Mamod was a toy manufacturer that was based in Britain that specialized in producing live steam models until closure in 2024. The company was founded in Birmingham in 1937 by Geoffrey Malins. The name "Mamod" is a combination of "Malins Models." Initially, the company manufactured stationary steam engines, which were originally sold under the 'Hobbies' brand. Subsequently, Malins introduced the brand name 'Mamod.' Invariably always pronounced wrongly, the correct pronunciation of the name is "May-mod" - MAlins-MODels in short.
Over time, Mamod expanded its range to include models of road rollers, traction engines, steam wagons, steam locomotives and other steam-powered road vehicles. These models were primarily intended for the toy market and were designed to be user-friendly and operate at low boiler pressures for safety, although they were not precise scale models.
SC, SE and Minor series stationary engines (1937–39)
The SE range of engines traces its origins back to 1936, when Geoffrey Malins began manufacturing engines for Hobbies of Dereham. These engines were loosely based on the Bowman engines previously produced by Geoffrey Bowman Jenkins for Hobbies up until 1935. The main distinction between the Bowman and Malins engines was that the latter were smaller, came only on metal bases,punched with 'Meccano' spaced holes and had the chimney attached to the top of the boiler in a locomotive style. Starting in 1937, Malins decided to create his own line of engines in addition to those made for Hobbies. With a few minor differences, such as lighter paint shades and a Mamod badge, the engines were almost identical to the Hobbies range. Over time, the differences between Mamod and Hobbies became less noticeable, and a Mamod-badged SE4 engine could be found in the 'Hobbies colours.' This marked the beginning of a philosophy that aimed to sell engines promptly and minimize waste. By 1940, any remaining distinctions between the two ranges had practically disappeared.
With the outbreak of the Second World War, Malins severed his ties with Hobbies, and the SC series of engines became the last steam toys sold under the Hobbies brand. Malins realised that focusing on his own engines would be more profitable. 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.
After the war, the business was revitalized, and by 1946, a limited range of steam toys, including the SE1, SE2, Minor 1, and tools, were being manufactured. The pre-war SE3 and SE4 models were discontinued, along with the short-lived twin-cylinder Minor 2. The post-war engines, except for the Minor 1 (MM1), featured base-mounted chimneys. However, in the following years, the design reverted to the locomotive-style chimney, resembling the pre-war models. Apart from these changes, the pre-war and post-war models remained largely identical. 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. The MM1 engine remained almost unchanged. Until 1948, the models still utilized flat bases and cast iron bodies.
By 1948, the SE range underwent an update, incorporating brass engine frames branded with the Mamod logo and hot-stamped brass flywheels. The SE1 and SE2 models also received regulators. Additionally, a new model called the Minor 2 (MM2) was introduced, featuring a single-cylinder engine unit and serving as a larger version of the MM1. Wick burners with 1, 2, or 3 wick tubes were used in all engines. In 1949, with the company's relocation to Camden Street, the expensive brass engine frames were replaced with pressed steel ones as a cost-saving measure. The design resembled that of some Marklin engines. The SE1 and SE2 models now feature superheating in their boilers. The SE2 retained its regulator, while the SE1 had it removed. The MM1 engine became the first in the range to have a raised, pressed base. This configuration remained unchanged until 1953, when cheaper Mazak material was gradually introduced, leading to the replacement of brass flywheels. The company's approach emphasized continuous product development to maintain competitive prices. During the immediate post-war period, several other manufacturers, such as Plane Products, Cyldon, SEL, Luton Bowman, and Burnac, were also producing steam toys.
At the beginning of 1954, the SE range received raised bases and underwent cosmetic updates and changes. By 1958, all models except the MM1 were equipped with new vaporizing spirit burners, introduced in 1957 along with the twin-cylinder SE3. Additional cosmetic changes included updated boiler bands and fireboxes. Engines produced during the late 1950s period featured combinations of old and new parts, commonly referred to as 'transitional' engines. By the mid-1960s, pop rivets were used for securing the engine frames, along with other aesthetic alterations, across the entire Mamod range. In 1967, the SE range underwent another update, resulting in the introduction of the SE1a and SE2a models, which replaced the SE1 and SE2, respectively. The superheating feature was removed, and simplified pipework was implemented. The SE2a also received a reversing lever, similar to the 'MEC1' Meccano engine introduced in 1965. Gradual changes were made to the paint colour, boiler end cap, whistle design, and decal layout.
From 1967 to 1972, the Se1, Se2, and Se3 models occasionally had different green paint finishes on their engine frames. This paint, resembling a hammered effect, was likely obtained as a cost-saving measure by the managing director at the time, Eric Malins. Steve Malins confirmed that this was the case as the company sought to reduce production costs. However, the Minor range did not receive this paint finish. The SE3 remained unchanged, except for the introduction of a Griffin and George (educational suppliers) version in 1969. This engine stood out as a notable variation among Mamod's largest post-war stationary engines. It featured a silver-soldered boiler (at the insistence of G&G) and had a steam pipe union nut at the boiler instead of the usual stopcock. It also sported an additional foil G&G lozenge logo by the engine. Approximately 2,000 of these engines were produced until the mid-1970s, exclusively sold to schools and accompanied by a manual for use in laboratory experiments. Later examples of this engine were standard SE3 models, but with a revised G&G logo design. 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.
The 1970s marked the peak of Malins Engineers. In 1970, the MM1 received a vaporizing burner, and in 1975, both Minors were fitted with overflow plugs. In 1977, the engines were converted to solid fuel for the domestic market (a change that had already been implemented for export models). In 1978, the entire range, except for the MM1, had sight glasses installed on the boiler in place of the overflow plug. Towards the end of the 1970s, the SE range was considered outdated, leading to its replacement by the SP range in 1979.
The SP models were modernized versions of the earlier SE models, incorporating changes for safety as well as cosmetic purposes. There is no strict correspondence between models in the SE and SP ranges. A comparison between the two ranges can be seen in the following table:
Pre-war Post-war SP era Comment Minor 1 1939–40 Minor 1 1946–79 SP1 1979–85 Minor 2 1939–40 2 cyl Minor 2 1948–79 SP2 1979-2024 1 cyl SE1 1936–37 SE1 1946–67SE1A 1967–79 Meccano 1965–76 SP3 1979–85 SE2 1936–37SC2 1939–40 SE2 1946–67SE2A 1967–79 SP4 1979–2024 (inc SP4D) SE3 1936–37SC3 1939–40 1 cyl SE4 1936–37SC4 1939–40 SE3 1957–79 (inc G&G version) SP5 MK1 79 to 85 Mk2 2001–2024 2 cyl SP6 slide valve SP7 twin cylinder slide valve SP8 beam engine ME1 1936–40 (Hobbies and Mamod) ME1 1958–85 (Mamod only) ME2 1958–65ME3 1965–72
Meccano engine
From 1965 to 1976, Malins manufactured a steam engine according to the specifications of the Meccano company under the Meccano label. It featured a specialized base designed to facilitate integration into Meccano models and included a mechanism that enabled the cylinder to shift in relation to the inlet and exhaust, enabling reverse operation.Meccano MEC1 toysteambible.org
Following the discontinuation of the Meccano-branded version, the same engine, with minor adjustments, was later released under the Mamod brand as the SP3 model. Although the original Meccano-branded version did not have an official name or model number, it is commonly referred to as the MEC1.
The SP Range 1979–to 2024 SP1
The SP1 model was developed based on the Mamod Minor 1, which had been in production since 1939 and was replaced by the SP1. It shared similarities with the Minor 1 in terms of the boiler, engine unit, and flywheel, particularly those without crank discs. However, notable differences included a new black die-cast chimney and a narrow solid fuel burner designed to accommodate a broken tablet. Unlike other SP engines, the SP1 featured a water plug instead of the standard Mamod water sight glass due to the smaller size of its boiler. The firebox remained unchanged from the older Minor 1, and some SP1 engines were built with the old Mamod Minor 1 boiler. The exhaust system was a simple open port, similar to the Minor 2 and MEC1 engines. Despite their limited power and torque, these engines were capable of operating at least one or two miniature tools. The production of the SP1 was discontinued in 1985 after a total of 27,500 units had been manufactured.
Introduced Replacing Discontinued Number Produced 1979 MM1 1985 27,500
SP2 and SP2D
The SP2, which debuted in 1979, was a newly designed model that served as a replacement for the Mamod Minor 2. It shared several similarities with the Minor 2, including the same type of boiler, engine unit, and frame. The exhaust system featured a simple open port, similar to that of the Minor 2. Additionally, there was a variant known as the SP2D, equipped with an integrated dynamo. The SP2D boasted a larger-diameter flywheel that powered the dynamo, positioned inside the base of the chimney, via a belt. At the top of the chimney, a small LED bulb was installed. These engines were remarkably powerful for their size and capable of effortlessly driving a complete workshop comprising four tools.
As of 1995, the production of SP2 models was ongoing, with a total of 36,878 units manufactured.
Introduced Replacing Discontinued Number Produced 1979 MM2 - 36,878 (to 1995) Still in production
Notable variations: Early engine frames were initially painted blue but were later changed to black during the 1980s. Some sight glasses were secured by screws instead of pop rivets. The sight glass cover could be made of silver metal or brass.
SP3
The SP3 model was primarily based on the MEC1 Meccano engine, which was initially introduced in 1965. In essence, the SP3 shared many similarities with the MEC1, with a few notable differences. 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. Similar to the MEC1, the exhaust system featured a simple open port integrated into the engine frame. The engine exhibited dual makers' marks, with both a Mamod and a Meccano-style scalloped edge decal. The baseplate was painted silver, and the boiler utilized a standard Mamod drawn-type tube, also found in the SP2, SP4, and SR1a models. The SP3 possessed ample power to drive an entire range of workshop tools.