baber/WOPTO huggingface dataset:
Patent GB-1130879-A (GB)
Abstract: 1,130,879. Jet propulsion engines. G.H. GARRAWAY. April 28, 1966, No. 18581/66. Heading F1J. In a jet-propulsion engine, air, which may be taken in through a ram diffuser 10, Fig. 2, and is compressed in a compressor 11 and divided into two streams, one stream 14 passing by way of a combustion chamber 28 to a turbine 13 driving the compressor. The other stream 15 passes by way of a main combustion chamber 16 (in which the combustion is substantially stoichrometric) to a main jet nozzle 17. The turbine exhaust passes, via a valve 27, a line 24, a heat exchanger 22 for cooling the air and a heat exchanger 23 for cooling the main combustion chamber 16 and main jet nozzle 17, to a reheat burner 19 and a jet nozzle 21 The heat exchanger 22 can be bypassed by closing valve 27 and opening a valve 29 in a line 25 leading directly to the heat exchanger 23. The combustion chamber 28 may be inoperative during supersonic or hypersonic flight. The combustion chamber 28 may be disposed upstream of the division into the separate streams 14, 15. The turbine 13 need not be coaxial with the compressor 11. The heat exchangers 22, 23 may be traversed in reverse order or in parallel, or may be omitted. The main combustion chamber and the main jet nozzle comprise a unitary structure having an unbroken exterior surface over which the turbine exhaust flows. The turbine exhaust duct, reheat burner and turbine jet nozzle may be coaxial with and surround the unitary structure.
Patent GB-1228962-A (GB)
IPC: G11C11/39
Filed: 1968-07-03
Abstract: 1,228,962. Thyristor bi-stable storage circuits. INTERNATIONAL BUSINESS MACHINES CORP. 3 July, 1968 [11 July, 1967], No. 31753/68. Heading H3T. [Also in Division G4] A digital data storage matrix comprises silicon-controlled rectifiers (SCRs) the anodes of which are connected to a current source and the cathodes of which are connected to a sensing line and a current sink line, the current sink line being selectively blocked to current through the SCRs whenever data is read out of the SCRs. In Fig. 1, each bit of each of 3 words (vertical) is stored as the conducting or non-conducting state of an SCR 18. A word is erased by blocking a transistor 20 in a current sink line 12 respective to the word and rendering conducting transistors 23 to apply a positive voltage to bit sense lines 14. Application of a positive voltage to those sense lines 14 corresponding to bit positions which are to store 0 (SCR non-conducting) is used for writing, concurrent with application of a pulse to a control line 19 respective to the word. Read-out of a word is by blocking its transistor 20 thereby diverting the current flowing in conducting SCRs of the word from line 12 to the bit sense lines 14 which feed reading amplifiers 22. Fig. 3c shows one bit cell of a second matrix. Writing is done by applying positive pulses to word lines X, Y, 44, 43 and a negative pulse to one of bit lines 45, 46 to write 0 and 1 respectively. Reading is done by applying positive pulses to lines X, Y, 44 thus diverting any current flowing in the SCR from lines X, Y to a bit sense line 47. Two modifications of Fig. 3c are disclosed which dispense with line 43. One connects resistor 30 and diode 31 in series across diode 100. The other dispenses with diode 31 and connects resistor 30 between G1 and the right-hand end of resistor 80.
Patent GB-1229690-A (GB)
IPC: A61B1/267
Filed: 1969-06-23
Abstract: 1,229,690. Laryngoscopes. WELCH ALLYN Inc. 23 June, 1969 [9 Oct., 1968], No. 31546/69. Heading A5R. A laryngoscope comprises a unitary blade 11 and handle 12 of non-metallic material, the handle being arranged to support and hold in position a battery pack and lamp unit (22), Fig. 6 (not shown), and a bundle of light transmitting optical fibres 31, extending from the interior of the handle to a point on the blade located between the middle of the blade and its distal end. The end of the bundle inside the handle is arranged to receive light from the lamp (25) of the battery pack and lamp unit which is held in position inside the handle by a removable screw closure cap 21. The lamp unit includes a switch (26) which is operated by movement of the cap. In a modification, Figs. 9 and 10 (not shown) the fibre bundle is located between an additional wall (35) and a flange (16').
Patent GB-1229740-A (GB)
IPC: H03H7/00
Filed: 1969-06-12
Abstract: 1,229,740. Variable capacitors. MARCONI CO. Ltd. 18 Feb., 1970 [12 June, 1969], No. 29738/69. Heading H1M. A capacitive switching device, e.g. for a keyboard actuated teleprinter transmitter or the like, comprises fixed input and output members consisting of insulating strips 3, 33 supporting electrodes 1 connected to the input terminal, 2 and 22 connected to earth and 11 connected to output terminals 01, 02, 03 &c., and a movable member consisting of strip 5 supporting electrodes 6, the movable member moving between two limiting positions in one of which each electrode 6 provides with a pair of input and output electrodes two series connected capacitors and in the other decoupled position each electrode 6 provides with an earth electrode on the input member and an earth electrode on the output member two series-connected capacitors. The electrodes may be formed by printed circuit techniques with through plated poles where required. The input member may have a further set of electrodes on its other face co-operating with a second movable member optionally independent of the first and a second output member.
Patent GB-1231849-A (GB)
IPC: H05K3/46
Filed: 1968-12-20
Abstract: 1,231,849. Printed circuits. ENGLISH ELECTRIC CO. Ltd. 20 March, 1970 [20 Dec., 1968], No. 60703/68. Heading H1R. Conductive bridging tracks may be formed across voids in a substrate, by first filling the voids with an inert filler material, which may be a powder deposited from a liquid suspension, and then depositing the bridging tracks on the surface of the filler material. The filler material may or may not be subsequently removed. Alternatively, a decomposable film may be formed over the voids, bridging tracks deposited on the film, and the film then decomposed so that the bridging tracks settle down on to the parts of the substrate surrounding the void. The film may be of nitrocellulose, formed by immersing the substrate in water, dropping a solution of nitrocellulose in a volatile organic solvent on to the water to form a film, and then draining off the water. The tracks may be deposited by evaporation and then strengthened by electro-less plating. The bridging tracks can be used to connect an integrated circuit chip located in the void to wiring on the substrate, or to form bridging portions which interconnect circuit conductors on opposite sides of a void and cross other conductors already traversing the voids. The substrate may be of photosensitive glass, the voids being produced by exposing to light and etching.
Patent GB-1231980-A (GB)
IPC: C07C263/10
Filed: 1969-07-04
Abstract: 1,231,980. Diaminodiphenyl methane. UPJOHN CO. 4 July, 1969 [6 Aug., 1968], No. 33784/69. Heading C2C. Di-(aminophenyl) -methanes which contain substantial amounts of the 2,4<SP>1</SP>- and 2,2<SP>1</SP>-isomers are prepared by mixing aniline and formaldehyde in a molar ratio of at least 3.5 1; removing the water of condensation liberated in the aniline-formaldehyde condensation product; heating the resulting anhydrous product to a temperature of 125-205 C.; adding thereto a catalytic amount of a proton source, e.g. hydrogen chloride or aniline hydrochloride; and finally isolating the product from the reaction mixture. The reaction mixture consists of methylene-bridged polyphenyl polyamines wherein the major single component is di-(aminophenyl)-methane in which the isomer proportions are as follows: 4,4<SP>1</SP> 15-85 weight per cent, 2,4<SP>1</SP> 10-60 weight per cent and 2,2<SP>1</SP> 5-25 weight per cent. Phosgenation of the said mixture results in the corresponding polyphenyl polyisocyanates containing a substantial amount of di-(isocyanatophenyl)-methane. Di- (aminophenyl) -methane can be separated from the polyamine mixture and separately phosgenated, if desired.
Patent GB-1238397-A (GB)
IPC: C07D513/04
Filed: 1969-07-31
Abstract: 1,238,397. Tetrahydro - pyrazole - and isoxazole-thiazepinones. ABBOTT LABORATORIES. 31 July, 1969 [1 Aug., 1968], No. 38578/69. Heading C2C. Novel compounds of the Formula (A) wherein W is R is H, C 1-7  alkyl or phenyl, R<SP>1</SP> is H, C 1-7  alkyl phenyl or cyclohexyl, R<SP>2</SP> is C 1-7  alkyl, cyclopropy], 2-furyl or where X is H, Cl, Br, F, CF 3 , OH, C 1-7  alkoxy, dialkylamino or -COOH, and Y is H, Cl or C 1-7  alkoxy, R<SP>3</SP> is H or C 1-7  alkyl, R<SP>4</SP> is H, C 1-7  alkyl or -C 1-7  alkyl-COOH and R<SP>5</SP> is H, C 1-7  alkyl or di(C 1-7  alkyl)amino-C 1-7  alkyl may be obtained by condensing a Schiff base of the Formula (III) with a molar equivalent of a thioglycolic acid of the formula HSCHR<SP>4</SP>COOH in the presence of an inert solvent boiling above 50‹ C. at a temperature between 60‹ and 150‹ C. for a period of at least 30 minutes, and when R<SP>5</SP> is other than hydrogen, alkylating or dialkylaminoalkylating the product with one molar proportion of an appropriate alkylating or dialkylaminoalkylating agent. Optionally, the Schiff base may be formed in situ by condensing an aminopyrazole or aminoisoxazole of the formula: with an aldehyde R<SP>2</SP>CHO or a ketone R<SP>2</SP>R<SP>3</SP>CO in an inert solvent. The compounds are useful anti-inflammatories. Compounds of the formula wherein R, R<SP>1</SP>, R<SP>2</SP>, R<SP>4</SP> and R<SP>5</SP> are as defined above, may be obtained from compounds of Formula (A) in which W is and R 5  is H by reacting with more than an equimolar amount of alkylating agent. Thus 7 - (3,4 - dichlorophenyl) - 1,3 - dimethyl - 7,8- dihydro - 1H - pyrazolo[3,4 - d][1,3]thiazepin- 4(5H)-one with 2 mols. of NaH and 2 mols. CH 3 I yields 6 - (3,4 - dichlorophenyl) - 1,7 - dihydro - 1,3,7 - trimethyl - 4H - pyrazolo - [3,4 - b] pyridin - 4 - one; 1,3 - dimethyl - 7 - (4 - fluorophenyl) - 7,8 - dihydro - 1H - pyrazolo [3,4 - d] [1,3]thiazepin - 4(5H) - one is similarly converted to 6 - (4 - fluorophenyl) - 1,7 - dihydro- 1,3,7 - trimethyl - 4H - pyrazolo[3,4 - b][1,3] pyridin-4-one. These compounds also have excellent anti-inflammatory activity.
Patent GB-1250328-A (GB)
IPC: D06B1/00
Filed: 1968-12-10
Abstract: 1,250,328. Humidifying apparatus. JAMES HOWORTH & CO. Ltd. 5 Dec., 1969 [10 Dec., 1968; 24 Jan., 1969], Nos. 58626/68 and 4294/ 69. Heading B1R. The humidifying apparatus of Specification 1,244,331 is modified by covering the rotating perforated cylinder with a porous layer of, e.g. foamed plastics material.
Patent GB-1251036-A (GB)
IPC: C08F20/62
Filed: 1968-10-29
Abstract: 1,251,036. Electrophotographic element. RICOH K.K. 29 Oct., 1968 [31 Oct., 1967], No. 51307/68. Heading H1K. An electrophotographic element comprises a conductive support having a photo-conductive layer thereon the layer comprising zinc oxide and a binder, the binder comprising a mixture of up to 50 wt. % of a first copolymer containing up to 40 mole % of a nitrogen-containing monomer, and a second copolymer including a vinyl monomer. Both the first and the second copolymer are defined in claim 1. In the specific embodiments, the first copolymer is made from methyl methactylate, butylacrylate, styrene, acrylic acid, acrylonitrile, acrylamide and N- methylolacrylamide with the optinoal addition of trimethylamine whilst the second copolymer is made from styrene or vinyl acetate with butyl acetate, #-hydroxyethyl methacrylate and/or ethyl acrylate and acrylic acid, maleic anhydride or methacrylic acid. A dispersion of the first and the second copolymers with ZnO, a dye mixture and phthalic anhydride is coated on paper or a metal support. Examples of electrophotographic plates utilizing only one of the copolymers are disclosed.
Patent GB-1253219-A (GB)
IPC: B63B1/04
Filed: 1968-12-20
Abstract: 1,253,219. Ships' hulls. MITSUI SHIPBUILDING & ENG. CO. Ltd. 20 Dec., 1968 [29 Dec., 1967], No. 60683/68. Heading B7A. The bottom of a marine vessel is of V-form in transverse section throughout the greater part of its length to form oppositely inclined flat floors 4 (only one of which is shown) extending from the keel to the chine of the vessel, the rise R of the floors and their breadth B<SP>1</SP> being such that the requisite draft necessary to maintain the unladen vessel in a stable condition is achieved without ballast; the water line II being below the chine. Water line II also relates to a vessel of conventional form 1 when in ballast, water lines I, III, respectively, relate to a conventional vessel when laden and when light without ballast.
Patent GB-1264358-A (GB)
IPC: G03B17/30
Filed: 1969-12-17
Abstract: 1,264,358. Film spools. NIPPON KOGAKU K.K. Dec.17, 1969 [Dec.25, 1968], No.61478/69. Heading G2A. A film spool comprises an inner cylinder 4 drivably connected to a wind-on handle 3, and an outer cylinder 2, the latter having a number of angularly spaced slots 2a, and the inner cylinder having a corresponding number of pawls 4a, the cylinders being normally biased into a position in which the pawls are staggered with respect to the slots. The biasing means is a spring 5, attached at one end to cylinder 4 and at the other to cylinder 2, and the cylinders are normally biased into the position shown in Fig. 4. Each slot 2a has an inclined guiding lip 2b. Cylinder 4 is fitted as a frictional fit on the film winding spindle 3, so that it is rotated thereby. A pin 4b on cylinder 4 engages in an opening 2c, in cylinder 2, so that movement of the latter is limited. When the end of a film is inserted into an opening 2a, it is pushed in until a pawl 4a engages in a film perforation, so that the film is now securely attached to the spool Fig.6 (not shown). When it is desired to release the film, as for instance at the end of rewinding, the inner cylinder is pulled anticlockwise until the pawl 4a comes opposite an opening 2a, upon which the film is released smoothly. The cylinders are then restored to their original position by the spring 5.
Patent GB-1264866-A (GB)
IPC: B23D43/02
Filed: 1969-03-24
Abstract: 1,264,866. Broaches. F. W. SCHMIDT. 24 March, 1969 [28 March, 1968], No. 15368/69. Heading B3L.  A broaching tool comprises a plurality of individual cutting elements 12 each-formed with a cutting edge e.g., serrations 46, retaining means 26 for securing said cutting elements in a broaching array, and interlocking means including contoured surfaces 16 on opposed faces of each of said cutting elements, said contoured surfaces extending along substantially the full length of the cutting elements to a position closely adjacent the cutting edge 46 to provide complementary interengaging mating portions on adjacent cutting elements. The cutting elements are threadedly clamped between end blocks 20, 22 by the retaining means 26. The contoured surfaces 16 may be provided by V grooves and projections, serrations, tongue and grooves, or part circular surfaces. The assembled tool is clamped in a holder (48) (Fig. 5, not shown) by means of a clamping bar (52) engaging in notches (50) in the sides of the tooth elements 12.
Patent GB-1265757-A (GB)
IPC: B65G69/02
Filed: 1969-06-06
Abstract: 1,265,757. Pneumatic conveying; feeding to silos. C. C. WEAVER and R. E. KIRKPATRICK. 6 June, 1969, No. 28887/69. Headings B8A and B8S. An air sealed silo 10 is supplied with silage through a guideway 26 communicating a radial slot in the domed roof 12 of the silo with a pneumatic conveyer tube 24, the silo being vented to atmosphere during filling, by an air pipe 27 extending from the roof 12. Air tight covers which are opened during the filling operation, are provided at the end 28 of the air pipe 27 and at the receiving end 41 of the conveyer tube 24, a blower 43 being connected to the end 41 for the filling operation. The guideway 26 has an inverted U-shaped transverse section adjacent the silo roof slot, and to the radially inner end of the guideway is pivoted a similarly sectioned silage distributing member, the angle of which is controlled by a cable which extends down the air pipe 27 for manual adjustment. A silage level gauge comprises a weighted measuring rope suspended from the silo roof whereupon the weighted end engages the silage and the other end extends down the air pipe 24 for connection to the base thereof. In the embodiment of Figs. 7 and 8 (not shown), the silage guideway projects into the silo through the side wall thereof just below the roof.
Patent GB-1266107-A (GB)
IPC: H05K5/02
Filed: 1970-09-07
Abstract: 1,266,107. Stacking boxes. METTLER INSTRUMENTE A.G. 7 Sept., 1970 [18 June, 1970], No. 42691/70. Heading B8P. [Also in Division H1] A stackable housing for electronic equipment. comprises a portion 19 with a groove 21 and a spring lock 26 with projecting lug 25 such that the housing can be secured to the top of a second housing with a projecting top such as 10. The side walls also project so that motion in the lateral direction is also prevented. A pivotable support bar 16 is provided to incline an individual housing and is held against the housing when not required. The feet 22 are designed to allow clearance between the ground and the lug 25. A panel 20 is provided for an identification strip.
Patent GB-1296757-A (GB)
IPC: B28B7/02
Filed: 1970-02-26
Abstract: 1296757 Moulds B KIRSCH 26 Feb 1970 [28 Feb 1969] 9469/70 Heading B3F [Also in Division B5] A mould for use in manufacturing frameshaped elements has a mould cavity 5 whose size is adjustable, the mould comprising an upper part 6 covering the top of the mould cavity and a lower part divided into at least two sections. The lower part has a base 2, an inner mould wall 4 and an outer mould wall 3, and, in the embodiment shown in Fig. 1, is made up of two angle members 7 and 8 of similar shape each having a shorter side 9 and a longer side 10. The outer mould walls 3 are just as long as the base part 2 whilst the inner mould walls 4 are considerably shorter. A mould side section 15 is inserted in a gap 14 formed as a result of the shortness of the wall 4 and is connected to the base 2 by screws 16. To change the size of the mould cavity, the side sections 15 are withdrawn and the angle members 7 and 8 mutually displaced in a longitudinal direction until the desired size is attained. The free ends 11 of the shorter sides 9 are then reconnected with the longer sides 10 by means of screws 17 and another mould side section 15 of suitable size inserted in the gap 14. The outer walls 3 have orifices 18 to permit removal of any cores. In another embodiment the lower mould part is made up of a U-shaped angle member and a straight member, and a further embodiment makes use of four straight members. The mould dimensions may be changed in both directions so that the frames produced may vary in length and breadth. The mould sides 3 and 4 may be integral with the base 2 or they may consist of separate strips keyed into longitudinal grooves in the base by members (34).
Patent GB-1301552-A (GB)
IPC: H01R13/703
Filed: 1970-07-09
Abstract: 1301552 Two-part couplings PLESSEY CO Ltd 19 April 1971 [9 July 1970] 33442/70 Heading H2E An electrical contact assembly or switch board jack comprises a metal base portion 10, an insulating strip 11 e.g. of ebonite secured to base 10 by nut and screw fixings such as at 12, and a further insulating strip 14, secured by means of screws and a clamping plate 15, the contact members 16-22 and wire 23 being embedded in strip 14, which is typically of a plastics material e.g. glass-filled polycarbonate or ebonite and which may be applied by injection moulding techniques. The contact members and wire 23 are of square-section hard-drawn material e.g. cadmium copper, and their contacting areas at least may be coated with precious or semi-precious metal, the contact area being restricted to knife edges (Fig. 2, not shown). Due to their cross-section the contact members are suitable for solderless connections to be made on them where they protrude through strip 14 as at 24. To ensure that the contact members do not become dislodged under the stresses imparted by the solderless connection process it may be necessary to have a small knee formed in the contact members where they pass through strip 14. Each of the contact springs or members is of U-shaped configuration, members 17, 18, 20 and 22 being flared to give a widened free end to ensure twin contact between members (see enlarged detail of members 18 and 19). Members 16 and 19 are formed inwardly towards each other at their free ends to enable the tip and ring electrodes of a plug inserted through a hole having an interference fit metal bush 13, to contact them and at the same time deflect the said members out of contact with members 17 and 18. The movement imparted to member 19 from the plug is transmitted to member 21 via insulating sleeve 25 thus breaking contact between members 20 and 21 and making contact between members 21 and 22.
Patent GB-1303803-A (GB)
IPC: B29C48/28
Filed: 1969-01-22
Abstract: 1303803 Curing extruded tubes BTR INDUSTRIES Ltd 19 Jan 1970 [22 Jan 1969] 3632/69 Heading B5A [Also in Division C3] At least one internally supported first tubular layer of rubber on a removable mandrel is externally coated with a further tubular layer of rubber during vertically downward passage through a screw extruder cross-head at the outlet of which is sealably engaged a vulcanizing chamber containing pressurized steam e.g. at 40 to 80 p.s.i. (290-330 F.) for curing at least the further layer, and upstream movement of the layers along the mandrel by the steam pressure is prevented by fluid pressure around the first tubular layer at the inlet to the cross-head. The first layer may be preformed and braided, Fig. 1 (not shown), on a flexible mandrel, or may be simultaneously formed on the mandrel and braided by vertically upward passage through a first tubular layer applying screw extruder cross-head and braiding machine, Fig. 2 (not shown),the feed to the further layer extruder being respectively from the preformed coil by a vertical Caterpillar (R.T.M.) device, or from the first layer extruder over a roller, and the delivery from the further layer extruder being effected in each case, around a roller, by a vertical caterpillar. In these embodiments, water is supplied to a seal at the lower end of the vulcanizing chamber. A corrugated tube may be produced by a corrugated extrusion die, and multiple braids may be applied, prior to the second layer, with the intermediate application of an unvulcanized calendered rubber winding, or a solution or dough thereof. The first layer may also have applied thereto a spiral or knitted reinforcement. In the Figs. 3-6 embodiment, the first ayer is applied under vacuum to a flexible mandrel, by vertically upward passage through a cross-head, and storage festoons are located before and after a braiding e.g. of rayon, applicator, to ensure process continuity during braiding yarn replacement. The braided first layer is fed to and from the cross-head 70 by wheels, the feed thereto being through a seal 65 into a chamber 66 connecting at its other end to the cross-head 70 and which contains infra-red pre-heaters 67 and pressurized air e.g. at 15 p.s.i., which acts to prevent upstream slippage of the layers around the mandrel arising from the vulcanizing steam pressure. The steam vulcanizing chamber 77 seals at its upper end to the cross-head at a tube 71, which is telescopically upwardly or downwardly movable at the commencement of extrusion and sealed by "O" rings 72, 73, and the lower chamber end is sealed by flexible rubber seals 75. With hoses which are thick walled or of greater than 1" diameter, additional heating is provided by an infra-red or microwave heater at the top end of the chamber 77, or in the tube 71. Two or three tubes may be simultaneously extruded from one or more extruders and simultaneously passed through the vulcanizing chamber.