baber/WOPTO huggingface dataset:
Patent GB-954733-A (GB)
Title: Carbamic acid esters
IPC: B65D41/10
Filed: 1962-07-20
Abstract: The invention comprises carbamic acid esters of the formula: <FORM:0954733/C2/1> wherein R1 and R2 represent alkyl radicals containing 1 to 4 carbon atoms and R3 is an alkyl radical containing 2 to 4 carbon atoms. The novel compounds may be made by reacting an appropriate alkyl-dialhylaminophenol with methyl isocyanate, methyl carbamic acid chloride or N-methyl phenyl carbamate. Alternatively, an appropriate alkyl-dialkylaminophenyl ester of chloroformic acid or an appropriate bis (alkyl-dialkylaminophenyl) carbonic acid ester is reacted with methylamine. Examples describe the preparation of 3-methyl-ethylamino -4-methyl-phenyl -N- methyl carbamate and 3-diethylamino -4- methylphenyl -N- methyl carbamate.ALSO:Insecticidal compositions comprise a carbamic acid ester of the formula <FORM:0954733/A5-A6/1> wherein R1 and R2 represent alkyl radicals containing 1 to 4 carbon atoms and R3 is an alkyl radical containing 2 to 4 carbon atoms, and a solid or liquid diluent or carrier.  In examples, a composition is made and tested in which active ingredients in which R2 is methyl and R3 is ethyl is mixed with the same weight of dimethyl formamide, benzyl hydroxyl polyglycol ether is added as an emulsifier, and the mixture is diluted with water.
Patent GB-1042137-A (GB)
Title: Modified bar-type electric heating element for display purposes
Inventor: MOSS ARTHUR WILLIAM
IPC: F24C7/00
Filed: 1962-07-21
Abstract: A bar-type heating element for use in an electric fire is covered with a removable covering of a red or orange fluorescent material, which simulates the glow of an energized element during display of the element.  The covering may be of paper, plastic or metal foil coated with a fluorescent material, slipped over or wrapped around the element, and is removed before use of the element.
Patent GB-181292-A (GB)
Title: Improvements in golf clubs
IPC: A63B53/04
Filed: 1921-10-25
Abstract: 181,292. Spencer, E. S. Oct. 25, 1921. Golf clubs.-A golf club has a homogeneous head formed with its rear side as a substantially vertical wall, its toe at right-angles to this wall, and its shaft secured to the heel of the head approximately parallel to the plane of the rear side. The club heads may be made from a metal alloy, compressed fibre, compressed paper, &c. The driver shown in Figs. 1 and 2 comprises a vertical rear side 2 and a toe portion 3, 4 substantially at right-angles to the rear side. This arrangement of the rear side and toe assists the player to address the ball correctly for a straight drive. Tht width of the toe portion 3, 4 may be greater than, equal to, or less than the width at the heel. The shaft 12 is secured to a short socket 11 and is arranged parallel to the rear side 2. In Fig. 5 is shown a section through a mashie, the top of the head being reduced to a straight line 22. The sole may be slightly curved or may be bevelled off as indicated by broken lines.
Patent GB-658302-A (GB)
Title: Improvements in or relating to control mechanism for aircraft
Inventor: BOWER CHARLES
IPC: B64C13/04
Filed: 1948-11-01
Abstract: 658,302. Aircraft controls. REID & SIGRIST, Ltd. Nov. 1, 1948, No. 28303. [Class 4] A control mechanism for aircraft aileron, elevator and rudder control surfaces includes a single manually operable control member connected to a control rod for actuating the control surfaces independently or in unison, the control member being operable to move the control rod along its longitudinal axis to actuate one of the surfaces and to rotate it about its axis to actuate another of the surfaces, the control rod being formed in two parts pivotally 'connected together, means being associated with that part of the rod connected with the control member for actuating the third surface upon movement of that part of the rod about the other part thereof. As illustrated, the control mechanism (shown in plan view), is arranged so that the pilot may lie in the prone position and comprises a control member 13 with a pair of hand grips 25, 26, the member 13 being connected to the control rod which is in two portions 19, 21 connected by a universal joint 22, the portion 21 operating the ailerons and elevators. The forward portion of the rod 19 is mounted for longitudinal sliding movement in a trunnion-block 38 mounted at the end of the arm 37 of a bell-crank lever, whose other arm 41 is connected to a push-pull rod 42 operating the rudder. To operate the elevators, the unit 13 is moved in the fore-andaft direction, the extent of movement being limited by flanges 31, 32 engaging vertical arms 39 on the trunnion-block 38, while the ailerons are operated by rotation of the member 13 about the axis of the rod 19. The bell-crank 37, 41 is rotated to move the rudder-operating rod 42 by lateral movement of the member 13 and rod 19 about the joint 22. When the member 13 is moved forwardly to depress the elevators the distance between trunnion-block 38 and joint 22 is reduced, thus giving a smaller rudder movement when the aircraft is diving, and conversely when it is climbing. The hand grips may incorporate auxiliary controls, for example the hand grip 26 may include a pushbutton 60 for operating an air-to-ground radio switch, Fig. 5 (not shown), or twist-grip engine throttles may be incorporated, Figs. 6 and 7 (not shown). In the construction according to Fig. 6 a screw-and-nut arrangement transmits rotation of the hand-grip to the throttle control, while that according to Fig. 7 includes a clutch by which the pilot may connect or disconnect the hand grip and throttle control.
Patent GB-1393395-A (GB)
Title: Purification of gases
IPC: B01D53/50
Filed: 1972-06-16
Abstract: 1393395 Absorbing sulphur trioxide and mist ROHM & HAAS CO 16 June 1972 [21 July 1971] 28333/72 Headings B1L and B1T Sulphur trioxide is preferentially absorbed from a gas stream which may also contain sulphur dioxide by absorption with a crosslinked macroreticuler, weak-base, anien-exchange resin containing units from a monomer containing at least one OH 2 =C <  group and at least one heterocyclic ring. Numerous examples are given for the groups while the exemplified heterocyclic rings are vinyl pyridines. Regeneration, forms of resin and temperatures at which the process may be performed are exemplified. Sulphuric acid mist on its own or which may be present with the SO 3  can also be re-moved by contacting in a similar process
Patent GB-930370-A (GB)
Title: Cleansing agent for radioactive contamination
Inventor: STEVENSON DAVID GORDON
IPC: G21F9/00
Filed: 1960-08-16
Abstract: A cleansing material in liquid form which is suitable for cleaning surfaces which have been radioactively contaminated comprises a mixture of a detergent composition and a liquid material, e.g. natural rubber latex stabilized with ammonia, which will dry, cure or polymerize to form a continous coherent flexible film which can be stripped from the surface to which it has been applied.  The detergent composition may contain an ammonium or alkali metal polyphosphate such as sodium tripolyphosphate; sodium carbonate; hydrochloric acid; an amino- or imino-polycarboxylic acid such as ethylenediamine tetra-acetic acid; a hydroxytricarboxylic acid such as citric acid; a non-ionic surface active agent such as an alkylphenolethylene oxide condensate; an anionic surface active agent such as a C10-18 sec. alkyl sulphate or an alkylaryl sulphonate; sodium carboxymethyl cellulose; thickness, such as ammonium or alkali metal polyacrylates; abrasive scouring powders; and pigment.  In use, the composition is sprayed or brushed on to the contaminated surface, allowed to form a film, and the film together with most of the contamination then stripped from the surface.  Specifications 848,588 and 856,377 are referred to.
Patent GB-730984-A (GB)
Title: New or improved apparatus for tensioning and fastening a metal band
IPC: B65B13/34
Filed: 1952-11-12
Abstract: 730,984. Bale tying machines. FROMM GES., A., and KUONI, X. Nov. 12, 1952 [Nov. 13, 1951], No. 28491/52. Class 45. [Also in Group XV] A device for tensioning and sealing a metal band by means of a sleeve 30 extracted from a magazine 25 comprises a casing 2 containing a sliding punch 13, having two jaws 17 pivoted thereon and vertically reciprocable by a control lever 9 which also operates two slides 3 which close the jaws to form the sleeve around the band. When the sleeve is positioned, an eccentric 8, also driven by the lever 9, engages a roller 15 on the punch 13 causing a pair of projections 20a of a notching knife 20 to lock the sleeve and bands together and cause a knife 21 to weaken one strand of the band so it may be severed from the supply coil. The band is positioned in the device below a tensioning roller on a shaft 54 which is lowered onto the band through an eccentric mounting and its operating lever 48. This lever also moves a sleeve into position, by means of linkage 47, 41, pawl 40 and lever 39 engaging a slide in the magazine 25. When the sleeve is in position the slide is released as the pawl 40 is raised above the lever 35 by a pin and slot device 80-82. The band is now tensioned by a pawl and ratchet 62, 56 from a lever 60, after which the control lever 9 is operated to form the seal. The band is held in place by a spring pawl 79, Fig. 9, which is released by a pin 74 on the return stroke of the lever 48. A control bolt prevents tensioning of the band until it is in correct position.
Patent GB-694799-A (GB)
Title: Improvements in or relating to machines for cutting out segments from boards
IPC: B26D7/01
Filed: 1950-11-22
Abstract: 694,799. Drilling. McAINSH, J. M. Feb. 15, 1952 (Nov. 22, 1950], No. 28527/50. Class 83 (iii). A machine for cutting segments from a board comprises at least one main workholding finger 8 which passes within a tubular cutter 5 as it cuts the board, means 12 ... 14 being provided for moving the finger clear of the work against spring means 10. The cutters 5 are mounted on a sliding head 6 and are rotated by means which also rotate a crank 4 to move the work-table 2 vertically. Pressure on a pedal 14 raises the fingers 8 and supplementary fingers 9 to allow a board to be placed on the table against a stop 22. The fingers 8 may be released from the work by tongues 16 slidable in the table 2 by a bar 17 and actu. ating means 20, 21. The supplementary fingers 9 serve to grip the work when the segments have been cut away.
Patent GB-746177-A (GB)
Title: Oxidation of steroids
IPC: C07J5/00
Filed: 1952-11-12
Abstract: Steroids containing an 11-keto group are prepared by oxidizing the corresponding 11a - or 11b -hydroxy steroid in an organic solvent, which is water-immiscible or incompletely watermiscible, with aqueous chromic acid, at a temperature below 30 DEG  C. Specified organic solvents are benzene, toluene, chloroform, ethyl acetate, hexane, o-chlorotoluene, carbon tetrachloride and chlorobenzene, and the oxidizing medium may be prepared from an alkali metal dichromate and a mineral or sulphonic acid, e.g. sulphuric, phosphoric or b -toluene sulphonic acid.  Numerous starting steroids are listed including corticosterone acetate, 17-hydroxy-corticosterone acetate, 11:17-dihydroxyprogesterone, 3 - keto - 11:17:20:21 - tetrahydroxy - 4 - pregnene 20:21 - diacetate, 3:11:21 - trihydroxy - 20 - ketoallopregnane 21 - acetate, 3:11:17:21 - tetrahydroxy - 20-ketoallopregnane 21 - acetate, 3 - acetoxy - 11 - hydroxypregnan - 20 - one, 3:11 - dihydroxypregnane - 20 - one, 11 - hydroxy -, 3:11 - dihydroxy - and 3:11 - dihydroxy - 12 - ketocholanic acid, 3:11 - dihydroxyetiocholanic acid and 3:11 - dihydroxyandrostane - 17-one. In examples (1) a solution of 11a -hydroxypregnane - 3:20 - dione and 1a  - hydroxyallopregnane - 3:20 - dione in chlorobenzene is added gradually with stirring to an ice-cooled mixture formed by adding concentrated sulphuric acid to an aqueous solution of sodium dichromate, the chlorobenzene layer is then separated, purified and evaporated to dryness, and the residue is extracted with a mixture of acetone and ether (or with ethyl acetate) to dissolve pregnane-3:11:20-trione and leave a residue of allopregnane-3:11:20-trione; (2) and (3) the starting materials of (1) are similarly oxidized separately; (4) 11a -hydroxyprogesterone is similarly oxidized to 4-pregnene3:11:20 - trione; (5) 3a :11a  - dihydroxypregnan - 20 - one is similarly oxidized (but using n-hexane as solvent) to pregnane-3:11-20-trione; (6) the sulphuric acid in (2) is replaced by p-toluenesulphonic acid; (7) 17-hydroxycorticosterone 21-acetate is oxidized as in (1) to 17 - hydroxy - 11 - dehydrocorticosterone 21-acetate.  Specifications 724,094, 738,311, 738,580 and 738,635 are referred to.
Patent GB-1342415-A (GB)
Title: Electrolytic nickel-plating baths containing levelling and  brightening agents
IPC: C25D3/12
Filed: 1971-06-17
Abstract: 1342415 Alkylolating poly(thioacrylamide) REGIE NATIONALE DES USINES RENAULT and AUTOMOBILES PEUGEOT 17 June 1971 [20 July 1970] 28547/71 Heading C3P [Also in Divisions C6-C7] Polyacrylthioamide is alkylolated by reaction with an aliphatic or aromatic aldehyde, e.g. formic aldehyde. The product may be used in a nickel electroplating bath.
Patent GB-464477-A (GB)
Title: Improvements in or relating to photographic sculptural reproduction
IPC: G03F7/00
Filed: 1935-10-16
Abstract: 464,477. Photographic statuary reproduction. JEFFREYS, S. T., and PETTY, H. J. Oct. 16, 1935, No. 28627. [Class 98(ii)] A method of sculptural reproduction employs recording apparatus comprising a camera and light-projector mounted on a common table which is rotatable about a vertical axis offset at a distance from the object, whereby a series of profiles are photographed in successive movements of the table. The subject 2 to be reproduced is mounted upon a table 1 which is rigidly connected to pillars 6 supporting three spaced tables A, B, C. Each table A, B, C is rotatable about a vertical axis 5 and carries a projector 3 and a kinematograph camera 4 inclined at a known angle to each other. The beam from each projector can swing from one side of the table 1 to the other, and is intercepted by a straight edge screen to give a vertical shadow line on the subject. The camera shutter is synchronously operated with the movement of the table. A radius indicator 14 is mounted behind the subject and has the shape of a segment of a circle centred on the axis 5. In a modification, a single recording apparatus may be used and moved to different positions of operation. The reproducing apparatus comprises a table 21 mounted and power driven in vertical guides 22, the guides being mounted on a platform 34 which rotates under the action of a worm wheel 39. The cutting tool 25 and its flexible drive 26 are mounted upon a carrier 27 which also carries a pointer 38 mounted close to the control screen 35. A handle 29 controls the cutting tool 25 and pointer 38 by means of bevel pinions, a pinion wheel 32 and a rack 33. A block of material is fixed upon the turntable 37 and the cutting tool is moved so that the pointer 38 follows the recorded outline on the screen, the record being changed for each position of the table 34. Specifications 190,479, 254,791, 298,377, [all in Class 98 (ii)], and 464,411 are referred to.
Patent GB-778029-A (GB)
Title: Ethyl chloride manufacture
IPC: C07C17/10
Filed: 1955-10-07
Abstract: Ethyl chloride is prepared from a feed stream containing ethane and ethylene by contacting with a stoichiometric excess of hydrogen chloride in the presence of a hydrochlorination catalyst in a reaction zone maintained at superatmospheric pressure and at an elevated temperature, said hydrochlorination catalyst being aluminium chloride or a halide of zinc, bismuth, boron, antimony, iron or vanadium, and the formed ethyl chloride is recovered from the product and the unreacted components of the effluent are subsequently chlorinated to produce additional ethyl chloride and by-product hydrogen chloride.  The chlorinator reactor operates at a substantial pressure differential, e.g. 3 atmospheres above that employed in the hydrochlorination reaction, e.g. 2.30 atmospheres.  The hydrochlorination reaction may be effected between 20-200 DEG  C. and the chlorination reaction between 300-650 DEG  C.  After recovering ethyl chloride from the chlorination reaction product, the effluent consisting essentially of unreacted ethane, ethylene and hydrogen chloride is passed to the hydrochlorination reactor where it is mixed with fresh ethane and ethylene.  Preferably about 2-15 per cent excess of hydrogen chloride is employed in the hydrochlorination step.  The chlorination reaction may be effected using a fluidized bed type of reactor.  As the fluidized mass there may be used sand, silicon carbide, graphite, alumina, pumice, silica, silica-alumina gel, synthetic aluminium silicate, kieselguhr and fuller's earth. The velocity of the reactants in this zone should be sufficient to fluidize the catalyst.  As initial fresh feed material there may be used a mixture of ethane and ethylene, e.g. containing 35-55 per cent ethylene.  Fresh hydrogen chloride is required only to initiate the process.
Patent GB-1269807-A (GB)
Title: Improvements in or relating to a crosslinked polymer of vinylpyrrolidone
Inventor: FIELD NATHAN DAVID
IPC: C08J9/28
Filed: 1969-06-06
Abstract: 1,269,807. Cross-linked vinyl pyrrolidone polymer beads. GAF CORP. 6 June, 1969 [12 June, 1968], No. 28687/69. Headings C3C and C3P. [Also in Division C6]  Porous, cross-linked beads or granules of a vinyl pyrrolidone polymer are obtained by polymerizing a mixture of vinyl pyrrolidone and a cross-linking monomer in an aqueous solution of an electrolyte and in the presence of a freeradical initiator, at 50‹ to 80‹ C. In examples, vinyl pyrrolidone is copolymerized with methyl-  ene-bis-acrylamide, or ethylene-, tetraethylene- or polyethylene-glycol dimethacrylate, in the presence of, as electrolyte, Na 2 SO 4  or NaCl solution, and also Na 2 HPO 4 , and in some cases ethanol.
Patent GB-1174321-A (GB)
Title: An Improved Variable Speed Gear.
Inventor: LEE GEORGE
IPC: F16H13/10
Filed: 1967-06-22
Abstract: 1,174,321. Variable-speed friction gear. H. L. F. ENG. DEVELOPMENTS Ltd. 20 June, 1968 [22 June, 1967], No. 28773/67. Addition to 1,084,963. Heading F2D. In the variable-speed friction gear described in the parent Specification the barrel-shaped idler roller is modified to ensure contact with the driving and driven discs. As shown in Fig. 3, the roller 14a is divided into two portions by a slightly inclined transverse plane, roller bearings 23 carried by a cage being mounted between the two portions which are urged apart by loading springs 24 in one portion and which bear against an axial pin 26 mounted in the other portion. In the form shown in Fig. 4, the dividing plane is perpendicular to the roller axis and the rollers 27 are mounted between opposed cam recesses (29) in the end faces of the roller portions.
Patent GB-298478-A (GB)
Title: Improvements in or relating to concrete piles and process of constructing same
IPC: E02D5/38
Filed: 1928-10-06
Abstract: 298,478. Desauw, A. Oct. 8, 1927, [Convention date]. Piles.-A concrete pile cast in situ consists of a core of reinforced concrete protected during casting by a sheathing which remains in the ground and forms the reinforcing, and an annular concrete shell which is cast in the ground between the core and a temporary sheathing. Fig. 1 shows a temporary sheathing a, which consists for example of a steel tube, driven into the ground, and a shoe b covered with liquid concrete c. A permanent sheathing or reinforcing d is lowered on to the concrete c, forming an annulus e. This sheathing is made of perforated or expanded sheet metal, or metal mesh-work, reinforced by vertical bars f and by ties f<1> either inside or outside it, and has spacers g integral with collars h. The sheath d is then filled wth plastic concrete in successive layers, which are carefully tamped, part of the concrete exuding through the meshwork. The temporary sheath a is then withdrawn gradually, and the pile is completed during this withdrawal by pouring concrete into the annulus e. This is preferably done under pressure, the top of the sheath a being sealed by a gas-tight cover.
Patent GB-390087-A (GB)
Title: Signboard letters
IPC: G09F7/14
Filed: 1932-10-14
Abstract: 390,087. Sign characters. KRZIZA, J. A., 23, Baggesensgade, Copenhagen. Oct. 14, 1932, No. 28781. Convention date, Oct. 14, 1931. [Class 3 (ii).] Sign characters or punctuation marks are formed of strip material which is I-shaped in cross section, and comprises a rear flange 1 for glueing to a supporting surface, a front flange 2 parallel thereto and representing the character &c., and one or more intermediate web parts 3. In the case of punctuation marks the web part 3 may be cylindrical. The material used. is preferably plain or coloured sheet metal or celluloid.
Patent GB-1488189-A (GB)
Title: Water jet marine propulsion units
IPC: F04D29/44
Filed: 1975-07-09
Abstract: 1488189 Water jet propulsion HYDRO-TECH CORP 9 July 1975 [1 Aug 1974] 28809/75 Heading B7V A water-jet marine propulsion unit comprises a pump having a double-suction impeller 104 with two inlets 144, 146 and an exhaust 166, the inlets being formed by sidewalls 162, 164 and pump casing parts 158 and 160 and presenting a first leading edge 152 to the inlet 144 and a first trailing edge 154 positioned behind and below the edge 152, when the unit is stationary, and a second leading edge to the inlet 146, which is the edge 154, and a second trailing edge 161 which is behind and above the first leading edge 152. The unit is adapted to be mounted outboard on a hull 153 and driven by an inboard engine via a splined shaft 36.
Patent GB-1033343-A (GB)
Title: Improvements in or relating to apparatus for drilling deep boreholes
IPC: E21B6/00
Filed: 1964-07-13
Abstract: 1,033,343. Boring earth &c. GEBR BOHLER & CO. A.G. July 13, 1964 [July 15, 1963], No. 28812/64. Heading E1F. A pneumatic "down-the-hole" drill mounted on rods 7 carries down the hole a dirt-water trap 5. The drill which is a percussive one carrying a corebit 1 is rotated by a motor 8, and also carries down the hole an oiler 4 and a check valve 6. The trap, oiler or valve may be included in the drill body.