baber/WOPTO huggingface dataset:
Patent GB-429740-A (GB)
Title: Improvements in the recording and reproduction of acoustic vibrations
IPC: H04R11/08
Filed: 1934-12-13
Abstract: 429,740. Phonographic recorders and reproducers. NAAMLOOZE VENNOOTSCHAP PHILIPS' GLOEILAMPENFABRIEKEN, Emmasingel, Eindhoven, Holland. Dec. 13, 1934, No. 35815. Convention date. Dec. 15, 1933. [Class 40 (iv)] Electrical sound recording and reproducing apparatus is provided with means for adjusting the resonance frequency of the vibratory system to at least 1000 cycles per second whilst recording and to a value below 100 and preferably below 50 whilst reproducing. As shown, the pivoted armature 1 carrying the stylus is carried by a hollow spindle 3 secured to rubber cushions 14 which provide a low resonance frequency, and the ends of the spindle 3 may be clamped between conical plugs 7, to provide a high resonance frequency. The plugs 7 slide in square bearings 9 and are adjusted by turning a spindle 10 provided with opposite screw-threads.
Patent GB-1012735-A (GB)
Title: Single-stage spur gear unit
IPC: F16H57/025
Filed: 1962-09-20
Abstract: 1,012,735. Toothed gearing. VEREINIGTE ÍSTERREICHISCHE EISENUND STAHLWERKE A.G. Sept. 20, 1962 [Sept. 22, 1961], No. 35904/62. Heading F2Q. In a tilting drive for a metallurgical refining vessel, a trunnion I of the vessel has keyed thereto a large gear-wheel 2 which is adapted to be driven by a meshing pinion 5 mounted in a carrier comprising arms 4 which are suspended from the hub 3 of the gear-wheel 1. Displacement of the carrier is prevented by pins 6a, 6b located at right-angles to the pinion axis. A sheet-metal housing 7 is screwed to the pinion carrier.
Patent GB-513104-A (GB)
Title: Improvements in propellers having an automatically variable pitch
IPC: B64C11/34
Filed: 1937-12-28
Abstract: 513,104. Screw propellers. LAVAUD, R. S. DE. Dec. 28, 1937, No. 35916. Convention date, Dec. 28, 1936. [Class 114J Automatic variable-pitch screw propellers wherein the blades are inclined to the shaft axis and are movable for pitch change under the influence of air forces on the blade and a torsional restraint at the root thereof are further provided with unstable wedge members at the root re-acting under side thrust thereon which except in the mean pitch setting tend to. move the blade further from that setting. An inclined blade 3 has screwed to its root 4 one end of a torsion rod 2, the other end of which is secured to a member 5 which is held in the propeller boss 1 by a ball 11. The member 5 is given a spherical seating surface 6 within a boss 7 in the hub and it is adjustable by movement of the ball when rods 12, 13 are set by means of the screws 14. The heads of the torsion rods 2 are provided with longitudinal V-grooves 15. 16 disposed at right-angles around the axis. These are engaged bv wedge members 17, 18 carried in housings 20, 21 wherein are adjustable bearing blocks 19. These blocks are set so that when the propeller is rotated the action exerted by the root of the blade on the hub as a result of centrifugal forces on the blades, produces a reaction tending to turn the blades away to. extreme pitch settings. Specification 397,158 is referredto... f
Patent GB-820557-A (GB)
Title: Improvements in or relating to the manufacture of hermetically sealed vessels containing gas under pressure
Inventor: BOWTELL JAMES NORMAN
IPC: H01J9/40
Filed: 1956-11-23
Abstract: 820,557. Sealing glass vessels. GENERAL ELECTRIC CO. Ltd. Feb. 12, 1958 [Nov. 23, 1956], No. 35921/56. Class 39(2) [Also in Group XXIII] In a method of and apparatus for closing glass vessels containing gas at a pressure above atmospheric, by sealing a tubular stem 11 held in clamping means 9 while applying a force to the vessel 7 to cause the stem to elongate when heated e.g. by the upward pressure of springs 1, 2 applied to a support 6 for the vessel, the support carries contact actuating means 15 which engage the fixed contacts 16, 17 on elongation of the stem and thereby operate an electric circuit controlling the pinching means 13, the initial position of the fixed contacts 16, 17 being accurately adjustable e.g. by a control screw 21, the adjustment being indicated on a scale 23. The electrical means may also reduce the heat applied by the burners 12 for softening the stem and operate cutters 14 for cutting off the stem below the pinch, a flame playing on the severed stem to complete the seal or produce a second seal. Suitable compositions of glass for the purpose are given in the Specification. Specificaton 800,193 is referred to.
Patent GB-1262461-A (GB)
Title: Improved method for the production of end cores for containers
Inventor: PRESTON JOHN MICHAEL
IPC: B65D8/02
Filed: 1971-03-17
Abstract: 1,262,461. Opening containers. TPT Ltd. 17 March, 1971, No. 35940/68. Heading B8D. [Also in Division B3] Pour and vent openings in the metal end a of a helically wound paper can are sealed by an outer tear strip B<SP>1</SP> and an inner membrane B on opposite sides of the can end, the tear strip having a free end tag portion b and being heat fused to the membrane through the holes so that, on removal of the strip, the membrane is ruptured to provide pouring opening. The tear-strip is a polythene-coated aluminium foil heat-sealed to the can and the membrane, which is of polythene. The sealed can ends are produced by punching a plurality of holes in a tinplate sheet, applying the tear-strips and membrane to opposite sides of the sheet, punching can ends from the sheet, and shaping the edges of the sealed can ends in a curling machine for sealing to the can or container body.
Patent GB-1437425-A (GB)
Title: Magnet operating time compensation systems
IPC: G06K15/00
Filed: 1973-07-27
Abstract: 1437425 Magnet operating time compensation for a line printer FUJITSU Ltd 27 July 1973 [28 July 1972] 35989/73 Heading G4H In a line printer, the instant of printing is adjusted to compensate for changes in the printing magnet drive current so as to avoid irregularities in the printed array. Such a change causes a time lag before the printing impact, and is particularly serious when the number of identical characters (e.g. As, Bs, etc. on a revolving type drum) to be printed on the same line is large since then the magnets in the corresponding printing positions are excited simultaneously in parallel. In the embodiment shown, the characters on the type drum are stored in sequence in a buffer 1 and the characters to be printed are stored in sequence in a buffer 2. When printing e.g. all the Bs in a line, the number of As and Cs (in adjacent positions on the drum) as well as the number of Bs are determined in order to calculate a compensation time tc before which the B magnets are excited. Gates 5-7 respectively pass a pulse for each C, B and A to be printed to counters 8-10. The counts l, m, n are weighted by constants α, #, γ in multipliers 11-13 and added in an accumulator 14. A counter 15 (Fig. 5, not shown) counts from the value αl + #m + γn to a maximum preset value, and the duration of this count provides the required time tc. Since the weights α, #, γ are generally fractions, counters 8-10 and multipliers 11-13 may be replaced by frequency dividers 22-24, Fig. 4 (not shown) feeding counters (25-27). Only the count of the number of Bs to be printed in the line need be used to determine the corresponding tc. In this case the count maybe fed via D/A converter 18, Fig. 2 (not shown) to a compensation time generator (20 and Fig. 5) together with the output from a magnet drive voltage detector (19), the signals being compared by (20) to produce tc.
Patent GB-1268789-A (GB)
Title: Constant output oscillator
IPC: H03B5/26
Filed: 1969-07-17
Abstract: 1,268,789. Oscillators. RCA CORPORATION. 17 July, 1969 [26 July, 1968], No. 36134/69. Heading H3F. [Also in Division G3] The gain-controlling feedback circuit from the output 2 of an oscillator 1, 5 to an input 4 includes two impedances 6, 7 of which at least one is variable with the oscillator output amplitude E 1 , and a constant amplitude signal at oscillator frequency is produced by a difference circuit 46 which subtracts signals 44, 45 derived from the output signal E 1  and the feedback signal E 2 . The frequency determining circuit 5 is either a bridged-T network or a Wien bridge (Figs. 2, 3, not shown), and according to whether it is connected to the inverting input or the non-inverting input of the amplifier 1, so the feedback signal E 2  is connected to the other of these inputs. If the impedances 6, 7 are connected to the inverting input to constitute negative feedback, the impedance 6 is given a negative coefficient of resistance (or impedance 7 a positive coefficient); and if the feedback is positive, the coefficient of impedance 6 is positive (or impedance 7 negative). This ensures that for a given percentage change in E 1  the consequent percentage change in E 2  is smaller. The variable impedance may be a thermistor or light bulb, sensitive to the heating effect of the current in it, or a photoconductive device sensitive to an illumination source energized by the oscillator output. The signals 44, 45 are derived from E 1 , Eg by amplifying or attenuating circuits 40, 42 which are adjustable.
Patent GB-361530-A (GB)
Abstract: 361,530. Money-delivering apparatus; check-freed article delivery apparatus. TAUSCHEK, G., 1, Meinhartsdorfergasse, Vienna. Oct. 17, 1930, No. 31110. Convention date, Oct. 19, 1929. [Classes 27 and 116.] Articles stored in piles; tokens of special form.- Apparatus for delivering coins, notes, and other articles, which is controlled by the insertion of perforated cards &c., is actuated by a single member 11, Fig. 1, which co-operates with groups of feelers 2, each set by the card to control the number of coins &c. ejected from the corresponding stack 21 by a member 9. The feelers are individually spring-urged so as to be capable of extension through apertures in plates 4, 8. When the member 11 is in its upper position, it acts through a lever 5, slot 6, and pin 7, to position the plate 4 so that the feelers are withdrawn to permit insertion either mechanically or by hand of a card 26. The lever 11 is then depressed, the first part of the motion moving the plate to allow the feelers to assume the positions shown owing to the arrangement of apertures in the card &c., and thus correspondingly to limit the vertical position of the ejector 9. During the further operation of the lever 11, the ejector 9 is rocked about the pin 10 under the action of a toggle 13, 14, the coin-support 20 being slotted to permit passage of the ejector. During the downward passage of the coins &c. subsequent to the withdrawal of the ejector 9 under the action of a spring 17 attached to the member 11, a sleeve 22 prevents passage of coins to the shoot 23. In another form, Fig. 4, the member 11 is actuated by the insertion of the card, which through a lever 28 closes a contact 30 to energize a magnet 31, which is subsequently de-energized by the breaking of the contact by an extension 32 on the lever 11.
Patent GB-641416-A (GB)
Title: Improvements in or relating to motor vehicles employing mechanism for banking the superstructure
IPC: B60G21/04
Filed: 1946-12-06
Abstract: 641,416. Vehicle suspensions; preventing lateral canting. KOLBE, J. Dec. 6, 1946, No. 36180. Convention date, Dec. 15, 1945. [Class 108(ii)] Relates to vehicle suspensions of the kind described in Specification 641.411, which cause the superstructure of a vehicle, when moving in a curve, to bank towards the inside of the curve. According to the present invention, each front-wheel suspension comprises a hinged arm 146, Fig. 7, pivoted to a frame member 240 on an inclined axis 196, corresponding axes meeting in the vertical median plane at a point in front of the said arm; the arm 146 carries, on horizontal pivots, upper and lower wheel-supporting arms 114, 118, the lower having an upwardly-extending arm 172 connected by a link 182 to a spring 162 which is seated on the chassis; the point of interconnection 174 between the arm 172 and link 182 is offset from the axis 196, with the result that the spring 162 is stressed both by movements of the arms 114, 118 in the vertical plane about their horizontal pivots, and by rotation of the lever 146 about the axis 196; it thus serves both as a suspension spring and to restore the banked chassis to vertical position The rear axle 206 is similarly suspended, each end thereof being supported by a lever 202, which is at one end connected to the axle by a universal joint 208 and at its other horizontally pivoted to an arm 216 obliquely hinged to the chassis member 240. Longitudinal and transverse connecting rods 260, 188 ensure that the various suspension arms move in unison about their oblique axes. When the vehicle is driven round a bend, the resulting centrifugal force tends to make the body move transversely relatively to the suspension arms 146, 147, 216, 217; this relative rotation of the arms about their inclined axes makes the vehicle body incline inwardly; when the centrifugal force ceases, the suspension springs, which have been compressed by rotation of the arms, restore the body to its normal attitude. In modifications, the coil springs are replaced by a transverse torsion rod (Fig. 11, not shown), or a rubber torsion spring . (Fig: 12, not shown). The spring actuating arm 172 may be carried by the upper suspension lever. and may project upwardly or downwardly (Figs. 13 and 16, not shown). In another embodiment the hinged arm is dispensed with, and the wheel-supporting levers are connected directly to the superstructure by universal or resilient joints in the manner described in Specification 641,417. In another arrangement for the front wheels, the upper lever 714, Fig. 14, is extended rearwardly to form a spring-actuating arm 740 which bears on a compression spring 742.
Patent GB-1082116-A (GB)
Title: Organopolysiloxane resins and their production
Inventor: BURZYNSKI ALFRED JOHN
IPC: C08G77/06
Filed: 1964-09-03
Abstract: Organopolysiloxane resin prepolymers are produced by heating a hydrolysable methyltrialkoxysilane and a hydrolysable phenyltrialkoxy-silane either together or separately with H2O and, if desired, less than 0.01 mole of an acidic catalyst per mole of silane, concentrating the resultant reaction mixture or mixtures by removing a substantial portion but not all of the volatile components, mixing the two concentrated reaction mixtures if the silanes were hydrolysed separately, and heating the resinous mixture thus obtained at a temperature above but not more than 100 DEG  C. above the b.p. of H2O at the prevailing pressure to precure it.  The prepolymers are cured by heating at a temperature below but not more than 60 DEG  C. below the b.p. of H2O at the prevailing pressure. The reaction mixture may also contain minor amounts of other trialkoxysilanes, of mono- and di-alkoxysilanes and of alkyl orthosilicates. In one example, 11, triphenyl-, trihexyl- and diphenylsilanes are also added.  Fillers such as SiO2, unreactive organosilanes, amine-clay derivatives, clays and asbestos may be added to the reaction mixtures.  The prepolymers may be cast and cured to give machinable, thermoset polysiloxane bodies.
Patent GB-775965-A (GB)
Title: Improvements in or relating to windscreen wipers
IPC: B60S1/38
Filed: 1953-12-30
Abstract: 775,965. Windscreen cleaners. O'SHEI, W. E. Dec. 30. 1954 [Dec. 30, 1953], No. 36253]/53. Class 138(1) A. windscreen wiper comprises at least one flexible strip extending along and assembled to the squeegee element to permit the latter to flex in the plane of the squeegee but to restrain transverse flexing thereof, and at least one yoke disposed along the back of the squeegee element and having its opposite ends connected to the flexible strip, wherein the yoke is of bowed or 'arched form and is flexible, in the plane of the squeege, the ends of the yoke being connected to the strip so that whenever the latter flexes to conform with a portion of a windscreen of increased convex curvature, the ends of the yoke will be moved closer together, the pressure exerted by a windscreen wiper arm on the yoke tending to force its ends apart and thus to urge the flexible strip and the squeegee element to a straight condition. As shown in. the embodiment of Fig. 1, two yokes 1, 1a each comprised of two rigid parts 11, 11<SP>1</SP> and 11a, 11<SP>1</SP>a are respectively integral with the ends of flexible strips 12, 12a provided with fingers 13 to engage in grooves extending along the sides of the squeegee element 4. The parts 11, 11<SP>1</SP> and 11a, 11<SP>1</SP>a are bent inwardly of the ends of the strips and are respectively hinged together by pins 17, 17a which also hinge the yokes to the ends of a bridge piece 6 carried by a wiper arm. If desired the strips 12, 12a may be joined together at their inner ends to form a single strip. Moreover a single two-part hinged yoke connected to the squeegee may serve as the bridge-piece. In the embodiment of Fig. 2 the yokes are each in one piece the central and end portions being channel shaped whilst the remaining portions are flexible. The end portions 21 of the yokes are riveted, as at 26, to ears 25 on pairs of flexible strips 22, which engage in grooves extending along the sides of the squeegee 4. The strip pairs 22 are stamped from a single strip of metal, the outer ends of the strip pairs 22 being connected by transverse portions 23 whilst the inner ends of the pairs are connected by loop portions 24 which fit around the back of the squeegee. Recesses 27 in the strips 22 facilitate the insertion of the squeegee between the strips. More than two yokes may be associated with the squeegee in which case the yokes are connected to secondary yokes in turn connected to the bridge piece. Specifications 666,473, 666,474, 675,849, 683,201, 683,271, 683,675, 775,964, 775,966 and 775,967 are referred to.
Patent GB-1194034-A (GB)
Title: Stand for Sewing Machines
IPC: D05B75/06
Filed: 1967-08-08
Abstract: 1,194,034. Tables for sewing machines. WILLCOX & GIBBS Inc. 8 Aug., 1967 [9 Aug., 1966], No. 36328/67. Heading A4H. [Also in Divisions B4 and D1] A stand supports a sewing machine while permitting adjustment of the sewing machine relative to a table top without disturbing the spacing between the sewing machine and its driving motor. A table top 11 having an opening 12 is secured at its ends to bars (16), 17, each of which is supported by a rear leg 14 and a front leg 15. Legs 14 are interconnected by a rear bar 20 of square cross-section, the flattened ends 20a of which are adjustably secured to legs 14 by bolts 21 passing through vertical slots in legs 14. A bracket 25 is secured non-rotatably to bar 20 by a cooperating bracket 27. A motor 28 is suspended from bracket 25 by a pivot 31 and an adjustable pivot link 32. A plate 35, adjustably secured to the upper surface 25a of bracket 25, extends forwardly under opening 12, and is supported by a front bar 40, which interconnects to the legs 15 and is adjustably secured thereto by bolts 42. Plate 35 supports a sewing machine 13 which projects through opening 12 and is driven from motor 28 by a belt 46.
Patent GB-874216-A (GB)
Title: 3-acyloxy-3-aryl pyrrolidines
IPC: C07D207/12
Filed: 1959-10-27
Abstract: The invention comprises compounds of the formula  <FORM:0874216/IV (b)/1> wherein R1 and R5 are C1-C5 alkyls, R2 and R4 are hydrogen atoms or C1-C5 alkyls and R3 is phenyl, benzyl, tolyl, anisyl or chlorophenyl, and acid addition salts thereof, and the preparation thereof by appropriate acylations and, if desired, conversion of the products into their acid addition salts.  The products are analgesics and can be administered in pharmaceutical compositions.ALSO:Pharmaceutical compositions containing compounds of the formula <FORM:0874216/VI/1> wherein R1 and R5 are C1-5 alkyls, R2 and R4 are hydrogen atoms or C1-5 alkyls and R3 is phenyl, benzyl, tolyl, anisyl or chlorophenyl, or acid addition salts thereof, may be in the form of wafers, capsules, tablets or injection solutions. Acid addition salts specified are hydrochlorides, hydrobromides, hydroiodides, sulphates, phosphates, acetates, citrates, succinates, tartrates and benzoates.
Patent GB-418332-A (GB)
Title: Improvements in vapour generators intended particularly for mercury
IPC: F22B3/02
Filed: 1933-12-28
Abstract: 418,332. Mercury-vapour generators. BRITISH THOMSON-HOUSTON CO., Ltd., Crown House, Aldwych, London.-(Assignees of Coulson, B. P. ; 11, North Church Street, Schenectady, New York, U.S.A.) Dec. 28, 1933, No. 36486. Convention date, Dec. 29, 1932. [Class 122 (iii).] In mercury-vapour generators comprising furnace structures, drums with heating and circulating tubes, and wall-screen heating- elements, heating-units are located below the level of the drums, and the units are connected to the drums by conduits having portions with V-notches, communicating with the drums at points which are above the cold liquid levels in the drums at starting. The boiler drums 12 are connected by equalizing pipes 13 also connected above the cold liquid level at starting. The condensate is supplied to a header 14 connected by conduits 15 to the pipe 13. Liquid heating and circulating tubes are connected to the drums 12. A plurality of heating-units comprising headers 20 arranged outside the furnace wall are arranged below the level of the drums and are connected by conduits 21 to headers 22 connected to the drums and which are empty when cold. The headers 20 comprise inner and outer conduits 28, 29. The conduit 29 has openings 36 and is connected to down tubes 23 located outside the furnace which are connected by tubes 27 and mufflers 27<c> to tubes 24 which extend through the furnace wall and are lined along the inside thereof to form a screen. The tubes pass through copper encased tubes in heating-elements 25, and the upper ends of the tubes in each element 25 are united by single tubes 26 to the outer conduits 29. The tube 21 comprises inner and outer liquid and vapour tubes 33, 32, Fig. 3, connected respectively to tubes 29, 28. The tubes 33, 32 are welded together at the top and are provided with a V-notch. Vapour generated in the wall tubes 26 passes through conduits 28 and tubes 32 to the drums. Tubes 29 are provided with inclined surfaces 37 near the tubes 26 so that the angle of incidence of the liquid is 50‹ or more. The lower headers are made in sections connected by pipes 40 to equalize stresses. The headers at the corners of the furnace are connected by vapour and liquid pipes 43. Modified means for connecting the drums and lower headers for liquid and vapour are described. Where little floor space is available, the capacity of the generator may be increased by increasing its height by providing a plurality of heating units at different heights each with an independent header. Specifications 416,769 and 418,327, [both in Group XXVI], are referred to.