Gilles Gas Engine, Patent Model

Description:

This model was submitted to the U.S. Patent Office with the application for the patent issued to Friedrich W. Gilles, of Kalk, Germany, July 11, 1876, no. 179782.

The engine represented by the model is a 1-cylinder vertical gas engine employing two pistons, a working piston (the lower one) and a loose piston (the upper one). The loose piston was intended to fly to the top of the cylinder where it would be caught and held, producing within the cylinder a reduced pressure, which would cause the work piston to return under the pressure of the atmosphere and thereby perform work on the return stroke as well as the explosion stroke. Provision was made to cushion the free piston at the top of its stroke for the purpose of quiet running. The combustion mixture was drawn in and ignited on the explosion stroke without compression.

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.

Date Made: 1876Patent Date: 1876-07-11

Inventor: Gilles, Friedrich W.

Location: Currently not on view

Place Made: GermanyAssociated Place: Germany: North Rhine-Westphalia, Kalk

See more items in: Work and Industry: Mechanical and Civil Engineering, Bulletin 173, Engineering, Building, and Architecture, Work, Industry & Manufacturing

Exhibition:

Exhibition Location:

Related Publication: Frank A. Taylor. Catalog of the Mechanical Collections of the Division of Engineering United States National Museum, Bulletin 173

Data Source: National Museum of American History

Id Number: MC.311183Catalog Number: 311183Accession Number: 89797Patent Number: 179,782

Object Name: engine, steam, modelpatent model, engine, gasObject Type: Patent Model

Physical Description: metal (overall material)wood (base material)Measurements: overall: 12 3/4 in x 4 5/8 in x 4 1/4 in; 32.385 cm x 11.7475 cm x 10.795 cm

Guid: http://n2t.net/ark:/65665/ng49ca746a6-79b8-704b-e053-15f76fa0b4fa

Record Id: nmah_847085

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