baber/WOPTO huggingface dataset:
Patent GB-506505-A (GB)
Abstract: 506,505. Cash registers. NATIONAL CASH REGISTER Co. Nov. 27, 1937, No. 32787. Convention date, Dec. 3, 1936. [Class 106 (i)] Machine release. The motor or release key of a cash register or similar accounting machine is adapted to return to home position immediately after depression to initiate a single operation, or to be locked in depressed position to permit any desired number of successive machine operations without interruption. The motor key 11 is carried by a plate 12 slidably mounted on a guide plate 16 by studs 14, 18 and slots 13, 17. If the key be depressed axially and released, it will release the machine and be immediately restored by a spring 20. On the other hand, if the key be depressed axially and then rocked counterclockwise, it will be retained by the engagement of stud 18 within an offset part of slot 17 and the machine will operate continuously until the key is manually freed and restored by the spring. The release shaft 37 of the machine is urged counterclockwise by a bar 39 connected to the motor switch and clutch, but is normally restrained by the abutment of a hook-shaped arm 36 with a stud 34 on an arm 32. Upon the depression of the key, the stud 34 is raised above the hooked end of the arm 36 and the machine is released. For this purpose, the arm 32 is connected to the plate 12 through a lever 30, 25 and a lever 23 slotted to engage a stud 21 on the plate, the lever 23 being resiliently mounted on the lever arm 25 to reduce the stresses in the parts due to rapid depression of the key. Towards the end of a machine operation, the release shaft is restored clockwise by a stud 45 projecting from a gear 46 into the path of a lever 44, 42. If the motor key is now in raised position, the stud 34 will return to the position shown to retain the release shaft and arrest the machine. Alternatively, if the motor key is held depressed, the stud 34 will remain in raised position and the release shaft will return counterclockwise to permit continued operation.
Patent GB-1503249-A (GB)
Title: Semiconductor devices
IPC: H01L27/08
Filed: 1976-12-06
Abstract: 1503249 Integrated circuits INTERNATIONAL BUSINESS MACHINES CORP 6 Dec 1976 [12 Dec 1975] 50821/76 Heading H1K A CMOS device comprises a region 20 of  crystalline damage formed by ion bombardment, to inhibit parasitic bipolar transistor action between the doped regions 12, 15-18 of the MOS transistors 10, 14. The damaged region may be formed between the MOS transistors 10, 14, or under the source and drain regions of one or both the MOS transistors 10, 14. The damage may be caused by bombardment with non- doping ions such as Si, N, Ge, Au, H or Sn. The substrate 18 may be silicon and the electrode material aluminium.
Patent GB-1254714-A (GB)
Title: Improvements in ships accommodation ladders which are also capable of use as gangways
Inventor: THOMSON ALLAN MATHIESON
IPC: B63B27/14
Filed: 1968-10-25
Abstract: 1,254,714. Gangways. M. A. THOMSON. 18 Sept., 1969 [25 Oct., 1968], No. 50855/68. Addition to 1,024,570. Heading B7J. [Also in Division E1] A ship's accommodation ladder, which is capable of being used as a gangway, as claimed in Claim 1 of Specification 1,024,570, is given extra support by one or more movable auxiliary supports 18 over which a rope 25 from the lifting device 12 can pass when the ladder is in use, the rope passing round, or being attached to two or more support bridles 4, 5 and being supported between each by a support 18. The ladder is pivoted to a platform 10 reached from the deck by a ladder 16. The ladder can be stowed on inboard supports (28, 29), Figs. 2, 3 (not shown). The rope 25 passes around double pulleys at the top of the davit 12 and on the bridle 4, and then extends as a single length to any further bridle.
Patent GB-1069245-A (GB)
Title: A recharging stand for recharging the battery of a mechanical toothbrush
IPC: H02J7/00
Filed: 1964-12-14
Abstract: 1,069,245. Brushes. J. R. AYMAR. Dec. 14, 1964, No. 50908/64. Heading A4K. [Also in Division H2] A mechanical tooth brush has a nickel cadmium battery (14) and external recharging contacts (53<SP>1</SP>, 54<SP>1</SP>), for connection to contacts provided in a central cavity in a re-charging stand (see Division H2). Motor (15) drives pinion (16) and gear (17) to oscillate removable brush head (19).
Patent GB-1092691-A (GB)
Title: High precision closed loop servo system
IPC: G05B19/23
Filed: 1964-12-14
Abstract: 1,092,691. Programmed machine tool control. FUJITSU Ltd. Dec. 14, 1964 [Dec.14, 1963],  No. 50915/64. Heading G3N. [Also in Division G4] A movable member of a machine control system is positioned by an hydraulic motor controlled by an hydraulic valve positioned by an electric pulse motor the direction of rotation and rotation of which is controlled by a driving means, signals from a movement detector, corresponding to the movement and direction of movement of the member, being fed back to the driving means to prevent movement of the member in excess of that determined by the driving means. As shown, Fig. 1 a control unit 11 comprising a reader for a punched or magnetic tape, or a manual keyboard, provides positive or negative control pulses on lines 12, 13, respectively, to a motor driving circuit 14. The motor driving circuit comprises a reversible ring counter and an amplifier, the output of which on lines 18, 19 controls the operation of an electric pulse motor 17 Fig. 5 (not shown). The rotation of a shaft 21 of the motor 17 positions an hydraulic rotary pilot valve 51 determining the supply of fluid to an hydraulic motor 53, Fig. 3 (not shown). The motor 53 rotates at a speed and in a direction corresponding to the angle of rotation of a core 58 of the hydraulic valve 51. A shaft 66 of the motor 53 is coupled to a control shaft or feed screw 81 of a machine 82 through a gear-box 83. The shaft 81 drives a table 84 through a nut 85 and the extent of table movement is derived as a plurality of pulses, from a photo-electric device 86, having a polarity indicative of the direction of movement, Fig. 9 (not shown). The movement pulses are fed to a synchronizer 87 along lines 88, 89. The synchronizer Fig. 12, comprises independent branches for the positive and negative pulses having a common clock pulse, at higher rate than the movement pulses, on a line 91 from the control unit 11. The clock pulse on line 91 is phase shifted by half-a-cycle from the control pulses. Bi-stable circuits 122, 133, enabled by clock pulses on line 91, together with a NOT-circuit 121 and an AND-gate 124 are connected between the input line 88 and an output line 93. An output pulse, has a duration of one clock period and occurs during the clock period succeeding that in which the input pulse terminates. The synchronizer prevents the simultaneous presentation of control and movement pulses to the reversible ring counter of the motor driving circuit 14. It is stated that a differentiating circuit 131 can be utilized at the input to the circuit 14 to shorten the pulse duration. In operation, a control pulse causes the reversible ring counter to count one and rotate the pulse motor 17 one step, the motor 53 moves in correspondence and positions the table 84 so that a feedback pulse is produced by the device 86 which, through the synchronizer 87 causes the counter to return to zero.
Patent GB-1217548-A (GB)
Title: Improvements in calendars, particularly in drawing calendars for the production of webs of film
IPC: B29C55/06
Filed: 1968-10-28
Abstract: 1,217,548. Calendering, stretching and embossing. SCHLOEMANN A.G. 28 Oct., 1968 [30 Nov., 1967], No. 51038/68. Heading B5B. A calender 1 is provided with a following stretching device (rolls 28-32) and embossing device (rolls 19, 20) characterized in that each device is lodged as an independent constructional group in a carriage (2 and 3 respectively) which can travel between an idle position and a working position located close to the calender, the two carriages being mounted vertically one above the other for parallel running and on the lower carriage, at the level of the outlet of the film from the calender, a roll 18 is arranged, projecting beyond the carriage wall at the calender end and which serves as a deflecting roll for the film. As shown, carriage 3 runs on rails 15 and the film passes through driven rolls 19, 20 (see the dotted line) when the carriage 2 which is on top of carriage 3 is in the idle position (not shown) against stop 17. Rolls 22-25 act for cooling. In the working position shown, the film follows the heavy-line path through rolls 26, 27 which are braked, 28-32 which run free and 22 which is driven.
Patent GB-1116477-A (GB)
Title: Method of heating co-containing gases without substantial co reversion
IPC: C01B32/50
Filed: 1966-11-15
Abstract: Carbon monoxide containing gas, in contact with a material capable of catalysing the reversion of CO to CO2 + C, is heated up through the temperature range conducive to carbon monoxide rfeversion (900 DEG to 1300 DEG  F.) in a period of time less than 1 second by reacting a sufficient portion of the gas with oxygen.  The carbon monoxide containing gas is preferably preheated to below 900 DEG  F. and the oxygen containing gas is preferably preheated to 1000 DEG  to 1500 DEG  F.  The carbon monoxide containing gas may be reacted with an amount of oxygen by eitherwithdrawing a portion of the CO gas, reacting with O2 and remixing the exhaust gases with the remainder of the CO containing gas, or the O2 may be mixed with the whole of the CO gas, reacting with enough of it, in the presence of the rest, to raise the temperature to the required level.
Patent GB-1322804-A (GB)
Title: Copolymerisable composition
IPC: C08G63/52
Filed: 1970-10-28
Abstract: 1322804 Ester-acids PRODUITS CHIMIQUES PECHINEY-SAINT-GOBAIN 28 Oct 1970 [30 Oct 1969] 51199/70 Heading C2C [Also in Division C3] Oligo esters having maleic acid end groups (i.e. containing maleic groups each having a free acid group ) are produced by reacting maleic anhydride with at least one polyhydroxylated compound in the proportion of one molecule of maleic anhydride per hydroxyl group of the polyhydroxylated compound at a temperature ranging from 50‹ to 100‹ C. until the reaction mixture has a hydroxyl number up to 20. In the examples, 2,2,4-trimethyl-1,3-pentanediol, neopentyl glycol, trimethylol-propane and glycerol are reacted with maleic anhydride.
Patent GB-1398089-A (GB)
Title: Process for the catalytic dimerisation of acrylonitrile
Filed: 1971-11-08
Abstract: 1398089 Dimerisation of acrylonitrile IMPERIAL CHEMICAL INDUSTRIES Ltd 31 Oct 1972 [8 Nov 1971] 51720/71 Heading C2C Acrylonitrile is dimerized to dicyanobutenes, especially 1,4-dicyanobutenes by heating it, in the absence of hydrogen, with a bismuth catalyst. The bismuth catalyst may be elemen. tary bismuth, an inorganic bismuth compound such as a bismuth salt, e.g. BiCl 3 , BiBr 3 , bismuth nitrate or bismuth carbonate, or bismuth oxide or hydroxide; or an organic bismuth compound, e.g. BiR 1 R 2 R 3  where R 1 , R 2  and R 3  are hydrocarbyl radicals, e.g. alkyl, cycloalkyl, aralkyl or aryl and in particular bismeth triphenyl, bismuth triethyl and bismuth tricyclohexyl The bismuth hydrocarbyl catalyst may be pre-activated by heating in a stream of hydrogen. The bismuth catalyst may also be used in admixture with transition metal catalysts by mixing the bismuth compound and the transition metal compound, e.g. molybdenum carbonyl, palladium acetate, ruthenium acetylacetonate, cobalt acetate or cuprous chloride and pre-reducing in a stream of hydrogen. The 1,4-dicyanobutenes may be hydrogenated to adiponitrile and either directly, or in two stages via adiponitrile to hexamethylenediamine.
Patent GB-1170086-A (GB)
Title: Improvements in or relating to pulse repeating circuits.
Inventor: FRITSCHI WALTER WILLIAM
IPC: H04Q1/36
Filed: 1966-11-23
Abstract: 1,170,086. Automatic exchange systems. WESTERN ELECTRIC CO. Inc. 23 Nov., 1966 [24 Nov., 1965], No. 52367/66. Heading H4K. A pulse repeating circuit comprises two relays, the first of which responds to an input pulse by completing a self-holding path and by enabling the second relay which breaks the holding path of the first relay, and output means enabled during operation of the first relay to provide an output pulse. In the loop signalling arrangement shown, when the dial contacts 30 are closed, a path exists from earth via brake contacts of a relay 3A2 (which is the second relay), upper winding of the first relay 3A1 make contacts of a relay 3CS, an upper winding of a transformer 31, conductor T, contacts 30, conductor R, the lower winding of the transformer 31, make contacts of the relay 3CS, the lower winding of relay 3A1, break contacts of the relay 3A2 and a resistance lamp 32 to negative battery. The relay 3A1 responds enabling make contacts 3A1 in the outgoing loop T1; further make contacts 3A1 completing a holding path from earth via make contacts 3A1, upper winding of relay 3A1, make contacts 3A1, break contacts of relay 3A2, a resistance 33, the lower winding of the relay 3A1, make contacts of 3A1 and lamp 32 to negative battery. The relay 3A1 is thus maintained, enabled even if the contacts 30 open again. The relay 3A1 also enables the second relay 3A2 via further make contacts 3A1. When relay 3A2 pulls up it opens break contacts 3A2 in the holding path of the relay 3A1, allowing it to release after a minimum time equal to the sum of the operate time of the second relay 3A2 and the release time of the relay 3A1. The relay 3A1 will, however, be maintained if the dial contacts 30 remain closed. A variable resistor 36 in parallel with the second relay 3A2 ensures that it is slow to release and the break contacts of this relay which are to the left of the relay 3A1 in the Figure are thus maintained open for a predetermined time ensuring a sufficient pause between successive operations of the first relay 3A1. Thus pulses are repeated to the outgoing loop with at least minimum break and make durations. The relay 3CS is controlled from the remote end and operates contacts 3CS in the loop to reverse the current for supervisory and charging purposes. Other embodiments for bridged impedance trunk circuits and " E " " and " M " signalling are described.
Patent GB-1445167-A (GB)
Title: Filter apparatus comprising a screen changer
IPC: B29C48/03
Filed: 1973-11-12
Abstract: 1445167 Filter screen changer BERLYN CORP 12 Nov 1973 [20 Nov 1972] 52441/73 Heading BID [Also in Division B5] A slidable screen holder plate 18 in a filter apparatus for heat softened plastics is sealingly engaged by a sleeve 42 urged against the plate 18 (which holds a breaker plate 24 and a screen 20) by pressure of a hollow member 48 held by bolts 62. Slide plate 18 is centred by bolts 28 and 30 in slot 16, and on release of bolts may be withdrawn to change mesh screen 20. Breaker plate 24 has countersunk holes the outer ones being inwardly inclined (Figs. 2 and 3 not shown). A second assembly of bolts 86 and hollow members 80 and 86 retains the slide plate on the downstream side.
Patent GB-1404937-A (GB)
Title: Liquid atomising devices
IPC: F23D11/10
Filed: 1971-11-13
Abstract: 1404937 Spraying nozzles LUCAS INDUSTRIES LTD 30 Oct 1972 [13 Nov 1971] 52819/ 71 Heading B2F [Also in Division F4] A liquid atomising nozzle, e.g. for use in the burners of a gas turbine engine, comprises tubular bodies 1, 4, the body 4 having orifices 6 (only one of which is shown), through which liquid fuel passes to flow along the frusto conical mixer surface 10 of a sleeve 8 welded at 9, the fuel mixing with air from the passage 2. The orifices 6 are angled to impart a rotary motion to the spray, which is conical in shape. The rotated liquid discharged is directed inwardly by an annular lip 11 and the body 1 is located within a ring of air swirler blades, not shown.
Patent GB-1434579-A (GB)
Title: Safety harness device
IPC: A47D15/00
Filed: 1973-11-15
Abstract: 1434579 Vehicle safetly harness HAPPICH GmbH Gebr 15 Nov 1973 [18 Nov 1972] 52979/73 Heading A3V A vehicle safety harness for children which allows the child to be released easily comprises a body belt 5 connectable to the vehicle through belts 3 equipped with coupling means 2 which are easily releasable by members disposed at the sides of the wearer so as to be operable in the same action as grasping the child. The coupling means may connect the belts 3 to the body belt as shown or to the vehicle. As shown the coupling means comprise hooks whose free ends constitute the release members. They may also be connected together by a cable so that only one release member need be operated. The free ends of the body belt are adjustably secured together, e.g. by filamentary hook and loop strip fasteners, and adjustable shoulder belts 7 may be provided.
Patent GB-529840-A (GB)
Abstract: 529,840. Regulating air supply and draught in ranges. RADIATION, Ltd., and PICKARD, J. C. April 27, 1939, No. 12598. [Class 126] In a solid fuel cooking range having a closed or closeable combustion chamber improved means are provided for controlling the combustion therein. As shown in outlet and air inlet ducts a, c there are provided respectively a butterfly damper e and a circular register f mounted coaxially and simultaneously closed and opened together by a handle g. Alternatively, Figs. 4 and 5 (not shown), the register is connected to.the butterfly damper by linkage and is mounted behind the ash pit on an axis parallel to that of the latter damper.
Patent GB-1298062-A (GB)
Title: Improvements in or relating to battery charging arrangements
Inventor: BRIGGS LEONARD ALBERT
IPC: H02J7/14
Filed: 1968-11-11
Abstract: 1298062 Automatic voltage control BUTEC Ltd and OLDHAM & SON Ltd 10 Nov 1969 [11 Nov 1968] 53443/68 Heading G3R [Also in Division H2] A battery 1 is charged by the rectified output of a variable speed alternator 2 whose field winding (not shown) is controlled by a conventional transistor voltage regulator 3 to maintain the battery voltage at a value determined by the setting of a potential divider R2, VR1, R3, the charging operation being further controlled by a temperature compensation and protection circuit 4 controlled by a thermistor T responsive to the battery temperature or the regulator temperature, such that the divider portions above and below the tapping point are respectively shunted by transistors T3, T4 to change the regulator voltage setting as the temperature increases or decreases, whilst a fault condition corresponding to the temperature reaching a predetermined upper limit or the thermistor T becoming open-circuited causes switch-off of respective normally-on transistors T5, T6 to turn off a transistor T7 and so de-energize a relay 10 whose contacts S1 open to disconnect the D. C. supply to the regulator 3. Temperature compensation Increase in battery temperature causes decrease of the thermistor resistance to turn on the transistor T3 at a predetermined voltage, the shunting of R2 and the corresponding part of VR1 by T3 reducing the regulator setting and hence the charging current to the battery. Decrease in battery temperature turns off transistor T3 and subsequently turns on transistor T4 to shunt R3 and the corresponding part of VR1, thus increasing the regulator setting and the battery charging current.  Protection operation When the battery temperature reaches a predetermined upper limit, the decreased thermistor resistance reduces the potential across resistors R8, R9 to a value at which transistor T5 is turned off to turn off the transistor T7 via the transistor T6 which is normally held on by forward biasing of a diode D5. If the thermistor becomes opencircuited, the diode D5 is reverse biased to turn off the transistor T6 and hence the transistor T7. A lamp 11 indicates low alternator output voltage or operation of the circuit 4 due to the battery overheating or the thermistor becoming open-circuited. The relay contacts S1 may be inserted in the charging circuit of the battery, in which case two warning lamps are provided for respectively indicating low alternator voltage and operation of the circuit 4. A bleed resistor may be connected across the relay contacts to trickle charge the battery when the contacts are open.
Patent GB-1385277-A (GB)
Title: Method of placing and firing explosive charges in marine seismic  prospecting
IPC: F42D3/06
Filed: 1972-11-20
Abstract: 1385277 Seismic charges IMPERIAL CHEMICAL INDUSTRIES Ltd 1 Oct 1973 [20 Nov 1972] 53500/72 Heading F3A [Also in Division H4] An explosive charge 19 primed with a delay electric detonator is projected to its required explosion depth for marine seismic prospecting by establishing a downward water stream through conduit 10 (Fig. 1) and along a path 35 extending from the submerged conduit end through the marine water mass, and inserting the charge into the water stream. As shown in Fig. 3 the charge comprises TNT/ammonium nitrate powder in a sealed container 23 with a plastic nose cone 26 and a pocket 28 accommodating the detonator. The detonator wires are connected to brush contacts 33 which engage electrodes 21, 22 (Fig. 2) in the conduit for initiating the charge. A rotary turret 17 (Fig. 1) is used for loading charges in succession into conduit 10. A foil 34 shorts the contacts 33 before loading.
Patent GB-1147347-A (GB)
Title: Clamp for securing shuttering for a rectangular column
Inventor: WILLIAMS CHESTER IRVING
IPC: E04G13/02
Filed: 1966-11-29
Abstract: 1,147,347. Column shuttering. C. I. WILLIAMS. 29 Nov., 1966 [9 Dec., 1965], No. 53501/66. Heading E1S. A clamp for shuttering for casting rectangular columns comprises two pairs of angle irons 17, 18 and 19; 20, the members of each pair being pivoted together at 22 by the horizontal flanges and engaging one another by the vertical flanges to hold them at right angles to one another and the pairs engage one another by serrations 23 to form a rectangular frame. The angle irons are pivoted together so that their horizontal flanges are coplanar.
Patent GB-1348398-A (GB)
Title: Production of poly-epsilon-caprolactones
IPC: C08G63/82
Filed: 1971-11-18
Abstract: 1348398 Preparing poly-#-caprolactone DEUTSCHE GOLDUND SILBER-SCHEIDEANSTALT 18 Nov 1971 [18 Nov 1970] 53533/71 Heading C3R A process for the production of a high molecular weight poly-#-caprolactone with an average molecular weight in excess of 20,000 comprises polymerizing monomeric, optionally substituted, #-caprolactone in the absence of compounds containing active hydrogen and in the presence of at least one catalyst which is an organic compound of tetravalent tin of the general formula or a polymeric organotin compound with repeating units of the general formula in which R is a linear or branched C 2-12  alkyl group, X is O or S, R<SP>1</SP> is a linear or branched C 1-14  alkyl group, in addition to which two of the radicals R<SP>1</SP> can also be replaced by an optionally branched alkylene group which, together with the Sn and the two X atoms, forms a 5-membered to 7-membered ring, R<SP>2</SP> is an optionally branched alkylene group of 4-12 carbon atoms, a cycloalkylene or an arylene group and n is 0 or an integer from 1 to 3 inclusive. The examples describe polymerizing #-caprolactone in the presence of dibutyltin ethylene glycolate, dibutyltin-1,3-butylene-glycolate, a polymeric compound prepared by condensing dibutyl tin oxide with 1,6-hexane diol, tintetraoctyl metcaptide, polymeric butyl stannic acid, dibutyltindilauryl mercaptide, tintetralauryl mercaptide, tributyltinmethylate, tintetrabutylate and tintetramyristylate.
Patent GB-1388349-A (GB)
Title: Cementing compositions and concretes and mortars derived  therefrom
IPC: C04B24/26
Filed: 1972-04-13
Abstract: 1388349 Curing cement compositions IMPERIAL CHEMICAL INDUSTRIES Ltd 14 March 1973 [13 April 1972] 53580/73 Heading C1H A cement composition initially containing an aqueous dispersion of a copolymer derived from an ethylenically unsaturated carboxylic acid and one or more other vinyl monomers is cured, after initial setting, at 40‹ C. or higher. Specified acids are acrylic, methacrylic and itaconic whilst monomers are acrylates, methacrylates, styrene and butadiene. Sand, gravel and fibres can be added for concrete.