baber/WOPTO huggingface dataset:
Patent GB-389875-A (GB)
Title: Improvements relating to weft-stop motions for looms for weaving
IPC: D03D51/34
Filed: 1931-09-30
Abstract: 389,875. Weft stop-motion for shuttleless looms. BRITISH CELANESE, Ltd., 22, Hanover Square, London, and POOL, W., c/o British Celanese, Spondon, near Derby. Sept. 30, 1931, No. 27232. [Class 142 (i).] In looms wherein weft is laid in the form of lengths cut from a stationary supply and wherein means, such as that described in Specification 360,818, are provided for seizing the end of weft extending from the warp, a feeler member is provided to engage the weft end after it has been seized and to effect stoppage on incorrect laying of the weft or the absence thereof. The feeler or weftengaging member 25, Figs. 2 and 7, is pivotally supported on the upper end of a lever that is fixedly mounted, adjacent to a loosely mounted two-armed lever 19, on a rock shaft 18, the lower arm of the lever 19 being extended to engage a cam 20. On weft failure a hook 26, Fig. 7, on the feeler is engaged by a blade 27 on the oscillating lever 19 and the normally stationary supporting lever is moved to rock the shaft 18 whereupon a third lever 30 on the rock shaft brings about stoppage of the loom. The lever 30 may be mounted to act directly on the starting handle or its movement may be utilized to raise a catch 35, Fig. 2, into the path of a projection on the receding lay and effect stoppage by means of a hammer lever 37. The feeler mechanism may be mounted at both sides of the loom. Specification 346,850 is also referred to.
Patent GB-707176-A (GB)
Title: Improvements in or relating to apparatus for forming cavities in the wall of a socket of a pin-type glass insulator
IPC: C03B23/00
Filed: 1951-11-20
Abstract: 707,176. Glass manufacture. PILKINGTON' BROS., Ltd., and WILCOCK, J.E. Oct. 3, 1952 [Nov. 20, 1951], No. 27251/51. Class 56 Apparatus for forming cavities in the wall of the sockets 12 of a pin-type insulator 3 whereby cement in the socket and surrounding the pin interlocks the pin with the insulator is characterized by a pair of tong members 9 the lower ends of which are formed with swellings 10 on the outside to produce the cavities, an axially displaceable abutment 18 normally located between the upper ends of the tong members to force the lower ends together, a rod 19 carrying the abutment and axially displaceable within a guide 20, and springs 16 biasing the upper ends of the tongs to separate the lower ends and operative on displacement of the abutment 18 into the recess 24 in the tongs, the amount of separation being limited by adjustable stops 25. The form shown is for manual operation; a second form is described wherein the tongs are automatically operated from a power-driven mechanism.
Patent GB-779742-A (GB)
Title: Crystallisation of salt
Inventor: BARBER EDWARD ALAN
IPC: C01D3/26
Filed: 1954-09-21
Abstract: Common salt of low bulk density is prepared by evaporation in the absence of air and preferably under reduced pressure, of brine, previously substantially freed from calcium and magnesium salts, to which has been added a small proportion of an alkylene di-amino tetra acetic acid or a substitution product, salt or ester of such an acid, or a metal complex of any one of them. Ethylene diamine tetra acetic acid is preferred and the amount added may be from 0.00005 to 2 per cent by weight of the brine. The preliminary process of purification of the brine may be adjusted to leave from 5 to 2000 parts per million of calcium or magnesium which will be chelated by the alkylene di-amino tetra acetic acid, or alternatively a small percentage of unpurified brine treated with the agent may be added to purified brine For example unpurified brine is treated with 10 to 15 per cent by weight of ethylene diamine tetra acetic acid in solution and purified brine is then treated with 0.5 per cent by weight of the so treated unpurified brine.  The mixed brine is then evaporated under reduced pressure at 214 DEG F. and the crystals are left in the boiling zone until they reach 0.3 to 0.5 mm. size.  The bulk density of such a product is 0.65 grammes per c.c.
Patent GB-878310-A (GB)
Title: Improvements in or relating to pneumatic tyres for road vehicles
IPC: B60C5/12
Filed: 1959-08-11
Abstract: 878,310. Pneumatic tyres. CONTINENTAL GUMMI-WERKE A.G. Aug. 11, 1959 [Aug. 23, 1958], No. 27364/59. Class 144 (2). To obviate sudden failure under lateral stresses 5, a pneumatic tyre 1, comprising a flexible side-walled carcase of radial cords 7 and rigid tread reinforcing band 3, encloses an auxiliary carcase 2 which is formed of crosslaid plies 10 of parallel cords having a cord angle in the range 23 to 38 degrees and anchored to bead cores 11, the carcase 2 being spaced radially inwardly from the inner periphery of the tyre 1 and being separately inflated to a pressure higher than that of the tyre 1. As shown, the tyre 1 has its edges 8, 9 formed without bead cores to provide a seating for the beads of the carcase 2, the edges 8, 9 terminating in thickened portions 14.
Patent GB-1359034-A (GB)
Title: Window wiper in particular for a vehicle windscreen
IPC: B60S1/34
Filed: 1971-06-11
Abstract: 1359034 Vehicle windscreen wipers AUTOMOBILES PEUGEOT and REGIE NATIONALE DES USINES RENAULT 11 June 1971 [16 June 1970 30 Nov 1970 13 May 1971] 27392/71 Heading A4F A vehicle window wiper device includes an arm 3 pivotable about an axis X-X, a blade mounted on the arm to pivot about a second axis substantially perpendicular to the surface to be wiped, and link means 20 urged by a spring 16 into rolling engagement with a journal 21 defining a third axis Y-Y offset from the first axis X-X and pivotably connected to the blade in the vicinity of the second axis. The inner end of the link means carries one or two rollers 22 resiliently urged against the eccentric journal 21. An electric motor drives the wiper arm through a rack and toothed sector gear.
Patent GB-299987-A (GB)
Title: Improvements in and relating to bagatelle or the like boards or tables
IPC: A63D13/00
Filed: 1927-10-15
Abstract: 299,987. Burroughes & Watts, Ltd., and Trotman, C. T. P. Oct. 15, 1927. Table games.-A board or table of the bagatelle type is provided with a weighted trap door which is pivoted intermediate of its length to allow a ball (or disc) to fall through, and with an under-support for that portion of the trap door which is adapted to rise above the table, the under-support preventing sagging. The trap door c, a number of which are arranged preferably in the manner shown in Fig. 1, is pivoted on a pin d, Fig. 4, and is weighted at the end f remote from the baulk so as to return to the horizontal position against a leather or rubber stop i<1> after the passage of a ball g. A forwardly-projecting part of the pivot support limits the tilting of the trap door, and inclined shoots beneath the table lead the balls to the top end i of the table. To prevent direct access of the balls to the trap doors, pillars, bunkers or arched uprights k, Fig. 6, with depending flaps k<1> may be fixed, or movably located, on the playing surface. Peg holes m for scoring purpose may be provided along the cushion rails. Specification 3870/99 is referred to.
Patent GB-754688-A (GB)
Title: Improvements in periscopes
IPC: G02B23/08
Filed: 1954-09-22
Abstract: 754,688. Periscopes. POST, J. Sept. 22, 1954 [Nov. 23, 1953], No. 27419/54. Class 97 (1). A hand periscope comprises two shells 10, 11 telescopically slidable one into the other, each having an opening 18, 19 for the passage of light and an inclined mirror arranged opposite each of the said openings, the upper mirror 14 being set at an angle of 56¢ degrees to a plane normal to the longitudinal axis of the shells and the lower mirror 15 at an angle of 56“ degrees to the said plane. The shells may be rectangular and'the mirrors inserted therein through slots in the sides. A releasable catch may be provided to hold the shells in opened or closed position.
Patent GB-224920-A (GB)
IPC: F02B19/10
Filed: 1924-11-17
Abstract: 224,920. Steffens, H. F., (Assignee of Thermokrat-Akt.-Ges., and Ernst, W. E.). Nov. 16, 1923, [Convention date]. Cylinders, construction of.-An auxiliary combustion space 1 has a projecting member 4 which during compressoin forms a pocket 6 for the burnt gas, a surface 5, behind the igniter 2, acting as a refector for the explosion waves. The size of the pocket 6 and the height of the surface 5 may be adjustable and a choke tube 10 may separate the auxiliary and the main combustion chambers. The pocket may be formed by an inlet pipe 16, Fig. 4, for air or mixture, the head of the valve 17 then acting as the reflecting surface. Ignition may take place in a branch passage of the space 1, or the pocket may be formed as a branch passage the end of the space 1 then acting as the reflector. The Specification as open to inspection under Sect. 91 (3) (a) comprises also a modification in which the pocket may be formed by a sieve of palladium or nickel stretched across the space 1. This subject-matter does not appear in the Specification as accepted.
Patent GB-304263-A (GB)
Title: The manufacture of benzanthraquinone derivatives and substitution products
Filed: 1927-10-18
Abstract: 304,263. Carpmael, A., (I. G. Farbenindustrie Ak.-Ges.). oct. 18, 1927. 1 : : 2-Benzanthraquinone - 3 : Bz4 - dicarboxylic acid, anhydride, imides, and imidozoles are prepared by acid condensation of 1 :8-naphthalicanhydride-4-benzoyl-o-carboxylic acid and its derivatives, especially by means of sulphuric acid with or without boric acid, at about 160‹-200‹ C. In examples, 1 : 2-benzanthraquinone-3 : Bz4- dicarboxylic anhydride, imide, N-methylimide, -N-arylimides, and 5 : 8-dichor-1 : 2-benzanthraquinone-3 : Bz4-dicarboxylic anhydride are prepared from the corresponding 1: 8-naphthalic anhydride-4-benzoyl-o-carboxylic acid derivatives, and 8 : 4-(or 5: 6)-phthaloyl-peri-naphthoylene benzimidazole from peri-naphthoylenebenzimidiazole 4-(or 5)-benzoyl-o-carboxylic acid, in each case by condensation with sulphuric acid at about 160‹-170‹ C. The imidazole is an orange vat dyestuff. The acid is obtained from the anhydride by means of alkali followed by acid. 1 : 8 - Naphthalic anhydride-4-benzoyl-o-carboxylic acids are prepared by oxidation of 5-acenaphthoylbenzene-o-carboxylic acids. Bv the action of ammonia, methylamine, acylamines, or o-phenyldiamine, 1 : 8-naphthalic anhydride-4- oenzoyl-o-carboxylic acid yields the corresponding imides and imidazole. 5-Acenaphthoyl-3<1> : 6<1>-dichlorbenzene-o - carboxylic acid is obtained from acenaphthene and 3: 6-dichlorphthalic anhydride by means of aluminium chloride in carbon bisulphide.
Patent GB-277818-A (GB)
Abstract: 277,818. Robinson, G. B. Oct. 11, 1926. Shoots.-In a coal &c. shoot A flexible dependent retarding aprons B are attached to fixed cross-bars C and supported by transverse bars E which can be raised and lowered to regulate the resistance which each apron offers. The bars E are secured to side members F, which are connected to the shoot by parallel pivoted arms G. The shaft K of the upper arms G carries a weighted lever H. When the inclination of the shoot is increased, the members F are moved towards the shoot, and the resistance of the aprons is increased. In a modification each bar E, Fig. 4, is adjustable in slots M in the uprights D which carry the. bar C. The aprons are preferably built, up of alternate layers of indiarubber and canvas vulcanized together.
Patent GB-660812-A (GB)
Title: Improvements in or relating to hand-operated knitting apparatus
IPC: D04B39/00
Filed: 1948-10-26
Abstract: 660,812. Knitting-apparatus. GROSZMANN, J. Oct. 26, 1948, No. 27798/48. Class 74 (ii). Hand-operated knitting-apparatus is provided with a row of latch needles 5 between which hooks 3 are projected and withdrawn to hold a yarn so that it extends above the needle latches and is engaged by the needle hooks when the needles are lowered to draw the yarn through the loops of the previous course. The hooks 3 are operated by mechanism similar to that described in Specification 515,081 and a notched bar 26 is provided to engage beneath the loops of the previous course on the needles and to assist in casting these loops off the needle. The needles 5 are mounted in a guide bar 12 and held by a front bar 10 which is operated to raise and lower the needles by levers 24 operating through rods and levers 20, 18.
Patent GB-953550-A (GB)
Title: Materials for the treatment of solid particles, and their use
Inventor: FOUCAULT PIERRE ALEXANDRE
IPC: B03D1/004
Filed: 1960-08-11
Abstract: A material for use in the surface treatment of solid particles comprises a cationic surface-active agent dispersed in an oily vehicle consisting of a mixture of aromatic hydrocarbons which has substantially the composition of the fraction of dephenolated coal tars of which the boiling point range extends from that of naphthalene to that of anthracene, inclusive of both.  The surface-active agent may be a monoamine or polyamine which possesses attached to its nitrogen atom or to one of its terminal nitrogen atoms, a C8-22 hydrocarbon group.  Particularly useful amines have the general formula R-[NH-(CH2)n]m-NH2 or are the condensation products of compounds of said formula with ethylene oxide or propylene oxide, where n is 2 or 3, m is 2-8, and R is a saturated or unsaturated, straight or branched-chain acyclic C8-22 hydrocarbon group.  An analysis of a suitable oily vehicle is given in the Specification.  The material is used to coat particles, e.g. to facilitate the flotation, flocculation, hydroextraction, filtration and briquetting of coal fines and sludges.
Patent GB-797553-A (GB)
Title: Thermal wattage controller
Inventor: VOGELSBERG WALTER HERBERT
IPC: H01H37/52
Filed: 1955-10-03
Abstract: 797,553. Thermal switches. PROCTOR ELECTRIC CO. Oct. 3, 1955, No. 28053/55. Class 38 (5). A cyclic regulator comprises a composite thermomotive member including a bimetal element and a heater secured together, the thermomotive member being pivotally mounted, and a rigid member engaging the thermomotive member near its mounting so that manual adjustment of the rigid member adjusts the thermomotive member about its mounting. The thermomotive member comprises a bimetal element 12 and heater 13 secured together at their upper ends and insulated from each other over the rest of their lengths. The heater has a bent-over extension 22 secured to an arm 23 of a terminal 24 so as to provide the pivotal mounting. The rigid member 25 has a tongue riveted between the heater 13 and element 12 near the mounting and extends alongside the thermomotive member. A screw 28 in the casing engages a threaded hole 27 in the member 25 to provide a zero adjustment. A contact 3 carried by the free end of the bimetal 12 cooperates with a contact 4 on a spring arm 5 which is mounted on a terminal 6 and is acted on by an adjusting cam 8 through a spring 7, which is bimetallic to provide ambient temperature compensation. A resistance 31 is connected in shunt across the heater 13 by being connected at its upper end to the member 25 and at its lower end to the terminal arm 23. The lower connection is factory adjustable to compensate for manufacturing variations. The cam 8 also controls a main switch and a switch controlling a pilot lamp (not shown). U.S.A. Specifications 2,623,137 and 2,673,444 are referred to.
Patent GB-927304-A (GB)
Title: A self-propelled water scooter
IPC: B63B35/73
Filed: 1961-08-02
Abstract: 927,304. Water scooters. J. POLLET. Aug. 2, 1961 [Aug. 3, 1960], No. 28072/61. Classes 113 and 114. A motor scooter chassis 5 is fitted with water skis 6, 7, and with floats 17, 18 to preserve buoyancy and stability at low speeds. The relative disposition of the skis and floats may be such that as the skis rise out of the water the floats also leave the water, or as shown, the floats may be raised, against the action of springs 28, either manually or by pneumatic jacks 25. The forward ski 6 which has a short keel (see Fig. 1, not shown), turns with the handlebars 15 for steering purposes, and its incidence is varied either automatically, by a spring, or manually by tilting of the handlebars acting via the bar 14 or a Bowden cable. The engine casing 2 and propeller transmission housing 8 may pivot about an axis 29 to clear underwater obstructions. The engine may also drive a compressor to charge an air reservoir 24, from which air is taken to operate the jacks 25, and to inflate the floats, where these are inflatable. A flap 27 may be fitted to operate the jacks 25 when the skis sink into the water. In a modification, only one ski is fitted, and a rudder is then provided.
Patent GB-233998-A (GB)
Title: Wrenches
IPC: B25B13/14
Filed: 1924-11-24
Abstract: 233,998. McDaniel, C. W. Nov. 24, 1924. Sliding-jaw wrenches; internal-grip wrenches; jaw faces.-A wrench is provided with a fixed jaw 12 and a worm-adjusted sliding jaw 23, both jaws having faces such as 18 for engaging over a nut and faces such as 20 for engaging the angular hole in a socket. An alternative form of sliding jaw is shown in Fig. 3 with stepped serrations 25 for engaging a pipe. When the jaws are in adjusted position, they may be locked by the head 30, Fig. 8, of a screw 28 frictionally engaging the worm. Wrench handles and shanks.-The shank end has a tapered shoulder 32 fitting into the handle 33 and retained in position by a spring 35 fixed on the handle engaging the shoulder of the shank. When the handle is removed the shank may be engaged in the chuck jaws of an ordinary bitbrace for rapid movement.
Patent GB-1146485-A (GB)
Title: Detaching tool for coal-winning machines
IPC: E21C27/44
Filed: 1966-06-23
Abstract: 1,146,485. Mineral-mining cutter bits. GEWERKSCHAFT EISENHUTTE WESTFALIA. 23 June, 1966 [24 June, 1965 (2)], No. 28170/66. Heading E1F. A mineral-detaching tool comprises a blade or chisel-carrying body 1 that is slid along a guide surface of a holder 2 up against an abutment on the holder to be pinned to the holder by a pin 11 passing through the then aligned bores in the body and the holder, which bores are disposed transversely of the guide surface that extends in the direction of the main force occurring on the tool when it is in use. Other embodiments to the one shown are also described.
Patent GB-1473050-A (GB)
Title: Blends of napthenic oils and hydrogenated olefine oligomers
IPC: C10N40/04
Filed: 1975-07-04
Abstract: 1473050 Blend of naphthenic oil and hydrogenated olefin oligomer EXXON RESEARCH & ENG CO 4 July 1975 [17 July 1974] 28240/75 Heading C5E A blend suitable for use as an hydraulic fluid comprises 1-20 wt. per cent of a naphthenic oil substantially free from aromatic hydrocarbons and having a flash point greater than 100 C. and 80-99 wt. per cent of a paraffinic base-oil having a flash point above 100 C. and a viscosity within the range 2-30 c.St at 37-8 C. which has been prepared by oligomerizing one or more C 3 -C 4  olefins in the liquid phase at - 10 to 80 C. with a Friedel-Crafts catalyst and hydrogenating the oligomer after separating the catalyst. The catalyst may be 0À5-0À8 wt. per cent BF 3  and 0À04-0À08 wt. per cent water.
Patent GB-445039-A (GB)
Title: Improvements in air cooling of internal combustion engines
IPC: F02F1/34
Filed: 1934-10-03
Abstract: 445,039. Two - - part couplings. ROWLEDGE, A. J., Ellerslie, Trowels Lane, Mickleover, Derby. Oct. 3, 1934, No. 28340. [Class 38 (i)] [See also Group XXVII] In a sleeve-valve internal-combustion engine cooling air is deflected into the cylinder head by a detachable cover g<2> for the sparking plugs which depends from a plate g and includes an electric coupling for each plug. This coupling comprising spring-pressed plungers h<2>, g<8> mounted in insulating sleeves h<1>, g<3> and a metal pin g<5>. Webs j extend from the two sides of the cover g<2> to form a baffle for the cooling air.
Patent GB-686871-A (GB)
Title: Improvements in or relating to time pieces
IPC: G04B31/008
Filed: 1950-11-20
Abstract: 686,871. Clocks and watches. RIBOT, G. M. T. Nov. 20, 1950 [Nov. 18, 1949]. No. 28351/50. Class 139. [Also in Group XXXIV]. A timepiece of the type wherein the balance staff carrying the hair spring and the balance wheel is provided at its ends with jewels adapted to revolubly engage stationary pivots carried respectively by the plate and the balance cock is characterized in that the stationary pivots are of conical configuration and assume a cylindrical shape at their apices to engage the jewels of said balance staff and that said pivots are carried snugly by the plate and the balance cock respectively '  in corresponding conical recesses thereof. The balance staff 19, Fig. 2, carries the jewels 21a, 21b and the endstones 22a, 22b which receive the pivots 27a, 27b carried respectively by the plate 2 and the balance cock 3 and urged against the endstones by plate springs 28a, 28b.
Patent GB-677816-A (GB)
Title: A process for the manufacture of methacrylic acid esters from acetone cyanhydrin
IPC: C07C69/54
Filed: 1949-11-07
Abstract: Methacrylic esters are prepared by reacting acetone cyanhydrin with pyroboric acid or boric oxide to form the borate which is treated with concentrated acid and then with water to yield methacrylamide, and esterifying the latter.  Conversion to the borate is preferably effected at not more than 50 DEG  C.  The boric acid or oxide may be added gradually to the cyanhydrin or the latter added to a slurry of the former in, for example, benzene, toluene or xylene which can afterwards by removed under vacuum. The borate, after adding about 1 per cent copper powder, may be treated with sulphuric acid of 90 per cent or more, preferably 96 per cent, or oleum with less than 20 per cent SO3.  1.2-1.6 moles acid per mole cyanhydrin is suitable. Phosphoric acid of above 90 per cent or non-aqueous solutions of HCl could be used. A stoichiometric amount of water may be added to the product which is continuously passed through a heat exchanger to bring the temperature to a maximum of 180 DEG  C. preferably 120-160 DEG  C., for 1-5 minutes, and then cooled to 30-100 DEG , preferably 60 DEG  C.  The methacrylamide produced may be esterified by adding 1.2-1.7 moles. per mole. of initial cyanhydrin of a lower aliphatic alcohol, e.g. methanol, at 60 DEG  C., adding 1/3 -\ba1/2 mole. of water, and then 2/3 -1 mole. per mole. initial cyanhydrin while heating up to 130-135 DEG  C. with distillation, and subsequently steam distilling.  The distillate is chilled to 10-20 DEG  C., the ester layer separated and chilled to -5 to -20 DEG  C. after washing with water, the ice crystals separated, and the ester distilled to give a forerun and pure product.  The separated ice, forerun, and an ester layer from distillation of the water washings are processed with the next batch.  Hydroquinone is added prior to esterification, to the distillate receiver, and about 0.06 per cent is maintained in the ester during purification.ALSO:Pyroboric acid is prepared by heating boric acid suspended in xylol until 5 mols. water for each 4 mols. of boric acid are removed by entrainment in the xylol. Remaining xylol is then removed under vacuum.  Other entrainers, e.g. benzene or toluene, may be used.