baber/WOPTO huggingface dataset:
Patent GB-908338-A (GB)
Title: Improvements in or relating to the production of laminated safety glass
IPC: B32B17/08
Filed: 1960-09-22
Abstract: 908,338. Laminated safety glass. RHONEPOULENC S.A. Sept. 22, 1960 [Sept. 22, 1959; July 19, 1960], No. 32663/60. Class 140. Thin glass sheets (circ. 1.5 mm.) are laminated with interlayers of plasticized cellulose acetate or polyvinyl butyral or other acetal by clamping them between cover-plates, e.g. of thicker glass, or metal, with the aid of clips or other peripheral gripping means, and subjecting them to heating, first under atmospheric or subatmospheric gas pressure, applied directly to the assembly, and then under positive pressure, similarly applied, e.g. in an autoclave. The cover-plates are preferably polished and free from surface imperfections but alternatively interposed rubber or other elastomeric sheets may be used. The glass sheets may be polished or unpolished and, if the latter, may be polished externally after lamination. The inter-layer or -layers may be plain or coloured. The laminates may be used for making windscreens or for spectacle glass and may be plane or curved. The examples include one for making curved windscreens between 2 mm. aluminium plates accurately formed to the shape and size of the glass sheets used. Specification 755,809 is referred to.
Patent GB-1512990-A (GB)
Title: Active filters
IPC: H03H11/12
Filed: 1975-08-05
Abstract: 1512990 Active filters WESTERN ELECTRIC CO Inc 5 Aug 1975 [8 Aug 1974] 32703/75 Heading H3W An active filter having a fourth-order transfer function comprises: an active gain unit 35 and a first frequency selective circuit 30 arranged to provide a first second-order transfer function; and a second frequency selective circuit 10 coupled to the unit 35 and the circuit 30 to provide a second second order transfer function, the pole-zero pairs of the two circuits being widely spaced in the frequency spectrum. The two frequency selective circuits are RC networks, the elements of one being selected to compensate for loading effects of those of the other. The arrangement has a bandpass characteristic, the low frequency cut off being determined by one frequency selective circuit, and the high frequency cut off by the other.
Patent GB-668354-A (GB)
Title: Improvements in or relating to electrical cable connectors
IPC: H02G3/06
Filed: 1949-12-21
Abstract: 668,354. Mechanical couplings for cable coverings. BORG - WARNER CORPORATION. Dec. 21, 1949 [Dec. 22, 1948], No. 32712/49. Class 38 (i). A cable clamp comprises a tubular body 10 through which a cable 31 may be passed and which is provided with a surface 23 and an inwardly-extending movable finger 15 for gripping the cable therebetween, lugs 28 on the body limiting the reverse movement of the finger, thereby preventing the cable being pulled out. The body is split and formed of two parts 11, 12 of different diameters and the finger extends from the larger diameter part 12 and has a concave bend 18 between its parts 16, 17 so that its round end 22 makes an even contact over the cable covering by means of shallow teeth 24 thereon. Slots 26 are cut in the finger part 16 above its connection with the body part 12, and the surface 23 is extended to a tongue 27 which is bent to serve as a cable guide. The body part 12 has a flange 13 which locates the clamp in an opening 30 in a wall 29 while lugs 14 adjacent the flange serve to retain the clamp in position.
Patent GB-904823-A (GB)
Title: Improvements in or relating to a freight air cushioning system for freight carrying vehicles
IPC: B61D45/00
Filed: 1958-10-14
Abstract: 904,823. Loading railway wagons. DASEY, H. H. Oct. 14, 1958, No. 32729/58. Class 103(4). A railway freight car 1, Figs. 2 and 3, is provided with a plurality of inflatable air bags 13 and an air supply system 21, 22, 24, 25 and 15 including a compressed air storage tank 23. The bags extend transversely of the freight compartment and have eyelets 10, 11 engaging hooks 8, 9 on hangers 6, 7 movable along rails 4, 5 supported at 4a, 5a from the car roof. The air supply pipe 15 supported at 18 'from the roof has automatic safety valves 16 connected at 19 to flexible hoses connected to the bags 13, the latter being formed with cells 13a. The bags are inflated between articles of freight 14 as shown in Fig. 2, and the articles are thus resiliently packed between the car end walls and wire screens 28 supported from the rails 4, 5, and releasably fastened to car floor by pins 32 latched by latches 34 and releasable by springs 33. When the air supply at 21 is disconnected the bags can be inflated by the air in the tank 23, a suitable valve being provided in the pipe 22 and closable when the pipe 21 is disconnected. The expansion of the bags is controlled by a regulator valve 25. The valve 16 for each bag shuts off automatically in event of the pressure falling due to leakage or puncturing of the bag.
Patent GB-174795-A (GB)
Title: Improvements in or relating to brakes for electric tramcars and the like
IPC: B60L7/00
Filed: 1920-11-19
Abstract: 174,795. Spencer, C. J. Nov. 19, 1920. Electric braking.-When series traction motors are converted into generators for electric braking, the field windings are re-connected either to a separate source of current such as a battery, which may be kept charged by a motor-generator, or directly to the supply, and the armatures are connected in a separate and independent braking circuit. Fig. 1 shows one arrangement of the field and armature circuits when connected for braking. The field windings 2, of two motors are excited in parallel by a battery 5 through regulating-resistance 8, the battery charge being maintained by a motor-generator 6. The motor armatures 1 are connected in an independent circuit to electric brakes 7. In a modification, as shown in Fig. 2, the motor fields 2, 2 are connected between the trolley 3 and ground 4, and provision is made for changing to a selfexcited arrangement in case the supply fails. Controllers for effecting the requisite connections are adapted from ordinary series parallel controllers by suitable changes in the disposition of the contacts.
Patent GB-951297-A (GB)
Title: Printing ribbon mechanism
IPC: B41J31/14
Filed: 1962-08-27
Abstract: 951,297. Typewriters; ink-ribbon mechanisms. ADDMASTER CORPORATION. Aug. 27, 1962 [Sept. 25, 1961], No. 32804/62. Heading B6F. Ink-ribbon mechanism.-An ink-ribbonmechanism for an adding-listing machine, in which a short ink ribbon 185, Fig. 3, wound around an inking core 198, is cyclically operable to be moved out and into contact with the said core for effecting a printing impression between a printing medium and a plurality of type sectors 14, comprises an ink ribbon magazine 186, having secured therein by studs 197 the inking core and one end of the ink ribbon 185, the other end of which passes through a slot 204 over a guide roller 205, the type sectors 14 a guide roller 2091 carried by a slide 206 and is attached by an eyelet 207 to a hook 307. To effect impression the slide 206 is pulled to the right (Fig. 4, not shown) to present an inked portion of the ribbon 185 withdrawn from the magazine 186, at the printing station. After impression the ribbon is rewound on the inking core 186, by a tensioned spring 200, Fig. 6, and the slide retracted by a tensioned spring 208. The ink ribbon magazine comprises a shell 188, Fig. 5, containing a spool 194 rotatably supported on a tubular sleeve 190 integral with a flange wall 187, provided with a stud 193 to prevent the magazine from rotation when fitted over a stud 191. The wall 187 and spool 194 are provided with flanges 201, 209 respectively, to accommodate the spring 200, attached by studs 202, 203 of the wall and spool, respectively.
Patent GB-977832-A (GB)
Title: Machine for skinning bananas
Inventor: HALLIWELL JAMES ARTHUR
IPC: A23N7/00
Filed: 1962-08-27
Abstract: 977,832. Skinning bananas. VICKERS-ARMSTRONGS (ENGINEERS) Ltd. Aug. 26, 1963 [Aug. 27, 1962], No. 32889/62. Heading A4C. [Also in Division B8] In a machine for skinning bananas, the latter are fed in succession to a cutting station 36 at which they are cut transversely into halves which are then fed endwise with the cut ends trailing to a skinning station having two gripping elements, such as rollers 44, which grip the uncut ends and draw the skin but not the fruit through a gap between the elements. Bananas from a conveyer 1 are fed via an oscillating chute 3 along inclined plates 4 and 13 to be carried and washed in a water stream from nozzles 20 and a pipe 17 between two of a plurality of guide plates 13A and to be then carried on fingers 29 upstanding from a conveyer 23 having two open-mesh belts 25 along the upper run 23B on which they are dried by a blower 31. The bananas are transferred from the end of the conveyer 23 to a first feeding means comprising a plurality of side-byside lower conveyer belts 33 carrying banana engaging lugs 34 and a corresponding series of upper conveyer belts 35. The rollers 33A, 35A carrying the belts 33, 35 and mounted respectively on common shafts but each roller 33A, 35A is independently spring urged to cater for varying thickness of bananas carried between the belts 33, 35. Between each adjacent pair of belts 33, 35 is mounted a cutter blade 36 which cuts into halves bananas fed transversely thereto. The cut halves are re-orientated through 90 degrees by diverters 37 aligned with the cutters 36 and transferred in channels defined between the diverters 37 and guide plates 38 to a second feeding means comprising a conveyer 39 formed of a plurality of spaced belts connected by groups of cross wires 43. Banana halves carried on the conveyer 39 have their skins cut longitudinally on opposite sides by knives located within the guide channels. Each banana half after being cut longitudinally is fed by the conveyer 39 to have its uncut end gripped between and drawn by one of a plurality of pairs of contra-rotating rollers 44 whereby the skin passes between the rollers 44 to be discharged on to a conveyer 45 and the fruit is squeezed out of the skin to pass through a gap between groups of wires 43 and on to a conveyer 46. Bananas inadvertently adhered to the conveyer 39 are removed from the lower arm by a stripper 47 and the lower run is cleaned by a brush 48. In an alternative arrangement the washing part of the apparatus is omitted and bananas are fed from a hopper to a separating device which delivers the bananas in spaced rows to the lower conveyer belts 33.
Patent GB-845555-A (GB)
Title: Steroid compounds
IPC: C07J75/00
Filed: 1956-10-29
Abstract: The invention comprises 2,2-dihalo-3,20-diketo-11b , 17a -dihydroxy-21-acyloxy-allo-pregnaner, and a process that comprises reacting 3,20-diketo - 11b , 17a  - dihydroxy - 21 - acyloxyallopregnane with a halogenating agent of the positive halogen type to produce a 2,2-dihalo-3,20 - diketo - 11b , 17a  - dihydroxy - 21-acyloxyallopregnane.  The invention also includes the further step of allowing the 2,2-dihalo compound to stand at room temperature to form 2,4-dihalo - 3,20 - diketo-11b , 17a -dihydroxy-21-acyloxy-allopregnane, and optionally reacting the last mentioned compound with a dehydrohalogenating agent to produce D 1,4-3,20-diketo-11b , 17a  - dihydroxy - 21 - acyloxy - pregnadiene. The expression "halogenating agent of the positive halogen type" means a halogenating agent that releases halogen in its free form rather than a negative halogen ion1 1 such as bromine or chlorine. About 2 moles of halogenating agent per mole of allopregnane starting compound may be used.  The examples exemplify the preparation of 2,2-dibromo- and 2,4-dibromocompounds and the dehydrohalogenation of the latter compound to form a 1,4-pregnadiene.  The corresponding chloro compounds are also referred to.  Reference has been directed by the Comptroller to Specification 806,162.
Patent GB-822709-A (GB)
Title: Improvements in or relating to processes for the production of fluorescent coating compositions
Inventor: TOZER EDWIN JOHN
IPC: C09D7/80
Filed: 1955-11-17
Abstract: A process of forming a fluorescent coating composition comprises forming an emulsion or suspension polymerization product of vinyl chloride, dyeing the product without intermediate drying thereof with a solution of a fluorescent dye, and thereafter dispersing the resultant dyed particulate resin in a liquid vehicle.  The vinyl chloride may be co-polymerized with vinylidene chloride, vinyl acetate, vinyl alcohol or acrylonitrile.  Suitable dyes are 3 : 6 - bis - diethyl (or ethyl) - 9 - (21 - carboxy phenyl)-xanthenyl chloride; 4-amino-1 : 8-naphthalic acid-41-(11-methyl anilide); Auramine G; or the chloromethyl derivative of dimethyl dihydrothio p-toluidine.  Suitable vehicles are poly-alkyl methacrylates, chlorinated or cyclized rubber, alkyd resins, polystyrene, rosin, and mixtures with vegetable oils; also suitable are aqueous solutions of colloids such as gelatin, starch, alginates, methyl or carboxymethyl cellulose, and of film-forming materials such as vinyl or acrylic resins.  Non-fluorescent extenders such as white titanium dioxide or colourless silica or calcium carbonate, may be added.  The dyed resin may contain 0.5-5% dyestuff (0.5-1.5% in the case of magenta) and 1-2 parts of the resin may be mixed with one part of vehicle.  Examples are given of (a) a matt ink for silk-screen processes with an alkyd resin vehicle and 0.1-1% lead or calcium naphthenate as drier, (b) a coating composition with methyl butyl methacrylate copolymer as vehicle, (c) an aqueous coating composition with polyvinyl acetate vehicle, (d) an ink for aniline printing processes with a solution of 4 - amino - 1 : 8 - naphthalic acid - 41 - phenylanilide sodium sulphonate in ethyl cellulose as vehicle.  Specifications 712,219, 721,827, 769,691 and 770,889 are referred to.
Patent GB-828184-A (GB)
Title: Lift truck
IPC: B66F9/08
Filed: 1957-10-23
Abstract: 828,184. Lift trucks. CLARK EQUIPMENT CO. Oct. 23, 1957 [Dec. 24, 1956], No. 33076/57. Class 78 (3). In a fork lift truck the mast, lifting rams and fork are spaced longitudinally of the truck with the mast and fork on opposite sides of the front wheels, thereby reducing the weight of the counterweight and/or the length of the truck. The mast comprises a pair of I-section uprights 90 provided with channel-section guides 92 and the carriage is guided on the uprights by sets of rollers 152, 154, 156, 166, 168, 170, 176 and 178. The carriage comprises a pair of frames 50 rigidly connected by tubes 64, 144 and other cross bracing tube (not shown in Fig. 2). The fork tines 18 are supported through rollers 118, 120 on a member 32 which is pivoted to frames 50 at 110, and through rollers 108 on an I-section member 30 which interconnects the free ends of a pair of arms 134. A pair of hydraulic jacks 60 pivot a pair of arms 142 about tube 64 thereby adjusting the angle of inclination of the tines by means of arms 134. The tines are moved laterally relative to one another, and together as a unit, by a pair of hydraulic jacks 34, 36. Tube 144 is connected to a pair of lifting chains 48 which are anchored to the cylinders of a pair of laterally-spaced stationary main lifting rams 40 and pass over a pair of pulleys 44 mounted for free rotation on a transverse shaft 204. Bifurcated pulley brackets 198 are pivoted to the ram piston-rods on pins 202, a transversely extending member 206 (Fig. 3, not shown) maintain a fixed spacing between the two lifting rams and a torque tube 204 (Fig. 3) connects the pulleys 44 and ensures synchronous vertical movement of the ram pistons.
Patent GB-929340-A (GB)
Title: Process and apparatus for purifying solvents, more especially for the dry cleaning industry
IPC: D06F43/08
Filed: 1959-09-29
Abstract: <PICT:0929340/III/1> Solvents such as dry cleaning solvents are purified by maintaining a body of the impure solvent in a substantially quiescent state, and feeding the impure solvent in a form having a large surface area from a zone at or near the surface of the said body into an atmosphere swept by an inert gas and cooling the gas and solvent vapour mixture thus formed to recover the solvent in liquid phase. Specified solvents are trichloroethylene, perchloroethylene, carbon tetrachloride, o-dichlorobenzene, benzene, toluene, m-xylene, solvent naphtha, light petroleum, and white spirit, the solvent may contain a waterproofing silicone.  Preferably the solvent is heated to a temperature which measured in degrees centigrade lies from 20 to 50% below the theoretical boiling point of the solvent.  Impure solvent is led from a container 4, via an automatically controlled valve 7 and a heat exchanger 31, into a casing 6 which contains a solvent body 13.  Rotating discs 12 take up films of solvent from the body 13.  A hot inert gas is supplied via pipe 14 and passes into the casing through a hollow shaft 8. The gas and entrained vapour is discharged through a pipe 15 and enters a condenser 17 in which the purified solvent is condensed and passes to a container 24 and the gas passes through a pipe 20 and gas heater 21 to pipe 14.
Patent GB-1311593-A (GB)
Title: Xy-ray diagnostic apparatus
IPC: G03B42/02
Filed: 1971-07-14
Abstract: 1311593 Control of DC motors COMPAGNIE GENERALE DE RADIOLOGIE 14 July 1971 [31 July 1970] 33098/71 Heading H2J [Also in Division H5] A motor 38 controlling the movement of a carriage in X-ray apparatus (see Division H5) also drives the spindle of a potentiometer 45, whereby a voltage dependent on the carriage position is fed to one input 75 of a differential amplifier in the motor control circuit, to the other input 73 of which is applied a potential corresponding to the desired carriage position. To reduce hunting, the output from the tachogenerator 43 is fed back, with reversed polarity, to amplifier 77.
Patent GB-906475-A (GB)
Title: Polyester coated sheet materials
IPC: B05D7/00
Filed: 1960-09-28
Abstract: 906,475. Coated fabrics; laminates. HOUILLERES DU BASSIN DU NORD ET DU PASDE-CALAIS. Sept. 28, 1960 [Sept. 29, 1959; Nov. 7, 1959], No. 33220/60. Class 140. A process for the production of a sheet material comprises coating a woven or non- woven fibrous web with an unsaturated crosslinkable polyester resin in the form of a stable, partially cross-linked gel and dusting at least one face of the coated web with a finely-divided solid powder. The web may include at least one layer formed of a plurality of parallel continuous glass filaments. The polyester gel may include one or more fillers and/or fibres. The finely-divided solid powder may be an inert mineral or organic material, thermosetting resin or a thermoplastic resin fusible under the conditions required to complete polymerization of the polyester gel. The dusting may be carried out in more than one stage and may be calendered at least once between the stages. The dusted web may be air dried at, for example, a temperature of from 15  to 70  C. Between 2 and 30%, based on the weight of polyester gel, of the finely-divided solid powder, which may be capable of passing through a No. 40 sieve (A.S.T.M.E. Standard), may be used. Articles may be moulded from the sheet and several superimposed sheets may be laminated under heat and pressure.
Patent GB-1509586-A (GB)
Title: Process for the separation of 1,3-butadiene by selective adsorption on a zeolite adsorbent
IPC: C07C67/00
Filed: 1975-08-11
Abstract: 1509586 Selective adsorption of 1,3-butadiene UOP Inc 11 Aug 1975 [12 Aug 1974] 33333/75 Heading C5E 1,3-Butadiene is separated from a feed stream containing at least one C 4  unsaturate by selective adsorption on a type X or Y zeolite containing at least one cation selected from Li, Na, K, Rb, Cs and/or Ba. Subsequently the butadiene-containing adsorbent is treated with a desorbent such as benzene, toluene or linear monoolefin of substantially different boiling point from butadiene. Preferred adsorption and desorption conditions are 21-232‹C. and a pressure of 1-35 atmospheres to maintain the liquid phase. The zeolite is preferably exchanged to eliminate all the acid sites.
Patent GB-1399138-A (GB)
Title: Blanking circuits for television receivers
IPC: H04N3/24
Filed: 1972-07-17
Abstract: 1399138 Television RCA CORPORATION 17 July 1972 [22 July 1971] 33363/72 Heading H4F Blanking of the tube 60 of a television receiver during the vertical retrace interval is accomplished using a transistor 45 and resistor 46 connected to the cathode of a valve 22 included in the circuit for producing the vertical sawtooth deflection voltage. During scanning, valve 22 is cut off and valve 23 cut on, capacitor 21 being charged via resistors 38, 39, and being connected to the grid of valve 23 to produce a corresponding waveform, of opposite polarity, in the anode circuit, which is coupled to tube 60 via transformer 28, 29. At the end of each vertical scan a negative sync. pulse from separator 15 appears at the anode of valve 22, cutting valve 23 off, and, consequently valve 22 on, to discharge capacitor 21 via valve 22 and resistor 46. The resulting voltage across resistor 46 causes transistor 45 to become saturated, thus effectively earthing its collector, which causes pentode 50 to cut off, the resulting positive voltage at the pentode anode blanking the tube 60. The amplitude of the sawtooth is controlled by potentiometer 27. Brightness control is provided by potentiometer 51. Video amplifier 12 may be in the luminance channel of a colour television receiver, 48 being a compensating delay.
Patent GB-1006574-A (GB)
Title: Improvements in and relating to wall safes
Inventor: CAPSTICK JAMES EDWARD
IPC: E05G1/00
Filed: 1962-08-30
Abstract: 1,006,574. Safes; hinges. STRATFORD EQUIPMENT CO. Ltd. Aug. 30, 1962, No. 33367/62. Headings E1A and E2F. In a wall safe the door 8 is mounted on a hinge 11 disposed internally of the safe body behind a front wall portion 9 thereof. The back of the safe is provided with rotatably adjustable eccentrics 24 which together with rectangular side projections 26 serve as keying or positioning lugs. The hinge consists of a channel member 11 opposed ends of which are bored at 13 to receive hinge pins in the form of screws which are screwed into reinforcing blocks riveted to the inner surfaces of the top and bottom walls of the safe, see Fig. 2 (not shown).
Patent GB-1089184-A (GB)
Title: Containers for liquified or compressed gases
Inventor: HOLMES RICHARD MARTIN
IPC: A62C13/00
Filed: 1964-08-17
Abstract: 1,089,184. Carbon dioxide fire extinguishers. REYNOLDS TUBE CO. Ltd. Aug. 3, 1965 [Aug. 17, 1964], No. 33457/64. Heading A5A. [Also in Division F4] The discharge valve of a compressed cr liquefied gas container 10 (particularly a carbon dioxide fire extinguisher) is mounted in a plug 12 inserted in the container mouth 11 which is integral with the body and which has an internal annular groove near its outer end in which are seated three separate plug-retaining members 32, 33, and (34). When operating lever 29 is depressed to remove the closure member 16 from its seat 19 fluid flows through outlet passage 24 in transverse rod 23 and is discharged from a nozzle attached thereto. Plug 12 may also house a bursting disc 36 of which one side communicates with the container interior and the other with outlet 24 via bore 37.