Improvements in Fasteners for Roller Blinds and the like.
Year: 1895

page_text: Date of Application, 20th Aug., 1895-Accepted, 19th Oct., 1895
COMPLETE SPECIFICATION.
Improvements in Fasteners for Roller Blinds and the like.
I OSKAR ROBERT FISCHER of Barmen, Germany, Cleferstrasse 53, Manu-
facturer 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 new and useful improvements in fastening devices for
roller blinds and the like that have some advantages before similar constructions
being in use. My apparatus firstly works without a toothed cramp and therefore
the cord can not be damaged, as it is freequently the case with such fasteners,
furtheron it is very cheap and looks elegantly when fixed to the wall so that it
preferably can be used for fine rooms.
On the accompanying drawing Figure 1 is a side view of the apparatus Figure 2
a front view of the same Figure 3 is a side view partly in section Figure 4 is a
cross section of the fastener.
My new cord fastener consists only of two parts, a cylindrical bolt a and a
cramping piece b. The bolt forming a solid piece is provided with a screw a¹ by
which it may be fixed to the wall.
Through the bolt is drilled a hole c of such width, that a usual cord may easy
run through.
In the outer end of the bolt is cut a circular slot in such a manner that the
periphery of the arc rests below the bolt surface and corresponds with the hole c.
Now in this slot the cramp 6 is placed and pivotted to the bolt so that it may be
turned for which purpose it carries a bittle button b'. The inner projection of the
cramp is wedge shaped.
The working of my new fastener is as follows.
The cord running through the hole of the fastener may be downwards pulled
freely but it is automatically and firmly held fast by the wedge shaped projection
of the cramp on account of the weight of the roller blind.
When turning the button b¹ of the fastener the projection is brought out of
contact with the cord and the roller blind may run downwards.
When fixing the apparatus to the wall in combination with a pretty shaped rose
of metal or wood, its elegant appearance serves for embellishing the room.
Besides this advantages my fastener is very cheap because it only consists of two
parts, which may be manufactured on revolving lathes.
The cord can never be damaged and may be used of any thickness.
The working of the button which instead of being pressed inwards must be
turned is very convenient.
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:
A fastener for roller blinds and the like consisting of a bolt a which by means
of a screw a¹ in combination with a rose is fixed to the wall and which carries in
its circular slotted free end a cramping piece b, which is linked to said bolt and

page_text: holds fast with its wedge shaped projection the cord but letting it free when being
turned by its button and allowing also the pulling down of the cord by hand.
Dated this 19th day of August 1895.
OSKAR ROBERT FISCHER,
By A. Dáumas,
Attorney.