UNT Libraries Government Documents Department - 3,212 Matching Results

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Automatic Blast-Generator.

Description: Patent for "a new and improved automatic blast-generator designed for the use of jewelers, dentists, and other persons, and arranged to produce a steady and uniform blast and to permit of increasing or decreasing the force of the blast as required, according to the nature of the work on hand." (Lines 9-16) Includes instructions and illustrations.
Date: October 12, 1897
Creator: Sidwell, Aaron M., Jr.
Item Type: Refine your search to only Patent

Automatic Break

Description: Patent for an automatic break that can be applied automatically when going down any kind of hill and would dissengage whenever the vehicle drives on a flat road or up a hill.
Date: November 29, 1892
Creator: McKee, James A. & Hatchett, Pink C.
Item Type: Refine your search to only Patent

Automatic Car-Switching System.

Description: Patent for "a system of switching where the cars of a train are pushed up an incline and placed successively on an elevated annular revolving platform, by which they are automatically distributed to their respective receiving-tracks" (lines 9-14).
Date: March 24, 1896
Creator: Lelardoux, Pierre
Item Type: Refine your search to only Patent

Automatic Cotton or Corn Planter.

Description: Patent for an automatic cotton or corn planter that is simple and inexpensive, and is a line of planters that sows in parallel rows that does not need to be guided by hand. The devices are independently adjustable.
Date: March 13, 1894
Creator: Nehrmeyer, Henry
Item Type: Refine your search to only Patent

Automatic Cotton-Weighing Scale.

Description: Patent for an automatic cotton-weighing scale that is designed "to be used in connection with pneumatic conveyers, and it is of such construction that it will automatically weigh any amount that its scale may be set at, cut off the supply from the conveyer, empty itself, and immediately reset itself, the resetting of the machine opening the supply-valve from the conveyer, so that the weighing operation can be repeated" (lines 13-21).
Date: July 9, 1895
Creator: Schulze, Andrew
Item Type: Refine your search to only Patent

Automatic Danger-Signal for Railroads.

Description: Patent for a "device for indicating at railroad crossings and other points, the approach or departure of trains within any given distance of such crossing or with relation to any point where persons might come into dangerous proximity to the train if they were left unadvised by some such signal as this." (Lines 19-26) Includes instructions and illustrations.
Date: February 26, 1895
Creator: Lee, Horatio Grooms; White, John P.; Ball, Thomas & White, James L.
Item Type: Refine your search to only Patent

Automatic Drop-Lid for Bins or Boxes.

Description: Patent for "boxes or bins for store counters and shelves; and it has for its object to provide certain improvements in the lid devices for boxes or bins, so as to avoid the many objections to hinged lids, which interfere with free access to the interior of the box or bin when the same is used under the counter or on shelves" (lines 8-15).
Date: August 1, 1893
Creator: Dailey, Basil
Item Type: Refine your search to only Patent

Automatic Electric Alarm.

Description: Patent for an inexpensive, simple, and durable automatic electric alarm that allows people in house or hotel rooms, mines, ships, shops, etc. to signal for another person. The alarm is wired to a clock so it can be programmed to go off at a certain time.
Date: January 7, 1896
Creator: Stansel, Thomas J.
Item Type: Refine your search to only Patent

Automatic Electric Alarm.

Description: Patent for an automatic electric alarm meant to be hooked up to an automatic dry-pipe sprinkler system, and protects against fire. The alarm goes off when the air in the sprinkler pipes falls below a predetermined level. This invention also signals an alert when there is a leak in the pipes, and is an improvement on the circuit-wires for similar alarms.
Date: January 7, 1896
Creator: Williams, George Bayley
Item Type: Refine your search to only Patent

Automatic Fire Extinguisher.

Description: Patent for a new and improved fire extinguisher. This design is "to provide for automatically putting out a fire in any building in which [the] apparatus may be located, upon the temperature in said building or room reaching any predetermined degree. This result is accomplished by the action of an expansible fluid—such as mercury—in a contained vessel, which actuates certain . . . mechanism, causing the structure to be flooded with water or with a fire-extinguishing gas or fluid" (lines 22-32).
Date: December 30, 1890
Creator: Fuller, Wily Scott
Item Type: Refine your search to only Patent

Automatic Gate.

Description: Patent for an improved automatic gate with levers, cam-blocks, camways, and cam-rods. It is centrally pivoting, uses a pulley, a cam groove, a forked bearing, chains, and chords.
Date: September 17, 1895
Creator: Everton, David Marion
Item Type: Refine your search to only Patent

Automatic Railroad or Farm Gate.

Description: Patent for an improved automatic railroad or farm gate that uses the "weight of the car or wagon upon an operating-board and automatically close[s] after the train has passed, and which can also be opened by hand when it is desired to let a single person pass through, either upon foot or horseback" (lines 20-25).
Date: October 4, 1892
Creator: Benson, Joseph Robinson
Item Type: Refine your search to only Patent

Automatic Railway-Gate.

Description: Patent for an automatic railway-gate or cattle-guard for use "at crossings, the entrances to tunnels, bridges or trestles, or at other places where it is desirable to guard the tracks" (lines 11-13). The invention is a simple and effective way for closing gates, can be operated from a distance, and is controlled by the wheels of passing trains.
Date: August 14, 1894
Creator: Baade, John
Item Type: Refine your search to only Patent

Automatic Railway-Gate.

Description: Patent for an automatic railway gate that consists of a picket shaft under the rails, cranks between the rails that are connected to the picket shaft, springs holding the shaft, tread rails that run along the rails and join the cranks, and guide blocks along each tread rail.
Date: February 13, 1894
Creator: Warren, Governor D.
Item Type: Refine your search to only Patent

Automatic Recording Apparatus for Vehicles.

Description: Patent for an improved automatic passenger register and mileage recorder for vehicles that travel on rails. It consists of a roller that is actives by a time motor, a strip that the roller moves, a pressure roller, a pair of rollers that a record sheet is wound between, a mechanism that controls movements of the pair of rollers, electromagnets that are connected to the seats, armature levers that mark the electromagnets current, a bell crank lever that marks the moving record sheet, and a sprin… more
Date: October 10, 1893
Creator: Baade, John
Item Type: Refine your search to only Patent

Automatic Repeating Railroad-Signal.

Description: Patent for an automatic repeating railroad-signal designed to be used with semaphore and other train-signaling apparatus. It eliminates mistakes made in notifying the central office and automatically reports "any change in the position or color of the signal to a central office over the ordinary telegraph-wire" (lines 14-16). The signal is a wheel that operates a key to send a message to the central office.
Date: January 28, 1896
Creator: Innes, Robert Hayward
Item Type: Refine your search to only Patent
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