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Watkin type clinometer, British, 1897-1900

1897-1900

De Lisle reflecting clinometer, British, 1900-21

1900-1921

Compensated altimeter.

Twenty-two assorted bubble tubes and levels, by T. Cooke & Sons Ltd, c. 1920. One bubble broken.

Assorted bubble tubes and levels, 1920

1920-1921

Photograph of 7" equatorial telescope

1921

Cooke Speed Pancho lens. Lens; F:75mm f/2 no. 295276.

Cooke Speed Panchro lens

Fishplate profile set, standard, end and side, for BS 60lb flat-bottomed rail, shallow fishplates, NPL No.49843, Crown Agents No.12/60/3, made by T. Cooke & Sons Ltd. for the Engineering Standards Committee, in non-original captioned fitted mahogany case, caption missing

Fishplate profile set made by T. Cooke & Sons Ltd

Fishplate profile set, standard, end and side, for BS 45lb flat-bottomed rail, angle fishplates, NPL No.12369, Crown Agents No.12/45/2, made by T. Cooke & Sons Ltd. for the Engineering Standards Committee, in original captioned fitted mahogany case

Fishplate profile set made by T. Cooke & Sons Ltd

Key profile, standard, ends and sides, sections 1" from each end, for BS 60lb flat-bottomed rail, Crown Agents No.E6, profile by T. Cooke & Sons Ltd., London & York, in original captioned fitted mahogany case

Key profile made by T. Cooke & Sons Ltd

Fishplate profile set, standard, end and side, for BS 50lb flat-bottomed rail, angle fishplates, NPL No.28150, Crown Agents No.12/50/2, by T. Cooke & Sons Ltd. for the Engineering Standards Committee, in original captioned fitted mahogany case

Fishplate profile set made by T. Cooke & Sons Ltd

Fishplate profile set, standard, end and side, for BS 80lb flat-bottomed rail, angle fishplates, NPL No.12275, Crown Agents No.12/80/2, made by T. Cooke & Sons Ltd. for the Engineering Standards Committee, in original captioned fitted mahogany case

Fishplate profile set made by T. Cooke & Sons Ltd

Rail profile set, standard, end and two sides, for BS 80lb bull-head rail, NPL No.325, Crown Agents No.12/80/3, by T. Cooke & Sons Ltd., London and York, in original captioned fitted mahogany case.

Rail profile set, T. Cooke & Sons Ltd.

Rail profile set, standard, end and two sides, for BS 45lb flat-bottomed rail, NPL No.285, Crown Agents No.12/45/1, made by T. Cook & Sons Ltd., London & York, in original captioned fitted mahogany case.

Rail profile set, T. Cooke & Sons Ltd

Photograph of 3" transit instrument, in glazed frame 17 1/4" x 21 1/4".

Photograph of 3" transit instrument

1921

Circular instrument dividing engine made by T. Cooke & Sons Ltd, London, England,1908. The cast brass dividing circle (42-inch diameter) with 1,080 teeth is fitted inlaid silver scale on a heavy cast iron table base.

Circular instrument dividing engine.

1908

Floating Zenith Telescope designed by Bryson Cookson, made by Cambridge Scientific Instrument Company with objectice lens by T. Cooke & Sons Ltd in 1900. Used at University of Cambridge, Observatories 1900-11 then the Royal Observatory, Greenwich 1911-51.

Floating Zenith Telescope designed by Bryson Cookson

1900

5 1/2 inch photo-visual refracting telescope with manual slow motion, made by T. Cooke & Sons Limited, early 20th century. The telescope is fitted on a ‘class b’ equatorial mounting. Original pedestal and clock drive are missing.

5 1/2 inch Photo-visual refracting telescope by T. Cooke & Sons Limited

1897-1921

Photograph of 18" Siderostat in glazed frame 17 1/4" x 21 1/4"

1921

Cooke wide-angle anastigmatic lens. F. 4 1/2", 108mm; series VIIB f.6.5-45 (f.11 largest useable aperture) With two lens caps, in leather case. Fits Thornton-Pickard Time and Instantaneous Camera (1990-5036/173).

Cooke Wide-angle Anastigmatic Lens

Photograph of 3" Zenith telescope, in glazed frame 17 1/4" x 21 1/4".

Photograph of 3" Zenith telescope

1921

Fishplate profile set, standard, end and side, for BS 30lb flat-bottomed rail, angle fishplates, Crown Agents No.12/30/2, made by T. Cooke & Sons Ltd. for the Engineering Standards Committee, in original captioned fitted mahogany case

Fishplate profile made by T. Cooke & Sons Ltd

Fishplate profile set, standard, end and side, for BS 30lb flat-bottomed rail, shallow fishplates, NPL No.13819, Crown Agents No.12/30/3, made by T. Cooke & Sons Ltd. for the Engineering Standard Committee, in original captioned fitted mahogany case

Fishplate profile set made by T. Cooke & Sons Ltd

Rail profile set, standard, end and two sides, for BS 30lb flat-bottomed rail, NPL 13188, Crown Agents No.12/30/1, made by T. Cooke & Sons Ltd. for the Engineering Standards Committee, in original captioned fitted mahogany case.

Rail profile, T. Cooke & Sons Ltd

Rail profile set, standard, end and two sides, for BS 80lb flat-bottomed rail, NPL No. 12274, Crown Agents No.12/80/1, made by T. Cooke & Sons Ltd. for the Engineering Standards Committee, in original captioned fitted mahogany case.

Rail profile set, T. Cooke & Sons Ltd

Rail profile set, standard, end and two sides, for BS 60lb flat-bottomed rail, NPL No. 12305, Crown Agents No.12/60/1, made by T. Cooke & Sons Ltd. for the Engineering Standards Committee, in original captioned fitted mahogany case.

Rail profile set, T. Cooke & Sons Ltd

Fishplate profile set, standard, end and side, for BS 60lb flat-bottomed rail, angle fishplates, NPL No.12370, Crown Agents No.12/60/2, made by T. Cooke & Sons Ltd. for the Engineering Standards Committee, in original captioned fitted mahogany case

Fishplate pofile set made by T. Cooke & Sons Ltd.

Rail profile set, standard, end and two sides, for BS 55lb flat-bottomed rail, NPL No.216, Crown Agents No.12/55/1, made by T. Cooke & Sons Ltd., London & York, in original captioned fitted mahogany case with British Haematite Steel Co. Ltd. transfer on lid.

Rail profile set, T. Cooke & Sons Ltd

Fishplate profile set, standard, end and side, for BS 55lb flat-bottomed rail, angle fishplates, NPL No.13324, Crown Agents No.12/55/2, made by T. Cooke & Sons Ltd. for the Engineering Standards Committee, in original captioned fitted mahogany case, with British Haematite Steel Co. Ltd. transfer on lid