Strewth the spelling of English is weird!

[facthunter]

Yeah, the Scottish, My ancestors. Need Sub titles to understand them. Nev

[Marty_d]

3 hours ago, red750 said:

I contest number 1.

"Cunth" rhymes perfectly with "month".

It's what you call a couple of thugs that have just knocked your teeth out.

[red750]

https://www.facebook.com/reel/2842812786114906

[willedoo]

One thing I've noticed a lot lately while watching YouTube videos is Americans pronouncing solder as 'sodder'. Same for a noun as verb, and it seems to be wide spread across states and not restricted to certain areas. They sodder a leakey pipe so they can water their erb garden.

[facthunter]

I don't lie awake at Night thinking about how they Pronounce words. No one solders much these days . It's got LEAD in it..PLUMBUM. That's how "Plumber" is derived. Nev

[old man emu]

21 minutes ago, facthunter said:

No one solders much these days . It's got LEAD in it..PLUMBUM.

Yes. You can still get solder with tin concentrations between 5% and 70% by weight.

 

The European Union Waste Electrical and Electronic Equipment Directive and Restriction of Hazardous Substances Directive were adopted in early 2003 and came into effect on July 1, 2006, restricting the inclusion of lead in most consumer electronics sold in the EU, and having a broad effect on consumer electronics sold worldwide. In the US, manufacturers may receive tax benefits by reducing the use of lead-based solder.

 

Etymology

The word solder comes from the Middle English word soudur, via Old French solduree and soulder, from the Latin solidare, meaning "to make solid".

[pmccarthy]

Sodder and calling split pins Cotter pins both annoy me.

[old man emu]

A cotter is a pin or wedge with a flat bearing surface passing through a hole to fix parts tightly together. A split pin in the US, is a metal fastener with two tines that are bent during installation. Split pins are frequently used to secure other fasteners, e.g. clevis pins, or to secure a castellated nut.

 

       

 

A split pin is a metal fastener with two tines that are bent during installation. Split pins are frequently used to secure other fasteners, e.g. clevis pins, or to secure a castellated nut.

 

[Litespeed]

 

Cotter pins  are used to hold the carnk to the crank shaft on bicycles.

 

Generally old ones, newer are different.

[old man emu]

1 hour ago, Litespeed said:

 

Cotter pins  are used to hold the carnk to the crank shaft on bicycles. Generally old ones, newer are different.

I couldn't think of any other place where coitter pins were used. Typical applications are in fixing a crank to its crankshaft, as in a bicycle, and a piston rod to a crosshead, as in a steam engine. In mechanical engineering, a crosshead is a mechanical joint used as part of the slider-crank linkages of long stroke reciprocating engines (either internal combustion or steam). When was the last time you saw a long stroke engine or asteam engine in common use?

[facthunter]

Modern Container ships use Super long stroke ,supercharged motors that operate on something close to straight Crude oil 76 Rpm's. Nev

[old man emu]

52 minutes ago, facthunter said:

Modern Container ships use Super long stroke ,supercharged motors

They are scarce on the ground in my neck of the woods.

[pmccarthy]

In the USA they call split pins cotter pins. Everywhere.

[willedoo]

9 minutes ago, pmccarthy said:

In the USA they call split pins cotter pins. Everywhere.

It was the same in Queensland when I was growing up. Even as a young adult everyone was still calling them cotter pins, but you rarely hear it these days. Split pins has been the common term for a long time now

[willedoo]

 Google AI says they're one and the same, generally called split pins in Australia. They use AIMS Industrial Supplies as a reference. The AI also says the Brits call them split pins or split cotter pins, the Americans call them cotter pins, then it goes on to describe a true cotter pin.

https://aimsindustrial.com.au/blogs/product-guides/split-pin-cotter-pin-guide

Edited 17 hours ago by willedoo

[old man emu]

The thing Australians call a split pin was patented in the USA in 1925. https://patents.google.com/patent/US7413391B2/en This patent seems to be for an upgrade of pre-existing similar items. An earlier patent was granted in in the USA in 1902, and that item is of cruder design. https://patents.google.com/patent/US691730A/en

 

 1902 version  1925 version

 

There have been a number of later patents issued for amendments to this design, but these have been minor tweeks.

 

The wedge-shaped piece or bolt that is/was used to fasten a pedal crank on a bicycle is known from the 1640s The word is of uncertain origin, perhaps a shortened form of cotterel, a dialectal word for "cotter pin or bolt, bracket to hang a pot over a fire" (1560s), itself of uncertain origin. Cotter-pin is attested by 1849.

 

It would seem that the Australian term for the item provides a better description of how the pin is used and effectively differentiates it from the bolt-like thing. 

 

[facthunter]

I've never seen one with flats on the side as depicted there.  They are  used generally in conjunction with Castellated nuts.  A cotter pin is a cylindrical bar with an offset thread on one end and a  sloping flat formed along the side opposite the thread offset. . It acts as a wedge. There are also such things as Gib Head Keys, used in Locomotive work and also tapered pins of hardened steel to fix something in a precise position on a shaft, Nev

[old man emu]

1 hour ago, facthunter said:

I've never seen one with flats on the side as depicted there.

I see your point. I don't have any on hand to check, but I can see that the edges parallel to the split in the 1925 design are flat. I suppose later improvements made those edges round. Probably made it easier to manufacture the pin.