baber/WOPTO huggingface dataset:
Patent GB-1393144-A (GB)
Title: Xerographic reproduction apparatus
IPC: G03G15/06
Filed: 1972-08-16
Abstract: 1393144 Developing latent images XEROX CORP 16 Aug 1972 [18 Aug 1971] 38229/72 Heading G2H An electro-photographic apparatus which employs a cascade development device has a development electrode 70 arranged above the electro-photographic surface 60 at the point where developer is cascaded across the surface. The electrode comprises a plurality of taut, parallel, uniformly spaced, elongated wires carried in a frame 71. The wires have a diameter of between 0.004 and 0.05 inches and a uniform spacing of between 0.01 and 0.25 inches. The electrode is preferably arranged with the wires at an angle to the direction of movement of the surface 60 (which may be an endless belt).
Patent GB-1498146-A (GB)
Title: Indication device in plan position indication system
IPC: G01S7/62
Filed: 1975-09-17
Abstract: 1498146 Sonar displays FURUNO ELECTRIC CO Ltd 17 Sept 1975 [15 Nov 1974] 38262/75 Heading G1G [Also in Division H4] A P.P.I. system includes means (e.g. sonar) for transmitting and receiving signals over the whole range (360 degrees) of azimuth at a constant angle of elevation (tilt), the system including a c.r.t. with scanning means to provide a number of concentric circular scan lines, means for brightening one of the circular scan lines, and means for indicating a specific radius having an angle (measured from a reference diameter) equal to the tilt angle. The screen 2 of c.r.t. 1 is scanned with concentric circles, in synchronism with the rotating beam of a TR device 27, by means of sine and cosine generators 11, 12. These are driven from a clock source 15 which emits 1 degree pulses and feeds counters 13, 14. The counter 13 emits the count output in coded form and also produces a pulse at output 16 on completion of every count (360) and a pulse at output 17 halfway (180) through each count. The counter 14 emits on the completion of each count a coded output effective to increase the amplitude of the sine and cosine signals. A specific distance, set in the distancesetting unit 19, is compared with the output of counter 14 in a coincidence gate 18 which supplies a pulse to the beam modulating electrode 5 effective to illuminate the circle having radius corresponding to the set distance. The tilt angle # (e.g. # = 30 degrees) is set in tilt-setter 25 and the beam width α (e.g. α = 10 degrees) is set in a device 26 which has an output corresponding to the complement of half at beam-width (e.g. 90-10/2 = 85 degrees). Circuit 24 produces the difference between the outputs of circuits 25 and 26 (e.g. 85-30 = 55 degrees) and feeds a corresponding signal to coincidence gate 23. A reversible counter 22 is controlled through a flip-flop 21 by the outputs 16, 17 of counter 13 such that it counts from 0 to 180 during the first half of a 360 degree cycle and from 180 to 0 during the second half. The second input of the coincidence gate 23 is connected to the output of the reversible counter 22. Thus, during the first half-cycle, gate 23 emits a pulse at an angle 55 degrees (measured from a zero corresponding to radius OY') and causes circuit 28 to generate the (pre-set) angle α. The generator 28 is connected through OR gate 20 to the modulating electrode and is effective to produce on the screen an illuminated sector of width α (10 degrees) at a radius 35 which meakes an angle # (30 degrees) with the horizon reference diameter OX. At the start of the second half of the cycle, a signal corresponding to α is fed from a pre-set circuit 29 to the reversible counter 22 and subtracted from the content of the counter. Thus, during the reverse run of the counter, the count of 55 is reached earlier by 10 pulses at a radius 34', and the sector of width α between radii 33' and 34' is illuminated. The horizontal distance and depth of a chosen object 32 are given respectively by the distances s and d on the screen.
Patent GB-1259721-A (GB)
Title: Porous silicate
IPC: C11D17/00
Filed: 1969-07-30
Abstract: 1,259,721. Puffed detergent granules. PHILADELPHIA QUARTZ CO. 30 July, 1969 [30 July, 1968], No. 38316/69. Heading C5D. [Also in Division C1] In Example 3, 0À1% of silicon powder, an equivalent amount of sodium hydroxide, and water, are added to a molten mixture of sodium metasilicate plutahydrate, sodium tripolyphosphate or a non-ionic surfactant (octylphenoxy polyethoxy ethanol) at 70 C. causing the mixture to puff. The mixture is poured into moulds to expand and crystallize.
Patent GB-903511-A (GB)
Title: Improvements relating to mechanical diggers
IPC: E02F3/42
Filed: 1958-12-01
Abstract: 903,511. Shovelling machines. MASSEYFERGUSON Inc. Dec. 1, 1958 [Dec. 6, 1957], No. 38594/58. Class 68 (1). A boom-supporting swivel post 35 is rotatably mounted in a bracket 20 slidably mounted on and normally secured to a pair of guide rails 18, 20 extending across a frame 10 secured to the rear of a tractor 11. Thus the bracket can be moved along the rails to positions most suitable for the operation of the implement, e.g. a scoop, mounted at the end of the boom 38.
Patent GB-1386599-A (GB)
Title: Injection moulding
IPC: B29C45/74
Filed: 1971-08-18
Abstract: 1386599 Injection moulding machines CAMERON-PRICE (MACHINES) Ltd 17 Nov 1972 [18 Aug 1971] 38707/71 Heading B5A An injection moulding machine barrel comprises a cast body 1 having a tubular wear resistant liner 2, an integral water jacket 6 and at least one hollow formation extending into the body and shaped to receive a heating element. The hollow formation may be an annular recess 25 to receive an annular heating element 26. Alternatively it may be a radial hole for a rod shaped element. The liner may be a tight interference fit in the body 1, but may be replaceable when worn.
Patent GB-1109277-A (GB)
Title: Improvements in and relating to grinding machines
Inventor: FRANKE GUNTER
IPC: B24B41/06
Filed: 1965-09-13
Abstract: 1,109,277. Grinding twist drills. MIKROMAT DRESDEN, VEB. 13 Sept., 1965, No. 38944/65. Headings B3B, B3D and B3T. A grinding machine for relieving twist drills comprises an axially-movable sleeve 9 having a dog on each end, the forward dog 16 for engaging a dog 16<1> fixed to the machine frame to locate levers 10, 10<1> on the sleeve to engage the flutes of a twist-drill blank delivered to the machine, and the rearward dog 8<1> for engaging a dog 8 on the work-spindle drive means 6 to ensure correct positioning of the drill in relation to the drive means.
Patent GB-1198145-A (GB)
Title: 2D-Hydroperoxy-delta<16>-Steroids of the Pregnane Series
IPC: C07C/
Filed: 1967-08-24
Abstract: 1,198,145. 20-Hydroperoxy-#<SP>16</SP>-steroids. UPJOHN CO. 24 Aug., 1967 [26 Sept., 1966], No. 39083/67. Heading C2U. Novel steroids of the formula (wherein the 1(2), 3(4), 4(5), 5(6), 6(7) and 9(11) carbon atom linkages may be single or double bonds; E is tetrahydropyranyl, tetrahydrofuranyl or -C(R<SP>3</SP>)(OR<SP>4</SP>)-CH.R<SP>1</SP>.R<SP>2</SP> in which R<SP>4</SP> is alkyl, halo-alkyl, nitro-alkyl, alkenyl, cyclo-alkyl, aryl, aralkyl, halo-aryl, halo-aralkyl or nitro-aryl of 1 to 24 carbon atoms, and R<SP>1</SP>, R<SP>2</SP> and R<SP>3</SP> have the same meanings as R<SP>4</SP> or are H; V is H or OH; W is H, CH 3 , Cl or F; Y is CH (α- or #-OH) or an acylate thereof, or a C 1-6  alkyl ether if there is a #<SP>3</SP> double bond, or is CO or an alkylene ketal thereof derived from a glycol HO(CH 2 ) n .C(R<SP>1</SP>) 2 .(CH 2 ) n OH in which n is zero, 1 or 2 and R<SP>1</SP> is H or C 1-6  alkyl, and when Y is CO there may be single or double bonds in the 1(2), 4(5), 5(6), 6(7) and 9(11) positions; and Z is CH 2 , CH(α- or #-OH) or CO, and, when W in position 9 is Cl or F, Z may also be CHCl or CHF) are prepared by subjecting to photosensitized oxygenation corresponding steroids containing no 16(17) unsaturation and containing in the 17-position the group =CH-CH 2 -O-E. These starting materials are in turn prepared from the corresponding free 21-ols and the appropriate vinyl ethers. The steroids of the invention, which are stated to possess anti-inflammatory activity, may be made up into pharmaceutical compositions with suitable carriers.
Patent GB-1198057-A (GB)
Title: Improvements in or relating to Over-End Winding of Yarn
Inventor: BISSET DOUGLAS CHISHOLM
IPC: D01H1/30
Filed: 1966-09-01
Abstract: 1,198,057. Spindle drive. IMPERIAL CHEMICAL INDUSTRIES Ltd. 14 Aug., 1967 [1 Sept., 1966], No. 39114/66. Heading D1D. In over-end winding of yarn using a rotating spindle and traverse, the speed of rotation of the spindle is varied cyclically about selected values thereof during the winding of the package, or about such a value maintained constant throughout winding, and the frequency of the cyclical variation is measured and, if necessary, varied directly in relation to the traversing frequency so that cyclic variation frequency: traversing frequency is never one consisting of whole numbers less than 5 such as would of itself lead to patterning occurring. The ratio may be maintained constant or varied during winding. The traverse may oscillate at a constant rate. The amplitude of the cyclical variation may be 3-15% of the instant mean spindle speed and it can be varied according to a programme, using a computer, the mean spindle speed may be gradually reduced during the whole of the winding period. The method of the invention may be combined with more radical programming of spindle speed and controlled or random variation in ring speed or yarn delivery speed. In the Examples the cyclical frequency is 5 and 10% of the instant mean speed which is reduced from 9,750 to 7,350 r.p.m. and the ratio is maintained constant at 3.25 and 7.1. Specifications 1,198,056 and 1,198,058 are referred to.
Patent GB-900058-A (GB)
Title: Apparatus for inverting crates and like containers
Inventor: BIDDLE JAMES HENRY
IPC: B65G65/00
Filed: 1959-11-19
Abstract: 900,058. Conveyers; tipping crates and other containers. YOUNG, S. J. Nov. 18, 1960 [Nov. 19, 1959], No. 39344/59. Classes 78 (1) and 78 (4). Apparatus for inverting crates and like containers from a bottom down to a bottom up position to empty them of debris comprises an endless conveyer 5 which, in cooperation with a step member 19, causes the leading edge of the crates to drop on to a roller 11. A V-belt 10 driven by a pulley 9 mounted on the delivery-end roller 6 of the conveyer 5 rotates the roller 11 clockwise and in passing round a pulley 13, operates an endless upwardlyinclined conveyer 15. A further conveyer 18 is driven by a belt 22 from the shaft of the pulley 13. When the leading edge of a crate in a bottom down condition reaches the roller 11, the edge is dragged back against the direction of travel of the conveyer 5 and the crate is inverted to drop on to a roller conveyer 14 in a bottom up position. The crate travels by gravity down the conveyer and the shaking it receives assists in emptying the crate of debris which falls between the rollers and into a bin 23. At the delivery end of the conveyer 15 the crate topples over a stop 20 on to a step 17, this movement carrying the crate on to the conveyer 18 in a bottom down position.
Patent GB-1281095-A (GB)
Title: Improvements in or relating to a rearwheel suspension assembly in a vehicle having independently suspended wheels and trailing suspension links
IPC: B60G7/02
Filed: 1970-08-17
Abstract: 1281095 Independent rear suspensions AUTOMOBILES PEUGEOT and REGIE NATIONALE DES USINES RENAULT 17 Aug 1970 [30 Oct 1969] 39504/70 Heading B7D In an independent rear suspension comprising trailing links 2 connected to a vehicle body 6 for pivotal movement about a generally transverse axis, each rear wheel 1 is mounted on a stub axle 8 integral with a carrier 93 which is connected to the link 2 by resiliently yieldable pivot means. The pivot means defines a pivot axis located to the rear of the stub axle 8 and comprises rubber sleeves 12, 13 on a pivot pin 10. The carrier 9 is rigidly connected to a telescopic suspension strut including a damper 15 and coil spring 16. Each link 1 is connected by spaced pivots 4, 5 either directly to the body 6 or to a cross-member 3 resiliently mounted on the body.
Patent GB-889771-A (GB)
Title: Improvements in or relating to metal-clad electric fusegear, switchfuses and the like apparatus
Inventor: MARTIN KENNETH
IPC: H01H1/58
Filed: 1958-12-09
Abstract: 889,771. Junction boxes; binding posts. GENERAL ELECTRIC CO. Ltd. Dec. 9, 1959 [Dec. 9, 1958], No. 39662/58. Class 38 (1). A neutral connector, for electric fusegear and the like, comprises a terminal bar or block 9, e.g. of brass, slidably mounted and held by a screw 13 in a clip-like member 10 which is secured by screws in a recessed portion of the porcelain body 2 of the fusegear, the bar 9 having lead receiving holes 14 and fixing screws 15. Specifications 889,770 and 889,772 are referred to.
Patent GB-1329385-A (GB)
Title: Fixed word stores
IPC: G11C17/00
Filed: 1971-08-24
Abstract: 1329385 Read only stores SIEMENS AG 24 Aug 1971 [31 Aug 1970] 39728/71 Heading G4A Coupling elements are provided at selected intersections of word lines W1-W3 and readout lines L1-L3 and an additional line L0 coupled to all the word lines is provided to produce a blanking pulse enabling output gates G1-G3 at the centre of the read-out pulse. The coupling elements F may be diodes, capacitive or, as shown, inductive, each line L0-L3 being in the form of a loop with sections A, B aiding each other in L0 and opposing each other in L1-L3. Application to telephone exchanges is mentioned.
Patent GB-1242753-A (GB)
Title: Improvements in or relating to analogue multiplier circuits
Inventor: PORT ERICH
IPC: G06G7/163
Filed: 1968-08-20
Abstract: 1,242,753. Analog multipliers. WESTERN ELECTRIC CO. Inc. 20 Aug., 1968 [24 Aug., 1967], No. 39800/68. Heading G4G. In a multiplier a data signal at input 11 passes through inhibit gate 14 and resistor 16 to drain 17 of FET 18 whose source 19 is returned to inverting input 21 of operational amplifier 22 and maintained at virtual ground; when output voltage of the amplifier is proportional to the source-drain voltage derived by the source-drain impedance and multiplied by amplifier feedback resistance 23, and thus to the product of the input signal and sourcedrain conductance. Resistor 26 returns the drain 17 to inverting input of operational amplifier 24 also connected over resistor 28 to output of amplifier 22, so that output signal at 13 is proportional to the product of the input signal and the source drain conductance; and may be multiplied by positive, zero, or negative factors by adjustment thereof in response to the gate-source voltage controlled by integrating operational amplifier 29, whose non- inverting input is energized from a divider 32, 33 having equal arms between ground and drain 17 to linearize the source/drain current to source/drain voltage characteristic of 18, and maintain the gate/source A.C. voltage at ¢ the drain/source A.C. voltage. A differential adjusting signal at input 12 is connected to the inverting input of 29 over resistor 37, and its integral controls the sourcedrain conductance and thus the multiplier of the input signal, to produce product on output 13. A positive impulse at input 38 presets the initial multiplier value by application to gate 41 to block input 11, and is applied over resistor 43 to the non-inverting input of differential amplifier 29 ; resistor 43 replacing resistor 16 in series with the source to drain impedance so that the latter determines voltage at 17. Transistor 46 is saturated to apply reference voltage 47 to inverting input at 29 to override signals from input 12, whereby the non-inverting input at 29 becomes the summation point of a negative feedback loop including FET 18, and amplifier 29, which is driven from divider 32, 33 to vary the gate voltage of the FET 18 until the drain voltage is twice the reference voltage of source 47, and capacitance 31 is charged to hold the gate voltage at this value, so that the source drain impedance assumes a corresponding value. On removal of preset signal, the gate voltage is half its sourcedrain voltage + the voltage on capacitor 31 and differential adjusting signals at input 12 are integrated by capacitor 31 to vary the source/drain impedance accordingly.
Patent GB-1592409-A (GB)
Title: Control of insects with 2-ethyl-1,6-dioxopiro-(4.4)nonane
IPC: C07D493/10
Filed: 1977-09-23
Abstract: The present invention relates to a composition for the control of insects of the order of Pityogenes chalcographus which comprises together with a carrier substance a compound of formula    <IMAGE> (I)  Method of attracting bark beetles of the said class. Process for the preparation of the spiro derivative of formula (I) starting from non-4-yn-1,7-diol.
Patent GB-998601-A (GB)
Title: Method for producing stereo-regular polymers of olefines
IPC: C08F10/00
Filed: 1961-11-07
Abstract: Stereoregular polyolefines are produced by contacting an olefine with a catalyst consisting of a transition heavy metal halide, a zinc, cadmium or mercury alkyl compound, and at least one of the following: (A) nitrogen-containing organic compounds having no direct linkage between the nitrogen and hydrogen atoms, (B) phosphine derivatives PR3, where R is chosen from alkyl, aryl, aralkyl and cycloalkyl radicals, (C) ethers and (D) phosphoric and phosphorous acid esters. The transition heavy metal is a metal belonging to Group IVa, Va, VIa and VIII of the Mendel<\>aeeff Table.  Compounds (A) may be tertiary alkylamines, tertiary arylamines, tertiary arylalkylamines, heterocyclic nitrogeneous compounds, condensed heterocyclic nitrogeneous compounds, acid amide derivatives, urea and thiourea derivatives. Extensive lists of catalyst components are given.  The polymerization may be carried out in an inert liquid hydrocarbon medium.  In the examples, propylene is polymerized using as catalyst (a) diethyl zinc, titanium trichloride prepared by reducing titanium tetrachloride with hydrogen and one of the following triethylamine, pyridine, acridine, hexamethylphosphoric triamide, triphenylphosphine, tetrahydrofuran and dimethylformamide or (b) diethyl cadmium, titanium trichloride prepared by reducing titanium tetrachloride with aluminium and one of the following trimethylamine, triethylphosphite and N,N-diethylaniline.
Patent GB-1483201-A (GB)
Title: Inverter arrangements
IPC: H02P27/06
Filed: 1974-09-12
Abstract: 1483201 Inverting SIEMENS AG 12 Sept 1974 [21 Sept 1973] 39911/74 Heading H2F A three-phase inverter arrangement comprises six single-phase inverters arranged to produce periodic voltages of the same frequency and substantially identical trapezoidal waveforms differing in phase, the trapezoidal waveforms having rise and fall times in the range 25/360 to 36/360 of the period and produced by the relatively slow charge and discharge of the commutating capacitor of the individual inverters from the D.C. supply. The trapezoidal waves from the individual inverters are combined to provide a substantially sinusoidal three-phase output. As shown in Fig. 2, each individual inverter 1 ... 6 includes the centre-tapped primary of a respective transformer a ... f having the secondaries connected as shown to terminals x, y, z of a synchronous motor or data-processing installation. Fig. 4 (not shown) depicts a graph relating the total harmonic distortion in the substantially sinusoidal combined output of the individual inverters to the electrical angle occupied by the linear rise or fall times of the trapezoidal waveform from the individual inverters and shows that if the angle is 15 degrees the distortion is at a minimum of approximately 1%. Each individual inverter is as shown in Fig. 5 and comprises a pair of thyristors n1, n2 arranged to be alternately conductive so as to switch the current I L  in inductor v alternately through the two halves of the centre-tapped primary of transformer Tr. The turning on of either thyristor n1 or n2 discharges the commutating capacitor C substantially linearly through the conductive thyristor and thus provides the linear substantially slow rise and fall of the trapezoidal output waveform. Circulating currents are controlled by free-wheeling diodes n11, n12, n21, n22 connected to tappings A1, A2 on the transformer Tr. The currents on the A.C. side are monitored and combined to provide a signal Ia which is compared at S with the inductor current I 1  so that in the ease of an overload surge, triac T is turned on, connecting C1 to change the value of the commutating capacitor C.
Patent GB-1185457-A (GB)
Title: Apparatus for Cutting a Strand of Material.
Inventor: PEYER SIEGFRIED
IPC: B65H54/71
Filed: 1968-08-23
Abstract: 1,185,457. Cutting strand material. S. PEYER. 23 Aug., 1968 [23 Aug., 1967], No. 40396/68. Heading B4B. An apparatus for cutting a lengthwise displaceable strand 5 of material e.g. textile yarn, comprises a cutter 26 co-operable with a rotatable anvil 30, the strand being in contact with the roller such that during each cutting operation the anvil body is rotated slightly. The cutter 26 is mounted in a support 24 which is actuated by a solenoid 14 via a lever 16. The anvil is formed of a material which is softer than the material from which the cutter is made e.g. the anvil material may be brass, unhardened steel or plastics. In modifications the anvil may be conical and the cutter edge inclined correspondingly or the cutter edge may bestraight and the axis of the conical anvil inclined. Alternatively the strand material may be fed across the end surface of the anvil and the cutter arranged to co-operate with the latter surface (Fig. 3, not shown).