baber/WOPTO huggingface dataset:
Patent GB-1366139-A (GB)
Title: Pipe couplings
IPC: F16L21/00
Filed: 1972-06-30
Abstract: 1366139 Pipe coupling sleeves HEPWORTH IRON CO Ltd 30 June 1972 [1 April 1971] 8788/71 Heading F2G A pipe coupling sleeve comprises a generally cylindrical member having circumferentially spaced slits extending axially from each end and covered by resilient material spanning the slits to form scaling rims inside the ends of the cylindrical member. In one form, a metal, e.g. carbon steel sleeve Z has axial slits 3 at each end and a complete covering of resilient material e.g. polyurethane or ethylene vinyl acetate, forming sealing rims 5. An integral flange 6 acts as a stop for the end of an inserted pipe. The sleeve 2 is made from strip slit from two opposite edges, bent to cylindrical shape, and seam welded at 7. In one modification, the slitted ends are curved slightly inwards and then outwards, to provide clearance for angular misalignment of the connected pipes, Fig. 3 (not shown), and the integral flange 6 is replaced by a plastics ring (9) lodged in a circumferential groove (8) extending around the centre line of the sleeve. In another modification, the slitted ends of the sleeve are bent so as to extend into the sleeve, and the ring (9A), Fig. 4 (not shown), is formed of metal coated with plastics. In another form, the sleeve (1C), Fig. 5 (not shown), is of relatively rigid plastics, e.g. P.V.C., with an integral central flange. In a further modification of this form, the integral central flange is replaced by an inward depression (12), Fig. 6 (not shown), extending circumferentially around the centre of the sleeve and allowing some flexibility between the slitted ends. The slits 3 may, as shown, extend only a short distance into the sleeve 2, or they may extend nearly to the centre of the sleeve, Fig. 7 (not shown), or they may be circumferentially offset and extend beyond the centre line of the sleeve so that they interdigitate.
Patent GB-361780-A (GB)
Title: Improvements in or relating to air heaters
IPC: F28D9/00
Filed: 1931-03-23
Abstract: 361,780. Plate heat exchangers. HARTMANN, E. and HARTMANN, M., (trading as HARTMANN, M. & E.), Freital, Saxony, Germany. March 23, 1931, No. 8846. Convention date, April 14, 1930. [Class 64 (iii).] In an air heater constructed of parallel plates a the edges b of which are bent in one direction while the adjacent edges c are bent in another, so that by fitting together a number of plates, meeting edges can be welded to form parallel passages between the plates alternating with similar passages at rightangles, the transition of the bending over of one edge to the oppositely directed bending of the adjacent one takes place gradually in the material which is not incised or cut out. Plates d are inserted to fill in the corner sections between the plates that cannot be directly joined.
Patent GB-634065-A (GB)
Title: Improvements in or relating to dry shaving apparatus
IPC: B26B19/16
Filed: 1948-03-25
Abstract: 634,065. Dry shavers. BARSCH, G. March 25, 1948, No. 8873. Convention date, June 17, 1947. [Class 131] In a dry shaver, having one or more cutting members and one or more abrading members mounted on a body rotating within a perforated sheath, the body comprises a central, driven, part and cheeks receiving the ends of the members. As shown the body comprising a central part 1 and cheeks 2, 3, is rotated, within the sheath 5, by the shaft 4. Tongues 12, 14 on the cutting members 8, auxiliary cutting members 9 and abrading members 10 are received in openings 11 in the cheek 2 and radial slots 13 in the cheek 3 on which is also mounted a holding member 15 having a radial slot 16 with which any one of the slots 13 may be brought into register for release of the members. A resilient metallic ring 19 urging protuberances 17 on the member 15 into engagement with notches 18 on the cheek 3 ensures step by step rotation of the member 15. The members 8 and 10 cooperate alternately with the perforations 32 in the sheath, the members 8 being close to, and the members 10 a little way from, the sheath. The auxiliary cutting members 9 co-operate with slots 28 which extend over the adjacent plane surface of the sheath and may be oblique or radial. An area of larger perforations covered by a pivoted lid is provided for the extraction of cut hair and the sheath 5 may be replaced by a cleaning device incorporating a casing provided with a brush for cleaning the cutting and abrading members.
Patent GB-293402-A (GB)
Title: Improvements in or relating to electric measuring instruments
IPC: G01R31/36
Filed: 1927-04-01
Abstract: 293,402. Butler, H. April 1, 1927. Dials and scales; index hands and pointers.- A suppressed-zero voltmeter for indicating the state of charge of a secondary battery has a pointer moving over a fixed scale with a series of marked areas, or a movable segment with marked areas visible through an opening in a fixed dial. The scale, may, in addition, be calibrated to read volts, ampere-hours, or both. In the instrument shown in Fig. 1, a pointer 3 on the shaft of a coil 4 movable between the poles of a permanent magnet moves over a fixed scale 2. The scale is graduated to indicate the ampere-hours remaining in the battery, the lower portion 9, representing the values below which it is undesirable to discharge the battery, being coloured in red. Interchangeable scales may be provided for use with batteries of the two-volt, four-volt, and six-volt type. The number of turns in the controlling-spring may be reduced so that the scale is extended to indicate the point at which charging should be stopped. A resilient wire stop engages the movable coil 4 at the position corresponding to the lowest reading on the scale. In the modification shown in Figs. 6 and 8, a permanent magnet 16 polarizes an armature 18, the movements of which are controlled by a stationary core 19 within a coil 20. The shaft 17 of the armature 18 carries an indicating sector 24 having sections 25 - - 28 of different colours or otherwise marked differently, which are visible through an opening in the dial plate. The section 28 is visible when the instrument is out of circuit, the sections 27, 26, 25 indicating respectively low, medium, and full ampere-hours in the battery. When the instrument is out of circuit, the armature 18 is retained in the position shown, in which the extension 21 presses against the stop 22, by the magnetic field of the permanent magnet 16. An additional coil may be brought into circuit when the charging dynamo is connected, the same or a different indicator denoting that charging is taking place. Specification 207,578, [Class 37, Electricity, Measuring &c.], is referred to.
Patent GB-269168-A (GB)
Title: Improvements in steering mechanism for seaplanes
IPC: B64C35/00
Filed: 1927-04-01
Abstract: 269,168. Rohrbach Metall-Flugzeugbau Ges. April 8, 1926, [Convention date]. Rudders.-A water-rudder for a seaplane is detachably connected to the air-rudder controls so that it can be operated simultaneously therewith. In one modification the water-rudder 8 is pivoted to a false rudder 6 mounted on a frame 5 which can be unshipped and taken on board the plane. The rudder spindle 7 carries an arm which is linked to a lever detachably fitting, over the squared end of a spindle 9. A stud on the longitudinally-movable control rod 3 for the airrudder operates a slotted arm on the shaft 9 to actuate the water-rudder when in position. In a further modification, a spindle 16, Fig. 6, operated similarly to the shaft 9 above carries a pin 15. Fig. 9, which engages a slotted tube fixed within the end of the hollow rudder spindle 12 when the rudder is lowered. The rudder 10, when in mid position, can be raised into a recess 11 in the hull and disconnected by the aviator by means of a rope 4. Again, the rudder spindle 21, Fig. 10, may be axially fixed, and have pin- and-slot connection to an axially-movable spindle 22 which may be raised against a spring by a rope 4. The spindle 22 has pivoted thereto a curved and slotted lever 26 engaging a stud on the control rod 3. The rudder is normally held in neutral position by springs. Another modification consists in having a false rudder 29 pivoted on a horizontal axis 30, Fig. 14. an arm 33 on which is linked to a nut 32 raised and lowered on a screwed spindle by bevel-gear 31 operated by the pilot. An arm fixed to the axle of the rudder 28 carries a pin 35, Fig. 18, which normally engages a slotted lever 36 on a spindle 37. A slotted arm 39 operated by the control rod rocks the spindle. 37 through quadrant gears 38. When the rudder assembly is raised about the axis 30 into the housing 11 in the hull the coupling 35, 36 is detached. Instead of the nut-and-spindle arrangement. the assembly may be raised by means of a rope 4 and the, assembly may be suitably weighted so that when the seaplane attains a certain speed, the rudder will be automatically rotated into its housing. Fig. 18 shows clearly the method of simultaneously controlling the two rudders 2. 28.
Patent GB-381485-A (GB)
Title: Improvements in or relating to methods of generating high frequency electrical energy
IPC: H03B17/00
Filed: 1932-03-29
Abstract: 381,485. Converting. COMPAGNIE GENERALE DE TELEGRAPHIE SANS FIL, 79, Boulevard Haussmann, Paris. March 29, 1932, No. 9025. Convention date, April 18, 1931. Addition to 381,087. [Class 38 (ii).] In an arrangement for producing high frequency oscillations of substantially constant frequency in which a photo-electric cell is subjected to rays which are modulated at high frequency by means under the control of a master oscillator generating oscillations of relatively low and substantially constant frequency, as described in the parent Specification, rays from a luminous source are caused to move over a fixed interrupting screen located between the source and the photo-electric cell. The low frequency oscillations from the master oscillator are employed to drive a synchronous motor, having a hollow shaft 18 carrying a mirror 13 or prism which causes rays from a source 5 to sweep round a cylindrical mirror 14 associated with a lens 15 whereby the rays are directed upon the photo-electric 6. An interrupting screen having a series of apertures located in the path of the rotating beam is provided, for example at 16 or at 17. Various modifications may be - made in the optical arrangements ; for example, the mirror 13 may be omitted, the tube 19 being then mounted at such an angle with respect to the shaft as to direct the rays on to the mirror 14.
Patent GB-487086-A (GB)
Title: Improvements in and relating to an annealing furnace and a method of operating the same
IPC: C21D9/663
Filed: 1937-03-31
Abstract: 487,086. Metal-heating furnaces; gas &c. burners. TRIGGS, W. W. (American Rolling Mill Co.) March 31, 1937, No. 9133. [Class 51 (ii)] [Also in Group XI] In a bell-type furnace heated by U-shaped combustion tubes 24 the burners 30 are adjustably mounted in relation to the tubes. As shown, the tubes 24 are arranged vertically at the two sides of the furnace and all the burners at each side are carried by an air supply pipe 31 which is adjustable to and from the furnace in brackets 40 so that the distance to which the burners project into the tubes can be varied. The pipe 31 carries a second air supply pipe 32 and a gas pipe 41, and all these pipes extend round one end of the furnace where they are connected respectively through slip joints 35 to vertical pipes 33, 34 leading from a fan casing 36, and a gas connection 43. During the firing of the furnace the air for combustion is supplied through the pipes 34 and 32 to the pipe 31, but for cooling down the furnace after the heating-operation the pipe 31 only is used. The combustion tubes 24 pass at their upper ends through clearance openings 25 in the furnace body so that they are free to expand upwards, and the openings are sealed by sleeves 27 and dip troughs 28. In operating the furnace a greater amount of gas is supplied to the middle burners than to the end ones, and the pipe 31 is adjusted to position the hottest point of the flames at such a height in the tubes that uniform heating of the charge will be effected.
Patent GB-1298751-A (GB)
Title: Thermoluminscent dosimeter
Inventor: YAMASHITA TADAOKI
IPC: G03G9/08
Filed: 1970-02-25
Abstract: 1298751 Uses of luminescence MATSUSHITA ELECTRIC INDUSTRIAL CO Ltd 25 Feb 1970 [26 Feb 1969 (4)] 9177/70 Heading C4S A thermoluminescent dosimeter comprises a thermoluminescent element and a handle 3 (e.g. of All. Glass ampule 2 may include thermoluminescent LiF (dispersed in polyethylene tetrafluoride), CaF 2 , CaSO 4  : Mn, CaSO 4  : Tm, CaSO 4  : Dy, Li 2 B 4 O 7  or BeO for instance. Letters 4 or numbers with corresponding holes 4<SP>1</SP> may be provided for identification. The handle may include a thread 5 (Fig. lb, not shown) and a handle integrated with the glass ampule (Fig. 1c, not shown) with identification letters on metal plate (6). Fig. 2 (not shown) includes thermoluminescent disc (11) comprising a resin or inorganic binder in Al frame (12). The dosimeter may be mounted in a resin case (16) (Fig. 3, not shown) with spherical or elliptical radiation shield (17) of Sn or Cd with perforations of size and number to govern the sensitivity, these being especially useful with calcium sulphate or fluoride luminescent material. Triboluminescent effects are inhibited by this mounting. A spherically shaped dosimeter is preferred, eliminating the angular dependence on sensitivity. The dosimeter is fixed in the case by projection (18<SP>1</SP>) (Fig. 4, not shown), by pressing lid (19) with expanded portion (20) on to the handle (Fig. 5, not shown), and the disc shaped dosimeter of Fig. 2 may be placed in a resin case (Figs. 6a, 6b, not shown) with hinge (21), the dosimeter being placed by pressing the handle part to the case and so inhibiting mechanical effects on readout. The dosimeters are stated to be usable with a hot-air blowing, induction heating or light ray heating readout system but not an electric resistance heating system.
Patent GB-348300-A (GB)
Title: Improvements in and relating to puzzles
IPC: A63F9/12
Filed: 1930-03-23
Abstract: 348,300. Puzzles. MALTBY, C. J., 27, Asmuns Place, Golders Green, London. March 23, 1930, No. 9230. [Class 132 (iii).] In a puzzle of the kind in which sixteen numbered cubes are arranged to form a square, such that each of the horizontal, vertical and diagonal rows of numbers on the faces exposed total 34, and such that the numbers at the four corners and any block of four numbers total 34, the numbers applied to the six faces of each cube also total 34. The cubes are assembled on a board or card divided into sixteen squares. Each cube is provided on adjacent faces with the numerals 3 and 4, and has only one number exceeding 9. The numbers on no two cubes are duplicated. Reference has been directed by the Comptroller to Specifications 12040/89 and 24603/95, [both in Class 132, Toys &c.].
Patent GB-435565-A (GB)
Title: Improvements in or relating to modulated carrier wave transmitters
IPC: H03C1/62
Filed: 1934-03-24
Abstract: 435,565. Wireless transmitting systems. MARCONI'S WIRELESS TELEGRAPH CO., Ltd., Electra House, Victoria Embankment, London, and BANFI, A., 80, Corso Francia, Turin, Italy. March 24, 1934, No. 9314. [Class 40 (v)] Prior to modulation, the carrier-wave level is varied in accordance with signal volume by means of a variable mu valve the bias of which is dependent on the rectified strength of signals which have previously been distorted in amplitude by a second variable-mu valve. The object is to maintain strict lincarity between carrier level and signal volume. As shown in Fig. 7, a drive oscillator D feeds an amplifier V1, which precedes the modulating valves not shown. A portion of the signal voltage is applied at A, B, through an amplifier V4 to a rectifier V3, which gives a D.C. voltage, proportional to the signal volumes, across the resistance R and shunt condenser C. The resistance is in the biassing circuit of the carrier amplifier V1 in series with a battery B 1. The valve V1 is of the variable-mu type and as the signal strength rises, the bias on its control grid is reduced so that a stronger carrier is transmitted when the signals are strong. Owing to the exponential form of the characteristic of the valve V1, the amplification does not bear a linear relation to the grid bias. This defect is removed by distorting the amplitudes of the initial signal from the microphone M. The signal is applied through potentiometers to the grids of valves V5, V7. The valve V5 feeds the transformer AB in the input of valve V4 as described above. The valve V7 feeds a rectifier V6 which has its load resistance R1, shunted by a condenser C1, in the grid circuit of the valve V5 thus increasing the negative bias of that grid as the signal strength rises. The effect is to reduce the disparity between strong and weak signals, and so compensate for the exponential form of the characteristic of the valve V1. The time constant of the condenser-resistance combinations should be about one-twentieth of a second, so that volume variations occurring more than twenty times a second have substantially no effect on the grid bias of the valve V1, V5.
Patent GB-683797-A (GB)
Title: Magnetic head for sound recording and sound reproducing
IPC: G11B5/187
Filed: 1951-04-23
Abstract: 683,797. Magnetic recording apparatus. LOEWE OPTA AKT.-GES. April 23, 1951 [April 24, 1950], No. 9353/51. Drawings to Specification. Class 40 (ii). In a magnetic transducer the edges of the polepieces remote from the air gap are asymmetric, oblique, slotted or otherwise irregular with regard to the airgap, for the purpose of avoiding the attenuation which may occur when both faces have a dimension, in the direction of travel of the record medium, commensurate with a halfwavelength, or multiples of half-wavelengths, of the sound being recorded or reproduced.
Patent GB-855458-A (GB)
Title: Improvements in or relating to thermoelectric distilling apparatus
IPC: C02F1/16
Filed: 1958-03-24
Abstract: Distilling apparatus comprises a boiler portion for vaporizing a liquid and a condensing portion for condensing the vapour, in which heating of the liquid in the boiler portion and cooling of the vapour in the condenser portion are both produced by the use of a Peltier heat pump which effects transfer of heat from the condenser portion to the boiler portion.  In a preferred embodiment which may be <PICT:0855458/III/1> used for the purification of sea water, the water is admitted through inlet chamber 17 up to the base of a thermal and electrical barrier 36 within a Peltier heat pump assembly 27 which comprises a boiler assembly 40 and a condensing chamber 41. The assembly is attached to a base member 26 by means of a thermoinsulating member 28, and comprises an annular bank of alternately disposed ringshaped dissimilar elements 29 and 30, the inner and outer end surfaces of which are alternately joined by thermally and electrically conductive inner and outer annular thermojunction members 31 and 32.  Elements 29 and 30 are separated by a plurality of annular electrical insulation members 33.  The annular outer thermojunction members 32 are provided with a plurality of outwardly extending condensing fins 34 which provide drip edges for the condensate.  A direct current electric source is connected through a conductor 38 to the uppermost thermojunction member 32 and a return conductor 39 is connected to the lowermost thermojunction member 3211.  As a result of the current, heat is produced on the boiler side and withdrawn on the condenser side thus causing distillation without loss of heat to the exterior of the apparatus. The thermoelements may be made of the materials described in Specifications 766,999, 806,640 and 814,594.  Preferred negative thermoelements comprise 61.95-65% of lead, the remainder being chiefly tellurium with a small quantity of selenium or sulphur. Preferred positive thermoelements comprise 58.0 to 61.8% by weight of lead and 42.0 to 38.2% of tellurium.
Patent GB-1423761-A (GB)
Title: Xylidides
IPC: B01J27/00
Filed: 1973-02-26
Abstract: 1423761 Pharmaceutical compositions containing xylidides ASTRA PHARMACEUTICAL PRODUCTS Inc 26 Feb 1973 [28 Feb 1972 22 Jan 1973] 9391/73 Heading A5B [Also in Division C2] Pharmaceutical compositions, suitable for parenteral or topical administration. contain xylidides of the formula: wherein when R 1  is tert.-butyl and R 2  is H, R is H or CH 3 , and when R 1  is tert-amyl and R is H, R 2  is H, CH 3 CH 2 - or CH 3 CH 2 CH 2 -, or pharmaceutically acceptable acid addition salts thereof in association with pharmaceutcially acceptable carriers, and, if desired, vasoconstrictors. The compounds are used as local anaesthetics.
Patent GB-1390739-A (GB)
Title: Protective cover for controlling mechanism of gaming machines
IPC: G07F17/32
Filed: 1973-02-26
Abstract: 1390739 Gaming machines NEW CENTURY NOVELTY CO PTY Ltd 26 Feb 1973 [25 Feb 1972] 9410/73 Heading G4V A gaming machine 12 comprises an access door 13, display drums 16, a controlling mechanism 15 and a protective cover 11 located behind the access door to prevent fraudulent manipulation of the drums and controlling mechanism when the access door is open. The cover may be fixed to the controlling mechanism 15, which is removable, or to the frame of the machine. The cover may be a moulding of transparent plastics or alternatively the lower part of the cover may be of metal and only that part of the cover over the drums transparent. The cover does not extend over the coin testing mechanism 21.
Patent GB-526857-A (GB)
Title: Process for the production of sinter phosphates
IPC: C05B13/02
Filed: 1939-03-27
Abstract: 526,857. Sintering phosphates; double salts. KALI-CHEMIE AKT.-GES. March 27, 1939, No. 9536. Convention date, May 5, 1938. [Class 1 (iii)] In the process described in Specification 242,512, [Class 1(iii)], of calcining a mixture of crude phosphates, alkali metal compounds, and sand in such proportions that 1 mol. of alkali is present per mol. of P 2 0 5 , and a third of the lime bound to the phosphoric acid together with lime present in other forms is bound as calcium orthosilicate, the alkali metal compounds used are entirely or partly replaced by the slag produced in the desulphurization of crude iron with soda. Thus either the slag may be used in such quantity that the full requirements as to silica are met, and those of alkali are made up by addition of sodium carbonate, or in such quantity that the full requirements of alkali are met, and the extra silica thus introduced accounted for by the addition of calcium carbonate. Calcination with sintering is affected at about 1100‹C.
Patent GB-1387623-A (GB)
Title: Stroke control apparatus for hydraulic pump
IPC: F04B49/08
Filed: 1971-04-16
Abstract: 1387623 Reciprocating pumps JOSEPH LUCAS (INDUSTRIES) Ltd 6 June 1972 [16 April 1971] 9630/71 Heading F1A Apparatus for controlling the stroke of a variable stroke pump, e.g. a swash-plate pump, in both directions of flow, comprises a rod 12 for connection to the swash-plate and movable axially to vary the amount and direction of flow by a lever (44), Fig. I (not shown), acting via a spring assembly and abutment assembly 13 and 14 on rod 12, and a sleeve 17 having a shoulder 18 in a chamber 25 connected to the outlet of the pump, increase in output pressure moving sleeve 17 and a rod 19 to the left to pivot levers 31 and 37 against spring 41, so that abutments 34 and 40 move towards one another to reduce or limit the displacement of rod 12 by engaging abutments 13 and 14, radial clearance between a circlip 21 and a member 20 and between rod 19 and sleeve 17 permitting transverse movement of rod 19 with lever abutment 33 to reduce friction and increase sensitivity. Rod 19 is biased to the right by a spring 24 acting on a collar 23 with a part-spherical flange 23a pivotable in guide 22. The pump outlet pressure in chamber 25 also acts on a piston 28 via a pressure-responsive valve 26 and a restrictor 27. When the outlet pressure exceeds a predetermined level, valve 26 opens, and piston 28 moves rod 19 to move rod 12 to its zero-stroke position. Piston 28 is also connected to a low-pressure zone 30 via restrictor 27 and restrictor 29.