baber/WOPTO huggingface dataset:
Patent GB-794110-A (GB)
Title: Improvements in or relating to hermetically sealed electrical switching devices, particularly electromagnetic contactors
IPC: H01H50/02
Filed: 1954-12-28
Abstract: 794,110. Electromagnetic switches; switch cases. IGRANIC ELECTRIC CO., Ltd. Dec. 28, 1954 [Jan. 11, 1954], No. 37473/54. Class 38 (5). [Also in Group XXXVI] An hermetically sealed contactor casing comprises a lower part 15 containing the main contacts, an intermediate part 17 containing the operating solenoid, and an upper part 19 containing an interlock switch. The Figures show a 3-pole contactor and the upper surface of the casing part 15 has eight openings with frusto-conical flanges 20, six of these openings receiving terminal assemblies 28 carrying the fixed contact supports 49, the remaining two openings receiving terminals 32 for connection to the solenoid coil 38. The inner and outer surfaces of the part 15 are covered by a fused and solidified vitreous material 26 and the aforementioned six openings each receive a bushing 25 with a frustoconical portion which is bonded to a flange 20 by the material 26. A threaded terminal stud 29 carrying a support 49 is brazed at 31 within each bushing 25, a collar 30 on the stud compressing a rubber seal ring 27. The terminal studs 32 have frusto-conical portions which are bonded to the flanges 20 of the remaining two openings by the material 26. The solenoid 38 is surrounded by a mild steel cup 34 and has a steel core 36 co-operating with a plunger armature 44 having a pin 62 supporting an insulating contact-carrying block 54. An armature return spring 70 acts between the block 54 and a fixed flanged member 42, the armature being limited in its downward movement by the engagement between its lower end and lugs 72 fixed to the member 42. The block 54 carries two outer spring-loaded bridging contacts 56 (Fig. 4, not shown) and a central spring-loaded bridging contact 66, each bridging contact engaging a pair of fixed contacts 50 when the solenoid is energized. The interlock switch assembly comprises a plate 78 pivoted at 79 and insulatedly carrying a pair of bridging contacts 81, the plate being biased clockwise by a spring 83 and operated counterclockwise by a rod 45 fixed to the plunger 44. The rod 45 engages a blade spring 85 fixed at its two ends to the plate 78 whereby the blade may flex to permit overtravel of the rod. The contacts 81 co-operate with respective pairs of fixed contacts 75 carried by further terminal posts 32, the arrangement being such that when one contact 81 is open, the other is closed. The outer surface of the casing part 17 and the top of the part 19 are also covered with the vitreous material 26. A single pole contactor for heavier currents is described with reference to Figs. 6-9 (not shown).
Patent GB-1468937-A (GB)
Title: Pressing apparatus
IPC: D06F47/00
Filed: 1974-08-28
Abstract: 1468937 Laundry presses A MEYER 28 Aug 1974 [30 Aug 1973] 37522/74 Heading D1A Pressing apparatus for squeezing out water from laundry comprises a membrane press having a press body 8 Fig. 1 with a pressure chamber 11 covered by a membrane 10, and a liquid-permeable conveyor belt 6 guided parallel to and beneath the membrane, and which is supported by a support body 2, the belt being movable between a loading station a pressing station under the press body and an unloading station where the hopper 20 of e.g. a dryer is positioned. Prior to the press is a pre-shaping mechanism 43. The press body is vertically adjustable by a am 13..16. In operation a bale 27 of laundry is moved by the belt 6 until it is under the press body 8, optical or mechanical sensors stopping it in position. Pressure fluid is drawn off via lower pipeline 19 from cylinder 13, and the press body descends under its own weight. Pressure fluid is then applied via the upper pipeline 19 until pressure fluid flows through a bore 17 into the pressure chamber 11, forcing the membrane 10 against the bale 27. After a preset time, the chamber 11 is emptied and the press body 8 is raised. The squeezed bale is delivered to the unloading station and drops into the hopper 20. Pre-shaping may be enhanced by an elastic bellows 28 in the housing 21, Fig. 2. The bodies 2, 8 are clamped by a mechanism 35 in the pressing position Fig. 3. In a further embodiment the pre-shaping mechanism comprises an oval upwardly open container 48 Fig. 4 with a swingable front 48' permitting the pre-shaped batch to leave the mechanism. Swinging is effected by a cylinder/piston arrangement 50, 51. The batch is compressed by a pressure plate 50 driven by a cylinder/piston 56, 57. The membrane 10 is clamped to the edge of the press body 8 by a ring 62. Fig. 3. Alternatively the membrane 10' is held in place by a ring 66 Fig. 6 held by a stop 68. This ring may be extended upwards as in Fig. 7 not shown.
Patent GB-1108457-A (GB)
Title: Two axis photoelectric positioning system
IPC: B23Q35/128
Filed: 1966-08-22
Abstract: 1,108,457. Photo-electric position finding. R. B. MARANTETTE and W. F. MARANTETTE. 22 Aug., 1966, No. 37625/66. Heading H4D. [Also in Division G3] A workpiece is positioned along X and Y axes at right angles by control signals derived from a photo-electric cell in dependence on the position of a light beam on the photoelectrie cell which has passed through an aperture in a template interconnected with a table carrying the workpiece. As shown, a cadmium selenide photo-cell comprises resistance portions R1-R4, connected as shown, whereby an off-centre positioning of a light-beam through a master template, Fig. 1, not shown, causes inequality in the values of the resistance portions. Electrodes 24-27 of the photo-cell are energized from a multi-vibrator 28, through cathode followers 29, 30 with square wave signals 31, 32 which are 180 degrees out-of-phase. The positive half of square wave 31 is applied through a diode D1 to electrode 24, and simultaneously the negative half of square wave 32 is applied through a diode D2 to electrode 26; the electrodes 25, 27 are isolated by diodes D3, D4. Any non-centring of the light-beam in the Y axis results in a signal appearing at a point C of the photo-cell which is determined by summing resistors R7, R8 and fed to a cathodefollower 38 controlling a Y axis servomotor, not shown, to move a printed circuit board, to which the template is connected, so that the light beam moves towards the centre C of the cell. A similar system controls the centring of the light beam about the X-axis. Inadvertent drilling of the printed circuit board when the light beam is not falling on the cell is prevented by a signal on line 17 from a differential amplifier 42 comparing a tapped voltage from a potentiometer R15, supplied through diodes D9, D10 with a voltage from diodes D5, D7, which is greater than that from the potentiometer when the resistance portions R1-R4 are not illuminated and have an high resistance.
Patent GB-1526465-A (GB)
Title: Mouldable compositions based on thermosetting condensation resins
IPC: C08G65/00
Filed: 1976-09-10
Abstract: 1526465 Moulding compositions containing aromatic amine derivatives NEYNABER CHEMIE GmbH 10 Sept 1976 [12 Sept 1975] 37533/76 Heading C3R A moulding composition contains a thermosetting condensation resin and an additive of the formula wherein R<SP>1</SP> and R<SP>2</SP> are each H, CH 3 -, CH 3 O-, R<SP>3</SP> 2 N-, R<SP>3</SP> 2 N-C 6 H 4 -, or R<SP>3</SP> 2 N-C 6 H 4 -CH 2 - R<SP>3</SP> being H, C 6 H 5 - or Y-[-OCHXCH 2 -] m -; X is H or a C 1-26  alkyl group; Y is H or R<SP>4</SP>-CO-, R<SP>4</SP> being a C 12-26  hydrocarbon group, and m plus n is 0-100, at least one Y being R<SP>4</SP>-CO- if n is less than 11 and X is H or a C 1-9  alkyl group. Preferably 0À1-10 p.h.r. of the additive are used. In Examples 1-3, 66 mols of ethylene oxide are added to aniline; a 32-mol ethylene oxide/aniline adduct is esterified with 1 mol of stearic acid; and a amide is prepared from methylene dianiline and stearic acid (in 1 : 1 molar ratio). 1% of the products are incorporated into a moulding composition of a phenol-formaldehyde resin, hexamethylene tetramine, wood meal and MgO (Example 4), or of a melamine-formaldehyde resin and chalk (Example 6).
Patent GB-1524358-A (GB)
Title: Azomethine copper complex dyestuffs to organic compound
IPC: C09B55/00
Filed: 1975-09-12
Abstract: 1524358 Azomethine copper complex dyestuffs SANDOZ Ltd 12 Sept 1975 [16 Sept 1974] 37567/75 Heading C4P Novel azomethine dyestuffs have the formula where R 1  is H, COOH, alkoxycarbonyl, aminocarbonyl, mono- or dialkylaminocarbonyl, benzimidazolonyl-S-aminocarbonyl or phenylaminocarbonyl, the phenyl radical optionally being substituted by up to three substituents from Cl, Br and methyl and up to two substituents from CN, NO 2 , CF 3 , methoxy and ethoxy; R 2  is H, hal, alkoxy or NO 2 ; R 3  and R 4  independently are H, hal, NO 2 , alkyl, alkoxy, alkoxycarbonyl, aminocarbonyl, mono- or dialkylaminocarbonyl, phenylaminocarbonyl, alkylcarbonylamino, alkoxycarbonylamino, benzoylamino, or benzylcarbonylamino. The dyestuffs are prepared by metallizing with copper II ions the non-complexed dyestuffs in which the OH group on the benzene ring may be in the form of the methyl or ethyl ether. Alternatively the dyes may be prepared by condensing the corresponding hydroxy-naphthaldehyde compounds with the appropriate aminohydroxy (or methoxy or ethoxy) diphenyl compound in the presence of copper II ions. The compounds (I) are used as pigments for colouring plastics in the mass, paper in the stock, paints, varnishes or printing inks.
Patent GB-1268356-A (GB)
Title: Improvements in nuclear reactors
Inventor: RIGG SHEPHERD
IPC: G21C7/16
Filed: 1968-08-07
Abstract: 1,268,356. Controlling reactors. UNITED KINGDOM ATOMIC ENERGY AUTHORITY. 1 Aug., 1969 [7 Aug., 1968], No. 37768/68. Heading G6C. In a nuclear reactor in which control is provided by a large number of control elements of low worth so that the elements can be switched into or out from the reactor core without the need for slow, careful movement and without the risk of causing disasterous reactivity changes, the control elements are each in the form of a generally cylindrical body, such as a rod 1, with a piston head 4a, 4b at each end and movable in a guide tube 2 closed except for flow connections 9, 20, 21 related to movement and cooling of the element. In one design of p.w.r. the fuel is in the form of clusters of fuel pins with control elements also of pin form interspersed in each cluster. Hydraulic means are associated with each control element to impart a pressure difference across the piston heads to move the control element to the upper end of the guide tube 2 against a restoring bias provided by the weight of the control element assisted by a spring 8. Suction is applied from a pump 10 acting through a selector 11 to a duct 9 (or 17) leading into the top region of the guide tube 2. The pump 10 delivers its output into a spring- loaded recuperator 12 and associated valve circuitry is provided in the form of valves 13, 14, 15, 16 to enable positive pressure to be applied to the duct 9 (or 17). A flow of coolant over the control element between ports 20, 21 occurs when the element is fully inserted (as shown). When suction is applied to the duct 9 a lift is provided below the upper piston head 4a and the control element commences upward movement. The lower piston head 4b moves over the inlet port 20 which reduces the flow of coolant but causes the pressure drop across the core to assist movement of the element by acting below the lower piston head 4b. At the end of its movement, the element experiences a damping effect provided by the upper piston head 4a in the upper end of the guide tube 2. Failure of either the pressure in duct 9 or the core coolant pressure will release the control element which then moves into the position of maximum insertion, being decelerated by a dash-pot effect when the lower piston head 4b passes the inlet port 20.
Patent GB-1348217-A (GB)
Title: Tetrakisazo dyestuffs
IPC: C09B35/56
Filed: 1972-08-14
Abstract: 1348217 Tetrakisazo dyes BAYER AG 14 Aug 1972 [14 Aug 1971] 37827/72 Heading C4P The invention comprises dyes of formula where each R is H or a substituent; each R 1  is H or SO 3 H; Z 1  and Z 2  independently represent an optionally substituted amino group; n is 1 or 2 and m is 1 or 2 and wherein the rings A and B are optionally further substituted. The dyes may be obtained by tetrazotizing 1 mole of a disazo compound of formula and coupling it with 2 moles of a compound of formula The disazo compounds of Formula II may be obtained by tetrazotizing 1 mole of an amine of formula and coupling with 2 moles of the required 2- amino-8-hydroxynaphthalene sulphonic acid or with a mixture of different acids. The dyes may be used for dyeing natural fibre materials and leather, on which they give black shades.
Patent GB-817941-A (GB)
Title: Improvements relating to x-ray apparatus
IPC: H05G1/04
Filed: 1956-12-11
Abstract: 817,941. X-ray tubes. GENERAL ELECTRIC CO. Dec. 11, 1956 [Dec. 12, 1955], No. 37865/56. Class 39(1). An X-ray tube has anode and cathode terminals projecting through the tube envelope, a power supply cable having two conductors attached to the cathode and a third earthed to a conductive casing which encloses the tube and the end of the said cable attached thereto, the casing being filled with a solid insulating medium. A number of suitable resinous insulating materials are mentioned which can be introduced into the casing in liquid form, and then solidified by the addition of a polymerizing agent, so that the X-ray tube is then embedded in solid insulation. As a prior step, the tube may be coated with a layer of vibration-and shock-resistant material such as silicone rubber. The casing is formed of a trough-like member of U-section, which receives the tube, and is then closed by a plate, Fig. 1 (not shown). The grounded casing 28 is in electrical contact at one end with the anode 18, by way of its stem 20, and at the other with the metallic sheathing 45 of the cathode supply cable, by way of a bellshaped collar 48. The sheathing is stripped away between 47 and the exposed conductorends 22, to allow a sufficient distance for voltage gradient. The construction may also include conduits for circulating cooling fluid. U.S.A. Specification 2,340,362 is referred to.
Patent GB-967026-A (GB)
Title: Improvements relating to the remote control of gearbox mechanism
Inventor: STUART DUNCAN JAMES KEITH
IPC: F16H61/30
Filed: 1962-10-06
Abstract: 967,026. Change speed control. AUSTIN MOTOR CO. Ltd. Aug. 8, 1963 [Oct. 6, 1962], No. 37919/62. Heading F2D. In a remote change speed control for a four forward speed and one reverse layshaft gear-box in a motor vehicle, the movements of a gear lever 18 are transmitted to the gear-box by a recuperative hydraulic system comprising a master piston 23, duets 25, 26 and a slave piston 29, for cross-shift, and a master piston 24, ducts 39, 40 and a slave piston 38, for gear establishment, and a recuperation chamber 1 feeds the ducts 25, 26, 39, 40 through respective spring-loaded valves 6, 8, 9, 7 which are normally held open by a spring and gravity loaded solenoid plunger 15 and are closed by their respective springs and any residual pressure in the system when the plunger 15 is raised by energization of its solenoid 14 in response to closing of a microswitch (not shown) when the gear lever is gripped preparatory to movement thereof. The short, lower arm of the gear lever engages superposed rectangular cages 21, 22 which respectively participate only in cross-shift (A) and establishment (B) gear lever movements and are respectively united to the master pistons 23, 24. The cross-shift slave piston 29 is rigid with a rod 30 having an arm 31 engageable with one of three shift rods 32, 33, 34. The establishment slave piston 38 carries a fork 37 engaging an arm 36 splined on the rod 30 for rotation thereof. Specification 735,664 is referred to.
Patent GB-1162918-A (GB)
Title: Circuit for producing steep fronted time pulses
IPC: H03K17/725
Filed: 1967-08-17
Abstract: 1,162,918. Rectifying. GENERAL MOTORS CORP. 17 Aug., 1967 [20 Sept., 1966], No. 37969/67. Heading H2F. [Also in Division H3] A steep-fronted trigger pulse for a thyristor connected to a load able to accept a rapidly rising switch-on transient is produced by a first circuit response to a trigger pulse and connected across a first D.C. source and a second circuit responsive to the first to connect a second D.C. source to the gate of the thyristor. If the output of a full-wave rectifier 21 is sufficiently positive, a trigger pulse from 14 causes thyristor 30 to conduct. This renders conducting a fast turn-on transistor 40 and so connects a D.C. supply 24 to the gate of the main thyristor 10 to cause the latter to conduct and energize the load 16. The capacitors steepen the pulse edge. The trigger signals are synchronized with the A.C. supply and a Zener diode 70 prevents excessive voltage on the transistor when triggering occurs at the peak of the cycle.
Patent GB-1242455-A (GB)
Title: A textile material drying apparatus
IPC: F26B13/02
Filed: 1968-08-09
Abstract: 1,242,455. Drying textile material. MASCHINENFABRIK FRIEDRICH HAAS G.m.b.H. 9 Aug., 1968 [26 Aug., 1967], No. 38041/68. Heading F4G. A web 2 (or piece) of textile material is dried by passing it horizontally through chamber 1, in shorter sections 20, 21 of which the web is held by suction applied by axial flow fans 14, 15 against air permeable belt 7 and in longer sections 22, 23 of which the web is blown toward rollers 30, 31 (or air permeable belts) by air blown by fans 14, 15 and heated by heaters 32, 33. The web may or may not touch the rollers. The belts may be made of flexible wire netting. The rollers may be hollow and air may be ejected therefrom against the web. The spacing of the rollers may increaes from the beginning to the middle of sections 22, 23. The rollers may be arranged in the form of a curve.
Patent GB-1514476-A (GB)
Title: Alkyl and haloalkyl androst-4-ene and androsta-1,4-diene-17beta-carboxylates
IPC: C07J3/00
Filed: 1974-08-30
Abstract: Steroids with antiinflammatory activity and the formula I in which     R' is methyl, ethyl, n-propyl or isopropyl; R'' is methyl, chloromethyl, fluoromethyl, bromomethyl, iodomethyl, 2-fluoroethyl, 2-chloroethyl, 2-bromoethyl or 2-iodoethyl;   X is hydrogen or fluorine; and   @ is a single or double bond are prepared by esterifying or transesterifying, respectively, with an agent supplying the radical R'' or the radical R', respectively, a corresponding 17 alpha -acyloxy-17ss-carboxylic acid or a functional derivative thereof or a 17 alpha -hydroxy-17ss-carboxylate. Resulting  DELTA <1>-steroids of the formula I can subsequently be reduced to the corresponding saturated compounds or resulting 1,2-saturated compounds can be dehydrogenated to the corresponding DELTA <1> compounds. In addition, halogen substituents present in the group R'' can be replaced by other halogens; thus, for example, compounds of the formula I in which R'' is an alkyl group substituted by chlorine, bromine or iodine can be converted by this exchange reaction to the corresponding fluoroalkyl compounds. The compounds of the formula I are distinguished by very good antiinflammatory activity and can be converted into pharmaceuticals for topical or internal administration. <IMAGE>
Patent GB-1319070-A (GB)
Title: Apparatus for sensing a change in light intensity
IPC: G01N21/43
Filed: 1970-08-07
Abstract: 1319070 Monitoring light intensity SOC D'OPTIQUE PRECISION ELECTRONIQUE ET MECANIQUE 7 Aug 1970 [30 Oct 1969] 38145/70 Heading G1A The variation in intensity from the top to the bottom of a light spot 18 focused on an opaque wall 10 of a photo-electric sensor 1 is monitored by moving the sensor, which comprises slits 11-13 of equal width with corresponding identical photocells 14-16 in a direction parallel to the intensity variation. The sensor 1 is reciprocated across the spot, and at the start of each cycle pulses from a generator 21 are supplied to a counter 22. The outputs 51, 52, 53 from the photo-cells 14-16 are supplied to logic circuitry 20 containing two AND gates (28, 31) Fig. 3 (not shown). When the condition (51+53)/2 = 52 is achieved, an amplifier (27) in the circuit changes state, and the counter stops. The count is indicative of the position of median intensity within the spot, i.e. the intensity "boundary". A refractometer employing such a method of intensity measurement is shown in Fig. 5. Light from a source 55 is collinated (56) Fig. 4 (not shown) and after a first reflection at a test liquid/ glass block interface 45, two internal reflections in a prism 43, and a second interface reflection, the beam is focused on to the slits of a sensor 10. The source 55, focusing and collinating assemblies and sensor are attached to an arm 50 which is reciprocated about an axis parallel to the interface 47. As the angle of incidence of the light beam approaches the critical angle, and then passes through this angle, the spot of light focused on the slits undergoes a pronounced change in intensity as the "boundary" sweeps across the light spot. Counting stops when the "boundary" reaches the the centre of the sensor. The recorded count then corresponds to the critical angle, i.e. to the refractive index of the text liquid. In the refractometer the counting pulses result from the motion of the light source 55 and a photocell (62), attached to the arm 50, past opposite sides of a stationary grating 65. To compensate for temperature variations in the test liquid, the grating lines may be non-parallel. A gearing arrangement 69 controlled by a temperature sensor 71 adjusts the part of the grating in the light path and hence the frequency of the pulses.
Patent GB-345293-A (GB)
Title: Improvements in or relating to telegraphic and wireless transmission systems
IPC: H04L27/26
Filed: 1929-12-12
Abstract: 345,293. Type-printing telegraphs. SOC. ANON. BREVETTI ITALIANI ESTERI S.A.B.I.E., 47, Via Bertola, Turin, Italy. Dec. 12, 1929, No. 38164. Convention date, Dec. 14, 1928. [Class 100 (iv).] Carriage-returning mechanism ; letter-spacing mechanism.-In a telegraphic and wireless transmission system the signals consist of combinations of two different frequencies selectively operating tuned electromechanical relays 100<1> .. 100<9> which prepare printing circuits at the contacts 104I, 104II, .. of a recombinator 103. The arms 105, 106 of the recombinator are rotated synchronously with a type-wheel A mounted in a printing frame 140, the leaf passing under the hammer of a printing relay 135 corresponding to the letter represented by the two contacts engaged by the arms 105, 106. When a printing circuit has been prepared and the arms 105, 106 engage the appropriate contacts, the hammer of the relay 135 strikes the leaf of the type-wheel A. At the same time an electromagnetic coupling 138 is energized causing a gear wheel 185 to be clutched to a screw-threaded shaft 139 which advances the printing frame for the next letter. A pawl 161 effects through relays the declutching of the shaft 139, and opens the circuit of the printing relay. When the carrier reaches the end of a line, it engages a contact 155, effecting the energization of relay 157 to hold the pawl 161 whilst the carrier is returned to its initial position at the commencement of a line by a spring (not shown). Simultaneously a relay 164, energized in parallel with the relay 157, actuates a ratchet and pawl 166 to step the paper carrier 168 for a fresh line. When the printer frame reaches its initial position, it moves a spring member 159 to break the circuit of the relays 157, 164.