baber/WOPTO huggingface dataset:
Patent GB-1006766-A (GB)
Title: A device for osteosynthesis
IPC: A61B17/74
Filed: 1964-05-26
Abstract: 1,006,766. Fracture fixing nails. A. S. GIDLUND. May 26, 1964, No. 21782/64. Heading A5R. A fracture fixing nail 1 is adjustably connected to a support member 7 by a ball joint which may be locked to fix the nail and the support member in adjusted relative positions. A nail for fixing a fractured femoral neck has a conical outermost end 2 having a threaded extension carrying a nut 3. A ball 4 having a conical bore is received on the conical end of the nail and has slits 5 extending from the widest towards the narrowest end of the bore. The support member 7, which has holes 8 for securing it with nails or screws to the outside of the femur, has a socket 6 surrounding the ball and adjustable relative to it. The support member is locked relative to the nail by screwing the nut against the ball, which is thus forced over a wider portion of the conical end of the nail and expands to fix the socket. The socket and the ball have rough interengaging surfaces.
Patent GB-1207234-A (GB)
Title: Reflex thermomagnetic recording process and apparatus
IPC: B41M5/26
Filed: 1968-05-08
Abstract: 1,207,234. Magnetic printing. E. I. DU PONT DE NEMOURS & CO. 8 May, 1968 [8 May, 1967], No. 21850/68. Heading B6C. In a thermomagnetic copying apparatus a magnetized recording member 35 is mounted on a transparent drum and passed between an Xenon flash emitting lamp 25 and a document to be copied which is carried by a flexible belt 22. The member 35 is heated to near Curie point by the direct radiation of a pulse of radiation from the lamp 25 and areas of the member are heated by reflection from the non- image areas of the document to a temperature above the Curie point such that the said areas are demagnetized. This leaves a magnetized image which is developed by toner 27.
Patent GB-442136-A (GB)
Title: Improvements in and relating to conversion products of rubber
IPC: C08C19/04
Filed: 1934-07-26
Abstract: A natural or artificial dispersion of rubber having a metallic oxidizing catalyst, such as a paint drier, dispersed therein is subjected to oxidation.  The rubber obtained by coagulating the oxidized dispersion and drying yields a less viscous solution in solvents than rubber obtained from raw latex, the reduction in viscosity depending on the extent of the oxidation.  These solutions may be used as a vehicle for paints, distempers, varnishes or lacquers; thus a paint may comprise a solution in white spirit of the rubber obtained by coagulating the oxidized dispersion, stand oil, liquid driers and lithophone. Specifications 407,038 and 417,912, [Group V], are referred to. The oxidation may be effected by allowing the latex to stand in air for several days, or by passing air therethrough, or by treating the latex with other oxidizing agents, for example, hydrogen peroxide.  Catalysts specified are zinc, lead, cobalt and manganese linoleates; lead tungate; zinc oleate; cobalt and copper acetate; and copper sulphate.ALSO:A natural or artificial dispersion of rubber having a metallic oxidizing catalyst, such as a paint drier, dispersed therein is subjected to oxidation.  The rubber obtained by coagulating the oxidized dispersion and drying is softer and yields a less viscous solution in solvents than rubber obtained from raw latex, the reduction in viscosity depending on the extent of the oxidation. The oxidation may be effected by allowing the latex to stand in air for several days, or by passing air therethrough, or by treating the latex with other oxidizing agents, for example, hydrogen peroxide.  If necessary, ammonia or other reducer of surface tension may be added to the latex when air is blown therethrough to prevent frothing.  The oxidation with air is facilitated by moderate heating, for example, to 70 DEG  C.  Catalysts specified are zinc, lead, cobalt and manganese linoleates; lead tungate; zinc oleate; cobalt and copper acetate; and copper sulphate.  It is stated that the coagulated rubber may be so soft that it is not possible to handle it in the ordinary machines, in such cases the rubber may be dried in trays or in a machine in which fresh surfaces are exposed to the air. The oxidized latex may be used directly in processes involving dipping or spraying and the rubber obtained by coagulation of the oxidized latex may be used as an adhesive or insulating medium or a solution thereof may be used as a vehicle for paints, distempers, varnishes or lacquers; thus a paint may comprise a solution in white spirit of the rubber obtained by coagulating the oxidized dispersion, stand oil, liquid driers and lithophone.  Specifications 407,038 and 417,912 are referred to.
Patent GB-733437-A (GB)
Title: Process for the recovery of starch from cereal grains
IPC: C08B30/04
Filed: 1952-09-01
Abstract: In recovering starch from a mixture of cell conglomerates, bran particles, free starch particles and gluten, obtained by grinding cereal, e.g. maize, grains, the mixture, preferably freed of particles over 1 mm. in size, is suspended in a liquid and fed under pressure into a vortex separator from which a fraction (a) containing substantially all cell conglomerates over 200 microns in size is discharged through one aperture and a fraction (b) containing substantially all the bran particles is discharged through another aperture.  Free starch and gluten present in the mixture may be removed before it is treated in the vortex separator.  Fraction (a) may contain most of the cell conglomerates having sizes ranging from 100 or 130 to 200 microns and may be ground to liberate starch, gluten and bran from the cells and then subjected to further separation, e.g. by being passed again through the vortex separator. Before fraction (a) is ground, free starch and gluten present therein may be separated from the cell conglomerates, e.g. in a further vortex separator or by screening.  Fraction (b) may be screened to separate coarse bran particles from very fine bran particles, free starch particles, gluten and very fine cell conglomerates.  The vortex separator may be a hydrocyclone, or a vortex chamber, for example as described in Specification 671,943, [Group II].  A number of vortex separators connected in parallel, for example a multihydrocyclone, may be used.  Each fraction may be discharged into a back-pressure chamber described in Specification 693,649, [Group II].  Specification 733,438 also is referred to.
Patent GB-683129-A (GB)
Title: Improvements in or relating to the preparation of 7-halogen sterol esters and of 7-dehydrosterol esters
IPC: C07J9/00
Filed: 1949-08-23
Abstract: A halogenated sterol ester of the general formula <FORM:0683129/IV (b)/1> wherein R1CO is an organic acid radical, R2 is an open chain hydrocarbon grouping and X is chlorine or bromine, is obtained by halogenating a sterol ester with N-chloro- or N-bromo-succinimide in the presence of an alkali carbonate or bicarbonate, e.g. sodium bicarbonate or alkaline earth metal carbonate or bicarbonate.  The 7-dehydrosterol ester is obtained therefrom by treating in an inert solvent, e.g. an aliphatic or aromatic hydrocarbon, with carbonate or bicarbonates of alkali metals or of magnesium.  Examples are given of the preparation of 7-dehydrocholesterol benzoate and 7-bromo-cholesterol benzoate from cholesterol benzoate. Specifications 574,432, 604,328 and 656,115 are referred to.
Patent GB-1277912-A (GB)
Title: Electro-acoustic transducers
Inventor: CRAGG WILLIAM DONALD
IPC: H04R17/02
Filed: 1969-04-30
Abstract: 1277912 Piezo-electric microphones STANDARD TELEPHONES & CABLES Ltd 21 April 1970 [30 April 1969] 21953/69 Heading H4J A bone conduction piezo-electric microphone or receiver comprises a thin disc 1 of piezoelectric material, e.g. a mixture of lead and zirconium titanate, with gold nichrome or silver electrodes 2, 3. The disc is bonded to a metal disc 6 having an acoustic stiffness equal to that of the disc 1 or to a second piezo-electric disc. The discs are polarized by the application of a high voltage and are then bonded together with opposite polarity, Fig. 2 (not shown), or the same polarity, Fig. 3 (not shown). The transducer element may be encapsulated in a rubber sheath and is adapted to be retained by a harness in close proximity to the forehead or cheek. The effect of external noise may be reduced by thickening the coating on the rear of the unit, Fig. 4 (not shown). The transducer may also be used in an ear insert microphone, Figs. 6-8 (not shown) with the element either spring loaded against the side of the ear canal or enclosed in a resilient plastics housing having a driving pip.
Patent GB-1150090-A (GB)
Title: Improvements in or relating to Gripping Means for a Machine Tool
IPC: B23B31/20
Filed: 1965-05-25
Abstract: 1,150,090. Sockets. MOLINS MACHINE CO. Ltd., and J. H. SWARBRICK. 24 May, 1966 [25 May, 1965], No. 22003/65. Heading B3B. In a machine tool, a holder comprises a deformable sleeve 2 for gripping a rod or tool, a fluid-filled annular space 7 around the sleeve and pressure means 11 acting axially on the fluid to cause the sleeve to deform. The fluid may be silicone putty. The spring 11 acts through a piston 10 which can be withdrawn as in Specification 1,035,197. During cutting, the shock forces cause the putty to become solid and resist vibration.
Patent GB-591410-A (GB)
Title: Improvements in the compacting of water-containing concrete masses
IPC: B28B1/08
Filed: 1944-11-09
Abstract: A water containing concrete mass comprising particles of differing sizes is compacted by subjecting it simultaneously or in immediate succession to internally produced vibrating impulses of differing frequency.  The vibrations are produced by means of a number of vibrating devices, e.g., rod vibrators corresponding to at least the number of employed frequencies, each device vibrating at a selected frequency.  At least one vibrator may vibrate at a frequency to influence small particles and at least another vibrator may vibrate at a frequency to influence mainly the large particles of the concrete mass.  The amplitudes of the vibrations of the devices may be adjusted so that a device vibrating with higher frequency has a smaller amplitude than a device vibrating with a lower frequency, whereby a more uniform penetration of the mass by impulses of differing frequencies is attained.
Patent GB-615107-A (GB)
Title: Improvements relating to ball and roller bearings
IPC: F16C33/41
Filed: 1946-07-24
Abstract: 615,107. Bearings. SUPER OIL SEALS & GASKETS, Ltd., and RUDD, R. F. July 24, 1946, No. 22038. [Class 12 (i)] The cage of a ball or roller bearing comprises a resilient annular member of synthetic rubber or like material arranged to serve also as a seal. As shown, an annular synthetic rubber member d is inserted between the inner and outer race rings of a ball bearing assembly, the balls c of which being accommodated in circular holes e cut at the end of narrower slots f in the member d. At its closed face the member d completely seals the gap between the race rings preferably by means of a lip g which may be formed on one or both peripheries of the sealing member. For a roller bearing the holes are cut to conform to the shape of the rollers.
Patent GB-155012-A (GB)
Title: New or improved method of treating peat, brown coal or the like, and apparatus therefor
IPC: C10F5/04
Filed: 1919-09-08
Abstract: 155,012. Goskar, T. A., and Thomas, G. E. Sept. 8, 1919. Peat, preparing; composition fuel.-Peat is mixed with gritty material adapted to pierce its cell walls and the mixture is compressed so that water or sap escapes readily from the peat. The peat product may be coked.
Patent GB-367300-A (GB)
Title: Improvements in or relating to electric discharge tubes
IPC: H01J40/04
Filed: 1931-08-05
Abstract: 367,300. Discharge apparatus. NAAMLOOZE VENNOOTSCHAP PHILIPS' GLOEILAMPENFABRIEKEN, 13D, Emmasingel, Eindhoven, Holland. Aug. 5, 1931, No. 22184. Convention date, Sept. 27, 1930. Drawings to Specification. [Class 39 (i).] In a photo-electric cell or other discharge tube having an electrode containing an alkali metal, one or more other electrodes are coated with a thin layer of mineral oil of high boiling point such as the material known by the registered Trade Mark " Vaseline," or with a layer of evaporated quartz, which prevents the formation of an alkali metal deposit. The ring- shaped anode of a photo-electric cell may be so coated. The Specification as open to inspection under Sect. 91 (3) (a) comprises also the use of other unspecified substances for the same purpose. This subject-matter does not appear in the Specification as accepted.
Patent GB-290479-A (GB)
Title: Improvements in or relating to electric motor controllers
IPC: H02P1/20
Filed: 1927-08-24
Abstract: 290.479. Igranic Electric Co., Ltd., (Cutler-Hammer Manufacturing Co.), Aug. 24, 1927. Master control systems ;automatic starters. - In a controller comprising a number of electromagnetic contactors 2 - - 5 for successively short-circuiting steps of resistance R<2> - - R<5>, each contactor has a restraining magnet Y connected to one of a number of mutually inductive coils 7 - - 10, whereby at each step a transient induced current is produced which delays the next step in succession. All the inductive coils except the first are initially energized by connections across portions of the motor resistance, and each coil in succession when short-circuited through the corresponding resistance contactor carries a transient current due partly to self-induction and partly to mutual induction. The inductive coils are wound on a common core 11 and may be disposed, as shown in the Figure, so that all the fluxes are additive. In a modification, adjacent coils are disposed so as to produce fluxes in opposite directions.
Patent GB-1430425-A (GB)
Title: Semiconductor integrated circuit isolated through dielectric material
IPC: H01L27/00
Filed: 1973-05-10
Abstract: 1430425 Integrated circuits TOKYO SHIBAURA ELECTRIC CO Ltd 10 May 1973 [13 May 1972] 22321/73 Heading H1K The subject-matter of this Specification is described in Specification 1,363,223 but the claims are directed to an integrated circuit comprising a support substrate, at least one dishshaped outer dielectric layer, the upper end of which is open at the top surface of the substrate, enclosing an island region, an inner dielectric layer in the form of an open-bottomed dish, the side walls of which are inclined inwards towards the open bottom, formed within the outer dielectric layer, the island region having an outer semi-conductor region defined between the inner and outer dielectric layers and an inner semi-conductor region, the cross-sectional area of which decreases towards the bottom formed within the inner dielectric layer, at least one device being formed in the island region and including a PN junction, the periphery of which abuts the inner wall of the inner dielectric layer.
Patent GB-282611-A (GB)
Title: Improvement in air line oilers
IPC: F16N7/34
Filed: 1927-08-25
Abstract: 282,611. Ingersoll-Rand Co., (Assignees of Hansen, C. C.). Aug. 25, 1927. Lubricant conveyed by fluid.-In a lubricating device inserted in the air line of a pneumatic machine and operated by the fluctuations of pressure in the line consequent on the operation of the machine, comprising a casing A divided by a wall B into an oil reservoir C and an air passageway D with inter-communicating passages, means located centrally in the passageway D and co-operating with one of the passages is provided for controlling the supply of oil from the reservoir to the passageway. The passageway D has a flared portion O near the inlet end, and a bridge P extending transversely across the flared portion has a longitudinal passage Q, the axis of which coincides with that of the passageway D. The passage Q communicates with the reservoir C by a passage R which is controlled by an adjustable valve U arranged in the bridge P. Access to the valve is obtained by removing a plug c in the casing. A passage d at the other end of the passageway communicates with the reservoir and contains a non-return valve e, while a small passage g leading from the passageway D communicates with the passage d behind the valve e. The device will function even if it is tilted; for instance, if tilted so that the flared portion 0 is uppermost, air will flow through passage R to the reservoir and oil will pass through the passage g to the passageway D.
Patent GB-590613-A (GB)
Title: Improvements in or relating to the production and separation of tertiary olefins
IPC: C07C7/148
Filed: 1944-11-14
Abstract: Tertiary olefins are separated from C4 or C5 hydrocarbon mixtures by treating, in the presence of an acid alkylation catalyst, with a phenolic solvent in which the olefins have a molecular percentage solubility of not less than 20 per cent, the molar ratio of solvent to olefin being not less than 3 to 1, stripping dissolved hydrocarbons from the solvent, heating the stripped solvent to 350-475 DEG  F. to decompose the addition compounds formed by the tertiary olefins, separating the liberated olefins and recycling the solvent.  Cresol is the preferred solvent and aryl sulphonic acids the preferred catalysts.  With cresol and tertiary amylenes the solubility should be maintained at 20 mol. per cent and the molar ratio of cresol to amylenes at 5-7 : 1.  With isobutene, the figures are 39 mol. per cent and 3-4 : 1.  Treatment with the solvent is effected at 150-250 DEG  F. and 0-80 p.s.i., with a residence time of at least 30 mins. for amylenes and 15 mins. for isobutene, while stripping is effected with a hydrocarbon fraction consisting largely of the desired tertiary olefin at 210-300 DEG  F.  A C5 cut is freed of diolefins, vaporized, and passed at 230 DEG  F. up a tower in counter-current to a stream of cresol and toluene sulphonic acid, the latter forming 1.6 mol. per cent of the mixture.  Cresol containing tertiary alkyl cresols and dissolved paraffins and olefins is stripped by flowing downwards against a gas consisting mainly of tertiary amylenes, if desired while reducing the pressure.  The stripped gases pass to the solvent extraction tower while the alkyl cresols are heated at about 400 DEG  F., the products being treated to separate tertiary amylenes from cresol which is recycled. Products formed by reaction of normal amylenes and pentadiene with the cresol are not decomposed and part of the cresol is passed to a fractionator where material boiling above 410 DEG  F. is removed. Tables show the effects of varying the solvent to olefin ratio, solubility, and other reaction conditions.
Patent GB-701972-A (GB)
Title: Improvements in or relating to the wet spinning of natural fibres
IPC: D01H1/08
Filed: 1950-09-13
Abstract: 701,972. Centrifugal spinning. BOLELLI, A., [trading as OFFICINE MECCANICHE FRATELLI BOLELLI]. Sept. 13, 1950 [Feb. 1, 1950; June 6, 1950], No. 22509/50. Classes 120(2) and 120(3) The wet spinning of natural fibres, such as flax, hemp- and ramie, is effected in a centrifugal machine having a rapidly rotating pot with an axially bored cover formed with a flange projecting into the pot against which flange a sheet of resilient material presses to form a cylinder within which a package of yarn is wound. A roving 12, drawn from a creel 20, passes through a trough 25 containing hot water to drawing rollers 21, then to a yarn-guide 3 and a spinning pot 2 provided with a cover 4 having a central aperture and a depending flange surrounding the upper part of a resilient membrane 5. The guide 3 is traversed by a heart cam 9 through a sector member flexibly associated with a guide rod 8 which carries a support 7 having a yarn-guide lever 6 pivoted to it. By means of a handle 13, the guide 3 may be lifted from its operative position for doffing or piecing. If the yarn breaks, a reserve length of yarn, approximately 50 cm. long, is passed through the guide 3 while the latter is in inoperative position. The guide 3 is then inserted into the pot and the reserve length of yarn is caught up on the inside of the yarn mass and twisted, whereupon the manually held end is applied to the roving issuing from the drawing rollers. When the spinning pot is to be doffed, the guide 3 is moved out of the pot 2 and the yarn is cut between the guide 3 and the pot 2 whereupon the membrane 5 and the yarn mass are raised by lifting the cover 4. In order to free the yarn mass, it is squeezed by a pincer device so that the cover 4 may be removed. On opening the pincer device, the resilient membrane 5 releases the yarn mass, into the central hole of which a further resilient membrane will preferably have been inserted.
Patent GB-227482-A (GB)
Title: Improvements in ribs, cross members and the like for aircraft
IPC: B64C1/06
Filed: 1924-06-10
Abstract: 227,482. Mooney, D. J. June 10, 1924. Addition to 195,726. Framework.- Structural members for aircraft wherein a continuous bracing strip is employed as described in the parent Specification, have the strip made of channel section of only sufficient gauge to take tension stresses, those parts which are in compression being reinforced by additional channel or fiat strips without interlocking edges abutting against or riveted to the booms. Alternatively open tubular, angular or semicircular bracing may be used and strengthened at the parts in compression as shown in Figs. 2, 7 and 8. The remaining parts of the bracing-strip may be lightened where necessary. Specification 195,825 is referred to.
Patent GB-994457-A (GB)
Title: Improvements relating to exterior rear-view mirrors for vehicles
Inventor: DAY JOHN ANTHONY
IPC: B60R1/062
Filed: 1960-06-28
Abstract: 994,457. Reciprocating pumps. DESMO Ltd. June 27, 1961 [June 28, 1960], No. 22542/60. Heading F1A. [Also in Division B7] Relates to a liquid pump for operating a hinged movable part carrying a mirror in a remotely controlled rear-view vehicle mirror device (see Division B7). The movable part 20, Fig. 18, is raised from the inoperative position shown in Fig. 16 by supplying oil under pressure to a cylinder 69 from the pump 61 and pipe 68, the pump being operated by a solenoid 59 energized cyclically by a "flasher unit" 58 through a time delay switch 83 from the vehicle battery 60, the switch maintaining its contacts closed for a predetermined time after manual operation. As shown in Fig. 17, the solenoid 59 operates a plunger 62 against the urge of a spring 73 to move the piston 63 of the pump 61 in a bore 64. Fluid is supplied to the bore from a reservoir 65 and pipe 66 and leaves the bore 64 through a non-return outlet valve 67 and passes through the pipe 68 to the cylinder 69. The solenoid is energized repeatedly during a period sufficient to produce a working pressure of 30 1b./sq. inch which is sufficient to maintain the mirror raised against spring action. When the switch 83 opens the mirror is retained in the raised position by the maintaining of the pressure in the pipe 68 and cylinder 69 because of the non-return valve 67. However on energizing the solenoid again the pressure is increased to about 50 1bs./sq. inch which is sufficient to open a relief valve 75 against the action of a spring 77, adjustable by a screw cap 78. When the valve 75 is opened the fluid pressure acts on an annular flange 80 which is of such an area that the valve will remain open even when the pressure falls below the 30 1bs./sq. inch necessary to maintain the mirror raised and when this occurs the mirror is returned to its inoperative position by a spring (not shown). The pump may be pneumatically operated.