baber/WOPTO huggingface dataset:
Patent GB-760037-A (GB)
Title: Improvements in production of pyridine bases and catalyst therefor
IPC: B01J23/86
Filed: 1954-01-07
Abstract: Pyridine or alkylated pyridines are produced by a process comprising bringing a vaporous mixture of a 2-alkoxy-3,4-dihydro-2H-pyran or an alkylated derivative thereof, ammonia, water and hydrogen into contact with a solid catalyst comprising a substantially alkali-free porous activated alumina containing copper and chromium in a reaction zone maintained at a temperature between 200 DEG  and 350 DEG  C. The 2 - alkoxy - 3,4 - dihydro - 2H - pyrans and their alkylated derivatives suitable as starting materials are those having the general formula: <FORM:0760037/IV(b)/1> in which R1 is an alkyl group having 1 to 3 carbon atoms, or an alkoxyethyl group in which the alkoxy group has 1 to 3 carbon atoms and R2 to R5 represent hydrogen or an alkyl group having 1 to 3 carbon atoms.  The catalysts used preferably comprise from 0.5 to 6 per cent by weight of copper and from 0.1 to 2 per cent by weight of chromium, the balance being an activated substantially alkali-free alumina.  The life of such a catalyst is prolonged by the presence of from 0.01 to 0.10 per cent of an alkali metal sulphate.  In the examples: (a) 2 - ethoxy - 3,4 - dihydro - 2H - pyran, water, ammonia and hydrogen are reacted in the presence of a catalyst comprising copper and chromium supported on alumina and containing sodium sulphate to give pyridine; (b) 2-ethoxyethoxy-3,4-dihydro-2H-pyran is treated with water, ammonia and hydrogen in the presence of the catalyst described in (a) to give pyridine; (c) 2-ethoxy-4-methyl-3,4-dihydro-2H-pyran is treated with water, ammonia and hydrogen in the presence of the catalyst described in (a) to give g -picoline; (d) 2-methoxy - 3 - ethyl - 4 - methyl - 3,4 - dihydro-2H-pyran is treated with water, ammonia and hydrogen in the presence of the catalyst described in (a) to give 3-ethyl-4-methylpyridine; (e) 2-ethoxy-4-n-propyl-5-ethyl-3,4-dihydro-2H-pyran is treated suitably to give 3 - ethyl - 4 - n - propyl pyridine; (f) 2 - ethoxy-3-methyl-3,4-dihydro-2H-pyran is treated similarly to give b -picoline; (g) 2-ethoxy-3,4-dimethyl-3,4-dihydro-2H-pyran is treated similarly to give 3,4-dimethyl pyridine; and (h) 2-ethoxy - 4 - propyl - 6 - methyl - 3,4 - dihydro2H-pyran is treated similarly to give 2-methyl-4-propyl pyridine.  A long list of other suitable starting materials is given.ALSO:A catalyst for reacting substituted pyrans with water, ammonia and hydrogen to give pyridines comprises a substantially alkali-free porous activated alumina containing copper and chromium.  Preferably the catalysts contain from 0.5 per cent to 6.0 per cent by weight of copper, and from 0.1 per cent to about 2 per cent by weight of chromium with or without from 0.01 per cent to 0.10 per cent by weight of an alkali metal sulphate such as sodium sulphate.
Patent GB-624026-A (GB)
Title: Improvements relating to radio navigational systems
IPC: G01S1/02
Filed: 1947-01-06
Abstract: 624,026. Radio navigation. HARDIE, A. M., and METROPOLITAN - VICKERS ELECTRICAL CO., Ltd. Jan. 6, 1947, No. 477. [Class 40 (vii)] In a radio-navigational system the position of a mobile craft is obtained by the determination of two quantities, the first being a function of the difference of the distances of the craft from two spaced fixed stations and the second a function of the sum of the distances from the same two stations. The two fixed stations are indicated at A and D on the drawing and the mobile craft at C, the loci of constant differences in the distances of a point from the two stations are hyperbolic with the transmitting stations as focal points and the loci of constant sums of the distances of the point from the stations are confocal ellipses which cut the hyperbola orthogomally. The position of the craft C may be determined by determining the value of the constants characterizing the particular hyperbola and ellipse which passes therethrough. The first of these constants may be determined by known time-difference methods such as by radiating synchronized pulses from the two stations or phase-related continuous radiofrequency waves. The second may be obtained by transmitting a signal from the craft which operates a responder at one of the stations, causing a signal to be passed to a second responder at the other station which in turn sends a signal which is received on the craft. The time interval between the transmission of the original signal and the return of the resulting signal from the second responder will be proportional to the sum of the distances from the craft to the two stations plus a constant term determined by the transmission time between the two responders. The link between the responders may be by radio or by land line. The craft equipment may include a cathode-ray tube for determining the time interval between the transmission of the interrogating signals and the reception of signals, which may be of different frequency, from the second responder. It is stated that the system may be used in conjunction with a "Gee" type system to provide a more accurate positional determination. If the system is used by itself the ambiguity of fix due to the fact that a given confocal hyperbola and ellipse intersect in more than one point may be resolved by the use of other means such as a rotating beacon.
Patent GB-264482-A (GB)
Title: Improvements in air-gas producing apparatus
IPC: C10J1/10
Filed: 1927-01-07
Abstract: 264,482. BrÚgeaut, L. Jan. 14, 1926, [Convention date]. Carburetting.-Air is forced under pressure from a. fan 7 through a pipe 6 and through a number of conduits 1 containing wicks 3 which extend through sheaths 4 to near the bottom of a vessel 2 containing a volatile liquid fuel, the carburetted air passing to an outlet pipe 8 leading to a distributor 9. The number of carburetting tubes traversed by the air increases only as the consumption of gas increases. A pipe 10 having a valve 11 connects the pipes 6 and 8, so that on opening the valve, air is byepassed directly from pipe 6 to pipe 8 and a portion only of the wick-filled tube 3 are brought into action. The pipes 1 are lined with a layer of absorptive material 5 such as blotting paper.
Patent GB-1443433-A (GB)
Title: Methods and apparatus for the production of textile fabrics
IPC: F02C6/16
Filed: 1973-02-12
Abstract: 1443433 Weaving knitted yarns ETABS CHEYNET ET SES FILS SA 4 July 1973 648/ 73 Headings D1E and D1K A fabric comprising warp yarns 1 covered with further yarns 2, is woven on a loom having means for knitting the yarns 2 to form a sheath around the core yarns 1. The loom may have weft insertion by sickle shaped weft inserters (not shown). Various embodiments of devices for knitting the yarns 2 around warp yarns 1 are described and shown (Figs. 2-9, not shown). The yarns 1 may be of natural or synthetic elastomeiric or non-elastic material A. number of tapes having the covered warp yarns 1 may be woven side-to-side on the loom. The covering apparatus may be separate from or attached to the loom and the warps are advanced continually to the weaving zone of the loom.
Patent GB-288376-A (GB)
Title: Improvements in skips for raising and stacking bricks
IPC: B66B17/08
Filed: 1927-01-10
Abstract: 288,376. Moir, A. Jan. 10, 1927. Lifting-craddes.- A cradle for raising and stacking bricks comprises an open-bottomed box or frame a and bars d which are supported in notches e<1> at the top of guides e whilst bricks care stacked upon them in the frame. Low partitions g prevent canting of the lower layers of bricks. The loaded cradle is lifted by slings connected with a bar p which moves in guides q. This bar is connected at each end by chains n to a yoke-bar l, moving in guides m, and each bar l is connected by chains to eyes h, Fig. 4, in which the bars d are journaled. When the loaded skip is lifted, the bars d leave the notches e<1>, and on' setting down the cradle on to a stack of bricks or elsewhere, the bars move down the slots e to either side of the bricks c. The lifting-bar p descends in the guides q and comes beneath gravity catches s so that the cradle can be lifted off the stack with the bars d resting at the bottom of the guides e. The Provisional Specification. describes an alternative form in which a frame with inclined guide slots slides over the cradle and may act automatically when the cradle is set down to lift the bars from the notches or may be raised by the hoisting sling for this purposed
Patent GB-1135631-A (GB)
Title: Electrode means for mhd devices
IPC: H02K44/10
Filed: 1966-01-06
Abstract: 1,135,631. Generators operating by electromagnetic interaction with fluids. AVCO.CORP. 6 Jan., 1966 [18 Jan., 1965], No. 703/66. Heading H2A. The electrode assembly of a MHD device comprises a plurality of electrode units consisting of cooled metallic base members 10 separated by insulation 15 and covered by a refractory material which is electrically conducting at the operating temperature of the duct wherein means are provided for preventing flow of current through the refractory material covering adjacent base members. In the structure shown, projections 20 on base member 10 are only covered by a thin layer of semiconductor material which is thereby maintained cooler than the part covering surface 22 and is therefore substantially non-conducting. Alternatively, a spacer of refractory insulating material, e.g. alumina, may be used and the base members may have a single central groove, Figs. 3 and 4 (not shown). Similarly, constructed annular electrodes which may lie along equipotential planes are described, Figs. 6-8 (not shown), and these may have conducting wires embedded in the semi-conductor material to improve the conductive properties. A suitable semi-conductor material is zirconium oxide doped with calcium oxide but zirconium diboride or nitride and doped refractory ceramics can be used. The insulation 15 between base members 10 is either PTFE, cork or rubber and this material also acts as a gas seal.
Patent GB-248688-A (GB)
Title: Improved means for cutting off the tops of sugar beet and like roots
IPC: A23N15/04
Filed: 1926-01-09
Abstract: 248,688. Gratton, E. H. Jan. 9, 1926. Crops, root, topping-machines for.-Sugar beets or s;milar roots are topped by a tool comprising a vertical support a, having a semicircular shaped foot b adapted to engage, the root, and a knife blade f actuated against the pressure of a spring g by a handle h. The rod e of the blade f passes through guides c, d, and the support a is provided with a handle i. The knife may be depressed by treadle or like mechanism instead of manually.
Patent GB-562871-A (GB)
Title: Improvements in or relating to hydraulic pressure regulating valves
IPC: B60T11/28
Filed: 1943-01-14
Abstract: 562,871. Fluid-actuated valves. BENDIX AVIATION CORPORATION. Jan. 14, 1943, No. 739. Convention date, Feb. 2, 1942. [Class 135] [Also in Group XXXIV] In a valve having an inlet 29, a connection 30 to a brake or other motor, and an exhaust 31, the inlet valve 37 is urged towards a seat 35 on an insert 36 screwed into the casing by a spring 40 bearing against a collar 39 secured to the valve spindle 38. The exhaust valve 33 has a socket loosely engaging the end of the spindle 38 and held against entire separation by a flange on a ported cap screwed to the insert. The exhaust valve co-operates with a seat formed about an axial passage in a piston 34 slidably mounted in the casing. The inner periphery of an annular flexible diaphragm 51 is clamped between two parts of the piston secured together by a hollow bolt 50 while the outer periphery is clamped between two parts of the casing. The piston is variably loaded by two concentric springs 54, 55 bearing against an abutment 53 on a rod 28 slidably mounted in the casing. This rod is moved to vary the spring load and thus the pressure in the working part by a lever 24 pivoted on an extension 27 of the valve casing and connected by a link with a control pedal or member.
Patent GB-121653-A (GB)
Title: Improvements in Tractors.
IPC: B62D49/06
Filed: 1918-01-17
Abstract: 121,653. Boon Tractors, and Boon, J. D. Jan. 17, 1918. Controlling - apparatus, arrangements of hand, foot, and transmission gear in conjunction with.- The connexion between the engine or valve control and the point of manual operation, in twowheel tractors, has therein a vertical rod 13 parallel with and located on or substantially on the axis 14 of the pivotal motion of the forward and rear portions of the tractor. Three vertical rods 13 may be arranged side by side and parallel, or, as shown in Fig. 3, the three rods may be co-axial tubes. Each end of the vertical rods is provided with a ball joint.
Patent GB-1422192-A (GB)
Title: Electrodeposited coatings
IPC: C09D5/00
Filed: 1973-01-08
Abstract: 1422192 Electrodeposited radiation cured coatings KANSAI PAINT CO Ltd 8 Jan 1973 [10 Jan 1972] 988/73 Heading C3P [Also in Division C7] Articles are anodically coated in an aqueous bath comprising a water soluble or dispersible polymerizable unsaturated resin having an acid value 30-240, an unsaturation equivalent 250-2000 and a number average MW 1000- 600, a water-insoluble photopolymerization initiator and a water-insoluble polyfunctional unsaturated compound having at least 2 unsaturated groups or a mixture thereof with a monounsaturated compound, followed by curing the coating with actinic radiation. The resin may be (I) an addition product of an α,#-ethylenically unsaturated dibasic acid or anhydride with unsaturated bonds in the fatty acid chain of an ester of an epoxy resin with an unsaturated fatty acid and/or (II) a fatty acid modified alkyd and/or (III) a modified maleinized oil. In examples benzoin ethyl ether is used as initiator in aqueous 10% solids suspensions containing (1) a proprietary epoxy resin sequentially reacted with linseed oil fatty acid and maleic anhydride followed by ring opening with n-butanol, together with ethylene glycol monobutyl ether, trimethylol trimethacrylate and NaOH to pH 8À5; (2) trimethylol propane/ phthalic anhydride/safflower oil resin, butanol, the unsaturated reaction product of dimethylolpropionic acid, tolylene diisocyanate and 2- hydroxyethyl methacrylate with KOH to pH 8À5 and pigmented with TiO 2 /carbon black; and (3) linseed oil/maleic anhydride resin sequentially modified with vinyl toluene and the reaction product of p-tert-butyl phenol and HCHO, ring-opened with KOH, together with ethylene glycol monoethylether and tetramethylol methane tetramethacrylate. The substrate may be initially conversion coated. Radiation of #=3-5 Î 10<SP>3</SP>A from sunlight or a Hg, Xe or arc lamp may be used.
Patent HK-22389-A (HK)
Title: Semiconductor device and method of manufacturing the same
Inventor: OKIKAWA SUSUMU
IPC: B23K20/00
Filed: 1989-03-16
Abstract: A bonding wire 6 for connecting a semiconductor pellet 3 and a lead in a semiconductor device has the shape and height of its loop controlled by annealing the bonding wire at a specified temperature before bonding and/or by employing a specified composition for the material of the bonding wire. In addition, good bondability can be attained if the hardness of a ball formed at the end of the bonding wire for ball bonding is in a specified range of Vickers hardness of 30 to 50, preferably 35 to 42. The bonding wire is made of aluminum or an aluminum composition containing e.g. about 1.5 weight-% of magnesium or about 2% of silicon. <IMAGE>
Patent JP-S60146697-A (JP)
Inventor: SUZUKI HIDETOSHI
IPC: B25J13/08
Filed: 1984-01-06
Abstract: (57)【要約】本公報は電子出願前の出願データであるた め要約のデータは記録されません。
Patent JP-H02183470-A (JP)
Title: Information recorder
Inventor: YOSHIMARU TOMOHISA
IPC: G11B20/12
Filed: 1989-01-06
Abstract: PURPOSE:To enlarge the recording capacity and to accelerate the access time and also to stabilize the recording on an outer circumferential part of a disk by recording an optical disk in making recording pit intervals gradually widened in a prescribed range. CONSTITUTION:Information is recorded to the optical disk 1 by driving a semiconductor laser oscillator 6 with a recording pulse signal S11 from a data modulating circuit 55. In this case, the frequency of a data transfer clock becomes high in proportion to the position moving in the radial direction of the optical disk 1, and on a track with a radius (r), pits are formed in order of a0, a1, a2..., having a pit pitch of (l), whereas on a track with a radius 2r, bits are formed in order of b0, d1, c2(d2), d3..., and their pit pitch is in between a characteristic line of a CAV system and a characteristic line in the direction of constant line density. Then, by raising the frequency of the transfer clock and forming recording pits, the recording is performed by widening gradually the recording pit intervals.
Patent JP-H04323420-A (JP)
Title: Construction of underground wall for large cross section and deep depth
Inventor: IWATO MASAHIKO
IPC: E21D13/00
Filed: 1991-01-08
Abstract: PURPOSE:To carry out excavation in a large cross section and deep depth without using a strut, etc., or even increasing the intervals of struts, etc., when an underground wall in a large cross section and deep depth is constructed. CONSTITUTION:Concrete is placed in a wall-like or column-like preceding caltivated groove to construct a wall-like body or column-like body element 1 in constructing an underground wall. Then a wall-like or column-like groove consecutive to the element 1 is excavated, and concrete is placed to construct a wall-like body or column-like body element 2. Each element is mutually joined to make a solid structure.
Patent JP-H06318270-A (JP)
Title: Method and device for reading out chracter
Inventor: YAMAUCHI TOSHIFUMI
IPC: G06K9/62
Filed: 1991-01-08
Abstract: PURPOSE:To execute character recognizing processing with high identifying capacity for similar characters by utilizing preceding and succeeding character shape information. CONSTITUTION:A projection vector obtained at the time of executing distance calculation between a feature vector obtained by a feacture extracting part 3 and a recognition dictionary vector stored in a recognition dictionary memory 4 by a distance calculating part 5 is stored in a projection vector register 7. An evaluation function selecting table memory 8 finds out an evaluation function corresponding to the area of the projection vector, and when a judging part 11 judges that a judgement condition is satisfied, stores an evaluation function number 14 in an evaluation function selecting register 9. An evalution function table memory 10 outputs an evaluation value 16 based upon a specified evaluation function and the judging part 11 determines a category based upon the value 16 and a distance value found out by the calculating part 5. Thereby an evaluation function can be changed in accordance with the areas of projection vectors for the preceding and succeeding character shapes and even a character which can not be judged can be judged by changing its evaluation function and recognizing it again.
Patent JP-H09186485-A (JP)
Title: Room for radio communication
Inventor: KANDA KAZUNORI
IPC: E04B1/92
Filed: 1996-01-08
Abstract: PROBLEM TO BE SOLVED: To prevent the deterioration of a communication environment and to utilize many radio communications systems at the same frequency band by providing the thin electromagnetic-wave low reflection material, which weakly absorbs electromagnetic waves in the broad frequency band. SOLUTION: A thin electromagnetic-wave low reflection material 1, which weakly absorbs electromagnetic waves in a broad frequency band (has the electromagnetic- wave absorbing property with the reflection attenuating rate of -2 to -15dB in the frequency band of 1 to 60GHz), is arranged. The electromagnetic-wave low reflection material 1 can be attached to a wall surface 3 of a room as a wall material. Furthermore, a partition 10, a screen and a room divider, which are provided in front of an opening part such as a door linking to the outside of the room, can be formed of the electromagnetic reflection material 1. A door 9 can be formed of the electromagnetic-wave low reflection material 1. Furthermore, the electromagnetic-wave low reflection material 1 can be attached to the surfaces (front surface or side surface) of a utensil 51 and office equipment 52 provided in the room.  In addition, the electromagnetic-wave low reflection material 1 having the magnetism can be attached to the planar part of a storage bin 50 comprising metal by the magnetic force.
Patent JP-S5284877-A (JP)
Title: Detector for defective separation of lead wires
Inventor: NAITOU YUTAKA
IPC: H01J9/42
Filed: 1976-01-07
Abstract: PURPOSE: To easily and accurately detect defective separation of lead wires extending from an end of a continuously rotating glass tube, and correct the defective separation to obtain an acceptable product. 
     COPYRIGHT: (C)1977,JPO&Japio
Patent JP-H02181577-A (JP)
Title: Remote commander for video camera
Inventor: KAWASE ATSUSHI
IPC: H04N5/00
Filed: 1989-01-05
Abstract: PURPOSE:To easily operate a video camera and another electronic equipment from a remote place by providing a commander body having a reproducing operation system button in the way of a connection cord to connect the video camera and another electronic equipment. CONSTITUTION:When an object photographed by a camera incorporated type video 1 is to be reproduced in a television receiver(TV) 20, one plug 12 of a remote commander 2 is connected to the connection terminal of the camera incorporated type video 1, and the other plug 13 is connected to the connection terminal of the TV 20. Further, when a reproducing button 4 of the commander body 2 is pressed, a control signal is outputted to the camera incorporated type video 1, and video and audio signals are outputted from this camera incorporate type video 1 through a connection cord 11 to the TV 20 and reproduced in the monitor of the TV 20. Thus, both the camera incorporated type video 1 and the TV 20 can be easily operated from the remote place.
Patent JP-S59128030-A (JP)
Title: Controller of weatherstrip for vehicle
Inventor: WATANABE MASAHIKO
IPC: B60R13/06
Filed: 1983-01-07
Abstract: PURPOSE:To improve sealing performance by making a weatherstrip adhere closely to a door and contract at the time of opening of the door, and to prevent a half-closed door at the time of closing of the door from occurring after that, by expanding the weatherstrip by increasing inner pressure of the same at the time of closing of the door. CONSTITUTION:When a side door 2 is opened, it is sensed by an opening and closing door sensor 42 and a discharge side solenoid reed valve 32 is opened through a control circuit 40. An inner space 4a of a weatherstrip 4 is connected with the atmosphere through an air line 31 because of the above, through which the weatherstrip 4 is contracted. As the weatherstrip does not turn into a state of closed door resistance as it is being contracted when the door 2 is closed under this condition after that, the door 2 is prevented from becoming half- closed state. When the door 2 is closed completely and a closed door state is sensed by the opening and closing door sensor 42, a feed side solenoid valve 23 is opened then, compressed air in a reservoir 24 is fed into the inner space 4a and the weatherstrip 4 is abutted against the side door 2 closely due to swelling.