baber/WOPTO huggingface dataset:
Patent GB-124341-A (GB)
Title: Improvements in and relating to Electric Motor Control Systems.
IPC: H02P7/00
Filed: 1918-06-19
Abstract: 124,341. British Thomson - Houston Co., (General Electric Co.). June 19, 1918. Electric braking.-In a system of control for a series motor, a dynamic braking-circuit is established when the controller is moved from either its forward or reverse position to the off position without reversing the current through the field windings. The circuits include reversing-contactors B<1> - - B<4> and resistance-controlling contactors, D<1>, D<2>, D<3>. Interlocked braking-relays G, H and running relays K, L are arranged under the direct control of the controller C. When the controller is moved so that contact is made on the right-hand row of segments, the contactors B<1>, B<3> are lifted to secure forward rotation and the relay L is lifted to short-circuit the resistance R. The motor starts with the resistances R<1>, R<2>, R<3> in series, and these are cut out in order by the contactors D<1>, D<2>, D<3>. The relay G is also lifted in this position of the controller. When the controller is moved back to its off position, the relay L opens and the relay K closes: the contacts B<1>, B<3> open and the contactors B<2>, B<4> close, the actuating-currents of the latter pair passing through the contacts of the relay G. The motor armature is thus connected in a local circuit with the resistances r, P and field coil F. A small current also passes from the line through the resistance R and field coil F, thereby ensuring the same polarity during braking as during running. At a suitable current strength, the contactor D short-circuits the resistance r. Similar connexions are made when the controller is moved from the reverse position to the off position.
Patent GB-403263-A (GB)
Title: Improvements in scaling and fettling machines
IPC: B24C5/06
Filed: 1933-04-04
Abstract: 403,263. Sand-blast. SCHEMMANN, W., 116, Schwerterstrasse, Boele, and KOTTMANN, F., 31, Eppenhauserstrasse, both in Hagen, Germany. April 4, 1933, No. 10133. [Class 60.] A centrifugal machine for scaling or cleaning metal plates, castings, &c., by throwing abrasive thereon, comprises a rotating shaft 1 carrying two paddles 2, 3 displaced axially, curved backwards relatively to the direction x of rotation, and tapered towards their outer ends, abrasive being supplied to the paddle 2 at its inner end from a pipe 4. In a modification, a single paddle only is used, this being curved backwards, and in some cases also tapered.
Patent GB-417467-A (GB)
Title: Improvements in or relating to towers for use as or for carrying electrical conductors
IPC: E04H12/10
Filed: 1933-04-05
Abstract: 417,467. Aerials. BLAW-KNOX CO., National Bank Building, 5th Avenue, Pittsburg, U.S.A. April 5, 1933, No. 10242. Convention date, April 6, 1932. [Class 40 (v).] A mast for use as an aerial is supported on insulators at three or more points with freedom of movement thereon, and is anchored to the ground within the area enclosed by the points of support. The insulator supports 4, 5 are disposed in the line of the corner supports 6 and consist of truncated cones of refractory material loosely connected together by a dowel 9, Fig. 3. The anchoring device, Fig. 4, is formed of alternate metaltension and porcelain-compression members 23, 19, respectively, a turnbuckle 27 being used to regulate the pull on the mast. In a modification, Fig. 8, the pull on the mast is adjusted by tension rods 39 attached to the anchoring point 3 and to an insulated cap 37 supported by an insulator 28 carried in a socket supported by bars from the main mast supports 6. In a further modification, Fig. 9, the mast is supported at four points by pins 48 on the insulator caps 47, and the pull on the mast is adjusted by a centre rod 56 and nuts through a central insulator 54.
Patent GB-558274-A (GB)
Title: Improvements relating to actuating means for variable speed power transmission mechansms
Filed: 1942-07-22
Abstract: 558,274. Automatic control systems. HUMBER, Ltd., and SAMPIETRO, A. C. July 22, 1942, No. 10249. [Class 38 (iv)] [Also in Groups XXIV and XXXVII] Variable-speed gearing is controlled automatically in accordance with the engine speed and/or load, by an electric motor which drives the gear-changing member, the motor being controlled by an electromagnetically - operated switch controlled by means responsive to speed and/or load, and also by the motor. As shown, the shaft m, of a gearcharging motor a has a pinion k meshing with a rack j on a plate g having cam slots h engaging projections i on the gear-controlling elements f so that gear changing is effected upon rotation of the motor in one direction or other. The motor a is energized from a battery b through a reversing switch n movable in opposite directions against loading springs q by an electromagnet p having windings r, S. The latter are connected to contacts 7a, 7b, of a switch z which has an arm 5 movable by an electromagnet 2 and by a piston 8 responsive to the pressure in the engine manifold. Winding 3 of the magnet 2 is shunted across a generator d, and a winding 4 is in series with the field winding l of the generator d which is driven from the engine and is connected to a cut-out e and battery b. Thus the switch arm 5 moves according to engine speed and load. The electromagnet p also has a pair of windings t, u, which can hold the switch n in either of its two extreme positions and which are connected to switches 18, 19, 20, actuated by rotary cams 15, 16, 17 on or driven by the shaft of the motor a. The switches 18, 19, 20 which are for ahead, reverse, and neutral conditions respectively, are connected to fixed contacts 13, 11, 12, co-operable with a switch 9 having a pivoted forked arm 10 connected to the battery b. A contact 14 is connected to the windings r, s. The vehicle clutch is released when changing gear by means of a spring-loaded valve 32 controlling a vacuum or other servo-mechanism 33 connected to the clutch. The valve 32 is opened by an electromagnet 29 the winding 30 of which is connected to the reversing switch n. A manually-operated rheostat 34 is included in the circuit. To synchronize the clutch parts 35, 35a, Fig. 3, before re-engagement, each part may carry a permanent magnet (not shown) for producing a rotary magnetic field. and is associated with three star-connected windings 36. The latter are connected to opposed sets of field windings 38, 39 of a small induction motor 37 connected to the engine throttle valve. Thus relative rotation of the parts 35, 35a, will open or close the throttle valve to produce synchronism.
Patent GB-645904-A (GB)
Title: Improvements in friction clutches
IPC: F16D43/22
Filed: 1948-04-13
Abstract: 645,904. Friction clutches. CLERK, R. C. April 13, 1948, No. 10299. [Class 80(ii)] A centrifugallyoperated torqueassisted friction clutch for a motor vehicle or an electric motor is engaged by balls 3 in conical camming pockets 4, 5 in a presser member 1 and plugs 6 of a reaction drum 2, each of the balls being surrounded by a loading ring 11 to increase its mass. A flange 2a of the drum 2 is secured to the driving member (not shown) between which and the axially moving presser ring 1 - a single driven disc (not shown) is engaged. The clutch is biassed to the disengaged position by tension spring links 9, of the type described in Specification 597,563, [Group XXXII], acting between the presser ring and reaction drum, and by compression springs (not shown) acting between the heads 13a of screws 13 secured to the loading rings 11 and a flange 7a of a ring 1 forming a presser ring bearing. To disengage the clutch at high speed or under load the latter springs are replaced by an axially slidable control member 16 having a conical bore 16a to engage the screw heads 13a. Axial control of the member 16, biassed to disengagement with the screw heads 13a by blade springs 20, is by a rotatable striking yoke 17 and a pivoted ring 18. A formula is given in the Specification defining the slipping torque of the clutch. The Provisional Specification describes a construction in which the disengagement biassing compression springs are replaced by blade springs fixed to the drum and bearing on the radially outer parts of the loading rings.
Patent GB-548825-A (GB)
Title: Improvements in or relating to magneto ignition apparatus
IPC: F02P1/00
Filed: 1941-04-18
Abstract: 548,825. Magnetos. BENDIX AVIATION CORPORATION. April 18, 1941, No. 10332/42. Convention date, April 8, 1940. Divided out of 548,805. [Class 35] The rotor shaft 18 is connected through splined-on bevel-gears 53, 54 to a shaft 55 at one end of which is the cam 59 of an interrupter and at the other end the arm 68 of a distributer, both being mounted so as to permit positive angular adjustment relative to the shaft 55. The insulating arm 68 is carried by a metal hub 69 splined to the shaft 55, the splines being equally spaced. The cam 59 is adjusted by a differential ratchet 65. A similar ratchet 27 allows the timing of the rotor shaft relative to the driving collar 23 to be adjusted. All these adjustments may be made to within one degree. The shaft 55 runs through a chamber 52 made grease-tight by rawhide packings 58 and filled with lubricant. The arm 68 contains a condenser 73. The unearthed contact of the interrupter is connected by lead 42 to the primary coil and condenser 39, which are arranged as in Specification 548,805. Ventilating passages are provided between the various chambers and a passage 82 connects to the outside air. The Specification as open to inspection under Sect. 91 includes also the subject-matter of Specification 548,805. This subject-matter does not appear in the Specification as accepted.
Patent GB-868092-A (GB)
Title: A method and a device to mount self-locking balance weights on crank webs
Inventor: KREMSER HANS
IPC: F16F15/28
Filed: 1958-04-01
Abstract: 868,092. Making crank-shafts; force fits. HANOMAG A.G. April 1, 1958, No. 10345/58. Classes 83 (2) and 83 (4). A method of mounting an arched balanceweight 3 on the crank web 2 of a crank-shaft 1 by means of cylindrical dowels 4 is characterized in that the balance weight is expanded by a shaped member which is pressed into the seat of the dowel to expand it sufficiently to allow insertion of the dowel, the piece being ejected from the seat by the dowel during its insertion. In an embodiment the balance weight is placed on the crank web with one dowel in position as shown in Fig. 1 and the seat for the other dowel is expanded by the insertion of a ball 6 with a tool 7 which is then used for inserting the dowel after the ball which is ejected by the dowel (Fig. 5).
Patent GB-1529865-A (GB)
Title: Method of forming pleated textile material
IPC: D06J1/00
Filed: 1976-03-12
Abstract: 1529865 Skirts J GROSS 12 March 1976 [12 March 1975] 10347/75 Heading A3V [Also in Division Dl] A panel for a pleated skirt which is outwardly flared from the waistband to the hem thereof, is formed by separately folding a part-annular fabric panel and a part-annular panel of relatively stiff paper in a cardboard pleating pattern, the radial dimension of the paper panel being longer than that of the fabric panel; fixing the pleats in the folded fabric panel when the latter is in the cardboard pleating pattern; placing the folded fabric panel in register on the folded paper panel with the paper projecting beyond the hem of the fabric; clamping the paper and fabric together in the folded position; and applying to the surface provided by the extreme outer edges of the clamped pleats a colouring matter, e.g. paint or dye. The fixing of the pleats of the fabric panel in the cardboard pleating pattern is effected by binding the assembly with tapes and placing it in a steam heated oven autoclave. After setting, the tapes are untied and the fabric panel is placed in register on the paper panel and this assembly is compressed between clamp bars 17 which have recesses 18 to accommodate the hem of the fabric panel. Whilst the pleats are clamped, paint or dye is sprayed onto the outer edges thereof and a pattern effect, e.g. a "saddle-stitch" effect, may be produced by placing screens over the surface of the pleats prior to spraying.
Patent GB-1384092-A (GB)
Title: Gas venting
IPC: F16L53/32
Filed: 1972-03-06
Abstract: 1384092 Tank wagons PROCOR Ltd 6 March 1972 [1 April 1971] 10401/72 Heading B7L [Also in Division B8] To vent hydrogen sulphide from a vessel 10<SP>1</SP> containing molten sulphur, a hot fluid (e.g. steam) is passed through a pipe system 50/52, which extends through the crust 30<SP>1</SP> formed on the sulphur and through a vent tube 57, the crust 30<SP>1</SP> thus being melted around the pipe system to form an aperture 32 and any sulphur blocking the entrance 58 to the vent tube 57 being melted, hydrogen sulphide then passing from beneath the crust 30<SP>1</SP>, through the aperture 32, into the space between crust 30<SP>1</SP> and a splash crust 31<SP>1</SP>, adhering to the top wall of the vessel, hydrogen sulphide being vented from this space via the vent tube 57 to atmosphere at 59. After venting, the sulphur may be heated by steam coils before opening a sulphur-discharge valve at the bottom of the vessel. In a modification, Fig. 1 (not shown) a single pipe, replaces the double pipe system 50/52. The vessel may be mounted on a railroad wagon.
Patent GB-1013644-A (GB)
Title: Improvements in and relating to roller shutters
Inventor: DOVER DONALD HENRY WILLIAM
IPC: E06B9/17
Filed: 1963-03-15
Abstract: 1,013,644. Roller shutters. DOVER ROLLER SHUTTERS Ltd. March 16, 1964 [March 15, 1963], No. 10439/63. Heading E1J. [Also in Division B7]  A roller shutter having interlocking hinged laths 1 with locking plates 6 secured to the ends of alternate laths as described in Specification 937,771 shanks 4 and rivets 5 and are of sufficient length to cover the two hinges 2 of the lath to prevent relative lengthwise movement of the adjacent laths and providing a bearing surface to slide in the guide channel 7, also has secured to the other alternate laths spacer blocks 9 of nylon &c. as by shanks 11 and rivets 12 which-provides a sliding bearing and supports for such alternate laths. The blocks 9 have concave end surfaces 13 to accommodate the adjacent convex surfaces of the locking plates 6 and the blocks 9 and locking plates 6 have concave surfaces 8, 14 to follow the surface of a roller or drum on which the laths may be wound.
Patent GB-1288194-A (GB)
IPC: B21D43/24
Filed: 1971-04-21
Abstract: 1288194 Feeding sheets BALZER DROLL KG 21 April 1971 [24 April 1970] 10515/71 Heading B8R Apparatus for separating a batch of a desired number of sheets, e.g. punched plates, from a pile comprises two holding members, e.g. an adjustable platen (22), Fig. 1 (not shown), and the plunger (14) of an hydraulic motor (12), urged together to compress the pile therebetween and a knife 58 intermediate said members and movable into contact with the edge of a certain sheet in said pile to separate the batch from the remainder, clamping means, e.g. a movable plate 64 and a fixed plate 52, being provided for clamping the sides of said batch adjacent said knife member such that when one of said holding members (14) is moved away from the other member (22), the portion 68 of the pile between the clamping means and the other member (22) is held under compression and the batch is subsequently removed, e.g. by an expanding mandrel 40 passed through punched holes in the plates. The knife 58 may be resiliently mounted on the clamping plate 64 and perform a scissor-like action with an associated knife 70, which pushes the remainder 72 of the pile from said portion 68, when the clamping plate 64 is advanced to the side of the pile by an hydraulic or pneumatic motor 60.
Patent GB-218765-A (GB)
Title: Improvements in or relating to automatic couplings for railway and like vehicles
IPC: B61G1/18
Filed: 1923-04-18
Abstract: 218,765. Husbands, H. W. S. April 18, 1923. Couplings, automatic; combined buffer and drawgear.-Comprises in an automatic coupling of the wristaction type the combination with the draw-bar of a coupler head having three projecting claw-like members thereon and a universal joint between the head and the draw-bar permitting the head to rock to the required extent without rotating relatively thereto. The draw-bar A terminates in a spherical head A' adapted to rock but not rotate in a socket E, by means of projecting pegs A<2> on the spherical head and E<2> on the socket, engaging in longitudinal recesses E<1> in the socket and A<3> in the head respectively, the pegs being centralized in the recesses by the action of springs G and H. Surrounding the socket E is a rotatable head B provided with three claws D, the rotation of the head being resisted by springs F housed in recesses in the head B and bearing at one end on pegs R projecting from the socket E. The head B can be rotated mechanically by a Bowden wire O<1>, Fig. 3, and locked in the uncoupled position by the engagement of the hooks O and P; the hooks can be released by the operation of another Bowden wire P<1>. The claws D on the head B are recessed on one side to form a hook, the top being flat to form a buffing face and the side opposite the hook inclined to facilitate the engagement of the opposing claws. An annular ring B<2> on the head houses a disc M, perforated to receive the outlet spigots of the conduits J, K, and capable of longitudinal motion by means of a cam slot N engaged by a stud B<3> from the head B. The outward face of the disc is covered with resilient material to form a joint with the disc of an opposing coupler, and the action of the cam N is such that the disc is only moved forward when the claws of opposing couplers are engaged. The inner end of the drawbar may be pivotally mounted to a point on the centre line of the vehicle and at an intermediate point in its length is coupled by a link to a pivot on the centre line of the bogie, the line being provided with an extensible spring for centralizing the coupling, or the link may be connected to the bar through a frame in which the bar is supported in a yielding manner. The inner end of the draw-bar may be supported on an horizontal pivot and be provided with an ordinary draught-hook which moves into coupling position when the automatic coupling head is lowered.
Patent GB-459590-A (GB)
Title: Improvements in or relating to projectiles
IPC: F42B10/46
Filed: 1935-04-06
Abstract: 459,590. Projectiles. SKODA WORKS, PLZEN, 37, Jungmannova, Prague. April 6, 1935, No. 10689. Void [Abridged as open to inspection under Sect. 91 of the Acts, Oct. 8, 1935]. [Class 9 (i)] Consists in providing contour caps for dissimilar projectiles of the same calibre, such as impact, time, armourpiercing, and shrapnel shells, so as to make them all similar in shape and ballistic properties. The Figure shows an armour-piercing shell 5 fitted with a contour cap 6 which carries the centring ring 7 normally provided on the shell. The cap may be formed of steel or of light alloy. When the cap is made of soft iron, aluminium, or soft alloy, it is stated to act as a Makarov cap.
Patent GB-109047-A (GB)
Title: Improvements in Hand Brushes.
Inventor: BAULD CHARLES SARSFIELD
Filed: 1917-07-25
Abstract: 109,047. Bauld, C. S. Aug. 23, 1916, [Convention date]. Bristles, fixing.-The bristles of paint and like brushes are secured in position between the tapering end of a sleeve B and a conical pro. jection A<2> on the handle A. The grip is adjusted as desired by screwing the handle more or less into the internally screwed socket or sleeve B. In the case of a flat brush, the projection A<2> is made separate in the form of a wedge. For multiple-socket brushes, dummy screwed members having conical projections are used.
Patent GB-936831-A (GB)
Title: Improvements relating to the production of p.n. junctions in semi-conductor material
Inventor: BULLOUGH RONALD
IPC: H01L21/00
Filed: 1959-03-26
Abstract: 936,831. Semi-conductor devices. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. March 11, 1960 [March 26, 1959], No. 10696/59. Class 37. A PN junction is produced by heating a monocrystalline body containing oxygen as a solute and both type of activators to produce diffusion and deposition of one or more of the activators of one type in the vicinity of a crystal defect so as to render inactive in this vicinity an actuator which was initially predominant and thus form a region of opposite conductivity type to which an ohmic contact is applied. In one example a P-type monocrystal of silicon containing aluminium and phosphorus, the aluminium predominating, is heated to between 1200‹ and 1250‹ C. in a sealed quartz container, so that the aluminium combines with oxygen at the surface of the silicon whereby the surface region constitutes a " sink " for the aluminium causing diffusion of aluminium from the region adjacent the surface. The phosphorus is not affected, and Fig. 1b shows the concentration variation after the heating in which the fall-off in aluminium concentration towards the surface results in the formation of a PN junction. A similar effect occurs at dislocation in the crystal resulting in the formation of N-type regions around the dislocation to provide a PNP structure. The necessary oxygen may be provided from the silicon body, which for this purpose may be prepared by using a quartz crucible in the crystal draining process. Dislocations may be located by etching, and the N-type surface skin removed by grinding, followed by further etching to provide a PNP unit such as shown in Figs. 4a and 4b. Contacts to the N-type region may be made by means of an antimony doped gold wire, and to the P-regions by means of an aluminium wire. Ring electrodes may be used. Alternatively, instead of removing the surface skin, diffusion of impurity into the surface may be provided to lower the resistivity so that contacts may be applied. Subsequent etching of unmasted regions may be employed to enable connections to be made to the P-type regions to provide a PNP arrangement as shown in Fig. 6b. In a sample containing a multiplicity of dislocations, a plurality of PN junction devices such as an array of diodes may be produced simultaneously; the body may be sliced to provide separate devices. Preferably, the dislocation density should be between 10 and 10,000 dislocations per sq. cm.
Patent GB-754565-A (GB)
Title: Improvements in stripping vinylidene chloride-vinyl chloride copolymers
Inventor: JR THOMAS WALKER FISHER
IPC: C08F6/00
Filed: 1954-04-12
Abstract: In a process for stripping unreacted monomers from a copolymerization mass containing a major proportion of vinylidene chloride and a minor proportion of vinyl chloride, an alkyl acrylate, particularly methyl acrylate, is introduced into the mass just in advance of the stripping operation.  The product comprises the vinylidene chloride-vinyl chloride copolymer together with small proportions of copolymers of vinylidene chloride with the acrylate and with the acrylate and vinyl chloride.  The copolymerization may be effected in solution in inert solvents, in aqueous emulsion or, preferably, in aqueous suspension in the presence of gelatin, starch or polyvinyl alcohol and of catalysts such as benzoyl, acetyl or lauroyl peroxide, peracetic acid or tertiary butyl hydroperoxide.
Patent GB-309737-A (GB)
Title: Improvements in or relating to air pumps for cleansing gas service systems
IPC: F17D3/16
Filed: 1928-04-13
Abstract: 309,737. Smith, W. G. L., Pickford, W. E., and Hattersley & Davidson, Ltd. April 13, 1928. Compound piston pumps. - An air storaga chamber for cleaning gas service systems has a compound air compressor, consisting of two or more cylinders, the piston rods for these passing out of the chamber through readily renewable cylinder ends. The air, entering the system through passage k is compressed, successively on the cylinders c, d, and e, and then passes into the storage chamber a through the valve h. The upper ends of the cylinders are closed by screw plugs, fitted with gland leathers to prevent leakage. Access to valve h can be gained through the plug t.