baber/WOPTO huggingface dataset:
Patent GB-660673-A (GB)
Title: Improvements relating to electric switches for controlling the starting of internal combustion engines
Inventor: BOURNE WILLIAM GEORGE
IPC: H01H7/08
Filed: 1949-02-07
Abstract: 660,673. Mechanical switches without quick action; press-button switches. ROTAX, Ltd. Feb. 6, 1950. [Feb. 7, 1949]. No. 3293/49. Class 38 (v). A switching device for firing one of more cartridges which drive a turbine for starting an engine comprises a handle h, which operates a, rotary contact member and can only be rotated to select a firing circuit after it has been unlocked by energization of an electromagnet n, and a push button c which is concentrically arranged within the handle h and controls contacts d, e. To operate the push button a lid 7 controlled by a spring 8 must first be raised. The push button serves to set in motion timing mechanism which first breaks the circuit to the magnet n to relock the switch and then completes the firing circuit, afterwards breaking the latter and reclosing the circuit to the magnet n. The movable core m of the electromagnet carries two locking plungers p which normally engage two of four fixed recesses 3 arranged at 90 degrees interval round the axis, and so prevent rotation of the core and a boss u fixed thereto. The other two recesses are engaged by detents 4 on a resilient disc to prevent accidental rotation, when bolts p are withdrawn. Owing to a pin a,nd slot connection v<SP>1</SP> which allows the boss u to move longitudinally but not rotatively relative to a sleeve g the sleeve g and the handle h fixed to it are also locked. When the magnet n is energized the parts p, u move to the left so that the recesses 3 are disengaged and the handle h can be rotated and the plungers p which pass through slots in the member i carry the member i round with them into a selected contact position. An indicating member 9 illuminated by a lamp and visible through a hole in the casing is also operated, Fig. 4 (not shown).
Patent GB-260461-A (GB)
Title: Improvements in apparatus for pointing walls
IPC: E04F21/165
Filed: 1926-02-05
Abstract: 260,461. Narie, J. Feb. 5, 1926. Casting and moulding in situ.-Apparatus for jointing and pointing brick walls consists of an extrusion receptacle A, a feeding receptacle E containing mortar, and a lower chamber D which receives excess of mortar. The whole is carried by a handle B. Plattens N, I are fixed to racks P, J which gear with a wheel L and are reciprocated in opposite directions by a handle Q. Mortar falls through an opening F into the chamber A and is pushed through the open front of the chamber by the platten N; the opening may be regulated by adjusting the upper chamber by screws G on guides H. Excess of mortar passes through an opening 0 in the platten N and falls through an opening C into the chamber D. The joint is smoothed by a piece of brick carried by a bracket on the front of the chamber A, and a finishing tool or jointer may be similarly provided. Slides or small wheels may be fitted beneath the chamber A to move along a straight edge.
Patent GB-1455327-A (GB)
Title: Atomic absorption spectrophotometers
IPC: G01J1/36
Filed: 1974-01-24
Abstract: 1455327 Absorption spectrometers BODENSEEWERK PERKIN-ELMER & CO GmbH 24 Jan 1974 [25 Jan 1973] 03340/74 Heading G1A In an atomic absorption spectrometer, light 10, Fig. 1, from a first source is passed along a measuring path 54 through the sample (e.g. a flame) or along a reference path 60 not including the sample, in dependence on the position of a chopper 18, so that measurements of absorption can be compensated for source brightness variation. The first source has a line spectrum and is chosen such that the sample under test absorbs a line of the radiation To compensate for background absorption by the sample light 20 from a second source, which emits a continuous spectrum, is also passed along paths 54 and 60 by the chopper. The radiation 20 is derived from the second source via a monochromator (not shown) which passes a narrow band of the continuous spectrum, this band including the frequency of the line from the first source which is absorbed by the sample. The chopper is shown in Fig. 1 and 2, and has two portions which are rotated together on axle 28. The first portion has two quadrant mirrors 32, 34 which are disposed on opposite faces of support 26. The rear faces of the mirrors are non-reflective, and each mirror also has a non-reflective portion on its front face, shown at 40, 42 in Fig. 2, to provide dark signals. The second chopper portion is a mask having apertures 44 and 50 in an otherwise non-transmissive disc 30. As the chopper rotates (anti-clockwise in Fig. 2) it controls the following sequence: (a) light 10 goes to path 54, (b) light 10 goes to path 60, (c) light 20 goes to path 60, (d) light 20 goes to path 54. Fig. 3 shows the circuitry. A hollow cathode source HC emits light 10 via flame 66 on path 54, and also along path 60, while a continuous spectrum deuterium lamp gives light 20 via the flame on path 54, and also on path 60. The signals from the detector (not shown) pass to switches 70, 76 controlled in phase with the chopper. During periods (c) and (d) above, the detector output of path 54 is amplified at 68, and is fed via a controlled switch 74 to 72 where it is compared with the reference path to set the gain of amplifier 68; this compensates for background absorption. During periods (a) and (b) the detector signals pass to log amplifier 78 in turn where the reference path is compared with the measuring path to form a ratio so that source brightners variations are removed and absorption due to the sample absorption line alone is measured.
Patent GB-564422-A (GB)
Title: Improvements in or relating to the production of waterproof fabrics
IPC: D06M13/224
Filed: 1943-03-01
Abstract: 564,422. Coated fabrics; compound fabrics. IOCO RUBBER & WATERPROOFING CO., Ltd., RYAN, A., and CAMERON, G. March 1, 1943, No. 3366. [Class 140] Waterproof fabrics are made by applying to a fabric or providing between two fabrics a layer of a composition comprising gelled rape oil and white factice, and hot-curing. A fabric is given one coat of a composition containing gelled rape oil, white factice, zinc oxide and tetra-ethyl-thiuram-disulphide, and three coats of a similar composition containing in addition stearine pitch and whiting, each mixture being worked into spreading consistency with naphtha. To produce a compound fabric, two coated fabrics are united between rollers by means of an adhesive composition comprising gelled rape oil, dark factice, stearine pitch, asphaltic bitumen, china clay, vegetable black, zinc oxide, sulphur, zinc isopropyl xanthate, stearic acid, and naphtha, two layers of which are applied to each coated fabric. The coated or compound fabric is heated for 1¢ hours at 240‹ C. to vulcanize the composition.
Patent GB-304925-A (GB)
Title: Improvements in or relating to hand grips for use in railway or other carriages, on drag ropes, and for like purposes
IPC: B61D49/00
Filed: 1928-02-03
Abstract: 304,925. Dover, H. W. Feb. 3, 1928. End and stirrup, hinged and insulated handles. -A hand-grip or handle for use in railway carriages or other vehicles or on drag ropes or for other purposes is formed from a length of metal tubing a flattened towards its ends and enclosed in a covering e, of non-inflammable celluloid-like material, the tube being bent to a bowed shape, while the ends c are arranged parallel to each other and are passed firstly through a cup-like bearing i having lugs k by which it may be attached to the vehicle roof or similar support n, and secondly through an aperture in a hemispherical boss o forming a universal joint with the bearing j, the ends of the tube a being subsequently swaged out to prevent their withdrawal. A volute spring p having one end q bearing against the support n and the other end gripped between the boss o and ends of the tube a is arranged within the bearing j to prevent undue swinging of the hand-grip when not in use.
Patent GB-198727-A (GB)
Title: Improvements in and relating to furnaces
IPC: F23L1/02
Filed: 1922-02-07
Abstract: 198,727. Bennis, A. W. Feb. 7, 1922. Grates; air supply, regulating.-In a furnace of the kind in which air for combustion passes through hollow fire-bars before entering the ashpit, air under high pressure is supplied by a pipe 11 to an air-inducing device 15 leading to the front part of the ash-pit at 23 and to a pipe 9 communicating with a pipe 8 arranged at the front ends of hollow reciprocating fire-bars 1. Air from the pipe 8 is supplied through flexible pipes 6 to the channels 2 formed in the fire-bars, such channels delivering air through exits 39 to a chamber 17 leading through a damper-controlled passage to the chamber 41 at the rear of the ash-pit, or through exits 38 leading direct into the chamber 41. The air also passes from the chamber 17 to hollow frames arranged at the sides of the grate and enters the ash-pit through orifices such as 26. If desired, one or more additional passages 40 allow air to pass from the hollow fire-bars into the front chamber 43 or to an intermediate chamber 42. In a modification, air is supplied direct to the chamber 43 and may be led from this chamber to the hollow bars through passages 45.
Patent GB-450108-A (GB)
Title: An improved means of silencing and retaining in position the handles of buckets and the like
IPC: A47J47/19
Filed: 1935-02-04
Abstract: 450,108. Bucket &c. handles. WOODWARD, E. M., 179, Tyburn Road, Gravelly Hill, Birmingham. Feb. 4, 1935, No. 3498. [Class 66] A device for maintaining the bail handle of a bucket &c. in the raised position consists of a spiral spring or the like A provided at the ends with hooks B, C, adapted to be engaged respectively through the looped end of the handle and the lug or ear to which it is attached, and under the base rim of the vessel. A pair of the device may be employed, engaged with the handle ends at each side of the bucket.
Patent GB-510713-A (GB)
Title: Control devices for radio receivers
IPC: G04C23/00
Filed: 1938-02-04
Abstract: 510,713. Time switches; electromagnetic switches. KOLSTER-BRANDES, Ltd., and SMYTH, C. N. Feb. 4, 1938, No. 3577. [Class 38 (v)] [Also in Group XL] In an arrangement for the automatic control of a wireless receiver comprising a plurality of timeoperated switches each adapted to control the energising circuit of a relay which effects a predetermined change in the receiver controls (e.g., tuning, volume &c.), each relay is provided with "on" and " off windings the circuit connections being such that when an "on" winding of one relay is energised, the " off windings of all the other relays are energised so that only one tuning control can be operated at any one time. In Fig. 2 each toggle relay has an " on " winding Ln and an "off " winding Lnn energisation of which causes the armature 5 to operate " on " and " off " switches respectively mounted on the insulation members 3 and 4. In Fig. 1 the " on " and " off " windings L1 .. Ln and L11 .. Lnn of each of the relays R1 .. Rn are connected in series with their respective time switches S1 .. Sn across the current supply E, and the common terminals R1 .. Rn of all the pairs of windings are connected together so that on closing the switch Sn the " on " and "off" windings of relay Rn and the "off" windings of all the other relays are energised. The " on " windings are more powerful than the " off " so that when both are energised the relay is operative in the " on " position. In an alternative circuit in Fig. 4 each time switch comprises two contacts and the " on " winding only is energised through contacts XI .. Xn for the " on " position and the other winding is energised through contacts S1 .. Sn for the "off" position. The " on windings L1. Ln are connected to the current supply E through normally open contacts X1 .. Xn and through the normally open common contact So. The "off" windings L11 .. Lnn are connected to the supply E through the normally closed contacts SI .. Sn and the contact So of the relay Ro which is in the anode circuit of the valve V. The " off " windings are also in parallel with the resistance R2 included in the grid circuit of the valve V which is biassed to cut-off. Current is supplied to the resistance R2 from the high tension supply through the resistance R1. Operation of a time switch Sn-Xn momentarily opens Sn and closes Xn, thus removing a parallel circuit from the resistance R2 resulting in increased voltage across the resistance which causes the valve to pass current and so operate the relay Ro. Thus the " on " windings of the relay Rn and the "off windings of all the other relays are energised. The time switch contacts may be circumferentially adjustable round a dial, Fig. 3 (not shown), and operated by a cam rotating with the hour hand of a clock, or they may be horizontally adjustable, Fig. 5, and operated by a transverse contact strip 17 on an endless belt 13 in which case the circuit may be completed through the contact 201, 202 ... contact strip 17, belt 13 and contact brush 19. Alternatively, the contact strip may act purely as a cam.
Patent GB-120835-A (GB)
Title: Improvements relating to Window and similar Frames for Railway Vehicles and other Structures.
Inventor: HOULDCROFT ARTHUR THOMAS
IPC: B60J1/20
Filed: 1918-02-28
Abstract: 120,835. Houldcroft, A. T. Feb. 28, 1918. Vehicle windows; window frames.-Window and similar frame units for railway vehicles, ships, yachts, &c., are fitted at the bench with the contained moving parts and adapted to be detachable and interchangeable without separate fitting in the structure. The units comprise framed or frameless glass g and louvers or the like d, d<1>, and the sides of the frame consist of pressed - metal parts a formed or provided with grcoves or runs for the moving parts. The runs may be formed by means of ribs a<2> and channel sections such as a<3>, e. The bar k of the frame rests on the inner waist rail l of the structure, and a yielding strip l<1> makes a tight joint. At the top is a yielding strip o jointing the frame unit with the underside of the inner top rail p, and the joint is screened by a plate q. Angleirons r secured to the side posts make contact with the frame unit at the sides, while a marginal portion e<3> is adapted to pass behind the flanged portion h. A channel may be provided as shown at e, Fig. 7, to conceal the tapes s where sash balances are used.
Patent GB-1151057-A (GB)
Title: Improvements in and relating to Pulverising Machines.
Inventor: TANDY FRANCIS PETER
IPC: B02C13/13
Filed: 1968-01-24
Abstract: 1,151,057. Pulverising apparatus. ALFRED HERBERT Ltd. 24 Jan., 1968, No. 3644/68. Heading B2A. For pulverising absorbent adhering material a steam jacket 125 having opening 125a is provided for the cylindrical pulverizing chamber of a known type of machine having a rotor, an inlet chute, pivotal hammers, and an outlet having a set or sets of intercalating axially - overlapping pulverising pegs, one row of pegs of the or each set being arranged in a circle or arcuate segments carried by the rotor and the outer row of the or each set being arranged in a coaxial circle on the stationary wall of the outlet side of the chamber. The jacket may be integral with a detachable part of the machine or a heat conducting wall may be detachably secured to a wall of the machine. A wear resistant steam heated divertor 129, 139, 137, having steam inlet and exhaust ports 46, is pivoted at the outlet side.
Patent GB-1062342-A (GB)
Title: Improvements in or relating to draught-free ventilation means
IPC: B60H1/26
Filed: 1965-01-27
Abstract: 1,062,342. Sliding roofs. K. BAUR. Jan. 27, 1965 [March 20, 1964; June 18, 1964], No. 3702/65. Heading B7B. A roof panel is provided with lateral pins 34 which engage in guides 35 at the sides of the roof opening so that the roof panel may be tilted to act as a wind deflector as well as being movable forwardly into the well 31 between the windscreen and the roof opening. The panel may be guided by a single central flexible track secured in the well 31 and it may be provided with hand-operated mechanism having toothed wheels engaging fixed racks at the side of the roof opening. The panel may also be biased into the horizontal position by a torsion spring.
Patent GB-853375-A (GB)
Title: Roller mill feed stock guiding arrangement
IPC: B02C4/28
Filed: 1959-02-03
Abstract: 853,375. Roller mills. MIAG MUEHLENBAU UND INDUSTRIE G.m.b.H. Feb. 3. 1959 [Feb. 28, 1958], No. 3714/59. Class 59 A roller mill feed stock grinding arrangement comprises a wedge 3 on the upper edge of which is supported a lath 8 which can be leaned against a wall 5 or turned into an approximately vertical position to lean against a wall so that the stock can be fed into the area between the upper grinding roller 1 and the upper surface 31 of the wedge or into the area between the lower grinding roller 2 and the lower surface 32 of the wedge. The lath may be secured to the wedge by joints. The wedge is angularly adjustable about pivots 41 of a part 4 which is angularly adjustable relatively to a part 9 which is adjustable relatively - to a fixed part 10. Alternatively, the pivots 41 are connected to one ends of rods 11, 12 the other ends of which are located on eccentrics 15, 16. The surfaces 31, 32 may be curved and the wedge may be vibrated.
Patent GB-692927-A (GB)
Title: Reducing the ignition time lag in reciprocating fuel-injection engines
IPC: F02M1/00
Filed: 1950-02-14
Abstract: 692,927. Regulating; heating charge. SANDERS, A. F. Feb. 5, 1951 [Feb. 14, 1950], No. 3719/50. Classes 7 (iii) and 7 (vi). A fuel injection engine has an auxiliary air inlet leading through th'e exhaust manifold to the engine in parallel with the normal cold air induction pipe, and a single throttle valve in the cold air pipe is actuated to cut off the cold air supply at and below a predetermined load, in consequence of. which the engine is supplied with heated air through the auxiliary inlet, the flow in which is free from direct control by a throttle valve or like regulating means. A throttle valve 11 in the air intake pipe 12, operated by the fuel injection control means, is closed at about half load, the air supply being then drawn through a by-pass 16 and delivered to the induction manifold 26 at 25 after being heated in a heater situated in the exhaust manifold 18. The air from pipe 16 flows into a chamber 20 in the exhaust manifold 18 and through pipe 22, chamber 21 and pipe 24 in the exhaust manifold to the pipe 25. A needle valve 28 adjusts the flow of heated air. In a modification the pipe 16 is connected to the pipe 12 downstream of the throttle valve 11 and receives air from the atmosphere through a muff surrounding the exhaust pipe.
Patent GB-286853-A (GB)
Title: Improvements in and relating to the extraction of extraneous material from fluids or gases
IPC: F22B37/32
Filed: 1927-02-09
Abstract: 286,853. Gordon & Co., Ltd., J., (Hagan Corporation). Feb. 9, 1927. Density separators. - Extraneous material is extracted from a whirling stream of gaseous fluid while passing through a chamber with a cylindrical collecting surface; the stream is caused to contract while passing the surface, thereby decreasing the scouring and entraining effect of the stream on the surface. Apparatus of this type used as a steam separator has a chamber a with a cylindrical wall b and an annular inlet port d provided with vanes to give the entering steam a whirling motion. The inlet is arranged round the tubular collector h which is fixed between the chamber a and the discharge port g. An annular pocket l formed in a flange k is situated between the collector h and the port g. For convenience of assembly the separator is formed in two parts which are secured together by lugs rand bolts s. An annular shield u is secured to the casing wall b and the separator is supported by the boiler wall p. Steam enters the port d and whirls round in the casing b on which is deposited the heavier extraneous material and water; this material is discharged through the pipe n. The stream continues its whirling motion as it passes through the tubular collector h and entrains the liquid deposited at the lower end of a collector, causing it to form a moving film on the collector surface. Owing to the port g having a smaller diameter than the collector h and to the shielding action of the flange k the stream leaves the surface of the collector and the entraining action is diminished. This causes the deposited liquid to form drops which run downwards over the film to the edge of the collector h where it is carried off in the form of spray by the incoming stream from the port d. In boiler installations where the feedwater contains an abnormal amount of suspended matter, the separated solids may be discharged without re-delivery to the water of the boiler.
Patent GB-524618-A (GB)
Title: Improvements in counting or indicating devices
IPC: H03K23/74
Filed: 1939-02-04
Abstract: 524,618. Electric indicating systems. WILKINS, S. R. Feb. 4, 1939, No. 3780. [Class 40 (i)]. An arrangement for indicating how many seats &c. out of a total number are vacant comprises a circuit c including in series a number of resistances r which are inserted or removed by switches s associated with the seats n, the current flowing in the circuit being measured by a milliammeter m which is calibrated to give the required indication. The switches s may conveniently be closed by the depression of tip-up seats, and if desired hand-operated switches may be fitted in parallel to provide for the reserving of seats. The instrument m is adjusted by means of series and shunt resistances f, v so that the accuracy of the reading on the scale increases as the number of vacant seats decreases. A marginal relay in the circuit may be arranged to operate a lamp indicator n when all the seats are full. If A.C. is employed, it is applied through a transformer and rectifier to the instrument m.
Patent GB-916013-A (GB)
Title: Improvements in or relating to diode mixing circuits
IPC: H03D7/02
Filed: 1959-02-03
Abstract: 916,013. Frequency changer circuits. PHILIPS ELECTRICAL INDUSTRIES Ltd. Feb. 3, 1959 [Feb. 6, 1958], No. 3800/59. Class 40 (6). In a radio receiver frequency-changer circuit the signal from the aerial input circuit 11, 12 is applied to the neutral point of an inductor 13 to which the local oscillation is applied from an oscillator O. Two diodes D 1 , D 2  are arranged across the coil in the same polarity and are connected together by a capacitor C 2  having a low impedance. The resulting I.F. output is derived from a tuned transformer 15, 16 the diodes are biased from the H.T. supply through resistor R.
Patent GB-621238-A (GB)
Title: Improvements relating to liquid fuel combustion chambers
IPC: F23R3/10
Filed: 1947-02-10
Abstract: 621,238. Generating products of combustion under pressure. LUCAS, Ltd., J., and CLARKE, J. S. Feb. 10, 1947, No. 3813. [Class, 51 (i)] A liquid-fuel combustion chamber for gasturbines and other uses has a partition wall 3, Fig. 1, at its air entrance end, furnished with a number of apertures 6. Each aperture is covered by a spaced deflector plate 7. Or, the wall 3 has one large opening 13, Fig. 3, covered by a deflector plate 14 which has a number of vanelike openings 16. The region of these openings is covered by a second deflector plate 17.