baber/WOPTO huggingface dataset:
Patent GB-251597-A (GB)
Title: Improvements in coupling devices for the starting motor-dynamos of motor cars
IPC: F02N15/02
Filed: 1926-03-09
Abstract: 251,597. Soc. Anon. pour I' Equipement Electrique dos Vehicules. April 28, 1925, [Convention date]. Turning-gear.-A driving-arrangement for a dynamo serving also as an engine starter, as described in Specification 239,809, is provided with a friction coupling which slips in case of excessive stress or of backward rotation of the engine at starting. The arrangement comprises a planet pinion 9 movable axially on a screwed sleeve 6 mounted loosely on a spindle 7 to bring the pinion automatically into and out of gear with a fixed toothed ring 10, the pinion in its movement out of gear coming into engagement by means of teeth 37 with a member 60 on the planet carrier 21 and locking the gearing so that the dynamo is driven at engine speed. The member 60 is connected to the carrier 21 bv a friction clutch which in one form, Fig. i'. comprises friction washers 61, 62 held in engagement with a part 35 of the carrier 21 by spring washers 65 or a helical spring and an adjusting nut 66. In a modification, Fig. 4 the part 35 is still at 70 and its grip on a friction band 68 around the member 60 is adjusted bv a screw 72. In a further form. Fig. 6, the member 60 has a collar 75 with notches 76 engaged by a spring-pressed plunder 77 carried by a. lug 80 on the part 35. Specification 237,541 also is referred to.
Patent GB-1305229-A (GB)
IPC: F15B1/20
Filed: 1970-02-11
Abstract: 1305229 Hydraulic accumulators OLAER PATENT CO 11 Feb 1970 [18 March 1969] 6665/70 Heading F1D A movable valve member 17 Fig.1 for closing the liquid port 11 of a hydro-pneumatic accumulator of the bladder type has an annular surface 18 which sealingly abuts a seat 16 when the closure 17 is sufficiently displaced by the bladder 13 and closure 17 has a concave recess 19 facing port 11 whereby when closure 17 contacts seat 16 at one point as fluid leaves port 11, a depression is created in recess 19 and rocks closure 17 into its full closed position. As shown closure 17 is bonded to bladder 13 but in a modification the closure 17 Fig.5 is connected to the accumulator casing by a stem 26 and cross-piece 29.
Patent GB-1022842-A (GB)
Title: Improved dynamo-electric machines
IPC: H02K3/48
Filed: 1963-02-19
Abstract: 1,022,842. Securing dynamo-electric machine coils. LICENTIAPATENT-VERWALTUNGS G.m.b.H. Feb. 19, 1963 [Feb. 20, 1962], No. 6686/63. Heading H2A. A dynamo-electric machine has a winding bar 1 held in a slot by a pair of wedges 4, 5 whose outer sides are parallel mutually and with the machine axis 8 and bear respectively against the winding bar and a slot wall, whilst sloping sides of the wedges opposite the outer sides mutually engage under the force of a biasing means which tends to cause a sliding movement between the wedges such as to increase the distance between their outer sides. The invention is shown applied to the rotor 2 in which the slot wall is the bottom of the slot, and the means comprise a compression spring 6; in another embodiment, Fig. 2, not shown, the pair of wedges is replaced by two mutually abutting pairs.
Patent GB-939372-A (GB)
Title: Improvements in or relating to digital display apparatus
Inventor: JOHNSTON DAVID EDGAR
Filed: 1961-02-23
Abstract: 939,372. Electric selective signalling systems. BOULTON PAUL AIRCRAFT Ltd. March 2, 1962 [Feb. 23, 1961], No. 6700/61. Class 40 (1) In an apparatus for displaying as a digital number the amplitude of a variable A.C. signal, the sign of the display indicates the phase of the signal relative to that of a reference A.C. In the embodiment described the reference A.C. is applied to a variable differential inductor 1. Movement of the movable member of the inductor causes the amplitude of the A.C. output signal to vary, the phase of this signal depending upon whether the member is to one side or to the other of a position at which the output signal has zero amplitude. The difference between the varying signal and a signal derived from a counter 15 is obtained from unit 3 and rectified at 7. The resultant D.C. signal feeds a generator 11 which pulses at a rate dependent upon the D.C. level; these pulses are counted at 15 and the count displayed at 17. The counter 15 controls the amplitude of the A.C. signal generated by unit 5, and the phase of this signal, relative to the reference A.C., is controlled by unit 25 such that whenever the counter passes through zero, and hence whenever the phase of the varying A.C. signal from the inductor reverses, the phase taken by the signal from unit 5 depends upon the sign of the D.C. signal from filter 9. The sign is displayed at 30. The counter counts forwards or backwards depending on the sign of the signal from filter 9.
Patent GB-853861-A (GB)
Title: Controlling apparatus for extrusion presses
Inventor: JACZEK STANISLAW MICHAEL
IPC: B29C48/92
Filed: 1956-03-02
Abstract: 853,861. Automatic thickness control systems for extruded plastics. TELEGRAPH CONSTRUCTION & MAINTENANCE CO. Ltd. March 4, 1957 [March 2, 1956], No. 6706/56. Class 38 (4). [Also in Group XXIX] The diameter of extruded thermoplastic 11 (Fig. 1) is sensed by feelers 8 on scissor-type arms 2 and 3, the rear ends of which carry a pneumatic needle valve 6, variation in the closure of which varies the pressure applied to a diaphragm 31 (Fig. 3) and hence the position of core 40 with respect to an inductor forming two arms of an A.C. bridge; the bridge output is used to control the rate of extrusion or the speed of winding of the extruded material to maintain the diameter constant. The feelers 8 are preferably of heat-insulating material such as glass, or heat insulating bushes may be provided in arms 2 and 3.
Patent GB-127838-A (GB)
Title: Improvements in the Manufacture of Multiple Ply Wood.
Inventor: MERCER WILLIAM ALEXANDER
IPC: E04C2/14
Filed: 1917-05-11
Abstract: 127,838. Mercer, W. A. May 11, 1917. Plastic compositions containing casein &c.-A cement consisting of 1 part by weight of casein glue powder made into a paste with 2 parts of water and mixed with part of wood flour is used ;n the manufacture of reinforced multiple-ply wood.
Patent GB-879590-A (GB)
Title: Improvements relating to the forming of sintered articles
Inventor: SALLIS WILLIAM ARTHUR
IPC: B30B11/26
Filed: 1959-02-27
Abstract: 879,590. Powder metallurgy. CHESTERFIELD TUBE CO. Ltd. Jan. 28, 1960 [Feb. 27, 1959], No. 6842/59. Class 82(1) [Also in Group XXII] A sintered extruded article is formed by charging sinterable powders such as a boron bearing steel powder into an open ended container 10, closing the open end with a disc 11, heating the powder and container which is then compacted in an extrusion press at a temperature high enough to sinter the powder, and then applying further pressure to extrude the container and sintered body through the extrusion die. The steel powder may contain 4% to 11% of boron and may be precompacted before charging into the container. The disc 11 which may be stainless steel can either have its outer end flush with the end of the container 10 (Fig. 1) in which case an intermediate pad 13 having a shoulder 15 effects the initial compaction until the shoulder 15 engages the container wall, further pressure then resulting in extrusion of the powder and container, or a thicker disc 17 (Fig. 4) and an intermediate pad 18 with no shoulder may be used. A tubular article may be produced by securing an internal tube in the container, packing the powder around the tube so that a mandrel on the press ram enters the tube on compaction and extrusion. After extrusion the outer sheath of the container material e.g. mild steel and the inner lining of the tube material can be removed from the sintered compact by pickling or machining.
Patent GB-403060-A (GB)
Title: Improvements in and relating to oscillographs
IPC: G01R13/28
Filed: 1932-03-07
Abstract: 403,060. Oscillographs. INTERNATIONAL GENERAL ELECTRIC CO., Inc., 120, Broadway, New York, U.S.A.- (Assignees of Allgemeine Electricitats-Ges. ; 2, Friedrich Karl-Ufer, Berlin.) March 7, 1932, No. 6861. Void [Abridged as open to inspection under Sect. 91 of the Acts, March 8, 1932]. [Class 37.] A number of electrical quantities are determined on the screen of a cathode ray oscillograph by connecting them in rapid sequence to a pair of deflecting plates, another pair of plates being influenced by a comparison quantity. Alternating voltages E<1>, E<2>, E<3> are applied to plates p<1> by rotating switches S, a comparison voltage being applied to the plates P<2> through a transformer T. If the switches are rotated rapidly, the relative phase positions and amplitudes of the unknown voltages can be compared. The time curve may be obtained by a condenser discharging slowly across a resistance. For low frequency circuits the pairs of deflecting plates may be connected to a rotary switch and rheostat, the arms of the switch and rheostat being driven by a synchronous motor. The switch mechanism for high-speed circuits may comprise opticalelectrical devices, or gaseous discharge tubes.
Patent GB-1457394-A (GB)
Title: Optical alignment system
IPC: G03F9/00
Filed: 1975-02-19
Abstract: 1457394 Optical alignment apparatus INTERNATIONAL BUSINESS MACHINES CORP 19 Feb 1975 [21 March 1974] 6904/75 Heading G1A [ Also in Division G2] Apparatus for aligning first and second objects comprises: means forming two channels of light polarized in different directions each having an elliptical cross-section; means directing each channel to a respective area of the first object; means imaging each area on to a corresponding area of the second object; and optical means receiving light from respective areas of the second object, each means including a polarizer aligned to the polarization direction of the corresponding channel. An integrated-circuit wafer 15 coated with photoresist is to be registered with an image, formed by a projection lens 13, of a mask 11 illuminated by a projection source (not shown). A 0À05"-diameter plane-polarized beam 22 from an argon laser 21, enlarged to 0À16" diameter by lenses 23, 25, is split by a parallel plate 27 and directed by mirrors 28, 29, 30 into convergent paths each inclined at 3À55 degrees to an axis X. One beam, having its plane rotated through 90 degrees by a half-wave plate 33, passes through crossed cylindrical lenses 36A, 36B of different focal lengths but spaced apart, to form an elliptical beam 22B focused at a common point 35B. The other beam, after passing through a polarizer 31 rotatable to balance the beam intensities, is similarly shaped by cylindrical lenses 34A, 34B to form an elliptical beam focused at a point 35A. After reflection in a mirror 37 the beams 22A, 22B, each now diverging from a main axis X' by 1 degree, are focused by the lens 13 on illuminated marks in target areas 16A, 16B on the wafer 15. Since the laser wavelength (5145) is chosen to differ from that of the projection source, focus is corrected by a weak lens 39. The target areas 16A, 16B are imaged by the lenses 13, 39 on corresponding target areas 12A, 12B of the mask 11, as shown in Fig. 2, the light passing on to respective lens systems 19, 17, each having polarizer 46, 45 aligned with the polarization plane of its channel. Alignment of the wafer 15 with the mask 11 is monitored by detectors which may comprise T.V. cameras providing signals to a CRT display and to corrective apparatus.
Patent GB-752820-A (GB)
Title: Improvement in plastic composition
IPC: B29C33/60
Filed: 1954-03-09
Abstract: A composition comprises polyethylene and a small amount of oleamide, e.g. 0.01 to 0.5 per cent, sufficient to reduce the coefficient of friction of films made therefrom to a value below 2.0.  Ethylene distearamide, or waxes such as hydrogenated castor oil, stearamide and hydrogenated stearamide, anti-oxidants, dyes, pigments, lubricants and antistatic agents may also be present. The composition may be prepared by adding oleamide as a solid, solution, or slurry in water or other non-solvent to dry, fluffy or powdered polyethylene, or the amide may be melt blended or a concentrate formed.  The composition may be cast, extruded or moulded into films, sheets, rods, tubes, piping and filaments or coated on to paper, cloth, wire, metal foil, glass fibre mats and synthetic or natural textiles.
Patent GB-1204562-A (GB)
Title: Improvements relating to air-conditioning apparatus
Inventor: COLES PETER ALAN
IPC: F24F13/26
Filed: 1968-02-13
Abstract: 1,204,562. Ventilating apparatus. COPPERAD Ltd. 7 Feb., 1969 [13 Feb., 1968], No. 6983/68. Addition to 1,105,592. Heading F4V. An induction ventilating or air conditioning apparatus as described in Specification 1,105,592 is modified by the inclusion of nozzle devices comprising nozzle bodies 2 integrally moulded with a nylon plate 3 of the primary air supply duct, each body 2 having a removable polyurethane tip 7 with one or more nozzles. Each tip element 7 is divided into separate compartments communicating with the individual nozzles. A retaining clip may be provided for each element 7. The nozzle bodies 2 are stiffened by external ribs (14, Figs. 1, 3).
Patent GB-101073-A (GB)
Title: Improvements in Apparatus for Controlling and Stopping Trains, independently of Drivers.
Inventor: BOUND ARTHUR FRANK
IPC: B60T13/46
Filed: 1915-08-04
Abstract: 101,073. Bound, A F., and Rowland, W. Aug. 4, 1915. Track apparatus actuating signals on trains and for stopping trains.- The locomotive is provided with two bracing- mechanisms separately operable from the track, one of which can only be reset after the train has been stopped, and the other can be reset from the vehicle. In resetting the latter, a secondary brakeapplication valve is opened The apparatus is designed particularly, but not solely, for carrying out the method of train control described in Specification 11,272/15. The full brake-application apparatus is described in Specifications 6807/14 and 5769/15. The apparatus which is reset from the vehicle comprises a brake valve 10 kept closed by the engagement of a sliding bolt 6 beneath the end 8 of a lever 9, the other end 11 of which holds down the valve stem. The sliding bolt 6 is removed against the action of springs (not shown) when a long curved shoe 1 carried on three pivoted levers 3 is moved inwardly by the track contact member 2. The apparatus is reset or put out of operative condition by a control handle 15, which is connected, as by a Bowden wire, bell-crank 14, and rod 13a, to the lever 9. When the lever 15 is in the resetting position, a valve 15<a> on the brake-pipe is opened, thus preventing the permanent cutting-out of the apparatus. A whistle 16 may be sounded when the brakes are applied, by arranging a cylinder and piston to operate the whistle valve when the brake-pipes are opened to atmosphere.
Patent GB-953117-A (GB)
Title: Improvements in or relating to protective headgear
Inventor: KEATING WILFRID
IPC: A42B3/22
Filed: 1962-02-22
Abstract: 953,117. Adjustable visors. D. LEWIS Ltd. Feb. 12, 1963 [Feb. 22, 1962], No. 7018/62. Heading A3V. An adjustable visor for attachment to a crash helmet comprises an eye shield 1 secured by rivets 7 to support arms 2 which are pivotally connected to folded metal plate (e.g. aluminium) member 3, riveted at spaced points 5, 6, to a helmet strap 4. Each support arm carries at its extremity in an aperture 8, a ball 9, engageable with spaced detents 10 formed in plate 3. One end of the helmet strap 4 terminates in an adjustable hook 11 which engages the rim of the helmet and is provided with a plurality of keyhole slots 12 which may engage button 13 attached to the strap thus allowing the strap to adapt to different helmet sizes. The other ends of the strap are tautly secured by screw-adjustable connection 14. By pulling or pushing the face piece to change the position of the visor the ball 9 is displaced from one detent 10 to another thus allowing the visor to lock in the desired position.
Patent GB-199082-A (GB)
Title: Improvements relating to machines for wrapping wire on guns and the like
IPC: B21F17/00
Filed: 1922-03-09
Abstract: 199,082. Armstrong, Whitworth, & Co., Ltd., Sir W. G., Hadcock, Sir A. G., and Forster, G. March 9, 1922. Coiling.-In a machine for wrapping guns &c. with wire, the tension of the wire is indicated by the movement of a spring from which is supported the axle of a wheel over which the wire is passed. A carriage having a platform b is provided with wheels c, d engaging above and below rails supported in brackets f. To the platform b are attached plates b supporting at their upper ends a cylinder k in which is housed a spring l. A plate p bearing on top of the spring is connected by a bolt q with a U-shaped strap o in which is carried a spindle m supporting a wheel n which can move with the yielding of the spring. The plate is connected by racks r and pinions s with pointers v moving over scales w, and also with a dash-pot y, the piston z of which is fitted with non-return valves. Guide rollers g are provided to lead the wire, independently of its varying position, directly to the wheel n. The pulleys are grooved so that the pull on the wire can traverse the carriage b on its rails.
Patent GB-272304-A (GB)
Title: Improvements in and relating to endless conveyors
IPC: B65G17/16
Filed: 1926-03-13
Abstract: 272,304. Boer, H. P. den March 13, 1926. Discharging devices for endless-chain conveyers.-Relates to endless conveyers, such as the conveyers of " travelling " ovens, and cumprises means by which the tins or goods carriers are tipped to discharge their contents. The tins 1 are mounted in carriers 2 suspended from the conveyer chains, and in one construction, Figs. 1 and 2, the tipping is effected by the engagement of arms 6 on the carriers in the spaces between projections 5 on a conveyer sprocket. In a modified construction the arms 6 pass into recesses in a disc keyed on the sprocket shaft, and in a further form the projections 5 are replaced by spring-pressed pins, which co-operate with a cam surface on a stationary plate. The pins hold the carriers for the time as they pass round the sprocket, and when the cam surface allows the pins to be withdrawn in turn, the carriers and tins fall into their normal suspended position by gravity. In another construction, Fig. 7, the tins are held by sliders 17, which are thrust in and out radially by the movement of rollers 20 in a cam groove 21. In a further form downwardly extending flanges on the carriers engage the periphery of a disc or guide, which may be fixed, or may rotate with the sprocket. Cam or eccentric mechanism may be provided to shake the tins when they have been inverted.
Patent GB-207740-A (GB)
Title: Improvements in thermionic valves
IPC: H01J1/15
Filed: 1923-04-13
Abstract: 207,740. Phillips, H. C. April 13, 1923. No Patent granted (Sealing fee not paid). Vacuum tubes. - A valve has one or more supplementary filaments which may be connected in circuit instead of or in parallel with the ordinary filament by means of a switch consisting of an arm H pivoted to a brass collar B. One end of each filament C, C<1> is connected with a lead D sealed through the glass support E. The other end of one filament is con - nected with the collar B and of the other filament with a contact G. The switch is moved into engagement with the contact G to connect the supplementary filament in circuit when the ordinary filament has broken, or to connect both in parallel.
Patent GB-720810-A (GB)
Title: Improved expanding mandrel
IPC: B23B31/40
Filed: 1953-03-13
Abstract: 720,810. Chucks. TOBLER, R. J. March 13, 1953 [March 14, 1952], No. 7072/53. Class 83 (3). The gripping members 2 of an expanding mandrel for holding rotating or fixed tools or work are fitted in slots in a hollow cylindrical body 1 and are moved outwards by relative axial movement between the body and a central cone 3 having bearing surfaces 13, the gripping members being held in contact with the cone by a flexible ring 4 fitted in grooves in the gripping members. The cone 3 may be screwed on a push-pull rod 5 and may be tapered so as to expand the gripping members either when the rod is pulled or when it is pushed.
Patent GB-774106-A (GB)
Title: Improvements in or relating to indicating, measuring or recording instruments
Inventor: CROSS SYDNEY HAROLD
IPC: G01R13/38
Filed: 1953-03-13
Abstract: 774,106. Electric indicating systems. EDWARDS & CO. (LONDON), Ltd., W. May 20, 1954 [March 13, 1953], No. 7075/53. Class 40 (1). [Also in Group XL (b)] The magnitude of a force tending to deflect an instrument needle or, as shown, a copper vane V of a Knudsen gauge, is determined by measuring the strength of the A.C. fed to a coil system L1-L4 arranged to produce a rotating magnetic field producing a restoring force on the vane V to bring it back to its zero position. The restoring torque may alternatively be adjusted by varying the frequency or phase shift between the pairs of coils L1-L4. The vane V may be supported by a torsion suspension fibre, or with torque-less suspension. As shown, light from a lamp S is reflected by a mirror M attached to the vane V on to a scale Y, the supply voltage to the coils L1-L4 being adjusted by a variable autotransformer T1 until the reflected light spot is back at zero on the scale, the energizing current, indicated by meter A, then being a measure of the pressure against the vane V. In the Provisional Specification the reflected light beam enters a photo-cell controlling an amplifier whose measured output energizes coils L1-L4 to rebalance the system.
Patent GB-142974-A (GB)
Title: Improvements in the manufacture of a base-exchanging compound and its use in the purification, or softening, or both purification and softening, of water
IPC: C01B33/46
Filed: 1919-03-21
Abstract: A base-exchanging substance, capable of purifying or softening water, is obtained by neutralizing with an acid a part of the soda in sodium silicate solution and drying and washing the product, about 20-80 per cent of the soda being thus removed.  In an example, a solution containing 1.86 per cent sodium oxide and 6.4 per cent silica is treated with hydrochloric acid of 1.1 density. The gelatinous product is dried and washed, when it breaks up into grains containing about 12.6 parts of sodium oxide to 87.4 parts of silica.
Patent GB-367200-A (GB)
Title: Improvements in carpet sweepers
IPC: A47L11/33
Filed: 1931-03-07
Abstract: 367,200. Carpet -sweepers . ENTWISLE & KENYON, Ltd. and KENYON, W. H., Ewbank Works, Accrington. March 7, .1931, No. 7136. [Class 138 (i).] At each end of a carpet-sweeper a lever A, Fig. 1, pivoted at a to an end iron 5, carries at the opposite end the brush stud B, and is. connected to one end of a lever D which is centrally pivoted to the end iron, and is connected at the other end to the axle 2 or wheel boss of the wheel 1. In a modification shown in Fig. 5, a lever E of spring steel, or spring- controlled, carries the brush stud B<1> which passes through a slot in the end iron and through a hole a<2> in the lever A. This arrangement permits the brush to be readily detached.
Patent GB-933546-A (GB)
Title: Folding trolley
Inventor: ABBOTT ALWYN
IPC: B62B3/02
Filed: 1961-02-28
Abstract: 933,546. Collapsible trollies. CAREFREE DOMESTIC APPLIANCES Ltd. Jan. 19, 1962 [Feb. 28, 1961], No. 7204/61. Class 108(1). A trolley having x-shaped side frame members 15, 16 and transverse braces 25, 26 has a pair of bars 35 having mutually embracing slides 36 to limit the separation of the members 25, 26 when the trolley is collapsed. The trolley is maintained in its erected position by the straps 28 and recessed lugs 29 on the tray 27.