baber/WOPTO huggingface dataset:
Patent GB-1267150-A (GB)
IPC: F25C1/24
Filed: 1970-12-17
Abstract: 1,267,150. Ice freezer trays. GENERAL MOTORS CORP. 17 Dec., 1970 [9 Jan., 1970], No. 59959/70. Heading F4H. An ice freezer tray includes an outwardly extending continuous flange 50 extending along the outer edges of the side and end walls of the tray, the flange having an inwardly opening continuous U-shaped recess formed by a flat bottom wall 52, a flat top wall 54 and a flat side wall 56. The top of the flange 50 may be provided with a stiffening bead 58. The flange may also have a continuous downwardly extending rib 62.
Patent GB-1289256-A (GB)
IPC: B65G1/00
Filed: 1971-05-28
Abstract: 1289256 Endless chain conveyers RUDKETTENFABRIK RIEGER & DIETZ 28 May 1971 [19 June 1970] 17907/71 Heading B8A Load carriers 25 are maintained horizontal at the transition from upper to lower runs of the conveyer (and vice versa), by the provision of an inner pair of endless supporting chains 11, 12, to which the leading end of each carrier is pivotally mounted, and an outer pair of endless chains 13, 14, staggered with respect to the chains 11, 12, in the direction of conveyance, which support the trailing end of each carrier 25. The trailing supports are provided by pins 29, 30, for respective sides of each carrier. These are retractable inwardly from engagement with the chains 13, 14, at positions where the inner and outer chains cross each other (when the conveyer is viewed in side elevation), so that they do not foul the inner chains. This is brought about by the action of cam slots 38, 39 (Fig. 2), which engage followers 35 on the pins 29. The trailing ends of the carriers 25 are supported during this action by the engagement of a roller 46 (mounted on the carrier) with teeth of a sprocket 44 (Fig. 7). Also, rollers 40 mounted on each side of the carrier 25, engage respective tracks 42. In a modification (Figs. 7 and 8, not shown), the rollers 40 engage respective sprockets (47), (48), each of which corresponds to the sprocket 44 of Fig. 7.
Patent GB-1289668-A (GB)
IPC: A41G5/00
Filed: 1971-08-16
Abstract: 1289668 Fibre distributors H TSUKISARA 16 Aug 1971 [22 April 1971] 38389/71 Addition to 1263794 Heading B2F In a device for sprinkling hair on the scalp as in the parent Specification, the outlet apertures in one or more grids 15, 16 and 17, are tapered in the downward direction. The grids are held in position in the hollow body by resilient beads 6. Closure caps may be provided at both ends of the device.
Patent GB-1290898-A (GB)
IPC: C22C19/07
Filed: 1969-12-19
Abstract: 1290898 Heat-treating alloys CASTOLIN S A 19 Dec 1969 [20 Dec 1968] 62068/69 Heading C7A An alloy consisting of, in percentage by weight W 2 - 60  C 0À3 - 4 Fe 0À5 - 60 other carbide 0 - 10 forming elements Co balance, there necessarily being some Co present, and having a microstructure containing M 6 C carbides, is heat-treated at 800‹-1300‹C. for 2 to 1000 hours to form tungsten monocarbide. With the alloy in powder form treatment may be carried out either before or simultaneously with the sintering process; other metal powders, particularly iron and steel, may be incorporated with the alloy, possibly up to 60% by weight of the latter. As exemplified the alloy is used in production of cutting tools.
Patent GB-1296859-A (GB)
IPC: C25B9/19
Filed: 1969-12-16
Abstract: 1296859 Generation and electro-dialysis of hydrogen ions and hydroxyl ions ASAHI KASEI KOGYO K K 16 Dec 1969 [16 Dec 1968] 61211/69 Heading C7B H<SP>+</SP> and OH<SP>-</SP> ions are simultaneously generated and electro-dialyzed from water containing a dispersion of finely pulverized water-insoluble "polyelectrolyte" (defined as polymeric material bearing a plurality of positively charged fixed ions and which does not pass through an ionexchange membrane). The method is performed using a cell having an anode and a cathode with a reaction compartment therebetween. The reaction compartment is bounded on the anode side by an anion exchange membrane and on the cathode side by a cation exchange membrane. The dispersion is introduced into the reaction compartment and D. C. passed through the cell. The "polyelectrolyte" may be an anion exchange resin in particulate form. By the method the following can be produced (i) NaOH and HCl from NaCl, (ii) NaOH and CH 3  COOH from CH 3  COONa and (iii) NH 4 OH and HCl from NH 4  Cl. Fig. 1 illustrates apparatus comprising alternate anion exchange membranes 3 and cation exchange membranes 4 forming reaction (or water-decomposition) compartments 5, acid compartments 6, alkali compartments 7 and salt compartments 8. In operation, acid and alkali are formed in the compartments 6 and 7 from the salt and water. The anode may be of graphite, Pt, Ti, Ta or Zr or a material plated with Pt. The cathode may be of graphite, Fe, Ni or stainless steel. The above apparatus may be used for preparing a strong acid and a strong base but where the salt of a weak acid or weak base is to be decomposed the apparatus can be simplified. In decomposing CH 3  COONa, those anion exchange membranes can be omitted whereby the salt and acid compartments become combined. In decomposing a salt of a weak base, those cation exchange membranes can be omitted whereby the salt and alkali compartments become combined. Specified cation and anion exchange membranes are prepared from polymeric styrene-divinyl benzene as a matrix into which sulphonic acid and quaternary ammonium groups respectively have been introduced.
Patent GB-1301285-A (GB)
IPC: H05K13/02
Filed: 1969-11-25
Abstract: 1301285 Pneumatic conveyers; feeding silicon wafers INDUSTRIAL MODULAR SYSTEMS CORP 25 Nov 1969 [26 Nov 1968] 57672/69 Headings B8A and B8S [Also in Division B2] Silicon wafers w to be treated at a coating station (see Division B2) are conveyed one by one from a supply magazine 1 to a centering unit by means of a pneumatic flotation conveyer 2. The conveyer comprises a plate 56 formed with slots 58, which communicate through openings 62 with a plenum chamber 61 and in which are located T-section nozzle bars 68, Fig. 6, forming ducts 71 connected to the plenum chamber. The side faces of the nozzle bars 68 are formed with arcuate, converging grooves 73, Fig. 1, to impart horizontal movement to the wafers supported by the air passing therethrough. The grooves 73 may be so formed that the air jets passing therethrough are also inclined inwardly. In a modification, Figs. 17-19 (not shown), the duct 71 at one side of a nozzle bar is connected to one plenum chamber and the grooves 73 are inclined in one longitudinal direction whereas the duct at the other side of the bat is connected to a second plenum chamber and the grooves 73 at the other side are inclined in the opposite direction, whereby the wafers may be conveyed in either direction depending upon which plenum chamber is connected to the air supply. The wafers pass from the conveyer on to the centering unit which consists of a plate 76, Fig. 4, formed with a concave upper surface 75 and with apertures 83 communicating with a plenum chamber connected to a pulsating source of compressed air. When the wafer w reaches a position where its centre is located over the centre 77 of the plate 76, a tube 96, connected to a suction source, is raised through an aperture in the centre of the plate 76, thereby raising the centred wafer which is then transferred by a suction transfer arm Figs. 9-16 (not shown), to the coating station. The supply magazine 1 comprises a substantially U-shaped housing 11 formed with a series of vertically-spaced lips 13 for supporting individual wafers w. The magazine is releasably locked to a support which is stepped downwardly by an electrically-driven screw and nut mechanism, Fig. 3 (not shown), to place the wafers on the conveyer 2. The wafers are fed by a further flotation conveyer from the coating station to a further magazine which is stepped upwardly as each wafer is received.
Patent GB-1302240-A (GB)
IPC: H01H19/58
Filed: 1970-10-22
Abstract: 1302240 Rotary switches G R L TOUTAIN 22 Oct 1970 50093/70 Heading H1N [Also in Division F2] A commutation device comprises first and second stator members, 1 and 2, axially biased towards one another, their opposing faces having similar circular arrays of recesses, 11 and 14 and a rotor 5 mounted therebetween with a plurality of holes, 15, sequentially in alignment with the stator recesses as the rotor is rotated, and locating balls 6 are arranged in holes 15 whereby movement of the rotor sequentially forces the stators apart; electrical contact areas (Figs. 3a and 3b, not shown) are provided on the opposed stator faces and conductive means on the rotor 5 interconnect them whenever the stators are in their closest axial position with the locating balls engaged in the opposed stator recesses. As shown, the recesses comprise holes 11 and 14 and the rotor is turnable by a pin 7 passing through aperture 13 and having a tongue 7a engaged in a slot 16 in rotor 5. The stator 1 forms a base having posts 12 on which stator 2 is mounted by means of resilient links 3. Two balls 6 are accommodated in each of three holes 15 and their combined diameters exceeds the normal spacing between the stators such that movement of rotor 5 lifts stator 2 (Fig. 2b, not shown) as the balls 6 pass between locations in aligned holes 11 and 14 (Fig. 2a, not shown). The contact areas on the stators are preferably printed circuitry, and connections to stator 2 may be by means of the links 3. The conductive means on the rotor 5 comprises further balls (not shwon) in additional holes 8, and the rotor is of insulating material having a low coefficient of friction.
Patent GB-1303570-A (GB)
IPC: F16L59/10
Filed: 1971-08-04
Abstract: 1303570 Coverings for pipes and joints KITSONS INSULATION PRODUCTS Ltd 4 Aug 1971 36715/71 Heading F2G A wrapper 12 for protecting insulation around a pipe-T joint comprises a single piece of planar sheet metal or plastics material having a middle portion 13 to be wrapped around a main pipe, end portions 15 to be wrapped around a branch pipe adjacent the junction of the branch and main pipes and portions 14 intermediate the end and middle portions which are shaped such that the wrapper effects a transition from a rectangular section A 1 , A 1 , A 2 , A 2  to a circular section defined by the ends 15 when wrapped around a pipe-T. The width W of the middle portion 13 is not less than the diameter d 3  of the branch pipe to be wrapped and the corners A 1 , A 2  of the rectangular section lie at the intersections of tangents from the wrapper ends 15 to the circumference of the main pipe. The end portions 15 of the wrapper overlap around the branch pipe to bring fixing holes 16 into alignment to receive a self-tapping screw or stud. In another embodiment, the insulated main and branch pipes (1, 4) (Figs. 1, 2, 3, not shown) are of equal diameter d 1 , the middle portion (8) of the wrapper is of width d 1  and length ¢ #d, whereas the end portions are of width slightly greater than ¢ #d. To accommodate pipe-T joints having other branch-pipe diameters, the wrapper ends 15 are truncated at a position along the extension lines of Fig. 5 to achieve the desired diameter.
Patent GB-1303889-A (GB)
IPC: H01J31/50
Filed: 1970-08-13
Abstract: 1303889 Image intensifier tubes MULLARD Ltd 13 Aug 1970 39070/70 Addition to 1090406 Heading H1D A channel intensifier device as in the parent Specification 1,090,406 is in combination with photoemissive surface areas P which are substantially entirely formed on the input electrode E1 of the device and are made of a crystalline material comprising a strongly conducting P-type A3-B5 semi-conductor compound or mixed crystals of such compounds. If the photo-emitter conducts sufficiently it may act as the input electrode. A3-B5 semi-conductor compounds consist of compounds of substantially equal atomic amounts of at least one element of Al, Ga, In and at least one element of P, Ar and Sb. Gallium arsenide, gallium phosphide and mixed crystals of gallium arsenide with gallium antimonide and gallium arsenide with indium arsenide are instanced. An electronic imaging tube or image intensifier including the above device is instanced as including a luminescent target. Reference is made to the use of GaAs photo-emitter in the transmission mode, the above device however permitting reflection mode operation in which the photoelectrons are emitted from the irradiated face of the photoemissive layer backward or sideways and swept into channel entrances by the accelerating field. Optically reflecting input electrodes enhance operation, particularly for thin photoemissive layers. The photoemissive surface areas may be manufactured by the method of Specification 1,200,899. Reference is also made to Specifications 1,064,072 to 1,064,076; 1,090,406 and 1,154,515.
Patent GB-1312895-A (GB)
Title: Combined high tension pulse voltage and oscillating voltagegenerator
IPC: H03K3/53
Filed: 1971-05-11
Abstract: 1312895 High voltage pulse generators; generating oscillators TRANSFORMATORENUND RONTGENWERK DRESDEN VEB 11  May 1971 14220/71 Headings H3B and H3P In a high voltage generator of the type in which a number of capacitors 1 are charged in parallel (by means not shown in the Figure) and discharged in series through spark gaps 2, and comprising damping resistors 4 and discharge resistors 3, inductors 5 are connected permanently at one end to the capacitors and optionally (at 7) at the other so that oscillatory or unidirectional discharge may be selected, the damping resistance being arranged to be shortcircuited during oscillatory discharge and the discharge resistors removed. Each inductor may be replaced by a plurality of inductors of different value to enable selection of the frequency of the oscillatory discharge. The components may be arranged in line on pillars (Fig. 3, not shown).
Patent GB-1313502-A (GB)
Title: Bidets
IPC: A47K3/28
Filed: 1969-01-23
Abstract: 1313502 Portable bidets CZESLAW SZYMCZAK 20 April 1970 [23 Jan 1969] 3783/69 Heading A4N A portable bidet has a bowl 11 with a peripheral flange 12 for seating on a w. c. pan, a water spray nozzle 36 in the bowl, a water reservoir 18 and pumping means to pump water from the reservoir to the nozzle. The pumping means may be a deformable bulb (38) Fig. 1 (not shown) which pressurizes the reservoir. The outlet 20 of the bowl and the inlet 30 of the reservoir are each provided with a closure member 21 and 31 respectively. The closures are biased open by a spring 25 and are held closed by an abutment 29a engaging a washer 24 mounted beneath the aperture. A hand grip 19, handle 16 and soap container 14 are moulded into the flange 12 and construction is of plastics, e.g. resin impregnated glass fibre.
Patent GB-1323999-A (GB)
Title: Loading attachments for vehicles having hydraulic systems
IPC: A01D87/00
Filed: 1971-07-13
Abstract: 1323999 Tractor attachments for lifting M DUNN 2 Oct 1972 [13 July 1971] 32764/71 Heading B8H A loading attachment for a tractor comprises a yoke 1 for connection to the tractor, a fixed upper clamping member 8 and a lower clamping member 6 which is movable up and down on hinges 7 by a ram 2, 3 which is connected to the tractor hydraulic supply line. The member 6 may comprise tines or a tray.
Patent GB-1340971-A (GB)
Title: Oscillators
IPC: H03B27/00
Filed: 1972-01-04
Abstract: 1340971 Oscillators; phase modulation MARCONI CO Ltd 1 Dec 1972 [4 Jan 1972] 215/72 Headings H3F and H3R In an oscillator comprising two integrators 1, 2 connected in series, the feedback path 3 being completed over an inverter 4, two multipliers 17, 18 are inserted in the feedback loop. According as the second input, from terminal 19, to the multipliers is positive or negative the output from integrator 1, at terminal 14, precedes or appears after, the 90 degree phase-shifted output from integrator 2 at terminal 13. The Specification also refers to a known arrangement in which the multipliers are replaced by potentiometers (Fig. 1, not shown), the frequency of oscillation depending upon the setting of the potentiometers.
Patent GB-1342252-A (GB)
Title: Method of maintaining a floating vessel in a desired position or on a desired course
IPC: G05D1/02
Filed: 1970-12-21
Abstract: 1342252 Automatic control systems SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ NV 21 Dec 1970 60590/70 Heading G3R To obviate the tendency of a control system to oscillate due to the higher frequency portion of wave action on a floating vessel which the control is operating to maintain on a desired course or desired position, filters are employed to filter out high frequency components of a deviation signal. Correction is effected in respect of deviation due to wind, water flow and low frequency wave action on the vessel only, since the higher frequency portion of the wave action is said to cause displacement of the vessel in one direction followed by a displacement in the opposite direction due to elliptical movement of water particles. Compensation thus occurs within a short period without employing the control system and risking consequent oscillation thereof. As shown Fig. 1, a vessel 1, e.g. for cable laying or drilling wells in the sea bottom, has propulsion units 6; 7 rotatably mounted around axis 8, 9 and each having variable thrust magnitude. Units 10, 11, 12 Fig.6 respectively measure the deviation of the vessel 1 from a desired position 1' Fig. 2, along a X axis, Y axis and in a rotational sense with respect to the X axis. The X axis or co-ordinate may be the vessel heading. Deviation signals X, Y, # produced by these units respectively are passed through filters 13, 14, 15 wherein the high frequency wave components are attenuated leaving signals Sx, Sy and S#. The thrust to be exerted by propulsion units 6, 7 respectively to return the vessel 1 to the desired location is found by vectorally adding, in a computer unit 16, the signals Sx, Sy and vectorally adding thereto the signal S #  in the case of propulsion unit 6 (as illustrated Fig.4) and vectorally subtracting S #  in the case of unit 7 (as illustrated Fig. 5). The resultant thrust vectors V A  and V B  obtained are representative of magnitude and direction of thrust to be applied by units 6, 7 respectively, and corresponding signals are applied to controllers 17, 18 of the propulsion units. The deviation may be measured by any known means, e.g. by measuring the inclination, with respect to two planes, of a taut line stretched between the vessel and a point on the sea bed; or it may be measured along one axis only when controlling the course of the vessel. Control may be effected to locate the vessel at a plurality of locations successively. The deviation signals may be in digital form and the controllers 17, 18 may have proportional and optionally derivative and/or, integrating actions. The deviation signal may be sampled and a limited number of samples stored with relation to the sampling time by discarding the oldest sample each time a new sample is added. Reference has been directed by the Comptroller to Specification 994, 996
Patent GB-1344170-A (GB)
Title: Ventilation systems
IPC: F24F13/06
Filed: 1971-03-02
Abstract: 1344170 Ventilators CARL MUNTERS AB 2 March 1971 5818/71 Heading F4V In a ventilation system having a conduit 16 for supplying air to a ceiling opening, an air flow throttling member 18 mounted in the conduit outlet comprises strips combined to form straight air passages each having a diamete of less than 3 mm. The strips are made of asbestos, which may be reinforced, or metal. The member 18 as shown is formed by a plane strip and a corrugated strip placed face to face and wound spirally, or by strips forming a honeycomb pattern. One or more members 18 are removably mounted in the conduit 16 with rubber sealing rings 20. Alternatively, the member 18 is replaceable by another of greater or lesser depth. An air filter 38 is provided in a main air channel 14. In another embodiment, the air is also delivered to the room through substantially horizontal or downwardly inclined passages of an annular throttling member (28, Fig. 3) superposed on a throttling member 18.
Patent GB-1346851-A (GB)
Title: Varistors
IPC: H01C17/065
Filed: 1971-05-21
Abstract: 1346851 Glass-metal and metal oxide mixtures MATSUSHITA ELECTRIC INDUSTRIAL CO Ltd 21 May 1971 16375/71 Heading C1M [Also in Division H1] A varistor is manufactured by applying to a support 1, e.g. of alumina, a mixture 2 of finely divided ZnO and glass frit and firing the mixture to drive off any liquid vehicle present and to melt the glass frit so as to form a solid layer of ZnO in a glass binder. Electrodes 3a, 3b are provided, either both on top of the layer 2 as shown or with one electrode deposited directly on to the support 1 before application of the ZnO/glass frit mixture. Ag, Pt, Ti, Ni, Au, Al, Cu or Zn are mentioned as suitable electrode materials, but the preferred electrodes are applied as silver paint in a glass frit, the preferred glass being specified. Suitable glasses for the frit mixed with ZnO for the layer 2 are borosilicate, lead borosilicate, bismuth borosilicate or zinc lead borate, preferred compositions being specified. The ZnO, which is present as 30-95% by weight of the mixture, may include as an additive from 0À1 to 8 mol. per cent of Bi 2 O 3 , PbO or BaO.
Patent GB-1348481-A (GB)
Title: Stop motion devices for textile apparatus
IPC: B65H63/028
Filed: 1971-04-19
Abstract: 1348481 Stop motion TMM (RESEARCH) Ltd 19 April 1971 [13 Feb 1970] 7095/70 Heading DID In the event of breakage of a yarn 15 an arm 18 turns about a pivot 20 and is arrested by wedging contact between a portion 26 and a bus-bar 25, thereby energizing an electric stop circuit. Yarn may then be rethreaded through closed or open-topped eyes 16, 19 after which the arm 18 is reset, an edge 22, 29 guiding the yarn into the eye 17 of the arm. A hook 24 may be engaged with a plate 14 to hold the arm 18 up without the aid of a yarn.
Patent GB-1349058-A (GB)
Title: Non-woven webs
IPC: D04H1/587
Filed: 1971-04-28
Abstract: 1349058 Bonded fibre fabric IMPERIAL CHEMICAL INDUSTRIES Ltd 28 April 1971 [19 May 1970] 24211/70 Heading D1R [Also in Division C3] A mixture of at least one organic monomer containing an ethylenically unsaturated group and an organic compound containing at least two ethylenically unsaturated groups is applied to a fibrous web by spraying or impregnation then photopolymerised at discrete locations over the web to bond the web. The web may be formed by carding or laying in a random or regular manner staple or continuous filaments of polyester, polyolefin polyacrylic, nylon or natural material, or a mixture thereof. It may then be needled. Suitable monoethylenically unsaturated monomers are acrylamide, acrylonitrile, styrene, alkyl acylates, alkyl methacrylate, vinyl acetate, vinyl byrrolidone, acrylic acid, methacrylic acid, 2 hydroxyethyl methacrylate, 2 hydroxyethyl acrylate, N-methylol acrylamide and vinyl pyridine. Suitable polyunsaturated compounds are divinylbenzene, N, N'-methylenebis-acrylamide, ethylene glycol dimethacrylate, ethylene diacrylate and unsaturated polymers such as poly (ethylene fumarate). A list of organic and inorganic photoinitiators is given, including the dyes methylene blue and riboflavin chloroform or water/ethylene glycol are used as solvent. Excess solution is squeezed off. The u.v. or visible light may be shone through a perforated screen onto a stationary or moving web, or the web scanned by moving light source, using a rotating mirror or cathode ray tube or a pattern produced by a diffraction grating or halogram. Unreacted monomer is removed by washing or solvent extraction.
Patent GB-1349946-A (GB)
Title: Toolholder
IPC: B25G1/00
Filed: 1970-05-22
Abstract: 1349946 Handles MUREX Ltd 20 May 1971 [22 May 1970] 25046/70 Heading B4K A toolholder for a tool 26 comprises parts 2 and 4 detachably joined by projections 12, 14 and sockets 18, 20, groove 24 and bore 22 accept the tool. Bore 22 may be stepped or tapered to take different size tools. The toolholder is moulded from a high density polyethylene.