Improved Means or Appliances for Application to the Legs of Chairs, Tables, and like Furniture, for the Purpose of Adinsting the Longth of such LocaTURE FOR THE PURPOSE OF ADJUSTING THE LENGTH OF SUCH LEGS
Year: 1884

page_text: Improved Means or Appliances for Application to the Legs
of Chairs, Tables, and like Furniture, for the Purpose of
Adinsting the Longth of such Loca
"
I, GERARD WENZESLAUS VON NAWROCKI, Proprietor of the firm of J. Brandt
and G. W. von Nawrocki, Patent Solicitor and Civil Engineer of 124 Leipziger-
strass, Berlin, Germany, do hereby declare the nature of the said Invention for
IMPROVED MEANS OR APPLIANCES FOR APPLICATION TO THE LEGS OF CHAIRS,
TABLES, AND LIKE FURNITURE FOR THE PURPOSE OF ADJUSTING THE LENGTH
OF SUCH LEGS" and in what manner the same is to be performed, to be particularly
described and ascertained in and by the following statement:-
This Invention relates to a device for lengthening the legs of tables, chairs or
other articles of furniture so as to enable the same to be securely fixed or placed in
position, however uneven the floor upon which they stand may be.
The shaking of tables and chairs, caused by unevenness of the floor or unequal
wear of the supporting legs, is obviated by this Invention.
It consists essentially in a sleeve, provided at the bottom of the table leg, in
which is arranged a vertically moveable pin or bolt capable of being drawn out
of the sleeve according to requirement and of being fixed by a clamping device.
In the annexed Drawings this device is shewn in several modifications. Figs. 1
and 2 shew vertical and transverse sections of the device applied to the quadrangular
leg of a table. On said leg A is fixed, by screws or otherwise, the metal sleeve a
carrying in its lower part the pin or bolt b, capable of being drawn out. The bolt b
is squared off and furnished with teeth or serrations on one side and moreover is
provided with a guide pin or lug d with which it slides in a suitable recess or
groove in the sleeve a. The guide pin or lug d serves to prevent the pin turning
in the sleeve
The pin or bolt b engages with the plug or head e (also furnished with teeth or
serrations) of a horizontally moveable pin f, which, by a coiled or other suitable
spring g, is always pressed against the pin b. If pin fis pulled out of the sleeve a
the pin 6 falls downward by reason of its own weight: when, however, the said
pin is released, it will move back again in consequence of the action of the spring 7,
again engaging with b. The pin b can thus be fixed in any position by the pin f.

page_text: If the legs, say, of a table are furnished with this device and the table stands
on an uneven floor, it is only necessary slightly to pull out the pin f on the leg
which does not quite reach the floor: pin b then falls outwardly from the sleeve a
until it touches the floor; and pin fis then again released.
It is obvious that the pin b may be angular as well as round and fitted at bottom
with a castor, as shewn in Fig. 3, or with a broad bearing plate. A ball castor
may likewise, be fitted to the lower end of b.
Figs. 4 and 5 shew the device applied to a round leg. This is a modification
inasmuch as pin fis pressed with its head e against the pin b by a flat spring instead
of by a coiled spring.
Figs. 6 and 7 shew pin b provided at its lower end with a hat-shaped or trunk
enlargement. The pin b is rivetted into the hat or trunk i which slides in the
sleeve a.
Fig. 8 shews in perspective a table, one leg whereof, x, is lengthened by means
of the said device.
Having now described the nature of the said Invention as communicated to me
by the said Gustav Ladisch and particularly ascertained the manner of performing
the same, I would have it understood that I claim as novel and original and desire
to secure by Letters Patent-
The application to the legs of tables, chairs, or other like furniture of a device
for lengthening the legs of such furniture, consisting in a pin b guided in a sleeve a
and extensible in a downward direction and provided with teeth or serrations on
one side in combination-with-the-spring-pressed pin f, furnished with the toothed
or serrated head e fixing the pin b at any height, which latter may be fitted-at-its-
lower end with a broad bearing surface or with a castor or other suitable base as
and for the purposes described.
POPPLEWELL, COLTON & Co.,
Agents for the Applicant.