baber/WOPTO huggingface dataset:
Patent GB-813107-A (GB)
Title: Apparatus for bending sheet glass
Inventor: BLACK LLOYD VERNON
IPC: C03B23/027
Filed: 1955-09-23
Abstract: 813,107. Bending and tempering glass. PITTSBURGH PLATE GLASS CO. Sept. 23, 1955, No. 27181/55. Class 56. The mould on which glass sheets are supported during bending and tempering comprises a central section 312, Fig. 20; and end sections 315, 316. Arms 331 are rigidly secured to the end sections and are pivoted on rods 323 as extending between, and rigidly secured to, the side members 317, 318 of the central section. The other ends of the arms are rigidly secured to transverse rods 332 the free ends of which are slidable on guides 334 formed on the carriage 307... 310, stops 335 preventing sideways movement of the mould on the carriage and other stops 336 limiting the sliding movement of the rods. Adjustable stops 338, 341 control the relative movements of the mould sections 312, 315, 316. The angle members 310 of the carriage rest upon positively rotated stub rolls 13. Fig. 1, by which the moulds are passed through the preliminary lehr 20, the electrically heated glass-bending section 25, and between the members of the tempering and cooling apparatus 100, 100A, 100B. The gap between the ends of the stub rolls 13 allows the centre sections 312 of the mould to lie below the plane of the conveyer as referred to in Specification 813,108. The tempering apparatus 100, Fig. 8, which forms the subject-matter of Specification 813,109, comprises adjustable nozzle members protruding from the web portion of channelshaped hollow members 123, 184 the hollow leg portions of which are adjustably carried in upper and lower boxes 110, 114 (two of each) to which tempering air is supplied from conduits 103, 104, Fig. 1, through branches 106, 112 respectively. The boxes 110, 114 form a unit which is mounted for eccentric movement about vertical shafts 219, flexible connections being provided between the boxes and the air conduits. As shown the nozzles 173 adjacent the severelycurved portions of the glass 311 project from specially-shaped end sections 160 adjustably carried by the upper box 110, in a manner generally similar to the members 123. The coolers 100A, B are similar to the unit 100 except that they remain stationary. End sections complementary in shape to the sections 160 may be provided for the lower boxes.
Patent GB-630109-A (GB)
Title: Improvements relating to lathes and like machine tools
IPC: B23Q1/28
Filed: 1945-03-28
Abstract: 630,109. Turret lathes. POTTER & JOHNSTON MACHINE CO. March 28, 1945, No. 27190/47. Convention date, May 26, 1944. Divided out of 630,068. [Class 83 (iii)] In a lathe having a slide with channelportions reciprocable on spaced parallel rail elements of the bed, the combination of clamping straps arranged on each side of the slide and underlying adjacent portions of the bed and slide respectively, each strap having its longitudinal edge portions chamfered and engaging corresponding chamfered portions of the bed and the slide, and means for tightening the straps so as to bring the chamfered portions into engagement to compensate for Wear between the bearing portions of the rail elements and slide. The turret slide 23, Fig. 4, having a channel d at its front side and a recess d<SP>1</SP> at the rear, is adapted to slide on rails 136, 137, respectively, provided on the bed 24. Clamping straps 141, 142 underlie adjacent portions of the rail and slide and each strap has its longitudinal edgeportions e chamfered to engage corresponding chamfered portions of said bed and slide. Socket-head bolts 146, Fig. 3, carried by screwheaded sleeve-members 145, secure the straps to the slide and by relative adjustment of the bolts and sleeves the straps may be tightened or loosened. Hard-metal inserts 139 may be employed along the bearing surfaces of the slide and a lateral gib 140 is provided to take up transverse wear of the slide. Specification 630,068 is referred to.
Patent GB-157700-A (GB)
Title: Improvements relating to the strikers of hammerless drop-down small-arms
IPC: F41A19/18
Filed: 1919-12-18
Abstract: 157,700. Hayes, G., and Murray, F. T. Dec. 18, 1919. Breech actions, drop-down barrel.-A stop system for the strikers of hammerless doublebarrel drop-down small arms comprises a single pin a' extending completely across the body and engaging a recess e', or a slot, in each of the strikers d'.
Patent GB-793761-A (GB)
Title: Improvements in or relating to arrangements for delaying electrical pulses
IPC: H03K5/00
Filed: 1956-09-06
Abstract: 793,761. Pulse delaying circuits. PINET, A. E., and LACHAISE, J. M. Sept. 6, 1956 [Sept. 15, 1955], No. 27384/56. Class 40 (6). Pulses are delayed by applying them to a delay line which is terminated in its characteristic impedance, the terminated end of the line being also applied via a limiter amplifier to the input end of the line. Fig. 1 shows a pulsedelaying circuit in which positivegoing pulses 10 are applied to the input 2, 3, of a delay line 1 which is correctly terminated by impedance 6. The delayed positivegoing pulses, across this impedance are amplified by a limiting amplifier 7, the negative-going output pulses of which are applied back to the input of the line, and subsequently via the delay line 1 to appear across impedance 6. Since these negative pulses have no further effect upon tube 7 the input pulses 10 appear across the output impedance 6 after a delay equal to twice the delay time of the line 1. Fig. 2 shows the application to a pulse distributing system in which the input pulse 10 applied to a line 1 appears at the output terminals. 121 ... 123 with successively increasing delay time, these pulses are also applied by phase-reversing transformers 13<SP>1</SP> ... 133 to output terminals 12<SP>4</SP> ... 12<SP>6</SP>. Since the tappings on the delay line 1 are at equally spaced points along the line a sequence of progressively delayed pulses, Fig. 3 (not shown), is produced at the output terminals. The gain of tube 7 should be at least equal to the attenuation produced by delay line 1.
Patent GB-448600-A (GB)
Title: Electromotors
IPC: F01D5/06
Filed: 1935-10-04
Abstract: 448,600. Centrifugal pumps. VOGEL, E., Stockerau, Vienna. Oct. 4, 1935, No. 27429. Convention date, Jan. 31. [Class 110 (i)] [See also Group XXXV] In a submersible electric motor of the type in which the weight of the rotating parts is partly taken by the pressure of liquid on a relieving plate, against which it is forced by a pump driven by the motor, the liquid acting on the plate is kept separate from the external liquid, and may be caused to circulate as a cooling-liquid. The Figure shows a centrifugal pump 10 forcing liquid against a disc 7 on the shaft 1, so that it escapes between the disc and the pump-casing 12. To prevent binding at starting, or if the pump starts in the wrong direction, a non-return valve may be placed in the pump inlet 16 and the shaft 1 rotate in a footstep bearing which always maintains a small gap between the disc 7 and the casing 12. The liquid may simply circulate in a chamber 15 or some of it may flow by passages 30 and a pump-impeller 29 to the air gap 4 of the motor and thence to chambers 23 outside the chamber 15 cooled by the external liquid, returning to the chamber 15 by a passage 24.
Patent GB-1199399-A (GB)
Title: Improvements in or relating to the Manufacture of Semiconductors.
IPC: B60P1/16
Filed: 1969-05-30
Abstract: 1,199,399. Semi-conductor devices. MATSUSHITA ELECTRONICS CORP. 30 May, 1969 [21 June, 1968], No. 27564/69. Heading H1K. In a process for the simultaneous diffusion of two impurities into a semi-conductor wafer, the source of one of the impurities is placed in an aluminium enclosure itself the source of aluminium, the second impurity. The enclosure is prepared from aluminium foil of uniform thickness so that the piece of the desired weight may be chosen by cutting out an appropriate area of foil. The correct amount of the other impurity source is placed on the piece of foil and wrapped in it. This other source may be appropriately doped silicon. By suitably choosing first impurities from B, In, Ga, As, P, Sb it is possible to produce P+P(N) or NP(N) sequences from N-type wafers of germanium or silicon.
Patent GB-408268-A (GB)
Title: Improvements in electric heating apparatus for the application of heat to regions ofthe human body
IPC: H05B3/34
Filed: 1932-10-04
Abstract: 408,268. Medical &c. heating appliances; electric resistances. ROBINSON, J. A., and NUNES, C. J. DA C., 48, Travessa de Santa Rita, Rio de Janeiro. Oct. 4, 1932, No. 27577. [Class 81 (ii).] An appliance employed for local heating of the body comprises a backing D of felt or the like and a piece of fabric F stitched thereto along preferably parallel lines o to form open ended pockets into which an electric heating cord a is loosely inserted in doubled lengths as shown. The cord a comprises a single length (about 10 metres) of insulated nickel-chromium or other resistance wire, doubled and twisted upon itself and connected through a flex k and a switch p with a plug l. The insulation may comprise asbestos or like strings spirally wound, or four or more such strings, about 1/16 inches thick, laid parallel to and around the wire and having a cotton or other covering. Alternatively two cords such as a but of differing resistance may be interplaited and connected by a three-wire flex to a three-pole switch at p such that either cord or the two cords in series may be used. The single or double cords may be employed independently of the backing D by winding round the part to be treated or by insertion of the end thereof into the ear.
Patent GB-503676-A (GB)
Title: Improvements in or relating to telephone receivers
IPC: H04R11/06
Filed: 1937-10-12
Abstract: 503,676. Receivers; alloys. STANDARD TELEPHONES & CABLES, Ltd., and ROBERTON, J. S. P. Oct. 12, 1937, No. 27704. [Class 40 (iv)] [Also in Group II] A telephone receiver comprises a metal frame member provided with a peripheral diaphragm seating and with an integral flange which extends inwardly from the seating and is recessed therefrom to help in forming a shallow chamber behind the diaphragm and which is apertured to form a passage for the polepieces, an insulating disc closing said aperture and closely fitting around the polepieces to complete the shallow chamber. The frame member 1 which is preferably a metal die-casting has a peripheral seating 19 for the diaphragm 9 and the flange is recessed to form the shallow chamber and a recessed central aperture covered by a sheet 8 of insulating material formed with holes through which the polepieces 2 pass. The polepieces,. which are T-shaped and are secured to a permanent magnet 3 by screws 12 passing through grooves 26 in the magnet, are provided with lugs through which pass screws 4 securing the magnet system to the flange of the frame member. The speech coils 24 are of the prewound type and are mounted on the lugs by a sheet 6 of insulating material. The frame 1 is secured to a handset 28 by means of two screws 13 passing through metallic bushes 14 insulated from the frame 1 by washers 15, 18 and a bush 27 and are threaded into metallic bushes 30 moulded in the handset. The leads from the coils are taken to tags 16 each of which is held by the spun-over end of the bush 14. The earcap 20 is of the type described in Specification 481,740 and has a central recess 22 connected to the space above the diaphragm by four holes 24. The narrow chamber beneath the diaphragm communicates with the space 25 around the magnet by means of an aperture 10 covered by a layer 11 of silk cloth as described in Specification 481,351. The polepieces 2 may be made of an alloy composed of 45 per cent of nickel and 55 per cent of iron or'of 36 per cent of nickel and 64 per cent of iron. The diaphragm is formed of an alloy composed of 48À4 per cent of cobalt, 48À4 per cent of iron, 0À7 per cent of manganese and 2À5 per cent of vanadium. Specification 404,011 also is referred to.
Patent GB-929427-A (GB)
Title: Improvements in or relating to direct current sources
IPC: H02M7/08
Filed: 1959-08-14
Abstract: 929,427. Charging and discharging batteries; protective arrangements; rectifying. PITTSBURGH PLATE GLASS CO. Aug. 14, 1959 [Aug. 25, 1958], No. 27805/59. Classes 38 (2) and 38 (4). A voltage-surge protection device for a rectifier system comprises an electrolytic cell 221 which may be a battery in series with a rectifier 222 so poled as to allow the cell to charge but not to discharge. Specificaiton 881,867 is referred to.
Patent GB-823724-A (GB)
Title: Improved weight-checking balance
Inventor: HARMAN ARTHUR EDWARD
IPC: G01G1/18
Filed: 1956-09-12
Abstract: 823,724. Weighing apparatus. UNIVERSAL SCALES Ltd. June 26, 1957 [Sept. 12, 1956], No. 27847/56. Class 143 In a balance provided with an indicator 51, 52, which shows the degree of out of balance of the beam 16 the fulcrum knife edge 17 is arranged above the knife edges 25 so that the sensitivity of the beam is reduced as the loads in the pans is increased thereby making the balance suitable for counting both notes and coins. The beam is provided with sensitivity and tare adjustment weights 33, 34, 35 and a dashpot 40. A spring loaded lever 61 is movable about pivot 63 by pressure on a key 62 to lower pan relieving pads 54, 55 away from the pans. The Specification describes adjusting devices for the knife edges.
Patent GB-652334-A (GB)
Title: A method of filling ammunition with molten explosive
IPC: F42B33/02
Filed: 1948-10-27
Abstract: 652,334. Filling ammunition. KOVORBNE A STROJARENSKE ZAVODY NA SLOVENSKU NARODNY PODNIK., and ODSTRCIL, B. Oct. 27, 1948, No. 27919. Convention date, Nov. 4, 1947. [Class 9 (ii)] Ammunition is filled with molten explosive while situated in a full or partial vacuum. The projectiles shells, cartridges, or the like are located for filling in a hermetically closed chamber from which the air is exhausted while the explosive in its container may be exposed to atmospheric pressure. After filling, during solidification of the explosive, the pressure in the enclosed chamber may be increased to atmospheric or above, and the pressure, e.g. air or inert gas, may be cooled below the solidification temperature of the explosive. Reference has been directed by 'the Comptroller to Specification 655,586.
Patent GB-304366-A (GB)
Title: Cinema film with combined sound and picture record and method of preparing the same
Filed: 1927-10-20
Abstract: 304,366. Beatty, W. E. Oct. 20, 1927. Records, combined phonograph and kinematograph; duplicating.-A combined sound and picture film for use in a diminutive projector for home use is made by photographic reduction of a standard film prepared for public performance in standard size apparatus. In reproduction, the diminutive film is run at a reduced speed.
Patent GB-332125-A (GB)
Title: Improvements in paper making machines
IPC: D21F1/04
Filed: 1929-09-14
Abstract: 332,125. Millspaugh, W. H. Sept. 14, 1929. Cylinder paper-machines.-In a paper-machine wherein an open ended vat 6 abuts against the wire 5 on a forming cylinder 1, adjustable plates 7 on the side walls of the vat are slightly divergent in the direction of rotation of the forming cylinder. The plates 7, which are of metal, &c. and which are fitted as facing plates to brackets adjustably fixed by slots and bolts 11, Fig. 2, to the vat bottom and by slots and bolts 13 to vat wall extensions, conform with the curvature of the forming cylinder, and are closely adjacent thereto, leakage of the pulp stock being prevented by fibre in contact with the wire, which fibre by reason of the divergence of the plates 7, is continually replaced by freshly deposited fibre as the wire travels upwards, thereby minimizing the frictional drag of the pulp sheet against the plates 7. The suction box of the forming cylinder has adjustable ends and is in two sections 3, 4, Fig. 1, which may have independently regulated suction if the sheet is to be bonded with others to form multi-ply paper. A rubber strip 15 is fitted to prevent leakage of pulp between the bottom of the vat and the forming cylinder. Specification 278,817 is referred to.
Patent GB-490976-A (GB)
Title: Improvements in and connected with automatic switch mechanism for through-flow electric water heaters
IPC: F24H9/20
Filed: 1937-10-14
Abstract: 490,976. Valves. NUENNKE, C. H. GROTH-. Oct. 14, 1937, No. 27988. Convention date, Oct. 14, 1936. [Class 135] [Also in Group XXXVII] A valve b when in the position shown allows water to flow through pipes a and c and lift a piston g to close a switch s to a heater, the water then flowing on through a pipe d past the heater (not shown) so that hot water flows out through pipes f and e; when the valve b is turned clockwise through 90, cold water flows straight from a to e and a forked rod o, having a wider portion embracing a slot on the piston rod, is moved horizontally so that a narrower portion of the fork engages the slot to prevent the switch s being actuated. The movement of the rod o may also cause a contact t to disengage contacts u in the supply circuit.
Patent GB-884766-A (GB)
Title: Photographic printing apparatus
Inventor: BOUTILLIER ARTHUR LE
IPC: G03B27/20
Filed: 1958-09-01
Abstract: 884,766. Photographic contact printing apparatus. COSSOR Ltd., A. C. Aug. 25, 1959 [Sept. 1, 1958], No. 28028/58. Class 98(2). A photographic contact printing apparatus comprises two substantially air tight boxes each containing a source of light and having in one of its sides a window of flexible material for illumination by the source of light, the boxes being mounted parallel to each cther with their windows opposed to one another, the boxes being drivable toward and away from each other in such manner that the windows can co-operate to hold between and against one another a negative together with a lamina workpiece having a photosensitive coating thereon and means being provided for establishing a super-atmospheric pressure simultaneously in both boxes. As shown in Fig. 3, two boxes 13, 14 each with flexible transparent windows 15 and light sources 16 are mounted on rollers 12 for movement in a frame 11. The two boxes are movable towards each other against the tension of springs 36 by means of pneumaticaily operated cylinders 26, each having a double acting piston, and being coupled to the respective boxes by way of quadrant gears 31, rods 32, cranks 33 and rollers 34 which bear against bars 35 on said boxes. After a workpiece 41, having a photosensitive (for example a photoresist) coating thereon, has been positioned as shown in Fig. 3, for example by a transfer machine, the boxes are moved towards each other by operation of the control cylinders 26, the workpiece is accurately located by dowels 22 which pass through openings 23, 24 in the windows and openings 42 in the workpiece to engage in sockets 25, the negatives 45 are firmly pressed against the workpiece 41 by pressure applied to the boxes 13, 14 through flexible tubes 19, and the lights 16 are switched on for exposure. After the exposure the air pressure in boxes 13, 14 is released, the boxes are moved apart, and the workpiece is removed by the transfer machine to the next station. If the photosensitive coating has a low sensitivity, the light 16 may be left on continuously. For cooling the boxes 13, 14 water jackets 17 are provided. Alternatively the air used to increase the pressure in the boxes may be :arranged to provide forced air cooling.
Patent GB-279493-A (GB)
Title: Altitude measuring mechanism combined with a telemeter
IPC: C10G7/00
Filed: 1927-10-21
Abstract: 279,493. Soc. d'Optique et de MÚcanique de Haute PrÚcision. Oct. 21, 1926, [Convention date]. Range-finders.- Coincidence rangefinders are provided with a mechanism for indicating the height of an aerial target by enabling the displacement of the deflecting prism to be controlled hy the manipulation of a milled head the rotation of which is a function of the altitude of the target. The movement transmitted to the deflecting prism H is obtained from the difference between the two translational movements proportional respectively to the quantities cos (s-#) and cos (s+#), where s is the angle of site and # a function of the altitude. The mathematical basis of the mechanism is set out in the Specification. When aiming, the range-finder is rotated in its bearings R, carrying with it members P, P'. The wheels D, D<1> do not not take part in this movement since they engage the wheel E mounted on a shaft r integral with the collar R, and which can only turn when manipulated by the head M. The wheels B, B' roll upon the wheels D, D' and turn through an angle equal to the angle of site S. On the wheels B, B' are mounted wheels A, A<1> engaging annular wheels of twice the diameter of the wheels A, A<1> on the members P, P<1>. Rotation of the head M effects rotation of the wheel E by the worm V and indicates on the pointer i the altitude on a scale on the wheel E. The axes of the pulleys Q, Q<1> move through distances proportional to cos (s-#) and cos (s+#) and are so connected to the deflection prism carriage N that it is moved a distance proportional to the difference of the movements of the axes of the pulleys Q, Q<1>. The operation of the head M by this means indicates the range on the scale attached to the deflection prism carriage N and also the altitude on the scale on the wheel E against the pointer i. The horizontal distance of the target may also be obtained by substituting for the angle the angle (90-s).
Patent GB-335726-A (GB)
Title: Improvements relating to electric condensers
IPC: H01G4/38
Filed: 1929-09-16
Abstract: 335,726. Haefely et Cie, Akt.-Ges., E. Oct. 5, 1928, [Convention date]. Condensers. - Multiple - unit condensers of the oil - immersed wound type are mounted so as to lie with their axes horizontal, to prevent any moisture from falling on to their flat sides. In the Figure, units a are mounted so that their terminal projections e are held on rods d, with spacing sleeves g, supported by the cover b of the oil-container c. The units are connected in delta or other formation by wires from the rods d to terminals i. Specification 313,600 is referred to.
Patent GB-443480-A (GB)
Title: A new or improved method of and apparatus for bending glass tubing
IPC: C03B23/06
Filed: 1935-10-11
Abstract: 443,480. Glass manufacture. BRITISH THOMSON - HOUSTON CO., Ltd., Crown House, Aldwych, London. Oct. 11, 1935, No. 28137. Convention date, Oct. 12, 1934. [Class 56] [See also Group XI] A method of bending glass tubing consists in heating uniformly the portion of the tube to be bent until the glass is softened, increasing the pressure within the tube, and then bending the tube to the required configuration. The apparatus comprises a heating tube 1, Fig. 4, composed of a helically wound flat conductor of any suitable resistance material, such as nichrome, enclosed in a heat-insulating jacket 2 of woven asbestos. The coils of the tube 1 are oxidized on the surface to prevent short circuiting between turns. The glass tube 8 is inserted in the heater 1, and the ends 3, 4, Fig. 1, of the coil are connected to flexible leads 5, 6 from a supply circuit. Woven asbestos sleeves 9 are placed over the ends of the glass tube to prevent them from cooling unduly, and the ends of the tube are closed by stoppers through one of which is inserted a pipe 12 connected to a supply of compressed air. When the glass has been heated to plasticity, air pressure is admitted to its interior, and the whole assembly is lifted and is shaped around a forming-device, the air pressure preventing the walls of the tube from collapsing. The glass is then allowed to cool below its lower annealing temperature before the heating coil is removed. Specification 210,404, [Class 56], is referred to.