42 Matching Results

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Nut Locking Device. (open access)

Nut Locking Device.

Patent for a new and improved nut-locking device to securely lock fish plates to rail ends.
Date: April 6, 1920
Creator: Hales, Wiley J.
System: The Portal to Texas History
Means for Detachably Securing Chairs to Floors. (open access)

Means for Detachably Securing Chairs to Floors.

Patent for a new device that secures chairs to the floor and is easily detachable so the chairs can be moved when necessary.
Date: April 6, 1920
Creator: Lambert, Joseph A.
System: The Portal to Texas History
Pipe-Wrench. (open access)

Pipe-Wrench.

Patent for a pipe wrench that can be "operated in either direction" (line 18) to screw and unscrew a pipe with an easy application and secure grip.
Date: April 27, 1920
Creator: Nixon, Jeddy D.
System: The Portal to Texas History
Percolator. (open access)

Percolator.

Patent for a percolator for coffee or tea that is "reliable and efficient in its operation, readily and easily adjusted to fit the various sizes of pots and also inexpensive in manufacture." (lines 44-47)
Date: April 20, 1920
Creator: Rose, Isabell M.
System: The Portal to Texas History
Electric Light Switch. (open access)

Electric Light Switch.

Patent for an improved electric switch that is used to energize electric lights for various purposes and for use in connection with a signaling system. This switch will permit the energization of any one of the lights separately or all lights simultaneously.
Date: April 6, 1920
Creator: Riggs, Fletcher S.
System: The Portal to Texas History
Shock-Absorber and Axle-Reinforcement. (open access)

Shock-Absorber and Axle-Reinforcement.

Patent for a shock absorber and axle reinforcer designed to protect the axle and spring in motor vehicles with a front transverse spring while driving over rough road.
Date: April 20, 1920
Creator: Teller, John D.
System: The Portal to Texas History
Cotton-Chopping Machine (open access)

Cotton-Chopping Machine

Patent for a cotton "wheeled cultivator" (line 14-15) attachment which allows users to make adjustments to the cultivator blades, including illustrations.
Date: April 13, 1920
Creator: Sims, James G.
System: The Portal to Texas History
Device for Taking Samples from Wells. (open access)

Device for Taking Samples from Wells.

Patent for the development of a drill bit "specially designed for the purpose of obtaining samples of the formation through which the drill bit is passing" (lines 14-16).
Date: April 6, 1920
Creator: Dodds, Redus D.
System: The Portal to Texas History
Device for Teaching Music (open access)

Device for Teaching Music

Patent for a music education device aimed toward children and basic music building blocks. It is designed to teach the positions of piano keyboard notes through the use of differently dressed and named puppets. These puppets can be adjusted to also introduce basic musical concepts like rests, rhythm, and time.
Date: April 20, 1920
Creator: Maxwell, Annie L.
System: The Portal to Texas History
Demountable Rim. (open access)

Demountable Rim.

Patent for improved demountable rims for automobiles that are easy to mount and detach as well as cheaper and easier to manufacture.
Date: April 27, 1920
Creator: McPherson, Arthur Edison
System: The Portal to Texas History
Cylinder-Grinding Attachment For Lathes (open access)

Cylinder-Grinding Attachment For Lathes

Patent for an improved attachment for the lathe to grind cylinders of different sizes
Date: April 6, 1920
Creator: Snell, William T.
System: The Portal to Texas History
Valve-Lifter (open access)

Valve-Lifter

Patent for an improved device that can be applied to a valve spring plate without losing grip.
Date: April 8, 1920
Creator: Chaney, Robert
System: The Portal to Texas History
Adjustable Footrest. (open access)

Adjustable Footrest.

Patent for an improved, adjustable foot rest that allows for more adjustments and range of motion "to any desired position for the comfort of the user" (lines 13-14), and is secured to the floor.
Date: April 20, 1920
Creator: Kingsford, Walter E.
System: The Portal to Texas History
Combined Adding and Listing Machine. (open access)

Combined Adding and Listing Machine.

Patent for new improvements on combined adding and listing machines simplifying and economizing construction and facilitating, "rapidity of operation" (lines14-15). Improvements include: "causing the keys to act directly as stops for the adding wheel section; to provide novel accumulator mechanism...[with] a novel actuator; to provide a novel construction or sector-control bar; to provide a novel key-bar for operating...; to provide novel means for restoring the accumulator to normal; to provide stop mechanism to permit the carryovers of the accumulator...;to provide novel means for restoring the sectors to normal; to provide improved means for holding the accumulator in operative or inoperative position...; to provide novel means for connecting the accumulator sectors with the type sectors; 5o provide novel means for connecting the accumulator sectors with the type sectors; to provide novel means for actuating the hammer and paper feed mechanism; to provide improved general-error key mechanism; to provide an improved construction and operation of key-bar and sector-control bar; to permit of the operation of elimination" (lines 15-46).
Date: April 20, 1920
Creator: McCaleb, Walter F.
System: The Portal to Texas History
Bottle-Filling Device. (open access)

Bottle-Filling Device.

Patent for filling bottles with "two liquids and introducing them into the bottle at the same time under pressure" (lines 17-18), specifically for "carbonated beverages" (lines 12-13).
Date: April 6, 1920
Creator: Dannelley, Dillon C.
System: The Portal to Texas History
Book-Holding Device (open access)

Book-Holding Device

Patent for a book-holding device that will keep books open by holding back turned pages, with illustrations.
Date: April 20, 1920
Creator: Barry, David Redmond
System: The Portal to Texas History
Automobile-Windlass (open access)

Automobile-Windlass

Patent for improved windlass for an automobile that attaches to both rear wheels to prevent idling
Date: April 20, 1920
Creator: Davis, Marion A.
System: The Portal to Texas History
Bottle-Holder. (open access)

Bottle-Holder.

Patent for an ink bottle holder that allows for sturdy tilting and prevents ink from spilling.
Date: April 27, 1920
Creator: Smith, Edwin Ruthven
System: The Portal to Texas History