baber/WOPTO huggingface dataset:
Patent GB-735901-A (GB)
Title: Improvements in or relating to hybrid junction arrangements for use on micro radio waves
Inventor: RAMSAY JOHN FORREST
IPC: H01Q15/24
Filed: 1953-02-06
Abstract: 735,901. Directive radio systems; frequency changers. MARCONI'S WIRELESS TELEGRAPH CO., Ltd. Jan. 22, 1954 [Feb. 6, 1953], No. 3477/53. Classes 40 (6) and 40 (7). A free space hybrid junction arrangement comprises two linearly polarized plane radio mirrors arranged in succession between the input and output ends of the hybrid junction with their directions of polarization and their planes inclined at predetermined angles to each other. Fig. 2 shows an arrangement wherein the planes of the mirrors M1 and M2 are parallel and their directions of polarization differ by 45 degrees. Incoming waves A and B travelling in directions making an angle of 90 degrees with each other and being linearly polarized at right angles in the directions shown respectively pass through and are reflected by M2 to reach M1. At M1 the horizontal components of the two waves are passed to give a difference signal at C and the vertical components reflected to give a sum signal at D. Such a system as that of Fig. 2 requires beams not too widely divergent or convergent and it may be convenient in some cases to introduce a lens (CL) between the mirrors as described with reference to Fig. 3 (not shown). This may be combined with the use of further lenses at the input and output ends of the junction, when beams are used having plane wave fronts. Such an arrangement (Fig. 4, not shown) functions in free space and accepts unguided waves. When the invention is used in the form of a radar transmitreceive arrangement (Fig. 5) waves from the transmitter primary element TM are polarized so as to be reflected completely by M1 and one component of the reflected wave is also reflected by M2. The component transmitted by M2 is reflected by a plane mirror M3 about #2#/<SP>3</SP> behind M2 and repasses through M2 to form a circularly polarized wave when combined with the other component. This circularly polarized wave is directively transmitted through metal lenses FL and WA. Returned echo signals, which will also be circularly polarized, passing through lenses WA and FL are -de-circularized by the M2, M3 combination and the linearly polarized wave so formed passes through M1 to receiving element RM. In a further embodiment of the invention (Figs. 6a and 6b, not shown) the inputs at one end of the junction are respectively the directionally received signal and the local oscillator signal and the outputs are sum and difference frequencies derived from the various elements of two two-dimensional matrices of primary elements. It is arranged that the signal from the local oscillator is received by all the elements of the matrices but that the directionally received signal is focused on only one element in each matrix; the particular element used being determined by the direction of the incoming signal. A similar embodiment with unidirectional (i.e. linear) matrices is described with reference to Fig. 7 (not shown).
Patent GB-296630-A (GB)
Title: Improvements in or relating to domestic fireplaces or stoves
IPC: F24B1/182
Filed: 1928-02-03
Abstract: 296,630. Wright, C., and Johnson & Wright, Ltd. Feb. 3, 1928. Combined open fireplaces and cooking-stoves; boilers, arrangement of.-In combination ranges in which a flue from the back of the grate passes beneath a side oven, or the lower of superposed side ovens, the entry to the flue slopes upwardly from the grate to prevent the accumulation of ash, and then turns sidewards to the oven. In the stove shown, the flue entry is formed in a base block 17 having a rear wall 18, a front wall 19 of lesser height and with a central gap forming the flue mouth, an inclined face 16 between the front and rear walls, and a side wall 20 which closes the flue on the side remote from the ovens. A boiler 25 with a stepped front portion 26 rests on the block as shown in Fig. 5. The gases pass from the flue thus formed beneath the boiler to a flue 7 beneath the lower of superposed ovens 5, and thence by an inclined flue 8 at the rear of the lower oven to flues 9 - - 11 around the upper oven. The boiler may be omitted, the fireback 2 being then extended downwardly to rest on the wall 19 of the block 17 and the top of the flue in the block being closed by a fire-tile.
Patent GB-284725-A (GB)
Title: Process for the production of cellulose membranes, bands and films
IPC: B29C48/08
Filed: 1928-02-04
Abstract: 284,725. Sindl, O. Feb. 5, 1927, [Convention date]. Apparatus for making films.-The cellulose solution is delivered, in the form of a film, from a nozzle 3 on to a moving sheet or film of coagulating-fluid supplied from a nozzle 2, so as to effect the coagulation of one side of the film only, whereby gases produced during the coagulation process can escape through the uncoagulated side of the film. The film of coagulating-liquid flows over an inclined surface 1 of glass, porcelain &c., and the partly-coagulated cellulose film 6 is passed into a bath 8 of the coagulating- liquid, conveniently by means of a roller 7, in order to complete the coagulation process.
Patent GB-677892-A (GB)
Title: Method and means for spinning textile yarns
IPC: D01H1/00
Filed: 1949-02-09
Abstract: 677,892. Spinning textile yarns. MULLER, K. Feb. 9, 1949, No. 3554/49. Drawings to Specification. Class 120(iii) Instead of drawing and twisting fibres in a single spinning machine, the drawing and twisting are effected separately, so that a fine sliver which has already been drawn to the final count, but has no twist, is delivered to the spinning machine where it is twisted only. An additional drawing group of preparing and drawing machines, machine may be introduced into the usual or a final drawing mechanism may be fitted to the last preparing machine. The fibres may be crimped between the final drawing and the twisting.
Patent GB-305366-A (GB)
Title: Improvements in or relating to machines for straightening metal sheets
IPC: B21C51/00
Filed: 1928-02-06
Abstract: 305,366. Furnival, H., and Furnival, F. S. Feb. 6, 1928. Stopping and starting arrangements. - A machine for straightening metal sheets is combined with a printing or branding cylinder which is automatically put into operation by each sheet as it leaves the last pair of straightening-rolls so that irregularly fed sheets may be straightened and printed in the same operation and separate hand or continuously rotating printing-mechanism thus avoided. The straightening-rolls a are connected by gearing to a ratchet wheel C loosely mounted on the shaft b<1>, to which is secured the printing-cyclinder B and a disc carrying a spring- pressed pawl D, which engages the ratchet wheel so as to effect the rotation of the cylinder. The pawl is normally held out of contact with the ratchet wheel by a weighted trip lever E which is held in position by a lever F connected by a rod f to a lever G. When the forward edge of the sheet engages one of a number of fingers H<1>, H<2>, H<3> loosely mounted on a shaft H and connected by springs h to collars K<1>, K<2>, K<3> fixed thereon, the shaft is rotated and a tappet wheel K thereon engages the lever G to withdraw the lever F from the trip lever E so as to allow the pawl to engage the ratchet wheel and rotate the cylinder. When the rear edge of the sheet leaves the fingers the levers G, F return to normal position with the trip lever E held by the lever F in forward position. The pawl D is thus released after one revolution of the cylinder which is thus put out of action. The face of the lever E is somewhat eccentric to the path of the pawl so that the pawl is released gradually from the ratchet wheel. The finger immediately succeeding the finger engaged by the sheet is restrained by contact with the underside of the sheet from moving when the shaft H is rotated but is pulled by its spring into correct position when the sheet has passed thereover. Ink is applied to the printing-cylinder by rollers M driven from the straightening-rollers.
Patent GB-833131-A (GB)
Title: Method of and apparatus for laying underwater tubeway segments and the like
Inventor: MAUNSELL GUY ANSON
IPC: E02D29/073
Filed: 1958-02-04
Abstract: 833,131. Constructing sub-aqueous tunnels. TUBEWAYS, OVERWAYS & PORTS Ltd. Nov. 18, 1958 [Feb. 4, 1958], No. 3617/58. Class 68(2) A method of, and apparatus for constructing a sub-aqueous tunnel in which pre-fabricated segments are laid in a trench which is excavated in sections as the construction proceeds. A hull H has a central well W which is also open at one side E. Each end of the hull is divided into compartments which can be flooded to ground the hull on the waterway bottom B, the two ends are joined by a section L and by a beam N which spans the entrance E. Three sides of the well are lined with shutters P sliding in guides R, and mounted on the deck are cranes operating grabs and gantries for handling tunnel segments. In operation the hull is grounded so that the entrance E overlaps the end of a previously laid tunnel section T. the shutters P are driven into the ground and the space enclosed excavated by grabs. A tunnel section S is then floated through the entrance E and flooded to sink it in the required position. The sinking is controlled by the gantries and when in position it is jointed underwater to the previous segment T and secured by piles to the bottom B. The trench is then filled with sand and earth overlaid with rubble.
Patent GB-560626-A (GB)
Title: Improvements relating to cold forging machines
IPC: B21K1/58
Filed: 1943-03-05
Abstract: 560,626. Clutches. NEWTON& CO., Ltd., L. H., and BOLLAND, W. E. March 5, 1943, No. 3639. [Class 80 (ii)] [Also in Group XXII] Multi blow cold heading machines for bolts &c. are arranged to operate upon blanks fed to the machine by hand, the machine being fitted with a one revolution clutch to provide a stop motion for the insertion of a fresh blank. The invention is described with reference to a two-blow machine in which the header slide e is operated from a crank on the shaft b through a toggle g thus giving two strokes per revolution. Punches k, k<1> are mounted in a slide j movable vertically on the end of the slide e the movement being derived from a cam n through a lever m. The blank p is introduced between the dies o either at the top or end to an extent determined by a stop w that is swung aside on the operation of the clutch by a shaft x having a cranked end engaging a cam g under the control of a torsion spring z. The movable die of the die o is moved laterally to grip the blank through toggle mechanism linked at r to a lever s operated by the cam t. The shaft b carries a disc 8 housed in part in a recess in a member 4 loose on the shaft and having mounted on a part of reduced diameter the driving fly wheel 2, drive being through friction washers controlled by a nut. A hollow bolt 9 containing a compression spring 18 is housed in a recess in the disc 8 and is normally held in retracted position by a lever 11 raised by a cam lever 14 under the action of a spring 17. A treadle 16 acts through linkage 15 to move the lever 14 to allow the spring 18 to advance the bolt into a notch 10 in the member 4 and receive drive from a hardened insert 19. Release of the treadle causes the levers 14, 11 to return to position to stop the shaft b after one revolution.
Patent GB-961773-A (GB)
Title: Metal spraying apparatus
Inventor: KEOHANE JOHN S
IPC: B05B7/16
Filed: 1962-01-31
Abstract: 961,773. Spraying fusible materials. BRENNAN LABORATORIES Inc. Jan. 31, 1962, No. 3641/62. Heading B2F. Relates to an apparatus for spraying metal whereby molten metal from an electrically heated receptacle, Fig. 1 (not shown), is fed by gravity through conduits 14, 19, 21, Fig. 3, of refractory material to a discharge outlet and is heated electrically by a coil during its flow. The flow is assisted by a stream of gas from an annular orifice 29 which is heated to a temperature above the metal melting point and melts metal which may have frozen in the conduit 21 and projects it in particulate form. A relatively cooler gas is fed from a pipe 39 to an annular chamber 38 through two diametrically opposite ducts 36 on to the particle carrying first stream, so cooling the metal particles to prevent burning of a material being coated, and producing a flattened spray configuration. The discharge temperature may be controlled by controlling the temperature of the hot gas passing through the orifice 29 and the relative temperature of the cooler gas. The spray head assembly parts are fitted together with engaging conical surfaces without rigid fastenings, to accommodate thermal expansion.
Patent GB-428809-A (GB)
Title: Improvements in and relating to route and destination indicators for vehicles
IPC: G09B29/06
Filed: 1934-02-05
Abstract: 428,809. Changing signs. FORREST, P. W., 1783, Shettleston Road, Shettleston, Glasgow. Feb. 5, 1934, Nos. 3655 and 33136. [Class 3 (i)] A drum carrying display matter, or around which moves a display band, has the operating electric motor mounted within it, and a switch is provided, operable by the motor shaft, which at each actuation automatically moves the drum through an angle sufficient to advance the display one step. Fig. 1 shows a drum 4 about which passes a non- endless band 5 which may have edge perforations to engage driving projections 41. The band is wound on and off two storage rollers 6, 7 carried by a spring- retracted bracket 8 slidable on pins 11 to maintain the band taut in spite of the varying effective diameters of the rollers 6, 7. The rollers 6, 7 are geared together by chain and sprockets 9, 10, and the pins 11 may be provided with anti-friction rollers. The switch mechanism comprises a cam 20, Fig. 6, fixed to the motor shaft 17 and serving to press out in succession three plungers 19 retracted by an elastic cord 21 &c. The plungers make contact with three spring- mounted points 22, 22<1>, 22<2>, and when the motor circuit is completed through the contact which is at the moment " made," the motor rotates till that contact is broken and the next contact is made, whereat the motor stops but is ready for re-starting when by some auxiliary means the current is diverted to this next " made " contact. A suitable means is shown in Fig. 8, and consists of a rotary handoperated member carrying a pin 29 adapted to contact in turn with three spring-pressed terminals 31. Pins may be provided on the rotary member to tilt a contact arm to control the excitation of the motor and its direction of rotation according to the sense in which the member is turned. Alternatively, a pin geared to the motor shaft rotates once for each traverse of the band and thereupon reverses a switch arm. In a modification the motor drives the drum 4 through a pin and star-wheel stop mechanism, as shown in Fig. 12. Two crank pins on a motor-driven shaft 44 engage the star-wheel 38 to move the drum through an angle of 60‹, a cam 45 on the crank-web face lifting a spring-pressed detent 49 from engagement with the star-wheel prior to each movement thereof. A second crank-pin on the shaft 44 rotates at half-speed, a second star-wheel having a similar cam-operated spring-pressed detent, and on the spindle of this star-wheel is a cam which makes and breaks two contacts through the medium of one or two spring- controlled plungers. An automatic switch may be provided comprising a plunger-operating cam constantly rotated by a separate motor. When carried by a vehicle having doors closed during travel the doors may control the device to display the name of the next station.
Patent GB-795831-A (GB)
Title: Improvements in or relating to telephone instruments
IPC: H04M1/738
Filed: 1956-02-06
Abstract: 795,831. Automatic exchange apparatus. TELEFONAKTIEBOLAGET L. M. ERICSSON. Feb. 6, 1956 [Feb. 17, 1955], No. 3671/56. Class 40 (4). In a telephone instrument a condenser is connected, by means of an impulse transmitter off-normal spring-set, either in series with a resistor to form a spark quenching circuit across the impulse contacts, or to one side of the telephone receiver to act as a D.C. blocking condenser. The condenser may also be connected over a switch hook AS to act as a ringing condenser for a bellset B as shown in Fig. 6. When the switch hook is released, the condenser is connected as a D.C. blocking condenser between line La and one side of receiver R. When the impulse transmitter is moved off-normal, dial contacts D unmask impulse contacts 12, 13 while putting the condenser and a resistance r1 across them. Fig. 8 shows a circuit in which the bell set B remains across the line with the switch hook AS released but is such as to draw only a small fraction of the current passing through the microphone M. Fig. 10 (not shown) depicts an alternative arrangement of microphone and receiver where the microphone is liable to open circuit. Fig. 11 (not shown) depicts an instrument with no bell-set which is normally by-passed over a switch hook in favour of another instrument. Figs. 1 to 5 and 9 (not shown) depict known arrangements in which separate condensers are used for quenching and blocking.
Patent GB-720685-A (GB)
Title: Improvements in or relating to coil winding machines
IPC: H01K3/04
Filed: 1953-02-10
Abstract: 720,685. Coiling. WESTINGHOUSE ELECTRIC INTERNATIONAL CO. Feb. 10, 1953 [March 29, 1952], No. 3675/53. Class 83 (4). A machine for wind. ing filament wire about a mandrel is characterized in that a heated pin is disposed in contact with the wire in the vicinity of the mandrel so that the wire, as it is wound, is heated by conduction and radiation of heat from said pin. Wire 41, from a spool 40 carried on a hollow shaft 39 of a coiling head 10 rotating in a pedestal 14, passes over guide rolls 52, 54 on a yoke 32 extending from a flywheel 22 of the coiling head, and between a heated pin 72 and a die 44, spring-urged thereagainst, to a non- rotatable mandrel 50 laterally reciprocable through the hollow shaft 39. The pin 72 is carried by a support 67 pivoted to extensions 68, 70, Fig. 2, of a nose 48 of the ceiling head and adjustably secured by a screw 65 to said nose. The pin 72 extends between a support member 76 on the support 67 and a support member 74 on, but insulated from, the support 67. The support member 74 is connected electrically to a brush 58, through a slip ring 20, lead 62, terminal post 60 and lead 78, the other support member being electrically connected to a brush 56 through a slip ring 16, a hollow shaft 12, flywheel 22, yoke 32 and support 67.
Patent GB-1523373-A (GB)
Title: Photocathode window assembly
IPC: H01J1/34
Filed: 1976-01-30
Abstract: 1523373 Cathode materials and processing PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 30 Jan 1976 [4 Feb 1975] 03747/76 Heading H1D A window photocathode assembly, sensitive in the near I.R., e.g. for a photo-electron multiplier tube, comprises a monocrystalline oxide window 1, e.g. corundum, carrying a P-type III-V compound photocathode 8, bonded to the window with a BaO or CaO, B 2 O 3 , Al 2 O 3  glass. The window, surrounded with a deposited conductor (Fig. 4, not shown) on a Ni-Au metallized ring 2 or with a solid ring (Figs. 3 or 5, not shown) carries on its inner face 3 a layer of glass 4 carrying connecting strips 5. The photocathode assembly comprises a temporary support 6 of N-type (Ga, In)As coated epitaxially with a similar layer of graded composition. The sensitive layer 8 comprises P- type (Ga, In)As of fixed composition which is in turn covered with passivating layers 9, 10, layer 9 being epitaxial large gap P-type (Ga, In)P matching layer 8 in expansivity, while layer 10 is of silicon oxide formed by cracking silane. Layer 10 is placed against glass layer 4 and the bond is completed by heating to 620- 650‹ C. under pressure in a neutral atmosphere (Fig. 2, not shown). Layers 8 and 9 are subsequently removed by etching (Fig. 3, not shown).
Patent GB-1191572-A (GB)
Title: A Compression-Ignition Type Engine.
IPC: F02B75/02
Filed: 1968-01-24
Abstract: 1,191,572. Two stroke engines. FAIRBANKS MORSE Inc. Jan. 24, 1968 [March 21, 1967], No.3788/68. Heading F1B. In an opposed piston engine having coaxial cylinder liners 10, 11 of different diameters and respective pistons 19, 23 controlling air inlet ports 30 and exhaust ports 36, respectively, the inlet ports impart a helical flow to the air and the majority of the exhaust ports communicate with one exhaust passage 60 and remaining exhaust ports communicate with a second exhaust passage 61. A partition 70 separates the two exhaust passages 60, 61 and the ribs defining the ports b to h have their longitudinal axes 93 at angles # between 18 degrees and 25 degrees to the radial lines intersecting the longitudinal axes at the inner sides of the ribs so that the ports are directed generally in the direction 73 of exhaust flow in the cylinder. The ports I and m are defined by ribs at angles between 18 degrees and 25 degrees to the radial lines but on opposite sides of the radial lines to the angles of the ribs defining ports b to h. The passages 60, 61 are volute shaped and their height and width dimensions increase from the partition 70. The exhaust gases are fed to a turbocharger 48 supplying air to the air inlet manifold 42. The ribs defining the air inlet ports 30 have their longitudinal axes at an angle 6, Fig. 2 (not shown), between 18 degrees and 25 degrees to the radial lines intersecting the longitudinal axes at the inner edges of the ribs. The two crank-shafts 22, 26 are inter-connected, e.g. by gearing, and the piston 23 is arranged to have a stroke half that of piston 19. The stroke of piston 23 may lead that of piston 19.
Patent GB-1182791-A (GB)
Title: Stabilisers for Borehole Drilling.
Inventor: WHITTLE FRANK
IPC: E21B17/10
Filed: 1967-01-25
Abstract: 1,182,791. Drilling. BRISTOL SIDDELEY ENGINES Ltd. and F. WHITTLE. 22 Jan., 1968 [25 Jan., 1967], No. 3803/67. Heading E1F. A stabiliser for use in a drill string comprises two members 10 and 11 coupled together with rotary lost motion and spacer elements 31 carried by one member and movable between radially retracted and extended positions in response to relative rotary motion of the members. Elements 31 are mounted on spindles 21 extending between annular portions 17 and 18 of the member 11. The elements 31 are cammed outwardly by wing-shaped cams (14) (Fig. 3) on member 10 when member 10 starts to rotate. When member 10 stops rotating, and the drill bit is raised thus reducing the pressure between flange 13 of member 10 and annular portion 17 adjacent thereto, torsion bars 25 inside spindles 21 cause the spindles to rotate to move elements 31 inwardly. Each pair of elements 31 carry a roller 33 of steel faced with tungsten carbide, or rubber. The stabiliser may be positioned betweeen a "turbine output sub" and an "inertia sub" or between the latter and a "cross-over sub" immediately above the drill bit.