baber/WOPTO huggingface dataset:
Patent GB-845597-A (GB)
Title: Improvements in apparatus for forwarding running lengths of filamentary material
Inventor: SAUM ARTHUR MCLEAN
IPC: B65H51/14
Filed: 1957-09-09
Abstract: 845,597. Forwarding textile yarns, tows &c. DU PONT DE NEMOURS & CO., E. I. Sept. 9, 1957, No. 28448/57. Classes 120(2) and 120(3). Apparatus for forwarding running lengths of yarn or tow or like filamentary material comprises two narrow  endless belts arranged to travel over paths which converge, are lightly contiguous over a finite length, and then diverge, with means for driving the belts at substantially the same speed, the material remaining in contact with one only of the belts over the diverging section. The arrangement may be horizontal, inclined or vertical: in a vertical arrangement, Fig. 1, the belts pass over rollers 3, 4 and 5, 6 respectively, the rollers 3, 5 being of equal and relatively large diameters, and one, 3, being driven, the other belt being driven by contact or by the rollers 3, 5 being geared together. The rollers 3, 5 are geared apart, and idlers 7, 9, 8, 10 are placed to provide a nip between points 11 and 12 after which the second belt is caused to move away from the first over a roller 6. One or more liquid applicators, a spiral guide 15, and a traverse-guide 16 may be provided, the latter being traversed in two directions to deposit the material in a stationary can 17.
Patent GB-756371-A (GB)
Title: Improvements in and relating to the production of polymeric materials
Inventor: SEMMENS PETER W
IPC: C08G79/02
Filed: 1953-10-16
Abstract: A process for the production of elastic polymeric materials comprises reacting an aqueous solution of a compound containing two isothiouronium groups and which is other than a dyestuff with a solubilized potassium polyphosphate prepared by one of the following methods: (1) powdered potassium polyphosphate is added to water and contacted with the ammonium or sodium salt of a cation exchange resin (e.g. an ammonium or sodium salt of a sulphonated polystyrene or of a sulphonated phenolic resin), the potassium polyphosphate going into solution as ammonium potassium or sodium potassium polyphosphate respectively; (2) powdered potassium polyphosphate is contacted with a solution of a sodium salt (e.g. sodium chloride) and the swollen product separated and dissolved in water to give a viscous solution of sodium potassium polyphosphate; (3) potassium polyphosphate is added to previously neutralized hydrogen peroxide.  The solubilized polyphosphate solution, at a concentration equivalent to 0.1 per cent by weight of KPO3, should preferably have a viscosity greater than fifteen times that of water.  The isothiouronium compound may have one or more of the hydrogen atoms attached to the nitrogen atoms replaced by alkyl, aryl or aralkyl groups.  Specified isothiouronium compounds are ethylene bis-(isothiouronium bromide), 1:3-propylene bis-(isothiouronium bromide), 1:3-butylene bis-(isothiouronium bromide) and 1:4-butylene bis-(isothiouronium bromide).ALSO:A process for the production of elastic polymeric materials comprises reacting an aqueous solution of a compound containing two isothiouronium groups and which is other than a dyestuff with a solubilized potassium polyphosphate prepared by one of the following methods: (1) powdered potassium polyphosphate is added to water and contacted with the ammonium or sodium salt of a cation exchange resin (e.g. an ammonium or sodium salt of a sulphonated polystyrene or of a sulphonated phenolic resin), the potassium polyphosphate going into solution as ammonium potassium or sodium potassium polyphosphate respectively; (2) powdered potassium polyphosphate is contacted with a solution of a sodium salt (e.g. sodium chloride) and the swollen product separated and dissolved in water to give a viscous solution of sodium potassium polyphosphate; (3) potassium polyphosphate is added to previously neutralized hydrogen peroxide.  The solubilized polyphosphate solution, at a concentration equivalent to 0.1 per cent by weight of KPO3, should preferably have a viscosity greater than fifteen times that of water.  The isothiouronium compound may have one or more of the hydrogen atoms attached to the nitrogen atoms replaced by alkyl, aryl or aralkyl groups.  Specified isothiouronium compounds are ethylene bis-(isothiouronium bromide), 1 : 3-propylene bis-(isothiouronium bromide), 1 : 3-butylene bis-(isothiouronium bromide) and 1 : 4-butylene bis-(isothiouronium bromide).
Patent GB-1262323-A (GB)
Title: Structures for surfacing sports areas
IPC: E04F15/22
Filed: 1969-06-06
Abstract: 1,262,323. Surfaces for sports ground. BADISCHE ANILIN-& SODA-FABRIK A.G. 6 June, 1969 [7 June, 1968], No. 28656/69. Addition to 1,261,624. Heading A6D. [Also in Division B5] A covering for playing fields consists of two layers, each of thickness 3-10 mm. and having on one side only parallel ribs, of height 1-5mm. and cross-sectional area 2-25 mm<SP>2</SP>, and spaced at 5-20mm., arranged with ribbed faces in contact with the ribs of one layer at 45‹-90‹ to the ribs of the other; each layer comprises a mixture of 100 parts by wt. bitumen, 50-120 parts by ethylene polymer and optionally up to 100 parts by wt. filler, which mixture has a mean elongation of 400-800% and a modulus of elasticity of 60-100 kg./cm<SP>2</SP>. The ribs may be of semicircular, square, hemielliptical part-circular, part-elliptical, rectangular or swallowtailed section. Each layer may have a different composition and thickness, e.g. the upper layer may contain a filler while the lower layer contains no filler. The ethylene polymer may be copoly (ethylene/n-butyl acrylate). The layers may be moulded at 200-280‹C or extruded at 100-160‹C and bonded by adhesive or by fusion.
Patent GB-287543-A (GB)
Abstract: 287,543. Siemens & Halske Akt.- Ges. March 24, 1927, [Convention date]. Addition to 282,089. Factory and like time recorders, card type; driving type-wheels from clock. -In a timerecorder as described in the parent Specification an arrangement is provided whereby the actuation of the sets of type wheels can be separately controlled by means of an independently operated control means. In the form shown, Figs. 1 to 3, The type wheel sets 2 - - 4, which are loosely mounted on a shaft 1, are actuated by stepped pawls 7 - - 9 co-operating with notched ratchet discs on the type wheels, the pawls being pivoted to an oscillating member 5 operated by a cam 11 on a spindle 10 controlled by clockwork mechanism. The engagement of the pawl levers 7 - - 9 with their ratchet discs is regulated by means of a set of notched control discs 14 - - 16 upon which bear extensions 24 - - 26 of the pawl levers 8, 7, and 9 respectively. The control discs 14 - 16 are integral with a ratchet wheel 13 actuated by a pawl 18 on a double-armed lever 17 operated by an electromagnet 20 the circuit of which is controlled periodically by clock operated contacts. The engagement of one or other of the extensions with the notch of the corresponding control disc renders the appropriate pawl lever effective to actuate the one or other set of type wheels.
Patent GB-431018-A (GB)
Title: Improvements in electric motors
IPC: H02K17/04
Filed: 1934-10-08
Abstract: 431,018. Alternating-current induction motors. HOWELL ELECTRIC MOTORS CO., Howell, Michigan, U.S.A. Oct. 8, 1934, No. 28766. Convention date, Nov. 4, 1933. [Class 35] A split-phase induction motor has two main stator windings 5, 8 connectable in series or in parallel for operation at the different voltages and a starting winding 11 in series with a condenser 13 which receives the same voltage for both operations, the starting circuit being disconnected, for example by a centrifugal or electromagnetic switch 12, when the motor attains a predetermined speed. The condenser which may be of the type described in Specification 421,628, [Group XXXVI], is housed within the motor casing as described in Specification 421,595. The motor may be arranged for rotation in both directions. The two parts of the main winding may excite different poles or they may be wound together in the same slots to prevent unbalanced effects on the rotor.
Patent GB-731783-A (GB)
Title: Dyed textile materials
IPC: D06P1/52
Filed: 1953-10-19
Abstract: The resistance to gas-fading of dyed textile materials exhibiting a tendency to gas-fading, e.g. cellulose organic acid ester and linear polyester textiles, is improved by depositing on the dyed material a polymer of a dialkylamino-alkyl ester of acrylic acid or of an alpha-substituted acrylic acid such as methacrylic acid.  The polymer may be applied to the textile as an aqueous solution of a water-soluble salt, e.g. an acetate, or as an aqueous emulsion, or as a solution in an organic solvent. The treated textile is finally heated, e.g. to at least 100 DEG  C., to insolubilize the polymer. Specified polymers are those of dimethylaminoethyl- and diethylaminoethyl-methacrylate and of dimethylaminoethyl-, diethylaminoethyl- and dimethylaminomethyl-acrylate.  Examples are given of the treatment of cellulose acetate fabric dyed with 1 : 4-di-(methylamino)-anthraquinone.
Patent GB-606137-A (GB)
Title: Improvements in or relating to bullet brushes
IPC: B08B9/04
Filed: 1945-10-31
Abstract: 606,137. Bullet brushes; j fixing bristles. KLEEN-E-ZE BRUSH CO., Ltd., DURY, H. J., and LEWIS, S. Oct. 31, 1945, No. 28907. [Class 19] [Also in Group XXVIII] A bullet brush comprises bristles held between wires twisted together to form a core, the said core extending beyond the bristles at each end, at both ends an annular hard leather washer 3 having a central aperture is arranged on the core and at the rear end a soft leather cupping washer 4 and a metal washer 5 are provided. The parts are secured by eyelets 6 one at each end of the core and these form an effective basis for final soldering. The wires twisted together to form the core are preferably of oval cross-section. The washers 3 may be dispensed with.
Patent GB-1014505-A (GB)
Title: An electronic voltmeter
IPC: G01R19/22
Filed: 1963-07-22
Abstract: 1,014,505. Voltage measurement. HEWLETT-PACKARD CO. July 22,1963 [Aug. 20,1962], No. 28973/63. Heading G1U. [Also in Division H3] In a voltmeter designed to give an accurate R.M.S. measurement of an A.C. input, the input is applied to the heater 13 of one thermocouple 9, whose output is applied to a chopper amplifier 23 and a meter 27. The output from the amplifier is also applied to the heater 15 of a second thermocouple 11 whose output is in series with that of the first thermocouple 9 and a resistor 37 in the input to the amplifier 23. The feedback circuit to the second thermocouple includes a differentiating circuit 31, 33 connected so as to apply a signal related to the rate of change of signal applied to the heater of the second thermocouple to the resistor 37. The chopper amplifier 23 may include pairs of switching elements such as photoconductors 39, 41 and 49, 51 which show high and low resistance alternately and operate as a modulator and demodulator respectively. The circuit indicates therequired R.M.S. value on the meter 27 with a high degree of accuracy and stability, and the meter behaves linearly.
Patent GB-1026164-A (GB)
Title: Improvements in or relating to mountings for semi-conductor devices
Inventor: DUNSTER DAVE FRANCIS THOMAS
IPC: H01L23/495
Filed: 1962-07-27
Abstract: 1,026,164. Semi-conductor devices. STANDARD TELEPHONES & CABLES Ltd. July 26, 1963 [July 27, 1962], No. 28975/62. Heading H1K. A semi-conductor device comprises at least two elongated metal members bonded to and separated by a glass or ceramic bead, and a semi-conductor element including at least two zones, one of which is bonded to one of the elongated members and the other connected by a wire bridging the bead to another of the elongated members. In an embodiment, Fig. 2, flat ribbons, or wires with flattened end 1, 2, are embedded in the bead 3. PN diode 4 is mounted as shown with a flying lead connecting one zone to wire 1. In an alternative arrangement the flying lead is connected to wire 1 through a similar PN diode to give a back-to-back arrangement. In a further assembly (Fig. 5, not shown) a transistor is similarly mounted, with its third zone connected by a flying lead to a further embedded wire. Suitable wire materials are iron-nickel-cobalt alloys, aluminium, gold, nickel, silver, platinum and palladium. After the application of a thin coating of silicone resin an encapsulation consisting of ceramic, glass, or a variety of resins with heat conductive fillers such as aluminium and marble, may be moulded or extruded around the assembly. When a ceramic bead is used its faces are metallized and the elongated members butt-jointed to the faces.
Patent GB-799158-A (GB)
Title: Improvements in and relating to glass faces consisting of framed units each comprising one or more layers of glass
IPC: E04D3/08
Filed: 1956-09-21
Abstract: 799,158. Roofs etc.; building units. RASMUSSEN, V. B. KK., [trading as RASMUSSEN & CO., V. K.]. Sept. 21, 1956 [Sept. 22, ,1955], No. 28992/56. Classes 20(4) and 87(1) A glass face for a roof, wall or partition consists of framed units each comprising at least one layer of glass or synthetic plastic material, and the frames of the units are secured to each other and to a supporting structure 8 with an allowance for relative movement between the individual frames. As shown, the units are formed of frames 6 of aluminium or extruded synthetic plastic provided with beads 7, and two layers 5 of glass, and are connected together by resilient, channel-section members 9, 10, the member 10 being secured to the structure 8 by screws 11; between the frames is a resilient distance piece 12. The lower end of an upper unit is provided with a channelshaped drip-bead 13, Fig. 5, into which is inserted, an edge of a securing member 9', the latter having an aperture 15, so that, via holes 14 in the frames the space between the layers of glass is vented to atmosphere to prevent condensation.
Patent GB-1422432-A (GB)
Title: Rock drill feed mechanism
IPC: E21B19/086
Filed: 1973-02-01
Abstract: 1422432 Rock drill feed GARDNER-DENVER CO 1 Feb 1973 [12 June 1972] 29017/75 Divided out of 1422431 Heading B3C In a rock drill feed system, a feed motor 146 is controlled by a pilot valve 92 which controls the direction of flow and pressure of fluid transmitted to a fluid-pressure operated main valve 10 having pressure regulating means, see Specification 1,422,431.
Patent GB-777595-A (GB)
Title: Improvements in or relating to lawn mowers
IPC: A01D34/03
Filed: 1954-10-08
Abstract: 777,595. Lawn mowers ; mowing machines. WALLIS, G. L. Oct. 10, 1955 [Oct. 8, 1954], No. 29068/54. Classes 6(2) and 6(3). . An attachment for a lawn mower comprises a reciprocating cutter mounted so as to project from one side of the mower and capable of being  swung through 180 degrees in a horizontal plane so as to project from the other side, the drive to the cutter being derived from the roller of the mower. The cutter, comprising a stationary blade and a reciprocating blade 7a and 7 respectively, is mounted on a platform 6 integral with a tubular member 5 and an arm 4, the arm 4 being pivotally supported on a pin 2 extending through a hollow boss 3 and carried by a suspension frame 1 which is fixed to the mower frame. The tubular member 5 houses a shaft 9 rotated by means of a ball 11 fitted at its inner end and held in contact with the roller 12 of the mower, the rotary motion of the shaft 9 actuating a swash plate 13 to cause the reciprocation of the cutter blade 7a. The mounting of the cutter may be swung through 180 degrees about the pin 2 and is held in either of its extreme positions by means of a spring-loaded plunger. Further, the mounting is such that the attachment is swingable in a vertical plane, to compensate for uneven ground. The outer end of the cutter frame may be fitted with a small ground wheel.
Patent GB-738075-A (GB)
Title: A gas discharge fluorescent tube supply circuit
IPC: H05B41/46
Filed: 1951-12-12
Abstract: 738,075. Signs. LOEWE OPTA AKT.-GESDec. 12, 1951 [Dec. 14, 1950; Feb. 9, 1951; March 21, 1951], No. 29093/51. Class 3 (2). [Also in Groups XXXV and XL (a)] A lighting or advertising display gas discharge tube containing fluorescent material excited by the radiation of the positive column discharge to emit visible light is connected either to a battery or to a mains or battery supply in series with a resistance which preferably is variable and of value such as to limit the tube power consumption to one watt or less. Fig. 1 shows the tube 1 having a carrier plate 2 to which advertising letters or signs are applied; the plate may have a layer of phosphors, and the inside wall of the tube behind the carrier plate may also have a layer of phosphors, e.g. calcium-wolframite, which emits light having an ultra-violet component and by which additional excitement of the phosphor layer on the carrier plate is obtained. The tube may have highly activated electrodes and is supplied from batteries 6 housed in a base 5 which also carries the resistance knob 7 and an on-off switch 8. Fig. 2 shows a circuit wherein the tube L is normally supplied from an A.C. mains through switch contacts S1, S2 and a contact K of a relay R, but on disconnection of the mains plug N or during mains failure the relay is de-energized and a battery B then supplies the tube.
Patent GB-774715-A (GB)
Title: Improvements in or relating to stamp dispensing machines
Inventor: ZEIGLE KENNETH CAREW
IPC: B65C11/00
Filed: 1954-10-08
Abstract: 774,715. Stamp-issuing machines. ELECTRIC VENDORS, Inc. Oct. 8, 1954, No. 29129/54. Class 106 (3). A stamp-dispensing machine comprises a holder 24, Fig. 2, for a roll of stamps, a stamp feed roll 25, a combined feed roll drive and feed roll locking member 49, Fig. 3, disposed in driving and locking relation with the feed roll and normally locking the feed roll against rotation, and a mechanism for operating the member 49 to cause it to drive the feed roll to dispense a stamp or stamps. The drive and locking member 49 has a pair of opposed dogs 51, 52 engaging the teeth of a star-shaped gear 26 drivingly connected to the feed roll 25 so that on operation of the member 49, the dog 52 partly rotates the gear and the feed roll and on return of the member 49 from its operated position by a spring 47, the dog 51 completes the issuing movement of the gear and feed roll and its face 51a locks against the next tooth 30. The feed roll 25, Fig. 4, has rows of teeth 29 suitably placed to engage the stamp perforations and two peripheral grooves 27, 28 in which lie strippers 35, 36 having upturned ends, e.g. 36a, which guide the issued stamp out of the machine The stamps are guided round the feed roll 25 by a stamp guide 40 having recesses 42 to accommodate the teeth 29, the guide 40 being pivotally mounted on the feed roll support and spring urged into constant spaced relation therewith by means of the spring 47 and a spacer disc 65. The member 49 is operated by a lever 48 controlled by a solenoid 55 supplied with current through contacts 56, 57 operated by a relay 58 which is impulsed by an external telephone type dial in accordance with the number of stamps required. A spring lever 45 in the guide 40 is located over the groove 27 but is normally prevented from entering the groove by the presence of a stamp 24. In the absence of a stamp the spring 45 falls into the groove and releases a micro-switch 44 cutting off the current supply to the machine. A plurality of these issuing units may be mounted side by side in a common casing the electrical circuits to the external dials being carried by plug and socket connections 9, 59.
Patent GB-338657-A (GB)
Title: Improvements relating to shedding mechanism for looms for weaving
IPC: D03C5/02
Filed: 1929-09-26
Abstract: 338,657. Whalley, I. Sept. 26, 1929. Shedding-motions ; selvedge s h e d d i n g mechanism; tappet shafts.-In combination with a loom tappet shedding-motion comprising jack levers a', a<4>, tappets a, and main tappet shaft A, there is provided an additional tappet shaft B carrying tappets b which actuate additional jack levers to operate the healds carrying the border or other warp thread which form the repp pattern. The shaft B is capable of being driven at relatively different speeds from the ordinary tappet shaft A by means of a change wheel C, carried by a pivotally mounted member c<2>.
Patent GB-391870-A (GB)
Title: Improvements in and relating to safety razors and safety razor blades
IPC: B26B21/56
Filed: 1932-08-20
Abstract: 391,870. Safety razors. NYBERG, G. A., 197, City Road, London. Aug. 20, 1932, No. 29134/31. [Class 30.] In a safety razor blade having blade-locating apertures or depressions in the form of a design indicating the manufacture of the blade, the apertures co-operating with sets of projections on holders which differ inter se, the design is formed partly in the blade 4 and partly in a panel 3 registering with a dovetailed or other opening 6 in the back or end of the blade or with a closed slot therein. The panel may be constituted by the material removed from the blade in forming the opening or it may be of celluloid, hard rubber, or phenolic condensation product. The holder is of the kind wherein the blade is clamped between a pivoted pair of plates hinged together at one end.
Patent GB-637338-A (GB)
Title: Improvements in or relating to the operation of carburetter throttle valves for internal combustion engines
IPC: F02N99/00
Filed: 1947-10-31
Abstract: 637,338. Spray carburetters. BENDIX AVIATION CORPORATION. Oct. 31, 1947, No. 29150. Convention date, June 24, 1939. [Class 7 (iii)] In a carburetter wherein partial depression of the accelerator pedal to open the throttle valve 27 also closes a switch in the starting motor circuit, while further movement of the pedal to open the throttle valve to the wide open position when the engine is cold forces open the choke valve 18, against the pressure of the usual thermostatic device, the throttle valve 27 is allowed to open freely until a stop 70 carried by a lever 36, freely pivoted on the throttle valve shaft 26, engages a pivoted stop 64, further opening of the valve 27 being opposed by a spring 38 connecting the lever 36 to the throttle actuating lever 30 fixed to the shaft 26 and actuated by a rod 28. The choke 18 is connected by a rod 56 to a stepped cam 54 which limits the closing of the valve 27, and the end 57, Fig. 4, of rod 56 projects through the cam 54 and contacts an arm 60, when the choke is closed, to rotate the stop 64 into the path of the stop 70. When the choke 18 is open the part 57 is disengaged from the arm 60 and the lever 64 is rotated under its own weight, or by a torsion spring, until an arm 66 thereon contacts a step 68, in which position the lever 64 is out of the path of the stop 70 and the throttle valve can open freely. At starting the contact of the stop 70 with the lever 64 indicates that the pedal has been depressed sufficiently to close the starting switch. If the engine becomes flooded, the throttle valve can be opened against the force of spring 38 until a heel 42 contacts an arm 62 to rotate the cam 54 and open the choke 18 through the rod 56. A link 44 connected to the lever 30 operates an accelerator pump 46.