AT94044B - Pressing device with change of the transmission ratio. - Google Patents
Pressing device with change of the transmission ratio.Info
- Publication number
- AT94044B AT94044B AT94044DA AT94044B AT 94044 B AT94044 B AT 94044B AT 94044D A AT94044D A AT 94044DA AT 94044 B AT94044 B AT 94044B
- Authority
- AT
- Austria
- Prior art keywords
- pressing device
- change
- transmission ratio
- support
- cataract
- Prior art date
Links
- 230000005540 biological transmission Effects 0.000 title claims description 4
- 208000002177 Cataract Diseases 0.000 claims description 7
- 239000012530 fluid Substances 0.000 claims description 2
- 239000007788 liquid Substances 0.000 claims 1
Landscapes
- Arrangement Or Mounting Of Control Devices For Change-Speed Gearing (AREA)
- Control Of Transmission Device (AREA)
- Friction Gearing (AREA)
Description
<Desc/Clms Page number 1>
Pressvorrichtung mit Änderung des Übersetzungsverhältnisses.
EMI1.1
<Desc/Clms Page number 2>
gewicht wirkt, schliesst mit seinem langen Arm infolge des von diesem zurückgelegten grossen Weges die Bremse sehr rasch. Liegen die Bremsbacken mit einem gewissen Druck an, dann wirkt dieser als Rückdruck auf das federbelastete Umlaufventil 57 und öffnet es. Der Unterstützungspunkt 55 gibt nach. Nun wird der Hebel 2 an einem anderen Punkt, dem Punkt 8, unterstützt durch einen zweiten Katarakt, bestehend aus einem mit Flüssigkeit gefüllten Zylinder mit dem Kolben 5, dessen Kolbenstange an dem Punkt 8 des Hebels 2 angreift.
In dem Kolben 5 ist nun ein Rückschlagventil 31 eingebaut, das sich sofort schliesst, wenn die Kolbenstange vom Hebel 2 Druck erhält, was geschieht, wenn der Punkt 55 nachgibt. Der Kolben 5 bildet jetzt die Unterstützung für den Hebel 2 ; der Punkt 8 wird Drehpunkt für den ungleicharmigen Hebel 2. Der Arm, an dem das Fallgewicht angreift, ist jetzt lang, jener, an dem die Bremsbacken angreifen, kurz. Die Bremsbacken werden mit grosser Kraft angedrückt.
Der Hebel 59-löst das Rückschlagventil 31 im Kolben 5, wenn er beim Wiederaufhängen des Fall- gewiehts 3 an den Anschlag 5 anstösst.
Der zur Abstützung des zuerst wirksamen Drehpunktes benutzte Katarakt kann nach Abstützung des zweiten Drehpunktes als Bremskatarakt für die Antriebskraft der Bremsvorrichtung benutzt werden.
<Desc / Clms Page number 1>
Pressing device with change of the transmission ratio.
EMI1.1
<Desc / Clms Page number 2>
weight acts, closes the brake very quickly with his long arm as a result of the long distance covered by this arm. If the brake shoes are applied with a certain pressure, then this acts as back pressure on the spring-loaded circulation valve 57 and opens it. The support point 55 gives way. The lever 2 is now supported at another point, the point 8, by a second cataract, consisting of a cylinder filled with fluid with the piston 5, the piston rod of which engages the point 8 of the lever 2.
A check valve 31 is now built into the piston 5, which closes immediately when the piston rod receives pressure from the lever 2, which happens when the point 55 yields. The piston 5 now forms the support for the lever 2; point 8 becomes the fulcrum for the unequal-armed lever 2. The arm on which the falling weight engages is now long, the arm on which the brake shoes engage is short. The brake shoes are pressed on with great force.
The lever 59 releases the check valve 31 in the piston 5 when it hits the stop 5 when the weight 3 is hung up again.
The cataract used to support the first effective pivot point can, after supporting the second pivot point, be used as a braking cataract for the driving force of the braking device.
Claims (1)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE94044X | 1920-05-08 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| AT94044B true AT94044B (en) | 1923-08-25 |
Family
ID=5644909
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| AT94044D AT94044B (en) | 1920-05-08 | 1921-05-03 | Pressing device with change of the transmission ratio. |
Country Status (1)
| Country | Link |
|---|---|
| AT (1) | AT94044B (en) |
-
1921
- 1921-05-03 AT AT94044D patent/AT94044B/en active
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