According to the invention, the support tape (1) between the first and second reels (3, 4) is twisted only in one direction of rotation by at least a quarter turn, preferably by at least a half turn.
By inserting the contacting body into the contact opening of the current conductor rail, pushing through and performing a quarter turn, contacting takes place.
When the piston (4) is actuated by actuating means, the hub (23) of the bevel gear (2) actuates the shaft (A) of the quarter turn valve.
The controller then returns the filter assembly to filtration operation by a reverse one-quarter turn of the turn knob of the rotatable valve assembly.
The plug (20) or socket (18) are then turned one-quarter turn at which point the locking mechanims (16) falls into place.
The helical elements of the second group are approximately quarter- turn helical elements having an electrical length in the region of one quarter wavelength and a second operating frequency of the antenna.
The fasteners (5a, 5b) may typically be quarter or half turn captive fasteners.
An apparatus and method of making and applying threaded twist-off neck finishes for metal containers is provided.
Each frame half is next transferred from the first position to the second position by a 90° rotation in the plane of the frame.
Upon displacement of the sleeve element with the inner guide rollers in the slanting groove sections, the inner cylindrical element is turned a quarter of a turn.
In this manner, it is unnecessary for the truck (11) to effect a quarter-turn in the alley (4) whereby the latter can be of a much smaller width than normal.
The swinging movement is provided by means of a knob (45) which can be rotated through an angle of approximately a quarter of a full turn.
All latching means can be opened from the outside using a key and turning said key by a quarter of a turn.
A collar (1) for use in closing a can so as to enable the can (10) to be closed by a screw or twist-off style of closure (20).
If no wheelbarrow is available, the tub may also be rotated through a quarter of a turn and carried on the user's head.
A retrofit valve stem seal assembly (100), which can be retrofitted to existing quarter-turn valves already in service, is provided.
Then the person is turned for about a quarter of a turn until his or her legs have come above the bed.
The key enables four functional positions by means of quarter-circle turns: both outlets open, one outlet open and another closed, and both outlets closed.
The plastic container is equipped with an associated rotary closure, which can be brought from a closed position to an open position by a pivoting movement.
A rigid elongated main body (12) supports a twist-top opening section (18), a jar lid opening section (14) and a tab-top can closure opening section (16) in a unitary construction.
A twist-on/twist-off resealable assembly for a can-end, such as a metal can (5) used in the beverage industry includes a first set of knuckles (4) formed on the can body near its top opening.