baber/WOPTO huggingface dataset:
Patent GB-917824-A (GB)
Title: Improvements in or relating to magnetic transducing heads
Inventor: APPLEBY EDGAR PLEWS
IPC: G11B5/235
Filed: 1958-05-12
Abstract: 917,824. Magnetic recording &c. heads. THERMIONIC PRODUCTS (ELECTRONICS) Ltd. June 16, 1959 [May 12, 1958], No. 15175/58. Class 40 (2). A magnetic head, which may be multi-track, has the gap spacer made of polyester resin film which is found not to flake away and leave jagged trancducing gaps when the assembled core surfaces are ground. Specification 820,201 is referred to.
Patent GB-953048-A (GB)
Title: Fine measuring equipment
Inventor: KERR DAVID
IPC: H03M1/00
Filed: 1959-05-04
Abstract: 953, 048. Selective signalling systems. ULTRA ELECTRONICS Ltd. May 4,1960 [May 4, 1959], No. 15212/59. Heading G4H. In apparatus of the type, in which movement of a diffraction grating Y is measured by means of a continuously moving grating X and a fixed grating Z photocells P1, P2 generating reference and measurement signals respectively, a phase change of 360 degrees between the outputs of P1, P2 indicate that grating Y has moved by one line spacing, and a movement of grating Y through a fraction of a line spacing is measured by comparison of the measurement signal with a further train of pulses having a repetition frequency in Vernier relationship to the measurement signals. In one embodiment, a further Vernier diffraction grating is arranged for rotation with grating X, and the output Vs of an associated photocell is applied to one input of a gate G1, Fig. 5. The other input to G1 is a train of pulses (see Fig. 4) whose duration corresponds to the phase difference # between the reference and measurement signals where 0 # # # 360 degrees, so that bursts of pulses are supplied through gate G2 to counter C1, one VS pulse passing through G1 for each of a number of successive pulses on the other input. At the same time the gating wave form is passed through gate G4 to counter C2 which produces an output pulse, when 100 gating pulses have been counted, to trigger bistable circuit BS and prevent further pulses from reaching C1, C2. Monostable circuit MS returns to its original state after a time sufficient to allow counter C1 to be read, whereupon the gating pulses are applied to C1 through G3, G2 to step C1 on to zero whereupon a pulse is applied to reset BS, close G3 and open G4 to restart the cycle. The number of whole line spacings moved by grating Y is measured by a further counter (not shown) controlled by a three-state circuit a b c and gates GF, GR (Fig. 1). ABDC is a shift register in which each reference pulse is stepped from stage to stage after predetermined intervals. According to the relative phases of the measurement and reference signals, one of stages a b c will be triggered "off" and the other two "on" so that a pulse is obtained from GF or GR for every 360 degrees which the measurement signals gain or lose on the reference signals, these pulses being applied to step the counter forwards or backwards. Specification 953, 049 is referred to.
Patent GB-637951-A (GB)
Title: Improvements in and relating to cots and bedsteads
IPC: A47D7/02
Filed: 1948-06-07
Abstract: 637,951. Bedsteads. HOSKINS & SEWELL, Ltd., and HOSKINS, H. R. June 7, 1948, No. 15286. [Class 52 (ii)] In a bedstead or cot provided with a drop side the drop side is constructed with parts which are relatively slidable or collapsable to reduce the depth thereof when the side is lowered. As shown the drop side comprises upper and lower rails a. b interconnected by vertical telescopic members which consist of outer tubes e and inner rods or tubes f. Two of the members are arranged with the tubes e secured to the lower rail b and provided with bushes i which together with sleeves carried by the rods f form stops to limit the extension of the telescopic members. Hooks g embrace the tubes e, and when the side is lowered, engage the bushes i after which pressure on the top rail a depresses the latter to approximately the level of the mattress frame h. The upper rail a may be secured, when the drop side is raised, by supports c of any desired form.
Patent GB-427684-A (GB)
Title: Improvements relating to vehicles for use on banked runways
IPC: A63G25/00
Filed: 1934-05-22
Abstract: 427,684. Road vehicles. BARTLETT, J. N., 11705, Shadeland Avenue, Cleveland, Ohio, U.S.A. May 22, 1934, No. 15331. Convention date, April 13. [Class 108 (i)] [See also Group XV] An articulated vehicle is mounted entirely on castor wheels and runs on a rail-less banked runway. As shown, the front and rear sections 15, 17 of the car are pivoted at 16, and secured to the underside of the front section is a bar 18 carrying castors 19. Attached to the castor frames 20 are arms carrying springs attached to a bracket on the bar 18. A draw-bar 24 slidable in the bar 18 is pivoted to a cross-bar 25 secured to the underside of the rear section 17. Pivoted in brackets 26 on the bar 25 are frames 27 carrying at the front castors 29, the brackets 31 for which have arms secured by springs to brackets extending inwardly from frames 27, and carrying at the rear brackets 36 carrying castors 38, springs extending between arms on the brackets 36 and brackets on the frames 27. Rear castors 43 are carried in brackets 44 on a bar 45 pivoted to a bracket on the bottom of the car, and springs extend between arms on brackets 44 and a projection on the bar 45. Compression springs 50 in tubes 51 pivoted at 52 to the rear portion of the body are compressed between members 53 and plungers 54 pivoted on the front portion of the body. The car is propelled by a motor 56 on a platform 57 pivoted at 58 to a swivel 59 pivoted on a stud 60 on the car floor. A drive wheel 61 is mounted between arms 62 projecting from the rear of platform 57, and has secured thereto a sprocket driven by a chain 64 from a sprocket on shaft 66 fast on which is a sprocket 68 driven by a chain 69 from a sprocket 70 fast on the motor-shaft 71. Compressed air for operating the controls is provided by compressors 73 connected by tubes 74 to a tank 75 connected by a tube with valves 77, 78, 79, 80 controlling brakes, carburetters, gears and clutches. A number of cars may be coupled together to form a train, and the control valves 77, 78, 79, 80 on one car simultaneously controlling the corresponding mechanisms on another car, or the motors may be omitted and the cars gravity operated.
Patent GB-396524-A (GB)
Title: Improvements in or relating to fire extinguishing apparatus
IPC: A62C35/60
Filed: 1932-05-30
Abstract: 396,524. Fire-extinguishing. PYRENE CO., Ltd. and ZIESCHANG, R., Great West Road, Brentford, Middlesex. May 30, 1932, No. 15347. [Class 47 (ii).] Relates to apparatus of the kind em. bodying a container of highly-compressed fluid, a loaded piercer normally restrained by a trigger or the like, and a remote control for releasing the trigger through a flexible mechanical connection, and consists in the provision of a lost-motion connection between the flexible connection and the trigger. As applied to the apparatus described in Specification 370,057, the trigger 2 engages a groove 14 in a member 15 which is pivoted to the toggle links 17, 18 and is carried by a plunger 21. The latter is loaded by a single spring 3 which is shrouded by a sleeve 23. The trigger is held in locking position by a bell-crank lever 12, the pivot 13 of which is so arranged that the lever has no tendency to turn in a clockwise direction under the thrust of the spring 3. The long arm of the lever 12 carries a pin 11 engaging in a slot 9 in a member 10 fixed to the inner member 7 of a push-pull flexible transmission device 8. When the device 8 is actuated, automatically or by hand, the lower end of the slot 9 engages the pin 11 and turns the lever 12 in a clockwise direction, releasing the trigger 2. The slot 9 prevents accidental release of the trigger by slight movements of the transmission member 7. The compression spring shown may be replaced by a tension spring.
Patent GB-280127-A (GB)
Title: Improvements relating to fastening means for the cross wires of wire fencing or the like
IPC: B21F15/00
Filed: 1927-06-09
Abstract: 280,127. Blake, P. G. June 9, 1927. Wire fabrics.-The members k for securing together the intersecting wires of a wire fabric are of square shape bent cornerwise to V- formation, and are flattened about the intersections of the wires by a special tool.
Patent GB-348400-A (GB)
Title: Improvements in, or relating to, facing point locks for railways
IPC: B61L5/10
Filed: 1930-05-19
Abstract: 348,400. Locking railway points. APPLEGARTH, T., 48, Bloomfield Road, Darlington. May 19, 1930, No. 15402. [Class 104 (i).] In a facing point lock of the kind described in Specification 124,936, [Class 104 (i), Railway and tramway crossings &c.], comprising wooden blocks 9, 10 adapted to engage the points 3, 4, and connected by rods 11, 12 to slotted links 13, 14 carrying rigid frames 15, 16 provided with holes 45 .. 48 through which plungers 41, 42 are adapted to be moved by pins 37, 38 on levers 35, 36 mounted on a shaft 32 which may be rocked from the signal cabin by a rod 34,-the lugs 19, 20, which are pivoted in the frames 15, 16 and are adapted in one position to block the holes 45, 46 or 47, 48 and so cause the plunger 41 or 42 to push the frame, slotted link, rod 11 or 12 and one of the blocks 9, 10 into position to lock the closed point,- are connected by universal joints 24, 25 to a transverse rod 23 provided with an eye &c. 31 engaged by one cranked end 29 of a longitudinal rod 26 rotatably mounted in a bearing 27 on a sleeper &c. and having its other cranked end engaging an eye 30 in the connecting rod 7 of the points, so that, when the points are operated, the crank 29 moves the rod in the direction of movement of the points, thus putting the lug 19 or 20 into blocking position to cause the corresponding block 9 or 10 to be moved into locking engagement with the closed point when the rod 34 is operated.
Patent GB-185814-A (GB)
Title: Improvements in apparatus for determining the flash point of oils and the like
IPC: G01N25/52
Filed: 1921-06-03
Abstract: 185,814. Klee, F. H. M. June 3, 1921. Testing flash-point and burning-point. - Apparatus for determining the flash-point or burning- point of oils or other volatile liquids comprises a vessel externally heated by electrical means, and adapted to contain and allow ignition of the liquid under test. An apparatus for determining flash-points comprises an outer vessel b, Fig. 1, containing water and heated by electric heating- elements i, and an inner vessel a to receive the oil under test. A removable lid m carries a stirring-device n, and an agitator p, for mixing the air and vapour. The vapour is ignited electrically by a spark or by coils u, Fig. 2, which become red-hot by the passage of a current through them. A revolving contact-breaker t and brushes t' are adjusted so that ignition occurs when holes s in lid m are uncovered by the revolving shutters r. Another lid having larger holes may be used for open tests. For testing burning-point, the apparatus is modified as shown in Fig. 3, the inner vessel being absent. Oil, dropped from the tube y, is vaporized and ignited by the heat of the vessel a. Heated air or oxygen may be supplied through a pipe c' to aid combustion. The inner vessel a may be removed and a retort placed in the outer vessel b for initially distilling the oil.
Patent GB-1164757-A (GB)
Title: Watertight Cable Connection
Inventor: MARTIN HELMUT
IPC: H02G15/10
Filed: 1968-04-01
Abstract: 1,164,757. Sealing cable joints. KABELUND METALLWERKE GUTEHOFFNUNGSHUTTE A.G. 1 April, 1968 [1 April, 1967], No. 15472/68. Heading H2E. A plastics casing 14, 15 encloses a foil, e.g. of Cu or Al laminated with a plastics material, having its edges welded together as at 9 and being welded to metal sheaths at the ends of two cables so as to form a watertight seal around the joint between the cables.
Patent GB-290054-A (GB)
Title: Improvements in and relating to machines for displaying advertising matter
IPC: G09F11/02
Filed: 1927-06-10
Abstract: 290,054. Sadler, A. T., (Multi-Vue Advertising Pty., Ltd.). June 10, 1927. Roller-blinds, attaching to rollers. - A display band is attached to a flexible metal strap 66, Fig. 11, secured at the ends to collars 67 fixed by a set screw or other movable means one to each end of a roll 20.
Patent GB-653460-A (GB)
Title: Improvements relating to cash and like boxes
IPC: E05G1/00
Filed: 1948-06-09
Abstract: 653,460. Boxes. NEWTON, SHAKESPEARE & CO., Ltd., and TRAXSON, J. E. June 9, 1948, No. 15505. [Class 18] [Also in Group XXV] A cash or like security box is provided with apertures 6 in its base through which lugs 10 of a plate 7 secured to a table are adapted to project in which position a staple 11 or other securing means engages the lugs on the inside of the box to secure the box to the table and prevent its unauthorized removal. The plate 7 is secured to the table by screws which, when the box is in position on the plate, are inaccessible.
Patent GB-275569-A (GB)
IPC: A47L9/06
Filed: 1927-06-10
Abstract: 275,569. Inventia Patent - Verwertungs-Ges. Aug. 7, 1926, [Convention date]. Vacuum - cleaners. - The mouthpiece of a vacuum cleaner having bristles 3 is formed with a rounded tubular support 2 for the bristles. The support may be of rubber, and replaceably mounted.
Patent GB-1404594-A (GB)
Title: Mine roof supports
IPC: E21D23/00
Filed: 1972-04-05
Abstract: 1404594 Advancing mine roof supports GULLICK DOBSON Ltd 21 March 1973 [5 April 1972] 15575/72 Heading E1P The advancing ram 22, 23 of a mine roof support, see Figs. I and 2 (not shown), is mounted in a telescopic beam 17, 18 which in turn has the outer beam 17 journalled in the base of the support and the inner beam 18 connected to the conveyor, the piston 23 of the ram being connected at 25 to the beam 18 and the cylinder 22 of the ram being anchored at 24 to the beam 17. A holding down ram is provided and attached as to a point 27 on the beam 18 to-gether, if desired, with horizontally positioned rams which act sideways on the beam 17, 18.
Patent GB-862979-A (GB)
Title: Method of and apparatus for producing from strip metal ringshaped bodies having radial slots
Inventor: WELTER OTTO
IPC: H01F41/02
Filed: 1957-05-16
Abstract: 862,979. Cores for dynamo-electric machines. ELEKTRO-MOTOREN A.G. May 16, 1957, No. 15590/57. Class 35. [Also in Group XXII] A ring-shaped iron core having radial slots in an end face suitable for use in electromagnets or electric motors comprises a strip 1 which is slotted radially after winding on a former 6. The slots are cut in the outer layer of the ring as the strip is wound on, the slotting tool moving through previously cut slots in the inner layers to trim the slot. Prior to winding, the strip is lubricated with a polymerizable synthetic resin which subsequently hardens to insulate the laminations.
Patent GB-1017812-A (GB)
Title: Improvements in the treatment of cellulose
Inventor: COOPER HERBERT TERENCE
Filed: 1961-05-01
Abstract: Cellulosic fibres, e.g. regenerated cellulose, cotton, linen, and paper composed wholly or in part of natural or regenerated cellulose, are crease-proofed or their dimensional stability and water imbibition properties are modified, by impregnating them with an aqueous solution containing formaldehyde which is a buffered solution containing an acid and a salt and having a pH value maintained in the range of 1.7 to 2.8 and then heating them to effect reaction between the cellulose and the formaldehyde. The treating solution may be an aqueous solution of formaldehyde having a pH of 1.7 to 2.8 and containing an acid of dissociation constant at least 10-5, e.g. hydrochloric, sulphuric or phosphoric acid, and an alkali metal salt of the same acid or of another acid having a dissociation constant at least as low as that of the first acid.  Suitable acids and salts are hydrochloric acid and sodium acetate, malonic acid and sodium malonate, formic acid and sodium formate, sulphuric acid and potassium hydrogenphthalate, phosphoric acid and sodium dihydrogen phosphate.  The treating solution which preferably contains 0.8-14% by weight of formaldehyde may also contain softeners, lubricants, antistatic agents, stiffening agents or water or soil repellents, e.g. silicones.  The fibres may be dried at 50 DEG -110 DEG C. and then heated to temperatures of at least 140 DEG C. or drying and heating may be combined into a single operation.  Woven, knitted or non woven fabrics consisting of regenerated cellulose fibres alone or in admixture with cotton, acetone-soluble cellulose acetate, cellulose triacetate, polyamide, polyester or polyacrylonitrile fibres may be treated.
Patent GB-248236-A (GB)
Title: Improvements in machines for casting metals
IPC: B22D17/06
Filed: 1925-06-17
Abstract: 248,236. Greener, C. E. June 17, 1925. Casting - machines; metal - pouring; moulds; castings, extracting.-A machine for die-casting metals of medium melting point, such as brass, bronze, and aluminium, has a single moving member to control inlet and outlet of pressure fluid to and from the melting pot, to withdraw the cores, and to sever the runner. The nozzle c of the pot b is carried by a lid c<1> screwed or socketed to the pot b so that it can be easily removed. The frame 4 of the die d is hinged at e and rests on the nozzle to which it is clamped by moving a handle f, Fig. 2, to the right. A slide g is then moved by a handle y' or pressure cylinder y to the right, thus operating levers l, k to close the exhaust valve n and open a valve m which admits compressed air to the melting pot, thus charging the mould. The slide g is then moved to the left, allowing springs k<1>, k<2> to reverse the valves m, n and, by means of projections g', g<2>, operating core-extracting means h, j<1>, h<1>. The movement of the slide g also rotates a perforated block 7, Fig. 4, having eccentric joints with the die d and nozzle c, thus severing the runner. The slide g is then moved again to the right until a hole l, Fig. 2, comes into alignment with a lever s connected to the lever f so that the latter may be moved to the left to release the frame 4. As this is raised a spring 5, Fig. 3 lifts a rod 1 and closes a safety valve 3 in the air supply. A catch w, Fig. 2, operated from the frame 4 by linkwork v, x prevents the slide g from moving to the right far enough to operate the valves m, n.
Patent GB-365468-A (GB)
Title: Manufacture of sulphuric acid esters of high molecular weight
IPC: C09F1/00
Filed: 1931-05-28
Abstract: Sulphuric esters for use as wetting agents and assistants in the textile industry are made by treating with the addition product of sulphur trioxide and an organic base, in the presence of an excess of the base, a natural or artificial resin containing hydroxyl, or a hydroxy-fatty acid containing more than nine carbon atoms, or a derivative thereof.  In examples (1) shellac or the artificial resin made according to Example 3 of Specification 21566/08, [Class 2, Acids and salts, Organic &c.], or castor oil are treated with pyridine-sulphur trioxide (made from pyridine and chlorsulphonic acid, sodium chlorsulphonate, chlorsulphonic ethyl ester, or sulphur trioxide) in pyridine, and (2) colophony is treated with chlorsulphonic acid and dimethylaniline in monochlorbenzene.  Pine resin, gum resin, and ricinoleic acid are also specified as parent materials.  In a further example of the use of the products, woollen goods are impregnated with sulphuric acid containing the product from castor oil, dried, and heated in a carbonizing oven.
Patent GB-406997-A (GB)
Title: Improvements in and connected with rotary electric rectifiers
IPC: H02M1/22
Filed: 1932-06-02
Abstract: 406,997. Rectifying alternating current; motors. JONES, F. J. S., Moreton, New Road, Porthcawl, Glamorgan. June 2, 1932, No. 15675. [Classes 35 and 38 (ii).] Cummutator switching-arrangements ; motors with unwound iron armatures.-Apparatus for rectifying alternating current comprises a transformer 17 selected tappings on the secondary of which are connected to two sets of segments 9<a> carried in a ring 18 and cooperating with rotary brushes 8, the D.C. load which may comprise batteries to be charged, being connected between terminals 33, 34 which are in electrical connection respectively with the brush-carrying spindle and the centre point of the secondary winding. A changeover switch 25 is associated with the tap leads from the secondary windings to enable different values of output voltage to be provided for charging batteries of different voltages. The motor comprises a wound stator 3 co-operating with an unwound rotor in the form of a disc 4<a> with downwardly extending pole elements 4. To facilitate starting means are provided for supplying interrupted current to the stator winding. These means comprise brass contact studs 12 on the rotor poles adapted to co-operate with a fixed contact 13 when the latter is moved into operative position during starting. With the object of stabilizing speed during normal running there is provided a disc 22 resting loosely on the upper face of the rotor. An arrangement for rectifying polyphase A.C. is also described, this arrangement comprising three single phase transformers associated with three sets of commutator segments co-operating with centrifugal brushes, Fig. 4 (not shown).
Patent GB-559403-A (GB)
Title: Improvements in telephone systems
IPC: H04M15/00
Filed: 1942-11-09
Abstract: 559,403. Automatic exchange systems. AUTOMATIC TELEPHONE & ELECTRIC CO., Ltd. Nov. 9, 1942, No. 15775. Convention date, Dec. 20, 1941. Drawings to Specification. [Class 40 (iv)] An automatic ticketing system is arranged to cater for "extended service" subscribers who pay a higher flat rate than ordinary subscribers and are charged at a lower rate for long distance calls. The charge for such a call is calculated separately in the two cases, although it is always dependent on a rate factor and the duration of the call, and in the case of an extended service subscriber it is printed as so many call units instead of as an actual amount. The system described is a modification of that described in Specification 550,235, but without provision for party-line subscribers. The calculating switches in the printer-controller, one of which is selected by the rate switch, have two sets of wipers and the wiper-switching relay (R770) is controlled by a storage-relay group which in the case of a calling extended service subscriber receives a marking as the result of the operation of a marginal relay (R 1930) in the register-translator, this relay being controlled from the line switch. In that case the charge is printed as a number followed by the letter U signifying units. To reverse the charge, the called subscriber is instructed to dial O if he is an ordinary subscriber or 9 if he is an extended service subscriber. The dialled digit is received as in the prior Specification and sets a storagerelay group, which effects the printing of the corresponding special service digit. Moreover, if the digit is O, a relay (R840) is operated to disconnect the wiper-switching relay from its control from the calling line, whereas if it is 9, a fresh circuit is made for energizing the latter relay. Specifications 516,408, 516,409 and 530,674 also are referred to.