A telescopic jib for a crane, the jib being provided with an inclinable telescopic end element which is slidable in the internal element of the jib and can be fixed to this element in various positions when it is aligned therewith, by pinning or the like, and which when in a fully extended position can assume various inclinations relative to the jib, the said end element then being capable of pivoting around the fixing pin and of being fixed in the selected inclined position by means of another ...

The keyboard operated phototypesetting display machine produces continuous photographic paper output copy in 15 to 72 point range sizes which is top-aligned for all point sizes. A continuous rotating drum supports a font strip containing two rows of characters, timing slits, and coded data indicating the width of each of the characters. The selected characters are strobed to a magnifying lens and projected onto an image plane containing the photographic paper. The desired point sizes are obtaine...

A photographic camera provided with a circuit composed of an indicating lamp connected to one of a pair of terminals on the camera which terminals are connectable respectively to synchro-terminals of a flash device. A shunting condenser is connected in parallel with the indicating lamp, and a circuit having a resistance and a manually operative test switch in series, in parallel with a synchronizing switch is connected between the other of the pair of terminals and the indicating lamp and conden...

An electrical connector for a tape cable which consists of metallic tapes embedded side-by-side in an insulating medium consisting of a housing carrying an electrical contact, a rotatable member within the housing and having a portion of its diameter of greater radius and a portion of lesser radius means for clamping the tape cable with respect to the housing. The rotatable member engages the tape cable within the housing so that, when the connector is assembled and the member rotated, the porti...

A vehicle transport including a low-bed trailer in which the spaced side frames of the superstructure, except for the connection between their bottom edges, are interconnected solely by vertically adjustable horizontal cross-ties on which the forward ends of track assemblies are swingably supported for vertical adjustment, the rear ends of the respective track assemblies being vertically adjustable independently of their forward ends. All of the supporting and adjusting means for such assemblies...

A microporous polyurethane coating is given an appearance resembling that of calf grain leather by being sprayed with a solvent for the polyurethane, for example N-N dimethylformamide and heating the surface to evaporate the solvent. The preferred spray has a narrow range of droplet sizes defined in the specification. 7 Claims, No Drawings

A focal plane shutter includes a front screen and a rear screen, the latter being locked in a cocked position by an electromagnet through a locking lever while the electromagnet is energized. The locking lever is biased in a direction to contact the electromagnet and lock the rear screen. When the electromagnet is de-energized after a time period controlled by an electric circuit, the rear screen is driven against the bias of the locking lever.

In a housing for an airfield inset runway light the upper and the lower parts of the housing are connected by means of screws and clamping members supported thereby and rotatable by means of the screws between two positions limited by stops, in one of which the clamping members project laterally from the upper part of the housing and engage the lower surface of an unbroken circumferential flange provided in the lower part of the housing and in the other of which the clamping members are turned c...

A wheeled shopping cart is collapsible so that it may be carried as a hand-bag. The wheels of the cart along with its supports may be collapsed and the cart may thereafter be folded so as to reduce the overall size thereof into a hand carrying bag.

In an automatic battery charging system a small pilot cell is connected in the feedback circuit of an amplifier of which the input is proportional to both the direction and magnitude of the main battery current. Thus the pilot cell is charged at a rate proportional to the discharge of the main battery and vice versa, and so arranged to be partially charged when the main battery is fully discharged, and fully discharged when the main battery is fully charged, and in the latter condition the decre...