baber/WOPTO huggingface dataset:
Patent GB-1382078-A (GB)
Title: Allpass phase-shift circuits
IPC: H03H11/16
Filed: 1972-11-15
Abstract: 1382078 Transistor circuits SONY CORP 15 Nov 1972 [19 Nov 1971] 52818/72 Heading H3T An allpass phase shifter comprises an input transistor Q 104  with an R.C. network C 101 , C 102 , C 103 , R 101 , R 102 , R 103  coupled between its collector and emitter, the output from the network being coupled to an output transistor Q 105  by way of a shunt compensating network R 200 , C 200 . Two similar networks (300, 400) may be coupled to the same input transistor, Fig. 19 (not shown), and the networks may include further RC sections, Figs. 20, 21 (not shown).
Patent GB-1094960-A (GB)
Title: Improvements in or relating to semiconductor devices
IPC: H01L23/02
Filed: 1965-12-21
Abstract: 1,094,960. Semi-conductor devices. CKD PRAHA OBOROVY PODNIK. Dec. 21, 1965 [Dec. 22, 1964], No. 54056/65. Heading H1K. The devices described are semi-conductor diodes in which the semi-conductor element is held under spring pressure between electrode plates. In each, the spring is held in compression by a two-part structure bonded to the base 1 of the housing. In the diode of Fig. 2, one of these parts 7<SP>1</SP> is preformed with a groove 9<SP>1</SP> in a strengthened rim and is bonded to the base. The semi-conductor element and electrode assembly are placed in position, an insulating washer 5 placed on the upper electrode plate 3 (anode), and the spring washers 6 put on. The second compression part 8<SP>1</SP> is slipped over the first part and controlled pressure is applied to compress the spring to the desired degree. At this point a tool 107 (Fig. 3, not shown), is used to impress the walls of the second part 81 into the groove 9<SP>1</SP> on the first part. This maintains the spring pressure in the completed device at the predetermined value since the impressing tool operates at exactly the height of the centre of the symmetrically formed groove 9<SP>1</SP>. A polytetrafluoro-ethylene ring 15 is placed in the groove now formed in the second part and the cover of the container then resistance-welded to the lip 12 on the first compression part 7<SP>1</SP>. The ring 15 acts as a seal to prevent contaminants formed in this process from reaching the semiconductor. The diode of Fig. 1 (not shown), is similar but here the preformed groove is in an annular second compression part (8) fitting within the first part (7) which is fixed to the housing and the walls of which are impressed into the groove to maintain the predetermined spring pressure. It is suggested that, in general, methods other than beading one part into a groove in the other may be used to retain the two parts in their desired relative positions.
Patent GB-1600500-A (GB)
Title: Method of feeding steam into a continuous open flame
IPC: F23C99/00
Filed: 1977-12-29
Abstract: Although it is known to improve the efficiency of combustion by feeding steam into an open flame, the present invention achieves an extraordinary increase in efficiency by feeding steam from the vicinity of the burner directly into the flame at a controlled rate such that the steam exceeds 15% (and preferably is 60% to 90%) of the oxygen theoretically required for complete combustion, but less than the rate at which the flame would be extinguished.
Patent GB-1433160-A (GB)
Title: Multistage switching networks for use in telecommunications exchanges
IPC: H04Q3/00
Filed: 1973-11-22
Abstract: 1433160 Automatic exchange systems PLESSEY CO Ltd 13 Sept 1974 [22 Nov 1973] 54200/73 Heading H4K A switching matrix comprises at each crosspoint a two-stage switching network whose inlets are multiplied to a row multiple and whose outlets are multiplied to a vertical multiple. The matrix is of particular interest in the context of a group selector to and from which sets of 15 trunks are connectible. Easy expansion of the matrix is catered for by means of plug and jack connectors. Fig. 4 depicts the simplest case where each box ABC comprises a set of A and B stage switches which are linked directly and via an overflow stage C.  The basic crosspoint network is shown at Fig. 2. Each A and B switch is a 4 x 5 reed relay matrix. A set of 15 trunks is terminated at corresponding inlets of corresponding A switches in the 15 planes P1-P15. The arrangement caters for 16 such sets. A 16 set block of trunks is accommodated similarly at the outlets of the B switches. In any plane each A switch has direct access to all the B switches of the same plane and via a C switch to all the B switches in four other planes. In another arrangement (Fig. 3, not shown) one or more blocks like Fig. 2 have the outlets of their A switches (which of course are the same as the inlets of their B switches) multiplied on a one-to-one basis with those of the Fig. 2 block. The latter's C switches serve all the additional blocks. The arrangement is equivalent to making each A and B switch of size 8 x 5 or 12 x 5 &c. rather than 4 Î 5 (Fig. 3a, not shown). Fig. 5 shows a matrix whose crosspoints are of Fig. 3 type where boxes AB2, AB3 represent the additional blocks of switches (N represents the number of blocks per crosspoint and M the number of crosspoints per row or per column). The array caters for a grand total of 12 Î 16 sets, each of 15 trunks.
Patent GB-1495979-A (GB)
Title: Flame retardant polycarbonate composition
IPC: C08K5/36
Filed: 1974-12-16
Abstract: 1495979 Flame-retardant polycarbonate compositions GENERAL ELECTRIC CO 16 Dec 1974 [28 Dec 1973] 54243/74 Heading C3R A flame-retardant composition comprises an aromatic polycarbonate and an alkaline earth metal salt of a halogenated methane sulphonic acid. The salt is preferably present in an amount of from 0À01 to 10À0 weight per cent based on the polycarbonate. An alkali metal salt of the halogenated methane sulphonic acid may also be present. The polycarbonate is preferably derived from bisphenol A, and various salts are specified, e.g. calcium trifluoromethane sulphonate optionally with sodium trifluoromethane sulphonate.
Patent GB-1160809-A (GB)
Title: Improvements in and relating to the Thermal Treatment of Goods in vacuo
IPC: C21D1/773
Filed: 1967-11-29
Abstract: 1,160,809. Heat-treating metallic workpieces. BALZERS PATENT UND BETEILIGUNGS A.G. Nov.29, 1967 [Dec.20, 1966], No.54274/67. Heading C7N. Metallic workpieces 14 are annealed in vacuo in a furnace 1, then introduced, e.g. downwardly through a communicating valve 10, into an empty quenching chamber, e.g. into a basket 15 inside the inner wall 13 of a vessel 11, into which subsequently the quenching fluid 24 in a storage reservoir is introduced by the application of pressure. The storage reservoir may be the space between the double walls 12 and 13 of the vessel 11, connected to a compressed air pipe 22 and communicating with the inside of the chamber via one or more connecting ducts 16, 17, and 18, opened and closed by valves 19 which may be operated through linkages 21 by hydraulic or pneumatic jacks 20. Alternatively, the reservoir (35, Fig. 2) may be separated from the quenching container (13). The workpieces may be introduced into the chamber by releasing them from a holder 8 e.g. by actuating lever 9 to let them drop.
Patent GB-1084660-A (GB)
Title: Folding carton of rectangular section
IPC: B65D5/60
Filed: 1965-12-30
Abstract: 1,084,660. Boxes. LITHOGRAPHIE . & CARTONNAGE A.G. Dec. 30, 1965 [Dec. 30, 1964], No. 55315/65. Heading B8P. A tubular box for powder or liquids is foldedup from a cardboard blank 1 to which is glued internally a paper foil, plastics &c. lining 2 which extends only as far as lines 3 parallel to the top and bottom edges of the blank, the ends of the box being closed by flaps 15-18 having fold lines formed by extensions of fold lines 4, 5 comprising the edges of the box and diagonal fold lines 21, 22. Cut extensions 6 0 , 7 0  of fold lines 6, 7 forming the other edges of the box separate the end flap 18 from its adjacent flaps. The lining 2 is glued over a triangular area 27 only to the flap 18, adjacent triangular areas 28, 29 remaining unsecured. A line of perforations 24 separates the flap 18 into two areas 18a, 18b. To seal the end of the box, the two opposite triangular portions 15a, 17a of the flaps 15, 17 are turned inwards, thus folding these flaps along the lines 21. 22, so that the flap 16 can be folded down on top, Fig. 2 (not shown). The unsecured triangular areas 28, 29 of the lining 2 are accordingly folded inwards along lines 25, 26 over the central secured lining area 27, to overlap at (32), Fig. 2 (not shown). Finally, the area 28 of the flap 18 above the perforated line 24 is glued on top of the flap 16. To open the box, the flap 18 is torn along the line of perforations 24, and folded outwards, Fig. 3 (not shown), the torn line forming a tongue (18a). The remaining flaps 15, 17 are then folded outwards. The box can be reclosed by folding the flaps 15-18 inwards and inserting the tongue (18a) through a, slot 23 in the flap 16.
Patent GB-1153670-A (GB)
Title: Isoquinoline Derivatives and preparation thereof
Inventor: FERRARI GIORGIO
IPC: C07D471/04
Filed: 1967-12-05
Abstract: 1,153,670. Pyrrolo-isoquinolines. SIPHAR S.A. 5 Dec., 1967 [7 Dec., 1966], No. 55371/67. Heading C2C. Novel pyrrole [2,1-a] isoquinolines of the general Formula I in which the pyrrole ring may be unsaturated or saturated, R<SP>1</SP> is a hydrogen atom or a carboxyl or esterified carboxyl group, R<SP>2</SP> is an alkyl, cycloalkyl, aryl, carboxyl, esterified carboxyl, carboxymethyl, esterified carboxymethyl, carboxyamide or substituted carboxyamide group, R<SP>3</SP> is a hydrogen atom or a carboxyl or esterified carboxyl group, or R<SP>2</SP> and R<SP>3</SP> when taken together may form the anhydride of the corresponding dicarboxylic acid, and salts and addition compounds thereof, with pharmacologically acceptable organic or inorganic bases or acids, are prepared by condensing a substituted α-halo carbonyl compound of the formula R<SP>3</SP>-CHXCO-R<SP>2</SP> where X represents a halogen atom, with an appropriately substituted 3,4-dihydro isoquinoline derivative, if desired subjecting the cyclization product so obtained to appropriate transformations of the substituent groups to obtain the desired compound of Formula I and, if desired, subjecting the compound to catalytic hydrogenation to obtain the corresponding pyrrolidene compound. Pharmaceutical compositions comprising a compound of Formula I as active ingredient are administered orally, parenterally or rectally and have hypotensive, sympathicolytic and psychotropic activity.
Patent GB-1099786-A (GB)
Title: Improvements in or relating to yarns
IPC: D02G3/32
Filed: 1965-12-31
Abstract: A synthetic multifilament yarn has filaments of different deniers, with at least one filament having a denier greater than 6 and is crimped by twisting, heat setting and untwisting - for example by false twisting.  The yarn, which may be composed of a polyamide, polyester or a polyolefin, may be covered - for example by core-spinning or by wrapping - with staple fibres of wool, cotton, regenerated cellulose, or polyacrylonitrile, and/or plied with a further similar multifilament yarn.  In examples the yarn has 2-4 filaments of a denier between 8 and 20 and 12-20 filaments of a denier between 2 and 5.  Individual filaments of different cross-sections may be used.  Yarns consisting of trilobal filaments or containing at least one hollow filament can be used.  The plying and covering steps may be carried out on a ring-twister, or an up-twister with or without a hollow spindle.
Patent GB-554948-A (GB)
Abstract: 554,948. Brushes. PHILIPS LAMPS, Ltd., and DAVIS, C. W. V. Feb. 20 1942, No. 2300. [Class 19] A cleaning device particularly applicable for removing magnetic particles from difficultly accessible regions comprises steel bristles 12 embedded in a brass disc 20 so that their ends abut against a permanent magnet 11 pressed forward in a holder 10 by a spring 21. In another form, the magnet is in the form of a hollow cylinder, and a handle is screwed into an end disc at one end of the holder. In other forms, the bristles are helically arranged around the holder, and a number of magnets are used, instead of a single one.
Patent GB-1275916-A (GB)
Title: Dynamo electric machines
Inventor: CROSS DENNIS ROWLAND
IPC: F04D29/28
Filed: 1968-11-22
Abstract: 1275916 Dynamo-electric machines having fans JOSEPH LUCAS (INDUSTRIES) Ltd 23 Oct 1969 [22 Nov 1968] 55518/68 Heading H2A [Also in Division F1] In a dynamo-electric machine, e.g. an alternator, having rotatably mounted in a casing 11 a rotor shaft upon a portion 12 of which extending from the casing is mounted a rotatable fan 15 having radially extending blades 17 which include respective axially extending portions 18, flexure of the blades is resisted by a spring steel backing disc 19 mounted rotatably on the shaft portion and engaging the extremities of the blades remote from the axially extending portions. To effect this the disc 19 is made in a convex shape.
Patent GB-1322930-A (GB)
Title: Benzimidazo 2,1-b quinazolin derivatives as immuno suppressants
IPC: C07D487/04
Filed: 1970-11-23
Abstract: 1322930 Benzimidazo[2,1-b]quinazolinones ELI LILLY & CO 23 Nov 1970 [24 Nov 1969] 55621/70 Heading C2C The invention comprises compounds of formula wherein R<SP>6</SP> ... R<SP>9</SP> and R<SP>11</SP> ... R<SP>14</SP> are each H, halogen, C 1-4  alkyl or alkoxy, NO 2 , NH 2 , carboalkoxy or CF 3 , or a pair of adjacent R groups may form a fused benzene ring; and R<SP>10</SP> is H, C 3-5  epoxyalkyl, -(CH 2 ) p -Z or -(CH 2 ) n CO-Y, where p is 1-4, Z is C 1-4  alkoxy, CO 2 H, carboalkoxy or di-(C 1-4  alkyl) amino, n is 0-4 and Y is carboxy-C 1-4 -alkyl, carboalkoxy-C 1-4 -alkyl, Ph or naphthyl (either of which is optionally substituted by C 1-4  alkoxy, halogen, NO 2 , NH 2 , CO 2 H or carboalkoxy), C 1-4 - alkylphenyl or trifluoromethylphenyl, with the limitations that when Y is carboxy-C 1-4 -alkyl or carboalkoxy-C 1-4 -alkyl, n is 0 or 1 and when Y is naphthyl or substituted naphthyl, n is 0; provided that when R<SP>10</SP> is H at least one of R<SP>6</SP> ... R<SP>9</SP> and R<SP>11</SP> ... R<SP>14</SP> is other than H, R<SP>7</SP>, R<SP>12</SP> and R<SP>13</SP> and one of R<SP>8</SP> and R<SP>10</SP> is Me, and any of R<SP>6</SP> ... R<SP>14</SP> is Me when any other of R<SP>6</SP> ... R<SP>14</SP> is other than H or Me. Also described are compounds wherein R<SP>10</SP> is C 1-12  alkyl, C 3-5  alkenyl, C 2-16  alkanoyl, benzyl, (C 3-10  cycloalkane) carbonyl, (C 7-12  bicycloalkane)carbonyl, or (C 7-12  bicycloalkene)carbonyl. In examples, these compounds are prepared by (1) reacting together a 2-X-benzimidazole where X is NH 2 , Cl, SH or SMe, with an anthranilic acid, ester or acid chloride, or (2) reacting a compound where R<SP>10</SP> is H (or its sodio-derivative) with an R<SP>10</SP>-halide or -sulphate. 2,4,7 - Trichloro - 5,6 - dimethylbenzimidazole is prepared by reacting 2-mercapto-5,6-dimethylbenzimidazole with Cl 2 . Immunosuppressant compositions for parenteral administration comprise compounds of the above formula as broadly described above, subject to the given limitations on Y, and to further limitations regarding the number of substituent groups in general, and the number of Me or Cl groups in particular, which may be present, but the proviso is not applicable.
Patent GB-1400750-A (GB)
Title: Welded polyester bags
IPC: B65D30/00
Filed: 1972-12-07
Abstract: 1400750 Bag for shrink wrapping HOECHST AG 7 Dec 1972 [7 Dec 1971] 56423/72 Heading B8K A bag comprises a biaxially stretched tubular polyethylene terephthalate film with a bottom weld. The bottom weld may be as shown in Fig. 2 or curved (Fig. 1) and may have a hemispherical or drop-like cross-section. The bag may be stretched in orthogonal directions in the region of the bottom weld after ferriation of the weld.
Patent GB-1247274-A (GB)
Title: Apparatus for the analysis of fibrous constituents in feeds
Inventor: MOIR KENNETH WILFRED
IPC: G01N5/04
Filed: 1969-11-21
Abstract: 1,247,274. Analysis of animal feedstuffs; oven with pivoted shelves. K. W. MOIR and P. M. MOIR. 21 Nov., 1969 [28 April, 1969], No. 57004/69. Heading B1X. Apparatus for the determination of fibrous constituents in animal feedstuffs comprises capped tubes 1 (Figure 1) each incorporating a removable filter which may be in the form of a cotton wool or glass fibre wick 5, a controlled temperature air oven (Figure 4) with shelves which are mechanically movable through an arc about the horizontal and means which may comprise fixed and spring- loaded plates 15, for supporting at least one of the tubes in the oven with its longitudinal axis approximately parallel to the plane of the shelf. In the embodiment shown, the shelves are pivoted about support column 17 and are moved by crank 18 passing through a slit in the top of the oven. In carrying out the analysis, feed samples of known weight are introduced into weighed tubes 1. Preheated extraction medium is added and the tubes are re-capped and shaken in the oven for a known time. Top and bottom caps 2, 4 are removed and the extractant forced out through tube 3 under pressure. The tube and caps are dried and reweighed. For determination of the ash content of the feed, the filter wick and residues are washed into a weighed silica basin.
Patent GB-1123150-A (GB)
Title: Improvements in or relating to apparatus for cementing well liners
IPC: E21B33/16
Filed: 1966-12-21
Abstract: 1,123,150. Wells &c. C. C. BROWN. 21 Dec., 1966 [4 Feb., 1966], No. 57306/66. Heading E1F. A liner L is cemented in well bore W by passing cement from manifold 150 down manifold 16 behind a plug 141 which engages and locks in a plug element 44. The pressure applied by the cement breaks pins 48 and members 141 and 44 move down to engage and lock in a sleeve 88. Cement pressure shears pins 90 and members 141, 44 and 88 abut ring 82 and move this ring and valve seat 72 down until spring ring 83 engages groove 86. The cement can now pass around the outside of sleeve 88, through slots 91, past ball valve 78 and through holes 70 into the space between the bore-wall and the liner. When the required volume of cement has been introduced, a displacing fluid is applied from the manifold behind a plug 140 which moves down the manifold to engage and lock in plug element 30. Pins 32 are sheared and members 140, 30 move down to engage and lock with shoulder 94. If necessary, the liner may now be anchored to casing C by slips 102 using increased fluid pressure to shear pins 108 and act in chamber 105 to raise the slips. Packer P may be expanded against the casing, to isolate the cement from the fluids it has displaced, by rotating mandrel 16 to release threads 125, 126 and allow downward movement of the mandrel. Hence ratchet threads 131 engage in nut 130 and shoulder 19 moves sleeve 128 to expand packer seal 112. Washing fluid may now be circulated via conduits V, registering ports 132, 133, 134, up the mandrel and into manifold 150. The mandrel and packer may be withdrawn for re-use.
Patent GB-1293599-A (GB)
Title: Apparatus for use in the production of areal patterns on a substrate, comprising a multibarrel photorepeater
Inventor: GARTE DIETER
IPC: G03F7/20
Filed: 1969-11-26
Abstract: 1293599 Photographic apparatus  ARBEITSSTELLE FœR MOLEKULARELEKTRONIK 26 Nov 1969 57907/69 Heading G2A In the production of a wiring pattern on a substrate utilizing an array of photo-repeater barrels, the pattern is divided into parts, the image of each part being formed on the substrate by a single barrel. The substrate is positioned so that the total area exposed by each barrel overlaps the edges of the total areas exposed by adjacent barrels.
Patent GB-1209446-A (GB)
Title: Casting of ingots
Inventor: BAUER FERDINAND
IPC: B22D7/10
Filed: 1966-12-30
Abstract: 1,209,446. Ingot moulds. FOSECO INTERNATIONAL Ltd. 8 Dec., 1967 [30 Dec., 1966], No. 58389/66. Heading B3F. In casting an ingot, e.g. in the form of a bar for forging, of a length less than that of the ingot mould 1, a refractory ring 2 is fitted in the mould, e.g. suspended by rods or straps 3, its periphery conforming to the cross-sectional shape (concave-sided polygon) of the mould cavity wall and material such as sand and coarse aggregate 5 is packed between the wall and an insulating or exothermic refractory sleeve 4 attached to or integral with the ring 2; metal is teemed up to a level 6 in the sleeve. For a big-end-up mould 1 as shown, the ring 2 would be chosen, according to the required ingot length, from a set of rings graduated as to maximum external diameter but having the same internal diameter. The ring 2 may be of sand bonded with silicate or the ring 2 and sleeve 4 may be of refractory filler, organic fibrous material and binder with possibly fibrous refractoty material.
Patent GB-1099751-A (GB)
Title: Stabilisation of solutions of polyurethane polymers
Inventor: COLLARDEAU GEORGES
IPC: C08K5/19
Filed: 1966-12-30
Abstract: Solutions of a polyurea-polyurethane in dimethylformamide may be stabilized by adding thereto a betaine salt which is soluble in dimethylformamide. The polyurea-polyurethane may be prepared by reacting a polyether or polyester with an excess of a diisocyanate and the reaction product chain-extended with an organic diamine or hydrazine.  The betaine salt, which may be added to the polymer solution during its manufacture, or to the finished polymer either in the solid state or after it has been dissolved in dimethylformamide, may be the citrate, ascorbate, bisulphate, tartrate or salicylate.
Patent GB-1343218-A (GB)
Title: Flushing valve arrangement for reversible hydrostatic gear mechanisms
IPC: F16H39/00
Filed: 1971-12-16
Abstract: 1343218 Hydrostatic transmission CONSTANTIN RAUCH 16 Dec 1971 [17 Dec 1970] 58471/71 Heading F2C A flushing valve for replacing the fluid in a hydrostatic transmission having main lines 4, 4<SP>1</SP>, comprises piston slides 9<SP>1</SP>, 9 in valve bodies 7<SP>1</SP> and 7, biased apart by a spring 10, the piston slides having control spaces 15<SP>1</SP>, 15 at their remote ends, annular spaces 13<SP>1</SP>, 13 in communication each with a main line 4, 4<SP>1</SP>, and inner spaces 17<SP>1</SP>, 17 which, in the position shown of the slides communicate with a common space 16 itself in communication via a pressure relief valve 5 with a reservoir 19. The feed or makeup pump 1 feeds fluid, via a filter 20 and a cooler 21 to whichever of the main lines 4, 4<SP>1</SP> is at the lower pressure via one-way valves 3<SP>1</SP>, 3. The pressure in the higher pressure line (say 4) goes via annular space 13 and a three-way throttle control valve 18 to the control space 15<SP>1</SP> where it moves piston 9<SP>1</SP> to cause fluid from the low pressure line (upstream of the connection with the feedpump) to pass from space 13<SP>1</SP> to space 16 and via relief valve 5 to the reservoir. If the pressure in line 4 is high enough the ends of sleeves 9 and 9<SP>1</SP> abut sealingly so that all the flow from the feedpump goes into the main line 4<SP>1</SP> The throttle valve 18 starts to close if a maximum pressure in line 4 is exceeded which, reducing pressure in chamber 15<SP>1</SP> permits pressure in space 13 to move both pistons together leftwards which allows oil to flow from the high pressure line 4 via the valve 5 to the reservoir, some also flowing to the low pressure line 4<SP>1</SP> via the space between port 11<SP>1</SP> of piston 9<SP>1</SP> and port 12<SP>1</SP> of body 7<SP>1</SP>. The valve operates in a similar manner if the high and low pressure lines are reversed.