baber/WOPTO huggingface dataset:
Patent GB-1030969-A (GB)
Title: Improvements in or relating to the preparation of weak acids from their salts by electrodialysis
Inventor: PERRYER DAVID LIONEL
IPC: C25B1/22
Filed: 1964-04-29
Abstract: In the preparation of a weak acid from a salt of the acid which is initially free of salts of stronger acids, an aqueous solution of the salt of the weak acid and a salt of a stronger acid is used as anolyte in a cell separated from the catholyte by a cationic perselective membrane.  The process may be applied to producing acids from solutions of a borate, e.g. borax, tartrate or maleate and the stronger acid salt is preferably sodium sulphate which is present in sufficient concentration to provide at the end of the process a conductivity equal to that of a solution of the weak acid salt alone. The catholyte is preferably an aqueous solution of an alkali metal carbonate or bicarbonate. Both anolyte and catholyte may be removed batchwise or, if desired, continuously.
Patent GB-1031650-A (GB)
Title: Macpherson strut-type independent wheel suspension
Inventor: TURNBULL JOHN BARTHOLOMEW
IPC: B60G13/00
Filed: 1965-04-29
Abstract: 1,031,650. Strut type independent suspensions. FORD MOTOR CO. Ltd. April 29, 1965, No. 18003/65. Heading B7D. A polytetrafluoroethylene bearing sleeve 24 is provided between the relatively movable parts 7 and 13 of a suspension strut 3 which is secured to a vehicle body at the top by a resiliently mounted ball-bearing 9 and at the bottom by a transverse track control arm 15 pivoted to the wheel spindle and an anti roll bar to absorb fore- and-aft forces connected at 21 to the track control arm. Preferably the axis of coil spring 5 is arranged at an angle to the strut axis.
Patent GB-186582-A (GB)
Title: An improved electrically insulating pipe section for highvacuum pipe lines
IPC: H01J13/28
Filed: 1922-06-30
Abstract: 186,582. Akt.-Ges. Brown, Boveri, et Cie. Sept. 20, 1921, [Convention date]. Low-pressure metallic-vapour apparatus.-The interior of an insulating pipe-section c for high vacuum pipe-lines, is provided with thin screens d<1> - - d<9> having staggered apertures o<1> - - o<9> to lengthen the path traversed by, and reduce the kinetic energy of, the electrons, thus reducing the impact-ionization of the electrons striking the electrode.
Patent GB-297524-A (GB)
Title: Improvements relating to the steering of bicycles and the like
IPC: B62K21/12
Filed: 1927-07-08
Abstract: 297,524. Ravn, O. F. C. July 8, 1927. Preventing unauthorized use of cycles. - A lug 3 loosely mounted on the stem 7 is secured to thehandle - bar 1. Another lug 8 is fast on the stem. Normally, therefore, the handle-bar may be swung idly on the stem and the cycle cannot be steered. The lug 3 and handle-bar are apertured as shown at 13, 14a, while the lug 8 has a socket 14. The handle-bar is made fast to the stem by the insertion of a suitably-shaped key in the apertures and socket.
Patent GB-842404-A (GB)
Title: Skin treatment composition
Inventor: BRAUN ERNEST
IPC: A61Q19/10
Filed: 1958-06-06
Abstract: A skin treatment composition which may be in the form of a cream, salve, soap or shampoo contains an aqueous garlic extract and castor oil.  Salicylic acid is preferably present, as is an agent, e.g. celery oil, to mask the garlic odour.
Patent GB-740138-A (GB)
Title: Rotary pump
IPC: F01C21/08
Filed: 1954-06-22
Abstract: 740,138. Rotary pumps. HOJBERG, L. B. June 22, 1954, No. 18253/54. Class 110(2) A rotary pump of the radially sliding vane type for use with milk, beer, wine oil, &c. has a rotor 18 having two similar coaxial halves and having a diametral slot 19 to house a pair of vanes 26, 26<SP>1</SP> pressed apart by a spring 27, the length of each vane 19 being just less than the radius of the cylindrical bore of the pump.housing 1. The end faces of the rotor 18 have cylindrical shoulders 20, 20<SP>1</SP> which engage cylindrical recesses 11 in the pump housing for partial support of the rotor. A stub shaft 15 is secured to one end of the rotor and a drive shaft 14 is detachably secured to the other end so that when a detachable end plate 4 is removed the rotor 18 may be withdrawn from the pump housing. The inlet and outlet ports 6, 7 are tangential to the pump housing.
Patent GB-130975-A (GB)
Title: Improvements in Hydraulic Transformers.
Inventor: JOHANSON REIERT
IPC: F01L25/06
Filed: 1919-07-23
Abstract: 130,975. Johanson, R. Aug. 3, 1918, [Convention date]. Actuating by hydraulic motors. -In a pump for increasing the pressure of a part of a supply of low-pressure liquid, the low-pressure liquid admitted through a port 1 passes to one or other end of a cylinder 4 under the control of a piston slide-valve 3 and operates a piston 5 having extensions forming pistons working in highpressure cylinders 12. Each cylinder 12 is connected through valved inlet openings 10 with the opposite end of the cylinder 4, so that part of the exhaust from the cylinder 4 passes to one of the cylinders 12 while the remainder leaves the, apparatus through the port 6. The piston 5 at the end of each stroke operates mechanism 9 controlling the valve 3 directly or through a servo-motor 7.
Patent GB-1416376-A (GB)
Title: Arrangement for the controllable supply of at least two groups of electric lamps
IPC: H02M1/092
Filed: 1973-04-17
Abstract: 1416376 Transistor logic circuits PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 17 April 1973 [20 April 1972] 18435/73 Heading H3T [Also in Divisions H2] A transistor logic circuit comprises a first NAND gate having inputs G1, G2 and a second NAND gate having inputs G3, G4. A D.C. source is connected across terminals P, Q and when the potential at the positive terminal of the source is applied to the input G1, a transistor 109 is switched off whilst a transistor 111 is switched on. The output terminal Q1 is  therefore at the negative potential of the source and is applied to the input G3 of the second gate. Similarly when the negative potential of the source is applied to the input terminal G1 the states of the transistors 109, 111 are reversed and the potential at the terminal Q1 equals the positive potential of the source.
Patent GB-950281-A (GB)
Title: Benzamide derivatives
IPC: C07C237/00
Filed: 1960-05-25
Abstract: A process of preparing a benzamide derivative of the general formula: <FORM:0950281/C2/1> where R1 is an alkoxy or a monoalkylamino or dialkylamino radical and R2 is an alkyl radical comprises treating a compound of the general formula: <FORM:0950281/C2/2> with a base to open up the nitrogen-containing ring structure whilst at the same time substituting the >C = O grouping attached to the nitrogen and oxygen atoms in the ring structure by hydrogen and then alkylating the resultant compound to replace the hydrogen in the hydroxyl group by the alkyl radical R2.  Bases specified include alkali hydroxides and carbonates and alkylamines. When alkylamines are employed the terminal radical is converted into an alkyl substituted amine radical.  The alkylamines may be used in the forms of aqueous or alcoholic solutions. In examples N-2-methoxybenzoyl-N1, N1-dimethyl glycineamide is obtained by reacting 2, 4-dioxo-dihydro -1, 3-benzoxazinyl -(3)- acetate with aqueous dimethylamine to obtain N-2-hydroxy-benzoyl -N1 N1-dimethyl glycineamide which is treated with sodium and methyl sulphate (1); similar processes are carried using ethyl 2, 4-dioxodihydro-1, 3-benzoxazinyl -(3)- acetate and 2, 4-dioxodihydro-1, 3-benzoxazinyl -(3)-acetodimethylamide as starting materials (2, 3) whilst similar processes to (3) are carried out using aqueous sodium hydroxide and potassium carbonate instead of aqueous dimethylamine (4, 5).  The starting materials for use in the process may be prepared by reacting 2, 4-dioxodihydro-1, 3-benzoxazine, preferably in the form of its alkali metal salt with a compound of the formula Z(CH2)nCOR where Z denotes halogen. Specification 858,426 is referred to.
Patent GB-586595-A (GB)
Title: Improvements in or relating to reflex reflectors suitable for road or advertising signs or markers
IPC: G09F13/16
Filed: 1943-11-08
Abstract: 586,595. Coated fabrics. MINNESOTA MINING & MANUFACTURING CO. Nov. 8, 1943, No. 18529. Convention date, Jan. 23. [Class 140] [Also in Groups XVIII, XX and XL] In a reflex reflector of the kind comprising a layer of small transparent spheres 13, Fig. 1, adhesively secured to a reflecting backing 10, 11, the surface exposed between the spheres is opaque and contrasts with the colour of the reflecting backing to give a different appearance by day and by night. The exposed surface (a) may be that of the sphere-bonding adhesive 12 which may be opaque, or, as shown in Fig. 4, may be a coating 28 applied over a transparent or opaque sphere-bonding adhesive 26 and removed, e.g., by buffing or brushing, from the exposed surfaces of the spheres 27, or a layer produced by modifying the surface of the spherebonding adhesive by applying dyes which penetrate to a' certain depth, or by applying pigment to the temporarily-softened surface. The applied pigment may be a fluorescent or phosphorescent powder. The sphere-bonding adhesive may be in several differently-coloured superimposed layers to give zones of different reflex reflection when seen from different angles. A transparent spacing layer 25, Fig. 4, may be applied and cured upon the reflecting backing 23, 24 before applying the sphere-bonding adhesive. In certain areas, e.g., lettering, the opaque coating may be left over the surfaces of the spheres so that these areas and letters remain black by night. The backing may be metal sheet, plywood, metal foil, waterproof paper, or a flexible film of synthetic rubbery material, coated if necessary with a metallic. white, or light-coloured reflecting coating, e.g., a solution of nitrocellulose, tricresyl phosphate, and alkyd resin containing titanium dioxide and a trace of ultramarine. The pigmented sphere-bonding layer and/or the opaque surface layer may comprise urea-formaldehyde resin, an alkyd resin, a non-drying fatty oil or fatty acid, a pigment, and an aromatic petroleum solvent. An alternative pigmented sphere-bonding adhesive which, is suitable for surface dyeing includes propyl methacrylate resin and titanium dioxide pigment. Specifications 556,935 and 586,594 are referred to.
Patent GB-1444222-A (GB)
Title: Band brake suitable for road wheel use
IPC: F16D49/12
Filed: 1972-04-21
Abstract: 1444222 Band brakes M V HINDERKS 23 July 1973 [21 April 1972] 18531/72 Heading F2E A band brake comprising a flexible band the end parts of which overlap and are moved away from each other by actuators for brake application, the band having one or more frictional elements on its inner surface, is characterized in that at least the overlapping parts of the band consist of a plurality of intermeshed band elements. As shown, the band consists of a series of spring steel cores 4 whose resilience urges the band assembly 7 away from a drum 8, and transverse load distribution wires 36; a continuous friction element 3 of asbestos-based compound, or a series of disconnected friction elements 35 (see foot of Fig. 1) completes the assembly. The ends of the band intermesh at 5, Fig. 1, and each end is attached to a load distributer plate 6 on which is pivoted at 16 a brake lever 15. The inner end of each brake lever 15 engages the end 17 of one of two arms 34, the other ends of the arms being located in wedge-shaped grooves in an adjustment arm 19 regulated by an eccentric screw 20. The outer ends of levers 15 are engaged by an hydraulic piston and cylinder assembly 14. Slotted guides 9 each accommodating loops 11 protruding from the band assembly 7 and provided with stops 13 regulate lateral movement of the band assembly and its spacing from the drum 8. A road vehicle wheel 31 is secured to the drum 8 which is rotatable on a fixed stub axle 23 integral with a brake back plate 22 to which a steering arm 30 is secured. A ram air scoop 26 and an extract cowling 27 provide cooling for the drum interior. In a modification, Figs. 5 and 7, each end of the brake band is actuated by a cantilever brake arm 37 pivoted at 39 to the back plate and actuated by an individual hydraulic piston-andcylinder 38. Torsion restrainers 40, Fig. 7, may be fixed to the back plate. In Fig. 4 (not shown), each band end is pivoted to a C-shaped cantilever brake arm pivoted at its lower end to the back plate, these brake arms being urged outwards for brake application by a single hydraulic assembly. The brake band of Fig. 8 is a flat tape 41, optionally perforated for keying of the friction element 46; the end is cut into ribbons which are secured at 43 in a double load-distribution plate 44 and folded intermediately at 45 to permit intermeshing with the other end of the band. For cooling, a series of fine copper wires (not shown) may extend inwards from each element portion 46, Fig. 8, and diverge before reaching the innermost surface of the frictional material. Alternatively, the edges of the holes around friction portions 46 may be coned upwards. The drum may have an inner flange providing a second drum on which a second band assembly is located (Fig. 13, not shown), this second band assembly providing extra braking power or serving as a separately-actuated parking brake; the drum is perforated for cooling.
Patent GB-994055-A (GB)
Title: Improvements in and relating to garments
IPC: A41F9/02
Filed: 1961-05-23
Abstract: 994,055. Strap fastenings. I. M. MATHESON. May 23, 1961, No. 18543/61. Heading E25. [Also in Division A3] A garment includes one pair of overlaps 2, 5 of material, one of the pair 2 being an inner overlap and the other 5 an outer overlap, the overlaps being conjoined by a device which permits the adjustment of the overlaps of material one on the other, the device comprising a conjoining slider 6, an inner track 3 secured to the outer face of the inner overlap, a locking slider 7 provided with locking means secured to the edge of the outer overlap and adapted to engage with and be securable to the inner track, and an outer track 8 secured to the inner face of the outer overlap and adapted to be engaged by the conjoining slider secured to the inner overlap, the arrangement being such that when the overlaps of material are in desired juxtaposition and the conjoining slider is engaged and conjoins with the outer track and the locking slider engages with the inner track, the overlapping materials are conjoined with the locking slider having its locking means adapted to hold the overlaps of material together with the desired overlapping thereof and permitting a variation in the degree of overlap. The conjoining slider 6 is either spaced from but aligned with the inner slider track 3 or is made integral with it. The conjoining slider 6 is provided with lugs 13 which are adapted to engage flanges 17 of the outer slider track 8 which is T-shaped in cross section. The locking slider 7 is attached by a loop 15 to the outer overlap 5 and has portions 11 which are turned in towards each other and which are arranged to engage the inner slider track 3 the locking means being a lever which can engage abutments on the track 3. Both of the tracks and the conjoining slider are sewn to the overlaps and are made of a thermoplastic material. The outer track 3 is arranged at an angle to the outer edge of the overlap of material or is curved so that the free edges of the overlaps of material are maintained substantially aligned irrespective of the position of the locking slider on its track.
Patent GB-631107-A (GB)
Title: Improvements in or relating to games
IPC: A63F7/06
Filed: 1946-06-20
Abstract: 631,107. Table games. BULLOCK, V. J. A. June 20, 1946, No. 18618. [Class 132 (ii)] In games of the type  comprising a board marked to represent  football or like field ove which pieces representing players are urged after the manner of tiddley winks by projectors to hi a piece towards goals, the - pieces are in the form of discs L having a cavity P, in the undersurface and having their edges L<SP>1</SP> rounded from the upper to the lower surface and the projector M is shaped as shown in Fig. 6, the operative end Ml being slightly dished. The handle of the projector may be bent or in the form of a disc larger than the part M<SP>1</SP>. The discs L may carry miniatures of footballers or the like bearing identification marks. The whole apparatus may be stowed within the board which is foldable.
Patent GB-347053-A (GB)
Title: Improvements in or relating to variable-speed gear
IPC: B60W30/18
Filed: 1930-06-18
Abstract: 347,053. Controlling variable-speed gearing. FOLLIS, P. R., 315, Jefferson Street, Paducah, Kentucky, U.S.A. June 18, 1930, No. 18650. [Class 80 (ii).] The operating arm 20 of the main clutch of a motor vehicle e carries a cross shaft 32 upon which are pivoted a series of gear control pedals 33, 34, 35. The pedals are connected to shift rods 5, 6, 7 by links 37 and concentric shafts. In operation the driver places his left foot on one of the pedals and presses down the lever 20 to dis - engage the clutch ; the pedal may then be rocked on the shaft 32 to change gear. A rubber block is secured to the floor board to engage the toe of the pedal 33 and restore it to neutral position when the arm 20 reaches its lowest position. Another block is provided to act similarly on the heel of the pedal 34.
Patent GB-582383-A (GB)
Title: Improvements in or relating to glazing bars
IPC: E04D3/08
Filed: 1944-09-29
Abstract: 582,383. Glazing bars. WILLIAMS & WILLIAMS, Ltd., and MADDOX, A. M. Sept. 29, 1944, No. 18662. [Class 20 (iii)] A glazing bar comprising a web having spaced longitudinal integral abutments, one of which supports the glass, and between the upper and lower of which is disposed a retaining channel for receiving the lower end of the vertical limb of a cover strip having a laterally extending glass-retaining portion, is characterized in that, after insertion of the glass, the upper abutment is deformed on to the upper end of the vertical limb of a resilient cover strip to press the latter on to the glass. As shown, the parts are all of extruded aluminium &c. alloy, and are so proportioned that the vertical limbs B of the cover strips do not touch the bottoms of the channels A<4>. The upper abutments A<3> are deformed on to the upper ends B<3> of the vertical limbs at intervals by pliers or by a tool D fulcrumed on the rib B<2> on the cover strip and having a deforming wedge E. The wedge E, or a separate stop, may engage the web A to limit the deformation. The ends of the upper abutments A<3> are stepped to provide an exposed part for engagement by a dismantling tool. The upper end B' of the vertical limbs may be slightly inclined to give a wedging action.
Patent GB-289675-A (GB)
Title: Means for making zigzag stitches on a sewing machine
IPC: D05B21/00
Filed: 1927-07-14
Abstract: 289,675. Sandt, M., and D³rkoppwerke Akt.-Ges. July 14, 1927. Feed by presser-feet. -An ordinary sewing- machine comprising a reciprocating presserbar and a feed dog is modified for the production of zig-zag stitches by mounting the presser bar so that the presser-foot may be given movements transversely of the line of stitching in order to displace the work in the same directions. In Fig. 2, the collar 6 through which the presser-bar 2 slides is adapted to be rocked by a cam 3 through a member 4 and a link 7. In Fig. 4 the guide 13 for the presser bar is pivoted at 14 and is jogged by the cam 3 through the parts 4, 7, 15. In each case the linkage is adjustable, and the device may be rendered inoperative. In a further modification, the guide 13 is jogged by a cam on a shaft which is rotated intermittently by a lug on the needle-bar engaging a star-wheel. The presser-foot 34 may co-operate with a grinding plate 29, Fig. 11, pivoted at 30 in a recess 28 of a stitch plate 29, Fig. 11, pivoted at 30 in a recess 28 of a stitch plate 27, a pin 32 on the plate 29 engaging a hole 36 in the presser-foot.
Patent GB-187143-A (GB)
Abstract: 187,143. Hymans, E. Oct. 21, 1921. Hand knitting-appliances. - A needle is provided with a detachable head b made of ebonite, hardwood or the like, and adapted to be held by friction on the needle point to retain the work on the needles. The neck b<1> is drilled to receive the needle point.
Patent GB-122217-A (GB)
Title: Improvements in and relating to Tyres.
Inventor: POYNTER AMBROSE MACDONALD
IPC: B60C11/16
Filed: 1917-12-17
Abstract: 122,217. Poynter, A. M. Dec. 17, 1917. Tread bands, projections, and surfaces.-To prevent side-slip, metal studs fitted at one or both sides of the tread of an elastic tyre, or washers fitted under the studs, are formed with projections adapted to engage the ground and with surfaces arranged to abut against the edges of the tyretread. Figs. 5 and 6 show (left) studs 18 fitted over angle-washers 17 in abutment with the edge of the tread 16, and (right) a modification which an additional series of studs 22, of ordinary construction, are fitted further down the side of the tyre. The latter may be formed with ribs 19 to protect the studs from kerbs. Various modifications are described in which the studs are arranged in grooves or recesses at the sides of the tread.
Patent GB-1469498-A (GB)
Title: Control circuits for burner equipment
IPC: F23N5/20
Filed: 1975-05-05
Abstract: 1469498 Burner controls LGZ LANDIS & GYR LUG AG 5 May 1975 [9 May 1974] 18790/75 Heading F4T A circuit for controlling a gas or oil burner comprises a bi-stable blocking relay having two energizing windings 1, 2, and 3, 4, of which the latter winding is connected to a D.C. voltage source 9 for the purpose of switching back after the blocking operation, by means of a fault removal switch 12, and wherein the latter upon actuation, interrupts the current supply to a safety circuit, a capacitor 14 connected to earth, a change-over switch forming the fault-removal switch 12, a diode 6 connected in the blocking direction for a fault removal pulse in series with winding 3, 4, and a second switch 8 in parallel with the series circuit, wherein a switching arm 11 of switch 12 is connected to an electrode of the capacitor, a first switch contact 10 is connectable to said D.C. voltage source and a second switch contact 13 is connected to the connecting point between said diode and winding 3, 4, of the relay, and wherein the change-over switch at the same time acts on the second switch. The mechanical switch 8, Fig. 1 may be replaced by a transistor (16), Fig. 2 (not shown), or a thyristor (19), Fig. 3 (not shown). In operation, current flows from connection 2 to connection 3 and builds up a magnetic field in the relay. If the pulse is a short testing pulse the relay is not actuated, but in the event of a defect, a blocking pulse actuates the relay and current flows in secondary winding 4 to 3 and thence to a blocking switch 17, where an alarm is triggered. After the defect has been removed, change-over switch 12 is manually operated so as to unblock the relay.
Patent GB-477893-A (GB)
Title: Process of polishing a formaldehyde resin
IPC: C08J7/02
Filed: 1936-07-07
Abstract: A process of polishing a formaldehyde resin, or an article made therefrom, comprises subjection the resin to the action of an aqueous hypochlorite solution which is alkaline. Phenolformaldehyde, urea-formaldehyde and thiourea-formaldehyde resins are mentioned, and suitable specified hypochlorites are those of sodium, potassium and calcium.  The solution is preferably used at an elevated temperature, e.g. above 75 DEG  C., and a solution containing about 4 per cent hypochlorite and 0,3 per cent to 1 per cent of free alkali is found to give good results. After polishing, the resin may be washed with water or dipped in 1 per cent aqueous sulphuric acid.