baber/WOPTO huggingface dataset:
Patent GB-714286-A (GB)
Title: Improvements in or relating to variable attenuators for low frequency electrical circuits
Inventor: SHEARSTONE JOSEPH
IPC: H03H7/24
Filed: 1952-02-11
Abstract: 714,286. Radio receivers. SHEARSTONE, PETERS & DUNN, Ltd. Feb. 6, 1953 [Feb. 11. 1952], No. 3550/52. Class 40 (5). [Also in Group XXXV] A variable attenuator or coupling transformer for low or audio frequency use comprises an input coil A and an output coil B co-axially mounted in a tube C of magnetic material, the coils A and B being movable relatively to each other; the wall thickness of the tube C being greater than 3.5/###Á# in metres, where f is the minimum frequency of the circuit in cycles per second, Á the magnetic permeability of the tube material in henrys per metre at the frequency f and # the electrical conductivity of teh tube material in ohms per cubic metre. The coil A is placed in the cathode circuit of a driver valve D which is controlled by an oscillator valve H the frequency of operation of which is variable by means of a switch H3 the valve D driving an amplifying valve E in the anode circuit of which is a transformer supplying an electro-acoustical device F, such as a telephone. The coil B of the attenuator is placed in the cathode circuit of the valve E, and movement of this coil B relatively to coil A will vary the intensity of the sound output from the device F when the oscillator is working into the circuit at constant amplitude. Movement of a control knob L rotates a cam L4 which acts on the shaft B1 to move the coil B in the tube C against a spring B2. The apparatus may be used as an audiometer and in such cases it will be necessary to compensate for the variable responses of the device F and of the normal human ear to different frequencies. A second control knob K operates a switch H3 to alter the frequency at which the valve H oscillates. At the same time movement of the knob K causes a cam K4 to rotate, the profile of which is shaped so as to produce movement of the coil A-in a manner similar to that of coil B-such that movement of the coil A relative to coil B effects compensation for the varying responses of the device F and the human ear as the frequency at whi:h the apparatus works is altered. Other types of oscillator such as a beat frequency oscillator or a resistance capacitor oscillator may be used and the operation of the coils may be effected by rack and pinion mechanism or by Bowden cable control, or again by a simple screw and nut mechanism. A number of such attenuators may be ganged and controlled by a single shaft, the control of each attenuator being dissimilar by having differently shaped cams. Two devices F may be used having differing responses, the second device being controlled by a further cam on the same shaft as the cam K4.
Patent GB-159094-A (GB)
Title: Improvements in and connected with pump buckets and pistons
IPC: F16J9/20
Filed: 1920-06-17
Abstract: 159,094. Love, G. W., (Scobie, J. K.). June 17, 1920. Piston packing. - Packing for the piston or bucket of a water pump consists of a split cast-iron steel ring B, of channel section, completely embedded in white metal c, which is cast round it.
Patent GB-1167495-A (GB)
Title: Improvements in Buttons
Inventor: BRYAN ROBERT ARTHUR
IPC: A44B1/32
Filed: 1966-01-27
Abstract: 1,167,495. Buttons. BUTTONS Ltd. 10 Jan., 1967 [27 Jan., 1966], No. 3648/66. Heading A3H. A button comprises a head part 11 with projections 17, a shank with an elliptical cross section and a boss 16 extending therefrom and which passes through the fabric and is secured by a dished resilient washer 22. The washer has an inturned part provided with a central hole and slits to provide resilient teeth 24, which grip the boss 16. A cover 20 for the washer has an inturned flange 21 which grips one side of the fabric. The shank has two projections 17 which grip the other side of the fabric. Alternatively for use as a dummy button the shank terminates in the plane of the button the head part which has an annular groove, providing a rim. The button is attached to the fabric by a rod having a socket at one end to accommodate the boss and a point at the other end, which point is inserted into one side of the fabric to provide the hole for the boss and the rod is withdrawn from the other side. The washer and cover are then attached to the boss. The boss may have an annular grrove in which the washer fits. The washer is made of spring metal or plastics and the button is made of metal or plastics.
Patent GB-1385331-A (GB)
Title: Catalytic reactor in the exhaust system of a motor vehicle
IPC: F01N3/20
Filed: 1972-01-26
Abstract: 1385331 Purifying exhaust gases NISSAN MOTOR CO Ltd 26 Jan 1972 [20 July 1971] 3664/72 Heading F1B [Also in Division H1] A catalytic reactor 12 in a motor vehicle exhaust system has an air pipe 16 extending through the catalyst bed 10 and a temperature detector 30 which produces an electrical signal when the temperature of pressurized air leaving the air pipe exceeds a pre-selected value. The air is supplied to the pipe 16 by a secondary air source 20. The detector 30 may comprise a bimetallic strip 32 which abuts an adjustable contact 38 to complete an electrical circuit when the air temperature in the chamber 26, bearing a relationship to the catalyst bed temperature, exceeds the pre-selected value. The detector (40), Fig. 2 (not shown) may comprise a rod (44) movable axially against spring bias by a temperature detecting portion (42). The detector 30 may energize a solenoid valve 52, Fig. 4, to change the connection of diaphragm chamber 64 to the intake manifold to connection with the atmosphere. The spring-biased diaphragm then moves a valve member 72 to divert the exhaust gases through a reactor by-pass pipe 174.
Patent GB-682699-A (GB)
Title: Air spray guns
Inventor: MITCHELL ROBERT BERTRAM
IPC: B05B1/30
Filed: 1950-02-13
Abstract: 682,699. Spray-producers. AEROGRAPH CO., Ltd. Jan. 30, 1951 [Feb. 13, 1950], No. 3670/50. Class 69 (iii). A spray gun having a compressed air inlet 2, a paint inlet 3 and a trigger 4 controlling air and paint valves 5 and 6, includes an additional control of the air from the outlets 12, 13 which flattens the spray. This control comprises a valve 21 on a spindle 20 which slides within a sleeve 22 screwed within a hollow part 14. A pin 26 on the spindle slides within a slot 25 in the sleeve, and the valve is opened the required amount by rotating the spindle knob 27 with the pin in engagement with the rear of the slot, and the sleeve and valve move rearwardly together. The valve is closed by sliding the spindle forwardly on to its seat 17, thus cutting off the air supply to the hollow part 14 and the outlets 12, 13. The sleeve is slotted at 24 and its end splayed, so that it grips the inner wall of the part 14 to prevent its accidental rotation.
Patent GB-1493551-A (GB)
Title: Drive axle system useable in 6x6 vehicle
IPC: B60K17/348
Filed: 1976-01-30
Abstract: 1493551 Differential gearing EATON CORP 30 Jan 1976 [13 Feb 1975] 03723/76 Heading F2D [Also in Division B7] A tandem axle drive assembly 11 for a vehicle having a gear-box 5, two driven rear axles R 1 , R 2  and a driven front axle F comprises an interaxle differential 29 which divides driving torque received from the gear-box 5 through an input shaft 21 between the two rear axles and includes a first side gear 47 having teeth 55 meshing with a gear 59 for driving the leading rear axle R 1 , and a second side gear 51 coupled to a shaft 21 for driving the trailing rear axle R 2 , there being in mesh with the gear 59 a gear 103 connectible by means of a clutch 111  to a shaft 101 for driving a propeller shaft S extending forwards to the front axle F so that torque from the first side gear 47 drives the front axle in addition to the leading rear axle. The clutch 11 may be controlled manually or automatic control means may be provided which engage the clutch when a speed differential between the front axle and the rear axles indicates that there is rear wheel slip. A clutch 87 for locking the differential 39 is engaged automatically when a speed difference of more than a predetermined amount occurs between the leading and trailing rear axles.
Patent GB-954517-A (GB)
Title: A device for shaping a strip of paper or other flexible sheet material into a flexible tube
IPC: B31B50/40
Filed: 1963-01-30
Abstract: 954,517. Formers for flexible tubes. HAMACHANSELLA A.G. Jan. 30, 1963 [Jan. 31, 1962 ; Jan. 11, 1963], No. 3802/63. Heading F2P. A rigid tubular former 1 for mating flexible tubes of paper or plastics by shelping has an end face forming a deflecting edge 2 of cosinusoidal curvature over which the tube material passes and which gives the material a substantial V-shape as it approaches the former. A strip of paper 3 passes over a roller 4 and is tensioned by the crest 5 of the former 1, the side portions of the V-shape of the strips being tensioned less than the apex. The edge 2 of the former is rounded to reduce its cutting action. In a second embodiment the crest 5 of the edge 2 is preceded by a pad 8, Fig. 3 (not shown), which takes up the tension.
Patent GB-663659-A (GB)
Title: Improvements in or relating to stringer tapes for fasteners
IPC: A41H37/00
Filed: 1949-02-11
Abstract: 663,659. Stringer tapes for fasteners. WALDES KOH-I-NOOR, Inc. Feb. 11, 1949, No. 3813/49. Drawings to Specification. Class 142(iv) [Also in Group XXV] Stringer tape for sliding clasp or other fasteners to be welded to thermoplastic garments has a warp of natural fibre, for example, cotton, and a weft of thermoplastic material which melts below the scorching temperature of the warp, for example, "Vinylite" (R.T.M.); or the warp threads at the edge to be welded may be "Vinylite" and the remainder cotton, the weft being all cotton. Cords are sewn to the fastener carrying edge to form beading. Specification 592,759 is referred to.
Patent GB-348520-A (GB)
Title: Improvements in illuminated box signs, rear lights for vehicles and the like
IPC: B60Q1/44
Filed: 1930-02-05
Abstract: 348,520. Vehicle &c. lamps. LÍBL, A., 55, Florianigasse, Vienna. Feb. 5, 1930, No. 3852. [Classes 75 (ii) and 75 (iii).] Lantern fronts; material.s, special.-A watertight lampcasing 1 is formed as a unitarv structure of artificial resin or other relatively opaque compressible or mouldable material, the front face being provided with portions 4 in the form of characters or other indications, which have their thickness reduced to such an extent as to permit the passage of light from a lamp mounted on the detachable back 2. Alternatively, the characters may be formed as thick portions, the rest of the facia being thin enough to be translucent. As applied to a " stop " sign for a vehicle, the casing is divided by a partition into two chambers each having its own illuminant, the word " stop being formed on one side of the facia while the other side is of uniformly reduced thickness and is suitably coloured to act as a red rear light.
Patent GB-562933-A (GB)
Title: Improvements in or relating to driving means for rotary valves of internal combustion engines and the like
IPC: F01L7/08
Filed: 1943-03-12
Abstract: 562,933. Valve gear. ASPIN, F. M. March 12, 1943, No. 4082. [Class 7 (vi)] A rotary valve 13 having a conical surface bearing against a housing 12, is splined at 20 to a driving member 19 supported coaxially with the valve by a ball bearing 18 in a bearing housing 23, the upper part of which carries a' plain bearing 17 for the driving member 19, while the lower is located in the housing 12 by a spigot 22a and is bolted thereto, the arrangement giving the valve axial and some lateral freedom. The driving member 19 comprises a pinion 16 driven by a worm wheel 15 on a shaft 14 carried by the housing 12 and the bearing housing 23 comprises the upper part of a two-part member, the lower part 21 of which, is bolted to the housing 12. In assembling, the bearing housing and the driving member form a unit which is slipped into place over the valve 13. Specification 463,412 is referred to.
Patent GB-127032-A (GB)
Title: Improvements in or relating to Apparatus for Determining and Correcting the Course of an Aircraft.
Inventor: POLLEN ARTHUR HUNGERFORD
IPC: F41G3/24
Filed: 1917-03-21
Abstract: 127,032. Pollen, A. H., and Landstad, H. F. March 21, 1917. Sights and methods of sighting.-Consists of a linkage by means of which the course to be steered by the pilot of an aircraft so that he may pass over a given object on the ground is automatically indicated to him so long as an observer keeps a sight on the object. The speed through the air, and the speed and direction of the wind, are set up on a linkage, one member of which carries the sight to be kept directed on the object. In the construction shown in Fig. 1 the linkage is mounted upon a magnetic compass. A rotatable ring 19 carries an arm 3 for setting the wind, speed, and direction, a block 6 being screw-traversed to a distance from the compass centre proportional to the speed of the wind, and the ring 19 rotated by means of a handle 20 so that the arm 3 is in the wind direction. The speed through the air is set up by a traversing block on an arm 2 carried by a ring 24 rotatable by means of a handle 23. A sighting-bar 5 is carried by pivots X and Y on the adjustable blocks of the arms 2 and 3 and is kept directed on the object, the arm 2 being suitably rotated while the arm 3 is maintained over the compass bearing of the wind. The movements of the ring 24 carrying the, arm upon which the speed through the air is set up are communicated by suitable gearing to an arm or lubber-mark rotating round a similar compass in front of the pilot. In one construction the movements are communicated to a similar ring rotatable round the outside of a stationary frame in which the outer gimbal ring of a compass is rotatably mounted, the gimbal ring being connected by a clamp to the outer rotatable ring, and the course to be steered being indicated by an arrow over the card.
Patent GB-100562-A (GB)
Title: Improved Number Plate for Motor Road Vehicles.
Inventor: WRIGHT WILLIAM
Filed: 1916-03-21
Abstract: 100,562. Wright, W. March 21, 1916. Signs or number plates for vehicles. The appliance comprises a box-like structure 1, the front 4 of which constitutes the number plate, a lamp 2 having a reflector 6 in front, a red pane 5, and an inclined reflector 8. The back of the box has a reflecting-surface. The novel feature of the combination is the reflector 6.
Patent GB-546763-A (GB)
Title: Improvements in tubulous boilers
IPC: F22B21/34
Filed: 1941-03-28
Abstract: 546,763. Water-tube steam boilers. BABCOCK & WILCOX, Ltd., and SPARKS, C. H. March 28, 1941, No. 4186. [Class 123 (ii)] The gases from the furnaces 1, 1<1> flow into a longitudinal gas passage 3 between the furnaces across banks of tubes 10 connected to upper and lower drums 14, 13 and arranged in staggered relationship and in longitudinal rows, the pitch of the tubes being increased and the rows shortened towards the front of the boiler to increase the flow of gases across the tubes at the front end of the gas passage. Superheaters 12 are disposed between the tubes. Downcomers 16 are shielded by refractory coverings and by boiler tubes 18. The gases flow from the gas passage 3 into transverse passages 33 containing additional water tube banks 35 connected to the ends of the upper and lower drums extending beyond the furnace chambers.
Patent GB-1376131-A (GB)
Title: Hydrostatic power transmission system
IPC: C12M3/04
Filed: 1971-02-09
Abstract: 1376131 Mixing apparatus NATIONAL RESEARCH DEVELOPMENT CORP 4 Feb 1972 [9 Feb 1971 4 Nov 1971] 4266/71 and 51343/71 Heading B1C [Also in Division C6] Tissue-cell culture apparatus includes a container for culture medium which encloses a compact cell support of a flexible strip material formed into turns which are spaced one from another to provide a passageway through which cells and medium can travel progressively on rotary movement of the support during inoculation. The strip material may be of polypropylene, oriented polystyrene treated by corona discharge to give a hydrophilic surface, unplasticised polyesters, aluminised polymers, stainless steel or aluminium, being materials exhibiting good cell adhesion, low toxicity, high strength, low weight, low cost, ready availability and a specified minimum surface tension. The support 10, Figs. 1 and 2, may take the form of a roll of polymeric material, the turns of which are spaced apart by two narrow corrugated strips 11, 12 one at each end of the roll. Spacing of the ends of the film from the surface of the neighbouring layer is assisted by the inclusion of two corrugated strips 13, 14 arranged along the length of the roll. The limbs of four L-shaped ribs 8, 9, serve to space the cell support within the culture vessel 1. The vessel is formed from two generally cylindrical portions 6, 7 of polystyrene joined at their rims by waterproof tape. The ports 2, 3 and 4 for culture medium, gas (CO 2 /air mixture) and exhaust, respectively, are closed by screw-threaded caps. The gas inlet port 3 communicates with a sparge tube 5. In a further construction, the vessel is enclosed with a gaspermeable plastics (specified) membrane 28, Fig. 9, protected by a ¥-inch plastics mesh work 35 and includes an elastomeric septum (34 on Fig. 8, not shown) through which cells grown on the support may be inoculated with virus.
Patent GB-511154-A (GB)
Title: Manufacture of plastic masses, films or lacquers from nitro-cellulose and chlorinated rubber or a chlorine-containing vinyl resin
IPC: C08L1/18
Filed: 1938-02-11
Abstract: 511,154. Nitrocellulose compositions. DEUTSCHE CELLULOID-FABRIK AKT.- GES. Feb. 11, 1938, No. 4346. Convention date, Feb. 18, 1937. [Class 2 (ii)] Chlorinated rubber or a chlorine-containing polymerisate derived from a monomer of the vinyl series is heated with a drying oil at a temperature of at least 110‹C., preferably in the presence of a. solvent such as an aromatic hydrocarbon, and the product of the heating is mixed with a solution of nitrocellulose. The resultant composition can be used in the manufacture of plastic..masses, films, or lacquers. The chlorine-containing polymerisates, derived from monomers of the vinyl series,. which are mentioned are polyvinyl chloride, after-chlorinated polyvinyl chloride.and mixed polymerisates of vinyl chloride with other monomers of the vinyl series capable of being polymerised, while drying oils mentioned are linseed oil, perilla oil, soya, bean oil and oiticica oil. The operation of heating the chlorinated rubber or chlorine-containing polymerisate with the drying oil may be conducted concurrently with the operation of mixing with the nitrocellulose. In examples, (a) polyvinyl chloride is boiled with xylene and linseed oil and the product is incorporated with a solution of nitrocellulose in a mixture of butyl acetate and toluene, (b) afterchlorinated polyvinyl chloride is boiled with toluene and linseed oil or a glycerine phthalate oleic acid resin containing an excess of linseed oil, and. the product is incorporated with a solution of nitrocellulose in a mixture of butanol, butyl acetate and toluene, (c) chlorinated rubber, nitrocellulose, linseed oil, butyl acetate and xylene are boiled together, (d) a mixed polymerisate from vinyl chloride and acrylic acid methvl ester is boiled with toluene and linseed oil and the product is incorporated with a solution of nitrocellulose in a mixture of acetone and toluene containing a softener such as camphor. Natural or artificial resins, filling' materials, pigments or soluble dyestuffs may be incorporated in the compositions at any suitable stage.
Patent GB-348155-A (GB)
Title: Improvements in and relating to roof construction
IPC: E04D1/36
Filed: 1930-02-08
Abstract: 348,155. Roofs. WALKER, F. T., 27, Derbyshire Lane, Sheffield. Feb. 8, 1930, No. 4365. [Class 20 (iv).] Tiled roofs comprise spars a of inverted V shape section with curved or bent-over flanges forming draining channels d and seatings e for the tiles f, and with lateral pins which engage the upturned edges g of the tiles and are covered by the dovmturned edges h of the tiles above. The ridge end of the spars may be provided with a flange k to be secured to the ridge m.
Patent GB-705008-A (GB)
Title: Improvements in and relating to lever escapements for time pieces
IPC: G04B15/08
Filed: 1952-02-19
Abstract: 705,008. Clocks. JUNGHANS, H., and JUNGHANS, AKT.-GES., GEB. Feb. 19, 1952 [March 5, 1951], No. 4408/52. Class 139 A lever escapement for timepieces provided with flexible pallet pins in co-operation with an escape wheel is characterized in that cooperating stopping members are provided on the escape-lever and on the shaft of the escape wheel, preventing overbanking of the escape-lever. A plate 5, Fig. 1, on the spindle of the escape wheel 4 co-operates with the projections 7a and 7b on the lever 7 to prevent overbanking. The flexible pallet pins 8 and 9 which are secured in eyelets in the lever 7 are thus never stressed to bending or breaking.
Patent GB-1022422-A (GB)
Title: Oestradiol ester and preparation thereof
Inventor: WATZEL RUDOLF
IPC: C07J1/00
Filed: 1965-02-02
Abstract: The invention comprises oestradiol 17-p-t-butylbenzoate and the preparation thereof by esterifying oestradiol with p-t-butylbenzoic acid or a derivative thereof or by hydrolysing or reducing a 3-ester or 3-ether of oestradiol-17-p-t-butylbenzoate.  The 3-methoxymethyl ether of oestradiol-17-p-t-butylbenzoate is prepared by reacting oestrone with chlorodimethylether to give oestrone 3-methoxymethylether, reducing this to oestradiol 3-methoxymethylether, and esterifying this.  Oestradiol 3-benzoate 17-p-t-butylbenzoate is prepared by esterifying oestradiol-3-benzoate.  The steroid ester of the invention, which is stated to be a powerful oestrogen, may be made up into pharmaceutical compositions with suitable carriers.  Solutions and suspensions are referred to.
Patent GB-849747-A (GB)
Title: Improvements in or relating to detergent compositions
Inventor: WOLHOFF JOHANNES ALBERTUS
IPC: H03B27/00
Filed: 1958-02-11
Abstract: A soapless detergent composition contains (a) a per-compound, for example an alkali metal peroxide, percarbonate, perborate, persulphate, perphosphate or perpyrophosphate in an amount 1-25% by weight of the composition, and (b) a salt of a metal of Group IVb of the Periodic Table, suitably a titanium halide, titanyl sulphate, zirconium sulphate or oxychloride, sodium zirconium sulphate/silicate, ammonium zirconium fluoride, or potassium titanyl oxalate, preferably zirconium or thorium nitrate, and particularly potassium titanium fluoride, in an amount 0.02-3%, especially 0.2-1%, by weight of the composition.  The composition generally also includes 5-50% condensed phosphates, particularly sodium, potassium and ammonium meta-, pyro-, and tripoly-phosphates, and anionic or non-ionic detergents, or both, for example alkylaryl sulphonates, alkyl sulphates, amidoalkane sulphonates, isethionate esters and ethers, fatty acid monoglyceride sulphates, aliphatic sulphonates, condensates of ethylene or propylene oxide with alkylphenols, fatty acids, alcohols or mercaptans, or fatty acid mono- or di-alkanolamides. Alkali metal sulphates, chlorides, silicates, borates, carbonates and orthophosphates, starch, salts of carboxymethyl cellulose, stabilizers for per-compounds such as magnesium silicate, hydroxyquinoline, salts of nitrilotriacetic and ethylenediaminetetracetic acids, and orthotolyl biguanide, and fluorescent whitening agents may also be incorporated.  The compositions may be produced in solid or liquid form (all percentages given above are exclusive of solvents), but in a preferred embodiment ingredient (b) is added to a slurry containing at least the major part of the other ingredients of the composition and the slurry immediately spray-dried.