the singer model 27 and later model 127 were a series of lockstitch sewing machines produced by the singer manufacturing company from the 1880s to the 1960s. the 27 and the 127 were full-size versions of the singer 28 and later model 128 which were three-quarter size . they were singer's first sewing machines to make use of 'vibrating shuttle' technology.. millions were produ
secondary support springs are attached to for heavy duty operation, preventing the vibration of the top unit from reaching the floor. the base of the machine bottom unit consists of top and bottom eccentric weights attached to a heavy duty motor.
the rotary hook aka rotating hook is a bobbin driver design used in lockstitch sewing machines of the 19th and 20th century and beyond. it triumphed over competing designs because it can run at higher speeds with less vibration.
the blind spot monitor is a vehicle-based sensor device that detects other vehicles located to the driver’s side and rear. warnings can be visual, audible, vibrating, or tactile.. however, blind spot monitors are an option that may do more than monitor the sides and rear of the vehicle. they may also include 'cross traffic alert', 'which alerts drivers backing out of a parking space when .
a sybian, or sybian saddle, is a masturbation device primarily designed for use by women. it consists of a hollow saddle-like seat containing two powerful electric motors, motor speed controller boards, gearing, pulleys and a platform on cranked axles such that a ridge on the top of the unit can be made to vibrate through a range of speeds as set using a wired external hand controller, and an upward pointing shaft set on an angle through the ridge can be made to rotate at speeds from zero rpm to
this coupling is used to connect shafts which have a small parallel misalignment, angular misalignment or axial misalignment. in this coupling the rubber bushing absorbs shocks and vibration during its operations. this type of coupling is mostly used to couple electric motors and machines. constant velocity
megola motorcycle with rotary engine mounted in the front wheel. the rotary engine was an early type of internal combustion engine, usually designed with an odd number of cylinders per row in a radial configuration, in which the crankshaft remained stationary in operation, with the entire crankcase and its attached cylinders rotating around it as a unit.
in 1904, the putney motor works completed a new v12, 150bhp 18.4 litre engine – the first v12 engine produced for any purpose. this one was manufactured for two russian brothers making a dirigible. they ran out of money and commander may bought it on a sale or return basis for motor boat racing, having some moderate success in 1908. the .
a tachometer revolution-counter, tach, rev-counter, rpm gauge is an instrument measuring the rotation speed of a shaft or disk, as in a motor or other machine. the device usually displays the revolutions per minute rpm on a calibrated analogue dial, but digital displays are increasingly common.. the word comes from greek τάχος táchos 'speed' and μέτρον métron 'measure' .
types of mechanical screening. there are a number of types of mechanical screening equipment that cause segregation. these types are based on the motion of the machine through its motor drive. circle-throw vibrating equipment - this type of equipment has an eccentric shaft that causes the frame of the shaker to lurch at a given angle. this .
an electric motor is an electrical machine that converts electrical energy into mechanical energy. most electric motors operate through the interaction between the motor's magnetic field and electric current in a wire winding to generate force in the form of torque applied on the motor's shaft. electric motors can be powered by direct current sources, such as from batteries, motor vehicles or rectifiers, or by alternating current sources, such as a power grid, inverters or electrical generators.