A scaffold capable of being erected for use on a level surface or on multi-level surfaces (such as a staircase) and constructed from three components, which each advantageously use U-shaped sides. Interconnection of the components, preparatory to erection of the scaffold, is achieved by orienting the U shapes in facing relation and obtaining a locking accommodation of one within the other. In unassembled condition, two of the components function as ladders.

An electric pulse motor which has a rotatably supported rotor and a stator assembly including a number of stator elements stationarily arranged around the rotor so that stator teeth of the stator elements axially oppose beyond the rotor via air gaps, the rotor comprising a plurality of rotor teeth, each being consituted by stacking a plurality of laminations, and an index support means provided with a plurality of rotor tooth insert slots arranged therein equiangularly in the circumferential dir...

The invention relates to a lightweight envelope having corrugated internal faces which serve to rigidify the envelope construction and also serve to protect an article or articles placed in the envelope from damage.

An arm holds a pallet jewel against a ratchet wheel which is thinner than the pallet jewel, and the arm is fitted with fingers which lie on either side of, but do not touch, the ratchet wheel. In case of mechanical shock to the system in a direction transverse to the ratchet wheel, the fingers come into contact with the face of the wheel and prevent disengagement of the jewel from the wheel.

A lever operated tap or cock, the lever actuating a cam to cause a piston to move to open a valve against the action of a spring and the water pressure. The valve is thus manually opened, but the closing of the valve is by spring and water pressure only.

A resealable container including a body portion, a threaded cover disposed in sealing relation with the body portion, at least one elongated segment of fracturable pressure sensitive adhesive tape having first and second ends secured lengthwise across the cover and body portion, and a severable label at least partially surrounding the body portion and overlapping the tape at about the body portion.

A data decoding system includes a data retrieval device which retrieves encoded data from a mass-storage device and transmits the data to a serial-to-parallel shift register. The shift register, operating at the data transfer rate, converts the encoded data to a parallel stream of bit-pairs. The bit-pairs are then transmitted, over parallel lines, to a second shift register which is operating at one-half the data transfer rate. The second shift register stores a sufficient number of the bit-pair...

This invention relates to an improved starwheel (20) for use in continuous packaging, filling or labelling lines for articles such as cans and bottles which has a plurality of spaced orienting devices (18) around its periphery. The improvement resides in that the orienting devices (18) comprise moveable fingers (26) which can readily assume the contour of the outer periphery of such articles and be releasably locked in place after the contour of the article is captured in the orienting device. A...

A sensor is disclosed which exchanges with associated data acquisition equipment a digital attribute signal, distinct from its transducer output signal, on the occurrence of a predetermined event. The invention is particularly illustrated with reference to an accelerometer which transmits sensor identification data to associated data acquisition equipment when power is first applied by using the same two signal lines as are used to provide power to the sensor and to convey the sensor output sign...

The diaphragm has an outer flange and an inner portion which is deflectable relative thereto, with the inner portion having a lone, primary annular corrugation connecting a center of the inner portion to the outer flange and which, when viewed in cross section, has the general shape of one full cosine wave. A plurality of radially disposed waves present ridges to the high pressure side of the diaphragm, with each fairing in amplitude from a maximum generally midway of the diaphragm radius to zer...