Home | Links | Contact |

Printed from www.nzmeccano.com

Top Home Bottom

Parts 89-90a: Curved strips

In the table below, the notes show the number of each part required to make a circle.  The circle diameter referred to is the distance between holes (i.e. the centres of the strips).

 
89Curved strip, 5½'' 1919-6612N°912 make 20'' diameter
89aCurved strip, stepped, 3'' 1928-006N°104 make 3½'' diameter
89bCurved strip, stepped, 4'' 1931-08N°98 make 9'' diameter
90Curved strip, 2½'' 1916-161612N°68 make 5'' diameter
90aCurved strip, stepped, 2½'' 1924-6108N°04 make 3'' diameter
The five types of curved strips, all supplied in a 1950s outfit 10
Loading picture Curvedstrips

The parts

Frank Hornby seems to have been fixated on cranes as a particular favourite model, and perhaps as a result of this there were no curved parts in the Meccano system for a very long time.  The first one, part 90, was introduced during WW1.  Of course, these strips would have required a specific press tool rather than being produced from pre-cut steel strip as the longer perforated strips were, so they were admittedly more complex to make.

Slowly, other strips were produced (starting with the 5½'' curved strip in 1919).  In 1924 the new stepped curved strip part 90a was produced, with a much smaller radius and stepped ends to allow the parts to be bolted together into a flat circle.  Subsequent longer and larger radius parts had to wait until the late 20's, and were only supplied in the largest outfits so are relatively unusual.

The curved stepped strip part 90a was supplied in almost all post-war outfits and is thus by far the most common curve – one of the most common of all Meccano parts.

Some of the strips have carefully designed properties.  The 5½'' strip part number 89 has a radius of 10'', and can be used to reinforce a ring of part 54 (flanged sector plates).

PartSpacing between holesDistance between end holesNumber of holes in complete circleRadius of complete circleAngle between each hole
890.5''124
125
128
9.868''
9.932''
10.186''
2.90°
2.88°
2.81°
89aVariesEarly: <2.5''
Later: 2.5''
16Early: 1.750''
Later: 1.768''
Varies
89b0.505''3.444''564.5''6.43°
900.491''1.914''322.5''11.25°
90a0.5''2''161.414''Varies
Early (above) and later part 89a with different slots
All images on this site are copyright. This particular image belongs to the
webmasters, and you may copy it for your personal use, or for a non-
commercial website - if you credit the source. All other rights reserved.
Loading picture Curvedstripslots

Chronological variations

Most of these parts have not changed since their introduction, with the exception of part 89a.  The early parts had short slotted holes (top example in the picture), but it was soon noticed that there was no half-inch spacing available in the part.  The slotted holes were extended early in the dark green period (lower example in the picture), such that they extend to half an inch from the end holes.

This would appear to be a very early change, as the part was only introduced in the Meccano Magazine of May 1928 and yet the photograph shows the longer slotted holes.  The announcement also shows the four-flanged plate part 52, which we know was available several months before this, perhaps dating part 89a to the very end of 1927.

Variations and oddities

Mystery part 89a stamped Meccano Made In England
This image does not belong to the webmasters and is copyright.
Please do not download or copy it for any purpose. It has been
kindly provided for use on this site by the image owner,
Ed Barclay
Loading picture Curvedstripmystery But it gets stranger than this.  Ed has sent us a very odd part 89a (of which he has six), pictured right, which is appears to be a dark green part that has been rather badly overpainted a lighter green.  However, it is an early-style part 89a with short slotted holes, stamped Meccano Made in England, a post-war stamping.  The close up at the bottom of the picture (with enhanced contrast) shows this.  How on earth do we explain it?

If this is indeed a part from 1928, as indicated by the short slots, then it predates any other known example of this stamping (in the pulley blocks) by at least four years.

A set of iridescent curved strips
This image does not belong to the webmasters and is copyright.
Please do not download or copy it for any purpose. It has been
kindly provided for use on this site by the image owner,
William Irwin
Loading picture curvedstripsiridescent To the left is shown a set of iridescent curved strips, courtesy of William Irwin.  These have been much discussed, and it is thought that they are most likely model room parts or experimental parts with this finish.  The known outfit 10's from 1979 do not have these iridescent curved strips.

Dealer spare parts boxes

Early 50s (medium green) and late 50s (light green) curved strips
This image does not belong to the webmasters and is copyright.
Please do not download or copy it for any purpose. It has been
kindly provided for use on this site by the image owner,
William Irwin
Loading picture Curvedstripspareparts1
Late 50s light green curved strips
This image does not belong to the webmasters and is copyright.
Please do not download or copy it for any purpose. It has been
kindly provided for use on this site by the image owner,
William Irwin
Loading picture Curvedstripspareparts2 Here are a range of curved strips in dealer spare parts boxes dating from the 1950's.

Thanks to William for this collection.

Late 50s light green curved strips
This image does not belong to the webmasters and is copyright.
Please do not download or copy it for any purpose. It has been
kindly provided for use on this site by the image owner,
William Irwin
Loading picture Curvedstripspareparts3 The light yellow label shows a pre-1958 part in medium green, the light green label shows a later part in light green.  Note that the parts 89b are in a hugely oversized box.

Pre-war (believed gold) curved strips
This image does not belong to the webmasters and is copyright.
Please do not download or copy it for any purpose. It has been
kindly provided for use on this site by the image owner,
Clive Weston
Loading picture 89agoldspareparts And here are a set of pre-war parts with the red-over-yellow label.  These 3'' curved stepped strips are believed to be gold painted.

Individual part numbers

Part numbers for the parts on this page are as follows:    Unique part numbers
For identification, each variation has been given a suffix to the main Meccano part number. These suffixes consist of a two-character code for the colour, and if there are many variations, a further number and sometimes letter code to identify each variation. See the bottom of the 'Parts' page for further details.

You don't need to worry what the codes are, just click on any one for a photograph.

The button above turns on and off the display of DMS numbers (where they are known). The DMS (Development of the Meccano System, Hauton and Hindemarsh) published in 1972 and added to in 75 and 82, suggested part numbers for every variation of every Meccano part. These numbers aren't perfect, but they are recognised and also referenced in the EMP (Encyclopedia of Meccano Parts, Don Blakeborough).

More about bosses More about stampings More about paint colours

Neils Gottlob's line drawings (where available) can be viewed by clicking the part number at the top of the table.

Descriptionfrom89
89a
89b
90
90a
Nickel plated ²16.ni.ni.ni.ni.ni
Pea green26.pg  .pg.pg
Dark green (short slotted holes)28 .dg1   
Dark green27.dg.dg.dg.dg.dg
Medium green33.mg1.mg1.mg1.mg1.mg1
Gold34.go.go.go.go.go
Matt olive green (Mechanised Army) †39-41    .ma
Medium green (post-war stamping)45.mg.mg.mg.mg.mg
Light green58.lg.lg.lg.lg.lg
Silver painted64.si.si.si.si.si
Zinc plated66.zn.zn.zn.zn.zn
Yellow (Highway/Crane kits) †73 .ye   
Dark blue78.db.db.db.db.db
Dark yellow (Highway/Crane kits) †¹78 .dy .dy 
ALLALLALLALLALL
Notes:
¹   Part 89a is supplied in the dark yellow Crane and Highway Construction Sets of 1978/79, but part 90 shouldn't exist in dark yellow. This is most likely a model room part or display model special.
²   Parts 89a and 89b didn't appear in nickel plate, being introduced in 1928 and 1931 respectively. However, outfits and parts could be special-ordered in a nickel finish up to 1941, and for this reason there are a tiny number of nickel plated ones. Presumably there also exist long-hole versions of part 89a, have you seen one?


Please send us pictures of missing parts! Hints and tips for pictures
Take a picture of the part in very good light, preferably on a plain yellow background, without a flash but with a tripod.
Ideally, trim the picture to about 150 pixels per inch of the Meccano part (unless the part is particularly big or small), save it as a reasonably good quality jpg file with a filename of exactly the part number, for example 19b.ni1.jpg, and email it to us by clicking on 'Contact us' at the top of the page. Thanks!

Further information

Total number of messages on this page: 7.  This is page 1 of 2.   Next

Adzeneth      (at 3:42am, Fri 22nd Apr, 16)

The text states that the part 90a was introduced in 1924, yet the table seems to indicate that a nickel part was available from 1916 onwards.
In contrast, the August 1926 Meccano Magazine p511 states that the part 90a will be introduced shortly.

Jeremy Jordan      (at 2:26pm, Mon 12th Jan, 15)

I have #89, some with MECCANO stamped only once instead of twice per your photo and some w/o any stamping at all; all appear Nickel Plated.

Antoni Gual      (at 2:00pm, Mon 20th May, 13)

The part 89b is now produced by Meccano France without the steps. I have some of them zinc finish and stamped Meccano©(N)

Nils      (at 4:36pm, Sat 3rd Jul, 10)

Binns road models have been photographed with yellow 48a and 90a so yes these parts do exist but they haven't been updated onto the site yet I guess

Mike Allen, Larkfield, UK      (at 11:04am, Wed 17th Mar, 10)

I have 16 number 4" unstepped curved strips painted mid green and about half are stamped "MECCANO" but across the strip rather than up and down. No place of origen. I have picyure if of interest.

Jason      (at 3:24pm, Mon 12th Oct, 09)

Were the parts 90a (and perhaps others) yellow for a while in 1964?

I have never seen any but I have seen that colour in 1960s advertising.

At the same time, part 48a was shown in yellow. I have seen yellow items, although they are perha**omewhat more likely to be from a later multikit.

Any ideas about the 1964 colour? Did it exist in these parts or was it a case of advertising artistic licence??


Your name:
Your message:
Security check: (Please type in the text to prove you're a person!)
 

On this page...

Recent stuff going on: