baber/WOPTO huggingface dataset:
Patent GB-1001992-A (GB)
Title: Reinforcement of a settable material with a fibrous material
Inventor: JOSEPH CURT BOAS
IPC: B29C37/00
Filed: 1963-05-10
Abstract: 1,001,992. Rollers. FIBREGLASS Ltd. Aug. 4, 1964 [May 10, 1963], No. 18539/63. Heading F2U. Apparatus for the reinforcement of a settable material, such as polyester resin, with a fibrous material, such as chopped strand glass fibre mat, includes a hollow roller preferably made of metal and provided with perforations for the flow of the resin to the surface of the roller, which is of discontinuous form to permit the escape of air removed from the fibrous material. As shown in Fig. 2, the surface of the roller has annular ribs 5, with radial perforations 3 in the intervening channels 4. In an alternative form, Fig. 1 (not shown), the ribs 5 are helical. In Fig. 6 the roller has perforations 12 and longitudinal ribs 11 which may be continuous or interrupted. The ribs may be integral with the roller body as shown, or detachable, in which latter case they may be of metal or rubber. A number of sections may be secured together axially to form a long roller, and the roller may be tapered or barrel-shaped.
Patent GB-752033-A (GB)
Title: Steroids
IPC: C07J1/00
Filed: 1954-06-24
Abstract: The invention comprises compounds having the formula <FORM:0752033/IV(a)/1> wherein R is hydrogen or methyl and R1 is hydrogen or the acyl radical of an organic carboxylic acid, and the preparation thereof by treating 11b  - hydroxytestosterone or 11b  - hydroxy - 10 - normethyltestosterone with a dehydrating agent and if desired esterifying the 17-hydroxy group.  Suitable dehydrating agents are aqueous hydrochloric acid, aqueous sulphuric acid, hydrochloric acid-acetic acid mixture and p-toluene sulphonic acid dissolved in acetic acid.  Examples describe the preparation of 9-dehydrotestosterone and the 17-propionate, trimethylacetate, benzoate, b -cyclopentylpropionate, cyclopentylformate, cyclohexyl formate, cyclopentylacetate, cyclobutylformate, a  - cyclopentylpropionate, cyclohexylacetate, cyclopropylformate, cycloheptylformate, methylcyclopentylacetate and b -cyclobutylpropionate thereof, and of the corresponding 10 - normethyl - 9 - dehydrotestosterone compounds.
Patent GB-1495273-A (GB)
Title: Acoustic barriers
IPC: E04B2/74
Filed: 1974-04-29
Abstract: 1495273 Sound insulation BESTOBELL AVIATION PRODUCTS Ltd 14 March 1975 [29 April 1974] 18625/74 Heading F2X [Also in Division E1] An acoustic barrier for use, e.g. around machinery, comprises a number of frames, e.g. 2, each with at least three sides (four as shown) to which are attached, along at least two opposed sides, by touch and close fasteners, acoustic shields comprising, e.g. a sheet 15 of flexible glass cloth impregnated with a lead-loaded vinyl and backed with a sheet 16 of urethane foam. As shown, a shield is attached by strip fasteners along three sides, and by hooks 17 along the top, so that the shield swings open when a workman throws himself at the barrier in the direction 18. Adjacent frames are clipped or welded together, e.g. and a right-angled corner frame may be used. A housing may have a ceiling similarly constructed, and the walls thereof may contain sliding doors and/or some shields which are fixed by touch and close fasteners along all sides, which can be blown out in the event of an explosion. Reinforced rubber may be used for the shield, as an alternative.
Patent GB-112966-A (GB)
Title: Improvements in Fractional Distillation.
Inventor: ADAM WILLIAM GORDON
IPC: B01D3/26
Filed: 1916-12-30
Abstract: 112,966. Adam, W. G. Dec. 30, 1916. Hydrocarbons, alcoholic liquids, ethers, &c., distilling.-A plant for continuous fractional distillation consists of three or more stills c, Fig. 1. arranged at different heights so that the liquid runs through them in series under the action of gravity. Each still is surmounted by a fractionating-column c<1>, whence vapours are led to a condenser c<2>, and refluxed liquids are led by a pipe f<1> to be mixed with liquid entering the still by a pipe f. The stills are divided by plates g, shown in plan in Fig. 3, and heating-coils k are provided, so that the liquid and the heating-agent flow by tortuous paths in opposite directions through the stills. Successive stills are heated to successively increased temperatures. The plant is applicable to the distillation of benzene, toluene, xylenes, alcohols, ethers, &c.
Patent GB-229576-A (GB)
Title: Device or apparatus applicable for use in preparing emulsions or mixtures
IPC: B01F7/04
Filed: 1924-08-06
Abstract: 229,576. Allen & Hanburys, Ltd., and King, P. S. Aug. 6, 1924. Rotary batch - mixers; stationary batch - mixers with rotary stirrers. - A machine for making emulsions or mixtures comprises a casing fitted with curved radial arms between which rotate similarly curved arms on a shaft, both sets of arms having transversely projecting tricorn blades which cut through the liquid and throw it in contrary directions to form whirlpools; the casing may be stationary or may be rotated oppositely to the shaft, and the leading sides of the blades are concave the rear side being convex. Fig. 7 shows a portion of the casing e fitted with the arm f, the leading edge f<2> of which is chamfered. The arms extend to the sleeve c on which the similar arms d, Fig. 10, are mounted; these arms extend to the casing. The blades i on the arms d pass between those on the arms f, and all are provided with concave leading sides i<1>, and convex rear sides i<2>. The parts e are formed as concentric rings assembled by means of bolts h, Fig. 2, with or without spacing rings g, between end plates a<1> through which passes the shaft b carrying the arms f. In the form in which the casing is rotated, one of the plates a<1> is furnished with an internally-toothed ring engaged by a pinion gearing with. the shaft.
Patent GB-1330942-A (GB)
Title: Level detector circuits
IPC: G01R19/165
Filed: 1971-06-03
Abstract: 1330942 Protective arrangements WESTERN ELECTRIC CO Inc 3 June 1971 [8 June 1970] 18743/71 Heading H2K A signal level (e.g. high voltage) detector circuit comprises signal comparison means 10 for comparing the magnitude of an input signal, at 11, with that of a reference signal, at 12, means 20 for deriving the reference signal from an energizing source 6, an output stage 40 connected to the comparison means 10, and means 30, 39 responsive to the initial energization of the circuit by the source 6 for inhibiting the operation of the output stage until the reference signal has been established to prevent incorrect operation when the detector is initially switched in. The input signal may be directly applied to a terminal 1 or through a level shift circuit to the terminal 1, the level shift circuit increasing the amplitude of a small signal. Alternatively, when the signal has the opposite polarity to the source 6 it is applied at 3 to an end of a voltage divider 251, 252 connected to the reference voltage source 20, an input voltage signal of the correct polarity being taken from the terminal 4. The reference voltage for the comparator 10 is taken from a voltage divider 202, 203 connected in series with a transistor 103 having its base connected to the junction between a constant current field-effect transistor 101 and an avalanche breakdown diode 133. The comparator 10 comprises two differential amplifier stages connected in series. When the signal on lead 11 exceeds that on lead 12, the amplifier changes its state to reduce the conduction of a transistor 115 in the output stage to a low level. Under this condition a transistor 118 is able to shunt the current away from the base of a transistor 120, which becomes non- conducting. The current through a field effect transistor 119 is now able to render a transistor 122 conducting to provide an output signal to an alarm 60. A latch circuit 50 may provide a feed back signal to the transistor 120 to maintain it non-conducting until a reset switch 170 is operated. During the initial start up period, a field effect transistor 128 draws the current supplied through the transistor 101 and applies it to the base of a transistor 130 which conducts, so inhibiting the operation of the output stage 40. The value of the energizing voltage increases until the diode 133 breaks down and the resulting forward voltage drop across a diode 132 biases a transistor 129 into conduction. This draws base current away from the transistor 130 which ceases to conduct so that the detector becomes operative.
Patent GB-1161914-A (GB)
Title: Nickel-Silicon Alloys
Inventor: WILLIAMS KEITH JUXON
IPC: C22C19/00
Filed: 1967-04-24
Abstract: 1,161,914. Nickel base alloys. INTERNATIONAL NICKEL Ltd. April, 24, 1968 [April 24, 1967], No.18796/67. Heading C7A. A quaternary alloy comprises:- Si 5 -8À5% Ti 1 -5% and Mo 3À5-10%  or Cr 6 -10% or Fe 20 -30% or Co 25 -40% the balance, apart from impurities, being Ni, and has a 0À1% proof stress of at least 40 tonf/sq. inch in the cast state. The alloys may be modified to contain two or more of Mo, Cr, Fe and Co in which case the appropriate minima are:- Mo 0À5% Cr 0À5% Fe 10% and Co 5% and 2(%Mo) + (%Cr) + 1/3(%Fe) + “(%Co) is at least 6 and (%Mo) + (%Cr) + 1/3(%Fe) + “(%Co) is no greater than 10.
Patent GB-1111222-A (GB)
Title: Copolymers of ethylene-vinyl-acetate and norborna-2.5'-diene
IPC: C08F218/08
Filed: 1965-05-05
Abstract: Copolymers of 20 to 79 weight per cent of ethylene, 20 to 79 weight per cent of vinyl acetate and 1 to 20 weight per cent of hydrocarbons of formula <FORM:1111222/C3/1> where R1 and R11 are hydrogen or alkyl groups containing 1 to 5 carbon atoms, are prepared by copolymerizing the monomers at elevated pressure in the presence of a radical polymerization catalyst, the reaction being terminated before complete conversion.  The preferred hydrocarbon is norbornadiene-2,5. Polymerization may be effected in a homogeneous liquid phase, e.g. in excess monomer, t.-butanol optionally containing water in compatible amounts, and hydrocarbons; or in aqueous dispersion. Specified catalysts are lauroyl, acetyl, benzoyl, dichlorobenzoyl peroxides, peroxydicarbonates, azodiisobutyronitrile and molecular oxygen. The polymerization may be stopped by adding crotonaldehyde, or by adding the reaction mixture to excess methanol. Examples describe the copolymerization of ethylene, vinyl acetate and norbornadiene-2,5 in t.-butanol in the presence of azodiisobutyronitrile. The products may be vulcanized.
Patent GB-201187-A (GB)
Title: Improvements in or relating to means for operating the brakes of vehicle wheels
IPC: B60T11/04
Filed: 1923-01-05
Abstract: 201,187. Soc. Anon. des Anciens Etablissements Panhard et Levassor. Feb. 8, 1922, [Convention date]. Brakes, arrangement and disposition of. - Internal brakes for vehicle steering wheels, comprising a split band or shoe, are expanded by the longitudinal movement of a rack coaxial with the spindle on which the wheel is pivoted and so arranged that the actuating-means is not interfered with by the steering movements of the wheels. In the form shown in Figs. 1 and 2, pinions 8 meshing with racks 4 formed on the ends of the band 1 are rotated to apply the brake by a cylindrical rack 10 formed on a stem 11 lying in line with the axis M N, about which the wheel pivots. On rotation of the operating-arm 12, the stem 11 is rotated and moved longitudinally by the engagement of a double helical incline 13 on the part 11 with a corresponding incline on the steering-pivot 15. In a modification, the cylindrical rack 10 is replaced by a pair of racks on opposite sides of the stem, and the rack is moved longitudinally without rotation by the engagement of a pin on the member 11 with a slot in the member 10.
Patent GB-512353-A (GB)
Title: Improvements in or relating to chucks for parts with screw threads
IPC: B23B31/20
Filed: 1938-06-27
Abstract: 512,353. Chucks and sockets. FORKARDT, R. June 27, 1938, No. 19043. Convention date, June 28, 1937. [Class 83 (iii)] A chuck for holding screw-threaded workpieces has jaws with threaded gripping portions which are moved radially for engaging the screw thread and then axially for bringing the work-piece against a flat or conical end surface on the chuck body. In one form the jaws 3, Fig. 2, are capable of sliding radially, in slots in the body 1 and are attached by pins 6 to a sleeve 5 normally pressed outwards by a spring 11 within limits determined by a screw 9 engaging an annular recess 5<1> therein. A central plunger 2 guided within a bore in the body 1 is actuated by a draw-spindle 13 and has bevelled surfaces 2' engaging the jaws. When the chuck is unloaded the plunger 2 and jaws 3 are towards'the right and a spring 12 maintains the jaws collapsed against the surfaces 2' so that an internally screwed article 14 may be placed over the jaws. The draw spindle then moves the plunger 2 to the left and the spring 11 prevents the jaws from moving axially so that they ride along the surfaces 2' until they have been expanded into full engagement with the threads on the work. Further movement of the draw-spindle causes the jaws and plunger 2 to press the end of the work firmly against an end surface 4 on the chuck body whereupon the gripping of the work is complete. In a modified form for gripping externally screwed work a sleeve 2a, Fig. 4, is attached to the draw-spindle 13 and carries bevel-closing slides 2b engaging the jaws 3. A sleeve 5 is pressed by a spring 11 'to engage the jaws through an inclined shoulder 5<1> and force the jaws both axially forwards and' radially outwards against the slides 2b. Forward motion of the jaws is limited by lateral shoulders thereon engaging an annular recess 1<1> in the body 1 and the spring 11 abuts through a ring 7a and pins 7b on a ring 7c. In operation, rearward motion of the draw-spindle moves the slides 2b rearwardly and closes the jaws radially on the threads of the work 14, after which further axial movement of the drawspindle moves the jaws against the spring 11 to press the work against an end surface 4 of the body 1. In another form for gripping externally screwed work a bevelled cap 2, Fig. 6, is attached by a transverse pin 2c to the drawspindle 13 and the jaws 3 are guided radially on a flange 5 pressed forwardly by a spring 11. In the unloaded position springs 12 expand the jaws against the cap 2 and after insertion of the work 14 rearward motion of the draw-spindle moves the cap rearwardly to close the jaws on the work, after which further motion of the draw-spindle moves the jaws against the spring 11 to press the work against the body at 4.
Patent GB-359480-A (GB)
Title: Improvements relating to the preparation of skins for use in articles of clothing
IPC: C14C13/00
Filed: 1930-06-23
Abstract: 359,480. Materials for making clothing. RODMAN, S. E., Woodlands, Chester Road, Woodford, near Stockport, Cheshire. June 23, 1930, No. 19066. [Class 141.] Rabbit skins are prepared with a suede finish on the flesh side and fur on the hair side by the following sequence of operations : fleshing, pickling, shearing the hair to the desired length, tanning, " wheeling the flesh side with an abrasive wheel, dyeing, and dressing with or without a further wheeling. Articles of clothing, e.g. gloves, are made from the skins so prepared with the suede flesh surface on the outside.
Patent GB-254119-A (GB)
Title: Improvements in and relating to pneumatically cushioned tyres
IPC: B60B9/22
Filed: 1925-07-28
Abstract: 254,119. McMullan, R. July 28, 1925. Tyres with rims enclosing air tubes or chambers.-A wheel tyre comprises a pneumatic tube 15, seated in a metal retaining shell 10, and a circumferentially-extending rubber piece 13 adapted to engage under shoulders 11, 12 on the shell 10, as shown. The shoulders 11, 12 are preferably tapered and the tube 15 completely ú lls the space between the shell 10 and the rubber piece 13. A removable tread 14, disposed outside the flanges, covers the rubber piece 13, ,and is sprung into grooves on the upper face of the shoulders 11, 12.
Patent GB-497380-A (GB)
Title: Improvements in or relating to devices for regulating the amount of fuel delivered by fuel injection pumps to internal combustion engines
IPC: F02D1/00
Filed: 1937-07-10
Abstract: 497,380. Speed governors. BOSCH AKT.-GES., R. July 10, 1937, No. 19173. Convention date, July 10, 1936. [Class 57] [Also in Group XXVII] The regulating rack of a fuel-injection pump is connected to a diaphragm 7 fixed to a piston 9 and loaded by a spring 15. The piston 9 is slidable in a casing 6 and its interior is connected by a flexible pipe 10 to the induction pipe between the throttle 13 and the engine. The rack is thus adjusted according to the difference in the atmospheric pressure and the induction pressure. The piston 9 is connected by a lever 20 to a bellows 21 responsive to atmospheric pressure, so that the rack and piston are moved together. A stop 18 limits the maximum adjustment of the diaphragm 7 and the fulcrum of the lever 20 is adjustable by the manually operated lever 23. In a modification a stop comprises a spring mounted between an arm on the rack and a bracket on the casing 6. In a, further modification a piston replacing the diaphragm 7 and working in a fixed cylinder is connected to one end of a lever and the rack to the other end and the bellows 21 to an intermediate point. Fig. 4 shows an induction pipe 12 fed by a blower G and a piston 29 exposed to induction pressure. The piston is adapted to be loaded by springs 15 and 39 opposed to each other, the spring 39 being weaker than the spring 15. Only one. spring operates at the ends of the stroke of the piston 29. The piston is connected by a lever 30 to the rack 4 and a bellows 21 is also connected to the lever 30. The bellows is movable by a lever 35 which may be actuated by a thermostat 41 registering atmospheric temperature or by a lever 45 operated by hand and also determining the position of a valve 46 in the induction pipe.
Patent GB-380870-A (GB)
Title: Improvements in or relating to closures for the filling openings of tanks and other containers
IPC: B60K15/04
Filed: 1931-07-03
Abstract: 380,870. Stoppers. BAKER, C. H., Standard Buildings, City Square, Leeds. July 3, 1931, No. 19174. [Class 125 (iii).] A screwed or other cap for petrol tanks &c. is provided with an adjustable opening 9 of the iris-diaphragm type, operated by a rotating ring 5, which is lightly held in its extreme positions by a spring-pressed ball 16 engaging recesses 20. One of the plates of the diaphragm may have an extension covering the centre of the diaphragm when closed.
Patent GB-754600-A (GB)
Title: Improvements in or relating to stators for single-phase induction motors
IPC: H02K17/10
Filed: 1954-06-30
Abstract: 754,600. Induction motor core and shading coil il constructions. PHILIPS ELECTRICAL INDUSTRIES, Ltd. June 30, 1954 [July 3, 1953], No. 19174/54. Class 35. A single-phase two-pole induction motor stator for e.g. a gramophone or a magnetic recording and reproducing apparatus has the inner surface of each pole I and II formed with at least five equispaced and of substantially equal circumferential length teeth 1 ... 5 and 6 ... 10 of which the first and diametrically opposite tooth 1 and 6 of each pole is unshaded, each last tooth 5 and 10 of each pole is encircled by a separate shortcircuited shading coil 17, while on each pole all teeth except the first and last are encircled by short-circuited shading coils 13 ... 15 which are connected to one another; furthermore one magnetic shunt 18 is provided between the first tooth 1, 6 of each pole and the last tooth 10, 5 of the other pole, and another magnetic shunt 16 is provided between the said first tooth 1, 6 and the penultimate tooth 9, 4 of the other pole, which shunts 16 are disposed radially outside the shading coils 17 on the last teeth 10, 5. This construction is to improve the symmetry of the magnetic field and the uniformity of the speed of rotation, and maximum freedom from vibration of the rotor not shown may be provided by equalizing the field strengths in the air gaps between the teeth and the rotor by varying the length thereof, i.e. shortening some teeth, e.g. 8 ... 10, in the radial direction, in relation to teeth 6 and 7. The coils 13 ... 15 comprise wires seen as circles lying in axial slots on opposite sides of each tooth and'joined together by a connecting wire at each end of the core 11, and the windings 13, 14 and 17 are of a gauge suitable for producing the required phase displacement of the magnetic flux in their respective teeth. In Fig. 3, not shown, each pole alternatively has six teeth, and in a modification the stator core alternatively may be of the shell type having two field cores, one on each side of the stator. U.S.A. Specification 2,467,755 is referred to.
Patent GB-569773-A (GB)
Title: Improved method and means for forming substantially right angle flanges on blanks ofsheet material by pressing
IPC: B21D22/10
Filed: 1943-11-17
Abstract: 569,773. Flanging. TURNBULL, J. S., and METROPOLITAN - VICKERS ELECTRICAL CO., Ltd. Nov. 17, 1943, No. 19199. [Class 83 (iv)] In flanging, by stamping, the edges of sheet material such as aluminium alloy, at least one edge being curved the blank is supported initially between frames resiliently supported so that during flanging by means of a rubber bolster the sheet is dragged from between the frames, and pressed on a former, the frames acting as draw rings. When the flanges are to be at right angles to the sheet the edges of the former are somewhat undercut to compensate for the resilient spring- back. The former 5, Fig. 2, has its edges undercut as shown at 5a and is integral with or supported by a base block 6 itself supported by a supplementary plate 7 on the press plate 8. The sheet 1 is located between lower and upper frames 2, 3 dowelled together at 4 and supported by rubber blocks or helical springs 2a located in holes in the plate 7. Fig. 3 shows. the action of the rubber bolster 9 on completion of the operation and Fig. 4B shows the flange 10a sprung away from the surfaces 5a on release from the press. The plate 7 is provided with numerous holes 7a, those not wanted for the springs 2a, or for the reception of guide pins 11 on the lower frame 2, being closed by covers 7b drilled and tapped for screwpins 6a by which the block 6 may be located. The former 5 may be mounted by lugs 5b received in recesses 2b in the lower frame 2 and it is provided with holes for location of the blank 1 by means of headed pins 1x. The parts 7, 5 and 3 may be made of resinated fabric, and the top surface of the frame 3 is rounded to reduce the wear on the rubber bolster. The opening in the frame 3 is slightly larger than that in the frame 2 so that on upstroke of the press the edge of the opening in the frame 2 may engage the flange on the work and enable the springs 2a to strip the work and frictionally hold frame 5 for separation outside the press. Where the flange is required to be at an angle somewhat greater than a rigHt angle the upper frame 3 is divided longitudinally to permit separation so that the expanded flange may pass through ; to permit this the dowel pins engage holes in rubber inset bushes. To prevent a tendency to buckle, the surface of the base block 6 is slightly dished. The formation of a crescentshaped blank with flanges on its inner and outer curves is illustrated. Reversible parts arranged for producing components of opposite hand are described.
Patent GB-406559-A (GB)
Title: Apparatus for lowering coffins into graves
IPC: A61G19/00
Filed: 1933-07-06
Abstract: 406,559. Hooks. SCHUFFNER, H., Ebersgr³n, near Pausa, Germany. July 6, 1933, No. 19204. Convention date, Dec. 24, 1932. [Class 89 (ii).] The Specification as open to inspection under Sect. 91 describes an automatically releasable fastening for coffin lowering ropes comprising a spring-retracted pin p engaging a forked block q and an eye in the rope extending into the fork ; the eye engages a groove r in the pin, but when the rope is slackened a spring on the pin shank retracts it through the eye. This subject-matter does not appear in the Specification as accepted.