drawings. In these drawings only those parts of the machine which are affected by
my invention are shown, as the other parts of the machine relating to the feeding of
the paper and the cutting and folding of the same into envelopes do not in the present
case call for notice.
gap
in
Fig. 1 is a sectional view of a portion of the table F of the machine showing the
oscillating plate S which is situated at the end of a rocking lever as shown and which
at times occupies the gap in the table F when receiving an envelope and at times siuks
into the position marked in dotted lines when delivering a folded envelope. Fig. 2 is
a plan view of Fig. 1 seen from the under side. Fig. 3 is a side view of the table
showing the levers and parts which effect the automatic stopping of the machine.
Fig. 4 is a plan of the same and Fig. 5 is a section of Fig. 3 at the line A. B. As
has been said, during the working of the machine the plate S at times fills the
the table F and at times falls into the dotted position. The object of invention
my
is that when an imperfectly folded or otherwise faulty envelope is made, or from
some other cause does not fit the plate S and sticks thereto instead of becoming
disengaged when the plate S sinks, then when the plate returns the adhering
envelope moves a part and by completing an electric circuit operates weights and
levers and stops the machine. The plate S carries pivotted fingers t kept up by a
spring and having broad tips which pass through gaps cut in a plate k pivotted
in bearings the plate being held in a horizontal position by a spring as shown.
The bearings are insulated from the table F as shown in Fig. 1. and are connected
to a battery by a wire or wires as shown in the same Fig. When the plate S

page_text: discharges the envelope it carries and returns empty, the broad tips of the fingers t
pass through the gaps in the plate k and do not affect it. But if the faulty envelope
returns with the plate S it gets between the finger tips and the pivotted plate k
and turns the plate k till it touches the table F thereby causing electrical communi-
cation between the bearings and the table F. Another wire communicates with
the electro-magnet E, E Figs. 3, 4 and 5. This part of the apparatus is mounted
upon a bracket G and consists of the following parts. In juxta-position to the
electro-magnet E, E I pivot a lover a held by a spring at a moderate distance
from the electro-magnet and not affected thereby when the magnet is quiescent.
At the other end of the lever a is a stud d which passes through a bracket z and
projects beneath and supports the pivotted weighted lever S. The tail S¹ of this
lever props up the tail of another pivotted lever / having a weight o. In this
tail is a slot which is occupied by a stud projecting from the bar u which.
carries the belt guides g. g. It will be evident that if the prop S¹ is withdrawn
from supporting the part the weighted lever will drop and will move the bar u
and belt guides in the direction of the arrow (Fig. 3) so as to move the driving strap
from a fast pulley to a loose one and so stop the machine. The operation is as follows.
When the return of a faulty envelope turns the pivotted plate k against the table F
and so completes the electric circuit, the electro-magnet becomes active and attracts
the bar a, thereby turning it on its pivot and withdrawing the stud d and allowing
the lever S to fall. The tail S¹ is thus removed from in front of the tail h³ which
being thus deprived of its support allows-the-weighted- lover h to fall and. by moving
the tail to move the bar u and belt guides g. 9 whereby the machine is stopped..
น
By the hereinbefore automatic means for stopping the machine, I avoid waste of
material and the risk of breakage of the machine which would arise if the apparatus
were to go on in its defective condition, while the stopping of the machine at once
calls the attention of the operator to the mishap.
Having now particularly described and ascertained the nature of my said inven-
tion and in what manner the same is to be performed I declare that what I
claim is :-
(1) In apparatus for folding envelopes and similar articles of paper the arrangement
and combination of parts for automatically stopping the apparatus in the event of a
fault being made, substantially as described and shown.
(2) In apparatus for automatically stopping machines of the indicated type the
fingers t pivotted to the oscillating plate and arranged (in the event of a fault) to
operate a plate k or similar device which is supported in insulated bearings the said
bearings being connected to a battery, substantially as described and shown.
(3) In apparatus of the indicated nature the means for freeing the weighted lever h
and so effecting the shifting of the driving strap, the said means consisting of an electro-
magnet FE, lever a, stud d, and weighted lever S. S¹, in combination with the
arrangement for completing the electric circuit by the agency of the oscillating
delivery plate, substantially as hereinbefore described or any mere modification thereof.
(4) The application of electricity to the automatic stoppage of apparatus for folding
envelopes and similar articles of paper by the means and substantially as hereinbefore
described and shown.
Dabad thin 10th def A1 1000
DUTTON & FULTON,
1, St. James Square, Manchester,
Agents.