baber/WOPTO huggingface dataset:
Patent GB-794603-A (GB)
Title: Improvements in or relating to electron precision oscillographs
IPC: H01J31/12
Filed: 1955-10-13
Abstract: 794,603. Cathode-ray tubes. ARDENNE M. VON. Oct. 13, 1955 [May 20, 1955], No. 29149/55. Class 39(1). An electron precision, micro-or high-speedoscillograph for internal photography includes electron optical means for reducing the initial cross-section of the electron beam to provide a recording spot of 1 to 10 Á with a scanned area of more than 5À10<SP>6</SP> times that of the recording spot, in order to keep the errors of deflection for large angles within the order of magnitude of a few microns. The beam aperture αL at the spot may be about 5À10<SP>-5</SP> to 2À10<SP>-4</SP> radian for a recording surface of about 10 x 10 cm.<SP>2</SP>. A diaphragm with an aperture smaller than 5À10<SP>-4</SP> radians on the recording spot side is preferably disposed at, or adjacent to, the focus of the final lens. The diaphragm is preferably rendered free of electrostatic charges. It may be e.g. made of platinum, and adapted to be heated to a high temperature e.g. over 500C. There may be one or more electron lenses of short focal length for reducing the cross-over of the beam to a diameter of 1 to 10Á and an associated main lens for projecting the image on to the recording surface. The main lens is strongly screened. Electrostatic or magnetic lenses may be used. The dimensions and optical distances of suitable lenses are given. The length of the deflection field may be more than 15 per cent of the distance of the deflection system from the screen. High speed oscillograms are recorded on fine-grained photographic material for subsequent evaluation by means of a measuring microscope. A non-granular fluorescent screen may be provided for centering and focussing the instrument. Tables are given showing deflection sensitivities and deflection errors in practical cases.
Patent GB-243363-A (GB)
IPC: E04B7/10
Filed: 1925-11-19
Abstract: 243,363. Junkers, H. Nov. 24, 1924, [Convention date]. Roofs; walls; arches.- Lattice-work skeletons, Fig. 1, for walls, vaults, and roofs consist of short metallic elements secured at their overlapping ends to form cells. The elements may be rods, or strips of sheet metal, or round or flattened tubes, all with their ends flattened and bent to lie close together and secured by bolts or rivets. Figs. 3 and 4 show two examples of a junction. The long edges of sheet metal strips may be curled over as shown in Fig. 10; the ends are flat and formed with bent portions 2, 3, and may be wider than the body portion.
Patent GB-453806-A (GB)
Title: Improvements in or relating to quick release coupling devices, particularly for pipes
IPC: F16L37/10
Filed: 1935-10-22
Abstract: 453,806. Shaft couplings. LAKE, H. P., 35, Alderbrook Road, Balham, London. Oct. 22, 1935, No. 29173. Addition to 433,495. [Class 80 (ii)] [See also Group XXVIII] The quick-release coupling of the parent Specification is provided with axially -movable tubular shrouds adapted to protect the engagement projections when the coupling-members are connected or disconnected. Coupling- members 10, 10a, Fig. 4, for connecting hose pipes are brought together and then rotated to cause a pair of toothed members 21 on the member 10 to engage with complementary members 21a on the member 10a. During the axial movement, tubular shrouds 14, 14a surrounding the members 10, 10a respectively are pushed back against the action of springs 17, 17a owing to the engagement of the ends of the members 10, 10a with lugs 19, 19a projecting radially inwardly from the shrouds, and after the rotational movement the shrouds are pressed forward and engage between interengaged pairs of members 21, 21a to prevent release thereof by relative angular movement. The members 14, 14a have telescopic engagement with each other to prevent dust from entering the joint, and fluid-tightness is secured by means of rubber rings inserted in annular grooves in the abutting faces of the members 10, 10a. In a modification, Fig. 7, rubber rings 27, 27a are inserted in recesses in the ends of coupling-members 10, 10a and are cut-away to receive flanges on liners 28 which may be split to allow of removal and may be made of material inert to the fluid. A loose washer 32 of triangular section is placed at each end of the coupling to resist the tendency of the hose pipes to crack due to flexing and to improve the flow of the fluid. In a further modification, the rubber rings 28, 28a are not shaped to receive the flanges but are pressed into shape thereby, and the sleeves are split and extend only partly into the members 10, 10a.
Patent GB-869540-A (GB)
Title: Oil burner installation for a brick or tile
IPC: F23C99/00
Filed: 1957-09-17
Abstract: 869,540. Supplying oil to burners. NIESPER, A. A. Sept. 17, 1957 [Sept. 20, 1956], No. 29200/57. Class 75(1). A fuel supply system for oil burners comprises a pump 3 delivering oil from an oil tank 1 to a first pipe 4 connected through a pressure regulator 6 to a second pipe 7 connected through a second pressure regulator 9 to the oil tank, and a plurality of burner feed pipes 12 connected between the first and second pipes 4, 7. The pressure in the first pipe 4 is higher than the pressure in the second pipe 7.
Patent GB-831908-A (GB)
Title: Process for sweetening petroleum distillates
Inventor: SMITH JOHN THOMAS
IPC: C10G27/08
Filed: 1957-09-17
Abstract: A catalyst used in sweetening petroleum distillates comprises 6-12 wt. per cent cupric chloride (CuCl2, 2H2O), 5-20 wt. per cent water, 3-9 wt. per cent ammonium chloride, the balance being an inert support.  The support is preferably a clay, particularly Attapulgas or Surrey clay, but silica gel, alumina, unglazed porcelain, charcoal and finely divided coke from fluidized coking of heavy petroleum oils are also mentioned. Preferably the support has a particle size from 8-40 mesh and the catalyst particularly has the composition 7-9 wt. per cent CuCl2, 2H2O; 12-18 wt. per cent water; 3-9 wt. per cent ammonium chloride; balance, 8.20 mesh clay.  In the sweetening process, a stream of air and the distillate is passed over a fixed catalyst bed, the feed rate of the distillate being 500 to 3000 mls. per hour per 200 gms. of catalyst.  Preferably the process is carried out at ambient temperature and atmospheric pressure, but increased pressure, e.g. up to 2-3 atm., may be used.  The process, which is continuous, is carried out until the product is doctor positive or the copper carry over exceeds 0.2 p.p.m.  It is stated that the feed is preferably of b.p. below 650 DEG  F., but may be a gasoline, kerosine, diesel or virgin naphtha stock.  In example, a catalyst comprising 9% CuCl2.2H2O, 15% H2O, 5% NH4Cl and 71% 8-20 mesh Surrey clay is used to sweeten the following: (a) Iranian kerosine Raffinate b.r. 319-502 DEG  F.; (b) Kuwait distillate b.r. 241-440 DEG  F.; (c) Kuwait Kerosine Distillate b.r. 320-500 DEG  F.; (d) Iraq Kerosine Distillate b.r. 325-507 DEG  F.
Patent GB-777705-A (GB)
Title: A method of and apparatus for machining curved surfaces on bodies
IPC: B24B17/02
Filed: 1953-10-23
Abstract: 777,705. Copy grinding. MUSYL, R. Oct. 23, 1953 [Oct. 25, 1952], No. 29287/53. Class 60 [Also in Group XXII] A workpiece 16 rotated by motor 41 is ground by a grinding wheel 15 on a carriage 3 movable on slideways 17 on a cross-slide 2, displacement being effected by a screw spindle 19 driven by a motor 18; the cross-slide 2 is movable on slideways 11 on the base 1, displacement being effected by a screw spindle 13 operated by a handwheel 12. The cross-slide 2 carries two cam rollers 21, 22 and a driving motor 23; the motor drives the cam roller 21 through worms 24 and wormwheel 25; the cam roller 22 is driven by gears 26, 26. The carriage 3 carries a motor 31 driving the grinding wheel 15 through belts 32. The grinding wheel 15 is controlled in the horizontal direction by the cam roller 22 through follower 33 and rod 34; contact of follower 33 with cam roller 22 is en-- sured by spring 39. Control in vertical direction is effected by cam roller 21 through follower 35 and levers 36, 37, the lever 36 pivoting about the axis of the shaft of motor 31. With suitably designed cam rollers 21, 22 the centre of the grinding wheel is always situated on the geometrical normal to the surface of the workpiece at the point where the 'latter is contacted by the grinding wheel. For machining a workpiece such as a screw propeller having helically twisted surfaces, the rotation of the workpiece 16 by the motor 41 has superimposed thereon a rotation effected by epicyclic gearing; this avoids unduly complicated cam rollers. The spindle 19 for traversing the carriage 3 is connected at 46 by a detachable universal joint coupling to a gear 47 meshing with a gear 48 rotating freely on a sleeve 49 and carrying planet gears 50, 51 meshing respectively with gears 52, 53. The gear 52 is carried by the sleeve 49 and is driven from the motor 41 through worms 56, 56 and wormwheel 57. The gear 53 is keyed on the drive shaft 54 of the workpiece. Normally, the gear 47 is uncoupled from spindle 19 and prevented from rotating, so that the motor 41 drives the workpiece at a speed corresponding exactly  to the speed of the cam rollers 21, 22. When gear 47 is driven by spindle 19, an additional angular movement is superimposed on the spindle 54 so as to produce a helically twisted shape, the twist'depending on the transmission ratio of the epicyclic gearing; change speed gearing may be arranged between the universal joint 46 and the gear 47. The headstock with motor 41 may be rotatable as a whole about the axis of the workpiece by a separate drive to modify the speed of the workpiece. Specification 662,769 is referred to.
Patent GB-1465714-A (GB)
Title: Motor vehicle open centre series hydraulic circuit
IPC: B29C47/00
Filed: 1974-07-03
Abstract: 1465714 Motor vehicle hydraulic steering and brake circuits WEATHERHEAD CO 3 July 1974 [16 July 1973] 29536/74 Heading B7H [Also in Division F2] In a motor vehicle fluid power circuit in which a pump 11 is hydraulically connected to an open centre steering valve 14 and to a brake booster 13, means responsive to the working pressure of the brake booster throttles fluid flow from the pump and maintains the pump outlet pressure at a pressure differential above the working pressure of the brake booster. As shown in Fig. 1 the steering valve 14 is in the neutral position and the brake booster 13 is deactuated. A control spool 69 is biased into the far left position by a spring 71 and output from pump 11 flows through line 12 and inlet 26 and acts through passage 76 in spool 69 to move the spool to the right hence pumping fluid to the left of throttling land 74 and through outlet port 27 to steering valve 14. On operation of input rod 31 to the left by the brake pedal a valve seat 41 engages a poppet 57 which isolates a power chamber 51 from outlet passage 39. Further movement of rod 31 to the left moves poppet 57 against force of spring 65 until a valving land 66 moves past inlet passage 63 of a power piston 47 establishing throttled communication between the pump pressure in inlet passage 63 and power chamber 51. This pressure acts against power piston 47 which is moved to the left to operate brake master cylinder 22. During this movement spring 65 retains poppet 57 against valve seat 41 and valving land 66 closes the inlet passage 63 thus keeping pressure in chamber 51 constant. Force applied on the rod 31 of increasing magnitude will retain the valving land 66 in the open position until the desired amount of breaking has been achieved. On release of force on input rod 31, pressure in chamber 51 moves input rod 31 back to the right to separate valve seat 41 from poppet 57 to throttle fluid in chamber 51 through passages 39, 40 thus releasing force on master cylinder 22. When rod 31 engages the end face of piston 47 for maximum breaking effect the pressure within chamber 51 moves poppet 57 away from valve seat 41 therefore limiting the pressure in chamber 51 to below the internal relief pressure of the pump 11. In a further embodiment, Fig. 2, an electrically driven emergency back up pump 90 is incorporated so that in the event of fluid pressure failure fluid pressure acting on rightwardly facing surface of a plunger 96 is not sufficient to prevent spring 97 moving the valve 95 to the right thus isolating the primary pump 11<SP>1</SP> from the outlet passage 39<SP>1</SP> which is then connected to the inlet side of back up pump 90. At the same time control spool 69<SP>1</SP> is moved to the left by spring 71<SP>1</SP> to isolate the brake booster from the outlet side of pump 11<SP>1</SP> and prevents flow from the back-up pump inlet 91 to the primary system, the brake booster 13<SP>1</SP> operating from fluid via inlet 91 of the back-up pump 90.
Patent GB-191527-A (GB)
Title: Improvements in winding gear for tennis and like nets
IPC: A63B61/02
Filed: 1921-11-07
Abstract: 191,527. Dale, Forty, & Co., Ltd., and Wilkes, F. W. Nov. 7, 1921. Cord strainers.-Bearings for the worm-wheel and drum upon which the supporting cord of a lawn tennis net is strained are provided in a bracket 1 secured to the post. The bracket, which is provided with ears 4, 5, between which the horizontal drum 11 and worm-wheel 7 are mounted, carries also at least one of the bearings for the worm spindle 2 which is actuated by the handle 12. The other worm-bearing may be provided in an independent fixture 10 on the opposite side of the post. In the construction shown in Fig. 4 both bearings for the worm spindle are carried by the bracket.
Patent GB-728525-A (GB)
Title: Improvements in expansive bits for drilling holes in wood
Inventor: PHILLIPS ROBERT PERCIVAL
IPC: B27G15/00
Filed: 1952-11-24
Abstract: 728,525. Augers. RIDGEWAY & SONS, Ltd., W. Oct 15, 1953 [Nov. 24, 1952], No 29586/52. Class 83 (3). An adjustable auger comprises a cutter 11 having serra. tions meshing with similar serrations on a packing piece 16 secured by a screw 20, and a spring 24 to lift the packing- piece and clear the serrations when the screw is slackened.
Patent GB-610060-A (GB)
Title: Improvements relating to gas pressure governors
IPC: G05D16/06
Filed: 1945-11-07
Abstract: 610,060. Combined gas-governing and safety cut-off valves. METERS, Ltd., and BARNES, H. V. Nov. 7, 1945, No. 29717. [Class 135] A combined gas-governing and safety cut-off valve, having a diaphragm-controlled valve stem d, Fig. 1, carrying a governing valve band a cut-off valve a, is permanently loaded by a weight f, and, when the gas pressure becomes excessive, by a weight g which is picked up by a collar h on the valve stem. After failure of the gas supply pressure, the cut-off valve is re-opened by a manually-actuated plunger i.
Patent GB-871474-A (GB)
Title: A servomotor operated fuel control system for a gas turbine power plant
IPC: F02C9/46
Filed: 1957-09-20
Abstract: 871,474. Fluid-pressure servomotor control systems. UNITED AIRCRAFT CORPORATION. Sept. 20, 1957 [Sept. 21, 1956], No. 29735/57. Drawings to Specification. Class 135. [Also in Group XXVI] The subject-matter of this Specification is substantially the same as that described in Specification 841,961 but the claims are concerned with the control of the throttle valve for regulating the fuel flow. Specification 781,961 also is referred to.
Patent GB-679267-A (GB)
Title: Improvements in and relating to multi-channel pulse signalling systems
Inventor: LEVY MAURICE MOISE
IPC: H04J3/08
Filed: 1949-11-21
Abstract: 679,267. Multiplex pulse signalling. GENERAL ELECTRIC CO., Ltd. Nov. 24, 1950 [Nov. 21, 1949], No. 29745/49. Class 40 (v). In a pulse time-division multiplex signalling system with n interlaced channels, (n - - r) channels are dropped by providing a gating circuit, the gating pulses for which are derived from the synchronizing pulses and have a recurrence frequency of r times the channel recurrence frequency and a duration equal approximately to one channel interval, n/r being an integer. In the embodiment described, a radio repeater station is adapted to receive and transmit all 36 channels of the system from and to a station A<SP>1</SP> and to communicate with two other stations B<SP>1</SP> and Clover 24 channels and the remaining 12 channels respectively. The incoming wave from station A<SP>1</SP>, received on the common transmitting and receiving aerial A, provides at the output of the receiver 10 ... 15, the 36-channel multiplex pulse train which is fed in parallel to two gate circuits 16, 17 and a synchronizing signal separator 18. From the synchronizing pulse train, the twelfth harmonic of the recurrence frequency is selected in circuit 19 and used to produce, in the waveform generator 20, oscillations of rectangular waveform in which the positive-going portions have half the duration of the negative-going portions. This wave is applied to the gate circuit 16 after appropriate phasing to select, for example, the pulses of channels 1, 4, 7, &c., which modulate radio transmitter 21, 22, 23, connected to aerial B, communicating with station B<SP>1</SP>. The remaining channel pulses are selected in gate circuit 17, by applying thereto the same waveform, but in opposite sense, and modulate the transmitter 24, 25, 26 connected to aerial C, communicating with station C'. The channel pulses received on aerials B and C are applied to the mixer 28 of radio receiver 28.... 33, or to separate mixers whose outputs are combined, and the resultant complete multiplex pulse train is retransmitted by transmitter 34, 35, 36 from aerial A to station A<SP>1</SP>.
Patent GB-326179-A (GB)
Title: Improvements in or relating to light-sensitive devices
IPC: H01J40/06
Filed: 1928-12-01
Abstract: 326,179. Robinson, J. Dec. 1, 1928. Divided on 326,498, [Class 40 (iii), Telegraphs, Electric]. Vacuum tubes.- A 'light - sensitive cell comprises a plurality of thin metallic films or film sections so arranged that light from a single source passes through the films in turn. An evacuated glass or quartz vessel 10 has a plurality of tubes 11, the interior of each being coated with a light-sensitive metal, such as zinc, in a film 12 so thin as to be transparent. Thicker deposits 13 serve to join the films in series, and similar deposits 14, 15 provide connection to external terminals. The resistance of the film varies in accordance with transmitted light, a potential difference being applied across terminals 14, 15. Electrons emitted from the metal films are collected by insulated electrodes 18, another method of employing the device being to apply a positive potential to the electrodes 18 and thus make use of electron flow from film to electrode. The films may also be supported on flat glass or quartz plates or on concentric tubes. The Provisional Specification states that a number of glass plates with a film on both sides may be used.
Patent GB-211918-A (GB)
Title: Improvements in or relating to liquid treatment of cinematograph films
IPC: G03D15/00
Filed: 1922-10-31
Abstract: 211,918. Technicolor Motion Picture Corporation, Troland, L. T., Ball, J. A., and Andrews, J. M. Oct. 31, 1922. Continuous apparatus for developing and like treatment; drying apparatus.-One surface of a kinematograph film is treated with liquid by moving the film over the surface of the liquid, the film being normally supported solely by liquid. To facilitate flotation, the margins of the film may be made water-repellent either by dissolving off the unexposed gelatine emulsion and leaving the celluloid bare, or by giving said portions a suitable coating such as stearic acid wax or paraffin. The film may be made multiply to keep it flat. In the apparatus described, the film A, Figs. 1 and 6, which consists of.two celluloid strips cemented together and having complemental relief images on their outer sides, passes over a roller 34, where its edges contact with spring urged wax-ends 54 under a roller 35 to the V-shaped liquid trough 24, whose width at the liquid level, is slightly greater than that of the film, the trough being supported in an overflow tank 23 having an outlet pipe 23<1>. The film is drawn over the surface of the liquid, and then up under a roller 39 into a surfaceliquid removing apparatus which consists of a block 42, Fig. 7, having, at its lower surface a transverse nozzle 43 with an elongated slot 44, inclined at an angle to the film, through which compressed air is forced. Liquid is removed from the sprocket holes in the film by suction through holes in the recess connected through a chamber 46 and pipe 47 to a pump. The film then passes up through a slot in an elongated drying chamber 14, where it travels over guide rollers 16, shaped to contact only with the edges of the film, and meets warm air forced into the other end of the chamber through a pipe 20. Thence it passes to the driving and winding member which consists of a sprocket wheel 58, Fig. 8, engaging the film and mounted on a shaft 57 driven by worm gear 60, 62, from which it passes to a take-up reel mounted on a lower shaft 69 which is rotated by a pulley 71, 72, driven from a pulley wheel 65, 66 on the upper shaft 57, mounted loosely on the shaft 69, and frictionally engaging, under the influence of an adjustable spring 74, with a disc 73 keyed on the shaft 69.
Patent GB-1373058-A (GB)
Title: Pneumatic nail driving or stapling machine
IPC: B25C1/04
Filed: 1972-06-26
Abstract: 1373058 Fastener driving tools BUKAMA GmbH HANNOVER 26 June 1972 [26 June 1971] 29769/72 Heading B4C A pneumatically actuated tool for driving fasteners, e.g. nails or staples comprises a control rod 10 biased by compressed air in chamber 18 to its illustrated position and movable by compressed air within reservoir 3 downwardly, when the chamber 18 is vented, to permit tubular valve member 12 to be moved away from the upper end of cylinder 4 so as to open communication between the upper end of the cylinder and the reservoir, thus causing fastener driving piston 5 to perform a working stroke. Air from the reservoir is supplied to the chamber 18 via bore 20 and nozzle 21.  Venting of the chamber 18 is achieved by pushing the nose 8 of the tool against a work surface so as to displace the interconnected members 27, 29, 32 and 35 against spring 34, and by actuating trigger 26 so as to move bushing 23. With the member 27 and bushing 23 in their operative or displaced positions the air within the chamber is vented via bores 40, 39, 46, 48, 47 and 51. Return of member 27 and/or bushing 23 to the inoperative position(s) will terminate venting of the chamber 18 so that when the pressure in the chamber reaches a predetermined value the control rod 10 will be returned to its illustrated position. The time interval between terminating venting of the chamber 18 and return of the control rod 10 can be varied by using different nozzles 21.