baber/WOPTO huggingface dataset:
Patent GB-900147-A (GB)
Title: Improvements relating to electrical connectors
Inventor: GOUGH ERNEST
IPC: H01R13/415
Filed: 1959-05-19
Abstract: 900,147. Two-part couplings. WALSALL CONDUITS Ltd. May 19, 1960 [May 19, 1959], No. 16858/59. Class 38 (1). An electrical connector has a terminal block 13 mounted in a block of insulating material 10, the terminal block being fixed to one end of a metal strap 17, the other end of which is anchored at 18 to a current-carrying part of the connector which is fixed relative to the body, the intermediate portion of the strap having a channel section which engages over a rib 20 on the body or in a recess in the body to prevent movement of the block relative to the body.
Patent GB-473159-A (GB)
Title: Improvements in articles of apparel and method of making same
IPC: A41B3/10
Filed: 1936-04-15
Abstract: A blend of polyvinyl resins of the type described in the parent Specification comprises a polymerized alkyl a -alkylacrylate and at least one resin which is a polymerized alkyl acrylate or a polyvinyl resin.  Methyl and ethyl methacrylates and ethyl ethacrylate are suitable a -alkylacrylates, and the other resin or resins may be polymerized methyl, ethyl, propyl, or butyl acrylate, polymerized vinyl esters of the lower aliphatic acids, e.g. the acetate, propionate, or butyrate, a polymerization product of vinyl chloride mixed with such vinyl esters, or polystyrol.  Blends of polymerized methyl methacrylate with polymerized methyl acrylate, with polyvinyl acetate, with an interpolymer of vinyl acetate and vinyl chloride, with polystyrol, and with both polystyrol and the interpolymer, are described.  A plasticizer or pigment may be added, or a solvent such as acetone to which toluol may be added.  The Provisional Specification describes blends comprising a polyacrylate and a polyvinyl halide, a polyvinyl ester of a lower aliphatic acid, and/or polystyrol.
Patent GB-421180-A (GB)
Title: Improvements in hydraulic shock absorbers
IPC: F16F9/14
Filed: 1933-06-14
Abstract: 421,180. Thermally-actuated valves. ETABLISSEMENTS M. HOUDAILLE, 50, Rue Raspail, Levallois-Perret, Seine, France. June 14, 1933, No. 16982. Convention date, June 16,1932. [Class 135] [See also Group XXXII] A rotary-vane hydraulic shock-absorber includes a thermostatic coil 52 acting on a rotary regulating valve 40 arranged in the interior of the hollow shaft 20 supporting the vanes, the valve being connected to a manually-adjustable plug 45 both by the coil and by a rigid rod 46 connected at its ends to the valve and plug by ball-and-socket joints, the rod permitting rotary movement but preventing axial movement of the valve. The shaft 20 is connected through an arm 24 for example to an axle of a vehicle while the base of the shock-absorber is connected to the vehicle chassis. The coil comprises two welded-together bands of metal of different coefficients of expansion and functions also as a return spring for the valve 40 when excessive impact of liquid on the shaped surface of the valve tends to close it. At its outer end the coil is clamped between folds of a ferrule 53 which seats on the neck 49 of the plug 45 and is secured thereto, for example, by a pin 54. At its inner end a similar ferrule 55 receives the coil and is secured to the valve 40 by a pin 56.
Patent GB-745557-A (GB)
Title: Hydrogenation process for the production of polyhydric alcohols
Filed: 1953-06-19
Abstract: Polyhydric alcohols are produced from a mixture of carbohydrates resulting from the condensation of aqueous formaldehyde in the presence of a polyvalent metal catalyst, by a process comprising removing the polyvalent metal from the carbohydrate mixture, reducing the concentration of formaldehyde in the carbohydrate mixture to not more than 0.5 per cent by weight by distillation under acid conditions, and thereafter hydrogenating the carbohydrate mixture at a pH of 5 to 7 and under a hydrogenation pressure between 500 and 2,000 pounds p.s.i.g. in the presence of a hydrogenation catalyst. Preferably the polyvalent metal is removed by passing the carbohydrate mixture over an acidic cation-exchange resin, e.g. a phenol sulphonic acid-formaldehyde resin, or a sulphonated styrene-divinylbenzene copolymer, whereby the pH is decreased to between 2 and 3.5. Alternatively a precipitation method may be used; e.g. lead may be removed by adding oxalic or sulphuric acid, sodium oxalate or sodium sulphate.  The formaldehyde may be removed by distillation at a pH of 3 to 5, a temperature of 102 DEG  to 105 DEG C. and, if desired, under pressure.  The pH of the mixture is then raised to a value in the range 5-7 either by treatment with an alkaline anion-exchange resin, such as phenylene-diamine-formaldehyde resin, triethylene tetramine-phenol-formaldehyde resin or the reaction product of an amine and a chloromethylated styrene-divinyl benzene copolymer, or by treatment with an alkaline alkali metal compound, such as sodium hydroxide or carbonate, or an organic base such as triethylamine.  Suitable hydrogenation catalysts are Raney nickel or Raney cobalt. Preferably the carbohydrate content of the mixture to be hydrogenated should be less than 20 per cent and the temperature during hydrogenation should be not more than 150 DEG  C. The products may be separated by distillation under reduced pressure. Water is removed at 100 mm. Hg, ethylene glycol at 1 mm. Hg, glycerol at 20-100 microns, and erythritol at 50-100 microns but at a higher temperature.  The carbohydrate starting material comprising hydroxyaldehydes and hydroxy-ketones, is produced by condensation of formaldehyde in the presence of catalysts such as lead formate, lead nitrate, basic lead acetate, tin formate, tin chloride, cerium chloride or thorium chloride.  A suitable process is described in Specification 740,398.  A detailed example describes the condensation of aqueous formaldehyde in the presence of basic lead acetate to form a carbohydrate mixture which is subsequently treated with a cation-exchange resin to remove the catalyst, distilled to remove formaldehyde, treated with sodium hydroxide, and hydrogenated using a Raney nickel catalyst.  Further examples illustrate the effect of varying amounts of formaldehyde present at the hydrogenation step.
Patent GB-776412-A (GB)
Title: Improvements in or relating to the accurate grinding of wall tiles
IPC: B24B9/06
Filed: 1955-06-14
Abstract: 776.412. Grinding wall tiles. MARIENBERGER MOSAIKPLATTENFABRIK AKT.-GES. June 14, 1955 [July 20. 1954], No. 17106/55. Addition to 749,899. Class 60 Wall tiles set up on edge one behind the other to form a stack are ground in a position such that one diagonal of the tiles is substantially vertical. Two parallel rails k are secured on a supporting base i. A number of interconnected sliding conveyers m having skids m<SP>1</SP> engaging the rails together form an end less conveyer which is set in motion by any desired drive; each conveyer m carries a stock of tiles d held together by pressuredevices in an attachment n having a V- shaped opening o. The edges of the tilesare ground by grinding rollers g. In a,modification, Fig. 2, four blocks p and distance pieces x are so connected with the supporting base i so to form an angular guide for carriages m<SP>2</SP> each receiving a stack of tiles d<SP>1</SP>. The sliding carriages m<SP>2</SP> are inserted into the angular guide by guiding devices the tiles d<SP>1</SP> are kept together between the end faces of the sliding carriages m<SP>2</SP> so that they cannot be displaced during the grinding operation; the pressure device consists of a set screw r which acts of the stack of tiles d<SP>1</SP> through a pressure plate s supported on guide pins t in the front wall of the carriage m<SP>2</SP>. A bolt v displaceably mounted on the other front n of the carriage m<SP>2</SP> can be depressed to engage a conveyer chain w.
Patent GB-1497973-A (GB)
Title: Reclining elevator chair
IPC: A47C1/034
Filed: 1976-04-28
Abstract: 1497973 Reclining chairs E J GAFFNEY 28 April 1976 [30 April 1975] 17162/76 Heading A4J In a reclining chair having back and seat portions 12, 14 moveably mounted on a frame 10 and a power operated ram 74 for reclining the back and seat portions, the ram is also operable to cause the seat to be lifted and tilted forwardly to help a seated person to stand. The ram 74 has one end pivotally connected to the chair frame at 64 and the other end pivotally connected to a crank 54 pivotally mounted on the seat portion and connected to the back portion and a leg rest 16 to effect reclining movement of the back, seat and leg rest as the ram is retracted from the position shown in Fig. 2. The crank comprises a pair of arms inter-connected by a bar 60 which abuts a crossmember 46 on the seat to cause lifting of the seat as the ram is extended from the position shown in Fig. 2. The seat is guided during lifting by a pair of links 26, 28 pivotally connected between the seat and the chair frame. Before the ram reaches its fully extended position the pivotal connection of the crank with the seat comes into alignment with the axis of the ram such that further extension of the ram causes recline of the backrest. Alternatively recline of the backrest may be effected before the pivot and axis align by the abutment of head (104) Fig. 12 (not shown) of a screw threaded rod (103) engaged in a bracket (102) on the bar 60 with the ram 74 to prevent relative movement of the crank and the ram. The ram may be driven by an electric motor or may be hydraulic or pneumatic.
Patent GB-1217864-A (GB)
Title: Improvements in or relating to telecommunications systems
IPC: H04L5/06
Filed: 1968-04-10
Abstract: 1,217,864. Multiplex data transmission. SIEMENS A.G. 10 April, 1968 [18 April, 1967], No. 17164/68. Heading H4R. A multiplex data transmission system conveys a number of data channels in a frequency band, e.g. 60 to 108 kHz, which would otherwise be used for a number of telephone channels and their respective signalling channels. Alternatively some of the telephone channels may be transmitted together with a data transmission which replaces the remaining channels. Fig. 2 shows a system in which data input signals are modulated in two stages of modulation so that the twelve input data channels occupy a band of 60 to 108 kHz. Any one data channel may be replaced by a conventional multiplex telegraph channel WT. In Fig. 3 (not shown) a number of telephone channels in a multiplex system may be replaced by one or more data channels.
Patent GB-1142783-A (GB)
Title: Improvements relating to protective arrangements including electric level-responsive circuits
Inventor: PATRICKSON JOHN BRIAN
IPC: H02H1/00
Filed: 1965-04-23
Abstract: 1,142,783. Protective arrangements. A. REYROLLE & CO. Ltd. 22 April, 1966 [23 April, 1965], No. 17291/65. Heading H2K. A protective arrangement includes a switching circuit which operates at a predetermined instantaneous value of a rectified or unrectified alternating input signal and resets at a substantially lower value, this circuit supplying pulses to an accumulating circuit which has a reset time exceeding its response time so that it may respond to one pulse or to a series of pulses. The arrangement may be used for undervoltage protection or as shown for overcurrent protection. In this arrangement, the switching circuit comprises a current transformer 10 and a transistor trigger circuit having a transistor 20 with its base-emitter circuit connected across a bridge circuit formed by resistors 15, 16, 18 and a Zener diode 17. When this diode conducts the bridge is sufficiently unbalanced to cause the transistor 20 to conduct which renders a transistor 22 conducting. A further transistor 25 ceases to conduct and so removes a short circuit from the accumulating circuit formed by a relay coil 30 of appreciable inductance and a shunt diode 32. The resetting of the switching circuit occurs at a lower value as, when the transistor 25 is cut out, the voltage across the current-fed bridge circuit rises. In Fig. 3 (not shown) further transistors provide a feed-back and cause the resetting of the switching circuit at a lower value and the accumulating circuit includes a capacitor which is charged by the pulses. In another arrangement, Fig. 2 (not shown), both the switching and accumulating circuits include reed relays.
Patent GB-1193818-A (GB)
Title: Push-Pull Dispensing Cap
Inventor: STULL MORTON BARITZ
IPC: B65D47/24
Filed: 1969-04-02
Abstract: 1,193,818. Dispensing closure. M. B. STULL. 2 April, 1969, No. 17368/69. Heading B8T. A dispensing closure comprises a spout member 10, which has an opening 16 and a set of projections 28, and a cap 20, having a plurality of passages 26 and a depending peg 24. The cap 10 is movable from a raised, dispensing position to a lower position, whereupon depending peg 24 enters the opening 16 and the projections 28 loosely engage passages 26, thereby dislodging any hardened material from the passageways and sealing the device.
Patent GB-1214243-A (GB)
Title: Improved chuck
IPC: B23Q3/12
Filed: 1969-04-02
Abstract: 1,214,243. Chucks. ERICKSON TOOL CO. 2 April, 1969 [26 Nov., 1968], No. 17381/69. Heading B3B. A chuck for holding a tool holding member 6 having a flange 8 with driving slots therein, comprises a holder 2 having a tapered bore 3 for receiving a tapered shank of tool holding member 6, and a pair of keys 4 for engaging in the driving slots of the flange 8. A nut assembly 1 screws on to the holder 2 for clamping and ejecting the member 6. The assembly comprises a nut 10 and a ring 12 which is frictionally retained within the nut so that initial rotation of the nut rotates the ring also until one of a pair of inner lugs 19 on the ring 12 engages one of the keys 4. The ring 12 also has outer lugs 20 which clamp the flange 8 when the nut 10 is fully tightened by only a part-turn. When the nut 10 is rotated to its release position the ring 12 is moved outwards so that the lugs 19 eject the member 6. When the nut 10 is in its release position the lugs 20 are aligned with the keys 4 to enable the member 6 and its flange 8 to enter the holder 2. Rotation of the nut 10 initially rotates the ring 12 to move the lugs 20 to overlie the flange 8 to clamp it. The periphery of the nut 10 has a number of holes 16 in which a stop screw (18), (Fig. 2, not shown), is screwed for engagement with the ring 12. By adjusting the circumferential position of the stop screw 18 the clamping and releasing limits of the chuck are varied. One of the holes 16 may include a bright or coloured head screw for indicating the orientation of the keys 4 to facilitate fitting the member 6 into the chuck. The tool holding member 6 may itself include a collet chuck for holding a tool (T), (Fig. 1, not shown).
Patent GB-969081-A (GB)
Title: Tension control wrench
IPC: B25B23/145
Filed: 1962-05-07
Abstract: 969,081. Friction clutches. GARDNERDENVER CO. May 7, 1962 [June 20, 1961], No. 17437/62. Heading F2C. [Also in Division B3] A clutch mechanism incorporated in an air operated impact wrench comprises a hollow cylindrical body 41 and a driving member 51 with a bore 55 bevelled to co-operate with a cone portion 59. A piston 57 splined to the drive shaft of the rotor 29 and the driving member 51 transmits the drive to the clutch body via member 51 and drive pins 53. The cone portion is secured to the anvil shaft 22 of the wrench and engages the bevelled portion of the driver 51 under the action of disc springs 67. Another piston 71 located in bore 43 of the body 41 co-operates with the hammer pin 75 of the wrench and is axially movable therewith normally biased rearwardly by springs 77 in the clutch body. Air under pressure is independently supplied to the rotor 29 and to the clutch assembly to cause axial movement of the piston 57 for disengaging the cone portion and for axially moving the piston 71 to engage and disengage the hammer pin with the anvil to cause a succession of impact blows. The air supply to the impact and cone portions of the clutch is controlled by a clutch control valve 137. The cone clutch provides a safety device whereby relative rotation between the hammer pin and the anvil cannot occur until air pressure has sufficiently built up to move the piston 71 and fully extend the hammer pin of the wrench and thus minimize the possibility of damage to the impacting surfaces.
Patent GB-435426-A (GB)
Title: Improvements relating to electrically operated devices for controlling or regulating the level of liquid or other flowing materials
IPC: G05D9/12
Filed: 1934-06-13
Abstract: 435,426. Regulating liquid levels. EVERSHED & VIGNOLES, Ltd., and NEEDHAM, J. C., Acton Lane Works, Chiswick, London. June 13, 1934, Nos. 17518/34 and 11783/35. [Class 123 (i)] Means for controlling the level of conducting liquid or flowing mater ial in a container com prises two pairs of electrodes a, b and a, c arranged in the neigh bourhood of the highest and lowest levels re spectively the conduct ing paths in each pair being in parallel witl each other and botl paths being in series with the actuating winding of a switch n controlling the stopping and starting of a pump or other device. One electrode such as a may be common to both pairs and may be the wall of a tank, if this be conducting. The electrode assembly may consist of stainless steel electrodes b, c connected by a stainless steel rod insulated throughout its length. The common electrode may be an enclosing tube suitably spaced and insulated from the remaining electrodes. According to the first Provisional Specification each pair of electrodes may consist of a copper tube concentric with an internal copper element. Alternating current is preferably applied to the circuit operating the switch n which comprises a counterweighted lever operable only when both pairs of electrodes are immersed and released only when both are uncovered. If the pump is to fill the tank the starting circuit for the pump is connected to the back contact p, as shown, but if it is to empty the tank, to the contact w. Specification 410,278 is referred to.
Patent GB-255119-A (GB)
Title: Improvements in and relating to absorption refrigerating apparatus
IPC: F25B15/10
Filed: 1926-07-13
Abstract: 255,119. Electrolux, Ltd., (Assignees of Platen-Munters Refrigerating System Aktiebolag). July 13, 1925, [Convention date]. Refrigerating, absorption machines for. - In continuous cycle systems wherein an auxiliary neutral gas such as hydrogen is present in the evaporator d and absorber f, to equalize the pressure throughout the system, the pipe e conveying neutral gas back to the evaporator is cooled bv an external medium in order to condense and return any vapour of the absorption liquid entrained by the neutral gas. In the arrangement shown in Fig. 1, the water jacket m of the absorber is connected with a cooling- jacket n around the pipe e, which slopes towards the absorber so as to drain back condensed solvent. The jacket n is further connected with the usual jacket of the condenser c. The pipe e may instead be provided with gills for cooling by the atmosphere. The condensed solvent may be led through a by-pass to the generator, instead of the absorber. The Specification, as open to inspection under Sect. 91 (3) (a) comprises also the following:- Similar cooling means may be employed in the connecting conduit b between the generator a and the condenser for eliminating vapour of the solvent from the refrigerant. vapour. The pipe e may extend into the evaporator, its end being directed upwards and if desired formed into a coil so as to be subjected to the cooling action of the evaporator. Where cooling gills are applied to the gas expulsion pipe b of the generator, they serve to prevent undue rise of pressure should the cooling-water supply to the absorber and condenser be cut-off and the heating- means remain in action. The gills may be applied to the part of the pipe b inclining to the condenser. This subject-matter does not appear in the Specification as accepted.
Patent GB-441268-A (GB)
Title: Improvements in or relating to electric batteries
IPC: H01M6/06
Filed: 1934-06-13
Abstract: 441,268. Batteries. REYNOLDS, J. W. H., 254B, Kew Road, Richmond, Surrey, and STERLING BATTERIES, Ltd., Dagenham, Essex. June 13, 1934, No. 17546. [Class 53] A cell comprises a zinc container of square, rectangular or other flat sided shape enclosing an unwrapped dolly of corresponding shape which is spaced from the container for example by rubber bands or spacers of cardboard or other material. The depolarizer may consist of a mixture of manganese dioxide, zinc chloride and a saturated solution of ammonium chloride to which a binder such as gum may be added.
Patent GB-973386-A (GB)
Title: Fluid resistor
IPC: G05D7/01
Filed: 1963-05-03
Abstract: 973,386. Regulating fluid flow. LEE CO. May 3, 1963 [June 7, 1962], No. 17574/63. Heading G3H. A predetermined fluid resistance is provided by a removable fluid resistor plug 10 containing a pre-calibrated restrictor orifice 28. The plug 10 has a plurality of exterior circumferential grooves in the area 66 and is secured against a shoulder 58, within enlarged portion 56 of a bore 54, by inser tion of a hollow expander pin 14 having a tapered exterior surface 50 which engages the tapered area 37 to expand the cylindrical body 12 into fluid tight engagement with the bore 56 in the area 66. The plug 10 has stainless steel filters 40 and 44. The expander pin 14 and plug 10 are extracted upon threads 48 and 36 respectively. Orifice 28 lead-in passages 30 and 31 have included angles of 67 degrees to maintain a constant orifice length to diameter ratio. Specification 823,196 is referred to.
Patent GB-1502412-A (GB)
Title: Navigation system for a rotary winged aircraft
IPC: G01S3/52
Filed: 1975-04-28
Abstract: 1502412 Doppler direction finder OFFICE NATIONAL D'ETUDES ET DE RECHERCHES AEROSPATIALES 28 April 1975 [26 April 1974] 17574/75 Heading H4D In a helicopter borne Doppler direction finder, the receiving antenna 11 1 , 11 2 , Fig. 1, are mounted near the ends of each rotor vane P 1 , P 2 , the two resulting phase modulated signals are then combined and processed in the helicopter by correlating the phase modulation with a function corresponding to said modulation. The rotor vanes P 1 P 2 , carry preamplifiers 33, 34, Fig. 3, local oscillators 35, 36, mixers 37, 38, filters 39, 41, amplifier 45, multiplier/mixer diode 47 and filter 49 from which the combination signal of the two original signals at frequency (W, - W 2 ) is produced for feeding to the helicopter interior by slip ring contact 52, 53 on the rotor shaft. A reference, non-phase modulated signal at (W, - W 2 ) is produced from rotor carried mixer 57 and fed to the helicopter interior by slip ring contact 62, 63. The combination signal and reference signal are mixed in multiplier 65 and a filter 67 selects an output having zero carrier frequency but still bearing the original phase modulation. A gain control circuit 74 ensures that the output signal never goes negative whereby it can be fed to a photoluminescent diode 78. The diode is viewed by an integrating vidicon 87 via a filter 82 rotating with the rotor and having an intensity variation along the direction X of the vanes spatially corresponding to the phase modulation. The arrangement is such that although the diode illuminates all the filter there will be a buildup of light by the vidicon 87 only at a position indicating the direction of the received radiation, the radiation source being schematically represented on CRT 88. A plurality of sources may be similarly dealt with and shown. A mathematical exposition is given.