baber/WOPTO huggingface dataset:
Patent GB-637071-A (GB)
Title: Improvements in or relating to thermal regenerators
IPC: F02G1/057
Filed: 1948-05-27
Abstract: 637,071. Thermal regenerators. NAAMLOOZE VENNOOTSCHAP PHILIPS' GLOEILAMPENFABRIEKEN. May 27, 1948, No. 14344. Convention date, May 30, 1947. [Class 64(i)] The filling material of a thermal regenerator, e.g. for hot-gas engines and refrigerating systems, has a coefficient of thermal conductivity less s than 0.005 gram calories per centimetre per second per degree Centigrade and a large number of channels for fluid flow, and contains locally filling material having a coefficient of thermal conductivity of more than 0.3 gram calories per centimeter per second per degree Centigrade. The material 20 may be compressed glass wool, and the other material may be metallic particles or, in the form shown, metal helices 21.
Patent GB-262334-A (GB)
Title: Improvements in or relating to double cinematograph projection apparatus
IPC: G03B21/00
Filed: 1926-06-07
Abstract: 262,334. Rogers, F. H., (Akt.-Ges. Hahn f³r Optik und Mechanik). June 7, 1926. Kinematograph apparatus. - Projectors comprising two motion heads alternatively illuminated by one light source are provided with optical systems, between the light source and the heads, such that substantially the whole of the light is utilized during transference of the light from one head to the other. As shown in Fig. 1, projector heads 1, 2, actuated respectively from the left and right hand sides, are illuminated by a laterally movable lamp house 8. The lamp 5 and mirror 7 produce a substantially parallel beam which normally passes through one of two fixed condensers 10, 11 lying closely side by side. Fig. 3 shows a modification in which a substantially parallel beam from a fixed lamp house is alternatively directed to motion heads 14, 15 by fixed mirrors 22, 24 and vertically slidable mirrors 21, 23 moving together.
Patent GB-419747-A (GB)
Title: Improvements in glass polishing tools
IPC: B24B41/053
Filed: 1933-05-19
Abstract: 419,747. Polishing flat sheets of glass. PILKINGTON BROS., Ltd., 703, Tower Building, Water Street, Liverpool, and WALDRON, F. B., Norwood, Eccleston Park, Prescot, Lancashire. May 19, 1933, No. 14524. Addition to 407,406. [Class 60.] Apparatus for polishing flat glass comprises a number of polishing-tools 3 operating on the glass 4 and each carried by a shaft 5 rotatable in a frame 1 driven by a shaft 2. The shafts 5 are each supported by a thrust bearing 7 carried by a flexible disc 8 held by a ring 9 to a casing 10 supported by the frame 1, and each casing is supplied with pressure fluid from a ring pipe 12 by a pipe 11, the pipe 12 being in communication, through a bore 14 in the shaft 2 with a supply main 17 having therein a valve 18 and a discharge valve 19. In operation, the valve 19 is closed, fluid is admitted by the valve 18 to the casings 10, which moves the tools up to the glass ; the valve 18 is then closed, the fluid supporting the tools and allowing them to yield owing to unevenness of the glass, thereby maintaining equality of pressure among the tools. The tools can be raised or lowered by operation of the valves ; when operating on vertically placed glass, spring pressure may be used to move the tools away from the glass. Other forms of press may be used, for example, plungers in cylinders ; the tools may be of different sizes, the relative pressures on the glass being given any desired values by variation of the areas of the discs 8.
Patent GB-1382654-A (GB)
Title: Expansiblelink mechanism
IPC: A44C5/00
Filed: 1972-03-28
Abstract: 1382654 A combined data holder and fastener N E GODFROY 28 March 1972 [5 April 1971] 14525/72 Heading A3H [Also in Divisions A4 and E2] A data holder formed by an expansible mechanism is also suitable for use'as a watch strap fastener or key holder fob. It comprises a hollow housing having an open end formed by a top wall 13 having integral side walls 16, 17, 18, a bottom wall 14 having integral flanges 26, 27, and an internal dividing wall 40 having a slot 47 and integral flanges 42, 43. A first panel 66, having a slot 71 and lugs 69, 70, is slidably disposed in a first compartment within the housing for movement between a retracted position substantially within the housing and an extended position where it projects through the open end. A spring 54 disposed in a second compartment within the housing having one end extending- through a slot 47 and engaging slot 71 in the panel 66 urges it into its extended position, and integral bent back tongues 35, on bottom wall flanges 26, 27, engaging panel lugs 69, 70 prevent complete removal of the panel 66 from the housing. A resiliently displaceable abutment 50 on flange 43 of internal wall 40 engages panel lug 70 to releasably retain panel 66 in its retracted position against the action of spring 54, and a manually operable slidable member 60, extending from the housing through slots 48, 32, 20 and supported by slots 49, 31, (21) (Fig. 3 not shown), having lugs 64, 65 to retain it within the housing, engages abutment 50 to enable release of lug 70 and panel 66 from its retracted position to its extended position under the action of the spring 54 upon operation of the member 60. Several panels 66, 67, 68 may be pivotally connected for movement between a linear extended configuration outside the housing and a concertina-folded configuration within the housing, and the terminal panel and housing may be pivotally connected to a watch strap to form a fastener. The panels may have information thereon or have a record sheet removeably bonded thereto. The hinges between the panels may prevent movement of the panels angularly past their linear extended configuration by means of integral sloping lugs (130, 131, 132, 133 Figs. 14 to 17, not shown) on the panels. Various holders having spring side flanges for gripping the side walls of the housing may be used with the device and these holders may have: a perforated extension (111) for attachment to a key ring Fig. 12 (not shown); spring clip (114) for attachment to a pocket Figs. 11 and 13 (not shown); or spaced apart parallel slots for receiving a flexible watch strap Figs. 9 and 10 (not shown).
Patent GB-1034151-A (GB)
Title: Improvements in or relating to coding apparatus
IPC: H04L13/16
Filed: 1965-04-07
Abstract: 1,034,151. Selective signalling. SIEMENS & HALSKE A.G., and F. E. BENZING. April 7, 1965 [Aug. 4, 1964], No. 14673/65. Heading G4H. Depression of a key of a coding-keyboard rotates a combination of coded cams a corresponding amount which are then sensed by lowering spring-loaded contacts on to them to thereby provide corresponding electric output signals. The spring-loaded sensing contacts carry locking pawls so that any actuated contacts are locked in their actuated positions until they are subsequently released. The keys are arranged in a column at different distances from the fulcrum of a lever, whereby a depressed key rocks the lever a corresponding amount which in turn rotates the coding-cams. Two different sets of coding cams can be interleaved on the same shaft so that by a small lateral shift of the sensing contacts a different coding can be achieved.
Patent GB-1470562-A (GB)
Title: Embossed card reader
IPC: G06V10/12
Filed: 1974-04-02
Abstract: 1470562 Embossed card readers SHARP KK 2 April 1974 14676/74 Heading G4R A machine for reading characters embossed on a card includes a reading head comprising a baffle plate 24 with two slits 241, 242. Light is directed through one of the slits and is reflected by the card. Dependent upon whether or not the incident light falls on an embossed part the reflected light passes or does not pass through the other slit. Light passing through the second slit falls on a photosensor array 22. As disclosed the slits have a length greater than the height of the characters, which are in stylized form. The photosensor array is a line of phototransistors which are enabled sequentially during movement of the record beneath the baffle. When a card is inserted into a guide in the machine its leading edge is sensed by a first photosensor so that a drive motor is started. The motor moves the card beneath the reading head. When the trailing edge of the card passes the first photosensor the drive is reversed so that the card is returned towards its insertion point. When the now trailing edge passes the first photosensor the motor is stopped and the card may be withdrawn. A second photosensor, on the opposite side of the reading head from the first, prevents the motor from being stopped when the end of the card passes the first photosensor in the forward direction. The signals from the reading head pass to recognition means, not described. Recognition takes place during both forward and reverse movement of the card and reading is deemed to be correct only if the recognition is the same in both directions.
Patent GB-919399-A (GB)
Title: Derivatives of nicotinic acid and a process for their production
IPC: C07D213/82
Filed: 1961-04-24
Abstract: The invention comprises compounds of the formula <FORM:0919399/IV (b)/1> (wherein -NR1R2 is dialkylamino, alkyiaralkylamino or diaralkylamino, or R1 and R2 are, together with the nitrogen atom, linked to form a saturated heterocyclic radical which may contain other hetero atoms which when a nitrogen atom may be further substituted by an alkyl group of at most 3 carbon atoms or by a nicotinoylaminomethyl group) and salts thereof with organic and inorganic acids; and their preparation by reacting nicotinic acid amide directly or in stages with formaldehyde and the secondary amine NHR1R2.  The amide may be reacted with formaldehyde (or a compound yielding it) and the amine simultaneously, or it may first be converted into the N-hydroxymethyl derivative or an ether or thioether thereof, or into the N-diethylaminomethyl derivative, by reaction with formaldehyde (or compounds yielding it) and if necessary reaction with alcohols, thioalcohols or with diethylamine, and the intermediate product so obtained, if necessary, further reacted with the appropriate secondary amine. 1,4-Bis(nicotinoylaminomethyl)-piperazine is prepared by heating 2 mols of nicotinic acid-N-(hydroxymethyl)-amide with 1 mol of piperazine.  Detailed examples are given. N-(1,2-diphenylethyl)-N-methylamine is prepared by reaction of benzalmethylamine with benzyl magnesium chloride and subsequent hydrolysis.
Patent GB-1189626-A (GB)
Title: Improvements in and relating to Gas Chromatography.
Inventor: LITTLEJOHN DUANE PRESCOTT
IPC: G01N30/72
Filed: 1968-03-27
Abstract: 1,189,626. Gas chromatography. VARIAN ASSOCIATES. 27 March, 1968 [27 March, 1967 (2)], No. 14806/68. Heading B1L. [Also in Division F2] A gas chromatography system in which portions of the eluent peaks may be separated from carrier gas and the concentrated eluent investigated in a spectrometer, suitably a mass spectrometer comprises a solenoid-activated gas transfer switch 5 (see Division F2) having two inlets 13, 14 connected respectively to the outlet of gas chromatograph 1 and a supply of`carrier gas. 19, and three outlets 15, 16, 17, two of which are connected to vents and the other, 16, to the inlet of a two-stage gas diffusion separator 4 where eluent is substantially separated from carrier gas before passing to mass spectrometer 3. Initially, the eluent stream passes through inlet 13 and out through outlet 15 while carrier gas sweeps the rest of the system through inlet 14 and outlet 16. When a peak appears on the chart which requires detailed investigation, switch 5 is switched to its other state (see dotted lines), whereby the peak is caused to pass by outlet 16 to separator 13 and thence to spectrometer 3 for detailed analysis. By means of throttle valve 22, the peaks under investigation can be expanded or contracted in their time of passage through the spectrometer.
Patent GB-698073-A (GB)
Title: Improvements in or relating to hydraulic controlling valves
Inventor: CLARK HARRY RUSSELL
IPC: F15B13/04
Filed: 1949-06-03
Abstract: 698,073. Hydraulic control systems. VICKERSARMSTRONGS, Ltd. Sept. 8, 1950 [June 3, 1949, No. 14915/49. Class 69(ii) A hydraulic control valve unit comprises a combined hydraulic pressure and mechanically operated valve 5 which controls the admission of pressure liquid to an operated ram and also the flow of liquid to exhaust at a mechanically predetermined portion of the ram stroke and a mechanically operated relief valve 19 which is operable to allow the pressure liquid acting on the valve 5 to pass to exhaust. Pressure liquid enters through a port 2 and depresses the valve 5 to uncover a port 7 through which the liquid passes into a chamber 8 and then through a port 9 and check valve 10 to an outlet chamber 11. The relief valve 19 is opened by a plunger 22 having a lost motion connection with a plunger 20 operated by a lever 21 which is moved by the ram at the end of its stroke. When the relief valve 19 is opened the pressure in chamber 8 escapes to exhaust through ports 14, 3 causing the valve 5 to be moved upwards by its spring 6 to place the outlet chamber, and hence the ram cylinder, in communication with the exhaust port 3 through passages 15, 13, 16, 14. The ram returns under its own weight, or by other means, and near the end of the return stroke a lever 24 is operated to depress the valve 5 and thus throttle the exhaust so as to bring the ram to rest without shock.
Patent GB-355226-A (GB)
Title: Improvements in aircraft with rotative wings
IPC: B64C27/51
Filed: 1930-05-15
Abstract: 355,226. Vibration-dampers. LA CIERVA, J. DE, Bush House, Aldwych, London. May 15, 1930, No. 14991. Convention date, Dec. 26, 1929. [Class 108 (iii).] The blades of a rotating wing system, particularly of the auto-rotative type, are pivoted so as to be capable of angular movements relative to one another in the plane of rotation under the restraint of one or more non-reactive damping devices which do not resist rising and falling movements of the blades. Four levers 7 normally parallel to the axes of the blades are connected at their outer ends to frictional vibration dampers, and their inner ends are connected together by cables 6. Consequently the effective resistance to relative displacement increases with the displacement on account of the diminishing leverage of the corresponding arm 7. Fig. 5 shows a cross section of the damping device wherein a block 11 is secured to a blade spar 15 by clips 17 and is engaged by upper and lower cones 10 pressed together by springs 12 on a stud 9 on which is mounted the lever 7 of hollow stream-lined form, or it may be integral therewith. A nut 14 on the stud 9 enables the degree of friction to be adjusted. The levers 7 may be articulated to the movable friction members so as to allow limited swinging movement in planes perpendicular to the wing blade.
Patent GB-884284-A (GB)
Title: Improvements in or relating to centrifuges
IPC: B04B1/12
Filed: 1959-05-01
Abstract: 884,284. Centrifugal separators. DORRIES A.G., O. May 1, 1959 [June 28, 1958], No. 15000/59. Class 23. A separator for the removal of heavy impurities from fibrous suspensions has apertures 16 for the discharge of these impurities, the apertures each being supplied with flushing liquid through ducts 17. The flushing liquid is led to the apertures by a duct 12 in the drive shaft 3, and by ducts 13, 14 in the walls of the separator. Suspension is supplied to a funnel 9, passes downwardly over a partition 6, and upwardly along the outer wall 7 of the separator to discharge into a collector 10. In a modification the flushing liquid is supplied to a trough formed on the wall 7, and connected by ducts to the apertures. The duct 17 may discharge toward the inlet of the aperture.
Patent GB-1021923-A (GB)
Title: Process of electrical welding by fusion
IPC: B23K25/00
Filed: 1963-04-17
Abstract: In submerged arc or electroslag welding, a tubular electrode containing a basic flux introduces basic constituents to the melt which is composed in such a way that the resultant fused slag is non-basic i.e., has a basicity index less than 1.4, the basicity index being the ratio B/A where B equals weight of CaO+MgO +BaO+K2O+Na2O+Li2O+CaF2+ 1/2 MnO and A equals SiO2+ 1/2 (AleO3+TiO2, +ZrO2). In submerged arc welding steel plates, a tubular steel electrode having a core of basic flux comprising .6-11% low carbon ferromanganese. ..(80% Mn, 1% C) .30-50%.CaF2 .10-18%.MnO .0-16%.SiO2 .10-30%.CaO+MgO .1- 2%.silicomanganese ..(25% Si, 74% Mn, 1% C) .0-6%.miscellaneous was used with the following acid-type granular flux .45-65%.SiO2 .0- 6%.Al2O3 .30-50%.MnO .0- 4%.miscellaneous To obtain a fully deoxidized weld having a carbon content less than 0.05%, oxidizers are added to the basic core of the electrode to decarburize the weld metal, and deoxidizers are added to the granular flux to deoxidize the decarburized weld metal.  A plurality of tubular electrodes with basic cores may be used, the leading electrode containing oxidizers such as iron oxide and the trailing electrode(s) containing alloying elements including manganese and deoxidizers e.g. aluminium, ferrosilicon, carbonless ferrotitanium and ferromanganese. In electroslag welding, the electrode is tubular with a basic core containing deoxidizers e.g. ferrosilicon, ferrotitanium, silicomanganese or ferromanganese and the flux is a flux such as .45%.SiO2 .3%.Al2O3 .5%.CaF2 .35%.MnO .4%.MgO .5%.CaO .3%.miscellaneous rendered highly oxidizing by treating with oxygen in an electric furnace to increase its oxygen content to 49%.
Patent GB-763014-A (GB)
Title: An improved method of and apparatus for burning fuel
IPC: F23K3/00
Filed: 1954-05-21
Abstract: 763,014. Liquid, gaseous and pulverulentfuel furnaces. BABCOCK & WILCOX, Ltd. May 21, 1954 [May 23, 1953], No. 15060/54. Class 51 (1). In the combustion of liquid, gaseous or powdered fuel in a chamber operating with resonant vibration of the fuel and air therein pulsations are produced in the fuel and/or air streams prior to their entry into the chamber, the pulsations being of such frequency as to produce the resonance. The frequencies of the pulsations in the fuel and air streams may differ. As shown, powdered fuel is fed from a bunker 3 into a current of air forced through a pipe 2 by a fan 1, the pipe terminating in a tube 7 having a cooling jacket 6 and delivering into a duct 8 having cooling coils 9 and including a combustion chamber 13. Additional air for combustion is supplied by a fan 10 through a pipe 11 having a rotary damper 12 which produces pulsations in the air stream. The duct 8 has a piston 14 adjustable axially to produce resonance in the duct. The duct 8 may discharge tangentially into a cyclone furnace chamber associated with a steam generator.
Patent GB-918953-A (GB)
Title: Apparatus for use in coating tubes internally with finely divided solid material
Inventor: BLACKBURN ALAN PERCIVAL
IPC: H01J9/22
Filed: 1960-04-29
Abstract: 918,953. Transducers. GENERAL ELECTRIC CO. Ltd. April 27, 1961 [April 29, 1960], No. 15136/60. Class 40 (1). [Also in Groups XXXV and XL (a)] In a system for maintaining constant the density of a suspension of powder in a liquid medium (see Group XXXV), the density determines the height of a float 12, Fig. 1, to which is attached a ferromagnetic core 13 which varies the inductance of a coil 15. The change in inductance may be used to modulate the amplitude or frequency of the sine wave output of an oscillator 16, or it may disturb the balance of an A.C. bridge. The resulting signal is used to operate an on/off control valve. If the level of the suspension may vary the coil 15 is carried on a large float. In the system, the viscosity of the suspension also may be kept constant, the detector comprising two coaxial cylinders 30, 32, Fig. 3, between which the suspension is drawn up by a pump 37. The inner cylinder 30 is driven at constant speed while the outer is constrained by a spring 38. A contact 39 engages either of two adjustable fixed contacts 40, 41 to operate a fluid valve at upper and lower limits of viscosity respectively, or alternatively there may be only one fixed contact. Specification 917,832 is referred to.
Patent GB-110591-A (GB)
Title: An Improved Signal Indicator for Mines.
Inventor: REEKIE ROBERT
IPC: B66B19/06
Filed: 1916-10-25
Abstract: 110,591. Reekie, R. Oct. 25, 1916. Mechanical telegraphs; mine signals. - A s i g - nalling device for mines comprises a dial w i t h three pointers A, B, C, and indicationdisks in plates E, F, the latter being raised into position by the coupling rods J, U, Q, Fig. 2, connected therewith and operated from the various levels, each rod, when moved, raising the draw-rod G. A pawl K on the rod G engages with a ratchet-wheel H carrying the pointer B, another ratchetwheel carrying the pointer A being mounted on a sleeve working frictionally on the shaft connecting wheel H and pointer B. The pointer C is actuated by a pawl on the pointer B engaging a pin X on a disk controlling the pointer C, being turned out of sight as the pointer B moves outwardly, and brought back till a spring Z drops into a notch C' on the disk, when the pointer B returns. After the first movement outward of both pointers A, B, the pointer A is kept in position by a lever N engaging its ratchet-wheel. On the second outward movement of pointer B, (this time to its own indication), the engine is started and, releasing levers M, N, allows the pointers A, B to drop back to zero, pointer A in doing so striking a kicker V by which pointer C is turned out of sight. Simultaneously a kicker P on the wheel H strikes a lever 0 which allows the indication disks to fall out of sight. An automatic stop D, Fig. 4, comes into operation for repair work in the shaft. When the pointers A, B come to the indication " 10 " on the dial, the pointer A snaps past a depressible pin Y and is retained, but the pointer B can return under the influence of its time limit cylinder I. When the pointer A is moved to the indication " 11 " it engages the prong E<1> of the stop D, the effect of which is to remove the obstruction of the pin Y, so that, when the engine starts, the pointer A can return to zero, setting stop D in its original position by contact with the prong F' in passing.
Patent GB-1035747-A (GB)
Title: Nuclear reactor safety and/or control system
Inventor: LEBEY JACQUES
IPC: G21C7/11
Filed: 1965-04-09
Abstract: 1,035,747. Reactor control rods. COMMIS. SARIAT A L'ENERGIE ATOMIQUE. April 9, 1965 [April 15, 1964], No. 15235/65. Heading G6C. A nuclear reactor articulated control member is formed of absorber plates hinged together to form a linear series which may be extended or contracted vertically, lengthwise along the series, about the hinges. The degree of extension determines the amount of absorber material inside the reactor core and hence the degree of reactivity. The control member and the associated winch motor are mounted on a plug slidable within an aperture in the biological shield. When fully extended, the plates are shaped to permit the edges of plates in adjacent series to engage and to thus form a succession of frusto-pyramids. The downward motion is damped at the fully extended position, by the winch mechanism.