baber/WOPTO huggingface dataset:
Patent GB-1202146-A (GB)
Title: Electrical switch
Inventor: LYNN SCOTT
IPC: H01H15/06
Filed: 1968-02-19
Abstract: 1,202,146. Liquid-break switches. DOW CHEMICAL CO. 19 Feb., 1968, No. 7962/68. Heading H1N. A multiple contact slide bar switch having its contacts immersed in liquid, e.g. oil, includes one or more arrays of contact leaf assemblies 20 on a shaft 18 movable longitudinally between contact plates 12, 14 providing contact surfaces 26, 28, and spaced depressions 24 in surface 26. Each leaf assembly has a C-shaped element 92 on shaft 18 providing arms 98, 100, urged apart by springs 122, 124, and pressure bars 110, 112, to a limit imposed by a clamp element 102. When shaft 18 is moved, for example by a pneumatically driven piston 76 in an air cylinder assembly 78, the elements 92 interconnect or disconnect contact plate 14 and contact surfaces 126 between the depressions 24 of contact plate 12, surfaces 126 having bevelled edge surfaces 128 where arms 98 initially contact them. Oil is circulated through the switch via inlet 48 and outlet 50, and through the various arrays of contact leaf assemblies 20 via bores 54, 56. Plates 12, 14 are secured in liquid-tight manner to the frame 16, 32, by bolts 42, 44.
Patent GB-310149-A (GB)
Title: Improvements in sewage screening and raking apparatus
IPC: E02B8/02
Filed: 1928-03-16
Abstract: 310,149. Hartley, E. March 16. 1928. Strainers comprising grids and gratings.-In apparatus for straining sewage &c. comprising bars S kept clear by rakes R carried by chains passing round sprocket wheels, the axles B, A, of the sprocket wheels D, C, which guide the rakes into contact with the bars S, are arranged on the same horizontal level and above the highest level of the liquid. The wheels D at the approach end of the bars are larger than the wheels C, the bars being inclined accordingly. The ends G of the bars are turned upwards.
Patent GB-977020-A (GB)
Title: Improvements in or relating to moderator structures for nuclear reactors
IPC: G21C5/08
Filed: 1961-03-08
Abstract: 977,020. Moderator structures. COMMISSARIAT A L'ENERGIE ATOMIQUE. March 8, 1961 [March 11, 1960], No. 8047/63. Divided out of 977, 019. Heading G6C. A moderator structure for a nuclear reactor comprises a plurality of parallel adjacent prismatic columns 12 of moderator material, e.g. graphite, around the periphery of which a plurality of rigid pillars 9 form a supporting squirrel cage, the pillars 9 being fixed at one extremity to a seat 2 supporting the columns 12 and at the other extremity to connecting means, and being coupled to the adjacent columns 12 by keys engaging in grooves in the pillars 9 and columns 12. These keys are similar to the keys 14 which connect adjacent columns 12, the grooves being situated in both the side faces and in one pair of opposite corners of the pillars 9 and columns 12. In the embodiment described, each pillar 9 comprises a cylindrical hollow steel post 17 located within stacked graphite bars 18. The posts 17 (Fig. 4) have crowns 19 provided with centering lugs 20 engaging in radial grooves 21 of the bars 18, and are mounted on the seat 2 by means of ball and socket joints 22. At their upper extremities, the posts 17 are secured by links, such as 23a and 23b, one link joining two adjacent pillars with the next link joining one of these pillars to a further adjacent pillar, whereby the links form a chainlike connection between the pillars. The columns 12 and the bars 18 are surmounted by pieces of ballast 29, 29a of steel, for example, and those surmounting the bars 18 are provided with lugs 24 engaging in corresponding holes in the links 23a, 23b. The links 23a, 23b are formed in a steel of low coefficient of thermal expansion while the seat 2 is formed in a steel having a normal coefficient of thermal expansion thus allowing for the difference between the input and output temperatures of the coolant and maintaining the columns 12 substantially vertical in spite of this difference. The links 23a, 23b have fingers 25 projecting to engage with play in recesses 26 in the outer metallic vessel 27 of the reactor in order to limit deformations of the moderator structure arising from radial loads. According to a variation of the above embodiment,the posts 17 are replaced by prestressed tie rods while in another embodiment, each pillar 9 is formed of hollow prismatic bars of metallic material. Specification 913,818 also is referred to.
Patent GB-181684-A (GB)
Title: Improvements in wrenches
IPC: B25B13/50
Filed: 1922-03-20
Abstract: 181,684. Vivarttas, W. O. June 4, 1921, [Convention date]. Pivoted-jaw wrenches.-The handle member 11 of a pivoted-jaw wrench is formed of a sheet-metal stamping, Fig. 4, provided, simultaneously with the cutting of the blank, with. apertures 12 for the pivot pin 13 of the pivoted. jaw 16, small bosses 15, forming stops for the latter when the blank is bent to V-shape along the lines 14, and a tongue 17 to which is secured the end of the spring 18 for normally maintaining the pivoted jaw in closed position. The other end of the spring is hooked over a tongue 21 formed integrally with the jaw 16. In operation, the toothed portion 19 of the jaw 16 coacts with cam edges 24 on the handle member. Two or more pivoted jaws 16 may be provided as shown in Fig. 9 to facilitate gripping an object with an uneven surface, the jaws being separated by partitions 25 held in place by the pivot pin 13 and a bolt 26. Rings 27 loose on the bolt 26 act as stops to limit the inward movement of the jaws, each of which is acted upon independently by a spring. Reference has been directed by the Comptroller to Specification 8376/92.
Patent GB-345802-A (GB)
Title: Improvements in or relating to machines for packing articles into boxes or similar receptacles
IPC: B65B5/04
Filed: 1930-03-13
Abstract: 345,802. Packeting-machines. ROSE, A. G. and ROSE BROS. (Gainsborough), Ltd., Albion Works, Gainsborough, Lincolnshire. March 13, 1930, No. 8104. [Class 94 (i).] In the insertion of articles into boxes, the articles 18 are brought to a loading station in pockets 16 in a conveyer 14. The boxes 19 are fed in a parallel conveyer 15, arranged so that the top of the box is slightly below the level of the bottom of the article. A horizontally acting plunger 20 moves the article into position over the box, where it rests on plates 126, then in a horizontal position, and rotatable about spindles 24. The plates are mounted on a vertical carrier 23, and are rotated by the action of a double rack 28 into vertical positions at the same time as a loading plunger 38 forces the article into the box, the plates acting as guides. The carrier and plates, the latter still in their vertical positions, rise out of the box, the rack 28 rising with them, and the plunger 38 is retracted. The charged box is led away and the carrier and plates lowered, the rack remaining in its raised position and thus turning the plates into their horizontal positions for the next operation. Guides 48 on the carrier assist in positioning the article for the insertion. In a modification, the guides 48 are stationary, being mounted on the machine frame, and are slotted to give a comb-like effect, and the portions 126 of the blades are given a complementary shape so that teeth thereon pass through the slots during the operation of the device.
Patent GB-368526-A (GB)
Title: Improvements in or relating to cases for portable typewriters
IPC: B41J29/13
Filed: 1931-03-16
Abstract: 368,526. Pinless hinges. CLARKE, B. R., 4, Regent Place, Regent Street, London. March 16, 1931, No. 8104. [Class 65 (ii).] In a portable typewriter case a flat lid which also serves as a base for the typewriter is removably secured to the body by means of a tongue or claw 23, formed integrally with a pressed metal lid or attached by a metal plate and screws 24 to a wooden lid 7, and adapted to engage in a slot 25a in the body portion 8 of the case. The slot may be provided by attaching a plate 25 by screws 26 or may be formed actually in the portion 8 of a pressed metal case.
Patent GB-883274-A (GB)
Title: Improvements relating to electrodialytic processes and cells
Inventor: TURNER WILLIAM ALSTON
IPC: C02F1/46
Filed: 1958-03-13
Abstract: 883,274. Electrodialysis. PERMUTIT CO. Ltd. March 6, 1959 [March 13, 1958], No. 8117/58. Class 41. A method of effecting electrodialysis between two solutions flowing in alternate compartments 7, 8 separated by alternate anionic- and cationic-selective membranes in a cell X comprises passing one (or both) solutions in seriesparallel through the compartments at aratehigh enough to ensure thorough mixing in each compartment, part of the (or both) solutions being recycled through the compartments, and fresh solution being fed into the (or each) circuit continuously at 1, 15, and effluent being removed from the (or each) circuit at the same rate at 13, 22. Each liquid flows in parallel through a plurality of series-connected groups of compartments 7, 8, pumps 3, 17 ensuring recycling of the liquids, and stock-tanks 2, 16 receive the fresh and the recycled part of the solutions.
Patent GB-832487-A (GB)
Title: Organosiloxanes
IPC: C07F7/21
Filed: 1957-03-12
Abstract: The invention comprises perfluoroalkyl cyclotrisiloxanes of the formula <FORM:0832487/IV (a)/1> where R is a perfluoralkyl radical containing 1 to 10 carbon atoms.  They are prepared by hydrolysing the chlorosilanes RCH2CH2Si(Me) Cl2 in the usual manner and heating the hydrolysate with an alkali metal hydroxide or salt of a siloxane under conditions which cause the cyclic trimer to distil from the mixture.  Alternatively, when the trimer is crystalline, the conditions are such as to remove the volatile materials, and the distillate is crystallized.  The cracking is generally effected at 200 DEG  to 400 DEG  C., at atmospheric or reduced temperature; at the higher temperatures, a nitrogen atmosphere is preferably employed.  The comounds are useful as lubricants and for the preparation of high polymers and elastomers as described in Specifications 832,488 and 832,489.  The examples describe the preparation of compounds of the above formula where R=CF3, C2F5 and C3F7.  Perfluoroalkyldichloromethyl silanes are prepared by reacting an alkylene RCH=CH2 (R is as above) with methyldichlorosilane in the presence of a peroxide or platinum catalyst at temperatures of 150 DEG  to 300 DEG  C.
Patent GB-740968-A (GB)
Title: Improvements in silicone rubbers
Filed: 1952-03-31
Abstract: A curable elastomeric composition comprises a heat-curable hydrocarbon-substituted polysiloxane having from 1.95 to 2.1 organic groups per silicon atom and as curing agent an azo compound in which the two nitrogen atoms are each connected to an aliphatic carbon atom, preferably one at least being a tertiary carbon atom, the azo compound being present by weight in an amount equal to 0.1 to 10 per cent by weight of the polysiloxane. Specified curing agents are azo-methane, azo-acetonitrile, 2-azo-bis-isobutyronitrile, 2-azo-bis-ethylisobutyrate, and compounds R12R11CN = NCR11R12, where each R1 is hydrogen or a hydrocarbon group and each R11 hydrogen, or a hydrocarbon, nitrile, carboxyl, amide or ester group.  The usual fillers may be incorporated into the composition.  In an example 100 parts of a solid elastic heat-convertible dimethyl polysiloxane obtained from dimethyldichlorosilane containing about 0.15 mol. per cent of methyltrichlorosilane by the method of Specification 594,481 is milled with 200 parts titanium dioxide and amounts of 2 - azo - bis - isobutyronitrile ranging from 0.5 to 2.0 per cent of the polysiloxane.  Figures are given for the tensile strength and elongation after moulding for 20 minutes at 150 DEG  C. and heat-ageing for (a) 16 hours, (b) 96 hours at 200 DEG  C. Specifications 592,018 and 618,453 also are referred to.
Patent GB-555882-A (GB)
Title: Improvements in or relating to domestic refrigerators
IPC: F25D23/06
Filed: 1942-06-15
Abstract: 555,882. Refrigerators. SCHRADER, W. June 15, 1942, No. 8162. [Class 29] A domestic refrigerator of the kind formed of thick concrete with embedded coils of pipe 11 connected in the cold water supply system of a house as described in Specification 485,127, has layers of insulation 12 such as fibre board embedded in the walls adjacent the outside of the coils and it may be also at the back. The door 14 may have embedded insulation or be of insulating material.
Patent GB-843876-A (GB)
Title: Self-sustaining brake for winding apparatus
IPC: B66D3/12
Filed: 1958-03-14
Abstract: 843,876. Self-sustaining gear for block-andtackle. SCHIESS-DEFRIES HEBEZEUGUND KRANBAU G.m.b.H. March 14, 1958 [March 28, 1957], No. 8186/58. Class 78 (5). In a block-and-tackle hoist the load sprocket secured to shaft 1 is driven by hand-chain wheel 2 through a cam carrier 3, mounted on shaft 1, the carrier operating brake shoes 8, 81 to sustain the load at any level. Thus, hand wheel 2 (loose on shaft 1) drives carrier 3 by engagement of projection 14 of the wheel with tongue 6 of the carrier, and carrier 3 drives shaft 1 (and the load) through flat surfaces 4, 4<1> formed on said shaft. At the same time, carrier 3 is.connected to segmental brake shoes 8, 8<1> through cams 5, 5<1> and sliding levers 12, 12<1>. Operation.-The operator rotates hand wheel clockwise (Fig. 1) to cause projection 14 to move tongue 6 up against stop 11 formed on brake shoe 8. With further movement of the hand wheel the load is raised with the brake shoes freely idling. When the hoisting action is finished the back pressure caused by the load compels carrier 3 to rotate anticlockwise and this causes through cams 5, 5<1> a " crow. bar " action upon levers 12, 121, which levers tilt to cause shoes 8, 8<1> to expand against brake rim 9 to brake and thus support the load at the raised level.
Patent GB-1050015-A (GB)
IPC: A22C29/02
Filed: 1964-02-27
Abstract: 1,050,015. Shelling shrimps etc.; tail-on and butterfly shrimps. G. JONSSON. Feb. 27, 1964, No. 8225/64. Heading A2U. In a method and apparatus for removing shells from shrimps or prawns, e.g. headless shrimps, the shell of each shrimp is securely gripped along its ventral side, then ruptured near the tail segment, as by being overstretched or cut, and then slit longitudinally along the back. The fleshy body, with the tail attached, is then displaced longitudinally, e.g. tail-first, in respect to the gripped shell, and thus separated therefrom. The dorsal slit along the shell may be continued almost through the body, so that the resulting tail-on body is in a cloven or "butterfly" form.
Patent GB-689080-A (GB)
Title: External powder scarfing process, product and apparatus
IPC: B23K7/08
Filed: 1951-04-09
Abstract: 689,080. Removing surface metal by blow-pipes. UNION CARBIDE & CARBON CORPORATION. April 9, 1951 [April 18, 1950], No. 8242/51. Class 83 (iv). A process for progressively desurfacing a metal body, e.g. a billet of stainless steel, by directing, against a surface portion thereof, preheating flames and a flat stream of oxidizing gas into which is introduced a gas laden with a combustible powder, e.g. powdered ferrous metal, is characterized in that the powder-laden gas is directed through said preheating flames toward said oxidizing gas stream in a flat stream inclined at an acute angle to said surface portion which is different from the angle at which the said oxidizing gas stream is directed on to said surface. Scarfing apparatus S is mounted on a support F. above the work W. A flat powder nozzle 10 is mounted on a scarfing nozzle 12 having a wide slot 14 for discharging a flat stream 20 of oxygen from a manifold 28 and upper and lower ports 16 and 18 for discharging oxy-acetylene gas jets. The powder nozzle 10 comprises a base 34 and a cover 36 having mating channels forming a tapered slot 40 for discharging the powder-laden gas stream 39 from a flat orifice 41. A powder distributer 42 supplies the powder-laden gas to the nozzle from a gas-tight hopper 52 (Fig. 5) which has a funnel-shaped bottom-portion 60 for guiding the powder P towards an outlet controlled by a valve 64 operated by a diaphragm 66 and a rod 68. The powder flow is controlled by a switch 72 in an electric circuit 74 containing a solenoid 76 which operates a three-way valve 78 in a compressed air line 80 connected to one side of the diaphragm 66. The carrier gas enters the system through an inlet pipe 86 and is directed into two unequal streams. The smaller stream flows through a regulator 92 into the hopper 52 and the larger stream through a regulator 94 and an orifice flowmeter 96 into a chamber 98 surrounding the hopper outlet. The powder flow-rate is controlled by the size of the orifice 62 in the hopper and by the gas pressure differential across this orifice which is indicated by a differential pressure gauge 100. In operation, the powder leaves the hopper 52 through the orifice 62 and through the diaphragm-operated valve 64 into the chamber 98 where it is picked up by the carrier gas stream and enters, through a funnelled bottom outlet 107, a hose 51 leading to the distributer 42. An angularly arranged inlet ensures that the powder flow impinges at an angle against the back wall of the fan-shaped distributer thus uniformly distributing the powder in the gas stream. The scarfing nozzle may make an angle of 30 degrees with the top surface of the work and the powder nozzle an angle of 70 degrees.
Patent GB-1515636-A (GB)
Title: Heating device for space heating
IPC: F24F5/00
Filed: 1976-03-02
Abstract: 1515636 Heating devices; hot water cylinders SVENSKA GEOTHERM AB 2 March 1976 [10 March 1975] 08277/76 Headings F4H F4U and F4A A heating device for simultaneously heating water for the heat exchange radiators of a space heating system and for heating a hot water storage tank 2, comprises a heat pump for receiving heat from a heat reservoir and including a compressor 10, an evaporator adapted to be in heat exchange contact with the heat reservoir, a condenser 5 and an expansion valve; the storage tank 2 having an outlet connection 35 for the supply of hot water; a jacket 3 surrounding the tank 2 and forming therewith a space in which the condenser is disposed; and means including a radiator supply conduit 26 and a return conduit 25 for passing water through the said space. An auxiliary condenser 31 is located in the heat pump circuit after the condenser 5, for additional heat exchange contact with the radiator return water. A bypass conduit 28 is provided between the radiator supply conduit and return conduit; the conduit 28 having a thermostatically-controlled valve 12 for directing water through the bypass. The heat reservoir is preferably a brine device receiving thermal energy from the earth's surface or ambient air. The brine device may also include a helical copper tube 11 wound about the compressor 10.
Patent GB-512831-A (GB)
Title: Improvements in or relating to drinking tubes
IPC: B31B1/74
Filed: 1938-03-21
Abstract: 512,831. Drinking tubes. HATTON, L., and HATTON, F. G. S. March 21, 1938, No. 8299/37. [Class 14 (ii)] [Also in Group III] A drinking tube or straw of glass, metal, paper or the like is made from strips of paper or the like coated with a desired flavouring material and wound into a tube, and the flavouring material may be in an adhesive vehicle which sticks together the overlapping portions. An apparatus for coating preformed tubes internally with flavouring material comprises a horizontal supply pipe terminating in a rotating disc having a number of radial passages leading to the edge of the disc from a central aperture into which the material is supplied.' Each passage carries a tube which is thus filled with material and drained before replacement by a fresh tube. Alternatively the tubes may be carried by an endless belt over a drum feeding the solution to them.
Patent GB-1136349-A (GB)
Title: Improved carbonized or graphitized rayon
Inventor: PERKINS ALAN JAMES
IPC: A01N59/00
Filed: 1967-02-21
Abstract: 1,136,349. Carbonized rayon. GREAT LAKES CARBON CORP. 21 Feb., 1967, No. 8303/67. Heading C1A. Carbonization of rayon is effected by heating the material under non-oxidizing conditions to between 325‹ C. and 390‹ C., preferably between 340-360‹ C., then manually or mechanically flexing the material. Heating under non- oxidizing conditions is then resumed, to above 500‹ C., typically between 500‹ C. and 1200‹ C. to obtain a carbonized product, or to between 2000‹ C. and 3000‹ C. for a graphitized product. The heating rate is typically no slower than 200‹ C./hour, and the material may be cooled to below 40‹ C. before the flexing operation. Viscose rayon is the preferred starting material. The rayon may be in the form of a woven fabric, when the flexing may be carried out both longitudinally and transversely to the fabric. The flexing may be accomplished using calender rolls.
Patent GB-494573-A (GB)
Title: Improvements in and relating to photographic cameras
IPC: G03B7/12
Filed: 1937-03-22
Abstract: 494,573. Photographic cameras with photo-electric exposure meters. RISZDORFER, O. March 22, 1937, No. 8334. [Class 98 (i)] A camera in which the adjusting device of the lens diaphragm or of the shutter is connected with a feeler member which is movable in the path of a movable stop whose movement is controlled by an exposure meter, and is brought into contact with the stop after the latter has been locked, is characterized by the feature that the movable stop is locked by being clamped between two members each having a slot in which the feeler member moves. In the form shown in Fig. 2, a photoelectric cell 1 is connected to the coil 4 of a meter with pointer 11 thickened at 12 to form the stop. A member 13 pivoted at 70 is depressed, when the shutter release 15 is operated, to clamp the stop 12 against the fixed member 19. Projecting through slots in the members 13 and 19 is the feeler member 6 which forms part of the shutter mechanism. When the shutter is released, this member rotates about the axis 72. The extent of the movement up to the stop 12 governs the exposure. In the form shown in Fig. 3, both the setting and release of the shutter and the clamping of the stop are effected by pressure on a single button 59. The button 60 held by a spring 65 moves in a member 61 supported by a stronger spring 63. When the button 59 is depressed, the clamping of the stop 12 is effected by the button 60. Simultaneously the setting knob 55 is actuated through gearing 56, 69 and other gearing (not shown) which engages the rod 58. After a certain movement of the button 59, the teeth 69 disengage the gear wheel 56. On further movement, the shutter is released by pressure of the button 59 on the button 68. The gear wheel 56 is returned to its original position by the return of the setting lever 55. The button 59 is returned by the springs 63, 65, this movement being permitted by the ratchet shape of the teeth 69 and a spring which allows for small lateral displacements of the shaft 57. Specifications 451,659 and 470,863 are referred to.
Patent GB-177056-A (GB)
Title: Method for the evaporation, concentration and drying of solutions of urea
IPC: C07C273/16
Filed: 1921-03-17
Abstract: Urea solutions are evaporated and dried by spraying the solution into contact with a warm gaseous drying medium.  The urea solution, preferably previously concentrated in vacuo, is distributed horizontally in the form of mist into a current of gaseous drying medium, which is so directed as not to disturb the horizontal flow of the mist.  The horizontal distribution, and disintegration into mist, may be effected by dropping the liquid on to a disc revolving at high speed.  Almost completely dehydrated urea is obtained, in granular form, without loss of nitrogen.