baber/WOPTO huggingface dataset:
Patent GB-380131-A (GB)
Title: Improvements in apparatus for molding tubular or hollow articles
IPC: B29D23/24
Filed: 1931-06-11
Abstract: 380,131. Moulding hollow articles. STANLEY, A. H., 88, Chancery Lane, London.-(Potter, W. W. ; Pawtucket, Rhode Island, U.S.A.) June 11, 1931, No. 17038. [Class 87 .(ii).] Apparatus for forming hollow articles, such as inner tubes for pneumatic tyres, comprises two relatively movable members 11, 13 connected by an annular flexible impervious wall 18 of concavo-convex section clamped to annular members 10, 12 which contain a number of passages 15 from which the air can be exhausted and which open out against the exterior of an annular blank and hold it firmly while air is exhausted from the chamber formed between the wall 18 and the blank as the members 11, 13 approach one another under the action of the hydraulic ram 14. The passages 15 are connected by channels 16 to a hose 17 which communicates with a vacuum pump. The wall 18, which is preferably of rubber, has a hose 20, which communicates with a vacuum pump, inserted in its centre, or alternatively the wall 18 may be perforated and surrounded by a metal sleeve carried on the fixed member 11. As the member 13 moves up to the member 11, the wall 18, and the annular blank belly outwards and the opposite edges of the blank are finally pressed together and cut off by the rings 10, 12.
Patent GB-1104121-A (GB)
Title: Internal combustion engines
Inventor: EHRLICH JOSEF
IPC: F02B25/00
Filed: 1964-04-24
Abstract: 1,104,121. Two-stroke engines. BRISTOL SIDDELEY EHRLICH ENGINEERING Ltd. May 4, 1965 [April 24, 1964], No. 17095/64. Addition to 824, 673. Heading F1B. The two-stroke engine of Specification 824, 673, comprising exhaust port 13, main scavenging ports 14, and additional entry ports 15 associated with reservoirs 15', is modified by making the volume of the reservoirs adjustable by means of adjustable pistons 17. The pistons may be clamped in their adjusted positions by a clamping nut 20 which squeezes the end of a guide 19' against the rod 18. In Fig. 2 (not shown) the pistons are spring-loaded and adjusted manually by a cable device which may be operated directly by a knob, or from the throttle operating linkage through a cam, or by a centrifugal governor. In a further modification the pistons are adjusted automatically by the pressure in the exhaust passage.
Patent GB-1474329-A (GB)
Title: Transmission line termination circuits
IPC: H01L27/04
Filed: 1975-04-25
Abstract: 1474329 Impedance matching circuits; integrated circuits INTERNATIONAL BUSINESS MACHINES CORP 25 April 1975 [26 June 1974] 17157/75 Headings H1K and H1W In order to prevent disturbing voltage reflections from the load circuit of a transmission line, the line is terminated by a pair of series connected non-linear impedances biased to their high-impedance state, the line being connected to the common connection between the impedances. As shown, the driven circuit comprises series-connected FET's 16, 18 with gate electrodes connected in common to the end of a line 14 having a propagation speed of e.g. 2 ns per foot. The FET's present a low capacitative reactance to the line, equivalent to an open circuit; this causes voltage reflections which may result in a negative voltage appearing at the input of the line in response to a positive pulse. Such negative voltage may cause the substrate junctions of the driving transistors (not shown) to be forward biased and hence rendered inoperative. It is shown in the specification that if the line is terminated by diodes D1, D2 the input voltage does not go negative. One or both of the diodes may be Schottky diodes. Figs. 4 and 10 show the diode circuit 20 in integrated circuit form.
Patent GB-988387-A (GB)
Title: Improvements in or relating to decollator units
Inventor: GOREHAM PETER ERNEST
IPC: B41L1/00
Filed: 1962-05-04
Abstract: 988,387. Slitting apparatus. LAMSON PARAGON Ltd. May 6, 1963 [May 4, 1962], No. 17183/62. Heading B4B. [Also in Division B6] In a decollating unit a composite stack of stationary forms 3 is fed from a central support 2 over friction feed rollers 10 to two stacks 7 on either side of the unit. The interposed carbon web is wound about two parallel bars 13 attached to a rotating disc 12 driven by the same motor driving the feed rollers. A slitter unit 17 for removing the perforated edges of the forms is pivotally mounted to the unit and can be positioned for operation, as in Fig. 4, for slitting the edges of the forms when they are fed in a continuous fashion from one side stack 7 to the other stack 7, the forms having previously been decollated. The slitter includes a pin belt feed 27 and longitudinal slitting knives 26. Specification 988,388 is referred to.
Patent GB-695719-A (GB)
Title: Improvements in the colouring of cellulose ester and ether textile materials
Inventor: OLPIN HENRY CHARLES
IPC: D06P3/40
Filed: 1950-07-10
Abstract: Textile materials of cellulose esters or ethers are dyed with a dyestuff containing an acid group, by steaming them after mechanically impregnating with a solution of the dyestuff containing a water-soluble thiocyanate and urea.  The textile material may contain from 3 to 7 per cent of ammonium thiocyanate and from 8 to 15 per cent of urea before steaming.  Suitable dyes are the acid wool dyes and some direct cotton dyes.  In an example, cellulose acetate fabric is printed with a thickened paste containing Solway Green G150, urea and ammonium thiocyanate, dried, and steamed at 225 DEG  F.
Patent GB-1510691-A (GB)
Title: Electronic singing suppressor device
IPC: H04R3/02
Filed: 1975-04-25
Abstract: 1510691 Singing suppression ELEKTROAKUSZIIKAI GYAR 25 April 1975 [5 June 1974] 17319/75 Heading H4J A variable delay line (Fig. 3) is inserted in a path between a microphone and loud-speaker, a control input of the line being fed by the output of a modulator 54 (Fig. 2) which receives as its inputs signals f s  and f y  from an auxiliary generator and control generator respectively. The auxiliary generator 52 is arranged to produce a square wave of frequency f x  less than 20 Hz. The control generator 53 produces an output which is of variable frequency and/or amplitude. It may produce a sawtooth type waveform, or a waveform with a random waveform and of less than 20 Hz. Alternatively the control generator may be in the form of a signal converter transforming the input audio frequency signal from the microphone. The temporal shape, value and frequency of the control generator may be adjustable in order to match the arrangement to the needs of a particular auditorium.
Patent GB-281743-A (GB)
Title: Improvements relating to electricity meters
IPC: G01R11/04
Filed: 1926-07-12
Abstract: 281,743. Ferranti, S. Z. de, and Ferranti, Ltd. July 12, 1926. Drawings to Specification. Casings for meters. - In order to prevent tampering with a meter, the removable cover is formed of non-magnetic and undrillable metal such as manganese steel or an alloy containing 87 per cent of cast iron, 9 per cent of manganese, and 4 per cent of copper. Holes for screws &c. may be produced by punching or by coring during casting, and may be filled with mild steel plugs riveted in. The base may be formed of machinable metal which is capable of being hardened locally at the desired regions during casting, for instance non-magnetic machinable cast iron may be employed. Alternatively the base may be formed of non-magnetic undrillable cast iron alloy as described above, or a non- magnetic stamping of manganese steel may be employed. Blocks of machinable metal are riveted in where required for carrying the internal parts of the meter. Alternativey shields of undrillable metal such as manganese steel are secured within a machinable base so as to protect the vulnerable parts of the mechanism.
Patent GB-441444-A (GB)
Title: A method of continuously feeding a web of fabric in open state into a treating liquid and a device for carrying out the method
IPC: D06B3/16
Filed: 1935-06-19
Abstract: <PICT:0441444/IV/1> Web material is fed in open width into a liquid bath, such as a dye bath, by a liquid stream originated below the surface of the bath and thrown simultaneously against both sides of the fabric. An arrangement for feeding a web from a roll 12 to supporting rods 4 of a conveyer 3, by which it is conveyed in folds through a bath, comprises a pair of boxes 5 each with opposed downwardly extending vanes 8, 9 between which the web is drawn by issuing streams of liquid supplied through pipes 7, 7<1>.  If desired, the streams of liquid from the boxes 5 may each be divided into two parts, the upper portion flowing upwardly to effect a better removal of air from the liquid, while the lower portion is directed downwards to feed the web into the bath.  In a modification of this, the outlet of the box may be made slightly higher than the liquid in the bath by an amount which may be adjusted, by raising or lowering the walls of the boxes 5, over which the entering liquid overflows, so as to set up flow towards the ends of the boxes to keep the web open.
Patent GB-114995-A (GB)
Title: Improvements in or relating to Change-speed Mechanism.
Inventor: FEHR EDMUND
IPC: F16H61/28
Filed: 1917-11-28
Abstract: 114,995. Fehr, E., and Reimann, R. Nov. 28, 1917. Switches, quick - action; actuating. - In variable speed toothed gearing of the kind comprising parallel main and lay shafts, expanding clutches within the wheels are operated by coupled spindles sliding within the hollow shafts and operated by electromagnetically - controlled friction gearing driven from the driving-shaft. The driving-shaft A carries a gear-wheel F gearing with a wheel J on a lay-shaft E carrying a rigid wheel O gearing through an idle pinion with a wheel I loose on the driven shaft C. Wheels K, L, loose on the shaft E, gear with wheels G, H, rigid on the shaft C. Clutches K<1>, L', F', I<1>, preferably of the kind described in Specifications 113,940 and 113,941, [both in Class 80 (ii), Gearing, Variable - speed &c.], are put into action for first and second speeds, solid drive, and reverse, respectively, by spindles P, Q sliding in the hollow shafts and connected by a yoke S screwing on a rod T rotated bv a shaft G<3> and chain and bevel gearing from a worm wheel F<3>. Friction wheels E', E<2> may be moved by electro-magnets E<3>, E<4> into engagement with the driving fly-wheel B to rotate a worm gearing with the worm-wheel F' either in the forward or reverse direction, the spindles P, Q being thus actuated in the direction desired. In order automatically to stop the movement of the spindles at the required points, a cut-out switch H<7>, formed in two parts with conducting segments L<2>, L<3> (Fig. 4) is arranged in series with the magnets E<3>, E<4>. The shaft G<3> is screw-threaded and engages a nut H<2> carrying a rack H<3> driving a star-wheel H<4> on the switch spindle. Brushes T<1> - - T<10> are connected up through hand-switches M<1> - - M<8> to the magnets E<3>, E<4> and to a battery J<1>, as shown in Fig. 4. Upon closing the appropriate hand-switch M<5> - - M<8> or M<1> - - M<4>, current passes to the magnet E<3> or E<4> respectively, the shaft G<3> is rotated and the switch H' is turned until the brushes in circuit pass from the switch segments, when the current is broken and the friction wheel is released from the flywheel B. The switch M<2> is used to bring the speed to neutral from any of the forward speeds. A second star-wheel H' on the switch spindle engages a spring arm H<8> and ensures that the switch is turned far enough to engage the segment with the next pair of brushes.
Patent GB-872623-A (GB)
Title: Improvements in windscreen wipers
IPC: B60S1/34
Filed: 1959-05-23
Abstract: 872,623. Windscreen wipers. DUDLEY, W. May 5, 1960 [May 23, 1959], No. 17651/59. Class 138(1). The driving mechanism for oscillating a windscreen wiper arm 6 comprises a clutch having dog teeth 7 on a driving member 2 in driving engagement with notches 7a in a driven member 2a secured to the arm 6. The teeth 7 disengage from the notches 7a when the frictional resistance to the movement of the wiper blade exceeds a predetermined amount, and a roller 12 carried by an arm 4 on the member 2 engages a V-shaped abutment member on the wiper arm 6, to move the latter away. from the screen to relieve the pressure on the wiper blade. In an alternative construction the disengagement of the clutch causes the wiper arm to be pivoted away from the windscreen by the engagement of a pin thereon with an arcuate abutment secured to the windscreen. In a further embodiment the wiper arm is pivoted away from the windscreen by the engagement therewith of an abutment carried by the driving member of the clutch when this is moved axially on disengagement of the clutch.
Patent GB-1486175-A (GB)
Title: Apparatus for washing stack gases
IPC: B01D47/06
Filed: 1976-04-30
Abstract: 1486175 Washing stack gases J W NICHOLSON 30 April 1976 17721/76 Heading B1R Apparatus for washing stack gases from a stack 10 comprises a hollow housing 12 supported on standards 24 in a horizontal position across the top of the stack 10 with an inlet opening 26 to receive the gases an outlet at one end of the housing 12 for clean gas and a blower 42 at the other end of the housing 12 for forcing air through inlet opening 38 into the housing and across the stack, a drain outlet 28 for removal of washing liquid, a plurality of baffles 54, 62, 66, 72, 76, 78, 80, 82, 84, 86 and 90 arranged transversely to the gas flow to produce a spiralling zig-zag flow path, and a plurality of spray nozzles 100, 116 spraying washing liquid downwardly in and nozzles 106, 112 spraying liquid across the housing 12. being fed from conduit 96 via manifolds. Baffles 54 and 66 are pivotably mounted on a horizontal axis and extend over the whole width of the housing but only part of the height. Baffles 62 and 72 are mounted on universal couplings and extend over the whole height of the housing but only part of the width. The remaining baffles are fixed and centered from the top and the bottom of the housing alternately to provide the zig-zag path, except the final three which extend from the top. Louvres 46 in opening 38 control the flow of air and the induction effect over the stack 10.
Patent GB-1322298-A (GB)
Title: Voltage converter for an antiskid logic element
IPC: B60T8/60
Filed: 1972-04-17
Abstract: 1322298 Antiskid braking systems SOC ANON DBA 17 April 1972 [4 May 1971] 17722/72 Heading F2F [Also in Divisions G1 and H3] The speed of a wheel is sensed by a toothed disc D (Fig. 1) rotating with the wheel and a pick-up S to produce a pulse train whose frequency is converted in a first unit P to a proportional D.C. voltage and in a second unit IP to an inversely proportional voltage. A diode R ensures that the higher of the two voltages is fed to a logic circuit L controlling a braking system for the wheel. The noise-to-signal ratio is thus considerably reduced at low speeds. Apparatus as above may be associated with each wheel of a vehicle, each connected through a diode D 1 -D n  (Fig. 3) to a transistor T which selects the lowest input voltage and feeds it to the logic circuit L. Thus the signal from a locked wheel is overridden and the driver can stop the vehicle as if the antiskid device does not exist.
Patent GB-1001526-A (GB)
Title: Cellulose-based films
Inventor: LAWTON GEOFFREY
IPC: C08L1/00
Filed: 1963-05-06
Abstract: A reaction product of 1 mol. propylene glycol and 2.5 mol ethylene oxide is made by charging a stainless steel batch reactor, equipped with a rotary stirrer and steam heating and cooling facilities, and previously purged with nitrogen, with 76 parts propylene glycol. 0.15% by weight of potassium carbonate as catalyst, based on the glycol, is added and the temperature raised to 100 DEG  C.  After solution of the catalyst, the nitrogen is vented and 100 parts ethylene oxide added in such a manner that the temperature is kept at 115 DEG  to 120 DEG  C., allowing a maximum pressure of 3.5 kg./cm2. Stirring of the reaction mixture is continued at this temperature until the pressure drops to about 0.35 kg./cm.2, and the resulting product is cooled, neutralized with ortho-phosphoric acid and filtered.  It is found to have a molecular weight of 187, specific gravity 1.087 and viscosity 59.1 cs. at 20 DEG  C.  Reaction products of propylene glycol with alkylene oxides in general are also mentioned, propylene and butylene oxides being specifically mentioned. From 1 to 5 mols. of alkylene oxide per mol. of propylene glycol may be used.ALSO:A regenerated cellulose film is impregnated with a propylene glycol-ethylene oxide reaction product and a urea formaldehyde anchoring resin and is then coated on both sides with a nitrocellulose based coating.  In general, cellulose-based films comprising cellulose, regenerated cellulose or esters thereof, and a humectant which is a reaction product of propylene glycol and an alkylene oxide may be so treated.  The humectant may be a reaction product of 1-5 mol. alkylene oxide, especially 2,5 mol. alkylene oxide, per mol. propylene glycol, and a reaction product of propylene glycol and ethylene oxide is preferred, suitably in a proportion of 1-25% by weight of the film, especially 5-15%.  Propylene oxide and butylene oxide are also specified.  In addition to the humectant, the film may comprise glycerine, urea, dyes, anchoring resins, fillers and/or extenders. Specified cellulose derivatives are cellulose nitrate, acetate, propionate, butyrate, acetate-propionate, acetate-butyrate and acetate-nitrate.  Incorporation of the humectant in the film may be carried out following washing, desulphurization and bleaching of the film in the casting machine, by passing the film through a tank containing a dilute solution of the humectant.
Patent GB-102731-A (GB)
Title: Improvements in and connected with Corset Reinforcements.
Inventor: ELLALINE LAWRENCE
IPC: A41C1/06
Filed: 1916-12-11
Abstract: 102,731. Lawrence, E. Nov. 8, 1915, [Convention date]. Corsets; stiffeners.- Stiffeners for corsets are made of wire which is twisted, woven, ur plaited and covered with rubber and vulcanized. Strips 22, Fig. 5, cut from a sheet thus made, are perforated for ventilation. The invention is shown applied to a corset consisting of skirted sections 1 - - 4, Fig. 1, connected by elastic strips 18 at the sides and having stiffened bust flaps 12 fastened by eyelets 14 and buttons 16. An elastic belt is inserted in the corset fabric at the waistline.
Patent GB-1389937-A (GB)
Title: Process for the production of cured moulded articles made from  epoxy resins
IPC: C08G59/42
Filed: 1972-04-18
Abstract: 1389937 Curing epoxy resins CIBA-GEIGY AG 18 April 1972 [22 April 1971] 17876/72 Heading C3B Cured moulded articles are prepared by mixing: (I) an uncured epoxy resin having an epoxide content of at least 2 equivalents per kg. with (II) a preformed mixture of a polycarboxylic acid anhydride and a polyhydric phenol containing 5-60% by wt. of the phenol (based on anhydride); the sum of equivalents of phenol plus anhydride are 70-100% of the epoxide equivalents of I. At least one of I and II contain a catalyst for the epoxide-anhydride reaction. I may be a diglycidyl ether of bisphenol A having 5-5À8 epoxide equivalent per kg. II may be a mixture of a methylendomethylene-tetrahydrophthalic anhydride and bisphenol A.
Patent GB-1346686-A (GB)
Title: Machine tool having a screw and nut mechanism for lifting and  lowering of movable machine parts
IPC: B23Q5/40
Filed: 1971-05-28
Abstract: 1346686 Feed screw KOVOSVIT NARODNI PODNIK 28 May 1971 [15 June 1970] 17921/71 Heading B3B [Also in Division F2] A machine tool having a screw and nut mechanism for the lifting and lowering of movable machine parts, e.g. a cross rail of a jig borer or a milling machine knee, comprises a multi-start threaded screw 1 carrying a first and a second nut 5, 2 respectively, the nuts being interconnected by dogs 4, 6 to prevent relative rotation but enable relative axial movement, the first nut engaging a first thread or a first set of threads of the screw and the second nut engaging a second thread or a second set of threads of the screw, the first nut 5 being in contact with a supporting piston 7 contained in a cylinder 8. The cylinder may be a body fixed to the movable machine part when the screw supports the said part in compression, or formed in a hollow in the said part (Fig. 3, not shown) when the screw supports the said part in tension. When it required to move the part the cylinder is pressurized and its weight is transferred from the second nut 2 to the first nut 5 threads so that wear occurs on the threads that take no part in the final positioning of the movable part.
Patent GB-790928-A (GB)
Title: Improvements in and relating to spectrometers
Inventor: MARTIN ALBERT EDWARD
IPC: G01J3/06
Filed: 1955-06-21
Abstract: 790,928. Spectrometers. PARSONS & CO.. Ltd., C. A. June 7, 1956 [June 21, 1955], No. 17936/55. Class 97(1) The plane ruled diffraction grating P of a spectrometer is rotated about an axis A by engagement of the circular contour of a body C with a straight line B attached to the grating at its pivoted axis, the body C being moved along a straight guide F by a screw M so that the centre of curvation O of its circular surface passes through the axis A. By choosing suitable dimensions an exact linear relationship may be established between the turns of the screw and the reciprocal of the wavelength emerging from the grating in a given direction. In a modification the axis of the screw may be perpendicular to the line OA, the screw engaging a sloping sur- - face on the body C: Alternatively the screw M may engage a pivoted lever which moves the body C.
Patent GB-569040-A (GB)
Title: Improvements relating to textile fabrics
IPC: D06M13/432
Filed: 1940-12-24
Abstract: A fabric for cartridge bags in which after ignition neither flame nor after-glow persists and which does not leave a sticky residue, is composed of regenerated cellulose filaments having a denier of unity or less impregnated with guanidine or a salt thereof, e.g. sulphate, carbonate or metaphosphate.  The fabrics may contain, in addition, silk, wool, or artificial proteinaceous filaments or fibres.  The fabrics or the loose fibres, rovings, or yarns before conversion into fabrics may be treated.  The Provisional Specification describes also the treatment of fabrics and fibres of cellulose esters and ethers, partially saponified cellulose esters, polyvinyl chloride-acetate and superpolyamides with oxamide by impregnation first with an alkaline solution of ethyl oxalate and then with warm aqueous ammonia.  Other impregnants include amino-guanidine, melamine, biguanide, biuret, dicyandiamide, proline, histidine sarcosine, benzoyl glycine, phenyl alanines, aspartic acid, asparagine, parabanic acid, uric acid and its monomethyl derivatives and guanine.  The substances may also be incorporated in the solution from which the filaments are spun.  The fabrics may be used in making curtains, dust sheets, lamp-shades, rugs, carpets, screens, containers and photographic film.
Patent GB-546090-A (GB)
Title: Improvements in syphons
Filed: 1940-12-27
Abstract: 546,090. Syphons. ROBERTS, J. H. Dec. 27, 1940, No. 18156. [Class 69 (i)] A syphon is provided with a liquid seal at each end by turning up the inlet end 6 of an inverted U-tube, and turning up the outlet end 7 which is then turned horizontally at 8 about the plane of the inlet and terminates at 9 above the lower bends of the limbs.