An aircraft automatic flight control system includes a pair of fast, limited authority inner loop actuators (12, 13) responsive to signals (52-55) indicative of aircraft attitude (68, 69) or other flight parameters such as airspeed (84), the inner loop being recentered by an outer loop actuator (37) responsive to attitude or other aircraft parameter-indicating signals (54, 55). Commands (40) applied to the outer loop are applied in a lagged fashion (58, 59) in opposite direction so as to drive t...

A phase-locked loop circuit is disclosed for use, for example, in the data recovery system of a rotating magnetic disk drive unit employing a phase encoded signal format. The phase-locked loop circuit has a dual mode of operation wherein captive range is assured by providing a first frequency locking mode of operation wherein a voltage controlled oscillator (VCO) is first locked in frequency to a reference signal and a second phase locking mode of operation wherein the VCO is subsequently locked...

A loop back system for a loop transmission line allows the whole system to be looped back for addition or removal of a transmission device, without cutting off loops and in exactly the same manner as in ordinary data transfer. A plurality of transmission devices capable of generating loop-back commands are connected to an active loop and a backup loop. First one of the transmission devices transmits loop-back commands, while second and third ones individually receive the loop-back commands to co...

A major/minor loop bubble memory configuration that provides gap free serial access to the data in the minor loops and which maintains the non-volatility of data when subjected to a power-on-off-on sequence. The configuration includes a timing minor loop in combination with the data storage minor loops in the major/minor loop array. The placement of a single timing bubble within the timing loop permits gap free serial access to the data in the remaining storage minor loops.

A compile method employs loop fusion to improve execution of a first loop and a second loop in a code sequence. A compile method initially peels one or more loop iterations from one of the loops to cause each of the loops to exhibit an equal number of loop iterations. Thereafter, an attempt is made to fuse the first and second loops, upon a condition that the resulting fused loop produces a same computational result as would be produced if the first loop and second loop were not fused. If the co...

Hinged loop cap of the type adapted for fitting upon the top of a fence post, so as to support a horizontally extending fence top rail. The loop caps may also include a wire strand supporting arm extending diagonally above and away from the loop cap.

An eye or loop assembly for forming a connection between the boat deck and boat bow or stern through the boat hull in which the eye or loop is in the form of a pair of bow-eyes with legs extending completely through the deck and bow or stern and with an inextensible adjustable tension member connected to each bow-eye inside the hull and stationarily anchored inside the hull of the boat. The arrangement provides for division of the load imposed on the eye or loop thereby greatly reducing the poss...

A hanger device for suspending dunnage or the like between transported articles of freight is of the gimbal type which is freely inclinable in any direction relative to the dunnage. The hanger comprises an elongated rod of circular cross-section having a closed loop portion at its longitudinal center which is loosely connected to the dunnage so that oppositely directed arm portions of the hanger will overlie adjacent articles even though the articles are of different heights. The arm portions ar...

A loop type fastening mechanism which utilizes an air operated plunger which pushes the fastener into engagement with the support.

A simple but effective device for holding a chain looped around a bundle of elements in a tightened condition. A catch element is associated with an eyelet which is disposed at one end of the chain and through which the other end is passed. The catch is automatically shifted as the chain passes through the eyelet to reduce the size of the loop but moves back to a latching position to prevent the chain moving through the eyelet to enlarge the loop.