baber/WOPTO huggingface dataset:
Patent GB-275213-A (GB)
Title: Process for the manufacture of iodine substituted benzonitriles with a linkage of the phenol ether type
IPC: C07C39/24
Filed: 1927-07-16
Abstract: 275,213. Chemische Fabrik auf Actien, vorm. E. Schering. Aug. 2, 1926, [Convention date]. Iodo derivatives of cyanophenolethers having the constitution R-O-R<1>-CN, in which R and R<1> represent iodo-substituted aryl residues, are prepared by condensing iodophenolethers with metallic salts of iodo-oxybenzonitriles or metallic salts of iodophenolethers with iodobenzonitriles. The iodobenzonitrile mav be replaced by an iodonitrobenzene, and the condensation product then reduced and treated after diazotization with copper cyanide. The condensation is effected by heating to, say, 210-240 C. in the presence of copper as catalyst. The products are useful as intermediates for the manufacture of pharmaceutical preparations. Examples are given of the preparation of 4-(4<1>-methoxy-3<1>-iodophenoxy)- 3 : 5-diiodo-1-cyanobenzene by condensing 2: 4- diiodoanisol with the potassium salt of 3: 5- diiodo-4-oxybenzonitrile and by condensing the potassium salt of o-iodomethylether of hydroquinone with 3: 4: 5-triiodo-1-benzonitrile. The Specification as open to inspection under Sect. 91 (3) (a) is not restricted to copper as catalyst, and states that the iodo-oxybenzonitrile may be replaced by an iodonitro-oxybenzene and the condensation product then converted in known manner into the final product. This subject-matter does not appear in the Specification as accepted. o-Iodohydroguinone monomethylether is prepared from o-iodo-p-amino-anisol by replacement of the amino group by the hydroxyl group. 3 : 4 : 5-Triiodo-1-benzonitrile is obtained by diazotizing 3:4: 5-triiodo-aniline and substituting the cyano group for the diazo group in known manner.
Patent GB-806692-A (GB)
Title: New alkaloids
Inventor: GOUTAREL ROBERT
IPC: A61K36/00
Filed: 1955-06-30
Abstract: The invention comprises (1) the extraction of alkaloids from Voacanga sp. (especially root or trunk bark) with either a water-immiscible feebly polar or non-polar organic solvent or a polar organic solvent and/or water (with or without a strong organic or inorganic acid), the extract then being concentrated if desired and further extracted with a solvent of the other type; and (2) the three alkaloids so obtained, viz: A, C22H28O3N2; B, C42H52O5N4; C, C20H26O3N2, defined in the Specification i terms of their physical properties.  The yield of alkaloids is improved by a treatment of the plant material with aqueous or alcoholic alkali before the extraction; ammonia, lime, caustic soda, sodium carbonate and bicarbonate are suitable.  The solvent of the first type above may be diethyl or isopropyl ether, benzene, toluene, dichlorethane, chloroform, methylene chloride, trichlorethylene, methyl or ethyl acetate, or a mixture of these. The solvent of the second type may be water, methanol or ethanol, and may contain hydrochloric, sulphuric, phosphoric, acetic, formic, lactic, propionic, tartaric or citric acid or an acid salt of a polybasic acid, e.g. mono-sodium sulphate or phosphate. The alkaloids may be obtained from the extracts by adsorption on ion-exchangers or chromatography, and purified by recrystallization.  Salts may be prepared by treatment with acid in the presence of a diluent (e.g. water, benzene, methanol or ethanol) or by double decomposition. Suitable acids are hydrohalic, chloric, perchloric, sulphuric, phosphoric, formic, acetic, propionic, butyric, benzoic, tartaric, oxalic, lactic, citric, ascorbic, salicylic, methane-sulphonic, p - toluenesulphonic and camphosulphonic.  Examples are given of the extraction of alkaloids from V. obtusa and V. africana; other species that may be used are V. condiflora, V. scheinfurthii and V. tonarii. Specification 806,691 is referred to.ALSO:Pharmaceutical compositions having cardiotonic and hypertensive action contain at least one alkaloid obtained from Voacanga sp. and having the formula C22H28O3N2, C42H52O5N4 or C20H26O3N2; the three alkaloids are defined in the Specification in terms of their physical properties.  The compositions may be in the form of solutions in water or physiological serum, granules made with lactose or gum arabic, suppositories or powder.  The alkaloids may be present as salts with inorganic or organic acids, a number of which are specified. Specification 806,691, [Group IV (b)], is referred to.
Patent GB-1144034-A (GB)
Title: A miniature electric synchronous motor
Inventor: INARIBA TOKUZO
IPC: H02K21/38
Filed: 1967-04-25
Abstract: 1,144,034. Electric motors. K-K-TOKAI RIKA DENKI SEISAKUSHO. 25 April, 1967, No. 19012/67. Heading H2A. The rotor 6 of a small synchronous motor is made of low inertia for easy starting by providing it with teeth 6<SP>1</SP>, but placing the polarizing magnet 9 on the stator so that the teeth work in the space between the magnet and the field coil 3. The surface of the magnet is polarized with twice as many poles as there are rotor teeth, and these teeth are of triangular shape so that they distribute the coil-flux evenly over the surface of the magnet. When the motor is de-energized, each rotor pole-tooth lies between two magnet poles, thus facilitating instant starting at the first magnetization half-cycle. A salient pole-ring 10 facing the ends of the rotor pole-teeth, serves to reduce leakage and concentrate the fields from the magnet and field coil for more effective interaction. The magnet is of barium ferrite. The motor may be of planar form (Fig. 8, not shown).
Patent GB-425083-A (GB)
Title: Improvements in or relating to lathes
IPC: B23B3/08
Filed: 1934-06-28
Abstract: 425,083. Vertical lathes. JAGENBERG, P., Papierm³hle, near Solingen, Germany. June 28, 1934, No. 19079. Convention date, June 28, 1933. [Class 83 (iii)] A vertical lathe in which the spindle is driven below the work or the tool and simultaneously performs a rotary and a feed movement is characterized in that this feed movement takes place in a single stationary bearing. The spindle 15, which is guided in the bearing 63, Fig. 3, forming part of the machine frame, carries the work 49 at its upper end and is driven from an electric motor 1 through a clutch and brake 2 and thence by change-speed gearing 4 ... 9, belt pulleys 10, 11, and V-belt pulleys 13, 14. The driving pulley on the spindle is splined thereto to permit axial movement of the spindle. A further V-belt drive 17, 18 rotates through worm gear 20, shaft 21, change-speed gears 22, 23, clutch 29 and worm gear 25, a sleeve 26 which is screwthreaded to a non-rotatable but slidable shaft 27 which effects the axial feed of the spindle. A vertical rack 41 which moves with the lathe spindle carries at its upper end an adjustable inclined grooved plate 42 which engages with a pin on a grooved angle piece which in turn, by a wedge arrangement, effects automatic feed of the tool slide 47 enabling taper turning to be automatically performed. A tailstock 53 which slides on vertical pillars 54 is provided and has means to enable it to be pressed against the work with a greater force than that due to its own weight if necessary.
Patent GB-762036-A (GB)
Title: Improvements in apparatus for dispensing aerated waters and the like liquids
IPC: B67D1/12
Filed: 1954-06-29
Abstract: 762,036. Valves. PARR, D. C. June 27, 1955 [June 29, 1954; March 17, 1955], Nos. 19092/54 and 7859/55. Class 135. [Also in Group XVIII] A vent valve 26 for an apparatus dispensing an aerated liquid seats on a shoulder 35 in a tube 30 which communicates at 31 with the chamber 21 and which forms the stem of a valve 28 so that the valve 28 is pushed off its seat 28a only after the vent valve has been closed by depressing a button 26a. All the valves are biased by light springs.
Patent GB-697797-A (GB)
Title: Improvements in or relating to the lubrication of bearings
IPC: F16C33/66
Filed: 1950-07-31
Abstract: 697,797. Bearings. LANCASHIRE DYNAMO HOLDINGS, Ltd., and WOOSEY, E. July 25, 1951 [July 31, 1950], No. 19099/50. Class 12 (i). An annular plate 4 having a hole 11, and openings 12-15 pressed out from the plate and providing lugs 16-19, is clamped by an end cap 6 against an anti-friction bearing so that the hole 11 is at the bottom of the bearing. Oil is then put into the casing until a level 20 is reached. In operation, when the shaft is first revolved, the bearing drags the oil through the hole 11 from the right-hand side of the partition and lowers the oil level on that side. When the speed increases oil is carried by the bearing up to and through the lower opening 12 or 13, depending upon the direction of rotation. At higher speeds the opening 15 or 14 comes into use, until the extraction of oil from the bearing lowers the oil level on the left-hand side of the partition to a sufficient fraction of the starting level. The deflector blades or lugs may be bent either inwardly and upwardly or outwardly and downwardly. In a modification, a similar partition and reservoir is employed on the left-hand side of the bearing, the reservoirs being in communication with one another.
Patent GB-774196-A (GB)
Title: Improvements in and relating to medical beds
IPC: A61G7/02
Filed: 1954-06-29
Abstract: 774,196. Invalid beds. SOC. CHERIFIENNE DE MATERIEL HOSPITALIER. June 29, 1954.[June 29, 1953 ; June 19, 1954], No. 19101/54. Classes 52 (1) and 52 (2). A medical bed with central part B, a back and head rest A and leg rest, C has supported in the centre part B two juxtaposed cushions compressible and movable towards the side of the bed to expose an opening for the insertion of a bed pan. Each cushion support includes a panel 37 which supports the bedding section, pivoted to a second panel 39 pivoted to the side of frame B and carrying rollers 43 which engage tracks 44 each forming the upper part of a triangular member fixed at its lower end to a transverse bar 45 pivotally connected to a hook member 46 engaging the bar 1 of frame B and having an intermediate bar with handle 47. Bars 41 are pivoted to panels 37 and to bars 42 and when members 46 are unhooked from bars 1 and lowered and supported on bars 2 the supports move to the dotted line position so that the patient remains supported on the bedding sections which are compressed as flanges 37a move away from each other while the panels 39 hinge downwardly, a space being thus provided for a bed pan or the like, the flanges 37a protecting the bedding. Fig. 2 shows an alternative mechanism for operating the panels, links 65 pivoted to panels 39 being pivotally connected to a lever 66 fixed to a bar 62 rotatable by a crank 63. In a further modification (Fig. 4) bedding sections 71 are carried on leaf springs 72 with centre space v and overlie this space to rest on bars 73 lying longitudinally, the bars being connected to levers 76 by links 75. Sheets connected to the levers 76 and bars 73 cover the bedding and when the invalid pushes outwardly on handles 78 on the levers the sections 71 are compressed to provide a space, the parts being maintained in position by a suitable ratchet or other mechanism: The above devices may be applied to a bed (Fig. 5) having the centre frame on pivots 49 and provided with part circular tracks 50 engaged by rollers 51, mounted on leaf springs, to relieve stress on the pivots. Lateral tilting is provided by means of foot members 53 on links 54 pivoted to bell cranks 55.
Patent GB-861650-A (GB)
Title: Pressure-responsive supervisory signalling apparatus
IPC: H01H35/26
Filed: 1959-06-05
Abstract: 861,650. Fire alarm systems. AMERICAN DISTRICT TELEGRAPH CO. June 5, 1959 [Oct. 7, 1958], No. 19264/59. Class 118. [Also in Group XXI] In a dry-pipe sprinkler system (Fig. 1) (see Group XXI) the conduits 15 are kept under air pressure by means of a compressor 16 and main valve 12, the latter preventing water from the mains 11 entering the system unless the air pressure falls below a predetermined value. Increase or decrease of the air pressure in the system operates supervisory means 20 to transmit a signal. Restoration of normal pressure causes a different signal to be transmitted. A rise or fall in pressure in the supervisory pipe 21 is transmitted to bellows 22 (Fig. 2), the corresponding movement of which causes a spring-loaded bell-crank 24 to turn about its pivot 25. The spring loading of the bell-crank 24 is adjustable by means of a thumbscrew 49. Rotation of the bell-crank 24 rotates, by means of a pin 29 and slot 30, a disc 31 about its pivot 32, thus lifting a slotted link 34 or 37 in response respectively to an increase or decrease in pressure. Whichever link is raised, lever 36 is rotated clockwise about its pivot 39 and when the pressure variation reaches a predetermined amount (e.g. 10 p.s.i.) this motion, via an adjusting screw 41 and spring 42 snaps over a toggle-member 43, normally biased to rest on its lower step 45, so that it now rests on its upper stop 45. The movement of the toggle-member 43 by means of an extension arm 50 bearing two escapement pins 66 releases an escapement pawl 57 of a conventional clockwork transmitter. Simultaneously, a projection 52 on the extension arm 50 is lifted out of a notch 53 in an annular groove 54 in the face of a gear-wheel 55. The clockwork is thus released and drives a toothed code-wheel 62 which opens contacts 67 to transmit to a distant station a pre-arranged code. When the gear-wheel 55 has rotated through 120 degrees, and so driven the code-wheel 62 through two complete revolutions, the projection 52 is lifted into a further notch 64, the lower escapement pin 66 stopping the movement of the clockwork. When the air pressure in the sprinkler system is restored to normal, the spring-biassed togglemember 43 returns to its lower stop 45. This again releases the escapement pawl 57 and gearwheel 55 but the code-wheel 62 now makes one revolution only, further rotation being prevented by engagement of projection 52 with a further notch 63 in the gear-wheel 55.
Patent GB-216919-A (GB)
Title: Improved device for disinfecting closets, sinks and the like
IPC: E03D9/03
Filed: 1923-02-16
Abstract: 216,919. Fletcher, C. W. H., and Riddell, C. G. Feb. 16, 1923. Water-waste preventers, disinfecting-apparatus for. - When the flush chain N is pulled, the barrel P of a pump interposed in the chain is drawn down and disinfectant passes from a container A through a non-return valve into the pump. On release of the chain a spring W forces up the barrel and disinfectant is forced along a pipe K to the appliance to be disinfected.
Patent GB-1202124-A (GB)
Title: Process for obtaining ground products from malt for the preparation of wort used for brewing beer
IPC: C12C1/16
Filed: 1968-04-24
Abstract: 1,202,124. Husking malt. MALZFABRIK VIENENBURG G.m.b.H. and MIAG MUHLENBAU UND INDUSTRIE G.m.b.H. 24 April, 1968 [24 April, 1967], No. 19371/68. Heading A2Q. [Also in Division C6] Malt moistened with water is ground to yield particles, each below 0.2 Œ 0.05 mm. in size, and sifted to yield three meal fractions, namely: a chaff meal, an epidermal meal and an endosperm meal, the chaff being separated as the first fraction from the grit-and-meal mixture, which after grinding is subdivided into the two further fractions of which the common grain size limit is chosen to be the middle third of the two fractions reaching from minimum to maximum grain size, the three fractions being drawn off and mashed in to form wort used for brewing beer. The three meal fractions may be obtained by using roller mills 1, 3, 5 and 7 and screen-sifters 2, 4, 6 and 8 arranged in a vertical stack, the moistened malt being fed into the top of the stack, i.e. to the mill 1. The ground and sifted meals pass down the stack, in the paths indicated by the flow-lines, chaff meal being collected in the left-hand container 9, epidermal meal in the middle container 9, and fine endosperm meal in the right-hand container 9, at the bottom of the stack.
Patent GB-1307856-A (GB)
Title: Drawing template
IPC: B43L13/20
Filed: 1970-04-22
Abstract: 1307856 Templet H RIEPE and K H DITZE [trading as RIEPE-WERK] 22 April 1970 [24 April 1969 30 Oct 1969] 19378/70 Heading B6P A templet having cut-out characters 2 has the edges 3 of the cut-out characters, coloured for easy detection of the cut-out characters. The front and/or rear surface or surfaces of the templet is or are coloured in a region surrounding each aperture.
Patent GB-1480198-A (GB)
Title: Electronic switching circuit
IPC: H03K17/60
Filed: 1975-05-08
Abstract: 1480198 Switching circuits; registers INTERNATIONAL STANDARD ELECTRIC CORP 8 May 1975 [13 May 1974 3 June 1974] 19382/75 Headings H3T and H4K An electronic telephone call storage arrangement includes a plurality of identical switching circuits, each of which includes a transistor and a Zener diode, and means whereby the switches can be reset to their rest state simultaneously. In a first embodiment each switch includes a transistor, such as T1, Fig. 3, which is made to conduct, thereby applying earth potential N to a terminal F1 to which a load can be connected, by applying a negative battery potential to the terminal S1. The Zener provides protection against reverse voltages resulting, for example, from inductive loads. In a second embodiment, in which each switch once put on, stays latched on, each switch includes an SCR, such as SCR1, Fig. 6, and a protective Zener Z1. In the quiescent state a terminal M1 which functions as both the input and the output terminal, is floating. The switch is turned on by earthing terminal M1, (as by closing a switch E1, Fig. 5, not shown), causing current to flow via a resistor RF1 to charge a capacitor C1, and the direction of the current flow is such as to make the gate-cathode potential of the SCR negative. When, subsequently, earth is externally removed from the terminal M1, the capacitor C1 discharges via resistor RF1 causing current flow in the opposite direction. This makes the gate-cathode potential of the SCR positive so that the SCR fires, current passing from earth T via the SCR and resistors RD1 and R to negative battery -B, thereby again applying earth to the terminal M1. The SCR remains on until the earth supply at T is removed.
Patent GB-1394606-A (GB)
Title: Supersensitised photographic silver halide emulsions
IPC: G03C1/29
Filed: 1972-04-26
Abstract: 1394606 Supersensitized photographic silver halide emulsions ILFORD Ltd 18 April 1973 [26 April 1972] 19408/72 Heading G2C A photographic silver halide emulsion contains a sensitizing dye of the formula I:- where R 1  and R 2  are each alkyl or A-Q where A is straight or branched 1-6C alkylene and Q is amide, carboxylic acid or sulphonic acid; R 3 , R 4 , R 5  and R 6  are each H, halogen, alkyl, aryl, OH or alkoxy; R 7  is 1-4C alkyl; Y and Z are each S or Se or one is O and the other is S or Se; X<SP>#</SP> is an anion; and p is 1 or 2 or a salt thereof in supersensitizing combination with a symmetrical trimethinecyanine dye of the formula II:- where R 8  is alkyl; R 9  is alkyl, aryl, sulphoalkyl, hydroxyalkyl, carboxyalkyl, aralkyl, carboxybenzyl or -(CH 2 ) n SO 2 NH COR 10  where n is 1 to 6 and R 10  is alkyl or -(CH 2 ) n SO 2  NHR 1  1  where n is 1 to 6 and R 1  1  is alkyl or aralkyl; Q is phenyl or phenyl substituted with at least one halogon, alkyl or alkoxy substituent; X<SP>#</SP> is an anion; and p is 1 or 2 or a salt thereof. The dye of formula I may be anhydro-bis-[5,6-dimethyl-3-(3-sulphopropyl)-2-benzoselenazole] #-ethyltrimethine-cyamine hydroxide sodium salt, anhydro- [5-ethoxy-3-(3-sulphopropyl)-2-benzothiazole] (3-ethyl-5-methyl-2)benzoselenazole) #-ethyltrimethinecyanine hydroxide, or anhydro- [3-(3-sulphopropyl)-2-benzothiazole] (5- methoxy-3-methyl-2-benzoxazole) #-ethyltrimethinecyanine hydroxide and the dye of formula II may be anhydro-bis-[1-ethyl-5-phenylsulphonyl-3-(3-sulphopropyl)-2-benzimidazole] trimethinecyanine hydroxide, sodium salt.
Patent GB-599614-A (GB)
Title: Improvements in or relating to thermionic valve-holders
IPC: H01R33/76
Filed: 1944-10-09
Abstract: 599,614. Holders for discharge tubes. BRITISH MECHANICAL PRODUCTIONS, Ltd., and DEAKIN, S. T. Oct. 9, 1944, No. 19410. [Class 38 (i)] A valve-holder of the type shown comprises a cylindrical body 1 in which contacts 5 are recessed in openings 4 and are provided with sockets 7 which are carried bv the flexible stem of the contacts so that they can be deflected to accommodate variations in the location of the valve-pins. The contacts are formed from a resilient metal blank, Fig. 3, having a tag 6 and two wing pieces 9, of which the ends 10, 11 are bent to secure the. contacts at the slots 12 in the openings 4. The socket 7 for a valvepin 8 is formed by bending one end of the blank and is provided with a ramp 91 to guide the valve-pin, and ridges 13, to form linecontact surfaces. In a modification (Fig. 7), the contact comprises a blank 14 having a tag 6 and a shaped end formed with a ramp 17 and provided with a reverse bend 20 and a transverse ridge 21 which forms a line contact with a valve-pin, the reverse bend accommodating circumferential variations in the locations of the valve-pins. Preferably, the flexing movement of the contacts is limited by the surfaces 18 in the holder body to prevent the pin being inserted on the wrong side of the contact, the surfaces 18 being grooved at 19 to receive a valve-pin normally.
Patent GB-186203-A (GB)
Title: Improvements in atmospheric gas burners
IPC: F23D14/04
Filed: 1921-07-19
Abstract: 186,203. Parram, R. W., and Conway, J. K. July 19, 1921. Atmospheric gas burners.-An atmospheric gas burner comprises an upper plate F, provided with a series of conical nozzles G and secured to a flange E on a lower plate D connected to a mixing-tube A. A series of tubes H are mounted in corresponding holes in the plates F, D surrounding the mixing-tube A for supplying additional air to the centre of the flame and for drain. ing away any moisture. The nozzles G are preferably arranged in rings and may be of various sizes.
Patent GB-683600-A (GB)
Title: Elevating device for vehicles
IPC: B66F7/28
Filed: 1951-08-17
Abstract: 683,600. Load-handling machines. BAUWENS, A. Aug. 17, 1951. [Aug. 31, 1950] No. 19426/51. Class 78 (iii). In a garage lift, the vehicle is supported by four adjustable lifting pads 6 of rubber or wood which are located under rigid parts of the vehicle. Each pad is slidable along an arm 4 pivoted about a vertical axis 3 on an X-shaped member 12 which is secured to the hydraulic ram piston 1.
Patent GB-1152817-A (GB)
Title: Catalytic Oxidative Dehydrogenation of Ketones
IPC: C07D333/54
Filed: 1968-04-24
Abstract: 1,152,817. Production of unsaturated ketones. MOBIL OIL CORP. 24 April, 1968 [17 May, 1967; 11 March, 1968], No. 19430/68. Heading C2C. Unsaturated ketones are prepared by contacting a ketone reactant and a molecular oxygencontaining gas, in the vapour phase, generally at a temperature of from 400-750‹ C., with a catalyst comprising a Group I B  metal, oxide, or oxysalt, said ketone reactant having at least one pair of carbon atoms alpha and beta to the ketone carbon atom, there being at least one hydrogen atom on each of the alpha and beta carbon atoms. In the examples, cyclohexanone is converted to 2-cyclohexen-1-one with phenol as a by-product, cyclopentanone to 2-cyclopenten-1-one, 3-methylcyclohexanone to 5- methyl - 2 - cyclohexen - 1 - one and 3 - methyl- 2 - cyclohexen - 1 - one, heptan - 4 - one to 2-hepten-4-one and 2,5-heptadien-4-one, ethyl phenyl ketone to phenyl vinyl ketone, and methyl ethyl ketone to methyl vinyl ketone and 2,3-butanedione.