Image
Category
Collection
Maker
Object type
Place
Material
Date
True-course finder

True-course finder

1876

Induction coil for use with X-ray apparatus

Induction coil for use with X-ray apparatus

1896-1910

Alfred Apps, London, 10-inch induction coil

Alfred Apps, London, 10-inch induction coil

1890

Compass-clinometer, Bagot's Patent (No 2227 of 1876) by Apps

Compass-clinometer, Bagot's Patent (No 2227 of 1876) by Apps

Early form of mercury interrupter

Early form of mercury interrupter

1880

Glass cracked by spark from the giant Spottiswoode induction coil

Glass cracked by spark from the giant Spottiswoode induction coil

Clinical Mercury Thermometers, 1877-1890

Clinical Mercury Thermometers, 1877-1890

1877-1890

Early electro-magnetic engine by Alfred Apps, London

Early electro-magnetic engine by Alfred Apps, London

Improved Hawthorn slide rule

Improved Hawthorn slide rule

Circular slide rule, c 1870.

Circular slide rule, c 1870.

1870-1875

Mercury maximum thermometer and alcohol minimum thermometer

Mercury maximum thermometer and alcohol minimum thermometer

1866-1896

Thermopile, on brass stand

Thermopile, on brass stand

1866-1896

App's clockwork interrupter

App's clockwork interrupter

1890

Electrical register for anemometer

Electrical register for anemometer

1872

Mercury in glass thermometer by Alfred Apps. London

Mercury in glass thermometer by Alfred Apps. London

1900

Early hand break

Early hand break

1880

Universal shunt

Universal shunt

1866-1896

Routledge engineer's rule by Alfred Apps, London

Routledge engineer's rule by Alfred Apps, London

Clinical thermometer in wooden case

Clinical thermometer in wooden case

Chest microscope

Chest microscope

1881-1900

Circular slide rule

Circular slide rule

Case for circular slide rule

Case for circular slide rule

Case for patent section line ruler

Case for patent section line ruler

Large interrupter by Alfred Apps, London

Large interrupter by Alfred Apps, London

Crank Handle for Double Barrelled Air Pump

Crank Handle for Double Barrelled Air Pump

1866-1911

Cylindrical induction coil of vulcanite with multi-core mounted on wooden base with trembler

Cylindrical induction coil of vulcanite with multi-core mounted on wooden base with trembler

1890-1900

Large induction coil made by Alfred Apps

Large induction coil made by Alfred Apps

1876

Demonstration Wheatstone bridge

Demonstration Wheatstone bridge

1866-1896

Patent section line ruler

Patent section line ruler

Bagot's patent thermometer,1880

Bagot's patent thermometer,1880

1880

Induction Coil System made by Alfred Apps, for Milliam Spottiswoode, F.R.S., consisting of: A large induction coil, a coil in a glass top cabinet, two black pillars, two glass cabinets and seven components

Components for Spottiswoode Induction Coil

1876

Henley's universal discharger, by Alfred Apps, 433 Strand, London

Henley's universal discharger

Large induction coil by Alfred Apps, London, used by Sir William Crookes, with additional primary coil

Large induction coil by Alfred Apps

1879

Patent section line ruler, stamped "Apps" and with the trade mark of E.O. Richter and case.

Patent section line ruler, stamped "Apps", with trademark and case

Large induction coil with accessories.

Large induction coil with accessories.

1902

Large induction coil by Alfred Apps, London, used by Sir William Crookes

Large induction coil by Alfred Apps

1879

Electromagnetic Engine by Alfred Apps, London.

Electromagnetic Engine by Alfred Apps, London.

Induction coil with hammer-break interrupter, made by Alfred Apps, patent no.545, 433 Strand, London, England, 1896-1897.

Induction coil with hammer-break interrupter

1896-1897

Additional Primary coil for large induction coil by Alfred Apps, London, used by Sir William Crookes

Primary coil for large induction coil by Alfred Apps

1879

Polished wooden base on castors, for large induction coil

Polished wooden base on castors

1902

Two ebonite covered pillars for large induction coil

Two ebonite covered pillars

1902

Seven components for Spottiswoode Induction Coil

Seven components for Spottiswoode Induction Coil

1876

Horizontal glass cabinet containing controls for Spottiswoode Induction Coil

Glass cabinet containing controls

1876

Coil in cabinet with glass top and support base with castors and two black pillers with curved tops for Spottiswoode Induction Coil

Coil in cabinet with wheeled stand

1876

Case of small accessories for use with large induction coil

Case of small accessories for use with large induction coil

1902

Capacitor for use with large induction coil

Capacitor for use with large induction coil

1902

Capacitor for use with large induction coil

Capacitor for use with large induction coil

1902

Box of ebonite covering fragments from pillars of large induction coil

Fragments of ebonite covering from pillars of large induction coil

1902

Hammer-break interrupter and Ruhmkorff commutator for use with large induction coil

Hammer-break interrupter and Ruhmkorff commutator

Vertical Glass Cabinet containing glass tube and control for Spottiswoode Induction Coil

Glass Cabinet containing glass tube and controls

1876