baber/WOPTO huggingface dataset:
Patent GB-1396731-A (GB)
Title: Screw drive
IPC: F16H25/24
Filed: 1972-07-28
Abstract: 1396731 Screw-and-nut gearing R GARTNER 28 July 1972 [28 July 1971] 35341/72 Heading F2Q A screw arrangement for converting rotary to translational motion comprises one member having a screw-thread in engagement with a member having annular grooves, at least one of the members being rotatable and the axes of the members being parallel but laterally displaced. In Fig. 1 is shown a nut 3 rotatable through a gear 13, through which passes a spindle 1 having annular grooves 2, this being mounted for rotation on bearings 11, 12 and axially movable with respect thereto. The axes of spindle and nut are offset (Fig. 2, not shown) so that the spindle only contacts part of the nut, rotation of the nut 3 causing simultaneous rotation and axial movement of the spindle. An alternative embodiment, shown in Fig. 4 has a screw-threaded roller 16 engaging with the grooves of the spindle 15.
Patent GB-1366706-A (GB)
Title: Organic synthesis and products thereof
IPC: C07C45/67
Filed: 1971-07-28
Abstract: 1366706 Synthesis of organic compounds using polymers as intermediate supports YEDA RESEARCH & DEVELOPMENT CO Ltd 28 July 1971 [30 July 1970] 35343/71 Heading C2C [Also in Division C3] The invention comprises a process for synthesizing organic compounds wherein an organic moiety is chemically linked to a crosslinked polymeric carrier, converted into a reactive species (the concentration of said species being such as to prevent interreaction), said species is reacted with another organic compound to form the desired product, and said product is split from the supporting polymer. Specific embodiments refer to the use of a styrene/divinyl benzene copolymer which has been chloromethylated. In one case the chloromethylated polymer is reacted with a carboxylic acid preferably containing an alpha -CH 2 - group. This group is then rendered reactive by treatment with trityl lithium to produce a negative charge, and the reactive species is then acylated or alkylated with an acyl or alkyl halide. The resulting acylated or alkylated carboxylic acid is then split off the polymer support using HBr in trifluoroacetic acid. Actual examples relate to (a) reacting chloromethylated polystyrene with C 6 H 5 CH 2 COOH and acylating at the -CH 2 - (activated with trityl lithium) with p-nitrobenzoyl chloride, p-bromobenzoyl chloride or naphthoyl anhydride to produce benzyl-p-nitro phenyl ketone, benzyl-p-bromo phenyl ketone, benzyl-naphthyl methyl ketone respectively; (b) reacting the same polymer with acetic acid and similarly acylating with p-nitro benzoyl chloride to produce p-nitro acetophenone; (c) alpha alkylating similarly, polymer bound C 6 H 5 CH 2 COOH with CH 3 I and C 6 H 5 CH 2 Br, and alpha alkylating polymer bound with n-C 4 H 9 I. The second organic compound may also be attached to the polymer so that all reacting species are on the polymer, the reaction being of the type In this embodiment an enolizable and a non- enolizable acid are preferably used. Examples of pairs of acids which are attached to the polymer, and the enolizable acid acylated by the non-enolizable one are: (1) CH 3 (CH 2 ) 6 COOH and paraClC 6 H 4 COOH; (2) C 6 H 5 CH 2 COOH and C 6 H 5 COOH; (3) C 6 H 5 (CH 2 ) 2 COOH and C 6 H 5 COOH; (4) CH 3 (CH 2 ) 4 COOH and C 6 H 5 - COOH; and (7) C 6 H 5 (CH 2 ) 2 COOH and para- ClC 6 H 4 COOH. The products are Also mentioned is the polymer bound Diekmann cyclization of attached esters of formula and cyclization by reaction of alpha-omega dibromo alkanes with polymer bound malonate All the exemplified reaction products are separated from the polymer using HBr and trifluoroacetic acid.
Patent GB-748006-A (GB)
Title: Improvements in or relating to power brakes for motor vehicles
IPC: B61H13/32
Filed: 1954-12-07
Abstract: 748,006. Hydraulic brakes. FORD MOTOR CO., Ltd. Dec. 7, 1954 [Dec. 14, 1953], No. 35375/54. Class 103 (1). A pneumatic servo-operated hydraulic brake system of the kind comprising a master cylinder 16 normally servo-operated by atmospheric pressure acting against vacuum on a piston 14 of a servo-cylinder 12 connected to the air intake manifold 24, is operated by a pedal 36 from a position as shown in Fig. 2, through a link 42 and lever 32. In the event of the vacuum servo-pressure source failing, a fluid pressure capsule 71, as shown in Fig. 6, connected by pipe 73 to the branch piece 22 and vacuum reservoir 27 is expanded by spring 77 so that the toggle linkage 52, 53 is straightened to the position shown in Fig. 3 and the pedal 37 is raised, thus allowing greater travel before bottoming, the lever 32 being operated at an increased leverage ratio.
Patent GB-367468-A (GB)
Title: Improvements in or relating to fire extinguishing apparatus
IPC: A62C35/60
Filed: 1930-11-25
Abstract: 367,468. Fire-extinguishing apparatus. SANSOME, R. H., Tranquillo, High Street, Hampton, Middlesex. Nov. 25, 1930, No. 35431. [Class 47 (ii).] An automatic fire-extinguishing apparatus, particularly for aeroplanes, of the kind comprising a sealed container a, for fluid under pressure, removably held in a bracket d with its nozzle c in engagement with a seating connected to sprinkler pipes y, has its spring- pressed piercing plunger b operated by an explosive cartridge e<1> which is fired electrically in case of fire or accident. As shown, the cartridge is held in a member e by a block e<2>, and is fired by a pivoted spring striker e<5> when a fusible link e<7> is melted by the electric current. Alternatively, the current may directly ignite a fuze in the cartridge. The electric circuit includes a hand switch at a point convenient for operation, and one or more thermal switches at points of danger. A thermal switch, Fig. 4, comprises two arms f, f<1> which are insulated from each other, are connected to the two leads of the circuit, are urged together by a spring f<2>, and are normally held apart by a fusible or inflammable strip f<3>. An impact-operated switch for inclusion in the circuit comprises a conical member g, Fig. 6, of conducting material arranged within a casing z and connected to one lead g<1> of the circuit. A conducting weight ),3 connected to the other lead h of the circuit by an insulated flexible conductor h<1> is held in the position shown by a cord i attached to a pear-shaped member i<1>. The tatter is held between spring arms i<2>. In case of impact, the member i<1> leaves the arms i<2>, allowing the weight h<3> to touch the member g, and so complete the circuit. The extinguisher a is held to the bracket d by straps d<5> provided with readily-releasable fastenings.
Patent GB-845510-A (GB)
Title: Improvements in the translation of characters on a carrying medium into electric signals
IPC: G06V30/224
Filed: 1955-12-09
Abstract: 845,510. Automatic character reading. REUMERMAN, T., and HELMIG, W. H. T. Dec. 6, 1956 [Dec. 9, 1955], No. 35449/55. Class 106 (1). Symbols are coded for character recognition by one or a plurality of parallel intersections, the location of the intersections being analysed by scanning photo-electrically, electronically, e.g. in a camera or pick-up tube, electrically using conductive symbols and spaced terminal brushes detecting conductivity, electromechanically using rectilinear feelers closing electric contacts, electromagnetically with the symbols of magnetic material or ink, photographically or radiographically. The symbol may be divided vertically as in Fig. 1 or horizontally and may be scanned with a wide light band 17 falling on the document 18, the reflected light being focused on the photo-cell 21 controlling the load or machine 22 (Fig. 5). Representation codes may be binary, biquinary, international five element or self-correcting seven element. Start and stop pulses may be combined with the codes.
Patent GB-1531367-A (GB)
Title: Method of producing fermented-soybean material and food products prepared from said material
IPC: A23L11/00
Filed: 1976-08-26
Abstract: 1531367 Processing fermented soybeans OTSUKA KAGAKU YAKUHIN KK 26 Aug 1976 [28 Aug 1975 (2) 19 March 1976 12 April 1976 7 July 1976] 35455/76 Headings A2B and A2Q Fermented soybeans prepared by fermenting steamed soybeans with Bacillus natto and maturing the fermented beans are freeze-dried and separated into outer layer and inner layer portions. A liquid seasoning may be added before freeze-drying. The products may be mixed with salad dressing, a cracker composition, precooked rice or dried seaweed, and may be used to provide food compositions for reconstitution with water.
Patent GB-405442-A (GB)
Title: Improvements in and relating to wardrobe trunks
IPC: A45C5/04
Filed: 1932-12-15
Abstract: 405,442. Wardrobe trunks. WELLS, S. C., 33, Bowling Green Lane, Farringdon Road, London. Dec. 15, 1932, No. 35554. [Class 52 (i).] A wardrobe trunk has a section 2 divided into compartments covered by flexible or stiffened flaps 9 secured by fastenings 10 of the sliding- clasp type. Additional fasteners, such as press-button fasteners, may be fitted to the flap edges, which may be stiffened by steel or other strips. In a modification one edge of each flap is hinged, and the side edges are fitted with sliding-clasp fasteners.
Patent GB-989322-A (GB)
Title: Process for the production of cycloaliphatic amines
Inventor: DUGGAN RAYMOND JOSEPH
Filed: 1963-09-09
Abstract: Cycloaliphatic primary amines are prepared by passing through a monocyclic primary arylamine/hydrogenation catalyst mixture at or above the b.p. of the product but below that of the starting material, a gas at atmospheric pressure comprising elemental hydrogen, the amine product being removed as fast as it is formed, and condensing and recovering the amine product from the gas leaving the reaction mixture.  The preparation of cyclohexylamine is exemplified, but starting materials also mentioned are o, m- and p-toluidines, xylidenes, amindines and phenetidines; mesidine, pseudocumidine, benzidine, o-tolidine, 4-aminodiphenylmethane and 4,41-diaminodiphenylmethane (the latter four compounds are "monocyclic" as defined in the Specification).
Patent GB-1515055-A (GB)
Title: Method and apparatus for pneumatically removing trash waste on open-end spinning machines
IPC: D01H4/36
Filed: 1976-08-26
Abstract: 1515055 Openers, removing dirt PARKSCRAMER (GREAT BRITAIN) Ltd 26 Aug 1976 [30 Sept 1975] 35643/76 Heading D1N Dirt or trash is continuously removed from fibres being opened in an open end spinning machine by a relatively low velocity air flow and conveyed through passageways to a remote waste collection zone and periodically and simultaneously the passageways and any accummulated waste is purged on at least one side of the machine by momentarily increasing the air flow to create a relatively high velocity air flow in the passageways. The passageways on one or both sides of one or more machines may be purged sequentially or simultaneously at intervals, e.g. for a duration of up to 6 seconds. The increased air flow may be produced by opening a gate valve between the source of suction and the passageways.
Patent GB-864263-A (GB)
Title: Improvements in or relating to transistor circuit arrangements
IPC: H03K17/795
Filed: 1957-11-15
Abstract: 864,263. Photo-transistor switching circuits. PHILIPS ELECTRICAL INDUSTRIES Ltd. Nov. 15, 1957 [Nov. 20, 1956], No. 35665/57. Class 40(6) In a circuit for reducing free charge storage effects in a photo-transistor 1, a diode 4 exhibiting small charge storage is connected in parallel with the collector base-path and has the same reverse direction as the collector-base junction. By this means the collector is prevented from becoming positive with respect to the base. The photo-transistor is switched by a light source 7.
Patent GB-468499-A (GB)
Title: Improvements in pianofortes or like musical instruments
IPC: G10C3/02
Filed: 1936-12-30
Abstract: 468,499. Pianofortes. KEMBLE, M., and JACOBS, M. V., (trading as KEMBLE & CO.). Dec. 30,1936, No. 35774. [Class 88 (ii)] [Also in Group XIV] In pianofortes and the like having a hinged keyboard fall 14 and a door 21 extending upwardly beyond the raised fall, the lower edge of the door projects forwardly as shown in broken lines so that the door forms the back of a music desk of which the outside of the front 15 of the raised fall constitutes the base. The bead 17 of the fall forms a front ledge for the music. As shown, the door is hinged at 22 so as to be movable from a vertical position to the inclined position and has triangular side cheeks 25 with ball detents 27, 28 to maintain it in its two positions and a slotted plate 31 engaging a pin 32 on the wall 24. The fall is pivoted at 18 and has a tail portion 19 which co-operates with a ball detent 35. In a modification the door may be pivoted at its lower end and the raised fall may lie to the rear of the position shown. Specification 15756/93, [Class 88], is referred to.
Patent GB-808540-A (GB)
Title: Improvements in collapsible braced supports
IPC: E04H12/16
Filed: 1956-11-22
Abstract: 808,540. Openwork posts. BAUGESELLSCHAFT, K. BEYER & CO. Nov. 22, 1956 [Dec. 16, 1955], No. 35791/56. Class 20(1) A collapsible braced support comprises a plurality of longitudinally aligned elements 1 between whose ends are interposed connecting plates 2 to engage and centre adjacent elements 1, each connecting plate 2 having a plurality of projections 3 'from which struts 4 project lying in a plane perpendicular to the support axis, and eyes which are connected by braces 6 to the struts of adjoining connecting plates. As shown, elements 1 engage in short tubular extensions 11, 11<SP>1</SP> on opposite sides of connecting discs 2. Distributed round the periphery of disc 2 are four pin shaped projections 3 on which engage tubular struts 4 and between the projections 3 are eyes 5 to which braces 6 are connected. Two braces 6 extend, one upwardly and one downwardly from the end of each strut and are connected at their other ends to eyes 5 on adjacent discs 2, these eyes being connected by further braces 6 to the struts on discs 2 next but one from the first discs. The braces are provided with turnbuckles 7.
Patent GB-1434741-A (GB)
Title: Racket frames and method of manufacturing same
IPC: A63B49/10
Filed: 1973-07-27
Abstract: 1434741 Moulding rackets R MARTEL 27 July 1973 [2 Aug 1972] 35824/73 Heading B5A [Also in Division A6] A method of manufacturing a racket frame by moulding is characterized in that in a mould 7, 8 having the desired contour there is disposed, so as to extend longitudinally within the components the frame to be obtained, glass or other fibres 5 of a length so as to extend throughout the contour of the frame, said fibres being embedded in a synthetic resin, e.g. a polyester resin, to form an inner core of the frame; and forming about this core, either in the mould or subsequently, an outer casing consisting of sheets 6a glass fabric or mat or the like impregnated with synthetic resin. To form holes in the frame for stringing, spindles 11 (which may be in the form of a comb, Fig. 11, not shown) can be inserted through guide holes 9, 13 in the mould parts 7, 8 and through the casing 6 (if present) and fibres 5 so as to part the fibres around the spindles, before the setting of the resin. A stiffening element consisting of a material such as balsa wood or plastics material may be incorporated in the shoulder portions of the frame and such element can have a varying thickness along its length.
Patent GB-316838-A (GB)
Title: Improvements in or relating to machines for feeding mold charges of molten glass
IPC: C03B7/086
Filed: 1928-12-05
Abstract: 316,838. Wade, H., (Miller, Inc., W. J.). Dec. 5, 1928. Delivering molten metal.-A feeder of the reciprocating plunger type is provided with means for bringing the plunger nearer to one side of the outlet, usually the side towards the tank, in order to compensate for the effect of variations in the temperature of the glass around the outlet. A device is also provided for indicating to the machine minder the spacing between the internal wall of the outlet and the lower end of the plunger. The feeder comprises a plunger 5 which reciprocates vertically above an outlet 3 in a forehearth 2, the construction of the feeder and the means for reciprocating the plunger being described in Specification 316,837. A shearing device 145, which cuts the issuing glass, is constructed and operated as described in Specification 318,063. The plunger is clutched to a screwed stem 7 which extends upwards through a loosely-fitting sleeve 8. Two nuts 10, above and below the sleeve 8, enable the stem to be adjusted vertically to raise or lower the plunger. The stem rotates on ball bearings within the sleeve and is connected by a universal joint to a shaft 112 which is rotated by a shaft 63, thus rotating the plunger to stir the glass in the forehearth. The sleeve 8 is mounted in gimbals in an opening 14 in a beam 15, so that the sleeve can be swung freely in the opening. The sleeve is connected rigidly to an arm 104 having an aperture which fits loosely over a fixed pin 105. A depending rod 106, rigidly secured to an arm 104, is so proportioned that its lower end bears the same relation to an adjustment cup 107 as the lower end of the plunger 5 bears to the outlet aperture 3. The lower end of the rod passes through a bracket 110, and bolts 111 enable the lower end of the rod to be adjusted in relation to the cup 107. The bolts thus enable the position of the lower end of the plunger to be adjusted in relation to the axis of the outlet 3. By moving it towards the side of the outlet at which the glass is hottest, the outflow of the hotter and more fluid glass can be retarded. The rod 106 can be arranged on either side of the machine.
Patent GB-1092560-A (GB)
Title: Output windows for microwave tubes
IPC: H01P1/08
Filed: 1965-08-20
Abstract: 1,092,560. Waveguide seals; discharge tubes. THOMSON-VARIAN. Aug. 20, 1965 [Sept. 5, 1964], No. 35868/65. Headings H1D and H1W. An output window between a microwave tube and a pressurized waveguide comprises a section of rectangular waveguide divided by a septum 33 perpendicular to the electric field, each subdivision of the guide containing a seal in the form of a block 21 of dielectric (e.g. alumina) which constitutes a half-wave resonator within the pass band of the tube. By choosing suitable dimensions for the length of the guides 31, 32 and their cross-section in the vicinity of the seals, the pass-band may be arranged between the parasitic resonances of the blocks in the transmission modes TE 30  and TE 40 . Thus, the distance between the blocks is chosen to slightly less than # 0 /4 where # 0  is measured at the principal resonance frequency of the blocks. Further, the length of the waveguides is made equal to the axial length of one of the blocks plus # 0 /2. In the embodiment shown each block 21, 22 is sealed within a rectangular copper tube and the tubes are located between the septum 33 and a block 20 of copper 20. The block 20 contains openings 51, 52 which each extend half way around the block and communicate with wide lateral grooves in the septum. The grooves communicate through passages 34. A cooling medium is introduced and removed through openings 54, 55.
Patent GB-947199-A (GB)
Title: Electric impulsing device for driving a mechanical oscillator
IPC: G04C3/06
Filed: 1961-10-05
Abstract: 947,199. Watches. UNITED STATES TIME CORPORATION. Oct. 5, 1961 [Oct. 5, 1960; Aug. 22, 1961], No. 35872/61. Heading G3T. An electric impulsing device for driving a mechanical oscillator, particularly the balance 18 of a watch, comprises at least one coil 19 and a magnet system such as the two magnets 32, 34 so arranged that the coil moves relative to the field of the magnet system upon oscillatory motion of the balance so that voltage pulses are induced in the coil, an electric maintaining circuit including in series the coil 19 and a tunnel diode 40 whereby the voltage pulses are applied to the diode periodically and vary the current applied through the diode from a source 41 to the coil 19 to maintain the balance, there being a capacitor 66 shunted across the tunnel diode. The tunnel diode may have a characteristic of one of the forms shown in Fig. 5, e.g. in which it rises at 47 less steeply from the minimum conductivity point 44 in the direction of increasing voltage than it does toward zero voltage, or in which at 60 or 61 at voltages beyond the minimum conductivity point 44 it arises either only little or not at all or continues to drop to zero current. The arrangement may be such that the voltage affecting the diode does not fall below the peak current voltage between the minimum conductivity point and zero of the characteristic so long as the mechanical amplitude of the oscillator remains within normal limits. The cell 41 may have a potential which varies according to its state of charge, and the voltage applied to the diode when the cell is fully charged may exceed the voltage at the minimum conductivity point but be less than said voltage when the cell has been discharged to a permissible minimum. The circuit may include a resistor in series with the diode. The capacitor 66 serves to suppress uncontrolled or spurious oscillations and its capacitance may be chosen to satisfy the relation T mech >>T RC >>T spurious   osc  Where T mech  = the period of the mechanical oscillation, T RC  = the time constant of the RC circuit comprised by the ohmic resistance of the coil and capacitor, and T spurious osc. = the period of the spurious oscillations.
Patent GB-1460537-A (GB)
Title: Process for the preparation of thiophene derivatives and deri vatives obtained by the said process
IPC: C07D333/24
Filed: 1974-08-14
Abstract: 1460537 Thiophene derivatives LABAZ 14 Aug 1974 [30 Aug 1973] 35878/74 Heading C2C Novel thiophene derivatives of the formula wherein R 1  is a cyclohexyl or benzyl radical, R 2  is a hydrogen atom or a cyclohexyl radical, provided that when R 1  is a benzyl radical then R 2  is hydrogen, are prepared by a novel process for preparing such compounds of the above formula wherein R 1  and R 2  are alkyl, alkylene, alkenyl, optionally substituted cycloalkyl, aralkyl or cycloalkenyl radicals, or R 2  is hydrogen, or R 1  plus R 2 , together with the carbon atom to which they are attached, represent a cyclopolymethylene radical, which comprises reacting a compound of the formula wherein R 3  is an alkali metal or a group as defined by R 1 , and R 4  is hydrogen or an alkali metal, provided that when R 4  is hydrogen, then R 3  is an alkali metal, with a compound of the formula R 5 X, wherein X is fluorine, chlorine, bromine or iodine and R 5  is a group as defined for R 1  or a radical of the formula -CH 2 -(CH 2 ) n -X wherein n is an integer greater than or equal to 1, in the presence of a solvent at a temperature of from- 20 to +80 C.
Patent GB-968673-A (GB)
Title: Improvements in the manufacture of translucent vitreous silica products
Inventor: EDWARDS FREDERICK JAMES
IPC: C03C1/02
Filed: 1959-10-23
Abstract: To produce translucent vitreous silica, a charge of quartz sand before introduction to a refractory metal melting furnace vessel, is subjected to a series of cleaning treatments comprising at least screening, washing, a flotation process and magnetic separation.  The series may also include acid leaching, grinding the sand and/or a high-temperature gas treatment. The vitreous silica is drawn from the furnace vessel through a die or a die and mandrel assembly to form rod or tube.