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Member postings for Cyril Bonnett

Here is a list of all the postings Cyril Bonnett has made in our forums. Click on a thread name to jump to the thread.

Thread: Removing surface rust on machined surfaces
23/07/2012 23:22:27

**LINK**

This works

Thread: measurement
16/07/2012 22:46:04

By sliding the 60T backgear assembly
80 in the appropriate direction, set the
cone pulley 2 with approximately 0.005"
end float. Lock the backgear 80 with the
t4" BSF socket set screw 8.

Found this, which I think answers my question!

15/07/2012 23:05:00

Hi

Can you tell me the clearance that I should have a position A and B of my super 7 (1961)

Cyril

Thread: machining a gun barrel
03/07/2012 21:15:48

**LINK**

Try this

Thread: Boiler and Metal Theft.
23/05/2012 13:49:11

Don't think they'll have much chance of retrieving these items,earlier this year £15000 worth of copper cable was taken in Paisley, last year thieves stole a 1 1/2 ton cast iron bell scrap value £5000 from Johnstone/Paisley, gone without a trace and nobody saw it being taken. Scrap dealers must know this stuff is nicked. So its about time they came down really hard on dealers that accept stolen scrap, a few heavy jail sentences and confiscation of property against proceeds of crime this would soon change the dealer’s attitudes to this sort of crime.

.

Edited By Cyril Bonnett on 23/05/2012 13:51:45

Thread: mercury or quicksilver........Barometer?
14/04/2012 20:07:11

Mercury is very toxic, implement in conditions such as ALS. As boys we played with mercury and it does, if dropped, separates into miniscal droplets, it is also absorbed through the skin and as a vapour it is just as bad, the reason that many dentists are against removing amalgam fillings.

Nowadays we have a much better understanding of what effects such things as mercury, asbestos and lead as well as vapours from soldering, welding and burning have on the human body. Most are cumulative and the effects can become suddenly debilitating even leading to death.

So proper precautions, eye protection, masks and gloves with plenty of ventilation should be the norm nowadays. Believe me when I say that someone dying from ALS in a very short period of time from being very fit is not very pleasant.

Thread: Is it time to give up?
28/01/2012 23:16:11
 
Couple more that might help
Thread: Grinding on the side of the wheel
12/01/2012 22:58:17
I have a small book ' Handbook on Tool Room Grinding' printed by Norton Abrasives of America. 1938
Its quite a comphrenensive hand book on grinding, from it
 
"Side Grinding"
 
Grinding on the flat sides of straight wheels is often hazardous and should not be allowed on such operations when the sides of the wheel are appreciably worn thereby or when any considerable or sudden pressure is brought to bear against the sides.
 
Still trading
 
Cyril
Thread: Blackgates power hacksaw drawings
25/12/2011 22:43:40
I guess the problem with long web address hasn't been resolved, I've changed it so that it doesn't mess up the web page.
Cyril

Edited By Cyril Bonnett on 25/12/2011 22:47:54

25/12/2011 22:40:29
Plenty of homemade hacksaws in Popular mechanics some dating back to 1909

Google books

Edited By Cyril Bonnett on 25/12/2011 22:46:28

Edited By David Clark 1 on 26/12/2011 00:08:21

Thread: Small engines and boilers 1899
10/12/2011 21:41:52
Something to while away the dark nights.
 
you can read online or download (free) in variety of formats.
 
Cyrill
Thread: Silver solder or copper rod?
18/11/2011 23:20:36
http://www.cupalloys.co.uk/general-c15.html
Thread: russian engine plan!
12/11/2011 00:49:45
Some may like this, need an online translator.
 
 
Thread: Preventing Rusting in Garage
21/10/2011 23:26:30
If covering with any form of material, cotton sheets, old blankets remember that after a couple of days they will themselves become damp and need airing, I have seen what covering a lathe with blankets can do if left for any length time.
I cover my machines with bubble wrap but only in large sheets drapped loosely over them, some ventilation is necessary and I try and leave the door or window open as often as possiblethrough the day.
Making sure you have a good ventilation system helps.
Thread: Centre lathe
12/10/2011 22:17:19
 
Nice animations for the beginner with short explanations.
Thread: Travelling Steady Fixture for Thinning Narrow Diameter Bar
28/09/2011 21:46:45
1996 ME vol 177 no.4025 pages 344-345 has the article by Don Broadly 'steady on myford' including plan. Chronos sell a kit.
 
Cyril
Thread: Rust and how to remove it.
06/09/2011 11:48:43
http://www.stovebolt.com/techtips/rust/electrolytic_derusting.htm
01/09/2011 01:17:08
just cheap vinegar, cleans rust and scale off after a couple of days soaking, light rub over with steel scouring pad.
This works as well
 
Once worked in a boatyard engineering shop, did a lot of work on naval boats and ferrys, they bought in a company to blast the hulls, water jets and grit, the hulls were cleaned down to bare metal and then quickly coated as the metal would begin to rust straight away, the water jets would cut through a 4 inch staging plank like butter.
Be a bit drastic in the shed though
Thread: Char schneider 1:10 scale French Tank
06/08/2011 22:46:48
 
Thread: My Big mistake with spraying
21/07/2011 01:00:09
worked for a guy once who sprayed cellulose laquers in his workshop with a wood burning stove going, no mask or ventilation. He is still with us, well into his seventies! Never seemed to affect him.
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