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Expansive and Contractive Well-Drill

Description: Patent for improvements for expansive and contractive well drill involving improvements to drill bits.
Date: July 2, 1918
Creator: Carter, Oscar Martin

Explosion Engine Starter

Description: Patent for a new type of automobile starter, able to replace the hand crank. This device will be able to start the automobile without having to turn a crank, It will attach to the crank shaft of the engine and make it much easier to start the automobile.
Date: April 28, 1914
Creator: Miller, Charles R.

Explosion-Hatch for Oil-Tanks.

Description: 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.

Explosive Compound

Description: Patent for an explosive compound made of potassium chlorate, granulated sugar, and alcohol that is not unstable.
Date: February 25, 1913
Creator: Dippel, Charles F.

Explosive-Engine

Description: Patent for an explosive engine that has a reduced risk of backfiring.
Date: September 3, 1912
Creator: Schaffer, William Alexander

Explosive Engine

Description: Patent for a type of internal combustion engine using gunpowder as its fuel.
Date: August 16, 1912
Creator: Conner, Louis C.

Explosive-Engine.

Description: Patent for "an improved engine of the internal combustion type, in which the explosion occurs between two oppositely moving pistons arranged in a cylinder and connected with independent crank shafts." (lines 13-17). The engine also includes a new type of valve gear with mechanically triggered valves and an apparatus for the forced water cooling of the engine.
Date: November 19, 1918
Creator: Cooper, Willis W.

Explosive Projectile.

Description: Patent for an improved, non-ricocheting explosive projectile.
Date: November 4, 1919
Creator: Rohling, Frank J.

Extensible Car-Step.

Description: Patent for an extensible car-step for trolleys that attaches to the ordinary steps of a trolley car.
Date: February 6, 1912
Creator: Uhl, Edgar G.

Extensible Ladder.

Description: Patent for a new and useful Extensible Ladder. The improved Extensible Ladder is comprised of a ladder on each side of the structure, extendable platform, and guard rails.
Date: July 9, 1912
Creator: Putman, Lewis S.

Extensible Neck-Yoke

Description: Patent for a neck yoke which may be lengthened or shortened and has novel means for securing the adjustable sections to prevent slipping, should the main fastening become loose.
Date: May 4, 1915
Creator: Waddell, Gasper Leon

Extensible Trestle.

Description: Patent for an improvement to extensible trestles for masonry and carpentryscaffolding and other uses, including both instructions and illustrations.
Date: January 7, 1890
Creator: Bogusch, Robert J.; Bogusch, Gustav & Zincke, August

Extension-Bed.

Description: Patent for a "longitudinally extensible" (lines 12-13) bed. The extension is stored underneath the main portion of the bed when not in use and allows for the bed to be covered completely with netting to protect against mosquitos. Illustrations included.
Date: August 5, 1913
Creator: Couch, Marvin Leslie

Extension-Brace for Ladders.

Description: Patent for an extension brace for ladders that improves on the inventor's previous patent (No. 416,413). The invention's parts "are positively raised and lowered by means of direct acting mechanism which is so constructed and arranged as to obtain the most beneficial results from a comparatively small application of power, the parts being strong and durable easily operated and readily understood" (lines 20-26).
Date: April 11, 1893
Creator: Crews, Dayton H.

Extension Broom-Handle

Description: Patent for extensions for broom handles and devices of that character. Sections of handles may be joined together for increasing the length of the handle for when the broom is being used to clean walls, ceilings and the like. It can also be used to repair broken handles.
Date: August 15, 1916
Creator: Standefer, Wayne B.

Extension Burial Casket

Description: Patent for improving the design of an extended length casket by breaking the design of the basic casket into two pieces that can be elongated by adding a third piece. Includes a detailed description and illustrations.
Date: unknown
Creator: Frank, August

Extension Car-Step.

Description: Patent for a new and useful extension car step for "use on street cars and railway coaches". (line 13 - 15).
Date: August 8, 1899
Creator: Wrede, Albin C. & Saunders, David R.

Extension Car-Step

Description: Patent for an extension car step. Illustrations included.
Date: August 20, 1907
Creator: Cameron, James H.

Extension-Cot.

Description: Patent for an extension cot, which can be widened through the folding out of extra slats from the top of the cot and folds compactly for transportation.
Date: October 15, 1907
Creator: Whitlock, Henry B.

Extension for Bedsteads

Description: Patent for "an adjustable, folding, and removable attachment that can be adjusted to various heights, one that can be easily attached to and detached from the bedstead, and one that when so detached can be neatly folded into a compact mass,which will occupy very little space" with an adjustable guard (lines 11-19).
Date: July 22, 1890
Creator: Belsher, Julia A.

Extension-Ladder.

Description: Patent for improvements in extension ladder by using two sliding ladder sections, "these two sections can be secured by a windlass and a hook detachably bolted to the upper rung of the upper section." (Lines 38-40, p.3) Illustration is included.
Date: November 3, 1891
Creator: Crews, Dayton H.

Extension-Ladder.

Description: Patent for a new extension ladder, including illustrations.
Date: May 31, 1892
Creator: Crews, Dayton H.

Extension Obstetrical Instrument

Description: Patent for an extension obstetrical instrument used for surgery. Illustrations included.
Date: June 28, 1910
Creator: Goshorn, Leonard
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