baber/WOPTO huggingface dataset:
Patent GB-1504737-A (GB)
Title: Apparatus for monitoring clarity of a fluid sample
IPC: G01N21/53
Filed: 1975-03-25
Abstract: 1504737 Measuring the clarity of fluid samples J BOEKE 25 March 1975 [28 March 1974] 12374/75 Heading G1A An apparatus for measuring the clarity of a fluid sample comprises means for transmitting radiant energy into the sample, first means for detecting radiant energy from the transmitting means, in use, after it has passed through a substantial portion of the sample, second means for detecting radiant energy from the transmitting means and mounted adjacent the transmitting means, means responsive to the energy detected by the second detecting means for establishing a measurement period and indicating means responsive to the total energy detected by the first detecting means during the measurement period. As shown the transmitting means comprises a lamp 17, a light pipe or fibre optics 15 and a window 26, the first detecting means, a measurement photocell 16 and a window 24 and the second detecting means, a light conducting element 19, a reference photo-cell 20 and a window 22. The windows 22, 24, 26 are each covered with a perforated cover 28 which may be a mesh of rounded stainless steel wire or a glass filter plate, the cover being purged by air passing through the casings containing the optical part of the apparatus. The measurement period establishing means comprises a capacitor forming part of an integrating circuit and the means responsive to the total energy detected by the first detecting means also comprises a capacitor forming part of an integrating circuit Fig. 3 (not shown). The measurement period is ended by the conducting of a silicon controlled rectifier which has the effect of causing the sequential closing of relays to discharge the measured energy through a visual indicating instrument and reset the reference circuit. If the fluid becomes too opaque an alarm is triggered as also it is if a breakdown in the apparatus occurs. The light path for the reference signal may be placed away from the flow of the fluid Fig. 2 (not shown). The embodiment relates to smoke in a chimney stack, the two photo-cells being . mounted on the same housing to maintain common ambient conditions.
Patent GB-1418516-A (GB)
Title: Key system for electronic musical instruments
IPC: G10H1/053
Filed: 1973-03-15
Abstract: 1418516 Electrophonic musical instrument A MICHEL 15 March 1973 [17 March 1972 3 Oct 1972] 12418/73 Heading G5J To control the individual build up of e.g. 1800 notes of the register of an electronic instrument, activated typically by 60 keys, each key 11 on closure produces in its circuit A a rising voltage U s  (Fig. 2) across load 16, the rate depending on supply voltage U A  and on the R-C circuit 10, 13, 14. Each register note is supplied with appropriate sound signal superimposed on direct voltage U t , this signal being passed fully to the common output line above resistor 20 via transistor 19 in circuit B, individual to the register note, when the input current i to the transistor base exceeds i z . The build-up to this condition depends on the instantaneous voltage U s  and on the resistor 17 individual to the register note; resistor 17a is added if voltage rather than current control is required. Key switches 12 may be replaced by key position-sensing devices such as photo-electric, saturable-core reactor or air-dielectric capacitor types (Figs. 3, 4, 5, not shown). The signals to circuits B may be taken direct from these devices, giving build-up dependent only on key displacement, or such a device in place of switch 12 in circuit A may initially provide position-dependent voltage U s , superseded by a rising time-dependent voltage when the latter is the larger (Fig. 7, not shown). Resistor 17 again controls the current taken by an individual note circuit B. To improve resemblance to sounding of an organ pipe, a direct voltage source U v  individual to each register note is introduced in series in the ground line (Fig. 6 not shown) between resistors 16 and 20 to distort the audio signal to an extent depending on the value of V v  and on the progress of the build-up.
Patent GB-162626-A (GB)
Title: Improvements in or relating to spray carburettors for internal combustion engines
IPC: F02M19/035
Filed: 1921-04-30
Abstract: 162,626. Maquet, M. E. April 30, 1920, [Convention date]. Drawings to specification. Spray carburettors.-A cross-shaped member is held by a cap on the top of the fuel nozzle to divide the issuing stream. It is formed by four blades connected along the longitudinal axis of the nozzle with the upper parts tapered and the lower formed into lugs on which the cap bears. The cap has admission ports to allow air to enter and mix with the fuel after spraying.
Patent GB-668702-A (GB)
Title: Improvements in or relating to shaft furnaces, especially blast furnaces, provided with charging devices having charging hoppers
IPC: C21B7/18
Filed: 1950-05-18
Abstract: 668,702. Charging shaft furnaces. TESCH AKTIEBOLAGET, T. A. May 18, 1950 [June 1, 1949], No. 12497/50. Class 51 (ii). The bottom closure of the charging hopper of a shaft furnace comprises two conical valve members arranged one below the other, the lower valve being smaller than the opening in the charging hopper so that it can be raised above the opening together with the upper valve to allow material to be distributed to the central zone of the furnace, or lowered below the opening while the upper valve is raised above the opening to allow material to be distributed round the periphery of the furnace. Material from the main rotatable hopper C passes into a lower hopper B when the bell 3 is lowered. The bottom opening of the hopper B is closed by two conical bell valves 9, 25, the lower bell 25 being smaller than the opening and shaped so that it can fit inside the upper bell 9. When lowered into the position shown, the bell 25 co-operates with a frusto-conical distributer 14 mounted in the top of the furnace A so that by raising the upper bell 9 material is fed to the periphery of the furnace. To feed material to the central zone of the furnace, the bell 25 is raised to fit inside the upper bell 9, and the bells are raised together to allow material to fall through the centre of the distributer 14. The distributer 14 is provided with a cylindrical extension 18, and ribs 17 are provided on the bell 25 and distributer 14 to guide the material radially toward the wall of the furnace. A lining 15 protects the wall of the furnace. The upper bell 9 is made larger than the opening in the hopper B so that it provides a gas-tight seal for the furnace when lowered.
Patent GB-1406906-A (GB)
Title: Method of producing highly aromatized low-sulphur hydrocarbon  stock and uses thereof
IPC: C10G47/00
Filed: 1973-03-15
Abstract: 1406906 Cracking &c INSTITUT NEFTEKHIMICHESKOGO SINTEZA IMENI AV TOPCHIEVA AKADEMII NAUK SSSR 15 March 1973 12595/73 Heading C5E A hydrocarbon stock that is high in aromatics but low in sulphur is obtained from a vacuum gas oil with a sulphur content of 0À6 to 3À2% by weight by first subjecting it to destructive aromatization over a catalyst at a temperature of 500‹ to 620‹ C., a pressure of 5 to 50 atmospheres, a space velocity of 1 to 10 hr.<SP>-1</SP> and a hydrogen/stock ratio of 500 to 3000 Nm<SP>3</SP>/t, fractionating to obtain a fraction boiling between 200‹ C. and an upper limit between 300‹ and 400‹ C., and isolating an aromatic concentrate from this fraction. The preferred catalyst for aromatization is molybdenum oxide on alumina but other metals of Groups VI and VIII or other solid carriers, e.g. aluminosilicates, may be used. The aromatic concentrate may be isolated by adsorption, e.g. on silica gel, or by extraction, e.g. with phenol, furfural or SO 2 . Naphthalene and C 6  to C 9  aromatic hydrocarbon may be obtained by hydrodealkylating this concentrate. The residue from the fractionation step can be recycled to the destructive aromatization or taken off as product. The aromatic concentrate or the residue or a mixture of the two can be used as feed stocks for the production of carbon black.
Patent GB-233529-A (GB)
Title: Instructional golf clubs and apparatus appertaining thereto
IPC: A63B69/36
Filed: 1924-05-24
Abstract: 233,529. Searle, F. May 24, 1924. Golf and like clubs; golf-practising appliances. -A golf club or the like is provided with a marker consisting of a pencil, chalk, or other solid marking material arranged to protrude from the under surface of the club head. The marker d is inserted in a bush c mounted in the. club head. The position of the marker may be adjusted by a screw e. Instead of passing through the head the marker may be carried by a fitting clamped, screwed or otherwise secured to the head. In using the club, a piece of linoleum marked with a white patch to indicate the position of the ball is placed on the ground, and the character of the stroke is deduced from the mark made by the, passage of the club head over the linoleum.
Patent GB-767800-A (GB)
Title: Means for cooling gas turbines
Inventor: TERRELL BASIL JOSEPH
IPC: F01D5/08
Filed: 1952-05-20
Abstract: 767,800. Gas turbines. MAXWELL, D. C., and PARSONS & MARINE ENGINEERING TURBINE RESEARCH & DEVELOPMENT ASSOCIATION. May 19, 1953 [May 20, 1952], No. 12787/52. Class 110 (3). A gas turbine bladed rotor disc or drum adapted for the circulation therethrough of a liquid coolant is characterized in that the inner ends of the blades comprising a blade row or each blade row are sunk in an enclosed channel beneath the periphery of the disc or drum, so as to provide surfaces for the transference of heat from the blades to coolant circulated through the channel around the inner ends of the blades. In one arrangement, Fig. 1, a turbine disc 1 is channelled inwards to form an annular channel 1a. The disc is provided with blades such as 2 having an inverted T-root fixing 2a; a cap or collar 3 welded to the blades and the disc forms a closure for the channel 1a. Cooling liquid such as water flows through a radial passage 1b through a channel in the root to the channel 1a as shown by the arrows. The channel 1a may be divided into a number of arcuate portions, for instance four, each portion having separate coolant inlet and outlet passages. As shown in Fig. 3, the coolant may pass into the channel from inlets 2c in adjacent blade roots, and may be guided by baffles such as 5 so that it traverses each blade twice; the baffles 4 separate the two streams. The blades are preferably hollow and filled with a heat transfer medium such as water. In another arrangement, Fig. 4, four rows of blades are attached to the drum 6 by a serrated root form of fixing and each row of blades is provided with a cap or collar such as 11 sealing the annular channel 6a. Radial passages 6c are drilled in the drum to carry coolant between a longitudinal bore 6d of the drum and the channels 6a. As shown in Fig. 7, the cap or collar 17 sealing the annular channel may be provided with a groove or indentation 17a in the shape of a crescent between adjacent blades of a blade row to give tangential flexibility and to give additional strength to resist the pressure of the liquid coolant.
Patent GB-777003-A (GB)
Title: Improvements in axial-flow compressors
IPC: F04D21/00
Filed: 1954-05-03
Abstract: 777,003. Axial-flow compressors. SOC. NATIONALE D'ETUDE ET DE CONSTRUCTION DE MOTEURS D'AVIATION, and WEISE, A. May 3, 1955 [May 4, 1954], No. 12825/55. Class 110 (1). [Also in Group XXIX] In an axial-flow compressor in which the velocity of outflow from a rota is supersonic, at least at certain speeds of operation, a row of stationary blades is preceded by orientatable auxiliary blades which are so directed that, at least for certain speeds of operation, the flow is of zero incidence with respect to the auxiliary blades, the chord length of the auxiliary blades being such that the shock wave produced at a stationary blade strikes the next adjacent auxiliary blade and is reflected back so as to pass into the row of stationary blades. The air leaves the rotor with a subsonic relative velocity but a supersonic absolute velocity, producing a shock wave 3, Fig. 4, at the junction between each pivoted auxiliary guide blade 4 and the corresponding main guide blade 2. The shock wave 3 strikes the next adjacent auxiliary blade 4 and is reflected at 3a in a generally downstream direction. Each auxiliary blade 4 is pivoted about its pivot 5 into the direction ot the incident flow. The channels between the blades 2 are of convergent-divergent form. In a modification, the auxiliary blades 4 are not pivoted but are of elastic material with fixed trailing ends and are elastically deformed to bring their leading edges into the direction of the incident flow. In this case, as the transition between the blades 4 and the blades 2 is not sharp, the single shock wave is replaced by a network of shock waves radiating from the finite area of transition. In a further modification, instead of forming a continuation of a main blade, each auxiliary blade has its pivot 5 situated at a point midway between the leading edges of two adjacent main blades. Fig. 7 shows an arrangement for automatically pivoting each blade 4 into the direction of the incident flow. The pressures on the two sides of one of the blades 4 are detected at orifices 8, 9, the respective pressures being communicated by way of ducts 10, 11 in the blade 4, ducts 10a, 11α in the pivot spindle 7, and pipes 12, 13 to the interior and exterior respectively of capsules 14. Any difference between the two pressures causes a displacement of the capsules 14 and hence of a piston valve 20 whereby pressure oil is fed to one of the pipes 22, 23 to move a piston 17 in the appropriate direction to bring the blades 4 into the direction of incident flow. The blades 4 are connected to each other and to the piston 17 by levers 19 and linkage 18. The ducts 10a, 11a may be drilled through opposite ends of the spindle 7 instead of being drilled side-by-side.
Patent GB-213150-A (GB)
Title: Improvements in and relating to wash tubs
IPC: D06F1/00
Filed: 1923-05-14
Abstract: 213,150. Vanatter, P. O. May 14, 1923. Wash-tubs.-The tub, divided by radial partitions, is rotatably mounted so that any of the compartments may be brought to the operator's position, or over a heating-device 14 or above a discharge pipe 17. Removable plugs 13 permit communication between the compartments when desired.
Patent GB-1091389-A (GB)
Title: Improvements in or relating to fire extinguishing systems
IPC: A62C3/02
Filed: 1966-03-23
Abstract: 1,091,389. Fire extinguishing system. WALTER KIDDE CO. Ltd. March 23, 1966 ,[March 24, 1965], No. 12893/66. Heading A5A. A fire extinguishing system comprises a trunk-line duct system having outlets 15 extending into desired portions of a building and normally supplying air for ventilation from an air conditioning system 10 but in the event of fire adapted to supply foam from a foam generator 12, valves 18 and 19 selectively controlling the admission of air for ventilation and foam to the duct system. Each outlet 15 has a valve 20. The system may be operated manually or automatically by a fire-detection device arrange to operate the various valves. Preferably opening of the valve 19 is delayed until the valve 18 has been closed. The valves 20 may selectively be closed during distribution of foam through the duct system, each valve normally being held open by a counter-weight and closeable by energising a solenoid.
Patent GB-749375-A (GB)
Title: Method for the separation of solids from a liquid
IPC: B03D3/06
Filed: 1953-05-08
Abstract: 749,375. Purifying sugar liquids. ECREMEUSES MELOTTE SOC. ANON. May 8, 1953. [May 8, 1952], No. 12897/53. Addition to 730,632. Class 127. [Also in Group I] Raw sugar juice is supplied by pipe 8 and orifice 10, Fig. 1, to centrifugal apparatus A of the type described and claimed in Specification 730,635, [Group II] where the juice, together with air drawn in at 11, is spread out by rotary vanes 6<SP>1</SP> on the inside of a rotary cylinder 1. The mixture escapes horizontally from the lower edge of the cylinder 1 and after meeting impact surfaces 12 falls as a homogeneous air-liquid emulsion onto an inclined plane 13 where, just before it enters a decantation vessel 14, electrolyte is introduced at a controlled rate from a tank 18 through cock 17<SP>1</SP> and conduit 17. Mixing is assisted by a baffle 20 over which the mixture flows into the vessel 14, sand and the like sliding directly to a conduit 16. The vessel 14 may be heated by steam entering at 22 and leaving at 23. Within the vessel, a flocculate of moist solids and air rapidly forms and rises to the surface of the liquid whence it is removed to a riser pipe 25 by curved skimmers 27. Clarified liquid extending up to the level N is discharged through an adjustable outlet 37 in an air-lock 36. The flocculate of air and moist solids passing down the pipe 25 is deaerated by a pump 38 and reheated in a heatexchanger 40, whence it passes at 43 to the trough of an inward-flow rotary drum filter (not shown). In Fig. 5, the electrolyte in the form of liquid, powder or granules is distributed immediately beneath the impact zone 12 by a rotating dish 56. the proportion being regulated by a pH meter 57 acting directly on a mechanism 17<SP>1</SP> controlling the supply, for example, or on a servomotor acting on the distributer for the electrolyte.
Patent GB-1455170-A (GB)
Title: Bipolar memory cell
IPC: H01L21/8222
Filed: 1974-03-22
Abstract: 1455170 Integrated circuits INTEL CORP 22 March 1974 [25 April 1973] 12901/74 Heading H1K An integrated bipolar memory cell comprises, in a common semiconductor body, first and second mutually isolated zones 41, 42 of the same conductivity type, the first zone 41 serving as a common collector region for first and second base-emitter cross-coupled flip-flop transistors 10, 11 and the second zone 42 serving as a common collector for third and fourth transistors 14, 15 having their bases connected to the bases of the second and first transistors 11, 10 respectively. The base regions of the third and fourth transistors 14, 15 have extensions 46, 71a which constitute resistors, preferably of the "pinched base" type having diffused regions 47, 48 of the opposite type thereover. Fig. 2 shows a 2 x 2 portion of a memory array in which all the flip-flop transistors of a first row are formed in zone 41, those of the next row being formed in a third isolated zone 43 spaced from zone 41 by zone 42 which contains the third and fourth transistors and the resistors of all the memory cells of both rows.
Patent GB-569892-A (GB)
Title: Improvements in beams and pillars for supporting building boards
IPC: E04C3/36
Filed: 1943-08-11
Abstract: 569,892. Beams, pillars etc.; windows. HAY, H. M. Aug. 11, 1943, No. 12969. [Classes 20 (iii) and 20 (iv)] Beams or pillars for supporting boards are builtup of metal strips a spaced apart at intervals by wooden, fibre or like non-resonant blocks b. Bolts or wood screws secure the strips to the blocks. The strips may be channelled, with the flanges embracing the blocks, or engaged in grooves. Boards may be secured to the pillars by screws, &c., passing through facing strips j with inturned edges or T-shaped to enter between ends of adjacent boards. Fig. 2 illustrates the provision of brackets e held by wood screws d and forming the framing for a pane of glass f. At their upper and lower ends pillars may be seated in strips l, k, attached to the ceiling and floor respectively. Brackets d may be secured to one of the strips a for retaining a glass pane f.
Patent GB-996392-A (GB)
Title: Improvements in or relating to belt drive mechanisms
Inventor: JONES HAROLD GEORGE
IPC: F16H7/20
Filed: 1963-04-02
Abstract: 996,392. Belt tensioning devices. BURCAT DEVELOPMENTS Ltd. March 31, 1964 [April 2, 19631, No. 12971/63. Heading F2Q. An idler roller 10 for a belt B is rotatably mounted on an axle 13 which carries at one end a frusto-conical member 21, whose smaller diameter corresponds with that of the roller 10, the member 21 being mounted with respect to side walls 11 by an eccentric pivot pin 22. The left-hand end 14 of the axle 13 and the pivot pin 22 are mounted in self-aligning bearings 16, 23 carried by threaded adjusters mounted between side walls 11. Initially, the belt tension on the left-hand side is made greater than that on the right so that the belt moves towards the right to engage the member 21 thus causing it to rotate about the pivot pin 22 and increase the belt tension. The belt then moves back to the left and the process is repeated. Rotation of the member 21 is limited by a wire arm 31 co-operating with abutments 32, 33.
Patent GB-934324-A (GB)
Title: Improvements in and relating to cabinets
IPC: E05B65/00
Filed: 1962-04-04
Abstract: 934,324. Cabinets. S. J. DOWNHAM, and H. DOWNHAM. July 12, 1962 [April 4, 1962], No. 12980/62. Class 52 (1). [Also in Group XXV] A bathroom cabinet has a safety catch comprising a U-shaped rod whose longer arm rotates in a bore in the cabinet top 6, and is retained therein by a nut 14, and whose shorter arm may be located either in a second hole in the top 6 or in a hole 21 in the door top 20 to lock the door, the rod being raised and turned for this purpose by means of the portion 15. Conversely, the longer arm may be located in the door and a recess provided for the nut 14: a single hole in the top 6 is then required. The holes in the top 6 and door at 20 are eyeletted at 9, 11 and 22. Spring catch means 18 and 19 are provided. The longer arm of the U- shaped rod may be spring loaded.
Patent GB-703316-A (GB)
Title: Improvements in tread stitcher for tire machine assembly
IPC: B29D30/28
Filed: 1952-05-22
Abstract: 703,316. Tyre building apparatus. FIRESTONE TIRE & RUBBER CO. May 22, 1952 [Dec. 3, 1951], No. 12987/52. Class 144(1) In a tread stitching apparatus comprising a pair of stitching heads 35 each mounted on a carriage 11 supported on a frame 18, the two carriages being movable simultaneously in opposite directions axially of a tyre building drum 12, a rotatable stitching disc 10 is mounted on each head 35 and is adapted to be forced into contact with a tyre band on the drum by fluid pressure means 14 having an extensible flexible wall. In the arrangement shown the fluid pressure means 14 comprises a bellows chamber and such an arrangement provides different load-deflection characteristics for different supply pressures thereby providing for accurate predetermined stitching pressures over the tread and sidewall length for any given tyre band. As shown the carriages 11 are mounted on rollers 16 to run on rails 17 and are driven by a motordriven shaft 21 having oppositely screw-threaded ends 24, 25 to co-operate with corresponding nuts 26, 27 fixed to the respective carriages. The stitching heads each have a screw-threaded shank 43 received in a nut 45 in the respective carriage to provide initial height adjustment of the stitching head, a spring-loaded plunger 48 engaging in a groove 49 in the shank 43 to prevent rotation of the head after adjustment. Each bellows chamber 14 is provided with end plates 36, 37, the plate 36 being fixed to the head 35 and the plate 37 acting on a pivot pin 38 carried by a lever 33, one end of which rotatably supports the stitching disc 10 and the other end of which is pivoted to an extension of the head 35. The lever 33 provides a 2: 1 reduction between the pressure exerted by the bellows and the pressure exerted on the tread by the stitching discs. Air pressure is conducted to the bellows by flexible conduits 42 which allow traverse of the carriage 11 axially of the drum 12, limit switches being provided at each end of the traverse.