baber/WOPTO huggingface dataset:
Patent GB-1515545-A (GB)
Title: Method of providing a surface dressing for a roadway
IPC: E01C7/35
Filed: 1975-07-07
Abstract: 1515545 Surfacing roads HUILES GOUDRONS ET DERIVES 7 July 1975 [16 July 1974 10 April 1975] 28495/75 Heading E1G In a method of providing a surface dressing on a roadway a layer of aggregate is deposited on a layer of distributed binder formed of 70% to 85% by weight of bitumen and 15% to 30% by weight of pitch tar, and the composite layer is then heated (as by hot air, gas or by infra-red radiation) to a temperature between 100C and 200C. The composite layer may be compacted, as by rolling, before heating. The binder is deposited at a rate between 0.8 and 1.8kg per square metre at a temperature between 80C and 140C.
Patent GB-1189024-A (GB)
Title: Improvements in Valves for Fluids
IPC: F16K11/07
Filed: 1967-06-21
Abstract: 1,189,024. Valves. SPERRY RAND CORP. 21 June, 1967 [24 June, 1966], No. 28540/67. Heading F2V. Double start screw-threads are cut in the lands 68 of the spool 66 of a piston valve so that fluid continuously leaks past the lands, thereby maintaining them concentric with base 28 so that spool locking is avoided. This leakage fluid also provides pressure assistance to movement of the spool by solenoid 12.
Patent GB-1347880-A (GB)
Title: Devices for holding ring-shaped workpieces
IPC: B24B41/06
Filed: 1971-06-17
Abstract: 1347880 Work holders LIDKOPINGS MEKANISKA VERKSTADS AB 17 June 1971 [18 June 1970] 28549/71 Heading B3D A device, e.g. for holding a ball race 48 or other ring-like member for grinding or polishing comprises two holding members 15, 42 for acting axially on the ring 48 under fluid pressure, one member 15 being rotatable, and spaced clamping jaws 23, 30 for acting radially on the ring 48 through fluid pressure cushions 26, 27, 32. The holding members 15, 42 are supported by backing rings 1, 35, pressure medium, e.g. air, coolant or water, being supplied through inlets 14, 41, to channels or pockets 12, 13, 39, 40, to engage the members 15, 42 with the ring 48. An intermediate movable ring 3 supports the member 15, pressure through an inlet 5A urging the member 15 against the ring 48, and rotation of the member 15 is effected through a shaft 22. For radial location, the jaw 30 is pivoted into engagement with the ring 48 in co-operation with the jaw 23, pressure being supplied to the cushions 26, 27, 32 through inlets 28, 29, 33.
Patent GB-709661-A (GB)
Title: Improvements in or relating to sealing means for doors and other openings
Inventor: MORPHEW LAURENCE RICHARD
IPC: B60J10/08
Filed: 1951-12-05
Abstract: 709,661. Draught excluders. PRESSED STEEL CO., Ltd. Dec. 3, 1952 [Dec. 5, 1951], No. 28557/51. Class 20 (3) A sealing strip for doors and other openings comprises a strip of sponge rubber 11 having a first surface 12 arranged to be secured to the frame of a door or other opening and lying in a plane parallel to the plane of the opening, a second surface 13 at right angles to the surface 12 and facing towards the centre of the opening, and a third surface 14 against which a closure member bears to seal the opening, a narrow strip 16 of substantially non-compressible material, e.g. spring steel or cardboard, being embedded in the rubber strip as shown. The sponge rubber strip may have an impervious rubber skin 15. The non-compressible strip may in modification be secured to the surface 13 or when of U-section as shown in Fig. 5 may be partly within and partly outside the rubber strip.
Patent GB-1335425-A (GB)
Title: Thermoplastic polymeric compositions based on vinyl chloride polymers having a high degree of crystallinity
IPC: C08L27/06
Filed: 1971-06-17
Abstract: 1335425 Thermoplastic polymer compositions MONTECATINI EDISON SpA 17 June 1971 [19 June 1970] 28563/71 Headings C3G and C3P Thermoplastic polymer compositions comprise (a) at least one vinyl chloride polymer and/or copolymer having a syndiotactic index of from 1À8 to 2À4 and (b) a polymethylmethacrylate having a M.W. of 100,000-1,000,000. The compositions preferably also contain (c) a highly resilient polymer, which may be one of many defined types. Exemplified compositions comprise crystalline PVC, polymethylmethacrylate, either of the two graft copolymers specified below, a Ba-Cd stabilizer, lead stearate, epoxyoctyl stearate, calcium stearate, "Vaseline oil" (Registered Trade Mark), TiO 2  and CaCO 3 . The graft copolymers used are (1) a copolymer of styrene and acrylonitrile on an elastomeric butadiene/acrylonitrile base copolymer, and (2) a copolymer of styrene and methylmethacrylate on an elastomeric butadiene/styrene base copolymer.
Patent GB-1031946-A (GB)
Title: Improvements in and relating to disc brakes
IPC: F16D65/18
Filed: 1964-07-10
Abstract: 1,031,946. Disc brakes. H. TEVES, E. A. TEVES, and M. TAUSEND. July 10, 1964 [Aug. 29, 1963], No. 28593/64. Heading F2E. A heat screening plate disposed between the piston and brake pad of a disc brake has a part annular opening 15 receiving a corresponding partannular projection 13 on the actuating cylinder face, has a portion 11 (Fig. 3b, not shown) which enters and is retained within a central bore in the piston, and has abutments 16 or 17 engaging the brake housing to prevent rotation of the screen and the piston. When the brake is applied only the portion 13 of the piston face engages the pad backing plate and this is stated to reduce noise. The screen may be reinforced by corrugations or folds and may be of thin, almost foil-like material. The Specification also describes a single clip (Fig. 4, not shown) which retains both of the pad retaining pins 6.
Patent GB-713410-A (GB)
Title: Improvements in or relating to an explosively actuated driving tool
Inventor: TEMPLE ROBERT
IPC: B25C1/12
Filed: 1952-11-14
Abstract: 713,410. Bolt-firing tools. TEMPLE VELOCITY EQUIPMENT, Inc. Nov. 14, 1952, No. 28758/52. Class 119  An explosively operated tool as described in Specification 660,934 has a device in the breech block to compress the firing spring to a predetermined amount and then release it to allow the firing pin to strike the cartridge. As shown, the breech block 7, attached to a barrel 6 which slides in a sleeve 3 attached to a stock 2 carrying a firing pin 22, has a hollow extension 8 in which is housed a spring compressor 42. The firing pin may be moved from the retracted safety position to the firing position by operation of a handle 38. Forward movement of the stock brings projections 48 on the spring compressor 42 into contact with a firing collar 32 and also compresses the firing spring 33. In the firing position of the firing pin a shoulder 37 on a rod carrying the pin makes contact with a trip ring 34 which, in turn, prevents further movement of the collar 32 and the projections 48 on the spring compressor may move radially outwards over the collar and allow the spring to force the firing pin through an aperture 21 in the breech block and fire the cartridge. If the firing pin is in the safety position the extension 8 of the breech block comes into contact with a stop 36 and the trip ring 34 does not allow the spring to be released. In a modification, Figs. 8 and 9 (not shown), the firing pin is fitted in a housing which is held steady against radial projections spring urged into contact with if and which are retracted when the shoulder 37 makes contact with the housing.
Patent GB-1509605-A (GB)
Title: Dental handpiece
IPC: H02K5/173
Filed: 1975-07-08
Abstract: 1509605 Supporting motor rotors in dental handpieces SIEMENS AG 8 July 1975 [31 July 1974] 28761/75 Heading H2A A dental handpiece motor rotor is mounted in rolling bearings having outer rings supported radially in a housing by resilient elements, at least one of the outer rings being resiliently supported axially, and an axial biasing force being applied to the bearings. In the arrangement shown, a rotor 6 is mounted within a housing 5 by means of two ball bearings 7, 8 having outer rings 15, 17 radially supported by two resilient 0-rings 12, 13, the ring 15 abutting axially against a fixed end cap 16 in consequence of an axial bias applied to the bearings by means of a spring washer 18 pressing against the axial end face of the ring 17. In a modification (Fig. 3, not shown), two ball bearings (22, 23) surrounded by 0-rings (24, 25) having outer rings (28, 29) with radial flanges (26, 27) and are axially biased either by a set of spring loaded shim discs (33) acting on one outer ring (28), or by an adjustable ring (35) pressing against an adjacent 0-ring (24).
Patent GB-1434413-A (GB)
Title: Prosthetic foot
IPC: A61F2/66
Filed: 1973-06-18
Abstract: 1434413 Prosthetic feet J E HANGER & CO Ltd 18 June 1974 [18 June 1973] 28829 73 Heading A5R A prosthetic foot comprises a rigid polyurethane foam keel I with a balala spring toe 2 connected to it by screws 3, a T-bolt 4 through a central aperture in the keel; the transversely extending arms of which provide pivots for bearings 6 of a shin member base plate 7, a resilent rubber block 8 compressed and housed in a partial recess between the anterior parts of the base member and keel to provide cushioning, and a corresponding block 9 for the posterior parts. In a dual pivot version, Fig. 2 (not shown), the T-bolt provides for articulation at right angles to the axis of the pivot arms and its vertical leg, further cushioning being provided by rubber blocks compressed between the side parts of the base member and keel.
Patent GB-1319801-A (GB)
Title: Chromizing ferrous metal substrates
IPC: C23C10/32
Filed: 1970-06-15
Abstract: 1319801 Chromising ferrous substrates ALBRIGHT & WILSON Ltd 15 June 1970 [13 June 1969 6 May 1970] 28929/70 Headings C7D and C7F Ferrous strip or sheet is chromised by coating with an adhesive prior to applying a powdered Cr containing material and then without compacting the powder heating in the presence of a halogen containing compound. The adhesive layer may be applied as a powder or solution e.g. sodium silicate, methyl cellulose and polymers such as polyvinyl pyrrolidone either before, during or after applying the halogen compound to the substrate. Alternatively the halogen compound may itself form the adhesive layer. The halogen compounds used may be halide of Fe, Mn, Co, Ni, Al, alkali-metals and NH 4  Cl. Spent HCl pickle layer may also be used and the compounds are preferably applied as solutions or suspensions in water or organic liquids on one or both faces of the substrate. The Cr containing powder may be Cr, Fe/Cr, Cr/Ni or Fe/Cr/Ni may be applied as a gas suspension or aerosol, electrostatically from a fluidized bed, inbrator or metering drum. It is applied when the substrate surface is still wet so that the powder is retained on the surface without a melting step. Heat treatment is effected at 370-425‹ C in a first step and 840-1010‹ C in the final step. The atmosphere is purged with N 2  and heating is under H 2  or H 2  and an inert gas. The strip may be coiled prior to heating or sheets may be stacked on each other. Alternatively the halogen source may be introduced separately as a powder, gas or solution after the substrate has been coated with the adhesive and Cr material. The ferrous substrate may be Ni plated prior to chromising.
Patent GB-729944-A (GB)
Title: Improvements in or relating to sound signalling apparatus
IPC: G08B3/10
Filed: 1952-11-17
Abstract: 729,944. Audible and like signalling apparatus. SVENSKA AKTIEBOLAGET GASACCUMULATOR. Nov. 17, 1952 [Dec. 3, 1951], No. 28954/52. Class 118 (2). Protection against excessive amplitude of diaphragms in sound signalling apparatus employing vibrating diaphragms (due, for example, to reduction of the normal damping in a fog-horn by ice formation) is provided by means of contacts operated by the diaphragm when the amplitude thereof exceeds a predetermined value, said contacts controlling a relay which reduces the energy supplied to the sound signalling apparatus and also holds itself operated. Sound signalling apparatus 1 comprises two diaphragm units operated by alternating current (e.g. 150 c/s.) with a condenser 2 in parallel for tuning. The contacts 11 comprise a main switch which may be operated intermittently for signalling. Excess amplitude of a diaphragm opens contact 6 or 7 which normally shortcircuit a relay coil 3. This causes the relay to be energized to operate a signal or, as shown, to change-over contacts 8 which put a resistance 9 into circuit and short out the apparatus 1. Alternatively the contacts 8 may comprise a simple break to merely reduce power supplied to apparatus 1 by the series resistance 9. The relay also opens break contacts 10 to hold itself operated. The relay is supplied from the A.C. source via a rectifier 4 and a resistance 12 is inserted to avoid overload while relay 3 is normally short-circuited. In the modification of Fig. 2 (not shown) the contacts 6 and 7 are arranged to be normally open and are closed by excess diaphragm amplitude. The relay 3 is in series with the contacts and operates when they close. It holds itself and connects an extra condenser in parallel with the condenser 2 to detune the circuit and reduce power supplied to the apparatus by virtue of the internal impedance of the source or a series choke. The diaphragm need not be the direct sound producer but may vary the air supply to an airdriven signal horn.
Patent GB-250292-A (GB)
Title: Feathering screw propellers
IPC: B64C11/42
Filed: 1924-12-03
Abstract: 250,292. Shaw, H. S. Hele-, and Beacham, T. E. Dec. 3, 1924. Screw propellers.-A variable pitch propeller is controlled automatically by an engine, governor acting through a hydraulic transmission gear, over-riding hand control also being fitted. The root of each blade is provided with an arm 7, Figs. 1 and 3, having a tee-piece connection 8, 9 with arms on a crosshead 10 coaxial with the propeller shaft 3. To set all the blades equally, the connection 8, 9 is provided with an eccentric bush 58. The crosshead 10 is mounted in bearings 11, 12 and moves over a fixed piston 13 and is restrained by a spring 15. A central valve 25 has annular ports 26, 27, 28 co-operating with passages 29, 30, 31 in the piston and with three concentric pipes 34, 35, 36, which communicate at the union 45 with three pipes 46, 47, 48 leading to the flow and return of the variable delivery pump 49 and the sump respectively. The governor 51, driven by the engine, operates the stroke-varying spindle 52 through a floating lever 53 which is also coupled to a hand lever 54. The pump is preferably of the kind described in Specification 9402/10, [Class 69 (ii), Hydraulic presses &c.]. At the limits of the stroke of the crosshead. the ports 31 or 32 are opened to by-pass the liquid, and in the event of failure of the hydraulic system, the spring 15 returns the crosshead to a set position. A makeup tank 57 is provided. The pitch may be changed. by hand by moving the sleeve 43, which has a ball-race connection with a sleeve 41 attached to the crosshead. According to the Provisional Specifications, a hand-operated pump may be coupled to the transmission system, and the crosshead may be fixed whilst the boss is made to slide relatively thereto.
Patent GB-732761-A (GB)
Title: Improvements in or relating to collapsible containers
Inventor: MAYNARD MICHAEL
IPC: B65D35/02
Filed: 1953-10-21
Abstract: 732,761. Collapsible tubes. GESTETNER, Ltd. May 28, 1954 [Oct. 21, 1953], No. 29104/53. Class 66. The shoulder piece 6 of a collapsible tube 5 of a vinyl plastic adapted to be emptied by suction applied to a tube 8 is locally weakened as by radial lines I so that under pressure it will collapse or fold to ensure complete emptying of the tube. The radial grooves may be in line and formed on the outer or inner surface of the shoulder piece or on both surfaces.
Patent GB-157615-A (GB)
Title: Improvements in or relating to rotary apparatus for stropping safety razor blades
IPC: B24D15/08
Filed: 1919-11-22
Abstract: 157,615. Murphy, S. J. Nov. 22, 1919. Stropping-apparatus.-Apparatus for stropping safety-razor blades comprises two stropping- rollers a, the spindles b of which are maintained in bearings formed by the curved branches e of slots in the arms c of a frame d, by the mutual repulsion between the rollers due to the resilience of the material, for example, india-rubber, of which the rollers or their coverings are formed. The blade is positioned between the rollers by slits j in plates f located between the ends of the rollers and the arms c, each plate having at its lower end a pair of notches g to straddle the roller spindles and a projection h adapted to be pressed by the resilience of the rollers into a slnt i in the corresponding arm c. To facilitate the placing of Gillette and like blades, the arms c are offset outwardly, as shown in Fig. 1, and the plates f are so spaced apart that the ends of the blade edge rest on the bottom of the slits j. The rollers are rotated by a handle m on the spindle of one roller, the other being rotated by its frictional contact with the first roller. The container n in which the apparatus is stored may serve as a base for the apparatus which is secured thereto, or to another support, by tongues o on the frame d engaging with slots p in the lid or with loops thereon.
Patent GB-835434-A (GB)
Title: Closures for bottles, glasses or the like
IPC: B65D41/04
Filed: 1956-09-24
Abstract: 835,434. Bottle caps. MEISTER, O., MEISTER, P., and MULLER, K., [trading as HUBER BLECHWARENFABRIK, K.]. Sept. 24, 1956 [Sept. 22, 1955], No. 29173/56. Class 125(3). A closure cap 2 of resilient material has a funnel-like projection 3 the diameter of which increases away from end wall 1 and the outer diameter D of which is larger than the inner diameter of the bottle neck so that when the cap is applied to a bottle the part 3 is deformed and turned inside out to seal on the inner wall of the bottle mouth. If the diameter of the bottle opening is smaller than the minimum diameter of the projection 3 the latter will seal on the upper rim as in Fig. 2 which shows a screw cap closure.
Patent GB-1377465-A (GB)
Title: Agents for regulating plant growth
IPC: C07D213/04
Filed: 1973-06-20
Abstract: 1377465 Plant growth regulation using pyridinium salts BAYER AG 20 June 1973 [21 June 1972] 29203/73 Heading C1B [Also in Division C2] A plant-growth-regulating composition contains as active ingredient a 2-hydroxyethyl-1- pyridinium-(1) salt of the general formula in which R is optionally substituted phenyl, furyl or thienyl; n is 1, 2 or 3; R<SP>1</SP> is hydrogen, alkyl with up to 6 carbon atoms or halogen, the substituents R<SP>1</SP> being selected independently of one another when n is 2 or 3, and X# is a halide or perchlorate ion, in admixture with a solid or liquefied gaseous diluent or carrier or in admixture with a liquid diluent or carrier containing a surface-active agent.
Patent GB-1190965-A (GB)
Title: Photoelectrophoretic Imaging Process
IPC: G03G17/04
Filed: 1967-06-23
Abstract: 1,190,965. Photo-electrophoretic imaging composition. XEROX CORP. 23 June, 1967 [27 June, 1966], No. 29214/67. Heading H1K. [Also in Division G2] A suspension for polychromatic electrophoretic imaging comprises an insulating liquid having suspended therein electrically photosensitive magenta particles responding primarily to green light, the particles having the formula wherein X is H, NO 2  or halogen, Me is Pb, Cr or Al, Y is H or alkyl, n is 1 to 4 and Z is the valency of the metal ion Me. The preferred particles are the lead lake of 2,7-dinitro-4,5- dibromofluorescein or of 2,4,5,7-tetrabromofluorescein. Cyan and yellow pigments may be added for multicolour images.
Patent GB-641778-A (GB)
Title: Improvements in or relating to regulating systems for electric motors
IPC: H02P9/42
Filed: 1947-12-12
Abstract: 641,778. Automatic control systems for electric motors. SEDGFIELD, H. B., DOWNES, F. A., and SPERRY GYROSCOPE CO., Ltd. Dec. 12, 1947, No. 29233/48. Divided out of 641,742. [Class 38 (iv)] [Also in Group XXXVII] The speed of a D.C. armature 10 is controlled by the centrifugal switch 16, 19 which is carried on the disc 26 mounted on the motor shaft and which short circuits the motor series field when the speed is below the datum value.
Patent GB-1103168-A (GB)
Title: Process for de-copperising lead
Inventor: MILNER GEOFFREY
IPC: C22B13/06
Filed: 1964-07-17
Abstract: A method for decopperizing lead of a relatively high copper content comprises mixing the molten raw lead bullion with a decopperized lead bullion, adding a material containing an element cr elements which can combine with copper (e.g. S, As or Sb), cooling the mixture or allowing it to cool, periodically adding further raw bullion each addition being followed by an addition of the above material and a cooling step and finally skimming of the dross and cooling to yield a decopperized lead bullion.  The above material may be granulated elemental sulphur or a lead bullion rich in arsenic and/or antimony. In a modification the material may be added to the contents of the vessel prior to the addition of the raw bullion.  The cooling may be effected by blowing air round the vessel or by the addition of solid lead to the contents thereof.  The drying of the dross prior to skimming by the addition of sawdust is also disclosed.  The product of the process after skimming may be pumped to another vessel and have powdered sulphur added thereto the bullion being just above the melting point thereof or it may be cast into pigs directly. An antimony copper rich dross may be reacted with galena and scrap iron to yield a matte containing copper lead and iron and a lead bullion rich in antimony.
Patent GB-446626-A (GB)
Title: Improved apparatus for producing pressure in containers for liquids by means of solid carbon dioxide
IPC: A23L2/54
Filed: 1935-10-23
Abstract: 446,626. Delivering liquids by gas pressure. I. G. FARBENINDUSTRIE AKT.-GES., Frankfort-on-Main, Germany. Oct. 23, 1935, No. 29246. Convention date, Oct. 27, 1934. [Class 102 (ii)] [See also Group VI] A liquid container a, such as a vineyard sprayer or siphon bottle, in which pressure is produced by means of solid carbon - dioxide, is fitted with a chamber b for the solid carbon-dioxide which is secured in the neck of the container a, is perforated over its lower part to allow diffusion of the gas, and is solid over its upper part. By this arrangement, the container can be filled with liquid only up to the highest perforations. The closing cap e of the container carries a measuring cup d and a valve e for relieving the pressure in the container if desired, Liquid is discharged at the outlet f.
Patent GB-151504-A (GB)
Title: Improvements relating to the manufacture of boots and shoes
IPC: A43B13/38
Filed: 1919-11-24
Abstract: 151,504. Rice, F. E., and Rush, W. A., (trading as Rush & Son, W.). Nov. 24, 1919. Insoles; lasting, methods of.-A composite inner sole in made from a whole flexible inner sole A, Fig. 1. of leather russet to which four pieces of leather, Figs. 5, 2, 3 and 4, are applied. The shank piece, Fig. 3, is thick in the middle 2 and tapered towards each edge. The several pieces overlap and are tapered at those edges. In lasting, Fig. 11, the toe and heel portions only are secured with tacks G, H.
Patent GB-1036350-A (GB)
Title: Filter units for liquid filters
Inventor: BUCKMAN KENNETH ERNEST
IPC: B01D27/06
Filed: 1964-07-17
Abstract: Concentric pleated paper cylindrical elements effect filtration of oil inwards through the outer one 15, (Fig. 1, not shown), and simultaneously outwards through the inner one 16.  The lower ends are closed by an end plate which abuts the pleats and has a central inlet opening.  The upper ends are closed by an end plate whose outer portion abuts the pleats of the outer element but whose inner portion is spaced axially from the pleats of the inner element to provide a collecting space which communicates with the region above the elements by radial holes in a re-entrant portion of the end plate.  A one-handed outer casing for screwing on to an engine mounting and having appropriate inlet and by-pass valves is provided.