baber/WOPTO huggingface dataset:
Patent GB-1218704-A (GB)
Title: Lens system
IPC: G02B13/00
Filed: 1969-07-01
Abstract: 1,218,704. Lenses. INTERNATIONAL BUSINESS MACHINES CORP. July 1, 1969 [July 15, 1968], No.33044/69. Heading.G2J. A lens system, e.g. a reduction lens, comprises nine optically aligned lens elements, the first, second, fifth, eighth and ninth elements being singlet lenses, the third and fourth elements forming a first doublet, the sixth and seventh elements forming a second doublet, and a diaphragm optically aligned with the elements and positioned edjacent the fifth lens element. The first and second elements are positive meniscus lenses, the third and fourth together form a positive meniscus lens, the fifth lens may be a positive meniscus, the sixth and seventh elements together form a negative meniscus lens, the eighth element is a negative meniscus lens and the ninth element is a bi-convex lens. If desired the fifth element may be bi-concave. Optical data for two examples is given.
Patent GB-988144-A (GB)
Title: Improvements in or relating to package irradiation plant
Inventor: LANDON ERNEST ROBERT
IPC: A23L3/26
Filed: 1960-09-26
Abstract: 988,144. Irradiation plant. UNITED KING- DOM ATOMIC ENERGY AUTHORITY. Sept. 22, 1961 [Sept. 26, 1960], No. 33065/60. Heading H5R. In a plant for exposing packages to gamma radiation, the packages are carried on trolleys along rail tracks which follow a serpentine course past the radiation source, the tracks comprising parallel sections joined by curved ends, each track bending back on itself so that its curved ends are alternately inside and outside the ends of the adjacent track. In the form shown, the rail tracks are housed in a shielding cell 3, and two radiation sources 1 and 2 are provided. Two monorail tracks 5, 6 run past the radiation sources in the serpentine manner shown, track 6 lying wholly within the area of track 5. The packages are loaded at a station 9 on to trolleys 7, the method of loading being as shown in Fig. 3. Two packages 8 are loaded on to each track 5 trolley, and three on to each track 6 trolley, the loading being symmetrical with respect to the source 2. A package 8 is loaded first in the lower position on track 5, conveyed round the complete circuit, and on reaching station 9 again is transferred to the upper position, and sent round track 5 again. On once more reaching station 9, it is transferred to the lowest position on the track 6 trolley, and sent round track 6 three times, each time in a different position on the trolley.
Patent GB-1509438-A (GB)
Title: Roller assembly
IPC: E05D15/06
Filed: 1975-08-08
Abstract: 1509438 Rollers for sliding doors and windows YOSHIDA KOGYO KK 8 Aug 1975 [13 Aug 1974] 33097/75 Heading E1J A roller assembly for the bottom rail 40 of a door or window comprises a roller 13 on a spindle 25 mounted on an inner frame 12 which is mounted on an outer frame 11 by a pivot 22 so that the roller may be adjusted vertically by means of the screw 20 bearing on the adjacent transverse wall of the frame 12. The outer frame is inserted in the rail 40, located by the projections 38, 39 and recesses 43, 44 and fixed by the countersunk head of the screw 21 forcing apart legs 29, 30 (Figs. 2, 3 not shown) depending from a partition 16 of the frame 11 and so bringing projections as 35 thereon into abutment with the inner faces of the panels 41, 42. In a modification (Figs. 4, 5 not shown) the head of the screw forces apart resilient extension plates on the frame 11. Sealing strips may be carried in grooves 45. 46 in the bottom rail.
Patent GB-1443775-A (GB)
Title: Apparatus for determining three dimensional space
IPC: G09B23/04
Filed: 1973-07-12
Abstract: 1443775 Models R A MEREDITH 3 July 1974 [12 July 1973] 33165/73 Heading G5G The apparatus comprises a number of interlocking members (gear-wheels or discs) arranged in a spherical or part-spherical formation, each member bearing an identication (letter, number, name or symbol). The segments of the members also carry identifications. The movements of the members may be synchronized by friction, belts, chains or electrical means instead of teeth. A space frame or model as in Fig. 3 may also be provided having one or more helices and consisting of rods and marked connections to represent the view of space obtained by a person imagined to live in a world having cells interconnected as in the spherical model.
Patent GB-393287-A (GB)
Title: Improvements in or relating to magnet cores for use in loading coils or the like
IPC: H01F1/22
Filed: 1931-11-30
Abstract: In the process for manufacturing magnetic cores described in Specification 387,010, the alloy used is composed of 60-80 per cent of nickel and 20-40 per cent of cobalt.
Patent GB-651389-A (GB)
Title: Method of and apparatus for cleaning eggs
IPC: A01K43/00
Filed: 1948-12-30
Abstract: 651,389. Cleaning eggs. GWIN, J. M., and GWIN, D. R. Dec. 30, 1948, No. 33512. Convention date, Jan. 14. [Class 28(ii)] Eggs are cleaned by being constantly revolved against scraping edges 13 forming part of a framework of flexible or rigid strips- 26 carried by cross pieces 13. which framework overlies an upwardly moving belt 24 passing over a fixed plate 25. The motion of the belt 24 continuously rotates the eggs which are hence cleaned against the scraping edges 13. The scrapers 13 of the framework 13, 26 are secured to side pieces 10 of a support having cross-rods 11, the inclination of which support can be adjusted, the belt passing through a liquidcontaining tank at its lowest point of travel. The scrapers 13 may have bent edges, and the belt 24 may have ridges on its surface to agitate the eggs.
Patent GB-1433440-A (GB)
Title: Refrigeration compressor
IPC: F04D1/14
Filed: 1974-07-30
Abstract: 1433440 Reciprocating compressors SUNDSTRAND CORP 30 July 1974 33527/74 Heading F1N [Also in Division F4] In a refrigeration compressor comprising an annular array of pistons 39 reciprocable in cylinders 38 by a rotary cam 42, refrigerant is admitted to an annular inlet channel 70 defined between the block 35 having the cylinders 38 and an enclosing housing 30. From the annular  channel 70 the refrigerant flows through radial passages 78 and annular grooves 77 in the cylinder block 35, ports 79 in the pistons and thence from cavities within the pistons through valve controlled ports 80 into the cylinders 38. After compression within the cylinders the refrigerant is discharged through ports 90 controlled by leaf valves 91 into an outlet chamber 73 divided by a baffle 95. The baffle 95 is centrally secured by a screw 97 and overlies at its periphery the valves 91. Thus communication between the ports of the outlet chamber 73 is via the arcuate spaces between the valves 91, although the periphery of the baffle is capable of deflecting away from the block 35 to provide an increased flow area for the discharged refrigerant. The rotary cam 42 is secured to a shaft 45 coupled to an electric motor 60, the latter being disposed in a separate chamber 65 through which cool refrigerant flows from an inlet 66 to an outlet 67. Oil for lubricating the bearings 56, 57 supporting the shaft 45 is lifted from a sump 101 by an inclined bore 100 in the shaft 45. Any oil which collects in the cylinder block 35 drains through a port 108 into the inlet channel 70.
Patent GB-1255103-A (GB)
Title: Voltage clipper circuits
Inventor: JEAN-MARIE
IPC: H03K5/08
Filed: 1969-07-03
Abstract: 1,255,103. Amplitude limiters. SOC. NATIONALE D'ETUDE ET DE CONSTRUCTION DE MOTEURS D'AVIATION. 3 July, 1969 [5 July, 1968], No. 33541/69. Heading H3T. In an amplitude limiter for a square wave signal 2(a) supplied at 1, the signal is added at S1 to a reference wave 2(b) of opposite source applied at 2 so that a combined wave 2(c) is produced which decreases as the signal amplitude increases. This wave is added in S2 to a second reference wave of the opposite phase so that normally the original wave is restored 2(e) but when the signal falls through zero the path for the combined wave is blocked at K and the output (from 4) remains constant at the level of the second reference wave. The level of the reference waves may be varied, as shown the blocking circuit K is controlled by a zero level detector D2 and the summing is effected by emitter followers or operational amplifiers.
Patent GB-865376-A (GB)
Title: A separating device for detaching sheets in sheet feeding apparatus
IPC: B65H3/08
Filed: 1959-10-05
Abstract: 865,376. Feeding sheets. SPIESS, G. Oct. 5, 1959 [Oct. 14, 1958], No. 33614/59. Class 100(1) In a device for separating sheets from the top of a pile 3 comprising a suction nozzle 1 formed on the end of a piston 8 which is urged downwardly from a casing 13 by a spring 17 to engage the top sheet 2, and is raised automatically by suction when the sheet seals the face of the nozzle 1, when the piston is in the fully raised position shown, the area of the sheet 2 subjected to suction by the nozzle 1 is reduced so that the sheet can be more easily removed from the nozzle. The piston 8 has two separate bores 7, 14 which lead, respectively, to an annular recess 5 and a central recess 6 in the face of the nozzle 1, the recess 5 having a much larger area than the recess 6. When the piston 8 is at the top of its stroke, the bore 7 is vented to atmosphere through slots 11, 12, and the bore 14 is still connected to the suction line 10 through a restricted passage 16, so that the sheet 2 is only gripped lightly and can easily be removed from the nozzle 1.
Patent GB-823038-A (GB)
Title: Improvements in or relating to lawn raking devices
IPC: A01D78/00
Filed: 1956-07-26
Abstract: The device described in the present Specification is identical with that described in Specification 823,037, but the claims differ.
Patent GB-1031335-A (GB)
Title: Bolt assembly
IPC: F16B41/00
Filed: 1964-08-18
Abstract: 1,031,335. Securing bolts against loss. SLATER STEEL INDUSTRIES Ltd. Aug. 18, 1964 [Sept. 9, 1963], No. 33666/64. Heading F2H. To prevent complete removal of a bolt from a threaded bore 8, e.g. in a cable clamp 5, a recess 21 is formed at the mouth of the bore to allow for the protrusion of a detent such as a spring or, as shown, a spring-loaded pin from a radial hole 10 in the bolt when the bolt is almost unscrewed from the bore so that the detent engages an end wall 22 of the recess to prevent complete unscrewing of the bolt. The bottom 6 of the recess 21 may have an inclination greater than that of the bolt thread, Fig. 5 (not shown), so that the bolt does not rotate freely before the detent engages the end wall 22 but is restrained by friction between the detent and bottom.
Patent GB-189664-A (GB)
Title: Improvements in safety vents for electric motor cases, switch boxes, junction boxes and the like
IPC: H01H33/57
Filed: 1921-12-15
Abstract: 189,664. Electric Construction Co., Ltd., and Close, F. W. Dec. 15, 1921. Boxes and cases.-A safety vent for electric switch boxes, &c. comprises a set of annular plates spaced slightly apart by distance pieces and secured together over the opening in the casing, each plate being provided with a row or rows of holes so arranged as to form in the assembled unit longitudinal chambers in which the gas can expand. Fig. 1 shows annular plates B, separated by washers C, secured by bolts D to the casing A, and covered by a cap or bell E. The plates have slots F, Fig. 4, arranged to form concentrically curved chambers.
Patent GB-1200560-A (GB)
Title: A fastening sleeve for connecting straps
Inventor: ELFGEN GERD
IPC: B65D63/06
Filed: 1968-07-08
Abstract: 1,200,560. Fastening bale ties. G. ELFGEN. 8 July, 1968 [12 July, 1967], No. 33727/68. Heading B6P. A device for fastening together the ends 1, 2 of a strap, especially a non-metallic strap, for tying up e.g. a bundle of cables, comprises two parts 3, 4 toothed or roughened at their inner surfaces 9, 10 for engaging the strap ends and each part having an extension 5, 6 for entering an aperture 11, 12 in the other member when the parts are interengaged to grip the strap ends. Conical or otherwise inclined surfaces 7, 8 may be provided on the extensions, or similar surfaces may be provided in the apertures 11, 12 to move the inner surfaces 9, 10 towards one another as the strap parts are engaged. The strap parts may be angle shaped or may have a generally cylindrical shape (Fig. 1, not shown). Further, each part may have several extensions 5 or 6 and a corresponding number of apertures. The pressing surfaces 9, 10 may have interengaging teeth and recesses, Fig. 4 (not shown), extending parallel to the longer dimensions of the parts.
Patent GB-962702-A (GB)
Title: Process for the production of polymers
IPC: C08F2/22
Filed: 1962-06-20
Abstract: Polymerizable compounds containing carbon-carbon double bonds are polymerized by emulsifying them to form an emulsion of the water-in-oil type by means of a free radical-forming catalyst and an emulsifier consisting of a copolymer containing 8 to 62% by weight of carboxyl groups in at least 20% of which the hydrogen atoms are replaced by -(CH2)nOH, -CH(CH3)CH2OH, or -(-CH2CH2O)nH groups in which n is 2, 3 or 4, e.g. copolymers of acrylic, methacrylic, crotonic itaconic maleic or fumaric acids, maleic anhydride, or half-esters of maleic or fumaric acid esterified with glycols, ether alcohols or alkylene oxides.  Polymerizable monomeric materials specified are styrene, alkyl styrenes, divinyl benzene, vinyl acetate, propionate and butyrate, methyl acrylate, methyl, ethyl and cyclohexyl methacrylates, vinyl and vinylidene chlorides, acrylonitrile, butadiene, isoprene, dimethyl butadiene, chloroprene, glycol dimethacrylate, monocyclohexyl maleate and a glycol/maleic acid polyester.  Polymerization catalysts specified are azodiisobutyronitrile, lauroyl and benzoyl peroxides, and percarbonates, which may be used in conjunction with dimethyl-p-toluidine or cobalt naphthenate, and potassium persulphate, which may be used in conjunction with sodium pyrosulphite.  The products of polymerization contain entrapped water, which may be removed, either during or after polymerization, to yield porous materials.  The examples describe the use of copolymers of isoprene and monocyclohexyl maleate or fumarate esterified with propylene oxide and a copolymer of styrene and monododecyl maleate esterified with ethylene oxide as emulsifiers in the reversed emulsion polymerization of: (1) styrene; (2) methyl methacrylate; (3) styrene + a maleic acid/glycol polyester; (4) cyclohexyl methacrylate + divinyl benzene; (5) styrene + monocyclohexyl maleate; and (6) styrene + methylacrylate. Specification 928,621 is referred to.
Patent GB-1198854-A (GB)
Title: Antioxidant Compositions
Inventor: CHIDDIX MAX EUGENE
IPC: C09K5/00
Filed: 1967-07-24
Abstract: 1,198,854. Anti-oxidant compositions; preparation of sulphones. GAF CORP. 24 July, 1967 [5 Aug., 1966], No. 33849/67. Heading C2C. [Also in Divisions B1, C3 and C5] An anti-oxidant composition comprises a phenolic anti-oxidant and a sulphone compound of general formula where R 1  is a C 1  to C 25  alkyl, alkylene, cycloalkyl, aryl, aralkyl, alkylaryl or heterocyclic radical or a -(CH 2 ) n -COOR 2  radical where n is 1 to 4, R 2  is a C 1  to C 25  alkyl, alkylene or cycloalkyl radical, A is a C 1  to C 30  alkyl, alkylene, cycloalkyl, aryl, alkylaryl, aralkyl or heterocyclic radical or in which R is hydrogen or alkyl, B is hydrogen or -SR 1 , the weight ratio of the phenolic anti-oxidant and the sulphone compound being between 1 and 100 parts of the phenolic antioxidant to between 100 and 1 part of the sulphone compound, and the two components of the anti-oxidant composition preferably each being used as 0À01 to 5 parts per 100 parts organic material to be protected. Sulphones of the above formulae are prepared (1) by reaction of a mercaptan with (a) an alkenyl hydroxyalkyl, (b) a bis-hydroxyalkylsulphone, or (c) a sulphalone, dihalosulphalone or dihydrobenzothiophene, or (11) by esterification.
Patent GB-918369-A (GB)
Title: Electrical terminal
IPC: H01B17/30
Filed: 1961-09-21
Abstract: 918,369. Binding-posts. SAGE, L. R., and SAGE, D. F. Sept. 21, 1961, No. 33930/61. Class 38 (1). An electric lead-through or stand-off terminal comprises a bush 16 of deformable material, e.g. P.T.F.E., moulded in situ about a spigot 10 as in Fig. 1, the bush being inserted into a hole 20 in a chassis 21 until stopped by the flange 24. The spigot 10 is then pushed down through the bush until its flange 12 abuts the bush flange 24, a bulbous portion 14 protruding beyond the end 22 of the bush and preventing the withdrawal of the spigot from the bush, and the lower position of the tapered portion 13 causing radial swelling of the bush, thus preventing the removal of the latter from the hole and forming a hermetic seal.
Patent GB-1369382-A (GB)
Title: Electrical relays
IPC: H03K17/723
Filed: 1972-07-20
Abstract: 1369382 Semi-conductor switching circuits ITT INDUSTRIES Inc 20 July 1972 [27 July 1971] 34013/72 Heading H3T [Also in Divisions G1 and H1] In an electrical relay arrangement, an input signal is rectified by a bridge rectifier and applied to a constant current circuit which supplies current to an oscillator feeding the primary winding 2 of a transformer 1. The secondary winding 3 of the transformer is connected to a trigger circuit feeding the output terminals of the relay. The input and output circuits of the relay arrangement to the left and right respectively of the line 4 are housed in separate insulating parallelepipedal boxes with the transformer windings adjacent juxtaposable faces.
Patent GB-1196995-A (GB)
Title: Supersensitised Silver Halide Emulsions
IPC: C09B23/06
Filed: 1968-07-17
Abstract: 1,196,995. Carbocyamine dye. FUJI SHASHIN FILM K.K. 17 July, 1968 [17 July, 1967], No. 34038/68. Heading C4P. [Also in Division G2] The carbocyanine dye of the Formula (IA) is prepared by heating under reflux 2-(#- anilino - vinyl) - 1,3,3,5 - tetramethyl - 3H- indolenium iodide in a solution of nitrobenzene and acetic anhydride and mixing the solution prepared with anhydro-5,6-dichloro-1-ethyl-2- methyl - 3 - (3 - sulphopropyl) benzimidazolium hydroxide and triethylamine.
Patent GB-385103-A (GB)
Title: Improvements in or relating to the washing or other liquid treatment of cellulose acetate or other derivatives of cellulose
IPC: C08B3/28
Filed: 1931-12-09
Abstract: Cellulose derivatives in powdery or flaky form are subjected to washing or other liquid treatment while passing through a series of cells in one direction, the water or other liquid passing continuously through the cells in countercurrent direction.  The process is applicable to the treatment of cellulose acetate or nitrate or other cellulose esters or ethers.  Liquid treatment may comprise treatment with solutions of soluble salts of alkali or alkaline-earth metals, or solution of aluminium salts, e.g. aluminium chloride.  Again, the cellulose derivative may be <PICT:0385103/IV/1> <PICT:0385103/IV/2> <PICT:0385103/IV/3> <PICT:0385103/IV/4> treated in the first few cells with boiling water, then to hot mineral acid solution in other cells, and finally to washing in the last cells.  A suitable apparatus for working up cellulose acetate from its reaction mixture comprises an assembly of a supply tank, drainer, and washer. On the shaft 6, common to the drainer 3 and washer 5, there are mounted agitating arms 7 and arms carrying paddles 9 which latter make an angle of contact of about 30 DEG  with the wall 10 of the drainer, so that the cellulose acetate which is picked up by the paddles 9 tends to slide down the shoot 4 into the washer.  The reaction mixture is introduced through the opening 2 and the acid liquor removed through a grating 12 and caught in a receptacle 13. The washer is divided into a series of cells 14 by means of the partitions 15 of which one side 16 is higher than the other side 17. Arms 18 on the shaft 6 are adapted to propel the cellulose acetate across the cell where it is picked up by means of paddles 21 which make an angle of contact of about 30 DEG  with the rear walls of the cells. When the paddles get above the level of the partitions 15, the cellulose acetate slips down into the next cell where the process is repeated.  The height of the partitions gradually increases in the direction of travel of the solid material so that the water or other liquid introduced into the last cell flows countercurrent to the solid.  The Specification as open to inspection under Sect. 91 refers to the washing or other treatment of granular, flaky, or powdered solids in general.  This subject-matter does not appear in the Specification as accepted.
Patent GB-1235238-A (GB)
Title: Aqueous dispersions
Inventor: MCDONALD JOHN WILLIAM
IPC: D21H19/20
Filed: 1969-07-07
Abstract: 1,235,238. Coatings. E.I. DU PONT DE NEMOURS & CO. 7 July, 1969 [8 July, 1968], No. 34212/69. Heading B2E. [Also in Division C3] An aqueous coating composition comprises (1) 30-70% by wt of solids of a vinylidene chloride polymer or copolymer containing at least 70% by wt of vinylidene chloride, (2) 10-35% of an ethylene/vinyl acetate copolymer containing 60-82% of ethylene, (3) 5- 35% of a hydrocarbon wax and optionally (4) up to 30% of a polyalkylacrylate, a copolymer of ethylene and an unsaturated acid, e.g. methacrylic, containing 55-97% of ethylene and having 5-75% of the acid groups neutralised or a glycerol ester of polymerised rosin, said dispersion having a solids content of 40-65% by wt. Component (2) is preferably ethylene/vinyl acetate and (3) a petroleum wax. The dispersions are used to coat paper products or polyolefine films.
Patent GB-1521683-A (GB)
Title: Heat exchangers
IPC: F28F1/42
Filed: 1975-11-03
Abstract: 1521683 Heat exchanger BABCOCK & WILCOX Ltd 3 Nov 1975 [2 Aug 1974 9 Aug 1974] 34270/74 and 35206/74 Heading F4S A heat exchanger comprises passageways 1 (shown end on in Fig. 1). Each passageway comprises two plates 3a, 3b having longitudinal edges connected together as shown at 6, 7. The facing plate surfaces at the interior of each passageway are coated with vitreous enamel to give protection against corrosive gas. For convenience of manufacture, the passageways 1 are built up from units 2, each as shown in Fig. 1 in unbroken lines. Each unit comprises studs 10, in the form of circular rods, joining together and extending through plates 3a and 3b of two adjacent passageways. Each stud 10 is a close fit in openings in the plates and fixture of the studs is assured by the coating of vitreous enamel which is also applied to the stubs 11 of the studs. The edges of plates forming each passageway are connected either by welds 12 or by pins and a sealant. Banks A, B. . . of the passageways are assembled between end walls 20, Fig. 2. Plenum chambers (not shown) are provided respectively above and below upper and lower boundaries 25, 26 to provide for gas flow through the passageways 1. Air inlet 21 and outlet 22 communicate with the spaces between the passageways. As indicated by zones at 10<SP>1</SP>, the studs 10 extend over only a portion of the height of each bank A, B ...