baber/WOPTO huggingface dataset:
Patent GB-888856-A (GB)
Title: Process and catalyst for the polymerisation of ª--olefins
Inventor: RAUM ALARIC LOUIS JEFFREY
IPC: C08F10/00
Filed: 1959-12-23
Abstract: a -Olefins containing at least three carbon atoms are polymerized by contact in a liquid vehicle at elevated temperature and pressure with a catalyst system formed from a metal or metals in Periodic Group Ia, IIa, IIb or IIIb and a partially oxidized titanium trihalide. Specified monomers are propylene, butene-1, butadiene and isoprene. Suitable metals are Li, Na, K, Mg, Ca, Zn, Be and Al; Mg and Al are preferably employed, particularly in admixture.  Optionally there may be added to the catalyst a third component such as Cl2, Br2, I2, ICl, CuCl2, AgCl, HgCl2, PbCl2 and AlCl3.  The usual hydrocarbon solvents may be employed.  According to the Provisional Specification, a partially oxidized titanium dihalide may replace the partially oxidized titanium trihalide.
Patent GB-1408636-A (GB)
Title: Control devices
IPC: G05D1/02
Filed: 1972-09-21
Abstract: 1408636 Automatic control of acceleration and position FRANCE ARMED FORCES MINISTER OF 21 Sept 1972 [21 Sept 1971] 43853/72 Headings G3N and G3R The position of a craft (e.g. a drilling vessel) is controlled by the combination of signals from accelerometers and from a navigational system which determines positional errors with respect to a reference frame, there being at least three accelerometers, at least two of which detect translational acceleration in orthogonal planes and which are corrected for errors arising from rotational movements of the craft. In the embodiment a ship 9 is acted upon by wind, current and swell forces represented by box 13 and thrust Fxn produced by a propeller 10. The ship may have bow and stern laterally acting propellers in addition to the normal drive propeller, and it may be a submarine with vertical thrust propellers. Each propeller has a separate control channel like the one shown. Accelerometer signals from 14 are processed in a P+I unit 15 and control the propeller via a summer 12 and a non- linear circuit 11 which compensates for the non- linear thrust/control signal relationship. The gain of circuit 11 and the phase angle (time constant) in unit 15 are automatically adjusted by an arrangement 16 also Fig. 10 (not shown) which applies pertubations to the thrust via summer 12 and notes the result on the accelerometer output; if this differs from values set on potentiometers adjustment to 11 and 15 is made. Signals from wind, current and swell detectors 25 are applied to a circuit 26, also Fig. 11 (not shown) in which the parameters of the ship are modelled, the resulting response being applied as anticipatory signals to the summer 12. The final input to the summer 12 comprises the output of a position error detector 17, 18 which uses a conventional radio, sonar or anchored reference source and is not disclosed in detail. This output may have its co-ordinates changed at 20 and is filtered by a low pass filter 21. The circuit 20 may respond to a circuit Fig. 12 (not shown) which calculates the resultant thrust due to wind, current and swell, to change the ships heading so as to minimize this thrust. In the complete system three accelerometers are mounted on a gyro stabilized horizontal platform, Fig. 6 (not shown), two orthogonal translational ones and one angular one. Their outputs are compensated for the tangential effect of pitch and roll by two further accelerometers (39, 40) on the ship's frame, and the output of resolvers (37, 38) on the gyro gimbals, by an accurate circuit Fig. 7 (not shown) or a simpler, approximate one Fig. 9 (not shown). A switch 22 provides for manual operation by controller 24. Provision is made for manual control of one channel concurrently with automatic control of the others.
Patent GB-1322911-A (GB)
Title: Frequency demodulator
IPC: H04N5/92
Filed: 1970-09-17
Abstract: 1322911 Frequency discriminators WESTINGHOUSE ELECTRIC CORP 17 Sept 1970 [6 Oct 1969] 44457/70 Heading H3A An f.m. demodulator comprises a number of storage devices Ca, Cb which, during successive half cycles of the f.m. signal, store a voltage proportional to the lengths of the respective half cycles, means 28 for selecting whichever of the potentials is the greater and means for removing the potential from the storage device after selection. In one embodiment, Fig. 1, a frequency modulated signal from a video recording 10 is applied to limiter 12, phase splitter 14, and constant width pulse generator 16 to produce phase displaced trains of constant width pulses which are used to set and reset a bi-stable 18. The outputs from the bi-stable and the constant width pulses are applied to NOR gates 20a, 20b to produce two phase displaced trains of pulses whose widths are proportional to the time periods of successive half cycles of the input signal. At the beginning of a first half cycle one output from phase splitter 14 is differentiated at 26a to provide a pulse which momentarily turns on transistor Qa to discharge capacitor Ca. The output from NOR gate 20a then opens gate 22a to charge capacitor Ca from constant current source 24a to a potential proportional to the time period. During the following half cycle, capacitor Cb is similarly charged. The potentials to which the two capacitors are charged is then applied to a circuit 28 which passes the larger of the two potentials to an output line. In a modification, Fig. 5 (not shown) the potentials on the capa. citors is applied to a sample and hold circuit (Sa, Sb, 30). The limited input signal may be split into more than two phases, e.g. four, each with its associated capacitor, Fig. 3 (not shown).
Patent GB-969760-A (GB)
Title: A method of manufacturing flexible plates or strips of foamed plastic material
IPC: B29C44/56
Filed: 1960-12-28
Abstract: 969,760. Moulding cellular material; laminates. PORON INSULATION Ltd. Dec. 28, 1960 [Jan. 1, 1960], No. 44506/60. Drawings to Specification. Headings B5A and B5N. Expanded flexible polystyrene having closed cells is heated by passing through rollers to slightly soften the surface and then compressed between rollers. It is stated that this improves the properties of the material. The material may be simultaneously impressed or imprinted. The treated material may be coated with paper or plastics foil.
Patent GB-984623-A (GB)
Title: Hydraulic reciprocating pumps or motors
Inventor: IFIELD RICHARD JOSEPH
IPC: F01B3/00
Filed: 1962-04-13
Abstract: 984,623. Reciprocating motors and pumps. JOSEPH LUCAS (INDUSTRIES) Ltd. April 11, 1963 [April 13, 1962], No. 44591/61. Heading F1A. In an axial piston motor or pump having a revolving cylinder block 2 engaging a stationary, ported valve plate 5 in a liquid-filled housing, recesses 16, Fig. 2, in the cylinder block face are partially exposed to valve plate ports 6 during rotation, and recesses 17 in the valve plate are partially exposed to recesses 16 during rotation, so that the whole of the bearing surfaces are wetted at least once per revolution. Specification 879,648 is referred to.
Patent GB-1517733-A (GB)
Title: Dual mode roll fuser
IPC: G03G15/20
Filed: 1975-10-29
Abstract: 1517733 Dual mode heat fuser XEROX CORP 29 Oct 1975 [24 Feb 1975] 44607/75 Heading B6C One embodiment, Fig. 2, comprises two internally heatable metal or glass surfaced rollers 30, 40, an externally heatable elastomeric surfaced roller 33 and a conveyer 60 shiftable to feed a toner image bearing copy sheet to a selected one of two fuser nips 34, 46 so that the borne toner image contacts either a hard or a resilient surface respectively of a fuser nip. Nips 34 and 36 are used for fusing toner images borne on plain paper and transparent film respectively. In another embodiment, Fig. 3 (not shown), a single hard surfaced roller forms nips with two resilient surfaced rollers. In a further embodiment (not illustrated), two different rollers which are interchangeable in positions are stated to be used for forming the nips.
Patent GB-448106-A (GB)
Abstract: 448,106. Bakers' ovens. KEITH & BLACKMAN CO., Ltd., J., and KEITH, G., 27, Farringdon Avenue, London. Nov. 1, 1934, No. 31370. [Classes 51 (i) and 51 (ii)] In a gas-fired bakers' oven, the burner pipes 14 project into the oven through boxes 4, 7 which extend respective - ly through the oven wall 3 and an enclosing jacket 9 supplied with air at super-atmospheric pressure by a fan 31, Fig. 6, the burners being equipped with injectors 17 supplied with gas under pressure and serving to induce, through openings 15 in the boxes 7, a flow of air for combustion from the jacket 9. Each injector 17 is mounted in a casting 13 which carries the tube 14 and Venturi 18 and is fitted into the box 7 so that apertures 15<a> in its wall register with the openings 15. The gas supply main 20 is housed in the jacket 9 and communicates with the inlet chamber 23 in the casting 13 through a pipe 19, a pocket 21 integral with the box 7, and a pipe 24 controlled by a valve 22. To regulate the quality of the mixture passing to the tube 14, there is provided a valve 28, Fig. 2, which controls a byepass passage 29 leading from the chamber 23 to the space 30 surrounding the injector 17. The joint between the box 7 and the outer wall 8 of the air jacket 9 is effected by a floating plate 11 which is formed with sealing channels 33 overlapping the wall 8 and with a sight aperture 34, the latter being closed by a door 35 which slides between the plate 11 and a spring-pressed ferrule 36 fitted in a hole in the box 7.
Patent GB-1034164-A (GB)
Title: Stabilised acetal resin compositions
IPC: C08K5/20
Filed: 1964-11-04
Abstract: A stabilized acetal resin composition comprises up to 1.5% based on the composition of carbon black and a basic antioxidant. Specified antioxidants are N-phenyl-beta-naphthylamine and diphenylamine-preferably used in amounts from 0.2 to 2% based on the composition. The resin may be acylated, preferably acetylated.  In examples there are also present amide derivatives, a polyester amide and the terpolymer:  38% caprolactam, 35% hexamethylene adipamide, 27% hexamethylene sebacamide.
Patent GB-1522609-A (GB)
Title: Tanks for the storage and transport of fluid media under pressure
IPC: B63B25/14
Filed: 1974-10-18
Abstract: 1522609 Gas storage containers MARTACTO NAVIERA SA 20 Oct 1975 [18 Oct 1974 (2) 2 April 1975 (2)] 45274/74 45275/74 and 13491/75 Heading F4P A storage tank for pressurized fluid (e.g. liquefied gas) has a top, bottom and one pair of opposite sides composed of part-cylindrical lobes 11, 11a the other pair of sides being composed of lobes and/or domes 12, 12a, with internal orthogonally intersecting tie-plates 13, 14 connecting the inter-lobe nodes of opposite walls to divide the tank interior into tunnels 15 of rectangular, e.g. square, cross-section. The tunnels may extend longitudinally of the tank as shown, or transversely horizontally or vertically. The lobes and tie-plates are joined at the nodes by Y-sectioned junction-pieces (17, 17a), Fig. 2 (not shown) the ones (17a) on the bottom of the tank having additional downwardly extending arm for co-operation with a bar 20, Fig. 4, supported at intervals by stays 21 secured to a block 23 of heat insulating material. The tank may be ship-mounted, the supports allowing for thermal expansion and ship movement.
Patent GB-1060618-A (GB)
Title: Improvements in or relating to socket units for plug-and -socket connectors
Inventor: CHANDLER WALTER
IPC: H01R13/514
Filed: 1962-11-30
Abstract: 1,060,618. Two-part couplings. PLESSEYU.K. Ltd. Nov. 22, 1963 [Nov. 30, 1962], No. 45368/62. Heading H2E. The insulating body of a plug-and-socket type connector includes a strip 1 of dielectric material bent into an undulated form such as a square wave form (Fig. 1), the spaces 1a, 1b between pairs of parallel walls forming contactaccommodating chambers. A number of such strips are attached together, the undulation ridges in one strip bridging the undulation grooves in an adjacent strip, to form enclosed chambers. Flat strips 5 of dielectric may be rigidly attached along the sides of the strips 1 in between adjacent strips. The contacts 2 which are cylindrical bushes, are retained in position by tongues 3, Fig. 1, which are pressed out from, or moulded on to, the walls of the bent strips, and which lock into grooves 4 in the bushes 2. The bent strips 1 may also be of a sinusoidal form (Fig. 4, not shown), of triangular form (Fig. 5, not shown) or of a form having S-shaped walls between each opposing ridge (Fig. 6, not shown). The strips may be formed by bending from a flat strip by extrusion or by moulding. In the triangular structure the flat strips 5 are preferably omitted, due to the considerable overlap of the ridge portions.
Patent GB-1066557-A (GB)
Title: Improvements in or relating to microwave devices
Inventor: RICHARDS CLEMENT JOHN
IPC: H01P11/00
Filed: 1962-11-30
Abstract: The invention relates to a microwave reflecting, refracting or guiding device such as a waveguide, or an aerial reflector or lens, consisting of a supporting member of light weight insulating material such as fibreglass and adherent thereto a layer formed of metal flakes or filings in cured resinous material in which the flakes or filings are suspended before curing.  A method of making the device consists of mixing the flakes or filings which may be copper, brass, iron or steel in a curable resinous material in fluid form such as epoxy resin and/or polyester resin, applying the mixture to a former of predetermined shape to form a layer thereon, curing the resinous material and, before completion of the curing, laying insulating backing material on to the exposed surface of the layer of the mixture to provide a mechanically supporting backing, the completed device then being separated from the former.  The surface of the metal/resin layer remote from the insulating material may be provided with a final coating deposit of conductive material.  The metal flakes or filings may be provided with contacts through which a heating current may be passed for de-icing the device.
Patent GB-1456949-A (GB)
Title: Steel for use at high temperatures
IPC: C22C38/26
Filed: 1975-10-31
Abstract: 1456949 Low alloy steel DALMINE SpA 31 Oct 1975 [11 Nov 1974] 45517/75 Heading C7A A low-alloy steel having a high creep resistance at temperatures up to about 575‹C, and suitable for applications such as chemical reactors, boilers, tubes, pipes and ducts contains Fe balance and impurities, where V + Nb = 0À35-0À40 and the C, N, Vad Nb are related by:- The most appropriate heat-treatment to achieve high creep strength together with good impact properties, workability and weldability is by normalizing at 1000-1200‹C followed by tempering between 600 and 800‹C.
Patent GB-1443481-A (GB)
Title: Zoom lens assembly
IPC: G02B13/24
Filed: 1974-10-22
Abstract: 1443481 Zoom lenses XEROX CORP 22 Oct 1974 [23 Oct 1973] 45570/74 Heading G2J A zoom lens for projecting images from microfilm at magnifications from about 17-29X and operating in the wavelength range 0.38-0.54 microns comprises axially fixed front and rear members 20, 26 and axially movable members 22, 24 arranged as shown. In Fig. 1, R 1  is flat or weakly positive. In a modification Fig. 4 (not shown) R 1  is negative, R 14  is negative and R 19  is positive. Numerical data are given for two examples of the embodiment of Fig. 1 and for one example of the embodiment of Fig. 4. In the mount for the lens, Fig. 6 the two movable members are controlled by cam slots 64, 66 in a cam sleeve 60 which is provided with gear teeth 62 which is engaged by a timing belt to effect zooming. The arrangement is such that equal angular rotations of cam sleeve 60 cause equal changes in magnification. Furthermore, a constant f-number is maintained by pin 94 in slot 62 acting on diaphragm 90.
Patent GB-1529716-A (GB)
Title: Colour printing method
IPC: G03F3/04
Filed: 1975-11-04
Abstract: 1529716 Half-tone printing TRIPRINT PTY Ltd 4 Nov 1975 45833/75 Heading B6C [Also in Division G2] In a method of half-tone printing involving three primary colour printing passes, four differentially angled screen images of the primary colour and black components of an original are prepared. The dot sizes of the screen images corresponding to the primary colours are reduced prior to the combining of each image with its respective black component, to form negatives from which three printing plates are made. During printing the density and volume of the inks are maintained to balance the reduction in dot-size of the primary colour components.
Patent GB-980460-A (GB)
Title: Improvements in or relating to electric logical circuits
Inventor: CLARKE RAYMOND WILLIAM
IPC: H03K19/084
Filed: 1961-12-21
Abstract: 980,460. Binary half-adders. MULLARD Ltd. Dec. 21, 1961, No. 45835/61. Heading G4A. [Also in Division H3] A "half-adder" circuit comprises two transistors T1, T2 having a common constant current emitter supply S1 a constant current supply S2 to the base of T2 and a constant current supply S3 from the base of T1. The bases are joined by diode network D1-D4 to which input terminals A, B are connected diodes D1 and D3 forming an AND gate and D2 and D4 an OR gate. With both input signals at zero voltage transistor T1 conducts providing an output at O1 and T2 and T3 are cut-off. With a positive signal at A or B the OR gate D2, D4 causes T1 to be cut off so that T2 now carries the constant current and provides a "sum" output at O2. If positive signals are applied to both A and B a positive voltage is applied by the AND and OR gates to the bases of both T1 and T2 with the result that both transistors are cut-off and the constant current passes through a third transistor T3 providing a "carry" signal O3. The transistors may be arranged to pass a small current when "off" by connecting diodes in series with their respective emitters and if necessary by connecting small valued constant current supply to the emitters (Fig. 6, not shown).
Patent GB-1462234-A (GB)
Title: Re-chargeable galvanic cell and a method of operating such cells
IPC: H01M6/50
Filed: 1974-10-23
Abstract: 1462234 Discharging cells DEUTSCHE AUTOMOBIL GmbH 23 Oct 1974 [27 Oct 1973] 45866/74 Heading H1B A method of operating a cell comprising a rechargeable zinc electrode and one or more auxiliary electrodes comprises, after normally discharging the Zn electrode, subjecting At to a further discharge through the auxiliary electrode. This further discharge may be effected after each charge/discharge cycle or after a particular number of cycles and may be effected by short-circuiting the Zn electrode with the auxiliary electrode directly or by passing a current from an exterior power source through both electrodes. The other electrode is nickel oxide and the auxiliary electrode may be Ni, Fe, Co, Ag, an oxide coated metal, Raney nickel or nickel boride. The auxiliary electrode should have low hydrogen overvoltage. The auxiliary electrode may be placed between the anode and cathode, or disposed horizontally beneath the anode or is "U"-shaped to embrace the anode. Suitable separators are employed.
Patent GB-948687-A (GB)
Title: Process for producing acrylic acid and acrylic acid methyl ester
IPC: B01J27/186
Filed: 1961-12-21
Abstract: Acrylic acid is prepared by reacting propylene, preferably admixed with steam, with air and/or oxygen at elevated temperature with a catalyst of empirical formula FeaBibPcModOe, the initially aqueous acrylic acid being separated, and the acrolein containing gas mixture with starting components recycled.  The elements iron, bismuth, molybdenum and phosphorus are used in the catalyst as oxides and a and b independently represent 0.1 to 12, c represents 0 to 10, d represents 12 and e represents 35 to 81, and the catalyst may be on a carrier, and as a solid or flowing bed catalyst.  The product acrylic acid, possibly with acetic acid may be esterified in a further stage with a sulphuric acid catalyst, by introducing methanol at a lower stage and separating acrylic acid methyl ester and acetic acid methyl ester and methanol as an azeotrope from the head of the stage followed by separation of the acrylic acid methyl ester. Apparatus (Figure) comprising a reaction vessel, 5, condensation column 7, with a still 8 and condenser 9 to separate dissolved acrolein, together with an esterification column 16 into which methanol is introduced 26, and from which an azeotropic ester and methanol mixture is condensed 18 and then worked up, is described. Specifications 740,005, 782,430 and 908,655 are referred to.
Patent GB-970187-A (GB)
Title: Garments and methods of making the same
IPC: A41H3/00
Filed: 1962-12-10
Abstract: 970,187. Shirts. W. W. ARTZT. Dec. 10, 1962, No. 46585/62. Heading A3V. The invention comprises a one piece upper garment with downwardly sloping shoulders and a method of making the garment. Blanks are cut from tubular material as shown in Fig. 1, the medial line 28 of the sleeves and shoulders being at an acute angle to the central line of the back to produce a garment with sloping shoulders. The front may be slit and the edges folded under to provide abutting seams and tapes may be applied to the two parts to hold them in overlapping relationship. Specification 697,576 is referred to.
Patent GB-1434312-A (GB)
Title: Multi-conductor cable connector apparatus for telephone and other data transmission systems
IPC: H01R4/24
Filed: 1973-10-05
Abstract: 1434312 Signalling circuit connector BUNKER RAMO CORP 5 Oct 1973 [16 Oct 1972] 46707/73 Heading H2E A connector apparatus for use, e.g. in telephone systems, comprises a fixed connector 28, Fig. 1 with an insulator base 71, including within polarized receptacle 75 terminal block 81, having projecting front engagement contacts 84, Fig. 10, each constructed to contact, by insulation penetration, a conductor inserted between its bifurcations 86, 87; means 121 for mounting cable 35 connected to a data transmission system, each conductor 122 entering receptacle 75 and connecting to a contact 84; and cable connector 27 of telephone instrument 21, Fig. 1A, having terminal block 42, polarized as receptacle 75, having sockets 46, Fig. 5, arranged in the same pattern as contacts 84, a means 61 for mounting cable 25 in a covered channel with each conductor connected by soldering to the end 54 therein of the contact 49 in each socket 46; connector 27 being mounted by having its terminal block 42 pushed into receptacle 75 so that contacts 49 and 84 engage. Cover 72 has open and closed positions with receptacle 75 exposed, so that connector 27 may be mounted, and covered respectively and integral latch 134 engaging integral lug 135, and can hold connector 27 on to base 71 and block 42 in receptacle 75. Contacts 84 are held in the sockets of blocks 81, which may be a separate member of moulded plastics, by a removable cover on its bottom and each engages a shoulder in a socket. Receptacle 75 formed by walls 76, 77, 78, 79 moulded integrally with base 71 affords stop surface 120 engaging ledge 60 to maintain wiring space between surface 50 and terminal block 81. Wall slots 101 admit cable conductors 122 clear of surface 50. Cover 72 is hinged to base 71 by a thin membrane 72 of the same material. Each female contact 49 has two C-shaped end portions 51 engaging the short and long walls of socket 46 joined by linear portions 53 parallel to the long side walls. Shoulder 48 is engaged by integral mounting tab of contact 49 against withdrawal, insertion being limited by rim 47. The connector apparatus may in addition include a multi-instrument fixed connector station 32 with a third terminal block substantially larger than blocks 81 and 42 to allow direct mounting of connector 27 on any one group of its contacts. Cover 74 preferably has transverse ribs. Each contact 84, Fig. 10, has a wedge shaped base 85 and a pair of arms 86, 87 separated at their lower end by opening 88, abutting at 89 when no conductor is inserted, one arm 91 being hooked leaving space 93 for conductor insertion. Its thickness equals that of its socket. A slotted stress bar 102 is included on base 71 for receiving cable 27. The connector is wired by mounting cable 35 on base 71 inserting conductors 122 into contacts 84, and instrument 21 is connected by plugging in connector 27 and closing cover 72.