baber/WOPTO huggingface dataset:
Patent GB-1535487-A (GB)
Title: Method of applying ingredients to open-celled polyurethane material
IPC: B29C67/20
Filed: 1977-06-16
Abstract: 1535487 Polyurethane foam FOAM CUTTING ENGS Inc 16 June 1977 [17 June 1976] 25250/77 Heading C3R [Also in Division B2] Open-celled polyurethane foam is treated by the application of a modifying ingredient, e.g. a dye, pigment, colour stabilizer (e.g. titanium dioxide) or fire retardant, by a method comprising (a) applying an excess of a liquid e.g. an aqueous solution or dispersion of the modifying ingredient to a mass of the foam, (b) removing most of the excess of the liquid by squeezing the mass, (c) passing a gas (e.g. air), the temperature of which is between 350 and 500 F. through the material for a period of time sufficient (i) to raise the temperature of the polyurethane mass to a point at which the polyurethane will absorb the modifying ingredients, and (ii) to vaporize the liquid present in the solution or dispersion, the period of time (suitably about a minute) being insufficient to cause charring of the polyurethane, so as to permanently incorporate the modifying ingredient into the foam, and (d) allowing the mass to cool. Preferably the mass is passed through a bath of the solution or dispersion for a period of time sufficient to allow permeation of the mass, and the gaseous material is circulated downwardly through the foam by suction. Suitable apparatus is illustrated.
Patent GB-857371-A (GB)
Title: Expandable rivets
IPC: F16B19/10
Filed: 1959-07-23
Abstract: 857,371. Rivets. OLYMPIC SCREW & RIVET CORPORATION. July 23,1959 [March 2, 1959], No. 25279/59. Class 89(1). An expandablerivet comprises a body having a head 10 and a shank 13, a stepped-bore 15, 16, extending from the head-end into the shank, which has slits 20 extending longitudinally from the other end, and a pin 11 having a cylindrical leading- end 26, a larger-diameter body-pcrtion 27, and a head 23. Annular-ribs 30 on the leading-end hold the pin assembled in the larger-diameter bore of the body. In use, the pin is driven-in to expand the slit-part of the shank 13 until head 23 abuts a countersink 22 in the head 10.
Patent GB-808971-A (GB)
Title: Derivatives of cephalosporin n
Inventor: ABRAHAM EDWARD PENLEY
IPC: C07D499/00
Filed: 1954-08-31
Abstract: The invention relates to derivatives of Cephalosporin-N wherein a functional derivative of an organic acid radical is condensed with the amino group of the Cephalosporin-N.  By functional derivative of an organic acid radical is meant a substance which is reactive with an amine to produce a condensation product resembling a condensation product obtainable or theoretically obtainable with the acid itself. Specified are dithio-acids, e.g. dithiophenylacetic acid, acid chlorides, acid anhydrides, e.g. acetic anhydride, sulphonyl halides, isocyanates, e.g. phenylisocyanate, isothiocyanates, and the functional derivatives of benzoic acid, e.g. benzazyl chloride, benzene sulphonic acid and p-aminobenzene sulphonic acid.  Peptide linked products may be produced by using mixed anhydrides of carboxylic acids containing protected amino groups in which the amino group is substituted by e.g. carboxymethyl radicals and acids of formula HX where X is an acid radical, e.g. sulphate.  The condensation is preferably carried out at a pH above 5 and preferably 6 to 7 and at temperatures of below 10 DEG  C. especially in aqueous solution, e.g. aqueous sodium bicarbonate.  In the Cephalosporin-N residues which form part of the condensation product, the acid groups may be present as such or may have their replaceable hydrogen atoms replaced by metallic especially alkali metals, e.g. sodium or other salt-forming substituent groups.  Examples describe the following derivatives of Cephalosporin-N (a) benzoyl, (b) carbobenzyloxy, (c) acetyl, and (d) phenylisocyanate. Specification 745,208 is referred to.
Patent GB-964021-A (GB)
Title: Improvements relating to underfloor towing-chain conveyers
Inventor: ROOKE SYDNEY WILLIAM
IPC: B61B10/04
Filed: 1961-07-12
Abstract: 964,021. Floor conveyers. SOVEX Ltd. July 11, 1962 [July 12, 1961], No. 25302/61. Heading B7L. An underfloor towing-chain conveyer of the kind in which trucks running on the floor can be engaged with an underfloor trolley of an endless constantly moving underfloor chain 2 for being towed thereby comprises a towing trolley which is provided with a pusher 13 extending for substantially the overall width of the trolley so that the pusher will engage and remain in engagement with a downwardlyprojecting pin 16 on a truck in every position which it may assume, transversely to the chain, during towing and transfer operations until control of the truck is taken over by transfer means such as a dog 26 on a transfer chain 25. Each towing trolley is mounted on pivots 3 of the endless driven chain 2 and is supported on pairs of rollers 7 which may run on the flanges of inwardly facing channel members 6. A trailing extension 11 of the body 5 of the trolley has an upturned end 12 supporting the pusher 13. The trolley also carries a cranked lever 15 pivoted at 17 and having a counterweight 19 to hold a cross-piece 21 in the position shown in Fig. 1, wherein it prevents the pin 16 from overrunning the chain 2. The cross-piece 21 is approximately the same width as the body 5 of the trolley. Fig. 4 shows a transfer point where the towing pin 16 is diverted by a diverter 22 from the slot 23 to a floor slot 24 associated With the chain 25. The dog 26 on the chain 25 is mounted on an arm 27 pivotally mounted at 28. The arm carries a roller 29 which normally keeps the dog 26 in the full line position shown in Fig. 5 by engagement with the channel in which the chain 25 runs, but at certain points the arm 27 may be allowed to move to the dotted line position in Fig. 5 by action of a spring 31 to release the pin 16. A catch 32 loaded by a spring 33 prevents overrunning of the pin 16. The chain 25 is supported by rubbing pads 40 sliding on a track 42. Specification 964,023 is referred to.
Patent GB-889299-A (GB)
Title: Photographic camera
IPC: G03B17/02
Filed: 1958-08-07
Abstract: 889,299. Depth of field indicators. AGFA A.G. Aug. 7, 1958 [Aug. 9, 1957], No. 25370/58. Class 98(1). A depth of field indicator, which is coupled to the camera diaphragm, is adjustable with respect to a distance scale, and has indicator curves extending obliquely across the said scale, the relevant portion of which is exposed between said curves, the remainder of said scale being covered over. In the form shown, the focusing ring 10 carries a distance scale 13 which reads against an index 17 on a stationary part of the lens mount. A sleeve 18 turns freely on the centre piece 10<SP>1</SP> of ring 10, the sleeve having three curved grooves 19. In these grooves engage the lugs 22 of the curve ring 21, whose curved edges 27, 28 form the actual depth of field indicator. A lug 23 on the curve ring engages in a groove 24 in a milled grip ring 25, so that the curve ring is constrained against rotation. A diaphragm transmission ring 38 can turn freely on the rear rim 10<SP>11</SP> of focusing ring 10, and is secured thereon against axial movement by a split spring ring 40. The ring 38 has a coupling fork 45 which engages with a stud for setting the diaphragm. Ring 38 is also coupled to the grooved sleeve 18 by a fork 36, 37 and a projection 47, which engage in a recess 48 in the sleeve. The actual operative member for setting the diaphragm is a ring 30. This is coupled to the transmission ring 38, so that on turning ring 30, ring 38 transmits the rotary motion to the grooved sleeve 18. Since the curve ring 21, which engages with the grooves, is constrained from turning, it moves axially, exposing more, or less, of the distance scale 13 between the curved edges 27, 28. The points of intersection of these curved edges with the rim 16 of the focusing ring 10 indicate the zone of sharp focus. The rim 16 may be formed as a red strip, the contrasting colour facilitating reading. When the focusing ring 10 is turned, the curve ring 21 participates in the same axial movement, so that no interference with the depth of field indication occurs. The diaphragm-setting ring 30 can be coupled to a shutter-speed ring (not shown) for a constant light value.
Patent GB-596384-A (GB)
Title: Clamps for scaffolding and similar purposes
IPC: E04G7/18
Filed: 1944-12-18
Abstract: 596,384. Scaffolding clamps. SMITH, W. H. Dec. 18, 1944, No. 25390. [Class 20 (ii)] A scaffold clamp for joining rods and tubes at an angle comprises a metal rod or tube 1 bent to form a U-bend 2, the legs of which are also bent to form two similar U-bends 13, 14 in a plane at right angles to that of the bend 2. One extremity of the rod or tube 1 carries a pin 8 on which is slidably and hingedly mounted a bridging piece 7 slotted at 9 to engage the other extremity 5 which is screw-threaded and carries a wing nut 10. The bridging piece 7 which may be of channel section is cut away to arcuate shape at 11. In use the bend 2 engages round one scaffold member and the bends 13 and 14 round the other, the first tube also being engaged by the arcuate portion of the bridging piece 7 which is clamped tight by the nut 10. The inside of the bends 2, 13, 14 are serrated.
Patent GB-439735-A (GB)
Title: Acid and metal reaction process and product
IPC: C01G23/00
Filed: 1934-03-13
Abstract: Metallic titanium is dissolved in an aqueous solution of telluric acid, the liquor evaporated, preferably at temperatures below 78 DEG C., to produce a sludge, the sludge dried to form a powder, and the latter heated to 800--1700 DEG  C., the resultant product being cooled out of contact with air to obtain a residue having a metallic appearance.
Patent GB-892536-A (GB)
Title: Improvements relating to lighting fittings
Inventor: PHILLIPSON STEPHEN MILNER
IPC: F21V11/02
Filed: 1958-08-08
Abstract: 892,536. Lamp screens. A.E.I. LAMP & LIGHTING CO. Ltd. July 30, 1959 [Aug. 8, 1958], No. 25554/58. Class 75(4) A lamp screen for use with a tubular lamp comprises a plurality of interconnected opaque light reflecting and diffusing members 1 lying in substantially vertical planes extending transversely to the longitudinal axis of a horizontal lamp 3, the members having portions 2 thereof cut away also for the accommodation of the lamp at least partly within the screen the members having end portions 4 bent out of the plane of the members and located on each side of a vertical plane, through the longitudinal axis of the lamp so that no path for unreflected light from the lamp exists outwardly beyond the screen from between the members, within a predetermined angle of declination from the upper plane of the screen but direct or reflected light from the lamp can fall on end portions of the members to provide some degree of illumination within the predetermined angle of declination. The members may have a double bend or a single bend on each side of the lamp. The end portions 4 may be curved and the ends may be extended, Fig. 4. The members may be interconnected by a plate 5 or end strips 6, they may be made of steel or comprise a unitary plastic moulding. The members are symmetrical about a transverse or central axis. The screen may be secured to or suspended from a ceiling or the screen may be provided with clips to fasten on to the lamp or other part.
Patent GB-1415738-A (GB)
Title: Electrical connectors
IPC: H01R13/74
Filed: 1973-05-29
Abstract: 1415738 Two part coupling ARFINA ANSTALT FUR CONTINENTALS UND UEBERSEE-FINANZINTEEESSEN 29 May 1973 [2 June 1972] 25598/73 Heading H2E To reduce alignment difficulties in coupling panel-mounted connectors, lateral play is allowed to one or both connectors in their mountings. Bulkhead 2 carrying female connector 1 for engagement from the right carries orifice 10 with shoulder 11 towards the connector body, having bore smaller than the connector nut 25. Behind the shoulder, washer 3 has bore smaller than the flanged end 4a of body 4. Adequate play is left between the diameter of body 4 and bore of shoulder 11, and between the outside of washer 3 and bore of orifice 10 behind the shoulder. Both shoulder 11 and the washer bore have radial cut-out sections 11a and 3a respectively, 180 degrees apart, in which turned-up tabs 12 on the washer 3 and 13 on flange 4a engage loosely to prevent rotation. In a second embodiment (Fig. 3, not shown) a housing, rigidly fixed to a bulkhead by an external threaded flanged sleeve having a tab engaging a radial cut-out in the bore through the bulkhead, carries an internal annular groove in which slides an external annular flange on the connector body, optionally with means for angular location. Optionally this second embodiment may additionally include the first embodiment, dividing the total play thus to inhibit jamming.
Patent GB-1541274-A (GB)
Title: Method and apparatus for joining continuous conductive filaments to predetermined terminal areas of an element
IPC: H01L21/00
Filed: 1976-06-21
Abstract: A conductor (15) which comes from a supply coil (16) and is in the form of a wire is guided tightly in a channel (14, 19, 20) which is directed to a connecting point (37) of the component (12). The conductor (15) can be moved by means of a feed device (18) in such a manner that its free end comes to rest above the connecting point (37). The conductor (15) is fixed by means of a clamping device (38, 40). The projecting free end is connected to the connecting point (37) by means of a thermal compression device (64). The conductor (15) is thereupon pushed on loosely, a section of the conductor (15) being aligned with a connecting point of an external connecting element and likewise being connected thereto. A plurality of conductors (15A, 15M) are arranged and processed in this manner in order simultaneously to connect them to a plurality of connecting points (37) of the component (12) and to associated connecting points of a plurality of external connecting elements. The method and the device are suitable, in particular, for quick and reliable wiring of integrated semiconductor components. <IMAGE>
Patent GB-611727-A (GB)
Title: Pulse communication system
IPC: H04B7/17
Filed: 1945-10-03
Abstract: 611,727. Radio signalling. MARCONI'S WIRELESS TELEGRAPH CO., Ltd. Oct. :3, 1945, No. 25767. Convention date, Feb. 17, 1944. [Class 40 (v)] In a relay station for use in a pulse communication system the received pulses engender corresponding transmitted pulses occurring after a delay such that a pulse is transmitted only during the interval between the reception of its engendering pulse and the next received pulse. The receiver is blocked during this interval, and the transmitted pulses may be modulated in phase locally. In the embodiment described, the receiving aerial RA feeds R.F. amplifier 90, followered by frequency charger 91, I.F. amplifier 92, rectifier 94, clipper 95, coupling device 100, pulse frequency selective circuit 101, converting the pulse output to a sine-wave form, limiter 110, discriminator 111, low-pass filter 112, A.F. amplifier 113 and reproducer 114. A second output from coupling device 100 feeds a further coupling device 102 from which independent pulse outputs are fed to delay devices 103, 104. The output of the latter controls a blocking pulse generator 109 which disables I.F. amplifier 92 for a desired interval between received. pulses. The delayed pulses from circuit 103 control a pulse generator 105 feeding a power amplifier 106 which modulates the R.F. generator 107, connected to the transmitting aerial TA. Provision is made for locally modulating the delay produced by circuit 103 by the output of an amplifier 108 supplied with keying or modulating energy. The circuits of devices 100, 102, 103 and 109 are shown in Fig. 2. The negative pulses from clipper 95 are reversed in section a of double triode 100 and passed in parallel to both sections of valve 102, and also to section b of valve 100 in which they are reversed again for application to the selective circuit 101. The outputs of valve 102 feed the delay devices 103, 104, which are similar, the circuit of device 103 being shown. It comprises a flip-flop multivibrator 13, the steady grid bias of section b of which is adjustable by resistance 20 to control the output pulse duration. The negative output pulses are differentiated in circuit 15, 16, the positive pulse corresponding to the trailing edge rendering valve 17 conducting, to pass on a positive pulse from its cathode 18 to the pulse gerierator 105. Local modulation of the duration of the pulses from valve 13, and hence of the phase of the pulses in valve 17 is produced by the transformer 21 connected in series with resistance 20 and fed from a microphone M through amplifier 108. The output from delay device 104 controls a flip-flop multivibrator 120 to produce positive pulses of a duration adjusted by the variable cathode resistance 122, which are fed to the control grid of valve 121. The anode of this valve is connected to the screen grids of the valves in I.F. amplifier 92 which are thus given a lowered potential during the blocking period between received pulses. Specifications 574,627 and 594,659 are referred to.
Patent GB-1316818-A (GB)
Title: Pari-mutuel off-track betting system
IPC: G06Q50/00
Filed: 1970-05-28
Abstract: 1316818 Ticket issuing betting systems R A OSWALD 28 May 1970 [3 June 1969] 25824/70 Heading G4T In an automatic paid mutual betting system, a plurality of ticket issue machines at an off-track location each accepts details of proposed bet transactions and means are provided for encoding and transmitting this data from each machine to a central computer, which on accepting the transaction, signals the same machine to issue a ticket. At the off-track location shown, ticket issue machines 11, 12, 13 forward details of each proposed transaction in terms of the type of bet, e.g. win or place, on lines 15 and the selected runner on lines 16, lines 17 being used for the second runner in forecasts and doubles. Fig. 1 shows only three lines for 15, 16, 17 for simplicity. Coders 18, 20 (logic circuit Fig. 2, not shown), then reduce the number of lines to one per runner and one per type of bet respectively. T.D.M.C. 30 combines these lines from each machine prior to transmission to the central computer by means of frequency shift key tone transmitter 31 and interface 32. A similar arrangement exists to decode the transmitted multiplexed data for assimilation by the central computer (Figs. 5, 6 and 6A not shown). If the transaction is acceptable to the central computer a signal from a pilot tone oscillator (Fig. 6, not shown), is received at the off-track location and passed to the ticket issue command logic 35 (logic circuit, Fig. 7, not shown), which forwards it to the appropriate machine 11, 12 or 13 which issues a ticket. Controlling these operations at each off-track locations is a group enable logic 25. As shown in Fig. 3, it comprises flip-flops 45, one for each ticket issue machine, which transmit a pulse like clock input signal 40 to each AND gate 44 in rotation. If a transaction is proposed at e.g. machine 11 a signal passes along line 64 to the group enable logic 25 and is ANDED at one of the gates 44 with the pulse from the corresponding flip-flop. The ANDED signal then stops the rotation of the pulse by passing through an OR gate 42 to an inverter 43, which then no longer provides a signal to AND gate 41, so preventing entry of the clock input signal 40 to the group enable logic 25. The ANDED signal is also forwarded by lines 23 to activate the coders for machine 11, T.D.M.C. 30 and the appropriate line in ticket issue command logic 35. On the issue of a ticket the signal on line 64 ceases and rotation of the pulse through the flipflops resumed until another transaction is proposed.  Logic circuitry is disclosed for the group enable logic to by-pass a faulty ticket issue machine (Fig. 8, not shown).
Patent GB-355041-A (GB)
Title: Improvements in and relating to tungsten carbide
IPC: C22C29/06
Filed: 1930-08-29
Abstract: A composition suitable for making cutting tools consists of tungsten carbide cemented with manganese, for example about 91 per cent of tungsten carbide and 9 per cent of manganese.  The powdered materials may be pressed and sintered as described in Specification 213,524, [Class 1 (ii), Inorganic compounds, other than &c.], or the mixture may be heated under pressure at about 1300 DEG  C.  Specification 335,453, [Class 82 (i), Metals, Extracting &c.], also referred to.ALSO:A composition suitable for making cutting tools and tool bits consists of tungsten carbide cemented with manganese, for example about 91 per cent of tungsten carbide and 9 per cent of manganese. The powdered materials may be pressed and sintered as described in Specification 213,524, [Class 82 (i), Metals, Extracting &c.], or the mixture may be heated under pressure at about 1300 DEG  C.  The product may be used as a tool bit and may be brazed, welded, or otherwise secured to a tool shank.  Specification 335,453, [Class 82 (i), Metals, Extracting &c.], also is referred to.
Patent GB-1430990-A (GB)
Title: Knee joints for leg irons
IPC: A61F5/01
Filed: 1973-05-31
Abstract: 1430990 Leg iron J E HANGER & CO LTD 24 May 1974 [31 May 1973] 25977/73 Heading A5R A knee joint for a leg iron comprises a forward pivot 2 and a rearward pivot 3 formed at the head of a shin iron 1 and a forward and a rearward pivot 5, 6, respectively formed at the base of a thigh iron 4, a swing- ing link 7 between the rearward pivots, and a longer swinging link 8 between the forward pivots, the shin iron providing a fixed abutment and the longer link being formed with a rearwardly extending spur 9 which contacts the said abutment at full extension and full flexion of the joint. The joint is capable of flexion through 134¢ .