baber/WOPTO huggingface dataset:
Patent GB-153384-A (GB)
Title: Improvements in pneumatic hammers
IPC: B25D9/14
Filed: 1919-08-05
Abstract: 153,384. Richir, C. Aug. 5, 1919. Drawings to Specification. Percussive hand tools.-The handle is provided with a filter for the fluid-supply, and the controlling-valve comprises a ported cylindrical plug moved by the thumb against the resistance of a spring. The valve may be reinforced internally, and arranged either to the right or left of a medial plane through the tool.
Patent GB-240112-A (GB)
Title: Improvements in eye-shades or screens
IPC: G02C7/10
Filed: 1925-07-29
Abstract: 240,112. Hodd, G. W. July 29, 1925. Eye-shields. - The eye-shade or screen described in Specification 233,480 is provided with additional or auxiliary means for protecting or screening the eyes, such auxiliary means being constructed to be readily detachable. An auxiliary screen f of opaque or tinted material is bent approximately to a double U-form, and is applied to the hinged eye-shade a with one edge in contact with the underside of the shade a, and so that it is substantially vertical when in use. Depending portions h of the screen f screen the eyes from approaching lights and direct vision is obtained by out away portions i. The screen f is secured to the shade a by metal strips k at the ends and a spring wire l of V-form at the centre. The screen f is passed between the strips k and the shade a, and the spring wire l is secured at p, p to the shade, the free ends r engaging holes s in the screen f. Modifications in the positions of the depending portions h may be made to shield against rain or snow and the glare of the sun, also dust and flies.
Patent GB-127062-A (GB)
Title: Improvements in Feed Mechanism for Grinding or like Machines.
Inventor: ARTER WILLIAM
IPC: B24B47/20
Filed: 1917-12-31
Abstract: 127,062. Arter, W. Dec. 31, 1917. Feed-devices. -Relates to grinding and other machines in which the work-support or the tool is mounted for movement to and fro to produce a relative movement of the tool over the surface of the work, and in which the movable member at the end of its stroke, in one or both directions, actuates mechanism to produce a feed of the tool in relation to the work, and consists mainly in the provision of automatic means for throwing out the feed mechanism at the completion of a predetermined feeding movement. In the machine shown in Fig. 1, the grinding-wheel 4 is carried by a reciprocating support 6 operated by a reversing-niechanism, of which the dogs 12 and the lever 10 form part. The work is mounted on a rotating chuck 2 mounted in a vertical slide 16 that carries also a screw shaft 17 engaging a fixed nut 18. The shaft is rotated, to move the slide up or down, by bevel-gearing from an horizontal shaft 22, to the outer end of which are fixed a hand-wheel 25 and a ratchet-wheel 26. The ratchet-wheel is turned by a pawl carried by a bell-crank lever 27, which is coupled by a link 30 to another bell-crank lever 31. One arm of the lever 31 is connected by a pin 34 to two smaller bell-crank levers 32, 33, the upstanding arms of which lie one on each side of the lower end of a lever 36 pivoted at 37 and coupled at its upper end by a link 38 to the lever 10 of the reversing-mechanism, whereby the pawl is actuated at each end of the stroke of the support 6. The adjusting-screws provided in the arms of the levers 32, 33 allow of variation in the extent of the movement and of its suppression at one or other end of the stroke of the support. A spring 40 serves to pull the lever 31 up to the adjustable stop 41, and the stop may be used to adjust the extent of movement. A finger 45 mounted on the shaft 22 is provided to lift the pawl out of action when the shaft has been turned through a given angle; the finger is held frictionally on the shaft and may be set by means of graduations on the face of the ratchet-wheel. In another arrangement, the ratchet-wheel is provided with a pawl to prevent back-lash and drives the shaft 22 through a train of reducing-gear, and the operating connexion from the dogs 12 is modified, while still retaining the feature that the pawl may be operated by the movement of the support 6 in either direction. The chuck is rotated by spiral-wheels 51, 52, of which the wheel 51 is connected to the chuck spindle by a sliding clutch operated by the lever 54, 55. This lever is linked up to a lever 59 in the path of a dog 60 on the reciprocating support 6, whereby the clutch is thrown out automatically as the support approaches one end of its stroke; it may be thrown in again by hand, by a spring, or by a dog on the support 6. Specifications 16213/15, 127,060, and 127,061 are referred to.
Patent GB-1178422-A (GB)
Title: Boiler.
IPC: F22B7/12
Filed: 1967-04-27
Abstract: 1,178,422. Steam generators. SOC. DE CONSTRUCTIONS AMANDINOISES. 27 April, 1967 [3 June, 1966], No. 19373/67. Heading F4A. A boiler comprises a hearth 1, the heat source 3 and the flue gas outlet for which are at the same end, the other end being closed and the cross-section of the hearth increases continuously from its closed end to the gas outlet. A chimney 13 is located adjacent the closed end of the hearth and a plurality of flue pipes 8 connect the flue gas outlet to the chimney. The water space 2 substantially encloses the hearth, the smoke outlet and the flue pipes. The degree of inclination of the axis of the burner 3 may vary between one half and two degrees in proportion to the length of the hearth.
Patent GB-183453-A (GB)
Title: Improvements in and relating to a photo-mechanical process for preparing cylinders for printing paper, fabrics, oilcloth, linoleum and similar materials
IPC: G03F7/18
Filed: 1922-07-14
Abstract: 183,453. Naamlooze Vennootschap Nederlandsche Rotogravure Maatschappij. July 19, 1921, [Convention date]. Photo-mechanical printing-surfaces. - Printed paper, wall-paper, fabrics, oilcloth, linoleum, &c. having an endess pattern with half-tones are produced by using printing-formes with endless pattern prepared by using the known photomechanical screen intaglio printing-process. The invention consists in subdividing the exposed gelatine layer, and carrying out the transfer of each portion of the layer to the cylinder, and the further treatment thereof, in separate stages, so as to avoid the difficulty attending the use of safety margins. In an example given a diapositive, with a pattern equal in length to the circumference of the cylinder is divided into two parts along a line at right-angles to its length. A screened gelatine transfer which has been exposed to light under one part of the diapositive is placed upon the cylinder and developed, and the cylinder is etched. The process is repeated for the other part of the diapositive.
Patent GB-1030002-A (GB)
Title: Improvements in and relating to oxidation of saturated aliphatic hydrocarbons
IPC: C07C51/215
Filed: 1963-05-16
Abstract: Ketones are produced by the liquid phase oxidation of saturated aliphatic hydrocarbons having from 3-7 carbon atoms in a process which includes the steps of (a) continuously feeding liquid hydrocarbon and oxygen-containing gas to an elongated reaction zone having a length to diameter ratio of at least 60:1 at a rate such that the liquid flows through said reaction zone essentially in plug flow fashion, and the liquid materials are maintained in the reaction zone for 30 secs. to 100 mins., (b) conducting the oxidation at 125-250 DEG  C. and 500-2000 p.s.i.g. so that the oxidation of the hydrocarbon takes place essentially in the liquid phase, and (c) cooling the effluent from the reaction zone, recycling a portion of the cooled effluent to the reaction zone, and separating the ketones from the other oxygenated organic compounds in the effluent.  The cooled effluent which is recycled to the reaction zone may be partially or wholly replaced by a normally liquid organic solvent. The reaction temperature is preferably 150 DEG  to 200 DEG  C., and the pressure 700 to 1200 p.s.i.g. The length to diameter ratio of the reaction zone preferably varies from 60: 1 to 100,000: 1, the diameter varying from 0.25 to 6 inches.  When the hydrocarbon is butane, the concentration of oxygen based on the butane feed is generally 1-20 weight per cent, and preferably 5-15 weight per cent. The recycle of cooled effluent serves to increase the ratio of ketone formed, compared to other oxygenated products, to remove heat from and control the temperature in the reaction zone, and to act as a solvent for the hydrocarbon.  The recycle ratio to the reaction zone (the volume of recycle per volume of reaction zone per hour) can vary from 0.1-100, preferably 5-30, gallons per gallon of reaction zone per hour.
Patent GB-620768-A (GB)
Title: Improved colour mixing method
IPC: G01J3/52
Filed: 1946-06-28
Abstract: 620,768. Colour comparing. SYREENI, O. June 28, 1946, No. 19441. [Class 97 (i)] A method for determining and mixing colours comprises forming a colour chart by dividing colours into units and giving each colour a unit number which is obtained by taking as main colours yellow, red and blue units, which are so chosen that when two of these main colours are blended into a stronger third the hue of the third is not changed but only softened, and using this chart to mix colours to produce a predetermined result. Instead of using two of the three main colours for the above blending process a trichromatic colour combination formed by mixing together equal unit amounts of yellow, red and blue may be used and this when added to any of the three components does not alter the hue of the latter but only softens it. The colour chart itself is formed from these colour units by dividing a ring into three equal parts for the main colours yellow, red and blue, subdividing for the intermediate colours middle orange, middle violet and middle green, to give six equal parts, and continuing the subdivision to produce finally a colour ring divided into 96 parts. Such a colour chart enables the colours to be divided into two groups, those for the indication of hue alone and also those indicating the colour intensity of each of the three components. In order to copy a given colour, the colour is first compared for hue and the chart gives the relative amounts of yellow, red and blue required to produce this hue, then the colour is compared to give the colour intensity. The proportions of yellow, red and blue are then added so as to give the total colour intensity indicated.
Patent GB-722942-A (GB)
Title: Improvements in or relating to aids to locomotion for cripples
IPC: A61H3/00
Filed: 1952-08-01
Abstract: 722,942. Walking aids. CONLON, A., and BAILY, S. J. Aug. 4, 1953 [Aug. 1, 1952], No. 19486/52. Class 132 (1). [Also in Group VI] An appliance for enabling legless persons tc propel .themselves, comprises a pair of crutches each having an additional support pivoted to it and resiliently urged towards it, at its lower end, but manually movable away from it. The appliance supports the user without the aid of his hands. At each side the appliance comprises a crutch member 8 having an adjustable arm support 11 and a curved frame 7 projecting from it. On a pivot 6 this frame carries a further support leg 1 which has a handle 5 at its upper end and which is urged towards the crutch 8 by a spring 13. The range of movement of the support 2 is limited by a link 14 and cross bar 12 engaging the frame member 7. The whole assembly as shown is duplicated for use with the other arm and the two are rigidly joined by cross members. The forward feet 4 are of rubber or other substance of high coefficient of friction while the rear feet 10 are of wood or other material which will slide comparatively easily. In use, the supports 1 are advanced by the handles 5 while the weight is taken on the crutches 8 and then, by pulling on the handles 5, the crutches are drawn forwards. In modifications, the arm supports may be made adjustable, fore and aft, a harness or sling may be provided for the body, the members 1 and 8 may be telescopically adjustable and the foot members 4, 10 may be replaced by indirectionally rotating wheels.
Patent GB-891155-A (GB)
Title: Improvements in high-tenacity cast-iron with spheroidal graphite
IPC: C21C1/04
Filed: 1958-06-18
Abstract: A modification of or improvement in the process of treating cast iron as claimed in the parent Specification comprises increasing the carbon upper limit to 4,0% and the magnesium upper limit to 0,4% and decreasing the manganese lower limit to 0,4%, the as cast casting showing a white break but containing a small number of small graphite spherules most of which are visible under the microscope.  The cast iron may contain alkali metals, alkaline earth metals, or rare earth metals in amount equivalent to the corresponding amount of magnesium.
Patent GB-950739-A (GB)
Title: Improvements in or relating to data transmission systems
Inventor: WRIGHT ESMOND PHILIP GOODWIN
IPC: H04L1/14
Filed: 1960-06-02
Abstract: 950,739. Exchange systems. STANDARD TELEPHONES & CABLES Ltd. May 26, 1961 [June 2, 1960], No. 19539/60. Heading H4K. In a data transmission system in which data may be transmitted in either direction between a central station and one or more outstations, the data transmitted in one direction being subsequently transmitted in the opposite direction and checked at the originating station, data are transmitted from an outstation to the central station in digital form as different combinations of a series of tones, and from the central station to an outstation in verbal form. As described, one or more outstations (Fig. 1) are connected via normal exchange lines 11, 20 to a central data-processing station (Fig. 2 or Fig. 6). Operation of key 12 at a substation connects up the sending mechanism and manipulation of the keyboard 13 then controls the sending of the digital signals to the central station whereat they are temporarily stored. After a convenient number of digits have been sent, operation of the " Group End " key 13b causes the transmission of a signal to the central station, and the closure of contacts 15. The latter connects up amplifier 16 and loud speaker 16, and the former causes the central station to repeat back the data in verbal form by selection from a library of verbal records (in TIM). If the played back data agree with those transmitted from the outstation, the operation of the " Conform " key 13c by the outstation operator causes the data at the central station to be transferred from the temporary store to a permanent store (magnetic tape or drum, teleprinter &c.). The operation then continues transmission. If the played back data does not agree with those transmitted, operation of the " Cancel " key 13d erases the stored data. Alternatively, operation of the " Group End " key 13b causes the central station to repeat the play back for a second check. If the data originate from the central station, the outstation operator keys back the received data in digital form for comparison with the original data in a comparator 39 (Fig. 6), agreement being indicated by an automatic verbal announcement, followed by the next group of data. Incorrectness results in a repeat of the data group for further check.
Patent GB-676269-A (GB)
Title: Improvements relating to the plastification of rubber by mechanical working thereof in the presence of oxygen
IPC: C08C19/08
Filed: 1950-08-04
Abstract: 676,269. Plastifying rubber. PIRELLI SOC. PER AZIONI. Aug. 4, 1950 [Sept. 7, 1949], No. 19584/50. Class 70 For plastifying rubber there is employed a continuous operation plastifier comprising a closed chamber through and out of which the rubber is forced and at the same time is mechanically worked, e.g. by a screw-like rotor, and a gas containing oxygen or an oxygen-yielding compound, e.g. ozone, is introduced into the plastifier at a pressure of not less than 10 atmospheres at such a position that the gas is prevented from escaping past the forwardly moving mass of rubber to discharge into the atmosphere by way of the rubber feed inlet. The oxygen or oxygen-yielding compound may be injected into the plastifier in successive quantities. The diluent gas for the oxygen may be a gas readily soluble in rubber, e.g. carbon dioxide.
Patent GB-1371428-A (GB)
Title: Process for preparing hydroxy citronellal by saponification of the hydroxy ester
IPC: C07C47/26
Filed: 1972-04-27
Abstract: 1371428 Preparation of hydroxycitronellal SOC DES USINES CHIMIQUES RHONEPOULENC 27 April 1972 [28 April 1971] 19586/72 Heading C2C Hydroxycitronellal is made by hydrolysing an ester (I) or (II) with a strong alkali and water.
Patent GB-1218638-A (GB)
Title: Improvements in or relating to the cleaning of surfaces by abrasive blasting
Inventor: PLASTER DONALD JOHN
IPC: B24C5/06
Filed: 1968-04-25
Abstract: 1,218,638. Blasting. D. J. PLASTER. 23 April, 1969 [25 April, 1968], No. 19663/68. Heading B3D. Blast-cleaning apparatus of the type in which abrasive material is discharged centrifugally from a vaned wheel rotating at high speed and wherein the vaned wheel is fed with abrasive through a control cage at its centre and is enclosed within a housing with a blast opening having liner or deflector plates at opposite ends thereof, is characterized in that thermocouples are attached to such plates so that offcentre discharge from the wheel, due to wear or incorrect setting of the control cage, will be shown by a difference in the temperatures indicated by the thermo-couples. Thermo-couples 24 are attached to end liners 23 and connected to indicators 25 mounted on top of the treatment chamber 8 or mounted on a control panel at a remote position, the indicators actuating as visual or other warning device whenever angular adjustment of the control cage (16), Fig. 2 (not shown), becomes necessary to correct the orientation of the blast stream. Preferably such adjustment is made automatically by means responsive to any temperature differential at the two thermo-couples 24, e.g. (i) by a small electric motor geared to the outer end of the cage (16), (ii) by a linear induction motor or (iii) by admission of fluid pressure to a ram.
Patent GB-452914-A (GB)
Title: Improvements relating to lubricants and to lubrication
IPC: C10M137/10
Filed: 1934-12-29
Abstract: Lubricating-compositions especially for use under high pressures consist of a lubricating oil to which is added a minor amount of a halogenated non - volatile petroleum product. Chlorinated lubricating oil, kerosene or paraffin wax, preferably containing 55 per cent or more of chlorine, and boiling above 170 DEG  C. are used. Specification 431,434 is referred to.
Patent GB-380195-A (GB)
Title: Improvements connected with valve seats for internal-combustion and other engines
IPC: B21K1/24
Filed: 1931-07-10
Abstract: 380,195. Cylinders. WASTIE, C. R., 42, Chiltern Avenue, Bushey, Hertfordshire, and SCAMMELL LORRIES, Ltd., 52, High Holborn, London. July 10, 1931, No. 19886. [Class 7 (ii).] A valve-seating ring 1 is locked in a recess in a cylinder by a deformable conical ring 8 which is engaged by grooves 3, 11 and deformed when the ring 1 is pressed home so that it becomes flat as shown, or its conicity is reversed. The ring 8 is made of mild steel or aluminium and the ring 1 of centrifugally-cast iron.
Patent GB-299744-A (GB)
Title: Improvements in power-transmission mechanisms for the driving-wheels of motor vehicles
Filed: 1927-07-27
Abstract: 299,744. Abramson, A. July 27, 1927. Addition to 284,791, and 286,153. Differential gearing comprises a cross bolt &c. which engages a lug on each of two drivers 7, 7' so as to allow either to overrun to a limited extent. According to Specification 286,153, when one part axle overruns, the other is locked to the driving-member 10 by a ball 41 carried in a transverse recess in a diametral bar 40 secured to member 10. The ball projects in V-recesses 30, 30<1> in the drivers 7, 7<1>, which are fast on the axle-parts 1, 1'. According to the invention, the ball 41 is resiliently held in mid position by spring plungers 42, 42' carried by the drivers 7, 7<1> at the apices of the V recesses. When, on differential action taking place, the driver 7 moves on, the ball 41 is thrust to the right and the plunger 42<1> is thrust outwards to engage in a bore 48<1> in the driving casing 10, thereby making a positive lock for the other or operative driver 7'.
Patent GB-1422581-A (GB)
Title: Rotary turntables
IPC: F16H1/28
Filed: 1973-04-26
Abstract: 1422581 Epicyclic gearing HOESCH WERKE AG 26 April 1973 [29 April 1972] 19964/73 Heading F2Q  A turntable 213 is rotatably mounted with respect to a fixed base 13 by ball bearings having an outer race 14 secured to the base 13, and is driven by epicyclic gearing comprising opposed pairs of eccentrically arranged planet gears 15 which are prevented from rotating with respect to the fixed base 13 by bolts 18 projecting through circular apertures 16 in the gears 15 and mesh teeth 12 on an annulus 10 secured to the turntable 213. The planet gears 15 are rotatably mounted on eccentric portions of an inner annulus 21 which has internal teeth 211 engaged by a driving pinion 22.
Patent GB-717555-A (GB)
Title: Improvements in or relating to shaped silicon nitride bodies and their manufacture
IPC: C04B35/591
Filed: 1952-08-07
Abstract: A shaped body of silicon nitride is made by forming into the desired shape silicon metal which has been reduced to a mesh size of say U.S.S. 180 or smaller, firing in an atmosphere of nitrogen, ammonia gas, or in a substantially non-carbonaceous, non-oxidising atmosphere under such conditions that complete nitriding is effected, with the production of silicon nitride having the formula Si3N4, the electrical resistivity of the body being over 1 megohm per c.c. at 25 DEG  C.  Finely divided silicon nitride may be mixed with the silion raw material, and pore-forming materials, preferably those removed by volatilization during drying and/or firing, may be included, e.g. powdered or granular naphthalene, or organic resinous material such as phenolic resins.  More rapid nitriding is obtained if commercial silicon or pure silicon containing up to 5 per cent. iron preferably 3/4 -1 per cent. is used, and if the silicon is of a size U.S.S. 200 mesh and finer down to 10-20m .  Any usual moulding technique may be used and the firing is effected at 1250-1420 DEG  C., preferably 1300-1400 DEG  C., although temperature above 1420 DEG  C. may be used in the later stages.  The firing atmosphere may be nitrogen, commercial nitrogen, annealing hydrogen (93 per cent. N2: 7 per cent. H2), or ammonia.  The article is exposed to nitrogen on all sides during firing.  Briquettes of silicon may be nitrated by the process and the resulting silicon nitride mechanically shaped.  The articles produced are refractory, have a low coefficient of expansion, a madulus of rupture 9,000-20,000 lbs. per sq. in. and are resistant to acids and aqueous alkalis, and many applications of these articles are exemplified.  In examples: (1) lens fusion blocks are made by mixing commercial silicon, 200 mesh and finer, with 1 1/2 per cent. dextrin as temporary binder, moistening with water, moulding under 1,400 lbs. per sq. in., drying and heating in a muffle furnace in nitrogen with the temperature gradually increasing to 1,400 DEG  C., maintaining at 1,400 DEG  C. for 7 hrs. and cooling in nitrogen; (2) crucibles, combustion boats, and the like are made by mixing silicon with 2 per cent. bentonite, and sufficient water for slip casting, pouring the slip into a plastic mould, drying the moulded body, and firing as in (1).