baber/WOPTO huggingface dataset:
Patent GB-144386-A (GB)
Title: Improvements in artificial legs
IPC: A61F2/60
Filed: 1919-03-11
Abstract: 144,386. Nevin, J. March 11, 1919. Limbs, artificial.-A leg having joints at the knee and ankle is so arranged that the line passing through the centre of gravity of the body and the ankle joint passes slightly behind the knee joint so that the weight of the body tends to flex the knee, a spring limiting the amount of flexure. When preparing to sit, the spring is put out of action by hand. The foot is held to the leg by a cord having resilient connexions and cushions are fixed between the shoulders of the foot and the leg. The knee joint 15 is arranged forwards of the line through the centre of gravity of the body and the ankle joint 4, the tendency of the limb to bend when weight is put upon it being counterbalanced by the compression spring 16. The rod 17 rests upon the top of the spring ordinarily, but when the wearer desires to sit down, the rod is pushed inwards by the bolt 19, so that it is no longer resisted by the spring. In case of a below-the-knee amputation, the spring is outside the leg, as shown in Fig. 4, and is brought against a fork 25 on the leg by.a cord 23 attached to a bow 21, on the side irons. To bring the spring out of action, it is swung away from the fork 25. In the modification shown in Fig. 3, the part 29 of a bell-crank 30 carries a head which bears beneath the spring 26 in the walking position, and' is kept in place by a bolt 33 locking the bell-crank 30. To sit, this bolt is withdrawn and the bell-crank turned into the position shown by dotted lines. The ankle joint consists of a pin 4 working in a vertical slot, and the foot is held to the leg by the cord 9 which passes over a pin 10 and is tightened by nuts bearing against springs, as shown. Cushions 8 are interposed between the foot and leg portion.
Patent GB-379304-A (GB)
Title: Improvements in or relating to apparatus for the detection, indication and determination of carbon monoxide or the like
IPC: G01N31/22
Filed: 1931-02-26
Abstract: In a device for detecting the presence in the atmosphere of carbon monoxide or other gas, a roll of test paper 11 is enclosed in a container 5 and suitable lengths 17 are withdrawn through a slot 12 sealed by a block of rubber 14.  The strip 17 is placed in position over a window 16 through which light is transmitted from a lamp 6, and is further illuminated by reflected light from a mirror 19 fitted to the lid of the apparatus as shown in Fig. 5. The paper is moistened by means of the glass rod 10 with liquid from the container 8.  For purposes of comparison a fixed strip of paper bearing a grease spot may be placed over the window 16 <PICT:0379304/III/1> <PICT:0379304/III/2> beside the test paper 17.  Specification 341,269 is referred to.
Patent GB-471195-A (GB)
Title: Improvements in illuminated advertising devices
IPC: G09F13/00
Filed: 1936-03-02
Abstract: 471,195. Displaying. SCHMIDT, W. March 2, 1936, No. 6234. [Class 3 (i)] The effect of a luminous body which periodically changes its shape is produced by two coaxial cylinders 5, 11 of which the outer has a plurality of longitudinal slots and the inner a single slot extending from end to end. Removably fitted over the slots of the outer cylinder 5 are differently outlined members each having two opaque sides 22 connected across the outline edge by a white or coloured translucent wall of parchment, vellum, &c. When the slot of the cylinder 11 coincides with the slot of a particular profile on the outer cylinder, the two cylinders being rotated rapidly together. by a motor 1, the illumination of the translucent outer wall of the outlined member by an interior lamp 16 gives the effect of a luminous solid of revolution. In order to change the register of the inner slot with the outer slots at periodic intervals, the cylinder 5 is mounted on a sleeve 5a driven directly by the motor 1 and geared by wheels 8, 9, 10 to an inner sleeve 11a connected to the cylinder 11 by a spring-loaded pawl and toothed ring snap device 28, 48, 49, 50, or by like means. The gearing 8, 9, 10 causes the sleeves 5a and 11a to rotate at different speeds, thus gradually increasing the load on the spring 28 till it overcomes the resistance of the pawl 48. The opaque sides 22 may have open slots &c. which produce band-like and other effects, and extensions with lateral slots may be provided to produce an asymmetrical body, such as a onehandled jar. The cylinders 5, 11 have in addition short axially extending slots which at intervals are coincident to reveal stationary pictures &c. located near the lamp, thus giving the impression of a design &c. within the body of revolution.
Patent GB-863586-A (GB)
Title: Improvements in or relating to electric circuit networks
Inventor: BRABHAM HUGH BASIL SCHOFIELD
IPC: H03H7/21
Filed: 1957-10-21
Abstract: 863,586. Phase-splitting networks. GENERAL ELECTRIC CO. Ltd. Oct. 16, 1958 [Oct. 21, 1957], No. 6358/58. Divided out of 863,585. Class 40(8) An electric circuit network has a constant impedance independent of the frequency of an input signal and can be adapted to supply two output signals which are in phase quadrature and whose phases are dependent on the frequency of an input signal for incorporation in a tunable discriminator as is described in Specification 863,585. The network includes a first circuit consisting of an inductance 4 of L henrys and a resistance 3 of R ohms connected in series, a second circuit consisting of a resistance 5 of 2R ohms and a capacitance 6 of C/2 farads connected in series, and a third circuit consisting of a resistance 7 of 2R ohms and a capacitance 8 of C/2 ferads connected in series, the circuits being all connected in parallel and L, C and R being related by the equation L=CR<SP>2</SP>, means 1, 2 for applying an input signal across the three connected circuits, and means 9, 10 and 11 for deriving output signals respectively from across at least part of the resistance 5 of the second circuit and at least part of the capacitance 8 of the third circuit. If the frequency of the input signal is 1/2# CR the amplitudes of the two output signals are equal. Specific values of L, C, R and frequency are referred to.
Patent GB-1090434-A (GB)
Title: Butyrometer operating device
Inventor: HILLIER CHARLES NEVILLE
IPC: G01N33/06
Filed: 1964-02-17
Abstract: 1,090,434. Butyrometers. ASTELL LABORATORY SERVICE CO. Ltd. Feb. 17, 1965 [Feb. 17, 1964], No. 6434/64. Heading B1X. A device for facilitating the operation and reading of butyrometers consists of a block 13 for supporting the butyrometer, a pivotable block 22 with locking means for retaining the butyrometer in position, and a cam block 33 of tapering circumferential thickness on which a butyrometer key rests and which is pivotably movable by means of a handle 38 to slowly move the key upwardly to stretch the rubber bulb of the lock stopper in the neck of the butyrometer so that the fat content being tested rises in the elongated tube of the butyrometer which is viewable above the block 22 for reading against the background of an illuminated translucent plate 30. The supporting block 13 is arranged on two uprights 11 and 12, one of which acts as a stop for the cam block 33, and has a hollow tube 14, which has a drain hole 41 and a cup 40 to collect spillage, depending from it. The key 15 is slidably mounted in a sleeve 9 which surrounds the drain hole, vertical fingers 18 fixed to rings 7, 8 forming a removable cradle to support the key, and the tops of the fingers also supporting the butyrometer.
Patent GB-1268561-A (GB)
Title: Lubricating and fuel oil compositions
Inventor: MORRIS ARTHUR LESLIE
IPC: C10L1/14
Filed: 1969-02-06
Abstract: 1,268,561. Amine salts of cyclic dithiophosphate esters. ESSO RESEARCH & ENG. CO. 16 Jan., 1970 [6 Feb., 1969], No. 6437/69. Heading C2P. [Also in Divisions C4-C5] Hexylene glycol (i.e. 2-methyl pentane 2,4 diol) is mixed with t-alkyl primary C 12 -C 14  amine and added to a mixture of phosphorus pentasulphide and diluent oil. The mixture is heated to 140 C. for 30 minutes to form the amine salt of formula Similar compounds are prepared using pinacol or 2-ethyl hexane, 1,3 diol instead of hexylene glycol.
Patent GB-665563-A (GB)
Title: Improvements in or relating to aircraft altimeters
Inventor: GRANDIDGE JOHN EVERARD
IPC: G01L27/00
Filed: 1949-03-09
Abstract: 665,563. Pressure gauges. KELVIN & HUGHES, Ltd. March 7, 1950 [March 9, 1949], No. 6441/49. Class 106 (ii). In an altimeter of the type having an actuator responsive to pressure changes mounted in a movable housing and adapted to operate altitude indicating elements, and having also a pressure datum indicator, the said datum indicator and the altitude indicating elements are adapted to be set by means which ensure for any setting the correct relationship between the readings at any instant of the altitude indicator and the pressure datum indicator, said means comprising a gear train providing a linear driving connection for the altitude indicator, a second gear train providing a linear driving connection for the datum indicator and a third gear train incorporating a non-linear control over the second gear train. The capsules 3, Fig. 2, and the usual drive connection between them and the pointer carrying spindle 24 are mounted in a rotatable housing 1 which carries a gear-wheel 16. The spindle 24 supports at its top end three pointers 4, 5, 6 interconnected by suitable gearing. Integral with the gear 16 is a gear 17 which carries a plate 18 having a vertical pin on which two planet wheels 20, 21 are mounted. The wheels 20, 21 mesh with sun wheels 22, 23 carried by sleeves 22a, 23a, respectively. The sleeve 22a passes through the sleeve 23a and carries a pinion 25 which is in the gear train to a datum indicating counter 26. The sleeve 23a carries a cam follower 27 which co-operates with a cam 28 connected by gearing to the gear 17. The arrangement is such that when, during setting, the knob 13 is rotated the gears 16, 17 are rotated by the gear 15 and a linear movement is given to the pointers 4, 5 and 6 and a non-linear movement to the datum indicator 26.
Patent GB-669192-A (GB)
Title: Process for the dyeing of furs and skins
IPC: D06P3/30
Filed: 1949-03-19
Abstract: Furs and skins are dyed in a dye-bath which contains 10 per cent or more of a water-miscible aliphatic low molecular alcohol or ketone or ester or a mixture of these liquids.  Suitable liquids are ethyl alcohol, glycol, acetone and ethyl acetate.  The dyestuffs may belong to any desired group as, for example, azo dyes, triarylmethane dyes, anthraquinone dyes and complex metal compounds of azo dyes, many examples being given.  The ratio between the organic liquid and water may be adjusted only towards the end of the dyeing process, or the dyestuff may be added in stages, it being necessary only to ensure that the solubility of the dyestuff in the mixture existing at any moment is still sufficient.  An acid may be added to the dye-bath which may also contain a capillary-active substance, and the skins may be pre-treated, for example, by wetting them with the liquid mixture to be used in the dyeing.  The process is particularly suitable for dyeing sheepskins which have been treated to render them similar to furs as by the processes of Specification 505,487, [Group VIII], and French Specifications 759,162, 808,707 and 840,277.  In examples: (1) dressed sheepskins are dyed with the complex cobalt compound of the dyestuff from diazotized 4-nitro-2-amino-1-hydroxybenzene and 1-phenyl-3-methylpyrazolone from a bath containing formic acid, alcohol and water; (2) improved shorn lambskin is dyed in a bath containing the chromium complex of the dyestuff from 1-diazo-2-hydroxynaphthalene-4-sulphonic acid and 1-phenyl-3-methylpyrazolone, formic acid, acetone and water; (3) dressed sheepskin is dyed with a bath containing the dyestuff from diazotized 1-amino-2-nitro-4-methylbenzene and 3-methylpyrazolone, the chromium-aluminium complex of the dyestuff from diazotized 5 - nitro - 2 - amino - 1 - hydroxybenzene and 1-phenyl-3-methylpyrazolone, the chromium complex of the dyestuff from diazotized 5 - nitro - 2 - amino - 1 - hydroxybenzene and 2-hydroxynaphthalene, formic acid, the sodium salt of N-benzyl-m -heptadecylbenzimidazole disulphonic acid, alcohol and water; and (4) shorn lambskin is pre-treated in a bath containing alcohol, water and formic acid and dyed with a mixture of complex metal azo dyestuffs by adding a solution of the dyes in alcohol at intervals to the pretreatment bath.  The Specification as open to inspection under Sect. 91 comprises also the dyeing of wool and other animal fibres and includes an example of the dyeing of wool.  This subject-matter does not appear in the Specification as accepted.
Patent GB-917820-A (GB)
Title: Improvements in or relating to nuclear reactors
Inventor: COWEN HENRY CHAPMAN
IPC: G21C15/28
Filed: 1960-08-24
Abstract: 917,820. Nuclear reactors. UNITED KING- DOM ATOMIC ENERGY AUTHORITY. Nov. 24, 1961 [Aug. 24, 1960], No. 6489/60. Class 39 (4). Erosion of graphite moderator by carbon dioxide coolant is reduced by adding to the coolant hydrogen, carbon tetrachloride, monofluorotrichloromethane or methyl alcohol, the quantity of such inhibitor in the coolant being subject to control exercised externally of the reactor This quantity lies between 0.5 and 20% by volume according to the inhibitor used. Specification 874,487 is referred to.
Patent GB-1433582-A (GB)
Title: Treatment of waste water
IPC: C02F3/34
Filed: 1974-02-13
Abstract: 1433582 Fluidized biological purification of water ECOLOTROL Inc 13 Feb 1974 [16 Feb 1973] 6540/74 Heading C1C A process for removing organic carbon from waste water (e.g. sewage, organic containing liquids) to reduce BOD comprises: passing the waste water through a fluidized bed of a solid particulate carrier to which biota capable of oxidizing organic carbon are attached, the water in the bed containing sufficient oxygen to allow the biota to reduce the BOD of the water passing through the bed, and removing excess bacterial growth formed on the carrier during the process. The particle size of the carrier may be 0À2 to 3 mm. and its specific gravity at least 1À1. The oxygen required may be supplied by feeding in an oxygen-containing gas or oxygen.
Patent GB-859243-A (GB)
Title: Improvements in or relating to aryloxyaliphatic compounds
IPC: C07C59/68
Filed: 1959-02-25
Abstract: The invention comprises compounds of the formula: <FORM:0859243/IV(b)/1> wherein R1 represents an alkyl group containing no more than 4 carbon atoms, and the alkali metal, ammonium and amine salts of these acids and a process for their preparation by reacting a compound of the formula: <FORM:0859243/IV(b)/2> or an alkali metal, ammonium or amine salt thereof with a compound Q-R1 where one of the symbols P and Q represents a group OM where M represents an alkali metal atom and the other represents a halogen atom.  The compounds may also be prepared by reacting an alkoxy-methylchlorophenol with a halo-acetic acid or a salt thereof.  Examples describe the methoxy compound and its sodium, diethylamine and triethanolamine salts and the ethoxy compound and its sodium salt.  Specification 813,367 is referred to.ALSO:A plant growth regulating composition contains one or more components of the formula: <FORM:0859243/I/1> wherein R1 represents an alkyl group containing no more than 4 carbon atoms, and the alkali metal, ammonium and amine salts of these acids, in association with an inert carrier or diluent, the concentration of the compound or compounds being at least 0,5 p.p.m. of diluent or carrier.  The compounds may be employed in any of the usual solid or liquid forms and in the case of liquid preparations ionic or non ionic wetting, dispersing and emulsifying agents may be incorporated.  The plant growth modifications mentioned are accelerating the functioning of meristematic tissue, formation of new roots and production of parthenocarpic fruit, e.g. on tomatoes.  Examples of solid and liquid compositions are given.  Specification 813,367 is referred to.
Patent GB-749493-A (GB)
Title: Photographic objective
IPC: G02B9/34
Filed: 1954-03-08
Abstract: 749,493. Photographic objective!. ZEISSSTIFTUNG, C., [trading as ZEISS, C., [Firm of]]. March 8, 1954 [March 17, 1953], No. 6673/54. Class 97 (1). An objective consists of two negative meniscus components concave to a central diaphragm therebetween and enclosed by front and rear positive components, the rear negative meniscus being simple and having an axial thickness not greater than a half that of the front negative meniscus, and the front component being formed of two lenses of opposite power cemented together, the cemented surface being concave towards the diaphragm and having a radius of curvature smaller than that of either of the outer surfaces of the front component, and the positive lens of the said front component having a smaller dispersion than the negative lens thereof. Numerical data are given for two examples of the objective shown.
Patent GB-736363-A (GB)
Title: Water level control apparatus for steam generators
Inventor: WILSON STEWART
IPC: F22D5/08
Filed: 1953-03-11
Abstract: 736,363. Fluid-pressure servomotor-control systems. STEPHEN & SONS, Ltd., A. March 11, 1953, No. 6690/53. Class 135. [Also in Group XIII] Water level control apparatus for steam generators comprises a float chamber 1, Fig. 1, an inverted U-pipe 18 connected at one end to the upper part of the chamber and opening at the other end 20 at the high water level HWL in the generator steam space, a float freely movable in the chamber to follow the level fluctuations and contacting valve controlling means 7 in the upper part of the chamber when the level reaches HWL to cut off the feedwater supply at 24, and a down-pipe 28 connecting the lower part of the chamber to a lower water drum or drain connection 30. The float chamber is connected at its upper end by the pipe 18 opening at high water level HWL in a boiler 21 and at its lower end by a rising pipe 29, 33 opening at low water level LWL. A guided float 3, Fig. 3, counterbalanced by cables passing over pulleys 6 to a weight 5, operates a weight or spring-closed valve 8 through a lever 9 when the water level reaches HWL and a valve 11 through a lever 12 when the level reaches LWL. On the level closing the pipe 20, steam in the pipe 18 and top of the float chamber condenses so that the pipe and chamber are completely filled with water which passes through the valve 8, opened by the raised float, and pipe 23 to close a feed-water valve 24. When the level falls and opens the pipe 33, the level of the cooler denser water in the pipes 29, 28 quickly falls and allows steam to fill the pipe 18 and chamber 1 and pass through the valve 11, opened by the lowered float, and through pipe 16 to close a fuel valve 17. Cocks. 22, 32 allow separate .control of either HWL or LWL. In a second embodiment, two float chambers, each having an inverted U-pipe 18 and a common down-pipe, control the HWL and LWL respectively and may each be allowed to operate separately. Specifications 378,689, 661,134 and 685,400 are referred to.
Patent GB-1283663-A (GB)
Title: Method of packing stacks of flat articles into packages and framework used for effecting same
Inventor: DUCHINSKY YAKOV EFIMOVICH
IPC: B65B11/02
Filed: 1971-03-12
Abstract: 1283663 Packaging stacks of flat articles IZADATELSTVO IZVESTIA 12 March 1971 6739/71 Heading B8C In a method of wrapping stacks of articles such as newspapers a stack of newspapers 1 is placed on a lifting and lowering table 2, a web of paper 4 is drawn from a reel 3 over the stack, an inverted U-shaped frame 5, mounted on a chain conveyer 6, is located above the stack, and the table 2 is raised so that the web and stack are pushed into the frame to wrap the stack along its upper and two lateral sides. The free end of the paper web 4 is then folded up beneath the bottom face of the stack by a pusher 7 which is then retracted, and the paper web is then cut by shears 8. At this stage the conveyer 6 is started to move the stack over a plate 9 which causes the cut-off end of the web to be folded up under the bottom face of the package. The table 2 is then lowered to its initial position, the frame 5 and package being transferred to a station where the open ends of the folded web are closed against the ends of the stack by means of pairs of reciprocatable plates 11, 11 and 13, 13 and are glued together by means 15. A plate 20, which is vertically movable within the frame 5 to press the wrapping paper down on to the stack, has projecting tongues 19 which are vertically slidably accommodated in slots 18 in the sides of the frame.
Patent GB-525846-A (GB)
Title: Improvements in or relating to chair seats
IPC: A47C1/027
Filed: 1939-03-02
Abstract: 525,846. Back rests. CO-OPERATIVE WHOLESALE SOCIETY, Ltd., and GREY, J. T. March 2, 1939, No. 6780. [Class 52 (ii)] A backrest e is carried by spaced flat strips d<SP>1 </SP>which pass through slots in a rear extension l of the seat frame and through slots in a U- clamp m embracing and sliding on spaced strips j. The backrest can be raised or lowered and also tilted and a single tightening screw o holds the parts in their adjusted position.
Patent GB-287084-A (GB)
IPC: C10C1/06
Filed: 1928-03-05
Abstract: 287,084. Barrett Co., (Assignees of Miller, S. P.). March 14, 1927, [Convention date]. Condensing processes.-Tar is dehydrated by passing hot gases produced in coal distillation ovens or retorts into a body of tar maintained in a still or vessel which is not otherwise heated. The coal gases may be used at such temperature that the tar is also partly distilled, in which case the gases are passed through condensers to recover the vaporized oils which may be remixed with the dehydrated tar. The gases are brought into contact with the tar by injecting them through a perforated pipe 15 into the tar in a still 13. The carbonization and condensing plant is similar to that described in Specification 315,374. In the Specification as open to inspection under Sect. 91 (3) (a) the tar is also allowed to flow down inclined plates 43 in a tower 41, Fig. 6 (Cancelled), up which the hot gases pass from a pipe 44. In a modification the tar is sprayed into the tower 41 through nozzles 51. This subject-matter does not appear in the Specification as accepted.
Patent GB-1098845-A (GB)
Title: Method of preparing thermally stable insulating resins
IPC: C08G65/40
Filed: 1965-02-17
Abstract: Polymeric methylene diphenyl oxide compounds are prepared by (1) mixing together (A) 1 mol of a monomeric halomethyldiphenyl oxide wherein the number of halomethyl groups per diphenyl oxide moiety is from 0.6 to 3.0, (B) an amount of diphenyl oxide to provide a product functionally (Fn) \sE0.75 and (C) from 0.008 to 20% by weight of (A) and (B) of a condensation catalyst which is a Friedel-Crafts catalyst, silica, diatomaceous earth, bentonite, metallic chelates soluble in aromatic hydrocarbon solvents or p-toluene sulphonic acid, (2) heating the mixture of (A), (B) and (C) at a temperature gradually raised to somewhere between 50 DEG  and 250 DEG  C. for a time sufficient to indicate that all of the halogen has reacted, (3) stripping off any residual diphenyl oxide.  An additional step may comprise mixing together and heating the above reaction product and an essentially monomeric alkoxy methyl diphenyl oxide having a functionality Fmon and the general formula <FORM:1098845/C3/1> wherein Y is a C1- 4 alkyl radical and p has an average value of 0.8 to 3.0, the above product and the alkoxymethyl diphenyl oxide being present in a molar ratio about equal to the ratio <FORM:1098845/C3/2> wherein Fp is the functionality desired in the final product.ALSO:Dielectric twists made of No. 17 wire with a linear polyimide material are coated with a varnish made by reacting a chloromethyl diphenyl oxide monomer with diphenyl oxide in the presence of FeCl3.  6H2O as catalyst which product is stripped of excess diphenyl oxide and further reacted with methoxymethyl diphenyl oxide in toluene.  After baking for four hours at 200 DEG C, a smooth hard coating of a polymeric methylene diphenyl oxide is obtained on the wire.