baber/WOPTO huggingface dataset:
Patent GB-511524-A (GB)
Title: Improvements in or relating to concentric trunk communication cables
IPC: H01B11/18
Filed: 1938-02-18
Abstract: 511,524. Cables. SIEMENS & HALSKE AKT.-GES. Feb. 18, 1938, No. 5200. Convention date, Feb. 26, 1937. Addition to 490,243. [Class 36] A concentric conductor communication cable, more particularly of the air-space insulation type, has its inner conductor constituted by a single metal band bent into tubular form or by a plurality, preferably two but not more than four, of bands of arcuate cross-section assembled into tubular form, the band or bands being furnished with inwardly directed transverse grooves at widely spaced intervals and the edges of the band or bands, which extend longitudinally of the cable with a large, preferably infinitely large, length of lay, abutting so that the parts of the conductor between the grooves have a smooth surface. The space within the inner conductor may be wholly or partly filled by an insulating strand or cord, or by a bare or insulated wire. The abutting edges of the band or bands may be welded or soldered together continuously or at intervals, Fig. 1 shows a hollow conductor comprising grooved bands 10, 11 held together against lateral displacement by an insulating band winding 13, whilst in the construction shown in Fig. 2 the conductor is formed by a single band, the grooves 14 extending helically so as to prevent the abutting edges of the hand from sliding within one another. Fig. 3 shows a high frequency cable having an inner conductor formed by grooved bands 15, 16 bound together, with their grooves 17 relatively staggered, by a strong band 18 of low-loss insulating material, such as polystyrol. Helical spacing members 19 and a closed band winding 20 of insulating material separate the inner conductor from an outer conductor formed of inwardly grooved metal bands 21, 22, over which are applied a strong metal band winding 24, an insulating band winding 25 and a water-tight jacket 26. The cable may be combined with other coaxial cables and/or ordinary twisted pairs or quads.
Patent GB-398103-A (GB)
Title: Improvements in dismemberable mountings for field guns, antiaircraft guns and the like
IPC: F41A23/02
Filed: 1933-02-21
Abstract: 398,103. Dismemberable gun mountings. AKTIESELSKABET DANSK REKYLRIFFEL SYNDIKAT, Aarhusgade, Frihavnen, Copenhagen. Feb. 21, 1933, No. 5264. Convention date, Dec. 31,1932. [Class 92 (i).] Relates to mountings for field guns, anti-aircraft guns and the like of the kind comprising a circular bottom frame B resting on three legs A, a top frame C revolving on the bottom frame, and a third frame D supported on the top frame and carrying the cheeks for the gun cradle. According to the invention, the mounting is adapted to be readily separated, without the use of tools, into parts comprising the separate legs A, the bottom frame B, the top frame C, and the cheeks D. The adjustable spades 59 are carried by casings 60 which can be readily disconnected from the legs and attached to the fittings on the frame B left vacant when the legs are removed. The top frame C which revolves on a roller race on the bottom frame B, Fig. 5, is centred and held in place by eccentrically mounted guide rollers 37 which can be moved aside by rotation of handles 41 on spindles 39 to permit the frame C to be raised and removed from the frame B. The cheeks D are carried by a frame adapted to slide between blocks 48, see plan, Fig. 6, on the frame C and to be locked in position by bolts 52. To permit removal of the frame carrying the cheeks, the shaft h<2> connecting the elevating pinion on the. cheeks with the elevating hand-wheel H on the frame C is provided with a clutch h<1>. The training hand wheel G on the frame C operates a pinion engaging a rack g on the frame B. Fig. 3 shows in detail the means for attaching and locking a leg A to the frame B which comprise a jaw 25 engaging over a pin 21 and a cut-away rotary bolt 27 attached to a rocking member 28 which is held in locking position by a screw 30 but which can be swung down to release the bolt 27. The spade members are attached to this fitting on the frame B, as shown in Fig. 11, and as an alternative wheels 67 may be attached, as shown in Fig. 13, in place of two of the legs, the third leg forming a trail when the mounting takes the form of a field carriage.
Patent GB-856731-A (GB)
Title: Improvements in or relating to the manufacture of coating compositions for electrical conductors
Inventor: AITKEN ROXBURGH RICHMOND
IPC: C08G18/42
Filed: 1958-02-19
Abstract: Polyurethane wire enamels prepared by reacting hydroxyl group-containing polyesters with polyisocyanates are characterized in that the polyester is the product of reaction of (1) 9 molar proportions of terephthalic acid or isophthalic acid or mixtures thereof (2) from 4 to 8 molar proportions of ethylene glycol and (3) from 5 to 9 molar proportions of at least one saturated aliphatic polyhydric alcohol having at least three hydroxyl groups, and that the proportion of polyisocyanate used is from 70 to 120% and preferably from 80 to 105% by weight of that equivalent to the hydroxyl content of the polyester.  The polyisocyanate may be 2, 4- or 2, 6tolylene diisocyanate, diphenyl methane diisocyanate, 4; 41: 411-triphenylmethane triisocyanate, 3 : 31-dimethylphenylene- 4: 41diisocyanate, or the isocyanate derivatives described in Specifications 809,809 and 842,154.  In examples an enamel is made by dissolving (1) an isophtalic acid/trimethylolethane/glycol polyester; (2) a terephthalic acid/glycol/trimethylol propane polyester; and (in a comparison experiment) a phthalic acid/glycol/triemthylolpropane polyester in a cresol/butyl acetate/heavy naphtha mixture and adding a polyisocyanate adduct (from 2:4-tolylene diisocyanate, diethylene glycol, glycerol and phenol).  The mixture is used to coat a wire and curing is effect at 420 DEG C.  Specifications 775,081 and 775,082 also are referred to.
Patent GB-1492910-A (GB)
Title: Variable resistance device
IPC: H01C10/14
Filed: 1941-03-26
Abstract: 1492910 Variable resistors SPECTROL ELECTRONICS CORP 11 Feb 1976 [17 March 1975] 05409/76 Heading H1S In a variable resistor in which a toothed rotor 14 is rotated by a worm screw 16 and the rotation is limited by a projection 40 on the rotor engaging a 4 stop member 42 on housing 11, the rotor has a toothless sectionso that in each of its limit positions it is disengaged from screw 16 which is instead engaged by a leg 30, 32 forming part of a resilient ratchet member 12. Member 12 comprises a spring 26 positioned in a groove 38 in rotor 14, and when screw 16 is turned such as to try to rotate rotor 14 through a limit position, spring 26 permits deflection of part 28 of member 12 so that the respective leg 30, 32 snaps over thread 18. Upon subsequent turning of screw 16 in the opposite direction, part 28 engages a step (47, Fig. 3, not shown) formed in the adjacent surface of rotor 14 and engagement of thread 18 with rotor teeth 50 is re-established.
Patent GB-310600-A (GB)
Title: Improvements in or relating to power-driven platform and the like trolleys, trucks and similar vehicles
IPC: B62D61/08
Filed: 1928-02-21
Abstract: 310,600. Death, H. N., and Waite, W. V. Feb. 21, 1928. Motor wagons.-A motor platform truck comprises in combination a pair of spring-suspended rear driving wheels B, a single front steering wheel E mounted in a revoluble fork D controlled by a tiller arm G curved to clear the driver's body at full lock, an internal-combustion engine J mounted in front of the steering pillar F and driving the rear wheels through reducing gear L and friction-clutch reversing gear M, and control means N, P for the reversing clutches and brakes, the arrangement being such that the driver's seat H, the engine and the control means are all in advance of or level with the steering pillar so that substantially the whole of the wheel-base is available for loading space. The reversing gear may be that described in Specification 301,536, [Class 79 (ii), Motor vehicles, Driving &c.].
Patent GB-528170-A (GB)
Title: Improvements in or relating to valve mechanism for internal combustion engines
IPC: F01L1/12
Filed: 1939-01-21
Abstract: 528,170. Valve gear. HARPER, W. Jan. 21, 1939, No. 5468/40. Divided out of 524,092. [Class 7 (vi)] In a two-stroke engine having two exhaust valves E<3> opened in advance of three other exhaust valves F<4>, and an inlet valve D<5> admitting air from the crank case to a combustion chamber D<1>, all these valves are actuated by a face cam 35 rotated by gearing 31, 32. Cam projections 35EF actuate the two exhaust valves E<3> by means of a rocker 41E, and the three exhaust valves F<4> by rockers 41F, while projections 35D actuate the inlet valve D<5> by means of a rocker 41D. The valve-actuating shafts 30 of a multicylinder engine are coupled together between the cylinders. The engine is described in Specification 524,092.
Patent GB-1075299-A (GB)
Title: Adhesives
IPC: C09J123/12
Filed: 1966-02-08
Abstract: Hot melt adhesives comprise a major proportion by weight of atactic polypropylene having a Brookfield viscosity of 4200 to 5800 cp at 300 DEG  F. and a ring and ball melting point of 115 DEG  to 121 DEG  C., and a minor proportion by weight of at least one material selected from tall oil, terpene resins, polyethylene, isotactic polypropylene and hydrocarbon/aldehyde resins. Specified terpene resins are polymers of a - and b -pinene.  The hydrocarbon/aldehyde resins may be derived from refinery feedstocks containing 15 to 15% aromatic hydrocarbons and formaldehyde, formalin, paraldehyde, trioxane, acetaldehyde, propionaldehyde or butyraldehyde, in the presence of catalysts such as sulphuric, hydrofluoric, formic and phosphoric acids, boron trifluorides and metal chlorides, particularly sulphuric acid or boron trifluoride in the presence of acetic acid.  The adhesives may be used for laminating paper, aluminium foils and polypropylene and regenerated cellulose films.  Examples describe the preparation of aldehyde resins by heating catalytic gas oil with paraformaldehyde in the presence of (III) boron trifluoride/acetic acid and (IV) sulphuric acid/acetic acid catalysts, and hot melt adhesive compositions comprising atactic polypropylene, phenolic antioxidant and (I) tall oil, (III-V) hydrocarbon/aldehyde resin and/or isotactic polypropylene, (VI and VII) a -pinene polymers and/or isotactic polypropylene, (VIII) isotactic polypropylene and (IX) polyethylene.
Patent GB-194913-A (GB)
Title: Improvements in or relating to landing gear for aeroplane flying machines
IPC: B64C25/64
Filed: 1922-02-24
Abstract: 194,913. Short, H. O. Feb. 24, 1922. Dash-pots.-A combined india - rubber spring and dash-pot for absorbing lateral shocks on the landing wheels of air-craft comprises a cylinder 8 fixed within the axle 3, and a piston 12 carried by a rod 6 passing through the closed ends of the cylinder and connected by means of the cap 4 to the hub 1 which is mounted to slide along the axle against the action of rubber springs 14. The piston 12 is formed with oil or other fluid passages 13, and the fluid is introduced into the cylinder through a bore 17 and passages 18 in the rod 6. Means may be provided for controlling the passage of the fluid from one side of the piston to the other.
Patent GB-889352-A (GB)
Title: Improvements in tube flash apparatus, with electrolytic condensers
IPC: H05B41/32
Filed: 1959-02-18
Abstract: 889,352. Charging and discharging condensers. MULTIBLITZ - GERATE Dr. ING. B.A. MANNESMANN GES. FUR. Feb. 18, 1959 [Feb. 21, 1958], No. 5582/59. Class 38 (4). Photoflash apparatus comprises a number of flash tubes 1 housed in a single reflector 2, the energy for each of the flash tubes 1 being supplied by a group of parallelly connected electrolytic condensers 3, the discharge of the condensers into the four flash tubes taking place simultaneously. The condensers are charged from a supply in the normal manner. The flash tubes may be gas-filled. All the discharge paths may be arranged in a common gas space.
Patent GB-1092332-A (GB)
Title: Improvements in or relating to earthenware pipes and accessories
IPC: F16L9/10
Filed: 1965-02-10
Abstract: 1,092,332. Earthenware pipes. J. M. GUERIN. Feb. 10, 1965 [Feb. 10. 1964], No. 5706/65. Heading F2P. A pipe of earthenware has at least three ribs 3 which extend substantially along the entire length of the pipe and the inner shoulder 6 of the socket 2 may be provided with concentric annular ribs to prevent the infiltration of jointing material into the interior of the pipe.
Patent GB-215872-A (GB)
Title: Improvements in, and apparatus for, electrolysing fused salts of metals and recovering the metals and acid radicles
IPC: C25C7/00
Filed: 1923-02-27
Abstract: 215,872. Ashcroft, E. A. Feb. 27, 1923. Addition to 198,024. Electrolytic furnaces.-The process of the parent case is adapted for the production of a metal lighter than the electrolyte by depositing the metal into alloy with a heavy metal in a multiple-couple electrolyzer having electrodes adapted to contain alloy and thereafter setting free the lighter metal in another multiple couple electrolyzer. Magnesium and chlorine are obtained from magnesium chloride in an apparatus comprising two interconnected multiple-couple electrolyzers A, A<2> having electrodes B, B<2> provided with pockets b<2> containing magnesium lead alloy, and passages b<4>. The chloride is fed through the passage a<2>, and chlorine and magnesium are removed through the pipes D<2>. D respectively. The connections may be reversed by means of a switch E, the chloride then being fed to the electrolyzer A through a similar passage a<2>. In this case chlorine forms in A and the magnesium collects in A<2>. In a modification, in which no reversing switch is provided, the pockets b<2> in adjacent electrodes are interconnected by small pipes and a pump circulates the alloy through the apparatus. Carbon or graphite electrodes are used in the primary electrolyzer and iron or steel electrodes are used in the secondary. Specification 152,402 is referred to.
Patent GB-956079-A (GB)
Title: Heat dissipators for electrical components
IPC: H01L23/40
Filed: 1962-02-15
Abstract: 956,079. Semi-conductor devices. INTERNATIONAL ELECTRONIC RESEARCH CORPORATION. Feb. 15, 1962 [Nov. 21, 1961], No. 5796/62. Heading H1K. [Also in Division E2] A heat dissipator for a transistor is of sheet metal and comprises a flange 20 (Figs. 1, 2), and spaced resilient legs 13 for gripping the transistor. The legs 13 each include a portion which extends inwardly at an oblique angle to the axis of the dissipator and a tip 18 which extends outwardly at an oblique angle to the axis. The dissipator has a skirt 11, although this may be omitted, Fig. 3, not shown. The legs are spaced apart by a distance less than the width of a leg. The flange is divided into segments by slits 27 and successive segments are bent upwardly and downwardly to create turbulence in convection currents flowing around the dissipator. Alternatively each segment is given a slight twist to separate adjacent edges. Flange 20 has an outer diameter approximately twice that of the skirt 11. When located on transistors 16, 17 (Fig. 4) on a printed circuit board 35, flanges 20 of two dissipators are at different heights so that one overlies the other and one also overlies another component 36.
Patent GB-959713-A (GB)
Title: Access controller
Inventor: ASHFIELD ADRIAN WALTER FRANCIS
IPC: G07F7/02
Filed: 1962-02-15
Abstract: 959,713. Token sensing devices; checking receipts. KINS DEVELOPMENTS Ltd. May 15, 1963 [Feb. 15, 1962], No. 5816/62. Headings G4T and G4V. The invention relates to a system of credit vending in which a subscriber to the system is given a check on which he is identified by a set of punched holes, a second set of punched holes on the check giving access to vending machines upon insertion into appropriate sensing means which not only releases a given quantity of goods but also records the identity of the subscriber and the value of the transaction. The check is held in the sensing means until press buttons selecting the goods required have been operated followed by a button to record the order. The goods are held inaccessible until the check is withdrawn from the sensing means to ensure that the subscriber does not leave his credit check in the machine. The records are collected periodically for the preparation of addressed bills. Instead of keeping a record of a subscriber's account the check may be purchased for a given sum and the vending machine may punch the check in units to reduce the amount of credit it displays until, when the credit is exhausted the check no longer frees the machine. The check may be used as a season ticket for the use of transport or to obtain access to stadia; it may also be used to obtain access to petrol pumps. Testing validity of check. The check may incorporate a transparent region such that it transmits light only at one particular angle, this being achieved by ruling the surfaces of the region with parallel lines. A diffraction grating may be incorporated in the transparent region to characterize the transmitted light, or one side of the region may comprise semi-cylindrical lenses while the other has a series of parallel opaque lines. Alternatively the region may be such as to trasmit only certain wavelengths. The check may incorporate a resistive strip or have a characteristic magnetic permeability, dielectric constant, or piezo-electric character. The check may fluoresce when subjected to a characteristic radiation or it may bend when heated to break a contact due to its incorporation of a bi-metallic strip.
Patent GB-1373152-A (GB)
Title: Multi-spindle automatic lathes
IPC: B23B9/10
Filed: 1972-02-08
Abstract: 1373152 Multi-spindle lathes WERKZEUGMASCHINENKOMBINAT "7 OKTOBER" BERLIN VEB 8 Feb 1972 5821/72 Heading B3T A multi-spindle automatic lathe comprises a bed 1 with a headstock 2 and an end frame 3 facing the headstock, the headstock carrying an indexable, spindle drum 4 with a plurality of rotary work spindles 7 and the end frame carrying a plurality of tool spindles each in the form of a stationary sleeve 9 on a support 10 with a concentric rotary shaft 12 for carrying stationary turning tools and rotary tools respectively. The end frame 3 is connected with the headstock by way of a guide tube 5 which is indexable with the spindle drum and coaxial therewith. The drive from the work spindles is conveyed to the end frame by way of a shaft 6 coaxial within the tube 5 and which drives the tool shafts 12 through gears 14 and spline 16, the tool sleeves 9 and shafts 12 being axially slidable in their supports 10. The headstock also carries a plurality of cross slides 18 with tools 23 there being one less cross-slide and one less tool sleeve and shaft than there are work spindles whereby at one of the indexed stations of the spindle drum workplaces can be removed and a fresh one inserted in the respective spindle at that station. The spindle sleeves 9 carry a tool mounting 11 for one or more turning and facing tools 22 and the coaxial tool shaft carries a rotary tool 24 the sleeve and shaft being axially displaceable together to permit the tools to perform machining operations on the workpiece 25 whilst simultaneously the tools 23 carried in the cross slides machine other appropriate surfaces on the workpiece, the orientation of the cutting tools at any one work station to which the work spindles are indexed being such that the cutting edges of the turning tools 22, 23 lie in a common working plane which also contains the axis of the work spindle 7 and of the tool sleeve 9.
Patent GB-550215-A (GB)
Title: Improvements in and relating to closures or lids for tins or other receptacles
IPC: B65D43/02
Filed: 1942-04-30
Abstract: 550,215. Tins &c. PORDES, T., and MELYON, M. April 30, 1942, No. 5849. [Class 66] The flange 2 of the lid of a tin or like container is formed with an indented rib 3 extending around half the circumference and bearing on the rim of the enlarged upper portion 6 of the body, a shallow indentation 5 being formed at the central point of the opposite half, at which point on pressure being applied to the upper surface the lid will be raised. The rib 3 may be replaced by three spaced separate indentations. Specification 101,842, [Class 66], is referred to.
Patent GB-835921-A (GB)
Title: Improvements in or relating to apparatus for feeding lamp filament leads and like articles
Inventor: HASLEGRAVE HAROLD HENRY WILSON
IPC: B65G47/14
Filed: 1957-02-21
Abstract: 835,921. Discharge of wires from hoppers; rotary conveyers. GENERAL ELECTRIC CO. Ltd. May 14, 1958 [Feb. 21, 1957], No. 5906/57. Class 78 (1). Leads for filament lamps are discharged singly from a bulk supply aligned crosswise in hopper 1 by drum 12, the drum being rotated in direction 22 so that a lead falls into groove 23 therein and is held there by suction admitted at 30 and carried round till it is discharged by compressed air admitted at 31. The air or suction passes to groove 23 through ducts 25, 26. Inlets 30, 31 is carried by plate 27 pressed into contact with drum 12 by spring 32. The leads in the hopper are pressed towards drum 12 by spring- impelled bar 41, and base 2 of the hopper is made retractable to remedy any jamming of the leads. Side walls 6 of the hopper are adjustable on rails 4, 7. In a second embodiment, a roller is employed, the lead being rotated in the nip between drum and roller before falling into the groove 23. Transfer device (Fig. 1).-The leads after being discharged by compressed air from drum 12 fall into channel 53 of arm 37 of spider 36 and is latched therein by tongue 54. The spider 36 rotates so that arm 37, which runs on roller 51 upon cam 39, pivots about point 38 to assume the vertical position shown, whereat the lead is ready to be released by tongue 54 to fall into support 55 of the table of a pinchforming machine.
Patent GB-1365857-A (GB)
Title: Apparatus for connecting a pipe assembly
IPC: F16L23/12
Filed: 1973-02-07
Abstract: 1365857 Pipe couplings KABELUND METALLWERKE GUTEHOFFNUNGSHœTTE AG 7 Feb 1973 [17 March 1972] 5931/73 Heading F2G In order to form an interconnection between concentric corrugated pipes 1, 2 and an element 3, end of pipe 2 is rolled smooth, so that, on tightening bolts 14, it is sealed against lead alloy on P.T.F.E. gasket 9. Outer pipe 1 is screwed over ring 7 and has a plastics outer sheath 19. Foamed plastics insulation 4 is provided between the pipes. In another form, a conical spigot (20, Fig. 3, not shown) is formed integrally with element 3 and engages a conical socket in ring 7.