baber/WOPTO huggingface dataset:
Patent GB-1444960-A (GB)
Title: Dry shavers
IPC: B26B19/28
Filed: 1973-08-23
Abstract: 1444960 Dry shavers GILLETTE CO 23 July 1974 [23 Aug 1973] 39962/73 Heading B4B [Also in Division H2] A dry shaver comprises a cutter head 1, 2 means 4 mounting the cutter head for rotation about the axis of a cylindrical arcuate cutting surface defined by the cutting edges of blades 1, and driving means for rotationally reciprocating the cutter head about the axis, the driving means comprising an electrodynamic motor including a permanent magnet system 6, 7 and an electric coil system 5, one of the systems being mounted on the cutter head. As shown in Fig. 1, the cutting head is connected to a frame 3 by leaf springs which define the rotational axis and urge the cutter about the axis to a normal rest position. The leaf spring may also be used to urge the cutting edges into contact with an arcuate shearing foil (not shown); alternatively, the blades may be individually spring-loaded. Electric coils 5 are secured to the cutting head and co-operate with permanent magnets 6a-6c and 7a-7c such that when an alternating current is supplied to the coils 5, the cutting head is caused to oscillate; alternatively the supply current may be derived from a battery via an electronic control circuit delivering a succession of current pulses. The pulses may be adjusted to match the resonant frequency of the cutting head assembly. In the modification shown in Fig. 3, the cutting head is rotatable on a shaft 9 and urged to a rest position by leaf springs 4a. In a further modification, the cutting head may be transversely divided into two separate heads, each with its respective coil-and-magnet assembly arranged to oscillate the two cutting heads in antiphase thereby reducing vibration; alternatively a one-part cutter may be used, the second coil being used to drive a counterweight in antiphase to the cutter. In all the embodiments the position of the coils and magnets may be reversed.
Patent GB-898562-A (GB)
Title: Headlight control apparatus
IPC: B60Q1/14
Filed: 1958-12-11
Abstract: 898,562. Headlight control. ELECTRONICS CORPORATION OF AMERICA. Dec. 11, 1958 [Dec. 30, 1957], No. 39996/58. Class 40(3). Apparatus for vehicle headlight control of the type which automatically switches the lights from a bright to a dim condition when the lights of an approaching vehicle are sensed, including a switch 45, which in one position allows automatic operation of the apparatus and in its other position locks the headlights in a condition opposite to that stipulated, at the time of switching, by the sensing means. On automatic operation, with no approaching vehicle, photo-cell 33 has a high impedance hence valve 19 is nearly cut off, relay coil 17 is de-energized and bright filaments 5 are supplied via relay contacts 11 and 13. The lights of an approaching vehicle lower the impedance of the cell and the valve 19 conducts. Relay 17 is energized and the dim filaments 7 are supplied via contacts 13, 15. If switch 45 is operated when power is automatically applied to the bright filaments, a positive charge on condenser 55 is applied to the valve grid, the valve conducts and power is changed over to the dim filament. The valve is held in this condition by a positive bias applied via resistor 53. If the switch is operated when power is supplied to the dim filament, uncharged condenser 55 is connected across the valve grid, the valve conduction drops and the relay switches power to the bright filament. The valve is maintained in this near cut-off condition by the voltage drop across resistor 53 and the lamp filament 7.
Patent GB-1154696-A (GB)
Title: Improvements in Centrifugal Clutch.
IPC: F16D43/18
Filed: 1966-09-08
Abstract: 1,154,696. Friction clutches. GENERAL ELECTRIC CO. 8 Sept., 1966 [13 Sept., 1965], No. 40187/66. Heading F2C. Relates to a centrifugal friction clutch used in an automatic clothes washing machine and selectively maintaining, for a given load, one of two alternative predetermined constant output speeds, wherein friction shoes 8, 9 carried by an output pulley member 5 are biased by springs 17, 18 into engagement with an input, motor-driven, drum 3 and are released therefrom by shoe centrifugal force to maintain the higher of said two output speeds, and auxiliary masses 19, 20 also carried by the output member 5 and inwardly biased by weak springs (25), (26) are selectively permitted to move radially outward at a relatively low output speed to contact the shoes 8, 9 to increase the effective mass of the shoes and therefore maintain the lower of said two output speeds. In such a clutch, the control for selectively permitting the auxiliary masses 19, 20 to contact the shoes comprises trigger members 30 which are rotatable with, and radially slidable with respect to, the output member 5, are effective when radially disposed to prevent radially outward shoe contacting movement of the auxiliary masses, and are radially outwardly movable centrifugally, against spring bias, so as to be pivotable by a selectively movable external control member 42 to permit said radially outward shoe contacting movement of the auxiliary masses. The trigger members may be mounted directly on the auxiliary masses, may move centrifugally radially outward independently of the auxiliary masses just before outward movement of the latter, or, as shown, be mounted on pins 31 fast with the output member 5 and acted on by the auxiliary masses. As shown, in the radially disposed position of the trigger members, arms 35 thereof prevent shoe contacting movement of the auxiliary masses by engaging protrusions (37) thereof; whereas in the pivoted position of the trigger members the arms 35 move into auxiliary mass recesses (38) to permit said shoe contacting movement. The external control member 42 is selectively movable against a spring 43 into the path of arms 44 of the outwardly positioned trigger members by energization of a solenoid coil 40.
Patent GB-1505443-A (GB)
Title: Method and apparatus for controlling a well during drilling operations
IPC: E21B33/127
Filed: 1976-09-28
Abstract: 1505443 Boring earth &c. OTIS ENG CORP 28 Sept 1976 [24 Nov 1975] 40222/76 Heading E1F A method of controlling a high pressure formation while drilling includes the step of sealing the annulus between the drill string 26 and casing 24 or hole 20, e.g. by inflating a selected packer 30, and reversing the circulation above the inflated packer 30 so that the high pressure from the well is confined within the drill string 26 above the packer 30. The packer 30 is inflated by pumping an actuating tool 32 down the drill string 26 and the packer 30 and tool 32 include by-pass means so that drilling fluid is circulated to the bottom end of the drill string 26, the circulation below the packer 30 being parallel reverse circulation or cross-over circulation. In a first embodiment (Fig. 4) a mandrel connected in the drill string carries an inflatable packer 52. A port 56 and by-pass passages 58 are formed in the wall of the mandrel, the port 56 and passages 58 normally being closed by a sleeve valve 54. When a high pressure formation is encountered an actuating tool 32 is pumped down the drill string. The bore of the tool 32 is closed by a frangible disc (not shown). The tool 32 shifts the sleeve valve 54 downwardly to uncover port 56, thus inflating the packer 52 and completes the by-pass passages 58, 60. A further increase in pressure breaks the frangible disc. The mud circulation can then be reversed as shown in Fig. 4, the circulation below packer 52 being parallel reverse circulation. A check valve 64 prevents the high formation pressure from being transmitted to the annulus above the packer 52. In a second embodiment (Figs. 5A, 5B, 7) the packer and tool assembly provides cross over circulation below the packer. The packer 52 consists of a sleeve 76 which is fixed to mandrel 68 at its lower end 76a and is slidable at its upper end 76b, the packer 52 being inflated through inlet port 88 which is normally closed by sleeve valve 90. The sleeve 76 includes buttons 110 which move outwardly (as shown in Fig. 7) when the packer is inflated to engage the borehole or casing and prevent the packer from shifting. The packer 52 is actuated by pumping a tool 32 down the drill string to shift valve sleeve 90 downwardly (Fig. 7), thus exposing port 88. A further increase in pressure then breaks frangible disc 164 in the tool 32. Reverse cross over circulation can then take place, fluid from the annulus above packer 52 flowing through ports 120, passage 118, ports 116, 128, 138 and bore 148 to the drill string below the packer 52. A check valve 152 prevents back-flow of the high pressure fluids. The fluid flows down the drill string to the bit, up the annulus below the packer 52 and through ports 122, 130, 160 and bore 162 into the drill string above the packer.  The actuating tool 32 may initially be located in a housing (not shown) in section 34 of mud line 36 (Fig. 1) and can be launched into the drill string by pressurising line 38.
Patent GB-1067057-A (GB)
Title: Improvements in or relating to disk brakes
IPC: F16D65/54
Filed: 1965-09-21
Abstract: 1,067,057. Disc brakes. KELSEY-HAYES CO. Sept. 21, 1965 [Nov. 18, 1964], No. 40240/65. Heading F2E. In a disc brake having a floating caliper housing 20 provided with one or more cylinders 28 in each of which operates a piston 29 for applying a pad 32 to a disc 17, whereby another pad 24 is applied to the opposite face of the disc by reaction through the caliper housing, the latter is mounted on two pairs of parallel links 43 formed by lever portions of sleeve members 42 journalled on trunnions 40 projecting on opposite sides of a stationary axle 41, in which a shaft 12 carrying a member 15 supporting the disc at its outer periphery is journalled, and automatic adjusting means is provided for the caliper housing 20 in the form of spring-loaded pawls associated with one pair of links 43 and engaging ratchet formations 46 on the corresponding trunnions 40, so that as the pads wear the caliper is progressively restrained from retrograde movement, i.e. to the left in Fig. 2. Preferably, three circumferentially spaced cylinders and pistons are provided in the housing 20 to apply three separate pairs of pads to the disc. Each directly applied pad 32 has a backing plate 31 provided with projections (52, Figs. 7 and 8, not shown)- by which they are mounted in recesses of a carrier plate 50 which carries a pair of rods 60 slidable in the housing, seals 64 in the housing engaging the rods and being of a cross-section such that they act as automatic friction adjusters for restraining return movement of the pads 32. The indirectly applied pads 24 have backing plates 23 equipped with similar projections 25 engaging recesses in a flange 21 of the housing 20. The disc 17 consists of a pair of plates 17a, 17b spaced apart by webs 18 to provide an integral cooling fan, the plate 17a carrying suitable bosses for the attachment of the disc, by bolts 16, to the member 15.
Patent GB-1242969-A (GB)
Title: A method and apparatus for securing a sliding clasp fastener to an article
IPC: A41H37/06
Filed: 1969-08-14
Abstract: 1,242,969. Sewing or sliding clasp fasteners. WILLIAM PRYM-WERKE K.G. 14 Aug., 1969 [10 Sept., 1968], No. 40705/69. Heading D1G. A sliding clasp fastener 16 is secured, together with the article 39 to which it is to be sewn, to a table 17 which is moved during sewing by drive means 22, 23, 25. As shown, a fluid pressure actuated top clamp member 35, 29 27, 33 is provided on the table to hold the work, the member being slotted at 36. In a modification (Fig. 3, not shown) the table 17 is provided with pins (44) on which the work 39, 16 is impaled, the sewing- machine presser foot (42) providing the holding down action. In this case the underside of the presser foot is provided with grooves (45) to clear the pin points. Alternatively the work may be secured to the table by clamps at the table end. It is stated that a control means adjustable to the length of the fastener may control the table movement. The table may be removed from the machine with the work.
Patent GB-1411326-A (GB)
Title: Process for producing flocculating agents from red mud
IPC: C02F1/52
Filed: 1973-08-30
Abstract: 1411326 Flocculating agent GIULINI GmbH Gebr 30 Aug 1973 [31 Aug 1972] 40912/73 Heading C1A A flocculating agent (a mixture containing water-soluble Al, Fe and Ti sulphates) is prepared by treating red mud with sulphuric acid (strength above 60%) in a heated rotating drum with internal heat exchange means, simultaneously drying and comminuting. The pH of the reaction mixture may be 1À5 to 2À5. The heat exchange means may be a chain or chains suspended inside the drum which may be horizontally mounted. The drum may be heated by an internal burner. The red mud and acid may be mixed in a mixing tube which may project into the drum. The process may be continuous. The particle size may be controlled by altering the drum speed and the heating.
Patent GB-1081769-A (GB)
Title: Improvements in hydraulic turbo couplings
Inventor: BILTON JOHN
IPC: F16D33/14
Filed: 1963-10-16
Abstract: 1,081,769. Hydrodynamic coupling. FLUIDRIVE ENGINEERING CO. Ltd. Oct. 6, 1964 [Oct. 16, 1963], No. 40921/63. Heading F2C. A hydrodynamic coupling comprises a stationary casing 9 which encloses an impeller 1 fast with a driving shaft 6, a turbine 2 fast with a driven shaft 11, a scoop chamber 4 rotating with the impeller 1 and oppositely directed scoop tubes 27, 28 which are interconnected for simultaneous adjustment and discharge through a de-aeration chamber 29 into a sump 33 in the casing 9. The scoop tubes 27, 28 discharge into the de-aeration chamber 29 tangentially to form a rotating film on the wall thereof and thus permit the entrained air to escape through a tube 33a. Liquid is drawn from the sump 33 by an input driven pump 35 and returned to the working circuit through a cooler, and ducts 21, 20, 22, 23. A lubrication scoop tube 26 carried by the output shaft 11 delivers liquid from the duct 22 to a bearing 25 between the input and output shafts at a rate dependent on the slip in the coupling.
Patent GB-1286566-A (GB)
Title: Improved reformer furnace
Inventor: WORLEY ARTHUR CHRISTIAN
IPC: C01B3/34
Filed: 1970-08-26
Abstract: 1286566 Catalytic furnace ESSO RESEARCH & ENG CO 26 Aug 1970 [24 Sept 1969] 41052/70 Heading B1F [Also in Division CSE] A furnace for the reforming of hydrocarbons comprises a plurality of vertically oriented tubes 12 within a furnace box, but projecting from it at both ends, with their lower ends connected to outlet headers 22 by inflexible vertical pipes 20 of diameter smaller than the tubes and extending through a refractory insulating lining 24 inside the outlet header, and their upper ends connected to the inlet header by flexible piping (Figs. 3 and 4, not shown). As shown, the header is of mild steel and the lining of alumina, and the lower part of the tube 12 and the pipe 20 are protected by thermal insulation 28, e.g. of fibreglass. The inlet header may also be of mild steel and have a refractory lining.
Patent GB-1520467-A (GB)
Title: Process for the skid resistance of elastomers
IPC: C08L9/00
Filed: 1975-10-07
Abstract: 1520467 Cyclized elastomers ANIC SpA 7 Oct 1975 [9 Oct 1974] 41113/75 Heading C3P Diene elastomers-are modified to improve skid resistance by cyclization by contact at 100-160 C. in the presence of an aromatic hydrocarbon solvent with a catalyst system comprising (a) a compound AlRnX3-n in which X is halogen, R is hydrogen or a C1-12 substituted or unsubstituted alkyl, cycloalkyl or aryl radical, and n is zero or an integer or fraction up to 3, and (b) a compound in which X<1> is halogen, R<1> is a C1-20 vinyl, alkyl vinyl or substituted or unsubstituted alkyl, cycloalkyl or aryl radical, and R<2> and R<3> are each hydrogen or a radical as defined for R<1>. the molar ratio of (a) to (b) being from 0À2 : 1 to 3 : 1. In Examples, cis-1,4-polybutadiene is modified, the solvent being xylene or toluene, (a) being AlEt3, AlEt2Cl or AlEtCl2, and (b) being allyl chloride or benzyl chloride.
Patent GB-1079665-A (GB)
Title: An improved picture frame
IPC: A47G1/06
Filed: 1964-10-09
Abstract: 1,079,665. Picture frames. MILHURST PARK Ltd. Oct. 9, 1964 [Oct. 17, 1963], No. 41248/64. Heading A4X. A picture frame consists of four rails (5-8) the ends 10 of which are mitred and have a slot 15 to receive one half of a wedge 11.
Patent GB-1060990-A (GB)
Title: Handle for bags
IPC: A45C13/26
Filed: 1964-10-09
Abstract: 1,060,990. Carrier bag handles. A. WINDMOLLER and M. GENNERICH [trading as WINDMOLLER & HOLSCHER]. Oct. 9, 1964 [Oct. 12, 1963], No. 41309/64. Heading A4G. A handle of thermoplastics material for a carrier bag preferably of plastics sheeting consists of two separate handle portions which engage each other for closing the bag, e.g. by snap or press-studs 8-11, each portion comprising a grip portion 4 and a bar 5 for connecting the handle portion to the bag wall, at least the grip portions being of facing channel sections. Pressstuds may be formed in the grip portion or the channel sections may engage. The top of the bar may be channelled and the bottom roughened for welding to the bag wall.
Patent GB-1456720-A (GB)
Title: Selective cyclodimerization of 1,3-butadiene contained in a commercial c-4 hydrocarbon stream
IPC: C07B61/00
Filed: 1974-09-24
Abstract: 1456720 Cyclodimerizing butadiene GOODYEAR TIRE & RUBBER CO 24 Sept 1974 [1 Nov 1973] 41499/74 Heading C5E 1,3-Butadiene containing in a commercial C 4  hydrocarbon stream is selectively cyclodimerized to form 1,5-cyclooctadiene by contacting the C 4  stream with a catalyst comprising (1) at least one iron salt or complex (2) at least one organometallic compound or metallic halide of groups Ia, IIa, IIb or IIIa and (3) at least one ligand of the formulµ or wherein R is H, C 1 -C 6  alkyl or aryl, R<SP>1</SP> and R<SP>11</SP> are C 4 -C 10  hydrocarbon radicals containing double bond unsaturation (including benzene ring) in conjugation with the C = N unsaturation and Py is a divalent radical derived from pyridine, and then flash distilling the mixture to separate the C 4  hydrocarbons from the 1,5- octadiene. Preferred catalyst components are (1) ferric octanate (2) Et 3 Al (3) glyoxal bis- (2,6 - dimethylanil) and glyoxal bis - (2,4,6- trimethylanil).
Patent GB-1263516-A (GB)
Title: Improvements in or relating to a vehicle bogie
Inventor: SHEPPARD FRANCIS ERNEST
IPC: B61F15/16
Filed: 1969-08-21
Abstract: 1,263,516. Vehicle bogies. ROLLS ROYCE Ltd. 21 Aug., 1969, No. 41764/69. Headings B7D and B7L. [Also in Division F2] In a vehicle bogie comprising a pair of axles 16 having bearings 15 surrounded by elastomeric bushes 40 carried by side members 13 of a bogie frame, the total thickness of each bush 40 in the vertical direction is less than that in the horizontal direction so as to provide spring- ing that is softer vertically than horizontally. The bush is annular and has two parts 14a, 14b each having an arcuate aperture 46 therein. Alternatively the bush could have a -circular inner periphery and an oval outer periphery. The bogie is substantially the same as that disclosed in Specification 1,192,723. Reference has been directed by the Comptroller to Specification 1,192,723.
Patent GB-981923-A (GB)
Title: Improvements in or relating to magnetic-core memories
IPC: G11C5/05
Filed: 1962-11-05
Abstract: 981,923. Magnetic storage matrices. AMPEX CORPORATION. Nov. 5, 1962 [Nov. 6, 1961], No. 41798/62. Heading H3B. A three dimensional storage matrix is formed by orienting the cores for one plane in a rack by known methods such as by suction and then transferring them to an adhesive plastic tape. Several rectangular arrays are arranged along the tape with one of the diagonals of each rectangle in line as shown in Fig. 2. Plastic frames 22, 24, 26 and 28 are then placed over the cores and now windings such as 68 are then passed through a row in one array, through apertures 64, up through slot 52 and across to the next array. The column windings such as 66 are similarly arranged and between two arrays the row and column windings are parallel to each other. Separate sense and inhibit windings are provided for each plane and connected to terminals such as 56, 58, 60, 62. After assembly the tape is removed and the assembly is folded concertina-wise to form a compact stack with continuous row and column conductors which are terminated on a terminal board at the edge of the top plane. Alternatively, the frames 22, 24, 26 and 28 may be omitted and after wiring and folding the unit may be immersed in plastic which is then hardened.
Patent GB-1441663-A (GB)
Title: Medical infusion apparatus
IPC: A61M39/26
Filed: 1973-09-06
Abstract: 1441663 Infusion apparatus H WEISSINGER 6 Sept 1973 [15 Sept 1972] 42029/73 Heading A5R An infusion apparatus comprises a flask 1 releasably fastened on a casing 2, 3 housing an electrical control system, a tube 5 secured to the flask 1 and connected to a drip chamber 9, and a drip valve 4 or an infusion pump releasably secured to the bottom of the casing 2, 3. The drip chamber 9 lies between a drop sensor including a transmitter 26 and a receiver 27. The drip valve 4 is controlled by an electromagnet 12 and is releasably secured to the casing'2, 3 by screws 33, 34 and may be replaced by the infusion pump. The tube 5 is clamped between jaws (7, 8), Fig. 3 (not shown), one of which (8), is operated by a lever (35) which has a large mechanical advantage and is controlled by the magnet 12. The end of the tube 5 includes a spring-loaded ball valve (37, 38), Fig. 7, (not shown) operable by an extension (40) of an injection needle (41). A radiant heater 42 is provided to heat the tube 5, the flask 1 and a mounting flange 15.
Patent GB-1304782-A (GB)
IPC: F27B7/14
Filed: 1970-09-02
Abstract: 1304782 Rotary retort furnaces ALLIED CHEMICAL CORP 2 Sept 1970 [19 Dec 1969] 42057/70 Heading F4B A slightly inclined rotary retort furnace is provided with internal means for recycling part of the material therein back towards the upstream end of the furnace. Reactant materials from screw feeder 42 and pipe 44 are introduced into the inner retort tube, which is surrounded by a jacket 20 through which controlled quantities of partially recirculated combustion products from an associated combustion chamber flow (Fig. 1, not shown). An annular dam 12 midway down the furnace, causes a build up of solid product material part of which is recirculated, the remainder passing on for discharge past a gastight star valve at the other end of the furnace (Fig. 1, not shown). The recycling means comprises either one or more openended return feed tubes 100 -helically wound around the retort tube inner wall, and/or screw recycling means 60 comprising a return tube having a pair of return flight elements mounted within it, which is mounted within the retort tube to rotate therewith, and is fed by opposed scoops 70 (and see Fig. 3, not shown) which also rotate with the retort tube. When used to produce HF drawn off through flue 52, pipe 44 supplies sulphuric acid and feeder 42 fluorspar, the recycling means recycling predetermined quantities of by product calcium sulphate from upstream of the annular dam 12.