baber/WOPTO huggingface dataset:
Patent GB-364766-A (GB)
Title: Improvements in wheel mountings for ploughs, farm implements, farm carts and other vehicles
IPC: A01B71/04
Filed: 1930-11-26
Abstract: 364,766. Ball bearings. ROWE, G. E., Podymore, Ilchester, Somerset. Nov. 26, 1930, No. 35650. [Class 12 (i).] A wheel hub g is mounted on a spindle b fixed to a vehicle frame a. Carried in a recess in the hub g adjacent the frame a is a ball, thrust bearing and a washer f, the latter preventing the entrance of dust, into the bearing. At the other end of the spindle is a ring of thrust balls o, a race ring n, and adjusting and lock nuts d, e, all enclosed within a cap k screwed on the hub g. Withdrawal of the cap k permits inspection of the ball bearing o. The cap may have means such as a hole closed by a screw m to allow for the supply of lubricant.
Patent GB-488256-A (GB)
Title: Improvements in or relating to packing devices for use between two cylindrical surfaces or the like moving relatively to each other, especially when the relative temperatures of the surfaces vary
IPC: F16J9/20
Filed: 1936-12-30
Abstract: 488,256. Piston rings ; stuffing - box packing. THUNHOLM, K. L. E. Dec. 30, 1936, No. 35703. [Classes 122 (i) and 122 (v)] A piston or shaft packing comprises a closed ring 3 carried by the piston or stuffing-box and having a small area in contact with the piston or box as compared with the area in contact with the cylinder or shaft : the material of the packing having substantially the same coefficient of expansion as that of the cylinder or shaft whereby a constant clearance is maintained around the packing at all temperatures. The ring may be of U or rectangular section and may be locked against rotation, e.g. by pro. jections 8. In order to facilitate mounting the rings may be made in two parts joined together in position to form a rigid ring. Specification 356,599 is referred to.
Patent GB-922324-A (GB)
Title: Nuclear reactor
IPC: G21C1/08
Filed: 1961-10-05
Abstract: 922,324. Nuclear reactors. BROWN, BOVERI & CIE A.G., and BETEILIGUNGS-UND PATENTVERWALTUNGS G.m.b.H. Oct. 5, 1961 [Oct. 29, 1960], No. 35945/61. Class 39 (4). A nuclear reactor is provided with a liquid moderator in which only part of the fuel is immersed, the other part being disposed above the liquid moderator and used to superheat the vapour of the liquid moderator. In Fig. 1 fuel elements 1 are partially immersed in the liquid moderator 2, and the part of the element projecting above the moderator 2 is surrounded by a reflector 4, e.g. BeO, which may be provided with fins. The vapour or steam generated on the moderator 2 is superheated on the region 5 before entering the heat exchanger 6. In Fig. 4 the reflector 4 is constructed in the form of a bridge of BeO provided with borings 9 through which the evaporated medium may flow for superheating in the region 5, which is provided with a heap of balls 10 consisting of fissile material with possibly some moderating material. Figs. 2 and 3 (not shown) have no heap of balls 10 but are provided with the bridge 4. In Fig. 2, the bridge is built up homogeneously from fuel and moderator and may also contain the fuel in the form of cartridges, while in Fig. 3 replaceable annular fuel elements are inserted around the fuel element sleeve projecting above the liquid moderator. Each of the two parts of the reactor is subcritical, and the reactivity of each part can be altered separately. Fig. 5 illustrates a construction for placing a cut-off element into the reactor core. The cut-off element 11 is mounted on a supporting rod 12 held in position by a driving rod or rack 13 which may be moved in the upward direction by a pinion 14. The rack 13 is held in its upper position by a magnet 15. In cases of disturbance the magnet 15 is disconnected by a closed-circuit connection, and the cut-off element 11 drops into the reactor core. The supporting rod is provided with a continuously variable admixture of neutron-absorbing material over its length so that it may be used as a control rod.
Patent GB-939210-A (GB)
Title: Epoxy resin hardener compositions
IPC: C08G59/42
Filed: 1959-10-26
Abstract: The invention comprises a hardener composition for epoxy resins which is liquid at 22 DEG C. and comprises a mixture of the cyclic anhydrides of two or more dicarboxylic acids, each anhydride (taken separately) being solid at 22 DEG C.  Suitable anhydrides specified are:-tetrahydrophthalic, hexahydrophthalic, phthalic, maleic, and the adduct of maleic with alloocimene, myrcene, isoprene and cyclopentadiene.  Epoxy resins are defined as polyepoxide compounds which contain an average vicinal epoxy group content of more than one; those specified are reaction products of epichlorhydrin with bisphenol A, resorcinol, 1,8-bis(p-hydroxy phenyl) pentadecane, glycerine, pentaerythritol and amines; mixtures of epoxy resins are used in Examples 2 and 3. Additives specified are:-tris-2,4,6-(dimethylaminomethyl)phenol, dimethyl benzyl amine, dimethyl dioctadecyl ammonium bentonite, zinc octoate-diethylamino propylamine, and talc.  Use: impregnating electric coils; coating transformers.ALSO:Maleic anhydride adducts are prepared in Examples 1 and 4 by gradually adding alloocimene and myrcene respectively to heated maleic anhydride; further heating is effected and a vacuum applied.
Patent GB-836969-A (GB)
Title: Improvements in or relating to lathe or like cutting tools
IPC: B23B27/16
Filed: 1958-11-11
Abstract: 836,969. Lathe &c. tool-holders. RICHARD, H. J., and LALIME, T. J. Nov. 11, 1958, No. 3R209/58. Class 83 (3). A lathe &c. cutting-tool comprises a holder 4 carrying a bit 1 having a number of cutting- points 10, Fig. 5, and concave faces 3 which are engaged by a shim 7 and a clamping plate 8, the faces providing rake-clearances 3<SP>1</SP> at the cutting edges. The bit may be used in a number of positions equal to the number of cutting points on both sides of the bit. The faces 3 may be of spherical, paraboloidal, ellipsoidal or conical shape, or may have flat surfaces 9, Fig. 5, surrounded by conical &c. surfaces 12.
Patent GB-985795-A (GB)
Title: Electrical switching device
Inventor: JOHNSTON DAVID EDGAR
IPC: H03K17/60
Filed: 1962-09-24
Abstract: 985, 795. Electric selective signalling systems. BOULTON PAUL AIRCRAFT Ltd. Dec. 20, 1963 [Sept. 24, 1962], No. 36292/62. Heading G4H. [Also in Division H3] A device for switching alternating current into a load 11 comprises a transistor 5 connected between the source 6 of alternating current and the primary 2 of a transformer 1 and a further transistor 8 the emitter/collector path of which is connected in shunt with one of the secondary windings of the transformer. Alternating current is supplied to the load 11 when transistor 5 is made conductive and transistor 8 non-conductive and is isolated from the load 11 by making transistor 5 non-conductive and transistor 8 conductive. The impedance of transistor 8 reflected across the primary winding 2 minimises the effect of leakage current in transistor 5. Transistors 5, 8 are controlled by voltages of opposite polarity selected by relay or switch contacts. Control voltages of like polarity may alternatively be used if transistors 5, 8 are of opposite conductivity type. According to the Provisional Specification the load 11 may be connected to the primary or either of the secondary windings of transformer 1. Fig. 2 shows a plurality of circuits of the type shown in Fig. 1 each controlled by opposite polarity voltages from the outputs of valve or transistor Eccles-Jordan bi-stable circuits 1, 2, 4 . . . 32, coupled together by means, not shown, to form a frequency divider. The input terminals of each switching circuit are connected in parallel with an alternating source 6 the frequency of which is much greater than that of pulses fed to the frequency divider 1 . . . 32. The voltages obtainable from the secondary windings 4 of the respective switching circuits are graded in inverse proportion to the frequency provided by its corresponding bi-stable circuit 1, 2, ... 32. The alternating voltage across the load 11 is thus modulated in the form of a stepped sawtooth waveform (Fig. 3) the frequency of which is 1/64 of that of the pulses fed to the frequency divider 1, 2 . . . 32. Digital voltmeters. The invention may be applied to the measurement of the output of transducers energized by an oscillator by generating a voltage in discrete steps and in opposition to that derived from the oscillator. Switching of the devices is controlled by the error between the transducer voltage and the generated voltage in the sense to reduce the error to zero, the generated voltage then being indicative of the transducer voltage. According to the Provisional Specification the transducers may be strain gauge bridges or differential inductors.
Patent GB-1347787-A (GB)
Title: Multi-pass sound muffler
IPC: F01N1/08
Filed: 1971-08-03
Abstract: 1347787 Exhaust silencers TENNECO Inc 3 Aug 1971 [26 Aug 1970] 36446/71 Heading F1B In a silencer a plurality of sleeves 23, 25, 27, an inner tube 19 and a casing 3 define a zig zag flow path between a gas inlet 13 and an outlet 17. The tube 19 has main openings 49 at it's end remote from the inlet 13 for gas flow to the chamber 51 between the tube and the sleeve 23. The sleeves 23, 25, 27 have main openings 53, 57 and 61 respectively for gas flow to chambers 55, 59 and 63 and flow to the outlet 17 through the openings 65 and an outlet chamber 67. The tube 19 has louvre slots 81, 83 intermediate its ends opening to chambers 87 and 89 defined by a member 85 surrounding the tube. Louvre slots 91, 93, 95 are provided in the sleeves 23, 25, 27. The rings 29, 33, 37, 41, 43 and 47 locating the sleeves within the casing define chambers 69 and 75 with the casing ends 5 and 7. The chambers 69, 75 are open to the gas flow path defined by the sleeves through openings 71, 73, 77, in the rings 37, 41, 43 and to the outlet chamber 67 through openings 79 in the ring 47.
Patent GB-922889-A (GB)
Title: Improvements relating to magnetic recording and/or playback devices
IPC: G11B21/04
Filed: 1961-10-11
Abstract: 922,889. Magnetic disc recorders. PHILIPS ELECTRICAL INDUSTRIES Ltd. Oct. 11, 1961 [Oct. 14, 1960], No. 36506/61. Class 40 (2). A disc record 1 carries a conical record surface 10 of some 170 degrees apical angle, which provides a suitable convexity to the opposing flat face of a record/playback head 2, suitably preset by means 11, 13, to enable flotation of the head on the entrapped aircushion.
Patent GB-1239817-A (GB)
Title: Electrical pulse generating apparatus for engine ignition
IPC: F02P15/12
Filed: 1968-08-01
Abstract: 1,239,817. Pulse generating circuits. BENDIX CORP. 1 Aug., 1968 [29 Aug., 1967], No. 36671/68. Heading H3P. [Also in Division F1] An electrical pulse generating apparatus for the ignition of jet or gas turbine engines comprises a combination of a first circuit 5 and a second circuit 6 for supplying to the engine igniter device either high energy pulses for engine starting or low energy pulses for engine operation. The igniter device includes two series connected igniter plugs 21, 22 which are both supplied with the high energy pulses whereas only one of the plugs is supplied with low energy pulses during engine operation, the circuits having a common high frequency coil through which either high or low energy pulses can be supplied to the one igniter plug. The triggering gap 23 is rendered conductive to the discharge of the capacitor 11 through the primary winding 14 to thereby induce a sufficient voltage across the secondary winding 31 to render the control gap 32 conductive to discharge of the capacitor 8. Once the engine is started by high energy sparks resulting from discharge of the capacitor 8, switch 7 is opened to de-energize the high energy circuit 5 and switch 17 is closed to energize the continuous duty low energy circuit 6 wherein discharging of the capacitor 18 is controlled by a sealed gap 36. High tension igniter plugs could be used in lieu of the low voltage plugs illustrated and the inductors 34 and 35 could be replaced by gaps.
Patent GB-395605-A (GB)
Title: Improvements in hollow plates or cells for heat exchange apparatus
IPC: F28F3/12
Filed: 1932-12-30
Abstract: 395,605. Plate heat-exchangers ; heating buildings ; drying-apparatus. BLOXAM, A. G., 30, Southampton Buildings, London.-(Soc. of Chemical Industry in Basle; Basle, Switzerland.) Dec. 30, 1932, No. 36911. [Classes 34 (ii), 64 (ii), and 64 (iii).] A hollow plate for use in heating rooms and in drying or cooling operations comprises plates D to which are secured interengaging spacing ribs F which define a flow path for a heating or cooling fluid. The sides of the spaced plates are closed by metal strips welded to the plates. Ribs F, Fig. 3, of various cross sections may be employed.
Patent GB-1013605-A (GB)
Title: Plasticiser composition
Inventor: KAY RONALD WILLIAM
IPC: C07C69/83
Filed: 1962-09-29
Abstract: Polyvinyl chloride is plasticized with a complex ester composition derived from a dicarboxylic acid monoester alkali metal salt, a 1,4-dihalobutene-2 and a dialkali metal dicarboxylate. In an example, complex esters derived from the salts of phthalic acid and its monobutyl ester are used; other dicarboxylic acids are also specified.ALSO:A complex ester composition is prepared by heating together at least one alkali metal salt of an aromatic or aliphatic dicarboxylic acid monoester, a 1,4-dihalobutene-2 and at least one dialkali metal salt of such an acid, which may be, e.g., phthalic, isophthalic, terephthalic, succinic, adipic, sebacic, maleic or fumaric acid. A tertiary amine or quaternary ammonium salt is preferably used as catalyst.  In examples, the monobutyl ester salt and the dialkali metal salt of phthalic and/or succinic acids are used.  In the former case, it is stated that the product may contain <FORM:1013605/C2/1> and <FORM:1013605/C2/2>
Patent GB-1381096-A (GB)
Title: Blue dye and polymeric films coloured therewith
IPC: D01F1/10
Filed: 1973-08-03
Abstract: 1381096 1,4-Bis-(2<SP>1</SP>-isopropyl-6<SP>1</SP>-methyl anilino)anthraquinone FUJI PHOTO FILM CO Ltd 3 Aug 1973 [5 Aug 1972] 37096/73 Heading C4P [Also in Division G2] 1,4-Bis-(2<SP>1</SP>-isopropyl-6<SP>1</SP>-methylanilino)anthraquinone is claimed per se. The dye is prepared by heating together 1,4,9,10-tetrahydroxyan-  thracene and 2-isopropyl-6-methyl-aniline in the presence of a dehydrating agent, e.g. boric acid or a boric acid ester of an alcohol. The combination of a 2-isopropyl and 6-methyl group gave the optimum degree of steric hindrance, colour, and sublimation resistance.  The compound is useful for the melt-dyeing of polyethylene terephthalate, which may then be formed into a blue-dyed radiographic base film for use with medical X-ray photography.
Patent GB-963287-A (GB)
Title: New steroid compounds and processes for their preparation
IPC: C07J75/00
Filed: 1961-10-17
Abstract: The invention comprises 17a -hydroxy-16a -methyl -18- norpregn -4- ene-3, 11, 20-trione derivatives having the formula: <FORM:0963287/C1/1> where R represents a hydrogen atom or a group convertible to a hydrogen atom by simple hydrolysis and process for the preparation thereof by hydroxylating 17a -hydroxy-16a -methyl -18- norpregn -4- ene-3, 11, 20-trione so as to introduce a hydroxyl or esterified hydroxyl group thereinto. Said hydroxylation may be effected microbiologically e.g. with Colletotrichum lindemuthianum or chemically by iodinating 17a -hydroxy -16a - methyl-18-norpregn -4- ene-3, 11, 20-trione in the presence of calcium chloride and calcium oxide to yield the corresponding 17a -hydroxy -21- diiodo -16a - methyl -18- norpregn -4- ene-3, 11, 20-trione, treating the resulting 21-diiodo derivative with an acyloxylating agent appropriate to the ester which it is sought to form, to obtain the corresponding 21-acyloxy -17a - hydroxy -16a - methyl -18- norpregn -4- ene-3, 11, 20-trione, which is saponified to yield 17a  21-dihydroxy -16a - methyl -18- norpregn -4- ene-3, 11, 20-trione. Specifications 807,203, 877,227, 934,707, 963,288 and 963,289 are referred to.
Patent GB-325052-A (GB)
Title: Improvements in and relating to the decatizing of textile fabrics
IPC: D06C7/00
Filed: 1928-12-17
Abstract: 325,052. Krantz, H., and Krantz, W., (trading as Krantz S÷hne, H.). Oct. 20, 1928, [Convention date]. Pressing &c.-In a process for decatizing fabrics, the fabric is intermittently fed in flat condition and during the stationary periods one portion is steamed under pressure while a previously steamed portion is simultaneously cooled. The web is fed by a permeable endless conveyer 9 from stretching-bars 14 over perforated chambers 1, 7 to a plaiter 16. During stationary periods steam is admitted to the chamber 1 and beneath a plunger 3 which raises the chamber 1 and presses it against a fixed plate 5. Simultaneously a valve 38 in the suction conduit of a fan is opened to permit cooling air to be drawn through a previously steamed portion of the fabric. Electromagnets operating the clutch of the driving roller 11 of the band 9, the steam supply valves, and the valve 38, are operated by a rotary electric switch or other means. A number of fabric layers may be simultaneously treated.
Patent GB-895069-A (GB)
Title: Improvements in or relating to photographic cameras
IPC: G03B7/00
Filed: 1959-11-04
Abstract: 895,069. Camera shutters. GAUTHIER G.m.b.H., ALFRED. Nov. 4, 1959 [Dec. 2, 1958], No. 37356/59. Class 98(1). In a lens shutter assembly, several reciprocating shutter blades are driven by one member and connected to a second member which is coupled to the diaphragm setting member and adjustable thereby so as to vary the initial orientation of the shutter blades so that they will always expose an opening of at least the size of the pre-set diaphragm aperture. As shown in Figs. 3 and 6, ring 8 which adjusts the iris diaphragm (not shown) and ring 9 which adjusts the exposure time control (not shown) for the shutter are coupled for simultaneous adjustment by means of a single setting member in known manner according to an exposure value scale Oα-22α as described in Specification 879,072. On rotation of ring 9 by the setting member the cam surface 9c co-operates with a lever to vary the driving force on a driving ring 18 on which shutter blades 19 are pivoted at 36. The blades engage a second ring 35 in a pin-and-slot connection 37, 19a, said ring 35 having a pin 35a engaging a forked lever 38 which in turn has a pin 39 engaging a cam slot 8c in ring 8. As ring 8 is turned by the single setting member referred to above, a cam surface (not shown) co-operates with a lever on the iris diaphragm control in known manner, and at the same time the cam surface 8c co-operates with pin 39. There is no radial movement of this pin, and hence no movement of the lever 38, until the smallest diaphragm aperture is reached. The slot 8c is then in engagement with pin 39 with a non-circular portion of its length and the lever 38 is thereafter pivoted to cause rotation of ring 35 and hence to pivot the shutter blades, by means of the pin-and-slot connection 37, 19a, into positions of increasing overlap. The maximum overlap is such that the minimum diaphragm aperture is just cleared by the shutter blades at the end of their traverse. The time for which the aperture is uncovered is thus smaller than if the blade traverse continues to the maximum aperture position and thus an additional short-exposure range is provided beyond the normal range. Over the normal exposure range a pin 34 follows a circular slot 9d in the exposure time control ring 9 and thus remains stationary. At the position 9e it moves outwards radially under spring pressure and connects with the shutter release mechanism so as to allow "B" photography.
Patent GB-1512505-A (GB)
Title: Resin coating compositions
IPC: C09D183/10
Filed: 1976-09-10
Abstract: 1512505 Silicone release-coating composition DOW CORNING Ltd 10 Sept 1976 [11 Sept 1975] 37432/75 Heading C3T A coating composition particularly suitable for providing release coatings of improved performance in contact with hot fat comprises (A) a 50-95 wt.% organosiloxane/5-50% polyester copolymer ("organo" = C1-6 alkyl or phenyl; "organo": Si=1 : 1 to 3 : 2) and (B) 0À1 to 5% by weight of (A) of a liquid methyl organosiloxane ("organo" = phenyl and/or -CH2CH2CF3; 1À95 to 2À4 methyl + "organo" per Si; 0À03 to 0À1 "organo" per methyl), in (C) a volatile organic solvent.
Patent GB-1163461-A (GB)
Title: Improvements in and relating to Control Valves for Controlling the Supply of Pressurized Starting Air to an Internal Combustion Engine
Inventor: LEIDLAND BIRGER
IPC: F16K31/143
Filed: 1967-08-17
Abstract: 1,163,461. Starting. BURMEISTER & WAIN'S MASKIN - OG SKIBSBYGGERI A. S. Aug. 17, 1967 [Aug. 17, 1966], No.38018/67. Heading F1K. A control valve for controlling the supply of pressurized starting air to an internal combustion engine, such as a marine engine, comprises a valve housing 13 having an inlet chamber 3 arranged for connection to a source of pressurized air, a first outlet chamber 4 arranged for connection to the starting air valves of the engine and a second outlet chamber 5 arranged for connection to an exhaust duet 22 and valve means 6 axially displaceable in the valve housing and having two valve members 16, 17 arranged for selectively connecting the first outlet chamber with either the inlet chamber or the second outlet chamber. The first valve member which controls the passage between the inlet chamber and the first outlet chamber is arranged to produce during a part of the travel of the valve means following closure of the second valve member, a throttling of the passage which is variable dependent on the position of the first valve member. The valve is provided with stop means 26 which is displaceable between two different positions corresponding to the passage being throttled by the first valve member and fully open respectively. The valve means may have a pneumatic actuating piston 23. The stop means may be hydraulically or mechnically actuated or may comprise a piston which is displaceable in a pneumatic cylinder. The stop member 27 may be an adjustable screw mounted on the piston.
Patent GB-1477098-A (GB)
Title: Apparatus for fabricating hollow articles from thermoplastic material
IPC: B29C49/56
Filed: 1975-09-17
Abstract: 1477098 Blow mould clamping device H KORSCH and G KORSCH [trading as EMIL KORSCH SPEZIALFABRIK FUR KOMPRIMIERMASCHINEN] 17 Sept 1975 38269/ 75 Heading B5A A clamping unit 2 for a split blow mould 14 comprises two movable mould supports 10, 11 mounted only by two bars 12, 13 positioned below the mould, and a locking device 25 in the upper region of the mould supports to prevent the mould gaping due to moulding pressures, the axes of the locking device 25 and the bars 12, 13 lying at the corners of a right angled triangle (as seen in Fig. 1) lying in the mould parting plane 47 (Fig. 2). The locking device comprises a sleeve 27 attached to one mould support 10 and having an opening containing two opposed locking bars, and rod 28 attached to the other mould support 11 and having a symmetrically enlarged head 29 which on closing the mould enters the aperture in the sleeve 27 and on rotation of the rod 28 engages behind the locking bars, the surfaces of the head 29 which engage the locking bars being circumferentially inclined to the axis of the rod 28 and the surfaces 34 of the locking bars preferably being inclined also. The rod 28 is rotated by an hydraulic cylinder 42 operating a lever 43 attached to a sleeve 44 which is slidable but not rotatable on the rod 28. Half rings 36 engage a groove 35 in the rod 28 to retain it to the mould support 11 without preventing rotation. The mould support 11 is slidably mounted on the rods 12, 13 and the two supports 10, 11 are drawn together to close the mould by rotation of a plate 24 connected by rods 45, 46 to the mould support 11 and to a beam 21 connected across the rods 12, 13. The mould clamping unit is mounted on guide members 15 sliding along inclined tubes 16 and is moved by an hydraulic cylinder 18 (Fig. 3, not shown) between the tubes 16 from a position beneath a parison extruder 4 to a position between a blow moulding head 3.