baber/WOPTO huggingface dataset:
Patent GB-1207886-A (GB)
Title: Processes and devices for numbering documents, and the documents so numbered
Inventor: KOSZUL JACQUES
IPC: B41M3/14
Filed: 1968-04-08
Abstract: 1,207,886. Printing apparatus; ticket fraud preventing. IMPRIMERIE CHAIX-DESFOSSES-NEDGRAVURE. 8 April, 1968 [8 May, 1967], No. 16768/68. Headings B6A and B6C. Ticket or other document 1 is printed with line pattern 2 and with rings of digits 3, then number-printing apparatus is used to print numerals 125.6 on it and simultaneously each ring 3 is covered with an incomplete masking circle 4, which leaves one digit from each ring 3 untouched to form the complete serial number 125,624. The right-hand masking circle may be rotated by one digit space as each of a succession of tickets 1 is numbered, and the left-hand masking circle be similarly rotated at every tenth ticket. Forging of a serial number entails masking of one or more untouched digits and cleaning of one or more masked ones which may be printed in an ink so related to the masking ink that the mask cannot be eliminated without affecting it. Alternatively one or three, or even all, of the digits of the serial number may be produced by selective masking of undesired digits of a series, and other symbols, such as letters, may replace digits. The symbols may be arranged in concentric, rather than side by side, rings, or may be printed in columns, in which case masking may be by a plurality of aligned squares, overprinted on all but one symbol in each column. The masks and symbols applied at the same time may be printed by mechanism carried in a reciprocating bed, which co-operates with an axially fixed cylinder which carries the tickets, and the masking of the symbols may be changed at each reciprocation by ratchetwheel and pawl mechanisms actuated by movement of the bed. The ticket may be of paper, cardboard or plastics material, the first stage of printing may be by offset lithography or by printing from a plate and masking and printing of additional symbols may be by typographic printing. Alternatively symbols applied in the first stage may be cancelled by perforation or embossing.
Patent GB-663588-A (GB)
Title: Improvements in or relating to switching systems
Inventor: WILLIAMS OWEN GRIFFITH
IPC: H04J3/00
Filed: 1949-06-24
Abstract: 663,588. Automatic exchange systems. STANDARD TELEPHONES & CABLES, Ltd. June 24, 1949, No. 16792/49. Class 40 (iv). In a telecommunication system a number of subscribers have access to a number of carrier channels, means being provided on the initiation of a call by a subscriber to allot him an idle channel. The invention finds use in party lines in distributer multiplex automatic systems or for connection of sub-exchanges to larger main exchanges in such systems. When the subscriber closes the loop 12, 13 the resulting pulse fires the gas valve 30. After a short delay imposed by the resistance-capacity network 31, 32 the bias on the firing electrode of valve 33 is raised so that when it receives the next pulse over wire 1 from the source 24 this valve also fires, thereby biasing rectifier 36 to conduction. Pulses from the source 24, delayed slightly by the network 26, are thereby admitted from wire 2 to the rectifier 41 which passes the first of them to the anode and grid of valve. 40 connected as a phantastron. The latter thereupon cuts off its heavy screen current, the change being differentiated by circuit 49, 50 to produce a positive pulse which is fed to the communication wire 3. The time constants of the circuit of valve 40 are such that it restores to normal just in time to receive the next pulse for the seized channel. Pulses from wire 3 are fed via a phase inverter 56 to the gate 25 which suppresses the delivery of pulses to the wire 1 corresponding to the seized channel to prevent that channel being seized by another calling subscriber. The calling subscriber's dialling and speech signals variably bias the rectifier 52 to modulate the communication pulses on wire 3. Release of the circuit may be achieved by deriving a negative pulse from the transformer 27 when the subscriber hangs up, and applying this through a condenser and rectifier to the anode of valve 33, which is thereby extinguished.
Patent GB-1473045-A (GB)
Title: Taper-turning attachment for a lathe
IPC: B23Q35/46
Filed: 1975-04-23
Abstract: 1473045 Taper turning attachments HARDINGE BROS Inc 23 April 197S 16879/75 Heading B3T Taper turning apparatus for attachment to a lathe having a spindle support and spindle for receiving and rotating a workpiece and a carriage and cross slide 14 and 18 respectively mounted on the lathe bed 8, the cross slide carrying tools, the apparatus comprising a template support 28 mounted on the bed 8 a template follower 45 mounted on the cross slide 18 the template 26 having a guide bar 46 which is angularly adjustable to incline the bar 46 to produce the required taper on a workpiece, the follower being adapted to contact the guide face and to control the movement of the tool by the simultaneous movement of the slide and saddle. The template is movable by a fluid actuated piston and cylinder means to move the template between a first position wherein the follower contacts the guide bar and a second position in which the guide bar is spaced from the follower so that normal turning operations can be performed on the lathe. The piston and cylinder means which supports the template is provided with a flat surface 156 (see Fig. 5) which is contacted by a roller 158 to maintain the orientation of the guide surface during the operation of the fluid pressure means 28.
Patent GB-236933-A (GB)
Title: Improvements in or relating to friction change speed gears
IPC: F16H15/46
Filed: 1925-07-02
Abstract: 236,933. Rullier, F. July 11, 1024, [Convention date]. No Patent granted (Sealing fee not paid). Variable-speed friction gearing for vehicles comprises a disc 6 with stepped gear surfaces adapted to be engaged and driven alternatively by a bevel roller 23 slidably feathered on a driving shaft 21. The disc 6 is pressed frictionally against the roller 23 with a force which varies with the load on the vehicle. To this end, the vehicle springs 16 are in the form of cantilevers pivotally attached at their rear ends 17, Fig. 2, to housings 19, which carry the road wheels and are connected by a member 20. The springs 16 at their forward ends are rigidly secured to a shaft 13, Fig. 1, pivotally supported transversely on the chassis 1. Increased load causes the shaft 13 to turn from the wheels, which turning through an arm 12 causes a pull in a link 11, so that a lever 8 is moved to press the disc 6 more strongly against the roller 23. A pair of bevel toothed wheels 7, 28 are provided for the highest speed entrained by sliding the roller 23 until clutch dogs 29 upon it engage like dogs 30 upon the gear 28. The disc 6 slides on a squared part 5 of a shaft 4 journaled on bearers 2 upon the chassis and connected by universally-jointed shafts 32 to the road wheels 33. In changing speed, the disc 6 is withdrawn by a pedal 31 to allow the roller 23 to be moved along by a lever 26. The Specification as open to inspection under Sect. 91 (3) (a) comprises also an arrangement by which reversed driving is effected by use of a friction idler. This subject-matter does not appear in the. Specification as accepted.
Patent GB-749694-A (GB)
Title: Hybrid circuits for connecting a four wire transmission line to a two wire transmission line
IPC: H04B1/58
Filed: 1953-06-19
Abstract: 749,694. Two-way transmission. STANDARD TELEPHONES & CABLES, Ltd. June 19, 1953 [June 27, 1952], No. 17036/53. Class 40 (4). In a hybrid connecting circuit including a transformer having three windings 2, 3, 4, and an amplifier 5 having two output circuits 9, 10, signals incoming to terminals 7, 8, are prevented from appearing at the outgoing terminals 19, 20 by arranging that the signals from the two outputs 9, 10 appearing in the outgoing circuit are equal and opposite. Windings 3 and 4 are connected to the anode and cathode respectively of triode 21, Fig. 2, and the number of turns on each winding is such that the signal current developed across load resistor 22 and passing to earth through winding 3 and high impedance 23 is substantially eliminated by the current induced in winding 3. In a modification the cathode and anode circuits are reversed.
Patent GB-384920-A (GB)
Title: Improvements in or relating to brake cylinders for trailers of motor wagons and the like
IPC: B60T17/08
Filed: 1932-06-16
Abstract: 384,920. Fluid-pressure brakes. KNORR-BREMSE AKT.-GES., 9, Neue Bahnhofstrasse, Lichtenberg, Berlin. June 16, 1932, No. 17078. Convention date, July 1, 1931. [Class 103 (i).] A brake cylinder particularly for trailers adapted to be operated by vacuum or compressed air comprises three chambers, one of which is connected to the vacuum pipe and the other two to atmosphere in vacuum operation while the two last mentioned chambers are c o n - nected to a pressure pipe and the first mentioned chamber communicates with the atmosphere in pressure operation. When used as a vacuum cylinder air is exhausted from above the piston b through a vacuum pipe connected at q. The chamber below the piston b is connected to atmosphere by means of a cock connected at r. The interior of the cylinder i is also connected to atmosphere. On admission of air through the connection at q the spring e depresses the piston and applies the brake by means of the rod l. The piston b seats on a soft packing ring o in release position. When used as a compressed air brake, compressed air is admitted by the channel p to the interior of a cylinder i past the packing collar of a piston k on the rod l to the space beneath the piston b. The cock at r is closed and the connection q is open to atmosphere. When the pressure in the cylinder i is released the pressure air above the piston k depresses it and applies the brake.
Patent GB-1068230-A (GB)
Title: Process for the production of cyclobutane-1,2-dinitrile
Inventor: RUNGE JUERGEN
Filed: 1966-04-19
Abstract: Cyclobutane-1,2-dinitrile is produced from acrylonitrile by irradiating acrylonitrile with visible light and/or U.V. light and separating the cyclobutane-1,2-dinitrile from the resulting mixture. Preferably one or more polymerization inhibitors are present in the acrylonitrile. Suitable inhibitors are polyhydric phenols, quinones, copper salts, ammonia, amines, nitrous acid salts and esters, nitroso compounds, methylene blue, phenothiazine, 8-hydroxy quinoline and nitrosophenylhydroxylamine. There may also be present one or more photo-sensitizers in particular ketones, e.g. acetophenone and benzophenone and their derivatives.
Patent GB-258958-A (GB)
Title: Improvements in mooring anchors
IPC: B63B21/32
Filed: 1925-07-03
Abstract: 258,958. Telegraph Construction & Maintenance Co., Ltd., and Berner, C. A. O. July 3, 1925. Anchors.- Mooring anchors of the mushroom type commonly employed in cable laying and repairing are provided, in order that fouling of the cable may be prevented, with a number of triangular plates or fins c radiating from the shank a to which one side is attached. A second side is shaped to conform to the contour of the inner periphery of the head b whilst the third side forms a guide for the cable.
Patent GB-1136560-A (GB)
Title: Process for sorbent regeneration
IPC: C10G25/12
Filed: 1966-04-19
Abstract: 1,136,560. Purifying hydrocarbons. ESSO RESEARCH & ENG. CO. 19 April, 1966 [3 May, 1965], No. 17160/66. Heading C5E. [Also in Division B1] Exhausted sorbent, e.g. activated carbon, ion exchange resin, Attapulgus 'clay or fuller's earth which has been used to remove such acidic impurities as mercaptan, hydrogen sulphide, phenol or thiophene from a naphtha stream over a period of 0À3-200 hrs. at 50-200 F. and ambient pressure, is regenerated by heating the sorbent to 100-350 F., preferably 200- 350 F., at 10-300 mm. Hg for 0À3-72 hrs., suitably by passing steam or hot gas through the sorbent.
Patent GB-1532422-A (GB)
Title: Apparatus for handling rod-like articles
IPC: A24C5/354
Filed: 1975-04-25
Abstract: 1532422 Pusher conveyers/filling cigarette trays MOLINS Ltd 26 April 1976 [25 April 1975] 17161/75 Headings B8A and B8C A batch 2<SP>1</SP> of cigarettes is moved in a direction parallel to the axes of the cigarettes by a pusher 48, and a light pressure is exerted on the top of the batch by a device 310 which moves with the pusher to maintain the batch intact. The pusher 48 is connected to pairs of drive chains 56, 60 by a pair of upright links 52 which each slidably support a member 316 to which is pivoted one end of a link 312 pivoted to an angle member 302 pivoted to the upright 52 and carrying the device 310-which comprises a strip of resilient material. A roller 320 on the member 316 follows a cam 322 to lower the strip 310 on to the batch when the pusher is advanced. The pusher carries a brush 330 which cleans a conveyer 26 of dust. A carrier plate 72 advances with the pusher and is retracted to deposit the cigarettes in a container 50.
Patent GB-566647-A (GB)
Title: Improvements in and relating to postal letter cards and envelopes and the like
IPC: B42D15/08
Filed: 1943-10-20
Abstract: 566,647. Letter - sheets. HARRIS, A.J. Oct. 20, 1943, No. 17210. [Class 146 (ii)] In a combined letter - sheet and envelope, which affords a large writing-space, one half A of a double sheet is provided with gummed flaps C, D at two adjacent edges, and a third gummed flap E is formed by an incision made in the other half B of the sheet. The sheet is first folded on the line F, and then at right angles thereto, after which the three flaps are gummed down.
Patent GB-1336757-A (GB)
Title: Process of producing heat-stable polyvinyl chloride
IPC: C08F14/06
Filed: 1971-05-26
Abstract: 1336757 Polyvinyl chloride CESKOSLOVENSKA AKADEMIE VED 26 May 1971 [11 June 1970] 17259/71 Heading C3P Polyvinyl chloride having improved heat stability is obtained by the use of t-butyllithium, which should contain less than 0À1 wt., per cent of impurities, as the polymerization catalyst. The polymerization is carried out, in bulk or in solution, at -20‹C to + 30‹C and 1 to 4 atm. The catalyst may be added in small portions as the reaction proceeds in order to maintain a constant low concentration.
Patent GB-545662-A (GB)
Title: Improvements in appliances for playing games of chance
IPC: A63F9/16
Filed: 1940-12-05
Abstract: 545,662. Spinning-tops; games of chance. Mc- KEOWN, J. L. Dec. 5, 1940, No. 17299. [Classes 132 (ii) and 132 (iii)] In a top for use in playing games of chance the spinning point consists of a projectile which is projected from the top body when the top falls over. As shown in Fig. 3, the top contains a spring- pressed plunger 19 which is retracted. into engagement with a catch 20 by pressing a loose ball 14 into the restricted mouth of a tube 17 guiding the plunger. When the top, after being spun upon a game board, falls on to its side an actuating arm 22 displaces the catch 20 and the plunger projects the ball fortuitously into one of a number of scoring pockets situated around a board. In a modification, Fig. 6, the ball 27 fits on to a tubular part 24 of the top and is retained by a spring 28 until an actuating arm 30 (displaced when the top falls) liberates the spring-pressed plunger 26 whereupon the ball is projected on the the board. In a further modification, Fig. 10, an hexagonal top marked on its sides with the pips of a die contains a magnet 35 which attracts the soft iron head of a loose hexagonal projectile 41 similarly marked with pips. When, after being spun, the top falls on its side and rotates thereon, the projectile 41 is freed from the magnet by centrifugal force and projected thereby on to the board. The pip indications on the top and projectile when these come to rest afford means for playing various games of chance. The magnet 35 is disposed with. In a further modification, Fig. 14, a second loose die 51 carrying the spinning handle 52 is arranged in the body of the top thus providing a top embodying three dice.
Patent GB-502661-A (GB)
Title: Improvements in and relating to electrical instruments for measuring detonation and knock in internal combustion engines
IPC: G01L23/22
Filed: 1937-06-22
Abstract: 502,661. Piezo - electric crystals. POSTL•THWAITE, F. June 22, 1937, No. 17340. [Class 40 (v)] [Also in Groups XXXVIII and XXVII] An electric pick-up unit is arranged to respond to fluctuations of gas pressure in the cylinder of an internal - combustion engine, the response due to mechanical vibrations being cancelled by employing opposing sets of piezo-electric crystals. As shown, the pick-up consists of two pairs of piezo crystals Q1 ... 4, the pair Q1, Q4 being influenced through a pressure diaphragm D2 and the pair Q1, Q2 through the vibration diaphragm D1. The potentials produced are picked up on electrodes C1, C2 which are insulated from the metal body but electrically connected, the crystals being arranged so that the polarities of the electrodes are equal and opposite when the pick-up is vibrated as a whole. The potential produced by the gas pressure on diaphragm D2 appears on electrode C1 alone and is applied to a filter having a band-pass from 2000 to 20,000 cycles per second.
Patent GB-676340-A (GB)
Title: Improvements relating to thread-rolling machines
IPC: B21H3/06
Filed: 1950-07-11
Abstract: 676,340. Rolling screw threads; making screw and washer assemblies. ILLINOIS TOOL WORKS. July 11, 1950 [July 19, 1949], No. 17353/50. Classes 83 (ii) and 83 (iv). Screw thread rolling machines of the type described in U.S.A. Specification 1,584,264 and 1,798,920 are provided with means whereby a screw thread may be rolled on each stroke and the machine output doubled. The machine may produce permanently assembled screws and washers, and in this case the machine having loosely assembled a screw blank and washer feeds the assemblies to inclined guide rails 38, 40 curving to deliver the blanks between the.fixed dies 26, 28, Fig. 3. A guard rail 50 keeps the blanks in place and an endpiece 52 prevents one head from jamming on the next. A finger 56, Figs. 11 and 14, is bolted to a slide 60, Fig. 5, forming a continuation of a slide 76 to which it is yieldingly attached by a bolt 66 and spring 68. A further slide 80 is attached to the slide 76 by a bracket 78 and carries a pivoted die blank 83 for actuation by the forked end of a lever 86 on a rockshaft 88 linked at 102 to a lever 98 carrying a roller 96 normally held in contact with a cam 92, Fig. 3, by a spring 106. The cam is on a shaft 94 driven by a pinion 112 on a shaft belt driven at 124 from a motor. A crank-pin and connecting rod 116 reciprocate a slide carrying the movable dies 22, 24. Air jets 126, 128 (not shown) assist in the delivery of the leading screw blank in front of the finger 56, Fig. 11, which starts the blank between the dies 22, 26 as the die slide moves to the left and at the same time closes the exit from the rails. At the end of this stroke the blank falls clear of the dies to a catch pan on the frame and the finger 56 moves further to the left, Fig. 14, allowing another blank to pass into rolling position. On the return movement of the die slide this blank is positioned by the finger between the dies 24, 28, and the finger again closes the exit. Since in this direction the blank is carried uphill delivery at the end of the stroke by momentum is assisted by an air jet 132, Fig. 3, and the blank passes to a shoot 134 delivering to the pan, and the finger 56 moves further to the right and returns to the position of Fig. 11 ready for a fresh cycle. Should a blank jam the spring 68 yields if the movement is to the right whilst the spring 106 yields if the movement is to the left. Specification 533,358 also is referred to.
Patent GB-255848-A (GB)
Title: Improvements relating to cooling systems for dynamo-electric machinery
IPC: H02K9/24
Filed: 1926-07-12
Abstract: 255,848. Metropolitan-Vickers Electrical Co., Ltd., (Assignees of Newbury, F. D.). July 23, 1925, [Convention date]. Dynamos and motors, cooling and ventilating; enveloping in special media.-In a dynamoelectric machine which is cooled by hydrogen or other combustible gas flowing in a closed system, such parts of the machine as may allow leakage of the hydrogen etc. are surrounded by an inert gas preferably maintained above the pressure of the atmosphere and of the combustible gas. Lime or other substances may be used in the combustible gas system to absorb the carbon dioxide or other inert gas surrounding the machine and to absorb also oxygen from the air or the products of any combustion of the hydrogen etc. which may be caused by sparking. Fig. 1 shows a machine having fans 6, 7 for circulating hydrogen in a closed path, as shown by the arrows, through the air gap, radial ducts in the stator, an annular intake chamber 11, and two annular discharge chambers 15, 16 terminating in a common outlet 17 containing a water-cooler 18. The casing 2 which confines the hydrogen contains lime or other reagent 21 and is surrounded by an outer casing 19 and the space between the two casings contains an inert gas, such as carbon dioxide or nitrogen, at a pressure which prevents emergence of the inner combustible gas or entry of the surrounding air: Water or mechanical gas-tight seals are used between the casings and shaft at 23, 24. In place of surrounding the whole machine, the inert gas chamber may be localized around the shaft at each end of the machine.
Patent GB-217067-A (GB)
Title: Improvements in or relating to scythes
IPC: A01D1/08
Filed: 1923-07-05
Abstract: 217,067. Wolter, A. July 5, 1923. Branched and h i n g e d handles with clamping devices for tools.- In a scythe in which the blade can be raised and lowered and set by adjusting the blade holder about an axis substantially parallel to the cutting-edge of the blade and securing it by means of an arcuate slot and a bolt, the holder 9 is provided with an upwardly directed arm 12 containing the slot 13 and is adapted to turn both ways from the middle plane of the shaft 5, being pivoted to the outer end of a socketed member 8 mounted on the lower end of the shaft 5. The shaft 5 consists of a tube of round or oval section and carries two adjustable handles. The shank 16 of the blade 10 is provided with a projection 17 engaging a hole in the hollow holder 9 that is in the form of a tube flattened' on one side and is pivoted on a pin 11 and fixed in position by a clamping-bolt 14. The shank is clamped against the plane face of the holder by a U-shaped clamp 19 having inturned ends 20 engaging behind projections 21 on the holder. The clamp is applied from the front of the holder above the protections, and the latter have sloping faces so that the clamp may be tightened by being driven downwards towards the blade 10. The socket 8, holder 9, and clamp 19 may consist of annealed castings, and any ordinary shaft 5 may be employed.