baber/WOPTO huggingface dataset:
Patent GB-198764-A (GB)
Title: Improvements in rotating gas heated cylinders for drying or roasting grain and the like
IPC: A23N12/10
Filed: 1922-03-07
Abstract: 198,764. Sharp & Preston, Ltd., and Docking, A. March 7, 1922. Rotary containers; heating-fittings.-An apparatus for drying grain &c. such as described in Specification 131,456, comprising a rotary cylinder A<1> with a hollow axle B within which gas burners are arranged, is provided with a boncentric inner casing E connected by radial tubes G for the products of combustion to a jacket D surrounding the drum A'. The jacket D is lagged and has outlet apertures J.
Patent GB-197114-A (GB)
Title: Improvements relating to railway vehicles
IPC: B60F1/02
Filed: 1922-03-07
Abstract: 197,114. Palmer, W. C., and Ritchie, A. B. March 7, 1922. Road.and-rail wheels.-In a railway truck constructed with or without a bogie, each wheel is formed with a portion 10 and flange 11 for running on rails, and has on the inner side a flange 12 to support a rim carrying a rubber or like tyre. The rim and tyre are formed in two or more sections 13, 14 with abutting ends and are retained on the flange 12 by bolts or the like. In the construction shown in Fig. 6 the section 13 has pivoted near each end a lever 15 which is pivoted to the end of a link 16. A link 17 with hooked end 18 is pivoted to the link 16 which has a handle 19 carrying a bolt 20 forming a catch on the underside. Headed pins 21 on the section 14 are engaged by the hooks 18 when the two sections are together, and the catches 20 pass over and engage against the edges of the lever 15, assisting to retain the mechanism in a lucked position.
Patent GB-307076-A (GB)
Title: Improvements in or relating to pigeon lofts
IPC: A01K31/24
Filed: 1929-03-02
Abstract: 307,076. Backer, P., de. March 2, 1928, [Convention date]. Carrier and racing pigeons, apparatus for use with.-To hasten the entry of birds, such as pigeons, into a loft upon alighting at its entrance a downwardly inclined movable hand 2 is arranged to pass through the entrance below the swinging wires 3 forming the door. The movable band consists of an endless belt running on rollers 5, 6, and may be driven by motor or hand. The weight of the bird causes or assists its movement. A pawl and ratchet prevent backward movement of the band. The wires 3 when moved by the passage of the bird make contact with a frame 7 thus actuating a. signal.
Patent GB-350427-A (GB)
Title: Improvements in or relating to the preparation of resitols
IPC: C08L61/10
Filed: 1930-03-03
Abstract: Phenol-aldehyde condensation products.-Resitols, free from phenols, water and volatile bases, are obtained by heating, preferably repeatedly heating, solid initial phenol-aldehyde condensation products, in thin layers for a short time to elevated temperatures, and thereby converting the same partially into resites.  The conversion process is continued so long as the resitol formed can be shaped and converted into the resite phase. In an example, a solid initial product is brought on to a plate at 100-200 DEG  C., and rolled into a thin layer.  The operation is repeated till no more vapours are given off and the product becomes elastic on heating. The course of the reaction may be controlled by the degree of solubility of the resitol formed since the finely-powdered resitols are said to be in part soluble in alcohol, acetone or phenol. Formaldehyde and polymers thereof such as paraform or homologues of formaldehyde or hexamethylene tetramine may be added to the resols as hardening agents or novolaks may be used and the same converted into resols by hexamethylene-tetramine &c.  In another example a resol is heated on a mixing roller at 150-180 DEG  C., rolled out to 0,5 mm. thickness for 15-30 secs., and then rapidly removed from the roller. The operation is repeated till the powdered resitol contains 20-25 per cent soluble and fusible constituents, i.e. resols can be shaped by heat and pressure.
Patent GB-1577789-A (GB)
Title: Apparatus for producing plants
IPC: A01G31/04
Filed: 1977-02-18
Abstract: An installation for continuously growing plants which includes one or more growth chambers wherein alternate periods of lightness and darkness are provided, and the environmental conditions are controlled. The plants are individually supported, and transported through the growth chambers in such a manner as to require a minimum amount of handling. A diverging track system is provided in one of the growth chambers for handling the plants in a prescribed manner and guiding them through the chamber. As the plants are moved through such chamber, increased space is automatically provided for plant growth. The installation is well suited for growing plants hydroponically.
Patent GB-829488-A (GB)
Title: Improvements in or relating to electrode assemblies for electric discharge devices
IPC: H01J21/36
Filed: 1956-03-06
Abstract: 829,488. Discharge tubes. EGYESULT IZZOLAMPA ES VILLAMOSSAGI R.T. March 6, 1956 [March 16, 1955], No. 7076/56. Class 39(1). A unitary anode and grid structure comprises a plane.anode 2 coated with an insulating layer 3, and a metallic layer 4 provided on the insulation to form the grid. In the form shown, layers 3 and 4 have small registering holes 5, 8 so that only a small spot of the anode surface is uncovered. In another arrangement, Figs. 2 and 3 (not shown), the layers 3 and 4 do not cover the entire anode area but are formed as narrow U-shaped layers in register with each other. The layer 3 may be SiO 2 , Al 2 O 3 , or BeO, deposited by cataphoresis, vaporization, or from smoke. The layer 4 may also be formed by vaporization. Specification 829,487 and Hungarian Specification 142,508 are referred to.
Patent GB-525972-A (GB)
Title: An incendiary charge for incendiary shells, bombs and the like and a method of producing such charge
IPC: F42B12/44
Filed: 1939-03-03
Abstract: 525,972. Incendiary projectiles. CHEMA AKCIOVA SPOLECNOST and SKRABAL, E. March 3, 1939, No. 7093. Convention date, May 27, 1938. [Class 9 (i)]  An incendiarycharge element consists of a spontaneously ignitable core 1 hermetically enclosed in a thick-  walled cover 2, which is the incendiary charge proper. The core may be white phosphorous, zinc ethyl, or the like, and the cover is formed by dipping the core into celluloid solution, or solutions, a number of times. If the core be liquid, it may be first enclosed in a thin-walled casing of inflammable material, and then dipped as above. A hand-grenade comprises a number of incendiary charge rings formed as above, with an axial burster charge inserted through them.
Patent GB-610561-A (GB)
Title: Improvements in sextant-type instruments
IPC: G01C21/02
Filed: 1946-03-07
Abstract: 610,561. Sextants. DURKEE, W. B. March 7, 1946, No. 7095. Convention date, April 12, 1945. [Class 97 (ii)] In a sextant comprising a telescope for obesrving distant objects and having sighting means associated with the telescope for orientating the instrument on the distant object, the telescope and sighting means are mounted in a support for rotation independently thereof around the optical axis of the telescope and the sighting means include a light deflector adjustable about an axis perpendicular to the optical axis so as to direct light rays from the distant object into a path wherein they may be focused by the telescope. As shown, the support comprises a glass plate 21 which is adapted to be held in the observer's hands and to which is secured a bracket 22. The telescope 27 is mounted to rotate about its own axis in bearings 25, 26 carried by the bracket 22 and projects through a central aperture in the plate 21 so that the eye-piece 28 lies on the observer's side thereof. A graduated circle 39, the hour angle arc, is fixed to the telescope and cooperates with a vernier fixed to the plate 21. A mirror 32, adapted to reflect light from a celestial body into the telescope 27, is carried by a yoke 31, which may be adjusted about an axis 33 in arms 29, 30, fixed to the objective end of the telescope in accordance with the known declination of the celestial body. For this purpose an arm 34 fixed to a trunnion of the yoke 31 carries a vernier 35 adapted to move over a declination scale 36 fixed to the telescope 27. A clamp 38 is provided. A spirit level 41 is carried by an arm 46 which is angularly adjustable about a hub 47 in the bracket 22 and has an extension 48 carrying a vernier 49 co-operating with a latitude scale 44 fixed to the bracket 22. An adjustable mirror 491 is provided to enable the observer to see the level 41. Mirrors 42, 43, adapted to reflect two sections of the horizon into the telescope, are secured to a pivot shaft 52 mounted in an arm 53 fixed to the bracket 22-and are coupled by pulleys 54, 55 and wire 56 to the arm 46 so as to move therewith, but only through half the angle. In use, the telescope axis is parallel to the earth's axis when the arc 39 and verniers 35, 49 are appropriately adjusted and the celestial body and intersection of the horizon sections are aligned with the cross-hairs in the telescope. In a modification, the mirrors 42, 43 are pivotally mounted at the side of the telescope and the light therefrom is reflected into the telescope by a fixed mirror. In a further modification, an image of the spirit level is reflected into the telescope and an additional mirror, similar to the mirror 32, is provided to reflect an image of a second celestial body into the telescope. The additional mirror is adjustable independently in accordance with the declination of the second celestial body about an axis perpendicular to the telescope axis in a frame, which extends from a graduated circle adjustable about the axis of the telescope in accordance with hour angles.
Patent GB-1168022-A (GB)
Title: Wall Lighting Fitting for Sick Rooms, Hospital Wards and the like
IPC: F21V33/00
Filed: 1968-02-14
Abstract: 1,168,022. Latches; separable hinges. TRILUX-LENZE K.G. 14 Feb., 1968 [20 Feb., 1967], No. 7199/68. Headings E2A and E2F. [Also in Division F4] A hospital lighting fitting (see Division F4) comprising an elongated casing containing lights and miscellaneous electrical tapping points is constituted by upper and lower chassis, the upper chassis being connected to the lower chassis at one end by a disconnectible hinge and at the other end by a releasable fastening. The disconnectible hinge comprises a fitting 120 attached to the lower chassis 110 having two side walls which are angled towards each other and are slotted as shown to receive a hinge pin 221. The hinge pin 221 is transversely mounted in two parallel side walls constituting a fitting 220 depending from the upper chassis 210. The side walls of the fitting 220 are spaced wider apart than those of the fitting 120 so that when the hinge is assembled the fitting 220 surrounds the fitting 120, Fig. 10 (not shown). The releasable fastening comprises a spring- loaded hinged fastener 132 mounted between two closely spaced parallel plates 131 carried upon the lower chassis 110 and a plastics guide bush 231 fitted within the upper chassis 210. In the closed position the bush 231 bears down on a step 238.
Patent GB-637622-A (GB)
Title: A new process for the manufacture of lead silicate
IPC: C09C1/14
Filed: 1948-03-09
Abstract: Hydrated lead silicate suitable for a paint pigment is made by grinding a mixture of lead monoxide or hydroxide with silicic acid, preferably in a freshly precipitated gelatinous state, in water in the presence of an acid catalyst such as acetic, formic or nitric acid.  The proportions are preferably such that the whole of the lead enters into combination and the final product may or may not contain a substantial amount of uncombined silica. The liquid is removed by centrifuging or filtering and the hydrated lead silicate dried, or if desired heated prior to use as a pigment, to about 250 DEG  C. to remove some or all of the water of hydration.  0.5 per cent by weight of sulphuric acid, in addition to the acid catalyst may be added before, during or after grinding to prevent caking.  Warming the mixture to 100 DEG  C. after preliminary grinding accelerates the reaction.
Patent GB-628290-A (GB)
Title: Improvements relating to oil burning devices
IPC: F23D5/00
Filed: 1947-03-17
Abstract: 628,290. Liquid-fuel burners. TEISEN, T. March 17, 1947, No. 7283. [Class 75(i)] Fuel oil is supplied to the combustion region of a furnace by means of a distributing device in the form of a conical or like weir 1 which receives, from a pipe 3 at its apex, oil which falls as drops from its lower edge. The lower end of the pipe 5 fits over the end of the weir 1, which may be smooth or has spaced channels formed on its surface, and has three lugs 2 resting on the end of a vertical conduit 8. The channels may gradually increase in depth from the apex downwardly and depending projections 7 may be formed at their lower ends from which the oil can drip. The latter has an end closure 4 supported by straining wires 14 on a ring structure 12 secured by rods 11 to uprights (not shown). The fuel oil is gravity fed and the supply is controlled either by a valve or by varying the height of a supply funnel at the end of the pipe 3.
Patent GB-251738-A (GB)
Title: Improvements relating to centrifugal separators
IPC: B04B15/06
Filed: 1925-03-18
Abstract: 251,738. De Laval Chadburn Co., Ltd., and Bamford, A. C. March 18, 1925. Cream separators and like machines for separating liquids from one another, or from solids by density.-The separator has a platform or platforms extending horizontally from the frame of the machine and adapted to support the disassembled parts of the separator for cleaning purposes. As shown, the machine is provided with a projecting girder structure with two angular rail-shaped irons 2 on which the bottom part of the bowl may rest with its axis horizontal to facilitate cleaning. A lifting handle 3 may be provided on the bowl. The hood, top disc and distributor are placed in the vessels 4, 5 which have spouts 4a, 5a through which liquid drips into a pail 6. The supports may be rotatably connected to the frame so as to fold up when not in use.
Patent GB-233101-A (GB)
Title: Improvements in and connected with water tube boilers
IPC: F22B17/10
Filed: 1924-03-22
Abstract: 233,101. Babcock & Wilcox, Ltd., (Deutsche Babcock & Wilcox Dampfkessel- Werke Akt.-Ges.). March 22, 1924. Water-tube boilers. - Relates to a water-tube boiler having uptake headers b extended upwards and connected to the ends of the steam drums by short straight nipples f expanded through openings in front walls of the headers and consists in arranging the steam drums in different planes. The steam drums d, e are arranged alternatelvat different levels and are connected to alternate pairs of headers, all of which are placed closely together. The drums. are. connected together at the front and back by tubes h, i. A feed-box m is connected to the lower steam drums.
Patent GB-609248-A (GB)
Title: Improvements in filters or strainers
IPC: B01D29/00
Filed: 1946-03-08
Abstract: 609,248. Filters. HOUCHIN, R. W. March 8, 1946, No. 7345. [Class 46] A filter for liquids is provided on the discharge side of a stationary filtering element with numerous stationary collecting compartments connected to the discharge conduit for the filtrate, means being provided for enabling a reverse flow of filltrate to be effected successively through each of the compartments or through groups of compartments to effect a cleaning of the filtering element. In the arrangement shown a filtering element 4 is secured by a clamping ring 6 across the open side of the hollow casing 1 which is divided into compartments 2 by radial webs 3. The ring 6 has webs 10 corresponding to the webs 3. Filtered liquid flows through radial passages 26 in the compartments 2 to a collecting chamber 27 within which is mounted a rotary valve 29. Some of the filtered liquid is pumped from the chamber 27 and through an outlet 28 and delivered through an opening 34 into the interior of the rotary valve 29 and flows through two radial holes 30 and radial passages 26 whereby the compartments 2 are in pairs successively subjected to return flow of filtrate for the cleansing of the filtering element 4. An electric motor may be provided to drive two pumps, one for supplying liquid to the filters and the other for the reverse flow of filtrate, and also to effect the rotation of the valve 29. According to the Provisional Specification. the filter element may comprise fibre mesh sandwiched between two horizontal perforated plates and the valve may be a rotary or slide valve.
Patent GB-684064-A (GB)
Title: An improved ozone generator and air recirculator
Inventor: BECKETT STANLEY URWYN
IPC: C01B13/11
Filed: 1951-03-29
Abstract: 684,064. Unit air conditioners. PLUMBERS, Ltd. March 29, 1951. No. 7538/51. Class 137. [Also in Group XL (a)]. A unit air circulating and ozonizing apparatus comprises a housing in which is mounted a fan which draws air in through a filter and discharges it mainly through outlets to the atmosphere, a small part of the flow being diverted through a heater and ozone generator and then returned to rejoin the main flow. In the form shown, the unit consists of a housing 1 in the bottom of which is mounted a filter 5 of glass wool or the like. Mounted above the filter is a fan 12 which discharges air sucked through the filter mainly through openings controlled by louvres 13a, a small part of the air passing up through openings 19 into an annular chamber 22, where it is heated by heating coils 26 to lower its relative humidity. The air from chamber 22 then passes through the ozone generator, which consists of layers of aluminium or cadmium plated brass mesh 30, separated by silica or glass plates 29, the assembly being held between conical plates 17 and 23. Alternate layers of the mesh are connected to opposite poles of the secondary winding of a high voltage transformer 34, so that, in operation, a silent discharge occurs between them with generation of ozone. The ozonized air passes through openings 32 and 18 to rejoin the main flow of air. The voltage applied across the ozone generator gap can be controlled by a regulator 38.
Patent GB-765638-A (GB)
Title: Improvements in or relating to rolling plant
IPC: B21D1/00
Filed: 1955-03-15
Abstract: 765,638. Rolling. UNGERER, F. March 15, 1955 [April 22, 1954], No. 7448/55. Class 83 (4). Opposed wedges 5, 6, Fig. 1, locked under a bevelled foot 2 of a rolling mill screw-down are made quickly releasable to relieve the screwdown pressure. The wedges are slidable on the bearing-block 8 and are locked by a pair of links 10 pivoted to the wedge 5 and carrying a pivoted plate 12 which engages the end of the wedge .6 and is slightly offset so that it remains in position. To release the wedges the plate 12 is lifted above its dead-centre by a wedge 14 slidable along a groove 15 in the bearing-block 8.
Patent GB-349166-A (GB)
Title: Improvements in oil switches of high interrupting capacity
IPC: H01H33/12
Filed: 1930-03-07
Abstract: 349,166. Oil switches. ELIN'AKT.- GES FœR ELEKTRISCHE INDUSTRIE, 1, Volksgartenstrasse, Vienna. March 7, 1930, No. 7497. Convention date, March 9, 1929. [Class 38 (v).] Oil switches, of th kind in which the circuit is first broken at main contacts c, a and broken finally at sparking contacts d, e in parallel with the first and located in explosion chambers b, have the fixed main contacts of circular form surrounding the sparking contacts and preferably concentric with them. In the constructi n shown, the fixed contact consists of a set of annularly arranged spring - mounted contacts secured to the leading-in tubular conductor f which is of large diameter to increase its conductivity to alternating current. The explosion chamber b may be secured to the leading-in conductor and carry auxiliary contacts of the same type as the main contacts. The movable contacts consist of a small central plug d constituting the auxiliary contact and a larger plug c constituting the main contact. In a modification, the fixed main contacts are secured to the leading-in tube and are substantially of the same diameter as the tube; the explosion chamber, of smaller diameter, is secured to a plate mounted in the end of the tube. The fixed contact may be of larger diameter than the leading-in tube.
Patent GB-944000-A (GB)
Title: Improvements relating to the refining of lubricating oils
Inventor: DEMEESTER JACQUES
IPC: C10G45/08
Filed: 1962-02-27
Abstract: A hydrofining process for producing lubricating oils having improved colour and oxidation stability comprises treating the oils with hydrogen at elevated temperature and pressure, for example 150-370 DEG  C. and 5-80 atmos., in the presence of a catalyst consisting of the oxides of cobalt and molybdenum incorporated with a mixture of iron and magnesium oxides prepared by coprecipitation.  The preferred hydrogen feed rate is 5-150 v./vol. and the preferred oil feed rate is 0.5-6 v./vol. catalyst/hr. The iron oxide content is preferably at least 10% wt., the ratio magnesium oxide : iron oxide in the region 2 : 1, and the ratio molybdenum oxide : cobalt oxide at least 3 : 1. In an example, the catalyst is prepared by pouring a boiling solution of ferric nitrate and magnesium sulphate into a boiling solution of caustic soda, filtering, washing, drying, calcining, and granulating, pouring ammonium molybdate solution over the granules and drying, impregnating twice with cobalt nitrate solution, drying and calcining.  Specifications 913,047, 913,048 and 943,998 are referred to.
Patent GB-807641-A (GB)
Title: Improvements in or relating to the control of alternating current slip ring motors
IPC: B66C13/26
Filed: 1954-03-16
Abstract: 807,641. Control of A.C. motors. WEST & CO. Ltd., A., and STACEY, J. R. June 8, 1956 [March 16, 1954], No. 7601/54. Drawings to Specification. Class 38 (3). The subject-matter of this Specification is substantially the same as that described in Specification 807,642 but the claims relate to a control system for a slip-ring motor in which dynamic braking of the motor is effected by injecting direct current into the motor primary circuit, wherein means are provided whereby when increasing the torque of such dynamic braking (say by reducing the resistance in the secondary circuit of the motor), the increase of said torque is subject to a delay which is greater or less according as the deceleration of the motor is less or greater and, therefore, according as an overhauling load is greater or less, so that a runaway condition under the influence of such overhauling load is ensured against, said delay being ended in response to the dropping-out of a relay having its energizing winding connected to the secondary circuit of the motor.
Patent GB-902693-A (GB)
Title: Rh blood typing serum
IPC: C07K16/34
Filed: 1960-03-03
Abstract: Rh0(D) testing serum is produced by washing the blood cells of macacus fuscatus with physiological saline solution, injecting the washed cells into one or more rabbits, goats or guinea pigs, collecting the blood of these animals, separating the serum, inactivating the serum by heating and absorbing the thus inactivated immune serum with a vehicle acceptable to Rh0 negative (d) antigen. Inactivation of the serum may be by heating at 50 DEG  to 60 DEG  C. for 1/2 hour.  The serum is then adsorbed on saliva, the product obtained by treating saliva with alcohol, or an Rh0 negative (d) human blood, e.g. ccdE and ccde blood.  The testing of human blood by means of the above serum to determine whether the blood is rhesus positive (agglutination with serum) or rhesus negative (no agglutination with serum) may be done over the range 15 DEG  C. to 37 DEG  C.
Patent GB-154831-A (GB)
Title: Device for preventing the slackening of screwed-up strings in stringed instruments
IPC: G10D3/14
Filed: 1920-03-15
Abstract: 154,831. Richter, J. March 15, 1920. Stringed instruments, tuning-pins for. - The screwed-up pin of a stringed instrument is prevented from turning backwards by the action of a brake lever which is operated by the string passing over it. Fig. 1 shows a guitar or mandolin, and Fig. 3 shows details of the pin and brake lever. A pulley i secured to the pin c is pressed upon by a brake lever k which is pivoted at l, and carries a pin m pressed upon by the string.