The main distinction between the Bowman and Malins engines was that the latter were smaller, came only on metal bases,[1] and had the chimney attached to the top of the boiler in a locomotive style.

As the war intensified, the St. Mary Row factory was put on hold, and wartime interests took precedence, although Malins continued producing a limited number of engines throughout the conflict.

The SE1 and SE2 were produced in their new form for several months, but due to challenges in acquiring production materials during post-war rationing, the SE1 and SE2 switched back to the locomotive-style chimney.

During the immediate post-war period, several other manufacturers, such as Plane Products, Cyldon, SEL, Luton Bowman, and Burnac, were also producing steam toys.

In some cases, the Griffin badge could be found alongside the warning labels applied to all stationary engines in 1976, explaining the use of inappropriate fuel containers and refueling techniques.

However, notable differences included a new black die-cast chimney and a narrow solid fuel burner designed to accommodate a broken tablet.

These included the presence of a solid fuel burner, a sight glass, a whistle in place of the steam dome, and plastic gears instead of metal ones on the crankshaft, specifically designed for operating Meccano models.

In the case of the SP4D variant, it utilized a uni-directional engine unit and featured a larger pulley specifically designed to drive a dynamo connected to a small 3V lamp.

Additionally, the right-hand end of the crankshaft on the SP5 Mk2 features a more efficient and visually appealing crank disc for improved balance and smoother operation.

The company manufactured a variety of model workshop equipment with bodies and bases made of either cast iron or diecast metal.

The early tools had simple flat bases with Meccano-spaced holes and pulleys resembling Meccano components, consisting of roughly made sandcast iron bodies.

Around the same time, when Malins Engineers moved to Camden Street, Birmingham, power presses were acquired, leading to the introduction of raised bases for the brass-wheeled tools and the polisher/grinder.

Early versions of the SR1, along with the TE1 steam tractor and stationary range, were constructed with screw-together assemblies and featured a brass vaporizing lamp attached to the scuttle.

[5] Power is transmitted to the rear axle through a drive band connected from a small pulley on the flywheel to the rim of one of the back wheels.

The front axle of the model is mounted on a central pivot with a basic copper stub spring that provides a rudimentary form of suspension.

The engine utilizes a double-reduced drive system with a large intermediate pulley, similar to the flywheel, allowing for more realistic speed and enhanced pulling power.

Variations of the SW1 include a blue version with white lettering on the rear payload body and the SW1B model featuring deep brown bodywork and cream wheels.

Around 1977, they transitioned to solid fuel pan burners and, by 1978, incorporated a sight glass instead of the typical overflow plug, with blue paint replacing the previous green color.

The rear scuttle, designed to hold the burner, is identical to those found on the SR and TE models but fits snugly between the two girder chassis parts.

The Showman's model features twisted-brass canopy supports, a chain-steering drum (which is non-functional), and a vibrant paint scheme with a maroon boiler and yellow wheels.

Early versions featured the traditional overflow plug, which was later replaced by the sight glass in 1978 to comply with the new Euro Toy Regulations.

The Meteor featured a single-cylinder engine similar to the ME1, while the Conqueror relied on a battery with a slightly modified inner hull to accommodate four D-type cells held in a metal holder.

Mamod's foray into electric power with the Conqueror proved even less successful than the Meteor, with approximately 200 units sold at the same price as the steam version.

These locomotives featured a pair of double-acting, oscillating cylinders connected to a rotary reversing valve, allowing for slow and self-starting operations in theory.

The current range comprises redesigned versions that retain the same fundamental configuration while offering various mechanical and cosmetic upgrades to enhance Mamod locomotives.

A popular upgrade involved fitting the locomotive with a methylated spirit burner, generating greater heat and enabling higher boiler pressure and increased hauling capacity.

In 1980, the company faced receivership primarily due to the substantial financial investment in the SP series of engines as well as the new RS1 and RS2 railway sets.

This occurred during a period of economic downturn when many companies were encountering financial challenges, leading banks to demand loan repayments and finance agreements.

Mamod ceased to produce its diverse range of mobile engines, stationary models, machine tools, as well as O and 1 gauge railway locomotives in summer 2024.

[8] Newer models can use aftermarket butane gas burners, which is likely to become the standard due to restrictions on mailing flammable substances, including solid fuel tablets.