baber/WOPTO huggingface dataset:
Patent GB-1358074-A (GB)
Title: Apparatus for generating pulse dips in a pulse dip carrier system
IPC: H04Q9/14
Filed: 1971-06-16
Abstract: 1358074 Signalling over power lines TOKYO ELECTRIC POWER CO Inc 16 June 1971 [19 June 1970] 28113/71 Heading H4R In a system for signalling over A.C. power lines in which a circuit including an electronic switch is used to connect a capacitor across two power line conductors at a predetermined phase angle of the power current, two such circuits are connected so as to be able to apply two signalling pulses to each cycle of the power supply one in each half cycle of the supply. Two circuits for generating and injecting signal pulses are described. In both embodiments the electronic switch is an S.C.R. turned on at a predetermined phase angle following a zero crossing of the power level by a delay circuit of RC, LC or RL type connected across the conductors and controlling the gate of the S.C.R. As shown a delay or phase change network comprising R2, R3 and C2 connected between the line conductor at the top and the bottom of the figure trigger the S.C.R. via diode D1 at a predetermined phase angle connecting a capacitor C1 across the line conductors via an inductance L. The capacitor causes a reduced voltage spike to be superimposed on the line and the inductor is included to make this spike into a single cycle sine-wave variation. In the other embodiment (Fig. 9, not shown) the inductor is not used and the circuit is coupled to the line at a distribution transformer.
Patent GB-924640-A (GB)
Title: Process for the preparation of polycarbonates
IPC: C08G64/24
Filed: 1961-08-02
Abstract: In the manufacture of polycarbonates by reacting phosgene with a di-(monohydroxyaryl) alkane in an aqueous alkaline medium containing an inert organic solvent for the polycarbonate resin formed there is used as a catalyst a tetraaryl arsonium compound, e.g. a tetraphenyl, tetranaphthyl or tetraanthracyl arsonium hydroxide or halide.  The reaction mixture may also contain (a) a chain-stopper, e.g. phenol, tertiary butyl phenol, chlorophenol, nonyl alcohol or butyl alcohol or (b) an antioxidant or an additive to prevent decomposition of phosgene or to react preferentially with phosgene decomposition products, e.g. sodium dithionite, potassium bisulphite or carbon monoxide. Examples describe the manufacture of bisphenol A polycarbonate.
Patent GB-1083279-A (GB)
Title: A shuttle element for guiding the shuttle in a gripper shuttle loom
IPC: D03D49/60
Filed: 1966-06-23
Abstract: 1,083,279. Shuttle races. SULZER BROS. Ltd. June 23, 1966 [June 23, 1965], No. 28194/ 66. Heading DIE. Shuttle race teeth for a gripper shuttle loom have weaving surfaces 8 of tugsten carbide.
Patent GB-758498-A (GB)
Title: Improvements in or relating to cleaning devices for dust-laden air-filter bags
IPC: B01D46/04
Filed: 1954-09-30
Abstract: 758,498. Dust-laden air fllters. JUNKMANN, H. Sept. 30, 1954, No. 28226/54. Class 8(2). A reverse-jet cleaning device reciprocating along and blowing cleaning air through an inwardflow dust-laden air filter bag comprises one or more jet tubes which whilst singly or together encircle the bag leave a free portion thereof at all transverse cross-sections. A single jet-tube d, Fig. 4, for cleaning a filter bag c comprises a helix, or it may be of elliptical or saddle-like form. Two separate tubes a, b, Fig. 1, each partially surrounding the bag c are arranged in two nearly parallel planes normal to the bag axis. Specification 752,767 is referred to.
Patent GB-420804-A (GB)
Title: Improvements relating to cartons or like containers
IPC: B65D43/02
Filed: 1933-05-02
Abstract: 420,804. Paperboard cartons &c. PAGE, J. E., 350, George Street, Sydney, Australia. May 2, 1933, No. 28238 /34. Divided out of 419,148. [Classes 18 and 125 (iii)] Paperboard &c. cartons, &c., for ice-cream, and other food products and other materials of a granular, powdered, solid, or fluid nature are provided with cover members which consist of a ring 30 of non-corroding metal &c. having inturned lips 32, 38 at the lower and upper edges respectively of which the latter engages a fibreboard &c. disc 34 which seats in a groove bounded by the lip and the former engages tongues 13 bent outwardly and backwardly from the rim of the body. The cover piece 34 is adapted to be ruptured along an arcuate score line to provide a finger-piece for its removal. A bottom E of the form shown is provided.
Patent GB-158988-A (GB)
Title: Improvements in folding chairs
IPC: A47C4/50
Filed: 1919-11-14
Abstract: 158,988. Attwood, H. T. Nov. 14, 1919. Folding and swing seats.-An adjustable swing seat, consisting of jointed parallelogram members 1, 2. 3, 4, is suspended by links 10 on hooks carried by side frames 12. The hooks are suspended on vertical members 15 arranged as shown between the welded tubes 12 and an horizontal flat bar 14 forming the side frames. The side frames are connected together by detachable transverse braces 13.
Patent GB-986946-A (GB)
Title: Photographic apparatus and device for use therein
Inventor: LAND EDWIN HERBERT
IPC: G03B17/52
Filed: 1963-07-17
Abstract: 986,946. Processing photographic films. INTERNATIONAL POLAROID CORPORATION. July 17,1963, No. 28316/63. Heading G2A. A device for guiding two photographic sheets into superposition and dispensing a processing liquid between them comprises a chamber for the processing liquid, with an exit passage at one end for the superposed sheets, two entry passages for the separate sheets inclined towards each other and adjacent said exit passage, the walls of the entry and exit passages exerting cbmpressive pressure on the sheet(s) passing through them, but capable of limited movement away from the sheet(s) to relieve the said pressure. The device 44 is shown in perspective in Fig. 2 and in section in Fig. 3,and is in the form of a framework made of a synthetic plastic. In the front part is a collapsible container 70 of processing liquid, which supplies a chamber 66. The two sheets enter through respective openings 76, 78, and are removed, in contact, through an opening 68 at the front of the nozzle section 62, the processing liquid thus being fed between them as they are brought into contact. The device is fitted into a camera as shown in Fig. 1, one (photosensitive) sheet 34 unrolling from a spool 36 to be exposed behind an opening in the inner rear wall 24 of the camera, and the other (print-receiving) sheet unrolling from a spool 74. Fig. 5 shows an enlarged view of the front or nozzle portion of the device. The parts of the nozzle defining exit opening 68, and also entry openings 76,78, are made of a resiliently deformable material, so as to facilitate the movement of the sheets through these openings. This deformation may be assisted by slits 84,86 in the nozzle,as shown. Slots 92,98 may also be cut in the nozzle, for still further flexibility of the wall portions defining the film passages, and may contain biasing springs. Figs. (not shown) 6,7,11, and 14 illustrate various ways of effecting this biasing. After the exposed sheet and copy sheet are pulled together out of the camera,they may be cut off by a knife blade 90 pivoted near the exit passage. Specification 684,592 is referred to.
Patent GB-743783-A (GB)
Title: Improved dies for bending sheet metal and strips of other flexible materials
Inventor: BURR HARVEY
IPC: B21D5/06
Filed: 1952-11-11
Abstract: 743,783. Drawing-dies. BRITISH INSULATED CALLENDER'S CABLES, Ltd. Nov. 20, 1953 [Nov. 11, 1952], No. 28419/52. Class 83 (4). [Also in Group V] A skelping die for bending circular section tubes from strip metal or other materials has a cross-section comprising a straight line 14, Fig. 4, joining two semi-circles 16, the width at the entrance end being substantially the same as that of the strip. The radius of the semi-circles remains constant as the section tapers along the length of the die until the exit end comprises two semi-circles. These may be of different radius of curvature so that a step 17 is formed when the edges, of the strip are required to overlap. The die comprises two sections 1, 2, Fig. 1, with opposed grooves 13 of tapering depth' and attached by studs 4, 7 and nuts 5, 8 to a base plate 3 which has slots 10 to permit adjustment of the sections 1, 2.
Patent GB-464341-A (GB)
Title: Improvements in and relating to mercury arc rectifiers
IPC: H01J13/18
Filed: 1935-10-15
Abstract: 464,341. Mercury-vapour rectifiers. BRITISH THOMSON-HOUSTON CO., Ltd., and WHITAKER, F. P. Oct. 15, 1935, No. 28473. Addition to 394,361. [Class 39 (i)] The valve between the two portions of the cooling medium in the hollow anode stem described in the parent Specification is operated thermostatically, for example, by a bimetallic strip or by a bellows containing a vaporizable liquid, so that it opens at a predetermined temperature of the cooling medium. This temperature may be below that at which the medium vaporizes.
Patent GB-884978-A (GB)
Title: Improvements in hand torches
IPC: F21L4/00
Filed: 1960-08-17
Abstract: 884,978. Electric battery lamps. TANG WING CHUEN. Aug. 17, 1960, No. 28491/60. Class 39(2) In an electric torch in which colour screens are provided which can be moved into and out of the path of the light beam, the screens are mounted in the battery casing and connected to a member which can be rotated to move the screens by a cable operated by movement of a control member on the casing. The bulb 5 is mounted in a metal socket 6 in contact with the reflector 4 which is carried by an insulating block 7, the base contact of the bulb being in contact with a terminal 8 in the base of the block connected by a lead 12 to a terminal 13 connected to the centre contact of the battery. A lead 10 from a spring 9 surrounding the block 7 and in contact with the reflector is connected to one side of a switch 11, the other side of which is in contact with the casing. The block 7 has projections 16a, 16b on which discs 17, 18 are mounted to revolve and to which are connected the pole ends of a part spherical member 19 consisting of two colour screens, e.g. red and green, each of about 120 degrees angular width leaving a clear space of 120 degrees. The disc 17 has a projection 20 forming a pulley round which a cable 21 is doubly wound and secured by a fastening pin. The cable passes round a pulley 23 on the side of the casing and is connected to a member 22 sliding in a slot in a casing 24 or the side of the battery casing. The member 22 has a pair of prongs engaging projections on the casing 24, and a projection 32 passing through a slot 33 in the casing and terminating in a press button 38 urged outwardly by a spring 39. Pressure on the button 38 releases the prongs from the. projections and enables the member 22 to be moved along the slot to bring one or other of the colour screens into position in front of the light beam.
Patent GB-975662-A (GB)
Title: Improvements in and relating to filter presses
Inventor: EVANS SAMUEL
IPC: B01D25/176
Filed: 1961-08-05
Abstract: 975,662. Filter-presses. PROGRESS ENGINEERS Ltd. July 27, 1962 [Aug. 5, 1961], No. 28518/61. Heading B1D. In an assembly of press trays having frame portions surrounding thinner main portions, and feed holes for the entry of material to be treated, the trays are spaced apart in the region of the feed-holes by means of projections on clamping members, which are provided around the feed holes and clamp the filter cloths in position. In Figs. 1 and 2 a tray having main portion 10, frame 11 and feed hole 13 carries filter cloths 16. The cloths, whether extending through hole 13 or cut off at the centre, are clamped by annular members 20, 24. Member 20 has a cylindrical sleeve or shoulder portion 21 extending through 13 and has key 22 fitting into keyway 14. Member 24 is a washer held on to 21 by nut 25. Spacing between the trays is maintained at the centre by projections 20a, 24a on the faces of members 20 and 24. The projections are in the form of lugs having flat faces bearing upon registering lugs on adjoining trays. The trays may have more than one hole, each fitted with clamping members bearing projections.
Patent GB-1424638-A (GB)
Title: Substituted benzothiazoles and process for their preparation
IPC: C07D277/74
Filed: 1974-06-27
Abstract: 1424638 Difluoromercapto - benzothiazole HOECHST AG 27 June 1974 [6 July 1973] 28555/74 Heading C2C 2 - Difluoromercapto - benzothiazole derivatives of the general formula wherein each of R 1 , R 2  and R 3 , same or different is H, F, Cl, Br, CF 3 , phenyl, phenoxy, nitro, C 1-4  alkyl or C 1-2  alkoxy, are prepared by reacting a compound of general formula with a difluoro-halomethane in the presence of a base and, optionally, subsequently nitrating the compound obtained. Amongst numerous examples the compounds 5- and 6-methoxy-, 6-nitro- and 4- and 5-chloro-2-difluoromethylmercapto-benzothiazole are prepared. Acaricidal compositions contain a compound of Formula I as active ingredient together with a carrier.
Patent GB-750630-A (GB)
Title: An improved wreath rack
Inventor: CARTER ARTHUR
IPC: A01G5/04
Filed: 1953-10-16
Abstract: 750,630. Tripod stands. BAXENDALE & CO., Ltd. Oct. 13, 1954 [Oct. 16, 1953], No. 28563/53. Class 52(3). [Also in Group XV] Display arms 15 are pivotally attached to at least one leg of a collapsible tripod with radial stays 20. The arms 15 of strip metal are pivoted between the flanges of channelled legs 13 and can fold upwards to lie in the channels.
Patent GB-1188539-A (GB)
Title: Improvements in Disposable Cutting Tool Inserts
IPC: B23B27/14
Filed: 1967-06-21
Abstract: 1,188,539. Cutting tool inserts. GENERAL ELECTRIC CO. 21 June, 1967 [12 Sept., 1966], No. 28590/67. Heading B3T. A disposable cutting tool insert has at the intersection of its top and bottom faces with its side faces a plurality of cutting edges 2, 4, 6 and 8 at least one 8 of which, but not all, is provided with a chamber 10. The chamber 10 is a flat surface which forms an angle of between 10-45 degrees with the top face of the insert. Recesses 12 and 14 are provided in the top and bottom so that a raised surface portion 16 is provided adjacent the cutting edges. The insert, which is indexable, is secured by a pin 26 in a tool holder 20 engaging a hole 28 in the insert. The insert is made of cemented carbide.
Patent GB-1126362-A (GB)
Title: Improvements in and relating to electric circuit breakers
Inventor: FLURSCHEIM CEDRIC HARALD
IPC: H01H9/08
Filed: 1965-07-06
Abstract: 1,126,362. Vacuum switches. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. 24 June, 1966 [6 July, 1965], No. 28597/65. Heading H1N. A circuit-breaker has main contacts 1, 4, in insulating fluid and auxiliary contacts 16, 18, connected in parallel, the contacts 16, 18 being arranged to open after main contacts 1, 4 have opened, and to close before contacts 1, 4 have closed, and the contacts 16, 18 being accommodated in an evacuated space, i.e. the auxiliary contacts forming a vacuum switch 14. An actuating rod 81 of insulating material is pivoted at 9 to the movable contact carrying arm 23 which is pivoted at 5, a cam surface 24 of arm 23 engaging an abutment 22 on an operating rod 19 of the vacuum switch 14, after an initial opening movement of the main contact 4, to open contacts 16, 18. A spring 25 recloses the vacuum switch 14 before rod 81 recloses main contacts 1, 4. The circuitbreaker may be double- or three-pole and has conventional trip mechanism, and may be operated manually. The main contacts open in oil, liquid insulant or insulant gas such as SF 6 .
Patent GB-1069939-A (GB)
Title: Anilides
IPC: C07D277/56
Filed: 1964-06-15
Abstract: The invention comprises compounds of formula <FORM:1069939/C2/1> wherein X is a halogen atom, each of R1 and R2 is a hydrogen atom or a C1- 5 alkyl, C1- 5 alkoxy or trifluoromethyl group and R4 is a C1- 6 alkanoyl group, and their preparation by halogenation at elevated temperature of compounds of formula <FORM:1069939/C2/2>
Patent GB-825836-A (GB)
Title: Improvements in or relating to the hot working of metal work-pieces
Inventor: FOSTER JOHN
IPC: B21H1/22
Filed: 1955-10-11
Abstract: 825,836. Forging; rolling; making connecting rods. MASSEY Ltd., B. & S. Jan. 10, 1957 [Oct. 11, 1955; Jan. 10, 1957], Nos. 28869/55 and 964/57. Classes 83 (2) and 83 (4). A method of hot working metal workpieces comprises feeding heated workpieces successively and in correct synchronism through a number of use-rolling machines 15-18, Fig. 1, whose rollers 25, 26, Fig. 3, are formed each with a definite contour to be imparted to the workpieces, and finally into a forging press 20. Bar stock is fed automatically along a table 10 to a shearing machine 11 which divides it into individual workpieces which pass along conveyer 12 to a gas or induction furnace 13. The heated workpieces are fed by a chain conveyer 14 through the successive adjustable rolling machines 15-18 and are rotated about their longitudinal axes through 90 degrees between successive machines ; alternatively the successive machines may have their roller axes displaced 90 degrees. Rotation of the workpieces is effected by passing them through a helical box-like guideway 39 having longitudinal slots 40, Fig. 3, for the chain conveyer arms 37, Fig. 4 (not shown). To synchronize the entry of a workpiece into the roller pass with the rotation of its rollers 25, 26, a slide 32 carrying a spring-loaded pusher for engaging the rear end of the workpiece is driven by a link 27 from an adjustable crank pin 30 connected to the roller drive shaft 29. After rolling the workpieces pass to a pneumatic bending device 19 and then into the die forging press 20 from which they move along conveyer 22 to a trimming press. A slipper brake 35 and retractable stop 36 are provided before each rolling machine. In another embodiment, Fig. 5, the feed guide way 46, 47, 48 is of channel section and the synchronized feed slide 41 has in addition to pusher 42 two spring-loaded side grippers 44 for the workpiece. The latter passes from the guideway along which it has been moved by chain conveyer 49, 50 to a roller conveyer 51 driven from the use-rollers 251, 261. The retractable stop 52 is retracted by cam 54 through a telescopic linkage 58 energized by pneumatic pressure controlled by a microswitch and feeler plate 61, 62, Fig. 7 (not shown). If the workpiece is not positioned correctly the stop is not retracted and following workpieces are diverted down shoots 23, 24, Fig. 1, controlled by the micro-switch or by the press operator. The method is described for the manufacture of engine connecting rods.
Patent GB-442241-A (GB)
Title: Improved captive ball apparatus
IPC: A63B69/00
Filed: 1934-10-09
Abstract: 442,241. Golf practising appliances. COLEMAN, A. H., WARD, H., and RAYMOND, A., Watcoben Works, Stebbing Street, Notting Hill, London. Oct. 9, 1934, No. 28898. [Class 132 (ii)] In a captive ball apparatus for practising golf, the ball is integral with a resilient stem capable of yielding in any direction but sufficiently rigid to support the ball. The apparatus comprises a base a which may form part of a case in which the apparatus may be carried. The cover b of the case serves as a platform on which the user stands, the base and the cover being adjustably connected by a removable tube n. On the base a is pivotally mounted an arm e of solid or tubular rubber terminating in a ball e<1>. The pivot d of the arm is adjustable to vary the height of the ball. A paper or other chart i is clipped to the base in front of the pivoted arm. When the user makes a stroke the ball marks the chart and the position of the mark affords an indication of the direction of travel of the ball, and in some cases by reason of the extension of the arm gives an approximate indication of the distance of the drive. An elastic band returns the arm. The ball may be marked with a cross or other device as shown in Fig. 5, so that the mark made by the cross on the chart affords an indication of the twist imparted to the ball and by inference an indication of pull or slice. The cross may be inked by an ink pad and the chart may be cleaned by a wiper k. To prevent damage to the club, the track h immediately behind the ball is made resilient, for example, by a sheet of sponge rubber covered by a plate of spring steel.
Patent GB-362569-A (GB)
Title: Improvements in the construction of chimney flues
IPC: E04F17/02
Filed: 1930-09-29
Abstract: 362,569. Chimneys. ANTHONY, T. H., Stanley House, Morley Road, Chaddensden, near Derby. Sept. 29, 1930, No. 29060. [Class 25.] A block of stone, concrete or the like for the construction of chimneys, having a hole or passage b to form the flue is square or rectangular in plan and has a square or rectangular cut-away portion c at one or more corners to tie or bond with the surrounding brickwork. In cases where it is necessary to carry a flue up at an angle to the vertical the hole or passage b may be inclined as shown. Where one or more flues are formed side by side the hole b is formed off the centre so that the narrower and wider portions of the adjacent blocks may be bonded together. A block having a partly vertical and a partly inclined passage may be used at the join of a vertical and an inclined flue.
Patent GB-335372-A (GB)
Title: Improvements in or relating to flare releasing mechanism for aircraft
IPC: B64D1/02
Filed: 1929-09-26
Abstract: 335,372. Boeing Airplane Co., (Assignees of Monteith, C. N., and Marsh, L. S.). Oct. 17, 1928, [Convention date]. Dropping flares.-An apparatus for dropping flares from aircraft comprises a housing 5, Fig. 1, within the fuselage 1 oi an aircraft, a flare container 19, Fig. 3, within the housing, and means for extending the container beyond the housing and outside the fuselage and simultaneously releasing the flare from the container. As shown, the container 19 is closed at the bottom by a cap 20 which is retained in place by pins 22 on a spring band 23 locked by a forked pin 18. The container is provided with a hook 26; and a spring 28 in the upper part of the housing holds the container with its hock 26 on a bracket 12 rotatably mounted on a shaft 11, which is journaled in bearings 10, 14 on the housing 5. Yoke pieces 16, 15 are secured, one to the housing and one to the lower end of the shaft 11 to guide the container in the housing. The forked pin 18 is connected by a cable 17 to the bearing 14. The shaft 11 is provided with a finger 27, a pin 11<a>, and a handle 29. By a rotation of the shaft, the finger 27 can be brought over the flare container, and simultaneously the pin 11<a> is brought in line with a slot in the bearing 10. The shaft may then be pressed down and this projects the flare container beyond the lower open end of the housing. At the same time, the cable 17 becomes taut and pulls the forked pin out of the spring band 23, and this opens out and releases the cap 20, whereupon the flare drops out. Two such housings 3 are shown in the cockpit 2 of the aircraft, and their bottom ends may be fitted with spring doors 30 which open when the flare container is forced down.