Thanks Janice. I don’t think I’ve seen upper case font used on route signs, well at least none spring to mind. Not something I take much notice of, more concerned about getting in the right lane in the right direction. Viv.
Convention seems to be to use a leading capital followed by lower-case for letters for place names. I say 'seems' because the legislation appears to allow lots of options! [The Traffic Signs Regulations and General Directions 2016 ]Thanks Janice. I don’t think I’ve seen upper case font used on route signs, well at least none spring to mind. Not something I take much notice of, more concerned about getting in the right lane in the right direction. Viv.
The ancient one looks better than the modern! Most likey does not work as well but still looks better!Contrasting lamps: from gas fitted to electric. Viv.View attachment 157164
Mark, that is a classic view of the museum I remember so well. Super photo.Edit, post copied and edited from the Science Museum thread.
At the old Science Museum Newhall Street
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Only 1 in 3 electric lamps burned all night. The others switched off at 11pm and re-lit at 5 am. In the summer they didn't re light at all. You could tell which lamps were all night burners as they had a red dot painted on the column, just beneath the ladder arms.Am I right in believing, in the era of timers between lamp-lighters and photocells, the street lights sometimes switched off before it was light in the morning? I'm pretty sure I can remember being left in the dark on my way home from town some mornings. Or is it my ageing memory flickering and dimming, not the lights?
They didn't need to be reset for summer / winter! When checking or resetting the clock the time was set by setting the dial against one of 2 pointers. 1 pointer was W and the other S ( winter or summer ) the clock also incorporated a calender as the days passed the calender would advance and move a tiny cam which mechanically moved the switch on / off toggle. The " solar clock " was a masterpiece of miniature engineering.Clockwork timers v Photocells. the old clock work timer had to be reset for British summer time & again in the winter, not always a council priority !
Even now some photocells are set to low and do not come on until total darkness falls,this can be very dangerous for the public on dull rainy days.
We don't actually gain or lose an 'hour of sun' when 'the clocks change' so street lighting clock only needs to cope with solar changes throughout the year, 'clock time' doesn't matter to the street lamp.They didn't need to be reset for summer / winter! ..... The " solar clock " was a masterpiece of miniature engineering.
I suspect the photoresistor will have become a photodiode, the relay some sort of solid-state switch and the lamp an array of LEDs!How do the streetlights turn on automatically at night?
The most commonly used component in streetlights is called a cadmium sulphide photoresistor, or a CdS cell for short.
This change in current can then be used to control a relay.
I think so! Lights I have mounted for tennis courts and parking lots had the sensors on top or over the illumination source. A sensor below could potentially shadow the demand for power!So mounting the photosensor under the light for easy servicing might be a bad design decision ?
Andrew.
And Pete, most of those clock types worked pretty well. Todays construction has them replaced with photo sensitive switches with no moving mechanical parts that sense light or lack thereof. Some have built in sensors to indicate light or illumination failure and report it.A lot of street lights had a timer clock in the base of the pole-column most of the covers was broken and held on with tape etc later a cable tie was used
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1960 street light clock
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1930 street like clock View attachment 168621
The photos of Pillar Boxes reminded me of the I Spy books we used to have as kids and looking for a street items to tick off. Also I Spy on a Train which was good fun on our holiday journey from Snow Hill down to holiday in Devon by steam train.Edward Eighth pillar boxes are not all that common due to his very short reign (20th January to 11th December 1936). After doing a Google search it seems as if only two of these pillar boxes have survived in Birmingham. One is in Digbeth (first photo) and the other is in Clay Lane, Yardley (photo 2, apologies for the slight lean).
Well, I remember the Marker, Joint, No. 3’s and the Post, Marker No. 2 as a kid. They were quite a common sight, but not seen one for years now.ttps://www.britishtelephones.com/markersjoint.htm?fbclid=IwAR2HMwn5BB0WMORR2CkxXFTUnvzbMV_QNCV1eGAhdHE8wK34n_-T1ZxiQ6k
A bit more info in the same theme. Facebook "Birmingham in Photographs"GPO - JOINT MARKERS AND MARKING POSTS
GPO - JOINT MARKERS AND MARKING POSTSwww.britishtelephones.com
Is it a trig point?What are these ? Seen them in many places. This one is next to the lych gate of St Mary’s Church, Acocks Green. Been there some time as, I think, can be seen in the old photo. Viv.
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