baber/WOPTO huggingface dataset:
Patent GB-379512-A (GB)
Abstract: 379,512. R÷ntgen-ray apparatus. BRITISH THOMSON-HOUSTON CO., Ltd., Crown House, Aldwych, London.-(Assignees of Wantz, J. B.; 324, North Harvey Avenue, Oak Park, Illinois, U.S.A.) Aug. 31, 1931, No. 24478. Convention date, Aug. 30, 1930. [Class 98 (i).] A mounting for a heavy X-ray head, particularly of the enclosed, oil-immersion type, comprises a base, a standard rotatable on a vertical axis on the base, a carriage slidably mounted upon the standard and a pivoted support for the head rotatable about an horizontal axis in the carriage. As shown, the head 15 is pivotally supported in a forked cradle 22 having a shank 23 pivoted in the front member 26 of a carriage 26, 38, 39, 37. The side members 38, 39 of the carriage engage rollers 128, 130 on brackets extending from a sleeve 118 slidably engaging a standard 78 carried by a casting 72 pivotally supported upon a base 59 and adapted to be swung through a right-angle to bring the head into and out of operative position. The base is movable along rails 46 supported in end members 44 furnished with adjusting feat 50 ; and is held in adjusted position by a clamp actuated by a hand-wheel 84 and engaging a third rail 47. A second standard 80 is provided to preserve alignment of the carriage and head, such standard being embraced by brackets 124 on the sleeve 118. Above the sleeve 118 is a second sleeve 133 supporting a fluoroscopic screen 157 through jointed members 147, 151, 153 and fork 155. The standards 78, 80 are hollow and house counterweights for the carriage and screen respectively. The sleeves 118, 133 may be coupled by a latch member 141 or the sleeve 133 may be locked to the standards by a member 143. A spring shoe, releasable by a handle 166, clamps the sleeve 118 to the standard 78. The head 15 is secured in adjusted position by a clamp 203 associated with the cradle 22 and by a clamping ring engaging the shank 23 and controlled by a hand-lever 36. A hand-wheel 85, below the hand-wheel 84, controls a spring locking member holding the standard 78 in either of its extreme positions. An adjustable stereoscopic shift of the carriage is provided by a rod 170, pivotally supported in brackets adjacent the member 38, co-operating with an adjustable slotted member secured to a collar 173 surrounding the member 38 and connected to the sleeve 118 ; the carriage is locked in its extreme positions, determined by the slotted member, by a cam on the rod 170 which is turned by a handle 171.
Patent GB-1148170-A (GB)
Title: Bobbin creel for textile machines
Inventor: REINERS WALTER
IPC: D02H13/00
Filed: 1966-08-24
Abstract: 1,148,170. Creels. W. REINERS. 24 Aug., 1966 [28 Aug., 1965], No. 37957/66. Heading D1M. In a bobbin creel a holding device for the end of yarn at each tensioner 5 after being cut comprises a suction nozzle 21 which receives a loop 8 of the yarn formed by a plunger 19 moving through a slot 18 in a plate 17. A cutting edge 24 may be associated with each holding device so that the yarn is cut automatically on removal of the bobbin. A yarn engaging and knotting device for the yarn end from a fresh bobbin as in S'pecification 1148169, may be used in association.
Patent GB-1389985-A (GB)
Title: High power beam tube containing fieldshaping probe
IPC: H01J25/02
Filed: 1973-08-10
Abstract: 1389985 Thermionic valves VARIAN ASSOCIATES 10 Aug 1973 [24 Aug 1972] 37963/73 Heading H1D A linear beam tetrode switch tube comprises a concave thermionic cathode 6; a centrally apertured anode 4 and a collector electrode 5 having a cavity 17 with a constricted mouth for inhibiting egress of electrons; a tapered probe 20 in the cavity and focusing means 21 at the mouth of the cavity maintain a laminar electron flow of uniform current density in the mouth. The tube includes a Pierce type gun with a spherical dimpled cathode 6, a focusing electrode 8 and shadow and control grids 9, 6 with their apertures aligned with the dimples. The probe is conical and air, water or oil cooled; it may be insulated from and at a different potential from the collector and may be coated or grooved to inhibit secondary electron emission.
Patent GB-1162497-A (GB)
Title: Plastics Structural Element.
Inventor: MOLLER HANS GUNTER
IPC: B29C51/14
Filed: 1966-08-25
Abstract: 1,162,497. Laminated panel; sheet forming. H. G. MOLLER. 25 Aug., 1966 [25 Aug., 1965], No. 38239/66. Headings B5A and B5N. A structural element includes a thermoplastic panel 10 having a translucent or transparent zone 11 deformed out of the general plane of the panel to constitute a window in the panel, and a reinforcement 12 of reinforced polymerization resin bonded to the panel outside the boundary of the zone 11. The panel 10 maybe of P.V.C. or an acrylic resin and the reinforcement 12 is applied thereto before the resin of the reinforcement is fully set or cured, this setting or curing and bonding of the reinforcement to the panel 10 occurring during moulding of the panel. The reinforcement 12 may include glass fibre mats or fabrics or plastics fabrics as reinforcement and may be applied to the panel 10 either as a pre-impregnated mat or by a wet process, e.g. as a glass fibre reinforced epoxy resin. The element may include more than one panel 10 and the reinforcement 12 may be on either side of a single panel or between a plurality of panels. In one embodiment the space between two panels is partially filled by foamed material. As described, the zone 11 of the panel 10 is moulded by a deep drawing process. In one method the panel 10 is heated and sucked into a mould partially lined by the reinforcement 12. In another method, Fig. 7, the panel 10 lies between the reinforcement 12 and the mould walls and the reinforcements are held against the panel during moulding by a diaphragm 19, e.g. of silicone rubber sucked into contact with the reinforcement 12 and zone 11. In a further method the zone 11 is domed by compressed air blown into an open bottomed mould, such mould may include an insert which enables different air pressures to be applied to different areas of the panel. In a method for use in moulding an element comprising two panels, one of the panels is domed by suction applied from below and the other by compressed air applied from above. In a further method pieces of reinforcement are placed in the mould in overlapping relation so that after deep drawing they lie in juxtaposition. The heat used to soften the panel 10 for moulding also serves to cure the resin of the reinforcements but additional heat may be supplied, e.g. by infra-red radiators. The or each panel may be screen printed prior to moulding. More than one domed zone may be provided in the structural element which may be used in building e.g. walls, ceilings, or roof lights, or in motor vehicle bodies.
Patent GB-1049558-A (GB)
Title: Improvements in or relating to deep fried potato products
IPC: A23L19/18
Filed: 1965-09-08
Abstract: 1,049,558. Deep-fried potato products. NATIONAL STARCH & CHEMICAL CORPORATION. Sept. 8, 1965 [Nov. 20, 1964], No. 38281/65. Heading A2B. In the deep-frying of potato products in hot edible cooking oil, the entire surface of the raw potato is coated with an amylose product, or, if the product is made up of a number of fragments of potato compressed together, the fragments are either entirely coated or intimately mixed with the amylose product prior to the cooking step. By "amylose product" is meant whole starch composed of at least 55 weight per cent. amylose, amylose resulting from the fractionation of whole starch into amylose and amylopectin, and derivatives thereof, such as thin boiling products obtained by treating the amylose with heat and/or acids or with oxidizing agents, and amylose esters such as the acetate, propionate, and butyrate, or amylose ethers such as hydroxyethyl, hydroxypropyl, carboxymethyl, or benzyl.
Patent GB-860809-A (GB)
Title: Improvements in or relating to watch self-winding mechanisms
IPC: G04B5/18
Filed: 1957-12-10
Abstract: 860,809. Watches. KELLENBERG & CO. A.G. Dec. 10, 1957 [Dec. 13, 1956], No. 38286/57. Class 139 In a watch self-winding mechanism the inertia mass 5, Figs. 2 and 3, is integral with or attached to the inner race 81, 8<SP>11</SP> of a ball or roller bearing 9 the outer race 10 of which is attached to the case back 4 by a circular clip 11. The race 10 may be of two parts and may be integral with the case back. An eccentric pin 12 extends from the inertia mass 5 and engages the forked end of a lever 13 which carries a pawl 14 which drives a ratchet gear 16 of the winding train.
Patent GB-998732-A (GB)
Title: Positioning mine cars in pit cages
Inventor: BURNS JOHN NORMAN
IPC: B61K7/02
Filed: 1960-11-08
Abstract: 998.732. Locating trucks in mine cages. COAL INDUSTRY (PATENTS) Ltd. Nov. 8, 1961 [Nov. 8, 1960], No. 38345/60. Heading B8E. A car is correctly positioned in a mine cage by a movable member which engages the car. The wheels W are engaged by chocks 17, 18, 19 which are mounted on rotatable axles 10, 11, 12, 13. A spring 34 urges the chocks into engagement with the wheels and a ram 36 withdraws them through linkages 32, 25, 29, 26. Connected to this linkage by levers 38, 40, 41, 43 is a signal 44 which indicates when the car is positioned correctly. If the car is not correctly positioned the bars 46, 47, interconnecting chocks on the same side, abut the wheels and prevent an incorrect signal being given until the chocks have moved the car into the correct position in the cage. Fig. 2 shows a rotary chock which is let into the rail R and has a wedge-shaped cam-surface 51. The chocks may be applied to the opposite sides of the wheels to that shown and several cars may be positioned in a cage. The chocks may be released and the signals given in any known manner.
Patent GB-865791-A (GB)
Title: Improvements in or relating to heavy duty rectifier equipment
IPC: H02M7/06
Filed: 1958-12-01
Abstract: 865,791. Rectifying. MASCHINENFABRIK OERLIKON. Dec. 1, 1958 [Dec. 2, 1957], No. 38728/58. Class 38 (2). Rectifier equipment comprises a transformer having a magnetic core on each leg of which are provided a number of parallel-fed primary windings 8 each associated with one or two secondary windings 9. Each secondary winding feeds a set of bridge connected semi-conductor rectifier elements 4 the outputs of which are fed in parallel to D.C. output lines. The arrangement is such that in the event of excess current a switch 10 in the primary supply is operated. The D.C. output is smoothed by zig-zag wound interphase transformers as shown in Fig. 5.
Patent GB-368877-A (GB)
Title: Improvements in and relating to pit props, arches and the like
IPC: E21D15/18
Filed: 1930-12-23
Abstract: 368,877. Mine roof supports. THOMAS, W., Porth Farm, Rhondda, Glamorgan. Dec. 23, 1930, No. 38755. [Class 20 (ii).] Pit-props or arches for mines are formed of two main members 7, 8, with inclined meeting surfaces 9 which are maintained in locked position by means of a dowel or ball 12 which enters a recess in the upper member and is mounted to slide in a recess 11 of the other member, debris or rubble being placed beneath the locking member. In order to unlock the joint, a sliding sleeve 14 is provided which normally covers discharge apertures 13 for the rubble, but can be slidden downwardly to allow discharge of rubble and lowering of the locking member, so that the joint is free and the prop collapses. To provide for adjustability, a sliding-sleeve extension 19 may be provided supported by a wooden wedge 22 or by means of rubble 25 on the part 8 of the prop.
Patent GB-859735-A (GB)
Title: Phosphate esters and insecticidal compositions containing same
Inventor: LAMBIE ALAN JAMES
IPC: C07F9/09
Filed: 1956-12-19
Abstract: The invention comprises compounds of the formula <FORM:0859735/IV(b)/1> where R1 and R2 are the same or different alkyl groups, X, X1 and X2 are oxygen or sulphur, R3-R10 are hydrogen, halogen or alkyl groups, the same or different, and n is an integer; and their preparation by (1) reacting <FORM:0859735/IV(b)/2> where Z is an alkali metal or hydrogen, and Y is a halogen; and (ii) reacting <FORM:0859735/IV(b)/3> where Z is a halogen and Y is an alkali metal or hydrogen. Solvents and bases are preferably present in each case.  According to the Provisional Specification only R1 and R2 may be hydrogen.  Reference has been directed by the Comptroller to Specification 814,587.ALSO:Insecticidal compositions containing as active ingredient a compound of the formula:  <FORM:0859735/VI/1> where R1 and R2 are the same or different alkyl groups, X, X1, and X2 are oxygen or sulphur, R3-R10 are hydrogen, halogen or alkyl groups, the same or different, and n is an integer.  The compositions may contain diluents, solvents, wetting agents, stickers and other conventional components, as well as other insecticidally active compounds.  The compositions may be prepared in wettable powder or miscible oil formulations suitable for dilution with water; examples use aqueous solutions.  According to the Provisional Specifications only, R1 and R2 may be h hydrogen. Reference has been directed by the Comptroller to Specification 814,587.
Patent GB-1399730-A (GB)
Title: Tubular washing machine
IPC: D06F31/00
Filed: 1972-08-21
Abstract: 1399730 Washing and rinsing machines CTC AB 21 Aug 1972 [23 Aug 1971] 38936/72 Heading D1A An elongated washing drum divided into sections through which laundry progresses as the drum is rotated is provided with an internal baffle 18 with an aperture 19 of for example 40-60% of the drum diameter to control the flow of laundry and with external buckets 14 which lift washing liquor from chambers 11, 12, 13. The drum is mounted on rollers 23 in a housing, the inlet end 10a of which may be lifted above or lowered below the output end about a pivot 21 by a device 22. To limit mixing of the liquids in the prewash, main wash and rinsing sections part 25 of the wall of the drum is perforated in each section (Fig 2). Each bucket 14 includes a radial wall 29 extending into a perforated section 27 (Fig 2) of the associated lifter 26 and as the drum is alternately rotated in opposite senses lifts liquid from below the drum and discharges it at a higher level through the lifter apertures 27, onto the laundry the liquid then passing out of the drum through the apertures 25. In modifications the drum is tapered instead of having a baffle 18 and the buckets 14 are replaced by a fixed pipe system for supplying liquids.
Patent GB-336878-A (GB)
Title: Fountain pen holder
IPC: B43K5/17
Filed: 1929-12-23
Abstract: 336,878. Kutter, L. Dec. 22, 1928, [Convention date]. Nib-retracting reservoir pens; stopping ink-supply. - In nibretracting reservoir pens, the nib is provided with a spring flap 1, preferably cut from the material of the nib, and adapted to be forced inwards, when the nib is in retracted position, by the engagement of a projection 3 thereon with a part of the holder so as to close the passage 5 in the feed-bar 4.
Patent GB-1326612-A (GB)
Title: Cw doppler transceiver system
IPC: G01S15/50
Filed: 1970-08-14
Abstract: 1326612 Doppler transceiver systems; transistor detector and squaring circuits F HOFFMANN-LA ROCHE & CO AG 14 Aug 1970 [10 Sept 1969] 39361/70 Headings H3T and H4D In a system wherein a common transducer transmits a CW energy signal towards a moving surface and receives the reflected signal and wherein a Doppler frequency signal is obtained by amplitude demodulating the composite of the transmitted and received signals, AM transmitter noise is eliminated by driving the transducer with an amplitude-limited square wave signal. The CW energy signal may be ultrasonic or electromagnetic waves. Ultrasonic applications include detecting the velocity of an arterial wall or portion of a heart or foetus. The transmitter circuit, Fig. 2, comprises a sine-wave 2 MHz crystal oscillator 11, the output of which is squared off by emitter-coupled non-saturating limiting amplifier transistors 21, 22 which drive saturating switching stages 14, 15 to provide an output from transformer 19 to energize a transducer represented by impedance 44. The transmitter circuit output impedance as seen from the transducer terminals is made appreciably higher than the transducer impedance, so that reflected wave energy received by the transducer is not significantly shunted to earth by the transmitter output impedance. Coil 45 matches the transducer impedance to the input impedance 50 of the receiver circuit in which (Fig. 3, not shown) a diode (51) and capacitor (53) provide the amplitude-demodulated Doppler signal. A feedback amplifier circuit is used to differentiate the Doppler signal to give an output representing the velocity of the moving surface. An alterna - tive demodulation circuit, Fig. 5, is intended to cancel the spurious AM modulation arising if the transmitted CW signal is asymmetric with respect to zero volts. Diode 71 and network 73 provide a positive amplitude-demodulated Doppler signal, and diode 72 and network 74 provide a negative one. The positive signal is fed as one input to summing amplifier 76 and the negative signal is inverted at 77 then fed as a second input to the summing amplifier. A difference amplifier may be used instead of inverter 77 and amplifier 76. Instead of the Fig. 2 circuit, a simpler, transformerless transmitter circuit may be used (Fig. 6, not shown).
Patent GB-851052-A (GB)
Title: Improvements relating to the coupling of an electro-magnetic transducing head or similar signal source to a transistor amplifier
IPC: H03F3/183
Filed: 1956-12-31
Abstract: 851,052. Magnetic recording &c. apparatus. TELEFUNKEN G.m.b.H. Dec. 31, 1956 [Dec. 31, 1955], No. 39625/56. Class 40 (2). [Also in Group XL (c)] In a circuit for connecting a magnetic tape reproducing head having a non-linear frequency characteristic, to a transistor amplifier having a low resistive input impedance, arrangements are made to match the impedance of the head to the input impedance of the transistor at two extreme frequencies W 1 , W 2  and the loss due to mismatch between these frequencies is used to correct the non-linearity of the frequency characteristic of the head. As shown, Fig. 6, the reproducing head may be considered as a generator producing a voltage U 0  having the frequency characteristic of Fig. 2 together with an internal impedance having resistive and inductive components R, L. Coupling to the input impedance Re of the transistor is effected by a parallel network L 3 , C 2 , R 2 . Capacitor C 2  is series resonant with L at frequency W 2   thereby matching the internal resistance R to the load Re; and circuit L 3 , C 2  is parallelresonant at a frequency between W 1  and W 2  to give a characteristic as shown in Fig. 3, the dip in the curve of Fig. 3 compensating for the rise in Fig. 2 to produce an output response as shown in Fig. 4. Matching at frequency W 1  occursdue to the low impedance of the inductances L, L 3  at this frequency. In an alternative embodiment, Fig. 7, the resistance R is matched to the transistor input resistance Re at zero frequency, the inductive components L, L 2  then introducing loss as the frequency rises until the circuit comes into resonance due to the shunt capacitor C 1 . Circuits are described having the transistor connected in a conventional common emitter circuit.
Patent GB-1486829-A (GB)
Title: Hearth chamber walls
IPC: F27D1/14
Filed: 1974-09-10
Abstract: 1486829 Hearth chamber walls DIDIER-WERKE AG 10 Sept 1974 [19 Sept 1973] 39532/74 Heading F4B A horizontally sloping hearth chamber wall includes wall supports 2 and anchoring devices comprising plate-like members 6 recessed at 5 to engage the wall supports and having projections 8 that engage recesses in refractory bricks 10, a separate brick being hung on each projection. Each projection 8 is stepped relative to each other projection in height corresponding to the horizontal slope of the wall and the projections may be angled relative to the plate-like member 6. The anchoring devices may be in two parts (6a) and (6b), Fig. 4a (not shown), and the plate-like members may be given an angular formation (18), Fig. 5c (not shown). Steel wedges 14 may be used for fixing the anchoring devices to the wall supports.
Patent GB-1046460-A (GB)
Title: Fuel elements for nuclear reactors
Inventor: RITCHIE WILLIAM
IPC: G21C3/14
Filed: 1962-10-22
Abstract: 1,046,460. Fuel elements. ENGLISH ELECTRIC CO. Ltd. Oct. 21, 1963 [Oct. 22, 1962; June 7, 1963], Nos. 39936/62 and 22841/63. Heading G6C. A nuclear reactor fuel element is adapted to engage endwise an adjacent fuel element, there being a seating member secured to the end of the fuel element for engagement with said adjacent fuel element when positioned in a fuel channel, the seating member being of a material such that adhesion between the seating member and the adjacent fuel element is substantially less than that of the adhesion between the materials of the fuel elements. The adhesion referred to is that which is caused by locking of surface irregularities and corrosion bonding under pressure at the interface. A spider end fitting 10 is screwed into one end of a fuel element 11, and has a surface 12 suitable for gripping by a grab-head. A frusto-conical recess 13 in the spider has the seating member 16 (carbon) secured within it by peening over portions 15a of a flange 15. A conical end 17 of the fuel element above seats on the seating member 16. In a first modification (Fig. 3, not shown), the spider end is adapted for engagement internally with a grab-head, and in a further modification, a stainless steel conical shim is placed between the members 16 and 17 and secured to the member 17. The assembly may be arranged with the cone 17 below the associated seating, or the carbon seating members may be attached to the cone 17, in which case, if a shim is used, it is attached to the spider end fitting 10.
Patent GB-948030-A (GB)
Title: Helicopter lamp installation
IPC: B64D47/06
Filed: 1961-11-08
Abstract: 948,030. Aircraft lamps. M. C. HARVEY. Nov. 29, 1962 [Nov. 8, 1961], No. 39947/61. Heading F4R. A lamp installation for helicopters and other aircraft capable of hovering comprises a first actuator enabling the lamp to be rocked through 90 degrees into any position between a fully-retracted and a fully-extended position and a second actuator by which the lamp can be rotated continuously or intermittently about an axis at right angles to the first axis. The lamp s is carried on an arm formed of two casings e, h and an electric motor, the arm being rigid with a shaft m carrying an arm r to which is attached the plunger p of an electric actuator for tilting the arm r and hence moving the lamp s from retracted to extended position. The lamp is mounted on a shaft passing through the casing e and coupled to a gear train in the casing h, driven by the motor. Slip rings and brushes are provided on the shaft inside the casing e and connected respectively to the filament or filaments of the lamp and to the electric supply source.