baber/WOPTO huggingface dataset:
Patent GB-1297506-A (GB)
IPC: B29C49/06
Filed: 1970-01-20
Abstract: 1297506 Injection - blow moulding S FISCHER 20 Jan 1970 [28 Jan 1969] 2655/70 Heading B5A  During the injection-moulding of a preform for blow-moulding, the thermoplastic material is heated to its critical temperature and passed through a narrow passage into the mould causing a rise in temperature. As shown in the figure, material is injected by worm 12 through conical passage 14 and constriction 17 into the injection mould cavity 19. A recess 24 forming an expansion chamber may be provided in the mould core opposite opening 17. The cavity 19 may be of constant wall thickness and either of constant diameter as on the left of the figure or stepped to different diameters on the right. Further constrictions may be formed at the stepped portions by axial adjustment of the core which assumes position for the desired preform shape shortly before conclusion of the injection. The core comprises relatively movable parts 20, 21, the inner part 21 having an air passage 22 with radial passages 23 closed during injection and opened for blow moulding by displacement of outer part 20. The core may have heating or cooling passages.
Patent GB-1297932-A (GB)
IPC: D04B11/00
Filed: 1969-02-12
Abstract: 1297932 Knitting machines WILLIAM COTTON Ltd 30 Jan 1970 [12 Feb 1969] 7481/69 Heading D1C In a straight-bar knitting machine wherein the variable draw mechanism for the slur cam and thread carrier driving members is controlled by adjustable selvedge stops and the additional traverse of the slur cam is provided by an additional draw mechanism controlling the slur cam driving member, to effect additional movement to it. An eccentric main draw cam I operates between rollers 3, 4 carried respectively on pivoted arm 5 and lever 7 connected by a link 9. Lever 7 is also connected by link 10 to variable draw lever 11 which includes a lead screw 13 and a screw nut 14. Selvedge stops S1, S2 are carried on oppositely threaded lead screws L1, L2 connected together for adjustment and carry thread carrier bars Tl, T2 carrying stops ST1, ST2 which are thus adjusted with stops Sl, S2. Thread carriers are mounted by friction means on carrier rod CR which reciprocates along needle bar NB in a fixed traverse, the thread carrier traverse being limited by stops ST1, ST2. Screw nut 14 is slidable in a guideway 15a in a member 15 connected to horizontal bars 16, 17 slidable in guide brackets 18 to 21 and connected by link 22 to main draw lever 23 connected to a driving bar 25a which through the selection mechanism SM is coupled to any one of the thread carrier rods CR. An additional eccentric cam 26 on shaft 2 is engaged by rollers 27, 27a on levers 28, 28a connected by link 28b, lever 28a being connected by link 29 to additional draw lever 30 pivoted to main draw lever 23. Lever 30 is also connected through releasable catch 30a to slur bar SB which carries slur cams SC. Thus as lever 23 moves the traverse bar 25a it carries with it lever 30 to traverse slur bar SB and towards each end lever 30 gains on lever 23 until it has carried the slur cams a required distance further. Specification 1297933 is referred to.
Patent GB-1311095-A (GB)
Title: Alkylene oxide orthotolylene diamine compositions
IPC: C08G65/26
Filed: 1969-04-09
Abstract: 1311095 Alkylene oxide-ortho-tolylene diamine adducts IMPERIAL CHEMICAL INDUSTRIES Ltd 25 March 1970 [9 April 1969] 18214/69 Heading C2C [Also in Division C3] The invention comprises a polyol compos ition containing from 10 to 100% by weight of (a) a polyol of the formula where n is 0 or 1, a, b, c, d are integers, the sum of which is at least 5, and R is an alkylene radical containing at least two carbon atoms and from 90 to 0% by weight of (b) another polyol which is the reaction product of an alkylene oxide and a compound containing a plurality of active hydrogen atoms. They are prepared by reacting a composition containing the desired amount of an ortho-tolylene diamine with an appropriate amount of one or more alkylene oxides. The composition to be reacted may contain 2, 4 and/or 2,6-tolylene diamine, glycerol or triethanolamine. The polyol composition may be reacted with an organic polyisocyanate, e.g. tolylene diisocyanate or methylene bis- or polyphenylisocyanates, to form polyurethane compositions.
Patent GB-1312618-A (GB)
Title: Power system simulator
IPC: G06G7/63
Filed: 1969-09-19
Abstract: 1312618 Power supply simulator ENGLISH ELECTRIC CO Ltd 18 Sept 1970 [19 Sept 1969] 46224/69 Heading G4G An apparatus for simulating an A.C. power distribution system comprises a network of components, the configuration of the network being identical to that of the system, and the components being such that phase angle and frequency changes in bus-bar voltages are represented by functions of voltages between selected points of the network and power changes are represented by a function of the current in the analogous component of the network. In Fig. 4 the inertias and reactances of three generators are represented by capacitors C 1 ,C 2 , C 3  and inductors L 1 , L 2 , L 3 , the generators feeding bus-bars which are interconnected by lines having reactances represented by inductors L 4 , L 5 , L 6 . It is shown that the machine e.m.f. phase changes can be represented by voltages v 1 , v 2 , v 3  and bus-bar phase changes by voltages v 4 , v 5 , v 6 , and power changes by the rate of change of the current in the analogous component. In order to take account of the damping effect of the generator, the latter may be represented by a network including resistors and inductances. D.C. links in the system may be represented by passive components or operational amplifiers.
Patent GB-1313233-A (GB)
Title: Vernier calibrated dial
IPC: G01D13/10
Filed: 1971-10-25
Abstract: 1313233 Vernier scales D HATCH 25 Oct 1971 49398/71 Addition to 1250475 Heading G1M Relatively rotatable superimposed vernier dials 1, 2 carry respectively, markings 5 dividing the disc 1 into exactly 30 degree intervals, and markings 6 dividing the disc 2 into 33 degree intervals. The disc 2 also carries a 30 degree interval inner scale adapted to show through  a window 4 in disc 1. Rotation of the disc 1 by turning knob 3 brings a number of 30 degree intervals to view through the window 4 and the odd interval differences of (33-30) degree is read off disc 2 by seeing which point 6 aligns with a point 5, number 7 point on the 6 scale in this case. The scales on the discs 1 and 2 may be inter-changed, and both discs may be rotatable if the relative setting of two shafts is to be read. In Fig. 2, the discs are marked on their bevelled edges 8 and 10 to facilitate reading.
Patent GB-1314174-A (GB)
Title: Gas liquefaction process
IPC: F25J1/02
Filed: 1969-08-27
Abstract: 1314174 Gas liquefaction process BRITISH OXYGEN CO Ltd 19 Aug 1970 [27 Aug 1969] 42713/69 Heading F4P Liquefaction of a compressed gaseous feedstock, e.g. natural gas or nitrogen, is effected by cooling in heat exchangers 2 to 6 to which a portion of a refrigerating fluid of increasing volatility is introduced separately in the direction of feed stock flow at expansion valves 12, 14, 23; each fluid being obtained in the liquid state by fractional condensation of a gaseous refrigerant mixture in a refrigeration cycle and expanded at said valves 12, 14, 23, there being at least two separate cycles each providing the major part of the cooling of at least two exchangers. The first cycle comprises a compressor 8 which delivers a mixture of pentane, butane, ethane and ethylene through a water cooler 10 into a phase separator 11. Liquid bottoms are expanded at valve 12 and the evaporating liquid cools exchanger 2 after which the vapour is returned to the compressor inlet. Gas from separator 11 is cooled and partly liquefied in exchanger 2, separated at 13 and liquid bottoms are expanded at 14 and evaporate in exchangers 3, 2 before being returned to the compressor inlet. Gas from separator 13 is cooled in exchangers 3, 4 and is expanded at a valve 15 and returned through exchangers 4, 3, 2 to the compressor inlet. A second cycle comprises a compressor 20 which delivers a mixture of propane, ethane, methane and nitrogen through a water cooler 19 and exchanger 2, 3, 4 into a phase separator 22; the bottoms liquid therefrom being expanded at 23 whilst top gas is expanded at 24.
Patent GB-1320906-A (GB)
Title: Production of phthalocyanine pigments
IPC: C09B67/00
Filed: 1969-08-13
Abstract: 1320906 Preparing phthalocyanines CIBA GEIGY (UK) Ltd 12 Aug 1970 [13 Aug 1969] 40453/69 Heading C4P Phthalocyanine blue pigments substituted by at least 0À3 halogen atoms or nitro groups per molecule are prepared in a high-boiling point, i.e. above 100‹ C. inert organic solvent, stirred with concentrated sulphuric acid (i.e. 84- 100%), drowned out into water or aqueous alkali and the solvent steam distilled off. The solvents used include kerosenes, o-di- or trichlorobenzene, o-nitrotoluene and preferably nitrobenzene, the amount of solvent being 2-10 parts by weight per part of phthalocyanine. The sulphuric acid is preferably 90-100% acid and 2 to 8 parts per part by weight of phthalocyanine are used. The water or aqueous alkali used is preferably 5 to 15 times the amount of acid. In a preferred embodiment (a) a dispersing and/or softening agent may be added to the pigment mixture and may be precipitated with dilute sulphuric acid, a salt of a Group IIa metal or an amine salt; and (b) a non-flocculating agent may be added. The pigments are used to colour inks, plastics, paints and lacquers.
Patent GB-1329575-A (GB)
Title: Group communication apparatus
IPC: H04M3/56
Filed: 1970-01-26
Abstract: 1329575 Telephone apparatus; directional systems A A L REID 19 Jan 1971 [26 Jan 1970] 3666/70 Headings H4J H4K and H4R Audio signals from a set of microphones one for each of a group of persons in conference positions at a first telephone station are multiplexed on a telephone line, transmitted to a further station and distributed to corresponding loud-speakers disposed at vacant conference positions among a further group of persons. As described a circular table is located at each station, alternate seating positions are occupied and have microphones directed outwardly while the remaining positions have loud-speakers which are directed inwardly and simulate further parties disposed in corresponding locations of a similar arrangement at the other end of the telephone link. Each microphone and loudspeaker has an associated indicator lamp which is lit when the microphone or loudspeaker is operative. A comparator tree (Fig. 2, not shown) at each station compares the microphone outputs with each other and with a reference, which is either a fixed reference level or the loudest microphone output from the other station (whichever is the greater), and selects the loudest signal. If this is from a local microphone the lamp at that microphone is energized and a logic unit which receives the outputs of the comparator transmits a selected frequency or frequency combination to the other station where it is used to select the corresponding loud-speaker. The outputs of all local microphones may be connected to the line or to reduce background noise the lamp signal may couple only selected microphone to the line. If the loudest signal is the fixed reference level a loud-speaker located at the centre of the table at the other station is energized. During such moments any party may by depressing a button at his microphone produce a simulated speech signal indicating that that party desires to speak. The arrangement may be extended to cover more than two stations.
Patent GB-1335298-A (GB)
Title: Testing device for use when making bacteriological tests
IPC: C12M1/20
Filed: 1971-10-26
Abstract: 1335298 Microbiological testing E A KLINGSTROM and S M JOHANSSON 26 Oct 1971 49792/71 Heading C6F [Also in Division B1] A device for testing bacteriological samples, including urine, with antibiotics consists of circular discs 5 made from a porous material e.g. filter paper, for impregnation with antibiotics inter-connected by arms 3 of the same material, and the connecting arms are impregnated at least within the area 7 adjacent the discs with a substance (wax, paraffin, resin or plastics material) which breaks the capillary properties of the porous material, thereby preventing the antibiotic from spreading into the arm and are provided with a graduated scale 9. The series of discs may be impregnated with various antibiotics forming a combination for determining a group of bacteria or type of infection. One of the discs may be left free from antibiotic. The device may alternatively be in the form of a strip or network.
Patent GB-1337060-A (GB)
Title: Process for producing a solderable composite panel including a  silver-cadmium oxide panel particularly for use in making  electrical contacts
IPC: H01H1/023
Filed: 1971-12-09
Abstract: 1337060 Making electrical contacts; welding by pressure DR EUGEN DURRWACHTER DODUCO 9 Dec 1971 57159/71 Headings B3A and B3R  In producing solderable AgCdO material an unheated AgCd alloy panel and a silver panel preheated to 200-950‹ C. are pressed together at a pressure of 0À5-5 tons/cm.<SP>2</SP> and the AgCd alloy is subsequently internally oxidized. An AgCd alloy with a cadmium content of 13-4% and an addition of 0À2% Ni is melted, cast to form a bar, rolled, cut into a panel and one surface is brushed clean. The panel is laid on the lower press table of an hydraulic press and a thinner silver panel, also brushed clean, and heated in a furnace to 900‹ C. is laid on the brushed surface of the AgCd panel. The press presses the panels at 1 ton/cm.<SP>2</SP> and the welded composite panel is rolled in a single pass with a degree of deformation of 30-70% and internally oxidized at 600‹, 700‹ or preferably 800‹ C. for 24 hours in an oxygen atmosphere at 1-5 atmospheres. Electrical contacts are cut from the composite panel, the silver side of the contact being soldered to a circuit terminal.
Patent GB-1337591-A (GB)
IPC: H02K31/02
Filed: 1970-02-05
Abstract: 1337591 Current collection in dynamo-electric machines INTERNATIONAL RESEARCH & DEVELOPMENT CO Ltd 19 April 1971 [5 Feb 1970] 5643/70 Heading H2A In a dynamo-electric machine having a first brush/current-collector arrangement for transferring direct current from the stator to the rotor and a second brush/current-collector arrangement for transferring current from the rotor to the stator, the brush of one arrangement is mounted on the rotor and the brush of the other on the stator. The machine may be a turbogenerator or a homopolar machine. The drum-type homopolar machine of Fig. 1 has two sets of superconducting stator windings 11a 11b, 12a, 12b and a drum rotor 13 having around its periphery either discrete conductors 15 or a continuous cylindrical sleeve. Brushes 16a carried by the drum at one of its ends engage a frusto-conical surface of a collector 16b which is urged laterally (A) so as to compensate for brush wear. At the other end of the drum brushes 17a on the stator engage a collector 17b on the drum in the conventional manner. The disc-type homopolar machine of Fig. 2 has a superconducting stator winding 21 and a rotor comprising a support disc 22 carrying two segmented conductive discs 24, 25. Each conductive disc has at its inner periphery brushes 33, 34 engaging a current collector 35, 37 on the stator and at its outer periphery a current collector 24a, 25a engaging brushes 27, 28 on the stator. In either embodiment the current collectors may be continuous or divided into mutually-insulated segments. The brushes may, likewise, form a substantially continuous ring or comprise a number of separate brushes. The brushes are composed of carbon blocks metal-coated carbon fibres held in bundles in crimped tubes, metal/ graphite or silver/molybdenum disulphide.
Patent GB-1345208-A (GB)
Title: Electrode connection
IPC: H01R4/50
Filed: 1972-08-22
Abstract: 1345208 Making electrical connections LENNOX FOUNDRY CO Ltd 22 Aug 1972 [1 Sept 1971] 40808/71 Heading B3A [Also in Division H2] A high-silicon iron anode 12 is cast around an oval steel tube 10 having a flattened end 20 so that the bare end 14 of a cable 16 can be connected to the anode by being wedged into the tube by a tapered pin 18 driven in with a punch or drift. The connection is insulated by filling an enlarged hole 13 with epoxy resin 22.
Patent GB-1345706-A (GB)
Title: Splints
IPC: A61F5/058
Filed: 1970-05-15
Abstract: 1345706 Splints S A HALLETT 13 May 1971 [15 May 1970] 23540/70 Heading A5R A splint comprises a rigid frame member 10 for extending alongside a fractured limb, a movable member 32 slidably mounted to the frame-member 10 and adapted for securing to the limb below the fracture, a traction mechanism 12 for providing controlled incremental advance of the movable member 32 and a pressure member 22 mounted to the frame member and adapted to engage the body of the patient above the fracture. Slidable support members 42 lie between the movable member 32 and pressure member 22. The members 42 have a curved plate 44 to support the limb and a tubular part 46 which is slidable on the frame 10 and partly cut through to provide a portion (50) Figure 2 (not shown) with a flange 52 for clamping the support member 42 on the frame-member 10. The traction mechanism has a cord 16 releasably connected to the foot plate 28. The cord is wound on a pulley (62) Figure 5 (not shown) in the housing 12, the pulley (62) having ratchet teeth (64) which operate against a releasable pawl (66). The spindle (54) of the pulley is connected at one end to a hand wheel 14 and at the other to a self-winding spring (76) Figure 6 (not shown). The spring (76) is sufficiently strong to wind in the cord when not in use but to apply traction the hand wheel 74 must be used. Traction may alternatively be applied by a screw device or rack and pinion. All parts of the splint which may be located in the region of the fracture are preferably made of glass fibre reinforced plastics material which is X-ray transparent. The splint as shown is used for either leg but may be modified for an arm or hand fracture.
Patent GB-1346139-A (GB)
Title: Process for the activation of solid body surfaces
IPC: D06P1/673
Filed: 1972-05-22
Abstract: 1346139 Activation of fibre materials GLASSEIDENWERK OSCHATZ VEB 22 May 1972 23958/72 Headings D1B and D1P Fibres and filaments, e.g. glass, polyester, polyacrylonitrile and polyamide fibres are activated by passing through a plasma beam preferably at 10,000 to 30,000‹C and formed, e.g. by means of a gas burner, and treated with a monomeric, to polymeric organic compound and/or inorganic compound (as defined) before and/or during and/or after activation. Preferably the activated fibres are dyed in a dyebath or in a stream of dye solution to which crosslinking agents, plasticiser, and catalysts may be added. Ceramic, stone and rock fibre materials are also specified. Compounds may be used which improve hydrophilic properties, reduce electrostatic charging or provide better adhesion to synthetic resins.
Patent GB-1347010-A (GB)
Title: Display devices
IPC: G09F5/04
Filed: 1971-12-23
Abstract: 1347010 Sheet material display devices NOTT & CO Ltd 23 Dec 1971 [23 Dec 1970] 61132/70 Heading A4T A display device for samples of flexible sheet material comprises a plurality of hinged-together sections 1, 2 forming a zig-zag construction with material samples 3 secured to alternate sections such that, when the backing is folded together, the samples lie close alongside each other, and when unfolded and laid flat or hung downwards, the samples lie in staggered overlapping relationship so that a portion of each may be seen simultaneously. The backing may be creased board or plastics with weakening lines, or separate sections hinged together by flexible strips, or the sections may be detachably joined together. End covers 4 may be provided at one or both ends with fastening means, and may cover the samples. To facilitate folding the backing, a cord 5 connected to an end section passes through apertures in all the sections to a pull handle 6 at the other end.
Patent GB-1353555-A (GB)
Title: Measuring instrument mounts
IPC: F16C11/06
Filed: 1971-11-15
Abstract: 1353555 Universal pivots W F STANLEY & CO Ltd 14 Nov 1972 [15 Nov 1971] 52981/71 Heading E2F  In a measuring instrument mount, e.g. for supporting surveyor's levels 1, a universal adjustment arrangement is provided comprising a first bearing member 8 having a part-spherical bearing surface 10, a second bearing member 9 having a bearing surface in contact with the part-spherical bearing surface 10 of the first bearing member 8 and a dish spring 12 acting between the first and second bearing members for loading the surfaces together. The spring 12 acts on a further bearing surface located on the first bearing member behind the part-spherical bearing surface through a ball bearing arrangement 15. Adjustment of the load on the bearing surfaces is achieved by bolts 13, 17 screwed into bearing member 9. Adjustment of the level 1 is achieved through a thumb wheel 6 and the level 1 is mounted on a block 4 through a leaf spring 5.
Patent GB-1353734-A (GB)
Title: Acoustic surface wave devices
IPC: H03H9/02
Filed: 1970-07-01
Abstract: 1353734 Acoustic surface wave devices PLESSEY CO Ltd 30 June 1971 [1 July 1970] 32006/70 Heading H3U Acoustic surface waves in the surface 2 of quartz or lithium niobate, piezoelectric substrate 1 pass between input and output interdigitated electrodes 3, 4 via reflecting elements 8, positioned in accordance with the desired filter characteristics, each of which comprises a pair of plate electrodes 10, between which a D.C. voltage is applied, on opposite surfaces of substrate 1. A single plate on one side of the substrate may be common to all the reflecting elements. Alternatively, the elements 8 comprise interdigitated conductive elements, similar to electrodes 3, 4 whose fingers are adjusted in shape, position and number to give a desired filter characteristic, and may receive a D.C. voltage, or be tuned by their own configuration, or by external capacitors or inductors.
Patent ID-29193-A (ID)
Inventor: HAGENAUER JOACHIM
IPC: H04B7/005
Filed: 1999-11-19
Abstract: A method, base station and subscriber station which use recursive systematic codes (RSC codes) for channel coding in GSM mobile radio systems. In addition, these RSC codes also can be used on the basis of the hardware installed in existing GSM mobile radio systems. The RSC codes can be introduced during the introduction of an adaptive multirate coder.
Patent IL-104425-A (IL)
Title: Reduction of the formaldehyde content in microcapsule formulations
IPC: C08L61/20
Filed: 1993-01-18
Abstract: A process is disclosed for the reduction of the formaldehyde content of a formulation of amino resin microcapsules which comprises treating the microcapsule formulation with from about 0.03 wt. % to about 0.75 wt. % of ammonia. Also disclosed are the microcapsules formed by the process.
Patent IL-108002-A (IL)
Title: Method and apparatus for controlling the configuration of a printer
IPC: G06F3/12
Filed: 1993-12-13
Abstract: A work station user selects a desired printer default configuration. Thereupon an address exclusively associated with the selected default configuration is appended to the print data sent from the work station to the printer. Default configuration setting circuitry provided, e.g., in a circuit card installed in the printer receives the address and, via a look-up table, provides instructions for implementing the default configuration associated with the address. The printer is then configured in accordance with the selected default configuration.