Improvements in Self-opening and Self-closing Umbrellas.
Year: 1897

page_text: Date of Application, 23rd Aug., 1897
Completo Cannifinatian Laft 7sh Mou 1000
سلسل-قم
1000
PROVISIONAL SPECIFICATION.
Improvements in Self-opening and Self-closing Umbrellas.
We, EDMUND SCHERFF, of 43, Ackerstrasse, and FRANZ REHDORFF, of 15,
Elisabethstrasse, both of Berlin, Kingdom of Prussia, German Empire, Manu-
facturers, do hereby declare the nature of this invention to be as follows:-
Our invention relates to improvements in self-opening and self-closing
umbrellas. The objects of our improvements are firstly to better secure the guide
of the sliding parts of such kind of umbrellas, and, secondly, to make the
thickness of the spring wire independent of the thickness of the tube walls as more
fully described hereinafter.
We attain these objects by the mechanism represented in the accompanying
drawing, in which
Fig. 1 is a longitudinal section through our improved umbrella.
Fig. 2 is a similar section, the parts being in another position.
Fig. 3 shows the tubes forming the body of the umbrella, without the cloth-
supporting and other rods or ribs, said tubes and their adjacent parts being drawn
on a larger scale and some portions of them being broken out in order to reduce
the length of the figure.
Fig. 4 shows the umbrella opened.
The handle r, Fig. 1, 2 and 4, of the umbrella is fixed to a tube a, Figures 1-4.
Within the latter is fastened a cylindrical block f, which has the purpose of support- .
ing the coil spring e. Above the latter a tube b, or, more precisely, a portion
thereof, is situated within the tube a and may be displaced within the latter.
The inner end of the tube is closed by means of a block f¹ and rests on the
springe which tends constantly to move the tube 6 out of the tube a.
To the block f is fastened a rod g, which freely penetrates the block f¹ and has
to its end fastened a stop f, the latter having the purpose to limit the outward
movement of the tube b.
The
The upper end of the tube b carries the top-notch c for the cloth supporting
ribs d and the braces that are connected to a set of auxiliary stretchers i.
latter are hinged at one end to small slides q arranged displaceably upon the
ribs d, and are hinged at their other ends to the upper end of a tube h that en-
compasses the tubes a and b. The other end of the tube h is provided with an
The tube h
aperture through which takes a catch o attached to the tube a.
This
carries a catch which takes into the projecting margin n of the runner m.
runner is provided with a bearing disk w, and a similar disk s is secured to the
upper end of the tube h. The auxiliary stretchers above mentioned are held
by: the disk w of the runner m, the other ends of said stretchers p are hinged to the
small slides q above mentioned.
Supposed the umbrella be closed (Fig. 1) the spring e is strained and prevented
from moving the tube b outward, i.e. from opening the umbrella by the catch /
taking behind the projection n of the tube m. The tube his prevented from
moving along tube a by means of a catch o. If, however, the catch n is released,

page_text: the runner m will glide along the tube h under the pressure of the spring e, in
that the force of the latter is transmitted to said runner m by means of the braces k
and the stretchers i and p being allowed to rise, also the cloth supporting ribs d
are allowed to rise and the umbrella gets thus opened.
There are no special means for keeping the umbrella in its opened position, in
that the spring
e after having effected said opening is not yet fully released.
There remains in said spring as much force as is requisite for making the opened
umbrella able to withstand the pressure of even a strong wind.
Before describing the manner of closing the umbrella we wish to call attention
to the fact, that in order to bring the parts dki and e into their former relative
position, it is not necessary to move these parts in exactly the reverse way, but
the same result may be obtained by moving with the braces k. This may be
obtained by uncoupling the tube h from tube a by means of the catch o and then
letting the tube h glide along the tube a in a direction to the top-notch c of the
tube b. It should be borne in mind that the rods d and p tend to turn the rods i
around the points of connection of said rods i with the rods k. The weight of the
tube h is not sufficient to withstand the counteracting of the rods and p and
of the longer arms of the rods i, together with the slides q and the cloth. If,
therefore, the tube 6 is uncoupled from the tube a the umbrella is instantly closed,
and all the parts assume the position shown in Fig 2. On the closing of the
umbrella the pawl / has automatically taken behind the projecting margin n so
as practicably to couple the tube b to the tube h and both these tubes are now
displaced along the tube a in the direction to the handle so as to compress or strain
the spring e, and all the parts are finally fixed in position by means of the pawl
coupling the tube h to the tube a. The umbrella is now .fit for being used in the
same way as before described.
Dated this 21st day of August 1897
0
Improvements in Self-opening and Self-closing Umbrellas.
We, EDMUND SCHERFF, of 43, Ackerstrasse, Berlin, Kingdom of Prussia,
German Empire, and FRANZ REHDORFF, of 15, Elisabethstrasse, Berlin, King-
dom of Prussia, German Empire, Manufacturers, do hereby declare the nature
of this invention and in what manner the same to be performed, to be particu-
larly described and ascertained in and by the following statement:―
This invention relates to self-opening and self-closing umbrellas, and has for
its object to effect an improvement in the following points:
Firstly in an improved bearing for the inner tube which slides to and fro upon
the interior of the outer tube. Our second improvement consists in locating the
spring within the inner tube instead of between the two tubes. Hereby, as is
apparent, we cause the thickness of the spring wire to be independent of the tube
walls or more precisely independent of the amount of space between the said tube
walls.
We attain these objects by the mechanism represented in the drawings left with
the Provisional Specifications, in which similar letters denote similar parts. through-
out the several views, and in which:
Figure 1 is a longitudinal section through our improved umbrella,
Figure 2 is a similar section, the parts being in another position,

page_text: Figure 3 shows the tubes forming the body of the umbrella, without the cloth-
supporting and other rods or ribs, said tubes and their adjacent parts being drawn
on a larger scale and some portions of them being broken out in order to reduce
the length of the figure.
Figure 4 shows the umbrella opened.
The handler, Figures 1, 2 & 4 of the umbrella is fixed to a tube a, Figures 1, 2 & 3.
Within the latter is fastened a cylindrical block f, which has the purpose of support-
ing the coil spring e. Above the latter a tube b, or more precisely, a portion
thereof is situated within the tube a and may be displaced within the latter.
The inner end of the tube b is closed by means of a block f¹ and rests on the
spring e which tends constantly to move the tube b out of the tube a.
To the block f is fastened a rod y, which freely penetrates the block f¹ and has
to its end fastened a stop f2, the latter having the purpose to limit the outward
movement of the tube 6.
The
The upper end of the tube b carries the top-notch c for the cloth supporting
ribs d and the braces k that are connected to a set of auxiliary stretchers i.
latter are hinged at one end to small slides q arranged displaceably upon the
ribs d, and are hinged at their other ends to the upper end of a tube h that en-
compasses the tubes a and b. The other end of the tube h is provided with an
aperture through which takes a catch o attached to the tube a. The tube h
carries a catch which takes into the projecting margin n of the runner m.
This
runner is provided with a bearing disc w, and a similar disc a is secured to the
upper end of the tube h. The one end of the auxiliary stretchers P above
mentioned is held by the disc w of the runner m, the other ends of said stretchers p
being hinged to the small slides g, above mentioned.
Presuming the umbrella to be in a closed position (Figure 1) the spring e
would be in compression and would be prevented from forcing the tube b in an
outward direction, i.e., from opening the umbrella by the catch 7 taking behind
the projection n of the runner m. The tube is prevented from moving
along tube a by means of a catch o. If, however, the catch n is released,
the runner m will glide along the tube / under the pressure of the spring e, in
that the force of the latter is transmitted to said runner m by means of the braces k
and the stretchers i and p being allowed to rise, also the cloth supporting ribs d
are allowed to rise and the umbrella gets thus opened.
There are no special means for keeping the umbrella in its opened position, in
that the spring e after having effected said opening is not yet fully released.
There remains in said spring as much force as is requisite for making the opened
umbrella able to withstand the pressure of even a strong wind.
Before describing the manner of closing the umbrella we wish to call attention
to the fact, that in order to bring the parts dki and e into their former relative
position, it is not necessary to move these parts in exactly the reverse way, but
the same result 'may be obtained by moving the auxiliary stretchers i around
their points of connection with the braces k. This may be obtained by un-
coupling the tube from tube a by means of the catch and then
letting the tube h glide along the tube a in a direction to the top-notch c of the
tube b. It should be borne in mind that the rods d and tend to turn the rods i
around the points of connection of said rods i with the rods k. The weight of the
tube his not sufficient to withstand the counteracting of the rods d and p and
of the longer arms of the rods i together with the slides q and the cloth. If,
therefore, the tube h is uncoupled from the tube a, the umbrella is instantly closed,
and all the parts assume the position shown in Figure 2. On the closing of the
umbrella the pawl has automatically taken behind the projecting margin
as practicably to couple the tube b to the tube h and both these tubes are now
displaced along the tube a in the direction to the handle so as to compress or strain
the spring e, and all the parts are finally fixed in position by means of the pawl o
coupling the tube h to the tube a. The umbrella is now fit for being used in the
same way as before described.
so

page_text: 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:
In self-opening and self-closing umbrellas, the combination of the tube a being
fastened to the handle r, with the tube b arranged displaceably within the former,
and the tube h arranged displaceably upon said tube a, and with the block f
fastened within said tube a, and the block f¹, fastened to the inner end of tube b,
a coil-spring e being arranged between the blocks f f¹, and with a rod g fastened
to said block f and penetrating block fl, a stop f being fastened to the end of
said red g. and with the runner m, auxiliary stretchers i, stretchers p and ribs d,
as and for the purpose described.
Dotal thin 6th dose of M 1000
F. BOSSHARDT & Co.,
4, Corporation Street, Manchester, Agents for the Applicants.