UNT Libraries Government Documents Department - 7 Matching Results

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Automatic Slack-Take-Up and Cooling Device.

Patent for new and useful improvements to Automatic Slack-Take-Up and Cooling Devices for the manufacturing of flexible roofing and other similar flexible materials, including illustrations.

Date: May 22, 1917

Creator: Smith, Frederick C.

Item Type: Patent

Brake-Controlling Mechanism for Railway-Cars

Patent for an "air brake controlling mechanism for use in connection with railway cars" (lines 10-12), one feature applies whereby if a wheel becomes derailed the brakes will be applied automatically. Includes illustrations.

Date: February 22, 1916

Creator: Halliburton, George M. & McBurney, Samuel L.

Item Type: Patent

Chain Release for Logging Cars.

Patent for new and useful improvements for a chain release for logging cars, including illustrations.

Date: May 22, 1917

Creator: Dodd, John

Item Type: Patent

Filling-Machine.

Patent for an improved filling machine that automatically transfers predetermined quantities of liquids from one container to multiple other containers such as oils into cans.

Date: May 22, 1917

Creator: Smith, Frederick C.

Item Type: Patent

Hoisting Hook.

Patent for "certain new and useful Improvements in Hoisting-Hooks" (lines 5-6) including specifications and illustrations.

Date: June 22, 1915

Creator: Black, Lee J.

Item Type: Patent

Propelling or Power-Generating Mechanism.

Patent for the constructions of a propelling machine of a vessel, which is provided an electric motor in an engine as a power source for propelling the vessel.

Date: July 22, 1913

Creator: Caldwell, John C.

Item Type: Patent

Rotary Drilling Apparatus

Patent for well drilling apparatus (commonly known as rotaries) with eliminated screws and nuts, and reduced minimum number of parts, and which provides a quickly and easily operable gripping device.

Date: June 22, 1915

Creator: Black, Lee J.

Item Type: Patent

UNT Libraries Government Documents Department - 7 Matching Results

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Automatic Slack-Take-Up and Cooling Device.

Brake-Controlling Mechanism for Railway-Cars

Chain Release for Logging Cars.

Filling-Machine.

Hoisting Hook.

Propelling or Power-Generating Mechanism.

Rotary Drilling Apparatus