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in place name: "United States - Texas - Carson County - Panhandle"

Rotary Churn.

Patent for a manual rotary churn with two dasher blades, including instructions and illustrations.

Date: March 12, 1912

Creator: Martin, Harry T.

Item Type: Patent

Partner: UNT Libraries Government Documents Department

Traction-Engine Frame and Engineering Device.

Patent for a frame and steering device for traction engines allowing easier movement and control of a traction device because the engine can be steered through one of the traction wheels.

Date: May 30, 1911

Creator: Slimp, William L.

Item Type: Patent

Partner: UNT Libraries Government Documents Department

Patent for "reversible reciprocating steam engines, its objects being to simplify the mechanism for reversing the valve, and to provide a valve in which the area of steam pressure upon its face is reduced to the minimum." (Lines 14-19) Includes instructions and illustrations.

Date: July 24, 1894

Creator: Lester, Frank

Item Type: Patent

Partner: UNT Libraries Government Documents Department

Rotary Valve for Steam-Engines.

Patent for a rotary valve for steam-engines that has a simplified valve and less pressure on the valve. It has a rocking valve that is "operating within a steam chest independent of the cylinder and connected therewith by pipes entering through the cylinder ends, a cam movement being provided for rocking the valve" (lines 21-25).

Date: September 18, 1894

Creator: Lester, Frank

Item Type: Patent

Partner: UNT Libraries Government Documents Department

Port-Regulating Valve.

Patent for a port-regulating valve. It is meant for use in steam-engines and regulates the steam in engines that the inventor had previously patented (No. 523,360). "The invention consists of a slide-valve for covering each port leading from the steam-chest to the rock-valve, with means for operating such slide-valves from the shaft controlling the rock-valve, and a link movement for adjusting the throw of the slide-valves and which is under the control of the engineer" (lines 21-28).

Date: August 27, 1895

Creator: Lester, Frank

Item Type: Patent

Partner: UNT Libraries Government Documents Department

Driving Mechanism for Tractors

Patent for an invention relating to the engines of tractors that provides "improved transmission gearing for controlling the movements of the machine." (lines 17-18)

Date: August 19, 1913

Creator: Ingram, Joseph D.

Item Type: Patent

Partner: UNT Libraries Government Documents Department

Draft-Gear.

Patent for improvements in draft-gear by using a drive wheel and an arcuate guide to maintain the line of draft from the load to the center of the main or drive axle irrespective of the position of the load relative to the engine (lines 17-20). Illustration is included.

Date: July 8, 1913

Creator: Ingram, Joseph D.

Item Type: Patent

Partner: UNT Libraries Government Documents Department

[Young Students and Their Teacher]

Photograph of a group of students and their teacher. The students are positioned into 3 rows outside the school building. There is handwritten text on the back listing the names of all the students.

Date: unknown

Item Type: Photograph