baber/WOPTO huggingface dataset:
Patent GB-300130-A (GB)
Filed: 1928-11-05
Abstract: 300,130. I. G. Farbenindustrie Akt.- Ges., (Assignees of Diels, 0., and Alder, K.). Nov. 5, 1927, [Convention date]. Samples furnished. Hydrocyclic compounds are produced by condensing a compound having conjugated C=C double bonds in an open chain or an hydroaromatic ring with an unsaturated aldehyde, acid or acid anhydride, or another unsaturated compound containing the group =C=C1- C1=0, other than a quinone. The condensation is effected by the double bond being opened up in the 1 : 4-position, no condensing agent being required. The doublebond compounds referred to comprise butadiene, cyclopentadiene, cyclohexadiene, myrcene, phellandrene, pyrrol and substituted pyrrols; of the unsaturated compounds, the following are mentioned :-maleic acid or anhydride, itaconic anhydride, citraconic anhydride, acrylic acid and acrolein. The products comprise terpenes, sesquiterpenes and alkaloids. According to the examples, (1) endomethylene-3 : 6-#<4> cis-tetrahydrophthalic anhydride is obtained by treating cyclopentadiene with maleic anhydride in equimolecular proportions; boiling with water gives the corresponding acid, or maleic acid may be used in the condensation; (2) cis- #<4>-tetrahydroo-phthalic anhydride results from the condensation of butadiene with maleic anhydride; the acid is obtained by boiling with water, or maleic acid may be used in the condensation; (3). #<1>,<3> dihydrobenzene is condensed with maleic anhydride ; (4) endomethylene - 3 : 6 - tetrahydro-#<4>- benzaldehyde is prepared by interaction of cyclopentadiene with acrolein; its bisulphite compound, semicarbazone and cyclohexanone condensation product are described; (5) endomethylene - 3 : 6 - tetrahydro-#<4>-benzoic acid is formed by treatment of cyclopentadiene with acrylic acid. The Specification as open to inspection under Sect. 91 (3) (a) also describes the use of furanes as double-bond compounds and of ethylideneacetone as an unsaturated compound, and refers to camphors as products. This subject-matter does not appear in the Specification as accepted. Hydrogenated organic compounds, catalytic production of. - Endomethylene - 3 : 6 - #<4>-cishexahydro-o-phthalic acid is obtained by the hydrogenation of the corresponding tetrahydro body in the presence of colloidal palladium: similarly, cis-#<4>-tetrahydro-o-phthalic acid yields the hexahydro-o-phthalic acid.
Patent GB-1073629-A (GB)
Title: Improvements in or relating to magnesium base alloys
Inventor: ZIEGLER WOLFGANG HERBERT OSKAR
IPC: C22C23/04
Filed: 1964-08-07
Abstract: A magnesium base alloy inthe wrought condition consists of:- .Mn.0.6-1.3% .Zn.1.2-2.5% the balance being magnesium.  The alloy has a composition below the curve in the drawing (not shown).  Impurities may be present as follows:- <TABS:1073629/C6-C7/1> .and.Zn.0.001-0.15% or ..Fe.0.04-0.08% may be included for grain refinement.  The alloy may be worked at 180 DEG  -530 DEG C. and may be precipitation hardened at 180 DEG C.
Patent GB-1507565-A (GB)
Title: Method and apparatus for protecting the core of a nuclear reactor
IPC: G21C9/00
Filed: 1975-08-01
Abstract: 1507565 Cooling reactors WESTING- HOUSE ELECTRIC CORP 1 Aug 1975 [1 Aug 1974] 32312/75 Heading G6C When a cooling fluid inlet pipe 41 fractures coolant backflow is reduced by flow restricting means comprising multiple parallel venturi passages 64 see also Fig. 4 (not shown) affording a resistance to coolant flow into the reactor less than in the reverse direction.
Patent GB-263496-A (GB)
Title: Improved driving mechanism for washing machines
IPC: D06F37/36
Filed: 1926-12-21
Abstract: 263,496. Scharrenbroich & Hindrichs Ges. Dec. 21, 1925, [Convention date]. Reversing-gearing for driving the cylinder shaft f of a washing-machine alternately in opposite directions comprises two coil clutches i, i<1>, Fig. 1, alternately actuated by a constantly rotating cam x, Fig. 6. Worm-wheels g, g<1> loose on the shaft f are constantly driven in opposite directions from the motor pinion b, and these carry the spring) coils i, i<1>, which encircle bosses h. h<1> fast on the shaft f. When a flanged sleeve o upon the shaft f is slid to right or left, it causes the coil which it touches to grip its boss h or h<1> and so to drive the shaft. The sleeve o is operated through a shaft p by a lever r, Fig. 6, the end r<1> of which encircles the cam rand carries rollers y, y<1> adapted to be engaged thereby. The shaft s of the cam x is driven through a worm-and-wheel u, t from the wheel g'. The cam x strikes the rollers y, y<1> alternately, and at each shift of the lever r the direction of rotation of the cylinder shaft f is reversed.
Patent GB-1504605-A (GB)
Title: Control of rotary-field machines
IPC: H02P21/00
Filed: 1975-08-01
Abstract: 1504605 Control of A.C. motors; inverting SIEMENS AG 1 Aug 1975 [3 April 1975] 32365/75 Addition to 1432268 Headings H2F and H2J In apparatus as described in parent Specification, for generating in a rotary field electrical machine an effective stator current vector which for a predetermined interval of time lies between two adjacent ones of discrete positions, the apparatus being controlled by a first signal generator for generating a first signal SZf and a second signal generator of higher frequency SZp, a comparator 8 and a changeover switch 6, 7 responsive to the instantaneous values of the first and second signals for switching the apparatus so as to produce said two discrete angular positions of the stator current vector. As described, the asynchronous motor 1 is controlled by an inverter having thyristors S1 . . . S6, diodes D1 . . . D6, and commutating capacitors C1 . . . C6. The inverter is controlled by D.C. from a rectifier GR. A voltage Un proportional to stator frequency is supplied to a threshold switch 5 which ensures that, when the stator frequency is above a predetermined value, the change over switches 4 are in the upper position so that a continuous sequence of pulses is supplied to the gates g1 . . . g6 of the thyristors S1 . . . S6. At low stator frequencies, change over switches 4 are in their lower positions and the gate pulses are sequentially changed by a set of change over switches 6 controlled by a threshold switch 7 in dependence on the sum or difference of a stator frequency sawtooth signal SZf and a higher frequency sawtooth signal SZp. This arranges that the stator vector continually oscillates about the effective position. Figs. 4, 5, 7 (not shown) relate to arrangements of integrators and threshold switches for generating the high and low-frequency sawteeth and includes two six-stage ring counters for deriving the sequential gate pulses A1 . . . A6 and B1 . . . B6, Fig. 8 show an alternative method of deriving the gate pulses by utilizing the sin and cos components of a continuously rotating preset control vector operating on threshold switches and gates. Figs. 10 . . . 12 (not shown) relate to combinations of gates and multipliers for deriving the stator frequency sawtooth voltage from the said preset control vector.
Patent GB-1321369-A (GB)
Title: Cyclohexanothiazanth-9-one derivatives method for their  preparation and compositions containing them
IPC: C07D335/16
Filed: 1971-07-09
Abstract: 1321369 Cyclohexenothiaxanthone derivatives ASTRA LAKEMEDEL AB 9 July 1971 [10 July 1970] 32390/71 Heading C2C Novel compounds of Formula I and acid addition salts thereof wherein R 1  is a diethylaminoethylamino and R 2  is tetramethylene joined to adjacent ring atoms, are prepared by reaction of diethylaminoethyl chloride on the compound R 1  = NH 2  optionally followed by salt formation. Intermediates of Formula I above wherein R 1  is amino are prepared either by hydrolysis of the acetyl-amino-compound obtained by condensation of thiosalicylic acid and the appropriate acetylaminotetralin or by reduction of the corresponding nitro compound obtained by cyclization of a compound of formula obtained by action of nitrous acid on a mixture of thiosalicylic acid and the appropriate aminonitrotetralin. Pharmaceutical compositions in conventional forms and having schistosomicidal and carcinostatic activity comprise an above novel compound and a carrier or diluent.
Patent GB-148097-A (GB)
Title: A hot-plate attachment for hot water and steam radiators
IPC: F24D19/00
Filed: 1919-12-29
Abstract: 148,097. Allensby, C. R. Dec. 29, 1919. Electric hot-plates.-A hot-plate attachment for a steam or hot-water radiator for warming food, liquids, plates, &c. comprises a hollow plate or vessel b communicating by means of a single connexion f with the interior of a radiator, and fitted with a heater j enclosed in a cover k. The vessel may be formed of two flat sheets b welded to distance-pieces c, as shown in Fig. 2, or the sides may be upturned, as shown in Fig. 3, to form a receptacle for food or liquids. An air cock g provides for the release of the enclosed air when the steam or hot water is admitted into the hot plate, and a cover may be provided.
Patent GB-681560-A (GB)
Title: Improvements in filter presses
IPC: B01D25/172
Filed: 1949-12-20
Abstract: 681,560. Filter-presses. SERVICE (ENGINEERS), Ltd., and ROWLEY, D. W. Dec. 14, 1950 [Dec. 20, 1949], No. 32572/49. Class 46 [Also in Group XXIV] The trays of a filterpress are attached to a chain composed of pivoted links and a mechanism moves along the press and engages with the links, successively opening out and closing them toggle fashion, and thereby successively opening out and closing the trays from one end of the press to the other. Trays 15, Fig. 1, are suspended by brackets 55, Figs. 1, and 4, from rollers 53 rolling on runners 54 on girders 12, the roller spindles each carrying in addition a roller pivot 51 and one end of each of two adjacent links 50, Fig. 3, of a chain. The lower end of the link at each end of the chain is suitably secured to the girders 12. The upper ends of the links 50 are joined by roller pivots 52 which are successively engaged to open out the trays by a cam 40 which is simultaneously rotated and moved along the chain. In Fig. 1, a queen tray 14 is against a stop 60 and a king tray 13 against a stop 61a, the position of which is so chosen that the cam 40 pressing down on the first pivot 52 locks the tray 13. As the cam 40 begins to rotate anti-clockwise the circular part moves off the pivot 52 releasing the locking action. A striker 40a on the cam then contacts this pivot and moves to the right after the manner shown in Fig. 3, and a shoulder 40b comes down on to the next pivot, opens the links, presses down the pivot and thus forces the king tray 13 against a stop 60a. The trays 15 are then moved in a similar way until finally the queen tray 14 is moved up to the stop 61 and locked there. The press is then tightened up by hydraulic pressure from the king tray end. A second shoulder 40b is provided on the cam 40 so that the mechanism may also operate from right to left whereby the position of Fig. 1, is regained. The cam 40 is secured to a gear 33, Fig. 4, which is rotated by a motor 31 through a reduction gearing 32 and a pinion 33a. The gear 33 acting through further gears 34, 35 and 36, Fig. 3, also rotates a pair of pinions 29 which engage with racks 25, Fig. 4, secured to the tops of the girders 12, to move the mechanism along.
Patent GB-753643-A (GB)
Title: Process of producing machine-finished mixed ferrite cores and the like
IPC: C04B35/26
Filed: 1954-11-11
Abstract: 753,643. Magnetic structures. AUTOMATIC MANUFACTURING CORPORATION. Nov. 11, 1954 [Nov. 16, 1953; Aug. 27, 1954], No. 32638/54. Drawings to Specification. Class 38 (2). Magnetic cores are made by incorporating in a ferrite forming mixture of oxides, a thermosetting resinous binder selected from phenolformaldehyde, melamine formaldehyde, urea formaldehyde and phenol-furfural, granulating the mixture and shaping it approximately into the final form, polymerizing the binder at approximately 300‹ F., machining the body to produce screw-threads or other desired contours, and then sintering at about 2000-2300‹ F. The resin is usually in the proportion of 2 to 8 per cent by weight but up to 20 per cent may be used for several machine operations. A solvent such as acetone may be used. The making of a pot core with an external screw-thread, Fig. 1 (not shown), and a magnetic ring with tapped holes through it, Fig. 2 (not shown), are described. A suitable material is a zinc nickel ferrite with 5 per cent phenol-formaldehyde resin.
Patent GB-894125-A (GB)
Title: Preparation for the combatting of nematodes
IPC: C07C333/32
Filed: 1958-10-13
Abstract: A nematocidal composition comprises one or more compounds of the general formula <FORM:0894125/VI/1> in which R indicates an alkyl, aryl or aralkyl group, together with a solid carrier material, e.g. kaolin.  Specified active ingredients are N : N1-dimethylthiuram disulphide, N : N1-diethylthiuram disulphide, N : N1-dibenzylthiuram disulphide.
Patent GB-1078005-A (GB)
Title: Improvements in or relating to fluid amplifying systems
IPC: F15B5/00
Filed: 1964-08-11
Abstract: 1,078,005. Fluid-amplifier. BOWLES ENGINEERING CORPORATION. Aug. 11, 1964 [Aug. 13, 1963 No.32714/64. Heading G3H. A fluid-amplifying system has a cylindrical vortex-amplifier chamber 16, with opposite inlets to provide for clockwise or counterclockwise rotation of fluid flowing to an outlet nozzle 21 having a pair of converging walls 21a, 21b and parallel end-walls leading to a rectangular opening which is displaced from the axis of symmetry of the chamber 16. The nozzle 21 leads to a read-out unit comprising a space 24 from which open five passages 25-29; the passages 25, 29 discharge to atmosphere and passages 33, 34 receive the nozzle output when the fluid is rotating clockwise and counterclockwise, respectively, in the chamber 16. The depth, length and breadth of the nozzle 21 must be such as to avoid fluid entering passages 25, 27 or 29 so that a given fluid signal is available in passage 33 or 34; the nozzle depth D may be 1 to 1.5 times the width W with the entrance to passages 33, 34 disposed 6 to 10 times the width of these passages downstream of the nozzle. The read-out unit may be of the boundary-layer type in which case passages 25, 27, 29 may be dispensed with. Passages 33, 34 may be connected to the control nozzles of another pure-fluid amplifier which may be one of a cascade arrangement. In a modification, one or more nozzles are formed in an output chamber of smaller diameter than and directly open to the vortex chamber; the read-out unit or units is or are mounted upon the output chamber. The nozzles may be . of round or oval form. The apparatus is not affected by acceleration forces parallel to the horizontal plane of the top plate of the vortex chamber in either of two directions at right angles to each other. One pair of read-out units are used to supply two pairs of control nozzles of an output fluid-amplifier; two pairs of read-out units may control a fluid-summing amplifier, in which case one or more outlet nozzles may be provided in the upper and lower faces of the vortex chamber when two pairs of read-out units are employed.
Patent GB-886405-A (GB)
Title: Improvements in and relating to horticultural apparatus
IPC: A01G11/00
Filed: 1958-10-14
Abstract: A fruit-ripening device comprises a shaped piece of aluminium foil or other material having at least one light-reflective surface, and means for securing the ends of the material together so as to from a frusto-cone with its light-reflective surface outermost.  In use, the frustocone is placed with the stalk of the fruit plant extending through the smaller end of the frustocone, so that ripening of the fruit borne by the plant, for example strawberries, will be aided by light reflected from the device.
Patent GB-618404-A (GB)
Title: Arrangement in yices
IPC: B25B1/24
Filed: 1946-11-04
Abstract: 618,404. Vices. NECK, C. G. Nov. 4, 1946, No. 32731. [Class 61 (ii)] A vice having a sliding jaw 4 secured in adjusted position on the shank 3 by a splitslide 6 and lever 10 with cam opening rotatable on the spaced ends of the split slide, which lever 10 has also a cam end to give a final gripping movement to the jaw 4 has the shank 3 of I or like section having maximum moment of inertia about an axis at right angles to the lever axis. Specification 578,140 is referred to.
Patent GB-712739-A (GB)
Title: Improvements in or relating to devices for supporting surfaces such as floors or ceilings under construction
IPC: E04G25/06
Filed: 1952-12-24
Abstract: 712,739. Floor and ceiling shuttering. RUTARD, S. LECLERC-. Dec. 24, 1952 [Jan. 17, 1952], No. 32770/52. Class 20 (2) Floors and ceilings under construction, e.g. cast in concrete,. are supported on a device comprising a central stem 1, 7 and radial arms, each composed of a horizontal extensible arm 19 and a strut 22. The stem part 7 carries collars 17, 24 into holes in which the ends of arms 19, 22 respectively are hooked. The stem part 7 is telscopically slidable in the part 1 by means of a rack 10 and gear wheel 5 and is he:d in position by a pin 9 adapted to be inserted in an opposed pair of series of holes 8, To allow this pin to be withdrawn when it is subject to the weight of the floor, arranged between the pin and the top of the tube 1 are pivoted jaws 12 adapted to be knocked away. The extensible arm 19 comprises an outer slidable T-section iron 27, Fig. 6, which slides between two ang'e irons 25, 26 forming the inner part of the arm. The iron 27 is formed with a wall re-engaging part 30 and is locked in position by a shackle 31 and a wedge 33.
Patent GB-1177154-A (GB)
Title: Production of 12-Aminododecanoic Acid or Alkali Metal Salts thereof
Inventor: HAWKINS EDWIN GEORGE EDWARD
IPC: C07C/
Filed: 1967-07-18
Abstract: 1,177,154. 12-Aminododecanoic acid. BP CHEMICALS (U.K.) Ltd. 8 July, 1968 [18 July, 1967], No. 32857/67. Heading C2C. 12-Aminododecanoic acid is prepared by catalytic hydrogenation of 11-cyanoindecanoic acid or its 11-carbamoylundecanoic acid, alkali metal salts. Mixtures of the cyano acid with 11-carbamoylundecanoic acid that result from the thermal decomposition of 1,1<SP>1</SP>-peroxydicyclohexylamine at 300-1000‹ C. are suitable starting materials. Preferred hydrogenation catalysts are those containing a Group VIII metal, e.g. Raney nickel, Raney cobalt, cobalt oxide admixed with phosphate, and platinum on carbon, and preferred solvents are aqueous acetic acid and (for Raney catalysts) lower alkanols, especially a mixture of n-propanol and aqueous ammonia. The hydrogenation is normally carried out at 50-60‹ C. under 60-80 atmospheres using noble metal catalysts, or at 10-200‹ C. and between 1 and 300 atmospheres with cobalt or nickel catalysts. Traces of 12,12<SP>1</SP>-imino bis-(dodecanoic acid) are formed as by-product.
Patent GB-631649-A (GB)
Title: Improvements in brake mechanism
IPC: F16C1/10
Filed: 1947-12-15
Abstract: 631,649. Variable leverage brake mechanism. FODENS, Ltd., FODEN, W., and TWEMLOW, E. Dec. 15, 1947, No. 32970. [Class 103 (i)] A brake mechanism comprising a hand lever f, an eccentric sprocket-wheel g and a chain h passing round the wheel g and connecting the lever f to the brake linkage i, is arranged so that the wheel g turns about a pivot g<SP>1</SP> to a position p as the lever f is moved, thereby altering the rate of movement of the linkage relative to the lever in order to obtain a rapid take-up of slack in the initial brake application, followed by a gradual increase of leverage as the movement continues. A ratchet mechanism m, k, j may be used to lock the lever f.
Patent GB-821345-A (GB)
Title: Improvements in or relating to the production of replacement tissue for the human body
IPC: A61F2/00
Filed: 1956-10-29
Abstract: Body parts, such as prosthetic ears, noses, cheeks, &c. are moulded from a cold-curing silicone, such as dimethyl-polysiloxane, with suitable fillers and colouring agents. Examples of suitable hardening agents are tetra-allyl silicate, tetra-ethyl silicate, disilicic hexa-allyl ester or trisilicic octaethyl ester combined with dibutylamine, di - n - hexylamine, di - n - propylamine, piperidine or tetraethyl pentamine. Fillers may be mineral oxides, glass fibres or glass powder, ebony powder, bone powder or synthetic resin materials and colouring material may be incorporated in the resin before curing or the surface may be treated with dyes dissolved in substances which adhere to the silicone material.  If desired, the part may be moulded over a support of metal, glass or synthetic resin.
Patent GB-650658-A (GB)
Title: Improvements in rotary electrical switches
IPC: H01H19/62
Filed: 1948-12-22
Abstract: 650,658. Multiposition switches. BAYS, F. Dec. 22, 1948, No. 33086. [Class 38(v)] A rotary switch comprises coplanar fixed contacts 15 and movable contacts 17 operated by cam discs 11 having a step-bystep movement on a common shaft 7, the contacts 17 being arranged on a circle concentrically with the cam discs on pivots 22 and having longitudinally adjustable means 24 for cooperation with one cam disc. Each contact 17 has a hub 17a which pivots on the stem 22 of a terminal 18 on the outside of the switch and has projections 17b for a pin 23 which carries a roller 24. Projections 17c on the hub are provided to position the roller at intermediate points along the hub so that only one disc at a time is engaged, and a spring 26 on the rod 22 biasses the contact 17 against its co-operating contact 15. In the switch shown the upper set of contacts 17, Fig. 2, are actuated by the one cam disc and the lower set by the other, the former being all opened and the latter all closed when the shaft 7 is rotated 30 degrees from the position shown. The step-by-step movement is imparted to the discs by rollers 31 on two spring-loaded levers 28 engaging the teeth of a star-wheel 27, Fig. 3 (not shown). The switch shown may control two 3-phase circuits or a motor having two exciting windings for two speeds or for two running directions. By varying the connections between the terminals inside the rear wall, the switch may be adopted for other purposes. A further application is to star-delta starters. The jacket 40 of the switch may be made dust-tight and water-proof.
Patent GB-300961-A (GB)
Title: Improvements in or relating to the decomposition of raw phosphates
IPC: C05B13/02
Filed: 1928-11-12
Abstract: 300,961. Messerschmitt, A. Nov. 21, 1927, [Convention date]. Sulphur dioxide is recovered from the gaseous products of reaction when raw phosphates, with or without the addition of basic or acid substances, are sintered with an alkali sulphate and a strong reducing agent such as carbon or iron pyrites. The amount of the latter used is sufficient only for partial reduction of the sulphate, whereby complete elimination of sulphur from the solid product is assured, particularly if the proportions of the other ingredients used are so adjusted that no free alkali or alkaline earth remains in the product. The provision of a strongly oxidizing atmosphere towards the end of the reaction is also advantageous for the removal of sulphur.
Patent GB-282067-A (GB)
Title: Improvements in electrical converting apparatus
IPC: H02K47/16
Filed: 1927-12-07
Abstract: 282,067. Compagnie Franþaise pour l'Exploitation des ProcÚdÚs Thomson-Houston. Dec. 7, 1926, [Convention date]. Void [Published under Sect. 91 of the Acts]. Addition to 281,284. Drawings to Specification. Rotary converters and transformers. - The Specification., which relates to multiple-brush continuous-current converters as described in the parent Specifications and known as " metadynes," is composed chiefly of numerical relationships connecting the current and voltages in such machines with different methods of connection between the brushes and the external circuit. The claim is for a " metadyne " constituted in accordance with the equations set forth.