baber/WOPTO huggingface dataset:
Patent GB-1069743-A (GB)
Title: Friction welding
IPC: B23K20/12
Filed: 1964-07-10
Abstract: 1,069,743. Welding by pressure. AMERICAN MACHINE & FOUNDRY CO. July 10, 1964 [July 10, 1963], No. 28561/64. Heading B3R. A friction welded assembly comprises titanium, titanium alloy or titanium and titanium alloy components. The tubular workpiece (10) Fig. 1 (not shown), is mounted in a stationary chuck (11) on a frame (12) movable by hydraulic cylinders (17) and the tubular workpiece (13) is mounted in a chuck (14) fixed to a shaft (15) rotatably by a motor (20) through a clutch (21). In a modified apparatus to weld rod workpieces a flywheel is fixed to the shaft extending from the rotatable chuck. The energy required for welding is 2500-25,000 foot pounds per square inch of weld area. In the first apparatus about 5,500 foot pounds of energy per square inch of weld area is required, workpiece (13) being rotated at 3600 r.p.m., the workpieces being held together at a pressure of 100-1500 pounds per square inch for 1-10 seconds and with the clutch disengaged and a brake applied to the shaft (15) a forging pressure of 10,000 p.s.i. is applied. A relative average surface speed of at least 2 feet per sec. is required. With the modified apparatus the rotatable chuck and flywheel are rotated at 3600 r.p.m. and the clutch disengaged, the workpieces are forced together with a pressure of 10,000 to 20,000 p.s.i. The pressure may vary from 5000 to 40,000 p.s.i.
Patent GB-1380549-A (GB)
Title: Hydraulic operating system for a bucket-wheel excavator
IPC: E02F3/26
Filed: 1973-06-15
Abstract: 1380549 Bucket wheel excavators O & K ORENSTEIN & KOPPEL AG 15 June 1973 [16 June 1972] 28603/73 Heading E1F A hydraulic operating system, for a mobile bucket excavator having a hydraulic motor 20 for driving a bucket wheel (7), Fig. 1 (not shown) carried by a jib (8) which may be swivelled about a vertical axis by a hydraulic motor 40, comprises respective digging and swivelling control means 23 and 44 for controlling the supply of pressure fluid from a first source, such as twin pumps 21, 22 and a second source, such as pump 42, to the motors 20 and 40, and first and second control means responsive to the resistance encountered by the buckets for automatically reducing the rate of fluid supply to the motors 20 and 40 respectively. The output of the twin pumps 21, 22 is limited by control devices 32, 33 in response to the fluid pressure in the supply lines to the motor 20. The pump 42 is controlled by a device 43 responsive to the pressure difference between lines 48a, 48b supplied from a source 54 through line 45 and swivel control means 44; the pressure in the line 45 is limited by control means 48, again responsive to the pressure in line 29c feeding the motor 20. The twin pumps 21, 22 include respective pumps 21a, 22a feeding the motor 20 directly and pumps 21b, 22b feeding it through slide valves 28a, 28b which may be set to divert fluid to hydraulic motors 30a, 30b to propel the excavator. The lines 48a, 48b may be vented by valves 53a, 53b controlled by limit switches operated by a cam disc on the jib (8) to prevent the jib colliding with discharge conveyor arm (14).
Patent GB-486392-A (GB)
Title: Improvements in or relating to machines for moulding plastic masses under pressure and by a continuous process
IPC: B30B11/10
Filed: 1937-10-22
Abstract: 486,392. Mould opening and closing apparatus. TEDESCHI, E., and SEGRE, M. Oct. 22, 1937, No. 28915. [Class 87 (ii)] Relates to machines for moulding thermoplastic materials in which the material is maintained under pressure in the mould until it has cooled or consolidated, and consists in means for removing and applying self-retaining pressure-producing covers to moulds that form part of the machine. As shown, moulds having screw covers are arranged in a circle in a work table 1. The covers are rotated to open or close the moulds by a rotating member 4 adapted to be lowered by a hand lever 5 into contact with a cover. The member 4 is mounted in a hollow member 2 rotatable about the centre of the mould circle. The member 4 may be driven by reversible gearing or by a handle 13. In some cases, more than one coverengaging member 4 may be employed, one being adapted to remove a cover, while another separated angularly by at least one mould space is used to apply a cover. Friction clutches, drive-disengaging mechanism, or electromagnetic devices may be interposed between the driving-mechanism and the cover to limit the maximum torque applied to the cover. and hence, the maximum pressure applied to the material in the mould.
Patent GB-488462-A (GB)
Title: Improvements in and relating to carburetters for internal combustion engines
IPC: F02M9/06
Filed: 1937-10-22
Abstract: 488,462. Spray carburetters. BROKEL, 0., and REINCKE, R. M. Oct. 22, 1937, No. 28943. Convention date, Oct. 22, 1936. Addi. tion to 435,158. [Class 7 (iii)] The carburetter claimed in the parent Specification is modified by replacing the bevelled rib on the capillary or filter body holder 24 by a conical projection and by providing a space 3 above an exchangeable perforated disc 4 bearing against the filter body 2. To vary the face of the filter body 2 exposed to the suction in the mixing-chamber, the disc is exchangeable with other discs having a different number of perforations. A flap valve 11 which partly closes the air inlet 12 is prevented from fluttering by a spring 14 and is opened by suction against the action of a spring 13. The fuel passes through a filter 20 before being admitted, past an electromagnetically controlled valve 21, into the chamber 18 containing the filter body 2, and is delivered into the mixing- chamber through radiating passages 10 above a constriction 8 controlled by a conical needle 9 carried by a piston valve 16.
Patent GB-290057-A (GB)
Abstract: 290,057. Ure, G. A. June 23, 1927. Dampers.-The door B of a domestic or like stove has a cam portion A which engages a lever or crank arm C connected to the outlet flue damper G, which is thus opened on opening the door. In the stove shown two sliding doors B are provided, each of which operates the damper. The damper may be manually operated, when the doors are shut, by means of a rod H carrying an arm E connected by a link F to one of the lever or crank arms C. The invention may be adapted to stoves having hinged doors.
Patent GB-630825-A (GB)
Title: Improvements in eddy current torque apparatus
IPC: H02K49/04
Filed: 1947-10-31
Abstract: 630,825. Automatic resistance control. WINTHER, M. P. Oct. 31, 1947, No. 29072. Convention date, Jan. 13. [Classes 35 and 38 (iv)] [Also in Group XXXIV] An eddy current brake or coupling is arranged so that the current in the field coil producing the flux field interlinking the driving and driven or braked members is varied by a resistor responsive to the deflections of a resilient member itself responsive to variations of torque between the driving and driven members, this arrangement acting to keep the average torque transmitted, or the braking effect, at a substantially constant value. The apparatus, as shown in Figs. 1 and 3, comprises a stationary field member 1 concentric with an inner rotating inductor member 3. The field member 1 consists of annular rings 11 and 13 having interleaving axially-directed teeth 17 and 19 respectively which become alternate North and South poles when current passes through an annular coil 15 enclosed by the members 11 and 13 within a fixed ring 5. The inductor member 3 comprises segmental elements 25 secured by normally radial resilient members 33 to discs 29 and 31 fixed to the hub 27. The discs 29 and 31 also carry a resistor 43, as shown, of the carbon disc pile type, the actuator knob 47 of which rests in contact with one of the resilient members 33b. The circuit for the arrangement, when used as a brake, is shown in Fig. 4. The resistor 43 is placed in series with current to the coil 15 from supply 57 by means of slip-rings 61, 63. When the inductor member is rotated anti-clockwise, as shown in Fig. 3, the magnetic drag on the segments 25a tends to flex it with respect to the discs 29 and 31, as shown exaggerated in Fig. 3, so that the pressure on the carbon discs in the resistor 43 is reduced, the resistance thus increases and the current is reduced in coil 15. This in turn reduces the inductive drag on the elements 25 so the members 33 tend to straighten and increase once more the compression on the actuating knob 47. An equilibrium condition is thus established so that a substantially constant braking torque obtains, this torque being independent of the speed of the inductor member above a certain minimum. The equilibrium torque may be varied by adjusting a knurled screw-cap 52 to vary the compression of resistor 43. The operation is similar when applied to a slip coupling, the torque again reaching a substantially constant value that is independent of the difference in speed between the driving and driven members. In the circuit in this case, a second set of slip-rings is required for supplying current to the field member 1 now rotatable. It is stated that in the brake arrangement, the field member 1 may be rotatable and the inductor unit 3 fixed. Any suitable form of resistor 43 may be used.
Patent GB-1538316-A (GB)
Title: Optical fibre test equipment and method
IPC: G01S17/18
Filed: 1976-07-13
Abstract: In this method, echo detection is used to determine the position of fractures in optical fibres (7). A pulse generator (1) delivers two pulse trains via its two outputs. The first train triggers the supply of a laser (3), while the second pulse train, which is transmitted with an adjustable delay with respect to the first pulse train, distributes output signals from a photodetector (10) onto "distance ranges", in order to be able to determine the position of the fracture. <IMAGE>
Patent GB-504464-A (GB)
Title: Improvements in or relating to compound sheet material for buildings and other purposes
IPC: F41H5/04
Filed: 1937-10-25
Abstract: 504,464. Compound building- slabs. LANGWORTHY, C. F. Oct. 25, 1937, No. 29125. [Class 87 (i)] [Also in Group VIII] Compound sheet material for building &c. comprises a number of felted sheets of asbestoscement having therebetween one or more reinforcing sheets of expanded metal, wire netting or gauze, and is faced on each side with sheet metal, expanded metal, wire netting or gauze. The reinforcing sheets may be coated with bitumen or non-corrosive paint, and the outer sheets may be zinc-coated, e.g. galvanized iron or steel: A metal sheet with keying projections on its upper side is laid on a support, a number of freshly-formed asbestos-cement sheets are superimposed thereon with expanded metal, wire netting or gauze between any or all of them, a metal sheet is placed on top with keying projections on its lower side, and the layers are united by pressure.
Patent GB-741355-A (GB)
Title: Improvements in or relating to loaded waveguides
Inventor: MULLET LESLIE BADEN
IPC: H01P3/12
Filed: 1951-12-13
Abstract: 741,355. Particle accelerators; electronoscillators. UNITED KINGDOM ATOMIC ENERGY AUTHORITY. Dec. 11, 1952 [Dec. 13, 1951], No. 29167/51. Class 39(1). [Also in Group XL (b)] Apparatus for the acceleration of electrons or protons comprises a wave-guide which is dimensioned to be below cut-off for the H 01  mode at the operating frequency and which is capacitively loaded whereby the phase velocity is negative in relation to the group velocity. The loading may consist of slats 2 the spaces between which may be wholly or partly filled with dielectric. Holes 3 provided for projection of the particles may be covered with grids to eliminate de-focusing. The depth of the slats tends to zero as the loaded guide wavelength is reduced to a value much less than the air wavelength. Hence the slats may be replaced by a slotted plate with a semicircular ridge along the centre of each face, these ridges providing capacitative loading for the slots. Another method of rendering the slots capacitative is to make them longer than half a wavelength (in air) by inclining them as shown in Fig. 12 or shaping them as shown in Figs. 13 and 14. In the modification of Fig. 13 the direction of the electric field (indicated by arrows) is such that a transverse focusing field is exerted. The length of the slots may be made longer than the width of the guide by longitudinally corrugating the plate. The plate may be replaced by a series of spaced parallel wires corrugated in the transverse plane of the guide. Such a construction is stated to be applicable to microwave oscillators. Fig. 15 shows a linear accelerator comprising two lengths of waveguide 4, 7 in one of which the energy velocity E is in the same direction as the phase velocity P whilst in the other (constructed e.g. in accordance with Fig. 11) the velocities E and P are in opposite directions. The two lengths 4, 7 are coupled and have an input 5 and outputs 6, 8. They have identical performance characteristics. If a beam of particles is injected as indicated by the arrow 9 the effect of any phase error due to frequency variation in the section 7 will be compensated in the section 4. Specification 706,367, [Group XL (b)], is referred to.
Patent GB-829466-A (GB)
Title: Method and apparatus for bending and cutting glass sheets
IPC: C03B33/04
Filed: 1957-09-17
Abstract: 829,466. Shaping and cutting glass sheets. LIBBEY-OWENS-FORD GLASS CO. Sept. 17, 1957 [Sept. 19, 1956], No. 29191/57. Class 56. To produce a pattern cut bent glass sheet, a blank size glass sheet is heated and bent into conformity with the shaping surface of a mould, marked while still in contact with the shaping surface to reference the sheet with respect thereto and the predetermined path of travel of a glass scoring tool then orientated with respect to the marked portion to position the path of travel with respect to the shaped surface and the glass scoring tool moved in contact with the glass sheet to score the sheet to pattern outline. The glass sheet is differentially cooled to form compression stress in a sheet portion corresponding to the marginal edge area of the required pattern, the scoring tool passing through the stress area. The bending mould 17 comprises a central section 18 and rectangular end sections 19 pivoted together on hinges 21 and forming the shaping surface 20. The mould 17 is supported on a base 22 by transverse rods 23 on end sections 19 secured to links 24 swinging on pins 25 fixed on posts 26. A heat absorbing member to retard the cooling of the central areas c of the glass sheet comprises a metal shield 30 on a rail 29 supported on posts 31 carried by rods 32 fixed to the sections 18, 19, the shield 30 being in sections to move therewith. The marginal areas a of the sheet will also be retarded in cooling by the shaping surface 20, leaving an area b under compression stress. For marking the glass sheets 27, each end section 19 carries a tubular member 33 supported by a post 34 on the rod 23 and passing through the shield 30 to lie substantially normal to the sheets 27 after bending. The two sheets 27 laid on the opened mould 17 are passed through the bending furnace and the furnace annealing section and are then, at the unloading position, marked by operators at each side using a handled tool passing through the guide tube 33 and having a pad of rubber with a cross inked to give a mark f. The two sheets 27 are then secured together by spots of adhesive e and removed to the cutting machine, Fig. 6, which comprises a template 42 in the form of a rail on which the scoring tool 44 runs, supports 43 for the glass 27 and aligning bars 49 each having a pointer 50 to be aligned with a mark f. The tool 44 is supported on rollers 46 so that the wheel 48 is always positioned normal to the glass and the wheel 48 is moved towards and away from the glass by air-actuated mechanism in a cylinder 47. The cutting line d is arranged so as to be centrally of the compression stress area b. After the top sheet is scored, it is removed and the lower sheet then scored. Specifications 764,448, 764,566 and 773,417 are referred to.
Patent GB-617009-A (GB)
Title: An improved vise
IPC: B23Q11/08
Filed: 1946-10-01
Abstract: 617,009. Vices. KNIGHT, B. D. Oct. 1, 1946, No. 29219. [Class 61 (ii)] Felt &c packings 20 are provided in grooves 21 extending around the opening in the vice body 5 which receives the movable jaw slide 3 to seal the surfaces working in contact againstingress of dirt &c. and the surfaces between the packings may be covered with lubricant. An anvil block 15 may be welded on the body 5.
Patent GB-410406-A (GB)
Title: Improvements in non-skid devices for vehicle wheels and fastening means therefor
IPC: B60C27/06
Filed: 1933-10-23
Abstract: 410,406. Buckles etc.; fastenings. BILLINGHAM, J., Providence Works, Cradley Heath, Staffordshire. Oct. 23, 1933, No. 29262. [Class 43.] A non-skid device for vehicle wheels comprises side clamping plates 2, 3, Fig. 1, carrying chain units 1 passing across the tread of the tyre, the clamping plate 2 being formed integrally with a looped buckle frame 7 having a slidable clip 8 thereon adapted to grip the securing strap 6 extending from the other clamping plate. The clip 8 is formed with inturned guide lugs 10 which embrace the side members of the buckle frame and a slot 9, Fig. 4, at its lower end through which the end of the strap is passed in mounting the device, tightening of the strap producing a sliding movement of the clip which causes the strap to be gripped between a serrated part 12 of the clip and the end bar of the frame. The strap may be further secured by passing it over a recessed bar 5 and through a slot 4 in the clamping plate. The clip 8 is formed with a curved terminal flange 11.
Patent GB-190596-A (GB)
Title: Improved means for varying the intensity of illumination of road vehicle electric lamps
IPC: B60Q1/14
Filed: 1921-11-03
Abstract: 190,596. Runbaken, J. H., and Torrance, W. Nov. 3, 1921. Lighting systems. - An electric lighting system is provided with a " dimmer " comprising a variable resistance and a switch, normally short-circuiting the resistance, which is adapted to be opened magnetically, pneumatically or mechanically to insert the resistance. The variable resistance consists of a resistance coil a, and a contact c adapted to be rotated by a handle d. A contact i engages a contact j when a magnet n is energized by the closure of a switch m and the resistance a is cut out of the lamp circuit f. When the switch m is opened the contact k engages the contact c and the resistance a is inserted in the lamp circuit.
Patent GB-1307146-A (GB)
Title: Apparatus for reading magnetic tapes stored in cassettes
IPC: G11B15/675
Filed: 1971-06-23
Abstract: 1307146 Cartridge loading arrangement STAAR SA 21 June 1971 [26 Feb 1971] 29043/71 Heading G5R In a recorder adapted for playing a cartridge 12, Fig. 1, of the type in which in its progress from, and back to, a central reel the tape 13 is twisted to lie in a plane parallel to the principal planes of the cartridge, progressive insertion of the cartridge into an inclined passage in the machine firstly depresses a spring 40, Fig. 5A, then it impinges upon a member 31, 33, Fig. 5, which is thereby pushed down to cause an extension 34 thereof to release a member 35 carrying roller 17 which is spring urged to the right as shown in Fig. 5, the roller 17 then enters the cartridge, Fig. 6, to bear on the tape, and the axle 18 of the roller pushes the lower end of the cartridge to the right, which in turn pushes a slide 50, 51, 52 to the right, Fig. 7. Thus finally the cartridge assumes a vertical position, Fig. 7A, with a recess 42 in its side wall engaging with a projection 44 in the machine, and with the roller 17 pressing the tape 13, Fig. 7, against a drive shaft 5. The cartridge is maintained in this position by the joint action of the spring 40, Fig. 7A, and the spring urged roller 17, Fig. 7. The cartridge is ejected by moving a lever (not shown) which withdraws the roller 17 from the cartridge. This causes the axle of the roller to impinge upon the slide 50, which is thereby moved to the left taking the cartridge with it. Once the recess 42 in the wall of the cartridge is clear of the projection 44 in the machine, the spring 40 ejects the cartridge and the member 34, 31 rises to lock the roller 17 in its inactive position, Fig. 5.
Patent GB-714779-A (GB)
Title: An improved windscreen wiper
IPC: B60S1/44
Filed: 1951-12-17
Abstract: 714,779. Windscreen cleaners. DUNLOP RUBBER CO., Ltd., and TREVASKIS, H. W. Nov. 11, 1952 [Dec. 17, 1951], No. 29436/51 Class 138 (1) A windscreen wiper, comprises a hoop 5 rotatable adjacent a windscreen 3 and in a plane parallel thereto, a wiper blade 8, 9 secured to the hoop to wipe the windscreen and means to rotate the hoop, comprising a plurality of vanes 6, operated by the air current induced by. movement of the vehicle. The wiper is particularly suitable in aircraft windscreens. Two rubber wiper blades 8, 9 are held in a channel-sectioned backing member 7 secured at its ends to diametrically opposite positions on the hoop 5, which is provided on its inner periphery with the vanes 6. The outer periphery of the hoop is free to rotate in grooves 4 in rollers 1 rotatable on spindles 2 secured to the windscreen 3. When the pressure of the slipstream reaches a predetermined value the hoop is rotated. The blades 8, 9 are bent along their longitudinal axes so as to drag behind the member 7 as the hoop rotates in the direction of the arrow D. One roller may be rotatable by a flexible drive from the engine or a separate motor so as to rotate the hoop when the pressure of the slipstream is insufficient. Also one roller may be locked against rotation so that the friction between it and the hoop will prevent rotation of the latter when the wiper is not required to be used. The roller spindles may be secured to the side frames of the windscreen instead of on the windscreen itself and the rollers may be fixed.