摘要:
The device according to the invention is intended for protective gas coverage on the root side in the area of tube welding. The peculiar feature of the invention is a plurality of discharge duct means (19,20) evenly distributed at a distance from the gas supply means (15,14). Thereby a more safe removal of atmospheric oxygen from the enclosure (17) created by the device is ensured, thus improving the quality of the welding and reducing protective gas consumption in the welding process.
摘要:
A device for tearing-up and stoking straw into a burner unit has a reciprocating slide (1) provided under a feed shaft (16) for straw bales (17), the slide (1) having mutually staggered teeth (2) on its upper side (3) in a front part of the slide (1) and upstanding elongated fins (6) extending in the direction of movement of the slide (1) in a rear part. The front part is designed as piston means (7) for the conveyance and compression of comminuted straw. The straw is torn-up already at the initial advance movement of the slide (1) towards the channel (12) because the teeth (2) are in engagement with the lowermost bale (17), whereas the bale (17) is upheld by the teeth (2) and the fins (6) during the return movement of the slide (1). The piston means (7) ensures that the shredded straw (18) is pushed into a stoking channel (12) for the fireplace (15) of a boiler (14).
摘要:
A transporting and elevating device (10,12) according to the invention for containers (20) has carrying means (122) attached to the upper part of a two-part carrying frame (30) for the container (20). The parts of the carrying frame (30) may be mutually displaced by internal hydraulic cylinders, which makes it possible for two devices (10,12) according to the invention placed along sides of a transport vehicle to reach up above a container (20) resting on the platform of the vehicle and thereafter pull its lower part upwards to the level of the platform, whereafter carrying means like chains (122) together with braces (126) and push-rods (68) makes it possible to elevate and lower the container.
摘要:
A PEM water electrolyser module comprising a plurality of structural plates each having a sidewall extending between opposite end faces with a half cell chamber opening, at least one oxygen degassing chamber opening, and at least one hydrogen gas collection manifold opening, extending through the structural plate between opposite end faces. The structural plates are arranged in face to face juxtaposition between opposite end plates.
摘要:
The invention relates to a lifting tool for handling of a pipe-string (2) pipe length (3, 4) for joining and lowering or lifting and disassembly of conductor, casing, risers, drill string, or similar in a bore hole (160) or well (160). The invention also relates to a lifting system for lifting or lowering pipe length (3, 4) and pipe-string (2), for joining and lowering or lifting and disassembling of conductor, casing, risers, drill string, or similar in a bore hole (160) or well (160). The lifting system comprises a lifting tool with a lifting part (20) and a support part (5) connected to an elevator apparatus (70) which is mounted to a top drive (60) and where the lifting tool lifting part (20) shall operate in conjunction with a power slip (150) which is configured to receive and hold in a fixed position a standing pipe length or pipe-string (2). Finally the invention comprises a method for lifting of pipe length for joining of pipe length (3, 4) to a pipe-string (2), including conductor, casing, risers, or similar for use in a bore hole or well (160) with the use of a lifting system and lifting tool according to the invention.
摘要:
The invention concerns a vertical plate freezer for freezing foodstuffs, e.g. freezing fish on board a fishing vessel. The plate freezer has forks (7) provided with lower and rear coverings (10,11). The forks (7) have a toe (40) with a contact surface facing slantingly upwards and which can abut on a contact plate (17) with a contact surface facing slantingly downward so that water may easily run off the slantingly downward facing contact surface. The contact surface is preferably made of thermally insulating material. The coverings are fastened to support members (8,9) by means of transition elements (18) made of a thermally insulating material, so that the coldness from the coverings (10,11) is not conducted to the support members (8,9).
摘要:
Ventilation lead-in for fitting in a membrane, preferably an underroof, where the lead-in has an upper and a lower annular flange intended to be disposed at each side of the membrane. In a first stable condition before fitting, the upper and the lower annular flanges extend frusto-conically away from the lead-in in each their direction. In a second stable condition after fitting, the upper and the lower annular flanges extend frusto-conically away from the central hole in the same direction. Thereby, the membrane is retained between the two flanges by squeezing. The ventilation lead-in also comprises an insert with a net against drifting snow.
摘要:
A window blind, pleated curtain or the like, suspended in a cord drive system mounted in a housing, adapted to be positioned between the glass panes in a double glass window, particularly an insulating glass window. The cord drive system is connected with a laterally arranged, longitudinal support shaft (16), mounted in the housing, which support shaft (16) is arranged rotatable as well as laterally displaceable in axial direction in order to accomplish winding and dewinding of the cord drives (10, 12; 66, 68; 78, 78') in one single layer along parts of the support shaft, in order to hoist or lower the blind, respectively. The support shaft (16) is provided with threads in engagement with a threaded member (24, 28), which is not rotatably connected in said housing (2), effecting that said support shaft (16) by rotation synchronously is being moved in axial direction.