The invention relates to a double acting metering and dispensing apparatus for high viscosity materials having a cylinder and a piston reciprocally movable within the cylinder having a charging and discharging stroke and forming proportioning expandable and contractible chambers such that for every stroke of the piston, a measured amount of viscous material is dispensed to the appropriate dispensing area.

A cylindrical case (8) is inserted hermetically into a first housing (1) of a socket (A), and the cylindrical case (8) is urged rightward by an advancing spring (9). A sliding cylinder (20) is inserted hermetically into the cylindrical case (8), and the sliding cylinder (20) is urged rightward by another advancing spring (28). As the socket (A) and a plug (B) are connected toward each other, a pushing member (65) arranged at the leading end portion of a second housing (2) of the plug (B) makes t...

Positive-acting photothermographic elements suitable for use at contact speeds comprising a base layer having at least two layers thereon, which layers define a photosensitive medium comprising a photocurable composition, a reducible silver source, and a reducing system for silver ion comprising one or more components including a compound capable of reducing silver ion to silver metal, such that the reducible silver source and at least one component of the reducing system for silver ion are pres...

The invention concerns a series of novel bis-urea derivatives, nonpeptides, which show good binding affinity for the CCK-B receptor. The compounds, compositions containing them, methods of preparation, and utilities including anxiety, gastric acid secretion inhibition, and psychoses are included.

The device comprises a shielded outer cylinder (2), a shaft member (3) installed pivotally within, the cylinder (2), fins (4, 5) either of which are connected with the cylinder (2) or the shaft member (3) by means of base ends (4a, 5a) with edge ends (4b, 5b) thereof being slide contacted onto the other, and a fluid material (6) filled within the outer cylinder (2), wherein the outer cylinder (2) or the shaft member (3) is connected with a stationary member or a rotary member.

A double acting bit holder that permits bits held in it to be resharpened during cutting action to increase energy efficiency by reducing the amount of small chips produced. The holder consist of: a stationary base portion capable of being fixed to a cutter head of an excavation machine and having an integral extension therefrom with a bore hole therethrough to accommodate a pin shaft; a movable portion coextensive with the base having a pin shaft integrally extending therefrom that is insertabl...

A jar mechanism comprises an outer body member an, inner body member which is movably mounted on the outer body member, and a fluid chamber which is defined by the inner and outer body members. A resistance mechanism is in fluid communication with the fluid chamber. The inner and outer body members are moveable relative to each other between a first configuration in which the resistance mechanism resists relative movement therebetween, and a second configuration in which the resistance mechanism...

A switching element (40, 40') for use in a snap-acting electrical switch (10) has a pair of outer legs (40a, 40b; 40a', 40b') and a center leg (40c) extending in substantially the same direction from a junction portion. The outer legs have a semi-annular band portion which blend together at the junction portion and a center leg at one end of the band portion. A mounting portion extends from the other end of the semi-annular band portion and is provided with mounting apertures (40k, 40l) for plac...

A positive acting, photoimageable composition having, a photoacid generator capable of generating an acid upon exposure to actinic radiation, an organic acid anhydride polymer, an epoxy, a nitrogen-containing curing catalyst, and an optional phenol-containing monomer or polymer. A photographic element has this composition coated and dried on a substrate. A positive acting image is produced by imagewise exposing the element to actinic radiation, optionally postbaking and development with a liquid...

A a quick acting closure has two flanges. One of the two flanges has a groove for a flexible seal and the other has spaced cogs. The goal is to provide a quick acting closure in such a form that it can be used for the connection/closure of boiler or pipeline elements which can either have a round or a non-round cross section. In accordance with the invention, the two flanges are therefore connected to each other by individual clamps which are arranged at the circumference of the flanges and the ...