baber/WOPTO huggingface dataset:
Patent GB-754375-A (GB)
Title: Improvements in or relating to impression taking compositions
Inventor: NOYES STANLEY EDWARD
IPC: A61K6/90
Filed: 1954-03-24
Abstract: A plastic composition for taking dental impressions comprises a gel-forming component, or a mixture of gel-forming components, selected from a water-soluble alginate, a gellable pectin material, and sodium, potassium, or ammonium carboxymethyl cellulose, a metallic salt component, e.g. calcium sulphate, reactive with the gel-forming component or mixture in solution to form an elastic gel, and zinc fluoride uniformly distributed within the composition so that when a plaster cast is made of a dental impression formed in the surface of the composition, the zinc fluoride facilitates the formation of a hard plaster surface.  The metallic salt may comprise calcium sulphate decahydrate, dihydrate or hemi-hydrate, or lead monosilicate, disilicate, basic sulphate, basic carbonate or other lead salt, or a salt of zinc or strontium.  To retard the reaction between the gel-forming component and the metallic salt the composition may contain, either singly or in admixture, sodium carbonate, an alkali metal phosphate or polyphosphate, e.g. trisodium phosphate or polyphosphate or sodium ortho-, meta-, or pyrophosphate, or a metal salt of a tetracarboxy acid of ethylene diamine, as described in U.S.A. Specification 2,657,971.  The composition may also include a filler such as powdered talc, clay, diatomaceous earth, calcium carbonate or silica.ALSO:A plastic composition for taking dental impressions comprises a gel-forming component or a mixture of gel-forming components selected from a water-soluble alginate, a gellable faction material, and sodium, potassium, or ammonium carboxy methyl cellulose, a metallic salt component, e.g. calcium sulphate reactive with the gel-forming component or mixture in solution to form an elastic gel, and zinc fluoride uniformly distributed within the composition, so that when a plaster cast is made of a dental impression formed in the surface of the composition the zinc fluoride facilitates the formation of a hard plaster surface. The gel-forming component is preferably sodium or potassium alginate, and the metallic salt may comprise calcium sulphate, decahydrate, dihydrate, or hemi-hydrate, or lead monosilicate, disilicate, basic sulphate, or basic carbonate, or other lead salt, or a salt of zinc or strontium.  To retard the reaction between the gel-forming component and the metallic salt the composition may contain, either singly or in admixture, sodium carbonate, an alkali metal phosphate or polyphosphate, e.g. trisodium phosphate or polyphosphate, or sodium ortho, meta or pyrophosphate, or a metal salt of a tetracarboxy acid of ethylene diamine as described in U.S.A. Specification 2,657,971.  The composition may also include a filler such as powdered talc, clay, diatomaceous earth, calcium carbonate, or silica.  In an example 0.5 gm. of zinc fluoride is added 72 gm. alkali metal alginate, 220 gm. diatomaceous earth, 7 gm. tetrasodium pyrophosphate and 40 gm. calcium sulphate hemi-hydrate.
Patent GB-969770-A (GB)
Title: Improvements in or relating to lamp signalling devices
IPC: H01H29/20
Filed: 1961-03-09
Abstract: 969,770. Road-traffic signs. R. INSALATA. March 9, 1961 [March 12, 1960; Sept. 26, 1960], No. 8643/61. Heading E1G. A hand signalling device for road users and mounted on a glove 15 comprises a lens 4 illuminated by a battery operated lamp controlled by a switch 6. The device may be mounted on a strap and incorporate an electronic circuit of the multivibrator type operated by a mercury-type switch, see Figs. 1 and 2 (not shown). Again the circuit may incorporate an automatic gravity type switch and a manually-controlled or semi-automatic main switch, see Figs. 4, 5 and 6 (not shown).
Patent GB-946876-A (GB)
Title: Binderú»elastomer emulsions having an acid continuous phase and their preparation
Inventor: FORT JEAN
IPC: C08L21/02
Filed: 1961-03-09
Abstract: An aqueous emulsion containing a bitumen or pitch binder and a natural or synthetic elastomer is prepared by mixing an emulsion of the binder with an emulsion of the elastomer, the pH of each continuous phase being adjusted, before mixing, to pH 2-4.  The binder in water emulsion may be prepared by adding a solution of an oil-in-water type emulsifying agent in molten binder to a solution of a similar, preferably the same, emulsifying agent in water.  Diamines having 18 carbon atoms are preferred and pH adjustment may be effected with hydrochloric acid.  The elastomer emulsion may be prepared by adding an oil-in-water type emulsifying agent, e.g. the condensation products, of ethylene oxide and octylphenol, to an alkaline latex, followed by hydrochloric acid addition.  The mixed emulsions may contain 0.1 to 12% elastomer and 50-70% binder. Examples refer to the mixing of a bitumen emulsion of pH 2.3 with a stabilized natural rubber latex of pH 4, and with a neoprene latex having a pH of 3.5 and containing as emulsifying agent the condensation product of 9 moles of ethylene oxide with one of octylphenol.ALSO:An aqueous emulsion containing a bitumen or pitch binder and a natural or synthetic elastomer is prepared by mixing an emulsion of the binder with an emulsion of the elastomer, the pH of each continuous phase being adjusted, before mixing, to pH 2-4.  The binder-in-water emulsion may be prepared by adding a solution of an oil-in-water type emulsifying agent in molten binder to a solution of a similar, preferably the same, emulsifier in water. Diamines having 18 carbon atoms are preferred and pH adjustment may be effected with hydrochloric acid.  The elastomer emulsion may be prepared by adding an oil-in-water type emulsifier, e.g. the condensation product of ethylene oxide and octylphenol to an alkaline latex followed by hydrochloric acid addition.  The mixed emulsions may contain 0,1-12% elastomer and 50-70% binder. Examples refer to the mixing of a bitumen emulsion of pH 2,3 with a stabilized natural rubber latex of pH 4, and with a neoprene latex having a pH of 3,5 containing as emulsifier, the condensation product of 9 moles of ethylene oxide with one of octylphenol.
Patent GB-961934-A (GB)
Title: Method of producing a luminescent screen
IPC: H01J9/22
Filed: 1960-03-11
Abstract: A method of producing a luminescent screen, particularly a Penetron type screen for cathoderay tube, comprises evaporating in an evacuated enclosure a zinc fluoride or magnesium fluoride phosphor in a region adjacent to a heated screen substrate to cause the evaporated fluoride phosphor to condense on to the substrate, and subsequently evaporating a quantity of an oxygen containing compound, which is reactive with the condensed phosphor to form therewith a luminescent oxygen containing phosphor. The screen substrate can contain a silicate and a surface layer of the substrate is changed into a silicate phosphor by the evaporation of the fluoride phosphor thereon, the fluoride phosphor being superimposed on the silicate phosphor layer.  The quantity of the oxygen containing compound evaporated can be less than stoichiometric, whereby separate layers of fluoride phosphor and oxygen containing phosphor are obtained. The oxygen containing compound can be an oxide of phosphorus, e.g. phosphorous pentoxide, boron or silicon so that the oxygen containing phosphor is a phosphate, borate or silicate respectively.  The fluoride phosphor can be activated by manganese.  The above method can be applied after the process described in Specification 924,922, whereby a three layer screen, the first layer being of manganese-activated zinc silicate, is obtained.  By starting with a titanium oxide coated substrate, the first layer can be of titanium activated zinc silicate.  Multi-layer screens of Zn3(PO4)2:Mn on ZnF2: Mn on Zn2SiO4: Mn emitting red on yellow on green light, and of Zn3(PO4)2: Mn on ZnF2: Mn on Zn2SiO4: Ti emitting red on yellow on blue light are specifically referred to. Apparatus is described for carrying out the present invention and is as described in Specification 934,410.
Patent GB-1038055-A (GB)
Title: Improved connection for pipes to pipe supports or to other pipes
IPC: F16L27/12
Filed: 1964-03-02
Abstract: 1,038,055. Pipe joints; supporting pipes. G. HARRISON. Jan. 27, 1965 [March 2, 1964], No. 8761/64. Headings F2G and F2P. In a joint which permits movement between an inner and an outer element a groove of rectangular cross - section formed in the surface of one element adjacent to the surface of the other houses an elastomeric ring of which the dimensions of cross-section in the direction of the width of the groove is at all times less than the width of the groove and the initial dimension of cross-section in the direction of the depth of the groove is initially greater than that depth, so that relative axial movement between the members will deform the ring within the width of the groove. Fig. 2 shows an expansion joint between pipes 1 and 4 in which the ring 3 is housed in a groove formed at 2 in the pipe 1. A similar arrangement of ring and groove may be formed in a ring- shaped bracket for supporting a pipe (not shown). The ring may be severed so as to be discontinuous.
Patent GB-162506-A (GB)
Title: Improvements in and relating to trays
IPC: A47G23/06
Filed: 1920-03-26
Abstract: 162,506. Heron, W. R. March 26, 1920. Trays; stands.-A waiter's tray having recessed or concave ends a, Fig. 1, is provided with an aperture b by which it may be gripped. The tray may be provided with vertical flanges around the edges and the hole. A bracket or stand for temporarily supporting the tray is provided with a pin g, Fig. 4, adapted to engage the hole b or a separate hole may be formed in the tray for that purpose. The bracket may be hinged to a wall, or a pedestal, Fig. 5, may be provided with two or more curved branches or arms provided with pins m and flanges n for supporting the trays a.
Patent GB-807102-A (GB)
Title: Antioxidant compositions
Filed: 1956-03-22
Abstract: A mixture of antioxidant additives containing (a) one or more of the hindered phenolic type; and (b) 4,41-tetramethyldiaminodiphenylmethane, <FORM:0807102/III/1> , has an antioxidant effect greater than the additive effect of the two ingredients separately when added to lubricating oils.  To obtain the greater effect they should be mixed in proportions that will give between 0.005 and 0.2 per cent by weight of (b) and between 0.005 and 0.8 per cent by weight of (a) when added to the lubricant.  Examples of (a) are: <FORM:0807102/III/2> where R1 is an alkyl group containing 1-4 carbon atoms, R2 is a secondary or tertiary alkyl group containing up to 8 carbon atoms, R3 is an alkyl group containing 1-3 carbon atoms, and R4 is an alkyl group containing 1-8 carbon atoms.  In examples, 2,21-methylene bis - (4 - ethyl - 6 - tertiary butyl phenol), 2,21-methylene bis - (4 - methyl - 6 - tertiary butyl phenol), and 2,6 - ditertiary butyl - 4 - methyl phenol and the mixed products obtained by reacting an alkylated phenol with formaldehyde are each used as the hindered phenolic ingredient in antioxidant compositions according to the invention which are added to an SAE 20 mineral turbine oil having a viscosity of 150 SUS/100 DEG  F.
Patent GB-756089-A (GB)
Title: Improvements in or relating to lighting installations
IPC: E04B9/10
Filed: 1954-03-29
Abstract: 756,089. Cabin and deck lights. STEWART, I. M. March 17, 1955 [March 29, 1954], No. 9046/54. Class 113. [Also in Group X] A lighting installation for a ship includes a ceiling proper 1, Fig. 1, such as an overhead deck, a false ceiling 2 formed by a series of horizontal sheets 3 of translucent material suspended from the structure 1, and illuminating means such as strip lamps 21 located between the ceilings 1 and 2. As shown, each sheet 3 is supported by telescopic tracks 4, Fig. 2, each of which consists of a bar 5 having a central portion 5b of inverted T-section and end portions 6a of I-section, a second bar 6 of I-section aligned with bar 5 and a pair of equispaced bars 7, 8 of inverted L-section which are engaged by connecting piece 9 so as to slide along the bar 5, 6. A sleeve 10 slidably mounted on the lower flanges of bar 5, 6 masks the track 4 from below and has a pin 11 to locate an adjoining sleeve. The tracks 4 are fitted by brackets 12 to supports 13 secured to opposed walls 13a, the tracks 4 adjacent to a wall being secured thereto by a bracket 19<SP>1</SP>. Each track 4 is suspended from the structure 1 by one or more straps consisting of two L-shaped portions 14, 15, which are interconnected at their ribbed ends 16 through slots 17. The tracks 4 are spaced apart by tubular rods 18 having slotted ends which engage the lower portions 16 of straps 14. A draft shield 20, pivoted at one end to each bar 5, may be swung downwardly when the sheet 3 has been unrolled and is in position on the tracks 4, to prevent displacement of the sheet.
Patent GB-401176-A (GB)
Title: Improvements in or relating to screening apparatus
IPC: B07B1/28
Filed: 1933-03-25
Abstract: 401,176. Sifting -apparatus. STEVENS, A. H., 5, Quality Court, Chancery Lane, London.-(Robins Conveying Belt Co. ; Meade Avenue, Passaic, New Jersey, U.S.A.) March 25, 1933, No. 9096. [Class 117.] In vibratory screens of the type described in Specification 312,565, [Class 117, Sifting &c.], the equalizing springs 36, Fig. 1, by which the live screen frame 18 is supported are connected thereto by transverse blade springs 37 which are resilient in the plane of the springs 36 and rigid in the plane at right-angles. The springs 36 are clamped to the ends of beams 33 pivotally mounted on the shaft 13, Fig. 3, by which the gyratory movement is imparted to the frame by eccentrics 14 having a bearing in the end of a tubular strut 19 between the sides of the frame. Adjustable balancing weights 26 are provided on the shaft. The connecting springs 37 are clamped at their central parts to the end cross-beams of the frame. The screen cloth 31 is attached by tensioning bolts to the sides of the frame and may be disposed in two superposed decks. The inclination of the screen is adjusted by swinging the beams 33 about the shaft and securing them by slotted struts 42 and clamping bolts.
Patent GB-1176134-A (GB)
Title: Store Bin Lifting Beam
Inventor: HARVEY ERIC JOHN
IPC: B66C1/66
Filed: 1966-03-02
Abstract: 1,176,134. Cradles for handling storage containers. E. J. HARVEY. 24 Feb., 1967 [2 March, 1966], No. 9100/66. Heading B8H. To lift a storage bin, side arms 4 of a lifting device are slid below side flanges of the bin, and a crane hook is attached to a loop 1 mounted on an inverted U-shaped member 2. Whilst suspended by the crane the rear of the bin can be inserted into a rack, the lifting device lowered and removed, and the bin pushed home into the rack manually. Bins may be removed by reversing this procedure.
Patent GB-435763-A (GB)
Title: A process and method for the production of a soluble synthetic basic slag fertiliser
IPC: C05B13/02
Filed: 1934-03-23
Abstract: A soluble basic slag fertilizer is obtained by melting together phosphate rock with such quantities of a silicious slag or a silicious slag forming material that the finished product will have a silica content of 12--40 per cent, the resulting mass being submitted, whilst still in the molten state, and within the furnace or other holder, to the action of streams of hot or cold air or of superheated steam, or a mixture of air and steam, or to the action of an oxidizing flame, directed under pressure through the molten mass so as to cause agitation thereof.  The air may be enriched with oxygen.  The slag forming material may be limestone with a high silica content or limestone with the addition of free silica or blast furnace or like slag.  Other additions to the charge may be iron oxide, preferably added in the form of scrap iron, alumina, magnesia and alkalies.  The melting process may be conducted in an electric furnace or reverberatory or open hearth furnace but is preferably carried out in a rotary furnace provided at its outlet end with an increased diameter constituting a chamber in which a bath of molten slag is formed which is subjected to the above described treatment. The Specification as open to inspection under Sect. 91 comprises also directing the above referred to gases upon the molten material.  This subject-matter does not appear in the Specification as accepted.ALSO:A soluble basic slag fertilizer is obtained by melting together phosphate rock with such quantities of a silicious slag or a silicious slag forming material that the finished product will have a silica content of 12-40 per cent, the resulting mass being submitted, whilst still in the molten state, and within the furnace or other holder, to the action of streams of hot or cold air or of superheated steam, or a mixture of air and steam, or to the action of an oxidizing flame, directed under pressure through the molten mass so as to cause agitation thereof.  The air may be enriched with oxygen. The slag forming material may be limestone with a high silica content or limestone with the addition of free silica or blast furnace or like slag.  Other additions to the charge may be iron oxide, preferably added in the form of scrap iron, alumina, magnesia and alkalies.  The melting process may be conducted in an electric furnace or reverberatory or open hearth furnace but is preferably carried out in a rotary furnace provided at its outlet end with an increased diameter constituting a chamber in which a bath of molten slag is formed which is subjected to the above described treatment. The Specification as open to inspection under Sect. 91 comprises also directing the above referred to gases upon the molten material.  This subject-matter does not appear in the Specification as accepted.
Patent GB-903805-A (GB)
Title: Key operated combination lock
IPC: E05B35/00
Filed: 1960-03-16
Abstract: 903,805. Combination locks. MARIK, F. March 16, 1960 [April 7, 1959], No. 9347/60. Class 44. A lock assembly comprises a fascia plate 20 rotatable or partly rotatable about a lock casing 55 and carrying on its rear face a plurality of lock mechanism units, each unit consisting of a mounting plate 24, through which passes a shaft 44, a selector wheel 29, a circular rack 35 which is rotatable about the shaft and axially slidable on it, and a spring-pressed detent 36 which prevents this circular rack from rotating, the racks being freed by a key having a number of projecting racks 40 which first lift the detents 36 and then rotate the circular racks 35 a predetermined amount such that the tooth 30 on each selector wheel is aligned with a notch 28 in the associated mounting plate, the resulting freedom of axial movement of the racks 35 then allowing the fascia plate and attached units to rotate in the casing 55 which has a cam profile (Fig. 11), and to rotate a projection 56 to actuate a latch mechanism (the lock combination being alterable) by changing the lengths of the racks 40 in the key, a pin 61 being provided to ensure the correct amount of projection of the racks, the combination of the lock being altered by insertion of the key when the lock is in an unlocked state.
Patent GB-416901-A (GB)
Title: Arrangement on forms for loose-leaf bookkeeping
IPC: B42D11/00
Filed: 1934-01-08
Abstract: 416,901. Book - keeping sheets. HABERFELD, E. O., 46, Sedanstrasse, Weissensee, Berlin. Jan. 8, 1934, No. 9433. Divided out of 415,937. [Class 16.] A loose-leaf bookkeeping sheet having the same form printed on both sides has copying means arranged on the rear side behind the total section so that after the sheet has been folded along its vertical middle line, the total written in a column on the front side of the sheet is at the same time entered in the corresponding column on the rear side, or, without folding the sheet, in the corresponding column of an underlying sheet. As shown, a day-book sheet a is provided with a carbon copying surface d arranged on the rear side at the foot of the booking columns b, b<1>, and with a further carbon copying surface d<1> on the front of the sheet to the left, and such that it is at the foot of the booking columns on the rear of the sheet, and positioned slightly above the other surface d. If the sheet is folded about the line x, x, the totals entered in the columns on the front will be simultaneously entered in the corresponding columns on the rear of the sheet. When the rear of the sheet has been used, the items are added with the total transferred from the front of the sheet, and the sum total entered thereon is transferred bv the means d<1> on to an underlying sheet. If desired, the surface d<1> may be positioned at the top of the front side of the sheet, so that it is behind the head of booking columns on the rear side ; in this case the items on the rear of the sheet will be added from bottom to top. The latter form may be modified by providing a carbon surface which extends over two entry lines, so that the daily total can be placed above or below the sum total; this enables comparisons of daily receipts and expenses to be made. Means for protecting the carbon surfaces on the rear side of the sheet comprises (a) folding back the bottom of the sheet, (b) providing a foldable covering strip, (c) placing the carbon surface on a portion of the sheet which is cut along three sides and is adapted to fold back about the fourth side, (d) embossing the part of the sheet where the carbon surface is disposed, and (e) securing two sheets together, the rear sheet having an opening registering with carbon surface disposed on the rear side of the front sheet.
Patent GB-758392-A (GB)
Title: Improvements in plant for producing caustic lime and kiln for use therein
IPC: F27B7/04
Filed: 1954-03-31
Abstract: A process and apparatus are described for the production of lime by calcination of limestone practising effective utilization of the heat of the reaction.  Thus the ore is crushed, graded and introduced into a rotary drier 30 to remove excess moisture.  The ore is again graded to the desired size for caking, the dust separated and heated in preheater 35.  It then passes into rotary kiln 41 which is 80-140 feet in length, passes through the two heat exchanging sections 55 and 56 and on to the hotter end of the kiln.  It is removed from here, allowed to remain in heat exchanger 58 for a few hours to pass most of its heat on to the air which is drawn through this exchanger, preheater 35 and rotary drier 30.  Figs. 2 and 3 illustrate the heat exchange sections 55 and 56 of the rotary kiln.  Each consists of three cylindrical tubes or chambers, for example the section 55 including regularly spaced chambers 70, 71, 72.  Each of the chambers 70-75 is provided with a steel shell 77 connected to shell 76 by quarter moon shaped segments 78 and 79.  End plates 80 with diameter equal to shell 76 formed by cutting arcuate segments, with axes 120 degrees apart and diameter of shell 77 are welded to the ends of shells 77 in the same planes as segments 78 and 79.  The shells 77 of the chambers 70 to 75 have a diameter greater than the radius of shell 76 and are spaced so that the inner peripheries are spaced away from the axis of 76 and project beyond the arc of shell <PICT:0758392/III/1> <PICT:0758392/III/2> <PICT:0758392/III/3> <PICT:0758392/III/4> 76 to the extent of arcuate segments 78 and 79. The chambers of each section receive preheated limestones as they pass through the lower portion of rotation, i.e. into heat exchange chamber over arcuate end segment 78 and is discharged from tubes 70-75 as it moves to the upper portion of rotation.  The tubes of heat exchange section 55 are staggered at an angle of 60 degrees with respect to section 56 so that the hot gases flow directly against the scalloped end wall of plate 80 and are agitated before proceeding into section 55.  Further turbulence is also created because of offsets formed by segments 78 and 79.