baber/WOPTO huggingface dataset:
Patent GB-1063528-A (GB)
Title: A process for the preparation of anilide derivatives
Inventor: OKADA YOSHIYUKI
IPC: C07C233/02
Filed: 1964-04-03
Abstract: Anilides of formula <FORM:1063528/C2/1> are prepared by reacting the correspondingly substituted carbanilyl chlorides with R1CO2M; M is H or an alkali metal, R1 is a C1- 5 aliphatic hydrocarbon radical, R is H or C1- 5 alkyl, X and Y are halogen or C1- 5 straight-chain alkyl, or one of X and Y may be H.  Specified products are 3-chloroacetanilide; 4-chloropropionanilide; 3,4-dichloroacet-, isobutan-, 21-methylpentan- and methacrylanilides; 3,4-dichloropropionanilide and its N-Me and N-Et analogues; and 3-chloro-4,21-dimethylpentananilide.  Starting materials.-In examples, 3,4-dichlorocarbanilyl chloride and its N-Me analogue are prepared by reacting the corresponding anilines with phosgene. Reference has been directed by the Comptroller to Specification 974,552.ALSO:Herbicidal compounds have the formula <FORM:1063528/A5-A6/1> in which X and Y are halogen or C1-5 straightchain alkyl, or one of X and Y may be H, R is H or C1-5 alkyl and R1 is a C1-5 aliphatic hydrocarbon radical.  Specified products are 3-chloroacetanilide; 4-chloropropionanilide; 3,4-dichloroacet-, isobutan-, 2\sv-methylpentan- and methacryl-anilides; 3,4-dichloro propionanilide and its N-Me and N-Et analogues; and 3-chloro- 4,2\sv-dimethylpentanilide.  Reference has been directed by the Comptroller to Specification 974,552.
Patent GB-820217-A (GB)
Title: Retractable undercarriages for aircraft
Inventor: PERDUE JACK
IPC: B64C25/34
Filed: 1956-05-04
Abstract: 820,217. Aircraft undercarriages. ELECTROHYDRAULICS Ltd. April 16, 1957 [May 4, 1956], No. 13917/56. Class 4. In an aircraft undercarriage having tandem wheels mounted on a bogie, the bogie is arranged to lie substantially parallel and adjacent the main leg when the undercarriage is retracted. The main leg 1, pivoted to the aircraft structure and provided with a sliding tube assembly 2 is pivoted adjacent the forward end of a wheel bogie 3 and braced to the structure by a folding strut 6. A shock absorber 5 pivotally connects the aircraft structure and the bogie at a point aft of the connection with assembly 2. To retract the undercarriage to the position shown by chain-dotted centre lines a jack (not shown) " breaks " strut 6 and swings the undercarriage upwardly, the shock absorber 5 becoming fully extended before swinging the bogie about its pivot with assembly 2. The geometry may be so arranged that, after folding of the undercarriage, the shock absorber causes members 1, 2 to shorten. This may be achieved also by shortening shock absorber 5 by hydraulic means.
Patent GB-234998-A (GB)
Title: An improved machine for the production of protective edges on sheets of paper and the like
IPC: B31F1/00
Filed: 1924-06-06
Abstract: 234,998. Lubcke, E. June 6, 1924. Sheet material, strengthening edges of. -Relates to apparatus for applying to the edges of paper and like sheets, such as drawings, a strengthening thread embedded in a fold of the material by adhesive. The sheet is clamped in a position determined by stop gauges by clamping bars b, b<1>, Figs 1 and 3, on a fixed frame a, the means for applying the adhesive and the thread, and for folding and pressing the edge of the sheet, being mounted on a bracket e sliding along the edge of the sheet on bars c<1> on the frame a. Adhesive is applied by a roller g and the edge is folded by a mouthpiece o, Figs. 1 and 4, oblique to the paper edge and tapering towards the rear, curved in cross-section, and having an extension o<1> guiding the sheet against the roller g. Thread l is drawn from a reel i over a tension disc k and guide roller m and passes through the mouthpiece o beneath the adhesively-coated paper edge, which is folded about the thread and pressed by rollers h, h<1> drawing the thread from the reel i. The rollers g, h are rotated when the bracket e is moved to the left in Fig. 1 by gear wheels q, Fig. 3, engaging a fixed rack f on the frame a and connected to the rollers by clutches r preventing rotation of the rollers on returning the bracket e. Shears p operated by hand or mechanically cut off the thread. In a modification, the bracket e is stationary and the sheet is moved by guiding and transporting devices, one side, or both sides simultaneously, of separate sheets inserted one behind the other or of a continuous strip drawn from a reel being operated upon.
Patent GB-350671-A (GB)
Title: Improvements in or relating to hay sweeps
IPC: A01D87/08
Filed: 1930-05-06
Abstract: 350,671. Hay sweeps. PAWSEY, J. S., Rayne Foundry, Rayne, near Braintree, Essex. May 6, 1930, No. 13932. [Class 6 (iii).] A hay sweep 3 adapted to be pushed by a tractor 2 has a pole or two poles 6 extending rearwardly thereof to the rear end of and beneath the tractor. The tractor hitch 7 is fitted with a U- shaped bracket 8 that passes between rollers 9 secured between the poles. The motion of the tractor is thus communicated to the sweep. The wheels 5 of the sweep have vertically pivoted studs with rearwardly projecting arms 10, a connecting arm 11 between them and a steering arm 12. The arm 12 is connected by a link 13 or other device with the steering mechanism of the tractor so that the wheels 5 are directly steered with the tractor wheels 2<1>. The front end of the sweep is raised or lowered by a hand bell-crank lever working over a quadrant and connected by a link to one of the poles 6. The sweep and the poles are braced together by tie rods and struts 18.
Patent GB-1119913-A (GB)
Title: Support system for electrolytic cells
IPC: C25B9/00
Filed: 1967-03-28
Abstract: <PICT:1119913/C6-C7/1> An electrolytic cell, e.g. a chlor-alkali diaphragm cell, is supported by an elongated support member 12 (Fig. 1, bottom plan view), which is positioned under and connected, e.g. through a spacer (24) with the cell bottom 10 and has thereunder a central leg 16, and by two additional legs 18, 20 positioned apart under the cell bottom. The cell bottom may be of concrete or stainless or nickel or other steel, preferably coated with after-chlorinated polyvinyl chloride, polyvinylidene chloride, P.T.F.E. or ceramic; the legs 16-20 may be of wood, stone, concrete or metal (preferably insulated from cell bottom by rubber, plastic, wood, stone or concrete).  The support member is preferably of ferrous metal or alloy, e.g. mild steel.
Patent GB-543843-A (GB)
Title: Manufacture of polyamides
IPC: C08G69/28
Filed: 1940-09-09
Abstract: 543,843. Condensation products of carboxylic acids and amines. DU PONT DE NEMOURS & CO., E. I. Sept. 9, 1940, No. 14001. Convention date, Sept. 8,1939. [Class 2 (iii)] Polyamides are obtained by heating' in the presence of an acid catalyst having a dissociation constant greater than 2 x 10<SP>-3</SP>, an aromatic diamine having at least one hydrogen atom attached to each amino nitrogen atom and having a radical length of at least 5 and a dicarboxylic acid having a radical length of at least 5. Catalysts specified are phosphoric, sulphuric, hydrochloric, p-toluene-sulphonic, hydrobromic, camphor sulphonic, α and # naphthalene sulphonic and alkyl sulphonic acids or boron phosphate. Diprimary meta diamines are preferred and there are specified m-phenylene-diamine, 2 4-toluylenediamine ; 2À6-toluylene diamine ; 3À5-toluylenediamine ; 14- dimethyl-3 3À5 - diaminobenzene; 1À3-dimethyl- 2À4-di-aminobenzene ; 1 - ethyl - 2À4 diaminobenzene; p-phenylenediamine; p.p<SP>1</SP>diphenyldiamine. Dibasic acids. sebacic, adipic, glutaric, #- methyl adipic, pimelic, suberic, azelaic, tetradecanedioic, octadecanedioic, p-phenylenediacetic, isophthalic, di-glycollic, thiodibutyric acids. Examples (1) 4888 parts m-phenylene diamine, 9095 parts sebacic acid, and 2.80 parts phosphoric acid are heated in presence of a stream of carbon dioxide for one halfhour to 182‹C., for one half-hour to 218‹C. and for one half-hour to 255‹C., and then for 2 hours at the last temperature under a pressure of 20 mm.abs. An amber coloured polymer having a m.p. of 190‹C. and an intrinsic viscosity of 0.66 was obtained and was spun into continuous filaments by gas extrusion from a spinneret having an orifice 0.2" and maintained at 255‹C. In examples (3) m-phenylene diamine is treated with adipic acid and in examples (4) and (5) 2À4-toluylenediamine is treated with adipic and sebacic acids and with adipic acid alone. Viscosity stabilization of the polyamide is obtained by adding excess up to 5 molar per cent. of either reactant or by addition of 0À1-5 per cent. of a monoamine or mono carboxylic acid or derivative thereof, e.g. acetic acid, 2-ethylhexylamine, ethyl butyrate. Specifications 461,237, 525,516 and U.S.A. Specifications 2,071,250 and 2,130,948 are referred to.
Patent GB-1213887-A (GB)
Title: Heated humidifying apparatus
IPC: B29C35/04
Filed: 1968-03-22
Abstract: 1,213,887. Heating sheet material. FMC CORP. 22 March, 1968 [10 May, 1967], No. 14036/68. Heading F4U. Apparatus for heating and humidifying sheet material comprises a hollow body which is supplied with moist steam under pressure and has means for discharging said steam along one side thereof, and means for circulating a heated fluid, separately from the moist steam, through the hollow body. As shown, the hollow body 11 is of triangular cross-section and is used to heat ducts 83, 85 moving along convergent paths prior to their lamination. Partitions 29, 31 divide the interior of the body into three chambers, the upper and lower chambers 33, 37 being connected at one end of the apparatus. Steam is supplied to chamber 33 and withdrawn via a pipe 47 extending through chamber 37. The central chamber 35 is supplied with moist steam at a plurality of spaced points (Fig. 1, not shown) and has apertures in its walls, the apertures being covered by plates 75 which have slots 77 for directing the steam on to sheets 83, 85. A perforated conduit 79 removes excess steam and any condensate from chamber 35 which is provided with an arcuate wiremesh baffle 69 for pressure equalization along the chamber.
Patent GB-887816-A (GB)
Title: Improvements relating to fasteners for snapping into panel apertures
Inventor: RAPATA GEORGE MARTIN
IPC: F16B12/30
Filed: 1958-05-02
Abstract: 887,816. Stud and socket fastenings; spring clips; anchor-nuts. ILLINOIS TOOL WORKS. May 2, 1958, No. 14098/58. Classes 44 and 89(1). A fastener of deformable mouldable non- metallic material for snapping into a panel aperture comprises a shank and a head, and a wing fixed to the shank end remote from the head and projecting towards the head to be resilient towards the shank as it is applied through the aperture. In one arrangement, a hole 26, Fig. 1, extends through shank 30 and head 22 to receive a screw, there being two wings 36, 38, Fig. 4, of substantially the same width as the shank, the free end of each wing having a clamping surface 44 and a projection 48, and the shank having a slot 60 between the wings. Screw 28 cuts a thread in hole 26 and, when tightened, compresses the wings so that the projections engage opposed edges of the panel opening and slot 60 causes the shank to grip the screw. The projections may have lateral head extensions to prevent the wings passing completely through the opening. Alternatively the head may be wider than the shank and slotted or apertured to save material. In another arrangement, a clip 100, Fig. 7, is integral with a shank 30e having wings 36e, 38e by which the shank is fixed in a panel opening. In a modification, clips 112, 114, Fig. 9, are integral with the winged shank. In yet another arrangement, the shank has a single wing 38g Fig. 10, and a groove 126.
Patent GB-870216-A (GB)
Title: Improvements in hopper barges
Inventor: KONING JAN DE
IPC: B28C7/00
Filed: 1959-04-24
Abstract: 870,216. Hopper barges. AMSTERDAMSCHE BALLAST MAATSCHAPPIJ N.V. April 24, 1959, No. 14143/59. Class 113. In a hopper barge the bottom opening is closed by bouyant flaps 3 which are pivotally mounted on eccentrically located shafts 4, so that in the closed position the free ends of the flaps are above the horizontal plane through the shafts 4 are provided with flexible tubular sealing members 5 which are caused to expand and support the free ends of the flaps 3 by a pressure fluid fed from the reservoir 7 via the conduits 11 and 12, cylinder 10, conduit 8, below pivot 4 and conduit 6. Quadrants 17, secured to the pivot shafts 4, engage toothed racks on the piston rods 16 so that as the flaps 3 open and close the pistons 9 are caused to travel towards and away from each other. In the closed position, the stop valves 13 and 15 are closed, the weight of the charge on top of the flaps pressurised the fluid in the members 5. To discharge the barge the stop valve 13 is opened and the fluid is allowed to flow to the reservoir 7, reducing the widths of the members 5 and allowing the flaps to open under the weight of the charge. During opening the pistons 9 are caused to move towards each other and when completely open the bouyant flaps 3 are prevented from closing by the vacuum that such movement would create between the pistons due to the non-return valve 14. The valve 15 when opened allows fluid to flow back into the system and the flaps to close. One flap may be used to close the barge bottom opening with the member 5 bearing on a wall of the hopper.
Patent GB-257227-A (GB)
Title: Improvements in or relating to hub caps for the propellers of aircraft or the like
IPC: B64C11/14
Filed: 1926-06-04
Abstract: 257,227. Soc. Anon. des Avions M. Wibault. Aug. 24, 1925, [Convention date]. Screw propellers.-A hub cap for the boss of a propeller has its outer extremity gripped between conical surfaces formed on a nut and stud which is screwed into the main nut securing the boss. A stud 3 screwed into the nut 4 has a conical enlargement 3a into which is screwed an end nut 5 having a conical hollow 5<b>. The end of the cap 2 is held firmly between the two conical surfaces 3<a>, 5<b>. The cap is riveted at the forward end to two discs 1<a>.
Patent GB-874090-A (GB)
Title: Improvements relating to electric space heaters
Inventor: WINTER FRANCIS BERNARD BADDELE
IPC: F24C7/08
Filed: 1957-05-03
Abstract: 874,090. Electric heating. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. April 29, 1958 [May 3, 1957], No. 14193/57. Class 39(3). A tubular heater comprises a cylindrical casing 1 housing an elongated insulating strip 2, e.g. of mica, carrying a single-coiled element 3 of hairpin configuration which passes several times from one face of the strip to the other through apertures 4. Secured to the respective ends of the strip are a lampholder 9 and a member 13 carrying terminals 15 and an earthing pillar 19. Within the casing 1 a low wattage lamp 27 mounted in the holder 9 is connected across a portion of the element 3 by means of conductors 28, 29 and terminal screws 30, 31, the end of the casing adjacent the lamp being apertured as at 34 so that an external visual indication is given when the heater is in use.
Patent GB-1175146-A (GB)
Title: Sheet Material Shaping Apparatus
Inventor: SARKA ALBERT JOHN
IPC: B26F1/44
Filed: 1967-03-29
Abstract: 1,175,146. Creasing machines; printing surfaces; stopping, starting &c. HARRISINTERTYPE CORP. 29 March, 1967, No. 14386/67. Heading B6C and B6J. [Also in Division B8] Creasing sheet material.-Sheet material, particularly cardboard box blanks, in sheet or web form, is creased and cut by means of cutting rules 18, Fig. 4, and creasing rules 19 carried on complementary flexible die plates 14, 15, Fig. 1, supported on cylinders 11, 12, the sheets being caused into the rip by grippers on the cylinder 12, which then release the sheets so that the latter are carried through the rip with maintained register by the rules and by sponge rubber projecting members 70 70 on the die plates. Printing-surfaces.-The flexible plate 15, Fig. 7, is clamped to the cylinder 12 by means of a leading edge clamp 90 and a trailing edge clamp 91, Figs. 7 and 8. The clamp 90 comprises a plurality of pairs of jaws 92, 93, the jaws 93 being moved to open or closed position by rotation of a rod 94. The jaws are movable circumferentially to tighten the plate by turning jackscrews 95. The clamp 91 comprises a pair of jaws 125, 126, the latter being opened and closed by rotation of a rod 127. The plate is initially registered with the jaws by pins which are inverted into openings in the plate and openings 130, 131, 132 in the jaws, and removed after clamping. Cylinder adjustments.-The cylinders 11, 12, Fig. 9, are mounted on shafts 151, 150 and rotated by maching helical gears 156, 157, 158. The cylinder 11 can be adjusted axially by rotating a screw 165 so as to move the cylinder bearing assembly 152 relative to a sleeve 154. The cylinder 11 can be adjusted circumferentially by a screw 170 which moves the gear 158 axially, whereby the angular adjustment is produced by the teeth of the gears 158, 157. The cylinder 11 can be moved towards and away from the cylinder 12 by rotating nuts 181 on screwed rods 180 which are fixed with respect to cylinder 12.
Patent GB-686915-A (GB)
Title: Improvements in or relating to crystal diodes and triodes
Inventor: STARR ARTHUR TISSO
IPC: H01L21/288
Filed: 1950-06-09
Abstract: 686,915. Semi-conductor amplifiers. STANDARD TELEPHONES & CABLES, Ltd. June 1, 1951 [June 9, 1950; Aug. 25, 1950], Nos. 14429/50 and 21040/50. Class 40 (iv). [Also in Group XXXVI] An electric signal translating device comprises a disc or plate of semi-conductor which crystallizes in isotropic cubic lattice, having a base electrode of extended area, and a further electrode consisting of a metal film of area not less than 10<SP>-4</SP> sq. mm. and not greater than one sq. mm., which occupies a hole in a layer of insulation on the surface of the crystal. Fig. 1 shows a crystal diode comprising a block of semiconductor 1 consisting of silicon, germanium or lead sulphide covered by a layer of insulation 3, a hole in the layer 3 being filled with metal to form the rectifying contact. A layer 5 of silver or other metal is deposited to make contact with the electrode 4. The surface of the semi-conductor is plated to form base electrode 2. Compared with a point contact, the hole 4 has appreciable area lying between 10<SP>-4</SP> and 1 sq. mm. The characteristics of the rectifier can be modified by varying the area of the rectifying electrode, a larger area tending to reduce both forward and reverse resistance, but not in the same proportion. The " turnover voltage " (i.e. the point on the reverse characteristic at which instability occurs) is also affected by the hole size. A number of these diode rectifiers may be assembled in a pile with terminal washers, as is the practice with selenium or copper oxide rectifiers, to form bridge rectifiers or ring modulators. Terminal wires may be connected to the electrodes, or holders having spring contacts may be provided. More than one rectifying contact may be provided, as shown in Fig. 3, to form a crystal triode, and a further modification in Fig. 4 shows the combination of a cat's-whisker electrode 8 operatively associated with the rectifying contact 6. Additional rectifying contacts may be provided with the crystal triode arrangements as described in Specification 681,829. Donor or acceptor impurities may be added to the metal used for the rectifying electrodes, in conjunction with an electroforming process, to improve the current gain characteristic of crystal triodes as described in Specification 681,809, or gold may be used as described in Specification 686,907. The electrodes may be deposited by coating the crystal with prepared gelatine and photographing thereon an image of the electrodes, so that after development a stencil is formed through which the electrodes may be electro-plated on to the surface of the crystal. A brass or copper mounting block may be used to keep the device cool. Specification 686,948 also is referred to.
Patent GB-108585-A (GB)
Title: Improvements in Lock Nuts.
Inventor: PRESCOTT WILLIAM
IPC: F16B39/06
Filed: 1916-10-12
Abstract: 108,585. Prescott, W. Oct. 12, 1916. Locking nuts.-The nut a, Fig. 2, is locked by a headed key c fitting keyways in the bolt and nut. The head c<1> of the key lies in a radial slot in the face of the nut and is held in place by a second nut e, Fig. 4. A clove-tailed keyway d is cut down, cne pane of each nut to receive a key which is held in place by a plate h, screwed to the top of the nut e or by a screw passing through it into one of the nuts.
Patent GB-1188082-A (GB)
Title: Method of making Semiconductor Device and Semiconductor Device made thereby
IPC: H01L23/29
Filed: 1968-03-26
Abstract: 1,188,082. Semi-conductor devices. HITACHI Ltd. 26 March, 1968 [5 April, 1967], No. 14538/68. Heading H1K. Schottky barriers are formed in such a way that their edges are not exposed to contamination. In the production of silicon diodes an epitaxial layer 2a of high resistivity is formed on a low resistivity substrate la, the surface of the layer is etched, washed and dried, and an overall coating of molybdenum applied at a temperature below the eutectic temperature of Mo and Si. The layer is masked and etched to have islands 3a respectively corresponding to the barriers of several diodes. An overall coating 5a of silica is then deposited and holes opened therein over the centre of the molybdenum electrodes 3a. Electrode connections 7a are then formed by overall deposition and selective removal of gold. In a variant the electrode connections are made by plating a layer of nickel in the hole and applying a solder blob which seals the hole and extends on to the silica. The individual diodes are then cut from the substrate. Alternative semiconductors are Ge and A<SP>VII</SP>B<SP>V</SP> compounds such as GaAs. Alternative barrier metals are Cr, Ti, Ta and W. Alternative insulators are silicon nitride, silicon monoxide and alumina. Alternative electrodes metals are Al, Ag and Cu.