Improvements in and connected with Curtain-holders.
Year: 1896

page_text: PROVISIONAL SPECIFICATION.
Improvements in and connected with Curtain-holders..
I, CARL LENZ, of 25 Bleicher Weg of Zürich, Switzerland, Mechanic do
hereby declare the nature of this invention to be as follows:-
This invention refers to curtain holders of that kind in which the fastening of
the holder to a wall is to be effected by a pneumatic device adapted to cause a
My
vacuum in a space or chamber provided within the foot of the holder.
improvements in curtain holders of said kind relate to certain combinations and
arrangements of parts as are all more fully described hereinafter, and the object of
my improvements is to effect the fastening of the holder in a most simple manner,
or by most simple means respectively.
In order to make my invention more clear, I refer to the accompanying drawing,
in which I have shown a longitudinal section through a curtain holder constructed
according to my invention. Said curtain holder is constructed as follows:
The curtain holder proper consists of the foot a the shank a¹ and the head dd',
which latter in the form of construction shown consists of two parts (d and d').
Said head is screwed unto a wooden bolt c, the greatest portion of which is situated
within the shank a', and may be displaced within said shank.
The base portion of the foot a is provided with a chamber or cavity, into which
is inserted an elastic body or box b consisting of india rubber or a similar material
and adapted to afford a practically perfect tightening between the foot a and
the wall which the curtain holder is to be fixed to. The box b contains a piston p
which is rigidly connected with the wooden bolt e afore mentioned by a pin c.
The length of the bolt c is so chosen, that the inner end-surface of the bolt is
as far distant from the opposite or front surface of the foot a as is the piston p
from the wall, provided all parts of the curtain holder be in their normal
position. If, therefore, the two parts of the head d d' are loosened or unscrewed
for a distance corresponding to one or the other of the two distances just
mentioned, the bolt c together with the piston p may be displaced in the
direction to the foot a, or, more precisely, to the base of said foot respectively,
so as to cause the piston p to lie flush with the base portion of the elastic
casing or box b. Supposed, the movable parts just mentioned be in this position,
and the whole curtain holder be held against the wall, then the curtain holder
may be securely fixed to the place chosen by turning the head d d', or at first
the part d only of the head, back into their or its normal position so as thereby
to cause a displacement of the bolt or piston rod c, as well as of the piston p, in
the reverse way. The piston p is thus drawn inwards, or into the elastic box b
respectively, and there is thus produced a vacuum within said box, or between the
piston and the wall respectively.
the
I prefer to draw the piston inwards, or the wooden bolt or piston rod c
outwards, only by the part d of the head, and to secure the parts c and d in their
proper relative position by then screwing the part d' of the head against the part d.
But I wish it to be understood, that I do not confine myself to letting the head
consist of two parts, as it will be sufficient in many cases if the two parts d d are
made in one piece.
I prefer, further, to arrange a conical packing body 6 between the shank of the

page_text: pin c¹ and the opposite portion of the elastic body b. The height of said packing
ring is a little greater than the space to be filled by this ring, and the purpose of
said greater height is to enable the piston p to effect automatically a tightening
around the shank c', when said piston has nearly reached the inner end of its
path. On pressing the piston p outwards, the inner end-surface of the bolt c
pushes upon the projecting portion of the packing ring b', and causes a slight
displacement of the same. A similar displacement, but in the reverse direction, is
thereafter caused by the piston p, as just described.
Dated this 27th day of June 1896.
I, CARL LENZ, of 25 Bleicher Weg, of Zürich, Switzerland, Mechanist 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:-
This invention refers to curtain holders of that kind in which the fastening of
the holder to a wall is to be effected by a pneumatic device adapted to cause a
vacuum in a space or chamber provided within the foot of the holder. "My
improvements in curtain holders of said kind relate to certain combinations and
arrangements of parts as are all fully described hereinafter, and the object of my
improvements is to effect the fastening of the holder in a most simple manner, or
by most simple meaus respectively.
In order to make my invention more clear, I refer to the drawing sent in with
Provisional Application, in which I have shown a longitudinal section through a
curtain holder constructed according to my invention. Said curtain holder is
constructed as follows:
The curtain holder proper consists of the foot a, the shank a¹ and the head d d¹,
which latter in the form of construction shown consists of two parts (d and d¹).
Said head is screwed unto a wooden bolt c, the greatest portion of which is situated
within the shank a', and may be displaced within said shank.
The base portion of the foot a is provided with a chamber or cavity, into which
is inserted an elastic body or box 6 consisting of india-rubber or a similar material
and adapted to afford a practically perfect tightening between the foot a and the
wall which the curtain holder is to be fixed to. The box b contains a piston
which is rigidly connected with the wooden bolt c afore mentioned by a pin c.
The length of the bolt c is so chosen, that the inner end-surface of the bolt is as
far distant from the opposite or front surface of the foot a as is the piston p
from the wall, provided all parts of the curtain holder be in their normal
position. If, therefore, the two parts of the head d d' are loosened or unscrewed
for a distance corresponding to one or the other of the two distances just
mentioned, the bolt e together with the piston p may be displaced in the direction
to the foot a, or, more precisely, to the base of said foot respectively, so as to cause
the piston p to lie flush with the base portion of the elastic casing or box b.
Supposed, the movable parts just mentioned be in this position, and the whole
curtain holder be held against the wall, then the curtain holder may be securely
fixed to the place chosen by turning the head d d', or at first the part d only of the
head, back into their or its normal position so as thereby to cause a displacement

page_text: of the bolt or piston rod c, as well as of the piston p, in the reverse way. The
piston p is thus drawn inwards, or into the elastic box respectively, and there is
thus produced a vacuum within said box, or between the piston and the wall
respectively.
I prefer to draw the piston p inwards, or the wooden bolt or piston rod c
outwards, only by the part d of the head, and to secure the parts c and d in their
proper relative position by then screwing the part of the head against the
part d. But I wish it to be understood, that I do not confine myself to letting the
head consist of two parts, as it will be sufficient in many cases if the two parts d d'
are made in one piece.
I prefer, further, to arrange a conical packing body 1 between the shank of
the pin and the opposite portion of the elastic body b. The height of said
packing ring is a little greater than the space to be filled by this ring, and the
purpose of said greater height is to enable the piston p to effect automatically
a tightening around the shank c', when said piston has nearly reached the inner end
of its path. On pressing the piston p outwards, the inner end-surface of the bolt c
pushes upon the projecting portion of the packing-ring, and causes a slight
displacement of the same. A similar displacement, but in the reverse direction, is
thereafter caused by the piston p, as just described.
Having now particularly described and ascertained the nature of my said
invention, and in what manner the same is to be performed, I declare that what I
claim is :-
1. In a curtain-holder, the combination with the foot, and the shank of the
holder, of a piston arranged within a suitable cavity at the base of said foot; a rod
secured to said piston, and extending through said shank; and a handle forming
the head for the holder, and being adapted to be attached to said piston rod, and to
effect a longitudinal movement of the same, as well as of the said piston, for the
purpose as described.
2. In a curtain holder having an elastic foot, a cavity provided within the latter
and opening to the base surface of the same, a piston arranged within said cavity,
a rod secured to said piston and passing through the top-part of said foot, and
means for longitudinally displacing said rod, the combination with the latter and
with the portion of said top part surrounding said rod, of a conical packing situated
between the latter and said portion; said packing exceeding in length the thickness
of the said top-part, and means for longitudinally displacing the said packing,
substantially as described.