Robinson and Gresham Injector, Patent Model
date: label: date made
content: 1866
label: patent date
content: 1866-05-29
name: label: inventor
content: Robinson, John
label: inventor
content: Gresham, James
notes: label: Description
content: This model was submitted to the U.S. Patent Office with the application for the patent issued to John Robinson and James Gresham, of Manchester, England, May 29, 1866, no. 55218.
label: Description
content: The feature of this injector is to provide a means of varying the area of the annular space through which the water enters the combining tube for the purpose of properly proportioning the steam and water supplies. The combining tube is made free to slide in the direction of the axis of the tube and is adjusted by a hand wheel at the side of the injector, the shaft of which projects into the injector and carries a small pinion that meshes with a short rack formed on the tube. Packing around the sliding tube is dispensed with by forming the tube in two parts, a fixed part and a sliding part, and proportioning the two parts so that the ends of the sliding part will be “opposite that part of the passing current where it has attained its highest velocity; and by this arrangement the passing liquid has no tendency to escape but rather to draw in air or fluid.”
label: Description
content: Reference:
label: Description
content: This description comes from the 1939 Catalog of the Mechanical Collections of the Division of Engineering United States Museum Bulletin 173 by Frank A. Taylor.
label: Location
content: Currently not on view
place: label: place made
content: Ireland
label: associated place
content: United Kingdom: England, Manchester, Manchester
setName: label: See more items in
content: Work and Industry: Mechanical and Civil Engineering
label: See more items in
content: Bulletin 173
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content: Engineering, Building, and Architecture
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content: Work
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content: Industry & Manufacturing
publisher: label: Related Publication
content: Frank A. Taylor. Catalog of the Mechanical Collections of the Division of Engineering United States National Museum, Bulletin 173
dataSource: label: Data Source
content: National Museum of American History
identifier: label: ID Number
content: ER.309189
label: accession number
content: 89797
label: catalog number
content: 309189
label: patent number
content: 55,218
objectType: label: Object Name
content: feed water injector, model
label: Object Name
content: patent model, injector, feed-water
label: Object Type
content: Patent Model
physicalDescription: label: Physical Description
content: brass (overall material)
label: Measurements
content: overall: 3 3/4 in x 6 in x 15 1/8 in; 9.525 cm x 15.24 cm x 38.4175 cm