baber/WOPTO huggingface dataset:
Patent GB-925519-A (GB)
Title: Improvements in or relating to vacuum-operated clutches
IPC: F16D48/04
Filed: 1960-12-15
Abstract: 925,519. Clutch control. REGIE NATIUNALE DES USINES RENAULT. Dec. 15, 1960 [Dec. 17, 1959; Feb. 17, 1960], No. 43280/60. Class 80 (2). In a disc clutch of the type in which levers 8 hold a pressure plate 5 disengaged against loading springs 6 by placing a chamber 20 of a diaphragm servomotor in communication with a vacuum source 26, engagement being effected by a control valve 23 to allow passage of air from a chamber 29 to the servomotor, the admission of air is carried out in three stages, first at a rapid rate until clutch engagement commences, then at a restricted rate while the discs move into driving engagement, and finally again at a rapid rate to limit the period of slip. In the arrangement shown chamber 29 houses a valve 36 loaded by a spring 37 and controlling an air entry port 35, and a diaphragm 43 and perforated disc 38 loaded by a second spring 44 and attached to a central spindle 40. A pipe connection 28 from chamber 29 has a calibrated orifice 46. Upon operating control valve 23 the air valve 36 lifts against spring 37 for free entry of air through port 35 until the rise of pressure to a first predetermined value, for initial clutch engagement, closes valve 36, after which air can only enter slowly through orifice 46. When the pressure rises to a second predetermined value spring 44 lifts members 38, 43, 40 so that sleeve 41 lifts valve 36 and air again enters freely through port 35. Modified forms of air control valve are described, Figs. 4 and 5 (not shown).
Patent GB-1013561-A (GB)
Title: Apparatus and method for vacuum distillation
IPC: C02F1/04
Filed: 1961-12-05
Abstract: 1,013,561. Vacuum distillation apparatus; purification of water. ATLAS A/S. Dec. 5, 1961 [Dec. 5, 1960], No. 43422/61. Heading B1B. Liquid, e.g. water, is distilled in an apparatus comprising an evaporator 10 provided with tubes 13 surrounded by a heating medium so that, in operation, boiling liquid rises through the tubes from the lower chamber 14 to the upper chamber 15; unevaporated liquid entrained into the upper chamber flows into conduit 16 and is, wholly or in part, withdrawn through conduit 26 by ejector-pump 29 which also maintains the apparatus under vacuum by means of conduit 21 connecting the ejectorpump to condensor 17. Water is introduced into the system by pump 23, and part of it flows through conduit 22 into evaporator chamber 24, while the remainder actuates ejector-pump 29. Conduit 22 may be replaced by a conduit 32 extending from the outlet side of the ejector to chamber 14. Part of the water flowing into conduit 16 may be returned to chamber 14. The tubes 13 may be heated by the water from the cooling-jacket of an internal combustion engine.
Patent GB-1395161-A (GB)
Title: Photographic silver halide development
IPC: C07D209/08
Filed: 1971-09-17
Abstract: 1395161 Photographic silver halide development AGFA-GEVAERT 15 Sept 1972 [17 Sept 1971] 43518/71 Heading G2C [Also in Division C2] An exposed photographic element comprising a support and at least one photographic silver halide emulsion is developed at above 30C in the presence of at least one nitrile compound selected from: (a) benzene compounds carrying at least two CN groups on the benzene nucleus, (b) #-deficient heterocycles carrying at least one CN group on the heterocyclic nucleus and (c) compounds of the formula:- NC-C(R 1 )=CHR 2  where R 1  is CN or a #-deficient heterocycle; and R2 is optionally substituted aryl or heterocyclyl. The nitrile compound is preferably present in the silver halide emulsion, but may be present in a gelatine anti-stress layer, intermediate layer or filter layer. 16 specific nitrile compounds are disclosed. The silver halide emulsion may contain 5-methyl-7-hydroxy-5-triazolo [1, 5-a] pyrimidine and mercury cyanide (see Examples). The nitrile compounds have a favourable effect on fog and/or speed and/or gradation.
Patent GB-919626-A (GB)
Title: A device for the acceleration of a carriage or slide when said carriage or slide begins to move
IPC: B23D25/04
Filed: 1960-12-19
Abstract: 919,626. Shearing. HUNTER DOUGLAS INTERNATIONAL CORPORATION. Dec. 19, 1960 [Dec. 23, 1959], No. 43627/60. Class 83 (4). A flying shears 1 is accelerated to the speed of the strip &c. 16 to be severed by contact between the end of the strip and an abutment 24 on a rod 12 which is connected by a bellcrank lever 7, 8 to the shears, arm 8 of the lever being connected to the rod 12 and arm 7 carrying a roll 10 which runs on the surface 11 of a fixed guide 6 as the lever turns about its pivot 9 on the shears. Wheels 2-4 may support the shears on a rail 5, and the rod 12 is in two parts 19, 22 connected by a pivot 21, part 22 conveying the abutment 24 and being. guided by rolls 23 and part 19 being connected to the arm 8. A switch 25 operated by the abutment controls a pneumatic device 18 operating the shears.
Patent GB-1490712-A (GB)
Title: Method for the production of fertilizer materials
IPC: C01F11/46
Filed: 1974-10-10
Abstract: 1490712 Phosphoric acid; fertilizers VEBACHEMIE AG 10 Oct 1974 [11 Oct 1973 15 March 1974] 43958/74 Heading ClA Phosphoric acid suitable for the preparation of high grade fertilizers is prepared by (1) decomposing rock phosphate with HNU 3 , and optionally H 2 SO 4 , wherein the mole ratios H<SP>+</SP> : P 2 O 5 =7 to 17 : 1 and H 2 SO 4 : HNO 3 = 8 to 0 : 1; if H 2 SO 4  is present the reaction temperature is 60-110‹ C., while if H 2 SO 4  is absent, the reaction temperature is 60-100‹ C. and the concentration of HNO 3  is 35-60% by weight, (2) if necessary, introducing sufficient additional SO 4 <SP>-</SP> ions so that, after precipitation of all the Ca<SP>++</SP> ions in the reaction mixture as CaSO 4 .¢H 2 O, the reaction mixture contains 10-150 g. SO 4 - ions in solution, (3) adjusting the water content of the reaction mixture so that the waste content of the resultant nitrogenous phosphonic acid product is 20-55% by weight, optionally by recycling water from step (5), (4) separating the CaSO 4 .¢H 2 O from the liquid phase, (5) washing the CaSO 4 .¢H 2 O with water, the washings optionally being recycled to step (3), and (6) recovering the liquid phase from step (4).
Patent GB-1222568-A (GB)
Title: Room temperature curing organopolysiloxane elastomers
IPC: C08K5/57
Filed: 1968-09-17
Abstract: 1,222,568. Organopolysiloxane elastomers. STAUFFER-WACKER SILICONE CORP. 17 Sept., 1968 [18 Oct., 1967], No. 44116/68. Heading C3T. A composition, curable at room temperature to an elastomer when exposed to atmospheric moisture, comprises an organopolysiloxane and an organotin compound in which X is H or R<SP>a</SP> and R<SP>b</SP> 2  are independently monovalent, optionally halogenated hydrocarbon radicals or cyanoalkyl radicals. Z is a radical hydrolysable by ambient moisture, e.g. monoacyl, carbonoxy, amino-oxy or oximino; n is 2, 3 or 4 and x = 1-20,000. Y and Y<SP>1</SP> are independently hydrocarbon, OH, halogen, OOCR<SP>11</SP> or OR. R, R<SP>1</SP> and R<SP>11</SP> are independently C 1-18  optionally halogenated hydrocarbon radicals. The organo. tin compounds may be used in conjunction with another curing agent selected from (a) polyalkoxysilanes (R<SP>111</SP>O) z Si(R<SP>1111</SP>) 4-z  in which R<SP>111</SP> is a C 1-7  monovalent hydrocarbon radical and R<SP>1111</SP> is a C 1-7  optionally halogenated monovalent hydrocarbon radical; (b) polyalkoxysiloxanes in which the Si atoms are linked by Si-O-Si linkages and the remaining silicon valencies are satisfied by R<SP>111</SP>O and/or R<SP>1111</SP> radicals; and (c) polymers derived from monomers (a). Examples of suitable organotin compounds are bis (dibutyl tin laurate) oxide, bis (diamyl tin) oxide and (C 4 H 9 ) 2 Sn(OH)Cl.
Patent GB-1429541-A (GB)
Title: Full-wave rectifier circuits
IPC: H04B1/16
Filed: 1973-09-20
Abstract: 1429541 Colour television HITACHI Ltd 20 Sept 1973 [4 Oct 1972] 44274/73 Heading H4F A resistor matrix M receives two signals A and B and their complements A and B at points 1, 3, 5 and 7 and provides at outputs 2, 4, 6 and 8 the signals (A + B), A + B, (A + B) and (A+B); the signals (A + B) and (A + B) (or (A + B) and (A+B)) are fed to one side of a differential amplifier including transistors Q1, Q2, Q3, which provides an output which is effectively the signal (A + B) (or (A + B)) rectified with respect to a reference voltage VR; this output is then amplified by transistor Q4 and smoothed by capacitor C. When the signal fed to the base of transistor Q1 or Q2 exceeds reference voltage VR that transistor is turned "on", thus turning transistor Q3 "on" and providing an output. In an alternative embodiment (Fig. 3, not shown) capacitor C and transistor Q2 are omitted, the signals from the matrix being connected to the base of transistor Q1 via respective diodes. The circuit may be used to demodulate a colour television signal.
Patent GB-876615-A (GB)
Title: Improvements relating to machines for inducing flow of fluid, for example fans and pumps
IPC: F04D17/04
Filed: 1957-07-02
Abstract: 876,615. Transverse-flow fans and pumps. FIRTH CLEVELAND Ltd. July 2, 1957 [Dec. 7, 1956 (3)], No. 44295/60. Divided out of 876,611. Class 110 (1). In a flow machine for inducing movement of a liquid or gas, of the kind comprising a cylindrical bladed rotor and means to guide fluid at least twice through the blades of the rotor in a direction transverse to the rotor axis, the guide means include a smooth concave wall within the rotor and held against rotation therewith, the wall extending the length of the rotor and between angularly spaced lines adjacent the inner envelope of the blades whereby the wall and the inner envelope define a chamber through which fluid flows between successive traversals of the blades. The two-stage machine shown comprises a cylindrical impeller having blades (not shown) extending between the circles 5 and 6. Two flow chambers 11, 12 are formed between the impeller and the concave walls of a stationary guide member 8. External guide members 13, 14 give rise to free cylindrical vortices as described in Specification 876,611. After leaving the first stage chamber 11, the fluid passes by way of a diffuser formed by walls 31, 32; laminar guide blades 35; duct 30; and aerofoil guide blades 36 to the secondstage chamber 12. Instead of being connected in series, the two sections of the machine may have independent inlets and outlets. The central guide member may be shaped to provide three independent flow chambers instead of two, each chamber containing stationary laminar and aerofoil stationary guide blades as described in Specification 876,612. Specification 876,621 also is referred to.
Patent GB-1065637-A (GB)
Title: Parallel-to-serial converter for a binary code generator
Inventor: REEVES ALEC HARLEY
IPC: H04B14/04
Filed: 1964-10-30
Abstract: 1,065,637. Parallel to serial converters. STANDARD TELEPHONES & CABLES Ltd. Oct. 30, 1964, No. 44315/64. Heading G4H. In the recoding circuit described in Specification 1,046,792, a set of triggers (T10, T11, T12, T13, Fig. 1, not shown) is so controlled that successive bits of the recoded data are represented by the state of the triggers in corresponding successive time intervals, the states of the triggers outside the intervals being irrelevant. Each trigger 10A, 11A, 12A can either be in an " up " condition throughout its associated sampling interval or can change its condition at the middle of its sampling interval, these two possibilities corresponding to one and zero respectively, so that as shown in Fig. 2 the number 101 is represented. Two methods of converting this representation into serial form are described, namely (a) the output waveforms are combined either singly or in combination with a reference waveform and the resulting wave or waves analysed; (b) the output waveforms are re-shaped before combination with a reference waveform. Fig. 2 illustrates method (a). The waveforms are together combined with a reference waveform 13A, the resulting waveform 13B is applied to a diode-capacitor circuit to produce a waveform 13C which is differentiated 13D and shaped to produce a serial output 13E. Outline circuits employing transistors are given.
Patent GB-970963-A (GB)
Title: Ergoline ó derivatives
Filed: 1962-11-23
Abstract: The invention comprises compounds of formula <FORM:0970963/C1/1> wherein R is a hydrogen atom or a methyl group and R1 is a -CO-NR11R111 group, R11 being a hydrogen atom or an alkyl or hydroxyalkyl group having up to 4 carbon atoms and R111 being an alkyl or hydroxyalkyl group having up to 4 carbon atoms, or R11 and R111 forming together with the nitrogen atom to which they are attached a heterocyclic ring having 1 or 2 hetero-atoms, and wherein the 5- and 8-hydrogen atoms and the 8-R1 group have the b -configuration, and their preparation by transforming dihydro-D-lysergic acid II or its 1-methyl derivative into the corresponding hydrazide by treatment with hydrazine hydrate and warming, converting the hydrazide to the azide by treatment with nitrous acid, and reacting the azide dissolved in an ethereal solvent with an amine of formula HNR11R111. Amines specified are ethylamine, diethylamine; propylamine; isopropylamine; 2-propanolamine, n-butylamine; isobutylamine; pyrrolidine, piperidine, piperazine and morpholine.  The compounds of the invention have oxytocic, antienteraminic, adrenolytic, hypotensive and sedative activity and may be used in pharmaceutical compositions in combination with a therapeutically-acceptable solid or liquid diluent or carrier. Specification 964,754 is referred to.
Patent GB-1015960-A (GB)
Title: Mounting and drive means for barking apparatus
IPC: B27L1/02
Filed: 1964-11-03
Abstract: 1,015,960. Woodworking. CANADIAN INGERSOLL.RAND CO. Ltd. Nov. 3, 1964 [Nov. 4, 1963], No. 44727/64. Heading B5L. A log debarking apparatus comprises a drum rotatable about an axis, rotatable fluid-filled tyres for resiliently supporting the drum, and drive means connected to said drum or said tyres for causing rotation of the drum. The drum 10, Fig. 1 (not shown), is provided with staves 12 on its inner periphery for debarking logs which are tumbled within the drum upon rotation thereof. The outer surface of the drum is formed with flanged rings 26 which are engaged by the rotatable pneumatic tyres 14. The drive means 22 consists of a motor connected by gearing 24 to a shaft 18 for a pair of the tyres whereby the drum is rotated to debark the logs. In an alternative embodiment, the tyres serve merely to support the drum which has a gear on its outer periphery meshing with a gear driven by the motor. Two tyres may be disposed sideby-side at each support point and the surfaces of the rings and tyres may be roughened to aid traction therebetween. The wheels of the tyres may be formed with extended rims which support the drum against excessive movement in the event of a collapse of the tyre. The tyres may be filled with liquid.
Patent GB-1185416-A (GB)
Title: Frame Synchronisation in P.C.M. Systems.
Inventor: MCNEILLY JOSEPH HOOD
IPC: H04L7/027
Filed: 1968-09-20
Abstract: 1,185,416. Pulse code signalling; automatic phase control. STANDARD TELEPHONES & CABLES Ltd. 20 Sept., 1968, No. 44729/68. Headings H3A and H4L. Frame synchronization in a P.C.M. system is achieved by utilization of the fact that a frequency of half the sampling frequency is present in the unsmoothed output of a P.C.M. decoder if synchronization is lost. As shown, incoming P.C.M. signals of a single channel are supplied to a decoder 1 which is controlled by pulses from a divider 7 derived from bit-rate clock pulses supplied via OR gate 5. A filter 3 whose passband is centred about a frequency which is half the sampling frequency is connected to the output of the decoder and any output from the filter triggers a monostable device 4 so that an additional clock pulse is supplied via OR gate 5 to the divider 7, this process being repeated until synchronization is achieved. A feedback circuit via monostable 6 having a long time constant compared to the sampling rate controls an inhibit switch in the filter output after the insertion of each additional pulse to allow sufficient time for the correction to become effective before a further pulse is inserted.
Patent GB-1399128-A (GB)
Title: Hard surface polishes
IPC: C09G1/00
Filed: 1972-09-28
Abstract: 1399128 Polishes containing acrylic polymers and anti-microbial agents AMERICAN HOME PRODUCTS CORP 28 Sept 1972 [1 Oct 1971] 44770/72 Heading A5E [Also in Division C3] An aqueous polish composition particularly for floors, comprises an acrylic based water insoluble film forming polymer, a plasticiser compatible with said film forming polymer and an effective amount of an anti-microbial agent of the formula wherein R is chlorine or bromine; R' is chlorine or bromine; R<SP>2</SP> is hydrogen, chlorine or bromine; R<SP>3</SP> is hydrogen, chlorine, bromine or C 1-6  alkyl; and n is 1 or 2. The polymer may be derived from an acrylic and/or methacrylic acid and/or ester and may contain another monomer, e.g. styrene, methyl styrene, ethyl styrene or itaconic acid. Some of the examples use Zn cross-linked acrylic polymers. Suitable plasticisers include tributoxy ethyl phosphate, diacetin, diethylene glycol diacetate, tricresyl, phosphate, dibutyl phthalate, butyl phthalyl butyl glycolate, methyl phthalyl ethyl glycolate, trimethylene glycol di-2-ethyl hexoate and trimethylene glycol-di-2-ethyl butyrate. A typical anti-microbial agent is 2, 4, 4'-trichloro-2'- hydroxy-diphenylether. Optional polish components are resins (e.g. styrene-maleic acid copolymer), waxes (e.g. emulsifiable polyethylene wax), emulsifiers and leveling agents (e.g. alkanols). The polishes preferably are of pH from 7.5 to 9.5.
Patent GB-447912-A (GB)
Abstract: 447,912. Calculating-apparatus. OTANI, T., 13, Dotesanbancho Kojimachiku, Tokio. Nov. 26, 1934, No. 33995. [Class 106 (i)] In a key-set and operated machine the driving connection between the keyoperated differential member and the totalizer is normally inoperative and the totalizer pinions are held against rotation by detent means; each key when depressed is adapted to complete the driving connection and to free the detent means to permit the key action to drive the aligned totalizer pinion. In the form shown in Figs. 1, 3 and 4, each key bank has five keys, a combination of keys being depressed for certain digits. The lower ends of the key stems have ramps 10, 11, 23, 24 and 25 that co-operate with the arms of a pair of toggle levers 31, 32, 29, 30 and with projecting pins 35, 36, 37 on a parallelly movable link 34. The front arm of the toggle 29, 30 is mounted on a fixed axis while the rear arm is connected to the second toggle 31, 32, and axes 44, 45 of the rear ends of both toggles slide in slots in channel guide members 43. To the axis 44 is secured a rack member 38 guided for horizontal movement and having two sets of teeth 39, 40 arranged in different planes and co-operating with the wheels 41, 50 of an actuating gear train. Each wheel 50 is slidably mounted on a shaft 51 and can engage with the rack teeth 40 for addition or with the teeth of the wheel 41 to effect reverse rotation for subtraction. The wheel 50 is in constant mesh with a pinion 53 loose on a shaft 52 carrying other gears 54, 55 integrally connected, the gear 55 being in mesh with an idler gear 56 in mesh with the totalizer pinion 57<1>. The transmission drive is completed when a normally disengaged floating pinion 66 on a pivoted arm 65 is moved into mesh with the equal gearwheels 53, 54. This operation is effected by a cam member 60 which is rocked on the initial movement of depression of a key. The cam 60 is connected by a pair of parallel bars 62, 63 to a segment 59 and the bar 62 is lowered to rock the cam by projecting pins 12, 13, 26, 27 and 28 on the key stems. To the bar 63 is attached a connecting link 69 which cooperates with a slide 67 so arranged that when the cam 60 is rocked the slide is displaced to move the holding detent 70 to free the gear train.
Patent GB-932582-A (GB)
Title: Sterile packing of sterile substances
IPC: B65B55/04
Filed: 1961-12-15
Abstract: 932,582. Sterile packaging. ALPURA A.G. Dec. 15, 1961 [Dec. 16, 1960], No. 45091/61. Class 81 (1). [Also in Group XVII] A sterile substance, e.g. sterilized milk, is packaged in a tube 5<SP>1</SP> formed from a web 5 which is moistened by a device 26 to prevent the web from becoming brittle under the action of a heater 25. The device 26 comprises a tank and guide rollers 29, the moistening liquid being water to which a wetting agent is added. The web may be of paper coated on one side with plastics material, the overlapping edges being united by means of an electrically-heated pad 7. The milk is fed in through a pipe 21. The package is closed by two pairs of pressing jaws 10, 11 (only one pair shown), operating to compress the tube in two directions perpendicular to one another. In a modification, the moistening liquid may be led by a pipe, Fig. 3, and sprayed on the inside of the tube 5<SP>1</SP> through apertures 33 in a duct 31.
Patent GB-967029-A (GB)
Title: Evaporation process
IPC: B01D1/22
Filed: 1962-11-30
Abstract: 967,029. Concentrating aqueous solutions of potassium chloride ; distilling water. PITTSBURGH PLATE GLASS CO. Nov. 30, 1962 [Dec. 1, 1961], No. 45308/62. Heading B1B. Water is evaporated from an aqueous solution containing potassium chloride and sodium chloride by contacting the solution with a stream of sweep gas while simultaneously introducing sufficient heat into the solution to prevent any crystallization of potassium chloride from the solution. The salt solution to be evaporated enters evaporator 1 via line 2 and spray heads 3, and flows downwards as a film over the outer surfaces of heat exchanger tubes 4 into sump 5, whence it is discharged via pipe 8. A stream of air, nitrogen, stack gases or carbon dioxide is fed into the evaporator via lines 7, and flows in countercurrent contact with the descending salt solution flowing over the tubes. The humid air stream thus obtained leaves evaporator 1 via a mesh demister 25. Tubes 4 are maintained at a temperature in the range of 35-120 ‹C. by blowing hot air, or a mixture of air and steam, through the tubes. Hot brine or glycerine may also be used as a heating-medium. The sweep gas stream may be at a temperature of about 25 ‹C. Also described is a system wherein the sweep gas is passed over a film of brine flowing over a heated plate, or over the surface of the brine contained in a heated tank. The water vapour removed from the brine with the sweep gas can be recovered by cooling the gas to condense the vapour, thus producing water of high purity.