Other

The Boeing Company

Rockland, Inc.

Rockland Manufacturing Company

Pileco Inc.

Robert C Tyer

Robert E Fitch

Gordon H Tucker

Charles Lloyd Hawkins

Larry C Bruce

The auger gasifier described includes, in its preferred embodiments, a vertically elongated ('oblong') primary gasifier chamber with an auger that can move up and down, allowing for large amounts of fuel input when necessary. This improvement, in turn, requires and/or is facilitated by provision for simultaneous elevation adjustments of the auger and bed dam to assure that fuel material is processed in degrees from the top downward without sweeping massive amounts of the fluidized bed materials towards the output end of the chamber. Another improvement involves provision for pressurization of the primary gasifier chamber, allowing substantial improvements in the speed of processing materials through the gasifier. Due to issues arising from thermal expansion of the refractory material lining the chamber, provision is made for nozzle and refractory imbedded pipe hole thermal expansion capability. Finally, provision is for steam injection into and/or auxiliary heating of the chamber to enhance gasification and the production of syngas.

Auger gasifier with continuous feed

In accordance with the present invention, a chain driven reciprocating hammer is disclosed. The chain driven reciprocating hammer includes a chain system for lifting a ram to a drop point. The chain system includes a plurality of sprockets and a chain with at least one mesh link to mesh with the ram. Additionally, the chain driven reciprocating hammer includes an adjustable tandem release sprocket mechanism. Also, the chain driven reciprocating hammer includes a center and clamping mechanism configured to secure a work input.

Chain driven reciprocating hammer with work piece centering and clamping

The subject invention pertains to an improved air-operated hammer which can utilize a pressurized air reservoir located near a pressurized air entrance of the hammer. This pressurized air reservoir can continue to receive pressurized air even when the hammerhead is failing and, preferably, can enable pressurized, air to enter the hammer at, a faster rate than the hammer's external compressed-air source can supply. The subject invention can utilize a compressed-air source with a lower flow rate and/or lower pressure in comparison with a typical air-operated hammer, in order to achieve the same hammer performance. Alternatively, the subject invention can utilize an equivalent compressed-air source in comparison with a typical air-operated hammer, in order to achieve superior hammer performance, for example shorter time periods to raise the hammer head leading to move hammer drops per time. The subject invention also related to an automatic control valve system which can be utilized to cycle the subject hammer. The subject valve system can utilize pressurized air, for example from a compressed-air source or a pressurized-air reservoir associated with the subject hammer.

Air-operated hammer

An implement snubbing device positionable between a boom and an implement including a compressible member positioned generally between, and having a longitudinal axis extending generally between, the boom and the implement. A boom connecting mechanism connects the compressible member to the boom, and an implement connecting mechanism connects the implement to the compressible member. The compressible member has a compressing mechanism which comprises the compressible member along the longitudinal axis and is actuated by the swinging movement of the implement about a lateral axis generally perpendicular to the longitudinal axis. A second compressing mechanism compresses the compressible device along the longitudinal axis and is actuated by the movement of the implement about a second lateral axis generally perpendicular to the first lateral axis.

Implement snubbing device

A tree shearing apparatus including a main frame mountable on support arms of a machine, a pair of pivot pins mounted on the main frame, a blade support arm mounted on each of the pivot pins for pivotal movement about the axis of that pivot pin, a cutting blade having a leading cutting edge mounted on each of the blade support arms, an element mounted on the main frame that pivots the blade support arm thereby moving the leading cutting edges toward and away from each other, causing the leading cutting edges to sever a tree trunk or the like positioned between them, and an element mounted on the main frame and operatively connected to at least one of the pivot pins that adjusts the attitude of the pivot pin and correspondingly adjusts the inter-relationship of the positions of the leading cutting edges of the blades.

Tree shearing apparatus

An exit gas control apparatus for flame stabilization and performance tuning of a starved-air combustor includes a first air conduit communicating with the combustion chamber near the fuel inlet and a second conduit communicating with the combustion chamber near the residue outlet. A damper is provided to proportion the discharge of combustion gases entirely through the first conduit, entirely through the second conduit, or proportionately through the first conduit and the second conduit to enable the starved-air combustor to operate in full countercurrent, full co-current, or partial co-current and countercurrent modes, respectively.

Exit gas control for flame stabilization and performance tuning of

A feeding system for a starved-air combustor which enables the batch feeding of preselected weights of fuel into a combustion chamber of the starved-air combustor. The feeding system also blocks the entry of ambient air into the combustion chamber during the feeding of fuel to the chamber and can control the feeding of fuel into the combustion chamber in response to the orientation of a fuel-conveying auger in the combustion chamber.

Fuel feed technique for auger combustor

A control system for a starved-air combustor wherein a combustion chamber is divided into a plurality of combustion chamber zones with separate overfire and underfire airflows being individually provided for each zone. Fuel is fed to the combustor in selectable constant weight batches and the supply of underfire air is proportional to the rate at which an auger rotates to convey the fuel through the combustor. Overfire air is supplied to each combustion zone in an inverse relationship to the variance of a sensed temperature within the zone from a predetermined temperature.

Control system for a single auger starved-air combustor

An incinerator having a variable speed auger to continuously feed refuse into and through a combustion chamber and into a water filled ash receptacle. Preheated combustion air is supplied through tangential openings in and along the combustion chamber walls, with the hottest air supplied at the combustion chamber inlet. The auger has a water cooled hollow shaft and a heat resistant flight concentrically spaced away from the auger shaft by support members. The pitch of the auger flight gradually decreases from the inlet end to the discharge end of the combustion chamber. The exhaust gases pass through heat exchangers and dust collectors before being emitted from the incinerator. A portion of the exhaust gas is recirculated by a blower to an air curtain in the front of the inlet unit to preheat the entering refuse.

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Baldwin, FL, United States of America

Robert C Tyer