baber/WOPTO huggingface dataset:
Patent GB-187875-A (GB)
Title: An improved shock absorber for road vehicles
IPC: B60G11/42
Filed: 1921-12-03
Abstract: 187,875. Moon, W., Martin, W. G., and North British Rubber Co., Ltd. Dec. 3,1921. Spring shackles.-Relates to shock absorbents for road vehicles of the type having a rubber disc interposed between the end of the leaf spring and the vehicle, and consists in clamping the disc C between compression plates A, D by means of bolts M which pass outside the disc. The com. pression plate D is supported by the bolts M passing through end-bars B<1> of a shackle B connected to the spring, while beneath the plate D bears a nut F on the end of a rod J supported from the frame bracket E by a bolt N passing through a slot K in the shackle B. The rod J may have a shoulder J' bearing on the plate A, on which the end-bars B' bear.
Patent GB-732491-A (GB)
Title: Improvements in and relating to uptwisting and like textile twisting machines
IPC: D01H1/16
Filed: 1952-12-23
Abstract: 732,491. Sound proof spindle guards. SCRAGG & SONS, Ltd., E., and SCRAGG, E. P. R. March 19, 1954 [Dec. 23, 1952], No. 32535/52. Class 120(2). [Also in Group XIII] An uptwisting or like textile machine has its spindles enclosed by sound proof guards made in bay lengths to extend from end to end of the machine, each length being in two parts, one part being attached to the machine and the other detachably mounted on the first part to provide access to the spindles. As shown each part comprises internal and external wall members 5 and 4, and 12 and 11 respectively enclosing sound absorbing material such as fibre glass 10 and felt 9. Inspection openings 15 are provided in the front part and at the top there are openings 16 partly in the back part and partly in the front part for the thread to pass upward from the spindle.
Patent GB-883876-A (GB)
Title: Electrostatic precipitator
IPC: B03C3/60
Filed: 1959-09-24
Abstract: 883,876. Electrostatic precipitation. FARBENFABRIKEN BAYER A G. Sept. 24, 1959 [Oct. 13, 1958], No. 32573/59. Class 39(1) In a method of purifying chlorine gas, produced in the electrolysis of aqueous, alkali metal halide, solutions, by passing it through an electrostatic precipitator the discharge electrodes consist of titanium wires or metal wires coated with titanium. The collecting electrodes consist of plates or fabrics the surfaces at least of which consist of glass or ceramic materials.
Patent GB-307322-A (GB)
Title: Improvements in or relating to the control of electric motors
IPC: H02P5/48
Filed: 1927-12-05
Abstract: 307,322. General Electric Co., Ltd., and Kahn, M. Dec. 5, 1927. Constant-speed control systems. - In order that a motor 2 may run at a constant speed relative to a master motor 1, a series field-winding 4 of the motor 2 is differentially compounded with a. shunt field-winding 6, and a correcting field-winding 9 is switched in positively or negatively whenever there is a sufficient angular difference between the positions of a segmental contact-disc 11 on the shaft of the motor 1 and a brush-carrier 17 driven by the motor 2. A number of motors may be similarly controlled from a common master motor. In a modification, the field-winding is switched in gradually through a stepped resistance 10, the different steps being connected to different segments of the disc 11. The invention is applied to motors driving elements of paper-making machinery.
Patent GB-361565-A (GB)
Title: Process for preventing the detrimental formation of lime and magnesia soaps in textile treatment baths
IPC: C11D10/04
Filed: 1930-10-31
Abstract: The formation of lime and magnesia soaps in textile treatment baths, which are made up with hard water and contain soap or Turkey red oil, is prevented by adding products obtained by sulphonating primary higher aliphatic alcohols containing at least eight carbon atoms in the molecule, or alkali or ammonium salts thereof.  Insoluble soaps already formed in textile treatment baths are dispersed by the addition of the same products.  Advantageously, alkali phosphates may also be added, and the sulphonated products may be added to water used for rinsing.  Sulphonated octadecyl and lauryl alcohols and the products obtained by sulphonating the mixture of alcohols obtained by reduction of coco-nut oil fatty acids are mentioned. p Specifications 317,039, [Class 2 (iii), Dyes &c.], 318,610, (as open to inspection under Sect. 91 of the Acts), [Class 15 (ii), Dyeing, Processes &c. for], and 351,403 are referred to.  The Specification as open to inspection under Sect. 91 (3) (a) comprises also the use for the same purpose of any sulphonated higher aliphatic alcohol. This subject-matter does not appear in the Specification as accepted.
Patent GB-506586-A (GB)
Title: Ovens or kilns for use in the manufacture of earthenware tiles, bricks and the like
IPC: F27B17/00
Filed: 1937-11-29
Abstract: 506,586. Brick &c. kilns. HOLDING, H. R. Nov. 29, 1937, No. 32844. [Class 51 (ii)] In a downdraught brick &c. kiln of the kind in which the bag wall 5 is extended upwards to follow more or less the contour of the roof 4a, the extended portion 3a is formed to provide a passage 3c which tapers in the direction of flow of the heating-gases as shown, or alternatively is flared in the same direction. The doorways in the bag walls are arched to provide additional strength.
Patent GB-815289-A (GB)
Title: Improvements in rectifiers utilising semi-conducting material
Inventor: KINMAN THOMAS HILARY
IPC: H01L23/051
Filed: 1954-11-12
Abstract: 815,289. PN-junction rectifiers. BRITISH THOMSON-HOUSTON CO. Ltd. Nov. 9, 1955 [Nov. 12, 1954], No. 32849/54. Class 37. An hermetically sealed rectifier (Fig. 1) comprises a slab 1 of e.g. Ge or Si containing a PN junction mounted between and in electrically conductive contact with conductive members 2, 3, e.g. of Cu, which are respectively sealed to the inner peripheries of metal annuli 10, 8, the member 3 being insulated from annulus 8. The annuli, e.g. of Cu, are sealed together at their outer edges. In the embodiment member 3 is hermetically sealed to ceramic ring 5, annulus 8 sealed to disc 5 and ceramic ring 9 (or two half rings) is hermetically sealed over the annulus to ring 5 to form a sub assembly. A second sub assembly is formed by welding annulus 10 to the flange 7 of member 2. The sub assemblies are brought together with the semi-conductor slab 1 between them and heated to join the slab to members 2 and 3 which are each provided with a soft solder layer. The rims of the annuli are then soldered or hot or cold welded together to form a sealed unit. The sealing may be done in an appropriate atmosphere if gas filling is required, or the enclosure may be evacuated after sealing through a suitably mounted tubule. The annuli prevent undue heating of the slab in sealing and assist in cooling during operation.
Patent GB-796577-A (GB)
Title: Polysiloxane compound
IPC: C07F7/08
Filed: 1956-10-29
Abstract: The invention comprises the compound 1,1,1,5,5,5 - hexamethyl - 3 - trimethylsiloxy-3-vinyl trisiloxane of the formula: CH2=CHSi[OSi(CH3)3]3, and polymers thereof.  The compound may be prepared by (1) cohydrolysis of vinyl trichlorosilane and trimethylchlorosilane in an aqueous organic solvent system; (2) reaction of tris-(trimethylsiloxy) silane with acetylene; or (3) equilibration of hexamethyl disiloxane with triethoxyvinylsilane. The compound polymerizes to soluble, linear polymers and may be copolymerized with other olefinic compounds such as styrene, acrylonitrile, vinyl acetate, vinyl chloride and N-vinyl pyrrolidone and with sulphur dioxide. The trisiloxane or its copolymers may also be equilibrated with siloxanes such as dimethyl siloxanes.
Patent GB-1506762-A (GB)
Title: Hydraulic rotary pumps or motors
IPC: F01B1/06
Filed: 1975-08-06
Abstract: 1506762 Positive displacement rotary or reciprocatory machines ROBERT BOSCH GmbH 6 Aug 1975 [12 Sept 1974] 32937/75 Headings F1A and F1F In a hydraulic pump or motor comprising a rotor 16 in which radial pistons or vanes 18 are reciprocated by co-operation with an eccentric ring 20, the resultant R of the forces which the pistons or vanes apply to the ring 20 are opposed by the force F st  of a spring 26 and by the reactive force W of an abutment surface 21 having a curvature selected to ensure that whatever the eccentricity e the forces F st , R and W are kept in equilibrium. Thus the eccentricity e of the ring automatically adjusts to produce a condition in which, for a given speed, the product of the delivery or entry pressure and flow-rate is constant. The abutment surface 21 is formed on a pin 22 which carries a lever 23, the pin being adjustably clamped in position by a screw 24 extending through an elongated hole in the lever 23. The way in which the curvature of the abutment surface 21 is calculated is described in conjunction with Figs. 4 and 5 (not shown), it being shown that the curvature is dependent on the speed, whereby the pin 22 has to be replaced for one with a different curvature if the speed if changed.
Patent GB-1285825-A (GB)
Title: Trichlorotrifluoroethane solvent compositions
Inventor: MCMILLAN IAN
IPC: C23G5/028
Filed: 1970-07-07
Abstract: 1285825 Cleaning solvent IMPERIAL CHEMICAL INDUSTRIES Ltd 21 June 1971 [7 July 1970] 32942/70 Heading C5D The cleaning properties of trichloro-trifluoroethane may be enhanced by mixing it with methyl acetate. The preferred isomer is 1,1,2- trichloro-1,2,2-trifluoroethane and the preferred mixture is in azeotropic proportions. In an example, soldering flux is removed from a printed circuit board by immersing the board in a boiling solvent mixture.
Patent GB-264646-A (GB)
Title: Improvements in or relating to the recovery of waste material from used or discarded ropes or cables
IPC: D07B7/18
Filed: 1925-12-31
Abstract: 264,646. Jagger, B. Dec. 31, 1925. Untwisting ropes. - In a machine for untwisting ropes, cables, &c. the frames carrying the spools upon which the untwisted strands are wound are mounted upon the face of one rotary main frame. The spool frames 3 are rotated relatively to the main frame 2 at such speed in an opposite direction to that of the main frame that the spool frames remain horizontal, the frames 3 being driven from the frame 2 by gearing comprising shafts 10 mounted radially upon the frame 2 and carrying bevel wheels 11, 8 meshing respectively with a wheel 12, fixed to the frame 2, and wheels 7 secured upon the frames 3. Motion is transmitted from the spool frames 3 to the spools 4 by means of bevel gearing 41, 42 and friction wheels 37, 38; and strand guiding devices 34 are reciprocated parallel to the axes of the spools by rotation of the spools 4 transmitted through worm gearing 19, 20 and cams 25. The rope &c. to be untwisted is supplied upon a reel 44 and fed to the untwisting head by a feed roll 47 operated either from the untwisting head or manually. The core of the untwisted rope may be led through a hollow shaft 14 to which the main frame 2 is secured.
Patent GB-1476566-A (GB)
Title: Closure for containers
IPC: B65D41/18
Filed: 1975-08-07
Abstract: 1476566 Container closures WALTER WEIDMER PLASTIKFORM 7 Aug 1975 [30 Aug 1974] 33016/76 Heading B8T A closure comprises a retaining member 3 for embracing a bead 1 of the neck of a container 2 and a gripping tab 8 integral with or secured to the retaining member which has a zone 31 of steadily decreasing wall thickness in both circumferential directions from the axis 80 of the tab 8 to points 32 and then the wall thickness steadily increases in both circumferential directions to the point 33. The points 32 are each preferably spaced an eighth of the circumference of the retaining member from the axis 80. A region 34 of constant wall thickness may be interposed between the regions of decreasing and increasing wall thickness. The circumferen. tial extent of the regions 34 may increase between the top and bottom surfaces of the retaining member (shaded portion in Fig. 2).
Patent GB-677460-A (GB)
Title: Improvements in directional radio transmission systems
IPC: H01Q3/18
Filed: 1949-12-28
Abstract: 677,460. Directive radio systems. PILLOT DE COLIGNY, G. DE. Dec. 28, 1949 [Dec. 29, 1948], No. 33076/49. Class 40 (vii). A directive radio system, particularly for use as a radio beacon, comprises a reflector as described in Specification 677,457 constructed from a plurality of strips taken from the surfaces of successive ones of a family of paraboloids and having a linear focus, and a plurality of radiating elements transmitting distinguishable signals and situated at spaced intervals along the focal line. Fig. 4 illustrates a continuously rotating beacon whereof the vertical polar diagram comprises a plurality of overlapping beams 68, 69, 70 produced by radiators 58, 59, 60 situated along the focal line of the reflector 63. The radiators comprise waveguide apertures fed from a, common waveguide coupled to a pulsed magnetron transmitter. Gas switches in the coupling guides between the common guide and the apertures are arranged to suppress a selected proportion, different for each gas-switch, of the pulses applied thereto so that the signals radiated from the various apertures are distinguishable by virtue of their different pulse repetition frequencies. In an alternative arrangement each aperture radiates a pulse pair whose spacing is characteristic of the aperture. The different beams may alternatively comprise continuous-wave signals and be distinguished by different modulation signals applied thereto. An aircraft may accordingly determine its angular position with respect to the beacon, azimuthal angle being determined by the interval between reception of a " North " signal and of the beacon transmission and elevational angle being determined by the particular distinguishing characteristic of the received signal. The Specification as open to inspection under Sect. 91 states that, instead of using a plurality of radiators, a single linear radiator comprising a longitudinal slot cut in a waveguide may be used. The Specification as open to inspection under Sect. 91, also discloses matter forming the subject-matter of Specification 677,510. This subject-matter does not appear in the Specification as accepted.
Patent GB-920513-A (GB)
Title: Process for the polymerization of ª -olefinic hydrocarbon material and catalysts foraffecting such polymerization
IPC: C08F12/08
Filed: 1959-03-26
Abstract: Three-component catalysts for the polymerization of a -olefinic hydrocarbons comprise (1) an aluminium compound of the formula RAlX2, where R is an alkyl, aryl or aralkyl radical containing 1-12 carbon atoms and X is chlorine, bromine or iodine, (2) a halide, alkoxyhalide, acetylacetonate or alkoxide of titanium, zirconium, vanadium, chromium or molybdenum, and (3) a compound of any of the four general formulae <FORM:0920513/IV(a)/1> and <FORM:0920513/IV(a)/2> wherein Y1 is an alkoxy group of 1-8 carbon atoms, Y2 is an alkoxy or alkylamino group of 1-8 carbon atoms and the Y's may be the same or different, Y3 is an amino or an alkylamino group of 1-8 carbon atoms, Y4 is an amino or an alkoxy or alkylamino group of 1-8 carbon atoms, R is hydrogen or an alkyl group of 1-8 carbon atoms and n is 1-4.  Specified components (3) are tris-N,N-dimethylphosphoramide, triethyl phosphate, trioctyl phosphate, triethyl phosphite, tributyl phosphite, N,N-dimethylacetamide, dimethylformamide, adipamide and mixed phosphate amide-esters, e.g. C2H5OP(O)(NEt2)2.  Specified olefines which may be polymerized include ethylene, propylene, 1-butene, styrene, 3-methyl-1-butene, 4-methyl-1-pentene, 1-pentene, vinylcyclohexane, allylbenzene, butadiene, isoprene and 1,3-pentadiene and mixtures of ethylene and propylene. Polymerization is preferably effected in the presence of an inert organic diluent, e.g. an aliphatic, cycloaliphatic, aromatic or alkylaromatic hydrocarbon or a halogenated hydrocarbon, many such diluents being specified.  Hydrogen may be introduced into the polymerization reaction to alter the molecular weight of the polymers.  The polymers are isolated using the common extraction and washing procedures.
Patent GB-534134-A (GB)
Title: Improvements in or relating to arc extinguishing devices for electric circuit interrupters of the air break type
IPC: H01H9/34
Filed: 1939-12-30
Abstract: 534,134. Arc-rupturing in switches. WESTING- HOUSE ELECTRIC INTERNATIONAL CO. Dec. 30, 1939, No. 33108. Convention date, Jan. 4. [Class 38 (v)] An arc-extinguishing structure comprises, Figs. 2, 3, a pair of insulating end-plates 33, 35 and insulating plates 37, which are spaced apart by members 43 and secured to the plates 33, 35 by bolts 45 passing through a lower pair of insulating tubes 41. An upper pair of tubes 41 admit bolts (not shown) for securing the structure to a supporting panel, the tubes 41 maintaining the spaces 43 in place along their inner edges while side cover plates 47 support their outer edges. Disposed above, and forming a continuation of each plate 37 is a magnetic plate 53 cut away at 57 whereby each is secured by bars 55. The arc is drawn at the wide ends of a series of slots 51 formed in the plates 37 and rises initially under magnetic and thermal action until the effect of plates 53 forces it into the narrow parts of the slots where it is put out by an up-draught of cool un-ionized gas. Dimensions of plate thickness and separation and of slot-ends are given in the Specification whereby D.C. arc voltages of 250 per inch and over and alternating current voltages of 350 per inch and over can be interrupted. The plates are of refractory, non-gas evolving materials such as asbestos-board, soapstone, quartz, titanium oxide, or the cold-molded, artificial porcelain composed of 30 per cent. talc, 2 per cent. felspar, and the rest clay. The slots must be led as near as possible to the magnetic plates, and, to avoid damage by the arc, Fig. 6, short-circuited copper sheaths 69 are placed about the yokes of U-shaped magnetic plates 67, the limbs of which register with cut-away parts 65 of the plates 37. These sheaths also produce a phase-shift in the flux in the plates 67 so that flux will be available at the current-zero. In this form also certain of the plates 37, every third one, for example, are replaced by plates 59 extending beyond the plates 67 to increase the interrupting voltage along the stack. A further improvement may be obtained by staggering the slot-ends as shown at 61, 63 for the plates 59, 37, respectively, so that if the arc is momentarily extinguished at the apexes, it restrikes lower down, so producing an oscillating effect which decreases the burning of the slot ends. The staggered arrangement may also be used in Figs. 2 and 3. Reference has been directed by the Comptroller to Specification 530,199.
Patent GB-194395-A (GB)
Title: Improvements in and relating to applications for use in electric arc welding
IPC: B23K9/073
Filed: 1921-12-09
Abstract: 194,395. Strohmenger, A. P. Dec. 9, 1921. Heating by electricity.-In a system of electric arc welding in which the generator has a series differential field winding 3 and a main shunt field winding 2 connected to one coil 5 of a transformer, the other coil 4 of which carries the load current, a reactance or choking coil 9, preferably with an adjustable core, is connected in the welding circuit for resisting sudden rise and fall of the current in this circuit. Instead of the transformer winding 5 being included in the shunt field winding circuit, it may be included in the circuit of a separately excited winding provided on the generator in addition to the windings 2. 3. A variable resistance 10 may be connected in series with the welding arc 6, or it may be connected across the field winding 3. Specifications 1274/12, 11079/12 and 13538/14 are referred to.
Patent GB-210578-A (GB)
Title: Improvements in chain drive mechanism
IPC: F16H7/08
Filed: 1922-12-06
Abstract: 210,578. Royce, F. H. Dec. 6, 1922. Dynamos and magnetos, driving.-In tensioning means for driving-chains, particularly applicable to systems for connecting the crank shaft, cam shaft, and dynamo shaft of internal combustion engines, the dynamo shaft also driving the water pump and magneto, a tension wheel b<2> is moved automatically to correct tensioning-position and is clamped in that position. The crank shaft a<1> and cam shaft a<2> are connected by a chain passing over the wheel b<2>, which is formed with two integral sprocket rings. A second chain connects the dynamo shaft a<3> with the other section of the wheel b<2>. The wheel b<2> is carried on a bar b, which slides on the casing a and is slotted at each end to receive bolts a<4>, a<5> secured in the casing. The bolt a<5> is shrouded by a block b", against which bears a spring b<14> pocketed in the arm b. Nuts b<5>, b<16> on the bolts a<4>, a<5> are loosened to allow the spring to press the arm to the desired tensioning position and are tightened to clamp the arm in position. Locking rings b<6> may limit the loosening of the nut b<5>.
Patent GB-397896-A (GB)
Title: Aeroplane brakes and their controls and valves therefor
IPC: B64C25/48
Filed: 1931-12-02
Abstract: 397,896. Fluid-pressure brakes. DUNLOP RUBBER CO., Ltd., 32, Osnaburgh Street, London, GOODYEAR, E. F., WRIGHT, J., and TREVASKIS, H., c/o Dunlop Rubber Co., Foleshill, Coventry. Dec. 2, 1931, Nos. 33371/31 and 20184/32. [Class 103 (i).] Control means for aeroplane brakes comprise a number of fluid - pressure relays positioned in angular relation for simultaneous equal or differential actuation by a common link which controls in each relay the deformation of a yielding diaphragm and the movement of spring-loaded valves for admitting or releasing fluid pressure to or from the brakes. A finger lever on the main control column actuates a Bowden cable 11, Fig. 3, to move a quadrant 14 having a spherical end 15 engaging a link, in a guide 23 carried by a bracket 19. The link is connected to a pin 22, normally coaxial with the cable 11, from which links 21 extend to two sleeves 24 in radiating valve chambers 20. Normally the guide 23 makes equal angles with the two links 21, but by turning the bracket 19 about a ball bearing 17, the guide 23 and the quadrant 14, which is mounted between cheeks 16 on the bracket 19, are turned also, so that movement of the quadrant causes unequal movements of the links 21. Each sleeve 24 as it moves into the valve casing compresses a spring 29 to move a hollow stem 28 against a valve 33 to close an exhaust passage through the stem and open a valve 36 to admit pressure fluid from a pipe 5 to a chamber 35. As the pressure builds up it presses on a diaphragm 30 to close the valve 36 when the pressure equals the initial compression of the spring. The chambers 35 communicate through pipes 7, 8 with brakes on the two sides of the machine. The pipes 5, 7, 8 are compressed on to nipples by screwed rings 40, 41 having tapered parts compressing lead packing rings 42. Additional relays in parallel planes may be employed when more than two brakes are to be applied, by extending the pin 22 and duplicating associated parts. Identical relays are described in Specifications 397,895 and 397,897, [both in Group XXXIII]. According to the earlier Provisional Specification, the inlet port comprises an orifice in the side of a closed tube entering the valve chamber at right-angles to its axis, the orifice being controlled by a conical valve actuated by a sleeve moved by the stem 28. According to the later Provisional Specification, the pipes 7, 8 may communicate with chambers having diaphragms acting upon an oil transmission system leading to brakes having distensible annuli in the brake drums.