Side note: Not for that particular film, but to celebrate the centenary of the Dutch Railways in 1939. Drawings survived of "Leeuw" (Lion), a copy of Arend, which they used to make Arend.

Thankyou

The only depiction I can think of is the print of a locomotive and train passing the Old Leeds Parish Church. That print is inaccurated in several respects including giving the locomotive two chimneys! George Walker shows it the head of a train of coal waggons, presumably travelling from right to left. Another contemporary drawing of it in the Monthly Magazine also shows it at the end of a train, which it is presumably pulling. It's entirely possible the engine was marshalled in the middle so as to draw and propel. What we do know is that they worked intermittently - they had no coal tender and only a very small water tank - at first the steam pressure was let off to refill the boiler!

We had flatter track with less severe curves so a long, fixed wheelbase could cope.

The classic American 4-4-0 was (as I understand it) designed for uneven track, with compensated springing. That is, the axleboxes on the two main axles were linked by an 'equalising beam' which effectively gave a single point of support on that side of the loco. So together with the bogie pivot at the front, that was three-point suspension, which avoided twisting the frames. I don't think any domestic British engine ever adopted that. (I once examined a New Zealand 'J' class 4-8-2 in its shed and was fascinated to find that everything was compensated, from the front bogie to the rear trailing truck, with equalising levers between the ends of the springs).

At the time they were known as "Patent Engines" or "Patent Locomotives" by Robert Stephenson & Co (and those who built them under licence). Quite what others referred to them as I'm not sure. Robert Stephenson & Co also referred to "Planet" and "Samson" types in their order books, too.

@@AnthonyDawsonHistory interesting, often wonder how much we have added looking back rather than continued on in tradition. Interesting you note the convertion of exisiting planet types into patentee types, rather reminds me of the GWR new build that has the theoretical ability to be converted from 4-6-0 into 4-4-2 formation. If the people with say in such things ever get a bit bored of Planet being Planet they could work in such a conversion when she needs an overhaul and give us a taste of a patentee for a year or two and go backwards quite easily. (Flanged drivers of course)

@@HamStrains I dont think it will be possible with Planet

The patentee type simply refers to a six wheel locomotive with "blind" i.e. flangeless centre driving wheels. The enrolled patent drawings show a 2-2-2 and an 0-4-2.

@@AnthonyDawsonHistory I see. So a 2-4-0 or 0-6-0 with flangeless centre drivers might also be a 'patentee'? But any 2-2-2 or 0-4-2 with flanges all round would, strictly, not be a Patentee. Being very careful with nomenclature, I notice you say the 2-2-2 (illustrated by Jenny Lind and North Star) would be a mainstay for years. I had assumed you included those as 'Patentee' type but I think that was a wrong assumption. (I see Wikipedia calls the 2-2-2 wheel arrangement a 'Jenny Lind' or more generically, a 'single'.) So it would be fairer to say the Patentee made 2-2-2's popular, but most 2-2-2's were not Patentees?

@@cr10001 "Patentee" was the first modern six wheeled locomotive. Six wheelers had existed before, but Patentee was the first modern locomotive. The design was derived, quite naturally from the "Planet" (2-2-0) type. The Patentee type became the single most popular wheel arrangement for passenger locomotives in the late 1830s. Whilst Stephenson's original patent called for the centre /driving wheel to be blind, in actual service the original "Pantentee" and her successors did have flanged driving wheels following an accident where "Patentee" broke her leading axle, and with only the trailing wheels at the rear having flanges she came seriously to grief. She was then fitted with new flanged driving wheels on the grounds of safety. And if you read the 1838 description of Stephenson's patent locomotive the driving wheels are flanged. Problems encountered with the use of a crank axle on the Grand Junction Railway led to Joseph Locke and William Buddicom to come up with what is now termed the "Crewe" type. This had outside cylinders and the driving wheels had a straigth axle supported on inside frames. The leading and trailing wheels were supported on outside frames. David Joy's famous "Jenny Lind" has the same arrangement of framing. Basically "Jenny Lind" is a form of "Crewe Type". The defining feature of the Patentee type is: six wheels; outside frame; inside cylinders; crank axle. "North Star" is a Patentee just on an enlarged scale. The "Crewe" type also had six wheels but has outside cylinders, a straight axle and a mix of framing for the driving and carrying wheels. Finally, I'd not trust Wikipedia as far as I could throw it.

@@AnthonyDawsonHistory I think we have here one of those cases where developments led common usage to deviate from precise terminology. That is, the acquisition of flanges by 'Patentee' et al led to 2-2-2's being called 'patentees'. I assume that developments in trackwork led to the curvature at points etc being reduced over time, which would have made it easier for flanged six-wheelers to negotiate. The classic example of this is terminological creep is Mallets. Americans (usually) chide me for calling a Big Boy a 'Mallet' or even a 'simple Mallet' (since as we know, Mallet's patents included compounding). In response to my 'what do you call it then' they just say 'articulated', which might pass in the US but is useless if trying to compare the features of one with, say, a Garratt which is also articulated.

Patentee herself was built with the same slip eccentric valve gear as Planet. Stephensons went over to Gab gear about 1836. Link valve gear didn't come in until the 1840s with William Howe and William Williams developing what became known as 'Stephenson Link' in 1841. A simple design really, derived from Buddicom-type gab valve gear.

The Six-Wheeler was the Patentee Type, and could appear in differant forms, the main two Classes being the Patentee 2-2-2 for passenger trains, and the "Large Samson" 0-4-2 for working goods trains. The Patentee 2-2-2 evolved from the "Planet Class" 2-2-0 whilst the Large Samson, as the name suggest, evolved from the 0-4-0 "Samson". Locomotive building firms like Charles Tayleur & Co referred to them as classes A B C or D depending on the wheel configuration. I'm planning a video on "Samson" and also "Atals" the big 0-6-0 built to move heavy coal trains :-)

@@AnthonyDawsonHistory thanks!! I appreciate the clear up, I guess I didn't quite understand the video enough lol, but I've always had an appreciation for early steam locomotives so I'm in love with your channel

@@uniquely.mediocre1865 Awwww thanks! It could just be my way of explaining things and over-simplifying a bit too much. But I'm glad you're enjoying them! Spread the good word!

It was probably Cheshire at the time, I don't think "Merseyside" as a county existed in the 1830s.

@@MajorMagna Thank you but Newton - Le Willows was in Lancashire not Cheshire I do know this because I've looked at old maps from that time because it was in Lancashire, until it went into Merseyside in 1974, The information I've given you is true I've lived in Lancashire for most of my life since 1972, because it was very close to St Helens & North Of Warrington, which was also in Lancashire until 1974,when it went into Cheshire including Burtonwood & Winwick because I used to barrow old maps from that period, from The local Library which showed that Newton - Le - Willows, was in Lancashire, not Cheshire, plus I went on a Heritage bus tour from starting from St Helens Bus Museum, you can check it out, because what I've told you is true.

@@MajorMagna Lancashire was around in 1830, was formed at the same time as Cheshire three hundred years before, Merseyside was formed in April 1974, but Newton - Le - Willows has never been a part of Cheshire, I've looked at maps dating back then, Newton - Le - Willows as never been a part of Cheshire, the Lancashire boundary started from South of Latchford, where The Manchester Ship Canal now runs along, to Manchester. Northwards to West Moreland & Cumbria, Westwards to Liverpool & Eastwards to Manchester & Yorkshire, [now West Yorkshire].