baber/WOPTO huggingface dataset:
Patent GB-1127155-A (GB)
Title: Apparatus and method for conveying solids entrained in moving fluids
IPC: B65G53/30
Filed: 1966-04-04
Abstract: 1,127,155. Pneumatic conveyers. T. B. WALSH. 4 April, 1966, No. 14894/66. Heading B8A. [Also in Divisions B1 and F1] In a system for picking up material from a pile and conveying it in a gas or liquid stream through a conduit 22 and a speed reduction chamber 24 to one or other of a pair of chambers 12a, 12b, connected in parallel to a blower or pump 32, a valve is provided for re-establishing the line negative pressure in the empty chamber just prior to the switching of the flow to that chamber, whereby the switch causes substantially no interruption of the flow or change of negative pressure in the conduit. A pump 32 is connected to a chamber 18 with which the chambers 12a, 12b communicate through apertures 20a, 20b covered by filters 40a, 40b, a slide valve 34 being provided to close one or other of the apertures and being so constructed that while one aperture is open the other aperture may be opened slightly. Valves 27a, 27b are provided between the chambers 12a, 12b and the chamber 24. Each chamber 12a, 12b is provided with a bottom discharge opening closed by a plate, Fig. 3 (not shown). The speed reduction chamber 24 is of circular cross-section the area of which may be varied, Fig. 4 (not shown).
Patent GB-430055-A (GB)
Title: Manufacture of sulphurised dyestuffs
IPC: C09B49/10
Filed: 1934-05-17
Abstract: Blue to black dyeing sulphurized dyestuffs are manufactured by heating an indophenol from a carbazole and a nitrosophenol, preferably after conversion into the corresponding leuco-compound, with sulphur at a temperature above 210 DEG  C. with the addition of a nuclear substitution product of aniline which contains a substituent X--R where R represents hydrogen, alkyl, aralkyl or aryl and X represents an --N--C-- bridge united by the N-atom or by the C-atom to the aniline residue, e.g. monoacyl derivatives of diaminobenzene and their conversion products, such as acetyl-m- or p-phenylene- or toluylenediamines or the corresponding formyl, propionyl, butyryl or benzoyl compounds; compounds containing a residue of a Schiff's base, such as those produced by condensing nitraniline with benzaldehyde and reducing the nitro group or by condensing an aminoaldehyde with an aromatic amine, e.g. the products from p-phenylenediamine and 1 or 2 molecular proportions of p-aminobenzaldehyde; also products which may be regarded as derivatives of these acidyl- or anhydrocompounds, such as imidazoles, e.g. m  - methyl - 4 - amino - 1 : 2 - benzimidazole. There may also be employed compounds which contain, instead of the amino-group, a group capable of being reduced thereto, e.g. 4 - nitro - 1 - acetylaminobenzene, 4 - nitro - 2 - methyl - 1 - acetylaminobenzene or 1 - acetylaminonaphthalene-4-azobenzene. In a modification of the process the indophenol is first condensed with the aniline derivative and the product is heated with sulphur at a temperature above 210 DEG  C.  In examples: (1) carbazole is condensed with p-nitrosophenol and the indophenol is reduced with a polysulphide solution and heated to 210--215 DEG  C. with 1-acetylamino-4- or -3-aminobenzene, sulphur and common salt, the product being oxidized with air; (2) the indophenol as in (1) is reduced with sodium sulphide and sulphur and heated to 230--240 DEG C. with 1 - acetylamino - 4 - aminobenzene, sulphur and common salt; (3) the indophenol from carbazole and nitrosophenol is reduced with sodium tetrasulphide and heated to 230 DEG  C. with 1 - amino - 4 - formylaminobenzene or m  - methyl - 4 - amino - 1 : 2 - benzimidazole, sulphur and common salt; (4) carbazoleindophenol is condensed with 1-amino-4-acetylaminobenzene and the product is heated at 230 DEG  C. with sodium tetrasulphide, sulphur and common salt; the 1 - amino - 4 - acetylaminobenzene may be replaced by 1 - amino - 3 - acetylaminobenzene, 1 - amino - 2 - methyl - 5 - acetylaminobenzene, 1 - amino - 4 - benzoylaminobenzene, 1 - amino - 3 - or 4 - formylaminobenzene, m  - methyl - 4 - amino - 1 : 2 - benzimidazole or 4-aminodiphenylurea; (5) carbazoleindophenol is condensed with the condensation product from 1 : 4-diaminobenzene and 2 molecular proportions of 4-aminobenzaldehyde and the product is treated as in (4); (6) cotton is dyed with the product of (2) from a bath containing sodium sulphide, sodium carbonate and Glauber's salt. Specifications 199,360 and 243,739, [both in Class 2 (iii)], are referred to.
Patent GB-320099-A (GB)
Title: A new or improved apparatus incorporating means adapted to propel balls
IPC: A63B59/00
Filed: 1928-05-22
Abstract: 320,099. Dunlop Rubber Co., Ltd., Randles, J. T. T., and Goodhall, S. N. May 22, 1928. Testing balls.-An apparatus for testing tennis balls, squash racquet balls, racquets, for displaying the like, and for practising games comprises a racquet 1 gripped in a resilient anchorage 2 upon a flywheel 3 rotating with a shaft 4 driven by a motor 5. The ball delivery means comprises a tube 18 into which the balls fall from a shoot 19 and from which they are released in timed relation to the rotation of the racquet by the regulating mechanism, indicated generally by the reference numeral 20 and shown in detail in Fig. 5, which is driven off the racquet operating shaft 4. Fine timing of the release mechanism is obtained by providing a final release mechanism 32 which trips once every rotation of the racquet. The balls are returned to the shoot 19 by means of ricochet boards 42 and 43. Balls which miss the ricochet boards gravitate down the sloping floor 51 to a hole 53 through which they pass into a guide shoot 56 in communication with the conveyer 55 which is driven from the motor 5. The conveyer 55 comprises a chain from which project cups 62 which in passage round the lower chain sprocket 63 scoop up a ball from the shoot 56 and deliver it through the hole 68 to the shoot 19. The mechanical actuation of the delivery v mechanism may be replaced by an electrical actuation. When practising games the player can return the balls instead of the ricochet boards. The Provisional Specification states that the apparatus can be used with golf clubs and balls.
Patent GB-1294395-A (GB)
Title: A conveying apparatus
IPC: B66B21/12
Filed: 1970-03-31
Abstract: 1294395 Railway systems TOYODA JIDOSHOKKI SEISAKUSHO KK 31 March 1970 [29 March 1969] 15038/70 Heading B7L [Also in Division B8] A passenger conveyer, including low speed and high speed sections, comprises a plurality of carriages K pivotally connected together at 1 for relative movement in a horizontal plane and each having a depending roller 4 for engagement with one of a pair of guide rails 2 which serve to guide the carriages from a parallel, sideby-side arrangement in the low speed section to an end on series arrangement in the high speed section. Each carriage is further provided with shock absorbing means in the form of a pneumatic piston and cylinder 13 mounting a roller 15 for engagement with an adjacent carriage and a spring 16. The carriages have wheels (7), Fig. 3 (not shown), for supporting the carriages on the ground or the like and have racks (9), Fig. 4 (not shown), on the under-side such that when the carriages are in the low speed configuration they may be driven by a spigot (10) coupled to a motor (12). In an alternative arrangement the carriages are equipped with depending hooks for supporting holders for articles to be coated and dried.
Patent GB-976681-A (GB)
Title: Improvements relating to the compensation of unbalance in rotary machines
IPC: G01M1/36
Filed: 1963-04-17
Abstract: 976,681. Balancing shafts. LANDISGENDRON S.A. April 17, 1963 [April 20, 1962], No. 15066/63. Heading F2U. [Also in Divisions B3 and F1] A shaft 4 of a turbine, compressor, grinding wheel &c. is dynamically re-balanced on imbalance, when two masses 14, 16 are automatically acted upon by fluid pressure to move circumferentially around a ring-shaped channel 6 in a drum 2 fast with the shaft, the channel also constaining a fixed mass 12 forming a partition and a diametrically opposite stop 18. A differential pressure generating device, comprising a ring-shaped chamber 44 through which passes the shaft 4, is fed with fluid under pressure, e.g. oil or air, through a pipe 46. The fluid under pressure in the chamber 44 passes through ports 38 &c. to shaft ducts 32 &c. and ports 26, 28, 30 located between the movable masses 14, 16. If imbalance occurs in apparatus mounted on the shaft 4, as by breaking of a blade of a turbine or compressor or by irregular wear of a grinding wheel, the shaft gyrates and its axis moves off-centre relatively to the differential pressure generator 44 &c. Those ports 38 &c. of the differential pressure generator nearest to the side of the ring-shaped chamber 44, e.g. as shown in Fig. 3 the ports 38, 42, are then subjected to an increased pressure. This increased pressure is fed through the shaft ducts 32, 36 and the ports 26, 30 to move the masses 14, 16 around the channel 6. When the shaft 4 &c. has been rebalanced, it stops gyrating and returns to its central position within the chamber 44. The masses 14, 16 are then maintained in their equlibrium position. As a modification, the fixed mass 12 may be replaced by a lightweight partition in association with a compensating mass fixed on the drum 2.
Patent GB-1039236-A (GB)
Title: Improvements in or relating to the formation of a double bond between the 9- and 11-positions of a steroid
Inventor: NAGATA WATARU
IPC: C07J75/00
Filed: 1964-04-13
Abstract: Novel 9,11-unsaturated steroids including a structure represented by the formula <FORM:1039236/C2/1> wherein R is a hydrogen atom, a hydroxyl group or an epoxy bridge attached at C3 are obtained by treating a 9,11-saturated steroid represented by the partial formula <FORM:1039236/C2/2> with nitrous acid; e.g. an alkali metal nitrite in the presence of an acid in an inert solvent.
Patent GB-220746-A (GB)
Title: Improvements in cameras
IPC: G03B19/04
Filed: 1923-06-12
Abstract: 220,746. Hardy, A., and Johnson, L. K. June 12, 1923. Cameras, roll-film, masking in; roller-slides. -In a camera adapted to take spools of difterent widths, the spools are mounted on holders comprising end plates 15, 16, Fig. 7, with the centering pins and telescopic arms 17, 18, which are connected by a retracting spring 21. The spool housings, Fig. 1 and 5, have a series of slots 33, corresponding to different widths of films into which the peripheral sections 31 of the discs 15, 16 fit and the spool-holders are held in position by the projections 32 against which the back cover 2 abuts. For the winding- on spool the turning disc 24 and an inner disc 25, Fig. 5, carrying the stud 28 for the, winding end of the spool are screwed together and shaped to form a peripheral groove 27 engaging a stamped-out edge of an opening in the plate 15. The recesses 29, 30 are engaged by the end 49 of a retractable winding stem 45. This stem rotates with the sleeve 39 and can telescope within it against the action of the spring 47 and the sleeve 39 itself can telescope a limited extent within an outer casing 36 against the action of the spring 40 so as to allow the forked head 49 to come within the side panel of the camera when the largest spool is used. The casing 36 is mounted between an outer bracket 38 and an inner flanged plate 37 which is flush with the inner face of the camera, and this casing 36 is turned by the winding handle 44 and cross-bar 41. To prevent the winding handle being turned backwards, spring-positioned rollers 52 are interposed between the retaining flanges of the plate 37 and inclined cam faces 53 carried by the casing 36. A series of nesting masks 55 is provided within the camera frame, the inner mask being of a size corresponding to the film used, and the film is pressed on to the rear face of the masks by a pressure plate 56 with flat springs 57 contacting with the outer cover 2. Inclined inspection slots 58 in the cover 2 and plate 56 are provided to allow inspection of the numbers on the different sizes of films.
Patent GB-172666-A (GB)
Title: Improvements in mercury, and other, vapour electric lamps
IPC: H01J13/00
Filed: 1920-06-07
Abstract: 172,666. Silica Syndicate, Ltd., and Reynolds, F. June 7, 1920. Arc lamps.-A mercury or other vapour lamp of the open or atmospheric type having at one end a chamber 4, Fig. 1, for displaced mercury, connected by an inclined lighting tube 2 with a chamber 3 filled with mercury, is provided with a constriction 2a in the lighting tube arranged so as to assist in striking the arc, and, by increasing the heating effect, to balance the temperature rise at the ends of the lamp. The joints between tungsten or molybdenum leading-in wires and the lamp'body are made tight against the escape of mercury but permit the escape of air or gas. For this purpose, extensions 5, 6 on the lamp are made plastic, and are pressed around the wires by mechanical or atmospheric pressure. A heating-coil (not shown) surrounds a lateral tube 10, and is short-circuited, when the arc has been started, by movement of the mercury in the chamber 4 into contact with mercury in a small container 9<b>. A perforated baffle 11 retards the displacement of mercury at starting and during- transit. In a modification, Fig. 3, a U-tube. 13, of fine bore, connects the chamber 4 with 'the atmosphere, to allow escape of air. A bend 14 is formed at the point where the lighting-tube 2 joins the chamber 4 so as to steady the arc.
Patent GB-558934-A (GB)
Title: Temporary service bolt
IPC: F16B13/08
Filed: 1942-10-31
Abstract: 558,934. Bolts. WILSON, A. Oct. 31, 1942, No. 15358. [Classes 44 and 89 (i)] A temporary service bolt operable from one side of the work comprises a threaded bar 10 with a bifurcated end in which a head 12 is pivoted at 13. The slot forming the bifurcation is extended at 15 to form a groove to fit and act as a stop for the end 16 of the head, and a projection 12c on the head engages an abutment 15a in the bolt, thus limiting the movement of the head to 90 degrees. The end 12d of the head is weighted so that by rotating the bolt by means of a turning bar 18 the head-may be caused to assume either the inoperative position in line with the bar or the operative position at right angles thereto. The turning bar serves also to indicate the position of the bolt. A loose sleeve 19 is fitted between the nut 11 and the work.
Patent GB-304299-A (GB)
Title: Improvements in cooking apparatus
IPC: A47J36/36
Filed: 1928-05-25
Abstract: 304,299. Braach, P., and Rosenberger, H. Jan. 20, 1928, [Convention date]. Kettles; heating-surfaces, increasing; jackets.- Relates to kettles or water-heaters of the kind formed with a vertical flue within which a second vessel can be supported for heating. In the form of the invention shown in Fig. 1, the oval-shaped water-containing vessel a is pierced by a flue adapted to contain a vessel c, the top plate of the flue having a series of concentric annular rings b to enable vessels of different sizes to be accommodated. The water-heater is surrounded by a jacket d, e, f, through which the flue gases pass emerging at openings h in the outer wall. The jacket also serves to catch, and cause re-evaporation of, condensed water. It is detachably secured by clamping-nipples p to the water container. The container has a filling opening with cover g, a spout t, and a bail handle (not shown). Fig. 3 shows a modified construction in which the jacket d, e, is not complete but has an intermediate wall o around which the gases pass to emerge at openings formed below the edge of the cover plate n. Vertical or horizontal ribs or " heating strips " such as u, Fig. 6, may be arranged in the flue passages of the constructions, and the walls of the parts may be corrugated vertically or horizontally.
Patent GB-692575-A (GB)
Title: Conveyor means for mining
IPC: E21F13/06
Filed: 1948-01-07
Abstract: 692,575. Shaker conveyers. JOY MANUFACTURING CO. Jan. 7, 1948. [Jan. 19, 1946] No. 15417/50. Divided out of 692,542. Class 78 (i). Shovel 175, Figs. 4 and 7. fitted with adjustable side wings 179, is detachably secured at 189 to conveyer belt 186, the other end of the belt being wound on to drum 192 driven from motor 197 through clutch 200 so as to form a shaker conveyer adjustable in length. Upon actuation of the clutch (see later), the belt 186 is drawn to the left, piston 216 fixed to the belt also moving to the left within cylinder 215 secured to baseplate 6, so that air within the cylinder is compressed. When the clutch is released the pressure of the said air restores the belt to its original position. The reciprocating movement of the belt conveys coal therealong till the coal is diverted by stationary deflector 243 on to endless conveyer 236. Fig. 10. Dogs 228, 229 secured to the conveyer belt 186 contact an operating rod so that contact member 226 on said rod alternately closes and opens switch 225 which, by working solenoid 209, actuates and releases clutch plate 201 of clutch 200 to cause the reciprocating movement. The mechanism of the coal cutter used in connection with the above conveyer is set out in Specification 692,542.
Patent GB-906619-A (GB)
Title: Thermoelectric heating and cooling apparatus
IPC: F25B21/02
Filed: 1960-05-02
Abstract: 906,619. Refrigerating; heat pumps. CARRIER CORPORATION. May 2, 1960 [May 11, 1959], No. 15445/60. Class 29. In a thermoelectric air heating or cooling apparatus, an adequate heat transfer is achieved with reduced fin area by producing relative motion between the air and the fins which are in conductive relationship with the hot and cold junctions. As shown, the fins 32 and 33 act as impeller blades to produce a flow of air from ports 35 and 38 to ports 36 and 39 respectively. The fins are mounted on a rotatable thermoelectric panel 20 having N-type and P-type elements 21 connected in series alternately by conductors 22. The elements 21, 22 are embedded in insulating plastic foam 80 and are covered by insulating sheets 45, 46. Electric motor 16 rotates the panel 20 and a constant potential difference is applied to slip rings 25 and 26 through reversing switch 30.
Patent GB-1428963-A (GB)
Title: Circuits for modifying the dynamic range of signals
IPC: H03G9/02
Filed: 1972-04-04
Abstract: 1428963 Companders DOLBY LABORATORIES Inc 27 March 1973 [4 April 1972] 15484/72 Heading H4R In a compander in which a linear main component is combined 11 in a main path 10 with a further component representing the difference between signals 15, 16 derived from the main path 10, one of which signals is delayed 20, the further component is restricted 23-26 to less than 10% of the main component. The further component boosts the main component in dynamic range compression. The delay and differencing cancel repetitive signals such as video line scan signals and colour subcarriers and their harmonics to prevent choking of the circuit. The direct and delayed further signals 15, 16 may be derived from the input or output of the circuit to provide four possible configurations (Figs. 3-6, not shown) for each compressor or expander. In Fig. 8, the delayed signal 16 and the difference signal levels are adjusted at 22, 26 to ensure full cancellation. The further paths 15, 16 may include low pass filters to restrict circuit operation to low frequency (<350 kHz) luminance signals of a colour TV signal for recording and playback. The delay is effected digitally or via a disc recorder and is either short, since repetitive signals do not change significantly over a small time period, or covers a line, field and/or frame period. In the limiter Fig. 13, limiting is effected by diodes 34, resistor 35 and bleed resistor 36 whilst capacitor 35A provides a variable limiting band, inverter amplifier 38 biases point 37 to lower the limiting threshold with increasing signal level and further diodes 49 prevent this lowering reversing the limiting action. The phase and the D.C. level of the input to combiner 19, Fig. 8, may be compared to generate control signals to adjust a fine delay (22, Fig. 15, not shown). The circuits may be combined with others having non-delaying further paths to produce a noise reduction system in which the further paths include filters to handle different frequency bands, such as 1f luminance, chrominance and sub-carrier sidebands of an NTSC or PAL signal, the TV signals themselves being divided into their components YIQ(NTSC), YUV(PAL) or even RGB and each component handled differently. The delayed and differenced signal may be derived by a vidicon (88, Fig. 24, not shown) whose scanning beam is modulated with the input signal, written on to the previous field or frame held on the screen and the difference leaked to a mixer (92) receiving the inverted input signal. The complementary expander is similar. Different order delays in parallel or identical delays in tandem feed individual filter/limiters handling upper and lower frequency bands to further reduce choking (Figs. 25-27, not shown).
Patent GB-1013345-A (GB)
Title: Photographic copying processes
IPC: G03C8/52
Filed: 1962-04-16
Abstract: 1,013,345. Photographic process. GEVAERT PHOTO-PRODUCTEN N. V. April 16, 1962 [April 14, 1961], No. 15527/65. Divided out of 1,013,344. Addition to 1, 001, 558. Heading G2C. Glassine or modified glassine-type papers (as defined by means of literature references) are used as receiving sheets in the process of the parent Specification which relates diffusion transfer processes wherein diffusion transfer takes place into a colloid layer forming part of the lightsensitive material which layer is then physically transferred to a receiving sheet.
Patent GB-183981-A (GB)
Title: Improvements relating to hot water heating systems
IPC: F24D3/02
Filed: 1921-06-04
Abstract: 183,981. Barter, C., and Barley, S. June 4, 1921. Heating buildings.-In order to increase the water circulation in a hot water heating-system there is inserted between the supply or expansion tank c, Fig. 2, and the pipes n of the system a device which comprises an outer casing a, Fig. 1, and a pair of tubes d, e arranged one within the other in the casing and which permits any necessary movement of water into or out of the system and also provides an air cushion in the casing adapted to be compressed when water expands into the casing during the heating-up of the system. When the pipes n, boiler j, and radiators k are initially filled from the tank c, the water flows down the tube d, up through the annular space between the tubes d, e, and thence into the casing a through lateral apertures f in the tube e, and continues to flow until it reaches the level of a cock i at the lower end of the casing a. At this stage the flow ceases, an air cushion is formed in the casing a, and the tubes d, e are filled with water. When expansion of water occurs from the pipes n, the air cushion is compressed and tends to force the water in the tubes d, e back into the tank c, while any water withdrawn from the system is immediately replaced by a flow from the tank. Owing to the head of water provided, the water in the system may be circulated at a temperature above the normal boiling-point. The tank c may, however, be located below the device a, as indicated in dotted lines in Fig. 2, in which case the system must be filled by other means than gravity flow. In a modification, Fig. 3, the tube d is of U-shape at its lower end, and the tube e surrounds the upwardly-extending limb d<2> of the tube d. Specification 17713/14 is referred to.