Steam Engine Page: 5 of 5
[3], 2 p. : ill. ; 23 cm.View a full description of this patent.
Extracted Text
The following text was automatically extracted from the image on this page using optical character recognition software:
921,400
within the cylinder when the abutment is at
the limit of its outward movement. The
abutment 25 is provided with a stem 27 pro-
jecting to the exterior of the chamber 26.
5 The outer end of this stem is suitably piv-
oted to a rod 28. The lower end of this rod
28 is fixed between two levers 29 pivoted to
the engine bed 1. Each of these levers 29,
intermediate its length is provided with an
=G outward segmental bend 30 to embrace a
trip pulley 31 fixed to the shaft 4. This
pulley 31 is provided with an aiular groove
32 having an abrupt turn 33 at opposite
points of the pulley. Traveling within this
15 groove 32 are the pins 34. By this arrange-
ment at every half rotation of the shaft 4
or the pulley 31, the sliding abutment 25 will
be withdrawn from the cylinder 2 to permit
the passage of the wings 7 of the pulley 6.
20 The relation of the offsets or turns 33 in
the pulley 31 with the eccentric 21, is such
that when the abutment 25 is withdrawn the
sliding valve 16 will close the steam supply
port in the casting 12 thereby relieving thewings 7 of any steam pressure until the abut- 25
meant has returned. As the abutment re-
turns the valve 16 is returned to its proper
position.
The cylinder is provided at a point opposite
the steam chest 11, with an exhaust port 35. 30
We claim-
In an engine of the type set forth, the
combination with a slidable reversing valve,
its stem and the engine shaft, of a reversing
valve operating mechanism, comprising an 35
eccentric carried by said shaft an eccentric
strap surrounding said eccentric, an arm
carried by said eccentric strap, a lever piv-
oted to said arm and to said stem, a pivoted
hand lever and a link pivoted to said hand 40
lever and to said first named lever.
In. testimony whereof, we affix our signa-
tures, in presence of two witnesses.
JOHN A. HILL.
MELVIN W. HILL.
Witnesses:
ALLEN IAILE,
G. M. SHOEMAKER.
Search Inside
This patent can be searched. Note: Results may vary based on the legibility of text within the document.
Tools / Downloads
Get a copy of this page or view the extracted text.
Citing and Sharing
Basic information for referencing this web page. We also provide extended guidance on usage rights, references, copying or embedding.
Reference the current page of this Patent.
Hill, John A. & Hill, Melvin W. Steam Engine, patent, May 11, 1909; [Washington D.C.]. (https://texashistory.unt.edu/ark:/67531/metapth510523/m1/5/: accessed July 18, 2024), University of North Texas Libraries, The Portal to Texas History, https://texashistory.unt.edu.; crediting UNT Libraries Government Documents Department.