baber/WOPTO huggingface dataset:
Patent GB-1257629-A (GB)
IPC: H03K7/08
Filed: 1968-02-20
Abstract: 1,257,629. Pulse modulation circuits. PLESSEY CO. Ltd. 20 March, 1969 [20 Feb., 1968], No. 8318/68. Heading H4L. [Also in Division G3] In a pulse width modulator, the input signal V IN  provides a voltage VE via a potentiometer R1 which is combined with a saw-tooth wave V S  and supplied to one input Y of a transistorized differential amplifier DA, the other input Z being a reference voltage V R  derived through a Zener diode ZD. The Zener diode clamps the voltage V R  to the desired value and prevents changes due to temperature variation. When the sum of V S  and V E  is greater than V R  the amplifier provides a constant amplitude output X but the duration of the output signal depends upon the difference between V S  plus V E  and V R . The input V IN  may be inversely dependent upon the terminal voltage of a generator and the duration modulated pulses X used to excite the field of the generator so that the terminal voltage is maintained constant with varying load.
Patent GB-1257802-A (GB)
IPC: B60Q1/04
Filed: 1968-02-02
Abstract: 1,257,802. Vehicle lamps. JOSEPH LUCAS (INDUSTRIES) Ltd. 23 Jan., 1969 [2 Feb., 1968], No. 5366/68. Heading F4R. Means for adjusting a vehicle lamp about a horizontal axis to compensate for changes in the attitude of the vehicle with different loads comprises bearings 23 on the vehicle body 14 into which tongues 22 of flange plate 21 of the lamp mounting 12 fit to form a horizontal hinge, and a slot 28 in a further part of the vehicle body 13 through which a screw 26 passes to fit into a captive nut 24 on a further flange plate 20 of the lamp mounting to allow the lamp to be rocked about the hinge during adjustment within the limits of the slot. Knob 27 allows the flange plate 20 to be clamped to the part of the vehicle body 13 to retain the lamp in position relative to the vehicle but released during adjustment. A stop 29 prevents the beam emitted by the lamp assembly from being lowered excessively.
Patent GB-1259489-A (GB)
IPC: F16H61/02
Filed: 1969-02-27
Abstract: 1,259,489. Change-speed gear. FICHTEL & SACHS A.G. 27 Feb., 1969 [1 March, 1968], No. 10532/69. Addition to 1,245,132. Heading F2D. Governor masses 16, which control an axially shiftable cone 20 releasing pawls 14 for automatic establishment of overdrive in a twospeed cycle-hub drive, are driven differentially by two of the three elements of the main directoverdrive sun-ring-planet train 7, to rotate at a speed-increasing ratio, thereby reducing the size of the masses 16 required to operate the shift-cone 20: The main train comprises a sprocket-driven input planet-carrier 5, with ratchet drive 11 to the hub 2 for direct-drive low speed; a permanently fixed sun and a ring gear 9, which overdrives the hub 2 through pawls 14 released for engagement at a predetermined speed by spring-opposed rightward movement of the shift-cone 20 by the centrifugal masses 16 which pivot on a driving sleeve 22. -  Four different step-up differential trains are described for driving the mass-sleeve 22, all using stepped spur planets. In Fig. 1, a step-up ratio of 5À175, relative to the main inputcarrier 5, is obtained by stepped planets 31 on a free carrier, the larger planet steps meshing a ring gear 23 fast to the input carrier 5, the smaller steps meshing a ring gear 36 fast to the main output ring-gear 9 and an output sun 37 on the mass-carrying sleeve 22.  In Figs. 2 and 6, not shown, the main ring gear drives the secondary planet-carrier and the smaller ring-gear 23 is omitted. In Figs. 3 and 7, not shown, the two planet-carriers are connected together and the larger secondary ring-gear is omitted. In Figs. 4 and 8, not shown, the secondary train has two rings and two connected output suns, a first carrier fast to the main carrier, and a second carrier fast to the main ring gear. A brake may be provided near the left bearing of the hub.
Patent GB-1264971-A (GB)
IPC: G01N35/08
Filed: 1969-02-27
Abstract: 1,264,971. Fluid flow control in automatic analysis apparatus. TECHNICON INSTRUMENTS CORP. 27 Feb., 1969 [12 March, 1968], No. 10563/69. Heading B1X. [Also in Division G3] In the automatic analysis apparatus shown, coils 40, 46 50, 54 and 60 have flow resistances much greater than that of the rest of the apparatus and are kept at a constant temperature so that the rate of flow of fluid through the apparatus is kept substantially constant regardless of any variations in the flow resistance of the rest of the apparatus for estimation of glucose in blood samples, the samples from 10 are mixed in coil 76 with gas segmentized water from flask 38 and passed through passages 80 of dialyzer 82. Gas segmentized water from flask 52 passes through passage 88 of dialyser 82 and mixes in coil 96 with ferricyanide reagent from flask 58, and the mixture passes on to colorimeter or photometer 106. Gas at a constant pressure is  introduced into the apparatus from bottle 30 via valves 32 and 34.
Patent GB-1265537-A (GB)
IPC: B64D1/16
Filed: 1969-05-06
Abstract: 1,265,537. Spray producers. AVIATION DESIGN & ENG. CO. SOUTH AFRICA (PTY.) Ltd. 6 May, 1969 [8 May, 1968], No. 23150/69. Heading B2F. [Also in Divisions F3 and F4] Liquid spray nozzles comprise an elongated body 10 of streamlined form, the body having front 18 and rear 16 ends and including first and second pieces having longitudinally spaced faces 39, 40 which define between them a circumferentially extending spray orifice 38 situated in the region midway between said front and rear ends and directed towards said front end, said faces being frusto-conical and diverging slightly towards said front end, the conical spray of liquid produced being shattered by an air stream flowing over said nozzle. The liquid may be fed by an inlet 24 forward of said orifice which may be adjusted by relatively rotating said pieces about a screw threaded connection 36. The liquid inlet may be provded with non-return valve 30.
Patent GB-1289035-A (GB)
IPC: G05B19/07
Filed: 1970-09-10
Abstract: 1289035 Program controlled loom D S O AVTOMATIZATSIA I PRIBOROSTROENE 10 Sept 1970 43440/70 Heading G3N A loom is program controlled to produce a repetitive pattern on both sides of a fabric in which colours appear in a given sequence. The shuttle boxes 7, operated by D.C. amplifiers 6 via D.C. electromagnets are positioned in accordance with the outputs of a distributer 4, each of whose outputs 4-0 to 4-9 corresponds to a colour, and the weft number of the corresponding colour is determined by a programmed coincidence between the given colour, a corresponding output of distributer 4 being fed to one of the set of coincidence circuits 8, and a corresponding weft number as measured on counters 1-3. When coincidence obtains, the content of counters 1-3 is reduced to zero, and the content of 4 increased by unity, corresponding to the next colour in the sequence. Counters 1-3 receive pulses from generator 5, as does a heald shaft programmer 10 so that the arrangement of the warp threads is controlled, heald shafts 11 being controlled by D.C. amplifiers 6 via D.C. electromagnets. The distributer 4 is connected via transistorized triggers 12 whose circuit configuration is displayed in Fig. 2 (not shown), to those amplifiers 6 connected to shuttle boxes 7, the triggers also receiving pulses from generator 5.
Patent GB-1290506-A (GB)
IPC: H01L23/373
Filed: 1969-10-23
Abstract: 1290506 Welding by pressure BROWN BOVERI & CO Ltd 23 Oct 1969 [25 Oct 1968] 52080/69 Heading B3R A heat sink 1 for electrical components comprises two parts 5, 2 frictionally welded together, the first part 5 being of a higher thermal conductivity, such as copper, than the other part 2, such as aluminium or aluminium alloy, which has an extended surface area and a larger overall dimension than the first part to dissipate heat transmitted to it from the first part. The welding may take place on a friction welding machine with a flywheel. In practice a semiconductor component is sandwiched between a pair of heat sinks.
Patent GB-1290888-A (GB)
IPC: H05B6/78
Filed: 1969-11-06
Abstract: 1290888 Microwave heating apparatus J H A SOULIER 6 Nov 1969 [5 Dec 1968]. 54478/69 Heading H5H A microwave furnace for treating dielectric materials, such as pieces of rubber 57, passed therethrough, comprises two complementary semi-cylindrical half-shells 11, 14, assembled longitudinally to each other with a rectangular section supply waveguide 13 arranged transversely thereto for transmitting microwave radiation along the tunnel furnace corridor 22. Pieces 57 for treatment are passed through the corridor 22 on a conveyer belt 8 with guide suppbrts 56 to prevent sagging. The upper halfshell 14 is pivoted on spindles 18 in supports 19 formed by the main furnace body 9 so that it may be swung aside for maintenance of the furnace, and the half-shells are secured together at the other lateral side of the body 9 by pivoted threaded rods 20 with tightening screws 21 bearing on the mating flanges 12, 15 of the halfshells 11, 14. Suitable seals 16, 17 are provided to prevent radiation leakage, seals 17 being of metal braid. Supporting jacks 37, 38, on a plate 36 carried by a supporting frame 1, provide for adjustment of the furnace relative to the fixed conveyer belt 8. A nozzle 23 on the other side of the waveguide 13 to the tunnel corridor 23, includes a movable tuning piston 24. The waveguide 13 has its own adjustable tuning reflector 29, Fig. 7 (not shown). The corridor 22 is lined by spaced conductive rings 63 at half-wavelength intervals. A tetrafluoroethylene sleeve 66 prevents escape of vapours from the corridor 22 into the waveguide 13. A radiation absorbing plug 58 helps to seal round the exit from corridor 22. Conveyer belt 8 is silicon-coated glass fabric.
Patent GB-1295200-A (GB)
IPC: B23D35/00
Filed: 1971-04-19
Abstract: 1295200 Cutting P VON ARX 19 April 1971 [26 Feb 1970] 24751/71 Heading B4B An arrangement for adjusting the cutting gap between a fixed lower cutter 2 and a movable upper cutter 6 in a sheet shearing apparatus comprises a supporting track 20 adapted to be fastened to a bearing frame (3), Fig. 2 (not shown), and a wedge-shaped part 21 slidable along the track 20 and having a face 21<SP>1</SP> perpendicular to a cutter table surface 1, and forming a guide path for the upper cutter 6, displacement of the wedge 21 altering the gap width.  An upper cutter slide 5 is held against two wedges 21 adjacent opposite ends of the cutter 6 by springs or spring-loaded rollers (not shown), the wedges 21 being adjusted relative to their tracks 20 by calibrated spindles 22, rotatable by means of a spanner (27), Fig. 1a (not shown). Rollers (8) of the slide 5 run on tracks (9) of the frame (3), and windows (26) of a casing 10 allow the spindle calibrations to be read.
Patent GB-1296082-A (GB)
IPC: A61F13/06
Filed: 1970-01-30
Abstract: 1296082 Limb supports for splints SCHOLL MFG CO Ltd 30 Jan 1970 [14 Feb 1969] 4693/70 Heading A5R A limb supporting device detachably secured to a splint 1 comprises a piece of composite fabric having a backing 6 capable in use of conforming to the profile of the limb and faced with a dense high pile of fibres 7. Attachment of the fabric to the splint is effected by nylon tapes 12. Preferably the backing is made from cotton or a material such as triacetate, which is mildew-proof and does not support bacterial growth. The pile, simulating lambs wool, consists of polyester fibres giving a smooth non-irritating surface. The invention is particularly applicable to a Thomas splint (Fig. 2) or a Simmer clavicular cross-splint (not shown).
Patent GB-1301756-A (GB)
IPC: B63C5/02
Filed: 1970-12-14
Abstract: 1301756 Suspended scaffolding A MYLAEUS 14 Dec 1970 59388/70 Heading E1S A hanging cradle scaffolding, for attachment to a wall or the side of a ship, comprises planks 7 supported on two or more frameworks each constructed from cross-brackets 5 and tubular rods 3, 4 which are pivotally jointed together, as shown, to form a multitier collapsible structure, a diagonal rod 10 of adjustable length being fitted across the upper tier of the framework to hold it in the non-collapsed state and to provide angular adjustment of the rods 3, 4 to follow the shape of the structure being worked on, and hooks 8 being provided for attachment to the structure. As shown, the cross-brackets 5 are Z- shaped with the pivotal joints 6 located in the ends of the arms thereof so that the joints are staggered to facilitate folding. The diagonal rod 10 is adjustable by a screw shackle 10' and is detachable at one end 12 from the framework to permit folding, (Fig. 1, not shown).
Patent GB-1302913-A (GB)
IPC: D06B23/02
Filed: 1970-01-21
Abstract: 1302913 Rollers IMPERIAL CHEMICAL INDUSTRIES Ltd 11 Dec 1970 [21 Jan 1970] 2926/70 Heading F2U [Also in Division D1] A resilient roller comprises a thin metal (e.g. rust resistant, high tensile or spring steel) sleeve 2 surrounding rigid core 1 and spaced therefrom by resilient seals 23, 4 (e.g. 0-rings, or V-section rings) to define a sealed space 9 filled with material (e.g. mineral oils, water, silicone oils, glycol, glycerol, waxes, or alloys of Bi, Pb, Sn or Cd) which is liquid at the temperature at which the roller is used. This roller may engage other rigid rollers to form nips through which may pass sheets of plastics-coated paper, plastics film, or non- woven fabric of nylon filaments. The rollers may be polished and one of the rigid rollers may be patterned to emboss the sheet, or have a rubber coating. Typical roller dimensions are given. The resilient roller may be heated or cooled by passing water or steam through a heating coil in the space 9.
Patent GB-1303427-A (GB)
IPC: H01J37/21
Filed: 1969-03-19
Abstract: 1303427 Welding by fusion UNITED KINGDOM ATOMIC ENERGY AUTHORITY 4 June 1970 [19 March 1969] 14547/69 Heading B3R [Also in Divisions G3 and H1] In an electron beam welding apparatus the position of the base focus is detected by means of two probes 4<SP>1</SP> and 5<SP>1</SP>, Fig. 3, preferably equally spaced on opposite sides of the desired focal plane and which are rotated about an axis 8<SP>1</SP> parallel to the beam axis (not shown) so that they intercept the beam alternately to produce pulses which are used to automatically adjust the focus current; preferably the separation of the probes along the beam path is adjustable to adjust the sensitivity of the device. In Fig. 3 the probes are mounted on a bar 6<SP>1</SP> carried by an arm 7<SP>1</SP> secured to a pinion 30 rotatable by means of a rack 31 which can be driven by means of a motor 37; when the arm 7<SP>1</SP> is thus rotated the separation of the probes in the direction of the axis 8<SP>1</SP> is varied. The tube 29 in which the arm 7<SP>1</SP> is mounted, is rotated continuously about the axis 8<SP>1</SP> by means of motor 26 so that the probes cross the beam alternately. A contact 38 bears on the tube 28 and conducts the current intercepted by the probes to external indicator means in the form of a cathode ray tube or a meter. Control means is provided to adjust the focus automatically until alternate signals are equal, alternate signals being separated by gate means and fed through respective channels to a differential amplifier controlling a motor which adjusts a beam-focusing potentiometer (Fig. 2, not shown). If the probes are not equally spaced from the focal plane, the focus is adjusted automatically to bring the signal from the two probes to a corresponding relationship. In a modification, Fig. 5 (not shown), the double probe is used to set the focus initially, and a single probe is rotated through the beam during welding, any variation in the amplitude of the signal from the single probe indicating a change of focus or other malfunction. The single probe preferably intercepts the beam in the same plane as the upper probe 4<SP>1</SP> of the double probe system.
Patent GB-1308098-A (GB)
Title: Sealing device for roll neck bearings
IPC: F16J15/447
Filed: 1971-06-30
Abstract: 1308098 Sealing rollers WALZLAGERKOMBINAT VEB 30 June 1971 30681/71 Heading F2B A sealing device for sealing between a roll 1 and a roll-neck bearing 12 comprises a labyrinth seal formed between a labyrinth ring 3 and a bearing cap 8, two axially-acting slide seal rings 5, 51 mounted in the bearing cap to abut a flat surface of the labyrinth ring, two radiallyacting seal rings 9, 9<SP>1</SP> mounted on the cap to engage a cylindrical surface of the labyrinth ring, a grease chamber 20 in the interspace between the rings 5<SP>1</SP> and 9, a baffle plate 10 on the cap providing a clearance seal action, a collecting groove 18 in the outer surface of the end cap, a portion of the labyrinth ring being formed as a slinger and the outer surface of the labyrinth ring being tapered and provided with a seal ring 2. The end face 17 of the labyrinth ring 3 may be coated with synthetic resin to provide a further seal. Pressure relieving bores (13, 11), Fig. 2 (not shown) lead from the grease chamber 20. In a modification, Fig. 3 (not shown), the baffle plate 10 is detachable.
Patent GB-1310308-A (GB)
Title: Railway vehicle body bolster and bogie bolster arrangement
IPC: B61F5/18
Filed: 1970-06-05
Abstract: 1310308 Railway vehicle suspension systems STANDARD CAR TRUCK CO 5 June 1970 27228/70 Heading B7L A railway vehicle comprises a vehicle body bolster 2 mounted pivotally on a bogie bolster 5 by means of co-operating members 3, 4, there being an elastomeric pad 13 interposed between bolsters 2, 5. The pad 13 is located within a pad pocket 7 fixed on the bogie bolster 5. Plates 10, 11 are attached to the lower and upper sides of pad 13, the upper plate 11 frictionally engaging a spacer 6 held on the underside of the vehicle bolster 2. A notch 15 is located in each side wall 14 of the pocket and a pin 16 is welded to notch 15 to overlie the lower plate 10 which extends beyond the periphery of the pad 13.
Patent GB-1310413-A (GB)
Title: Manufacture of packed castella or cake
IPC: A21D15/00
Filed: 1970-04-30
Abstract: 1310413 Cake products K HIRAKAWA 30 April 1970 20755/70 Heading A2D Manufacturing a packed cake by a process comprising baking the cake in an oven, discharging the baked cake into an adjoining sterilization chamber which is sealed to the atmosphere, dividing the baked cake into pieces, subjecting the cake pieces to a current of drying air, the latter two steps being reversible in the order in which they are carried out, and packing and sealing the dried pieces in an air-impermeable resin container, the steps of dividing, drying, packing and sealing being carried out in the sterilization chamber. The resin container, which may be manufactured of polypropylene, may be sterilized by electronic means prior to said packing and sealing.
Patent GB-1311846-A (GB)
Title: Polyamide paste
IPC: D06M17/08
Filed: 1969-04-03
Abstract: 1311846 Fusible interlinings BONDINA Ltd 23 March 1970 [3 April 1969] 17618/69 Heading B2E [Also in Division C3] An aqueous paste comprises particles of solid polyamide dispersed in a stable oil-inwater emulsion wherein the oil phase is a solution of a normally solid plasticiser in an organic solvent and the water phase contains an emulsion stabiliser. A normally solid plasticiser of M.P. below 70‹C may also be present in the aqueous phase. The particulate polyamide is preferably hydrophilic, i.e. it can absorb at least 10% water and remain in free-flowing powder form, and may be a 70/30 nylon 6/66 copolymer. The oil phase may be an 80% solution of a toluene sulphonamide/formaldehyde condensate in butyl acetate while the plasticiser in the aqueous phase may be N-ethyl-p-toluene sulphonamide. The stabiliser is preferably a water-soluble thickener e.g. a carboxymethyl or methyl cellulose solution or an acrylic copolymer emulsion such as acrylic acid/methyl acrylate in either free acid or ammonium salt form. A surfactant may also be used e.g. sodium or ammonium oleate. A blowing agent e.g. sodium bicarbonate may be added with the polyamide and a humectant e.g. 30 to 70% (by wt. of the polyamide) or sorbitol or glycerol may be included in the aqueous phase. Fusible Interlinings. The paste is useful as a printable adhesive for fusible interlinings. It may be applied, e.g. by printing using an engraved, embossed or perforated roll or screen to provide a discontinuous coating of adhesive, such as a regular pattern of dots of uniform size, to a textile base e.g. a woven, knitted or non-woven fabric. In the Example after printing the fabric was sintered at 160‹C for 20 seconds to fuse the components of the paste to a homogeneous melt. The treated fabric is laminated to an outer fabric by pressing on a steam press at 120‹C or an electric press at 150‹C.
Patent GB-1312439-A (GB)
Title: Apparatus for mixing particulate materials
IPC: B01F13/08
Filed: 1971-08-24
Abstract: 1312439 Magnetically mixing particulate materials DONETSKY NAUCHNO-ISSLEDOVATELSKY INSTTTUT CHERNOI METALLURGH and BROVARSKY ZAVOD POROSHKOVOI METALLURGHII 24 Aug 1971 39606/71 Heading B1C Continuous discharge apparatus for mixing particles including a ferromagnetic material comprises a polyhedral frusto-pyramidal rotatable drum 1 having thereabove a system 10 for generating a pulsating magnetic field, and baffle plates 11 of soft magnetic material in the longitudinal angles. As shown the drum is trihedral, the system 10 comprises a single row of electromagnets 12, and the locus of the baffles 11 is a helix so that they pass successively under an associated one of the electromagnets. There may be external ferromagnetic members 15 to concentrate the field. In operation the ferromagnetic particles are periodically pulled transversely to their path through the drum taking with them some non- ferromagnetic particles, and then collapsing with mixing effect. In another embodiment (see Figs. 3 and 4, not shown) the drum is hexahedral and there are four rows of electromagnets and the baffles each pass simultaneously under an associated electromagnet on a different one of the rows. The drum axis may be inclined.
Patent GB-1318065-A (GB)
Title: Liquid cleansing apparatus
IPC: B01D35/16
Filed: 1970-08-11
Abstract: 1318065 Filtering and settling apparatus EUROFLOW SYSTEMS Ltd 3 Aug 1971 [11 Aug 1970] 38625/70 Heading BID Apparatus for removing metal particles from machine tool coolant comprises a tank 18 having an endless chain scraper 19, which removes settled particles up surface 20, and a filter comprising a housing 10 with an inlet pipe 13, having a non-return valve 16, and a cylindrical inward-flow filter element 1, 2, 3 which is periodically cleaned by reverse flow of filtrate induced by a diaphragm 8 being moved by a pneumatic ram 9. The outlet side of the filter is connected by ducts 5, 6 to the suction side of pump 7, but the ducts resist any increased flow when diaphragm 8 descends so that most of the filtrate is forced outwards through the element. Chamber 10a is small compared with the backflush volume and axially movable sleeve 11 is raised from plate 4 by the backflushed liquid which passes into compartment 26 of the tank. Dirty coolant is delivered to compartment 25 of the tank and compartments 25 and 26 are so proportioned that the residence times of liquid therein exceed 3 and 20 minutes respectively. Baffles 21 which separates the compartments stops short of the tank floor so that scraper 19 removes settled solids from both compartments. Scraper 19 is driven by motor 24, either continuously or only during the timer controlled backflushing cycles wherein diaphragm 8 is slowly raised and quickly depressed. The non-return valve 16 comprises a rubber ball which seats in aperture 15 and is better illustrated in Fig. 4. Fig. 4 (not shown) represents an alternative filter wherein diaphragm 8 is raised to backflush the element and wherein sleeve valve 11 is replaced by the outer periphery of the diaphragm acting as a valve engaging the lower edge of the housing 10. The filter elements 1, 2, 3 comprises a perforate tube 1, supporting a metal or plastic woven screen 2 which supports a woven monofilament nylon filter medium 3.