Press for Copying Letters and Analogous Purposes.
Year: 1891

page_text: Date of Application, 14th July, 1891
Complete Specification Left, 13th Apr., 1892-Accepted, 14th May, 1892
PROVISIONAL 'SPECIFICATION.
A Press for Copying Letters and Analogous Purposes.
JAMES MCLAREN 35 Roslea Drive Dennistoun Glasgow Commercial
Traveller, do hereby declare the nature of this invention to be as follows:-
My press consists of a top and bottom platen of wood or metal, between which I
place the article (or articles) to which pressure is to be applied as shown in
accompanying drawing.
On the top platen I attach two fixed uprights "A." On pivots on, or pivot
holes in the said uprights, I pivot a drum "B" to which I attach the lever "C."
Passing round the top and bottom platens and through or attached to the said
drum "B" I place a flexible band (or bands) "D" made of cloth or other flexible
material.
To operate the press, I pull over the lever "C" in the direction shown by dotted
line in drawing. This has the effect of winding up the band "D" on the drum "B"
and the result is to draw the top and bottom platens together till the desired degree
of pressure is obtained.
As an alternative plan to Clauses 2 and 3, of the foregoing, I would dispense
with the drum and pivot the lever on or in the said fixed uprights and attach the
band to or pass it through a part of the lever a little above the pivots or fulcrum
and obtain the pressure by pulling over the lever as before described.
In order to adapt the press to take varying thicknesses of articles for pressure,
between the platens, I make the band "D" capable of being lengthened or
shortened by what is commonly known as a "slide," "E" or as an alternative by a
hook and eyes or other equivalent arrangements.
In order if necessary to hold the pressure on the press at any desired point, I
extend one of the pivots ("G") of the drum or lever through one of the
uprights ("A") making a screw thread on the extension and with a hand screw,
thumb screw or nut "" rotating on the said extension, I jam the drum or lever
against the said upright and thus hold fast the lever.
As a modification of the foregoing “holder on,” I woulḍ make the drum hollow
and adapt it to revolve on pivots cast on the uprights. In the hollow of the said
drum I cast a neck through which and extending through one of the pivots and
upright, I pass a headed bolt till the head catches on the aforesaid neck and with a
thumb nut screwing on the said extension I jam the lever or drum against the
upright as before described.
As a second modification of the "holder on " I would fix a ratchet and pawl on
one of the uprights so as to engage in teeth formed on the drum or lever or vice
versa fix the ratchet & pawl on the drum or lever so as to engage in teeth formed
in the upright.
Dated this 13th day of July 1891.
JAMES MCLAREN.
COMPLETE SPECIFICATION.
A Press for Copying Letters and Analogous Purposes.
JAMES MOLAREN 35 Roslea Drive Dennistoun Glasgow Commercial
Traveller, 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 press consists of a top and bottom platen of wood or metal between which I

page_text: place the article or articles to which pressure is to be applied as shown in
drawings accompanying Provisional Specification.
'
To the top platen attach two fixed uprights "A." On pivots on or pivot
holes in the said uprights I pivot a drum or spindle "B" to which I attach a
lever "C"
Passing round the top and bottom platen and through or attached to the said
drum or spindle or lever "B" or "C" I place a flexible band or bands "D"
made of cloth or other flexible material.
.
To operate the press, I pull over the lever "C" in the direction shown by
dotted lines in drawing. This has the effect of winding or levering up the
band "D" on or over the drum or spindle "B' and the result is to draw the top
and bottom platens together till the desired pressure is obtained.
As an alternative to Clauses 2 & 3 of the foregoing I would dispense with the
drum and pivot the lever on or in the said fixed uprights and attach the band to or
pass it through a part of the lever a little above the pivots or fulcrum and obtain
the pressure by pulling over the lever as before described.
In order to adapt the press to take varying thicknesses of articles for pressure
between the platens, I make the band "D" capable of being lengthened or
shortened by what is known as a slide or by a hook and eye or by a buckle or
other equivalent arrangement.
In order if necessary to hold the pressure on the press at any desired point, I
extend one of the pivots "G" of the drum or spindle or lever through one of the
uprights "A" making a. screw thread on the extension and with a hand screw,
thumb screw or nut "F" rotating on said extension I jam the drum or spindle or
lever against the said upright and thus hold fast the pressure.
As a modification of the foregoing "holder on" I would, make the drum hollow
and adapt it to revolve on pivots cast on the uprights. In the hollow of said
drum I cast a neck through which and extending through one of the pivots I pass
a headed bolt till the head catélies on the aforesaid neck and with a thumb. nut
rotating on said extension I jam the lever or drum or spindle against the upright
as before described:
As a second modification of the "holder on "I would fix a ratchet and pawl' on
one of the uprights.so as to engage, in teeth formed on the drum or lever or vice
versa fix the ratchet and pawl on the drum or lever so as to engage in teeth formed
on the upright.
Having now particularly described the nature of my said invention and the
manner in which it is performed, I hereunder declare that what I claim is―
As applied to a copying or other press, a lever with or without drum or spindle
attached rotating on pivots on fixed uprights or engaging in pivot holes in fixed
uprights substantially as and for the purpose herein described.
As applied to a copying or other press a screw threaded extension with hand or
thumb screw nut for holding on pressure substantially as & for the purpose
herein described.
As applied to a copying or other press of the foregoing description a ratchet &
pawl clutch for the purpose herein described.
As applied to a copying or other press a flexible band capable of being
lengthened or shortened by what is known as a "slide" or by a book and eye or by
a buckle or other equivalent arrangement substantially as and for the purpose
herein described.
A combination of lever (with or without drum or spindle), fixed uprights,
"holder on " & band adjustable or not adjustable substantially as and for the
purpose herein described."
10 i 1 1000