Robinson and Gresham Injector, Patent Model
Robinson and Gresham Injector, Patent Model
- Description
- 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.
- 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.”
- Reference:
- 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.
- Location
- Currently not on view
- Object Name
- feed water injector, model
- patent model, injector, feed-water
- Object Type
- Patent Model
- date made
- 1866
- patent date
- 1866-05-29
- inventor
- Robinson, John
- Gresham, James
- place made
- Ireland
- associated place
- United Kingdom: England, Manchester, Manchester
- Measurements
- overall: 3 3/4 in x 6 in x 15 1/8 in; 9.525 cm x 15.24 cm x 38.4175 cm
- ID Number
- ER.309189
- accession number
- 89797
- catalog number
- 309189
- patent number
- 55,218
- See more items in
- Work and Industry: Mechanical and Civil Engineering
- Work
- Industry & Manufacturing
- Bulletin 173
- Engineering, Building, and Architecture
- Data Source
- National Museum of American History
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