1932 Bucyrus-Erie 5O-B Steam Shovel

Patents

1089 Otis? first Steam Shovel

714755 Ore Concentrating and Dredging Apparatus, Adelbert B. Stetson (Bucyrus Co.), Dec 2, 1902, 714,755 - on barge
792273 Ladder and Tumbler Bearing for Elevator-Dredges, Samuel L.G. Knox (Bucyrus Co.), Jun 13, 1905, 384/154 -
802925 Excavator, Walter Ferris (Bucyrus Co.), Oct 24, 1905, 280/764.1 -
853348 Machine Break, Walter Ferris (Bucyrus Co.), May 14, 1907, 188/77R - workes with both directions of wheel rotation
1430298 Rope Thrusting Shovel, Walter Ferris & R.W.M. Bager (Bucyrus Co.), Sep 20, 1922 414/693- first showing of Rope-Thrusting
1516878 Hoisting Apparatus, Edwin J. Armstrong (Erie Steam Shovel Co.), Nov 25, 1924, 37/395 - rails, wheels, tracks?
1519101 Excavating Device, Edwin J. Armstrong (Erie Steam Shovel Co.), Dec 26, 1924, 37/452 ; 279/102 - bucket
1542982 Power Excavating Machine and Method of Actuating same, Edwin J. Armstrong (Erie Steam Shovel Co.), Jun 23, 1925, 414/690 ; 122/408.1; 414/815; 417/280; 417/295 -
1544054 Excavating Machine, Edwin J. Armstrong (Erie Steam Shovel Co.), Jun 30, 1925, 414/690 ; 180/58; 417/362 -

1556574 Excavating Machine and the like, Edwin J. Armstrong (Erie Steam Shovel Co.), Oct 13, 1925, 414/690 -
1560522 Hoist, Edwin J. Armstrong (Erie Steam Shovel Co.), Nov 10, 1925, 477/176 -
1564791 Rope Thrusting Shovel, Roger sherman-Hoar (Bucyrus Co.), Dec 8, 1925 414/693- example of Rackless Rope Thrust
1572870 Clutch, Edwin J. Armstrong (Erie Steam Shovel Co.), Feb 16, 1926, 192/85AA ; 188/264A; 192/113.26; 192/99R - very high power & small
1602562 Power Excavator, Edwin J. Armstrong (Erie Steam Shovel Co.), Oct 12, 1926, 212/173 -
1643598 Traveling Track Sprocket, Edwin J. Armstrong (Erie Steam Shovel Co.), Sep 27, 1927, 305/199 ; 305/115; 474/156; 474/901 -
1650415 Method of and Mechanism for Controlling Variable-speed engines, Edwin J Armstrong (Erie Steam Shovel Co.), Nov 22, 1927, 137/57 -
1773252 Excavating Machinery, William M. Eager (Bucyrus-Erie Co.), Aug 19, 1930, 180/6.7 ; 180/6.58; 180/9.62; 192/49 -compact revolving power shovel

Calls:
1485945 Excavator supporting Frame and Traction Means Therefor, S.R.W.M. Bager (Bucyrus Co.),, Mar 4 1924, 212/253 -

1773253 Creeping Traction Mounting, William M. Eager (Bucyrus-Erie Co.), Aug 19, 1930, 180/6.7 ; 172/292; 192/49; 74/665S -
1717591 Fluid-Actuated Engine, Clarence B. Weston (Bucyrus-Erie Co.), Jun 18, 1929, 91/246 ; 91/188; 91/196; 91/331; 91/332; 91/448 - remote reversing of engine
1793438 Hydraulically Operated Shovel, Walter Ferris (Bucyrus Co.), Feb 17, 1931, 414/690
1922285 Power Excavator, Walter Ferris (Bucyrus-Erie Co.), Aug 15, 1933, 414/690 - Hydraulic

Calls:
1793438 Hydraulically Operated Shovel, Walter Ferris (Bucyrus Co.), Feb 17, 1931, 414/690
1798198 Pump, Walter Ferris & John P. Ferris

1954801 Brake, Trevor Davidson (Bucyrus-Erie Co.), Apr 17, 1934, 188/77R ; 188/152; 188/196A; 188/2R; 188/355; 74/516- slack and adjustment control of large diameter band barke
2543765 Winch for Convertible Draglines, Trevor O. Davidson, Bruno L. Lonngren (Bucyrus-Erie Co.), Mar 6 1951, 254/297 ; 254/300; 254/311; 414/690; 414/693 -

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