baber/WOPTO huggingface dataset:
Patent GB-794045-A (GB)
Title: Motor-driven screwing-in tool for screwing-in and tightening screws or nuts
IPC: B25B23/14
Filed: 1955-07-12
Abstract: 794,045. Screwing-up nuts. WILLE, E., and WILLE, W. July 12, 1955 [July 28, 1954; Dec. 6, 1954], No. 20118/55. Class 83 (3). [Also in Group XXIV] A nut-running socket 15 is driven at high speed until it encounters tightening resistance, which renders effective a low-speed drive which may be either geared or by a separate electrical, pneumatic or hydraulic motor, and drives through a torque-limit coupling 14. A single motor 1, Fig. 1, drives the socket 15 at high speed, through primary reducing-gear 3, slipcoupling 7, shaft 12 and torque-limit-coupling 14. Tightening resistance causes the coupling 7 to yield, whereupon a previously over-running one-way clutch 13 picks up a low-speed drive through a countershaft pair 9. Multiple sockets 23, Fig. 3, each including a torque-limit coupling 14, are simultaneously driven at high speed by a motor 16, worm-gears 17 and slip-couplings 18, which, on encountering tightening resistance, slip and operate means, not shown, for energizing an hydraulic &c. motor 19 which turns the sockets at low speed through a rack 20, pinions 21 and previously over-running oneway clutches 13. Fig. 5, not shown, is similar to Fig. 3, but shows only one nut socket. The coupling 14 is formed by a torsion-shaft carrying the socket at one end, mounted inside the shaft 22 and drivingly connected to that shaft by a claw-clutch which is automatically disengaged at a predetermined torsional yield of the inner shaft, by contacts adjustably carried on the outer and inner shafts, respectively, and energizing a device, not shown, for releasing the claw-clutch and switching off the low-speed motor.
Patent GB-750880-A (GB)
Title: Improvements in or relating to push-pull frequency modulators
IPC: H03C3/40
Filed: 1954-07-09
Abstract: 750,880. Frequency modulation. PHILIPS ELECTRICAL INDUSTRIES, Ltd. July 9, 1954 [July 11, 1953], No. 20173/54. Class 40 (5). In a push-pull frequency modulator comprising an oscillator resonance circuit 3 and a pair of modulator reactance valves 1, 2 with anodes connected across the circuit 3 a single phase quadrature producing network 6, 7 common to the two modulator valves is connected to the grid of one modulator valve 1 and to the cathode of the other (the grid of the latter being earthed). The network may be a series capacitor 6 and resistor 7 energized from the circuit 3 through a phase inverting transformer. The control grid of the modulator 1 may be connected to an adjustable tapping of the resistor 7. The cathode resistor 8 of valve 1 and resistor 7 being equal produce equal negative feedback on the modulator valves 1, 2.
Patent GB-722464-A (GB)
Title: Abrasive blasting nozzle
Inventor: ALBERT GEORGE DOUGLAS
IPC: B24C5/04
Filed: 1952-08-11
Abstract: 722,464. Abrasive blasting. MEAD, W. H. Aug. 11, 1952, No. 20178/52. Class 60 A nozzle for air blasting with solid abrasive particles has an inlet section A, middle section B and outlet section C. The inlet section A has an extended S-shape longitudinal contour 15; the inside wall 14 of the feed conduit 10 is tangential to the contact at the inlet end of this section, so that abrasive passes from the conduit to the section without disturbance. The air stream is stated to accelerate smoothly in this section to a sub-sonic speed. The middle section B has a straight contour 16 and is preferably of constant bore; the contour at the inlet end of this section is tangential to the contour 15 at the outlet end of the section A. The air stream is stated to reach sonic speed in the section B. The outlet section C has an extended S-shaped longitudinal contour 19; the contour at the outlet end of the middle section B is tangential to the contour at the inlet end of section C. The contour at the outlet end of section C is substantially straight but of smaller crosssectional area than the inlet end of the nozzle. The air stream is stated to accelerate to supersonic speed in section C, the pressure falling to substantially atmospheric pressure at the outlet end, so avoiding a shock wave. A lining or coating 21 of hard, wear-resisting metal is provided. The bore at the inlet end of section A may be ¥ inch, that of the outlet end of section A, throughout section B, and of the inlet end of section C <SP>5</SP>/ 16  inch, and at the outlet end of section 0.4 inch; the lengths of sections A, B C may be 2¢ inches, ¥ inch and 2“ inches respectively.
Patent GB-891395-A (GB)
Title: Improvements in and relating to inserts for constructions of sheet metal or other sheet materials
Inventor: HOBBS DORAN KEMSLEY
IPC: F16B37/06
Filed: 1958-06-24
Abstract: 891,395. Anchor-nuts &c. TALBOT TOOL CO. Ltd. May 27, 1959 [June 24, 1958], No. 20186/58. Class 89(1). An insert with a plain or screwed base 10 has a countersunk head 2 for flush fitting with one side of a workpiece 9 and a stepped cylindrical shank 1, the larger diameter part of which is sheared by a cylindrical tool applied axially to form a head 6 abutting the other side of the workpiece. The underside of the head and/or the exterior of the shank at the sheared-portion may be roughened, e.g. by milling or knurling. The insert may be of metal or other material, e.g. a synthetic resin, in which case the tool and / or insert may be heated.
Patent GB-730474-A (GB)
Title: Method of producing benzene carboxylic acids or derivatives thereof
IPC: C07C51/265
Filed: 1952-08-12
Abstract: In a modification of the method of the parent Specification, alkyl aromatic alcohols not produced by oxidation of aromatic compounds are converted into their more readily oxidizable functional derivatives, and these are oxidized to benzene carboxylic acids.  In examples, chloromethyltoluene is converted by hydrolysis with alkali and heating the mixture in methanol or water under reflux to methyl benzylmethylether or dixylylether respectively, both of which on oxidation give toluic acid containing some dicarboxylic acid; p-toluyl alcohol is converted to the acetate with acetic anhydride and on oxidation gives toluic p  and p-oxymethyl benzoic acids. Other ethers of the aromatic alcohols with aliphatic alcohols and esters with aliphatic acids are also specified as suitable for the oxidation.
Patent GB-1451427-A (GB)
Title: Twin-engine overhung earth-moving scrapers
IPC: B60G9/00
Filed: 1975-05-14
Abstract: 1451427 Earth-moving bowl scrapers GENERAL MOTORS CORP 14 May 1975 [20 May 1974] 20302/75 Heading E1F [Also in division B7] In an earth-moving bowl scraper 10 having an overhung tractor 12 coupled to a trailing scraper bowl and the tractor and the bowl each having a single, driven, wheel-mounting axle assembly, the axle assembly of the bowl is rigid with the bowl whilst the axle assembly 36 of the tractor is coupled to the chassis 50 of the tractor by a suspension system 34 in which at least one support arm 38 is rigidly secured at its front end to the axle assembly 36 and is at its rear end pivoted to the chassis 50 so as to permit the assembly 36 to oscillate about a transverse axis 42, and spring means connected between the axle assembly and the chassis for cushioning movement of the axle about the axis 42, which is located below the axis 66 of the axle assembly. Preferably the suspension has two support arms and the spring means comprise a pair of piston cylinder units 52 in a hydraulic circuit including an accumulator and permitting of the units 52 having self levelling capabilities to maintain the axle assembly 36 at a desired height in accordance with the loading of the bowl. A transversely extending link is pivotally connected between the axle assembly 36 and the chassis 50 to limit lateral movement of the assembly.
Patent GB-1145774-A (GB)
Title: Illuminating apparatus for photographic printers, enlargers and the like
Inventor: SIMMON ALFRED
IPC: G03B27/54
Filed: 1966-05-09
Abstract: 1,145,774. Photographic copying apparatus. SIMMON BROS. Inc. May 9, 1966, No. 20411/66. Heading G2A. The invention is concerned with the type of copying apparatus in which light from one or more sources 13 is mixed in an integrating chamber 17, passing out through an exit window 18 to illuminate the negative which is being copied. A number of chambers 17 are provided, of different sizes, and having different sizes of exit windows, and these are interchangeable in the apparatus, so that the chamber may be chosen which is the most suitable for the particular size of negative to be copied. In the form shown, there are two light sources 13, each situated at one focus of an elliptical reflector 14, the other focus being at the entrance window 16 of the chamber 17. Colour filters and ultraviolet and infrared filters, 23-27, can be interposed in the light path when the apparatus is used for colour printing. The filter assembly housings 22, and the lamp and reflector assemblies 14, are slidably mounted on tracks (8, 9 Fig. 1 not shown) and can be secured thereto after the selected chamber 17 has been mounted in position. A system of grooves and ridges 37, 38 form light locks. The chamber 17 rests on a bottom plate 39 which has a rectangular exit window, and rests on a sheet 42 of opalized plastic or glass.
Patent GB-782142-A (GB)
Title: Improvements in or relating to optical scanning devices
Inventor: KIMBER RAYMOND ARTHUR
IPC: H04N3/04
Filed: 1955-07-14
Abstract: 782,142. Photo-electric scanning devices. MULLARD RADIO VALVE CO., Ltd. July 14, 1955, No. 20422/55. Class 40 (3). In apparatus for causing a line source of light to traverse an area under examination such as, for example, in Specification 773,494, an optical scanning device comprising a substantially rectilinear optical element moves along a circular path while maintaining its axis parallel to itself. In the arrangement of Fig. 1, light from source 5 is directed by mirrors 6 and lens 7 through cylindrical rod lenses 3 carried in planet gears rotating about a sun 11 and carried on a carrier 1 by hollow shafts 4. The carrier and sun are driven at such speeds by a motor 16 that as the planets are carried around the sun they do not rotate about their own axis. Thus a vertical line of light traverses horizontally across the scale 10 under examination. In a modification (Fig. 3, not shown), the drive is to the outside of the carrier and the gears are of split type with rubber couplings between the sections to take up backlash.
Patent GB-896471-A (GB)
Title: Improvements in or relating to rail pads
Inventor: HARDING FRANK HENRY
IPC: E01B9/68
Filed: 1958-06-25
Abstract: 896,471. Rail pads. JOHN BULL RUBBER CO. Ltd. May 22, 1959 [June 25, 1958], No. 20448/58. Class 104 (2). In a rail pad having projections 15 to locate the pad relative to a sleeper 17 the projections are confined to the undersurface of the pad within, and spaced from, the periphery of the undersurface. Two or more projections or buttons 15 provided on the undersurface of the pad engage holes 16 in the top of the sleeper 17. The buttons 15 may be mushroom-shaped, conical, Fig. 5 (not shown), or as shown in Fig. 6 of cruciform shape arranged to engage similar shaped grooves in the sleeper 17. A deformable strip 11 of semi-circular or triangular configuration and preferably integral with the pad, extend around the marginal edge of the top and/or the bottom surface of the pad. The strip 11 may be at the extreme edge of the pad or slightly inwardly thereof. The strips on the top and bottom surfaces of the pad may be aligned or offset. Grooves 12, 13 of arcuate, triangular or flat-bottom cross-section may be provided on the top and bottom surfaces of the pad. The grooves 12 on the top surface of the pad are arranged at right-angles to the grooves 13 on the bottom surface of the pad. If the pad is devoid of grooves on the top surface the bottom surface may have two sets of parallel grooves arranged at right-angles. Alternatively the bottom surface may be devoid of grooves and the top surface provided with grooves.
Patent GB-1015912-A (GB)
Title: Improvements in and relating to vapour generators
Inventor: HEATHCOTE JOHN
IPC: F22B1/08
Filed: 1962-05-28
Abstract: 1,015,912. Heating steam boilers by hot liquids; superheaters. FOSTER WHEELER Ltd. May 20, 1963 [May 28, 1962], No. 20507/62. Heading F4A. A vapour generator comprises a vertical casing 10 having a removable closure 14 at the upper end and having within it, providing the heating surface, a number of clusters 24 of U-tubes 26 the two sets of legs of which are connected respectively to inlet and outlet manifolds 28 disposed at the upper end of the casing, each manifold serving only one tube cluster and being connected, as appropriate either to an inlet 20 to or an outlet 22 from the casing at its upper end for the fluid being heated. A cross-section of a cluster of tubes is shown in Fig. 2. The inlet and outlet pipes 20, 22 pass through the closure 14 so that the tube assembly and the closure may be removed as one unit. The heating liquid which may be a liquefied metal such as sodium or pressurized water is contained in an inner casing 12 with an inlet 18 and an outlet 16 for the heating liquid, the level 32 of which is maintained below the manifolds 28 and inlet and outlet pipes 20. 22, 30. The space between the casings 10 and 12 and the space 34 above the heating liquid are filled with an inert gas such as nitrogen. The vapour generator may have a number of inlets and outlets for the heated liquid to which U- tube clusters are connected to provide several independent circuits. The casing may be partitioned to allow the heating liquid to flow in series over the groups of U-tube clusters belonging to different circuits or connected in series through headers, to provide economizer, steam generating and superheating sections.
Patent GB-314687-A (GB)
Title: Improvements relating to apparatus for delivering liquids in measured quantities by volume
IPC: C25D3/12
Filed: 1928-07-14
Abstract: 314,687. Moorhouse, A. H., and Moorhouse & Co., Ltd., S. July 14, 1928. Fixed-chamber apparatus.-In apparatus having a measuring- container b with an overflow pipe a, the base of the container through which the liquid is supplied and discharged serves also as an overflow connection to the pipe a, which is fitted with a sight glass f for observation of the overflow. The pipe a is screwed into a fitting d formed with a passage g for directing the overflow towards the glass f, and with a branch h for returning the overflow to the supply tank. The supply and discharge passages of the container are arranged at the sides of the overflow compartment e. Washers c for calibrating the capacity of the container are carried on the pipe a.
Patent GB-675869-A (GB)
Title: Rate of pressure change control mechanism
IPC: B64D13/04
Filed: 1949-08-08
Abstract: 675,869. Fluid-pressure servomotor-control systems. GARRETT CORPORATION. Aug. 8, 1949 [Feb. 24, 1949], No. 20550/49. Class 135. A pressure control mechanism comprises pressureresponsive means, means for adjusting the response characteristics thereof, further means for actuating the adjustment means, and means responsive to the speed of operation of the actuating means for controlling the operation thereof, and, thereby, controlling the rate at which the adjusting means is operated. The invention is described with reference to a system for controlling the pressure in an aircraft pressure cabin similar to that described in Specifications 650,766 and 655,601. Air is supplied to the cabin 10 by a supercharger 11, the air pressure being regulated by escape of air through an outlet 13 under the control of a regulator including balanced valves 19, 20 and barometric capsules 37, 34 in a control chamber 15, the capsule 34 being subjected to the action of a tension spring 42, the loading of which as described in Specification 650,766, may be varied by a screw-and-nut 44, 45 operated by an electric motor 50, to gradually change the datum loading and response of the capsule 34. According to the invention, the electric motor 50 is controlled by a centrifugal governor 54, the speed of rotation of which, and thus the rate of variation of cabin air pressure, is controlled by setting a knob 67 the end of which carries a plunger 60 engageable with an annular disc 59, increase and decrease of governor speed causing separation and engagement of the contacts 59, 60 to regulate the speed of the motor 50. The direction of rotation of the motor is controlled by a second knob 80 according to whether increase or decrease of cabin pressure is desired, and the position of the knob can be pre-selected in order that one of two switches 75, 76 may be opened to stop the motor 50 when a predetermined pressure is obtained in the cabin. The regulator mechanism may be of the type described in Specification 664,143.
Patent GB-983425-A (GB)
Title: Plastic container for liquids, especially beer-barrel with lateral bung-hole
Inventor: LOWER HELMUT
IPC: B65D8/08
Filed: 1961-06-08
Abstract: 983,425. Container closures. A.G.K. FUR KUNSTOFFPRODUKTE A.G. June 8, 1961, No. 20663/61. Heading B8T. A plastics container, e.g. a beer barrel, has a lateral bung-hole 4 in a sleeve 3 surrounded by a reinforcing ring 5 screwed to the sleeve 3. A flattened part 2 of the barrel wall is filled in, up to the usual contour of the barrel, by a shim 6. In a modification, Fig. 2 (not shown), a metal ring may reinforce the sleeve 3 on the inside.
Patent GB-453668-A (GB)
Title: Improvements in or relating to means for indicating the air pressure in pneumatic tires of motor vehicles or the like
IPC: B60C23/06
Filed: 1935-07-20
Abstract: 453,668. Pneumatic tyres. BETULANDER, G. A., 42, Birger Jarlsgatan, Stockholm. July 20, 1935, No. 20717. Convention date, Feb. 9. [Class 144 (i)] A device for signalling fall of pressure in a vehicle tyre comprises a visual indicator flexibly connected to the front and rear axles and actuated by relative angular (vertical) displacement of the axles. In the form shown in Fig. 1, brackets b<1>, b<2> connected to the axles a<1>, a<2> are fitted with ropes &c. l<1>, l<2> passing over pulleys W<1>, W<2>, the spindles C<1>, C<2> of which are fitted with pointers V<1>, V2 respectively. Failure of a tyre causes relative displacement of the pointers. In the modification shown in Fig. 2, a single pointer V is carried by the spindle S of a pulley W<3> over which are trained ropes &c. r<1>, r<3>-r<2>, r<4> connected to the ropes l<3>, L<4> extending from the ends of the axles b<1>, b<2>. To damp actuation of the signalling-device through axle displacements caused by road irregularities, dashpot devices may be fitted, e.g. as shown in Fig. 2, springs f<1> ... f<4>, Fl<1> ... Fl<4> may be fitted in the flexible transmission elements.
Patent GB-335644-A (GB)
Title: Improvements in and relating to automatic temperature recording devices
IPC: G01K1/02
Filed: 1929-07-06
Abstract: 335,644. Ocean Steam Ship Co., Ltd., and Thornton, R. H. July 6. 1929. Photographic recorders.-A device for recording temperature particularly for use in ships' holds throughout the duration of a voyage comprises means for projecting, at predetermined times, a shadow-graph of a thermometer on to a sensitized surface driven bv clockwork and a switch mechanism operated by the clockwork to connect the illuminating means to a source of potential and to maintain the connection for a period to give the necessary exposure. As shown in Figs. 1 and 4, a casing A is closed by an airtight cover A<1> secured by studs e<2> and nuts a<4>, the nuts being located in recesses a<3> fitted with a sleeve a<5> closed by a seal to prevent tampering. Access can be attained by an authorized person inserting a key to engage and unlock the nuts. A part a<8> of the casing supports a thermometer B and an inner casing C in which is pivotally mounted a record drum D. The interior of the part a<8> is open to the atmosphere and the thermometer is protected by a perforated shield a <12>. The drum D has a hub d<4> with a conical portion bearing on a corresponding sleeve d<3> fixed to a spindle d<1> driven by a. clockwork mechanism E. The record strip of bromide-paper is wrapped round the drum the end being passed through a longitudinal slit d', Fig. 6, and under spring clips d<8>. An extension of the hour spindle e<1> of the clock carries an indicating pointer e<2>. cooperating with a scale plate e<3> to indicate the period that must elapse before the next record is made. Any suitable clock-actuated switch mechanism may be employed to complete the circuit of a lamp F connected to a dry cell battery G both mounted on a removable unit constituted by a back plate f<3> slidable in guides f<5>. The switch contacts are connected to terminals T<1> which in turn are connected by flexible leads to insulated battery and lamp terminals on the plate f<3>. The rays from the lamp pass through a ground glass screen f<1> and through a slit formed hy adjustable screen plates b<1>, b<2>, mounted on a frame c<3>. The battery circuit is normally open and is adapted to be closed by a master switch S operated by a screw stud s<1> to which access is obtained by the removal of a plug s<3> In order to maintain the air within the apparatus dry a metal cap h<1>, Fig. S, secured to the frame C has screwed thereto a container h<4> in which is inserted a muslin bag H containing a suitable drying mixture that may be changed periodically by removal of the plug h<5> without interfering with the operation of the apparatus.
Patent GB-1184986-A (GB)
Title: Devices for Dispensing Heated Fluids for Pressurized Dispensing Containers
Inventor: BURNE FREDERICK A
IPC: A45D27/02
Filed: 1968-05-02
Abstract: 1,184,986. Dispensing liquids by gaseous pressure. OLIN MATHIESON CHEMICAL CORP. May 2, 1968, No.20833/68. Heading F1R. A pressurized dispensing container, e. g. for shaving lather, has a heat-exchanger mounted on its discharge valve stem comprising a metal casing 17 with a crimped-on top 18 and an insert 11 of sintered porous metal, e. g. sintered aluminium particles, a barrier member 15 being located over the inlet 21 to direct lather discharged from the container through porous insert 11 to an outlet 26. The heat exchanger is heated by holding it under running hot tap water. Member 15 may be solid or hollow and may be of aluminium or copper. In Fig. 3 (not shown), member 15 is of reduced diameter and located in central passage 13 of insert 11, and a ring member surrounds the insert. In Fig. 4 (not shown), central passage 13 comprises a recess, the closed end of which is sealed by burnishing, or by a coating. A removable or fixed cap, Fig. 1 (not shown), may be provided on the container over the heat-exchanger, and may have inlet and outlet openings for heating water.
Patent GB-683276-A (GB)
Title: Improvements in and relating to refrigerator breaker strip assemblies
IPC: F25D23/08
Filed: 1951-09-04
Abstract: 683,276. Refrigerators. BRITISH THOMSONHOUSTON CO., Ltd. Sept. 4,1951 [Sept. 20,1950], No. 20860/51. Class 29 The breaker strip connecting the inner and outer walls 2, 3 of a refrigerator casing or door comprises a pair of horizontal strips 19, along the top and bottom of the inner wall 3, a pair of vertical strips 21 extending along the sides, and means for securing these strips to the inner wall, the ends of one pair of strips including return bent flanges 23 in which engage tongues 24 on the other pair to interlock the strips. The inner wall 3 is spaced from the outer wall by supports 6 bolted to corner pieces 4 and has spaced holes 16 into which take studs 17 moulded integrally with the breaker strips, fasteners 18 being forced over the ends of the studs. A gasket 10 is secured to the outer wall 2 by a retainer 11 and overlaps the outer edge 15 of the breaker strip assembly. Grooves 29 are provided in the breaker strips parallel to the joint. The strips are preassembled on the inner wall and the assembly mounted on the outer wall by bolts 7 accessible through openings closed by plugs 32.