baber/WOPTO huggingface dataset:
Patent GB-1361869-A (GB)
Title: Method of spreading out tobacco leaves and a device for spread- ing out tobacco leaves by means of this method
IPC: A24B5/14
Filed: 1971-10-19
Abstract: 1361869 Flattening tobacco leaves SKANDINAVISK TOBAKSKOMPAGNI AS 19 Oct 1971 [10 Nov 1970] 48571/71 Heading A2C A method of smoothing moistened tobacco leaves to prepare them for cutting &c consists in causing relative movement between smoothing elements and the leaves in a direction transverse to the leaves, which are guided by being gripped at their stalk and point ends. The smoothing elements may be brushes, soft scrapers, rotating brush or fibre rollers, or compressed air nozzles, and the leaves may be guided manually or mechanically, e.g. by movable belts. As shown, an operator takes a leaf from a table 17 and, holding it by its ends, introduces one lateral edge between brushes 7, 8 mounted on a carriage 2. Operation of a valve 5 by a pedal 6 causes a pneumatic cylinder 4 to advance the carriage towards the operator, during which movement a cam 12 engaging a roller 11 on a lever 9 pivoted to a support 10 causes the brush 8 to approach the brush 7 to apply pressure to the leaf. At the same time a pivoted bracket 13 makes contact with the operator's hands whereby a pressure plate 14 is lifted to enable the operator to place the smoothed leaf on a stack 15. The table 17 can be raised or lowered under control of a pedal 20.
Patent GB-990452-A (GB)
Title: Improvements in or relating to electrical spark discharge devices
IPC: H05B41/32
Filed: 1963-12-10
Abstract: 990,452. Charging and discharging capacitors. IMPULSPHYSIK DR. ING. FRANK FRUNGEL G.m.b.H. Dec. 10, 1963 [Dec. 10, 1962], No. 48744/63. Heading H2H. [Also in Division H1] In an arrangement for discharging a capacitor 5 into a spark gap or discharge tube having 2 electrodes, a conductor 4 is surrounded by ferritic or other magnetic material 7 having high permeability but a low saturation flux, which presents a high impedance to a starting pulse from a circuit 10-15 but low impedance to the discharge of capacitor 5. The circuit 10-15 may comprise a capacitor 11 charged from a supply 10 through a winding 13a of a transformer and discharged by a switch 12 such as a spark gap, thyratron or electron tube whereby the winding 13c charges a capacitor 14 whose voltage is added to that of another capacitor 15 when a spark gap 16 breaks down. A Marx or other circuit may be substituted for the circuit 10-15. The spark gap 15 is preferably enclosed.
Patent GB-1000635-A (GB)
Title: A mobile machine for spraying liquids more particularly for spraying insecticides orthe like on trees
Inventor: PETER JAN WILLEM VAN DEN MUNCK
IPC: A01M7/00
Filed: 1962-12-28
Abstract: 1,000,635. Crop sprayers. P. J. W. VAN DEN MUNCKHOF. Dec. 28, 1962, No. 48802/62. Heading B2F. A mobile machine for spraying insecticides or the like on trees comprises a fan 8 for creating an upwardly directed air current in a substantially vertical plane transverse to the direction of travel c of the machine and a . plurality of spraying nozzles 7 having their axes in a plane substantially parallel to the plane of the air current and spaced therefrom in the direction of travel c, whereby spray in a finely atomized state is caused to float into the upwardly directed air current only when the machine is travelling in the direction c. The spacing of the fan and nozzles is adjustable. A centrifugal fan may be used having suitable guide vanes to direct the air in an upwardly directed stream.
Patent GB-1078298-A (GB)
Title: Improvements in or relating to portable instruments for determining the amounts of particular gases in underground air currents
IPC: G01N33/00
Filed: 1964-12-03
Abstract: 1,078,298. Portable electric gas analysers. R. HœBNER. Dec.3, 1964 [Dec. 5, 1963], No.49134/64. Heading G1N. A portable electric instrument for gas analysis has a pump 8 controlled by a transistorized timer 9, whereby a known volume of test gas is drawn into a measuring chamber 7. The inlet orifice 4 is shaped to receive an analysis tube, if required, for measuring Co and Co 2  concentration. The timer 9 may be controlled by a selector switch to run for different time periods.
Patent GB-1327406-A (GB)
Title: Solid state resonant pulser
IPC: H03K3/57
Filed: 1970-10-19
Abstract: 1327406 Pulse circuits; amplitude modulators WESTINGHOUSE ELECTRIC CORP 19 Oct 1970 [7 Nov 1969] 49541/70 Headings H3R and H3T A solid state pulser circuit for controlling the beam current of a high frequency transmission device e.g. a klystron 17, having the input capacitance Cg + Cs associated with a control electrode resonantly charged and discharged from a supply voltage B<SP>+</SP> via an arrangement comprising a coupling capacitor 56, a resonant charging circuit comprising a plurality of synchronously switched series connected solid state switches Q 1  coupled to a control signal source via a transformer 18, a charge inductor 14 and an isolating diode 50, a resonant discharge circuit comprising a further plurality of synchronously switched series connected switches Q 2  coupled to a further control signal source via a second transformer 36, a discharge inductor 34 and an isolating diode 60. The voltage developed across the input capacitance is employed to continuously turn on and off the device 17 which may be a klystron or a laser crystal modulator. The circuit further comprises a voltage divider 74, 76 coupled to Darlington connected circuits 80, 82; 86, 88 for controlling the operation of a relay 70 having a pair of normally closed contacts 66 and open contacts 68 for connecting cathode 64 to ground or negative high voltage 72 respectively. In operation, a high grid voltage resulting from voltage multiplication the input capacitance by the initial charging is sufficient to turn on relay 70 for coupling the negative high voltage to cathode so that device 17 is switched on and off respectively by the control pulses at 22, 40. During arcing conditions between the grid and body of device 17, the charge on the coupling capacitor 56 is dissipated by discharging through switch chain Q 2  or into an additional protection circuit (Fig. 2, not shown) comprising a bi-polar diode-capacitor peak detector, responsive to the peak-peak excursion of voltage at the junction 57.
Patent GB-1178113-A (GB)
Title: Improvements in or relating to Heat Exchangers
Inventor: COBLEY PATRICK MILO THOMAS
IPC: F28F3/02
Filed: 1965-11-23
Abstract: 1,178,113. Making heat exchangers. ROOTES MOTORS Ltd. 20 Feb., 1967 [23 Nov., 1965], No. 49722/65. Heading B3A. [Also in Division F4] A method of making a heat exchanger of the kind comprising a stack of pairs of sheet metal pressings 10, 11 in face-to-face relation, one set of adjacent pairs of pressings providing between them coolant channels and the two pressings of each pair providing between them air flow passages, which method comprises forming a plurality of separate pairs of pressings 10, 11, each pair having between them a wave or zigzag form secondary element 17, sticking together the pressings and secondary element with adhesive and sticking the pairs together in a stack. The pressings 10, 11 and the element 17 are of aluminium. The adhesive is applied to the surfaces 18 by either silk screen, nozzle, roller or gasket methods of application. The pressings are then brought into contact and the adhesive is lightly cured. One face only of each pair is coated with adhesive where it will contact an adjacent pressing, including the outer surface of the bottom of the channel 19. The required number of units are then stacked, compressed and the adhesive fully cured to provide a radiator.
Patent GB-1162996-A (GB)
Title: Improvements in or relating to valves.
Inventor: JONES ANTHONY WINN
IPC: F16K31/122
Filed: 1966-11-08
Abstract: 1,162,996. Valves. B.R.R. Ltd. 30 Jan., 1968 [8 Nov., 1966], No. 49990/66. Heading F2V. In the flow control valve shown, the presence or absence of fluid from the inlet 11 to the outlet 12 is determined by the relative disposition of a tubular seat member 14 and a conical, hard grade rubber closure member 20, the closure member being firmly held within the valve casing by means of a spider construction 19. Movement of the seat member 14 is achieved by the application of a control pressure to either one of two ports 23, 24, such applied pressure acting on a piston 15, formed integrally with the seat member, and hence effecting the desired movement of the seat member itself. Sealing rings 16, 17 and 18 ensure the absence of metal-to-metal contact between the seat member and various parts of the valve casing. In a modification (Fig. 2, not shown), the valve is formed with a fixed seat (33) which is inclined with respect to aligned inlet and outlet openings (31, 32) respectively, and is adapted to be engaged by a tubular closure member (45) of similar construction to the seat member 14 disclosed above, the closure member being movable within a casing (36) whose axis corresponds to that of the seat aperture and which, together with the closure member, is constructed to permit fluid pressure actuation of the closure member in the manner above described. In a further modification, not shown, the valve casing is constructed by a cylinder having closed ends and radial or chordal ports, one at each end, a fluid actuable tubular member, of the above described type, being movable within the casing between a first position in which one end of the member abuts a sealing ring in one of the casing ends so preventing fluid flow through the valve, and a second position in which the other end abuts a stop spaced from the other casing end, in which position flow through the valve is permitted.
Patent GB-1134255-A (GB)
Title: Improvements in or relating to clip arrangements for pipes, cables, and the like
Inventor: FITZ-GERALD LESLIE GERALD
IPC: F16L3/13
Filed: 1966-11-09
Abstract: 1,134,255. Clip assemblies for pipes. WESTLAND AIRCRAFT Ltd. 9 Nov., 1966, No. 50313/66. Heading E2B. [Also in Division H2] An arrangement for supporting a number of pipes, conduits, cables or the like comprises a number of retaining blocks 13 with lateral projections which slidably engage in bent-over sides 12 of a base 11, and clamping blocks 14. The retaining blocks 13 are of resilient plastics material and after the pipes have been passed between their jaws, the clamping blocks 14 which are of metal, are rocked slightly by tightening the bolts 15 so as to compress the retaining blocks 13 to prevent their jaws opening sufficiently to release the pipes, but not to prevent longitudinal movement of the pipes. The retaining blocks can accommodate pipes of various diameters with their centres at a constant height from the base, and spacing blocks may be arranged between them. They may be nickel-plated or have metal inserts for electrical bonding purposes. Complete assemblies may be mounted one above the other on a single pair of threaded rods, and an intermediate bolt may be used to enable a base 6 be cantilevered out from a supporting member.
Patent GB-1182718-A (GB)
Title: Silicon - containing Amino - Phosphonates and process of Manufacture
IPC: C07F7/18
Filed: 1967-11-06
Abstract: 1,182,718. Glass fabric laminates. J. P. STEVENS & CO. Inc. 6 Nov., 1967 [30 Dec., 1966], No. 50322/67. Heading B5N. [Also in Division C3] Superimposed layers of glass fabric, finished with a silicon-containing aminophosphate of general formula (where a is 0 or 1, m is 0 to 3, n is (3-m), R and R<SP>1</SP> are alkyl, alkoxyalkyl, aralkyl or aryl, R<SP>2</SP>, R<SP>3</SP> and R<SP>4</SP> are hydrogen or alkyl, R<SP>5</SP> is hydrogen, alkenyl, alkyl, aralkyl or aryl, R<SP>6</SP> is a C 1 -C 6  alkyl or alkenyl group, Q is hydrogen, alkyl, aryl or -CR<SP>2</SP>R<SP>3</SP>-CHR<SP>5</SP>P(O)(OR<SP>6</SP>) 2  and Z is one or more unsubstituted or alkyl-substituted methylene groups which may be interrupted by O, S, or secondary or tertiary amino N) are impregnated with a thermosetting resin/hardener or catalyst blend and compacted under heat and pressure. The finish may be applied to the glass cloth from an aqueous dispersion and cured at elevated temperature: specified finishing compounds are diethyl 1 - [3 - (triethoxysilyl)propylamino] propylphosphonate, diethyl 1 - [3 - (triethoxysilyl)- propylamino] - 2 - butenylphosphonate, tetraethyl N - [3 - (triethoxysilyl)propyl] iminodiethylene-diphosphonate, and diethyl 2{N-[3- (trimethoxysilyl)propyl] anilino } ethylphosphonate. The thermosetting resin may be an epoxy resin or a polyester, e.g. maleic anhydride/ phthalic anhydride/propanediol.
Patent GB-1196006-A (GB)
Title: Improvements in and relating to Door Stays.
Inventor: RAYBONE CYRIL ARTHUR
IPC: E05C17/20
Filed: 1967-11-09
Abstract: 1,196,006. Stays with bracket engaging means. C. A. RAYBONE. 8 Nov., 1968 [9 Nov., 1967], No. 50938/67. Heading E2F. A stay for hinged doors, gates, casements, lids and covers comprises a stay bar 10 located in a bracket 15 having upper and lower horizontal members 15a and 15c spaced apart to allow the stay bar 10 to slide lengthwise between them while resting on the lower member 15c, the bar 10 having one or more substantially vertical shoulders 10b near its free end so arranged that when the door 12 is sufficiently opened the shoulders 10b will drop on passing through the bracket 15 to engage with the end of the lower member 15c and thus prevent reverse sliding of the bar 10 until the shoulders 10b are lifted by raising the bar. Preferably the bracket 15 consists of a top wall 15a, depending sides 15b and inwardly turned lower portions 15c, and is pivotally attached to a mounting device 16 screwed to the door frame 18. The fixed end of the stay bar 10 is pivoted to a bracket 11 screwed to the door 12, and the free end is cranked at its extremity 10c to prevent total withdrawal of the bar 10 from the bracket 15. In one embodiment, a vertical rod 14 is attached to the stay bar 10 near its fixed end to enable the door to be closed by lifting the bar slightly and disengaging the shoulders 10b. In another embodiment (not shown) the lifting and disengaging is performed by means of a cord, attached to a lever depending pivotally from the 'bracket 15, and extending along the stay bar 10 and passing through a loop depending from the bar near its fixed end, such that a pull on the cord causes the lever to bear against the underside of the bar 10 and raise the shoulders 10b.
Patent GB-1113443-A (GB)
Title: A semiconductor device
Inventor: GUNN JOHN BATTISCOMBE
IPC: H03K3/02
Filed: 1965-05-21
Abstract: 1,113,443. Semi-conductor devices. INTERNATIONAL BUSINESS MACHINES CORPORATION. 21 May, 1965 [12 June, 1964], No. 50947/67. Divided out of 1,113,442. Heading H1K. The subject matter is identical with that of Specification 1,113,442 but the claims relate to field intensifying arrangements, viz. arrangements in which an electric field set up in a body is higher in one region than in others. Highfield travelling domains are initiated preferentially in such regions. The field intensification may be produced by using a body with locally reduced cross-section, as in Fig. 13b, or locally increased resistivity and/or by the use of a trigger electrode (which may be a capacitive probe) to produce in the body a locally increased field.
Patent GB-511427-A (GB)
Abstract: 511,427. Workmen's time recorders. ALDERTON, C. E. N., and BARRY, W. T. Feb. 14, 1938, No. 4493. [Class 106 (iv)] A record card for use dn a workmen's time recorder is provided with two or more groups of spaces 10, 11 for receiving the time markings, each group having a respective positioning edge, the initial row X of one group 10 being situated the same distance from its positioning edge 2 as the initial row Y of the other group 11 is from its positioning edge 1. The card is intended for use in a machine in which ,an abutment engages the positioning edge at the first insertion and a hole is punched in the card during the first marking, this hole serving to position the card at the second insertion. The two groups of markings may be on the same side of the card, as shown, or on opposite sides, but in neither case do the groups overlap.
Patent GB-1245743-A (GB)
Title: Alkynyl lactams
Inventor: DAHLBOM JOHN RICHARD
IPC: C07D207/27
Filed: 1967-11-09
Abstract: 1,245,743. Alkynyl lactams. ASTRA AB. 15 Nov., 1968 [9 Nov., 1967], No. 51146/67. Heading C2C. The invention comprises compounds of formula wherein R is C 3-6  alkylene (straight or branched) with the proviso that the group contains at least 5 ring members; A is ethylene or C 2-3  branched alkylene; Y is H or a group - B-Am, where B is C 1-3  alkylene (straight or branched) and Am is a mono or di-C 1-5 -alkylamino or mono- or di C 2-5 -alkenylamino group, or a pyrrolidino or piperidino group optionally substituted with 1-4 methyl groups, or is a perhydroazepino or perhydroazocino group, the Am group being connected through its nitrogen atom to group B; and the acid-addition salts of the compounds wherein Y is -B-Am. These compounds are prepared by cyclization, e.g. using Na/EtOH, of compounds of formula wherein X is halo (these starting materials, wherein Y is -B-Am, forming the subjectmatter of Specification 1,245,744. In addition, compounds wherein Y is -CH 2 -Am are prepared from the corresponding compounds wherein Y is H by the Mannich reaction. 4 - Chloro - N - (1 - methyl - 2 - propynyl) butyramide and 4 - chloro - N - (1,1 - dimethyl-2- propynyl) butyramide are prepared by reaction of 4-chlorobutyryl chloride with 1-methyl-2- propynylamine or 1,1 - dimethyl - 2 - propynylamine respectively. The inventive compounds, wherein Y is -B-Am, and the acid-addition salts thereof, are said to be oxotremorine antagonists and may be made up with carriers into pharmaceutical compositions. Routes of administration are not specified.
Patent GB-1253800-A (GB)
Title: Thermally insulating panels
Inventor: FARFALETTI-CASALI FLAVIANO
IPC: G21C11/08
Filed: 1970-10-28
Abstract: 1,253,800. Reactors. EUROPEAN ATOMIC ENERGY COMMUNITY. 28 Oct., 1970 [18 Nov., 1969], No. 51313/70. Heading G6C. In a gas-cooled nuclear reactor prestressed concrete pressure vessel, thermal insulation of the vessel inner surface is effected by a cellular metal structure secured to the fluid-tight linear at the surface. The steel sheets 6, spaced apart, are packed into the cells formed by the strips 4. The sheets are threaded on to the pins 2 and secured by the nuts 3. The strips 4 are interconnected by the bridging members 5 which are threaded on pins 2. The sheets 6 incorporate indentations 8, 9 which permit thermal expansion. In a modification, the sheets 6 are replaced by a single element of porous alumina or of alternate sheets of metal sheeting and woven fabric.
Patent GB-1129808-A (GB)
Title: Improved keys for musical wind instruments
IPC: G10D9/04
Filed: 1965-12-06
Abstract: 1,129,808. Valves. P. S. PROLL. 6 Dec., 1965 [1 June, 1965], No. 51576/65. Heading F2V. [Also in Division G5] The key 6 of a musical wind instrument comprises a finger pad 12, a valve portion 11 for closing a port 5 in the body 2 of the instrument, and an intermediate portion 7 connecting pad 12 and valve 11 and from which extends a resiliently flexible tongue 15 to restore the key to the part-closed position after operation; the pad 12, valve 11, intermediate portion 7 and tongue 15 all being constituted by a single unitary moulding of a plastics material. The two body halves 3 and 4 of the instrument, e.g. a toy clarinet, carry respectively integral confronting proportions 16, 21 each pair of which form a housing for the pivot pin 13 which may be integral with and project laterally from the intermediate portion 7 of the key. The tongue 15 also serves to retain the pivot pins within the housing after they have been inserted through recesses in the walls of the projections. The key may be provided with two integrally formed tongues, Fig. 9 (not shown), and a plurality of keys may be formed as a single unitary moulding, Fig. 10 (not shown), and the several keys assembled together in the instrument in one operation.
Patent GB-1410406-A (GB)
Title: Valves
IPC: F16K17/30
Filed: 1973-11-08
Abstract: 1410406 Valves BERINGER-HYDRAULIK GmbH 8 Nov 1973 [9 Nov 1972] 51847/73 Heading F2V [Also in Division G3] An hydraulic self-closing valve for connection to an hydraulic rotary unit or a lifting piston and cylinder unit H via a port 4, Fig. 1, and to a supply pump P and return line R via a port 5, has a spool 2 which remains in the open position shown for normal fluid flow in either direction. However, in the event of excessive lowering speeds and consequent high flow rate through the valve to the line R, due, e.g. to a fracture in the pump line, it moves against the action of spring 3 towards a closed position thereby progressively throttling the flow via partcircular recesses 7 therein. The consequent rise in the pressure differential across the spool 2 is communicated through passages 10, 12 to opposite ends of an auxiliary spool 8 which, when the differential reaches a predetermined value, moves downwardly to throttle the flow exhausting from spring chamber 16 and thereby dampen the final part of the movement of the spool 2 to its closed position wherein flange 20 thereon abuts a seating 21. The spool 8 carries an 0-ring 17 which co-operates with a seating 22 when the spool 8 is moved to its maximum throttling position. The maximum flow via spool 2 and the minimum flow via the spool 8 are adjustable via screws 6 and 19 respectively. In an alternative embodiment, Fig. 2 (not shown), the auxiliary spool is omitted and the spool (2) has a coaxial passage therein communicating the spring chamber (16) with the port (5), the passage becoming throttled by a fixed needle (25) when spool (2) has moved partway towards its closed position. An additional throttling passage (28) between chamber (16) and port (5) may be provided in the valve housing, the degree of throttling being adjustable by a screw (29).