baber/WOPTO huggingface dataset:
Patent GB-452499-A (GB)
Title: An improved process for making sintered metal alloys
IPC: B22F3/16
Filed: 1934-11-21
Abstract: A process for making sintered metals and alloys comprises thermally treating (advantageously sintering) in vacuo or in a reducing atmosphere and then mechanically working, e.g. forging or rolling, almost pure metal powders, this process being repeated until practical freedom from pores is attained, the thermal treatments preferably being carried out alternately in vacuo and reducing atmosphere.  In an example, pure iron is pressed into rods sintered at 1000 DEG  C. in hydrogen, forged, and again sintered in hydrogen at 1100 DEG  C., and after forging and a rolling sintered in a vacuum at 1150 DEG  C., and again rolled.  In another example, 20 parts of molybdenum, 22 of iron, and 58 of nickel are ground, pressed into rods, sintered in hydrogen at 1150 DEG  C. and again forged.  The mixture is then sintered in vacuo at 1200 DEG  C., hammered, heated at 1300 DEG  C. in a vacuum, and hammered and drawn, the vacuum treatment being repeated a fourth time.
Patent GB-349629-A (GB)
Title: Process of producing building material
IPC: C04B24/38
Filed: 1930-10-20
Abstract: A plastic mass capable of being moulded to form lightweight building blocks &c. is made by suspending a hydraulic binding medium, e.g. Portland cement or plaster of Paris, in agar-agar solution and adding vegetable fillers in granular or fibrous form. The fillers may be treated with agar-agar solution before being added to the cement suspension.  The formed material may be impregnated with tar, asphalt, &c.  In an example, 10 kgs. of cement and 3 kgs. of water are heated with 5 gr. of agar-agar and added to a hot mixture of 20 gr. of agar-agar, 10 kgs. of cellulose and 4 kgs. of water.  After being mixed the mass becomes thick and plastic and is cast in moulds.
Patent GB-521704-A (GB)
Title: Improvements in or relating to frames for cycles
IPC: B62K25/20
Filed: 1938-11-21
Abstract: 521,704. Cycle frames. AUTO UNION AKT.- GES. Nov. 21, 1938, No. 33855. Convention date, Nov. 20, 1937. [Class 136 (iii)] In a frame for motor and other cycles of the type comprising a forked rear portion and a separate central portion detachably secured together, the rear portion comprises two equal V-shaped members 8, 8a (e.g., sheet-metal pressings), each integral in itself and secured to one side of the central portion 6 through distance pieces 40. The central portion 6 is of box-section, and the arms 8a of the V- shaped members are secured to it by spaced bolts 41, 42, which pass through the distance pieces 40. The bolts 41 or 42 can be used as supports for footrests 43 at the bottom, or as saddle supports 44 at the top. A spring- controlled wheel-carrying fork 2 is pivoted at 4 to a bracket 5.
Patent GB-1469668-A (GB)
Title: Shearable elements comprising electrically-ignitable explosive charges
IPC: F42B3/00
Filed: 1974-07-31
Abstract: 1469668 Explosive compositions DYNAMIT NOBEL AG 31 July 1974 [1 Aug 1973] 33886/74 Heading C1D [Also in Divisions F2 F3 and E2] An explosive for use in a shearable fastening (see Division E2) comprises a phlegmatizer which renders the explosive ineffective at a predetermined temperature. The phlegmatizer is preferably a wax, a mixture of polyethylene and petroleum jelly, a long chain hydrocarbon, or a cyclic alcohol. Where the phlegmatizer is particulate the particle size is desirably less than 0À8 mm. The explosive can be based on nitropenta, hexogen or octogen, but is most preferably based on nitrocellulose or an aminoguanidine azotetrazole admixed with barium nitrate.
Patent GB-876426-A (GB)
Title: Improvements in or relating to loudspeaker diaphragms
IPC: H04R7/20
Filed: 1958-10-23
Abstract: 876,426. Diaphragms. HAWLEY PRODUCTS CO. Oct. 23, 1958 [Nov. 25, 1957], No. 33916/58. Class 40 (4). A loud-speaker diaphragm intended to vibrate substantially as a whole is formed as three sides 7, 8, 9 of a flared horn of triangular section. The diaphragm carries a tubular voice-coil former 5 and corrugated flanges 11, 12, 13 by which it is supported. Ribs 10 may be formed on the sides. The diaphragm is of fibrous material and the flanges are of cloth impregnated with phenol formaldehyde resin. Gaps 17 are left between the ends of the flanges when the flanges are glued to the diaphragm. The three flanges may be made in one piece, holes 26, Fig. 6, being left in the corrugation 3 at the corners. Figs. 7, 8 illustrate two of a number of different arrangements of the flange and diaphragm near the junction. The triangular outline of the diaphragm may be isosceles or right-angled. Specification 876,427 is referred to.
Patent GB-1481633-A (GB)
Title: Automatic frequency control devices
IPC: H04N5/50
Filed: 1974-08-01
Abstract: 1481633 AFC systems MATSUSHITA ELECTRIC INDUSTRIAL CO Ltd 1 Aug 1974 [16 Aug 1973 17 Oct 1973] 33928/74 Heading H3A A television receiver comprises a local oscillator 11, a mixer 3, an IF amplifier 4, an FM detector 9 responsive to the IF signal from providing a control signal for the oscillator 11 to lock the receiver on to a selected channel and an arrangement 16-18 or 12-15 for modifying the control signal in a sense to increase the hold-in synchronization range of the oscillator. The control signal may be increased by 16-18 when the IF signal drifts to the sound intermediate frequency of the adjacent channel and the control signal voltage drops in a sense to tend to lock the receiver to the sound I.F. signal. The control signal may be modified by 12-15 for frequency deviations above the nominal IF frequency and in this case, the first auxiliary control path is inhibited at 18 by circuit 15 in the second control path. Fig. 3 (not shown) relates to circuitry usable in Figs. 1A, 1B.
Patent GB-947616-A (GB)
Title: Disc brake
Inventor: HARRISON ANTHONY WILLIAM
IPC: F16D65/14
Filed: 1961-09-22
Abstract: 947,616. Disc brakes. GIRLING Ltd. Sept. 21, 1962 [Sept. 22, 1961; Dec. 15, 1961], Nos. 33953/61 and 44960/61. Heading F2E. A disc brake comprises a friction pad 2, Fig. 1, engaging one face of the disc 1, carried on a lever 4 which is pivoted at 5 on a stationary torquetaking block 6 and a friction pad 3, engaging the other face of the disc, which is brought into engagement by the application, at an intermediate point 13, of a floating lever 10 of which one end is engaged by force-applying means and the other end is connected to the lever 4 to bring the pad 2 into engagement with the disc. In Fig. 1 the pad 3 is carried on a link 20 pivoted to the block 6 at 21. A spring 21a acting between the link 20 and the lever 10 retracts the pads on release of the brake. In Fig. 1, also, the floating lever 10 can be operated either mechanically, through a lever 15, or hydraulically, by cylinder and piston 16, 17. In this embodiment the connection between the levers 4 and 10 is through a link 9 and an adjusting screw which can be altered in length by a knurled head 12. Protective coverings 11, 19 are fitted. When the pad 3 is moved into frictional engagement with the disc 1, the reaction is transmitted through the link 9 and urges the pad 2 into engagement with the other side of the disc. In the embodiment shown in Fig. 3 a friction pad 23, which corresponds to the pad 3 in Fig. 1, is located and guided in a flanged opening in a fixed disc 37 (the rotatable disc not being shown). There are a pair of floating levers 29 which can either be hydraulically operated, 33 being the cylinder housing, or can be operated mechanically through twin levers 31, the lower ends of which have notches which receive a pin 30 carried in the lower ends of the levers 29, which in turn carry a fulcrum pin 32 which engages a face of the housing 33. A lever 24 corresponds to the lever 4 in Fig. 1 but, instead of the connecting link 9, the lever 24 is cranked at 27 and connected to the floating levers 29 through a knifeedge pivot 28. In the Fig. 3 embodiment an automatic adjusting device takes the form of a pin 35 engaging one limb of the operating levers 31, and carried on a disc 36 which, through a ratchet or one-way clutch, turns a snail cam 34 which engages the backing plate of the pad 23 and takes up wear. The embodiment shown in Fig. 7 is similar to that in Fig. 3 except that an intermediate point in a pair of floating levers 47 engages the adjacent friction pad through an automatic adjusting device 49 and the operating lever 50 has in it an inclined slot 53 engaged by a pin which is turned by movement of the lever and is connected to the device 49 through a ratchet or one-way clutch.
Patent GB-175787-A (GB)
Title: Improvements in carburettors for internal combustion engines
IPC: F02M19/08
Filed: 1920-12-01
Abstract: 175,787. Degory, E. H. Dec. 1, 1920. Spray carburettors.-A suction-actuated flap b is pivoted in the wall of a choke tube a above a number of lateral fuel orifices a' therein. The flap rises gradually to the vertical position, thus preventing a sudden rush of mixture, and serves as a non-return valve in the event of a back-fire.
Patent GB-647795-A (GB)
Title: Improvements in apparatus for calling attendants and for like purposes
IPC: G08B1/08
Filed: 1947-12-23
Abstract: 647,795. Switches held set and freed mechanically. PHOENIX TELEPHONE & ELECTRIC WORKS, Ltd., and DOWNING, H. F. Dec. 23, 1947, No. 34013. Addition to 605,720. [Class 38(v)] [Also in Group XXXVIII] The signalling' device described in the parent Specification is modified in that a globe carrier slides within a cylindrical lamp casing and is retained therein independently of the face plate through which the lamp casing projects. The signalling, contacts are not operated directly by the square prism but by cams mounted thereon and the prism is turned through 90 degrees at each depression of the globe carrier, the pressure of a leaf spring on the flat face locating the prism in one of four positions. Connecting terminals are mounted in an outside face of the casing containing the device. A cylindrical lamp casing 9 is fixed to a base-plate 1 and projects through a faceplate 7, which may be common to several devices, being located therein by means of a screwed collar 38. Within the lamp casing 9 slides a globe carrier 10 which may be depressed against the pressure of a spring 12. The globe carrier 10 is retained within the lamp casing by an extension 26 which rides in a vertical slot in the casing 9. Each depression of the globe 11 and carrier 10 depresses also a spring pawl 27 which rotates a square prism 15 through 90 degrees where it is latched by the pressure of a leaf spring 22. Mounted at each end of the prism 15 is a double cam 16, the cams allowing one set of contacts 18-21 to open while a second set closes. Each depression of the globe 11 rotates the cams 16 opening the previously closed set of contacts 18-21 and closing the other set. Three such switch devices are arranged say at a passenger seat, in the gangway, and in the stewards' quarters on an aeroplane. They are connected in a circuit, Fig. 3, (not shown) so that the depression of any globe will light the three lamps and a further depression of any one will extinguish them. During each movement of a globe carrier a metallic member 29 bridges a pair of contact strips 31 to sound an audible warning in the stewards' quarters.
Patent GB-756579-A (GB)
Title: Improvements relating to electromagnets for lifting purposes
Inventor: HANNAH STANLEY HENDERSON
IPC: H01F7/18
Filed: 1953-12-08
Abstract: 756,579. Supply systems for lifting magnets. ELECTROMAGNETS, Ltd. Oct. 11, 1954 [Dec. 8, 1953], No. 34055/53. Drawings to Specification. Class 38 (4). A lifting magnet is energized directly from a D.C. generator driven by an A.C. motor and provided with a separate exciter which feeds the field of the generator over a manually controlled calibrated multi-step reversing potentiometer, whereby the lifting capacity of the magnet may be determined as required and the polarity of the generator reversed for dropping the load. Spring bias must be overcome in order to move the operating member of the potentiometer into the reversing end of its track, whilst at the other end of the track-at which over-energization of the magnet obtains-movement of the operating member can also only be made against spring bias.
Patent GB-971020-A (GB)
Title: Welding contactor guide tube
IPC: B23K9/12
Filed: 1962-09-05
Abstract: 971,020. Welding by fusion; making tubes and dies; twisting; coiling. UNION CARBIDE CORPORATION. Sept. 5, 1962 [Sept. 13,1961], No. 34078/62. Headings B3A, B3E and B3R. A contact and guide tube G, Fig. 1, for an arc welding torch has a helical passage through which a consumable electrode W passes. In a gas shielded arc welding torch the portion of the tube G within the gas nozzle N is straight. The tube G may be helical or may be cylindrical with a helical passage and may terminate in a threaded boss for attachment-to the body B of the torch. The tube G is of copper. The guide tube G may be made by swaging a tube with a straight central hole, machining the outside of the tube eccentrically and gripping and twisting the ends of the tube. Alternatively, a tube with an eccentric hole may be formed by swaging and then be twisted to form the helical passage. The guide tube may also be made by inserting a steel wire mandrel in a straight copper tube, lubricating the outside of the tube, bending the tube into a helix by pressing between a pair of die halves 26, Fig. 5, and extruding the mandrel. The die is formed by assembling a series of washers 12 having eccentric holes in line, rotating each washer 12 relative to the preceding washer so that the holes form a helical passage, securing the washers together by four external weld heads 22, Fig. 4, to form a cylinder 12, silver soldering the cylinder 12 within a bore in a die block 24, splitting the block along a curved plane passing through the axis of the passage and finishing the surface of the passage by hand grinding.
Patent GB-665739-A (GB)
Title: Fishing-line
IPC: A01K91/00
Filed: 1947-12-24
Abstract: 665,739. Fishing. SAETHER, O. Sept. 20, 1948 [Dec. 24, 1947], No. 34104/47. Class 48. A fishing line comprises a textile material centre covered with a coating of flexible polyamide material and is so proportioned that the greater part of the breaking strength of the line is in the cover. The textile material is either braided, parallel or single textile threads and the surface of the cover is grooved longitudinally to prevent slipping in the land. The line may be tapered at one or both ends.
Patent GB-154905-A (GB)
Title: Improvements in or relating to surveying instruments
IPC: G01C3/02
Filed: 1920-12-02
Abstract: 154,905. Totschnig, H. Sept. 8, 1917, [Convention date]. Angle - measuring instruments; clinometers.-The instrument is chiefly intended for setting out embankments &c. but may also be used as a sighting-clinometer. A vertical plate P has horizontal and vertical graduated guide edges M1, M2 along the former of which a plate T can be adjusted and clamped by a screw k1, the position of the plate T being indicated by an index. A scale of lengths y and also scales of angles and gradients are marked on the plate T. Adjustable along the guide M2 is a slide S2 having an index O2 and carrying a semicircular plate B, which can be clamped by a screw k2 and to which is pivoted at A, a graduated sight-bar D,. Pivoted at A2 to the slide S2 is an arm D3 having an aperture which is used for sighting in conjunction with a slot D2 in the plate B. The plate P carries a level L and is mounted on a stand St. To use the instrument, the plate T is adjusted laterally according to the width of the level track and the slide S2 is adjusted vertically according to the height of the instrument above the track. The bar D1 is then used for sighting on a staff, the proper alinement being ensured by preliminary sighting along the arm D3. By setting the indices O1, O2 at zero, the instrument can be used as a sighting-clinometer.
Patent GB-410874-A (GB)
Title: Improvements in the manufacture and production of non-knocking motor fuels
IPC: C10G29/12
Filed: 1932-12-02
Abstract: Crude benzine is freed from olefines readily forming gases by treating it at 0--100 DEG  C. with an added double compound of aluminium chloride with a gaseous or other olefine, and removing the polymerized olefines.  Double compounds specified are those of ethylene, propylene, and cracking gases.  The process is especially applicable to cracked benzines and to benzines obtained by polymerizing olefines or gases containing olefines.  In an example, a mixture of 3000 lb. of cracked benzine, with the double compound obtained by the action of ethylene on 60 lb. of aluminium chloride, is stirred at 50--60 DEG  C. for 1--2 hr.; it is then cooled, freed from aluminium chloride by adding aqueous hydrochloric acid and separating the aqueous layer, neutralized with soda lye or other alkali and dried; the fraction boiling up to 200 DEG  C. is treated with bleaching earths or other decolourizing agents, and re-distilled.  The fraction boiling above 200 DEG  C. may be worked up to lubricating oils and resins, e.g. by treatment with sulphuric acid.
Patent GB-474325-A (GB)
Title: An improved process of and apparatus for gravity separation of bulk material, such as coal or ores
IPC: B03B5/40
Filed: 1936-12-12
Abstract: 474,325. Wet separating. KRUPP AKT.-GES., F. Dec. 12, 1936, No. 34209. Convention date, Dec. 14, 1935. [Class 82 (ii)] Bulk material, such as coal or ores, is separated within a substantially horizontal current of heavy liquid flowing approximately at the same velocity throughout, the current entraining the material remaining in suspension and allowing it to be recovered separately after removal of the floating and sinking portions ; the current may be produced by scrapers sweeping the bottom, and if desired, the sides, of the separating vessel and also the surface of the liquid, and moving at approximately the speed of the current. A rectangular trough 1 has endless conveyers 3, 4, moving along the bottom and the surface, and at the same speed as the heavy liquid 2 ; the scrapers of the conveyer 3 may extend up the sides of the trough. The liquid is introduced at a, b, c, d, e, to give a uniform low speed, and is guided by curved plates 5. The material to be treated is supplied through tube 7 to a hopper 6 leading to a rectangular downwardly expanding tube 8 as wide as the trough. Light particles are discharged over a screen 9 by the conveyer 4, while the heavy particles sink at different distances from the tube 8, according to their specific gravity, and are removed by the conveyer 3 to one or more slots 10, 14, 18. From slot 10, the material falls past shield plates 13 to a vessel 11 from which it is removed by a conveyer. Material from the slot 14 is washed by an upward current of a lighter liquid, such as water from a pipe 16, and is collected in a vessel 15. Material from the slot 18 passes to a vessel 19 with a controlled opening 20. Material suspended in the liquid in the trough is caught by a screen 21 and removed by the conveyer 3, while the liquid passes out through tube 22 and is returned to the trough. The height of the outlet of the tube 8 is varied according to the material treated.
Patent GB-367020-A (GB)
Title: Quick release for gearing for lantern lights and fire curtains
IPC: F21V37/00
Filed: 1930-11-13
Abstract: 367,020. Chain and cord fastenings; shackles. BURKITT, F., 10, Lant Street, Borough, London. Nov. 13, 1930, No. 34245. [Classes 24 and 44.] A readily releasable connection between a fire curtain, lantern light, &c. and the screw rod gear E, F which operates same comprises a lever A pivoted to a fitting B associated with the screw rod E. The lever, which is operated by a chain K, is designed to control a pin C which normally passes through a hole in a bar D attached to the curtain &c. cable G.
Patent GB-1138545-A (GB)
Title: Process for the preparation of -‡-amino--Ï-lactams
IPC: B01J25/04
Filed: 1966-07-29
Abstract: 1,138,545. α-Amino-#-lactams. STAMICARBON N.V. 29 July, 1966 [13 Aug., 1965], No. 34260/66. Heading C2C. α-Amino-#-lactams (e.g. α-amino-caprolactam) are obtained by catalytic hydrogenation of water-soluble salts of the aci-form of the corresponding α-nitro-#-lactams, the separation of catalyst mass from the reaction liquid being carried out under hydrogen pressure and the catalyst mass thus separated being used in a following hydrogenation.
Patent GB-619013-A (GB)
Title: Improvements relating to mechanisms of the kind in which rectilinear motion of one member is translated into proportional angular motion of another member or vice versa
IPC: F16H37/12
Filed: 1946-11-19
Abstract: 619,013. Linear-dimension gauges. MERCER, Ltd., T., and WATSON, R. R. Nov. 19, 1946, No. 34294. [Class 106 (ii)] For translating rectilinear motion of one member into proportional angular motion of another about a fixed axis, the two members are operatively connected by means of a lever pivoted to the angularly movable member on a pivot parallel to the axis of that member, one end of the lever sliding against a fixed abutment and the other end against an abutment on the rectilinearly movable member. As applied to a dial gauge, the plunger 10 has a twoarmed lever pivotally mounted on it at 27, the lower arm 28 being adjustably fastened to the plunger while the upper arm 26 has a knife edge 22 bearing on a plane surface 35 on an arm 33 of a lever 23 pivoted at 32 on a toothed quadrant 24 which is pivotally mounted at 25. A knife edge 36 on the other arm of the lever 23 abuts a plane surface 37 on a block 38 which is rotatable for adjustment purposes, and the quadrant is urged anticlockwise by a spring (not shown) so that as the plunger rises the quadrant will turn, the knife edges 22 and 36 sliding along their respective abutment surfaces 35, 37. The teeth on the quadrant engage a pinion 25a on the arbor of which is a pinion 17 in mesh with a pinion 16, so that movement of the plunger rotates the pinion 16, the shaft of which carries a pointer. The pinion 16 also meshes with a wheel 19 coaxial and fast with a pinion 20 meshing with a wheel 21, thus forming a backlash train.
Patent GB-507178-A (GB)
Title: Improvements in or relating to counters for tabulating and other calculating machines
Filed: 1937-12-10
Abstract: 507,178. Calculating - apparatus. BRITISH TABULATING MACHINE CO. Ltd. Dec. 10, 1937, No. 34307. Convention date, Dec. 12, 1936. Addition to 485,103. [Class 106 (i)] The counter-unit described in the parent Specification is modified in that the constantly rotatable clutch part 32 (which is engaged by the cam member 38) and the toothed ring 36 on the counter wheel 35 are pivoted eccentrically of each other, are of different diameters, and have different numbers of teeth; the eccentricity being equal to the difference in radii of the two parts 32 and 36. Such a counter-unit permits of non-decimal working, e.g. twelfths. U.S.A. Specification 2,076,743 is referred to, for circuits which are controlled to enter twelfths. Each pair of the present units is mounted on a separate, removable plate 27 and may be substituted for the counter units shown in Specification 372,365.
Patent GB-177139-A (GB)
Title: Wharf wall and the like
IPC: E02B3/06
Filed: 1921-12-21
Abstract: 177,139. Aston, T. March 18, 1921, [Convention date]. Sea and retaining walls.-A wharf wall is built of a series of small stepped-down retaining walls 1 and relieving platforms 2, supported by piles 5. The stepped-down bulkhead is preferably formed of concrete and moulded in steps each consisting of a horizontal member 2 and vertical member 1 strengthened bv counterforts 3. The members 2 may be provided with longitudinal and transverse strengthening ribs. The steps are cemented together and mounted on framing 8 supported by the piles 5 and connected by struts 9. A mound or bulkhead of rubble 6 is formed beneath the wharf around the piles and concrete or timber sheeting 10 is provided between this mound and the lowest of the platforms 2. The space behind the bulkhead is filled with earth which also supports the wharf floor 12.