baber/WOPTO huggingface dataset:
Patent GB-910544-A (GB)
Title: Process for producing organosilicon compounds
IPC: C08K5/42
Filed: 1960-12-06
Abstract: An organosilicon compound of the formula <FORM:0910544/IV(a)/1> wherein each R is a monovalent hydrocarbon radical with or without, as substituent, a halogen atom, or a cyano, hydroxyl, alkoxy or aryloxy group, R1 is an alkyl radical or H atom and n is at least one, is polymerized by condensation in the presence of an aryl sulphonic or sulphoalkanoic acid.  Catalysts disclosed are phenyl-, o-toluene-, m-toluene-, p-toluene, and a -naphthylene-sulphonic acids, and g -sulphobutyric, g -sulphopentanoic, d -sulphohexanoic, a -sulphopalmitic and a -sulphostearic acids.  The process may be effected at 25 DEG  to 170 DEG C., the by-produced water or water and alcohol being continuously removed.  If desired the starting material and catalyst may be dissolved in an inert solvent, and the catalyst can be removed from the end-product, e.g. by washing with water. The products are oils and gums and these may be end-blocked in known manner.  Alkoxy silanes can be co-condensed with the starting materials to yield polymers containing functional radicals.  In examples a mixture of HO[(CH3)2SiO]20H and HO[(CH3)2SiO]40[CH3.CH2=CH.SiO]H, was heated at 90 DEG C. under reduced pressure with (1) p-toluene sulphonic acid monohydrate, or (2) a -sulphostearic or a -sulphopalmitic acid, to yield a gum, which was compounded with a silica filler and a peroxide curing agent and cured to an elastomer.
Patent GB-1099647-A (GB)
Title: Colloidal silicon carbide and the method of making the same
IPC: C01B31/36
Filed: 1965-10-04
Abstract: A coating composition comprises a carrier and dispersed particles of white silicon carbide having a particle diameter of 100 to 1000 mm and a light reflectance of more than 80% as compared with magnesium oxide with less than a 20% variation over the entire visible spectrum. Elemental impurities in the particles which give rise to discolouration are counterbalanced with respect to each other so as to produce silicon carbide particles of a substantially white colour; the elements of the third and eighth columns of the Periodic Table according to Mendeleev being counterbalanced by the addition of at least one element of the fifth column and the elements of the fifth column being counterbalanced by the addition of at least one element of the third or eighth columns. The carrier may comprise a plasticizer, a solvent, a drying oil e.g. linseed, tung or fish oil, a resin e.g. alkyd, epoxy or polyurethane resins, a latex or an organic polymer or mixtures thereof.  Driers, thinners, gelling agents, viscosity conditioners and tints may also be added.ALSO:White silicon carbide particles having a particle diameter of from 100 to 1000 m  and a light reflectance of more than 80% as compared with magnesium oxide with less than a 20% variation over the entire visible spectrum, are produced by reacting in a reaction vessel a source of silicon consisting of quartz, sand, silicic acid, silica gel, colloidal silica, amorphous silica, elemental silicon, silicon dioxide or mixtures thereof with an excess of carbon at a temperature of from 1350 DEG  to 1750 DEG  C. in an atmosphere of hydrogen, carbon monoxide, argon or helium or mixtures thereof; the elemental impurities in the reaction vessel, silicon source, carbon or atmosphere which give rise to discoloration of the silicon carbide particles being counter balanced with respect to each other so as to produce silicon carbide particles of substantially white colour, the elements of the third and eighth columns of the Periodic Table according to Mendeleev being counterbalanced by the addition of at least one element of the fifth column and the elements of the fifth column being counterbalanced by the addition of at least one element of the third or eighth columns. The silicon carbide particles are dispersed in a carrier system comprising at least a plasticizer, a solvent, a drying oil, a resin, a latex, an organic polymer or mixtures thereof and used as a coating composition.
Patent GB-1346066-A (GB)
Title: Thrust measurement and control
Inventor: SWEARINGEN JUDSON S
IPC: F16C17/24
Filed: 1970-12-27
Abstract: 1346066 Centrifugal pumps; turbinesbalancing end thrust JS SWEARINGEN 27 Dec 1970 [7 Jan 1970] 42280/73 Divided out of 1346065 Headings F1C and FIT [Also in Divisions G1 G3 F2] A rotary machine such as a centrifugal pump or compressor, a turbine or a turboexpander comprises a thrust bearing which measures the axial thrust on the machine shaft, the measurement being used to control the axial thrust on the shaft automatically or manually. In Fig. 1, a single stage centrifugal compressor comprises a rotor 31 mounted on a shaft 11 which is mounted in bearings 12, 13. Bearings 12, 13 each include a journal bearing 12a, 13a and a thrust bearing 14, 15. Oil is pumped to the chambers 24, 25 of the thrust bearings via restrictors 22, 23, and the differential pressure between the two chambers 24. 25 is measured at 30. This measurement is used to control the thrust on shaft 11 by adjusting a valve 43 in a conduit 42 and thus adjusting the pressure produced in chamber 40 by the leakage of air past seal 39. In alternative embodiments, Figs. 2, 3 (not shown) shaft 11 may be provided with only a single thrust bearing, the pressure or pressure gradient in which is used to control valve 43. The control of valve 43 may be effected manually, or automatically by means of a pneumatic, hydraulic or electrical servo system.
Patent GB-1518547-A (GB)
Title: Coating apparatus
IPC: B05B1/28
Filed: 1975-10-15
Abstract: 1518547 Spray-producers RANSBURG JAPAN Ltd 15 Oct 1975 [16 Oct 1974] 42354/75 Heading B2F  Powder-spraying apparatus suitable for electrostatic powder coating comprises a tubular body 6 connected via a conduit 8 to a supply of powder suspended in air, for example a fluidizing chamber, a deflector assembly 5 mounted within the body, thereby defining an annular passageway 4 through which powder is discharged and deflected outwardly, and means for modifying the shape of the powder spray pattern by discharging within said spray pattern a diverging stream of air having an angle of divergence greater than that of the powder spray pattern. In Fig. 1, the forward end of the deflector assembly has a frusto-conical recess in which is mounted a frusto-conical insert 22 and compressed air supplied through a tube 26 into an annular chamber 27 in the body and thence through tubes 28 and openings 28a into the central bore of the deflector assembly passes through passages 47, 46 into an annular passage 17 and is discharged through the passage between the insert 22 and the wall of the recess in the deflector assembly. Air also passes through an annular passage (25), Fig. 2 (not shown), into a cavity 23 in the insert 22 and is discharged through a porous closure member 24, thereby preventing the accumulation of powder on the front face of the deflector assembly. The external surface of the body 6 is connected to a high voltage source and is coated with a material of sufficient conductivity to establish a high voltage at a sharp circular edge 40 at the forward end of the body. Alternatively or additionally, the deflector assembly can form a discharge electrode. In a modification, Fig. 4 (not shown), the frusto-conical insert (19) of the deflector assembly has a plurality of tangentially arranged passages, thereby producing a whirling discharge of air, Fig. 6 shows a deflector assembly in which air passes through tangentially arranged apertures 35 into a cylindrical recess 23 in the insert 22 and is discharged as a whirling stream of air from the front end of the deflector assembly.
Patent GB-1291248-A (GB)
Title: Seal for use in pavement or building joints
Inventor: ARMOUR JOHN GEORGE DENHOLM
IPC: E04B1/68
Filed: 1969-08-26
Abstract: 1291248 Expansion joints J G D ARMOUR 13 Oct 1970 [26 Aug 1969] 42370/69 Heading E1B A sealing strip for joints in roads or pipes comprises an expanded elastomeric plastics core 1 having a textile reinforced plastics covering 7 over the top and at least a substantial portion of the sides. A groove 3 accommodates compression of the core. The upper surface including a groove 2 therein and part of the sides is further covered with a layer of elastomeric plastics. Grooves 8 receive adhesive to secure the cover 7 as to secure the strip to concrete slabs. The strip may be used as shuttering for in situ casting of concrete, when the concrete may fill lower grooves 8. In a first modification the core is formed as a sandwich of two outer less compressible layers and an inner more compressible layer, which is shorter to form the groove 3. In other modifications the reinforced plastics skin is over the lower face and the two sides and keying means are provided for securing it to shuttering.
Patent GB-931575-A (GB)
Title: Dry lubrication coatings for coated metal bearing surfaces
IPC: F16C33/12
Filed: 1961-11-28
Abstract: 931,575. Lubricating bearings. C. P. CORVINO. Nov. 28, 1961, No. 42464/61. Class 12 (1). [Also in Group XXXVI] A process for preparing a coated metal bearing surface comprises cleaning a metal surface, then gold-plating it and coating it with a suspension of a dry lubricant in a liquid heat-curable resin composition which is cured. The resin may be a phenol formaldehyde resin or a silicone resin. Prior to gold-plating the surface may be abraded and/or silver-plated, which may be after applying a silver strike. Afterwards, or alternatively, a gold strike may be applied. The dry lubricant may be disulphide, ditelluride or diselenide of molybdenum, or disulphide or ditelluride of titanium, or tungsten disulphide.
Patent GB-990520-A (GB)
Title: Improvements in or relating to laminated magnetic cores
IPC: H01F27/30
Filed: 1961-11-29
Abstract: 990,520. Transformers. LICENTIA PATENT-VERWALTUNGS-G.m.b.H. Nov. 29, 1961 [Nov. 29, 1960], No. 42691/61. Heading HIT. The laminations of a transformer core, comprising limbs joined by yokes, are compressed by press rods running down the faces of each limb and mounted at their ends in crossmembers running parallel to the yokes through which they compress a winding associated with the core. As shown, the core laminations 1 are compressed by rods 10, 11, 12 located at their ends in cross-members 14A, 14B. Rods 11 pass through the cross-members and the rods on opposite sides of each limb of the core are drawn together by turnbuckles 25, 26 to compress the laminations. Nuts 21 on the ends of rods 11 exert a force on cross-members 14A, 14B to compress the winding 15 wound on former 8 surrounding the central limb. This former can be of strong paper or may consist of metal parts which serve as a screen for the core. In modifications the turnbuckles may be omitted and the press-rods located directly in holes in the cross-members, one of the cross-members may comprise the lid of a tank inside which the transformer hangs, and each cross-member may comprise two bars each locating the press rods on one face of the core and held together by adjustable clamps. The press-rods are preferably of non-magnetic material and are insulated from the core.
Patent GB-1490334-A (GB)
Title: Hip flask
IPC: B65D1/04
Filed: 1974-12-11
Abstract: 1490334 Drinking cups H FARRINGTON 11 Dec 1974 [12 Sept 1973] 42890/73 Heading A4A [Also in Division B8] ] A cup 16 adapted to be housed in a compartment at the base of a hip flask, Fig. 1 (not shown), comprises two or more telescopically-collapsible sections 18, 19 and 20 of frusto-conical form to facilitate stowage in the compartment. The cup sections may be made of stainless steel.
Patent GB-972071-A (GB)
Title: Apparatus for optically projecting characters onto a light sensitive surface
IPC: B41B21/26
Filed: 1960-12-13
Abstract: 972,071. Photographic type composing apparatus. E. B. PLOOIJ. Dec. 13, 1960 [Dec. 14, 1959], No. 42899/60. Heading B6W. [Also in Division G2] Apparatus for optically projecting characters on to a light-sensitive surface comprises character carriers positioned to one side of the optical axis of the optical projection system and inclined reflecting surfaces individually movable into and away from the optical axis for reflecting selected characters along the optical axis to project images of the characters on to the light-sensitive surface. As shown in Figs. 1 and 2, the apparatus is similar in operation to a typewriter. Translucent carriers 3 bearing characters on their inwardly-directed faces 4 are arranged within a semi-circular tubular lamp 2 in echelon along the two arms of a right angle at the apex of which is a carrier 3<SP>1</SP> having a character bearing face 4<SP>1</SP> facing the projection lens and shutter unit 5 and the exposure gate 6 for a photographic film 8 on a typewriter-like carriage 14. A row of identical reflecting members, each comprising rightangled isosceles triangle prisms 9, 10 disposed with the planes of their hypotenuse faces at right angles and joined by a rectangular prismatic section 11 with a central aperture 12, are disposed between the carrier 3<SP>1</SP> and the projection lens 5, all the apertures 12 being aligned in the rest position. Inclined plane mirrors may be used instead of the prisms 9, 10. To select a desired character, one of the keys on the keyboard 15 is depressed to open the shutter and normally displace upwardly or downwardly the appropriate reflecting member, blocking off the character face 4<SP>1</SP>. A shift key mechanism (not shown) determines which of the three character symbols on the chosen carrier face 4 (see Fig. 2) is recorded, the exposure gate and film being moved together vertically for this purpose. Interline spacing, vertical shift for sub- and super-script characters and along the line carriage movements are also provided. In an alternative form (Fig. 3) carriers 3 are disposed terrace fashion on a carriage 18 slidable on horizontal guideways 18<SP>1</SP>, characters of the same font or style being aligned in a row down the terrace slope. A fixed tubular light source is arranged over the carriers 3 in line with the topical axis of the apparatus and the desired font is selected by moving the carriage 18 to bring the font beneath the lamp which character selection is effected by moving an appropriate prism 9. As in the previous embodiment, shift key selection by movement of film and exposure gate 6 (Fig. 4, not shown) and the other film movements mentioned are provided. Reference is made to operation of the machine by a punched tape instead of by manual keyboarding.
Patent GB-1445030-A (GB)
Title: Hydraulic locking devices
IPC: E05B51/02
Filed: 1974-09-03
Abstract: 1445030 Hydraulic latches; shovel latches MAK MASCHINENBAU GmbH 3 Oct 1974 [21 Dec 1973] 42916/74 Headings E1F and E2A  The shovel 11 of a mechanical digger is secured by a sliding latch-bolt 7 which is connected to a stepped shaft 6, 6a by which it is hydraulically controlled, latching being permitted by the fact that the operating piston 3 slides on the shaft 6 and urges the bolt to its projected position, shown, through a spring 5. The bolt is retracted by pressure in space 15 and projected by space 14.
Patent GB-1280920-A (GB)
Title: Improvements in or relating to buckles for safety belts
Inventor: NYGREN HARRY MAURITZ
IPC: A44B11/25
Filed: 1970-09-08
Abstract: 1280920 Buckles INDUSTRIFJADRAR AB 8 Sept 1970 43022/70 Headings E2A and E2B A safety-belt anchorage buckle 1 comprises a bar 2 pivoted at 5 and downwardly closeable, as shown in solid, to hold down a loop of strap in closed slot 4 and having a pivoted latch 3 at its free end having a protruding release-lever 7 which is pulled in the opening direction of the bar to effect release.
Patent GB-1345092-A (GB)
Title: Sulphimido derivatives of nitrofurans and methods for their preparation
IPC: C07D405/04
Filed: 1972-09-18
Abstract: 1345092 Sulphurino-derivatives of nitrofurans BOEHRINGER MANNHEIM GmbH 18 Sept 1972 [21 Sept 1971] 43085/72 Heading C2C Novel compounds I in which X is 0 or 5, n is 0 or 1, A is a bond on the group -N = CH- in the N atom is attached to Het and Het is a bicyclic system of s-triazole and a 5- or 6-membered aromatic ring (with the left-hand part of the formula being connected to a C atom in an α or γ position to a cyclic N atom in Het and A being connected to any other substitutable C atom of Het) or an aromatic 5- or 6-membered ring containing up to 3 hetero atoms at least one of which is nitrogen; and salts thereof are prepared (1) by condensation of a compound II with dimethyl sulphoxide preferably at a temperature below 60 C. in the presence of a dehydrating agent and a tertiary amine base, (2) nitrating a compound III or (3) reacting a compound with 5-nitro-furfural or 5-nitrothiophene-2- aldehyde or with the leacyl derivatives thereof. Het is a 1,2,4-thiadiazole, 1,3,4-thiadiazole, pyrimidine, pyridazine or 5-triazolo [4,3-b] pyridazine ring system. Compounds (I) are anti-microbial agents and form with a diluent or carrier a pharmaceutical composition which may be administered orally or topically.
Patent GB-1195250-A (GB)
Title: Improvements in Gain Control Arrangements for Transistor Amplifiers
IPC: H03G3/30
Filed: 1967-09-26
Abstract: 1,195,250. Transistor gain control circuits. RCA CORPORATION. 26 Sept., 1967 [10 Nov., 1966], No. 43667/67. Headings H3T and H4R. The invention relates to a multi-stage directcoupled transistor amplifier in which a source of voltage is used to vary the gain of a first stage and tends to vary the currents through that and a succeeding stage. According to the invention a voltage-responsive impedance, coupled to the gain controlling voltage, is connected to receive the current through the succeeding amplifier stage, being used to counteract the change of current therethrough. In one embodiment the amplifier comprises two stages 10, 12, Fig. 1, each formed of a transistor 14, 18 respectively in common emitter connection, direct-coupled to a transistor 16, 20 respectively, comprising an emitter-follower stage. An automatic gain control voltage A.G.C. is applied to the base of transistor 14 via potentiometer network 38, 40, 42; it is also applied to the base of an auxiliary transistor 46 the collector-emitter path of which is in the emitter circuit of transistor 18 and forms a variable impedance compensating for current changes in the transistor 18. In addition it provides variable negative feedback for transistor 18 providing additional control of the gain. In a second embodiment, transistors 14, 16, 18, 20, Fig. 2, form a similar direct-coupled amplifier, the gain of which is varied by applying the A.G.C. voltage to the base of an auxiliary transistor 48 forming a variable impedance in the emitter circuit of transistor 14. A temperature-compensated base bias is applied to this transistor by means of resistance network 54, 32, 34 and auxiliary transistor 52 which is strapped as a diode. As in the first embodiment, change of current through the transistor 18 is compensated by means of an auxiliary transistor 46 connected in its emitter circuit and controlled from the gain control source A.G.C.: a resistor 28 is also connected in the emitter circuit in this case. Feedback is applied by resistor 56 between the collector of transistor 18 and base of transistor 16; this may be shunted by a diode 70 which, with diode 72 from the emitter of transistor 20 to the base of transistor 18 provides limiting of the signal in both directions. The circuit may be made in integrated form.
Patent GB-1477523-A (GB)
Title: Construction of floors
IPC: E04B5/28
Filed: 1974-10-09
Abstract: 1477523 Floors JOHN MOWLEM & CO Ltd 24 Sept 1975 [9 Oct 1974] 43751/74 Heading E1W A floor is constructed employing reinforced concrete grids 5-11 whose longitudinal beams 12 extend beyond the outermost transverse beams 13 to provide a bearing. Two or three longitudinal beams 12 are provided, each of upwardly tapering cross-section, as are the transverse beams, with ledges 27 for supporting permanent shuttering slabs 26, 28 when a concrete floor is required (Fig. 3). A wooden floor (Fig. 4) can alternatively be employed, and nailing pieces 15, 37 can be employed in the upper and/or lower faces of each beam. The grids are interlaced over internal support walls, and are temporarily supported whilst concrete edge strips, e.g. 30' are cast. The beams may be slightly above the bearing walls before the edgings are cast, in which case grout will pass under the beam ends to support them (35, Fig. 5, not shown). Holes for services may be provided through the beams.
Patent GB-1281339-A (GB)
Title: Improvements in the measurements of twist in rotating shafts
Inventor: THOMPSON LIONEL RAYMOND FRANK
IPC: G01L3/10
Filed: 1968-09-13
Abstract: 1281339 Measuring torque HAWKER SIDDELEY DYNAMICS Ltd 10 Sept 1969 [13 Sept 1968] 43760/68 Headings G1A and G1N [Also in Division G4] The torque of a rotating shaft is measured by generating a signal the phase of which relative to a reference signal represents the torque. In one embodiment two contacting discs (A, B), Fig. 3 (not shown) having a basic pattern of m and m+n opaque and transparent portions are fixed to the rotating shaft at different positions. (Preferably n-1). As torque is transmitted by the shaft the phase of the signal from a receiver 13, Fig. 4, receiving light through both the discs varies with respect to the phase of the signal from a detector sensing reference markers on one of the discs, pulses being accumulated in a counter 21 between zero crossings in predetermined direction of the signals. Preferably these pulses are derived from a reference pattern on one of the discs. The count is displayed. Horse power and horse-power-hours may be measured by accumulating the pulses between zero crossings of the signal for a predetermined length of time and by using the counter as a totalizer respectively. An analogue output signal may be obtained in time ration form. By comparing the amplitude of the signal from the detector 13 with the number of reference pulses an analogue indication of the torque within a revolution of the shaft may be obtained. In a modification two magnetic patterns are written on the shaft a fixed distance apart from which frequency signals proportion to m and m+1 are derived from pick-up heads sensing the patterns. These signals are amplified and added to give a difference frequency the phase of which relative to a reference signal from a third head receiving one pulse per revolution of the shaft represents the torque. The output from one of the heads may be used for counting. In further modifications (a) the reference markers may be on a third disc, (b) a cyclic disturbance may be put on the patter of either of the discs to generate the reference signal, (c) concentric cylinders or semicircular discs may be used and (d) reflective and non-reflective patterns may be used.
Patent GB-978832-A (GB)
Title: Means for transporting and handling finely divided material
Inventor: GIST JOHN FREDERICK
IPC: B65D88/72
Filed: 1961-12-07
Abstract: 978,832. Pneumatic conveyers. G. & A. FIRKINS Ltd. Dec. 7, 1962 [Dec. 7, 1961], No. 43799/61. Heading B8A. A flexible and collapsible container 10 for handling finely divided material has a readily detachable connection 14 to a fluidizing discharge unit comprising a porous screen 15 to air chamber 16 through which a discharge outlet 18 extends. A sleeve valve 3 closes the reduced diameter outlet 12 of the container when removed from the fluidizing units. The container may be made of rubber or synthetic rubber reinforced with fabric, cords &c. Specification 958,699 is referred to.
Patent GB-1371242-A (GB)
Title: Container closures
IPC: B65D75/58
Filed: 1971-09-21
Abstract: 1371242 Seaming non-metallic sheet materials A T RANSON (A M HERZIG) 21 Sept 1971 43853/71 Headings B5K and B5D [Also in Division B8]  Neck seams 14, 16 for a container 9 may be formed by placing lay-flat tubing or laminated sheets between an upper heated die 134 and a sheet of release paper 131 placed on a lower die. The upper die 134 comprises heat sealing elements 112, 114, 116 mounted flush with adjacent dielectric areas 136, 138, 140, 141 to produce a flat surface for contacting the container (Figs. 5, 6). The dies may be mounted to the platens of a press. Polythene, polypropylene or semirigid polyvinyl chloride may be sealed.