baber/WOPTO huggingface dataset:
Patent GB-535077-A (GB)
Title: Improvements in differential mechanism
IPC: F16D41/00
Filed: 1939-10-12
Abstract: 535,077. Differential gearing. DEHN, F. B. (Frederickson, C. E.). Oct. 12, 1939, No. 27741. [Class 80 (ii)] The differential driving mechanism for motors described in Specification 467,456 in which a twopart casing 14 having bearing hubs in which are received splined collars 3. 4 adapted to receive the half axles 1, 2 is constructed with a driving- clutch member 27 integral with the driving ring- gear 24, and the driven clutch members 8 are constructed so as to assist the lubrication by acting as grease pumps to cause the oil or grease (which is contained in a casing enclosing the gearing) to flow to and from the clutch faces during the time the gearing is differentiating. The plates 8 are formed with cylindrical pockets 9 adapted to receive coil springs which abut against discs 13 which limit the movements of the plates and which normally maintain the clutch teeth 21 in engagement with the teeth 27, these teeth being constructed as indicated in Fig. 9 tn allow of lost motion and so as to aid lubrication. Two rings 33 formed with recesses to receive ball bearings 41 are connected by riveting to a reduced web 26 integral with the driving clutch 27, and adjacent to the balls are recesses 11 in the pockets 9 to permit circulation of oil, and the ring flanges 12 of the plates 8 have notches in which the balls 41 lie. The edge of the clutch member 27 may be bevelled to aid lubrication.
Patent GB-483551-A (GB)
Title: Improvements in and relating to the formation of chemical coatings on metals
IPC: C23C22/83
Filed: 1936-10-14
Abstract: After the treatment of iron, steel, or zinc surfaces with solutions containing chromic acid, chromates, or dichromates, with or without mineral acids or mineral acid salts, to form protective coatings, the surfaces are rinsed with solutions containing chromic acid, oxalic acid, phosphoric acid, chromium salts, iron salts, or aluminium salts, or mixtures of these substances.  The rinsing solution is less acidic than the coating solution and the rinsing may be done as soon as a superficial coating has been formed, after the reaction of the coating solution is complete, or after the original coating has been formed, dried, and baked.  The rinsing is preferably carried out at a temperature of about 200 DEG  F., and it may be followed by a hot or cold water rinse.  The rinsing increases the resistance to corrosion and prevents the formation of blisters when siccative coatings such as paint, enamel, or lacquer are subsequently applied.  A preferred rinsing solution contains 4 grams of chromic acid per gallon of water: solutions of ferric, chromic, or aluminium nitrate are also specified.  A coating solution containing 35 gms. of chromic acid and 65 gms. of sodium chloride in 3 litres of water is described for treating steel panels, the panels being then rinsed in hot water, rinsed in chromic acid solution and baked at 600 DEG  F.
Patent GB-1478538-A (GB)
Title: Turntables
IPC: B65G/
Filed: 1974-06-24
Abstract: 1478538 Turntable MITSUI SHIPBUILDING and ENG CO Ltd 24 June 1974 [27 June 1973] 27881/74 Heading B8H A turntable for rotation of a heavy load comprises a load-bearing support frame 2 movably mounted on a circular track 4 by mounting frames 3, each frame being provided with expansible units 7, 8 carrying engagement means 14 for engagement with a series of locating members 15 provided around the track 4 so that when means 14 are engaged in appropriate members 15, expansion or contraction of the units 7, 8 effects rotation of the support frame 2. The units 7, 8 comprise piston-and-cylinder arrangements of which piston rods 12 are attached to the frames 3 by universal joints at pins 13, and the cylinders have laterally projecting plates 10 slidable in guides provided in the frames 3 and carry the members 14 in the form of vertical pins retractable by hydraulic piston/cylinder arrangements.
Patent GB-387427-A (GB)
Title: Improvements in and relating to hard metal compositions
IPC: B23K35/40
Filed: 1931-10-08
Abstract: Hard metal carbides, such as tungsten carbide are powdered, mixed with an agglutinant, for example, that described in Specification 346,683, shaped, and heated, for instance to 1100 DEG  C. in an atmosphere of hydrogen, to burn out the agglutinant, and to give the shaped carbide sufficient rigidity to enable it to be handled.  The porous mass is heated to 1150-1250 DEG  C. with copper, silver, or like soft conducting metal, which melts and enters the pores of the carbide.  A suitable composition for welding electrodes contains 20 per cent of copper.  Other applications of the compositions are burnishing wheels, switch contacts, trolley wheels, contact shoes for trolley wires, bearings.  Reference has been directed by the Comptroller to Specification 375,836.
Patent GB-699415-A (GB)
Title: Improvements in or relating to the production of microporous rubber sheeting
Inventor: MADGE EVELYN WILLIAM
Filed: 1950-11-16
Abstract: 699,415. Microporous rubber sheeting. DUNLOP RUBBER CO., Ltd. Oct 29, 1951 [Nov. 16, 1950], No. 28017/50. Classes 70 and 87 (ii).  Microporous rubber sheeting is produced by casting a heat vulcanizable unfoamed rubber latex composition containing a gelling agent into the form of a sheet with solid ribs, gelling the sheet under conditions which prevent escape of water, permitting access of a fluid heating medium to the surface, and vulcanizing the gelled sheet by contact with a fluid heating medium under conditions preventing escape of water therefrom. In a preferred embodiment for the manufacture of microporous hard rubber battery separators a latex mix containing 30 to 40 parts of sulphur and 2 to 3 parts of calcium formate to every 100 parts of rubber is added from a jacketed tank 11 (Fig.l) onto a grooved belt 1 of rubber covered fabric which had pieviously been treated with an aqueous solution of coagulant such as aluminium sulphate. from tank 9. The latex layer is carried under spreader 12 and through gelling chamber 14 which is filled with saturated steam after which the sheet may be sprayed with water from means 26. The gelled sheet 28 after passing roll 3 is delivered onto preshrunk porous fabric 17 and the two together wound onto a stock reel 18, which is then vulcanized in an autoclave by steam at 40-80 lbs. pressure. For separators, the sheets may be 0.03 to 0.05 inches in thickness. Specification 698,613 is referred to.
Patent GB-1018852-A (GB)
Title: Improvements in and relating to the preparation of thermoplastic film or sheet
IPC: B29C48/10
Filed: 1963-07-16
Abstract: 1,018,852. Laminates. HERMORION Ltd. July 16, 1963 [July 25, 1962], No. 28099/63. Heading B5N. To improve the heat-sealing properties of polypropylene film usable, after orienting by stretching, for packaging purposes, the film is laminated with a film of polythene and the laminate is cooled and stretched. The polypropylene film may be extruded upon the polythene, or the two films may be extruded through concentric annular orifices and bonded together by inflation of the so-formed tubes, stretching being effected by further inflation or the tubular laminate may be cut and stretched flat.
Patent GB-209818-A (GB)
Title: An improved photo-electric device
IPC: H01J40/04
Filed: 1922-10-16
Abstract: 209,818. Case, T. W. Oct. 16, 1922. Vacuum tubes.-In a light sensitive electric device in w h i c h the light-sensitive material is enclosed with an electrically-heated filament 1 and a plate electrode 2 within a bulb 4 which is exhausted or contains an inert gas, the light - sensitive material 7, such as sodium, potassium, or barium suboxide, is coated upon the interior surface of the bulb closely adjacent to the plate electrode.
Patent GB-363011-A (GB)
Title: Improvements in and relating to combs for waving human and other hair
IPC: A45D2/44
Filed: 1930-09-20
Abstract: 363,011. Hair combs. NASH, A. W., 15A, Fore Street, St. Austell, Cornwall Sept. 20, 1930, No. 28165. [Class 131.] A comb for waving human and other hair comprises two relatively adjustable parts a, b, Fig. 2, each provided with teeth, the teeth a<1>, b<1> of the two parts being of such cross section that in passing round one set of teeth the hair is bent gradually, and in passing round the other set of teeth the hair is bent sharply in a direction opposite to that in which it was bent in passing round the first set of teeth. The teeth a<1> may be of round cross section, and the teeth bl of half round, rectangular, or sector shape. In the modification shown in Fig. 4, the teeth e, f are of the same cross section but the teeth f are reversed relatively to teeth e. The two parts a, b are connected together by a pin and slot or other suitable device, and in use, the two parts are relatively displaced laterally after insertion in the hair, in order that the hair may be bent in the desired manner.
Patent GB-1042930-A (GB)
Title: Improvements in or relating to tropane derivatives
Inventor: JUCKER ERNST
IPC: C07D451/02
Filed: 1963-07-16
Abstract: The invention comprises compounds of formula <FORM:1042930/C2/1> wherein R is a hydrogen atom or a methoxy group, acid addition salts thereof, and their preparation by reduction of the corresponding N-nitroso-compounds.  6 - Methoxy - N - nitroso - nortropane is prepared by reacting 6-methoxy-nortropinone with hydrazine hydrate and an alkali metal hydroxide to form 6-methoxy-nortropane, and reacting this with cold sodium nitrite solution.  Compounds of formula <FORM:1042930/C2/2> wherein Hal is a chlorine or fluorine atom are prepared from the compounds of the invention by reaction with a 3-sulphamyl-4-chloro- or -fluoro-benzoyl halide.
Patent GB-751459-A (GB)
Title: Improvements in or relating to pumps
IPC: F04C2/14
Filed: 1954-09-30
Abstract: 751,459. Rotary pumps. BORG-WARNER CORPORATION. Sent. 30 1954 [Oct. 5, 1953], No. 28195/54. Class 110(2) In a gear pump comprising pressureloaded axially movable bushings, the means for reducing the tendency of said bushings to rotate with the gears comprises a resilient member or a pin. The movable bushings are provided with complementary recesses 33, 34 (see also Fig. 3, not shown), in which is placed a helical spring 36 under compression, or a dowel pin 37 (see Fig. 5, not shown). Specification 572,967 is referred to.
Patent GB-356501-A (GB)
Title: Improvements in or relating to glass signs, such as for advertising or like purposes
IPC: G09F13/06
Filed: 1930-09-22
Abstract: 356,501. Pictures; ornamenting. RADO, L., 10, Bismarckstrasse, Wannsee, Berlin. Sept. 22, 1930, No. 28261. [Classes 11 and 93.] A sign comprises a clear, fibreless, cellulose film 2 on which pictorial or other advertising matter is formed by embossing or otherwise, and a front protective glass plate 1, the upper surface of the cellulose film being provided with elevations and depressions to facilitate adhesion to the glass plate. The sign may be backed by a second sheet of glass, or by a corrugated cellulose sheet coated with metal foil to render it reflective. As shown, a reflector for producing a changing effect is employed, which comprises a number of reflecting elements 5 mounted on shafts 6 which carry bevel wheels 7 driven by corresponding bevel wheels 9 on a vertical shaft 8. The elements 5 may, if desired, be rotated at different speeds or in opposite directions, and may be coloured, curved, of different sizes or shapes, or reflective to different degrees. The cellulose films 2 are readily interchangeable.
Patent GB-887462-A (GB)
Title: Zigzag sewing machine
IPC: D05B19/00
Filed: 1960-08-16
Abstract: 887,462. Sewing machines. FAIRWEATHER, H. G. C. (Singer Manufacturing Co.). Aug. 16, 1960, No. 28346/60. Class 112 In a zig-zag sewing machine in which the needle bar gate is connected by a pitman to an oscillating member, the driving connection between the pitman and said member being adjustable away from and towards the pivotal axis of the latter for varying the extent of needle swing, the arrangement is such that the driving connection is physically disconnected when the pitman is adjusted to the position of minimum movement. One end of a pitman 43 is pivoted to a needle bar gate 4 pivoted on a fixed pin 6. The other end of the pitman passes through a slot in a plate 32 and carries a block 45 biased into engagement with plate 32 by a torsion spring 47 connected between gate 4 and pin 6. Plate 32 is pivoted at 27 to a bracket 23 pivoted on a fixed pin 21. A plate 37 has a sliding connection at one end with pin 21, is pivoted intermediately at 38 to bracket 23, and carries at its other end a follower pin 40 co-operating with a rotary pattern cam 16. A handle 49 on bracket 23 serves to vary the position of pivot 27 and thereby the centre line of the stitches. A bell crank lever 51 carries at one end a pin 53 engaged in a slot 54 in pitman 43, and at its other end a handle 51, manipulation of which serves to shift block 45 either towards or away from pivot 27 for varying the stitch width. When block 45 is aligned with pivot 27 for straight stitching, a face 57 on a lug 56 upstanding from block 45 engages the lower end of pivot 27 to shift block 45 away from plate 32 against the bias of spring 47, separation between block 45 and plate 32 then being ensured by a recess 58 formed in the latter. Follower pin 40 is also thereby separated from cam 16.
Patent GB-808681-A (GB)
Title: Means for transferring rolled articles
Inventor: HENSCHKER ERHARD RUDOLF
IPC: B21B39/00
Filed: 1956-09-17
Abstract: 808,681. Roller conveyers. LOEWY ENGINEERING CO. Ltd. Aug. 28, 1957 [Sept. 17,1956], No. 28377/56. Class 78 (1). In rolling mill installations elongated metal articles, e.g. billets or bars, are transferred from a roller table 1 to a similar table 2 arranged at an angle to each other by pusher elements on endless chains or cables 6 extending between sprockets 7, 8 and moving in guides 5 which make equal angles with the tables. A motor 13 drives the pulleys 7 through a series of reduction gears 14, the arrangement being such that the speed of each pulley is increased in accordance with its distance from the point of intersection of the tables.
Patent GB-421495-A (GB)
Title: Improvements in mouthpieces for smokers pipes, cigarette holders and the like
IPC: A24F7/00
Filed: 1933-10-14
Abstract: 421,495. Tobacco pipes. MANDERS, A., 2, Ewart Grove, Wood Green, London. Oct. 14, 1933, No. 28476. [Class 130] Mouthpieces for tobacco pipes, cigarette holders, &c., specially adapted for smokers having a tendency to bite through to the smoke bore, are formed with a bifurcated termination 4 to the smoke bore 1, and with a hole 5 between the bifurcations through which the teeth may meet, the sides of the hole being bevelled at 6. A third smoke passage may connect to the hole 5.
Patent GB-647152-A (GB)
Title: Improvements in electronic transducers
IPC: H01J21/08
Filed: 1947-10-24
Abstract: 647,152. Gramophone pick-ups ; microphones. RADIO CORPORATION OF AMERICA. Oct. 24, 1947, No. 28496. Convention date, Oct. 31, 1946. Drawings to Specification. [Class 40 (iv)] [Also in Group XL (a)] In a transducer of the type comprising a thermionic valve in which one electrode is movable with respect to the other (or others) under the control of mechanical forces applied thereto so as to produce corresponding variations of an electrical current, the movable electrode is tapered in shape. If the valve is a diode the movable electrode is the anode, whereas in the case of a triode or other multielectrode valve the movable electrode is the grid. The movable electrode which is mounted on a metal diaphragm forming part of the wall of the evacuated envelope of the valve may be a wedge-shaped, pyramidal or preferably a conical bar of metal, and has an extension passing through the diaphragm to the exterior of the envelope. In the embodiments described, viz. pick-ups and microphones, mechanical vibrations are applied to the end of this extension by means of a coupling from a stylus or from an acoustically-operated diaphragm respectively. The Specification contains a mathematical analysis of the considerations affecting efficiency.
Patent GB-978393-A (GB)
Title: Improvements in or relating to superconductive alloy strip
IPC: H01L39/00
Filed: 1963-07-18
Abstract: A process of making superconductive alloy strip conductors, e.g. for use in superconductive solenoids, comprises cold working to a reduction of at least 95% of an alloy composed of 13-82% by weight of zirconium (Zr) and the balance niobium (Nb) with small amounts of impurities, into strip form and heating the strip to a temperature between 600 and 1000  DEG C. for a period of time sufficient to produce precipitation of a finely dispersed second phase which raises the current carrying capacity of the strip over a wide range of field orientations and thereby minimizes the effect of the anisotrophy of the strip.  In an example an extruded billet of 25% Zr, balance Nb with small amounts of impurities, prepared by vacuum arc melting an electrode composed of electron beam melted rods of Zr and Nb, is canned in a sintered molybdenum tube and evacuated.  The billet is extruded through round dies at 1500  DEG C. to a reduction ratio of 10 : 1, the molybdenum jacket machined off and the 19 mm. round vacuum annealed at 1300  DEG C. for 30 minutes.  Flats, 12.7 mm. in thickness, are machined on the bar which is reduced by rolling in steps of 0.025/0.05 mm. per pass down to a 25% reduction in thickness and thence by steps of 0.13/0.18 mm. down to a 50% total reduction in thickness with intermediate heating at 200  DEG C. and thence by a 50% reduction in section per pass without heating, to a strip thickness of 0.05 mm. Lengths of the strip are subsequently sealed in a quartz glass tubing at a pressure of 5 X 10-5 mm. of mercury and heat treated variously at temperatures between 600 and 1000  DEG C. for one hour, the tube removed at temperature from the furnace and air cooled with the strip vacuum sealed therein.  The heat treatment period may be from 15 minutes to 4 hours long. At cryogenic temperature samples of the strips showed a marked increase in their current carrying capacities, Fig. 2 (not shown), particularly when heat treated at 600, 700, 800  DEG C. Similar results are said to be obtained using the following alloy combinations: 30% Zr, balance Nb; 73% Nb, 25% Zr and 2% Ta; 70% Nb, 25% Zr and 5% Ta, and 65% Nb, 25% Zr and 10% Ta atomic per cent.  A table of superconductive alloy systems is given.
Patent GB-482121-A (GB)
Title: Improvements in ventilating devices for rooms, buildings and other structures
IPC: F24F7/02
Filed: 1937-10-20
Abstract: 482,121. Ventilators. HOLGATE, W. R., and HOLGATE, B. Oct. 20,1937, No. 28526. [Class 137] Air is extracted from an enclosure E by a ventilator comprising a chamber A mounted on the roof and surmounted by a second and wider chamber C leaving passages c<1> between the chambers, the assembly being covered by a top D beneath which are lateral openings c<2>. Air entering the chamber C through passages c<1> and also through openings c<2> passes out through opposite openings c<2>, extracting vitiated air from the chamber A and the enclosure to an amount controlled by adjustment of a pivoted closure member B by cords b. The chamber A may be rectangular or circular in plan.
Patent GB-750078-A (GB)
Title: Improvements in operating mechanisms for document files
IPC: B42F13/24
Filed: 1954-10-04
Abstract: 750,078. Filing papers. SOENNECKEN, A. Oct. 4, 1954 [Oct. 3, 1953], No. 28541/54. Class 146(1) Operating mechanism for a lever arch type file, comprises a double-armed actuating lever pivoted to a support extending upwardly from the base plate and having an operating key at each of its ends and eccentrically arranged means connecting the lever with the spring pressed cranked part of the actuating bar such that movement of the lever in one direction operates the bar to close the file while movement in the reverse direction causes the file to open under the spring force. As shown in Fig. 4, the lever 13 with operating keys 14, 15 is pivoted at 21 to an upstanding support 11 on the base plate 10. A roller 23, eccentric to pin 21, is pivoted on a oin 22 so as to ride on the cranked part 20 of the actuating bar (not shown), the pin 22 being long enough to allow slight lateral movement of the roller 23 which is formed with, a groove 24. As shown. the file is open and pressure on key 14 will close the file. As shown in Fig. 6. the lever 13. centrally pivoted at 21, has an outstanding flanged part 26 extending round the apex 25 of the hub of the lever, the apex being eccentric with respect to the pin 21, and the flange 26 pressing against the cranked part 20. The parts are shown in the open position and pressure on key 15 closes the file. As shown, the lever is closely adjacent the support 11 and flange 26 extends outwardly. In a modification. the flange 26 lies between the lever 13 and the support 11 and a short tubular sleeve surrounds the pivot pin 21 to improve the mounting. As shown in Fig. 2. the lever 13 is centrally pivoted to the support 11 by a pin 12 shaped to allow slight lateral movement of the lever. The lever 13 is connected to a clamping strip 19 round the cranked part 20 by a double link 17 pivoted to the strip 19 at 18 and eccentricallv of the hub of the lever at 16. The link 17 may be outside the strip ends 19. or vice versa.
Patent GB-1267355-A (GB)
Title: Threaded studs and sockets
Inventor: CROXSON GORDON
IPC: F16B37/02
Filed: 1968-06-14
Abstract: 1,267,355. Threaded fasteners. ITW Ltd. 12 June, 1969 [14 June, 1968], No. 28585/68. Heading F2H. A plastics stud or bolt is provided in combination with a sheet-metal locknut or member having a hole provided with a single thread turn, the thread turn forming a friction fit with the stud or bolt. The thread turn in the locknut or member may be defined by an edge portion of the hole which may be corrugated (Figs. 6 and 7, not shown) and which is deformed to form a helical thread turn. The plastics stud or bolt may have a hexagonal or part-conical head provided with a hexagonal recess, a thread which may extend part-way along the length of the stud or bolt and a threadless portion at the end opposite the head.