baber/WOPTO huggingface dataset:
Patent GB-479052-A (GB)
Title: Improvements in thermal power plants, in which a gaseous working medium, preferably air, continuously describes a closed cycle under pressure above atmospheric
IPC: F02C1/10
Filed: 1936-07-30
Abstract: 479,052. Elastic - fluid turbines. BURGESS, A. F. (Akt.-Ges. fiir Technische Studien) July 30, 1936, No. 21104. [Class 110 (iii)] A power plant comprises one or more turbines 3 driven by a gas, preferably air, at a pressure above atmospheric, heated in a furnace 2, the exhaust from the turbine entering a heatexchanger 7 to heat up gas compressed in a compressor 5, which is driven by a turbine but at a higher speed than the latter drives a. generator 4. A motor 45 on the compressor shaft is used for starting-up purposes. Furnace gases are passed through a heat-exchanger 18 to heat air delivered by a blower 20 to the furnace. Cooling water is circulated through a cooler 25, and also through jackets around the compressor. In a second arrangement, the turbine is arranged in two casings, the high-pressure turbine driving the compressor at a higher speed than the low-pressure turbine drives the generator. Gearing connects the two turbines. Fig. 3 shows a plant in which two high-pressure turbines 3a, 3aa, in parallel, drive two compressors 5a, 5b, which are in series. The low-pressure turbine may be arranged in two casings in parallel or series and drive one or two generators. Fig. 6 shows a radial-flow turbine with oppositely-running rotors 3a, 3b, which rotate at different speeds. A motor generator 53 is arranged on the slower shaft, and is connected to the same net as the generator 4. The slower shaft may drive auxiliary machinery.
Patent GB-471341-A (GB)
Title: Improvements in or relating to gland packings
IPC: F16J15/20
Filed: 1936-07-31
Abstract: 471,341. Stuffing-box packing. ARMSTRONG, F. G. G. July 31, 1936, No. 21179. [Class 122 (v)] A packing comprising a facing 13 of fabric canvas, leather, &c. united to a resilient backing 14, is compressed radially to enter its housing 21 whereby the backing exerts a radial pressure on the facing strip in use. British Specification 11824 /05, [Class 122], and U.S.A. Specifications 1,912,462 and 1,969,797 are referred to.
Patent GB-500048-A (GB)
Title: Improvements in or relating to wall-boxes and junction-boxes for use in connection with electrical wiring conduits
IPC: H02G3/12
Filed: 1937-07-31
Abstract: 500,048. Junction boxes; switch cases. CRABTREE & CO., Ltd., J. A., McLOUGHLIN, H. F., and HARRISON, B. G. July 31, 1937, No. 21274. [Class 38 (i)] [Also in Group XXXVII] A shallow box a for mounting on the surface of brickwork b for embedding in the plaster c has a localized enlargement e that increases the depth of the wall f of the box at the point or points of entry of the cable, so that the conduit d that is recessed into the brickwork can be screwed into the box. The enlargement fits into the conduit channel or into the mortar space.
Patent GB-940931-A (GB)
Title: Improvements in the manufacture of germanium semi-conductor devices
Inventor: OLIVER CLIFFORD RHODES
IPC: H01L23/29
Filed: 1961-06-13
Abstract: 940,931. Semi-conductor devices. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. April 4, 1962 [June 13, 1961], No. 21296/61. Drawings to Specification. Heading H1K. A method of forming a junction region in a body of germanium includes the steps of producing an epitaxial layer of silicon on the surface, providing a coating of silicon dioxide on part of the layer, and diffusing impurity material through the uncoated part of the silicon layer into the germanium. The epitaxial layer is deposited by heating the germanium wafer in an atmosphere of a silicon halide to a temperature sufficient to cause the halide to dissociate. The layer is then oxidized by heating in an atmosphere of water vapour or oxygen preferably the former. Suitable areas of the oxide are then removed by a photo resist technique, to expose the silicon, through which the impurity is then diffused. This produces a diode. The technique may then be repeated to diffuse a second impurity into the already diffused region to produce a transistor. The method may be applied to diffuse impurities into a plurality of discrete regions of a larger wafer which is then " diced " to produce a plurality of discrete devices. The oxide coating which remains is not removed, but left to provide a protective coating for the point where barrier layer intersects the surface of the layer. Ohmic contacts with the various regions may be made by vapour deposition on to areas, exposed in the manner described above.
Patent GB-757456-A (GB)
Title: Improvements in or relating to electrical drive arrangements for machine tools
IPC: B23Q5/14
Filed: 1954-07-21
Abstract: 757,456. Control of two motors. FISCHER AKT.-GES., G. July 21, 1954 [Aug. 29, 1953], No. 21298/54. Class 38(3) A machine tool is driven by a variable speed motor through gearing providing two speed ranges, a constant speed motor taking over the drive while the change is made from one range to the other by means of clutches. As shown, machine tool shaft 2 is driven at medium speed by constant speed A.C. motor 3 through belt 5 and gears 10, 21, 15, 16 whenever clutch 24 is energized, i.e. when sliding contact 37 engages contact 40. Above this speed, the drive is from motor 4, belt 6, gears 12, 20, 15, 16 when clutch 23 is energized, i.e. when contact 37 engages contact bar 39, .while below said speed the drive from motor. to gears 15, 16 is via gears 13, 22 when clutch 25 is engaged by engagement of contacts 37 and 41. The speed is varied by handle 47, which not only slides the contact 37 over contacts 39, 40, 41 but also rotates the contact 31 on the rheostat 32 in the circuit of field winding 46 of motor 4, the speed of motor 4 being variable from maximum to minimum throughout all the time contacts 39, 41 are engaged by the slide 37.
Patent GB-1525200-A (GB)
Title: Steam curling iron
IPC: A45D1/04
Filed: 1977-05-20
Abstract: 1525200 Steam curling BRISTOL-MYERS CO 20 May 1977 [14 Feb 1977] 21329/77 Heading A4V In a steam curling iron wherein liquid is delivered from a reservoir within a tubular member 312 to a chamber 112 from whence it is vapourized by an electric heater (88, 118) to provide steam at apertures (134) on the surface of the iron, a valve 336 is provided in the liquid delivery passage 330, the valve being controlled by a bi-metallic element 504 so that the valve can only be opened when the heater temperature is sufficient to vapourize the liquid. As shown, upon actuation of a plunger (320), a piston 324 forces the liquid through the passage 330 the valve 336 opening against a biasing spring 340 but if the heater has not reached a correct high temperature the bi-metallic element 504 moves Fig. 7 (not shown) a tube 502 against the valve and prevents its opening. The iron includes a clip (42) to secure the end of a tress of hair wound around the iron, the clip being movable both pivotally and laterally by a button (30). The iron also includes a thermostat (90), a fuse (92) and a neon lamp (94).
Patent GB-460450-A (GB)
Title: Improvements relating to taps or faucets
IPC: F16K1/02
Filed: 1935-07-27
Abstract: 460,450. Valves. RUSSELL & CO., Ltd., J. and BARTLETT, J. A. July 27, 1935, No. 21402. [Class 135] A draw-off tap or faucet comprises a lift valve member c actuated by a screwed spindle e engaging a nut j rotatably mounted in the casing. The spindle is held against 'rotation by the engagement of a squared part with a guide member h adjustably clamped in position by a screwed ring m The manipulating cap which encloses the parts h, m is rotatably mounted on a cylindrical part of the casing, and is coupled to the rotatable nut by a pin k passing through a slot in the casing.
Patent GB-1084923-A (GB)
Title: Improvements in or relating to fastener devices
IPC: F16B19/10
Filed: 1966-05-13
Abstract: 1,084,923. Stud & socket fastenings; clamps. TINNERMAN PRODUCTS, Inc. May 13, 1965 [May 14, 1965]. No. 21456,66. Heading E2B. A fastener 2 comprises a loop-like body member 6 having cam means 28 projecting inwardly of the loop, and a drive-pin member 4 integrally moulded with the loop-like body to close the open end of the loop and adapted to be sheared therefrom and driven between the cam means to cause spreading deformation of the body member 6. A shank 16 of the pin member may be of any suitable cross-section and flanges 24, 26 on the body member are recessed at 27 to receive a chamferred stem 12 of the drive pin. In other arrangements, Figs. 5- 9 (not shown), the base of the loop includes an internal lug (36) for limiting inward movement of the drive pin, the lugs (30, 22) of the loop include external lugs (40) and cam means (44) cooperate with recesses (42) in the shank of the drive pin 16. In other arrangements Figs. 10 - 13 (not shown), a pair of the fasteners are interconnected by a strap member (52) and in this form the strap bridges a trough (50) to retain wires or cables therein. In another arrangement, Fig. 14, the drive pin includes a webbed body 90, 92 surmounting a shank 102 which is adapted to enter a loop-like body member 82 mounted in a support panel (124) Fig. 17 (not shown), the body 90, 92 passing through aligned holes in a lining (120) and a re-inforcement (122) of a deformable material with which flexible wings 96 on the body 90, 92 engage to secure the lining and reinforcement to the panel (124).
Patent GB-500431-A (GB)
Title: Improvements relating to cinematograph projection apparatus
IPC: G03B21/40
Filed: 1937-08-04
Abstract: 500,431. Kinematograph apparatus. BRITISH THOMSON-HOUSTON CO., Ltd., DAVIES, B. R., and EADE, S. H. Aug. 4. 1937, No. 21515. [Class 97 (i)] A shutter, located so as to produce " aperture obscuration '' or " partial aperture obscuration," has straight sided blades which, in one position only, just completely mask the light beam. '' Aperture obscuration " is obtained when the shutter is placed so that illumination of the projection screen increases and decreases uniformly over the whole screen surface, and " partial aperture obscuration " is obtained in any other position of the shutter in which the image of its edge on the screen is unfocused. The edges of the blade a may be just tangential to the circle of light b in its plane, and may intersect the circumference of the circular portion c of the shutter at points on radii 70‹ apart. The graph, Fig. 2, indicates the percentage of possible light passing to the screen at various positions of the shutter. blade, and shows the substantially sinusoidal wave form and instantaneous cut-off produced. Specitication 4597/15, [Class 97 (i)], is referred to.
Patent GB-293588-A (GB)
Title: Improvements in angle indicators for variable pitch propellers
IPC: B64C11/30
Filed: 1927-08-16
Abstract: 293,588. Turnbull, W. R. Aug. 16, 1927. Screw propellers.-The setting of the blades of a variable pitch screw propeller is indicated on an ammeter as a result of a pointer on the blade moving over a resistance coil on the boss. A spring pointer 14 on the blade 10 contacts with a resistance coil 13 on the boss 11, the resistance being in a circuit which includes an ammeter which is calibrated to give blade settings. Specification 293,587 is referred to.
Patent GB-1270479-A (GB)
Title: Method of and apparatus for producing a carrier bag provided with carrying handles
Inventor: FRANSON OTTO ELVING
IPC: B65D33/06
Filed: 1970-05-05
Abstract: 1,270,479. Plastics carrier bags. MUNKSJÍ A. B. May 5, 1970 [Jan. 20, 1970 and Feb. 20, 1970], No.21589/70. Heading A4G. A plastics carrier bag 1 is provided with one or more reinforcing folds and/or strips 5 around its opening edges, which folds and/or strips are welded to the bag by welds 7 which are inclined to the edge of the bag and between which are slits or notches 6 which allow the folds or strips to be pulled outwardly and upwardly to provide handles 13. The welds 7 are preferably at an angle of 45 degrees to the edge of the bag which may have bellows folded sides and bottom. Machines are described which; slit a tubular film to form a folded sheet, fold and/or apply reinforcing strips to the edges of the sheet cut the notches, make the welds and weld and transversely sever the sheet to form the bags; which transversely sever a flattened tubular film, weld one transverse cut to form the bottom of the bag, apply reinforcing strips to the other cut and weld and notch the strips to form the handles; and which longitudinally fold a flat film into the folded sheet of the first embodiment and then similarly forms the handles and bags. The handles and notches may be on the long sides of the bag as in Fig. 12 or across the transverse weld and cut as in Fig. 28.
Patent GB-638378-A (GB)
Title: Method and apparatus for straightening threads
IPC: D06C29/00
Filed: 1947-08-07
Abstract: <PICT:0638378/IV (c)/1> Apparatus for use in straightening threads of wool, yarn, twine and like organic fibrous materials comprises a base 10 having a groove 14 formed therein and constituting a guideway for the thread to be straightened and along which the thread may be drawn, a cover 11 for the guideway arranged to grip lightly a thread in the guideway and thereby to cause tension to be applied to the thread as it is drawn along the guideway, connecting means 13 by which the base may be connected to a supply of steam and a conduit in the base leading from the connecting means to the guideway. The groove 14 has perforations 15 for the passage of steam into the guideway.
Patent GB-532699-A (GB)
Title: Improvements in storage battery cells and liquid level control devices therefor
IPC: H01M2/12
Filed: 1939-07-26
Abstract: 532,699. Batteries. RICHARDSON CO. July 26, 1939, No. 21757. Convention date, June 1. [Class 53] An accumulator filling orifice is provided with a tube 10 depending to the liquid level 15 from a shoulder. The shoulder is perforated as at 13 to the interior of the cell, and a weighted member 14 is provided which, when the cap 17 is removed, covers the perforations. With the cap 17 in place the washer 14 is moved to uncover the holes. This may be effected by causing a projection 20 to tilt an edge of the washer into a groove (Fig. 2), or by providing a slanting surface 21 on the shoulder, a smaller part 22 remaining flat, or slanting in the reverse direction (Fig. 4).
Patent GB-793904-A (GB)
Title: Transistor switching circuit
IPC: H03K3/284
Filed: 1956-07-13
Abstract: 793,904. Transistor single-stable state and switching circuits; frequency detectors. ATOMIC ENERGY OF CANADA, Ltd. July 13, 1956 [Aug. 6, 1955], No. 21796/56. Classes 40 (5) and 40 (6). In a circuit responsive to an input pulse to provide a low impedance connection between terminals 28, 29 a normally non-conducting NPN transistor 20 is connected at its emitter to the emitter of a PNP transistor 27 with a coupling 26 arranged between the collector of one transistor and the base of the other and with a load 25 in the collector circuit of the first transistor. In the normal condition transistor 20 is biased off by current flowing through diode 30 and resistor 32, transistor 27 being biased similarly by diode 33 and resistor 34. A positive-going input pulse tends to cause transistor 20 to pass current so that the collector potential falls, causing the base potential of transistor 27 to fall so that the latter transistor also conducts. The regenerative action continues until the collector of transistor 20 is bottomed. Capacitors 39, 40 are normally charged to a positive potential near that of the supply and discharged through diodes 41, 42 when the transistors are rendered conducting. The potential of the collector of transistor 20 then rises until a potential is reached when the circuit can restore to its normal condition in a regenerative manner. Since the leakage current through resistor 25 may be considerable the circuit of the meter 38 may be separated from the switching circuit, Fig. 2 (not shown). In a modification, Fig. 3 (not shown), negative-going pulses are applied to the base of the PNP transistor and the load 25 is transferred to the collector of that transistor. The circuit may be triggered by pulses applied to the collector or emitters of either transistor. The capacitor 43 operates to average the current through meter 38 and the charging time constants of capacitors 39 and 40 are made different so that the current through meter 38 is logarithmically dependent on the pulse rate.
Patent GB-169064-A (GB)
Title: Improvements in or relating to umbrellas
IPC: A45B19/10
Filed: 1920-07-20
Abstract: 169,064. Poell, H. F. July 20, 1920. Folding and like umbrellas; sticks.-A folding umbrella has a stick which is partly folded and is partly telescopic, and folding ribs. The stick comprises a handle section 25, Fig. 6, and a middle section 23, Fig. 5, telescoping into an upper section 24, to the upper end of which a ferrule section is screwed and is secured by a short chain 62. The sections 25, 23 have flanges 30, 37, and are connected by a latch 40. When the latch 40 is removed, the rod 32 inside the tube 25 may be drawn outwards; the link 34 connecting the rod 32 to the section 23 then enables the handle to be folded over. The section 23 is grooved, and contains a spring 46, the upper end of which engages with a pressed-in rib 45 at the lower end of the section 24. The upper ends of the ribs are secured to the section 24 by a' flange 55 and ring 56 above the cover, and a pivot ring 51 in a grooved ring 49 below the cover. The stretchers 78 are secured at their lower ends by a pivot wire ring to a collar 74 on a sliding sleeve 63, which carries a spring 70 and trigger 67 for operating a bolt 69 holding the sleeve in its higher and lower positions. Each of the ribs is made in two sections 79, 80, Fig. 7, connected by pairs of links 81 and bridging and coupling sleeves 82. The sections 79 have spring detents 84 engaging with the sleeves 82, to which the stretchers 78 are connected. The links 81 may be of V-section, the sides being inwardly pressed to form the pivots, or consist of one plate with two pivot pins on one side.
Patent GB-849150-A (GB)
Title: Improvements in or relating to the separation of acidic gases from gaseous mixtures
Inventor: THIRKELL HARRY
IPC: C10K1/12
Filed: 1958-07-08
Abstract: Acidic gases, such as CO2 and H2S are absorbed from a gas mixture with an aqueous solution of a non-volatile alkali-metal salt of a weak acid by absorber 1.  The absorbent liquor is passed downwardly through heated regenerator 2 and the regenerated liquor is returned to absorber via conduit 34 while the purified gas leaves through conduit 17.  The desorbed gases and steam leave regenerator, <PICT:0849150/III/1> and are cooled in vessel 4, and are further cooled in cooler-condenser 5 before separation from condensate in vessel 6. The regenerator is heated by steam at 27, steam from reboiler 3 from heating element 24 with heating fluid which may be untreated gas mixture, and reflux water at 29 which may be condensate from separator 6.  The heated scrubbing water and condensate from vessel 4 may be flushed in box 7 and wholly or partially returned to the regenerator at 27.
Patent GB-282608-A (GB)
Title: Improvements in the cooling arrangements of internal combustion engines
IPC: F01P9/04
Filed: 1927-08-19
Abstract: 282,608. Hall, S. Z. Aug. 19, 1927. Vaporizers, external. -A liquid-fuel tank c is mounted on, or cast integrally with the water jacket b of a cylinder head.
Patent GB-806984-A (GB)
Title: Improvements relating to charge tube sealing plugs for nuclear reactors
Inventor: WATTS DENNIS MICHAEL
IPC: G21C13/067
Filed: 1956-07-16
Abstract: 806,984. Nuclear reactors. ENGLISH ELECTRIC CO. Ltd. July 11, 1957 [July 16, 1956], No. 22004 /56. Drawings to Specification. Class 39(4). In a nuclear reactor of the type in which the coolant fluid is contained under pressure in a shell, charging is effected through tubes passing through the shell and shielding. Each tube is fitted with a sealing plug which is maintained in position against the thrust of the pressurized coolant by a number of latch members which are mounted in the upper surface of the plug and which engage the inner surface of the tube. The plug consists of a cylindrical metal container filled with concrete and rubber rings attached to the container form a seal with the tube inner surface. Removal of the plug is effected by a tool which simultaneously grips the plug and releases the latches. With the plug in position, the outer end of the tube is closed by a cover plate.
Patent GB-1176212-A (GB)
Title: Improvements in or relating to Agricultural Pick-Up Vehicle
IPC: A01D90/02
Filed: 1967-05-11
Abstract: 1,176,212. Agricultural pick-up vehicle. TEXAS INDUSTRIES Inc. 11 May, 1967 [2 June, 1966], No. 22028/67. Heading B8E. An agricultural trailer has a crop pick-up mechanism 23, a feeding mechanism 25 and a loading space, the floor 16, Fig. 2, of which has a portion inclined upwardly and rearwardly from the pick-up mechanism which portion merges into a horizontal portion at a level above the wheels 4. The pick-up mechanism is pivotally mounted at 18 and is supported by wheels 20 and has rotatable tines 21 operating through a stripper plate. The feed mechanism has tines 32 extending through scraper plates 38 and mounted on a tube 31 on a gear-wheel 29 and connected to the vehicle by connecting rods 35 so that on rotation of the wheels 29 the tines follow the path 42. The crop is picked up and fed by the tines 21 over a plate 24 and then by the tines 42 to the floor 16 along which it conveyed by a chain conveyer 8 which has a run on either side of the floor 16 and which is guided where the floor inclinationchanges by guide plates 14, 15 or in a modification by a guide roller.
Patent GB-670574-A (GB)
Title: Improvements in and relating to the manufacture of finned tubes
IPC: B23K11/00
Filed: 1947-08-08
Abstract: 670,574. Making gilled tubes. BROWN FINTUBE CO. Aug. 8, 1947 [March 12, 1940; Feb. 26, 1941], Nos. 22029/47 and 22030/47. Classes 83 (ii) and 83 (iv). [Also in Group XIII] Welding.-In a method of spotwelding radiator fins to metal tubes each weld is made in rapid succession at such a speed that the tube at the welding point is not softened by conduction of heat from the preceding weld. The combined areas of the welds are substantially equal to the cross-sectional area of the fin and the perimetric length of the welds is equal to the total length of the fin. In a machine, Fig. 7, of known construction for carrying out the method a length of tubing is guided into the machine by rolls 42 with channelshaped fin members positioned by rolls 40. Welding rolls 31, 32 with thyratron control for determining the time and duration of the flow of current effect spot-welding at a speed high enough to prevent softening of the tube. As an example, low carbon steel fins 0.031. inch thick are welded to a tube of similar material with an electrode pressure of about 1000 lbs. and current 12000 amps at 6-8 volts. Each weld is made with a duration of current of 3 cycles to 60 cycle single phase A.C., the current being shut off for a period of 3 cycles between the welds. A tube feed of 18-20 ft. per minute being sufficient to prevent the tube being damaged and deformed. The speed of the tube may vary between 12- 20 ft. per minute with 3-12 welded areas per inch. The spot welds may be spaced apart or may overlap to give a welded area with scalloped edges, the combined areas of the welds being substantially equal to the longitudinal cross-sectional area of the fin flanges and the total perimetric length of said welds exceeding the total length of the flanges.