baber/WOPTO huggingface dataset:
Patent GB-431938-A (GB)
Title: Improvements in recoil operated small arms
IPC: F41A3/34
Filed: 1934-01-12
Abstract: 431,938. Automatic smallarms. CHEVALLIER SELF-LOADING FIREARMS, Ltd., 7, Union Court, Old Broad Street, London, CHEVALLIER, A. L., and SANDERS, T. F., 238, Berwick Avenue, Slough, Buckinghamshire. Jan. 12, 1934, No. 1233. [Classes 92 (ii) and 119] Relates to smallarms in which the breech bolt is locked by a transversely sliding locking member itself locked by a longitudinally movable inertia member, for example as in Specification 400,588. According to the invention, the locking member has at least one abutment facing rearwards to engage a corresponding abutment on the fixed part of the gun and an abutment facing forwards to engage a corresponding abutment on the bolt, and is so connected to the inertia member as to be moved transversely to unlock the breech when the inertia member moves forward relatively to the gun. The inertia member is in the form of a cover 8, shown in inverted plan in Fig. 9, with oblique slots 9 guided by studs 10 on the receiver 1 and with longitudinal grooves 16, 18 in engagement with lips 15, 17 respectively on lugs 13 on the locking member 12, and on the front end of said member, which is shown in plan in Fig. 12. The lugs 13 are guided by vertical notches 14 in the receiver ; and, in the locking position, the front face 19 of the locking member engages behind a shoulder 20 on the breech bolt 7, which is guided by wings 6 in longitudinal grooves 5 in the receiver. A transverse plate 22 is mounted in the grooves 16 behind the locking member 12 and is held in place by a latch 23 hinged to the cover 8. A spring 29 is interposed between the locking member and the plate 22 and serves to return the cover to the locking position. The forward stroke of the cover is limited by a stop 30, which can be released by a catch 32 and moved out of the way to permit the removal of the cover, after which the stop may itself also be removed. Three safety devices are provided one safety is a bent lever 34, which blocks the path of the firing-pin 40 until depressed by the cover 8 when this reaches the locking position. Another safety is a notched disc 44 which blocks the path of the sear 47 until an arm 42 on the disc is rocked and depressed by the cover 8, when this reaches the locking position. The third safety is an L-shaped spring arm 57, the end 59 of which locks the hammer 41 when the arm 57 is deflected by a cam 56 on a lever 54 when this is turned forward by hand. Another cam with a handle is provided on the other side of the cover to lift the cover up for hand loading. The receiver 1 is hinged at 3 to the trigger guard 2, and is fastened by a lock 4 at the rear end.
Patent GB-768866-A (GB)
Title: Improvements in compression-ignition internal combustion engines
IPC: F02B19/14
Filed: 1955-01-14
Abstract: 768,866. Combustion chambers. BARBISAN, L. E. Jan. 14, 1955 [Jan. 22, 1954], No. 1266/55. Class 7 (3). In a compression-ignition engine having a fuel injector 6 and a cylindrical combustion chamber 4 which is machined in the cylinder head 2 and arranged with its axis ST inclined to the longitudinal axis of the engine cylinder 10, a passage 8 extends from the latter and opens tangentially into the chamber 4. A cylindrical recess 1 in the cylinder head 2 has a plug 3 inserted therein to form the cylindrical chamber 4; an electrical igniter 5 extends through the plug intc the chamber 4. The fuel injector axis XY is disposed at right angles to the axis ST and at an angle 9 to a plane perpendicular to the cylinder axis, whict angle may vary between one engine anc another; the angle 9 is equal to the angle subtended by the axis ST relative to the longitudinal cylinder axis. In various modifications, the injector axis may intersect the cylinder axis, and the hot spot of the combustion chamber, against which the fuel is injected, is surrounded by a part of the engine cooling water jacket, not shown, or arranged near the exhaust passage; the axis of the passage may intersect or pass near to the cylinder axis. The communication between the combustion chamber and passage may consist of a slot or a plurality of holes in the chamber wall.
Patent GB-753018-A (GB)
Title: Electric switch operable by deformation of the housing
IPC: H01B7/10
Filed: 1954-01-15
Abstract: 753,018. Retractive switches. SPECIALTIES DEVELOPMENT CORPORATION. Jan. 15, 1954 [May 8, 1953], No. 1272/54. Class 38(5) A switch comprises three flexible-conducting strips 10, 11, 12 separated from each other by two series of rubber pads 14, 15, the pads being rhombic-shaped and those of one series being positioned opposite the spaces between those of the other series. A rubber-housing 16 receives the strips the outer two 10, 12 of which are connected together so that in deformation of the housing to engage either of the outer strips with the centre strip 11, an alarm 25 is sounded. Actual dimensions of the switch parts are given in the Specification. Specifications 692,015 and 692,020 are referred to.
Patent GB-1176621-A (GB)
Title: Improvements in or relating to Reciprocating Hydraulic Pumps or Motors
Inventor: SCHMIDT JOHANNES
IPC: F01B1/06
Filed: 1968-01-09
Abstract: 1,176,621. Recipricating pumps and motors. INDUSTRIEWERKE KARL-MARX-STADT VEB. Jan. 9, 1968. No.1287/68. Heading F1A. In a radial cylinder or axial piston pump or motor the angular spacing of the cylinders about the axis is unequal and the pistons are of different cross-sectional areas and/or have different stroke volumes. The angular spacing is obtained from the product of half the sum of the active areas of adjacent pistons or half their stroke volume and 360 degrees divided by the sum of the active areas of all the pistons or their total stroke volume respectively.
Patent GB-141786-A (GB)
Title: Improvements in or relating to pumps or the like
IPC: F04B1/02
Filed: 1919-01-18
Abstract: 141,786. Browning, A. G. Jan. 18, 1919. Pistons.-The bucket piston B<1> of a pump &c. carries a number of cylirdrical projections L adapted to slide between similar projections J on the cylinder B to form a labyrinth packing. The spaces between the projections may have one or more relief valves and one or more lubricating ducts J<1>.
Patent GB-976678-A (GB)
Title: Improvements in or relating to electron beam furnaces
IPC: C22B9/22
Filed: 1963-01-14
Abstract: 976,678. Electron beam apparatus. STAUFFER CHEMICAL CO. Jan. 14,1963 [Jan.15, 1962], No. 1506/63. Heading H1D. In an electron beam furnace one or more elongated electron guns 25 project ribbon - shaped beams 24 through slits 44 in shield member 40 into barrelshaped magnetic fields produced by magnets 30, the magnetic fields serving to converge and reduce the widths of the beams while curving them on to the surface 16a of the material to be treated, as shown dripping into a mould 12. The magnets 30, one for each beam, are U-shaped with converging polepieces 32. The ends of the polepieces are also rounded. The shield 40 forms the bottom of a heat shield 48 which is provided with windows 56 to aid in the pumping of the apparatus. The windows 56 are provided with vapour condensing and heat conserving vanes or baffles 58. The shield 40 and the polepieces 32 may be water-cooled. The shield 40 is at the potential of the anode 28. The cathode filaments 26 may be elongated rods or hairpin shaped.
Patent GB-489171-A (GB)
Title: Improvements in paint and like mixing and grinding machines
IPC: B02C17/16
Filed: 1937-01-19
Abstract: 489,171. Grinding and mixing paints &c. LANGSDORF, W. Jan. 19, 1937, No. 1600. [Classes 59 and 86] A machine for mixing and grinding paint &c. comprises an annular hollow guide body b, an impeller f for circulating the material around the body and a perforated chamber c arranged in the path of the material being treated and containing steel &c. balls agitated by a rotary member e. As shown the rotary worm-shaft e agitates balls d in the perforated grinding casing c, the casing being arranged in a chamber a provided with the guide body b which is hollow and forms a heating or cooling chest connected by a pipe g. Circulation of the medium is effected by the impeller f mounted on the wormshaft e or on a separate shaft. The grinding casing may be lined with china &c. or replaceable linings may be used. In addition to the rotary worm a plain or laminated spring of S-shape may contact with wedge-shaped projections on the casing or looped springs may be used, each loop being traversed by an adjusting member to vary the pressure of the spring on the casing. Alternative arrangements also comprise a bar on the drive shaft provided with springs adapted to contact with the cover of the casing, or several bars may be used having spring elements adapted to co-operate with a tier of grinding discs surmounting the grinding chamber. Further, integral or jointed arms with impact members may be pivoted on a collar on the shaft for impact against rigid or resilient projections on a surrounding surface. Rollers may be fitted to an arm on the shaft and contact with the grinding chamber c.
Patent GB-1065941-A (GB)
Title: Improvements in or relating to telephone systems
IPC: H04B3/40
Filed: 1965-01-14
Abstract: 1,065,941. Transmission line impedance compensation. SIEMENS A.G. Jan. 14, 1965 [Jan. 15, 1964], No. 1602/65. Headings H4K and H4R. A four-terminal attenuator network for automatically compensating for differences in line impedance has non-linear positive temperature coefficient resistors K in the series paths which by biasing diodes D by an amount depending on the line current flowing in them vary the shunt resistance of the network. A symmetrical circuit. as shown in Fig. 1 is suitable for siting near the exchange, but near to a subscriber sub-set an asymmetrical circuit is used obtained by omitting one of the series resistors K and one set of shunt diodes D, Fig. 2 (not shown). In another arrangement of an asymmetrical circuit (Fig. 3, not shown) the remaining shunt diodes may be replaced by a negative temperature coefficient resistor having a heating coil in the free series path. In the arrangement of Fig. 1 the diodes may be replaced by negative temperature coefficient resistors.
Patent GB-620445-A (GB)
Title: Improvements in primary electric cells
IPC: H01M6/08
Filed: 1947-01-17
Abstract: 620,445. Batteries. BURNDEPT, Ltd., RICHARDSON,. R. P., and LEWIS, R. W. Jan. 17, 1947, No. 1634. [Class 53] A dry cell is provided with a hole 14 in the zinc container for the escape of gas. The cell is enclosed in a plastic sheath 8 through which gas may diffuse. The hole 14 may be made in an annular groove 6 in the container. The sheath 8 surrounds the upper rim of the container and insulates it from a metal closure 11 which makes contact with the carbon electrode 3. The margins of the sheath are secured by adhesive tc the zinc container, Specification 612,086 is referred to.
Patent GB-933939-A (GB)
Title: A method of manufacturing the hulls of boats
IPC: B63B5/24
Filed: 1961-01-14
Abstract: 933,939. Boat construction. A. J. DAVIES. March 28, 1962 [Jan. 14, 1961], No. 1651/61. Class 113. A boat or dinghy comprises plywood sections shaped to form a side 11 of the hull, the bottom or a half 12 thereof and a transom 13, assembled and moulded on a former and united by means of synthetic resin impregnated glass fibre tapes 14, 15 applied to the lines of juncture of the sections to form the hull. Tapes may also be used to fit thwarts 16, Fig. 5, ribs and longitudinal reinforcing members. Floor boards may be fitted, and a decking and capping 23, Fig. 9, moulded in one piece from polyester fibre glass laminate may be attached.
Patent GB-725664-A (GB)
Title: Improvements in interferometers
IPC: G01N21/45
Filed: 1953-01-20
Abstract: 725,664. Interferrometers. L.K.B.-PRODUKTER FABRIKS AKTIEBOLAG. Jan. 20, 1953 [Jan. 21, 1952], No. 1658/53. Drawings to Specification. Class 97 (1). In a Rayleigh interferometer to increase the brightness of the fringes the first single light source slit is replaced by a raster comprising a great number of mutually parallel slits formed by lines of constant thickness spaced a constant distance apart and satisfying the equation Gde = mD# where G is the magnification factor of the imagery of the raster on the observation plane, d is the distance between the centres of the sections of the two interfering beams measured in a plane perpendicular to the optical axis, e is the distance between the centres of the raster lines, D is the optical distance between the double stop and the observation plane of the interferometer, #is the wavelength of the light and m an arbitrary positive integer. By this means the interference fringes produced by the various slits of the raster coincide to give increased brightness. The interferometer may be used to record refractive index gradients and combined with a modified Schlierin arrangement for recording the derivative of the gradient as described in Specification 694,894.
Patent GB-1349241-A (GB)
Title: Friction welding brake system
IPC: F16D65/28
Filed: 1972-01-14
Abstract: 1349241 Welding by pressure NORTH AMERICAN ROCKWELL CORP 14 Jan 1972 [27 Jan 1971] 1814/72 Heading B3R Friction welding apparatus comprises brake means operable to arrest rotation of the driven workpiece in a first normal mode of operation or in a second emergency mode of operation which brings the workpiece to rest more rapidly. As described the machine is for welding two wheel bearing end sections 11, 13 to an axle housing centre section 12 the latter being held stationary in the machine while the end sections 11, 13 are rotated. Pneumatically controlled disc brakes 48, 69 are provided for arresting the drive trains to the sections 11, 13 and in the normal welding cycle build-up of pneumatic pressure to the brakes is controlled by an adjustable flow control valve 90; in emergency operation a by-pass valve 98 is opened to allow substantially instantaneous application of pressure to the brakes.
Patent GB-1313828-A (GB)
Title: Slewing jib crane
IPC: B66C23/84
Filed: 1972-01-14
Abstract: 1313828 Jib cranes G FUCHS and U THIERER 14 Jan 1972 [14 Jan 1971] 1841/72 Heading B8B A mobile jib crane, Fig. 1 (not shown), has its jib (5) mounted for luffing on an upper carriage 3 slewed by a ring gear 2. The jib (5) is luffed by a pair of rams (16), (16a) the cylinder bodies 15, 15a of which are supported by respective rollers 12, 12a running on a ring 17 mounted on the chassis 1. The rollers 12, 12a are carried by forks 11, 11a attached to square members 9, 9a freely, but non-rotatably, mounted for axial movement in square apertures 8, 8a in projections 7, 7a of the upper carriage 3. The rams (16), (16a) are pivoted through bearing pins 14, 14a to the members 9, 9a at ball joints 13, 13a. The two members 9 may be replaced by a single bolt (not shown) or the jib (5) may be mounted on the members 9, 9a.
Patent GB-157986-A (GB)
Title: Improvements in gyroscopic compasses
IPC: G01C19/38
Filed: 1921-01-12
Abstract: 157,986. Thompson, H. H. Jan. 15, 1920, [Convention date]. Mercury interrupters; gravity switches.-A gyroscopic compass is provided with means responsive tb tilting of the casing for bringing into action means for exerting an orienting torque around the horizontal axis and also a damping torque around the vertical axis. In the form shown in Fig. 1 in which pendulous control is produced by a horizontally-pivoted bail 10, the casing 1, which is preferably slightly pendulous about its trunnions 5, carries arms 13 on which are mounted levels 14, 15 which contain electrically-conducting liquid of high viscosity so that the levels are only responsive to long-period oscillations. There is no mechanical connection between the casing 1 and the bail 10, but the casing carries an electromagnet 9 co-operating with an armature 12 on the bail. The circuit of the electromagnet is arranged as shown in Fig. 3 so as to be completed when the liquid in the level 15 is displaced on the occurrence of a tilt of the casing. Completion of the circuit causes the bail to rise with the casing, and, owing to the magnet 9 being mounted eccentrically, torques are exerted about both the horizontal and the vertical axes. The liquid level may be replaced by a damped pendulum mounted on the casing and co-operating with fixed contacts thereon. In a modification, the torques are produced by inclined air jets normally covered by pivoted shutters which may be moved electromagnetically, the currents to the magnets being controlled by the movements of liquid contained in a pair of vessels on the gyocasing, the vessels being connected by a fire tube. A similar arrangement of liquid-containing vessels may replace the level 15, Fig. 1. Reference has been directed by the Comptroller to Specifications 166,570 and 166,571, [both in Class 97 (iii), Thermometers &c.].
Patent GB-551366-A (GB)
Title: Improvements in the manufacture of dipped rubber articles
IPC: B29C41/14
Filed: 1942-02-13
Abstract: 551,366. Moulding rubber by dipping. INGRAM, G. Feb. 13, 1942, No. 1940. [Class 87 (ii)] A former for moulding necked rubber articles comprises an envelope of flexible sheet material and resilient or collapsable bracing means contained within the envelope and mounted on a rigid manipulating stem passing into the envelope. Prior to, during, or after insertion into the dipping bath, the envelope is distended or expanded, as by the bracing means only or by the bracing means supplemented by air under pressure, and after withdrawal from the bath the envelope is collapsed, as by collapse of the bracing means and release of air. Three examples are given :- (1) (Fig. 1). The envelope 10 is of oilskin, rubber, waxed paper or proofed fabric. The bracing means comprises strips 16 of whalebone or springy metal which are secured by a T-piece 13 to a hollow stem 12 having holes 19 for the passage of air. The inner surface of the envelope is serrated to assist in retaining the strips 16 in the T-piece. A collar adjustably mounted on the stem may constrain the upper ends of the strips 16 to a particular contour. (2) The strips 16 are replaced by hollow inflatable curved closed-end rubber tubes, the stem being unperforated or being perforated but having an inner tube for inflating the curved tubes. (3) The bracing means may consist of a single strip or rod passed through the T-piece and centrally anchored therein. The framework may comprise one hoop or several arranged in different planes.
Patent GB-750945-A (GB)
Title: Improvements in and relating to latch mechanisms
IPC: E05C3/40
Filed: 1954-01-22
Abstract: 750,945. Latch fastenings. CHICAGO FORGING & MANUFACTURING CO. Jan. 22, 1954 [Aug. 31, 1953], No. 1993/54. Class 44. In a latch mechanism for releasably securing the bonnet-hood to the bonnet of a motor vehicle comprising a keeper 7 mounted on either the hood or the bonnet which is arranged to penetrate a hole 16 in a support plate 15 carried by the bonnet or hood and to be held there by a spring-loaded latch 61 which engages a part 31 of the keeper and holds it against withdrawal from the hole, the keeper is provided with an enlarged portion 30 which is arranged to pass through the hole in the support plate, means being provided for guiding the enlarged portion as it approaches and passes through the hole 16, the said guide means comprising a plate 36 spaced from the support plate and having a hole 50 which is penetrated by a part 35 of the keeper before the enlarged portion has entered the hole 16 in the support plate 15. As shown, the mechanism is intended for an alligator-type hood. The part 35 is a cylindrical extension of the keeper and the hole 50 is elongated, but only slightly greater in width than the keeper. The hole 50 is arranged with its length longitudinally of the vehicle so that the keeper and hence the hood is guided laterally. The latch 61 is pivoted to the plate 15 and is connected for remote operation through linkage. A spring-loaded safety hook is provided. Specifications 610,697 and 666,029 are referred to.
Patent GB-1049391-A (GB)
Title: Convertible furniture
Inventor: HALL WILLIAM JOSEPH
IPC: A47C17/207
Filed: 1963-01-17
Abstract: 1,049,391. Bed settees; seat adjustments. W. STEEL & CO. Jan. 17, 1964 [Jan. 17, 1963], No. 2092/63. Heading A4J. A bed-settee comprises a folding section 3 adapted in the seat position to overlie a centre section 1 supported on legs 2, the folding section 3 being provided with arms 18 which, in the bed position support the folding section 3. The arms 18 may be detachable, the section 3 being provided with a leg member 22 forming alternative supporting means. A further section 4 is pivotally connected to the centre section 1 and is adapted to be swung from a backrest position to a horizontally extending position. A folding leg 16 is carried on the section 4 to support the section in its horizontal position. The backrest section 4 is pivotally supported on a plate 10 by means of a stud 11 sliding in an inclined slot 12, a pin 14 secured to the section 4 being engageable with indentations 13 in the plate 10 to provide various inclinations. The arms 18 are outwardly spaced from the sides of the section 3 so that the backrest section 4 can be folded to lie between the arms 18.
Patent GB-1068915-A (GB)
Title: Improvements in or relating to guillotines
Inventor: BARNES CHARLES HAYDEN
IPC: B26D7/02
Filed: 1965-01-18
Abstract: 1,068,915. Cutting apparatus. EDWARD DOHERTY & SONS Ltd. April 15, 1966 [Jan. 18, 1965], No. 2095/65. Heading B4B. [Also in Division F2] A guillotine is provided with a work-holding member 20 which is spring-loaded away from its holding position and movable into that position against the action of the spring by a press-bar 36. The holding member is L-shaped in cross-section, the bottom flange 22 being lined with sponge rubber and provided with arms 26, 28 for pivotal movement in side frames 30, 32 under the influence of one or more spring-loaded plungers (34), Fig. 3 (not shown), acting underneath the flange. The press-bar is also pivoted to the side frames and is arranged to bear down on the arms 26, 28 of the holding member when depressed by the operator. In an alternative arrangement, the press-bar may be attached directly to the holding member well clear of the blade 14. The upright leg of the holding member forms a shield to prevent injury to the operator's hands; a further shield 42 supported by a metal band 44 may also be provided on the other side of the blade.
Patent GB-561723-A (GB)
Title: Process of purifying 3-picoline
Inventor: CISLAK FRANCIS EDWARD
Filed: 1943-02-09
Abstract: 3-Picoline is purified from 4-picoline and/or 2,6-lutidine by heating with an oxide, oxyhalide or halide (chloride, bromide, or iodide) of sulphur or phosphorus, whereby the impurities are converted to complex non-volatile products and the 3-picoline may be separated as by distillation.  Examples are given of the use of chlorosulphonic acid, phosphorus oxytrichloride, sulphur monochloride and sulphur dioxide.  Other reagents which may be used are phosphorus trichloride, pentachloride, tribromide, triiodide, and pentoxide, sulphur trioxide, sulphuryl chloride and thionyl chloride.
Patent GB-818513-A (GB)
Title: Improvements in or relating to filters for gases
IPC: B01D39/18
Filed: 1958-01-22
Abstract: 818,513. Gas filters. GENERAL MOTORS CORPORATION. Jan. 22, 1958 [Feb. 13, 1957], No. 2165/58. Class 8(2). [Also in Group VIII] In a combined air cleaner and silencer comprising an inward flow tubular filter element 20 of paper and having axially extending radial pleats supported by outer and inner metal screens 18, 19 the element is made up of an inner sheet 21 backed by a sheet 23 secured face to face therewith and of less porosity and of greater structural strength, lesser dust retaining capacity and greater dust separating efficiency. The unit so formed is located in the annular space formed by inner and outer walls 12 of a casing 11 having an air inlet chamber 13 to effect silencing.