An Improved Cramp for Light Wooden Frames and the like.
Year: 1895

page_text: Date of Application, 6th Aug., 1895
Complete Specification Left, 5th May, 1896-Accepted, 1st Aug., 1896
An Improved Cramp for Light Wooden Frames and the like.
I GEORGE WILLSHIRE JOHNS of 9 Ambler Road, in the Parish of Islington,
in the County of London, Mechanic, do hereby declare the nature of this invention
to be as follows:-
My invention consists of a cramp to press to any required width at one operation
a number of light wooden frames as made and used under Letters Patent granted
me September 18th 1893 No. 17,527.
My plan is to form an iron table stand having two parallel ledge pieces length-
ways with the stand and at right angles to the top of it; one being fixed, the other
movable in a parallel direction and operated by screws working through brackets
attached to the top of the stand.
A stop piece of the required width of the frames is inserted between the parallel
ledges, so that the movable ledge can be screwed up to it, bringing any number of
frames placed between the ledges to the required width.
The principal feature in this improvement is the rapidity and accuracy with
which a number of light wooden frames can be made to one width at one
operation.
Dated this 6th day of August 1895.
An Improved Cramp for Light Wooden Frames and the like.
I, GEORGE WILLSHIRE JOHNS of 9 Ambler Road, in the Parish of Islington,
in the County of London, Blind Manufacturer, 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 consists of a cramp to press to any required width at one operation
a number of light wooden frames mainly for use as Venetian blind laths as made
and used under Letters Patent granted me, September 18th 1893, No. 17,527.
My plan is to form a table-stand of iron or other material having two parallel
ledge-pieces lengthways with the stand and at right angles to the top of it; one
being fixed and one movable in a parallel direction with the other and operated by
screws working through brackets attached to the top of the stand. Stop-pieces of
the required width of the frames are inserted between the parallel ledges, one being
fixed on a plane with the tablestand and the other placed on a plane with the top
of the ledge-pieces and made movable so as to allow of the frames being taken out
after pressure. The movable ledge is brought up to the stop-pieces, pressing any
number of frames placed between the ledges to the width required.
The principal feature in this improvement is the rapidity and accuracy
with which a number of light wooden frames can be made to one width at one
operation.

page_text: Reference is to be had to the accompanying drawings forming part of this
specification, wherein
Figure 1 is a side view of the cramp.
Figure 2 is an end sectional view of the cramp.
Figure 3 is a plan of the cramp.
The same letters of reference indicate like parts in all the figures.
In Figure 1, a and a 1 is a tablestand; b & 61 are pressure screws; c is a
movable ledge; d and d¹ are metal plates attached and grooved to movable ledge,
and grooved to the underside of fixed ledge and fixed stop piece, ensuring a parallel
movement of the movable ledge with fixed ledge.
In Figure 2, eis a. fixed stop-piece.; is a movable stop-piece.
Having now particularly described and ascertained the nature of the said inven-
tion and in what manner the same is to be performed, 'I declare that what I
claim is ;
The herein described cramp for pressing a number of wooden frames mainly for
use as Venetian blind laths to any required width at one operation, substantially as
specified.
Dated this 5th day of May 1896.
GEORGE WILLSHIRE JOHNS.
GEORGE WILLSHIRE JOHNS.