baber/WOPTO huggingface dataset:
Patent GB-242471-A (GB)
Title: Improvements in transporter cranes and in grabs for use in connection therewith
IPC: B66C3/06
Filed: 1924-12-16
Abstract: 242,471. Barnard, D. J. Dec. 16, 1924. Grab-buckets.-Relates to a grab for use with a transporter crane, supported directly from the trolly during traversing and opening, and operated by a single electric motor for traversing, opening and closing. The grab is suspended from the trolly 1 by ropes 30, and is opened and closed by ropes 32 which support the cross-bar 16. Gravity catches 7, 8 keyed on a spindle 6 on the trolly co-operate with pins 10, 11 on the grab-head and a gravity catch 9 loose on the spindle 6 co-operates with a pin 14 connected with the cross-beam. The gravity catches 7, 8, 9 are weighted so as to fall out of engagement with the pins, but they are held in the operative position by spring-pressed rods 17, 24 except when these rods are depressed by ramp-rails 22, 29 at the outer and inner ends of the transporter beam respectively. As shown in Fig. 2, the grab is at the outer end of the beam and has been raised with the buckets closed. The rod 17 is depressed, but the rod 24 brings the catch 9 beneath the pin 14 to support the buckets. As the grab is traversed, the rod 17 is released from the ramprail 22, and the catches 7, 8 take under the pins 10, 11. At the inner end of the beam the rod 24 is depressed by the ramp-rail 29 as shown in Fig. 4, and on hauling in the rope 32 slightly, the catch 9 falls out of engagement with the pin 14 so that the grab may be opened by paying out the rope. When the open grab is traversed again to the outer end of the beam, the catch 9 returns to the operative position in readiness to engage with the pin 14 when the grab is closed, and the rod 17 is depressed so that the catches 7, 8 fall free from the pins 10, 11 when the grab is slightly raised by hauling in the ropes 30. Means may be provided whereby the ramp-rail 29 depresses both rods 17 and 24 so that the grab may be lowered before discharging.
Patent GB-305718-A (GB)
Title: Improvements in or relating to beds for dogs and other domestic animals
IPC: A01K1/035
Filed: 1927-11-11
Abstract: 305,718. Tringham, A. M. Kov. 11, 1927. Folding bedsteads.-A bed for dogs and other domestic animals comprises a shallow bag 10, and a collapsible supporting frame constructed of four X-frames 22, 26 pivoted together substantially at their upper and lower ends 28, and joined, when in their extended positions. at their upper ends by four horizontal members 12, 14 adapted to support the bag completely along its top edges. Some or all of the members 12, 14 may be permanently secured to the bag, as by rivets 16, and may carry headed pegs 18, 20 to enter slots 32 in the upper ends of the X-frames. In the construction shown in Fig. 4, the members 12 are permanently hinged, at one end, to the frames 22.
Patent GB-485986-A (GB)
Title: Piston packings for fluid-pressure engines
IPC: F16J9/14
Filed: 1937-11-05
Abstract: 485,986. Piston-rings. WELLWORTHY PISTON RINGS, Ltd., and HOWLETT, J. W. Nov. 5, 1937, No. 30325. [Class 122 (i)] A split piston - ring is of wedge form with its sides 13 inclined to one another at an angle of between 7¢ and 15‹, and the dimensions being such that the ring can engage the bottom of its similarly shaped groove. The ring joint may be of the form described in Specification 489,215.
Patent GB-220530-A (GB)
Title: An improved life guard for road vehicles
IPC: B60R21/34
Filed: 1923-12-03
Abstract: 220,530. Hartell, G. J. Dec. 3, 1923. No Patent granted (Sealing fee not paid). Wheel-guards, obstruction-removers, and safety appliances.-A life-guard for a vehicle comprises in combination a substantially L-shaped frameboth limbs of which each have a plurality of springs arranged over one surface, a covering of netting or other suitable flexible material, the horizontal limb of the guard being adapted to be folded close to the vertical limb. and a length of netting or other suitable flexible material joining the top of the vertical limb and the forward edge of the lower limb. The vertical member 3 of the guard is attached to the chassis at 5 and may be hinged at 11 to provide access to the starting handle of the vehicle. The horizontal member 2 of the guard is hinged at 6 to enable it to be folded close to the vertical member when out of use. Both parts of the guard are provided with spiral springs 7 which are bounded by strips 9 of resilient material and the whole covered by netting 4 or like material. A net 10 is stretched by springs 10<b> across the guard to absorb the initial shock of a person falling on the guard. Rollers 13 are provided at the front of the guard to contact with the ground when the guard is struck.
Patent GB-928779-A (GB)
Title: Improvements in or relating to control circuits using diodes
IPC: H03C1/36
Filed: 1961-08-23
Abstract: 928,779. Volume control. PHILIPS ELECTRICAL INDUSTRIES Ltd. Aug. 23, 1961 [Aug. 26, 1960], No. 30401/61. Class 40 (4). [Also in Group XL (c)] An alternating current control circuit comprises two similarly poled diodes 1, 2 providing parallel paths for a high impedance alternating current source i, control currents I 01 , I 02  being provided to vary the impedance of one or both of the diodes to vary the distribution of the alternating current between them, the diodes having an exponential voltage-current characteristic, over a range in which the current may vary a hundredfold. It is shown that in these conditions the current is divided in the two branches in the ratio:- where Is is the saturation current of the diodes and the currents are thus substantially free from distortion. In one embodiment a variable gain stage 12, Fig. 3, in an amplifier comprises an input point 3 receiving alternating current from a preceding transistor stage having a high output impedance. The alternating current divides between diode 1 and diode 2 the latter being in series with the low impedance input circuit of transistor 5. Variable D.C. potential, obtained from a manually variable potentiometer across the + and - leads, is applied via a high resistance 18 to the diode 2, the control circuit being completed over resistance 20. Thus as the control current through diode 2 increases, the increased drop of potential across resistance 20 decreases the current through diode 1 so enhancing the gain variation. In a modification, Fig. 5 (not shown), the emitter-base rectifying contact of the transistor 5 is used instead of the diode 2. In a further modification, Fig. 6 (not shown), the transistor 5 may be replaced by two transistors in cascade, the first being of the grounded emitter type but with negative feed-back from the second transistor to reduce the input impedance. In a second embodiment, Fig. 4, a balanced arrangement is provided, two pairs of diodes 31, 32 and 33, 34 being provided. In this case the control current c which is obtained from the rectified output of a subsequent stage affects only the diodes 31, 33 ; the diodes 32, 34 receiving an invariable current. The circuit may also be used for amplitude modulation of a carrier, or for frequency modulation of an oscillator, the control circuit being included together with a 90 degrees phase shift circuit in the feed-back circuit of the oscillator.
Patent GB-1512828-A (GB)
Title: Current-limiting automatic cut-out device
IPC: H01H71/10
Filed: 1975-07-21
Abstract: 1512828 Automatic circuit breakers; arc interruption in switches LICENTIA PATENT VERWALTUNGS GmbH 21 July 1975 [25 July 1974] 30472/75 Heading H1N A current-limiting automatic circuit breaker has series connected contact sets 8, 9a and 9b, 8<1> in two separate arc-chambers 5 and 5<1> of different sizes, the larger chamber 5 having means such as quenching plates 6 for dividing the arc and the movable contacts 9a, 9b are the forked ends of a bridge member 9. Fixed contact 8 is connected to a terminal 4 and fixed contact 8<1> and its arc runner 18 is connected to a terminal 3 via a trip coil 13a and thermal trip means 14.
Patent GB-212876-A (GB)
Title: Improvements in tools for boring or recessing wood and like materials
IPC: B27G15/00
Filed: 1923-12-04
Abstract: 212,876. Interaf Akt.-Ges. Vaduz (Liechtenstein), (Assignees of Metzke & Greim Tief-und Hochbau). March 17, 1923, [Convention date]. Drills and cutters. -In a boring-tool for the insertion in timbers of the connecting plates described in Specification 201,836, (Class 89 (ii), Hooks &c.), and similar parts, a cylindrical body a having a shank e is provided with a central pin b which is located in a hole c in the beam d, and cutting - portions adapted to shape the recess 4 and the deeper annular portion 2. The outer cutting-element g is interrupted at opposite points to provide passages for the escape of chips. The annular bottom surface 2 and the inner cylindrical surface 3 are respectively formed by cutters h, k the latter being secured to cutters m which form the bottom surface of the recess 4. The depth of cut is determined by a ring o adjustably secured to the body a.
Patent GB-407133-A (GB)
Title: Improvements in or connected with gas lamps for street or other lighting
IPC: F21V33/00
Filed: 1932-10-31
Abstract: 407,133. Street, shop-window, &c. lamps. GLOVER & CO., Ltd., T., TALBOT, P., and HOYLE, D. G., Angel Road, Edmonton, London. Oct. 31, 1932, No. 30520. [Class 75 (iv).] In gas lamps for street, shop-window, and other lighting, the ordinary illuminnating lamp is combined with a flash or intermittent lighting lamp, which is connected through an intermittent supply apparatus with the illuminating lamp supply. The illuminating lamp comprises the burners 25 mounted in a casing 11 having a canopy 16 with a depending skirt 31. A shield or reflector 12 which does not fully reach the casing 11, is supported by projections 12<a> resting on the casing, and has a central conical air outlet 14. Above the latter is a baffle 20. Air holes 15, 18 are protected by the canopy 21 and skirt 31. Mounted above the illuminating lamp is the flashing lamp, comprising a burner 28 and lamp body 22 with a lens 24 of red glass in each side. Gas is supplied from the main pipe 27 to the burners 25 through the pipe 26, and to the burner 28 through the intermittent supply device 30 and the pipe 29. A bye-pass tube 32 with an adjustable valve 33 may join the pipes 27, 29. When the combined lamp is used for shop-window lighting, an advertisement or the like may be intermittently exhibited.
Patent GB-536694-A (GB)
Title: Improvements in or relating to pressure charging arrangements in internal-combustion engines
IPC: F02B1/00
Filed: 1939-11-22
Abstract: 536,694. Crank-case compression ; pistons. AKTIEBOLAGET SVENSKA KULLAGERFABRIKEN. Nov. 22, 1939, No. 30608. Convention date, March 1. [Class 7 (ii)] [Also in Group XXVI] Crank-case clearance space is reduced by a closure member21 fitting within the piston ; the member is recessed to permit oscillation of the connecting-rod and fits over the gudgeon pin. The crank-discs are provided with peripheral slots 33, 34 acting as pump admission and discharge ports. The gudgeon pin 24 is recessed to form inner race-rings for rollerbearings 25 ; the outer race-rings 26 project inwardly to fit within the innermost portion of the insert 20 and are retained by spring rings 27.
Patent GB-703318-A (GB)
Title: Improvements in and relating to bread detinning machines
IPC: A21B3/18
Filed: 1952-12-03
Abstract: 703,318. Conveyers. BAKER PERKINS, Ltd. Dec. 3,1952 [Dec. 24, 1951], No. 30633/52. Class 78 (1) [Also in Group VI] Loaves 29 baked in a broadside row of tins 27 secured together by a strap 31 are tipped out by conveying the row over the nose of an endless belt conveyer 15 so that their forward ends fall on to spaced-apart flexible belt conveyers 37, 39 which move in the opposite direction to complete the overturn of the tins whereby the loaves drop out between or outside the belts 37, 39, since these belts are spaced to engage the tin assembly between the loaves which then fall on to a further conveyer. The spacing of the V-belts 37, 39 can be adjusted to suit various widths of tin assemblies by a hand rotated shaft 61 having right and left hand threads to space the belt guides 53, Fig. 6, which induce the belt pulleys 47, Fig. 5 (not shown), to slide accordingly on their splined shafts 49. The V-belts are made of leather or rubber to minimise noise and the wear of shock. The tins are coated with a silicone. The loaves 29 falling on to an endless belt 69 fall over the end and slide down an arcuate metal sheet which rights them and passes them to a final conveyer 79. The empty tins from the conveyer belts 37, 39 fall down a canvas slide 81 similarly to another conveyer 83. Any loaves sticking in the tins pass over drive shaft 49 so that the bread can be removed by hand when convenient. The upper fixing of the slides 75 and 81 is adjustable towards or from the ends of their respective conveyers by a hand operated rack 101 and pinion, the handwheel being provided with a latch 105, Fig. 2 (not shown). The full tins are guided between laterally adjustable side plates 135 adjustable for spacing on a cross shaft 139.
Patent GB-341085-A (GB)
Title: Floor cleaning apparatus
IPC: A47L11/292
Filed: 1929-10-09
Abstract: 341,085. Floor-washing machines. ADAMSON, T. G., 56, Greenwich Road, Greenwich, New South Wales, Australia. Oct. 9, 1929, No. 30669. [Class 138 (i).] Floor-scrubbing machines comprise a wheel driven structure with a prime mover driving a rotary brush 44, a pair of detachable tanks 15 each of which may supply water by a pipe to the floor, a ramp 45 up which the used water is forced by the brush into a sump 46, and a conveyer mop 65 passing round guiding rollers 67 and wringing rollers 69. The belt is driven from the prime mover independently of motion of the apparatus. The tanks are arranged alongside one another and either may be used as a clean water supply or for containing the dirty water which is pumped up from the sump. The brush 44 is of cylindrical shape with the trolley in rows of chevron formation. The mop belt 65 passes over rollers 67 and under a spring-mounted perforated roller 69, the water being expressed and passing through the perforations into a tray 72. From thence it passes by a flexible pipe 79 to the sump.
Patent GB-1471675-A (GB)
Title: Drive linkages
IPC: B60S1/24
Filed: 1974-07-11
Abstract: 1471675 Ball and socket joints ROBERT BOSCH GmbH 11 July 1974 [12 July 1973] 30732/74 Heading E2F In a ball joint assembly for a drive linkage of a motor vehicle windscreen wiper system a socket joint 13 made of plastics material is fitted in a bore 11 of a linkage part 10 of the system, the socket joint 13 being locked in place by a locking ring 14. Tapered retaining lugs 20 engage in corresponding recesses 21 in the linkage part 10 to facilitate the assembly of the socket joint. The locking member may be in the form of a protective cap which embraces the socket joint (Fig. 2, not shown).
Patent GB-903548-A (GB)
Title: An infrared detector and heat transfer device
IPC: G01J5/28
Filed: 1960-09-06
Abstract: 903,548. Cooling devices for infra-red detectors. HUGHES AIRCRAFT CO. Sept. 6, 1960 [Dec. 22, 1959], No. 30749/60. Class 40 (3). To provide cooling for an infra-red detector 14, it is mounted on an artificial sapphire disc 11 (serving as a conductor of heat) which is sealed to a glass tube 10 to form an end thereof, the other end being open to admit a refrigerant. Surrounding this is a glass envelope 17 sealed at one end to the open end of the tube 10 and closed at the other end by a sapphire window to admit infra-red radiation to the detector. The space between the envelope and tube is evacuated and electrodes 16, connected by leads 15 to the detector, are admitted to the envelope by metal to glass seals at the end remote from the window. The detector may be shielded from radiation from all but a desired direction by an apertured opaque shield placed over it, and metal heat shields may be either clamped or indium-soldered to the disc 10. The detector may be mounted on sapphire in the cylindrical wall of the tube with an appropriate window provided in the wall of the envelope and in this case or in the embodiment described above the detector may be inside the tube with refrigerant circulated between the tube and an enclosing envelope. Specification 903,549 is referred to.
Patent GB-409703-A (GB)
Title: Improvements in or relating to apparatus for grading rolling bodies by weight
IPC: B07C5/18
Filed: 1932-11-01
Abstract: 409,703. Sorting rolling bodies by weight. REVILL, J., The Retreat, and GRIGG, B. G., Lynden, Kingswood Way, both in Sanderstead, Surrey. Nov. 1, 1932, No. 30770. [Class 143.] A machine for sorting rolling bodies, e.g. eggs, by weight comprises a balance arm to which they are fed one by one and which is depressed to an extent depending on the weight of the supported body which is delivered to a selected moving platform and thence to a selected inclined runway. Rolling bodies 1, e.g. eggs, rolling down the runway 2 are delivered one by one by the mechanism 7, 8, described below, to the head 3 of the damped balance arm 4 which rotates to a position of equilibrium determined by the weight of the body. An apertured slide 16 with sloping platforms 17, 18, 19, 20 and corresponding different length feelers 22 then descends and according to the position of the balance arm the appropriate feeler 22 engages the knife edge 37 to depress the head 3 and deliver the body 1 on to the corresponding platform. An apertured gate 21 slidably mounted on the slide 16 has a hook 23 which engages the runway 12 as the slide descends so that when the slide reaches its lowest position with platforms 17, 18, 19, 20 in line with sloping runways 12, 13, 14, 15 respectively, the gate 21 has completely uncovered the apertures in the slide 16 for the body 1 to be delivered to the appropriate runway 12, 13, 14 or 15. The rolling bodies 1 are fed one by one to the balance arm 4 by the members 7 and 8 rising and falling in opposition, being connected by the rods 10 to the pivoted lever 9 oscillated by a link 11 connected to a suitable moving part of the apparatus. Power is supplied by an electric motor or other suitable power unit, or manually, to drive the shaft 32 and crank 33 to oscillate the lever 34 about the pivot 35 and thus actuate the pivoted link 36 coupled to the slide 16. In order to damp the downward movement of the balance arm 4 the head 3 has a projection 24 on which rests the brake arm 25 with a pressure adjustable by the weight 26<1>. The arm 25 is rigid with arm 27 having pin 28 engaging, by gravity or spring pressure, a cam 26 with recess 29 allowing the brake arm to be applied to head 3 during its main descending movement, with projecting part 31 momentarily lifting the brake arm, with recess 30 momentarily applying the brake arm and with projecting part 45 finally removing the brake arm. If a body is so light that it does not move the head 3 into the path of the feeler 22 for the platform 17, the slide 16 engages a pin 39 to actuate the lever 40 and connections 42 and 41 to move the head 38 across the head 3 and eject the body into a tray.
Patent GB-854014-A (GB)
Title: Process for the production of a silica pigment
IPC: C08K9/02
Filed: 1958-09-26
Abstract: The water content of a SiO2 pigment which contains bound water is reduced by reacting with an inorganic acid halide, preferably a halide of an element of Group III to VI and of periods 2, 3, 4, 5, or 6 of the periodic table in amount 2-200%. Halides are:-SiCl4, TiCl4, ZrCl4, SnCl4, AlCl3, BCl3, SbCl3, VCl3, VCl5, PCl5, POCl3, AsCl3, AsCl5, and corresponding bromides, fluorides, or iodides, SO2Cl2, SOCl2, and halides of Ge and Nb.  The reaction should be in the absence of liquid water and the free water content may be reduced below 2% by heating at 100 DEG C., or above.  The bound water content may also be reduced by heating to above 350 DEG C.  The silica pigment is finely-divided, amorphous, porous, hydrated SiO2 flocs precipitated from alkali metal silicates containing in excess 80% SiO2, 1 mole bound water per 3-9 moles SiO2, and up to 10% free water, and having an average ultimate particle size below 0.1 micron and surface area 10-600 sq. m./grm.  The pigment may also contain less than 1.75% alkali metal and up to 10% alkaline earth metal, zinc, or aluminium as oxide.  The reaction may be effected by passing vapours of the halide through a bed of silica, or by heating the halide with SiO2 dispersed in a, preferably water-immiscible, solvent, e.g. CCl4, CHCl3, CH2Cl2 or C2H4Cl2, under reflux at 40-200 DEG C.  The halide reacts with bound water to yield a silica pigment containing the element bound as halide, or oxide, groupings with elimination of HCl.  A neutral, hydrophobic, pigment may be obtained by heating the SiO2 containing the element halide with NH3 or an amine, e.g. dimethyl, or diallyl, amine, in the latter case preferably in the presence of pyridine, to form amide groups. Alternatively, the silica pigment may be heated in air at above 100 DEG  to 900 DEG C. to remove some of the halide groups.  The SiO2 may be used as pigments in natural and synthetic rubbers, silicones, "Teflon" (Registered Trade Mark), and greases, and a number of compositions are specified.
Patent GB-536148-A (GB)
Title: Improvements in heat exchangers
IPC: F28F9/00
Filed: 1939-11-27
Abstract: 536,148. Heating air. AKTIEBOLAGET LJUNGSTROMS ANGTURBIN. Nov. 27, 1939, No. 30894. Convention date, Nov. 25, 1938. [Class 64 (i)] An air heater comprises two plate heat exchangers 11, 12 arranged in a furnace flue 10 and so connected by a conduit 16 that the air which traverses the coolest part of the exchanger 12 is passed through the hottest part 21 of the exchanger 11. The part 21 of the plates may be of steel containing 18 per cent. chromium and 8 per cent. nickel ; the other parts of the plates may be of steel containing 5 per cent. molybdenum. The conduit 16 is fitted with partitions 20, 24, and the end of partition 20 is hinged at 22 to control the amount of air passing from the cooler region of the exchanger 12, to the hottest part of the exchanger 11. The parts 21 of the plates are plain, and the remainder corrugated.
Patent GB-1488307-A (GB)
Title: Semiconductor structure and method for making same
IPC: H01L21/00
Filed: 1975-07-24
Abstract: 1488307 Semi-conductor devices RCA CORPORATION 24 July 1975 [2 Aug 1974] 31009/75 Heading H1K A semi-conductor structure for use in fabricating MOS transistors and including at least one semi-conductor island 21, 22, Fig. 7a, on a substrate 11, is made by coating the islands 21, 22 with a protective layer 28, coating the protective layer 28 with a radiation-sensitive material 29, and irradiating the material 29 through the substrate 11 so that, upon developing, given portions of the material 29 form a protective barrier on the islands 21, 22. The semi-conductor may be Si, Ge or a group III-V compound, the substrate 11 may be sapphire, spinel or the same semi-conductor material as the islands 21, 22, the protective layer 28 may be silicon oxide or nitride, or aluminium oxide, and the material 29 may be a photoresist which polymerizes on exposure to UV radiation. The absorption coefficient of the semi-conductor material is at least 1000 times greater than that of the substrate 11 and the intensity of the radiation is such that it is completely absorbed by the thickest parts of the islands 21, 22 so that after developing, the photoresist on these parts only is removed. Etching away the exposed parts of the protective layer 28 and the remainder of the photoresist leaves the islands 21, 22 with the protective layer 28 covering its sides 36, 37, Fig. 9a. This structure may be used to form MOS transistors, by solid-to-solid diffusion from a doped oxide covering, or gaseous diffusion of B or P. Poly Si electrodes may be provided. In an alternative embodiment, by increasing the exposure time by 50% the protective layer 29 may be made to overlap horizontaledge portions of the islands 21, 22 slightly, Fig. 9b (not shown).