UNT Libraries Government Documents Department - 631 Matching Results

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Saw Tooth.

Patent for a new and improved saw tooth. This design "relates to saws having attachable and detachable teeth held to their places by locking plates or keys inserted, like the teeth, within recesses in the saw-plate; and it consists in a novel construction of the parts, also in combining with the same a spring-bolt, whereby each tooth and its locking key are securely held in position, with facility for detachment when required, and whereby, also, any drawing action, in cutting of the wood on the… more

Date: July 29, 1884

Creator: Conover, Philip V.

Item Type: Patent

Electric Car-Brake.

Patent for a new and improved electric car-brake. This design "consists in a car-brake formed of a pinion attached to the car axle, the pinion taking in a ratchet-wheel provided with a projecting pin, that enters into the slots of a wheel provided with a sleeve, upon which the brake chain is wound, which sleeve can be moved on the axle by means of a lever that is actuated by a rod passing into a helix connected with a battery to the locomotive" (lines 11-19).

Date: February 24, 1880

Creator: Conover, Philip Vorus

Item Type: Patent

Electric Car Brake.

Patent for a new and improved electric car brake. This design "consists in a combination . . . of a friction-wheel mounted on a laterally-adjustable vertical shaft, provided at its upper end with a beveled cog-wheel, engaging with a beveled cog-wheel on a horizontal shaft, journaled in the under side of the car-floor, on which horizontal shaft is loosely mounted a worm, which engages with a worm-wheel mounted on [a] shaft . . . when this worm is locked on the shaft . . . the brake-chain will be… more

Date: September 26, 1882

Creator: Conover, Philip Vorus

Item Type: Patent

Car Coupling.

Patent for a new and improved coupling for railroad cars. This design consists in "a draw-head having a slotted top and a recessed bottom, of a transverse slotted bar journaled in bearings, one end being extended for the attachment of a handle, and the headless coupling-pin having the reduced or flattened portion to permit of its ready insertion and withdrawal from the transverse bar" (lines 73-80).

Date: January 11, 1887

Creator: Dial, Augustus A.

Item Type: Patent

Thill-Coupling.

Patent for a thill-coupling that has a clip-eye, pivot-bolt, and an open-slotted thill-iron that has flat and extended jaws with a hole. The jaws are lined up with the thill-iron, meant to secure a railroad spike into place. The invention also has a flat bar-spring attached to the thill-iron.

Date: July 30, 1895

Creator: Dibrell, Anthony

Item Type: Patent

Spring-Latch.

Patent for certain new and useful improvements in spring latches, including instructions and illustrations.

Date: November 7, 1899

Creator: Dockery, Allen B.

Item Type: Patent

News Drop, 25th Anniversary Summer 2021

Quarterly newsletter of the Edwards Aquifer Authority discussing news and activities of the organization as well as other information related to programs, projects, and topics related to water management and conservation.

Date: Summer 2021

Creator: Edwards Aquifer Authority (Tex.). Communications and Development Department

Item Type: Journal/Magazine/Newsletter