baber/WOPTO huggingface dataset:
Patent GB-699411-A (GB)
Title: Improvements in or relating to wired broadcasting systems
Inventor: GABRIEL RALPH PARTON
IPC: H04H20/83
Filed: 1950-07-04
Abstract: 699,411. Distributing news &c. COMMUNICATIONS PATENTS, Ltd. Oct. 4, 1951 [July 4, 1950], No. 16697/50. Class 40 (iv). In a wired broadcasting system in which each receiver station 17 includes a coin-actuated switching device 10 which can be reset from a control station, the resetting signal is arranged to couple all the system loudspeakers 13 to the line 1 transmitting the resetting signal whether or not they had been previously enabled by a coin. The contacts 14, 15 and 18 which couple the loud-speakers to line 1 are closed by relay 9 in response to direct current from terminals 8 when switch 5 at the control station is thrown to the reset condition. Whilst in this condition, speech in a microphone-amplifier 20 may be sent to all stations irrespective of whether they are connected to pair 1 or pair 2, by closing a switch 19. Specifications 699,409, [Group XVIII], is referred to.
Patent GB-1354357-A (GB)
Title: Chromatographic packing with chemically bonded organic stationary phases
IPC: B01J20/32
Filed: 1971-05-24
Abstract: 1354357 Silanes hydrolysed on to or with an inorganic substrate E I DU PONT DE NEMOURS & CO 24 May 1971 [22 May 1970] 16698/71 Heading C3T [Also in Division B1] A chromatographic packing comprises an organosilicon polymeric (or mixtures thereof to vary the degree of cross-linking) stationary phase chemically bonded to a polyvalent metal or metalloid containing substrate. The polymer has repeating units of the formula where A is -O-, hydroxy, or, as R may be as well, a monovalent aliphatic or aromatic hydrocarbon group or substituted derivative thereof and is chemically bonded to the substrate by an linkage where M is the polyvalent metal or metalloid and is part of one of the repeating units. The stationary phase has an average thickness of from 30-10,000 and the polymer comprises 5 to 80 per cent of the volume of the stationary phase. The packing is made by contacting the substrate with a solution in an organic solvent, of (i) the monomer where R 3  is OH or R, or (ii) the hydrolysable compound where R 1  and R 2  are alkoxy and R<SP>1</SP> 3  is alkoxy or R 3  other than hydroxy. The solution is heated to cause polymerization and chemical bonding. The heating is carried out in the presence of less water than 100 times the equivalent of the monomer when the solution contains -the hydrolysable compound in order to form the monomer. The substrate may be silica gel, a glass, sand, a diatomaceous earth, quartz, an aluminosilicate, porous silica beads, a clay, a non-alkaline metal oxide or metal having an oxide skin, alumina, thoria, titania, zircona, or the column wall itself. It may be in the form of rings, polyhedra, spheres, saddles, platelets, fibres, hollow tubes, rods or cylinders. The packing may be used in gas, liquid partition or ion-exchange chromatography.
Patent GB-753279-A (GB)
Title: Improvements in or relating to means for attaching flexible printing plates to a printing bed or -cylinder
IPC: B41F27/02
Filed: 1954-06-08
Abstract: 753,279. Mounting printing surfaces. STROMME, R. June 8, 1954 [June 15, 1953], No. 16745/54. Class 100 (2). Flexible printing surfaces are attached to a printing cylinder or bed having magnetic holding means, by a substantially continuous layer of elements of magnetic material attached to the rear side of the printing surface so forming a printing-plate which is still flexible for disposal around the surface of the cylinder. The elements consist of iron rods 4 placed side-byside and adapted to lie across the poles 11, 12 of the permanent magnets of the cylinder. The rods are rectangular in cross-section having slightly rounded corners. The breadth of the rods is about double their height. They are glued to a flexible textile layer 2, e.g. of bookbinding duck, on which the printing surface 1 is carried. The textile layer may be omitted, the printing surface then being glued directly to the rods.
Patent GB-1426629-A (GB)
Title: Circuit board
IPC: H01R11/01
Filed: 1973-04-09
Abstract: 1426629 Printed circuits R KREEB [trading as RAFI RAIMUND FINSTERHOLZL ELEKTROTECHNISCHE SPEZIALFABRIK] 9 April 1973 [7 Feb 1973] 16846/73 Heading H1R A circuit board comprises a pattern of conductors formed, together with a supporting frame, from a sheet of resilient metal by a punching operation and completely embedded, except for connection sites, in extruded insulating material, the supporting frame portion being removed by severing. The metal may be spring bronze; it provides resilient terminals 12 which may be bent out of the plane of the plate at recesses 11. Plug pins 13 are provided by riveting at sites 9, 10 and as shown, for a voltage change over switch, rotating member 17 has contacts (18) (Fig. 3, not shown) which are connectable to sites 5 to 8.
Patent GB-286140-A (GB)
Title: A pressure closure apparatus for plate coolers for soap and the like
IPC: C11D13/12
Filed: 1927-06-25
Abstract: 286,140. Fischer, H., and Grodnitzky, L. June 25, 1927. Moulding soap; presses, mechanical.-Relates to pressure closure apparatus for plate coolers for soap &c., and comprises pressure equalizing means. As shown, mould frames 1 and cooling plates 2 are clamped between a fixed head 9 and a movable head 3 operated by nuts 6 traversing rods 7 and actuated through gearing 4, 5. The final pressure is applied through the rods 7, which are connected to levers 14 pivoted to the head 9 and connected through links 15 to a head 13 pivoted at 12 to a member 8 operable by a handwheel 10.
Patent GB-129637-A (GB)
Title: Method of Purifying the Gases Intented for the Synthetic Production of Ammonia.
IPC: C01B3/02
Filed: 1918-10-04
Abstract: 129,637. L'Air Liquide, Soc. Anon. pour I'Etude et l'Exploitation des ProcÚdÚs G. Claude. Feb. 15, 1918, [Convention date]. Nitrogen; hydrogen; oxygen.- Nitrogen and hydrogen mixtures for the synthesis of ammonia under " hyperpressures," defined as pressures of 400 to 2000 atmospheres, are purified from oxygen by passing the gases under hyperpressure over heated palladiumasbestos or platinum-asbestos, and then freezing out the water formed. In the apparatus shown, the compressed gases enter a heat-exchanger E, at A, and after passing over the heated platinum-asbestos or palladium-asbestos P, pass to a second heat-exchanger E<2>, the lower part of which is cooled to the freezing-point of water under the pressure employed; the purified gases leave the apparatus at S. Specification 130,086, [Class 1 (i), Chemical processes &c.], is referred to. The Specification as open to inspection under Sect. 91 (3) (a) includes the application of the process to the purification of any gas mixture containing oxygen and hydrogen in which one of these gases constitutes an impurity with respect to the other. This subject-matter does not appear in the Specification as accepted.
Patent GB-669630-A (GB)
Title: Improvements in or relating to machines for making wire fabric
IPC: B21F27/06
Filed: 1949-11-25
Abstract: 669,630. Making wire netting. WEAN EQUIPMENT CORPORATION. Nov. 25, 1949 [March 31, 1949], No. 17044/51. Divided out of 669,605. Class 83 (iv). Coiling; winding.-In a machine for making wire fabric as in Specification 669,605, with means for pulling wires from spools and feeding it to twisting means, an overfeed preventer is fitted between the pulling and the twisting means to avoid formation of slack at the twisting means. The wires 8 from the spools are fed by a capstan 12 to an overfeed preventer 75 in which bars 77 are adjusted in slots 76 by screws 78 to exert a back tension on the wires. When the wire is fed by the capstan faster than it is used by the twisting mechanism, the bars 77 cause it to pile up between the bars and the capstan and to loosen about the capstan to reduce the feed.
Patent GB-146135-A (GB)
Title: Improvements in or relating to concrete-handling apparatus
IPC: E04G21/02
Filed: 1920-06-23
Abstract: 146,135. Insley Manufacturing Co., (Assignees of Insley, W. H., and Rasmussen, A. C.). April 14, 1917, [Convention date]. Hoists with guided skips.-In apparatus for handling concrete of the kind in which a ship 13 movable vertically in a structure 10 is tipped automatically to discharge into a hopper 23 by means mounted on the hopper, the tipping means can be retracted clear of the structure when the hopper is to be moved vertically. The tipping-device comprises two pairs of parallel curved brackets 34, each pair of which is pivotally mounted near an end of a cross-bar 30 on the hopper. The brackets can be turned so that their inner ends are in position to receive rollers 14 mounted on the skip, or so that they are outside the structure. The brackets arc held in tipping position by rods 36.
Patent GB-949002-A (GB)
Title: Sprag-clutch and retainer structure
Inventor: LUND JOHAN
IPC: F16D41/07
Filed: 1962-05-03
Abstract: 949,002. Ratchet clutches. FORMSPRAG CO. May 3, 1962, No. 17104/62. Heading F2C. In a one-way clutch with tiltable sprags 14 biased towards wedging engagement with outer and inner races 12, 13, by expanding garter springs 16 arranged in slots 17 in each end of the sprags, the sprags 14 are spaced and retained by a pair of stamped sheet metal discs 22 which are independently arranged, one each end of the sprags, and have axiallyextending sprag spacer portions 25 terminating in radially outurned ends 26 which centre the discs 22 in the outer clutch race 12. Limited outer and inner clearances C, C<SP>1</SP>, permit free movement of the sprags for clutch operation, the close spacing of the sprags preventing skewing thereof. The retainer discs may be standardized for clutches of varying widths using sprags of common form. For assembly, one retainer disc 22 and garter spring 16 is placed in position between the races 12, 13, with the spring located in a channel (Fig. 4, not shown), formed on the disc by the axial extension 25, the sprags 14 being set in place one by one and the other retainer disc and spring snapped over the free ends of the sprags.
Patent GB-937093-A (GB)
Title: Improvements in or relating to a photographic camera
IPC: G03B7/04
Filed: 1960-05-16
Abstract: 937,093. Photographic cameras. KODAK Ltd. May 16, 1960 [May 16, 1959], No.17131/60. Class 98 (1). A photographic camera comprises a photoelectric exposure meter having a pointer visible in a viewing window relative to an index mask, and a manually operable regulating member coupled to an adjustable lens diaphragm and movable through either of two ranges in both of which the diaphragm is adjusted through its full range of aperture sizes, the regulating member being arranged to move the meter body within at least one of the two ranges for aligning the pointer with the index mark. In the two cameras shown in Figs. 3, 5 two scales 1a 16 corresponding to daylight and bulb exposures respectively are marked on a ring 1 which is rotatable to vary the diaphragm apertures. For operation over the daylight scale a cam 1c moves a rod 3, 3a in a direction parallel to the optical axis. A cord 4 extends from this rod over the rotatable shaft, on which the exposure meter 2 with its pointer 26 is mounted, to a spring 6. Thus, movement of rod 3a, 3 is transmitted via cord 4, shaft 2a and meter 2, to the pointer 26, which is visible in the viewfinder field, until it registers with an index 8, when the diaphragm is correctly set. To prevent the movement of the pointer misleading the operator during diaphragm adjustment over the bulb exposure scale 1) in Fig. 3, cam 1d moves rod 3a into a position in which pointer 26 is in a predetermined zero position and electrical contact 21 is connected through the cam 1d to contact 20, thereby closing a circuit which cuts out the meter or 2) in Fig. 5, cam Id operates a lever 10 rotatable about a point 9 to move a mask 7 into the field of view so that the pointer 26 is no longer visible.
Patent GB-453457-A (GB)
Title: Method of preparing a pulverulent fuel and of operating an internal combustion engine therewith
IPC: F02B45/02
Filed: 1935-06-14
Abstract: Fuel for use in internal-combustion engines is prepared by separating finely divided coal into portions poor and rich in ash and grinding the former in a liquid medium which produces a film thickness no greater than that of the engine lubricant until the maximum diameter of the ash grains is no greater than that thickness.  The grinding liquid may be partially evaporated away after or during the grinding and the fuel used as a mixture which can be pumped.  If a non-combustible grinding liquid is used, to obviate its complete evaporation a combustible liquid is desirably added after partial removal of the grinding liquid and the mixture stored in tanks. Stabilizers may be added to the powder-liquid mixtures.  A grinding liquid more fluid than the engine lubricant is preferably used and may comprise gas oil, petroleum, alcohol, petrol or turpentine.  A preliminary grinding of the coal in a disintegrator, hammer, or percussion mill is preferably effected, and the preliminary and fine-grinding mills may be arranged in tandem and driven by the engine.  Specification 321,145, [Class 7 (ii)], is referred to.
Patent GB-437802-A (GB)
Title: Improvements in sieve plates for pot presses
IPC: B30B9/26
Filed: 1935-06-15
Abstract: 437,802. Presses for separating liquids from solids. LEHMANN, F. B., (trading as LEHMANN, J. M., [Firm of]), 108, Freiberger Strasse, and LEIMER, K., 54, Carolastrasse, both in Dresden, Germany. June 15, 1935, No. 17259. [Class 46] An apertured strainer plate 3 for use with the platen or pot of a pot-press is faced with one or more sheets 4 of monel metal or other metallic fabric having the margin turned over into a groove in the plate 3. As shown in Fig. 1 the margin of the fabric 4 is clamped by a ring 6 having one face flush with the fabric, the plate 3, the fabric 4 and the ring 6 being united by welding or soldering. As shown in Fig. 2 the margin of the fabric 4 is fixed in an annular groove in a ring 9 which is firmly fitted into a groove in the plate 3. The plate 3 has a number of holes 11 through which a tool can be passed to detach the ring 9 and the fabric for replacement. One or more slightly smaller sheets of fabric or sheet metal discs may be interposed between the fabric 4 and the plate 3.
Patent GB-575618-A (GB)
Title: Improvements in and relating to the production of ª‰-nitroethanol and ª‰-nitroethyl nitrate
IPC: C07C205/40
Filed: 1942-12-04
Abstract: A crude 1 : 2-dinitroethane reaction product obtained from ethylene and nitrogen tetroxide according to the processes of Specifications 572,949 and 575,604 is mixed with water or water p  and an aromatic hydrocarbon liquid and the mixture allowed to form two layers.  b -Nitroethylnitrate is then recovered from the non-aqueous layer by distillation and b -nitroethanol extracted from the aqueous layer by means of a solvent such as ether.  It is desirable to remove the 1 : 2-dinitroethane before recovery of the other products.  This may be done merely by precipitation by cooling or by adding an organic hydrocarbon and cooling.  Solvents such as acetone, ether or methyl or ethyl alcohol may be used, but in this case after separation of the precipitated 1 : 2-dinitroethane, they are removed by distillation.  It is also desirable to remove nitrogen oxides, nitrous acid and nitric acid, for example by blowing air through the crude product before treatment, and also to add alkali to the aqueous layer to depress the solubility of the b -nitroethylnitrate therein. Detailed examples are given.
Patent GB-345164-A (GB)
Title: Improvements in spring suspensions for vehicles
IPC: B60G11/02
Filed: 1930-06-05
Abstract: 345,164. Road vehicle spring suspensions. BELOYT CORPORATION, 366, Madison Avenue, New York, U.S.A.- (Assignees of Bell, H. W. ; Ardsley-on- Hudson, New York, U.S.A.) June 5, 1930, No. 17414. Convention date, July 20, 1929. [Classes 108 (ii) and 108 (iii).] The ends of laminated springs which are flexibly connected to the frame of a vehicle are prevented from twisting, when one is deflected more than another on the opposite side, by means such as a cross bar. In the construction shown in Figs. 1 and 2, one end of each of the master leaves of the springs 4 is bent up at right-angles and connected by two bolts or rivets to a transverse bar 18 of deep but narrow section, which prevents twisting of the ends of the springs, but does not interfere with any other movement. These ends of the springs are connected to the frame 2 by reinforced rubber connections 6. The other ends of the master leaves of the springs 4 are bent downwardly and similarly connected to one another by a transverse bar 20, the ends of the springs being connected to the frame by flexible rubber discs allowing free move. ment in every direction, as described in Specifications 181,144 and 197,536, [both in Class 108 (iii), Springs &c.]. Several modifications are shown in which the rubber connections between the springs and the frame are replaced by pivots, shackles or other metallic connections.
Patent GB-672963-A (GB)
Title: Improvements in, or relating to, valves
Inventor: EATON JOHN
IPC: F16K11/065
Filed: 1947-07-03
Abstract: 672,963. Valve gear. LANG PNEUMATIC; Ltd. July 2, 1948 [July 3, 1947], No. 17497/47. Class 122(ii) [Also in Group XXIX] In a valve of the kind having a reciprocable valve member 9 comprising a channel 11 whose longer centre line is located along the direction of reciprocation, the valve member being reciprocated under control of a rod having a projection which engages a recess 12 in the member and the rod being provided at each of its opposite ends with a piston 15 housed in a complementary cylinder 17 and being reciprocated by admission of pressure fluid first to. one cylinder and then the other, the valve member is housed within a chamber 3 formed internally of a cap or cover 4, the recess extends across the valve member at right angles to the longer centre line of the channel, the projection comprises a twopiece collar 13 clamped upon the control rod and the cylinders are secured in opposite end walls of the cover. As described the valve controls air under pressure which enters the chamber 3 by an inlet 8 and is supplied to one or other of passages 5, 7 under control of the valve member 9. When the valve opens one passage to the chamber 3 it connects the other to an exhaust passage 6 and vice versa. The control of the fluid under pressure to the cylinders 17 may be effected by a valve as described in Specification 621,021, [Group XXIX], referred to. According to the Provisional Specification the valve which controls the supply of pressure fluid to the cylinders may be adapted for actuation by a part of the machine driven by the fluid controlled by the valve member 9. Manual operation of the valve in one or both directions is referred to.
Patent GB-389799-A (GB)
Title: Improvements in metal-vapour rectifier vessels
IPC: H01J13/32
Filed: 1931-06-17
Abstract: 389,799. Metallic - vapour rectifiers. MASCHINENFABRIK OERLIKON, Oerlikon, near Z³rich, Switzerland. June 17, 1931, No. 17586. Convention date, June 26, 1930. Void [Published under Sect. 91 of the Acts]. [Class 39 (i).] A condensing chamber 4 is formed below the anodes and is cooled by radial pipes 7 connected at both ends to the cooling jacket 6 or by radial watercooled plates 8. An arc guide 5 is provided.
Patent GB-1494174-A (GB)
Title: Conveyor means
IPC: B65G35/00
Filed: 1976-04-30
Abstract: 1494174 Travelling-wave conveyers COAL INDUSTRY (PATENTS) Ltd 13 April 1977 [30 April 1976] 17683/76 Heading B8A Adjacent inflatable members 1 are repeatedly inflated and deflated to a different degree so as to produce a travelling-wave in a conveying direction, a flexible cover 4 on the members 1 providing a continuous conveying surface. The members 1 are collected through air lines 5 to valves 10 operated by a cam arrangement 7 to connect the lines 5 to a pressure source 11 or to atmosphere.
Patent GB-1534815-A (GB)
Title: Cleaning compositions
IPC: C11D3/12
Filed: 1977-04-28
Abstract: 1534815 Scouring compositions HENKEL KG AUF AKTIEN 28 April 1977 [29 April 1976] 17738/77 Heading C5D A liquid scouring composition comprises 30-60% by wt.of cristobalite of size less than 150 microns, 1-10% by wt. of a non-cationic surfactant, 0À1-2% by wt. of a thickener such as a polyacrylate or methacrylate and 27-68À9% by wt. of a liquid carrier, preferably water. The cristobalite may be replaced by up to 50% by weight of another abrasive substance.
Patent GB-595974-A (GB)
Title: Improvements in or relating to means for producing spaced current impulses
IPC: G08B21/00
Filed: 1945-07-12
Abstract: 595,974. Adjustable couplings. TAREX SOC. ANON. July 12, 1945, No: 17792. Convention date, Aug. 21, 1944. [Class 80(ii)] [Also in Groups XXXVIII and XL] Spaced impulses are produced by feelers 11, Figs. 1 and 2, co-operating with angularly adjustable rotatable drums 1, 3 or discs, having notches 23, Fig. 2. The drums are loosely mounted on a hub 2 rotated by a shaft 2a, and are coupled to the hub by spring urged bolts 7, mounted in the hub, which carry members 5 engaging teeth 6 within the drum. The feeler 11 bears on the surface of the drum and on entering the notch 23 lifts a plunger 13 to close contacts 19, 21 to produce an impulse: 01 entering the further notch 10, the wheel 17 rides over the protrusion 22 and the spring 20 withdraws the plunger to break the contacts 19, 21. Further contacts in parallel with contacts 19, 21 are actuated by other feelers co-operating with other drums. The drums may be replaced by concentric discs, Figs. 3 and 4 not shown. The drums or cylinders may have apertures through which light passes to photoelectric cells for generating the impulses.
Patent GB-668053-A (GB)
Title: Improvements in and relating to electric high tension pressure cables
IPC: H01B9/06
Filed: 1950-07-17
Abstract: 668,053. Pressure cables. FELTEN & GUILLEAUME CARLSWERK AKT.-GES. July 17, 1950 [Nov. 25, 1949], No. 17835/50. Class 36. The core of a high tension cable comprising at least one insulatec conductor 1, 2 is dis posed within a pressure resisting sheath 3 anc subjected to pressure from all sides by a liquic or gaseous pressure me dium 4 within the sheath the sheath being made of aluminium which has been subjected to a cold deformation treatment. The sheath may be pressed around the core, or the core may be drawn into an aluminium tube. In either case the sheath is made with a sufficiently large internal diameter to permit subsequent reduction to the required diameter by a cold deformation process.
Patent GB-1456667-A (GB)
Title: Electric motors and generators
IPC: H02K3/28
Filed: 1973-04-13
Abstract: 1456667 Winding layouts in dynamo-electric machines NATIONAL RESEARCH DEVELOPMENT CORP 29 March 1974 [13 April 1973] 17942/73 Heading H2A In a 3-phase PAM machine having a composite 3-phase stator winding comprising two component 3-phase windings occupying respective halves of the stator periphery and having their corresponding phase windings connected in the same phase of the composite winding, each component winding comprises the coils of one of two identical PAM windings for providing the operating pole numbers of the PAM machine, the components being so arranged in their respective halves of the stator that corresponding coils of the two components do not coincide on a stator diameter. The drawing shows a 10 pole/14 pole winding in 48 slots, the first component being in slots 1 to 24 and the second component being shifted through ten slots to start at slot 35. The last ten coil sides of the second component are transposed to slots 25 to 34. The ten-slot shifting corresponds to a spacing of two poles per 10 pole operation and three poles for 14 pole operation. Each component winding comprises a first group of coils which are reversed in current carrying sense for one operating pole number and a second group of coils which are not reversed, the first group of coils of each phase winding being connected in parallel with the second group for that pole number. The shifting of the second component through ten slots is said to minimise the difference in the amplitude of the voltages in the two parallel paths.