COMPLETING A STUART TRIPLE EXPANSION ENGINE - PART #1

[@peterellis6556]

I first encountered these screws in the UK 30 years ago, when they came in a kit for a pocket hole jig. My Stuart Triple came to me from Tom Walshaw (Tubal Cain), who was a friend. He made a number of them to photograph the construction of them and mine had just been started. It came with his construction notes and jigs and has been sitting, waiting for me to finish it. I look forward to watching your videos and doing so. Thank you.

[@keithappleton]

The real Tubal Cain ........ not the modern KZbin version. What a great provenance to go with your engine - I am almost jealous }:-)))

[@peterellis6556]

@@keithappleton He is going to be a hard act to follow. One reason why I have been putting it off ! I've also been trying to get the SIMEC articles.

[@peterellis6556]

BTW, I also noticed a reference to Cherry. Have you spoken to her recently ? She, Ivan (both Ivans !) and Tom used to meet up every Christmas in my flat when I lived in London, together with Dennis Monk, Ted Joliffe, Geoff and Jill Sheppard. Happy days !

[@keithappleton]

The Royalty of Model Engineering }:-)))

[@davidadaur5163]

Keith: The well made box is held together by Robertson screws. He, Robertson, was a Canadian and invented these screws in 1906. In the USA electricians use this type of screw on lots of jobs and in Canada they are used for almost everything. The reason, just my thought, they did not catch on in a big way is that Robertson thought if he licensed these to other manfactiers he wold lose control of the quality. Therefore he made the screws in Canada and they did not spread to the rest of the world. As you probably noticed they are still a superior screw. david adair

[@perrydebell1352]

Good evening Keith, You have expressed disquiet in wearing gloves, but I've just finished watching Edd China's workshop diaries, episode 8, in which he explains that after years of exposure to mineral oils, significant quantities of hydrocarbons were detected in his blood stream, because he did not wear gloves. He spends a few minutes discussing gloves & he provided a link to Ansell UK & their PPE. We want you to continue to post your videos for many years to come & I hope you will take this comment as a gentle reminder that we are no longer as immortal as we once believed we were.

[@keithappleton]

Unlike a motor mechanic, I do not work 8 hour days in the Workshop and I am not always in contact with oil and grease on my hands. Plus I have a very good professional hand cleanser & barrier cream. Gloves in the workshop can be dangerous things.

[@madsighntist14]

Keith, FIRST time viewer, came to you from Joe Pie's "Little Lathe" project, and your comments therein. Number 2 Square Drive Screws, Properly Entitled Robertson "Square Drive" is a Canadian Patent, from circa Henry Ford First auto's. Mr. Robertson was a contemporary of Mr. Phillips of the "Phillips Head Screw" fame. A note of Trivia, combining All Three of those persons: Henry Ford ~wanted~ to BUY Mr. Robertson's PATENT, as he "Knew" good engineering When he Saw It. Mr. Robertson Wanted to hold the Patent, and just give Patent Right to use his tooling. Mr. Ford then went to Mr. Phillip's and offered HIM that same request. Mr. Phillip's SOLD his patented Phillips Head Screw to Henry Ford! And as our Great Radio Announcer Paul Harvey used to say (RIP, Paul) "And NOW you know, the Rest of the story". In my 40+ years as a wood worker, I Always bought #2 Square Drive, WHEN Possible, I have also used #1 Square Drive AND some massive "Timber Screws" in #3 square drive (0.250" shank, 8" long, using 3/8ths drive ratchets). philip, from the Great Pacific NorthWET, Oregon Division!

[@Bodi2000]

Most common kind of wood screw in Canada. Philips and (ugh) slot screws do exist but the widest size selection at a store will be square drive Robertson or Scrulox. Quite a story of the inventor and how they never got popular in the USA.

[@calebwagler853]

That's interesting that you folks across the pond don't have square-headed screws! Over here in Canada, we call those Robertson heads. I almost exclusively use those, as they prove to be the best. Great video, I love watching your videos every evening!

[@captain34ca]

they were invented in Canada

[@GaryGrumble]

Those square drive screws are fairly common in the US. They just look right on an upscale build (or a well-built box). I am looking forward to this build.

[@deanwilliams2353]

The square drive screw, also known as the Robertson screw, was popularized by Peter Lymburner Robertson, a Canadian inventor. the square drive was originally invented by someone else, but they were never popular as the manufacturing process did not allow them to be made to a standard that allowed them to be used one handed. They are very popular in Canada, and they are my go to screw precisely because you can stick the screw on the driver and it will not fall off.

[@excavateboy]

They are called Robertson screws. Invented and originally manufactured in milton Ontario Canada and almost exclusively used in Canada

[@jayminor9757]

“Robertson” screws! A Canadian invention, not universally available outside Canada but, by far, the most common wood screw type used here.

[@TheCrazzyToobinator]

No one seems to have noted that the type shown here is the most common #2/#8 Robertson type construction screw and they are the best you can get because unlike the philips heads that tend to strip before the job is done I have commonly snapped the head off a Robertson long before stripping it. There is also the smaller #1/#6 (and there is even one size smaller than that) then there is the larger #3/#10. Don't get me wrong, philips head screws have a place but the shape can't handle near the turning force that a Robertson head/screw driver can.

[@steveskouson9620]

I was using some Robertson screws to assemble something at the shop, where I work. Screwing in some screws, with a cordless driver. When the screw was in, I let go of the driver. The interface between the bit and the screw, was strong enough to hold up the whole impact driver. You're NOT doing that with a Phillips bit. (I've done that bit, quite a few times.) Keith, not sure about the other side of the pond, but Texton will send a replacement, if you send them a picture of the broken tool. Also, not sure if bits are covered. Send an email, with a picture of the broken part, they will ask for your physical address, and mail you a new tool. I've been carrying a 2 blade knife, (regular blade, and a craft blade holder.) had it for MANY years, but I think it has been deemed unsafe, since both blades can open at the same time. steve

[@Gin-toki]

@@TheCrazzyToobinator Here in Denmark and I believe in most of Europe too, Torx is the most commonly used head for construction screws. They can handle quite a large amount of torque. It is possible to strip the heads but that is typically due to wrong handling or to bad quality bits/screws. Philips heads are rarely seen, typically it will be of the pozi drive type, which are a tad better than philips. For machine screws it is typically pozi drive or hex drive that is used here.

[@paulshouse524]

Nice walnut scraps in there!

[@paulfisher1160]

Hi Keith, Looking forward to this series. An engine im planning on completing myself. Thanks for all your hard work and keep it up. Regards Paul

[@darrellbedford4857]

USA square drive are based on a Canadian Robertson Screw. We use them quite a bit in Canada. Another great video.

[@charleshart6992]

A great introduction - looking forward to following this series!

[@ianrenshaw6653]

They are called Robertson screws originally patented in Canada in 1906.

[@davidgrandy4681]

Robertson screws. Canadian origin. They're great.

[@MrBigdragon2009]

Those are Robertson screws developed in Canada.

[@kevinhillgrenjr2248]

Very common deck screw here in the US

[@Tater1337]

looking forward to the video on adjusting timing on these

[@PaulSteMarie]

The square drive screws are called Robertson's. They're a Canadian thing. When they were first invented, Henry Ford wanted to buy the patent, but Robertson refused to sell, and Ford went with Phillips instead.

[@madddawg1369]

Square heads are Robinson screw, the inventor and original patent holder's name from Canada. They are very common on RV's in the States.

[@brynjones4579]

The father and his friend will be well chuffed, as they watch you from above, finishing this model for them.

[@Cristiantripodi]

Great box!!

[@senorjp21]

Those are "Robertson" screws from Canada. They stay on the end of a screwdriver

[@michaelmccready9668]

The screw is a Robertson, a Canadian design which, unfortunately, has never received wide support. It is, as you mention, far superior to either the slot or the Phillips head screw, the latter of which is the standard in the USA while the Robertson is the standard here in Canada.

[@kevgermany]

Nice project. Guessing the builder will have used US threads. Might lead to a bit of frustration. Good luck, looking forward to this.

[@glenarthurphillips]

Those ‘square’ drive screws are known as ‘Robertson’ drive in Canada and are probably even more common here than the USA.

[@johnclements3650]

The square drive screw is a Canadian design.

[@tosselton291]

there's a lot of Robertson comments they come in I believe 3 or 4 sizes.

[@madsighntist14]

there are 4 sizes in Robertson Screws, "0", "1", "2", & "3" .... I have NEVER SEEN a Number 0 Sq drive screw, but my guess is it would be near a # 4 shank OR less! I base That on my #1 sq dr. Trim Screws for attaching Exterior Trim to Windows, etc. I would not see a use for inside houses, as the idea is to prevent Wood Movement from humidity to "back trim NAILS out of their holes". philip

[@ilfarmboy]

very nice video

[@duane20]

Square drive screws are called Robertson in Canada. Interesting history in Wikipedia.

[@bullettube9863]

I just watched a film/video about Lend Lease, and the amazing amount of goods shipped over to England during WW2, so you see Americans really know how to ship delicate machinery to England! BTW Those screws were invented by a Canadian and are very good as they are unlikely to strip out when tightening. Torque screws are good but if they get covered with dirt they are difficult to clean and get a screwdriver into their heads. I'm wondering do you have "butterfly" screw heads in England? They require a special driver and were intended to make it hard for thieves to remove parts from recreation vehicles. Of course thieves simply buy the driver before they steal stuff, so they really are useless.

[@MrPhil604]

Thats a Robertson screw - Canadian inventor. Very common in Canada - less so everywhere else. The best screw in my opinion - but I may be biased.

[@DaiElsan]

Love it.

[@hamiltonshangar]

Where do you order from in Indiana sir?

[@keithappleton]

Please take the time to watch this short video series: kzbin.info/aero/PLDV_TkPc48RHCpDW_tvi3tBZ0Vp04Ig0p

[@darkhorsegarage9623]

Robertson square drive screw invented in Canada 1906-1907.

[@geoffreykail9129]

Square drive was invented/created in Canada around the time of WWII. it was called a Robertson.

[@vonstroop9866]

That's a Robertson screw, Canadian patent.

[@johnkowalchuk1028]

Originally developed in Nova Scotia, Canada by a man named Robertson, square drive as it is known in the US. Failed Copyight. :-(

[@hamishspencer]

I believe the square heads are sometimes called 'Robertson' as they were invented by a Canadian of that name.

[@kimse_ape50]

it is canadian screws they use them

[@alangknowles]

Is it 90% complete?

[@alangknowles]

Is that why it will be a very long series to do the last 10%?

[@keithappleton]

It looks well on the way - but it isn't . . . . . . all will be revealed as the series progresses . . . . .

[@gerrywittenberg4348]

The square drive screws are a Canadian invention by a fellow by name of Robertson and are referred to in Canada as “Robertson Screws”. Our American neighbours latched on to the concept, altered the design slightly, and called them “SquareDrive Screws. The Cdn Robertson screws have a slightly tapered recess for the driver, I’m told that it was originally designed that way to prevent ‘cam out’. The US Sqare drive screws are not tapered as much, if at all. I, and a lot of other woodworkers in Canada will trade any %@#$&*Phillips screws for Robertson’s immediately on discovery. The US square drive screws are available from hardware dealers such as McFeeley’s and the Robertson’s are available from Lee Valley and most other hardware dealers. It is almost impossible to strip a screw head or to experience cam out provided that the proper sized driver is used on its matching screw and the drivers will out live the owner if used properly. All this from one of your regular viewers and fellow steam freaks living in the Columbia Valley on the west coast of Canada. Cheers!

[@kennoldfield5890]

The screw is a Robertson drive, invented in Canada, rejected by Ford for their cars.

[@Coalsmoke]

Ford rejected them because P. L. Robertson wouldn't sell his company to Ford. Ford had to own or control everything supplied to his factory.

[@philipmackin1025]

Robertson #2. Go to wikipedia, look for P._L._Robertson

[@leifvejby8023]

Robertson screws! They are older and way better than phillips screws!