baber/WOPTO huggingface dataset:
Patent GB-177321-A (GB)
Title: Improvements relating to intermittent driving-mechanism for feeding continuous stripmaterial
IPC: B65B41/18
Filed: 1921-01-28
Abstract: 177,321. Forgrove Machinery Co., Ltd., and Grover, F. Jan. 28, 1921. Variable-speed ratchet gearing.-In web-feed mechanism for wrapping-machines &c., of the kind in which a friction ratchet-gear such as a notched pawl 3 engaging an annular flange 1<x> on a wheel 1 geared to the feed rollers 10 is employed, the effective stroke of the pawl 3 is automatically controlled by a pivoted stop 21 operated pneumatically and controlled by perforations 11<x> in the web. The perforations 11<x> pass over an aperture 13 in a casing 14 closed by a diaphragm 15 connected to the stop 21 by a rod 16, arms 17, 19, and link 20. A pivoted hollow arm 12 registering with the aperture 13 is connected to a vacuum pump 23 operated by a cam 26 on the shaft 7 which, through crank 6, links 5, and arm 4<x> operates the pawl 3. If the web is fed correctly, a perforation 11<x> registers with the aperture 13 at the end of each feed movement and the vacuum which is set up in the casing 14 moves the stop 21 into the position shown in dotted lines and limits the idle stroke of the pawl 3, but if a perforation 11<x> is not in register with the aperture, the stop remains in the position shown in full lines so that the pawl receives a longer idle stroke. The vacuum in the casing 14 is destroyed during each feed movement by leakage of air into the casing through a narrow valve-controlled passage.
Patent GB-1425354-A (GB)
Title: Indole derivatives
IPC: C07D401/06
Filed: 1974-01-25
Abstract: The compounds of the formula I <IMAGE> in which the substituents R<1>, R<2>, R<3>, R<4> and X are defined in Claim 1, are prepared by reaction of an appropriately substituted indole derivative with an isocyanate or isothiocyanate containing the substituent R<4>. The compounds of the formula I can be converted into their corresponding acid addition salts or quaternary ammonium salts. If R<4> denotes acyl, the possibility also exists of hydrolysing compounds of the formula I to the corresponding amino compound. The said compounds have a hypotensive and antihypertensive activity and can be used as medicaments for the treatment of hypertension or alternatively as intermediates for the preparation of compounds having hypotensive activity.
Patent GB-179266-A (GB)
Title: Improvements in or in connection with the fore-sights of rifles, revolvers and like small-arms
IPC: F41G1/04
Filed: 1921-01-29
Abstract: 179,266. Pearson, R. Jan. 29, 1921. Sights.-Relates to foresights of the kind comprising a shading-tube containing a sighting- member formed with a square, triangular or like sighting-aperture. According to the invention (1) the sighting-aperture, which is square or triangular, is formed by means of narrow metal bars A, B, Fig. 1, fitted within the shading-tube or formed integral with a ring a<1>, Fig. 2, fitted within the tube, (2) the sighting-member consists of a thin metal ring a<1>, Fig. 3, provided with an inwardly projecting limb a<2> having an enlarged end formed with a square or triangular aperture a. The sighting-member may be fitted in an auxiliary tube D, Fig. 5, adapted to be inserted into the ordinary shading-tube C and to be secured by a screw F.
Patent GB-685893-A (GB)
Title: Pre-cast concrete slab construction
IPC: E03F5/02
Filed: 1951-02-14
Abstract: 685,893. Concrete slabs. OVERHULSE, M. W. Feb. 14, 1951 [Feb. 25, 1950], No. 3594/51. Class 87(i) [Also in Group XXIX] A concrete slab 16 for making tank walls is provided with an expanded metal or wire mesh reinforcement 17 which extends at 19 beyond the lower edge of the slab and with strips 21 of reinforcement projecting from one face adjacent the vertical edges which are of toothed formation 26, 27. Adjacent each strip 21 is a row of clips 22 to support shuttering for the formation of cement joints in which the strips 21 are embedded.
Patent GB-1113580-A (GB)
Title: Separation of crystals from solutions,by evaporation of solvent
IPC: B01D1/26
Filed: 1967-01-24
Abstract: 1,113,580. Separation of crystals from solution by flash and multiple-effect evaporation. CHICAGO BRIDGE & IRON CO. 24 Jan., 1967 [25 Jan., 1966], No. 3613/67. Heading BIB. An aqueous solution of two crystallizable compounds, e.g. caustic soda and sodium chloride, is concentrated so that one of the compounds crystallizes out, by conducting the solution through line 10, regenerative heaters 12, 14, 16, 18, and preheater 22 into the vertical tubes of falling-film evaporator 30, the hot liquor is then conducted through line 38 to flash zones 40, 42, 44, where flash vaporization and cooling occurs accompanied by formation of sodium chloride crystal nuclei. The nucleated liquor is passed through line 52 into the second effect 54 of a multiple-effect evaporator system 58, 54, 56, a slurry of salt crystals in liquor is withdrawn from effect 54 through line 66, and passed to tank 70, where the crystals are separated. The liquor is conducted through line 76 into the third-effect evaporator 56 where further sodium chloride crystallizes, the slurry being collected in tank 84, where the crystals are separated. The motherliquor is conducted through line 88 to firsteffect evaporator 58 which is heated by the vapours evolved from the solution in filmevaporator 30. The concentrated solution. withdrawn from effect 58, is passed through line 102 into flash evaporator 103 where the residual sodium chloride crystallizes out. These crystals are separated in tank 118, and a solution of caustic soda is withdrawn through line 124. The condensate withdrawn from the heat-exchanger 91 of effect 58 through line 99, is passed through heaters 18 . . . 12. The condensate withdrawn from the heat-exchanver 63 of effect 54 is passed via line 106 into the heat-exchanger 133 of effect 56. Other solutions which may be treated are caustic soda containing sodium sulphate and sodium carbonate. and brines containing sodium chloride, calcium chloride, and magnesium salts.
Patent GB-903351-A (GB)
Title: Electric machines having jacket cooling and internal air circulation
IPC: H02K9/16
Filed: 1961-02-01
Abstract: 903,351. Cooling dynamo-electric machines. MEZ BRNO, NARODNI PODNIK VYVOJORY ZAVOD. Feb. 1, 1961 [Feb. 3, 1960], No. 3743/61. Class 35. The cooling jacket surrounding the stator of an electrical machine has duets 2 through which a fan blows hot air originating in the machine and tubes 3 and ducts 4 through which cooling air is circulated. The ribs 5 of the jacket in contact with the stator packet provide an additional cooling surface.
Patent GB-1360907-A (GB)
Title: Tubular heat exchangers
IPC: B60H1/00
Filed: 1972-01-26
Abstract: 1360907 Tubular heat exchangers SOC ANON DES USINES CHAUSSON 26 Jan 1972 [28 Jan 1971] 3757/72 Heading F4S A flow distributing device in a heat exchanger tube (e.g. a tube of rectangular cross-section in a vehicle radiator) comprises a metal strip 1 extending longitudinally of the tube and having lugs 4, 4a punched out from the strip material, each lug having a flange portion 6 at its free end adapted to bear on the tube wall, and also having therein an aperture 5. The lugs are sprung into position in the tube (see Fig. 6) bonding being unnecessary. The edges of the strip may provide flanges 12 as shown, also in contact with the tube wall. Additional flow disturbing means comprising slots 9, 10 and 11  may be formed in the strip 1 as shown. A number of the devices may be disposed one behind the other in a tube the lug spacing, and hence the heat transfer rate, decreasing in successive devices. In an arrangement comprising a plurality of the tubes, Fig. 8, corrugated fin elements 13 are provided externally of the tubes and define with sheet members 14, 15, 16 passages for coolant air flowing transversely over the tubes. The sheet 14 between adjacent tubes may be of metal or of a plastics material.
Patent GB-760571-A (GB)
Title: Improvements relating to aircraft
IPC: B64C39/00
Filed: 1952-02-13
Abstract: 760,571. Aircraft. ECKINGTON, F. J. May 13, 1953 [Feb. 13, 1952], No. 3760/52. Class 4. An aircraft comprises an outer body part 19 connected to a central cruciform part having arms 20, 21 radiating from a hub 4 about which two circular contra-rotating rotors 1 and 2, each having a number of blades 3, rotate in bearings 6, 7 in hub 4 and bearings 17, 18 in part 19. The parts 4 and 19 may carry crew, passengers, freight, &c. An annular wing 22A is secured to the upper part of part 19 and it is provided with apertures 23 and shutters 24 whereby the vertical airflow may be controlled. Forward propulsion is achieved by jet or rocket motors P and these may be controlled differentially for directional control of the aircraft. Each blade 3 is made in three pivotally interconnected sections and each rotor is provided with blades driven by gas from jet nozzles. Stabilizing means are described comprising a forwardly directed funnel shaped member having an outlet positioned at the leading edge of a chordally divided elevator.
Patent GB-396124-A (GB)
Title: A resilient stuffing material or thick wad or bat with method and means for production
IPC: D04H1/00
Filed: 1932-02-09
Abstract: 396,124. Wadding &c. SHAW, J. W., Barrington, Broadway, Bramhall Lane, Stockport. Feb. 9, 1932, No. 3781. [Class 142 (iv).] A resilient stuffing material, wadding or bat used for gears and fillings for cushions and upholstery comprises a thin continuous fleece w of cotton, waste, jute or kapok, &c., which after cleaning in carding engines &c. is sprayed on one side by nozzles h with a light coating or film s of a binding surfacing or adhesive solution such as starch or animal size and is folded down in cross-laid widths on the lattice k of a cross folder. Rollers m may lightly press on the double layers which are knit together. A waterproofing or mildew-resisting surfacing solution may be used. The product may be treated at the top and bottom with thick size or have tissue paper applied thereto and may be cut into strips. Various methods of treating the fleece before application of the surfacing solution are described. Specification 314,190, [Class 142 (iv), Woven fabrics &c.], is referred to.
Patent GB-100268-A (GB)
Title: Improvements in or relating to Explosion Engines Coupled to Dynamo-electric Machines.
IPC: F02P1/00
Filed: 1916-03-14
Abstract: 100,268. Soc. Anon. des Etablisse ments L. BlÚriot. April 10, 1915, [Convention date]. Addition to 11566/15. Dynamos, driving; magnetos, driving.-In driving a dynamo and a magneto from an explosion engine as described in the parent Specification, the dynamo e is interposed between the engine and the magneto and is provided at each end with gearing c<1>, f<1>, which, together with the dynamo, forms a detachable unit. The gearing ensures the running of the magneto at the same speed as the engine, and the dynamo at a higher speed. The dynamo is connected to the engine and the magneto through couplings g, h.
Patent GB-1412418-A (GB)
Title: Drinking cups
IPC: B65D1/26
Filed: 1972-01-27
Abstract: 1412418 Shelf forming MONO CONTAINERS Ltd 23 Jan 1973 [27 Jan 1972] 3878/72 Heading B5A [Also in Division A4] A method of forming a peripheral bead at the mouth of a drinking cup, comprises firstly forming the cup to have an inwardly and upwardly extending portion 13, a radially outwardly extending top portion 14, and an outwardly and downwardly extending skirt 15, and subsequently pressing the top portion 14 towards the rest of the cup to partially flatten the inwardly and upwardly extending portion 13. During the pressing operation the lower part of the portion 13 moves outwardly and the upper part of the portion 13 moves inwardly. The cup may be supported by a generally horizontal shelf 12 on a locating ring (17), Fig. 2 (not shown), and pressed into a pressing die (18). An array of cups may be vacuum-formed from a large sheet of material 16. Punching dies 21, 22 severe the cups from the sheet material 16 at 20.
Patent GB-214372-A (GB)
Title: Improvements in or relating to advertising or display devices
IPC: G09F3/12
Filed: 1923-02-09
Abstract: 214,372. Wardle, E., Jones. B. R., Tunnicliffe, H. E., Hayes, H., (trading as Wardle & Jones), and French, J. J. Feb. 9, 1923. Signs, supporting and securing.-In advertising or display cards having attached thereto a securing pin or the equivalent the point of which protrudes beyond the edge of the card for insertion in a support, the pin C lies in a slot or groove B in a flat piece of stiff material A, the closed end of the slot forming an abutment for the pin head. The piece A may be attached to the display card or form the card itself. The slot B may have an enlarged end, and the pin may be secured by gum &c. or by a strip of adhesive material D.
Patent GB-285015-A (GB)
Title: Improvements in or relating to apparatus for the destructive distillation of powdered fuel
IPC: C10B47/22
Filed: 1928-02-08
Abstract: 285,015. Trocknungs-, Verschwelungs-, und Vergasungs-Ges. Feb. -8, 1927, [Convention date]. Coking and carbonizing processes.-Powdered bituminous material is carbonized by being sprayed upwardly into an externally heated chamber, the coke and distillates being withdrawn at the top of the chamber. Powdered bituminous material such as coal is supplied from a reservoir through a pipe 24 to an injector 31 having an adjustable nozzle which projects the material into a chamber 1 heated by surface combustion in chamotte bodies 3 in a jacket 2. The coke powder and distillates pass through a cooling jacket 7<1> to a centrifugal coke separator 8 and a centrifugal oil separator 36. The purified gas passes through a tubular heat exchanger 40 to a pipe 35 leading to the injector. The heat exchanger 40 is heated by the hot gases leaving the jacket 2 through a discharge pipe 5. In a modification, the powdered material is sprayed into the chamber by a centrifugal distributor 6 supplied with powdered fuel by a worm 17 and comprising rings 21 mounted on a rotating tube, the fuel entering the set of rings through an annular gap 19<1> between a disc 19 and a tube 18 through which the fuel passes.
Patent GB-1402358-A (GB)
Title: Cleaning pad for cleaning louvred panels
IPC: A47L4/02
Filed: 1973-01-26
Abstract: 1402358 Cleaning pads R NOWAK 9 Jan 1974 [26 Jan 1973] 3982/73 Heading A4F A cleaning pad for cleaning louvred panels comprises a body 11, e.g. of resilient polyurethane foam, having transverse parallel upstanding formations 15 providing in cross-section a sawtooth like profile. A cleaning cloth 13 may be removably mounted on the pad to cover the contoured surface, and to be anchored in slits 18 and between the body 11 and a channel-shaped holder 12.
Patent GB-545032-A (GB)
Title: Improvements in or relating to pivots for cutting tools
IPC: B23D33/00
Filed: 1941-03-25
Abstract: 545,032. Pivots for scissors &c. NORTHERN PATENTS DEVELOPMENTS, Ltd., and BARTLETT, B. G. W. March 25, 1941, No. 4011. [Class 65 (ii)] A pivot for scissors &c. has a hemispherical head a in a recess b in one blade c and a tapered shank d in a bore f in the other blade g. The shank may be square or round, or may be screw-threaded to engage a tapped bore in g. The head may have a nick for a screwdriver, or a nut for a spanner.
Patent GB-771441-A (GB)
Title: A new or improved method of, and plant for, preparing metal articles or work pieces for galvanizing
IPC: C23C2/02
Filed: 1954-02-15
Abstract: 771,441. Galvanizing metals. CRISPIN, J. Feb. 15, 1954 [Feb. 13, 1953] No. 4044/53. Class 82(2) Metal articles are prepared for galvanizing by pickling in acid, draining, immersing the articles n an acd-neutralzer, water and liquid flux in succession, and heating the work-pieces after removal from the flux and before immersion in the galvanizing bath. The neutralizer, water and flux are contained in grouped tanks arranged together with an oven, a conveyer being provided for the group. The conveyer 8 carries the articles on hooks 11 and immerses them successively in the neutralizing tank 1 and water tank 3, the conveyer thus reflexing on a path parallel to the former one and immersing the articles in flux and conveying them through an oven.
Patent GB-515610-A (GB)
Title: Improved loose book-cover
IPC: B42F11/02
Filed: 1939-02-08
Abstract: 515,610. Binders or covers for periodicals &c. DENTON, W. P. Feb. 8, 1939, No. 4119. [Class 146 (i)] A loose book cover or pamphlet binder is constructed with a double back, the book or pamphlets being clamped to the inner back b, which is of flexible material secured to the outer back g along its longitudinal edges h only, by metal strips f engaging the ends and a metal bar c fixed to the inner back b. The inner back b may extend the full length of the covers a or may comprise strips of material. The book or pamphlets are secured by one or more strips f supported by U-shaped members c secured to the inner cover. Strip f may engage slots or clips in the turned up ends e of member c or may be hinged at one end or may be secured by screws.
Patent GB-252232-A (GB)
Title: Power transmission and coupling device
IPC: F16D31/06
Filed: 1925-02-13
Abstract: 252,232. Knecht, J. J. Feb. 13, 1925. Fluid - pressure transmission systems. - A variable speed transmission device, shown diagrammatically in Fig. 1, in which the transmitting medium is a liquid or doughy or granular material comprises a rigid blade b fixed to the driven or driving member guided in an enclosed chamber filled with the transmitting medium, the area of the blade being equal to the cross section of the chamber and influenced by two sets of slides c<1>, e<2>, f<1>, f<2> projecting a variable, distance into the chamber, the blades e<1>, e<2> being carried by the fixed and the others f<1>, f<2> by the driving or driven portion of the apparatus. The chamber is divided by a movable partition g at right angles to the blade b provided with holes l<1>, l<2> on either side of the blade through which the transmitting medium is forced by the blades f<1>, f<2> to act on the blade b. Inclined members m<1>, m<2>, n<1>, n<2> form bridges to guide the slides e<1>, e<2>, f<1>, f<2> past the blade b. The speed ratio is varied by varying the position of the partition g, and thus varying the effective areas of the slides e<1>, e<2>, f<1>, f<2>. Fig. 9 shows a variable speed gear mounted in a bicycle hub, in which a is the driving part attached to the sprocket wheel e; b the fixed part attached to a stationary shaft d, and c the, driven part forming the hub and carried by walls l, m mounted to rotate on ball bearings o, n about the fixed shaft d. These three parts a, b, c, together with a body part p mounted on ball bearings 3 on a sleeve 4 mounted to slide on the shaft d, form an enclosed annular chamber divided into two parts by a disc r mounted on the body part p. Slides s', s<2>, t<1>, t<2> acted on by springs 1, 2, carried by the driving and fixed parts respectively, bear against the disc r. A plate attached to the hub engages a slot in the disc r, and holes are provided on each side of the slot having spring bridge pieces to guide the slides. The speed ratio is varied by altering the position of the disc r by the axial movement of the sleeve 4 by means of a cotter : 5, chain 6, and spring 7. Elastic membranes 10, 11 are provided to allow for expansion of the driving fluid.
Patent GB-830310-A (GB)
Title: Improved coating compositions
IPC: C09D7/47
Filed: 1958-02-07
Abstract: Improvement in flow out, prevention of floating, flooding and silking and defoaming of coating compositions is effected by adding thereto from 0.01 to 5.0% by weight of monopropylsiloxane per se or in solution form.  Coating compositions based on natural resins, e.g. copal, damar, elemi, kaurie and rosin, and natural proteins, e.g. casein, soybean protein and zein, hardened e.g. with formaldehyde, are specified.  Lists of modifying drying oils, plasticizers, pigments, fillers and stabilizers are also given.ALSO:Improvement in flow out, prevention of floating, flooding and silking and defoaming of coating compositions are effected by adding thereto from 0.01 to 5.0% by weight of monopropylsiloxane per se or in the form of a solution.  In examples, monopropylsiloxane is added to (1) a commercial nitrocellulose furniture lacquer; (2) a lacquer comprising a xylene solution of a coconut oil alkyd and an ethanol solution of nitrocellulose; (3) each of (a) an acrylic resin, and (b) a pigmented methacrylate resin; (4) vinyl acetate; and (5) a pigmented alkyd-type enamel. Lists of other coating resins, cellulose derivatives, plasticizers, pigments, fillers, stabilizers and modifying drying oils are given.
Patent GB-774734-A (GB)
Title: A speed-limiting device especially for actuators
Inventor: CHARY HENRY HEINZ
IPC: H02K7/102
Filed: 1955-02-11
Abstract: 774,734. Centrifugal governors. PLESSEY CO., Ltd. Feb. 13, 1956 [Feb. 11, 1955], No. 4190/55. Class 57. [Also in Group XXXIV] A speed-limiting device for a rotating shaft 12 comprises centrifugal balls 19 arranged in radial guide passages 18 and adapted to displace an element 20 against spring action into engagement with a stationary surface 23. The shaft 12 may be the armature shaft of the compoundwound motor for a linear actuator. The element 20 consists of a spring steel disc divided by four radial cuts into flexible quadrants 21 provided with friction pads 22 to engage the surface 23 which forms part of a shield adjustably screwthreaded on to an extension of the motor casing. A spring-loaded, solenoid-actuated brake disc 14 is also provided.
Patent GB-197410-A (GB)
Title: Improvements relating to alternating-current dynamo-electric machines
IPC: H02K3/28
Filed: 1922-02-13
Abstract: 197,410. Miller, L., Field, A. B., and Metropolitan-Vickers Electrical Co., Ltd. Feb. 13. 1922. Windings.- The windings of each phase in alternating-current machines for ship propulsion or other purposes are divided into section, the conductors of one section being in different slots from those of another section of the same phase, each slot containing the sides of two coils and the conductors of each section being similarly located with reference to the magnetic field so that the terminal voltages generated in all sections of a given phase winding always have substantially a common value. A fault on one section is therebv limited to that section and the machine may continue running on the other section of the phase. Fig. 2 shows one phase winding of a four-pole machine having six slots per pole. The winding consists of two sections T1' Y1, shown in heavy lines, and T2, Y2, shown in light lines, the full and dotted lines respectively representing the top and bottom conductors in the slots 1 - - 24. The two sections are normally paralleled by joining T1, T2 and Y1, Y2 and the winding entails two forms of coil. Fig. 3 shows the three complete phase windings of a four-pole machine having six slots per pole and all coils chorded to a four-slot pitch. The windings are shown displaced vertically and each phase comprises two sections shown by heavy and light lines. Thus, phase A consists of two sections T<1A> Y<1A>, T<2A> Y<2A> paralleled at the terminals T<A>, Y<A>. Each slot contains the sides of two coils which are not in the same section of a phase winding and the coils of a section of any one phase are always in a slot with those of a corresponding section of another phase. Thus, a fault on a coil, say, in the thick-lined section of phase A in slot 9 can only affect the thick-lined coil of phase B in the same slot. The method of winding may also be applied to concentrically wound coils, and in place of being in parallel, the sections may be connected in series as shown in Fig. 5 which shows a connected generator G and motor M, each having two sections in series per phase. If a fault develop in the motor at E, the corresponding outer sections in all phases may be cut out and the machines may run at reduced power, as shown in Fig. 6. Alternatively, only the faulty outer section E and the corresponding generator section may be cut out, the ends of the inner sections of the affected phase windings and the star-points of the two machines being ccnnected, thus enabling the machines to run with a symmetric loading.