摘要:
A method of, and apparatus for, leak testing a package, in which the package (6) is placed in a sheet-like, gas-tight envelope. A pressure differential is generated between the outside and the inside, as a result of which the package is closely enveloped by the envelope. This pressure differential is so large that it decreases the volume of the package and increases the internal pressure in the non-filled portion thereof. In the space (16) ("measuring space") between the package and the envelope pressed against it, a pressure is used which is lower than the increased pressure in the package. In the sealed measuring space, the change in pressure is measured for a pre-determined measuring period.
摘要:
This invention relates to a process and an apparatus for leak testing a package (11), which comprises
placing a sheet-like and airtight wrapper (13) around a part of the package liable to leakage, e.g. a closing element (12), means for applying pressure to the inside of the wrapper for causing the wrapper (14) to fit closely around the said part (12) of the package and for hermetically pressing the wrapper (17) to a part of the package outside the part to be tested, means (24) for sealing the space ("measuring space") between the enveloped part of the package and the wrapper pressed against it from the surrounding space by applying a pressure ("measuring pressure") in the closed measuring space which is different from the pressure prevailing in the package at this moment, and means (25) for measuring the change of pressure in the closed measuring space for a determined measuring time.
摘要:
Apparatus for transporting articles includes a closed track (1) comprising rectilinear track portions. Disposed in the track are series of carriers 2 movable along the track and arranged to carry the articles. Drive means 3 are provided which act on the respective rear one of a series of successive carriers, which contact each other in a non-resilient manner, for incrementally moving the carriers along the track. There is also provided a joining means (4) which acts on the carriers of a series to keep the carriers in closed-up formation as they are moved.
摘要:
For temporarily removing a product from a series of products supplied by a supply conveyor, the product (13) is taken over by a movable carrier (12) placed in a starting position in the vicinity of the supply conveyor (10). The carrier with the product is then removed from the conveyor, for example, for the product to be subjected to a treatment. After the treatment, the carrier with the product is returned to the starting position, where the product is placed on a discharge conveyor (11) while simultaneously a next product from the supply conveyor is placed onto the carrier.
摘要:
For temporarily removing a product from a series of products supplied by a supply conveyor, the product (13) is taken over by a movable carrier (12) placed in a starting position in the vicinity of the supply conveyor (10). The carrier with the product is then removed from the conveyor, for example, for the product to be subjected to a treatment. After the treatment, the carrier with the product is returned to the starting position, where the product is placed on a discharge conveyor (11) while simultaneously a next product from the supply conveyor is placed onto the carrier.