baber/WOPTO huggingface dataset:
Patent GB-355570-A (GB)
Title: Improvements in and relating to shaft packings
IPC: F16J15/44
Filed: 1930-10-13
Abstract: 355,570. Stuffing boxes. BRITISH THOMSON-HOUSTON CO., Ltd., Crown House, Aldwych, London.-(Assignees of Phillips, E. M.; 112, Glenwood Street, Lynn, Massachusetts, U.S.A.) Oct. 13, 1930, No. 30629. Convention date, Oct. 12, 1929. [Class 122 (v).] A retaining spring for segmental shaft - packing rings 4 comprises one or more flexible metal strips 9 inserted in each half of the box 3 and carrying pairs of spaced supports 12 for straight springs 13. The ends 10 of the strips are flanged to co-operate with pins 14 and prevent circumferential movement. On assembly the strip is fed into the recess 6 and the springs 13 placed in position as it assumes a curved shape. The invention is shown as applied to the nozzle diaphragm packing of a turbine.
Patent GB-718765-A (GB)
Title: Improvements in or relating to moisture permeable cellulose acetate compositions
Inventor: BRANDNER JOHN DAVID
IPC: C08L1/12
Filed: 1952-12-03
Abstract: A plasticized cellulose acetate composition suitable for the production of wrapping films comprises 65-90 per cent. by weight of cellulose acetate and, as a plasticizer therefor, 5-25 per cent. by weight of a mono-phenyl ether of a polyethylene glycol containing 4-6 oxyethylene groups and from 0-17.5 per cent. of a solvent plasticizer for the cellulose acetate, the sum of the mono-phenyl ether and the solvent plasticizer being 10-35 per cent. of the composition, and the mono-phenyl ether being at least 50 per cent. of that sum.  The composition may be formed into wrapping films which are permeable to water vapour.  The additional plasticizer may be dimethyl or diethyl phthalate, dibutyl tartrate, tricresyl phosphate or methyl phthalyl ethyl glycollate.  Dyes, pigments and volatile solvents, may be incorporated with the composition.  The cellulose acetate may have an acetyl content of 37-42 per cent.  For producing a film-casting solution, the cellulose acetate may be dissolved in a mixture of methyl ethyl ketone, ethyl acetate, dioxane and acetone to form a stock solution, and to this may be added the plasticizer or mixture of plasticizers in the appropriate proportions.  If desired the plasticizers may be incorporated with the cellulose acetate by mixing on hot rolls and the molten mass may be cast as a film on a moving belt or may be extruded through a slit. Alternatively, a viscous solution of cellulose acetate and plasticizers in a volatile solvent may be prepared and then extruded into an evaporative atmosphere.
Patent GB-1001871-A (GB)
Title: Improvements relating to self-oscillating mixer circuits
IPC: H03D7/12
Filed: 1961-08-25
Abstract: 1,001,871. Transistor mixing circuits. TELEFUNKEN PATENTVERWERTUNGS G.m.b.H. Aug. 25, 1961 [Aug. 25, 1960], No. 30644/61. Heading H3T. A self-oscillating mixer particularly for frequency Bands I and III of a television receiver comprises a transistor 1 connected to an I.F. tuned circuit including transformer 6 and capacitance 12, and a circuit 17, 18 tuned to the local oscillations and connected in the capacitive branch of the output circuit for positive feedback at the local frequency via capacitance 19. The apparent inductance of the circuit 17, 18 at the I.F. is small relatively to the capacitive branch of the output circuit and thus has little effect on the running of that circuit. Feedback at I.F. is blocked by the condenser 21 and the ferrite core inductance 20. The circuit shown is adapted for switch tuning of the local oscillator in accordance with the channel frequencies in bands I and III. The value of the inductance 17 is predetermined for the lowest frequency in Band III with the points a, b disconnected and the necessary range of frequencies for the local oscillator corresponding to the higher channel frequencies in the band are obtained by switching appropriate impedances into the circuit at points a, b in parallel with the inductance 17. A capacitor 22, comprising a fixed condenser and a trimming condenser, and the value of which is predetermined for the highest frequency necessary for Band I with the points a, b short-circuited, forms a substantial shortcircuit for frequencies in Band II. For the lower-frequency Band I, impedances appropriate to the channels and having values dependent on the tuned circuit including capacitor 22 are switched in at a, b in a similar manner. Capacitor 24 assists feedback for the lower-frequency band.
Patent GB-854867-A (GB)
Title: Improvements relating to infusers for tea
IPC: A47J31/20
Filed: 1958-09-25
Abstract: 854,867. Tea infusers. SHAW, C. S. May 27, 1959 [Sept. 25, 1958], No. 30646/58. Class 129 A tea infuser comprises a container 3 formed at least partly of gauge 12 in which tea is retained by a closure member 8, the container being permanently secured either directly, or indirectly to a rod 4 which passes up through a tea pot lid 2 and has a knob 6 or the like at its upper end so that the container can be moved through the water in the tea pot. As shown, Fig. 1, the container 3 is elongated.and has on its lower end a cover 8 held by a nut 9 and located in position by apertures engaging pins 11. The rod 4 and an element 5 mounted in lid 2 have co-operating coarse screw threads so that as the rod 4 is reciprocated, container 3 is rotated. In a modification, Fig. 3 (not shown), the container is mounted at the lower end of a sleeve secured to the tea pot lid and enclosing the rod biassing spring. As shown in Fig. 4 a circular container 3 is mounted on rod 4 which slides in a sleeve 5 mounted in lid 2. The cover 81 has handles 34 and a central boss with an aperture 31 which, on being engaged over projections 32 on the lower end of a rod 33 is turned so as to be held in position by the projections. In a modification of the arrangement shown in Fig. 4, the container may have an arcuate door in its side instead of the cover 8. In an embodiment with a circular rotary container, vanes may be provided within the container to promote circulation of the water. As shown, Fig. 10, the container may be mounted on a pivoted member 6 to which a spring biassed rod 62 is connected.
Patent GB-980296-A (GB)
Title: Apparatus for treating hollow articles having one end closed
Inventor: HARPER WILLARD J
IPC: B65G49/04
Filed: 1963-08-02
Abstract: 980,296. Devices for supporting hollow articles. ALBRIGHT & WILSON (MFG) Ltd. Aug. 2, 1963, No. 30722/63. Heading B8H. Hollow articles 10, Fig. 2, are supported closed end uppermost by tubular members 13, 14 so that as they are lowered into a bath of treating fluid 15 the trapped air is expelled through tubes 14, 13, 16 and an orifice 17 to the atmosphere. The arm 16 is raised by a pneumatic ram 22, 23 with a member 20 which seals the orifice 17 and supplies low pressure compressed air to the inside of the vessels 10 to expel the fluid as they are raised from the bath. The compressed air supply is interrupted as the vessels leave the bath to eliminate splashing. Clips are provided to support the articles on the arms and the ends of the tubes have caps with cut-out portions to provide an unimpeded air flow. The ends of tubes not in use are closed by detachable caps 14d, Fig. 6, with valves 14e. Fig. 7 shows a conventional continuous treatment machine in which the arms 16 are raised by an elevator 27 and a conveyer advances each set of arms horizontally from one station to the next. At each station a ram 23 and member 20 pressurize the inside of the vessels as previously indicated. The elevating and conveying apparatus may be as described in U.S.A. Specification 2,196,131 or U.S.A. Specification 2,461,113.
Patent GB-512374-A (GB)
Title: Improved device for filling compression moulds or like spaces with pulverulent materials
IPC: B30B15/30
Filed: 1938-10-24
Abstract: 512,374. Delivering materials from hoppers. NAAMLOOZE VENNOOTSCHAP MAATSCHAPPIJ TOT EXPLOITATIE VAN TEN BOSCH OCTROOIEN N. V. Oct. 24, 1938, No. 30736. Convention date, Oct. 26, 1937. [Class 78 (i)] [Also in Groups V and II] A device of the kind described in Specification 453,010 for filling a compression/mould &c. with pulverulent material by centrifugal force has a preferably adjustable overflow opening in at least one of the walls of the casing, past which opening open cells are moved so as to be brought in succession 'into communication with the opening. The device comprises a bladed wheel 3 rotating in a casing 1 and adapted to project material through an outlet 4 into a space whence it can be transferred by a plunger 5 into a mould 6. Above and on each side of the casing 1 are mounted two cell wheels 10 which receive material overflowing from the openings 15 carry it round and return it to .the casing 1 through a supply opening which is nearer to the axis of the wheel 3 than the openings 15. Fresh material is also supplied to the cell wheels 10 from a hopper 11. The cells may serve only to receive the excess material and may move in a closed path other than circular. The Specification as open to inspection under Sect. 91 comprises also a construction in which the openings 15 are formed in plates which are rotatable on the shaft 9 by means of a lever. This rotation changes the position of the openings and thus varies the thickness of the ring of material in the casing 1. This subject-matter does not appear in the Specification as accepted.
Patent GB-1481316-A (GB)
Title: Air conditioning apparatus
IPC: F24F11/02
Filed: 1974-07-11
Abstract: 1481316 Air conditioning apparatus CARRIER CORP 11 July 1974 [2 Aug 1973] 30760/74 Heading F4V [Also in Division G3] An air conditioning induction unit 10, Fig. 3, comprises heat exchangers 19, 20 supplied respectively with cold and warm water. Primary air is supplied through a duct 15, plenum chamber 14 and nozzle orifices 17 to induce secondary air flow through the unit from a space which is to be air conditioned. The flow path of the secondary air, which is indicated by arrows, is controlled by dampers 27, 26 pivoted at 32 and 33. The dampers can direct the secondary air over one or other or neither of the heat exchangers, Figs. 3, (5 and 4, not shown), respectively. The positions of the dampers are altered by means of a bellows 25 controlled by a bleed-type thermostat 42, Fig. 2, which senses the temperature in the space whose air is to be conditioned. Air for the bellows is supplied from the primary air duct 15 through a filter 39, a pressure regulator 40 and an orifice 41. The regulator 40 maintains downstream thereof a constant air pressure regardless of pressure variations in the duct 15. The thermostat comprises a bimetallic element 43 which, when the temperature rises above a predetermined level, operates to close a bleed-orifice 44 and so increase air pressure to the bellows. The bellows are opened against the pressure of a spring 46, Fig. 3, acting on a plate 45. Connected to the plate are links 28, 30 and 31 which are connected to each other by pins 29 and 47<SP>1</SP>. Attached to the dampers 27 and 26 are links 48 and 49 having pins 34 and 37 located in slots 35 and 36 in the link 31. The links 48 and 49 are connected by a tension spring 38.
Patent GB-483162-A (GB)
Title: Improvements in or relating to apparatus for measuring and delivering variable quantities of granular or powdery material
IPC: G01F11/24
Filed: 1936-11-12
Abstract: 483,162. Delivering measured quantities of granular and like materials. ROSE, A. G., and ROSE BROS. (GAINSBOROUGH), Ltd. Nov. 12, 1936, No. 30850. [Class 106 (v)] Apparatus for delivering measured quantities of granular and like materials comprises a drum with three or more radially disposed measuring pockets or cylinders spaced apart equally and each fitted with a piston, a filling station vertically above the drum axis and a delivery station offset to one side of the wheel at a position spaced circumferentially beyond the filling station by an angular amount equal to the internal between two adjacent chambers. As shown the drum 10 has four measuring cylinders 12 and is rotated intermittently in steps of 90‹. Each cylinder has a piston 13 carrying at its inner end a cross-bar 14 projecting through slots 16 in the side walls of the drum and fitted with rollers 15. As a cylinder moves into position beneath the supply hopper 20 the rollers 15 move into grooves 34 at the ends of a forked lever 26 which is then operated by a cam 30 through a follower 29 and lever 27 to move the piston downwardly to allow the chamber to fill. On a further rotation of the drum the rollers 15 move clear of the arms 26 which are then returned to initial position by a cam 33. The follower roller 29 is adjustable to vary the inward stroke of the piston and hence the amount of material delivered. When the filled chamber moves into the horizontal position the piston is moved outwardly to discharge the cylinder by levers 42 operated by a cam 45 and follower 46. Accidental displacement of the pistons or the levers 26 is prevented by plungers 60 and a friction brake 39, 40.
Patent GB-365534-A (GB)
Title: Non dyeing sulphurized derivatives of phenols
IPC: D06P1/651
Filed: 1930-10-15
Abstract: Metalliferous sulphurized phenols are obtained by treating phenols, their homologues and substitution products other than those containing nitrogen, with metals or metallic compounds of the hydrogen sulphide, ammonia, or ammonium sulphide groups (qualitative analysis) and sulphur in presence of carbonates, hydroxides, or sulphides of the alkali metal group or hydroxides and sulphides of the alkaline earth metal group.  The products are complex compounds, soluble in water, possessing mordanting, tanning, and reserving properties and may be used for making lakes.  According to examples, (1) phenol is treated with ammonium molybdate, sodium hydroxide, and sulphur, stannous chloride, sodium hydroxide and sulphur, antimony pentasulphide, calcium hydroxide and sulphur, potassium dichromate, sodium hydroxide and sulphur, aluminium sulphate, soda ash and sulphur; (2) resorcinol is treated with chromium acetate, sodium hydroxide and sulphur; (3) b -naphthol is treated with tin chloride, sodium hydroxide and sulphur; (4) cresol is treated with tin chloride, sodium hydroxide and sulphur, phenol sulphonic acid is treated with chromium acetate, sodium hydroxide and sulphur, and phenol is treated with tin, sodium hydroxide and sulphur, or stannous hydroxide, sodium sulphide and sulphur, all to give products of the described properties.  Other phenols which may be used are chlor-, sulphonic- and carboxy-substituted derivatives.  Other metals which, or whose compounds may be used, are arsenic, lead, cadmium, iron, cobalt, manganese, nickel, mercury, titanium, uranium, vanadium, bismuth, tungsten, and zinc; the reaction may be performed in stages.
Patent GB-1411455-A (GB)
Title: Method of extracting sugar from molasses by the ion exclusion method
IPC: C13B35/06
Filed: 1973-06-28
Abstract: 1411455 Extracting sugar from molasses by the ion exclusion method PFEIFER & LANGEN 28 June 1973 [29 June 1972 30 June 1972 25 Nov 1972] 30886/73 Heading C6B A method of extracting sugar from molasses comprises passing mechanically purified molasses containing alkaline earth ions over an ion exclusion resin requiring periodic regeneration and eluting the resin with sugar-containing solutions and water, the eluate being taken off in a number of fractions, of which the purest fraction containing substantially no alkaline earth ions is passed on for sugar extraction, at least one intermediate fraction containing minor amounts of alkaline earth ions and some sugar is recirculated as recycled fraction for the elution of the resin, and the fraction of lowest purity containing the majority of the alkaline earth ions is removed from the cycle. When the ion exclusion resin is exhausted, it may be regenerated with the fraction of lowest purity which has been concentrated or with molasses containing from 30 to 70 wt per cent of dry substance. Some of the alkaline earth ions contained in the fraction of lowest purity may be precipitated by double reaction with an appropriate alkali metal salt, before such fraction is used for regenerating the ion exclusion resin. The double reaction may be effected with the ash of waste products from the sugar extraction. The alkaline earth ions may be removed by ion exchange from the intermediate fraction before the elution. Some of the alkaline earth ions may be removed from the mechanically purified molasses by passing it over a cation exchange resin before it is passed to the ion exclusion resin. When the cation exchange resin is exhausted, it may be regenerated with a sugar solution having a potassium content of 4 to 8% of dry substance which may be the concentrated fraction of lowest purity. Before the concentrated fraction of lowest purity is used for regenerating the ion exchange resin, some of the alkaline earth ions may be removed from the fraction by double reaction with an appropriate alkali metal salt e.g. the ash of the waste products from the sugar extraction.
Patent GB-761319-A (GB)
Title: Improvements in or relating to a distributor element for water pipes, gas pipes and the like
Inventor: BRODBECK KARL
IPC: F16K27/02
Filed: 1954-10-26
Abstract: 761,319. Valves. BONIVER, D. Oct. 26, 1954, No. 30921/54. Class 135. In a device for distributing fluid from a main pipe 2 to a branch pipe 1, the bianch pipe lies in a plane perpendicular to the axis of the main pipe and extends partially around the periphery of the latter, and a valve 4 controlling the flow from the main pipe to the branch pipe seats on the periphery of the main pipe and has its stem lying at an acute angle to the general direction in which the branch pipe extends. In order to drain the branch pipe, the latter is extended at 5 and provided with a drain valve 6.
Patent GB-946243-A (GB)
Title: Improvements in or relating to circuitous resistance plate type electric heaters
Inventor: KELLY WILLIAM DUNHAM
IPC: H05B3/74
Filed: 1960-09-08
Abstract: 946,243. Electric hot plates and heating utensils. FERRO CORPORATION. Sept. 8,1960, No. 31007/60. Heading H5H. A surface heating unit comprises top and bottom insulating plates 26U, 26L arranged to contain a coiled resistance heating element within a channel (preferably spiral) in the underside of plate 26U, and integral with the plate 26L are tubular members 113, 114, 115 through which the leads to the heating element pass, the two plates 26U, 26L being held together at their peripheries by suitable clamping means. As described, metal rings 30, 31 are provided as shown, and the ring 31 is further compressed by means of a cap 20 comprising a convex portion 20A containing a flat portion 20B attached to shank of bolt 21 which is tensioned against a suitable mounting by means of nut 22. The plates are of ceramic or high temperature resistant glass. The unit may form the bottom of a heating utensil which may be provided with a liquid pressure thermostatic control device (Fig. 2, not shown).
Patent GB-645709-A (GB)
Title: Improvements in and relating to the production of phosphatic fertilisers
IPC: C05B13/02
Filed: 1947-11-22
Abstract: Phosphatic fertilizers are made by finely grinding phosphate-bearing rocks, especially those containing a high content of iron oxide and/or alumina, mixing the ground rock with natural or artificial sodium sesquicarbonate, with or without additional sodium carbonate, in such proportions that the ratio Na2O:P2O5 in the resulting mixture is between 1.3:1 and 2:1, curing the mixture by maintaining it between 100 DEG  and 700 DEG C for not less than 5 hours and firing the cured mixture at 1050 DEG -1200 DEG C in a closed oven.  The final product may be ground and bagged.  In the firing step the maximum working temperature is preferably maintained for at least 1 hour before the oven is allowed to cool.  In one embodiment water is added in the mixing step and the wet mixture of ground rock and alkaline reagent is kneaded to a thick paste or dough which is then formed into briquettes or pats, the latter being either air-dried until hard or stored before curing.
Patent GB-742629-A (GB)
Title: Improvements in or relating to light ceiling girders
IPC: E04C5/065
Filed: 1953-11-10
Abstract: 742,629. Metal girders. MODERNER BAUBEDARF GES. Nov. 10, 1953 [Nov. 10, 1952], No. 31125/53. Class 20(2). Metal girder, particularly for use as reinforcement in concrete ceiling, comprises an upper chord formed by bending over the upper edge of the web 1 into a tube 5 of triangular or parttriangular section and a lower chord formed of a plate to the corner of a channel 9 in which the web is welded. The lower edge of the web 1 is bent over when it is welded to the channel 9. The tube is completed by connecting the edge 8 to the web by welding or hollow rivets. A reinforcing rod may be welded in the channel 9 or a strip of metal may be welded across it. The metal of the channel 9 may be thinner than that of the flanges 10, 11. In Fig. 5 the upper chord is formed by bending the upper edge of the web 1 at 21, 22 and 24 and openings 25 and bent out parts 26 are provided for embedding in the concrete.
Patent GB-280955-A (GB)
IPC: G06C11/08
Filed: 1927-11-19
Abstract: 280,955. British Tabulating Machine Co., Ltd., (Assignees of Tabulating Machine Co.). Nov. 20, 1926, [Convention date]. Selective punching - machines.-A keyboard punching machine for statistical cards is coupled to, and actuated by, the counter wheels of a card - controlled statistical machine. For key punching, the cards are fed in column steps under a row of punches 8 actuated from an electrically-actuated bail 7 by sliding gags 2. For punching from the counter-wheels of a statistical machine, each key has an actuating-magnet 11 wired to contacts 14<a> on drums 14. Each counterwheel drives a conducting- arm 16 connected to a conducting ring 15 wired to contacts 25 on a bar 26. In operation, an arm on the card-carriage in turn closes each contact 25 to select a drum 14, and the arm 16 selects a magnet 11 to actuate the punch. In changing from hand to machine operation a switch 28 is closed by hand to complete circuit through the magnet for the initial perforation.
Patent GB-341418-A (GB)
Title: Improvements in metal window-frames and windows or casements therefor and the method of manufacturing the same
IPC: E06B3/16
Filed: 1929-10-14
Abstract: 341,418. Window frames. EVANS, J. W., 11, Grosvenor Gardens, London. Oct. 14, 1929, No. 31143. [Class 20 (iii).] A window or sash frame of hollow cross section is made from a foundation plate a pressed or drawn from a single sheet with or without sash bars d and having strips h joined thereto separately or as a framework by folding or lapping the edges of the members as shown to form rabbets for glazing &c. The strips h may be joined by welding the mitred edges and may have weather-excluding grooves g. The frame may have strengthening pieces of wood inserted. The sash bars of the foundation plate may be of T-section the head flange of which is engaged by folded strips.