baber/WOPTO huggingface dataset:
Patent GB-900745-A (GB)
Title: Improvements relating to clamping devices
Inventor: AITKEN GEORGE LEWIS
IPC: H04N5/645
Filed: 1959-05-19
Abstract: 900,745. Cathode-ray tubes. FERRANTI Ltd. May 6, 1960 [May 19, 1959], No. 16863/59. Class 39 (1). [Also in Groups XXV and XL (c)] A constant pressure screw-actuated sliding jaw clamp embodied as a holder for a cathoderay tube comprises a carrier 8 into which the tube 12 is urged by an annular pressure pad 13 acted upon by a tubular thrust member 4, an annular compression spring 6 is interposed between the thrust member and a screw cap 1. When the cap is screwed up the spring remains uncompressed until the pressure pad 13 abuts against the tube 12; thereafter the spring is compressed until the stud 3 abuts against the stop 10 which is fixed in the thrust member 4 and projects through a slot 9 in the carrier. The amount of compression of the spring, and hence the thrust on the tube, is represented by a predetermined number of turns of the screw cap 1 irrespective of the dimensions of the tube. In another embodiment, Fig. 3 (not shown), the screw cap is replaced by a screwed plug having a stud which abuts against an internally projecting stop formed in a thrust ring which is prevented from rotating by the engagement of a lug on the ring in an internal groove in the carrier.
Patent GB-602354-A (GB)
Title: Improvements relating to electrical contactors
IPC: H01H50/24
Filed: 1945-07-03
Abstract: 602,354. Electromagnets. ENGLISH ELECTRIC CO., Ltd., MARDIS, P. L., and SMITH, S. A. July 3, 1945, No. 16886. [Class 35] [Also in Group XXXVII] In an electromagnetic contactor, the coil former 11 rests on a flange 12a at the foot of the core 12 and is pressed against it by a spring washer 15 of magnetic material. This makes it unnecessary to manufacture the core 12 and former 11 with close tolerances as to their lengths.
Patent GB-594870-A (GB)
Title: Improvements in dynamo electric machines
IPC: H02K19/24
Filed: 1945-07-03
Abstract: 594,870. Inductor - alternators. MANDL, A., and METROPOLITANVICKERS ELECTRICAL CO., Ltd. July 3, 1945, No. 16921. [Class 35] In an inductoralternator wherein the stator teeth do not all register simultaneously with the rotor teeth the stator and rotor are split into two or more axially displaced portions so arranged -that when the stator and rotor teeth are in a lowreluctance position at a part of the circumferential periphery, the teeth in the axially aligned part of the other (or another) portion are in a high-reluctance position. The Figure shows one half of a machine divided into two portions in a common casing with common exciting coils 14, 15 giving two exciting poles divided into two portions 8, 9 and 11, 12 by slots 10, 13 accommodating the A.C. coils 16, 17 which are separate in the two halves. The pole halves are so toothed that the teeth on parts 8 and 11 register with rotor teeth, while those on parts 9 and 12 register with slots whereby the flux axis alternates between AA<1> and BB<1>. The other rotor half is angularly displaced by half a rotor tooth pitch so that the teeth on poles halves 9, 12 on the other part register with the rotor teeth when teeth on halves 8, 11 register on the first part so that the simultaneous flux changes would be between BB<1> and AA<1>. Specification 557,968 is referred to.
Patent GB-1085335-A (GB)
Title: A fluid flow machine, such as, for example, a gas turbine engine
Inventor: PASK GEORGE
IPC: F01D9/04
Filed: 1966-04-18
Abstract: 1, 085, 335. Turbine blade fixing. ROLLSROYCE Ltd. April 18, 1966, No. 16947/66. Heading F1T. Each nozzle guide vane 16 is mounted in a gas turbine engine by inner and outer platforms 20. 21, respectively held tightly between pairs of annular mounting members 26, 28 and 27, 29 so that sealing surfaces on the mounting members are urged to seal with respective upstream and downstream facing surfaces 22, 24 and 23, 25 on the platforms at normal operating temperatures. This is achieved by dimensioning the mounting members so that when the inner members 26, 28 are clamped together and to fixed structure 30 by bolts 32, member 26 is stressed in tension and member 28 in compression in the "cold" state. Similarly, when outer mounting members 27. 29 are clamped to the casing 31 by annular flanges 33, 35 and bolts 37, the member 27 is stressed in tension and member 29 in compression. Each vane is located circumferentially by dogs 43 and dowels 44, and radially by a hook 42 engaging a recess in member 28. In a modification, members 26, 27 are formed with circumferentially spaced slots forming fingers.
Patent GB-407662-A (GB)
Title: Improved contrast product for observations upon bodies which are transparent to x-rays
IPC: A61K49/04
Filed: 1932-06-15
Abstract: Thorium phosphate in the form of a gel with a density less than 1 is prepared by precipitating a solution of monazite in sulphuric acid by a large dilution with water in the cold Sodium pyrophosphate is added in amount sufficient to precipitate the residual thorium in solution. A small quantity of an alkaline substance such as magnesia may be mixed with the thorium phosphate to form an insoluble salt with any phosphoric acid set free by decomposition.ALSO:A contrast medium for X-ray photography of internal parts of an object comprises a pasty mixture of a substance of very high atomic weight with relatively transparent inert powders such as cereal starch, talc, kieselguhr or china clay.  Thorium, uranium, and the rare earths are referred to as substances of high atomic weight, in particular thorium salts such as the phosphate and oxalate, or the oxide.  Thorium phosphate in the form of a gel with a density less than 1 is preferred, and is prepared by precipitating a solution of monazite in sulphuric acid by a large dilution with water in the cold.  Sodium pyrophosphate is added in amount sufficient to precipitate the residual thorium in solution. A small quantity of an alkaline substance such as magnesia may be mixed with the thorium phosphate to form an insoluble salt with any phosphoric acid set free by decomposition.  For examining the stomach, thorium phosphate or other contrast substance is mixed with the inert powder and a substance giving viscous or adhesive properties such as paraffin oil, egg-yolk, gum, or milk powder. The product may be dissolved or suspended in a liquid.  The stomach may be distended by means of air, "Rivi\`gere's potion," or by addition of say 2-4 g. of sodium bicarbonate to the contrast medium, a little acid such as acetic being given afterwards if necessary.
Patent GB-612883-A (GB)
Title: Improvements in planet cages for epicyclic gear trains
IPC: F16H1/28
Filed: 1946-06-04
Abstract: 612,883. Epicyclic gearing. MATHIS SOC. ANON. June 4, 1946, No. 16987. Convention date, March 19, 1942. [Class 80 (i)] [Also in Group XXXIV] In a planetary gear train comprising a driving sun-wheel 1, fixed annulus 2 and a plurality of planet-wheels 4 carried by a cage 3, an elastically deformable member 6 supports the journal 5 of each planet-wheel 4. The axial lengths of the bearing surfaces 12, 13 are made small to permit a bending deformation of the member 6 of any planet gear which is inaccurately positioned with respect to the system. In a modification, Fig. 4, the ends of planet spindles 14 are fixed in side plates 7, 8 and' a central supporting surface 15 thereon engages an elastic bush 6. Flanges 16 on the planet journal 5 bear against the ends of the bush 6. In this arrangement the bush 6 flexes when the planet gear 4 is subjected to load.
Patent GB-356161-A (GB)
Title: Improvements in or relating to indicating or display devices
IPC: G09F11/06
Filed: 1930-06-02
Abstract: 356,161. Moving signs. AUTOMATIC TELEPHONE MANUFACTURING CO., Ltd., Strowger Works, and SAXBY, R. N., 36, Millersdale Road, Mossley Hill, both in Liverpool. June 2, 1930, No. 17036. [Class 3 (i).] In changing signs comprising a number of radial panels independently hinged to a rotating axle which brings the panels in turn to the display position, a contact brush 39 is fixed to the axle 24 whereby any particular panel 25 can be selectively shown. The brush contacts at its inner end with a spring 43 and at its outer end with stationary studs 45. Each stud is connected through a relay to a switch, whereby on closing any particular switch the relay operates to stop the driving motor when the brush reaches the corresponding stud 45. The relay may lock up to a conductor upon which potential is maintained for a predetermined period. An insulated plug on the driving wheel of the axle breaks the motor circuit when blank panels are showing. The motor may be replaced by an electromagnetically operated pawl and ratchet mechanism. A single letter or numeral may be shown on each pair of displayed panels, and the gap between may be masked by metal strips secured between the pivot rods and bearing part of the display. The panels 25 may be held at top and bottom by rods 21, 26, and may have springs 28 to quicken their movements. Rubber buffers 27 cushion their fall. The sign is contained in a rectangular casing several of which may be arranged side by side to build up a word or number, the electrical connections being made over spring contacts to allow of ready removal. Specification 338,897, [Class 118 (ii), Signals], is referred to.
Patent GB-1460799-A (GB)
Title: Holder for resiliently supporting a catalyst body in an exhaust  gas pipe section of an ic engine
IPC: F01N3/28
Filed: 1974-04-18
Abstract: 1460799 Catalytic exhaust gas converter J EBERSPACHER 18 April 1974 [18 April 1973] 17104/74 Heading B1F An I.C. engine exhaust pipe section 7 comprises a ceramic monolithic and/or multichannel catalytic body 1 and a holder attached to the pipe section and consisting of a rigid angled section 2 and a shaped resilient member 3 e.g. of 0.2 mm sheet steel, which supports the body 1 so that the body is resiliently restrained in both the axial and radial directions to absorb axial and radial stresses, member 3 optionally forming a sliding bearing at 10.
Patent GB-358537-A (GB)
Title: Improvements in and relating to three-wheeled vehicles
IPC: B62D61/08
Filed: 1930-06-04
Abstract: 358,537. Motor verhicles. VIDAL, M., 7, Morckebergstrasse, Hamburg, Germany. June 4, 1930, No. 17164. [Class 79 (iii).] In vehicles having two front steering wheels and a rear driving wheel and in which a load carrying surface is arranged in front of the driver and a cover at the back protects the engine and rear wheel, the water cooler (shown shaded) for the engine is arranged under the cover. Seats may also be supported on the cover.
Patent GB-233202-A (GB)
Title: Improvements in or relating to fountain pens
IPC: B43K5/00
Filed: 1924-07-17
Abstract: 233,202. parsons, C. Baur-. July 17, 1924. Reservoir pens.-A reservoir pen is provided with a tubular ink-feeder in which a short length at the rear end is of considerably reduced cross-section, and the front end is formed as a flattened beak containing a narrow ink pocket and a long longitudinal air-admission slot. The reduced cross-sectional area of the feeder, which is of such a size that the capillary force tending to feed ink to the nib is balanced by the suction of the partial vacuum in the reservoir resulting from the outflow of ink, ensures that only a short thread of ink is formed, which, due to the movement of the pen during writing, is caused to flow down the walls of the cylindrical portion of the feeder in a thin layer so as to leave the centre free from ink. The feeder 1 is carried in a flexible airtight stopper 2 secured in the end of the reservoir 3 so as to enable the feeder to be adjusted towards or away from the nib. The nib 6 is secured in a head 5 of a tube 4 serving as a cover for the reservoir. The head is formed with a central tube 9 provided with longitudinal slots to permit of the adjustment of the feeder. The reduction at the end of the feeder may be obtained by flattening or by the insertion of a partition. The front, end of the feeder is flattened and cut away to a point, the pointed end being bent up so as to touch the nib.
Patent GB-355398-A (GB)
Title: Improvements in spool-changing devices on looms
IPC: D03D51/34
Filed: 1930-06-04
Abstract: 355,398. Weft feeler arrangements for looms. SAKAMOTO, K., 94, Nakayamacho, Hamamatsu, Shizuoka, Japan. June 4, 1930, No. 17306. [Class 142 (iii).] Side swipe feeler mechanism for' automatic spool-changing looms comprises a pivoted feeling lever with a ribbed end adapted to slide on a spool &c. when empty and to be frictionally held against sliding by any yarn remaining thereon, the lever pivot being carried on a block moved by the lathe to an extent determined by the contact of the lever with the yarn ; the block is formed with a surface co-operating with a surface on a second block which is guided parallelly to the first block and is adapted to have its movement determined by contact with the wall of the lathe, the co-operation of these two surfaces preventing anv rotation of the lever until their relative displacement corresponds to a nearly empty spool &c. Two spring-pressed blocks 8, 10 slide in guide slots in a casing 1, one block 10 being provided with an adjustable stop 11 adapted to contact with the side of the lathe when the lathe is in its rearmost position and the other block 8 carrying a pivoted feeler 12 having a serrated end which contacts with the weft yarn on the spool 15 or the spool itself when the weft yarn is exhausted. A plain edge 12c on the feeler contacts with a similar edge 10b on the block 10 to prevent rotation or rocking of the feeler until the absence of yarn on the spool has permitted the block 8 to move the edges clear of each other and the serrated end of the feeler is no longer restrained from slipping along the spool by the yarn on it. By means of an arm 12b on the feeler, a slide 3 is displaced to the left, when the feeler rocks and draws with it a link 16. The link raises a lever 24, Fig. 8, which brings an arm 23 into the path of a striker 25 carried by the lathe. The striker thrusts back a slide 22 on which the arm 23 is pivoted and an extension 22a of the slide engages an arm 19 secured to a shaft 17 to rock the shaft and effect the shuttle change.
Patent GB-154261-A (GB)
Title: Improvements in rotary engines or pumps
IPC: F01C1/04
Filed: 1919-07-10
Abstract: 154,261. Varley, C. H. July 10, 1919. Fixed-abutment type; packing drums; balancing moving parts.-A rotary pump of the fixedabutment type having an annular chamber of any cross-section contains a gyrating body piston of like figure which touches at a point on the outer surface of the chamber and at an opposite point on the inner surface. The piston is mounted eccentrically, and in operation these points of contact travel round the chamber. Figs. 1 and 2 show an apparatus with a chamber of hexagonal form. One side of the piston l has an aperture of a length equal to the travel plus the thickness or the abutment and any necessary clearances. The piston is closed at the ends bv plates l<1>, l<2>, which extend sufficiently so as always to close the chamber a. Suitably shaped cover plates n, n' are provided carrying a shaft i having two eccentrics o<1>, o<2>, housed in the bosses l<4>, l<5> of the piston. The plate l<2> is further provided with pins p engaging eccentrics q, mounted on the cover plate n<1>, of the same throw as the eccentrics o', o<2> so that all points of the piston move in circles of the same radius. A balance weight o<3> is fixed on the shaft. Fig. 7 shows the packing arrangements. A resilient strip r is carried in a groove all round the perimeter of the chamber, whilst a resilient transverse strip s is dovetailed into each flat side and the strip r. The packing strips s have to take up the distance between the chord and the arc of the circle during the motion of the piston.
Patent GB-1419627-A (GB)
Title: Rotary cultivating machine
IPC: A01B33/02
Filed: 1972-04-17
Abstract: 1419627 Rotary cultivating machine ROTARY HOES Ltd 3 April 1973 [17 April 1972]  17546/72 Heading A1B A rotary cultivating machine having a driven rotor for carrying cultivating tools is constructed so that the rotor is readily replaceable. The rotor shaft may be in two parts 10 and 11 of different lengths. Each shaft has a coupling member 35 secured to either end by welding 36 and carries pairs of flanges 16 for holding shanks of cultivating blades 17 (Fig. 3) by means of a bolt 18 and abutment member 19. The support means at the transmission end of shaft 10 (Fig. I) consists of a splined stub drive shaft 21 supported in a bearing 23. A drive coupling member 30 having a raised rectangular portion 32 is attached to the drive shaft 21 by screws 29. The welded coupling member 35 of shaft 10 has a channel 33 for sliding over the raised portion 32. A member 38 with bolts 61 and springs 64 (Fig. 3) clamps the shaft 10 to the coupling member 30. The shafts have intermediate support means suspended from plate 14 (Fig. 2) consisting of a bearing 44 carrying the stub shaft 48 with disc-shaped portion 57 to which is splined a coupling disc 45 secured by a bolt 50. Clamping members 38 with bolts 61 and springs 64 secure shaft 10 to disc 45 and shaft 11 to portion 57. Channels 52 and 58 in the coupling members 35 enable the shafts 10 and 11 to be withdrawn past the bolt 50 and projection 59 respectively. Support means at the outer end of shaft 11 (Fig. 3) consists of a stub shaft 63 in a bearing 68 to which the shaft is clamped by the member 38. A channel 65 enables withdrawal of the shaft 11 past the raised portion 66 of the stub shaft 63 when the bolts 61 are released. The bores 40 in all the members 38 are larger than the bolts 61 which in combination with the springs 64 allow the side plates 12 and 13 to flex slightly. The machine frame 9 may be fitted with wheels, skids, or a crumbler roller and a tool bar 79 may be fitted. The invention may be employed with machines having single rotor shafts.
Patent GB-1057914-A (GB)
Title: Automatic star tracker employing pattern recoguition
IPC: G01S3/781
Filed: 1964-04-28
Abstract: 1,057,914. Photo-electric direction-finding. KOLLSMAN INSTRUMENT CORPORATION. April 28, 1964 [May 3, 1963], No. 17577/64. Heading H4D. [Also in Divisions G2 and G3] A star tracking device operates by comparison of a function of the light intensity distribution over the field of observation with a reference value, differences being used to provide correction signals for servo-operated re-positioning gear. Means are provided for compensating against changes of general background illumination of the observed areas. As described, light along the axis 15 is compressed vertically into a narrow horizontal band by cylindrical lenses 10, 11 and is focused by an optical system 12 on a prism 13 by which it is split into beams along the axes 14 and 15a, respectively. The beam along the axis 15a passes through an interchangeable optical filter 16, which modifies the horizontal intensity distribution. This filter has a constant density in the vertical or y direction and variable density f(x) in the horizontal or x direction, f(x) being chosen to provide optimum error signals for the particular region of the celestial sphere under observation. The beams pass through further cylindrical lenses 17, 18 and 21, 22 which compress them horizontally, and then through optical systems 19 and 23 which focus them upon photo-sensor cells 20 and 24. The cell 20 feeds an amplifier 30, Fig. 2, and the cell 24 an amplifier 31, the two outputs being applied to an automatic gain control system 32 from which a compensated signal is derived for comparison in a network 37 with a reference voltage obtained from a potentiometer 34. Any error signal is fed via an amplifier 38 to a servomotor 39, which repositions the axis of the tracking device. A feed-back line 40 connects from the output of the amplifier 38 to the input of the network 37. The automatic gain control system comprises a non-linearly wound potentiometer 60, Fig. 3, which is energized by the amplifier 30 and whose arm is rotated by the shaft of a servomotor 52, which also rotates the arm of a linearly wound potentiometer 53. The angular position of the shaft is determined by comparing the voltage from the amplifier 31 with that derived from the potentiometer 53, by means of a network 50 and a feedback loop. Consequently, the compensated signal from the potentiometer 60 is a proportion of the amplified output of the primary sensor 20 whose value is dependent upon a function of the amplified output of the sensor 24. The star tracking device may be used in a method for obtaining a fixed reference direction with respect to the celestial background for navigational purposes.
Patent GB-646486-A (GB)
Title: An improvement in cylinder locks
IPC: E05B21/06
Filed: 1948-07-01
Abstract: 646,486. Barrel locks. SALMIVUORI, J. E. July 1, 1948, Nos. 17779 and 17780. Convention dates, Feb. 7, 1947, and Feb. 8, 1947. [Class 44] In a barrel lock of the type comprising an outer casing 2, Figs. 1, 4 and 5, and a barrel 4 connected to the lock mechanism, containing a series of independently rotatable circular disks 12, each provided with a primary notch 19 on its periphery, which when aligned by use of a key receives a bar tumbler 25, adapted in another position to lock the barrel 4 to the casing 2, at least some of the discs have a secondary notch 20 to receive a secondary tumbler bar 26 in the unlocking position. Fig. 4 shows the lock in section, the locking bars 25. 26 being in the locking position engaging in notches 23, 24 in the casing 2. To prevent picking a greater clearance is allowed between the bar 26 and its notch 24 than between the bar 25 and its notch 23. This ensures that external pressure cannot be put on the secondary bar by rotation of the barrel until the primary bar is engaged in a row of notches, this preventing further rotation of the discs. A number of false notches 34 are provided to lessen the chance that the primary bar has been engaged in the correct notches. The discs are turned to the correct position relative to the barrel 4 by a key 28, Figs. 12 and 13, engaging in sector-like openings in the discs. When the two correct sets of notches 19, 20 are aligned the bars 25, 26 fall into them as shown in Fig. 5, and free the barrel which, on further rotation of the key is turned by abutment of a projection 27 on one or some of the discs abutting the edge of a slot 15 in the wall of the barrel. When turned back to the locking position the barrel is arrested at the correct position by a spring blade 9, Fig. 1, secured to the casing 2 and engaging a notch in the end of the barrel 4. The tumbler bars may be guided by pins slidably mounted in radial bores in the barrel 4. The false notches, although of the same shape as the correct notches are so spaced that the bars may only be received in a particular pair of notches. In another form, Fig. 15, the bars 25b, 26b are mounted on arms 35, 37 extending along the periphery of the barrel, the arm 35 of the primary bar underlying the bar 26b so that the primary bar cannot move to an unlocking position before the secondary bar.
Patent GB-294528-A (GB)
Title: Improvement in sleeve valve engine cylinder head
IPC: F01L5/10
Filed: 1928-06-20
Abstract: 294,528. British Continental Motors, Ltd., (Assignees of Niven, A. M.). July 25, 1927, [Convention date]. Cylinders, cooling. - In a sleeve-valve engine a baffle 27 is provided to direct the cooling water coming from the cylinder jacket 10 into the depending portion 14 of the head. The baffle 27. which has side walls and an end wall 29, is preferably made of sheet metal and is clamped between a flange 31 and packing 32 by a nut 34. The head has a partition 28. co-operating with the wall 29. The Specification as open to inspection under Sect. 91 (3) (a) comprises also a combined wall 29 and partition 28 which is integral with either the head or its cover. This subject-matter does not appear in the Specification as accepted.