Abstract: A waterstop of elastic deformable rubbery material used in concrete structures with a substantially flat middle portion and enlarged side wing anchor sections with elastic or metal anchor strips and sponge material attached to the outer edge of the strips and injection tubes from outside the concrete to the sponge material. The method of installing a waterstop in concrete and after setting injecting a fluid curable or settable material to admit the fluid to the concrete matrix in the region of the sealing extensions.
Abstract: An installation for burning waste solvents is characterized by the use of a concentrically constructed nozzle by means of which the waste solvents and a mixture of compressed air and fuel may be burned simultaneously. The compressed air/fuel mixture may either serve to warm up the incinerator prior to the introduction therein of the waste solvents or may be used to support the incineration of waste solvents when the latter have a low heat value.
Abstract: There is disclosed a separator device for singularly passing to a transport member a rectangular sheet of material from a stack of such sheets accommodated in a storage cassette having a rectangular slotted sheet discharge opening. The cassette is provided with a hold-down plate for pressing the uppermost sheet against a bulge forming means disposed adjacent the discharge opening and comprised of a pushing member. The bulge forming means is controlled by a first cam disc adapted to perform a reciprocating movement to engage the leading edge of the uppermost sheet whereby such sheet is partly released from the stack by bulging at the discharge opening.
Type:
Grant
Filed:
October 20, 1975
Date of Patent:
August 9, 1977
Assignee:
N. V. Optische Industrie "De Oude Delft"
Abstract: This invention provides a gellant which is a synthesized complex of a fluorine-containing trioctahedral smectite-type clay and an amorphous occluded phase selected from the group consisting of lithium hydroxide, sodium hydroxide, magnesium hydroxide, lithium oxide, sodium oxide, magnesium oxide, and mixtures thereof, the gellant having mole ratios of Li, Na, Mg and Si, expressed as oxides, and F of:aLi.sub.2 O:bNa.sub.2 O:cMgO:dF:8SiO.sub.2 (I)where 0.25.ltoreq.a<1.1, 0.ltoreq.b<0.60, 4.75<c<5.85, 0.5<d.ltoreq.3.5, 0.60.ltoreq.a+b<1.25, and 6.0 <a+b+c<6.65.
Abstract: A process for the production of perfume compositions, perfumed materials or perfumed articles which includes admixing perfume components usual for this purpose and 4-methoxy benzonitrile and the compositions per se.
Type:
Grant
Filed:
February 3, 1976
Date of Patent:
August 9, 1977
Assignee:
Naarden International N.V.
Inventors:
Harmannus Boelens, Hendrik J. Takken, Petrus C. Traas
Abstract: A process for removing oil base mud adhering to cuttings obtained in well drilling operations, comprising contacting the cuttings with a solvent consisting essentially of a mixture of ethyleneglycol monoisobutyl ether, diethyleneglycol monobutyl ether acetate, ethyl butyl ketone, ethyleneglycol monobutyl ether, ethyleneglycol monomethyl ether acetate, diethyleneglycol diethyl ether, and diethyleneglycol mono-n-hexyl ether, together with paraffin oil, in relative proportions of from 10:90 to 80:20. This forms a mixture of oil and solvent on the cuttings which is readily removable; as by washing or centrifuging or a combination of the two.
Abstract: An optical apparatus is disclosed which includes at least two optical systems for reproducing a plurality of data images on a common photographic plane. The systems are arranged to allow any desired orientation of the data images on the plane.
Type:
Grant
Filed:
December 15, 1975
Date of Patent:
August 9, 1977
Assignee:
N. V. Optische Industrie "De Oude Delft"Delft
Abstract: A recording process including image stabilization comprising the steps of:1. image-wise exposing to active electromagnetic radiation of a recording material containing in a recording layer a dye precursor compound and at least one photosensitive organic polyhalogen compound capable of producing photoradicals and a dyestuff with said dye precursor compound when exposed with ultraviolet radiation and/or visible light, and2. heating the photoexposed recording material thereby transforming the non-decomposed polyhalogen compound into a non-photosensitive substance by reaction with at least one stabilizing substance selected from the group consisting of triphenylamine,A soft base containing an element of the group consisting of phosphorus, arsenic, antimony, bismuth, selenium, and tellurium, and an .alpha.,.beta.-ethylenically unsaturated compound in which at least the .alpha.
Type:
Grant
Filed:
September 3, 1976
Date of Patent:
August 2, 1977
Assignee:
AGFA-GEVAERT N.V.
Inventors:
Hendrik Emmanuel Kokelenberg, Rafael Pierre Samijn, Jozef Willy Van den Houte, Robert Joseph Pollet
Abstract: A system for electro-optically correlating two signals. A running representation of the amplitude variation of a first signal is observed through a mask representing the amplitude variation of a second signal. Means are provided for integrating the resultant light signal and for generating an electrical output signal representing the correlation function of the first and the second signal.
Type:
Grant
Filed:
October 20, 1975
Date of Patent:
August 2, 1977
Assignee:
N. V. Optische Industrie "De Oude Delft"
Abstract: A sugar cane harvester having walls defining a channel through which harvested sugar cane is to be conveyed. Power-rotated conveyor rollers extending across the channel move the cane through the channel. At least one of the rollers is in the form of a drum of expanded metal which allows escape from the cane of earth and rocks and permits inflow of air to trash removal apparatus.
Abstract: Carrier beads for use in an electrostatographic developer mixture comprise a glass core or iron-containing metal core enveloped with a coating of a copolymer of N-vinylcarbazole, trialkoxyvinylsilane and/or triacetoxyvinylsilane and optionally one or both of the monomers of the group consisting of C.sub.1 -C.sub.4 alkyl (meth)acrylate and styrene.
Type:
Grant
Filed:
April 16, 1975
Date of Patent:
August 2, 1977
Assignee:
AGFA-GEVAERT N.V.
Inventors:
Pierre Richard De Roo, Walter Frans De Winter, Jan Jozef Priem, Yvan Karel Gilliams
Abstract: Crop gathering table for a grain combine has belts positioned to convey crop rearwards between a cutterbar and an auger. Each belt is caused to run straight by adjustable guide rollers located between the upper and lower runs of the belt and engaging the edge portions of the inner surface of the belt in its lower run and deflecting said edge portions downwards. The guide rollers are angularly adjustable by a lever mechanism actuable from the front of the table while the belts are being driven.
Type:
Grant
Filed:
December 17, 1975
Date of Patent:
August 2, 1977
Assignee:
Massey-Ferguson Services N.V.
Inventors:
Jean Arnould, James B. McNaught, Jose Andiano
Abstract: Proteinaceous raw materials, possibly mixed with starchy raw materials are extruded into an expanded dry feed or foodstuff by extruding a starting mix with at least 12 but not more than 20 percent by weight of moisture in a short time, while keeping the extruder permanently filled with raw material mixture. Preferably not more than 7 percent of fat should be present. The inventive apparatus for extruding this material has grooves in the extrusion casing extending in longitudinal direction, and the extrusion screw ends at the outlet side in a nose cone. Preferably one pitch length is present between a screw seal and the feed inlet, and also one pitch length is present between the feed inlet and a compression section of the screw.
Abstract: Image-receiving material for the production of photographic copies in a dry manner with a layer containing a nonlight-sensitive silver salt and a phthalazinone compound corresponding to the following general formula : ##STR1## wherein : R represents 1. an aliphatic group including a cycloaliphatic group and such groups in substituted form,2. an aryl group including a substituted aryl group,3. a heterocyclic group including a substituted heterocyclic group, or4. an acyl group.
Type:
Grant
Filed:
December 31, 1974
Date of Patent:
July 26, 1977
Assignee:
AGFA-GEVAERT N.V.
Inventors:
Jozef Frans Willems, Antoon Leon Vandenberghe
Abstract: This invention is directed to an apparatus comprising a suction device having at least one nozzle for sucking suspendible material as a suspension from a bed of said material, means for producing suction in the nozzle and means for moving the nozzle horizontally and vertically in relation to said bed, and the invention relates more particularly to a method of controlling the horizontal and vertical movements of the suction device by utilizing as control signals the variations of the solids concentration and volume of suspension sucked through the nozzle per unit of time, and the invention also comprises an apparatus having means for carrying the method into effect.
Type:
Grant
Filed:
May 5, 1975
Date of Patent:
July 26, 1977
Assignee:
Ingenjorsfirman N.A. Sandbergs Industrikonstruktioner AB
Abstract: A car seat is provided with a roll-up belt collecting apparatus adapted to relieve tension on the belt. The apparatus has a mechanically released locking means actuated in response to movement of a back rest disposed in the seat. The apparatus is inexpensive to produce and highly reliable in operation.
Abstract: A method is described of developing a photographic silver halide element containing developable silver halide by means of a silver halide developing composition, comprising as development activator a derivative of a polyethylene glycol or a C.sub.1 -C.sub.5 monoalkyl ether thereof corresponding to the formula:R.sub.1 O(CH.sub.2 CH.sub.2 O).sub.n X--A--Y--R.sub.2whereinR.sub.1 is hydrogen, C.sub.1 -C.sub.5 alkyl or the group X--A--Y--R.sub.2n is an integer of at least 4X is CO, SO.sub.2, CONH or, when R.sub.1 is X--A--Y--R.sub.2 may be a chemical monovalent bond,A is alkylene or arylene,Y is a sulphur or selenium atom, andR.sub.2 is an alkyl group.
Type:
Grant
Filed:
January 13, 1976
Date of Patent:
July 26, 1977
Assignee:
AGFA-GEVAERT N.V.
Inventors:
Robert Joseph Pollet, Francis Jeanne Sels, Camille Angelina Vandeputte
Abstract: A cultivator or rotary harrow has rotatable soil working members with tines that are driven to rotate about upwardly extending axes. Each tine has a fastening portion that is secured to a support, and a lower soil working portion. In one embodiment, the center lines of the two portions substantially coincide. Alternatively, the lower part of the soil working portion can be an offset straight part that extends outwardly or the lower part can be curved outwardly with respect to the remainder of the soil working portion. The opposite sides of the lower part of the soil working portion gradually flattens and broadens towards the lowermost tip.
Type:
Grant
Filed:
November 19, 1975
Date of Patent:
July 26, 1977
Assignee:
C. van der Lely N. V.
Inventors:
Ary van der Lely, Cornelis Johannes Gerardus Bom
Abstract: In combination with a pump having a variable rate of flow, a device for varying such rate of flow is governed by the pressure generated by the pumps through a variable transmission mechanism the ratio of which depends on the said rate of flow, whereby the power output of the pump can be maintained at a predeterminate value. The device can be used with two pumps for limiting the total power output of both pumps, as being governed by the average of the two pressures.