Abstract: A method of making a homogeneous mixture comprising a liquid hydrocarbylsulfonic acid and a polyolefin, the method comprising multiple stages of adding, mixing, and monitoring of temperature of the ingredients. The method enables making embodiments of the homogeneous mixture having more than 3 weight percent of the liquid hydrocarbylsulfonic acid incorporated into the polyolefin and prevents fouling of the mixer device.

Abstract: A method of making a homogeneous mixture comprising a liquid hydrocarbylsulfonic acid and a polyolefin, the method comprising multiple stages of adding, mixing, and monitoring of temperature of the ingredients. The method enables making embodiments of the homogeneous mixture having more than 3 weight percent of the liquid hydrocarbylsulfonic acid incorporated into the polyolefin and prevents fouling of the mixer device.

Abstract: A suspension trauma relief device includes a member extending from a ring to which the safety harness and lanyard are attached. The member provides a support for the wearer so that the wearer can take his/her weight off of the safety harness, and particularly the leg straps on the safety harness, to allow blood circulation and prevent suspension trauma. Preferably the member includes at least one foot support allowing at least one of the wearer's feet to be placed in the foot support to take the wearer's weight off the safety harness and avoid any constriction of the straps of the safety harness on the person's blood flow.

Abstract: A tool lanyard for releasable attachment to a safety harness of a workman to resiliently arrest the inadvertent dropping of a tool by the workman. The tool lanyard includes a looped cord on one end of the lanyard to receive a tool in a tightly gripped relation and a hook on an opposite end of the lanyard for mounting on a ring of the safety harness. A resilient connecting structure between the looped cord and the hook minimizes any shock action resulting from inadvertent dropping of the tool while arresting the dropping of the tool. The resilient connecting structure includes an outer non-elastic sheath about an inner elastic cord.

Abstract: A lifting device for a pallet comprising a rigid lower L-shaped lifting frame having a pair of lower rigid legs for inserting within openings in a pallet having a load thereon. The L-shaped lifting frame includes upwardly extending back frame members extending upwardly from the lower lifting legs. A pair of cables are connected to the back frame members and another pair of cables are connected to the free ends of the lower lifting legs. For connecting the lifting device onto the pallet, the front cables connected to the free ends of the legs are disconnected so that the legs may be inserted within openings in the pallet with free ends of the legs extending from the pallet. Then, the front cables are reconnected to the lifting legs for lifting of the pallet and load thereon.

Abstract: A lanyard (12) connected to a body harness (10) for supporting a person from fixed horizontal support member (38) upon an inadvertent fall of the person from a normal supporting surface. A hook (16) on the upper end of the lanyard (12) is looped over the fixed horizontal support member (38) and received within a V-shaped eye opening (54) of an eye member (50). The V-shaped eye opening (54) is defined by a pair of straight converging sides (58,60) which intersect at an arcuate apex (62) having a relatively small width to receive the hook (16) in a snug fit.

Abstract: There is described a concentrated photographic silver halide developing solution which comprises from 50 to 150 g/liter of an ascorbic acid type compound of the general formula I: ##STR1## or alkali metal salts thereof, in which the group R represents a hydroxylated alkyl group, and at least one basic compound the anion of which is carbonate, sulphite or hydroxide of which the cation is an alkali metal, especially sodium or potassium, the total sodium to total potassium ion ratio in the concentrated developing solution being from about 50:50 to 0:100 (mole: mole).Preferably the concentrated solution is entirely aqueous but it may comprise a proportion of water-miscible organic solvents such as ethyl alcohol, or glycol solvents.

Abstract: A method of ultrasonically inspecting an article comprises the following steps: transmitting a succession of ultrasonic pulses into the article; for each transmitted pulse, detecting and registering electrically the reflected pulse from the front surface of the article; detecting and registering electrically, with a predetermined gain, any reflected pulses indicative of faults or discontinuities within the article; detecting and registering electrically, again with a predetermined gain, at least the first reflected pulse from the rear surface of the article; monitoring the amplitudes of the registered reflected pulse from the front surface and at least the first reflected pulse from the rear surface of the article; and continuously controlling gains for succeeding pulses in dependence on the amplitude of the reflected pulse from the front surface of the article.