baber/WOPTO huggingface dataset:
Patent GB-1274497-A (GB)
Title: An internal combustion engine having a fuel injection system
Inventor: NAKASHIMA SEIICHI
IPC: F02B27/00
Filed: 1969-08-12
Abstract: 1,274,497. I. C. engine induction systems. NISSAN MOTOR CO. Ltd. Aug. 12, 1969, No. 40234/69. Heading F1B. Air drawn through a filter 16 and controlled by a throttle valve 12 is fed to respective cylinder intake manifold branches 20 to 23 of equal length from a manifold chamber 19 divided by a partition into two sub-chambers 25 and 26 of substantially equal volume. Cylinders which fire consecutively communicate with different sub-chambers. A fuel injection pump 11 supplies injectors 13 immediately upstream of the intake valves 14. The throttle valve may be mounted in a passage communicating with the partitioned chamber intermediate its ends, Fig. 4 (not shown).
Patent GB-1319080-A (GB)
Title: Television picture tube
IPC: H01J29/86
Filed: 1970-08-21
Abstract: 1319080 Cathode-ray display tubes OWENSILLINOIS Inc 21 Aug 1970 [8 June 1970] 40312/70 Heading H1D A wide angle television display tube comprising a rectangular faceplate 16, a funnel 11, and a neck 15, is characterized in that the funnel has substantially planar sidewalls 13 at the opposed ends of the short axis, these sidewalls being generally triangular and connecting smoothly with the remaining curved portions of the funnel. Compared with a known profile shown by the chain line in Fig. 2, the flattened shape alters the stress distribution and generally lowers the stresses; in particular, high tensile stresses in the long axis and high compressive stresses in the short axis are reduced by a factor of about 6 near the yoke area 12.
Patent GB-1205836-A (GB)
Title: Preparation of siloxanes in emulsion
IPC: C08G77/28
Filed: 1968-08-23
Abstract: 1,205,836. Thioether polysiloxanes and grafted polysiloxanes. DOW CORNING CORP. 23 Aug., 1968 [25 Sept., 1967], No. 40447/68. Headings C3G and C3T. A polysiloxane containing units wherein R and Q are derived as below from a non-polymerizable and a polymerizable olefinically unsaturated compound respectively, A is an alkylene or arylene radical, R<SP>1</SP> is a methyl or phenyl radical and n is 0, 1 or 2, is prepared by emulsifying a polysiloxane containing units adding a non-polymerizable or polymerizable olefinically unsaturated compound as appropriate to the emulsion, and causing the formation of the required product using a free radical catalyst. The remaining units of the polysiloxane may be of the type R<SP>11</SP>SiO 3/2 , R<SP>11</SP> 2 SiO and/or R<SP>11</SP>SiO ¢  wherein R<SP>11</SP> is a hydrocarbon or halohydrocarbon radical, with up to 5 wt. per cent of SiO 4/2 . Suitable non-polymerizable olefins are ethylene, propylene, pentene-2, cyclobutene, cyclohexene, cyclohexylethylene and 3 - methylhexene - 1. Suitable polymerizable olefins are butadiene, isoprene, acrylonitrile, chloroprene, styrene, methyl methacrylate, ethyl acrylate and vinyl acetate. In examples ammonium persulphate is used to catalyse the reactions of an emulsion of a 50/50 MeSiO 3/2 /HS(CH 2 ) 3 SiO 3/2  polysiloxane with octene - 1 and of a 95/5 MeSiO 3/2 /HS(CH 2 ) 3 - SiO 3/2 polysiloxane with styrene, methyl methacrylate, ethyl acrylate and a mixture of the latter two. Further polysiloxanes specified (in Example 6) are (A) 100% HS(CH 2 ) 2 - SiO 3/2 , (B) 100% HS(CH 2 ) 4 SiO 3/2 , (C) 25/75 HS.CH 2 .CH(CH 3 )CH 2 SiO 3/2 /C 6 H 5 SiO 3/2 , (D) 10/90 HS(CH 2 ) 12 SiO 3/2 /CH 3 SiO 3/2 , (E) 15/10/75 HS(CH 2 ) 3 SiO 3/2 /CF 3 (CH 2 ) 2 SiO 3/2 /CH 3 SiO 3/2 , (F) 15/85 HS(CH 2 ) 3 SiO 312 /(CH 3 ) 2 SiO, (G) 5/2/3/90 HS(CH 2  ) 3 SiO 3/2 /SiO 4/2 /(CH 3 ) 3 SiO 1/2 /C 2 H 5 SiO 3/2  (H) 5/5/90 HS(CH 2 ) 2 SiO 3/2 /Cl(CH 2 ) 3 SiO 3/2 / CH 3 (C 2 H 5 )SiO, (I) 75/5/20 HS(CH 2 ) 6 SiO 3/2 / Cl 2 C 6 H 3 SiO 3/2 /CH 3 SiO 3/2 , (J) 100% HSC 6 H 4 SiO 3/2 , (K) 5/95 HS-C 6 H 4 -C 6 H 4 SiO 3/2 / CH 3 SiO 3/2 , (L) 5/95 HS(CH 2 ) 3 Si(CH 3 ) 2 - O 1/2 /CH 3 SiO 3/2 , (M) 5/95 HS(CH 2 ) 3 Si(C 6 H 5 )O/ CH 3 SiO 3/2 .
Patent GB-903883-A (GB)
Title: Method and apparatus for polishing glass
IPC: B24B7/24
Filed: 1960-11-25
Abstract: 903,883. Polishing glass. PITTSBURG PLATE GLASS CO. Nov. 25, 1960 [Nov. 25, 1959], No. 40555/60. Class 60. A method of polishing glass G having opposing planar surfaces comprises moving the glass along a linear path while supported on its lower surface and applying a polishing action to the upper surface, the polishing action being such as to vary in effect transversely of the direction of glass movement and the supporting force exerted on the lower surface of the glass being varied transversely of the direction of glass movement to cause a corresponding variation in the polishing force exerted on the upper surface to thereby obtain substantially uniform polishing action across the upper surface. The upper surface of the glass is polished by blocks 39 of fibrous material, such as felt, freelyrotatably mounted on the ends of shafts 41 in spiders 21, 23 which are mounted on bridges 11 and driven by gearing 29, 31 from prime movers 37. Spider 21 has four blocks while the other spider has five blocks and the spiders alternate on adjacent bridges. The glass is traversed below the spiders on a table 13 driven by gearing 15, 17. In order to overcome the effect of bands where the polishing action is poorest as a result of the varying polishing action on the upper surface of the glass, means are provided to apply an increased supporting force in the area of the bands, which means may comprise a plurality of shims 42 of paper, foil or film arranged in inverted pyramid form and adhered to each other and to the table 13 and a cloth 44 to provide convex regions on the table in the areas of the bands. In other embodiments, the table 13 may be contoured with the convex regions or shaped with laminated glass fibre, contoured felt or cloth, sprayed metal or plastic shims. The entire table may be covered with a contoured plate, sheet or the like.
Patent GB-1085700-A (GB)
Title: Fuel assembly for nuclear reactors
Inventor: COSTES DIDIER
IPC: G21C9/016
Filed: 1966-09-12
Abstract: 1,085,700. Fuel elements. COMMISSARIAT A L'ENERGIE ATOMIQUE. Sept. 12, 1966 [Oct. 8, 1965], No. 40721/66. Heading G6C. A fuel assembly for a liquid metal - cooled fast reactor comprises a cluster of pins 26 of canned fissile material disposed between upper and lower clusters of pins 16, 28 of canned fertile material in a vertical tubular sleeve 2 having a bottom opening 12, the cross-sectional area of which is substantially the same as that of the sleeve, the bottom cluster 28 being adapted to slide as a whole out of the sleeve through the opening 12 and being suspended from a portion only of the pins 24 of the central cluster 26. The pins 24 are clad in stainless steel and each provided with a helical spacing pin. In those pins which support the bottom cluster 28, the fuel is rigid, e.g. a sintered cement or metal alloy, and bonded to the can whilst the other pins contain ceramic fuel which is not bonded to the can. The tubular sleeve 2 is of hexagonal cross-section and fabricated from stainless steel. The upper extremity of the sleeve 2 is closed by a plug 4 provided with inlets 6 for the admission of the coolant, e.g. liquid sodium. One face of the plug 4 is applied against the bottom wall 8 of a box 9 for the supply of pressurized coolant. The reactor core is formed by a plurality of fuel assemblies of the above type surrounded by further assemblies containing fertile material only. The lower ends 12 of the sleeves 2 open into the bottom space 14 of the reactor in which the heated coolant is collected after discharge from the core. The bottom portion of the space 14 (Fig. 3, not shown), comprises a structure (36) for receiving materials which may drop from the core in the event of an accident, especially melt-out, and is provided with partitions for preventing the formation of critical concentrations. The cavities (38) between the partitions are connected by ducts (40) of small cross-section with a bottom space (42) which communicates with the collector space 14 in order to assist natural convection and cool the relatively spongy mass formed by the resolidified materials. Reduction in coolant flow or a power excursion results in vapour blockage in the central cluster 26 followed by a sharp temperature rise in the fuel. This obstruction propagates rapidly to the bottom cluster 28, the pressure gradient in the stagnant vapour combining with the action of gravity to move the vapour blockage downwards. The pins from which the bottom cluster is suspended melt before the others and the bottom cluster falls into the collector space, resulting in a drop in reactivity. Should a generalized accident condition arise, the resulting removal of a number of clusters effects a shut-down of the reactor. The suspension of the bottom cluster from fuel pins which are of high coefficient of thermal expansion enhances the negative temperature coefficient of the reactor.
Patent GB-918836-A (GB)
Title: An improved wheel press for railway wheel and axle assemblies
IPC: B23P19/02
Filed: 1961-11-15
Abstract: 918,836. Assembling force fits. PRETORIA MACHINERY WORKS (PROPRIETARY) Ltd. Nov. 15, 1961 [Nov. 18, 1960], No. 40806/61. Class 83 (4). [Also in Group XXIII] An improved wheel press for railway-wheel and axle assemblies includes two opposing hydraulic ram presses secured together or anchored in horizontally spaced relationship with respect to one another; a rigidly anchored anvil block assembly located between the presses and means to enable a wheel and axle assembly to be operatively positioned with respect to such anvil block assembly and the two rams of the presses and subsequently removed therefrom after completion of a pressing operation. The press is partly sunk in a pit 4 below floor level 5 and the anvil block assembly 6 is mounted on and anchored to horizontal bars 3. Provided on each end of the anvil block assembly is a slotted anvil block 7 the outer faces of which are arranged to provide stop means for the wheel bosses. Coacting with the axle blocks 7 are two pivotally mounted axle carrier members 9 and 10 actuated by hydraulic cylinders 19. The two parts forming the carrier member 9 are fixed closer together than the two parts forming the carrier member 10 to enable both their hooked portions to be accommodated one within the other so as to enable an axle to be lowered by one and thereafter engaged and raised by the other. Thus an axle assembly can be fed to the machine from one side and discharged from the other. The ram 21 of each press has a central bore 22 large enough to pass freely over the axle shaft so as to engage a wheel boss or an interposed collar. For pressing an axle free of the bore of a wheel a pivotally mounted anvil block 23, Fig. 3, is rotated until it covers the bore 22 of the ram. The axle shaft with two wheels loosely hung one on each end is rolled along rails 29 or 29a and on to the carrier members 10 or 9 respectively which are then lowered into the anvil blocks 7 whereupon the rams are operated to press the wheels on to the shaft. In a modification, Fig. 5, the wheel assembly is raised and lowered into position in the anvil blocks 7 by means of a cross bar 34 vertically reciprocable in guide members 35 by an hydraulic jack 33 located between the anvil blocks.
Patent GB-1223287-A (GB)
Title: Carboxylic acid preparation
Inventor: DICKAKIAN GHAZI MOURAD
IPC: C07C51/31
Filed: 1968-08-30
Abstract: 1,223,287. Carboxylic acids. ESSO RESEARCH & ENG. CO. 15 Aug., 1969 [30 Aug., 1968], No. 41535/68. Heading C2C. Carboxylic acids are prepared by the catalytic nitric acid oxidation of substituted hydrocarbons where R 1  and R 2  are methyl or hydrogen, n 1  and n 2  each represent zero or an integer 1-40, provided n 1  + n 2  is more than 3, and X and Y are polar groups such as hydroxy, ether, ester or other polar groups such as epoxide or acetal rings. The catalysts comprise vanadium metal or compounds, e.g. ammonium vanadate, vanadium oxides or copper ammonium vanadate, and a co-catalyst such as copper acetate, carbonate, a nitrate may be present. Strong nitric acid in aqueous solution (30-70 wt. per cent) is used and the reaction may be in two stages, a cleavage followed by oxidation, and polar solvents may be present. The nitric acid may be regenerated if desired in situ by the addition of oxygen. Examples describe the preparation of n-tetradodecanoic acid from a (C 11 -C 14 ) 1,2-epoxide, mixed linear decanoic, undecanoic, dodecanoic and tridecanoic acids from alkyl (C 11 -C 14 )-2-bydroxy-1-acetate, and n-tetradecanoic acid from pure n-tetradecane- 1,2 - epoxide and n - tetradecane - 2 - hydroxy- 1-nitrate.
Patent GB-926970-A (GB)
Title: Navigation instrument for dirigible craft
IPC: G01C21/00
Filed: 1960-12-02
Abstract: 926,970. Radar. SPERRY RAND CORPORATION. Dec. 2, 1960 [Dec. 16, 1959], No. 41561/60. Class 40 (7). [Also in Group XXXIII] A navigation aid instrument wherein the deviation of a craft from a preselected course is indicated by the displacement between a reference index 12, 20, in. dicating the craft heading, and a displaceable course deviation index 30, has an index 21 displaceable relative to index 12, 20 to indicate the relationship of the ground track of the craft and its heading. Dots 46 on a mask 24 indicate the magnitude of the course deviation, the mask having a selected course index 25; a pointer 51 rotated relative to compass card 13 indicates the bearing of the destination relative to the craft heading. A shaft 57, Fig. 2, rotated according to craft heading by compass system 40 drives card 13 via gear 58, relative to fixed indices 12, 20. Shaft 57 and a course set knob 41 drive shaft 36, Fig. 3, via differential 42 and gear 59 to adjust mask 24 and index 30 to maintain index 30 parallel to the magnetic bearing of the selected course. The outputs of a Doppler radar device 66 representing E-W and N-S velocities of the craft, are supplied to the stator of resolver 70 connected to servomotor 71 whose output is connected to the rotor of resolver 70 and represents the ground track bearing. The output of servomotor 71 and shaft 57 move index 21 via differential 73, gear 74 and member 22, Fig. 3, to indicate the craft ground tack relative to the craft heading. The distances travelled and the distances to destination are supplied to summing circuits 84, 92 to give the remaining N-S and E-W distances to destination. These two signals are applied to the stators of resolver 88 to produce on leads 96, 97 the cross-course distance and on course distance to the destination respectively. The shaft 100 of servomotor 98 connected to lead 96, drives the rotor of resolver 88, and the position of shaft 100 represents the bearing to destination. Index 51 driven from differential 101, gear 102 and annulus 52 represents the bearing to destination relative to the craft heading head 97 energizes servomotor 104 giving the on-course distance to destination on counter 106. The rotor of a transformer 111 connected to a synchrotransmitter 110, is connected to shaft 100, and the output of transformer 111 is applied to the winding of potentiometer 108, the wiper of which is connected to shaft 105; the output of potentiometer 108 is applied to index 30 via meter mechanism 32 and arm 45 extending through slot 31 in mask 24. If the pilot is operating with respect to a radio bearing defined by a V.H.F. omnirange system switches 112 is in the downward position, Fig. 2, and index 30 is adjusted according to the deviation from the radio beam. On approach the switch 54 is reversed and the runway heading is set by knob 41 to obtain the deviation from a localizer beam. Specifications 638,971 and 807,512 are referred to.
Patent GB-1410758-A (GB)
Title: Curtains
IPC: A47H13/16
Filed: 1971-08-24
Abstract: 1410758 Curtain heading tapes TOOTAL Ltd 8 Sept 1972 [24 Aug 1971 23 Oct 1971] 41754/72 and 41755/72 Divided out of 1410757 Heading A4B [Also in Division D 1] In or for a curtain, a knitted or woven strip or tape having alternately relatively stiff and relatively flexible regions, formed during the knitting or weaving without requiring subsequent treatment, and incorporating one or more draw threads whereby the strip or tape may be drawn up into uniform folds. The structure of a knitted tape integral with a curtain is described in Specification 1410758.
Patent GB-1415197-A (GB)
Title: Process and apparatus for sorting agricultural produce
IPC: B07C5/342
Filed: 1972-09-08
Abstract: 1415197 Photo-electric sorting apparatus WEIMAR-KOMBINAT VEB 8 Sept 1972 41855/72 Heading G1A Apparatus for sorting agricultural products, Fig.1 (not shown) is provided with a photo-electric testing station, Fig.10 in which either the transmissivity or reflectivity of the products is monitored as they fall sequentially through the station and the electrical output from the station actuates a device which rejects faulty objects. The transmissivity embodiment shown uses a plurality of photo-cells 27 and a reference photocell 30 which views a standard surface 31. The measuring and reference signals are combined in a differential amplifier (36) Fig.15 (not shown). A further source/detector arrangement, Figs 12-14 (not shown) produces a signal indicative of the size of each object which is combined with the reference signal. The combined reference, measuring and size signals are evaluated in a processing circuit (38) which produces a delayed reject signal when a defective object is sensed. In the reflectivity embodiments, Figs 16-21 (not shown) the objects drop sequentially through a ring arrangement (41) whose interior is illuminated by a plurality of shielded halogen lamps. Light reflected from the object surface is monitored by a number of photo-cells (42). Reflectance may be monitored at two different wavelengths, using a beam-splitter and two filter/ detector combinations, Fig.19 (not shown).
Patent GB-1483682-A (GB)
Title: Preparation of oxazolines
IPC: C07F9/653
Filed: 1975-03-14
Abstract: 1483682 Modified polyolefins EXXON RESEARCH & ENG CO 14 March 1975 [27 March 1974] 41931/76 Divided out of 1483681 Heading C3P [Also in Division C5] Polymeric mono- or bis-oxazolines are obtained by reacting together, in the presence of a metal salt, (1) a hydrocarbyl substituted C 4-10  dicarboxylic acid or anhydride or ester, the hydrocarbyl group being substantially saturated and having at least 50 carbon atoms, and (2) a C 4-8  aminoalkanol of formula where X is C 1-3  alkyl or hydroxyalkyl, at least one X being a group of formula (CH 2 ) n OH in which n is 1-3. In examples, various different polyisobutenyl succinic anhydrides, prepared from chlorinated polyisobutylene and maleic anhydride, are reacted with 2-amino-2-hydroxymethyl - 1,3 - propane diol or 2 - amino - 2- methyl-1,3-propane diol in the presence of zinc acetate.  Use.-Additives for fuels, lubricants and refinery streams.
Patent GB-421478-A (GB)
IPC: F23D3/00
Abstract: 421,478. Wick - burners. NIER, B., Beierfeld, Saxony, Germany. June 22, 1933, Nos. 17839 and 17840. Convention dates, Feb. 15 and March 17. [Class 75 (i)] Hurricane lantern burners are prevented from smoking by forming the wick sheath of copper, aluminium, alloys such as pinchbeck richer in copper than brass, or other material of substantially equal thermal conductivity and air is directed on to the wick sheath so as to cool it. Fig. 4 shows one construction of burner in which the wick sheath 25 and, desirably, the flame plate 26 are made of copper or similar highly conductive material and the air passes from a chamber 18 above the oil reservoir to the burner hood 11 through tubular passages 17. Air can pass through gaps 19 between the passages 17 to the space 20 surrounding the wick tube and cools the underpart of the burner. A sieve or strainer 24 is mounted on a plate 15 carrying the hood 11. Fig. 6 shows another construction in which part of the air for combustion passes through a jacket 32 surrounding the copper wick sheath 31. The upper part of the jacket 32 may converge towards the wick sheath. In a third form the jacket instead of being secured to the sieve 33 is secured to the wick sheath by a perforated member. In a fourth form instead of providing a jacket the flame plate is provided with a depending flange against which the air impinges. The Specification as open to inspection under Sect. 91 states that the heat arising from combustion may be dissipated by making either the wick sheath, cover plate, sieve, the under part of the burner, or the wick operating means of copper, or by a supplementary air supply. Fig. 7 (Cancelled) shows a burner construction in which the heat at the burner is conducted away by copper strips 22, 23 which may be attached to the wick tube 25 or another burner part. This subject-matter does not appear in the Specification as accepted.
Patent GB-1367331-A (GB)
Title: Antennae
IPC: H01Q3/16
Filed: 1971-09-10
Abstract: 1367331 Aerials NIPPON TELEGRAPH & TELEPHONE PUBLIC CORP 10 Sept 1971 [28 Sept 1970] 42242/71 Heading H4A The surfaces of the main reflector and of the sub-reflector of a Cassegrain type aerial are specially shaped, so that when the sub-reflector is inclined in either one of two directions from the axis of the main reflector a substantially plane equi-phased wavefront is radiated from or received by the aerial. A graphical construction is described for arriving at the shapes of the reflector surfaces, and equivalent formulµ are derived. Such an aerial for selectively tracking a plurality of geo-stationary communication satellites comprises a main reflector 40, Fig. 8, with feed horn 52 and sub-reflector 43, mounted on a support 47 with foundation 46, and arranged for rotation in the equatorial plane about an axis 51. A motor 50 drives the reflector &c. through gearing, to enable it to be pointed generally towards a particular satellite. Thereafter, tracking is maintained by movement of the sub-reflector 43 by means of a device 42, which is carried on supports 41 fixed to the reflector 40. A device similar to that shown in Fig. 8, for a sub-reflector 60, Fig. 9, comprises three motors 67, 76, 79 which respectively rotate the sub-reflector about a transverse axis through a point 61 on the axis 78 of the main reflector, move the sub-reflector along the axis 78, and rotate the sub-reflector about the axis 78. The motors are controlled by a unit (Fig. 10, not shown) in which a detector responsive to any difference between the directions of the satellite and of the beam radiated from the aerial is coupled to two generators, which produce signals respectively representative of errors about, and perpendicular to, the axis of the aerial. The first error signal operates a control circuit for the motor 79. The second error signal is resolved by an analogue computer into two components, which operate respective control circuits for the motors 67, 76.
Patent GB-1298589-A (GB)
Title: A material-retaining belt for a conveyor belt
IPC: B65G15/14
Filed: 1970-09-04
Abstract: 1298589 Laminated conveyer belt GOODYEAR TIRE & RUBBER CO 4 Sept 1970 [1 Oct 1969] 42450/70 Heading B5N [Also in Division B8] In a conveyer of the type comprising upper and lower endless conveyers arranged to convey material therebetween along an inclined path, the upper conveyer 14 comprises a layer 24 of elastomeric material with lead 25 or other ballast material uniformly dispersed therein such that the layer has a specific gravity of at least 3À00. The upper conveyer further comprises a second layer 27 with a centre portion 28 of a number of plies of square woven textile fabric 29, fibreglass cards or steel cables and lateral sections 30 of elastomeric material which may also be weighted with lead &c. Side or edge portions 32 of elastomeric material, which may be weighted, or metal are arranged to abut the lower conveyer and form a seal therewith to contain the material between the belts. The upper belt is further reinforced by two layers of bias-laid fabric 36 and that surface remote from the edge portions and the edge portions may have a layer 26, 33 respectively of abrasion resistant elastomeric material. In an alternative embodiment, Fig. 6, not shown, the edge portions are dispensed with and in a further embodiment, Fig. 7 (not shown), the first layer (40) is tapered towards the edges of the belt.