baber/WOPTO huggingface dataset:
Patent GB-1290090-A (GB)
IPC: G01P3/42
Filed: 1970-08-19
Abstract: 1290090 Automatic control of speed DIABLO SYSTEMS Inc 19 Aug 1970 [30 March 1970] 39896/70 Heading G3R [Also in Division G1] An arrangement for measuring the relative velocity between two members comprises a winding on each member, each winding consisting of a series connection of parallel conductors wherein current flows in opposite directions in adjacent conductors, one winding being fed with an electric current, and the other having induced therein a signal which is modulated in accordance with said relative velocity. As shown in Fig. 3, a rotor has a continuous winding 31 fed by an oscillator 32. The associated stator, Fig. 4, has two windings 29 and 30 in space quadrature each formed from four connected parts. The signals A<SP>1</SP>, B<SP>1</SP>, induced in the windings 29 and 30 will have their amplitudes modulated in accordance with the rotation, and the demodulated signals A, B, derived therefrom by demodulators 47, 48, Fig. 5, have waveforms as in Figs. 6A, 6B (not shown). Signals indicative of the velocity of rotation are obtained by differentiating the "position" signals A, B in circuits 52, 54, Fig.5, and the inverts A, B of A and B are also differentiated. The crests of the four signals A, A, B B are serially added in a commutator 57 to give a ripply D.C. signal E on line 41 whose amplitude is a measure of the relative velocity. The circuit of Fig. 5 is used to control a motor 16 driving magnetic heads associated with magnetic disc storage arrangements, the heads being driven to a desired location following a velocity distance schedule shown in Fig.2. Now the demodulated position signal A is such that each passage of the waveform through zero signifies a specific distance moved. A control unit 62 counts the wavelength of signal A and effects control of the level control unit 61 at counts corresponding to the distances prescribed for the changes from level 26 to 27 and 27 to 28, Fig. 2, to effect the level of the ripply reference signal F derived therefrom. The signals E and F are compared and an error signal is derived to control via drive 46 the speed of the motor 16. A unit 63 is utilized at the "homing region", Fig.2.
Patent GB-1295933-A (GB)
IPC: C07C67/00
Filed: 1970-05-27
Abstract: 1295933 Dehydrogenating paraffins PHILLIPS PETROLEUM CO 27 May 1970 [28 May 1969] 25394/70 Heading C5E [Also in Division B1] Hydrocarbons are dehydrogenated over catalysts comprising zinc oxide or a Group II metal aluminate spinel, nickel, or a platinum group metal, and Ge, Sn or Pb. Examples describe the dehydrogenation of (I) n-heptane over ZnAl 2 O 4  + Pt + Sn + Ba, (II) n-butane over ZnAl 2 O 4  + Pt + Sn + Li, (III) n-butane over ZnAl 2 O 4  + Pt + Sn, (IV) n-butane over ZnO + Pt+Sn, and (V) 2,3-dimethylbutane or 3- methylhexane over ZnAl 2 O 4  + Pt + Sn + Bu.
Patent GB-1296993-A (GB)
IPC: B60S1/08
Filed: 1969-05-27
Abstract: 1296993 Windscreen wipers JOSEPH LUCAS (INDUSTRIES) Ltd 17 March 1970 [27 May 1969] 26637/69 Heading A4F [Also in Division H2] A windscreen wiping system includes a control switch 13 having ON and OFF positions and serving when moved to its OFF position to reverse the current flow to an electric wiper motor 23 to cause wipers to move clear of the windscreen and to trip a limit switch 27 to stop the motor, and means for operating the wipers intermittently, and a further limit switch 28 is incorporated whereby the wipers park on the screen when they are operating intermittently. The wipers may be operated continuously at slow speed by setting the switch 13 to connect terminals 14, 20 together and also terminals 17, 21, so that the brushes 24, 25 of the wiper motor 23 are then connected to the negative and positive supply terminals 12, 11, respectively. For fast speed continuous operation the switch 13 is set to inter-connect terminals 14, 20 and also terminals 18, 21 so that the wiper motor brushes 24, 26 are connected to the terminals 12, 11, respectively. When the switch 13 is set to its off position the terminals 14, 21 and also the terminals 15, 17 are inter-connected, whereby the brushes 24, 25 are connected to the positive and negative supply terminals 11, 12, respectively, so that the motor 23 is reversed to cause the wipers to move off the windscreen to a parking position and halted by the parking switch 27. For intermittent operation the switch 13 is set as shown in Fig. 5 to energize the wiper motor 23 at low speed via the contacts 33, 35 of the limit switch 28, and to charge a capacitor 38 which when charged energizes a relay winding 36 to open a switch 37. On completion of a wiping sweep the limit switch 28 is actuated to engage contacts 32, 35 thereby connecting a resistor 34 across the brushes 24, 25 and stopping the motor 23, which re-starts after the capacitor 38 has discharged through the coil 36 and the switch 37 has again closed, the cycle being repeated.
Patent GB-1297052-A (GB)
IPC: G06F9/305
Filed: 1970-03-02
Abstract: 1297052 Data processing systems SPERRY RAND CORP 2 March 1970 [11 March 1969] 9885/70 Heading G4A In a masking operation the true and inverse values of the n bits of a first operand pass via simultaneously enabled Set- and Clear gates to respective stages of an n-bit register. Subsequently only the Clear gates are enabled so that only the 0-bits of a second n-bit operand pass to tne corresponding stages to set them to zero. Controller 12 transfers an instruction to register 14 under the control of the program in store 10. If this instruction indicates that masking is to occur, unit 20 causes unit 18 to generate first enabling signals on Set and Clear lines 22, 24, followed by a second enabling signal on Clear line 24 only. During the first enabling signals the Set and Clear gates of each stage in register 16 are enabled and the first operand, at the address in store 10 defined in the instruction in register 14, is passed in true and complement form to the register. During the second enabling signal the second operand, held in the instruction in register 14, is passed to the Set and Clear gates. As only the Clear gates are enabled, those stages of the register corresponding to 0-bits in the second operand are set to zero.
Patent GB-1297173-A (GB)
IPC: B65G17/06
Filed: 1970-10-15
Abstract: 1297173 Endless conveyers BAKER PERKINS Ltd 1 Sept 1971 [15 Oct 1970] 49161/70 Heading B8A In an endless conveyer belt comprising a series of parallel rods 2 extending transversely of the belt, and a freely mounted roller on each rod, the rollers being of equal diameter and being alternately staggered transversely of the band to provide two or more longitudinal roller rows with transverse clearance therebetween, the roller pitch is equal to or smaller than the diameter of the rollers. As shown, the rods 2 are carried by spaced chains 1. These however may be replaced by V-belts or other members.
Patent GB-1297861-A (GB)
IPC: G01R19/02
Filed: 1970-02-06
Abstract: 1297861 R.M.S. measurement of irregular waveforms HARTMANN & BRAUN AG 6 Feb 1970 [7 Feb 1969] 5765/70 Heading G1U In order to measure the r.m.s. value of an irregular waveform E, a thermo-converter 2 is alternately connected 1 to the input E during a measuring period, and to the output 9, 10 of a high gain amplifier 4 during a reference period, the input to the amplifier being derived from a storage device 3 which is arranged to store the output of the thermo-converter 2 during measuring periods and to pass to the amplifier 4 the difference between the stored value and the signal produced by the thermo-converter 2 during adjacent reference periods. The output signal from the amplifier can either be applied to an analogdigital converter, not shown, or it can be applied to a subsidiary storage unit 8 to control a meter 15.
Patent GB-1301477-A (GB)
IPC: C10G45/36
Filed: 1969-09-23
Abstract: 1301477 Hydrogenation of unsaturated gasolines BRITISH PETROLEUM CO Ltd 4 Sept 1970 [23 Sept 1969] 46779/69 Heading C5E Hydrocarbon fractions boiling in the range 15-225 C. and containing aromatics, monoolefins, 4-35 wt. per cent of di-olefins and 0À01-1À5 wt. per cent of sulphur of which 10-300 p.p.m. by weight is mercaptan sulphur are passed, together with 200-5,000 SCF/B of hydrogen, over a supported nickel catalyst of which a major proportion of the nickel is present as the metal at a temperature of 50- 250 C., a pressure of 200-3000 p.s.i.g. and a space velocity of 0À2-10 v./v./hr. to produce a product having a reduced di-olefin content (excluding dicyclopentadiene) of below 0À5 wt. per cent and a reduced mercaptan sulphur content of below 30 p.p.m. Suitable feeds are gasolines produced from naphtha by catalytic or thermal cracking at below 593 C. or by thermal cracking at 593-900 C. using diluent steam and/or an inert heat transfer agent such as sand. The feed can contain 2,4-dimethyl-6- tert-butyl phenol as an inhibitor and normally contains 0À3-1À0% of thiophene sulphur. The catalyst contains 1-50 wt. per cent of nickel and is supported on a refractory compound of a metal of Group II, III or IV, e.g. chalk, alumina, sepiolite which can contain 0À1-5 wt. per cent of alkali or alkaline earth metal, silica gel or kieselguhr. The catalyst suitably has a sulphur to nickel atomic ratio between 0À01 and 0À4 when in use and can be presulphided before use, e.g. with a thiophene, thiacycloalkane or a dialkyl mono sulphide.
Patent GB-1310195-A (GB)
Title: Device for feeding a wire tube or rod
IPC: B23K9/133
Filed: 1971-06-25
Abstract: 1310195 Welding by fusion VSESOJUZNY NAUCHNO - ISSLEDOVATELSKY I PROEKTNY INSTITUT TEKHNOLOGII KHIMICHESKOGO I NEFTYANOGO APPARATOSTROENIA 25 June 1971 29848/71 Heading B3R A wire or rod feed device comprises a power driven rotary cage 4 having an axial bore 10 through which the wire 11 may be fed, feed rollers 7, 8 freely rotatably mounted in the cage on pins 5, 6 the axes of which lie at a skew angle to the axis of the cage, the rollers 7, 8 being adapted to feed the wire forwards upon rotation of the cage, and at least a pair of further rolls 12, 13 mounted externally of the cage 4 on axes at right angles to the feed direction B, the rolls 12, 13 being spring loaded and having peripheral grooves so as to grip the wire and thus prevent any tendency to rotation caused by the rolls 7, 8. The wire 11 may be a consumable electrode or weld wire. Alternatively the device may be used for feeding wire in a wire producing plant. Reference is made to feeding soft non-ferrous wire material, e.g. aluminium.
Patent GB-1321028-A (GB)
Title: Plate mounting means for printing cylinders
IPC: B41F27/12
Filed: 1971-08-13
Abstract: 1321028 Printing apparatus TIMSONS Ltd 1 June 1972 [13 Aug 1971] 38101/71 Heading B6C Flexible printing plate 3 is held on, and tensioned about, plate cylinder 1 by engagement of one preferred end 3a with an acute-angled lip 2a on a recess 2 and of another 3a with a slot 4a in a rotatable bar 4 within the recess. In its tensioned position the plate is locked by overdead-centre action of a two-part toggle 5, 6, which is located at one end, or one at each end, of the cylinder and is pivoted at 9 on the cylinder and at 12 on an arm 8 secured to the bar 4. When the plate 3 is to be removed, insertion of a tool in a hole 10 in the free end of the toggle part 5 allows the centre pin 11 of the toggle to be moved adjacent to the cylinder periphery, so that the parts 5, 6 form an acute angle and the slot 4a faces the mouth of the recess 2. Fine adjustment of the tension of the locked plate may be made by adjusting the length of the toggle part 6, by rotation of a screw threaded into the pin 11.
Patent GB-1324090-A (GB)
Title: Manufacture of pulleys for gearbelt transmissions
IPC: B21D53/26
Filed: 1970-11-10
Abstract: 1324090 Making pulleys; forging; rolling A F J CARRIER 1 Nov 1971 [10 Nov 1970] 53309/70 Headings B3A B3H and B3M [Also in Division F2]  A method of making a pulley for a gearbelt transmission comprises forming a metal blank 10 having a cylindrical portion 11 between two integral flanges 12A, 12B, with one or more spaces 15, 25 inside the cylindrical portion, and displacing parts of the cylindrical portion radially inwards to leave teeth 17 round the cylindrical portion. The blank, which may be of aluminium, aluminium alloy or steel, is supported by an anvil 20 having a semicircular recess 21 engaging the cylindrical portion 11. The blank is formed either with a series of holes 15 or an annular recess 25, Fig. 9. In the latter case it is supported on an anvil 27 having an annular projection 28, which is provided with circumferentially spaced axially extending grooves 29. The teeth 17 are formed by a punch 19 in cooperation with either of the anvils 20, 27 or by a toothed rack (23), Fig. 6 (not shown), in cooperation with the anvil 20. Alternatively they may be formed by a toothed wheel in a press. After the teeth have been formed, the pulley is removed from the anvil and what remains of the holes 15 or of the recess 25 is filled with plastics or resin material (22), Fig. 5 (not shown). The pulley may be anodized or plated.
Patent GB-1325582-A (GB)
Title: Apparatus for controlling the mixing of liquids
IPC: F04B49/22
Filed: 1971-10-08
Abstract: 1325582 Mixing liquids in flow in proportions SUN ENG (RICHMOND) Ltd 8 Oct 1971 [8 Oct 1970] 47937/70 Heading B1C Apparatus used in connection with fire fighting handlines 18a and a monitor line 18b, Fig. 1, for controlling the flow of liquids viz water and a foaming agent to be mixed, comprises a housing 10 having inlets 11a, 11b and 13, Fig. 3, for the two liquids, a variable output pump 16 having its suction side connected to receive a mixture of the two liquids from the housing, means such as a valve or valves controlling the inlets, the means being connected to a piston 32 working in a cylinder 33 so that the position of the means is controlled by the position of the piston 32 within the cylinder 33, and means whereby the piston is urged in a direction coresponding to opening of the valve or valves or other means, by the difference between atmospheric pressure and the pressure at the suction side of the pump and in the other direction by means capable of providing a substantially constant force irrespective of the valve position. As described, the valves comprise e.g. six ports 20 in a control sleeve 19 which is surrounded by an annular chamber to which inputs 11a, 11b are connected. The chamber is traversed by an inwardly projecting portion 21 of the foam compound inlet 13. As the sleeve 19 slides from left to right Fig. 1 due to movement of the piston 32 attached thereto, the openings provided by the ports increase. If a handline, or the monitor, is shut down there is a reduction in pump suction. The pump suction is connected to the inner chamber of the cylinder 33 and a chamber 36 is connected to the pump output via a regulating valve. The pressure in chamber 36 thus moves the sleeve to close the valve ports 20 until the restriction on the liquid inlets restores the pump suction to a value at which it balances the constant pressure from the pump output. The sleeve may be set in different angular positions around its axis by adjustment of the spindle 31 by means of a radial arm 41 and thus vary the concentration of foam compound to water from 0-10%. The arm 41 carries a plunger (42) Fig. 2 (not shown) which can enter marked indexing indentations (43). The constant force opposing movement of the piston and valve sleeve may alternatively be provided mechanically or electrically.
Patent GB-1328539-A (GB)
Title: Packaging dental filling and method of and apparatus for spatulating same
IPC: A61C5/66
Filed: 1970-11-10
Abstract: 1328539 Multi-compartement packages INOUE-JAPEX RESEARCH Inc 10 Nov 1970 53432/70 Heading B8C [Also in Division B1] To prepare a dental filling, a package, having a partition separating a liquid component from a powdered component, is squeezed between a support and a roller to cause the partition to rupture and the components to be admixed. The liquid may be contained in an inner tube 5 surrounded by an outer tube 2 containing the powder. Alternatively a weakened transverse seal between two opposed sheets divides the package into two compartments 3, 4. In further embodiments, the inner tube 5 is divided into compartments (3, 3<SP>1</SP>, 311, Fig. 2), the outer tube 2 is replaced by a pair of opposed webs (Figs. 4A, 4B), and the packages are interconnected to form chains. The support may be planar with the roller being hand or motor operated, or the support may be a roller between which and the first roller the package is squeezed.
Patent GB-1331880-A (GB)
Title: Samplers
IPC: G01N1/20
Filed: 1970-12-04
Abstract: 1331880 Sampling particulate material IMPERIAL CHEMICAL INDUSTRIES Ltd 4 Dec 1970 [1 Dec 1969] 37480/71 Divided out of 1331227 Heading B8N Apparatus for sampling particulate material comprises a duct 15 in which the material flows and two apertured members 13, 17 reciprocable relative to the duct, the members being movable together between a first position (Fig. 3) in which the apertures 18, 20 are in register and a second position (Fig. 2) in which the aperture 18 in the upper member 13 is closed by a portion of the lower member 17. When the members are fully withdrawn the sample contained in the aperture 18 is discharged via the aperture 20 into a shoot 21. The upper member includes downwardly directed air bearings 31 and the lower member is supported on upwardly directed bearings 31. Movement of the member is effected by an arm 29 connected at one end to an oscillating shaft 30. A scraper 22 is provided for remvoing excess material from the upper surface of the member 13. The members 13, 17 are preferably of stainless steel, have apertures which are rectangular in plan view, and are coated with flame-sprayed stainless steel and sintered P.T.F.E. To assist in discharging a sample, air may be blown into hole 18 or alternatively, a ram may move downwardly into the hole 18.
Patent GB-1339151-A (GB)
Title: Electrical transformers
IPC: H01F27/32
Filed: 1971-08-16
Abstract: 1339151 Transformers HINCHLEY ENG CO Ltd 16 Aug 1971 38338/71 Heading HIT In a transformer having first and second bobbins 1, 3 on which are respectively wound first and second windings 2, 4 said bobbins are interconnected by an insulating coupling sleeve 9 which receives at least part of each bobbin, said coupling sleeve being provided with a transverse dividing wall 10 which electrically isolates the bobbins and determines a minimum creepage distance of not less than the length of the sleeve. The distance between the surface of the windings and the edge of the side cheeks of the bobbins and the thickness of the walls of the coupling sleeve may be added to the minimum distance. Each bobbin is provided with extensions 13 which shroud a laminated core of U or I section.
Patent GB-1349550-A (GB)
Title: Fire resistant materials
IPC: B32B3/12
Filed: 1972-09-29
Abstract: 1349550 Coated honeycomb IMPERIAL CHEMICAL INDUSTRIES Ltd 29 Sept 1972 [4 Oct 1971] 46044/71 Heading B2E [Also in Division B5] A honeycomb structure formed from films of an aromatic polysulphone is coated with intumescent paint, the maximum dimension of the cell cross-section of the honeycomb structure being equal to, or less than, twice the produot of the thickness of the intumescent paint coating and the expansion factor (i.e. the degree by which the thickness of the coating expands) of the intumescent paint. The honeycombs may have an irregular or regular structure and may be fabricated by superimposing strips of corrugated film and fastening them together where they contact. The polysulphone film forming the honeycomb structures may be coated with the intumescent paint before or after fabrication into the honeycomb structure. Structures may be used as cladding on panels or doors, walls or ceilings, grills in air ducts.
Patent GB-1351286-A (GB)
Title: Electromechanical if filter for television receivers
IPC: H04N5/44
Filed: 1971-05-18
Abstract: 1351286 Surface wave filters MULLARD Ltd 18 May 1971 15482/71 Heading H3U In an I.F. acoustic surface wave filter for a colour T.V. receiver, comprising launching transducers 2, or 12, luminance receiving transducers 4, or 14, and chrominance receiving transducers 3, or 13 mounted on a piezoelectric wafer 1, or 11, the required luminance delay is provided by having the effective spacing of transducers 2, 4; 12, 14 greater than that for transducers 2, 3; 12, 13. The transducers are dimensioned so that the bandpass for the luminance signal is greater than that for the chrominance signal. The transducers 13, 14 may be spaced from each other. The filter may be associated with integrated circuit detectors and amplifiers. The layers 7, 8; 17, 18 are wax damping material. The transducers are formed of gold by a photo-lithographic process. The wafer may be lithium niobate, ammonium dihydrogen phosphate, cadmium sulphide, or a poled ferro-electric ceramic such as sodium potassium niobate, barium titanate or lead zirconium titanate.
Patent GB-1353406-A (GB)
Title: Bottle cap
IPC: B65D41/04
Filed: 1971-07-15
Abstract: 1353406 Caps for bottles CONTINENTAL CAN CO Inc 15 July 1971 33396/71 Heading B8T A cap for use with bottles having screwthreaded necks or screw-thread equivalents such as cam lugs, is formed from metal sheet material and comprises a top panel 13 and a generally cylindrical skirt 11. Corrugations are formed in the skirt which define closely spaced ridges 16 and flutes 17. The flutes extend inwardly and the crests of the ridges are on a level with the surface of the skirt. The cap is applied by a normal crowning machine, being constricted about the neck 23 of a bottle 20 so that portions of the flutes bend over the threads 21 and form thread engaging portions 22. The depth of the flutes is chosen to be the same as the depth of the threads so that portions 22 are level with the ridges and skirt surface. The form of the cap lends itself to use of light gauge tin plate or tin-free steel but in a tamper-proofmodification (Fig. 10, not shown) in which the cap is frangidly connected to a constructed lower skirt edge, a preferred material is aluminium.
Patent GB-1353591-A (GB)
Title: Bottle opener
IPC: B67B7/16
Filed: 1970-06-16
Abstract: 1353591 Bottle openers BENNETT & THORN Ltd 16 June 1971 [16 June 1970] 29030/70 Heading B8T [Also in Division G5] A bottle opener which operates to illuminate a display sign comprises a base 1, fixed to a support, and a claw 3 to remove the crown cork of a bottle. When operated to remove a crown cork, the arms 5, 6 of the claw rotate about a pivot 4 to push the arm 8 of an actuating member on to an arm 11 which engages a contact and illuminates a sign held in a frame 10. When the bottle has been opened, the resilience of the arm 11 breaks the contact. In further embodiments, the display sign may be remote from the base 1, and a spring may be used to help move the parts 5-8 and 11 back to their original positions.
Patent GB-1355498-A (GB)
Title: Pallets
IPC: B65D19/00
Filed: 1970-11-16
Abstract: 1355498 Load handling pallets MacMILLAN BLOEDEL CONTAINERS Ltd 9 Nov 1971 [16 Nov 1970] 54369/70 Heading B8H A pallet consists of a platform 1 of plain or corrugated cardboard or fibreboard secured to foamed-plastics supports 2 formed with recesses 3. In a modification, Fig. 2 (not shown), the supports 2 are inverted. The supports 2 may be secured between a pair of platforms, Figs. 3, 4 (not shown).