Happynak

Select System Type Select Country System Text Search
(1207 systems found)

Happynak Construction Sets

Happynak is a simple construction system consisting of tubes pushed into connectors. It was made in the UK from 1914 to at least 1922.

Manufacturer / Distributor

Paton, Calvert & Co. Ltd., Binns Road, Old Swan, Liverpool

Info from the Metal Constructional Systems Database for HAPPYNAK (Ref:HAP)

Maker

System Type
Mainly Rods/Tubes

Country
United Kingdom

Dates
1914 to known in 1922 (see comment *¹)

Material
Steel

Thread
----

Boss Type
no boss

Boss Thread
---

Diametrical Pitch of Gears
--

No. of Parts in System
26

Hole Pitch (Spacing) (mm)
6.35 (see comment *²)

Diameter of holes in Strips(mm)
2.0 (see comment *³)

Diameter of the Bore in Bosses(mm)

Diameter of Axle Rods(mm)
2.0 (approximately) (probably)

Types of Nuts and Bolts
Nuts: --
Bolts: --

Material/Finish of Nuts and Bolts
-- --

Size of the Nuts across Flats (mm)
---

Bolt diameter (mm)
---

Comments
Tubes push into Joints with split sockets, & are used as axles. *¹ Not listed in 1929. *²*³ only in Perforated Tubes; similar size holes in some Joints.

The MCS document for this system is shown below. It can also be downloaded to your computer if desired here

NOTE : If the MCS document does not appear in the window below, then refresh the page.

The report can be zoomed into, made full screen or downloaded as a pdf document by using the controls provided

Pages from the 'Other Systems Newsletter' which contain information on this system are shown below. They can also be downloaded to your computer if desired here

NOTE : If the 'Other Systems Newsletter' pages for HAPPYNAK do not appear in the window below, then refresh the page.

The report can be zoomed into, made full screen or downloaded as a pdf document by using the controls provided

There are currently no manuals, leaflets or photos etc. available for downloading. If you can supply any, please get in contact with me.