baber/WOPTO huggingface dataset:
Patent GB-889535-A (GB)
Title: Mobile vacuum cleaning machine for streets, airport runways and the like
IPC: E01H1/08
Filed: 1958-12-23
Abstract: 889,535. Vacuum scavengering machines. RINGER, K. Dec. 23, 1958 [Feb. 26, 1958], No. 41595/58. Class 107 A road &c. vacuum scavengering machine has a suction nozzle connected to a duct 1 through which air is drawn by blower means 4 driven by a constant speed engine 5 via a shaft 6 and after the dust &c. has been removed in a separator 2 the air is returned to the nozzle area by ducts 8 and 9. Duct 8 supplies the front approach 10 which is formed between the ground and low pressure bag tyres 18. The tyres are formed with circumferential treads 19 and yield locally to allow the passage of large objects without substantially increasing the cross sectional area of the approach. Air is prevented from passing around the tyres by sealing strips 20. The rear approach 11 is fixed and is supplied with air from duct 9. Reduction in the air velocity in the space formed by the junction of the approaches and the nozzle is prevented by a stagnation block-out unit 21 comprising a sectionalized straight plate 22 and. curved plate 23 which are hinged together at 24 and to duct 1 at 38. The unit is positioned by an arm 25 and guide wheel 26. The distance between the bag tyre axle and the ground is controlled by a wheel 39 mounted on a bracket 40 which is pivotally attached to the duct 8 and the free end of the bracket operates limit switches 42, 43 which control the air pressure in the tyres. For transportation purposes the tyres are fully inflated to provide clearance for the front of the vehicle. The ground engaging parts of duct 8 and plate 23 of the block-out unit are formed of yieldable material, e.g. rubber, and the leading part 32 of the block-out plate 22 is hinged 33 to the remainder of the plate and held in its forward position by a spring 34. Some of the air in the return duct 9 is exhausted to the atmosphere by bleed off means 12. In a second arrangement, Fig. 2 (not shown) the bag tyres are replaced by normal tyres and the approach 10 is defined by a sectionalized plate positioned parallel to the ground and each section is yieldably supported from a frame attached to the front axle. This plate and the plate defining the rear approach may be provided with fixed brushes.
Patent GB-1320434-A (GB)
Title: Endless conveyors
IPC: B32B7/08
Filed: 1971-09-07
Abstract: 1320434 Laminated belts POHLIGHECKEL-BLEICHERT VEREINIGTE MASCHINENFABRIKEN AG 7 Sept 1971 [21 Oct 1970] 41704/71 Heading B5N [Also in Division B8] An armoured conveyer belt comprises a tensile element consisting of a flexible endless belt and an armouring element consisting of a plurality of side-by-side laminations extending transversely to the direction of travel and being curved to follow the curvature of a driving and tensioning pulley. The laminations 2 are secured to the belt 3 by means of countersunk screws 3, washers 4 and self-locking nuts 5. Guiding elements (6, not shown) are provided to cooperate with a groove (9, not shown) in each pulley to guide the belt.
Patent GB-896424-A (GB)
Title: Improvements in gripping devices for cylindrical and like objects
Inventor: KNIGHTS RICHARD NORTHAM
IPC: B66C1/34
Filed: 1959-12-08
Abstract: 896,424. Gripping rods. DOWTY ROTAL Ltd. Dec. 6, 1960 [Dec. 8, 1959], No. 41750/59. Class 78 (4). The jaws 15, 16, Fig. 1, of a device for gripping rod-like articles are power-operated by means 11 and locked closed by members 37, 38 operated by further power means 46 which lock the jaws after closure and unlock them before opening. As described, both power means are hydraulic rams and members 37, 38 wedge rollers 32, 34, Figs. 6, 7, between the inner surfaces 25 of the jaw members 15, 16 and cam surfaces 31, 35. To close the jaws, fluid is admitted through ports 50 and 56, Fig. 3, and exhausted through a port 55 moving a piston 24 to the left. This closes the jaws through links 43, 44 and pushes liquid past a valve 49 and out through the port 55. Simultaneously, liquid entering through the port 56 displaces a piston 47 to the right which pulls on links 43, 44 to turn members 37, 38 and lock the jaws in the closed position. The jaws are not prevented from closing by the locking members as the wedging action occurs only when the jaws tend to open. Alternatively the rollers 32, 34 can be spring-loaded into locking engagement and released by hydraulic pressure on the piston 47. To release the lock the ports 50, 56 are exhausted and pressure liquid supplied to the port 55. This holds the valve 49 on its seat so that the piston 47 only is displaced to the left to release the locking members. When the piston 47 is almost at the end of its travel it engages a circlip 53 and lifts the valve 49, thereby admitting pressure fluid to the piston 24 which is moved to the right and opens the jaws. The invention may be applied to the handling of drill pipes, collars and steel casings for oil wells.
Patent GB-1086364-A (GB)
Title: Hydraulically-operated mine prop
IPC: E21D15/44
Filed: 1964-10-13
Abstract: 1,086,364. Hydraulic pit-props. M. VON LINSINGEN [trading as BOCHUMER EISENHUTTE HEINTZMANN & CO.]. Oct. 13, 1964 [Dec. 13, 1963], No. 41753/64. Heading E1E. A hydraulically-operated mine prop comprises an inner prop member 2 slidably engaging in an outer prop member 1, a filler valve 15, a pressure release valve 16 and a safety valve 18, the prop members 1, 2, communicating to form a common pressure chamber 5, 6 with which all the valves are associated, the prop when fully-extended having an overall length of from approximately two metres to four metres, the valves 15, 16 being centrally disposed in the prop 1, 2, (centrally in the member 1,) when it is fully-extended. the valve 18 being in or adjacent the prop head 12. The valve 18 is also an air-release valve for the chamber 5, 6 and the member 1 is considerably longer than the member 2, being preferably at least double its length. In a modification the prop member 2 is considerably longer than the prop member 1, being preferably at least double its length, the valves 15 and 16 being centrally disposed in the member 2. The valves 15, 16 are in a common block 17, having an opening 17a, joining the prop. member interiors, through which passes a resilient return spring 19, (anchored at 20 and 21,) passing also through the prop piston 3.
Patent GB-1532975-A (GB)
Title: Strip-seal pouring components of or for containers
IPC: B65D17/50
Filed: 1975-10-13
Abstract: 1532975 Easy-open can ends CONTINENTAL GROUP Inc 13 Oct 1975 [11 Dot 1974] 41782/75 Addition to 1501162 Heading B8D An eccentric pouring aperture of a metal beverage can end 4, which is sealed by a peelable adhesive pull strip 40, comprises four or more holes so sized and disposed that, on pouring of the can contents, the liquid jets issuing from the holes converge and coalesce into a single stream. As shown, the pouring aperture is formed by four identical holes 9-12 arranged in a cruciform pattern centred on a can diameter with the hole 9 being flanked by smaller holes 13 and 14. A vent hole 28 is additionally provided and a further small hole 27 optionally provided. The pull-strip is of the form described and claimed in the Parent Specification 1,501,162. In modified embodiments, Figs. 6-8 (not shown), the pour aperture is constituted by two pairs of holes (50, 51 and 52, 53), the holes of each pair being symmetrically disposed about a diameter of the can end to define an aperture tapering from adjacent the panel periphery towards the can centre, venting being provided by separate holes or by the inner ends of one pair of holes (52, 53).
Patent GB-1431421-A (GB)
Title: Machines for cleaning glasses and other drinking vessels
IPC: A47L15/00
Filed: 1973-09-05
Abstract: 1431421 Machines for cleaning glasses CLENAGLASS ELECTRIC WASHER Ltd 23 Aug 1974 [5 Sept 1973] 41790/73 Heading B8T A machine for washing drinking vessels comprises a base, a washing tank 3 on the base, having an open top and containing power-driven rotary cleaning brushes 8 and 10 projecting upwards from the bottom of the tank and preferably constructed as in Specification 1,407,731, an inlet for washing liquid preferably controlled as in Specification 1,431,422 and an overflow outlet 19 arranged to discharge washing liquid down the duct 20 and into a trough 21 which is on the base beside the tank and has a drain outlet on the opposite side of the tank to the overflow outlet. Before the washing operation, debris left in the drinking vessels is tipped into the trough which surrounds the washing tank but is prevented from being washed down the drain by an open-ended stopper 24 in the drain outlet. The stopper 24 has a tubular part 26 constricted at its lower end by an inwardly projecting flange 27 which rests on opposite sides of an elongated depression 21a in the bottom of the trough such that restricted openings are defined between the bottom of the depression and the flange 27. A cross-wall 28 divides the bore of the tubular part 26 and this wall projects below the flange 27 together with a further cross-wall 29, at right angles to the wall 28.
Patent GB-1490787-A (GB)
Title: Aircraft ground proximity warning system
IPC: G01C5/00
Filed: 1975-10-14
Abstract: 1490787 Aircraft ground proximity warning system SUNDSTRAND DATA CONTROL Inc 14 Oct 1975 [2 April 1975] 41993/75 Heading B7W In an aircraft landing with the aid of signals from a glide slope beacon and a radio altimeter, an advisory warning is automatically given if the aircraft is too far below the glide path, which warning changes to a command warning if the aircraft is also below a predetermined altitude, the advisory and command warnings being voiced in the form of record sentences "glideslope" and "pull-up" respectively and the warning being repeated at a rate which increases as the deviation from the glide slope increases and/or the altitude decreases. Fig. 2 shows the various altitude h R  and below glide slope combinations which cause the two kinds of warnings. The glide slope signal G/8 or 64, Fig. 4 is integrated at 46, Fig. 3, whilst switch 44 is open and produces a negative going ramp voltage 54 at one input of comparator 38. The altitude signal h R  (or h 1  in Fig. 4), is fed via summing circuit 36 to the other input of comparator 38. Equality of the inputs gives a positive going pulse 40 which closes switch 44 for a preset period to return the integration output to zero. Pulse 40 is differentiated at 56 to give the warning triggering pulse 58 from NOR logic 32 for voice warning generator 18. Pulse 40, after differentiation at 60 is combined at 36 with the altitude signal to cause the comparator output to open switch 44 again and so produce another ramp voltage. A series of trigger pulses 56 having a p.r.p. is produced, where R.C. is the time constant of the integration. Waveform 54 shows how the p.r.p. #T is changed for a new value of altitude h 2 . The voice warning generator 18 (Fig. 5, not shown) stores the voice warning in digital form in a R.E.M., with a digital to analog conversion outputting to the speaker.
Patent GB-1105949-A (GB)
Title: Well completion apparatus
Inventor: HARLAN DON LANGSTON
IPC: E21B43/14
Filed: 1965-10-05
Abstract: 1,105,949. Wells. TEXACO DEVELOPMENT CORPORATION. 5, Oct., 1965, No. 42309/65. Heading E1F. Apparatus for controlling production from a multizone well comprises a production string 18, seals 22 for isolating each zone, flow regulating devices 32 in the connection between a zone and the interior of the string, a flow meter 36 movable in the string for measuring flow from a zone into the string, and conduits 49 through which production from one zone can by-pass the flow meter positioned in another zone so that the flow from each zone may be measured and adjusted by a device 32. The device 32 is an exchangeable or adjustable choke, and the flowmeter may also measure gas to oil ratio, sediment in water, specific gravity, and temperature. When the pressures in the zones fall, the flow through the production string may be assisted by gas lift valves 50. The apparatus permits the separate acidizing or fracturing of each zone.
Patent GB-938009-A (GB)
Title: Support arches for underground roads in mines
IPC: E21D11/18
Filed: 1959-12-15
Abstract: 938,009. Yielding mine arches. K. T. JASPER. Dec. 15, 1959 [Dec. 27, 1958; March 3, 1959; March 10, 1959], No. 42539/59. Class 20 (2). [Also in Group XXI] In a mine roof supporting structure comprising two arches, Fig. 2, each composed of segments 10, 11 interconnected by yieldable joints, the opposed segments of the arches are connected together by transverse members 12 and/or 13 which may be in the form of an open lattice construction, see Fig. 13 (not shown). Each arch may consist of U-shaped segments 10, 11, Fig. 4, clamped together by a stirrup member 15 or 15a acting through friction pads 16. In a modification, Fig. 8, the segments 10, 11 are yieldingly connected by a clamping bond 112 positioned by a wedge 113 or wedge and pin means, see Figs. 10 and 11 (not shown). The segments may be yieldingly joined by elbowshaped intermediate elements, see Figs. 12-17 and 20 (not shown). Again, the segments may consist of H-section elements connected in staggered juxtaposition by a wedged sleeve, see Figs. 18 and 19 (not shown).
Patent GB-958976-A (GB)
Title: Improvements in or relating to circuit arrangements for stabilizing a rectified voltage
IPC: G05F1/52
Filed: 1960-12-12
Abstract: 958,976. Automatic voltage control. PHILIPS ELECTRICAL INDUSTRIES Ltd. Dec. 12, 1960 (Dec. 15, 1959, No. 42676/60. Heading G3R. A rectified supply is stabilised by a seriesconnected pentode B biased by valve V comparing a reference voltage from a source R with a fraction of the output voltage derived from a potentiometer P. The ripple voltage superimposed on the output voltage is reduced by connecting a diode D between the anode and screen-grid of the pentode B so that the voltage across a capacitor C 2  is maintained substantially constant. The diode D prevents the discharge of capacitor C 2  when the anode to cathode voltage falls below the voltage across the capacitor. In a modification, for current over 1 Ampere the diode is connected to a tapping on a choke connected between a positive terminal of the rectified supply and the anode.
Patent GB-1012546-A (GB)
Title: Towing fixture for submersible vessels
IPC: B63B21/56
Filed: 1963-10-30
Abstract: 1,012,546. Towing ships. CONTINENTAL OIL CO. Oct. 30, 1963 [Nov. 26, 1962], No. 42793/63. Heading B7V. A towing fixture for a submersible craft comprises a hook 3 attached to a hull 1 and having a recess 3b, and a rod 6 movable into the recess by an air motor 8 through gearing 9 and a rack 6c operated by a chamber 10 and a valve 11. An endless rope 4 having a tow-line engaging member 5 is passed around a capstan la and through a hole 3a in the hook 3 so that it is able to pull a link 12 of a tow-line into the hook to be locked in position by the rod 6. The rod may be operated by electric or hydraulic motor, or manually. The movement of the rod may be controlled by radio.
Patent GB-1362366-A (GB)
Title: Propion-amidotriazines and agent for regulating plant growth
IPC: C07D251/52
Filed: 1970-09-08
Abstract: 1362366 Propionamidotriazines DEUTSCHE GOLD - UND SILBER - SCHEIDEANSTALT 1 Sept 1971 [8 Sept 1970] 42891/70 Heading C2C Novel compounds of general formula in which X represents a C 1-4  linear or branched alkylmercapto or alkoxy group, or a benzylmercapto or phenylmercapto group; R<SP>1</SP> and R<SP>2</SP> which may be the same or different each represent H, a cyclohexyl group, a benzyl group or a linear or branched C 1-4  alkyl group, optionally substituted by -SR, -OH, -OR or -CN groups where R is C 1-4  alkyl; R<SP>1</SP> and R<SP>2</SP> taken together may also form a 5- or 6-membered ring, optionally containing an O atom, and R<SP>3</SP> represents H or a C 1-4  linear or branched alkylmercapto or alkoxy group, may be prepared by reacting an appropriate aminotriazine with a compound of formula Cl.CO 1 CH 2 CH 2 R<SP>3</SP> or R<SP>3</SP>CH 2 CH 2 CO.O.CO.CH 2 CH 2 R<SP>3</SP> in a solvent in the presence of a chlorinating agent, e.g. at 40-80‹ C. The novel compounds exhibit plant growth regulant properties.
Patent GB-898103-A (GB)
Title: Improved binding agent for refractory materials
Inventor: SHAW CLIFFORD
IPC: C04B12/04
Filed: 1959-12-18
Abstract: Silica alcosols are prepared by acidifying an aqueous alkali metal silicate to form a silica hydrosol, adding an alcohol to replace the water, salting out the water with an inorganic salt and separating the resultant alcosol layer: thereafter a solution of ethyl silicate in an alcohol is added to produce a refractory-binding solution.  If desired only a part of the alcohol need be added before the inorganic salt.  As exemplified, the hydrosol is prepared from sodium silicate and sulphuric acid, the alcohol replacing the water is i-propyl alcohol and the salt is sodium chloride.  Sodium sulphate is also referred to.  The ethyl silicate is in methyl alcohol solution. Specification 841,874 is referred to in the Provisional Specification.ALSO:A binding composition for refractory materials which is converted by heating to silica comprises a silica alcosol prepared by displacing the water in a hydrosol (see Group III) to which is added less than an equal volume of a 70% solution of ethyl silicate in an alcohol.  As exemplified, the alcohol replacing the water is i-propyl alcohol and the ethyl silicate is in methyl alcohol solution.  Specification 841,874 is referred to in the Provisional Specification.
Patent GB-1043589-A (GB)
Title: Improvements in regulators
IPC: H02J7/24
Filed: 1963-11-01
Abstract: 1,043,589. Automatic voltage control. ROBERT BOSCH G.m.b.H. Nov. 1, 1963 [NOV. 2, 1962], No. 43148/63. Heading G3R. [Also in Division H2] A voltage regulator for a shunt excited generator comprises a main switching transistor 33 in series with the field winding 11 of the generator, a control transistor 34 associated with a reference Zener diode 38 and a voltage divider 36, 37 sensing the output voltage, and a positive feedback resistor 42 connected as shown between the Zener diode 38 and the collector of transistor 33. The provision of resistor 42 enables the transistor 33 quickly to switch from a conducting to a non-conducting condition, and vice-verse, under the control of transistor 34. An iron cored choke 44 may be connected between the Zener diode 38 and the point P on the voltage divider 36, 37, to reduce the effect of harmonics on the operation of the regulator, which acts in the usual manner to ensure a constant output voltage by averaging the field current of the generator.
Patent GB-1533222-A (GB)
Title: Sealing action door
IPC: E06B5/14
Filed: 1975-12-31
Abstract: 1533222 Sliding door A W RULE 31 Dec 1975 [4 Oct 1974] 43249/74 Heading E1J A sliding door comprises a wing frame 11 within which is mounted a sub-frame 12 bearing a panel 10; the frame 11 slides on lower 4 and upper 3 guide rails e.g. on wheels 14 and guide rollers 13; the sub frame 12 is carried on rollers 15 and is movable in a direction at right angles to the panel by hydraulic rams 16 bringing the seals 120 into firm contact with the wall-opening surround, thrust rollers 17 are provided. The pump unit 6 provides hydraulic fluid under pressure and limit switches control the pump so that the rams can only operate when the door is in the closed position. The door may provide a gas- or liquid-tight closure or with a suitable panel sound insulation. The hydraulic rams may be replaced by screws or cams.
Patent GB-1268600-A (GB)
Title: Thiol- or thionothio-phosphoric or phosphonic acid esters, process for their preparation, and their use as insecticides and acaricides
Inventor: SCHRADER GERHARD
IPC: A01N57/04
Filed: 1970-09-10
Abstract: 1,268,600. Thiophosphoric and thiophosphonic acid esters. FARBENFABRIKEN BAYER A.G. 10 Sept., 1970 [10 Sept., 1969], No. 43367/70. Headings C2C and C2P. Novel compounds of the general formula wherein R 1  is an optionally halogen-substituted C 1 -C 4  alkyl or alkoxy group, R 2  is an optionally halogen-substituted C 1 -C 4  alkyl radical and X is an O or S atom are obtained by reacting a salt of the formula (R 1 )(R 2 O)P(X)SM in which M is a monovalent metal equivalent e.g. Na or K, or an ammonium group with a compound of the formula: HalCH 2 SCH(CH 3 )CH 2 Hal<SP>1</SP> wherein Hal and Hal<SP>1</SP> are Cl or Br atoms. The reaction is preferably carried out in a solvent or diluent and is most suitably effected at 20 to 70 C. The products have insecticidal and acaricidal properties and may be used in admixture with liquid or solid diluents or carriers, optionally with the use of surface active agents, e.g. in the form of solutions, emulsifiable concentrates, emulsions, suspensions, spray powders, pastes, soluble powders, dusting agents or granulates. 1-Bromo-isopropyl mercaptan is obtained by reacting 40% HBr with propylene sulphide followed by extraction with methylene chloride and fractional distillation of the extract. The product is then added to a stirred suspension of paraformaldehyde in benzene to which concentrated HCl has been added. After reaction for 2 hours at 50 C. chloromethyl-1-bromoisopropyl thioether is recovered from the benzene solution by washing with water, drying with Na 2 SO 4 , and then fractionally distilling.
Patent GB-1117898-A (GB)
Title: Improvements relating to fan heaters
Inventor: COOPER BRIAN
IPC: F24H3/04
Filed: 1964-10-23
Abstract: 1,117,898. Air heaters. FIRTH CLEVELAND Ltd. 22 Oct., 1965 [23 Oct., 1964], No. 43441/64. Heading H5H. [Also in Division F4] A space heater or hair dryer comprises a casing 1, a cross-flow fan having a rotor 25 and a heating element 30, the casing being formed of two parts 2 and 3 of which the latter serves to locate the fan motor, rotor 25 and element 30 and the former to hold these elements in their located positions, when the parts 2 and 3 are co-assembled. Heating element 30 comprises upper and lower metal plates 31, 32 between which extend insulating members 33 carrying electrical resistance wire (not shown), plate 32 having end projections which are located in grooves (37), (Fig. 6, not shown) in the walls of casing part 3. Plate 31 is extended towards rotor 25 to form a guide surface 38 therefor and terminates in a vertical portion 39 which is held in grooves in casing part 2. An outlet grille 10 is also held in grooves in the casing parts. Apertures 46 are provided in plate 31 so that some air can flow between plate 31 and casing part 2 as well as between plate 32 and casing part 3 to prevent overheating of the casing. The rotor 25 has at one end a stub shaft (28), (Fig. 4, not shown), having a bearing assembly (27) located in a recess in the wall of casing part 3 and at its other end is connected to the motor shaft (26). The stator (23) of the motor is attached to plates (22) the ends of which are located in grooves 24 in part 3. Parts 2, 3 are formed of injection moulded polystyrene.
Patent GB-931928-A (GB)
Title: Improvements in and relating to screw presses for the treatment of thermoplastic materials
IPC: B29C48/405
Filed: 1961-12-05
Abstract: 931,928. Pug mills. R. KESTERMANN, and A. KESTERMANN, [trading as GERHARD KESTERMANN ZAHNRADERUND MASCHINENFABRIK KOMM.-GES.]. Dec. 5, 1961 [Dec. 6, 1960], No. 43476/61. Class 86. [Also in Group V] A screw press for thermoplastic materials comprises two or more screws L, R, in mesh with one another, on each of which at least one additional screw thread 3 is developed with a diameter increasing in the direction of flow of the plastic up to the outer diameter of the screws. The press may have an entry portion AB and a discharge portion EF separated by the treatment portion CD in which the thread 3 expands to its final size.