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matching mechanical vibrations
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Federation University Historical Collection
Book, Mechanical Vibrations, 1964
... Mechanical Vibrations...mechanical vibrations... Mechanical Vibrations Green hardcovered book Alan Herbertson ...Alan Herbertson was a student of the Ballarat School of Mines 1962-1966.Green hardcovered bookalan herbertson, william tyrrell thomson, mechanical vibrations -
Federation University Historical Collection
Document, Documents relating to the conversion of the Courthouse to a Theatre
The School of Mines is a predecessor of Federation UniversityDocuments relating to the conversion of the Courthouse to a Theatre .1 Submission by Riley, Barden & Kirkhope Pty Ltd Consultants in Acoustics, Noise and Vibration Control .2 Submission by Anderson Connell Consultants . Consulting Mechanical & Electrical Engineers .3 Manilla folder of letters and documents relating to the conversion .1 Coburn & Associates Pty Ltd stamp in top Right Hand corner os front coverriley barden & kirkhope, anderson connell consultants, norris & partners pty ltd, courthouse theatre, courthouse conversion, courthouse, school of mines ballarat, coburn and associates, meldrum burrows and partners, l.h. vernon and associates, g.h. beanland, graham beanland, ewan jones, ron carr & company pty ltd. -
Flagstaff Hill Maritime Museum and Village
Gramophone, 1911
Until late 1925, all record players reproduced sound by purely mechanical means and relied on a so-called "amplifying" horn to efficiently couple the vibrations of the stylus and diaphragm to the space occupied by the listeners. In 1906, the Victor Talking Machine Company, Columbia's arch competitor, introduced a line of models in which the horn and other hardware were concealed within a cabinet, made to look like fine furniture rather than a mechanical device. They named the new style a "Victrola". It quickly proved to be very popular and successful. Other makers, adopting the distinctive suffix, introduced their own "-ola" internal horn machines, such as Edison's Amberolas and Columbia's Grafonolas. They were soon outselling the external horn models. At first, like nearly all other early record players, all Grafonolas were driven by a spring motor that the user had to wind up with a crank before playing a record. In 1915, Columbia began to introduce electric-motor-driven models, as a majority of urban areas had been wired to electrical grids. The electrified Grafonolas supported both alternating and direct currents from 110 to 220 volts. Electrified Grafonolas never gained the popularity enjoyed by the spring motor-driven versions due to substantially higher prices and a lack of electrical service in rural areas. Grafonolas were manufactured under the 1886 United States Letters Patent No. 341,214 which Columbia Graphophone company acquired through its predecessor American Graphophone Company. Two models were available; a portable table model and bigger stationary floor model, offering limited mobility through the application of casters. The most notable table models included Grafonola Favorite introduced in 1911 and Grafonola Savoy introduced in 1915. The most notable floor models included Grafonola Symphony Grand introduced in 1907, Grafonola Regent introduced in 1909, Columbia Mignon introduced in 1910, Grafonola Princess introduced in 1911, Columbia Colonial introduced in 1913. Various period Grafonolas were introduced in 1917 to cater to an increasingly prosperous clientele. Columbia Phonograph Company began to manufacture a series of ornate, limited edition period machines. These were highly priced (some as high as US$2,100 ) special orders that provided consumers with options to choose styles which matched their interior décor. Although the Gramophone does not have a large monetary value, it is of social significance as it demonstrates the progress made in audio reproduction from the first Edison cylinder machines to improvements that allowed ordinary people to be able to buy music discs and enjoy music in their own homes. Gramophone with internal horn, floor model, mechanically operated by a crank handle. Colombian Grafonola Princess (Type F2) brand. Gramophone is in a wooden display cabinet with room for record storage underneath and is complete with handle. Manufactured in 1911 by Columbia, USA."Columbia Grafonola Type 2 Made in USA"flagstaff hill, warrnambool, shipwrecked-coast, flagstaff-hill, flagstaff-hill-maritime-museum, maritime-museum, shipwreck-coast, flagstaff-hill-maritime-village, record player, gramophone, mechanical gramophone, floor model gramophone, gramophone record, columbia graphophone company, american graphophone company, columbia, grafonola, grafonola princess, music, playing music, audio reproduction, sound equipment, domestic entertainment, 1911 gramophone