baber/WOPTO huggingface dataset:
Patent GB-971745-A (GB)
Title: Cuvette assembly
IPC: G01N21/03
Filed: 1962-12-12
Abstract: 971,745. Analytical sample-receiving assemblies. BECKMAN INSTRUMENTS Inc. Dec. 12, 1962 [Dec. 26, 1961], No. 46917/62. Heading B1X. A cuvette assembly for receiving liquid samples for photometric analysis comprises a cuvette 25 communicating at the lower portion thereof with a tube 23 opening into a test tube 70 from which the sample is to be withdrawn, said tube 23 being associated with a piston 65 co-operating with said test tube to form a pump for liquid to and from the cuvette. The numerals refer to the preferred embodiment shown in Figs. 1 and 2 in which the cuvette is supported in bores 16, 17 in holder 11 and head member 12. A plug 20 supports the cuvette and receives one end of the tube 23 which is of capillary size. The cuvette 25 has a flat sided portion 26 of known volume. It is held in place by ring member 28. Holder 11 is provided with a bored hole 29 which intersects bore 16 at right angles so that the narrowed portion 26 of cuvette 25 can be disposed in the light path of a suitable optical analysing apparatus, for example a colorimeter. A mechanical plunger assembly 40 serving to clean and flush the cuvette resides in a hole 41, and comprises a sleeve 43 having a hole 44 drilled therethrough. In the upper portion of hole 44 a spring 47 serves to return piston 51 after use. A hole 54 runs the length of piston 51, through which liquid washing material may be introduced. With hole 54 covered, pumping down on the plunger serves to force the liquid through the cuvette and out via capillary 23. Capillary tube 23 extends from plug 20 into a vertical capillary hole 58 and thence into a nozzle assembly 60 which comprises a screw part 62 with a vent hole 63, a member 64 fitted to part 62 having a large end 65 fitting tightly within a test tube 70. Tube 64 is bored out to provide passage for the gas between tube 70 and vent 63 ; capillary tube 23 passes down this bore into the liquid in the test tube. Upon movement of the piston portion 65, with vent 63 closed liquid may be drawn out of, or returned to the test tube. Once the liquid is flowing between the test tube and cuvette then hole 63 may be uncovered and then the remaining liquid siphons into the cuvette.
Patent GB-1346661-A (GB)
Title: Control unit for two slide projectors
IPC: G03B23/18
Filed: 1971-10-12
Abstract: 1346661 Optical projection apparatus MODERNA BUTIKSINREDNINGAR A B 12 Oct 1971 [15 Oct 1970] 47346/71 Heading G2A A control unit for use with slide projectors having electric relays for supplying/ removing slides from the picture gate includes a circuit as shown in Fig. 3 the delay circuit acting only on changes from low to high voltage in the outputs of the bistable multivibrator. In operation when a projector relay is energized, in response to the high voltage output of its respective output I 1  or I 2 , there is no slide in the gate and vice versa. Thus on each closing of the input circuit I, the transformer pulses the multi-vibrator change the high and low voltage outputs about. Immediately the high voltage output drops, so deenergizing the relay of the non-projecting projector and thus causing the relay to return to its deenergized position in which a slide is located in the picture gate. After a predetermined period, which is sufficiently long to permit the deenergized relay to place the slide in the gate as described, the delay circuit forwards the increased voltage on the originally low voltage output of the multi-vibrator. The other projector relay is thus energized and hence its slide withdrawn from view. The output stages comprise an RC circuit connected to the base of a transistor switched on by the high voltage output to close the relay energizing circuit.
Patent GB-1096420-A (GB)
Title: An absorbent for oil floating on water, and process for its manufacture
IPC: C04B20/10
Filed: 1965-11-09
Abstract: An absorbent for oil floating on water, consists of expanded perlite the surface of the granules of which are coated with a silicone.  In manufacture, the expanded perlite, whilst still hot from the expansion treatment, is sprayed with an aqueous silicone emulsion. Alternatively, the expanded perlite is coated with an aqueous silicone solution and dried in a stream of air.
Patent GB-950266-A (GB)
Title: A new or improved bucket position indicator for a loading machine
IPC: E02F3/34
Filed: 1962-12-17
Abstract: 950,266. Shovel tilt indicators. FRANK G. HOUGH CO. Dec. 17, 1962 [March 29, 1962], No. 47490/62. Heading E1F. A tilt indicator for indicating the angle of tilt of a bucket of a shovelling machine comprises a two part telescopic member 30, 31 secured at the ends to a fixed part 28 of the shovel mounting means and to the bucket-tilting mechanism in such a manner that actuation of the mechanism causes variation in the length of the member. In the part 31 of the member 30, 31 is defined a slot that embraces the helicoidal surface 44 formed on part of a bar 43 housed in the member 30, 31 and mounted at one end in a bearing 54 rotatably secured in to extend beyond the fixed end of the part 30. A pointer 38 is secured to the projecting end of the bearing 54.
Patent GB-1129307-A (GB)
Title: Machine of the rotary piston type
IPC: F02B53/00
Filed: 1965-11-10
Abstract: 1,129,307. Rotary piston machines. R. LÍSCHER. Nov. 10, 1965 [Nov. 12, 1964], No. 47648/ 65. Heading F1F. [Also in Division B3] A rotary-piston machine, as described an I. C. engine, comprises a piston P, Fig. 2, rotatable about a fixed tabular shaft W with the interposition of a piston bush B and formed with a plurality of arms (three shown) carrying at their ends rollers 19 which co-operate with the inner profile 11 of substantially figure-of-eight configuration of a casing 12 supported by bearings 15, 16 for rectilinear movement so that as the piston rotates the casing reciprocates to provide variable volume chambers between the piston and the casing. The rollers 19 are mounted by their ends in end walls 13, 14 which close the ends of the casing 12 and rotate with the piston. The shaft W includes a diametral partition and radial ports which cooperate with radial ports in the piston bush B to permit the admission of a gaseous fuel/air mixture and the exhaust of spent gasses from the variable volume chambers. The piston is rotated from its Figs. 2 position anti-clockwise whence the upper roller 19 urges the casing leftwards from its extreme right position. At the same time the shaft ports are unmasked so that the gaseous fuel/ air mixture is admitted to the chamber V, and spent gases exhausted from the chamber following the upper roller. The chamber V, then expands with the inlet port remaining opening until just before it reaches its maximum volume. The charge is then compressed and ignited when the casing reaches its extreme left position and is finally expanded and exhausted during rightward movement of the casing. The phases of suction, compression, expansion and exhaust take place in succession in the three chambers.
Patent GB-1179749-A (GB)
Title: Conveying Apparatus
IPC: B24C3/12
Filed: 1967-10-19
Abstract: 1,179,749. Blasting. RANK XEROX Ltd. 19 Oct., 1967 [24 Oct., 1966], No. 47659/67. Heading B3D. [Also in Division B8] Cylindrical drums 10 to be blasted or peened in a cabinet 20 are supported on trunnions mounted on an endless conveyer 15 (see Division B8), same of the trunnions being rotatable by a motor-driven roll to impart spiral motion to the drums while in the treatment zone. The blast cabinet includes slidably mounted blast shields 29 and nozzle receptors 6 capable of receiving a blast nozzle 30. A vibratory bed 55 passes shot and smaller particles into funnels 61, 62 for separation and reprocessing but larger particles move down the bed 55 into a recovery receptacle 58. The processed drums are discharged on a gravity roller conveyer 16.
Patent GB-1366694-A (GB)
Title: Transportation systems
IPC: B60L13/03
Filed: 1971-10-15
Abstract: 1366694 Transport systems JAPANESE NATIONAL RAILWAYS 15 Oct 1971 [17 Oct 1970] 48135/71 Heading B7L A transportation system comprises freightcarrying vehicles 1<SP>11</SP>, 2<SP>11</SP>, 3<SP>11</SP> running along a track in a tube T, the ratio of the cross-sectional area of the vehicles at their end section to the cross-sectional area of the tube interior being such that when the speed of one vehicle, e.g. 1<SP>11</SP> differs from that of an adjacent vehicle, e.g. 211, the air column 8 between these vehicles 1<SP>11</SP> and 2<SP>11</SP> is compressed or expanded and the resultant change in pressure tends to bring the speeds of the vehicles 1<SP>11</SP> and 2<SP>11</SP> into conformity. This ratio should be high, preferably above 0À9. The vehicles may be driven by linear induction motors comprising primary windings (15), Figs. 2(b) and 2(c) (not shown), attached to the tube T and a reaction plate 14 attached to the longitudinal median of the bottom of each vehicle. At least one vehicle 2<SP>11</SP> may have a load carrying compartment bounded at each end of the vehicle by upstanding end plates 5, 5<SP>1</SP>. The vehicles may have wheels 16 to run on rails (R) at both sides of the vehicles. The individual vehicles may be replaced by units each consisting of a group of vehicles coupled together.
Patent GB-1479229-A (GB)
Title: Electrical connector
IPC: H01R13/26
Filed: 1975-11-24
Abstract: 1479229 Electrical connector MOLEX Inc 24 Nov 1975 [10 Jan 1975] 48166/75 Heading H2E An electrical connector 10 comprises an insulating housing 14 including a chamber 20 and a plurality of entrances 44 into the chamber and a plurality of terminals 16 insertable into the chamber through each one of the entrances; each terminal has a crimpable portion 50 whose cross-section is smaller than the entrances and fits in an entrance when the terminal is inserted in the housing, and a resilient contact portion 56, contractable so that it squeezes through the entrance into the chamber, whereupon it expands to its normal configuration, the entrances being so spaced that the contact portions of any two adjacent terminals resiliently press against each other when inserted into the chamber. The housing 14 is a unitary moulding with a plurality of cone-shaped protrusions 42 for locating the terminals 16, the floor 28 being fixed to the housing 14 by a hinge 30 and movable between an open position (Figs 3, 4, not shown) and a closed position (Fig. 2). The housing 14 has ears 32 which fit into openings 34 on a support plate 12 and is fixed on to plate 12 by a fastener 36 through opening 38 on section 21 and opening (40, Fig. 3, not shown) on floor 28. The cavities 44 may be provided in a matrix (Fig. 1) or in a row, whilst the terminals 16 may have other than four resilient arms 56.
Patent GB-1492604-A (GB)
Title: Method and apparatus for treating gases to remove contaminants therefrom
IPC: B01D5/00
Filed: 1974-11-07
Abstract: 1492604 Gas cleaning apparatus F CELORIO - MENDOZA 7 Nov 1974 [8 Nov 1973] 48223/74 Heading B1R An apparatus for cleaning polluted gas comprises a conduit 12 with gas inlet 10, steam inlet 14 with distribution pipes 16, 18, an elbow 20 to facilitate mixing of steam and the gas, an induction fan 30 to move the mixture through the conduit 12 towards clean gas outlet 34 and a condenser to condense out the steam and comprising successive steps of tubes 22, 22a, 22b and 22c through which cooling air is forced from ventilator 28. In operation, sufficient steam is added to saturate the polluted gas.
Patent GB-1014985-A (GB)
Title: Improvements in or relating to aircraft
IPC: B64C30/00
Filed: 1963-12-06
Abstract: 1,014,985. Aircraft. SVENSKA AEROPLAN A.B. Dec. 6, 1963 [Dec. 7, 1962], No. 48251/63. Headings B7G and B7W. [Also in Division F2] An aircraft has a main wing 1 and a canard secondary wing 5, the secondary wing having 15- 30% of the area of the main wing, both being thin, i.e. less than 10%, and having highlyswept, i.e. 55-70 degrees leading edges. The secondary wing is located above and spaced forwardly from the main wing, e.g. by distances less than one-third and one-half respectively of the root chord of the secondary wing, so that the vortex sheet shed by each secondary wing leading edge has a downward movement over the main wing and combines with the corresponding vortex sheet of the main wing. The leading edges may be straight, as in the lower part of Fig. 3, or of double-delta form, as in the upper part of Fig. 3, where the knee 3 of the main wing is directly behind the tip of the secondary wing. The main wing has control surfaces 2 and the secondary wing has blown flaps or elevators 8 fed from the compressor of a jet-propulsion engine 9.
Patent GB-1161758-A (GB)
Title: Hair Dyeing Agent
IPC: A61Q5/10
Filed: 1966-10-28
Abstract: 1,161,758. Hair dyeing compositions. THE RACHEMIE CHEMISCH THERAPEUTISCHE G.m.b.H. 28 Oct., 1966 [30 Oct., 1965; 1 Sept., 1966], No. 48443/66. Heading D1B. Hair dyeing compositions based on oxidation dyes comprise a compound of general formula I, II or III. in which R, and R 2  are hydrogen or lower C 1-5  alkyl radicals which may be linked or substituted, R 3  is hydrogen or lower alkyl or oxyalkyl group R 4  is lower alkylene, X is a -PO 3 H 2  -PO 2 H 2  or SO 3 H group optionally in the form of a water soluble salt or in the form of a corresponding amide or ester with an aliphatic alcohol having 1-4 carbon atoms, or a carboxylic acid amide or carboxylic acid ester group formed from an aliphatic alcohol having 1-4 carbon atoms, X<SP>1</SP> is a carboxylic acid amide or ester with an aliphatic alcohol of 1-4 carbon atoms or an -SO 3 H group optionally in the form of a water soluble salt or in the form of a corresponding amide or ester with an aliphatic alcohol having 1-4 carbon atoms, X<SP>11</SP> is -PO 3 H 2  or -PO 2 H 2  optionally in the form of a water soluble salt or in the form of a corresponding amide or ester with an aliphatic alcohol having 1-4 carbon atoms and a coupling component known for use in hair dyeing compositions. The coupling component may be aromatic amines or diamines, phenols, naphthols, polyphenols, aminophenols, heterocyclic methylene couplers and/or open chain methylene couplers, preferably used in equimolar proportions. Optional additives are H 2 O 2  and its addition compounds with urea, melamine and sodium borate, wetting agents, detergents and thickeners.
Patent GB-1495213-A (GB)
Title: Magnetic heading reference
IPC: G01C17/28
Filed: 1975-11-26
Abstract: 1495213 Magnetic compasses NATIONAL AERONAUTICS & SPACE ADMINISTRATION 26 Nov 1975 [11 Dec 1974] 48615/75 Heading G1N The invention relates to a fluxgate compass mounted on an aircraft and not maintained with its plane horizontal and is concerned with compensating for the "northerly turning error" introduced by the vertical component of the earth's magnetic field when the aircraft has to bank in doing a turn. In one embodiment, for a single fluxgate unit 24, Fig. 3 attached to a compass scale 23 rotatable about a normally vertical axis 25, the desired aircraft heading is set relative to a fixed marker 26 so that when the craft is proceeding in this direction the fluxgate output is zero. When the aircraft rotates about its roll axis the vertical component of the earth's field introduces an error whose magnitude is proportional to sin # cos H, where # is the roll angle and H is the heading angle for which the fluxgate compass is set. In practice this expression is simplified to 0 cos H and is determined by a vertical free-gyro-mounted first potentiometer 33, Fig. 8 whose output is proportional to # and is fed to a second potentiometer 36 driven by a cosine linkage 35 coupled to the compass scale 23, whose output is therefore proportional to # cos H. This is subtracted at 38 from the compass signal established in demodulator 17. Sin # can alternatively be derived from a fluidic system measuring the rate of yaw and converting this in known manner to a sin # value. The correction for northerly turning error may be developed as a compensating magnetic field produced by a fixed solenoid 46, Fig. 11 whose axis is parallel to the pitch axis, surrounding the fluxgate unit 45. The solenoid 46 is fed with a sin # signal and the component of the field produced along the fluxgate axis is proportional to cos H. Such compensation may also be used with a simple fixed magnetic compass. In a second embodiment the compass comprises two fluxgate units 27, 28, Fig. 10 mounted on an aircraft parallel to the roll and pitch axes respectvely. The co-ordinate signal voltages are demodulated at 30, 31 and fed to a resolver 32 whose output terminals are set by the pilot to produce a null output at the desired heading. The northerly turning error signal sin # cos H is developed at 42 and combined with the demodulated signal from fluxgate 28.
Patent GB-1068030-A (GB)
Title: Improvements in workshop machinery
IPC: F16C29/02
Filed: 1963-12-11
Abstract: 1,068,030. Fluid bearings. G. H. PORATH. Dec. 11, 1963 [Dec. 13, 1962], No. 48847/63. Heading F2A. In a precision machine slide (21), Fig. 1 (not shown), movable longitudinally along a base (20), the bearing surfaces (31, 35, 37, 43, 45, 46) of the. slide are provided with longitudinally spaced pressure pockets (56, 57, 55, 64, 65, 50) each having an associated orifice (52) to which liquid under pressure is supplied from a main passage (60), whereby a pressurized film of liquid flows continuously between the bearing surfaces of the slide and the co-operating surfaces (32, 36, 38, 44, 47, 48) of the base (20). The orifices may be in the form of capillary tubes soldered in screws. The liquid which flows between the co-operating surfaces of the slide and the base drains through channels (66, 70) and openings (67, 68, 71, 72) to a space (25) in the base (20) and is re-supplied to the pressure pockets. The slide (21) supports a pair of vertical shafts (23) on which are slidable two pairs of stanchions (81) to which is secured a vertical slide (24). Each stanchion is provided with a set of circumferentially spaced pressure pockets (Figs 5 and 6 not shown). In Figs. 7, 9, 11, 13 and 14 (not shown), slides of different configuration are depicted.
Patent GB-990570-A (GB)
Title: Improvements in or relating to high-frequency power amplifiers
Inventor: LEA CHARLES ARTHUR
IPC: H04B15/00
Filed: 1961-08-31
Abstract: 990,570. Valve supply circuits. PLESSEY CO. Ltd. Aug. 31, 1961, No. 48889/64. Divided out of 990,569. Heading H3W. The output circuit of a high frequency power amplifier valve has an inductance 8 in series with the high tension supply to the valve which is inductively coupled to an inductance 4 in the high frequency output line and is arranged as to induce in the first inductance a voltage opposing the passage of high frequency current through the high tension source. The inductances may be a bifilar winding on a common core, and form part of a pi filter. Several inductances or one, topped inductance may be switched to tune the circuit (Fig. 2, not shown).
Patent GB-1023346-A (GB)
Title: Improvements relating to illuminating apparatus
Inventor: CASTELLAIN ALFRED POURTALES
IPC: F21S8/00
Filed: 1963-12-16
Abstract: 1,023,346. Lamps. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. Dec. 15, 1964 [Dec. 16, 1963], No. 49589/63. Heading F4R. A plurality of light projectors, each comprising a substantially ellipsoidal reflector and an arc lamp disposed at the " bright centre position" with the lamp axis substantially coincident with the major axis of the ellipsoid, are arranged to project their light beams in an overlapping pattern on to a plane transverse to the beams and at a position beyond the further foci of the reflectors so that the bright central regions of the several beams fall on respective contiguous areas of the plane each of cross-section commensurate with that of the central regions of the respective beams. The " bright centre position " is defined as the position a little displaced from the nearer focus of the ellipsoid at which a lamp produces a convergent-divergent beam having a central region of relatively high intensity which falls off sharply outside the region. The arc lamps may be of the Xenon type. In a solar simulator the light beams are projected through respective windows in a wall of the testing chamber, the windows being situated in the vicinity of the further foci of the reflectors. The divergence of the centre region of each beam can be of the order of 3 degrees so that the intensity of the projected light is substantially constant over a considerable depth in the axial direction.
Patent GB-1176698-A (GB)
Title: Improvements in or relating to Fluidised Bed Equipment for the Heat Treatment of Wire and Other Products.
IPC: A23L3/04
Filed: 1967-11-01
Abstract: 1,176,698. Cooling steel wire. HUTTENWERK OBERHAUSEN AG. Nov.1, 1967 [Nov.3, 1966], No. 49607 / 67. Heading C7N. Apparatus for patenting steel wire consists of a fluidized bed through which passes a continuous conveyer on which the wire is carried in the form of overlapping turns. At the entry end of the bed the conveyer passes over a flat surface, while at the exit end it passes over a belt conveyer the upper run of which moves in the opposite direction to the first conveyer; by this means heaps of bed material are built up on the wire conveyer at both  the entry and exit ends, these defining the length of the bed. A jet tube may be provided under the belt conveyer to produce a stream of air which prevents escape of material from the bed. As illustrated, wire is formed into overlapping turns 6 on conveyer 5 passing through bed 1; at the entry to the bed the conveyer passes over plate 7, while at the discharge end it passes over the upper run of a second conveyer 8 which travels in the direction arrowed.
Patent GB-1110535-A (GB)
Title: Bonding a semiconductor device to a printed circuit
IPC: H05K3/32
Filed: 1965-11-23
Abstract: 1,110,535. Semi-conductor devices. CORNING GLASS WORKS. 23, Nov. 1965 [2 Dec., 1964], No. 49710/65. Heading H1K. [Also in Division B3] In bonding a semi-conductor device to a printed circuit the device having one or more contact areas is arranged opposite the printed circuit having a corresponding number of contact areas, a conductive pillar is disposed between the or each pair of contact areas and force and vibratory energy are applied to the unit so formed to weld the pillar or pillars to the contact areas. A glass, ceramic, glassceramic or plastic substrate 10, Fig. 1, has conductive members 12, 14, 16 formed thereon and in contact with the contact areas at the ends of the members are arranged aluminium or copper pillars 32, 34, 36 engaged in turn by the metal emitter, collector and base electrodes 24, 26, 28 vapour deposited or metallized on a planar type transistor chip 30. The assembly is arranged between the anvil 38, Fig. 2, and vibratory member 40 which apply force and vibratory energy to weld the pillars to the contact areas.
Patent GB-1129230-A (GB)
Title: Preparation of polyvinyl alcohol
IPC: C08F8/12
Filed: 1967-11-01
Abstract: 1,129,230. Polyvinyl alcohol. AIR REDUCTION CO. Inc. 1 Nov., 1967 [1 Nov., 1966], No. 49719/67. Heading C3P. Polyvinyl alcohol is prepared by saponifying poly(divinylcarbonate). By saponifying is meant alkaline or acid saponification or ester interchange. The polyvinyl alcohol may be isolated by (i) neutralizing the reaction mixture with concentrated hydrochloric acid; (ii) filtering the liquid from, suspended polymer and salts; (iii) dissolving the solid in water to give a solution; (iv) passing the solution through a mixed bed ion exchange column to remove all ions; and (v) precipitating pure polyvinyl alcohol by pouring the ion-free aqueous solution into excess acetone with agitation. The saponifying agent may be an alcohol, an alkali metal alkoxide or an acid e.g. sulphuric acid. In the examples sodium methoxide was used. In Example II poly(divinylcarbonate) is prepared as described in Specification 1,129,228.