Information for Hiroshi

General view of machine 2007

General view of machine at Point of Ayre


Drive Information

At the Point of Ayre in 1991 the chariot wheels were replaced by a sealed bearing,I remember the chariot wheels and its guide rollers but I cannot remember how the carriage guide rollers were attached,so the red part and question "What is this part" I can only say,where the guide rollers were fixed.

Struts and Stays

Struts 2007 Struts and Stays 2007

I think where the service table is smaller than the carriage only struts are required,where the service table is larger struts and stays are used.

Rings

Rings 2007

Where stays are used the lower ring is bolted to stays to keep in rigid position,the strut ring is bolted to struts to keep in rigid position and leave access to service table
The prism frames are bolted to strut ring
The strut ring appears to be cut in one piece from sheet metal
The only stays ring I can recall is at Maughold head,which is quite substantial and includes guide rollers.

Lower lens panel 2007 Minimum distances 2007

Lower lens from front

Lens Joint 2007
Lens frame joints from rear

Where bottom frame and side and center frames join could have been soldered and screwed or just screwed ... difficult to tell?
Where it says ignore,are brackets used to hold red screens when the character was alternate red/white,now used to hold blanking screens when character was changed to 4 flashes every 20 seconds and only some of bulls eye lens used.

Top Guide Bearing2007 ____________ Guide Diagram 2007

What part of revolving frame Friction Rollers are ? The guide rollers for lens frame/chimney (To counteract the effect of accidental vibration)
What part of revolving frame Braces are ? 1" diameter rod iron to stiffen the frame holding central guide

Picture above shows modern replacement for chimney pipe,fitted during automation program

Frame brace 2007
Frame Brace at Douglas Head Lighthouse 2007


Draw Bolt  2007 Draw Bolt  2007 Door Bolt position  2007
__________ Draw Bolt _____________________ Draw Bolt positions
Double doors,each side of machine case


Jack  2007 ________ Jack Diagram 2007

This was the type of lifting jack used when chariot wheels were fitted
Used to raise lens and service roller wheels


Footstep(Bearing)  2007
Worm Drive Spindle
Footstep (Bearing)


All photographs Copyright Fred Fox.