baber/WOPTO huggingface dataset:
Patent GB-1007947-A (GB)
Title: Control means for gas turbine engines
Inventor: JUBB ALBERT
IPC: F02C9/54
Filed: 1963-12-09
Abstract: 1,007,947. Gas turbine plant. ROLLSROYCE Ltd. Sept. 30, 1964 [Dec. 9, 1963], No. 48605/63. Heading F1G. The invention relates to a power plant of the type comprising one or more gas turbine type gas generators arranged to discharge their exhaust gases into a common manifold or plenum chamber, the chamber having one or more outlets through which gas can be selectively discharged so as to drive a turbine or turbines. Apparatus is provided for maintaining a selected value of the ratio between the plenum chamber pressure and the engine compressor delivery pressure, the apparatus comprising a device which is subjected to the pressures or to signals functionally related thereto and responsive to a change in the value of the said ratio from the selected value to actuate means for varying the flow of fuel to the engine-or engines so as to restore the selected ratio. The power plant shown comprises two gas turbine type gas generators 12, 14 which discharge their gases into a common plenum chamber 10, gases passing from the chamber through two ducts 16, 18 in which turbines 20, 22 are respectively disposed, the flow of gases to the turbines being controlled by adjustable inlet guide vanes 26. The flow of fuel to the gas turbine engines 12, 14 is controlled by means of control units 28 which are in turn controlled by the pressure responsive device 30 which is shown in detail in Fig. 2. The device 30 comprises a housing 34 which is divided by a diaphragm 32 into two chambers 36, 38, the diaphragm carrying a rod 40 which carries a half-ball valve 42, the valve co-operating with a vent 62A. The chamber 34 is connected by line 44 to the plenum chamber 10 while the chamber 38 is connected by line 62 to a duct 56 between two restrictions 58, 60 disposed therein, the duct 56 communicating with a manifold 48 which is connected by lines 46, 50 containing non-return valves 52, 54 with the compressors of the engines 12, 14, all respectively. The vent 62A leads from one end of a cylinder 64 in which is disposed a piston 66 having a restricted passage 72 therethrough. The piston rod 74 acts to control the position of a fuel control valve 76. Pressure fluid is supplied to the right-hand side of the piston 66 the fluid passing through the orifice 72 to the left-hand side of the piston, the fluid then escaping through the vent 62A under control of the half-ball valve 42. Should the pressure in the plenum chamber increase with respect to compressor delivery pressure, the diaphragm 32 will cause the valve 42 to close off vent 62, the piston 66 will move to the right and actuate the valve 76 to reduce the fuel flow to the engine.
Patent GB-1025746-A (GB)
Title: Camera with built-in exposure meter
Inventor: JURENZ ROLF
IPC: G03B7/099
Filed: 1963-12-11
Abstract: 1,025,746. Photographic cameras; lighttransmitting fibres. PENTACON DRESDEN KAMERAUND KINOWERKE VEB. Dec. 11,1963, No. 48914/63. Headings G2A and G2J. In a photographic or cinematographic camera, having a built-in exposure meter, light is transmitted from the camera or lens front to a photocell in the camera body by means of a light-conducting fibre bundle. The light may be conducted from various parts 9,10,11 of the camera front to both sides of a photo-cell 2. Alternatively, the fibres may be mounted as a cylindrical or part cylindrical sheath on an interchangeable lens mount (Fig. 4, not shown) and co-operate with an annular photo-cell. The angular field of view of each bundle is then made to correspond to that of the lens to the mount of which it is fitted. In order to vary the angular field when using a zoom lens (Fig. 3, not shown), a box diaphragm may be coupled to the focal length adjustment of the lens to vary the distance between its apertured end and the front surface of the bundle.
Patent GB-1221306-A (GB)
Title: Improvements in or relating to cement guns and methods of applying cement
Inventor: LITTLER JOHN OSCAR CHRISTOPHER
IPC: E04F21/12
Filed: 1967-10-27
Abstract: 1,221,306. Cement guns. STEETLEY CHAMBERS Ltd. 23 Oct., 1968 [27 Oct., 1967], No. 49060/67. Heading E1S. A cement gun for supplying slurry from a pressure chamber 10 to a lance via a duct 44 and a flexible hose has a bottom air inlet pipe 34 extending into the end of the duct 44, and "agitator" air inlet pipes 38 a-f, together with a main air inlet pipe 40, all the air being supplied by a pipe 48 which bifurcates into a main channel 54 and a bypass channel 56. The main channel has a regulator 59 to reduce the pressure from 80/100 p.s.i. to 40 p.s.i., and the bypass channel has a mixing pressure regulator 62. The chamber is partly filled with water, and air supplied via the regulator 62 (by-pass channel). Cement is now added at 70/30 parts of cement/water. After a minute or two the main channel is opened, and the cement and water mixed fully. The chamber is sealed, and the lance can then be operated.
Patent GB-1324537-A (GB)
Title: Ignition device for a rocket-assisted projectile
IPC: F42C15/184
Filed: 1970-10-15
Abstract: 1324537 Igniters for rocket motors BOFORS AB 15 Oct 1970 [17 Oct 1969] 49127/70 Heading F3A An igniter for the motor of a rocket assisted artillery projectile comprises a detonator 6 which is ignited on firing the projectile, a delay ccmposition 10 which is ignited by the detonator and burns without a flame and hot gases, a non-explosive primer 1 for the motor, and a slide 13 carrying flame producing pellets 17, either one of which on firing the projectile, is brought from a safe position into alignment with an aperture 4 and into contact with one end of the delay composition so as to be ignited. The slide is locked in the safe position by spring pressed bolts which are retracted under the action of centrifugal force. The slide is also moved to the armed position by centrifugal forces. The detonator 6 is biased by a spring 8 but sets back against a striker 9 upon firing the projectile.
Patent GB-1279609-A (GB)
Title: Apparatus for making a plurality of simultaneous pipe connections to an aircraft engine
Inventor: BOTTOMS HARRY SIMISTER
IPC: F16L39/00
Filed: 1968-10-17
Abstract: 1279609 Pipe couplings JOSEPH LUCAS (INDUSTRIES) Ltd 3 Oct 1969 [17 Oct 1968] 49335/68 Heading F2G A multiple pipe coupling, for e.g. an aircraft engine, comprises two annular coupling elements 3, 11 with a plurality of aligned passages 6, 12 connected to pipes 10, 16, element 3 being fixed to a mounting trunnion 1 for the engine. The elements 3, 11 are clamped by means of a ring 17 which screw-threadedly engages the element 3 and engages a flange 18 on the element 11. Each passage 12 in the element 11 has a stepped recess 20, containing a spring biased piston 22 with a seal 23 contacting the recess bore and a seal 24 facing axially outwardly, which contacts the mating face of the element 3. When the clamping ring 17 is fully screwed on to element 3 the mating faces of the elements 3, 11 do not contact, but the seal 24 provides contact with the face of element 3. The element 3 is attached to the engine 2, and the trunnion 1 has a through passage 4 which communicates with the engine by means of a chamber 5 in element 3.
Patent GB-1184274-A (GB)
Title: Improvements in or relating to Clamps
IPC: F16L3/137
Filed: 1968-10-17
Abstract: 1,184,274. Clamps. H. HECKHAUSEN, L. HECKHAUSEN and L. HECKHAUSEN. 17 Oct., 1968 [24 Oct., 1967], No. 49377/68. Heading E2B. A flexible clamp for securing cables &c. consists of a toothed strap 16 and a flexible buckle 21 both attached to a base 10, the buckle having a catch 18 for engaging the teeth on the strap. The base portion is provided with grooves 13 accommodating a base plate 14 by which the clamp is supported. The teeth 17 are of rachet form, and the end of the strap is located under bridge 22. The whole unit is of plastics material.
Patent GB-1444967-A (GB)
Title: Pyrocatechol ethers
IPC: C07D307/20
Filed: 1973-10-24
Abstract: 1444967 Pyrocatechol ethers BASF AG 24 Oct 1973 [25 Oct 1972] 49403/73 Heading C2C The invention comprises a pyrocatechol ether of formula wherein R<SP>1</SP> is hydrogen or lower alkyl, R<SP>2</SP> is hydrogen or, lower alkyl which is unsubstituted or substituted by halogen, methoxy, ethoxy or benzyl; R<SP>3</SP> is lower alkyl, cycloalkyl, phenyl, #-chloroethyl, alkoxyalkyl, lower alkenyl, lower alkynyl or acyl; or R<SP>1</SP> and R<SP>2</SP> together with the carbon atom whose substituents they are or R<SP>1</SP> and R<SP>3</SP> together with the carbon and oxygen atoms whose substituents they are denote a five-membered or six-membered ring, 'lower' denoting radical containing up to 4 carbon atoms. These compounds may be obtained by reacting a compound of formula wherein Hal is Cl, Br or I, and R<SP>1</SP>, R<SP>2</SP> and R<SP>3</SP> are as specified above with a salt of pyrocatechol, or with pyrocatechol in the presence of a base. Depending upon the quantities of the reactants the reaction may proceed in two stages: in the first stage the intermediate compounds of the formula are produced which may be converted to the compounds of Formula I by reaction with a further amount of catechol.
Patent GB-1120184-A (GB)
Title: Apparatus for transporting documents
IPC: B07C3/08
Filed: 1965-11-22
Abstract: 1,120,184. Sheet-delivery apparatus. INTERNATIONAL BUSINESS MACHINES CORP. 22 Nov., 1965 [21 Dec., 1964], No. 49455/65 Heading B6H. Apparatus primarily for depositing record documents or sheets of varying lengths neatly upon a gradually lowered stacker plate 88 comprises a continuously-driven timing belt 10 and document-carrying members 20 which can be released from the belt to receive a document from feed rollers 81, and can then be coupled to the belt to carry the document to the stack by means responsive to the approach of a document to the belt. Each member 20 comprises a base plate 21 with a pivot 31 on which is mounted a spring-closed document gripper 23, and a member 22 urged by a spring so that a tooth 35 thereon engages the internal teeth of the belt 10. Near the end of the belt 10 adjacent to the rollers 81 are plates 51, 52 pivoted on an axis 50 and carrying cams 57. Springs 55 on the axis 50 urge the plates to a position where the cams engage surfaces 29, 37 on the base plate 21 and toothed member 22 respectively to release two carrier members 20 from the belt 10. At the same time each gripper 23 is opened because of the engagement of a bent-over tab 43 thereon with the edge of the member 22. In operation, the leading edge of a document approaching the rollers 81 is sensed by a switch or photo-electric device 83 and this causes energization of a solenoid which, through a linkage, causes the lower plate 52 and its cam to be pivoted to inoperative position so that the tooth 35 engages the belt teeth and the gripper 23 engages the document, the leading edge of which is now within the gripper. When the document reaches the pile, a cam plate 44 engages an arm 41 on the gripper 23 to release the document. The carrier 20 continues to move with the belt 10 until it reaches the upper cam 57 which releases it. The rear edge of the document passing between the rollers 81 is sensed by a detector 84 which, through an electromagnet, causes the upper cam 57 to be moved to inoperative position, so that the upper carrier 20 is coupled to the belt and moved until it reaches the lower cam 57 which decouples it and opens the gripper 23 ready to receive the next document. A single carrier may be employed if the document frequency is low, or a number may be provided if the frequency is high. In the latter case, a corresponding number of cams 57 would be required. More than one stacking apparatus 88 may be provided with selectively-operable cams 44.
Patent GB-1279450-A (GB)
Title: Gaseous reaction process for the production of rare earth oxyhalide and oxide materials
Inventor: RABATIN JACOB GEORGE
IPC: C01F17/241
Filed: 1969-10-09
Abstract: 1279450 Rare earth oxyhalides and oxides GENERAL ELECTRIC CO 9 Oct 1969 [23 Got 1968] 49643/69 Heading C1A [Also in Division C4]  Crystalline rare earth oxychloride, oxybromide or oxyiodide particles are prepared by heating in an atmosphere containing the hydrogen halide at 800-1200 C. particles of the rare earth oxide, the oxide particles may first be mixed with NH 4  halide and heated to 400-500 C. to form oxyhalide particles and then recrystallizing at 500-1200 C. To prepare YOCl doped with Eu, Eu 2 O 3  and Y 2 O 3  are slurried in water, dissolved in HNO 3  and boiled. Oxalic acid is added to precipitate Y and Eu oxalates which are fired in air at 1100 C. to form the mixed oxide. This is blended with NH 4 Cl and heated at 400-500 C. then at 800-1200 C. in HCl mixed with air, N 2  or CO 2 . Alternatively the mixed oxide is heated at 1100 C. in flowing HCl mixed with air, N 2  or CO 2  to form single crystals of YOCl:Eu of about 10 Á diameter. The oxychloride may be heated at 1000 C. in humidified CO 2  to form Y 2 O 3  :Eu. Tb activated LaOCl, LaOBr and Gd 2 O 3 :Eu are referred to, the latter being formed from Na 2 CO 3 , NH 4 Cl and Gd 2 O 3 :Eu. Activators include Ce, Pr, Nd, Sm, Dy, Ho, Er and Tm. The phosphors may be used in C.R.T.s X-ray converter tubes and fluoroscopic screens. The oxyhalide and oxide particles may range from 3-30 microns in size.
Patent GB-1527863-A (GB)
Title: Servo-controls
IPC: F04B49/00
Filed: 1974-11-18
Abstract: 1527863 Fluid-pressure servomotor systems MASSEY-FERGUSON SERVICES HV 17 Nov 1975 [18 Nov 1974] 49876/74 Heading G3P A spool 122 when moved upwardly within a sleeve 96 allows fluid to flow from an inlet 90 to a control duct 118 communicating with a chamber 112 whereby the sleeve is displaced against the bias of a spring 100 until the spool again closes the control duct. The pressure in the latter also displaces a piston 50 against a spring 42, a further valve 56 being displaced with the piston to cause follow-up operation of a second piston 22 coupled to a swash-plate machine 10.
Patent GB-1153019-A (GB)
Title: Arrangement for improving the Writing Properties of Fibre Point Pens and the like
IPC: B43K23/12
Filed: 1967-11-03
Abstract: 1,153,019. Felt-nib pens. GEHA-WERKE G.m.b.H. 3 Nov., 1967 [7 Nov., 1966; 24 Dec., 1966], No. 50080/67. Heading A4K. [Also in Division B6] A fibre writing tip 8 is re-pointed by sharpening it in a conical shaping cavity 2, which may either have a smooth or abrasive surface. The cavity 2 may have longitudinal emery covered ribs 10 and the abraded particles, for example, from a plastic impregnated nylon fibre writing tip, pass out through four slits 11. A layer of emery may, alternatively, be provided on a non-ribbed conical surface or the ribs may be formed as scraper blades. The repointing head 1 may be mounted in a fountain-pen type cover cap (12, Figs. 3-6 and 9, not shown) or, alternatively, it may be screwed into the rear end of the pen barrel (Fig. 7, not shown) when not in use. In one form, the head 1 is of transparent plastic and the re-pointing action can be observed through windows (23, Fig. 6, not shown).
Patent GB-1247297-A (GB)
Title: Automatic locking device for safety belts
IPC: B60R22/38
Filed: 1969-10-13
Abstract: 1,247,297. Safety belts. AUTOINDUSTRIA A.B. 13 Oct., 1969 [5 Nov., 1968], No. 50098/ 69. Heading A3V.  In an automatic inertial locking device 2 for a vehicle safety belt 3 comprising a rotatable shaft 5, mounted in a casing 1, for reeling the belt, and a rotor 10 fixed to the shaft on whose circumference at least one locking pawl 12 is disposed to be radially outwardly displaceable, in response to guided centrifugal forces to cooperate with at least one locking tooth 13 in the casing, a disc member 21, which is coaxial and rotatable relative to said rotor, rotates at the same speed as the rotor below a set value of angular acceleration and, by means of position guide members on the disc, prevents the pawl 12 from locking with one of the teeth 13, but when the angular acceleration of the rotor exceeds the set value, said disc, due to inertial forces, rotates momentarily more slowly than the rotor and causes said guide members to release the pawl to lock with the tooth. The safety belt is held on the shaft by a coil spring 4, and its internal anchored end by a rod 7. The pawl is in two halves - a locking portion 17 to engage the tooth, and a guide portion 18 to engage with the guide member, as in Fig. 7. A pin 41 projects from the disc member into a groove 39 in the rotor as in Fig. 4, the pin being held in position by a spring 40 at one end of the groove. Above the set rotor acceleration the pin will displace as shown and hence the disc will lay the rotor and the device will lock. The critical acceleration can be varied by altering the spring strength. A locking member 25 (not shown), formed as a two armed lever is positioned such that it engages the tooth and locks the device when the device is axially or laterally accelerated. The locking pawl may be housed in a wedge shaped recess in the rotor and thus swingable or it may be only radially displaceable in which case the position guide member is formed as a stop 47.
Patent GB-1376254-A (GB)
Title: Flow cells
IPC: G01N21/05
Filed: 1972-10-31
Abstract: 1376254 Flow cell TECHNICON INSTRUMENTS CORP 31 Oct 1972 [17 Dec 1971] 50114/72 Heading G2J A body 12 having a bore 14 along the axis of which light is to be directed via the optical analysis of fluid-flowing through the bore, has end seals 26 with optically worked ends 28, 30 and having a higher refractive index than the body 12 so that they act as light-pipes. The body is preferably shielded from ambient light. The seals may be of sapphire or of lithium niobate.
Patent GB-1044719-A (GB)
Title: Improvements in and relating to roller bearings
IPC: F16C33/58
Filed: 1964-12-10
Abstract: 1,044,719. Bearings. TORRINGTON CO. Dec. 10, 1964 [Dec. 10, 1963], No. 50229/64. Heading F2A. In a roller bearing assembly, a shaft 14, Fig. 1 (not shown), serves as an inner race; an outer race 15 is mounted in a housing 10 and carries a shaft-riding seal 23, Fig. 2 (not shown), thereon; and rollers 16, having reduced portions 17 at each end thereof are positioned between the races. The outer race 15 is shaped at one end 18 so as to form a seal-carrying portion 22 and is shaped at both ends 18, 19, so as to form rollers-retaining lips 20, 21 which engage the portions 17 of the rollers. The seal 23 is secured to the outer race 15 by direct moulding, or by an adhesive, and has a shaft-engaging lip 24 which is deflected to the left or to the right according to the positioning of the shaft 14 in the bearing. . In a modification, a cage 28, Fig. 4 (not shown), is provided and the reduced portions 17 of the rollers are omitted.
Patent GB-1447127-A (GB)
Title: Apparatus for recovering data from a double frequency encoded signal train
IPC: G06K7/00
Filed: 1974-11-20
Abstract: 1447127 Recovering data; data reader INTERNATIONAL BUSINESS MACHINES CORP 20 Nov 1974 [26 Dec 1973] 50354/74 Headings G4C and G4M Apparatus for recovering data from a double frequency encoded signal train, Fig. 3, line 13, comprises a unidirectional five-stage counter 20, Fig. 1, incremented by a high frequency internal oscillator 10 and generating a first count representing the time between adjacent timing signals C1, C2, &c. in the signal train, a unidirectional three-stage counter 24 fed with the complement of the first count from stages IIIV of counter 20 via an inverting circuit 22, counter 24 counting up the first count in a shorter time than counter 20 and overflowing to generate an output signal on a line 41 after that shorter time. Control signals 44-47 on lines 23, 25, 27 and 31 are produced by means of a counter (50) of a circuit 40 (illustrated in detail in Fig. 2, not shown) to reset counters 20, 24, reset a shift latch 26 and a data separation latch 32, and to enable the inverting circuit 22. Counter 24 is incremented via a divide-by-three circuit 14 and the output signal on line 41 is generated after approximately ¥ of the time between adjacent timing signals, the output signal being fed to the shift latch 26 to produce an output waveform shown in Fig. 3, line 35. This waveform is fed to the data separation latch 32 where the presence or absence of a data pulse, i.e. a transition at the centre of a timing period, is detected, the data output passing to a deserializer 34 and thence to a utilization circuit (not shown) via a line 39. In another embodiment, the inverting circuit 22 is omitted and counter 24 counts down to zero to generate its output signal. The control signals 44-47 may alternatively be generated using delay line circuitry instead of the counter (50). The apparatus is particularly suitable for recovering data from a moving record medium by means of a transducer when the relative velocity of the medium and transducer is subject to wide variations, such as in a hand-driven or low quality mechanically-driven card reader. The information may be encoded on the medium in magnetic form, e.g. as a magnetic stripe on a card or tape, or in optical form, e.g. as alternating light and dark stripes on a card. The circuit 40 is arranged so as to ignore the first few, e.g. six, timing signals being read from the medium, in order to avoid initial poor quality transitions.
Patent GB-1248974-A (GB)
Title: Improvements in sealed containers
Inventor: ASHTON CLYDE
IPC: B65D39/04
Filed: 1968-10-24
Abstract: 1,248,974. Closure for pressurized or evacuated container. BULPITT & SONS Ltd. 20 Oct., 1969 [24 Oct., 1968], No. 50538/68. Headings B8C and B8T. A container has a body 10 provided at one end with a lid 15 adapted to make a seal with a sealing element 14 located in a peripheral recess 13 which faces itself across the interior of the body, the opposite end being provided with a stoppered hole 11. The container may be pressurized, Fig. 1, or evacuated, Fig. 2 (not shown), the lid 15 having a stepped peripheral lip 16 which forms a seal with an O ring 14 located in the peripheral recess, the lid beng held in sealing position by the pressure difference. A plastics, apertured spacer 18 and sponge rubber ring 19 restrain the contents, e.g. an object 17, from moving. With the lid 15 placed, lip downwards, and the O ring 14 inserted in the recess 13, a base plug 12 is removed and gas, e.g. nitrogen, is applied to the lid end of the inverted container to force the lid inwardly, and away from the 0 ring, so purging the container. The plug is then replaced causing the pressure in the container to rise until, together with the pressure of the sponge rubber ring on the lid, it is equal to the applied gas pressure, when the lid again abuts the sealing ring. If the container is to be evacuated the lid is placed with its lip facing upwards and is evacuated from that end, a spring bearing on top of the lid to hold it on to the O ring when the required vacuum is attained. Two O rings may be used with a reversible lid located between them. The plug 12 may be used to release the pressure or vacuum.