baber/WOPTO huggingface dataset:
Patent GB-491557-A (GB)
Title: Improvements in or relating to sealed metal envelopes or containers for electrical devices and methods of making the same
IPC: C10L7/04
Filed: 1937-03-01
Abstract: 491,557. Sealing leading - in wires. MARCONI'S WIRELESS TELEGRAPH CO., Ltd. March 1, 1937, No. 6055. Convention date, Feb. 28, 1936. [Class 36] [Also in Group XL] In an electron-discharge device the leading-in wires are sealed in a glass disc 10, which is connected to the metal envelope 1 by a U -sectional metal ring 5; this may be of chrome iron or nickel iron copper plated. The side 6 of the ring may be thinner than the remainder ; a flange 9 is welded to the skirt 3 of the envelope or the flange may have a skirt to be welded to the straight-sided envelope. In manufacture, the ring 5 is set on the forming block 20, Fig. 4, of a press mould and two concentric glass rings 28, 29 are placed on stops inside the ring 5; the leading-in wires are strained through holes 22 in the block and 25 in the press 24, the glass being fused by bunsen flames on to the wires. After further heating with the glass raised above the block 20, the block and press are brought together to form the disc 10 and seal it to the ring 5, an exhausting tube being at the same time fused to the disc. The process may be carried out in a turret type machine. Specification 489,287 is referred to.
Patent GB-539000-A (GB)
Title: A process and apparatus for the uniform feeding of flexible material in indefinite lengths
IPC: D06B23/00
Filed: 1940-04-04
Abstract: 539,000 Finishing yarns. HEBERLEIN & CO. AKT.-GES. April 4, 1940, No. 6116. Convention date, April 27, 1939. Drawings to Specification. [Class 120 (iii)] [Also in Group XVI] Yams are fed from a treating apparatus by feed rollers driven by an electric motor having a flat torque-revolution characteristic so that the tension of the yarn remains constant in spite of shrinkage or other conditions tending to vary the tension. An electric motor having a high rotor leakage, obtained for example by increasing the depth of the winding grooves in'the rotor, may be suitably employed. The yam may be fed to the treating apparatus by a pair of rollers driven at constant speed or may pass directly to the treating apparatus from a braked supply roll.
Patent GB-417029-A (GB)
Title: Improvements relating to temperature regulation in pasteurising
IPC: A23L3/22
Filed: 1934-02-26
Abstract: 417,029. Pasteurizing apparatus. BERGEDORFER EISENWERK AKT.-GES. ASTRA-WERKE, Bergedorf, Hamburg, Germany. Feb. 26, 1934, No. 6240. Convention date, Feb. 25, 1933. [Class 49.] In a pasteurizer operating on the flash method and having thermostatic control of the heating medium the liquid is automatically recirculated if its outlet temperature falls below the prescribed minimum. In the illustrated embodiment milk from the tank 3 is driven by the pump 4 through the heater 1, heat-sensitive device 21, and valve 8 which diverts it either to the outlet 10 or the return line 22. Hot water from the tank 2 is circulated by the pump 5 through the heater 1. The heat-sensitive device 23 operates the valve 13 controlling the supply of steam to the tank 2. The device 21 actuates the change-over valve 15 which admits water from the pipe 14 to operate the two-way valve 8 so as to recirculate the milk when necessary.
Patent GB-576190-A (GB)
Title: Improvements in or relating to the manufacture of fluorinated derivatives of aliphatic hydrocarbons
IPC: C07C17/20
Filed: 1944-04-04
Abstract: Fluorinated derivatives of aliphatic hydrocarbons are prepared by reacting a halogenated derivative of an aliphatic hydrocarbon, containing in the molecule two or more carbon atoms and at least four atoms of halogen other than fluorine of which three are attached to one carbon atom, and containing no other substituents, with substantially anhydrous hydrogen fluoride in the absence of a catalyst and at elevated temperature and pressure.  In the examples, asym-tetrachloroethane, pentachloroethane and hexachloropropylene are separately heated with hydrogen fluoride in pressure vessels bearing a water cooled reflux condenser surmounted by a controllable pressure release valve.  The vessels are cooled, the pressure released and the contents distilled giving respectively, 1-fluoro-1,1,2,-tri-chloroethane; 1-fluoro-1,1,2,2-tetrachloroethane and in the last case fractions consisting of 1,1,1-trifluoro-2,3,3-trichloropropene-2, 1,1-difluoro-1,2, 3,3-tetrachloropropene-2; and 1-fluoro-1,1,2, 3,3-pentachloropropene-2.  Using other reactants, the reflux condenser may be cooled with refrigerated brine.  The gaseous products which are obtained are passed through absorbents and then condensed.  Specification 466,509 is referred to.
Patent GB-801082-A (GB)
Title: Improved stock inlet arrangement for paper or board making machines
IPC: D21F1/02
Filed: 1956-02-29
Abstract: 801,082. Supplying pulp to paper-making machines &c. WALMSLEYS (BURY), Ltd., and TEMPERLEY, J. Feb. 29, 1956, No. 6269/56. Class 96. The pulp supply to the flow-box of a paper- or board-making machine is through a conduit 19, Figs. 2 and 3, which receives pulp at each end 18 and converges towards the centre 19a where there is a baffle 22, the pulp flowing through slots 21 and conical passageways 24 to a diffusion chamber 25 and past a main flowspreader baffle 26 to the flow-box which may be of the open, or of the pressure-type, and may have three flow-evener rolls ahead of the slice. The baffle 26 is of the rotatable doubleorifice type and is used in conjunction with a flexible valve-plate 27, Fig. 3, at one or both sides and having local adjustment 28, 29 at spaced positions across the machine. Specification 672,278 is referred to.
Patent GB-727200-A (GB)
Title: Method and apparatus for bending glass sheets or plates
IPC: C03B23/027
Filed: 1953-03-07
Abstract: 727,200. Bending glass sheets. FOLKES, G. E., (Libbey-Owens-Ford Glass Co.). March 7, 1953, No. 6361/53. Class 56. In apparatus for bending glass sheets wherein the mould comprises a central section 18 and end sections 23 hinged thereto, at least one of the end sections is pivoted, at 33, on swinging supports 13, the arrangement of the suspension being such that the end sections are counterbalanced against the weight of the central section until the glass softens and sags, whereupon the counterbalance is upset and the mould closes. This minimises any tendency of the glass, while positioned as a strut across the end sections, to shatter due to the weight of the mould. Portions 36 of the end sections are movably mounted thereon. In one position these portions support the ends of the flat glass sheets; in the other, as shown, they align with the rest of the surface of the sections and complete the shaping surface of the mould.
Patent GB-1299651-A (GB)
Title: Fluorinated amido resin prepolymers and products
Inventor: OLSEN MAYNARD HENRY
IPC: B05D7/26
Filed: 1970-02-10
Abstract: 1299651 Skis MINNESOTA MINING & MFG CO 10 Feb 1970 6414/70 Heading A6D [Also in Divisions B2 and C3] The metallic running surfaces of skis are coated in four passes with a solution in methyl isobutyl ketone of a prepolymer obtained by condensing hexamethoxymethylmelamine with a fluorinated urethane (C 8 F 17 SO 2 N(C 2 H 5 )C 2 H 4  OCONH) 2 C 6 H 3 CH 3  (Example 23). In general the prepolymer may be one obtained by modifying an aminoplast resin with a compound containing at least one perfluoroalkyl group and at least one active hydrogen. (see Division C3).
Patent GB-491457-A (GB)
Title: Improvements relating to the heating of retorts
IPC: C10B21/22
Filed: 1937-03-04
Abstract: 491,457. Retort furnaces. WOODALLDUCKHAM (1920), Ltd. (Didier-Werke Akt.- Ges.) March 4, 1937, No. 6496. [Classes 51 (i) and 51 (ii)] In a retort heated by two or more side-byside straight vertical flues each having two or more burners 9, 10, 11 distributed along its length, gas and air are supplied to the burners from main ducts 1, 2 at one end of the flues through passages 3 ... 8, which are individual to the burners concerned, i.e. are separate from the passages supplying other burners either in the same or in an adjacent flue. The main ducts 1, 2 are preferably at the upper ends of the flues and the supply passages are in the partition walls between adjacent flues, these walls being reduced in thickness by steps as shown after each burner opening. The air and gas passages for the burners 11 may be enlarged as compared with the other passages, and separate control devices may be provided for the different passages.
Patent GB-115828-A (GB)
Title: Apparatus for Starting Motors and Engines of Great Inertia.
Inventor: MOLAS EDOUARD ELIE
IPC: F02N15/02
Filed: 1918-04-17
Abstract: 115,828. Molas, E. E. April 17, 1917, [Convention date]. Turning-gear.-A turbine connected by gearing and a clutch to the engine to be started is driven by gas or fluid under pressure, which also actuates means for putting the clutch into engagement. In one form, Figs. 2 and 4, the turbine a<1> is driven by fluid supplied through a conduit v<2> and is connected to a longitudinally movable shaft l, carrying a clutch m, by worm gearing c, d, f, g; the worm-wheel g is integral with a pinion h free on a sleeve i, which carries a pinion and is slidably engaged by a key k on the shaft l, and a pinion s gears with the pinions h, j. The clutch m is moved into engagement with the engine by a piston q actuated by fluid from a branch conduit v<3> and carrying a fork p engaging a collar o on the shaft l. When the engine has started, the leakage of the pressure fluid allows the spring r to return the piston q, assisting the automatic disengagement of the clutch m. The engine may be started by a crank-handle engaging a squared nut n on the shaft l, the gearing being put out of action by sliding the pinion s so that it gears only with the loose pinion h, and locking it in this position. In a modification, the turbine drives a flexible shaft terminating in a worm in gear with a worm-wheel, which has a free-wheel connexion with a hub keyed to the shaft to be started.
Patent GB-938610-A (GB)
Title: Improvements in or relating to kinematographic apparatus and mechanisms suitable foruse therein
Inventor: CRONIN SIDNEY VERNON
IPC: G03B19/18
Filed: 1959-02-25
Abstract: 938,610. Kinematograph apparatus. SPECTO Ltd. Feb. 17, 1960 [Feb. 25, 1959], No. 6563/59. Class 97 (1). [Also in Group XXIV] A clutch comprises a disc 20 fast on a driving shaft 2 and having a recess 19 engageable by spring-pressed pawl 9 pivoted at 11 to a driven disc 1. The tail of the pawl has a pin and slot connection 15, 14 with a lever 8 pivoted at 10 to the disc 1. Lever 8 and pawl 9 have detents 13, 16 engageable, according to the direction of rotation, with a stop 17 to disengage the pawl from the disc and thus disengage the clutch. A two-speed drive for a kinematograph projector operative in both directions, includes two such clutches; the first clutch has its driving shaft 2 rotated at a speed appropriate to the normal framing speed (16 frames per second) and the disc 1 is formed as a film drive pinion. The second clutch has a driving shaft 6 rotated at a suitable speed for slow framing and a driven disc 4 formed as a cam actuating a lever 3 formed with the stop member 17. A rocking lever 7 is provided with stops 23, 27 engageable with detents of the second clutch for disengaging it. In operation, for normal framing speed, and assuming shaft 6 to be rotating clockwise, lever 7 is rocked so that the stop 23 engages the detent of the second clutch pawl so that the second clutch is disengaged and cam 4 is stopped in a position in which a lobe of the cam cooperates with the lever 3 so that the stop 17 is removed from the path of the detents 13, 16 of the first clutch pawl. The first clutch is therefore engaged and the film drive pinion 1 rotates at the speed of the shaft 2. To stop the framing lever 7 is rocked to its other extreme position in which stop 27 lies in the path of the second clutch detent. At the same time the second clutch detent is freed from the stop 23, permitting the second clutch to engage and rotate the cam 4 through a part-revolution until the second clutch is disengaged by the stop 27. In this position a low part of the cam 4 rocks the lever to advance the stop 17 into the path of the first clutch detent 13 or 16, which then disengages the first clutch to stop the drive. Forslow framing (two frames per second) the lever 7 is moved to an intermediate position in which both stops 23, 27 are clear of the detents so that the second clutch is engaged. Once in every revolution of shaft 6 the lobe of cam 4 removes stop 17 from the path of the first clutch detent 13 or 16 and allows film drive pinion 1 to rotate far enough to change one frame. Different speeds of slow framing can be obtained by changing the cam 4.
Patent GB-698941-A (GB)
Title: A method of and apparatus for concentrating or separating components of a gas or liquid mixture or concentrating or separating isotopes
IPC: B01D17/00
Filed: 1949-03-10
Abstract: <PICT:0698941/III/1> <PICT:0698941/III/2> In a method of separating constituents of gases or liquids, particularly mixtures of isotopes, by thermal diffusion and convection between a hot surface and a cold surface, a permeable partition is placed between the surfaces, having apertures for the passage of the constituents of a diameter at least exceeding the mean free path of the molecules under the temperature and pressure conditions at the partition, thus preventing turbulence without hindering thermal diffusion.  The apparatus may be a flat box as shown in Fig. 3 where the upper surface h is heated and the lower one c is chilled.  Gas entering at the cold surface is split into two components one diffusing towards the cold surface c and leaving at the lower outlet a, the other towards the hot surface h and leaving at upper outlet a. One or more permeable partitions p for example, of metal gauze, permits diffusion and hinders turbulence.  Alternatively the appartus may be cylindrical, having a central hot wire or tube with concentric partitions and cold surface.  As shown in Fig. 4, the separators may be arranged as a battery, the hot component from the initial separator being fed to a second separator where the partition is arranged to form a larger chamber adiacent the hot surface than the cold, whilst the cold component is fed to a lower separator having a larger cold chamber.  The method and apparatus are applicable to separation wherein the substances on both sides of the partition are gaseous, or both liquid, or where the substance on the cold surface condenses and trickles down while that on the hotter side is vapour, in which case an upper collecting chamber communicating with the warm chamber of the separator may be provided, with a cooler for condensing the vapour.
Patent GB-286275-A (GB)
Title: Manufacture of yarn from artificial and natural silk fibre
IPC: D02G3/04
Filed: 1928-03-02
Abstract: 286,275. I. G. Farbenindustrie Akt.- Ges. March 2, 1927, [Convention date]. Yarns and threads; processes. - In the manufacture of yarn artificial silk in short lengths is mixed with Schappe silk of longer lengths and, after carding, the lap is passed through a breaking machine consisting of two pairs of rollers at a distance apart equal to or greater than the length of the artificial silk fibre the front rollers of which are run at a faster speed to break the natural silk fibres. The slivers so produced are then spun into yarn and woven into fabric which, when dyed, displays new cross dye effects owing to the fine intermingling of the fibres and to the fact that artificial silk and natural silk take colours differently.
Patent GB-214210-A (GB)
Title: A process for the manufacture of dry, well preserved rubber from latex
IPC: C08J3/215
Filed: 1924-03-14
Abstract: 214,210. Cohen, E. S. Ali-. April 12, 1923, [Convention date]. Latex, coagulating.-A colloidal suspension of carbon in a. fatty acid soap dispersing agent is added to rubber latex which is then coagulated to produce an intimate mixture of rubber and carbon. A suspension of lamp-black in soap is heated to about 50 C., diluted latex is added gradually with stirring, and the temperature is raised to 70 C. to evaporate volatile anticoagulants, and the latex is coagulated, e.g. by alum, and the coagulant is washed and sheeted. Mineral or vegetable oils or fats may be added to the soap. The Specification as open to inspection under Sect. 91 (3) (a) comprises also the use of saponin &c. as a dispersing agent for the carbon, and the drying of the latex instead of coagulating. This subject-matter does nut appear in the Specification as accepted.
Patent GB-249508-A (GB)
Title: Improvements in and relating to windows for doors of motor-cars and for other purposes
IPC: E05F11/38
Filed: 1926-03-10
Abstract: 249,508. Haarnagell, G. March 21, 1925, [Convention date]. Holders for sliding windows.- Window frames of the kind described in Specification 249,116, [Class 20 (iii), Doors &c.], are applied to a vertically-sliding vehicle window sash combined with a fixed upper sash and the rack and gripper holding means are actuated by pivoted spring- pressed handles 22, 23 connected respectively by links 19 and adjustable collars 18 thereon to the grippers 13 at the sides. The sashes are balanced by helical springs housed in tubes 29 on the frame and connected to the sash by brackets 30, 31 in recesses of which the grippers 13 are pivoted. Specification 194,433 also is referred to.
Patent GB-195368-A (GB)
IPC: F16D3/66
Filed: 1923-03-08
Abstract: 195,368. English Electric Co., Ltd., (Assignees of Constructions Electriques de France). March 27, 1922, [Construction date]. Universal joints permitting relative movement between a motor aid a wheel axle. A hollow motor-shaft 2, carried by the vehicle frame, surrounds the axle 3 and is formed with a flange 5 having four bosses 6 - - 9. Similar bosses 10 - - 13 are formed on the wheel 14. Spindles 20, 21 each independently pivoted on pins 16 carried by a floating ring 15, slide in cups in the bosses, and compression springs 22 threaded on the spindles transmit the driving force from thebosses 6 - - 9 to the ring 15 and from the ring to the wheel 14 through the bosses 10 - - 13. Sufficient space is provided between the axle 3 and the hollow shaft 2 to permit of the maximum relative movements of the parts due to the flexureof the vehicle springs.
Patent GB-416351-A (GB)
Title: Knitted fabric and methods of knitting fabric by circular knitting machines
IPC: D04B1/00
Filed: 1933-03-06
Abstract: 416,351. Knitting. BENTLEY, P. A., GODDARD, J. H., DEANS, F. E., MANGER, C. F., and WAINWRIGHT, C. H., Komet Works, New Bridge Street, Leicester. March 6, 1933, No. 6767. [Class 74 (ii).] The formation of holes in fabric knitted upon a multifeeder circular machine when an additional feeder is brought into action, or a feeder is taken out of action, is prevented by interlinking a length of the yarn supplied by that feeder with the loops knitted at another feeder. To obtain the necessary length of yarn 22-24, 28-30, the yarn trapper and cutter are arranged at the requisite distance from the point at which the needles take their yarn, or the action of the trapper and cutter is delayed until the needles have taken the necessary length of yarn. The length of yarn may be positioned by a brush for knitting with the yarn supplied by the other feeder at the cams corresponding to that feeder. Specifications 15008/00, [Class 74], 24290/12 and 171,483, [both in Class 74 (ii)], are referred to in the Provisional Specification.
Patent GB-1083041-A (GB)
Title: Improvements in methods of and means for manufacturing felts
IPC: D04H1/732
Filed: 1965-02-17
Abstract: 1,083,041. Laminates and laminating. B. RUDLOFF. Feb. 17, 1965 [Feb. 29, 1964], No. 6770/65. Heading B5N. Layers of fibrous materials 12, 12<SP>1</SP>, containing powdered adhesive and formed on foraminated rollers 7, 7<SP>1</SP> by suction from a fan 11, are fed between rollers 10 and 10<SP>1</SP> on to a foraminated belt and thence led by belts 15, 16 to a chamber 17 and heated by hot air, supplied by nozzles 18, to melt or polymerize the adhesive. The fibres are formed by standard weighing- carding apparatus 1, 1<SP>1</SP>, powdered adhesive is supplied at 2, 2<SP>1</SP>, and rollers 4, 4<SP>1</SP> and carding rollers 5, 5<SP>1</SP> supply them under suction within cowls 6, 61 to the rollers 7, 7<SP>1</SP>. Suction in part of the rollers is blocked off by shields 19, 19<SP>1</SP>. Apparatus 13 supplies additional materials such as asbestos, slag or sawdust,. with or without powdered adhesive, for thermal or acoustic insulation. Alternatively a centre layer of textile, glass or metal fabric or parallel threads may be supplied. The fibres may be of cotton, wool, jute &c. and the two layers may be of the same or different materials and thicknesses.
Patent GB-493549-A (GB)
Title: Improvements in foot rests for use in motor vehicles
IPC: G05G1/60
Filed: 1937-03-08
Abstract: 493,549. Foot-rests for use in vehicles. PIM, J. March 8, 1937, No. 6844. [Class 52 (ii)] A foot-rest for drivers of motor vehicles comprises a block of resilient material such as rubber, sponge-rubber or rubberized hair material, having a front portion 2 on which the heel of the driver's shoe rests, and an adjacent rear platform portion 1 extending transversely to accommodate the counter or heel-embracing portion of the shoe. Means such as a flap 4 with turnbuckles or press studs are provided for securing the rest, preferably in alternative positions. The riser portion 3 of the block is preferably inclined downwardly towards the pedals, and the rear part 18 may also be downwardly inclined. The underside of the block may have a strengthening layer of rough or patterned rubber sheet, carpet, canvas, plywood &c., and also with' gripping means such as spikes. The block may have a fixed or detachable covering of fabric, felt, leather &c., and part of the covering may form the flap 4. Alternative shapes are shown in Figs. 4 and 5 ; in these forms the flap 4 constitutes the front portion on which the heel rests.
Patent GB-949827-A (GB)
Title: Static inverter
IPC: H02M7/525
Filed: 1960-02-26
Abstract: 949,827. Inverting. BORG-WARNER CORPORATION. Feb. 26, 1960 [March 6, 1959], No. 6892/60. Heading H2F. [Also in Divisions G3 and H3] An inverter circuit to provide a three-phase output comprises three pairs of semi-conductor controlled rectifiers 13, 14; 15, 16; 17, 18; fired sequentially by a magnetic shift register 12 to which signal pulses are applied from a pulse generator 11 (see Division H3). The output from an element, say 23, of the shift register is applied to the base 43b of a transistor 43 and hence to the gate electrode of a semiconductor controlled rectifier 42 causing this to conduct through one half of a primary winding 14 of a three-phase output transformer. The drop in voltage at the anode 42a is applied through a commutating capacitor 51 to the anode of the partner rectifier 48 and stops the conduction of this rectifier. The two rectifiers of a pair are thus alternately conducting and non-conducting. The pulse timing and sequence of firing is such as to provide three output windings with voltages at phase difference intervals of 120 degrees. Outputs are derived at A, B, C from secondary windings 82, 83, 84 of the output transformer. To effect voltage control, the outputs of tertiary windings 85, 86, 87 are fed to a bridge rectifier G whose output is applied to a circuit containing Zener diodes 111, 112, 113 which provide a reference voltage. The differential voltage so obtained is amplified by transistors 101, 102, 103 and applied to the control windings of saturable reactors 89, 90, 91 whose A.C. windings 98, 99 and 100 are disposed across the output secondary windings together with capacitors 92, 93, 94 and effect the power factor to provide a constant voltage output under varying load conditions. Specification 875,940 is referred to.