baber/WOPTO huggingface dataset:
Patent GB-798560-A (GB)
Title: Improvements in and relating to vibrating systems
IPC: B07B1/40
Filed: 1955-11-02
Abstract: 798,560. Sifting apparatus. RUZICKA, J. Nov. 2, 1955 [Nov. 9, 1954; May 31, 1955], No. 31350/55. Class 117 [Also in Group XXIV] A balanced vibratory system comprises three or more aligned masses such as three sifting screens 7, 1, 8, only one of which, such as the central screen 1, is directly oscillated by driving means, the remaining screens being oscillated through resilient elements 9 which interconnect adjacent screens and have stiffnesses such that the amplitudes of adjacent screens are of opposite sense. As shown, each screen is supported by bars 6 and the screen 1 is connected by bars 2 to a motor-driven crankshaft 3 which may be resiliently supported. The screens 7, 8 may in some cases be connected by links 12. Equations are given interrelating the masses, amplitudes and spacings of the screens, the stiffnesses of the elements 9, and the vibration frequency. The system is operated above the critical frequency of screens 7 and 8, and dampers may be provided to restrict the oscillations when passing through the critical frequency. Alternatively the crank shaft 3 may be brought to full speed at zero or small eccentricity and be subsequently adjusted to the required amplitude. The bars 6 may be associated with torsion links. Alternatively the screens may be suspended. The aligned masses or screens may be arranged in a horizontal, vertical or inclined position and may comprise a vibrating conveyer.
Patent GB-526228-A (GB)
Title: Improvements relating to aircraft landing gear
IPC: B64C25/38
Filed: 1938-12-08
Abstract: 526,228. Aircraft landing gear. DOWTY, G. H. Dec. 8, 1938, Nos. 31429/39 and 31430/39. Divided out of 523,663. [Class 4] Aircraft landing gear comprises an endless track unit which is connected to the aircraft by retractable supporting means and is furnished with a shock absorber. The track units are of the kind described in Specification 523,663 and are mounted on a link 6, Fig. 1, the short end (not shown) of which is connected to a shock absorber in the leg 5. The unit is also fitted with a resilient link 11 the length of which can be varied by a jack 10. The leg is moved pivotally, in the plane of the unit, by a jack 20 pivoted at 21 the unit being simultaneously orientated by operation of the jack 10 to bring the track surface 4a in line with the profile of the nacelle in the stowed position. In a modification the unit is moved pivotally in a plane at right angles by a link which is broken by means of a jack. Fig. 3 shows a further form in which the jack 20 breaks a link 26 to stow the unit which is simultaneously orientated by means of a link 38 pivoted at 39 and connected to the upper end of the shock absorber whereby as the leg swings about its pivot the link 43 connecting the end 6a of the lever 6 with the shock absorber is moved outwards.
Patent GB-1242741-A (GB)
Title: Crystalline aluminosilicate and method of preparing the same, and use of same as catalyst
Inventor: KUEHL GUENTER HINRICH
IPC: C01B39/14
Filed: 1968-07-02
Abstract: 1,242,741. Crystalline phosphate substituted aluminosilicates. MOBIL OIL CORP. 2 July, 1968 [5 July, 1967], No. 31477/68. Heading C1A. [Also in Division C5] A solid crystalline aluminosilicate identified by the code ZK-22 has the composition in its dehydrated form expressed in mol. ratios of oxides given by the expression wherein x is from 0.5 to less than 1, M is a positive ion other than tetramethylammonium (TMA), n is the valency of the ion, Y is 2 to 7 and Z is from 0.01 to (Y+2)/48, the aluminosilicate containing unexchangeable TMA ions in the as-synthesized form and being capable of selectively sorbing straight-chain hydrocarbons from an admixture with other hydrocarbons if the number of thermally stable cations per cube defined by the centres of eight adjoining truncated octahedral "sodalite cages" is 10 or less. The aluminosilicate is prepared in the sodium form (M=Na) by providing a reaction mixture containing sources of silicate, phosphate, phosphatoaluminate, hydroxyaluminate, TMA and sodium ions, the composition of the mixture expressed as mol. ratios selected within the ranges and so reacting said mixture as to produce the sodium form of ZK-22. By calcining ZK-22 the TMA ions may be replaced by hydrogen. If calcining is preceeded by ammonium exchange the hydrogen form of ZK-22 is obtained. The calcined and uncalcined forms may be subjected to base exchange, e.g. to give the lanthanum form. The process of preparation of the sodium form is similar to that employed in Specifications 1,060,224 and 1,151,953 but the proportions and conditions are modified to ensure inclusion of TMA ions within the crystal cages.
Patent GB-928153-A (GB)
Title: Improved direct positive photographic emulsions
IPC: G03C1/485
Filed: 1959-09-15
Abstract: 928,153. Photographic emulsions. KODAK Ltd. Sept. 15, 1959 [Sept. 17, 1958], No. 31501/59. Class 98 (2). A photographic silver halide emulsion contains, as desensitizer, a 5-nitroso-pyrimidine of the general formula wherein X is a hydroxyl, mercapto, alkylmercapto, amino or substituted amino group or an alkyl group of 1 to 4 carbon atoms, and Y and Z are hydroxyl, amino or substituted amino groups. The emulsion may be fogged by exposure to light or chemically to give a direct positive emulsion. Specification 667,206 is referred to.
Patent GB-653234-A (GB)
Title: Improvements in or relating to sliding hook fitments
IPC: A47G1/16
Filed: 1948-12-06
Abstract: 653,234. Hooks. WYBROW, R, S. Dec. 6, 1948, No. 31510. [Class 89(ii)] [Also in Group XIV] A sliding hook fixture particularly for use in kitchen cabinets, comprises an aluminium &c. channel bar with one or more slots a that may be in line or staggered. Sheet metal hooks that may be dished at h have the shank part bent over sharply to embrace the web of the channel. To facilitate insertion and removal of the hooks. recesses k may be cut at the ends of the slots or the edge e may be sprung forward. According to the Provisional Specification the part of the hook lying at the back of the channel may be bifurcated one limb being bent upwards and at least one flange may be bent to have an extension parallel with the supporting surface.
Patent GB-715459-A (GB)
Title: Improvements in automatic balancing of horizontal centrifugal extractors
IPC: D06F37/22
Filed: 1952-12-12
Abstract: 715,459. Centrifugal separators. UNITED STATES HOFFMAN MACHINERY CORPORATION. Dec. 12, 1952 [Dec. 29, 1951], No. 31529/52. Class 23 A perforated horizontal drum 12, in a hydroextractor. is driven by a shaft 11, the drum being mounted on bearings 38 which are carried by one or more stub shafts 34 having eccentric portions 34<SP>1</SP>, Fig. 8 which may oscillate in support bearings 32. Balancing pockets 20 are supplied with liquid in accordance with the variation in eccentricity assumed between the support bearings 32 and the drum rotation bearings 38. A tension spring 44 and rod 40 resist the angular movement of each stub shaft 34 which is produced by uneven loading (as of clothing) in the rotating drum 12. Normally the bearings 32 are # in. higher than the bearings 38. A sliding key 37 allows slight relative motion between the shaft 11 and the drum when the latter is oscillated about the support bearings 32. An Oldham coupling may be used instead. Each stub shaft may have two bearings 32<SP>11</SP> or one only. A liquid reservoir 47, on the drum, centrifugally supplies liquid to pipes 50, 52, 54, 56 during rotation and pockets 20, under control of valves 51 which are opened by push rods 58 acted on by sleeves 61. Each sleeve is rotatable on a concentric fixed bearing member 62. Thus when the drum is caused to oscillate, due to uneven loading, the push rods open certain valves 51 to supply balancing pockets with liquid. Each pocket 20 is divided axially by a partition 24. Balancing liquid may be admitted to both portions simultaneously through two valves 51 if the cylinder unbalance is evenly distributed along the length of the drum, or more readily flow into one end section should the condition of unbalance exist more at one end than at the other. When balance in the drum is restored. liquid drains back from pockets 20 through pipes 65, 66 to the reservoir 47. The eccentric means of securing balance may be applied at one end only of a drum, if the latter is of the open-ended type. A sliding door 14 is used to allow the insertion of materials to be centrifuged. A surrounding housing 25, having end walls 26, 27 may hold washing or dry-cleaning solution, a drain valve 29 being provided.
Patent GB-1085888-A (GB)
Title: Method for the manufacture of melamine
Inventor: TSUKAMOTO TADASHI
Filed: 1965-07-23
Abstract: Melamine is manufactured by subjecting urea, ammonium cyanate or guanyl urea in the presence or absence of ammonia to a high temperature and pressure effective to produce melamine, separating the reaction mixture into a liquid phase and a gas phase consisting mainly of ammonia and carbon dioxide at a temperature in the range 345-450 DEG  C. under a pressure not lower than 100 atm. and passing the liquid phase into a zone at atmospheric pressure.
Patent GB-170209-A (GB)
Title: Improvements in safety razors
IPC: B26B21/36
Filed: 1920-11-08
Abstract: 170,209. King, J. L. Nov. 8, 1920. Razors, safety, of the kind having a reciprocating blade to which motion is imparted by a roller frictionally engaging the face of the user. The roller C has a cam-groove c<1> engaging a coneshaped member e<4> on a reciprocating-bar E pivoted at e<2> to the underside of the blade-support B and having a projecting part e<5> extending through a slot in the support and engaging a central opening d<2> in the longitudinal axis of the blade D. The blade is guided on the support by openings d<3> engaging studs d<4> on the latter and may be reversed to use either edge. The blade is yieldingly held on the support by a retaining- member E<1> mounted on the trunnions of the roller C parallel with the length of the blade and controlled by leaf springs c<4> which hold the member E<1> in blade-retaining position or in raised position when removing the blade. The blade support has a number of openings which permit air to pass between the blade and support and prevent the blade from adhering to the surface of the latter. The handle A may be attached to the support at right-angles thereto or in line therewith by engaging one or other of threaded sockets a<1>, a<2>. In a modification, the handle is attached to the support by an adjustable ball- and-socket joint to adjust the inclination of the handle to the support, or the handle may be slit and embrace a toothed sector on the underside of the support, a spring-pressed pawl in the handle engaging the teeth of the sector. The bar E may be pivoted to the upper surface of the support.
Patent GB-465657-A (GB)
Title: Improvements in and relating to electric lamp connectors
IPC: H01R33/02
Filed: 1936-11-18
Abstract: 465,657. Two-part couplings. BRITISH THOMSON-HOUSTON CO., Ltd. Nov. 18, 1936, No. 31611. Convention date, Nov. 20, 1935. [Class 38 (i)] Relates to a cap and holder for a tubular lamp. Each end of the lamp 10 is fitted with a ferrule 12 having a central recess 19, that may be tapered, and into which fit resilient fingers 18 projecting from a contact 16 that is anchored by claws 20 in an insulating cap 17. A tang 21 is formed on the contact 16 and has its edges 22 upturned to increase the area of contact between it and a spring clip 24, 36 in the holder. In the form shown in Fig. 3, the clip 24 is housed in a chamber in the base 23 and is retained therein by a plate 31 secured to the base by rivets 32, 33. A flat extension on the clip is bent up at its end to receive a terminal 27, the bent end also engaging a shoulder in the base 23. In the modification shown in Fig. 7, the clip 36 is riveted to the base 34, the rivet carrying a terminal screw 38 and passing through a boss 35 on which a nut screws for mounting the holder. In either form, two clips may be employed to receive adjacent ends of two lamps as shown in Fig. 2, a wall of insulation extending partially across between them.
Patent GB-341909-A (GB)
Title: Improvements in preparations for treating textile materials
IPC: D06P5/15
Filed: 1929-10-18
Abstract: Compositions are prepared containing a metallic aldehyde-or ketone-sulphoxylate at least partly in a finely divided or dispersed state, as distinct from a state of solution.  The sulphoxylate compounds may be compounds with zinc or the alkaline-earth metals, or the product sold under the registered trade mark "Decroline."  The pure compounds or the crude products as directly prepared may be used.  The dispersion may be effected by grinding with water or other liquid, with or without addition of protective colloids, e.g. starches, gum, or glue, and (or) dispersing agents such as Turkey red oil.  The grinding is preferably carried out at a low temperature in the absence of air, or in an inert atmosphere.ALSO:Compositions are prepared, particularly for use in the production of discharge effects on textile materials, containing a metallic aldehyde-or ketone-sulphoxylate at least partly in a finely divided or dispersed state, as distinct from a state of solution.  The sulphoxylate compounds may be compounds with zinc or the alkaline earth metals, or the product sold under the registered Trade Mark "Decroline."  The pure compounds or the crude products as directly prepared may be used.  The dispersion may be effected by grinding with water or other liquid, with or without addition of protective colloids, e.g. starches, gum, or glue, and (or) dispersing agents such as turkey red oil.  The grinding is preferably carried out at a low temperature in the absence of air, or in an inert atmosphere.  For use as discharging agents, the dispersions may be mixed with thickening agents, with or without other usual additions, such as colloidal clay, zinc oxide, catalysts, colouring matters, and swelling agents. The preparation of the dispersions may also be combined with that of the discharge pastes.  According to an example, gum arabic (1 : 1), china clay, water, methylated spirits, and zinc formaldehyde sulphoxylate are mixed in the order named in a closed ball mill in the cold, and a further amount of gum arabic then added, with further mixing.  Basic and other colouring matters may be dissolved in the methylated spirits.  The application of the products to cellulose ester materials is referred to.
Patent GB-209063-A (GB)
Title: Process of facing sheets or objects of aluminium and its alloys with sheets of heavy metal
IPC: B23K35/36
Filed: 1923-12-18
Abstract: 209,063. Passalacqua, A. Dec. 22,1922, [Convention date]. Sheets; cased or compound forms.-In a process of facing or lining sheets or other objects of aluminium, alloys consisting of aluminium and lead, tin, or zinc, &c., duralumin, and other aluminium alloys, with a heavy metal or alloy, such as copper, lead, silver, nickel, particularly for use in forming receptacles for aviation purposes, the aluminium is first heated to about 100‹ C. and is then cleaned by applying with a metal brush &c. a paste formed by mixing and then boiling a composition consisting of ordinary or distilled water, stannous chloride, aluminium sulphate and chloride, sodium pyrophosphate, ammonium chloride, 10 per cent aqueous solution of caustic soda, stannous sulphate, commercial nitric acid, zinc chloride, potassium cyanide, and ferrocyanide, with a composition consisting of nickel sulphate, ammonium chloride, citric acid, and distilled water, and with a composition consisting of stannic chloride, sodium pyrophosphate, and distilled water and adding a certain quantity of this mixture to a composition consisting of stearic acid, paraffin, wax, resin, lard or vegetaline or analogous fat, and linseed oil and olive oil or other vegetable or animal oils then heated to a temperature between 300‹ C. and 550‹ C., after which the aluminium &c. is coated with a layer of tin, zinc, or other low melting metal or alloy, and the heavy metal part previously cleaned in the same manner or by the use of hydrochloric acid or ammonium chloride is placed thereon and the parts pressed together until nearly cool. Specification 194,729, [Class 82 (ii), Washing granular &c.], is referred to. The Specification as open to inspection under Sect. 91 (3) (a) states that the process is applicable to the facing of sheets other than aluminium or alloys thereof. This subject-matter does not appear in the Specification as accepted.
Patent GB-762773-A (GB)
Title: Improvements in spectacle frames
Inventor: ROSSER GLYNNE DAVID
IPC: G02C5/20
Filed: 1953-11-16
Abstract: 762,773. Spectacle frames. HADLEY CO, Ltd. Aug. 9,1954 [Nov. 16, 1953], No. 31729/53. Class 97(1) Each hinged side piece of a spectacle frame is partly formed by a strip of not more than 0.01 inch thick lying flat against the face and being long enough to extend rearwardly at least to the ear of the wearer or to pass beyond the edge of a gas-mask or like face protector to allow the edge of the latter to fit closely against the face. Thus practically no space is left through which poisonous gas can pass. As shown the strip 3, of stainless steel, is bent at one end into a loop 6 forming a hinge connection with a U-shaped member 5 on the frame 1 and carries at the other end a portion 4 of coiled wire.
Patent GB-266086-A (GB)
Title: Electrical contacts
IPC: H01H1/46
Filed: 1925-12-16
Abstract: 266,086. British Thomson-Houston Co., Ltd., Trencham, H., and Heath, H. C. Dec. 16, 1925. Contacts for oil switches &c. comprise a contacting portion 11 mounted on a flexible support 12 clamped at its upper end to a spring blade 17 which presses the portion 11 against the cooperating contact 16. The lower end of the members 17 is formed with a spherical portion 18 which bears on the member 12 so that the contact 11 is self-aligning and the members 12. 17 are connected by means, such as a bent lug 19 on the member 12 passing through a hole 21 in the member 17, to prevent them from separating. In a modification, the lug 19 is replaced by two lugs which embrace the sides of the blade 17 and engage shoulders thereon. Preferably, several contact fingers 11 are arranged side by side to form one contact, the supports 12 and the biassing blades 17 for them being punched out of single sheets of material as shown in Fig. 2.
Patent GB-175374-A (GB)
Title: Improvements in or relating to dust caps for pneumatic tyre valves and the like
IPC: B60C29/06
Filed: 1920-11-11
Abstract: 175,374. Matthews, R. B. Nov. 11, 1920. Dust caps for tyre valves. -A loose-fitting rubber or pliable dust cap for tyre valves is provided with gripping-means at the foot adapted to lock the cap automatically in position when manual expanding-means are released. In the form shown in Fig. 1, the gripping-means consist of a flat spring band b embedded in the material of the cap and provided with crossed manipulating-extensions e. In a modification, the ring is applied to the outside of the cap, and the inside of the cap is serrated or grooved. The flat spring may be thickened at the back or may be replaced by one or more coils of wire of circular section. The base of the cap may be provided with an extension to cover the rim nut and washer. In the form shown in Fig. 8 the cap is constructed entirely of elastic material and is manipulated by pressing together pairs of projections f.
Patent GB-415018-A (GB)
Title: Improvements in and relating to photo-electric devices
IPC: H01J40/06
Filed: 1932-11-11
Abstract: 415,018. Photo-electric cells. BRITISH THOMSON-HOUSTON CO., Ltd., Crown House, Aldwych, London.-(Assignees of Thomson, H. E. ; 1520, Nott Street, Schenectady, New York, U.S.A.) Nov. 11, 1932, No. 31961. Void [Abridged as open to inspection under Sect. 91 of the Acts, May 29, 1933]. Drawings to Specification. [Class 39 (i).] In a cell in which a light sensitive material is deposited on an oxidized foundation member, the material is sensitized by passing a glow discharge between the cathode and anode in an inert gas such as argon, the anode being positive. The discharge may be at 400-500 volts, and the gas at a pressure of 125 microns. Specification 303,476, [Class 39 (i)], is referred to.
Patent GB-227606-A (GB)
Title: Improvements in or relating to vacuum-insulated vessels
IPC: A47J41/02
Filed: 1923-12-21
Abstract: 227,606. Br³ckner, H. L. O. Dec. 21, 1923. Casings.-Vacuum-jacketed glass bottles 1 are suspended in their casing 3 by a ring 2 or projections on the bottle engaging an inwardly projecting rib 6 or indentations in the casing wall below the usual screwed casing cap 5, which prevents upward movement of the bottle. The usual elastic packing at the bottom and sides may thus be dispensed with. Specification 24594/09, [Class 29, Cooling &c.], is referred to.
Patent GB-845423-A (GB)
Title: Apparatus for manufacturing bag tubes
IPC: B31B39/00
Filed: 1956-10-22
Abstract: 845,423. Perforating webs. ST. REGIS PAPER CO. Oct. 22, 1956 [Nov. 7, 1955], No. 32138/56. Class 31 (2). [Also in Groups XVI and XXXV] A device for perforating a web transversely comprises a toothed blade 77 which is carried by arms 84 on a rotary shaft 79 and co-operates with a grooved roller 80. A longitudinal slitter blade 93 may be provided. The device may be driven at a cyclically variable speed so as to operate on the web at the same speed as the web is moving.
Patent GB-781544-A (GB)
Title: Improvements in musical instruments of the wind family
IPC: G10D9/04
Filed: 1955-11-10
Abstract: 781,544. Wind musical instruments. ANDERSON, T. M., and GOOD, B. E. Nov. 10, 1955 [April 18, 1955], No. 32140/55. Class 88(2). The rotatable hollow rods 4 which carry the keys .5 and pads 7, are biased towards their normal positions, not by the usual needle springs but by torque springs 8, 37 mounted inside the rods 4. One end of each spring rests in a groove in a plug 12 or 35 fixed in the rod 4 and the other end is embedded in a stud 25 or 45 which is held, by means of a screw 29, in any required position in the head 3<SP>1</SP> of one of the supporting pillars 1, 1<SP>1</SP>. The rod 4 may rotate either on ball-bearings 16, 23, Fig. 1, held in place with the aid of a compression spring 17, or on studs 41, 45 secured in the heads 3, 3<SP>1</SP> of the pillars. Modified constructions for the mounting of a plurality of keys and pads are illustrated in Figs. 4 and 5 (not shown).