baber/WOPTO huggingface dataset:
Patent GB-1051283-A (GB)
IPC: H03F3/26
Abstract: 1,051,283. Transistor amplifying circuits. TELEFUNKEN PATENTVERWERTUNGS G.m.b.H. April 6, 1965 [April 15, 1964], No. 14517/65. Heading H3T. The invention relates to a negative impedance converter of the type comprising input 1, 1<SP>1</SP>, Fig. 1, and output 2, 2<SP>1</SP> terminals, terminals 1<SP>1</SP>, 2<SP>1</SP> being connected together and 1 to 2 via two series-connected resistors Ra, Rb: an amplifier V has its input terminals A, B connected respectively to the join of resistors Ra, Rb and the terminals 1<SP>1</SP>, 2<SP>1</SP> and its output terminals C, D to the terminals 1, 2 respectively. Alternatively terminals A, B and C, D may be interchanged. According to the invention the amplifier V is of transistor type, being directcoupled, balanced and without inductances. As shown, the terminals A, B comprise the bases of a pair of PNP transistors Ts1, Ts2, Fig. 2, having a common emitter resistor R 1  and equal collector loads R 2 , R 3  respectively. The collectors are direct coupled to the bases of a pair of NPN transistors Ts3, Ts4 having a common emitter resistor R 4  and equal collector loads R 5 , R 6  respectively, the output terminals C, D being connected to the collectors. The upper frequency limit of the arrangement may be restricted by means of capacitances each optionally in series with resistance, connected between the collectors of transistors Ts1, Ts2 or terminals A, B or C, D.
Patent GB-1051312-A (GB)
IPC: H01J29/87
Abstract: 1,051,312. Coatings. EASTMAN KODAK CO. Feb. 13, 1964 [Feb. 14, 1963], No. 6023/64. Heading B2K. [Also in Division H1] A coating forming an implosion barrier on the faceplate of a cathode-ray tube comprises a cellulose acetate propionate or cellulose acetate butyrate layer on top of an optically clear adhesive primer, e.g. polyvinyl alcohol polyvinyl acetate, polyvinyl butyral, a ureaformaldehyde resin, an alkylated ureaformaldehyde resin or a mixture of cellulose acetate butyrate and a urea-formaldehyde resin. The cellulose ester composition may include toluene and isobutyl alcohol.
Patent GB-1051798-A (GB)
IPC: D05B3/24
Abstract: 1,051,798. Ratchet gearing. SINGER CO. July 14, 1965 [July 16, 1964], No. 29761/65. Heading F2Q. [Also in Divisions D1 and E2] In a buttonhole sewing machine a sleeve 133 is rotatable on a shaft 91 and is rigid with a ratchet wheel 134. A sleeve 145, axially slidable but non-rotatable on shaft 91, is separated from sleeve 134 by a compression spring 148 and is reciprocated on shaft 91 during operation of the machine by engagement with a member 150 rigid with the needle bar. A plate 153, pivoted at 152 to sleeve 145, carries an upstanding pawl member 154 biased by a spring 156 against ratchet wheel 134. An inclined pawl surface 155 on member 154 serves to rotate ratchet wheel 134 on upward movement of sleeve 145.
Patent GB-1051957-A (GB)
IPC: E01D19/06
Abstract: 1,051,957. Expansion joints. R. L. PARE. April 2, 1965, No. 14031/65. Heading E1G. A roadway expansion joint comprises an elastomeric rectangular block 60 having an elongated bar 63 embedded therein nearer the bottom than the top, the bar being narrower than the block. The block has cavities 55 positioned mainly laterally of the bar and may have transition cavities 61. The block is secured to the concrete slabs 36, 37 of the roadway by bolts 65 passing through bonded metal end blocks 50, an embedded plate or bonded top and bottom plates. Alternatively the block may have a dovetail section to mate with metal edge members 42, the angles of the dovetails allowing downward movement of the block under axial load. The central block may be in tongue and groove and spline connection with separate voided blocks in similar connection with the securing blocks.
Patent GB-1052416-A (GB)
IPC: H05K7/14
Abstract: 1,052,416. Two-part couplings. STANDARD TELEPHONES & CABLES Ltd. March 12, 1964 [March 19, 1963], No. 10470/64. Heading H2E. [Also in Division H1] In a mounting arrangement 1, Fig. 1, for electrical components, six printed circuit boards 9 are secured between insulating retaining members 10 to form a hexagonal section tube 2, the boards extending through slots in members 10 and terminating in plug portions bearing printed terminals 12, which engage hexagonal female socket members 3, 3a. Tube 2 and female members 3, 3a are held together by a central bolt 4 and nut 8. Each female member 3, 3a comprises slots 20, Fig. 2a (not shown), which receive the plug portions of boards 9, and apertures 18 accommodating connectors 19 which receive terminals 12. A key 21 in each slot 20 engages a guide slot 22 in boards 9, and the central hole 6 in members 3, 3a is also keyed to co-operate with a slot 5 in central bolt 4. In female member 3, connectors 19 are in contact with signal leads 13, which emerge from the far side of member 3; in female member 3a, patching conductors 14a of an encoder arrangement 14 contact connectors 19; alternatively, encoding conductors may be mounted on a hollow hexagonal insulating member (Fig. 7, not shown), and plugged into member 3a. Power for the assembly is supplied via power leads 13a which pass into apertures 16 in female member 3 which engage power terminals 15 on the tube 2. Terminals 15 pass into a commutator arrangement 33, Fig. 3 (not shown), being connected to a plurality of corrugated conductor members 34, Fig. 5 (not shown), axially spaced in circumferential grooves in an insulating cylinder, by radial conductors 40; peaks 36 of the members 34 contact the power wiring on the inner sides of boards 9. Components 27 are also disposed on the inner sides of boards 9, being insulated from the power wiring by insulating tape 28 and connected to signal wiring on the outer surface of the board by leads passing round edge slots 29 in the boards. A plurality of tubes 2 may be mounted in a single coaxial arrangement, couplings between tubes being effected by intermediate female socket members. Members 3, 3a and 10 are apertured to permit the passage of cooling fluid through the assembly.
Patent GB-1053926-A (GB)
IPC: G01F1/68
Abstract: 1,053,926. Measuring fluid flow electrically. JOHNSON SERVICE CO. June 27, 1963, No.35705/66. Divided out of 1053925. Heading G1N. The description is identical with that of the parent Specification, but the claims relate to the two abutting thermistors in the fluid flow path, the one being heated by a separate D. C. supply, and cooled by the fluid flow, and the other being connected in an A. C. bridge to measure the resultant temperature.
Patent GB-1143623-A (GB)
IPC: G05D16/16
Abstract: 1,143,623. Fluid-pressure servomotor systems. WESTLAND AIRCRAFT Ltd. Jan. 31, 1967 [Feb. 7, 1966], No. 5358/66. Heading G3P. The maximum pressure in the control pressure chamber 17 of an aircraft cabin discharge valve (not shown) is limited, e.g. in the event of failure of the normal control, by a control device comprising a body 1, 11, 23 containing a pressure responsive diaphragm 29. The diaphragm is loaded by a spring 41 toward stops 42 and the underside is maintained at static pressure through passage 25, 26, 27 and connection 62, whilst the top side is subject to cabin pressure through a screen 24. When a predetermined pressure in the main valve control chamber, and hence in cabin pressure, is exceeded, the diaphragm 29 moves downward, carrying a stirrup 38 with an adjustable bolt 40 which moves an inner diaphragm portion 43 against an actuating pin 50 to open a relief valve housed in a bore 5. The control pressure chamber is thereby relieved through an upstream passage 14 and downstream passage 8 to a vacuum connection 9, and the cabin pressure is thereby restored. To indicate excessive cabin pressure, the bolt 40 in an upper position actuates a micro-switch 57 through a diaphragm 51. Leads to an alarm circuit are led out through a connection 69.
Patent GB-1230171-A (GB)
IPC: A01K7/02
Filed: 1968-02-22
Abstract: 1,230,171. Valves. R. J. SEYMOUR. 11 Feb., 1969 [22 Feb., 1968], No. 8583/68. Heading F2V. In an animal water-feeding apparatus, a trough 14 having formed integrally therewith two upstanding lugs 15, is pivotally mounted, by way of the lugs, upon a bracket 16 secured to a horizontally extending water pipe 10, the pipe having downwardly depending therefrom a duct 11 within the lower extremity of which there is a gravity-operated valve member 12. In operation, and in the absence of sufficient water in the trough, a counterweight 18 pivots the trough in a clockwise direction as a result of which a ledge 19, secured to the trough, engages valve member stem 13 and so opens the valve. An increase in the weight of water in the trough tends to pivot the trough in an anticlockwise direction so resulting in closure of the valve 12. In a modification, the counterweight 18 may be replaced by a spring extending between the receptacle and the pipe.
Patent GB-1231073-A (GB)
IPC: C10M141/10
Filed: 1968-05-02
Abstract: 1,231,073. Lubricants. FARBWERKE HOECHST A.G. 2 May, 1968 [5 May, 1967], No. 20884/68. Heading C5F. An extreme pressure additive for lubricating oils comprises 70-95 wt. per cent of a chlorinated C 8 -C 30  hydrocarbon containing 30-70 wt. per cent chlorine and 30-5 wt. per cent of a tertiary organic trithiophosphite. The hydrocarbon may be a paraffin and the thiophosphite may be triphenyl-, tridodecyl-, trinonyl-, tri- (nonylphenyl)- or diphenyl-dodecyl-trithiophosphite.
Patent GB-1234014-A (GB)
IPC: H01M4/86
Filed: 1969-04-02
Abstract: 1,234,014. Electrocatalysts. BATTELLEINSTITUT E.V. 2 April, 1969 [4 April, 1968], No. 17378/69. Heading B1E. [Also in Divisions C1 and H1] Catalysts for hydrogen fuel cell electrodes are WC containing one or more of TiC, ZrC, VC, NbC, TaC. They are mixed with polyethylene and active carbon and pressed to produce electrodes one face of which may be covered by porous PTFE.
Patent GB-1234372-A (GB)
IPC: B25B5/10
Filed: 1969-04-08
Abstract: 1,234,372. Clamps; stands. BREMSHEY & CO. 8 April, 1969 [19 April, 1968], No.18028/69. Headings B4W and B4X. [Also in Divisions A4 and E2] A stand for fixing to a table top &c. 11 in a vertical position comprises a rod 1, an arm 4 mounting a screw 7 for rotation about an axis parallel to the rod, and a jaw 8 pivoted to a slide 9 movable on the rod, the jaw having gripping surfaces 12 which clamp against the rod when the stand is fitted to a surface and the screw tightened the rod, the slide, and the jaw being of U-shaped cross-section. Each limb of the jaw may define, at its end adjacent the rod, a gripping surface 12 offset by a small angle from an abutting surface 13, these surfaces being cooperable with ends of the limbs of the rod (Fig. 4). The jaw 8 may have a pad P on its surface facing the screw, and the screw may have a pad 6 of resin at its end. Extensions 2, 3 normally folded into the channel of the rod, may be unfolded and secured in a vertical position. Reference is made to Specification 1,234,371.
Patent GB-1239370-A (GB)
IPC: B60T13/38
Filed: 1970-05-12
Abstract: 1,239,370. Fluid pressure brakes. ROBERT BOSCH G.m.b.H. 12 May, 1970 [13 May, 1969], No. 22822/70. Heading F2F. A vehicle brake system comprising a spring 2 which actuates the brakes and is released by air pressure from a reservoir by means of a piston 3 has a hand brake device 28 which biases a valve 32 to a closed position, when the brake is released, and to an open position when the brake is applied and a throttle formed by a pin 24 moving in a brake pipe passage 26 leading from the device 28 to the brake cylinder 5 can be moved in or out by a piston 20 dependent on the pressure in the pipe so that in the event of a broken pipe the spring operates gradually instead of abruptly.
Patent GB-1252630-A (GB)
IPC: G03G5/10
Filed: 1969-05-14
Abstract: 1,252,630. Coated paper. MITSUBISHI PAPER MILLS Ltd. 14 May, 1969 [23 May, 1968], No. 24610/69. Heading B2E. [Also in Divisions C3 and H1] Paper used as a base for electrophotographic coatings is coated with a composition comprising (A) at least one vinyl polymer which contains (i) carboxyl or primary, secondary or tertiary amino groups capable of reacting with epoxy compounds, and (ii) alkali metal salts of carboxyl or sulphonic acid groups or inorganic acid salts of primary or secondary amino groups or quaternary ammonium salts which render the polymer electrically conductive, and (B) a polyfunctional epoxy compound in a quantity sufficient to occupy the unneutralised carboxyl or amino groups. The epoxy compound may be present at 5-20% by weight of the vinyl polymer. Pigments and latices may also be present. In a typical example an aqueous solution of a methyl vinyl ether/maleic anhydride copolymer was partially neutralised with 0.75 equivalents (based on the COOH groups) of aqueous NaOH soln. to yield a 10% soln. with pH 7.8. To 100 parts: of this soln. was added 20 parts of 48% vinyl acetate emulsion and 1 part of ethylene glycol diglycidyl ether and water to give a total solids content of 10%. The paper may be subsequently coated with a photoconductive layer containing ZnO or TiO 2  dispersed in an insulating resin.
Patent GB-1256689-A (GB)
IPC: C22B9/18
Filed: 1970-06-17
Abstract: 1,256,689. Casting processes. BOHLER & CO. A.G. GEBR. 17 June, 1970 [17 June, 1969], No. 29507/70. Heading B3F. [Also in Division H5] In an apparatus for electroslag remelting, the consumable electrodes 40, 40<SP>1</SP> and the mould 10 are supported by holders 50, 50<SP>1</SP> and 20 which are displaceable along columns 30, 30<SP>1</SP>, each holder being composed of a guide piece 51, 21 which is displaceable on the column and a pivot part 52, 22 rotatable on the guide piece. A gear rim 53 or 24 is fixed to each pivot part and engages a pinion 54 or 25 carried by the corresponding guide piece and driven by an electric motor 55 or 26. The holders 50, 501 and 20 are displaceable on the columns by cables 56 and 27. The mould 10 rests on a copper base-plate 62 whose centre point lies vertically beneath the point of intersection of the arcuate paths of the two electrodes 40 and 40<SP>1</SP>.
Patent GB-1257913-A (GB)
IPC: G05B19/16
Filed: 1968-01-03
Abstract: 1,257,913. Programmed control of machine tools. MORFAX Ltd. Dec. 30, 1968 [Jan. 3, 1968], No. 28939/71. Divided out of 1, 257, 912. Heading G3N. A movable member of a machine tool is continuously positioned in response to a recorded variable frequency programme, comprising a reference signal and a displacement control signal, by a drive responsive to control signal and a feedback signal generated in dependence on the relationship between a rotary member driven by the reference signal and a rotary member driven to reproduce the member movement. As shown a tape reader 231 generates a reference signal which, through an amplifier 244, energizes a motor 116 driving a sector wheel 115. A lead-screw 111 rotates a light 119 and a photocell 141 from which is derived a feedback signal, representative of actual lead-screw movement, which is fed through an amplifier and shaper 154, phaseshifter 155 and a trigger device 157 to a phase comparator 153. The phase-comparator also receives the command displacement signal from the reader 231 through an amplifier 151 and a trigger circuit 152. The output of the phasecomparator 153 is fed through a decoder 158, an integrator 159 to a D.C. amplifier 161 energizing a motor 163 positioning the lead-screw 111.
Patent GB-1259288-A (GB)
IPC: D21F1/12
Filed: 1968-12-23
Abstract: 1,259,288. Seaming non-metallic sheet material. LINDSAY WIRE WEAVING CO. 23 Dec., 1968 [22 Dec., 1967], No. 38847/71. Divided out of 1,259,287. Heading B5K. The subject-matter is identical to that disclosed in Specification 1,259,287, but the claims relate to a fabric material comprising two portions joined to form a seam; the fabric having a plurality of polymeric warp filaments interwoven with a plurality of weft filaments; the warp filaments of the two fabric portions being cut to different lengths complementary in the two portions, and joined by adhesive in abutting relationship along two spaced generally parallel lines extending transversely to the general direction of the warp filaments; there being a plurality of interwoven weft filaments between the two lines; and the cut and joined ends of the warp filaments lying in planes making an angle to the general plane of the fabric.
Patent GB-1264933-A (GB)
IPC: B31B50/40
Filed: 1970-05-27
Abstract: 1,264,933. Making tubes. AKE SILVANDERSSON A.B. 27 May, 1970 [28 May, 1969], No. 25424/70. Heading F2P. In making a tube from strip material the material is drawn from a roll 8 over the edge of a shaping tube 2, the edge of which is at an oblique angle to its axis, and thence between the shaping tube 2 and a guide tube 1. The tube so formed is bent back around the end of the guide tube 1 between the tube 1 and a feed pipe 5 serving to supply products to be packaged in the tube and the overlapping longitudinal edges of the material are welded at 11, 12. The tube 2 is formed with overlapping edges at 10 so as to overlap the longitudinal edges of the strip material. The material is pulled through the apparatus either by reciprocating heat sealing jaws (Fig. 3, not shown) or by a pair of rollers (Fig. 4, not shown).
Patent GB-1265373-A (GB)
IPC: B25C1/14
Filed: 1969-04-28
Abstract: 1,265,373. Cartridge-actuated tool. HILTI A.G. 28 April, 1969 [20 May, 1968], No. 21513/69. Heading B4C. A cartridge-actuated fastener driving tool comprises a two-part barrel 8, 9 mounted for axial movement in a housing member 5, a fastener driving piston 18, a closure member 20 for closing the cartridge chamber 19, and a removable protective cap 13. The tool is illustrated in its operative condition, that is when pressed against a work surface. Release of the tool from the surface will initially cause the forward barrel part 9 to move forwardly relative to rearward barrel part 8 by a limited amount determined by a ring 11 engaging in groove 10 and biased by a spring 12. Subsequently the barrel will be urged forward relative to the housing member 5 by springs 25 and 21 until a circlip 20b or the closure member 20 engages a rear housing member 1. The barrel will then be moved to its forward inoperative position by the spring 25 alone. In the forward position a spring-biased ball 28 engages in a detent 8c. The springs 12, 21, 25 are such that the forward barrel part 9 cannot be moved rearwardly relative to the rearward barrel part until the latter is in the illustrated position. When the rearward barrel part is in the illustrated position and the forward barrel part 9 has not been moved rearwardly relative to the rearward barrel part, a line joining the muzzle end of the barrel and the  periphery of the cap makes an angle with the plane of the mouth of the cap not exceeding 7 degrees. Pivoting of trigger 29 about pin 31 initially cocks firing-pin 22 and then releases it, thus detonating a cartridge when the tool is pressed against a work surface. Forward housing member 2 which is secured to the member 5 is movable relative to sleeve 6 which is pivoted at 7 to the rear housing member 1. The tool is opened by rotating the housing member 2, 5 through 90 degrees, then sliding those members axially forwardly, and finally pivoting these members and sleeve 6 about the pin 7. A spring-urged safety catch 14 engages in an annular groove 9a when the barrel is in its forward position and the cap 13 is removed.
Patent GB-1266463-A (GB)
IPC: A01F12/18
Filed: 1970-03-25
Abstract: 1,266,463. Thresher for combine. A. J. VOGELENZANG, 25 March, 1970 [3 April, 1969; 10 Feb., 1970], No. 14409/70. Heading A1F. Cut grain is sucked from the cutting head of a combine harvester through tube 3 into a threshing unit. The thresher comprises a stationery threshing plate 1 formed as an extension of tube 3, and a rotating threshing plate 4. The rotating threshing plate has radial blades 6 and circumferential bars 16. The grain is forced by the airflow through the threshing unit into a separator 27 defined by housing walls 28, 29. The airflow in the separator is turbulent, to ensure good separation of thrashed grain and trash, because two air streams are made to impinge on each other head on. The first air stream is created by air flowing through the thresher unit, and has a circumferential component in one direction. 9 second air stream with a circumferential component in the opposite direction is generated by fan blades 9 and reversing baffles 24. The grain falls through sieves on the floor of chamber 27, and trash is removed upwards by the air stream. The space between the tube 3 and co-axial wall 29 may be used as a grain tank. A modification is described in which the rotating threshing plate rotates in a vertical plane. The thresher unit may be employed in combine harvesters having reciprocating or radial cutting heads.
Patent GB-1289777-A (GB)
IPC: H05B3/06
Filed: 1970-06-11
Abstract: 1289777 Clamps PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 19 April 1971 [11 June 1970] 28287/70 Heading E2B [Also in Division H5] An electric heating element is mounted in the wall of container 8 by means of a plate 3, a resilient sealing member 4 and a cap 5 fitted over the flanged aperture 9 and compressing the member 4. As shown, a resilient member 4 e.g. of black neoprene rubber, has the ends of two heaters 1, 2 passing through it and also a bolt 7 which when tightened causes the member 4 to expand and exert pressure around the periphery of the aperture. The aperture has a pipe on its flange 9 engaged by a deformation (14) on the cap 5.
Patent GB-1289900-A (GB)
IPC: C08L83/04
Filed: 1970-10-19
Abstract: 1289900 Organopolysiloxane elastomers WACKER-CHEMIE GmbH 19 Oct 1970 [20 Oct 1969] 49497/70 Heading C3T A curable composition for making organopolysiloxane elastomers comprises a diorganopolysiloxane possessing Si-bonded hydroxyl terminal groups, a silicon compound with at least 3 hydrocarbon radicals bonded to Si via oxygen and a metal salt of a monocarboxylic acid which is branched at an aliphatic carbon atom in the alpha-position to the carboxyl group and which possesses at least 8 carbon atoms per molecule and in which at least 50% of the number of carbon atoms in the said alpha position are quaternary carbon atoms. Preferred monocarboxylic acids from which the metal salts are derived can be represented by the general formula where R<SP>1</SP> and R<SP>2</SP> each denote alkyl, aryl, alkenyl or aralkyl groups and R<SP>3</SP> is H or has the same significance as R<SP>1</SP> and R<SP>2</SP> with at most 50% R<SP>3</SP> being H. R<SP>1</SP>, R<SP>2</SP> and R<SP>3</SP> or two thereof can be bonded together to form rings. The metal cation of the acid salt may be Sn, Pb, Zr, Zn, Mn, Sb, Fe, Co, Ni, Cr, Cd, Ca or Ba, and the cations may be substituted by organic radicals bonded to the metal via carbon. The diorganopolysiloxane is preferably of the formula (HO) x (SiR y O (4-y)12 ) n H in which R is a monovalent optionally substituted hydrocarbon radical, x=0À99 to 1À01, y=1À99-2À01, x+y=3, n is at least 3. Silicon compounds include silicic acid esters Si(OR<SP>1</SP>) 4 , wherein R<SP>1</SP> is a monovalent, optionally substituted hydrocarbon radical; silanes of the general formula RSi(OR<SP>1</SP>) 3  or HSi(OR<SP>1</SP>) 3  and partial hydrolysis products of the said esters and silanes; or siloxanes of the general formula R 3 SiO(SiR 2 O) m Si(OR<SP>1</SP>) 3  where m=0-20. Examples of substances which can be added to the mixture are solvents such as acetic acid ethyl ester, methyl ethyl ketone, and optionally chlorinated aliphatic and aromatic hydrocarbons, reinforcing fillers such as SiO 2 , and/or non-reinforcing fillers such as quartz powder, diatomaceous earth, calcium silicate, zirconium silicate, molecular sieves, calcium carbonate and polyvinyl chloride powder. Fibrous fillers such as asbestos, glass or organic fibres can also be used. Pigments, soluble dyestuffs, corrosion and oxidation inhibitors, scents, heat stabilizers, resins and plasticizers can also be added. Uses.-The potting of electrical and electronic components and of motors; mouldings, impressions and coatings; insulations.