Level

1981/004

8 in precision ‘quickset’ level by ER Watts & Son

SKU: 1981/004 Categories: ,

Description

8 in precision ‘quickset’ level by ER Watts & Son. Used to measure vertical distance between points in conjunction with a levelling staff.

The ‘quickset’ level took less time to set up than a conventional 3 or 4 screw instrument. It has a lilting telescope and a ball joint for rapid setting up. By means of of this joint, used in conjunction with a circular bubble, the level can be roughly leveled and then the final adjustment is made with the slow-motion screw until the main bubble is truly horizontal.

The accuracy of the level depends solely upon the relation of the bubble to the telescope, and is not dependent upon the true verticality of the centre. Since the bubble can be  viewed at the same time of the staff, by means of the bubble reading mirror, there is no possibility of error.

Additional information

Acquisition Number

1981/004

Item Type

Short Description

"Quickset" level

Manufactured by

Date of Manufacture

c. 1940

Sub-items

Leather case

Supporting Items

None

Makers Number

14901

Marks

"ER WATTS & SON LONDON No 14901". Case marked "14901" and "5".

Dimensions (mm)

270 x 140 x 90

Donor

Date Donated

May 1981

Materials

Bronzed brass

Condition

Good

Display Location