baber/WOPTO huggingface dataset:
Patent GB-632846-A (GB)
Title: Improvements in and relating to brakes for vehicles and other uses
IPC: F16D51/00
Filed: 1946-05-07
Abstract: 632,846. Internal shoe brakes. FARKAS, P. May 7, 1946, No. 13841. Convention date, Aug. 2, 1945. [Class 103 (i)] A brake comprises a drum, two or more sets of shoes mounted side-by-side therein, means for adjusting the shoes of each set relative to one another, and means operable by a single control for actuating all the shoes simultaneously. In one form, Figs. 1 and 3, twin sets of shoes are activated by pairs of toggle links 30, 31 embracing the shoe webs, the lower ends of the links 30 being pivoted at 32, 32<SP>1</SP> to caps 33, 34 pivoted to a rocking lever 37 coupled by a link 39 to an actuating lever 41. The lower ends of the shoes anchor on pairs of adjustment members 13 located in a housing 12, the members of a pair being formed with left and right-hand threads and rotatable from the exterior of the brake by bevel-gearing, so that each set of shoes may be adjusted independently. Each shoe is formed in two parts interconnected by a resilient friction coupling as described in Specification 615,924. In a second form, Fig. 5, the upper ends of the shoes carry pins 46, 47 and 46<SP>1</SP>, 47<SP>1</SP>, which are notched to receive the ends of pairs of toggle links 50 and 51 engaged respectively by a cap 54 bearing against a sleeve extension 55 of a hydraulic cylinder 57, and a cap 52 secured to a rod 53 passing through the cap 54 and sleeve 55 and secured to a piston 58. Pressure-liquid is supplied to the cylinder through a pipe 61 to effect relative movement of the caps against the action of a return-spring. The brake may also be applied manually by pulling on a Bowden cable 63 attached to the piston, the sheath 64 of the cable -bearing against the cylinder. The lower ends of the shoes anchor on pairs of left and right-hand screw-threaded adjustment members 71 and 69, Fig. 6, operable independently through gearing 70 and 68 by concentric shafts 67, 66. In a modification, Fig. 7 (not shown), the actuating shafts of the adjustment members project on opposite sides of the housing 12. In a further modification, Fig. 9, the adjustment is effected by screwed members 74 and 75 having conical ends engaging cam surfaces on members 78, 78<SP>1</SP>, and 79, 79<SP>1</SP>, secured to the shoe webs. In a further form, Fig. 10, the shoes are actuated by wedgemembers 84, 87 bearing against rollers carried by the ends of the shoes, the member 87 being secured to a sleeve 88 forming an extension of a diaphragm chamber 99, and the member 84, to a rod 85 secured to the diaphragm 86. The chamber may be evacuated through a pipe 100 to apply the brake. Fig. 12 shows another form in which a pair of H-shaped toggle links 90, 91, having their ends engaged in notches in members 93, 94 secured to the ends of the shoes, are actuated by a cap-member 92 secured to an operating-rod 95.
Patent GB-1223777-A (GB)
Title: Halogenated acids and their conversion to indole derivatives
Inventor: GAL GEORGE
IPC: C07C51/145
Filed: 1969-03-17
Abstract: 1,223,777. 2,3 - Dihalopent - 3 - enoic acids; indole derivatives; organopalladium compounds. MERCK & CO. Inc. 17 March, 1969 [23 March, 1968], No. 13875/69. Headings C2C and C2J. Novel compounds of formula wherein X is halogen (especially Cl and/or Br) are prepared by treating a CH 3 CH : CXCH 2 X/ PdCl 2  complex with gaseous CO under pressure (followed by treatment with water), and optionally reacting (I) in presence of a base with a N - (4 - chlorobenzoyl) - 4 - (R 5 ) - aniline (II) to give compounds of formula wherein R 5  is alkoxy or dialkylamino. In Example 4, 4-chlorobenzoyl chloride is reacted with N,N-dimethyl-p-phenylenediamine to give (II)-HCl(R 5 =NMe 2 ), from which the base is liberated by treatment with NaOH.
Patent GB-895142-A (GB)
Title: Improvements in furniture and like joints
Inventor: HALE GERALD CECIL
IPC: F16B12/48
Filed: 1958-05-01
Abstract: 895,142. Furniture joints. ROBIN & SONS Ltd., H. April 1, 1959 [May 1, 1958], No. 13886/58. Class 52(2) In a furniture joint such as the connection of a leg to a table wherein a tubular leg 11 fits over a tubular boss 9 secured to the table by a bolt 4 and washer 3, a locking device in the form of a strip 12 of spring steel with teeth 14, 15 and a flange 13 is positioned between the parts in a recess 10 formed in boss 9. In a modification, Fig. 4, a length of spring steel strip 27 having legs 28, 29 and a tongue 31 to engage in an aperture 26 in the leg 25 and teeth 32 to engage the boss 24.
Patent GB-553955-A (GB)
Title: Improvements in or relating to electro-magnetic sound-transmission apparatus
IPC: H04R25/00
Filed: 1941-10-28
Abstract: 553,955. Telephone instruments. GOLDSCHMIDT, R., Oct. 28, 1941, No. 13891. [Class 40 (iv)] A deaf-aid bone-conduction apparatus comprises in combination a magnet with speech windings 17 and a ferro-magnetic armature 10 so formed that it may be surgically inserted beneath the skin 13 of the user, the skin forming a resilient barrier between the armature and the magnet poles so that the impulses conveyed to the armature by the speech currents may be transferred by it to the skull. In the form shown, the armature is provided with a peg 11 which is driven or screwed into, or is in contact with, the mastoid bone 12. The armature may consist of a perforated plate, or it may be slotted as shown in Fig. 5 to form two springs of differing vibration frequencies, for example of about 800-1500 cycles per second. It may be plated with non-corrosive material or be made of or clad in stainless steel of moderate chromium content and in an annealed condition. According to the Provisional Specification, the armature may be made hollow in the form of a flat drum; also, a defective tonal response of the deaf subject may be corrected by a resonance introduced into the electric circuit by a reed bridging the poles of the magnet with a small leakage gap.
Patent GB-882394-A (GB)
Title: Improvements in or relating to non-concussive water and the like taps or valves
IPC: F16K47/02
Filed: 1957-05-01
Abstract: 882,394. Valves. SHEARDOWN, J. M. April 30, 1958 [May 1, 1957], No. 13918/57. Class 135. A slow-closing tap in which the closure member, having a sealing ring 12 coacting with a seat 11, is opened against a spring 14 by depression of a knob 7 has a resilient cupwasher 18 operating in a chamber 17 on the downstream side of the seat 11 so that the rate of closure of the valve is determined by escape of water from the chamber above the cupwasher through a passage controlled by a needle valve 25 which can be adjusted after removal of a screw 9. The outlet spout 3 is shaped so that the chamber 17 is always full of water. In a modification the chamber 17 is formed in an extension of the bonnet 4 and is sealed at its lower end around the valve stem to constitute a closed dashpot filled, preferably, with distilled water. Also described are a selfpriming tube for the chamber 17 in a tap for horizontal installation, a notch in the wall of the chamber 17 to obtain accelerated closure as the closure member approaches its seat, and a spring-loaded valve which engages the seat when the main closure member is removed.
Patent GB-312992-A (GB)
Title: Improvements in or relating to films for colour photography
IPC: G03C7/14
Filed: 1929-05-04
Abstract: 312,992. Kodak, Ltd., (Assignees of Capstaff, J. G.). June 4, 1928. [Convention date]. Drawings to Specification. Films for colour photography; preventing halation.-Halation is avoided in plates or films for lenticular-screen colour photography or kinematography by including in the support a light-absorbing dye, preferably one which is bleached out by powerful light-action, and which is of such density that it allows at least 70 per cent of the incident light to reach the emulsion. The dye should absorb light of all wave-lengths, though not necessarily to the same extent. Suitable dyes are the cyanins, isocyanins, and carbocyanins, and particularly the dye kryptocyanin described in U.S.A. Specification 1,374,871. The dye may be mixed with the film base dope, which may include in its composition a cellulose ester or ether, or viscose. The dye may be coated on the lenticular face, for example in alcoholic solution which penetrates partly into the base. The Specification as open to inspection under Sect. 91 (3) (a) describes also the application of the invention to plates or films for multicolourscreen photography or kinematography, in which the dye may be coated between the base and the emulsion, the multicolour screen being also so situated, or located on the side of the base remote from the emulsion. This subject-matter does not appear in the Specification as accepted.
Patent GB-641243-A (GB)
Title: Improvements in and relating to self-starting synchronous electric motors
IPC: H02K21/20
Filed: 1947-05-23
Abstract: 641,243. A.C. motors. ORZABAL, R. M. May 23, 1947, No. 13961. [Class 35] A self-starting synchronous motor comprises an electromagnetic multipolar stator having polar teeth grouped in sections and of equal polar spacing with opposite poles arranged in alternate succession and a multipolar rotor polarized by a permanent magnet, the adjacent polar teeth of opposite polarity of the rotor having the same angular spacing as the adjacent polar teeth of opposite polarity of the stator, the field of one of the said sections of the stator teeth being dephased relatively to that of the other section and the stator poles are so mounted as to provide between said sections a mechanical phase displacement equal to the electrical displacement between the stator section fields. The field magnet a, Figs. 1, 2, comprises two polar sections 6, 7 and the cores 8 of the exciting winding have polepieces 10, each of which is provided with perpendicular toothed flanges 11. The teeth 12 of the upper polepieces 10 are alternatively disposed relatively to those of the lower polepieces 10 in order to form alternate polarity of the teeth 12. The poles of one polar section are mounted with a mechanical phase difference relative to those of the other section substantially equal to the electrical phase difference between the field windings which are dephased by inserting a condenser in the circuit of one of these windings. The rotor b is formed by two discs 3 having imbricated teeth 5 which are alternately polarized by an annular permanent magnet 2 mounted concentrically inside the rotor. In a modified form, two similar imbricated pole armatures are mounted in alignment on the same shaft and the field magnet also comprises two polar sections, but with the sets of imbricated polepieces staggered. In a further modification, the field magnet is formed by an annular body made up of two equal halves enclosing the exciting coil. A copper shading ring is so disposed around the field magnet as to affect only one of the polar sections to obtain the required de-phasing. In a still further modification, the armature comprises three coaxial imbricated pole sections co-operating with three polar sections comprised in the field magnet, the windings of which are fed from a 3-phase supply. The wound member may form the rotor co-operating with a magnetized stator.
Patent GB-672789-A (GB)
Title: Improvements in or relating to a method of treatment of wells
IPC: C09K8/64
Filed: 1949-05-25
Abstract: 672,789. Wells. STANOLIND OIL & GAS CO. May 25, 1949. [May 28, 1948; May 28, 1948; Feb. 19, 1949; Feb. 19, 1949] Nos. 13971/49, 13972/49, 13973/49 and 13974/49. Class 85. In a method of increasing the productivity of earth formations into which a well extends, a low penetrating liquid having a dehydration time of at least 1.5 seconds is injected into the formation and pressure applied until an increase in the rate of liquid injection does not increase the liquid pressure and then increasing the penetration characteristics of the liquid. The pressure may be between 0.57 to 0.85 p.s.i. per foot of depth at depths greater than 4,000 feet. The low penetration characteristics of the liquid may be produced by including a bodying agent to form a gel. Bodying agents may be metallic salts of fatty acids. Examples of low penetrating liquids include, 3-10 per cent of aluminium laurate with aluminium naphthate, oleate, or oleate-linoleate in gasoline, kerosine, gas oil, or crude oil; lard, fish oil, cottonseed oil, or chlorinated hydrocarbons containing high molecular weight linear molecules or polymers or rubber ; aqueous liquids containing hydrated starch or water-soluble soaps, particularly for use with brine or waterwells; cobalt-aluminium soaps of fatty acids containing at least 12 carbon atoms and having at least one carboxylic group in chain linkage e.g. stearic, oleic, or palmitic acid or the acid radicles of coconut, pea-nut or palm oils. The liquid may be pumped in before gel formation is complete and may also contain granular material, e.g. sand, to act as props to keep the broken formation open. The gel may be broken by a solvent, e.g. for a hydrocarbon liquid, carbon tetrachloride or carbon disulphide ; for diluted pitch, benzene; for hydroxy aluminium soaps, an amine or an oil soluble sulphonate. 1 per cent of a peptiser may be incorporated in a gel solution and may break the gel after a time delay. The bodying agents may be used in liquids which dissolve waxes or gums or a constituent of the formation ; in the latter case acids may be used with gums, e.g. kauri or copal, as the bodying agent. Packers may be placed in the well above and below the formation to be broken, the low penetrating liquid pumped in, pressure applied by pumping in another liquid, e.g. crude oil,.the well sealed for some time, then a gel breaker may be pumped in and the well produced.
Patent GB-1125697-A (GB)
Title: Improvements in or relating to stepping drives for precision mechanical devices
IPC: F16H27/08
Filed: 1967-03-28
Abstract: 1,125,697. Intermittent gearing. SIEMENS A.G. 28 March, 1967 [28 March, 1966], No. 14004/67. Heading F2Q. [Also in Division B6] In an intermittent drive for a teleprinter, the tooth 6 of a worm on a shaft 4 extends for one complete turn less a gap of width equal to the tooth width of a worm-wheel 1, so that when the gap is aligned with the worm-wheel, the latter is free to rotate unless held by a detent (not shown). A continuously rotating shaft 2 drives the shaft 4 through a friction coupling 3, a pin 3a thereon being engageable by a stop 5 to arrest the shaft 4 with the worm tooth gap aligned with the worm-wheel. The worm tooth entry and exit are purely circumferential, so that on release of the stop 5 the worm-wheel is accelerated smoothly from rest, advanced one tooth pitch, and decelerated to rest. The wormwheel teeth la may comprise pins of involute contour, or be helical. The worm tooth 6 has a trapezoidal cross-section and is tapered at its start 6a.
Patent GB-939771-A (GB)
Title: Improvements in the production of composite steel sheets and methods of and apparatus for the production thereof
IPC: C23C2/38
Filed: 1960-04-21
Abstract: 939,771. Coating by dipping. NISSHIN SEIKO KABUSHIKI KAISHA. April 21, 1960 [April 22, 1959], No. 14054/60. Class 82. [Also in Group XXII] A stainless steel sheet and a carbon steel sheet are coated and joined by dipping in molten terne metal. A stainless steel sheet 1 is fed from a reel 2 over an elastic roller 8 partly immersed in hydrochloric acid 7, the sheet being held in tension against the roller so that only its lower surface is pickled, the pickled surface is coated with a zinc chloride fluxing solution by rollers 38, 40, the flux is dried by a drier 13 and the sheet then passes to rollers 42 which coat the upper surface with an aqueous suspension of powdered calcium carbonate. The sheet 1 after drying in drier 16 passes into a terne metal (5-30% preferably 10% tin remainder lead) bath 23 at 620-680‹ F. preferably 650‹ F. into contact with a carbon steel sheet 17 fed from a reel 18 into a sulphuric acid bath 20 and through molten zinc chloride 26 on the surface of the terne metal into the terne metal bath, the flux coated surface of the stainless steel sheet coming into contact with the carbon steel sheet. The sheets are passed together through palm, fish or mineral oil 34 in a chamber 37 on the surface of the terne metal between pressing rollers 29, 30. Compressed air jets 32 above the palm &c. oil cool the oil and the now soldered composite sheet which passes through squeeze rollers 31 into a rinsing tank 33 and finally to a reel 44. The two sheets are soldered by the terne metal which also coats the outer face of the carbon steel sheet but is prevented from coating the outer face of the stainless steel sheet by the calcium carbonate coating. The stainless steel may be 18 Co 8 Ni type and the carbon steel may comprise 0.03-0.1% carbon. Non-continuous sheets of steel may be employed in the process.
Patent GB-722932-A (GB)
Title: Improved letters, signs, symbols and the like, and method of producing the same
Inventor: BELL-SCOTT DONALD
IPC: G09F7/14
Filed: 1952-06-04
Abstract: 722,932. Signs. COCKADE, Ltd. Aug. 26, 1953 [June 4, 1952], No. 14084/52. Class 3 (2). [Also in Group XV] A cut-out letter symbol or the like 1 is coated on one surface with an adhesive 2 of the kind which remains tacky for a considerable time, the adhesive surface being protected by a layer 3 of flexible material such as paper, the layer being divided into at least two sections. This division may be made by a cut 4 extending from edge to edge across the surface as shown. The cut 4 may be wavy. The symbol is made from thin cardboard and by bending it, the layer 3 may easily be peeled off. The symbols may be made from sheets of carbdoard one side of which is coated with adhesive and covered with a protective layer of paper having cuts extending across it, a plurality of such sheets being clamped together and cut by a fret saw so that adjoining edges of sections of the protective layers extend across a face of each symbol.
Patent GB-1457082-A (GB)
Title: Check or non-return valves process for the preparation of 1-substi
IPC: F16K15/03
Filed: 1974-06-06
Abstract: 1457082 Valves SAAB-SCANIA AB 6 June 1974 [8 June 1973] 14130/75 Divided out of 1457081 Heading F2V The description is similar to that of Specification 1,457,081, but the claim relates to the additional weight on the closure member.
Patent GB-1016959-A (GB)
Title: Substituted steroid hormones
Inventor: HOGBERG KNUT BERTIL
IPC: C07J41/00
Filed: 1963-04-09
Abstract: The invention comprises esters of various estrogenic, androgenic and corticoid steroid hormones and N,N-di-(b -haloethyl)-carbamic acids wherein the halogen is chlorine or bromine, and their preparation by (a) reacting either the corresponding steroid alcohol or an N,N-di-(b -haloethyl)-amine with carbonyl chloride or bromide to give the corresponding chloroformyl ester or amide and reacting this intermediate with the other starting material, or (b) esterifying a free hydroxyl group in a product of (a) with a pharmaceutically acceptable organic or inorganic acid. N - Chloroformyl - N,N - di - (b  - chloroethyl) - amine is prepared by reaction of N,N-di-(b  - chloroethyl)-amine with phosgene. The compounds of the invention have antitumou activity and may be used in combination with a pharmaceutical carrier in forms suitable for oral or parental administration, e.g. as tablets, capsules, solutions or suspensions.
Patent GB-1001364-A (GB)
Title: Process of manufacturing epoxide resins
IPC: C07D301/28
Filed: 1962-04-12
Abstract: Epoxide resins with a softening point of 50-100 100 DEG  C. are prepared by (1) introducing into a mixture of dihydric phenol and epichlorohydrin, glycerol dichlorohydrin or homologues thereof, a dilute aqueous solution of a water-soluble polymer (not less than 0.02% by weight of the dihydric phenol) as a protective colloid, (2) adding aqueous alkali, (3) stirring rapidly to obtain the resin in bead form, (4) removing impurities from the beads, either by grinding them with water, or by dissolving them in a non-polar water-immiscible solvent boiling at 160 DEG  C. or below, distilling off water, adding a polar solvent and removing precipitated impurities by esterifying or filtering.  The solid purified resin can be obtained by evaporating solvent from the solution obtained. For resins with softening points of 100-160 DEG  C., 5-30 parts of an organic water-immiscible solvent for the resin (e.g. xylene) per 100 parts of dihydric phenol are introduced before the water-soluble polymer.  For purifying these higher softening resins, they are dissolved in a mixture of polar and non-polar solvents.  Suitable polar solvents are acetone, methyl ethyl ketone, cyclohexanone, ethyl or butyl acetate or dioxan. Suitable non-polar solvents are benzene, toluene or xylene.  After the condensation, excess alkali is neutralized, e.g. with acetic acid.  In Example (1), a resin softening at 92.5 DEG  C. was prepared from p,p1-dihydroxydiphenyl-2,2-propane and epichlorohydrin. In Example (2), xylene was added to the reaction mixture and the product softened at 132 DEG  C.  In both examples the sodium salt of carboxymethyl cellulose was used as protection colloid.  Other water-soluble polymers mentioned in the Specification are polyvinyl alcohol and other alkali or alkali earth metal salts of carboxymethyl cellulose.
Patent GB-1520395-A (GB)
Title: Hydraulic jack cushioning apparatus
IPC: B66F9/22
Filed: 1977-04-05
Abstract: 1520395 Damping hydraulic actuators TOWMOTOR CORP 5 April 1977 [23 Aug 1976] 14391/77 Heading F1D Damping occurs in an hydraulic actuator, Fig. 1, when a plunger 30, which is captive in a cylindrical member 20 attached to an inner telescopic part of the actuator, abuts an end closure 16 to effect progressive occlusion of holes 25 by a piston 27. The piston is normally urged against a circlip 36 by a spring 34. Figs. 2 and 3 (not shown), illustrate a second embodiment in which a similar damping device is attached to the outer telescopic part of the actuator.
Patent GB-234854-A (GB)
Title: Improvements in lubricating systems for internal combustion engines
IPC: F01M5/00
Filed: 1925-06-02
Abstract: 234,854. Maybach Motorenbau Ges. May 30, 1924, [Convention date]. Operating clutches.-Chambers n<1>, n<2> through which lubricant is circulated by pumps are fitted with foot-operated valves s and pistons b whereby clutches may be operated by closing the valves.
Patent GB-121976-A (GB)
Title: Improvements in or relating to Pads or Cushions for Crutches for Invalids.
IPC: A61H3/02
Filed: 1917-10-06
Abstract: 121,976. Moseley & Sons, D., and Armstrong, R. C. Oct. 6, 1917. Crutches.-A pad for a cushion for a crutch consists of a cellular rubber block provided with longitudinal and transverse walls b, c, Fig. 3, the air in which is enclosed by a top layer a<1> and at the base by the article to which it is applied or by a second layer secured to the pad. The pad is shaped as shown in Fig. 1 to fit the crutch head, and side flanges a<3> are provided to secure it in position, the whole being covered with leather, &c.