baber/WOPTO huggingface dataset:
Patent GB-1529276-A (GB)
Title: Telecommunication exchange systems
IPC: H04Q3/00
Filed: 1977-09-06
Abstract: 1529276 Inter-exchange systems STANDARD TELEPHONES & CABLES Ltd 6 Sept 1977 [21 Sept 1976] 39061/76 Heading H4K In a multi exchange system, none of the interexchange links to be used for a speech connection between two subscribers connected to different exchanges of the system are taken into use until a free path has been identified between the calling and called subscribers. To this end the processors of the exchanges are interconnected by an order wire network over which the identity of the called subscriber is transmitted to the terminal exchange. If the required subscriber is free the processors cooperate to find a free inter-exchange path between the subscribers. Some at least of the exchanges and links may be arranged for PCM, TDM operation. Where a TDM exchange has a number of sections, the time channels on an incoming heavy traffic link, may be distributed over different sections of the exchange.
Patent GB-1533576-A (GB)
Title: Computer systems
IPC: G06F15/173
Filed: 1975-09-24
Abstract: 1533576 Data transmission COMPUTER TECHNOLOGY Ltd 22 Sept 1976 [24 Sept 1975] 39130/75 Heading H4P Transfer of data from m master logic devices to s slave logic devices takes place through a highway constituted by s groups of m conducting paths. As described in relation to a computer system, the highway is provided by a printed circuit board 1 (the mother board), which is associated with daugher boards 2 carrying masters 3 and slaves 4. Each master can communicate with each slave, and the priority of each master is uniquely determined by the mother board as is the slave port address of each slave. Further, the mother board, through its highway, always carries information as to the status of all the slaves to all the masters and an addressed slave can lock-on to an instructing master whilst appearing busy to all others.
Patent GB-890249-A (GB)
Title: Damped structure
IPC: F16F1/50
Filed: 1960-11-15
Abstract: 890,249. Vibration damping. LORD MANUFACTURING CO. Nov. 15, 1960 [Nov. 16, 1959], No. 39159/60. Class 108(3). A structure 1, Fig. 1, is vibrationally damped by the application of a layer 2 of visco-elastic material having a multiplicity of small thin plates embedded therein and oriented generally parallel to the structure surface in at least partially overlapping relation. In a particular example plates 1/4 inch square and 2/1000 inch thick are embedded in a coating of visco-elastic material which is applied to the structure by trowelling.
Patent GB-1125807-A (GB)
Title: Improvements in the testing of materials
Inventor: BALL GERALD STUART MORRIS
IPC: G01N3/32
Filed: 1965-09-14
Abstract: 1,125,807. Testing sheet material. ESSO RESEARCH & ENG. CO. Aug. 26, 1966 [Sept. 14, 1965], No.39243/65. Heading G1S. Apparatus for alternately stretching and relaxing test pieces 16 in at least two directions comprises at least three members 10 adapted to move backwards and forwards, means 17 for attaching a test piece to each of said members and means for providing each of said members with like pivoting movement about hinges 11. In the embodiments shown four members 10 are provided which are adapted to pivot outwardly and so stretch the test material in two directions at right angles. The members Fig. 2 may be pivoted outwardly by means of a reciprocating piston 5 which engages with an inclined inner surface 4 on the members 1. Alternatively the members may be moved by a rotating cam. The members are returned to their initial position by means of springs.
Patent GB-1336078-A (GB)
Title: Junction device for multiphase cables
IPC: H01R4/44
Filed: 1971-08-23
Abstract: 1336078 Electric couplings A SCHIFFMAN 23 Aug 1971 [17 Dec 1970] 39358/71 Heading H2E A branch terminal for connecting main conductors 1-4 to branch conductors 7 comprises a series of metal clamps which are arranged in physically interconnected pairs. In the arrangement of Fig. 1, each pair of clamps such as 5, 6 and 10, 11 are interconnected and operated by a single clamping screw 13 which may be either of insulating material or of metal, means being provided in the latter ease to insulate the screw from the clamps. An insulating partition 12 and an H shaped cross-section insulating partition 19 are used to insulate each clamp from its neighbour, and the clamps have cutting edges 8, 9 for piercing the main conductors' insulation. In the arrangement of Fig. 3, each clamp is operated by an individual clamping screw and one half 33, 36 of each of a pair of clamps is fixed to an insulating partition piece 38 which may also be firmly attached to the outer casing, 39, 40. Both arrangements are such that the axes of all the clamping screws lie in the same plane, this plane being orthogonal to the main cable axis.
Patent GB-1517528-A (GB)
Title: Method of and apparatus for causing a uniform flow of a particulate product to be discharged from an outlet at one end of a receptacle
IPC: B65D90/48
Filed: 1975-09-25
Abstract: 1517528 Discharging hoppers; endless chain conveyers R D BURGESS 25 Sept 1975 [16 Dec 1974] 39402/75 Headings B8S and B8A Particulate material 18 is contained in a receptacle 10 provided with a moving bottom in the form of a conveyer 12 and with a discharge opening 14, the discharge of material through the opening 14 being assisted by means of an inclined endless conveyer 20 on which the assemblies 92 are disposed, the conveyer 20 being pivotable about a shaft 22 such that during motion thereof its lower end is raised and lowered as shown by the double arrows, and the tine assemblies 92 are mounted on the conveyer 20 at relative spacings which are greater than (but less than 1À5 times) the circumference of the lower sprocket wheels 74, 76 about which the conveyer 20 passes, and each time assembly 92 describes an undulating path relative to the surface of the material 18, the path described by each assembly 92 being out of phase with that described by the assembly 92 which preceeds it, as shown by the solid and broken lines in Fig. 1. The conveyer 20 comprises a pair of spaced chains 88, 90 which are driven by respective sprockets (84, 86) mounted on a shaft 22 which is driven by a motor (30), Fig. 6 (not shown). The upper rims of the chains are disposed in respective channels 46, 48 and the lower rims in respective channels 50. The lower sprocket wheels 74, 76 are each eccentrically mounted on a pivot arm 78 so that as the chains are driven the rotation of the wheels 74, 76 causes the upward and downward movement of the lower end of the conveyer. The chains 88, 90 are maintained taut by means of springs 60, Fig. 7, which engage rods 64, 66 connected to the shaft 72 on which the wheels 74, 76 are mounted. Each time assembly 92 comprises a plurality of tines (94), mounted on a support shaft 96 connected by a pair of arms 98 to a plate 100 which is pivotally attached to a chain link, and a link 102 extends from a pivotal connection on the plate 100 to a link which trails the said chain link. This manner of mounting the tine assemblies on the chains results in each tine assembly being pivoted rearwardly as it moves past the discharge opening 14 after leaving the lower arm of the conveyer 20.
Patent GB-856645-A (GB)
Title: Polymerization of olefins
IPC: C08F12/08
Filed: 1957-12-19
Abstract: Ethylenically unsaturated hydrocarbons are polymerized in a hydrocarbon medium using as catalyst a dispersion of a compound having the empirical formula AlTi2Cl8 and an alkali metal aluminium hydride, e.g. Li AlH4 or NaAlH4 Monomers specified are styrene, propylene, ethylene, butene, butadiene, isoprene, 3-methyl-1butene, hexene and olefins derived from cracking wax.  The compound of empirical formula AlTi2Cl8 may be prepared by heating TiCl4 + Al powder while dispersed in hexane.  In an example sodium hydride is also present during the polymerization.  Diethyl ether, isopropyl alcohol, hydrochloric acid, water and dilute ammonia are materials used in the purification and fractionation of the polymers obtained. Specification 856,644 is referred to.ALSO:A polymerization catalyst consists of a dispersion of a compound having the empirical formula AlTi2Cl8 and an alkali metal aluminium hydride (e.g. LiAlH4 or NaAlH4) in a hydrocarbon liquid.  The compound AlTi2Cl8 may be obtained by heating TiCl4 + Al powder while dispersed in hexane.  In an example sodium hydride is also present. Specification 856,644 is referred to.
Patent GB-1114541-A (GB)
Title: Polyamide copolymers
Inventor: EDGAR OWEN BURCHELL
IPC: C08G69/26
Filed: 1965-09-16
Abstract: The invention comprises copolyamides suitable for spinning into fibres of non-circular cross-section, a majority of units in the polymer chain being hexamethylene adipamide units at least 20% being hexamethylene terephthalamide units and units of at least one other polyamide being present.  This other polymer may be poly-e -caprolactam, poly(hexamethylene isophthalamide), poly(hexamethylene suberamide), poly(hexamthylene sebacate) or poly(aminoundecanoic acid).  In examples such copolymers are prepared using water as catalyst and acetic acid as chain terminator.
Patent GB-1357560-A (GB)
Title: Tape recorder and magnetic tape cassette
IPC: G11B23/087
Filed: 1971-08-25
Abstract: 1357560 Recording and playback BADISCHE ANILIN- & SODA-FABRIK AG 25 Aug 1971 [25 Aug 1970 29 July 1971] 39782/71 Heading G5R In a cassette anti tape-spillage system, a spring loaded serrated brake 136 locks on to the serrated edges of the tape reel flanges, and curved members 133, 134 joined to levers 129, 130 connected together by a leaf spring 135 engage and tension the tape 53 when the cassette is not in use, as in Fig. 6. When the cassette is being operated, as in Fig. 7, a pin 141 of the recorder functions to release the brake, and also causes levers 129, 130 to pivot and so move members 133, 134 out of engagement with the tape. In a further embodiment (Figs. 1-5, not shown), each reel is independently braked through the engagement between its flange rims (60, 61) and two arms (58, 59) of each of two three-armed levers (54, 55), and the tape is simultaneously tensioned through being pressed by the third arm (62) of each lever against the walls of the cassette housing. The reels and the tape are released by a pin (88) which is moved by a hinged cover (70) of a cassette operating recess in the recorder, the pin rotating the three-armed levers on closing the cover.
Patent GB-1275163-A (GB)
Title: Anthraquinone dyes and process for the impregnation dyeing of synthetic fibre materials
Inventor: NEEFF RUETGER
IPC: C09B1/58
Filed: 1970-08-19
Abstract: 1275163 Solvent dyeing FARBENFABRIKEN BAYER AG 19 Aug 1970 [20 Aug 1969] 39922/70 Heading D1B [Also in Division C4] Synthetic fibre materials of polyesters, polyamides, polyurethanes, polyolefins and cellulose triacetate are solvent dyed with anthraquinone dyestuffs of the general formula: wherein Hal is halogen, X is S, O or NH, Y is a single bond or an oxygen atom, m is 0, 1 or 2, n is 1, 2 or 3 and B is trifluoromethyl, or C 1 -C 12  alkyl, cycloalkyl, or aralkyl with the proviso that the sum of the carbon atoms in substituent or substituents B is 1 to 12. After impregnation with a solution of the dye in a solvent the fibre material is subjected to a heat treatment at 120-230‹C e.g. a dry heat treatment or a heat treatment in super heated solvent vapour. The solvents used which are preferably water-immiscible and have boiling points of 40-150‹C include tri- and tetrachloroethylene, 1, 1, 1-trichloroethane and 1, 1, 1-trichloropropane and the dyestuff may be dissolved in a first solvent e.g. an alcohol, dimethylformamide, dimethylacetamide, dimethylsulphonide or sulpholane before adding to the water-immiscible solvent. Orange, red and ruby shades are obtained.
Patent GB-971459-A (GB)
Title: Electroluminescent display device
IPC: H05B33/20
Filed: 1960-11-21
Abstract: <PICT:0971459/C4-C5/1> An electroluminescent device comprises an electroluminescent layer 24 in engagement with one surface of a piezo-electric sheet 10, electrodes 12, 18 disposed on one side of the sheet 10 and so arranged to co-operate with at least one electrode 14 on the other side of the sheet that when electrical pulses are applied thereto elastic waves, accompanied by corresponding electrical fields, are caused to travel over the sheet 10 in directions inclined relatively to one another, and an elastic wave absorbing termination 30, 32, 34, 36, e.g. of lead, provided at each edge of the sheet.  The piezo-electric sheet 10 can be of polarized sintered lead titanate-lead zirconate ceramic.  The electrodes can comprise two pairs of elongated conductive strips, the electrodes of each pair being disposed substantially in register with one another on opposite sides of the piezo-electric sheet, Fig. 1, or can comprise elongated electrodes on one side of and co-operating with a common electrode 100 on the other side of the sheet, Fig. 2. In the construction shown in Fig. 2 the piezo-electric sheet 10 and the layer 24 of electroluminescent material are sandwiched between the common electrode 100 and a further transparent electrode 102 and modulating signals can be applied between these electrodes. Means 40 are provided for applying a first pulse train to the electrode 12 and a second pulse train to the electrode 18 as described in Specification 905,682 The pulses of at least one of the pulse trains can have a progressively varying time spacing to produce a scanning action.  Reference has been directed by the Comptroller to Specification 801,985.
Patent GB-1194278-A (GB)
Title: Abrasive Saw Manufacture Thereof.
IPC: B24D5/12
Filed: 1968-08-22
Abstract: 1,194,278. Abrading. NORTON CO. 22 Aug., 1968 [31 Aug., 1967], No. 40137/68. Heading B3D. [Also in Division C7] A method of producing an abrasive saw comprises electrodepositing abrasive particles with a first metal matrix 13 on an edge surface of a metal blank 1, Fig. 6, and encapsulating the first deposit and the adjacent marginal portions of the side surfaces of the blank with an additional electro-deposit of abrasive particles in a metal matrix 13a. In apparatus for carrying out the method, a plurality of annular saws having internal cutting edges may be produced simultaneously. A number of saw blanks 1 having a thickness of 0À002 to 0À006 inch and non-conductive spacers 2 are clamped between end plates 3, the spacers having a smaller internal diameter than the blanks. An electroplating solution and abrasive particles are inserted through an opening 6 and an anode 4, connected by a slip ring 10 to the positive terminal of a D.C. course, is passed through an assembly which is rotated by driven rods 8 while the assembly contacts a mercury bath 11 connected to the negative terminal of the source. The first metal matrix 13 with abrasive particles is thus deposited on the rims of the blanks. The process is repeated using non-conductive spaces having a larger internal diameter than the saw blanks so that the second matrix 13a with abrasive particles is electrodeposited over the first matrix and the marginal side portions of the blanks. The first matrix may be 0À005 to 0À010 inch thick and the second matrix 0À002 inch thick. The electroplating solution may comprise an electrolyte of 60 ounces per gallon of nickel sulphamate, 10À2 ounces per gallon nickel metal, 5 ounces per gallon of boric acid, and 5 hundredths ounces per gallon of anti-pitting agent. The same solution may be used for both stages using diamond abrasion particles of 200 grain size, or a nickel plating solution using 220 grain size natural diamonds may be used for the first stage and a cobalt plating solution using 500 grain synthetic diamonds used for the second stage.
Patent GB-905588-A (GB)
Title: Improvements in or relating to colorimeters or absorptionmeters
Inventor: COLLINS GEOFFREY CHARLES
IPC: G01N21/25
Filed: 1959-11-26
Abstract: 905,588. Photo-electric colorimeters. EVANS ELECTROSELENIUM Ltd. Feb. 23, 1961 [Nov. 26, 1959], No. 40210/59. Class 40 (3). Apparatus for measuring the optical density or absorption of a sample (e.g. a coloured solution) comprises a prefocus lamp 1, light from which passes through a condenser lens system 2, heat filter 3, vertical slit 4, adjustable interference wedge filter 6, plano-convex cylindrical lens 6a and either one of the test sample carriers 7 when operatively positioned) to a photo-electric cell 8 the output from which operates a mirror galvanometer 9 (also utilizing light from lamp 1) co-operating with a scale 28. In operation, a sample of the coloured solution is put into one of the carriers 7 and distilled water into the other (both being accessible via a hinged door 30) and with the photo-electric cell disconnected (by means of a threeposition switch, Fig. 4 (not shown) the zero-set control 35 is adjusted such that the reading on scale 28 is at infinite absorption. The sample solution is next positioned in the optical path by operation of a sliding rod 21, grooves 25 in which co-operate with an indexing ball 24 (see Fig. 3) to locate either of the carriers 7 in the required position and with the photo-electric cell connected to the galvanometer via a sensitivity control potentiometer 29, the wedge filter 6 is adjusted by means of control-knob 10, acting via a slow-motion transmission 19, shaft 11 carrying a drum 11 calibrated in wavelength, and rack-and-pinion drive 16, 17, to the position at which maximum absorption is known to occur for the particular sample. The carrier 7 containing the distilled water is now positioned in the optical path and potentiometer 29 adjusted to bring the reading on scale 28 to zero absorption and after this the sample solution is re-positioned in the optical path and its absorption read on scale 28.
Patent GB-1328425-A (GB)
Title: Telecommunications exchange systems
IPC: H04Q3/545
Filed: 1971-08-27
Abstract: 1328425 Automatic exchange equipment SIEMENS AG 27 Aug 1971 [4 Sept 1970] 40268/71 Addition to 1205310 Heading H4K The stored programme controlled exchange described in the parent Specification is modified by having the peripheral equipments made in the form of plug-in units adapted to be plugged into a rack position. When a unit is plugged in and the rack position scanned a characteristic signal is transmitted to a central store to indicate the position and type of unit. Units may be multiplied in the racks without any double seizure of signal wires. The system is especially useful when carrying out maintenance checks on the exchange equipment.
Patent GB-1086956-A (GB)
Title: Method and apparatus for forming lateral necks on hollow bodies
IPC: B29D23/00
Filed: 1964-10-02
Abstract: 1,086,956. Forming lateral necks on hollow thermoplastic bodies. DYNAMIT NOBEL A.G. Oct. 2, 1964 [Oct. 2, 1963], No. 40358/64. Heading B5A. In a method of forming a lateral neck on a hollow thermoplastic body, an opening having a diameter less than the internal diameter of the neck is formed in the wall of the body, the wall is heated in the region of the opening and the wall surrounding the opening is gripped by means of a tool arranged externally of the body and drawn outwardly and expanded by the tool until the neck diameter is of the desired value after which the thermoplastic material is cooled while the tool maintains the internal diameter of the neck constant. As shown, a pipe 1 is clamped between flange 10 screwed on to cylinders 11 of supports 15 each movable on guide rails 12 on a table 13 and secured thereto by a clamp 14. A plate 17 covers the pipe on the side having the opening 5, an opening 16 in the plate corresponding to the opening 5. The tool for forming the neck comprises a mandrel 6 having a spiral worm 7 at one end and connected to a spindle 9 at the other. The spindle has a screw-thread of smaller pitch than the spiral worm 7 and is mounted in a threaded block 18 fixed on a plate 19 which can swivel about pivot 20 and be locked to the table by clamping means. In operation the spindle is rotated either manually or by a motor causing the mandrel to penetrate the opening 5 and enter the pipe whereby the wall surrounding the opening is forced outwards and expands around the mandrel until the final position is reached. Cooling is effected and the mandrel retracted after which an auxiliary pipe can be inserted into the neck and adhered thereto. The mandrel may be shaped to provide a neck which tapers and may be of the same diameter as the internal diameter of the pipe 1.
Patent GB-1161850-A (GB)
Title: Means for Opening Containers.
Inventor: LIPSKE BENJAMIN BENEDICT
IPC: B65D17/50
Filed: 1967-09-04
Abstract: 1,161,850. Opening containers. NATIONAL CAN CORP. 4 Sept., 1967, No. 40372/67. Heading B8D. An opening 7 in a can end member 2 is closed by a removable tape 11 of metal foil adhered to the member 2, a layer of plastisol 14 being adhered to the underside of the member 2 and to the tape 11 through the opening 7 so that when the tape 11 is removed the plastisol 14 is torn thereby opening a can to which the member 2 may be attached. The tape, which may include a pull tab, is attached by means of an adhesive 13 applied as a coating to both the tape and the member 2; each coating including a thermoplastic vinyl resin and a thermosetting resin and the two coatings being separated by a thermoplastic layer. The plastisol 14 is applied to the underside of the member 2 over a vinyl top coating and a vinyl base coating which is modified by a thermosetting resin. In modifications, the opening may be defined by a line of weakness (29) comprising a slit (31) and a score (33), Figs. 9-12 (not shown); or the slit (31c) may be extended, only one end of the aperture being scored, Figs. 13-14 (not shown); or a pair of tapes (lid, 11d<SP>1</SP>) may be used to cover a pair of holes, respectively, or the pair of holes may be covered by a single tape, Figs. 15-18 (not shown).
Patent GB-1360044-A (GB)
Title: Assembling panelled walls
IPC: E04C2/292
Filed: 1971-08-27
Abstract: 1360044 Sealing panel edges DE VRIES ROBBE & CO NV 27 Aug 1971 [8 Sept 1970] 40398/71 Heading E1W A sealing strip 18 for insertion between adjacent edges of single- or double-wall panels comprises an elongated resilient body 19 whose cross-section is substantially in the form of a rectangle and which has a plurality of ridges 20 of substantially triangular cross-section extending along its length and projecting outwards from each of the wider sides of the rectangle in inclined positions relative to the length of the body. The strip 18 is preferably of neoprene and where, as shown in Fig. 1, it is used between double-wall panels, has a single projection 25 or a double projection 22 extending perpendicularly from one or both of its wider sides, to act as a spacer between the panel walls. The strip may alternatively be made only in one form, having a single projection on one side and a keyway on the other side to receive a key on a detachable projection (Fig. 6, not shown). The strip may be hollow and have internal reinforcement (Fig. 5, not shown). Wall panels for use with the strip may comprise glass wool plates 12, 12', Fig. 2, fitted in metal frames formed by sheets 9 having double-bent flanges 10, 11 (Fig. 1) to retain the lateral edges adjacent the joining strips, the top edge of plate 12 and the bottom edge of plate 12' engaging upper and lower wood strips 13, 13', and a dividing plate 14 being fitted between the adjacent edges of the plates. The panelling is completed by lower and upper gutter-shaped members 15 16 respectively and floor plinths 17.