baber/WOPTO huggingface dataset:
Patent GB-1463420-A (GB)
Title: Multiplication apparatus
IPC: G06F7/48
Filed: 1974-07-03
Abstract: 1463420 Multiplication apparatus RCA CORPORATION 3 July 1974 [9 July 19731 29450/74 Heading G4A Apparatus for forming the calculation z 1  + z 2 .w k  where z 1 , z 2  are complex numbers in floating point form z 1  = (a+ib)2<SP>m</SP>, z 2 =(x+iy).2<SP>m</SP> and w k  is a complex constant in fixed point form c+id includes a complex multiplier 20 (Fig. 2) receiving in binary coded form the values a, b, c and d, an exponent controller 26 receiving the values m, n and controlling a first sealer 23 connected to the output of the multiplier and a second sealer 24 receiving the values x, y. An adder 28 is connected to the outputs of the sealers to provide signals representing the complex sum and the carry CAC of the modified numbers and an adder 21 responsive to the carry signal CAC provides an output exponent signal m<SP>1</SP> = max (m<SP>11</SP>, n) + CAC where max (m<SP>11</SP>, n) indicates the maximum of m<SP>11</SP> and n where m<SP>11</SP> = m + CMO (CMO being the complex multiplier overflow). As described the calculation z 1  - z 2 .w k  may also be performed in which case a complex borrow signal CSB is generated and fed to a second adder 22. The exponent controller 26 operates on one or other sealer 23, 24 to shift the bits of the value with the smaller exponent to the right by an amount equal to the difference between the exponents (the exponent m being increased by one if a signal CMO exists. Complex multiplier.-This comprises 4 multipliers (30-33, Fig. 3, not shown) each receiving one of the pairs of signals a, c; b, d; a, d; b, a, without their associates sign bits, the sign bits being fed by exclusive Or gates (301, 311, 321, 331) to sign control circuitry (302, 312, 322, 332) at the outputs of the multiplier and also to a subtractor (34) (producing the signal ac - bd) and an adder (36) producing the signal ad + bc). The signal CMO is derived from Or gate (35) receiving at its input the borrow signal from the subtractor (34) and the carry signal from the adder (36). Negative numbers may be represented in ones or twos complement form. Sealer (Fig. 8, not shown).-This comprises three sets of pairs of And gates, one pair for each input bit (and one set for each difference bit). If a difference bit is "zero" the data is fed through an And gate associated with its level, i.e. the jth bit passes through jth gate but if a difference bit is "one" the data passes through the gate j- D where D is the value of the difference bit, i.e. if the difference bit 2<SP>2</SP>, 2<SP>1</SP> or 2‹ exists, the data is shifted down 4, 2 or 1 places respectively.
Patent GB-1210092-A (GB)
Title: Improvements relating to aircraft
Inventor: RAWCLIFFE ANTONY GEORGE
IPC: F42B10/64
Filed: 1967-06-26
Abstract: 1,210,092. Controlling missiles. BRITISH AIRCRAFT CORP. Ltd. 25 June, 1968 [26 June, 1967], No. 29452/67. Heading B7G. [Also in Division F2] A missile provided with two pairs of mutually perpendicular fins, each of which has a gas discharge outlet in its trailing edge has a remotely controlled fluid-switching device to cause gas discharged from the outlet to deflect to one side or the other of the fin thereby setting up circulation and a lateral control force. The body 10 carries four control fins 12, set at zero incidence and each provided with a jet pump 14 which feeds a duct 20 and a tapped outlet 22 which divides into two ducts 26, 28, respectively restricted at 30, 32 and divided to supply nozzles 34, 36 and inlets 38, 40 to a fluid switching device 24. The flow from duct 20 passes over switch 24 and leaves by one of two slots 46, 48 located adjacent the trailing edge 50 of the fin. The vane 42 of switch 24 is operated by remote control to close either nozzle 34 or 36 or it may oscillate continuously with variable dwell times.
Patent GB-996000-A (GB)
Title: Improvements in or relating to means for coupling implements to tractors
Inventor: MURRAY JOHN BAIRD
IPC: B60R21/13
Filed: 1960-08-26
Abstract: 996,000. Tractor-trailer hitches; tractor hoods. MASSEY-FERGUSON-PERKINS Ltd. Oct. 9, 1961 [Aug. 26, 1960], No. 29509/60. Headings B7B and B7T. A tractor cab frame comprises members 10, 11 joined by transverse members 12, 13, 15, members 16, 17 joined by member 18, and struts 22 connected to the rear axle and to stiffeners 21 fixed to 10 and 11. Brackets 26 and 28 provided with holes 27, 29, and a bottom bearing 30, engage respectively plates 44, 47 provided with locating pins 45, 48, and the end 72 of a shaft 40, which shaft has bearings 41, 42 and is held in the vertical position shown in Fig. 3 to provide support for an agricultural implement such as a hedge cutter which is pivotally connected to a bracket 55 welded to the shaft. Clevis brackets 34, 35 on the member 15 support an hydraulic jack (not shown) which may swing the shaft 40 by engaging a rotatably adjustable arm 52 bolted to a flange 51 on the shaft. The swing of the shaft is limited by engagement of the head of a rotatably adjustable arm 60 with rubber pads 65, 67 mounted on a bar 62 which passes through a hole 61 in the head and is pivoted to a clevis 36. The shaft 40 may be mounted on one or the other side of the tractor.
Patent GB-502268-A (GB)
Title: Improved feeder for poultry
IPC: A01K5/02
Filed: 1937-10-29
Abstract: 502,268. Feeding - appliances for animals. BROWN, F. D. MORAY-. Oct. 29, 1937, No. 29595. [Class 5 (ii)] In an automatic feeder for poultry, a bung 10 connected to a cord 11 wound on the arbor 9 of an alarm clock 7 in a food container 2 normally closes an aperture 6 in the conical lower part 5 of the container. At a predetermined time, the bung is raised, and the grain falls on a spreader 12 raised above the ground by legs 1 secured to the spreader and supporting the container. The bell 14 of the alarm clock is secured to the apex of the spreader.
Patent GB-1196823-A (GB)
Title: Electrical Generator for Energizing a Source of Ultrasonic Energy.
IPC: B06B1/02
Filed: 1968-06-21
Abstract: 1,196,823. Oscillators. BRANSON INSTRUMENTS Inc. 21 June, 1968 [7 July, 1967], No. 29665/68. Heading H3T. A transistor 34 is connected in series with a D.C. source 30, an oscillatory load circuit which has a predominantly capacitive load characteristic and which provides feedback to the transistor to make it oscillate, and a saturable reactor 32 which serves to delay current flow through the transistor until the latter saturates. For the remainder of each period of conduction of the transistor, the reactor is saturated. The leading current which would otherwise flow through the transistor due to the capacitive load would produce excessive power dissipation in the transistor during the time (#t, Fig. 3, not shown) before the transistor saturation voltage is reached. Switching speed would also be reduced. The load circuit contains a piezo-electric transducer 12 to be driven at ultrasonic frequency for use in a cleaning plant, and also a capacitor 28 and inductance 20, all of which components determine the frequency of the oscillator. The load circuit further contains a transformer 24 having four windings, one of which 36 provides the feedback, one 40 reflects a load into the oscillatory circuit when the transistor 34 is non conductive, and the other two 22, 26 are connected in opposition to the capacitor 28 and transducer 12 respectively, whereby the difference between their currents is applied by feedback winding 36 to the transistor 34.
Patent GB-443607-A (GB)
Title: Improvements in, or relating to, electrical ceiling roses
IPC: H02G3/20
Filed: 1934-10-17
Abstract: 443,607. Ceiling - roses. CRABTREE, J. A., Endwood, Little Aston Park, Sutton Coldfield. Oct. 17, 1934, No. 29671. [Class 38 (i)] In a ceiling-rose comprising a terminal housing a and a moulded cover d<1> adapted to be secured to the ceiling by screws e, the housing is provided with through channels each receiving a terminal b which may be supported by the binding screw c resting on a part a<4> and manipulated through a lateral opening a<2>. A further binding screw c<1> can be operated through an opening a<3>.
Patent GB-445623-A (GB)
Title: Settee beds
IPC: A47C17/23
Filed: 1934-10-17
Abstract: 445,623. Bed-settees. THOMAS, J. R., 5939, South Bishop Street, Chicago, U.S.A. Oct. 17, 1934, No. 29719. [Class 52 (ii)] The folding frame of a bed-settee comprises sections which in the settee position are located at the seat, under the seat, and behind the back-rest, and which are connected by links and levers so that folding or unfolding of one section causes the whole frame to fold or unfold, and the links and levers form guiding and holding means, independent of the settee frame, which guide the sections into folded and extended positions and hold them in such positions. In the form shown in Figs. 1, 4 and 5, the frame comprises a seat section 6, a back section 7, and an under-the-seat section 8. The seat section 6 is connected to the settee frame by links 15, 17, pivoted at 18 and 19, the back section 7 being connected to section 6 by links 26, 27, and the end section 8 connected to the section 6 by links. Folding legs with rollers 38 are provided. In folding, the outer end of the section 8 is raised and pushed inwardly. The rear end of the seat section 6 rises, and the middle section passes under this section and up behind the back rest 2. The latter is loosely upholstered, but is thrust outwardly by that part of the spring interior mattress 10 associated with the section 7. In the settee position the seat section 6 is inverted. The part 12 of the mattress secured to the seat section is connected to the part 10 lying on the other sections 7 and 8 by a flap of such length as to permit the folding movement. In the form shown in Figs. 6 and 7 the inner bed section 51, connected to the fixed frame by links 56, 57, swings up behind the back 55, the middle section 52 lies below the seat, while the outer section 53 is inverted to form the seat. In a further modification, the end section moves over the middle section on links without inversion.
Patent GB-1084460-A (GB)
Title: Electro-magnetically operated gas valves
IPC: F16K31/06
Filed: 1966-07-01
Abstract: 1,084,460. Valves. DANFOSS A/S. July 1, 1966 [July 24, 1965], No. 29734/66. Heading F2V.  An electromagnetically operated valve has a diaphragm 14 attached to the valve spindle 9 and the housing to define a dashpot chamber 15 which communicates with the inlet 17 via an axial bore 16 in the spindle and a radial orifice 18. A spring 11 biases the valve member 10 to a closed position. In an alternative embodiment, Fig. 2 (not shown), the spindle (9) and core (8) are separate and biased into engagement with each other by springs (21, 24). Axial bore (16<SP>1</SP>) serves as the throttle in this case and the coil 7 may be energized by A.C. current. In either embodiment, the flow of gas through the valve may be reversed.
Patent GB-1038497-A (GB)
Title: Method and electric circuit for eliminating misleading electric signals in an apparatus for measuring and recording the speed of vehicles and the like
IPC: G01S13/92
Filed: 1963-07-26
Abstract: 1,038,497. Radar; transistor switching circuits. MULTANOVA A.G. July 26, 1963 [July 27, 1962], No. 29791/63. Addition to 1,000,737. Headings H3T and H4D. In the apparatus of Fig. 1 of the parent Specification the present addition comprises a detailed circuit for the unit 24, whereby the speed indicative signal is evaluated only if its voltage remains constant at least for the time delay of a delay circuit and the latter is re-set if the voltage alters in a time less than the time delay. A positive D.C. signal proportional to the speed indicative signal enters on line 20 from the rectifier 22 of the above Specification and the output of integrator 15 of the latter enters on line 25 as a negative voltage; the circuit output at A is fed to switch 28 in Fig. 1 of Specification 1,000,737. Transistors T1, T2, T3 are used as switches, transistors T2 and T3 being in parallel in the charging circuit of a capacitor C1 the discharge circuit of which incorporates transistor T1. The base of transistor T2 is connected to the output of a differentiator C2, R4 which is preceded by another differentiator C3, R5 the input of which is the aforementioned positive D.C. signal. A differentiator C4, R6 is interposed between line 25 and transistor T3. When no radar reflections are received, i.e. no signal on line 20, transistor T1 is conductive. As the voltage on line 20 increases, transistor T2 is blocked, capacitor C1 receives a negative voltage via diode D1 and transistor T1 becomes more conductive. If the signal on line 20 has reached a constant value, transistor T1 is blocked after the time delay imposed by the network R1, C1 and a control signal appears at the output point A for controlling the storage of wanted voltage signals. If the signal on line 20 increases or decreases within the time delay of network R1, C1, transistor T1 is rendered conductive; the output from A is blocked. A voltage-dependent network including diode D3 maintains the time-delay of network R1, C1 approximately constant even with high voltages on line 20.
Patent GB-324054-A (GB)
Title: Improvements in constant mesh variable speed gear
IPC: F16H63/30
Filed: 1928-10-16
Abstract: 324,054. Ward, J. Oct. 16, 1928. Variable-speed gearing comprises an epicyclic train with interengaging planets f, g which are adapted to be engaged alternatively by a driven annulus d for different ratios, or engaged simultaneously to produce a locked solid drive. In the arrangement shown, a sun gear a fast on driv. ing-shaft b gears constantly with planets f<1> fast on the same spindles as planets f but on the other side of carrier disc e. The changes are effected by sliding the loose disc e, and the planets f are gapped at f<4> to allow the planets g to engage alone with the annulus d on the driven shaft c. The position shown, with brake h applied to disc e. yields reversed drive. When annulus d engages planets g, a forward speed reduced below the solid locked drive is obtained. Another higher reduced speed may be obtained by driving disc e slowly by applying a brake j<1> to an annulus meshing with the planets f<1>. A still higher reduced drive may be obtained by driving the annulus slowly by applying a brake k<1> to an annulus k in an auxiliary train k, j<2>, m of which the sun gear m is fast on shaft b. Operation is effected by a sliding arcuate fork p with lateral arms s adapted to engage selectively brake-operating tappets t. An auxiliary friction clutch for facilitating the engagement of the toothed locking drive of the parts d, f, g is described.
Patent GB-864601-A (GB)
Title: Shutters for photographic cameras
IPC: G03B9/08
Filed: 1957-09-23
Abstract: 864,601. Photographic shutters. VOIGTLANDER A.G. Sept. 23, 1957 [Sept. 22, 1956], No. 29841/57. Class 98(1) A centrally opening photographic shutter of the roller blind type is characterized in that blind is an endless band disposed in front of the film and behind at least one lens element, passing around rollers disposed on opposite sides of the light path and having openings which overlap in the region of the light path to allow the passage of light. As shown, the band 1 passing over rollers 6, 7, 8 and 9, has apertures 2 and 3 which-on rotation of the rollers-may be brought into coincidence with light path halfway between the rollers 8 and 9. The rollers 6 and 7 have teeth 23 which engage apertures 22 of the band to obviate slipping. To the spindle of the roller 6 is attached a gear wheel 39 which meshes with a driving wheel 40 to which is fastened a locking disc 41 and both members are freely mounted on a shaft 42 to which one end of a spring 43 is anchored-the other resting on the disc 41. On the disc 41 is a lug 44 which co-operates with abutments 45, 46 on a slide 47 manually displaceable by means of the button 49 and urged upward by spring 50. The end 61 of the shaft 42 is connected to the camera film winding mechanism so that during winding the spring 43 is tensioned but the disc 41 held from rotation by the lug 45. On depression of the button 49 the disc 41 is released and the roller 6 is driven by the wheels 39 and 40 to rotate the blind 1. The motion continues until the lug 44 abuts the member 46. Variation of exposure is effected by the lug 44 engaging the arm 52 of a braking mechanism for part of its rotation predetermined by means of a setting member 55 co-operating with a cam 54. In another embodiment, there are no braking means and the torsion drive mechanism is incorporated within one of the rollers.
Patent GB-397326-A (GB)
Title: Improved dish washing machine
IPC: A47L15/32
Filed: 1932-10-25
Abstract: 397,326. Dish - washing machines. WOOD, W. S., 440, Chapel Road, Bankstown, near Sydney, New South Wales, Australia. Oct. 25, 1932, No. 29847. [Class 138 (i).] In a dish-washing machine of the kind comprising a container in which dish racks are rotated by the impingement on the dishes of sprays of cleansing fluid, means are provided whereby the direction of rotation of the racks is automatically reversed after a predetermined number of revolutions. In the construction shown in Figs. 1 and 3, a rack secured to a vertical spindle comprises spiders 20, 21, vertical rods 22, and bent holders 23 for plates and like articles. The holders, as shown in Fig. 3, are arranged in rows at right-angles to each other. The spindle carrying the rack is provided with a pinion 49 meshing with a graduated gear 48 which is pivotally mounted at 47 and has a roller 44 in engagement with a cam member 41. This member is secured to a shaft 31 provided with spraying nozzles 34. Each nozzle, Fig. 5, consists of a barrel 35 with a screwed cap 36. having a pinhole orifice 37. The barrel is cut away at one side where it is - fixed to the shaft 31 in proximity to an oblique slot 38 arranged to project liquid tangentially into the barrel. The pinion 49 actuating the gear 48, the roller 44 eventually operates the cam 41 to change the direction of the liquid issuing from the nozzles 34 whereby the rotation of the rack is reversed. The spider 20 carries a rack for cups and like articles, which consists of concentric rings and radial spokes. Liquid is supplied to the shaft 31 through a holder 50 for soap or soda. In a modified construction shown in Fig. 7, the shaft 18 carrying the rack is provided with an arm 60 having at one end a roller 63 adapted to engage a lever 61. The lever carries a roller 68 adapted for engagement with a cam 62 secured to the shaft which is fitted with the spraying nozzles. Assuming clockwise rotation of the arm 60, when the roller 63 leaves the lever 61 a spring 71 shifts the lever so that, on the next revolution of the shaft 18, the roller 63 engages the back of the lever moving it until it is stopped by an abutment 73. During this movement the roller 68 acts upon the cam 62 to alter the direction of the washing sprays. When several rotary racks are required, an arrangement as shown in Fig. 8 may be employed. Each rack, one only being shown, is mounted on a spindle, such as 18 A, which is provided with a trolley 78 running on a rail 75. The rack is traversed along the rail into a cabinet 9 A through an opening at the side until the spindle is positioned with the end 18B in a footstep bearing 83 and the middle part within a circular catch 81 formed by two leaf springs. The bearing 83 is an opening in a leaf spring 84 which is fixed at one end to the cabinet. With the spindle in position, the cleansing operation takes place, the reversal of the rack being effected in either of the ways already indicated. Afterwards the footstep bearing is disengaged, and the rack traversed until clear of the cabinet, to make room for a following rack.
Patent GB-533488-A (GB)
Title: Improvements in or relating to double installations for the projection of cinematographic pictures
IPC: G03B21/40
Filed: 1939-11-11
Abstract: 533,488. Kinematograph projectors. PHILIPS LAMPS, Ltd. Nov. 11, 1939, No. 29891. Convention date, Nov. 14, 1938. [Class 97 (i)] Two projectors having all control parts located on the same sides are arranged one vertically over the other ; they may be carried by a base and may be adapted for films having sound tracks. As shown, each projector comprises a motion head having a spool box 35 behind it, the projectors being carried by a base member 16, and the spool boxes being each provided with a partition 34 forming chambers for a feed spool 32 and a take-up spool 33. Each motion head may be carried by a plate rotatable by a knob 14 through gearing, and a sound roller 7 may be provided. A single door with a lever handle 19 may be provided for each spool box, and all the control members including the handles 19, a button 17 controlling sound intensity, and a sound change-over lever 18, may be on one side of the installation. The base member 16 may contain a sound amplifier. All the parts requiring no attention during normal running of the projectors may be on the other side of the installation, and removable covers may be provided therefor. Specification 511,094 is referred to.
Patent GB-769341-A (GB)
Title: Photographic objective for close-up exposures
IPC: G03B3/02
Filed: 1954-10-18
Abstract: 769,341. Lens mounts. KAMERABAUANSTALT. Oct. 18, 1954 [Dec. 3, 1953; June 26, 1954], No. 29934/54. Class 97(1) To allow of focusing of near and far objects in a photographic camera such as a single lens reflex camera the mirror of which permits only slight penetration of the objective into the camera housing, the objective mounting consists of a carrier for the objective 1 connected to a funnel member 10 carrying two coaxial tubes, 2 and 5 having between them a helical screw thread engaged by a corresponding thread on at.least one further tubular member 13 which, in the infinity position of the objective is located wholly within the space between the tubes 2 and 5 and which carries means for connecting the mount to the camera. In the device shown an additional tubular member 3 is provided the outward screwing movement of the mounting being limited by stops 9 and 15. A ring 12 is provided to operate the iris diaphragm 11 by way of the funnel member 10. The average diameter of the screw-threaded tubes is greater than the focal length of the objective. In a modification the member 3 is omitted.
Patent GB-286003-A (GB)
Title: Rotary mechanism for the transmission of power
IPC: F16H61/56
Filed: 1926-11-27
Abstract: 286,003. Coats, A. Nov. 27, 1926. Hydraulic transmission of power.- In mechanism comprising a primary vane wheel 8, Fig. 1, and a secondary vane wheel 9, guide vanes 11 - - 15 are positioned between the exit from the secondary wheel and the entrance to the primary wheel, the vanes 11 - - 14 each being pivoted near its entrance edge and arranged so that its exit edge overlaps the succeeding vane, and the vane 15 being fixed. The vanes are supported by a fixed sleeve 16, or by a member 16<1>, Fig. 4, which has a ratchet connection with the fixed sleeve 16. Conduits 19, 20 leading to an external vessel are connected to high and low pressure points of the circuit. Specification 249,199 is referred to.
Patent GB-280555-A (GB)
IPC: F02M1/00
Filed: 1927-11-09
Abstract: 280,555. Winterhoff, F. Nov. 12, 1926, [Convention date]. Vaporizers, external.- The mixture is heated by an electric heater e mounted on screws c projecting from a plate a of insulating material adapted to be secured between the carburettor and induction pipe flanges. The heater comprises a tube of insulating material surrounded by a heating coil, the ends of which are connected to terminals on the plate a.
Patent GB-1459649-A (GB)
Title: Trimarans
IPC: B63B1/14
Filed: 1974-07-08
Abstract: 1459649 Trimarans D C DAVY 22 May 1975 [8 July 1974] 30123/74 Heading B7A A trimaran 60 has a central hull 1, a pair of floats 2, 3 supported by outriggers 4, 5 and inboard supports 25 from which the floats can be supported in an inboard position, the outriggers being pivotally mounted on the central hull. The floats can be moved bodily along the outriggers until they are suspended from the inboard supports and then the outriggers can be pivoted about pins 26 so that they are positioned alongside the central hull.