baber/WOPTO huggingface dataset:
Patent GB-1382384-A (GB)
Title: Leafspring mounting arrangements
IPC: B60G11/113
Filed: 1973-04-06
Abstract: 1382384 Leaf spring connections DAIMLERBENZ AG 6 April 1973 [20 April 1972] 16658/73 Heading B7D  In a leaf spring connection including a pad 3 of flat steel bar disposed between the spring 2 and a saddle 4 on an axle 5, the ends of the pad 3 are rolled inwards away from the spring 2 to avoid stress concentrations in the adjacent leaf 1 of the spring at the ends of the pad. The rolled ends of the pad 3 engage the saddle at least in the loading condition of the spring. The pad 3 may have a hole for accommodating the core bolt of the spring and lateral recesses for receiving the U-bolts.
Patent GB-342632-A (GB)
Title: Improvements relating to stair carpet holders
IPC: A47G27/06
Filed: 1930-05-30
Abstract: 342,632. Stair-carpet holders. DAVIES, H. and ROGERS & CO., J., Virgil Street, Manchester. May 30, 1930, No. 16725. [Class 52 (v).] A stair-carpet holder consists of a strip of metal, stamped to a curved form in cross section, for endwise engagement with a curved slot g in an eye a formed by stamping a strip of metal to a curved form, a part d being slitted from the remainder along its sides and raised so as to provide the curved slot. The arm has a shoulder or projections to engage one edge of the eye.
Patent GB-675972-A (GB)
Title: Improvements in or relating to lithographic plates
Inventor: BRISLEE FRANCIS JOSEPH
IPC: B41N1/10
Filed: 1949-06-23
Abstract: 675,972. Printing-surfaces. S.D. SYNDICATE, Ltd. July 12, 1950 [June 23, 1949], No. 16745/49. Class 100 (ii). A planographic printing plate comprises a plate of stainless steel having etched cavities lined with copper or brass. The plate may be produced by chemically or electrolytically etching the ink-repellent stainless steel protected by a resist, such as ammonium bichromate and glue burnt in, the ink-retentive copper or brass being electrolytically deposited to a depth of 0.001- 0.005 inch before removal of the resist. A thin nickel coating may be deposited before the copper to improve adhesion. Specification 483,349 is referred to.
Patent GB-546174-A (GB)
Title: Improvements in apparatus for selectively illuminating parts of pictures
IPC: G09B5/06
Filed: 1940-11-26
Abstract: 546,174. Picture display apparatus associated with gramophone records. RUSSELL, W. L., and SANDOR, N. Nov. 26, 1940, No. 16943. [Class 40 (ii)] [Also in Group XVIII] A display apparatus comprises in combination an unenclosed picture or diagram on translucent material, a number of light-tight compartments at the back allocated to different parts of the picture and containing one or more electric lamps, and a selector switch adapted to couple the lamps successively with a source of supply either singly or in groups. The apparatus is intended for use in conjunction with a gramophone record of a lecture related to the picture. The selector switch may be operated by hand at the appropriate stages of the lecture, or may be operated automatically under control of certain frequencies from the gramophone record in known manner. As shown, the picture representing an aeroplane is drawn on translucent paper 10 secured to the inner face of a glass sheet 11. Light-tight compartments 18 are provided behind the propeller spinner 13, the engine fairing 14, the wing 15, the rudder 16, the tail fin and tail plane 17, and the landing gear 7. Each compartment may be formed by bending a strip of flexible material to shape and securing its edges to the back of the translucent material. The compartment may cover a larger area than required, the unwanted area within the compartment being rendered opaque. Each compartment may contain one or more lamps ; lamps of different colours may be used for illuminating the same compartment at different stages. The lamps may be carried by a backing 21 lined with felt 22 and clamped behind compartments in light-tight manner. The selector switch may comprise one or more arms 25, Fig. 3, rotated step by step over contacts 24 connected to the desired lamps 20. The selector switch may be actuated by a ratchet pawl 28 on the armature 29 of an electromagnet 33 controlled by a push-button switch 8 or by a relay 46 itself controlled by a specific frequency from a gramophone record 37. The pick-up 38 associated with the record is connected to an amplifier 39. The speech currents are transmitted to a loud speaker 41 through a coupling 43, a volume control 44 and a power valve 40. The predetermined frequencies specially recorded at certain times to control the display apparatus are transmitted through a tuned coupling 47 to an amplifier 45 operating the relay 48. In a modification, three separate control frequencies are used and' three separate tuned channels are provided for operating three separate relays controlling three separate selector switches. Several selector switches may be arranged in parallel to multiply the number of circuits controlled at each stage. Several detector switches may be arranged to operate successively, the arrival of one selector switch at its last step operating a change over switch to transfer the operation to the next selector switch. This multiplies the available number of steps.
Patent GB-109890-A (GB)
Title: Improvements in and relating to Controlling Apparatus for Electric Motors.
Inventor: JAMES HENRY VINCENT
IPC: H02P5/00
Filed: 1916-11-27
Abstract: 109,890. James, H. V. Nov. 27, 1916. Controllers, actuating-mechanism for. - The controller of the main working motor of a system is operated by a pilot motor with two oppositely wound armature windings. Switches 5, 6 are included in the two armature circuits, so that, if a switch 5 is closed, the controller will be moved in one direction, and if a switch 6 be closed, the controller will be moved in the opposite direction. The armatures of two separate motors may be coupled together electrically and mechanically to work in a similar fashion.
Patent GB-561760-A (GB)
Title: Improvements in milk coolers
IPC: A01J9/04
Filed: 1942-12-01
Abstract: 561,760. Milk coolers. THOMPSON BROS. (BILSTON), Ltd., HUTCHESON, A. M., BENNETT SONS & SHEARS, Ltd., and HUTCHESON, W. W. Dec. 1, 1942, No. 17062. [Class 64 (iii)] Milk in a receptacle A is cooled by rotating water tubes b having straight portions connected by radial portions to central inlet and outlet chambers communicating with hollow hubs supporting the tubes in bearings d, d<1>. The water flows through an outer ring of tubes b, then returns through an inner ring b<1> to the closed end of a central chamber b<2> opening through a hollow hub to the outlet G.
Patent GB-311959-A (GB)
Title: Improvements in and relating to lamps for power driven vehicles
IPC: B60Q1/124
Filed: 1928-06-13
Abstract: 311,959. Hansen, R. June 13, 1928. Wheel-guards. -A bar 12, pivoted to arms 11 on the lamp spindles 5 and carrying at each end, a roller 13 adapted to be engaged by the rim of the adjacent front wheel 1 so as to turn the lamps in the direction of steering, is provided with arms 14 projecting in front of the wheels so as to constitute a protective guard.
Patent GB-725072-A (GB)
Title: Chin support for anaesthetized patients
IPC: A61G13/12
Filed: 1953-06-22
Abstract: An appliance for supporting the chin of an anaesthetized patient so as to prevent the mouth opening comprises a G-clamp for fitting to the head end of the operating table and having a projecting spur on the upright limb.  This spur is used to anchor the ends of a strap which is passed downwards around the patient's chin.  A number of optional holes are provided in the strap for this purpose so that the effective length may be adjusted as necessary.
Patent GB-963598-A (GB)
Title: Improvements in and relating to getter devices
IPC: H01J7/18
Filed: 1961-05-11
Abstract: 963,598. Discharge apparatus. S.A.E.S. S.p.A. May 11, 1961 [Feb. 4, 1961], No. 17216/61. Heading H1D. A getter device, e.g. for maintaining the vacuum of an electron discharge tube, comprises one or more tablets of non-vaporizable getter material mounted on a perforated metal support in such a way as to leave two major surfaces of the or each tablet exposed. Several tablets may be supported on one or both faces of a sheet of gauze or expanded metal 5, with apertures 2a, 2b, 2c.
Patent GB-403892-A (GB)
Title: Process for the manufacture of derivatives of di- or trimethoxy-and -ethoxy-benzoic acids
Filed: 1933-06-16
Abstract: Dimethyl- and diethylamides of di- and trimethoxy- and -ethoxybenzoic acids are prepared from the corresponding acids by known methods. The products have therapeutic properties.  In examples (1) a solution of veratroylchloride in ether is treated with a solution of diethylamine is ether to obtain veratric acid diethyl-amide; (2) a solution of veratroylchloride in toluene is treated with a solution of dimethylamine in toluene to obtain veratric acid dimethylamide; (3) a solution of 3.4.5-trimethoxybenzoylchloride in toluene or benzene is treated with a solution of dimethylamine in toluene or diethylamine in benzene to yield respectively 3. 4. 5 - trimethoxybenzoic acid dimethyl - and diethylamides; (5) 2 . 3 - dimethoxybenzoylchloride dissolved in toluene is treated with a solution of dimethylamine in toluene to yield 2.3-dimethoxybenzoic acid dimethylamide; (6) a solution of 3-methoxy-4.5-diethoxybenzoylchloride in ether is treated with diethylamine to yield 3-methoxy-4.5-diethoxybenzoic acid diethylamide; (7) 3.5-dimethoxy-4-ethoxybenzoyl chloride is treated with diethylamine to yield 3-5-dimethoxy-4-ethoxybenzoic acid diethylamide.  2.3 - Dimethoxybenzoylchloride and 3 . 5 -dimethoxy-4-ethoxybenzoyl chloride are prepared by treating the corresponding acids with thionyl chloride.  3 - Methony - 4 - 5 - diethoxybenzoylchloride is obtained by alkylating the 3-methylether of gallic aldehyde with diethylsulphate, oxidising the product with potassium permanganate to obtain 3-methoxy-4-5-ethoxybenzoic acid and treating this with thionyl chloride.
Patent GB-1349381-A (GB)
Title: Method of controlled polymerization copolymerization and terpoly merization of olefinic monomers
IPC: C08F10/14
Filed: 1971-05-26
Abstract: 1349381 Polymerization of cationically polymerizable monomers CESKOSLOVENSKA AKADEMIE VED 26 May 1971 [27 May 1970 8 June 1970] 17262/71 Heading C3P The polymerization of isobutylene or copolymerization of isobutylene or isobutyl vinyl ether with one or more other mono- or di-olefinic compounds susceptible to cationic polymerization is carried out in the presence of a tetravalent halide of titanium or vanadium and a compound consisting of an alkyl or aryl group and an alkali metal. The reaction is preferably carried out at 0 to - 140‹ C. in the absence of solvent, and may be accelerated by irradiation with visible or ultraviolet light. Examples describe the polymerization of isobutylene, copolymerization of isobutylene with styrene, α-methylstyrene, isoprene, butadiene, chloroprene or 2,3-dimethylbutadiene, isobutylene with isobutyl vinyl ether, and isobutyl vinyl ether with isoprene or butadiene, and terpolymerization of isobutylene, butadiene and styrene. The exemplified catalysts comprise VCl 4 , TiCl 4 , TiBr 4 , TiI 4 , or VCl 4  mixed with TiCl 4  and n-butyl or t-butyl lithium, amyl or cetyl sodium or benzyl potassium.
Patent GB-1381462-A (GB)
Title: Bending machine
IPC: B21D7/16
Filed: 1973-04-11
Abstract: 1381462 Forming L-shaped bars; forging LIVINGSTON KENHAR Ltd 11 April 1973 [1 May 1972] 17290/73 Headings B3A B3E and B3H A method of forming an L-shaped bar 15, e.g. a steel fork for a fork lift truck, comprises heating a portion of a metal bar member to soften the metal, bending the bar member to its L-shaped configuration in a die, and applying pressure longitudinally of the bar member at one end thereof to increase the thickness of the heated portion 40 of the formed bar by upsetting the softened metal. The bar member is bent after the heating step by laying the bar across a fixed die block 2 mounted on a bed 4 reinforced by fins 5, and actuating a piston 6 of a hydraulic ram 7 via control box 50. Rollers 41 facilitate the shaping at either end of the die block 2. Piston 14 of hydraulic ram 12 is then actuated to apply pressure longitudinally of foot portion 16 of the bar to upset the metal into portion 40; a packing piece 13 is provided at the end of piston 14. Piston 6 is then retracted and a cap 43 is applied to a movable die 3 before being extended to provide a precise inside radius to the heel portion.
Patent GB-640839-A (GB)
Title: Improvements in sieving machines
IPC: B07B1/38
Filed: 1948-06-28
Abstract: 640,839. Sieving-machines. ROBINSON & SON, Ltd., T., and ORMEROD, H. June 28,1948, No. 17292. [Class 117] In a sieving machine of the type in which the sieve or screen is carried in a frame a one end of which is supported and given a rotary motion by a crank b operated by a motor d and the other end of which is supported on rocking arms e or sliding supports so as to reciprocate, a plurality of canes or flexible rods i are clamped to opposite sides of the frame a and to the fixed base structure h by which the frame a is supported. The rods i prevent the frame a from swaying up and down on each side of the crankshaft axis when in operation. A link bar g is connected to the reciprocating end of the frame and to the fixed base h and prevents sideways motion of the frame at this end.
Patent GB-1533197-A (GB)
Title: D.c.voltage converters
IPC: H02M3/158
Filed: 1977-04-26
Abstract: 1533197 Automatic voltage control INTERNATIONAL STANDARD ELECTRIC CORP 26 April 1977 [30 April 1976] 17309/77 Headings G3R and G3X A controlled frequency, pulse width modulated, regulated DC-DC converter has a series switch Sl and a second switch S2 for shorting an inductor L when the sensed output voltage reaches a reference level. The first switch S1 is closed by a monostable circuit 4 responsive to the input voltage V;, clockpulses H, and a threshold set by the output tcc of a bi-stable circuit 2 which controls the second switch S2. The value of the threshold is determined by a time comparison circuit 3, so that the charging time of the inductor can be varied in dependence on the output power demand. Details of circuits 3, 4 are given, Fig. 2 (not shown). The bi-stable circuit 2 can be made responsive to average rather than peak output voltage by modifying the reference voltage V ref , Fig. 4 (not shown).
Patent GB-120464-A (GB)
Title: Range Finder for use from Aircraft.
Inventor: SCOBLE WALTER ALFRED
IPC: G01C3/02
Filed: 1917-11-26
Abstract: 120,464. Scoble, W. A., and Rogers, F. E. Nov. 26, 1917. Sighting levels and clinometers.-Relates to hand instruments of the general type of depression range-finder, and comprises a sighting-instrument with attached spirit-level, so arranged that the cotangent of the angle of depression from the object is read directly, through the agency of a mirror mounted on the frame of the instrument, according to the position of the bubble with reference to a graduated scale upon or adjacent to the bubble tube, whilst the observer sights the object, the observation and reading being independent of the manual adjustment of any moving parts. Folding handles H are secured to the main tube carrying the backsight S<1>, foresight S<2>, mirror M, and curved graduated liquid level B. The scale figures are preferably reversed for reading in the mirror, which, in common with the sights, may be folded upon the tube. The product of the altitude of the observer, measured, e.g., by an altimeter, and the reading by the instrument is the horizontal range.
Patent GB-403893-A (GB)
Title: Improvements in fountain pens
IPC: B43K5/06
Filed: 1933-06-19
Abstract: 403,893. Retaining pens in pockets. DEUTSCH-AMERIKANISCHE FUELLFEDER-GES., 43, Hofmannstrasse, Munich, Germany. June 19, 1933, No. 17478. Convention date, Nov. 7, 1932. [Class 43.] The arm d of a pocketclip is adapted to be used for reciprocating the piston b of a self-filling fountain pen by pivoting it to the cap e of the pen so that it can be turned through 180‹ to serve as a clip or to project beyond the end of the cap for detachable connection to the piston. The arm is adapted to be held in its extreme positions by a spring. The arm is provided with a ball g at its free end adapted to be received in a correspondingly-shaped slotted cavity h in the piston.
Patent GB-1032681-A (GB)
Title: Ice protection systems for aerofoil surfaces
Inventor: PEDERSEN JOHN RENDALL CONRAD
IPC: B64D15/02
Filed: 1961-05-12
Abstract: 1,032,681. De-icing equipment for aerofoils. D. NAPIER & SON Ltd. May 10, 1962 [May 12, 1961], No. 17495/61. Heading B7W. In an aerofoil hot gases flow from a spanwise manifold 11 through a slot 12 into a passage 13 where it heats outer skin 14, the gas escaping the rough spanwise jets 18, 19 placed near the limit of catch, i.e. the rearmost point along a chord of an aerofoil at which water is collected, and is aft of the leading edge by about 15% of the chord. The jets remove water flowing over the aerofoil surface and may be adjustable in width and angle at which the gas is discharged, Fig. 2, not shown.
Patent GB-960840-A (GB)
Title: Improvements in or relating to printed circuits
Inventor: GOSLING HAROLD WILLIAM
IPC: H05K3/00
Filed: 1961-05-13
Abstract: 960,840. Photo-mechanical printing. NATIONAL RESEARCH DEVELOPMENT CORPORATION. May 11, 1962 [May 13, 1961; Oct. 5, 1961], Nos. 17499/61 and 35855/61. Heading G2M. [Also in Division H1] A photographic master for use in the manufacture of printed circuits comprises a sheet of transparent material coated with an adherent layer of an opaque substance in a pattern which leaves uncoated a plurality of small areas, representations of a circuit diagram being formed by removing narrow bands of the layer with a hand tool. As shown, a sheet 2 of transparent material has a number of small annular areas 3 left uncoated and may also have uncoated strips 4 and 6. A hand tool is used to remove the coating to form the pattern of a printed circuit, the central coated dot 9 may or may not be removed. The master may be photographed on to a photosensitive layer on a metal clad surface, the unexposed portions of the layer and the underlying metal being removed.
Patent GB-972239-A (GB)
Title: Detergent tablets
Inventor: SLOB ARIE WILLEM
IPC: C11D17/00
Filed: 1961-05-15
Abstract: Disintegrable detergent tablets are made from a detergent powder containing a non-detergent substance which is capable of being liquefied by heat without affecting the other ingredients by agglomerating the powder into tablet form, e.g. by means of light pressure in a mould, and then heating the tablet for a time and to an extent sufficient to liquefy at least part of said substance, after which the tablet is cooled to solidify the melt and bind the tablet. The liquefiable substance may be sugar or gelatin, an anhydrous salt such as sodium carbonate or hexametaphosphate, or sodium perborate, borate, sulphate or carbonate, aluminium sulphate or potassium aluminium sulphate in their partly or fully hydrated forms; sodium perborate tetrahydrate is favoured and the liquefiable substance is usually present in excess of 2% by weight.  The heating is generally to 40-300 DEG  C. and may be carried out so as to heat the entire mass of the tablet, e.g. in a microwave furnace or by capacitative heating, or merely so as to heat the tablet surfaces, e.g. by contact heating with hot air or plates. While cooling, the tablet may be irradiated, placed in an air stream, or kept under a vacuum. After cooling, the tablets may be coated, e.g. with polyvinyl alcohol, paraffin wax or water-glass. Surface irregularities may be removed by treatment with steam, or by sprinkling with water.  The detergent powder base may contain sodium alkylbenzene sulphonate, soap, fatty acid monoethanol-amide, a condensate of ethylene oxide with nonylphenol, sodium pyro- and tripoly-phosphate, silicate, sulphate and carboxymethylcellulose, fluorescent brightener, perfume and preservative.  According to the Provisional Specification, sodium aluminium sulphate 24-hydrate and paraffin wax may be used as the liquefiable substance.
Patent GB-211066-A (GB)
Title: Apparatus for the continuous saturation of beer and other liquids with carbonic acid or other gas
IPC: B67D1/04
Filed: 1923-07-06
Abstract: 211,066. Coward, G. M., and Watkins, J. E. July 6,1923. Forcing gas into liquid.-In apparatus of the type in which gas is supplied under pressure to porous tubes enclosed in a conduit through which the liquid passes, several of such tubes B are arranged in a mixing-chamber A forming part of the conduit. The tubes B are secured to branches B<1> on a gas inlet pipe B<2>. The aerated liquid. passes through a sight-glass E.
Patent GB-379433-A (GB)
Title: Improved manufacture of ammonium magnesium phosphatic fertilizers
IPC: C05B7/00
Filed: 1931-06-17
Abstract: Ammonium magnesium phosphate is prepared by adding the theoretical quantity of finely ground calcined magnesia to a solution of monoammonium phosphate containing exactly six molecules of water per molecule of phosphoric acid, the mixture heating up to about 80 DEG C. and rapidly crystallizing. Alternatively dry monoammonium phosphate may be mixed with the theoretical quantity of calcined magnesia and the quantity of water just necessary for obtaining an ammonium magnesium phosphate containing six molecules of water for one molecule of phosphoric acid then added to the mixture. Specification 368,559 is referred to.ALSO:Ammonium magnesium phosphate fertilizers are prepared by adding the theoretical quantity of finely ground calcined magnesia to a solution of mono-ammonium phosphate containing exactly six molecules of water per molecule of phosphoric acid, the mixture heating up to about 80 DEG  C. and being rapidly converted into crystallized ammonium magnesium phosphate. Alternatively dry mono-ammonium phosphate may be mixed with the theoretical quantity of calcined magnesia and the quantity of water just necessary for obtaining an ammonium magnesium phosphate containing six molecules p  of water for one molecule of phosphoric acid then added to the mixture.  Specification 368,559 is referred to.
Patent GB-1298363-A (GB)
Title: Improvements relating to speed control arrangements for electric motors
Inventor: PLETTS THOMAS MICHAEL
IPC: H02P25/14
Filed: 1969-04-03
Abstract: 1298363 Automatic speed control PLESSEY Co Ltd 3 April 1970 [3 April 1969] 17611/69 Heading G3R The speed of an electric motor is controlled by an impedance network which supplies gating signals to a full-wave switching device in the armature circuit. The network includes a device responsive to radiation which is generated in accordance with the motor speed. In the embodiment shown, a series motor M drives a tachogenerator TG which supplies a lamp LP through an adjustable resistor VR. The lamp illuminates a photo-cell P in a bridge circuit L, C1, C2, and changes in the photo-cell resistance adjust the phase of the bridge output signal which is taken from the junction of a resistor R2 and a neon lamp N. This signal is fed to the primary of a pulse transformer PT whose output is connected to the gate electrode of a bidirectional thyristor T in series with the motor 17. In operation, a change in the motor speed varies the output of the lamp LP, and the bridge network controls the firing angle of the thyristor T to tend to maintain the motor speed at its original setting. In an alternative system a voltage dependent on the motor speed may be obtained by detecting its back E. M. F. instead of by using a tachogenerator.