baber/WOPTO huggingface dataset:
Patent GB-851591-A (GB)
Title: Automatic gear-changing apparatus for road, rail or other vehicles
Inventor: SUTHERLAND WILLIAM DRUMMOND
IPC: F16H61/00
Filed: 1955-10-26
Abstract: 851,591. Change-speed gearing. C.A.V. Ltd. Oct. 25, 1956 [Oct. 26, 1955], No. 30590/55. Class 80 (2). In electrically - operated gear - changing apparatus controlled automatically by vehicle speed, means are provided to bring all the gears to neutral position in the event of failure of the speed-responsive device whilst at least the highest of the ratios is engaged. As shown, first speed is engaged upon closing a switch n2 by energisation of a magnet 1 from a battery c through closed switches n<SP>1</SP>, ml, d<SP>2</SP>, e<SP>3</SP>, f<SP>4</SP>. Higher speeds are brought in as vehicle speed increases by a vehicle generator a which successively closes relay switches g<SP>1</SP>, h<SP>1</SP>, j<SP>1</SP> to energise the coils d, e, f of contactors associated with magnets 2, 3, 4 for these higher speeds. Contacter d serves to open switch d<SP>2</SP>, de-energising magnet 1, and close a switch d<SP>1</SP>, energising magnet 2 through closed switches e2, f<SP>3</SP>, Contactor e serves to open switches e<SP>2</SP>, e<SP>3</SP>, deenergising magnet 2, and close a switch el, energising magnet 3 through closed switch #<SP>2</SP>. Contactor f serves to open switches f<SP>2</SP> f<SP>3</SP>,f<SP>4</SP>, deenergising magnet 3, and close switch #<SP>1</SP>, energising magnet 4. In the arrangement shown in Fig. 2, the primary winding of a transient current transformer p is connected in series with the generator a and the secondary winding is connected in series with a relay winding o<SP>1</SP>. In the event of failure of the speed-responsive system, the sudden cessation of current through the primary winding of transformer p produces a transient current in the secondary winding which passes through the relay winding o<SP>1</SP>, causing a switch o<SP>3</SP> to close and switch o<SP>4</SP> to open, so bringing all the gears to neutral. Closing of switch o<SP>3</SP> brings a holding winding o<SP>2</SP> into action for holding the switch o<SP>4</SP> open. In the arrangement shown in Fig. 3, the generator a, or alternator plus rectifier, closes a relay switch q<SP>1</SP> to energise a delayed-action magnet k operative to close a normally-open switch k<SP>1</SP> in series with a normally-closed switch d3, opened by coil d, and a coil m controlling a switch m<SP>1</SP> (equivalent to o<SP>4</SP>, Fig. 2) and normallyopen hold-on contacts m<SP>2</SP> in parallel with the switches d<SP>3</SP>, kl. In the event of failure of the speed-responsive system, switch d<SP>3</SP> closes and, due to the delay action of magnet k, switch k<SP>1</SP> remains closed sufficiently long for coil m to open switch m<SP>1</SP>, and close switch m<SP>2</SP>, which latter then maintains coil m energised. In Fig. 1, not shown, the relay switch q<SP>1</SP> is replaced by a pair of switches in parallel, these being closed respectively by the contactors e and f, so that the apparatus functions as in Fig. 3 only when in third or fourth speed.
Patent GB-913894-A (GB)
Title: Improvements in or relating to optical viewing systems for armoured installations
IPC: F41G1/40
Filed: 1959-09-09
Abstract: 913,894. Anamorphotic periscopes. HOPP, G. Sept. 9, 1959 [Sept. 15, 1958], No. 30855/59. Class 97 (1). A periscopic system suitable for armoured vehicles and the like comprises an anamorphotic objective to compress an elliptical field of view, preferably with horizontal major axis, into a one-dimensionally distorted circular image field which may then be further imaged by an ordinary spherical system and finally imaged by an anamorphosing system to compensate the distortion and present via an eyepiece a suitably magnified image of the elliptical field of view. As shown in Fig. 3, the anamorphotic objective 16 comprising cylindrical lenses 17, 18 and mirror 19 is disposed outside the armour-plating 5 and the compressed circular image 2 (see Fig. 4) of an elliptical object field 1 is imaged by the spherical imaging system 10 on an infrared image converter 11 (for night use), the final image 3 being viewed by the eyepiece 22 via an anamorphosing correcting system 23 which extends the circular compressed image 2 to correspond with the elliptical field of view. If desired, the distorted circular field may be left uncorreoted. The direction of viewing is preferably parallel to that of the objective axis, but the light path through the periscope may include additional right-angled reflections. The objective may also be of the mirror prism-type, two of the prism faces having cylindrical power. The invention is said to provide wider field of view in one dimension with no loss of resolving power as compared with a spherical system.
Patent GB-175015-A (GB)
Title: Improvements in or connected with harvesting machines
IPC: A01D65/08
Filed: 1920-11-03
Abstract: 175,015. Broomfield, E. r., and Harrison, T. D. Nov. 3, 1920. Harvesting-machines.-A divider for parting the crop in front of the main wheel of a sheafbinding harvester while the first circuit of the field is being made consists of two side-bars 3 converging together to a point at the end of a central supporting-bar 4, which is permanently or detachably connected to the frame bar 8 in front of the wheel. The bar 4 may be secured by means of an arm 6 provided with a lug 7 fitting the bar 8 and held in place by a set-screw. The rods 3 may be moved at the rear towards the wheel, and may be inclined downwards towardsthe front.
Patent GB-1406707-A (GB)
Title: Object recognition
IPC: G01S17/89
Filed: 1972-07-03
Abstract: 1406707 Identifying aircraft BRITISH AIRCRAFT CORP Ltd 1 Oct 1973 [3 July 1972] 31122/72 Heading H4D To provide in a system carrying aircraft 8 a plan view of a second aircraft 2, heading towards the first aircraft, the second aircraft is irradiated by a very short laser pulse, whereby reflections thereof start from the nose and finish from the tail. The reflections are received and focused by a lens 20, Fig. 2, on to the target of a streak camera 12 wherein the electron bundle from the target produced by the received reflection is scanned from the top to the bottom of a fluorescent display screen 24 at a speed corresponding to the speed of light, whereby the reflections from the nose appear at the top of the screen and those from the tail appear at the bottom of the screen, the overall result being a plan view 30 of the aircraft 2. An image intensifier 28 views the screen 24 via a light fibre bundle 26. Ground radar initially acquires the second aircraft and transmits its co-ordinates to the system carrying aircraft, radar on board said system aircraft keeping the laser pulse transmitter directed on the second aircraft 2. Plan views of ships or vehicles may be similarly produced, with a view limiting mask 34 in front of the target allowing the display of a selected horizontal section only.
Patent GB-445759-A (GB)
Title: Improvements in and relating to free-wheel hubs for cycles
IPC: B62K25/02
Filed: 1935-11-11
Abstract: 445,759. Detachable-wheel mountings for cycles. WILMINK, G., 29, Markt, Hengelo, Holland. Nov. 11, 1935, No. 31187. Convention date, Nov. 12, 1934. [Class 136 (ii)] In a readily detachable free-wheel cycle hub of the type in which the driving cone 16 is detachably coupled to a member 14 carrying the sprocket 5 and rotating on a socket 1, into which an axle 2 is normally screwed to hold the parts in the coupled position, the axle 2 is screwed into the fixed cone 11 at the opposite end, and is provided with a collar 19 or like projection adapted, when the axle is screwed out from the socket 1, to engage a shoulder 22 at the inner end of a recess 18 in the driving cone 16 and thus hold together both cones, the intermediate parts, and the hub casing, whereby the wheel may be detached, leaving the member 14 and sprocket 5 in position.
Patent GB-227974-A (GB)
Title: Improvements in or relating to ball bearings
IPC: F16C33/41
Filed: 1923-12-12
Abstract: 227,974. Wood, H. S., and Rudge- Whitworth, Ltd. Dec. 12, 1923. Ball bearings. - A spacing-cage has three ball cavities d, e, substantially equidistant from one another, in which the balls are inserted in a radial direction, and openings g which receive the remaining balls in an axial direction. To assemble the bearing the balls are placed in the radial cavities first, and the cage is placed on the inner race ring, which is then swung into position in the outer race ring as shown in Fig. 5, a filling-notch b<2> allowing the third ball to enter the race groove. The remaining balls are inserted, one by one, through the notch b<2> and a corresponding notch in the inner raca ring. Specification 17603/09 is referred to.
Patent GB-725927-A (GB)
Title: Improved hook for cranes and other lifting apparatus
IPC: B66C1/36
Filed: 1953-11-11
Abstract: 725,927. Hooks. PARSONS, R. C. Nov. 11, 1953, No. 31235/53. Class 89(2). A hook 1, Fig. 1, is closed by arms 5, 6, Fig. 2, pivoted by pins 3, 4 to a bracket 2 welded to the hook. The arms are urged by torsion springs 7 to engage the nose 8 which is cut away to receive them. A finger slot is formed between the arms whereby they may be spread apart and turned in opposite directions to open the hook.
Patent GB-1454927-A (GB)
Title: Motor driven beam trasnporting truck
IPC: B62D51/00
Filed: 1974-07-15
Abstract: 1454927 Luffiing-arm apparatus TODO SEISAKUSHO Ltd 15 July 1974 [18 March 1974] 31252/74 Heading B8H [Also in Division B7] A motor driven beam transporting truck comprises a base 1 which is U-shaped in plan and which is supported by front and rear wheels 3, 4 as well as by freely rotatable wheels 2, the wheels 3, 4 being drivable by respective driving motors (not shown) which are independently operable and energized from batteries mounted on the base 1, support shafts 5, 6 for the wheels 3, 4 respectively being mounted in bearings 9, 10 for rotation about vertical axes, and when a lever 20 is rotated downwardly it may then be swung about a vertical axis to cause the supporter shaft 6 and the wheel 4 to turn, the wheel 5 making a corresponding movement, as the support shaft 6 is connected to the support shaft 5 by a connector bar 13 and by pairs of bevel gears (11, 14) and (12, 15), Fig. 1 (not shown). The lever 20 is provided with a handle 24 and a braking lever 25 which controls the brakes for the wheels 3, 4 as well as the motors for the said wheels, the lever 20 also being provided with a panel 26 having push-buttons B, C, D, E for producing forward and backward rotation, as well as low and high speed rotation of the wheels 3, 4. Another panel 28 having push buttons J, K is provided for causing rotation of the front wheel 3 at a low speed for fine adjustment of the truck, and when the wheels 3, 4 have been turned by the lever 20 through 90 degrees from the position shown in Fig. 4 the said wheels are driven in a forward or backward direction under the control of push-buttons F, G, H, I provided on a separate panel 27, this latter-mentioned position being assumed by the wheels 3, 4 when the truck is being moved towards a beam which is to be transported. A pair of beam support arms 32 are mounted on a horizontal shaft 30 and are freely slidable therealong, the shaft 30 being rotatable about its axis by means of a pair of hydraulic rams controlled by a lever (34), Fig. 3 (not shown). Each arm 32 has a beam receiving recess 38 formed therein.
Patent GB-307284-A (GB)
Title: Improvements in automatic flushing apparatus
IPC: E03D1/16
Filed: 1928-10-29
Abstract: 307,284. Levick, J., and Baker, W. Oct. 29, 1928. Fluids, regulating volume of flow of.-A main cistern 1 with an automatic siphon, such as that described in Specification 18888/03, [Class 26, Closets &c.], is fed from an auxiliary vessel 14 supplied from the main under control of a floatoperated valve, the vessel 14 having a discharge fitting comprising a removable cone 19 or equivalent provided with an aperture 20.
Patent GB-828182-A (GB)
Title: Improvements relating to spindles for horizontal boring, drilling and milling and other machine tools
Inventor: STEPHAN HALLIS NOAH
IPC: B23B31/26
Filed: 1957-10-07
Abstract: 828,182. Boring, facing and milling-machine details; chucks. NEW BRITAIN MACHINE CO. Oct. 7, 1957, No. 31286/57. Class 83 (3). A spindle arrangement for a boring, facing and milling machine or other machine-tool, having lead-screw feeding means similar to that described in Specification 781,660, includes means for locking or binding a tapered tool arbor. The arbor L of a milling cutter is provided with an extension part or adapter 38 threaded into a hole 37 in the end of the arbor, or forming an integral part thereof, and having a tapered neck 42 oppositely inclined to the tapered end of the arbor. This neck portion is adapted to be gripped by the tapered ends of fingers 46 of a collet 44, when the latter is retracted by a spring 56, the tapered ends of the collet fingers being wedged between a taper on a collar 52 fixed in the spindle bore and the neck on the adapter. To release the tool arbor from the spindle, a fluid-pressure piston 65, Fig. 3, under control of a solenoid-operated valve 74, is moved to the right to force a tube 70 connected to a cross-head 57 to the right. This action compresses the spring 56 and moves the collet 44 to release its gripping fingers from the neck of the adapter. At the same time an ejector member 60 pushes against the end of the adapter to release the tool arbor from the spindle 20. When fluid pressure on the piston 65 is released, the collet and tube 70 start to move to the left, but a latch 76 springs into a groove in the piston periphery to hold the gripping parts in a position where a fresh tool arbor may be inserted into the spindle. Automatic clamping is then effected by the application of fluid pressure, through a line 85, under a piston 83 connected to the latch 76 and controlled by a solenoid valve 86. In lieu of the fluid-pressure piston a hand-operated device may be employed for drawing back the collet and compressing the spring through a cam.
Patent GB-796014-A (GB)
Title: Improvements in and relating to internal combustion engines
Inventor: BARNARD CHARLES FREDERICK
IPC: F02B11/00
Filed: 1954-10-29
Abstract: 796,014. Dual-fuel engines. MIRRLEES, BICKERTON & DAY, Ltd. Oct. 31, 1955 [Oct. 29, 1954], No.'31335/54. Class 7(2) In a four-stroke engine having one or more inlet valves 1a, Fig. 1, and exhaust valves 2a, a gas inlet valve 3a, a spark plug 4 and a water-cooled fuel injector 5, change from operation with gas and spark ignition to operation with oil is effected with the engine running or stationary. A lever 8, Fig. 2, operated either manually or automatically in dependence on the gas pressure or the loading of a pump or electric generator driven by the engine, is turned through 180 degrees to turn a disc 7 and bring one of a pair of rollers 2, 12 linked thereto into operation in place of the other to transmit the movements of a governor-actuated lever 6 either to a lever 9 actuating a fuel pump rack rod 10 or to a bell crank 1 actuating an air and a gas throttle valve control shaft 13. When running on oil, the gas throttle valve remains closed and the air throttle valve fully open. When running on gas, the fuel pump cam followers are lifted clear of their cams and water is circulated continuously through the fuel injector 5. Inlet air passes over the spark plug 4 to cool it. The Provisional Specification refers to the use of starter and relief valves and maximum pressure indicators, to disconnection of the spark plug circuit when running as a compressionignition engine on oil, and to running partly on gas and partly on oil for ignition of the gas, the governor acting on the oil control linkage only.
Patent GB-171885-A (GB)
Title: An improvement relating to a venetian blind
IPC: E06B9/384
Filed: 1920-11-06
Abstract: 171,885. Ellison, C. Nov. 6, 1920. Venetian blinds.- A device for closing up the laths of a Venetian blind above a certain lath is provided at each end of that lath and comprises a block A tacked to the tapes and having a slot D through which the operating-cord of the blind passes, the cord being clipped bv a pivoted member C operating under a bridge-piece B. A pivoted wire catch E holds the member C in clipping position.
Patent GB-941498-A (GB)
Title: Improvements in and relating to homocysteic acid
IPC: C07D233/76
Filed: 1961-08-31
Abstract: Homocysteic acid (a -amino-g -sulphobutyric acid) is prepared by reacting acrolein with NaHSO2 in an aqueous medium, reacting the resulting solution with substances providing cyanide ions, carbonate ions and ammonium ions to form 5-(b -sulphoethyl) hydantoin, hydrolysing and if necessary, acidifying the hydrolysate.
Patent GB-730367-A (GB)
Title: Transmission device for motor auxiliaries for pedal-operated bicycles or other vehicles
IPC: B62M9/00
Filed: 1953-11-13
Abstract: 730,367. Automatic clutches. GILARDI, C. Nov. 13, 1953 [Nov. 19, 1952], No. 31537/53, Class 80 (2). In transmission mechanism for motor-assisted pedal cycles the motor shaft 2 at a predetermined speed is connected by centrifugal clutch members 13 to the friction roller 1 engaging a wheel. Free-wheel clutch rollers 30 between the roller supporting sleeve 10 and the shaft 2 permit the engine to be started by moving the bicycle pedals or the vehicle. The clutch members 13 engage a drum 9 fixed to the sleeve 10 and are carried on pivots 12 on a plate 11 fixed to the sleeve 5. The pivots 12 have spring-pressed friction washers 56. The rollers 30 engage inclined tracks on the sleeve 10 and a ring 51 free on the sleeve 5. A shockabsorber between the free wheel and the motor shaft 2 comprises a torsion spring 53 fixed at one end to a ring 51 and at the other end to a ring 50 keyed on the sleeve 5. In a modification the shock absorber comprises spring- engaged inclined dog teeth formed on the ring 51 and on a sleeve. In another modification the shock absorber and the friction washers 56 are omitted.
Patent GB-604066-A (GB)
Title: Apparatus and method for manufacturing integral finned tubing
IPC: B21C37/20
Filed: 1945-11-22
Abstract: 604,066. Rolling ribbed tubes. CALUMET & HECLA CONSOLIDATED COPPER CO. Nov. 22, 1945, No. 31548. Convention date, Sept. 14, 1942. [Classes 83 (ii) and 83 (iv)] Skew-rolling.-In means for making integral finned tubing in which the fins are raised by rolls arranged about the periphery of the work one or more of the rolls are radially withdrawn to reduce or discontinue the. finning operation on a portion of the tube. Each roll end is journalled in a pivoted bearing 22 slidable in radial guides 20 in end plates 17. Adjustment of the end plates skews the rolls according to the pitch of the fins. The bearings are connected by adjustable screws 36 to the rams 35 of fluid-pressure cylinders 33 and operated by a valve 38 to withdraw the rolls from the tube. One roll only may be retracted.
Patent GB-1321286-A (GB)
Title: Protecting the electrical properties of a reuseable photoconductor
IPC: G03G9/135
Filed: 1970-06-30
Abstract: 1321286 Electro-photography XEROX CORP 30 June 1970 [1 July 1969] 31550/70 Heading G2H In a cyclic xerographic process, a drum having a photo-conductive surface (e.g. of selenium) is treated with a Lewis acid or base (depending on charge polarity) to stabilise the electrical properties of the recycling photo-conductive surface and enable effective cleaning between each cycle. The acid or base may be included in a liquid developer or applied after transfer of the developed image, and is preferably smeared over the drum's surface and then removed using a web or absorbent cotton. Specified acids and bases are crystal violet, malachite green, pararosaniline, basic fuchsin, rhodamine B, iosin, erthrosine, fluoroscein, nigrosine, aniline black, tetraphenyl porphine, copper chlorophyllin, methylene blue, thionine, triphenylamine, anthracene, pyrene, fluorene, acridene, carbazole, anthrazol blue, napthol blue black, benzoazurin, 2, 4, 7-trinitrofluorenone, tetrachloro phthalic anhydride, chloranil, fluoranil, anthraquinone, and 2-dicyanomethylene-1, 3- inanedione. Developer carrier liquids, pigments, dispersants and proportions are specified.
Patent GB-742632-A (GB)
Title: Improvements in or relating to devices for controlling the mean frequency of frequency-modulated oscillators
IPC: H03C3/09
Filed: 1953-11-13
Abstract: 742,632. Automatic frequency control systems. COMPAGNIE GENERALE DE TELEGRAPHIE SANS FIL. Nov. 13, 1953 [Nov. 15, 1952], No. 31571/53. Class 38 (4). A klystron oscillator is frequency modulated about the frequency at which it gives maximum power output and any deviations of this mean frequency is detected by deriving pulses I from a peak detector (not shown) at the instant of maximum output power during the frequency modulation and applying them to a shunt diode circuit Z3 to unblock a diode integrator circuit Z2, normally short circuited by the shunt circuit Z3, in series with which the modulation M is applied and whose output is thus the amplitude of the modulating voltage at the instant of maximum R.F, output from the klystron oscillator. This is compared with one half the maximum amplitude of modulation derived from applying the modulating voltage M also to a peak detector circuit Z1 having a potential divider output R1, R1 and the difference of the two amplitudes, after amplification in a stage Z4, is retroactively applied to the klystron reflector electrode to restore the correct mean frequency. The modulation M may be a linear saw-tooth wave and the oscillator used for frequency modulated radar or as a wobbulator.
Patent GB-520842-A (GB)
Title: Improvements in or relating to electric frequency changers
IPC: H03B19/10
Filed: 1938-11-01
Abstract: 520,842. Frequency changing. ERICSSON TELEPHONES, Ltd., and HOPWOOD, F. W. Nov. 1, 1938, No. 31584. [Class 38 (ii)] [Also in Group XL] A basic sinusoidal alternating current supplied to a tranformer T is distorted to a square topped wave by rectifiers R1, R2, either diodes or static contact type, feeding impedances Z1, Z2 which are small compared with an impedance Z3 in series with a' biassing battery BA. The output from across the impedances Z1, Z2 is rich in harmonics which can be separated by filter circuits. The square topped wave may be amplified by a pentode valve, and even harmonics may be separated before amplification by a bridge rectifier.
Patent GB-1305688-A (GB)
IPC: H01B11/00
Filed: 1971-07-06
Abstract: 1305688 Data transmission cable KABELUND METALLWERKE GUTEHOFFNUNGSHUTTE AG 6 July 1971 [9 July 1970] 31629/71 Heading H1A A data transmission cable Fig. 1 has pairs of conductors 1 surrounded by common screen 2 and a screen 3 common to all such screened pairs, the thickness of the conductive material of the screens being between 35 and 65 microns. The screens may comprise a layer of aluminium applied to a synthetic resin material carrier, e.g. polyethylene or a varnish. An outer protective sheath 4 is applied to the cable.