baber/WOPTO huggingface dataset:
Patent GB-497747-A (GB)
Title: Improvements in heavy alloys
IPC: C22C27/04
Filed: 1937-06-24
Abstract: An alloy having a density not less than 16 comprises not less than 83 per cent of tungsten, not less than 0,5 per cent of copper, and not less than 3,5 per cent of nickel, and consists of relatively large grains of tungsten cemented together by a nickel-copper-tungsten alloy.  A specific example consists of 91 per cent of tungsten, 2,6 per cent of copper, and 6,4 per cent of nickel.  The alloy consisting of 90 per cent of tungsten, 5 per cent of copper, and 5 per cent of nickel described in Specification 447,567 is excluded from the invention.  The alloy may be made by heating a mixture of the powders to not over 1450 DEG  C.
Patent GB-292999-A (GB)
Title: Arrangement of core segments in the casings of dynamo electric machines, rotary transformers and the like
IPC: H02K1/18
Filed: 1928-06-19
Abstract: 292,999. Siemens - Schueltertwerke Akt.-Ges., (Assignees of Siemens-Schuckertwerke Ges.). June 29, 1927, [Convention date]. Cores.-The core segments are arranged with a certain amount of tangential play to allow for ex. pansion. In the arrangement shown the segments b are mounted on T-shaped cross-pieces t', t<2>, t<3>. The segments are secured rigidly at the middle on the cross-pieces t<2>and play on -the cross pieces t<1>, t<3> at the ends. The segments are arranged in packs p overlapping as shown.
Patent GB-613160-A (GB)
Title: Water admission device for installations converting the energy of sea waves
IPC: F03B13/22
Filed: 1946-06-13
Abstract: 613,160. Utilizing wave energy. ATELIERS NEYRET-BEYLIER & PICCARD-PICTET. June 13, 1946, No. 17757. Convention date, June 20, 1945. [Class 69 (i)] In an installation for obtaining energy from sea waves, there is provided at least one convergent channel having a non-return valve gate at the landward end. The valve gate comprises one or two vertical flexible flaps 10 extending from top to bottom of the opening and mounted in supports 9, the supports being secured to the sides 7, 8 of the openings by wedges 12. Each support has two projecting abutments 14, 15 which limit the open and closed positions of each flap; struts 19 bridging the opening also determine the closed position. The flaps have differing degrees of flexibility. The inner lip of each flap is formed of soft rubber and may have vertical grooves to ensure effective sealing. In the closed position, the lower end of each flap is pressed by the impounded water against the vertical face of a sill and if necessary, may be permanently wedged against the sill.
Patent GB-1165211-A (GB)
Title: Ventilating Appliance including a Centrifugal Fan
Inventor: WOODS ROBERT IAN
IPC: F04D29/66
Filed: 1966-04-22
Abstract: 1,165,211. Ventilating. SOUND ATTENUATORS Ltd. 24 July, 1967 [22 April, 1966], No. 17843/66. Heading F4V. [Also in Division F1] In a ventilator the scroll chamber of a centrifugal fan is defined by the interior surface of a hollow slab of expanded plastics material, e.g. expanded polyurethane, to reduce the noise made by the fan or carried by air reaching the fan. The slab comprises a central portion 11, Fig. 1, and two side walls (12, 13), Fig. 2 (not shown). One or more sound-damping baffles 39 are also provided, each baffle comprising a sheet metal core covered with expanded plastic material. The ventilator is secured to the wall of a room, with its inlet communicating with a passage through the wall. Air is blown by the fan through passage 15, pipe bend 35, washable fabric filter bag 36 and an outlet grid in the top or front wall of a plastics sheet-metal outer casing 38. An electric heater may be arranged in the pipe bend. The compartment containing the filter bag may be lined with sound-damping material.
Patent GB-1384784-A (GB)
Title: Laminates
IPC: B44C5/04
Filed: 1972-04-18
Abstract: 1384784 Laminates PPG INDUSTRIES Inc 18 April 1972 [20 April 1971] 17857/72 Heading B5N A method of making a decorative composite article comprising a substrate section, an intermediate decorative layer and a polyester resin protective layer comprises either: (1) placing an adhesive impregnated or coated decorative sheet on a substrate section, applying a polyester resin composition comprising an unsaturated polyester, an ethylenically unsaturated monomer, a peroxide catalyst and a photosensitizer to a release material and subjecting the polyester resin composition to actinic light to gel the composition without curing; placing the gelled polyester resin composition backed with release material on the decorative sheet; apply sufficient heat and pressure to cure the polyester resin and bond the layers into a unitary composite structure, and removing the release material or (2) applying a polyester resin composition as defined above to an adhesive impregnated or coated decorative sheet and subjecting the polyester resin composition to actinic light to gel the composition without curing; placing the coated decorative sheet on a substrate section; placing a release material on the gelled polyester resin composition; applying sufficient heat and pressure to cure the polyester resin and bond the layers into a unitary composite structure, and removing the release material. The substrate material may be particle board, wood, plywood, fibreboard or gypsum board and the decorative sheet material paper, felt, glass, asbestos, cotton, linen or rayon cloth or a vinyl sheet. The release material may be aluminium foil, tin foil, tin plate, parchment paper or non-adherent paper. The adhesive is preferably a heat-cross-linkable polymer reactive the unsaturated polyester resin to form a bond thereto, e.g. a diallyl phthalate prepolymer an unsaturated polyester or a polyacrylic resin. The unsaturated polyester resin is preferably formed from an ethylenically unsaturated polycarboxylic acid, a polyhydric alcohol and optionally a saturated or aromatic dicarboxylic acid, many such reactants, suitable ethylenically unsaturated monomers, peroxide catalyst and gelation inhibitors which may be included in the polyester resin composition being specified. The photosensitizer may be benzium, benzium methyl ether, benzophenone, benzoin isopropyl ether, benzoin butyl ether or benzoin amyl ether. Fillers and dyes may be included in the polyester resin composition. Formation of the unitary composite article may be effected in a press. An article with two decorative surfaces may be produced either by repetition of the above procedure orby the assembly of the components required prior to the application of heat and pressure.
Patent GB-331073-A (GB)
Title: Improvements in or relating to bead setting apparatus for tyre building machines
IPC: B29D30/32
Filed: 1929-06-11
Abstract: 331,073. Dunlop Rubber Co., Ltd., Willshaw, H., and Norcross, T. June 11,1929. Tyres, elastic, special apparatus for making.-Bead-setting apparatus for use in a tyre-building machine comprises a fixed bead-carrier ring 9 and a movable ring 8 arranged on opposite sides of a drum 6, means being provided for first moving the ring 8 up to the drum and then moving both those parts up to the ring 9. The ring 8 is carried on a shaft 1 capable of axial and rotary movements, the drumcentre 7 being keyed to a sleeve 5 within which the shaft 1 can slide but not turn. A spring 10 may be fitted between the drum and one or both of the rings 8, 9.
Patent GB-1309044-A (GB)
Title: Method of preventing wheel-slip
IPC: B61C15/12
Filed: 1971-05-28
Abstract: 1309044 Preventing wheel-slip MOTORENUND TURBINEN - UNION FRIEDRICHSHAFEN GmbH 28 May 1971 [5 June 1970] 17900/71 Heading B7H [Also in Division F2] A vehicle, such as a remote controlled railway vehicle, having a diesel engine 11 driving a hydrodynamic transmission 13 comprising shaft controlling means 23 acting on a filling and emptying valve 25 has means to reduce or prevents wheel-slip during acceleration. A sensor 26 responds to faster acceleration occurring during wheel slip and provides a signal in a line 27 which acts by a valve 29 to shut-off the supply line 22 from a pressure source 21 for controlling means 23 to prevent further influence on the valve 25 so that the engaged gear is held engaged. At the same time a magnet 30 acts to adjust the filling and emptying crosssections to reduce the pressure and thus the torque transmitted. Also the signal causes a shut-off valve 28 to reduce the pressure of an engine air control line 19 to that required for the engine to idle while a magnet 31 reduces the power stage engaged one stage. On cessation of slip the effect of the sensor signal ceases except that the lower speed stage remains engaged.
Patent GB-170630-A (GB)
Title: Improvements in and relating to devices for locking cycles, automobiles and the likewhile standing
IPC: B62H5/06
Filed: 1920-06-30
Abstract: 170,630. Furness, J. A., and Richardson, W. L. June 30, 1920. Guarding against unauthorized use.-Means for locking the steering-column of a motor vehicle, cycle, &c., comprise a collar formed integral with, or secured to, the steering-column casing, and a locking-member carried by the collar adapted to be advanced to engage a hole in the steering-column and to be locked in this position by means of a padlock. As shown in Fig. 3, the collar comprises two parts 4. 11, clipped to the steering-column casing 3 by bolts 10, 10a. The locking-member 6 may be screwed in until it enters a hole 7 in the steering-column, whereupon a hasp 16 pivoted on the collar may be brought over the head of the member, preventing its withdrawal. The hasp is secured in this position by passing the staple of a padlock through a hole 12 in the head of the locking- member. The complete withdrawal of the locking-member when freed mav be prevented by the provision of a set-screw 14. In one modification, the staple of the padlock is passed through the head of the locking-member and through a hole in a web on the hasp; in another mod.ification, the hasp is adapted to be engaged by the bolt of a lock integral with the collar.
Patent GB-569713-A (GB)
Title: Improvements in or relating to centrifugal machines
IPC: B04B13/00
Filed: 1943-10-30
Abstract: 569,713. Bearings. WATSON, LAIDLAW & CO., Ltd., and INGLES, W. L. B. Oct. 30, 1943, Nos. 17961, 17962 and 21871. [Class 12 (i)] [Also in Group II] In a machine having a gyratory basket 4 supported on a spindle 5, with the bottom journal 8, free from its bearing 9 during high-speed operation of the basket, fluidoperated means are used to raise the bearing 9 into the position shown in Fig. 1, before a ploughing operation is commenced upon the sugar deposited on the basket wall. Fluid under pressure also moves the plough blade 22 to or from operating position and causes the downward travel of its shaft 21. The driving motor is prevented from high-speed operation during ploughing through an extension of a shaft 10<1> engaging an electrical switch. Other interlocking means may be used. Instead of the bearing 9 being used, segmental bearings pads may be thrust in horizontally to surround and support the journal 8. On completion of ploughing, the pressure fluid supply to the underside of a plunger 10 is cut off, and the plunger is allowed to descend by gravity, or pressure means may be used. The fluid is preferably compressed air, but liquid or steam may be used. The tip 22 of the plough blade may be hinged to the blade body being controlled by links -as shown in Fig. 9. Integral with the plough blade is an upper deflecting plate 61 to assist the discharge of the sugar downwards towards the basket opening. A toothed scarifier heel 64 enters the sugar wall causing the blade tip 22<1> to cut into the wall. The heel breaks the surface of the sugar and assists ploughing. A sheetmetal hood 15, is arranged over the bearing 9 to protect it from contact of sugar discharged from the basket 4. Fig. 7 shows a fluid-pressure cylinder 28, for moving the plough-blade 22 by links 34, 36, 38, 39. A guide finger 40, Fig. 8, projecting from the lower end 23 of the bearing bracket for the plough shaft, guides the plough blade to its starting position for ploughing. The blade 22 is locked in safety position by a link 41 projecting from the plough shaft 21, engaging in a detent 42 on the guide finger 40. Fig. 13 shows the piping arrangement for supplying the cylinder for the bearing 9, by pipes 14, 13 ; the cylinder 28, for positioning the plough blade ; and the cylinder 25 for moving the plough shaft 21 vertically. A piston valve 44 cross-connects pipe 29 and 13 when pressure fluid in pipe 48 forces down the valve. A magnetic valve may be incorporated in the compressed air pipe 13. This is closed normally, but when the speed of the basket drops, a centrifugal switch closes and energizes the valve causing it to open and allow air to pass to the cylinder 11. The first Provisional Specification refers to Specification 569,485, [Group II]. A water-tight switch is incorporated with the plough to ensure that the driving motor does not start until the plough blade is in safe position.
Patent GB-477447-A (GB)
Title: Improvement in soluble chlorine containing butadiene derivatives
IPC: C08C19/16
Filed: 1936-06-29
Abstract: Amorphous rubber hydrochlorides are produced by treating undissolved rubber with liquid or gaseous hydrogen chloride at temperatures below -35 DEG  C.  The products may be dissolved in benzol, toluene, chloroform, carbon tetrachloride or ethylene dichloride to form coating or film-forming compositions. Plasticizers such as chlorinated paraffin, diphenyl ether, butyl stearate, and amyl benzene, also paraffin, rosin, chlorinated diphenyls and ethers thereof, antioxidants such as phenyl-b -naphtylamine, diphenyl-amine, o-and p-ditolylamines and rubber accelerators such as hexamethylene tetramine may be added to the solutions, which may be used for coating and impregnating wood, metal fabric or paper, or for making films which may be used for wrappings or for photographic film base. New compounds may be formed by reacting the amorphous rubber hydrochlorides with cyanides, with sulphur chloride, or by hydrolysis.  Specification 446,818 is referred to.  The Specification as open to inspection under Sect. 91 also comprises reacting rubber with hydrogen chloride at temperatures above -35 DEG  C.  This subject-matter does not appear in the Specification as accepted.
Patent GB-270525-A (GB)
Title: Improvements in and relating to multifocal lenses
IPC: G02C7/06
Filed: 1926-07-19
Abstract: 270,525. Redfern, C. G., (American Optical Co.). July 19, 1926. Spectacle lenses.-Multiple spectacle lenses are constructed so that two fields are provided at an angle to each other on the main lens and the third field is comprised of an insert of different refractive index arranged to have the same optical axis as one of the other fields. The centre of curvature of the distance portion and the effective equivalent centre of curvature of the reading portion are so related to each other that there is no sudden deviation of the visual axis in passing from one portion to the other of the lens. A blank 1 of refractive index 1.523 is moulded to the curvature 2 and the countersink 3 is ground out and polished to the curvature 4 with the centre 5 on the line 6-6, after which the portion 15 of refractive index 1.616 is inserted. The whole of the inner surface is then finished to the curvature 2 about the centre 7 on the line 6-6. A point 10 is then determined on the line 6-6 at a distance from the point 9 equal to the equivalent radius of the addition for the reading field, and the upper portion of the lens is ground and polished to the same curvature 13 as the original curvature 2 from a centre 12 on the line joining the points 10, 9. This prevents jump of the image in passing from the distance to the reading field. The opposite side of the lens is then ground to curve 16 to give the prescriptive power of the lens.
Patent GB-562275-A (GB)
Title: Electro-magnetic switches
IPC: H01H1/00
Filed: 1942-12-21
Abstract: 562,275. Electromagnetic switches. HINKS, B. Dec. 21, 1942, Nos. 18085/42 and 11757/43. [Class 38 (v)] Subsidiary contacts such as 44, 46 cease to function in their normal manner when the main contacts 11, 4a of an electromagnetic switch become unduly worn. The electromagnetic switch has two core portions 35, 12 which move together against the respective actions of springs 38, 7, when the magnet is energized, the lower core 12 carrying a bridging contact 11 which engages the pivoted " fixed " contacts 4a, biassed by the springs 7, and the upper core operating a lever 41 which operates the auxiliary contacts 44, 46. In the form shown, when the magnet is energized, the contacts 44, 46 close a maintaining circuit for the magnet, but should the main contacts become worn, the final position of the core, after the two parts 35, 12 have come together, will be slightly different and the contacts 44, 46 will not close. Alternatively, Fig. 3 (not shown), the auxiliary contacts may be arranged normally to open an auxiliary circuit when the magnet is energized. In this case, when the main contacts are worn, this auxiliary circuit remains closed and a bimetal strip 30 is heated which after a time interval breaks the circuit of the electromagnet. Specification 560,871 is referred to.
Patent GB-717793-A (GB)
Title: Improvements in or relating to measuring devices, particularly for ultrasonic resonance testing
IPC: G01N29/34
Filed: 1952-07-17
Abstract: 717,793. Valve generating circuits. SPERRY PRODUCTS, Inc. July 17, 1952 [July 27, 1951], No. 18096/52. Class 40 (6). [Also in Group XXXVIII] Relates to the method of determining the thickness of a solid 10 in which an electro-mechanical transducer 11 in contact therewith is energized by a frequency-modulated oscillator, the resonance frequency of the system being dependent on the thickness. In such a method, the resonance may be indicated by the accompanying sharp decrease in the amplitude of the oscillations and according to the present invention this effect is accentuated by using a cathode-coupled oscillator T1, T2 having a tank circuit L1, C2, a feed-back condenser C1 between the anode of Tl and grid of T2 and a condenser C4 in series with a germanium or thermionic diode T3 connected in parallel with the grid leak R2 of T2. In the non-resonant condition a substantially constant negative self bias is developed across R2 which decreases slightly, S, Fig. 2B, at resonance but when the frequency passes through resonance, the negative self bias begins to increase and T3 becomes momentarily conductive thereby sharply reducing both the feedback and the bias, the resultant accentuated change S1 in the bias being amplified and displayed on a suitable indicator.
Patent GB-1282483-A (GB)
Title: Improvements in or relating to toggle devices for fixing two components of an article together
Inventor: EASTHAM ROWLAND JAMES
IPC: F16B5/06
Filed: 1969-04-09
Abstract: 1282483 Toggles THOMAS EASTHAM & SON Ltd 26 June 1970 [9 April 1969] 18114/69 Heading E2B A toggle device for fixing two components of an article together, such as an article of furniture, comprises a metal rail 10 which has side flanges 15, each having an end 14 of a 'U'-shaped member 12 pivotally mounted therein and being provided with a tongue 15a and a member 11 which has a metal channel plate 17 secured thereto by screws or rivets 18 so as to have each end of a 'U'-shaped member 13 pivotally mounted therein, and which has apertures 20 therein. To fasten the rail 10 and the member 11 together, the member 13, having a cranked portion 19 engages the member 12 as shown in Fig. 2 and the tongues 15a of the flanges 15 are located in the apertures 20 of the member 11. The members 12, 13 are then moved to the position to effect a toggle action and thus hold the rail 10 and member 11 together. In another embodiment as shown in Fig. 5 a member having side flanges is attached by screws 21a to a member 10. The side flanges 21 each have a tongue at one end thereof and a notch at the other end. A channel plate 17 is secured to a member 11 and receives ends 16 of a 'U'- shaped member 13 therein. A member 12 is pivotally attached to the member 13 and, when the fastening together of the members 10 and 11 is required, the member 12 is located in the notches in the flanges 21 and the tongues are located in slots in the channel plate 17. The members 12 and 13 are then moved to a position to produce the toggle fastening effect.
Patent GB-770195-A (GB)
Title: Improvements in or relating to aluminium base alloys
IPC: C22C21/10
Filed: 1954-06-21
Abstract: An aluminium-base alloy combining high strength with resistance to stress-corrosion has a composition within the following range: Zn 6.2-7.8 per cent, Cu 1.8-2.6 per cent, Mg 2.4-3.0 per cent, Cr 0.1-0.4 per cent, Al with impurities and grain refining elements forming the balance.  The grain refining elements may be Ti, Mn, Zr, Be, B, Mo, W, V, Co and Ni.  Si should be less than 0.3 per cent and Fe less than 0.4 per cent.  In a modification the maximum Zn content may be 8.2 per cent the maximum Mg content 3.4 per cent and the minimum Cu content is then equal to the Mg content plus one fifth of the Zn minus 2.4.  The Specification refers to the heat treatment of extruded sections of the alloy by heating to 870 DEG F., quenching in cold water and ageing at 250 DEG F. for 24 hours.  Specification 544,439 is referred to.
Patent GB-870206-A (GB)
Title: Improved method of joining two ends of textile yarn or the like together
Inventor: NORTON JOHN
IPC: B65H69/04
Filed: 1957-06-07
Abstract: 870,206. Knots. LEESONA HOLT Ltd. Dec. 16, 1957 [June 7, 1957; Dec. 12, 1957], Nos. 18137/57 and 38583/57. Class 112 In a knot joining two ends of yarn, each yarn forms a closed loop around the other yarn and its tail is located between the two loops, while the knot when produced does not exceed three diameters of yarn in transverse section. In Fig. 6 yarn A makes a loop C around yarn B, the latter makes a loop E around yarn A, and the respective tails D and E lie between said loops and project in opposite directions. In Fig. 9, yarn A<SP>1</SP> makes two loops C<SP>1</SP>, C<SP>*</SP> around yarn B <SP>1</SP>, the latter makes a single loop E <SP>1</SP> around yarn A and the tails F <SP>1</SP>, D <SP>1</SP> project in opposite directions. In Fig. 12 the yarns A<SP>2</SP>, B<SP>2</SP> make respective loops C<SP>2</SP>, E<SP>2</SP>, and the respective tails D<SP>2</SP>, F<SP>2</SP> project in the same direction and cross one another.
Patent GB-1473219-A (GB)
Title: Emission control unit
IPC: F01N3/28
Filed: 1974-04-25
Abstract: 1473219 Exhaust gas converter DEUTSCHE GOLD UND SILBER SCHEINDEANSTALT 25 April 1974 [20 June 1973] 18141/74 Heading B1F An emission control unit with a vibrationfree monolith catalyst mounting consists of catalyst monolith, 5 held by an elastic mass 4 which bears under pressure against the housing wall, the housing 1 tapering at an angle of 2 to 6‹. Mass 4 may be fibrous aluminium silicate.