baber/WOPTO huggingface dataset:
Patent GB-1344879-A (GB)
Title: Corrugated plate forming apparatus
IPC: B21D13/04
Filed: 1971-04-19
Abstract: 1344879 Corrugating metal sheet TOYOTA CHUO KENKYUSHO KK and TOYOTA SHATAI KK 19 April 1971 [7 April 1970] 26538/71 Heading B3E A corrugated plate forming apparatus coinprises a preforming stand A having two continuously driven rollers 3, 4, the roller 4 having spaced annular protuberances 41 with at least one interruption and the roller 3 corresponding recesses 31, a finish forming stand B having intermittently driven rollers 5, 6 having recesses 51 and protuberances 61 of sharper outline than those of rollers 3, 4, the distance C 1 -C 2  between planes containing the roller axes of the two stands being an integral multiple of the circumference of the forming surface of the roller 4 and the rollers 3 to 6 normally being driven at the same peripheral speed. The rollers 5, 6 are driven through a clutch/brake unit controlled by a relay which is operated by a normally open limit switch 26 and a normally closed limit switch 28. The rollers 5, 6 which are of smaller diameter than rollers 3, 4 are halted by a cam 27 contacting switch 28 when flat portions 52, 62 of the rollers are opposite each other, and are restarted by a cam 25 contacting switch 26 when the distances S 1 -C 1  and S 2 -C 2  become equal. Recesses 521, 621 in portions 52, 62 ensure a free space between the corrugated plate and the rollers when halted. Guide plates 104, 104<SP>1</SP> may be replaced by staggered rollers. The corrugated plate has its edges trimmed and is cut into lengths after forming.
Patent GB-1431664-A (GB)
Title: Gear assembly
IPC: F16H57/00
Filed: 1973-06-04
Abstract: 1431664 Mounting members on shafts; toothed gearing; circlips CATERPILLAR TRACTOR CO 4 June 1973 [7 June 1972] 26561/73 Headings F2U F2Q and F2H An assembly 10 (e.g. a cluster gear) comprises a shaft 11 (e.g. with splines 14<SP>1</SP> formed as extensions of gear teeth 14) a member 12 (e.g. a spur gear) mountable thereon, one having a sloping surface 13 and the other an abutment 20, between which is an annular element 13, 29 whose radial resilience urges the surface 13 and abutment 20 apart (e.g. to ensure contact of the member 12 with a shoulder 22 on the shaft). The element 13, 29 may be a split resilient ring of either circular, Fig. 1, or trapezoidal, Fig. 4, cross-section.
Patent GB-979404-A (GB)
Title: Improvements in or relating to apparatus for cleaning down flexible tubes in tubularfilters
IPC: B01D46/04
Filed: 1963-07-04
Abstract: 979,404. Cleaning tubes. STANDARD FILTERBAU-G.m.b.H. July 4, 1963 [July 16, 1962], No. 26577/63. Heading F2N. Apparatus for cleaning flexible filter tubes 11 comprises a chamber 19 adapted for reciprocal sliding movement along the filter tubes and having hollow annular members 20 adapted to surround the filter tubes and of slightly greater internal diameter than the outside diameter of the tubes, the members 20 having on their insides nozzles 21, 22 which project inwards far enough for them to indent slightly the filter tubes. The filter tubes are part of filtering apparatus 10 and extend between an inlet manifold 14<SP>1</SP> for dust-laden air and the end plate 16 of a dust hopper 15, the filtered air leaving at 1411. The nozzles are slits in the form of arcs subtending angles of more than 90 degrees and there are upper and lower oppositely facing pairs of nozzles, the pairs being at right-angles. As the chamber 19 is reciprocated, by a drive 18, air is blown in through an inlet 26 and passes through an articulated pipe connection 24, 25 into the chamber 19, whence it issues from the nozzles 21, 22. Figs. 6 and 7 show another arrangement for supplying air to the nozzles 21, 22. In this modification the inlet 26 leads to an air reservoir 31, the inner wall 32 of which is slotted at 32<SP>1</SP> from top to bottom. The slot 32<SP>1</SP> is sealed by two strips 33 of elastic material with flanged edges that are forced together by air pressure. A short conduit 30 projects from the chamber 19 and connects the interiors of the reservoir 31 and chamber 19 and is lenticular shaped so that it parts the strips 33 as the chamber 19 is reciprocated.
Patent GB-1430992-A (GB)
Title: Electromagnetic voltage regulators for controlling the charging  of storage batteries of automobile vehicles
IPC: H02J7/22
Filed: 1973-06-05
Abstract: 1430992 Automatic voltage control DUCELLIER & CIE 5 June 1973 [13 June 1972] 26698/73 Heading G3R A vibratory contact regulator for a generator charging a battery has a self-induction coil connected between a diode and a capacitor in series across the regulator contacts. A regulating resistor is connected in parallel with the capacitor. As shown, a vehicle battery 3 supplying loads 4 is charged by a generator 1 with an excitation winding 2 connected in series with vibrating contacts 7, 8 across the battery. The moving contact 7 is operated by a coil 6. A capacitor 10 prevents voltage surge when the contacts are opened, and is able to discharge through regulating resistor 14. A diode 11 prevents discharge through the contacts 7, 8, and a self-induction coil 12 with a saturable ferrite core 13 eliminates momentary discharge during the recovery period of the diode.
Patent GB-1249633-A (GB)
Title: Disposable cover for water closet
Inventor: NUTT WILLIAM OWEN
IPC: A47K13/16
Filed: 1968-06-05
Abstract: 1,249,633. Laminates. W.O.NUTT. 5 June, 1969 [5 June, 1968], No. 26711/68. Heading B5N. [Also in Division E1] An annular disposable water closet seat guard is made from a multi-leaf fibrous sheet. The sheet may comprise three layers of tissue paper, each made from bleached sulphite, cellulose pulp and a fractional percentage of additive in the form of an amine reacted rosin salt. The guard may comprise an oval annulus, outer dimensions 16 x 13¢ inches and inner dimensions 11 Î 9 inches. The tissue paper is cut to this size in a three layer thickness using a tool which crimps the edges while cutting to produce a unit which when packaged does not separate into single layers. Alternatively, a two-layer thickness, subsequently crimped, may be used. The guard may comprise two layers of bleached sulphite, cellulose pulp made without additives into tissue paper, of which one layer is impregnated with a polymeric stabilizer, and the other layer may be sprayed with a dispersion of talcum powder in water with the addition of a small proportion of polysiloxane oil emulsion. An impregnated layer as described above may alternatively be used between layers of tissue paper made with the addition of an amine reacted rosin salt as described above. The guard may contain a layer of bonded fibre fabric.
Patent GB-248669-A (GB)
Title: Overload time-lag protective arrangements for electric circuits
IPC: H02H3/10
Filed: 1925-10-26
Abstract: 248,669. Kirkland, J. W., (Allgemeine Elektricitõts Ges.). Oct. 26, 1925. Cut-out arrangements. - Selective overload time-lag relays for protecting sections of an electric circuit are brought into operative energization with the circuit by voltage relays, when the voltage of the section falls off to a minimum value or by combined voltage and current relays acting conjointly, when the voltage falls off and the current increases. By employing the voltage to start the time-lag relays, their correct action is less affected by differences introduced by the number of generators which may, at any time, be supplying the load. In the arrangement shown in Fig. 1, the current winding 13 of the induction disc relay 11 is permanently connected to the supply circuit, but the voltage coil 14 is only connected by the voltage relay 17, 18 when the voltage falls to a predetermined minimum. The voltage supply may be connected by a current relay the winding of which is short-circuited by a resistance open-circuited by a voltage relay. In the arrangement shown in Fig. 3, the armatures 17, 19 operated by voltage and current are mechanically connected together by a link 22 pivoted at 23 and the contacts 18, which control the supply to the voltage windings 14, are closed by the action of the current winding opposed by that of the voltage winding. In a modified interlinkage arrangement, Fig. 4, the armatures are not rigidly connected with the link 22. The momentary surge of current, on fault, lifts the armature 19 and causes closure of the contacts 18, thereby starting the time-lag relay, and the fall of the armature 17 due to the drop of voltage maintains the armature 19 raised even although the steady fault current itself is inadequate to maintain it raised. Specification 214,646 is referred to.
Patent GB-356940-A (GB)
Title: Improvements in and relating to electric ignition distributors
IPC: F02P7/02
Filed: 1930-09-08
Abstract: 356,940. Distributers. BRITISH THOMSON-HOUSTON CO., Ltd., Crown House, Aldwych, London, GOUGH, W. E., 20, Biggin Hall Crescent, Stoke, and TABBERER, G., 139, Lythall's Lane, Foleshill, both in Coventry. Sept. 8, 1930, No. 26798. [Class 38 (v).] The terminal segments of a spark-jump rotary distributer are moulded into two semicircular tracks 3, 4 and the upper ends are arranged in two straight lines so that the distributer leads 5 are of the same length. The rotating electrode-holder 9 has two electrodes 6, 7, one for each track, moulded into it at an angle of 180‹ and the electrodes are electrically connected by spring contacts to a metal insert connected to the high-tension supply. The lower part of the casing 2 comprises a metal casting of semicircular form arranged to give a safety spark gap 14 of uniform dielectric strength. Auxiliary electrodes set at an angle to the main electrodes, are connected to a supplementary source of high tension.
Patent GB-505081-A (GB)
Title: Improvements in or relating to engraving apparatus
IPC: B44B3/00
Filed: 1937-10-04
Abstract: 505,081. Copying by scanning. JACKSON, L. MELLERSH-. (Buggie and Co., H. H.) Oct. 4, 1937, No. 26827. [Class 40 (iii)] Engraving tools B are moved to and from the work A under the control of a light-sensitive cell I controlled by the shading on a record. The tools are moved in engagement with the corresponding glass tumblers A by a beam C, which is moved by an electromagnet D. The photo-electric currents produced by the design on a drum F are amplified before application to the electromagnet D, Fig. 1 (not shown). The drum and the tumblers are rotatably mounted on a carriage 22, which is moved upwards by a threaded vertical shaft 24 driven from a horizontal shaft 26 and engaging a stationary nut 25. When the carriage reaches its upper position, the driving motor is stopped and a light warns the operator to release the nut by means of a pedal actuating a rod 61. Each tumbler is supported on a revoluble disc 63 and is automatically centred by pads 71 which engage the inner surface of the tumbler. The tumblers are clamped to the discs by suction through a line 78. The shafts 65 for rotating the tumblers are mounted on brackets 67, which are moved away from the tools by manually rocking a shaft 86 at the end of each scanning, and before lowering the carriage 22. The shaft 31 rotating the drum F is also supported on a bracket 33 which can be swung relatively to the optical unit G. The tools B are driven by high speed electric motors 100, which are mounted on the beam C between adjacent tumblers. The tools are normally kept away from the tumblers by a spring E, and the magnet D is operated when the photo-electric cells are unilluminated. The beam C is supported on bars 125 and stabilized by a weight on the chain 128. The movement of the tumblers to the tools caused by springs 129 is limited by feelers 130. To secure a uniform depth of cut, the feelers are urged towards the tumbler by a spring 137 and controlled in position by rollers 168 which engage a templet 145. The rear surface of the templet is shaped in accordance with the curvature of the tumbler, Fig. 11 (not shown). The cutting tool is cooled by water from conduits 148 in a manifold 147. A roller 160 maintains the optical unit properly spaced from the drum despite any irregularities. When it is desired to engrave only a portion of the surface, the speed of rotation is increased elsewhere. For this purpose a templet drum 170, Fig. 12, is secured to the shaft 31 and has an area 171 of its wall cut away. When a follower 172 is in the relieved area, the driving motor is connected to a lowcycle circuit, and at other times it is connected to a high-cycle circuit, Fig. 13 (not shown). To allow.for acceleration the area 171 is. greater than the area of the pattern on the drum.
Patent GB-338630-A (GB)
Title: Improvements in hatch covers
IPC: B63B19/203
Filed: 1929-09-04
Abstract: 338,630. MacGregor, R. Sept. 4, 1929. Hatch covers. - Sectional hatch covers comprise pairs of plates 1<a>, 1<b> hinged together at 2 so that one plate can be swung over on the other and the pair slid off the hatchway on rollers 3 running on the hatch coaming or on fore-and-afters subdividing the hatchway. The abutting edges of the sections are protected by packing materials 9, Fig. 3, held in position by bars 10 positioned by studs 7 carried by a flange 1<c> secured to an hatch section and entering a recess in a flange 1<d> carried by the other. The hinges 2 are set back from the edge to position the studs 7 away from the edge when the sections are folded. Specification 305,836 is referred to.
Patent GB-1044204-A (GB)
Title: Molding composition and method
IPC: B22C1/16
Filed: 1963-07-08
Abstract: The individual grains of a foundry sand are coated with hydrated silicate by the reaction of a silicate reactant and a water solution of a concentrated caustic reactant to form a dry free-flowing mass. One of the reactants is mixed with the sand so that it is uniformly distributed over the surface of the grains, thereafter the other reactant is introduced into the mixer so that the reaction precipitates the silicate coating, hydration being effected to the dry state.  The silicate coating has a predetermined final ratio Na2O : SiO2 within the range 0.8 : 1 to 1.4 : 1 and in a preferred method a silicate syrup having a Na2O : SiO2 ratio greater than the final required ratio is added first and then a concentrated water solution of sodium hydroxide. The mixing zone may be cooled, e.g. to a temperature 85-110 DEG  F. to prevent loss of the bound water of hydration.  The binder solids comprise between 1-2% by weight of the sand.
Patent GB-503420-A (GB)
Title: Improvements in or relating to electrical oscillator apparatus for medical purposes
IPC: A61N1/32
Filed: 1937-10-05
Abstract: 503,420. Valve generating and modulating circuits. MARCONI'S WIRELESS TELEGRAPH CO., Ltd., and LAY, A. W. Oct. 5, 1937, No. 26970. [Class 40 (v)] [Also in Group VI] Electro therapeutic apparatus comprises a relaxation oscillator circuit, an oscillator circuit including a valve having at least a grid and an output electrode and so arranged that normally self oscillation does not occur, means for applying impulses from the relaxation oscillator circuit directly to the grid of the valve so that oscillation occurs when an impulse is applied and then dies away, and an output circuit fed from the output of the valve oscillator. In the arrangement shown, the impulses from the relaxation oscillator circuit, comprising neon tube V3, resistances R2 and P2, and condenser C7 (or a number of condensers in parallel) connected across a source of D.C. potential, are applied to the grid of valve V2 through a coupling circuit C8, P1. This valve may be an indirectly heated tetrode, having a Hartley oscillatory circuit, C9, L1 connected between the screen grid and anode, and negatively biassed by resistance R1. Transformer L2, L4 feeds the output circuit. The frequency of the relaxation oscillator is controlled by resistance P2 and may be of the order of 10 to 500 impulses per minute, and their amplitude may be controlled by potentiometer P1. The resistance P3 controls the oscillatory condition of the valve V2. In an alternative arrangement, the Hartley oscillator circuit is connected between the control grid and screen grid of valve V2 and the positive impulses are fed from the potentiometer P1 through a series resistance.
Patent GB-442662-A (GB)
Title: Improvements in and relating to transmitters for teleprinting machines
IPC: H04L17/06
Filed: 1935-10-01
Abstract: 442,662. Type-printing telegraphy. SIEMENS & HALSKE AKT.-GES., Siemensstadt, Berlin. Oct. 1, 1935, No. 27097. Convention date, Oct. 5, 1934. [Class 40 (iii)] A keyboard transmitter for type-printing telegraphy comprises a character signal storing device and an arrangement whereby when a character key and the case-shift key are actuated simultaneously the case-shaft signal is automatically set up on the same storage device. The signals are stored by pins 31, Fig. 1, on a storage disc 19 comprising two ratchet wheels. Actuation of the type key 1 releases the storage spindle 11 through a release bar 2, pawl 3 and lever 4 and sets the combination bars 80-84 which adjust the arcuate extensions 86 of levers 85 over a predetermined selection of the pins 31. A lever 40 controlled by a cam 12 on the spindle 11 presses the selected pins 31 through the disc 19 by coacting with the extensions 86 and the disc is moved forward one step by a pawl 41 on the lever 44 actuated by cam 13 on spindle 11. The reading-off members 24 ... 28, Fig. 2, on the other side of disc 19 are pivotally mounted on a plate 21 keyed to the spindle 20 and moved round with the disc 19 by the pawl 47. The reading-off movement of the members 24 ... 28 is effected by the release of pawl 47 through a lever 49 by a cam on the transmitting spindle 10 which is released for rotation by a lever 23 operated by a cam 48 on the shaft 20. The plate 21 thus returns one stop and the levers 24 ... 28 are positioned by pins 31 to co-operate with the contact levers 30 which actuate the transmitting contacts c. If the storage device is operated at a greater speed than the transmission of the signals, when the fifth combination is stored, a lever 76 operated by cam 50 on the spindle 20 locks the storage spindle 11 through cam 78 and also the keyboard in known manner. Storage of case-shift signal. When the caseshift key is operated simultaneously with a character key a change bar 87 is shifted to operate a shift lever 53, which thus has two positions, which through cam 15 on shaft 11 positions a rocker 54. In the right-hand position rocker 54 causes a lever 46 to be released through pawl 55 and holding pawl 56. The lever 46 is drawn against cam 14 and moved downward to advance the disc 19 one tooth through pawl 42 and to depress the centre pin of a row through lever 66 to set up the figureshift combination. The letter-shift combination is set up, when the rocker 54 moves to its other position, through members 59, 60, 45, 43 in a similar manner, this operation resulting in a movement of the disc 19 by one tooth only, no pins being moved for this combination. A modified but similar storage device is also described, Figs. 3, 4, 5 (not shown).
Patent GB-169102-A (GB)
Title: Improvements in and relating to demountable rims for vehicle wheels
IPC: B60B25/02
Filed: 1920-09-23
Abstract: 169,102. Copithorn, W. E. Sept. 23, 1920. Tyre attachments to rims.- In a segmental rim construction, a plate 4 riveted to one end of a section 2 has a tapered aperture 5 and notch 6 to engage studs 8, 9 respectively on the adjacent end of the next section 1. A locking-device, fitted at one of the joints may consist of a hook 13, Fig. 5, pivoted to the section 2 and engaging an aperture 16 in the adjacent section 3. Fig. 6 shows a modified locking-device consisting of a plate 18 riveted to the section 2 and engaging over a stud 20 on the adjacent section. The members 13, 18 are locked by turn buttons 17, 21 respectively.
Patent GB-1017893-A (GB)
Title: Improvements in hydraulic clamping devices
IPC: B29C33/20
Filed: 1964-07-02
Abstract: 1,017,893. Injection moulding machines. DESMA-WERKE G.m.b.H. July 2, 1964 [July 5, 1963], No. 27341/64. Heading B5A. The parts 14, 15 (Fig. 3, not shown), of a mould carrier are clamped by hydraulicallyoperated pairs of clamping jaws 13 mounted on holders 2d, 2b adapted to approach the mould carrier from opposite sides. The jaws 13 constitute part of pivoted clamping levers 7d . . . 10d, 7b . . . 10b operated by hydraulic cylinders 12. The holders 2d, 2b are mounted for equal and opposite parallel movement on parallelogram linkages 3d, 4d and 3b, 4b respectively. The holders 2d, 2b are actuated by an hydraulic cylinder 6, the parallelogram linkages being coupled by rods 5. A plate 18 is pressed against a lid of the mould by hydraulic cylinders 17d, 17b acting through pivoted levers 16d, 16b.
Patent GB-1036349-A (GB)
Title: Railway vehicle braking apparatus
Inventor: MARSH GERALD CRANTON
IPC: B60T8/18
Filed: 1964-07-02
Abstract: 1,036,349. Fluid pressure operation of brakes. GRESHAM & CRAVEN Ltd. July 2, 1965 [July 2, 1964], No. 27354/64. Heading F2F. [Also in Division B7]  A railway vehicle having a suspension system wherein the vehicle weight is transferred to the wheels through a primary spring 20 the ends of which are carried by a device 23 is characterized by the provision of a first and second brake cylinder, the first cylinder 2 being connected to the train pipe 1, the second cylinder 3 being connected to valve means 6 operable by movement of its valve stem from a first position wherein the cylinder is connected to the train pipe for operation thereby to a second position where the upper and lower chambers of the cylinder are connected, the stem being movable by deflection of the device 23 to the first position when the vehicle is loaded and to the second when the vehicle is empty. The device 23 may be a rubber or a coil spring or an hydraulic damper. The lever 19 may be adjustably pivoted at 24 and may be connected to the device 23 as shown or may be positioned to be engaged by the device when the latter is deflected. A one-way valve may be connected across pipes 5 and 7.
Patent GB-507238-A (GB)
Title: Improvements in or relating to the reproduction of sound by electro-acoustical devices
IPC: H04R1/24
Filed: 1938-10-10
Abstract: 507,238. Sound-reproducing devices; projection screens. LEACH, F. E., and BICKET, H. Oct. 10, 1938, No. 27368/37. [Class 40 (iv)] [Also in Group XX] In an electro-acoustic sound-reproducing device comprising a plane and relatively rigid diaphragm having areas adapted to respond to different ranges of sound frequencies and a plurality of electrical driving units operatively connected to the several areas, the driving units are constructed or operated to suit the resonant frequencies of the individual diaphragm areas which with they are respectively associated. The diaphragm d forms the central section of a kinema screen having a frame a and cross bars b, c and is cohstructed of diagonal strips of Rumanian piece with ribs f to which are connected moving-coil units g to which speech currents are supplied from amplifiers supplied with current corresponding to the frequency range of the associated portion of the diaphragm. Alternatively the units may be constructed to give maximum response over a range of frequency including the resonant frequency of the associated diaphragm area. The moving-coils are connected to the ribs f by rods i having a chuck k secured by a set screw l. The screen is completed by strips e of wood. The ribs may be interrupted to form a plurality of groups of various sizes, and, in a modification, intersecting ribs may form star-shaped figures, each figure or group being independent of the others and forming a separate resonant area. Specifications 328,840, [Class 40 (iv)], and 354,534, are referred to.