baber/WOPTO huggingface dataset:
Patent GB-1473889-A (GB)
Title: Substituted phenylureas their preparationand their herbicidal compositions
IPC: C07C239/00
Filed: 1974-07-29
Abstract: 1473889 Substituted phenylureas CIBAGEIGY AG 29 July 1974 [30 July 1973] 33411/74 Heading C2C Phenylureas of general Formula I wherein R 1  represents H or Cl; R 2  represents an ethyl, isopropyl, or tert-butyl group may be prepared by reacting an isocyanate of Formula II with dimethylamine or by reacting a compound of Formula III with chlorine or with a chlorine releasing agent, e.g. SO 2 Cl 2 . 3-Isopropylphenylisocyanate is prepared by phosgenation of 3-isopropylaniline. Herbicidal compositions comprise a compound of Formula I together with a carrier and/or distributing agent.
Patent GB-348101-A (GB)
Title: Rubber articles and method of making same
IPC: C08J5/02
Filed: 1929-11-04
Abstract: Rubber articles are formed from aqueous dispersions in substantially their final shape and washed with a non-solvent for rubber such as water prior to drying and vulcanizing.  The freshly formed article may be treated with a coagulant liquid prior to washing, and the washing water may if desired be hot.  The article may be formed in layers with a washing out of soluble constituents between each layer deposition.  The washing liquid may be applied as a fine spray or used in a counter flow immersion system.  The washing is preferably continued until the specific conductance of the washing water has decreased to about 5 X 10-6 mhos.  In certain cases tap water may be used in place of distilled water.
Patent GB-1280875-A (GB)
Title: Improvements relating to electrical display devices
Inventor: SHARPLESS GRAHAM TREVOR
IPC: G09G3/32
Filed: 1969-07-04
Abstract: 1280875 Matrix displays MULLARD Ltd 28 May 1970 [4 July 1969] 33771/69 Index G4H 1A 1B 3C 6A 6B 6E 7B 9E 13D 14B In a display device comprising a two dimensional matrix of light emitting elements C at the intersections of crossed arrays of column and row conductors, the elements being energized at one potential and maintained at a lower potential, means which apply an energizing signal for a row dwell time to each row successively and means which sequentially apply energizing signals to selected columns during each dwell time thereby energizing selected elements in each row, the column energizing signals are applied for less than the dwell time and are then replaced by bias signals sufficient to maintain energized elements illuminated. The energizing means comprise shift registers RSR and CSR which actuate transistors Tr, Tc through which potentials are applied to the conductors. When the transistors are non-conductive a bias signal is applied across all of the elements. The short duration of the column signals allows the register to be filled with data from a character generator fed from a recirculating store which receives data from a keyboard, tape reader or computer. To prevent the current through the elements falling when the column signal is removed the limiting resistances R may be divided into two parts and diode D connected between them. The light emitting elements may be glow discharge cells or PN diodes of GaAs or GaAsP.
Patent GB-475839-A (GB)
Title: Improvements in the manufacture of loud speakers for radio receiving apparatus or for other sound reproduction purposes
IPC: H04R9/02
Filed: 1936-12-09
Abstract: 475,839. Making electromagnets. WALKER, I. Dec. 9, 1936, No. 33844. Convention date, Feb. 1. [Classes 83 (ii) and 83 (iv)] [Also in Group XXXIX] Forging-dies.-A loud-speaker for radio receivers or other sound-reproducing apparatus comprises a magnetic field-member constructed of sheet-metal bent to form a substantially rectangular closed loop having relatively spaced front and back parts provided with coaxially arranged apertures, one of which is tapered and into which fits the tapered end of a polepiece having its other end located in the other aperture and means for securing the polepiece in position. In the preparation of the blank, Fig. 2, a sheet 10a provided with slightly undersized holes 13a, 14a is located on a die member 22 provided with pins 23, 24. Upper die members 21 are utilized to produce lips 19a, 20a, Fig. 5, at the opposite edges of the sheet by means of a shoulder 21d on the upper member and a shoulder 22d on the lower member. The sheet is then bent as indicated at Fig. 5, and the overlapping lips 19a, 20a are firmly secured by welding. The holes 13, 14, Fig. 6, are then reamed to the correct size and the hole 13 is given a slight taper. In an assembled loudspeaker, Fig. 1, the tapered centre polepiece 26 is held in position by a flanged cup 15 having holes engaged by pins 12a which are headed over to form a permanent connection. A screw 28 passing through the cup engages in a threaded hole 27 in the centre polepiece. In a modified construction of the magnet frame, Figs. 10, 13, the edges of the blank are formed with co-operating recesses 50, 52, and in addition one edge is provided with dovetail projections 51 adapted to lock with dovetail recesses 53 when the blank is bent to the rectangular form. As shown in Fig. 14, the centre polepiece is inserted from the rear of the magnet frame 12. A threaded sleeve member 56 having a tapered internal surface is secured to the frame 12 and the centre polepiece 26 is held in position by a cap 57 provided with a threaded flange 58.
Patent GB-192875-A (GB)
Title: Improvements appertaining to the head-stocks of lathes
IPC: B23Q1/00
Filed: 1921-12-16
Abstract: 192,875. Smith, A. Dec. 16, 1921. Turning.-A lathe headstock of the type which is adjusted on the bed A by means of screws a, b coacting with a projection f extending between the shears is fitted, after adjustment, with spacing-pieces k, k' secured to the headstock at m so that the headstock may be readily replaced in its correct position after removal.
Patent GB-316071-A (GB)
Title: Apparatus for cleaning the electrodes in electrical gas purifying plants
IPC: B03C3/76
Filed: 1928-11-19
Abstract: 316,071. Zschocke, H. Nov. 19, 1928. Gases, treating electrically.-An apparatus for removing the deposits from the electrodes of an electrical gas purifying appliance comprises a power driven carriage supporting a knocking device in which the propulsion of the carriage is interrupted during each cleaning operation and upon termination of the cleaning operation is continued, while the knocking device is disconnected at the same time, until all the electrodes have been treated, whereupon the carriage is returned to its initial position. A motor 1 drives by means of bevel gearing 2', 3 an intermediate reduction gearing 4 which operates a shaft 11 through a clutch 6. Wheels 14 supported on rails and mounted free on the shaft 11 are driven by the band friction couplings 13. The carriage, on reaching in its forward movement a group of electrodes, is arrested by a stop 33 when the friction couplings 13 slip. At the same time a stop 16 actuates a rod 32 thus engaging a clutch 20 whereby the drive of the motor 1 will be transmitted to a shaft 21. This shaft operates by means of bevel gearings 24, 25 intermediate shafts 27 carrying cams 29 which actuate beating hammers 30. When the knocking is completed the stops 16 and 33 are withdrawn either automatically or otherwise whereupon the operation of the hammers will cease and the carriage will continue its forward movement. When the carriage has reached the end of the series of electrodes a stop (not shown) will operate rods 34, 8, 9 thus engaging clutch 7 and disengaging clutch 6. Motion is thus transmitted to shaft 15 through bevel gearing 2, 3 and reduction gearing, and the carriage will move in the reverse direction. The stop 17, in co-operation with the rod 10, enables the direction of the carriage to be reversed for cleaning the electrodes out of the normal order.
Patent GB-1197108-A (GB)
Title: Heat Actuated Contact Unit for Electrical Fire Alarm Systems
IPC: G08B17/06
Filed: 1968-07-16
Abstract: 1,197,108. Thermal switches. FIRE FIGHTING EQUIPMENT PTY. Ltd. 16 July, 1968 [16 Nov., 1967], No. 33911/68. Heading H1N. A heat-actuated contact unit for a fire alarm system comprises a diaphragm 15, Fig. 2, between two air tight chambers A, B and arranged to close an electrical circuit between contacts 11, 12 under a pressure differential between the chambers A, B due to a fast rise of ambient temperature but which is also operable by a spring 20 released by low melting point solder 24 on a heat transfer cap 18 forming the chamber B. The diaphragm 15 is soldered on a metal sleeve insert 13 which is secured by adhesive together with the cap 18 in a recess of the base 1. In the example one terminal contact 11 engages the sleeve 13 which a second terminal contact 12 is engaged by the diaphragm 15 to close the circuit. The diaphragm 15 may have a plug of low melting point solder for venting between the chambers A and B at higher temperatures when the diaphragm is actuated by the spring 20. In a modification the diaphragm moves a spring arm contact into engagement with a fixed contact.
Patent GB-1192559-A (GB)
Title: Improvements in or relating to Textile Sliver Drafting Apparatus
IPC: D01G21/00
Filed: 1967-07-26
Abstract: 1,192,559. Spinning yarns. MAREMONT CORP. 26 July, 1967 [27 July, 1966], No. 34403/67. Heading D1F. [Also in Division G3] A textile sliver, emerging from an evening unit length are detected and corrected, passes mechanism in which variations in mass per through a store to a drafting mechanism, and the speed of the latter is automatically controlled to maintain the quantity in the sore bzetween predetermined limits. As shown, flat ribbon slivers from cards, 12, 14, 16, 18, driven at constant speeds by a motor 28, are combined by turning bars 13, 15, 17, 19 into a composite sliver S which is drafted by passing through rolls 22, 23, 24, driven at successively higher speeds by motor 28 through a variable speed gear 25. The sliver is finally calendared by rolls 21 before coiling in a can 26. Variations in the mass of the sliver are detected by relative movement of tongue and groove gauging rolls 30, 32 associated with a transducer 38 controlling a variable speed gear 44, and hence the speed of auxiliary drafting rolls 40, 42, to even out the variations. The consequent short term variations in the speed of feed are taken, up by a loop store L the size of which is maintained between predetermined limits on a long term basis by photocells 51, 53, 55, 57 controlling variable speed gear 25 and hence the speed of the main drafting. The mass detector may alternatively utilise light, radio-activity, capacitance, or sound and the quantity in the store may be detected by its weight.
Patent GB-932753-A (GB)
Title: Improvements in or relating to fillers and pigments by treatment with dihydrocarbyl polysiloxane
Inventor: PIERPOINT EDWARD KEITH
IPC: C04B20/10
Filed: 1959-10-12
Abstract: Finely divided, e.g. not more than 25 m , non-alkaline fillers or pigments, e.g. diatomaceous earths, precipitated or aerogel SiO2, fume SiO2 prepared by burning SiCl4, asbestos, red iron oxide or TiO2, are rendered hydrophobic by treatment with a dihydrocarbyl-polysiloxane having a molecular weight not greater than 500 and with 0,001-5%, of an acid.  The acid, which may have a dissociation constant of not less than 1X10-5 and a vapour pressure of not less than 0,2 mm. Hg. at 20 DEG C., may be nitric, hydrochloric, formic, acetic, mono- or tri-chloracetic and can be generated in situ, e.g. by using trimethyl borate or a halogeno-silane such as chlorsilane.  The hydrocarbyl groups in the siloxane may be alkyl, e.g. methyl, ethyl, or unsaturated, e.g. vinyl, alkyl Siloxanes preferred are cyclic hydrocarbyl-polysiloxanes such as octamethyl cyclotetrasiloxane, and dimethyl or methylvinyl polysiloxanes, 1,3,5,7-tetramethyl-1,3,5,7 tetravinyl cyclotetrasiloxane and hexamethyl disiloxane are mentioned.  The filler or pigment is loaded into an incorporator or kettle and the siloxane, e.g. 5-25%, and acid are added together or separately (the acid may be added to the filler before or after the siloxane) followed by stirring or agitation.  Alternatively, the filler or pigment is fluidized and the siloxane and acid are passed into a vessel as a liquid or vapour.  The preferred reaction temperature is 15 DEG -20 DEG C., but the reaction can be accelerated by elevated temperatures.  The treated material can be freed from acid by volatilization, e.g. by blowing inert gas or slight heating. Specification 806,563 is referred to.
Patent GB-1279865-A (GB)
Title: Improvements in and relating to ultrasonic testing apparatus
Inventor: VAINSHTOCK IZMAIL SAMUILOVICH
IPC: G01N29/07
Filed: 1969-07-09
Abstract: 1279865 Measuring delay time VSESOJUZNY NAUCHNO-ISSLEDOVATELSKY INSTITUT ZAVODSKOI TEKHNOLOGII SBORNYKH ZHELEZOBETONNYKH KONSTRUKTSY I IZDELY 9 July 1969 34493/69 Heading G1U [Also in Division H4] In a system for measuring the transit time of an ultrasonic pulse through a specimen 18, e.g. as an indication of the strength of a concrete specimen, crystal-controlled time reference oscillator 1 feeds signals to clock generator 2 and to coincidence circuit 3 to provide at circuit 3 output sync pulses (at 30 to 40 p. p.s.) which trigger oscillator 4 to pulse transducer 5 and which are fed via a switched delay assembly 6 and a delay line 13 to time comparator 14 whose other input is obtained from receiving transducer 15 via preamplifier 16 and amplifier 17. Delay 13 compensates for signal delays inherent in the apparatus. The delay provided by assembling 6 can be set by dials so that comparator 14 provides a signal for energizing lamp 19 if the delay set is equal to or longer than the ultrasonic delay in specimen 18. Assembly 6 comprises a 200 Ás delay 7, a delay 9 of 0-180 Ás in steps of 20 Ás, a delay 11 of 0-18 Ás in steps of 2 Ás and a delay 12 of 0-1À8 Ás in steps of À2 Ás. Coincidence gates 8 and 10 fed with the output of oscillator 1 ensure precise timing of the selected delays. An oscilloscope may be used instead of unit 14 and lamp 19 for the time comparison.
Patent GB-370856-A (GB)
Title: A seating surface for cycle and motor cycle saddles
IPC: B62J1/02
Filed: 1931-12-12
Abstract: 370,856. Saddles. SOC. ANON. L'ACCESSOIRE MOTOCYCLISTE, 51, Rue Vivienne, Paris. Dec. 12, 1931, No. 34529. Convention date, Dec. 12, 1930. [Class 136 (iii).] The top or seat portion of a cycle saddle comprises a shaped metallic member composed of resilient steel laminµ 1a . . 1e which overlap one another in a manner resembling the disposition of the members forming the carapace of certain crustaceans, such as crayfish or lobsters. The laminµ 1a . . 1e may be independently mounted, or may be connected together by articulated members or joints, or by a flexible member, such as a Y-shaped sheet steel member 3, to which the laminµ are riveted at 4. The top is provided with a cover 10 of leather or artificial leather, with or without an interposed layer 11 of felt, and may be supported on a rigid member 6 by springs 12. The rear lamina 1a may be bent up and slitted to form tongues constituting a raised resilient cantle.
Patent GB-645423-A (GB)
Title: Improvements in or relating to electric plug connectors
IPC: H01R13/05
Filed: 1947-12-30
Abstract: 645,423. Two-part couplings. SERTILLANGE, M. Dec. :30, 1947. No. 34565. Convention date, Jan. 29, 1942. [Class 38 (i)] A plug pin comprises a support c to which is secured a plate a having wings a<SP>1</SP>, a2 which are bent round to form semicylindrical contact surfaces, the plate being held by extensions in a groove b in the support c. A rounded projection a<SP>3</SP> on the plate projects beyond the wings to protect them. Slits e in the wings may enhance the contact between the plug and its co-operating socket.
Patent GB-1515970-A (GB)
Title: Axial flow combine harvesters
IPC: A01D41/00
Filed: 1976-08-19
Abstract: 1515970 Axial flow combine harvesters INTERNATIONAL HARVESTER CO 19 Aug 1976 [28 Aug 1975] 34596/76 Heading A1F An axial flow combine harvester comprises a generally cylindrical rotor 32 driven, by an engine 28, within an open-ended rotor casing 30 which is provided at a forward lower portion with a threshing concave 58, at a rearward lower portion with a separating grate 60, and on the upper internal surface thereof with spaced fins 64; the surface of the roller 32 being provided in the region of the concave with spaced helical rasp bars 114 and in the region of the grate with spaced bars 112. Crop material is fed to the annular space between the roller and casing via a conical section 56 of the casing by means of a varied impellor 34 as described in Specification 1475526 and is moved rearwardly by the interaction of the rotating bars 114, 112 and the stationary fins 64. A swirling motion is imparted to material passing to the rear of the rotor 32 by vanes 111 on a hub part 110 of the rotor in an expansion chamber 72 from where the material is discharged to the ground by a terminal beater 54. The concave and gate are adjustably and removably associated with the casing 60 as described in Specification 1475525 and the bearings in which the rotor is mounted are as described in Specification 1475524. The fins 64, shown as spiral, may be circumferential or omitted altogether in the region of the concave 58.
Patent GB-362135-A (GB)
Title: Improvements relating to sound film recording, printing or reproducing apparatus
IPC: G11B7/00
Filed: 1930-11-17
Abstract: 362,135. Photographic printing. INTERNATIONAL GENERAL ELECTRIC CO., Inc., 120, Broadway, New York, U.S.A.-(Assignees of Allgemeine Elektricitats Ges. ; 2, Friedrich Karl-Ufer, Berlin.) Nov. 17, 1930, No. 34619. Convention date, Nov. 15, 1929. [Classes 98 (i) and 98 (ii).] An arrangement for maintaining the illumination of the sound-record track in the reproducing, recording, or printing of sound-record films, comprises a plurality of light sources with means responsive to the failure or reduction of the light from the source in the operative position to bring another light source into that position. On a rotating turret 1, mounted to rotate about a fixed axis 2, are arranged lamps 3, 4, 5, the lamp 3 in the position shown illuminating the sound-record track, through a slit in the screen 6. A plate 7, provided with recesses 8, 9, 10 is connected to the turret 1 and the armature 11 of an electromagnet 12 normally engages in one of the recesses to maintain the turret stationary against the action of a driving spring which tends to turn the turret in the direction of the arrow. The magnet 12 carries two windings 14, 15 arranged normally to generate equal and opposite magneticfluxes in the core. One terminal of each of the lamps 3, 4, 5 is connected, respectively, with a conductive segment 17, 18, 19 and the segment appertaining to the lamp in the operative position is connected to one side of the current supply terminals 16 through a contact brush 20 and the winding 15. The other terminal 16 is connected through the axis 2 to each of the lamps 3, 4, 5. Should the filament of the lamp 3 burn out or the current be reduced below a predetermined value, the flux generated by the winding 15 is reduced and the armature 11 is retracted from the recess 8 against the tension of a spring 13 whereupon the turret is rotated by the driving spring. When the segment 18 comes into contact with the brush 20 the current through the winding 15 again becomes normal and the armature 11 falls off to enter the recess 9, the lamp 4 being then in the operative position. Similarly, in the event of failure of the lamp 4, the lamp 5 is brought into the operative position. The full voltage is not applied to a lamp immediately it is connected to the current circuit. This is effected by the insertion of a resistance 24 in the circuit, when rotation of the turret commences, which resistance is short-circuited by a switch 25 operated by a pin 27 when a lamp comes into the operative position.
Patent GB-442179-A (GB)
Title: Improvements in or relating to domestic fireplaces
IPC: F24B1/182
Filed: 1934-12-04
Abstract: 442,179. Combination ranges. GIBBS, A., 1237, Stratford Road, Hall Green, Birming- ham. Dec. 4, 1934, No. 34776. [Class 126] A combination back-to-back open fireplace and cook. ing-stove comprises a cooking oven c at the top, a hot-plate or chamber d (which may be closed) for heating utensils below the oven, an enclosed heating. chamber e below the hot-plate, and a grilling or browning chamber f below the chamber e, there being damper-con. trolled flues leading from the chamber e and associated with the chamber d and oven c. In the construction shown, the gases from the open fireplace a pass below a back boiler b to the chamber e and thence by flues h at the sides of the chamber d to the oven side and top flues. The gases pass mainly to the chimney flue from the oven lower flue by an opening l controlled by a damper o carried by the open fire damper p, but a part escapes from the top flue by way of a permanently open vent n.
Patent GB-1529721-A (GB)
Title: Process for the manufacture of adenosines
IPC: C07H19/16
Filed: 1975-08-27
Abstract: N<6>-substituted adenosines of the following formula <IMAGE> in which the substituents R1, R2 and R3 are defined in Claim 1, and Z is a sugar residue with a phosphoric acid residue bonded via one or two hydroxyl groups in the same molecule or via two hydroxyl groups in different molecules, are prepared. The compounds are obtained by reacting a corresponding 6-trialkylsilyloxypurine derivative, in which the free hydroxyl groups of the sugar and of the phosphoric ester have undergone intermediate silylation, with ammonia or with an appropriate primary or secondary amine. The resulting compounds can be used as agents with antiproliferative and cardiovascular activity.
Patent GB-754721-A (GB)
Title: Improvements in or relating to joints between copper and aluminium
IPC: B23K9/23
Filed: 1953-12-15
Abstract: Silver alloys for facing a copper member preparatory to welding it to an aluminium member have the following compositions:-  30 per cent Ag, 38 per cent CU, 32 per cent Zn;  50 per cent Ag, 15,5 per cent Cu, 16,5 per cent Zn, 18 per cent Cd;  45 per cent Ag, 15 per cent Cu, 16 per cent Zn, 24 per cent Cd;  50 per cent Ag, 15,5 per cent Cu, 15,5 per cent Zn, 16 per cent Cd, 3 per cent Ni;  75 per cent Ag, 25 per cent Zn;  85 per cent Ag, 15 per cent Mn;  5 per cent Ag, 95 per cent Cd;  20 per cent Ag, 80 per cent Cd.  An aluminium alloy for filter rods or electrodes for welding comprises 4,9,5,6 per cent Mg and 0,05-0,2 per cent Cr.
Patent GB-458386-A (GB)
Title: Improvements relating to domestic fire grates
IPC: F24B1/195
Filed: 1935-12-17
Abstract: 458,386. Open fireplaces. GOODCHILD, W. C., Elian View, Heenan Road, Old Colwyn, Denbighshire. Dec. 17, 1935, No. 34969. [Class 126] An open fireplace is provided with an adjustable canopy a adapted to direct air from the room downwards towards the fire in opposition to the gases rising from it. The canopy shown is pivoted at b and is of a recessed or concave form at the front, so that it may be moved inwardly, as shown, with its lower edge over the fuel. It is provided with side cheeks d cooperating with fixed cheeks e on the grate front to prevent air entering the chimney except past the lower edge of the canopy. Pre-heated air may be supplied from the ashpit or the outer atmosphere by a passage or passages g formed in one or more of the rear and side walls of the fireplace, and opening into the firespace at or slightly above the fuel level. The rear part k of the grate slopes upwardly, and is preferably formed with smaller spaces than the remainder.
Patent GB-908374-A (GB)
Title: Improvements in and relating to pistons for internal combustion engines
IPC: F16J1/04
Filed: 1960-10-12
Abstract: 908,374. Pistons. TATRA, NARODNI PODNIK. Oct. 12, 1960 [Nov. 13, 1959], No. 34971/60. Class 122 (1). An internal combustion engine piston, provided in its wall with longitudinally and circumferentially extending slits forming a T, has, substantially at the height of the circumferential slit 6, at least one circumferential rib 3 which extends from one of the piston pin hubs 2 towards the longitudinal slit 5 and terminates at or in the vicinity thereof. The rib 3 has a thickness tapering from a maximum at the piston pin hub 2 to a minimum at the slit 5.