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H10065 Tape chronograph in storage box, serial number 5066, metal / wood / paper, made by Telephones LeLas, Paris, France, used at Sydney Observatory, Sydney, New South Wales, Australia, 1909 -1950. Click to enlarge.

Portable tape chronograph made by LeLas

Made
A chronograph is an instrument for the graphical recording of events and the time at which they occurred. It was mounted on a pedestal and was used to check the accuracy of whichever clocks were connected to the chronograph through a switchboard. Tape chronographs usually consist of a constant speed paper-tape driving mechanism and needles, actuated by electro-magnets, these leave pin-prick marks in the paper tape.

This chronograph is contained in a wooden case which was provided with a …

Summary

Object No.

H10065

Object Statement

Tape chronograph in storage box, serial number 5066, metal / wood / paper, made by Telephones LeLas, Paris, France, used at Sydney Observatory, Sydney, New South Wales, Australia, 1909 -1950

Physical Description

Tape chronograph in storage box, serial number 5066, metal / wood / paper, made by Telephones LeLas, Paris, France, 1909 -1950, used at Sydney Observatory, Sydney, New South Wales, Australia.

A portable tape chronograph contained within a wooden box with a drop front and hinged lid that enables the chronograph to slide out for use. The chronograph consists of a brass rectangular box, containing a spring driven tape drive, that is fixed to a rectangular wooden base board. There is a lever at the base of the metal box that switches the mechanism on. A winder key can be attached to a spoke above the switch. When not in use, the winder key is stored on a spoke fixed to the wooden base board. Two metal levers on the top of the chronograph fold out to accommodate two brass reels wound with blue paper. When not in use, the two reels wound with blue paper are stored on two spokes fixed to the inside back of the box. In one corner of the box is cylindrical metal compartment and in the opposite corner is a sprung brass compartment. The remnants of a leather strap can be seen on either side of the outside of the box. Two metal catches on the outside of the box hold the front and lid of the box closed.

Observatory stock number 191.

Production

Notes

The chronograph was manufactured between 1909 and 1950 by Telephones Le Las, 13 Rue de Vaugirard, Paris, France.

Telephone LeLas was established in 1909 as a small telecommunications company in Paris and appears to be still manufacturing a wide range of telemetry and timing mechanisms together with clocks and telephones.

History

Notes

The chronograph was used at Sydney Observatory, Observatory Hill, Sydney, New South Wales, Australia.

Source

Credit Line

Sydney Observatory Collection, 1983

Acquisition Date

12 December 1983

Cite this Object

Harvard

Portable tape chronograph made by LeLas 2020, Museum of Applied Arts & Sciences, accessed 17 January 2022, <https://ma.as/230744>

Wikipedia

{{cite web |url=https://ma.as/230744 |title=Portable tape chronograph made by LeLas |author=Museum of Applied Arts & Sciences |access-date=17 January 2022 |publisher=Museum of Applied Arts & Sciences, Australia}}