baber/WOPTO huggingface dataset:
Patent GB-1455041-A (GB)
Title: Delta modulator
IPC: H03M3/02
Filed: 1974-06-28
Abstract: 1455041 Delta modulation MOTOROLA Inc 28 June 1974 [19 July 1973] 28843/74 Heading H3H A delta modulation encoder includes a band pass filter 22 in its feedback loop, the pass band of which matches the frequency band of the analogue input signal. The clock frequency is at least twice the highest frequency in the band. The filter may as shown in Fig. 3 comprise an underdamped high pass filter cascaded with a low pass filter. Alternatively the arrangement shown in Fig. 4 may be used, the R-C phase compensation circuits 58, 60 keeping the overall phase-shift of the filter to within  180 degrees to avoid undesired instability.
Patent GB-1505474-A (GB)
Title: Arrangement for controlling a compressed air-brake according to the vehicle load
IPC: B60G11/12
Filed: 1976-06-12
Abstract: 1505474 Measuring vehicle load WERKZEUGMASCHINENFABRIK OERLIKONBUHRLE AG 12 July 1976 [26 Aug 1975]  28859/76 Heading G1N [Also in Division F2] A load gauge 19 for varying the braking effect on a rail vehicle in proportion to the load is mounted between two yokes 18, 20, one being attached by chain links 13, 15 to the vehicle leafspring, and the other being pivotally mounted at 21, to a hanger 16 on the vheicle body. The two yokes are connected by tongues 23 and grooves 24 so that they are both swingable about the pivot 21. The pivot 21 may extend into slots in the yoke 18 so that it may rest in the bottom of the slots if the load gauge is removed.
Patent GB-825027-A (GB)
Title: A method and a device for measuring the wall thickness of articles made of ferromagnetic materials
Filed: 1957-09-13
Abstract: 825,027. Electric tests. HAVELKA, F. Sept. 13, 1957 [Oct. 25, 1956], No. 28885/57. Class 37. [Also in Group XL (c)] In apparatus for determining the thickness of ferromagnetic materials, e.g. the pipe systems of steam boilers, the phase of a magnetizing alternating field is compared with that of the magnetic field induced in the material. It is stated that the magnitude and phase of the field is influenced by the eddy currents and that the phase shift is an indication of the material thickness. As shown, Figs. 2 and 3, the specimen 9 the thickness of which is to be determined, is included in the magnetic circuit of a yoke 7 of transformer stampings energized at low frequency by means of coil 8. Between the poles of the electromagnet is a screening cover 5 and inside the screen is a flux detecting device 6 (v.i) arranged close to the specimen surface so as to respond to the field of the specimen. The output of device 6 is a high-frequency signal supplied by source G2 (Fig. 3) and modulated at the frequency of energization of coil 8. The coil output is amplified at Z1 demodulated at D, and fed to an amplifier Z2 tuned to the low frequency where its phase relative to that of the magnetizing field is measured at F and indicated at U. Device U is calibrated in terms of tube thickness. Flux detector (Fig. 1).-Glass tubes 1 each contain a bar of Permalloy and have wound on them coils 3 in opposite directions. When an alternating current is supplied to these coils there is no pick-up in coil 4. If the device is placed in a magnetic field a double-frequency E.M.F. is induced in winding 4 due to saturation of the Permalloy cores. In the application shown in Figs. 2 and 3 a D.C. polarizing field is necessary which may be provided by permanent magnets 12 or battery E feeding a D.C. current through windings 3. Phase comparison circuit (Fig. 4).-The rectified and demodulated A.C. output is applied between the grid and cathode of triode E1 which has a high resistance R1 in its grid circuit. The resistance has the effect of cutting off the positive-going grid pulses so that the valve current corresponds to zero grid potential while the negative pulses are fed direct to the grid but cut off the valve current. The valve current is shown at i (Fig. 5). A transformer, the primary of which is in the anode circuit, produces pulses e 1  which are applied in opposition to the alternating signal from the flux generator G1 to diode D1. To this alternating signal is added a unidirectional voltage of such value that e 2  (Fig. 5) never drops to zero. As soon as the peak amplitude is greater than the instantaneous value of the A.C., diode D1 conducts. The drop across resistor R2 is integrated at C, R4, fed through cathode follower E and indicated on meter U fed from a preset potentiometer slider. The reading of U is an indication of the instant in the cycle that D1 conducts and therefore of the phase relationship of the two A.C.'s.
Patent GB-927724-A (GB)
Title: Improvements in or relating to boxes
Inventor: GULLIVER CHARLES RONALD
IPC: B65D5/18
Filed: 1960-08-22
Abstract: 927,724. Non-reclosable boxes; packages. MARDON, SON & HALL Ltd. July 14, 1961 [Aug. 22, 1960], No. 28941/60. Classes 18 and 94(1). A rectangular non- reclosable box of cardboard bent up from a single blank comprises wing pieces 7 at opposite edges of an open face, a closure panel 8 with extensions 10 to correspond to wing pieces 7 is hinged to another of the edges, and when the box is erected the wings are bent outwardly so that the wings 7 and the extensions 10 lie face to face and are secured together. Closure panel 9 lies face to face and outside panel 8, the edges of panels 4 and 6 abut together and panels 3 lie outside panels 4 when the box is erect. The box may be lined with heat sealable material whereby the wings and lapping parts of the box may be secured together.
Patent GB-1520641-A (GB)
Title: Process and device for preparing ignitable fuel mixtures
IPC: F02M9/06
Filed: 1975-07-10
Abstract: 1520641 Fuel preparation apparatus; treating charge HOECHST AG 10 July 1975 [30 Oct 1974]  29053/75 Headings F1B and F1H A process for preparing combustible mixtures of gases for I.C. engines, comprises admixing air with a fuel consisting of a saturated monohydric alcohol having 1 to 4 carbon atoms or a mixture of such alcohols and optionally petrol, such admixing being effected by passing air over a metering device as shown in Fig. 1 having at least two bores 11, 12, each bore being provided with an associated needle 6, 7 moved by a common piston 8, and at least one of the bores being closable by a further valve e.g. 5. The fuel may be methanol and hot exhaust gas may be added to the fuel air mixture dependent on manifold vacuum via valve 27 Fig. 2, the valve being locked closed by electromagnetically actuated pin 29 for starting. The arrangement of Fig. 1 may be used for dual fueling, both needles being used for methonal and only needle 7 for petrol, valve 5 closing bore 11. Petrol/methonal mixture may be used by using valve 5 as a metering device.
Patent GB-1398421-A (GB)
Title: Sulphosuccinate derivatives for use as detergent builders
IPC: C07C309/17
Filed: 1972-06-21
Abstract: 1398421 α-Substituted-#-sulphosuccinic acids UNILEVER Ltd 21 June 1972 [25 June 1971] 29057/72 Heading C2C [Also in Division C3] The invention comprises α-substituted-#- sulphosuccinic acids of formula and their alkali metal, ammonium and substituted ammonium salts where R is C 1-30  alkyl or hydroxyalkyl or C 2-30  alkoxyalkyl, phenyl, carboxy or mono-, di- or tri-alkyl substituted phenyl wherein each alkyl group is C 1-4 ; sulpho- or carboxy-alkyl where the alkyl groups are C 1-4 ; or where R<SP>1</SP> is H or C 1-24  alkyl and n is 0-15; Z is O, S, SO, SO 2 , NR<SP>1</SP> and NR#O where R 1  is H or R; when Z is NR#O or NR 1  the R groups may be joined with the nitrogen atom to form a morpholinyl group and when Z is O and R is alkyl the latter contains 2-30 C atoms. Where Z is O or S, compounds of Formula I are made by reacting α-sulphomaleic anhydride with the corresponding alcohol or thiol, followed by treatment with base to give the salt. To prepare compounds where Z is SO or SO 2  the corresponding α-substituted thio-#-succinate is oxidized with H 2 O 2 . Compounds in which Z is NR 1  are prepared by heating the corresponding primary or secondary amine with an alkali metal salt of sulphomaleic acid. These may be further reacted with H 2 O 2 , peroxyacetic acid or peroxyformic acid to produce the NR#O compound. The compounds of Formula I are used as detergent builders.
Patent GB-332134-A (GB)
Title: Improvements in optical reflectors for signalling and other purposes
IPC: G02B5/12
Filed: 1929-09-25
Abstract: 332,134. Punter, J. W., and Avril, G. Sept. 25, 1929. Reflectors of white or coloured glass or other transparent material are of conical form, the generating lines being inclined substantially at 45‹ to the axis, and the base comprising a lens, so that rays incident on the lenticular surface are reflected twice before emerging from that surface. The lenticular form causes a proportion of the light to be dispersed or diffused. In a modified form the reflector comprises a central cone, Fig. 4, surrounded by one or more circular rings f having a cross-section similar to that of the central cone. In another form, Fig. 7, the base of the reflector is moved as shown, and is similarly provided with concentrically arranged prismatic surfaces, the incident rays being reflected and refracted to form a parallel or convergent beam. The base of the conical reflector may be recessed in steps to reduce the absorption of light and the weight.
Patent GB-460134-A (GB)
Title: Improvements in and relating to motor car bodies
IPC: B60J7/053
Filed: 1936-10-30
Abstract: 460,134. Vehicle opening-tops. STEYRDAIMLER-PUCH AKT.-GES. Oct. 30, 1936, No. 29516. Convention date, Nov. 6, 1935. [Class 108 (i)] In order to provide a stream-line vehicle body with a sliding roof, the roof of the body in the region a.. b of the sliding roof 1 is formed as a body of revolution, i.e. in all longi - tudinal sections it has the same longitudinal curvature and also in this region the same or approximately the same transverse curvature. The sliding roof panel 1 is shaped to correspond so that on opening it in effect slides rearwardly with a rotary sliding movement about an axis transverse to the longitudinal direction.
Patent GB-238436-A (GB)
Title: Improvements in bearings
IPC: B61F15/02
Filed: 1924-12-09
Abstract: 238,436. Daeschner, F., M³nzer, P., and Blaschke, E. Dec. 9, 1924. Linings.-A bearing, particularly for railway vehicle axles, has, between the iron of the bearing bracket and the soft bearing material, a lining of bronze or like alloy which is cast while in a molten condition in the iron body and which extends to the end and side edges thereof to prevent contact of the axle and the iron body should the soft metal run through beating and to increase the heat conducting capacity of the bearing. As shown, an iron body a, Fig. 1, has cast bronze liners b with integral end flanges h which are lined with soft metal c. The latter runs into holes in the end flanges h and into dovetailed grooves formed between adjacent parts of the bronze lining b. A binding layer y of a material of low melting point, such as tin or zinc may be attached to the iron body, electrolytically or otherwise, before running in the molten bronze, to improve the mechanical connection between the bronze and the iron. The bronze end flanges h may run into dovetailed grooves in the iron body a, or, as shown in Fig. 4, the flanges h may be secured to the inner lining b by bridge pieces i formed by running the molten bronze in holes in the iron body. The inner soft bearing material should preferably be cast in the bearing while the bronze lining is still hot.
Patent GB-826528-A (GB)
Title: Rubber coupling for the individual axle drives of electrically driven vehicles
IPC: F16D3/58
Filed: 1957-09-20
Abstract: 826,528. Universal joints. BROWN, BOVERI & CIE A.G. Sept. 20, 1957 [Sept. 20, 1956], No. 29613/57. Class 80 (2). A universal coupling between two shafts 5, 6, particularly for the axle drives of electrically-driven vehicles, comprises two or more concentrically arranged pairs of discs 2, 2<SP>1</SP> and 3, 3<SP>1</SP> secured to arms 7, 8 on the shafts by bolts 10 and coupled together by rubber elements 1 bonded by vulcanization to the discs. Rings 4, 4<SP>1</SP> on the discs engage to maintain the discs mutually centred.
Patent GB-719399-A (GB)
Title: Improvements in or relating to measuring or indicating instruments
IPC: G01R1/02
Filed: 1951-12-18
Abstract: 719,399. Indicating-apparatus. GENERAL ELECTRIC CO., Ltd., BOWTELL, J. N., and McKEAG, A. H. Dec. 18, 1952 [Dec. 18, 1951], No. 29626/51. Class 106 (4). [Also in Group XL(a)] The transparent cover 7, 12 of an instrument panel contains an electro-luminescent device 9. 10, 11 (see Group XL(a)) which faces and illuminates the measuring or indicating parts of the instrument to make them readable in the dark. The background of the dial is made non-reflecting ; the markings 6 and the dial 4 being of reflecting material, e.g. of white on a matt black background.
Patent GB-1066252-A (GB)
Title: Improvements in printing press drive means
Inventor: WORTHINGTON EMORY WARREN
IPC: B41F13/00
Filed: 1964-07-23
Abstract: 1,066,252. Printing machines. WOOD NEWSPAPER MACHINERY CORPORATION. July 23, 1964, No. 29660/64. Heading B6C. Driving arrangements.-A rotary printing press unit comprises a number of printing couples each driven by a vertical shaft 11, 11a &c., each vertical shaft being driven from a horizontal main shaft 3 through gearing permitting reversal of the direction of rotation of at least one of the vertical shafts and its associated printing couple. As shown in a printing unit comprising two printing couples of which the impression cylinders 13, 13a, are illustrated, the drive of the shaft 11 is reversible and that of the shaft 1 1a is non-reversible. The shaft 11 is geared to the impression cylinder 13 of its couple and at its lower end carries a bevel gear 21 meshing with two gears 61, 63 rotatably mounted on the main shaft 3. The gears 61, 63 are toothed internally as well as externally. Between the gears 61, 63 is a sleeve 89 axially movable along the main shaft 3 but splined thereto for rotation therewith. Gears 85, 87 are carried by the sleeve 89 so that by axial movement either the gear 87 can be engaged with the internal teeth of gear 63 or the gear 85 can similarly be engaged with gear 61, the direction of rotation of the shaft 11, depending upon which pair of gears is engaged. With the sleeve 89 positioned as shown, the shaft 11 is not driven. Movement of the sleeve 89 is effected by rotation of a hand wheel. A similar drive arrangement 9 is provided for the shaft 11a except that the gear corresponding to gear 61 is omitted, so that by movement of a sleeve 89 the shaft 11a can be coupled to or uncoupled from the main shaft 3, but its direction of rotation cannot be reversed. Inking apparatus.-A shaft 27, parallel to the main shaft 3 has worm gears engaging fountain-roller drive-gears, and is driven directly from the main shaft by sprockets 31 and chain belt 33.
Patent GB-791971-A (GB)
Title: Purification of halogenated hydrocarbons
IPC: B01J41/04
Filed: 1955-10-18
Abstract: Normally liquid acidic halogenated hydrocarbons are purified by passing into a synthetic organic ion-exchange resin inert with respect to the halogenated hydrocarbon but attractive to ionic impurities therein, and thereafter separating the halogenated hydrocarbon from the resin.  In examples, perchloroethylene is passed through previously wetted beds of basic polystyrene-quaternary amine type resins or phenolformaldehyde type "anion" resin in hydroxyl forms, and the acidity, measured after various runs, is reduced to about pH 6.3-7.0; trichloroethylene is passed through anion - exchange resins of acidic polystyrene quaternary amine type in hydroxyl form which may be regenerated and dried, or a weakly-basic phenolformaldehyde anion-type resin after re-generating and drying, the pH being raised in all cases by several points.  Other resins specified as useful include sulphonated polystyrene and phenol-formaldehyde and styrene-vinyl chloride copolymers, and products from amines and cross-linked glycidyl-acrylic esters. Strongly or weakly basic resins may be employed in their basic form and acidic resins may be employed in their acidic form. Other liquid halogenated hydrocarbons including carbon tetrachloride and chloroform may be purified by the process.
Patent GB-1067408-A (GB)
Title: A sliding sleeve
IPC: F16L47/18
Filed: 1965-07-13
Abstract: 1,067,408. Expansion joints. H. GEBERT, and K. GEBERT, [trading as GEBERT & CIE]. July 13, 1965 [Aug. 14, 1964], No. 29693/65. Heading F2G. An expansion joint for connecting synthetic plastics pipes 4 and 15 comprises telescopic coaxial outer and inner tubes 1 and 2 respectively, the outer tube being provided with a resilient collar 5 having a free end 12 which makes with slight pressure only a line contact with the inner tube outer surface and the inner tube being provided with a resilient collar 16 having a free end 22 which makes with slight pressure only a line contact with the outer tube inner surface. The tubes are of synthetic plastics material such as polyvinyl chloride or polyethylene. The collar 5, also of synthetic plastics, has a conical bore 11 tapering from its inner end 13 to its free end and is a resilient press-fit into the flared outer tube end 10, first and second shoulders 6 and 7 on the collar engaging the tube end and an internal tube shoulder 8 respectively. The collar 16, which is welded to the inner tube 2, is provided with a broad groove 19 containing an 0-ring seal 20. Both collars are axiallyslotted at 14 and 23 to increase their resilience. The inner tube is provided with graduations 24 to facilitate the correct telescoped assembly of the tubes under the prevailing temperature conditions. The collar 5 may be secured to the outer tube by means of a thread or by welding. An eccentric sleeve 3 connects the inner tube to the pipe 4.
Patent GB-664747-A (GB)
Title: Improvements in the manufacture of articles from mica pulp
IPC: C04B28/24
Filed: 1949-11-21
Abstract: 664,747. Mica compositions. SOC. DES APPLICATIONS DU MICA, and GEORGE. H. Nov. 21, 1949, No. 29698/49. Class 70 [Also in Group VIII] Objects such as sheets and plates are manufactured from a pulp of finely divided mica using silica in the state of a colloidal sol as a binder. The mica pulp may be prepared by the methods described in Specification 591,388, and the silica by the hydrolysis of organo-silicic esters such as methyl or ethyl silicate. In examples, ethyl silicate is hydrolysed by dilute hydrochloric acid optionally with the addition of ethyl alcohol, and the reacted material further diluted with water, mica pulp is added and the mixture spread upon a paper frame or a frame made of sifting cloth or on to a sieve to produce a mineral cardboard.
Patent GB-484112-A (GB)
Title: Improvements in and relating to bakers' and like ovens
IPC: A21B1/14
Filed: 1936-11-02
Abstract: 484,112. Bakers' ovens. POINTON. J.E., and BAKER PERKINS, Ltd. Nov. 2, 1936, Nos. 29730/36 and 5447/37. [Class 51 (ii)] In a gas or oil fired Perkins tube oven, the tubes are enclosed for the whole or part of their length in heating-gas flues. In the single deck draw-plate or peel oven shown the ends of the tubes C, D project into combustion chambers E, F, fired by burners 6, and the waste gases are exhausted to the stack 11 through jacket flues A, B above and below the oven of just sufficient height to accommodate the tubes, and an end passage 8. The tubes spaced in the jacket flues by transverse supports 5. Both combustion chambers are located within the baking area of the oven, and the top of the lower one constitutes an extension of the sole plate 2. The tubes may be horizontal or inclined, and in the latter case the top and bottom walls of the baking chamber are correspondingly inclined to maintain good contact with the tubes. In a modification, Fig. 5 (not shown), with a single combustion chamber, the tubes and the flues enclosing them extend beneath, up the rear end, and above the oven chamber. In a straight " travelling " oven, Figs. 7 and 8 (not shown), three or more groups of tubes extending lengthwise of the oven are arranged above and below the conveyer band ; and where the oven is of the type having a conveyer moving in superposed laps, Figs. 9 and. 10 (not shown), partitions arc fitted between the laps with heating-tubes above and below them, the tubes for top heat being straight, while those for bottom heat are of hairpin form with their lower limbs enclosed in the heating flues.
Patent GB-678304-A (GB)
Title: Apparatus for heating air and separating dust from hot gases
IPC: F23M20/00
Filed: 1949-11-22
Abstract: 678,304. Centrifugal separators. WALTHER & CIE AKT.-GES. Nov. 22, 1949 [Nov. 22, 1948], No. 29898/49. Class 23 [Also in Group XIII] Apparatus for heating air and separating d u s t from dust-laden hot gases comprises a hot gas chamber c having on each side first an air passage h next a dust deposition chamber e next a second air passage h, anc. finally a clean gas passage g, and a series of dust-separating cells a each extending from a dust deposition chamber e on one side of the hot gas chamber c to the clean gas passage on the other, hot dust-laden gases entering each cell from the chamber c, dust-free gases being discharged from each cell into the chamber g at one end, and dust being discharged at the other. Successive cells have their dust-discharging ends at opposite sides of the hot gas chamber c. The inlets b to the cells may be formed by hoods directing the gas tangentially. The dust is discharged through a small axial hole at one end of each cell. The cells have fins i. A number of sets of passages and cells may be arranged side by side.
Patent GB-156387-A (GB)
Title: A new or improved toy or appliance for playing games
IPC: A63H18/08
Filed: 1919-12-01
Abstract: 156,387. Hutchinson, H. E. Dec. 1, 1919. Tracks.-A toy or appliance for playing games consists of a number of detachable pillars a of various lengths supporting grooved members d, f which can thus be built up into an inclined track, of any desired outline and of varying inclination, for a ball l to run upon. The straight members d are provided with dowels e, Fig. 3, which fit into sockets in the ends of the curved members, and the ends of the dowels are bevelled, as shown, to allow adjustment of the track at the joints.
Patent GB-233742-A (GB)
Title: Improvements in or relating to the adjustment of variable throw cranks or levers
IPC: F16C3/28
Filed: 1923-11-28
Abstract: 233,742. Stenbridge, H. Nov. 28, 1923. Cranks, variable and adjustable throw.-In a variable throw crank or lever, the crank pin, and, if desired, a balance weight also, are each attached to a radially slidable rack with inclined teeth engaging corresponding rack teeth on a slidable controlling bar which passes axially through the bolt or pivot of the crank or lever. The crank K is carried by a member D slidable upon radial guides on the lever A having a central pivotal boss B. If desired a corresponding balance weight E is similarly mounted upon the opposite arm of the lever. Secured to each member D, E is a rack d<1>, e<1> formed with inclined teeth adapted to engage corresponding inclined teeth formed on opposite sides of a square bar C, Fig. 6, passing axially through the boss B. To provide for adjustment, the end of the bar C is formed with a groove c<3> which is engaged by a fork f<1> on a slidable member F connected by a link h<1> to an actuating lever H. A recessed part C<4> in the bar C enables the racks d<1>, e<1> to be disengaged. Specification 196,636, [Class 80 (ii), Gearing, Variable-speed &c.], is referred to in the Provisional Specification.
Patent GB-144196-A (GB)
Title: An improved tin-opener
IPC: B67B7/44
Filed: 1919-12-01
Abstract: 144,196. Finkelstein, G. Dec. 1, 1919. Hand-shears.-A shears tinopener comprises levers 1, 3 formed of sheet metal bent into loop formation, pivnted one within the other, and connected by a spring 17. A piercer 9 is provided on one lever; on the other is a sharpened hook 15 adapted, in the case of thin or soft tins, to be thrust in and drawn along to effect the opening.