baber/WOPTO huggingface dataset:
Patent GB-1527205-A (GB)
Title: Knife having a strip steel knife blade sub-divided into break-off portions
IPC: B26B1/08
Filed: 1977-04-15
Abstract: 1527205 Knives MARTOR ARGENTAX E H BEERMANN KG 15 April 1977 [17 April 1976 (2)] 15755/77 Heading B4B A knife comprises a blade 12 subdivided into break-off portions 13 and slidable in a groove 25 formed in a handle 11 defined by two shells 26, 27, the blade being connected to a slider member 33 movable in a slot 19 and having an operating element 18 which is contained within a countersunk portion of the slot.
Patent GB-1129468-A (GB)
Title: Filter apparatus for removing dust from a crude gas
IPC: H03F9/06
Filed: 1966-04-07
Abstract: 1,129,468. Gas filter. THEISEN G.m.b.H. 7 April, 1966 [23 April, 1965], No. 15772/66. Heading B1T. A gas filter comprises a plurality of vertical beds 3 of granular material such as active carbon, through which gas is filtered from a common central inlet space to individual outlet chambers 1. and each bed is cleaned in turn by delivering gas to a nozzle 12 at the lower end of the bed to carry material up a central pipe 13 from which it spills over a screen (15) back into the bed, the conveying gas and some additional .gas drawn from the bottom of the bed and from the inlet space upwards through screen (15) carrying the dust removed from the material into a cyclone 17. In Figs. 1, 2 the inlet space has a row of three filter beds 3 on each side and a similar dust extraction means 12', 13' without the screen. While a bed is being cleaned, its filtrate outlet valve 6 is closed. Separate fans 9, 19 are shown on the respective sides of the dust extraction system, but in Fig. 3 (not shown) a single fan (20) returns dust extraction gas from cyclone 17 to nozzles 12. Excess gas, entrained with the material and through screens (15), is returned by conduit(s) (23) to the inlet space or to the outlet chamber of the bed 'being cleaned. The lower ends of the beds converge at 25, and grids 2, supporting the beds, may converge similarly. Each bed may be replaced by three beds in series, with different grades of material and different cleaning cycles.
Patent GB-777105-A (GB)
Title: Improvements relating to water softening or filtering devices
IPC: B01J47/00
Filed: 1953-06-09
Abstract: 777,105. Filters: softening water. RAINSFORD & LYNES, Ltd., and LYNES, R. K. Sept. 7, 1954 [June 9, 1953], No. 15805/53. Class 46. A tubular body 11, Fig. 1, of metal or a plastic such as polythene has at each end a perforate disc - like member 12, Fig. 3, secured thereto by spinning or rolling together a flange 12b on the member 12 and a flange 11a on the cylinder 11. Before the second member 12 is secured the cylinder is filled with zeolite crystals or the like. The annular bead 13 formed in the manner described, or otherwise, is provided to enable terminal adaptors moulded from a resilient and durable material such as vulcanised rubber, and having an internal groove (e.g. 14a), to be snapped over the ends of the complete cartridge. An upper terminal adaptor 14, Fig. 5, is shaped for attachment to a tap and a lower adaptor, Fig. 6 (not shown) has a central orifice at its lower end for discharge of softened or filtered water. In Fig. 1 each terminal adaptor comprises a dome 16 furnished with an internally screw-threaded metallic bush the top of which is flush with the dome surface. The upper adaptor 16 has screwed into it the terminal part of a " push-on " tap union 18, Fig. 9. For filling a washing-machine the nipple of a hose pipe may be connected to the lower adaptor 16. For hairshampooing or the like the nipple on one end of a flexible hose pipe may be connected to the upper dome 16, the other end of the pipe being connected to the tap ; the lower adaptor 14 is in this case omitted.
Patent GB-515225-A (GB)
Title: Improvements in or relating to brakes for vehicles
IPC: F16D65/14
Filed: 1938-05-27
Abstract: 515,225. Internal shoe brakes. BENDIX, Ltd., and ROBERTS, G. P. May 27, 1938, No. 15843. [Class 103 (i)] A brake operating hydraulic cylinder, also containing a brake operating cam is in communication with an auxiliary chamber, the effective volume of which is varied automatically in accordance with the pressure conditions in the cylinder. When the cam 23 is operated to apply the brake shoes 10, 11, pressure is reduced in the hydraulic cylinder 20. This pressure reduction is compensated by the auxiliary chamber 31 connected to the cylinder by a passage 30. The chamber 31 contains a rubber sleeve 34 telescoped on itself and supported against hydraulic braking pressure by the sides of the chamber and the plug 32 which secures the sleeve. When the brake is operated by the cam, however, the sleeve 34 unfolds to compensate the fall in pressure. Specification 487,802 is referred to.
Patent GB-767446-A (GB)
Title: Improvements in or relating to electron discharge devices and to electron sources therefor
IPC: H01J3/02
Filed: 1954-05-28
Abstract: 767,446. Thermionic cathode tubes. WESTERN ELECTRIC CO., Inc. May 28, 1954 [June 15, 1953; June 15, 1953; June 15, 1953], No. 15854/54. Class 39(1). An indirectly heated hollow cathode with an interior coating of emissive material has at least one aperture for the egress of electrons, the dimensions of the aperture being such and so correlated that the emergent beam has a predetermined cross-section and density, and a perveance of at least 10 x 10<-6> amps/volt<3>/2. The interior may be a closed cylinder, Fig. 2, with a circular aperture 14 of diameter D and length L, Fig. 3. A solid or hollow beam is obtained according to whether D/L is < 1 OR > 1. The cathode may be usefully operated at 700C., i.e. about 100 below the normal temperature for oxide-coated cathodes, and has high emission and high perveance under low accelerating voltages. The aperture may be frustoconical outwards or inwards, Figs. 5 and 6 (not shown), to control collimation, or convergence or divergence, of the beam. The aperture may be rectangular, Fig. 7 (not shown) and Fig. 8, producing a rectangular beam, which may be solid or hollow as B/L is <1 OR > 1. If the coating is a strip only, of less length than the length A of the aperture, as shown in Fig. 8, the condition B/L> 1 gives two planar sheets of electrons. Fig. 9 has an internal screen 30 which acts as a conventional control grid. In Fig. 10 (not shown), an internal pointed rod acts as a control or accelerating electrode. The hollow may be spherical, Fig. 11 (not shown), and may have more than one aperture, 114, 124, Fig. 14, each with its corresponding anode 111, 121. Fig. 16 has a toroidal hollow 152, with an annular orifice 154. In this arrangement, since no portion of the emissive coating directly faces the anode 157, the coating is shielded from positive ions and other particles from the anode. Fig. 18 shows another form of toroidal cavity 171, with an annular orifice 173. Under the condition for hollow beams, this arrangement produces two coaxial hollow beams, which may be of advantage for dual stream travelling wave tubes. The spherical cavity types may also have an internal control or accelerating electrode, Figs. 19 and 20 (not shown). If this electrode is of the pointed rod form, it may have a secondary emissive coating. A cathode may have several apertures, each with its corresponding separate anode which can be independently controlled to vary the current in one beam without affecting the adjacent beams. Similarly independent modulating electrodes may also be provided. Fig. 25 has a single anode 255 receiving electrons from the cathode 251 through several apertures. The cathode may be hemispherical, Fig. 26, to combine the advantages of a large internal surface and uniform anode-cathode spacing. The control electrode may be a mesh, or a plate with apertures corresponding to the cathode apertures.
Patent GB-402760-A (GB)
Title: Improvements in and relating to electric motor control
IPC: B66B1/08
Filed: 1932-06-06
Abstract: 402,760. Maintaining defined speeds of motors ; actuating controllers. BRITISH THOMSON-HOUSTON CO., Ltd., Crown House, Aldwych, London, JEFFERSON, H. F., Hillside, Bilton Road, Rugby, and GIVEN, R. D., 33, Russell Terrace, Leamington. June 6, 1932, No. 15995. [Class 38 (iii).] Speed control means for a motor may be coupled through alternative gearing to a constant speed pilot shaft so that desired rates of acceleration and retardation may be obtained, and means are also provided 'for operating the control means according to variations in speed of a shaft driven in fixed ratio to the motor speed, and the pilot shaft whereby a constant motor speed may be obtained. The invention is described in connection with a lift or hoist motor 20, Fig. 2. When a controller X is moved to position II contactor 6 is energised to start the motor 20, and energise a contactor 8 which starts a pilot motor A. At the same time electromagnetic clutches P, V, Fig. 1, are energised so that brush shifting gear on the main motor is adjusted by a shaft F, if the speed of the main motor is not in desired relation with that of the motor A, the comparison being effected by means of a shaft U driven by the main motor, and mechanical differential gear M.N. When the controller X is moved to position III a contactor 1 is energised to energise an electromagnetic clutch H which, by means of an auxiliary switch, de-energises the clutches P, V. The brush gear of the motor 20 is then operated to a high speed position by the motor A, and on attaining this position the clutch H is automatically de-energised, the clutches P, V being prevented from re-engaging by a switch 12 opened when the brushes are above the constant speed position. When the controller X is returned to its position II, the contactor 1 is de-energised, and a contactor 2 energised to energise an electromagnetic clutch D so that the motor A returns the brushes of the main motor to the low speed position. When the position corresponding to the constant speed is reached, the clutch D is de-energised, and the clutches V, P, energised, so that the main motor is again controlled for constant low speed. When the controller X is moved to its "off" position I, the contactor 6 is de-energised to disconnect the main motor, and the clutch D is again energised, and effects the disconnection of the clutches P, V. The main motor brush gear is returned to its lowest speed position, and switches 9, 9x, are thereupon opened to de-energise the clutch D and disconnect the pilot motor A. The system may be used for Ward-Leonard and field control of direct-current motors. The invention is also described as applied to a push-button lift control system with floor selective switches.
Patent GB-384995-A (GB)
Title: Electrode for accumulators
IPC: H01M4/14
Filed: 1931-06-01
Abstract: 384,995. Accumulator electrodes. SCHNEIDER, NL, 5, Gothestrasse, Radebeul, Germany. June 1, 1931, No. 15999. [Class 53.] An electrode made of a composition of lead and antimony and working without paste has a surface formed of alternating vertical grooves and ribs with parallel or radial walls, and terminating at a distance from the edge of the electrode. Both sides of the electrodes may be grooved. The Figure represents the cross section of an electrode, showing the frame a, ribs d and grooves c, the walls of the grooves being preferably 1 mm. thick and 1 mm. apart so that the ribs are 3 mm. wide.
Patent GB-492091-A (GB)
Title: Improvements in safety guards for machinery
IPC: F16P3/08
Filed: 1938-05-30
Abstract: 492,091. Machinery guards. STYLES, W. ELLERD-. May 30, 1938, No. 16074. [Class 80 (iv)] In safety guards of the kind comprising two side plates 1 to the front edges of which are hinged doors 2, a locking bar 5 is provided adapted to fall in front of the doors and prevent opening of the same unless the machine is at rest. For this purpose the bar has pivoted side arms 6, one of which is prolonged at 6a and connected by a rod 9 with the motor switch 11. If the bar be swung upwards about the pivots 7 the motor circuit is broken and the doors may be opened ; the open doors then prevent the bar falling to switch on the motor. In the case of belt-driven machines the arm 6a is connected to the belt fork. The device is shown applied to a dough mixing machine : it is specially applicable also to guillotines and presses.
Patent GB-551361-A (GB)
Title: Improvements relating to engineers' surface or marking-out and like tables
IPC: A47B27/00
Filed: 1941-12-12
Abstract: 551,361. Marking-off tables. CHATWOOD SAFE CO., Ltd., and BRUCKSHAW, H. S. Dec. 12, 1941, No. 16077. [Class 61 (ii)] An engineers' surface or marking-off table comprises a flat cast iron &c. metal top a free from ribs &c. likely to cause internal strains during casting and a concrete base b reinforced by bars c, d which may be tensioned while the concrete is setting, the overlapping of the top to the concrete being effected by screws g threading in lugs on the underside of the table top. The table is adjustably mounted by means of screws f on reinforced legs e.
Patent GB-138022-A (GB)
Title: Improvements in or relating to connecting rods for pistons
IPC: F16J1/22
Filed: 1919-06-26
Abstract: 138,022. Tierney, J. W. June 26, 1919. Pistons, attaching to and detaching from rod.- Relates to ball-and-socket connexions between pistons and connecting-rods, and consists in securing the ball in a cup in the piston by means of a cup formed on a resilient detachable member sprung into, and secured by a flange on, the piston. As shown, this member consists of a conical divided part d, which is sprung behind a flange c<2> on the piston. Pieces e<1> are provided to facilitate its contraction before insertion. Projections or recesses may, however, be provided to facilitate the use of tools in positioning the said member.
Patent GB-675269-A (GB)
Title: Method and apparatus for producing a fine spray
IPC: B05B1/26
Filed: 1948-06-16
Abstract: 675,269. Spray-producers. TEGTMETER, P. Nov. 23, 1948 [June 16, 1948], No. 16208/48. Class 69 (iii). A liquid jet emitted from an outlet a of a nozzle b strikes a convex deflector c on a support arm d, and a liquid film is produced which breaks up into a fine mist. The arm d is arranged to lie outside the said film.
Patent GB-396530-A (GB)
Title: Improvements in or relating to playing balls, particularly golf or the like balls, and the manufacture thereof
IPC: A63B37/00
Filed: 1932-06-09
Abstract: 396,530. Balls. DUNLOP RUBBER CO., Ltd., 32, Osnaburgh Street, London, BALL, S. G. and ALLEN, E. W., Fort Dunlop, Birmingham. June 9, 1932, No. 16282. [Class 132 (ii).] In the application of a cover of unvulcanized rubber, balata, guttapercha or the like or a mixture thereof to the core of a golf or other playing ball, a thin layer is first applied, after which a second layer to complete the ball is applied and allowed to dry, the construction is then vulcanized or semivulcanized by a gas or " cold " process and finally moulded. The thin layer may be applied by hand and affixed by heating and moulding but without vulcanization. The final moulding may include such strips as rolling or cold pressing and is completed by heat treatment in a two-part mould.
Patent GB-547819-A (GB)
Title: Improvements in static current converters of the grid-controlled electric discharge type
IPC: H02M7/00
Filed: 1940-11-13
Abstract: 547,819. Converting. ALLMANNA SVENSKA ELEKTRISKA AKTIEBOLAGET. Nov. 13, 1940, No. 16436. Convention date, Nov. 8, 1939. Drawings to Specification. [Class 38 (ii)] To enable voltage and power factor to be controlled independently in a polyphase converter of the grid-controlled electric discharge valve type, two groups of anodes interconnected by an interphase transformer are caused to operate in two different sequences, the sequences being characterized by the phase of commutation which (a) is uniform throughout a sequence, (b) is independently controllable in the two sequences, and (c) in at least one of the sequences is always in advance of the natural movement of commutation, the arrangement being such that each anode is alternately subjected to the commutation characteristic of one sequence and to the commutation characteristic of the other. Forced commutation is effected by the transition anode method involving charging and discharging of a condenser through the interphase transformer, by a superposed voltage wave, or by suppressor grids, and ignition control is effected by two independently regulatable sequences of grid control impulses which may be obtained from a rotary frequency converter giving impulses of only half the frequency of the anode voltages or from a grid-controlled valve impulse generator. Control of D.C. voltage in recitifier operation may be effected by advancing commutation in one sequence and retarding it in the other, or commutation may be advanced in both sequences so that, in the extreme case, the D.C. voltage may be reduced to zero, the arrangement then operating purely as a phase compensator. Specifications 530,181 and 534,344 are referred to.
Patent GB-1525872-A (GB)
Title: Methods of and apparatus for manufacturing laminated reinforced plastics sheet form material
IPC: H05K3/38
Filed: 1976-04-23
Abstract: 1525872 Laminates H P CARATSCH 23 April 1976 [30 April 1975] 16509/76 Heading B5N In a method of making laminated reinforced plastics, a plurality of webs 2 of sheet material, e.g. glass fabric webs are fed along predetermined paths each defined by a guide roller 3 and a deflection roller 4 into an impregnation bath 5 containing a curable or hardenable resin binder, e.g. an epoxy resin and contacted deflection roller 4, the resin being cured or hardened while calendering the multi-layer web and thereafter subjecting it to a flattening operation by roller pairs 22, the calendering is effected by moving the multi-layer web through a multi-roll calender 10 embodying rollers 11 to 18 such that it is flexed on alternate directions and wrapped tightly about the rollers with its opposite faces in turn contacting successive rollers so that the web is pressed first at one face, then at both faces together and then at the opposite face. The calender housing 19 may be provided with heating means or cooling means as may the rollers 11 to 18, the housing 20 of the flattening means and the rollers 22 thereof. In the embodiment shown, a copper foil 26 is contacted with one surface of the multi-layer web between the rollers 16 and 17, an additional foil being optionally bonded to the other face of the multi-layer web between rollers 15 and 16.
Patent GB-424749-A (GB)
Title: Improvements in intestinal irrigating device
IPC: A61M3/02
Filed: 1934-06-02
Abstract: 424,749. Colonic irrigators. ALLEN, J. D., 693, 5th Avenue, New York, U.S.A. June 2, 1934, No. 16511. [Class 81 (ii)] A colonic irrigator comprises a frame a adapted to be supported on a toilet bowl and carrying a plate c flanged at c<1> to receive a colon tube d, a valve member e slidable on the plate c and formed with a vertical passage e<3> communicating by a horizontal passage with a supply pipe h which is provided with a finger piece h<1> whereby the valve e is moved into or out of line with the colon tube to control the flow and discharge of water. The plate c is formed with slideways for the valve e the movement of which is limited by a stop c<4> and a detachable screw f. A yielding watertight-washer g of cork or the like is seated in the upper face of the valve. The frame a is rubber covered at b and has a cross member i formed with a slot il in which the tube h rests. U.S.A. Specification 1,918,681 is referred to.
Patent GB-699576-A (GB)
Title: An improvement in or relating to textile warping and beaming machines
IPC: D02H13/00
Filed: 1949-06-22
Abstract: 699,576. Warping and beaming machine brakes. WHITELEY & SONS, Ltd., W., and CHARLESWORTH, H. Sept. 22. 1951 [June 22.1949], No. 16521/49. Class 142(iv) [Also in Group XXXIV] When the swift is at rest, it is braked by shoes c applied to a brake drum d onthe shaft of the swift, the braking force being provided by a spring i acting through levers e, f. During warping, the brake is held off by an electromagnet g. For the beaming operation, the braking force of the spring is augmented by drawing together the levers e, f by means of a threaded shaft j engaging a nut k on the lever e, the shaft being turned by a hand wheel (not shown).
Patent GB-434294-A (GB)
Title: Improvements in sound reproducing apparatus
IPC: H04R25/00
Filed: 1934-06-04
Abstract: 434,294. Sound-reproducing circuits. POLIAKOFF, A., 14, Sutcliffe Close, Hampstead Garden Suburb, London. June 4, 1934, No. 16583. Drawings to Specification. [Class 40 (iv)] In sound-reproducing apparatus for the use of the deaf or in noisy places a telephone receiver (which may be of the bone conduction type) is used for each ear, one of the telephones dealing solely or mainly with the high audiofrequencies and the other responding normally. The invention may be carried out by the use of fixed or variable filters, e.g. transformer circuits of the kind described in Specification 381,540, [Group XXXV], associated with amplifiers or by merely connecting a small condenser in series with one of two receivers of the same kind. Alternatively a condenser receiver and a magnetic receiver may be connected directly in parallel. Where a very large high-note output is required, separate amplifiers may be used.
Patent GB-167926-A (GB)
Title: Improvements in buttons
IPC: A44B1/12
Filed: 1920-06-19
Abstract: 167,926. Smith, A. J. D., and Smith, A. D. June 19, 1920, Buttons, apparatus for making.-A button is made from a hemispherical metal stamping 1, Fig. 2, having a fabric covering 2 the edges of which are temporarily held by a cardboard disc 4. The edges of the blank placed in a die 5, Fig. 5, are bent or rolled together by plungers 6 so that they overlap, clipping the fabric cover 2 and forming a button, Figs. 4 and 7, circular in section and tapering to a point at each end. The button is attached by sewing through the fabric covering or a projecting tab 9 of fabric or other material clipped between the overlapping edges of the stamping.
Patent GB-912874-A (GB)
Title: Improvements in or relating to apparatus including polechanging asynchronous electric motors
Inventor: PEESEL HEINRICH
IPC: B66C13/26
Filed: 1961-05-08
Abstract: 912,874. Control of A.C. motors. STILL A.G., HANS. May 8, 1961, No. 16640/61. Class 38 (3). An asynchronous motor 5 which drives a hoist is associated with a pole-changing switch 2 controlled by master switch 1, the motor having a no-load stage corresponding with a minimum pole number, this stage involving a low power-input. A tachometer generator 3 and power-detector 4 are connected to locking circuits to prevent increase of motor speed unless the speed and power are at suitable values. The desired speed is selected at the switch 1, the actual pole-changing operation being automatically controlled by the switch 2. It is impossible to operate the motor in its noload (two-pole) stage when there is a load on the hook, and the motor must be started in a low-speed (thirty-two pole) stage.
Patent GB-640625-A (GB)
Title: Apparatus for bending long work pieces
IPC: B21D11/07
Filed: 1948-06-21
Abstract: 640,625. Corrugating. ARMCO INTERNATIONAL CORPORATION. June 21, 1948, No. 16673. [Class 83 (iv)] Formers.-Apparatus for bending tubing into serpentine shape comprises a fixed former 12 and a former 25 on a lever 15 mounted on a pin 16. The former 25 is carried on a carriage 26, slidable against pressure of a spring 35 in a slot in the lever 15. The tubing T is clamped to the carriage by a member 42 actuated by a cam 43. The tube T is positioned under the former 12 and over the former 25; the free end is anchored by hand bending about a support 7 and the clamp 42 is secured. On swinging the lever 15 by hand or power through 180 degrees, the tube is corrugated about the formers 12, 25 and a cam 9 moves the carriage 26 to release the tube from the formers. During the bending the carriage 26 rides on the arm 15 to allow for the shortening of the tube due to the bending. The formers 12, 25 may be grooved to bend two tubes and may be provided with flattened portions to assist removal of the bent tube.