baber/WOPTO huggingface dataset:
Patent GB-508203-A (GB)
Title: Improvements in and relating to lathes and like machine tools
IPC: B23B29/02
Filed: 1937-12-28
Abstract: 508,203. Lathes. VOLTER, O. Dec. 28, 1937, No. 35893. Convention date, Dec. 30, 1936. [Class 83 (iii)] A lathe adapted for a fine boring operation in addition to rough machining with a single setting-up of a workpiece comprises a main spindle 7 capable of being held against rotation, means for rough machining the workpiece and a fine boring spindle 2 which can be withdrawn from the working range of the lathe and which is driven and fed independently of the means for the rough operation. The rough-machining may be carried out in the usual manner by tools in a turret 10 and then the spindle 7 locked against rotation by a lever 5 for a fineboring operation by the tool 3 driven from the motor 1. The letter is carried on a beam 9 which may be rotated to swing the tool spindle into or out of the working range. In a modification, the fine-boring device including its driving and feeding means is carried in the tool turret of a turret lathe. In a further modification, the fine-boring spindle is carried in the main spindle of the machine and fed through from the back of the workpiece.
Patent GB-622260-A (GB)
Title: Improvements relating to the winding of plastic sheet material
IPC: B29C53/32
Filed: 1946-12-06
Abstract: <PICT:0622260/IV (a)/1> Hot plastic sheet material is removed from a conveyer of the endless belt type, allowed to cool in its passage from the conveyer to a roll, and then wound on the roll which rests on the conveyer and is rotated by surface contact therewith, a rotatable or stationary stop being provided for the roll spindle to rest against.  The arrangement may be used in a sheet-forming operation in which plastic material is fed between two heated rollers, stripped from one of the rollers in the form of a hot sheet and deposited on an endless belt conveyer.  In order to cool and tension or stretch the sheet, a loop may be formed in the sheet between the delivery end of the conveyer and the roller and a weight in the form of a cylinder or tube is suspended in the loop. While travelling between the conveyer and the roller the sheet is exposed on both sides to the surrounding atmosphere and is cooled thereby. Cooling may be assisted by directing cool air or water on to the sheet.  As shown in Fig. 1, the hot sheet B travelling on conveyer A leaves the delivery end and passes in a loop round the tensioning or stretching cylinder K which is suspended in the loop.  The cooled sheet is then wound on roller C.  The roller spindle runs in contact with two wheels D, one at each side.  Cool air or water may be sprayed on to the sheet from spray-pipe L.  If desired, cooling fluid may be sprayed on to the looped portion of the sheet.
Patent GB-513309-A (GB)
Title: Improvements in public address stabilizing systems
IPC: H04M9/08
Filed: 1937-12-30
Abstract: 513,309. Public address systems. RADIO CORPORATION OF AMERICA. Dec. 30, 1937, No. 36107. Void. Convention date, Dec. 31, 1936. [Class 40 (iv)] [Also in Groups XXXV and XL] Acoustic reaction in a public address system is reduced by continuously varying the air path between the microphone and loudspeaker, by introducing a continuously variable phase change in the circuit between the microphone and loudspeaker or by slightly reducing all the component frequencies in that circuit. In Figs. 1, 2, the loudspeaker 1 is carried by a plate 2 which is supported on arms 3 by universal joints 6 and which is cyclically rotated by a crank pin 8 coupled thereto by links 9, 10. In Fig. 3 a variable phase change in the circuit between the microphone 12 and loudspeaker 1 is introduced by passing sound through an air tube 15, 17 of which the U-shaped portion 17 slides to and fro over the straight portions 15 under the control of a crank 19. A similar result is obtained electrically in Fig 4 by means of an artificial line 24 suitably terminated by a resistance 25 and an exploring coil 26 which moves to and fro over the artificial line. In Fig. 5, the currents arrive at the loudspeaker 1 slightly reduced in frequency. The currents from the microphone 12 pass to a modulator 33 and modulate a carrier frequency, e.g., 20,000, supplied by an oscillator 34 and the upper side band is selected by a filter 31. This is mixed at 36 with a second carrier frequency from an oscillator 35 differing slightly from the first carrier, e.g., 20,000, and the resulting currents pass through a detector 37 and amplifier 38. The audio frequencies are therefore reduced by 2 cycles per second. Some methods of obtaining two carrier frequencies with a constant small difference between them are shown in Figs. 6, 7. In Fig. 6, a frequency f1 is supplied to two stator coils 43, 44 disposed at right angles, the currents in one being 90‹ out of phase with respect to those in the other. The voltage induced in a rotor coil 47 driven at f2 revolutions per second is of frequency f1 Œ f2. In Fig. 7, a carrier frequency f1 is modulated at a low frequency f2 in balanced modulators 50, 51, the voltages supplied to 50 being in quadrature with those supplied to 51. By combining the outputs a frequency f1 Œ f2 is obtained. Since a quadrature phase shift in a very low frequency is difficult to obtain, such a frequency may be derived (Fig. 8, not shown) as the beat frequency of two higher frequencies, the phase shift being introduced in both these frequencies to feed one of the modulators. Specifications 486,290 and 486,291 are referred to.
Patent GB-758205-A (GB)
Title: Improvements relating to by-pass, turbo-jet engines
Inventor: RAINBOW HORACE SINCLAIR
IPC: F02K3/02
Filed: 1953-12-30
Abstract: 758,205. Gas turbine and jet propulsion plant. ARMSTRONG SIDDELEY MOTORS, Ltd. Nov. 16, 1954 [Dec. 30, 1953], No. 36141/53. Class 110(3) In a turbo-jet engine wherein part of the air delivered by the ducted fan 9, Fig. 1, passes to the jet through an annular by-pass 7 surrounding the engine and the other part passes to the compressor 15, use is made at the beginning of the bypass of a structural support comprising inner and outer rings 16, 17 interconnected by aerofoil section spokes 18 and an intermediate aerofoil section ring 19 to initiate the division of the air stream. The support is a casting of maghesium-zirconium alloy provided with end covers 20 and houses the reduction gearing through which the fan is driven The by-pass ducting downstream of the support comprises inner and outer shells 24, 23 made in halves and reinforced by channel section rings 23a, 24a. The shells are carried at one end by mounting rings 27, 28 and at the other end by mounting rings 30, 31, Fig. 2, carried by a downstream structural support comprising inner and outer engine casings 32, 33 interconnected by aerofoil section spokes 34 continued radially outward to support non-removable portions 45, 46 of the ducting which are integral with a box section reinforcing ring 47. The inner and outer shells 35, 37 forming the final section of the ducting are reforced by channels and are supported by the downstream structual support and by radial pins 40, Fig. 3, engaged in the casing 41 and extending into aerofoil section spokes 43 connecting the casing with the exhaust cone 42.
Patent GB-1081361-A (GB)
Title: Separation of gases
Inventor: WINGATE JOHN ROBERT
IPC: B01D71/30
Filed: 1964-09-04
Abstract: Plasticized polymeric materials are used in diffusion membranes for gas separation.  Hydrogen and carbon dioxide are separated by diffusion through a polyethylene or polyvinyl chloride membrane made selectively permeable to the CO2 with a plasticizer such as di-n-octyl-sebacate and the phthalic acid ester of mixed C7-C9 alcohols.
Patent GB-156584-A (GB)
Title: Improvements in or relating to the manufacture of boots, shoes or the like
IPC: A43B21/42
Filed: 1920-12-29
Abstract: 156,584. Stedler, H. F. W. Jan. 5, 1920, [Convention date]. Heels.-In the manufacture of boots &c. adapted to receive heel pads, a lift provided with screwed sockets for the attachment of the pad is secured to the heel before the heel is finally shaped. As shown, a lift 2 with screw-threaded countersunk sockets 3 adapted to engage screws 6 securing a detachable pad 5 is secured to the heel when this is attached to the boot, and the heel is, thereafter, finally shaped. The pad 5 may be of rubber or horn. According to the Specification as open to inspection under Sect. 91 (3) (a), in the case of wooden heels, the lift 2 is secured before the heel is covered with leather, celluloid or enamel. This subject-matter does not appear in the Specification as accepted.
Patent GB-514145-A (GB)
Title: Improvements in and connected with aircraft
IPC: B64C3/54
Filed: 1938-12-14
Abstract: 514,145. Detachable supporting surfaces for aircraft. DAIMLER-BENZ AKT.-GES. Dec. 14, 1938, No. 36434. Convention date, Dec. 14, 1937. [Class 4] An aircraft is provided with one or more slidably releasable supporting surfaces -which are released after take-off, the surfaces being arranged in the plane of the main wings and either at the leading edges, the trailing edges, or the wing tips. The surfaces may be provided with-parachutes which are automatically opened when the surfaces are jettisoned and may be mounted so that they can swing into an unloaded position before being jettisoned. In the forms shown, each wing 10 is provided with either or both auxilary surfaces 11 and 18 positioned at the wing tip and trailing edge. The surface 11 is adapted to be jettisoned by a spring 15 located in the wing spar 14 and is mounted by means of a conical extension 12 of its'spar 13 which engages the open end of the wing spar and is secured therein by a suitable lock releasable in two stages by the pilot. The end of the spar 14 and the extension 12 may be suitably roughened or notched to prevent rotation of the surface. The lock is first released to allow the surface to reduce its incidence until it supports its own weight only; the pilot then trims the.craft and completely releases the lock. The surface 18 is mounted by means of spars 19 provided with ball joints 22 and inserted in tubular members 20 against the action of springs 21 and locked herein. The locks are first released to allow the ball joints to emerge from the members 20 and permit the surface to swing to an unloaded position; the pilot then .trims the craft and completely releases the locks.
Patent GB-776340-A (GB)
Title: Infinitely variable gear
IPC: F16H29/08
Filed: 1955-12-20
Abstract: 776,340. Driving-gear. HAUSER, H. Dec. 20, 1955, No. 36470/55. Class 7 (2). [Also in Group XXIV] The oscillating input shaft 4 of a continuously variable ratio friction ratchet gear 6, 8 &c. (see Group XXIV), is formed as the driven shaft of an internal combustion engine having opposed cylinders 1, 1a and connecting rods 2, 2a pivoted on arms 3, 3a fast with the shaft.
Patent GB-1060523-A (GB)
Title: Process for the manufacture of n'-(5-nitro-furfurylidene)-1-amino hydantoin
Inventor: PORTELLI MARIO
IPC: C07D405/12
Filed: 1965-08-25
Abstract: N1-(5-nitrofurfurylidene)-1-amino-hydantoin is prepared by adding monochloroacetic acid over a period of at least 12 hours at 0 DEG  to 5 DEG  C. to an alkaline aqueous solution of hydrazine in such a way that the reaction occurs in the presence of excess hydrazine, and successively reacting the reaction product with an alkali metal cyanate and 5-nitrofurfuraldehyde, the process being carried out in a single aqueous phase without isolation of intermediates.
Patent GB-1113784-A (GB)
Title: Bonded needled felt
Inventor: JENKINS RONALD
IPC: D04H1/4258
Filed: 1964-09-07
Abstract: The process of the parent Specification is modified by including the additional step of compacting the web by needling at the same time as or before activating the latent solvent.  A second compacting step may be applied after the needling, e.g. in a heated press so that the activation of the latent solvent takes place during the pressing.
Patent GB-1278654-A (GB)
Title: Novel polycyclic lactones
IPC: C07D307/93
Filed: 1969-03-18
Abstract: 1278654 Polycyclic gamma-lactones MOBIL OIL CORP 18 March 1969 [20 March 1968] 36618/70 Divided out of 1278651 Addition to 1278651 Heading C2C [Also in Division C5] Novel lactones of formula where R and R<SP>1</SP> are H, halogen or organic, cyano, isocyano, thiol or nitro groups and R<SP>2</SP> is (CH 2 ) n , where n is at least 6, or an alkenylene group of at least 3 C or an alkylene group containing at least 3 carbon atoms of which 2 adjacent carbon atoms form the beta and gamma carbons of a butyrolactone ring, are prepared by reacting a cyclo monoolefin having 8 or more carbon atoms in the ring or a cyclopolyolefin having 5 or more carbon atoms in the ring, with a source of RR<SP>1</SP>CCOOH free radicals in the presence of a reducible metal ion of Mn, Ce, Fe, Ni, Co, Hg, Pd, Ag, Cu, Ti, Tl, Th, V or Sn. The free radical may be produced by the action of a salt of one of the above metals or a peroxy compound on the acid RR<SP>1</SP>CHCOOH.
Patent GB-431062-A (GB)
Title: Improvements in or relating to the manufacture of bonded abrasive articles
IPC: B24D11/00
Filed: 1933-12-29
Abstract: 431,062. Abrasive articles. CARBORUNDUM CO., Ltd., Trafford Park Road, Manchester. Dec. 29, 1933, No. 36643. Convention date, Dec. 30, 1932. [Class 60] [See also Group V] In the process of manufacture of resinbonded abrasive articles, in which grains of abrasive material are moistened with a resin solvent and mixed with powdered resin, the mixture is heat-treated whilst maintaining the grains sufficiently separated to prevent agglomeration in order to provide a coating of resin bond surrounding the individual abrasive grains. The abrasive article is subsequently made by adding a small quantity of resin solvent, e.g., less than 1 per cent, to the coated grains, pressing the mixture and curing by heating. Owing to the previous heat-treatment of the coated grains, the resin bond is partially hardened and does not tend to flow into the spaces between the grains during the pressing and heat-treatment of the article, which is thus open-pored and cuts freely. In an example, 880 parts of 36 grit fused alumina grains are wetted with 30 parts of a liquid phenol condensation product resin, such as that known under the registered Trade Mark " Redmanol " as No. 1375. After mixing, 90 parts of powdered resin known as " Redmanol " CR = 0214 are added and mixed. The granules are then separated and subjected to a temperature of about 350‹ F. for approximately 2¢ minutes. The product so obtained is mixed with about 1 c.c. of resin solvent such as benzaldehyde and is pressed and cured by heat to form the finished article. In the apparatus shown for producing the coated grains, the abrasive grains, moistened with resin solvent and mixed with powdered resin, are fed from a hopper by a feed roll 3 to a screen 5, through which they fall in a separated state on to a steel or other belt 4 by which they are carried through a heating chamber 10 and thence past an air blast from a blower 15 by which they are cooled before delivery. Specifications 225,436 and 333,409, [both in Class 22], are referred to.
Patent GB-1163532-A (GB)
Title: Improvements in or relating to scaffolding
Inventor: SPRIGGS ERNEST JOHN
IPC: E04G7/30
Filed: 1965-08-26
Abstract: 1,163,532. Scaffolding; clamp, stud and socket fastenings. EDDISON PLANT Ltd. 23 Aug., 1966 [26 Aug., 1965], No. 36659/65. Headings E1S and E2B. A diagonal or horizontal scaffolding member carries a connecting member 7 with a tongue 8 projecting transversely from its end, which tongue is secured in a socket 5 on an upright 1 by a wedge 12. The wedge is in a slot 9 in the member 7 and the wall 4a of the socket is gripped between the tongue and the wedge. The wedge is held captive by a pin 16 fixed in the side of the slot and engaging a groove 14, 15 in the wedge. The groove shelves at the lower end 15 so that the wedge can be jammed in the upper position. Sections of an upright have spigot and socket connections.
Patent GB-1447327-A (GB)
Title: Mud flaps
IPC: B62D25/18
Filed: 1974-08-21
Abstract: 1447327 Mud flaps K ARENHOLD 21 Aug 1974 [22 Aug 1973 18 June 1974] 36683/74 Heading B7J A mud flap 1 for a wheel at the side of a vehicle has provided on its surface for facing the wheel one or more ribs 2 each of which, when the flap is in its normal position of use, runs obliquely downwardly from its outer end to its inner end. The inclination of each rib 2 to the horizontal is greater at its outer end than at its inner end. At the outer edge of the flap, an outer rib 3 is provided which is connected to the oblique ribs 2 so that water and dirt impinging on the flap cannot escape from the outer edge but must flow down the ribs 2 to be ejected at the inner edge.
Patent GB-764311-A (GB)
Title: Improvements in or relating to bins or containers for powdered materials
Inventor: GLENDINNING STANLEY ARCHIBALD
IPC: B65G53/60
Filed: 1955-04-06
Abstract: 764,311. Confining dust generated in industrial processes. AMALGAMATED LIMESTONE CORPORATION, Ltd. April 6, 1955, No. 36808/55. Divided out of 764,310 [Group XXX]. Class 8(2) A container, e.g. a hopper 10, 11 into which powder may be fed pneumatically through a duct 42 has an air vent above the highest powder level and over which is rigidly held an air pervious filter layer 34 of foam rubber. The air vent is formed between a ring 32 welded to the container top and a L-shaped ring 30 welded to the periphery of a cover 27 and to the upper end of a flange 29 which is secured at its lower end to spacing tubes 31 welded to the ring 32. The layer 34 is supported on its downstream side by coarse wire mesh 33 welded to the rings 30, 32. An inspection hatch 28 is provided in the cover 27.
Patent GB-869806-A (GB)
Title: Vehicle lamp reflectors
Inventor: GREEN STANLEY
IPC: F21V7/00
Filed: 1958-11-17
Abstract: 869,806. Reflectors for vehicle lamps. LUCAS (INDUSTRIES) Ltd., JOSEPH. Nov. 9, 1959 [Nov. 17, 1958], No. 36866/59. Classes 75(2) and 75(4). A vehicle lamp reflector of dished form consists of eight integral sections of which one pair of opposite sections 7 form portions of a cylinder, a second pair of opposite sections 10 form portions of a pair of cylinders having parallel spaced axes and the two pairs of intervening sections 13 form portions of the surface of a paraboloid of revolution. The axis of the cylinder of which the sections 7 form a part is horizontal and intersects a central horizontal axis through the bulb filament. The axes of the cylinders of which the sections 10 form parts are vertical and on opposite sides of the central horizontal axis. The paraboloid of revolution of which' the sections 13 form a part is generated about the central horizontal axis and has its focal point at or close to the bulb filament. The sections 7 produce a vertically diverging beam, the sections 10 a horizontal diverging beam of greater angle and the sections 13 produce a parallel beam.
Patent GB-1269380-A (GB)
Title: Improvements in or relating to glass bulb blowing apparatus
IPC: C03B9/12
Filed: 1969-07-23
Abstract: 1,269,380. Feed rollers for glass bulb blowing ribbon machine. TOKYO SHIBAURA DENKI K.K. 23 July, 1969 [23 July, 1968], No. 36963/69. Heading C1M. To protect the feed rollers of a glass bulb blowing ribbon machine, a safety device comprises a pair of feed rollers 2, 3 positioned below an orifice of a glass melting furnace to shape a stream of molten glass to a glass ribbon, one of the rollers 3 being mounted on a movable bracket 6, mounted on rails 5a fixed to the machine frame 5, and having a cam 6a, which, on movement of bracket 6 and roller 3 due to solids or other abnormality between rollers 2 and 3, operates a switch S1 by which piston and cylinder assembly I is operated to unlock a locking device 26 on an arm 25 which then operates a switch S2 which, through a second piston and cylinder assembly II rotates a shaft 18 and pull member 28 secured thereto to move the bracket 6 and roller 3 away from the roller 2, which is mounted in machine frame 5. Bracket 6 is secured to an end plate 7 having a central hub 7a in a bore of which a flanged sleeve 8 slides, sleeve 8 being centrally screw threaded 8a to receive a screwed rod 12 and externally screw threaded to receive an annular ring 9 and clamping nut 10, a spring 11 pressing between ring 9 and the inner end of hub 7a and a gap C being normally between hub 7a and ring 9 to allow very small variations between the two rollers 2, 3 without operating the safety device. Rotation of rod 12 allows adjustment of the normal distance between the two rollers: the other end of rod 12 is connected by coupling 13 to a shaft 14 having a bevel gear 16 keyed thereto and meshing with a bevel gear 17 rotatable from outside the machine. On shaft 14 is fixed an annular member 15 with a groove engaged by rollers 29 carried by the pull member 28 so that rotation of shaft 18 rotates pull member 28 to move shaft 14, rod 12 and bracket 6 further away from roller 2. A handle 21 on shaft 18 allows manual separation of the two rollers, the shaft 18 being first disconnected from the piston and cylinder assembly I (which is mounted thereon) by movement to the right as viewed in Fig. 3, the assembly I including a cylinder 22 fixed to machine base 19 and piston 23 keyed to shaft 18 by key 32.