baber/WOPTO huggingface dataset:
Patent GB-1522547-A (GB)
Title: Clip storage
IPC: B65B15/04
Filed: 1976-05-13
Abstract: 1522547 Packaging clips on tapes BRITISH & FOREIGN TOBACCO CO Ltd 9 May 1977 [13 May 1976] 19666/76 Heading B8C A spring clip-carrying tape is formed by transversely-pleating a tape and applying U- shaped plastics spring clips to the pleats with the arms of each clip engaging on opposite sides of a respective pleat. A paper tape 6 is intermittently drawn from a roll 7 by a wind-up roll 23 and belt 25 successively through intermeshing pleat-forming toothed rollers 1 and 2 and a clip application station. At this station; groups of clips fed down a shoot 17 are pushed out of a pivotable lower shoot portion 18 by a multifinger pusher 19 through guides 21 on to the pleated tape, the tape being stationary during pusher operation. When sufficient clips have been applied, a clip-free unpleated tape section is wound on the drum, a knife 24 being actuated to separate the wound tape from its supply. The clips are fed from a supply hopper down a channel 10 and forwarded by belts 11 and 12 to a stop 13 until a photo-electric sensor 14 responsive to clip build up actuates a pusher 16 to displace the formed clip group down the shoot. In a modified embodiment. Fig. 2 (not shown), a tape is pleated between intermeshing toothed rollers 1 and 2 and passed over the plain axial portion of a feed drum 30 having an adadjacent channelled axial portion. Clips are fed into the channels of the latter drum portion and then pushed out on to the pleats.
Patent GB-183461-A (GB)
Title: Improvements in and relating to rotary cylinder internal combustion engines
IPC: F02B57/10
Filed: 1922-07-18
Abstract: 183,461. Skywing Aircraft Corporation, (Assignees of Harper, W.). July 18, 1921, [Convention date]. Addition to 172,308. Valves, valve-gear.-In a revolving-cylinder engine of the kind described in the parent Specification, and in which the cylinders are inclined in the plane of revolution the inner ends being in advance of the open outer ends, the cylindrical valve, the. details and driving-gear of which are described in the parent Specification, is replaced by a tapered valve 19, the driving-pinion 21 of which, together with the pinion with which it engages, having oblique teeth which, on increase of frictional resistance due to the expansion of the valve on heating, hold the valve away from its seating against the action of a spring 42 connected to the valve by a rod 44 and a ball thrustbearing 45. Dead-air spaces 51, Fig. 4, surround the valve near the exhaust ports 31. The Specification as open to inspection under Sect. 91 (3) (a) comprises also description of the cylindrical valve referred to above and refers to Specification 180,681. This subject-matter does not appear in the Specification as accepted.
Patent GB-586369-A (GB)
Title: Angular velocity modulation
IPC: H03C3/10
Filed: 1944-10-12
Abstract: 586,369. Phase modulation. MARCONI'S WIRELESS TELEGRAPH CO., Ltd. Oct. 12, 1944, No. 19731. Convention date, Oct. 12, 1943. [Class 40 (v)] Phase modulation is produced by a singlevalve crystal-controlled oscillator to two electrodes of which are applied, differentially, the modulating potentials, the inputs or outputs of these electrodes being oppositely phase displaced and a common tank circuit being provided for' the oscillatory output. In one embodiment, Fig. 4, twin grids 14, 14<1> of valve 10 are connected to one electrode of crystal X through phase advancing and retarding condenser C and inductance L respectively. The other crystal electrode is connected to grid 18 acting as the oscillator anode. Modulating potentials from source 30 are applied in.pushpull to grids 14, 14<1> through resistances R, R<1> respectively and the phase-modulated output appears in the tank circuit 20 connected to the main anode 12, electron. coupled to the oscillator anode 18. In a similar embodiment, Fig. 1 (not shown); the valve is a double triode, the two anodes being connected together and to the tank circuit.and one side of the crystal is connected to the common cathode circuit. In a further embodiment, the modulating potentials are applied in push-pull to the two main anodes 121, 21<1>, Fig. 3, of valve 10, these anodes being connected, respectively through phase-shifting condenser C and inductance L to the same end of tank. circuit 20. The crystal oscillator comprises crystal X connected between control grid 14 and grid 18 acting as an anode. In modification, Fig. 2 (not shown), the valve has only one main anode and the nearest grid is connected to act as an anode, the two being connected and modulated in the same way as the anodes 12<1>, 21<1>, Fig. 3.
Patent GB-875420-A (GB)
Title: Parametric amplifier
Inventor: AITCHISON COLIN STUART
IPC: H03F7/04
Filed: 1960-06-03
Abstract: 875,420. Parametric amplifiers. MULLARD Ltd. June 3, 1960, No. 19762/60. Class 40 (9). A parametric amplifier comprises three independently tunable resonant circuits coupled together so as to have a portion common to the three circuits, said common portion including a voltage-dependent reactor, each resonant circuit having independent tuning means located outside the common portion. As shown the common portion consists of a junction of three coaxial lines G, H, J, a voltage dependent capacitor, such as a diode (not shown) being connected between the inner and outer conductors at the common point. The pump frequency (6 Gc/s.) is fed into a waveguide P tunable by the capacitative probe B and thence to the coaxial line G whose centre conductor extends into the guide as a probe. The cut-off frequency of the guide is sufficiently high that the signal and idler frequencies (2.8 and 3.2 Gc/s.) are reflected therefrom. The signal frequency is applied to a waveguide S tunable by the probe A, and thence by a band-pass filter E, which rejects the pump and idler frequencies. Coaxial line I tunable by the short-circuiting plunger C resonates at the idler frequency, the filter F which rejects the signal and pump frequencies connecting it to the coaxial line J. The waveguides may be replaced by coaxial lines provided that a suitable filter is included in the case of P.
Patent GB-216738-A (GB)
Title: Improvements in attachments for holding on the lids of teapots, saucepans, hot-waterjugs and the like
IPC: A47J36/10
Filed: 1923-08-02
Abstract: 216,738. Harod, C. H. Aug. 2, 1923. Lids and covers.-Relates to a device for attaching the lid of a teapot, saucepan, jug or like vessel to the handle of the vessel, the device being of such a character that the lid when removed from its seat is supported in a raised position above the handle of the vessel. Fig. 1 shows a spring clip adapted to encircle the knob of the lid, mounted on one element d of a freeto-slide telescopic member the encircling part g of which is shown in Fig. 4. The part g has either projecting pins j or opposite holes for the passage of a bolt o, Fig. 6, adapted to be engaged by the forked upper end m of a clip k adapted to be bolted to the handle of the vessel. Fig. 8 shows another form of device in which a spring loop p is attached to a coiled spring member q disposed within a tubular part r which is adapted to be attached to a clip, such as k, mounted on the handle of the vessel.
Patent GB-664972-A (GB)
Title: Improvements relating to liquid spring shock absorbers
IPC: F16F5/00
Filed: 1949-07-28
Abstract: 664,972. Liquid spring devices. DOWTY EQUIPMENT, Ltd., and CUSSONS, R. C. Oct. 27, 1950 [July 28, 1949], No. 19892/49. Class 108(iii) In a liquidspring type shock absorber, which may be of the kind described in Specifications 560,047 and 560,048, a part of the liquidconfining structure of a single liquidfilled chamber is engaged by the plunger at a predetermined stage during a compression stroke to move the part relatively to the remainder of the liquidconfining structure whereby to increase the rate of liquid compression in the chamber during the remainder of the stroke. In the construction shown in Fig. 1, a hollow plunger 11 is slidable relative to a liquid-filled cylinder 14 which is rigid with an inner cylinder 15 having a communicating port 16 with the main cylinder 14. Glands 12, 13 of the type described in Specification 539,966, [Group XXXVI], retain liquid in the cylinder 14 and an axiallydisplaceable gland 17 retains liquid in the cylinder 15. The gland 17 has a stem 19 which is engageable with a boss 22 on the plunger, at a predetermined point in the compression stroke. In the construction described in Fig. 2 a sleeve 24 is engageable by the plunger 23 after a predetermined degree of its travel, the inner part of the sleeve then entering the cylinder 26 and thus increasing the rate of compression of the liquid therein. Glands 25, 27 are provided between the sleeve, and the cylinder and plunger. In a further construction, Fig. 3 (not shown), each end of a liquidfilled cylinder is glanded for the reception of a respective plunger. One plunger is of lesser diameter than the other and a shoulder on the former plunger engages the respective cylinder-end after a predetermind degree of plunger travel. Further compression of the shock absorber thus results in the cylinder being penetrated by the larger-diameter plunger with consequent increased rate of liquid compression. The plungers in each construction may be provided with heads having damping orifices. According to the Provisional Specification, the plunger of a construction similar to that shown in Fig. 2, may be hollow. A rod extends from the cylinder into the hollow plunger and carries a head slidable therein. The invention is particularly applicable to aircraft designed for deck take-off and for aircraft requiring increased wing incidence for take off.
Patent GB-478277-A (GB)
Title: Improvements in or relating to bleaching wild silk
IPC: D06L4/13
Filed: 1936-07-17
Abstract: Degummed wild silk, e.g. tussah silk, is bleached by subjecting it to the action of an alkaline bleaching liquor, at an elevated temperature, e.g. 40--60 DEG  C., and of pH preferably 9,0--10,5, containing hydrogen peroxide and an ammonium or alkali metal persulphate.  Such bleaching may be preceded or followed by a supplementary bleach, e.g. a preliminary bleaching may be effected with a reducing agent such as sodium bisulphite or by adding some sodium peroxide to the scouring bath or an after-treatment may be effected with an alkali metal hydrosulphite.  In examples: (1) tussah silk, degummed by treatment for 1 hour in an aqueous solution of soda ash and soap, is immersed for 6 hours in a 3 volume aqueous solution at 45 DEG  C. of hydrogen peroxide, containing 1 per cent of potassium persulphate, 1 per cent of trisodium phosphate and 1 per cent of sodium silicate, washed, further treated for \ba1/2\be hour in an aqueous solution at 45 DEG  C. of sodium hydrosulphite, washed and finished; (2) degummed and scoured tussah silk is treated for 1 hour in an aqueous solution at 90 DEG  C. containing sodium carbonate, sodium peroxide and soap, immersed for 5 hours in a peroxide-persulphate solution as in (1), washed and finished; (3) tussah silk, degummed as in (1), is immersed for 6 hours in a 2 volume aqueous solution at 45 DEG  C. of hydrogen peroxide containing 0,5 per cent of potassium persulphate, 0,5 per cent of trisodium phosphate and 1 per cent of sodium silicate, washed and finished. Specification 268,325, [Class 15 (i)], is referred to.
Patent GB-614076-A (GB)
Title: Improvements in electric condensers
IPC: H01G4/02
Filed: 1946-07-04
Abstract: 614,076. Condensers. PHILIPS LAMPS, Ltd. July 4, 1946, No. 20011. Convention date, July 15, 1942. [Class 37] An electric condenser is formed from a single piece of insulating material 1 which has notches 2 separated by ribs 3 provided on each side with a conductive coating 8, the coatings on both sides of each rib being electrically connected to each other by coatings on the portions 5. In one example Fig. 1, a cylindrical piece 1 of quartz or ceramic material is provided with annular or partannular notches 2, preferably by grinding, and metal coatings applied e.g. by immersing the cylinder with its axis horizontal in a metal bath to such extent that the portions 4 remain free of metal, and rotating the cylinder in this position about its axis. Conductors 6, 7 soldered or spot-welded in place may be used to connect alternate rib electrodes. In a second example (Fig. 2, not shown) a rectangular block of insulating material has notches cut or formed in it to provide a number of rectangularshaped ribs, each connected to an unnotched part below one edge only. Both sides and three edges of each rib are coated with metal and alternate ribs are connected either by conductors. as in Fig. 1, or by means of coatings applied on the unnotched part. In a further example (Fig. 3, not shown) the notches and ribs have the shape of a segment of a circle, the notches preferably being formed by means of a grinding disc, forced during grinding into the top surface of an insulating block. The metal coatings may be covered with a protecting layer of quartz, varnish, or enamel, and are preferably of precious metal.
Patent GB-148126-A (GB)
Title: Manufacture of tanning agents and the application thereof
IPC: C14C3/08
Filed: 1920-07-09
Abstract: Synthetic tanning-agents are prepared by coupling by means of an appropriate atom or group two different aromatic compounds, (1) an aromatic oxy-compound, or metallic salt thereof, capable of being coupled with a diazo compound, and (2) a sulphonic acid of an aromatic hydrocarbon, or a metallic salt thereof.  If necessary, the product is solubilized by introducing sulphonic acid groups during or after the coupling.  According to examples:-phenol is heated with sulphuric acid, then naphthalene sulphonic acid and phosphorus peutoxide are added and the mixture heated further; crude cresol is sulphonated by sulphuric acid, anthracene-2-sulphonic acid is added, and then sulphur chloride, and the mixture heated; sulphur chloride is added to a mixture of phenol and naphthalene sulphonic acids and the mass heated with sulphuric acid.  The products are worked up by dissolving in water, filtering, and partially neutralizing with alkali.  Other condensing or coupling agents may be used, and other sulphonating agents, such as chlorsulphonic acid, sodium sulphite or bisulphite or formaldehyde bisulphite.  The products are used in tanning either alone or mixed with vegetable or mineral tanning-agents.  The Specification as open to inspection under Sect. 91 (3) (a) describes also the preparation of a tanning-agent by heating a mixture of sodium phenol-p-sulphonate and sodium 1-naphthylamine-6-sulphonate with formaldehyde solution; this subject-matter does not appear in the Specification as accepted.
Patent GB-1427634-A (GB)
Title: Agcl-nucleated glass-ceramic articles
IPC: C03C10/00
Filed: 1974-05-07
Abstract: 1427634 Glass-ceramic article CORNING GLASS WORKS 7 May 1974 [11 May 1973] 20027/74 Heading C1M A glass-ceramic article, which may contain 0-2% by weight of alkali metal oxides and a total of 0-3% by weight of MgO, CaO and SrO, each said oxide being not more than 2% by weight, exhibits a thermal expansion coefficient (25-900‹ C.) of 0-25 x 10<SP>-7</SP>/‹ C., and has a crystal content greater than 75% by weight, the predominant crystal phase being zinc petalite and/or #-quartz solid solution, the said crystals being substantially uniform in size and of maximum diameter 1 micron, the article having a uniform composition across its crosssection and the glass-ceramic consisting essentially, to an extent of at least 90% by weight (weight percent on the oxide bais) of 10-20% ZnO, 10-20% Al 2 O 3 , 50-75% SiO 2  and an amount of AgCl sufficient to nucleate the said crystals (e.g. 0À1-1%). The product is preferably opaque. The glass-ceramic may also comprise 0-5% BaO; 0-2% TiO 2 ; 0-1% As 2 O 3 ; 0-6% AlCl 3 ; and 0-5% in total of PbO, P 2 O 5 , B 2 O 3  and/or BeO. In forming the glass-ceramic a suitable batch is melted, the melt cooled to within or just below the transformation range and simultaneously shaped to form a glass body, the body heated to 775- 950‹ C. to crystallize the glass, and the crystallized body cooled to room temperature. The crystallization preferably comprises heating the glass body to 725-800‹ C. for 2-6 hours for nucleation, and then heating to 800-950‹ C. for 1-8 hours for crystallization. Preferably the nucleation/crystallization heating is not at more than 10‹ C./min. (e.g. 3-5 ‹C./min.).
Patent GB-678440-A (GB)
Title: Control systems for internal combustion engines
IPC: F02D9/00
Filed: 1946-05-06
Abstract: 678,440. Fluid-pressure servomotor-control systems. BENDIX AVIATION CORPORATION. May 6, 1946 [May 29, 1945], No. 20047/51. Divided out of 678,361. Drawings to Specification. Class 135. The subject-matter of this Specification is identical with that described in Specification 678,361, but the claims differ. Specifications 678,396, 678,397 and 678,398 also are referred to.
Patent GB-780363-A (GB)
Title: Servo device
Inventor: RAPP GEORGES
IPC: G05D3/18
Filed: 1955-07-11
Abstract: 780,363. Electric correspondence control systems. S.I.R.E.L.E.C.July 11, 1955, No. 20065/55. Class 40 (1).. In an automatically balanced differential potentiometer system the D.C. error voltage applied to terminals m, n (Fig. 3) is amplified by push-pull valves 10, 101, combined in transformer 14 with an amplified first derivative voltage obtained from potentiometers 12, 12<SP>1</SP> and fed to the centre points of the secondary windings of transformers 18, 181 with an alternating voltage on their primaries, so that when the secondary windings are connected to two push-pull amplifier valves 16, 161 and 17, 17<SP>1</SP> the anode currents consist of a train of pulses whose phase position relative to the alternating voltage is determined by the magnitude, rate of change and sense of the error voltage at m, n. A 90-degree phase shift with zero error voltage is obtained by R.C. stages 19, 191. The pulse trains are fed to the grids of two pairs of thyratrons 7, 8 and 71, 8<SP>1</SP> (Fig. 1) whose anodes are connected to the alternating voltage source, so that the anode currents passing through opposed field windings 9, 91 of a motor 4 determine the direction of rotation, and cause the motor 4 to adjust potentiometer 3 to rebalance the system.
Patent GB-755472-A (GB)
Title: Improvements in or relating to road spraying machines
IPC: E01C19/17
Filed: 1954-07-09
Abstract: 755,472. Road spraying apparatus. WIBAU, WESTDEUTSCHE INDUSTRIE-UND STRASSENBAU-MASCHINEN GES. July 9, 1954 [July 13, 1953], No. 20166/54. Drawings to Specification. Class 107. A tar &c. spraying machine for roads has a flow meter in the spray supply pipe to meter the flow. If desired the meter may also include an indication of vehicle speed, the displays being on concentric scales by independent pointers. Specification 732,165 is referred to.
Patent GB-1150901-A (GB)
Title: Process for Simultaneously Obtaining Epichlorohydrin and Glycerol from Allyl Alcohol
Inventor: BRENMAN ARTUR
IPC: C07D301/26
Filed: 1966-05-06
Abstract: 1,150,901. Glycerol; epichlorohydrin. RUMANIA, MINISTRY OF INDUSTRIAL CHEMICALS. 6 May, 1966, No.20189/66. Heading C2C. In a process for the co-production of glycerol and epichlorohydrin from a mixture of glycerol mono- and di-chlorohydrins obtained by hypochlorination and chlorination of allyl alcohol, the mixture of glycerol chlorohydrins is subjected in a single stage to hydrolysis and dehy. drochlorination with a quantity of aqueous alkali equivalent to the chlorohydrin and HCl content of the solution, the epichlorohydrin obtained from glycerol dichlorohydrin being removed from the reaction zone as it is formed by means of an inert gas or steam, the hydrolysis of the monochlorohydrins being continued without further addition of alkali until glycerol is obtained. The term " alkali " is defined as meaning the hydroxides and carbonates of alkali and alkaline earth metals. The initial reaction mixture is obtained by reaction of chlorine and allyl alcohol in dilute aqueous solution, e.g. 5-50% alcohol by wt. of solution. In examples, an aqueous solution of NaOH and Na 3 CO 3  is used as the alkali in an amount of 3% by wt., excess calculated on total chlorine.
Patent GB-571513-A (GB)
Title: Improvements relating to ventilating apparatus
IPC: F24F7/02
Filed: 1943-12-03
Abstract: 571,513. Ventilators. COLLINS, J. N. Dec. 3, 1943, No. 20200. [Class 137] Ventilating apparatus comprises outlet and inlet passages d, g associated with a common reversible suction fan unit b and controlled by the alternative setting of a damper h. A subsidiary exhaust near the building roof k is formed a venturi annulus f at the base of the funnel d.The lateral inlet g may have a heater j.
Patent GB-692006-A (GB)
Title: Improvements in or relating to engine starter drives
IPC: F02N15/00
Filed: 1951-08-28
Abstract: 692,006. Turning-gear. BENDIX AVIATION CORPORATION. Aug. 28, 1951 [Aug. 30, 1950], No. 20292/51. Class 7 (v). In an engine starter drive comprising a power shaft 1, a driving head 2 fixed thereon and having a radial shoulder 7, 8, an anchor plate 12 with a slot 13 non-rotatably mounted on the driving head and seated against the shoulder, a screw shaft 4 slidably journaled on the power shaft 1, having a pinion on one end movable therewith into and out of mesh with an engine gear 5, a nut 16 threaded on the screw shaft and having a flange 17 with a slot 18 therein, and a coiled spring 15 surrounding the head 2 and nut 16 and having out-turned ends anchored in the slots 13, 18, there is provided a barrel 21 which surrounds the spring, retains the spring ends in the slots, and limits the separation of the anchor plate 12 and flange 17 so as to maintain the spring 15 under initial compression. A thrust washer 26 located on the shaft 1 between the head 2 and screw shaft 4 serves both to arrest the demeshing movement of the screw shaft and as an abutment for the nut 16 when it is forced leftwardly by the screw-jack action of the screw shaft and nut after the pinion has meshed with the engine gear 5. A counterweight 27 journaled on the pinion hub 28 is pressed against the pinion by a spring washer 29, the counterweight serving both as a pinion rebound check and to assist in the traversal of the pinion and screw shaft towards'the engine gear; a detent 32 is provided for normally maintaining the screw shaft and pinion in the idle position. Upon the engine being cranked, the spring 15 wraps down on the cylindrical surfaces of the nut 16 and head 2 and is supported thereby; when the engine starts, the pinion and screw shaft 4 are returned to the idle position shown with the end of the screw shaft abutting the washer 26. The counterweight continues to rotate until its momentum is dissipated, the frictional torque exerted thereby holding the screw shaft and pinion in the demeshed position.
Patent GB-1337828-A (GB)
Title: Catalytic device for use with a spark ignition internal  combustion engine
IPC: F02M27/02
Filed: 1971-04-19
Abstract: 1337828 Treating I. C. engine charge HYDRO-CATALYST CORP 19 April 1971 [29 Jan 1970 15 Jan 1971 20361/71 Heading F1B A device adapted to be mounted between a carburetter and an engine intake passage comprises one or two foraminous members 26 and 28, e.g. wire cloth, felted metal fibres or sintered powdered metal, and a support gasket 30 of electrically insulating material, e.g. nitrile rubber with asbestos fibre filler. The members 26 and 28 have a surface of hydrogen ion forming catalyst, e.g. platinum, nickel or cadmium, and the openings in the members correspond to those of 20 by 20 to 100 by 100 mesh with a percentage of open area between 30 and 60. The members 26 and 28 are of dished form to provide a tortuous path therethrough for the mixture from the carburetter and may be formed of catalyst or the catalyst may be coated by electro-plating or immersion on an iron, steel, copper, aluminium or copper or aluminium alloy base.