baber/WOPTO huggingface dataset:
Patent GB-1393362-A (GB)
Title: Band pass filters
IPC: H03H11/12
Filed: 1971-08-24
Abstract: 1393362 Transistor amplifiers EMI Ltd 24 July 1972 [24 Aug 1971] 39521/71 Heading H3T In a bandpass filter comprising an amplifier 1 with frequency selective components C 1 , C 2 , R 2  connected in a negative feedback path, and a non-frequency selective positive feedback path Rb, the positive feedback path is shunted by a variable resistance Ra which is coupled to means, e.g. potential divider Rd, Rc, R-Ra, for varying the amplitude of the input signal so that the bandwidth can be varied without changing the filter gain at the midband frequency. The input potential divider is coupled to the filter input via an emitter follower stage 2 and the two variable resistors R-Ra, Ra are constituted by a single potentiometer Rv. A number of circuits may be used as a "multihump" filter.
Patent GB-1111575-A (GB)
Title: Improvements in tools with rams
IPC: H01R43/027
Filed: 1966-09-05
Abstract: 1,111,575. Releasable fastenings. AMP Inc. 5 Sept., 1966 [10 Sept., 1965], No. 39559/66. Heading E2A. [Also in Division B3] In a tool having a reciprocable ram for effecting a work operation and driven by releasable overload coupling, the coupling comprises spring loaded rollers 100 engaging in slots 99 of a yoke fastened to the ram. The stroke of the latter is varied by placing one of a plurality of bars in its path and when the ram engages a bar, the rollers 100 disengage from the slots 99 and the yoke and ram remain stationary.
Patent GB-1062755-A (GB)
Title: Automatically-shiftable roof support structure for face galleries in mines
Inventor: DOMMANN GUNTHER
IPC: E21D23/00
Filed: 1963-10-08
Abstract: 1,062,755. Advancing mine roof supports. GEWERKSCHAFT EISENHUTTE WESTFALIA. Oct. 8, 1963, No. 39600/63. Heading E1E.  In a self-advancing mine roof support system comprising a series of frames d, f connected in pairs by shifting cylinders o acting through springs p, r on the floor bar of each frame so that the frames d, f are advanced alternately, at least one of the frames d has an additional shifting cylinder s detachably pivoted in a cup t near the roof bar k, m thereof, the body of the cylinder reacting on a chosen part of a chain u, v detachably connected to the adjacent frames. The cylinder s may be supported by a chain (not shown) and is manually swung to any desired in-line or oblique position. It may thus be used for assisting the advance of a frame or correcting the position of a tilted frame. Each frame, Fig. 2 (not shown), comprises a floor bar (i), two hyldraulic props (g), (h), and a resilient member (n) connecting the prop heads (k), (m).
Patent GB-805773-A (GB)
Title: Gasoline motor fuel additive and fuel containing the same
Inventor: HUGHES EVERETT CLARK
IPC: C10L1/12
Filed: 1956-12-31
Abstract: A gasoline composition contains an additive comprising a solution of boric acid in a solvent mixture comprising an alcohol and an oil-soluble polyoxyalkylene.  The alcohol may be methyl-, ethyl-, isopropyl-, butyl-, or an amyl alcohol.  The polyoxyalkylene compound has an S.S.U. viscosity at 100 DEG  F. of from 200 to 1000, and has the general formula R-O-[(CHR1)n-O]y-R11 where R and R11 are hydrogen, or alkyl or acyl groups having 4 to 20 carbon atoms, R1 is hydrogen or an alkyl group having 1 to 5 carbon atoms, n is 1 to 4, and y is at least 5.  The solvent mixture may contain from 20 to 80 per cent by volume of the alcohol.  The gasoline may contain from 20 to 80 per cent by volume of the alcohol, the gasoline may contain from 0.1 to 5 per cent by volume of the additive and the concentration of boric acid in the gasoline may be from 0.001 to 0.05 per cent by weight.  In an example the alcohol is methanol and the polyoxyalkylene compound is a monobutyl poly - 1,2 - oxypropylene glycol having a viscosity of 285 S.S.U. at 100 DEG  F.; the composition also contains tetraethyl lead.
Patent GB-1085429-A (GB)
Title: Novel 1-[4-oxo-4-(4-fluorophenyl)-butyl]-piperidine derivatives and the production thereof
IPC: C07D211/32
Filed: 1966-09-06
Abstract: Novel 1 - [4 - oxo - 4 - (4 - fluorophenyl) - butyl]-piperidine of the general formula <FORM:1085429/C2/1> wherein R1 represents a hydrogen, fluorine, chlorine or bromine atom or a methyl, hydroxy or methoxy group; R2 represents an alkyl group having from 1 to 8 carbon atoms or a cycloalkyl or phenyl group; and R3 represents a hydrogen atom or an a - or b -methyl group; and acid addition salts thereof are prepared by condensation of a secondary piperidine derivative and a 4 - X - 1 - (4 - fluorophenyl) - butanone - 1 of the corresponding formulae <FORM:1085429/C2/2> <FORM:1085429/C2/3> wherein X represents a group which can be eliminated with the hydrogen atom attached to the nitrogen atom of the piperidine ring, followed by optional conversion to an acid addition salt of the product.  Pharmaceutical compositions comprising as active ingredient at least one compound of the first general formula above or non-toxic acid addition salt thereof in conjunction with a pharmaceutical carrier or excipient have valuable analgesic and neuroleptic activities.  The compositions may be in a form suitable for oral, rectal or parenteral administration.
Patent GB-997388-A (GB)
Title: Improvements relating to holders for electronic tubes
Inventor: CULLENDER HENRY FRANCIS
IPC: H01R33/76
Filed: 1960-11-21
Abstract: 997,388. Holders for thermionic valves. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. Oct. 27, 1961 [Nov. 21, 1960], No. 39963/60. Heading H2E. A valve-holder comprises a moulded body 1 having air-spaces 5 between socket-contact holes 2, 4, to reduce the capacitance between adjacent contacts, the spaces 5 being formed by recesses extending from the side of the body remote from the tube to a depth just less than that of the body.
Patent GB-1362610-A (GB)
Title: Metal coating compositions and process
IPC: C23C22/60
Filed: 1972-08-29
Abstract: 1362610 Preventing scale formation in equipment for modifying metallic surfaces PYRENE CHEMICAL SERVICES Ltd 29 Aug 1972 [7 Sept 1971] 40019/72 Headings C7E and C7U To prevent the formation of scale in equipment used for contacting zinc surfaces with an alkaline solution for forming coatings on the surfaces, the solution contains cyanuric acid. The solution may be as described in Specification 1042108; and may contain triethanolamine, alkali metal hydroxides, carbonates, phosphates, borates, silicates, polyphosphates, and pyrophosphates, additional metal ions, e.g. Ag, Mg, Cd, Al, Sn, Ti, Sb, Mo, Cr, Ce, W, Mn, Co, Ni and ferrous and ferric ions. Chelating agents may be added e.g. cyanides, ammonia, condensed phosphates, glycine, salicylic, phthalic, malonic, fumaric, citric, glucenic and lactic acids, acetyl acetone, sorbitol, 1, 2-ethanediol, e.d.t.a. diethalolaminomethane phosphato, and sodium lignosulphonate. The solution may also contain wetting agents. The coating may be given a subsequent chomic acid rinse or a phosphato coating particularly where part of the surface is ferrous.
Patent GB-1320378-A (GB)
Title: Method of welding metals
IPC: B23K5/12
Filed: 1970-08-20
Abstract: 1320378 Welding by fusion FRIEDRICH UHDE GmbH 20 Aug 1970 [21 Aug 1969] 40139/70 Heading B3R In the welding together of a piece of copper 1 and a piece of titanium 2, the pieces are arranged with a gap 5 between them, inert gas is passed through the gap and the copper is pre-heated while the titanium is shielded from premature heating, by the gas stream. As shown, a titanium anode 2 for electrolytic use has welded thereto a copper sleeve 1 serving for current supply to the anode. Pressure of the inert gas maintains the gap 5. Preheating of the sleeve, to 800‹ C., is achieved by a heater 7. An exterior tack weld 8 is succeeded by an interior circumferential weld made using a titanium electrode. The parts to be welded can be clamped at the desired spacing.
Patent GB-968306-A (GB)
Title: Apparatus for the collection and sampling of blood
IPC: A61J1/14
Filed: 1962-10-23
Abstract: 968,306. Transfusion apparatus. ABBOTT LABORATORIES. Oct. 23, 1962 [Nov. 8, 1961], No. 40144/62. Heading 15R. To facilitate obtaining a a sample of blood from a donor an assembly comprising a hollow needle and tubular surrounding portion is included in the transfusion tubing, so that after the blood container has been filled the parts are separated and the exposed needle is passed into the sampling tube. The needle 22 is secured in a hub portion 24 and the portion 22a adjacent the sharpened tip 39 is shrouded in a closely fitting tubular portion 25, joined to the hub 24 by a reduced, rupturable section 26. The parts 24 and 25 are made from flexible synthetic resin, such as nylon, and their extremities have circumferential barbs 30, 32 to receive the sections of transfusion tubing 14<SP>1</SP>, 14. When in use, the other end of the tube 14<SP>1</SP> receives blood from the donor through an intravenous needle and the blood passes through the needle 22 and tube 14 to a storage bag. After the bag has been filled and sealed off, the device is broken off at 26, by twisting, the portion 25 is slid off the needle 22 and the latter is thrust through the stopper of a sampling tube so that the blood passes into it.
Patent GB-1188299-A (GB)
Title: Improvements in the Production of Barbituric Acid Derivatives
Inventor: GITTOS MAURICE WARD
Filed: 1966-09-08
Abstract: 1,188,299. Barbituric acid derivatives. ASPRO-NICHOLAS Ltd. 21 Aug., 1967 [8 Sept., 1966], No. 40170/66. Addition to 1,073,299. Heading C2C. Compounds of formula wherein X is oxo or imino; R 1  is a group of Formula IIa, or alternatively, when X is oxo, a group of Formula IIb (wherein R 3  and R 4  are each H or C 1-4  alkyl); R 2  is phenyl (optionally substituted by one or more halo, hydroxy, C 1-4  alkyl or C 1-4  alkoxy groups), C 5-7  cycloalkyl, phenyl-C 1-4 -alkyl, or C 3-7  alkyl, and the salts thereof, are prepared by reacting a compound of formula R 1 Y (wherein R 1  is a group of Formula IIa and Y is Cl, Br, I, or alkyl- or aryl-sulphonyloxy), with a barbituric or 2-iminobarbituric acid monosubstituted at the 5-position by R 2 , in the presence of an aqueous solution of a quaternary ammonium compound, to give compounds of Formula I, wherein R 1  is a group of Formula IIa which, when X is oxo, may be converted to products wherein R 1  is a group of Formula IIb by reduction and, when required, N-alkylation. Other product interconversions described are: hydrolysis of a 2-imino group to oxo, salification of the free acids, salt-interconversion and salt-hydrolysis.
Patent GB-1481902-A (GB)
Title: Checking apparatus for documents
IPC: B44F1/12
Filed: 1975-10-01
Abstract: 1481902 Verifying documents GREY LAB ESTABLISHMENT 1 Oct 1975 [1 Oct 1974] 40170/75 Heading G4H In checking a document, e.g. a plastic card, and its user, the user inputs a code number through a keyboard 3 and card readers 1, 2 read information on the card peculiar to a group of cards and information peculiar to a particular card, all the input information is coded to provide address signals 4a, 5a, 6a for a permanent store 7 to select constant data and program command data for a computer 14 connected to an indicator 15. The card may include light conductors of square cross-section, magnetic or electrically conductive threads, fluorescent inserts or pores in plastic layers between layers of lower refractive index. The readers 1, 2 may include linear of areal masks and may read the card twice, the card being moved between readings. The indicator 15 may give a simple Yes/No, a multi place number or the name of the authorized user.
Patent GB-931770-A (GB)
Title: Improvements in or relating to transducer heads for magnetic recorders
Inventor: WOODING HARRY
IPC: G11B5/10
Filed: 1959-11-26
Abstract: 931,770. Magnetic recording &c. heads. BRITISH TELECOMMUNICATIONS RESEARCH Ltd. Nov. 25, 1960 [Nov. 26, 1959], No. 40242/59. Class 40 (2). [Also in Group XXII] A method of assembling a magnetic head, particularly a head constructed as in Specification 899,138, comprises mounting coils 18 on similar halves 15, 16 of a ferrite core, disposing the core halves in a depression 19 in a mounting plate 11 so that they are in contact at one end and at the other end engage opposite faces of a non-magnetic shim 22 and then passing a magnetic flux through the core to cause the two halves to clamp the shim tightly while an encapsulating resin filling the depression and encasing the core is cured to form a rigid solid. A magnet 25 and jig-mounted polepieces 27 or a disc-magnet (Fig. 3, not shown), engaging the core legs provide a clamping field, which may be supplemented by spring means as in the Specification referred to.
Patent GB-1293537-A (GB)
Title: Flier for unwinding wire, or the like from bobbins
Inventor: COOK WILLIAM GEORGE
IPC: B21C47/20
Filed: 1971-12-02
Abstract: 1293537 Fliers STANDARD TELEPHONES & CABLES Ltd 2 Dec 1971 [22 Aug 1968] 40254/68 Heading D1J A flier for the supply of wire 2 from a bobbin 1 comprises a member 5 for attachment to the bobbin, a unit 7 rotatable with respect to the member 5, supporting a pulley 16 and an arm 13 carrying a pulley 14 at its free end, both said pulleys being partially enclosed by shrouds 18 for the entry and exit of wire, and the pulley 14 being set at the specified angle with respect to the arm and its axis of rotation. In a co-ordinate system wherein the arm 13 lies in the x-z plane (Figs. 1 and 3), the axis of rotation of the pulley 14 is inclined at 12‹ to the x-y plane; (Fig. 5) and and at 18‹ to the y-z plane (Fig. 3). The shrouds 18 of the pulleys (Fig. 4) preferably have two 60‹ covered portions and openings of 140‹ and 100‹. The pulley mounting 17 may have two slots 22, 23 (Fig. 3), spaced by 144‹, and engageable by a pin 21 on the arm so that it may be fixed in either of two mirrorimage positions, suitable for right-hand or lefthand withdrawal of the wire.
Patent GB-901664-A (GB)
Title: Non-coalescing particles of rubber-like polymers
Inventor: THOMAS WILLIAM ERNEST
IPC: C08J3/12
Filed: 1959-11-30
Abstract: Particles of a synthetic rubber polymer are coated with one or more powdered hydrocarbon waxes to reduce the tendency of said particles to coalesce.  The synthetic rubber polymer may be polyisobutylene or a copolymer of isobutylene and isoprene that is butyl rubber. The hydrocarbon wax which may be a high melting point microcrystalline petroleum wax or high melting point Fischer-Tropsch wax, may have an I.P. congealing point in the range 180 DEG  to 210 DEG F. and an I.P. needle penetration in the range 1 to 14.  The particles may be coated by stirring or tumbling them in the hydrocarbon wax.  The coated particles may be incorporated in a wax blend comprising a natural wax such as Montan, Carnauba or Candelilla, a synthetic ester wax or a hardened oil such as hydrogenated castor oil.  The wax blends incorporating the said coated particles may be used as coating and laminating agents for cellulosic material such as paper.
Patent GB-1338747-A (GB)
Title: Bursting safety devices
IPC: F16K17/16
Filed: 1972-09-01
Abstract: 1338747 Bursting discs SIGRI  ELEKTROGRAPHIT GmbH 1 Sept 1972 [2 Sept 1971] 40757/72 Heading F1D A bursting disc comprises a graphite bursting body 1, Fig. 1, with a cylindrical recess 2 housing a pressure disc 3 which moves under pressure to form a seal with the body & ruptures the latter when a predeterminined pressure is exceeded. An asbestos disc 6 and a polytetrafluorethylene foil 7 are cemented to one another and to the body 1. Packing rings 8 are cemented to the foil 7. Fig.2, (not shown) illustrates an embodiment in which the body 1 has a through bore. The dotted lines a indicate the lines of venture in each embodiment.
Patent GB-1204048-A (GB)
Title: Method for purifying native collagen
Inventor: NICHOLS JOSEPH
IPC: A61L17/08
Filed: 1968-08-30
Abstract: 1,204,048. Collagen. ETHICON Inc. 30 Aug., 1968 [30 Aug., 1967], No. 41564/68. Heading C3H. A process for purifying native collagen includes the steps of treating finely divided collagen tissue with a solution of an elastase to remove the elastin without altering the collagen in the tissue, removing soluble impurities with a dilute aqueous neutral salt solution, swelling the collagen in a dilute aqueous acid solution, filtering and/or centrifuging the solution to remove particles that are larger and/or denser than the acid-swollen collagen fibrils, and deswelling the purified collagen fibrils, characterized in that the said steps are combined sequentially with the additional step of treating the collagen with a solution of a borohydride for from 3 to 18 hours at a temperature of from 7‹ to 36‹ C. The elastase may be ficin. The product may be made into tape or sutures.
Patent GB-1485038-A (GB)
Title: Straight-line guide structure suitable for example for a pen of a chart recorder
IPC: G01D5/04
Filed: 1974-09-24
Abstract: 1485038 Straight-line linkwork SIEMENS AG 24 Sept 1974 [24 Sept 1973] 41596/74 Heading F2K A straight-line guide mechanism, e.g. for a pen of a chart recorder (both not shown), comprises an arm R fast with a drive spindle (not shown) turnable about its axis O, the arm R being pivotally connected at A to a writing arm 1 + R carrying a pen (not shown) at its outer end a, the writing arm having a guide arm b which has a fixed angular relationship thereto and extends from the pivot point A to slidably engage, at its outer end M, in a curved track G whereby angular movement of the drive arm R about axis O effects substantially linear movement of the pen carrying end a, of the writing arm, between limit positions a 1  to a 2 . The guide arm b engages the curved track G via a ball-like bearing K on a pin F at the outer end of the arm b (Fig. 2).
Patent GB-1268859-A (GB)
Title: Knockdown container
IPC: B65D6/24
Filed: 1969-08-20
Abstract: 1,268,859. Knockdown containers. SANEI KAGAKU KOGYO K.K. 20 Aug., 1969 [28 Aug., 1968], No. 41636/69. Heading B8P. [Also in Division A4] In a knockdown container comprising six panels 2, co-operating panel edges engage in rebated mitre joints, Fig. 6, with the corners of the rebates being filled with interfitting projections 14 provided on each corner of the three relevant panels (Fig. 5). Each panel 2 has two opposed mitre edges 5 having a projecting ridge 6 and two opposed mitre edges 5a having a trough 8, 10. Each projection 14 comprises a triangular face 9 which lies in an extension of the plane of its associated joint surface 7, a triangular face 12 which is perpendicular to its associated ledge 10 and lies in a plane through which the extension of the mitre intersection ridge line 11 passes and a triangular face 13 which lies in the extension of the plane of the nearest mitre edge 5a. The panels 2 may comprise a moulded rigid synthetic resin shell 4, filled with foamed urethane or glass fibre 3, may be square or rectangular, may be provided with bevelled corners and edges and may include projections or recesses which function as skids or supports. The panels may be held together when assembled by various means including straps.
Patent GB-1417782-A (GB)
Title: Web finishing machines
IPC: D06C7/00
Filed: 1973-09-07
Abstract: 1417782 Polyurethane coated cotton fabrics H F ARENDT 7 Sept 1973 [27 Sept 1972] 42118/73 Heading B25 [Also in Division Dl] Surface grain-effects are produced on artificial leather webs by means of apparatus which includes an infra-red heater, steam spray devices and a rotating, perforated continuous flow drum (for details see Division B1). In an example a web comprising a cotton fabric coated with a single component polyurethane is subjected 4 days after manufacture to infra-red radiation and steam spraying before passing continuously through the rotating drum device. Treatment in the drum is carried out at an air temperature of 120C and lasts 11 minutes. A second example relates to similar treatment of cotton fabric coated with a two-component polyurethane coating 24 hours after production. Both webs exhibited grained surfaces, the latter also being air permeable due to pores produced by the treatment.
Patent GB-1321293-A (GB)
Title: Apparatus for manufacturing spirally wound pipes
IPC: B29C48/09
Filed: 1970-09-03
Abstract: 1321293 Making plastics pipes DYNAMIT NOBEL AG 3 Sept 1970 [3 Sept 1969] 42319/70 Heading F2P Apparatus for producing pipes by spirally winding a band 2 having a longitudinal tongue and a longitudinal channel so that the tongue of one lap is interengaged with the channel of an adjacent lap, comprises a rotatable mandrel 1 and at least one composite means 3 for forcing the tongue and the channel into interengagement said means comprising a plurality of component rollers which together define a configuration corresponding to the configuration of the outer surface of the joint. In the arrangement shown the component rollers 4, 5a, 5b are centralized on axle 6 by springs 10 and are mounted in a frame 7 spring loaded by spring 9. In a second embodiment (Fig. 2, not shown) the three rollers are separately mounted and separately loaded. For removing the pipe from the mandrel there are a plurality of take-off rollers (14) (Figs. 3 and 4, not shown) set at an angle to the axis of the mandrel and either driven by a common motor or separate motors and radially displaceable relative to the axis of the mandrel. The band 2 may be fed direct from an extruder to the mandrel and means to measure the sag in the band between the extruder and the mandrel may be provided which means can be used to control the speed of the take-off rollers. A servomotor mechanism may also be included which monitors the point at which the band runs on to the mandrel and adjusts the positioning of the take-off rollers accordingly.
Patent GB-1174508-A (GB)
Title: Envelope-Like Containers for Paper and Coins, and Blanks Therefor.
IPC: A45C1/08
Filed: 1967-09-18
Abstract: 1,174,508. Envelope. ARVEY CORP. 18 Sept., 1967 [3 Oct., 1966], No. 42395/67. Heading B6A. An envelope blank 11 has a central panel 12 carrying a bottom flap 17 and two side panels 13, 14, one of which carries a sealing flap 22. An envelope with one sealable and one open-topped compartment is made by folding panel 13 over panel 12, panel 14 over panels 12 and 13 and flap 17 over the three panels, so that an adhesive strip 31 fastens it to panel 14. Adhesive strips 27, 28 hold the assembled envelope together and contact engagement of adhesive patches 29, 32 seals the pocket formed between panels 13 and 14 when desired. Cutting-away of panels 12 and 13 at 26 aids access to the open-top panel formed between them. The blank 11 may be of paper or of a plastics material.
Patent GB-1463529-A (GB)
Title: Window stay assembly
IPC: E05C17/18
Filed: 1974-10-02
Abstract: 1463529 Window stays D E C WEBSTER 2 Oct 1974 [13 Nov 1973] 42791/74 Heading E2F In a window stay for connecting a window casement 13 to a window frame 14, the stay bar 10 is provided with a holding plate 18 provided with a longitudinal slot 24 through which extends a pin member 16 secured to a base member 15 fastened to the window frame 14, and catch stud 23 is provided on the window casement 13 to prevent movement of the stay bar 10 relative to the pin member 16 when the window is in its closed position. Although the catch stud 23 is angled to the vertical by 45‹ the catch stud may comprise an upstanding bar member (27, Figure 20, not shown) having a groove (28) which is adapted to engage an edge portion of the captive plate 18. In the latter embodiment and another (Figures 12-19 inc., not shown) the pin member 16 and the catch stud are both mounted on the same member which is attached to the window frame 14.