High-quality black-and-white photographs of large old machines and tools

[jimfols]

I am pretty sure the table rotates and the operator is administered a supply of Dramamine suppositories.

[Toolmaker51]

A Mesta employee machining a section of an engine crankshaft.

Fullsize image: https://diqn32j8nouaz.cloudfront.net...t_fullsize.jpg

Some equipment needed to complete assembly of product.


A one track mind; just a day or so back, going on about infrastructure.

[Ralphxyz]

Does the table the guy is standing on revolve? I cannot imagine the engine that crankshaft goes in.

Ralph

[marksbug]

thats one hell of a motor cycle crank....

[Toolmaker51]

A Mesta employee machining a section of an engine crankshaft.

Does the table the guy is standing on revolve? I cannot imagine the engine that crankshaft goes in.

I am pretty sure the table rotates and the operator is administered a supply of Dramamine suppositories.

thats one hell of a motor cycle crank....

What a coincidence; you're all correct! Though one might not be "quite right".
I scaled him about 5 units tall, chuck at 14 same units. So, if he's 5'5'', about a 12' chuck. Max RPM is maybe 18 or so. Takes really good tool grinding to produce finishes so far out of proportion between diameter - available speeds & feeds. Diameter not done yet, but cheek of crank throw looks good.
Reasoning says its cast or forging, but not turned from a big slug. It would depend whether this is a repair or repeated job.

Just noticed a 'mistake' in photographers framing of shot. If he'd set up a bit farther to right, there'd been daylight between turned diameter and tool-holder under the man's hand.

[marksbug]

I was thinken it was 14' turn table but it's probably metric... Iv'e never seen a press together cast crank but I haven't seen it all ..well not yet.

[Ralphxyz]

Thanks Frank, wish I had room in my shop for one.

Ralph

[Toolmaker51]

Thanks Frank, wish I had room in my shop for one.

Ralph

Well, could your shop be put ON one? Hooking up power is the challenge...
I ran 8' and 12's building different molds one place, big pump housings in another. The mold shop had straight rams and single toolholders; everything is form tools. Running pump castings, turret in that puppy. Practically had to jump the clutch pedal from the table.
Supervisor teased me some, but knew I liked that machine.
"How you gettin' along with the King?" Aaa just fine Roy, I carry 90 dollars in my pocket...He looked puzzled You know, rolls of dimes!

[Frank S]

Well, could your shop be put ON one? Hooking up power is the challenge...
I ran 8' and 12's building different molds one place, big pump housings in another. The mold shop had straight rams and single toolholders; everything is form tools. Running pump castings, turret in that puppy. Practically had to jump the clutch pedal from the table.
Supervisor teased me some, but knew I liked that machine.
"How you gettin' along with the King?" Aaa just fine Roy, I carry 90 dollars in my pocket...He looked puzzled You know, rolls of dimes!

$90.00 in dimes is only around 4.5 lbs the same is true for quarters and half dollars unless you were talking about pre 1965 coins then you could add about a half pound in round numbers
But nickels would be 19.8 lbs
$90.0 in pennies would rip your pockets weighing in at 49.6 lbs
Interestingly enough using a roll of coins in your fist to increase your punch a roll of dollar coins add the most weight a roll of half dollars are too large in diameter for most fists maybe not mine but most. A roll of dollar coins the Susan B size that is weighs .893 lbs. but if it breaks you are out 50 bucks.
Quarters will yield and additional half pound of weight to add to your kinetic force
Nickels would be my coinage of choice still large enough in diameter to reasonably fill most fists and will weigh in at .441 lbs. not a lot less than quarters but only 2 bucks lost when you have to toss them

[marksbug]

HMM....OK SEND ME 2 OF THEM...i CAN ADD SEATS AND TAKE THE KIDDIES FOR RIDES.