A horizontal grinder chipper with interchangeable rotors which allows for rapid changing of said interchangeable rotors. Where the interchangeable rotors each are in the form of a cassette which can be easily inserted into and in between a first frame portion 1302 and a second frame portion 1303. A hydraulically actuated pivoting clamshell cassette covering upper portion 920 configured to pivot to an open orientation for removal of a first rotor cassette and for insertion of a second rotor cassette.

A horizontal grinder chipper with interchangeable rotors which allows for rapid changing of said interchangeable rotors. Where the interchangeable rotors each are in the form of a cassette which can be easily inserted into and in between a first frame portion 1302 and a second frame portion 1303. A hydraulically actuated pivoting clamshell cassette covering upper portion 920 configured to pivot to an open orientation for removal of a first rotor cassette and for insertion of a second rotor cassette.

This disclosure relates to street sweepers and interchangeable conveyor modules for use with street sweepers that are interchangeable. A first conveyor module is provided that is mountable to the conveyor support structure of the vehicle wherein the conveyor is configured to transport debris from the broom assembly to the hopper on a continuous belt having paddles. A second conveyor module is also provided that is mountable to the vehicle structure wherein the second conveyor is a squeegee type conveyor. The first conveyor module and the second conveyor module are interchangeable on the street sweeping vehicle. Because the size envelope and attachment points and mechanisms are common, the two modules can be interchanged at will.

The invention relates to a backrest for supporting the back of a seated person, the backrest comprising mounting means for mounting the backrest on a frame of a seating device; comprising: —a first back part for supporting at least a part of the back of the person at a determined angle, which first back part has a stiffness such that during use the part of the back shapes itself substantially to the first back part, and wherein the backrest comprises adjusting means for adjusting the angle and/or the position of the first back part relative to the frame; and —a second back part which has a flexibility such that during use the second back part shapes itself substantially continuously to another part of the back of the person. The invention further relates to a method for adjusting such a backrest and a (wheel) chair provided with such a backrest.

A method and apparatus for protecting downstream engine components from damage in the event of a turbine failure involves positioning a debris trap downstream of a turbo and upstream of an engine. The debris trap includes an outer body with an inlet opening at a first end of a first diameter, an outlet opening, and an interior of a second diameter which is larger than the inlet opening. An inner body extends into the interior of the outer body with air flow openings in the inner body communicating with the outlet opening. An impaction plate is supported by the inner body in axial alignment with the inlet opening. Turbo fragments strike and are slowed by impact with the impaction plate. The turbo fragments collect in the interior of the outer body with air escaping by entering the air flow openings of the inner body and passing to the outlet opening.

Retrofit kits for retrofitting LED light engines into existing light fixture housings. The retrofit kit includes a hook bracket that may be mounted in the housing and from which an end of the LED light engine can be suspended so as to permit an installer to electrically connect the LED light engine. The retrofit kit also includes a mounting bracket to secure the free end of the LED light engine into the housing after the LED light engine has been rotated upwardly into the housing from the hanging position.

An improved expanding friction disk for use in a clutch of a power transmission system. The improved expanding friction disk accommodates multiple clutch pack configurations including clutch packs utilizing novel improved friction disks, is compatible with wear liners and operates with reduced friction including a reduced difference between the static and dynamic coefficients of friction in the ramp mechanism.

A method for exchange of a filter assembly is described, wherein a contaminated filter assembly is exchanged for a refurbished filter assembly or a new filter assembly.

A firearm sight adjustment and installation tool is described. The tool serves to facilitate and expedite the accurate adjustment and/or installation of sights on the slides of a firearm, whenever the sights allow this adjustment. The tool includes a plate, a plate with nuts, tightening screws, a spacer block, at least one adapter, a drift screw, an interchangeable pushing element and quick reference featured on one of the plates. With the tool and little expertise, an individual may manually adjust both the front and rear sights of a firearm to increase the accuracy of the firearm without additional tools.

The invention relates to a cell of a modular electrolyzer having a frame-shaped flange formed by two superposed elements, welded along the internal periphery in order to increase the local flange thickness in a portion of higher exposure to corrosion, for the sake of improving its resistance. A method of repairing electrolysis cells having a frame-shaped flange formed by two superposed elements by removing and replacing only the outermost frame, more subject to corrosion, is also described.