Abstract: 1-Monophosphate esters, 1,3-bisphosphate esters and cyclic phosphate esters of 9-(1,3-dihydroxy-2-propoxymethyl)guanine are useful as antiviral agents.

Abstract: An elevator mechanism device having first and second platforms mounted in a frame for movement relative to one another wherein a nip is formed between a lower edge of the first platform and an upper edge of the second platform as they move toward one another and wherein an electrically operated control circuit is provided for controlling the movement of the platforms relative to one another, the improvement of a flexible skirt extending below the lower edge of said first platform across the width of the nip whereby during movement of the platform to close the nip, a trip will be engaged by and deflected by any object which may project into the nip, a circuit breaker operable to de-activate the control circuit, the trip communicating between each end of the flexible skirt and the circuit breaker to activate the circuit breaker to de-activate control circuit when the trip is deflected to an extent less than that required to permit the object to be clamped between the first and second platforms.

Abstract: Compounds useful as antiviral agents are defined by the following formula: ##STR1## wherein R.sup.1 is hydrogen, --C(Y)OR.sup.7 or --C(O)NHR.sup.7 wherein R.sup.7 is alkyl of one to twelve carbon atoms, alkenyl of two to twelve carbon atoms, cyclopentyl, cyclohexyl, phenyl or benzyl;R.sup.2 is --C(Y)OR.sup.7 or --C(O)NHR.sup.7 wherein R.sup.7 is as defined above;Y is oxygen or sulfur;R.sup.3 is hydrogen, halo, thio, lower alkylthio of one to six carbon atoms, azido, NR.sup.9 R.sup.10 wherein R.sup.9 and R.sup.10 are independently hydrogen or lower alkyl of one to six carbon atoms or --NHC(O)R.sup.8 wherein R.sup.8 is hydrogen, alkyl of one to nineteen carbon atoms or 1-adamantyl; and(a) R.sup.6 is hydrogen, halo, lower alkoxy of one to six carbon atoms, azido, thio, lower alkylthio of one to six carbon atoms, --NR.sup.9 R.sup.10 wherein R.sup.9 and R.sup.10 are as defined above or --NHC(O)R.sup.8 wherein R.sup.8 is as defined above and R.sup.4 together with R.sup.5 is a bond; or(b) R.sup.5 together with R.

Abstract: A pneumatic valve which is suitable for use in controlling the operation of a pneumatic drive system such as that used for raising and lowering the body of a dump truck. The valve is opened and closed by a slide member which is mounted in a cylinder fomed in the valve housing. An air inlet passage opens into the cylinder and an air outlet passage and a vent passage open from said cylinder. A first flow control valve in the inlet passage which is operable to close to prevent and open to permit the passage of air from the inlet passage to the cylinder. A second flow control valve in the vent passage which is operable to close to prevent and open to permit the passage of air from said cylinder to the vent passage thereby to vent the outlet passage.

Abstract: An improved floor board construction for a truck or trailer has a floor boards which are each formed with a groove extending longitudinally of and opening laterally from each side edge thereof. The grooves of the butting side edges are aligned with one another to form a passage extending longitudinally of the floor boards. An elongated strap mounted in said passage and extends longitudinally thereof. The strap projects laterally into each oppositely disposed groove. A plurality of mounting passages open through the floor boards, strap and underlying cross members. A mounting screw is threaded into each mounting passage of said strap and its associated mounting passage of said cross member to secure said floor boards and mounting strap with respect to said cross members.

Abstract: An hydraulic wobble pump having an inlet passage extending inwardly from one end thereof through the central portion of said housing and opening into said wobble chamber. The inlet passage being arranged to admit hydraulic fluid to said wobble chamber substantially centrally between said cylinders so as to be substantially uniformly distributed to each cylinder in use.

Abstract: A multi-port valve comprises a valve seat skeleton and a valve body of readily castible material cast about the skeleton. The valve seat skeleton comprises a plurality of wear-resistant members each having a wear-resistant operative surface formed thereon. The wear-resistant members are secured to one another to retain the wear-resistant operative surfaces thereof in a predetermined fixed arrangement. The valve body has a plurality of valve passages formed therein, one for each valve port, at least one of said passages opening to expose each wear-resistant operative surface for engagement by a movable valve component mounted in each valve passage to bear against and move relative to each wear-resistant operative surface in use. The valve is manufactured securing a plurality of wear-resistant members to one another to form a valve seat skeleton on which the wear-resistant operative surfaces are arranged in a predetermined fixed relationship, and casting the valve body about said skeleton.

Abstract: The compound 9-(1,3-dihydroxy-2-propoxymethyl)guanine and the pharmaceutically acceptable salts thereof are useful as antiviral agents.

Abstract: The compound 9-(1,3-dihydroxy-2-propoxymethyl)guanine and the pharmaceutically acceptable salts thereof are useful as antiviral agents.

Abstract: In a dump truck, the most efficient way of raising the container body is to apply a lifting force to the end of the body remote from the pivot point. In some applications it is difficult to do so because of height restrictions and it is particularly difficult to do so in a telescoping container body in which the end of the container body which is remote from the pivot point moves in relation to the pivot point. The present invention overcomes this difficulty by mounting the extensible ram in a position remote from its upright position and providing a mechanism for pivoting it to its required upright position prior to its operation as a hoist. In a telescopic container body, the extensible ram is normally stored in freeboard space disposed below the front section of the container body and is raised into an upright position at the front end of the telescoped body in response to movement of the front section from its extended position to its retracted position.

Abstract: The compound 9-(1,3-dihydroxy-2-propoxymethyl)guanine and the pharmaceutically acceptable salts thereof are useful as antiviral agents.

Abstract: A pallet loader particularly suitable for use in loading pallets onto a truck comprises a guide structure mounted at the loading end of the truck and a slide frame slidably mounted in the guide structure and an elevator mechanism mounted at one end of the slide frame. The slide member is slidably mounted on the guide structure for movement between an extended position in which the elevator mechanism is disposed outwardly from the loading end of the truck and a retracted position in which the elevator mechanism is disposed in an overlying relationship with respect to the bed of the truck. The elevator mechanism is operable when the slide frame is in the extended position to engage and raise and lower unattached load units. The slide frame is provided with a drive mechanism for driving it longitudinally of the frame so as to move palletized load units carried thereby longitudinally onto and off of the loading end of the truck.

Abstract: A telescopic truck body incorporating an ejection bulkhead. The telescopic truck body consists of two sections telescoped one within the other. A movable bulkhead is located within the inner section of the telescopic body and a drive means is provided for driving the bulkhead longitudinally of the inner section as the inner section is driven with respect to the outer section. The drive is adapted to move the bulkhead longitudinally of the inner section so that it is located adjacent the discharge end thereof when the inner section is fully telescoped within the outer section.

Abstract: A dump truck having a telescoping container body which is initially telescoped to a reduced length to discharge a portion of the load therefrom in response to the telescoping action and thereafter elevated to discharge the remainder of the load in the manner of a conventional dump truck. The fully extended length of the container body, which determines the load carrying capacity of the container body, is greater than that which would normally be elevated to directly discharge the load therefrom in the manner of a conventional dump truck. The retracted length of the container body is no greater than the acceptable length of a container body for elevating to dump a load in a conventional manner.

Abstract: Cold water is supplied through an inlet water line from a source under pressure to a cold water basin from which it is siphoned to a hot water tank therebelow. The hot water is siphoned out of the tank for brewing coffee extract. A valve in the inlet water line is closed when the level of the cold water in the basin engages a probe or collar the elevation of which can be adjusted. Under conditions of low water pressure the siphon to the tank may start before the shutoff level in the basin is reached. Water may continue to flow without that level being reached. The level of the hot water then rises above the siphon out level of the hot water siphon and engages a probe resulting in closure of the valve to prevent further flow through the hot water siphon and overflow of the tank. Should the level of the water in the basin rise above the shutoff level, a float switch is opened to close the valve.

Abstract: A load transfer device for transferring a portion of the load normally carried by the rear wheel sets of a dump truck to the front wheel sets of the dump truck. The device is in the form of a tag frame which is pivotably mounted on the tailgate of a dump truck so as to be movable between an elevated position in which the tag frame is disposed closely adjacent the tailgate and a lowered position in which the wheel set of the tag frame is in the current engaging position.