baber/WOPTO huggingface dataset:
Patent GB-975797-A (GB)
Title: A matrix arrangement for reading digital signals
IPC: G11C11/06
Filed: 1962-08-29
Abstract: 975,797. Magnetic storage matrices. SIEMENS & HALSKE A.G. Aug. 29, 1962 [Sept. 1, 1961], No. 33239/62. Heading H3B. Spurious pulses in the output winding of a magneti e core matrix are detected by a differentiating circuit which sets a bi-stable trigger circuit when the absolute value of the rate of change of the output voltage exceeds a certain value. The invention is described in use with a matrix of " AND " gates which have a constant bias current applied so that a core changes state only when column, row and input currents coincide. The read winding 1 is connected through " AND " gate 51, which is strobed between times t1 and t2, to a trigger stage K1 which detects the output amplitude to read a " ONE " or " ZERO." The read winding L is also connected through a differentiating circuit C, R to " AND " gate 52 which is strobed for a slightly longer and overlapping interval than gate 51. The output of gate 52 sets a bi-stable trigger circuit K2 which may cause the core to be re-read before an output pulse is produced. It is stated that one differentiating circuit may be used to detect spurious pulses at the output of several matrices connected in series. The matrix may be used to connect a number of conductors to the input of a data processing system.
Patent GB-980602-A (GB)
Title: A new or improved method of and apparatus for measuring discontinuities in steel andother metals
Inventor: DAVIES PETER MALCOLM
IPC: G01N21/89
Filed: 1962-08-30
Abstract: 980, 602. Detecting defects photo-electrically. G. K. N. STEEL CO. Ltd. Nov. 29, 1963 [Aug. 30, 1962], No. 33274/62. Heading G1A. [Also in Division G4] A sample 2 of steel or other metal is scanned along a succession of parallel lines by being driven mechanically in two orthogonal directions by an electric motor. A pencil of light is directed on to the sample so as to affect a photo-cell 4, any surface defect blacking out the reflected light. A slotted disc 8 produces a set of reference pulses related to distance, applied to terminal 20, Fig. 5. A defect applies a pulse to terminal 21 and opens gate 25 to pass a number of pulses from 20 indicative of the length of the defect. Dividers 30-33 and flip-flops 34-37 enable counts to be made at 43-47 of defects of different orders of size. The total area of the sample is registered at 49 and the defective area at 48 so that the ratio of 48 to 49 gives a measure of the quality. The sample may be observed visually through microscope eyepiece 6.
Patent GB-1529660-A (GB)
Title: Dispensing pump
IPC: B65D47/34
Filed: 1977-08-09
Abstract: 1529660 Hand actuated reciprocating pumps D F CORSETTE 9 Aug 1977 [31 Aug 1976] 33377/77 Heading F1A A dispensing pump for mounting on a container has a pumping chamber 23 defined between a fixed piston 20, an annular plunger 21 reciprocable over the piston, and a head 30 having a blind socket 31  slidably receiving the annular plunger, the arrangement being such that when the pressure developed in the chamber 23 by depression of the head 30 is sufficient the annular plunger 21 slides outwardly of the socket 31 against the bias of a spring 24 and uncovers a discharge passage 38. An outwardly extending peripheral flange on a skirt 37 of the head engages with an inwardly extending flange on a body 10 to prevent the spring from forcing the plunger 21 and head 30 off the piston 20. A hole 17 for venting the container and for returning fluid leaking past the piston to the container is provided. Fluid enters the chamber through a dip tube 27 controlled by a flap valve 28.
Patent GB-1183737-A (GB)
Title: Difluorochloromethylaryl Ureas, their preparation and use as Herbicides
IPC: C07C275/30
Filed: 1967-07-20
Abstract: 1,183,737. Herbicides containing difluorochloromethylphenyl ureas. FARBWERKE HOECHST A.G. 20 July, 1967 [22 July, 1966 (2)], No. 33418/67. Heading A5E. [Also in Division C2] A herbicidal preparation comprises as active ingredient a compound of the formula in which R 1  represents an alkyl or alkoxy radical each having 1 to 3 carbon atoms and R 2  represents a hydrogen atom or an alkyl radical having 1 to 3 carbon atoms (see Division C2) together with a solid or liquid inert substance or surface active substance, an adhesive, grinding auxiliary or emulsifying agent, other biocidal compound or fertiliser. Wettable powders are described comprising N-3- difluoro-chloromethylphenyl-N<SP>1</SP>, N<SP>1</SP>-dimethyl urea and -N<SP>1</SP>-methyl urea silicic acid, dried sulphite waste liquor and wetting agent.
Patent GB-796812-A (GB)
Title: Scraper bar for scraper conveyors
Inventor: WILSON ERIC CURWEN
IPC: B65G19/22
Filed: 1954-11-28
Abstract: 796,812. Endless scraper conveyers. CHAIN ANNEALING CO., Ltd. Nov. 18, 1955 [Nov. 18, 1954; Feb. 28, 1955], Nos. 33465/54 and 5932/55. Class 78 (1). A scraper bar 10 of an endless conveyer is formed of I-section side pieces 11, 12 and a bowed intermediate length. 18, the bar being connected at 13 to the conveyer driving chains. Alternatively, the bowed portion may be replaced by a straight ribbed portion.
Patent GB-398156-A (GB)
Title: Improvements in or relating to the coating of fabrics
IPC: D06M15/09
Filed: 1931-12-03
Abstract: 398,156. Loud-speaker fabrics. DU PONT DE NEMOURS & CO., E. I., Wilmington, Delaware, U.S.A. Dec. 3, 1931, No. 33543. Convention date, Dec. 3, 1930. Void [Published under Sect. 91 of the Acts]. [Class 40 (iv).] Taut fabrics for loud-speakers are made by applying to a stretched fabric a coating composition containing a cellulose ether such as ethyl, benzyl and crotyl cellulose. Cellulose esters such as cellulose acetate, plasticizers such as castor oil, tricresyl phosphate and dibutyl phthalate, dyes, pigments and resins may be added. One or more undercoats, which may or may not contain a cellulose ether, may be applied prior to the finishing coat.
Patent GB-453319-A (GB)
Title: Improvements in carrying cases for typewriters
IPC: B41J29/04
Filed: 1935-12-04
Abstract: 453,319. Hinges. FAIRWEATHER, W. C., 65, Chancery Lane, London.-(Underwood Elliott Fisher Co. ; 342, Madison Avenue, New York, U.S.A.) Dec. 4, 1935, No. 33573. [Class 65 (ii)] [See also Group XVI] The baseboard and cover 13, 14, Fig. 7, of a typewriter case are detachably connected by means of hinges consisting of leaves 43, 44 provided with a pin 47 and socket 48, the leaf 43 being provided also with a grooved rest 51 for facilitating application of the socket. To prevent lateral movement of the cover, one of the hinges is provided with a spring-catch 54 which co-operates with a groove 57 in the pin.
Patent GB-1492461-A (GB)
Title: Dental fixture
IPC: A61G15/16
Filed: 1975-08-12
Abstract: 1492461 Swingable trays SIEMENS AG 12 Aug 1975 [19 Aug 1974] 33606/75 Heading A4B [Also in Divisions AS and A6] A dental stand comprises a housing 1 having two cabinet elements 3, 4 which define a recess 12 therebetween containing a pivotable handpiece holder 5 mounted on a telescopic support arrangement 9 whereby the holder 5 may be withdrawn from the recess and rotated to a desired position. The holder may also include, Fig. 2 (not shown), an instrument tray which may rotate independently of the holder or they may be attached to rotate together. In an alternative embodiment, Fig. 4 (not shown) the support arrangement comprises two pivotally linked arms which move in a cavity at the base of the housing. In a further embodiment, Fig. 6 (not shown), the support arrangement is a single arm in a cavity in the base of the housing, two recesses being provided one on either side of the arm. The handpieces 7 may be arranged on the holder in two parallel rows, in two rows at 90 degrees to each other or on part of a circle, Fig. 5b to 5d (not shown), with guides being provided on the holder to manoeuvre it into the recess. The height of the cabinet is 80 cms and it is 35 cms wide. The recess is 50 to 60 cms deep. The holder and instrument tray may rotate through 180 degrees.
Patent GB-323865-A (GB)
Title: Improvements in and relating to scarifiers for treating lawns and the like
IPC: A01B1/24
Filed: 1928-11-17
Abstract: 323,865. Cooper, T. Nov. 17, 1928. Multiple-tool implements; adjusting parts; tools; wheels, arrangement of.-A scarifier for use on lawns &c. comprises a transverse bar carrying pointed tines or teeth and mounted on vertically adjustable. end wheels. The prongs 2 may be cranked or bent, and may be fixed in two or more rows in staggered relation. They are adjustably fixed by nuts 3 on opposite sides of the bar 1. One row may cut deeper than the other. The wheels 8 are mounted on vertical standards 7 adapted for longitudinal up and down adjusting movement. The standards 7 are secured in slotted U-shaped brackets or clips 4 by the same screws 5 that secure the brackets on the bar 1. The handle-bars 10 are connected together by one or more transverse rods 11. They are pivoted on brackets 13 provided with slotted quadrants 14 to receive bolts 15 for adjustably securing the bars 10 in position. The implement may be operated by two persons each gripping one of the rods 11.
Patent GB-480981-A (GB)
Title: Improvements relating to the extraction of cashew nut-shell oil
IPC: C11B1/04
Filed: 1936-12-09
Abstract: <PICT:0480981/III/1> Apparatus for conditioning cashew nuts, preparatory to the extraction of oil from the shells thereof by heat-treatment of the whole nuts in an oil bath, comprises means b whereby the nuts are automatically surface-wetted, an elevator or conveyer a for carrying the nuts from the wetting means, a bin or receptacle e to which the nuts are fed by the elevator and in which they are allowed to stand for a predetermined time, and a second elevator or conveyer f which receives the nuts from the base of the bin or receptacle e and forwards them either to the hopper or shoot r of the heat-treatment plant, or to one or more further bins e and associated delivery elevators, the last of which feeds the heat-treatment plant.  The wetting means b comprises a tank through which the lower part of the elevator a passes, and to which the nuts are fed from a hopper c.  The buckets a1 of the elevator a are perforated to allow drainage of the water.  A rotary trommel j having a cylindrical surface built up from longitudinal spaced bars may be provided between the apparatus and the hopper or shoot r of the heat-treatment plant.  Specifications 472,195 and 474,737 are referred to.
Patent GB-804981-A (GB)
Title: Improvements in or relating to the production of aluminium-containing synthetic resins
Inventor: SCHLENKER FELIX DR
IPC: C08G79/10
Filed: 1955-11-25
Abstract: Aluminium-containing synthetic resins are prepared by reacting an aluminium alcoholate stabilized by a compound exhibiting keto-enol tautomerism, the molecular ratio of the alcoholate to the keto-enol tautomer being 1:1 to 1:2.5, with a polyhydric alcohol which is free from ester groups (other than a monoalkylene glycol having at least 6 C atoms or a polyalkylene glycol having 2-10 alkylene radicals each of which contains 3-4 C) and the reaction product is freed of its volatile components by distillation, the molecular ratio of alcoholate to alcohol being 1:0.25 to 1:2.  The reaction is preferably carried out by refluxing for 1-3 hours in a toluene solution and the product is freed of volatiles by distilling at 150-180 DEG  C. at normal or reduced pressures in an atmosphere of air or nitrogen. Stabilizers specified are keto carboxylic acid esters, e.g. ethyl aceto-acetate; b  di-ketones, e.g. formyl- and acetyl-acetone; malonic acid esters, e.g. diethyl malonate. Polyhydric alcohols specified are ethylene glycol, butane-1 : 3-diol, butane-1 : 4-diol, propane-1 : 3-diol, but-2-yne-1 : 4-diol, but-2-ene-1 : 4-diol, butane - 1 : 2 : 4 - triol, 3 - hydroxymethylpentane - 2 : 4 - diol (hexane triol), pentaerythritol, trimethylolpropane, triethanolamine, thiodiglycol, 2 : 2-dimethyl-1 : 3-propylene glycol.  Alcoholates specified are aluminium-n-butylate, iso-propylate, hexylate, octylate, decylate, octadecylate.  Other optional ingredients are oils, alkyd, epoxy or plasticized hydrocarbon-soluble phenol-aldehyde resins, benzene or petroleum hydrocarbons, turpentine, toluene, nitrocellulose, alcohols, ketones and esters.  Many examples are given.  Reference has been directed by the Comptroller to Specification 718,283.ALSO:Aluminium alcoholates are stabilized by treatment with 1 to 2.5 molar proportions of a compound exhibiting keto-enol tautomerism or a mixture of such compounds, e.g. keto carboxylic acids, b -diketones and malonic acid esters, whereby are obtained aluminium alcoholates reactable with polyhydric alcohols in specified manner (see Group IV (a)) to give resins which are readily soluble in resin solvents as compared with the resins obtained from the aluminium alcoholates which are untreated or only weakly stabilized with less than a molar amount of the keto-enolic compound.  In Example (1), aluminium n-butylate (1 mol.) is boiled for about an hour with ethyl aceto acetate (1 1/2 mol.) or is similarly stabilized with diethyl malonate.  Other examples refer to the stabilization of aluminium hexylate, octytate and decylate with ethyl aceto acetate and of aluminium octadecylate with diethyl malonate.  Formyl- and acetyl-acetone are other specified stabilizers.  Reference has been directed by the Comptroller to Specification 718,283.
Patent GB-338993-A (GB)
Abstract: 338,993. Deurrieux, A., Pomaredes, J., and Perret, L. June 29, 1928, [Convention date]. Divided on 314,548. Totalizators.-In a totalizator employing an impulse collector for each horse, as in Specification 294,181, a commutator switch rotates in timed relation with the collector brushes so as to ensure that the various banks of contacts on the collector and their brushes are brought into action singly although the banks are swept simultaneously. Moreover an arrangement is described whereby according to the value of the stake laid the counter may be advanced through one step or two steps. Figs. 1 and 2 show a switch consistipg of four discs 169 fixed to a. shaft 171 and covered with conducting material except on a half or other portion of the circumference. Engaging the flat surfaces of the discs are brushes 172 while other brushes 173 rub against the peripheries. The shaft 171 is geared in a desired ratio with the, collector shaft 109<1> so that the banks of contacts simultaneously swept, by the brushes are nevertheless rendered effective selectively only. Fig. 4 shows an arrangement whereby a counter may be advanced by one unit or by two units according as one electromagnet is energized or two. The armature. of magnet 174 advances the wheel 181 upon energization, whereas the other magnet 175 advances it when de-energized. If both magnets are operated, therefore, the counter receives two steps. Fig. 5 illustrates a collecting and counting arrangement for receiving bets of different values from various numbers of machines. The machines 5 and 10 frano bets are connected up respectively with two fifty-contact banks M1, M2 swept by brushes N1, N2 brought into action in succession by commutator discs 01, 02 rotating at half the rate of the brushes. Similarly brushes N3, N4 wipe over contacts wired to 50 franc and 100 franc machines. During the first half-rotation of the brushes, brushes N1 and N3 only are operative, owing to the conducting surfaces 170, and the counter is advanced in each denomination one step for each live contact. In the second half-rotation, however, brushes N2 and N4 become effective, the surfaces 170 of both discs 02,. 04 being in action, to allow each impulse to energize both magnets in each denomination to advance the corresponding counter two steps. During the next half rotation of the brushes, N1 and N2 are out of circuit, N3 and N4 operate as before, and brush N5 functions to collect the 500 and 1000 franc bets in a similar manner. Finally in the fourth half rotation a brush N6 collects from 25 additional 5-franc contacts to send impulses again to the lowest denomination.
Patent GB-1102633-A (GB)
Title: Improvements relating to a method for producing gallium phosphide diodes
IPC: H01L21/00
Filed: 1966-07-28
Abstract: A gallium phosphide light emitting junction diode is produced by heating a solution of gallium, gallium phosphide and shallow acceptor and donor dopants in the absence of oxygen and cooling to provide dendritic crystal growth with PN junctions.  In the embodiment gallium and gallium phosphide in the weight ratio of 10 : 1 are heated in a tube 1 for degassing and donor and acceptor dopants from depression 3 of the tube are then added; the acceptor may consist of zinc or cadmium and the donor of sulphur, selenium or tellurium.  The tube is sealed, heated to 1120 DEG  C. for 2 hours and cooled slowly ( 1/2 to 2 hours) so that segregation occurs <PICT:1102633/C4-C5/1> <PICT:1102633/C4-C5/2> to provide NPN crystals; excess gallium is removed by dissolving in hot hydrochloric acid.  Contacts are made by alloying a zinc gold alloy through the thin N-type layer to the central P region and by alloying tin and gold to the other N-type region, as shown in Fig. 3b. Alternatively the thin N-type layer can be removed by etching.  The device emits light at 5680 <\>rA.
Patent GB-446192-A (GB)
Title: Improvements in and relating to snow ploughs
IPC: E01H5/06
Filed: 1934-11-27
Abstract: 446,192. Snow ploughs. TEALE, J., 7, Swainehill Terrace, and THOMPSON, J. E., Kirk Lane Works, both in Yeadon, Yorkshire. Nov. 27, 1934, No. 34026. [Class 107] A snow plough, of which Figs. 1 and 2 are front and side views respectively, consists of a chassis carrying a pyramidal structure with the rear slope omitted, either one or both of the sloping triangular side members A<1>, A<2> being provided, at the rear sloping edge, with directional scoops D<1>, D<2> which receive and deflect the snow riding over the front face A. A further scoop D, Fig. 2, may also be mounted on either of the sloping edges of the face A and coacts with scoop D<1> or D<2> to deflect the snow to one side of the machine. The lower edge of the face A may be fitted with a number of fingers C which are individually or collectively spring-urged into contact with the ground by springs S as shown in Fig. 4. The springs are connected to a slidable bar S<1> operated by a screw-threaded rod S<5> whereby the tension of the springs can be adjusted. The fingers can be raised simultaneously clear of the ground by a bar G carried by one arm of a two-armed pivoted lever, the other arm of which is actuated by a cam. Each tooth may be fitted with a detachable nose-piece C<1>, Fig. 8, to enable it to pass over upstanding projections on the road surface.
Patent GB-808396-A (GB)
Title: Improvements in or relating to carrier wave modulators and demodulators
Inventor: WILLIS JOHN GORDON
IPC: H04L27/233
Filed: 1956-11-08
Abstract: 808,396. Amplitude modulation systems; detecting circuits. STANDARD TELEPHONES & CABLES Ltd. Nov. 8, 1956, No. 34117/56. Class 40 (5). A balanced modulator or a demodulator employing a carrier for demodulation comprises one or more symmetrical transistors as switching elements. Modulation may be applied in pushpull to the interchangeable collector and emitter of each of a pair of symmetrical transistors 1, 2, to the bases of which carrier from a transformer 22 is applied so that the transistors are alternately blocked and rendered conductive and modulation flows during one half-cycle of the carrier through the series aiding upper and lower halves of centre-tapped windings 18, 19 of an output transformer 17 and during the other half-cycle through the series aiding other halves. The carrier thus interrupts and reverses at carrier frequency the output at terminals 15, 16, i.e. gives a modulated carrier output with suppressed carrier. One sideband may be removed by filtering. Positive bias on the transistor bases to give a squared carrier input may be developed by a resistor 24 with a shunt capacitor 25. Resistors 9, 10 across the emitters and collectors facilitate impedance matching between the modulation input and output of the modulator. In a modification (Fig. 2, not shown), the centre tap of the secondary winding 14 is not connected to earth, but centre taps of resistors 9, 10 are earthed. In a further modification transistor 1 and the upper and lower halves of windings 18, 19 are omitted. In a still further modification (Fig. 4) the primary of the output transformer is connected across the emitter and collector of a single symmetrical transistor 2 so that it alternately short-circuits the output. In all cases the terminals 15, 16 may instead be the modulation input and 11, 12 the output terminals.
Patent GB-1127891-A (GB)
Title: Improvements in or relating to washing machines
IPC: D06F34/08
Filed: 1965-08-10
Abstract: 1,127,891. Transistor switching circuits. PHILIPS' GLOEILAMPENFABRIEKENN.V 10 Aug., 1965 [13 Aug., 1964], No. 34187/65. Heading H3T. [Also in Division D1] The cycle of a washing machine is controlled by transistor switching stages each controlling an action and having electro-optical couplings such that as one action is completed the following action is initiated. When switch 18 is momentarily pressed, water supply relay 6 is energized by circuit 1 (detailed in Fig. 2, not shown) and light source 12 illuminates photosensitive resistor 22 whose resistance drops to maintain the voltage at terminal 42 when switch 18 opens. When the water in tub 10 reaches level 83, terminal 41 is connected to the negative terminal of source 39 to change the state at circuit 1. Relay 6 and lamp 12 are de-energized and diode 29 becomes non-conducting to change over circuit 2 (detailed in Fig. 3, not shown). Heater relay 7 is thus switched on and lamp 13 illuminates resistor 22 whose resistance drops and maintains the supply to terminals 42, 50, the gap between 12 going off and 13 on being bridged by capacitor 35. A thermistor 70 warms up with the water and when the desired temperature is reached its resistance is such that it restores circuit 2, thus de-energizing heater relay 7 and lamp 13. The latter sets photo-resistor 33 to its high resistance state, allowing capacitor 36 to discharge and time the washing cycle. When discharged it restores circuit 3 (detailed in Fig. 4, not shown), extinguishing lamp 14. This returns photoresistors 24 and 34 to their high resistance state to release the washing relay 8 and to change over circuit 4 (detailed in Fig. 5, not shown). Relay 9 of circuit 4 starts a pump which is energized until contact 85 ceases to be immersed and terminal 62 is thus no longer connected to the voltage supply. Rinsing takes place under the control of circuits 4 and 5 as described in Specification 1,127,892, in which it is explained that restoration of circuit 4 produces a pulse of light from lamp 16, which, acting on photoresistor 27 of circuit 1 causes the rinsing operation to recycle and that after a timing period determined by discharge of a capacitor 38 the circuit 5 extinguishes a lamp 17 which returns photo-resistor 26 of circuit 1 to its high resistance state and terminates recycling.