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Port-Regulating Valve.

Description: 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: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Panhandle Bank

Description: Business correspondence written on letterhead from the late 19th century. Letterhead contains stylized text of business name and illustration in lithographic print by Wichita Litho. Co. Kansas. Additional text reads: "Capital Stock $50,000."; "Prompt and Careful Attention Given to Collections"; "Exchange Bought and Sold. Correspondence Solicited." Letterhead includes names Geo. C. Mastin, Prest; W. F. Puckett, V. Prest.; J. C. Paul, Cashier; Directors: Geo. C. Martin; J. C. Paul; W. F. Puckett;… more
Date: 1891
Item Type: Refine your search to only Letter
Partner: Texas General Land Office

Carhart & Ross

Description: Business correspondence written on letterhead from the late 19th century. Letterhead includes decorative designs and business name with text reading: "Dealers in Pure Drugs, Medicines, Chemicals, Stationery, Druggists' Sundries, Perfumery, Soaps, Toilet and Fancy Articles, Etc."; "Physicians' Prescriptions Carefully Compounded." Letterhead also contains advertisements for medicines.
Date: 1893
Item Type: Refine your search to only Letter
Partner: Texas General Land Office

The Hansford Land & Cattle Company Limited

Description: Business correspondence written on letterhead from the late 19th century. Letterhead includes cattle illustration, decorative designs, and text reading: "Ranche in Hutchinson and Carson Counties, Texas"; "Ranche in Chaves County, N. M." in lithographic print by Hudson-Kimberly Pub. Co. K. C., M. O. Letterhead contains the name J. M. Coburn, Gen'l Manager.
Date: 1898
Item Type: Refine your search to only Letter
Partner: Texas General Land Office

Draft-Gear.

Description: 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: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Rotary Valve for Steam-Engines.

Description: 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: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Reversible Steam-Engine.

Description: 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: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Header Device.

Description: Patent for a header device intended for the cutting of maize, sorghum, kafir, and other crops so that the plant heads land on a header platform without too much stalk accompanying the head.
Date: July 21, 1914
Creator: Montgomery, Carroll Hinckley
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Driving Mechanism for Tractors

Description: 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: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department
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