baber/WOPTO huggingface dataset:
Patent GB-769016-A (GB)
Title: Digital storage systems
IPC: G11B20/16
Filed: 1954-05-11
Abstract: 769,016. Digital electric calculating-apparatus; electric digital -data-storage apparatus. BURROUGHS CORPORATION. May 11, 1954 [May 19, 1953], No. 13746/54. Class 106 (1). In a storage system employing a relatively movable record surface and transducing means, the record medium, which has a pulse definition such as to require at a given relative speed a given minimum time spacing between successive recorded signals to permit individual reproduction thereof, is provided with a timing and a digital signal track on which are recorded respectively timing pulses having a periodic recurrence time equal to or greater than the minimum time spacing, and digit pulses each related to one of the timing pulses to define an interval of time which is less than the minimum time spacing and which corresponds to a number of high resolution pulses to be represented by the digit pulse, and pulsing means respond to electrical timing and digit pulses reproduced from the medium by the transducing means to produce a number of the high resolution pulses proportional to the time interval. In the storage system shown in Fig. 1, decimal digits are represented by differentially positioned signals on a track 14 of a magnetic drum, the digit periods T<SP>1</SP>, Fig. 2 (a), being defined by regularly spaced timing signals on a track 12. The use of two tracks enables the information to be more closely packed, the spacing on track 12 being the minimum necessary for distinguishing adjacent timing signals. In operation, a timing signal detected by head 16 is translated into a square pulse in shaping circuit 18 and applied, via gate 52, to delay unit 42, the output of which (pulse 20, Fig. 2 (a)) switches over a bi-stable trigger circuit 36 and controls the production of auxiliary timing pulses, Fig. 2 (b), by generator 26. The timing pulse from the drum, before it is delayed in 42 (see Fig. 2 (c)), also presets trigger 36 into the " 0 " state, so that the pulse 20 sets it to the "1 i " state in which it opens gate 38 and closes gate 46. The digit signal is similarly translated in circuit 18 into a pulse (such as 24, Fig. 2 (d), representing digit " 3 ") which resets the trigger 36 via gate 54. A number of auxiliary timing pulses corresponding to the digit value (see e.g. Fig. 2 (f)) is thus passed through the gate 38 to a utilization system 44, e.g. an arithmetic unit, and a number of pulses corresponding to the complementary value (see Fig. 2 (h)), e.g. for use in subtraction, is passed through gate 46 to a counter 48 connected to a circuit 50. Alternatively, trigger 36 may be preset into the "1 " state, when the complementary value would be gated through 38. The gates 52, 54 are controlled by a programming circuit 56. The auxiliary timing pulses may be obtained from further tracks on the drum 10 or from cascaded delay units. In another storage system (Fig. 5, not shown), values are represented by variable length pulses such as 32, Fig. 2 (e), which gate a corresponding number of auxiliary timing pulses (see Fig. 2 (g)).
Patent GB-1388085-A (GB)
Title: Power tools
IPC: B23Q11/12
Filed: 1973-03-22
Abstract: 1388085 Power tools ROCKWELL INTERNATIONAL CORP 22 March 1973 [22 March 1972] 13940/73 Heading B3C A power tool comprises a rotatably mounted shaft 26, a motor 24, a casing 22 and means for cooling the motor which consists of inlet means through which air can flow, a vacuum manifold 80 at the opposite end of the casing, a path being provided from the inlet means to the vacuum manifold along which air can flow in heat transfer relationship to said motor, said manifold being connectable to a vacuum source to provide a pressure differential for effecting air flow along the path. Shaft 26 is driven by shaft 38 and supported by bearings 42, 69, 70 which are in an insert 62 mounted in the casing. Air passes through filter unit 82, by bearing 40, alongside the motor, through passages 138 in the inlet member to the vacuum manifold 80 and thence away from the tool. Oil can be passed to bearings 40, 69, 70 from an oil-mist source 142. The oil passes along passage 148 to groove 152 in bearing spacer 74. The spacer has grooves therein, not shown, which ,allow oil to pass to the bearings. From the rear bearing oil passes along passage 156 into the air flow and thus out of the tool. Oil to the front bearings passes eventually along passages 162, 164 and 166 into the manifold and thus out of the tool. The shaft 26 mounts a chuck or other retaining device for the attachment of, for example, drills, milling and grinding tools, routers, deburring tools, boring tools, saws, abrasive tools, polishing tools, cutoff tools.
Patent GB-1171358-A (GB)
Title: Cellulose Ester Composition
Inventor: GANDY GERALD CLIFFORD
IPC: C09C1/56
Filed: 1967-03-28
Abstract: 1,171,358. Black pigmented cellulose esters. EASTMAN KODAK CO. 28 March, 1967 [25 March, 1966], No. 14104/67. Heading C3F. A dispersion (claimed per se) (i) comprises 5-25% of carbon black of particle size 5- 250 mÁ and substantially free from agglomerates, 0-35% methylene chloride, 5-75% methanol, 0À5-20% dissolved alcohol soluble cellulose butyrate and 0-85% butanol, and is made into a film-forming composition by mixing with a solution of (ii) cellulose acetate of 42À5-44% acetyl content in (iii) a solvent made up from 83-93% methylene chloride, 2-5% methanol and 5-12% butanol, the proportions of (i), (ii) and (iii) being such that the final composition contains 14-19% cellulose acetate based on the total composition, and 0À5-5% of carbon black based on the cellulose acetate, all of said percentages of solvents being by weight and approximate as defined in Specification 735,892. The alcohol soluble cellulose butyrate may contain 43À5-52À5% butyryl, 0-4À5% acetyl, 3-10% OH and have an I.V. of 0À3-1À5.
Patent GB-1217033-A (GB)
Title: Precipitator control apparatus
IPC: B03C3/68
Filed: 1968-03-25
Abstract: 1,217,033. Control systems for electrostatic precipitators. JOY MFG. CO. 25 March, 1968 [29 March, 1967], No. 14292/68. Heading H2H. A control system for an electrostatic precipitator is so arranged that the restoration of the normal conditions in the precipitator after a flash-over has occurred is rapidly effected in say, the first half cycle of the A.C. supply to the precipitator after the flash-over has occurred. An electrostatic precipitator 24 is fed from an A.C. supply 16 by way of a step-up transformer 14 and a rectifier bridge 22, the magnitude of the energy supplied being controlled by way of a pair of reverse-parallel connected thyristors 30, 32. The gating potentials for the thyristors are derived from the A.C. supply 16 by way of a circuit 34 which includes a transformer 44 fed from the A.C. supply 16. The output voltage from the transformer 44 is rectified by a bridge 50 and stabilized by a Zener diode 58. This stabilized voltage is used to charge a capacitor 74 by way of a variable resistor 72 which is effective to set the operating characteristic of the precipitator 24. When the capacitor 74 is charged to the desired value unijunction transistor 62 conducts whereupon transformer 36 is energized to produce voltage pulses in the secondary windings thereof to gate the thyristors 30, 32 to control the energy supplied to the precipitator. When sparking occurs in the precipitator the voltage across the primary winding 12 of transformer 14 falls and this fall is sensed by transformer 78 in a spark recognition circuit 76 such that a pulse is produced in the secondary winding 82 which occurs at a high frequency. The high frequency pulses are unattenuated by a capacitor 86 and are applied to a transistor amplifier 92, 94 and thence by way of variable resistor 110 and diodes 112, 116 to assist the operation of unijunction transistor 62 so causing it to fire early in a half cycle of the A.C. supply with consequential earlier gating of the thyristors 30, 32. The output of the amplifier 92, 94 also charges a capacitor 114 so that after sparking disappears, the discharge of the capacitor 114 maintains the early firing of the thyristors 30, 32 thus causing the precipitator to rapidly resume its normal operation. In a second embodiment the operation is effected by two serially connected transductors, oppositely saturated, in the A.C. supply to the step-up transformer, together with a low impedance in parallel with the primary winding of this transformer.
Patent GB-685865-A (GB)
Title: Improvements in and relating to a process of and apparatus for fermenting organic substances
IPC: C12M1/107
Filed: 1950-06-08
Abstract: <PICT:0685865/IV (b)/1> In the fermentation of organic matter to produce methane, the floating layer of sludge in the fermentation chamber is loosened by directing at least one vertically moving, and rotating or oscillating jet of liquid substantially horizontally outwards with respect to the axis of rotation or oscillation into the said layer.  Preferably the jet delivers radially and moves in a helical path.  A plurality of fermentation chambers may be provided, thermally insulated, and material to be fermented may be introduced as the washing stream, after heating, if desired, liquid displaced thereby being returned.  A pump may be mounted in each chamber, taking up liquid, preferably from a lower level, and discharging it as a jet, rotation being produced by reaction of the jet or by an external drive.  A single pump may be connected so that liquid may be fed or withdrawn from any chamber or fed to a storage vessel or mixer wherein with drawn liquid is mixed with fresh material for fermentation.  Liquid withdrawn by pump P through a line b is forced by line a into a control tube on which the jet delivery head 2 fits telescopically.  This has a nozzle for radial discharge, and a further opening controlled by a flap valve d2 which can be used for discharging sludge by applying suction.  A shaft i rotates the head which is moved vertically as by a lifting screw or pulleys.  A second delivery and suction head d1 may be positioned at the bottom of the chamber.  Organic waste is mixed with liquid in mixer f and fed by pipe g and pump P to the fermentation chamber.  Gas is led by pipe r to a gasometer.  Displaced liquid flows back by overflow e and pipe c to the mixer.  When fermentation is complete, sludge is withdrawn by pipes a or b, fed to a press, and used as a manure, if desired after further processing.
Patent GB-502847-A (GB)
Title: Improvements in or relating to closures for bottles and like containers
IPC: B21D51/44
Filed: 1938-05-13
Abstract: 502,847. Bottle closures. STEVENS, A. H. (Aluminum Co. of America) May 13, 1938, No. 14339. [Class 125 (iii)] [Also in Group XXII] A closure for bottle or like container comprises a cup-like shell, the depending skirt of which is provided with an inwardly projecting reinforcing rib 2 near the closed end, a tapered and longitudinally pleated portion 3 adjacent the rib and a cylindrical or screw threaded portion 7. The reinforcing rib may comprise a double fold as shown in Fig. 4, and may serve to retain a sealing gasket 5.
Patent GB-1175713-A (GB)
Title: Improvements in or relating to teeth for excavators or earth-working and moving machines
Inventor: MOREL JOHN RICHARD
IPC: E02F9/28
Filed: 1967-03-29
Abstract: 1,175,713. Excavator teeth. TERRA-PAK Ltd. 31 May, 1968 [29 March, 1967], No. 14346/67. Heading E1F. In a two part excavator tooth assembly at least some C of the external surfaces C, D of the nose B of a tooth adaptor are outwardly bowed so as to allow of a satisfactory jam fit being made with complementarily curved surfaces of the nose-receiving cavity of a tooth point when the point is pushed on to the nose.
Patent GB-569861-A (GB)
Title: Improvements in appliances for sharpening safety razor blades
IPC: B24D15/08
Filed: 1944-01-26
Abstract: 569,861. Sharpening razor blades. FEIGENBAUM, J. Jan. 26, 1944, No. 14406/43. [Class 60] A device for sharpening safety razor blades comprises a body 1 of wood, plastic material, &c. having therein a longitudinal groove 2, the flat surface of the body on each side of the groove having secured thereon strips 3 of stropping or honing material ; the body itself may be of material suitable for stropping &c., in which case the strips are omitted. The device may include both honing and stropping material, each on part of the length of the body, and in a further modification, spaced strips may be inset in a depression in the body; the body may have longitudinal side grooves for use in sharpening pointed articles. The blade 11 to be sharpened is carried by a holder comprising two blocks 7, 8 provided with pins 9 and holes 10, between which the blade is held with projecting edges ; the holder is moved to and fro along the groove with the blade edges on the stropping &c. strips, which may be chamfered at 13 to suit the blade edge, the holder being reversed for treatment of the other side of the blade. The bottom of the groove may have located therein a spring 14 to form a resilient bed for the holder, or ball bearings may be provided along a side, both sides, and/or the bottom of the groove.
Patent GB-1062764-A (GB)
Title: Carburetor
IPC: F02M1/00
Filed: 1965-04-05
Abstract: 1, 062, 764. Spray carburetters. A. C. F. INDUSTRIES Inc. April 5, 1965 [April 29, 1964], No. 14425/65. Heading F1B. A carburetter needle valve has a triangular shaped body 30 with guide surfaces 33 thereon engaging the bore in which it slides, and a neck portion 52 flowing outwardly at 53 to the lip portion 34. The shoulder of the body is provided with planar feed guiding surfaces 54 to reduce turbulence. The lip 34 may be integral with the body or may be formed separately of synthetic rubber.
Patent GB-661071-A (GB)
Title: Television receiving antenna
IPC: H01Q19/04
Filed: 1949-05-30
Abstract: 661,071. Aerials. CHANNEL-MASTER CORPORATION. May 30, 1949 [Oct 11, 1948], No. 14465/49. Class 40 (vii). A collapsable horizontal H-type aerial for television reception, comprising a dipole and a reflector supported on a cross-beam, is constructed of a plurality of pivotally connected units with locking means for maintaining the units rigidly in their operative positions when properly set up. Fig. 1 shows the aerial with collapsed condition. The aerial comprises dipole members 1, 2, reflector members 27, 28 and a cross-beam comprising members 17 and 18. Members 1 and 2 are pivotally mounted upon a block 5 of plastic insulating material and may be locked in position, coaxially with one another, by means of wing-nuts 8 and 9 which engage with slots cut in their extremities. Terminals 15 are provided for connecting the dipole members to the receiver. Reflector members 27, 28 are pivotally mounted upon a conducting plate 26 and are adapted to be locked in position by wing-nuts 33 which are mounted on the pivotal axes and engage with slots cut in the reflector members. The block 5 and plate 26 are riveted upon members 17 and 18 respectively. These latter members form the cross-beam for the aerial and comprise bent portions 20 which together provide a clamp for affixing the aerial to a vertical mast.
Patent GB-1171469-A (GB)
Title: Improvements in or relating to the Manufacture of Semiconductor Devices
IPC: H01L21/00
Filed: 1966-07-08
Abstract: 1,171,469. Soldering; welding by pressure. NATIONAL SEMICONDUCTOR CORP. 8 July, 1966 [8 July, 1965], No. 14490/69. Divided out of 1,171,467. Heading B3R. [Also in Division H1]  The subject-matter of this Specification which has been divided from Specification 1,171,467 is included in that Specification. The claims relate to a machine for attaching semi-conductor bodies to selected ones of lead wires secured in spaced relation to flexible tapes comprising means to feed the tape through the machine and heating means consisting of at least two welding electrodes supported so that they can be lowered into contact with spaced points on one of the wires and raised out of contact.
Patent GB-955730-A (GB)
Title: Preparation of metal borides
IPC: C01B35/04
Filed: 1961-04-21
Abstract: A process for the preparation of metal borides, including mixtures of borides, comprises reacting at least one metal component selected from metals of Group IIB, IVB and VB of a specified Periodic chart, including the rare earths, and the actinide elements 90 to 94, and also Mg, Ca, Sr, Ba, Mn, Fe, Ni, Cr and W, and the alloys, halides, sulphides and oxides of these metals, with a boron component selected from elemental boron, metal borates and halides, oxides and hydrides of boron, under an inert atmosphere and at a temperature of at least 1500 DEG  F. (except in the case of nickel when the temperature is at least 1200 DEG  F.), while said reactants are contacted in a molten alkali metal selected from metallic sodium, potassium and mixtures thereof, and separating the metal boride so formed from said alkali metal, e.g. by filtration, distillation of the menstruum, or methanol digestion.  Where the reaction temperature is in excess of the boiling-point of the metal menstruum superatmospheric pressure is maintained above the menstruum.  A molten flux, e.g. NaCl, may be used to aid solution of the reactants.  The borides produced by the process are microcrystalline and have an average particle size of less than 10 microns.  Many specific reactants are mentioned, and the process is extensively exemplified.
Patent GB-569209-A (GB)
Title: Improvements in and relating to pistons for internal combustion engines and the like
IPC: F02F3/02
Filed: 1943-09-06
Abstract: 569,209. Pistons. SPECIALLOID, Ltd., and ROBINSON, A. S. Sept 6, 1943, No. 14556. [Class 122 (i)] The gudgeon pin bosses are each integral with a thickened portion 17 of the head which extends acrossthe piston. Ribs 16, 20 and 19 may be provided respectively around the inner ends of the bosses, circumferentially or axially of the skirt between the bosses, and in parallel arrangement on the underside of the head. The skirt is relieved externally around the bosses, e.g., by rotating the piston about an eccentric axis with respect to a rotary cutter.
Patent GB-417107-A (GB)
Title: Improvements in and relating to three high mills
IPC: B21B31/24
Filed: 1934-05-15
Abstract: 417,107. Rolling. UEBING, H., Rehhecke, Lintorf, D³sseldorf, Germany. May 15, 1934, No. 14643. [Class 83 (iv).] The middle roll 4 of a three-high mill is raised or lowered to form a pass with the upper or lower roll by an electric motor which drives through a slipping clutch or a braked differential gear. In Fig. 4 the crossheads 10 carrying the four lifting rods 9 of the roll bearing blocks 6 are adjusted by a rack 11 and pinion 12 on a shaft 13 driven through the differential gear 20 from a shaft 14 through worm 15 from the motor shaft 16. A brake band 22 on the differential casing adjusted for friction grip, Fig. 6, by a weight 24 allows slip when the roll has been raised and is blocked from further movement by the top roll. Fig. 5 (not shown) illustrates a friction clutch instead of the differential gear. Limit switches may be used instead of the motor.
Patent GB-475808-A (GB)
Title: Light dividing device
IPC: G02B27/14
Filed: 1936-05-25
Abstract: 475,808. Optical systems; colour photography. TECHNICOLOR MOTION PICTURE CORPORATION. May 25, 1936, No. 14723. Convention date, Jan. 16. [Class 97 (i)] A light-dividing system for colour photography &c., of the type employing contacting prism elements with partly reflecting as well as totally reflecting surfaces, consists of a prism element receiving the incident light and forming with at least two additional prism elements at least two partly reflecting surfaces inclined to each other, at least one element having a totally reflecting surface inclined to the partly reflecting surfaces for deviating a component beam coming from a partly reflecting surface. The form shown in Fig. 1 consists of three similar right-angled prisms 1, 2, 3 placed in contact with each other, the contact surfaces 16, 17 being rendered partly reflecting. A beam R incident normallv on the surface 5 of the prism 1 is partly reflected at the surface 16, the reflected beam A being totally reflected at the surface 5 to emerge normally from the surface 11. The beam B transmitted by the surface 16 is again divided at the surface 17, the beam C reflected by the latter surface emerging normally from the surface 12 while the transmitted beam D emerges normally from the surface 13. In Fig. 2, the prism 3 is omitted and the prism 2 is divided into two prisms 32, 33 having a partly reflecting contact surface 37. In this form, total reflection occurs at the surfaces 5, 36. As shown in Fig. 1, the images a, c may be recorded on a double-width film W moving in a direction parallel to the apex line of the prism combination, the image d being recorded on an ordinary film F also moving parallel to this line. Alternatively, as in Fig. 2, the images a, c may be formed on successive spaces of an ordinary film 43 moving at right-angles to the apex line, the film 44 also moving at right-angles to this line. Fig. 4 shows a system producing four images and consisting of three similar isosceles prisms 61, 62, 63 placed in contact to form a combination of equilateral triangular section, the contact surfaces 64, 65, 66 being partly reflecting. The paths of the rays forming four images k, m, n, p are clear from the Figure. With this form the four images can be viewed simultaneously in superposition by a lens Q. U.S.A. Specification 1,738,095 is referred to.
Patent GB-1420674-A (GB)
Title: Radial-flow fan
IPC: F04D17/16
Filed: 1973-03-27
Abstract: 1420674 Centrifugal fans SIEMENS AG 27 March 1973 [29 March 1972] 14776/73 Headings F1C and C2N A radial-flow fan impeller is provided with a layer 4 of plastics filter material retained by the outer edges of the impeller vanes 22. The filter material may be a foamed plastics material. As shown, portions 5 which may be integral with the layer 4 may engage between the vanes 22. In addition to filtering, the layer 4 reduces noise. The fan casing 3 is injection-moulded from plastics material and encloses also the driving motor 1. A cover which includes the fan inlet has pegs which snap into eyelets 7.
Patent GB-293019-A (GB)
Title: Improvements in lubricating systems
IPC: F16N39/06
Filed: 1928-05-19
Abstract: 293,019. A. C. Spark Plug Co., (Assignees of Kamrath, H. G.). July 1, 1927, [Convention date]. Filtering lubricant; controlling flow of lubricant ; indicating in connection with.-In a lubricating system for internal-combustion engines wherein a pipe 7 branching from a piping system 4 supplied by a pump 1 leads to a filter 18, the supply to the filter is controlled by a valve 26 which is normally maintained open by a spring 29 but which closes to shut off the flow to the filter when excessive pressure exists in the system. The valve casing 12 has an inlet branch 13 screwed into a hole 8 in the crank case and in communication with the pipe 7. a branch 15 connected to a gauge 16<a>, and an outlet branch 14, in which the valve 26 is mounted, connected to the filter by a pipe 17, oil returns from the filter to the crank casing by a pipe 19. A restriction 30 in the casing 12 limits the flow to the filter. As shown, the valve is formed conical and is provided with a head 27 against which the spring 29 abuts, the head being formed with notches to permit flow. In a modification, the valve comprises a polygonal disc, while in a further modification the valve comprises a ported sleeve having a polygonal head.
Patent GB-1155938-A (GB)
Title: An Improved manual surface cleaning appliance.
Inventor: ADAM ERICH
IPC: A47L25/00
Filed: 1968-03-27
Abstract: 1,155,938. Surface cleaning appliances; brushes. E. ADAM. 27 March, 1968 [28 March, 1967], No. 14821/68. Headings A4F and A4K. A manual surface cleaning appliance comprises a holder, e.g. a housing 1, 8, and a brush roller 6 and an adhesive roller 7 either of which is mounted in the holder as required. The lower and upper parts 1, 8 of the housing are separable to facilitate mounting of the rollers 1, 8. Longitudinally extending dirt collecting troughs are formed in housing portion 1.