baber/WOPTO huggingface dataset:
Patent GB-420626-A (GB)
Title: Improvements in or relating to the manufacture of articles containing gutta-percha or balata
IPC: B29C37/00
Filed: 1933-11-07
Abstract: Articles, for example, balls, having moulded surfaces which are composed wholly or in part of guttapercha or balata, vulcanized or not, are treated to produce a hard surface, with an acidic substance containing the group-SO2.OH.  The free valency of the group may be satisfied by a hydroxyl, aryl, or alkyloxy group. The treatment may be effected in the presence of one or more oxidizing agents such as potassium persulphate, and is preferably followed by a treatment with an alkaline substance such as ammonia, or an alkyl ammonium compound to give products of a light colour.  Caustic alkalies, sodium carbonate, borax, or sodium acetate may also be used, but these make the product pale yellow. The surfaces so produced are capable of taking a high polish and are particularly suitable to be ornamented by pointing or varnishing.  The acidic material may be used in solution in water, acetic acid, alcohol, glycol, or glycerol.  If the acidic material is sulphuric acid the concentration should be over 75 per cent. In an example, a moulded golf ball with a shell composed of guttapercha containing a small amount of rubber is immersed at ordinary temperature in sulphuric acid of 98 per cent strength containing about 5 per cent potassium persulphate for 20 minutes, and then in water containing 5 per cent of 0,880 ammonia for 30 minutes, dried and polished.
Patent GB-1127685-A (GB)
Title: Electric power supply
IPC: H02M1/08
Filed: 1966-07-11
Abstract: 1,127,685. Automatic voltage control. MAGNAVOX CO. July 11, 1966 [July 12, 1965], No.30998/66. Heading G3R. A regulated D.C. output at terminals 40, 42 is derived from an A. C. input at terminals 10, 12 by way of a full-wave rectifier 20 and a thyristor 46 which is connected between the rectifier 20 and a smoothing circuit 52, 44 for the D.C. output; firing pulses for the thyristor are derived from the unsmoothed output of rectifier 20 by means of a circuit including resistors 80, 82 and 83, a differentiating capacitor 84, a first transistor 60 and a second transistor 70 which has its collector connected to the control electrode of thyristor 46 over a capacitor 88 having a low resistance to the transient firing pulses but a large resistance to the rectified A. C. which might otherwise have unwanted switching effects on the thyristor. The output voltage at terminals 40, 42 is automatically maintained constant by control of the firing angle of the thyristor 46 in dependence upon output voltage variations as detected by a circuit including a voltage divider 100, 102, 106 and a Zener diode 108 which is connected to the base of transistor 60, and the Specification describes how the required firing pulses are produced with reference to Fig. 2 (not shown).
Patent GB-1080666-A (GB)
Title: Device for discharging electrostatic charges from poor conductors by means of a coron
IPC: H05F3/04
Filed: 1965-07-21
Abstract: 1,080,666. Discharging static electricity. W. SPENGLER. July 21, 1965 [July 21, 1964], No. 31051/65. Addition to 854,237. Heading H1X. The device of the parent Specification for discharging static electricity is modified in that the corona points d<SP>1</SP> are earthed and the supply voltage is applied to the conductors b which are embedded in the sides e defining the slot c in the insulating body a. A further device is described (Fig. 2, not shown) in which a larger body a is provided with four slots c. Alternatively a number of bodies a 1  and a 2  (Figs. 3 and 4, not shown) having dovetail tongues or grooves on each side are assembled side-by-side to form a device having any number of slots.
Patent GB-1197190-A (GB)
Title: A Gas-Liquid-Solid Contact Device
IPC: B01F3/04
Filed: 1967-07-05
Abstract: 1,197,190. Humidifier; gas/liquid/solid contact apparatus; MANUFACTURERS ENG. & EQUIPMENT CORP. 5 July, 1967 [5 July, 1966], .No. 31067/67. Headings B1R and B1F. A device wherein a gas is contacted with a liquid or reacted with a wetted solid material comprises a chamber with a peripheral wall 1 and internal partitions made of a material such as P.T.F.E. which is not wetted by a liquid and porous plates 3 containing a wettable particulate material 2, a body of liquid being disposed above the upper plate 3 and gas passed upwardly through the chamber. The device may be used as a humidifier or as shown used to determine the oxygen-content of a gas. In this case the liquid employed is a potash solution, the plates 3 are of silver and the mass 2 is powdered silver, the lower plate 3 being provided with an electrical connection 9 so that the device becomes the cathode of an analysis.
Patent GB-1215667-A (GB)
Title: Sliding-vane rotary fluid displacement machine
IPC: F01C1/344
Filed: 1969-06-19
Abstract: 1,215,667. Rotary-piston machines. INGERSOLL-RAND CO. June 19, 1969 [July 22, 1968], No.31108/69. Heading F1F. A rotary sliding vane machine, described as an air motor, comprises a casing body 3, Figs. 1, 2, having a cylindrical bore 6 extending between end plates 4, 5 and a rotor 7 formed with an output shaft 8 and mounted on an eccentric portion 20 of a stationary shaft 11 for rotation within a cylinder 16 which is a loose fit in the casing body 3. The rotor 7 which is made in two parts 14, 15 for ease in assembly includes a plurality of radial axiallyextending slots therethrough fitted with sliding vanes 18 whose outer ends sealingly engage the inner surface of the cylinder 16 and inner ends are engaged by a bearing 19 supported on the eccentric shaft portion 20. The cylinder 16 at all times rotates, sometimes faster than and sometimes slower than the rotor, depending on speed and frictional forces, to reduce friction and hence wear between the vane tips and the cylinder 16. The vanes are formed with arcuate edges to permit slight movement relative to the cylinder 16 without allowing the latter to wobble. Sealing strips 31 lightly loaded by springs are fitted between the casing body 3 and the cylinder to seal the inlet 23 of the motor from its outlet 24.
Patent GB-1351915-A (GB)
Title: Apparatus for reducing smear of an image formed by exposing an object to penetrating radiation
IPC: G03G15/054
Filed: 1972-07-04
Abstract: 1351915 Electro-photographic printing apparatus XEROX CORP 4 July 1972 [6 July 1971] 31284/72 Heading G2H In an apparatus for producing an image of an original 26 on a photo-conductive surface 12, Fig. 1a, using X-Rays produced by a device 29 a capacitor 16 is placed between a controlling electrode 20 and a conduction substrate 14 below the surface 12. The capacitor is formed from the controlling electrode 20 and a second electrode 22 between which is located a dielectric 18. The capacitor 16 is charged prior to or during exposure from a power source 28 through switches 25, 27 and each charge lasts for about 50 exposures. The capacitor controlling electrode photoconductive surface and conductive substrate may be housed in a cassette the surface and substrate being housed in a body portion whilst the capacitor and electrode is located in a lid portion. Fig.1b shows a modified arrangement using controlling electrode 22' and capacitor 16'.
Patent GB-811320-A (GB)
Title: Method of producing rubberised cord reinforcements
IPC: C08J5/06
Filed: 1955-11-02
Abstract: 811,320. Material composed of adhesivelybonded cords. DUNLOP RUBBER CO. Ltd. Nov. 2, 1955 [Nov. 22, 1954], No. 31291/55. Class 140. A method of producing rubberized cord reinforcements comprises passing cord continuously through an impregnating bath and drying apparatus, winding the cord on to a warp beam and leading the cord from the beam to a rubberizing calender.
Patent GB-208551-A (GB)
Title: Process and apparatus for the continuous chlorination of raw cellulose with a view to eliminating therefrom the noncellulosic compounds
IPC: D21C9/10
Filed: 1923-12-13
Abstract: 208,551. Vains, A. R. de. Dec. 18, 1922, [Convention date]. Pulp, preparation of.-Non-cellulose compounds are eliminated from raw cellulose or pulp by treatment with chlorine gas in a contra-flow process continuously operated. In the operation conducted under pressure, concentrated pulp is introduced at d into a chamber a having stirrers b<1>, and is discharged at e. Chlorine gas is admitted at g, the admission of gas and the discharge of pulp at e being adjusted by valves to maintain a level such as h<1>, a window c being provided for the purpose. A number of chambers a may be arranged in series. In apparatus working at atmospheric pressure, the pulp is distributed at C<1>, Fig. 2, in a tower A filled with elements B, which may be smooth or corrugated cylinders, and chlorine is admitted at A<1>. The chlorinated pulp passes to reaction towers D the dimensions of which are such as to permit the pulp to remain therein for 10 minutes. The hydrochloric acid produced in the treated pulp is neutralized with lime in towers E, and the neutral pulp collected in towers F.
Patent GB-329606-A (GB)
Title: A sewing-needle threader
IPC: D05B87/00
Filed: 1929-10-16
Abstract: 329,606. Goundry, W. J. Oct. 16, 1929. Needle-threaders.-A metal blank is cut to have a leg c, a recess b and a groove d. The needle is placed with the head in the short leg of the recess band allowed to drop so that the leg c enters the eye. The thread is placed in the groove d. When the needle is removed, the eye is pulled over the thread loop which is retained by the groove d so threading the needle.
Patent GB-973918-A (GB)
Title: Improvements in fire hose
Inventor: ASHTON ERNEST WILLIAM SHELDON
IPC: A62C33/00
Filed: 1962-08-16
Abstract: 973,918. Fire hoses. GEORGE ANGUS & CO. Ltd. July 24, 1963 [Aug. 16, 1962], No. 31519/62. Heading F2P. A fire hose comprises a woven textile jacket 11, 12 having applied to its inside a water impervious material which fills the valley of the weave 13, 14 and partially impregnates the crests 15 in such a way that there is substantially no percolation of water through the jacket at normal working pressures and below until the hose is exposed to heat, and in which percolation occurs through the jacket to protect the hose when the jacket is heated. The hose may be lined (1) by applying a latex or plastisol of rubber or P.V.C. to the exterior of a flat jacket or a jacket expanded by internal pressure, scraping the coated hose, e.g. by passing the coated expanded hose through a circular die and turning the hose inside out after the coating has set; (2) by providing a lining layer of liquid or sheet form in the jacket between the jacket and an expandable mandrel, expanding the mandrel and allowing the layer to set; (3) by inserting liquid lining material 20 into the jacket 10, distributing it to form the lining by a suitable internal scraper and setting the lining. In the latter case better impregnation occurs if a plurality of scrapers 25 are used. Specification 957,929 is referred to.
Patent GB-1390897-A (GB)
Title: Manufacture of chenille yarn
IPC: D04D3/00
Filed: 1973-07-03
Abstract: 1390897 Chenille yarn FILCOR SL 3 July 1973 [4 July 1972] 31639/73 Headings DID D1F and D1W A machine for the manufacture of chenille yarns comprises means 195 for supplying at least two first core threads 177 from bobbins 178 maintained stationary relative to the machine, means for winding chenille effect thread 25 around the core threads 177 while guiding the thread 25 from a creel- 22 to form a balloon 199 of rotating thread around the bobbins 178, means for supplying external second core threads 18 laterally of the woundon chenille effect thread 25, means for cutting the turns of effect thread 25 between pairs or groups comprising one fish core thread 177 and one second core thread 18, and means for twisting and winding the at least two chenille yarns so formed. The core threads 177 are passed down stationary guide spindle 151, maintained stationary by permanent magnets 173, 175 or by being otherwise fixed to a machine part. The spindle 151 passes through a further spindle 28 which is mounted for rotation relative to the spindle 151 by bearings 150. Conduits 144 are provided in the spindle 28 for the passage of effect thread 25. Mounted within the end of the spindle 151 there is provided a mandrel 160 in the form of a plate, the core threads 177 passing on either side of the plate. The effect thread 25 passes from conduits 144 through conduit 165 in end cap 164 and is wound around the core threads 177 and mandrel 160. The effect thread 25 is led to the conduit 144 via a rotating guide 149 whereby a balloon 199 is formed about the bobbin 178; balloon guards 176a and 139 are preferably provided. The second core threads 18 are fed from bobbin 17 via guides 200 to endless belts 250 which are guided to run parallel to the mandrel 160. One or more rotating circular knives are inserted in a slot provided in the end of the mandrel 160 whereby the turns of effect thread are severed. The severed effect thread pieces are entrained between one core thread 177 and one core thread 18 and conveyed to the twisting means e.g. a ring twister 201. The drive mechanisms for the various machine parts are fully described together with yarn absence indicators and warning lamp 271 when the machine is stopped due to yarn absence.  With reference to the ring twister 201, a mechanism is described for shortening the traverse of the ring rail to produce a tapered package.
Patent GB-1362236-A (GB)
Title: Gravity-fed storing and dispensing device and elements for use  therewith
IPC: G03G15/00
Filed: 1971-07-06
Abstract: 1362236 Delivering and feeding sheets EASTMAN KODAK CO 6 July 1971 [6 July 1970 (2)] 31724/71 Heading B8R [Also in Division G2] A storage and dispensing device H for planar photoconductive chips C, the device forming part of an electrophotographic copying and processing system, comprises a chamber having sloping front and rear walls 42, 44. The chips C are fed into the entrance 48 at the upper end of the chamber by rollers 26, 27, the roller 27 being nearer to the entrance 48 so that the chip is fed forward in a substantially horizontal position. When it is released, it falls under gravity and is guided by the walls 42, 44, the fall being braked to some extent by the cushion of air between each chip and the preceding one. Further guiding means are provided by two rails 4 running down each side of the chamber (see also Fig. 3, not shown). The chips C are themselves constructed as shown in Fig. 4, and at each edge a tab 34 is cut and curled back as shown, and the guide rails 4 engage in the slots so formed, thus guiding the chip as it falls. The bent-back tabs 34 also act as spacers to keep the chips out of contact with each other as they stack up at the bottom of chamber H. Protuberances (38<SP>1</SP>, Fig. 6, not shown) punched in the margins 32 serve the same purpose. The sheets stack up as they are held by a lip 54 at the bottom end of wall 44, a similar lip 52 on each guide rail 4, and a spring detent 60 on wall 42. Lip 54 has a recess 62 to enable the pin 66 of a pusher mechanism P to engage the lowermost chip C and, push it forward so that it drops on to rollers 8 and is carried forward to the next station.
Patent GB-997529-A (GB)
Title: Pail type shipping container
Inventor: ULLMAN FREDERICK ERNEST
IPC: B65D41/12
Filed: 1963-08-12
Abstract: 997,529. Bail handles. METAL CONTAINERS Ltd. Aug. 12, 1963 [Aug. 10, 1962 (3)], No. 31732/63. Heading A4A. [Also in Division B8] A bail handle 28 for a container formed with a bead 27 has a loop 33 at an angle to the adjacent part of the handle, the loop 33 and its attachment lug having interengaging cam surfaces. As the handle is raised, it is forced outwards so that it clears the bead; in its lowered position it lies close to the container wall. The loop 33 and the lug 31 are contained in the space below the beads 27 of adjacent containers. As seen in side elevation the loop 33 may be curved, Fig. 4 (not shown). As shown in Fig. 7, the lug 31 may have a diagonal slot which achieves the same effect of camming the handle. Again, Fig. 10, the lug may be a hollow member having a cam surface 41 which acts against the inwardly sprung handle as the handle is raised; or, Figs. 13-17 (not shown), the handle may be sprung outwards and be cammed inwards by an inner surface of the lug as the handle is lowered.
Patent GB-1121420-A (GB)
Title: Lighted push button switch assemblies
Inventor: KOEPKE JOHN ALBERT
IPC: H02B1/044
Filed: 1967-07-11
Abstract: 1,121,420. Lamp caps and holders. ILLINOIS TOOL WORKS Inc. 11 July, 1967 [13 July, 1966], No. 31889/67. Heading H2E. [Also in Division H1] Replacement of the bulb 58 of a lighted push button switch assembly (10) is effected by pulling the hollow push button 38 outwardly to a position spaced from the spring-urged actuators (34) of the switches 16, the condition of which is indicated by the bulb, such that resilient foot sections 42 of button 38 engage a tapered section 62 of bulb 58 to remove it from its socket 56, the button 38 then being returned to its normal actuator engaging position, Fig. 8 (see also Figs. 5, 6, not shown). Depression of button 38 normally actuates switches 16, which are of the type described in Specification 816,296, and lights bulb 58 without any movement of the bulb, as described in Specification 957,254. Contact strips 60 of bulb 58 normally engage terminal strips 52 when the bulb is pushed into its socket 56. The assembly (10) is mounted in an apertured panel 14 by insertion into opening (66) and turning until resilient tabs 70 on stem 22 grip the panel and resilient detents 74 engage in notches 68 to resist rotation of the assembly.
Patent GB-408368-A (GB)
Title: Improvements in sweetmeats
IPC: A23G3/48
Filed: 1932-11-11
Abstract: A sweetmeat consists of fried slices of a vegetable, e.g potato, sweet potato, yam, artichoke or parsnip, coated with chocolate by dipping into a preparation consisting of roasted finely-ground cacao beans, sugar, and the dry solids of full cream milk, with or without spice, essential oils, aromatic substances or other flavouring.  In the case of vegetables, such as potatoes, having edible skins, the vegetables are cleaned but not skinned before frying.  Flavouring may be added during the frying and the slices, if of sweet potato, may be covered with brown sugar prior to coating.  The coating material may be prepared in the same way as eating chocolate but preferably more butter is added so that it flows more readily when melted.  The coating may be effected by spraying, by pouring the melted chocolate over the slices, or by dipping by hand or machine, e.g. by sieves, perforated trays or the like which are mechanically immersed into and withdrawn from the chocolate; the sieves &c. may be rapidly revolved when withdrawn to throw off excess chocolate.
Patent GB-1516419-A (GB)
Title: Device for securing loads to reinforced concrete structures
IPC: E04B1/41
Filed: 1976-07-30
Abstract: 1516419 Anchoring bolts H PAPKE 30 July 1976 [1 Aug 1975 20 Nov 1975] 31951/76 Heading F2H [Also in Division El] A device for fastening loads on reinforced concrete structures comprises an anchor bar 1 with a slot 2 between sides 3 and ties 5 formed or ribbed reinforcement rod attached at intervals to the anchor bar 1. The ties may be welded as shown to web 4 joining the sides 3 or they may be attached by a bayonet-type of fastener in which a head portion of the tie engages in a clamp attached, for example by welding, to the web 4.
Patent GB-619953-A (GB)
Title: A method for the production of pure anhydrous carrageen jelly
IPC: C08B37/12
Filed: 1945-11-27
Abstract: Pure anhydrous carrageen jelly is prepared by adding an alkali-metal salt or mixture of such salts and an alcohol to the strained extract obtained by boiling carrageen with water, the alcohol being added at the same time as or after the salts, the precipitate thus obtained being washed, preferably by an alcohol-water mixture, dried and ground.  The extract may be frozen, melted and filtered after the addition of the salts so as to remove a considerable quantity of water prior to treatment with alcohol.
Patent GB-1046008-A (GB)
Title: Friction linings
IPC: F16D69/02
Filed: 1964-08-06
Abstract: A friction lining comprises multiple yarns or strands and a binder in which some of the yarns are of "S" twist and the remainder are of "Z" twist, the proportions of "S" and "Z" yarns or strands are such that warping of the lining is reduced or eliminated.  The binder may be of thermosetting resin, an oil, natural or synthetic rubber or any combination of these.
Patent GB-819437-A (GB)
Title: Improvements in or relating to telephone amplifying circuits
IPC: H04B3/42
Filed: 1956-10-22
Abstract: 819,437. Telephone transmission systems. PHILIPS ELECTRICAL INDUSTRIES Ltd. Oct. 22, 1956 [Oct. 25, 1955], No. 32096/56. Classes 40 (4) and 40 (9). A negative-impedance repeater is provided with saturable core inductances to enable high voltage ringing currents to be by-passed. As shown, the repeater which is designed for audio level currents only is transformer coupled so as to be effectively in series with the transmission line 1, and comprises a pair of transistors, positive feed-back being provided by coupling the base of each to the collector of the other via the transformer 10. The shunt coil 13 is arranged to be saturated by ringing signals, so that for these signals the effective impedance introduced into the transmission line is zero. With the inductance 13 providing zero impedance the amplifier would oscillate sufficiently to maintain the saturated condition of the inductance 13 after the cessation of the ringing current and so perpetuate the oscillation, and so the core of the feed-back transformer 10 is arranged to saturate (and thereby limit the oscillation amplitude) before the inductance 13 can saturate. A variable shunt resistance 11 controls the feed-back and hence the gain of the amplifier. The feed-back circuit is also shunted by a tuned circuit 14, 15 to compensate for non-linearities in the gain-frequency characteristic due to parasitic capacities in the transformers and inductance. The arrangement shown is suitable for a repeater whose D.C. power is fed along the transmission line 1, the transformer being arranged not to saturate for the D.C. power supplied. If power is not required to be fed along the line, coil 13 may be omitted and the core of the coupling transformer arranged to saturate to the ringing current. Feed-back may be provided in other ways, e.g. by coupling the collector of each transistor to'the base of the other via condensers, the feed-back circuit being shunted by a saturable inductance.
Patent GB-360179-A (GB)
Title: Improvements in yarn winding machines
IPC: B65H54/28
Filed: 1930-10-25
Abstract: 360,179. Lubricating traverse mechanism in winding-machines. HIGGINSON, J. and ARUNDEL COULTHARD & CO., Ltd., Sovereign Works, Stockport. Oct. 25, 1930, No. 32115. [Class 120 (ii).] In yarn-winding machines of the type in which the yarn is guided on to the bobbins &c. by yarn guides reciprocated by cams having cam grooves therein, the cam a, which is mounted on a shaft b to reciprocate a yarn guide c carried on bars d, runs in an oil bath f, the level of the oil in which is maintained below the cam by an overflow pipe g: Associated with the cam is a dipper or thrower e which lifts the oil and throws it on to the guide bars d. The oil flows from the carriage for the thread guide on to the bowl h, thus lubricating it and the cam groove. A removable cover is provided on the casing enclosing the cam. The cam is completely enclosed in this casing except for a narrow slit i for the thread guide. Several cams and thread guides may be mounted on the same shaft.