baber/WOPTO huggingface dataset:
Patent GB-1311951-A (GB)
Title: Process for arylating olefins
IPC: C07C65/32
Filed: 1970-04-09
Abstract: 1311951 Aromatic substitution of olefines PRB SA 9 April 1970 [10 April 1969 13 Nov 1969 31 March 1970] 16906/70 Heading C2C A process for the arylation of an olefin comprises reacting an aryldiazonium salt with an olefin in an unbuffered medium in the presence of a catalytic amount of a copper halide in the presence of an alkanoic acid at a temperature of from 0‹ to 40‹ C. The invention also comprises 1 - chloro - 3 - methyl - 4 - (6 - chloroo - tolyl) - but - 2 - ene, 1,2,3 - trichloro- 4 - (2,4,5 - trichlorophenyl) - but - 2 - ene, 1 - (2,6 - dichlorophenyl) - 4 - chlorobut - 2 - ene, 1 - chloro - 3 - methyl - 4 - (2,6 - dichlorophenyl)- but - 2 - ene, 2,3 - dichloro - 4 - (2 - fluorophenyl)- n - butane, 1 - chloro - 3 - methyl - 4 - (A) - but - 2 - ene, 1,2,3 - trichloro - 4 - (A) - but - 2 - ene, 1,2 - epoxy - 3 - chloro -  4 - (A) - butane, where A = 2 - chlorophenyl, 1,2 - dichloro - 3 - (4 - chlorophenyl)- n - butane, 1 - chloro - 4 - (3,4 - dichlorophenyl)- but-2-ene and the following compounds where B = 3-chloro-o-tolyl: α-bromo-#-(B)-propionitrile, α - chloro - α - methyl - (B) - propionitrile, methyl α,α - dichloro - # - (B) - propionate, # - chloro - γ - (B) - butyro - nitrile, 2 - chloro- 3 - (B) - propanol, α - chloro - # - (B) - propionaldehyde, α - chloro - # - (B) - n - butyraldehyde, 1 - chloro - 2 - (B) - ethyl acetate, 1- chloro - 1 - phenyl - (B) - ethane, 1-chloro- 3 - methyl - 4 - (B) - but - 2 - ene, 2 - chloro- 3 - (B) - propyl formate, 3 - [2 - chloro - 3 - (B)- propoxy] - propanol, 1 - chloro - 4 - (B) - but- 2 - ene, 3 - chloro - 3 - methyl - 4 - (B) - butan- 2 - one, 1,2 - dichloro - 2 - methyl - 3 - (B)- propane, 1 - ethoxy - 1 - chloro - 2 - (B) - ethane and α - chloro - α - methyl - # - (B) - propionaldehyde. Numerous additional products are listed.
Patent GB-476060-A (GB)
Title: Improvements in and relating to telescopic umbrella frames
IPC: A45B19/04
Filed: 1936-06-18
Abstract: 476,060. Umbrellas. KORTENBACH, K., KORTENBACH, jun., A., and WORRING, F. June 18, 1936, No. 16959. Convention date, Oct. 17, 1935. [Class 134] An umbrella comprises telescopic ribs and stick and each rib comprises a U-shaped part 13, Fig. 1, provided with a sleeve 14, pivoted to a stretcher 7, and a transverse or angular slot in which a projection 17 on the other rib part 12 is adapted to engage in the manner of a bayonet joint when the runner 5 is rotated relatively to the top notch. The inner stick part 1, Figs. 1 and 6, has a groove 3 in which a pressedout projection 4 on the stick part 2 is adapted to engage to permit a limited relative rotation of the stick parts. The runner 5 is secured in the upper position by a spring 9 and in the lower position by a spring 8, and is provided at its lower end with a flange to facilitate its movement over the spring 8. A U-shaped spring 18 has a button 20 which projects through an aperture in the member 1, and a further cylindrical or round-headed button 19 which is adapted to project through holes in both stick members 1 and 2 and to limit the extension thereof. The ribs are rotated relatively to each other by the rotation of the stick part 2 on the part 1, the rotation being limited by the restricted movement of the projection 4 in an aperture in the stick part 1. After rotation the relative movement of the stick parts is restricted by the buttons 19, 20 which press against the inner surface of the tube 2. The rib tips are housed in the closed position within the handle 22, Fig. 11, which is secured on a tube 24 slidable on the stick part 2. A pin 25 slidable in a slot in the tube 2 and also between the sides of a U-shaped leaf spring 27 prevents rotation of the handle. Holes in the stick part 2 above and below the projection 4 are provided to enable the stick parts 1, 2 to be assembled by means of a fork-shaped tool.
Patent GB-879941-A (GB)
Title: Recovery of lithium from ore
IPC: C22B26/12
Filed: 1958-05-29
Abstract: A solution of lithium sulphate is obtained by leaching the product obtained by mixing a lithium ore, at least 80% of which has a particle size of 44 microns or less, with at least 25% by weight of sulphuric acid of 25-100% by weight strength and heating #  the mixture to 245-400 DEG C. at at least 50 p.s.i.g.  Ores referred to are raw or decrepitated spodumene, amblygonite, lepidolite and petalite.  In a modification water may be added to assist in supplying the acid to the powder evenly, provided the proportion of sulphuric acid in the total acid plus water is at least 25% by weight.  Where the amount of water added is such that the pressure would increase above 500 p.s.i.g. during heating, the gases may be bled off, or in the initial heating the reaction vessel may be kept open until a temperature of 125 DEG C. is reached; such a temperature may be attained by the mixture without application of heat.  Detailed examples are given.
Patent GB-663119-A (GB)
Title: Improvements in ring spinning machines
IPC: D01H9/04
Filed: 1949-06-29
Abstract: 663,119. Ring spinning machines. BRITISH CELANESE, Ltd. June 29,1949 [June 29, 1948], No. 17217/49. Class 120(ii) In a ring spinning machine having a vertically reciprocable ring rail. the ring rail is capable of being raised above the level of the spindles, permitting turning of spindle rails to remove filled bobbins and present empty ones. The ring rail 16 is raised above the spindles 14 by lever mechanism (not shown), operated by a cam 33, the follower 36 of which is projected into its path by a solenoid 34 energized at intervals by counter mechanism (not shown). The cam 33 disengages the normal ring rail traversing cam 21 from its follower 23. A solenoid 54 draws a gear 58 into the path of a sector 61 causing rotation of the spindle rails 12 through 180 degrees by the gear trains 61, 58, 68, 69, 72, 73. Prior to rotation of the rails 12, switches 38, 40 operated by the rail 16 cause the threads 19 to be sucked into conduits 49 and severed against a sharp edge. After rotation of the rails, the rail 16 operates the switches to cause a momentary flow of air from the conduits 49 to blow the severed thread into contact with the empty bobbins. The rails 12 may be replaced by turrets carrying a number of spindles. The rails 12 are locked in position during winding, by cams 76 engaging slots in the gears 73.
Patent GB-106235-A (GB)
Title: Improvements relating to Labels, Tickets and the like.
Inventor: HAMILTON MARIETTA
IPC: G09F3/14
Filed: 1916-11-30
Abstract: 106,235. Hamilton, M. Nov. 30, 1916. Labels.-In tie-on labels or tickets wherein the tying-string extends along the edges of the label to reinforce them the spring is secured by turning the edges 2 of the label over it and fastening them by adhesive. The extending ends of the string may be knotted at 4 and 5.
Patent GB-750166-A (GB)
Title: Improvements in or relating to ladies' stockings
IPC: D04B9/54
Filed: 1953-06-22
Abstract: 750,166. Stockings. BOOTH, A., and SYMES, E. June 22, 1954 [June 22, 1953], No. 17245/53. Class 141. [Also in Group VIII] An additional welt 11, knitted by rotation, is knitted integrally with a seamless stocking or is subsequently attached at a point below the usual welt 10 and so extends that its upper edge is lower than that of the usual welt. The additional welt may extend inside or outside of the stocking. The usual welt may also be separately formed and subsequently attached to the stocking.
Patent GB-210727-A (GB)
Title: Means and method of operating internal combustion engines with gas derived from calcium carbide
IPC: C10L3/02
Filed: 1923-07-03
Abstract: 210,727. Meyers, R. J. Feb. 3, 1923, [Convention date]. Spray carburettors.-In an engine employing acetylene as a combustible the gas is led through the pipe 43 to a chamber 45 and thence through an aperture controlled by a needle-valve 46 into the induction pipe 47 of the engine G. In a modification the gas may be delivered directly into the induction-pipe 47 through a nozzle provided with a manually-controlled needle-valve.
Patent GB-255092-A (GB)
Title: Improved process for recovering tin from tin-plated materials
IPC: C22B25/06
Filed: 1926-07-09
Abstract: 255,092. Jacobsen, J., Goffin, J., Goffin, L., and Renson, L. July 9, 1925, [Convention date]. Tin, depositing.-Tinned scrap is treated with hydrochloric acid containing dissolved chlorine which is introduced from an outside source such as a bottle of liquid chlorine. The solution is divided, a part being treated with a base to obtain tin hydrate, which is used to neutralize, the excess acid in the remainder. Sulphuric acid is then added, and the solution is readv for electrolysis. Alternatively, the tin chloride solution is concentrated and cooled, and the separated crystals are dissolved in water, and sulphuric acid is added to form the electrolyte. The electrolyte is agitated, and a pressure of 12- volts is employed. The voltage, is varied, according as compact or porous tin is desired. By varying the concentration and intensity of the current, an allotropic variety of tin may be obtained which is more readily soluble in hydrochloric acid than is ordinary tin.
Patent GB-222926-A (GB)
Title: Improved textile cloth
IPC: D03D15/00
Filed: 1923-07-04
Abstract: 222,926. Dinsmore, J. July 4, 1923. Mixed fabrics; yarns specially twisted or doubled, fabrics with.-The weft or warp or both comprise composite yarns consisting of linen and woollen threads twisted together, the linen thread being not less than one-fourth the weight of the woollen thread. The fabric is employed for outer garments. Reference has been directed by the Comptroller to Specifications 23172/95 and 22318/06.
Patent GB-1442573-A (GB)
Title: Thread feeder for textile machines
IPC: D04B15/48
Filed: 1974-04-19
Abstract: 1442573 Changepeed gear IRO AB 19 April 1974 [30 April 1973 31 Dec 1973] 17306/74 Heading F2D [Also in Division D1] The storage drum of a thread feeder for a textile machine (see Division D1) is rotated by means of a drive shaft 18 on which are mounted two pulleys 19, 20 respectively engageable with driving belts 2, 3 travelling at different speeds, the pulley 19 being rotationally rigid with the shaft for driving the latter while the pulley 20 is an idler pulley, both pulleys being axially removable from the shaft and interchangeable in position thereon so that the pulley 19 may engage either driving belt to change the speed of the shaft. The pulleys may be removable as a single, invertable, unit. The driven pulley or unit of two pulleys may be replaced by a drive pulley/unit having a different diameter/a drive pulley of different diameter. A plurality of feeders may be mounted round, e.g. a knitting machine with groups of the feeders having drive pulleys of different diameters, the drive and idler pulleys of the respective feeders engaging two endless belts driven by separate electric motors through variable diameter drive wheels.
Patent GB-732963-A (GB)
Title: Apparatus for cutting the foliage from root crops such as sugar beet
IPC: A01D23/02
Filed: 1951-07-23
Abstract: 732,963. Root-crop topping machines. HARDY, F. H. July 23, 1952 [July 23, 1951], No. 17407/51. Class 6 (3). A machine for topping sugar beet comprises a power-driven endless band 14 mounted on a frame 10 which is yieldingly suspended on a plate 30 beneath a vehicle by suspension springs 26 and front and rear links 15A, 15B and 16A, 16B respectively and a knife 27 carried on the frame below the lower run of the endless band, the lower run of the band moving in a direction towards the knife. As shown the links 15A, 15B and 16A, 16B are attached to spindles 18 and 19 respectively which have upstanding levers 20, 21 respectively attached thereon. The levers 20, 21 are attached to a link 22 which is adjustable by means of a handle 23 to vary the angles made by the spaced pairs of links with the vertical. The endless band 14 is driven from the power take-off shaft of a towing tractor. Alternatively the endless band may be driven by chain and pinion gearing from a road wheel. The plate 30 may be disposed at an inclination to the direction of movement of the vehicle. The machine may be used in advance of a harvester as described in Specification 732,962.
Patent GB-672262-A (GB)
Title: Improvements in or relating to catapult devices
IPC: F41B3/02
Filed: 1949-07-01
Abstract: 672,262. Toy projectors. BIELCZYK, J. L. June 16, 1950 [July 1, 1949], No. 17431/49. Class 132 (iii). A catapult, in the embodiment shown in Fig. 1, includes a shank F which increases the distance available for extending the elastic members. The shank is shaped at its rear end into a grip G and is jointed by a member E to the fork A of which the arms have sighting notches. Further embodiments, Figs. 6, 8, 17 (not shown), are adapted for use in the manner of a rifle. The fork in this type is deeper and has sighting notches marked off in ranges. An anchor or peg provides steadying means for the hand which draws back the missile ejector and the butt may be integral with the shank or an attached one of metal or plastic, Fig. 19 (not shown). Construction and assembly of fork-shank jointing members are described. Specification 653,458 is referred to.
Patent GB-750671-A (GB)
Title: Improvements in and relating to gymnastic apparatus
IPC: A63B21/16
Filed: 1954-06-14
Abstract: 750,671. Gymnastic apparatus. GEHR1, F. H. June 14, 1954, No. 17461/54. Class 132(1) Gymnastic apparatus comprises a rope or cord 25 which runs over a pulley 24, is spring loaded and has, at each end. two flexible sleeve-like devices 31 which encircle, at, spaced points, part of one of the extremities of the human body so that the rope or cord can be tensioned against the action of the spring. A strip of webbing 31 padded by a strip 35, e.g. of sponge rubber, has a webbing strip 32 attached to one of its ends and passed through a ring 33 on its other end to form one of the sleeve like devices. The free end of strip 32 is secured to a ring 30 on one end of a rope 29 whose other end carries a similar sleeve. Rope 29 passes over a pulley 28 in a carrier 27 suspended by an adjustable loop 26 from the end of a rope 25. Rope 25, whose other end carries a similar pair of sleeves, passes over a pulley 24 whose carrier 23 is pivoted on a pin 22 integral with a ring 21 secured to one end bf a coil spring 10. The other end of coil spring 10 is secured to a piece of webbing which may be placed over the top of a door and is held. when the door is closed, by a pin 15 secured to its other end.
Patent GB-1349365-A (GB)
Title: Laser doppler velocimeter
IPC: G01S17/50
Filed: 1971-05-27
Abstract: 1349365 Detecting fluid velocity BBC BROWN BOVERI & CO Ltd 27 May 1971 [29 May 1970] 17477/71 Heading H4D A laser Doppler velocimeter for determining the velocity Fig. 3, of an area of fluid, comprises a laser producing a single beam, an optical system, e.g. mirrors S 1 , S 2  and Kosters prism P, splitting the beam into two parallel beams I and II, an objective L 1  focusing and directing the beams on to the investigated area of fluid and also receiving back the Doppler frequency shifted scattered light and directing it, via focusing lens L 2 , aperture plate B 1 , lens L 3  and interference filter F, on to a photomultiplier detector Ph. By this arrangement, all the elements are coaxial and compactness is achieved. If k i1  and k i2  are the vectors of the beams I and II, k i1  and k i2  are the corresponding unit vectors, the Doppler frequency shifts of the beams are # d1  and # d2  and the wavelength of the incident beam is # 0 , then the output of the photo-detector Ph, contains a Doppler difference frequency component ##d given by the scalar product The photo-detector may be a semi-conductor diode. The beam splitter may be a thick plate PG, Fig. 4, having half silver half-face HV and full silvered half-face V. Beam II result from the passage of the incident beam through the plate and beam I from reflection on faces HV and V.
Patent GB-389794-A (GB)
Title: Improvements in electric measuring and power supplying apparatus
IPC: G01R5/14
Filed: 1931-06-16
Abstract: 389,794. Current and pressure meters ; loud-speakers. DEPAEPE, H., 78, Rue Fondary, Paris. June 16, 1931, No. 17501. Convention date, June 17, 1930. Void [Published under Sect. 91 of the Acts]. [Class 37.] In a moving iron electric measuring - instrument or loud-speaker the permanent magnet providing the directing field is provided with an additional limb 4 terminating equidistant from the magnet poles, the permanent magnet being included in a magnetic circuit energized by the actuating current so as to weaken the directing field. In the Figure the energizing winding is divided into two series connected parts 5, 6 one on each limb of the permanent magnet and wound so that the flux due to each flows upwards (or downwards) in each limb, thereby producing a pole at the end of the limb 4 and decreasing the strength of the poles 2, 3 to produce rotation of the pivoted moving core 10. In a modification the winding is all arranged on the limb 4. In the application to electric measuring-instruments the aperture of the scale, over which a pointer attached to the moving core 10 moves, is varied by adjusting the position of the pole on the limb 4 with respect to the pivot of the moving core 10 and the line joining the poles 2, 3 of the permanent magnet, the graduation of the dial depending on the shape of the core 10. As applied to loud-speakers, the moving core 10 is connected through a rod to a diffuser.
Patent GB-776922-A (GB)
Title: Improvements in electric socket connectors
IPC: H01R13/652
Filed: 1953-06-24
Abstract: 776,922. Two-part couplings. YOUNG, S. G. Sept. 24, 1954 [June 24, 1953], No. 17575/53. Class 38 (1). The earth contact 8 of a socket connector forms part of a sub-assembly for mounting in the connector base and comprising a bracket 1 and terminal 13, the terminal having a neck 14 which is passed through apertures in the bracket and contact and riveted over to secure the parts of the sub-assembly together. The contact comprises a base portion 9 having the aperture for the neck 14 and from which extend laterally corrugated, resilient wings 12 which receive a flat pin contact between them. The wings may be concave to receive a round pin. When the sub-assembly is in position in the socket connector, walls 17, 17<SP>1</SP> of the base thereof re-enforce the wings 12.
Patent GB-1361967-A (GB)
Title: Pyrazine 4-oxide derivatives and process for their preparation
IPC: A61P3/06
Filed: 1973-04-12
Abstract: 1361967 Pyrazine 4 oxide and derivatives thereof CARLO ERBA SpA 12 April 1972 [28 April 1972] 17645/73 Heading C2C The invention comprises compounds of the general formula wherein each of R<SP>1</SP>, R<SP>2</SP> and R<SP>3</SP>, which may be the same or different, is a hydrogen or halogen atom or a C 1  to C 6  alkyl or alkoxy group, at least one of R<SP>1</SP>, R<SP>2</SP> and R<SP>3</SP> being other than a hydrogen atom; R<SP>4</SP> is a hydroxyl or C 1  to C 6  alkoxy group or a group of formula -NR<SP>5</SP>R<SP>6</SP> wherein each of R<SP>5</SP> and R<SP>6</SP>, which may be the same or different, is a hydrogen atom or a C 1  to C 6  alkyl group; or, when R<SP>4</SP> is a hydroxyl group, a pharmaceutically acceptable salt of said compound. The compounds can be prepared by oxidizing a compound of general formula wherein R<SP>1</SP> to R<SP>4</SP> are as defined above, and then if desired converting by methods know per se. The compound with the general formula of this invention so produced into another compound of the general formula of this invention and if desired, when R<SP>4</SP> is a hydroxyl group, reacting the compound of the general formula of the invention with a base to give a pharmaceutically acceptable salt. The oxidation is preferably performed with peracids, which may be prepared in situ. The preferred peracids are peracetic, m-chloro perbenzoic and permaleic acid.
Patent GB-1504927-A (GB)
Title: Soap and/or synthetic detergent tablets having a resistance to cracking
IPC: C11D3/20
Filed: 1975-04-29
Abstract: 1504927 Soap or synthetic detergent tablets HENKEL & CIE GmbH 29 April 1975 [10 June 1974] 17667/75 Heading C5D Soap or synthetic detergent tablets having an improved resistance to cracking, contain 1 to 10% by wt. of the soap or synthetic detergent, of di-octyl adipate. Preferably, soap contains 4 to 6% by wt. of the anti-cracking agent and synthetic detergent 1 to 3% by wt. of the anti-cracking agent. The anticracking agent may be di-octyl adipate containing 50% n-octyl and 50% isooctyl. Optional ingredients are (A) superfatting agents (B) skin protection agents (C) binding agents (D) germicides (E) optical brightening agents (F) sequestrants (G) colours and colour stabilizers such as sodium dithionite, sodium thiosulphate and sodium sulphite. A detergent tablet contains olefin sulphonate, disodium sulphosuccinate acid ester, tallow fatty acid, lanolin and water.
Patent GB-1341539-A (GB)
IPC: G01G7/04
Filed: 1972-09-20
Abstract: 1341539 Weighing METTLER INSTRUMENTE AG 20 Sept 1972 [22 Sept 1971] 17726/72 Heading G4H [Also in Division G1] In a weighing balance, a load pan 17 and reference mass 13 resiliently mounted for independent vertical displacement are automatically returned towards neutral positions by direct currents in respective restoring coils 10, 11 in a common magnetic field, the current in the load restoring coil 10 being derived by switching pulses of the (continuous) current in the reference restoring coil 11, the length of the pulses depending on the displacement of the load from its neutral position. As shown, the restoring coils are in an annular gap between a permanent magnet 3, 7 and a magnetic housing 2. Capacitive detector 18, 18<SP>1</SP> responsive to displacement of the reference mass is connected to a P.I.D. controller 27 supplying current to restoring coil 11 which passes through a buffer stage 22 having low input and high output impedance to a switching circuit 23 where it is switched to pass alternately through the load restoring coil 10 or a dummy load 24. A second capacitive detector 19, 19<SP>1</SP> responsive to displacement of the load is connected via a second P.I.D. controller 26 to a pulse length modulator 27 controlling the length of pulses derived through a 1 ; 20,000 frequency divider 29 from a 10 MHz quartz oscillator 28 to control the switching of circuit 23 which is synchronized directly with oscillator 28 via flipflop 30. The length of the load restoring pulses is measured by counting pulses from oscillator 28, gated at 31, in a counter 33. The total count for 100 load restoring pulses is sent to a store 35 connected to a B.C.D. output 37 and indicator 36, control pulses for this and for resetting the counter 33 being derived via a 1 : 100 frequency divider 34. Closing tare switch 40 stores the tare weight in a second store 38. In subsequent weighing this is introduced into counter 33 which at first counts down to zero and then reverses, thereby subtracting the tare from the total weight.
Patent GB-658726-A (GB)
Title: Means for securing bicycle and the like hubs
IPC: B62K25/02
Filed: 1949-07-05
Abstract: 658,726. Detachable wheel mountings for cycles. JUY, L. C. H. July 5, 1949, No. 17730. Convention. date, July 9, 1948. [Class 136 (ii) ] In securing means for cycle hubs of the type in which a hollow hub spindle 1 is engaged by an inner spindle 3 the longitudinal movement of which clamps the frame-lugs 11, 12 against the hub 2, one end of the inner spindle is associated with a cam 7 controlled by a radial lever 9 and acting frictionally against a cap 10 to urge it against the outer surface of the lug 11 against the action of a spring 16, whilst the other end of the inner spindle is drawn inwards to clamp the cap 4 on the outer surface of the lug 12. The cap 4 is clamped to the spindle 3 by a grub screw 5. The opposite end of the spindle 3 has an eye 6 in which a stud 8 carrying the cam 7 is pivotally mounted. Springs 15, 16 urge the caps 4, 10 outwardly.