baber/WOPTO huggingface dataset:
Patent GB-562015-A (GB)
Title: Improvements in brake mechanism for the landing wheels of aircraft
IPC: B64C25/48
Filed: 1942-12-04
Abstract: 562,015. Aircraft landing wheel brakes. THORP & CO., Ltd., T., THORP, H. T., and BUTTERWORTH, E. Dec. 4, 1942, No. 17287. [Class 4] Aircraft landing wheel brakes are controlled by a single main valve device of the kind in which the fluid pressure established is determined by the loading of a spring acting upon a diaphragm in opposition to the fluid pressure, additional valve devices individual to the several wheel brakes being provided and controlled independently of the main valve, for instance by the rudder bar, to vary the pressure applied to the brakes to effect steering. As shown, the main valve comprises a diaphragm d subject to the pressure of a spring g as determined by a cap h operated by a lever i and cable j. Normally, the diaphragm is raised by a spring k to unseat a valve m so that the chamber r is exhausted through a passage f, a valve o by which compressed air may be supplied to the chamber through passage a being seated at p. Depression of the diaphragm by the spring seats the valve m and opens the valve o and establishes a pressure in the chamber r dependent upon the loading of the spring g. Valve devices individual to the wheel brakes on the respective sides of the aircraft each comprise supply and exhaust valves 2, y operated by a lever 5 or 6 through a member v. The levers 5, 6 engage a rotatable cam 7 which can be positioned by the rudder bar to depress both levers so that the exhaust valves y are closed and the supply valves 2 opened, the compressed air supplied to the chamber r by operation of the lever i thus flowing to the two brakes .through passages s, band t, c respectively. By rotation of the cam, one or other of the levers may be raised as shown to close the corresponding supply valve 2 and open the exhaust valve y to release the brake on that side for steering. To prevent operation of the levers 5, 6 except when the lever i has been moved to an application position, the cam 7 is held by a spring 7a against a member h<1> secured to the cap h so that it is clear of the levers except when the cap is depressed.
Patent GB-700574-A (GB)
Title: Improvements in or relating to brake operating mechanism for vehicles
Inventor: HAIGH DONALD
IPC: B60T11/10
Filed: 1951-07-23
Abstract: 700,574. Vehicle brake operating mechanism. BRITISH TRANSPORT COMMISSION, July 23, 1952 [July 23, 1951], No. 17418/51. Class 103(1) [Also in Group XXXII] In a brake operating mechanism for a vehicle having each rear wheel mounted on a wheel carrier extending longitudinally of the vehicle to co-operate with suspension springs 17 located in front of and behind the wheels, the wheel carrier includes tubular members 14, 15 extending forwardly and rearwardly from a central member 10 supporting the wheel bearings, a rod 25, also-operable by mechanical means 36, 38, 32 being slidably mounted in one of the said tubular members 15, co-operating with an arm 24 attached to the spindle 22 of a brake shoe operating cam, and with a piston 28 operable by liquid pressure in a cylinder 26 also housed in said tubular member 15. The wheel carrier comprises a central member 10 in the form of a casting stiffened by flanges 11 and formed with sockets 12 and 13 to receive uoper and lower longitudinally extending tubes 14 and 15 which support, at their ends remote from central member 10, a bracket 16 which provides an abutment for a coil spring 17 through which the weight of the vehicle is transmitted to the wheel carrier. The brake shoes are operated to engage the drum of the wheel by an automatically adjustable cam (not shown) on a spindle 22 operated by an arm 24. The arm 24 is pivotally connected to a push rod 25 which is urged by spring 43 to extend through the lower tube 15 into cylinder 26 and is provided with a rounded end to engage the socket of a piston 28 which is urged to the outer end of the cylinder by a spring 44. A thrust rod 32 passes through the outer end of the cylinder 26 and is provided at one end with a head 33 which is supported by the shoulder 45. The other end of the rod 32 is pivotally connected to lever 36, 38. The brake cam may be operated by liquid pressure which may be introduced into working chamber 46 through passages 49 from a liquid pressure master cylinder or the like. Alternatively, the cam may be operated by mechanical means; the lever 36, 38 being rocked about its pivotal mounting 37 by a rod or cable to operate the rod 32 which in turn moves the piston 28 and rod 25 to operate the arm 24 and brake cam. The operating mechanism is protected by flexible dust-excluding sleeves 51, 52. The mechanism may therefore be operated as described so that the mechanical operation does not affect the liquid pressure means and vice-versa.
Patent GB-779420-A (GB)
Title: Improvements in or relating to screw and nut transmission devices
IPC: F16H25/20
Filed: 1955-06-20
Abstract: 779,420. Screw-and-nut actuators. BRONZAVIA SOC. ANON. June 20, 1955 [March 9, 1955], No. 17692/55. Class 78 (3). [Also in Group XXIV] In a motor-driven screwjack having a torque limiter 16 inserted between the motor 8 and the screw 2, the screw 2 is hollow and the motor 8 is connected through reduction gearing 9 ... 14 to a torsion-rod 15 passing through the screw and splined thereto at its far end. The torque limiter is inserted between gears 10 and 11 and comprises spring-loaded friction discs. The nut head 4 is integral with the slidable and non- rotatable barrel 5 of the jack and limit switches 6, 7 are actuated by a boss 5a on the barrel. Co-operating dog-clutch teeth 17, 18 and 17a, 18a on each end of the screw and nut are provided. If for any reason (e.g. failure of a limit switch) the rotation of screw 2 is not stopped at the end of a stroke the dog-clutch teeth mesh so that torque is transmitted to the barrel 5 (thus avoiding excessive load on the screw flanks) and the torsion rod 15 is stressed until the friction discs 16 slip. If the motor is then reversed the potential energy in the torsion-rod augments the starting torque and the dog-clutch teeth are immediately separated.
Patent GB-967103-A (GB)
Title: An improved probe for use with ultrasonic testing apparatus
Inventor: JARVIS JOHN ALBERT FRANCIS
IPC: G01N29/24
Filed: 1962-05-09
Abstract: 967,103. Wave couplings; piezo-electric instruments. MATERIALS & METHODS Ltd. May 6, 1963 [May 9, 1962], No. 17795/62. Heading H4J. An ultrasonic probe comprises a first piezoelectric crystal 3 spaced from and surrounded by a second piezo-electrio crystal 3B, facing blocks 1 and 2 for the crystals, one block within the other, a damping sleeve 2A between the blocks, and a holder 4 for the crystals. Damping screws 4A, 4B and 4C engage the crystals, and the opposing surfaces 2B of the facing blocks may be silvered.
Patent GB-1404596-A (GB)
Title: Ingestible topical and other compositions containing physiolog cal cooling agents
IPC: A23L27/20
Filed: 1972-04-18
Abstract: 1404596 Flavourings; modified cigarette and pipe filters WILKINSON SWORD Ltd 5 April 1973 [18 April 1972] 17913/72 Headings A2B and A2C [Also in Divisions A5 and C6] Pharmaceutical, cosmetic, toilet, edible, potable and smokable compositions comprise, as an ingredient having a physiological cooling effect on the skin and mucous membranes, a compound of the formula:  wherein: R, is H or C 1-5  alkyl; R 2  and R 3  are each C 2-5  alkyl and: i) when R 1  is H at least one of R, and R 3  is a branched chain group; ii) when R, is methyl and R 2  or R 3  is isobutyl, the other is selected from: ethyl, n-propyl, isopropyl, n-butyl, sec-butyl, tert-butyl or amyl and, iii) R 1 , R 2  and R 3  provide a total of from 7 to 10 carbon atoms. The compounds may be used in any composition useful in the abovementioned fields where a cooling sensation is desired. Specific examples relate inter alia to a soft sweet, a boiled sweet, and a cigarette tobacco (impregnated with 2, 4-dimethyl-3- ethyl-3 pentanol). Reference is also made to pipe and cigarette filters and "filter tips" impregnated with the active compounds, e.g. by soaking in an alcoholic solution thereof and drying.
Patent GB-578399-A (GB)
Title: An improved travel case of the hanging wardrobe type
IPC: A45C3/00
Filed: 1944-09-20
Abstract: 578,399. Wardrobe cases. GARNETT, Ltd., A. J., GARNETT, A. T., and LANGFORD, E. E. Sept. 20, 1944, No. 17932. [Class 133] [Also in Group XIV] In a foldable, flexible case of the hanging wardrobe type a saddle member 7 extends across the back of the case 1 where it folds in two and is formed at the ends with triangular sections 8 bent at right angles and with inward projections 9 secured to the inner face on the fold. An opening in the latter is closed by a flap and secured by sliding clasp fasteners &c. Handles 14 and straps 13 having pads 16 with metal studs securable by buckles 15 when the case is folded are provided at each side of the saddle. Pockets 17 may be provided each side of the saddle and other packets inside. A metal loop inside for hangers and a ring 18 for hanging the case are also provided. Walls 2 may be stiffened by corner pieces 19 and elsewhere except between lines 20. As shown the saddle member is a light metal stamping. In a modification, Fig. 4 (not shown), the saddle consists of a frame formed of steel rod with a leather &c. covering extending across the top of the case.
Patent GB-778098-A (GB)
Title: Dialkyl aluminium hydrides and their production
IPC: C07F5/06
Filed: 1955-06-21
Abstract: The invention comprises dialkyl aluminium hydrides of formula R2AlH where R is an alkyl radical, and in particular those dialkyl aluminium hydrides in which the alkyl group is a primary branched alkyl radical.  They are prepared by heating aluminium trialkyls at a temperature of from 50 DEG  to 200 DEG  C. thereby splitting off one molecule of olefin.  In the event of the decomposition temperature of the dialkyl aluminium hydride being lower than the cracking temperature of the aluminium trialkyl, metallic catalysts such as finely divided or spongy titanium, silver, nickel, platinum and cobalt may be used.  The metallic catalyst may also be supported on aluminium.  Normal primary unbranched aluminium trialkyls may also be cracked using a catalyst.  A layer of molten alkali metal aluminium tetra alkyl may be introduced below the aluminium trialkyl thus extending the life of the catalyst.  In an example potassium aluminium tetra ethyl is mixed with a silver sponge and triethyl aluminium added. The mixture is heated to 180 DEG  C. and pressure reduced until the liquid boils.  After approximately 50 per cent conversion the mixture of aluminium trialkyl and diethyl aluminium hydride is poured off and separated by vacuum distillation. Specification 774,516 is referred to.  Potassium aluminium tetra ethyl may be prepared by heating aluminium triethyl and potassium at 120 DEG  C.
Patent GB-177745-A (GB)
Title: Improvements in safety straps for children
IPC: A47D13/08
Filed: 1921-07-02
Abstract: 177,745. Smith, W. H., Haden, G. H., and Pennell, J. A. July 2, 1921. Straps and bands.-In safety straps for children having a belt 1 and two shoulder straps 3 crossing at one side only, the straps 3 are detachably secured to the belt by attachments 5 which may be of leather and provided with two holes 6 for engagement by studs 7. The straps 3 may be elastic and looped at 9 for slidable interengagement. For use in a perambulator or the like, straps 10 are attached by spring hooks 13 engaging an attachment 11 on the strap and a D fitting 14 on the belt.
Patent GB-748205-A (GB)
Title: Improvements in means for effecting the dumping of railway cars or trucks
IPC: B61D9/02
Filed: 1954-06-18
Abstract: 748,205. Tipping railway vehicles. SOC. ANON. G. DUMONT & FRERES. June 18, 1954 [July 1, 1953], No. 18044/54. Class 103 (4). Means for dumping railway cars or trucks eomprises the association with the vehicle of a hydraulic dumping device working in a closed cycle or power line, the device being actuated by means of a fluid .under pressure, e.g. compressed air or steam, obtained from a source which may either accompany the train or be equipment of the vehicle or of the unloading station. As shown, a vessel 1 containing compressed air is connected to a pipe 2 which is connected by a pipe 22 to one end of a cylinder 20 containing a piston 19. The piston-rod 13 operates in a cylinder 12 which contains liquid and is connected by a pipe 10 to a tipping jack 9. Compressed air supplied to the cylinder 20 moves the piston 19 and the piston-rod 13 whereby the jack is operated to dump the vehicle. On reverse movement of the piston 19 the jack returns to its normal position. To compensate for loss of liquid a tank 14 is provided which is connected by a pipe 17 to the cylinder 12. The tank may also be connected by a pipe 29 to the pipe 2. The pipe 22 may have a branch pipe 25 provided with a two-way valve 26 which has a connection 28 to a valve 23 on the pipe 22 so that compressed air can be supplied to either side of the piston 19 in the cylinder 20 while the other side is open to atmosphere. The jack 9 may be provided with means including a hand pump 35 for actuating it manually on failure of the pneumatic or hydraulic drive.
Patent GB-204681-A (GB)
Title: Improvements in or relating to horn-plates for railway rolling stock
IPC: B61F5/32
Filed: 1923-07-12
Abstract: 204,681. Lester, R. Sept. 28, 1922, [Convention date]. Axle bearing guiding arrangements. - A horn plate for railway rolling stock axle-bearings is provided with a recess in each jaw in which a wear plate is inserted so as to engage the jaw frictionally. Each jaw 8 of the horn plate 7 is recessed at 10 to take a wear plate 12, the plate being held in position by the friction of the dovetail joint 11. The plate 12 in each jaw may be perforated in the centre or may comprise two plates let into the jaw from opposite sides. The plates 12 may protrude into the gap between the jaws 8.
Patent GB-477457-A (GB)
Title: Improvements in stuffing boxes, especially for well drills
IPC: E21B33/08
Filed: 1936-06-30
Abstract: 477,457. Wells. OTIS, H. C. June 30, 1936, No. 18156. Convention date, July 22, 1935. [Class 85] [Also in Group XXVI] A stuffing-box for a well drill stem comprises a rotatable member 16, carrying packing 22 engaging the flat-sided drill stem, and tiltably mounted in a box 10 carrying packing 31. A flange 25 on the rotatable member is supported between a resiliently supported bearing ring 21 and a ball bearing 34, having an adjustable spherical seating 38 whereby the member 16 is permitted limited universal movement to compensate for misalignment of the drill connections. Lubricant is supplied to the bearings through a passage 44. A bushing 20 in the member 16 is grooved at 50 for access of well pumping fluid to dissipate heat generated by friction between the member 16 and packing 31. In a modification, Fig. 7, the rotary member 55 is supported on an arcuate flange 52 formed on a stationary sleeve 51. The upper arcuate bearing portion may be replaced by a flat resiliently mounted member 56, Fig. 8.
Patent GB-385611-A (GB)
Title: Improvements in or relating to calcium sulphate plaster mixes and to methods of applying the same
IPC: C04B40/06
Filed: 1931-06-23
Abstract: A process for the production of porous plasters of the accelerated anhydrite type comprises the use of a gas producing agent selected so that one, or more, of the reactants or resultants in the gas formation functions as an accelerator for the hydration of anhydrite. Examples of such agents are calcium carbonate, water-aluminium sulphate, and metallic zinc-water-sulphuric acid.  They are used in amount up to 4 per cent.  No free acid should be left as this interferes with the setting.  Additional neutral or alkaline accelerators, e.g. potassium sulphate, may be added.  The solid materials may be either mixed dry and gauged in the usual way or the gas producing agent or the additional accelerator or both added to the gauging water.  Greater strength when set is obtained by the addition of up to 20 per cent of calcium sulphate hemi-hydrate either to the dry mix, or gauged separately and added to the main mix after gauging.  The rate of evolution of gas may be controlled, (1) by the addition of a small amount of glue, gelatine, or bentonite; a delay of 15 minutes in the evolution of gas may be so obtained; (2) by the use of gas producing agents in the form of compact particles, e.g. by the use of a ground mineral carbonate; or (3) by the use of ice cold water for gauging.  Raw material for this invention comprises natural anhydrite having a carbonate content equivalent to 1 per cent by weight of carbon dioxide, to which is added 1 per cent of powdered hydrated aluminium sulphate.  On mixing and setting, a volume increase of 50-75 per cent is obtained.  If 2 per cent of aluminium sulphate is used an increase of 100 per cent and if 3 per cent an increase of 200-300 per cent is obtained.  A larger amount of water is necessary in expanded plasters than in non-expanding plasters. Fillers such as sand, pumice, cork, clinker, brick dust, or fibrous material may be added.  The material may be applied by trowelling or in the case of a mix of slow expansion, by spraying.  In an example, 12 parts of anhydrite are mixed with 1 part of plaster of Paris, 1/2 part of aluminium sulphate, 1/5 part of potassium sulphate, 1/10 part of finely divided chalk, and 4 parts of water.  In 15 minutes expansion of 2-2 1/2 times the original volume takes place and the mixture hardens.  Specifications 236,695, 317,672, 337,926, [all in Class 22, Cements &c.], and 381,155 are referred to.
Patent GB-887761-A (GB)
Title: Paint roller
IPC: B05C17/02
Filed: 1960-05-24
Abstract: <PICT:0887761/III/1> A paint roller comprises a shaft, rotatable support means associated with the shaft for enabling a tubular applicator to be slid over the support means and frictionally maintained thereon, and actuating means for releasing the frictional grip whereupon the applicator is free to drop off the shaft and support means. As shown, the shaft or spindle 18 carries a rotatable end cap 26 maintained thereon by a screw 34.  Maintained at the other end of the spindle 18 by a spacer 50 is a cam sleeve 36 having bevelled portions 46 engaging the inner surfaces of the ends of fingers 58 extending from the portion 54 of a hollow cylindrical support 52 on which the tubular applicator 20 is slid, and gripped by the fingers 58.  The support 52 is slidable axially on the cam sleeve 36 against a spring 72, when an actuating lever 80, pivoted at 84, is operated.  A circular spring 62 then urges the fingers 58 together, releasing their grip on the applicator 20.
Patent GB-923193-A (GB)
Title: New crepe fabrics and process for their production
IPC: D03D15/567
Filed: 1961-05-18
Abstract: 923,193. Producing crepe fabric. SOC. RHODIACETA. May 18, 1961 [May 20, 1960], No. 18232/61. Class 42 (2). A process for the production of a crepe fabric comprises, subjecting to the shrinking action of a hot aqueous liquid or vapour, a fabric containing yarns of partially acetalized polyvinyl alcohol which has been given a crepe twist of at least 1000 turns per metre and which, in their untwisted state, are not shrunk by more than 5% of their length by water at 100 C. The fabric may contain yarns of other materials, e.g. silk, wool, cotton, regenerated cellulose.
Patent GB-1467085-A (GB)
Title: Flexible pipeline for transporting liquid or gaseous refrige rated media
IPC: F16L53/00
Filed: 1975-05-02
Abstract: 1467085 Flexible pipe-lines KABEL-UND METALLWERKE GUTEHOFFNUNGSHUTTE AG 2 May 1975 [7 Aug 1974] 18464/75 Heading F2P A flexible pipe-line for transporting liquid or gaseous refrigerated media comprises two coaxial corrugated metal tubes 1 and 2, with a cellular synthetic resin material 3 as insulation between the tubes wherein, between the inner metal tube and the cellular synthetic resin material there is a continuous metal sheath 9 which is spaced from the inner metal tube by one or more layers of a network or braid, and wherein the passage 12 running between the inner metal tube and the metal sheath is filled with a medium which is gaseous at room temperature and liquid at lower temperatures, e.g. carbon dioxide. As shown, the layers of a network or a braid consist of a spiral metal band 5 and a network formed by layers 6, 7 and 8 made of a thermoplastics synthetic resin. There is a jacket 4 of a thermoplastics synthetic resin material. The metal sheath 9 is formed from a metal band that is bent into a slot tube around layer 8, the edges of the band entered radially outwardly and are welded together by arc welding. The resulting formation is then bent down on to the cylindrical portion. The outer tube is then formed from a metal band that is bent into a slit tube around the previously formed structure, a foam-forming synthetic resin material is introduced into the open slit tube prior to the edges being welded together, the outer tube thus formed is corrugated.
Patent GB-596113-A (GB)
Title: Flexible polymeric products and methods of making same
IPC: C08F257/02
Filed: 1945-07-19
Abstract: Mixed polymeric products are obtained by polymerizing an aqueous emulsion of a monovinyl aromatic compound at a temperature above 50 DEG  C. and, when it contains less than 10 per cent by weight of monomer, adding and polymerizing a conjugated diolefine at a temperature above 50 DEG  C.  Suitable vinyl aromatic compounds are styrene and alkyl and halogen-substituted styrenes. Specified diolefines are butadiene-1,3, isoprene, 2,3-dimethyl butadiene and 2-ethyl butadiene.  The proportions may vary from 0.5 to 17 mols. of diolefine per mol. of vinyl aromatic compound, the higher the proportion of diolefine the more flexible the product.  The initial emulsion may be neutral, acidic or alkaline and may include emulsifying agents such as the sulphuric acid esters of lauryl, myristic or other higher aliphatic alcohols; the alkali salts of such esters, or alkali metal sulphonates of aliphatic or alkyl aromatic hydrocarbons.  Catalysts such as peroxides, perborates or persulphates may also be present.  After polymerization of the vinyl aromatic compound, the diolefine is added either immediately or after some time and polymerization is completed as before in a closed container.  Antioxidants such as phenyl - beta - naphthylamine, di - (p - hydroxy - phenyl) cyclohexane, p,p1-dimethoxydiphenylamine and a condensation product of aniline and butyraldehyde may be added, before or during but preferably after polymerization.  The product is coagulated by freezing the colloidal solution or by coagulating agents such as dilute hydrochloric or sulphuric acid and aqueous solutions of sodium chloride, sodium sulphate and calcium chloride. The product may then be moulded or extruded and is useful as electrical insulating material.