baber/WOPTO huggingface dataset:
Patent GB-159552-A (GB)
Title: Improvements in printing textile fabrics
IPC: D06P5/12
Filed: 1919-11-28
Abstract: A process for printing textile fabrics comprises the following steps in the order specified:-(1) printing with a wax, resin or the like resist, (2) immersion in a mordant solution containing a chromium, aluminium, iron or copper mordant or mixtures of these, (3) drying and stripping the resist in any suitable way, and (4) dyeing with a colour appropriate to the mordant.  The effect of mordanting the mechanically-resisted fabric with the mordants specified is to fix a larger proportion of the mordant on the resist-printed fabric than on the unprinted part, with the result that when the resist is removed and the fabric subsequently dyed the resist pattern is outlined in darker shades upon the coloured background.  Other operations may be superimposed upon the process.  Thus, the fabric may be dyed with indigo or other suitable colouring matter between the first and second steps or between the second and third steps; or white cloth may be treated with a b -naphthol prepare prior to the first step and subsequently developed with a diazo solution between the first and second steps; or the fabric may be printed with a discharge colour, aged and washed between the third and fourth steps; or the wax resist may be cracked for veined and marbled effects. Specification 23324/11 is referred to.
Patent GB-405225-A (GB)
Title: Improvements in beadings, edgings, mouldings and the like finishings
IPC: B60R13/04
Filed: 1933-09-30
Abstract: 405,225. Trimmings. BROOKE, A., 37, Ford Street, Coventry. Sept. 30, 1933, No. 26934. [Class 141.] A moulding or the like for use on upholstery or motor vehicles comprises a fabric-covered rubber core a which encloses a flexible metal strip b carrying or adapted to carry a plurality of nails b<1>. The rubber core has a longitudinal slit a2 opening to an inner channel a<1> for the reception of the metal strip b. The strip may be inserted laterally into the core by separating the lips of the slit, when the nails are driven through the base of the core, as in Fig. 1 ; or the strip may be introduced endwise, in which case the slit is formed in the base of the core to accommodate the nails, as in Fig. 4.
Patent GB-1016091-A (GB)
Title: Process for producing a highly shrinkable polyester filament
IPC: C08G63/181
Filed: 1963-07-08
Abstract: 1,016,091. Making polyester filaments. TOGO RAYON KABUSHIKI KAISHA. July 8, 1963 [July 10, 1962], No. 26998/63. Heading B5B. A highly shrinkable polyester filament is produced by copolymerizing a mixture of (a) a reaction product of ethylene glycol with terephthalic acid or a lower alkyl ester thereof; and (b) a reaction product of ethylene glycol with a dicarboxylic acid other than terephthalic having the general formula where X is a hydrocarbon radical having at least one aromatic ring, Y is a hydrogen or halogen atom or a lower alkyl radical, and n is zero or an integer, or a lower alkyl ester thereof, (a) and (b) being in the proportion of at least 95 mol. per cent of (a) and not more than 5 mol. per cent of (b), melt-spinning the resulting linear co-polyester and thereafter stretching the resulting filament at a stretch ratio of 2À5 to 5À5 at 60‹ to 100‹ C. The said dicarboxylic acid may be isophthalic acid, naphthalene-2,6-dicarboxylic acid phthalic acid, 5-methyl isophthalic acid, diphenic acid, or a substituted isomer of any of them.
Patent GB-775831-A (GB)
Title: An improved process for the manufacture of pyridyl-(3)-methyl methyl amine
IPC: C07D213/38
Filed: 1955-09-22
Abstract: Pyridyl-(3)-methyl methyl amine is prepared by catalytically hydrogenating 3-cyanopyridine in the presence of methylamine until 1 mol. of hydrogen is absorbed, and further hydrogenating the product above 50 DEG C. at a pressure above 30 atmospheres until a second mol. of hydrogen is absorbed.  The initial hydrogenation is preferably carried out around 20 DEG C. and the product heated above 50 DEG C. for some time before hydrogenation is resumed. Alternatively the whole process can be carried out above 50 DEG C. The methylamine is used in excess of the theoretical, e.g. 7 mols. per mol. of cyanopyridine.  Raney nickel is a suitable catalyst. The product comprises a mixture of pyridyl-(3)-methyl methyl amine and pyridyl-3)-methyl amine; this is heated below 100 DEG C. with 1 mol. of phthalic anhydride per mol. of the former amine, whereby the latter amine is preferentially converted into the phthalamic acid. On further heating to 130 DEG C. the small quantities of the pyridyl-(3)-methyl methylphthalamic acid react with free pyridyl-(3)-methyl amine to exchange the phthalyl group, the product splitting off water to give pyridyl-(3)-methyl phthalimide.  The desired product is then separated from this by distilling or washing with methanol.  An example is given of the process.  Specification 439,274, [Group IV], is referred to.
Patent GB-236800-A (GB)
Title: Improved inductance coil plug
IPC: H01F27/00
Filed: 1924-11-14
Abstract: 236,800. Ross, B. Nov. 14, 1924. Inductances. - A plug- and-socket coil-holder comprises an insulating body a on the outside of which is secured a springy conducting arm b having a projection b<1> which extends through a hole into the socket c to make contact with the coil pin f<1>. On withdrawing the coil, the arm b engages a conducting strip d secured to the body a by a screw which also engages the pin terminal of the holder, thus short-circuiting the connections. The socket c is large enough to receive the pin f<1> without wedging; it may have a conducting lining.
Patent GB-802271-A (GB)
Title: Improvements in or relating to heat exchangers
Inventor: COMBEN WALTER FREDERICK
IPC: F28D1/03
Filed: 1955-09-23
Abstract: 802,271. Making heat exchangers. GENERAL ELECTRIC CO., Ltd. Sept. 24, 1956 [Sept. 23, 1955], No. 27252/55. Class 83 (2). [Also in Group XIII] In a method of making a heat exchanger such as a condenser for a domestic refrigerator, a strip of metal is brazed to a metal plate 1 so as to close the open side of a groove formed, e.g. by pressing, either in the strip (as shown) or in the plate, the plate and the strip together defining a fluid passage 2 and the strip being fastened to the plate prior to brazing by means of lugs 4 bent out of the plate. In the form shown the strips are provided with flanges 5 which are engaged by the bent-over lugs 4. Copper wires are placed in the groove before the parts are brazed in a furnace.
Patent GB-950660-A (GB)
Title: A new or improved speed-dependent hydraulic control
IPC: F16H61/02
Filed: 1961-07-27
Abstract: 950,660. Electric correspondence control systems. E.UHER. July 27,1961 [July 28, 1960], No. 27333/61. Heading G1N. [Also in Division G3] A hydraulic control dependent on the speed of a member, e.g. a prime mover or a driven engine, comprises a delivery pump 1, a by-pass valve 7 having a valve head carried by a stopped piston and a loading dependent on the speed of the member so that the pump produces in its delivery duct 3 a speed-dependent hydraulic pressure, and a servomotor 18 subjected to the speed-dependent pressure. In one embodiment, the valve 7 has a spring load 10 adjusted by a centrifugal governor 12 and a lever 15 with a manually adjustable fulcrum 14. In a further embodiment, the valve 7, Fig. 4, is loaded by a solenoid 23 having its energizing current varied by a helical resistor 38 in a glass drum 33 containing mercury 44. The drum is rotated from the member to be controlled so that the mercury progressively short-circuits the coils of the resistor with increasing speed. The energization may also be controlled by a potentiometer connected to a centrifugal governor or by a dynamo connected to the winding of the solenoid through a manually-adjustable potentiometer in parallel with a switch.
Patent GB-1165891-A (GB)
Title: Improvements in Static Switching Controllers for Effecting Connection to a D.C. Electric Motor and Disconnection from the Motor of a Battery
Inventor: BROWN CHRISTOPHER ROBIN
IPC: H02P7/29
Filed: 1965-06-28
Abstract: 1,165,891. Control of D.C. motors. RANSOMES SIMS & JEFFERIES Ltd. 28 Sept., 1966 [28 June, 1965], No. 27353/65. Heading H2J. In a system in which a series motor 11, 13, e.g. in an industrial truck, is energized from a battery via a thyristor 19 commutated by a capacitor 22 and second thyristor 23, armature current through a diode 28 when the field is reversed (and becomes self-exciting) for dynamic braking closes a relay 29 which causes a pulse generator triggering the thyristors to operate in a " minimum motor current " condition, thus applying minimum reverse torque. The pulse generator comprises a free-running multivibrator 61, 62, each half being connected to respective trigger electrodes via pulse shaping amplifiers 71, 72, and the time constant of each half is determined by resistors and capacitors 67, 68 and 65, 66. Control is effected by a voltage from a foot-operated potentiometer 40 applied through a diode 50 to vary the conduction of transistors 76, 73 through which the capacitors 68, 66 can discharge; the rate of acceleration is limited by the time constant of an R-C circuit 49, 44. A resistor 75 ensures a minimum " off " time sufficient for capacitor 22 to charge to a value above battery voltage, which is effected by a choke and diode circuit 25, 26, 17. The arrangement is such that for the first 25% of acceleration the " on " pulse frequency is increased and thereafter its width is increased. The mean value of the current is limited by applying the volt drop across a resistor 30 to a transistor 85 which, via a circuit including a transistor 91 and Zener diode 92 affects the conduction of transistor 76 when a threshold is reached. A diode 86 provides temperature compensation for 85. When the control voltage reaches maximum transistor circuit 124, 130 closes relay 121 to operate a contactor 120 which short-circuits thyristor 19; the same circuit opens the contactor if the control voltage decreases and a biasing circuit through contactor auxiliary contacts 141 ensures that the multivibrator restarts from the " off " condition so that the commutating capacitor 22 is ready charged. An interlock circuit including a relay 46, delayed by res./cap. 159, 160, ensures that direction contactors cannot be closed (and hence the motor started) if thyristor 19 is " on " or short-circuited; the delay provides time for capacitor 22 to charge. The direction contactor relays 150, 151 are held on during conduction of 19 by a capacitor 210; thus, if commutation fails 210 does not become charged and the relays drop out to stop the motor. A foot brake switch 250 puts the control signal to minimum when operated.
Patent GB-463954-A (GB)
Title: Automatic electric welding
IPC: B23K9/073
Filed: 1935-10-04
Abstract: 463,954. Automatic control systems. UNION CARBIDE & CARBON RESEARCH LABORATORIES, Inc. Oct. 4, 1935, No. 27405. Convention date, Nov. 9, 1934. [Class 38 (iv)] Electromotive force.-In an A.C. arc welding system, the speed of operation of the electric motor which feeds the electrode towards the work is controlled by a space discharge device responsive to variations in resistance between the electrode and the work. The electrode 10 is supplied with A.C. from mains 12, 13 and is fed forward by the motor M having shunt and series fields 21, 18, the motor being supplied with D.C. through leads 49, 51 from an independent A.C. source 30 and grid-controlled valves 24, 25. The primary 29 of the source 30 is associated with secondaries 34, 35, 36, the secondary 34 being connected to the anodes 41, 42 of the valves 24, 25 for full wave rectification. Flow of current through the valves to the motor is controlled by the grids 53, 54. The voltage difference between the lead 61 connected to the grids and the negative lead 49 depends upon two full wave rectifying valves 68, 69 acting in opposition. The cathodes 83, 84 are both associated with the secondary 36, the mid-point of which is connected to the lead 61 between the resistances 62, 63. The voltage derived at point 95<1> from the anodes of valve 69 through secondary 35 is constant and depends upon the independent source 30. The opposed voltage derived at the adjustable contact 64 from the anodes of valve 68 depends upon the voltage across the welding mains 12, 13, the mains being connected to the primary 72 of a transformer and the valve to the secondary 74. The voltage thus rises or falls in the lead 61 in dependence upon variations of the voltage and resistance across the electrode and the work. A transformer 48 prevents overrunning of the motor M when the flow of current ceases. In a modification, the valve 68 is dispensed with and in a further modification, the primary 29 supplies only the secondary 34, a separate primary connected to the same independent source being associated with the remaining secondaries. An additional rectifier supplies current to the field of the motor M. A resistance is inserted in parallel with the motor armature when the current is cut off to prevent overrunning.
Patent GB-1082265-A (GB)
Title: Therapeutic shoe
Inventor: CAMPBELL GEOFFREY DUNCAN LETHE
IPC: A43B7/00
Filed: 1965-06-29
Abstract: 1,082,265. Boots &c. EXER-SHOE CORPORATION. June 29, 1965, No. 27425/65. Heading A3B. A therapeutic shoe has a sole 2 consisting of a continuous marginal edge 3 and longitudinal and transverse ribs 5 which define cells in which may be placed weights 10. The sole is made by die-stamping sheet material to form the cellular structure leaving the cells filled by the material of the sole and after assembly in the shoe the plugs are removed and replaced by weights in the desired configuration. Where no weights are added the plugs of sole material are left in the cells. The upper surface of the sole is covered by a removable lining 15 and the lower surface is covered by a removable lining 15 and the lower surface is covered by a tread sole 9 and a heel 12, 14 which may also contain weights.
Patent GB-1312225-A (GB)
Title: Selective gearing arrangement suitable for use in a flexible  pricing arrangement for liquid dispensing apparatus
IPC: F16L21/00
Filed: 1971-06-11
Abstract: 1312225 Variators SUN OIL CO 11 June 1971 [26 June 1970 24 Sept 1970] 27426/71 Heading G4D In a petrol pump in which high and low grade fuels are blended and priced according to which of a number of bell-cranks 54 is rocked to provide an appropriate price-increment gear-ratio between shafts 48 and 49, provision is made for charging extra for the low-grade fuel. Normally, selection of the low grade fuel by manual operation of shaft 68 leaves all bell-cranks 54 in counter-clockwise position (because all cams 62 are turned to ineffective position), but the invention provides a bracket 76 with an adjustable slide 78 and a flange 79 which rocks a selected higher-price bell-crank 54 into operative position.
Patent GB-1038795-A (GB)
Title: Improvements in or relating to a fluid operated hand grinder or cutting tool
IPC: A61C1/08
Filed: 1964-07-02
Abstract: 1,038,795. Grinding. DENTISTS SUPPLY CO. OF NEW YORK. July 2, 1964 [July 5, 1963], No. 27444/64. Heading B3D. [Also in Division A5] A hand grinding tool 10 comprises a housing 18 for a turbine shaft 30 and turbine rotor 32, to which housing is connected an elongated tubular member for housing rotary drive shaft 38 having grinding tool 42 attached thereto, and speed governor or brake means comprising brake member 44 responsive to centrifugal force and brake member 24. Brake member 44 comprising flexible legs interconnected to turbine shaft 30 is such that when a predetermined speed of rotation of shaft 30 is achieved the legs of member 44 are moved under centrifugal force against the friction faces 50 of thimble-like brake member 24 surrounding brake member 44 to restrict the speed of rotation of the shaft 30. When tool 42 is placed under load, the rotational speed of shaft 30 drops and the frictional surfaces of the members 44 and 24 move apart to allow the extra power of the shaft 30 to be applied to the tool 42. The members 44 and 24 are adjustable such that the centrifugal force required to bring them into engagement may be varied. The pressure fluid which may be air entraining oil mist, operating the turbine may be exhausted such that it cools and lubricates the braking mechanism and the bearings for the turbine and drive shafts. Cooling water may be applied to tool 42 by conduit 78.
Patent GB-297743-A (GB)
Title: Improvements relating to steam boiler installations
IPC: F22B1/14
Filed: 1928-09-25
Abstract: 297,743. Loffler, S. Sept. 26, 1927, [Convention date]. Arrangements of superheating tubes in boiler furnaces.-In a high - pressure boiler, U - shaped steam superheating tubes 2 form the side walls of a powdered fuel furnace 1, the lower parts of the tubes being spaced apart to form openings for the passage of the heating gases from the furnace to adjacent heating flues. Steam is taken from the boiler 8 and forced into the superheater by a pump 9. Steam passes from the U-tube superheater through a coiled-tube superheater 6 in the first flue to a header 11, which opens into the drum 8, and from which steam is taken off to an engine &c. through a pipe D.
Patent GB-455880-A (GB)
Title: Improvements in or relating to optical sound recording apparatus
IPC: G11B7/00
Filed: 1935-10-07
Abstract: 455,880. Optical sound - recording apparatus. DIXON, M. G., 70, Chancery Lane, London.-(Klangfilm Ges.; 19, Saarlandstrasse, Berlin) Oct. 7, 1935, No. 27648. [A Specification was laid open to inspection under Sect. 91 of the Acts, April 6, 1936.] [Class 40 (ii)] Relates to electrodynamic apparatus for the production of optical sound records in which the zero line of the track is displaced in accordance with the sound volumes. According to the invention, the mean position of oscillation of the electrodynamic system excited in accordance with the sound oscillations to be recorded is controlled according to the desired displacement of the zero line by an independently oscillating member which is mechanically connected with the electrodynamic system. Fig. 1 shows a construction in which a mirror 11 is carried by a wire 10 fed with alternating currents corresponding to the sound oscillations to be recorded. The wire 10 is fixed at one end at 12 whilst its other end is engaged by a hook 15 on a wire 16 which carries an armature 18 which projects into a coil (not shown) fed with direct current obtained by rectification of the speech alternating currents. The wire 16 is rigidly tensioned at 17 and is adapted to roll on the edge of a bar 19. According *to a modification, Fig. 2, the member 16 is in the form of a strip of sheet metal which carries a coil 20 fed with the direct current, the end 26 of the strip being connected by a spring 21 to a member 17 adapted to oscillate about an axis 23.
Patent GB-995937-A (GB)
Title: Improvements relating to separation processes using molecular sieves
IPC: C10G53/08
Filed: 1963-07-12
Abstract: A process for the separation of straight-chain hydrocarbons from petroleum fractions containing discrete iron-containing particles comprises contacting the feedstock in a pre-treatment zone with a filter, preferably a cellulose filter having a pore diameter not greater than 0.45 m , to remove the discrete particles, prior to separating the straight chain hydrocarbons by means of a 5 <\>rA molecular sieve, for example as set forth in Specification 944,441.ALSO:A process for the separation of straight-chain hydrocarbons from petroleum fractions containing discrete iron-containing particles comprises contacting the feedstock in a pretreatment zone with a filter, preferably a cellulose filter having a pore diameter not greater than 0,45m , to remove the discrete particles, prior to separating the straight-chain hydrocarbons by means of a 5  molecular sieve, for example as set forth in Specification 944,441.
Patent GB-392424-A (GB)
Title: Improvements in or relating to photographic printing by ultraviolet light
IPC: G03C1/795
Filed: 1932-10-05
Abstract: 392,424. Photographic processes. NAAMLOOZE VENNOOTSCHAP PHILIPS' GLOEILAMPENFABRIEKEN, 13D, Emmasingel, Eindhoven, Holland. Oct. 5, 1932, No. 27701. Convention date, Oct. 9, 1931. [Class 98 (ii).] A method of making photographic prints with ultra-violet light having a wavelength less than 2,900Š consists in printing from a negative whose carrier is transparent to more than 20 per cent of rays having a wavelength of 2894A on to printing material substantially insensitive to visible rays but sensitive to ultra-violet rays of short wavelength. Materials for the negative carrier are (1) " Cellophane," (2) triacetylcellulose cast from a solution thereof in chloroform or tetrachlorethane, (3) borosilicate glass consisting of 80 per cent silica, 10 per cent boronoxide, 5 per cent calcium oxide, and 5 per cent alumina, (4) an urea formaldehyde condensation product, and (5) " Sanalux " glass. " Vaseline " may be used as a filler for the triacetylcellulose or the urea formaldehyde condensation product. The light or sensitive material may be sodium xanthogenate or lead acetate as described in Specification 361,388.
Patent GB-603509-A (GB)
Title: Improvements relating to trailer vehicles
IPC: B60D1/50
Filed: 1945-10-22
Abstract: 603,509. Trailer vehicles couplings. MOTT, S. F. Oct. 22, 1945, No. 27776. [Classes 103 (v) and 108 (i)] A trailer vehicle 1 is extended at 3 and provided with castors or rollers 4 resting on a track 5 which extends across the top of a motor vehicle over or in front of the back axle, so that the weight of the forward part of the trailer is supported independently of the coupling. The trailer pivots about a ball joint 6 carried by a triangular frame 7 pivoted at an axis 8. The coupling comprises two parallel telescopic rods 11, 12 sliding in a frame 17, with springs 13, 14 resisting movement in extension or compression. A ball joint is provided at each end connection to the vehicle.
Patent GB-999674-A (GB)
Title: Improvements in or relating to parametric amplifiers
IPC: H03F7/04
Filed: 1961-08-01
Abstract: 999,674. Parametric amplifiers. TELEFUNKEN PATENTVEWERTUNGS G.m.b.H. Aug. 1, 1961 [Aug. 5, 1960], No. 27845/61. Heading H3B. In a parametric amplifier, a number of circuits HK1, HK2, HK3, HK4 Fig. 3 tuned to an idling frequency are connected in parallel branches to a signal source SQ1 and to a circuit SKI tuned to the signal frequency. Each circuit tuned to the idling frequency includes a non-linear reactance D1, D2, D3, or D4 such as a semi-conductor diode or a ferrite device. Circuits PK1, PK2, and PK3, PK4 (not shown) are tuned to the pumping frequency and are connected in the parallel branches which include the idling circuits. The circuits PK1 &c. are driven by a common pump source PQ1 in series with matching resistors Rl, R2 &c. In Fig. 4, non-linear reactors D5 to D9 and idling circuits HK5 to HK9 are connected in parallel branches across a series arrangement of a signal circuit SK2 and a pumping circuit PK2, SQ2, PK2 are the the signal and pumping sources. Frequency selective networks may be used instead of the simple tuned circuits shown. The idling circuits may be detuned to widen the passband curve. A wide pass-band curve is obtained if the idling circuits are all timed to the same frequency and different pump frequencies are used.