baber/WOPTO huggingface dataset:
Patent GB-168058-A (GB)
Title: Improvements in and relating to centrifugal pumps, compressors and ventilating fans
IPC: F04D13/04
Filed: 1921-08-16
Abstract: 168,058. Ateliers de Constructions Electriques de Charleroi. Aug. 20, 1920, [Convention date]. Casings.-In a centrifugal pump or fan the end plate C at the suction end of the casing B is adapted to be removable through the delivery end H, the suction pipe A being cast on the body B. The plate C bears against a shoulder D and a tight joint E.
Patent GB-1367839-A (GB)
Title: Rotatable element potentiometer and method of producing it
IPC: H01C10/00
Filed: 1972-05-10
Abstract: 1367839 Making potentiometers BOURNS Inc 10 May 1972 [23 Sept 1971] 21703/72 Heading B3A. [Also in Division H1] A process for producing potentiometers comprises moving a thin strip 20, Fig. 1a, of electrically conductive material through a plurality of stations S1-S21 at which respective apparatuses are disposed, perforating the strip at determined distances to provide accurate registration 22, 22a of the strip relative to the apparatuses and to define a unit length of strip corresponding to a potentiometer, punching perforations 24, 25, 28, 30 to successively remove material from the edges of the strip, work-hardening portions of an edge of each unit length, removing material from the workhardened portions to produce a plurality of contact members each integral with the strip, removing material 36, 37 from the strip adjacent an edge to produce a plurality of terminal members 46, 48, 50 each integral with the strip and a respective contact member 42, 40, 44, moulding a housing body member 56 about portions of the contact members and terminal members leaving portions of the members protruding from the body member, producing rotors 60 with conductive and resistive members, producing housing cover members 70, assembling a rotor and cover member to each body member, and severing the potentiometers from the strip by shearing the terminal members 46t, 48t, 50t adjacent an edge of the strip. The strip, which is of annealed alloy, is milled or ground along region 26 for the formation of relatively thin contact members. The workhardening steps include swaging or hammering causing lateral expansion of portions 34. At diestation S11 there is slitting between apertures 28, 30 to form a multi-contact member 40a, 40b, 40c, the separate fingers being trimmed and dimpled at stations S14, S15 and disposed for subsequent engagement with a resistive element. The contact members are then bent away from the plane of the strip prior to moulding the housing body about the members. The rotor 60 comprises insulative material 60r, Fig. 2a, such as fired alumina, an outer conductive element 60a and inner conductive element 60b which engage contact points of respective members 40, 42, 44. Cover 70 is formed with a set of projections (70p), (70q), Figs. 6, 7 (not shown) to precisely locate the rotor and cover to the housing member 56. The upper face of the rotor comprises a flat, circular seat (60s), Figs. 3, 4 (not shown), on which an O-ring seal (62), Fig. 5 (not shown), is seated and is deformed by pressure by shelf 56s to seal the interior of the housing against ingress of foreign material. The cover is supplied with a circular ridge (70r) and ridge formation (70w, 70x, 70y, 70z) which are melted to fusion-unite the housing members. This is done by imparting ultrasonic vibrations to the members while under pressure. The contact members and terminals may be gold-plated by passing the strip 20 through a plating bath. The resistance element (60r) and its connections are of cermet material.
Patent GB-938293-A (GB)
Title: Improvements in or relating to electrophotographic processes
IPC: G03G9/10
Filed: 1960-06-22
Abstract: 938,293. Electrophotographic processes. KALLE A.G. June 22, 1960 [June 27, 1959], No. 21838/60. Class 98 (2). A developer for use in electrophotographic processes comprises a toner formed by a metal resinate (metal salt of a resin acid) which acquires a change of negative polarity when used, and a carrier comprising inorganic substance. An image is formed in a photo-conductive layer of, for example, zinc oxide, selenium, 2,5 - bis [41 - diethyl - amino - phenyl - 1<SP>1</SP>]- 1,3,4 oxadiazole, and this is developed by a toner e.g. zinc, magnesium, calcium, manganese, cobalt, cobalt-lead-manganese, zinc-calcium, zinc resinates sold under the names " Erkazit- Hartz RF," " Magnesium-Hartharz VII2." " Kunstharzl," " Mangan Resinat RM 55," " Kobalt resinat A71," " Kobalt-Blei-Mangan- Resinat " No. 835, " Kunstharz 455," " Erkazit- Zinkkarz 165 (or RF)," respectively and other resinates of iron, copper, magnesium and barium. The melting point of the toner may be lowered by adding (1) phtholocyamines; (2) resins e.g. colophony, dammar, copals and ketone, maleic, alkyd and styrene resins ; (3) waxes such as carnauba, bees, Japan, montan and "A, OP, SOP Wachs," " K, P. S. L. O Gerstofener Wachst " 4) aromatic organic compounds e.g. naphthole, acenaphthene; ophenylenediamine, resorcinol and diphenyl amine. Dyes may be added to the resinates e.g. carbon-black, zinc oxide, titanium dioxide, ultramarine minium, Pigments Red and Green B; dyes containing copper, zinc, magnesium, iron, sodium or potassium such as chlorophyll, copper, zinc or magnesium phthalocyanines; Naphthol Green 5, Toluidine Blue O, Methyline Green B, Acridin Orange 2G, Fanal Red 6B, Fanal Violet LB, Fanal Blue B, Alizarin Blue- Black B, Diamond Black F, Nigrosin, Pigment Deep Black, Auramine, Brilliant Yellow Eosin, Rhodamine B, Sudan Black G. The toners are mixed with carriers e.g. glass, iron, potassium sulphate and chloride, sodium chloride and are applied to the image bearing surface with for example a magnet. The image may be fixed by the application of heat or trichloro-ethylene vapours.
Patent GB-1146826-A (GB)
Title: Novel scrouping agent for bulked multi-filament yarns
IPC: C21C5/28
Filed: 1966-05-17
Abstract: 1,146,826. Polyether compositions. ALLIED CHEMICAL CORP. 17 May, 1966 [18 May, 1965], No. 21840/66. Heading C3R. [Also in Divisions C5 and D1] A composition suitable for use in the treatment of multifilament bulked yarns comprises a solution of pH between 2 and 12 of (a) an aryl compound of the formula in which A. is an acid group, X is hydrogen, a nitrogen base cation or an alkali or alkaline earth metal cation, R is an alkyl group of 1-30 carbon atoms optionally substituted by halogen, carboxyl or alcohol groups and R<SP>1</SP> and R<SP>11</SP> are hydrogen, phenyl or phenoxy and (b) a polyether lubricity additive of the formula R 1 CH 2 (CHR 2 OCH 2 ) n CHR 2 R 3  in which R 1  and R 3  are terminal hydroxyl, terminal hydroxyl esterified with an acid having a linear molecule containing 2-20 carbon atoms or terminal hydroxyl etherified with an alcohol having a linear molecule containing 2-20 carbon atoms, R 2  is hydrogen or methyl and n is an integer of at least 3 with the proviso that the polyether has a maximum molecular weight of 30,000. The acid group of the aryl compound may be a sulphite, sulphate, hypophosphite, phosphate, phosphite or sulphonate group. The composition may be an aqueous solution containing 10-50% by weight of the aryl compound and the weight ratio of the aryl compound to the lubricity additive may be from 1: 1 to 8: 1. The pH may be adjusted by the addition of NaOH, KOH, NH 4 OH, H 2 NCH 2 - CH 2 OH, HN(CH 2 CH 2 OH) 2 , N(CH 2 CH 2 OH) 3 , NH 2 CH 2 CH 2 NHCH 2 CH 2 OH, (CH 3 ) 3 CNH 2 , (CH 3 ) 2 CHNH 2  or a polyoxyethylene alkylamine of the formula in which R is alkyl and x and y are integers of 2-15.
Patent GB-698808-A (GB)
Title: Improvements in or relating to hydraulic control valves
Inventor: BAINES FREDERICK
IPC: F15B13/01
Filed: 1950-09-05
Abstract: 698,808. Valves; hydraulic machines. PLESSEY CO., Ltd. Oct. 9, 1951 [Sept. 5, 1950], No. 21855/50. Classes 69(ii) and 135 In a hydraulic control valve controlling the fluid flow from a pump to exhaust or either one of two delivery passages each containing a non-return valve, a supplementary valve allows fluid to flow from one delivery passage through a branch passage to exhaust when a single delivery passage only is used. As shown, a pump 4 draws fluid from a sump 6 and passes it through the ports 7, 8, in a selector valve 1 when the latter is in neutral position and through a passage 5 back to the sump. When the valve 1 is shifted e.g. to the left by a manually-operated crank 14, which is held in its operated position by a spring-loaded latch 17 engaging the crank, fluid passes via passage 9, check valve 11 and pipe 34 to the top face of a doubleacting piston 18a, the lower face being opened to the sump via pipe 35, check valve by-pass passage 25, port 25b and pipe 26a. Movement of the valve 1 to the right allows fluid via passage 10 to move the piston up, exhaust taking place via port 25a and pipe 26. After the piston has moved, hydraulic pressure from the pump acts on a differential relief valve 16, relieving via pipe 32, chamber 36 and pipe 26, and a secondary fluid pressure acts via pipe 33 on a latch shoulder to withdraw the latch from the crank and allow the valve 1 to return to neutral. By unscrewing a needle valve 13 to open a passage 12 leading from the passage 9 to the sump passage 5, closing the outlet from the passage 9 and connecting the pipe 34 to the sump, the control valve can be used for a single-acting piston. A valve casing cover containing the supply pipe 3, and a cover containing the exhaust pipe 5 may be removed so that several valves may be stacked together for individual operation, the exhaust passage of one connecting with the supply passage of the next.
Patent GB-1419126-A (GB)
Title: Apparatus suitable for dyeing organic material by application of a short goods-to-liquor ratio
IPC: D06P1/92
Filed: 1972-12-11
Abstract: 1419126 Nozzles CIBA-GEIGY AG 11 Dec 1972 [13 Dec 1971] 21913/75 Divided out of 1419125 Heading B2F [Also in Division Dl] Nozzle for atomizing dye liquor [see division D1] comprises a hollow body 28 containing tubular members 31 and 32, the former being threaded to retain the latter in position. The tubular members have apertures 34 and 36 so that liq. can flow from a supply pipe (connected by thread 29) through the tubular members to the annular space 35 surrounding aperture 36. The liquor is then discharged via slits 37 and an outlet 30 of circular cross-section as a mist. The rear end of the nozzle body is provided with a cylindrical filter 33.
Patent GB-647762-A (GB)
Title: Improvements in or relating to dielectric heating apparatus
IPC: B29C65/00
Filed: 1946-07-23
Abstract: 647,762. Dielectric heating. MURPHY RADIO, Ltd., and TOMES, S. R. July 23, 1946, No. 21949. [Class 39(iii)] A flexible electrode for H.F. heating designed to eliminate " gapping " between pressure electrodes comprises a flexible back " comb " 1 of metal, pressure being applied to the ends of the teeth in a direction along their length by springs 4. Rubber or like resilient means may be employed in place of the springs in the holder 3.
Patent GB-829450-A (GB)
Title: Gauge-control system for multi-stand strip mill
IPC: B21B37/52
Filed: 1957-07-11
Abstract: 829,450. Automatic rolling-mill control. UNITED STATES STEEL CORPORATION. July 11, 1957 [Sept. 25, 1956], No. 22051/57. Class 38 (4). The speeds of stand motors 21, 22, and 24, 25 are differentially controlled by an X-ray gauger 42 to maintain a constant thickness of strip emerging from the last stand, the speeds of motors 21, 22 being increased and 24, 25 decreased when the strip is undersized and the converse occurring when the strip is oversized. Servomotor 44 which is controlled by the gauge through a converter unit 43 controls the voltage and polarity of an amplifying generator 46 feeding the field winding 41f of a correcting generator 41. Follow-up is provided by a motor 48, which is directionally controlled by a relay 47, driving a potentiometer wiper 49 in the circuit of a second correcting generator field winding 41f2. The stand motors are controlled through regulating exciters 36, 37, 39, 40, main exciters 31, 32, 34, 35 and generators 26, 27, 29, 30, the middle stand remaining unaffected by the automatic control. The directions of control are achieved by a split field arrangement, Fig. 2, in which two portions of field 46f are shunted by a potentiometer 45.
Patent GB-401249-A (GB)
Title: Improvements in and relating to valve actuating mechanism for dry gas meters
IPC: G01F3/22
Filed: 1933-08-08
Abstract: 401,249. Gas meters. PINTSCH AKT.-GES., J., 71, Andreasstrasse, Berlin. Aug. 8, 1933, No. 22205. Convention date, April 21. Addition to 352,083 and 399,135. [Class 54.] In a gas meter having valve reversing mechanism according to Specification 399,135, the gland provided where the spindle operated by the meter diaphragm passes through the gas chamber wall is relieved from the varying load due to the pressure of the spring d operating the valve-reversing lever 1 by making the parts b<11> of the spindle passing through the wall separate from the part b<1> carrying the bush g of the snap member a. The part b<11> carries a lever k operating by a pin l<1> the bush g and by a link f a lever e. The lever e is attached by the spring d to the lever 1 which carries a snap member 5 co-operating with the snap member a to control the valve operation. The parts b<1>, b<11> are mounted in bearings h, i, the part b<11> being provided with a knife-edged collar o which is pressed by a spring m against a leather or felt sealing disc p on the gas chamber wall.
Patent GB-422280-A (GB)
Title: Improvements in or relating to needlework stands
IPC: A47B3/02
Filed: 1933-08-09
Abstract: 422,280. Stands. CRAMP, R., CRAMP, R. G. W., and CRAMP, B., (trading as CRAMP & SONS, R.), New North Road, Barkingside, Essex. Aug. 9, 1933, No. 22221. [Classes 52 (iii) and 52 (v)] A needlework stand comprises two pairs of legs 2, 3 pivoted at 4 and supporting a bag 7 and table top 13. Each pair of legs is joined by dowel rods 5, 6 and the bag is supported by passing the ends over the rods 6 and securing by resilient spring rods 8 which are sprung into holes formed in the legs. The table top is formed with slots 15 on its sides which slidahly engage with headed pins 16 on the legs 3. The table top when in use limits the spread of the legs, and can also be swung to a vertical suspended position at the side.
Patent GB-299938-A (GB)
Title: Improvements in or relating to pianos
IPC: G10C3/26
Filed: 1927-08-24
Abstract: 299,938. Brasted Bros., Ltd., and Evans, A. L. Aug. 24, 1927. Pianoforte cases. - The volume of sound issuing from a pianoforte is controlled by a fixed apertured panel 1, the apertures 2 being closable by a second apertured panel 5 which, by means of a handle 7, may be moved about a pivot 7 situated at the point from which the apertures radiate.
Patent GB-1361602-A (GB)
Title: Electrolysis of brine
IPC: C25B11/04
Filed: 1971-05-04
Abstract: 1361602 Electrolysis of brine ALBRIGHT & WILSON Ltd 4 May 1971 [8 May 1970] 22427/70 Heading C7B Brine is electrolysed using an anode comprising a base metal supporting member, e.g. of Fe, Cu, Al, Ni, Zn or alloy thereof, having on the anodic surface a layer having a thickness of not more than one tenth of that of the base metal of an anodically passivatable metal of group 5A of the periodic table, e.g. of Ta or Nb. coated with a non-protective thin layer of a platinum metal or alloy thereof, or inert metal or semi-conductive material, e.g. an oxide of a platinum metal and/or mixture of such oxides with oxides of Pb, Mn, Co, Fe, Cr, Ti, Ta, Si or Zr. If the electrode is to be bipolar, either the base metal supporting member itself forms the cathodic surface, being e.g. of mild steel or copper, or may be coated with a protective layer of a material chemically resistant to the catholyte, e.g. of copper. An intermediate layer, e.g. of copper may be between the base member e.g. of mild steel, and the GpVa metal layer. As shown a cell 1, e.g. for producing sodium chlorate, is formed of insulating material, e.g. of PVC or PTFE, containing a stack of bipolar electrodes 3 as described above, and having side inlets (9) to each cell compartment near the base of the cell and means for overflowing of each compartment, is submerged in a reservoir of brine, gas bubbles produced during electrolysis producing an upflow of electrolyte between the electrodes with consequent overflow into the reservoir, and flow of fresh electrolyte into the cell.
Patent GB-1171690-A (GB)
Title: Apparatus for Controlling the Instantaneous Positions and velocities of Movable Elements According to Digital Numerical Commands
IPC: H03M1/82
Filed: 1967-05-15
Abstract: 1,171,690. Machine tool control. GIDDINGS & LEWIS Inc. 15 May, 1967 [3 June, 1966; 19 Dec., 1966], No. 22484/67. Heading G4H. [Also in Division G3] The position of one axis of a machine element 11 is sensed by known means such as a resolver 27 which may for example make one revolution for each 0À1 inch of travel of a lead screw 15 and which produces via a phase shifter 37 a signal angularly displaceable from an input signal B. The output from a tape reader 39 is passed to a known contouring director which divides the information into X, Y and Z channels and admits pulses from a source 21, for example one pulse for each 0À0001 inch of movement required, which by their direction, number and frequency determine the velocity and displacement of the element 11, to a reversible counter 49. Not more than once per cycle of the signal B the signals in the counter 49 are dumped through gates 55 to a storage register 57. The signals B are derived by a decade frequency dividing counter 23 from the source 21. The counts in the register and divider are compared in a known device 59 which produces pulses F which may lag or lead the signal B when the signals from the counters 23, 57 are equal the deviation from the count reference number e.g. 500 in dividing counter 23, being a measure of the phase error. A signal C from the phase shifter 37 is squared and applied together with its complement G to AND circuits 69, 71 which also receive pulses F after passing through a flip flop 63 which is periodically reset by a triangular differentiated signal derived from the G output of shaper 65. The AND outputs cause a positive, negative or zero voltage across a resistor 77 which after passing through a low-pass filter or integrator 87 control a servomotor 13 through an amplifier 19. The workspace ratio of the constant amplitude voltage across resistor 77 is proportional to the angular displacement between the pulses F and the signal C. Separate components (91), (97) (Fig. 3, not shown) may provide the reference wave B and drive the dividing counter 23 which components may cycle with a fixed differential. The counters are preferably arranged in 5421 code but other codes e.g. 8421 may be utilized. When at a cyclic dumping the signal (E) from register 57 goes from below to above (or vice versa) the reference number (D) from dividing counter 23 a pulse F may not appear which may cause the element 11 to overshoot. In a modification, a circuit is described (Figs. 4a, 4b) which inserts a substitute pulse (F<SP>1</SP>) (see Fig. 7, not shown) in any cycle in which an F pulse is absent. Should a spurious F<SP>1</SP> pulse be inserted, this will have no effect if a normal F pulse has been produced. The counters may be arranged in either count up or count down configurations.
Patent GB-622813-A (GB)
Title: Improvements in predictors for directing anti-aircraft gun-fire
IPC: F41G5/08
Filed: 1941-06-27
Abstract: 622,813. Calculating-apparatus. GENERAL ELECTRIC CO., Ltd., FARREN, L. I., and RIVLIN, R. S. June 27, 1941, No. 22519/48. Divided out of 622,184. [Class 106 (i)] [Also in Group XXI] An anti-aircraft predictor comprises electrical apparatus for determining the time derivative of a moving point expressed in Cartesian co-ordinates. The Figure is largely self-explanatory. A variable potential e is impressed on the grid of a valve reactor 6 which controls the output of an oscillator 7, part of which is fed directly to a mixer 9 and the other part through a known delay device 8 to the mixer, where beating occurs and is applied through a low-pass filter 10 to a frequency amplitude converter 11 to produce a de potential proportional to - Specification dt. 622,184 is referred to.
Patent GB-1243114-A (GB)
Title: Improvements in or relating to suction adherent and lifting devices
Inventor: HAID JOSEF
IPC: B66C1/02
Filed: 1969-05-02
Abstract: 1,243,114. Suction lifting devices. J. HAID. 2 May, 1969 [6 May, 1968], No. 22578/69. Heading B8H. A suction lifting device, Fig. 1, comprises a resilient foil 1 having suction cups 2 formed therein. The foil is pressed or rolled on to the object to be lifted to express the air from the cups. To facilitate this, holes or slits, with or without valve flaps, may be provided in the tops of the cups, Figs. 3, 5 (not shown). Figs. 6, 7, 8 (not shown) illustrate various ways in which the foil may be pressed on to and/or released from an object to be lifted. Fig. 9 shows an embodiment in which the holes in the suction cups are sealed by an auxiliary web 18, the air being sucked or pressed from the cups. Grooves 22, Fig. 12, may be provided between the cups to assist the outflow of air therefrom.
Patent GB-317006-A (GB)
Title: Radio system for aerial navigation
IPC: G01S1/02
Filed: 1929-07-23
Abstract: 317,006. Kolster-Brandes, Ltd., (Assignees of Kruesi, G. G.). Aug. 8, 1928, [Convention date]. Directive signalling; aerials ; signalling to aircraft.-For guiding aircraft a fan-shaped field of radio waves is propagated upwardlv from the earth. For this purpose paraboloidal reflectors 28, Fig. 4, with aerials 29 at their fool are arranged as at 21, Fig. 1, preferably at the centre of a landing field 22, so as to produce fanshaped fields 23, 24 preferably mutually perpendicular. The radiation from each reflector may be characteristicallv modulated or coded. In order that the landing aircraft may always fly into the wind, two sets of beam producing reflectors may be provided such as 1 - - 4, 5 - - 8, and 11 - - 14, 15 - - 18, Fig. 2, and energized and modulated according to the prevailing wind. In an alternative arrangement cylindrical parabolic reflectors 41, Fig. 3, are grouped about a central paraboloid 42 the aerials for the former being in the form of a conductor 43 extending, coincident with the focal axis of the reflector and preferably divided into a plurality of half-wavelength sections by reactive phase-shifting means 44, and energized at its potential nodal point. The wave-length of the oscillations employed is preferably four times the focal length of the reflector.
Patent GB-1372167-A (GB)
Title: Method of depositing thin metallic layers
IPC: C23C14/18
Filed: 1973-05-11
Abstract: 1372167 Coating by sputtering COMPAGNIE INDUSTRIELLE DES TELECOMMUNICATIONS CIT-ALCATEL 11 May 1973 [12 May 1972] 22649/73 Heading C7F A substrate is cleaned and sputter-coated in an uninterrupted vacuum firstly with a layer a few tenths of a micron thick of a 4-valent element, secondly with Ni, and thirdly with an oxidationprotective layer. The substrate may be a ceramic, e.g. for a condenser; the first layer may be Ti, Zr, Hf, Si or Ge. In an example the coating layers are (1) 0.1-0.5Á Ti (2) 1-1.5Á Ni and (3) 1Á Au; four succeeding coating chambers are used,the first for coating with Ti, the 2nd and 3rd for coating with Ni and the 4th for coating with Au, and the substrate passes through the series with no change in vacuum conditions.