baber/WOPTO huggingface dataset:
Patent GB-518090-A (GB)
Title: Improvements in or relating to television and like apparatus
IPC: H04N5/232
Filed: 1938-08-15
Abstract: 518,090. Television transmitters. FERNSEH AKT.-GES. Aug. 15, 1938, No. 24002. Convention date, Aug. 14, 1937. [Class 40 (iii)] A cathode-ray tube monitor 10 is mounted so as to serve as the view finder of an electronic transmitter 1. The monitor 10 may be used as an oscillograph by applying the picture signals to the deflecting plates. The deflecting systems of the monitor and transmitter are preferably coupled capacitatively. The monitor may be viewed through a system of mirrors so that the image appears on the optical axis of the transmitter, Fig. 2 (not shown). The transmitter may be used with any one of a plurality of optical systems 5, 7 rotatably mounted on a turret head. The monitor and transmitter are preferably magnetically and electrostatically screened from each other. An electrical illumination meter may be mounted on the transmitter to facilitate maintenance of the correction illumination of the scanner.
Patent GB-462810-A (GB)
Title: Quick release for gearing for lantern lights and fire curtains, shutters and doors
IPC: E05F11/04
Filed: 1936-09-04
Abstract: 462,810. Preventing fires. BURKITT, F. Sept. 4, 1936, No. 24174. [Class 47 (ii)] [Also in Group XXV] A quick-release arrangement for fire curtains, shutters and the like has a steel pin C which secures the swivel bow J to the fitting B and which can be withdrawn by the depression of the handle A. The lever works on a pivot pin N and a spring O keeps the free end of the lever in its uppermost position. Specification 367,020 is referred to.
Patent GB-380239-A (GB)
Title: Improvements in slurry filtration
IPC: C04B7/40
Filed: 1931-08-28
Abstract: A small quantity of lime, or other flocculation increasing agent is added to cement or marl slurry to facilitate filtration. The amount of lime or the like is less than 1 per cent and is preferably about ,1 per cent.ALSO:A small quantity of lime, or other flocculation increasing agent, is added to cement or marl slurry to facilitate filtration. The amount of lime or the like is less than 1 per cent and is preferably about ,1 per cent.
Patent GB-974260-A (GB)
Title: Improved safety valve system
IPC: F16P3/22
Filed: 1963-06-18
Abstract: 974,260. Clutch control; brake control. ROSS OPERATING VALVE CO. June 18, 1963 [June 20, 19621, No. 24270/63. Headings F2F and F2L. In a clutch or brake control system for a press wherein a fluid pressure motor 11 is controlled by duplicated main and pilot valves 13, 15; 14, 16, a safety valve 36 cuts the pressure fluid supply 43 to the pilot valves 15, 16 when a pressure differential between corresponding points in the main valves 13, 14 caused by discrepant valve actions is sensed by valves 37, 38 which vent a pressure chamber 54 of the safety valve 36. The press is started by manually closing a switch 34 to energize solenoids 24, 25 operating the pilot valves 15, 16 which supply pressure fluid to the main valves 13, 14, whereupon the latter supply pressure fluid to the motor 11 and to both sensing valves 37, 38 which normally change over together and thus maintain the chamber 54 pressurized through lines 55, 56, 59. On completion of one cycle a cam driven by the press opens a switch 33 to de-energize the solenoids 24, 25 and thus vent the motor 11 to stop the press. In the event of discrepant main valve actions, caused by failure of part of the circuit, pressure fluid is supplied to only one of the sensing valves 37, 38 which changes over to vent the chamber 54 through an adjustable restriction 77 which delays for a predetermined time operation of the safety valve 36. After changeover of the safety valve the residual pressure in the supply lines to the pilot valves 15, 16 maintains the main valves in their supply positions until the press has completed its cycle. To reset the safety valve 36 a valve 41 or remote valve 42 is manually depressed to supply pressure fluid to a chamber 83 of a reset valve 39 which thus changes over to block the pilot valve fluid supply lines 48 and to supply pressure fluid through a line 88 to the chamber 54. On release of the valve 41 or 42 the reset valve returns to the position shown and pressure fluid is again supplied to the pilot valves 15, 16. The sensing valves 37, 38 comprise outer and inner spools 37, 38, Fig. 4, which during normal action slide towards and away from each other as pressure fluid from the main valves 13, 14 is supplied to and exhausted from chambers 49, 51. During such sliding a land 66 on the spool 38 passes through an aperture 71 in the spool 37. In either extreme position pressure fluid is supplied through lines 55, 56, duct 57, port 58 and line 59 to the safety valve chamber 54. On discrepant main valve actions only one of the chambers 49, 51 is pressurized and the land 66 blocks the aperture 71 and thus cuts the supply of pressure fluid from the line 55 to the chamber 54 which latter is exhausted through a port 74, line 76 and restriction 77, whereupon supply pressure 43 shifts the safety valve 36 right to' block lines 45, 55. Specification 751,031 is referred to.
Patent GB-409655-A (GB)
Title: Improvements relating to speed regulators
IPC: H02P9/42
Filed: 1932-08-31
Abstract: 409,655. Speed governors. BRITISH THOMSON - HOUSTON CO., Ltd., Crown House, Aldwych, London.-(Allgemeine Elektricitõts-Ges.; 2, Friedrich Karl-Ufer, Berlin.) Aug. 31, 1932, No. 24316. [Class 57.] In a frequency regulator, the pinion 2 is driven by a synchronous motor connected to the network and pinion 3 is driven by the standard device. The planet wheel 5 is attached to a spring 12 connected to a pivoted arm comprising a coil 6, located between magnets N, S, and a contact arm. When the contact 9 is closed, current flows through the coil 6 which causes a force to act in addition to that of the spring 8 to break the contact. The period of make and break is determined by the position of the wheel 5. The coil 6 and contact 9 are in parallel with a resistance 10 in a circuit comprising a source of E.M.F., a choke 14 and resistance 15. The current in the circuit is proportional to the integral difference of the actual frequency and the required frequency and may be employed to actuate the member controlling the flow of working fluid to the machine to be regulated. The drop of potential in the resistance 15 may be used as grid bias in the grid controlled discharge devices 16 which are connected to a device 17 which acts in a manner similar to a direct current measuring device and actuates the control member. Reference has been directed by the Comptroller to Specifications 169,154, 304,240, [both in Class 57], 370,242, 374,539 ; and 395,083 (as open to inspection under Sect. 91 of the Acts).
Patent GB-1497844-A (GB)
Title: Track supporting roller with resilient rim
IPC: B62D55/096
Filed: 1976-06-11
Abstract: 1497844 Endless track vehicles CATERPILLAR TRACTOR CO 11 June 1976 [3 Oct 1975] 24348/76 Heading B7H A roller for supporting the upper run of the track of an endless track vehicle comprises a hub 31 and a rim assembly 30 including a pair of rims 45, 46 which are made up of resilient segments 48 to reduce noise generated by running engagement between the roller and the track. Each segment 48 is made of rubber mixed with chopped reinforcing fibres or in a laminated structure made of layers of fabric woven from steel, glass or plastics fibres and impregnated with rubber. Steel bands 49 pass through openings 50 in the segments 48 to hold the segments together. Guide members 40, 41 mounted on the hub 31 between the rims 45, 46 have flanges 43 which provide lateral guidance for track links 23. Retaining members 51, 52 are detachably bolted to the hub 31 to clamp the rims 45, 46 between the retaining members and the guide members 40, 41. The invention may also be applied to an idler wheel or to a track roller which engages the lower run of the track.
Patent GB-699782-A (GB)
Title: Improvements in and relating to condenser coil assemblies for use in refrigeration apparatus
IPC: F25B39/04
Filed: 1951-10-19
Abstract: 699,782. Refrigerating. MARKWELL, A., and DONAGHY, T. Oct. 19, 1951, No. 24395/51. Class 29. A system of condenser coils for use in refrigeration apparatus includes an intake header 10 having an inlet 30 for gaseous refrigerant, an off-take header 11 for oil carried over with the refrigerant and an outlet header 13 having outlets 37 for condensed refrigerant, each of the headers being closed at its ends and including a number of releasably interconnected co-axial tubular parts 15 (see Fig. 4), at least one sinuous tube 14 connecting each part of the inlet header 10 to a corresponding part of the oil header 11 and at least one sinuous tube connecting the said part of the oil header to a corresponding part of the outlet header 13, an oil tank 12 being provided to receive oil collected by the header 11. In the preferred form (Fig. 4) each header section 15 is spigoted into an adjacent section and is provided externally with lugs 23, the two end sections having additionally, clamping bars 21 which together with lugs 23 are apertured to receive rods 24, the assembly being clamped together by nuts 25, 26 on the rods 24, with a gasket interposed between adjacent sections. The oil tank 12 is provided with a drain cock 36.
Patent GB-705216-A (GB)
Title: Improvements in fluid pressure relief valves
Inventor: DEWAR DOUGLAS
IPC: F16K17/04
Filed: 1951-10-19
Abstract: 705,216. Relief valves. DUNLOP RUBBER CO., Ltd. Aug. 22, 1952 [Oct. 19, 1951], No. 24412/51. Class 135 A pressure relief valve which is particularly adapted for use with life-saving apparel comprises a cylindrical housing 1 with an inlet port at one end and a cover 9 with holes 10 for the escape of pressure fluid at the other, a valve member 6 slidable in the housing to co-operate with a seat 4 surrounding the port, a plunger 11 slidably mounted in a central aperture in the cover, spring means such as the springs 13, 14 arranged between the valve member and the plunger and a cam lever 18 associated with the plunger 11 for varying the spring load on the valve member. The lever 18 is pinned to a spindle 16 mounted in upstanding lugs 15 on the cover 9 and carries a spring clip adapted in one position to engage the uppermost of three beadings on the housing 1. The latter is made of a thermosetting resin material and the seat 4 is moulded therein by means of a flange 5. Grooves 8 permit the passage of fluid round the open valve. The valve housing is secured to the life-saving apparel between the two lower headings. As the wearer approaches the surface the cam lever is rotated to the vertical position to increase the load on the valve.
Patent GB-707859-A (GB)
Title: Improvements in or relating to the manufacture of permanently crimped yarns from fully-synthetic organic textile fibres
IPC: D02G1/02
Filed: 1952-09-30
Abstract: 707,859. Crimping yarns. HEBERLEIN & CO., AKT.-GES. Sept. 30, 1952 [Oct. 25, 1951], No. 24434/52. Drawings to Specification. Class 120(3) Yarns from fully-synthetic organic textile fibre are crimped by giving the yarn a high twist, fixing the twist in this state by steaming and untwisting the yarn back to its normal twist or beyond the zero twist point wherein the number of'turns of the high twist is determined by the formula where T is the number of turns per metre and D is the denier number of the yarn. The twist may be fixed in the highly twisted yarn while wound upon a spool. In an example nylon yarn of 10 filaments having a total count of 30 denier is given a twist of 3860 turns per metre, two thirds of the total quantity being given an S twist and one third a Z twist. After steaming under pressure the yarns were twisted to 150 turns per metre in the opposite directions, and two yarns with the final Z twist were doubled with that having the S twist, to a twist of 100 turns/metre S, and the doubled yarn dressed with an aqueous solution polyvinyl alcohol and glycerin. In another example the high twisting of yarn is performed on a ring doubling frame and the twisted yarn wound upon aluminium tubes for the fixing process. In a further example the back twisted yarn is exposed to steam for a short time in the form of hanks.
Patent GB-920014-A (GB)
Title: Multi-stage hydrofining-hydrocracking process employing an intermediate treating operation
IPC: C10G47/00
Filed: 1960-07-13
Abstract: In the hydrocracking of liquid hydrocarbon fractions containing nitrogen compounds the feed is first hydrofined in the presence of a sulphur-resistant hydrogenation catalyst at 600 DEG -900 DEG F., not less than 300 p.s.i.g., at an L.H.S.V. of 0,3-5 and ammonia is removed from the effluent, at least part of the normally liquid effluent is then contacted with a siliceous cracking catalyst at a temperature below those at which cracking occurs and at least part of the normally liquid effluent is contacted in a final stage together with at least 1,500 S.C.F. of hydrogen per barrel of feed to the final stage with a catalyst comprising a hydrogenatingdehydrogenating component on an active acidic cracking support at 300 DEG -800 DEG F., an L.H.S.V. of 0,2-5 and at least 400 p.s.i.g., e.g. up to 5,000 p.s.i.g., there being consumed at least 750 S.C.F. of hydrogen per barrel of feed to the final zone converted to products boiling below its initial boiling point.  The feed may be a petroleum fraction boiling in the range 200 DEG -850 DEG F., e.g. a heavy cracked or straight-run naphtha, kerosine, or cycle oil.  The hydrofining is effected conventionally over oxides or sulphides of Co, Mo, Ni or W with or without oxides or carbonates of K, Ag, Be, Mg, Ca, Sr, Ba, Ce, Bi, Cr, Th, Si, Al or Zr and supported on charcoal, fuller's earth, kieselguhr, silica gel, alumina, bauxite or magnesia.  Ammonia is removed by injecting water into the reactor effluent and separating under pressure followed by stripping.  In the next stage the catalyst may be silica composited with magnesia, boria, alumina or alumina-zirconia or may be a natural alumino-silicate and is preferably silica-alumina containing 60-99% silica with a surface area of above 200m2/g.  The temperature of contacting may be up to 650 DEG F. including ambient temperature.  The final zone catalyst employs a cracking support similar to that used in the previous zone on which is deposited a Group VI or VIII metal or oxide or sulphide thereof, e.g. nickel or cobalt, their oxides and sulphides, oxides and sulphides of molybdenum, tungsten and chromium and if desired Group Ib or IIb metals, oxides or sulphides, e.g. copper, zinc or cadmium and their oxides or sulphides, in a total amount of 0,1-35% of the total catalyst.
Patent GB-662721-A (GB)
Title: Improvements in or relating to a steam generator
IPC: F22B21/34
Filed: 1949-09-23
Abstract: 662,721. Water-tube steam boilers; steam superheaters. COMBUSTION ENGINEERING-SUPERHEATER, Inc. Sept. 23, 1949 [Oct. 25, 1948], No. 24475/49. Classes 123(ii) and 123(iii) In a steam boiler comprising a vertical furnace chamber B lined with steam-generating tubes 7, 16, alternate tubes 16 on the front and rear walls 14, 15 of the chamber extend at 16<SP>1</SP>, 16" inwardly and upwardly from these walls towards the middle of said chamber and then, near the location of a primary superheater 20, vertically to form two parallel rows 16c and divide an upper gas receiving chamber C into three passes, namely, outer secondary superheater and reheater passes D, E, repsectively, and an intermediate byepass F fitted with an outlet damper 26. The tube parts of the rows 16c are preferably finned, and the spaces therebetween are filled with refractory blocks. The gases from the chamber C are lead into a duct 23; locating an economizer 24 and air preheater 25, from the pass D through dampers H<SP>1</SP> and from the passes F, E through dampers H", the said dampers being independently adjustable. The steam-generating tubes discharge directly, or through headers 11 and outlet tubes 12, into a primary steam-and-water drum 13 having an associated second steam-and-water drum 13<SP>1</SP> and a lower downcomer header 37, the latter being connected to the drums 13, 13<SP>1</SP> by tubes 38 and to inlet headers 8, 17, 18 at the bottom of the chamber by downcomers 17<SP>1</SP>, 18<SP>1</SP>. The secondary superheater I comprises upper and lower groups of parallel return-bend tubes which are connected at their inlet ends 29, 30 to a header 28, in communication with the drum 13<SP>1</SP>, and discharge into the primary superheater 20, the several tubes being bundled together by straps 30a and the assembly being suspended from the boiler roof through hangers 31, 32 engaging the said tube ends 29, 30; similarly the reheater J is in two groups braced by straps 35a and suspended from the roof through hangers 36. Some of the tubes of the rows 16c may also be supported by hangers as shown. Specification 642,671, [Group XII], is referred to.
Patent GB-746862-A (GB)
Title: Improvements in hydraulic pit props
IPC: E21D15/51
Filed: 1953-09-04
Abstract: 746,862. Hydraulic pit props. DOWTY HYDRAULIC UNITS, Ltd., [formerly DOWTY AUTO UNITS, Ltd.], and PRICE, W. R. Sept. 1, 1954 [Sept. 4, 1953], No. 24554/53. Class 20(2). [Also in Group XXIX] In a hydraulic pit prop a preset relief valve 35 is loaded by a spring 39 to seat upon a release valve in the form of a removable capsule 26 which is retained in an operative position in valve housing 21 by a cap 30 cooperating with a spring 29. To collapse the prop, the capsule 26 is lifted from a seat 28 in the valve housing 21, against the spring 29, by an externally operable cam 46. The loading of the relief valve is determined by shims placed between the spring 39 and one of its abutments.
Patent GB-443430-A (GB)
Title: Improvements relating to the control of electric horns for road vehicles
IPC: H01H21/22
Filed: 1934-08-27
Abstract: 443,430. Press - button retractive switches. LUCAS, Ltd., J., and NEILL, R. L., Great King Street, Birmingham. Aug. 27, 1934, No. 24608. [Class 38 (v)] [See also Group XXXVIII] A switch, for operating a pair of motor horns loudly or softly, comprises a bar p mounted on spring o to be capable of tilting to connect the central terminal l with terminal e or terminal f. If the bar is depressed as a whole, the central terminal connects with both contacts, but only terminal f is effective as a resistance, connected in circuit by terminal e, is shorted.
Patent GB-979669-A (GB)
Title: Dialkyl aluminium tertiary alkoxides and their manufacture
IPC: C07F5/06
Filed: 1962-06-27
Abstract: The invention comprises dialkyl aluminium tertiary alkoxides of formula AlR2OR1 wherein R represents a primary or secondary alkyl or cycloalkyl radical linked to the aluminium through a saturated aliphatically bound carbon atom and R1 a radical containing the grouping <FORM:0979669/C1/1> Specified R radicals include methyl, ethyl, propyl, normal or secondary butyl or cyclopentyl.  The radical R1 may be tertiary butyl, tertiary pentyl or other tertiary radical having up to 10 or more carbon atoms.  They may be prepared by reacting compounds of formula R2AlX where X is hydrogen, halogen or an alkyl radical in manner analogous to known procedures for the production of dialkyl aluminium alkoxides thus: (a) R3Al+R1OH --> RH+R2AlOR1 (b) R2AlH+R1OH --> H2+AlOR1 (c) R2AlCl+R1OK --> KCl+R2AlOR1 Further preparations include 2R3Al+R1OK --> KAlR4+R2AlOR1 R2AlCl+NaR2Al(OR1)2-->NaCl+ 2R2AlOR1 All preparations are conducted in an inert atmosphere with absence of oxygen and moisture. The compounds of the invention include alkoxides of alcohols in which two bonds of the tertiary carbon atom form part of a ring structure as in <FORM:0979669/C1/2>
Patent GB-1046688-A (GB)
Title: Distinguishing matrix, capable of learning for groups of analog signals
IPC: G06V30/194
Filed: 1965-06-11
Abstract: 1,046,688. Conditionable translating circuits. STANDARD TELEPHONES & CABLES Ltd. June 11, 1965 [June 12, 1964], No. 24747/65. Addition to 992,170. Heading G4R. An electric translating circuit for identifying sets of n analogue signals comprises a coordinate array of switching elements, Fig. 1 (not shown), having m row conductors, one for each possible set of input signals, (n + 1) column conductors, n for the m analogue signals of a set and an auxiliary (n + 1)th conductor. At every intersection there is a switching element. In the first part of a learning phase for each set the analogue signals of the set to be learned are applied to the column conductors 1 to n and the appropriate row conductor is energized so that the switching elements are set proportionally to the corresponding analogue signals. In the second part of the learning phase the n elements set are interrogated to obtain a signal representing the sum of the squares of the corresponding individual analogue signals which is used to set the switching element of the (n + 1)th column conductor proportionally. In the recognition phase the set of analogue signals to be recognized is applied to the column conductors and the (n + 1)th conductor is interrogated by a negative signal so that a value corresponding to the setting of the associated element is subtracted from the match signal produced in the other n switching elements. The row conductor having the lowest result indicates the one corresponding to the received set of analogue signals. For the first part of the learning phase the input analogue voltages are converted to current pulses which, when the corresponding row conductor is energized, set transfluxors at the crossing points. For the second part of this phase the input voltages are converted to high-frequency A.C. signals which read out the settings of the transfluxors without altering their settings. The row wire has a signal induced in it by each transfluxor proportional to the product of its setting and the input voltage i.e. to the square of the input voltage. The signals are summed on the row conductor and is switched to a writing generator connected to the (n + 1)th column conductor. This in coincidence with the row conductor current sets the transfluxor of the (n + 1)th column to a value proportional to the sum of the squares of the pattern to be learned. In the recognition phase a signal of magnitude - 1 is applied to the auxiliary column, and the input set of voltages is applied to the column conductors 1 to n as a current pulse. An exact match would exactly cancel the signal from the auxiliary transfluxor, giving a zero output. The lowest output is detected by a comparator circuit to identify the input pattern.
Patent GB-772987-A (GB)
Title: Improvements in and relating to means for starting an internal combustion engine
Inventor: BENSON DONALD O
IPC: A01D34/68
Filed: 1955-08-29
Abstract: 772,987. Mowing machines. TORO MANUFACTURING CORPORATION OF MINNESOTA. Aug. 29, 1955, No. 24762/55. Class 6(3). [Also in Group XXVII] A hand-propelled lawn mower comprises a downwardly open frame 5 supported just above the ground by wheels 6, the frame having a flat upper surface 7 and guiding handles 8 extending upwardly and rearwardly therefrom. An internal combustion engine M is mounted upon the surface 7 by bolts 9 and is provided with a vertical drive shaft, one end of which has a starting pulley 12 thereon whilst the other is connected to a cutter bar with cutting blades thereon, not shown. The engine is started by pulling upwardly a cord 14 that passes round the pulley and under a hook 17 (see also Group XXVII).
Patent GB-1112248-A (GB)
Title: Improvements in or relating to n-path frequency translation systems
Inventor: GINGELL MICHAEL JOHN
IPC: H03B27/00
Filed: 1966-06-03
Abstract: 1,112,248. Modulation; frequency changes. STANDARD TELEPHONES & CABLES Ltd. 2 June, 1967 [3 June, 1966], No. 24792/66. Addition to 1,096,250. Headings H3F and H3R. The input modulator of a frequency translation system as described in Specification 1,098,250 is a polyphase modulator in order to reject unwanted frequency bands in the output. Fig. 6 shows a system wherein the input modulator comprises a three-pole, three-way rotary sampling switch 5W3; the three terminals 1 are connected to channel 1, and similar connections are made to channels 2 and 3. The system may be extended to N channels (Fig. 7, not shown), and the output modulator may be similar to the input modulator.