baber/WOPTO huggingface dataset:
Patent GB-973816-A (GB)
Title: Frequency-measuring methods and systems
IPC: G01R23/02
Filed: 1962-06-21
Abstract: 973,816. Frequency discriminators. LEEDS & NORTHRUP CO. June 21, 1962 [June 26, 1961], No. 24010/62. Drawings to Specification. Heading H3A. Frequency difference between a standard and unknown, e.g. mains, frequency is measured by applying them to diode limiters and transistor trigger circuits generating square waves whose outputs are then respectively applied to initiate and terminate pulses from a transistor bistable circuit of duration varying with the phase difference, which are then integrated and smoothed to produce a sawtooth wave, of recurrence frequency equal to the difference frequency and of instantaneous amplitude indicating the phase difference, and the sawtooth differentiated to produce a D.C. output indicating by its polarity and magnitude the sense and magnitude of the frequency difference. A part only of the differentiated sawtooth wave may be applied to the output, the remainder including the flyback edge being cut out by a switch to avoid the transient produced by the flyback. A time constant circuit following the switch keeps the output constant. Alternatively, a second bi-stable may be actuated by the two square waves, after one has been phase displaced by 180 degrees in a polarity inverting amplifier, and a sawtooth formed as before from its output, and its long flank part differentiated to produce an equal D.C. signal alternately applied with the first D.C. signal, by the switch, to the output. To operate the switch, the two square waves may be vectorially combined and rectified to produce a D.C. vary ing with the frequency difference and actuating or releasing a relay above and below a certain value respectively. The final output may be used for stabilizing the unknown frequency relative to the standard.
Patent GB-751324-A (GB)
Title: Improvements in and relating to electric apparatus, such as liquid immersed switches, comprising means for discharging gases produced during operation of the apparatus
IPC: H01H33/55
Filed: 1954-08-18
Abstract: 751,324. Oil switches; switch cases. NAAMLOOZE VENNOOTSCHAP COQ. Aug. 18, 1954 [Aug. 24, 1953], No. 24037/54. Class 38(5) In order to prevent discharge of liquid through the vent 12 of a liquidimmersed switch, the vent communicates with the upper end of a chamber 24 containing a large number of baffling surfaces and the lower end of the chamber communicates with the interior 19 of the switch casing both on a high level, through a passage 17 of relatively great cross-sectional area, and, on a low level through a passage 21 of relatively small crosssectional area. The chamber 24 may comprise the interior of a tube 8 housed within a tube 9. Both tubes are secured within a cap 10 screwed to the cover 5 of the casing by a hol- Jow screw 11. The lower ends of the tubes are closed by a plug 13 having a central passage 15 communicating, through lateral passages 16, with the lower end of space 17 between the tubes and with outlet 21. A small chamber 22 communicating with vent 12 and chamber 24 may be housed within cap 10. Both chambers 22, 24 are filled with metal chips. Gases produced in the liquid during operation rise towards cover 5 and flow, together with some of the liquid, through passages 18, 17, 16 and 15 to chamber 24 where the liquid is trapped by the baffling surfaces. The gases then pass to chamber 22, where any remaining liquid is trapped, and escape through vent 12. The trapped liquid returns to the interior of the casing through outlet 21, which is normally below the surface of the liquid in the casing.
Patent GB-141610-A (GB)
Title: Improvements in and relating to safety pins
IPC: A44B9/14
Filed: 1919-10-02
Abstract: 141,610. Large, F. W. Oct. 2, 1919. Safety -pins.-The sheath consists of a flattened band e, Figs. 1 and 3, formed with a single inclined slot f and held rigidly in place by the bent portions d of the back a of the pin and by pressing together the edges e'. The slot f has inturned edges formed by opening the slit f in the blank shown in Fig. 5. To prevent fabric from being caught in the spring b, a flattened band i may be used, this band being secured by pressing in the edges i<1>, clearance being provided at k for the movement of the pin.
Patent GB-1271525-A (GB)
Title: A beam for constructional use in buildings
Inventor: GUELE GUY
IPC: E04C3/04
Filed: 1969-05-12
Abstract: 1,271,525. Structural beams. G. GUELE. 12 May, 1969, No. 24104/69. Heading E1K. A beam of I-section comprises box sections 1, 3 connected by a web 11, one section 3 having a longitudinal through slot 4, the other section 1 having a channel 2. The beam is bent from sheet material. Channel 2 accommodates dovetail elements (16, Figs. 3 and 4, not shown) attached to a purlin (14) slot 4 locates a panel edge (7, Fig. 5, not shown). Alternatively a plate (8, Fig. 7, not shown) rests on ribs 10 and carries a ceiling element (9)
Patent GB-321976-A (GB)
Title: Improvements in or relating to concrete
IPC: E01C7/35
Filed: 1928-08-23
Abstract: 321,976. Glover, M. L. Aug. 23, 1928. Macadamized roads; foundations. - In the treatment of concrete having voids, as described in Specification 295,545, after the concrete has been laid or cast, cement, cement-mcrtar, or mortar is applied to fill the voids to a predetermined level, and, if desired, chippings, sand, or gravel introduced before the application of bitumen or its equivalent, such as rubber, in the form of emulsion or hot or melted liquid. The cement or mortar is applied as liquid or as dry powder and brushed in simultaneously with or before the addition of water. The concrete may be laid on a bed of voidless concrete before or after the bed has set, or may be precast as blocks or slabs.
Patent GB-1035289-A (GB)
Title: Furan derivatives, their preparation and use
IPC: A61K8/49
Filed: 1965-06-09
Abstract: The Specification comprises furan derivatives of the formula <FORM:1035289/C2/1> wherein R1 = CH3, OH, alkoxy with 1-12 C atoms or allyloxy, R2 = H or OCH3, R3 and R4 represent hydrogen or, together, the unit -CH = CH-CH = CH-, provided that R1 is not hydroxy when R2, R3 and R4 are simultaneously hydrogen.  Such compounds are prepared in three ways.  (1) By the action of an acid of formula <FORM:1035289/C2/2> or a reactive derivative of this acid with a phenol of formula <FORM:1035289/C2/3> wherein R1-R4 are as defined above, in the presence of a Lewis Acid.  AlCl3 is the preferred Lewis Acid.  (2) By converting the radical OR, wherein R is alkyl with up to 6 C atoms, and possibly the radical R1 when it is an alkoxy or allyloxy group in a compound of formula <FORM:1035289/C2/4> to an OH group by ether-splitting with, preferably, AlCl3 or pyridine hydrochloride.  R1-R4 are as defined above.  (3) By converting the OH group which is meta to the R2 group to alkoxy or allyloxy in the compound <FORM:1035289/C2/5> by means of an alkylating or allylating agent. R1-R4 are as defined above.  Suitable alkylating agents are alkyl halides or sulphates, and allyl chloride or bromide is used for allylation. All of methods (1), (2) and (3) are performed in conventional manner.  The compounds of the invention have strong U-V absorptive properties, and both cosmetic and industrial uses are envisaged (see Divisions A5 and C3).ALSO:Compositions containing novel phenyl-benzofuryl-(2)-ketones, giving protection against U-V radiation comprise the following.  A nitrocellulose composition: Nitrocellulose wool (low viscosity) 20%, Dibutyl Phthate 5.0%, 2:4 - dihydroxyphenyl - benzofuryl - (2) - ketone 0.5%, toluene 15%, n-butanol 10%, Butyl acetate (100%) 49.5%.  A methacrylate composition:  Methyl methacrylate 99.05%, 2:4-dihydroxyphenyl-benzofuryl-(2)-ketone 0.25%.  Catalyst 0.70%.  A PVC composition:  PVC powder 70%, Plasticizers 27%, Stabilizer 2.0%, Lubricant 0.5%, 2:4-dihydroxyphenyl-benzofuryl-(2)-ketone 0.5%.ALSO:Barrier creams giving protection against U-V radiations contain the novel compound 2-hydroxy-4-methoxyphenyl-benzofuryl-(2)-ketone.  A cream composition contains: Base of fats and oils 50%, water 48%, novel compound 2%.  A spray composition contains: Isopropyl nyristate 10%, Isopropyl alcohol 87%, novel compound 3%.
Patent GB-757007-A (GB)
Title: Improvements in or relating to hammer drills
IPC: E21B19/087
Filed: 1954-08-25
Abstract: 757,007. Percussive drills. FLOTTMANN, F. H., [trading as FLOTTMANN DIPL., ING. F. H.]. Aug. 25, 1954 [Aug. 28, 1953], No. 24794/54. Class 124 A percussive drill having longitudinal clamp bolts external to the body is supported on a strut having a fork at the upper end, the ends of the fork being pivotally attached to the clamp bolts disposed on each side of the drill body. As shown, a strut 1 has an end 2 comprising a fork 3, the ends of which have trunnions which enter apertures formed in the longitudinal clamping bolts 6 on the drill body 4. In a modification the clamping bolts may be fitted with longitudinally adjustable bearings carrying apertures to receive the trunnions on the forks. The clamping bolts on the bearings may carry the trunnions and the forks may be provided with apertures. The clamping bolts may be longitudinally adjustable which provides a limited adjustability of the position of the pivots.
Patent GB-1077160-A (GB)
Title: Process of manufacturing butadiene-styrene copolymers
Inventor: ONISHI AKIRA
IPC: C08F236/10
Filed: 1965-06-11
Abstract: Butadiene-styrene solid copolymers and butadiene-alpha-alkylstyrene solid copolymers having a cis-1,4 content of at least 85% and substantially no gel are made by effecting the copolymerization of the monomers either together or sequentially, in the presence of a diluent and a catalyst obtained by reacting at a controlled temperature a component (A) comprising an organic carboxylic acid salt of nickel or cobalt, a component (B) comprising BF3 or its complex with an oxygen containing organic compound, and a component (C) comprising an organometallic compound of the general formula RnM in which R is a monovalent hydrocarbon radical, M is a metal of Group I, II, or III of the Periodic Table and n is the valency of M. Exemplified catalysts are (1) Ni-isooctenate, BF3 etherate, and (C2H5)3Al, (2) Nibenzoate, BF3(C2H5)2O, and (C2H5)3 Al, (3) Ni-2-ethylhexoate, BF3(C2H5)O, and (C2H5)2Al, and (4) Ni-naphthenate, BF3(C2H5)2O, and (C2H5)3Al.  The Specification contains lists of other suitable components.  The copolymers are vulcanized with conventional recipes.
Patent GB-1421368-A (GB)
Title: Wheeled carriage for invalids
IPC: A61G3/06
Filed: 1973-05-24
Abstract: 1421368 Invalid lifting device A N CLIFTON 1 April 1974 [24 May 1973] 24864/73 Heading B8H [Also in Division B7] An invalid carriage carries a seat which is slidably and nontiltably engaged or disengaged with a cantilever arm on the carriage, the arm being movable in a substantially vertical direction. As shown in Fig. 1 the cantilever arm 22 of square cross-section is inserted in square holes (not shown) in side plates 20, 21 of a tubular frame seat 18. The back of seat 18 may be collapsible. For the purpose of transfer of an invalid from seat 18, the seat is swung in a horizontal plane from its normal position about pivot 24 into the position shown in Fig. 1, and the seat lowered by jack 30 on to say, an automobile seat. Pin 23 is removed and carriage 10 together with the cantilever 22 is pulled away leaving the seat 18 behind. If a person is to be removed from a bed, the back of the seat is hinged to lie flat and one arm rest is detached so that the invalid can be rolled on to the seat which is placed flat on the bed. In a modification the upper and lower fittings 25, 26 are combined into a single box. Instead of only the lower support 25 being rigidly attached to sleeve 27 of pillar 11, Fig. 1, both fittings 25, 26 can be combined in a single box and welded to sleeve 27. Also, a further vertical pillar may be attached to chassis member 12b to support corner 19r of the seat frame 19 when in its normal position. Chassis members 12b, 12c, which are held apart by a cross-bar are pivotable on point 15 on plate 15a which also carries pivoted arms 16, 17 of castor wheels 16a, 17a. The arms 16, 17 have radius rods 16b, 17b which may each be replaced by a spring loaded pin passing through a corresponding arm and engaging one of several holes in the plate 15a.
Patent GB-1403947-A (GB)
Title: Structural parts produced from aluminium-containing alloys
IPC: C22C21/06
Filed: 1973-05-24
Abstract: 1403947 Al-Mg-Si alloy parts HONSEL-WERKE AG 24 May 1973 [7 June 1972] 24891/73 Addition to 1384264 Heading C7A The structural parts, claimed in the Specification 1384264, are modified in that the Mn, Co, Cr content of the alloys is wholly or partially replaced by Mo and/or V.
Patent GB-150695-A (GB)
Title: Lens-edge grinding machine
IPC: B24B9/14
Filed: 1920-08-28
Abstract: 150,695. Ashton, T. N., and Ashton, J. F. Sept. 4, 1919, [Convention date]. Lenses, grinding; driving and feed devices.-In a machine for grinding simultaneously the edges of a number of lenses of different pattern, the grinding-wheel 7 rotates about a vertical axis and is surrounded by a table 30, Fig. 1, which has radial slots 31 to accommodate the lens-carriages 26, and is rotatable to bring a carriage to any desired position relatively to the operator. The grinding-wheel is driven through belt and worm gearing 1 - - 5 and is reciprocated axially, to equalize the wear, by the engagement of a ball 15, Fig. 3, at the lower end of the shaft 6 with a cam 14 rotated from the main pulley 2 through chaiu and worm gearing 9 - - 12. The rotation of the lens pattern is effected by a cam shaft 13, which drives, through bevel-gearing 16, a shaft 17 carrying a pinion 18 in engagement with a crown-gear 19 supported by the part 51 of a base 32, and the crown-gear drives a pinion 20, Fig. 2, slidably mounted on a shaft 28; the pinion 20 may be disengaged from the crown-gear by a rod 29, whereby manual operation of the shaft 28 is allowed. The shaft 28 drives, through bevelgearing 22, a shaft 23 carrying a friction-plate 35, which acts as a lens-pattern and upon which the lens rests. The lens carriage 26, supported and guided by a slot 31, carries a spring-pressed plunger 24 having pivoted thereon a friction-plate 36 adapted to be pressed on the top of the lens: the plunger is moved to insert or remove a lens by means of a hand-lever 25. The carriage is pressed up to the grinding-wheel by a spring 27, and to ensure that the lens is ground to the correct diameter, a guard 46, acting as a stop for the lens pattern, is provided on the table 30, its position being set by means of a gauge dial 43 with a pointer 44 and a thumb-screw 45. The table 30 is rotatable about the shaft 6 and has a bearing at 37 on the base 32. Water is carried away by pipes 40, 42 and a pan 41. The Specification as open to inspection under Sect. 91 (3) (a) comprises also lugs on the table 30 and on the base 32 which, when engaged by a pin, lock the table in position; the lens carriage may also be held away from the grinding-wheel by a catch. This subject-matter does not appear in the Specification as accepted.
Patent GB-381300-A (GB)
Title: Improvements relating to manholes and the like
IPC: E02D29/14
Filed: 1931-09-04
Abstract: 381,300. Manhole frames and covers. BOSTEL, E. and BOSTELS, Ltd., 71, Ebury Street, Buckingham Palace Road, London. Sept. 4, 1931, No. 24914. [Class 107.] The frame of a manhole cover is provided with one or more lugs 8 which, as shown in Figs. 1 and 2, project outwardly and are each bound on four sides by ribs 4a, 4b upstanding from the base of the frame so as to form a recess 9 which is partly covered by a lug 7 projecting outwardly from the cover and is adapted to receive the end of a coverlifting tool. The ribs 4a, 4b form part of a continuous rib 4 extending around the frame, one rib 4b being cut away so that the lug 7 on the cover may rest upon the upper part of such rib. The cover is also adapted to be supported on an inner rib 2 on the frame. A rib 10 on the underside of the cover is adapted to fit in the groove 5 between the ribs 2, 4 on the cover, and any suitable sealing composition may be provided in the groove 5 and also in the recesses 9. In a modification the lugs 12, Fig. 4, on the frame are inwardly directed and the cover is provided with an inwardlyextending recess 14 which, when the cover is in position, is adapted to leave an opening for the reception of the tool. The cover is secured in position by bolts or turnbuckles fitted to the parts which overhang the recessed lugs.
Patent GB-443724-A (GB)
Title: Improvements relating to public address apparatus
IPC: H04R1/34
Filed: 1934-08-30
Abstract: 443,724. Acoustic horns. ALLAN, W. H., 126, Newington Causeway, London. Aug. 30, 1934, No. 24967. [Class 13] [See also Group XXXIX] Public-address apparatus comprises a loudspeaker unit 1, preferably of the largediaphragm moving-coil type, in combination with a horn 2 having a straight axis horizontally arranged, the horn expanding, preferably exponentially, by a series of elliptical sections to an elliptical or substantially rectangular mouth 4 of which the major axis is horizontal. The long edges of the mouth may be in the form of an arc having the unit 1 as centre so that sound travels a constant distance by any path. The unit and horn may be mounted on a rigid undercarriage.
Patent GB-599537-A (GB)
Title: Improvements in or relating to apparatus for fastening bands around packages
IPC: B65B13/02
Filed: 1945-09-26
Abstract: 599,537. Bale-tie fasteners. BOABANDS, Ltd. (Gerrard & Co., A. J.). Sept. 26, 1945, No. 25005. [Class 45] In band-tensioning and cutting apparatus for bale-tying, the gripping jaws 26, 36 of the bandholding device are located to one side of the vertical through the pivotal axis of the shaft 28 about which the movable jaw 36 swings, so that the grip increases with the tension on the band 100. The gripping device is normally held closed by a spring plunger 38 carried by the horizontal limb 32 of the bell-crank carrying the jaw 36 and bearing on a fixed block 40. The gripper is released by downward pressure on a cutter-actuating lever 112 which contacts a boss 46 on the limb 32. Tensioning of the band is effected by a slotted drum 56 rotated by pawl-and-ratchet operated by a lever 60, two detents, of different lengths, holding the drum against unwinding. The cutter comprises a fixed lower edge 88 on a removable blade 82, and an upper edge 96 on a blade 84 pivoted to swing down on the free end 89 of the band and nip it off against the edge 88. A spring plunger normally keeps the blade 84 up, and its downward motion is effected by a cam 116 on the lever 112 acting through a steel plunger. According to the Provisional Specification, the release of the gripping jaws 26, 36 may be effected by depressing the winch lever 60.
Patent GB-1386915-A (GB)
Title: Identity card
IPC: G06K19/10
Filed: 1973-05-25
Abstract: 1386915 Credit cards &c. ID-KORT AB 25 May 1973 [5 June 1972] 25055/73 Heading B6A An identity card or the like is provided with a radioactive substance and information as to the intensity of the radiation from the substance. The information may be provided in perforations 2 and/or a magnetic strip 3 encased in a laminated card also having a photograph 5 and printed areas 6, 7, 8 thereon. The radioactive substance, provided in area 4, may be Sr<SP>90</SP> having a relatively long half life so that information regarding its initial intensity need not be updated. Alternatively, if a substance having a relatively short half life is used, e.g. Tl<SP>204</SP>, Pm<SP>147</SP>, the intensity information is supplemented by the date when the intensity was checked so that on subsequent checking, the expected intensity can be evaluated and checked against the measured value. The intensity information and date of checking are then updated on the card. The card may be encased in plastics material.
Patent GB-1200833-A (GB)
Title: Improvements in and relating to pipe joints
Inventor: ELLIS BERNARD ROBERT
IPC: F16L51/03
Filed: 1968-05-25
Abstract: 1,200,833. Expansion joints. BROCKING- TON & SCOTT Ltd. 20 May, 1969 [25 May, 1968], No. 25102/68. Heading F2G. A pipe 14 closed at one end 17 is disposed within a pipe 12 so as to project beyond the ends thereof and annular metal bellows 10, 11 are secured to and extend respectively between one end of the pipe 12 and the pipe 14 and the other end of the pipe 12 and the pipe 14, openings 16 being formed in the pipe 14 between the positions at which the bellows are secured to that pipe to establish communication between the interior of the pipe 14 and the space between the two pipes, whereby the inner surfaces of the two bellows are subjected to the pressure within the pipes, the outer surfaces being subjected, in use, to atmospheric pressure. Outlet means lead from the space between the pipes 12, 14 to a pipe 21 which is fixed relative to and extends parallel to, or coaxial with, the pipe 12. The joint is such as to permit the flow of fluid introduced under pressure into the pipe 14 and space between the pipes 12, 14 to the pipe 21. As shown, a pressure vessel 19 fitted over the bellows 11 is attached to the pipe 12, and an outer casing 20 around the vessel provides an annular fluid passageway to the pipe 21; pipes 23 in the passageway establish communication between the atmosphere and interior of the vessel. The pipe 12 may move axially and laterally and angularly with respect to the pipe 14, but to hold the pipes in coaxial relationship guide rings or blocks may be attached to the interior of the pipe 12.
Patent GB-854747-A (GB)
Title: Improvements in or relating to golf clubs
IPC: A63B53/04
Filed: 1958-11-17
Abstract: 854,747. Golf-clubs. GARDEN, A. D. Nov. 17, 1958, No. 25147/60. Divided out of 854,249. Class 132(2). A golf-club head 1 has an aperture 3 taking a stud integrally formed on the rear of a hard rubber striking surface (not shown) to secure the latter in place. Additional studs may take through slots 2. In a modification, the head is concave on the front, the concavity being filled with the striking surface provided with a central stud taking through a central aperture in the head.
Patent GB-1497579-A (GB)
Title: Contact arrangement for electric switches
IPC: H01H33/664
Filed: 1975-06-12
Abstract: 1497579 Arc extinction in switches SPRECHER & SCHUH AG 12 June 1975 [5 Sept 1974] 25186/75 Heading H1N Arcing electrodes for a vacuum switch having hollow cylindrical contact elements 17, comprise a plurality of mutually spaced electrodes 19 fixedly connected to each hollow contact element and extending into its interior in a direction radial to the longitudinal axis of the contact element and mutually spaced from one another along this longitudinal axis, a central space being left around the longitudinal axis itself. The electrodes may be in the form of metal sheets, perforated discs lying in a plane perpendicular to the longitudinal axis of the contact component, Fig. 5, not shown, or pin electrodes, Fig. 6, not shown. The inner base of the hollow contact element may have a further plurality of mutually spaced pin electrodes, Figs. 4 and 6, not shown. The electrodes may be coated with a getter material and may be made of iron, nickel, tungsten, chromium-nickel, molybdenum or tantalum.
Patent GB-916585-A (GB)
Title: Improvements relating to paper carrier bags
Inventor: HINTON WILLIAM ALBERT
IPC: B65D33/12
Filed: 1960-07-20
Abstract: 916,585. Carrier bags. SUPERWRAP PAPER CO. Ltd. July 13, 1961 [July 20, 1960], No. 25225/60. Class 133. The string handles of a carrier bag are enclosed in flexible tubes 11, the tubes being secured to the reinforced mouth of the bag by staples 14 and projecting a short distance through the holes therein. The flexible tubes may be of polycrenyl chloride.
Patent GB-341933-A (GB)
Title: Improvements in or relating to the control of electric motors
IPC: H02K17/30
Filed: 1929-08-19
Abstract: 341,933. Induction motors. WESCHE, B. A., 1622, Vine Street, Cincinnati, Ohio, U.S.A. Aug. 19,1929, No. 25293. Convention date, June 5. Drawings to Specification. [Class 35.] The rotor bars of a motor controlled by a variable inductance are in narrow and deep slots and may be of high resistance.