baber/WOPTO huggingface dataset:
Patent GB-1266535-A (GB)
IPC: F16L37/14
Filed: 1969-03-14
Abstract: 1,266,535. Pipe couplings. LUNKEN CO. Ltd. 12 June, 1970 [14 March, 1969], No. 13462/69. Heading F2G. A swivel pipe coupling comprises a first body portion 25, Fig. 1, having an internal or, as shown, external thread 27 for connection to one pipe, a bore 28 including a shoulder 32, a cylindrical surface 29, an annular recess 30 and a tangential aperture 31, Fig. 4, leading to the annular recess; and a second body portion 33, Fig. 1, for connection to a second pipe and formed with an external annular recess 41, a shoulder 39 and a cylindrical surface 38 to locate a sealing ring 40, the arrangement being such that when the two body portions 25, 33 are assembled the annular recesses 30, 41 are aligned in the same plane permitting the insertion of a locking wire 42, Fig. 4, of brass, and the sealing ring 40 is compressed between the shoulders 32, 39 and the cylindrical surfaces 29, 38. As shown, the body portion 25 has the thread 27 at one end and a hexagonal formation 26 at the other: in a modification, an internal thread (45), Fig. 2 (not shown), is surrounded at the same end by a hexagonal formation 26. In a modified construction of the body portion 33, a ferrule (51), Fig. 5 (not shown), is swaged to grip the end of a pipe (52) and secure it to the body portion (50). The coupling may be used with resilient or with solid metal pipes.
Patent GB-1287962-A (GB)
IPC: G01G1/28
Filed: 1970-04-06
Abstract: 1287962 Weighing-apparatus L OERTLING Ltd 19 April 1971 [6 April 1970] 16177/70 Heading G1W In a balance with a beam carrying a load pan 15 at one end and a counterweight at the other and with weighing being effected by removing weights from the pan end of the beam in order to achieve a balance when an article is placed on the pan, the removable weights comprise a set of weights and an additional capacity-increasing weight 21 arranged, when in position on the balance, to conceal a warning mark or other indication 23 on a part of the balance structure, which mark or indicator 23 is exposed when the weight 21 is removed, thus providing a warning that a fixed amount must then be added to the reading of weight. The pan 15 is carried by a disc-shaped support 17 and the cup-shaped weight 21 can be mounted inverted on the support 17 so that its rim 22 covers the peripheral edge of the support 17 and conceals the warning marks 23. The weight 21 has an aperture 20 so that the pan 15 can be located by a spigot 19 in a co-axial socket 18 of the support 17 whether or not the weight 21 is in position. The balance may be of top pan type, Fig.1 (not shown) or of suspended pan type, Fig. 3 (not shown).
Patent GB-1290015-A (GB)
IPC: F42B7/08
Filed: 1969-05-13
Abstract: 1290015 Injection-moulded cartridge IMPERIAL METAL INDUSTRIES (KYNOCH) Ltd 9 April 1970 [13 May 1969] 24269/69 Heading B5A [Also in Division F3] A method of manufacturing a shot concentrator for a shotgun cartridge comprises injection moulding a cylindrical side wall 11 of substantially unfoamed plastics material and a base wall 12 at least partly of unfoamed plastics material, injecting foamable plastics material into the mould and allowing the foamable plastics to foam and form a compressible wad 13, and allowing the unfoamed and foamed plastics material to set. The mould 18 is cooled by water flowing in channels 23 and suppresses foaming if foamable plastics material is used to foam the cylindrical side wall 11. The central core for forming the shot cavity in the concentrator comprises an optional sleeve 33 and a pin 34. During the injection moulding of the cylindrical wall 11 and the base wall 12 the pin is in the position A. The pin is moved to the position B to permit further injection of plastics material and is finally moved to position C to permit the wad 13 to be formed by foaming of the plastics material. The wad 13 can be formed of the same or from a different plastics material to the cylindrical and base walls 11 and 12. The plastics material comprises polyethylene with a blowing agent such as azodicarbon-amide, ethylene/vinyl acetate co-polymer or plasticized polyvinylchloride. The mould 18 is fitted within a block 21 mounted in an annular bolster 22 axially located between a bearing plate 24 and sprue plate 26. A sprue bush 27 is mounted on a reciprocating screw type injection machine, the sprue channel 29 opening into a cavity 30 which receives the injection nozzle which is fitted with a spring- loaded valve to maintain pressure on the material at about 2000 p.s.i.
Patent GB-1290257-A (GB)
IPC: C01B32/336
Filed: 1970-04-20
Abstract: 1290257 Active carbon STANDARD OIL CORP 20 April 1970 [4 June 1969] 18656/70 Heading C1A [Also in Divisions C2 and C5] A particulate carbon material is prepared by (a) contacting a fusible bituminous coal, i.e. a coal which fuses into a solid mass when heated to or past the fusion point and which contains 60-80% fixed carbon and 40 to 20% volatile matter and provides a heating value from 10,000 to 15,000 B.T.U. per lb., with a liquid sulphonating agent in an amount not exceeding the weight of coal to be treated for a period of less than 2 hours at ambient temperatures and further heat soaking the treated material at an elevated temperature lower than the decomposition temperature of the sulphonating agent for a period from 10 mins. to 3 hours to produce an acidified product; (b) heating the so treated product at a temperature in the range 204À4 to 371À1 C. in the presence of 0À1 to 10 SCFH of air per pound of product to recover the excess acid values, (c) increasing the temperature at a rate in excess of 10 C. per minute until past the fusion zone of from 400 to 600 C. to a carbonization temperature in the range of from 600 to 900 C. and recovering a carbonized product. The bituminous coal is preferably in particulate form and has a mesh size of less than 10 Tyler mesh. The amount of sulphonating agent may be within the range of less than the weight of the coal but greater than 15% by weight of the coal. The heat soaking step may be effected at 100 C. The liquid sulphonating agent may be concentrated sulphuric acid. The carbon product obtained may be activated by treating with steam or other oxidizing gas.
Patent GB-1290471-A (GB)
IPC: C01B25/28
Filed: 1970-01-08
Abstract: 1290471 Reflux crystallisation VERENIGDE KUNSTMESTFABRIEKEN MEKOG ALBATROS NV 8 Jan 1970 [10 Jan 1969] 1009/70 Heading B1G [Also in Division Cl] The mixing of ion-containing liquids to produce a crystalline precipitate is effected in a Rotating Disc Contactor (RDC) in which an ascending current is maintained. An RDC is a vertical cylindrical column divided into spaces internally by baffle rings having a central opening, and in which a stirring device is present in the form of a rotatable shaft extending through the openings, and carrying horizontally mounted discs. The largest crystals descend and are recovered, optionally after washing in a second RDC of smaller diameter than, and mounted below the first, and in which a slower ascending current is maintained. A space above the first RDC may be provided in which the ascending current is made slower than in the RDC, e.g. by removing liquid from the bottom of the space. Discharged mother liquor which may still contain fine crystals may be recycled and used for dissolving initial materials. The following crystallizations are exemplified:- (1) mixing of crude phosphate containing 50% CaO + 35% P 2 O 5 , dissolved in HNO 3 , with H 2 SO 4  giving double decomposition into calcium sulphate hemihydrate; (2) the reaction H 2 SiF 6  + 2NaCl (or 2KCl) -> Na 2 SiF 6  (or K 2 SiF 6 ) + 2HCl; (3) the successive reactions (a) 2MgSO 4  + 2KCl + 6H 2 O -> MgCl 2  + K 2 SO 4 .MgSO 4 .6H 2 O, (b) K 2 SO 4 . MgSO 4 .6H 2 O + 2KCl -> MgCl 2  + 2K 2 SO 4  + 6H 2 O. In (3) above, each reaction is conducted in an RDC, precipitation being effected in reaction (b) by addition of, e.g. methanol, ethanol, dioxane or acetone.
Patent GB-1295310-A (GB)
IPC: A01K61/85
Filed: 1970-06-10
Abstract: 1295310 Aquarium food holder U BAENSCH 10 June 1970 [24 June 1969] 28026/70 Heading A1A An aquarium food holder, preferably of plastics material, has two recesses 2 whose walls 3 are resiliently adapted to hold food tablets 1 and which is formed with a loop 8 through which a thread 9 passes such that the holder may be suspended inside the aquarium.
Patent GB-1296663-A (GB)
IPC: G03B15/04
Filed: 1970-02-18
Abstract: 1296663 Priming compositions PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 18 Feb 1970 [21 Feb 1969 13 Dec 1969] 7808/70 Heading C1D [Also in Division G2] An ignition mass for a photographic flash bulb comprises Zr powder, KClO 4 , LaCoCO 3  and nitrocellulose.
Patent GB-1305033-A (GB)
IPC: F16C13/00
Filed: 1969-12-12
Abstract: 1305033 Roller conveyers UNIVERSAL CONVEYER CO Ltd 21 Oct 1970 [12 Dec 1969] 60836/69 Heading B8A [Also in Division F2] A roller which may be used on a roller conveyer (Fig. 2, not shown) comprises a pair of stub axles 12, each axle being biased outwardly of the roller body 4 by a spring 14 which, at its inner end, is engaged by a rod 16 common to both axles. A circlip 13 limits the extent to which the axle 12 can move outwardly. A bearing assembly 6 is received in a counterbore 5 of the roller body 4, and a flange 6a of the assembly has punched dedepressions 10 to retain a bearing plate 8 in position.
Patent GB-1305657-A (GB)
IPC: B61G5/08
Filed: 1970-12-29
Abstract: 1305657 Air line stop valve for automatic railway central buffer couplings GERMANY MINISTRY OF TRANSPORT 29 Dec 1970 61433/70 Heading B7T [Also in Division F2] A stop valve for use with the air line in a railway vehicle automatic central buffer coupling comprises a housing 10 wherein a valve member (not shown) having a stem 11 is rotatable through a predetermined angle between on and off positions by means of an actuating lever 14, end positions of the swinging movement of the lever being defined by lobes 18 and 19 of a stop element 17, wherein the stop element is adjustable in its position relative to the housing to vary the end positions by a peg 21 in a holes 20 entering a selected hole 22, and a toggle joint 23 which ensures that the lever 14 is urged into one or the other of its end positions. One limb of the joint 23 comprises telescoping sleeves 25, 28 axially loaded by a spring 32. One end of the body is connected to the lever 14 and the other end connected to the stop element by means of the other limb forming a radial arm of the stop element.
Patent GB-1306022-A (GB)
IPC: G01P3/42
Filed: 1971-01-19
Abstract: 1306022 Measuring speed electrically INTERNATIONAL COMPUTERS Ltd 19 Jan 1972 [19 Jan 1971] 6501/71 Heading G1N A velocity transducer comprises a pair of members 24, 25 fixed relatively to one another providing a pair of unlike poles N, S, which are coupled by a magnetic field.which cuts a pair of elongated parallel coils 22, 23 so that relative movement between the members and the coils induces signals in the coils which are additive to give an output indicative of relative velocity. P.T.F.E. tubes over the magnets provide low friction movement. The magnetic poles may be provided by magnets of cobalt-steel, Alcomax (R.T.M.) or barium ferrite. If the material is temperature sensitive compensation may be provided by feeding the output to a variable gain amplifier which includes a temperature sensitive feedback loop incorporating copper wire resistor. The arrangement is associated with a disc store head drive unit, Fig. 3 (not shown).
Patent GB-1307527-A (GB)
Title: Apparatus for determining the coordinates of the centre of an  approximately circular form
IPC: G01B7/31
Filed: 1969-05-14
Abstract: 1307527 Measuring co-ordinate values electrically RANK ORGANISATION Ltd 1 May 1970 [14 May 1969] 24533/69 Addition to 1076253 Heading G1N Apparatus for determining the co-ordinates of the centre of a circular hole or shaft differs from that disclosed in the main Specification 1076253 in that, instead of using a filter, the output from sensor 3 is gated for one complete cycle through a differential harmonic analyser tuned to the fundamental frequency. The output of the analyzer is sampled at orthogonally disposed positions, the outputs being stored in, for example, capacitors 11, 12 and displayed on meters 13, 14 which are calibrated to indicate the X and Y co-ordinates of the centre of hole 4. The analyzer itself may itself provide the sine and cosine components and may incorporate capacitors. If these are open circuited simultaneously they may effectively take the place of the stores 11, 12. An appropriate circuit utilizing the differential harmonic analyzer itself is indicated in Fig. 2 (not shown).
Patent GB-1315047-A (GB)
Title: Transportation means
IPC: A63G7/00
Filed: 1970-12-21
Abstract: 1315047 Child transportation means SUBMARINE PRODUCTS Ltd 20 Dec 1971 [21 Dec 1970] 60584/70 Heading A6M Child transportation means comprises a track 1 including a rack formation 2 and a vehicle 3 having wheels 4 for guiding the vehicle along the track and a pinion which is engageable with the rack and which is rotatable by manually or foot operable driving means so that the child can propel himself along the track while supported by the vehicle. As shown the driving means consists of two cranked handle 14 connected by a toothed flexible belt to a rear axle of the vehicle, the pinion engaging the rack being also positioned on this axle. The track may be moulded from a synthetic plastics material and may be in sections for joining together.
Patent GB-1315535-A (GB)
Title: Selvedges of woven fabrics
IPC: D03D47/40
Filed: 1970-06-25
Abstract: 1315535 Woven fabrics; shuttleless looms CROMPTON & KNOWLES CORP 25 June 1970 [25 June 1969] 30882/70 Headings D1K and D1E A woven fabric with a knitted selvedge has an additional selvedge thread C that is knitted with only some of the weft loops L and floats through the other loops. The additional thread C may be knitted with every second, third. fourth or with every alternate pair of weft loops and may be fed through a guide 20 that is selectively placed in a position to be caught by a selvedge knitting needle 18.
Patent GB-1315939-A (GB)
Title: Colouration process
IPC: D06P3/32
Filed: 1969-07-31
Abstract: 1315939 Dyeing fibrous substrates IMPERIAL CHEMICAL INDUSTRIES Ltd 15 Oct 1970 [31 July 1969] 38435/69 Heading D1B Fibrous substrates are dyed or printed by applying a dyestuff having an amino group bound to a saturated carbon atom the amino group having at least one hydrogen atom which is replaced by reacting before, during or after the dyeing or printing by the acyl group of an ester of a polybasic carboxylic or carbothioic acid. Wool, silk, leather, cotton, viscose rayon, di- and tri-cellulose acetate, polyamides, polyesters, polyurethanes and polyacrylonitrile fibres may be dyed with water-soluble or water-insoluble dyes, a heat treatment, e.g. steaming or dry heat may be employed to cause reaction between the dye amino group and the ester.
Patent GB-1317278-A (GB)
Title: Copolyesters
IPC: C08G18/42
Filed: 1970-06-16
Abstract: 1317278 Treating polyester fabrics IMPERIAL CHEMICAL INDUSTRIES Ltd 8 Sept 1971 [16 June 1970 4 Sept 1970] 29126/70 and 42535/70 Heading DIP [Also in Division C3] A dispersion of a copolyester prepared from polyethylene terephthalate and polyethylene glycol or its monomethyl ether is used to impregnate polyester fibre fabric, the treated fabric having good antistatic and antisoil properties.
Patent GB-1320314-A (GB)
Title: Vehicle guidance system
IPC: G05D1/02
Filed: 1969-07-01
Abstract: 1320314 Automatic steering AUTOTRACK SYSTEMS Ltd and P C D Ltd 29 June 1970 [1 July 19691 33286/69 Heading G3R A vehicle, e.g. a tractor, is steered automatically to maintain paths parallel to buried conductors supplied with A.C. at 2kHz. To select a desired path relative to a conductor, a detector including horizontal and vertical coils on ferrite rods is adjusted to a corresponding position along a boom across the front of the tractor. The phase of the output of the horizontal coil relative to the vertical coil is detected by a phase-sense sensitive discriminator the magnitude and polarity of the output of which is indicative of the positional error of the tractor. This output is applied through a limiter, amplifiers and a bridge rectifier to control the mark-space ratio of a low-frequency transistor multi-vibrator which thus corresponds to the magnitude of error independently of sign. Pulses from the multi-vibrator control, through one or other of two gating circuits according to the sense of error, the energization of one or other of two solenoid operated valves so that a hydraulic steering ram is operated in the appropriate direction to correct the steering. Negative feedback, suitably phase-shifted, is applied from a potentiometer operated with the steering mechanism. Potentiometers may be set to provide a dead band of predetermined width to eliminate response to small error signals.
Patent GB-1326299-A (GB)
Title: Fuel atomizer apparatus
IPC: F02M29/04
Filed: 1971-06-07
Abstract: 1326299 Atomizing charge J GRAZIANO JNR 7 June 1971 19200/71 Heading F1B A fuel atomizer comprises a cylindrical atomizing chamber casing 12, Fig.1, an intake manifold comprising pipes 16 with their ends positioned near the bottom of and in fluid communication with the atomizing chamber, a carburetter upstream of the casing and a single deflecting metal cone 22 within and completely enclosed by the cylindrical wall of the atomizing chamber, the cone being coaxial and pointed upstream of the casing. The cone may be sintered and the openings 18 substantially imperforate.
Patent GB-1326914-A (GB)
Title: Masted lift trucks
IPC: B66F9/10
Filed: 1971-11-22
Abstract: 1326914 Side-loading masted lift trucks CLECO ELECTRIC INDUSTRIES Ltd 22 Nov 1971 [21 Nov 1970] 55477/70 Heading B8H A lift truck comprises a mast 2 having fixed and movable sections 14, 12, the mast 2 being movable transversely of the truck, an arm 4 being joined to the fixed mast section 14 and thus being movable with the mast 2 in a guide 5 secured to a fixed mast 6 to provide stabilization of the mast 2. Chains 8 running over pulleys 10 ensure that the arm 4 traverses the truck in unison with the base of the mast 2. The mast 2 is rotatable about 180 degrees at a pivot 22 at the end of the mast-steady arm 4, such that the lift forks 20 mounted thereon may project laterally from either side of the truck. An operator's cabin 18 is elevatable on the fixed mast 6.
Patent GB-1327791-A (GB)
Title: Shaft couplings
IPC: F16D3/00
Filed: 1971-05-28
Abstract: 1327791 Sweep arms BOYTHORPE CROPSTORES Ltd 28 May 1971 [14 May 1970] 23302/70 Heading B8E [Also in Division F2] A coupling for operably connecting for relative angular displacement, the rotary drive for a sweep auger, comprises input and output shafts 64, 68 connectible to the rotary drive  output and the sweep auger respectively, and being connected in end to end relationship by a pair of abutting flanges 66, 67 on the shaft ends, and slackly joined by at least three equiangularly spaced bolts 70. The bolts are threaded into apertures 72 in the flange 67 and pass with clearance through the flange 66, a shroud 80 on the flange 67 preventing ingress of silo material between the flanges. Material sweeping cleats 78 are provided on the shaft adjacent the flanges. The sweep auger is driven around the base of a silo from a central gear-box driven by a shaft extending through the centre of a discharge auger below the silo floor. A radial shield is provided under which the sweep auger may be stored when not operational.
Patent GB-1333563-A (GB)
Title: Cathode ray tubes
IPC: G01R13/22
Filed: 1971-04-23
Abstract: 1333563 Cathode-ray tube oscilloscopes G & E BRADLEY Ltd 23 April 1971 [5 May 1970] 21698/70 Heading H4T  The deflection sensitivity of a cathode-ray tube oscilloscope is changed automatically in accordance with the scale of a selected reference screen removably positioned in front of the tube screen, the sensitivity change being effected by changing the EHT voltage under the control of switch means operated by the screens when placed in position. Thus, as shown in Fig. 1, the actuating member 19 of the switch means 18 remains unoperated when the reference screen comprising a graticule 23 provided with a cutout 26 is placed in front of the tube face 21, the existing deflection sensitivity being appropriate to the scale of this graticule whereas, when a graticule 24 having a different scale and not provided with the cut-out portion is placed in position switch 18 is operated and results in an increase in the EHT voltage so that the deflection sensitivity is reduced to "match" the smaller scale of this graticule. In practice, graticule 23 is employed when the "writing speed" of the beam is below a predetermined speed and graticule 24 when it is above the latter speed so that the increased beam energy in the latter case produces a trace having a brightness equal to that produced by the lower writing speed.  When the tube, which preferably utilizes electrostatic deflection, is of the type in which changing the post deflection acceleration (PDA) also changes the deflection sensitivity additional switches operated by the appropriate graticule may be employed to change the PDA voltage in appropriate manner. The reference screens may alternatively comprise shapes against which a signal is compared or a K-rating graticule and the switch operating means may comprise conductive elements forming part of the screens or the latter may be provided with pins of different lengths operating switches set at different distances from the front panel or a series of holes may be provided for co-operation with appropriate sensing means. A filter may be positioned with the reference screen in front of the tube. The EHT is derived by rectification of the output of an oscillator, the degree of positive feed-back of which is changed to change the magnitude of the output by a negative feed-back circuit including a resistance member which is short circuited by closure of switch 18 (Fig. 2, not shown).
Patent GB-1337577-A (GB)
Title: Threshold value switches
IPC: H03K17/30
Filed: 1970-12-16
Abstract: 1337577 Variable threshold transistor switches ELEKTRO-APPARATE-WERKE BERLIN-TREPTOW VEB 16 Dec 1970 59695/70 Heading H3T An adjustable threshold switch includes two differential amplifiers T2, T3 and T6, T7 with a positive feedback cross-coupling of T3, T6, and a reference voltage 15 applied to T3 base through a variable resistor 18 and to T7 base directly. In the circuit shown in Fig. 2, R19, R20 and R21 are adjustable to vary threshold, and R18 is variable to set hysteresis. A Zener diode 9 drives an output transistor T11. R20 may be omitted and R21 replaced by a direct connection (Fig. 1, not shown). The resistor R21 and battery 15 may be replaced, alternatively, by a circuit (Fig. 3, not shown) in which four transistor collectors (T24-T27) are connected to the print 17 so that R20 forms their common collector load, their emitters being connected through respective resistors to a positive supply line. The base of one transistor (T24) is connected through a resistor (33) to a potential which sets a minimum threshold voltage at point 17. The other bases are connected through resistors to inputs (29, 30, 31) receiving the outputs of a binary counter, whereby the reference voltage at 17 is increased stepwise by a regular pulse source such as an astable multivibrator (37) driving the counter. The emitter and base resistors of the first transistor (T24) are adjustable.