baber/WOPTO huggingface dataset:
Patent GB-438721-A (GB)
Title: Improvements in or relating to herbicides
IPC: A01N59/22
Filed: 1934-04-19
Abstract: A herbicide consists of a solution of caustic soda and white arsenic impregnated with sulphur dioxide.  One pound of a mixture of equal parts of the solid ingredients may be dissolved in 5 gallons of water and the solution impregnated to give 6 per cent sulphur dioxide content by means of the apparatus described in Specification 426,234, [Group I].  The Specification as open to inspection under Sect. 91 comprises also all herbicidal and insecticidal compositions comprising aqueous sulphur dioxide solution and an "adjuvant," and describes an insecticide in which the adjuvant is a hygroscopic substance such as glycerine.  In this composition the water may be partly or wholly replaced by animal oil.  This subject-matter does not appear in the Specification as accepted.
Patent GB-1029327-A (GB)
Title: Gas purification
Inventor: GARRETT MICHAEL ERNEST
IPC: B01D53/04
Filed: 1964-03-20
Abstract: 1,029,327. Separating gas mixtures. BRITISH OXYGEN CO. Ltd. March 15, 1965 [March 20, 1964], No. 11792/64. Heading B1L. Impurities are removed from a gas stream flowing in a closed system (e.g. a helium refrigerator system containing atmospheric impurity) by passing the stream through an adsorber bed 4 and preventing the concentration plug of high impurity content which moves through the bed from escaping from the bed by periodically reversing the direction of flow through the bed. Gas flowing from a compressor 1 either flows through valve 3 or valve 11 to the bed, and from the bed through valve 5 or through valve 13 to a refrigeration unit 7. An impurity sensing device 20 connected by a changeover valve 24 to probes 21 and 22 gives an electrical signal to close and open valves when a probe senses a rise in impurity level. Rapid valve changeover indicates imminent need for regeneration.
Patent GB-809099-A (GB)
Title: High dielectric constant glass
IPC: H05B33/24
Filed: 1957-04-10
Abstract: 809,099. Glass compositions enamels and enamelling. SYLVANIA ELECTRIC PRODUCTS Inc. April 10, 1957 [June 28, 1956], No. 11799/57. Drawings to Specification. Class 56. A glass of high dielectric constant contains in molecular percentage TiO2 19-36; SiO 2  20-37 ; alkaline oxide 2-14; B 2 O 3  4-21. Preferably the alkaline oxide is K 2 O,but Na 2 O and/or Li 2 O may replace in whole or in part. In addition BaO 0-10 and ZnO 1-29 may be used. At least ¢ per cent. by weight of iron particles may be added. The ingredients as above, or other compounds which reduce thereto on heating, are mixed together and fused at a temperature between 1050‹C. and 1450‹C. and the fused mixture then quenched quickly by being poured into water at room temperature to break the melt into small particles. The fuel is dried, mixed with amyl acetate and milled for two to three days, the material then being screened to limit the particle size. The material with additional amyl acetate if necessary is then sprayed onto a sheet of enamelling steel to a thickness of about 4 to 6 one-thousandths of an inch, the coating then being dried and fired.
Patent GB-216127-A (GB)
Title: Improvements in hackling machines for flax, hemp and other fibres
IPC: D01B5/00
Filed: 1924-05-13
Abstract: 216,127. Robb, W., and Robb, S. May 13, 1924. Heckling-machines.-In a heckling-machine for flax &c. the holders 1 are carried continuously along a. stationary channel 3 and are acted upon by heckle sheets 12 which run approximately vertically, the top pins intermeshing by about one-sixteenth of an inch, and the bottom pins being only about one-eighth of an inch away from one another. The movement of the holders along the channel is obtained from an endless chain 5 passing round sprocket wheels, one, 6<1>, of which is driven by gearing 8, 9, 10. The chain carries projecting pins to engage the holders.
Patent GB-1337321-A (GB)
Title: Radiant insert for oil burners
IPC: F24C5/12
Filed: 1971-04-28
Abstract: 1337321 Radiant insert for oil burner G SONNTAG 28 April 1971 [28 April 1970] 11847/71 Heading F4T In a radiant insert 22, for a pot-type vaporizing oil burner, an axial passage 38 is surrounded by radiant elements 36. A radiant shaft 26 comprises spiral springs 46 and 48. The radiant elements 36 have openings 44 formed by punched out tongues 47. In use, the insert 22 is arranged in a central aperture 30 of a flame ring 16, supported by an annular bead inside a burner cup forming an evaporation chamber 32 and a combustion chamber 34 with primary and secondary air inlets 20 and 18. Alternatively the insert 22 and flame ring 16 may be integral. In another embodiment (Figs. 3 and 4, not shown), the insert may be of easily deformable wire to fit different burner cups. The two spiral springs may be capable of relative axial adjustment. The insert may be wholly or partly made of ceramics.
Patent GB-1041971-A (GB)
Title: Improvements in or relating to arrangements for indicating unacceptable register errors in insetting processes
Inventor: THOMPSON WILLIAM BRIERLEY
IPC: B41F17/00
Filed: 1962-03-28
Abstract: 1,041,971. Associating webs; longitudinal registering; printing processes. BEAVERBROOK NEWSPAPERS Ltd., and WITTONJAMES Ltd. May 28, 1963 [March 28, 1962], No. 11953/62. Headings B6B, B6C and B6H. [Also in Division G3R] Apparatus for associating webs to form newspapers or the like, is provided with means for detecting unacceptable register errors in the printing or pages of the newspapers and marking means actuated by the detecting means to apply a mark on one of the webs affected by said unacceptable register error, whereby defective newspapers may be identified. A partially preprinted web 11 is fed through printing apparatus 14, where it is over-printed, and associated with a second web 1 printed at 2. The web 11 is registered longitudinally by comparing the output signals from photo-electric means 16 scanning marks 10 pre-printed along one edge of the web and the output from a coil 32 pulsed by a magnet 27 on a rotating impression cylinder 3. The error signal is used to correct the speed of rotation of feed rollers 12, 13 and ensure accurate registration of the newspaper pages and of the over-printing with the pre-printed matter. If the error signal exceeds a predetermined value, a spraying device 38 is activated to spray a dye on the out-of-register portion of the web 11. The spraying device 38 may be positioned above the folder 8 to mark an outside page of the newspaper. Alternatively, the web 11 is entirely pre-printed and fed directly to the rollers 12a, 13a. In this case, the magnet 27 and coil 32 are associated with the cutting and folding section 8. The error signal may operate an alarm as it approaches said predetermined valve. If the spraying device operates for longer than a predetermined time, the printing apparatus is slowed down or stopped.
Patent GB-831440-A (GB)
Title: Improvements in rotor assembly for induction voltage regulator
IPC: H01F29/12
Filed: 1957-04-12
Abstract: 831,440. Induction voltage regulators. GENERAL ELECTRIC CO. April 12, 1957 [May 2, 1956], No. 12053/57. Class 38 (2). The rotor for an induction voltage regulator comprises a magnetic core 12 of substantially circular laminations provided with slots 13, 14 in which layer windings 25, 29 are wound, the windings being formed about frusto-conical formers 35 at each end of the core. Grooves 40 are provided in members 35 to accommodate tapes 41 for tying the turns of the windings together. Further members 49 also guide the winding during the winding process and are removable. Random wound short-circuit windings 46 are also provided in slots in the core.
Patent GB-315495-A (GB)
Title: An improved method of manufacturing bituminous emulsions
IPC: C08L95/00
Filed: 1928-04-25
Abstract: 315,495. Hurrell, G. C. April 25, 1928. Emulsions, making.-Aqueous bituminous emulsions of a fine degree, of dispersion and stabilized by colloidal clays such as bentonite are prepared by dispersing the bituminous material in water containing a small quantity of stabilizer or protective colloid or of alkali with the aid of a colloid mill and mixing the unstable dispersion produced with an aqueous suspension of clay, using mild agitation. Examples describe the dispersion of 66 parts of Venezuelan bitumen at 100‹ C. or bitumen of melting point 100‹C. at 110‹ C. in 34 parts of aqueous solutions, at 80‹ C., containing 5 per cent of sodium oleate, and 1 per cent of casein together with 10 per cent of borax respectively. The aqueous dispersions produced are, in each case, stirred into 34 parts of a 5 per cent suspension of clay preferably at a temperature substantially equal to that of the dispersions to produce stable emulsions. Specification 214,308 is referred to.
Patent GB-218062-A (GB)
Title: Improvements in road vehicle wheels having detachable ring flanges
IPC: B60B25/16
Filed: 1924-02-02
Abstract: 218,062. Westley, T. Feb. 2, 1924. Tyre attachments to rims.-Relates to rims of the type in which a detachable flange e<3> is attached by a transverse and cireumferential movement which causes a series of plates h carried by the flange to engage behind a corresponding series of plates f carried by the fixted rim part e<2>, and consists in the provision on the inner periphery of the felly c of a metal reinforcing ring j on which the detachable flange bears transversely at j<2>, and of a housing for the interengaging locking plates formed by cutting away the side of the felly. The detachable flange is provided with a shoulder i to engage the outer edge of the fixed rim part. The adjacent faces of the locking plates may be inclined to the plane of the wheel so as to exert a transverse pull on the flange during engagement.
Patent GB-1026682-A (GB)
Title: Electric motor speed control systems
Inventor: PEPPER EDWARD JOHN
IPC: H02P25/28
Filed: 1962-03-30
Abstract: 1,026,682. Automatic speed control. ENGLISH ELECTRIC CO. Ltd. March 29, 1963 [March 30, 1962], No. 12231/62. Heading G3R. [Also in Division H2] When an induction motor 10 is operating stably under load at a speed lower than a selected reference speed, an error voltage applied to amplifying transistor 60 is just sufficient to maintain the motor near the selected reference speed. A decrease of load causes the potential at terminal 51 to rise, and the energization of control winding 14 of saturable reactor 13 is consequently reduced. Opening of any of the switches 23-25 reduces the reference voltage in a step-like manner; the transistor 60 being rendered fully conductive and the potential at terminal 51 increased to its maximum value. Main amplifier 50 is cut off to deenergise the winding 14. A trigger pulse is fed through capacitor 41 to monostable timing device 37 so that amplifier 35 energises a D.C.braking winding 34 on the motor. The duration of the breaking period is set by the device 37 to enable the speed to be reduced to a value slightly greater than the new reference value, the speed continuing to fall after completion of the period due to the retarding effect of the load. When the speed falls below the reference value, the conduction of transistor 60 gradually decreases. Reduction of the reference voltage also triggers timing device 67 to render transistor 65 conductive temporarily whereby the thermistor 63 is heated and passes an appreciable current through diode 64 and resistor 61, the potential at terminal 51 being at a value near to that at the junction of resistors 56, 57. The gain of auxiliary amplifier 52 is reduced and the return to normal power operation of the motor deferred. As the thermistor cools, the effective gain of the auxiliary amplifier is gradually restored to its normal value, the supply of current to winding 14 being increased smoothly. The timing 67 and capacitor 68 may be dispensed with, the timing device 37 controlling both the braking period and the heating period. A Zener diode 33 limits reverse voltage across amplifier 50 when the output voltage of the latter is reduced suddenly. The speed of the motor is detected by tachometer generator 26, a feedback voltage being developed across resistor 28. A negative bias potential source maintains the base of transistor 60 in a negative potential range when the motor is operating in accordance with a reference voltage.
Patent GB-592104-A (GB)
Title: Improvements in or relating to containers
IPC: B65D25/38
Filed: 1945-05-16
Abstract: 592,104. Delivery openings of containers. TRAMER, Ltd., H., ROOS, J. F., and TRAMER, J. May 16, 1945, No. 12246. [Classes 18 and 66] A container a of treated paper, cardboard, metal or plastic has the wall a<1> and beaded rim a<2> cut through as illustrated to form a flap b which may be pulled open to allow delivery of the contents of the container. The flap swings outwardly about an axis e, where the container wall may be creased or ridged to facilitate bending. The cuts c at the rim a<2> may converge outwardly to hold the flap b closed.
Patent GB-454725-A (GB)
Title: Improvements in or relating to systems of control for electrically operated lifts
IPC: B66B1/44
Filed: 1935-04-24
Abstract: 454,725. Electrically - controlled brakes. GENERAL ELECTRIC CO., Ltd., Magnet House, Kingsway, London, and SMART, N. C., and CHUBB, A. A., c /o General Electric Co., Ltd., Stoke, Coventry. April 24, 1935, No. 12311. [Class 103 (i)] [See also Group XXXVII] The current flowing to an induction motor ST, RO, driving a lift LC is measured during or after every start from a floor, but before deceleration, by means comprising a step-by-step-switch G which determines the degree of energization of an eddy-current or friction brake X during deceleration, the degree of energization being inversely proportional to the said current. Upon operation of a starting switch SO, the driving motor is started and accelerated to full speed, and a relay E is energized from a transformer P in accordance with the current taken by the motor. The coil of the relay E includes a resistance RG over which a wiper G1 of the step-by-step switch G is moved when the motor is started; and when the relay E is sufficiently energized it operates to interrupt the stepping circuit of the switch G which is thus positioned in accordance with the current taken by the motor. The switch G has a contact bank G6 controlling resistance RH in series with the coil of the eddy-current brake, and when the driving motor is decelerated upon approaching a floor at which it is desired to stop, the eddy-current brake is energized and, by the control of the resistance RH, to an extent which is inversely proportional to the current supplied to the motor at starting. When the lift reaches the desired floor the motor is disconnected and a holding brake K applied. The brake X may take the form of a variable friction brake.
Patent GB-134251-A (GB)
Title: Improvements in Disengaging Gear specially suitable for Releasing Boats and the like.
Inventor: PHILLIPS GERARD JOHN
IPC: B63B23/58
Filed: 1918-07-29
Abstract: 134,251. Phillips, G. J. July 29, 1918. Load, releasing.-A block a in the form of an inverted wedge is integral with a stem a<1> attached to the article to be lifted. The block is rectangular in plan, and its forward and rear faces are gripped by arms b hinged to a block c at the end of the swivel attached to the tackle. The block c is provided with flanges c<1> overlapping the block a. A pair of hooks d are pivoted at d<1> to one of the arms b, and are adapted to engage with projecting pins b<1> on the other arm b. The hooks are held in the engaged position by a tension spring d<3>, attached as shown.
Patent GB-217013-A (GB)
Title: Improvements in and relating to electric switches
IPC: H01H33/16
Filed: 1923-05-08
Abstract: 217,013. British Thomson-Houston Co., Ltd., (General Electric Co.). May 8, 1923. High-potential switches; sparking, preventing. -An oil switch has ordinary main and sparking contacts, and, in addition, the main bridging contact is connected with an auxiliary bridge contact which is actuated with the main contact and bridges a pair of auxiliary contacts enclosed in an explosion chamber and connected directly or through inductive or non-inductive resistances with the main fixed contacts. The auxiliary fixed contacts which are on a line at right angles to the main fixed contacts constitute with the auxiliary bridge an auxiliary sparking switch in parallel with the main switch. The main bridging contact 11, which bridges the main fixed contacts 9 and has the usual auxiliary contacts 15 bridging the auxiliary fixed contacts 10, is formed in one with the movable bridge 13 of the auxiliary bridge, the two bridges being at rightangles. Two auxiliary fixed contacts are fixed to the cover by insulators 17 so as to be concentric with the main contacts and on a diameter at right-angles thereto; they are enclosed within explosion chambers 21 and are connected by strap conductors 25, 26, which may be resistances or inductances, to the main fixed contact blocks 8. In breaking the circuit, the pin contacts 24 on the auxiliary bridge leave the fixed contacts and the circuit is finally broken in the explosion chambers.
Patent GB-167284-A (GB)
Title: Improvements in or relating to die heads
IPC: B23G5/12
Filed: 1920-05-04
Abstract: 167,284. Gates, W. H. May 4, 1920. Screwing dies and dieheads.-The dies 3, Fig. 11, of a die-head are opened and closed by longitudinally sliding cam rods 9 which are secured to a shell 8. The axial movement of the shell to set the dies is effected by a cam-lever 51, Fig. 6, rotatably mounted on the shell but controlled by cam-splines 26 on the shank 4, so that engagement of the cam-lever with a one-way-acting fixed projection on the machines (not shown) causes the shell and cam rods to advance relatively to the head 1 against the springs 48, Fig. 4, so closing the dies. The shell and head are retained in locked engagement by a trip-lever 13, Fig. 13, and adjustable locking-bolt 15. Screwing then proceeds till the shank 4, Fig. 3, is drawn through the sleeve 36 to enable the adjustable stop 45 to trip the lever 13, when opening of the dies and the return of the shank take place under the successive action of the springs 48, 43.
Patent GB-1394792-A (GB)
Title: Single-stroke riveting device
IPC: B21J15/22
Filed: 1973-03-15
Abstract: 1394792 Riveting KHARKOVSKY AVIATSIONNY INSTITUT 15 March 1973 12463/73 Heading B3U A single stroke riveting device comprises a housing 1, a striker 5 movable within a hollow cylinder 2 for striking a rivet set 6, a compressed gas source 9 connected by ports 21 to the hollow cylinder 2 for returning the striker 5 to its initial position in a socket 27 in a block 7, a piston 12 for compressing a gas in a pneumatic portion 10 of a hydropneumatic cylinder when fluid is fed into the hydraulic portion 11 thereof, a control valve 29 mounted in the block 7 for shutting off a through hole 28 in the block 7 when fluid is first fed into the hydraulic portion 11 and for opening it to initiate the working stroke of the striker 5. In one embodiment, the operation of the tool is initiated by pressing a lever 15 which causes fluid under pressure to flow through a passageway 49, and a chamber 44, a chamber 37 via a port 47, a passageway 38 and into the hydraulic chamber 11. The piston 12 is thereby moved to the left to compress the gas in the pneumatic chamber 10 until it abuts stops 13 whereupon the fluid pressure in the chambers 11, 37, 44 increases so that a piston 35 in the chamber 44 is moved to the left against the pressure of compressed gas supplied from the chamber 10 via passageways 25, 24. When the piston 35 is moved, a trigger 39 connected thereto is moved slightly, whereupon the trigger 39 is pulled by the operator to cause a conical head 32 on a spindle 31 to retract from the hole 28 leading into the socket 27 accommodating the striker 5, which is then moved through the cylinder 2 by the fluid in the chamber 37. Due to the action of the compressed gas in the chamber 10, the piston 12 is displaced to the right expelling fluid from the chamber 11 into the cylinder 2 via openings 26 which were previously closed by the striker 5 in its initial position. Gas within the cylinder 2 is displaced into the cavity 9 by the moving striker 5 which hits the rivet set 6 which in turn sets the rivet. When the trigger 39 and lever 15 are released, the striker 5 is returned to its initial position and the fluid returned to the reservoir via openings 26, passageway 38, chambers 37, 44 and passageway 49. Some of the fluid pushes back the spindle 31 against the action of spring 30 to escape into the chamber 37. The piston 35 is returned to its initial position by the gas in the chamber 10. The cylinder 2 is turnable about its axis A-A to vary the size of the openings 26 to control the flow of fluid therethrough. Other embodiments disclose different constructions of piston 12 and control valve for closing the passageway 28.
Patent GB-849625-A (GB)
Title: Hydraulic braking system for vehicles
Inventor: BUTLER HENRY JAMES
IPC: B60T13/02
Filed: 1956-04-25
Abstract: 849,625. Hydraulic brakes. DUNLOP RUBBER CO. Ltd. April 16, 1957 [April 25, 1956], No. 12609/56. Class 103 (1). In a motor vehicle hydraulic braking system, an hydraulic master cylinder is operated to apply at least one of the brakes associated with the front and the rear wheels of the vehicle and a servo mechanism is associated with the brake or brakes adapted to be applied by the hydraulic master cylinder and thereby to apply the remaining brakes in the system. In the motor vehicle braking system illustrated in Fig. 2 provided with disc brakes on the front wheels and drum brakes on the rear wheels, a pedal operated master cylinder 3 applies one of the rear wheel drum brakes 1; the torque plate 4 of the latter being mounted for limited angular movement upon the non-rotatable axle housing 5 to actuate the servo mechanism 10 mounted on flange 8 integral with axle housing 5 to apply the remaining brakes of the system. Additional servo assistance of the braking system may be achieved by a connection 17 between conduit 15 and space 18 at the rear of piston 19 in pedal operated master cylinder 3.
Patent GB-1026899-A (GB)
Title: Improvements in or relating to gas burners
IPC: F23D14/58
Filed: 1965-03-25
Abstract: 1,026,899. Gas burners. AMERICAN RADIATOR & STANDARD SANITARY CORPORATION. March 25, 1965 [March 26, 1964], No. 12630/65. Heading F4T. A gas burner comprises an elongated mixing chamber formed by two C-sectioned sheet metal members 5, 5a and by an M-sectioned plate 19 having outlet slots 20 traversing its middle part. The two C-sectioned members 5, 5a have lower abutting flanges 6, 6a and upper abutting flanges 8, 9 and are held together by the ends of the flanges 6a and 9 being bent over the ends of the other flanges 6 and 8. The M-plate 19 has side flanges which are received slidably in inwardly facing track-ways 15, 16 in the C-members 5, 5a.