Year: 1887

page_text: сле мастаету снегого.
I, ALEXANDER TERTIUS HARVEY, of No. 23 Grange Road Middlesborough in the
County of York, Engineer, do hereby declare the nature of this invention to be as
follows:-
:-
My invention relates to an improved manufacture of split cottars or gibs whereby
a flat plate having double the length required for the cottar is first bent double by a
knife or
"Former" and is then passed first through compressing rollers and then
between compressing dies that press the two parts closely together and at the same
time mark the cottar with type.
For this purpose the material is first cut into blanks of the required shape, in a
punching or other suitable shaping machine, after which they are transferred to a
furnace to be heated, if not sufficiently ductile to bend cold. They are then placed
upon guides situated in front of the bending and compressing machine, and pushed
forward into position by a suitable instrument in the workman's hand, or otherwise.
A so-called "knife" or "Former," sliding in vertical guides and actuated by a crank
or cam motion, then descends and strikes the blank at the required point, be it the
middle of its length or otherwise, forcing it down between two small rollers situated
at such a distance apart that two thicknesses of the material besides the "Former
pass easily between thein. When the "Former" has reached the bottom of its stroke,
the material under manipulation is received by two larger rollers situated at the
distance of double the thickness of the material apart, and these rollers, seizing the
bent piece of metal, pass it down between them and deliver it to compressing slides or
dies below. The cottar, when falling from the rollers, is received upon a bottom
plate, which holds it between a fixed die and a horizontally sliding die, receiving
motion from a crank, eccentric, or cam, and which compresses the cottar between it
and the fixed die, and at the same time marks it with a typing die carried by it. At
the same time, a second sliding die, moving in guides at right angles to the first.
named one,
is advanced against the outer edge of the cottar, and compresses this between
it and an abuttment at the inner edge of the cottar. This edging die may be

page_text: conveniently actuated by the motion of the facing die, a lever carried by the framing
being connected at one end to the edging die and bearing with a roller against a cam
surface on the facing die. The latter being withdrawn, and the edging die being also
moved back by a spring, the bottom plate on which the cottar rests is also made to
slide back by an eccentric, whereupon the cottar falls down into a receptacle below.
In order to prevent the cottar from adhering to the sliding facing die as it moves
back, a pin fixed to a bracket on the framing and situated in a recess in the die
projects through a hole in the face of the die as this recedes and thus pushes the cottar
from off it.
In some cases the first named small rollers through which the "Former" pushes
the blank may be dispensed with, the "Former" being made to bend the blank and
push it directly between the compressing rollers.
Dated this 9th day of February 1887

page_text: Improvements in the Manufacture of Split Cottars or Gibs and in
the Machinery therefor.
1, ALEXANDER TERTIUS HARVEY of No. 23 Grange Road Middlesborough in the
County of York, 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 :-
My invention relates to an improved manufacture of split cotters or gibs, whereby
a flat plate having about double the length required for the cotter is first bent double
by a knife or former and is then passed through compressing rollers and between
compressing dies that press the two parts closely together and at the same time when
required mark the cotter with type. I will describe the construction and oporation of
apparatus for this purpose referring to the accompanying drawings. Fig. 1 is a side
view of the blank for à cotter cut or punched from a sheet or hoop of metal, and
Fig. 2 is a side and an edge view of the finished cotter. Fig. 3 is a front view of the
forming machine, Fig. 4 is a part section with parts in front removed to shew the die,
and Fig. 5 is a vertical section through the die and hammer.
The blank G shaped as shewn in Fig. 1 is heated if necessary and laid with its ends
resting on two angle irons A and its middle part bearing on two round bars or rollers B
above a pair of rollers C which are driven by gearing from a shaft D. A crank on
this shaft is linked to one end of a lover E the other end of which works a vertical
slide carrying the knife or former F. As the crank on D revolves the former F
descends and bends the blank G as indicated in Fig. 4 forcing the bend down between
the bars B and into the grip of the rollers C which squeeze the two sides of the folded
blank together. From the roller C the squeezed blank descends into the space between
a fixed bolster H and a horizontally moving die J driven by an eccentric on the shaft D.
When the blank is in this space, as indicated at G Fig. 5, a hammer blade K which
had been drawn away by an incline on the face of a wheel M (that is geared to D)
is suddenly released and is made by springs L to deliver a blow on the edge of G so
as to set the two sides of the folded blank true with one another; on the retreat of the
hammer K the die J advances and squeezes the cotter between it and the bolster H,
and at the same time when required type punches projecting from the face of the die J
imprint on the side of the cotter such marks as are desired. A slide N, which is
worked from an eccentric on D, now retreats leaving open the bottom of the space
between H and J, and the die J now retreating leaves the finished cotter free to drop
through the opening left by retreat of the slide N. As the cotter may tend to adhere
to the face of the die J and to retreat with it, a pin P, fixed to a bracket projecting
from the framing behind the die J, passes through a hole in J, and this pin arrests the
cotter during the retreat of J separating it from J and leaving it free to drop.

page_text: Having now particularly described and ascertained the nature of this invention
and in what manner the same is to be performed, I declare that what I claim is :-
1. The herein described method of manufacturing split cotters or gibs by cutting or
punching a blank from sheet metal or hoop, bending this blank in the middle by a
knife or former and compressing the two parts together between rollers and
dies.
2. For manufacturing split cotters or gibs in the manner referred to in the preceding
claim, the construction and use of apparatus substantially as described with reference
to the accompanying drawings.
Dated this 31st day of October 1887.
ABEL & IMRAY,
Agents for the Applicant.