baber/WOPTO huggingface dataset:
Patent GB-369285-A (GB)
Title: An improved process and apparatus for constructing concrete walls without falsework
IPC: E04G11/18
Filed: 1931-06-08
Abstract: 369,285. Casting walls in situ. SCHMIDT, J. T., Nebel-on-Amrum, Germany. June 8, 1931, No. 25991/30. [Class 20 (ii).] Concrete walls are cast course upon course between movable metal moulds which are raised immediately after the casting of one course, and are supported on that course. The. courses are formed of layers not more than 25 cms. in height, and the aggregate used is only slightly moistened. The outer moulds comprise flanged metal plates a supported on cross-bars d on the previously cast course, and upper distancing-members pare used on the moulds, pins c passing through the ends of these distancing-members and through apertures in the flanges of the moulds. The end parts f of the upper distancing-members are secured to the moulds and are hinged to the main part p, and springs h are used to pull these parts upward and so release the moulds from the cast surfaces as soon as the pins c are withdrawn. For hollow walls, coreplates b are fixed to the upper distancing- members, and these are expanded by a rotatable key k and are spring-retracted.
Patent GB-532639-A (GB)
Title: New or improved railway turn-out or switch
IPC: E01B7/08
Filed: 1939-09-18
Abstract: 532,639. Railway switches. TAYLOR, T. Sept. 18, 1939, No. 26047. [Class 104 (i)] A pair of switch rails 1 for connecting a main track 8 to its continuation on the other side or to branch tracks 9, 10 are pivoted at 11, preferably nearer the branch line end.' The rails 1 have three treads 2, 3, 4 corresponding to the tracks 8, 9, 10, and may be fixed to a plate 16 pivoting on the pins 11. In another form, the two rails 1 are mounted on a plate pivoting on a single pin.
Patent GB-206144-A (GB)
Title: Improvements in and relating to reverberatory furnaces
IPC: F27B3/20
Filed: 1923-10-19
Abstract: 206,144. Heimsoth & Vollmer Ges., (Assignees of Studt, H.). Oct. 27, 1922, [Convention date]. G a s eous - fuel f u r naces. -In an openhearth or like furnace in which the air port 1, Fig. 1, enters the furnace from below while gas is delivered from above or in an horizontal direction through a port 2, the inner end 4 of the gas port and part of the rear wall 5 of the air port are made removable and with faces inclined to each other and to the vertical so that the joints are maintained gas-tight by the weight of the removable port end. A water-cooled frame is provided on the rear wall 5 and the adjacent part of the gas port the upper vault 6 of which is self-contained and movable, as shown in Fig. 3.
Patent GB-1325826-A (GB)
Title: Transmission gears
IPC: F16H61/02
Filed: 1971-04-19
Abstract: 1325826 Variable speed gears ZAHNRADFABRIK FRIEDRICHSHAFEN AG 19 April 1971 [28 April 1970] 26237/71 Heading F2D An epicyclic gear train 47 has in addition to an output shaft, three telescoped co-axial shafts 42, 43, 44 extending therefrom to brakes C, D for the outer two shafts 43, 44 and to clutches A, B for connecting the inner two shafts 42, 43 selectively to an engine driven input 41, (e.g. via an hydraulic torque converter). The clutches and brakes may be hydraulically operated friction disc devices. They may be arranged as shown or with the brake C axially adjacent the clutch B, the clutches and brakes being in the axial order C, B, A, D, and using similar sized discs.
Patent GB-150979-A (GB)
Title: An improved process for the manufacture of nitro-calcite nitrogenous calcium capableof being sprinkled and stored
IPC: C05C7/00
Filed: 1920-09-13
Abstract: Granular calcium cyanamide is produced by treating calcium cyanamide with more than enough water to slake the line &c. under such conditions of temperature and pressure that the excess water is immediately evaporated.  Temperatures of 70-80 DEG  C. and a reduced pressure are mentioned.  The water may contain dissolved or suspended matter which may enter into reaction with the calcium oxide, or may have a binding effect.  The substances mentioned are sodium sulphate, ferrous sulphate, clay, cyanamide and potato meal, and urea. Carbonic acid may be introduced with a salt solution, and may serve to spray the solution over the cyanamide.
Patent GB-1430577-A (GB)
Title: Bag carrying device
IPC: A47F9/04
Filed: 1972-06-06
Abstract: 1430577 Supermarket check-outs IMPERIAL CHEMICAL INDUSTRIES Ltd 28 June 1973 [6 June 1972] 26353/72 Heading A4T [Also in Division B8] Apparatus for facilitating the manual loading of a carrier bag 12 at a supermarket check-out point,  comprises a structure with a loading cavity 1 defined by walls 2, 3, 4 and an open side 5, there being upwardly extending projections 7, 8 to engage the bag handles and hold the bag open. An upwardly inclined lip 6 beneath open side 5  retains loose articles. Shelves 9, 10, 11 may be provided beneath cavity 1.
Patent GB-323002-A (GB)
Title: Improvements in concrete slabs or monoliths for the floors or ceilings of buildings and the like, and in the method of producing and applying same
IPC: E04B5/06
Filed: 1928-09-14
Abstract: 323,002. Concrete, Ltd., Ambrose, J. G., and Mathews, C. B. Sept. 14, 1928. Moulds.-Cores f, Figs. 6 and 7, are used to form grooves g in moulding the floor blocks a, Figs. 4 and 11. The gapped core f produces the webs h, Fig. 4, in which holes w<1> are eventually knocked, and the core of Fig. 13 forms holes w in the web h<1>.
Patent GB-466648-A (GB)
Title: Latch knitting needle
IPC: D04B35/02
Filed: 1936-09-29
Abstract: 466,648. Latch knitting needles. PAGE, C. L. Sept. 29, 1936, No. 26375. Convention date, Oct. 4, 1935. [Class 74 (ii)] The under surface 17 of the top bar 10 of the hook of a latch needle is straight and horizontal (i.e. perpendicular to the needle shank) so that when two or more yarns are fed to the hook they will lie side by side under the top bar and all be drawn to the same extent through the old loops, forming loops of equal length. Furthermore the inner one of these yarns, or the yarn (if only one is fed) will lie in the inner corner 18 of the hook, thus decreasing the effective diameter of the needle cylinder. This inner corner 18 is slightly rounded. The check 7 of the needle is offset forwardly as shown, producing the concavity 19. By this means the old loop 16 has to traverse a longer path before reaching the latch, the closing- of which is therefore delayed, so allowing the newly fed yarn to be positioned higher in the throat before the latch closes, with the result that the yarn is not caught and damaged thereby : the consequent forward offsetting of the latch pivot 13 also widens the lower portin of the eye. The closing of the latch may also be delayed by forming on it an indentation 21 adjacent to the pivot 13, into which indentation the previously formed stitch moves as the needle is drawn through it.
Patent GB-765671-A (GB)
Title: Apparatus for sweeping lawns and like surfaces
IPC: A01G1/12
Filed: 1951-11-10
Abstract: 765,671. Sweeping lawns. RAMSDEN, E. Jan. 17, 1952 [Nov. 10, 1951], No. 26381/51. Class 6(2). [Also in Group X] A machine for sweeping grass surfaces has a brush 8 rotated by chain gear from the ground wheels 5 and mounted with its axle freely movable in arcuate slots 9 in the side walls of an enclosing casing fitted with a removable collecting box 18. The brush axle is carried by arms 10 pivoted at 6 to the ground wheel axle and each provided with a nut 11 with which engages an adjusting screw freely movable in a bracket 13 on the casing. A pivoted adjustable combing brush 21 engages the periphery of the main brush. The machine is provided with rear castor wheels 7 and is propelled by a handle 26.
Patent GB-362902-A (GB)
Title: Improvements in or relating to apparatus or articles for use in chemical and like processes and alloys therefor
IPC: B01J3/04
Filed: 1930-09-04
Abstract: Welded vessels or plant for use in chemical processes are made from austenitic steel containing 10-20 per cent of chromium, 6-14 per cent of nickel, 0,07-0,25 per cent of carbon, and 0,3-0,9 per cent of titanium, with or without 0,3-1,5 per cent of tungsten. Specification 316,394, [Class 82 (i), Metals, Extracting &c.], is referred to.  Reference has been directed by the Comptroller to Specification 337,349, [Class 82 (i), Metals, Extracting &c.].
Patent GB-807331-A (GB)
Title: Improvements in or relating to delayed action electromagnetic actuating devices, particularly for electromagnetic contactors
IPC: H01H51/20
Filed: 1954-09-13
Abstract: 807,331. Electromagnetic switches. WEST & CO. Ltd., A., and PAVITT, F. J. Aug. 12, 1955 [Sept. 13, 1954], No. 26430/54. Class 38 (5). A contactor comprises an operating coil 1 surrounded by a rectangular magnetic frame 3a, 4, 3, 5, the plunger armature 2, when operated, being attracted towards a depending core projection 6 of the upper frame member 4 to rotate a main-contact carrying shaft 9 connected to the plunger by a crank 8. An economy resistance is inserted in the coil circuit upon attraction of the armature 2 by means of an auxiliary armature controlling a bridging contact 20 normally short-circuiting the resistance through a pair of fixed contacts 19 (only one shown). The auxiliary armature comprises two side arms 21, 22 connected by a cross-arm 23 and pivoted on studs 24 screwed into the lower frame member 5, leaf-springs 40 on the side arms engaging beneath the stud heads to ensure good magnetic contact with the member 5. After attraction of the plunger 2 a leakage flux attracts the auxiliary armature so that the cross-arm 23 engages the frame member 4 and an armature extension 26 moves a rod 25 carrying the contact 20, against the bias of return-springs 27, 28, to open the contacts 20, 21.
Patent GB-502975-A (GB)
Title: Improvements in or relating to optical systems particularly for use with electron discharge devices
IPC: G02B1/00
Filed: 1937-10-01
Abstract: 502,975. Optical systems. WRIGHT, W. D. Oct. 1, 1937, No. 20502. [Class 97 (i)] An image-forming system consists of a projection lens system 3 arranged to form an image in a plane 4, and a divergent lens 5 in the vicinity of the plane 4, the divergent lens being so constructed that a focused image is formed on a surface which is convex towards the image-forming rays. Preferably the image is formed on the emergent surface 7 of the lens 5. In order to reduce aberrations, the system is so arranged that the plane 9 of the exit pupil of the lens 3 contains the centre of curvature of the surface 6 of the lens 5. The system is particularly intended for projecting an image on to the photo-sensitive cathode of an electron' discharge device, the cathode being curved in order to produce a flat electron image, and transparent so that the optical image can be projected on to its convex surface. For use with such apparatus the optical system produces a focused image on a curved surface having the same configuration as the cathode, and, when the image is formed on the surface 7, the cathode may be placed in contact with this surface.
Patent GB-866450-A (GB)
Title: Improvements in or relating to 3,4-dichlorotetra-hydrothiophene-1,1-dioxides
IPC: C07D333/48
Filed: 1957-08-22
Abstract: The invention comprises the cis and trans stereoisomers of 3,4-dichloro-tetrahydrothiophene-1,1-dioxide and a process for the preparation of the cis isomer by chlorinating 2,5-dihydrothiophene-1, 1-dioxide with gaseous chlorine in a non polar liquid containing no chlorination catalysts which are ionic in nature and a process for the preparation of the trans isomer by chlorinating 2,5-dihydrothiophene-1,1-dioxide with gaseous chlorine in a polar liquid medium or in a non polar solvent which contains a chlorination catalyst which is ionic in nature.  The chlorination product from both processes contains a mixture of isomers containing predominantly the desired isomer and the isomers are separated by repeated recrystalisations.  In examples the cis isomer is prepared in a carbon tetrachloride medium and the trans isomer in a chloroform, chlorobenzene, carbontetrachloride and benzene medium using ferric chloride, iron, iodine, and antimony and aluminium chlorides as chlorination catalysts.ALSO:Nematocidal compositions comprise an inert, non-alkaline diluent and, as active ingredient, from 10 to 90% of a cis or trans stereoisomer of 3,4 - dichlorotetrahydrothiophene - 1,1 - dioxide.  The active compounds may be formulated into any of the usual solid or liquid forms and surfactants may be added.
Patent GB-1312346-A (GB)
Title: Glass bricks
IPC: C03C17/25
Filed: 1970-06-02
Abstract: 1312346 Coated glass bricks COMPAGNIE DE SAINT-GOBAIN 2 June 1970 [2 June 1969] 26585/70 Heading B2E A hollow glass brick having baked onto at least one external face a coating not exceeding 300 millimicrons in thickness of one or more oxides of the metals Fe, Ni, Co, Cr, Mn, Cu, Pb, Zn, V, Zr, Bi, Sb, La, In or Ce is made by spraying a solution of one or more metal salts onto the face of the brick while it is maintained at a temperature of 500-600‹C. The coating preferably contains at least 10% wt of chromium oxide. The optical thickness of the coating (i.e. geometrical thickness x refractive index) should preferably not exceed 400 millimicrons. Two half-bricks may be welded together to form the hollow brick and the external faces are then coated. In the examples, coatings of (1) CO 3 O 4 , NcO and Cr 2 O 3  and (2) Fe 2 O 3  and Cr 2 O 3  are applied.
Patent GB-264792-A (GB)
IPC: G01R27/02
Filed: 1926-10-25
Abstract: 264,792. Strauss, S. Jan. 23, 1926, [Convention date]. Actinometers. - Relates to instruments for measuring the intensity of R÷ntgen rays of the kind described in Specification 177,808, in which the grid of a thermionic valve is alternately charged negatively and discharged through a resistance comprising an ionizing chamber acted on by the rays to be measured, the number of current impulses occurring in a given time being a measure of the value of the resistance. According to the present invention, the resistance W, Fig. 3, to be measured is connected between the cathode K and grid G of the valve R. In series with the anode A of the valve is the primary winding of the autotransformer T, the secondary winding S of which causes the grid G to be negatively charged through a small grid condenser C when the space current drops owing to the accumulation of electrons on the grid. In the instrument shown in Fig. 4 for measuring the intensities of R÷ntgen rays or the R÷ntgen dose, the rays act upon an ionizing chamber D consisting of an evacuated bulb, the resistance of which depends upon the degree of ionization of the residual gas, which is a measure of the intensity of the rays. The grid condenser is dispensed with, the wires running to the ionizing chamber being arranged parallel to one another so as to have some capacity. The primary winding P of the autotransformer T is connected to the cathode K through a pair of contacts a, b of a relay F, the circuit of the primary winding being in parallel with the heating circuit of the cathode K. The plate circuit of the valve R includes the high-tension battery B2 and the winding of the relay F. The relay F has also a second pair of contacts c, d controlling a counter Z, beside which may be arranged a clock N. A high resistance W1 may be connected in series with the ionizing chamber D. All wires leading to the grid, and preferably the whole valve and its connections, are enclosed in metal tubes or hose M. The relay, transformer, battery, &c. may also be enclosed in a metal casing M1. The electrostatic shields M, M1 may be of metal netting and earthed at several points. The plate voltage employed is about double that normally used. The Specification as open to inspection under Sect. 91 (3) (a) comprises also a modification in which the relay F controls only the two contacts operating the counting-gear, which itself operates contacts in the primary circuit of the transformer. This subject-matter does not appear in the Specification as accepted.
Patent GB-284388-A (GB)
Title: Improvements in and relating to bands for articles of clothing and the like and articles of clothing and the like provided therewith
IPC: A41B9/14
Filed: 1926-10-25
Abstract: 284,388. Hasselkuss, E. Oct. 25, 1926. Undergarments; waistbands; neckbands.-Relates to bands for undergarments or bathing dresses bands and consists in making the bands, which may be a neck band c and a waistband b, of uniformlyovertwisted warp threads so as to be elastic. To increase the elasticity rubber threads may also be incorporated. The overtwisted threads may have about double the normal twist, viz. about 1500-2000 turns per metre. The band may be made in strips with some of the warps overtwisted and some of normal twist. If the bands are moistened after manufacture, such as in bathing, the overtwisted threads contract considerably and make the garment close fitting. The band may be a double or multiple band, and may be tubular or folded. It may be provided with slits for forming buttonboles.
Patent GB-174125-A (GB)
Title: Improvements in or relating to the manufacture of formates of the alkali metals
IPC: C07C51/10
Filed: 1920-09-17
Abstract: A caustic alkali solution is treated with carbon monoxide in the presence of a finely-divided inert solid initially suspended in the solution.  Contact between the gas and the liquid is thus p promoted.  The solid may be a calcium salt containing carbon and oxygen.  Calcium carbonate, formed in the manufacture of the caustic alkali solution from sodium carbonate solution and lime, may be left in the solution during treatment with carbon monoxide. Calcium oxalate, precipitated by lime from alkali-formate solution as described in Specification 160,747, may similarly be employed. Reference has been directed by the Comptroller to Specification 160,747.
Patent GB-462557-A (GB)
Title: Warming or cooling and ventilating plant for housed chicken brooders
IPC: A01K31/20
Filed: 1935-09-28
Abstract: 462,557. Feeding and drinking appliances for animals. PYRAH, H. A. Sept. 28, 1935, No. 26849. [Class 5 (ii)] [Also in Group X] Food or water troughs d, Fig. 1, around the superposed compartments of a housed chicken brooder are supported upon hooks on the framework of the brooder. A longitudinal glass panel d<5>, Fig. 4, is supported in end brackets d<6> so formed with a number of slots at the bottom that the panel may be moved backwards or forwards to adjust the feeding room in a trough.
Patent GB-1235873-A (GB)
Title: Improved advancing mine roof support
Inventor: SHUTTLEWORTH PETER
IPC: E21D23/00
Filed: 1968-06-06
Abstract: 1,235,873. Advancing mine roof supports. MASTABAR MINING EQUIPMENT CO. Ltd. 6 June, 1968, No. 26893/68. Addition to 1,148,953. Heading E1P. In an advancing mine roof support as claimed in claims 1 and 2 of Specification 1,148,953, the canopy extends forwardly beyond the front end of the support by an amount at least equal to that required to cover the advancing ram in its fully extended position. The increased forward length may be obtained simply by using a canopy of suitable length. The canopy extension may, however, comprise a cantilevered arm formed of a load spreader plate 86 secured to and bridging the forward ends of two parallel leaf springs 84.
Patent GB-723284-A (GB)
Title: Improvements in or relating to multiple superimposed tray assemblages
IPC: B25H3/02
Filed: 1952-10-27
Abstract: 723,284. Stands. CONRADI, G. H. E. July 22, 1953 [Oct. 27, 1952], No. 26995/52. Class 52 (3). Trays 14 for rotatable mounting on a supporting pillar 12 are moulded from plastic material and have within the peripheral flange 22 at one end a tubular boss 24 extending upwardly from the tray bottom 20 forming a bearing for the pillar. Strengthening ribs extend from the boss to the tray bottom and peripheral flange and removable partitions 28 may be provided. Spacing washers 15 are interposed between the trays and two or more pillars 12 may be detachably secured to a single base 10, the upper ends of a pair of pillars being connected if desired by a bar 18 serving as a carrying handle.
Patent GB-806240-A (GB)
Title: Monofluoroacetylene and polymers thereof
IPC: C08F38/00
Filed: 1957-08-27
Abstract: The invention comprises monofluoroacetylene and polymers thereof. The monomer may be prepared by the thermal decomposition of monofluoromaleic anhydride at temperatures between about 300 DEG  up to 1500 DEG  C. and above.  Suitable heat-exchange means, such as quartz, silica, glass and porcelain may be used, and the process carried out at atmospheric or preferably at a partial pressure of monofluoracetylene which is less than atmospheric pressure.  The monofluoroacetylene polymerizes spontaneously without added catalyst when the gas is stored in a glass container at ordinary temperature and pressure.  The polymer is a thermoplastic solid.ALSO:The invention comprises monomeric and polymeric monofluoroacetylene and a process for making the same. Monofluoroacetylene may be prepared by the thermal decomposition of monofluoromaleic anhydride at temperatures between 300 DEG  and 1500 DEG  C. and above.  Suitable heat-exchange means, such as quartz, silica, glass and porcelain may be used.  No catalyst need be present.  The process may be carried out at atmospheric pressure or preferably at a partial pressure of monofluoracetylene which is less than atmospheric pressure.  The latter may be accomplished by operating in a partial vacuum or by diluting the gas phase with an inert gas such as nitrogen.  An example is given of the preparation of monofluoroacetylene by heating the maleic anhydride in a quartz tube packed with quartz rings at 600 DEG  C. The monofluoromaleic anhydride used as starting material may be prepared from chlorotrifluoroethylene and vinylidene chloride by the following steps <FORM:0806240/IV (b)/1> in the presence of hydroquinone at 180 DEG  C., <FORM:0806240/IV (b)/2> in the presence of ethyl alcohol, <FORM:0806240/IV (b)/3> in the presence of phosphorus pentoxide.
Patent GB-826494-A (GB)
Title: Improvements relating to the protection of metals against corrosion
IPC: C23C22/08
Filed: 1956-09-05
Abstract: 826,494. Preventing corrosion. PETROCOKINO, D. D. Sept. 5, 1956 [Sept. 8, 1955; Oct 14, 1955], No. 27094/56. Class 123(1) Corrosion cf metal surfaces such as the interior surfaces of ship's ballast tanks is prevented by first passivating the surface by forming thereon a porous, crystalline layer by treatment with a phosphating medium containing non-saponifiable resins which are irreducible by hydrogen and subsequently preventing corrosion by cathodic protection. The phosphating agent may be an aqueous solution of phosphoric acid, zinc phosphate or manganese phosphate mixed with a resin such as vinyl copolymers, polystyrene or polyethylene and an inhibitor such as a chromate, vanadate or tungstate may be added. The formation of the porous phosphate film may be accelerated by addition to the seawater ballast of milk of lime with or without a wetting agent, a reducing agent such as sodium sulphite and a magnesium containing substance such as dolomite. The subsequent cathodic protection is provided by sacrificial anodes of magnesium, zinc or aluminium alloy.
Patent GB-694583-A (GB)
Title: A method and means for removing or stripping the insulating coverings or sheathings from electrical conductors, wires or the like
Inventor: GROTEFELD CHARLES HENRY FREDER
IPC: H02G1/12
Filed: 1950-11-07
Abstract: 694,583. Stripping cables. WOLD ELECTRIC TOOLS, Ltd. Nov. 7, 1951 [Nov. 7, 1950], No. 27236/50. Class 36. A device for removing thermoplastic insulation from wires comprises at least one heat conducting severing member 8 having a slot or aperture provided with at least one sharp edge and which is carried, or adapted to be carried, by the shank 2 of a heated tool such as a soldering iron. The device may comprise a clip 1 formed of sheet steel which is secured around the shank 2 and which has a projection 8. Alternatively, the part 8 may be integral with or brazed or welded to the shank 2. In a modified form the part 8 is formed with a sector-shaped aperture instead of or in addition to the notch. The wire to be stripped is inserted in the notch or aperture and rotated so that the insulation is softened and severed, and the device is then drawn towards the end of the wire to remove the severed insulation.