baber/WOPTO huggingface dataset:
Patent GB-376280-A (GB)
Title: Improvements in anti-glare devices for vehicle headlamps
IPC: F21S8/10
Filed: 1931-03-28
Abstract: 376,280. Vehicle headlamps. BERTRAND, E. and FRANCOMME, E., 23, Rue Chalopin, Lyons, France. March 28, 1931, No. 9513. [Classes 39 (ii), 75 (ii), and 75 (iv).] Reflectors ; lantern screens; screens within bulbs.-In a vehicle headlamp comprising a projecting lens system 2, and a reflecting surface 3, 5 arranged behind the source of light 1, an opaque screen 4 which acts as a recuperating reflector is placed at or near the focus F of the lens system, and a second opaque screen 6 is arranged to intercept rays which are reflected too obliquely from the reflector 5 to be refracted by the lens system. The filament 1 is horizontally disposed on the axis of the lenses 2, and the axis of the reflector 3, which is spherical, passes through the middle of the filament. The top of the screen 6 is curved, the radius of curvature being proportional to the distance between the screen and the focus F. In a modification shown in Fig. 3, the filament 10 or other source of light is placed at the focus of the lens system, and an opaque screen 7 is placed in front of it near to the focus, a second screen 15 being arranged as before. The screen 7 is placed in the interior of the lamp bulb 8, as near as possible to the filament 10. The reflectors 11, 12 are spherical, with their centres at the focus of the lens system. The upper reflector 11 is continued as a parabolic curve 13 whose axis is inclined to that of the lamp.
Patent GB-137207-A (GB)
Title: Improvements relating to the treatment of paper pulp
IPC: D21H17/67
Filed: 1919-04-15
Abstract: To facilitate the sizing and colouring of paper pulp, the pulp is treated with a solution of sodium aluminate prior to sizing, dyeing, and colouring.  Alumina is deposited in the cellulose and on the surface, and the pulp so treated takes up more colouring-matter.
Patent GB-550263-A (GB)
Title: Improvements in or relating to uniting metal members together by welding and the like
IPC: B23K33/00
Filed: 1941-07-28
Abstract: 550,263. Uniting by fusion. ORR, J. B. July 28, 1941, No. 9588. [Class 83 (iv)] In welding together a pair of members such as plates or sheets, each of which has a corrosion resisting plied side, the base metal portions are first welded, e.g. by fusion or flash welding, and the corrosion resisting sides are then welded by spraying weld metal thereon while maintaining the corrosion resisting side and weld metal at a temperature inhibiting loss of their corrosion resisting properties. The weld metal and the work in the vicinity thereof cool rapidly through the critical range and the more remote parts of the work do not reach such range. Carbon steel parts with a thin coating of stainless steel may thus be welded .together. The carbon steel sides 10 of such a compound plate &c. may first be united by carbon steel weld metal 12 or if desired by stainless steel weld metal, applied by ordinary gas or electric are welding. It may be applied either from the stainless steel side as shown in Fig. 1, or from the carbon steel side. The stainless steel side is kept below the critical range, viz., 1,200 to 1,800‹ F., by jets 14 of gas, preferably air, the quantity and velocity of which is controlled in accordance with the temperature of the stainless steel side which may be indicated by a thermometer &c. 15. The stainless steel weld metal 13 is then applied, preferably after heating the work from 600 to 1,200‹ F., or while the work is still hot from the previous operation by spraying a finely divided form. This may be effected by passing a gas under pressure through a nozzle 26 to spray metal melted from a rod 25 by an arc formed between a pair of carbon electrodes 24. The gas may be non-oxidizing or the weld rod may be coated with size, off grade flour or coal tar derivatives. In a modification rods may take the place of one or both of the carbons. In a further form powdered metal may be forced by air through a hose into contact with concentric rings of a welding gas flame or the metal may be vaporized and applied by vacuum. The stainless steel sides of the work in the vicinity of the joint may be previously roughed by shot or coal blasting &c. the stainless steel and weld metal applied thereto also during welding. The stainless steel side may be treated with nitric or sulphuric acid &c. after welding 'to improve its surface finish. Specifications 527,659 and 528,969 are referred to.
Patent GB-674396-A (GB)
Title: Improvements in or relating to heating assembly for a broiler
Inventor: SCOFIELD DONALD WENTWORTH
IPC: F24C7/04
Filed: 1950-04-19
Abstract: 674,396. Grilling and toasting stoves. PHILCO CORPORATION. April 19,1950, No. 9592/50. Class 126 In an oven adapted for the grilling of foods a shield of material substantially transparent to infra-red rays is interposed between the heating means and the food supporting means. As shown, in the insulated grilling compartment 11 of the electric cooker 10 a shield of heat resistant glass 20 is interposed between the heating element 14 and the food supporting tray 17. The shield is formed in two parts 20a, 20b, which are slid beneath the element on brackets 18. The tray 17 rests upon a wire grid 16 which is vertically adjustable towards and away from the heating element.
Patent GB-907505-A (GB)
Title: Data processing system
Inventor: HEROLD HENRY LINDSAY
IPC: G06F11/07
Filed: 1961-03-16
Abstract: 907,505. Electronic computers. GENERAL ELECTRIC CO. March 16, 1961, No. 9653/61. Class 106 (1). Data transfer between the buffer store 12 of a magnetic tape unit 10 and main memory 14 of a computor takes place only when the buffer 12 calls for transfer (on " full " line 30 or " empty " line 31) and the data processor 13 is not communicating with the memory 14. An instruction register 40 may call for data on one of lines 41, 43, 44; if not then the absence of a signal via or gate 50, inverted at 60, is applied to or gate 59. The second input to 59 is a signal from 61 indicating that the data processor has stopped; this signal is derived from either and gate 62 or and gate 64 indicating either that 12 is full, the steps of a command have not been completed (or gate 51) and data is required from main memory 14 (or gate 50), or that a command has been completed (signal from 40e) and 12 is full. A counter 68 started by the " stop " signal on 61 delays the start of further arithmetic operations. Errors in tape reading or in calculation results may stop operations either immediately (gates 89 and/or 83) or after a delay introduced by unit 82 depending on whether the current instruction result can be correctly obtained.
Patent GB-949032-A (GB)
Title: Improvements in or relating to heating elements for heating ambient liquids in bulk
Inventor: STEEL JAMES
IPC: B63J2/14
Filed: 1959-03-20
Abstract: 949,032. Heating liquids in bulk; tubular heat-exchange elements. STEELS ENGINEERING INSTALLATIONS Ltd. Feb. 16, 1960 [March 20, 1959], No. 9657/59. Heading F4S. Units 3 of tubing, coiled to a frusto-conical form or to a frustum of shape similar to a cone but of a cross-section which is polygonal or is a curved shape other than circular, each have a flange 4 at each end for connection to an inlet pipe 11, to an adjacent unit 3 or to an outlet reducer 5, the units being supported by horizontal arms 2 extending from a vertical channel member 1 and connected together to form an element through which flows a heating fluid to heat ambient viscous liquid such as oil or bitumen in storage tanks, wet-cargo ships or liquid-fuel bunker spaces or double bottom spaces of dry-cargo ships. There is a condensate loop 7 at the outlet of each element and an outlet pipe extending upwards adjacent the channel member 1. A number of vertical elements may be installed in a tank and each element may be assembled from a number of units 3 before introduction to the tank or assembled inside the tank. The elements may be dismantled between periods of use.
Patent GB-1213634-A (GB)
Title: Improvements in digital voltmeters
Inventor: WHEABLE DESMOND
IPC: H03M1/00
Filed: 1967-03-01
Abstract: 1,213,634. Analogue/digital converters. SOLARTRON ELECTRONIC GROUP Ltd. 22 Feb., 1968 [1 March, 1967], No. 9743/67. Heading G4H. An analogue/digital converter of the type in which the unknown analogue voltage is integrated for a fixed time interval to generate a ramp signal and a reference voltage of opposite polarity is used to restore the integrator output to a datum level, during which time clock pulses are accumulated in a counter, frequency dividers are interposed between the clock pulse source and the counter to selectively vary the rate of accumulation of pulses. In one embodiment (Fig. 1) the unknown voltage V is fed via a solid state switch 14 to integrator 18, 20 until a counter 26 fed with pulses from oscillator 40 is full. The reference voltage U is then fed to the integrator, zero detector 22 terminating the count in counter 26 when the integrator output is zero. The count is displayed. In another embodiment (Fig. 3, not shown) in which pulses are accumulated at different frequencies during the time intervals when the analogue and reference signals are applied, when the counter is full a bi-stable device (52) is switched so that in accordance with the settings of switches (S4a, S4b, S4c, S4d) selected AND gates (G1, G2a, G2b and G3) are enabled to feed the clock pulses from oscillator 40 via selected ones of frequency dividers 42, 44 to the counter. In a further modification (Fig. 4) switches S5, S6, S7 are positioned so that a different rate of count occurs when counter 26 reaches a predetermined count during the time when the reference signal is applied. In this embodiment the relationship between the input analogue signal and the output digital signal is non-linear. Reference has been directed by the Comptroller to Specification 1,090,047.
Patent GB-233502-A (GB)
Title: Improved rotary key clutch
IPC: F16D11/06
Filed: 1924-04-17
Abstract: 233,502. John, F. April 17, 1924. Clutches, claw.-In order to bring the flywheel of an eccentric press having a rotary key clutch as close as possible to the press element the notched driving-bush d of the clutch has conical tapered or stepped ends engaging complemental and overlapping internal surfaces of bearing- bushes f at each end, and the flywheel has a stepped hub c fitting the bearing-bushes. As shown the ends of the driving-bush are conical or tapered and the length of the hub c is greater than the length of the driving-bush so that the length of shaft a occupied by the clutch is limited to the thickness of the operating-arm h of the rotary key e plus the length of the hub c; the conical, tapered or stepped ends of the driving- bush are preferably of different length, and the longer bearing-bush f is situated nearer the press element b.
Patent GB-1507482-A (GB)
Title: Signal generator for circular pattern knitting machines
IPC: D04B15/78
Filed: 1975-03-10
Abstract: 1507482 Knitting machines TOYOTA CHUO KENKYUSHO KK and TOYODA JIDOSHOKKI SEISAKUSHO KK 10 March 1975 [14 March 1974] 9802/75 Heading D1C [Also in Division G3] A synchronising signal generator for producing signals of constant amplitude and level to control a needle selector of a circular pattern knitting machine overcomes the effects of needle cylinder eccentricity. Adjacent the periphery of the rotatable needle cylinder is mounted a magnetoresistive or high frequency coil synchronous sensor. (Figures 1-3 not shown). Owing to cylinder eccentricity the resulting signal e 1  is as shown in Figure 4A with oscillations of short period t due to the individual needles and a long period T' oscillation due to cylinder eccentricity (shown by itself in Figure 4B). The individual needle oscillations also cyclically vary in amplitude as shown in waveform e 3  (Figure 4C) as the needle and sensor vary in distance apart due to the cylinder eccentricity. A further sensor is aligned with the synchronous sensor along the cylinder axial direction, preferably opposite a region where there are no needle grooves, and this senses the cylinder eccentricity by producing the Fig. 4B signal e 2 . Signals e 1 , e 2  pass through amplifiers (Figures 7, 8, 9 not shown) and feed a difference circuit whose output is waveform e 3 . This feeds a gain control circuit which produces signal e 4  fed via a pulse shaper to control a needle selector as described in Specification 1507481.
Patent GB-1219771-A (GB)
Title: Analytical step indicator board
Inventor: MOSS GRAHAM WILLIAM
IPC: B01L99/00
Filed: 1967-03-02
Abstract: 1,219,771. Work table. G. W. MOSS. 28 May, 1968 [2 March, 1967], No. 9811/67. Heading B4X. [Also in Division B1] An " analytical step indicator board" for indicating the steps to be taken and the stages reached in the investigation of a substance according to a sequential scheme is characterized by having a plurality of recesses formed therein, each recess being adapted to contain a container for the substance under investigation and being associated with a particular marking on the board indicating the test procedure to be applied to the contents of the container at that point in the scheme and/or indicating the identity of the substance, the recesses being arranged in groups divided off from each other by markings on the board and the recesses in at least one of the groups being interconnected by markings on the board which connect a first recess in the group to second and third recesses, the second recess to fourth and fifth recesses, the third recess to sixth and seventh recesses, and so on as required, to indicate a progressively bifurcating investigation sequence. The board may have formed therein one or more additional recesses which are outside the groups and some or all of which are not associated with particular markings indicating a test procedure to be applied. The recesses may be of a size to support a semi-micro test-tube in an upright position. The board may comprise a lower base member having the recesses formed therein and an upper detachable plate having formed therethrough holes which correspond to the recesses, all the markings being on a surface of the plate, which plate may be attachable to the base member by press-locking studs. The surface which bears the markings may be coated with a light-transparent reagent-resistant protective coating. Illustrative figures (not shown) disclose a board designed to be used in the conventional sequential investigation of inorganic substances for the presence of anions and, in particular, of cations, i.e. common metal ions and the ammonium ion.
Patent GB-739099-A (GB)
Title: Improvements in or relating to electric discharge lamps
IPC: H01J61/067
Filed: 1953-04-10
Abstract: 739,099. Discharge lamps. GENERAL ELECTRIC CO., Ltd., JENKINS. H. G., and MILES, E. E. April 12, 1954 [April 10, 1953], No. 98.33/53. Class 39 (1). A tubular low-pressure gas and/or vapour discharge lamp has at least one electrode comprising three or more metal filaments 9, 10 and 11, Fig. 1, or 29, 30, 31 and 32, Fig. 2, electrically connected in parallel between a pair of supply leads 5 and 6 sealed through the lamp envelope and mounted so as to define the edges of a pyramid or truncated pyramid arranged with its axis substantially coincident with the axis of the tubular lamp. The arrangement of the filaments is such that the vertex of the pyramid is turned towards the other electrode of the lamp. Each metal filament may consist of a helix of tungsten wire coated with electron emissive material and can be of the coiled-coil or coiled-coiled-coil type. The ends of the filaments at the base of the pyramid are supported by a ring 7, Fig. 1, or spider 16, 17, Fig. 2, carried by the supply lead 5, and the ends of the filaments remote from the base are joined to a hooked clamp 28 at the end of the supply lead 6, Fig. 2, or carried by a smaller spider or ring 8, Fig. 1, attached to the supply lead 6. The rings or spiders can be of nickel, molybdenum or tungsten.
Patent GB-513088-A (GB)
Title: Improvements in or relating to suction cleaners
IPC: A47L9/04
Filed: 1938-03-31
Abstract: 513,088. Vacuum cleaners. HOOVER, Ltd. March 31, 1938. No. 9839. Convention date, May 6, 1937. [Class 8(i)] The rotary agitator of a vacuum cleaner is provided with helical rows of agitating elements, the rows having common end points and each including a brush 5 and a beater 15 between which a driving pulley 1a is provided.
Patent GB-435604-A (GB)
Title: Improvements in or relating to range-finders
IPC: G01C3/12
Filed: 1935-03-29
Abstract: 435,604. Range-finders. AKT.-GES. C. P. GOERZ OPTISCHE ANSTALT, Pressburg, Bratislava, Czecho Slovakia, and MAURER, M., Klosterneuburg, Vienna. March 29, 1935, No. 9871. [Class 97 (i)] A device to be secured to each of the light - entrance apertures of a singleobserver rangefinder to enable the instrument to bE used for measuring the distance of an object which is nearer than the lowest range foi which the instrument is graduated, consists of a rotary prism system producing a variable deviation of the incident rays in the plane of triangulation, and a variable focus lens system to enable the images of near objects to be formed in the focal plane of the objectives. The attachment comprises a casing 1 secured within the entrance aperture F and carrying a pair of oppositely directed prisms 2, 3 which can be rotated equally in opposite directions by bevel gearing 4, 5, 6 operated by a knob 8<a> through worm gearing 7, 8. The rotation of the pinion 6 is indicated by a pointer 10. The variable deviation produced by the prisms has the effect of reducing the parallax angle, when observing a near object, to a value corresponding to a point on the scale of the range-finder, and the actual range can be obtained from the reading of this scale and the reading of the pointer 10. The variable focus lens system consists of elements 11, 13, the latter being axially displaceable by turning the externally threaded sleeve 12 which carries it. For practising on a target moving in a path at a fixed distance from the instrument a simple non-rotatable deflecting prism and a fixed focus lens may be used.
Patent GB-594570-A (GB)
Title: Improvements in or relating to a pumping unit
IPC: F04D9/04
Filed: 1945-04-20
Abstract: 594,570. Priming centrifugal pumps. WAYNE PUMP CO. April 20, 1945, No. 9986. Convention date, June 23, 1944. [Class 110 (i)] A centrifugal pump 262, Fig. 5, is primed by a continuously running piston pump 390 which draws air from a float chamber 326 forming an extension of the impeller inlet chamber 256. The float valve 348 closes the connection to the piston pump when the liquid level is high enough. A second float valve becomes operative if the float valve 348 fails and liquid enters a chamber 354. When either of these valves closes, the piston pump produces an increased vacuum on its suction side and this is used to open a valve in the delivery of the centrifugal pump. The delivery valve is loaded by a weight and is connected to a piston subjected on its upper side to the vacuum in the suction chamber of the piston pump and on its underside to the impeller delivery pressure. In another arrangement of valves the pump impeller 110, Fig. 2, receives liquid from an inlet 98 through a float chamber 102 and delivers through passage 140 controlled -by a piston valve. 142. The crank-case 20 of the piston pump is connected to'its suction side and to the upper side of a diaphragm 172. The latter is subjected on its under side to the pressure in the impeller inlet chamber 106. The diaphragm controls a ball-valve 166. The head of the piston valve 142 has an orifice 152. During priming the pressures in the piston pump casing and the impeller inlet 106 are substantially the same and the valve 166 is shut because of the loading spring 168. The orifice 152 keeps the piston valve 142 balanced and the valve is kept shut by the loading spring 154. When liquid, rising in the float chamber, causes the float valve to shut, the continuing operation of the piston pump produces an increased vacuum on its suction side and above the diaphragm 172 sufficient to permit the ballvalve 166 to open. This opens a passage large compared with the orifice 152 and the pressure behind the valve 142 falls, so permitting the impeller delivery pressure to open the valve 142. The eye of the impeller 262, Fig. 5, runs with little clearance within a ring 264 having an inturned flange 266 which directs into the impeller any liquid from the delivery leaking past the ring 264. The float 334 has a flange 332 so that a surge of water assists in lifting the float. A channel 416 provides an easy passage for air to the top of the chamber 326. A passage 412 connects the suction chamber 380 and crank-case 280 of the piston pump and prevents pumping of oil by the piston. The pump shown is intended for dispensing petrol and the shaft 268 is provided with a petrol seal 272 and an oil seal 274. If either fails, the leaking fluid passes down a channel 418. The piston pump has an oil splash ring 394 which serves, in part, as a counterbalance to the piston.
Patent HK-201196-A (HK)
Title: Cyclopropane derivatives
Inventor: CROWLEY PATRICK JELF
IPC: C07C29/44
Filed: 1996-11-07
Abstract: The invention provides a process for the preparation of a compound of the general formula (I): <CHEM> wherein X, Y and R<1> to R<7> are as defined. In the process, the olefinic analog of the compound of general formula (I) is treated with a halogen-bearing compound in the presence of metallic zinc.
Patent HK-203196-A (HK)
Title: Protection method and apparatus for computer system
Inventor: BEALKOWSKI RICHARD
IPC: G06F21/12
Filed: 1996-11-07
Abstract: An apparatus and method for protecting BIOS stored on a direct access storage device (62) into a personal computer system (10). The personal computer system (JO) comprises a system processor (26), a system planar (24), a random access main memory (32), a read only memory (36), a protection means and at least one direct access storage device (62). The read only memory (36) includes a first portion of BIOS and data representing the type of system processor (26) and system planar (24) I/O configuration. The first portion of BIOS initializes the system (10) and the direct access storage device (62), and resets the protection means in order to read in a master boot record into the random access memory (32) from a protectable partition on the direct access storage device (62). The master boot record includes a data segment and an executable code segment. The data segment includes data representing system hardware and a system configuration which is supported by the master boot record. The first BIOS portion confirms the master boot record is compatible with the system hardware by verifying that the data from the data segment of the master boot record agrees with the system processor (26), system planar (24), and planar (24) I/O configuration. If the master boot record is compatible with the system hardware, the first BIOS portion vectors the system processor (26) to execute the executable code segment of the master boot record. The executable code segment confirms that the system configuration has not changed and loads in the remaining BIOS portion from the same protectable partition on the direct access storage device (62) into random access memory (32). The executable code segment then verifies the authenticity of the remaining BIOS portion and vectors the system processor (26) to begin executing the BIOS now in random access memory. BIOS, executing in random access memory (32), then activates the protection means to prevent further access to the protectable partition. BIOS boots up the operating system to begin operation of the personal computer system.