Conic pendulum - Instrument's card

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Conic pendulum

Dating

1893

This simple device, in which the balls, when they are in rotation, are separated due to the centrifugal force, has been employed as a regulator in steam engines. The device is in fact known as the Watt's governor and was used to stabilize the flow of steam in the machine on which it was installed.

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Conic pendulum

Cataloghi	Nº	Voce
Inv. 2016	137	Conic pendulum Provisional numbering!
Inv. 1870	627	Pendolo conico

Section

Mechanics

Window

Conditions

Complete

Working D

Intact

Large
Width
Height

Materials

Sources

Bernardi G., Apparecchi di fisica, III Edizione, Ditta Prof. Gaetano Bernardi, Tranto, 1931, pag. 12, fig. 5069
Magrini R., Apparecchi per l'insegnamento della fisica, Officine Galileo, Firenze, 1940, pag. 27, fig. B284
Resti E., Catalogo generale di apparecchi per l'insegnamento della fisica, Ditta Emilio Resti di Franco Brambilla, Pubblicazi, Milano, 1930, pag. 18, fig. 75
Tarquini A., Apparecchi di fisica, Antonio Tarquini, Roma, 1928, pag. 28, fig. 118

The additional indications which integrate the items of the conservation's state have the following meaning: (?) = maybe complete; M = maintenance; P = partial; R = restored; D = used for teaching; NC = not checked; X = impossible to verify.

In order to avoid that instruments' cards without the english description text of the device be directly selected, I added a special filter with which only the complete cards are shown in the menu. Anyhow all the partial english instruments' cards (with instrument's dating, dimensions, state of conservation...) can always be seen even if they haven't the english description text. To read this uncomplete cards is sufficient to click, for example, on an instrument's picture or on the word "View" of the table column called "Card" every time they appear in the other pages of this database.