My new favourite machine - vintage surface grinder working

[fizzy]

At last I have finished fettling the old Brown and Sharpe I acquired.
I have never used a surface grinder before. I love it! Working very well - not bad for 90 years old!
I could watch it all day.

 

[knighty]

do you need it, or is it more you just want one?

I keep being tempted by one, I need mincer blades/plates sharpening at work via surface grinder

but... it's only £6 each to have them done by pros.

 

[Brad93]

do you need it, or is it more you just want one?

I keep being tempted by one, I need mincer blades/plates sharpening at work via surface grinder

but... it's only £6 each to have them done by pros.

Depends how flat your blades need to be, parallel too.

Any old grinder will grind a flat surface, whether it grinds a surface parallel to ways is another matter.

Hence when you flip the part, you end up with a trapezoid cross section.

 

[clift_d]

You should set up a decent camera and mic and capture an unedited hour of that to upload.

 

[arther dailey]

At last I have finished fettling the old Brown and Sharpe I acquired.
I have never used a surface grinder before. I love it! Working very well - not bad for 90 years old!
I could watch it all day.

yup brilliant tool,used one at the training centre as a lad , soo usefull

 

[tom2207]

Its like theres a ghost driving it ,,, what a thing of great beauty .

 

[6ply]

Bit lazy aren't you @fizzy

My one is manual.

 

[fizzy]

Its like theres a ghost driving it ,,, what a thing of great beauty .

I will have to video the back of it. There is a very long belt going over multiple pulleys. There is a pivoting counterweight which keeps tension constant no matter how high or low the spindle is. Don't want to get too close to it whilst running though

 

[Erie Fred]

Its like theres a ghost driving it ,,, what a thing of great beauty .

More than one ghost:

 

[fizzy]

More than one ghost:

2nd one was the best - awesome.
A friend of mine works at a local company who make parts for the car industry. The latest most modern cars and the machines making the parts are over 100 years old and not a computer in sight

 

[tom2207]

this will boggle your mind ,,,

 

[fizzy]

this will boggle your mind ,,,

Look up the Rose engine.
Queen Victoria had such a lathe.
The work they could do was incredible.

 

[OJCar]

- not bad for 90 years old!

Very mesmeric !

I never realise you were quite so old.

 

[knighty]

Depends how flat your blades need to be, parallel too.
Any old grinder will grind a flat surface, whether it grinds a surface parallel to ways is another matter.
Hence when you flip the part, you end up with a trapezoid cross section.

there's 3 plates (the disks with hols in you normally see when you look at the front of a mincer) with 2 blades between them

they need to be pretty perfect, it's 75hp geared down to a few hundred rpm so it's happy to destroy them if they're not quite right

 

[tom2207]

Look up the Rose engine.
Queen Victoria had such a lathe.
The work they could do was incredible.

View attachment 393142

yep thats the name they use for them ,,, reminds me of the big brass differential engine they used to use for tide tables

 

[tom2207]

some amazing minds , basically a mechanical computer.

 

[Brad93]

there's 3 plates (the disks with hols in you normally see when you look at the front of a mincer) with 2 blades between them

they need to be pretty perfect, it's 75hp geared down to a few hundred rpm so it's happy to destroy them if they're not quite right

£6 is cheap then

 

[knighty]

£6 is cheap then

yeah... I figure they must have a pretty neat system that lets them work though them quick/easy

 

[Erie Fred]

some amazing minds , basically a mechanical computer.

Who is cranking it ? HAL ?
and what was it set up to calculate for the video ?

 

[tom2207]

Who is cranking it ? HAL ?
and what was it set up to calculate for the video ?

no idea ,,, theres plenty of videos of it working , even a video on how it actually works , an animation , im sure theres 3d printed small one by now , like those black wind up pocket calculators ,, or that Greek pocket computer they found laying on the ocean floor