baber/WOPTO huggingface dataset:
Patent GB-859683-A (GB)
Title: Improved vehicle seat back latch
IPC: B60N2/22
Filed: 1959-04-06
Abstract: 859,683. Vehicle seats. FORD MOTOR CO. Ltd. (Ford Motor Co.). April 6, 1959, No. 11543/59. Class 52(2) A motor vehicle seat with a back 12 hinged to the seat cushion 11 by a hinge arm 13 and pin 16 has a latch responsive to the velocity of movement of the seat back relative to the vehicle to permit the back 12 to be swung forwardly when the velocity is low but to hold it upright when the velocity is relatively high. A keeper 17 with tooth 19 and retaining portion 2 is mounted on hinge arm 13 and a keeper plate 23 is mounted on the keeper whilst a latch 24, with tooth 26 to engage tooth 19 and a portion 27 to engage with portion 21, is pivotally mounted on a stud carried by the seat frame and biased away from the keeper 17 by a spiral spring 37. Slower movement of the back 12 raises keeper 17 and moves tooth 19 away from tooth 26 permitting the spring 37 to swing the latch clockwise and move portion 27 from portion 21 of the keeper but when the seat back moves rapidly as during a collision or emergency stop of the vehicle portion 21 engages portion 27 before the spring 37 can swing the latch out of position.
Patent GB-857040-A (GB)
Title: Improvements in or relating to speed control equipment for electric motors
Inventor: CLARK THOMAS HAROLD
IPC: H02P25/28
Filed: 1957-04-09
Abstract: 857,040. Automatic speed-control systems. BRITISH TELECOMMUNICATIONS RESEARCH Ltd. March 27,1958 [April 9, 1957], No. 11566/57. Class 38 (4). In an automatic control system the speed of an electric motor is maintained constant by regulating the power supplied to the motor by a transductor controlled by a signal derived by using a high-pass filter to sense a change in frequency of an alternating current produced by an equipment driven by the motor. As shown, an alternating signal, derived from a permanent track on a magnetic drum, is fed through a transformer T1 to a transistor amplifier TR1, TR2, the output of which is fed to a high-pass filter H.P.F. having a substantially linear slope to the attenuation curve over the region corresponding to the speed limits of the drum. The variable-amplitude alternating signal from the filter is fed to a transistor TR3, connected as an emitter-follower, and rectified and smoothed by diodes MR1, MR2 and a capacitor. The resultant direct-current signal is amplified by direct-coupled transistors TR4, TR5 and fed to control-windings C1, C2 of a magnetic amplifier MA regulating the power supplied to a transformer T2. The output from the transformer T2 is rectified by a bridge rectifier MR4 to feed control windings C3, C4, C5 of a three-phase transductor TR controlling the power supplied to a motor M driving the magnetic drum, so as to maintain the drum speed constant.
Patent GB-149410-A (GB)
Title: Improvements relating to electric switches
IPC: H01H1/52
Filed: 1919-05-09
Abstract: 149,410. Ansingh, H. K., and Metropolitan-Vickers Electrical Co. May 9, 1919. Switches, latching and unlatching.-An isolating switch of the knife-blade type, operated by means of a pole carrying an insulating hook which passes through a hole 5 in the switch blade 2, is mechanically locked in the closed position, automatically, by a catch comprising a metal piece 6 having an orifice formed by rearwardly-projecting jaws 7 through which the terminal piece 3 (which is secured to the switch jaws at the front of the switch board) can loosely pass to form a pivot for the catch; the front end of the catch is bevelled and formed with a hook 11 to engage the projecting free end of the switch blade. The catch rests upon the fixed contacts 1 and the upper front edge of the orifice is bevelled at 9 to facilitate the tilting movement. In the closing movement, the switch blade engages the bevelled portion of the catch and lifts it until the switch is fully closed, whereupon the catch falls down into the locking position. When the operating hook is inserted into the hole 5, it engages with the chamfered edge 13 of a notch in the side of the catch, which leaves the hole 5 partly exposed, and lifts the catch somewhat. The blade is then drawn towards the off position and, in the course of the slight movement possible before the catch hook is reached, the pole hook by engagement with the inclined side of the notch lifts the catch and unlocks the switch. The notch may be dispensed with, the lower edge of the catch partly covering the hole. In this case, a long tapered hook is used, which, when fully inserted in the hole, lifts the catch free of the blade. In a form in which the blade is horizontal in the closed position, the catch is drawn to the fixed contacts. by a spring.
Patent GB-542582-A (GB)
Title: Improvements relating to apparatus for transporting foods and for maintaining foods hot
IPC: A47J41/00
Filed: 1940-07-16
Abstract: 542,582. Keeping foodstuffs hot. WOOD, D. H., ELLARD, G. P., KING, F., RICKARD, P. E., and AVAMORE ENGINEERING CO., Ltd. July 16, 1940, No. 11771. [Class 64 (ii)], A double-walled container 1 with heat insulation in walls and bottom is provided with a heat-insulated cover 3 resting on a shoulder 4. The cover is locked by a bar 8 having downwardlycranked portions 9, which is rotated to engage inclined parts 7a of loops 7. Several food-containing vessels 10 interengage one another and are provided with a carrier so that they may be inserted and removed as a unit. The carrier comprises a square base with corners projecting beyond the vessels 10, jointed to wire side frames 15 having cross bars 16 at the top to which bail handles 17 are pivoted. The container alone may be used for transporting hot liquid foods, in which case the cover fits relatively tightly.
Patent GB-790643-A (GB)
Title: Weft stop-motion device for weaving looms
IPC: D03D51/34
Filed: 1955-04-23
Abstract: 790,643. Loom weft stop-motions. DURAN, M. D. April 23,1955, No. 11796/55. Class 142(2) A pin 6 engaging the weft is mounted upon a rotatable shaft 5 supported by an arm 2 rocked by the loom drive, and upon weft failure the shaft 5 is rotated by a weight 8 so that a stop 10 mounted on the shaft strikes a stop 13 to release a catch 15 to stop the loom.
Patent GB-280106-A (GB)
Title: Improvements in or relating to devices for improving the ignition in internal combustion engines
IPC: F02P15/12
Filed: 1927-05-03
Abstract: 280,106. Lange, K. May 3, 1927. Sparking-plugs; systems, electric.-A tube e, containing phosphor-bronze filings, carbon particles or the like, is included in the ignition circuit. It may be embodied in the sparking plug, inserted in the conducting leads or mounted within the arch of the magneto.
Patent GB-865207-A (GB)
Title: Improvements in or relating to detergent dispensers
Inventor: TAYLOR ALBERT
IPC: D06F39/02
Filed: 1956-04-18
Abstract: A detergent block moulded under pressure, e.g. by extrusion, contains an alkyl aryl sulphonate such as dodecyl benzene, sodium sulphonate which is sodium or ammonium neutralised, an organic additive such as a fatty alkylolamide, and inorganic salts and water.  Metasilicate may be added.  The sulphonate may be replaced by fatty alcohol sulphates and alkali salts of sulphated ethonylated fatty alcohols. Specifications 865,208 and 865,209 are referred to.
Patent GB-559654-A (GB)
Title: Arrangements for indicating a characteristic of an alternating current electric supply system
IPC: G01R1/30
Filed: 1942-08-25
Abstract: 559,654. Current, frequency and phase-difference measurements; detecting faults. STANDARD TELEPHONES & CABLES, Ltd., McWHIRTER, E. M. S., DUNN, R. H., and CHAMBERS, C. H. Aug. 25, 1942, No. 11933. Addition to 547,665. [Class 37] In an arrangement for indicating a characteristic of an alternating current supply system, as claimed in the parent Specification, the inductive impedance of one of the coils at the limiting unbalanced condition is neutralized, at least in part, by a capacity in shunt with the coil, which capacity may roughly tune the coil to supply frequency. As described in the parent Specification the winding P in series with the load and the winding S in shunt are arranged to produce opposing magnetomotive forces in the iron of the transformer, so that it is operated at or near a neutral or zero condition of flux. A winding T, together with its indicating relay RL which can be either an A.C. or D.C. relay depending on whether or not the rectifier RB is included, is used to detect small current changes in either of the windings P, S by the creation of a flux in the common core. In order to prevent excessive rise of voltage across the winding T, a condenser C and resistance R are connected in parallel therewith, the condenser roughly tuning the coil to supply frequency. The condenser may alternatively be connected across either of the windings P, S.
Patent GB-436886-A (GB)
Title: Improvements in or relating to the manufacture of leaded ammonium chloride crystals
IPC: C01C1/16
Filed: 1934-04-20
Abstract: Light-coloured leaded ammonium chloride crystals, suitable for use in soldering and tinning, are obtained by causing mixed crystals of a lead compound, e.g. lead chloride, and ammonium chloride to be deposited from an alkaline solution of ammonium chloride containing lead and treating the crystals so deposited with acid, preferably hydrochloric acid.  The treatment may be effected by acidifying the mother liquor in which the crystals are suspended and then separating the crystals, by treating the separated crystals with an acidified ammonium chloride solution or by treating the separated crystals with a dilute acid, e.g. sulphuric or hydrochloric acid.  The mixture of acid liquor and crystals may be agitated with compressed air before separating the crystals.  An example is given.ALSO:Light-coloured leaded ammonium chloride crystals, suitable for use in soldering and tinning, are obtained by causing mixed crystals of a lead compound, e.g. lead chloride, and ammonium chloride, to be deposited from an alkaline solution of ammonium chloride containing lead and treating the crystals so deposited with acid, preferably hydrochloric acid. The treatment may be effected by acidifying the mother liquor in which the crystals are suspended and then separating the crystals, by treating the separated crystals with an acidified ammonium chloride solution or by treating the separated crystals with a dilute and, e.g. sulphuric or hydrochloric acid.  The mixture of acid liquor and crystals may be agitated with compressed air before separating the crystals.  An example is given.
Patent GB-615992-A (GB)
Title: Phonograph apparatus
IPC: G11B3/085
Filed: 1946-04-18
Abstract: 615,992. Phonograph apparatus. PHILCO PRODUCTS, Inc., (formerly PHILCO RADIO & TELEVISION CORPORATION). April 18, 1946, No. 12015. Convention date, April 18, 1945. [Class 40 (ii)] - The Specification describes a phonograph apparatus of the type disclosed in Specifications 615,991 and 615,993, but includes an improved type of feeler mechanism which is designed to prevent the possible rebounding outwardly of a record being placed on the turntable, and comprises the use of longer feeler arms which project forwardly beyond the wide portion of the inserted record. The stop member 57 used in the previous embodiment is omitted, so that the arms 54a, 55a, Fig. 16, are operated by a 10 inch record in the same manner as with a 12 inch record, and close on to the record after insertion. The latch member 64a is provided with an additional recess 99 which engages the pin 78 when the lid is closed, so that the rollers 58a, 59a are withdrawn from contact with a 10 inch record, in the same manner as with a 12 inch record.
Patent GB-610994-A (GB)
Title: Improvements in folding umbrellas
IPC: A45B13/00
Filed: 1946-04-18
Abstract: 610,994. Umbrellas. UNITED WALLPAPER, Inc. April 18, 1946, No. 12021. Convention date, April 28, 1945. [Class 134] A folding umbrella has a number of trapezoidal flat ribs 40, Fig. 1, secured at their inner ends 43 to a strip of flexible material 45 so that they may be opened fanwise, Fig. 2, when the flexible strip forms a central polygonal opening. To maintain this open position the two outer ribs are detachably fixed together by means of clips or self-adhesive strips. The cover is secured to the upper edges 42 of the ribs by adhesive, and has a radial opening to facilitate folding. The handle has a spigot which may extend throughout the central polygonal opening, being flattened at the top end. In a modification it may only extend partly therethrough, screwing into a bracket fixed to a rib, or being detachably or fixedly secured to a bracket which is carried fixedly or pivotally by a rib. In a further modification the handle may be dispensed with and the umbrella held up by hand, for which purpose hand openings 44, Fig. 1, are provided in the outer ribs.
Patent GB-1204543-A (GB)
Title: Improvements in or relating to liquid fuel supply systems for vehicle engines
Inventor: BISHOP BRIAN LIONEL HUNT
IPC: F02M5/10
Filed: 1967-03-14
Abstract: 1,204,543. Spray carburetters. SMITHS INDUSTRIES Ltd. Feb.23, 1968 [March 14, 1967], No.12033/67. Heading F1B. The float chamber 4 has a drain pipe 12 to the fuel tank with a restriction 13 which provides for the return of fuel from the float chamber when the fuel pump 2 is inoperative. Vapour in the float chamber is vented to the carburetter induction passage through a pipe 9.
Patent GB-352561-A (GB)
Title: Improvements in and connected with louvre constructions for windows and the like
IPC: E06B7/082
Filed: 1930-04-16
Abstract: 352,561. Louvre ventilators ; windows. STONE & CO., Ltd., J., Deptford, London.-(Powell, F. ; c/o Jardine Engineering Corporation; Tientsin, China.) April 16, 1930, No. 12045. [Classes 20 (iii) and 137.] A louvre ventilator more particularly for use in connection with windows or ventilating openings for railway carriages comprises brass plates a secured by screws d to the inside of each stile b of a sliding sash and formed with a number of inclined slots e for receiving the ends of horizontal slats f which project through the slots into vertical grooves g formed in the stiles b. The upper and lower horizontal rails i, h of the sash frame have their lower and upper edges respectively cut away as at l so as to incline in the same direction as the slats. A louvre ventilator constructed in this manner may form a lower sash of a window, co-operating with an upper glazed sash, both sashes being provided with fasteners which may be of the kind described in Specification 352,562, [Group XXV].
Patent GB-552144-A (GB)
Title: Improved surface-coated rubber products
IPC: C08J7/04
Filed: 1941-09-19
Abstract: 552,144. Coating surfaces. DU PONT DE NEMOURS & CO., E. I. Sept. 19, 1941, No. 12115. Convention date, March 14. [Class 95] [Also in Groups VIII and IV] Rubber or rubberized articles, especially rubber-coated fabrics, are coated with a composition comprising a synthetic linear polyamide of the kind described in U.S.A. Specifications 2,071,253, 2,130,948 and 2,224,037 and a phenolaldehyde resin. Preferred resins are those prepared from formaldehyde and phenol, m-cresol, 2, 2-di-(4-hydroxyphenyl)-propane , p, p<SP>1</SP>-dihydroxy-diphenyl, resorcinol and sym-xylenol. In place of formaldehyde, propionaldehyde, butyraldehyde and furfuraldehyde may be used. The composition may include other resins, fillers, dyes, extenders, plasticizers, e.g. butyl-phthalylbutyl-glycollate, pigments, hardening catalysts, e.g. hexamethylene, tetramine, oxalic and phosphoric acids and antioxidants. It may be applied as a solution, dispersion, melt or preformed film. The rubber base may be treated before or after coating with sulphur chloride. The coating may be baked, e.g. by radiant heat, and the rubber may be simultaneously vulcanized. Ornamental two-tone effects may be produced by applying to embossed rubberized fabric a base colour coat, removing it from the ridges of the embossing, drying and then applying a clear coat of the polyamide-resin composition. The composition may be applied to golf-balls, side walls of tyres, windscreen wipers, engine mounts, petrol hose, footwear and rubber-coated wire. Example 3 describes the preparation of a resin by heating together 2, 2 - di - (4 - hydroxyphenyl) - propane, aqueous formaldehyde and aqueous sodium hydroxide, stopping the reaction by addition of cold water when the clear point is reached, neutralizing with dilute hydrochloric acid, washing the resin layer with cold water and removing excess water by heating under reduced pressure. There are also described (Example 1) an interpolyamide prepared by heating together hexamethylene diammonium adipate, hexamethylene diammonium sebacate and caprolactam; a polyester-amide (Example 3) prepared by heating together hexamethylene diammonium adipate, adipic acid and ethylene glycol first at atmospheric pressure and then at reduced pressure; a polyamide (Example 4) prepared by heating hexamythelene diammonium adipate with piperazine sebacate as in Example 3.
Patent GB-494725-A (GB)
Title: Improvements in or relating to drip catching attachments for brushes
IPC: A46B11/00
Filed: 1937-04-28
Abstract: 494,725. Brushes &c. TALATI. F. P. April 28, 1937, No. 12125. [Class 19] A shaving, paint, or like brush is provided with a detachable drip catcher 4 in combination with a hollow handle 1 closed at the bottom by a removable closure 7. One or more perforations 14 allow drainage into the handle. The member 4 may slide on the handle or be threaded to screw on to the handle or may be clamped thereon by a screw. The drip catcher may be flared at its outer edge or alternatively may have an inturned edge. In another modification, the edge may be beaded. The member may be made of rubber, or of rigid materials, and may have an inset of soft spongy rubber or cotton or other absorbent material.
Patent GB-572887-A (GB)
Title: Improvements in radiator tubes and radiators
IPC: F28F11/06
Filed: 1941-09-19
Abstract: 572,887. Cooling radiators for aircraft. BRAMSON, M. L. Sept. 19, 1941, No. 12171. [Class 64 (iii)] [Also in Group XXIX] To prevent leakage of cooling fluid through a fractured tube of a radiator in which the cooling fluid is circulated at a pressure above atmospheric, each tube 5 is provided at its inlet end in the upper header 6 of the radiator with a valve 12 which remains open during normal operation of the radiator but closes when the flow of cooling fluid increases by leakage through a fracture. The outlet end of a tube in the bottom header 7 is provided with a non-return valve 10. The valves consist of leaf springs on the sides of open sided boxes over the ends of the tubes, the springs at the inlet end of a tube being normally bowed while those at the outlet end are flat.
Patent GB-737291-A (GB)
Title: Improvements in or relating to steroid compounds
IPC: C07J75/00
Filed: 1953-05-01
Abstract: The invention comprises a cyclopentanophenanthrene compound having at C-17 a side chain of the formula <FORM:0737291/IV (b)/1> wherein Ac is an acyl group derived from a lower aliphatic acid containing not more than five carbon atoms and R is hydrogen, hydroxy, alkoxy or acyloxy and the preparation thereof by reacting the corresponding 17a -hydroxy-20-keto compound with the anhydride of a lower aliphatic acid.  The reaction may be effected at a temperature in excess of about 100 DEG  C. in the presence of an acid catalyst, e.g. hydrochloric, sulphuric or p-toluene sulfonic acid.  Examples disclose the preparation of allopregnene - 17a ,21 - diol - 3,11,20 - trione 17,21-diacetate, pregnane - 3a ,17a ,21 - triol - 11,20-dione - 3,17,21 - triacetate, D 4 - pregnene-17a ,21 - diol - 3,11,20 - trione 17,21 - diacetate pregnane - 3a , 17a  - diol - 11,20 - dione 3,17-diacetate.  Specific starting materials mentioned are D 4 - pregnene - 3,11,20 - trione - 17a  - ol-21 - methoxy, allopregnane - 17a ,21 - triol - 20-one 3,21 - diacetate, D 4 - pregnene - 17a ,21-diol - 3,20 - dione 21 - acetate, allopregnane-3,17a  - diol - 20 - one - 3 - acetate, D 4 - pregnene - 17a  - ol - 3,20 - dione, D 4 - allopregnene-17a  - ol - 20 - one and pregnane - 17a ,21 - diol-3,11,20-trione 21-acetate.
Patent GB-467127-A (GB)
Title: Improvements relating to press guards
IPC: F16P3/06
Filed: 1936-04-30
Abstract: 467,127. Machinery guards. E.M.B. CO., Ltd., CATLIN, L. A., ABBERLEY, J., and WOODMAN, P. T. April 30, 1936, No. 12284. [Class 80 (iv)] A vertical gate G is hinged by means of a spindle e, at the bottom end of which is a cam g. A spring-pressed pin h bears on the cam and at the other end is opposite, when the machine is at rest, a slot k in a plunger j connected by a rod i with the setting-on mechanism. If the gate is moved from the closed position shown the cam pushes the pin into the slot k to prevent the machine being started. A second gate G<1> with duplicate cam-and-pin mechanism may be used.
Patent GB-663888-A (GB)
Title: Multiple-ply corrugated paper padding
IPC: B31D3/00
Filed: 1949-05-09
Abstract: 663,888. Cushioning pads of cartons &c. LADNER, O. L. May 9, 1949 [March 17, 1949], No. 12286/49. Class 18. [Also in Group VIII] Pads 5, formed by applying adhesive to corrugated paper rolling up loosely, shaping &c. under heat and pressure, and cutting to length, are adhered to walls 7, 8 of an insert for a carton &c.
Patent GB-685861-A (GB)
Title: Improvements in or relating to chassis for mounting electrical components
IPC: H05K7/02
Filed: 1950-05-17
Abstract: 685,861. Radio receiving apparatus. GENERAL ELECTRIC CO., Ltd., BRABHAM, H. B. S., and TOWNSEND, G. B. May 17, 1951 [May 17, 1950], No. 12365/50. Class 40 (v). A chassis for radio or telecommunication apparatus comprises a pair of frames 1, 2, Fig. 1, secured together so that parts of the first frame lie on either side of the second, each frame comprising members 5 which are provided with a plurality of fixing holes for the attachment of a number of standard components 12. Items which may be mounted in this way include a tagboard, Fig. 2, comprising a metal plate in which soldering tags 18 are formed by punching and bending, a tagboard comprising tags mounted on an insulating panel, and a similar panel carrying a valve holder.
Patent GB-1393315-A (GB)
Title: Machine tool for generating an epitrochoidal surface
IPC: B24B19/09
Filed: 1973-03-14
Abstract: 1393315 Grinding TOYODA KOKI KK 14 March 1973 [21 March 1972] 12377/73 Heading B3D Apparatus for generating an epitrochoidal surface includes a rotating sleeve 12 which rotatably carries a work spindle 11 with a given eccentricity with respect to the sleeve and is mounted on a work heed 2 adapted for pivotal motion about an axis P passing through the line of contact of a workpiece W and a grinding tool 8 rotatably carried by a tool rest 6. A gear 31 is secured to the work head 2 in concentric relationship with the sleeve 12, a gear 34 is secured to one end of the workspindle 11, and gears 32, 33 meshing with the gears 31, 34 respectively are fixedly mounted in co-axia relationship with each other on a support shaft 35 rotatably carried by the sleeve 12. The sleeve 12 is connected with a drive source for imparting via the gears 31-34 to the workspindle 11 a given rate of rotation relative to its rate of revolution about the axis of the sleeve 12. The work head 2 is supported on the upper surface 10 of a fixed bed 1 for oscillation about a pivot 20 coaxial with the axis P, and the bed 1 carries slides 4a for a saddle 5 having guides 5a for the tool rest 6. Adjustment of the saddle along the slides compensates for dressing of the grinding wheel 8 by a tool 9a. The wheel 8 may be reciprocated vertically during grinding. A drive source is coupled to a bevel gear 47 which via gears 46, 44 coaxial with the pivot 20, drives gears 43 and 42 supported on a common shaft in the work head 2. Drive from the gear 42 is transmitted to a worm 41 and thence to a worm-wheel 40 fixed to the sleeve 12, and is also transmitted via gears 53 and 52 to a crank arm 50 having a slider 55 received and guided in a groove 57 in a block 56 fixed to the bed 1 so as to produce the oscillation of the work head 2. Each of the gears 31, 34 may be in two parts interconnected by a spring to prevent backlash.