baber/WOPTO huggingface dataset:
Patent GB-340654-A (GB)
Title: Improvements in electric lamps
IPC: H01K3/30
Filed: 1929-10-16
Abstract: 340,654. Electric incandescent lamps. MARADEI, R. E. D., 2058, Mexico Street, Buenos Aires. Oct. 16, 1929, No. 31453. [Class 39 (ii).] Repairing; residual gases.-In electric lamps of the kind wherein the filament, globe, base, or any other part is renewable, the lamp base contains a valve cylinder provided with an axially disposed orifice that communicates with the atmosphere, and a laterally disposed orifice that leads into the bulb, a spring-pressed plunger being adapted to be moved downwardly within the cylinder to uncover the lateral orifice to facilitate the formation of a vacuum within the bulb. An adaptor is also provided to connect the lamp to a vacuum pump. The lamp base or cap consists of a shell P<11>, Fig. 18, of bronze or other metal the upper end of which is screw threaded for attachment to a socket, the lower end being expanded to a bellmouth and provided with a series of parallel slits to form a resilient gripping-edge which is rolled to receive a wire ring H. The inside of the rim contains a ring Q<11> of indiarubber or asbestos, and a series of four eccentric lever-clips P<111> around the outer edge are provided to control the grip upon the grooved edge of the globe Z<11> and ensure an airtight connection. The metal cylinder A contained within the lamp base has an aperture C at its upper end which is normally closed by a screw plug D, and the piston F is held at the top of the cylinder by a spring N around its plunger. An insulating-ring P and a filling of glass R<11> or other insulating material separates the cylinder A from the cap P<11>, an air duct R<111> being provided through the filling R<11> to communicate between the lateral port B of the cylinder and the interior of the globe. The filament, which may be of any form, is supported upon a glass stem Y<111> on a glass core I secured to the bottom of the cylinder A by a bayonet-joint, one of the leading-in wires X<111> being connected to a metal ring K in contact with a resilient metal strip V<111> secured to the cap P<11>, the other leading-in wire being connected to the cylinder A. The assembled lamp is connected to a vacuum pump through an adaptor comprising an outer cylinder Q with an indiarubber washer on its lower end which is adapted to be pressed into the aperture at the top of the lamp cylinder A when the screw plug D is removed, and a hollow inner plunger T<1> provided with a lateral aperture S<111> at its lower end is adapted to be forced downwardly to depress the piston F below the lateral port B of the cylinder, allowing the bulb to be evacuated by a pump connected to the top of the plunger T<1> by a pipe V<1>, A branch pipe may be connected to introduce a gas into the interior of the bulb. The movements of the cylinder Q and plunger T<1> are controlled respectively by links S<1> and S<11>, X co-operating with cam surfaces Y<11>, Z.
Patent GB-1130248-A (GB)
Title: Improved gyratory crusher
Inventor: PATTERSON WARREN RICHARD
IPC: B02C2/04
Filed: 1967-07-07
Abstract: 1,130,248. Gyratory crushers. ALLISCHALMERS MFG. CO. 7 July, 1967 [25 July, 1966], No. 31472/67. Heading B2A. A spiderless gyratory crusher comprises a vertically-adjustable head 57 cooperating with a ring 20 and supported on a vertically-adjustable post 25, which is slidably supported in a stationary hub 12. The head has a depending skirt 58 which receives gyratory motion from an eccentric gyratory drive sleeve 63 rotatably supported concentrically about the hub. Bearings 66 are provided between the hub and sleeve and bearings 71 between the sleeve and skirt. The bearings 71 comprise rollers between races 72, 74, the race or races 72 being fixed relative to the rollers and the race 74 having a vertical dimension sufficient to permit the second race to slide vertically relative to the first. In operation, lubricant pumped via a bore 45 lubricates a lower bearing and seal 22, the bearing 23, a step bearing assembly 55, bearings 66, 71, the ring gear and pinion 64, 76 and the bearing 65. Hydraulic fluid, pumped via inlet 30, raises a support piston 27 and hence the crushing mantle 60 to the desired position. Tramp material entering the gap opens a preset check valve 32 and relieves the head in known manner, speed and certainty of response being facilitated by the bearings 71.
Patent GB-825864-A (GB)
Title: Swinging panels for controlling access to feed troughs of pig pens
Inventor: OAKLEY ELSIE
IPC: A01K1/00
Filed: 1956-10-17
Abstract: 825,864. Feeding appliances for animals. WILSON & CO. Ltd., T. J. Oct. 15, 1957 [Oct. 17, 1956], No. 31542/56. Class 5(2). [Also in Group XXV] A panel 15, pivoted at 17 to the wall structure of a pig pen to control access to the feed trough 10, has pivoted to it arms 19 which jointly carry a longitudinal handle member 18 having end extensions which project for engagement with either of two sets of brackets 23, 24. In the pen 13, the extensions 22 are shown engaged with the bracket 24 to allow the occupant access to the trough 10. Raising the bar 18 disengages the extensions 22 from the bracket and permits the panel to swing down to the position shown for pen 12, when the extensions 22 ride up the ramps 23x to engage the brackets 23 and secure the panel in its access-denying position. For cleaning the pen, the panel may be swung up clear of the brackets as shown for pen 11 and laid back to rest against a tube 25.
Patent GB-1002060-A (GB)
Title: A piston for internal combustion engines and the like
IPC: F02F3/02
Filed: 1964-08-04
Abstract: 1,002,060. Pistons. KARL SCHMIDT G.m.b.H. Aug. 4, 1964 [Aug. 3, 1963], No. 31621/64. Heading F2T. In order to increase the area of contact between a piston and a cylinder in the plane of lateral thrust while maintaining the required clearance between them in the region of the gudgeon-pin bosses, the piston skirt has in cross-section a shape 2 which differs from the conventional oval shape 1 in the manner shown in Figs. A and B. The contact surface of the piston skirt may be broader on the thrust side 4 than on the non-thrust side 3.
Patent GB-533870-A (GB)
Title: Improvements in and relating to electromagnetic relays
IPC: H01H50/40
Filed: 1939-12-07
Abstract: 533,870. Electromagnetic relays. BRITISH THOMSON-HOUSTON. CO., Ltd. Dec. 7, 1939, No. 31673. Convention date, Dec. 8, 1938. [Class 38 (v)] The armature 5 of a relay is shunted across a portion 3 of a magnetic circuit 1, 3, 4 energized by a coil 2, the portion 3 being formed of a metal or alloy (e.g. of iron-nickel) the magnetization curve of which presents a sharp bend on saturation. There is substantially no flux through the gaps 7 of the shunt magnetic circuit until increase in current through the coil 2 brings the portion 3 to saturation in the neighbourhood of which point the flux through the gaps 7 increases very rapidly and the armature 7 is attracted. The relay acts therefore with great certainty for currents of that value. In a modification, Fig. 3 (not shown) the branch 3 is replaced by two branches in parallel, and one branch is encircled by a short-circuited winding. This causes the relay to operate sooner than normally for a rapid increase of current, the short-circuited winding preventing increase of flux in its branch, and the other branch in consequence becoming saturated sooner.
Patent GB-618138-A (GB)
Title: Improvements in or relating to lighting systems for cycles
IPC: B62J6/00
Filed: 1946-10-25
Abstract: 618,138. Self-contained supply systems. BIRMINGHAM SMALL ARMS CO., Ltd., and GOLDSCHMIDT, R. Oct. 25, 1946, No. 31675. Drawings to Specification. [Class 38 (iv)] Variable-speed generators, with-A lighting system for a cycle is supplied with current simultaneously from a primary cell and an alternator driven by the cycle. The cell may be series or parallel connected to the alternator ; in the latter connection a low-resistance choking coil is series connected to the cell, and in the former a low-resistance choking coil may be shunted across the alternator to provide a low-resistance circuit for the direct current. The lamp switch may also permit the use of the alternator or cell alone.
Patent GB-1425524-A (GB)
Title: Nut
IPC: F16B39/284
Filed: 1973-02-16
Abstract: 1425524 Nuts WILSON-GARNER CO 16 Feb 1973 31751/75 Heading F2H A free-spinning nut 17 to bear on a surface of a workpiece of softer material than the nut comprises a substantially annular flat bearing face 25 having an asymmetric recess 29 formed at its inner margin, the recess serving to trap displaced material of the workpiece when the nut is tightened, to key the nut against rotation. As shown, the recess 29 comprises two 180 degree sections 31, 33 of which the section 31 is twice the radial width, and preferably twice the axial depth, of the section 33. The two ends of the nut are preferably identical. Flutes may be formed in the side faces of the nut to form curved notches in the outer periphery of the bearing face, and these flutes are preferably arranged asymmetrically around the nut.
Patent GB-1466095-A (GB)
Title: Method of forming images by utilising sulphur
IPC: G03C1/725
Filed: 1974-07-17
Abstract: 1466095 Photographic processes FUJI PHOTO FILM CO Ltd 17 July 1974 [17 July 1973] 31763/74 Heading G2C A process of producing a visible image which comprising imagewise exposing to light a photosensitive material comprising a support and a layer containing amorphous elemental sulphur and optionally 10<SP>-4</SP> to 20 wt. per cent of a sensitizer and developing by (i) application of a solvent to remove unexposed areas, (ii) heating to remove sulphur by sublimation from the unexposed areas or (iii) applying a powder which adheres to the exposed areas. Specified sensitizers are organic compounds containing a CO, CS,-CONH 2 ,-NH 2  or NR 2  group. Alternatively, a receptor sheet may be placed in contact with the exposed material and heated so that the non-exposed areas are transferred thereto. If a Cu plate is used as receptor, a copper sulphide image is formed thereon. The powder image may be fixed by heating or alternatively transferred by heat and pressure to a receptor sheet specified powder developers are C black, dyes, C black/polymer mixture or metals, e.g. Fe, Cu, Zn, Sn or Al. In a further embodiment, the sulphur image formed by solvent development may be placed in contact with a receptor and heated to transfer the image to the receptor.
Patent GB-438086-A (GB)
Title: Improved valve gear for internal combustion engines having the cylinders radial or parallel to the main shaft
IPC: F01L1/42
Filed: 1934-11-05
Abstract: 438,086. Valve gear ; regulating. COOMBS, W. A., 14, Elizabeth Street, Prospect, South Australia. Nov. 5, 1934, No. 31764. [Class 7 (vi)] In engines having cylinders radial or parallel to the main shaft, the exhaust valves 1 and inlet valves 2 of all the cylinders, which are arranged radially in one plane about the main shaft, are actuated by the lobes 15 of a cam 14 rotated upon the main shaft 4 by means of links 20 which connect it to a planet wheel 25, which is mounted on an eccentric 26 on the shaft 4 and gears internally with a stationary toothed ring 28. The links 20 may be longer than the throw of the eccentric, in which case their ends work in slots 24 in the cam, and the rotation is effected by a series of impulses. When the links are equal to the eccentric throw, the slots are omitted and the cam is rotated uniformly. Each cam rocker 12 is forked to allow for the movement of the adjacent rocker. Regulating.-Adjustment of the valve stems is obtained by means of a cap screwed on the end and held in the adjusted position by a pin passing through the cap and stem.
Patent GB-1128053-A (GB)
Title: Acoustic signalling means particularly for telephone sets
Inventor: WHY JOHN FREDERICK
IPC: H04M19/04
Filed: 1965-07-26
Abstract: 1,128,053. Diaphragm vibrators. STANDARD TELEPHONES & CABLES Ltd: 18 July, 1966 [26 July, 1965], No. 31808/65. Heading G5J. [Also in Division H4] The conventional, bell of a telephone subset is replaced by an acoustic device in which an electric to acoustic transducer by being regeneratively coupled both electrically and acoustically to an acoustic to electric transducer resonates to give an H.F. output tone which is warbled. at the low frequency of the ringing current and interrupted in the usual ringing cadence. A resonant air chamber coupled to the electric to acoustic transducer improves the sound. level and may also provide the acoustic coupling to the other transducer. A mechanical coupling may replace the acoustic coupling, in which' case the second transducer may be mechanical to electric. Fig. 1 shows the circuit of a preferred acoustic device, where a capacitor C2 substantially blocks the ringing current supplied at 1, 2, to a telephone receiver Rx which has little acoustic damping but when once excited oscillations are built up via the acoustic and electric coupling to a telephone transmitter Tx powered by the low frequency ringing current. The receiver and transmitter may alternatively be in series and with C2 absent (Figs. 7 and 8, not shown). A thermal resistance may be present to provide a tone of increasing volume, the general level of which is manually variable. A diode in parallel with the receiver and C2 (Fig. 9, not shown) can vary the quality of the tone. A choke or capacitor blocks the H.F. feedback currents from the line. The resonant air chamber is tuned to the natural frequency of the receiver and to provide acoustic coupling may be a simple tube or horn in which the receiver and transmitter are suitably positioned as regards pitch and quality of the tone. Alternatively the two transducers may be accommodated inside a Helmholtz resonator comprising a main volume open to the ambient via a throat e g. the space between the base of the subset and its supporting surface. The acoustic coupling is varied to give the desired pitch by acoustic filters, horns, reflectors or additional resonating chambers. The receiver or alternatively the transmitter of the acoustic device may be one of the transducers of the subset speech circuit and switched into the ringing circuit by the gravity switch, or the receiver and transmitter may be entirely separate. Fig. 5 shows a telephone subset in which the speech receiver and speech transmitter are contained in the ear-piece and the handle of the handset is an acoustic horn open at the mouthpiece. The speech receiver Rx, with the handset in position, is switched into the ringing circuit and faces a resonant chamber 60 into which a transmitter Tx projects. Alternatively the speech transmitter is switched and is coupled via the mouthpiece to a resonant chamber containing a separate -receiver within the body (Fig. 6, not shown).
Patent GB-1525845-A (GB)
Title: 1,2,4,5-tetrahydro-3h-2-benzazepin-3-ones
IPC: C07C57/58
Filed: 1976-07-30
Abstract: 1525845 Benzazepines UCB 27 July 1977 [30 July 1976] 31846/76 Heading C2C Compounds of the general formula (R 1 =H or Ph; R 2 =H, alkyl, C 3-6  alkenyl, alkanoyl containing up to four carbon atoms, hydroxyalkyl, alkoxyalkyl, alkylaminoalkyl, dialkylaminoalkyl, cyanoalkyl, alkoxyacetyl, carbamoylalkyl, acetamidoalkyl, alkoxycarbonylalkyl or tetrahydropyran-2-yloxyalkyl, the alkyl and alkoxy radicals containing 1-5 carbon atoms except in the case of the acetamidoalkyl radical, the alkyl radical of which contains 2-5 carbon atoms; R 4  = H or C 1-4  alkyl; R 5 =H, C 1-4  alkyl or Ph; R 7 =H, halogen or C 1-4  alkoxy; R 8 =H, halogen or C 1-4  alkyl; provided that at least one substituent R 1-8  is present) are prepared by cyclization and/or introduction or modification of a 2-substituent. The preparation of intermediates is described. The above compounds are useful in psychogeriatrics, prevention and treatment of cerebro- and cardiovascular injuries, post-traumatic and toxic comas, memory disorders and concentration difficulties. They may be administered in the form of pharmaceutical preparations containing them in association with a carrier.
Patent GB-337946-A (GB)
Title: Improved process for making sheets or impregnations of rubber from rubber latex
IPC: C08J5/02
Filed: 1929-10-21
Abstract: 337,946. Imperial Chemical Industries, Ltd., and Clarke, R. B. F. F. Oct. 21, 1929. Latex, treating and coagulating.-A hollow gas permeable vessel, filled with carbon dioxide at a suitable pressure, is immersed in latex, and rubber deposited thereon. The carbon dioxide diffuses through the walls of the vessel and coagulates the rubber deposit. Material may be impregnated by wrapping it round the vessel and allowing impregnation to proceed to any required degree. The porous vessel may be of any shape to produce sheets or shaped articles.
Patent GB-352353-A (GB)
Title: Improvements in luminous electric discharge tubes
IPC: B61H13/02
Filed: 1930-10-24
Abstract: 352,353. Dischargelamps. GENERAL ELECTRIC CO., Ltd., Magnet House, Kingsway, London.-(Assignees of Patent- Treuhand-Ges. fur Elektrische Gliihlampen; 11, Ehrenbergstrasse, Berlin.) Oct. 24, 1930, No. 31996. Convention date, Nov. 30, 1929. Addition to 352,352. [Class 39 (i).] The luminous electric discharge tube claimed in the parent Specification is modified by forming the anode 20 as a cap which closes the end of the nozzle 17 at the upper end of the metal casing 9 enclosing the incandescent cathode 12, the discharge column being visible through a lateral slit 18 in the nozzle. An insulating ring 19 is interposed between the anode and the end of the nozzle.
Patent GB-1510487-A (GB)
Title: Motor vehicle tent extensions
IPC: B60P3/32
Filed: 1975-07-31
Abstract: 1510487 Vehicle tent extensions R J SEARLE 30 July 1976 [31 July 1975 28 Nov 1975] 31996/75 and 49118/75 Heading B7B A tent extension for the rear of an estate car is tailored to suit a car door whose free edge is higher than its hinged edge when it is open. A top wall of the extension at least partially overlaps the open door in order to prevent the entry of water. The extension may be supported entirely on the open door itself or may be partly supported on a frame which extends from the door. The frame may, as illustrated, be pivoted to the door for stowage purposes. Alternatively, the frame may be detachable, Figs. 3 and 4 (not shown).
Patent GB-493985-A (GB)
Title: Improvements in or relating to abrasive drums
IPC: C14B1/46
Filed: 1937-11-21
Abstract: 493,985. Abrasive drums. DUREX CORPORATION. Nov. 20, 1937, No. 32006. Convention date, Nov. 21, 1936. [Class 60] An abrasive drum for treating leather comprises a metal, &c. cylinder 11 mounted on a shaft 10 by means of hubs 13 to which are pinned, at 17, holders 18, in one end of each of which is journalled a stud pinion 20 having a groove 21 in the stud portion to receive a locking screw 22 carrying a nut 23. The pinions 20 each meshes with a gear 30 integral with a threaded sleeve 31 fitting in the threaded hub of a drum head 26 and held to the holder by a member 33. Projecting inwardly from each head 26 is a plate 35 having a diagonal slot 36 engaging a pin 37 projecting inwardly from the drum, so that when the pinions 30 are rotated by a wrench inserted through holes 25 in the heads 26, the rotation of the sleeves 31 causes the heads 26 to move axially, such movement being accompanied by partial rotation caused by the engagement of the slots 36 with the pins 37. A strip of sheet abrasive 40, shaped as in Fig. 4 is wound spirally round the cylinder 11 and its ends are clamped to the heads 26 by segmental clamps 42, three for each head of U -section, which fit over flanges 43 on the heads and are secured in position by screws 46 ; the pitch of the slots 36 is the same as that of the sheet abrasive. The cylinder 11 may have a groove therein to receive the edges of the sheet 40 when these edges are overlapped. The Specification as open to inspection under Sect. 91 comprises also a description of a leather surfacing machine similar to that described in Specifications 475,043 and 475,044. This subject-matter does not appear in the Specification as accepted.
Patent GB-896525-A (GB)
Title: Bristle sieving machine
Inventor: HOVORKA JIRI
IPC: A46D1/055
Filed: 1960-09-19
Abstract: 896,525. Sorting fibres. HANLON & GOODMAN CO. Sept. 19, 1960, No. 32149/60. Class 120(3) In a machine for sieving and/or sorting bristles, a mat of loose bristles is held in with the bristles in close side-by-side relation with their "butt" (or bulbous) ends and flag (i.e. the thinner bifurcated) ends haphazardly disposed at one edge of the mat and parallel pins, spaced apart a distance less than the butt end diameter and greater than the diameter of portions intermediate the bristles' ends, are forced endwise through the mat so that butt ends are caught between the pins and separated from the mat. As shown, a mat is entrained on a laterally inclined, endless conveyer comprising resilient belts 1 so that bristles are gravitationally urged into alignment with their ends against guide rails 7. An auxiliary conveyer comprising a carrier belt mounting resilient belts 6a exerts pressure (as determined by a fluidoperated piston reciprocable in a cylinder 17) on the mat and moves at a speed in excess of that of belts 1 so that bristles are rolled as they are advanced between conveyers. The advancing bristles are also engaged by the undulating edge of an agitator E so that projecting free ends are tilted and separated with the butt ends exposed to the action of successively applied sets of bristleremoving pins 36 rigidly mounted on a rotating carrier 37 so that pins of each set enter the mat at slightly different angles. A stripper mechanism for each set comprises fingers which sequentially enter between, move along and are retracted from, pins 36 under the action of pneumatically operated, spring-biased head bars 45 the operating cylinders and pistons for which communicate with air pressure and exhaust ports through ducts within the carrier, Figs. 4 and 5 (not shown). Removed bristles may be ejected at Y into a receptacle or, as shown, on to an endless belt conveyer K leading to a receptacle or suction collecting apparatus (not shown).
Patent GB-706170-A (GB)
Title: Improvements relating to electric motors
IPC: H02K9/06
Filed: 1952-12-19
Abstract: 706,170. Cooling dynamo-electric machines. HOOVER, Ltd. Dec. 19, 1952 [Jan. 2, 1952]. No. 32321/52. Class 35 A motor carries on its shaft 12 its own cooling fan comprising a 2-stage centrifugal fan having a fixed ring 40 secured to the end bell 2 and so arranged to divert the air flow outwardly from the blades 26 of the first stage fan disc 25 and redirecting it inwardly to the blades 35 of the second fan stage, the ring 40 being located entirely outside the periphery of the rotating parts. The cooling air is admitted through openings 21 after which the air flows partly via longitudinal holes 22 extending through the squirrel cage rotor 20 and partly between the frame central portion 3 and the outer perephery of the stator 7 through spaces between inwardly extending lugs 6 supporting the stator. The blades 26, 35 of the two discs have annular shroud bridges 27, 36 respectively near the edges of the blades.
Patent GB-1529525-A (GB)
Title: Bins
IPC: B65F1/16
Filed: 1977-07-29
Abstract: 1529525 Refuse bins GEECO PRODUCTS Ltd 29 July 1977 [4 Aug 1976] 32380/76 Heading A4A [Also in Division E2] In a refuse bin having a swing lid 3, the pivoting means for the lid comprises a pin 4 engaged in an aperture 5, said aperture having a detent 5a which is co-operable with a recess in the pin such that when the lid is swung to a generally vertical position, the lid is retained in the open position by the engagement of the detent in the recess.