baber/WOPTO huggingface dataset:
Patent GB-487716-A (GB)
Title: Improvements in radio directive systems
IPC: H01Q3/32
Filed: 1937-05-04
Abstract: 487,716. Directive wireless signalling. STANDARD TELEPHONES & CABLES, Ltd. May 4, 1937, No. 12709. Convention date, June 5, 1936. [Class 40 (v)] Relates to means for improving the directive characteristic, so as to prevent selective and general fading, in " steerable " directive aerial arrays of the kind described in U.S.A. Specification 2,041,600. The array consists of a number of spaced rhombic units, as shown in Fig. 1, the maximum directive lobe of which can be adjusted, within limits, by phase-changing devices controlled from a single handle 8. Each unit consists of a rhombic conductor 1 of optimum size combined with a larger unit 2 and a smaller one 3. The apex angles 4 are adjustable, and impedances 9 render the system unidirectional. In Fig. 2A, the typical directive lobe of each aerial unit is shown at 10, whilst the lobe for the array is shown at 11. By combining the two, the more-sharply defined lobe 13 is obtained. According to the invention, the maximum lobe 13 is aligned with the path of the downcoming signals 17, the unit lobe 10 also includes that path, and the axis 14 of the "null" lobe of the unit aerial is aligned with the adjacent sub-maximum lobe 12 of the array, thus ensuring the most efficient directional response possible. British Specifications 353,517 and 392,201 also are referred to.
Patent GB-777954-A (GB)
Title: Improvements in or relating to axial-flow and centrifugal compressors and gas turbines
Inventor: FEILDEN GEOFFREY BERTRAM ROBER
IPC: F01D25/18
Filed: 1954-05-01
Abstract: 777,954. Axial-flow compressors; gas turbines. RUSTON & HORNSBY, Ltd. April 27, 1955 [May 1, 1954], No. 12720/54. Classes 110 (1) and 110 (3). [Also in Group XXXIV] In an axial-flow or centrifugal compressor or a gas turbine, leakage of lubricating oil from a space in which it accumulates to a space where its presence would be undesirable is prevented or reduced by maintaining an air pressure in the first space which is greater than that in a space into which the oil can be discharged harmlessly through a standpipe. In the axialflow compressor shown, which may form part of a gas turbine plant, lubricating oil supplied to a bearing 20 tends to drain into a space 28 around the bearing housing 21. Air leaking through the junction 29 between an inlet casing 11 and a fairing 15 and also through the junction, in a horizontal plane, between the upper and lower parts of the fairing 15, might carry oil from the space 28 into the inlet channel 13 and thence on to the compressor blades. To prevent this, the space 28 is connected by ducts 32, 24 to a space 25 radially inward of the first row of rotor blades so that it is maintained at a pressure greater than atmospheric, so that the oil is discharged through a stand pipe 31 into a space 26 where the oil will be harmless. The ducts 24 also serve to feed air to a labyrinth seal 23. A rubber sealing ring 33 is provided.
Patent GB-437380-A (GB)
Title: Improvements in or relating to machines suitable for cleaning boots or shoes
IPC: A47L23/02
Filed: 1934-04-28
Abstract: 437,380. Removing dust on generation. BRITISH UNITED SHOE MACHINERY CO., Ltd., BOOTHROYD, H., and HOLMES, G. W., Belgrave Road, Leicester. April 28, 1934, No. 12849. [Class 8 (ii)] [See also Group VII] In a shoe-cleaning machine, rotary brushes 43, 45 are provided with a hood 41 ending in a flap 65 pivoted to the hood and held in normal position by wing nuts 67. A plate 69 curves forwardly from the rear wall of the hood below the axes of the brushes. From the hood, dust-laden air is drawn by a fan 73 and directed to a box having four fabric tubes upstanding therefrom for retaining the dust.
Patent GB-1146467-A (GB)
Title: Stabiliser compositions for polymers
IPC: C01B25/16
Filed: 1966-03-23
Abstract: 1,146,467. Lead phosphite. ELECTROCHEMISCHE. WERKE MUNCHEN A.G. 23 March, 1966 [31 March, 1965], No. 12864/66. Heading C1A. [Also in Division C3] Leadphosphite suitable to stabilize polyvinyl chloride is produced from a lead compound and the phosphorous acid by-product of the reaction of phosphorus trichloride with a fatty acid at 50‹ to 70‹ C. The preferred lead compound is a suspension of lead monoxide in acetic acid, in excess so that basic lead phosphite is produced. Residual HCl may be removed from the crude phosphorous acid by a countercurrent flow of an inert gas at 45‹ to 70‹ C. The fatty acid is preferably an aliphatic carboxylic acid with from 8 to 16 C atoms. According to an example the phosphorous acid contained 2À0% lauric acid impurity.
Patent GB-271245-A (GB)
Title: An improved domestic washing apparatus
IPC: D06F39/00
Filed: 1926-05-21
Abstract: 271,245. Timpany, J. C. May 21, 1926. Wash-tubs combined with tables.-The tub is formed with flat sides 1a and a dished bottom 1b having curved upper extensions 1c forming the sides and leaving an opening 2 which, when the apparatus is not in use, is closed by the rubbing board 8. A shelf 10 is provided within the tub to carry the soap &c. The struts around the opening 2 may carry a wringer which can be housed in the tub when not in use. A table cover, not shown, is pivoted to the far side of the apparatus. Specification 223,714 is referred to.
Patent GB-290440-A (GB)
Title: Improvements in or relating to means for supporting linoleum, american cloth and the like, prior to being made up into rolls
IPC: D06N3/00
Filed: 1927-05-16
Abstract: 290,440. Webster. E. May 16, 1927. Suspending devices. - Linoleum. &c. is suspended while wet, for example, during drying, upon seamless metal tubes 2 or metal or wooden bars having renewable sheaths 3 of metal or paper and supported near the roof of the drying-room in end-brackets 1 one or both of which may be removed to facilitate the removal and replacement of sheaths that have become coated with cork &c. The sheaths may be formed with overlapping or spaced edges so as to grip the tubes or bars.
Patent GB-1384765-A (GB)
Title: Production of longitudinally ribbed and transversely bent objects
IPC: B21D13/02
Filed: 1972-03-21
Abstract: 1384765 Angular bending and corrugating E BAUMANN 21 March 1972 [22 March 1971] 13137/72 Heading B3E A sheet 11 is simultaneously bent and longitudinally corrugated by supporting the sheet with tools 3,4 along strip-shaped areas, each of which extends on both sides of a portion of a bending line having the portions spaced on opposite sides of a central axis, and bending the sheet along the line together with the simultaneous formation of the corrugations. Alternate tools in each of two sets 1 and 2 are slidably mounted in guides 6 and 8 and are pivotally connected to the remaining tools of the respective set by pivoted links 9. In operation the sheet is inserted into slots 10 in the tools 3 and 4 and the tool sets pivoted relative to one another to form a transverse bend in the sheet. Simultaneously the tools lying between the guided tools are pivoted upwardly or downwardly to form the corrugations. In another embodiment (Fig. 11, not shown) the guides 6 and 8 are replaced by tubes mounted on guides for movement parallel to the longitudinal axis of the sheet.
Patent GB-175925-A (GB)
Title: Tape measure holder and pincushion
IPC: G01B3/10
Filed: 1921-05-09
Abstract: 175,925. Slater, M. H. May 9, 1921. Work companions.- A pincushion shaped to resemble a head and adapted to be suspended by a pigtail 9, Fig. 3, formed of threads which may be detached as required for use, has disposed in a casing in its interior a spring controlled reel on which is would a tape measure 18. The free end of the tape measure is provided with a stop fashioned to represent the tongue of the mouth of the head through which the tape measure is withdrawn. A bellows adapted when compressed to emit a whistling sound is arranged within the head and is actuated by a cam 34 mounted on the reel. A container 13 for needles &c. closed by a cap 14 is arranged in the head below the reel. In a modified construction shown in Fig. 6, the tape measure is omitted, the pincushion containing a box 9<1> closed at the lower end of a bottom 10<1> adapted to contain papers'of needles. The pigtail, which consists of coarse and fine threads braided together, is attached to a cover 8<1> which projects in to the box. The fine threads 17<1> are passed through the cover and project downwardly to represent a fringe of hair.
Patent GB-131513-A (GB)
IPC: D21F1/00
Abstract: 131,513. Spencer, R. Nov. 1, 1918. Ground weaves.-Fabrics for use as jackets or couch-roll covers and dry felts for paper-making machines, collar machine felts used in ironing- machines, winders' listing on cotton winding- frames, &c. are woven with one warp and one weft so interwoven that the weft floats over two or more warps and passes under one warp, the side of which is mainly weft being used as the wearing side. The fabrics are fulled and finished in the ordinary manner. Fabrics for couch-roll jackets are woven endless, and dry felts in a long web made endless in the usual manner. When a thicker jacket is required, two layers are placed on the couch roll, the outer one being the fabric described and the inner one a strong material of the desired thickness.
Patent GB-131570-A (GB)
IPC: D03D41/00
Abstract: 131,570. Speiser, C. April 22, 1919. Addition to 118,802. Shedding-motions; stop-motions, warp; stopmotions acting on derangement of pile-yarn supply. In a loom of the kind described in the parent Specification and adapted to weave velvet ribbons in two layers or face to face, the pile warps a from the roller b are guided by rods d, e to make contact with a large part of the periphery of a draft roller c, and are tensioned by a rod f carried by a lever g, which is pivoted on the rod c and carries a weight h over two electric contacts i. If the pile warps become slack, the weight h closes an electric circuit controlling means for stopping the loom. Instead of an electric stop-motion, a mechanical one may be used. The harness frames are guided in the frame 5 and are actuated by levers 8 and eccentrics 13.
Patent GB-337344-A (GB)
Title: Pistons
IPC: F16J1/00
Filed: 1929-04-27
Abstract: 337,344. McQuaid, J. W. April 27, 1929. Pistons; packing.- In a piston which is especially applicable for pumps for sandy liquids, a body 13 of rubber is moulded on a rigid core 11, having a middle flange or flanges 14, and provided with ribs and grooves 15, 16. The ends of the body 13 are of greater diameter than the cylinder bore, and the end faces 19 are hollowed out to provide packing lips 13a, which are thickened at 20 adjacent to their edges.
Patent GB-1418400-A (GB)
Title: Method and apparatus for cooling steel
IPC: B21B43/00
Filed: 1973-03-19
Abstract: 1418400 Cooling steel bodies NIPPON KOKAN K K 19 March 1973 13172/73 Heading C7N A steel body (e.g. a billet, bloom or slab) is cooled by placing on a skid 2 having a central cavity 9 in its upper surface and directing a liquid coolant into the cavity to cool the overlying surface of the steel body and on to the remaining area of the steel body thereby to minimize the difference in temperature between the skid contacting area of the steel body and the remaining area and to cool the steel substantially without deformation. The skid contacting area may be cooled prior to commencing cooling of the remaining area and the cooling rate may be controlled by admixing gas until the coolant (e.g. water) which may be introduced through spray or mixing nozzles or in the form of a plurality of jets.
Patent GB-131803-A (GB)
IPC: G11B17/00
Abstract: 131,803. Cameron, D. Nov. 30, 1918. Actuated or applied by speed regulators.-The disc 0 sliding on the spindle e of a governor is overlapped by a brake-pad U at the end of a pin p<2> capable of longitudinal adjustment. A spring Y thrusting from the frame-post h tends to apply the brake, and a screw p<1> or a lever is used to ease it.
Patent GB-442706-A (GB)
Title: Improvements in or relating to continuous feed mechanism for sound picture films
IPC: G03B31/02
Filed: 1935-05-03
Abstract: 442,706. Gearing for conveying rotary motion. TOMLINS, F. C., Melbourne House, Aldwych, London.-(Electrical Research Products, Inc. ; 195, Broadway, New York, U.S.A.) May 3, 1935, No. 13209. [Class 80 (i)] [See also Group XXXVIII] In combined sound- and - picture film apparatus, for obtaining uniform velocity of a filmfeeding sprocket wheel, the sprocket is driven by a multiple arrangement comprising motordriven gears connected through an elastic coupling to the sprocket and a pulley which is rigidly connected to the sprocket and to which a separate drive is transmitted by a belt. A single motor 20 is employed in the construction shown, the motor driving shafts 25, 26 through wheels 22, 23 and through reduction gearing in a gear-box 24, the shaft 26 being provided for feeding the film 2 through the picture head (not shown). On a shaft 4 is a sprocket 1 for feeding the film past the sound gate 3. A pulley 5 is fixed on the shaft 4, and is connected through light springs 15 and a spider 13 to a sleeve 9, to which is secured a wheel 7 gearing with a wheel 8 on the shaft 25. A belt 18 passes over the pulley 5 and over a pulley 19 on the motor shaft 21. When the machine is driven at normal speed, the belt creep causes some stressing of the springs 15, whereby the teeth of the gear 7 are pressed against those of 8 in the non- driving direction. The sprocket shaft 4 is thus driven uniformly by the belt, but only at a rate permitted by the gears 7, 8. Momentary variations in the velocity of the gears are absorbed by the springs. In a modification, (Figs. 3 and 4, not shown), instead of using a common motor, the pulley is driven by a small separate motor which has a slightly greater driving torque than that required by the normal load of the film. During the driving of the film, the springs are stretched a given amount, and thus absorb the excess torque of the motor and regulate its speed. The belt-driving motor may be a 1 /100 H.P. three-phase induction motor, and is secured to a base which is adjustably mounted on a shaft, whereby the required tension of the belt may be obtained. The speed-regulating apparatus described in Specifications 275,582 and 297,135, [both in Class 38 (iii)], may be used in carrying out the invention.
Patent GB-1084666-A (GB)
Title: Microwave amplifier
Inventor: MCPHUN MICHAEL KEITH
IPC: H03F3/12
Filed: 1966-03-25
Abstract: 1,084,666. Tunnel diode amplifiers. MULLARD Ltd. March 25, 1966, No. 13291/66. Heading H3T. [Also in Division H1] A tunnel diode amplifier has independent means for determining the bias source D.C. resistance and the A.C. stabilizing resistance. The input signal is extracted from waveguide G<SP>1</SP> by a dielectric surrounded probe P and passed to the tunnel diode D through a quarter-wave matching section l 1 , the impedance of the line being variable by means of a slider U so as to vary the matching and thus the gain. Across the diode is connected a matching section L1 slightly less than a quarter wavelength to make it appear inductive and a bandwidth limiting quarter-wave line l 3  coupled by a capacitor, C3, variation of which varies the bandwidth. The power supply provides a voltage which determines the D.C. working point on the diode characteristic, e.g. the point for least noise, and a choke isolated resistor R3 which, it is explained, controls the dynamic range of the amplifier by determining the apparent D.C. resistance of the supply source. The supply is connected through a stub line 5 having a non- reflective lossy termination C2, R1 (equivalent to the correspondingly referenced components in the equivalent circuit of Fig. 4, not shown) and this provides stabilizing resistance independent of the apparent D.C. resistance of the supply source. The waveguide G<SP>1</SP> may be associated with a circulator.
Patent GB-128998-A (GB)
Title: Improvements in Attachment Devices for Constructional Connections particularly applicable to Aircraft.
IPC: B64C1/08
Filed: 1917-09-17
Abstract: 128,998. Blackburn Aeroplane & Motor Co., and Copley, J. W. Sept. 17, 1917. Framework.-A strut socket, particularly for use in aeroplane framework, is stamped from a sheet-metal blank of the form shown in Fig. 1. and bent as shown in Fig. 2 to receive the end of the strut. One or more holes 11 are formed in the base to take bolts for securing the device to a longitudinal member of the frame, and holes 8 are formed in the sides 2, 3 to take pins for securing bracing-wire attachments. The bracing-wire attachments may comprise U-shaped loops passing around the pins as described in Specification 116,984.
Patent GB-133019-A (GB)
Abstract: 133,019. Commercial Electrolytic Corporation, (Assignees of Laughlin, R.). Sept. 21, 1918, [Convention date]. Ordnance, cleaning; machine guns.-A material for removing fouling from gun barrels consists of a solution of a number of reacting substances each separately prepared in tablet form. Tablets of caustic soda and tablets of a mixture of ammonium sulphate and ammonium persulphate may be used, the tablets being dissolved together when required for use. The caustic soda may be mixed with a lubricating binder such as talc, stearic acid, powdered soap, or graphite to facilitate formation of the tablets.
Patent GB-1056415-A (GB)
Title: Improvements in or relating to tunable circuit arrangements
IPC: H03D9/06
Filed: 1964-03-31
Abstract: 1,056,415. Radio receiving arrangements; transistor circuits; modulators. TELEFUN KEN PATENTVERWERTUNGS G.m.b.H. March 31, 1964 [March 29, 1963], No. 13331/64. Headings H3Q, H3R and H3T. The invention relates to a tuning arrangement comprising a line 4 approximately a quarter wavelength long, tuned over a waveband by means of a variable capacitor 3 connected between the end of the line and screening enclosure 1. The tuning can also be varied by means of a varactor diode 14, over a restricted frequency range, and according to the invention the width of this is made independent of the setting of the main tuning capacitor 3: this is achieved by supplementing the normal inductive coupling provided by loop 19 with a capacitive coupling comprising capacitor 15 which is connected to a tap on line 4, in conjunction with R.F. choke 17. As shown the arrangement comprises the oscillator circuit of a self-oscillating mixer 5 in a radio receiver, the signal being applied to the emitter via coupling loop 9. The oscillator is of the modified Colpitts type with its collector connected to a tap on line 4 via capacitor 6; according to a modification of the invention, the coupling capacitor 15 is connected to the line indirectly, via capacitor 6.
Patent GB-1473623-A (GB)
Title: Liquid feedstuffs for ruminants
IPC: A23K10/33
Filed: 1975-04-01
Abstract: 1473623 Animal feed HENS VOEDERSLES ALIMENTS HENS SA NV 1 April 1975 [2 April 1974] 13334/75 Heading A2B A liquid feedstuff for ruminants comprises a heated mixture of urea, molasses and an acid, at least 51 % of the acid being hydrochloric acid. Other acids which may be present include phosphoric acid, sulphuric acid, acetic acid, formic acid and propionic acid. The pH after mixing may be 2-3 and the mixture may be heated at 80-85‹C.
Patent GB-220391-A (GB)
Title: Improvements in and connected with sheet metal containers or drums
Filed: 1923-05-18
Abstract: 220,391. Mitchell, W. A. May 18, 1923. Ends.-The flanged ends of metal drums or like containers are welded to the ends of the body portions along one or more lines, the welded joints being protected and strengthened, by folding or curling over the flange of the end on to or with the end of the body. Fig. 2 shows a form in which two lines x, x<1> of welding are formed, Fig. 3 shows a form in which the welding line x<2> extends through the seamed part of the joint, and Fig. 6, shows a construction in which the folded parts after welding are swaged to a curved section.
Patent GB-257029-A (GB)
Title: Improvements in the ventilation and cooling of electro-magnetic coils for dynamo electric machines of the salient pole type
IPC: H02K3/18
Filed: 1925-05-21
Abstract: 257,029. Fletcher, F. P. May 21, 1925. Field magnets, cooling. - In dynamo-electric machines with salient poles, the pole windings have U- shaped plates inserted for cooling purposes during the building up of the coil, the winding passing from side to side of the plates through gaps therein. As shown, the limbs a and base of the plates have depending flanges b around which the winding passes across the opening c. The plates may be ribbed, and in a modification, they are bent over outside the coil where they are brazed to a water jacket.
Patent GB-849238-A (GB)
Title: Cyclododecadiene monoepoxide, and its production from cyclododecatri-(1,5,9)-enes
Filed: 1958-04-28
Abstract: The invention comprises cyclododecadiene epoxide with a b.p 13mm. of 133,8 to 134,2 DEG  C. which may be prepared by epoxidation of cyclododecatri- (1, 5, 9)-ene, preferably the transtrans-cis or trans-trans-trans configuration, with an organic peracid or other organic per-compound.  Suitable per-compounds are performic acid, peracetic acid, trifluoro-peracetic acid, perbenzoic acid or acetaldehyde peracetate.  The latter may be used as described in Specification 735,974.  The epoxidation is preferably effected at temperatures from 0 DEG  to 100 DEG  C. in a solvent which is inert to the per-compound, such as aliphatic or aromatic hydrocarbons, or their halogen or oxygen derivatives.  The cyclododecadiene monoepoxide can be hydrogenated selectively to cyclododecane epoxide or completely to cyclododecanol.  The latter can be oxidized to cyclododecanone which can be converted into its oxime and the latter by Beckmann transformation into the lactam of o -aminododecanoic acid which is used in polyamide plastics.  The cyclododecanol can be split, e.g., with nitric acid, to form decane-1, 10-dicarboxylic acid.  The production of cyclododecatri-(1, 5, 9)-enes is described in Specification 849,236.
Patent GB-673079-A (GB)
Title: Improvements in or relating to a method of producing insecticidal compositions of matter and the insecticidal compositions of matter resulting from said method
IPC: C07C23/38
Filed: 1949-05-20
Abstract: 4.7 - Methano - 3a.4.7.7a - tetrahydro - 4.5.6.7.8.8-hexachlorindene (i.e. the adduct from hexachlorcyclopentadiene and cyclopentadiene) is reacted with selenium dioxide and a carboxylic acid inert to the selenium dioxide in presence of water, thus obtaining the 1-acyloxy derivative of the starting material, which may then be reacted with hydrogen chloride in presence of water and an esterification catalyst to replace the acyloxy group by chlorine and give 4.7 - methano - 3a.4.7.7a - tetrahydro - 1.4.5.6.7.8.8-heptachlorindene.  Organic acids specified are acetic, propionic, butyric, benzoic, and these may be used as solvent for the reactants, or an added solvent such as chloroform, carbon tetrachloride, benzene, toluene, hexane, pentane, and dioxane may be used.  Metallic selenium formed may be removed before the second stage above.  Catalysts specified are aluminium and ferric chlorides, antimony pentachloride, boron trifluoride, zinc chloride, titanium tetrachloride, hydrogen fluoride, stannic chloride, boron trichloride, aluminium bromide, sulphuric acid, phosphoric acid, and phosphorus pentoxide.  An example is given, using acetic acid, and zinc chloride.