baber/WOPTO huggingface dataset:
Patent GB-170354-A (GB)
Title: Improvements in shop window display stands
IPC: A47F5/06
Filed: 1920-07-14
Abstract: 170,354. Robertson, W. Johnston-. July 14, 1920. Pedestal, pillar, and like stands.-A shop-window display stand has a fixed pillar comprising two parts a, secured in slots in a supporting base c by wedges, and kept at the requisite distance apart by bands f secured thereto and having inward projectors h, which bands serve as guides for a slidable portion e held in position by a known form of eccentric lever m. The stand head may be formed by two shaped pieces q hinged together, the hinge s being provided with two projections w, connected by an elastic band x or a spring, and adapted to contact with a movable arm v to vary the inclination of the pieces q. The arm v is operated by a threaded collar y on the screwed stem u which projects downwardly from the centre of hinge s and screws into the top end of the slidable portion e of the stand.
Patent GB-1530240-A (GB)
Title: Mineral oil compositions
IPC: C10N40/25
Filed: 1977-05-20
Abstract: 1530240 Polymers containing phenolic groups POLYSAR Ltd 20 May 1977 [25 May 1976] 21281/77 Heading C3P [Also in Division C5] An additive for a mineral lubricating oil (see Division C5) is an isobntylene polymer with from 1 to 20% (weight) of 2,6-di-tert-butylphenol groups attached to terminal positions of the polymer at the 4-position of the phenol ring. The polymer may be a homopolymer of isobutylene, or a copolymer of isobutylene with up to 25% of other monomers. In the example, 2,6-di-tert-butylphenol, solvent and styrene (if used) are mixed in a dry bottle and cooled in an ice-acetone bath, isobutylene is added and allowed to cool, catalyst (AlCl 3  or EtAlCl 2 ) is added and the bottle shaken. After 30 minutes, the product is poured into ethanol and the liquid polymer separated and worked up.
Patent GB-238909-A (GB)
Title: Improvements in the process of distilling bituminous materials
IPC: C10G7/00
Filed: 1925-08-25
Abstract: In the distillation of bituminous materials such as coal, brown coal, peat, or mineral and tar oils or tar, in the presence of hot neutral gases such as hydrogen, illuminating gas, or water-gas, sulphur dioxide is also fed into the above-mentioned materials or into the vapours evolved therefrom.  By this treatment better products are obtained.
Patent GB-984588-A (GB)
Title: Squelch circuit
IPC: H03G3/34
Filed: 1963-05-28
Abstract: 984,588. Muting circuits. MOTOROLA Inc. May 28, 1963 [June 20, 1962], No. 21311/63. Heading H3Q. In a muting circuit a part of the signal is applied to limiters which are used to remove all amplitude information except modulation envelope minima not exceeding the limiting level, and the limiter output is applied to a detector which provides pulses in response to the modulation envelope minima, means being coupled to the detector to produce a control voltage having a level indicative of the number of pulses produced by the detector. The arrangement depends for its operation upon the number of minima in the modulation envelope increasing in the presence of noise and is especially useful in single sideband suppressed carrier communication systems. As applied to a superheterodyne receiver comprising preliminary stages 10-17, a last I.F. amplifier 18, detector and carrier-restoring stages 21, 23 respectively, and audio stages 25, part of the I.F. is tapped off from the output of amplifier 18 and applied to a branch transistor amplifier 50. The output is limited by reversely connected diodes 56, 57 and further amplified in a second stage 60 of amplification; it is further limited by diodes 66, 67 before application to a detector 72. The output of the detector 72 comprises a train of pulses corresponding to the modulation envelope minima which are amplified by amplifier 80. The output is applied to a rectifier 86 to produce across capacitor 88 a smoothed D.C. voltage, the arrangement of diode 86, resistor 87 and capacitor 88 comprising a quick-charge, slow-discharge circuit. This D.C. voltage is amplified in a D.C. amplifier comprising common-emitter transistor stage 90 direct coupled to common collector stage 92, the output of which is applied over a further quick-charge, slow discharge circuit comprising diode 97, resistor 99 and capacitor 98 to control the audio circuits 25.
Patent GB-1533168-A (GB)
Title: Amplification system
IPC: H03F1/26
Filed: 1976-05-24
Abstract: 1533168 Semiconductor amplifiers INTERNATIONAL BUSINESS MACHINES CORP 24 May 1976 [26 June 1975] 21371/76 Heading H3T An amplification system, e.g. for sensing magnetic bubble domains, comprises a first amplifier 18, feedback means 21 including a second amplifier 22 for reduction of D.C. offset in the first amplifier, the feedback means introducing external noise, via 27, 28, into the input of 18, and noise cancellation means 12, 13 connected to the input of 18, introducing noise of equal magnitude but opposite polarity. Both amplifiers may be integrated on a single chip (50), Fig. 2 (not shown), but decoupling capacitors 31, 32 for the input of amplifier 22, being too large to be integrated therewith, are connected by leads 27, 28. A rotating magnetic field used to bias the magnetic bubble chip (40) induces noise into 27, 28, which is amplified by 22. Noise induced into leads such as 33, 34 is relatively less important. Loops 12, 13 are oriented at 180 degrees with respect to loops 27, 28. Magnetic bubble domains may be detected by magnetoresistive sensors 1, 2, fed by current sources 41, 42 respectively.
Patent GB-196530-A (GB)
Title: Improvements relating to lid closures for paint or powder kegs and the like
IPC: B65D43/02
Filed: 1922-08-04
Abstract: 196,530. Smith, C. E., and Clark, D. Aug. 4, 1922. Retaining-devices in receptacle neck above closure.-The dished cover c of a paint keg or like container is supported upon a circumferential bead b and is retained in position by bending over, in places, the upper edge of the container as shown at e.
Patent GB-214108-A (GB)
Abstract: 214,108. Fisher, F. K. May 23, 1923. Trollies.-A trolly for supporting a calculating or like machine on a table is provided with depressible feet, carried by the free ends of resilient strips, for supporting the trolly when the machine is being used. The trolly runs on castors 8, and is provided with feet 19 supported by leaf springs 17, which can be depressed to transfer the weight from the castors to the feet by rocking a handlever 16, connected to rocking plates 10 engaging the springs. The rocking plates are formed with arms 14 connected by a link 15, one of the arms being extended to form the hand-lever. The plates may be pivoted to the trolly by means of rings 11. The castors have treads 9 of felt &c. The machine 4 is retained on the trolly by means of stops 3, and members 5 which serve also to support the castors.
Patent GB-644258-A (GB)
Title: Method and equipment for the making of piles of concrete in situ
IPC: E02D5/38
Filed: 1948-08-13
Abstract: 644,258. Piles. HAGRUP, J. F. Aug. 13, 1948, No. 21412. [Class 68 (ii)] A concrete pile is formed in situ by first assembling within a forming tube 10, Fig. 1, a second tube 16 having secured therein a concrete supply pipe 20 and tubular guides 24 for receiving reinforcing rods. The inserted tube 16 is provided with upper and lower end plates 17, 18 and packing 22, 35 is provided beneath the annular flange 19 of the lower plate and above the upper plate. A cap 26 is loosely positioned on the lower end of the outer tube 10 which is then driven, with the insert tube in position, by blows on a removable head 33. When the tubes are fully sunk the head is removed and the reinforcing rods are dropped through the guides 24, their lower ends penetrating and anchoring themselves in an annular member 30 of inverted U-section secured to the cap 26. Alternatively the reinforcing rods may be carefully passed through the guides 24 and the insert tube, with the rods in the guides, is then bodily withdrawn and an anchoring plate secured on to the lower ends of the rods, the insert tube, rods and anchoring plate then being replaced within the tube 10. The two tubes are now raised in unison as shown in Fig. 6, the cap 26 and the reinforcing rods 37 being left behind, whilst concrete is passed from a hopper head 40, down the pipe 20 and into the hole formed by the receding tubes 10, 16.
Patent GB-887390-A (GB)
Title: Cam operated electric switch mechanism
Inventor: MCGUIRK FRANCIS
IPC: H01H3/58
Filed: 1959-06-23
Abstract: 887,390. Cam-operated switches; interrupters, CHAMBERLAIN & HOOKHAM Ltd June 10, 1960 [June 23, 1959], No. 21442/59. Class 38 (5). In a rotary switch mechanism which includes an axially and angularly movable spindle 8 carrying cams 9 which operate a plurality of switches when rotated and additional switches which are operable by axial movement of the spindle, a clutch 23 disengages an operating handle 21 from the spindle when it is in one of its two axial settings and so prevents rotation by the handle when the spindle is in that setting. A U-spring 16 engages in either of two locating grooves in the spindle, which grooves are so spaced that movement of the spindle between them does not disengage the cams 9 from their associated switches. The cam-operated switches each comprise a fixed contact 12 and a movable contact in the form of a resilient blade 14 having a cam follower 15. The additional switches each comprise a fixed contact 17 and a movable contact 18 carried by a resilient blade 19 which extends through a slot in an L-shaped lever so pivoted on insulating sheets 10, 11 that axial movement of the spindle rocks the lever and opens or closes the contacts. A further lever 26, at the opposite end to the handle, is actuated by axial movement of the spindle and transmits a magnified movement to a clutch member 23 via a slide arm 27 and a crank arm 28 to ensure rotational engagement of spindle and handle when the spindle is pushed in, a spring 24 ensuring disengagement when the spindle is retracted. The switch mechanism can be driven manually with the spindle pushed in or by an electric motor energized over the auxiliary contacts when the spindle is withdrawn.
Patent GB-1453183-A (GB)
Title: Separating devices
IPC: B07B13/00
Filed: 1972-11-09
Abstract: 1453183 Separating solid materials A W B DAVIES 8 Feb 1974 [9 Nov 1972] 21497/72 Heading B2H In a method of separating a first material, e.g. stones and clod ,from a second material, e.g. potatoes, having a greater tendency to roll than the first material, the materials are discharged from a first conveyor 4, Fig. 1, onto a second conveyor 12 travelling slower than the first conveyor so as to cause the second material to roll faster than the first material and the materials are discharged from the second conveyor 12 onto a third conveyor 14 travelling in a direction generally counter to that in which the first conveyor 4 travels, the first material being discharged from one end of the third conveyor and the second material being discharged from another end of the third conveyor. Potatoes, stones and clod collected by a harvester may be delivered by an elevator onto a conveyor belt 1 by means of which they are deposited onto a conveyor belt 2 which in turn feeds them transversely across a conveyor belt 4. Due to the greater rolling motion imparted to the potatoes on conveyor belt 2 they are carried across to the side 6 of the conveyor belt 4, while the more irregularly shaped stones and clod with lesser tendency to roll drop from the conveyor belt 2 onto the nearest side 8 of the conveyor belt 4. The latter delivers the potatoes, stones and clod onto a conveyor belt 12 which travels at a slower speed than the belt 4 so that the potatoes, which roll faster than the stones and clod, fall onto and roll along a contramoving conveyor belt 14 from one end of which they are discharged onto a conveyor belt 16. The stones and clod rolling more slowly than the potatoes are carried by the belt 14 and delivered at its opposite end onto a conveyor belt 22. A deflector plate 20 may be provided to ensure that the stones and clod are directed onto the belt 22. In a modification, the belt 12 may travel in the same direction as the belt 14. In a further modification, Fig. 7 (not shown), the belt 4 may carry slots (28) which project from its surface and which extend partially or wholly across the belt. The outer surfaces of any of the conveyor belts may be smooth or, as shown in Fig. 6, may be provided with resilient rubber or plastics projections which may be located over the entire outer surface of the belt or over only part (e.g. belt 4 in Fig. 1) of the outer surface. The belts 4 and 12 may have a graded profile of projections 10, Fig. 4. The belts 4, 12 and 14 may be adjustable with respect to the horizontal in both the longitudinal and transverse directions.
Patent GB-315374-A (GB)
Title: Distillation of tar
IPC: C10C1/04
Filed: 1928-03-02
Abstract: 315,374. Barrett Co., (Assignees of Miller, S. P.). March 2, 1927, [Convention date]. Divided on 286,278. Condensing and washing processes. -The gases from the retorts of a coal distillation battery 1.pas through uptake pipes 2 to a collector main 3 where tar is deposited. The tar collects in a centre box 4 and is drawn off through a separator 12 to a storage tank 14, from which it is pumped to a still 21. Part of the coal gases pass from the main 3 through a pipe 29 to the vapour space of the still 21 through which the tar is circulated from nozzles 20 by a pump 24 and pipe 23. The pitch produced is withdrawn to a receptacle 30. The gases are removed from the still 21 through a pipe 31 and may be condensed in a separate condensing system 32, 33 or led through a pipe 35 to mix with the remainder of the gases from the battery 1 which pass in the usual manner through branches 6 to a cross over main 5, the mixed gases being condensed together in condensers 7, 8. Specifications 282,826 and 284,703 are referred to.
Patent GB-1343802-A (GB)
Title: Explosively-operated valve
IPC: F16K17/36
Filed: 1971-04-19
Abstract: 1343802 Dishwashing machines P G WATTERBACK 19 April 1971 [13 Feb 1970 19 Aug 1970] 21602/71 Heading A4F [Also in Division F2] In an explosively operated valve for controlling flow of water to a dishwashing machine, if the flow direction is from 3 to 5 Fig.1, then closure member 9 is normally held on its seat 7 by threaded actuator 11 and flow is allowed by check valve member 21 and ports 49, 51. If the glow plug 47 is energized, e.g. by closure of a switch by a leakage detector below the machine, then percussion cap 45 is detonated and piston 27 is driven downwards to hold the closure member 21 against seat 19. The piston remains in its depressed position due to its tight fit within extension 31 of closure member 9. With the valve mounted for reverse flow, closure member 9 serves as a throttling member and detonation of cap 45 is effective in that case to drive the piston downwards until closure member 9 engages its seat where it is retained due to its tight fit in actuator 11. Gas pressure is vented via passage 55 and paint seal 57, fracture of which indicates operation of the valve. Seal rings 33, 37 can be omitted if piston 27 and member 9 are of Teflon (R.T.M.) Withdrawal of actuator 11 allows replacement of the percussion cap and resetting of piston 27 and member 9. In Fig.2, a closure member 71 of nylon or Teflon (R.T.M.) is driven downwards following detonation of nitrocellulose disc 91 by an electrically fired detonating mixture at 85. The gases are vented at 95. The explosion may alternatively be generated by allowing the mixing together of two substances, such as potassium permanganate and hydrogen peroxide, in response to an applied signal. One of the substances can be contained in a frangible plastics ampule or in a chamber with a frangible wall. A pressure signal may actuate the valve instead of an electrical signal.
Patent GB-187379-A (GB)
Title: Improvements in and relating to vanity cases
IPC: A45D33/18
Filed: 1921-08-15
Abstract: 187,379. Brosnan, M. H. Aug. 15, 1921. Cases combined with artificial flowers.-Relates to a case disguised to represent a wild rose or other flower. The pasteboard body 1 is fitted with a hinged flanged cover 2 which may be secured by a snap fastener. The case may be used as shown for holding a powder-puff 8 and face powder, in which event the inside of the cover is fltted with a mirror 9, or it may be used as a purse for containing coins. A fabric body 17 surrounds the case body and is provided with artificial leaves 18 and a stem 19, a similar body attached to the cover carrying parts representing the petals and pollen of the flower. The hinge piece and the two parts of the snap fasbener are formed as separate metal plates having attachment prongs adapted to be pressed through the material and clinched inside.
Patent GB-1452907-A (GB)
Title: Preconditioning of anodes for the electro-winning of copper from  electrolytes having a high free acid content
IPC: C25D11/00
Filed: 1973-05-07
Abstract: 1452907 Electrowinning copper DAVY POWERGAS Ltd 7 May 1974 [7 May 1973 27 Dec 1973] 21649/73 and 59737/73 Heading C7B  Copper is recovered electrolytically from an electrolyte containing at least 50 g/l H 2 SO 4  using as anode Pb or a Pb alloy which has been preconditioned by anodizing in H 2 SO 4  free from Cu. The preconditioning electrolyte may contain up to 80 g/l NaF and may include Co, Ag, Te, Th and/or Sn; alternatively this electrolyte may contain (NH 4 ) 2 SO 4 . The anode may be pure Pb or an alloy with Sb, As, Ca, Co, Ag, Te, Th or Sn. The Cu electrolyte may derive from treatment of a Cu source liquid with an organic ion-exchanger e.g. mixed α-hydroxy aliphatic oximes followed by regeneration with H 2 SO 4 , which may be present up to 400 g/l. The metals Co, Ag, Te, Th and/or Sn may be present therein. A Cu starter or steel or Ti cathode may be used.
Patent GB-569967-A (GB)
Title: Improvements in or relating to cut-off machines
IPC: B28B11/12
Filed: 1943-12-24
Abstract: 569,967. Cutting machines for paper &c. NEWTON, E. P. (Ehrsam & Sons Manufacturing Co., J. B.). Dea. 24,1943, No. 21665. [Class 31 (i)] A cutting machine which is especially applicable for cutting plaster board and the like as fed from a forming machine into lengths of adjustable size is constructed with a continuously rotated roller 16 fitted with four knives 17, 18, 19, 20 and a coacting roller 41 fitted with a single knife 64, the roller 41 being driven by means which can be disconnected selectively from its driving means and reconnected thereto in timed relation to cause the single blade to co-operate with any one of the four blades. Sheets can thus be cut which vary from a length equal to the circumference of the roller 16 to a length equal to this plus a multiple of a quarter of the length. The rollers 16, 41 can be arranged alternatively to cut completely or partially by varying the distance between the axis of the rollers, and means for varying the sequence of complete cuts and partial cuts or perforations is provided. The upper roller 41 is mounted in slides which are fitted with rollers 77 engaged by a cam on a shaft 79 which is movable to one of two positions corresponding to complete or partial severing. The work is fed over rollers 110, 111 on adjustable slides 112 which are lowered by eccentrics 120 to cause the work to contact with the lower roller before the upper cutter comes into action. The cutter roller 41 is driven by a one-revolution claw clutch 38, 52, of which the claw 38 is driven by an Oldham coupling from spur wheels 33, 34 driven from the roller 16 which is driven by chain gearing from a motor 27. The claw 52 is normally held from engagement by a trip dog 55 which is held in action by a spring-pressed lever 62. The lever 62 is acted upon by a trip element 76 on a chain 75 driven by bevel gears 66, 67 from the roller 16 to start the clutch, and after one revolution the clutch is thrown out against the action of a spring- pressed lever 49 by the action of the dog 55 on a cam surface 57 on the claw 52. Trip elements 76 may be used to cause the knife 64 to coact with either of the knives 17-20. Other trip elements 99 are provided to cause rotation of the cam shaft 79 through half a rotation and so control the extent of cutting. The elements 99 control the actuation of another one-revolution clutch 84, 105 acting similarly to the clutch 38, 52, and the elements 99 may be arranged to secure the desired sequence of complete or partial cuts. U.S.A. Specification 2,288,921 is referred to.
Patent GB-672186-A (GB)
Title: Improvements in classifiers
IPC: B02C23/00
Filed: 1950-09-01
Abstract: 672,186. Centrifugal separators. BABCOCK & WILCOX, Ltd. Sept. 1, 1950 [Sept. 2, 1949], No. 21665/50. Class; 23 A classifier for a wind-swept pulverizer comprises a chamber 5 with a lower outlet 6 for oversized particles, an upper telescopic outlet 7, 9, projecting within the chamber, and a lower inlet 1 with a flared discharge end 2 :spaced from the wall of the chamber and having whirl producing blades 3. The telescopic sleeve 9 may be lowered by wires 11 to form an extension of the inlet. The diameter of the chamber is less than twice the diameter of the inlet 1.
Patent GB-737670-A (GB)
Title: Double use window face envelope
IPC: B65D27/04
Filed: 1952-08-28
Abstract: 737,670. Envelopes. KENSIT, G. R. Aug. 28, 1952 [Sept. 28, 1951], No. 21667/52. Class 146(2). A double use window face envelope has a front panel 11 with a transparent or translucent window 12, a sealing flap 16 secured to or integral with the front panel arid adapted to be folded about the upper edge of that panel, a rear panel 11<SP>1</SP>, and an obscuring flap 10 secured to or integral with the rear panel and adapted to be folded along the upper edge of that panel, the upper edges of the front and rear panels being substantially in alignment, and the obscuring flap being so shaped, &c. that it may be folded into the envelope prior to the first transmission through the mail, as in Fig. 2, and withdrawn and sealed to the upper part of the front panel, obscuring the postmark, &c. 14 as in Fig. 4, for the second transmission during which the name, &c. of the second. addressee is exposed through the window. The obscuring flap is slightly tapered and is not substantially greater than, and is preferably less than, half the depth of the envelope. For the first transmission the sealing flap may be folded in the envelope, or read normally as in Fig. 2.
Patent GB-880567-A (GB)
Title: A digging device for a dipper dredger
Inventor: SAARILAHTI AITO
IPC: E02F5/00
Filed: 1958-07-07
Abstract: 880,567. Shovelling machines. OY, P. July 7, 1958, No. 21676/58. Class 68(1). The shovel unit at the lower end of a dipper stick A of the machine comprises pivoted upper and lower jaws 3, 1 which are normally locked to the dipper stick by latches 8, 10 which can be released by cables 9, 13. When the latch 8 is released, the upper jaw 3 is swung towards the lower jaw 1 by the tension of the boom hoist cable 4 causing the lever 5 and a lever between it and the upper jaw 3 to swing.