ZME Motoruch

ZME Motoruch
Headquarters	Niepołomice, MA, Poland
Founded	1940s?
Defunct	1980s?
Products	Electric motors Industrial equipment Vehicular electric sirens Hand-powered sirens

ZME Motoruch was a Polish electrical company based in Niepołomice, MA. Throughout the company's run it produced electric motors, industrial equipment, and the focus of this article, vehicular and hand-powered sirens. Due to the lack of information on ZME, little is known about their sirens or how many models were produced. The names of 3 models are currently known, these being the:

Products

Vehicular Electric Sirens

MSS-1

The MSS-1 is a small vehicular siren produced by ZME Motoruch during the company's operation. The siren consists of a small motor driving a wide 6 port rotor inside of a 6 port stator. The siren's tag is bolted on to the top of the motor. There is a vertical grill in front of the rotor to prevent injury, as the siren is small enough to be handheld. The siren is held on top of a small swivel mount connected to a rounded base. It is unknown when the MSS-1 was discontinued, but it was likely sometime in 1989.

MSS-2

The MSS-2, also known as the N13, is essentially a larger MSS-1, featuring a larger motor and larger ports, likely increasing sound output. Like the MSS-1, the siren consists of a small motor driving a wide 6 port rotor inside of a 6 port stator. The siren's tag is bolted on to the top of the motor. There is a vertical grill in front of the rotor to prevent injury, as the siren is small enough to be handheld. The siren is held on top of a small swivel mount connected to a rounded base. It is unknown when the MSS-1 was discontinued, but it was likely sometime in 1989.

Hand Powered Sirens

PS-13

The PS-13 is arguably ZME's most well-known siren. The PS-13 is simple in terms of design, consisting of a small hand crank with a wooden handle driving 2 large gears encased inside of the siren's round housing. The smallest of these 2 gears has a retainer on top of it, which is connected to a small spring. The gears are also covered by a small thin sheet of metal. On top of all of this is the 12 port stator inside of the rotor. The stator is covered by a thin grill wrapping around it as well as another grill on the front of the rotor to prevent injury, as the siren is small enough to be handheld. 4 large bolts hold the stator and back housing in place. The siren is held up by a small stand, similar to that of a Q-Siren's.

The PS-13 came in 3 colors, these being red, green, and silver, with red being far more common. Some units have tags, while others do not. Only a handful of PS-13 units are known to remain, with most being in private possession or in museums. These were produced until 1979 at the latest.