Year: 1886

page_text: I ROBERT SHARDLOW of 9 Hart Street New Lenton, Nottingham, do hereby
declare the nature of my said invention to be as follows:-
My invention relates to the construction of Venetion blinds and has for its
object to avoid the cumbrous & unsightly collection of the laths at the bottom
when the blind is drawn up in the usual manner, and in order to facilitate the
description of my invention I have appended a sheet of explanatory drawings in
which fig. I represents an elevation & figs. 2. 3. 4. 5 various details similar letters
indicating similar parts in all views.
The laths A are pivoted to suspenders B of leather or other suitable material by
pivots on the ends of the laths engaging with eyelets N of brass etc. in the
suspenders see figs. 3. 4. The suspenders are hung on short axles on the end of the
roller R and together with the laths wind on the roller. The roller R bearing in
brackets G G and pulley K is opperated by a leather or other band M which can
be wound round a suitable cleat H to fix the blind in any desired position. .
The angle of the laths can be adjusted as follows.
A vertical rod C has a number of projecting arms D with expanded spoon
like ends, the distance between the arms is equal to the distance between two
consecutive laths. The vertical rod may slide in bearings J and it is automatically
caused to rise by the spirial or other spring F when operated by the handle I.
The spoon like ends may be thrown in and out of gear with projecting fingers E
on each lath.
When in gear the spring F may cause the rod to rise and so adjust the laths, to
any angle.
I do not confine myself to the precise details shown but may modify them
without departing from the principle of my invention.

page_text: I ROBERT SHARDLOW of No. 9 Hart Street New Lenton, Nottingham Mechanic
do hereby declare the nature of my 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 the construction of Venetian blind and has for its object
to avoid the cumbrous and unsightly collection of the laths at the bottom when
the blind is drawn up in the usual manner and in order to facilitate the description
of my invention I have hereunto anexed two sheets of explanatory drawings in
which sheet I Fig. I is a front elevation showing blind partly raised. Fig. 2 side
elevation looking at the left of Fig. I and with L bearing removed Fig. 3 detailed
elevation of one lath Fig. 4 details.
Sheet 2, Fig. 1 end elevation.
"
2 front elevation of cord down and ratchet gear for holding blind
in any position. Like letters refer to like things in all the figures. The laths A
are pivoted to suspenders B, at each end consisting of metal links C eyeletted
together the pivots of the laths bearing in the eyelet holes and being secured by
nuts & etc. Each link has chain joints so as to allow the suspenders to fit close
to the roller when winding up as shown in fig. 2 the middle joint being midway
between any two laths. The suspenders are connected to the roller which consist
of three discs D on a central axle. The suspenders may be of leather with brass
eyelets but I prefer the metal-iron or brass-links.
On the axle of the roller is a cord pulley E in which winds the single operating
cord. The cord passes through a guide F in connection with lever G (fig. 2
sheet 2) haveing a pawl H engaging a ratchet wheel on the face of the cord pulley.
On pulling the cord the pawl is disingaged and the roller turns winding up the
laths, on leaving go of the cord the pawl drops of its own weight and engages the
ratchet so that the roller can no longer turn and the blind is held in the required
position.
The ends of the laths are guided between wooden strips K K the end of the
pivots work in the space between thus guiding the laths as shewn in detail fig. 3
sheet 1.
The angle of the laths is adjusted as follows. On the pivots of the laths at one
end are fixed projecting fingers L brass or iron Fig. 5.
A vertical rod M, wood or iron, slideing in brass iron or wood bearings at the
side and at the back, of the guides K has a number of spoon like arms iron or
brass projecting from it as shown in Fig. 2 of the drawing filed with my provisional
Specification.
These spoon like arms, which are fixed a distance apart equal to the distance
between the laths, engage the fingers L but they can be thrown out of gear by
turning the rod by the handle N. When the spoon like arms are in gear the
spring O automatically raises the rod M, altering the angle of the laths. The
rod M may be provided with suitable catches to hold the laths at any angle.

page_text: The laths are pivoted out of centre so. that they become vertical automatical
when the spoons are disengaged from the fingers.
One of the advantages of this invention is they will be far more durable and
can be worked with perfect ease haveing neither cords or tapes.
Having now particularly described & ascertained the nature of my inven.
tion & in what manner the same is to be performed I declare that what
I claim is
1st. In a Venetian blind, laths A pivoted to suspenders B both winding on a
roller D having an operating cord down E with ratchet gear for holding the blind
at any height, substantially as hereinbefore described & shown.
2nd. The method of adjusting the angle of the laths by means of the fingers L
the rod M with spoon like arms and spring O and handle N.
3rd. The combenation of roller D pivoted laths A suspenders B sliding rod M
ratchet gear F G H substantially as & for the purpose herein before described.