DE229385C

DE229385C -

Info

Publication number: DE229385C
Application number: DENDAT229385D
Authority: DE

Description

KAISERLICHESIMPERIAL

PATENTAMT.PATENT OFFICE.

PATENTSCHRIFTPATENT LETTERING

- JVi 229385 KLASSE 21/. GRUPPE- JVi 229385 CLASS 21 /. GROUP

Explosionssichere Armatur für elektrische Glühlampen.Explosion-proof fitting for electric light bulbs.

Patentiert im Deutschen Reiche vom 7. August 1909 ab.Patented in the German Empire on August 7, 1909.

Für Bergwerke und Räume, in denen explosive Gase bzw. Dämpfe auftreten, war es bis jetzt noch nicht möglich, eine absolut schlagwettersichere Glühlichtarmatur herzustellen, welche die an sie gestellten Anforderungen als explosionssichere Armatur rechtfertigte. For mines and rooms in which explosive gases or vapors occur, it was up to now not possible to manufacture an absolutely fire-weather-proof incandescent light fitting, which justified the requirements placed on them as an explosion-proof valve.

Die bedienenden Monteure mußten bei Auswechselung der Glühbirnen und SicherungenThe service technicians had to change the lightbulbs and fuses

to mit der größten Vorsicht zu Werke gehen, damit nicht durch Unvorsichtigkeit ein öffnungsfunke entstand, der leicht zur Entzündung der vorhandenen Gase Anlaß geben konnte.to work with the greatest care, so as not to cause an opening spark through carelessness which could easily cause the gases present to ignite.

Diese Gefahr ist durch die neue Erfindung, wie nachstehend beschrieben, vollständig beseitigt. Es wird dies dadurch erreicht, daß der die Armatur Bedienende gezwungen ist, die Lampe erst auszuschalten, bevor ein Öffnen der Armatur möglich ist.This risk is completely eliminated by the new invention, as described below. This is achieved in that the person operating the valve is forced to switch off the lamp first before opening it the valve is possible.

Fig. I, 2 und 3 zeigen einzelne Teile der Armatur, welche zum Zusammenstellen fertig sind. Fig. 4 zeigt sie im Schnitt an ihrem Platze in der Armatur. Nach Anschluß der Verteilungsklemme 1 legt man die Isolierplatte 2, welche den zweipoligen Schalter 3 auf der Innenseite und die beiden Sicherungsstöpsel 4 nebst Fassung 5 auf der Außenseite trägt, mit Dichtungsring 6 auf den Ansatz 7 des Gehäuses 8 und verbindet die Isolierplatte 2 mit dem Gehäuse 8 durch Schrauben 9, wodurch im Gehäuse 8 ein gasdichter Räum R₁ entsteht, der nicht mehr geöffnet zu werden braucht.Figs. I, 2 and 3 show individual parts of the fitting which are ready to be assembled. Fig. 4 shows it in section in its place in the fitting. After connecting the distribution terminal 1, the insulating plate 2, which carries the two-pole switch 3 on the inside and the two fuse plugs 4 and socket 5 on the outside, with sealing ring 6 on the shoulder 7 of the housing 8 and connects the insulating plate 2 to the housing 8 by screws 9, which creates a gas-tight space R ₁ in the housing 8, which no longer needs to be opened.

Beim Einsetzen der Isolierplatte 2 legen sich die Kontakte 10 des in seiner Wirkungsweise bekannten zweipoligen Schalters 3 auf die federnden Kontaktstifte 13 und leiten den Strom vermittels der Schaltfedern 40 zu den Sicherungsstöpseln 4 und von da zur Fassung 5.When inserting the insulating plate 2, the contacts 10 of the set in its mode of operation known two-pole switch 3 on the resilient contact pins 13 and direct the Current by means of the switching springs 40 to the fuse plugs 4 and from there to the socket 5.

Die Achse des zweipoligen Schalters 3 ist zweiteilig. · An dem oberen Teil der Unterachse befindet sich der Mitnehmerstift 12, der wiederum (bei montierter Armatur) in eine schlitzartige Aussparung 41 der Oberachse (genannt Schlüssel 26) eingreift. Der Schlüssel 26 ist drehbar in dem Verschlußring 15 gelagert und ist am freien Ende mit einer segmentartig ausgebildeten Kapsel 24 vernietet; je nachdem man die segmentartige Kapsel nach links bzw. nach rechts dreht, wird auch der zweipolige Schalter 3 mitgenommen, da er ja durch die Achse und den Schlüssel 26 gekuppelt ist. Durch die eigenartige Ausbildung des Verschlusses, wie er in Fig. 3, r 5, 6 und 7 dargestellt ist, wird der die Armatur Bedienende gezwungen, vor dem öffnen erst die Glühbirnen auszuschalten, und umgekehrt die Armatur erst vollkommen zu schließen, bevor die Einschaltung bewirkt werden kann. Dieser Verschlußmechanismus besteht aus einer segmentartig ausgebildeten Kapsel 24, in deren Boden sich ein Schlitz 33 befindet. Die Kapsel 24 ist über der Verschlußnase 17 drehbar gelagert und durch Vernietung mit dem Schlüssel 26 zu einem Ganzen verbunden.The axis of the two-pole switch 3 is in two parts. · On the upper part of the lower axis there is the driving pin 12, which in turn (with the valve mounted) into a slot-like recess 41 of the upper axis (called key 26) engages. The key 26 is rotatably mounted in the locking ring 15 and is segment-like at the free end formed capsule 24 riveted; depending on whether you turn the segment-like capsule to the left or to the right, the two-pole switch 3 taken along, since it is coupled by the axle and the key 26 is. Due to the peculiar design of the closure, as shown in Fig. 3, r 5, 6 and 7, the operator of the valve is forced to open it first turn off the lightbulbs, and vice versa, turn off the faucet completely close before switching on can be effected. This locking mechanism consists of a segment-like capsule 24, in the bottom of which there is a slot 33 is located. The capsule 24 is rotatably mounted on the locking nose 17 and through Riveting connected to the key 26 to form a whole.

Soll nun die Armatur, nachdem sie zusammengestellt ist, geschlossen und die Lampe eingeschaltet werden, so sind vorher folgende Handhabungen notwendig:Should now the fitting after it has been put together is closed and the lamp is switched on, the following operations are necessary beforehand:

Es wird der Scharnierbolzen 28, der zweiIt becomes the hinge pin 28, the two

Claims

Nuts, namely a large slotted nut 29 and a small slotted nut 30 above it, moved in the direction of the arrow, as shown in FIG. 7. As a result, the coulter bolt 28 passes through the slot of the nose 31 of the ring 15, and the large slotted nut 29 must first be tightened by means of a suitable wrench until it has reached below the capsule cover 24. The valve is now closed, but not yet switched on. This is achieved by turning the capsule 24 to the right, which is designed so that the large slotted nut 29 can only pass through the circular recess 32 when it is switched off; then the capsule 24 can be turned by 900, the slot 33 allowing the hinge pin 28 to pass through, but not the small slot. mother 30, which is. still, located above the capsule lid. Only when the hinge pin 28 reaches the end position, d. H. After the switch 3 is switched on, the small slotted nut 30 can also be tightened using a suitable wrench, in which case it is then placed in the recess 34 of the capsule 24 and thus as a safeguard against unauthorized switching off. works. If the fitting is to be checked and opened for reinsertion of the fuse plug 4 or the light bulb 21 or for other faults, the small slotted nut 30 can probably be turned back to the locking disk 36 of the hinge bolt 28, but it is impossible to loosen the large slotted nut 29, because it is hidden within the capsule 24; it cannot be reached earlier with the appropriate key than until the capsule 24 is in the position shown in FIG. However, while the movement required for this is being carried out, the two-pole switch 3 is switched off again at the same time and the lamp is thus de-energized. Now the large slotted nut 29, which is accessible again, can be turned and the fitting opened. The metal-made locking ring 15, which has a sealing ring 16 on its inside and a locking nose 17 on its outside, lies on the insulating plate .2. The sealing ring 16 creates a second gas-tight space R2, into which the socket 5 and the two fuse plugs 4 protrude, between the insulating plate 2 and the protective glass 14. The locking ring 15 carries the protective glass 14, and it is this by a metal ring 18 (Fig. 8), the. Bayonet-like recesses and two inclined planes 20, which are placed on the one hand under the two cams 35 of the ring 15, on the other hand against the protective glass 14, held. The bayonet-like metal ring 18 enables quick replacement and convenient cleaning of the protective glass. The insertion of the locking ring 15 is effected quickly and safely by putting it with the protective glass 14 over the light bulb 21 and then pushing it under the cam 22 of the housing 8 so that the cam 22 is supported between the two lugs 23 of the ring 15 will. Fa tent claims: '

1. Explosion-proof fitting for electrical, see incandescent lamps, characterized 'that by one with the valve closure inevitably connected device in the sense of a two-pole switch when the lamp is switched off, whereupon the Valve can be opened.

2. Explosion-proof fitting according to claim i, characterized in that a segment-like closure capsule (24) which is connected to the switching axis to Is rotated 90 °, whereby the switching mechanism (3) is switched off and then the Valve lock can be opened.

3. Explosion-proof fitting according to claim i, characterized in that on the locking bolt (28) there are two nuts, one of which (29) for Opening or closing, while the other (30) acts as a safeguard for the closure capsule (24) is used to prevent the light bulb from being switched on or off without authorization.

1 sheet of drawings.