baber/WOPTO huggingface dataset:
Patent GB-502485-A (GB)
Title: Improvements in or relating to cables having inserted insulated electric conductors
IPC: H01B7/04
Filed: 1937-09-17
Abstract: 502,485. Conductors combined with ropes. SIEMENS - SCHUCKERTWERKE AKT.-GES. Sept. 17, 1937, No. 25273. Convention date, Sept. 18, 1936. [Class 36] A rope, such as a harpoon line, or a towing line, comprises a fibrous or metal stranded element, or a plurality of such elements twisted together, one or more insulated electric conductors being arranged within the strands of the element or at least one of the elements. The strands of the element or elements containing a conductor are bound together by one or more strong threads or cords wound in spaced turns about the strands with a lay different from or opposite to that of the strands to prevent the conductor from protruding between the strands. In the construction shown, the rope comprises three stranded elements each constituted by hemp strands 1 which envelop an insulated conductor 2. The convolutions of the strands 1 are bound together by a double ply hemp cord 3 which is applied with a lay substantially equal to the diameter of the element.
Patent GB-413894-A (GB)
Title: Improvements in or relating to television systems
IPC: H04N5/16
Filed: 1933-09-13
Abstract: 413,894. Television &c. MARCONI'S WIRELESS TELEGRAPH CO., Ltd., Electra House, Victoria Embankment, London. -(Radio Corporation of America; 30, Rockefeller Plaza, New York, U.S.A.) Sept. 13, 1933, No. 25374. [Classes 40 (iii) and 40 (v).] In a stereoscopic television system which may employ cathode-ray apparatus both for transmission and for reception, lines belonging to the right-eye and left-eye pictures are scanned alternately at the transmitter. At the receiver both sets of lines are reproduced on the same screen 77, Fig. 1, and are viewed through a grating 97. Stereoscopic transmission. Two cathode-ray tubes 1, 3, Fig. 3, one for each eye, may be used for transmission as described below. The oscillator 9 operates at line-scanning frequency to render the tubes 1, 3, operative alternately. Valves 13, 15 are so biassed that they are alternately blocked by the oscillations. They are resistance-coupled to a further pair of valves 23, 25, whose outputs are used to bias the control grids 33, 37, of the tubes 1, 3, so as to bring them alternately above and below cutoff ; the tubes therefore scan successive lines. Cathode-ray transmitter. Each of the tubes 1, 3, Fig. 3, is constructed as shown in Fig. 9. A cathode beam scans the photoelectric surface 47 under the influence of a pair of coils 43 and a pair of plates 45 ; and the variation of the electron current is applied through resistance 55 to a line or wireless transmitter. This variation is produced by projecting an image of the object 49 on to the photoelectric surface 47, so that the space charge above each element of the surface depends on the brightness of that element. Alternatively (Fig. 8, not shown) two mirrors, one representing each eye, may reflect light from the object through two Nipkow spirals of apertures. In a modification the two cathode-ray tubes may be replaced by one tube having a light sensitive surface 47 on each half of which an image is formed, the two sensitized halves being separated by a non-sensitized strip to permit of the interpolation of a synchronizing-signal, (Figs. 5 and 6, not shown). Stereoscopic reception. A cathode-ray receiver, (Fig. 10, not shown), synchronized as described in Specification 407,409 and arranged in a cabinet having a mirror lid as described in Specification 377,622 and a sound-receiver. Its anode may comprise a metallic deposit on the inside of the tube (Fig. 10, not shown). The scanning-lines for left-eye and right-eye are traced alternately and viewed through a grating (97, Fig. 1, not shown) so that only one of the eyes, R or L, sees each set of lines. Specification 395,499 also is referred to.
Patent GB-1096730-A (GB)
Title: Improvements in or relating to irradiation apparatus
IPC: F24C7/06
Filed: 1966-06-07
Abstract: 1,096,730. Grill pan; domestic cooking vessel. L. B. DE VRIES. June 7, 1966 [June 9, 1965; Feb. 22, 1966], No. 25393/66. Headings A4A and A4D. [Also in Division H5] A domestic cooking enclosure or infrared griller 1 is shaped as a symmetrical body of revolution and internally provides annular reflective bands which encircle the axis of revolution and are positioned to heat by reflection a body mounted centrally in the enclosure 1, the heat emanating from an annular tube 14 containing an electric heating element, and a reflecting shield 13 preventing direct heating of the said body. The body to be heated is supported on a sinuous frame 15 in the central portion of the enclosure 1 which has two symmetrical halves 2, 3, of highly polished stainless steel.
Patent GB-715396-A (GB)
Title: Improvements in or relating to apparatus for detecting the presence of bodies of electrically conducting or magnetic material
Inventor: LOGAN SYDNEY YATES
IPC: G01V3/10
Filed: 1951-10-30
Abstract: 715,396. Electric tests. LOMA ELECTRONIC EQUIPMENT, Ltd. Jan. 30, 1953, [Oct. 30, 1951; Feb. 30, 1952.] Nos. 25394/51 and 3313/52. Class 37. Apparatus for detecting the presence of conducting or magnetic. material by means of a pick-up head associated with an oscillator in such a way that the presence of a body to be detected changes the amplitude of or starts or inhibits oscillations or otherwise modifies them is characterised in that a plurality of pick-up heads are associated with one oscillator and one amplifier, each head and associated indicator being periodically switched to the operating condition by an electronic switch controlled by a polyphase A.C. supply, or by a split single phase supply. In a 3-phase embodiment with two groups of three heads H1-H6 (Fig. I) the output from an oscillator O is cyclically switched to three output circuits DSI, DS 2 , DS 3  by a switching device DS operated by the three phases PI, P 2 , P 3  of the A.C. supply, each output circuit e.g. DSI feeding two heads e.g. Hi, H 2 . Thus the first group of three heads H1, H 3 , H 5  are energized cyclically, and feed into an amplifier AI. whose output is taken to three parallel arms IAI, aAt, 3AI each containing a relay winding RW and a rectifier R, the relays RW being conditioned for operation cyclically by the same three phases PI, P2, P3. The group H2, H4, H6 act similarly via amplifier A 2 . The oscillator O may be associated with any number of groups comprising three heads and associated amplifier. In an alternative arrangement Fig. 2 the switching device DS is omitted, cyclic control of three separate oscillators O 1 , O 2 , O 3  feeding the pairs of heads H i, H 2 , H 3 , H 4  and H 5  H6 being brought about by feeding them with respective phases P1 ... P3. For other than 3- phase supplies the number of phases determines the maximum number of pick-up heads per amplifier. For use on a single phase supply, two voltages 180 degrees apart are obtained from the ends of a centre-tapped transformer to perform the cyclic switching function.
Patent GB-1491615-A (GB)
Title: Silver halide vapour deposition method and apparatus
IPC: G03C1/496
Filed: 1975-06-13
Abstract: 1491615 Vacuum deposited silver halide coatings ZLAFOP pri BAN 13 June 1975 [14 June 1974] 25457/75 Heading C7F [Also in Division G2]  A photographic vacuum deposited silver halide coated substrate is made by heating silver halide # 99.999% purity in an inert crucible 2 which has a transverse cross-sectional area # 5 times that of the outlet 5, the crucible forming part of a vacuum chamber 7 and heating being effected by a radiant heater 3 located around the crucible outside the vacuum chamber. A substrate 8 moves through the vacuum chamber not more than 10 mms. above the outlet 5 so that the silver halide vapour stream impinges perpendicularly on it.  The crucible may be quartz, Ag or graphite and the substrate may be glass, mica, polyester or acetate film or plastics coated paper. Prior to coating with the halide the substrate may be primed with a photo-resist lacquer, or a vacuum deposited layer of a chromate of Pb, Ba, Ag or Bi. A vapour deposited SiO primer may be used but it is not preferred. The substrate is also preferably heated e.g. to 200C prior to coating with the halide e.g. Ag Br or Ag Cl and after coating conventional photographic techniques such as vapour deposition of Ag or Au are effected.
Patent GB-599120-A (GB)
Title: A combined photographic contact printing apparatus and dark-room lamp
IPC: G03B27/16
Filed: 1945-10-02
Abstract: 599,120. Dark room lamps. WARREN, W., and BOVINGTON, G. H. Oct. 2, 1945, No. 25556. [Class 75 (iv)] [Also in Group XX] A combined printing apparatus and dark room lamp comprises a box having in the top a printing aperture adapted to support negative and sensitive material two light sources in the box, one to provide orange safe light continuously and the other to provide white light' when required for printing, and an opening in a vertical wall of the box adapted to be covered by a movable ruby window when desired. One vertical wall may be hinged to the floor to afford access to the interior. As shown, the box has a two-part hinged pressure lid 22 beneath which, in an opening in the top, is a glass platen supporting a negative mask which may have runways to permit the negative to be slid into position. Below the opening are provided runways for a diffusing screen 13. The vertical hinged wall 25, with closure latch 27, is provided with an orange window 28 which may be reinforced by a ruby window 30 slidable in guides 29 and operable by a rod 31 with external knob. A bracket 12 on the floor carries holders 11, 11a for electric lamps, the orange lamp being wired directly or through an on-off switch to a plug-socket on the outside of the box, and the white lamp being wired to said socket through a push switch actuated preferably by the lid 22 of the box when pressed down. Vents are provided beneath this lid.
Patent GB-738122-A (GB)
Title: Improvements in or relating to fluid shut-off valves
Inventor: HORSTMANN RONALD BLESSLEY
IPC: F16K41/12
Filed: 1953-09-16
Abstract: 738,122. Clockwork-actuated valves. HORSTMANN GEAR CO., Ltd. May 31, 1954 [Sept. 16, 1953], No. 25595/53. Class 135. A shut-off valve comprises a valve body 1, Fig. 3, having inlet and outlet ports 2, 3 and housing a spring-pressed ball 4 engageable by a plug 17 secured to a leather sealing diaphragm 5 by a nut 19 and an adjustable screw 21. The screw passes through and is secured to a flap 20 having a nose 22, Fig. 1, engageable with a claw lever 25, Fig. 4, pivoted at 26 on the short arm 27 of a bell-crank. The long arm 29 of the bell-crank extends through the casing of a timepiece 7 into the path of a pin 30 on a tappet arm 9 and is held against a stop-pin 31 by a spring 32. On the pin 30 engaging the arm 29, the pivot 26 and claw 25 move leftwards, Fig. 4, so that the inclined edge of the claw rides over the nose 22. The pin 30 by then has passed the arm 29 and the latter under the action of the spring 32 snaps into position behind the flap 20 and moves it towards the body 1 to unseat the ball. To reseat the ball, a pin 35 on a tappet 10 of the timepiece engages a loosely mounted lever 34 having a pin 36 which engages an arm 37 of the claw lever 25 to release the claw from the nose 22. The valve may be manually-actuated by the rotation of a knobbed spindle 38 having fingers 39, 40. The finger 40 engaging an arm 43 of the claw lever to release the latter from the nose 22 and, when released, the finger 39 presses' the nose 22 towards the body 1 to unseat the ball. Instead of a ball, the valve may be mushroom-headed with its stem engaging the plug 17, or it may be a disc or a flap.
Patent GB-913114-A (GB)
Title: Packaging methods and apparatus
IPC: B65B9/22
Filed: 1959-07-27
Abstract: 913,114. Making tubes. LEASURE, W. C. July 27, 1959, No. 25684/59. Class 99(2). [Also in Group XVII]. In a machine of the type in which a tube is formed from a web and articles or increments of material are introduced into the tube which is then sealed transversely between them, the tube former operates on the outer surface only of the web the usual inner filling tube being omitted. Filling may take place in inclined or horizontal positions as well as in that shown, the web then carrying the material &c. along with it. The former 8 consists of tubular and wing portions and the tube may be extended and apertured as at 51 so that suction may be applied by a shoe 50 to draw the web against the former and keep the tube open. In one embodiment a vertical plate 16 may assist in directing quantitites of material from a scale pan into the tube. Seaming of the longitudinal overlap may be performed by opposed heated rollers, spring loaded bars, or by inner and outer bars 29<SP>1</SP>, 32<SP>1</SP> moved into web engaging position by a hydraulic motor 38. A method of designing the former is described, Fig. 7 (not shown). Specification 440,328 is referred to.
Patent GB-918519-A (GB)
Title: Process for the production of alkyl-lead from lead-sodium alloys and alkyl halides in the presence of an ester of an oxy-acid of phosphorus as catalyst
Inventor: PAGLIARINI PIETRO
IPC: C07F7/24
Filed: 1961-07-17
Abstract: Lead-sodium alloy is reacted with methyl chloride or with ethyl chloride followed by methyl chloride in the presence of an ester of an oxy-acid of phosphorus as catalyst.
Patent GB-172139-A (GB)
Title: Improvements in folding canopy fittings for motor chars-a-bancs and other vehicles
IPC: B60J7/12
Filed: 1920-09-08
Abstract: 172,139. Bunn, C. W. Sept. 8, 1920. Hoods.-In a folding hood fitting for chars-Ó. bancs and other vehicles having two pairs of links which extend between and support' the hoopsticks, each pair of links being pivotally connected to the hoopsticks at one end and pivotally attached to the links of the other pair at their other ends, the upper links 3, 4 overlap and are pivotally connected at their point 8 of intersection, and the lower links 1, 2 are pivotally connected at their outer ends 12, 12<a> to the overlapping ends of the upper links so that each hoopstick supports the hoopstick in front of it until the links reach andpass over a deadcentre position near the limit of their extension.
Patent GB-751328-A (GB)
Title: Apparatus for effecting animal restraint
IPC: A01K13/00
Filed: 1954-08-25
Abstract: 751,328. Restraining animals. JOHNSON, H. P. Aug. 26, 1954 [Sept. 2, 1953], No. 24864/54. Class 81(2). Animal restraint apparatus comprises a tail embracing member shaped to engage the underside and opposite sides of the tail, anchor means for attachment to the animal forward of the tail and a tension structure between said means and said member for supporting the tail in a forward dorsal position. The tail embracing member 12 consists of relatively heavy moulded rubber disposed in a plane and is bent about a vertical axis a-a to embrace the tail from underneath. Stiffening members 26 prevent the member 12 being bent about a haircutal axis b-b. The tail embracing member 12 is held in supporting position by a rope 14 secured to an eyeletted plate 22 which is secured to the animal by a halter 16. Another form of tail embracing member (not shown) is made of webbing and leather.
Patent GB-811174-A (GB)
Title: Improvements in or relating to electrical systems for alternators
IPC: H02J3/42
Filed: 1955-09-09
Abstract: 811,174. Supply systems depending on two or more machines; synchronizing. SOC. GRAMME. Sept. 9, 1955 [Sept. 10, 1954; Oct. 16, 1954; June 21, 1955], No. 25854/55. Class 38 (4). In a system for enabling the connection of an alternator to an A.C. network without regard to whether the machine is operating synchronously, the connection is initially made through a variable reactance, the magnitude of which is varied automatically so as to maintain the resulting synchronizing current below a predetermined safe value, the machine being subsequently directly connected to the network after synchronous operation is attained. The machine may be provided with damping windings to facilitate synchronization. As shown in Fig. 1, the incoming machine 1 is first connected to the network 9, already supplied by a running machine 2, through the A.C. windings of a transductor 4 having a D.C. winding 5 energized with constant current from a source 6 and a D.C. winding 7 variably energized from a source 8 in proportion to the beat voltage between the network 9 and machine 1, the arrangement being such that the reactance of the transductor varies with; and in the same sense as, the beat voltage. The winding 5 limits the minimum value to which the reactance may vary. To maintain stable parallel running under fault conditions in the network the alternators are so constructed as to have a very high armature reactance and are provided with exciters capable of supplying a maximum voltage of two to three times normal working voltage, controlled by a quick-acting voltage regulator.
Patent GB-501372-A (GB)
Title: Improvements in mechanical travelling toys
IPC: A63H29/04
Filed: 1937-09-23
Abstract: 501,372. Toys. MULLER, H. Sept. 23, 1937, No. 25863. Addition to 487,524. [Class 132 (iii)] The mechanical travelling toy described in the parent Specification is provided with a grating preventing contact of the blow-on plate or surface by hand but allowing the passage of the blown current of air. The pivoted single or double - armed blow - on plate 3, 4, which can be flat, hollowed-out or provided with a turned-up edge, is protected by a grating 5 formed by slots in the toy casing with downwardly turned edges, but can be actuated, if necessary, by the counterweighted hand lever (i on the pivot 2 of the blow-on plate and provided with a nose 15 located under the front end 3 of the blow-on plate. The blow-on plate 3, 4 carries a lever 28 engaging the ratchet wheel 27 and the front end 3 of the blowon plate is bent into U-form with one limb 11 longer than the other for engagement as a locking pawl with the ratchet wheel 27. The lever 28 passes through an opening 14 in a bridge piece 12 which limits the stroke of the lever and determines the extent of movement of the blow-on plate. The spindle 25 of the ratchet wheel 27 is of large diameter and has considerable surface friction in the bridge piece 12, thus ensuring automatic braking of the wheel. The hand lever 6 may act directly on the ratchet wheel 27. A toothed wheel 26 is carried by the ratchet wheel 27 and co-operates with a member 13 rotated by spring driving mechaiism I and preferably formed as a flexible member one end of which is arranged in helical turns on the spindle 9. The toy can be provided with a reversing slide 10.
Patent GB-1580202-A (GB)
Title: Process for the preparation of cyclopropanecarbonitriles
IPC: C07B37/06
Filed: 1976-06-22
Abstract: The compounds of the general formula I are prepared by heating a compound of the formula II in the presence of a polar aprotic solvent. In the formulae, Hal is a fluorine, chlorine or bromine atom, R<1> and R<2> are each a C1-C6 -alkyl group, and X is an ammonium group. The process is notable for its high selectivity. <IMAGE>
Patent GB-1458715-A (GB)
Title: Liquid manure agitating and loading apparatus
IPC: A01C3/04
Filed: 1974-06-12
Abstract: 1458715 Loading manure into vehicles HESSTON CORP 12 June 1974 [12 Dec 1973] 25967/74 Heading B8E [Also in Division B1] Apparatus for agitating liquid manure in a pool and loading it into a tank comprises a rotatable agitator 64, a screw conveyer 22 and a tank 10. The agitator has flexible blades 68 and rotates in a housing 44 having a convoluted wall 50, so that slurry is drawn in through an intake 52 and guided by the wall into the inlet 56 of the conveyer. The housing is rotatable by a jack 46 about the axis of the screw from the operative position shown into a transport position, see Fig. 2 (not shown), in which the end 54 of the wall 50 closes the conveyer inlet 56. The housing can be detached from the tank and withdrawn with the agitator and conveying screw by undoing the clamp rings 30-36. The tank has a sump 26 for stones. The apparatus may have transport wheels, may be self-propelled, or towed and operated from the power take-off of a tractor.
Patent GB-699325-A (GB)
Title: Methods and devices for the manufacture of pre-stressed concrete structural members
IPC: B28B23/04
Filed: 1951-11-06
Abstract: 699,325. Reinforced concrete. PRELOAD CO., Inc. Nov. 6, 1951, No. 25999/51. Class 20(iv) In a method of manufacturing- prestressed concrete structures the components for tensioning a reinforcing member 4 including an anchor member 3 connected to one end of the reinforcing member, an enclosing sleeve 1 temporarily connected to the anchor 3 by a pin 5, and a filler piece 8, are first secured to a form 7 by means of a pulling member 9 which is screwed at one end into the anchor 3 and protrudes through the form 7 at the other end to receive a nut 11 and a washer 10. Concrete is then poured into the form to embed the sleeve 1, partly nested conical rings 21<SP>1</SP> surrounding the reinforcement, and a spiral reinforcement' 13. When the concrete has hardened the form 7 and the piece 8 are removed and the wires are tensioned, with consequent shearing of the pin 5, e.g. by a jack, the nut 11 holding the tension by bearing on an anchor plate 16 which closes the end cavity. Grout is forced into the sleeve 1 and rings 21' through a screwed hole 17 in the anchor plate, a vent tube, not shown, permitting the escape of air from the rings 21<SP>1</SP>. A gasket ensures a tight joint between the plate and the concrete structure. When the grout has set the anchor plate and the pulling member 9 are removed, the cavity being filled with concrete. In an alternative arrangement, Fig. 4, the upper and lower parts of the sleeve 18 are conically and cylindrically stepped respectively, a deeper intermediate piece 21 having a collar 22 to engage the sleeve 18 is used, the parts being secured to the form 7 before the concrete for the main body is poured by means of a bolt 20 and a nut 11<SP>1</SP>. 'When the concrete has set the form 7' is removed together with the intermediate piece 21 and the bolt 20 and the pulling member is screwed into, the anchor member 3. The subsequent procedure is as previously described. In a' further arrangement, Fig. 5, in which prestressing force is transmitted to the concrete through an end anchor plate 28, an anchor 3<SP>1</SP> is screwed into an internally and externally threaded tubular member 25 which, before the wires are tensioned, rests on the inturned bottom edge of a sleeve 24. To stress the wires 4 the head 26 of a pulling element 9 is screwed into the tubular member 25, the element 9 being raised by a hydraulic jack supported on an anchor plate 28. A nut 27 bearing on the plate 28 is screwed on to the member 25 to maintain the tension in the wires. In a modification of the last described embodiment the steel anchor is of cruciform section. In an arrangement for prestressing bars instead of wires, the anchor is of inverted mushroom shape which threadedly receives the pulling element 9 at one end and a reinforcing bar at the other end.
Patent GB-1283362-A (GB)
Title: Rotary road sweepers
Inventor: CRAIG JOHN
IPC: E01H1/05
Filed: 1969-05-22
Abstract: 1283362 Road sweepers J CRAIG 26 May 1970 [22 May 1969] 26066/69 Heading E1G A road sweeper comprises a frame 2 carrying a cylindrical brush 7, a removable transmission unit and a hydraulic motor 9. The transmission unit comprises a chain 10 and sprockets 11 contained within a casing 19 bolted to frame 2. A plate 13 secured to frame 2 is connected by pins (14), 15 to bar (4) attachable to a vehicle. The angular and lateral position of the brush is adjusted by positioning of the pins in respective holes (17, 16) in bar (4).
Patent GB-221106-A (GB)
Title: Improvements in or relating to kettles and the like
IPC: A47J45/08
Filed: 1923-10-20
Abstract: 221,106. Morgan, P. A. Oct. 20, 1923. Handles.-A shield a for attachment to the handle of a kettle or like vessel comprises a plate of metal or other material formed at its ends with lateral attachment strips c adapted to be bent around the ends of the handle. The long edges of the shield may be curved upwardly.