baber/WOPTO huggingface dataset:
Patent GB-995454-A (GB)
Title: Improvements in cryogenic pumping devices
IPC: B64G7/00
Filed: 1962-07-18
Abstract: 995,454. High vacuum pumps. GENERAL ELECTRIC CO. July 18, 1962 [Aug. 7, 1961], No. 27601/62. Heading F1N. [Also in Division F3] A cryogenic pump 8, Fig. 1, for evacuating an outer-space simulating chamber 2 comprises a plurality of metal baffle plates 28, Fig. 2, projecting from, and in thermal contact with, metal panels 25 cooled by liquid nitrogen in coils 26 and forming a part spherical vessel surrounding a test member 12 within the chamber 2, each baffle plate 28 having recesses 44 formed by walls 41 projecting from a backing plate 29. Condensing fins 31 cooled by liquid hydrogen or helium in coils 32 are carried by plates 25 so as to project between baffle plates 28. The chamber 2 is connected to external diffusion pumps 21 and mechanical pumps 23.
Patent GB-533118-A (GB)
Title: Improvements in and relating to caps for electric discharge lamps
IPC: H01J5/54
Filed: 1939-10-10
Abstract: 533,118. Lamp caps. BRITISH THOMSONHOUSTON CO., Ltd., and SCOTT, W. J. Oct. 10, 1939, No. 27612. [Class 38 (i)] A cap for a tubular lamp having contact pins projecting in an axial direction from each end cap 4 and a guard over the pins to prevent accidental contact, as described in Specification 532,590 has the guard formed as a channel-shaped member 6 located transversely of the cap over the pins. The member 6 may be of metal or insulating material and may be formed integrally with the insulating cap 4. Holes 7 may be provided in the member 6 to facilitate soldering the lead-in wires 3 to the ends of the pins 5.
Patent GB-1382320-A (GB)
Title: Fluid strainer
IPC: B01D29/35
Filed: 1972-06-13
Abstract: 1382320 Filter BALTIMORE AIRCOIL CO Inc 13 June 1972 [14 July 1971] 27640/72 Heading B1D A filter comprises a tubular housing 3 enclosing an open-ended filter element 6 and having an end inlet 13, one or more filtrate outlets 12 and an end outlet 15 for periodic flushing of solids from inside element 6, the element 6 carrying external flanges 7 which co-operate with the element and housing to define annular cavities enclosing O-rings 8, which deform on tightening nuts 14 (Fig. 2, not shown) to seal the element to the housing. The lower O-ring also seals. the housing 3 to end plate 4, but for high pressure operation a further seal ring 9 is provided. Additional flanges 7 may be spaced along the element for reinforcement and may be perforated unless the housing has a plurality of outlets 12 (Fig. 4, not shown) appropriately spaced. The elements 6 may be perforated metal or wire gauze, and O-rings 8 may be neoprene sponge. The construction is cheap and involves minimum machining. Annular sections 1 and 2 can be stamped out in one operation and welded to section 3, or sections 1, 3 can be integrally drawn. Flanges 7 are stamped and welded to element 6.
Patent GB-536608-A (GB)
Title: Improvements in or relating to electric motor control systems
IPC: H02P25/28
Filed: 1939-10-11
Abstract: 536,608. Control of A.C. Motors. ARMSTRONG, J. J. V. (Vickers, Inc.). Oct. 11, 1939, No. 27641. [A Specification was laid open to inspeotion under Sect. 91 of the Acts, April 15, 1940.] [Class 38 (iii)] A motor provided with a primary winding A, a secondary winding C, and a direct-current speed controlling winding B has its winding B fed through rectifiers 10, 11, from the source A1, A2, A3, supplying the winding A, and the grids 14 of the rectifiers are controlled in accordance with but at a greater rate than the fluctuations in the voltage of the supply so that the speed of the motor is unaffected. The control is provided by a resistance 37 connected to the grids 14 and supplied with current from A.C. source through a further rectifier 30. A coil 18 by which the D.C. energization of the motor is normally controlled, has further saturating windings 27, 28, connected to the secondary winding C. The secondary currents vary with the load, and thus the energization of the control winding B is automatically varied so that the speed of the motor is maintained. In a modification, Fig. 2, not shown, resistances which have a positive temperature co-efficient, replace the windings 27, 28. Specification 498,586 is referred to.
Patent GB-1106245-A (GB)
Title: Improvements in or relating to rotary-piston internal combustion engines
Inventor: MOSIG RAINER
IPC: F02B53/00
Filed: 1965-06-30
Abstract: 1,106,245. Rotary-piston I.C. engines. SACHSENRING AUTOMOBILWERKE ZWICKAU VEB. June 30, 1965, No. 27744/65. Heading F1F. In a rotary-piston I. C. engine of the trochoidal n and n + 1, radial distortion of the inner wall 4, Fig. 4, of the peripheral portion 1 of the casing due to lack of uniformity of temperature in the region of an aperture 6, for example for a sparkplug, is minimized by increasing the thickness of said wall in an axial direction away from the aperture. In a second embodiment, Fig. 5, a strip 14 of a material having a thermal conductivity differing from that of the material of which said wall is made is embedded in the wall on either side of the aperture 6. The rate of flow of heat through the wall into a cooling-water chamber 5 adjacent thereto may be modified by perforations 15 in each of the strips 14. Alternatively, the strips are replaced by a plurality of axiallyorientated bores (16), Figs. 7 and 8 (not shown), in said wall, which bores may be filled with a material (17) having a thermal conducting differing from that of the material from which said wall is made.
Patent GB-1167247-A (GB)
Title: Apparatus for use in Effecting Make Up and Transfer in a Hosiery Knitting Machine
IPC: D04B9/54
Filed: 1967-06-16
Abstract: 1,167,247. Knitting. SINGER CO. 16 June, 1967 [20 June, 1966], No. 27777/67. Headings D1C and D1K. In. knitting a stocking having a roll welt the transfer of the held course of loops to needles is begun at a point spaced circumferentially from the first stitch of the stocking. The dial of the machine includes two bolt cams 28, 34 depending into the transfer bitt butt track 26 to force the bits into and out of the needle circle respectively. The needles comprise two groups of consecutive needles having long and short butts 60, 62 respectively. Alternate, even, needles cooperate with transfer bitts. The long butt needles cooperate with short butt transfer bitts, and vice versa. The first course of the stocking is knit on odd needles only, with cam 68 acting on butts 66 of odd jacks 64. During the second half of the course cam 74 is inserted so that during the next revolution all needles take yarn, which the even needles hold until welt courses are begun, and the dial bolt cams are inserted. During the third revolution the transfer bitts are projected by the cam 28 whose operation with that of cam 34 has been so arranged during the previous course that the short butt group preceeding the long butt group, and odd needles only take yarn. Thus a loop is formed between alternate needles, extending across and held by the transfer butts. The first loop of the held course is at substantially the same circumferential location as the first stitch of the stocking. On the revolution following the welt courses, knitted on all needles, the even needles are raised before the knitting station so that they can take the held loops. On this revolution the bolt cams are inserted while the short butts pass so that projection of the long butt transfer bitts to transfer loops occurs half way through the revolution. Commencement of the transfer is thereby spaced circumferentially from the commencement of the stocking, viz at the opposite side of the cylinder from needle 1.
Patent GB-815392-A (GB)
Title: Improvements in or relating to cathode ray tube apparatus for the inspection of articles
Inventor: NUTTALL THOMAS CAYTON
IPC: G01N33/00
Filed: 1956-09-11
Abstract: 815,392. Photo-electric inspection. U.D. ENGINEERING CO. Ltd. Aug. 29,1957 [Sept. 11, 1956], No. 27778/56. Class 40 (3). In apparatus for detecting contamination of a transparent vessel 10, light from the flying spot of a cathode-ray tube 1 is focused on the bottom of the vessel by a lens 9 and is detected by a photo-cell 13 the output of which is balanced against that of a photo-cell 16 which receives light from an inclined glass plate 17.
Patent GB-149155-A (GB)
Title: Improvements in and relating to mops
IPC: A47L13/252
Filed: 1919-11-11
Abstract: 149,155. Shickluna, J. J., and Buffalo Specialty Co. Nov. 11, 1919. Mops.-Relates to mops in which a looped mophead is passed on to an open wire frame supported on an adjustable handle, and consists in forming the frame a with one free end e lying in the boundary of the frame, the other end being first turned inwardly at b to form a filler portion for the mophead, and then returned in a plane above the plane of the frame as at d to form the pivot for the handle f. The handle-socket g is bifurcated and secured at any angle by means of a washer k with notched sleeve l, friction-disks i, distance piece m, washer k<1>, and screw-nut n.
Patent GB-825686-A (GB)
Title: Improvements in the production of vinyl compounds
IPC: C07C69/602
Filed: 1957-09-04
Abstract: Compounds bearing an unsubstituted vinyl group on a quaternary carbon atom are prepared by reacting with acetylene in the presence of a compound of a metal of Group IIB of the Periodic System which is soluble in the reaction mixture as catalyst at a temperature between 50 DEG  and 300 DEG  C. a compound of formula <FORM:0825686/IV (b)/1> wherein X1 represents an acyl, carbalkoxy, carbaryloxy, carboxylic acid amide or nitrile radical, X11 an acyl, aryl, carbalkoxy, carbaryloxy, carboxylic acid amide or nitrile radical and R an alkyl, cycloalkyl, alkenyl, aryl, aralkyl, or heterocyclic radical, and in which X1 and X11 may form with each other or with R a carbocyclic or heterocyclic ring. Preferred alkyl, alkenyl, acyl and carbalkoxy radicals are those containing a small number, e.g. 1-6, of carbon atoms.  Suitable starting materials include b -diketones, a -arylcarbonyl compounds and the esters, amides and nitriles of b -keto acids, b -di-carboxylic acids and a -aryl fatty acids provided that R has the above significance and is not hydrogen.  Suitable catalysts include the salts of the Group IIB metals with C1-20 aliphatic monocarboxylic acids, aliphatic dicarboxylic acids, alicyclic and aromatic acids.  Increased pressure is advantageously used, e.g. 5 to 50 atmos. or even 300 atmos., the acetylene being diluted with inert gas.  In one embodiment, 5-10 atmos. of N2 are forced into a pressure vessel containing the starting material and catalyst, the vessel heated to the reaction temperature giving a pressure of 10-12 atmos. and acetylene is then forced in to a total pressure of 25 atmos.  The acetylene used in the reaction is replaced continuously or periodically.  Solvents may be used, e.g. aliphatic or aromatic hydrocarbons, alcohols, ethers and N,N-dialkylated acid amides. If the starting material contains a further vinylizable group of the same or a different kind this may also be vinylized, e.g. both nitrogen atoms of 5-alkyl- or aryl-barbituric acids may be completely or partly vinylized.  Specification 539,417, [Group IV], is referred to.
Patent GB-1134731-A (GB)
Title: Carpet seaming tape
Inventor: COLES DONALD ALLAN
IPC: A47G27/04
Filed: 1966-06-22
Abstract: 1,134,731. Seaming non-metallic sheet material. ROBERTS (SMOOTHEDGE) Ltd. 22 June, 1967 [22 June, 1966], No. 27898/66. Heading B5K. [Also in Division A4] Edges 5, 6 of carpet pieces are retained in abutting relationship and secured to a floor by a seaming tape which consists of a creped paper backing strip 1, a fabric webbing strip 2 secured thereto, and, between these strips spaced spring steel strips 10, having carpet-engaging prongs 11 which project through the webbing, and apertures 12 for passage of tacks to secure the tape to the floor. The strips 10 and the webbing strip are adhered or stitched to the backing strip, the webbing being of rot-proof polyethylene terephthalate woven to be inextensible under transverse tension. In use, the tape is secured to the floor by tacks, the webbing, coated with adhesive and the carpet edges being pressed thereon and impaled on the prongs.
Patent GB-693343-A (GB)
Title: Improvements in and relating to stopper construction for strainers for sinks and thelike
IPC: E03C1/262
Filed: 1951-11-28
Abstract: 693.343. Waste fittings for sinks &c. BRITISH THOMSON-HOUSTON CO., Ltd. Nov. 28, 1951 [Dec. 1, 1950], No. 27931/51. Class 26 A strainer for sinks and the like consists of a body portion 1 for fitting in the discharge opening of a sink 3 and provided with a valve seat 7 and means for fixing to .a waste conduit 9, a perforated crumb cup 12 suspended in the body portion by its rim 14 and carrying a sleeve 21 with a non-circular bore in which a major axis is substantially greater than a minor axis, and a stopper 17 carrying a stem 20 extending through the sleeve, the cylindrical lower part 27 of which has a diameter less than the minor axis of the sleeve and a length greater than that of the sleeve and the upper part of which has a cross-section similar to that of the sleeve. The stopper may be lowered on to the valve seating, or lifted by the head 22 until the upper part lies completely above the sleeve, rotated through 90 degrees and lowered into the position shown in Fig. 2 so that ledges 30 provided by flats cut at the ends of the major axis of the stem rest on the top of the minor axis of the sleeve and restrict rotation of the stem. The bore of the sleeve may be as shown in Fig. 3 in which arcuate portions 23 are joined by straight portions 24. An integral or removable strainer 11 may be fitted in the body portion.
Patent GB-227953-A (GB)
Title: Improvements in or relating to dynamo-electric machines
IPC: H02K3/493
Filed: 1923-11-06
Abstract: 227,953. Kuyser, J. A., and Metropolitan-Vickers Electrical Co., Ltd. Nov. 6, 1923. Armatures and field magnets, slot-wedges for. An asymmetrical arrangement of the magnetic centre lines of rotor or stator teeth is obtained by employing slot-wedges consisting of magnetic and nonmagnetic portions, and the asymmetry is balanced over the whole tooth system so as to minimize the wave-form disturbance which is due to the slots. Fig. 2 shows a four-pole rotor in which the slot-wedges 1 each comprise a magnetic portion 2 and a nonmagnetic portion 3, and the relative position of the portions is reversed at alternate poles. In a modification, Fig. 3, the portions 2, 3 of a wedge are arranged in one sense in a part of the slot and in the opposite sense in the remainder of the slot. The wedge may consist of three parts, two of which are magnetic and of dissimilar sizes.
Patent GB-979628-A (GB)
Title: Method and machine for extruding hollow articles
IPC: B21C25/04
Filed: 1963-07-15
Abstract: 979,628. Extruding hollow articles. SWISS ALUMINIUM Ltd. July 15, 1963 [July 19, 1962], No. 27960/63. Heading B5A. [Also in Division B3] A hollow article is made by extruding a hollow billet 19 between a die 12 and core 13 connected together by webs, the rear surface of the core being shielded to relieve pressure thereon by a mandrel 14. The latter may be secured by a rod 23 to a stationary support 24 and its detachable tip 16 fits within a recess 26, Fig. 1 (not shown), on the rear end of the core. Alternatively, the mandrel may be supported by the dummy ram 17 so as to be freely movable. The billet 19 may be of plastic or metal such as aluminium and is extruded by a ram 18 acting through the dummy ram 17. Various hollow sections are described, Figs. 2, 4, 5, 6 (not shown).
Patent GB-1442706-A (GB)
Title: Vuel injection pump assemblies for internal combustion  engines
IPC: F02D1/04
Filed: 1974-06-25
Abstract: 1442706 Speed governors L M MALYSHEV L J INDRUPSKY B P GUSEV and Y B PISMAN 25 June 1974 28034/74 Heading G3B [Also in Division F1] In a multi-cylinder fuel injection pump, e.g. a V-cylinder, wherein each cylinder now has a longitudinally extending fuel delivery control rack 3, the racks are displaceable by a two-armed lever 15 subjected to the opposing forces of a centrifugal governor 7-11 and a spring 17 tensioned by an operator controlled lever 18. The pivots 16, 19 of the levers 15, 18, respectively, extend perpendicular to a plane passing through the racks 3. Movement of the lever 15 causes longitudinal movement of one rack 3, a lever 4 being provided for transmitting the movement to the other rack. The governor includes a carrier 8 driven through gearing (5,6), 7 from the pump cam-shaft, weights 9 pivoted to the carrier, and an actuating member 11 displaceable by the weight 9 and arranged to pivot the lever 15. An adjustable itop 24 determines the maximum delivery position of the racks 3.
Patent GB-1397117-A (GB)
Title: Display devices utilizing liquid crystal light modulation with varying colours
IPC: G02F1/139
Filed: 1972-06-15
Abstract: 1397117 Illuminated theatrical appliances INTERNATIONAL LIQUID XTAL CO 15 June 1972 [15 July 1971] 28168/72 Heading A6M [Also in Divisions C4, F4, G5 and H4] Transparent electro-conductive coatings on each of two parallel glass plates are rubbed in mutually parallel directions so that the molecules of a nematic liquid crystal material, possessing positive dielectric anisotropy and disposed between the coatings, are aligned parallel to the rubbing direction, whereby the nematic material has a birefringenece which may be controlled by application of a potential difference between the coatings due to the tendency of the molecules to align with the electric field, and together with crossed or parallel polarisers acs as a variable wavelength optical filter. The variable filter may be used (a) to provide coloured illumination or spotlighting; (b) to control the colour of light transmitted to a ground glass or plastics display screen e.g. overprinted with advertising material; (c) to provide a variable colour display in response to an electric signal c.s. from a microphone; (d) in conjunction with convergent or divergent light (either before or aflter passing through the cell) to provide as a variable patterned colour display the interference pattern of a uniaxial material; (e) with a television receiver producing sequential RGB colour fields as monochrome image, to provide a colour display.
Patent GB-745587-A (GB)
Title: Improvements in or relating to the production of sealed envelopes for electronic tubes and like devices
IPC: H01J5/24
Filed: 1953-10-13
Abstract: 745,587. Discharge apparatus. COMPAGNIE GENERALE DE TELEGRAPHIE SANS FIL. Oct. 13, 1953 [Oct. 13, 1952], No. 28235/53. Class 39 (1). Envelope parts, at least one being of glass, are sealed together by surfacing the edges to be joined so that they fit closely, and subjecting the parts to pressure and localized heating of such degree and duration that the glass part reaches deformation temperature without softening sufficiently to deform; the operation is carried out in an outer evacuated chamber. In Fig. 1 this chamber is represented as a cylinder 1, within which an envelope part A is to be sealed to the base B. This base rests on a graphite ring 14 which can be heated by an induction coil 15. The envelope A is held by springs R 1 , R 2  in a support 19 at the end of a rod 8 which extends through the upper end of the chamber. At this end a head 3 comprises a mechanical arrangement for raising, lowering, and applying controlled pressure to the tube holder 19. The upper end of the rod 8 is threaded, and has screwed thereon two washers 5, 6, between which is a flexible diaphragm 7; the diaphragm is gripped between the inner surface of head 3 and an adjustable member 4, through which the rod 8 passes freely. The rod 8 and tube support 19 are forced downwards by atmospheric pressure acting on the diaphragm 7, the amount being adjustable by a hand-wheel screwed on the end of rod 8, and the maximum amount being determined by the position of washer 3. A coil 16 surrounding a refractory sleeve 17 serves to bring the interior of the chamber 1 to annealing and degassing temperature, after which the coil 15 is energized to heat the graphite ring 14, and then the two parts A and B are brought together under pressure, for sealing. Alternatively, the parts may be brought together before the ring 14 is heated. The faces to be sealed are ground to form complementary profiles, preferably spherical, and may also be polished to an optical accuracy. Fig. 2 (not shown) is a time-temperature chart of the cycle of operations.
Patent GB-1334510-A (GB)
Title: Boring bit
IPC: B23B51/04
Filed: 1972-06-16
Abstract: 1334510 Boring bits TATRA NARODNI PODNIK 16 June 1972 [22 June 1971] 28248/72 Heading B3C A boring bit comprises a hollow body 1, having a conical end 2, two openings 3, 4, for the discharge of cooling oil, recesses 7, 9, in the openings, in which cutter blades 10, 11, are clamped, one wall 6, 8, of each of the openings being plane and lying in the same plane as the cutting edges 12, 12<SP>1</SP>, 13, 13<SP>1</SP>, of the blades, and guide rollers 14, 15, having axes parallel to that of the bit. A cavity 5 in the bit is screw-threaded for connection to a guide rod.
Patent GB-1134569-A (GB)
Title: Improvements in black boards
Inventor: HARRISON ROBERT
IPC: B43L1/06
Filed: 1966-06-24
Abstract: 1,134,569. Blackboards. DURHAM COUNTY COUNCIL. 22 June, 1967 [24 June, 1966], No. 28368/66. Heading B6P. [Also in Divisions G2 and G5] A classroom board includes a central panel A with pivoting wings A<SP>1</SP> and A<SP>2</SP>. The central panel comprises a backing plate (a, Fig. 3) of plywood or hardboard with a white or light coloured surface, covered by a transparent sheet of glass or acrylics hinged to the upper horizontal edge thereof. The wings A<SP>1</SP> and A<SP>2</SP> have black non-reflecting chalk board surfaces on both sides. The central panel may be used as a repeatedly useable writing surface with chinagraph pencils. Maps, plans and ruled sheets may be inserted between the backing plate and the transparent cover sheet. The board is fixed to a frame (a<SP>3</SP>) which is pivoted at its lower horizontal edge to a beam (a<SP>4</SP>) secured to a wall. Normally the frame (a<SP>3</SP>) is inclined rearwardly (Fig. 3) but if the central panel is to be used as a projection screen, the frame may be inclined forwardly and retained in this position by pins a<SP>6</SP> at the upper horizontal edge of the frame, co-operating with a slotted bracket a<SP>7</SP> fixed to the wall. Alternatively the frame may be moved by a worm and worm wheel mechanism. Part of the weight of the board is supported by telescopic legs. C. The wings A<SP>1</SP> and A<SP>2</SP> are provided with chalk rails a<SP>8</SP>. The top of the board may be formed as a receptacle for instruments with a recess to give access to an adjusting screw on the drafting instrument B.
Patent GB-503032-A (GB)
Title: Improvements connected with combined liquid and gas control valves
IPC: F23N1/08
Filed: 1937-10-19
Abstract: 503,032. Combined liquid and gas control-valves. PRESTON & THOMAS, Ltd., and CRUISE, A. J. Oct. 19, 1937, No. 28386. [Class 135] A combined valve for controlling separate streams of liquid and gas comprises a liquid valve having a spindle and a handle 15 on the underside of which is a cam 16 which engages the spindle of a spring-loaded gas valve 10. Rotation of handle 15 both opens screw-down liquid valve 4 and causes the cam to depress spindle 17 of the poppet gas valve 10. Adjustable restrictors in the form of screws may be provided in the liquid and gas inlets.