baber/WOPTO huggingface dataset:
Patent GB-735902-A (GB)
Title: Chlorination process
Inventor: LACEY RICHARD NORMAN
IPC: C07C51/00
Filed: 1953-02-12
Abstract: Chloroacetyl chloride is obtained by the reaction between chlorine and a molar excess of ketene at 100-200 DEG  C. Hydrochloric acid may be used with the chlorine, the ketene still being in large excess. Acetyl chloride is obtained in some quantity.  In examples the reaction is described using varying quantities of reagents in accordance with the required proportions, preferably an excess of ketene of 50 per cent or more, and varying temperatures in the range, to give good yields of chloroacetyl chloride and acetyl chloride, with small quantities of dichloroacetyl chloride.  A gaseous diluent may be added.  The Provisional Specification describes a process in which the chlorine is used in excess.
Patent GB-1494704-A (GB)
Title: Isolation of glucagon
IPC: C07K14/605
Filed: 1975-01-29
Abstract: 1494704 Glucagon ELI LILLY & CO 29 Jan 1975 3923/75 Heading C3H A process of insulin purification wherein glucagon hormone is recovered comprises: (1) treating an aqueous solution containing 1 to 100 mg./ml. of pork or beef insulin and is free of divalent ions known to crystallize with insulin with alkali metal or ammonium ions so as to provide a pH of 7À2 to 10À0 and a cation concentration of 0À2 to 1À0 M thereby inducing insulin crystallization, (2) isolating glucagon containing protein from the crystallization supernatant, (3) separating glucagon from the other proteins and (4) purifying the glucagon. Step (2) may be effected by isoelectric precipitation at pH 4À2-6À6 using HCl as pH adjuster in the presence of ethanol. Alternatively step (2) may be effected by ionexchange chromatography or by isoelectric precipitation and ion - exchange chromatography. Between steps (2) and (3) the glucagoncontaining protein may be subjected to hyperglycemic factor fractionation in HCl/phenol solution by addition of NaCl and NaOH to pH 9 followed by HCl to pH 7À5 (Example 1). Step (3) may be effected by glucagon fibril formation from an aqueous medium containing HCl, phenol and EDTA by addition of an ammonium sulphate. Step (4) may be effected by recrystallization at pH 4À5 to 8À5 and a glucagon concentration of 2 to 10 mg./ml.
Patent GB-1022682-A (GB)
Title: Improvements in or relating to gas-blast electric circuit-breakers
Inventor: NOBLE RONALD ARTHUR GEORGE
IPC: H01H33/70
Filed: 1962-02-02
Abstract: 1,022,682. Gas blast switches. ENGLISH ELECTRIC CO. Ltd. Feb. 1, 1963 [Feb. 2, 1962], No. 4003/62. Heading H2B. A gas blast circuit-breaker is provided with a circular nozzle contact 11 into which gas flows during the blast action, and a frusto-conical shaped moving contact 13 having a flattened apex and a plurality of slots 16 formed into the contact between an annular contact making area and the flattened apex so that in the closed position the slots are wholely or mainly within the nozzle 12 and during an interruption gas flows along the slots to the apex of the moving contact. An arcing electrode 15 is situated in the nozzle 12. The slots 16 may lie in radial planes or be skewed.
Patent GB-1260744-A (GB)
Title: Falsework for casting concrete structures
Inventor: NORLANDER LARS AKE WILHELM
IPC: E04G11/46
Filed: 1969-01-24
Abstract: 1,260,744. Floor shuttering. L. A. W. NORLANDER. 24 Jan., 1969 [24 Jan., 1968], No. 4O94/69. Heading E1S. Inverted U-sectioned metal or reinforced plastics shutters 10 for ribbed concrete floors are stiffened along their longitudinal flanges 11 by continuous or intermittent flanges 15 on temporary support beams 13. The support beams 13 may each comprise a lower plank of which the flanges are integral parts, or to which the flanges are fixed, and if required an upper plank 16 (Fig. 2, not shown) which sits between the shuttering flanges 11. Alternatively the flanges may be removably attached to the support beam (Fig. 3, not shown), the flanges being formed by generally Z-sectioned metal members which are held to the central portion of the support beam by separate members nailed or screwed thereto. The support beam can be a short member, several being used for each rib of the floor, and can comprise two longitudinal portions, each with an upstanding flange, and transversely connected at intervals (Figs. 4 and 5, not shown). In the embodiment of Fig. 6 (not shown), channel-sectioned flangeforming members 28, 29 are screwed to a plank-like support beam 31.
Patent GB-494387-A (GB)
Title: Improvements in or relating to the coupling of vehicles
IPC: B62D13/04
Filed: 1938-02-09
Abstract: 494,387. Vehicle couplings and steering mechanism. SOC. CENTRALE DE CHEMINS DE FER ET D'ENTREPRISES. Feb. 9, 1938, No. 4105. Convention date, Nov. 8, 1937. [Class 103 (v)] [Also in Group XXXI] A coupling-device between tractor and trailer vehicles enabling a number of vehicles to be formed into a train and steered comprises a straight bar 30 interconnecting the rear axle of the tractor with the front axle of the trailer and pivoting with respect to both axles about horizontal and vertical pivots, and linkages 16, 15, 27 for controlling the pivotal movements of the wheels 14, 12 on the front and rear axles respectively. In the arrangement shown the bar 30 is pivotally connected by a horizontal bolt 34 to a forked bracket 18, which in turn pivots about a vertical pin 19 mounted in a socket 20 secured to the front axle 10 and comprising inner and outer sleeves 22, 23 with interposed resilient material 21. Links 16 are connected to the bracket 18 to effect a steering of the front wheels 14, while a rod 27 pivoted to a laterally projecting lug 26 on the bracket 18 is connected to a similar forked bracket 17 on the rear axle 9 and, through links 15, swivels the rear wheels 12 in the opposite direction to the front wheels 14.
Patent GB-211690-A (GB)
Title: Improvements in automatically operated electric motor starters and controllers
IPC: H01H51/06
Filed: 1923-02-13
Abstract: 211,690. Brookhirst Switchgear, Ltd., and Livesey, A. C. Feb. 13, 1923. Controllers, actuating; controllers, multiple rocking bar. - In automatically operated motor-starters, a contact bar carried on two swinging links moves parallel to itself and successively meets parallel faces of a row of yielding plunger contacts. The operating stroke is retarded by an adjustable magnetic brake. The construction shown comprises two movable contact-bars A, H respectively coacting with two stepped rows of carbon plungers which control resistances in the motor armature and field circuits. Each bar is carried on two swinging links, and both bars are linked to an operating lever E attached to the core of a solenoid G, so that one upstroke of the core first gradually short-circuits armature resistance and afterwards gradually inserts field resistance. The lever E is geared to an eddy current brake P adjustable by the setting of an arm p<2>. At the top of the solenoid stroke, a switch S reduces the current through the coils.
Patent GB-672826-A (GB)
Title: Improvements in reduction furnaces
IPC: F27B5/04
Filed: 1950-02-17
Abstract: In a tube muffle furnace for the reduction of metallic oxides &c. to powdered metals (see Group XII) the muffle tube z may be made of stainless steels having the following compositions: Chromium 16 per cent, Nickel 12 per cent, Molybdenum 3 per cent, or Chromium 16 per cent, Nickel 12 per cent, Copper 2 per cent, and rollers provided in the cool portion of the tube for supporting the charge containers may be made of an alloy of the following composition: Nickel 66 per cent, Molybdenum 25 per cent, Copper 8 per cent.  Specification 670,900 is referred to.
Patent GB-330505-A (GB)
Title: Improvements in or relating to tone-arms for gramophones
IPC: G11B3/00
Filed: 1929-02-08
Abstract: 330,505. Gillibrand, C. G. Feb. 8, 1929. Tone-arms, construction of; tone-arm joints.- A tone-arm, of steadily increasing circular cross section throughout, comprises a fixed portion c mainly parallel to the rear of the cabinet and bent upon itself, one end being secured centrally of the motor-board by a base-plate b and the other end being connected by a joint e, preferably arranged near a corner of the cabinet, to a movable portion d carrying the sound-box. Further, the bends throughout are formed of straight reflecting surfaces a of circular cross section. The base-plate shown is of triangular form to facilitate, the correct positioning of the tone arm, one side f of the base-plate being placed against the rear of the cabinet and thei apex x lying on the centre line leading from the side f to the centre of the turntable.
Patent GB-794902-A (GB)
Title: Improvements in or relating to braked turbines
Inventor: ANDERSON NORMAN
IPC: F01D25/22
Filed: 1953-02-16
Abstract: 794,902. Turbines; centrifugal compressors. GODFREY (HANWORTH), Ltd., [formerly GODFREY & PARTNERS (HOLDINGS), Ltd., Sir G.]. May 17, 1954. [Feb. 16, 1953], No. 4228/53. Classes 110 (1) and 110 (3). [Also in Group XXXIV] A shaft 13 carrying a compressor rotor 11 at one end and a turbine rotor 12 at the other end has an enlarged central portion 18 supported in fluid bearings. The bearings comprise a pair of cylindrical members 21 and annular end plates 22 which may be of carbon or molybdenum disulphide treated steel or chromium-plated steel. Circumferentially spaced feed holes 23 connected by channels 24 are provided in the members 21 and similar holes 23 connected.by a channel 26 are provided in the end bearing plates 22. High-pressure air fed through a pipe 27 to a reservoir 28 passes through channels 29, 30 to the channels 24, 26 and hence to the bearing surfaces. Exhaust to atmosphere is by way of a central space 32. Alternatively the air pressure may be induced by the rotation of the machine by providing volute grooves on the plates 22. Sealing grooves 36 are supplied with air under pressure through channels 35. The plates 22 may be mounted in a self-aligning manner by means of intermediate plates 39 and pairs of balls 41a located at 90 degrees to each other. In a modification, the enlarged central portion of the shaft is made equal in diameter to that of the compressor and turbine rotors and the thrust surfaces are located outwardly of the rotors. In another modification the shaft portion between the rotors is of constant diameter which is small relatively to the diameter of the rotors.
Patent GB-650470-A (GB)
Title: Improved means for counterbalancing a pivoted arm or member
IPC: B66C23/72
Filed: 1948-02-13
Abstract: 650,470. Balancing devices ; jib cranes; load - handling apparatus. PRODUCTION FACILITIES (FILMS), Ltd., RAWNSLEY, D. W., GREEN, E. R., and GILL, J. G. Feb. 13, 1948, No. 4267. [Classes 78 (ii), 78 (iii) and 78 (iv)] An unbalanced arm 1 (Fig. 2), which may be the jib of a crane is secured to a shaft 2 and is balanced by a spring 3 connected at one end by a cable 10 to a sector 11 on the arm 1 and at the other end to a pin 4 on a crank 5 secured to a shaft 6 carrying a sprocket 7 connected by a chain 8 to a sprocket 9 on the shaft 2. Thus the chain exerts balancing forces directly on the sector 11 and indirectly through the chain 8 on the shaft 2. As shown, the crank 5 is horizontal when the arm 1 is vertical. The sprockets 7, 9 may be of different sizes and the sector 11 may be specially shaped. The spring 3 may comprise a series of compounded springs which become effective at various points during the displacement of the arm 1 and the tension spring 3 may be replaced by a compression spring or springs acting through a suitable harness upon pull rods. Fig. 6 shows the application of the invention to means for supporting a kinematograph screen 13 as in Specification 650,461. The arm 1 supported on a shaft 2 carries a sector (not shown) behind the rack-wheel 17 to which sector is secured a cable 10 connected to a spring 3 secured at 4 to a crank 5 on a shaft 6 connected by a chain 8 passing round a guide sprocket 30 and round sprockets 7, 9 on the shaft 2. The remaining description of Fig. 6 is included in Specification 650,461, which is referred to.
Patent GB-557686-A (GB)
Title: Improvements in and relating to ammunition boxes and means for delivering cartridges therefrom to machine guns and the like
IPC: F41A9/79
Filed: 1938-11-09
Abstract: 557,686. Machine guns; cartridge-belt boxes. MARTIN, J. and MARTIN-BAKER AIRCRAFT CO., Ltd. Nov. 9, 1938, No. 4382/40. Divided out of 557,685. [Classes 9 (i) and 92 (ii)] A cartridge-belt box in which the belt is piled so that axes of the cartridges are transverse to the gun's axis is provided at the top with an attachment 19 for guiding the cartridges to the correct feed position with their axes parallel to the breech axis. The invention is shown applied to a belt box as described in Specification 557,685 the guide 19 being fitted at one end over the box exit 17b, the other end having lugs 20 to engage the gun. At a bend in the guide a roller 21 is provided for the bullet ends of the cartridges.
Patent GB-845439-A (GB)
Title: Method of treating glass surfaces
IPC: C03C21/00
Filed: 1957-02-08
Abstract: 845,439. Reducing alkalinity of interior glass surfaces. OWENS-ILLINOIS GLASS CO. Feb. 8, 1957 [May 31, 1956], No. 4388/57. Addition to 835,916. Drawings to Specification. Class 56. The alkalinity of the interior surface of a glass -container, such as an ampoule, is reduced by introducing therein acidic and oxidizing reagents in the presence of moisture. The reagents may be sulphur dioxide and hydrogen peroxide or olygon and are preferably introduced in this order. The moisture may be introduced with the reagents or separately. The operation is preferably performed between the forming machine and the annealing lehr.
Patent GB-998527-A (GB)
Title: Carton with recessed center retaining member for cylindrical objects
IPC: B65D71/00
Filed: 1963-02-04
Abstract: 998,527. Can carrier; packages. CONTAINER CORPORATION OF AMERICA. Feb. 4, 1963 [Feb. 27, 1962], No. 4394/63. Headings B8C and B8P. A sleeve type carton for holding two parallel, opposing rows of cylindrical objects, is formed from a unitary blank of foldable paperboard and comprises opposing pairs of end and side walls 10, 18 and 14 respectively which enclose the ends and sides of the articles, one of said end walls 18 having a V-shaped longitudinally disposed, centre-retaining member 20 extending into the carton between the two rows of articles and said member including a pair of outwardlydiverging strips 26 inclined relative to the wall 18 and having longitudinally spaced openings 36 to receive the ends of the articles. In the two embodiments illustrated in Figs. 1 and 6, the retaining member is formed from extensions 22, 26 on the bottom end wall panels 18, extensions 22 being adhered together and extensions 26 having openings 36 and in the case of Fig. 6, the extension 26 has further extensions 40 between the indentations 28 which are adhered to the base panel 18. In the embodiment illustrated in Fig. 13, the centre retaining member is formed from extensions 70, 76, 78 on only one of the panels 18, the openings 36 being formed by arc cut from the extension 76. Triangular flaps 34 in the walls 10, 18 are cut along 2 sides and are pressed inwards to engage with the articles and holes 32 are cut to facilitate handling of the package. In a modification, the centre retaining member 20 may extend downwardly from co-planar panels of the top wall.
Patent GB-511158-A (GB)
Title: Improvements in or relating to locks
IPC: E05C3/24
Filed: 1938-02-14
Abstract: 511,158. Door latches. DIMMOCK, L. Feb. 14, 1938, No. 4539. [Class 44] A door latch comprises a bell-crank 38 pivoted in a recess in the door and adapted to be blocked behind the keeper 36 by a rotatable or sliding spring bolt 25 movable to releasing position by a spindle 26. When the bolt is so moved, a spring turns the latch out of engagement with the keeper. The bolt may be operated from a distance, and may be moved to blocking position by a spring 30 acting on a rod 28, pivoted to the bolt. The latch may be held in the release position by a catch 42 on the casing, the pivot being mounted in a slot 18 to allow the latch to be moved bodily by the bolt to release it from 42. The bolt may have a slot or rib to engage a rib or slot on the latch.
Patent GB-163448-A (GB)
Title: Improvements in crystal detectors of electric currents
IPC: H01L29/00
Filed: 1920-02-14
Abstract: 163,448. Dowsett, H. M. Feb. 14, 1920. Crystal detectors. - The surface connection of a crystal detector is made by directly welding to the crystal 1 a piece of steel, tungsten, brass, copper or other suitable metal 2, for example, by dipping the crystal into molten or semi-molten metal. The metal should preferably have a melting-point equal to or greater than the temperature at which the crystal changes its physical or chemical nature. Solder 3 may cover the crystal to any depth up to a very small distance from the point contact.
Patent GB-872325-A (GB)
Title: Improvements in hydraulically actuated diaphragm pumps
IPC: F04B43/107
Filed: 1959-02-10
Abstract: 872,325. Diaphragm pumps. JERSEY PRODUCTION RESEARCH CO. Feb. 10, 1959 [March 19, 1958], No. 4583/59. Class 102(1). A diaphragm pump actuated by liquid oscillated by a piston and cylinder device includes a valve 46 actuated in one direction by a diaphragm cover plate 33 and in the other by a flange 65 on a guide rod 62 secured to the cover plate 33, when excess movement of the diaphragm in one or other direction takes place due to an excess or shortage of actuating liquid, whereby actuating liquid either flows to or from a pressurised reservoir. The pump described comprises two diaphragm chambers connected to an actuating cylinder on opposite sides of the piston and is a mud pump.
Patent GB-713690-A (GB)
Title: Improvements in and relating to blades for turbines and similar machines
IPC: F01D5/18
Filed: 1952-02-21
Abstract: 713,690. Turbine and compressor blades. ESCHER WYSS AKT.-GES. Feb. 21, 1952 [Feb. 23, 1951], No. 4635/52. Class 110(3) [Also in Group XXII] A method of making turbine and compressor blades from sheet metal is characterized in that a sheet metal development of the blade, which may be in one or more pieces, is given the required blade twist whilst an edge of the profile is still open and whereafter said edge is closed by welding to form a hollow turbine blade. A hollow blade fashioned from sheet metal prior to twisting is shown in Fig. 1 the outlet edge A of the blade being left open. After twisting the edge A is welded e.g. by spot welding, roll welding or soldering to form the finished blade as shown in Fig. 3. The method is applicable to the substantially straight or slightly curved blade forms of axial compressors.
Patent GB-768755-A (GB)
Title: Preparation of silicone oils
IPC: C08G77/00
Filed: 1955-02-16
Abstract: Polysiloxane oils are prepared by condensing a mixture of organosilanes of R/Si ratio between 1.5 and 2 and containing equivalent quantities of hydrolysable halogen and alkoxy groups until more than half, e.g. 85 per cent or more of the halogen has been eliminated as alkyl halide, and end-blocking the product by reaction with a quantity of a triorganosilanol equivalent to the remaining halogen and alkoxy content.  A solvent, e.g. toluene, may be used during the condensation, preferably during the concluding stages only.  The viscosity of the final product depends on (a) the initial R/Si ratio; (b) the degree of condensation; (c) the concentration of reactants in the condensation mixture.  In Example (1) a methylchloroalkoxysilane mixture of CH3:Si ratio 1.73 was refluxed in the presence of ferric chloride until 74 per cent of the chlorine had been removed.  The product was diluted with toluene and heated further until only 4 per cent chlorine remained.  After cooling, trimethylsilanol was added and allowed to react in the cold.  The final product was washed and distilled at 20 mm. pressure and up to 150 DEG  C. to yield an oil of 1360 cP. viscosity in 83 per cent yield.  Similar procedures eliminating all but 1.8 per cent and 8 per cent chlorine gave oils of viscosities 4300 cP. and 60 cP. respectively.  Examples (2), (3) and (4) describe similar procedures for obtaining oils of varying viscosities by varying the CH3:Si ratio, the degree of dilution with toluene in the later stages and the amount of chlorine eliminated.  Specification 700,101 is referred to.
Patent GB-602800-A (GB)
Title: Improved clothes washing machine
IPC: D06F37/24
Filed: 1945-02-24
Abstract: 602,800. Washing-machines. CONSTANTINE, W. W. (GENERAL MOTORS CORPORATION). Feb. 24,1945, No. 4670. [Class 138(ii)] [Also in Group II] In a washing machine comprising a basket 15 rotatable about a substantially vertical axis and having limited lateral movement when carrying an eccentric load, the vibrations caused by spinning such a load are absorbed by a non-rotatable resiliently mounted mass 24. As shown, the basket consists of inner and outer perforated and imperforated parts 34, 33, and is supported on a wall 12 by a rubber &c., collar 14 which also supports, by means of a flange 14a, a power casing 16 housing a motor 19 and transmission mechanism 18 adapted to reciprocate a shaft 21 carrying an agitator 20 and to rotate the basket through a shaft 17. The weight 24, in the form of a ring surrounding the casing 16, is supported thereon by spring rods 25 or coiled or rubber springs to constitute a vibratory system, the number of vibrations per second of which is aubstantially equal to the number of revolutions per second of the basket at a predetermined constant speed of rotation. The machine is stabilized by another ring-like weight 23 secured to the bottom of the basket. To limit maximum lateral deflection, a rubber snubber 31 rotatably mounted on a stationary shaft 32 at the bottom of the casing 16, is adapted to engage a cup 30 on the frame 10. In operation, the agitator 20 is first oscillated vertically by the shaft 21 to clean the clothes in the basket, after which the basket is rotated causing liquid to be discharged centrifugally.
Patent GB-295556-A (GB)
Title: Improvements in or relating to sewing machines
IPC: D05B57/02
Filed: 1928-02-14
Abstract: 295,556. Seifert, P. Feb. 14, 1928. Chain - stitching.- In a machine for s e w i n g together pieces of material, by chain stitches, for dyeing, bleaching or similar operations, the looper operating mechanism comprises two cams on the driving shaft, one for oscillating the looper and the other for imparting the needleavoiding movement. The looper 6 is carried by an L-shaped carrier having arms 10 and 11, rigidly mounted on the spring-pressed shaft 8. The arms carry anti-friction balls 13, 12. A lever 15 is mounted to rotate, but not slides, on the shaft 8 and is provided with an antifriction ball 16 in the same plane, perpendicular to the axis of the shaft, as the ball 12. The looper driving shaft 7 has two cams 21, 22, the cam 21 engaging the ball 13 to oscillate the looper and the cam 22 engaging the ball 16 to rock the lever 15 and cause its recess 17 to coact with the tooth 18 on the fixed bracket 19 to give the sideways movement to the shaft and looper. The cam 22 also engages the ball 12 to keep the ball 13 on the surface of the cam 21.
Patent GB-990908-A (GB)
Title: Improvements in covers for meat loaf moulds
IPC: A22C7/00
Filed: 1964-02-04
Abstract: 990,908. Spring-pressed covers for meat loaf moulds. MEAT PACKERS EQUIPMENT CO. Feb. 4, 1964 [Nov. 12, 1963], No. 4700/64. Heading A2U. [Also in Division A4] A cover for the open end of a meat loaf mould comprises a pressure plate 5 which is a sliding fit in the open end of the mould 1, catch members 6 at opposite sides of the plate and having ratchet teeth 8 for releasable engagement with side flanges 3 of the mould, and leaf springs 10, 16 which extend across the plate and have one end hinged at 9, 14 to one of the catch members and the other end fixed to the plate, the springs being stressed when the catch members are engaged with the mould to press the plate on the contents of the mould. The leaf-spring 16 consists of two narrower leaves fixed to a cross-bar 15 and straddling the wider leaf 10, the end parts 19, 13 of the leaves being welded to the plate and the leaf springs exerting equal pressure on the contents when the flanges 3 are engaged by corresponding notches.