24 Matching Results

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Adjustable End Die. (open access)

Adjustable End Die.

Patent for improvements to adjustable end dies. These improvements allow convenient rethreading of bolts while it is engaged with an object.
Date: February 8, 1921
Creator: Wright, John G.
System: The Portal to Texas History
Burglar-Alarm (open access)

Burglar-Alarm

Patent for improvements in burglar alarms, with horns and sirens.
Date: March 8, 1921
Creator: Sefcik, Francis
System: The Portal to Texas History
Blackboard. (open access)

Blackboard.

Patent for a rotating blackboard that can be covered when not in use, as well as adjusted to different heights and locked into place so the writer can utilize every available space of the blackboard. The inventor designed the blackboard "for use in schools and brokerage offices."
Date: March 8, 1921
Creator: Grothaus, Julia
System: The Portal to Texas History
Combination Valve-Cap and Tire-Deflator. (open access)

Combination Valve-Cap and Tire-Deflator.

Patent for a device which serves both as a cap for a tire valve and a tool for letting air out of said tire valve.
Date: March 8, 1921
Creator: McComb, William P.
System: The Portal to Texas History
Attachment for Gun-Slings (open access)

Attachment for Gun-Slings

Patent for an attachment for gun slings that can be used on army rifles or other guns and provides the means for the sling to be held tight against the arm for steady aim.
Date: November 8, 1921
Creator: {Grierson, Benjamin Henry}
System: The Portal to Texas History
Blow-Out Boot. (open access)

Blow-Out Boot.

Patent for a blow-out boot (as it pertains to tire repair). The defining feature of this invention is that the edges are flexible and overlapping, containing slots and loops that correspond to each other to facilitate the joining of the edges.
Date: November 8, 1921
Creator: Williams, George G.
System: The Portal to Texas History
Shock-Absorber. (open access)

Shock-Absorber.

Patent for an improved design of shock absorbers that gives vehicles a smoother ride.
Date: March 8, 1921
Creator: Swindowsky, Walter
System: The Portal to Texas History
Explosion-Hatch for Oil-Tanks. (open access)

Explosion-Hatch for Oil-Tanks.

Patent for useful and new improvements in explosion hatches for oil tanks. This product specifically provides a hatch on the oil tank which will permit the escape of combustion gasses through the hatchway. It does so without damage to the hatch, case, or the tank. This provides additional safety and security for the operator.
Date: November 8, 1921
Creator: Hull, Burton E.
System: The Portal to Texas History
Package-Binder and Hooks Therefor and Record-Check (open access)

Package-Binder and Hooks Therefor and Record-Check

Patent for a simple, effective, and relatively economical way to secure items when shipped or handled. The patent includes strap binders, hooks and straps therefor, and a record check.
Date: November 8, 1921
Creator: Glisson, Amos A.
System: The Portal to Texas History
Building Construction. (open access)

Building Construction.

Patent for a building construction method. After completion of typical foundation and framework construction, "interlocking slabs or tiles are secured to the framework to form an outer covering or sheathing for the building." The interlocking method requires no cementing of material yet still allows water to be shed. "Provision is also made for fastening slabs or tiles to the framework in a manner permitting rapid assembly of parts" which reduces building time. The invention can be applied to doors and windows as demonstrated in the illustrations.
Date: November 8, 1921
Creator: Walker, Isham P.
System: The Portal to Texas History
Stub-Axle Adjustment Device. (open access)

Stub-Axle Adjustment Device.

Patent for useful improvements for Stub-Axle Adjustment Devices. This device will allow for the stub-axle to be efficiently adjusted in both a vertical plane and a transverse plane with respect to the machine.
Date: November 8, 1921
Creator: Kopplin, Otto E.
System: The Portal to Texas History
Well-Drill Wrench. (open access)

Well-Drill Wrench.

Patent for a well drill wrench that is easily adjustable for different sized drill chucks. Its designs makes rotating the wrench smoother and less likely to slip off of drill chucks.
Date: November 8, 1921
Creator: Ellinger, William H.
System: The Portal to Texas History
Polished-Rod Clamp. (open access)

Polished-Rod Clamp.

Patent for improvements in Polished-Rod Clamps that "quickly and easily attached to a rod without the use of tools" (lines 56-57) and "be easily operated at a distance from a pump" (lines 59-60).
Date: November 8, 1921
Creator: Weister, Edward P.
System: The Portal to Texas History
Electrical Tank-Gage. (open access)

Electrical Tank-Gage.

Patent for tank gages that use an electrical indicator to show fluid levels and waste that settles at the bottom of the tank.
Date: November 8, 1921
Creator: Bartlett, Ernest C. & Allison, Joseph, E.
System: The Portal to Texas History
Cotton Picking Apparatus. (open access)

Cotton Picking Apparatus.

Patent for cotton-picking apparatus. This apparatus supports complete removal of the cotton from plant without foreign objects or harm to plant.
Date: November 8, 1921
Creator: Alvin, Alleyne D.
System: The Portal to Texas History
Windmill. (open access)

Windmill.

Patent for an improved windmill which allows for the conversion of "a rotating motion into a reciprocatory motion" (line 15-16) which allows the windmill to be "manufactured and sold at a comparatively low rate" (line 41-43).
Date: February 8, 1921
Creator: Cryer, Henry M.
System: The Portal to Texas History
Wire-Stretcher. (open access)

Wire-Stretcher.

Patent for an improvement to wire stretchers and splicers, to more practically "facilitate the stretching and splicing of fence wire or the like" (lines 12-13), including illustrations.
Date: November 8, 1921
Creator: Sanderson, Auther L.
System: The Portal to Texas History
Boat. (open access)

Boat.

Patent for boat with improvements towards easy movements by using a propeller and rudder. The boat is designed with the user to use their feet to manually move the boat. The boat is designed for hunting or fishing while keeping the hands free.
Date: March 8, 1921
Creator: Greer, John C.
System: The Portal to Texas History
Wheel Tread. (open access)

Wheel Tread.

Patent for wheel treads designed for heavy vehicles. The metal shoes on the tread are to help enable the vehicle to go over both hard and soft surfaces.
Date: February 8, 1921
Creator: Ingram, Joseph D.
System: The Portal to Texas History
Spike-Extractor (open access)

Spike-Extractor

Patent for a spike extractor that consists of a gripper and spring legs with inturned jaws.
Date: March 8, 1921
Creator: Hector, Olinthus H.
System: The Portal to Texas History
Oil-Burner. (open access)

Oil-Burner.

Patent for an oil-burner used to provide a structure of low cost material that allows thorough heating of the oil to accommodate the conversion to gas and combustion for flame at the orifice.
Date: March 8, 1921
Creator: Daily, William T.
System: The Portal to Texas History
Motor- Driven Tire- Pump (open access)

Motor- Driven Tire- Pump

Patent for Motor-Driven Tire Pump. Motor tire pump that helps inflate tires.
Date: February 8, 1921
Creator: Guthrey Gordon N.
System: The Portal to Texas History
Trolley Wheel (open access)

Trolley Wheel

Patent for an improved trolley wheel that has an intermediate trolley wire groove and spiral replacing grooves arranged on opposite sides of the intermediate groove so as to automatically return the trolley wire to the intermediate groove.
Date: February 8, 1921
Creator: Horton, Walter F. & Larson, Raymond G.
System: The Portal to Texas History
Casing-Elevator. (open access)

Casing-Elevator.

Patent for a casing elevator used to remove casings of various diameters from wells. The main specialty of this invention is the use of hinged sections containing pivoted jaws to clamp around the casings.
Date: November 8, 1921
Creator: Boyter, Arthur J.
System: The Portal to Texas History