baber/WOPTO huggingface dataset:
Patent GB-182334-A (GB)
Title: Improvements in or in connection with the letter slits or openings in doors and the like
IPC: A47G29/126
Filed: 1921-07-14
Abstract: 182,334. Robinson, R. J. July 14, 1921. Letter-boxes.- A device for closing the letter-slit or other opening in the door or wall of a house &c., comprises two cylinders, one rotatable within the other, the outer cylinder B having two axial openings b, b<1> and being fixed to the door so that one opening b coincides with the slit in the door. The inner cylinder D has two corresponding openings d, d<1> and the openings in the cylinders are brought into register by rotating the inner cylinder by a handle F. A spring E, fitted between the ends of the cylinders, returns the inner cylinder to its normal position, so that it closes the opening b in the outer cylinder. An electric bell is caused to ring when the device is opened by contact of a projection d<2>, carried by the inner cylinder, with a metal strip G fixed to the door. In a modification the outer cylinder B is replaced by two short arcs of the cylinder, one on each side of the slit in the door, the inner cylinder being replaced by a cylindrical arc, which in the normal position spans the opening between the two outer arcs.
Patent GB-793405-A (GB)
Title: Process for preparing phthalamic acid esters
IPC: C07C233/12
Filed: 1956-06-20
Abstract: Monoesters of a phthalamic acid are prepared by reacting a monoester of a phthaloyl mono halide with a primary aliphatic amine in the presence of a divalent metal hydroxide.  The reaction is preferably carried out in the presence of a hydrocarbon solvent at 70 DEG -250 DEG  F., the reaction mixture is then cooled to about 70 DEG -150 DEG F., and water washed until the washings are free from halide ions. Prior to water washing the mixture may be washed with, e.g., dilute hydrochloric acid, and e.g. dilute aqueous ammonium hydroxide.  The water and oil layer are separated and the phthalamic acid ester either recovered by distillation to remove the solvent, or by precipitation.  Suitable esters are those containing straight or branch chain, saturated or unsaturated hydrocarbon radicals, e.g. those derived from the following alcohols: methyl, ethyl, isopropyl, propyl, butyl, t.-butyl, amyl, isoamyl, hexyl, heptyl, decyl, lauryl, cetyl, octadecyl, and triacontyl.  Suitable amines are, e.g., methyl, ethyl, butyl, hexyl, octyl, decyl, dodecyl, tetradecyl, hexadecyl, octadecyl, eicosyl, docosyl.  Hydrocarbon solvents which may be used are, e.g. benzene, toluene, xylene, heptane, octane, decane, dodecane, petroleum lubricating oils, esters of sebacic acid and isopropyl ether.  Examples are given of the preparation of methyl terephthalamate by reacting a mixture of hexadecylamine, octadecylamine and octadecanylamine with methyl terephthaloyl chloride in the presence of calcium hydroxide and toluene, and uses of the terephthalamate as grease thickening agents.ALSO:Metal salts formed by saponification of mono-methyl esters of terephthalamic acids (which esters are prepared by heating together a mono-methyl ester of a phthaloyl monohalide and a primary aliphatic amine in the presence of a divalent metal hydroxide) are used as grease thickening agents.  Examples are given of lubricating greases consisting of a sodium N-alkyl terephthalamate (wherein the alkyl group is derived from a commercial mixture of amines comprising hexadecylamine, octadecylamine and octadecenylamine) and mineral oil, with or without trimethyl dihydroquinoline polymer and an amine of general formula: <FORM:0793405/III/1> where R is a soyabean fatty acid radical and x + y = 5.  The sodium N-alkyl terephthalamate is formed by the action of sodium hydroxide on the corresponding mono-methyl N-alkyl terephthalamate in the presence of mineral oil.
Patent GB-147176-A (GB)
Title: Attachment for operating foot accelerators of automobiles
IPC: B60K26/02
Filed: 1920-07-07
Abstract: 147,176. Williams, A. A. April 10, 1919, [Convention date]. Void [Published under Sect. 91 of the Act]. Pedals and pedal-levers, mounting. - A pedalmounting for controlling the accelerator lever of a motor-vehicle comprises a base-plate 1 fixed to the floor and having an upstanding flange 1<a> to which is pivoted a plate adapted to fit the driver's shoe. The sole of the shoe rests on the circular front end of the footplate which contacts with the accelerator lever 4<a>, while the heel rests on a depressed portion 3 provided with a rear projection 3<e>. The heel of a ladv's shoe fits into a recess 3<c> in the plate 3. The shank 4 of the footplate is made narrow to avoid fouling the brake lever, and is positioned so as to be clear of the instep of the shoe. The front end of the footplate comprises a metal contact-plate, 5 covered by a plate 5a of non-conducting material and faced by a non-slipping surface 5b such as rubber. An adjustable stop 6 limits the depression of the heel .end of the footplate.
Patent GB-611405-A (GB)
Title: Improvements in or relating to rotors for multi-stage axial flow compressors and turbines
IPC: F01D5/06
Filed: 1944-10-06
Abstract: 611,405. Turbine rotors. POWER JETS (RESEARCH & DEVELOPMENT), Ltd., and WHITEHEAD, L. T. Oct. 6, 1944, No. 19246. [Class 110 (iii)] A rotor for a multi-stage axial flow compressor or turbine consisting of a plurality of co-axial solid discs directly interconnected at their rims so that the latter form the equivalent of a hollow drum, has axial grooves cut in the drum-like assembly to receive the blading and associated spacers which extend across the point between the discs to prevent relative rotation between them. The discs 1, Fig. 2, are provided with rim flanges 2, 3 which are secured together by mating screw threads 4 to form a drum-like assembly. Mounted in axial grooves 6 cut in this assembly are blades 5 with serrated roots 5a and blade spacers 7 which bridge the screwed joints between adjacent discs. In a modification, the screw threads 4 form only a part of the flanges 2, 3, the remaining part being used to form a well fitting spigot and socket connection between the rims. The spigot and socket may be tapered so that when the discs are screwed together a tight joint is formed. To prevent the screwed joint working loose the flange of a cooler disc is arranged to overlap that of a hotter disc.
Patent GB-317593-A (GB)
Title: Holder or presser for collapsible tubes or receptacles
IPC: B65D35/28
Filed: 1928-07-03
Abstract: 317,593. Evans, E. G. July 3, 1928. Tubes or containers, collapsable.-In a device for expressing the contents of collapsable tubes, or containers, the tube N, Fig. 7, is held in a box-like holder C, and the contents are expressed bv means of a roller H, which is moved by a, strip K of flexible material, fastened at one end E to the holder, and at the other end to an axle D, which can be rotated by means of a milled wheel L. The roller H may be slotted to receive the sealed end of the tube, and is preferably attached to one end of a flexible strip J, Fig. 6, the other end of which is fastened to the holder. When the tube is in position, the strip K passes around the sealed end of the tube, which is gripped between the roller and the inner strip J. The holder C is provided with a lid or cover M, Fig. 3, and has an opening A to allow the head of the tube to protrude. An inclined support F is provided for the shoulder of the tube, which is held against movement by a flexible strip B.
Patent GB-978826-A (GB)
Title: Improvements in or relating to containers for fragile articles
Inventor: ATTACHED STANLEY BALL DRAWINGS
IPC: B65D5/496
Filed: 1962-06-01
Abstract: 978,826. Bottle containers. HUGH STEPHENSON & SONS Ltd. April 25, 1963 [June 1, 1962], No. 19338/62. Heading B8P. Each layer of article-receiving means in a bottle container is formed of two partitions which both have an equal number of compartments 3 and 5. The partitions are each built up from a blank of double-backed corrugated paper shown in Fig. 1, and the compartments are alternately large 3 and small 5. Due to the difference in height of the walls 2 and 4 of the partitions and also to the walls 2 being of height less than the diameter of the bottles, the layers and bottles may be " nested " together. The bottles in the top layer are protected by the walls 2 and 4 ending above the level of the bottles. In a modification, the two partitions are formed from a single blank and the abutting side walls of adjacent compartments are stapled together. The material used may also be cardboard or fibreboard.
Patent GB-732749-A (GB)
Title: Pulse generator for electric fences
IPC: H05C1/04
Filed: 1953-07-13
Abstract: 732,749. Supplying electric fences. CHRISTENSEN, F., [trading as REOFON]. July 13, 1953 [July 31, 1952; March 31, 1953], No. 19409/53. Class 38 (4). [Also in Group XL (c), An A.C. operated pulse generator for energizing a fence comprises a transformer through the primary winding of which the A.C. current is periodically caused to flow to generate a high voltage pulse across the secondary winding to which the fence is connected, the time of commencement and ending of the current flow being dependent upon the instantaneous value of the A.C. voltage. Fig. 1 shows an A.C. operated pulse generator in which the thyratron 5 conducts when the instantaneous value of the A.C. voltage supplied at terminals 3, 4 reaches a pre-determined value and capacitor 11 is charged by the voltage produced across the rectifier bridge 10 so that when the instantaneous A.C. voltage of the supply falls below a given value thyratron 5 is extinguished. During the period when tube 5 conducts a high voltage pulse is produced across the transformer secondary winding 2 which is connected with the fence to be energised. Capacitor 11 slowly discharges through resistor 12 so that when the instantaneous value of the A.C. voltage again reaches a pre-determined value tube 5 fires and the cycle is repeated. If necessary a small A.C. voltage may be introduced at 13 to cause tube 5 to strike. The transformer is constructed to have only a small difference between its idling and short circuit currents and fuse 14 interrupts the current in winding 1 if owing to a defect the current continues substantially beyond one half cycle. In a modification, shown in Fig. 2, the pulse generator comprises an A.C: operated blocking oscillator using a thyratron 5 so that the rectifier bridge of Fig. 1 is dispensed with.
Patent GB-335575-A (GB)
Title: Improvements in or relating to apparatus for playing race games
IPC: A63F9/14
Filed: 1929-06-24
Abstract: 335,575. Evans, F. A. A. June 24, 1929. Race games, me. chanical. - In a race game apparatus of the kind employing a vibrated track, the men or pieces are provided with teeth or projections which engage the material of the track in such a way that the pieces are moved along the track in one direction or the other according to the head-on direction of the pieces for the time being. The track comprises a sheet a, Fig. 1<a>, of fabric attached to end strips b. One strip is secured by springs s and a string q to a fixed body and the other strip is connected to a lever k pivoted on a pin l. The upper end of the lever carries a roller o which is maintained, by the pull of the springs s, against a toothed wheel g. By rotating the wheel g by means of a handle, the track is given a to-and-fro vibration substantially equal in opposite directions. The racing pieces are provided on their bases with teeth t, as shown in Fig. 5, to engage the material of the track so that the pieces are carried forward in the head-on direction for the time being. An additional tooth t<1> and a projection z may be provided on the piece adapted to co-operate with a rail above the track so that when the projection z strikes the rail the piece is turned and proceeds in the opposite direction. In a modified apparatus, Fig. 2, the track is circular. The vibration may be imparted by a cam instead of a toothed wheel. The apparatus may be used for advertising or display purposes. Specification 323,467 is referred to.
Patent GB-1125554-A (GB)
Title: Rolling apparatus
IPC: B21B1/22
Filed: 1965-09-06
Abstract: 1,125,554. Rolling; stretching. GENERAL ELECTRIC CO. 6 Sept., 1965 [28 Sept., 1964], No. 19445/68. Divided out of 1,125,553. Headings B3E and B3M. Apparatus, for reducing the thickness of strip S by the simultaneous application of rolling pressure and longitudinal tension, includes two spaced contact rolls 10 and 11 adjacent which is positioned a bend roll 12, the strip being passed around the three rolls under tension, with the profile of the bend roll being arranged to create a greater rolling pressure on the edges of the strip than at its centre. The desired profile is obtained either by using a roll 12 whose diameter is smaller at its centre than ends, or by exerting a force on the ends of the roll to bend it. In the latter case a yoke 21 is used which is urged upwardly, Fig. 2, relative to the positionally fixed rolls 10 and 11. Alternatively, thin supplementary strips may be attached to the strip S along its edges, the strips being removed after rolling of the strip S.
Patent GB-985598-A (GB)
Title: Improvements in or relating to antibiotics and their preparation
IPC: C12P1/06
Filed: 1963-05-16
Abstract: A new antibiotic designated 9865 RP is produced by cultivating aerobically Streptomyces 8899 (NRRL 3046) or Streptomyces 31723 (NRRL 3045) or a 9865 RP productive mutant thereof in a nutrient medium containing assimilable sources of carbon, nitrogen, and mineral salts until substantial antibiotic activity is produced by the micro-organism in the medium, and recovering the antibiotic from the medium.  9865 RP is an amorphous orange-red powder soluble in chloroform and dichloroethane, moderately soluble in water acidified to pH 3-4, very slightly soluble in alcohols and practically insoluble in water, benzene and diethyl ether. It contains carbon, hydrogen, oxygen and nitrogen in the proportions C = 61.0%, H = 6.2%, O = 28.15%, N = 2.65%.  Three constituents, of which 13057 RP and 13213 RP are described, the third being designated 13330 RP, may be isolated from 9865 RP by chromatography or counter-current distribution.  13057 RP is a base which forms acid addition salts, the free base being an amorphous red powder soluble in alcohols and chloroform, very slightly soluble in water and ketones and practically insoluble in benzene and diethyl ether.  It contains carbon, hydrogen, oxygen and nitrogen in the proportions C = 59.8%, H = 5.85%, N = 2.3%, O = 29.45% and melts at 155-170 DEG  C. (with decomposition).  13213 RP is an amorphous orange-red powder soluble in chloroform and dimethylformamide, moderately soluble in water acidified to pH 3-4, very slightly soluble in alcohols and practically insoluble in water, benzene and diethyl ether.  It contains carbon, hydrogen and nitrogen in the proportions C = 58.6%, H = 6.2%, N = 2.2% and also contains oxygen.  The Specification contains particulars of the ultra-violet and infra-red spectra of 9865 RP, 13057 RP, 13057 RP hydrochloride, 13213 RP and the aglycone of 9865 RP.  A pharmaceutical composition comprises at least one of the antibiotics 9865 RP, 13057 RP and 13213 RP or non-toxic acid addition salt thereof, in association with a compatible pharmacologically acceptable carrier.
Patent GB-516629-A (GB)
Title: Improvements in or relating to circuit arrangements for the remote control of motors in telegraph systems
IPC: H04L12/12
Filed: 1938-07-01
Abstract: 516,629. Telegraph exchange systems. STANDARD TELEPHONES & CABLES, Ltd. (Haigh, L. B.). July 1, 1938, No. 19572. [Class 40 (iii)] A circuit for starting a driving motor M is closed by contacts of a relay Pr, which is operated over a line L, and remains closed independently of those contacts, and a circuit for stopping the motor is closed by other contacts of the relay. The movement of the armature of the polarized relay Pr to the front contact energizes a relay Msr, which connects the motor to the mains AC and also short circuits the front contact of the relay Pr. Accidental opening of the front contact by the armature of the relay Pr does not stop the motor, but, as soon as the armature moves to its back contact, the circuit of the relay Msr is broken and the motor stopped. The relay Msr derives its energy from the secondary of a transformer T, the primary of which is connected to the mains.
Patent GB-1018154-A (GB)
Title: Air and water jet utilizing suction lifts for the elevation of submerged solids
IPC: E02F3/90
Filed: 1964-05-11
Abstract: 1,018,154. Suction dredging equipment. O. T. BERGSTROM. May 11, 1964 [May 15, 1963; Dec. 18, 1963], No. 19589/64. Heading E1F. Lift in a dredger suction pipe (1) is induced by the use of both water and air jets (2, 5) directed into the pipe in a direction away from the intake of the pipe. An auger (15) may be associated with the suction pipe.
Patent GB-838186-A (GB)
Title: Improved variable-speed power transmission mechanism
IPC: F16H47/08
Filed: 1958-06-19
Abstract: 838,186. Variable-speed gear. GENERAL MOTORS CORPORATION. June 19, 1958 [July 22, 1957], No. 19613/58. Class 80 (2). First and second turbines T 1 , T 2  of an hydrodymamic torque converter are connected respectively to an output-mounted planet-carrier 18 and free ring gear 24 of a planet gear having also a sun 26 connected to input 10 and to the impeller P, and the blade angles (all specified) are such that, with increasing output speed, the torque delivered by the first turbine T 1  reduces from a maximum value at stall, whilst that of the second turbine T 2  increases. The one-way mounted reactor S has variable incidence blades. Performance curves are given.
Patent GB-568496-A (GB)
Title: Improvements relating to reciprocating pumps
IPC: F04B9/04
Filed: 1943-11-24
Abstract: 568, 496. Reciprocating pumps. TANGYES, Ltd., and TANGYE, C. G. Nov. 24, 1943, No. 19635. [Class 102 (i)] In a reciprocating pump with one or more plungers, one end o of each plunger a is engaged by one end of an adjacently pivoted arm n to which is pivoted a slipper p having a concave surface to engage a rotary eccentric j. The suction strokes of the plunger a may be effected by the direct action of a compression spring, or, as shown, the head o may be engaged by the bifurcated end of a double-arm lever q pivoted on the shaft m of the arm n, the other end of the lever q being connected to a helical spring s. The pump support f is closed by a cover forming a suction reservoir with an inlet h.
Patent GB-315304-A (GB)
IPC: D06C19/00
Filed: 1929-06-26
Abstract: 315,304. Monforts, J., (Assignee of Monforts, A., [Firm of]). July 11, 1928, [Convention date]. Yarns, treating with liquid. - Yarn, thread, string, cord, line, and the like, such as are made of Manilla, Java, Alve, Sisal, and the like, are smoothed and dressed, by treatment with vegetable milk containing adhesive matter in a state of microscopically fine division, the liquid portion being then evaporated by hot chamber, heated drum or the like, or coagulated, the coagulation being accelerated by treatment with alum or sodium chloride. When dry, the yarn is rubbed with a saponaceous or fatty mineral powder such as talcum, preferably in one direction only so that all projecting fibres are laid over in the same direction. A suitable vegetable milk containing caoutchouc or caoutchouc-like substance is obtainable from ficus elastica, urceolacea, castilloa, sapolaceae, euphorbia, urticacea, and apocynacea.
Patent GB-824729-A (GB)
Title: Improvements in or relating to methods for manufacturing looped yarn
IPC: D02G1/16
Filed: 1957-06-21
Abstract: 824,729. Finishing yarns; woven fabrics. ALGEMENE KUNSTZIJDE UNIE N.V. June 21, 1957 [Aug. 2, 1956], No. 19700/57. Classes 120(3) and 142(4) A composite yam formed by intertwisting (300-1000 turns per metre) two or more twisted or non-twisted yarns composed respectively of continuous filaments of artificial or synthetic material having different shrinking properties e.g. polyamide and polyacrylonitrile, cellulose acetate and viscose, polyamide and polyvinyl chloride, or fully shrunk and unshrunk yarns of the same material, is subjected to a looping or bulking process as described in Specification 767,835 i.e. the yarn is propelled through a confined zone by a high velocity gas stream and, after leaving such zone, the direction of movement of the yarn is changed and its speed decreased, no further twist being applied to the yarn. The composite yarn, before looping, may be treated with fats, waxes, lacquers, oil or oil emulsion to reduce twist-liveliness and/or electrostatic charge. Crepe fabric is produced by weaving the looped yarn in the warp and/or weft e.g. looped polyamide yarn in the weft and smooth polyamide yarn in the warp, in which one or more oppositely twisted composite yarns may alternate, washing the fabric e.g. in relaxed condition over the entire fabric width at a temperature of 95‹-100‹C., and drying under tension or relaxed. The fabric may be stabilized by heat treatment at a temperature higher than that employed in the washing.
Patent GB-479831-A (GB)
Title: Safety guard fence for roads and the like
IPC: E01F15/04
Filed: 1937-07-16
Abstract: 479,831. Fencing. RASMUSSEN, S. A. July 16, 1937, No. 19735. Convention date, July 20, 1936. [Class 45] In a reinforced-concrete guard fence for roads, the fence rail 1 is curved backwardly from the road and is retained by bolts 3, 4 on concrete posts 2. Upon the wheel 7, of a vehicle, striking the rail its course is corrected, the front part of the tyre running along the rail while the rear part engages on the lower edge of the rail which exerts a braking action on the wheel. The rail is constructed in sections shaped to conform to any curve on a road or to surround a tree, and may be coated with a cement solution of a bright colour so that it may be easily seen.
Patent GB-705865-A (GB)
Title: Reaping machine
IPC: A01D37/00
Filed: 1951-08-21
Abstract: 705,865. Reaper-binders. FORSCHUNGSANSTALT FUR LANDWIRTSCHAFT. Aug. 21, 1951 [Aug. 21, 1950], No. 19740/51. Class 6 (3) The cutter a, the reel, the conveying canvas, and binding mechanism f of a reaping machine are arranged at the rear of a tractor a having two seats c, d facing opposite directions, the arrangement being such that the tractor moves in reverse when in operation and forwardly for transport from field to field. Clutch and brake pedals m, n adjacent the seat d, which is situated above a wing, are suitably connected to the normal pedals q, s and the usual hand levers g for controlling the mechanisms are arranged near the seat d. The drive e for the cutters is at the side of the machine opposite to the binder. The binder device may be mounted to be folded upwards to reduce the width of the machine for transport.