baber/WOPTO huggingface dataset:
Patent GB-1147400-A (GB)
Title: Differential pressure forming apparatus
IPC: B29C33/20
Filed: 1967-06-07
Abstract: 1,147,400. Sheet forming. BROWN MACHINE CO. OF MICHIGAN Inc. 7 June, 1967 [16 June, 1966], No. 26309/67. Heading B5A. In a pressure forming apparatus, a sheet 12 is plunger assisted blow or vacuum moulded between mould parts 3 and 8, the parts being forwarded into initial engagement with the sheet by rams 5 and 11 and then clamped more firmly against the sheet by an auxiliary clamping device. The auxiliary device comprises a series of rotatable spindles 16 located along the edges of the upper mould carrying plate 10, each spindle carrying at its lower end, cam followers 24 adapted to be inserted into correspondingly located socket members 30 carried by the lower mould carrying plate 2. Each member 30 is provided with a slotted upper plate 32 provided on its underside with acurate sloping cam surfaces 36. In operation during the initial ram actuated stroke of the machine the followers are inserted into the sockets, after which the spindles are rotated to cause the followers to ride along the surfaces 36 thus pulling the plates 10 and 2, and consequently the mould halves, closer together to apply the final clamping pressure.
Patent GB-850054-A (GB)
Title: Improvements in or relating to circular polarisers for electro-magnetic waves
Inventor: WALDRON RICHARD ARTHUR
IPC: H01P1/17
Filed: 1957-08-20
Abstract: 850,054. Waveguides. MARCONI'S WIRELESS TELEGRAPH CO. Ltd. May 28, 1958 [Aug. 20, 1957], No. 26320/57. Class 40(8). Circularly-polarized wave energy is produced by means of a waveguide section loaded by an axially-polarized soft-ferrite element whereby propagation of waves circularly polarized in only one sense is possible. The soft-ferrite element 1 is spaced from the sides of the circular waveguide section 2 by means of a dielectric substance 3 which may be a hard ferrite or may be air. The dimensions of the section 2 in the vicinity of the element 1 are such that the section would be below cut-off at the frequency utilized if it were completely filled with the dielectric 3. By means of a permanent magnet (e.g. the filling 3, where this consists of hard ferrite) or a solenoid 5, an axial magnetic field is set up in the soft-ferrite element 1 which becomes anisotropic in the sense that waves circularly polarized in opposite directions have different phase constants within the element. Fig 4 shows how the phase constant B for waves polarized in a certain sense varies with the ratio of the radius b of the guide section 2 to the radius a of the soft-ferrite element 1. The curves B and D respectively, and A and C respectively, relate to right and left-hand senses of polarization and are plotted for different sets of values of magnetic field and relative permittivities of the loading elements 1, 3. It can be seen from the form of the curves B and D that a set of parameters may be chosen such that within the range of values Q to Q<SP>1</SP> of b/a only waves polarized in the right handed sense will have a positive phase constant. The apparatus includes means 13 for launching a plant-polarized wave within guide section 9. Such a wave may be resolved into two components, circularly polarized in opposite senses, and only the righthanded one is propagated through the loaded guide section 2. Since the "sense" of rotation of the wave is defined relative to the direction of the magnetic polarizing field, it is possible to reverse the direction of rotation of the propagated wave as seen in the direction of propagation by reversing the magnetic field. The power transmitted by the device is a function of the magnetic field strength and, accordingly, it may be used as an attenuator or modulator by suitably controlling the current in the solenoids 5. By reducing the field to zero it is possible to prevent propagation altogether.
Patent GB-1010059-A (GB)
IPC: C07H15/04
Filed: 1962-07-09
Abstract: The invention comprises: (a) compounds of the general formula <FORM:1010059/C2/1> wherein R1 represents an oxygen atom, R2 represents a hydrogen atom or a methyl radical, and R3 represents a hydrogen atom or, when R2 = CH3, an acetyl radical, or wherein R1 represents a sulphur atom, R2 represents a phenyl, benzyl or ethyl radical or an alkyl radical of more than 3 carbon atoms, and R3 represents a hydrogen atom or, when R2=C2H5, an acetyl radical; (b) the preparation (in crude form) of the compound in which R1=O and R2=R3=H (i.e. 3-C-hydroxymethyl-3,5-didesoxy -L-lyxofuranose) by reducing an aqueous solution of 3-C-hydroxymethyl-3,5-didesoxy-L-lyxono-q -lactone with sodium amalgam while maintaining the pH of the reaction medium within the range 2 to 6, or with sodium borohydride while maintaining the pH of the reaction medium within the range 2-4; (c) the preparation of the compounds in which R1=S1 R2=phenyl, benzyl or alkyl or more than 3 carbon atoms, and R3=H, by reacting the product of (b) with a compound R2SH and hydrochloric acid; (d) the preparation of the compound in which R1=S, R2=C2H5 and R3= acetyl, by reacting the product of (b) with ethyl mercaptan and hydrogen chloride and then acetylating the product; (e) the preparation of the compound in which R1=O, R2=CH3 and R3=acetyl, by reacting the product of (b) with methanolic hydrogen chloride and then acetylating the product; and (f) the production of purified 3-C-hydroxymethyl-3,5-didesoxy-L-lyxofuranose by demercaptalating a product of (c) with mercuric chloride and mercuric oxide, or deacetylating the product of (d) with barium methoxide and then demercaptalating the product with mercuric chloride and cadmium carbonate, or deacetylating the product of (e) with barium methoxide and then demethylating the product with hydrochloric acid.
Patent GB-1216022-A (GB)
Title: Wall covering elements
Inventor: KENNEY MICHAEL JOHN
IPC: E04F13/08
Filed: 1968-06-04
Abstract: 1,216,022. Laminates; moulding building elements. DUNLOP CO. Ltd. 3 June, 1969 [4 June, 1968], No. 26380/68. Addition to 1,162,161. Headings B5A and B5N. [Also in Division C3] A wall-covering element (e.g. a tile) comprising a core portion comprising a mixture of a particulate filler material and a resinous binder, and provided with a facing layer and a backing layer as set out in the main parent Specification is modified in that at least one of the sides of the core of the wall-covering element remains uncovered or only partly covered by the facing and backing layers.
Patent GB-151841-A (GB)
Title: Improvements in and relating to suspenders or hangers for photographs, cards, pictures and the like
IPC: A47G1/16
Filed: 1919-10-28
Abstract: 151,841. Fry, E. B. Oct. 28, 1919. Pictures &c., hanging on walls. - A suspender for photographs, cards, pictures, &c. comprises a wire loop attached to the photograph mount or the like by a circular piece of linen, paper, or other flexible material coated with adhesive. The loop 1 is secured to the circular piece 3 of linen &c. within its edge in the manner shown. Specification 8348/02, [Class 89, Nails &c.], is referred to.
Patent GB-421010-A (GB)
Title: An improved reversible latch bolt for rim and mortice locks
IPC: E05C1/16
Filed: 1933-09-27
Abstract: 421,010. Sliding latches. LEGGE, J. E., Delamere, Newbridge Avenue, Wolverhampton, and LEGGE & CO., Ltd., J., Stafford Street, Willenhall, both in Staffordshire. Sept. 27, 1933, No. 26563. [Class 44] A latch comprising a head D integral with or riveted to a lath E is shot by two coil springs G bearing against lugs a, bent out from the casing, and wings f on the lath, the springs being supported by rearward extensions j<1> of the wings f. The extensions f<1> slide between pairs of lugs a to guide the bolt and are arranged in the mid plane of the bolt head to render the latch reversible.
Patent GB-191448-A (GB)
Title: Improvements in or relating to water tube boilers
IPC: F22B37/10
Filed: 1921-10-08
Abstract: 191,448. Spearing, K. A. Oct. 8, 1921. Plates, jointing tubes to.- In a method of mounting tubes. in opposed tube-plates, particularly in water - tube boilers, one end of the tube 6 is shaped so as to enter the hole in one tube-plate by a pivotal and sliding movement and when in position to contact the hole all round the circumference. The spherical end 7 of the tube 6 fits the hole 5 in the tube-plate 5, being introduced into the hole 5 by a pivotal and sliding movement to clear the other tube-plate. When positioned, both ends of the tube are expanded or belled. The hole 5 may be enlarged as at 10. To facilitate expanding, the end 7 may be corrugated.
Patent GB-254934-A (GB)
Title: Improvements in or relating to covers or closure members for use in connection with electric switches and other electric accessories and to the manufacture thereof
IPC: H02G3/14
Filed: 1925-10-27
Abstract: 254,934. Crabtree, J. A. Oct. 27, 1925. Ornamental metalwork. - Ornamental covers for electric switch &c. boxes comprise a member b of thin gauge metal which is adapted to be stamped, pressed or otherwise formed with the desired ornamentations and then combined with a backing or supporting member a of thick gauge metal adapted to bear the stresses which are imposed in fixing the cover in position. The two members may be secured together by soldering, riveting &c., and the ornamental plate b provided with a flange d which extends around the periphery of the supporting plate a. Both plates may be provided with a central perforation g so that the cover may be clamped on over the outstanding ring of a tumbler switdh, the members a and b being secured together by soldering around their junction f within the aperture g and around the junction e at the rear of the flange d.
Patent GB-1285553-A (GB)
Title: Improvements in or relating to rotary fabric printing machines
Inventor: BARROS ALMERINDO JAMIE CORREIA
IPC: B41F15/08
Filed: 1968-06-05
Abstract: 1285553 Rotary printing machines A J C De O BARROS 5 Sept 1969 [5 June 1968] 26866/68 Heading B6C A rotary fabric printing machine in which printing units are congregated Fig. 1 around a common impression cylinder 11, Fig. 1, has means whereby the units may mount copper relief imaged plate cylinders 12 on rotary stencil cylinders 25, Fig. 3. The drive to the machine is through a crown wheel 15 mounted concentrically with the impression cylinders engaging associated pinions 16 mounted with the printing units and the machine also incorporates gear means or sprocket and chain means whereby when the units are fitted with the stencil cylinders such cylinders are synchronously rotated. The plate cylinder may be as shown in Fig. 2 with an imaged upper shell 19 mounted on end cones 15 and 18. Manual or hydraulic means 22 are used to urge the cylinder 12 against the cylinder 11.
Patent GB-217497-A (GB)
Title: Improvements in phonographs
IPC: H04R23/00
Filed: 1923-10-26
Abstract: 217,497. Seiffert, G. Oct. 26, 1923. Pneumatic relay sound-boxes; tool arms and mountings.-A pneumatic relay sound-box of the kind having a fixed grating and a movable grating operated by the stylus bar, has the two gratings made of different non-corrodible materials. Preferably the fixed grating is of german silver and the movable one of aluminium. The sound-box shown comprises a chamber 7 for compressed air supplied by a pipe 9 and filtered by a screen 31, a fixed grating 17 and a movable grating 19 carried by the stylus bar 5. The stylus bar mounting comprises a spring 10, fixed to the bar, and bearing against fulcrum points 20 on the box. The spring has laterally extending end pieces 12 clamped to the sound-box by caps 14 and screws 15, and a lateral tongue 11 engaging a screw 21 by which the tension is adjusted.
Patent GB-1383176-A (GB)
Title: Print pastes useful for printing fibrous material
IPC: C09B67/46
Filed: 1972-06-09
Abstract: 1383176 Print pastes BADISCHE ANILIN- & SODA-FABRIK AG 9 June 1972 [11 June 1971] 26938/72 Heading D1B Print pastes comprise an oil in water emulsion, a pigment, a thickening agent, a pigment binder and an emulsifier the emulsifier being 0.1 to 1.5% by weight (based on the finished print paste) of di (α-phenylethyl)-phenol which has been oxyethylated from twelve to sixteen times preferably fourteen or fifteen times. The binder may be copolymers of monomers e.g. vinyl propionate, acrylic esters, methacrylic esters, and butadiene, optionally a defoaming agent may be present, conventional thickeners are employed and the pastes are obtained by mixing the ingredients. Mineral spirit and gasoline are used to form the emulsion. The pastes are used for pigment printing of cotton, staple fibre and other natural and synthetic fibres.
Patent GB-669148-A (GB)
Title: Bobby pin
IPC: A45D8/14
Filed: 1949-10-20
Abstract: 669,148. Hair pins. GAYLORD PRODUCTS, Inc. Oct. 20 1949. [Jan. 21, 1949] No. 26977/49. Class 131. [Also in Group XXII] A hair grip bent up from resilient heattreated wire to form two legs 7, 8 connected by a loop 6 has the legs 7, 8 resiliently pressed together when closed. The pressure between the legs may be obtained by compressing the outer surface 14 of the formed loop 6. by shotblasting. The grip may be finally japanned. The wire may be round, oval or half round in section and the legs may be of gradually increasing width and decreasing thickness, one leg 7 being crimped.
Patent GB-769198-A (GB)
Title: Improvements in sound recording and reproducing machines, more particularly those inwhich a spool of tape is the recording medium
IPC: G11B25/06
Filed: 1953-10-02
Abstract: 769,198. Sound film or tape apparatus. CRAMPIN, H. Oct. 1, 1954 [Oct. 2, 1953], No. 27002/53. Class 40 (2). An apparatus for increasing the playing time of a tape record machine comprises detachable means enabling larger diameter spools to be employed. The means comprise a beam A carrying freely rotatable turntables T carrying large diameter spools S driven by belts V from pulleys P mounted on the spindles of a record machine normally carrying conventional size spools. The record tape may be provided with multiple tracks which are recorded or read by heads arranged in staggered formation, the appropriate head or heads being switched into operation when the tape is reversed triggered by an electrically conducting strip in the tape.
Patent GB-945168-A (GB)
Title: Improvements in or relating to fuel injection systems for internal combustion engines
IPC: F02D41/30
Filed: 1960-08-04
Abstract: 945,168. Electric correspondence control systems. ROBERT BOSCH G.m.b.H. Aug. 4, 1960 [Aug. 8,1959], No.27031/60. Addition to 944,148. Heading G1N. [Also in Division F1] The duration of the fuel injection time for an I.C. engine is controlled by a transistor, monostable, relaxation oscillator in accordance with the degree of vacuum in the inlet manifold, as measured by a choke with an armature mechanically coupled to a bellows system sensitive to the inlet manifold pressure. As shown (Figs. 5,6) the choke winding 53 and E-shaped core 52 are mounted in a casing 110, with an I-shaped armature 54 attached to a lever 111 and plate 116, resting in a knife edge bearing 113. The armature 54 is biased by springs 117 to rest on the core 52, against the pressure produced by a group of bellows 121-124, of which 124 is connected by pipes 128,131 to the inlet manifold, and the others are filled with air. The space in the casing 110 containing the bellows and the coil is filled with air reaching up to the bore 137. Under normal high speed conditions, the oil pressure on lever 111 forces the armature 54 to rest on the core 52, giving maximum inductance and maximum fuel injection time. When the speed is reduced the air pressure in the inlet manifold declines and the bellows assembly 121-124 forces the lever 111 to move the armature 54 away from the core 52,thereby decreasing the inductance and the fuel injection time. The link 128 between the bellows 124 and the inlet manifold enables the armature 54 to respond more rapidly to alterations in the throttle valve position. The inductance of coil 52 is also slightly modified by a magnetic plate 161 controlled by a piston 155 in accordance with the temperature of the cooling water circuit of the engine, as measured by a thermostat 146.
Patent GB-703122-A (GB)
Title: Improvements relating to winding machines for "brass bobbins"
IPC: B65H67/04
Filed: 1951-11-20
Abstract: 703,122. Winding bobbins. BODEN & CO., Ltd., and NEEDHAM, R. S. Nov. 19, 1952 [Nov. 20, 1951], No. 27142/51. Class 120(2) In a winding machine for "brass bobbins," i.e., the bobbins commonly employed in the making of plain net or lace, a carrier 25 for a number of bobbinspindles is operated in a succession of intermittent movements of limited extent by driving mechanism whose actuation is controlled by an automatic measuring device, the movement of the carrier taking one spindle of bobbins. out of the winding position and to bring about the feeding of threads on to the bobbins of a fresh spindle which is brought by the movement of the carrier into winding position. As shown, the carrier 25 for groups of bobbins arranged on spindles 26 is driven intermit. tently through a geneva motion 21, 22 motivated by an electric motor 11 through a reduction gear 12 and worm and wormwheel 18, 19 the groups of bobbins on their spindles being fed down a shoot 30 and loaded into bearings 39 of the carrier 25 by a rotary member 31, 32 operated through chain and sprocket gearing from the carrier. The carrier 25, moving anticlockwise in Fig. 1, brings each group of bobbins to the uppermost point of its travel, where threads passing through separating reeds 40, 41 (one thread to each bobbin) are wound upon the bobbins, the rotation of the bobbins, in this position, being effected by an electric motor 45 operating through a magnetic clutch 46, 47. The motors 11, 45 are controlled by a measuring device 48 which can be set to operate after any desired length of thread has been wound. The device 48 is wired to a solenoid type switch 49 so that when the contacts 48a of the measuring device close, the switch 49 breaks the circuit to the motor 45, de-energizes the clutch 46, 47 and closes the circuit to the motor 11. The device 48 has a pivoted trigger 51 operated by cams 52 on the carrier 25, through a flexible cable 54 and lever 53, to re-open the contacts 48a to stop the motor 11 and re-start the motor 45, at the same time resetting the'device 48 to zero. As the wound bobbins are carried forward towards the discharge point 62, a cam 55, through a weighted rod 56 rocks a lever 58 to move a knife 60 to cut the threads from supply as these are taken up by the next group of bobbins.
Patent GB-866451-A (GB)
Title: 3-chloro-2,3-dihydrothiophene-1,1-dioxide
IPC: C07D333/48
Filed: 1957-08-28
Abstract: The invention comprises 3-chloro-2,3-dihydrothiophene-1,1-dioxide and the preparation thereof by mono-dehydrochlorinating 3,4- dichlorotetrahydrothiophene- 1,1- dioxide, preferably in an alkaline medium.  In examples (1) the dehydrochlorination is effected by refluxing in aqueous sodium carbonate; and (2) calcium carbonate replaces the sodium carbonate of (1). Specification 866,450 is referred to.ALSO:Herbicidal compositions contain 3-chloro-2,3-dihydrothiophene-1,1-dioxide as an essential active ingredient, and a diluent or carrier.  The compositions may be in the form of powders, granules, solutions, concentrates or slurries and they may include other diluents, fillers, extenders, conditioners and solvents such as clays, diatomaceous earth, talc, alumina-silica materials, water, kerosene, acetone, benzene, toluene, xylene and other petroleum distillate fractions or mixtures thereof.  They may also include wetting, emulsifying or dispersing agents such as alkyl aryl poly-ether alcohols.  An example diocloses an aqueous emulsion of the active compound containing acetone as the solvent and Triton X155 ("Triton" is a Registered Trade Mark) as emulsifying agent. Specification 866,450 is referred to.ALSO:Parasiticidal, e.g. nematocidal and herbicidal, compositions contain 3-chloro-2,3-dihydrothiophene-1,1-dioxide as an essential active ingredient and a diluent or carrier.  The compositions may be in the form of, for example, powders, granular formulations, liquid solutions, concentrates or slurries and they may include other diluents, extenders, fillers, conditioners and solvents such as clays, diatomaceous earth, talc, spent catalyst, alumina-silica materials, water, kerosene, acetone, benzene, toluene, xylene and other petroleum distillate fractions or mixtures thereof.  They may also include wetting, emulsifying or dispersing agents such as alkyl aryl poly-ether alcohols.  An example discloses an aqueous emulsion of the active compound containing acetone as solvent and Triton X155 ("Triton" is a Registered Trade Mark) as emulsifying agent. Specification 866,450 is referred to.
Patent GB-693882-A (GB)
Title: An improved tyre lever
IPC: B60C25/02
Filed: 1951-11-20
Abstract: 693,882. Tyre levers. HACKETT, N. H. Nov. 20, 1951 [Nov. 30, 1950], No. 27155/51. Class 144 (i). A tyre-mounting tool comprises a hand lever 16 pivoted at one end of a member 10, the other end of which is fitted with a yoke (or collar) 12 to straddle the axle 35 of a motor-cycle wheel 34, Fig. 2, and a lug 13 to engage one of the boltholes 31, Fig. 3, in a car &c. wheel. For adjusting the operative length of the member 10, the connections thereto of the lever and yoke may consist of right-and-left threaded bolts; or, the yoke element may be outwardly thrust by means of a spring-loaded plunger. The operative end of the lever may be formed with serrations &c. 23 to grip the tyre-bead 21; and, a foot-plate 26 may be provided on the lever for forcing the bead over the rim-edge.
Patent GB-1138095-A (GB)
Title: Centrifugal and face contact seal
IPC: F04D29/14
Filed: 1967-06-13
Abstract: 1,138,095. Shaft seals. WORTHINGTON CORP. 13 June, 1967 [27 July, 1966], No. 27244/67. Heading F2B. Sealing means for the shaft 2 of a centrifugal pump comprises an axially movable stator 26 which, when the shaft is stationary or rotating slowly, is urged by a spring 33 into sealing contact with a rotor 45 on the shaft and, when the shaft speed exceeds a predetermined amount, is moved out of contact with the rotor by the fluid pressure differential across the stator, leakage of fluid pressure along the shaft then being opposed by pressure created by impeller blades 47 on the rotor 45. The stator carries a sealing ring 43 and is slidably sealed by 0-rings 27, 28 in a recess 25 in a stationary element 104 which divides a seal chamber 105 into an inner chamber 106 and an outer chamber 107. Axial passages 35 in the stator connect the inner chamber 106 with a chamber 34 formed between the stator and the bottom of the recess 25. Further rotors 60 and 80 separated by a fixed member 70 are housed in the outer chamber 107, the rotor 60 having segmented blades 66 co-operating with ribs 73 on the member 70 and the rotor 80 having blades 83. Cooled and filtered fluid is supplied from a source (100, Fig. 1) to the chamber 107 via a conduit 96 and passage 95. The rotors 45, 60 and 80 are keyed to the shaft 2 by a key 63. When the shaft is at rest the stator 26 is urged to the left by the static fluid pressure forces acting on its end faces 36 and 37 and by the spring 33 so that the ring 43 is in sealing contact with the rotor 45. When the pump is started the pressure at the eye 49 of the impeller formed by the blades 47 and thus the pressure in the chamber 34 decreases with shaft speed until at a predetermined speed (which is less than the normal running speed) the pressure force acting across the stator is reversed and overcomes the spring 33 so that the stator is moved to the right as shown in Fig. 3. Leakage of fluid through the gap between the ring 43 and the rotor 45 is opposed by fluid pumped by the rotors 60 and 80 from the chamber 107 to the impeller eye 49 and, assisted by the blades 47, to the chamber 106.