baber/WOPTO huggingface dataset:
Patent GB-401533-A (GB)
Title: Improvements in and relating to the casting of metal on the inside of hollow objects such as axle brasses, bearing bushes and the like, and apparatus therefor
IPC: B22D19/08
Filed: 1933-02-01
Abstract: 401,533. Making bearings and other compound forms. DAELEN, F., 6, Hindenburg-Allee, LOOS, W., 7, Mosbacherstrasse, both in Wiesbaden, (trading as GLYCOMETALL-WERKE DAELEN & LOOS), and ARMBRUSTER, M., Schierstein, near Wiesbaden, Germany. Feb. 1, 1933, No. 3140. [Classes 83 (i) and 83 (ii).] Composite casting.-Metal is cast in a hollow object k by mounting it on the lower end of a vertical shaft d, immersing in a bath b of the molten metal, which heats the object and charges the cavity k; and then removing the object and allowing it to cool. The bath or the object may be moved axially and the cast metal may be retained by rotating the object k, as by an electric motor e, Fig. 3, or by closing the inlets s as by moving a core x, Fig. 4, axially. The object may be secured to the shaft by a lower plate i<1>, with removable nut, and an upper plate i with clamping lever t, Fig. 3, or hand nut i<2>, Fig. 4. In a modification the object is screwed into a member i, Fig. 2, attached to the shaft d. The object k may also be immersed in other baths for cleaning, deoxidizing, tinning, cooling, tempering &c. arranged one after the other, the shaft d or the baths being moved to transfer the object from one bath to the other. In Fig. 3 the shaft d is moved vertically by rack and pinion r while the baths b are traversed on a track f. In Fig. 2 the baths are stationary and arranged in a circle while the shaft d is carried by a truck g moved over an undulating track f by a pivoted arm m. In Fig. 1 there are a number of shafts d vertically movable in arms c of a member intermittently rotated on a column a. Any of these movements may be effected by hand or mechanically and the apparatus may be arranged in a reducing atmosphere. In another modification various non-miscible fluids, such as hydrogen, borax and metal, may be arranged one above the other in a single container, the object being moved down through the fluids successively. The invention may be used for lining axle brasses &c. with white metal, leadbronze, antifriction alloy or the like.
Patent GB-177315-A (GB)
Title: Improvements in and relating to electric rectifiers
IPC: H01T14/00
Filed: 1921-01-26
Abstract: 177,315. Freedman, P. Jan. 26, 1921. Arc lamps.-A rectifying- ,device, not hermetically .enclosed, comprises solid electrodes so designed that the anode or anodes are maintained at about red heat so that they can emit positive ions only, while the cathode or cathodes are at white heat so that they emit electrons. The arc may be formed in air or in a protecting gas such as coal gas. The anodes may be of metal of fairly high melting-point, such as nichrome. Each anode may consist of a block 1 carried by a stem, of a rod fitted into a mass of metal of high conductivity, or of a rod provided with radiating fins or water - cooled internally. Carbon, refractory metals such as tungsten, and compounds such as calcium, uranium, zirconium, or thorium oxide, calcium or other fluorides, or borides, are suitable materials for the cathode. Carbon mav be in the form of a rod, with or without a coating or .core of refractory compounds. A metal cathode may consist of a block or sphere carried by a slender stem. Refractory compounds if used alone are rendered conductive by pre-heating by a gas flame. Half-wave, whole-wave, and 3, 4, and 6-phase rectifiers may be constructed. In a half-wave rectifier, the main cathode 2 may be kept hot partly by an alternating discharge from an auxiliary cathode 27, or a symmetrical arrangement of the two cathodes may be employed as shown. The alternating discharge is provided by a transformer secondary 28, to the middle of which one of the alternating-current mains is connected, the other leading through an inductance 3 and the direct-current load 8 to the anode 1. This device can be started without contact between the anode and cathodes. In a full-wave rectifier, two anodes may be connected to the ends of a transformer secondary, the direct-current load being inserted between the mid points of this secondary and of another winding providing the alternating discharge between the two cathodes. Another full-wave rectifier has two pairs of cathodes forming arcs with opposite ends of a single anode. Three-phase rectifiers may similarly be constructed with either three anodes or three pairs of cathodes, the arcs in the second case being shielded from each other. In another half-wave rectifier, a single anode and cathode are used, and the direct-current load is substituted for one section of a series resistance after the arc has been started.
Patent GB-1423221-A (GB)
Title: Clamp for supporting a conduit or the like
IPC: F16L3/12
Filed: 1973-01-22
Abstract: 1423221 Clips LORD CORP 22 Jan 1973 [25 Jan 1972] 3223/73 Heading E2B [Also in Division A4] A clip for fastening a pipe C to a support S is made of elastomeric material having a wide bore portion 12 which does not contact the pipe and, at one or both ends, a constricted part 11b which does grip the pipe, the wide portion including a rigid support strip embedded in it. The fastening bolts 21 may be located by an additional strip 22. A slit 14 at the bottom of the clip enables it to be opened out, for insertion of the pipe, by spreading-pliers engaging in loops 16a in wires 16 embedded in the end portion(s) 11b. In a modified form (Fig. 4, not shown), these wires lie in external grooves in the end portions, and are placed in position after installation. In other forms, the wires are dispensed with, only a single strap extension 19 is employed, and two clips are joined together side-by-side.
Patent GB-451091-A (GB)
Title: Improvements in or relating to means for sharpening knives
IPC: B24D15/08
Filed: 1936-02-03
Abstract: 451,091. Sharpening knives. INDUSTRIE AKT.-GES. ALLEGRO, Emmenbr³cke, Lucerne, Switzerland. Feb. 3, 1936, Nos. 3248 and 3249. Convention dates, Feb. 11, 1935 and July 29, 1935. [Class 60] A sharpener for knives comprises two crossing abrasive bodies 1, 2 carried by holders 3 pivoted at 21 to a casing 11 and acted upon by springs 8. A knife to be sharpened is placed with its back upon a roller 13 covered with rubber, felt, &c. and mounted on eccentric trunnions in a slot 12 in the casing, and is reciprocated with its edge in engagement with the bodies 1, 2, which have curved faces of such form as to give the same sharpening-angle for blades of different widths. In a modification, the pivots may be above the blade, the bodies 1, 2 having convex surfaces. In a further modification, Fig. 4, the bodies 1, 2 have plane faces and are slidable in a casing 4 under the action of levers 9 with ribs 10 engaging the bodies, and a spring 8 lying in a groove 8 in the casing. The trunnions 14 of the roller 13 may be located in any of a series of grooves 15 on the sides of the slot 12 according to the width of the blade, the grooves being opened or closed by a slidable plate 16 with slots 17 therein.
Patent GB-1424754-A (GB)
Title: Light transmissive retroreflective sheeting
IPC: B44F1/04
Filed: 1973-01-22
Abstract: 1424754 Light-transmissive retroreflective sheeting MINNESOTA MINING & MFG CO 22 Jan 1973 [24 Jan 1972 17 April 1972] 3269/73 Heading G2J Light-transmissive retroreflective sheeting is formed by an open web of filaments 17, Fig. 2 e.g. of nylon or metal, encased by transparent retroreflective microspheres 18 e.g. of glass or plastics, whereby the sheet may be placed between e.g. a road sign and a rear source of illumination so that the sign may be seen by light transmitted through the spaces in the web or by light reflected from the microspheres. The woven filaments having the desired denier and percentage of open area coated with a tacky transparent binder into which microspheres covered with reflective material, e.g. vapourized aluminium, or silver, are embedded, the binder hardened and the exposed reflective material removed, e.g. by etching. The web may be non-planar and, if of metal, may conduct electricity to generate heat for removing moisture in signs. In Fig. 4 (not shown) the open mesh fabric 23 with microspheres 24 is pressed into a light-transmissive polymer-based layer 25, preferably elastomeric to permit flexibility of the sheet, which may be pigmented to produce light diffusion or the figment may be phosphorescent or fluorescent, the layer being on a support or release sheet 26. In a further embodiment the layer 25 is allowed to penetrate the opening between the filaments to above the top of the filaments where the layer supports a transparent sheet out of contact with the microspheres. Additional microspheres of different refractive index may be embedded in the layer between the encased filaments.
Patent GB-247204-A (GB)
Title: Improvements in or connected with the picking motions of looms for weaving
IPC: D03D49/24
Filed: 1926-02-04
Abstract: 247,204. Bergmann - Elektricitõts- Werke Akt.-Ges. Feb. 6, 1925, [Convention date]. Addition to 242,255. Picking-motions. - In looms wherein the picking is effected by cranks or eccentrics &c. and the speed of the loom can be varied without altering the speed of the picking device, as set out in the parent Specification, the position of the loom at which the operation of the picking device is initiated is varied in dependence on the speed of the loom at any time. An eccentric d controlling the picking is mounted loosely on the picking shaft a, and normally hangs down in an inoperative position, but at the required times is actuated by a stud f on an arm e on a hollow shaft b driven at half the speed of the crank shaft. The eccentric d is thus rotated and a roller m thereon engages a guiding-member n, which forces the eccentric into contact with a disc c fast on the picking shaft. The eccentric is thus frictionally coupled to the disc c and is rotated thereby to effect the picking. The stud f may be adjusted in a slot q in the arm e by links k, i actuated by a sleeve h, controlled by a rod l, which may be displaced manuallv. The time and position of the loom at which the pin actuates the eccentric can thus be varied, the pin being brought nearer to the axis of rotation when the speed of the loom increases. The displacement of the rod l may be governed by the apparatus which adjusts the the speed of the loom. The member n may be spring actuated and may itself form the picking- arm.
Patent GB-536160-A (GB)
Title: Protecting ships from the sea and air
IPC: B63G9/00
Filed: 1940-02-22
Abstract: 536,160. Torpedo and bomb screens. VINCENT, W. J. Feb. 22, 1940, No. 3327. [Class 113 (i)] Ships are protected against bombing attacks from the air as well as against torpedoes and mines by a net 1 extending from stem to stern of the ship and supported above the deck from the masts 2. The net is held away from the side of the ship by booms 11 which also support the torpedo net 8.
Patent GB-478775-A (GB)
Title: Improvements in or relating to radio receivers and the like
IPC: H03J7/04
Filed: 1937-02-04
Abstract: 478,775. Wireless receiving circuits. MARCONI'S WIRELESS TELEGRAPH CO., Ltd. Feb. 4, 1937, No. 3345. Convention date, Sept. 14, 1936. Addition to 472,739. [Class 40 (v)] The invention relates to derivation of control voltages for automatic fine tuning of radio receivers by comparison of phase of currents between points in a resonant. network as described in the parent Specification, and comprises (1) the use of modified forms of network for automatic frequency control ; (2) the use of these modifications and the circuits described in the parent Specification for obtaining control potentials for tuning indicators and A.V.C. In the Figure, an intermediate frequency band filter L1, C1, L2, C2 of a superheterodyne receiver yields voltages from the primary and secondary circuits which are 90‹ phase-displaced at resonance. These voltages are applied to a wattmeter arrangement comprising a rectifier bridge R. Operating potentials for a station indicator or automatic volume control are taken off from terminals A, B, and A.F.C. potentials from C, D. The potential between A and D may be applied to one optical tuning indicator and that between A, C to a second adjacent indicator ; the mean total deflection of the two is then a measure of the signal amplitude and the difference of the two deflections is a measure' of the amount of detuning. Where glow-discharge tubes are used as indicators, they may replace the rectifiers in any of the systems described.
Patent GB-1245201-A (GB)
Title: Linear induction motor
IPC: H02K41/025
Filed: 1970-01-23
Abstract: 1,245,201. Linear motors. SERETE. 23 Jan., 1970 [23 Jan., 1969], No. 3352/70. Heading H2A. In a linear induction motor comprising at least one wound inductor, the magnetic circuits of the inductor or inductors are located on opposite sides of and inclined to a plane perpendicular to the plane of the air gap and parallel to the direction of relative movement of the inductor and an armature, whereby the inductor field tends to centre the armature with respect to the inductor as well as produce relative motion. Fig. 2 shows one embodiment in which the laminations of the inductor 8 are stacked to form teeth 9 of herring-bone shape. The arrow 13 shows the direction of the resultant forces produced on armature 10 by the winding portions on either side of the apices 9a of the herring-bone teeth. Alternatively, Fig. 4, two inductors 14, 15 with linear teeth may lie inclined at an angle α to the centre line of the armature. Several pairs of such inductors may be located in line adjacent to each other, Fig. 5 (not shown). The armature 10 which comprises a plate 11 of conducting material and a superimposed plate 12 of magnetic material, may be continuous or formed of short sections.
Patent GB-1236554-A (GB)
Title: Receiver for plural frequency signalling system
Inventor: ANTOSZEWSKI EUGENIUSZ
IPC: H04L27/156
Filed: 1969-01-21
Abstract: 1,236,554. Electric selective signalling. ENGLISH ELECTRIC CO. Ltd. 20 Jan., 1970 [21 Jan., 1969], No. 3369/69. Heading G4H. [Also in Division H3] A receiver for detecting "trip" signals of a predetermined frequency comprises shaping and squaring circuitry 16-19 which converts the received signal to a train of pulses, a first delay circuit 24, 26, 37-41 fed with the pulses, a first gate 21 fed with the pulses and the output of the first delay circuit, a second delay circuit 42-44 fed with the output of the first gate, and a second gate 22 fed with the pulses and the output of the second delay circuit, the delays of the delay circuits being such that their outputs coincide with the pulses. Seven transmitters each operating at a different centre frequency transmit information over a line 3 to a corresponding one of seven receivers. Each transmitter (see Fig. 1A) has an oscillator which provides a guard frequency 100 Hz. below the centre frequency and a "trip" frequency 100Hz. above the centre frequency, a signal having alternate "trip" and guard frequencies being transmitted when a contact 4 is closed in response to a fault. The guard frequency signal is fed via the circuitry 16-19 and circuits 23, 25, 28, 29 to a gate 20 which provides an "off" signal to a bi-stable 30 controlling a delay circuit 47 so that a relay in the circuit 47 remains de-energized. When a "trip" frequency signal is transmitted to the receiver by closing the contact 4, pulses are supplied to both the gates 21, 22 from the first and second delay circuits respectively. Simultaneously, a circuit including a timer 35, which circuit normally applies inhibit signals to the gates 21, 22 and to the bi-stable 30, applies signals to open the gates 21, 22 and enable operation of the bi-stable 30. The relay in the circuit 47 is therefore energized and a circuit breaker may be actuated to isolate the transmission line. The delay circuit ensures that the relay remains energized for at least two cycles of the modulation so that the alternate guard frequency cycles do not de-energize the relay.
Patent GB-1382619-A (GB)
Title: Floor or wall covering and method for the production thereof
IPC: E04F13/08
Filed: 1972-01-25
Abstract: 1382619 Laminates R HEBROK 25 Jan 1972 [25 Jan 1971] 3370/72 Heading B5N A floor or wall covering comprises an imperforate base layer made of rubber, plastics or other material which reduces the risk of slipping having projections integral therewith on the outer surface of the base layer to provide on their end faces respective tread or visible surface elements and a protective layer, e.g. of metal, wood, plastics or textile material, covering the whole of the outer side of the base layer except for the end faces of the projections, the protective layer being of material resistant to aggressive agents such as cleaning agents and industrial waste which left in contact with the base layer would tend to corrode it, the protective layer being bonded to the base layer so tightly that penetration of the aggressive agents between the layers is inhibited. The projections which may be at least equal in height to the thickness of the protective layer, may be in the form of burls or ribs of circular oval or angular cross-section or in the form of a lattice. The pretective layer may be provided with markings, e.g. arrows, reference images or inscriptions formed by elevations and/or indentations or depressions and by colour printing. The protective layer may be luminous. The layers may be bonded together by vulcanization, cementing or adhesion. The covering may be produced by bonding together the protective layer and base layer in a mould with heat and pressure, the protective layer covering the whole surface of the base layer and the protective layer then being removed from the projections on the base layer by grinding, milling or cutting. Alternatively a continuous method of production may be utilized, e.g. in a calender, or a protective layer provided with cut-outs corresponding to the projections on the surface of the base layer may be used. The covering may be provided in the form of large webs or cut-to-size pieces, e.g. tiles.
Patent GB-572750-A (GB)
Title: Improvements in or relating to means for supporting pots, kettles and other objects over a fire
IPC: A47J36/10
Filed: 1944-02-23
Abstract: 572,750. Hearth stands. CAMPBELL, J. A. Feb. 23, 1944, No. 3379. [Class 126] Means for supporting a pot, kettle, etc., over a fire comprises a base 1 resting on the hearth and a support 14 for the pot &c. mounted on a pillar 4 and adjusted by means of a threaded rod 9, nut 11 and handle 10.
Patent GB-646962-A (GB)
Title: Improvements in or relating to processes for the preparation of farnesylacetone
IPC: C07C45/67
Filed: 1948-02-05
Abstract: Farnesylacetone (2 : 6 : 10 - trimethyl - penta-decatriene-1 (or 2) : 6 : 10-one-14) is obtained as a mixture of stereoisomers by converting nerolidol into nerolidyl acetoacetate and pyrolysing the latter; the nerolidyl acetoacetate is obtained from nerolidol either by treating it with diketene, preferably in the presence of the sodium derivative of nerolidol, or by the action of a lower aliphatic ester of acetoacetic acid (e.g. methyl, ethyl) in the presence of an alcohol exchange catalyst such as potassium carbonate.  In the latter case, the nerolidyl acetoacetate may be converted into farnesyl acetone without being isolated, the reaction mixture being merely heated.  The pyrolysis may be effected in the presence or absence of an alkaline catalyst.  Farnesyl acetone may be catalytically hydrogenated to 2 : 6 : 10 - trimethyl - pentadecanol-14 and this converted into 2 : 6 : 10-trimethyl-pentadecanone-14 by catalytic dehydrogenation or by oxidation, e.g. with chromic acid.  The semicarbazone of the saturated ketone is described.
Patent GB-595183-A (GB)
Title: Sterilizers
IPC: A61L2/07
Filed: 1944-02-24
Abstract: 595,183. Doors for resisting fluid pressure. VISCHER PRODUCTS CO. Feb. 24, 1944, No 3489. Convention date, Jan. 25, 1943. [Class 123 (i)] [Also in Groups VI, XXV and XXXVII] In a steam sterilizer a pressure container 20, Fig. 2, is provided with a sealing ring 66 fitted around the inside of an opening 30 adapted to be closed by a resilient door 32 (adapted to be urged toward its sealing position by the pressure within the container) supported in a ferrule 46 attached to a rod 48 which in turn is supported in a sleeve 50, the rectangular neck of which fits loosely into a similar shaped opening in a door supporting strap 56 pivoted at 58 to one side of the container 20. The other end of the sleeve is cam-shaped and engages the complementary shaped extension of handle 64 so that rotation of the handle deforms the contour of the door into engagement with the sealing ring 66. In a modification of the closure means, Fig. 13, the container is provided with a pair of ears to which a hinge 206 is pivotally connected by one leg of a U-shaped hinge pin 208, the other leg forming a pivotal connection between the hinge 206 and one end of a door supporting strap 210. The door 212 and leaf spring 218, which is clamped between door 212 and shoulder 220 of a mounting screw 216, have a central rectangular opening to receive the square section 214 of the screw 216, and are secured thereto by a nut 222. The screw 216 engages the threaded portion 234 of a supporting sleeve 228 which is rotatable in the cylindrical recess 230 formed in a boss 232. The sleeve 228 is attached and rotated by a handle having moulded therein a metal thimble 242 containing a recess which freely receives the outward end of the screw 216, rotation of the handle causing the mounting screw 216 to move outwardly against the influence of the spring 218 and deform the contour of the door into engagement with the sealing ring. Specification 521,673 is referred to.