baber/WOPTO huggingface dataset:
Patent GB-740476-A (GB)
Title: Improvements in or relating to electrical selector switches
IPC: H01H1/54
Filed: 1953-03-20
Abstract: 740,476. Automatic exchange switches. WILMAN, C. W. Feb. 15, 1954 [March 20, 1953], No. 7703/53. Class 40 (4). [Also in Group XXXVII] An automatic telephone selector comprises a pair of magnetic wipers 1 supported on an insulating body 2 having embedded therein a permanent magnet 3, the poles of the magnet being at its upper and lower ends (Fig. 2), whereby the contact pressure of the wipers is obtained by magnetic attraction. Lugs 5 of the wipers 1 are received between upstanding parts 4 of the body 2 and rest on slightly raised parts between the parts 4 whereby the wipers may pivot to align themselves with fixed contacts 7 also of magnetic material. Good contact between the contacts 6, 7 is ensured by the magnetic flux traversing the contacts and causing attraction therebetween. As shown, the contacts 7 are arranged in pairs and separated by insulation 8. The contacts may be of nickel, or of iron or steel plated with nickel or cobalt. Further, the nickel plating may be preceded by a thin plating of copper. Alternatively, there may be a thin non-magnetic plating of a precious metal on the iron or steel. The wipers 1 are mechanically balanced about the lugs 5 by tails 9 and are electrically connected to pins 12 on the body 2 by foils 11 riveted to the wipers at 10. A saddle 16 and screws 17 secure the body 2 to the operating shaft 15.
Patent GB-270459-A (GB)
Title: Means for converting rotary into reciprocating motion
IPC: F16H25/12
Filed: 1926-03-20
Abstract: 270,459. Jones, T. H. March 20, 1926. Screw-and-nut mechanism. - Screw or worm. gearing converts rotary into reciprocating motion, or into combined reciprocating and rotary motion, the latter arrangement being applicable for driving the pattern drum of a knitting-machine. There are parallel threaded cylinders 1, Fig. 1, geared together and driven, and between them extends a rod 3 to which reciprocating motion is to be imparted. Through a cross-head 4 on the rod 3 extends a double nut member 6, which is slid to and fro automaticallyso as to engage the worm threads alternately. At the end of each linear travel of the member 6, it rides up on an incline 1a turning with the worm, and is so thrust over to engage the other worm for the return reciprocation. The worm threads may be cut with varying pitches to vary the linear speed of the rod. Means for holding the nut or member 4 in engagement with each worm is shown in Fig. 2. When the nut 6 is thrust to one side, one spring plunger 8 is raised out of engagement with an incline 9 and rendered inoperative, while another plunger rides down on another incline and produces the retaining force. As shown in Figs. 1 and 3, the rod 3 may be adapted to reciprocate upon a feathered rotary shaft 11 the pattern drum 5 of a knitting-machine, to which a combined motion is thus imparted.
Patent GB-1049333-A (GB)
Title: Production of self extinguishing plastics materials
Inventor: HERRLE KARL
IPC: C08F4/32
Filed: 1964-02-25
Abstract: A self-extinguishing material containing at least 2% of chemically combined chlorine and 0.05-5% of a complex compound of formula MxeAry(CO)z, where Me is a transition metal of Group VIB, VIIB or VIII of the Periodic System, Ar is an aromatic system, x is 1-3, y is 0-3, z is 0-12 and y + z is 2-9, is produced by polymerizing (a) a mixture of an olefinically unsaturated monomer containing chlorine and an olefinically unsaturated monomer free from chlorine, or (b) a mixture of an olefinically unsaturated monomer free from chlorine with an organic compound which does not copolymerize with the monomer which contains chlorine and which contains at least 4 carbon atoms, the polymerization being carried out in the presence of the complex compound, and of a dialkyl and/or ketone peroxide, an alkyl hydroperoxide and/or an ester of an acyl peroxide as a polymerization initiator.  2-20% of a gaseous or liquid expanding agent may be added to the material.  The polymer may be a copolymer of methyl methacrylate and vinylidene chloride, of vinyl chloride and vinyl isobutyl ether, or a homo-polymer of methyl methacrylate or styrene. The complex compound may be dicyclopentadienyl iron (ferrocene) Polymerization may be carried out in bulk using as initiator tert-butyl perethyl hexamic acid ester, tetraglycidyl ether of pentaerythritol, tert-butyl hydroperoxide, ditert-butyl peroxide, methyl ethyl ketone peroxide, cumene, hydroperoxide or in emulsion with water using sodium pyrophosphate and polyvinyl pyrrolidone.  The material may be in the form of beads.  The chlorine compound may be a chloroparaffin or a chlorinated polyethylene. The expanding agent may be pentane.
Patent GB-492282-A (GB)
Title: Improvements in or relating to sealing connections between centrifugal drums and stationary pipe lines
IPC: B04B11/02
Filed: 1937-03-16
Abstract: 492,282. Centrifugal machines. RAMESOHL & SCHMIDT AKT.-GES. March 16, 1937, No. 7742. Convention date, March 18, 1936. [Class 23] [Also in Group XXVI] In order to prevent transmission of oscillations of a centrifugal drum 1 to stationary conduits 12, 17, a casing 6 carrying independent packings 4, 5 for the drum channels 2, 3, is supported between elastic members 7, 8 provided with axial supports 9, 10; the member 8 forming also a sealing connection between the casing 6 and conduit 12. Adjustment of the packing is effected by a screw 13 acting through a spring 15 and the conduit 12. Cooling and lubricating liquid is supplied at 24 to passage 26 and is discharged at 25. Alternatively the liquid may be supplied through the hollow supports 9, 10, or the substance treated may be passed from chamber 16 around the packing.
Patent GB-714196-A (GB)
Title: Improved fluid mixing process and apparatus therefor
IPC: F23K3/00
Filed: 1952-03-27
Abstract: 714,196. Mixing appliances. AUSTRALIAN IRON & STEEL, Ltd. March 27, 1952 [Jan. 4, 1952], No. 7858/52. Class 86 [Also in Groups XI and XIII] In mixing together two or more fluids or different parts of the same fluid, rotating fluid streams arranged' around a central stream of the same or a different fluid are brought into confluence so that at least a majority rotates each in a direction opposite to the direction of rotation of each adjacent stream, other than the central stream. In a heat-exchange tube 5, Fig. 2, the wall of which transmits heat, a ring of whirlers 6 each comprising fixed helical blades 7 imparts rotation to the fluid passing through them. The blades of adjacent whirlers are set so as to produce opposite directions of rotation. A central whirler 10 of similar construction is provided to impart a general rotary movement to all the rotating streams of fluid. In a gas burner, Fig. 3, air flows from an inlet 12 through a ring of pipes 13 each provided at its outlet with radial helical vanes 14 which cause the issuing air stream to rotate in a direction opposite to the direction of rotation of the air streams issuing from adjacent pipes 13. Fuel gas from the inlet 11 flows between the pipes 13 and mixes with the air in the combustion chamber 18. An additional or alternative fuel may be supplied through a pipe 21 which may have a whirler at its outlet. In a modification, an additional fuel pipe is provided coaxially in each air pipe. These additional pipes are connected at their outer ends to an annular header to which pulverized solid fuel or fuel oil is fed tangentially. The outer ends of these pipes may be provided with spreaders or the pipes may be internally rifled.
Patent GB-342576-A (GB)
Title: Improvements in suspenders for hose
IPC: A41F11/00
Filed: 1930-03-12
Abstract: 342,576. Hook fastenings. HURST, E. F., Swan Buildings, Swan Street, Manchester. March 12,1930, No. 7987. [Class 44.] Hook fastenings for the straps of hose &c. suspenders have the hook a on one member A of ordinary form, and adapted to engage an L-shaped slot in a cross-bar b3 on the co-operating member B. Member B has a bar b to which one end of the strap, not shown, is secured, and a serrated bar b<5> round which the strap is passed. The central bar b<3> is pressed up out of the plane of the bars b. b5.
Patent GB-444716-A (GB)
Title: Electric pocket-lamps
IPC: F21L4/00
Filed: 1935-03-14
Abstract: 444,716. Batteries. METALLWERKE A. HOPF AKT.-GES., Tambach, Dietharz, Th³ringia, Germany. March 14, 1935, No. 7990. Convention date, March 14, 1934. [Class 53] [See also Group XI] In an electric pocket lamp the cells c of the battery are enclosed in a housing a of moulded insulating material, such as a synthetic resin, formed with integral partition walls t between the cells, an airtight enclosure being formed by an insulating layer d of material such as asphalt through which the battery contact strips n and q project. A metal cover plate held in position by resilient tongues engaging the edges of recesses in the casing carries a guard formed with a socket k for a bulb.
Patent GB-276901-A (GB)
Title: Improvements in applying "drag" to the spinning bobbins in flyer spinning and like frames
IPC: D01H7/44
Filed: 1927-03-24
Abstract: 276,901. Boyd, H. A., and Boyd, Ltd., J. & T. March 24, 1927. Spindle apparatus.- In flyer spinning and like frames the bobbin is dragged by a traveller 4 which is mounted on a ring 3 and is coupled by slots 5<3> or projecting wire loops with a collar 5 connected to the bobbin by pins. More than one traveller may be used.
Patent GB-385276-A (GB)
Title: Method of regulating the power transmitted by a photo-electric cell to a lamp amplifier
IPC: H03F3/36
Filed: 1931-03-17
Abstract: 385,276. Valve amplifying circuits. SOC. ANON. ELECSON, 32, Rue Jules- Guesde Ó Puteaux, Seine, France. March 17, 1931, No. 8117. Convention date, Feb. 9, 1931. Void [Published under Sect. 91 of the Acts]. [Class 40 (v).] The voltage applied to the grid of an amplifier valve 7 from a photo-electric cell 1 is regulated by a slider 11 or. a resistance 10. The cell is polarized by a battery 2 through a resistance 4, and the resistance 10 is connected in series with a con. denser' 9 across the resistance 4. The valve may be of the screen-grid type. The slider may make contact with the resistance 4, and the condenser 9 and resistance 10 are then omitted, Fig. 4 (not shown). The battery 2 may be used to supply plate voltage to the valve 7. In another arrangement, Fig. 3, the resistance 10 has a free end, the grid and the slider 11 being connected to one side of the condenser 9.
Patent GB-1405531-A (GB)
Title: Variable light-beam attenuators
IPC: F21V9/40
Filed: 1973-02-20
Abstract: 1405531 Optical apparatus SIEMENS AG 20 Feb 1973 [21 Feb 1972] 8206/73 Heading G2J A variable light-beam attenuator for use with a linearly polarized laser beam e.g. to form a stage or studio lighting source comprises a multi-layer polarization beam splitter mounted to rotate about an axis along which an incident laser beam can be directed, the layers being disposed at the Brewster angle relative to this axis. As shown, a pair of prisms 4, 6, each of which has a base angle of 45 degrees, have their base surfaces coated with alternate layers of zinc sulphide 12 and magnesium fluoride 13 and the two outermost layers are joined by a cement film 14. The entry and exit faces 3, 15 of the resultant beam splitter have reflection-reducing coatings while the third face of prism 4 is provided with an absorptive film 9. The beam splitter is mounted within support rings 10 and 11 for rotation about axis AA'. In use, a linearly polarized laser beam 1 is incident from direction A on the entry face 3 of prism 4 producing a refracted beam in direction A' e.g. for illuminating a stage or studio and reflected beams in direction A" which are absorbed at 9. As the beam splitter is rotated relative to a polariser (not shown) the intensity of the refracted beam varies between a maximum and a minimum.
Patent GB-685615-A (GB)
Title: Improvements in or relating to means for controlling the fuel level in liquid fuel burning appliances
Inventor: SHERLOCK JOHN EDWARD
IPC: G05D9/02
Filed: 1949-03-25
Abstract: 685,615. Liquid-fuel burners. BRITISH THERMOSTAT CO., Ltd. Feb. 24, 1950 [March 25, 1949], No. 8228/49. Class 75(i) A liquid fuel burning appliance has a constant level fuel feed device including a cylindrical reservoir 1, Fig. 3, which when placed on its support, comprising a member 13 and a casing 15 having curved upper edges, is rotatable into a position where a valve 7, Fig. 5, mounted in the reservoir filler cap 3 is opened by engagement of the stem 4 thereof with a surface 20 in the casing 15, thus allowing fuel to flow into the casing 15 and thence to the burner 17 through a swivelled tubular arm 16, the fuel level being maintained constant in the casing 15, but being adjustable within limits by varying the level of the valve 7 by slight rotational adjustment of the reservoir 1. A guide plate 34 projecting from the reservoir 1 engages the upper surface of the casing 15 when the valve stem 4 is vertical. The casing 15 contains a filter 21 through which the fuel passes via an adjustable flow restrictor 24 in a passage 22 to a trough 23 supplying the burner tube 16. The mounting of the appliance provides for easy inspection, adjutsment, and cleaning of the appliance e.g. when it is incorporated in a refrigerator. The reservoir 1 may be withdrawn after turning so that guide plates 18, 19 thereon, which normally engage the ends of the casing 15, clear the latter, and the support 13 may then be rotated about a pivot 29 into a horizontal position, the movement being transmitted by a rod 30, Fig. 7, to a trip lever 31 which depresses an L-shaped arm 36 to free the casing 15 from the frame 10 on which it is mounted, so that it can, together with the burner 16, be swung through a rightangle about a pivot 28. Specifications 518,610, [GroupXXIX], 656,707 and 685,606 are referred to.
Patent GB-557192-A (GB)
Title: Improvements in apparatus for use in determining the weight-distribution in golf clubs
IPC: G01G1/26
Filed: 1942-07-16
Abstract: 557,192. Testing balance of golf clubs. FRASER, R. July 16, 1942, No. 8257. [Class 97 (iii)] Apparatus for ascertaining or comparing the balance of golf clubs comprises a club holder 14 pivoted on a horizontal axis 17 so that the handle of the club projects a hand-grip length from the axis, and a weighbeam 24 beneath the club holder mounted on a pivot 28 and connected to the club holder by a tension link 32. the apparatus is designed to measure a range of moments between limits not exceeding the ratio three to seven. The pivots 28 may be adjusted in height. Stops adjacent the pivots 17 limit the downward displacement of the free end of the club holder when the club is removed. The club is retained centrally in the holder by a V-shaped support adjacent the pivots 17 and a V-shaped saddle 16 remote from the pivots.
Patent GB-1529633-A (GB)
Title: Process for producing n-acyl-l-methionines
IPC: C12P41/00
Filed: 1976-03-02
Abstract: 1529633 Optical resolution of N-acyl-methiones PROCTER & GAMBLE CO 2 March 1976 [3 March 1975] 08293/76 Heading C2C Optically pure N-acyl-L-methionines are prepared by (1) subjecting an N-acyl-DL-methionine ester to a microbially derived serine proteinases and (2) separating the resulting N-acyl- L-methionine from the unreacted N-acyl-D- methionine ester. The latter may be racemized by heating it in the presence of water or methanol containing NaOH and thereafter recycled to the process. Specified proteinases are those derived from Bacillus subtilis (e.g. Carlsberg strain, BPN or BPN<SP>1</SP> strain, or an X-ray mutated strain), Aspergillus oryzae, Streptomyces griseus (ATCC 3463) and Aspergillus sychouri; also Aspergillus alkaline proteinase (E.C.3.4. 21.15), Arthrobacter serine proteinase (E.C. 3.4. 21.17) and Alternaria endopeptidase (E.C. 3.4. 21.16).
Patent GB-810585-A (GB)
Title: Improvements in or relating to boilers
IPC: B65G3/02
Filed: 1955-10-31
Abstract: 810,585. Feed to furnaces. DANIAULT, M. M. E. Oct. 31, 1955 [April 9, 1955], No. 8295/57. Divided out of 810,584, [Group XIII]. Class 78 (1). Fuel from hopper 2 to furnace 1 of a boiler is controlled by a sliding gate 26 which is operated by control wheel 35 through parallel linkage 27, 28, 29, and threaded parts 34<SP>1</SP>, 34<SP>2</SP> of the rod 34.
Patent GB-1090287-A (GB)
Title: Production of dialkyl ketones
Inventor: HAHL EDGAR
IPC: C07C45/48
Filed: 1965-02-26
Abstract: Dialkyl ketones are prepared by heating saturated aliphatic carboxylic acids, in the gas phase at temperatures of 250 DEG  to 500 DEG  C. in the presence of a solid catalyst comprising a mixture of manganese dioxide and titanium dioxide. The carboxylic acids used preferably contain 2 to 18 carbon atoms, and are in particular, acetic acid, propionic acid, butyric acid, isobutyric acid and caproic acid.  The catalyst mixture which can be used stationary or fluidized has a preferred particle size of from 100 microns to 600 microns.  The ratio by weight of manganese dioxide to titanium dioxide is suitably from 1.0:1.5 to 1.0:5.0.  The catalyst can take the form of pellets prepared from a paste of a mixture of the dioxides, dried and then heated for several hours at 400 DEG  to 500 DEG  C. in air or in the absence of oxygen, or it can be coemployed with either inert carrier substances such as diatomaceous earth or substances which themselves have catalytic activity for the reaction, such as the oxides of zinc, cadmium, thorium, uranium, aluminium, zirconium, magnesium, cerium, chromium, iron or divalent manganese. The metal oxides may also be replaced wholly or partly by other compounds of the metals which are converted to the dioxides on heating, such as the nitrates, hydroxides, carbonates or oxalates.  A particularly suitable method is that in which catalysts to be used in a fluidized bed are prepared by impregnating titanium dioxide with an aqueous solution of manganese nitrate and further processing as described above.  The catalyst may be regenerated, for example, by calcination in the air and subsequent treatment with concentrated nitric acid.ALSO:A catalyst used in the preparation of dialkyl ketones (see Div. C2) comprises a mixture of manganese dioxide and titanium dioxide.  The catalyst mixture, which can be used stationary or fluidised, has a preferred particle size of from 100 microns to 600 microns.  The ratio by weight of manganese dioxide to titanium dioxide is suitably from 1.0:1.5 to 1.0:5.0.  The catalyst can take the form of pellets made from a paste of a mixture of the dioxides, dried and then heated for several hours at 400 DEG C to 500 DEG C in air or in the absence of oxygen, or it can be coemployed with either inert carrier substances such as diatomaceous earth or substances which themselves have catalytic activity for the reaction, such as the oxides of aluminium, zinc, cadmium, thorium, uranium, zirconium, magnesium, cerium, chromium, iron or divalent manganese.  The metal oxides may also be replaced wholly or partly by other compounds of the metals which are converted to the dioxides on heating, such as the nitrates, hydroxides, carbonates or oxalates.  A particularly suitable method is that in which catalysts to be used in a fluidised bed are prepared by impregnating titanium dioxide with an aqueous solution of manganese nitrate and further processing as above.  The catalyst may be regenerated, for example, by calcination in the air and subsequent treatment with concentrated nitric acid.
Patent GB-1038771-A (GB)
Title: Tedding rake
IPC: A01D80/00
Filed: 1963-03-01
Abstract: 1,038,771. Haymaking machines. ETABLISSEMENTS FR. VANDENABEELE SOC. ANON. March 1, 1963 [March 5, 1962; Jan. 8, 1963], No. 8353/63. Heading A1F. An endless-chain haymaking machine comprises two endless chains 4 running around two pairs of discs 5, 5<SP>1</SP>, the chains being interconnected by tine-carrying bars 12, there being a cam 22 which is located at the end of the lower horizontal run of the chains 4 for the purpose of contacting the tine-bars and causing an acceleration of the tips of the tines 13, means being provided for returning the tines to their original positions after they have passed the cam. As shown, the tine-bars 12 are carried by sleeves 11 rotatable on spindles interconnecting the chains 4, the sleeves having integral arms 15 projecting upwardly, the upper end of each arm 15 being connected by a spring-loaded telescopic link 14 to the sleeves of the adjacent tinebar. The upper end of each arm contacts the cam in turn and this causes the tip 13<SP>1</SP> to be kicked through an angle α, the angle being adjustable by moving the cam 22, through a hand-lever 25. In a modification (Figs. 3-5, not shown) cams are mounted on an eccentric parallel to, but not co-axial with,the discs 5, the eccentricity being adjustable. In this arrangement, the kicking action is less pronounced, and is more accurately adjustable.
Patent GB-1162343-A (GB)
Title: Forging
Inventor: ROSS KEITH
IPC: B21J9/12
Filed: 1966-02-25
Abstract: 1,162,343. Forging. DAVY & UNITED ENG. CO. Ltd. 10 Feb., 1967 [25 Feb., 1966], No. 8412/66. Heading B3H. A forging apparatus comprises a press housing a fixed crosshead 12 carrying a tool 13 and a moving crosshead 15 carrying a tool 14 and actuated by a first piston/cylinder assembly 21, and a manipulator 26 having a peel 28 movable parallel to the direction of movement of the crosshead 15 by a second piston/cylinder assembly 31 whose effective area is substantially twice that of the first assembly. This enables the workpiece 37 to move towards the fixed tool 13 at half the speed of the moving tool 14. The upper press crosshead 15 is connected by rods 16 to a lower crosshead 17 actuated by the first assembly 21 which includes a pair of pistons 23 working in stationary cylinders 24. Further pistons 18 are provided working in stationary cylinders 20. The manipulator peel 28 is raised and lowered by parallel linkage 30 operated by the second piston/cylinder assembly 31. The effective area under the piston head is twice that of the working press cylinders 24. The press and manipulator are controlled by a solenoid-actuated valve 41 and the circuit includes a relief valve 47, press release valve 44 and a non-return valve 49 connected to a low-pressure source to prevent cavitation in the press cylinders. In an alternative arrangement the manipulator may have two piston/cylinder units. Reference has been directed by the Comptroller to Specification 1,037,114.
Patent GB-116536-A (GB)
Title: An Internal Combustion Rotary Engine.
Inventor: BERTELLI DOMENICO CESARE AUGUS
IPC: F02B53/00
Filed: 1917-06-13
Abstract: 116,536. Bertelli, D. C. A. June 13, 1917. Fixed-abutment typc; cooling parts; working- fluid supply.-In a rotary internal-combustion engine having outwardly-sliding vanes 25, bearing on a pair of stationary guide-cams 26, the gas mixture is drawn in through ports 21, compressed between the vanes, and ignited by sparking-plugs 27, exhaust taking place through ports 22. A water-jacket 28 is provided. Reference has been directed by the Comptroller to Spacifications 9877/03,8760/08, and 107,892.
Patent GB-729139-A (GB)
Title: Improvements in or relating to the securing of handles to coffins
IPC: A61G17/04
Filed: 1952-04-03
Abstract: 729,139. Coffin handles. HEY, G. H. May 26, 1953 [April 3, 1952], No. 8484/52. Class 52 (1). A wooden or plastic bar 1 is secured to a coffin wall 7 by a dowel screw 11 passing through clearance holes in the wall and spacer members 5, 6 and being threaded as a wood screw for connection to the bar while the inner end is metal threaded to receive a nut 14. The loop for a drop handle may be similarly secured.