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Wooden model of footstep bearing for a water turbine

Kinematics

1890

Model of breast water wheel with pentrough sluice

Motive Power

1868

Schwartzkopf's universal spanner, model / J Schröd

Hand and Machine Tools

1862-1888

Two heart wheels in gear transmitting a variable velocity ratio, teaching model / J. Schröder, 1868

Two heart wheels in gear transmitting a variable velocity ratio

Kinematics

1868

Wooden model of wall bracket, teaching model / J S

Mechanical Power Transmission

1868

Model of two conoidal pulleys with open belt

Kinematics

1888

Demonstration model of a differential gear made by

Mechanical Power Transmission

1890-1905

Model showing by wire hyperboloidal pitch surfaces of skew level wheels.

Model showing by wire hyperboloidal pitch surfaces

Kinematics

c. 1889

Bottle for Gas-Oedem serum

Public Health & Hygiene

1900-1910

Complete set of cardboard models of second order s

Mathematics

c.1900

Model of crank shaft bearing with two adjusments,

Kinematics

1888

Wooden model, scale 1:2, of axle box for rolling stock

Railway Models

1888

Model of Houldsworth's differential motion (made by J. Schroder)

Model of Houldsworth's differential motion (made b

Kinematics

1883

Ratchet wheel provided with two ratchets, pawl and half pawl, teaching model / J Schröder, Germany, 1868

Ratchet wheel provided with two ratchets, pawl and

Kinematics

1868

Model of a mangle wheel with varying velocity

Model; mangle wheel with varying velocity

Kinematics

1890

Model of mangle wheel and pinion (made by Schroder)

Model of mangle wheel and pinion (made by Schröder)

Kinematics

1883

Bottle of magnesium peroxide, in original carton, supplied by H.R.Napp, Ltd. of London

Bottle of magnesium peroxide, in original carton,

Materia Medica & Pharmacology

Model, of Secret Mortice and Tenon carpentry joint, combined with a Mitre carpentry joint, joining three beech-wood blocks: stamped with ‘60’ and ‘67’; over-laid in ink and pencil-marked with ‘67’, by Polytechnisches Arbeits-Institut J. Schröder Atkiens-Gesselleschaft, Darmstadt, Hesse, Germany, 1868

Model, of Secret Mortice and Tenon, combined with a Mitre carpentry joint

Building Construction

1868

Model, of Dovetail Scarf carpentry joint, with round peg fitted, joining two beech-wood blocks: stamped with ‘5’, by Polytechnisches Arbeits-Institut J. Schröder Atkiens-Gesselleschaft, Darmstadt, Hesse, Germany, 1868

Model, of Dovetail Scarf carpentry joint

Building Construction

1868

Model, of Secret Mortice and Tennon carpentry joint, joining two beech-wood blocks: stamped with ‘58’, by Polytechnisches Arbeits-Institut J. Schröder Atkiens-Gesselleschaft, Darmstadt, Hesse, Germany, 1868

Model, of Secret Mortice and Tennon carpentry joint

Building Construction

1868

Model, of Tabled Scarf carpentry joint with centre wedge fitted, joining two radiused beech-wood blocks: written in ink with ‘69’, by Polytechnisches Arbeits-Institut J. Schröder Atkiens-Gesselleschaft, Darmstadt, Hesse, Germany, 1868

Model, of Tabled Scarf carpentry joint

Building Construction

1868

Model, of Triple-Notched Secret Mortice and Tenon carpentry joint, with two round pegs fitted, joining two beech-wood blocks: stamped with ‘64’ and over-laid in ink, by Polytechnisches Arbeits-Institut J. Schröder Atkiens-Gesselleschaft, Darmstadt, Hesse, Germany, 1868

Model, of Triple-Notched Secret Mortice and Tenon carpentry joint

Building Construction

1868

Model, of Half-Lap Scarf carpentry joint, with round peg fitted, joining two beech-wood blocks: stamped with ‘3’, by Polytechnisches Arbeits-Institut J. Schröder Atkiens-Gesselleschaft, Darmstadt, Hesse, Germany, 1868

Model, of Half-Lap Scarf carpentry joint

Building Construction

1868

Model, of Stop-Splayed Scarf carpentry joint, with round peg fitted, joining two beech-wood blocks: stamped with ‘7’, by Polytechnisches Arbeits-Institut J. Schröder Atkiens-Gesselleschaft, Darmstadt, Hesse, Germany, 1868

Model, of Stop-Splayed Scarf carpentry joint

Building Construction

1868

Model, of Housing ‘Socket’ (channel) carpentry joint, on single beech-wood block: stamped with ‘41’ on reverse, by Polytechnisches Arbeits-Institut J. Schröder Atkiens-Gesselleschaft, Darmstadt, Hesse, Germany, 1868. This was constructed to fit (1868-31/25) Model, of Stopped Housing ‘Pin’ (channel filler) carpentry joint, on single beech-wood block: stamped with ‘41’, by Polytechnisches Arbeits-Institut J. Schröder Atkiens-Gesselleschaft, Darmstadt, Hesse, Germany, 1868’.

Model, of Stopped Housing ‘Socket’ (channel) carpentry joint

Building Construction

1868

Model, of Tenoned Scarf carpentry joint, with central wedge fitted, joining two beech-wood blocks: stamped with ‘17’, by Polytechnisches Arbeits-Institut J. Schröder Atkiens-Gesselleschaft, Darmstadt, Hesse, Germany, 1868

Model, of Tenoned Scarf carpentry joint

Building Construction

1868

Model, showing Scribing marking, preparation for Oblique carpentry joint, on single beech-wood block: stamped with ‘2’, by Polytechnisches Arbeits-Institut J. Schröder Atkiens-Gesselleschaft, Darmstadt, Hesse, Germany, 1868

Model, showing Scribing marking, preparation for Oblique carpentry joint

Building Construction

1868

Model, of Mitre carpentry joint, with pencil marks for Dovetail Housing carpentry joint, on single beech-wood block: stamped with ‘24’, by Polytechnisches Arbeits-Institut J. Schröder Atkiens-Gesselleschaft, Darmstadt, Hesse, Germany, 1868. This was constructed to fit with (1868-31/30) Model, of Mitre carpentry joint, with pencil marks for Dovetail Housing carpentry joint, on single beech-wood block: stamped with ‘24’, by Polytechnisches Arbeits-Institut J. Schröder Atkiens-Gesselleschaft, Darmstadt, Hesse, Germany, 1868.

Model, of Mitre carpentry joint, with pencil marks for Dovetail Housing carpentry joint

Building Construction

1868

Model, of Stopped Housing ‘Pin’ carpentry joint, with bevelled leading edge, on single beech-wood block: stamped with ‘46’, by Polytechnisches Arbeits-Institut J. Schröder Atkiens-Gesselleschaft, Darmstadt, Hesse, Germany, 1868. This was constructed to fit with (1868-31/18) Model, of Stopped Housing ‘Pin’ carpentry joint, with bevelled leading edge, on single beech-wood block: stamped with ‘46’, by Polytechnisches Arbeits-Institut J. Schröder Atkiens-Gesselleschaft, Darmstadt, Hesse, Germany, 1868.

Model, of Stopped Housing ‘Pin’ carpentry joint

Building Construction

1868

Aloin puriss. Ph. Brit. A sample chemical from Edward Schunck's work on natural dyes and plant products, 1840s-1900. Prepared by E. Merek, Darmstadt, Germany.

Aloin, a sample chemical

Scientific Instruments & Research

1840s-1900

Model of reversing motion by clutch and bevel wheels, teaching model / J Schröder, Germany, 1868

Model of reversing motion by clutch and bevel whee

Kinematics

1868

Single threaded worm and worm wheel

Kinematics

1868

Cardboard box, containing twelve ampoules of morphine hydrochloride, by E Merck, Darmstadt, Germany, possibly for the French and Turkish, 1900 to 1918

Cardboard box, containing twelve ampoules of morphine hydrochloride

Therapeutics

1900-1918

Model, of Dovetail-Halving ‘Tail’ carpentry joint, on single beech-wood block: stamped with ‘38’, by Polytechnisches Arbeits-Institut J. Schröder Atkiens-Gesselleschaft, Darmstadt, Hesse, Germany, 1868. This was constructed to fit with (1868-31/49) Model, of Dovetail-Halving carpentry joint ‘Socket’, on single beech-wood block: stamped with ‘38’, by Polytechnisches Arbeits-Institut J. Schröder Atkiens-Gesselleschaft, Darmstadt, Hesse, Germany, 1868.

Model, of Dovetail-Halving ‘Tail’ carpentry joint

Building Construction

1868

Model, of Cross-Half Secret Bridle ‘Pin’ carpentry joint, on single beech-wood block: stamped with ‘32’, by Polytechnisches Arbeits-Institut J. Schröder Atkiens-Gesselleschaft, Darmstadt, Hesse, Germany, 1868

Model, of Cross-Half Secret Bridle ‘Pin’ carpentry join

Building Construction

1868

Model, of Under-Squinted Tabled Scarf with ‘V’ ends carpentry joint and centre wedge fitted, joining two beech-wood blocks: stamped with ‘22’, by Polytechnisches Arbeits-Institut J. Schröder Atkiens-Gesselleschaft, Darmstadt, Hesse, Germany, 1868

Model, of Under-Squinted Tabled Scarf with ‘V’ ends carpentry joint

Building Construction

1868

Model, of Scribing, preparation for Square carpentry joint, on single beech-wood block: stamped with ‘1’, by Polytechnisches Arbeits-Institut J. Schröder Atkiens-Gesselleschaft, Darmstadt, Hesse, Germany, 1868

Model, of Scribing, preparation for Square carpentry joint

Building Construction

1868

Model, of Corner Half-Lap, with Secret Dovetail carpentry joint, on single beech-wood block: stamped with ‘29’, by Polytechnisches Arbeits-Institut J. Schröder Atkiens-Gesselleschaft, Darmstadt, Hesse, Germany, 1868. This was constructed to fit (1868-31/66) Model, of Corner Half-Lap, with Secret Dovetail carpentry joint, on single beech-wood block: stamped with ‘29’, by Polytechnisches Arbeits-Institut J. Schröder Atkiens-Gesselleschaft, Darmstadt, Hesse, Germany, 1868.

Model, of Corner Half-Lap, with Secret Dovetail carpentry joint

Building Construction

1868

Model, of Oblique Secret Mortice and Tenon carpentry joint, with round peg fitted, joining two beech-wood blocks: stamped with ‘51’, by Polytechnisches Arbeits-Institut J. Schröder Atkiens-Gesselleschaft, Darmstadt, Hesse, Germany, 1868

Model, of Oblique Secret Mortice and Tenon carpentry joint

Building Construction

1868

Model, of Dovetail and Tabled Scarf carpentry joint, joining two beech-wood blocks: stamped with ‘14’, by Polytechnisches Arbeits-Institut J. Schröder Atkiens-Gesselleschaft, Darmstadt, Hesse, Germany, 1868

Model, of Dovetail and Tabled Scarf carpentry joint

Building Construction

1868

Model, of Secret Mortice and Tenon carpentry joint, with a round peg fitted, joining two beech-wood blocks: both stamped with ‘40’; ‘49’; ‘60’; and ‘65’, by Polytechnisches Arbeits-Institut J. Schröder Atkiens-Gesselleschaft, Darmstadt, Hesse, Germany, 1868

Model, of Secret Mortice and Tenon carpentry joint

Building Construction

1868

Model, of Dovetail Cross-Lap ‘Tail’ carpentry joint, with only one shouldered side, on single beech-wood block: stamped with ‘36’, by Polytechnisches Arbeits-Institut J. Schröder Atkiens-Gesselleschaft, Darmstadt, Hesse, Germany, 1868. This was constructed to fit (1868-31/40) Model, of Dovetail Cross-Lap ‘Socket’ carpentry joint, with only one shouldered side, on single beech-wood block: stamped with ‘36’, by Polytechnisches Arbeits-Institut J. Schröder Atkiens-Gesselleschaft, Darmstadt, Hesse, Germany, 1868.

Model, of Dovetail Cross-Lap ‘Tail’ carpentry joint

Building Construction

1868

Model, of Bevel-Lap carpentry joint, with a central round peg fitted, joining two beech-wood blocks: stamped with ‘28’, by Polytechnisches Arbeits-Institut J. Schröder Atkiens-Gesselleschaft, Darmstadt, Hesse, Germany, 1868

Model, of Bevel-Lap carpentry joint

Building Construction

1868

Model, of Oblique Dovetail Halving carpentry joint, joining two beech-wood blocks: stamped with ‘43’ on block with Dovetail ‘Socket’; and stamped, plus written in ink with ‘43’ on block with Dovetail ‘Tail’, by Polytechnisches Arbeits-Institut J. Schröder Atkiens-Gesselleschaft, Darmstadt, Hesse, Germany, 1868

Model, of Oblique Dovetail Halving carpentry joint

Building Construction

1868

Model, of Cross-Lap, combined with Secret Bridle carpentry joint, joining two beech-wood blocks: stamped and over-laid in ink with ‘57’, by Polytechnisches Arbeits-Institut J. Schröder Atkiens-Gesselleschaft, Darmstadt, Hesse, Germany, 1868

Model, of Cross-Lap, combined with Secret Bridle carpentry joint

Building Construction

1868

Model, of Tabled Scarf carpentry joint, joining two beech-wood blocks: stamped with ‘6’, by Polytechnisches Arbeits-Institut J. Schröder Atkiens-Gesselleschaft, Darmstadt, Hesse, Germany, 1868

Model, of Tabled Scarf carpentry joint

Building Construction

1868

Model, of Oblique Dovetail Halving carpentry joint, with round peg fitted, joining two beech-wood blocks: stamped with ‘53’, by Polytechnisches Arbeits-Institut J. Schröder Atkiens-Gesselleschaft, Darmstadt, Hesse, Germany, 1868

Model, of Oblique Dovetail Halving carpentry joint

Building Construction

1868

Model, of Under-Squinted and Tabled Scarf carpentry joint, with centre wedge fitted, joining two beech-wood blocks: stamped with ‘19’, by Polytechnisches Arbeits-Institut J. Schröder Atkiens-Gesselleschaft, Darmstadt, Hesse, Germany, 1868

Model, of Under-Squinted and Tabled Scarf carpentry joint

Building Construction

1868

Juglandin. A sample chemical from Edward Schunck's work on natural dyes and plant products, 1840s-1900. Prepared by E. Merek, Darmstadt‎, Germany.

Juglandin, a sample chemical

Scientific Instruments & Research

1840s-1900

Model of portion of involute mortise spur wheel, teaching model / J Schröder, Germany, 1868

Model of portion of involute mortise spur wheel, t

Kinematics

1868