baber/WOPTO huggingface dataset:
Patent GB-832293-A (GB)
Title: A process for concentrating urea solutions
IPC: C07C273/16
Filed: 1957-12-13
Abstract: Aqueous urea solutions are concentrated by bringing the aqueous urea into a chamber at a pressure of less than 200 mm. Hg and containing a liquid which is inert to and does not mix with urea and at a temperature such that the urea solution separates into water vapour which is removed and solid urea which is dispersed in the inert liquid and subsequently recovered.  The inert liquid may be a mineral oil and should have a low vapour pressure at the temperature and pressure used.  The urea may be recovered by heating to melt the urea and separating the urea layer from the inert liquid; the liquid urea may be sprayed conventionally to obtain it in granular form.  Where urea has been synthesized in a viscous inert liquid, e.g. mineral oil, the reaction mixture may be passed to the evaporating chamber and urea recovered dispersed in the viscous liquid.  Two stages may be used in series. Specification 819,030 is referred to.
Patent GB-1269945-A (GB)
Title: Improvements in or relating to phloroglucinols
Inventor: LAFON LOUIS
IPC: C07H15/203
Filed: 1968-08-14
Abstract: 1,269,945. Glucosides of phloroglucionol derivatives. ORSYMONDE. 21 July, 1969 [14 Aug., 1968], No. 38942/68. Heading C2C. Novel compounds of Formula I (in which R is C 1-4  alkyl) are prepared by reacting a compound of Formula II with acetobromoglucose in the presence of an alkali, and then saponifying the resulting acetyl derivative to obtain the monoglucoside. Pharmaceutical compositions having antispasmodic activity comprise a compound of Formula I together with a pharmaceutical carrier.
Patent GB-1512418-A (GB)
Title: Circuit arrangement for data transmission
IPC: G06F13/00
Filed: 1975-09-23
Abstract: 1512418 Data transmission KOMBINAT ZENTRONIK VEB 23 Sept 1975 [23 Sept 1974] 39044/75 Heading G4A Each data character transmitted between a centre and a magnetic storage and reproduction device is divided into a plurality of bit groups which are transmitted serially, the division being accomplished by registers, e.g. 2, 3 operable in series and in parallel, the parallel inputs and outputs, e.g. DAT A1-A8 and DAT E1-E8, of the registers being connected to the centre which operates character-by-character, and the series inputs and outputs, e.g. WS1-WS2, AS1-AS2, of the registers being connected to the magnetic storage and reproduction device which operates group-by-group, operation within a group being in parallel. As described each character comprises eight bits and is divided into four two-bit groups. Each two-bit group is processed in turn and a third (transverse parity) bit appended thereto by a circuit 13 employing odd parity, the resultant bit triad being recorded on a three-track magnetic card or tape. A plurality of characters forms a word, the start or finish of which is identified by a word mark code, as described two consecutive groups each recorded as 110. Such a word mark code is followed in the third group of the respective character by a three-bit longitudinal parity check group (one bit for each of the three tracks of the recording medium), and in the fourth group of the respective character by a blind triad, as described 111. Shifting of the contents of the registers 2, 3, both for storage and read-out, is controlled by a timing signal TS formed in a clock generator (4), Fig. 2 (not shown), control of the four steps needed for processing of a four-group character being achieved via a four-stage ring counter (7), Fig. 3 (not shown). The recoding process is generally conventional, the invention appearing to be more particularly directed to alleviation of the timing problems involved in the reproduction process. To this end, when data is to be transferred from the magnetic storage and reproduction device to the centre, a control signal emitted by the centre causes formation of a return control signal by the device, reception of the return control signal by the centre then terminating the initial control signal, the time-slot defined by the time between return control signal formation and initial control signal termination being used for reception of a group by the centre. Such an arrangement is stated to resolve the difficulty caused by skew of the magnetic recording medium, wherein consecutive triads read from the magnetic recording medium may be separated in time by less than the above time-slot, by not transmitting a triad to the centre until the preceding triad has been successfully accepted by the centre. Circuitry for the formation, recording and recognition of word mark codes, and for checking for word mark errors and transverse and longitudinal parity errors, is described.
Patent GB-900534-A (GB)
Title: Electric switches for electric heating devices, such as cushions
IPC: H01H19/14
Filed: 1958-12-04
Abstract: 900,534. Mechanical switches, without quick action; switch covers. BUSCH-JAEGER DURENER METALLWERKE A.G. Dec. 4, 1958 [Dec. 6, 1957], No. 39144/58. Class 38 (5). A multi-position switch, e.g. for electricallyheated cushions has a rotatable cover 1 carrying, or integral with, a cylindrical portion 1a having a series of arcuate contacts 1c cooperating with fixed contacts 6. The switching positions are established by a spring 5 pressing together suitably profiled complementary surfaces of the cover and base.
Patent GB-1222259-A (GB)
Title: Rotary supports and associated vibration dampers for fast spinning rotors
Inventor: LAGERWEY JOHANNES
IPC: F16F15/04
Filed: 1968-08-15
Abstract: 1,222,259. Springs; bearings. REACTOR CENTRUM NEDERLAND. 15 Aug., 1968 [25 Aug., 1967], No. 39160/68. Headings F2A and F2S. A combined rotary support and vibration damper, for damping " whirl" and mass-spring resonance of a rotating member 1, comprises a bearing 12, Fig. 1, which is mounted on a leaf spring 13, the latter having one end attached to a stationary member 14, and a damping member 4 which is supported by springs 9 anda diaphragm 7 in a container 3, the diaphragm also serving to retain damping liquid in the container 3. The bearing 12, having a cupshaped socket 10, receives a spherical-shaped portion 5 of an extension 6 of the damping member 4 and, due to the stiffness of the spring 13 being different in different radial directions, the bearing is movable in a non- circular path. In modifications the leaf spring 13 is replaced by a rod 15, Fig. 3, having a circular cross-section and being radially restrained by stops 16; by wires 18, 19, Fig. 6; and by horizontal members 21, 23, Fig. 8.
Patent GB-1473157-A (GB)
IPC: B62D61/08
Filed: 1974-09-09
Abstract: 1473157 Vehicle steering SHIKOKU KENKI KK 9 Sept 1974 [7 May 1974] 39218/74 Heading B7H A vehicle capable of being turned within its own length comprises a platform stably supported by three wheels A, B, C each being rotatably mounted on a wheel fork 1, 1<SP>1</SP>. Each fork is attached to a vertical axle 2 which is rotatable by means of hydraulic ram actuated rack and pinion mechanisms 3, 4, 3<SP>1</SP>, 4<SP>1</SP>. Wheels A and C have associated therewith independent hydraulic drive motors F and D which are carried by the forks 1<SP>1</SP>, 1, respectively. The wheels can be positioned as illustrated in Figs. 1 and 3, or for sideways travel (Fig. 4, not shown).
Patent GB-1394979-A (GB)
Title: Preparation of aromatics
IPC: C07C2/00
Filed: 1973-08-20
Abstract: 1394979 Aromatization of C 2 -C 4  hydrocarbons MOBIL OIL CORP 20 Aug 1973 39220/73 Heading C5E Aromatic hydrocarbons are produced by contacting C 2 -C 4  paraffins, olefins or mixtures thereof with a crystalline aluminosilicate zeolite (i) having a SiO 2  : Al 2 O 3  ratio greater than 15; (ii) crystallized from a solution containing organic cations so that it contains organic cations as synthesized; and (iii) having a pore size such that it sorts methyl paraffins under the conditions employed which comprise (a) 100- 700‹ C.; (b) 0-1000 psig.; (c) 0À5-400 WHSV and (d) a H 2 /hydrocarbon ratio of 0-20. Preferably the reaction is carried out at 300‹- 650‹ C. and atmospheric pressure in the absence of added H 2 . Suitable zeolites are ZSM.5, 8 or 11, zeolite #, ZSM. 12 or mordenite synthesized from a reaction mixture containing Et 4 N<SP>+</SP> cations. A group II, VIB, VIIB or VIII hydrogenating/dehydrogenating component may be present in the catalyst composition. Examples describe the aromatization of propylene using a H.ZSM.5/Al 2 O 3  composition and a NH 4  and Zn exchanged ZSM.5.
Patent GB-1009656-A (GB)
Title: Blank cartridges for artillery and method of producing the same
IPC: F42B8/04
Filed: 1963-10-04
Abstract: 1,009,656. Practice cartridges and plugs therefore. RHEINMETALL G.m.b.H. Oct. 4, 1963 [Oct. 4, 1962], No. 39236/63. Heading F3A. A blank cartridge comprises a case containing a powder charge and a plug closing the case, the plug comprising a hardened mixture of an epoxy resin, a hardening agent for the resin, which effects hardening without the application of heat, and a filler, the filler being a comminuted vulcanized rubber selected from the group consisting of natural and synthetic rubbers which contain fibrous material. The filler may be a " meal " comprising comminuted motor vehicle tyres and the epoxy resin may be prepared by a reaction between a polyvalent phenol and epichlorohydrin or by a reaction between a salt of a polybasic aromatic carboxylic acid and epichlorohydrin. In an example, 200 grams of epoxy resin were mixed with 100 grams of a polyamide before the addition of 700 grams of the comminuted rubber. 600 grams of nitrocellulose were placed in a cartridge case of 10À5 cm. calibre and covered with a cardboard disc before introducing 300 grams of the mixture, which was pressed to form a plug and allowed to harden in situ.
Patent GB-351919-A (GB)
Title: Spring suspension, especially for motor vehicles
IPC: B62K25/12
Filed: 1929-12-24
Abstract: 351,919. Cycle forks; handle-bars. HECKER, H., 24, Imhoffstrasse, Nuremberg, Germany. Dec. 24, 1929, No. 39427. Convention date, Dec. 24, 1928. Void [Published under Sect. 91 of the Acts]. [Class 136 (iii).] Springs adapted to resist bending and shaped to form handle-bars or front forks of motor and other cycles consist of one or more bars wrapped helically with one or more thin bars or wires. The ends of the helical wrapping members are joined together by welding or soldering or by a ferrule forced on to the end of the spring.
Patent GB-1319524-A (GB)
Title: Manufacture of rolls
IPC: B23K9/00
Filed: 1970-08-19
Abstract: 1319524 Electro-erosion; making rolls; rolling tubes INDUSTRIAL TOOL ENGINEERING CO 19 Aug 1970 [18 Sept 1969] 39942/70 Headings B3A B3M and B3V In an apparatus for electro-eroding a groove in a rotating roll 11, by linearly moving an electrode, the electrode is driven through a variable ratio gear transmission 75 interconnected with the roll support 56a by shafts 76, 78 connected to a parrallel displacement coupling 77 which permits relative movement between the electrode and roll axes to allow machining of different diameter rolls. A tapered electrode (Fig. 8, not shown) is supported between upper and lower centres 36, 37, Fig. 3. To accommodate different size electrodes the upper centre 36 is movable by an electric motor 40 or hand wheel 39 and the lower centre 37 movable by a hand wheel 52 or hydraulic cylinder and piston 42. A pair of rolls is supported on shafts 56, 56a, Fig. 4, the shaft 56a being driven from the shaft 56 via gears 57-60. A cone of gears 79-83 is rotated by the shaft 56a one of which cone gears engages a coupling gear 85 which rotates a splined shaft 86 having a gear 88 at one end for moving a rack gear 89. Movement of the rack gear 89 causes the electrode to be vertically moved between the rolls so as to form a tapered groove in the rolls. The coupling gear 85 can be moved into engagement with any one of the gears 79-83 so as to change the ratio between the angular speed of the rolls and the linear speed of the electrode by moving it transversely by an hydraulic motor 92 and longitudinally by moving a sleeve 94 along the splined shaft 86 by turning a pinion 96. The roll mounting shafts 56, 56a are mounted in bearing blocks 20, 21, Fig. 6, which can be moved laterally to accommodate different size rolls by piston and cylinder assemblies 26, 27. The gears 58, 59 are mounted on a bracket (67) (Fig. 2, not shown) and coupled to the gears 57, 60 by linkage (61, 62) so that when the bracket (67) is moved vertically by a motor 72, the gears 57, 60 will be moved laterally so as to accomodate the lateral movement of the rolls. After forming the grooves in the rolls, relief portions (115) (Fig. 11, not shown) are formed in the grooves by using an oversize electrode and moving the rolls towards the electrode by the piston and cylinder assemblies 26, 27 under the control of a valve 130 having a roller 131 riding on the surface of a cam 126 fixed to the rack 89. The semicylindrical roll (Fig. 9, not shown) is used for rolling tubes and has a tapered groove with relief pockets (112).
Patent GB-1528340-A (GB)
Title: Circular magnetic domain devices
IPC: G11C19/08
Filed: 1975-04-15
Abstract: 1528340 Magnetic bubble devices PLESSEY CO Ltd 15 April 1975 40102/76 Heading H3B In a magnetic bubble device having a bubblesupporting layer 1 subject to a bias field produced by magnets 6 and an in-plane rotating field produced by two orthogonal pairs of coils (not shown) of which one pair generates a unipolar field starting and stopping at zero, at least one high permeability, low hysteresis alloy member 9 shunts the magnets 6 so as to produce a net bias field at an angle # to the normal ZZ to the layer 1 so as to have a component opposite the direction of the unipolar field to stabilize domains under a propagation overlay when the rotating field stops and starts. The angle # and the relative position of magnets 6 and shunts 9 are varied to adjust the field components. The shunts may be L-shaped (Fig. 6, not shown).
Patent GB-1481264-A (GB)
Title: Cooling of recovered sand for casting purposes
IPC: B22C5/08
Filed: 1975-10-01
Abstract: 1481264 Cooling granular material ALFRED GUTMANN GES FUR MASCHINENBAU 1 Oct 1975 [2 Oct 1974] 40188/75 Heading F4U Casting sand is cooled in a bunker 2 divided into discrete cooling compartments, each compartment being provided with a heat exchanger 7 and with inlet and outlet gates 5, 11 which are individually controllable. As shown, each compartment is connected through the gates to a receiving chamber 14 and to a discharge chamber 13, and the gates are controlled by fluid-pressure rams 6, 12 which are connected to a control system, the arrangement being such that the sand is stationary in each compartment during a cooling cycle and the flow into and out of the compartments is such as to provide a substantially continuous discharge from the bunker. All of the heat exchangers are connected to common supply and discharge pipes 8, 9 for cooling water which may be connected to a closed circuit system.
Patent GB-1022298-A (GB)
Title: Contact locking connector
IPC: H01R12/72
Filed: 1964-10-02
Abstract: 1,022,298. Two-part couplings. BURNDY CORPORATION. Oct. 2, 1964 [Oct. 8, 1963], No. 40191/64. Heading H2E. An edge connector for a printed circuit board comprises an insulating housing member 10 having a longitudinal slot 14, a plurality of spaced-apart contact receiving slots 18 extending through the housing and transversely intersecting slot 14, and an opening 20 also extending longitudinally of the body to house a locking member 22 which locks a plurality of resilient contacts in the contact receiving slots. Each contact has a projection 36 which extends into opening 20 and engages in a groove 44 in the locking member when it is inserted. Housing 10 has holes 60 through which bolts pass to mount it on other electrical apparatus. These bolts may also pass through corresponding holes in locking member 22 to hold it in opening 20.
Patent GB-1012898-A (GB)
Title: Improvements in or relating to heat exchangers
IPC: F28F1/12
Filed: 1964-10-02
Abstract: 1,012,898. Tube heat exchangers. HUTOGEPGYAR. Oct. 2, 1964 [Oct. 4, 1963], No. 40328/64. Heading F4S. In a heat exchanger, each tube for one of the heat-exchange media has a cross-sectional shape, part 14 of which tapers towards the longitudinal axis of the tube, and secondary heatexchange surfaces 11 each having a portion 15 which is wrapped around an appropriate tapered portion of a tube so as to embrace tightly not more than half the periphery of the tube. Figs. 4 and 6 show typical embodiments. Fig. 3 (not shown) shows a tube such as that in Fig. 6 to which only one of the surfaces 11 has been attached. Fig. 7 shows an arrangement of tubes wherein each secondary heat-exchange surface 11 has two portions 15 respectively wrapped around parts 14 of two neighbouring tubes.
Patent GB-932168-A (GB)
Title: Method for the production of tungsten and molybdenum
IPC: C22B34/30
Filed: 1960-11-24
Abstract: A tungsten oxide and/or ammonium paratungstate or a molybdenum oxide and/or ammonium paramolybdate mixed with zinc is heated to 750 DEG -850 DEG C. in a non-oxidizing atmosphere such as hydrogen, nitrogen or coal-gas to give zinc oxide and metallic tungsten or molybdenum.ALSO:A method for producing tungsten or molybdenum comprises mixing a tungsten oxide and/or ammonium paratungstate, or a molybdenum oxide and/or ammonium para-molybdate with zinc and heating the mixture to 750-850 DEG  C. in a non-oxidizing atmosphere such as hydrogen, nitrogen or coal-gas.  The zinc oxide may be recovered by treating it with HCl or H2SO4 to give zinc chloride or sulphate or it may be treated with hydrogen to give zinc, which may be reused, and water vapour.  The hydrogen reduction may be carried out instantaneously so that less than the stoichiometric quantity of zinc may be used.  A rotary kiln may be used having zones at 400 DEG , 800 DEG  and 950 DEG  C., the ores being passed 400 DEG  --> 800 DEG  --> 950 DEG  and the hydrogen in the opposite direction.
Patent GB-1324525-A (GB)
Title: Phosphonic acid esters having free hydroxyl groups
IPC: C08G18/00
Filed: 1970-08-21
Abstract: 1324525 Esters of 3,5,5-trimethyl-cyclohexan- 1-on-3-yl phosphonic acid UPJOHN CO 21 Aug 1970 [1 Oct 1969] 40459/70 Heading C2P The invention comprises compounds of the general formula  wherein A and B are selected from C 2 -C 8  hydroxyalkyl, C 6 -C 12  hydroxyaryl, and a group (R-O) n H wherein R is C 2 -C 12  alkylene there being at least two carbon atoms separating the chain oxygen atoms and n is an integer from 2 to 20. The compounds are prepared from 3,5,5- trimethyl cyclohexan - 1 - on - 3 - yl phosphonic acid (II), or dialkyl esters thereof, thus compounds in which A is (R-O) n H and B is hydroxyalkyl or (R-O) n H are obtained by reacting II with an appropriate amount of the corresponding alkylene oxide in the presence of an inert organic solvent. Two or more alkylene oxides may also be used either simultaneously or sequentially and in some cases a catalyst may be added, suitable catalysts being tertiary amines, alkali metals and alkali metal hydroxides and -alkoxides. Products in which A and B are selected from C 4 -C 8  hydroxyalkyl and the group (R-O) n H where n is 2 are obtained by transesterifying a dialkyl ester of II with the appropriate glycol and products in which A and B are hydroxyaryl are obtained by transesterifying a dialkyl ester of II with an appropriate dihydroxy aryl compound. The transesterification may be effected in the presence of an inert solvent with removal of the monohydric alcohol as it is formed and metallic sodium may also be added as catalyst. The products are useful as flame-retarding components of polymer systems, e.g. polyurethane and polyamide foam systems. 3,5,5 - Trimethylcyclohexan - 1 - on - 1 - yl phosphonic acid is obtained by hydrolysing its diethyl ester with HCl, a detailed example being given.
Patent GB-995398-A (GB)
Title: Novel hypotensive composition
IPC: C07C279/28
Filed: 1963-10-15
Abstract: Compounds of the formula <FORM:0995398/C2/1> wherein R is an hydrogen atom or an alkyl group having from 1 to 3 carbon atoms, and non-toxic acid-addition salts thereof, are prepared by the interaction of an appropriate amine with sodium dicyanimide in a lower alkanol solvent in the presence of mineral acid. Suitable solvents are iso-propanol, and n-butanol. Suitable acids are H2SO4, H3PO4. Specifications 599,713, 599,722 and 631,878 are referred to.ALSO:Pharmaceutical compositions for the control of hypertension comprise <FORM:0995398/A5-A6/1> wherein R is hydrogen or a lower alkyl group, having 1 to 3 carbon atoms, and their acid-addition salts.  The medicament is administered orally.  Specifications 599,713 and 631,878 are referred to.
Patent GB-1171233-A (GB)
Title: Organotin Sulfide Stabilizer Composition
IPC: C08K5/58
Filed: 1967-09-06
Abstract: 1,171,233. Organotin sulphides. CARLISLE CHEMICAL WORKS Inc. 6 Sept., 1967 [20 Sept., 1966], No. 40770/67. Heading C2J. [Also in Division C3] Poly-(dibutyl tin sulphide) was prepared by reacting dibutyl tin dichloride with sodium sulphide. The product is believed to be a cyclic trimer [(C 4 H 9 ) 2 SnS] 3 . Poly-(monobutyl tin sulphide) is similarly prepared from monobutyl tin trichloride and has the formula [(C 4 H 9 Sn) 4 S 6 ] n .
Patent GB-1521359-A (GB)
Title: Devices for transmitting electrical signals in regions having an explosion risk
IPC: G08C15/06
Filed: 1976-10-05
Abstract: 1521359 Signalling system J O JOHNSEN and A J MARSTRAND 5 Oct 1976 [8 Oct 1975] 41315/76 Heading H4R Signals from a "NAMUR" transducer, which is of a type which changes its current consumption in the presence of metal in an inductive field produced by the transducer, are multiplexed on to a cable which is provided with a power limiter, which limits the load in the cable to a safe value where the cable passes through a region having an explosion risk. As described the transducers are energized in time multiplex and a monitor circuit is provided which gives an alarm if the multiplexed signal deviates beyond predetermined limits.
Patent GB-975886-A (GB)
Title: Improvements in or relating to warp protectors for weaving looms
Inventor: TILLE MANFRED
IPC: D03D49/58
Filed: 1963-10-21
Abstract: 975, 886. Shuttle stop motions. WEBSTUHLBAU GROSSENHAIN VEB. Oct. 21, 1963, No. 41494/63. Heading D1E. If a shuttle 17 fails to box a feeler 1 is moved by a spring 6 to pivot a bell crank 18 so that a further bell crank 9 may pivot to rotate the stop rod 12. If the shuttle boxes the bell crank 18 is not pivoted and its nose 20 prevents pivotting of the bell crank 9.
Patent GB-1503296-A (GB)
Title: Electrical switch and component therefor
IPC: H01H35/26
Filed: 1976-10-06
Abstract: 1503296 Switch contacts EUROPE MFG TRUST REG 6 Oct 1976 [22 Nov 1975] 41507/76 Heading H1N In an electric switch having at least one fixed or movable contact 7, Fig. 2 adjustable by a screw 4, an intermediate component 15 transmits the axial movement while permitting rotation of the screw 4 and has locating means preventing relative rotation between the intermediate member 4 and the contact 7. The screw 4 has a bearing region 23 on the end of central projection 35 on which the intermediate component 15 rests at its co-operating projection 18. The upper end of the component 15 has a slot (20) Fig. 3 (not shown) for non-rotatable engagement with the contact 7. In a second embodiment in which the movable contact 8, Fig. 4, is adjustable through a spring 21 supported by the intermediate member 1 on the adjusting screw 5, the spring 21 is engaged in an end cap 3 located relative to the contact 8 and held against rotation by a tongue 29 projecting through the contact 8. Pressure is applied to the spring 8 through a projection 30 on the cap 3 substantially opposite a projection 27 of the actuator 32 which is similarly located by a tongue 28 extending through the contact 8.