Combined Inkstand and Pen Rack. (open access)

Combined Inkstand and Pen Rack.

Patent for a new and improved inkstand and pen rack. This design "is to provide one or more inkstands with pen-holding attachments which will be adapted to close the lid of the inkstand when the pen is in position on the rack-frame and permit the lid to open by gravity of attached parts when the pen is removed for use" (lines 8-14).
Date: August 12, 1890
Creator: Lindsay, George Washington
Object Type: Patent
System: The Portal to Texas History
Steam Boiler Cleaner. (open access)

Steam Boiler Cleaner.

Patent for a new and improved steam-boiler cleaner. This design "has relation to means for cleaning the mud or foam, or both, from steam-boilers; and it consists in the construction and novel arrangement of devices" (lines 16-19).
Date: February 12, 1884
Creator: Foster, James Harvey.
Object Type: Patent
System: The Portal to Texas History
Quilting Attachment for Sewing-Machines. (open access)

Quilting Attachment for Sewing-Machines.

Patent for a support for quilting frames that can be attached to a sewing machine. Includes instructions and illustrations.
Date: October 12, 1897
Creator: Obuch, William
Object Type: Patent
System: The Portal to Texas History
Permutation Lock. (open access)

Permutation Lock.

Patent for a new and improved combination lock. This design "consists in the construction and novel arrangement of the slotted bolt, follower, and follower-shaft, the elongated bolt-stop pivoted in the slot of the bolt, the radially-slotted disks having concentric stems on the follower-shaft, and the lettered or figured and graduated stem-caps engaging the respective stems by means of circular series of teeth" (lines 20-27).
Date: December 12, 1882
Creator: Saxon, James W.
Object Type: Patent
System: The Portal to Texas History

P.L. 94-171 County Block Map (2010 Census): Denton County, Block 4

Parent map for Denton County, Texas showing the area of one geographic block for which the U.S. Census Bureau collected data. The plotted map scale is 1:7,500.
Date: January 12, 2011
Creator: United States. Bureau of the Census.
Object Type: Map
System: The Portal to Texas History

P.L. 94-171 County Block Map (2010 Census): Denton County, Index

Index map for Denton County, Texas showing the distribution of census blocks and smaller inset areas for which the U.S. Census Bureau collected data. The plotted map scale is 1:76,763.
Date: January 12, 2011
Creator: United States. Bureau of the Census.
Object Type: Map
System: The Portal to Texas History

P.L. 94-171 County Block Map (2010 Census): Denton County, Block 7

Parent map for Denton County, Texas showing the area of one geographic block for which the U.S. Census Bureau collected data. The plotted map scale is 1:7,500.
Date: January 12, 2011
Creator: United States. Bureau of the Census.
Object Type: Map
System: The Portal to Texas History

P.L. 94-171 County Block Map (2010 Census): Denton County, Block 6

Parent map for Denton County, Texas showing the area of one geographic block for which the U.S. Census Bureau collected data. The plotted map scale is 1:7,500.
Date: January 12, 2011
Creator: United States. Bureau of the Census.
Object Type: Map
System: The Portal to Texas History

P.L. 94-171 County Block Map (2010 Census): Denton County, Block 5

Parent map for Denton County, Texas showing the area of one geographic block for which the U.S. Census Bureau collected data. The plotted map scale is 1:7,500.
Date: January 12, 2011
Creator: United States. Bureau of the Census.
Object Type: Map
System: The Portal to Texas History

P.L. 94-171 County Block Map (2010 Census): Denton County, Block 3

Parent map for Denton County, Texas showing the area of one geographic block for which the U.S. Census Bureau collected data. The plotted map scale is 1:7,500.
Date: January 12, 2011
Creator: United States. Bureau of the Census.
Object Type: Map
System: The Portal to Texas History

P.L. 94-171 County Block Map (2010 Census): Denton County, Block 1

Parent map for Denton County, Texas showing the area of one geographic block for which the U.S. Census Bureau collected data. The plotted map scale is 1:7,500.
Date: January 12, 2011
Creator: United States. Bureau of the Census.
Object Type: Map
System: The Portal to Texas History

P.L. 94-171 County Block Map (2010 Census): Denton County, Block 2

Parent map for Denton County, Texas showing the area of one geographic block for which the U.S. Census Bureau collected data. The plotted map scale is 1:7,500.
Date: January 12, 2011
Creator: United States. Bureau of the Census.
Object Type: Map
System: The Portal to Texas History
Train Signaling System (open access)

Train Signaling System

Patent for trains that use an alarm system that alerts the engineer if there is an issue with the automatic air-brakes in any of the train cars. This alarm system allows for users in any car to alert the engineer and does not diminish the effectiveness of the air brake system.
Date: June 12, 1906
Creator: Gerard, Joseph
Object Type: Patent
System: The Portal to Texas History