baber/WOPTO huggingface dataset:
Patent GB-573354-A (GB)
Title: Improvements in or relating to repeaters for telephone or like signalling systems
IPC: H03F1/54
Filed: 1943-12-10
Abstract: 573,354. Two-way repeaters. AUTOMATIC TELEPHONE & ELECTRIC CO., Ltd. Dec. 10, 1943, No. 20659. Convention date, March 5. [Class 40 (iv)] A two-way repeater has a by-path comprising an attenuating device which is automatically brought to the low-attenuation condition when either of the repeater amplifiers fails. At the same time, the impedance of the networks of the repeater hybrid coils is increased to a high value. As shown in Fig. 1, rectifiers 123, 124 in attenuating paths of the by-path are normahy biassed by the cathode-biassing voltages of the amplifiers, acting in opposition to a battery 125, to their high impedance condition and, at the same time, rectifiers 107d, 108d in the balancing networks are biassed by the anode currents to their low-impedance condition. When either amplifier tube fails, the rectifiers in one section of the by-path and in one of the balancing networks reverse their condition. This makes the by-path effective for the transmission of speech in both directions and renders the good amplifier ineffective. In other arrangements, Fig. 2 (not shown) and Fig. 3, the by-path has only one path and the same voltage is used for controlling its attenuation and the resistances of both balancing networks. In these arrangements, the controlling voltage may be obtained directly from a bias resistance common to both amplifier anode circuits acting in opposition to a battery. In the arrangement shown in Fig. 3, however, it is obtained from a bridge, one arm of which is constituted by the anodecathode space of a tube 333, the impedance of which is governed by the voltage drop in a bias resistance 311 common to both amplifier tubes.
Patent GB-223010-A (GB)
Title: Improvements in or relating to adjusting devices, for wireless telegraphic and telephonic instruments and the like
IPC: H03J1/14
Filed: 1923-08-14
Abstract: 223,010. Chapman, A. H. Aug. 14, 1923. Variable-speed epicyclic gearing.-An adjusting-device for wireless instruments is arranged to drive the element to be adjusted either directly for coarse adjustment or through an epicyclic reduction gear for fine adjustment. In the form shown in Fig. 1, an arm 4 rigidly secured to the shaft 3 to be adjusted carries, a friction wheel 7 in rolling engagement with a fixed surface 8. A conical friction surface 9 carried by the adjusting knob 1 is adapted to engage the wheel 7 when a fine adjustment is desired, but on moving the knob axially against the action of a spring 16, the surface 9 is disengaged from the wheel, and a pin 5 enters one of a number of holes 6 in the boss of the arm 4, so that the knob may drive the shaft 3 directly for coarse adjustment. In a modification, Fig. 3, a second speed-reduction friction wheel 7a is mounted on the arm 4, and the conical surface 18 on the knob is brought into engagement therewith by depressing the knob against the spring 16. In this form, the knob in its normal position is directly connected to the shaft 3 through a conical clutch 19. In another modification, Fig. 4, the friction wheel 21 rolls round the inner periphery of a ring 22 supported from the panel 14. In this form toothed gearing may be substituted for the friction gearing, and an additional wheel may be provided between the wheel 21 and the driving member 2.
Patent GB-1305332-A (GB)
IPC: C03B18/02
Filed: 1971-04-19
Abstract: 1305332 Photo-electric measurement of position or dimensions DEVELOPPEMENT ELECTRONIQUE & AUTOMATISME SA 19 April 1971 [23 Feb 1970] 20680/71 Heading G1A The dimensions and/or position e.g. width and/or centring, of a hot sheet-like moving workpiece are measured photo-electrically by two scanning systems, respectively scanning repetitively across each edge of the workpiece, both systems including filter means to pass only a narrow band of infrared wavelengths which represents a unique region in the spectrum of emission from the workpiece and from ambient hot gases and the heated rollers in which emission from the workpiece is appreciably larger than from all other emitters, Fig. 4 (not shown). The scanning systems each comprise an aperture through which radiation from the strip RM and from a neighbouring area MH adjacent the edge M, can reach concave mirror 2. A rotating mirror drum 3 effects repetitive scans across the area of mirror 2, directing the light via narrow pass (e.g. 0À15 Á in width) interference filter 4 to photo-cell 5. The beginning of each scan by a mirror drum facet is signalled to the detector signal evaluation circuit by a further photo-electric system of source 7 and photo-cell 6.
Patent GB-1083156-A (GB)
Title: Improvements in control mechanism
Inventor: KAST HOWARD BERDOLT
IPC: F01D17/16
Filed: 1965-05-17
Abstract: 1,083,156. Releasable fastenings. GENERAL ELECTRIC CO. May 17, 1965, No. 20692/65. Heading E2A. [Also in Divisions F1 and F2] To prevent loads on a member 36, movable between two extreme positions by a doubleacting linear actuator 51, from being fed back to the actuator, the linkage connecting the actuator to the member 36 comprises a rightangle bell-crank 58 pivoted at 62 to the member 36 and having one arm 60 pivoted to a rod 54 of the actuator while the other, longer arm 61, which is substantially parallel to the rod 54 and to the direction of movement of the member 36, carries at its end a pin 64 engaging in a Z-shaped fixed cam slot 72. With the member 36 in either extreme position, the pin 64 rests in a respective one of the ends 74, 75 of the slot 72 so that a load on the member 36 causes a purely axial load in the arm 61, and is reacted by the slot 72. A force applied by the actuator on the bell-crank 58 first rotates the latter to move the pin 64 into a main portion 73 of the slot 72, the member 36 then being free to move until the pin 64 reaches the other end of the slot 72 and is brought into the other locking position by rotation of the bell-crank. The cam slot 72 is formed in parallel plates 77, 78 one on either side of the arm 61, and spring clips 80 may be provided at the ends of the slot to locate the pin 64 in its locking positions. The invention is applied to the control linkage of movable final stage stator blades in the compressor of a jet engine, (see Division F1), the member 36 forming a ring about the engine casing.
Patent GB-706645-A (GB)
Title: Metallic combustion chamber for producing hot gases, particularly motive gases for gas turbine installations
IPC: F23R3/00
Filed: 1951-09-04
Abstract: 706,645. Generating combustion products under pressure. AKT.-GES. BROWN, BOVERI, & CIE. Sept. 4, 1951 [Sept. 4, 1950], No. 20864/51. Class 51 (1) A combustion chamber, particularly for use in a gas turbine plant, comprises an outer casing 2 and a flame tube 3, the portion of the flame tube subject to the greatest heat comprising at least two concentrically-arranged cylindrical perforated shells 3a, 3b, which are connected together at their ends so that no air can enter from the ends into the annular spaces formed by the shells. Air is supplied to the outer casing 2 through the duct 1 and the flame tube also comprises swirl vanes 5 and a single shell 3c at the downstream end which has large air inlet openings 10. Air inlets are also formed at 11 between the shells 3a, 3c. The sum of the crosssectional areas of the perforations in the innermost perforated shell 3b may be equal to the sum of the areas of the holes in each of the outer perforated shells, or it may be greater than the sum of the areas of the holes in each individual outer perforated shell.
Patent GB-613598-A (GB)
Title: Improvements in chimneys, ducts and the like
IPC: E04H12/28
Filed: 1946-07-12
Abstract: 613,598. Non - conducting coverings. STANIFORTH, A. V. July 12, 1946, No. 20913. [Class 64(ii)] [Also in Group X] A chimney, flue, or the like is provided with a lining comprising a plurality of panels and cover bars embodying at one end fixing means and a part formed to engage the free end of an adjacent bar. The panels 1 are embedded in a plastic resistant layer 13 inside the chimney wall 12 and the vertical joints between them are covered by cast iron bars 2 the lower ends of which are secured by nuts 22 to screws 5, attached to the chimney wall 12 and securely overlap the upper ends of the lower adjacent cover bars 2. Horizontal joints between adjacent lining panels 1 may be filled with plastic resistant material or may be covered with similar bars 2. Each cover bar 2 is of arcuate section and may be filled with plastic material or provided with strengthening ribs. At the top and bottom of the chimney the cover bars 2 are provided with tapered terminal cover bar sections 27, 28. The top edge of the chimney is provided with a ring 25 of angle section attached to the chimney wall 12 by clamps 26 and adapted to fit over the exposed edges of the panel 1, the plastic resistant layer 13 and the outer chimney wall 12. Specifications 537,307 and 552,960 [both in Group X], are referred to.
Patent GB-1041931-A (GB)
Title: Universal joints
Inventor: NEMTSOV JURI MITROFANOVICH
IPC: F16D3/28
Filed: 1963-05-24
Abstract: 1,041,931. Universal joints. MOSKOVSKY ZAROD MALOLITRAZHNYKH AUTOMOBILEY. May 24, 1963, No. 20920/63. Heading F2U. [Also in Division E2] A Hooke's joint has bearing bushes 3 of an anti-friction synthetic resin such as a polyamide between each of the shaft-cups 2 and the associated radial arms 1<SP>1</SP> of the central cross, the inner ends of the bushes protruding so as to seal the bearings. In modifications, Figs. 2 . . . 8 (not shown), an additional polyamide &c. sealing ring surrounds each of the protruding ends of the bearing bushes 3. Splines in the shaft-cups 2 engage corresponding projections on the outside surfaces of the bearing bushes 3, Figs. 9, 10 (also not shown).
Patent GB-441147-A (GB)
Title: Improvements in driving mechanism for the drying drums of intaglio printing machines
IPC: B41F13/00
Filed: 1934-07-17
Abstract: 441,147. Printing - machines. QUICK, C. G., BENNISON, W. E., and MAY, J. L., 109, Borough Road, London. July 17, 1934, No. 20941. [Class 100 (ii)] Drying - apparatus.-The drying- drum 1 of an intaglio printing-machine is driven at the commencement of its rotation at a speed slightly less than that of the normal speed of the web, the drive being effected through a slipping clutch which permits of over-run with respect to the positive drive when the web commences to drive the drum Strain upon the web at the commencement of the run is thus avoided. The drum 1 is attached to a shaft 2 fitted with a disc 3 which is slotted to receive the cylindrical heads 4 of struts 5 by means of which motion is transmitted to the drum from a driven wheel 8 formed with a flange 7 which engages the struts 5. The wheel 8 is preferably driven by adjustable mechanism as described in Specification 441,146, but when the web drives the drum 1 faster than the drive transmitted by the wheel 8, the ends of the struts 5 trail over the flange 7, and the shaft 2 over-runs the gear 8. To enable the drum 1 to be driven in either direction a second pair of struts 9 may be used, and each strut may be kept in operation by an independent spring, or a common spring 6 may act on the adjacent struts 5, 9. One of the struts 5, 9 is kept out of operation by means of a tongue 12 on a rotary member 10, which is held by a spring catch in the positions corresponding to the tripping of the respective struts.
Patent GB-584072-A (GB)
Title: Improvements in and relating to piezoelectric crystal mountings
IPC: H03H9/09
Filed: 1944-10-27
Abstract: 584,072. Piezo - electric crystal mountings. BRITISH THOMSONHOUSTON CO., Ltd. (General Electric Co.). Oct. 27, 1944, No. 20981. [Class 40 (v)] A piezo-electric crystal plate 10 has electrode coatings 12 which are connected to outgoing terminals 14 by flexible lead wires 13 soldered to silver dots 13a situated along a nodal line. The crystal is supported between the arms of a resilient bracket 17 having insulating jaws 20 which engage slots in the crystal along the nodal line. The base 11 may be joined to the edges of a hermetically sealed glass envelope.
Patent GB-479047-A (GB)
Title: Improvements in or relating to machines for opening channels of boot or shoe soles
IPC: A43D43/06
Filed: 1936-07-30
Abstract: 479,047. Boot - making machines. UNITED SHOE MACHINERY CORPORATION. July 30, 1936, No. 21048. Convention date, Aug. 10, 1935. [Class 17 (i)] Channel - opening.-A channel - opening machine comprises a member for turning the channel lip away from the body of the sole, a member for setting the lip in turned away position, and means for reciprocating these members along parallel paths extending inwardly of the sole from the edge thereof. A vibrating gauge member facilitates the feed of the sole through the machine. An eccentric strap 48 on a driven shaft is connected by a pivot 88 to the end of a link 70 pivoted to parallel levers 54, 68 oscillating on central pins and pivoted to a second link 76 which thus reciprocates parallel to the link 70 but in opposite direction. The link 70 carries a tool 10 having an end face concave heightwise of the sole and convex lengthwise of the sole and sloped downwardly and rearwardly. This tool raises the lip. The link 76 carries the lip-setting tool, which is pivoted at 96 to yield upwardly against a leaf spring 102 and has an under surface comprising an upwardly sloped portion 16, a shallow groove 15, and a nose 17. The portions 15, 16 are extended laterally to increase the bearing area on the lip. The tools slide on an adjustable gauge 20 having its leading corner gently rounded and its trailing corner abruptly rounded, and pivoted at 106. Its tail portion is received in a recess in an arm 64 of the lever 54. The oscillation so produced assists feed of the work. The driving shaft has a speed of some 6000 revolutions per minute.
Patent GB-1472653-A (GB)
Title: Controlled expansion alloy
IPC: C22C38/10
Filed: 1974-05-13
Abstract: 1472653 Nickel-iron-cobalt alloys CARPENTER TECHNOLOGY CORP 13 May 1974 21110/74 Addition to 1372606 Heading C7 The composition of the parent Specification which contains (in wt. per cent):- is modified by increasing the content of one or more of the elements Ni, Co, Nb or Ti above the limits previously imposed, the new maxima being Preferably the composition is adjusted to provide a desired mean coefficient of linear expansion, α 1 , from room temperature to Curie temperature by means of the equation while the Curie temperature (Tc) may be adjusted according to the equation As examplified the materials were hot forged at 2000-2100‹F, solution treated 1730-1900‹F, and aged 8 hours at 1325‹F followed by cooling to 1150‹ F at 100‹F/hr, holding for 8 hours and air cooling.
Patent GB-707357-A (GB)
Title: Improvements in or relating to self lubricating gear drive unit
Inventor: CLIBORN ROBERT
IPC: F16N7/26
Filed: 1952-08-22
Abstract: 707,357. Gas turbine plant; elastic-fluid turbines; stuffing-box substitutes. THOMPSON PRODUCTS. Inc. Aug. 22, 1952, No. 21119/52. Classes 110(3) and 122(5) [Also in Group XXXIV] A self-lubricating gear drive unit which may be driven by a gas turbine, comprises a gear chamber adapted to receive a charge of lubricant, and info which extends an end portion of a shaft journaled in bearings, the shaft being provided with a lubricating passage communicating with the bearings and opening axially outwardly at the end portion of the shaft, gear means on said end portion, and baffle means in the gear chamber at the end of the shaft to collect lubricant splashed by the gears, for direction into said lubricating passage. In the construction shown, a casing 10 is in two parts 12, 14. connected together to form a gear chamber C containing gears 50, 58 mounted on a shaft 52, and engaging, respectively, a gear 26 on a shaft 22 and a gear 60 on a shaft 62. The shaft 22 is driven by a turbine rotor 32, the blades 32b of which are supplied with fluid, for example air, under pressure conveyed through a shroud 42 and through openings 38c in a nozzle ring member 38. The shaft 22 has an axial passage 84 extending from the inner end of the shaft to a radial passage 84a to convey lubricant to the bearings 24. The lubricant is contained in the gear chamber C which is provided with a baffle 78 formed as shown in Fig. 2, with slots 78a, 78b intersecting at a point opposite the passage 84. As the gears rotate oil is splashed against the walls of the chamber and is partly collected by the baffle, from which it is drawn to the bearings through the passages 84, 84a as the shaft 22 rotates. A similar arrangement is made for lubricating the bearings 64 of shaft 62. This shaft has a splined end for driving connection to an engine accessory, for example a fuel pump of a jet-propulsion aircraft engine. Leakage of lubricant along shafts 22, 62 is prevented by sealing means 30, 72 constructed as shown in Fig. 4. A sheet metal sleeve 188 press-fitted over part of the shaft 22 has a projection 188a with a driving connection to a ring 190. The ring is engaged by a graphiteimpregnated ring 100 carried by a spring-pressed diaphragm 196. The diaphragm acts against the outer surface of an apertured wall 194 welded to a casing 192 which is secured to a casting 12. Synthetic rubber sealing rings 102, 104 are provided which together with the ring 100 completely seal the shaft 22 and casting 12.
Patent GB-1208235-A (GB)
Title: Expansible sleeve fluid flow control valve
IPC: F16K7/07
Filed: 1969-04-24
Abstract: 1,208,235. Valves. GROVE VALVE & REGULATOR CO. 24 April, 1969 [23 May, 1968], No. 21124/69. Heading F2V. An expansible tube fluid flow control valve comprises a housing 12 having inlet and outlet fluid passages 14 and 30 respectively, a barrier 24 secured in the housing, a resilient expansible tube 38 having an intermediate sealing portion, an expansion limiting surface 15 in the housing, an annular duct 44 in the housing around the expansion limiting surface 15, and means 46 for forming an annular port 50 in and around the annular duct wall opening through the expansion limiting surface 15. The means 46 is preferably a collector ring which may be segmented to allow it to be placed in position. It is then welded or otherwise secured to the housing.
Patent GB-694184-A (GB)
Title: A new or improved method of and means for producing a fine surface finish on cylindrical articles
Inventor: JONES DERRICK ALFRED
IPC: B24B39/04
Filed: 1950-08-26
Abstract: 694,184. Rolling. GIRLING, Ltd. Aug. 27, 1951 [Aug. 26, 1950], No. 21161/50. Class 83 (iv). [Also in Group XXIII] Cylindrical workpieces m are burnished between a driven roll a having a plain cylindrical. surface and a roll h which has a formed surface and is mounted at an angle to the roll a equal to that at which its formed surface was ground so as to make line-contact with the workpiece. The latter is supported on rolls n, p, q, s mounted at their ends in vertical guides in a fixed frame r. A screw f, carried by a bracket g, for moving the roll a may be replaced by hydraulic means for moving a carriage d for the roll a up to a stop. To facilitate operations on different sizes of workpiece, supporting rolls n, p, q of different size may be used positioning the workpiece with its axis beneath that of the roll a, or the position of the roll s may be adjusted. The roll a is rotated at the same speed and in the same direction as the roll h which, due to its angular disposition, traverses the workpiece axially to produce a smooth and hardened surface thereon.
Patent GB-215642-A (GB)
Title: Improvements in luggage carriers for motor vehicles
IPC: A63B55/57
Filed: 1923-08-21
Abstract: 215,642. Frisk, F. Aug. 21, 1923. Luggage and like holders; receptacles, detachably securing to running-boards.-A device for securing golf-bags or other articles of luggage to the running-board of a motor vehicle comprises a base-member 1, Fig. 1, adapted to be clamped to the running-board 2, and a number of supporting arms 4, 5, 6, 7, which are foldable in different planes, preferably laterally and longitudinally, and carrying straps 9. 10 embracing the golf-bag or like article 13. The arms 4, 5, which are preferably longer than the arms 6, 7, are connected by a rod 19, Fig. 5, adapted, when the arms 4, 5 are vertical, to be moved transversely into engagement with a keeper 22 so as to maintain these arms upright, and to be locked by the engagement of a spring-pressed detent 20 in a notch 20' in the rod 19. At the lower ends of the short arms 6, 7 horizontal extensions 23, Fig. 6, are movable in longitudinal sockets 24 in the base 1, thereby allowing these arms to be engaged in slots 25 for retaining the arms in a vertical position. The clamping-screw 31, Fig. 3, of the clamp 30 is provided with a vertical groove 38 engageable by a sliding bolt 36, which is operated by the mechanism of a lock 34, such arrangement protecting the luggage-carrier from theft.
Patent GB-441393-A (GB)
Title: Improvements relating to slides, slide locking devices and the like, particularly for seats of vehicles
IPC: B60N2/08
Filed: 1934-07-19
Abstract: 441,393. Clamp fastenings. CHAPMAN, A. W., 115, Howards Lane, Putney, London. July 19, 1934, No. 21167. [Class 44] [See also Group XIV] Sliding seats with locking means particularly for motor vehicles are fitted with parallel rails or guides 13, 21, co-operating with complementary rails or guides 18 on the base or floor 20, one of the rails 13 being movable forcibly in a transverse direction so as to secure the seat against sliding or other movement by forces exerted in two directions at right angles to one another and to the direction of sliding. The engaging surfaces of both the upper and lower rails are shaped to give line contact. The adjustable rail 13 is mounted on the foundation rail 2 by pins 9 and inclined slots, as shown in Fig. 2, and is displaced endwise as required, to free or to hold the seat, by a screw 6. The rail 13 may be engaged by a spring and released by the screw. Direct acting screws may be used to adjust the rail 13 transversely. Various other forms of interengaging surfaces on the rails are shown.
Patent GB-188399-A (GB)
Title: Improvements in self contained non-flushing sanitary closets
IPC: A47K11/03
Filed: 1921-08-10
Abstract: 188,399. Russell, I. N., and Grayson, G. W. Aug. 10, 1921. Dry closets; straining receptacles for.-A closet of the kind in which solid excreta are liquefied by chemical agents is fitted with a hopper 43 and yieldingly mounted crushing rolls 26, 27 dipping into dissolving liquid in the lower part 10 of the casing. When the lid 13 is raised a spring 64 on the spindle 55 is tensioned by means of ratchet and pawl mechanism. When the seat and footboard are freed from the weight of the user the spring rotates a chain wheel 66 on the spindle 55 and hence, through a chain 67, the rolls 26, 27. Scrapers 22 are provided to remove crushed faeces from the rolls. Paper is retained bv a basket 18. The upper section 11 is removable from the pan 10.
Patent GB-896556-A (GB)
Title: Improvements relating to a process and apparatus for the production of thin tubing or rod of glass or quartz
IPC: C03B23/047
Filed: 1959-06-22
Abstract: 896,556. Thin glass tubing or rod manufacture. BRITISH PETROLEUM CO. Ltd., HARESNAPE, J. N., DESTY, D. H., and WHYMAN, B. H. F. May 31, 1960 [June 22, 1959], No. 21270/59. Class 56. Thin glass tubing or rod is produced bY passing a tube or rod 3 between the nip of a pair of feed rollers 4, 5 rotating at a controlled speed, through a heating zone 8 to soften the glass, through an insulated zone such as a porcelain tube 11 and then between the nip of a pair of draw rollers, 9, 10 rotating at a controlled speed greater than that of feed rollers, 4, 5. The rod or tubing produced has an outside diameter in the range 0.3 to 1.2 mms. The rollers are preferably rubber covered and the heating zone is produced by passing a current through a helix 8 of resistance tape.