baber/WOPTO huggingface dataset:
Patent GB-760611-A (GB)
Title: Improvements in or relating to the production of laminates of films of solid polyethylene plastic bonded to other solid materials
Inventor: BRUCE CHARLES RICHARD
IPC: B32B27/00
Filed: 1954-02-26
Abstract: 760,611. Laminated materials and articles. BRITISH CELLOPHANE, Ltd. Feb. 23, 1955 [Feb. 26, 1954], No. 5803/54. Addition to 723,631, [Group IV (a)]. Class 140. Laminated materials and articles are made by bonding to other solid material by means of heat and pressure a film of polythene that has been irradiated with ultra-violet light to improve its bonding properties. The other solid material may be metal sheet or foil, paper, cardboard, cotton fabric, bonded fibre fabric, wood, paint (e.g. as a coating on wood), films of vinyl chloride polymer or copolymer, polymethyl methacrylate, polystyrene, cellulose acetate, or regenerated cellulose film. The superposed layers may be passed over a heated metal roller against which they are pressed by a second roller, or may be pressed between two heated sealing jaws, adhesion of the polythene to the heated jaw being prevented by interposing a sheet of polytetrafluoroethylene, or coating with silicone grease or polytetrafluoroethylene. The products may be used for bags and packages for holding wet or liquid products, vacuum packaging. Polythene-lined wooden boxes and metal containers may be made.
Patent GB-159207-A (GB)
Title: Improvements relating to the construction of helices for helicopters and similar flying machines
IPC: B64C27/467
Filed: 1921-02-21
Abstract: 159,207. Pateras Pescara, Raul, Marquis of. Feb. 21, 1920, [Convention date]. Screw propellers. - Consists in making the blades of screw propellers for use on helicopters with double curvature, and is more particularly applied to biplane-bladed propellers, Fig. 8. Reference has been directed by the Comptroller to Specifications 6649/86, 22019/93, 20770/94, 27662/08, 10098/09, and 27763/13.
Patent GB-743720-A (GB)
Title: Improvements relating to windscreen wipers
Inventor: BRAND FRANK STANLEY
IPC: B60S1/34
Filed: 1953-03-04
Abstract: 743,720. Overload-release clutches. TRICO-FOLBERTH, Ltd. March 4 1954 [March 4, 1953], No. 6053/53. Class 80(2) The arm of a windscreen wiper is pivoted to a head 1 which is connected to the driving shaft 7 through substantially a spring 15 and are formed with a pair of interengaging radial recesses and projections 11 so that the drive is disconnected on overload due to obstruction of the wiper arm. The shaft 7 is secured in a bore in the member 4 by a collet 9 and an externally-threaded nut 8. The head 1 is retained on the member 4 by a spring clip 23 and normally rotates therewith. The spring 15 is housed in the open upper end of the member 12 and reacts against a washer secured on a pin 17 whose flancylindrical clutch members 12, 4, whose opposed end faces are held together by ged lower end is held in a bore in the member 4. The member 12 is preferably slightly tapered and is secured within the head 1 by external splines. One or two locating flats are also formed between the head 1 and member 12, and a cut-away portion 25 in the flanged lower end of the member 12 co-operates with the clip 23 to provide a guide to the correct location.
Patent GB-1155227-A (GB)
Title: Improvements in or relating to Fluid Actuating Cylinders.
IPC: F16D65/22
Filed: 1968-02-07
Abstract: 1,155,227. Cylinders; hydraulic brakes. ALFRED TEVES G.m.b.H. 7 Feb., 1968 [1 March, 1967], No. 6053/68. Headings F2F and F2T. A brake cylinder is protected by a metal cap 7 slidable on the cylinder casing and having a depression for a thrust lever 5. The cap may slide over a seal ring 8 or within a sleeve when moved by a piston 2 having a packing 3 and a filler 4.
Patent GB-114502-A (GB)
Title: Improvements in and relating to Motor Driven Road Vehicles.
Inventor: STREET HENRY
IPC: B60P1/24
Filed: 1917-04-30
Abstract: 114,502. Street, H. April 30, 1917. Tipping-wagons. - In motor drays, lorries, or other road vehicles having the body adapted for tipping, the body is connected to the chassis by links 6, which may be held in the normal position by pins 10, to allow tipping about the pivot 7 also, and rollers 9 may be fitted on the chassis
Patent GB-346913-A (GB)
Title: Vehicle wheels with detachable rims
IPC: B60B23/10
Filed: 1930-02-24
Abstract: 346,913. Vehicle wheels. CLEVELAND, F. J., 29, Southampton Buildings, London.-(Akt.-Ges. der Eisen & Stahlwerke, vorm. G. Fischer; Schaffhausen, Switzerland.) Feb. 24, 1930, No. 6073. [Class 144 (ii).] Detachable rims are formed in lapped or hinged segments and mounted so as to overhang the wheel. In the form shown in Fig. 2, the rim segments 1 are formed with taper ribs 11a which are clamped over coned flanges 12 on the spokes 13 by means of a ring 14 and bolts 15. The rim segments are also formed with external ribs 6, 7 for positioning the tyre-beads 4, 5. In modifications, plain or wedgeshaped lips are formed on the flanges 13 or the ring 14 (or both) to engage corresponding recesses in the ribs 11a. The rim segments may be connected by an internal or external locking-ring. Fig. 10 shows an example of the latter form in which a wedge-section ring 33 fitted between flanges 34, 35 on the segments is clamped between the spokeends and the ring 14. Fig. 13 shows a twin rim device in which the inner rim 1 is formed with coned seatings 11 to engage lugs 42 on the brake drum 43, the outer rim 1<1> having coned seatings 11<1> engaged by a clamping ring 14 bolted to the wheel. A spacing ring 45 is fitted between the rims. Fig. 7 shows additional means whereby the rim may also be mounted symmetrically on the wheel. In this case, an additional (central) seating is provided by means of a ring 24 engaging grooves 23 in the rim segments. In this construction, the raised portion 26 on the rim segments serves to space the tyre beads.
Patent GB-884834-A (GB)
Title: Toy cash register
IPC: A63H33/30
Filed: 1959-02-23
Abstract: 884,834. Toy cash registers. ETTMEIER, K., ULLMANN, P., ULLMANN, H., and GRUNDY, A., [trading as TIPP & CO.]. Feb. 23, 1959 [Feb. 22, 1958], No. 6129/59. Class 132(3) In a toy cash register, vertically slidable indicators 9 are raised by depressing key members 5, 25 each having an aperture engaged by a pin 24 provided on a pivoted lever 22. The indicators are supported in their raised position by a comb 19, projections 17 of the indicator being engaged by a corresponding lug 18 of the comb. An indicator is supported until an effacer key 7 is depressed to rock the comb clear of the indicator projection 17 against the tension of a spring 21. Depression of the key 7 also causes a hook 33 to pivot clear of a till 3 which is then urged outwardly by a spring 37. A bell 42 is rung by a striker 44 actuated by a member 46 on the till. Springs 26 restore the key members 25 to their non-operated position.
Patent GB-286667-A (GB)
IPC: B61F5/52
Filed: 1928-02-28
Abstract: 286,667. Leonard, N. March 8, 1927, [Convention date]. Addition to 283,169. Axle-trucks and bogies.-In a bogie frame for a railway and like vehicle according to the parent Specification in which each semi-frame 1<1>, 1<2>, has two longitudinal spurs 25<1>, 25<2>, a jointing-plate 30 is adapted to be seated in grooves formed in the sides of two abutting spurs and may be connected thereto by rivets or bolts 31. The abutting ends of the spurs 25<1>, 25<2> are provided with corresponding ridges and depressions 26, 29 respectively, Fig. 8, which interlock; and which are disposed at right angles.
Patent GB-198436-A (GB)
Title: Improvements in appliances for placing paper tubes on mule spindles and the like
IPC: D01H9/02
Filed: 1922-03-03
Abstract: 198,436. Young, W., and Wild, J. March 3, 1922. Tube-applying apparatus.-A device for applying paper tubes to mule and like spindles comprises a frame a, Figs. 2 and 4, with a row of spouts b, and a second frame d which can slide transversely to the frame a and be advanced step by step to bring the tubes n, which are held in rows of receptacles e, over the spouts. The receptacles can be arranged in double rows and the upper part of the spouts flared to receive the tubes from either row. The frame d is provided at each end with racks g engaged by pawls h carried by slides i and having operating handles h'. The frame is locked in position by spring catches k, which can be withdrawn by projections h<2> on the handles h<1> when the handles are rocked about their pivots.
Patent GB-349515-A (GB)
Title: Improvements relating to variable speed gear
IPC: B62M25/00
Filed: 1930-02-27
Abstract: 349,515. Variable-speed gearing. CARR, R. G., The Elms, Castle Terrace, Berwick-on-Tweed. Feb. 27, 1930, No. 6493. [Class 80 (ii).] A three-speed gear connecting parallel driving and driven shafts 2, 3 comprises six constant-mesh gears through all of which the power passes on one speed. On shaft 2 are a fixed pinion 5, a loose gear 6 with clutch end 12, a loose and slidable gear 8 with clutch ends 10, 11, and a fixed clutch 4. On shaft 3 are loose and slidable coupled gears 13, 14 with clutch end 16, and a fixed gear 15 with clutch end 17. Gear 8 is engaged by a fork and for top speed it is moved to engage clutches 11, 4. The drive is through pair 8, 15. For middle speed, the above clutches are disengaged, and gears 13, 14 are moved by a fork so as to engage clutches 16,17. The drive is through pair 5, 13. For low speed, the clutches 16, 17 are disengaged and gear 8 moved to engage clutches 10, 12. The drive is through train 5, 13, 14, 6, 12, 10, 8, 15. A bevel gear 7 is shown for use with a kick starter upon a motor cycle to utilize multiplying-train 6, 14, 13, 5. A worm 20 is shown for driving a tachometer. A dynamo may be driven from gear 13 or pinion 5.
Patent GB-127642-A (GB)
Title: Improvements in or relating to Small Arms.
IPC: F41A3/26
Filed: 1917-05-08
Abstract: 127,642. Soc. Anon. des Etablissements Delaunay Belleville. March 20, 1916, [Convention date]. Breech actions, sliding breech-block. - Consists of a gas-operated gun having a system of levers, springs, and catches wherein opening, closing, and firing springs are simultaneously compressed by the movement of the gas piston. In the construction shown, the piston is driven forwards by the gases and thereby rotates a lever 9, to which it is connected by a rod 6. The lever 9 drives a slide 18 forwards by means of a lever 11 and link 16, thereby compressing the opening- spring 21, the closing-spring 29 which is arranged on a rod 25 pivoted to the boltactuating lever 30 and sliding in a sleeve 22 pivoted to the slide 18, and the firing-spring 42, Fig. 6, which is arranged on a telescopic rod connected to the slide 18 and to the hammer 46. When the slide 18 reaches its forward position, a pawl 23 on the sleeve 22 engages a notch 38 in the rod 25, thus holding the spring 29 compressed and positively linking the slide 18 to the actuating-lever 30. The spring 21 then reacts to open the breech, and, at the end of the opening movement, the pawl 23 is turned by a stop 40 to release the rod 25 and allow the spring 29 to close the breech.
Patent GB-1154306-A (GB)
Title: Rotary Valve for Inlet Control in Two-Stroke Engines
IPC: F02B75/34
Filed: 1967-02-10
Abstract: 1,154,306. I . C . engine rotary valves. HIRTENBERGER PATRONEN-, ZUNDHUTCHENUND METALLWARENFABRIK A.G. Feb.10, 1967 [Feb.11, 1966], No.6606/67. Heading F1B. In a two-stroke engine a rotary valve 8 surrounds a cylindrical extension 7 of the crankcase cover which projects coaxially into the crank-case, the rotary valve having a pivot 12 in its front wall 11 by which it is rotatively mounted in the extension, a crank-pin 4 engages the front wall to rotate the valve and the inlet pipe 16 leading to a port 15 in the extension has its axis at 30 degrees to the cylinder axis. A groove (17, Fig.2 not shown) carries oil from the crank-case via the spaces between the rotary valve 8 and the extension 7 to bore 13 and the inlet pipe 16.
Patent GB-1034450-A (GB)
Title: Improvements in electric circuit interrupters
Inventor: HEINTZ MILTON LOUIS
IPC: H01H71/68
Filed: 1965-02-16
Abstract: 1,034,450. Electromagnetic switches. GENERAL ELECTRIC CO. Feb. 16, 1965, No. 6675/65. Heading H2B. An automatic reclosing overload circuit breaker comprises a pair of pivoted levers 30 carrying a bridging contact rod 11 biased closed by a torsion spring 69 and controlled by an overcentre tension spring 34. Under overload a series solenoid 52 is energized to drive a core 51 downwards rotating a cam 55 until its surface 58 strikes a pin 36 on lever 30 driving the mechanism overcentre and separating the contacts 12, 14. The pin 36 is latched in the fully open position by a latch 62. Since the solenoid is now de-energized the core 51 returns under the action of spring 34 which passes overcentre. As the core approaches its end position (Fig. 1, not shown) the end 65 of a lever 40 of the overcentre mechanism releases the latch 62 allowing the contacts to close rapidly. If the fault persists the action is repeated. The motion of core 51 is delayed by constricting an outlet 80 for the oil 81 behind the core. In the closed position contact rod 11 lies in a U-shaped magnetic member 71 by which is produced a magnetic force tending to hold the contacts closed.
Patent GB-1175378-A (GB)
Title: Flexible Paving Strip.
IPC: E01C5/12
Filed: 1967-02-13
Abstract: 1,175,378. Laminates. LIMEHOUSE PAPER MILLS Ltd., L. HOAD, S. C. CRONAN, and R. H. NELSON. 13 Feb., 1967, No. 6687/67. Addition to 1,015,746. Heading B5N. [Also in Division B2] The Specification describes the same paving strip as Specification 1,015,746, but wherein the binder comprises a bituminous material other than coal tar. The petroleum binder may be a straight-run, a cut-back, a blown or a coloured bitumen or asphalt, e.g. Lake Asphalt mixed with a diluent. A release agent comprising a detergent with or without soap may be incorporated in the strip to lessen the adhesion between the binder and the undercover. A release agent may also be applied to the undercover by screeding, rolling or spraying before the bitumen impregnated backing is applied thereto.
Patent GB-431656-A (GB)
Title: Improvements in or relating to dressings, bandages and the like
IPC: A61L15/46
Filed: 1934-03-02
Abstract: Germicidal dressings, mull tissues, bandages, and the like are manufactured from fibrous materials such as cotton wool, wadding, or cellulose by impregnating them with compounds or products containing oxides of silver and manganese.  Silver permanganate may be reduced or aqueous permanganate solutions reacted with silver or substances containing the same such as silver alloys.  A product of the composition Ag2O.  2MnO2 is particularly efficient.  The fibrous material may be impregnated with a solution containing silver nitrate and alkali permanganate, with reducing agents, if desired. Alternatively, the material is treated with a silver salt solution either before, after, or simultaneously with a reducing agent such as sugar, sulphites, formaldehyde, or sulphur dioxide.  The two last may be employed as vapours or gases.  The reduction may, however, be brought about by the action of cellulosic fibrous material.  The product is then treated with permanganate solution.  According to examples: (1) cotton wool or wadding is soaked in ammoniacal silver nitrate, then reduced in a solution of hydroquinone, washed, immersed in alkaline potassium permanganate at 50 DEG  C., washed and dried; (2) cotton wool or wadding is immersed in a solution containing silver nitrate, ammonia, and potassium permanganate, and the product is wrung out, washed, and dried; (3) dressing mull is treated with dextrose solution, dried, immersed in ammoniacal silver nitrate, washed, and treated with permanganate as in (1).
Patent GB-1531394-A (GB)
Title: Semiconductor components
IPC: H01L23/498
Filed: 1977-02-18
Abstract: 1531394 Semi-conductor components SIEMENS AG 18 Feb 1977 [12 March 1976] 06851/77 Heading H1K A semi-conductor body 1, Fig. 1, of a semiconductor component, e.g. a luminescent diode, provided with metal contact layers 5, 6 on its surfaces, is embedded in a support comprising thermoplastic layers 8, 10 and an electrically conducting layer 9 sandwiched therebetween in such a manner that electrical connection between the contact layers 5, 6 and the conducting layer 9 is established. As shown in Fig. 1, an insulating layer 7 covers the intersection of PN junction 2 with the surface of the body which is heated above the softening point of the thermoplastic layers and then pushed into the layer 10 so as to split the conducting layer 9 into parts 11, 12. Similarly, connecting leads 15, 16 are heated and pushed into contact with the parts 11, 12 respectively. In a modification, Fig. 2 (not shown), both the metal contact layers are provided on semi-conductive surfaces parallel to the PN junction, thereby obviating the need for an insulating layer. A method is described for producing a number of said semiconductor components embedded in thermoplastic layers and making electrical contact with the parts of the conducting layer, from a plurality of semi-conductive rods each having a PN junction and an insulating layer, the rods having been sliced from a stack of semiconductive wafers.
Patent GB-678438-A (GB)
Title: Improvements in or relating to wheelbarrows
IPC: B62B1/18
Filed: 1951-03-22
Abstract: 678,438. Hand trucks. EDHARDT, G. E. March 22, 1951 [March 23, 1950], No. 6919/51. Class 108(i) A foldable wheelbarrow for transporting baskets, boxes &c. comprises a wheel 1, Figs. 1, 2, contained in a housing closed at the sides 4, back 5, and top 6, by metal plates, and side frames each constructed of a single piece of steel tubing bent as shown. Portions 7 of these tubes are rotatably mounted in bearings (not shown), in the housing, and may be clamped in position by means of bolts and wing nuts 8. The basket &c. is supported by the horizontal members 9 and the arcuate portions 12, but when the barrow is not in use it may be collapsed to the dotted line position, and hung up by means of a hook 13.
Patent GB-641392-A (GB)
Title: Improved automatic mechanical control unit for conveyors
IPC: B65G47/68
Filed: 1948-03-06
Abstract: 641,392. Locking levers. COLEMAN, R. S. March 6, 1948. No. 6971. '[Class 80(iii)] [Also in Group XXX] Conveyer control apparatus which comprises a frame and two pairs of links pivotally mounted in the frame, each pair of links being operatively associated with a control arm and the two linkages being interconnected in such a way that the movement of either control arm into a position allowing the passage of traffic along a conveyer it controls serves to lock the other control arm in a position obstructing the passage of traffic along a conveyer controlled by the second control arm. As shown in the Figure, the two controlling arms 20, 25 are pivotally mounted at 18 and 24 between two plates 10 and are interconnected by a spring 26. Two levers 13 and 14 forming an integral unit are pivoted at 11 to slue slightly. A link 13c connected with the arm 20 is pivotally connected with a link 13b, fixedly mounted on a pivot 15, and with a link 13a connected to the link 13b and to the end of the lever 13. Similarly, the arm 25 is interconnected by links 14a, 14b, 14c to the lever 14. In operation, when the arm 25 is open and the arm 20 is closed, the pressure of the articles prevents any further movement but when the pressure on the arm 25 ceases it is withdrawn to the closed position by the spring 26. The levers 13 and 14 are slued slightly and the arm 20 is moved to the open position.
Patent GB-606948-A (GB)
Title: Improvements in or relating to magnesium and magnesium base alloy castings
IPC: C22C1/02
Filed: 1946-03-06
Abstract: The grain size of magnesium castings or castings of magnesium base alloys containing at least 70 per cent of magnesium, is refined, and the non-metallic impurity content thereof is reduced, by melting the metal or alloy, introducing at least one halogenated hydrocarbon or a carbon tetrahalide into the melt and thereafter casting the metal alloy.  The preferred halogen is chlorine, e.g. a chlorinated aromatic hydrocarbon may be used, and preferably a fully chlorinated hydrocarbon, e.g. hexachlorobenzene.  Alloys which may be treated include those containing about 3-12 per cent of aluminium with or without zinc, silicon, manganese, tin or lead in smaller proportions than the aluminium.  The alloy may be treated at 1300-1550 DEG F. and it may be treated with a refining salt flux prior to the introduction of the halogenated hydrocarbon.  Best results are obtained by using a halogenated hydrocarbon in amount between 0.01 and 0.3 per cent of the weight of the metal being treated.
Patent GB-622114-A (GB)
Title: Improvements in and relating to boilers
IPC: F24H1/44
Filed: 1947-03-13
Abstract: 622,114. Water-heating stoves. TASKERS of ANDOVER (1932), Ltd., and UNWIN, R. March 13, 1947, No. 7000. [Class 126] [Also in Group XIII] In a slow combustion hot water or steam boiler (see Group XIII), the flow of gases through smoke tubes 24 is controlled by the thermostatically controlled movement of a cone 30, Fig. 3, relatively to a cone 29, or by manual adjustment of a perforated plate 7 operated through a door 8 in a removable conical part 5 of the casing. Plates 25 reflect heat back towards the grate.
Patent GB-541303-A (GB)
Title: Improvements in or relating to dynamo electric machines
IPC: H02K27/02
Filed: 1940-04-18
Abstract: 541,303. Windings for dynamo-electric machines. BRITISH THOMSON-HOUSTON CO., Ltd., and LANE, A. C. April 18, 1940, No. 7005. [Class 35] An A.C. commutator machine having a main duplex winding of pitch other than full pitch and a discharging or equalizing simplex winding of 33<SP>1</SP>/ 3  per cent full pitch wound in the same slots as the main winding and connected to the same segments, a single turn of one section of the duplex winding being connected to segments two apart across which segments two turns of the simplex winding are connected, is characterized by the two simplex turns being displaced symmetrically with regard to the centre of the duplex coil to which they are connected so that the magnitude and direction of the sum of the voltages in the duplex coil and the two simplex turns are the same. Fig. 1 shows in the upper part a duplex winding g, h an average pitch 83.3 per cent in 9 slots A, B, C...K per pole with 2 segments 1, 2, 3...per slot. The simplex winding k shown separately, although actually superimposed on the main winding and connected to the same commutator, has 33<SP>1</SP>/ 3  per cent pitch and is wound offset, i.e. with first one coil to the left and then one to the right of the normal symmetrical position. The voltage vectors of the two sections of the duplex winding (upper part of Fig. 2) 1 z 3 x 5 v 7 and n 2 y 4 w 6 u (u not shown in Fig. 1) show coincidence at the segments I, 3, 5, 7 and the voltage vector given for the simplex winding 1a, 2b, 3c 4...shows that all the points 1, 2, 3, 4...corresponding to the segments coincide with the positions in the duplex winding in the upper vector diagram. The simplex and duplex windings may, therefore, be superimposed in the slots without any circulating currents between them. The duplex evolutes n, y, w ...may be left without equipotential connectors, although such connectors may be used. The application of the simplex winding to a "half turn " winding, i.e. one half only of a full duplex winding, is also described. The simplex winding coils, as shown, may be disposed in the same pole as the duplex winding with which they are associated or in another pole. They may be above the main winding in the slots immediately beneath the wedges or below it, and the two windings may be separated by magnetic or non- magnetic material. Commutator equalizers and resistance connectors of known type may be used in combination with the simplex winding and this winding may be of copper or high resistance material. Specifications 518,047 and 530,874 are referred to.