Omnigraph No. 2
Omnigraph Manufacturing Company; New York, NY
- País
- Estados Unidos
- Fabricante / Marca
- Omnigraph Manufacturing Company; New York, NY
- Año
- 1920 ?
- Categoría
- Teaching aids-material
- Radiomuseum.org ID
- 340447
- Gama de ondas
- - no hay
- Tensión de funcionamiento
- Pilas
- Altavoz
- - solamente tiene Auricular (mini) de oido
- Material
- Materiales diversos
- de Radiomuseum.org
- Modelo: Omnigraph No. 2 - Omnigraph Manufacturing
- Forma
- Formas varias descritas en notas aparte.
- Ancho, altura, profundidad
- 450 x 155 x 255 mm / 17.7 x 6.1 x 10 inch
- Anotaciones
-
The Omnigraph No. 2 was made by the Omnigraph Manufacturing Company of New York. It was used to teach Morse Code to new telegraph and radio operators.
The original patent for this device were issued to Charles Chinnock on Aug 25, 1903 (US patent 736,936). The company appears to have been founded circa 1900, and to have ceased operation circa 1931.
The Omnigraph model shown here consists of a variable speed spring-powered motor and a stack of aluminum disks which have patterns of dots and dashes "encoded" in their serrated edges. As the motor runs, the disks rotate, a "finger" on a leaf spring follows the pattern on the disks, and operates a set of contacts.
- Peso neto
- 7 lb (7 lb 0 oz) / 3.178 kg
- Precio durante el primer año
- 30.00 USD
- Mencionado en
- Radio News (April-May 1922 advertisement)
- Documentación / Esquemas (1)
- Patent (US patent No. 736,936 Patented Aug. 25, 1903)
- Documentación / Esquemas (2)
- Patent (US patent No. 773,374 Patented Oct. 25, 1904)
- Autor
- Modelo creado por Gary Berg. Ver en "Modificar Ficha" los participantes posteriores.
- Otros modelos
-
Donde encontrará 2 modelos, 2 con imágenes y 0 con esquemas.
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Colecciones
El modelo Omnigraph No. 2 es parte de las colecciones de los siguientes miembros.