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String trimmers powered by an internal combustion engine have the engine on the opposite end of the shaft from the cutting head, while electric string trimmers typically have an electric motor in the cutting head, but there are other arrangements, such as where the trimmer is connected to heavy machinery and powered by a hydraulic motor.
The lawn mower was invented in 1830 by Edwin Beard Budding of Stroud, Gloucestershire, England. [1] Budding's mower was designed primarily to cut the grass on sports grounds and extensive gardens, as a superior alternative to the scythe, and was granted a British patent on August 31, 1830.
Pierceable gas cylinder Gas cylinder with Lindal B188 valve.. EN 417 is a European Standard concerning non-refillable metallic cartridges for liquefied petroleum gases.The standard specifies material, construction, inspection and marking requirements for cartridges with or without a valve, for use with portable appliances which comply with the requirements of EN 521.
Trimmer potentiometers or "trimpots" A trimmer, or preset, is a miniature adjustable electrical component. It is meant to be set correctly when installed in some device, and never seen or adjusted by the device's user. Trimmers can be variable resistors (potentiometers), variable capacitors, or trimmable inductors.
Lehr (surname) Lehr, North Dakota, U.S. Lehr Infantry Battalion of the Prussian and Imperial German Armies, 1819–1914; Lehr Infantry Regiment of the German Army in World War I; Lehr-Brigade (mot.) 900, a German Army brigade during World War II; Panzer Lehr Division, a German armored division during World War II; Lehr, a district of Ulm, Germany
Inspector at the cool end of a lehr. In the manufacture of float glass, a lehr oven is a long kiln with an end-to-end temperature gradient, which is used for annealing newly made glass objects that are transported through the temperature gradient either on rollers or on a conveyor belt.
Lew Lehr (May 14, 1895 – March 6, 1950) was a comedian, writer and editor known for his humorous contributions to Fox Movietone News, his radio appearances and his popular catchphrase, "Monkeys is the cwaziest peoples." Born in Philadelphia, Pennsylvania, Lehr appeared in vaudeville and musical theater.
The Panzer-Lehr-Division (tank teaching division) was an elite German armoured division during World War II. It was formed in 1943 onwards from training and demonstration troops ( Lehr = "teach") stationed in Germany, to provide additional armored strength for the anticipated Allied invasion of western Europe . [ 7 ]