baber/WOPTO huggingface dataset:
Patent GB-856848-A (GB)
Title: Improvements in the production of glutamic acid and novel intermediates therefor
Filed: 1958-10-27
Abstract: A process for coverting 3-amino-cyclopentene into glutamic acid by oxidation with a chemical oxidising agent includes the steps of converting the 3-amino-cyclopentene, before the oxidation into an N-substituted -3-amino-cyclopentene by reaction with a reagent which will replace at least one of its amino hydrogen atoms by a substituent which is not subject to decomposition under the action of the oxidising agent and which is a saturated aliphatic carboxylic acid, an aromatic carboxylic acid or an amide forming derivative of such an acid and after the oxidation hydrolysing the product to glutamic acid, the process being characterised by the additional intermediate step of converting the N-substituted -3-amino-cyclopentene into the corresponding N-substituted -3-amino-cyclopentanol by a hydration reaction before the oxidation. The invention includes also the process of oxidising the N-substituted -3-amino-cyclopentanols to the corresponding N-substituted glutamic acid and the novel N-substituted -3-amino-cyclopentanols which are compounds of the general formula : <FORM:0856848/IV(b)/1> where X is <FORM:0856848/IV(b)/2> wherein R represents an alkyl or mononuclear aryl radical, R1 represents an alkylene or mononuclear arylene radical and R2 represents a radical obtained by removing two hydrogen atoms from an alkylene or arylene radical ; in all cases having no easily oxidisable substituents.  The hydration reaction may be carried out by dissolving the N-substituted -3-amino-cyclopentene in sulphuric acid of at least 85% concentration and adding the solution to an aqueous medium, preferably at - 5 to + 10 DEG C., in such a way that the sulphuric acid concentration of the aqueous medium after the addition is below 60%.  The oxidation step is preferably carried out with nitric acid and the hydrolysis of the N-substituted glutamic acid may be carried out, by the method described in Specification 806,798 which also discloses the N-substituted -3-amino-cyclopentenes.  Examples describe the preparation of N-(3-hydroxycyclopentyl)-phthalimide (and its p-nitrobenzoate), N-(3-hydroxycyclopentyl)- suc-cinimide and N, N1-bis-(3-hydroxycyclopentyl)-pyromellitide and the oxidation of the first mentioned compound to N-phthaloyl-glutamic acid and its hydrolysis to glutamic acid.  N, N1-bis-(3-hydroxycyclopentyl)- succinamide, N-(3-hydroxycyclopentyl) - acetamide and N - (3 - hydroxycyclopentyl)-benzamide may be similarly prepared and oxidised.
Patent GB-1324413-A (GB)
Title: Television receivers
IPC: H04N9/285
Filed: 1970-07-15
Abstract: 1324413 Cathode-ray tube circuits GTE SYLVANIA Inc 15 July 1970 [15 July 1969] 34408/70 Heading H4T A TV receiver comprises a c.r.t., deflection signal source 73, a toroidally wound deflection yoke connected to the source including first and second horizontal deflection windings 71, 69, connected in series, the first winding being associated with commencement of the scanning, one end of the first winding being connected to a constant potential reference level B + and one end of the second winding connected to the signal source 73, and a capacitor 75 shunting the first winding. The capacitor 75 inhibits "ringing" due to potential changes in the windings during retrace and initiation of a fresh line scan. Capacitors 63 and 54, in the horizontal and vertical winding circuit respectively, are of low impedances at the operative frequencies. Windings 71 and 69 may be wound in opposing circumferential directions of advancement and in substantially mirror-image relationship, and correspondingly then vertical windings 57, 55. At least the horizontal windings are in bankwound wire groups and the vertical deflection windings include first and second wire layers electrically connected by a sawtooth type connections, further details being referred to as disclosed in Specification 1,324,412. The opposing circumferential advancement of the windings effects neutralization of the charging of distributed capacitances of the respective vertical and horizontal windings, while the mirror image relationship, sawtooth and bankwound type connections assist in neutralizing magnetic and electrostatic cross-induction. Operating circuit, Fig. 1.-In scanning from left to right and from top to bottom the coil halves 57 and 71, Fig. 1, are associated with the starts of the vertical and horizontal scans respectively and are coupled by capacitors 54, 63 to fixed potential sources, whereas the opposite halves 55 and 69 are connected to the scanning waveform sources at Y<SP>11</SP> and 73; this arrangement reduces "ringing". The interleaving of the windings and the provision of a shunting capacitor 75 assists in draining undesired energy from the windings 57 and 71 associated with the starts of the scans.
Patent GB-487379-A (GB)
Title: Improvements in or relating to methods of producing waterproof fabrics permeable to air
IPC: D06M11/38
Filed: 1936-12-15
Abstract: 487,379. Waterproofing. TEXTILWERK HORN AKT.-GES. Dec. 15, 1936, No. 34462. Convention date, May 25. Addition to 427,686. [Class 140] The process of making light-weight air-permeable waterproof fabric described in the parent Specification is modified by using a Fabric of cotton, wool, silk, artificial silk or mixtures which has interstices between the warp and weft threads not larger than those of a cotton fabric made from 70's yarn and having 160 warp and weft threads per inch, so that the shrinking step is dispensed with. The process may be further modified by impregnating the fabric, after treatment with the water-repellent material, with a solution of an artificial resin, e.g. polyvinyl acetate in benzol or toluol, further impregnating with a water-repellent material, e.g. a paraffin solution or emulsion, and finally calendering at a temperature at which the artificial resin does not become sticky, e.g. 25‹ C., and at pressures from 200-300 kg. per sq. cm. The artificial resin solution may contain plasticizers such as paraffin oil or synthetic esters of high boiling point. The impregnation may be effected in a trough provided with guide rolls and if desired with means for tensioning the fabric. Specification 471,231 is referred to.
Patent GB-995709-A (GB)
Title: Improvements in or relating to synchronous generators
Inventor: STRAFUN JAKOV NEKHAMOVICH
IPC: H02P9/26
Filed: 1963-09-02
Abstract: 995,709. Synchronous generators. LENINGRADSKY FILIAL VSESOUZNOGO NAUCHNO ISSLEDOVATELSKOVO INSTITUTA ELEKTRO MEKHANIKI. Sept. 2, 1963, No. 34620/63. Heading H2A. In a synchronous generator 2 having automatic regulation of its excitation without dynamo-electric source and comprising power current transformers 4 connected in its stator output circuit and to its exciting winding 1, via a three-phase bridge circuit of rectifiers 3, together with a three-phase voltage transformer 8 connected to the generator output circuit, it is stated that the forcing ability of the excitation, under e.g. mains short-circuit conditions, is increased by the provision of controllable, e.g. ion rectifiers 7, connected in an antiparallel manner in series with each phase of the voltage transformer 8 and to the bridge circuit rectifiers 3. The latter may be watercooled semi-conductors, and saturable reactors 11 may be provided to extend the excitation range.
Patent GB-467670-A (GB)
Title: Improvements in aircraft
IPC: B64C1/00
Filed: 1935-12-14
Abstract: 467,670. Freight - carrying aircraft. GARDEN, A. D. Dec. 14, 1935, Nos. 34736/35, 35281/35, and 19833/36. [Class 4] An aircraft fuselage or body incorporates a platform adapted when the aircraft is at rest to lie in an inclined position with its lower end on or closely adjacent to the ground and forming a ramp or run-way for the loading of goods. In one form, Fig. 1, a fuselage 1 has a hold 3 of which the floor is constituted by a hinged platform 4 raised and lowered by hydraulic or other power means. Goods may be carried in standardized trucks 8. In another form, Fig. 2, a low-wing monoplane is provided with a broad shallow cantilever structure 1 provided with rails to form a loading run-way, and carrying a cabin 2 and a removable fairing 10 for the load. A turntable may be included in the run-way, access to which may be by a ramp such as 9 or by forming a part of the structure as a lift. A similar construction for a high-wing monoplane is described. Fig. 5 shows an arrangement similar to that of Fig. 2 in which a tiltable flap or ramp 9 is located between twin rudders 12. Fuselage constructions are described in which a single pair of longerons or two pairs of longerons are provided. The aeroplane may be employed as an ambulance.
Patent GB-870739-A (GB)
Title: Improvements in aeroplanes
Inventor: WALLIS BARNES NEVILLE
IPC: B64C3/38
Filed: 1958-10-30
Abstract: 870,739. Controlling aircraft. VICKERS AIRCRAFT HOLDINGS Ltd. Nov. 3, 1959 [Oct. 30, 1958], No. 34911 /58. Class 4. An aircraft, in which propulsion units mounted on the wings for the purpose of providing control of the aircraft in pitch, roll and yaw, and in which the units are mounted on the wings with capability of rotary movement about axes respectively parallel with the OY and OZ axes of the aircraft and wherein the wings are adjustable in sweep, is provided with an engine mounting on a wing comprising two alternative pivots, both having axes parallel to the OY axis of the aircraft, said axes being located at positions respectively adjacent the leading and trailing edges of the wing when swept forward, the arrangement being such that rotation of each engine unit for pitch or roll control takes place about one or other of said pivots, as selected, to permit such movement without interference between the wing and the engine. Each wing 18 is formed with aligned upper and lower bearing elements 16, 17 bored to receive stub-shafts 12, 13 pivotally secured at 101, 111 respectively to upper and lower engine-pods. 10, 11. Tubular collars 14, 15 are mounted on the bearing elements 16, 17 and each forms part of a beam 19 capable of rotation about the axis of.its respective bearing element. Each beam is connected at 20 to a jack 22 and at 21 to a jack 23, both jacks being connected to its appropriate engine pod. To control the aircraft in pitch or roll on upper jack 22 and lower jack 23 (or vice versa) are simultaneously extended, axial movement of the shafts 12, 13 in their respective bores permitting inclination of the engine pods without interference between the pods and the wing leading and trailing edges. A motor and gear-track system 25, 26 is provided to swing the engine pods to provide control of the aircraft in yaw. Specification 842,363 is referred to.
Patent GB-811626-A (GB)
Title: Improvements in and relating to token-operated distributing machines
IPC: G07F1/06
Filed: 1957-11-08
Abstract: 811,626. Tokens for token-feed apparatus. WHITEFIELD, H. and CHIANTELASSA, A. Nov. 8, 1957 [Nov. 10, 1956], No 34965/57. Class 27. A token for operating a goods-distributing machine is made so that its weight per unit volume is different at opposite ends of one of its principal axes. As shown, the token comprises two tapered and grooved interfitting parts 1, 2 treated so that the join lines b are not perceptible, the two parts being made of different materials of different weight. per unit volume or of the same materials that have been treated to have a differemt or varying weight along the axis XX. Alternatively, the token can be a single die casting, the casting process being arranged to vary the weight per unit volume at opposite ends of the token or the two units or a single unit can be provided with different numbers or sizes of holes at each end and be covered by a suitable coating. Mechanism operated by the token is described in Specification 813,899.
Patent GB-358780-A (GB)
Title: Improvements in crankless motor-compressors
IPC: F02B71/04
Filed: 1930-11-21
Abstract: 358,780. Direct-acting compressors. WIKTIEWICZ. R., 1, Ul. Kornela Ujejskiego, and WICINSKI, A., 2, Ul. Jozefa, both in Lw¾w, Poland. Nov. 21, 1930, No. 35168. [Class 8 (i).] A compressor comprises a stationary cylinder 1 in which air is compressed by a piston 2 by the action of internal combustion on the other side of the piston, and balance is maintained by pistons 3, 5 connected together by a rod 4 and forming the cylinder ends. These pistons are returned by springs 6, 7.
Patent GB-1390430-A (GB)
Title: Method of manufacturing biaxially stretched plastics films and an apparatus for carrying the method into effect
IPC: B29C48/10
Filed: 1972-07-27
Abstract: 1390430 Biaxially stretched films HORSENS PLASTIC AS (HORSENS PLASTICVAREFABRIK AS) 27 July 1972 [21 Aug 1971] 35196/72 Heading B5B Biaxially stretched films, which may be heatshrinkable are made from a tube of plastics film supplied by an extruder 1, a gaseous pressure medium being introduced into the interior of the tube in the first stage, e.g. through tube 6, and the inflated tube being then compressed locally by means of two sets of squeezing rollers 4 and 5 provided between the extruder nozzle 2 and the take-up roller 11 and running at different peripheral speeds, so that there are formed an intermediate bubble 10 and two outer bubbles 7 and 9, the set of squeezing rollers 5 remote from the annular nozzle being passed towardx the squeezing roller set 4 closer to the said nozzle or conversely, directly after the three bubbles have been produced, so that the gas pressure in the intermediate bubble increases and the bubble is distended in the transverse direction. As shown, the squeezing roller sets are arranged one above the other, and preferably the upper set of squeezing rollers is passed such a distance downwards that the pressure in the intermediate bubble is brought up to 14 p.s.i. (1À5 kilo pond/cm.<SP>2</SP>). An alternative apparatus (Fig. 6, not shown), is adapted for horizontal extrusion. Where polyolefin film is used the upper set of squeezing rollers is passed such a distance downwards that the ratio of stretching of the film in the transverse direction will be the same as in the longitudinal direction, preferably 5 : 3. The movement of the squeezing rollers may be effected by means of a separate conveyer unit 15 including a platform 16 containing a rectangular opening 17 in which the squeezing roller set is mounted. The unit 15 may be moved along the four screwthreaded rods 18 by the operation of of the chain wheel 27 driven by motor 28, which engages the endless chain 26 which is connected to four chain wheels 25 mounted on the under side of the platform 16. The stresses imparted to the film by stretching may be such that subsequent reheating to about 75 C. causes both longitudinal and transverse shrinking.
Patent GB-1432845-A (GB)
Title: Chain link for tyre antiskid or protection chains
IPC: C22C38/04
Filed: 1973-07-24
Abstract: 1432845 Tyre chains EISEN UND DRAHTWERK ERLAU AG 24 July 1973 [25 July 1972] 35226/73 Heading B7C [Also in Division C7] A link for a tyre anti-skid or protective chain is formed of cast steel having a carbon content in excess of 1% and a manganese content of 5-18%, and also having a nickel content of 0À2-2À4% and/or a molybdenum content of 0À2-2À4%. The steel may have been heat-treated at 450-1050‹ C. The link may be shaped as shown in Fig. 1, having apertures 10, 11 for the reception of other links, a circular cross-section web 9 separating the apertures, and groundcontacting faces (4), 5 (see also Fig. 2, not shown) which meet at an obtuse angle, the groundcontacting region and the side portions 8 of the link being thicker than the remainder of the link.
Patent GB-202264-A (GB)
Title: Process for the preparation of a carburetting fuel mixture for internal combustion engines
IPC: C10L1/02
Filed: 1922-12-28
Abstract: Motor spirit is obtained by adding acetal, paraldehyde, or both, with or without acetaldehyde, to alcohol, to refined petroleum alone or with petrol, to the 80-340 DEG  C. fraction distilled from tar from coal, schiste, lignite, peat, or wood, or to other hydrocarbons. Examples include the use of 60 parts of alcohol or petroleum with 40 parts of paraldehyde, and of 65 vols. of coal-tar distillate with 20 vols. of paraldehyde, 13 vols. of acetal, and 2 vols. of acetaldehyde.
Patent GB-1006658-A (GB)
Title: Improvements in or relating to probe devices
IPC: F23M11/04
Filed: 1961-09-29
Abstract: 1,006,658. Flame detectors. M. CLAUSEN, [trading as FIRMA DONFOSS VED. Ing M. CLAUSEN] Sept. 29,1961 [Oct. 1, 1960], No. 35328/61. Heading G1A. A probe for a photo-electric flame detector includes a photo-electric element screened from direct radiation by an opaque wall formed, in part at least, as a radiation-optical transducer. The transducer may be as described in Specification 994,639 and when located near a flame either emits radiation or transmits or reflects radiation originating in the flame, the radiation being that to which the photo-electric element is sensitive. The transducer may be in the form of a tube having a closed end exposed to the flame and the photo-electric element at the other end, or may form an end cap or end plate 20 for a separate tube 19 housing the element 21, Fig. 4. Holes 35 allow for the escape of gases if the transducer breaks. The tube 19 preferably emits no radiation at flame temperature. The transducer, if in the form of a cap, may be of homispherical, conical or chamfered shape. In other embodiments hooks 32, Fig. 8, at the end of a tube 31 support a conical or disc shaped transducer large enough to prevent direct transmission along the tube.
Patent GB-809477-A (GB)
Title: Improvements relating to split-ring lock washers
Inventor: O'CONNOR JOHN BROWN
IPC: F16B39/26
Filed: 1956-11-19
Abstract: 809,477. Locking nuts &c. ILLINOIS TOOL WORKS. Nov. 19, 1956, No. 35337/56. Class 89(1) A split-ring lock-washer 20, Fig. 3, has a substantially uniform cross-section throughout its circumference and is twisted so that one edge, e.g., inner-edge 20a, is disposed in a plane substantially normal to the washer-axis, while a second edge, e.g. outer edge 28 is helical and lies wholly to one side of edge 20a. The washer may be assembled on a screw or a nut 12, Fig. 2, and is retained thereon by a flange 24 engaged by a flange 26 on the nut. The end-surfaces of the washer may have sharp projections which bite into the nut bearing-surface 16 and worksurface.
Patent GB-467975-A (GB)
Title: Apparatus for the pneumatic removal of chippings in turning work-pieces with diamond tools
IPC: B23Q11/00
Filed: 1935-12-21
Abstract: 467,975. Removing dust &c. on generation. WINTER, H., WINTER, E., WINTER, G., WINTER, W., and WINTER, E., (trading as WINTER & SOHN, E.). Dec. 21, 1935, No. 35458. Convention date, Dec. 29, 1934. [Class 8 (ii)] [Also in Group XXII] Pneumatic means for removing cuttings when turning, comprises a box-like hood 1, fitting closely around a toolholder 4, strengthened and kept in position by a bolt 14. An opening 6 Fig. 3, is provided at the front of the hood through which the tool 3 projects, and an extension 5 of this opening is provided for chips. These are drawn away through the conduit 2 or may be blown away by compressed air supplied either through a pipe 10, Fig. 5 or through a passage 12 in the tool holder. The compressed air may be employed alone or in combination with suction means. The hood is provided with a transparent sliding cover 7.
Patent GB-864546-A (GB)
Title: Bowling pin spotting machine control mechanism
Inventor: DUMAS ROGER EDMUND
IPC: A63D5/08
Filed: 1958-11-05
Abstract: 864,546. Skittle alteys. AMERICAN MACHINE & FOUNDRY CO. Nov. 5, 1958, No. 35554/58. Drawings to Specification. Class 132(2). The Specification describes an electric control system for a skittle alley causing it to operate on the following cycle. When the first ball-bowled enters the pit it actuates a switch which causes a sweep to descend to the alley bed. After a time delay to allow wobbling pins to come to rest, the pin table descends, engages any pins left standing and lifts them, whereupon the sweep removes dead wood into the pit and returns along the alley bed. The table then descends to respot the pins and rises again and the sweep rises to its rest position, a light being lit to indicate the second ball may be bowled. When the second ball enters the pit, the sweep removes all pins into the pit and withdraws again and the table spots a new set of pins, the sweep then rising again and a light is lit indicating that the first ball of the next game may be played. If the first ball of a game should knock down all the pins, this is detected by the first descent of the table and the sweep is caused to clear the pins from the alley and the table spots a new set of pins ready for a new game. If a foul be committed on the first ball, the sweep clears all the pins from the alley and the table spots a new set, the second ball cycle being as before. If a foul be committed on the second ball, the normal cycle takes place except that an indication of a foul is given. The pins are raised from the pit by a continuously rotating annular elevator provided at its upper part with a gate opened automatically when a distributer needs pins to feed to the spotting table. The sequence is mainly controlled by a stepper relay having several banks of contacts and by switches actuated by cams driven by the motors driving the sweep and the table. Safety cut-outs are provided. Specification 820,655 and U.S.A. Specifications 2,683,602, 2,767,983, 2,767,984 and 2,821,395 are referred to.
Patent GB-413962-A (GB)
Title: Improvements in or relating to multiple way cocks, more particularly adapted for machines for the rapid preparation of coffee
IPC: B67D1/00
Filed: 1933-12-18
Abstract: 413,962. Multiple way cocks. SOC. ANON. LA VICTORIA ARDUINO, 81, Via Bardonecchia, Turin, Italy. Dec. 18, 1933, No. 35625. Convention date, March 30. [Class 135.] In a multiple-way cock comprising three superposed chambers 3<1>, 2<1>, 41 and an axially movable rod 5 with a neck 51 of reduced diameter whereby the end chambers 31, 41 may alternately communicate with the central chamber 2<1>, one, 4<1>, of the end chambers is formed by an annular projection or shoulder 1<1> in the bore of the cock body and two packing- rings 6, 12 pressed against this shoulder, whilst the other chambers 2<1>, 3<1> are formed by packing rings 6, 7, 9 and apertured spacing sleeves 8, 10 alternately fitted on the rod 5 and pressed against the shoulder 1<1> by a threaded plug 11. The cock is particularly suitable for mounting between a unit for the rapid preparation of coffee and a boiler M, a passage 2 in the cock body leading to the coffee-infusion unit and passages 3, 4 being respectively connected to hot water and steam supplies from the boiler. The rod 5 is moved axially by rotation of a handle 19 by means of a quick pitch screw-andnut device 17, 15, the nut portion 15 being held non-rotatably by pins 16. A sleeve 14 engages a flange on the nut 15 so as to hold a gland 13 in place.