baber/WOPTO huggingface dataset:
Patent GB-533858-A (GB)
Title: Improvements in or relating to heat exchange or other apparatus comprising parallel paths for the flow of fluid
IPC: F28F27/02
Filed: 1939-12-05
Abstract: 533,858. Tubular heat exchangers; steam superheaters. SUPERHEATER CO., Ltd., and ROBINSON, E. A. Dec. 5, 1939, No. 3:509. [Classes 64 (iii) and 123 (iii)] The inlet header 1 of a superheater or other heat exchanger is provided with a tube 6 having apertures 10 through which the steam or other fluid flows into the header, the apertures being graded in size or spaced according to the required flow in the respective heating elements 5. In a superheater, the apertures are relatively large or are more closely spaced near the inlet. The diameter of the tube may increase form its inlet to its closed end.
Patent GB-1212094-A (GB)
Title: Pulse modulated beam intruder detector
Inventor: SHORROCK STANLEY
IPC: G08B13/183
Filed: 1968-07-02
Abstract: 1,212,094. Intruder alarms. SHORROCK DEVELOPMENTS Ltd. 2 July, 1969 [2 July, 1968], No. 31509/68. Heading G4N. [Also in Division H3] An intruder alarm is actuated by detectors, Fig. 2, upon simultaneous interruption of two or more pulsed beams of light or infra-red radiation produced by an oscillator, Fig. 1. The oscillator TR1, R1, Cl drives a monostable multivibrator TR2, TR3 whose pulse width is varied by a resistor R5. The pulses are passed through a Zener diode D6 to amplifiers TR4 TR5 and TR4, TR6 to control filament lamps L1, L2. The lamps and oscillator are contained in an elongate rectangular box mounted vertically on a wall of a room. The lamps are mounted at the top and bottom of the box and are provided with collimator lens to produce two horzontal beams two feet apart. The front of the box may be covered with an infra-red filter. Alternatively, light from a single lamp is reflected by mirrors from the top and bottom of the box. The directions of the beams are adjusted after removing the infra-red filter and adjusting R5 in the monostable multivibrator so that the beams are continuous. The detectors, Fig. 2, comprise photo-transistors TR11, TR18 whose outputs are amplified and fed to diode pumps D11, D12 and D13, D14. The output levels of the pumps are determined by the combination R21, C11. The pumps form an AND gate controlling a Darlington pair TR15, TR16 which powers an alarm-actuating relay E. If both light beams are interrupted, the output levels of the photo-transistors and the diode pumps are reduced to zero, and the alarm is actuated. The stabilized mains supply shown for the detector may be also provided for the oscillator and lamps. Furthermore, the emergency supply shown for the oscillator may be provided for the detector. The emergency supply comprises a diode D8 which, in the event of a mains supply failure, becomes forwardbiased to allow a battery B to supply power. A relay A is de-energized closing contacts A1, A2 and shorting out resistors R13, R14 to maintain lamps L1, L2 at the correct brilliance.
Patent GB-193173-A (GB)
Title: Improvements in or relating to foot-operated pumps, also applicable to hand operatedpumps
IPC: F04B33/00
Filed: 1921-11-24
Abstract: 193,173. Routledge, W. Nov. 24, 1921. Oscillating - cylinder pumps; actuating by hand and foot power; valves and cocks, arrangement of. - A cranked pedal or hand lever u, pivoted at d, is connected directly to the piston of an oscillating cylinder pump, so as to produce a toggle-action on the piston when the pedal is depressed. The cylinder rocks about the pivot e and is fitted with an automatic delivery valve i, while the piston is guided by a block k and carries an automatic inlet valve n. The pivot d is carried by pairs of links b, c, the links b being secured to the pivot e and the links c to the base-plate. A screw-adjustment with a lock nut t is provided between the pedal and the piston. C-springs v maintain the pedal in a lowered position when out of use.
Patent GB-1119795-A (GB)
Title: Steering wheel lock
IPC: B60R25/021
Filed: 1965-07-26
Abstract: 1,119,795. Vehicle locking devices. J. VOSS [trading as JOSEF VOSS K.G.]. 26 July, 1965 [30 July, 1964], No. 31715/65. Heading B7J. [Also in Division E2] A steering wheel lock operating a bolt 5 radially movable into the steering column has a " locked " position H in which a spring biased ignition switch 6 is broken and the bolt 5 moved into the column, a " garage " position G where the switch is broken and the bolt withdrawn, a " drive " position Z where the switch is made and the bolt withdrawn and a " starting " position A identical to the drive position and where the starting circuit is also made. All these positions may be selected with or without the use of a key, but once locked then the lock may only be released by a key. The mechanism comprises a rotating cylinder 3 in a cylinder lock 4, pins 7 being disposed in the cylinder 3 and sprung pins 8, 9 in the casing 4. The pins 7 abut the fatter pins 9 in the " garage " position, Fig. 4, with the key inserted and at other times the pins 9 merely abut the cylinder 3 and do not prevent its rotation. When the key is inserted in the " garage " position the pins 7 force back the pins 9 so that the key may be withdrawn. On its end face the cylinder 3 is connected to and may be rotated by a knob 10 in which a catch 11 pivoted at 13 is mounted to disengage a catch pin 17 from an arcuate slot 18 on the underside of the knob base 10<SP>1</SP>, which slot extends between the " garage " to the " starting " positions, Fig. 6. The pin 17 can be forced out of the groove 18 by the bevel on catch 11 to the undersurface of the base 10<SP>1</SP> by turning the knob 10 or the inserted key and depressing the catch 11. When the vehicle has been stopped and secured the cylinder 3 is in the " locked " position H in Fig. 5, and held from rotation by pins 8 and the bolt 5 is engaged. Insertion of the key pushes back the pins 8 and allows the cylinder to rotate 90 degrees to the " garage " position where the pin 17 enters the groove 18. The key is then removed and the knob and cylinder 3 can then be rotated between the " start and " garage " positions, where the bolt 5 is removed but the knob and cylinder 3 are prevented from moving into the " locked " position by the pin 17 which forms a rotation stop against the end of groove 18.
Patent GB-1148923-A (GB)
Title: Improvements in and relating to the bulk packing of tetrahedral containers
Inventor: DIXON NORMAN FRANCIS
IPC: B65D75/50
Filed: 1966-07-14
Abstract: 1,148,923. Packaging tetrahedral containers. TETRA PAK Ltd. 7 April, 1967 [14 July, 1966], No. 31724/66. Heading B8P. The hexagonal carriers 3 of Specification 1,148,924 are placed in an outer container 1 to rest in a stack on one another. Lugs 5 may be placed between adjacent carriers 3 to take the weight. The bottom carrier is taped in place as at 4. The mouth may be flared as at 2 to facilitate insertion.
Patent GB-665857-A (GB)
Title: Method and apparatus for the elution of sugar and/or juices from sliced beets and other extractable materials
IPC: C13B10/10
Filed: 1948-12-08
Abstract: Extracts from oil seeds are made by continuously moving the material counter-current to an extracting-liquid through a series of extracting zones in which the material is kept completely immersed and free from contact with the air; preferably the material is heated during its movement.  The liquid adhering to the material at the end of the treatment is drained off and returned to the extracting zone. Apparatus comprises two chambers constituted by upright towers 1, 2 connected by a cross-chamber 3, each chamber containing <PICT:0665857/III/1> a conveyer screw substantially filling the chambers and extended as near as possible to the next following screw.  Guide bars in the chambers prevent the material from being carried round by the screws.  Each of the chambers is surrounded by heating-jackets 6, the supply of heat to which can be regulated so that the material can be heated rapidly to the required temperature. The material is fed in through an opening 9 in the tower 1 and is discharged from an opening 11 in the tower 2, the extracting-liquid being injected from a tank 14 through a pipe 15 adjacent the opening 11 and removed through a strainer 18 by a pipe 17.  Above the conveyer in the tower 2 is a presser device which may consist of a pair of arms 27 curved to exert a pressure on the material and rotated rapidly so as to express liquid from the material before it is discharged, the liquid falling back into the extraction chambers. The material is further pressed to remove adhering liquid after leaving the apparatus and the expressed liquid is fed back into the chambers.  In a modification, a screw conveyer, driven at a more rapid rate than the main conveyer is mounted in a frusto-conical strainer at the upper end of the final chamber.
Patent GB-850211-A (GB)
Title: Improvements in or relating to propagating circuits for crosspoint switching networks
IPC: H04Q3/52
Filed: 1957-10-11
Abstract: 850,211. Automatic exchange systems. WESTERN ELECTRIC CO. Inc. Oct. 11, 1957 [Dot. 19, 1956], No. 31823/57. Class 40 (4). In a system in which connections are set up over a plurality of cross-points by means of markings extended over the stages, " propagator " circuits provided for relaying the markings, comprise a gas diode fired by the markings to introduce a pulse from a low impedance source. As shown two switching stages comprising 11, 13 cross-point diodes 21, 39 are provided with intervening propagator circuits 12. When a markings is applied to terminal 20 to fire cross-point tubes 21, the resulting pulse received over condenser 25 fires tube 26, the resistance 24 ensuring that the firing pulse is sufficiently long for the tube to be still conducting when the next pulse from the low impedance source 30 occurs. This pulse (limited by diode 33) is thus applied to tubes such as 39, one of which is marked by potential on lead 22 and fires. The resulting lowering of potential of its anode allows the hitherto back-biased diode 23 to conduct to complete the connection. On cessation of the pulse from source 30, diode 26 is extinguished by the fall in potential across resistor 32. When a through connection is established the terminal voltages are reduced to a value just sufficient to sustain the conduction of the cross-point tubes in the selected path, those in the unselected path being thus extinguished. The pulse source 30 may be made operative only whilst a setting up operation is in progress. Specifications 704,108, 770,936, 814,952, 850,212, 850,213 and 850,214 are referred to.
Patent GB-1533006-A (GB)
Title: Valve
IPC: F16K1/12
Filed: 1976-07-30
Abstract: 1533006 Valves ISHIKAWAJIMA-HARIMA JUKOGYO KK 30 July 1976 31847/76 Heading F2V An ovoid valve member 3, Fig. 2, is connected with a piston 8 having opposite faces subjected to pressures upstream and downstream of the valve seat 6 so that fluid forces on the valve member are at least partially balanced. The valve is coupled with the piston by a cranked lever 4 of aerofoil section and may be operated by a handwheel 16 or an arm keyed to the pivot 5. A small clearance around the piston 8 allows leakage flow which may be cut-off by a screw 15 when the valve is closed. The valve may also be operated by a further piston (18) Fig. 5 (not shown). In Fig. 11, the valve has a linear movement and is maintained in alignment with its seat by a projection 30 in engagement with a recess 31 in the housing. Actuation is effected by a handwheel 42 and a lever 40, by rack and pinion (43, 44) Fig. 14 (not shown) or by a piston (47) Fig. 15 (not shown). In this embodiment, the screw 15 is replaced by a valve 37 in a balance tube 35. A further embodiment has a valve member with a core 50 connected to a pair of pivoted links 56, 57, the link 56 having its pivot 53 connected to a handle (66) Fig. 17 (not shown). Actuation may alternatively be effected by a fluid-operated diaphragm or by solenoid-operated valves (69) Fig. 20 (not shown) controlling the piston 59. With the duct 63, Fig. 16, closed and a spring load provided on the left-hand side of the piston 59, the valve member 3 opens in response to excess inlet pressure.
Patent GB-209558-A (GB)
Title: Improvements in or relating to valves
IPC: F16K1/12
Filed: 1922-11-22
Abstract: 209,558. Blakeborough, R. A., (Larner- Johnson Valve & Engineering Co.). Nov. 22, 1922. Fluid-actuated valves. - A stop or throttle valve, of the kind comprising a tapered plunger adapted to work in a cylinder arranged axially in a conduit having a contracted part with which the plunger engages, is provided with means arranged to close the valve in the event of the direction of flow being reversed and with mechanism adapted to arrest temporarily the movement of the plunger in the event of the conduit pressure rising abnormally high. The plunger 3 adapted to engage a seat 4 has a flexible packing collar 24 and works in a cylinder 2 supported by webs 5 from an outer casing 1. The nose of the plunger has a ported nipple 7 leading to an intermediate chamber 8 and controlled by an auxiliary valve 27 mounted on a tubular stem provided with ports 52 and with a non-return ball valve 16. Communication between the chamber 8 and the main actuating chamber 21 is established during the first part of the closing movement through slots 20 in a. sleeve 50 held stationary by a strut 51 and through a passage 15, chamber 19 and valve 22 controlled from outside the casing. As the valve nears its seat the slots 20 are cut off by the partition 9 and the closing movement retarded. In the form shown, on the tubular stem which telescopes over a fixed tube 17 leading to the chamber 19 is provided a rack adapted to be moved by a hand actuated pinion 13. In a modification this pinion is itself actuated by a forked rack operated by a screwed spindle.. To prevent water hammer a control valve 62 is arranged to control the flow between the chambers 19, 21. This valve is actuated against the action of a spring 58 by a floating lever 44 one end of which is connected by links and lever to the main plunger while a toothed rack 47 is suspended from the other end. In the event of abnormal pressures developing the rack 47 is locked in position by a pressure actuated catch 57, so that further movement of the main valve closes the valve 62 and thus arrests the movement of the main valve.
Patent GB-440912-A (GB)
Title: Improvements in methods of and means for deriving direct from alternating currents
IPC: H02M3/33
Filed: 1934-11-06
Abstract: 440,912. Converting. BROWN, A. J., and BAIRD TELEVISION, Ltd., 58, Victoria Street, Westminster. Nov. 6, 1934, No. 31907. [Class 38 (ii)] In order to obtain steady D.C. at a voltage suitable for energizing the anode circuit of a cathode ray tube in a television reeeiver, A.C. from a low frequency source (25 to 100 cycles), is first converted to high frequency and then rectified and smoothed, the necessary voltage transformation being effected either before, after, and partly before and partly after the frequency conversion. In one arrangement, Fig. 1, a high frequency oscillation generator comprising a pair of valves 2 connected in push-pull relationship to a low frequency input transformer 1 and to a high frequency output transformer 5 is used in association with a rectifier 8 and smoothing circuit 9, 10. In another arrangement, Fig. 2 (not shown), the frequency converter comprises a condenserdischarge tube relaxation oscillation generator fed from the low frequency A.C. source through a valve rectifier. Further, in a television receiver, the anode potential for the cathode ray tube may be obtained by rectifying and smoothing part of the output from the higher frequency scanning oscillator.
Patent GB-1276692-A (GB)
Title: A magnetic head and a method for manufacturing the same
Inventor: YAGI MOTOI
IPC: G11B5/235
Filed: 1969-06-24
Abstract: 1276692 Magnetic heads TOKYO SHIBAURA ELECTRIC CO Ltd 24 June 1969 [26 June 1968 28 June 1968 5 Dec 1968] 31907/69 Heading G5R A void space 13 between magnetic head core halves 10, 11, at least one of which is C-shaped, is covered by a wedge-shaped lip 15 formed by plastic flow of the C-shaped half 10. The head is made by vapour-depositing beryllium 14 on one core half 11 and bonding it to core half 10 with spacing strips (13a, 13b, Fig. 2, not shown) inbetween. The head is then ground to expose the space 13 then the lip 15 formed by using the head in a video tape recorder fitted with a fine abrasive tape. Alternatively the spacing strips may be replaced by a soluble resin layer (13c, Fig. 3, not shown) subsequently dissolved in methylene chloride. The core halves are of sendust alloy and the lip 15 is maintained in use by the abrasive action of the tape.
Patent GB-1217415-A (GB)
Title: Triazine derivatives and pharmaceutical formulation and processes for making same
Inventor: MAMALIS PATRICK
IPC: A61K31/53
Filed: 1968-07-04
Abstract: 1,217,415. Triazine derivatives. VITAMINS Ltd. 9 June, 1969 [4 July, 1968], No. 31970/68. Heading C2C. [Also in Division A5] Compounds of the general formula (Ar = Ph substituted by at least one nitro group and optionally substituted in addition by at least one halogen atom or at least one C 1-6  alkyl group; R 1  = C 1-4  alkyl; R 2  = H or C 1-4  alkyl) and their acid addition salts are prepared by (a) reacting with R 1 R 2 CO in the presence of a strong acid or (b) reacting a compound of the formula (B = OH) or a reactive derivative with ArCH 2 OH or a reactive derivative, optionally followed in either case by salt formation. The preparation of 3-nitrobenzyl bromide is described.
Patent GB-728250-A (GB)
Title: Improvements in or relating to methods of manufacturing rail supports for rail fastenings
IPC: E01B9/40
Filed: 1952-12-17
Abstract: 728,250. Making railway permanent way. RIEDENER, F. Dec. 17, 1952 [Jan. 15, 1952], No. 32048/52. Class 83 (2). In a method of making rail supports 1 for a rail fastening of the type having upstanding ribs 2 for guiding the rail and recesses 3 for the head of a clamping bolt securing a clip, the recesses are formed by cold punching an approximate shape 6 and finally deforming the rib over a shaped mandrel II to the outline c by rolling or forging. Specification 719,361, [Group XXX], is referred to.
Patent GB-307094-A (GB)
Title: Improvements relating to bicycle lamps
IPC: B62J6/00
Filed: 1927-11-29
Abstract: 307,094. Aslin, H. Nov. 29, 1927. Tell-tale and otlter devices external to lantern for transmitting light to definite points. -A small mirror 1 is fitted in front of and above the source of light 4 of a bicycle lamp and reflects a portion of the light rearwardly and downwardly through a thin straight tube 3 on to a red glass 2 at the rear of the bicycle, so as to form a rear light without the use of a second lamp.
Patent GB-929062-A (GB)
Title: Polyvinyl ester dispersions and process for preparing same
IPC: C08F18/04
Filed: 1959-09-21
Abstract: Aqueous dispersions of a polyvinyl ester or of a vinyl ester copolymer are prepared by polymerizing at least one vinyl ester, particularly vinyl acetate, in an aqueous emulsion containing, calculated on the weight of the resulting dispersion, 0,1 to 15% of a water-soluble cellulose derivative, 0,01 to 10% of an alkali metal salt of a hydroxydiphenyl, 0,01 to 10% of an alkali metal salt of an inorganic and/or organic acid and 0,001 to 10% of a semi-ester of a dicarboxylic acid with a polyalkylene glycol or polyalkylene glycol derivative as such or in the form of an alkali metal salt of such semi-ester.  The water-soluble cellulose derivative may be hydroxyethylated cellulose, the hydroxydiphenyl is preferably 2-hydroxy-diphenyl, and the alkali metal salt may be derived from phosphoric, boric, acetic, citric or adipic acid. The polyethylene glycol derivative may be a partially etherified or esterified polyethylene glycol, a nitrogen-containing polyethylene glycol, a partially-etherified nitrogen-containing polyethylene glycol, an hydroxyethylated polypropylene oxide or a partially etherified or esterified hydroxyethylated polypropylene glycol.  The reaction mixture may also contain potassium persulphate as catalyst. Specification 466,173 is referred to.
Patent GB-648194-A (GB)
Title: Improvements in or relating to tyre connectors
IPC: B60S5/04
Filed: 1948-12-13
Abstract: 648,194. Tyre connectors. TURNER, W., and ASKEW, G. Dec. 13, 1948, No 32213 [Class 99(i)] A body 1, which includes a sealing member 2 and a spring- urged, valve-unseating pin 5 and is resiliently mounted in and axially movable relative to a casing 20, supports clutch members 13 movable radially outwards to their open and inoperative position upon retracted movement of the body, as by pulling on a flexible inflator pipe attached thereto or by pushing on the rear of the casing, and movable upwardly to their closed and operative positions when the body is moved to its advanced position in which it is normally held, as by a spring 11. A conical nose 19 of the casing coacts with and effects the closing movement of the members which may pivot about a conical portion 16 of the body and have tapered faces 18 and teeth 25 to engage the tyre valve stem.. In modifications, the members are biassed outwardly by resilient split rings surrounding extensions of the members, the body is extended rearwardly, and a nipple for connection to a hose projects at right angles to the body.
Patent GB-1501396-A (GB)
Title: Magnetic separators
IPC: B01D35/06
Filed: 1974-07-19
Abstract: 1501396 Magnetic separation ENGLISH CLAYS LOVERING POCHIN & CO Ltd 17 July 1975 [19 July 1974] 32216/74 Heading B2J A separating chamber in a magnetic separator has an inlet 1 and an outlet 2 for a fluid containing magnetisable particles, and between them a mass 4 of paramagnetic material which is pervious to the fluid, a mass of material being defined by a statement that the fluid spends a large proportion of its time in the chamber actually passing through the mass. A first embodiment, Fig. 1 shows apparatus for separating out ferromagnetic particles from a fluid, e.g. a suspension of kaolinitic clay, and comprises a non-magnetic chamber 1 packed with paramagnetic material in the form of expanded aluminium discs 4. The chamber 1 is surrounded by the coil 5 of a superconducting magnet which provides a field intensity of about 5 Tesla. The particles are subsequently removed by flushing with liquid or air, after removing the magnetic field, possibly using a reducing A.C. current. A second embodiment, Fig. 4 (not shown) has two layers 14, 15, the first 14 of paramagnetic material, e.g. austenitic stainless steel wool, the second 15 of ferromagnetic material, e.g. ferritic stainless steel wool. In use ferromagnetic particles are trapped in the first layer 14, paramagnetic particles in the second layer 15, while non-magnetic particles are carried through with the liquid. Figs. 2 and 3 (not shown) show a concentric arrangement of the embodiment of Fig. 4 (not shown). The packing material 4 may be particulate or filamentary and may have a density which varies along the length of the chamber 1. Preferred dimensions of the particles and the filaments are given, also preferred densities. Other paramagnetic materials mentioned include titanium, vanadium. chromium, manganese, molybdenum, palladium and platinum.