Gas lighting rods

Abstract

A gas lighting rod comprises a gas release valve ( 41 ) and a piezo-electric igniting system ( 14 ) both operated by a spring-loaded operating member ( 10 ), and a spring-loaded safety member ( 25 ) which has to be operated to release the operating member. The operating member ( 10 ) is aligned transversely and the safety member ( 25 ) comprises a pivoted lever having a lock/release arm ( 26 ) extending generally along the axis of the operating member ( 10 ) and interacting therewith and a control arm ( 27 ) engaged on the other side of the pivot ( 28, 55 ) and from the opposite side of the lighting rod from the operating member ( 10 ). The lock-release arm ( 26 ) is substantially enclosed within the operating member, and its end is sloped such that its engagement with the operating member ( 10 ) tends to urge it into the locked position if the user attempts to operate the operating member without first fully operating the safety member.

1 . A gas lighting rod comprising a gas release valve and a piezoelectric igniting system, both operated by a spring-loaded operating member, and a spring-loaded safety member which has to be operated to release the operating member, wherein the operating member is arranged to move in a primarily transverse direction to the axis of the lighting rod but angled to include a subordinate longitudinal movement towards the gas release valve when operated.  
     
     
         2 . A gas lighting rod according to  claim 1  wherein the casing of the lighting rod includes a substantially straight portion through one end of which the operating member is accessible.  
     
     
         3 . A gas lighting rod according to  claim 2  wherein said substantially straight portion is substantially at right angles to the direction of movement of the operating member.  
     
     
         4 . A gas lighting rod comprising a gas release valve and a piezoelectric igniting system, both operated by a spring-loaded operating member, and a spring-loaded safety member which has to be operated to release the operating member, wherein the piezoelectric igniting system includes a piezoelectric member which is carried on the operating member and engages against a fixed stop when the operating member is operated.  
     
     
         5 . A gas lighting system according to  claim 4  wherein the piezoelectric member is carried in a bore in the operating member.  
     
     
         6 . A gas lighting system according to  claim 4  wherein the operating member includes a bore for receiving a portion of the safety member.  
     
     
         7 . A gas lighting system according to  claim 4  wherein the piezoelectric member is carried in a first bore in the operating member and the operating member includes a second bore, substantially parallel to the first bore, for receiving a portion of the safety member.  
     
     
         8 . A gas lighting rod according to  claim 4  wherein the safety member engages against the piezoelectric member.  
     
     
         9 . A gas lighting rod according to  claim 4  including a lever one end of which controls the gas release valve and the other end of which engages with the piezoelectric member.