baber/WOPTO huggingface dataset:
Patent GB-1470524-A (GB)
Title: Water boilers
IPC: A47J31/56
Filed: 1973-08-09
Abstract: 1470524 Boiler feedwater control W M STILL & SONS Ltd 8 Aug 1974 [9 Aug 1973] 37743/73 Heading F4A A hot water boiler feedwater inlet valve is connected to respond to a boiler water level sensor defining a preset level and a boiler pressure switch which responds to two preset pressure values; the inlet valve being opened if the water is below said preset level and the pressure has reached the upper preset value, the valve being closed when the pressure reaches the lower preset value regardless of water level, and the boiler heating means (which may be an electric heating element, a gas heater or a steam heating supply) being connected to be turned on when the pressure reaches the low value. In the embodiment shown in Fig. 1 the boiler 2 is provided with two probes 4 which respond to a low water level so as, when both uncovered, to close via an electronic control circuit 6 a relay 16 thus energizing the boiler heating means 28 and connecting one side of the solenoid of a water inlet valve 30 to an electric supply, the other side of the valve solenoid being connected to the other pole of the supply via boiler pressure switch 32 which acts to open the valve if the pressure reaches the higher of two preset pressure values, say 4¢ p.s.i., and closes the valve when the pressure falls to a lower preset value, say 2¢ p.s.i. When the water level rises to cover both probes 4 the boiler heating means is switched off and the valve 30 is closed. Thereafter the pressure switch 32 acts via 36, 38 to turn the heating means only on and off depending on whether the low or high pressure value is reached. In the embodiment shown in Fig. 2 only the pressure switch 32 controls the heating means 28. In both embodiments the automatic arrangements described above can be overriden at 12 to allow the boiler to be initially filled up to the desired level. The boiler may produce steam in addition to hot water.
Patent GB-1139337-A (GB)
Title: Improvements relating to methods of and apparatus for receiving remote control signals
IPC: H02J13/00
Filed: 1966-08-23
Abstract: 1,139,337. Signalling over power circuits. ZELLWEGER Ltd. USTER FACTORIES FOR APPARATUS & MACHINES. 23 Aug., 1966 [27 Sept., 1965], No. 37785/66. Heading H4R. A receiver for a ripple control system of signalling over power circuits comprises, Fig. 1, an electromechanical transducer 3 having a vibrating element 6, 7, 8, which is tuned to the control frequency and arranged, when vibrating at the resonant frequency to intermittently open circuit normally closed contacts 19 arranged across the shunt section of a potential divider from which the charging current of a capacitor 13 is derived. After a period of time, dependent on the time constant of the charging circuit, discharge lamp 15 strikes and relay 16 operates to register the signal. Alternatively the electromechanical transducer contacts may be connected to operate an S.C.R. or transistor arranged as a switch in the charging circuit, Figs. 3 and 4 (not shown).
Patent GB-1342190-A (GB)
Title: Closure
IPC: E06B7/23
Filed: 1972-08-14
Abstract: 1342190 Releasable fastening A WINKHAUS 14 Aug 1972 [13 Aug 1971] 37839/72 Headings E1J and E2A A closure comprises a frame 11, a leaf 12 which is displaceable relative to the frame to a position in which the leaf is against the frame, an inflatable seal 21 on the frame 11, and a drive connection which extends between an actuating handle 24 on the leaf and a pump 15 on the frame, the drive connection transmitting power from the actuating handle to the pump so that the latter can inflate the seal 21 when the leaf is against the frame. The drive connection comprises a pin 25, which transmits pivotal movement of the handle 24 mounted on a leaf arm 23, and a linearly moveable drive member 16 having a fork 17. The inflatable seal 21 is positioned in a channel bar 22 which extends around a frame rabbet 18 and a sealing strip 20 is mounted on and extends around the periphery of the leaf 12 so that, when the leaf is against the frame, the strip 20 is located between the inflatable seal and an arm 19 of the channel bar 22. The pivotal movement of the handle actuates a rod 26 which connects to the pin 25 and actuates a rod 29 which connects to other members, such as a mechanical leaf closing device.
Patent GB-1183693-A (GB)
Title: Process for Manufacturing Product of Cross-Linkable Polymeric Material.
IPC: B29C48/91
Filed: 1968-08-08
Abstract: 1,183,693. Cross-linking by radiation. FIRESTONE TIRE & RUBBER CO. 8 Aug., 1968 [23 Aug., 1967], No. 38029/68. Headings C3E and C3P. A cross-linkable polymeric material is shaped in the uncured state, cooled so that it undergoes a second-order transition and is converted into a glass-like state, and while in this glass-like state it is cross-linked by exposure to radiation without effecting thermal distortion thereof. The process is particularly applicable to SBR and neoprene. By this means very intricate shapes can be cured without damage.
Patent GB-808543-A (GB)
Title: An axle-driving arrangement for a motor vehicle
IPC: F16H3/64
Filed: 1956-12-13
Abstract: 808,543. Change speed and differential gearing. DAIMLER-BENZ A.G. Dec. 13, 1956 [Dec. 16, 1955], No. 38127/56. Class 80 (2). The half shafts 37 of a motor vehicle are driven through a bevel gear differential 23 which can be locked by sliding a positive clutch sleeve 41 leftwards of the Figure, the differential planet carrier 21 also carrying the planet gears 24 of a two-speed gear 22 having its internally toothed annulus 25 integral with a driving crown wheel 15. The planet gears 24 mesh a sun-gear 26 integral with a control sleeve 27 having external teeth 28 which, in the position shown, are engaged with corresponding teeth on a fixed ring 29. The sun-gear 26 is accordingly prevented from rotating and the twospeed gear 22 gives a reduced drive. By operating a lever 44 to slide the sleeve 27 leftwards, the teeth of the sun-gear 26 are brought into engagement with internal teeth 46 on the planet gear and differential carrier 21. The changespeed gear 22 is thus locked solid for direct drive. The differential lock-up clutch 41 is controlled by a lever 45. The change-speed gear control lever 44 and the differential locking lever 45 may be interconnected by linkwork (not shown) arranged so that, e.g., the differential is unlocked in one of the two speeds but locked in the other, or so that the differential is initially unlocked but is locked after a speed selected in the change-speed gear has been established.
Patent GB-996040-A (GB)
Title: Improvements in and relating to plate check valves
IPC: F16K15/10
Filed: 1963-09-27
Abstract: 996,040. Valves. HOERBIGER VENTILWERKE A.G. Sept. 27, 1963 [Oct. 4, 1962], No. 38130/63. Heading F2V. A valve, particularly for a compressor, has a closure member 6 with at least two rigid zones A flexibly interconnected by intermediate zones B, the zones A being loaded by closing forces of different amounts. The member 6 is guided by a washer 5 between the seat 1 and a guard 2 in which loading springs 7 are located, the guard and seat being connected together by a nut 4 and a bolt 3. Oblique slots 12 make the intermediate zones B flexible and these zones may, alternatively, extend chordwise across the closure member or be arranged parallel to the edges of a square member. In a further construction, the closure member is circular and has a spirally shaped flexible centre which is clamped between two washers, spring loading being provided by circumferentially arranged fingers on a spring plate mounted between the closure member and its seat.
Patent GB-852450-A (GB)
Title: New indole derivatives
IPC: A61K31/00
Filed: 1958-11-27
Abstract: The invention comprises compounds of the general formula: <FORM:0852450/IV(b)/1> and their acid addition and quaternary ammonium salts (wherein A and B are straight or branched chain saturated divalent aliphatic hydrocarbon groups with 1 to 3 carbon atoms or, in the case of B, a single bond, and R is a hydrogen atom or acyl group), and the preparation thereof by: (1) condensing a reactive ester of the general formula:  <FORM:0852450/IV(b)/2> (wherein Y is the acid residue of a reactive ester) with a compound of the general formula:  <FORM:0852450/IV(b)/3> or a salt thereof: (2) reducing a quaternary ammonium derivative of a compound of the general formula:  <FORM:0852450/IV(b)/4> (wherein Hal is a halogen atom) by known methods for the reduction of pyridine to piperidine; (3) reacting 3-dimethylaminomethylindole with a compound of the general formula:  <FORM:0852450/IV(b)/5> or (4) when B is a hydrocarbon group, reducing an ester of the general formula: <FORM:0852450/IV(b)/6> (wherein B1 is a single bond or a saturated divalent hydrocarbon group with 1 or 2 carbon atoms and R1 is a monovalent hydrocarbon group) by known methods for converting a carboxylic acid ester group into -CH2OH.  The indole products in which the group -BOR is -OH and is in the 3- or 4-position of the piperidine nucleus may also be made by reducing a piperidone of the general formula:  <FORM:0852450/IV(b)/7> wherein Z is a 3- or 4-ketopiperidino group by known methods for converting the piperidine carbonyl group into a carbinol group which do not involve ring opening.  1-[2-(3-Indolyl)-1-ethyl]-3- and 4-hydroxymethylpyridinium bromide and 1-[2-(3-indolyl)-1-ethyl]-2-(2-hydroxy-1-ethyl)-pyridinium bromide are made by reacting 3-(2-bromo-1-ethyl) indole with the corresponding piperidine carbinol. 1-[2-(3-Indolyl)-1-ethyl]-3-methoxycarbonyl-methyl- and 1-[2-(3-indolyl)-1-ethyl]-4-ethoxy-carbonylmethyl-piperidine are made by catalytically hydrogenating the corresponding pyrdinium bromides, which are made by reacting 3-(2-bromo-1-ethyl) indole with methyl 3-pyridylacetate and ethyl 4-pyridylacetate respectively.ALSO:Pharmaceutical compositions comprise one or more compounds of the general formula:  <FORM:0852450/VI/1> (wherein A and B are straight or branched chain saturated divalent aliphatic hydrocarbon groups with 1 to 3 carbon atoms or, in the case of B, a single bond, and R is a hydrogen atom or acyl group), or an acid addition or quaternary ammonium salt thereof, in association with a significant amount of a liquid or solid pharmaceutical carrier.  They may be administered orally or parenterally and may be in the form of capsules, emulsions, elixirs, powders, powder packets, solutions, suspensions, syrups or tablets.  The compositions have a diuretic and sedative action.
Patent GB-869233-A (GB)
Title: A transistor free-running multivibrator
IPC: H03K3/282
Filed: 1957-12-10
Abstract: 869,233. Road traffic and marine signalling- apparatus. NATIONAL RESEARCH COUNCIL. Dec. 10, 1957 [May 6, 1957; Aug. 28, 1957], No. 38385/57. Class 118. [Also in Groups XL (b) and XL (c)] A free-running multivibrator for operating the flashing lamp of a marine or aircraft signalling device comprises two transistors, each having its collector connected to the opposite base through a circuit comprising a resistor and a capacitor in series. In Fig. 5, the collector and base electrodes are cross-coupled through capacitors C1 and C2 so that the transistors conduct alternately, capacitor C1 being larger than C2 so that transistor TR2 is conductive for a longer period than TR1. Resistors R2 and R5 are connected in series with the capacitors to limit the current flowing into the base electrode of the transistors and the normal base resistors R3 and R4 are connected to the collector electrode instead of to the collector supply terminal to stabilize the oscillation of the circuit with changes in temperature. The potential at the collector or transistor TR2 is amplified by transistors TR3 and TR4 and applied to a number of transistors TR5 to TRn in parallel acting as switches to control the current in a lamp 12 so that a flashing signal is produced. A small battery 26 is provided to ensure that the output transistors are fully cut-off by the drive from transistor TR4, the battery being charged when transistor TR4 is conducting and discharged through resistor R13 when it is not conducting. The capacitors or the resistors of the multivibrator circuit may be variable to vary the frequency of operation and the arrangement can be such that the lamp is on or off for the longer period. A lightsensitive cell 30 is connected between the basis of the transistor to switch the circuit to the off condition of the light during daylight hours. This cell could alternatively be connected between the lower terminals of capacitors C1 and C2 or two cells could be provided, each connected across one of the resistors R2 and R5 (Figs. 7 and 8, not shown). Alternatively, the cell could be replaced by a heat-sensitive device such as a thermocouple. The circuit may alternatively be rendered inoperative during daylight hours by a photo-sensitive resistor connected in series across the supply with a relay which interrupts the supply to the circuit (Fig. 6, not shown). Alternatively, when a relay is used in place of the transistor switching circuit, the photo-sensitive resistance could be connected in series or parallel with the transistor operating the relay (Fig. 2, not shown). The circuit could alternatively control gas vapour liquid or solid supply to a lamp or could operate a stepping or continuous motor.
Patent GB-1001973-A (GB)
Title: Improvements in or relating to dog clutches
Inventor: HENDERSON CYRIL
IPC: F16D23/06
Filed: 1961-10-27
Abstract: 1,001,973. Positive clutches. S. SMITH & SONS (ENGLAND) Ltd. Oct. 29, 1962 [Oct. 27, 1961], No. 38480/61. Heading FC2. In a synchronized dog-clutch, for a motorvehicle automatic transmission, comprising circumferentially toothed driving and driven members 1, 3, and an internally toothed axially slidable clutch ring 8 connected through balk pins 7 to a disc 6 loaded by Belleville springs 26 against a circlip 35 on an operating sleeve 5, a synchronizing friction cone 11 is both axially and rotationally engaged solely by the balk pins 7 through the balk engaging surfaces which are of a radiused chamfer form 15 so that the axial engaging load applied to the synchronizing cone 11 is controlled by the relative axial position and inclination of the balking surfaces such that during clutch engagement, which is effected when the sleeve 5 is moved to the left by a rod-fork 23, 22 actuated by electrically irreversibly driven cams 29, the reaction and relative axial position between the cone 11 and balk pins 7 are equalized between the variably inclined balk surfaces 15 and the Belleville springs 26. Initial engagement of the cone 11 is effected through a spring ring 18 mounted thereon, engaged by a radially inner surface 9 of the balk pins, the balk surfaces 15 of which are relieved in this region and the pins reduced in diameter at 16 to permit both axial, and later, rotational movement of the clutch ring 8 relative to the cone 11 for final dog-clutch engagement. In Figs. 4 and 5 (not shown), final engagement of the dog-clutch is further assisted by the balk pins which are wider to permit greater relative rotary movement between the ring 8 and cone 11, and the balk surfaces are chamfered to match straight chamfers on the engaging dog-teeth. Specification 996,377 is referred to.
Patent GB-1218196-A (GB)
Title: Device for the alignment of a sheet
IPC: B65H9/06
Filed: 1968-08-14
Abstract: 1,218,196. Feeding sheets. ROLAND OFFSETMASCHINENFABRIK FABER & SCHLEICHER A.G. 14 Aug., 1968 [16 Aug., 1967], No. 38776/68. Heading B8R. A sheet 1 passing over a feed table 3 is first retarded and then aligned by front stops 4 which move in the direction of sheet feed by rotation of a shaft 17 by means of a cam 22 through a spring rod 28, which permits extra movement of the cam follower 21, and against an adjustable stop 30 which defines the aligned position of the sheet. The sheet is then released by the stops 4 moving downwards under the control of a cam 31 which acts through a spring rod 33, permitting extra movement of the cam follower 38, to rotate a shaft 16 on which is mounted an arm 13 rotatably supporting the shaft 17. The stops 4, by a combination of the two drives, follow a closed path 44. The upper position of the stops 4 is defined by an adjustable stop 42. Arms 6 pinned to a shaft 5 overlie the stops 4 to prevent over-shooting of the sheet. In the event of a sheet resting obliquely against the stops 4 or of double feed, a magnet 52 is energized to move a pawl 55 into the path of a projection 56 on the lever 20 carrying the roller 21 to prevent lowering of the latter and therefore of the roller 38, whereby the stops 4 do not move to release position. The lever 37, 40 which transmits movement from the cam 31 to the shaft 16 is mounted separately from the shaft 16. A spindle 47 can be used to rotate an eccentric bush 48 carrying the shaft 16 to vary the position of an aligned sheet. The mechanism is duplicated at each side of the feed table, so that rotation of one spindle 47 can vary the direction of alignment of the leading edge of the sheet.
Patent GB-1016409-A (GB)
Title: Improvements in hair curlers
IPC: A45D2/12
Filed: 1964-09-24
Abstract: 1,016,409. Hair curlers. A. M. JEFFERSON. Sept. 24, 1964, No. 38900/64. Heading A4V. A hair curler comprises a cylindrical body 10 of resilient foam material having axial bores 13 arranged circumferentially near the outer surface 11 and opening in the end surfaces 12 to receive, selectively, one leg of a hair-retaining clip 14. The body is preferably of a porous resilient synthetic foam material such as polyurethane having 20 pores per lineal inch. The bores are spaced from the surface 11, and equally from each other, by a distance less than the diameter of the bores. The clip may be a conventional bob pin but is preferably one in which the arms are joined by a flexible part and normally spaced from each other.
Patent GB-901443-A (GB)
Title: Method of treating a portion of the surface of a semiconductive body
IPC: C23C18/16
Filed: 1958-12-10
Abstract: 901,443. Plating; etching semi-conductors. WESTERN ELECTRIC CO. Inc. Dec. 10, 1958 [Dec. 18, 1957], No. 39822/58. Classes 37 and 41. A semi-conductor body is cleaned, plated, or etched over a pre-selected area, without applying a resist to mask the remaining area, by floating the body on the liquid in which the weight and perimeter of the body and surface tension of the liquid are such as to sustain the body on the surface of the liquid. Preferably the liquid is contained in a vessel of limited boundary, e.g. to provide a liquid surface of 7 sq. ins. or less, so that the meniscus formed at the boundary causes the body to centre itself on the concave surface of the liquid as at F, Fig. 2. A spring-loaded light movable electrode 23 is applied to the centre as cathode, and an anode 25 is mounted at the edge with a partition 26 to prevent splashing of the electrolyte. Liquids specified are HNO 3 , HF, or mixtures of inorganic salts, acids or bases, e.g. NiCl 2  with sodium hypophosphite, and ammonium citrate and chloride plus a little ammonium hydroxide. The semi-conductor body may be a bar of germanium 3 mils. thick, or a diffused base transistor of the type described in Specification 809,642, consisting of a p-type wafer coated with an n-type skin, provided with an aluminium strip as emitter, and gold-antimony alloy strip as base contact. Ohmic contact with p-type interior is made through platinum tab using an indium solder. The collector junction is then etched in the apparatus described to remove surrounding area of ntype skin. As shown in Fig. 3E, 30 being ptype germanium, 31 the n-type skin etched from the face having the collector 37 isolated from the emitter 35 and base contact 36.
Patent GB-842836-A (GB)
Title: Improvements in or relating to sound reproducing apparatus
Inventor: YOUNG ARTHUR CHARLES
IPC: H04R19/02
Filed: 1958-12-11
Abstract: 842,836. Cross-over circuits for loud-speaker combinations. ROLA CELESTION Ltd. Dec.11, 1958, No. 40005/58. Class 40 (4). A loud-speaker combination comprises an electrostatic loud-speaker fed with the lowerfrequency signals and a moving-coil or ribbon loud-speaker fed with the high frequencies. As shown a composite filter comprising series inductances 19, 20 and shunt capacitors 12, 13 directs the low-frequency energy via step-up transformer 22 to the electrostatic loud-speaker 29, and the high-frequency energy via a stepdown transformer 14 to the moving-coil speaker 18. This circuit is suitable for connection to a high-voltage high-impedance source. If a lowvoltage low-impedance source is used the transformer 14 may be omitted, Fig. 2 (not shown).
Patent GB-1447542-A (GB)
Title: Method of operating a high-temperature reactor
IPC: G21C19/20
Filed: 1973-08-24
Abstract: 1447542 Nuclear reactors KERNFORSCHUNGSANLAGE JULICH GmbH 24 Aug 1973 [25 Aug 1972] 40315/73 Heading G6C In operation of pebble-bed HTR, coolant gas, e.g. helium, passes downwards through the core and fuel elements containing fertile material are also passed downwards through the core and reach their terminal burn-up in a single pass. The invention aims to produce an axial power distribution whose profile is as flat as possible. The fertile material may be thorium; alternatively, it may be Pu-240 which acts as a burnable poison and whose high neutron absorption also acts to reduce neutron flux in the upper part of the reactor. The U-233 (bred from Th) or Pu-241 (bred from Pu-240) act to increase neutron flux in the lower part of the reactor. The fuel elements may initially contain a Pu-isotope mixture as follows: in which the initial enrichment of Pu-isotopes is 23%. In addition to the use of fertile material, the power distribution profile may be flattened by adoption of the following measures: (i) higher than hitherto speed of passage of fuel elements; (ii) homogeneous distribution of fertile material i.e. fuel element cladding is as thin as acceptably possible (1 cm.) and the coated fuel and/or fertile particles are as small as possible under manufacturing conditions (0À6 mm. diam. at most); (iii) low ratio of graphite to fuel/fertile material; (iv) use of burnable poisons; (v) use of different fuel elements at different radial positions in the core; (vi) core height restricted to less than 5 metres, preferably less than 4 metres; and (vii) disposition of neutron absorbers in the reflector.
Patent GB-1523133-A (GB)
Title: Device for producing a layer of glued particles
IPC: B27N3/14
Filed: 1975-10-02
Abstract: 1523133 Feeding chips on to a moulding belt CARL SCHENCK AG 2 Oct 1975 [25 Oct 1974] 40388/75 Heading B5A A supply 1 of glued wood chips is formed into a layer 10 on a moulding belt 12, the chips having been fed through a plurality of mesh screens 6-8 extending from a common line of origin 9. Air from a blower is fed through a diffuser and screen 4/5, and is said to produce with the screens 6-8 uniform turbulent flow of the chips so that differently sized chips are separated and deposited on the belt 11 in layers of increasing size, and bunching together of "sticky" chips is prevented. Reversed air flow from a second blower deposits layers in decreasing chip size on to the already deposited layers. The mesh screens 6-8 have equal relative angles and mesh sizes greater than the largest chip size. The junction point 9 can be moved, and screen 8 is said to protect the deposited layer from turbulence.