baber/WOPTO huggingface dataset:
Patent GB-890159-A (GB)
Title: Improvements in or relating to printing machines
IPC: B65H15/00
Filed: 1959-04-03
Abstract: 890,159. Printing machines. ROLAND OFFSETMASCHINENFABRIK FABER & SCHLEICHER A.G. April 3, 1959 [April 5, 1958], No. 11396/59. Class 100(2) In a perfecting sheet printing machine wherein two or more printing units each for printing the sheets on one side only are so arranged that the sheets travel through the units in opposite directions but along substantially parallel paths, the delivery end of the first unit is placed substantially adjacent to the feeding end of the following unit and a device transfers the sheets from the delivery end of the first unit to the feeding end of the following unit in a reverse-faced position but leading by the same sheet end. As shown a rotary perfecting machine has two twocolour offset printing units 20, 23. Sheets from a stack 1 are fed into the unit 23 and there printed on one side. Each sheet is then carried by a gripper chain 5 beneath the inking mechanism 6 of the unit 23 to a cam-operated, oscillating feeder 12 having a gripper 13 which transfers the sheet from the gripper chain 5 to one of a number of gripper bars 15 mounted between endless chains 16, 17. The chains 16, 17 pass over chain wheels 18 adjacent to the oscillating feeder 12 and chain wheels 19 adjacent to a feed table 21 for the printing unit 20. The sheets 22 hang down from the grippers 15 and are dried by a drying device 24 before being deposited, printed side down, on the table 21 whence they are fed into the unit 20 and printed on the reverse side. The sheets are taken from the impression cylinder of the unit 20 by a chain conveyer which passes beneath the inking device of the unit 20 and deposits the sheets on a stack 25. The chain wheels 18, 19 are driven step by step in synchronism with the printing units 23, 20 respectively and owing to a sag in the lower runs of the chains 16, 17 it is unnecessary for the printing units always to operate in synchronism. The amount of sag in the chains is detected by a feeler 26 which is connected to means for controlling the running speeds of the printing units 20, 23 whereby the amount of sag is kept constant despite variations in the running speed of one or the other printing unit.
Patent GB-1394334-A (GB)
Title: Cross-polarized parabolic antenna
IPC: H01Q13/02
Filed: 1973-03-09
Abstract: 1394334 Aerials ANDREW CORP 9 March 1973 [24 March 1972] 11401/73 Heading H4A In a waveguide system for propagating crosspolarized waves comprising a circular waveguide and a pair of rectangular waveguides connected thereto, the central H-planes of both rectangular waveguides are aligned in a common radial plane at their points of connection to the circular waveguide. A 90 degrees polarization rotator is provided in the circular waveguide between said points of connection and comprises passive conductive means fixed in relation to said waveguide. As described, an aerial comprises a parabolic reflector or dish (Fig. 1, not shown) and a feed assembly 12, Fig. 2, consisting of a feed 14 having a radiating aperture at the focus of the parabola, and a pair of waveguides 16, 18 which support the feed and convey respective signals thereto. The waveguides extend through a vertex plate 20 at their inner ends and terminate in coupling flanges 22. They are formed with bends generally similar to conventional button-hook shaping but with their outer ends connecting transversely to the feed. Throughout their lengths their median H-planes are aligned in a common radial plane. The outer short side of each waveguide is covered with absorbent material. The feed 14 has a cylindrical body 28, Fig. 3, which is closed by a shorting cap 30 at its outer end and which has a radiating horn assembly 32 at its inner end. The horn mouth 34 is surrounded by a set-back choke and reflector 36 to improve the uniformity of illumination over the parabolic reflector. The polarization rotator between the waveguides 16, 18 is formed by a series of fixed closely spaced diametric conductive pins. A first pin 50 is inwardly adjacent to the waveguide 18, and is orthogonal to the polarization direction in that waveguide. Succeeding pins 52 are longitudinally spaced at small intervals and extend across the body 28 at successive small progressive angles until a pin 54, which is perpendicular to the pin 50. Further pins 56 are parallel to the pin 54. There is thus provided a polarization rotator which twists the plane of polarization of the signal from the waveguide 18 relative to that of the signal from the waveguide 16. The pins 56 serve to stabilize the rotation. There are also provided pins 42, 44 which are parallel to the pins 56, and which are located off-centre and away from the horn mouth 34 in relation to the respective waveguides 18, 16. The pins 42, 44 direct radiation towards the horn mouth 34. Tuning screws 58 are provided for optimization of performance. As an alternative to using pins in the polarization rotator a continuous vane or foil may be provided.
Patent GB-115118-A (GB)
IPC: A01B73/00
Abstract: 115,118. Burg, M., and Stock Motorpflug Akt.-Ges. May 21, 1917. Ploughs.-To facilitate turning and to reduce the wheel base when travelling along narrow roads, the rear steering wheel 2 of a motor-plough or the like is transferable from the working position A on the offside of the beam 1, to the inner side B where it is attached farther forward towards the front wheels. The wheel 2 is carried by a vertical shaft 4 actuated through an arm 6 by an operating rod 5 for steering purposes, and mounted in bearings 7 integral with the heightadjusting rack 8 in known manner. When ploughing, the wheel is located on the off side of the plough beam 1, the rack 8 being supported in a casing 9. For travelling purposes, the wheel is transferred to the inner side of the frame 1, the rack being arranged in a casing 10, 11, 12 located farther forward, and the steering arm 6 reconnected to the operating rod 5, by means of a clamp 14 and ball joint 15.
Patent GB-198526-A (GB)
Title: Improvements in axle-truck frames for railway and like vehicles
IPC: B61F3/08
Filed: 1922-04-25
Abstract: 198,526. Pflager, H. M. April 25, 1922. Axle-trucks and bogies.-In a truck frame for a railway vehicle formed in a one-piece casting, the horn plates and the middle and end transoms are all substantially channel-shaped in crosssection. The truck body or frame consists of a one-piece casting including integral side frames 5, end transoms 6, middle transoms 7, horn plates 8, spring caps 9, and longitudinal members 10 extending between transoms 6 and 7 to take the draft gear. Integral lugs 12, 14 and 16 support the brake beams.
Patent GB-551892-A (GB)
Title: Improvements in or relating to couplings for transmitting torques
IPC: F16D7/02
Filed: 1941-09-11
Abstract: 551,892. Slipping-clutches. SULZER FRERES SOC. ANON. Sept. 11, 1941, No. 11638. Convention date, Nov. 8, 1940. [Class 80 (ii)] A clutch which slips upon overload comprises friction plates 8 splined to a drum 6 fixed to a gear wheel 2 and co-acting friction plates 5 splined to a spider 4, the plates 5, 8 being pressed together by annular members 10 under the action of springs 11. A pair of axially movable concentric rings A, B engage one another by inclined teeth 13, 14 and are splined to a hub 3 on a shaft 1 and to the spider 4 respectively by teeth 17 .. 20. In operation, torque is transmitted to the spider 4 from the shaft 1 through the rings A, B which, due to the inclined teeth 13, 14, tend to separate the annular members 10. If the torque exceeds a predetermined amount the members 10 move apart and the clutch plates 5, 8 slip. To prevent overheating of the parts easily fusible material 9 is inserted between some of the plates 5, or the friction surfaces may be of such material. Heating up of the dutch then causes the fusible material to be melted and discharged whereupon the annular members 10 are pressed against the side faces of the spider 4, the clearance between the clutch members being great enough, due to the escape of the fusible material, to prevent further clutch engagement. Instead of an easily fusible material a material which breaks up into small particles upon a rise of temperature may be used. The teeth 13, 14 may be axial and the teeth 17 ... 20 inclined.
Patent GB-555440-A (GB)
Title: Improvements in and relating to hoppers for feeding powdered or granular materials
IPC: B01J8/00
Filed: 1942-02-12
Abstract: 555,440. Feeding hoppers. HARTLEY, C. J. Feb. 12, 1942, No. 11666/43. Divided out of 555,325. [Class 78 (i)] A feed hopper o for powdered or granular material has a restricted outlet o<SP>2</SP> from which the material is fed slowly by a screw r on a vertical shaft q having stirring arms s disposed at different heights in a cylindrical portion of the hopper. The shaft q is driven through worm gear t from a motor (not shown). The hopper has a cover n and is fed by a side shoot p. The hopper may be used with the mixing machine described in Specification 555,325, [Group II].
Patent GB-883547-A (GB)
Title: Improvements in and relating to the use of extended surfaces in heat transfer apparatus
IPC: F28F1/42
Filed: 1958-04-12
Abstract: 883,547. Making heat exchange tubes; brazing. LAUGHTON, J. M. April 9, 1959 [April 12, 1958], No. 11695/58. Classes 83 (2) and 83 (4). [Also in Group XIII] A heat exchange tube comprises a plurality of short longitudinal fins 11 adjacent ones of which in the longitudinal direction are displaced circumferentially. The tube may be formed by using a series of sleeves each the width of a fin and having a plurality of fins disposed around them or may be formed from a sheet from which the fins are punched to project at right angles, the sheet then being wrapped around the tube. Alternatively the fins may be bonded directly on to the tube or sheet. The fins may extend internally or externally of the tube and may be tapered or have parallel sides. The contacting surfaces are coated with copper and flux and heated to effect brazing. The bonding may be effected by soldering, silver soldering, brazing or resistance welding.
Patent GB-103615-A (GB)
Title: Improvements in and relating to Pneumatic Wheels applicable as Road Wheels to Motor Vehicles, Motor Cycles, Cycles, or to other Vehicles.
Inventor: WILLOUGHBY WILLIAM
IPC: B60B9/28
Filed: 1916-08-21
Abstract: 103,615. Willoughby, W. Aug. 21, 1916. Spring wheels with continuous outer rigid ring and pneumatic hubs.-An inner disk-wheel member 1 has a rigid hollow hub chamber 5 communicating through apertures 6, which may be fitted with valves 7, with radial cylinders 2. Pistons with flexible cups 14 are connected to bosses 18 on an outer rigid rim 3 by links 16 pivoted at both ends. Plates or rods 21 fixed to the rim and carrying rollers 22 engage within recesses 20 in the inner member. Flexible shields 26 cover the open ends of the cylinders and the links. Disk-like dust-shields 27 with central clearances are secured to the rim and overlap the central member. Specifications 17967/07, 20033/10, 20541/12, and 28184/13 are referred to.
Patent GB-316119-A (GB)
Title: Improved process of obtaining from seaweed a stable form of alginic acid and its compounds
Filed: 1928-04-23
Abstract: 316,119. Reynard, O. April 23, 1928. Alginic acid and its salts are prepared by leaching seaweed, boiling it with an alkaline solution for not more than one hour, grinding the pulp so obtained in a centrifugal mill fitted with fine screens, diluting it with hot water to a weight from eight to ten times that of the raw seaweed, within four hours from the start of the alkaline treatment. The filtrate is run through a cooling device into a precipitant such as calcium chloride solution, and the insoluble alginate is separated, washed, compressed into thin films, and dried until it contains not more than one half per cent of moisture. From these films alginic acid may be prepared by the action of concentrated hydrochloric acid, or sodium or potassium alginates may be obtained by treating them with the alkali carbonates. Alginates of sodium, potassium, or ammonium, or other alginates may also be prepared from the alginic acid by known methods. Specifications 142/81, 13433/84 and 8075/98 are referred to.
Patent GB-1315732-A (GB)
Title: Differential pressure transducer for liquid metals
IPC: G01L11/00
Filed: 1971-04-28
Abstract: 1315732 Measuring pressure electrically MINE SAFETY APPLIANCES CO 28 April 1971 [15 June 1970] 11967/71 Heading G1N [Also in Division H1] A differential pressure transducer for use with liquid metals comprises a chamber divided into two compartments 7 and 9 by a bellows 5, the compartment 7 being connected with the liquid at high pressure, and the compartment 9 being connected with the liquid at low pressure through a conduit 10 which includes an electromagnetic pump. Movement of the bellows moves a core 13 of transformer whose output signal on lines 19 causes controller 20 to vary the tapping of a transformer 21 and hence the D.C. supplied to the energizing windings 27, 28 of the pump to pump liquid in to the chamber 9 until the initial position of the bellows is restored. The current so drawn is measured on an ammeter 23 which may be calibrated in terms of pressure. The transformer core and windings may be clad in stainless steel to protect them against the liquid which may be alkali metal.
Patent GB-205046-A (GB)
IPC: C22B34/36
Filed: 1923-05-03
Abstract: 205,046. Soc. Anon. des Brevets Berthet. Oct. 3, 1922, [Convention date] Dry processes of extracting refractory metals.- Tungsten, molybdenum, or other metal having a high melting-point is produced by gradually introducing a powder containing the metal into the crater of an electric arc, struck in a non-oxidizing atmosphere, between metal electrodes b, a, the feeding of the powder being regulated so that it melts in proportion to its delivery and becomes consolidated to the lower electrode and the separation of the electrodes being regulated in proportion to the feed to maintain the arc length constant. Tungsten may thus be produced from tungetic acid using tungsten electrodes and a hydrogen atmosphere. The feeding of the powder and separation of the electrodes is achieved by a motor f geared to a screw-conveyer d and a screw-and-nut motion j, i, as shown. A solenoid h, connected across the arc, operates the clutch p to throw the electrode operating mechanism out of gear when the arc reaches a certain length. The lower electrode is constantly rotated and constantly reciprocated by the motor f through the medium of the worm gear g and the crank gear u, f.
Patent GB-452808-A (GB)
Title: Improved paper-feeding apparatus for typewriters and like machines such as tabulating and calculating machines
IPC: B41J11/28
Filed: 1935-04-18
Abstract: 452,808. Typewriters &c. SHERMAN, J. Q., RR1 Philadelphia Drive, Dayton, Ohio, U.S.A. April 18, 1935, No. 12012. [Class 100 (iv)] Paper feeding and guiding arrangements.- The platen-roller is associated with pin-wheels and feed-rollers for alternative use in positively and frictionally feeding paper respectively; the pin-wheels being offset or eccentrically mounted with respect to the platenroller. In the apparatus shown in Fig. 2, pin-wheels 28 are mounted in a frame 21 arranged above the platen 1 and formed with paper-guides 21a, 24, forked ends 23 resting on the platen-shaft 2, and flanges 25 attached to the platen-carriage. The pin-wheel shaft 27 is geared to the platen by means of pinions 37, 38, 36. The pin-wheels are laterally adjustable on the shaft, and the pins 30 project through slots 29 in the paper-guide 21a, and slotted guides 35 which are laterally adjustable on a rod 33 secured to the frame. To prevent ready removal, the shaft 27 is mounted in slots in the frame and is retained by slidable catches 40. Feed-rollers 6, 7, co-operating with the platen, are carried by pivoted arms 17, 18, the arm 17 being in engagement with a stud 20 on the arm 18, and a bell-crank 15 having a roller 13 cooperating with a slot 12 in a release-lever 10. If positive-feed' is required, the feed-rollers are released, and the webs are passed upwards between the guides 21a, 35 and engaged by the pins. If positive-feed is not required, the feed-rollers are engaged and the web are passed under the guides 24, the pin-wheels being allowed to rotate idly, or the pin-wheel shaft being removed.' The guides 24 may be replaced by a feed-roller resting on the platen. In an alternative construction, the pin-wheel shaft is mounted on arms pivoted on the platen-shaft, the arrangement enabling the pin-wheels to be swung backwards when out of use. The arms are held in normal or backwards position by a clamping-screw passing through an arcuate slot in the frame. In the apparatus shown in Fig. 5, a shaft 27a carrying pin-wheels 28a is mounted in extensions of the feed-roller arms 18, release of the feed-rollers causing the pin-wheels to co-operate with the platen 1, and vice versa. The platen is formed with grooves for receiving the pins, the grooves being masked at and above the printing line by means of fingers 45.
Patent GB-820479-A (GB)
Title: Rangefinder sights
Inventor: TOCZYLOWSKI HENRYK STANISLAW
IPC: F41G3/06
Filed: 1959-02-20
Abstract: 820,479. Gun-sights. BEACONING OPTICAL & PRECISION MATERIALS CO. Ltd. Feb. 20, 1959, No. 12019/59. Divided out of 818,872. Classes 92 and 119 [Also in Group XX] A range finder sight in which the parallax angle is determined by bringing into proper relationship the two images of a target formed each by one of two beams of light from the target and entering each one on a pair of spaced windows in the tangent elevation angle of the barrel of a firing weapon to which the sight is clamped is automatically obtained by bringing said two images into proper relationship, is rendered suitable to cater for variations in the ballistic curve of the weapon by the provision in the zero-setting device or means additional to the means usually provided for zeroing purposes, adapted to deflect a light beam in the plane on the instrument base by an adjustable angle and thereby deliberately change the parallax angle so that a new setting of the instrument is needed to bring the two images into proper relationship. As shown, a zero setting device comprising a shaft operating an optical deviator and having a pointer co-operating with a scale 51 in arbitrary units has added thereto a disc 52 which may be secured to the instrument body as by a set screw or to the deviator shaft, this disc bearing a scale 53 graduated in terms of a factor (e.g. temperature), which causes the ballistic curve of the weapon tovary. In use, the pointer of the knob 50a controlling the deviator shaft is set to the reference temperature R, this temperature being that at which the ballistic curve of the weapon corresponds with that for which the sight was originally designed, and the disc 52 is clamped to the shaft, Therefor, the instrument is zeroed by rotating- knob 50a and disc 52 until the disc pointer registers with the current reading on scale 51. Disc 52 is nowreleased from the shaft and secured to the instrument body so that by rotation of the shaft relatively to the disc 52 variations of ballistic curve due to temperature changes can be compensated. Specifications 738,504, 772,658 [Group XVI] and Canadian- Specification 549,249 are referred to.
Patent GB-520370-A (GB)
Title: Air ship
IPC: B64B1/00
Filed: 1939-04-21
Abstract: 520,370. Airships. FORTON, G. April 21, 1939, No. 12099. [Class 4] An airship is divided by a partition 8 into an upper gas chamber 9 and a lower load chamber 10, and has laterally opposed openings 12 in the upper part, housing propellers 13, approximately half of each propeller projecting , from the airship envelope. The propellers 13 are of very coarse pitch in order to exert mainly lifting effort, the propellers on opposite sides rotating in opposite directions, and each being driven by a separate engine. Screws 17 amidships provide forward propulsion. Horizontal paddles 20 in the forward part of the ship are used to steer and brake the ship.
Patent GB-494527-A (GB)
Title: Improvements in and relating to photographic hand cameras
IPC: G03B19/04
Filed: 1937-04-28
Abstract: 494,527. Photographic gun - form cameras. STEWARD, H. April 28, 1937, No. 12107. [Class 98 (i)] A snapshot hand-camera comprises a complete light-tight structure enclosed within a further light-tight casing resembling a fire arm. The camera structure comprises a lens mount a, shutter b, body c, with film containers d and operating means for the shutter and film, a cover for the film, and a two-part outer casing of which one-half g is shown, containing film spools o in the handle. The lens mount a comprises a flat plate a<1> with a hollow conical projection a<2> carrying the lens a<3>, and an apertured plate a<5>. The shutter plate b<1>, Fig. 6, carries a spring-pressed obturator b<2>, operating lever b<3>, and trip lever b<4> having two flexible arms b<5> and b<7>. When the lever b<9> is moved down the projection b<6> moves the lever b<4> so that the end b<7> passes over the arm b<8> of the obturator b<2>. The projection b<6> then releases the lever b<4> which returns to its initial position, moves the obturator to uncover the aperture, and finally releases it to return to the pre-set position. When the lever b<9> is released, the lever b<4> is not affected. The camera body c comprises a die-casting having a plate c<1>, Fig. 5, with a box c<2> on one side having an exposure aperture c<5> at the end, and a recess c<6> for the shutter assembly. The recess is closed by the lens mount a. A trigger c', Fig. 9, is pivoted at the lower part of the plate c<1>, the spindle c<8> carrying also a lever c<11> which actuates the rewind mechanism. A spindle d<1> which engages the film, carries also a pinion d<3> gearing with a wheel k which is rotated in one direction only by a pawl k<1> pivoted on an arm k<2> which itself is pivoted at k<3>. The lever c<11> has a projection c<12> engaging a slot in the arm k<2>, so that when the trigger is pulled, the lever c<11> and arm k<2> move upward, and the projection k<7> actuates the shutter lever b<9> which projects through the slot b<4>. The pawl k<1> moves over the wheel k during pulling of the trigger, but when the latter is moved back, the wheel k is rotated to wind the film. The return movement of the trigger may be effected by the finger,' or by a spring not shown. The film chambers d are closed by a cover sliding in guides d4 and having a non-actinic window. The outer casing g, Fig. 2, is of thermoplastic material or sheet metal and completely encloses all the camera mechanism except the trigger. A foresight p may be provided by which the object may be sighted when the camera is held at arm's length. To facilitate handling of the miniature film spools, a guard clip m, Fig. 5, is provided, the projection m<1> being received in a notch d<7>.
Patent GB-126969-A (GB)
Title: A Process for Producing Illuminated Designs by Reflection.
Inventor: BERTRON ERNEST
IPC: G09F13/14
Filed: 1919-05-14
Abstract: 126,969. Bertron, E. May 28, 1914, [Convention date]. Signs.-A sign, letter, or design comprises a backing 1 forming the design &c. and provided with seatings 4, 5 to which are attached by adhesive thin concave or convex silvered or gilded reflecting disks 2. The seatings are formed as protuberances 4 or as hollows 5 to fit the backs of the disks 2. The backing 1 is preferably of plastic composition, statuary pasteboard, plaster &c. cast in moulds. When applied to a mirror or show case, the design is attached to the internal face of the show case and the disks and their seatings are fixed to the external face.