baber/WOPTO huggingface dataset:
Patent GB-1256583-A (GB)
IPC: F04B7/00
Filed: 1969-03-03
Abstract: 1,256,583. Delivering measured quantities of plastic substances. BENZ & HILGERS G.m.b.H. 3 March, 1969 [1 April, 1968], No. 11164/69. Heading B8N. Apparatus for delivering measured quantities of plastic foodstuffs, e.g. butter &c. comprises. a supply funnel 1 having apertures la engaging with apertures 3 in the wall of a rotatable cylinder 2, each aperture 3 leading to a chamber 5 defined by partitions 4, wall 4b and pistons 6 joined to a common piston-rod 7. When the chambers 5 are full the cylinder 2 is rotated by gears 8 so that the apertures 3 correspond with the upper mouths of shoots 9 to fill the containers 10 with the measured volumes. Pistons 6 are moved towards the right to empty the foodstuffs from the chambers 5. Air may be supplied to or removed from the space created between the partitions 4 and their adjacent pistons 6 through holes (12) Fig. 2 (not shown), in the hollow piston-rod or holes (13) Fig. 3 (not shown), in the cylinder walls. The funnel 1 may have a feed or stirrer worm.
Patent GB-1266489-A (GB)
IPC: C09B43/04
Filed: 1970-06-03
Abstract: 1,266,489. Nitrated azo dyestuff carboxylic acids. CIBA-GEIGY A.G. 3 June, 1970 [30 June, 1969], No. 26781/70. Heading C4P. Nitrated azo dyestuff carboxylic acids of formula where R is the residue of a diazo component are produced by treating an azo dyestuff of formula with a nitrating agent. The group R is, in particular a benzene residue which may contain substituents. The nitrated azo dyestuffs produced are used as intermediates in the production of pigments derived from 6-nitro-2,3- hydroxy naphthoic acid, e.g. by conversion to the acid chloride followed by condensation with a base, for example 4-benzoylamino-1-amino benzene. Nitration is carried out with nitric acid or a mixture of nitric and sulphuric acid. The nitrating mixture is added to a solution of the dyestuff, preferably a sulphuric acid solution and nitration is carried out below 20‹ C.
Patent GB-1289770-A (GB)
IPC: H03F3/68
Filed: 1970-08-10
Abstract: 1289770 Gain control TEXACO DEVELOP - MENT CORP 10 Aug 1970 [4 Sept 1969] 38440/70 Heading H4R [Also in Division G4] Parallel analogue input signals G1 . . . Gn (Fig. 1) are fed by amplifiers A the gain of each of which is preferably the same, a binary coded value of this gain being generated, to a multiplexer which sequentially feeds the signals to cascade connected amplifiers B (Fig. 2), the outputs from which are fed by sequentially enabled switches E to threshold detectors H, I which when triggered result in the amplifier output then connected to the detector being connected to an analogue/digital converter. The gain of the amplifiers A, B is recorded on magnetic tape together with the outputs of the A/D converter so that the recorded signals represent the inputs in floating point coded form. A programmer (J, Fig. 8, not shown) controls the operation of the switches R in the multiplexer and steps the field effect transistor switches E. When one of the threshold detectors H, I is triggered an exclusive OR gate gives an output to a switch counter, the binary count in which is then added to the binary coded signal representing the gain of the amplifier A to give the exponent of the floating point coded signal. The amplifiers B which comprise transistorized operational amplifiers connected in the phase inverting mode, the resistors in their feedback loop determining the gain, are linked by voltage sources C which prevent large signal overloads. The amplifier outputs are fed to the F.E.T. switches E via bandwidth determining devices D (Fig. 5, not shown) which also act as isolation stages. The devices D comprise operational amplifiers with a gain of - 1. A negative feedback loop including an active filter is connected from the last amplifier of the cascade connected amplifiers to the first which is modified to receive it.  The apparatus may be used for digitizing input signals from geophones.
Patent GB-1294837-A (GB)
IPC: B60H1/12
Filed: 1971-04-19
Abstract: 1294837 Heating and ventilating vehicles NISSAN MOTOR CO Ltd 19 April 1971 [24 April 1970] 9939/71 Heading F4V [Also in Division G3] In a vehicle heating system 10, 30, the proportions of air directed through and over a heat exchanger 46 are determined by the position of a flapper 31 subjected to the control of a temperature sensitive pressure regulator 10 acting through a pressure responsive actuator 35. The regulator 10 comprises a bi-metallic member 12, a supply line 23 which is connected to the intake (vacuum) manifold of an I.C. engine, an outlet line 28 which leads to one side 37 of the actuator 35, the other side 37<SP>1</SP> being open to atmosphere, a restricted bleed 26 and filter 27, and an atmospheric vent 15. Under cold state conditions, the bi-metallic member 12 is flexed away from outlet 24 and the bleed 26 is effectively closed by a poppet valve 33 which is connected to the bi-metallic member. Thus, vacuum is transmitted to the controlling side 37 of actuator 35 and so the flapper is moved to the position shown in full lines. A subsequent increase in ambient temperature results in bimetal 12 flexing toward outlet 24 and in poppet valve 33 opening. Accordingly, a small flow of atmospheric air passes bleed 26 and enters actuator side 37, the resulting decrease of vacuum causing the flapper to move in a clockwise direction. In addition to responding to temperature variations, the bimetal 12 is capable of moving solely in response to a pressure difference between the regulator chambers 13, 14, such facility ensuring that at a given ambient temperature the correct pressure is maintained within regulator chamber 14 irrespective of any variations in the pressure of the supply. In a modification, (Fig. 1, not shown), the regulator 10 is formed without the poppet valve 33, the filtered bleed 26 being in constant communication with the regulator chamber 14. Air is discharged through a louvre 48 into the passenger compartment.
Patent GB-1297853-A (GB)
IPC: G07D7/00
Filed: 1970-03-02
Abstract: 1297853 Photo-electric currency authentication SCHEIDT & BACHMANN GmbH 2 March 1970 [8 March 1969] 9813/70 Heading G1A In a method and apparatus for testing security papers having known areas of different light beam affecting properties, the difference in signals developed by photo-electric conversion means responsive to light reflected from or transmitted through two predetermined areas is compared with a standard value. The conversion means may comprise two photo-cells and the measurements may be made simultaneously.
Patent GB-1306641-A (GB)
Title: Photographic viewing and printing apparatus
IPC: G03B21/11
Filed: 1971-05-05
Abstract: 1306641 Photographic reader printers PENTACON DRESDEN KAMERA-UND KINOWERKE VEB 5 May 1971 13136/71 Heading G2A A photographic reader printer comprises an illumination system, formed by a lamp 3 and condenser 4, for a transparency 2; a projection lens 5; a mirror 6 rotatable about the optical axis I of the illumination system; fixed mirrors 7-9; an integral viewing screen 10 and an exposure station for printing an image on photosensitive material 11. The mirror 6 is rotatable by a motor driven shaft 13 obliquely connected to the mirror, between two positions obliquely inclined to the axis I. In its solid line position, light is reflected by the mirror 6 via the mirrors 7, 8 to the exposure station which is parallel to the transparency, and in its dotted line position light is reflected by the mirror 6 via the mirror 9 to the screen 10 which is approximately perpendicular to the exposure station. In another embodiment, Fig.6 (not shown), the drive shaft (35) is parallel to the mirror surface.
Patent GB-1316204-A (GB)
Title: Frequency spectrum signal generators
IPC: G10L13/06
Filed: 1971-03-02
Abstract: 1316204 Speech synthesizer INTERNATIONAL BUSINESS MACHINES CORP 2 March 1971 5739/71 Heading H4R Frequency spectrum generator, particularly for synthesizing speech, comprises a data store for storing digital samples of a periodic waveform taken at sampling intervals smaller than the waveform period, and a control device operable to read-out the samples at the original sampling intervals or multiples thereof. As described the data store 2, Fig. 3, stores in respective rows the digital values of samples of respective different frequency waveforms, each sample represented as the change in value with respect to the previous sample. The rows feed respective accumulators 8-15 to provide the output signal of the selected frequency according to the address stored in 5. The rate at which the signal samples are fed from store 2 is governed by the division table 1 under the control of address store 4. The division table 1 receives clock pulses from generator 19 and can then supply pulses at the original sampling rate of the samples in store 2, or at any one of a range of predetermined submultiples thereof, to address increment 7 to cause the reading out of samples from store 2 at the appropriate rate. In addition the amplitude of the signals fed out is controlled according to the information set into an address store 6 which, via an amplitude store 3 controls the accumulators 8 to 15 to provide the appropriate amplitude weighting. Phoneme counter 20 is provided to cause new information, in respect of the frequencies to be generated, to be fed into the address circuits 4, 5 and 6, after every 25 Msecs. Pitch counter 21 is used to provide smooth transitions between adjacent speech sounds by superimposing some components of one speech sound on the following speech sound by controlling the address circuits to read out both signals for a short time on transitions. A total of 5 frequencies may be generated simultaneously at any one time, three relating to a new speech sound and two relating to a previous speech sound to be superimposed on a new sound during the transition period between the two sounds. An alternative system, Fig. 4, uses a functional memory 32 which may be of the type of Specification 1,186,703 to perform the functions of division table (1 of Fig. 3), address incrementer (7), accumulators (8 to 15), combiner (16), amplitude store (3) and phoneme and pitch counters (20 and 21). The organization of the functional memory is described with respect to Fig. 5 (not shown).
Patent GB-1321820-A (GB)
Title: Tobacco smoke filter
IPC: A24D3/02
Filed: 1969-12-24
Abstract: 1321820 Tobacco-smoke filter CIGARETTE COMPONENTS Ltd 22 Dec 1970 [24 Dec 1969 21 March 1970] 62856/69 and 13767/70 Heading A2C  The filter comprises a tubular outer member 3 housing an air permeable rod 2 having a circumferential wall 6 of filtering material that encloses an air permeable supporting core 7, the outer surface of the wall 6 being in smokesealing engagement with the member 3 at a first longitudinal position 10 and opposed portions of its inner surface being deformed towards one another with compacted core material therebetween in smoke-sealing engagement at a second position 11 longitudinally spaced from the first, so that smoke drawn through the filter passes through the wall 6. The rod 2 is deformed to form grooves 15 in a substantially cylindrical intermediate portion 14 and to form ribs 12 at position 11 which may be cruciform (as shown) or may be in the form of a "Y". In an alternative embodiment, the filter rod has two cylindrical ends with a central section of "Y" cross-section, and the space between the central section and the outer member may be filled with granular material. In a further embodiment, the filter rod has a central cylindrical section and the two ends are of cruciform cross-section. The filtering material may be air permeable paper, bonded fibres or filaments, or porous plastics. The supporting part may be formed from a bonded cellulose acetate tow, a creped porous paper web, or fibres or filaments of thermoplastics such as polypropylene or polyethylene. A suitable apparatus (Fig. 5, not shown) is disclosed in which the filter is made by wrapping a filamentary tow (51) of cellulose acetate, that has first been sprayed with triacetin, with an elongate strip of paper (61) to which bands of adhesive have been applied and then heat deforming the resultant rod (65) to form a rod (67) comprising alternating portions of circular and cruciform cross-section. The rod (67) is then overwrapped either before or after cutting off through the centre of each portion to complete the filter.
Patent GB-1323101-A (GB)
Title: Line following system and drawings therefor
IPC: B23Q33/00
Filed: 1970-05-06
Abstract: 1323101 Template followers MARDON SON & HALL Ltd 1 Jan 1971 [6 May 1970] 21818/70 Heading G3N A set of drawings for controlling the movements of a line following system are prepared by dividing the time to be cut into sequences of sections, which are inter-connected by guidelines and setting-out each sequence on a separate drawing. The preparation of a set of drawings is discussed with respect to the making of a carbon cutting former. The guide-lines are thicker than cutting lines and the line-follower is of the type which permits actuation of a cutting device, such as a laser, when the line is of less than a set thickness. The use of the drawings in a step-and-repeat mode is also disclosed.
Patent GB-1327388-A (GB)
Title: Razor blades
IPC: B26B21/60
Filed: 1969-12-12
Abstract: 1327388 Laminated products WILKINSON SWORD Ltd 11 Dec 1970 [12 Dec 1969] 60634/69 Headings B4B and B5N [Also in Division B2] A razor blade has on and/or adjacent its edge a solid coating of a polyperfluorocarbon ether polymer of general formula where n is an integer #4, n 1 , n 2 , n 3  ... n# are the same or different and are 0 or integers between 2 and 200, x is an integer >10 and m and m<SP>1</SP> are positive integers usually less than 200, or of such polymers in which a small part of the fluorine atoms is replaced by other atoms or groups. The polymer is made by (a) reaction between homopolymers of C 2 F 4  and C 2 F 4 O; (b) a condensation with halogen elimination between monomers X(CF 2 ) y  O(CF 2 ) z X where X is Cl, Br or I and y and z are #2; (c) free-radical addition of C 2 F 4  to a monomer as in (b), or (d) reaction of C 2 F 4  and COF 2 . The coating may be applied as a thin foil by adhesion or hot rolling, as a powder by flame spraying, directed hot gas spraying or by electrostatic deposition of an aerosol, in a liquid carrier by spraying, dipping, painting or electrophoretic coating, or by transfer from a stropping disc. The blade, which may be of stainless or carbon steel, may be pretreated by etching, plating by evaporation or by electrolysis, heating, coating with a subbing layer, or by spraying with metal to form a porous coating.
Patent GB-1333270-A (GB)
Title: Photographic emulsions
IPC: G03C1/29
Filed: 1971-01-21
Abstract: 1333270 Supersensitized silver halide emulsions ILFORD Ltd 12 Jan 1972 [21 Jan 1971] 2872/71 Heading G2C A photographic silver halide emulsion comprises a supersensitizing combination of two dyes having the following general formula in which R 1  to R 8  represent H, halogen, alkyl or alkoxy, X and Y are S or Se, and Z is a straight or branched alkylene chain containing up to 6C, the two dyes, when, used alone, sensitizing a silver halide emulsion to produce a maximum sensitivity between 620 and 640 nm, and 650 and 670 nm. respectively. The dye combination sensitizes the silver halide emulsion to 650 nm and is useful for the red-sensitive layer of a multi-layer colour photographic material; as the dyes are not stripped by the presence of colour couplers, such as the combination of colour couplers disclosed in the example.
Patent GB-1334855-A (GB)
Title: Vehicle auxiliary lamp
IPC: B60Q1/05
Filed: 1971-04-19
Abstract: 1334855 Vehicle lamp JOSEPH LUCAS (INDUSTRIES) Ltd 19 April 1971 [19 March 1970] 13417/70 Heading F4R An auxiliary lamp for a vehicle has a casing 10 with a transparent panel 11 at the front and a moveable shield 12. The shield 12 may be held in the closed or open position by an overcentring spring and be manually operated by lip 12a or the shield may be operated by a cable from within the vehicle. In another embodiment, a spring biases the shield towards its open position but an electromagnetic catch holds the shield closed until the lamp is switched on.
Patent GB-1336558-A (GB)
Title: Liquid fuel injection pumping apparatus
IPC: F02M39/00
Filed: 1971-04-22
Abstract: 1336558 Fuel injection pumps CAV Ltd 22 April 1971 [2 May 1970] 21209/70 Heading F1A A fuel injection pump comprises two banks of cylinders arranged in "V"-formation, a pumping piston 32 reciprocable in each cylinder by a separate cam on a common shaft 22, and an axially adjustable control rod 37 longitudinally extending between the two banks of cylinders for effecting simultaneous adjustment of the delivery from the cylinders. Axial movement of the rod 37 is converted into rotation of delivery adjusting levers 36 on the pistons 32 by plates 39 adjustably fixed to the rod 37. Each piston 32 carries a tappet 26 prevented from rotating by the engagement of flattened transverse extensions (not shown) with fixed guides. A feed pump 40 situated between the cylinders is driven by a push rod 42 actuated by a cam on the shaft 22.
Patent GB-1341911-A (GB)
Title: Holder for electrodischarge electrodes
IPC: B23H7/26
Filed: 1971-01-25
Abstract: 1341911 Electro-discharge electrodes; electroerosion DEFENCE SECRETARY OF STATE FOR 11 Jan 1972 [25 Jan 1971] 3123/71 Headings B3A and B3V A method of producing an electrically conductive holder for holding a plurality of electrodischarge electrodes 14 comprises drilling holes in a pre-arranged pattern in the bottom of a vessel, inserting an electrode into each hole so that the electrode ends protrude either side of the vessel bottom and a pre-selected distance from the vessel bottom, enveloping at least a substantial length of the electrode ends which protrude into the vessel interior with at least one hardenable substance 20, hardening said substance, and withdrawing the hardened substance with electrodes embedded therein from the vessel. The vessel can comprise a cylinder 10, Fig. 1, with a removable end plate 12 which has holes to accommodate electrodes 14, a spacer 16 being used to select the required electrode end protrusion. A phenolic resin mixed with powdered graphite is then poured into the vessel and compacted with a ram 24. A shoulder 28 is used to locate the holder on an electro-discharge machine tool head (not shown). Alternatively, electrodes (14a), Figs. 3, 4 (not shown), are located in vessel bottom (12a) to which a stud (17) is attached for location in an electro-discharge machine tool head. An epoxy resin (20a) is poured into the vessel to leave protruding electrode ends which are subsequently covered by a thin layer of a low melting point alloy (21).
Patent GB-1342019-A (GB)
Title: Textile treatment process and apparatus
IPC: D06B19/00
Filed: 1971-05-13
Abstract: 1342019 Treating textiles SAMUEL PEGG & SON Ltd 9 May 1972 [13 May 1971] 14864/71 Heading D1L Apparatus for performing a method in which textile materials are placed in a first chamber for impregnation with a treatment liquid in a low liquor-ratio process whilst being mechanically worked and are then transferred to a second chamber in which the materials are tumbled whilst being heated to a temperature at which the treatment liquor is fully active comprises a first treatment chamber 1 comprising a drum 2 rotatable about its horizontal axis and having a hatch 6 through which the materials to be treated and the impregnation liquor are added and a removable end door 5 through which the treated materials are discharged, a jack 9 extending between carriage 8 and base frame 7 for the drum to tip the drum to discharge the impregnated materials, a discharge chute 16 pivotally connected to base frame 7 and a second treatment chamber 100 comprising a rotatable drum for receiving the discharged impregnated material and heating it to the required temperature. The second chamber 100 (Figs. 4 and 5, not shown) is preferably substantially identical to that illustrated in Fig. 1 of Specification 1332727. As illustrated the drum 2 may include perforated partitions 2a forming a plurality of individual compartments therein, liquor outlet 2b and drive means comprising belt 4b, gear 4a and motor 4 for rotating the drum on rollers 3 journalled into base frame 7. Carriage 8 may, be mounted on rails 11 to be movable adjacent or away from second chamber 100. Reservoir 13 having telescopic pipe 13a is provided at the top of inspection tower 12 for adding the liquid impregnation agent. Three or more first chambers 1 may be positioned along rails 11 to discharge materials into a single second chamber 100 as desired.  In an alternative embodiment (Fig. 2) the first chamber 1 is formed by a pressure vessel 201 with removable lid 203 and pivotable about spigots 209. The inside of vessel 201 is lined by air-impermeable bag 202 for containing the textile material and treatment liquid. Air under pressure is intermittently admitted into the space between the interior of vessel 201 and the bag 202 via conduit 205 and causes the bag to contract and expand alternately and thus work the impregnation liquid into the textile material. In a further modification (Fig. 3, not shown) a piston arrangement replaces the airimpermeable bag 202.
Patent GB-1342137-A (GB)
Title: Digital computers
IPC: H01H36/00
Filed: 1971-08-09
Abstract: 1342137 Portable calculator SUWA SEIKOSHA KK 9 Aug 1971 [12 Nov 1970 25 Nov 1970] 28774/72 Divided out of 1322434 Heading G4A A desk top computer has an input "keyboard" formed of individual magnetic reed contact units 3 located beneath the computer case and operated manually by means of a permanent magnet 39, large scale integrated circuit computing circuits, and an output display formed of liquid crystal display elements mounted parallel to or in the plane of the surface of the computer case or inclined rearwardly with respect to that plane and the operator. The reed units 3 are located as shown, asymmetrically with respect to their associated recess in the case 37 and are actuated by a single rod containing a magnet which is moved from recess to recess by the operator. The display units comprise two glass plates 44, 48, one of which is provided with a reflective layer, e.g. a metal coating, 42. A liquid crystal substance is contained between two electrodes 45, 49 which may be shaped as digits, &c., and are connected by leads 41 to the computing circuits. When a voltage is applied to the electrodes the orientation of the crystals is disturbed resulting in an optical dispersion effect. The display is shielded from ambient light by means of a hinged flap which may serve as a lid for the computer and may be covered with black leather or vinyl to increase its light absorbing properties.  As described the computer is operated from dry cell batteries via a voltage booster.
Patent GB-1342582-A (GB)
Title: Rail steel
IPC: E01B5/02
Filed: 1970-03-20
Abstract: 1342582 Rail steel BRITISH STEEL CORP and BRITISH RAILWAYS BOARD 19 April 1971 [20 March 1970] 13487/70 Heading C7A A steel rail section contains by weight:- at least one of the following hardening elements in the stated amounts: - provided that a total hardening element content of 5% is not exceeded; at least one of the following grain refining elements in the stated amounts:- together with nitrogen in an amount between 0À003 and 0À030% and in a substantially stoichiometric proportion to the amount of grain refining elements, the balance being iron and incidental impurities; the steel rail section having been subjected either to a normalising process wherein the steel is reheated to above its upper critical point of e.g. about 850 C and then air-cooled or to a controlled rolling process wherein the steel is rolled down to temperatures in the range 700 C to 900 C, to produce a ferrite grain structure finer than ASTM 8. The steel has an ultimate tensile strength greater than 69 kg/mm<SP>2</SP>.