baber/WOPTO huggingface dataset:
Patent GB-385112-A (GB)
Title: Variable-speed transmission gearing
IPC: F16D67/00
Filed: 1931-12-22
Abstract: 385,112. Variable-speed gearing. ALVIS CAR & ENGINEERING CO., Ltd. and CLARKE, G. T. SMITH-, Holyhead Road, Coventry. Dec. 22, 1931, Nos. 35366/31, 22614/32, and 29104/32. [Class 80 (ii).] Variable-speed gearing comprises an hydraulic coupling in combination with an epicyclic toothed train and a mechanical clutch in parallel with the coupling so that the latter cushions engagement of the former. When used with conventional change gearing in place of the usual engine clutch on a vehicle, the mechanical clutch is disengaged in changing speed. The engine shaft 4, Fig. 1, carries the driving member 2 of the hydraulic coupling which has a casing extension 2<1> secured to a female clutch cone 19. The male clutch member 18 is splined at 17 on a sleeve 12 fast to the sun gear 11 of the epicyclic train. The driven member 5 of the coupling is fast to the annulus 6 of the train and to a plate 13 closing a recess containing the train. Planet gears 7 are carried directly on the driven transmission shaft 8. The male clutch member 18 is doubly coned and is normally held in firm double engagement by springs 22 acting on a female cone 20 splined at 21 to the casing 2<1>. In this position, with the engine throttled down, the coupling members rotate idly in opposite directions. The cone 20 is connected by a sleeve to a thrust ring 23 outside the casing to which a rightward manual thrust is applied to compress the springs 22 and withdraw the cone 20 from clutch engagement. At the same time, a Belleville spring 24 automatically thrusts the male cone 18 clear of the cone 19, freeing the driven coupling member 5 from mechanical constraint. A form is described with a single spring-pressed clutch cone having an angle of 28‹ to ensure firm gripping engagement. In a form shown in Fig. 2, the male clutch cone 18a is rendered self-tightening by mounting it on a quick-pitch thread 28 on a sleeve 27 splined at 17 on the sleeve 12 of the sun gear 11. The sleeve 27 is held against axial motion by a flange 34 which forms an abutment for clutch-engaging springs 41. The springs 41 act on a collar 35 which engages projections 31 on keys 30 sliding in straight grooves 29 in the sleeve 27. The keys 30 have inclined lands 32 engaging the clutch cone 18a so that the springs 41 turn the cone 18a which screws into firm. engagement with the member 19 and casing 21. Disengagement is effected by a pedal leftward thrust on a block 39 which slides the collar 35 and keys 30 so as to unscrew the nut cone 18a sufficiently. A bevel planetary train may be used.
Patent GB-448782-A (GB)
Title: Improvements in and connected with the road wheels of self-propelled vehicles
IPC: B60B3/04
Filed: 1934-12-11
Abstract: 448,782. Vehicle wheels. HAMILL. W. W., Woodlands, Forest Lane, Chigwell, and KELSEY-HAYES WHEEL CO., Ltd., Dagenham Dock, both in Essex. Dec. 11, 1934, No. 35508. [Class 144 (i)] A wheel comprises an apertured disc 6 in which the flanges 9 surrounding the apertures 8 are outwardly flared as shown at 12 to direct air-flow towards the periphery of the brake-drum 10. As shown in Fig. 2, the walls of the apertures may be shaped to produce Venturi effects.
Patent GB-925498-A (GB)
Title: Convertible top for cabriolet
IPC: B60J7/185
Filed: 1961-10-02
Abstract: 925,498. Sliding and folding roofs for motor vehicles. STUTTGARTER KAROSSERIEWERK REUTTER & CO. G.m.b.H. Oct. 2, 1961 [Oct. 8, 1960], No. 35513/61. Class 108(1). A convertible top for a cabriolet, has struts 11, 12, 13, 14 for tightening the covering material, the first strut 11 being slidable toward the strut 12 along the longitudinal axes of rods 4 forming the lateral frame members of top section 1. Struts 12, 14 are fixed to rods 4 and 6, and strut 13 is connected by links 15 to rods 4, 5, the rods 4, 5, 6 being pivoted together at 7 and 8. Each rod 4, Figs. 4, 7, is telescopic and comprises a U-section member 21 with flanges 24<SP>1</SP>, 25<SP>1</SP> fixed to strut 12, a member 22 slidable in member 21 and pivoted at 31 to a member 23 which has a flange 45 co-operating with flange 46 on member 21. In the expanded position, Fig. 4, a bell crank 37 pivoted at 36 to member 22 is biased by pin 42 on member 21 to force member 23 outwardly via pin 41 in slot 39, to force a sealing strip 35 against window 32. A plate 52 slidable on studs 54 on member 21, is moved by spring 55 to engage a retractable stud 51<SP>1</SP> on the vehicle to lock to to pin position. To open the front top section 1, a part 62 of strut 11 is unlocked from part 61, Fig 9, which is locked to windscreen frame 17 by hook 68; an electric motor 66 on strut 12 moves part 62 via gear rack 63 sliding in guides 29 on member 22, and gear units 64; on contact with strut 12 motor 66 is stopped and its electric circuit reversed so that motor 66 rotates in the opposite direction when next operated. For folding the top; a handle 73 is rotated clockwise, Fig. 9, to lock strut parts 61, 62 together and then release hook 68; motor 66 then moves strut 11 towards strut 12. The member 23, Fig. 4, pivots inwardly due to surfaces 45, 46 and bell crank 37 moves from pin 42 to finally abut a flange 52<SP>1</SP> on plate 52 to move and disengage the plate from stud 51<SP>1</SP>. The top can then be folded back into a rear compartment on the vehicle. The stud 51<SP>1</SP> is then retracted into the vehicle body.
Patent GB-858696-A (GB)
Title: Improvements in the production of fibres from thermoplastic materials
IPC: C03B37/00
Filed: 1958-11-06
Abstract: 858,696. Glass fibre manufacture. COMPAGNIE DE SAINT GOBAIN, [formerly MANUFACTURES DES GLACES ET PRODUITS CHIMIQUES DE SAINT-GOBAIN, CHAUNY & CIREY S. A. DES.]. Nov. 6, 1958 [Nov. 6, 1957], No. 35634/58. Drawings to Specification. Class 56. In the manufacture of fibres of glass, slag or basalt, the molten material in the form of a filament on its path to a centrifuging means, whereby it is attenuated with fine fibres, is submitted to the action of heating means such that the transmission of heat is effected without any material contact. The heating may be uniform along the length of the filament or may vary, for instance being more intense adjacent the alternating means. High frequency currents, radiation, Joule reaction and heating by dielectric losses are referred to.
Patent GB-488097-A (GB)
Title: Improvements in and connected with pedals of foot-propelled bicycles
IPC: B62M3/12
Filed: 1936-12-30
Abstract: 488,097. Reflectors for cycles. PENNY, K. J., and WORTHINGTON. H. J. Dec. 30, 1936, No. 35686. [Class 97 (i)] The side plates c of bicycle pedals are formed with recesses c<1> to accommodate reflecting glass panels d and with end projections or tongues c<3> by which they are attached to the end members b, c<4>. The outer end member c<4> is formed, similarly to the side plates, with a recess to receive a reflector d. Each reflector has a convex outer surface d<1> and a faceted inner surface, and the surface of the recess c<1> is burnished &c. to increase reflection. Two further reflectors, one facing to the front and the other to the rear, may be mounted on the pedal spindle so as to project below the pedal. When a toe-clip is provided, it may also carry a reflector.
Patent GB-1396732-A (GB)
Title: Method of and means for preventing clogging of ground drainage  pipes
IPC: E02B11/00
Filed: 1972-07-31
Abstract: 1396732 Preventing clogging of drainage pipes TWISTRINGER RBM DRANFILTER GmbH & CO KG 31 July 1972 35696/72 Heading A1B A tannin is introduced into a drainage area to prevent the clogging of drain pipes by the natural deposition of "ochre-forming" earth components as insoluble compounds. The tannin is natural or synthetic (or a mixture). The tannin is contained in fibrous, granular or liquid material. The tannin may be mimosa bark, catechu, tea by-products, quebracho, or extracts. The total amount of tannin added may be equal (or 100% in excess of) the stoichiometric amount necessary to convert all the "ochre-forming" earth components in the drainage area, or may be determined by the ratio of the dissolving rates of the tannin and components, or may be more than 25gm, e.g. 70-100 gm per metre length of drain pipe. In Fig. 1 a perforated corrugated plastics drain pipe 1 is enveloped by a tannin filter 4 comprising a 1cm layer 5 of granular quebracho. Alternatively, large tannin inclusions 9 may be embedded in the normal filter material 8, or material 8, 9 may be embedded in the pores of a carrier material (not shown) e.g. straw glued together, which itself serves as the drain pipe. The tannin material may be applied to the pipe as an inner or outer sleeve. The perforated sleeves 10, 11 may be replaced by textile or straw layers, the whole filter being formed as a strip which is strapped around the drain pipe. The tannin may be introduced as loose material or in preformed strips into a trench during laying of a drain pipe in it. Tannin in liquid form may be poured onto the surface of the ground, or injected into the ground or a drain filter, or flushed back through the pipe to clean it. Tannin material may be stuffed into the drain pipe over its whole length, or at intervals e.g. by forming the pipe connectors of tannin material or by insertion of tannin material into conventional connectors (Fig. 12). Tannin material may be stuffed into drain sumps leading to drain pipes.
Patent GB-1120525-A (GB)
Title: Improvements in or relating to transmission circuit arrangements
IPC: H03F1/54
Filed: 1966-08-10
Abstract: 1,120,525. Carrier frequency supply arrangement. SIEMENS A.G. 10 Aug., 1966 [11 Aug., 1965], No. 35706/66. Headings H4L and H4R. In an arrangement in which service and standby generators of a carrier frequency transmission system are connected to a load circuit in parallel and control means are provided to connect selectively the supply voltage to one or the other of the two generators, the output stages comprise transistors with diodes in their collector circuits to prevent current flow during half-cycles of forward potential when the supply voltage to that generator is off. The carrier supply is monitored by a relay which controls relays in the respective supply lines, and a manual reset key is provided. The arrangement is symmetrical and either generator may be connected to provide the normal supply.
Patent GB-413573-A (GB)
Title: Sealing means for the shafts of rotary pumps and the like
IPC: F16J15/16
Filed: 1933-12-20
Abstract: 413,573. Stuffing -box substitutes. WINCH, H., Myton House, Myton, Warwick. Dec. 20, 1933, No. 35825. [Class 122 (v).] A stuffing-box substitute comprises a flexible annulus which engages a flange on the shaft when it is stationary, but which is suctionally withdrawn when the shaft is rotated. The pump shaft 4 carries a sleeve having a conical end 11, the position of which may be adjusted by the screw and nut gear 12, 13. The wall of the pump casing has a circular flange 7 carrying a flexible annulus 9 adapted by its springiness to contact with the conical member 11 to prevent the passage of liquid into the pump. When the pump is rotating the annulus is drawn clear and unseals the passage. The pump casing may have a further outer flange 15 and a pipe connection 16 whereby sealing liquid may be carried in the chamber so formed. The Provisional Specification states that a second conical ended sleeve and flexible annulus may be fitted.
Patent GB-452254-A (GB)
Title: Improvements in remote indicating thermometer
IPC: G01K1/20
Filed: 1935-12-30
Abstract: 452,254. Indicating - apparatus. GIERS, C. A. DE, 41, 42nd Street, Long Island City, New York, U.S.A. Dec. 30, 1935, No. 35953. Convention date, Jan. 26. [Class 106 (iv)] [See also Group XX] A distance thermometer comprises an indicator operated by a bellows 24 connected by a tube 22 to a thermometer bulb 20 and a duplicate bellows 28 and tube 26 closed at the remote end 30, a temperature responsive element 88 being provided to compensate for errors arising from changes of temperature at the indicator when the bellows 24 and 28 are of different lengths due to the varying amounts of liquid transmitted from the bulb 20 to the bellows 24. In the form shown, the free ends of the bellows 24, 28 are connected by rods 40, 42 to the ends of a lever 44 pivoted at 46 in a yoke 48, Fig. 2, which in turn pivots on the fixed sleeve 50. Two arms 60, 62 pivot on a pin 56 secured to the lower end of one of the arms of the yoke 48 and may be adjustably clamped together by screw 64 and slot 66 to form a single lever. A link 70 adjustably pivoted at 72 to the lower end of the arm 62 is arranged to move the pointer 80 against the action of a spring. The latter maintains a cam surface 108 on the arm 60 pressed against a stud 106. If the stud 106 is aligned with the sleeve 50, the yoke 48 and lever 60, 62 swing about the same axis, but if the stud 106 is out of alignment with sleeve 50, the yoke 48 and lever 60, 62 swing about different axes and the movement of the pointer 80 is modified as compared with what it would be if the pointer were fixed to the yoke 48. In order to correct errors due to changes in temperature at the indicator when the temperature at the bulb 20 is such as to cause the bellows 24 to differ considerably in length from the bellows 28, the stud 106 is mounted on a lever 104 fixed to a sleeve which is pivoted at 102 and has clamped thereon at 96 an arm 94 adjustably pivoted at 92 to a rod 90 at the free end of a third bellows 88. The zero position of the stud 106 may'be altered by the adjustment device at the pivot 92 and the zero position of the pointer 80 by the adjustment device 64, 66. The effective length of the lever 60, 62 and therefore the extent of travel of the pointer 80 may be varied by the adjustment device at 72. In a modification, Fig. 5, the spindle 124 of the pointer 120 carries a pinion 126 engaged by a rack 128 on a lever 130 which is pivoted at 132 between parallel plates 152, 154. The lever 130 is connected by a link 134 to a lever 136 corresponding to the lever 60, 62, Figs. 1 and 2, and has a slot 138 to enable adjustment of the travel of the pointer 120. The zero adjustment for the pointer is provided by the screws 140, 142 which act upon an extension 144 of a plate 146 to which the plates 152, 154 are secured and cause the latter to rotate about an axis aligned with the pointer spindle.
Patent GB-468216-A (GB)
Title: Improvements in the manufacture of abrasive coated webs
IPC: B24D11/00
Filed: 1935-12-30
Abstract: 468,216. Abrasive-coated webs. CARBORUNDUM CO. Dec. 30, 1935, No. 35999. Convention date, June 11. [Class 60] In making abrasive-coated webs, one side is coated with a heat-reactive, i.e., thermoplastic or heat-hardenable, adhesive and abrasive grains and the coated side is heated while the other side is simultaneously cooled. The coated side of the web may be subjected to radiant heat or alternatively or additionally, hot gases may be directed thereon. A web of paper 1, Fig. 2, is coated with adhesive between rolls 6 and 7, passed under a grain-feeding device 11, 12 and into a chamber 16 over supporting guides 17. An upper compartment 14 contains electrically heated rods 19 and a lower compartment 15 is provided with cooling air from a source 22. On emerging from the chamber the web is cooled by an air-blast from a source 23 and rolled on a drum 26. In the modification shown in Fig. 4, the coated web 18 first passes into an upper heating chamber 29, around a drum 36 and out through a lower heated chamber 28. Heating is effected by passing hot gas in the opposite direction into the chamber 28 and out of the chamber 29. Cooling is effected by air which enters a lower chamber 37 and leaves from an upper chamber 38. Water may be supplied to the jackets 35 to assist cooling. Alternatively the web may be pressed between heated and cooled platens of a hydraulic press. In examples, (1) paper is sized with glue and coated with a toluol solution of an oil-modified phenol-aldehyde resin similar to that described in example 1 of Specification 359,986, [Group V]. Abrasive is applied and sized with a thinner solution of the same resin. After heating the coated side with simultaneous cooling of the uncoated side the product is wound into a roll and cured completely as described in Specification 467,111 ; (2) A thin coating of a normally liquid phenol-formaldehyde condensation product is applied to sized paper and a mixture of fused alumina grains and dry pulverized phenol-formaldehyde resin in the A stage spread thereon, the product being heated as in example 1.
Patent GB-983374-A (GB)
Title: Improvements relating to bakery machinery
Inventor: CORNFORD SAMUEL JOHN
IPC: H02P29/00
Filed: 1962-09-21
Abstract: 983,374. Control of motors; protective arrangements. BRITISH BAKING INDUSTRIES RESEARCH ASSOCIATION. Dec. 18, 1963 [Sept. 21, 1962], No. 36018/62. Headings H2J and H2K. A three-phase motor 2 operates a dough - processing device, a thermal converter wattmeter 3 responding to stop the doughfeeding means when the power consumption of the motor rises to an abnormal value. The converter output is applied through D.C. amplifier 4 to controller 5, a potentiometer 7 enabling a variable voltage to be applied to amplifier 4 in opposition to the voltage derived from the wattmeter 3, so that the controller indicates zero when the machine is running empty. When the power consumption exceeds a preset value, controller 5 closes circuit of relay RLC through change-over switch S 3 , whereby contacts RLC 1 , RLC 2 , open to break the circuits, for feed equipment 9 and for the motor 2. In a modification, the wattmeter 3 is replaced by a dynamometerwattmeter, the opposing voltage being derived from a transformer having its primary winding between line L 3  and neutral N. The secondary winding of the transformer is connected across the current-sensitive element of the wattmeter in reverse phase with respect to the current flowing through line L3 to the motor. A variable resistor allows the indicator on the wattmeter to be set at zero when the machine is running empty, Fig. 2 (not shown).
Patent GB-413719-A (GB)
Title: Improved process of refining hydrocarbons
IPC: C10G27/14
Filed: 1932-12-20
Abstract: Liquid hydrocarbons are purified to obtain motor fuels by treating the liquid or vapour with ozonized air in presence of a catalyst specified below, and then with diluted or concentrated sulphuric acid to which ferric chloride or sulphate is added before or during treatment.  Washing with soda lye and with water, and distillation may follow, and washing with soda lye may precede, the treatment with acid.  Catalysts used are salts of iron, manganese, or vanadium, e.g. iron stearate manganese oleate, and resinate of vanadium; and aldehydes and ketones forming unstable peroxides with ozonized air, e.g. acrolein, citral, phorone, pinacoline, and benzaldehyde.  In examples: (1) 10 c. meters of ozonized air are bubbled during \ba1/2\be hour and at 60 DEG  C. through 1000 litres of crude cracked spirit topped to 70 DEG  C.; the product is agitated with 5 per cent by weight of 70 per cent sulphuric acid containing 5 per cent of its weight of ferric chloride, freed from acid and tar, washed with soda lye, and rectified up to 180 DEG  C.; (2) 15,000 litres of ozonized air containing 100 gm. of ozone per litre are bubbled through 1000 litres of crude benzol mixed with 0,125 litre of acrolein; the liquid is then treated with 5 per cent of 70 per cent sulphuric acid containing 20 per cent of its weight of ferric chloride, and after separating the tar is washed with soda and rectified up to 150 DEG  C.
Patent GB-860800-A (GB)
Title: Magnetic record transducing heads
IPC: G11B5/127
Filed: 1958-11-11
Abstract: 860,800. Magnetic recording heads. SONOTONE CORPORATION. Nov. 11, 1958 [Nov. 21, 1957], No. 36197/58. Class 40 (2). A head for recording and reproducing, or alternatively for erasing, has the core-halves 30, 31, the output connectons and the coils mounted in a casing 25, an assembly clip 50 locating the transducing gap region 28 in appropriate alignment with the case for potting. The potting mixture is a resin such as epoxy with at least 50% of inorganic filler, such as silica dust added, which matches the thermal expansion of the cured mixture to that of the core-members relieving thermal stresses and raises its hardness. Those parts of the casing 25, the assembly clip 50 and the core-members above the line 27, are then ground away and the surface along that face polished to form the tape-guide. The remaining portions 52 of the clip 50 serve to " earth " the core-members electrically to the casing 25. Specification 860,801 is referred to.
Patent GB-522709-A (GB)
Title: Improvements in or relating to amplitude limiting circuit arrangements
IPC: H04N5/08
Filed: 1938-12-13
Abstract: 522,709. Amplitude limiting valve circuits; television. MARCONI'S WIRELESS TELEGRAPH CO., Ltd., and FEWINGS, D. J. Dec. 13, 1938, No. 36358. [Classes 40 (iii) and 40 (v)] An amplitude limiting circuit, especially for separating synchronizing and picture signals in television systems, comprises a pentode valve A, Fig. 3, or an electron beam valve or the like, the anode current-grid voltage characteristic of which has a sharply rising portion followed by an extended flat portion, and a second valve B connected in series with the first, the arrangement of these two valves with their associated resistances and condensers as shown being such that the relation between the current through both valves in series and a voltage applied to the grid of the second valve has an inclined rising portion followed by an extended flat portion as shown in Fig. 4 for two different screen grid voltages on the valve B. Television signals are supplied to the grid of the valve B at such a bias that the picture signals PS are eliminated by the bottom bend E and the synchronizing pulses SP are limited to uniform amplitude by the upper bend F. In a modification, the separate battery D shown in Fig. 3 for supplying screen grid voltage to valve A is replaced by a potentiometer device for deriving this voltage from the main supply.
Patent GB-761882-A (GB)
Title: Improvements in or relating to the manufacture of cold-cathode electric discharge devices
IPC: H01J17/06
Filed: 1953-12-31
Abstract: 761,882. Automatic regulation. GENERAL ELECTRIC CO., Ltd., and MILLER, J. S. Dec. 31, 1954 [Dec. 31, 1953; June 11, 1954], Nos. 36374/53 and 17243/54. Class 38 (4). [Also in Group XL (a)] The cathode-activating current in a discharge tube 19 is maintained constant in spite of fluctuations in internal resistance by providing in series with it a pentode or tetrode V1 which can be operated on a flat part of the current/voltage characteristic. A gas-filled voltage stabilizer V2 has its control electrode 15 connected through a resistor R2 to the positive D.C. supply terminal 11; its anode is connected to the positive terminal through a resistor R3, and to the screen grid 17 of V1 through a variable resistor R4, so that an adjustable but stabilized control voltage is applied to grid 17. This is initially adjusted to give a current of 100 mA. through the tube 19. Suitable circuit components are specified. Specification 759,929, [Group XL (a)], is referred to.