baber/WOPTO huggingface dataset:
Patent GB-436887-A (GB)
Title: Improvements in or relating to potentiometers
IPC: G01R17/00
Filed: 1934-04-20
Abstract: 436,887. Current meters; compensating instruments for temperature errors. CLARK, W. J., BOSANQUET, C. H., BELL, R. A., and MATTHEWS, R., Norton Hall, The Green, Norton-on-Tees, and IMPERIAL CHEMICAL INDUSTRIES, Ltd., Millbank, London. April 20, 1934, No. 12008. [Class 37] Apparatus for measuring small potential differences, for example pH values, comprises a Wheatstone bridge circuit including at least one triode valve, the bridge circuit being supplied from an alternating-current source through a transformer, rectifier, condenser and at least one current regulating device. In one arrangement, Fig. 1, the bridge V1, V2, R3, R4 is fed on the high-tension side through rectifiers and smoothing circuits X and barretter lamp B1, the constant voltage across resistance R8 being fed to one bridge diagonal. The lowtension feed is by way of rectiners Y, Z. The unknown quantity is applied at C and measured on meter M2 which may be a string galvanometer. One of the rectifying circuits Y, Z may be omitted and instead of two connections to the high-tension source one only may be employed. The current-voltage curve of the barretter may be improved by shunting the lamp with a manganin resistance. Fig. 6 shows such a circuit wherein the compensated barretter B is connected on the bridge side of the rectifiers. Slight variations in applied voltages and variations with temperature are compensated by a resistance H of manganin and one J of copper and a cadmium cell K in the grid circuit. Indirectly heated valves may be employed.
Patent GB-1140742-A (GB)
Title: Improvements in or relating to valve assemblies
Inventor: YARDLEY ALFRED
IPC: F16K51/00
Filed: 1966-03-18
Abstract: 1,140,742. Valves. GIRLING Ltd. 17 March, 1967 [18 March, 1966], No. 12013/66. Heading F2V. A valve assembly comprises a fixed body part and a movable valve member and a body of cellular or fibrous material which is resiliently deformable over at least part of the operating movement of the valve member. The body, which may be polyurethane foam and can be compressed sufficiently to allow a stop-piece 6 to engage the end of the body 1 opposite a seat on a cap 2, reduces noise from the valve in operation. The cap and body are of plastic construction and are welded together while the stop-piece 6 is press fitted to a poppet valve provided with a guide spigot 4 and a rubber seal 7. Three bayonet lugs 11 secure the body to a casing 13. The assembly may be used as a non- return valve for servo-assisted vacuum brake operation of a vehicle.
Patent GB-220050-A (GB)
Title: Improvements in locks
IPC: E05C1/10
Filed: 1923-05-05
Abstract: 220,050. Olsen, N. P. May 5, 1923. Locking sliding latches; lock mechanism, spring-tumbler type. - A key-operated plate spring 19, secured to the spring-pressed latch bolt 3 and carrying a pin 22 which engages a hole 23 in a bushing 5 carried by the plate 1 to secure the latch in the shot position, is provided with a recessed enlargement 20 with which the bit 14 of the key 13 engages to release the spring 19. The key 13, which is passed through slots in the right-angled extension 2 of the plate 1 and in both sides of the casing 7, as well as through the latch, is first rotated to release the spring 19 and then moved bodily downwardly to withdraw the latch against its spring 11.
Patent GB-1041093-A (GB)
Title: Improvements in or relating to vehicle transmissions
Inventor: HAYWARD WILLIAM JOSEPH
IPC: F16H47/08
Filed: 1962-03-29
Abstract: 1,041,093. Driving gear for I.C. engine superchargers. PERKINS (PETERBOROUGH) Ltd. March 28, 1963, No. 12125/62. Heading FIB. [Also in Division F2] A transmission unit combined with an I.C. engine and a supercharger 15, includes input and output shafts 11, 12, a hydrokinetic torque converter having a driven housing 31, a differential gear 14 having a planet carrier 27 driven by the housing, a sun wheel 25 driving the supercharger and an annulus 26 driving the torque converter pump element 19. The torque convertor 13 includes a turbine 18 splined to output shaft 12, the pump element 19 connected to annulus 26 and reaction members 20 connected through overrunning clutches 21 to a stationary tubular shaft 22. The epicyclic differential gear comprises sun wheel 25, freely rotatable on shaft 22, annulus 26 and planet wheels 28 mounted on carrier 27. Housing 31 forms part of flywheel 32 connected to input shaft 11. A driving gear 33 secured to sun wheel 25 drives supercharger 15 through gears 34, 35 and shaft 36. The annulus 26 may be connected to housing 31, the planet carrier 27 to the pump element 19 and the sun wheel 25 to the supercharger 15. Operation At low engine speeds the torque converter pump 19 and supercharger 15 rotate comparatively slowly but with acceleration under load the differential gear divides the torque so as to speed up the supercharger relation to the speed of the output shaft thus increasing engine torque. The output shaft then increases speed until torque balance between the engine, torque convertor and supercharger is achieved. Hydraulic circuit Oil under pressure from duct 38 passes through channel 39, duct 40, bearing 41, and apertures 42, 43, into the torque convertor housing and thence through gap 49, bearing 51, channel 52 to a conduit 53 leading to a reservoir which may be in lower housing portion 54. A branch 56 communicates with holes 57 into the differential gear casing and thence through a restricted outlet 59. Pressure in the differential gear casing may be relieved above a certain speed by means of a valve member 58 consisting of a circular ring divided into three spring-loaded arcuate sections which rotate with the sun wheel so that centrifugal force causes the sections to fly out and press against inner edge 60. In a modification to lock the torque converter, annulus 26 has a portion 62 forming a clutch facing, pump element 19 is formed with an annular cylinder 63 containing a piston 64 operable by hydraulic pressure under the control of a valve 65. Turbine 18 has a coupling member 66 splined to a clutch member 68. In operation valve 65 is normally spring-closed, oil being exhausted through passages 71, 71a and hole 72, the clutch being disengaged. At a predetermined engine speed valve 65 opens under centrifugal force to allow pressurized oil to flow through passages 73, 71 to engage the clutch. In a further modification sealing ring 75 may be provided to prevent oil entering space 74 which is normally drained centrifugally through holes 78.
Patent GB-513881-A (GB)
Title: An appliance for the hygienic protection of telephones which incorporate a combined mouthpiece and earpiece
IPC: H04M1/17
Filed: 1938-04-22
Abstract: 513,881. Sanitary and hygienic devices. RICHARDSON. L. F., and FAULKNER, V. J. April 22, 1938, No. 12146. [Class 40 (iv)] A disinfecting device for a telephone instrument 11 of the hand-microphone type comprises two absorbent or antiseptic pads which are displaceably mounted so that one of them engages with the mouthpiece 10 and the other with the earpiece 9 independently of the manner in which the instrument is replaced on its stand. The pads 1 are mounted in holders 2. which are rotatably mounted on extensions of a collar 6 attached to the neck of the desk set 7 and are biased upwardly by light springs, the upward movement of the arms being limited by lugs 13. Each pad 1 is provided with a disc 4 which snaps over an apertured projection formed on the base of the holder 2. In a modification, Fig. 4 (not shown), the pads and holders are carried by the end portions of a bent wire having its central portion attached to the base of the desk-set.
Patent GB-1241124-A (GB)
Title: Shaving unit for electric shaver
IPC: B26B19/38
Filed: 1969-03-07
Abstract: 1,241,124. Electric shavers. MISTRELETTRICA S.R.L. 7 March, 1969 [8 March, 1968] No. 12202/69. Heading B4B. A shaving unit for an electric shaver comprises a comb 101, having regions of rectangular perforations A-C, spaced in staggered parallel rows at about 80 degrees to the direction of reciprocation of three respectively co-operable reciprocable shaving elements 108 (109), Figs. 7, 9-13 (not shown), each of part-circular crosssection. Holes 103 at the edges of the comb 101 are engaged by comb retainers 104 of a comb holder which is inserted into a frame 105, rods 106 causing the comb 101 to take up a con-- tinuously curved configuration over the elements 108 (109). The central element 108 is preferably formed from spring steel by punching interblade slots 112 and holes- (113), for reducing weight and allowing escape of cut hair, prior to die forming and heat treatment. A noisedampening nylon insert may be incorporated in connecting the element 108 to drive means (not shown). The outer elements (109) are formed with axially asymetrically disposed blades, Figs. 11-13 (not shown).
Patent GB-591645-A (GB)
Title: Improvements in stone crushers
IPC: B02C13/20
Filed: 1945-05-15
Abstract: 591,645. Stone crushers. KESSLER, L. H. May 15, 1945, No. 12207. [Class 59] A stone crusher comprises a pair of parallel, oppositely rotating, impact rotors arranged in the same horizontal plane so that the adjacent peripheral points move upwardly to throw the material against stationary impact bars arranged as a screening grate at the outer and upper peripheral zones of both rotors. A housing with an intake 15 and a discharge outlet 18 is mounted on a pair of horizontal angle bars 10. Two rotors 19, on drive shafts 20 mounted in bearings on the supporting bars 10, rotate in opposite directions so that stone dropping through the intake 15 is hit by the inner and upwardly moving beater of the blades 22 and thrown up against horizontal bars 23 and 24 where, after being pulverized, it drops down and out through the opening 18. The rotor blades, wedged in grooves 39 on the rotor, are replaceable through closable openings 43 in the casing. The impact bars 23, disposed below and at opposite sides of the feed opening, are replaceable through openings closed by cover-plates 28. The impact bars 24 are disposed in two substantially upright rows on opposite sides of the housing, each row being mounted as a unit on side arms 29 pivoted at 30 and adjusted to or from the rotors by means of links 31 with adjusting nuts 36 and springs 35.
Patent GB-212160-A (GB)
Title: Improvements in sole structure for boots and shoes
IPC: A43B23/22
Filed: 1923-05-07
Abstract: 212,160. Ross, B. May 7, 1923. Foot-arch supports.-A sole structure for shoes includes a shank piece designed to support the arch of the foot comprising two members 20, 21 secured by their outer ends respectively to the heel and the sole portions of a flexible outer sole 10. The member 20 has two elongated notches 28, 29 on which slide hooked lugs 32. 33 formed on the inner end of the member 21, which is curved to bridge the shank of the shoe. An inner flexible member 14 of the shape and size of the sole 10 may be provided to cover the shank piece, and a resilient cushion 15 is arranged over the heel and may be covered by a sock lining 34.
Patent GB-557475-A (GB)
Title: Improved edison-screw lamp extractor and replacer
IPC: H01K3/32
Filed: 1942-08-31
Abstract: 557,475. Removing and replacing lamps. LEIGH, E., and ROTHERAM, E. Aug. 31, 1942, No. 12229. [Class 61 (ii)] A lamp extractor and remover of general construction similar to that of Specification 547,369 comprises a triangular base with jaw members A pivoted to the corners thereof and normally held open by springs and adapted to be closed by a tension spring and operating wire passingdownthrough the pole or tube on which the base is mounted, the jaw members being provided with padded gripping jaws D, E for use on vapour lamps and one of them with an adjustable and removable padded ring C for use on ordinary lamps, all three jaw members having slots B near the top adapted to engage the slotted corners S of a plate H having a central upstanding pillar with a pointed toothed top for engaging and removing a broken lamp cap.
Patent GB-1189045-A (GB)
Title: Piano Plate of Low Loss Factor
Inventor: TAKAMURA MASAYUKI
IPC: G10C3/04
Filed: 1968-03-13
Abstract: 1,189,045. Acoustic measurement of physical properties. NIPPON GAKKI SEIZO K.K. 13 March, 1968 [15 June, 1967], No. 12281/68. Heading H4D. [Also in Divisions C7 and G5] To determine the loss factor (Q<SP>-1</SP>) of a cast ferrous metal, a sample 1 is suspended horizontally by wires 2 equidistant from its ends, and driven to undergo forced vibration at its natural frequency by an electromagnetic coil 3. The power supply is then cut off, and the natural damping of the vibration amplitude is measured in a vacuum of at least 10-<SP>3</SP> mm. Hg at room temperature by means of the detection coil 4. The loss factor is given by the equation: where A 1  is the amplitude at the start of measurement and A 2  the amplitude of the nth wave thereafter. The metal with a loss factor of (1À5 - 0À2) Î 10<SP>-3</SP> is used in the manufacture of piano frames.
Patent GB-623737-A (GB)
Title: Improvements in spelk baskets
IPC: A45C3/04
Filed: 1946-04-24
Abstract: 623,737. Seat frames. COATES, F. W. April 24, 1946, Nos. 12320 and 33351. [Class 52 (ii)] [Also in Group XVII] A basketware chair consists of a metal frame 70 incorporating parallel side frame elements 71, 72 with parallel subsidiary metal frame elements 73 extending between the side frame elements 71, 72 and welded thereto at their ends. Wicker or raddling 74 is woven on said subsidiary frame elements to constitute a seat and back. The areas of basketware are relatively flat and may be painted or decorated. Specification 574,850, [Group XVII], is referred to.
Patent GB-383549-A (GB)
Title: Improvements in devices for the automatic adjustment of rods
IPC: B61H15/00
Filed: 1932-04-29
Abstract: 383,549. Adjustment of rods. SOC. GENERALE ISOTHERMOS, 6, Rue de Londres, Paris. April 29, 1932, No. 12326. Convention date, May 1, 1931. [Class 103 (i).] A device for the automatic adjustment of the length of a rod, for example a brake rod, comprises two coaxial sections 1, 2 sliding one within another each having coaxial surfaces, for example conical or cylindrical, between which are balls or rollers adapted to be locked on relative axial displacement of the sections. A pull on the tube 2 is transmitted to the rod 1 by a conical surface 5 and balls 7 bearing on the rod. On wear occurring a tube 15 enclosing the device engages a stop 22, a spring 17 between the tubes 2, 15 is compressed and a tube 19 rigid with the tube 15 and having pockets for balls 8, 13 displaces the balls 8 from locking position. On brake release the rod 1 being locked by balls 13 and cup 14 to the tube 15 which is held against the stop 22 by the spring 17, the tube 2 moves over the rod 1 to shorten the brake rod until the tubes 2, 15 have moved relatively to release the balls 8 into locking position. The balls 7, 8, 13 are held in looking position by springs 9, 12. The rod may be manually lengthened or shortened by turning the tube 19 on the screw thread 23 to space the balls 7 or 13 from the corresponding cups. The stop 22 may be arranged to move with the brake mechanism to an extent differing from the extent of movement of the tube 15. The invention is also shown applied to a rod working in compression. In another arrangement in which adjustment is effected as in Fig. 1 the tube 15 permanently engages the stop 22 and the cup 14 is not fixed to the tube 15 but engages a flange on the tube 19 by means of a spring. Adjustment takes place when shoulders on the tube 15 and the cup 14 engage. This arrangement also allows of lengthening of the rod, for instance on excessive adjustment when the spring 17 is allowed to expand further and causes movement of the tube 19 to disengage balls 7, 13. In Fig. 6 the tractive effort on the tube 2 is transmitted to the rod 1 by balls 7 and a spring 27 bearing on the cup 5. When the spring 27 is compressed before engagement of the stop 22 the balls 7 are unlocked by the tube 19 and the rod is lengthened. If the engagement of the tube 15 with the stop 22 and the compression of the spring 27 are simultaneous the spring 27 is compressed until the cup 5 engages a shoulder 28 and the balls 8 are unlocked by the tube 19 and the balls 13 reach the cup 14 and the device is in position for shortening effected as in Fig. 1. In a further modification the cup 14 is held in engagement with the tube 15 by a spring and a limited adjustment only is allowed as a shoulder on the tube 2 engages a shoulder on the cup 14 when the maximum adjustment allowed has been attained. A simplified modification is shown of the arrangement of Fig. 1 in which a single ring of balls takes the place of the balls 8, 13. The invention is shown applied to an internal expanding brake for adjusting for wear of the brake lining.
Patent GB-585605-A (GB)
Title: Improvements in display stands
IPC: A47F5/06
Filed: 1944-06-29
Abstract: 585,605. Adjustable stands. HARRIS & SHELDON, Ltd., and WOOTTON, E. H. June 29, 1944, No. 12364. [Class 52 (iii)] [Also in Group XXV] In a vertically adjustable display stand an inner telescopic member 3 carries a resilient element 5, preferably of rubber, which is axially compressed by a spring 10 mounted on a central rod 7 and acting on an abutment on the rod to compress the element 5 between the end of the member 3 and an adjustable nut 9 on the rod. The resulting radial expansion of the element 5 against the outer telescopic member 1 holds the parts in adjusted position and pressure on the head 16 of the rod, either directly or by means of a sliding cam, enables the element 5 to contract and adjustment to be effected.
Patent GB-495029-A (GB)
Title: An improved adjustable stay for casement windows and like service
IPC: E05C17/28
Filed: 1937-05-03
Abstract: 495,029. Stays for windows &c. HOPKINS, C. Y., and CARTLAND & SON, Ltd., J. May 3, 1937, No. 12527. [Class 65 (i)] A window &c. stay is pivoted at its outer end 3 in a hole in a metal block 1 slidable on a fixed guide 5 on the window and provided with a screw clamp 2 engaging a plate 4 arranged between the block and the guide. A peg c<1> limits the movement of the clamp 2.
Patent GB-1209033-A (GB)
Title: Improvements in and relating to solid neutron moderating core structures for nuclear reactors
Inventor: PETTINGER DONALD STANLEY
IPC: G21C5/16
Filed: 1967-03-17
Abstract: 1,209,033. Moderator structures. NUCLEAR POWER GROUP Ltd. 26 Feb., 1968 [17 March, 1967], No. 12537/67. Heading G6C. In a nuclear reactor graphite block moderator, the block lattice is stabilized against dimension changes, caused by temperature changes and irradiation, by curving the block end faces thereby causing the adjacent blocks to lean against and support each other. The gravitational force W, Fig. 5, acts through the block centre of gravity to produce a turning moment about the line of contact R, at the block curved lower surface. Each block is urged against the other. Separation of the blocks by lateral thrust forces is prevented by an external constraint round the core. The blocks 2 and 4, Fig. 4, lean upon the interstitial blocks I, secured by the keys K. The load is transmitted between contacting curved surfaces along the lines 5.
Patent GB-1424356-A (GB)
Title: Detergent composition
IPC: C11D3/36
Filed: 1972-03-17
Abstract: 1424356 Detergent composition UNILEVER Ltd 15 March 1973 [17 March 1972] 12614/72 Heading C5D A fabric washing composition comprises (a) from 5 to 35% by weight of an organic detergent, (b) a detergency builder of which at least 10% by weight is a water-soluble inorganic orthophosphate and/or pyrophosphate, and (c) from 0À5 to 2% by weight of ethane-1-hydroxy- 1, 1-diphosphonic acid, or a water-soluble salt thereof. Detergent (a) may be anionic, non- ionic, amphoteric or zwitterionic. Builder (b) may comprise 20 to 70% by weight of the composition. The orthophosphate or pyrophosphate may have been derived from the breakdown of sodium tripolyphosphate which has been spray-dried. The washing composition may be in the form of powders, granules, noodles, cakes and liquids The compositions are used to inhibit the drop in reflectance or "whiteness"of white cotton fabrics when these are washed.
Patent GB-1360524-A (GB)
Title: Non-woven sheet for tufted carpets
IPC: D06M15/647
Filed: 1972-03-17
Abstract: 1360524 Polypropylene glycol / polysiloxane lubricating emulsions E I DU PONT DE NEMOURS & CO 17 March 1972 [17 March 1971] 12654/72 Headings C3R and C3T [Also in Divisions D1 and C5] A lubricating emulsion for application to a bonded non-woven sheet of synthetic organic fibres, e.g. isotactic polypropylene, polyester or polyamide fibres, for use as a backing for a tufted carpet, comprises 3-50% by weight of liquid polysiloxane, e.g. polymethylhydrogensiloxane or polydimethylsiloxane, and 50-97% by weight of liquid polyoxypropylene compound having a viscosity of at least 100 centipoise at 25 C. and selected from polyoxypropylene glycol and the monalkyl, e.g. butyl ethers thereof.
Patent GB-939252-A (GB)
Title: Improvements in or relating to thermo-setting aminoplastic synthetic resins
Inventor: PIGGOTT KENNETH ELLIOT
IPC: C08L63/00
Filed: 1960-04-11
Abstract: In Example 1 a glass plate is coated with a mixture of (i) a 50% w/w aqueous solution of dimethylol melamine, (ii) a diglycidyl ether of a polyethyleneglycol of M.W. 200 (for preparation see Group IV(a)), and (iii) butyl phosphoric acid.  It was stoved at 140 DEG C. for 30 minutes.ALSO:Aminoplastic resins are modified by adding a mono- and/or di-glycidyl ether of a polyalkylene glycol either to the resin whilst in the form of a water-soluble methylol compound prior to, or during, its conversion to the waterinsoluble state, or to the pre-condensate mixture of the amino- or amido-compound with the methylene-donating agent.  Aminoplasts mentioned are urea- and melamine-formaldehyde, and the glycidyl ethers are preferably of M.W. 600-1,200.  Two preparations of glycidyl ethers are given:- in (a) polyethylene glycol of M.W. 200 is reacted with 2 mols. of epichlorhydrin in the presence of concentrated sulphuric acid, and the product is dehydrohalogenated with NaOH; in (b) the glycol is triethylene glycol.  In In Example (1) an aqueous solution of dimethylol melamine is mixed with the product of (a) and butyl phosphoric acid; in (2) melamine, formaldehyde, the product of (a), water, and phosphoric acid are mixed, heated and cooled; in (3) melamine, formalin and the product of (a) were mixed, NaOH was added and the mixture was heated and then cooled; phosphoric acid was added later.  The products are storagestable and may be used in making paper laminates, impregnating textile fabrics, coating glass, moulding or adhesives.
Patent GB-102475-A (GB)
Title: Improvements in the Means Employed for Drying or Heating the Hoods of Hats in the Process of Moulding the same.
Inventor: POWELL SAMUEL GEORGE
IPC: A42C1/04
Filed: 1916-09-12
Abstract: 102,475. Powell, S. G. Sept. 12, 1916. Blocking, curling, pressing, shaping, and the like.-Felt hats are treated on a block f by steam supplied through a pipe o, the edge being secured partly by pins projecting from the curler b<1> and partly by being tied in a notch l in the curler. The curler is mounted by pins in a collar b, lugs i on which are secured by taper screws k to a wall g integral with the downwardly tapering base a of the steam chamber. When the crown has been sufficiently steamed, the valve o<1> is closed, heat being maintained by steam in pipes n<1>, n<2>. The state of the crown can be ascertained by placing the hand through the opening h. The pressing-device is pivoted to the base and can be swung into and out of operative position. In the form shown, the taper screws pull the collar down on to the base a and wall g to maintain a steamtight joint; but where a gas heating-ring is housed in the channel g<1>, the lugs i are increased in length to space the parts a, b sufficiently to allow combustion products to escape.