baber/WOPTO huggingface dataset:
Patent GB-1359896-A (GB)
Title: Method and apparatus for manufacturing bladed members from powder material
IPC: F01D5/28
Filed: 1972-01-19
Abstract: 1359896 Turbine blades ROLLS-ROYCE (1971) Ltd 16 April 1973 [19 Jan 1972] 2678/72 Heading FIT [Also in Division B5] A method of making a bladed member e.g. a nozzle guide vane 2 for a gas turbine engine see Fig. 1 (not shown) comprises hot pressing a first mixture of silicon nitride powder and a fluxing agent e. g. magnesium oxide in a first mould to form an aerofoil portion 4, placing the formed aerofoil portion in a split die 24 so that at least one end protrudes therefrom, placing the die 24 in a second split die 16 of a second mould 10, placing a second mixture of silicon nitride powder and fluxing agent in a shaped portion of the second die 16 so that the end of the aerofoil portion 4 extends therein to and hot pressing the second mixture to form a shroud portion which is amalgamated with the aerofoil portion. As shown, both ends of the aerofoil portion 4 extend into a respective shaped portion of the die 16 so that inner and outer shroud portions 6, 8 may be formed. The aerofoil portion 4 is initially located on a positioning plunger (18), Fig. 2 (not shown) within the die 16 so that the mixture for the inner root shroud portion 6 may be introduced. The mould 10 is then turned over, the positioning plunger (18) removed, and the mixture for the outer shroud portion 8 added. The plungers 22, 20 for hot pressing the inner and outer shroud portions 6, 8 may have plain faces or faces shaped to produce fixing means such as flanges, webs, apertures and dowels in the completed member. The plungers 20, 22 may also have preformed shroud parts (30, 32) Fig. 3 (not shown) attached thereto prior to  pressing so that upon pressing at a pressure of about 1200 p. s. i. and a temperature of about 1750C the preformed shroud parts become amalgamated with the shroud portions 6, 8. The preformed shroud parts (30, 32) may be provided with the above fixing means. The mixture for the shroud portions 6, 8 may be lightly compacted at normal temperature prior to pressing. The mould 10 also includes a susceptor 12 supported on a packing ring (14), Fig. 2 (not shown).
Patent GB-393692-A (GB)
Title: Improvements relating to air heating or cooling devices
IPC: F28D1/02
Filed: 1932-01-29
Abstract: 393,692. Heating or cooling air. BYRNE, E. L. W., 201, Bank Chambers, High Holborn, London.-(Titeflex Metal Hose Co. ; 500, Frelinghuysen Avenue, Newark, New Jersey, U.S.A.) Jan. 29, 1932, No. 2742. [Classes 29 and 64 (i).] Air heating or cooling apparatus, particularly for use in living apartments, comprises a radiator consisting of inlet and outlet headers 6, 7 for the heating or cooling medium, e.g. steam, connected by flexible tubes 11 of the kind described in Specification 101,418 and oscillatably mounted in a frame 1 suspended from the ceiling. The radiator is mounted on tubes 15, 19 supported by ball bearings and connected through elbow-pieces to flexible steam supply and exhaust pipes 18, 22 respectively, and is oscillated through worm-gearing by a motor 26 secured to a bracket 30 carried by the lower header of the radiator. The motor also drives a fan 24 for circulating air over the radiator. An open-ended frusto-conical guide 42, Fig. 4, is provided to secure an even distribution of air over the radiator.
Patent GB-613446-A (GB)
Title: Filter element or unit for air cleaners and method of making the same
IPC: F02M35/024
Filed: 1946-01-28
Abstract: 613,446. Agglutinated fibrous sheets. HOUDAILLE - HERSHEY CORPORATION. Jan. 28, 1946, No. 2749. Convention date, July 5, 1945. Drawings to Specification. [Class 140] [Also in Group XXVIII] A method of making a batt or mat of sisal fibre from which air filters may be cut (see Group XXVIII) comprises fireproofing two to four feet lengths of the sisal with a solution of ammonium sulphamate, curling the damp fibres round a oneeighth inch mandrel to form a single layer coil, drying to set the curl, cutting into two-inch lengths, carding, plasticising with thermosetting or thermoplastic resins and finally baking. Instead of being carded the curls may be air blasted so as to fall through a resin spray into the bottom of a collecting chamber.
Patent GB-759757-A (GB)
Title: Improvements in or relating to furnace fronts for furnaces, boilers, stoves or the like
Inventor: BROWN THOMAS THOMPSON
IPC: F23C5/02
Filed: 1953-01-30
Abstract: 759,757. Oil burners. SWINNEY BROS., Ltd. Jan. 28, 1954 [Jan. 30, 1953], No. 2749/53. Class 75(1). [Also in Group XII] A furnace front comprises an adjustable damper, a flame cone carrier 6 having air-spinning ports 157 and supporting a bush 9 for centralizing a burner within the flame cone carrier, a burner holder 9A adjustably secured to the bush 9 and means for moving the burner holder vertically relatively to the burner to make a metal to metal joint between an oil nipple on the holder 9A and a port in the burner. The bush 9 for centralizing the burner is bolted to the flame cone carrier 6 and has a central projection 63 fitted inside the cone carrier 6 and provided with a pivoted flap 10 adapted to close the bush when the burner is removed. The cone carrier 6 is axially slidable in a bush 8 secured to the front plate 3 of the furnace and is set in adjusted position by a set bolt in the bush 9 engaging a pillar bolt extending from the furnace front through apertures in the cone carrier 6 and bush 9. The burner holder 9A has slots 61, 62 through which pass studs 38, 52 on the bush 9 and vertical movement of the holder is effected by a set screw 9D threaded through an upper part of the holder to abut the burner. The oil nipple on the burner holder and the co-operating burner port have conical engaging faces and to ensure correct alignment of these faces the burner has a pin which engages in a longitudinal slot in the holder and the holder has a pin which engages in a transverse slot in the burner. The flame cone 7 has air apertures 58 and is slidably adjustable on the end of the carrier 6. The damper comprises a cylindrical or barrelshaped slotted member 14 located inside or outside a cylindrical slotted body part 1 of the furnace front and adapted to rotate relatively thereto. The damper is supported by rollers 13 and has a circular rack engaged by a pinion operated by a lever 16. Vanes are provided in the air passage 60 between the burner and the cone carrier 6. The front plate 3 is hinged to the cylindrical body part 1 and has two hinged draft doors 4, 5. Specifications 653,786 and 662,340 are referred to.
Patent GB-682971-A (GB)
Title: Improvements in or relating to the concentration and/or separation of the adrenocorticotrophic hormone
Inventor: MORRIS COLIN JOHN OWEN RHONABW
IPC: A61K38/35
Filed: 1950-02-02
Abstract: The adrenocorticotrophic hormone is purified by dissolving the dry powdered concentrate obtained by protein fractionation of the proteins of the pituitary gland, in aqueous acetic or formic acid of a concentration of N/10 to 4N and subjecting said solution to ultrafiltration or to dialysis through a membrane capable of passing colloid particles of molecular weight of about 8,000 and of retaining colloid particles of molecular weight of about 13,700.  The preferred membrane is regenerated cellulose of mean pore radius 15 Angstrom units and wet thickness 50m .  The concentration of acetic acid is preferably 2N; and of formic acid 0.2N.  The solutions contain 1.25 per cent to 2.5 per cent of the dry concentrate.  A preliminary purification may be obtained by suspending the concentrate in distilled water and dialysing against water; or, alternatively, the suspension may be subjected to ultrafiltration at pH 6 to 7.  The membrane used is similar to that used in the main dialysis or ultrafiltration.  It is washed with aqueous acetic acid or formic acid of N/10 to 4N to remove absorbed hormone.  The ultrafiltration is preferably carried out under an inert gas e.g. nitrogen under superatmospheric pressure and the quantity of solution to be filtered at one time should not exceed 10 ml per sq cm of effective ultrafiltration area.  An article by Tyslowitz Science 98 (1943), 225 is referred to.
Patent GB-395624-A (GB)
Title: Improved toothbrush
IPC: A46B15/00
Filed: 1933-01-30
Abstract: 395,624. Massaging-appliances. CONEY, D. M. and CONEY, Z. T., 209, Post Street, San Francisco, U.S.A. Jan. 30, 1933, No. 2846. [Class 81 (ii).] A toothbrush comprises rows of hair bristles C, Fig. 2, arranged transversely of the stock and rows D, E, of shorter rubber or other resilient bristles outside them. The hair bristles are arranged in rows V-shaped at the ends 2. One set of bristles 6 lies outside the rubber ones. The rubber bristles are shaped as at Fig. 4, being wedged at 3 and serrated at 4 for gum massage purposes.
Patent GB-1129434-A (GB)
Title: Drive for circular knives
Inventor: CECH MILOSLAV
IPC: D01G1/04
Filed: 1967-01-19
Abstract: 1,129,434. Toothed gearing. ELITEX ZAVODY TEXTILNIHO STROJIRENSTVI GENERALNI REDITELSTVI. 19 Jan., 1967, No. 2858/67. Heading F2Q. [Also in Division D1] A drive for a circular knife 5, rotatably mounted on a headpiece 1 which is keyed to a rotary shaft 2, comprises a bevel gear 13 rotatably mounted on the shaft 2, independently of the headpiece 1, and connected to a shaft 6 carrying the knife 5 by a shaft 10, supported by the headpiece 1, and bevel gears 8, 11 and 12. A pulley 20 is integral with bevel gear 13 and is driven from an electric motor 15 by means of a pulley 14 on the motor shaft and a V-belt 16.
Patent GB-510254-A (GB)
Title: Improvements in and relating to apparatus for bending glass sheets
IPC: C03B23/031
Filed: 1938-01-29
Abstract: 510,254. Bending glass sheets. PILKINGTON BROS., Ltd., FORBES, L. J. B., and BIRD, G. W. T. Jan. 29, 1938, No. 2893. [Class 56] An apparatus for bending glass sheets comprises a former composed of wooden slats 1, Fig. 1, supported side by side in a frame 2, the slats being slidable on one another so that their front edges 1a can be adjusted to form a surface of the desired curvature. The slats when adjusted are prevented from moving on one another either by clamping them together by bolts 4 or by abutting their rear edges against a curved template. A glass sheet to be bent may be suspended in a vertical position and pressed between two formers one of which is of the laminar construction described, a concave former 11, Fig. 5, may be of the known type made of battens. The formers are hung on vertical faceplates 14 which are moved to and from one another by hydraulic cylinders 22.
Patent GB-1136098-A (GB)
Title: Solid state laser
IPC: H01S3/07
Filed: 1966-01-21
Abstract: 1,136,098. Lasers. RINGSDORFF-WERKE G.m.b.H. 21 Jan., 1966 [7 May, 1965], No. 2937/66. Heading H1C. The active medium of a laser comprises a unitary or segmented solid body which is rotated or linearly reciprocated adjacent to a slit aperture of narrow width relative to the direction of motion, the aperture passing pumping radiation produced by a pulsed light source so as to cause stimulated radiation to be emitted by discrete zones of the active medium, in turn, as they become aligned with the aperture, the output radiation being obtained from the laser at a fixed position relative to the pumping light source and the aperture. As shown in Fig. 1, the active medium 2 is in the form of a tube and is rotated by a motor 15. An optical resonator is provided by polishing and coating the end faces 5, 6 of the medium, the face 6 being partially transmitting. The pumping source comprises a flash or fluorescent tube 3 which is located at the focus of a semielliptical reflective housing 17, the slit aperture 18 being provided in a continuation of the reflective housing which is part-cylindrical and partially flat in general form, Fig. 2. The pumping source and active medium are separately cooled by circulated liquid or gas, the cooling fluid for the pumping source being confined to axial conduits 25, 26 and an inner transparent casing 24, while the coolant for the active medium circulates between the inner casing and an outer casing 21. The upper end of the outer casing is made of transparent material so that the generated light output 7 can emerge. The active medium can be a one-piece body or a plurality of segmentshaped or circular rods (27), (32), Fig. 3 to 5 (not shown), the rods being separated by thin heat-insulating layers (28). A finned heatconductive cylinder (30) may encircle the rods. The active medium may be ruby, doped glass or synthetic plastics material. A plurality of pumping sources 3c, 3d, Fig. 8, may be used, one within and one outside of the tubular active medium, with their respective slit apertures 18c, 18d in alignment. A further external pumping source 17e may be provided if more than one emergent light beam is required. In a modification, Fig. 9 (not shown), three light tubes (44<SP>1</SP>) are located in a single external reflective housing (43). A modified form of active medium is shown in Fig. 6 which is in the form of spokes 33 attached to a rotated hub 3, 4, each spoke in turn emitting light at 7<SP>111</SP> when aligned with apertured housings 17a<SP>111</SP>, a housing being provided in each side of the rotated spokes. Each housing can extend either from the rotation axis to the periphery or across the diameter of the assembly, two oppositely-directed emergent beams being obtained in the latter case. The ends 39, 40 of each spoke are reflective. In a modification of the embodiments described the reflectors at one end of the active medium are omitted and a fixed external reflector provided. Q-switched operation is then obtained by providing a Kerr cell in the path between the active medium and the external reflector.
Patent GB-900727-A (GB)
Title: Extrusion blowing apparatus
IPC: B29C49/28
Filed: 1961-01-25
Abstract: 900,727. Blow-moulding hollow articles. PHILLIPS PETROLEUM CO. Jan. 25, 1961 [Feb. 1, 1960], No. 2992/61. Class 87(2). A blow moulding apparatus comprises an extruder 34 provided with two spaced die heads 24, 26 to which the plastic material is fed alternately from the extruder through a conduit 36 and a valve 33 operated by a pneumatic cylinder and piston device 39. Mould halves 62, 66 and 71, 72 disposed beneath the heads 24, 26 are moved to envelop a length of the respective extruded tube by pneumatic piston and cylinder devices 60, 64 and 68, 65 and each length is severed by a flexible knife operated by pneumatic pressure and slidable in a bent sheath 81 or 82. Air for inflating the articles being moulded is fed through mandrels passing through the die heads. An electric control system for the pneumatic devices is described whereby the operation of the valve 33, and of the knives the opening and closing of the moulds and the supply of gas for inflation is effected in the required sequence. Each die includes a bushing surrounding the tip of a mandrel and adjustable by screws to correct any undesired variation in the width of the annular die aperture.
Patent GB-1027241-A (GB)
Title: Improvements in and relating to plural-story prefabricated buildings
Inventor: STUCKY FRITZ CHRISTOPH
IPC: E04C3/34
Filed: 1962-01-27
Abstract: 1,027,241. Multi-storey dwellings. ELCON A.G. Jan. 14, 1963 [Jan. 27, 1962], No. 3197/62. Heading E1A. A multi-storey building is constructed from superimposed prefabricated cellular room elements the upright steel frame members 10 of which are hollow and arranged in vertical alignment to define a continuous hollow pillar for the reception of concrete. Each room element comprises at least two opposed walls, roof and a floor, superimposed elements having registering means, if so desired, and adjacent elements abutting to form joints 5 of hollow box section. Pre-stressed reinforcing rods may be incorporated in the concrete. Adjacent roof and floor elements may define a cavity for service conduits. Elements are bolted or riveted together and right-angle joints strengthened by angle plates. Each room unit may be made of reinforced concrete and constructed of upper and lower sections, see Fig. 9, 10 and 11 (not shown), the steel frame members being replaced by concrete upright members of channel section.
Patent GB-455833-A (GB)
Title: Improvements in and relating to insulated electric conductors
IPC: H01B3/30
Filed: 1936-02-03
Abstract: 455,833. Conductors. BRITISH THOMSON - HOUSTON CO., Ltd., Crown House, Aldwych, London. Feb. 3, 1936, No. 3228. Convention date, Feb. 1, 1935. Drawings to Specification. [Class 36] Fibrous insulation is bonded or united to a bare or enamelled conductor by a thin film of alkyd resin, without admixture of shellac. The alkyd resin may be formed from phthalic acid or its anhydride and glycerine, with or without a fatty oil acid and a drying oil. The fibrous insulation may be of cotton, silk, asbestos, glass or paper and may be made into sheets and applied in ribbon form. Specification 370,323 is referred to.
Patent GB-926040-A (GB)
Title: 2-cyano steroids and process for preparation
IPC: C07J75/00
Filed: 1961-01-27
Abstract: The invention comprises 2a -cyano-D 4-3-keto-and 2-cyano-D 1,4-3-keto-steroids, especially those of the general formula:- <FORM:0926040/IV(a)/1> in which C2-C1 is the divalent radical:- <FORM:0926040/IV(a)/2> or <FORM:0926040/IV(a)/3> C3-C11 is the trivalent radical:-  <FORM:0926040/IV(a)/4> <FORM:0926040/IV(a)/5> <FORM:0926040/IV(a)/6> or <FORM:0926040/IV(a)/7> C16-C17 is the divalent radical:-  <FORM:0926040/IV(a)/8> together with a process for their preparation by treating a 2-hydroxymethylene-D 4-3-keto steroid with O,N-bis(trifluoroacetyl)hydroxylamine preferably in the presence of a tertiary amine base to form the 2a -cyano-D 4-3-keto steroid and, if desired, dehydrogenating to introduce the D 1-bond. The dehydrogenation step is effected by chemical methods preferably with 2,3-dichloro-5,6-dicyanobenzoquinone or by the use of micro-organisms.  The invention is illustrated by 22 detailed examples, and specified products include 2a -cyano derivatives of testosterone, deoxycorticosterone, hydrocortisone, cortisone, progesterone, and 20-ethylenedioxy-4-pregnen-3-one and 2-cyano derivatives of 1,4-pregnadiene-3,20-dione and 17b -trifluoroacetoxy-1,4-androstadiene-3-one.  The novel cyano steroids have central nervous system depressant properties of the tranquillizer or muscle relaxant type and may be formulated in tablets, capsules, pills or powders for the alleviation of anxiety. 2a -Cyano-9a -fluoro - 11b ,21 - dihydroxy - 16a ,17a -isopropylidenedioxy-4-pregnene-3,20-dione exhibits glucocorticoid activity.  The intermediate 2-hydroxymethylene-D 4-3-keto steroids are prepared by treating the appropriate D 4-3-keto-steroid with a lower alkyl formate in the presence of an alkaline condensing agent, e.g. sodium hydride or a sodium alkoxide, in an inert solvent at room temperature.
Patent GB-934713-A (GB)
Title: New steroid compounds and processes for their preparation
IPC: C07J75/00
Filed: 1960-01-08
Abstract: The invention comprises 3#x-acyloxy-17a -acyloxy- 17a -hydroxy- 16a -methyl-pregna-11, 20-diones, 3#x,17-dihydroxy-16a -methyl-pregna-11,20 dione, 3#x-acyloxy-17a -hydroxy-16-methylene-pregnan-20-ones and 3#x-acyloxy-17a -hydroxy-16a -methyl-pregn-15-en-20-ones and processes for the preparation of 17a -hydroxy-16a -methyl-pregnan-20-ones having the formula:- <FORM:0934713/IV(a)/1> (wherein R represents either 2 hydrogen atoms or the oxygen atom of a ketone group and R1 represents either hydrogen or an acyl radical) in which a 16b -methyl-16a ,17a -epoxy-pregnan-20-one having the general formula <FORM:0934713/IV(a)/2> wherein R and R1 are as defined above, is treated with a dilute solution of a strong inorganic acid in an organic solvent, and the unsaturated derivative thus formed is thereafter reduced. As strong inorganic acid there may be used hydrochloric acid.  The catalytic reduction may be effected with hydrogen in the presence of palladium black.  The 16,17-epoxy starting compound may be obtained by thermolysis of the 16(C)a , 17(N)a -pyrazoline of 3#x-acyloxy-pregn-16-en-20-one to obtain 3#x-acyloxy-16-methyl-pregn-16-en-20-one and epoxidising this compound with hydrogen peroxide in alkaline medium.  Specification 934,701 also is referred to
Patent GB-270014-A (GB)
Title: Improvements in or relating to tunnelling machines
IPC: E21D9/087
Filed: 1926-02-05
Abstract: 270,014. Manton, A. W., and Price, C. G. Feb. 5, 1926. Tunnelling by boring.-A tunnelling machine comprises a shield and a rotary excavator head carried by a shaft slidable in bearings in the shield and driven through gearing arranged to maintain operative driving connection therewith during relative movement of the excavator and shield, means being provided associated with the shield for moving the excavator independently of the shield and further means for moving the shield independently of the excavator, said means being operable separately or simultaneously during the cutting operation. The shield is advanced by hydraulic rams 2, preferably double acting, and may have outer ribs 7, preferably adjustably pivoted, to prevent rotation. A gear case 4 is fixed to brackets 5, 6 within the shield and motors 17 to brackets 18. The motors, through chain &c. gearing, drive epicyclic &c. gearing within the case 4 whereby a shaft 9, slidably supported in the case, is rotated. The shaft 9 carries the excavator head 8 and is bored out rearwardly to form a hydraulic cylinder 19 in which works a preferably double-acting ram 20 secured to a cap 21 of the gear case, whereby the excavator is advanced independently of the shield. Spoil is raised by buckets 10 on the excavator and delivered through a shoot 11, belt, screw or other conveyer 13, and shoot 14 to a belt conveyer 15. Spades &c. 23 may be forced through the shield to assist in holding the latter when the rams 2 are out of action. An extensible cover 24 protects the shaft 9 from dirt &c. The cylinder 19 may have relief valves to limit the feed pressure and such valves may be controlled by a governor so as to open when the speed' of the motors falls below a given limit. Means may be provided, such as a lever on the shield operated by contact with the excavator, whereby, when the ram 20 is fully retracted within its cylinder 19, the pressure on the rams 3 is automatically cut off, or the shield may engage the excavator through rollers at this time, whereby overrunning of the shield is prevented. Specifications 270,007 and 270,008 are referred to.
Patent GB-757537-A (GB)
Title: Adjustable fastener for securing together under tension the ends of a waist band
IPC: A41F9/02
Filed: 1954-02-04
Abstract: 757,537. Adjustable hook and eye fastenings. GALONSKA, W. O. Feb. 4, 1954 [Feb. 5, 1953], No. 3384/54. Class 43. [Also in Group XXV] An adjustable fastener for securing together the two overlapping end portions of a waistband such as of a skirt or trousers comprises two parts, each having a plurality of integrallyconnected anchor stems 2 made by bending a length of wire into a zig-zag form, and each having a hook member 3 at the front end adapted to engage with any one anchor stem 2 of the other part. The hook may be of wire and formed integrally with the zig-zag part as shown in Fig. 1. A swivel hook 4, Fig. 4, having a bent nose 6, may be provided on one part of the fastener for engaging an anchor stem 2 of the other part.
Patent GB-520174-A (GB)
Title: An improved dry sealing envelope or the like
IPC: B65D27/16
Filed: 1939-02-03
Abstract: 520,174. Envelopes. PIRIE, APPLETON, & CO., Ltd., and WOLFF, H. Feb. 3, 1939, No. 3394/38. [Class 146 (ii)] In a self-sealing envelope wherein one of the stripes 5 of a drysealing material is borne upon a separate sheet 4 adhered to the envelope 2, the protective flap E extends towards the crease line of the sealing flap 3 when the envelope is prepared for sealing. The strip 4 is secured to the envelope over half its area, the outer face of this part carrying the stripes 5. The related stripe 7 may be provided either on a strip 8 secured to the flap 3 or on the flap itself. Strip 4 may be on the flap 3 and stripe 7 or strip 8 on the envelope body.