Heap's topophone.

Original Digital object not accessible

Description

Reference code

VC703-B12-i703073

Level of description

Item

Title

Heap's topophone.

Date(s)

  • Circa 1897 (Creation)

Extent

32 in. long. Funnels are 12" long. Receptor openings are 3 x 3.25"

Scope and content

Invented by Lieutenant Colonel David Porter Heap of the United States Lighthouse Service, the Topophone (from the Greek 'topos' = place and 'phone' = sound) is designed to assist the ear in determining the direction from which a sound originates. Two curved metal funnels in opposition with each other at the end of a long wooden rod. Small openings at the ends of the funnels and 3.5 inch wide openings at the receptor portion of the funnels. The rod can be folded and there is a suspension ring that allows the user to wear the device and one that protrudes when the device is folded to hold in place.

System of arrangement

In box

Conditions governing access

The collection is open and accessible for research.

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Preferred Citation:

Item description, Reference Code, Bernard Becker Medical Library Archives, Washington University in St. Louis.

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Custodial history

Immediate source of acquisition

1984.001.0073

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Alternative identifier(s)

Variant Control Number

VC703073

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