AT162250B - ladder - Google Patents

ladder

Info

Publication number
AT162250B
AT162250B AT162250DA AT162250B AT 162250 B AT162250 B AT 162250B AT 162250D A AT162250D A AT 162250DA AT 162250 B AT162250 B AT 162250B
Authority
AT
Austria
Prior art keywords
ladder
another
desc
spar
spars
Prior art date
Application number
Other languages
German (de)
Inventor
Ferdinand Wittmann
Original Assignee
Ferdinand Wittmann
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Ferdinand Wittmann filed Critical Ferdinand Wittmann
Application granted granted Critical
Publication of AT162250B publication Critical patent/AT162250B/en

Links

Landscapes

  • Securing Of Glass Panes Or The Like (AREA)

Description

  

   <Desc/Clms Page number 1> 
 



  Leiter 
 EMI1.1 
 und Verminderung des Gewichtes zwischen den beiden   Holmteilen   eine dünne Metallschiene anzuordnen. 



   Demgegenüber sollen aber bei der erfindung- gemässen Leiter die Holme deshalb aus zwei fest miteinander verbundenen Holzbalken be- stehen, um etwaige Fehlerstellen in den beiden
Holzbalken gegeneinander zu versetzen. 



   Durch die besondere Lage der Struktur- zeichnungen der beiden Holzlatten zueinander soll ferner ein etwaiges Verziehen der Holme vermieden und eine grössere Tragfähigkeit der
Holme erreicht werden. 



   In der Zeichnung ist die Leiter beispielsweise dargestellt. Als Leiterholme dienen je zwei an ihren Breitseiten 1 miteinander verbundene, z. B. verleimte Latten 2 und 3. Die Holme liegen mit ihren Breitseiten quer zu den Leitersprossen 4. 



  Die Strukturzeichnungen je zweier Lattenquerschnitte sind in bezug auf die Stosskante annährend symmetrisch. Der besseren Verdeutlichung wegen ist im Holm 2 bei 5 und im Holm 3 bei 6 je eine Fehlerstelle eingezeichnet, um zu zeigen, wie durch die erfindungsgemässe Anordnung derartige Stellen gegeneinander versetzt werden können, so dass nirgends der ganze Querschnitt eines   Holmes   fehlerhaft ist. 

**WARNUNG** Ende DESC Feld kannt Anfang CLMS uberlappen**.



   <Desc / Clms Page number 1>
 



  ladder
 EMI1.1
 and to reduce the weight between the two spar parts to arrange a thin metal rail.



   In contrast, however, in the ladder according to the invention, the stiles should therefore consist of two wooden beams that are firmly connected to one another to avoid any faults in the two
To offset wooden beams against each other.



   Due to the special position of the structural drawings of the two wooden slats to one another, any warping of the spars should also be avoided and the load-bearing capacity of the
Holme can be reached.



   In the drawing, the ladder is shown for example. As ladder stiles each serve two interconnected at their broad sides 1, z. B. glued battens 2 and 3. The broadsides of the stiles lie at right angles to the ladder rungs 4.



  The structural drawings of two slat cross-sections are approximately symmetrical in relation to the abutting edge. For the sake of clarity, a fault point is shown in the spar 2 at 5 and in the spar 3 at 6 to show how the arrangement according to the invention can offset such points from one another so that the entire cross-section of a spar is nowhere faulty.

** WARNING ** End of DESC field may overlap beginning of CLMS **.

 

Claims (1)

PATENTANSPRUCH : Leiter, deren Holme je aus mindestens zwei gleichgeformten Holzlatten mit im wesentlichen gleichlaufender Faserung bestehen, die an den quer zu den Sprossen liegenden Breitseiten bleibend fest miteinander vereinigt, z. B. verleimt sind, dadurch gekennzeichnet, dass die Strukturzeichnung je zweier Lattenquerschnitte in bezug auf die Stosskante wenigstens annähernd symmetrisch erscheint. **WARNUNG** Ende CLMS Feld Kannt Anfang DESC uberlappen**. PATENT CLAIM: Ladder, the spars of which each consist of at least two identically shaped wooden slats with essentially the same grain, which are permanently united with one another on the broad sides lying across the rungs, e.g. B. are glued, characterized in that the structure drawing of two slat cross-sections appears at least approximately symmetrical with respect to the abutting edge. ** WARNING ** End of CLMS field may overlap beginning of DESC **.
AT162250D 1945-09-11 1945-09-11 ladder AT162250B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AT162250T 1945-09-11

Publications (1)

Publication Number Publication Date
AT162250B true AT162250B (en) 1949-02-10

Family

ID=3651365

Family Applications (1)

Application Number Title Priority Date Filing Date
AT162250D AT162250B (en) 1945-09-11 1945-09-11 ladder

Country Status (1)

Country Link
AT (1) AT162250B (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2741936A1 (en) * 1977-09-17 1979-03-29 Eberhard Layher Composite non-conducting wood and metal ladder - has glued layered wooden stringers with beaded tubular metal rungs through holes
US5058339A (en) * 1990-10-11 1991-10-22 Krstovic Alexander P Curved stairway and method

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2741936A1 (en) * 1977-09-17 1979-03-29 Eberhard Layher Composite non-conducting wood and metal ladder - has glued layered wooden stringers with beaded tubular metal rungs through holes
US5058339A (en) * 1990-10-11 1991-10-22 Krstovic Alexander P Curved stairway and method

Similar Documents

Publication Publication Date Title
AT162250B (en) ladder
DE1300577B (en) Turbine blade wheel
AT370226B (en) COMPOSITE CONSTRUCTION FOR CONTAINERS
DE943880C (en) Wind turbine blades
CH357588A (en) Angle connection between two metal rails, each with a guide
DE818108C (en) Reinforcement bars for rolled sections under buckling load
DE643715C (en) Metal ladder with stiles made of tubes
DE6915832U (en) FRAME PANEL
DE653036C (en) Double ladder made of metal, especially aluminum, with pairs of stiles that can be moved along the length
AT206169B (en) Length adjustable formwork beams made of wood
AT211733B (en) Detachable attachment for load bearing plates
DE616700C (en) Single-spar aircraft wing
DE668059C (en) Lock for floor and cellar hatches
DE480791C (en) Single-spar wing design for aircraft
DE688863C (en) Airplane wing
AT97961B (en) Junction connection in wood.
AT130056B (en) Reinforcement bracket for ladder scaffolding.
DE646614C (en) Airplane wing with a single spar
DE727702C (en) construction manager
DE1554308C3 (en) Piece of furniture, rack or the like. With an adjustment device
DE744665C (en) Wing for aircraft with I-shaped spars, between which fuel tanks are used
DE696511C (en) Ladder, consisting of hollow metal bars and wooden rungs
AT60409B (en) Collapsible laundry basket.
DE639598C (en) Airplane wing
DE439870C (en) Collapsible transport box u. like. container