baber/WOPTO huggingface dataset:
Patent GB-1012709-A (GB)
Title: Automatic gain control system for cascaded transistor amplifier
IPC: H03G3/30
Filed: 1964-06-05
Abstract: 1,012,709. Transistor amplifying circuits. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. June 5, 1964 [June 8, 1963], No. 23409/64. Heading H3T. In a transistor amplifier with first and second stages, i.e. a radio receiver with R.F. and I.F. stages 11, 27 respectively, the amplified signal is detected, i.e. by diode 29 and used to provide a D.C. automatic gain control voltage to vary the gain of both stages inversely as the amplitude of the detected signal, the control voltage applied to the first stage being delayed, i.e. by diode 7 which is biased conductive from the supply line over resistor 9. According to the invention, D.C. conducting means are provided whereby the gain of the second stage increases as the gain of the first decreases; i.e., as shown, resistor 18 is provided in the collector circuit of transistor 11 and the potential at the collector is fed to the base of the second transistor 27 via resistor 17. For large signals the transistor 11 is cut off and acts as a capacity coupling and the gain of the second stage 27 then reduces as the detected signal level increases: the arrangement gives an improved signal to noise ratio and reduced cross-modulation.
Patent GB-773931-A (GB)
Title: Improvements in or relating to sewing machines for the production of tape-reinforcedbutton holes
IPC: D05B3/08
Filed: 1955-08-15
Abstract: 773,931. Sewing machines. PFAFF AKT.- GES., G. M. Aug. 15, 1955 [Sept. 11, 1954], No. 23454/55. Class 112. In a buttonhole sewing machine comprising a work-feeding lever 2 carrying a workengaging foot 8, tape 9 for reinforcing the buttonhole is carried by an arm 3 which is secured at one end, by screws 5, to lever 2 and extends beyond the sewing needle, the other end of the arm being provided with a recess 7 which surround the foot 8. Tape extends from a reel 16 through a slotted post 15 and through a slot provided in a wired leaf spring 10, the tape then passing between the front end of the latter and the arm, and the pressure of the spring against the arm being regulated by a knurled nut 14. The tape then passes through a loop 20 situated at the rear end of recess 7 and is severed in a clip 18 provided at the front end of recess 7. The tape may be sewn either to the upper or to the lower side of the material.
Patent GB-909669-A (GB)
Title: A doffing device for use in spinning, twisting, doubling and like textile machines
Inventor: SIMPSON ERNEST CHARLES
IPC: D01H1/38
Filed: 1960-07-06
Abstract: 909,669. Yarn-holding devices. SCRIVEN, F. W. A. July 6, 1960, No. 23577/60. Class 120 (2). A device on which a few turns of yarn are wound after completion of a spinning &c. operation and before doffing, so that when the bobbin is doffed the yarn is severed, comprises a cylindrical member 62 which is part of, or adapted to fit around the spindle below the bobbin, and has one or more circumferential grooves or threads. Axial grooves e.g. 68 are provided so that accumulated yarn can be removed by running a knife down one of them. In the form shown, the member is fixed to the spindle and has recesses in its lower face to engage the driving members on the spindle normally engaging the lower ends of the bobbins. Specifications 854,968 and 908,981 are referred to.
Patent GB-410997-A (GB)
Title: Improvements in and relating to leaf springs
IPC: F16F1/24
Filed: 1933-08-25
Abstract: 410,997. Lubricating springs. GREGAN, D. A., Strathmore Street, Morrinsville, New Zealand. Aug. 25, 1933, No. 23670. Convention date, Sept. 13, 1932. [Class 12 (ii).] The intermediate leaves of a spring comprise leaves 2, 4, each with a longitudinal lubricant slot 2<a>, 4<a>, and leaves 3, 5, having orifices 3<a>, 5<a>, communicating with the slotted leaves next below at or near the outer ends of the slots. The central clamping-bolt 8, is a neat fit in the top and bottom leaves and in the leaves 3, 5 having the orifices. The slots 2<a>, 4<a> extend around one side of the bolt 8.
Patent GB-851135-A (GB)
Title: Treatment of fuel oils
IPC: C10G31/06
Filed: 1958-07-23
Abstract: The tendency of a residual fuel oil to deposit a waxy sludge on storage is reduced by chilling the oil from at least 110 DEG F., preferably at least 140 DEG F., to a temperature not higher than 90 DEG F., preferably not higher than 70 DEG F., at a rate of at least 0.1 DEG F. per minute, preferably at least 1 DEG F. per minute.  The oil may be chilled by passing it through heat exchange equipment cooled by a flow of cold water.  Examples are given.
Patent GB-297953-A (GB)
Title: Improvements in or relating to hydraulic lifting jacks
IPC: B66F3/42
Filed: 1927-09-10
Abstract: 297,953. Lloyd, H. J. Sept. 10, 1927. Jacks.-A hydraulic jack of the type in which the pump and ram cylinders and the reservoir are formed in a single casting and the fluid passages and valve chambers are formed in the casting by drilling, has the valve chambers with inlets at one end and co-axial enlargements at the other end housing a cover secured by a screwed plug. The reservoir 5 is formed in the upper part of the casting and the ram cylinder 6 in the lower part, the pump cylinder 4 occupying an intermediate position. A passage 10 drilled in the wall of the reservoir is normally closed by a spring-pressed valve 16, Fig. 3, in an enlarged valve chamber 9, the spring abutting against a cap 12 having a flange 13 engaging a corresponding groove in the casting and the cap being secured by a screwed plug 15. The valve chamber 9 is connected by a drilled passage 7 with the pump cylinder 4 and by a continuation passage 23 with the ram cylinder 6, a second spring- pressed valve 20 being interposed between the pump and ram cylinders. The pump is operated by a lever 25 pivoted to the casting and connected by linkage 28 to the pump plunger 24. A foot lever 41 pivoted to the casting has a forked end 43 engaging a spindle 39 normally pressed downwards by a spring and controlling a valve which normally closes a laterally arranged vertical passage, not shown, connecting the reservoir and ram cylinder, this valve acting as a safety valve and also when actuated by the foot-lever effecting the lowering of the load.
Patent GB-1515037-A (GB)
Title: Variable information indicator devices
IPC: G09F3/20
Filed: 1976-06-10
Abstract: 1515037 Indicators KORD DESIGNERS LTD 10 June 1976 23961/76 Heading G5C An indicator, for showing retail prices or for use as a perpetual calendar, has a front panel 2 with spaced apertures 10 at positions 6 at which information bearing flexible strips 8 are threaded to display selected parts of the information when the strips are manually advanced through the apertures. Preferably strips 8 are endless bands which are concealed in an enclosure 16 having sockets 26 into which fit projections 24 on panel 2. An open-ended folded cardboard version of the indicator is disclosed for use as a calendar. A slot 28 in either form receives an information tab.
Patent GB-360083-A (GB)
Title: Improvements in steam boiler and other furnaces
IPC: F23M3/00
Filed: 1930-08-12
Abstract: 360,083. Firebridges. CROSTHWAITE ENGINEERING & FURNACE CO., Ltd., York Street Iron Works, Leeds, and GRIFFITHS, W. W. R. F., Lyncott, Salford Road, Bidford-on-Avon, Warwickshire. Aug. 12, 1930, No. 24088. [Class 51 (i).] In a boiler furnace having firebars with longitudinal passages supplying air under pressure into an air chamber and atmospheric air into a vertical space formed in a divided firebridge, the firebridge is divided into front and rear portions 2, 3 with a vertical space 4 between, the rear portion 3 being greater in height than the front portion and corbelled on its inner surface to reduce the width of the air space 4 at the top and the front portion 2 being supported on the firebars 7. The firebars are of the kind described in Specifications 21514*/00, 21002/04, 6635/05 and 1987/07, [all in Class 51, Furnaces and kilns], and are provided with air passages 12 which deliver air under pressure through passages 14 into separate compartments of the chamber 8 having removable cover plates 19 provided with tapered holes 22 through which the air passes into the space 4. Atmospheric air passes through passages 13 in the firebars and through passage 17 in the chamber 8 directly into the space 4 where it mingles with the pressure air before escaping in a heated condition from the top of the space 4 to the flue 1.
Patent GB-422720-A (GB)
Title: A method of and apparatus for conditioning air in order to stimulate the transmission of heat of the human body to the surrounding air by drying the said air
IPC: F24F3/14
Filed: 1933-08-31
Abstract: 422,720. Conditioning air; cooling and drying air. FERGUSON, G., 1, IJzerenmanweg, Vught, Holland. Aug. 31, 1933, No. 24216. [Class 137] [See also Groups XII and XIII] A method of exchanging the heat content of two kinds of air which differ substantially in moisture content but comparatively little in temperature, consists in cooling the drier air by moistening in a saturator, this cooled air being passed into a heat-exchanger in which the moister air is cooled and its moisture content decreased. The dry room air enters a saturator 1 in which it is cooled, through an inlet 8, and is sprayed with water from a sprayer 5 before passing through Raschig ring packing 4, and entering one of two heatexchangers 2, 3, through which it passes from the bottom to the top escaping by outlet 15 or 16. The fresh outer air enters by inlet 17 or 18, is cooled and dried, and leaves by outlet 19 or 20, being further dried before being supplied to the room to be cooled. Sprays 21, 22 are provided to ensure that the internal air to be carried away remains saturated with water vapour in its course through the apparatus. In the heat regenerator shown in Figs. 2 and 3, around a cylindrical portion 31 are disposed segmental spaces 34 filled with packing. A rotary valve consists of two pairs of plates 36, 37, and 39, 40 with an intermediate plate 38. The lower pair have openings 43, 44 and the upper pair openings 45, 46, so that air, entering by a pipe 47, passes through one segment 34, and out by an outlet 48. Air entering by pipe 53 passes through opening 45, and down through an opposite segment, through opening 44 and out through pipe 54. The valve is constantly rotated so that each segment in turn is traversed by the room air, and the outer air between which heat is exchanged.
Patent GB-859870-A (GB)
Title: Improvements in or relating to collecting electrodes for electrostatic precipitators
IPC: B03C3/47
Filed: 1959-07-14
Abstract: 859,870. Electrostatic precipitation. METALLGESELLSCHAFT A.G. July 14, 1959 [Nov. 25, 1958], No. 24227/59. Class 39(1). The collecting electrodes of an electrostatic precipitator consist of rows of C-shaped members having curved flanges F and alternately facing in opposite directions, the distance between the flanges of a C-shaped member equalling the radius R1 of the corona discharge from a discharge electrode. The discharge points S are arranged to face only the mouths of the cavities. The sides of the discharge electrodes facing the flat portions if the C- shaped members are rounded to avoid discharge in that direction, or the spacing may be greater in that direction. Suitable electrode dimensions are given.
Patent GB-696685-A (GB)
Title: Improvements in shirts and other sleeved garments
Inventor: LIGHT BERT
IPC: A41D27/10
Filed: 1950-10-04
Abstract: 696,685. Garment sleeves. LIGHT'S SHIRT CO., Ltd. Aug. 24, 1951 [Oct. 4, 1950], No. 24241/50. Class 141. A shirt or other sleeved garment has the armhole cut with its edge 1, 2, Fig. 2, running downwardly from the yoke straight or slightly concave for about half its length and then sweeping outwardly and upwardly in a curve 1b to meet the side seam 4 of the garment at 9. The sleeve, Fig. 5, is cut symetrically about its longitudinal centre line which is preferably parallel to the selvedge 13 so that the edges 11, 11a are on the bias of the material.
Patent GB-289697-A (GB)
Title: Improvements in and relating to handles for agricultural tools and implements
IPC: B25G3/02
Filed: 1927-09-15
Abstract: 289,697. Yates & Co., Ltd., J., and Yates, R. E. Sept. 15, 1927. D- and T-shaped hollow h a n d l e s; materials.- Agricultural tools e.g. forks, spades, &c. are formed with all metal shafts and handles, the handle a being preferably of hollow aluminium &c. or aluminium alloy having a spigot c to enter the shaft and be secured by a rivet e, the spigot being thickened at the base f to strengthen it. The head may be D-shaped and may be detachably secured by a bayonet joint or a spring lock.
Patent GB-213507-A (GB)
Title: Improvements in dumb waiters
IPC: A47G23/06
Filed: 1923-09-29
Abstract: 213,507. Fletcher, J. Sept. 29, 1923. Stands; trays and waiters; flower vases and like receptacles; cruets and condiment receptacles.-A dumb waiter comprising a turntable 1 running on balls or rollers 4 supported on a base 2 and held on a spindle 3, 8 surrounding a central spindle has a hollow internally-threaded spindle 5 retained in position on the base by a stud 9 and serving to support interchangeable rods whereon may be mounted cake stands, flower vases, cruets, and the like. The, spider frame and ball or roller bearing are enclosed by rims 12, 13 on the base and turntable.
Patent GB-165873-A (GB)
Title: Improved action for typewriters and like machines
IPC: B41J7/02
Filed: 1919-03-03
Abstract: 165,873. Harrington, F. C. A. March 3, 1919. No Patent granted (Sealing fee not paid). Type-lever actions.-In actions of the kind in which a curved type-lever is mounted on two links of different lengths, the type-lever a is provided with a lower limb b which is mounted on a short rear link n and a longer front link a, and the keylever r is connected to an arm p on the rear link. The type e is secured to a depending part d of the type-lever. When the key-lever is depressed, the type is lifted off the inking-pad l at the beginning of the stroke and is depressed on to the platen roller m at the end of the stroke. Returning- springs v are connected to the links g and a plate w. According to one Provisional Specification, the type-lever is connected to the key-lever, preferably by a pin-and-slot connection, and is provided near the bottom with a pin, engaging a guide-slot. On depressing the key-lever, the type-lever is moved longitudinally until the pin engages the end of the slot and is then rocked for impression. A plate engages the type-levers and prevents them from rocking before the longitudinal movement is completed.
Patent GB-903612-A (GB)
Title: Process for the removal of organic sulphur compounds from gases
IPC: C01B32/50
Filed: 1960-07-13
Abstract: In a process for removing organic sulphur compounds from gases, the gases are passed at temperatures below 150 DEG  C. over successively arranged alternate layers of inorganic catalyst and sulphur binding agent, i.e. a substance able to bind physically or chemically with sulphur.  Specified inorganic catalysts are activated alumina and about 10% ceria or thoria and specified sulphur binding agents are active carbon, substances containing nickel or copper, bog-iron ore, metal hydroxides and triethanol-amine.  The process may be carried out in apparatus comprising a container which contains perforated plates for the reception of the catalyst compositions, which plates are arranged at such an angle to the base that the catalyst compositions, can be poured in on one side and easily withdrawn by sliding off at the opposite side.  Examples are given which describe (1) the removal of CS2 from a mixture of CO2 and CS2 and (2) the removal of organic sulphur compounds from coke oven gas.
Patent GB-462178-A (GB)
Title: Improvements in or relating to shock-absorbing torque-transmitting means
IPC: F16D3/12
Filed: 1935-08-31
Abstract: 462,178. Yielding couplings. MONARCH DOOR CONTROLLER CO., Ltd., SMITH, G. W. PETTIGREW-, and SAMS, J. G. B. Aug. 31,1935, No. 24394. [Class 80 (ii)] Levers 1, 2 are pivoted at 3<a> to the driven or driving member 3 and have convex edges a adapted to roll on a lever 6 carried by the driving or driven member 8, the ends of the levers 1, 2 bearing on springs 4, so that, owing to the variation in the leverage of the levers 1 about their moving fulcra, the resistance of the coupling increases at an increasing rate as the angular displacement between the driving and driven members increases. During drive, each spring 4 may be compressed between a block 12 on the lever 1 and the head 10 of a rod 11 projecting from the lever 6. As shown, levers 1<a>, 2<a> are provided, so that the coupling acts for both directions of rotation. In a single-acting modification, the levers 1, 2 are pivoted to arms extending from the shaft 8 and roll on levers projecting inwardly from the member 3. The coupling may be arranged to drive the drum of a crane or winch, the drum carrying the member 3 and the shaft 8 being the shaft of the driving motor. Alternatively, the coupling may be arranged between a driven gear-wheel and the drum. The coupling may also be arranged between the flywheel and the clutch of a motor vehicle, or in the rudder-head of a ship.
Patent GB-602820-A (GB)
Title: Improvements in or relating to welding rods particularly for use as electrodes for electric arc welding
IPC: B23K35/40
Filed: 1945-09-20
Abstract: 602,820. Making welding-rods. SOUDURE ELECTRIQUE AUTO GENE SOC. ANON. Sept. 20, 1945, No. 24411. Convention date, Jan. 26, 1940. [Classes 83 (ii) and 83 (iv)] A welding-rod more particularly for electric arc welding is made by cutting a strip from a rotating block of metal and then folding or pleating the strip longitudinally to form channels into which additional substances are compressed. A thin band 4 is turned from a metal cylinder 2, electrically heated and rolled between pairs of rolls 5 and 6 and is then pleated or corrugated by a series of pairs of rolls 12-16 having a number of triangular passes of decreasing width and increasing depth, the final form of the corrugations being determined by dies 17. The corrugated strip is then passed into a casing 18 filled with a non-oxidizing gas such as dry nitrogen. Within the casing, the strip passes through a receptacle 23 containing the welding material, such as ferro-chromium powder which fills the troughs of the strip, to a level determined by a comb-like wiper 24 which may be raised or lowered to vary the amount of material retained. The receptacle is continuously vibrated as by a solenoid in an alternating current circuit in order to assist the flow of the powder. As the filled strip leaves the receptacle a nickel wire 29 is fed by a roller 28 into the underside of one of the pleats, the outer edges of the strip are folded over to enclose the welding material and the pleats are pressed together by rolls 31. The strip is electrically heated between the rolls 31 and the succeeding rolls 32 having a profile corresponding to that of the desired rod In a modified form, the strip is rolled to U-shape, filled with welding material to a controlled depth and then closed, bent and rolled to the desired final form as illustrated by the various stages shown in Fig. 9. The rod may then be covered with an insulating and/or fluid-tight sheath which may contain other welding materials or substances which serve to direct the arc. Instead of ferro-chromium powder, other substances in powdered or chip form such as ferro-manganese, ferro-silicon may be fed into the pleats together with mineral oxides or silicates or mineral salts which will act as fluxes.
Patent GB-718436-A (GB)
Title: Improvements in or relating to belt conveyors
Inventor: GADSBY WILLIAM
IPC: D06F65/10
Filed: 1951-10-19
Abstract: 718,436. Endless belt conveyers. TULLIS, Ltd., D. & J. Dec. 29, 1952, [Oct. 19, 1951.] No. 24421/51. Class 78 (1). An endless belt circulating in contact with a plurality of rollers is prevented from creeping laterally by an independently rotatable member associated with at least one of the rollers and engageable by the adjacent margin of the belt when the latter suffers lateral displacement, at least one other of the rollers being adapted to be displaced by a fluid pressure motor supplied with fluid through a valve operated by rotation of the rotatable member on engagement by the belt, so as to bring about lateral re-adjustment of the belt. As shown, the endless belt 3 passes around a reversing roller 8 coaxial with and at one end of which is a conical roller 16 which is engaged by the adjacent marginal edge of the belt when laterally displaced. Upon such engagement roller 16 rotates and winds in a cable 17 which operates a valve 18 supplying air under pressure to a cylinder 20, which through linkage 26, 28, 30 and 31 shifts one bearing 29 of a roller 9 which engages the belt, so as to position it obliquely to the belt whereby the belt is caused to move laterally in the opposite direction back to its normal position. When roller 16 is no longer engaged by the belt a spring unwinds the cable 17 re-setting the valve 18 so as to exhaust cylinder 20 and allow bearing 29 to return to normal position under the influence of a weight 33. Restricting valve means is incorporated in the air supply system to and from the cylinder 20 to render the movements of bearing 29 gradual. A similar arrangement may be provided for re-adjusting the belt upon creepage to the other end of roller 8, but preferably roller 9 is so adjusted that in the normal position of bearing 29 the belt tends to creep only towards the end provided with the conical roller 16. As applied to an ironing machine, the belts 3; 4 which run together for the conveyance of articles therebetween are both provided with the described arrangement, a conical roller associated with the corresponding roller 14 around which belt 4 passes being located at the opposite side to that of the roller 8 so that the creep to be corrected occurs in opposite lateral directions, the correcting roller 9 and the corresponding roller for belt 4 (not shown) being displaced in opposite angular directions by shifting that bearing. of the latter roller which is on the opposite side to the bearing 29 of roller 9.