baber/WOPTO huggingface dataset:
Patent GB-1361021-A (GB)
Title: Timer
IPC: G03B27/16
Filed: 1971-07-15
Abstract: 1361021 Controlling exposure time in printers CHESLEY F CARLSON CO 15 July 1971 [15 July 1970] 33242/71 Heading G2A [Also in Division H3] In a timer for a photographic exposure lamp a capacitor is charged from a constant current supply while shunted by a variable impedance, disconnected from the charging supply and connected to a discharge circuit which energizes the exposure lamp(s), the latter being deenergized when the capacitor has discharged to a predetermined voltage. In Fig.1, the timing capacitor is charged through FET 32 forming a constant current source of value set by resistors 33 and 36. When the start button 213 is pressed, relay 27 is energized to close contacts 220 and energize relay 221 to hold relay 27 via contacts 222 and light the exposure lamp 30 via contacts 332. Photo-cell 24 then becomes conductive and provides a discharge path for capacitor 17. The capacitor voltage is applied to a differential amplifier comprising FET's 161, 162 temperature compensated by resistors 164, 168, 171, 177. A comparator 182 monitors the output of the FET's and at a certain capacitor voltage triggers thyristor 26 to short the relay 27, deenergize relay 221 and extinguish the lamp 24. Resistors 33 and 36 and capacitor 17 are of the decade type Fig.3, (not shown), resistor 33 and capacitor 17 being adjustable to allow for logarithmic changes in illumination to cater for the density of the original to be copied, and resistor 36 being designed for linear changes in exposure time. A mechanical computer Fig.4, (not shown) - (see also Specification 1361022) sets the values of 33 and 17 in accordance with the measured highlight density, and also sets auxiliary components 33a and 17a in accordance with excess density requiring an extra flash exposure. In Fig.2 the main exposure button 260 is pressed to energize relay 240 which holds on via contacts 245 and connects resistor 52 (a component of resistor 36) across capacitor 17. The start button 213 is then pressed and the circuit operates as described above. At the end of the cycle button 261 is pressed to energize relay 241 and connect resistor 53 in place of 52. Operation of the start button 213 then repeats the cycle to give an extra exposure for the highlights. A further flash exposure is given by pressing button 262 to energize relays 242 and 290, connecting resistor 54 in place of 53 and replacing 17, 24 and 33 by 17a, 24a and 33a respectively. The cycle can be interrupted at any stage by the cancel button 335 which shorts relay 27. For colour separation work or when using different halftone screens preset resistors 174 can be brought into the timing circuit by rotary switch 173.
Patent GB-1366406-A (GB)
Title: Active carbon for treating gases vapours or liquids and a method  of using the same
IPC: C01B32/384
Filed: 1972-07-17
Abstract: 1366406 Active carbon; purifying sewage BERGWERKSVERBAND GmbH 17 July 1972 [15 July 1971] 33381/72 Headings C1A and C1C Active carbon is prepared by mixing non- gaseous carbon containing material with 5 to 20% by wt. of the mix of pitch and/or tar extruding the mixture into strands of 1-15 mm. maximum cross-sectional dimension cutting the extruded strands in lengths of 1À5-15 mm. immediately after they leave the extrusion aperture, and coking the resulting lengths at a temperature of 600‹ to 1000‹ C. and activating the coked material with steam at 750-1000‹ C. Preferably the strands have a maximum crosssectional dimension of 3-10 mm. and are cut into lengths of 8 to 12 mm. immediately after leaving the extrusion aperture. The extrusion nozzle preferably has a conical inlet. The strands may be cut so that their cut length is up to 3 times preferably between 1 and 1¢ times their maximum cross-sectional dimension. The particles may be rendered approximately spherical by utilizing a length approximately equal to the cross-sectional dimension and coking in a rotary furnace. The active carbon produced may be used in purifying gases, vapours or liquids using a treatment chamber from which exhausted carbon is withdrawn to a regenerating step and the regenerated carbon recycled. Thus waste water from steam treating sewage sludge which water contains 1800 mg./ litre of organic carbon may be purified by being passed through a bed of such carbon, which may be withdrawn and regenerated with steam at 850‹ C. The loss by abrasion per cycle of regeneration was much reduced.
Patent GB-1437657-A (GB)
Title: Apparatus for production of yarn from natural and chemical fibres
IPC: D01H4/02
Filed: 1974-07-30
Abstract: 1437657 Pneumatic open-end spinning apparatus INSTYTUT WLOKIENICTWA 30 July 1974 [6 Feb 1974] 33531/74 Heading DID An open end spinning apparatus .has a stationary chamber 1 closed at one end by a movable barrier 2 through which is drilled a duct for discharge of yarn and the other end of which is entered with peripheral clearance by a pipe 5 for sucking off air, helical ducts 6 being provided between the inner wall of the chamber 1 and the outer wall of the pipe 5 to introduce air into the chamber, and a duct 4 for introducing raw material, the axis of the duct being either tangential to the chamber wall, Fig. 1 or coincident with the chamber axis, Fig. 3. The ducts 6 may come to the end of pipe 5 or may stop short of it, Fig. 2 (not shown). The lower end of the chamber may also be flared outwards, Fig. 4 (not shown).
Patent GB-794136-A (GB)
Title: Improvements relating to motor vehicle power steering arrangements
IPC: B62D5/24
Filed: 1955-11-23
Abstract: 794,136. Vehicle power steering. DAIMLER-BENZ AKT.-GES. Nov. 23, 1955 [Nov. 23, 1954], No. 33603/55. Class 79(5) [Also in Group XXIV] Power assistance is applied to a motor vehicle steering arrangement, the steering gear of which has a constant reduction ratio of about 1 : 14 to 1 : 16 within a range of about one-half turn of the steering wheel in each direction from the straight ahead position, but the gear has a progressive variation in ratio outside such range whereby the total steering-wheel movement is curtailed by about half a turn or more in each direction compared with the constant ratio in the middle ratio. As shown the steering gear has a worm 2 mounted on the steering column 1, the groove 14 of which has a constant conventional pitch over a rotational angle of about 180 degrees in either direction from the straight ahead position, the end portions of the groove having progressively increasing pitches. The groove 14 is engaged by a roller 13 on a pin 12 to which are pivoted an arm 5 and a link 6, the latter being also pivoted to a steering gear arm 4 carried by a spindle 7 in the gear box 3, and the spindle 7 being connected by a linkage (not shown) to the steerable wheels. The arm 5 of substantially the same length as and parallel to the arm 4 is carried by a pivot 8, connected to a block 10 being slidable in a slot 11 between stops 9, 9<SP>1</SP>, the pivot 8 and block 10 being carried by a lever 17 pivoted at its end 18 to the box 3 and engaging at its end 19 a double control slide valve 20, 20<SP>1</SP>. The slide valve interconnects an oil pump 21 and a double acting servomotor 22, the piston 23 of which is connected to the steering linkage. In operation manual rotation of the worm 2 causes upward or downward movement of the roller 12 to initiate power steering through the lever 17 and slide valve. In the event of failure of the hydraulic system the block 10 engages one or other stop 9, 9<SP>1</SP> to permit normal mechanical steering.
Patent GB-308106-A (GB)
Title: A new or improved holder or receptacle for blue and other prints, drawings, tracings, letterpress and the like
IPC: B42F7/02
Filed: 1928-09-13
Abstract: 308,106. Hobourn, P. L., and Mills, G. T. Sept. 13, 1928. Picture, photograph, and like mounts.-Relates to envelopes for con-. taining and protecting prints, drawings, &c. of the kind having a rigid or semirigid backing and a transparent covering of celluloid, mica, &c., and particularly to means for securing the transparent covering to the backing. The marginal edges 3<b> or the covering 3, which are turned over the backing 2, are formed with perforations 3<c>, and are secured to the backing by pasting strips 5 of paper over them, so that the strips adhere to the backing through the perforations. The whole may be covered with a sheet 6 of paper.
Patent GB-883750-A (GB)
Title: Method of manufacturing stable polymerized emulsion
IPC: C08F20/08
Filed: 1959-10-05
Abstract: Stable aqueous copolymer emulsions comprise a copolymer of a quaternary vinyl pyridinium monomer of the general formula <FORM:0883750/IV (a)/1> wherein R1 is hydrogen, methyl or ethyl, R2 is a alkyl or aralkyl group having from one to twelve carbon atoms in the molecule, and X represents an anion, copolymerized in water with styrene, methyl acrylate, methyl methacrylate, vinyl quinoline, divinyl benzene or a vinyl pyridine, or copolymerized with the monomer containing no quaternary nitrogen and divinyl benzene, the copolymer containing from 0,2 to 5% of quaternary nitrogen. The Specification lists a number of quaternary monomers of which 2-methyl-5-vinyl pyridinumethyl bromide is typical. Polymerization is preferably effected in aqueous medium by applying heat, light or ultra-violet rays or by using an initiator such as hydrogen peroxide, ammonium or potassium persulphate or tertiary butyl hydroperoxide, which may be used in combination with a reducing agent such as ferrous ions, oxalic acid, potassium or sodium tartrate, sodium bisulphite or sodium thiosulphate, or by a combination of such methods.  The emulsions may be added to spinning solutions comprising aqueous solutions of polyvinyl alcohol or to viscose solutions.
Patent GB-1517969-A (GB)
Title: Polythioetherimides
IPC: C08G73/10
Filed: 1975-08-13
Abstract: 1517969 Polythioetherimides GENERAL ELECTRIC CO 13 Aug 1975 [23 Aug 1974] 33741/75 Heading C3R Polythioetherimides consist essentially of units where R is a C6-30 aromatic radical and R<1> is (a) a C6-20 aromatic hydrocarbon radical or halogen-substituted such radical; (b) C2-20 alkylene or cycloalkylene; (c) C2-8 alkyleneterminated polydiorganosiloxane; or (d) two phenylene radicals linked via C1-5 alkylene, CO, SO2, O or S. They may be prepared by reaction of an appropriate dianhydride and diamine or by Ha or NO2 displacement between a bis halo- or nitro-phetalimide and dithiophenoxide salt.
Patent GB-1440824-A (GB)
Title: Coupling having an electrical connector for bridging a flexible  electrically insulating coupling member such as the coupling  plate in the divided steering shaft of a motor vehicle
IPC: H01R4/64
Filed: 1973-07-16
Abstract: 1440824 An electrical connecting-piece BAYERISCHE MOTOREN WERKE AG 16 July 1973 [15 July 1972] 33801/73 Heading H2E A coupling comprises a flexible electricallyinsulating member 4 with flanges 2 and 3 fastened independently to opposite sides bridged by a single component flexible electrical connector 12 attached by bolt 8 and nut 10 and bolt 9 and nut 11 (Fig. 2 not shown). Connector 12 is a wire with an arcuate, undular or helical flexible portion and eyelets, as 15, formed by bending the ends, as 13, into loops in the direction of tightening the nuts 10 and 11. The flexible portion may comprise at least one helical convolution of axial length equal to the axial thickness of the member 4 and of diameter equal to that of an opening 5 in member 4, in which it is coaxially situated. The member 12 may be of spring steel wire, ribbon, or strip. Member 4 may be the coupling plate in the divided steering shaft 1 of a motor vehicle, and may be of plastics or rubber, and have four bores 6 with bushes 7 for the bolts 8 and 9 and be secured by splines or key means to shaft 1. The eyelets, as 15, could alternatively be clamped between plate 4 and flanges 2 and 3.
Patent GB-1100575-A (GB)
Title: Improvements in or relating to process and apparatus for making titanium compounds
IPC: C22B34/12
Filed: 1966-07-28
Abstract: In a process for producing TiO2 by reaction of O2 with gaseous TiCl4 in an auxiliary CO-O2 frame, the product gases, after cooling and removal of TiO2, are analysed for Cl2 content, supplemented with additional Cl2 to give 50-70% b.v., and reacted with an oxidic Ti material and a reducing agent to give TiCl4, which is used for making more TiO2.  Oxidation may be effected at 900-1600 DEG  C. using a feed of 43-195 m.3/hr. of a mixture of TiCl4 and O2, and for the flame, 20-80 m.3/hr. O2 and 40-150 m.3/hr. of a mixture of CO with CO2 and N2 (e.g. 60-85%, 5-15% and 5-30% b.v. resp.).  Chlorination may be effected at 700-1200 DEG  C. in a fluidized bed using rutile or ilmenite and coke.
Patent GB-1428537-A (GB)
Title: Dehydrogenation method and multicomponent catalytic composite  for use therein
IPC: B01J23/62
Filed: 1973-07-18
Abstract: 1428537 Dehydrogenating hydrocarbons UOP Inc 18 July 1973 34154/73 Addition to 1323913 Heading C5E [Also in Division B1] Hydrocarbons are dehydrogenated in contact with a catalyst comprising a porous carrier, 0À01-2 wt. per cent of a platinum group metal, 0À01-5 wt. per cent of a germanium component containing the germanium in an oxidation state above the metal, 0À01-5 wt. per cent of a tin component and 0À01-5 wt. per cent of an alkali metal or alkaline earth metal component. Specified hydrocarbon feeds are C 2 -C 30  aliphatics, e.g. C 4 -C 30  n-paraffins, an alkyl aromatic having 2 to 6 carbon atoms in the alkyl group or a naphthene. The examples describe the conversion of n-dodecane to ndodecene, n-tetradecane to n-tetradecene, nbutane to n-butene and ethylbenzene to styrene. Specified reaction conditions are 371-677‹ C., 0À1 to 10 atmospheres, a LHSV of 1 to 40 and a hydrogen/hydrocarbon molar ratio of 1 : 1 to 20 : 1.
Patent GB-945635-A (GB)
Title: Colour pyrometer
IPC: G01J5/60
Filed: 1962-09-06
Abstract: 945,635. Photo-electric colour pyrometers. BODENSEEWERK PERKINELMER & CO. G.m.b.H. Sept. 6, 1962 [Sept. 14,1961], No. 34197/62. Heading G1A. The invention relates to a colour pyrometer in which a filter system 19 for receiving the radiation from a body of which the colour temperature is to be measured, allows the passage of radiation of two different wavelengths to alternately impinge on a silicon photo-electric cell 12 connected to a circuit for comparing the resulting signals from the cell corresponding to the intensities of the radiation at the two wavelengths to operate means which indicates the said colour temperature. In the embodiment shown the beam of radiation 10 is focused by a lens 11 through a rotating disc 19 comprising a semi-circular red filter and a similar green filter on to a silicon photo-cell 12 connected through a transformer 13 to an amplifier and phase sensitive rectifier 14 the output signal from which controls an electric motor 15. The output signals from the cell 12 which correspond to the intensities of the radiation at the two wavelengths are compared by the circuit 14 which causes the motor to turn and adjust the position of a colour wedge 17 in the beam 10 until balance is obtained. The position of the wedge 17 is indicated by the pointer 21 on a scale 22 as a direct colour temperature measurement. The silicon cell 12 is embedded in a copper block (Figs. 2 and 4 not shown) the temperature of which is kept constant at a higher temperature than the normal operating temperature of the pyrometer, by a surrounding filament wire controlled by a thermally-operated switch also embedded in the block.
Patent GB-864001-A (GB)
Title: Improvements in or relating to charging devices for blast furnaces
IPC: C21B7/18
Filed: 1958-10-27
Abstract: 864,001. Charging blast furnaces. COMPAGNIE D'ETUDES TECHNIQUES ET INSTALLATIONS GENERALES. Oct. 27, 1958 [Oct. 26, 1957], No. 34255/58. Class 51 (2) In blast furnace charging apparatus of the double bell type having a fixed large hopper 1 and a rotary small hopper 8. The bottom of the hopper 1 is closed by a large bell 3 operated by a rod 6, the top by a part-spherical bell 5 engaging a seating ring 4 and the rotary hopper 8 by a bell valve 11. The rotary hopper has a shoulder 14 engaging centring rollers 15 and a ring gear 10 engaged by a driving unit, Fig. 2 (not shown). In operation, hollow rods 7 and 12 are lowered simultaneously bringing shoulder 14 to rest on seating ring 4 and opening bell valves 5 and 11. Reverse movement closes bell 11, raises hopper 8 off the ring 4, and finally closes bell 5. With this arrangement, apart from a stuffing box between operating rods 6 and 7, there is no sliding joint in the charging apparatus.
Patent GB-839265-A (GB)
Title: Improvements in abrasive blasting appliances
IPC: B24C3/06
Filed: 1957-11-02
Abstract: 839,265. Abrasive blasting. ASHWORTH, N. I. Nov. 3, 1958 [Nov. 2, 1957], No. 34261 /57. Class 60. An abrasive blasting appliance comprises a casing, an impeller rotor mounted in the casing, an opening in the side of the casing through which the abrasive is projected by the vanes of the impeller and a suction conduit passing from the side of the casing on which the vanes of the impeller move away from the opening. A casing 3 having a handle 15 encloses a vaned impeller rotor 1 driven by a flexible shaft 13 from an electric motor. Abrasive is supplied to the impeller through a flexible pipe 10, either by gravity or from a pressurised container, the abrasive passes to a nozzle 11, and the impeller may contain a secondary feed impeller. Abrasive is discharged through opening 7 in the casing surrounded by a screen 8 of bristles or rubber flaps. Spent abrasive is removed by suction conduit 14. The electric motor, abrasive container and apparatus for retrieving spent abrasive may be mounted on a wheel truck or carrier.
Patent GB-1324791-A (GB)
Title: Substituted bicycloalkanes their preparation compositions containing same and their use
IPC: C07D209/08
Filed: 1970-07-15
Abstract: 1324791 Herbicides containing 2-azabicycloalkanes AGRIPAT SA 15 July 1970 [16 July 1969 11 June 1970] 34260/70 Heading ASE [Also in Division C2] Herbicidal compositions comprise as active ingredient a substituted 2-azabicycloalkane of the general formula:  wherein R represents an alkyl group having from 1 to 4 carbon atoms, R 1  and R 2  each represent hydrogen or one of the symbols is methyl and the other is hydrogen, and n represents the integer 1 or 2 together with carriers and/or distributing agents and optionally other herbicidal and biocidically active ingredients. There may also be included other herbicides, for example from the triazine series such as halogeno-diamino-s-triazines, and alkoxy- and alkylthio-diamino-s-triazines, triazoles, diazines such as uracils, aliphatic carboxylic and halogenocarboxylic acids, halogenated benzoic acids and phenylacetic acids, aryloxyalkane carboxylic acids, hydrazides, amides, nitriles, esters of such carboxylic acids, carbamic acid esters, ureas; insecticides, fungicides, bactericides, fungistatics, bacteriostatics or nematocides, plant fertilizers, trace elements, &c. Many active ingredients are specified.
Patent GB-773688-A (GB)
Title: Improvements relating to pipe or tube clips
Inventor: WILSON ERNEST WILLIAM
IPC: F16L3/10
Filed: 1954-11-26
Abstract: 773,688. Clip fastenings. TALBOT-STEAD TUBE CO., Ltd. Nov. 28, 1955 [Nov. 26, 1954], No. 34284/54. Class 44. A clip comprises a substantially U-shaped rigid locating member 1 provided with attachment means 4 for securing it to a wall or other structure and a bowed spring strip, pipe or tube retaining member 7 hinged to one limb of the locating member and releasably connected to the other to cover the gap between the limbs and bear upon a pipe or tube seated in the locating member. The limbs 2, 3 of the locating member are substantially parallel and are inclined so that the gap between them is directed towards the supporting surface. The attachment means is a tapped cylindrical boss which is welded or otherwise secured to the limb 2 but as an alternative a foot or saddle bracket having holes for wood screw fixing can be substituted. The retaining member 7 is bifurcated at one end to form legs which straddle the attachment means 4 and the legs are bent to engage a hinge pin 9 on the attachment means. The other end of the retaining member 7 is bent into a hook 10 and at the free end of the hook is a lifting flap 11. The hook engages an undercut lip or flange 12 formed on the limb 3 of the locating member.
Patent GB-1392930-A (GB)
Title: Ladling apparatus
IPC: B22D39/02
Filed: 1971-07-22
Abstract: 1392930 Casting machines JOSEPH LUCAS (INDUSTRIES) Ltd 30 June 1972 [22 July 1971] 34328/71 Heading B3F [Also in Division B8] A molten metal ladling apparatus 11 for a die casting machine includes a movable ladle assembly 25, 26, a guide 21 for guiding the assembly during movement between a filling position and an emptying station wherein metal is discharged from the assembly, and means 31, 32 for moving the assembly between the positions. The guide includes a pair of tracks 22a, 22b, and the assembly includes two track followers 27, 28 each engaging a respective track. The tracks are shaped to cause the assembly to tilt at the emptying station. As illustrated the ladling assembly includes a carrier 26 and a cast iron ladle 25 provided with tongues 35 adjacent its upper open end received in grooves in the carrier 26. The carrier is pivotally connected to a crosshead 29 on the end of a piston-rod 31 of hydraulic ram 32. The ladle is retained on the carrier by a removable bar 36, and includes an opening 38 intermediate its ends. Two guide tracks 23a, 23b are also engaged by further rollers 27, 28, attached to the carrier. The crosshead includes passages through which cooling water passes in use. The speed of movement of the ladle can be preset by means of one or more hydraulic flow restrictors. A die casting machine having a fixed die 14 and a movable die 15, and a plunger 16 hydraulically reciprocable in a sleeve 17 defining the shot well, includes the ladling apparatus 11 for supplying molten aluminium to aperture 18 when the plunger is retracted. In operation an ejected cast component falls from the open dies on to a tray and causes closure of a microswitch which effects spraying of the dies, die closure, and lifting of the ladle from the Fig. 3 position. The level of aluminium in reservoir 41 is maintained by means (not shown) between the limits indicated by dashed lines. As the ladle approaches the curved portions of the slots 22a &c., a cam (not shown) on the carrier operates a second microswitch connected in the control circuit such that if the dies are not fully closed and/or the plunger 16 is not fully retracted, the operation of the ram 32 will be halted. Normally the operation of the second microswitch will have no effect so that the ladle will move to its emptying position. When in the latter position, the ladle carrier operates a third microswitch to stop flow of hydraulic fluid to the ram 32 and to initiate a timer. After timing out the timer will cause fluid to be supplied to the ram 32 so as to extend the latter. When the filling position is reached a fourth microswitch will be closed to stop slow of fluid to the ram. The timer on timing out will also initiate operation of an injection timer which delays operation of the ram controlling the plunger 16 to allow metal to flow along launcher 42 and into the shot well. The dies open after a period sufficient for the charge to solidify whereupon a further cycle is initiated.
Patent GB-488114-A (GB)
Title: Improvements in windows
IPC: E06B3/44
Filed: 1938-01-06
Abstract: 488,114. Windows. COVELL, B. R. Jan. 6, 1938, No. 345/37. [Class 20 (iii)] A window comprises a fixed sash g<1> between an upper hinged sash g<11> and a lower sliding- sash g, the latter being fitted with lugs arranged to engage key-holed plates n, n<1> for securing the sash in the raised and closed positions respectively. The sash g is also fitted with apertured plates co-operating with spring-pressed balls or rollers on latches k for holding the sash in adjusted positions, and with ball-races j engaging runners i on the frame. As shown in Fig. 11, the hinged sash g<11> is connected by a pivoted link s to a slide p which is adjusted in the guide q by means of cords r, r<1>.