baber/WOPTO huggingface dataset:
Patent GB-424928-A (GB)
Title: Improvements in variable speed-ratio transmission mechanism
IPC: F16D23/04
Filed: 1934-05-10
Abstract: 424,928. Controlling variable-speed gearing. FLEISCHEL, G., Bleneau, Yonne, France. May 10, 1934, No. 14211. Convention date, May 11, 1933. [Class 80 (ii)] An isolating claw clutch b<1>, b<2>, Fig. 1, between variable-speed gearing o and a propeller sleeve a<2> say of a vehicle is synchronized by friction clutch cones c<1>, c<2> one of which, c<1>, slides axially relatively to its claw member b<1>, and between a sleeve f of the cone c<1> and the member b<1> there is provided, instead of a spring, as usual, means h for producing friction. As the slidable claw member b <1> is slid right on its shaft a<1> towards the position of engagement, the cone c<1> engages the cone c<2> and the friction means h holds the member b<1> against continued axial motion until the cones have brought about synchronism of the clutch claws. In Fig. 3, the friction means is shown as a coned ring h<3> of friction material tightened against the sleeve f by a screwing cone h<4>. In Fig. 4 an arrangement is shown in which the friction means is in the form of centrifugal blocks h<5> with springs h<6> assisting the radial thrust. The clutch b<1>, b<2> is engaged by a spring d<1>, Fig. 1, and is disengaged along with a main clutch q when a pedal p is depressed. When the pedal p is allowed to rise to connect the drive after a change of speed has been effected by, say, a lever o<1>, its rise is arrested by a stop s while the clutch b<1>, b<2> is being synchronized. On completion of the engagement of the clutch b<1>, b<2>, the stop s is lifted clear through a link l, and the pedal p is freed to rise farther to let in the main clutch. In a modified form of clutch shown in Fig. 10, it is the rear member b<2> that is axially moved. There is friction material at h between the member b<2> and the sleeve f. A projection and slot connection b<a> allows limited angular displacement of the sleeve f which carries the cone c<2>, and an apertured partition e obstructs the passage of the clutch claws g<2> of the member b<2> unless synchronism has been effected. This sleeve f is screwed and its relative turning slides a nut l<1> which is connected through a link n to a control of the engine throttle superposed on the accelerator control so that the engine itself is timed automatically to facilitate the engagement of the positive clutch without shock. Specifications 356,139, 406,884, 408,599, and 420,620 are referred to.
Patent GB-255597-A (GB)
Title: Unbreakable wings or mudguards for motor vehicles
IPC: B62D25/16
Filed: 1925-05-29
Abstract: 255,597. Lass, A. H., and Sandwell, G. H. May 29, 1925. Mud-guards of rubber or other flexible material are formed from a flat sheet of rubber &c. stiffened by a spring steel or other metal or wooden strip E secured by the usual stays A, B. .The strip is disposed along or near the centre line of the sheet F of rubber &c.
Patent GB-1186411-A (GB)
Title: Imadazoline Betaine Derivatives and their use as Detergents
IPC: D06L1/04
Filed: 1967-03-29
Abstract: 1,186,411. Imidazoline betaines. EMERY INDUSTRIES Inc. 29 March, 1967 [4 April, 1966], No. 14374/67. Heading C2C. [Also in Division C5] Imidazoline betaines of the formula wherein R is a C 8-21  hydrocarbyl group, R 1  is a C 1-6  alkyl or hydroxyalkyl group, and x is 2 or 3, may be obtained by reacting betapropiolactone or γ-butyrolactone with an imidazoline of the formula by maintaining the amine in the liquid phase and gradually adding the beta-propiolactone while maintaining the temperature at 50- 75‹ C. until the free amine value is reduced to an amount indicating at least 75% conversion to betaine.
Patent GB-1222189-A (GB)
Title: Improvements in and relating to shielding containers
Inventor: BRISAC MICHAEL
IPC: G21F5/005
Filed: 1969-03-19
Abstract: 1,222,189. Shielded containers. COMMISSARIAT A L'ENERGIE ATOMIQUE. 19 March, 1969 [29 March, 1968], No. 14445/69. Heading B4Q. In a shielded container for transporting radioactive substances, thermal insulation is provided to afford protection against external fire. In Fig. 1, the radio-active substance 5 is surrounded by the lead wall 2 within the steel envelope 3. To provide thermal insulation the bands 9, and slab 10, formed of asbestos, cement composition or a water-saturated substance, are mounted between 2 and 3. Mechanical shocks are absorbed by the lead mass contacting the envelope 3 between the zones 9, 10. In a modification the container is cylindrical. In an alternative form, Fig. 4, a conventional container 28 for transporting radio-active substances, may be mounted inside the concentric steel envelopes 30, 31 which are separated by wood blocks 32 and thermal insulators 33.
Patent GB-317146-A (GB)
Title: Improvements in, and relating to, collapsible struts, and other prop-like devices, such as pit-props
IPC: E21D15/12
Filed: 1928-05-16
Abstract: 317,146. Bramah, J. H. May 16, 1928. Mine props are formed of two hollow or solid members a, b with inclined abutting faces c retained in contact by a two-part rotatable sleeve e each part of which is provided with corresponding inclined abutting faces so that, when the whole of the abutting surfaces register, the two parts of the prop may be moved laterally with respect to each other. The sleeve is disposed between collars d fixed to the members. In order to prevent the two members becoming entirely separate, an external chain attached to each is used, or alternatively a pivoted link h is used having a pin and slot connection k with one part, and with bearing surfaces n to contact with the internal sides of the members in the collapsed position. The lower portion of this link rests on a spring plate which is depressed during collapse and helps to restore the prop to working position again. When the members are hollow, side fillings o of wood are disposed on each side of the link and these fillings are also provided with inclined contacting faces at the joint. Removable packing may be used in the lower end of the prop to enable its length to be varied.
Patent GB-1393622-A (GB)
Title: Powder metallurgy forging
IPC: C22C33/02
Filed: 1973-03-26
Abstract: 1393622 Powder metallurgy forging INTERNATIONAL NICKEL Ltd 26 March 1973 [27 March 1972 30 May 1972] 14463/73 Headings C7A and C7D]  Pore free powder metallurgical bodies are made by forging a body of pre-alloyed powder at such a temperature that the alloy has a two phase structure, each phase constituting at least 4% by volume of the alloy, one phase being F.C.C. and the other being B.C.C. or body centred tetragonal. The process may be applied to powders of the following compositions:-
Patent GB-1423735-A (GB)
Title: Filaments of crystalline plastics and method for manufacture thereof
IPC: D02J1/22
Filed: 1973-03-26
Abstract: 1423735 Drawing and stretching cooled plastics filaments AGENCY OF INDUSTRIAL SCIENCE & TECHNOLOGY 26 March 1973 [30 May 1972] 14475/73 Heading B5B Filaments of nylon, polyester (e.g. polyethyleneterephthalate), or polyolefin (e.g. polyethylene or polypropylene) are melt spun and drawn as they emerge from the spinneret, and further stretched at a temperature below the glass transition temperature after rapid cooling, and the temperature is then allowed to rise again. Drawing takes place generally in a cooling bath of a liquid hydrocarbon, e.g. n-hexane, alcohol, or carbon tetrachloride which is kept below - 30 C. by dry ice but in some circumstances air may be the cooling medium. The draw ratio may be up to 123. The stretching is carried out below the glass transition temperature in a ratio of 4 : 1 to 8 : 1 and the filaments are then heated so that crystallization occurs.
Patent GB-1056165-A (GB)
Title: Improvements in or relating to the manufacture of ring shaped steel parts
IPC: B21D53/26
Filed: 1964-04-08
Abstract: 1,056,165. Making rings. REGIE NATIONALE DES USINES RENAULT. April 8, 1964 [April 26, 1963], No. 14612/64. Heading B3A. A method of making a large diameter flat ring-shaped steel part, e.g. a starter ring blank, of a rectangular radial cross-section comprises cold blending a round rolled steel bar into a helix, cutting the helix to form rings, welding the two ends of each together and heating the rings sufficiently to permit swaging thereof into the desired rectangular section.
Patent GB-1176795-A (GB)
Title: Digital-to-Analogue Converter.
Inventor: HAMMOND JOHN ANTHONY GORDON
IPC: H03M1/00
Filed: 1966-04-01
Abstract: 1,176,795. Generating trigonometric values. SPERRY RAND Ltd. 31 March, 1967 [1 April, 1966], No. 14520/66. Heading G4H. A converter for producing electrical signals proportional to sine and cosine functions of an angle # comprises a transformer 11 having a centre earthed secondary winding 13 tapped to produce signals in the ratio of the tangent of an angle A, variable in 10 degree steps, which signals are applied to a pair of auxiliary transformers 20, 21 having ratios variable in steps corresponding to the tangent of angles B having 1 degree steps, A + B being equal to #. The outputs are in the ratio (tan A + tan B): (1 - tan A- tan B) which equals the ratio sin # : cos 0. The wiper 16 giving the coarse cosine signal is connected in series with the secondary winding of transformer 21, and wiper 17 for the coarse sine angle is connected in series with the secondary of transformer 20. For an angle less than 90 degrees, say 44 degrees, both values are taken from the upper, positive side of the secondary 13. The upper end is connected to + 1 volt and the lower end to - 1 volt so that for other angles, negative values are available. After setting wipers 16 and 17, e.g. to 40 degrees, wipers 23 and 24, which are ganged together, are set to tapping points corresponding to the units value e.g. 4 degrees. The output from wiper 23 will then be cos 40-sin 40À tan 4 and that from 24, sin 40 + cos 40À tan 4. The ratio of these values is sin 44/cos 44. The two signals are applied to the stator windings of a synchro 28, the rotor then producing a voltage representing the difference between its shaft angle and the converted angle 44 degrees. Another method of using the converter is adopted when the sine or cosine of the angle is greater than 0À776. In this the wiper 16 is set to the end tapping giving + 1, and wiper 17 is set to a tapping proportional to tan A. Wipers 23 and 14 are both set to tan B. The outputs are then tan A + tan B and 1 - tan A- tan B which again have the ratio sin #/cos #. By using the negative side of the transformer 11  trigonometrical values can be obtained for all angles up to 360 degrees.
Patent GB-395842-A (GB)
Title: Improvements in or relating to electrolytic condensers
IPC: H01G9/04
Filed: 1932-05-23
Abstract: 395,842. Electrolytic condensers. NAAMLOOZE VENNOOTSCHAP PHILIPS' GLOEILAMPENFABRIEKEN, 13D, Emmasingel, Eindhoven, Holland. May 23, 1932, No. 14591. Convention date, March 9. [Class 37.] An electrolytic condenser has at least one fixed electrode with a permanent oxide film in the form of a rod having longitudinal ribs 1, the section throughout the rod being uniform. The upper part of the rod is turned to a disc 2, pin 3, and screwthreaded portion 4 by which it is secured in the container with the interposition of a rubber ring. The part 2 may have a central screwthreaded hole and may be conical in shape to dispense with the rubber ring. The ribs 1 may be corrugated to increase their surface area.
Patent GB-247812-A (GB)
Title: Improvements relating to spindle bolsters for spinning mules
IPC: D01H7/20
Filed: 1925-06-05
Abstract: 247,812. Cocking, H., Turner, T., Spencer, W. E., Hargreaves, J. K., and Eaves, A. R. June 5, 1925. Spindle apparatus. - In a bolster for a mule spindle oil is supplied through an inclined hole b, Fig. 1, near the top of the bolster a. The bolsters are formed with lugs a<1> for attachment to the rail and grooved lugs d, which when the bolsters are mounted on the rail form a distributor for the oil and direct the oil to the holes b. The hole b leads downwards to the bearing hole which is provided with an annular groove c, Fig. 4, to reduce upward creeping of the oil. The upper end of the bolster stands above the groove in the lug d. The groove c may be filled with packing.
Patent GB-660936-A (GB)
Title: Improvements relating to fire-extinguishing apparatus
IPC: A62C13/00
Filed: 1949-05-31
Abstract: 660,936. Siphon bottles. PYRENE CO., Ltd., and SMYE, A. May 31, 1950 [May 31, 1949], No. 14615/49. Class 14 (i). In a fire-extinguisher comprising a container 2 filled with fluid under pressure and provided with a spring-closed lever-operated valve 12, the lever 30 is pivoted at its lower end 32 between flanges 26 on the extinguisher head 4 and has an inwardly extending rose 34 at its upper end co-operating with a roller 36 carried by the upper end 38 of the valve stem 18.
Patent GB-238655-A (GB)
Title: Improvements in wander plugs for use with high tension batteries and the like
Filed: 1924-06-21
Abstract: 238,655. Hunt, A. H. June 21, 1924. Plug couplings; two-part couplings.-A wander plug a for use with high tension batteries and having a split or tapered contact member g, is secured to a lead e by means of a conical point c upon which the end of the lead is pressed by a cap d of insulating material. The lead passes through an axial aperture in the cap, which screws over the pointed end of the plug. A collar f divides the contact member g from the screwed end.
Patent GB-852058-A (GB)
Title: Improvements in or relating to apparatus for use in coal washing tanks
Inventor: SCHANNE LOTHAR
IPC: B03B5/24
Filed: 1959-04-29
Abstract: 852,058. Jigs. SAARBERGWERKE A.G April 29, 1959 [Oct. 9, 1958], No.14668/59 Class 82(2) The level of shale in a coal separation jig operated by compressed air supplied to a chamber to impart pulsations to the water is controlled by a displaceable device responsive to the thickness of the shale layer which controls the discharge of air from said ohamber and can also control the supply of air to said chamber when the device is moved beyond certain limits. As shown, a float 5 rises and falls with shale layer 3. When it rises, rod 6 displaces shaft 11 and valve members 13 and 14 to the right, completing a fluid pressure circuit from pipe 15a to pipe 16 and to the top of piston 19. This moves downwardly together with rod 20 and valve member 21 which restricts outlet orifice 23 of air chamber A and thus increases the amplitude of the pulsations imparted to the bed of material being separated. Simultaneously, downward movement of piston 19 pivots plate 26 about pin 27 and rod 29 displaces a stud 30 in groove 31 of disc 32 which is attached to a diametrical pin 34 and butterfly valve 35. If the level of the shale does not respond to the increased amplitude of pulsation caused by the partial closure of orifice 23, further downward movement of piston 19 causes stud 30 to engage the end of groove 31 and rotate butterfly valve 35 to increase the supply of compressed air to chamber A and thereby further increases the amplitude of pulsation. When float 5 regains its normal position butterfly valve 35 resumes its normal position under the influence of spring 40. If the level of float 5 falls so that valve members 13 and 14 move to the left, pressure is communicated from pipe 15b to pipe 18 and to the underside of piston 19. The system automatically reduces the amplitude of pulsation by raising valve member 21 until normal conditions are restored.
Patent GB-129317-A (GB)
Title: Improvements in or relating to Deck Flying Wheels, Trucks, or Trolleys, for Aeroplane Flying Machines or other Aircraft.
IPC: B64C25/08
Filed: 1917-10-12
Abstract: 129,317. Blackburn Aeroplane & Motor Co., Booth, H., and Copley, J. W. Oct. 12, 1917. Land wheels or trollies for aeroplanes and other aircraft, adapted to be detached and left behind at the end of the run in starting, are carried by stub-axles 9 fixed to longitudinal bars or other members 3, which are formed with one or more lips 5 and upwardly-extending faces 4 arranged to bear against corresponding faces on the float or other under-structure 1, and with upwardlyextending arms 6 attached to the float &c. by pins 8 or other readily detachable fastenings.
Patent GB-706828-A (GB)
Title: Improved parasiticide composition and method
Filed: 1952-06-12
Abstract: A parasiticidal composition of reduced phytotoxicity comprising the mon-, di-, or tri-ethanolamine salt of 2:4-dinitro-6-secondarybutyl-phenol and methyl cellulose.  The compositions may be in the form of a finely divided powder or an aqueous solution.  A suitable wetting and dispersing agent, for example sodium lauryl sulphate, alkali metal salts of aromatic sulphonic acids and esters of sulphated aliphatic compounds, and other adjuvants such as mutual solvents, freezing point depressants, stabilizers and supplementary toxicants may also be present.
Patent GB-868322-A (GB)
Title: Improvements in piston rings and piston-and-ring assemblies
Inventor: CROSS ROLAND CLAUDE
IPC: F16J9/00
Filed: 1959-05-01
Abstract: 868,322. Piston-rings. CROSS MANUFACTURING CO. (1938) Ltd. March 8, 1960 [May 1, 1959], No. 14907/59. Class 122 (1). To prevent piston slap a piston-ring consists of a number of arcuate segments at least one of which has an outside diameter less than that of the piston whereby it forms a bulge to engage the cylinder wall. The ring may be formed by two segments 3, 4, the larger, 3, being concentric with the piston 1 and the smaller, 4, having an outside diameter less than that of the piston and the segment 3, both segments having the same radial thickness which is greater than the radial depth of the ring groove 2 whereby the ring acts as a bearing- ring and the smaller segment 3 being disposed with its central radius at right-angles to the gudgeon-pin axis and on the thrust side of the piston. In a modification, Fig. 3 (not shown), the ring comprises four segments of equal circumferential length and all having an outside diameter less than that of the piston. Specifications 589,003, 801,199 and 841,975 are referred to.
Patent GB-352633-A (GB)
IPC: B61K7/12
Filed: 1930-05-15
Abstract: 352,633. Eddy current rail brakes. SIEMENS - SCHUCKERTWERKE AKT.- GES., Siemensstadt, and GES. FœR OBERBAUFORSCHUNG, Europahaus, Stresemannstrasse, both in Berlin. May 15, 1930, No. 15035. Convention date, Nov. 12, 1929. [Class 103 (i).] Current is supplied to eddy current rail brakes through a polyphase metallic vapour rectifier 2 fed by a transformer 1 on either the primary or secondary side of which is provided a variable polyphase choke 4 in order that the current supplied to the brakes may be regulated. Variation of the amount of inductance in circuit is effected by shortcircuiting switches 6, 7, 8 connected across parts of the choking coils.
Patent GB-438446-A (GB)
Title: Directional radio transmitting arrangements particularly applicable for determining bearings
IPC: G01S1/02
Filed: 1934-05-18
Abstract: 438,446. Directive wireless signalling. LORENZ AKT.-GES., C., 1, Lorenzweg, Tempelhof, Berlin. May 18, 1934, No. 15064. Convention date, July 13, 1933. Addition to 405,727. [Class 40 (v)] The parent Specification relates to a transmitting arrangement for course determination comprising a continuously energized dipole aerial associated with reflecting dipoles which are alternately keyed to obtain two sets of complementary signals in different directions to define a course on which both are received at equal signal strength. In the present invention the energized dipole E is fixed and the reflecting dipoles R1, R2, are mounted on a platform Z which is rotated by a worm W and sleeve U mounted on ball bearings Y, thus producing a rotating equi-signal zone. The dipoles R1, R2, are keyed by magnets M1, M2 supplied from sources B, C through a rotary commutator K, brushes Q and sliprings M. Dots are sent in one direction and dashes in the other so related that a continuous signal denotes the equi-signal line, and a non-directional signal is sent from aerial E when said line is pointing north. By sending the dots at intervals corresponding to a predetermined angle of rotation, the bearing of the transmitter can be determined by the number of dots received between the receipt of the north signal and the equisignal line.
Patent GB-260901-A (GB)
Title: Improvements in or relating to buoyant wearing apparel for swimming or life-saving purposes
IPC: B63C9/115
Filed: 1926-06-15
Abstract: 260,901. Adams, J. B. June 15, 1926. Buoyant body attachments.-Relates to buoyant jackets of the type having front and rear upper and lower buoyant members and in which the lower buoyant member is hingedly connected to the upper. According to the invention a reversible jacket is provided having two similar upper buoyant members 10, 15 with corresponding lower buoyant members 11, 16 hinged attached thereto. The lower buoyant members swing out horizontally when the jacket is in use.. The buoyant members are made from canvas &c. and filled with kapok &c. or are inflated. Shoulder straps 17 connect the upper members and draw-strings 19 which are positioned by eyelets or loops 20 are provided for securing the jacket. Instead of the eyelets 20, tubular fabric members secured to the upper compartments in a known manner may be employed, through which the draw-strings pass. The straps 17 may be replaced by a strip of fabric.
Patent GB-720979-A (GB)
Title: Method for staining glass, stained glass article and glass staining composition
Inventor: LEVI ORMONDE SOLON
IPC: C03C17/10
Filed: 1953-06-01
Abstract: 720,979. Staining glass. VERD-A-RAY PROCESSING CO. June 1, 1953, No. 15180/53. Class 56 Glass is stained by coating it with an aqueous or oil dispersion containing copper, silver and zinc salts and an inorganic or organic chloride and then heating it to about 800 to 1,100‹ F. The ratios of the three metals and chloride are specified and examples given. The chloride content may be provided by using the chloride of one or more of the three metals. Ochre may be added to the dispersion.
Patent GB-410971-A (GB)
Title: An improved process for making potassium oxalate from potassium formate
IPC: C07C51/41
Filed: 1933-05-26
Abstract: Potassium oxalate is produced from potassium formate at temperatures below 350 DEG  C., if necessary with the addition of alkali, by leading an inert gas through the melt at normal pressure.  According to examples the formate is heated at 340 DEG  C. (1) with a stream of nitrogen (2) with hydrogen and (3) also with a subsequent heating to 420 DEG  C.
Patent GB-662274-A (GB)
Title: Propulsion and steering mechanism for wheeled toys
IPC: A63H30/00
Filed: 1949-06-09
Abstract: 662,274. Mechanical toys. ERNST, M. June 9, 1949, No. 15359/49. Class 132 (iii). A manually operated driving and steering mechanism for wheeled toys comprises a control mechanism h having a crank drive connected to an outer cable member g and a plunger l joined to an inner wire k. Wheel c is thus driven by the turning of the outer cable and the toy is steered by the plunger l controlling the movement of the wire k on the pivoted plate n. Specification 662,275 is referred to.