baber/WOPTO huggingface dataset:
Patent GB-301790-A (GB)
Title: Circuit arrangement for telephone installations with semi-automatic working
IPC: H04Q3/58
Filed: 1928-03-16
Abstract: 301,790. Siemens & Halske Akt.-Ges. Dec. 5, 1927, [Convention date]. Semi - automatic exchange systems.- In a system comprising a number of small automatic exchanges A, B, C, Fig. 1, in which the establishment of all calls is controlled by an operator at a central exchange D, calls through the exchange D, e.g., from N1 or N3 to N6 are given preferences over calls within the same office, eg., N1 to N2 or between exchange A and B. e.g., No. 1 to N4, the circuits of the connectors LW which are used for both kinds of calls being such that interruption of an existing connection is only possible in the case of a preferred call. Each of the exchanges A, B, C, comprises finder-connector links AS-LW to an idle one of which a calling subscriber N1, say, is connected, connection then being extended over a further hunting switch AW1 and a two-way junction to the operator at D. If the call is a local one, the connector LW1 is set by impuses transmitted back over the junction, which is then released. If the cell is a preferred call to subscriber N6, say. the seizure of the junction to exchange C causes switch AZV3 to hunt for an idle finderconnector link AS3- LW3 and the connector LW3 is then set by the operator to the wanted line. The change in the circuit arrangements which enables the connector in this case to break in on an existing connection is dependent on the fact that the conrector has been seized over a switch AW instead of, as in a local call, over a finder AS. Figs. 2 and 3 show circuit arrangements of a connector LW1, junction switch AWl and an operator's cord-circuit, which, except as regards the preferred-call feature, are identical with those described in Specification 302,140. When the connector is seized over junction a2 b2 by the operator, relay I is de-energized and E energized so that when relay Vl releases at the end of the impulses, relay P1 operates over the test wiper and contacts 1051, 31v1, 106e. Relay PI completes a circuit for the normal test relay P3 which switches through. If the wanted party is busy, the operator releases the existing connection by depressing key TT which by earthing the 6-wiper completes a circuit 8 for the bridged winding I of relay S in the local connector battery being supplied to the a-wire over coil Dr. Relav S releases the local connector in the manner described in the above-mentioned Specification.
Patent GB-497638-A (GB)
Title: Method of polymerising a halogen-2-butadiene-1,3
IPC: C08F36/16
Filed: 1937-03-19
Abstract: Halogen-2-butadienes-1-3 such as chloroprene with or without other polymerizable substances are polymerized in acid emulsion in the presence of organic agents which are acid-stable and unpolymerizable and which can form additional compounds with chloroprene at 20-50 DEG C. and under atmospheric pressure. Suitable modifying agents are unsaturated compounds containing a carbonyl group adjacent to a double bond, such as benzoquinone and naphthoquinone, aromatic sulphonic acids, aromatic mercaptans, and mercapto-carboxylic acids; thiophenols, thiocresols, nitrothiophenols, chlorothiophenols, thionaphthols, benzyl mercaptan, and thioglycollic, thiolactic, thiomalic, and thiosalicylic acids and their esters are mentioned. The modifying agents may be used with sulphur dioxide or hydrogen sulphide if they do not react with these bodies; a suitable combination is hydrogen sulphide and thioglycollic acid.  Suitable emulsifying agents are soluble salts of tertiary and quaternary ammonium bases which contain at least one long aliphatic chain such as cetyl- and octadecyl-trimethyl ammonium bromide, octadecyl betaine, and the soluble salts of sulphate esters of long chain aliphatic alcohols, such as the sulphate ester of oleyl acetate, sulphonated unsaturated hydrocarbons such as abietene sulphonic acid, and the reaction product of a long chain primary amine with two molecules of epichlorhydrin or glycide at room temperature. The emulsion may be of pH 1-5, and the polymerization may be effected at 0-100 DEG  C. preferably at 20-50 DEG  C.  When the last-mentioned dispersing agents are used, the emulsion may be coagulated by making alkaline to Brilliant Yellow and heating to 60 DEG  C.  The emulsions are preferably aqueous, but other media such as glycols, glycerol or formamide may be used.  Other polymerizable substances which may be added are, for instance, butadiene, methacrylic nitrile, and methyl methacrylate.  Tables are given with particulars of the process and properties of the product when the following modifying agents are used, viz: a  - naphthoquinone, benzene sulphonic acid, thiophenol, b -thionaphthol, thiocresol, p-nitro-thiophenol, benzyl mercaptan, thioglycollic acid, ethyl thioglycollate and thiosalicylic acid; and thioglycollic acid together with hydrogen sulphide and sulphur dioxide respectively.  The polymerization process may be effected continuously.  Specifications 387,363; 393,172, [Group V], 413,666, and 497,420 are referred to.  The Specification as open to inspection under Sect. 91 includes the subject-matter of Specification 497,706. This does not appear in the Specification as accepted.
Patent GB-993695-A (GB)
Title: Improvements in or relating to cisterns
IPC: E03B11/00
Filed: 1962-03-02
Abstract: 993,695. Cisterns. B. H. G. HALFORD. March 1, 1963 [March 2, 1962; May 2, 1962], Nos. 8199/62 and 16862/62. Addition to 873,313. Heading E1T. In a cistern as claimed in Claim 1 of the parent Specification the inner liner is provided with an integral extension 4 to envelope the thermal insulating shell 3. The shell 3 may be made of polyurethene foam whilst the lining 4 is made of thermoplastic resin adhesively secured or heat sealed to a base 5 of like material. A closure cover may be provided, see Figs. 2 and 3 (not shown).
Patent GB-105154-A (GB)
Title: Improvements in Means for Holding Breakable Articles for Transport, Exhibition and similar purposes.
Inventor: MCHUGH WILLIAM
IPC: B65D85/32
Filed: 1916-06-10
Abstract: 105,154. McHugh, W., and O'Connor, M. E. June 10, 1916. Fittings, internal. -Spring holders for supporting eggs f, bottles, jars, &c., for transport, exhibition, storage, &c., are made of two loopshaped wire arms a adapted to embrace the arti cles completely and to grip them near each end, the holders being secured to a base d of cardboard, wood, metal, &c. The wires are twisted at c, and their forked ends e are passed through the base d and bent flat against the back, the loops b normally bending towards one another but being forced apart in the act of inserting the article. Bases such as d may be the walls or partitions of a packing cr show' case, or they may be secured to the insides of the walls of the case. In Fig. 10 is shown a tie l of wire, cord, &c. forming a cradle for the bottom of a bottle.
Patent GB-472381-A (GB)
Title: Improvements in ejector heads of burners, atomizers and similar nozzles
IPC: F23D11/38
Filed: 1937-03-22
Abstract: 472,381. Spray - producers. DEL GENOVESE, P. March 22, 1937, No. 8421. [Class 69 (iii)] [Also in Group XI] A burner, atomizing, or like nozzle comprises a head 1 formed with a hemispherical-cylindrical cavity in which is located a member 2 of complementary shape, the latter being formed on its outer surface with helical grooves 4 which discharge into a cylindrical recess 7 at the pole of the hemisphere. A conical element 8, secured in position by a screwed rod 11 and a counter-screw 13, directs the liquid to the exit channel 9 in the head 1 and is preferably axially adjustable so that the size of the discharge aperture 15 can be varied.
Patent GB-258797-A (GB)
Title: Improvements in door holders
IPC: E05C17/44
Filed: 1926-03-29
Abstract: 258,797. Golby, F. W., (Grand Specialties Co.). March 29, 1926. Clips, sheet-metal. -Door-holders comprising a strut member 7, Fig. 2, pivotally mounted at 8 on a base 3 and adapted to be swung up to inoperative position and secured to the base, are secured by a U- shaped spring 10, Fig. 6 inserted from the back into an opening 11 in the base and having legs 13 bent at 14 to enter notches 15 in the lugs 9.
Patent GB-600627-A (GB)
Title: Transformer for passing from electrically symmetrical systems to unsymmetrical systems and vice versa
IPC: H03H7/42
Filed: 1945-04-05
Abstract: 600,627. Transformers. PATELHOLD PATENTVERWERTUNGS- & ELEKTROHOLDING AKT.-GES. April 5, 1945, No. 8455. Convention date, April 13, 1944. [Class 38 (ii)] In a transformer connecting symmetrical and unsymmetrical systems and having the centre of that winding which is connected to the symmetrical system and one end of the other winding at the same potential, the primary winding, which is in four series connected parts, comprises at least two cylindrical windings and the secondary at least one cylindrical winding, and one winding completely surrounds the other. In the construction shown in Fig. 2 the main parts f and g of the two windings are screened by the interposition of the central parts d 1 , d 2  of the centre tapped winding and the end part e of the other winding, these parts having a one to one transmission ratio. The voltage difference between the two screening winding parts is uniform along the turns, being the difference between - U to + U and o to 2u. In the limiting case as shown in Fig. 5 the winding s is not divided into a screening and another part, while the other winding p having four parts d 1 , d 2 , f 1 , f 2  is dimensioned for a transmission ratio of 1.7 : 1 suitable for the modulator stage in push-pull connection to high frequency stages, Fig. 1 (not shown). Fig. 8 shows the physical arrangement of such windings round a core shown by the dotted lines k 1 , k 2 . For a fine tuning of the oscillation circuits formed by winding sections d 1 , d 2 , f 1 , f 2  and their parallel capacitances, adjustable condensers can be located between the centre of this winding and the ends of the sections. Fig. 9 (not shown). For convenience of manufacture the four parts d 1 , d 2 , f 1 , f 2  may be made equal when the balance is not perfect.
Patent GB-1380263-A (GB)
Title: Telecommunications directory number to equipment number translator
IPC: H04Q11/04
Filed: 1971-04-01
Abstract: 1380263 Automatic exchange systems PLESSEY CO Ltd 20 March 1972 [1 April 1971] 8456/71 Heading H4K In a telecommunication exchange directory to equipment number translator a pulse driven counter cycles through successive counts when a translation is required cyclically addressing the locations of a store, the contents of the addressed locations are compared successively with the directory number to be translated and upon a match being detected the pulse input to the counter is interrupted stopping the counter on a count which is used as the equipment number. The translator may be used in the P.C.M. T.D.M. inter-highway switching exchange described in Specification 1,229,864. As shown, a dialled code to be translated is handed by a start and entered at I/P DD. The start code is detected by a control unit CS/SC which resets a bi-stable TFT and enables a gate GP supplying clock pulses TC to an address counter ADR CNR and to a reset counter RSCNR. The address counter has seven stages the three least significant of which define a highway code for the exchange referred to above and the four most significant bits define a super-highway serving a group of such highways. As the address counter cycles the outputs from stages 4 to 7 are decoded at AD and successively address the storage locations of a permanent diode store PTF. The directory codes read out are compared at COMP with the dialled directory number in a register I/P REG. When a match is detected bi-stable TFT is set gating the translation in the adress counter to an output register OPME and signalling to the control circuit CS/SC, which removes the enabling potential at gate GP preventing further advance of the counter. If a further translation of the same dialled designation is required a further code is fed into the input I/P DD. Control circuit CS/SC responds restoring the enabling potential at gate GP causing the counters to again advance commencing a search for an alternative translation. When all storage locations have been accessed the reset counter reaches its maximum count enabling a bi-stable TCM, indicating that no translation or further translation exists. The reset counter is reset at the end of a translation sequence, the address counter remaining at its current count to provide even use of the translations. Each translation provides an additional bit on line VB 1 indicating whether the superhighway involved has 12 originating and 12 terminating channels or not and this fact is used in a circuit (Fig. 2, not shown), to produce interrogation pulses for use in the exchange.
Patent GB-687287-A (GB)
Title: Improvements in or relating to magnetic recording and reproducing apparatus
Inventor: COLLEY ALFRED GEORGE DE QUERVA
IPC: G11B21/12
Filed: 1950-04-04
Abstract: 687,287. Magnetic sound recording and reproducing apparatus. THERMIONIC PRODUCTS, Ltd. March 30, 1951 [April 4, 1950], No. 8476/50. Class 40 (ii). When an electromagnet 8 on the carrier arm 1 of a magnetic recording and reproducing head is energized a strip. 10 of soft iron pivots about a projection 12 until a rubber sleeve 16 on one end of the strip engages the groove 18 of a tracking disc 4. Continued attraction by the magnet 8 causes the end of the sleeve to be distorted and the arm 1 to be raised thus lifting a guide stylus from the groove. Deenergization of the magnet causes the sleeve 16 to spring back making the arm move back by one groove and allowing it to fall so that the stylus again engages the groove. Repeated energization and deenergization. will cause the arm to be moved back groove by groove. Operation of a switch 20, Fig. 3, in a direction A opens contacts 21, 22 and causes a solenoid brake 23 to stop a record carrying turntable 24. Operation of the switch in a direction B closes contacts 25, 25a, thus energizing a solenoid 26 which moves a contact panel 29 to the right. Movement of the panel causes a charged capacitor 31 to be connected with the coil 7 of the electromagnet 8 and thus back space the magnetic lead 2 by one groove. At the same time the connections to an amplifier 32 are changed from a recording to a reproducing condition. Continued movement of the switch in direction B causes the contacts 21, 22 to close, the brake 23 to be moved off and thus the turntable rotates and reproduction takes place. Complete release of the switch then allows recording to take place. The switch may be in the microphone 19, as shown, or on a typewriter or it may be foot-operated.
Patent GB-1076694-A (GB)
Title: Improvements in or relating to knitted articles of hose
IPC: D04B9/46
Filed: 1963-03-04
Abstract: 1,076,694. Knitted fabrics. B. T. R. REYMES-COLE. Feb. 26, 1964 [March 4, 1963], No. 8545/63. Heading D1K. A stocking is formed from a tubular blank and has a heel portion formed with extra fullness by having in groups of wales on each side of this portion a knitted structure in which the fabric is compacted in the direction along the wales. Figure 3 shows how the portions may be formed by floating bars 21 alternatively behind and in front of loops 19 to form a four course sequence, the loops 19 being longer than the normal loops. Alternatively a two-course sequence may be used in a similarfashion. In a further embodiment (Fig. 7) tuckstitches may be used to produce the same compacting effect. In a further embodiment (not shown) float stitches are used in a single wale which is separated from the main portion of float stitches by two normal wales and is located on the instep side of the main portion. A thermoplastic yarn may be used to facilitate the final boarding operation.
Patent GB-415178-A (GB)
Title: Improvements in or relating to wood cutting, wood sawing, and wood breaking implements
IPC: B27L7/00
Filed: 1933-03-22
Abstract: 415,178. Splitting and breaking wood; benches. FRAME, A. B., 8, Manscombe Road, Livermead, Torquay, Devon. March 22, 1933, No. 8583. [Classes 61 (ii) and 145 (i).] Implement for use in splitting, breaking, and sawing wood has a framework comprising front legs a and a support b connected by hooked members c. A knife g having an upwardly directed cutting edge on which wood is split is mounted on bolts h and spaced from the legs a by sleeves bearing at their inner ends on metal plates k mounted on the legs. A metal bar l is mounted on the frame above and to the rear of the knife g, and a second bar m is secured to the rear of the legs a. Wood is broken by placing it between the knife g and bar l and existing pressure on the outer end ; wood to be sawn is supported on the bars l, m and clamped by a foot s on a screwed member q mounted in a bridge piece o. The foot sand the upper edges of the bars l, m may be serrated. A second and heavier splitting knife may be secured to the framework near the ground. The framework may be in the form of a tripod, and may be clamped to a bench or table.
Patent GB-1413483-A (GB)
Title: Support apparatus for a flushable toilet
IPC: A47K11/04
Filed: 1972-02-24
Abstract: 1413483 Portable closets THETFORD AQUA PRODUCTS Ltd 19 Feb 1973 [24 Feb 1972] 8651/72 Heading B7B [Also in Divisions A4 and E1] A portable toilet 1 of the recirculating pumpflushed type, preferably as described in Specification 1,226,235, is supported on a pair of members 9 of a portable frame 2, where it is retained, e.g. by clamping brackets 17, the frame including one or more tubular frame members 5, 6, positioned so that they can be gripped by a person using the toilet, e.g. a handicapped person, an upstanding tubular member 10, in which slides a plunger 11 for operating flushing bellows 4 of the toilet via an arm 12, and members 13, 14 providing a pivot for a lever 15 whereby manipulation of a handle 16 operates a pedal member 3 of the toilet for opening a discharge valve in the toilet bowl. The frame preferably includes castors 19, and is completed by cross-bars 7, 8 and a toilet roll holder 20. In a modification (Fig. 2, not shown) member 6 is positioned at a reduced height, just below the level of the toilet seat, so that an invalid may slide on to the toilet seat (after lifting the lid shown) from a wheelchair positioned at the side having the frame member 6.
Patent GB-229891-A (GB)
Title: Improvements in or relating to gas producers
IPC: C10J3/00
Filed: 1924-04-05
Abstract: 229,891. Regenerative Coal Gasification System, Ltd., Travers, M. W., and Clark, F. W. April 5, 1924. Producers.-In gas-producers of the kind described in Specifications 198,777 and 210,356 the preliminary distillation chamber is divided into compartments by vertical partitions b.
Patent GB-856651-A (GB)
Title: A new or improved method of photographing an original for reproduction by printing
Inventor: LEMCHE JOHAN HENRIK
IPC: G03B27/54
Filed: 1958-03-18
Abstract: 856,651. Photographic processes. ALLERS ETABLISSEMENT A. S., C. March 18, 1958, No. 8669/58. Classes 98(1) and 98(2) Rows of cards assembled in overlapping relationship and made of fluorescent material are illuminated normally and obliquely and fluorescence is excited at the exposed edges of the cards so that, when in the preparation of a printing plate for the page of a telephone directory or like reference book, the cards are photographed, these edges are not recorded by the camera. Preferably, mercury-vapour lamps 36 producing ultra-violet radiation illuminate the exposed edges of the cards 12 which are impregnated during manufacture with a "Blankofor" (Registered Trade Mark). Lamps 20 may alternatively be arranged in a plane behind camera 16.
Patent GB-142266-A (GB)
Title: Improvements in and relating to the carrying and releasing of bombs or other objects
IPC: B64D1/04
Filed: 1919-04-07
Abstract: 142,266. Craig, J., and Hemingway, S. R. April 7, 1919. Dropping bombs and other articles from a height.-Relates to bomb-carrying and releasing apparatus for use on aircraft, suitable also for carrying and dropping mail-bags &c., and consists in a vertical magazine or holder, Fig. 1, for two or more bombs a, which is charged from below so that the last-inserted bomb is the first released, and in which the bombs are supported by hinged cradles b, which are raised into supporting position automatically by lever arms g as the bomb is inserted. The arms g are connected to the cradles b by torsion springs. Each cradle is held in the supporting position by a hook k, Fig. 4, at each corner, the hooks being retained by spring-pressed pivoted " triggers " n actuated by fingers q on a rockshaft s, which is common to both hooks of each tray, so that release of both hooks is substantially simultaneous. The locking-surfaces of the hooks, triggers, and fingers necessitate a definite unlocking movement before release is effected, and the engagement between the finger q and trigger n is, in effect, a toggle action, the dead-centre line having to be crossed by the finger before it can act upon the trigger arm n<1>. Means are provided to effect the successive release of the cradles by one operating-device. The lever arms g are lowered by the falling bombs, and are locked out of action, as shown, at the bottom of Fig. 1 by a pin i on the cradle next above, until that cradle is raised by the insertion of the bombs.
Patent GB-512854-A (GB)
Title: Improvements in and relating to syphon flushing apparatus
IPC: E03D1/05
Filed: 1938-03-22
Abstract: 512,854. Water-waste-preventers. BURROWS, S. F, March 22, 1933, No. 8755. [Class 26] In a siphonic water-waste-preventer a valve is provided in the part of the siphonic system communicating with the discharge conduit, is closed by a float-operated member and is adapted to be opened by the buoyancy of the float when the water in the cistern has reached a predetermined level, so as to transfer surplus water to the conduit. In a siphon of the bell type the overflow valve comprises an inclined annular face 5 on the bell, so arranged that a flow of water through it will be directed into the stand pipe 2, and a valve carried by a pivoted float arm 9. The valve is normally held closed by the weight of the float. In a siphon of the piston type the valve is mounted on an extension of the long leg of the siphon near the bend.
Patent GB-145895-A (GB)
Title: An adaptor to enable scaled rules to be used more readily in conjunction with marking off tools on the marking off table
IPC: G01B5/02
Filed: 1919-04-07
Abstract: 145,895. Robson, R. H. April 7, 1919. Tools for setting-out work.-A device for facilitating the setting of a scribing-block comprises a rule, preferably with a diagonal scale, vertically slidable in a bracket secured to a marking-off table, and capable of being locked in various positions so that each of the inch divisions of the rule may be in line with the surface of the table. The rule 10 slides in an undercut recess in a guide 1 of a bracket 2 pivoted by a bolt 7 to a plate 3 secured to the marking-off table. The bracket 2 is clamped by a nut 6. A pointer or index plate 12 is secured to the slide 1 in line with the surface of the table, and the back of the rule 10 is provided exactly opposite to the inch divisions with recesses adapted to be engaged by a locking- ball 14, which is in line with the pointer 12 and is held in locking position by a spring 20 acting through a plunger 18. An enlarged part 21 of the plunger co-operates with a fixed cam 23 and has a cam-slot engaging a screw 22 so that, upon turning the plunger 18 by its knurled end 17, the plunger is raised to release the ball. The ball may be further secured by a rod 16 screwed into the plunger 18.