baber/WOPTO huggingface dataset:
Patent GB-1385504-A (GB)
Title: Method of fabricating heteroepitaxial devices
IPC: H01F10/24
Filed: 1972-04-12
Abstract: 1385504 Garnet compositions WESTERN ELECTRIC CO Inc 12 April 1972 [12 April 1971] 16806/72 Heading ClJ A heteroepitaxial layer of a magnetic garnet composition, the crystallographic dodecahedral site of which is occupied by at least two different ions each of which is present in an amount of at least 10 atom per cent based on the total number of ions occupying dodecahedral sites, is grown on a substrate also of garnet composition of lattice dimensions compatible to those of the layer but exhibiting a low value of magnetization relative to the layer, the layer having an easy direction of magnetization substantially normal to its surface, the layer being annealed in an atmosphere within a temperature range and for a period adequate to reduce the value of H Ku  for the layer by an amount of at least 10% from its initial value, where H Ku  is defined as the applied field required to rotate the magnetization from the easy direction normal to the layer surface to a direction coinciding with the medium axis perpendicular to the easy direction. Preferably annealing is effected in an oxidizing atmosphere between 1200 and 1350 C. Mixed rare-earth garnets are preferred materials for growing the films and Y 3 Fe 5 O 12  is cited as typical. However Gd, Tb, Eu, Er, Nd provide other examples of garnet materials. The subsubstrates may have similar structure and Nd 3 Ga 5 O 12  and Gd 3 Ga 5 O 12  are specified. The Ga non-magnetic component may be replaced by Se or Al. Examples describe the fabrication of magnetic domain bubble devices and their use in circuitry switchgear and memory devices.
Patent GB-368166-A (GB)
Title: Improvements in valves for internal combustion engines
IPC: F01L3/00
Filed: 1931-06-10
Abstract: 368,166. Valves and valve gear. FORD MOTOR CO., Ltd., 88, Regent Street, London.-(Assignees of Ford, H.; Dearborn, Michigan, U.S.A.) June 10, 1931, No. 16872. Convention date, July 10, 1930. [Class 7 (vi).] The valve head 16 is formed with a short stem which is welded at 18 to a hollow stem 19, this being further welded at 21 to an enlarged and preferably hollow member 20 acting as a guide and tappet. The tappet and valve are thus made integral, and the whole structure is guided in two bearings 25, 26. The latter bearing is formed in two halves which are inserted in a bore 24 after the valve is in place. The valve spring bears against the bearing 26 and against a washer 23 resting on the member 20.
Patent GB-1353167-A (GB)
Title: Well formation testing methods and apparatus
IPC: E21B49/08
Filed: 1971-05-25
Abstract: 1353167 Wells &c SCHLUMBERGER TECHNOLOGY CORP 25 May 1971 [1 June 1970 (2)] 16906/71 Heading E1F In a formation tester 27 (Figs. 4A, 4B) comprising a mandrel 90 reciprocable within a housing 91, a passage for formation fluid extending through the tester with at least part of the passage in the mandrel, and valve means 112, 113 on the mandrel for opening and closing the passage, the mandrel has a piston 126 subjected on the upper face to the pressure of the formation fluid in the passage and on the lower face to the pressure of formation fluid in the annulus about the tester so that changes in formation pressure will not effect the apparent weight of the tester. The tester has a delay section 86 and an indexing section 85 in which a pin 93 on a rotary sleeve 92 engages a cam slot 94 in the mandrel. The mandrel is biassed upwardly by annulus pressure acting on a piston 141 forming a wall of an atmospheric chamber 144. A tool string is lowered into a well 11 and comprises a pipe string 16, supported from a vessel 10, control valves 19 in the string 16 and having a support shoulder 20 adapted to seat on a wellhead 12, a safety valve and slip joint 22, a slip joint 23, drill collars 24, reversing valves 25, 26, the tester 27, a slip joint 29, a packer 28, perforated anchor pipe 30, and pressure recorders on a carrier 31. During lowering of the tool string the tester mandrel is extended and the passage is closed. When the shoulder engages the wellhead, the slip joint in the tool 22 is extended and the slip joints 23, 29 are closed so that the weight of the collars is imposed on the tester and packer. The packer sets before the tester passage is opened because of the retarding action of the section 86. When the mandrel reaches the end of its downward travel the passage is open, the valve means 112, 113 being disengaged from seats 114, 115. Fluid from the formation below the packer then flows up the tool string to the surface. The passage is left open long enough to permit drawdown of pressure and then closed sufficiently long to record pressure build-up. The passage is closed in to isolate a formation fluid sample in a part 116 of the passage by raising and lowering the tool string. During raising of the tool string the rig weight indicator shows a constant reading as joint 23 extends another constant reading as the mandrel is raised to close the passage, and a further constant reading when the slip joint 29 extends. As the tool string is lowered the shoulder 20 seats on the wellhead and joints 23, 29 close so that the weight of the collars is imposed on the tester. The resultant descent of the mandrel is stopped by lugs 98 on the mandrel engaging lugs 97 on the sleeve to prevent the passage opening. After the pressure has built-up the tool string is removed with the sample. If the pipe string should sever below the wellhead, the lower part of the pipe will drop and cause the slip section of the tool 22 to close and in so doing close the safety valve to kill the well.
Patent GB-1456427-A (GB)
Title: Manufacture of concentrated aqueous -meth- acrylamide solutions by catalytic addition of water to -meth- acrylonitrile
IPC: C07C213/06
Filed: 1974-04-18
Abstract: 1456427 Acrylamide and methacrylamide BASF AG 18 April 1974 [19 April 1973] 16921/74 Heading C2C Aqueous solutions of (meth)acrylamide containing 30-50% of (meth)acrylamide are made by reacting (meth)acrylonitrile with water in an aqueous solution of (meth)acrylonitrile and (meth)acrylamide in contact with a heterogeneous catalyst at an initial weight ratio of amide to nitrile of from 1 : 1 to 1 : 7. Preferably the aqueous-solution containing an initial weight ratio of (meth)acrylonitrile to water of from 1 : 10 to 1 : 1 is passed over a fixed bed of a reduced copper oxide, Raney copper or reduced copper compound catalyst and a small stream of the product is recycled. After the reaction, unreacted (meth)acrylonitrile may be removed by distillation in the presence of oxygen or an oxygen-containing gas and at a pH of 5-8. Then the (meth)acrylamide solution may be treated with an acid ion-exchanger to remove copper ions.
Patent GB-861035-A (GB)
Title: An improved method of dyeing textile material
IPC: D06B17/04
Filed: 1959-05-19
Abstract: In a method of dyeing textile material e.g. fabrics and yarns in which the dye is fixed at temperatures above 100 DEG C., the material is impregnated with dye solution, excess of which is <PICT:0861035/IV(c)/1> squeezed off the material, and preferably after preheating the material is wound up on a roll contained in a closable chamber from which roll it is subsequently unrolled to be rerolled on to a second roll placed within the chamber while simultaneously being heated to a predetermined dye fixation temperature, whereupon the second roll is kept in the chamber at the predetermined temperature and at the corresponding superatmospheric pressure during a period of time sufficient to obtain a desired dye equilibrium.  The heating of the textile material at least within the closed chamber is carried out by means of steam in such a way that the moisture content of the material is permitted to rise up to at most 92% calculated on the moisture content at 20 DEG C. and a pressure power of zero.  The latter is obtained by calculating moisture contents at 1, 2 and 3 Kg./sq. cm. and extrapolating back to zero and corresponds to the moisture content of an impregnated fabric permitted to drip off without simultaneous evaporation of liquid from the fabric at atmospheric pressure. As shown apparatus suitable for the above dyeing method comprises padding vat 6 through which web 2 is caused to pass by roller 5. Pressure rollers 7, 8 cause excess dye solution to be removed from web 2 before it passes between infra-red lamps 12 into chamber 14 containing rolls 15, 17.  Examples describe the dyeing of cotton, polyester and polyacrylic fabrics.  Swedish Specification 161,516 is referred to.
Patent GB-947868-A (GB)
Title: Clamping connection for mine support arches
IPC: E21D11/22
Filed: 1960-05-13
Abstract: 947,868. Mine arch supports. K. T. JASPER. May 13, 1960 [May 13, 1959; March 28, 1960], No. 16976/60. Heading E1E. A clamp, Fig. 1, for mine support arches of trough-shaped sections each having a round bottom flange 3 and rounded half flanges 4 comprises a ring-like device 18 formed with opposed tightening surfaces 19, 21 and at least one hammering lug 24. In a modification, see Figs. 3 and 4 (not shown), the clamp is provided with an inverted V-shaped section adjacent the flanges 4 to form opposed clamping surfaces again, the clamp, Fig. 5, may be provided with clamping surfaces 31, 32, 33 and have a clip 37 welded thereto for bridging the trough opening. The clamp is used in association with wedges such as 35.
Patent GB-1186564-A (GB)
Title: New Dehydrated Instant Potato Produce produced from Potato Flakes and Potato Granules and process for producing same
IPC: A23L19/15
Filed: 1967-04-13
Abstract: 1,186,564. Dried potato products. AMERICAN POTATO CO. 13 April, 1967 [14 April, 1966], No. 17016/67. Heading A2D. A process for the production of a dried instant mashed potato product comprises forming a moist mixture of potato flakes and granules, conditioning the mixture, remixing the mixture and drying. The potato flakes may be wetted and conditioned before being mixed with dry granules or dry granules may be mixed with dry flakes and the dry mixture is then wetted. In the conditioning step moisture equilibration and/or retrogradation occurs. The potato flakes may have been prepared by the use of sulphites, antioxidants or emulsifiers. The potato product may have a bulk density of 35-40 lbs./c. ft. and may form a stiff mash when mixed with cold or boiling water.
Patent GB-826116-A (GB)
Title: Improvements in or relating to motor vehicle air registers
IPC: B60H1/34
Filed: 1958-05-28
Abstract: 826,116. Ventilating. FORD MOTOR CO. Ltd. May 28, 1958 [May 28, 1957], No. 17026/58. Class 137 An air register, particularly for mounting on the inside edge of the front door of a motor vehicle to discharge cooled or heated air into the rear seat passenger compartment, comprises a universal action lever 74 for the independent, or simultaneous, actuation of a front set of vertical louvres 34 and a rear set of horizontal louvres 41. The register comprises a retainer 24 secured to a front frame 14 having an upper conical recess 21 for the lever 74, and a lower rectangular opening 14 the walls 17 and 16 (not shown) of which have arcuate holes 18, 19 to receive bearing extensions or the louvres 34, 41 which are held in position by pre-stressed bent leaf springs 35 and 44 (not shown). The lever 74 has a ball-like portion 76 located in a conical aperture 22 in the recess 21 and in arcuate mounting legs 58 and 71 (not shown) of front and rear yokes 57, 66 which are slotted at 61 and 67 to receive an extension 78 on the lever 74. An arm 62 depends from the lowermost leg 58 and has a pin 63 engaging a slot 64 in a guide 39 which extends through an opening 31 in a depending web 32 with an inclined rear face 33, and which is secured to the upper parts of the front louvres 34. A link 69 depends from one of the legs 71 and is pivotally connected by a rod 72 to the lower leg 73 of a plate 48 pivotally connected to anchors 46 bent down from the louvres 41. The register is closed when the uppermost louvre 41 strikes the face 33.
Patent GB-635922-A (GB)
Title: Combined floor polisher and vacuum cleaner
IPC: A47L11/206
Filed: 1947-06-30
Abstract: 635,922. Floor cleaning machines. SELINGER, J. June 30, 1947, No. 17215. [Class 138 (i)] [Also in Group XXVIII] A combined floor polisher and vacuum cleaner (see Group XXVIII) comprises a housing 5, Fig. 2, partitioned into a brush chamber 8 and a fan chamber 7 having a dustladen air inlet duct 11 and an outlet 10 leading to a dust bag connection. Brushes 23, 24, driven directly by the fan shaft 19 are mounted on bars 25, 27 pivoted at 30, 31, Fig. 3, and are disengaged from the shaft 19 by angular displacement of a bar 33 freely pivoted about the shaft 19 and to which the bars 25, 27 are connected by rods 49. The bar 33 is biassed to the shaft engaging position by a spring 46 and is manually displaced by a rod 35 having a bent end fitting in an eccentric disc 39 rocked by a lever 41. When the brushes are not in use the apparatus may rest on skids 54.
Patent GB-748709-A (GB)
Title: Improvements in or relating to a method of continuously casting metals by means of cooled throughflow moulds
IPC: B22D11/103
Filed: 1953-06-22
Abstract: 748,709. Continuous-casting machines. JUNGHANS, S. June 22, 1953, No. 17286/53. Class 83 (1). In continuous casting, the casting jet is introduced into the liquid casting-head with a constant change of the point to which it is directed. The metal is fed through a spout 9 of a vessel 8 mounted for rotation on bearings 4, the drive for the vessel being preferably derived from the drive of the casting withdrawal mechanism. The vessel may also have outlets in the bottom to feed the metal to the central and intermediate zones of the casting- head. In a modification an outlet tube from the vessel extends at a small angle to the plane of the casting level so that violent disruption of the oxide layer on the liquid casting-head is avoided. When casting in moulds of elongated cross-section the direction of movement of the jet may be a straight line, or as shown in Fig. 6.
Patent GB-764319-A (GB)
Title: Manufacture of compounds of the steroid series with oxygen in 11-position
IPC: C07J1/00
Filed: 1951-12-20
Abstract: The invention comprises D 8 : 9 - 11 - oxo - steroids of the cholestane, ergostane and androstane series, and the preparation of D 8 : 7-11 -oxo-steroids by reacting a D 7 ; 8-9 : 11-oxidosteroid with boron trifluoride, ferric chloride or zinc chloride.  The starting materials may be substituted in the nucleus or the side chain and have any suitable configuration.  The reaction may be effected in an organic solvent, e.g. benzene.  Examples disclose the preparation of D 8 : 9, 22 : 23 - 11 - oxo - 3b  - acetoxyergo - stadiene, D 8 : 9, - 11 - oxo - 3b ,17b  - diacetoxy - androstene and D 8 : 9-3b -acetoxy-11-oxocholestene.
Patent GB-821218-A (GB)
Title: Motor fuel
IPC: C10L1/18
Filed: 1958-05-30
Abstract: An anti-stalling gasoline composition contains less than 2% by volume of a mixture of a minor proportion of an N,N-dialkyl formamide and a major proportion of an aliphatic alcohol having from 1 to 3 carbon atoms per molecule.  The gasoline can be aviation gasoline of ASTM end point between 250 DEG  and 350 DEG  F. or motor gasoline of ASTM end point between 350 DEG  and 450 DEG  F. Specified formamides are N,N-dimethyl-, -diethyl-, -di-n-propyl-, -di-isopropyl-and N-methyl-N-ethyl-formamides.  Specified alcohols are methyl, ethyl, n-propyl, allyl and isopropyl alcohols.  The volume ratio of alcohol to formamide is between 10 to 1 and 35 to 1, and they form proportions by volume of gasoline of from 0.4 to 1.8, and from 0.01 to 0.15, respectively.
Patent GB-545690-A (GB)
Title: A system for changing the frequency of electric oscillations
IPC: H03C3/04
Filed: 1940-12-05
Abstract: 545,690. Valve modulating and generating circuits. MARCONI'S WIRELESS TELEGRAPH CO., Ltd. Dec. 5, 1940, No. 17330. Convention date, Dec. 6, 1939. [Class 40 (v)] A system for changing the frequency of an electric oscillation comprises a line in which travelling waves are set up from a source and to spaced points on which valves are connected and have their impedances cyclically varied by out of phase voltages from a second source so that the valves successively feed the output at a frequency equal to the sum or difference of the sources. Fig. 2, shows a line comprising a pair of co-axial conductors with valves having a common output spaced #/4 apart. The modulating potentials frequency modulated on a carrier-wave as by a thermionic reactance in parallel with an oscillator circuit, Fig. 5 (not shown) are applied to terminals X, X and produce two-phase energy in the stator of phase shifter 7. Phase displaced voltages are applied to the valve pairs from the rotor through chokes 6 to render the valve pairs cyclically operative. Blocking condensers BC prevent the line short-circuiting the modulating voltages. In this way the frequency of the master oscillator fed to the output is increased or decreased. Instead of twophase operation polyphase operation may be employed. The valves are neutralized by condensers NC and with an even number of elements their effects on the line cancel out and do not cause reflections or standing waves. Saturation excitation is preferably used so that the output amplitude is constant. In a modification, Fig. 3, single valve stages are used and the line instead of being terminated by a matching impedance Z0 is backcoupled to the oscillator output circuit 45. In this arrangement the capacities imposed on the line by the valves are tuned out by reactances TR and the oscillator 41 is stabilized by a line 42. The line instead of being back-coupled may be terminated by a matching impedance, Fig. 4 (not shown). Fig. 6 shows a relay station in which a receiver 80 and amplifier 82 feed the input to a converter 90 as previously described and in which frequency from a local source 95 is added before retransmission. Specification 413,647 is referred to.
Patent GB-182315-A (GB)
Title: Improvements in and relating to electric switches
IPC: H01H1/32
Filed: 1921-06-24
Abstract: 182,315. British Thomson - Houston Co., Ltd., (General Electric Co.). June 24, 1921. Electromagnetic switches; contacts; magnetic blow-outs.-A self-aligning contact 15 is provided with a U-shaped member 20 engaging the pin 19 of a hinge support 16, Fig. 3, and with a stop 17 adapted to engage a bar 35 on the support in the open position of the switch, a spring 18 being mounted between the pin 19 and the stop. The other main contact 14 of the switch is connected to the pivoted armature 12 of an electromagnet 11, which is energized to close the switch. When the switch is closed the contact 15 first tilts about the spring 18 to align itself with the contact 14, and is then moved in the line of movement of the contact 14 to place the spring under compression. Auxiliary arcing contacts 26, 31, with a blow-out coil 32 and arc shoot 34 are provided.
Patent GB-1497692-A (GB)
Title: Low-viscous stable polymer dispersions and polyurethanes prepared therefrom
IPC: C08G65/00
Filed: 1975-04-28
Abstract: 1497692 Blends of polyhydroxy polymers; polyurethanes BASF WYANDOTTE CORP 28 April 1975 [29 April 1974] 17486/75 Headings C3P and C3R A polymer dispersion for use in making a polyurethane comprises (a) 45-95% by wt. of a polyol having an equivalent weight of 500-10,000 and (b) 55-5% of a finely-divided solid copolymer of (1) a major amount of an unsaturated monomer and (2) a minor amount of an unsaturated monomer having an equivalent weight of 500-10,000 and 1-8 hydroxy groups per molecule. In examples (a) is a polyalkylene polyether polyol and (b) is a copolymer of (a) styrene styrene/acrylonitrile, styrene/ethyl hexyl acrylate or methyl methacrylate/vinylidene chloride and (b) the reaction product of maleic anhydride and an alkoxylated glycerol, trimethylol propane or propylene glycol. The dispersions are made by blending a dispersion of the solid polymer in an organic solvent with the polyol followed by stripping off the solvent. Polyurethanes, are prepared conventionally from the blends by reaction with polyisocyanate together with adjustments as desired such as other hydroxy compounds, chain extending agents, catalysts, surface-active agents, stabilizers, blowing agents, fillers and pigments.
Patent GB-792919-A (GB)
Title: A process for extracting light oil from carbonisation gas
IPC: C10K1/18
Filed: 1955-06-17
Abstract: 792,919. Extracting light oils from fuel gases. LANDA, S. June 17, 1955 [June 30, 1954], No. 17517/55. Class 55 (2). Light oils are extracted from coal gas by washing the gas with an oil produced by the hydrogenization of tar and/or coal and which is free from phenols. The phenols in the starting material are first removed by hydrogenization in the presence of compounds of elements from the 6th group of the periodical system as catalysts, particularly in the presence of sulphides such as tungsten disulphide. Used wash oil may be regenerated by a similar treatment.
Patent GB-1137644-A (GB)
Title: Improvements in and relating to milking machines
Inventor: LEWIS DONALD
IPC: A01J5/04
Filed: 1966-04-21
Abstract: 1,137,644. Milking machines. WEYCROFT MACFORD Ltd. 19 April, 1967 [21 April, 1966], No. 17565/66. Heading A1M. Milking apparatus comprises a milk receiving container 11 which is coupled to a vacuum line 23 when receiving milk from the teat cups and to a pressure line 21 under a greater than atmospheric pressure, to effect discharge of milk from the container to milk transport line 19. The vacuum line 23 is connected to an exhauster 24 communicating with the atmosphere through a filter 45. The pressure line 21 is connected to an oil-less compressor 22 and is provided with two-way valves 41, 42 connectable with the upper and lower ends respectively of a hot water cylinder 43. The milk transport line 19 includes a two-way valve whereby the milk can be delivered to churns 31 via a cooling apparatus 30 or alternatively liquid in line 19 can be delivered to a number of outlets located over a sink. For the purpose of washing the apparatus the teat cups are removed from conduit 15 and are connected to the outlets in line 19 located over the sink, line 19 being put into communication with the outlets. Valves 41, 42 are operated so that increased pressure acts on cylinder 43 to force hot water into line 21, through jar 11, along line 19 and out through the teat cups. By putting line 19 into communication therewith, the cooling apparatus may also be washed. A venturi device coupled to a source of dilute nitric acid or a detergent may be located between the outlet of cylinder 43 and valve 42. Container 11 may be in the form of a calibrated glass jar.
Patent GB-255857-A (GB)
Title: Improvements in the gasification of fuel
IPC: C10B49/16
Filed: 1926-07-13
Abstract: 255,857. Szikla, G., and Rozinek, A. July 25, 1925, [Convention date]. Charging.-A fuel feeding device, for a gas producer comprises an open bunker 17 fed with fresh coal dust through a channel 23 and with incandescent coal dust through a conduit 5<c>, the mixture falling on to a rotarv disc 18 from which an adjustable scraper 22 discharges a portion which falls into a channel 3 leading to the gasifying chamber.