baber/WOPTO huggingface dataset:
Patent GB-508070-A (GB)
Title: An improved manufacture of lubricating oils by polymerisation of olefines
IPC: C10G50/02
Filed: 1937-12-22
Abstract: 508,070. Polymerization of olefines. STANDARD OIL DEVELOPMENT CO. Dec. 22,1937, No. 35502. Convention date; Jan. 19. [Class 2 (iii)] Lubricating oils are produced by polymerizing an iso-olefine while dissolved in at least 10 per cent by volume (calculated on the iso-olefine when in liquid phase) of a polymer thereof containing not more than 5, molecules of the iso-olefine, ' and in the presence of a Friedel- Crafts catalyst, e.g. boron fluoride, at - 50 to 100‹ C., preferably- 10‹ C. to room temperature. Isobutene or mixtures containing it, such as a C4 cut, may be polymerized in di- or triisobutene. Other iso-olefines specified are isoamylene and hexylene. With a volume ratio of dimer to isobutene of substantially more than 1, lighter oils similar to mineral white oils are obtained. Generally the volume of dimer does not exceed 500 per cent of the isobutene calculated as liquid. In examples, equal volumes of liquefied isobutene and di-isobutone are treated with boron fluoride at about 0‹ C. and at - 40 rising to 50‹ C., and with aluminium chloride at 0‹ C. Specification 474,831 is referred to.
Patent GB-888911-A (GB)
Title: Hair cutting cape
IPC: A45D44/08
Filed: 1959-10-20
Abstract: 888,911. Hair-cutting capes. DARNUTZER, D. J., MARSH, L. R. & KOFOED, I. E. Oct. 20, 1959 [Oct. 23, 1958], No. 35559/59. Class 141 [Also in Group XIV] A hair cutting cape having a front opening comprises a flexible annular body portion of circular, elliptical or polygonal shape provided at its outer edge with a relatively rigid upturned rim 15. The body portion comprises a synthetic resin film consisting of polyesters, polyethylene- or polyvinyl chloride, or a woven material containing cotton fibres or polyester, polyacrylic, cellulose acetate or polyvinyl chloride fibres. The rim 15 may consist of a strip of a synthetic resin or a woven fabric impregnated with a synthetic resin, secured to the body portion by heatsealing, stitching or adhesive means. In a modification, Fig. 6, a removable stay 25 of polyethylene or cellulose acetate is inserted in a hem formed at the edge of the body portion. The overlapping edges 12 of the front opening are adjustably connected by snap fasteners, hooks, buttons or clips and may be formed with lapels.
Patent GB-841839-A (GB)
Title: Epsilon-caprolactones and process for preparing the same
Filed: 1956-11-22
Abstract: The invention comprises alkyl substituted epsilon-caprolactones having the general formula:  <FORM:0841839/IV(b)/1> in which each R represents a hydrogen atom or an alkyl group, there being present in the compound at least one but not more than four alkyl groups, the total number of carbon atoms in the alkyl groups not exceeding twelve, other than epsiloncaprolactones substituted solely in the alpha position to the carbonyl carbon atom, together with a process for the preparation of an epsilon caprolactone or a mixture of epsilon-caprolactones having the general formula above but wherein each R represents a hydrogen atom or an alkyl group, there being in the compound not more than four alkyl groups, the total number of carbon atoms in the alkyl p  groups not exceeding twelve, other than epsilon caprolactones substituted solely in the alpha position to the carbonyl carbon atom, which comprises reacting a cyclohexanone or a mixture of cyclohexanones having the general formula: <FORM:0841839/IV(b)/2> wherein R has the meaning above defined, with anhydrous peracetic acid or acetaldehyde monoperacetate at between 0 DEG C. and 100 DEG C. in the presence of an inert organic volatile solvent (i.e. a lower boiling solvent which rapidly evaporates from the reaction mixture after completion of the reaction and has a boiling point not exceeding 100 DEG C.).
Patent GB-794534-A (GB)
Title: Improvements in or relating to metallic vessels having a protective metal lining
IPC: B65D85/84
Filed: 1955-12-13
Abstract: <PICT:0794534/III/1> <PICT:0794534/III/2> Tanks, pressure vessels, chemical reactors, heat-exchangers, pipes, &c., for use with corrosive fluids have, as shown in Fig. 2, a number of sections of a protective lining 11 (which in this case consists of carbon steel base plates 12 with plates 13 of deoxidized copper bonded thereto) arranged on the inner surface of the shell 10 with slots between the edges 14 of adjacent sections and a protective strip 18 (also of deoxidized copper) welded to the lining at 19, one or more holes 20 (Fig. 3) extending through the shell 10 to behind a strip 18 for a tube 21 which is connected to a leak-detecting device, such as is described in U.S.A. Specification 2,631,015, or to means for supplying under pressure a fluid such as a non-corrosive reactant or an inert pressurizing fluid.  In the case of the copper-coated steel plates 11 shown, and where the shell 10 is also of steel, the main weld 15 (Fig. 2) is a steel weld, weld 16 is a silicon bronze or "Monel" (Registered Trade Mark) metal weld, and weld 17 is a weld of deoxidized copper, the layer 16 preventing pick-up of iron by layer 17.  Where the tube 21 shown in Fig. 3 is copper, welds 22a and 22 are of the same material as 16 and 17 of Fig. 2 respectively.  The lining sections may consist of plates curved cylindrically, or strips arranged in the form of spiral.  U.S.A. Specification 2,209,290 also is referred to.
Patent GB-770753-A (GB)
Title: Improvements in or relating to apparatus for the vaporisation of metals and metalloids
Inventor: HILLIARD ALFRED
IPC: C23C14/26
Filed: 1952-12-31
Abstract: 770,753. Coating by vapour deposition. EDWARDS & CO. (LONDON), Ltd., W. Dec. 23, 1953 [Dec. 31, 1952; Sept. 18, 1953], Nos. 35750/53 and 25887/53. Divided out of 770,751. Class 82(2) [Also in Group XI] An apparatus for vaporizing metals and metalloids, e.g. aluminium, comprises an electrically heated radiator element having a cavity therein, an evaporator base in the form of a block located in the cavity with a space between the walls of the cavity and the side and bottom surfaces of the block, such space being in direct communication with a space above the block and means for feeding the material continuously to the block. An additional heater may also be provided. The heater, Figs. 1 and 2, is in the form of a carbon or refractory carbide bar 10 of dumb-bell shape with an enlargement centrally having a cavity 11 in which is mounted the evaporator base 12. The latter is formed with lugs 13 and may be of tungsten carbide. Metal is fed to the block at 15. Alternatively, Fig. 3, the block has radial projections 14, and a refractory liner 16 is provided inside the cavity of the carbon heater. As a further alternative, high frequency induction heating may be used.
Patent GB-901349-A (GB)
Title: Improvements in or relating to scaffolding
IPC: E04G1/00
Filed: 1957-11-16
Abstract: 901,349. Scaffolding. BURTON, J. Nov. 17, 1958 [Nov. 16, 1957], No. 35767/57. Class 20 (2). Tubular scaffold frames carry welded nuts 11 in which are detachably screwed threaded studs 10 The slotted end 17 of a bracing tube 16 engages over the stud 10 and is clamped by a captive wing- nut 15. Instead of the wing nut 15, the stud may carry a hinged extension which can be pivoted in alignment or transverse to the stud. Specifications 901,346, 901,348 and 901,352 are referred to.
Patent GB-1203761-A (GB)
Title: Improvements relating to current transformer assemblies
Inventor: SEDDON JOHN
IPC: G01R15/14
Filed: 1966-08-10
Abstract: 1,203,761. Frequency demodulation; pulse modulation circuits. A. REYROLLE & CO. Ltd. 8 Nov., 1967 [10 Aug., 19661, No.35802/66.. Headings H3A and H4L. [Also in Division G1] A system for transmitting a waveform corresponding to that existing in a high voltage line comprises a transmitter located adjacent the high voltage line and emitting pulses of electromagnetic radiation the mark-space ratio of which is modulated in accordance with the line current variations picked up by a current transformer coupled to the line and a receiver located at earth to receive the pulses. Fig. 1 shows the transmitter circuit comprising a transistor multivibrator circuit controlling emission of light (infra-red) pulses from a photo emission diode 35. Supply for the circuit is obtained from a current transformer coupled to the line. The current transformer 12 is arranged to modulate the output of the multivibrator, oscillating at about 2 kc/s., with the supply frequency variation at 50 c/s. During one half cycle of the multivibrator the current transformer superimposes an additional component of charging current for the timing capacitor 25 and during the other half cycle subtracts or by-passes a corresponding component. This modifies the mark-space ratio and thereby provides a form of pulse width modulation. The receiver circuit comprises an infra-red sensitive diode 40 connected to a transistor amplifier. The transistor 70 is a switching transistor and is in circuit with a Zener diode 74 such that the input voltage to filter circuit 81- 87 switches between two well-defined states which do not depend on amplitude variations in the diode output or on the gain of the amplifier. The filter eliminates the multivibrator carrier frequency and the side bands arising due to the fact that the pulses are of square waveform. The output of the filter circuit is the original load current at 50 c/s. The transmitter may be modified by connecting the current transformer secondary 12 between the negative ends of 19 and 20 and having a centre tapping connected to the negative supply or by the use of a further pair of transistors to the multivibrator to give some amplification. The optical link between transmitter and receiver may be by a bundle of fibre optic devices or a single rigid transparent rod. Alternatively parabolic mirrors for source and detector and a lens system, may be used.
Patent GB-514150-A (GB)
Title: Improvements in valves of the plug type
IPC: F16K1/02
Filed: 1938-12-30
Abstract: 514,150. Valves. RAISTRICK, H. Dec. 30, 1938, No. 36047/37. [Class 135] A screw-operated stop valve has a tapered valve member 3 non-rotatably secured to the valve spindle by a non-circular head 7 slidably engaging an undercut transverse groove in the valve member. The seating surface is formed on an internal rib 10 at the upper end of a removable cage member 11 secured in position by a screw-threaded member 11a passed through the bottom of the casing. The member 11a is formed with an axial hole adapted to receive a depending guide spindle 12 on the valve member. By these means the valve member is maintained in accurate alignment with its seat so that on removal of a detachable cover a tool, the usual actuating spindle, or a power-driven spindle may be inserted to rotate the valve on its seat to grind-in the contacting surfaces.
Patent GB-775268-A (GB)
Title: Apparatus for purifying gases
IPC: C10K1/02
Filed: 1955-12-15
Abstract: 775,268. Washing-gases. METALLGES. AKT.-GES. Dec. 15, 1955 [Jan. 14, 1955], No. 36052/55. Class 55 (2). In a gas washer, the gas passes from the inlet 2, through passages 14 formed between bars 11 removably held in cylindrical assembly, to the outlet 3, the bars being shaped at 17 so that, as the assembly is rotated, washing liquid is scooped up to drain through the passages 14 and thus to contact with the gas. The bars may be cast or pressed, e.g. from light metal, without machining; or they may be made from plastics if they are to resist corrosion. The passages 14 have sharply curved double bends 16 to ensure contact of solids with the wet walls of the passages. The bars 11 are removably clamped between a ring 12 and a disc 7, both carried by a hub 8 on the shaft 6.
Patent GB-1108797-A (GB)
Title: Magnet coil
IPC: H01F5/06
Filed: 1965-08-23
Abstract: 1,108,797. Magnet coils. GENERALAL ELECTRIC CO. 23 Aug., 1965 [24 Sept., 1964]; No. 36146/65. Heading [Also in Division B3] In, a magnet coil 10 having wire turns wound to form a winding having an axially throughrunning Cavity and coated with an encapsulating compound, two mutually identical axially hollow end supports 11 structurally unitary with the winding are located one at each end of the winding and extend into the cavity for a length which is short relative to half the winding axial length so that the coating provides the main mechanical support of the coil. The extensions are formed by tabs (12), Fig. 4, and the plastics support is slotted at 13 to facilitate its assembly and accommodate the leads. The wire may be. enamelled and sprayed or coated with an adhesive to temporarily hold the winding together.
Patent GB-315656-A (GB)
Title: Improvements in means for attaching watch and like chains to belts
IPC: A41F9/00
Filed: 1928-04-20
Abstract: 315,656. Gogan, F. A. April 20, 1928. Divided on 298,452. Attaching watches to waist-belts. - A clip device for securing a watch or like chain to a belt or wrist watch strap comprises a plate member 17 having lugs 22 at top and bottom to embrace the top and bottom edges of the belt 10, a lug 14 adapted to engage a slit 11 in the belt to prevent sliding of the device on the belt, and a depending lug 24 to which oneend of the chain 25 may be secured.
Patent GB-1438955-A (GB)
Title: Brazing aluminium
IPC: B23K35/36
Filed: 1972-08-02
Abstract: 1438955 Aluminium brazing fluxes ALCAN RESEARCH & DEVELOPMENT Ltd 26 July 1973 [2 Aug 1972] 36183/72 Heading C7M [Also in Division B3] Al or Al alloy components are brazed together by interposing between the components a layer of an Al alloy solder and a layer of a flux powder comprising a potassium fluoaluminate complex free of unreacted KF and containing reacted KF and AlF 3  in the weight proportions of 40-50: 60-50 and heating to melt the solder and flux. The flux may be made by fusing together Kf and AlF 3 , grinding to -100 mesh and forming an aqueous slurry or K 3 AlF 6  and KAlF 4  may be formed separately and mixed together. 0À5% hydroxymethyl cellulose and up to 5 mole % of an alkali or alkaline earth metal fluoride or ZnF may be added. The flux may be used as an aqueous dispersion, a dispersion in a water dispersible or water soluble resin or mixed with an Al solder alloy and a resin. The solder alloy may contain Al, 10-12% Si and 1-2% Zn. The process may be used in brazing closed heat exchanger assemblies such as motor vehicle radiators and evaporators for air conditioners.
Patent GB-893066-A (GB)
Title: Emulsions, latices and foams
IPC: C08C1/075
Filed: 1960-10-21
Abstract: An emulsion of cis-1,4 polyisoprene is prepared by stirring a solution of synthetic polyisoprene in an inert hydrocarbon liquid into water in the presence of an emulsifier.  The polyisoprene has more than 85% of cis-1,4 units.  The inert liquid may be gasoline or pentane-1.  The emulsifier may be a potassium or sodium salt of rosin acid, oleic, palmitic, stearic, lauric, myristic, arochidic or castor acid, a hydroxyamine of a long-chain fatty acid or p  ester, tridecyl benzyl hydroxy ethyl imidazolinium chloride or stearyl dimethyl benzyl ammonium chloride in a concentration between 0,25 and 10% by weight of the elastomer.  An anti-foaming agent may be added.  If the conditions are such that a water-in-oil emulsion is formed further surface active agents may be added to produce phase inversion.  The emulsion may be turned into a latex by distilling off the solvent by heating.ALSO:A synthetic polyisoprene (with more than 85% of cis-1,4 units) in latex form is made into a foam according to the following recipe:-  .Latex.100 .Sulphur.1-3 .Accelerator.1-5 .Antioxidant.0,5-2 This is matured at a temperature in excess of 45 degrees for at least 18 hours.  To this mixture is added  .Surface active agent.2-7 .Foam stabiliser.0,1-2 .Zinc oxide.1-7 .Gelling agent.0,2-2  and the froth is gelled and vulcanised.  The accelerators specified are zinc diethyldithiocarbomate and zinc mercapto benzthiazole, the antioxidant may be a styrenated phenol, the surfactant may be potassium oleate, the foam stabiliser and thickener may be a mixture of carboxymethyl cellulose and trimene base.  The geller may be sodium silicofluoride.  Sodium hexametophosphate and potassium chloride may be added to improve the appearance of the foam.
Patent GB-1123466-A (GB)
Title: Process for the production of cyanamide dicarboxylic acid esters
Inventor: THOMA WILHELM
IPC: C07D307/12
Filed: 1966-08-12
Abstract: Cyanamide dicarboxylates (some of which are novel) of the general formula ROOC.N(CN).COOR where R represents an aliphatic, cycloaliphatic, araliphatic or aromatic hydrocarbon radical or a heterocyclic radical, which may be substituted, are prepared by reacting alkali metal or alkaline earth metal salts of cyanamide with chloroformates of the formula Cl.COOR in the presence of 0.1 to 10% by weight (based on the chloroformate) of a tertiary organic base and also in the presence of a two-phase, aqueous-organic reaction medium, at a temperature ranging from - 10 DEG  to + 80 DEG  C.  The novel products are stated to be those wherein R represents an unsubstituted C3- 20 aliphatic hydrocarbon radical which may be unsaturated; an aliphatic C2- 20 hydrocarbon radical containing at least one substituent, e.g. halogen, C1- 20 alkoxy or cyanide, which radical may be unsaturated; a cycloaliphatic hydrocarbon radical with 5, 6 or 12 ring carbon atoms, optionally substituted by one or more C1- 12 alkyl radicals; an araliphatic hydrocarbon radical, optionally substituted by e.g. nitro, halogen, C1- 8 alkoxy or cyanide; an aromatic hydrocarbon radical optionally substituted by e.g. C1- 12 alkyl, C1- 8 alkoxy, halogen, nitro, cyanide or a C1- 4 carbalkoxy group, in which two such aromatic radicals may be directly connected by a C-C bond or by an oxygen or sulphur atom or a sulphone group; or a 5-membered or 6-membered heterocyclic radical containing one or two oxygen atoms as hetero atoms, which may be substituted by C1- 4 alkyl.  The products are useful as plant protection agents or as wood preservatives.
Patent GB-729110-A (GB)
Title: Improvements in or relating to apparatus for catching rabbits
IPC: A01M23/00
Filed: 1953-12-31
Abstract: 729,110. Catching rabbits. GOULD, G. A. D., and CULL, F. Dec. 31, 1953, No. 36309/53. Class 5 (1). A device for catching rabbits without damaging the fur or flesh comprises a trap, e.g. a net 2 carried by a frame 1 adapted to be placed over a rabbit which has been dazzled by a beam of light, the trap being pivotally supported from a vehicle such as an agricultural tractor. The frame 1 is resiliently attached as by rubber and canvas strips 4 to arms 6 pivotally mounted on the front of the tractor and connected to the tractor power-lift arms, the beam of light being supplied by the tractor headlamps.
Patent GB-1385094-A (GB)
Title: Gear hobbing machines
IPC: B23F17/00
Filed: 1972-08-03
Abstract: 1385094 Deburring device ZAHNRADFABRIK FRIEDRICHSHAFEN AG 3 Aug 1972 [7 Aug 1971] 36313/72 Heading B3L A deburring device in a gear hobbing machine or removing burrs on the end face of a workpiece 10 during the hobbing operation comprises a deburring tool 2 and a support arm 1 which is mounted on a part of the machine-as shown slidably mounted in a casing 3-for movement in the longitudinal direction of the arm in dependence upon the movement of the hob 15, e.g by means of an hydraulic cylinder 7 controlled automatically by the hob movement. The tool 2 is pivotably mounted in a forked end 11 of the arm 1 by means of a shank 12, screw 13, disc spring 14 and "concave" bush 4 which cooperates with part-cylindrical surfaces 11B, so that the cuting edges 2A can align itself automatically to the cone angle # of the edge of the workpiece, Fig. 1.
Patent GB-914741-A (GB)
Title: Improvements in or relating to arm-rests for seats
Inventor: CURTIS TIMOTHY HERBERT
IPC: B60N2/75
Filed: 1958-11-13
Abstract: 914,741. Arm-rests. CURTIS SECURITIES Ltd. May 4, 1959 [Nov. 13, 1958], No. 36576/58. Class 52 (2) An arm-rest assembly for a bucket or other seat consists of an arm-rest 3, 4 pivoted at 5 to a bar 1 adapted to be attached as by screws to both the seat.part and the back-rest and having secured thereto an angle plate 6 against which the rest abuts in the operative or upwardlyswung positions. The bar 1 can be so constructed as to be attachable at either side of the seat. The arm-rest may be double for attachment between two seats.
Patent GB-1034469-A (GB)
Title: Improvements in and relating to machines for the automatic manufacture of small glass bottles
IPC: C03B23/09
Filed: 1963-09-17
Abstract: <PICT:1034469/C1/1> A machine for the automatic manufacture of small glass bottles from tubing and of the type in which neck-forming members 14, 15 are moved into and out of contact with the workpiece 43 rotatably supported over a mandrel 13, is provided with means for supplying lubricant to the mandrel during the period when no workpiece is present.  A tube 45 is adjustably mounted on a shaft 51 rocked by an arm 58 from a shaft 40 which also controls through a lever system 36, 37, 38, the raising into and lowering from working position of the mandrel 13.  An arm 59 on the shaft 51 actuates a bell-crank lever 63 controlling the operation of a pump 67 to feed lubricant from a container 75 to the tube 45 when the mandrel 13 is lowered.  The mandrel is carried by a tube 32 enclosing another tube 33 through which cooling water is circulated.
Patent GB-987439-A (GB)
Title: Improvements in or relating to electrically heated soldering irons
IPC: B23K3/03
Filed: 1961-10-12
Abstract: 987,439. Electrically-heated soldering irons. R. A. ADAMSON. Oct. 12, 1961, No. 36660/61. Heading H5H. In an electrically-heated soldering iron, the heater wire 11 is space-wound around an insulating tube 10, and its ends are secured to leadout wires previously secured in place by binding wires which are brought out for terminal connection with the lead-out wires 12, 12a, the front lead-out wire 12 being passed through tube 10. The heater wire is bound in position by a layer of insulating yarn and is then surrounded by a mica lining 14 and a tubular body 15 having a handle and terminal assembly at its rear end. As shown, the tubular body 15 is mounted in a nylon boss provided with terminal connections and secured in handle 22. The rear ends of lead-out wires 12, 12a are encased in glass fibre sleeves 19.
Patent GB-423820-A (GB)
Title: Improvements connected with electric water heaters
IPC: F24H1/20
Filed: 1933-12-30
Abstract: 423,820. Supply and delivery arrangements for hot-water boilers. SANTON, Ltd., and SANDERS, H. C., Somerton Works, Newport, Monmouthshire. Dec. 30, 1933, No. 36682. [Class 64 (i)] In an electrical water-heater in which cold water fed under pressure discharges hot water through an overflow outlet 4, a chamber 7 with a restricted lower open end is disposed over an inlet pipe 1 so as to direct water to the lower part of the tank, and a waterlevelling chamber 9 also with a lower open end is disposed over the chamber 7 so that when water is fed into the tank, the velocity of the water passing out of the chamber 7 will withdraw water from the levelling chamber 1. When the inlet is closed, water returns to the chamber 9, thereby lowering the level in the heater below the top of the outlet 4 and preventing leakage on heating. Small holes 8, 11 are provided in the chambers.