baber/WOPTO huggingface dataset:
Patent GB-1109598-A (GB)
Title: Devices for the welding of articles with a closed weld line
Inventor: BOLOTNIKOV LEONID AFANASIEVICH
IPC: B23K9/08
Filed: 1966-05-09
Abstract: 1,109,598. Arc welding. VSESOJZNY NAUCHNO - ISSLEDOVATELSKY INSTITUT ELEKETROSVAROCHNOGO OBORUDOVANIA. 9 May, 1966, No. 20437/66. Heading H5H. [Also in Division B3] Apparatus for butt welding pipes 3, 3<SP>1</SP> comprises means (not shown) for establishing an arc between the butt ends of the pipes, clamps 1, 1<SP>1</SP> for holding the pipes, a winding 5 associated with the clamps which serves to create a magnetic field causing the arc to travel around the profile of the butt portions, and pneumatic drive means 4 adapted to force the pipe ends together for the butt welding operation by means of pivotally mounted levers 8 having bifurcated ends which bear on the clamps 1, 1<SP>1</SP>. The clamps which are held stationary during the preheating step slide on guide rods 6, 7, on one of which, the levers 8, 9 are pivotally mounted. The upsetting operation is effected immediately molten metal appears on the butt portions of the pipes. In a modified construction (Figs. 3, 4, not shown) the pipe clamps together with the electrical winding form a distinct subassembly and the levers and pneumatic drive means a separate sub-assembly the latter being portable and therefore applicable successively to a variety of pipe joints all of which may be preassembled with pipe clamps thereon ready for welding.
Patent GB-516876-A (GB)
Title: Hand and foot operated hydraulic pierced rivetting tool
IPC: B21J15/20
Filed: 1938-07-11
Abstract: 516,876. Pumps. DUNCTON, H. A. July 11, 1938, No. 20443. [Class 102 (i)] [Also in Group VII] A pump for a hydraulic rivetter comprises a piston c<2> operated by a lever d<2> and working in a cylinder b<2>, oil being led to the cylinder through a valve passage b<3> and discharged through a second passage c'. The pressure is released by a valve d<3> controlled by a lever l operated by a cam k<3>.
Patent GB-504811-A (GB)
Title: New system of bricks with tight joints
IPC: E04B2/06
Filed: 1937-07-23
Abstract: 504,811. Bricks. SEGU,R., and MARTY, E. July 23, 1937, No. 20469. Void. Convention date, July 23, 1936. [Class 87 (i)] A brick, which may be solid or hollow, is provided on its upper and one end face with a channel having inclined sides and extending over the full width of the brick. A corresponding but smaller projection is provided on the lower and other end face so that when the outer edges of two bricks contact as at 3b, 3c a space , c is formed to receive mortar and form an enclosed joint.
Patent GB-183047-A (GB)
Title: Pin or peg spanner or wrench
IPC: B25B13/02
Filed: 1921-07-30
Abstract: 183,047. Tilley, J. T. July 30, 1921. Pin and like wrenches.-A pin or peg wrench for use with nuts of various sizes is constructed of a rigid handle a formed with a short extension a<2>, serrated at a<3>, and bearing a pivoted link c to which is pivoted a second link d formed with a pin d<2> for engaging recesses e<2> in a nut, ring, or the like. A number of intermediate links may be arranged between the links c, d.
Patent GB-1128583-A (GB)
Title: Improvements in or relating to electric circuit arrangements for use in telecommunications exchange systems
IPC: H01H67/32
Filed: 1967-05-03
Abstract: 1,128,583. Automatic exchange systems. SIEMENS A.G. 3 May, 1967 [4 May, 1966], No. 20513/67. Addition to 1, 092, 599. Heading H4K. In a switching matrix comprising a plurality of bi-stable, single winding relays which each have one end of their windings connected to an associated column conductor and their other ends connected via oppositely poled rectifiers to a pair of associated row conductors, at least one of each pair of row conductors includes a voltage threshold device. The device may be a Zener diode or a current-direction independent varistor. In Fig. 1, selective operation of e.g. relay A22 is effected by closing switches Y2 and X2 when these are connected respectively to + and -, U. In order to release A22, the same switches are operated but in this case they must be connected to - and +, U. Operation of more than one relay at a time is prevented by choosing U such that it is greater than the breakdown voltage Uz of a single Zener diode but is less than 3Uz (the latter criterion is obtained by determining the number of Zener diodes which will be encountered in the shortest path parallel to the wanted path). In Fig. 2, operation or release of a relay is effected by closing a selected X and Y switch and by connecting the common Y conductor to +Uan or -Uab respectively. Assuming the thresholds of varistors V and Zener diode Z are all equal to Uz then 2Uz > Uan = Uab > Uz. If Zener diode Z is omitted, then 2Uz > Uab > Uz > Uan.
Patent GB-1023894-A (GB)
Title: Lighting device for dental and surgical procedures
IPC: F21V7/09
Filed: 1964-05-19
Abstract: 1,023,894. Surgical lamps. PELTON & CRANE CO. May 19, 1964 [May 17, 1963], No. 20517/64. Heading F4R. A lighting device for surgical or dental use consists of a light source with a horizontallyextending filament and a reflector shaped as a portion of an elliptic paraboloid other than a paraboloid of revolution with its longer dimension vertical, a shield being arranged in front and to the sides of the light source. The light source may be a double-ended tubular electric lamp with a coiled-coil filament and a filling containing iodine. It is supported between socket members 37 carried in tubular jackets 48 supported on walls 40 forming part of a light shield 23 arranged in front of the lamp 35. The shield 23 is supported from the frame 24 of the reflector 25 by bolts 51 carried on side pieces 44 attached to the shield, springs 53 between the pieces 44 and frame 24 and nuts 52 enabling the position of the lamp 35 and shield 23 to be adjusted relative to the reflector 25. The frame 24 is carried by hollow bearings 17 extending inwards from a yoke 16 connected by a series of pivoted arms (not shown) to a transformer mounted on an upright, the yoke and arms being hollow to allow the passage of electric wires to the lamp. The reflector is symmetrically curved on both sides of the vertical and horizontal central planes in smooth curves equivalent to a series of curved segments of radius decreasing away from the central line and with centres offset from the central line.
Patent GB-293991-A (GB)
Title: Pocket for ties and soft collars
IPC: A47G25/78
Filed: 1927-08-04
Abstract: 293,991. Holzer, J. Aug. 4, 1927. Presses.-A pocket for ties, soft collars, &c. comprises a flat sleeve 1 and a flat insertion flap 2 adapted to be inserted between the folds of the folded tie 5, the tie and the flap being then inserted in the sleeve, 1 so that the tie is flattened by the elastic pressure of the sleeve and is securely held on its inner surface by the flap and on its cuter surface by the sleeve. Insertion of the' flap is facilitated by forming the flap and sleeve of trapezoidal shape and reinforcing the sleeve with longitudinal stays which simultaneously act as guides for the edges of the flap. The flap may be adapted to accommodate two ties by forming it of two plates secured together at their broad ends by a narrow strip of material. A roller or an elastic pad at the narrow end of theflap prevents the article stored from receiving a permanent fold.
Patent GB-1109978-A (GB)
Title: Fluorocarbon copolymers
IPC: C08F214/22
Filed: 1966-05-10
Abstract: Non-elastomeric copolymers of 85 to 92 weight per cent of vinylidene fluoride and 15 to 8 weight per cent of tetrafluoroethylene, and characterized by (a) a plasticity value of 1800 to 4500 mm.2, (b) a cystalline melting point above 150 DEG  C., (c) complete solubility in a 70/30 w./w. acetone/dimethyl acetamide mixture at room temperature, (d) a break strength, impact strength and elongation greater than vinylidene fluoride homopolymer of the same plasticity and (e) lower mould shrinkage than vinylidene fluoride homopolymer, may be prepared by copolymerization in the presence of an organic peroxide at 100 DEG  to 150 DEG  C. and 200 to 2000 atmospheres.  In a preferred process the vinylidene fluoride and tetrafluoroethylene are premixed and added incrementally to a reactor containing water, a fluocarbon surfactant, e.g. ammonium perfluoro-octanoate, and catalyst, e.g. di-t.-butyl peroxide.  The polymers may be made into films, fibres, mouldings and coatings.
Patent GB-374669-A (GB)
Title: Improvements in couplings or clamps for scaffold poles or other bodies
IPC: E04G7/18
Filed: 1931-07-20
Abstract: 374,669. Band clips. MARSHALL, A. C. and STEEL SCAFFOLDING CO., Ltd., 80, Regent Street, London. July 20, 1931, No. 20758. [Class 44.] A scaffold clamp consists of two open-ended U-shaped members, each adapted partially to embrace one pole, the axes of the poles being disposed at right angles. The U-shaped member a is provided with projections d, e, one at each end, which form a groove for the reception of the tube z which abuts against the upper portion of the lower tube y. To one projection e is pivoted the other U-shaped member b, while to the other is pivoted a clamping bolt h, the shank of which may pass into a slot in the other clamping member, the two members being drawn together by a nut m which is provided with a sleeved extension and a flange o to engage behind projections on the end l of the upper clamping member. By this arrangement, the hinging and clamping means of the upper clamping member are disposed at opposite ends of the lower clamping member. The clamping bolt may pass through an aperture provided in the end of the upper clamping member and screw into a nut provided on the projection d. Bolts p are provided in the lower clamping member to secure it to the tube carried by it and the upper clamping member may be provided with a stop so that it may form a support for a tube when in open position.
Patent GB-947019-A (GB)
Title: Improvements in or relating to elastic wave generator
IPC: G10K5/02
Filed: 1962-05-30
Abstract: 947,019. Whistles. TEKNIKA Inc. May 30,1962 [June 14,1961], No. 20763/62. Heading G5J. In a whistle for generating ultrasonic vibrations, a jet of gas is directed by a nozzle 31 on to a tapered deflector 13. 5 in front of the single opening of a resonant cavity 11. The gas has a substantially free escape path in directions transverse to the axis of the jet. The body 10 in which the cavity 11 is formed is adjustably mounted in a sleeve 25 carried by the body 30 on which the nozzle is formed. The nozzle 31 may be surrounded by a secondary cavity 38 resonant at the operating frequency. The body 10 may be surrounded by a body 58 formed with reflector surface 52 for guiding the waves.
Patent GB-320647-A (GB)
Title: Improvements in moving coil loud speakers
IPC: H04R9/04
Filed: 1928-07-18
Abstract: 320,647. Lanchester, F. W. July 18, 1928. Diaphragms; loud-speakers.-In moving-coil loud-speakers in which an acoustic passage passes axially through the central pole of the, field magnet, the diaphragm has a double suspension of outwardly extending cords or fibres constraining its motion to be solely axial. The diaphragm 4, Figs. 1 and 2, attached to the moving-coil, is suspended peripherally by cords 5 and also at its apex by cords 8. Fig. 3 shows a modification where two cones 4, 10 joined by a wooden spar 11 are suspended by cords 5, 8.
Patent GB-207577-A (GB)
Title: Improvements in rotary valves for internal combustion or steam engines
IPC: F01L7/08
Filed: 1922-07-31
Abstract: 207,577. Tattersfield, J. H. July 31, 1922. Valves.-A rotary valve 2 of conical form is provided with two ports 3, 4 controlling inlet and exhaust passages 13, 14. The valve is pressed to its seat by the cylinder pressures and by a spring 10.
Patent GB-429712-A (GB)
Title: Improvements relating to mounting devices for the springs arranged between the striking hammer and the driving member of percussive tools
IPC: B25D17/06
Filed: 1934-07-17
Abstract: 429,712. Percussive drills. SIEMENSSCHUCKERTWERKE AKT.-GES., Siemensstadt, Berlin. July 17, 1934, No. 20920. Convention date, July 17, 1933. [Class 124] [See also Group XXXII] The main springs of percussive tools have their ends supported on pads of material capable of damping out vibration. The spring 11 bears on the metal ring 14 which is supported on the rubber ring 12. In a modification this ring is replaced by a spring.
Patent GB-710124-A (GB)
Title: Improvements in and relating to methods of measuring thickness or density of thin sheets
IPC: G01B17/02
Filed: 1951-09-05
Abstract: 710,124. Testing materials by sonic or ultrasonic waves. BRITISH THOMSON-HOUSTON CO., Ltd. Sept. 5, 1951 [Sept. 22, 1950], No. 20965/51. Drawings to Specification. Class 118 (2). The density or thickness of a sheet of paper or metal foil is determined by placing it in an air space between a cone-shaped electromechanical transmitting transducer operating at a frequency of less than 40,000 c/s and a similar receiving transducer, the change in intensity or phase of. the received waves being measured. When using low frequencies, e.g. a few hundred cycles per second, the sensitivity is increased by adjusting the frequency so that resonant standing waves are produced between the transmitter and receiver before inserting the sheet midway between them. Fig. 1 (not shown). At higher frequencies, e.g. 20 kc/s, the transducers are spaced further apart and undesirable standing waves are reduced by placing the sheet obliquely to the transmission path.
Patent GB-499787-A (GB)
Title: Improvements in and relating to electric motors
IPC: H02K17/08
Filed: 1937-07-29
Abstract: 499,787. Induction motors. BRITISH THOMSON-HOUSTON CO., Ltd., and MAGGS, A. H. July 29, 1937, No. 21041. [Class 35] Each end of the auxiliary winding of a single-phase slip ring capacitor motor is connected to a condenser, the winding and condensers being in series across the mains. In the form shown, each terminal of the auxiliary winding B is connected to a condenser C and the other terminals of the condensers are connected to the supply leads.
Patent GB-210875-A (GB)
Abstract: 210,875. Player, E. S. Nov. 9, 1922. Drawings to Specification. Helmets.-In an airman's helmet an ear-piece is provided consisting of a luffa protected by cottnn-wool and having a wire support and tubular &c. cushions. Specification 22608/08 is referred to.
Patent GB-390043-A (GB)
Title: Improvements in the manufacture of stockings and in machines for their manufacture
IPC: D04B11/22
Filed: 1932-07-26
Abstract: 390,043. Knitting-machines. HILSCHER, A., HILSCHER, C., and HILSCHER, E., (trading as HILSCHER, G.), 8, Beckerstrasse, Chemnitz, Germany. July 26, 1932, No. 21101. Convention date, Nov. 9, 1931. [Class 74 (ii).] Relates to the production of double-topped stockings on straight-bar machines wherein the first row of loops are held on the needles during the knitting of the double top and finally released and knitted with the last row of loops on completion of the top. The needles on which the first row of loops are held are associated with auxiliary sinkers d, Fig. 1, which are slotted to hold these loops whilst the remaining needles are associated .with ordinary sinkers c, at least one of the sets of sinkers being arranged in pairs. The auxiliary and ordinary sinkers are mounted on a common knocking-over comb and the upper webs of the sinkers d are so formed that in the rearmost position of the comb the first and last thread laps are engaged by and released from the retaining edges x. An auxiliary notched presser bar r, Fig. 9, mounted on the sinker head cap above the continuous presser bar but independently operated, depresses the hooks of alternate needles during the formation of the first two rows of loops before the needle tips reach the thread on the loop forming sinkers.
Patent GB-762426-A (GB)
Title: Improvements in packing containers of non-metallic material with steel or metal fittings
IPC: B65D8/04
Filed: 1954-07-20
Abstract: 762,426. Portable containers ; stoppers. MAUSER, A. July 20, 1954 [March 12, 1954], No. 21105. Classes 66 and 125(3). A non-metallic container 1, Fig. 1, having metallic fittings, e.g. end-closures is provided with protective coverings for the metal fitting to prevent contamination of the contents. The bottom closure 2 is provided with a covering 8 e.g. of crepe paper or synthetic material rolled into the end-joint 9, and the metal sleeve 4 reinforcing the top end of the container is covered by an apron 10 secured between the sleeve 4 and container 1 and turned back on itself to cover the metal sleeve over its inner exposed surface. The apron 10 can be of sufficient length to enable it to be tied up like a sack after filling or it can be continued over the mouth rim of the container in which case the metal top closure 3 is provided with a protective covering 12.
Patent GB-982727-A (GB)
Title: A process for producing tryptophan hydantoin
IPC: C07D233/72
Filed: 1963-05-27
Abstract: Tryptophan hydantoin of the formula <FORM:0982727/C2/1> is produced by heating b  - (hydanto - 5 - yl) - propionaldehyde of formula <FORM:0982727/C2/2> in a solution containing a strong acid.  The strong acid, preferably at 0.01 to 0.5 Normal, may be hydrochloric acid, sulphuric acid, benzene sulphonic acid, toluene sulphonic acid, oxalic acid, formic acid or a strong cation exchange resin.  The solvent may be water, methanol, ethanol, acetic acid or an aqueous solution thereof, and the reaction temperature is maintained at 60 DEG  to 100 DEG  C.  For the preparation of b -(hydanto-5-yl)-propionaldehyde see Specification 982,726.
Patent GB-594397-A (GB)
Title: Improvements in and relating to limit switch arrangements
IPC: G05D3/16
Filed: 1943-12-17
Abstract: 594,397. Control of D.C. motors. SPERRY GYROSCOPE CO., Inc. Dec. 17, 1943, No. 21219. Convention date, Dec. 26, 1942. [Class 38(iii)] [Also in Group XXXVIII] In a control system, a controlled object, driven by a motor to some desired position, operates a limit switch when it approaches a limiting position in one direction, thus bringing into circuit a unidirectionally conducting device controlling power supply to the motor so that it can only be energised to return the controllable object from the limiting position. In the follow-up system shown, the controlled object 4 is driven by motor 12 and on approaching a limiting position cam 29 opens the contacts 24, 24<1>, and brings into circuit the rectifiers 22, the flow of power being from 14 to 15. Current tending to drive the object further in the same direction produces a high voltage drop across the 'rectifiers which energises the relay 17 thus closing contacts 18, 18<1> and short circuiting the armature of the motor to effect braking. Current flowing in the opposite sense will find a short circuit path between 15 and 14 and the object will move away from the limiting position. The direction and speed of the motor may be controlled by a signal voltage indicative of the displacement of the object from the desired position modified if necessary by other factors such as its speed. The circuit between the points 14, 15 can be in the circuit of the control signal instead of the circuit of the motor.
Patent GB-578611-A (GB)
Title: An improved thermally operated electric switching device
IPC: H01H37/58
Filed: 1943-12-17
Abstract: 578,611. Magnetic switches. LANDIS & GYR SOC. ANON. Dec. 17, 1943, No. 21238. Convention date, Dec. 21, 1942. [Class 38 (v)] The flux of a permanent magnet 1 is normally shunted through a member 4 adapted to be heated by a coil 5 (or itself to act as a heating conductor) so as to lose its magnetic properties, whereby the armature 6 is attracted to the poles 2, 3 against the action of spring 7 to open the contacts 8. Cooling of the member 4 allows the contacts to reclose, the movement of the armature in both directions being rapid due to the changing reluctance as it moves towards or from the poles. The Specification as open to inspection under Section 91 states also that the thermal member when acting as its own heater may be rotatable between the poles or mounted on one of them, and the armature may comprise the thermallysensitive member. This subject-matter does not appear in the Specification as accepted.
Patent GB-244159-A (GB)
Title: The manufacture of new accelerators and of intermediate compounds for use in the vulcanization of rubber
Filed: 1924-09-09
Abstract: An accelerator of vulcanization is prepared by desulphurizing, preferably as described in Specification 223,410, diarylthioureas containing an alkylated amino group in each of the aryl residues. For example, tetramethyl-, or tetraethyl-diaminodiphenylthiourea is prepared by the condensation of unsymmetrical dimethyl- or diethyl-p-phenylenediamine with carbon bisulphide, and on desulphurizing, tetramethyl- or tetraethyl-pp-diaminodiphenylguanidine is obtained.  In the same way is prepared p-diethyldiamino-m-dimethyldiphenylguanidine.
Patent GB-1201880-A (GB)
Title: Back lighted electrostatic copyboard
IPC: G03B27/62
Filed: 1969-04-25
Abstract: 1,201,880. Supporting sheets electrostatically. SIMCO CO. Inc. April 25, 1969 [June 17, 1968], No. 21308/69. Heading G2A. [Also in Division H1] An electrostatically pinning copyboard comprises a non-conductive face member A, an electrically conductive liquid C in contact therewith and a D. C. high voltage power supply D one side of which is connected to the liquid C. A second non-conductive plate B is provided behind the liquid C, preferably distilled water. The plates A, B are preferably translucent to allow of back lighting by a source 32. The liquid C is surrounded by a stainless steel electrode 12 and a silicone rubber gasket 14.
Patent GB-1000107-A (GB)
Title: Apparatus and process for bringing two or more phases into intimate contact with each other
IPC: B01F27/94
Filed: 1963-05-28
Abstract: 1,000,107. Contacting in liquids. SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ N.V. May 28, 1963 [May 30, 1962], No. 21320/63. Heading B1F. A process for contacting immiscible liquids, liquids and gases in the presence or absence of finely divided solids is carried out in reactor 1. In relation to the contacting of immiscible liquids the light phase is supplied at 3 and discharged at 4 while the heavy phase is supplied at 2 and discharged at 5. The rotor 6 rotates between stator rings 8 and 10 of approximately equal surface area and the surface area of the rings is approximately equal to half the free passage of the housing. The rotor may be cylindrical or may be strips which describe a cylindrical surface. The stators on the side where the disperse phase flows against it may be provided with steel wool and/or synthetic fibres to promote coalescence. The grids 15 and 17 also promote coalescence. Specification 659,241 is referred to.
Patent GB-990195-A (GB)
Title: Improvements in or relating to high voltage electric cables
IPC: H01B7/02
Filed: 1962-06-01
Abstract: 990,195. Cables. SUMITOMO ELECTRIC INDUSTRIES Ltd. June 1, 1962 [June 2, 1961], No. 21324/62. Heading H1A. A cable is made by winding a non-porous tape around stranded conductors and applying a layer of a polythene compound containing an organic peroxide and causing a reaction to produce cross-linked polythene insulation. The conductors may be lapped with two layers of tape, the inner layer of porous material and the outer of non-porous material. The former may be of polythene terephthalate, polyamide or P.T.F.E. and the latter of semi-conductive rubber coated fabric.
Patent GB-1602074-A (GB)
Title: Method of facilitating genetic exchange in streptomyces and nocardia by protoplast fusion
IPC: C12R1/465
Filed: 1978-05-23
Abstract: Gene exchange in organisms of the genera Streptomyces and Nocardia is facilitated by using the technique of protoplast fusion. In this technique, physical and enzymatic barriers to gene exchange are overcome and the formation of hybrid cells is favoured. The process is particularly suitable for the development of hybrid strains having specific properties.