baber/WOPTO huggingface dataset:
Patent GB-633001-A (GB)
Title: Improvements in or relating to acrylonitrile and the production thereof
Filed: 1947-03-06
Abstract: Acrylonitrile is prepared by adding liquid ethylene cyanhydrin to an alkali-forming metal salt of an organic acid as catalyst, the ratio of cyanhydrin to catalyst being less than 1 : 1 by weight.  The cyanhydrin is added at a rate which never greatly exceeds the rate of formation of acrylonitrile, which is distilled off with water, condensed, and recovered by stratification and distillation. Alkali-forming metal salts of organic acids are defined as including alkali, alkaline earth, and magnesium salts such as sodium, potassium, magnesium, and barium formates, acetates, stearates, oxalates, succinates, phthalates, and benzoates.  Dehydration temperatures are generally about 160-275, preferably 200-240 DEG  C. Anti-foaming agents such as polyethylene glycols of molecular weight 200-6000, and silicones, may be added.  In examples, a reaction vessel fitted with stirrer, dropping funnel, and distillation column, contains the heated catalyst, which is potassium acetate, sodium formate, acetate or stearate, and ethylene cyanhydrin is added dropwise at various feed rates.  The Specification as open to inspection under Sect. 91 comprises the use of other dehydrating catalysts, such as alkaline-reacting inorganic compounds, e.g. calcium or magnesium oxide, calcium hydroxide, sodium or potassium carbonate, trisodium phosphate, and sodium borate.  Additional examples use calcium hydroxide and magnesium oxide.  This subject-matter does not appear in the Specification as accepted.
Patent GB-402736-A (GB)
Title: Golf balls and method of making same
IPC: A63B37/00
Filed: 1932-03-03
Abstract: 402,736. Golf balls. DAVIS, H. K. B., Montclaire Hotel, Lexington Avenue, and MACY, J. N., Ossining, both in New York, U.S.A. March 3, 1932, No. 6481. Void [Abridged as open to inspection under Sect. 91 of the Acts, March 4, 1932]. [Class 132 (ii).] In a method of making a golf ball, fluid is injected into the centre of of the ball to expand the core and increase the tension of the cover. The pressure may be increased by forcing white lead or other fluid into the fluid-filled core 11 by means of a piston 9 and hollow needle 7, the ball being held in a recessed casting 1. A gauge 15 indicates the pressure attained. The increased pressure expands the rubber windings 14 and increases the tension of the outer cover. To avoid injurious effect on the rubber windings whilst moulding the outer cover thereon, and to avoid substantial adhesion between the two, the hemispherical sections of the cover are preheated in order to reduce the time required for the moulding process.
Patent GB-294454-A (GB)
Title: Improvements in or relating to punching or perforating machines for paper, cardboard and the like
IPC: B26F1/14
Filed: 1928-03-01
Abstract: 294,454. Adler, M., Simon, O., and Kahle, E., (trading as Kahle, E.). March 1, 1928. Reciprocating- punch machines.- A hardened die 12, co-operating with a row of thin simultaneously-reciprocated punches 17, is held in a groove in a supporting bar 10 removably dovetailed into the frame 16.
Patent GB-433157-A (GB)
Title: Improvements in or relating to artificial teeth
IPC: A61C13/00
Filed: 1934-03-01
Abstract: 433,157. Artificial teeth. HEYDON, F. R., 17, Bodenham Road, Northfield, and HEYDON, R., 9, Periera Road, Harborne, both in Birmingham. March 1, 1934, No. 6551. [Class 81 (ii)] A metal backing for flat-back artificial teeth comprises a front plate which is slotted to engage an anchor device or pins projecting from the tooth, and a rear anatomically shaped palatal plate. The plastic material of the denture fills the space between the two plates. In the form shown a pressed rustless steel strip as shown in Fig. 1 is bent at the flat portion 1 to the form shown in Fig. 6 and the parts 5, 6 are spot welded together. The front portion is formed with flat prongs 2 and an angular central prong 3 which may be flattened or bent to adjust the width of the slots. The rear portion 4 has a straight or bent tongue 8 to be embedded in the denture. When applied to a tooth the parts 5, 6, are cut to the shape and swaged over the incisal edge of the tooth as shown in Fig. 8. In a modification the lower parts 5, 6 of the backing are omitted.
Patent GB-178270-A (GB)
Title: Improvements relating to duck bill and heater guards of looms for weaving
IPC: D03D49/68
Filed: 1921-02-28
Abstract: 178,270. Holden, W. H., and Westall, A. Feb. 28, 1921. Guards.-In a loom, a duck-bill and heater guard permanently attached to the heaterbracket is provided with a clip C to engage the heater. The clip is secured to a vulcanized fibre, thin metal, or other U-shaped guard A provided with outwardly-turned ends a and secured to a leather or raw-hide flexible strip B, which is attached to the heater-bracket or spring. The guard may be recessed at a<1> to allow the heater to occupy a more central position between the vertical edges of the guard.
Patent GB-765724-A (GB)
Title: Improvements in or relating to electric circuit breakers or switches
IPC: H01H9/28
Filed: 1955-03-08
Abstract: 765,724. Releasable fastenings. WESTING- HOUSE ELECTRIC INTERNATIONAL CO. March 8, 1955 [March 19, 1954], No. 6768/55. Class 44. [Also in Group XXXVII] A locking device, suitable for an electric switch which has a handle which projects through a slot in the casing and is movable to " on " and " off positions, comprises a solid member (Fig. 3) apertured at 29 to fit over the handle 21 and having a nose-piece 35 which projects into the slot 23 and engages its end wall, thereby " wedging " the handle in one of its positions. The device has a longitudinal aperture 39, 43, the inner portion of which (39) is tapped to receive a set-screw 41 which secures the device to the handle. A transverse aperture 37 is provided through which a padlock may be inserted, thereby rendering the setscrew inaccessible to unauthorized persons. The device is reversible and may be used for locking in either the " on " or " off " positions.
Patent GB-121423-A (GB)
Title: Improvements relating to Carburettors of Internal Combustion Engines.
Inventor: WESLAKE HENRY JOHN
IPC: F02M11/02
Filed: 1918-04-22
Abstract: 121,423. Weslake, H. J., and Weslake, H. April 22, 1918. Spray carburettors.-The outlet from the casing a is controlled by an iris diaphragm j, the opening in which is adjacent and controls a fuel-slot d<2> in a transverse end d<1> of a T-shaped nozzle d, which is mounted on a screwed plug c having radial fuel passages c<1>. The width of the slot d<2> is varied by an adjustable plate e, the control edge of which is of such form that the width of the fuel slot increases towards the ends. The iris diaphragm comprises a leaf-holding ring g and an actuating ring g' located in enlargements of the casing sections a, a<3>. The diaphragm is actuated by a handle h<1> secured to a ring h which is flanged at h<2> to prevent entry of air. The diaphragm may be actuated from a distance and an indicator provided to show the extent of its opening. The fuel orifice may be controlled by a screwed pin valve, the transverse end d<1> being dispensed with.
Patent GB-525856-A (GB)
Title: Improvements in and relating to locomotive boiler fireboxes
IPC: F22B13/14
Filed: 1939-03-02
Abstract: 525,856. Locomotive fireboxes. BARKER, G. G. (Locomotive Firebox Co.). March 2, 1939, No. 6814. [Class 51 (i)] [Also in Group XIII] A water chamber in a locomotive firebox has an upwardly arched tubular transverse lower part 35 opening through the firebox side sheets, and spaced tubular upper parts 36 opening through the crown sheet. A number of chambers spaced apart one behind the other increase in size towards the front of the firebox and support brickwork 41 forming an arch. A chamber 34 of similar construction may be provided in the combustion space beyond the firebox.
Patent GB-1334328-A (GB)
Title: Method and apparatus for synthesizing a hologram
IPC: G03H1/30
Filed: 1972-02-14
Abstract: 1334328 Holography BENDIX CORP 14 Feb 1972 [19 Feb 1971] 6833/72 Heading G2J Holograms are synthesized by moving two mutually coherent sources of radiation sequentially in a predetermined number of positions to provide in superimposition a plurality of interference patterns each representative of a point of a scene. A laser beam in split to give an object beam 14 and reference beam 12, both of which are moved to predetermined positions by a computer 48. The object beam is moved in the x, y coordinate positions by acousto-optic deflectors 44, 46. The beam falls on a diffusion screen 26 where it forms an effective point source 29. Pockels cell 57 and analyser 53 compensate for any frequency shift. The reference beam passes to a Piezoelectric cylinder 54 mounting a lens 36 where it forms a point source 38 or movement along the z axis. The hologram is recorded at 42. The intensities of the two beams are controlled by a Pockel cell 64 and analyser 62. Cell 64 also blocks all light as the arrangement acts to change the positions of point sources 29, 38. In a second embodiment the hologram is formed on a photochromic material 71 using ultra-violet light. Visible light is used to give almost immediate reconstruction of an image, a screen 84 absorbing the ultra-violet light from the construction beams. In this embodiment the reference beam is first deflected along the y axis by an acousto-optic deflector 68 which makes the beam incident upon one of a plurality of fibre light guides arranged in an L-shape 70. Those fibres with an entry point furthest up the y axis give an output furthest from the record medium 71. In a further embodiment the movement of the reference beam is controlled by an acousto-optic deflector and a mirror. Fig. 4 (not shown). The halograms are recorded on a self-developing film, which is moved from a "write" position to a "read" position.
Patent GB-314916-A (GB)
Title: Improvements in or relating to apparatus for the continuous chemical, heat or other treatment of materials
IPC: B01J19/20
Filed: 1928-03-05
Abstract: 314,916. Hayward, E. March 5, 1928. Screw conveyers.-In apparatus comprising a horizontally disposed or inclined pressure chamber a and helical or equivalent conveying means g, the latter, which may consist of sections interengaging through clutch means g<1>, is adapted to be inserted into and to rest upon the lower part of the chamber and to be driven at both ends, or as shown at one end only, bv means of a shaft h extending through a, stuffing box h<1> and adapted as by means of interengaging clutch ports h<2>, g<1> to engage with and drive the conveyer. Engagement between the various sections of the conveyer may be by means of ratchet teeth or dogs; alternatively interengaging screw threaded parts may be provided. A distance piece i may be fitted at one end of the chamber when the drive is from one end only. Specifications 392,642, [Class 1 (i), Chemical processes &c.], and 295,975, [Class 1 (iii), Oxides &c., Metallic], are referred to.
Patent GB-1412566-A (GB)
Title: Apparatus for introducing articles to be wrapped in a fold box
IPC: B65B9/06
Filed: 1974-02-15
Abstract: 1412566 Wrapping SIG SCHWEIZERISCHE INDUSTRIE-GES 15 Feb 1974 [16 Feb 1973] 6924/74 Heading B8C Non-rigid articles 6 advanced by drivers 4 are guided into a fold box 2 by a holding down device 14 provided with an element 17 which advances the articles at a speed greater than that of the drivers 4. The device 14 may comprise a spring strip with a wheel 17 on either side or a pair of strips separated by a single wheel 17. Alternatively the element may comprise a feed belt. A plastics film 7 may be folded by the fold box into a tube around the articles, or each article may push a rectangular portion of film into the box to fold it into a U-shape with ploughs folding the film against the sides of the article and a fold and glueing device sealing the rear of the wrapper.
Patent GB-923806-A (GB)
Title: Improvements in drills and like tools
Inventor: TAYLOR CECIL ARTHUR
IPC: B23Q13/00
Filed: 1961-02-24
Abstract: 923,806. Drills. RAWLPLUG CO. Ltd. Feb. 12, 1962 [Feb. 24, 1961], No. 6935/61. Class 83 (3). [Also in Group XXIII] A drill comprises an open-ended sleeve 2 which can be positioned to fit over the cutting tip 3 without the need for fastening elements and can be shifted along the shank, 4 to act as a depth stop. Preferably, the sleeves for all drills of one diameter are made in the same colour. Further, the sleeves may be made with different external shapes or markings to indicate the type of work for which the drill is intended. The sleeve can be made of plastics material, rubber or spring metal.
Patent GB-272586-A (GB)
Title: Improvements in or relating to gramophones and like machines
IPC: G11B25/04
Filed: 1926-03-12
Abstract: 272,586. Clifton, W. E., and Cliftophone, Ltd. March 12, 1926. Cases with internal horns.-A portable gramophone of the kind comprising a removable-unit assemblage of motor-board, motor, turntable, tone-arm and horn, has the horn inlet 9 arranged at one corner of the motor-board 1 and the outlet 7 along a side adjacent that corner of the board 1, so that the horn 7 encircles the motor 2 in a plane substantially parallel to the motor-board.
Patent GB-1065838-A (GB)
Title: Methods of producing friction elements
IPC: C21D8/02
Filed: 1966-02-17
Abstract: A vehicle brake drum or clutch plate is made by cold forming a steel blank which has previously been annealed to convert at least 75% of the cementite content of the steel to spheroidal form. The steel includes 0.6 - 0.88% combined carbon and is initially pearlitic in structure and in the form of rolled sheet stock.  In an example, SAE 1080 steel strip having 0.80% carbon content and of 0.58 cm thickness is heated at just below the transition temperature of 732 DEG C. until the desired amount of cementite is spheroidized.
Patent GB-237317-A (GB)
Title: Improvements in or relating to electric controllers of the liquid type
IPC: H01C10/02
Filed: 1924-03-18
Abstract: 237,317. West &. Co., Ltd., A., and Breeze, V. March 18, 1924. Controllers, liquid.-The electrolyte of a controller is circulated continuously by a pump 11. passing through a valve 12 and an earthenware inlet 10, through the electrodes 4, 5, into a cooling chamber 8, and thence by a discharge 14 to a cooling sump, from which it is drawn by the pump 11. The electrode 5 is movable by means of a rod 6. In a modification, tubes carrying a cooling medium are immersed in the chamber 8, from which the electrolyte passes direct to the inlet of the pump 11. A reversing valve may be placed between the pump 11 and the controller so as to reverse the direction of flow of electrolyte through the latter, or a valve may be arranged so that thermic circulation is instituted when the pump is out of action.
Patent GB-371110-A (GB)
Title: Improvements in and relating to bed settees and the like
IPC: A47C17/22
Filed: 1931-03-06
Abstract: 371,110. Bed settees. GREAVES, F. A., Amherst Works, Northwold Road, Clapton, London.-(Seng Co. ; 1450, Drayton Street, Lincoln Park Station, Chicago, U.S.A.) March 6, 1931, No. 7082. [Class 52 (ii).] In a bed settee or foldable spring mattress frame therefor, foldable supporting means for the seat when in the normal position, are associated with adjacent hinged sections-of the frame. The foldable frame, comprising four hinged sections 5 .. 8, is secured to the settee frame by hook members on plates 22 and by hooks 18 engaging slots 17 and carries the seat 9 by means of links 23, 24 hinged to the seat and to sections 8, 6 respectively, the links 23 having extensions 25 which act as a support for the bed when in the extended position. The seat is also connected to the brackets 10 by links 13 .. 16, and links 12 which connect a section 7 and the brackets, are also connected to the plates 22 by springs 21. The supporting links 31, 32 are pivoted together and to the sections 5, 7 of the frame, and when the bed settee is in the folded seat position these links are erected so that they form a support for the seat 9, links 31 being horizontal and'32 vertical. A back-rest 34 held by links 35, 36 covers the support 26 when the settee is folded. Specification 167,813, [Class 52 (ii), Furniture for sitting &o. upon], is referred to.
Patent GB-1040937-A (GB)
Title: Device for detecting breaks in the sheaths of nuclear reactors
IPC: G21C17/04
Filed: 1963-02-21
Abstract: A fault in the sheath 5 of a fuel element 4 housed in the vertical coolant channel 1 of a nuclear reactor is detected by introducing a scrubbing gas, e.g. helium, into the upper part of the channel 1 to contact the cooling liquid, e.g. heavy water, which flows upwards in the direction of arrows f1, and withdrawing the gas from the channel 1 to test for entrained fission products.  In one embodiment (Fig. 1 not shown), the scrubbing as is injected through tubing 10 into the heavy water at 9 above the sheath 5 where it becomes charged with any gaseous fission products present due to a break in the sheath 5.  The heavy water containing the gas passes through fins 11 which cause it to rotate, the gases moving radially inwards and entering a chamber 12 in the direction of arrows f3 through an annular deflector 13 and being discharged through a pipe 14 towards a radioactivity measuring device.  The small amount of water carried along with the gas settles in the bottom of the chamber 12, rejoining the channel 1 through apertures 15.  The water leaves the channel 1 through apertures 7 and a surrounding annular space 8 to rejoin the body of moderating water 2 in the direction of arrows f2.  In a second embodiment (Fig. 2, not shown) heavy water flows up the channel 1 in the direction of arrows f1 and arrives at a membrane 20 where part of the water passes through openings 21 and the remainder ascends a tube 22, overflowing at the upper end 23 in the direction of arrows f3 to drop down along baffle plates 24 in the direction of arrows f4.  The scrubbing gas is taken from the top of the reactor vessel 3 by means of a tube 25 and flows in the direction of arrows f5 along the baffle plates 24 becoming thoroughly mixed with the heavy water and charged with any gaseous fission products present, finally being sucked out of the upper portion 26 of the channel 1 through openings 27 in a tube 28 in the direction of arrows f6 and conveyed to a radioactivity measuring device.
Patent GB-1198592-A (GB)
Title: Method of Separating Xylene Isomers.
IPC: C07C5/27
Filed: 1969-02-10
Abstract: 1,198,592. Separating xylenes. BADGER CO. Inc. 10 Feb., 1969 [4 April, 1968], No. 7122/69. Heading C5E. A method of separating a mixture of ethylbenzene and o-, m-, and p-xylenes comprises fractionally distilling the mixture in a multiplate column 4 to separate an overhead fraction of commercially pure ethylbenzene, a bottom fraction rich in o-xylene, and a sidestream faction rich in m- and p-xylenes, recovering the overhead fraction, recovering commercially pure o-xylene from the bottom fraction, passing the sidestream to a crystallizer 30 to separate p-xylene, passing the remaining portion of the sidestream to an isomerization stage 36 for conversion of its m-xylene content to ethylbenzene and o- and p-xylenes, and recycling the products of isomerization back to the column together with an additional quantity of the mixture. C 7  products of the isomerization may be removed by distillation prior to recycling. A silica-alumina catalyst may be used for isomerization. In an example the side stream comprises on a molar basis about 12% ethylbenzene, and o-xylene, about 27% p-xylene, and about 60% m-xylene.
Patent GB-344224-A (GB)
Title: An improvement in or relating to centrifugal machines
IPC: B04B9/04
Filed: 1930-03-05
Abstract: 344,224. Centrifugal machines. BROADBENT & SONS, Ltd., T. and LEVETT, J. V., Central Iron Works, Huddersfield. March 5, 1930, No. 7151. [Class 23.] Driving, suspending, balancing.-A centrifugal machine b is driven directly by an electric motor d and the complete set is supported on a yielding buffer h arranged coaxially with the spindle c when the latter is in its position of rest. The buffer h, Fig. 1, is tapered to fit in the frusto-conical recess in the motor housing, and over the sleeve i supported by the thrust bearing j. A braking surface r<1> is provided on the underside of the basket b or on the rotor of the motor. The reaction torque on the motor housing d<1> is taken by a flexible strap o secured at its ends to projections from the base a. In a modification the lower end of the spindle is journalled in a member which is recessed to bear upon the buffer h. In another modification the stator p of the motor rests upon the buffer h as shown in Fig. 5, and the rotor r is in the form of a ring member depending from the basket b.
Patent GB-668004-A (GB)
Title: Improvements in hide splitting machines
IPC: C14B1/14
Filed: 1950-03-22
Abstract: 668,004. Splitting hides. SIMON, A. March 22, 1950 [March 22, 1949], No. 7230/50. Class 31 (i). A machine for splitting hides comprises a casing 2 having a perforated upper plate 1, the perforations being more dense in the cutting area so that the suction effect produced by airexhausting means 3 connected to the casing will be greater in that area, an endless perforated hide-supporting belt 6 driven towards the cutting area, a band cutter 10 moved at high speed across the endless belt and sharpened by means of grinding-wheels, a resilient roller 16 for moving and pressing the hide against the cutter, and micrometric means 9 for adjusting the height of the casing and belt assembly. The cutter is driven over a pair of wheels by means of an electric motor and is mounted in a guide 12 having a series of rollers 13 which bear against the non-cutting edge of the cutter, and the latter can be moved towards the endless belt by means of adjusting devices 14.
Patent GB-1069261-A (GB)
Title: Improvements in monorail vehicles
Inventor: PARFITT NORMAN LESLIE CYRIL
IPC: B61C13/04
Filed: 1963-02-22
Abstract: 1,069,261. Monorail locomotives. COAL INDUSTRY (PATENTS) Ltd. Feb. 21, 1964 [Feb. 22, 1963], No. 7231/63. Heading B7L. A monorail vehicle has a body 20 supported by two carriages 1 on an I-section rail having a double box section extension C providing flanges F; each carriage is of channel form with four suspension rollers R and has four lugs 2 supporting two brackets 4 on hinge pins 3, the lugs being strengthened by ribs 2a which extend below the carriage. Each bracket 4 carries a roller 6 on spindle 21 and is connected by pivots 7a to a multiplying linkage comprising links 8 which are connected by swivel pins 9 to vehicle body 20 whereby the rollers 6 are pressed against flanges F with a force greater than the weight of the body 20. The links 8 are adjust able in length to vary the force on rollers 6. The rollers 6 are driven through universal joints 12 and flexible transmission shaft 11 by hydraulic drive motors 22 supplied with working fluid from a pump driven by I.C. engine 23, the vehicle having fuel, water and hydraulic fluid tanks 24 and an operator's cab 25. Should spring mounted plates 27 strike an obstruction, then the supply of working fluid to motors 22 is stopped.
Patent GB-474952-A (GB)
Title: Improvements in and relating to gripper devices for the wheels of motor vehicles
IPC: B60B15/16
Filed: 1937-03-12
Abstract: 474,952. Vehicle wheels. POHL, G. March 12, 1937, No. 7351. Convention date, March 12, 1936. [Class 144 (i)] A tractor or other vehicle wheel is fitted with ground-engaging grips 2 carried by radially-adjustable stems 3 which, with the actuating bevel-gears, are enclosed in a casing comprising discs 16, 17. The latter are fitted with jaws 18 for clamping the stems 3 in adjusted positions by means of transverse bolts 19 connecting the discs. The stems 3 are engaged by nuts 21 on spindles 4 fitted with bevel pinions 22 which mesh with one another in each half of the wheel and are actuated from a central shaft 23. One spindle 4 in each set is fitted with a pinion 26, the shaft 23 being axially-adjustable to bring one of its driving-pinions 24, 25 into mesh with the corresponding pinion 26. For cushioning ground-impact of the grips, rubber buffers 27 may be fitted over the nuts 21.