baber/WOPTO huggingface dataset:
Patent GB-851172-A (GB)
Title: Improvements in or relating to a two-speed epicyclic gear for use in motor vehicles
IPC: F16H33/08
Filed: 1956-06-09
Abstract: 851,172. Variable speed gear. REID, H. C. May 30, 1957 [June 9, 1956; March 19, 1957], Nos. 17884/56.and 8954/57. Class 80 (2). A two-speed epicyclic gear for a motor vehicle providing automatic downshift to a fixed reduction ratio, and upshift to direct drive permitted only on torque-reversal created by momentary throttle closure, which may be manual or automatic, comprises masses 20 attached to diametrically opposite points of planets 12 on radial shafts 14 of a planet carrier prevented from reverse rotation by a one-way detent 19. As shown two such gears are arranged in series between input and output shafts 11, 13a to provide three ratios, the masses 20a of the second train being greater and/or at a greater radius than those of the first so that the trains shift successively. Each train comprises an input side wheel 10, output wheel 17 and meshing stepped bevel planets 12. Initially both carriers 14, 14a are held from reverse rotation by their one-way detents 19, 19a and provide simple reduction ratios. On momentary throttle closure by manual, electrical or centrifugal means above predetermined speed and load conditions, the carriers rotate forward and on subsequent throttle opening, the resistance of the masses of one gear set to rotation about their own axes 14 from a position in which the diameters of the two mass sets lie at right angles to the plane of the axes of the shafts 11, 13 towards one in which the diameters lie in that plane, produces solid drive, first in one unit and, on subsequent momentary throttle closure under higher speed conditions, in the other. When during direct drive, increased load and/or reduced speed forces the masses more than halfway from the right angle setting towards the aligned setting referred to above (i.e. beyond a critical point) the planets again rotate on their own axes, the planet carrier comes to rest against its detent, producing automatic downshift in each train in succession. Downshift may be enforced by brakes on the carrier operable manually or by accelerator kickdown. Upshift may be accelerated by a cone clutch between the output shaft and the carrier engageable by a screw in the reverse direction only (Fig. 6, not shown). In Fig. 3, not shown, simple bevel planets on a radial shaft centrally carrying one pair of masses mesh bevels on planet shafts parallel to the main shafts and carrying spur planets meshing suns on the input and output shafts. The gear may be driven through a manual or centrifugal. clutch, fluid coupling or torque converter. An automatic clutch may be associated with the one-way detent of the planet carrier. - The detent may be disabled to provide neutral and also reverse by also meshing countershaft idlers with wheels on the planet carrier and driven shaft. Separate bevel reverse gear may alternatively be provided. A negative one-way clutch may be provided between the output shaft and the planet carrier for engine braking and push starting.
Patent GB-732875-A (GB)
Title: Motor vehicle body
Inventor: BARBER HARRY RICHARD
IPC: B62D25/08
Filed: 1953-06-27
Abstract: 732,875. Vehicle bodies. ALVIS, Ltd. April 20, 1954 [June 27, 1953], No. 17888/53. Class 108 (1). [Also in Group X] A motor vehicle has a hollow rigid engine bulkhead with front and rear walls 20, 21, which impedes the transmission of heat and sound to the driver and passengers, between which walls a ventilating air flow passes from scoops 32 to outlets 31 (see Group X). A fan 37 may draw air through a heater 36 and pass it into the driving compartment, and via a pipe 41 and a transverse duct 42 to de-misting nozzles 43. The rigidity of the bulkhead may be increased by securing together internal depressions on the plates 20, 21, or the bulkhead may be otherwise reinforced. To accmodate a clutch housing the wall 21 may be bulged rearwardly and centrally, and the wall 20 may have a central opening sealingly engaged with the wall 21. Controls may pass through the bulkhead in tubes provided with resilient grommets.
Patent GB-173249-A (GB)
Title: Improvements in non-return valves
IPC: F16K15/14
Filed: 1921-03-30
Abstract: 173,249. Rosling, C., and Davis, R. H. March 30, 1921. Check elastic valves.-A check valve, particularly applicable for use with respiratory apparatus and of the type comprising two sheets of flexible material connected together at intervals around their peripheries so as to leave fluid passages between the connected parts, has one of the sheets d provided with extensions c<1> which are folded around the edge of the other sheet b and cemented to its outer surface. In the form shown the sheets are octagonal in shape and the sheet b is provided with a tubular inlet a. Two of these valves may be mounted in a cylindrical fitting with a mouthpiece between to act as inlet and outlet valves in an apparatus for examining inspired and expired air.
Patent GB-1379925-A (GB)
Title: Control circuitry for apparatus for feeding documents one at a  time from a stack
IPC: G06K13/06
Filed: 1972-04-18
Abstract: 1379925 Feeding sheets DATA RECOGNITION Ltd 18 April 1973 [18 April 1972] 17960/72 Heading B8R Control circuitry for apparatus for feeding documents one at a time from a pile comprises a document thickness sensor arranged to sense the thickness of a document leaving the apparatus and a reference thickness sensor adapted to receive a single document identical to those on the pile, the two sensors being connected to a comparator which responds to a difference between the sensor outputs by inhibiting further feed of documents from the pile, such difference indicating the absence of the reference document or the simultaneous feeding of more than one document from the pile, and the sensors each comprising a light source and a photodetector. There is also a sensor to detect the presence of a document in a document reader to which the documents are fed, the sensor responding to the presence of a document to delay the feed of a further document until the first document has been removed from the reader. Further sensors detect a "jam" condition in the feed path and the feeding of the last document in the pile, in both cases stopping the feeder apparatus. The reader also transmits "feed enable" or "reject" signals to start or stop the feed.
Patent GB-711198-A (GB)
Title: Improvements relating to tank vent valves
Inventor: HAERLE HALAM RALPH
IPC: F16K17/19
Filed: 1952-07-16
Abstract: 711,198. Fluid-actuated valves. HYMATIC ENGINEERING CO., Ltd. June 5, 1953 [July 16, 1952], No. 17963/52. Class 135 A combined pressure and vacuum relief valve, e.g. for aircraft fuel tanks, comprises a valve plate 3 having a spring-loaded valve 8 controlling a central plate-passage 4, and holes 7 controlled by a resilient annular member, e.g. the diaphragm 14, loaded by a weight 15 and held at its outer edge and co-operating with a raised seat on the side of the plate opposite to the spring-loaded valve. The casing part 1 is connected to the fuel tank and the part 2 is open to atmosphere. A filter 16 carried in a member 17 can be removed, when the sealed sleeve 23 is raised, through a transverse casing slot by a tool inserted through an opening 22.
Patent GB-154863-A (GB)
Title: Improvements in and relating to nut and bolt locking devices
IPC: F16B39/10
Filed: 1920-06-30
Abstract: 154,863. Evans, W. F. June 30, 1920. Locking nuts.-A washer for locking bolts for railroad fish-plates &c. is stamped from sheet metal and has one or more lugs 27 tapered in the direction of the depth and away from the axis of the bolt hole 23, said lugs being forced by a nut 29 into recesses 19 in the fish-plate 14, the hole being thereby contracted into clamping engagement with the bolt 17. The ends 32 of the washers are split to form tongues 34 to engage the side faces of the nut. The tongues may be bent up permanently and act as springs, and may be provided with off-set portions 36, the edges 35 being bevelled. An elliptical portion 18 of the bolt shanks is housed in an elliptical hole in the fish-plate to prevent turning, the bolts being inserted alternatively in opposite directions. The washer may be split from the hole 23 outwardly.
Patent GB-530277-A (GB)
Title: Improvements in or relating to sewing machines
IPC: D05B3/06
Filed: 1939-06-20
Abstract: 530,277. Sewing-machines. JACKSON, L. MELLERSH-. (International Button Hole Sewing Machine Co.). June 20, 1939, No. 17994. [Class 112] Button-hole sewing-machines.-The halves of the work clamp, after being closed, are separated slightly to stretch the work by a central cam which moves the clamps to invariable outer positions. The return is spring-urged and the inner positions are determined by an adjustable wedge piece 81 interposed between the ends of slides 71 which are coupled to the lower clampplates. The wedge is adjustable by means of a screw 85 mounted in the machine frame. Screws 73 adjustably fixed in the slides 71 pass through slots in the bed-plate and their heads fit accurately in holes in the lower clamp-plates. The other ends of the clamp-plates have longitudinal slots entered by rollers 64 on levers 58. These levers have pin-and-slot connections with levers 57 and the latter have pin-and-slot connections with the slides 71. This mechanism secures a substantially parallel separation motion of the clamp halves. Specification 423,491, and U.S.A. Specifications 713, 764, 1,481,514, 1,905,854 and 1,935,083 are referred to.
Patent GB-237261-A (GB)
Title: Portable talking machine
IPC: G11B33/02
Filed: 1925-07-15
Abstract: 237,261. Midence, A. July 19, 1924, [Convention date]. Cases; sound-boxes, arrangement of; mandrels.-In a portable taking machine in which the parts are adapted to be housed within the casing, the support for the sound-box, which may be constructed as described in Specification 237,249 and may carry a collapsable horn as described in Specification 237,255, is formed in two detachable parts for separate housing in the casing, which also accommodates the winding handle adapted to screw into the end of the winding spindle. The sound-box is supported 'during playing by two members, one comprising an L-shaped rod 13 having its shorter bent end engaging a socket 16 in the casing 1 and its longer bent end 15 upstanding, and the other comprising a rod 18 bent into a shallow U-form and extended and bent down at one end 21 to carry a socket 22 adapted to fit on the upstanding end 15 of the other member. The soundbox 7 pivots on the free end of the U-member 18 and is apertured at 9 and 10 for engagement thereon in two positions for playing with a needle or a stylus respectively. In either case it can be turned up on its supporting pivot to rest in the U-formation for changing the stylus or the record. In housing the parts, the U-member 18 is laid against the side of the cover 6 and held by a spring clip 23, and the L-member 13 is removed and its longer bent end 15 inserted in the socket 16 so that the part 13 and also the winding handle 24 can be held in the box 1 by a spring clip 17. The horn 8 is collapsed on the sound-box and placed over the turntable 4 of small diameter. The Specification as open to inspection under Sect. 91 (3) (a) describes a cap 29, Fig. 12 (Cancelled), with spring fingers 30 adapted to engage a groove in the turntable spindle to hold and press the record on the turntable. This subjectmatter does not appear in the Specification as accepted.
Patent GB-503292-A (GB)
Title: Improvements in ball-float actuated valves
IPC: F16K33/00
Filed: 1938-06-18
Abstract: 503,292. Float - actuated valves. WIGGINS, A. W. June 18, 1938, No. 18129. [Class 135] The float a of a float-actuated valve - c is hinged to the lever arm b by a double-leaf hinge e, e<1> with a pivot e<2>, one part e being secured to the ball and the other part e' to the lever b. A screw f serves for adjusting the opening or closing of the hinge and the position of the ball relative to the lever b. The Provisional Specification describes also an arrangement in which a supplementary lever secured to the ball is pivoted on the main lever and carries the adjusting screw at its other end, the said pivot comprising a transverse pin engaging one of several grooves along the top of the supplementary lever.' In another arrangement the adjusting screw is positioned at the valve end of the float-lever. In a still further arrangement the ball is carried by a screwthreaded rod engaging in a tapped boss on the end of the lever-arm.
Patent GB-313960-A (GB)
Title: Improvements in repeating theodolites
IPC: G01C1/02
Filed: 1929-06-13
Abstract: 313,960. Zeiss, C., [Firm of]. June 20, 1928, [Convention date]. Theodolites. - In a theodolite for repetition reading, having two clamping devices, both clamps are attached to the telescope, carrier, one serving to clamp the telescope to the base and the other to clamp the telescope to the horizontal graduated circle. Only one fine adjusting means is provided, this being secured to the telescope carrier for adjusting the telescope relatively to the base. The telescope carrier c is secured to the centre bearing b and has an extension c<1> constituting a casing for the horizontal circle d which extends from a sleeve d<1> frictionally mounted on the base a. A ring e rotatable on the base has an extension e<1> with an upward projection e<2> on one side of which bears the fineadjustment screw f<2> mounted on the casing c<1> while the other side of the projection e<2> bears on a spring plunger g'. Within the extension e<1> is a rod l and a screw m<1> so that by turning this screw the carrier c is clamped to the base. The clamp for the circle d comprises an eccentricallypivoted lever p operating a plunger o which is adapted to press a flexible disc n secured to the circle into contact with a member c<4> secured to the casing c<1>. In using the instrument for repetition reading, both clamps are loosened and the telescope directed towards the first object to be sighted. The clamp m<1> is then tightened and after fine adjustment by the screw f<2> a reading is taken. The clamp m<1> is then released, the telescope is directed towards the second object and another reading is taken. The clamp p is then tightened and the clamp m<1> released and the telescope is turned back to the first object, carrying the circle with it. The clamp m<1> is then tightened and the screw f<2> operated for fine adjustment and another reading taken. The clamp p is then released so that the whole proceeding can be repeated.
Patent GB-1089122-A (GB)
Title: Liquid level gauge
Inventor: SNOWMAN JOHN WASHINGTON
IPC: G01F23/24
Filed: 1965-04-30
Abstract: 1,089,122. Liquid level indication. BRITISH OXYGEN CO. Ltd. April 26, 1966 [April 30, 1965], No. 18247/65. Heading G1H. In a condensation type liquid level gauge for indicating the level of a cold liquid in a vessel 12 in which a capillary tube probe 10 connected to a gas reservoir 16 external of the vessel 12 extends to the bottom of the vessel 12 and is closed at its lower end so as to contain a gas condensible at the temperature of the cold liquid contained in the vessel 12, a heat conductive copper wire 22 extends throughout the internal length of the probe 10 to a point external of vessel 12. The height of the cold liquid in the vessel 12 determine the amount of condensation of gas in the probe 10 and hence the gas pressure in reservoir 16 which is measured by a pressure gauge 19 graduated in terms of liquid level in the vessel 12. The gas reservoir may comprise a bellows and associated linkage operating through an electrical circuit to provide a record on a remotely located chart.
Patent GB-738437-A (GB)
Title: Improvements in or relating to apparatus for vulcanising rubber soles on to footwear
Inventor: FRASER ROBERT MARTIN
IPC: B29C35/00
Filed: 1953-07-01
Abstract: 738,437. Moulding rubber soles on to footwear. FABRICA ARGENTINA DE ALPARGATAS SOC. ANON INDUSTRIAL Y COMMERCIAL. July 1, 1953, No. 18255/53. Class 87 (2). An apparatus for vulcanizing rubber soles comprises a heated mould 2 over which an arm 33 turning about an axis 32 carries a last 46 which is moved so as to enter the mould 2 by a press 31 comprising a screw 42 turning in a thread in arm 33. The'rubber is prevented from rising too far up the footwear by laterally movable elements 5. In operation, the sheets 5, 6 are initially separated to a limit fixed by abutment of attached elements 19 against screws 21 in elements 20 fixed to base 1. The sole 4 to be vulcanized is placed in mould 2 and actuation of rods 27 moves sheets 5, 6 towards each other. A spring attached to stop 18 fixed on shaft 16 and to element 19 causes the lower faces of the sheets to bear against the 'mould edge. With the arm 33 in the position shown in Fig. 2, footwear is placed on the last and is then rotated by handle 48 to bear against the inclined part 39 of the clasp 37 until a narrow section 38 engages a slot 35 and is held there by spring 40. The handle 43 may now be turned to bring the last into contact with the sheets. On reverse action of levers 27 the sheets are returned to the position shown in Fig. 1 by means of spring 49. Arm 33 is then freed by downward pressure on rod 52, when it is rotated by the action of counterweight 34 about pivot 32 to the position shown in Fig. 2 to free the last.
Patent GB-829959-A (GB)
Title: Apparatus for indicating the operating condition of filters
Inventor: AUCKLAND JOHN RAYMOND
IPC: B01D35/143
Filed: 1957-06-07
Abstract: 829,959. Indicating condition of filters. VOKES Ltd. June 6, 1958 [June 7, 1957], No. 18269/57. Class 46. [Also in Groups XIX and XXXVIII] Bellows-operated snap-over spring 10 moves a coloured thimble 16 into a transparent window 17 upon attainment of a predetermined pressure difference (applied at 3 and 8) across an oil filter (not shown), giving warning that filter bypassing means is in operation.
Patent GB-1516171-A (GB)
Title: Methods and apparatus for securing pipe flanges
IPC: F16L23/02
Filed: 1975-05-01
Abstract: 1516171 Pipe joints; tools for forming pipe joints BROWN & ROOT (UK) Ltd 17 July 1975 [1 May 1975] 18278/75 Heading F2G A fluid operated jack, Fig. 3, comprises a cylindrical body 20 having an axial recess wherein a cylindrical piston member 23 is slidably received and wherein hydraulic fluid is introduced to effect outward relative axial movement of the parts whereby in use the jack is receivable on to a bolt end 16 of a flanged pipe coupling, Fig. 1, and when fixed relative thereto by a nut is effective upon hydraulic operation in drawing the flanges together whereupon a joint fixing nut 18 accessible through an aperture 33 on the jack may be tightened, e.g. by a turning bar. Preferably a flanged pipe joint, Fig. 1, has a plurality of fixing bolts 16 projecting alternately from opposite sides of coupled flanges 12, 13 each set of bolt projections receiving respectively a ring of coupled jacks which are simultaneously operated as described to draw the flanges together. The jacks may be connected to a common hydraulic fluid source having a pressure gauge whereby a pressure drop from an initial level is recordable over a given time interval; the initial pressure level being reestablished until the pressure drop is less than a pre-established increment.
Patent GB-146354-A (GB)
Title: A system for controlling relays by means of wave trains, especially for wireless high speed telegraphy
IPC: H04L27/06
Filed: 1920-07-02
Abstract: 146,354. Siemens & Halske Akt.- Ges. May 27, 1919, [Convention date]. Vacuum tubes.-An additional grid, indicated by short parallel lines, is provided in a threeelectrode rectifying valve for the purpose of removing a space charge from the proximity of the cathode.
Patent GB-651574-A (GB)
Title: Improvements in cleats or clamps for ropes and the like
IPC: B66C1/34
Filed: 1948-07-07
Abstract: 651,574. Rope grips. AEROLEX, Ltd., and HARLEY, F. B. July 7, 1948, No. 18332. [Class 44] A cleat or rope grip comprises two parts formed for connection to a lashing line so as to move relatively to one another by the tensioning of the line, one part having a curved rope receiving surface 16, Figs. 1, 2, and the other part 18 having one or more clamping surfaces 19 opposed to the surface 16 and moving - towards it on tensioning of the line.
Patent GB-1484417-A (GB)
Title: Method and apparatus for developing an electrical image
IPC: G03G15/08
Filed: 1975-05-02
Abstract: 1484417 Developing images XEROX CORP 2 May 1975 [31 May 1974] 18403/75 Heading G2H An electrostatic latent image on a charged surface of a photo-conductive member is developed by providing a non-conductive donor sheet bearing electrostatically charged marking material adjacent the image bearing surface, placing an edge 30 of a conductor 27 against the side of the donor sheet opposite the side facing the image bearing surface and moving the edge and the donor sheet relative to each other to effect transfer of marking material to the photo-conductive member under the influence of the resultant electrical field. In a first embodiment, the photo-conductive member is an Se coating 12 on an Al drum 11 and the donor sheet in an endless belt 28, toner material being applied to the sheet by a brush 38 dipping into a container 39. The photo-conductive member is given a positive charge and the toner a negative charge. The density of the copies is controlled either by varying the potential applied to the photo-conductive member in which case the conductor 27 is connected to ground, or by' connecting the conductor to a variable voltage source 25 to vary the potential between the conductor and photo-conductive member. In a second embodiment, the photo-conductive member is a flatly supported ZnO paper (65), Fig. 2 (not shown), the donor sheet (66) is supported parallel thereto, and the conductor (68) moved along the surface of the donor sheet. The photoconductive member is charged negatively, the toner positively, and the conductor is maintained at near ground potential. In a third embodiment, the drum of the first embodiment is replaced by a roller over which ZnO paper is passed. To copy light characters on a dark background, the conductor is maintained at a potential equal to that on the unexposed background areas of the latent image on the photo-conductive member and the toner has the same charge polarity.
Patent GB-1037765-A (GB)
Title: Artificial textile fibres and their production
IPC: D01D5/42
Filed: 1963-05-09
Abstract: 1,037,765. Gallium arsenide. INTERNATIONAL BUSINESS MACHINE CORPORATION. Aug. 4, 1964 [Aug. 1, 1963], No. 31403/64. Heading C1A. [Also in Division H1J A gallium arsenide crystal is produced by introducing a mixture of gallium hydride and arsenic chloride and/or arsenic hydride into the region surrounding a gallium arsenide crystal substrate heated to a temperature above the pyrolitic disintegration temperature of the mixture, whereby pymlitic disintegration of the mixture takes place and a gallium arsenide crystal is grown epitaxially on the substrate. The gallium and arsenic compounds may be in the gaseous or liquid form. Hydrogen may be included in the mixture. A GaAs wafer 4, placed on graphite block 2 coated with thin quartz layer 3 situated inside quartz reaction chamber 1, is heated to 600‹ C. by induction windings 5. A gas mixture comprising H 2 , Ga 2 H 6 , AsCl 3  or H 2 , Ga 2 H 6 , AsH 3  at 20‹ C. is passed over the GaAs wafer through 6 and 7. Effluent gas mixture flows out through 8, and may be directed into an additional reaction chamber. By including suitable doping material in the gas mixture, PN junction may be produced on a seed doped with P-type impurities. The growth of the epitaxial layer may be limited to certain areas determined by a thermal mask.