5 Matching Results

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Bucket Excavator. (open access)

Bucket Excavator.

Patent for "new and useful Improvement in Bucket Excavators, of which the following is a specification. My invention relates to excavators of that kind in which a bucked is arranged to travel back and forth upon a runway which is lowered into the ground and which is adapted to determine the cross sectional outline of the ditch or excavation" (lines 5-13).
Date: November 30, 1915
Creator: Bettis, William I.
Object Type: Patent
System: The Portal to Texas History
Plate Retaining Device (open access)

Plate Retaining Device

Patent for a license plate holder for automobiles.
Date: April 13, 1915
Creator: Stafford, Frederick
Object Type: Patent
System: The Portal to Texas History
Broom or Brush (open access)

Broom or Brush

Patent for metal brooms or brushes that are "strong and durable, relatively light in weight, and can be inexpensively manufactured" (line 13-15). It is intended for "sweeping snow, mud, slush, and the like" (line 16-17). The patent can also be applied for smaller version of metal brooms or brushes for other purposes.
Date: March 16, 1915
Creator: Airhart, Noah S.
Object Type: Patent
System: The Portal to Texas History
Photographic Copying Apparatus (open access)

Photographic Copying Apparatus

Patent for a simple and effective photographic-copying apparatus capable of making copies of small objects of different sizes. The machine is for general commercial use "that may be successfully operated by persons not particularly skilled in the photographic art" (lines 23-25) including illustrations.
Date: February 2, 1915
Creator: Gregory, Oscar T. & Carkhuff, Norman W.
Object Type: Patent
System: The Portal to Texas History

[Chicago "Pay-Car"]

This photograph portrays an unusual rail consist: Chicago and Western Indiana Railroad's Engine No. 202, a 2-6-2 type heading the "pay-car" in Chicago. In this era the railroad's tracks were being elevated throughout the metropolitan area.
Date: 1915~
Creator: Hastman, Lee
Object Type: Photograph
System: The Portal to Texas History