baber/WOPTO huggingface dataset:
Patent GB-925548-A (GB)
Title: Improvements in or relating to information plotting aids
Inventor: HUNTER IAN
IPC: G01C21/00
Filed: 1960-10-27
Abstract: 925,548. Radar. MARCONI'S WIRELESS TELEGRAPH CO. Ltd. Aug. 1, 1961 [Oct. 27, 1960], No. 36925/60. Class 40 (7). A plotting aid for a radar installation carried by a ship or other vehicle and having a display tube 1 giving a display of the relative bearing type comprises a transparent plotting surface 7 adapted to fit over the screen 2 of the display tube in such a manner as to be spaced from the screen and to be rotatable about a fixed axis passing through the centre of the screen, a halfsilvered or dichroic or equivalent mirror 4 so arranged that a plot produced on surface 7 appears to an observer to be produced on the screen, and means for automatically rotating the plotting surface under compass control so as to render it compass-stabilized. Sub-frame 6 carries a gear-wheel 9 driven by a pinion 10 on the shaft of a gyro compass repeater motor 11, and the sub-frame carries also a compass scale ring 8. A cursor member 12, comprising a disc of transparent material having an opaque radial line, is also carried by sub-frame 6 and is manually rotatable by means of handle 14. In a modified cursor arrangement, an optical projection system is used, Fig. 2 (not shown).
Patent GB-1359742-A (GB)
Title: Amine intermediates for azo dyes
IPC: C09B44/10
Filed: 1971-11-10
Abstract: 1359742 Aniline derivatives CIBA-GEIGY AG 10 Nov 1971 [11 Nov 1970] 36951/72 Divided out of 1359741 Heading C2C The invention comprises compounds of the formula wherein A is an optionally substituted 1,4- phenylene radical, X is -NH-, -N(CH 3 )- or -O-, Y is a halogen atom, an acyloxy or aryloxy radical, "ph" is a phenyl radical, R 1  is an optionally substituted alkyl radical or a radical of the formula wherein R 2  is an alkylene radical and R 3  is H or a phenyl radical. They may be obtained by acylating an amine of the formula with a carboxylic acid of the formula or a reactive derivative thereof. Examples are given for the production of the compounds. They are useful as coupling components for azo dyes.
Patent GB-1208514-A (GB)
Title: Improvements in or relating to external rear view mirrors for vehicles
Inventor: TALBOT YORCK JOACHIM
IPC: B60R1/06
Filed: 1968-08-02
Abstract: 1,208,514. Rear view mirrors. Y. J. TALBOT. 2 Aug., 1968, No. 37038/68. Heading B7J. An external rear view mirror comprises a reflector 5 (Fig. 1) mounted on a holder 4 adjustable in a casing 3; a base 2, 22, secured to the casing 3 and a vehicle 1, and an attachment 10 extending away from the reflector and terminating substantially at the level of the base, the attachment bridging the gap between the casing 3 and the vehicle 1, and having a smooth face at its side remote from the base. The attachment 10 has at one end a spherical head 27 engaging in the adjacent open end of the casing in the manner of a universal joint. The member 10 may serve as a handle for operating means for adjusting the holder in the casing, which means comprise a disc 7, a screw 8, and a threaded sleeve 9 connected resiliently to the spherical head 27. The attachment may be either rigid or resilient, and terminates at the other end in a resilient cap 13. In other embodiments the attachment may be made of sheet steel and securable to the vehicle body by means of a screw (Fig. 2, not shown); the attachment may terminate in a magnet (29) (Fig. 3, not shown), instead of the cap 13; or the attachment may terminate in an extendable leg (14), (Fig. 4, not shown) so as to enable the length of the attachment to be altered. In the embodiment of Fig. 4 (not shown), part of the attachment is formed into a transparent cap (18) containing an electric bulb (20).
Patent GB-966590-A (GB)
Title: Process for the continuous treatment of a first liquid with a second liquid, which isimmiscible therewith
Inventor: MES PETER AUGUST
IPC: C10G17/06
Filed: 1961-10-20
Abstract: A first liquid is continuously treated by a second immiscible liquid by passing them in parallel flow through a contact bed comprising solid, inert, fibrous material which is preferentially wetted by the first liquid, the ratio by volume of the second liquid to the first supplied to the contact bed being less than 1 and the direction of flow being governed by the relative specific gravities of the two liquids so that the two liquids flow downwardly when the specific gravity of the second liquid is higher and vice versa and removing both liquids from the contact bed as continuous phases.  The process is similar to Specification 863,534.
Patent GB-1550078-A (GB)
Title: Apparatus for positioning and feeding sheets on sheet processing machines
IPC: B65H9/10
Filed: 1977-09-09
Abstract: The sheets are fed in an overlapping manner to the guide marks and passed by them outside the range of action of the side guide (7) and then gripped by conveying elements (8), mounted below the feed table, and moved into the range of action of the side guide (7) working invisibly. The sheets (2) are aligned there by their side edge while the sheet (1) being drawn off still partially covers the sheet to be aligned. <IMAGE>
Patent GB-1045252-A (GB)
Title: Improvements in or relating to apparatus for separating water from spent pickling liquors
IPC: B01D1/14
Filed: 1962-10-06
Abstract: 1,045,252. Spray evaporators; concentrating pickling liquors. EDWARD CURRAN ENGINEERING Ltd. Oct. 2, 1963 [Oct. 2,1962], No. 37908/62. Heading B1B. Spent aqueous acid liquor which has been used for pickling metals is concentrated by evaporation of water, the liquor being sprayed into a tower 1 through nozzles 10, spaced around the inner periphery of the tower, so that droplets of the liquor move transversely through hot gas flowing in swirling motion down the tower. The hot gas (e.g. combustion gases from an annealing furnace) is introduced into the tower from chamber 2, and a fan (not shown) withdraws the gas, saturated with water-vapour, from the tower through pipe 4. The concentrated liquor is discharged through duct 5. The liquor is supplied to the nozzles 10, through four standpipes 6, each standpipe being supplied by a pipe 7 in which a valve 8 is disposed, so that the flow of liquor to the standpipe can be controlled independently of the flow to the other standpipes. A pipe 11, centrally disposed in the tower, is provided with openings from which washing liquid may be directed against the inner walls of the tower when it has to be washed.
Patent GB-1272147-A (GB)
Title: Recovery of phosphorus value from phosphorus sludge
IPC: C01B25/02
Filed: 1969-07-29
Abstract: 1,272,147. Recovering phosphorus values. STAUFFER CHEMICAL CO. 29 July, 1969 [5 Aug., 1968], No. 37961/69. Heading C1A. Phosphorus values are recovered from phosphorus sludge by mixing 2-8 parts by weight of carbon disulphide with every part by weight of sludge, agitating the mixture to a modified Reynolds number of from 10<SP>5</SP> to 10<SP>6</SP> for a period of from 0À2 to 16À0 minutes, removing particulate material by filtration and thereafter recovering the phosphorus values from the carbon disulphide fraction (e.g. by thermal distillation). The modified Reynolds number is calculated from the formula D<SP>2</SP>Np/Á wherein D is the agitator diameter (ft.), N is the agitator speed in revs. per second, p is liquid density of CS 2  (in lbs/cu. ft.) and Á is liquid viscosity of CS 2  (in lbs./ft. see.). (For CS 2 , p=78À2 and Á=0À333x x 10<SP>-3</SP>.)
Patent GB-379815-A (GB)
Abstract: 379,815. Anti-aircraft gun sights. AKTIESELSKABET DANSK REKYL-RIFFEL SYNDIKAT, Aarhusgade, Frihavnen, Copenhagen. July 20,1931, No. 20656. Convention date, Aug. 18, 1930. [Class 92 (ii).] Means for adjusting the sight line in relation to the gun's axis to take account of the angle of sight and height of the target and the direction and speed of its movement, comprise a frame 18, 19 carrying a rear sight 22 and a foresight 24, the member 18 of the frame being in the form of a spindle one end 12 of which is set by adjusting means 7, 6, 10, 11, 15, 16 to suit the speed of the target and its direction of motion as viewed between wires 25 on the foresight. Further, the member 18 is also connected to a frame 31 .. 34 on the gun by a sliding system 36, 37, 38 which by means of a link 39 is connected to a lever 40 adjustable over a fixed graduated arc 43 to suit the height of target. After the preliminary adjustments as above for direction, speed, and height of target, the gun is automatically brought to correct firing direction by operating its elevating and training gear until the target is sighted at the centre of the wires 25. Fig. 6 shows the end of the spindle 18 universally jointed to a member 12 adjustable to a speed scale 14 on a frame 8 which can be rotated in a bearing 5 on a fixed frame 4 and if necessary tilted on a bracket 9 until the target is seen moving between the wires 25 on the foresight. The turning movements of the frame 8 are conveyed through the spindle 18 to the wires 25 by gearing as shown in Fig. 4.
Patent GB-1027220-A (GB)
Title: Improvements relating to stripping films
IPC: G03C1/815
Filed: 1964-09-17
Abstract: Aqueous resin dispersions used for photographic stripping films comprise a copolymer consisting of 76-96.5% by weight of n-butyl methacrylate, 20-3% of an alkyl acrylate or alkyl methacrylate wherein the alkyl group has 6 to 12 carbon atoms and 4-0.5% of itaconic acid, or a mixture of 40-80% by weight of the aforementioned resin with 60-20% by weight of a vinylidene chloride copolymer containing at least 35% by weight of vinylidene chloride such as a 35-96% vinylidene chloride/3.5-40% unsaturated ester or unsaturated nitrile/0.5-25% itaconic acid copolymer wherein the second component is methyl, ethyl, n-propyl or n-butyl acrylate or methacrylate, vinyl chloride, acrylonitrile or methacrylonitrile.  A preferred n-butyl methacrylate copolymer is made by heating an aqueous emulsion of n-butyl methacrylate, n-hexyl methacrylate and itaconic acid in the presence of sodium dodecyl sulphate, ammonium persulphate and sodium metabisulphite to give a n-butyl methacrylate/n-hexyl methacrylate/itaconic acid copolymer of a ratio 95/3/2.  In examples, the latter copolymer is mixed with the vinylidene chloride/methyl acrylate/itaconic acid copolymer (85/15/2) made as described in Example 1 of Specification 688,528 in ratios of 80: 20, 70: 30 and 60: 40. The n-butyl methacrylate copolymer may also be mixed in 60: 40 ratio with a vinylidene chloride/methyl acrylate/itaconic acid copolymer (90/10/2).  Other n-butyl methacrylate copolymers are those made by replacing n-hexyl methacrylate in the above preparation by n-doedcyl methacrylates or n-octyl acrylate and these may also be mixed with the vinylidene chloride/methyl acrylate/itaconic acid copolymer (85/15/2) in 80: 20 ratio.
Patent GB-1111360-A (GB)
Title: Improvements in and relating to circuit arrangements in or for high-frequency heating apparatus
IPC: H05B6/04
Filed: 1966-08-25
Abstract: 1,111,360. Valve oscillator circuits. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. 25 Aug., 1966 [28 Aug., 1965], No. 38115/66. Heading H3F. [Also in Division G3] The output of an oscillator for a highfrequency heating apparatus is controlled by a transistor in the cathode circuit of the oscillator valve. As described, the control circuit comprises a number of transistors 19, 20, 21 connected in series. resistive elements 41, 42 being connected across them and to their base circuits to ensure equal voltage distribution across them. The current fed through the transistors to the oscillator is adjusted by a rectified square wave signal of variable amplitude from transformer 27. The square-wave signal may be derived from an oscillator, Fig. 1 (not shown), or, as shown in Fig. 2, from a retro-active loop connected to the output circuit 18 so as to maintain the output current or voltage constant with varying load. Alternatively, a signal dependent on the temperature of the workpiece 15 may be derived and used to maintain the temperature constant.
Patent GB-1020345-A (GB)
Title: Automatic exposure control for photographic copiers
IPC: G03B27/80
Filed: 1963-09-27
Abstract: 1,020,345. Photo-copying apparatus. SPERRY RAND CORPORATION. Sept. 27, 1963 [Oct. 9, 1962], No. 38169/63. Heading G2A. In continuous flow copying apparatus, a photoelectric cell receives light reflected from the original at a point just before it passes into the photographing station, the cell being part of a circuit controlling the energization of the light source so as to vary its intensity inversely in proportion to the intensity of the said reflected light. In the arrangement shown, the documents to be copied are in the form of a continuous strip 14, fed at speed over a roller 16 of dark-surfaced rubber by endless belts 18, 18<SP>1</SP>. The photographing station is defined by a glass 15 under which the strip passes. In this position, light falls on the document from a source LPB, and is reflected therefrom to pass through an aperture 20 in a light shield 12. (The shield 12 divides the housing 10 into two sections.) A mirror 22 reflects the light on to the sensitive film 26, which is moving from supply reel 28 to take-up reel 30. Light from the source LPB is also reflected from the document strip at a predetermined location just before it reaches the photographing station 15, and the light reflected from this position is collected by a photoconduct cell PC. The varying resistance of this cell, as the light incident on it varies, it utilised, by means of the circuit of Fig. 2 (not shown), to control the power energizing the light source LPB, in an inverse manner. Thus if the amount of reflected light received by the photocell increases, the intensity of the light source is reduced, and vice versa. Consequently, the brightness of the document to be copied is sensed just before it reaches the photographing station, and any change therein causes a compensating change in the light source intensity by the time the document reaches the photographing station. An additional (constant) light source LP, whose reflection from the "measuring" location is picked up by the photo-cell, may be provided to afford a greater degree of linearity to the control. A reflecting disc 44, spring-loaded so as to bear against one down-bent end 40b of a trigger bar bar 40, is normally positioned as shown in full lines, so that it does not obstruct the passage of light from sources LPB and LP. The other downbent end 40a rides on the document strip. When there is no strip present, the end 40a of the spring- loaded trigger bar enters into a groove 48 in roller 16, so that its other end moves sufficiently to allow disc 44 to rotate into a position where it interrupts the light and reflects it back to the photo-cell. This prevents the overloading of the light source due to minimal reflection from the dark surface of the roller itself.
Patent GB-1364970-A (GB)
Title: Rotary filter apparatus and valve therefor
IPC: B01D33/00
Filed: 1972-08-16
Abstract: 1364970 Rotary filter valve arrangement ENVIROTEOH CORP 16 Aug 1972 [16 Aug 1971] 38209/72 Heading B1D In a filter wherein an inward-flow filter drum or disc rotates about a horizontal axis in a tank 15, different sectors of the drum/disc are connected to respective ports in a rotary wear plate 22 located at the end of a hub 26 extending from the drum/idisc through the tank end wall 15a, plate 22 cooperating with a fixed wear plate (30, 31) at the right-hand end of non-rotary annular valve housing 43, 44, the housing encircling trunnion 13, which supports the drum/disc on bearing 28, but being supported independently and movable axially to adjust wear plate clearance. As shown the valve housing is mounted on wheels 62 and urged towards tank wall 15a by spring-stud assemblies 84..88 spaced around the housing. Bellows 36 connects the housing to the tank wall, and ring seals 83 prevent leakage from the tank to the valve. The fixed wear plate (Fig. 4, not shown) presents large and small sectoral apertures respectively communicating immersed sectors of the drum/disc with a barometric leg suction source and exposed sectors with a vent to atmosphere. Fig. 4 illustrates how the valve is readily demountable. The independent support of the drum/disc and valve housing reduces strain on the valve parts.
Patent GB-1535201-A (GB)
Title: Tuned transistor amplifiers
IPC: H03F3/191
Filed: 1976-08-04
Abstract: 1535201 Transistor amplifiers GENERAL ELECTRIC CO Ltd 4 Aug 1976 [17 Sept 1975] 38215/75 Heading H3T The invention is concerned with the prevention of unwanted parametric oscillations due to negative resistance in a tuned transistor amplifier, e.g. for 3 GHz, produced by the pumping action of the signal on a voltage dependent base-emitter capacitance, e.g. of transistor 1. In one embodiment resistors such as 10, 11 are included in any circuit path which includes the said capacitance and which resonates at a possible frequency for parametric oscillation. Such resistors are preferably decoupled at the in-band frequencies of the amplifier, e.g. by band-stop filters 6, 7, to minimize loss of power at signal frequencies. Possible frequencies for parametric oscillation are f 1 , f 2 , related by nf 1  + mf 2  = f p , where n, m are positive integers and f p  is the pumping frequency, in particular a frequency of f p /2. Parametric oscillations may alternatively be prevented by eliminating resonances at such frequencies from paths in the amplifier which include negative resistance.
Patent GB-860887-A (GB)
Title: Improvements in or relating to waste paper receptacles
IPC: A47G29/06
Filed: 1956-12-15
Abstract: 860,887. Cabinets. YATES, F. June 21, 1957 [Dec. 15, 1956], No. 38323/56. Class 52(3). [Also in Groups I and XVII] A waste paper receptacle 3 has a cover 1 with a flat top 2 at desk height, one side being open to give access to the receptacle. The cover may have an internal shelf and may rest upon the receptacle or be integral with it, and may be foldable or of sectional construction.
Patent GB-1073672-A (GB)
Title: Improvements in or relating to fluid flow control valves
IPC: F16K15/00
Filed: 1964-07-02
Abstract: 1,073,672. Regulating fluid flow. H. TEVES, E.A. TEVES and M. TAUSEND [trading as ALFRED TEVES MASCHINEN-UND ARMATURENFABRIK KOMM GES]. July 2, 1964 [July 27, 1963], No.38379/66. Divided out of 1,073,671. Heading G3H. A combustion chamber 1 receives air or an oxidizing agent from an inlet 19 and channels 18 which provide a whirling motion while gas from a supply 5 is fed through laval nozzles 22 to whirl chamber 23 and conveys the air or oxidizing agent from channels 18 to the combustion chamber. The gas flow from the nozzles offers a resistance to flow from the combustion chamber.
Patent GB-818230-A (GB)
Title: Benzoylcarbinol esters
IPC: C07C69/22
Filed: 1957-12-10
Abstract: The invention comprises benzoylcarbinol esters of the formula (I) <FORM:0818230/IV (b)/1> (where R1, R11 and R111 are alkyl groups, or R1 is an alkyl group and R11 and R111, together with the carbon atom to which they are attached, form a saturated carbocyclic ring system), and their preparation by (I) reacting an a -halogenoketone of the formula (II) <FORM:0818230/IV (b)/2> (in which X is a halogen atom) with a metal salt of the formula <FORM:0818230/IV (b)/3> (wherein Me is a metal atom), (2) reacting the acid chloride or anhydride of an acid of the formula (III) <FORM:0818230/IV (b)/4> with benzoylcarbinol, (3) reacting benzoylcarbinol with an acid of the formula (III) in the presence of an acid catalyst, (4) heating benzoylcarbinol with an acid of the formula (III) under conditions such that the water formed is azeotropically removed, or (5) reacting phenyldiazoketone with an acid of the formula (III).  Preferred compounds are those in which R1, R11 and R111 are alkyl groups containing 1-6 carbon atoms (particularly 1-4 carbon atoms), or in which R1 is an alkyl group containing 1-4 carbon atoms and R11 and R111 form, with the carbon atom to which they are attached, a cyclohexyl group.  Examples describe the preparation of benzoylcarbinol trimethylacetate by (1) reacting chloroacetophenone with the sodium salt of trimethylacetic acid in aqueous ethanol, (2) treating benzoylcarbinol in chloroform with trimethylacetyl chloride in the presence of pyridine (3) reacting phenyldiazoketone with trimethylacetic acid at 150 DEG  C., (4) esterifying benzoylcarbinol with trimethylacetic acid in the presence of sulphuric acid, and (5) eliminating water between benzoylcarbinol and trimethylacetic acid by azeotropic distillation with benzene.  The sodium salt of trimethylacetic acid in (1) may be replaced by a salt of 1-methylcyclohexane-1-carboxylic acid or tripropylacetic acid.
Patent GB-807745-A (GB)
Title: Improvements in and relating to display stands for exposing goods
IPC: A47F5/00
Filed: 1956-12-17
Abstract: 807,745. Display stands. LILLA EDETS PAPPERSBRUKS A. B. Dec. 17, 1956 [Nov. 22, 1956], No. 38408/56. Classes 52(2) and 52 (3) C-shaped end standards, preferably of metal tubing, are connected at two spaced levels by horizontal rods 5, 6, 7, 8 upon which shelves or trays 10, 9 are detachably secured by means such as clips 11, 15, 16 mounted on the underside of the trays The latter are preferably made of sheet metal with wire mesh bottoms.
Patent GB-979597-A (GB)
Title: Improvements in or relating to securing arrangements for clamping spring assemblies holding weft carriers in shuttles
IPC: D03J5/00
Filed: 1962-10-11
Abstract: 979, 597. Shuttles. EMIL FORSTER A.G. Oct. 11, 1962 [Nov. 4, 1961], No. 38474/62. Heading D1E. A cop carrier comprises a spring 6 and an insert 12 which fit into an intermediate piece 18, a bridge piece 13 and a screw 11 which passes through the shuttle 1, intermediate piece 18, spring 6 and insert 12.
Patent GB-365288-A (GB)
Title: Apparatus for making paper cartons or bags
IPC: B31B50/00
Filed: 1930-12-29
Abstract: 365,288. Making paper cartons and bags. UNIVERSELLE CIGARETTENMASCHINEN-FABRIK J. C. MœLLER & CO., 48, Zwickauerstrasse, Dresden, Germany. Dec. 29, 1930, No. 39056. Convention date, Sept. 15, 1930. [Classes 18 and 94 (ii).] In making cartons and bags by pressing a paper blank into a shaping channel by a plunger and thus folding it into U-shape, the ends of the blank, at the moment when it is engaged by the plunger, are raised by folding fingers which guide them obliquely into the shaping channel and so prevent the plunger damaging the blank at the edges of the channel. As shown the ends of the blank are raised by fingers 13 eccentrically mounted on rotating discs 12 which reciprocate the fingers through the blank-supporting table 14 ; the cam 32 actuating the plunger 11 may be shaped so that the plunger remains stationary when it engages the blank for a short time until the fingers have folded the ends of the blank. The fingers may take the form of cams rotatably mounted at each side of the shaping channel or they may be carried by belts moving transversely across the table 14.
Patent GB-1429809-A (GB)
Title: Acid imide copolymers
IPC: C08F8/32
Filed: 1973-08-17
Abstract: 1429809 Polymeric imides ARCO POLYMERS Inc 17 Aug 1973 [29 Aug 1972] 39094/73 Heading C3P Polymeric imides in bead form are produced by heating (1) a suspension of a copolymer of a dicarboxylic monomer and a non-carboxylic monomer, with (2) aqueous ammonia or an aqueous amine, in a closed system at autogenous pressure. The suspension may contain polyvinyl alcohol. The dicarboxylic monomer may be a dicarboxylic acid or anhydride or a halfacid derivative thereof. Numerous non- carboxylic co-monomers are mentioned. In cases where imide formation is incomplete, the products may be heated to effect further cyclization. In cases where the amine used is a diamine, some cross-linking takes place. In examples, the copolymers used are styrene/ maleic anhydride, styrene/maleic acid monomethyl or monobutyl ester and styrene/maleic acid/maleic anhydride, and the second reactant is ammonia, methylamine, n-butylamine, ethanolamine, allylamine, aniline, ethylene diamine, benzidine or hexamethylene diamine.