baber/WOPTO huggingface dataset:
Patent GB-659430-A (GB)
Title: Improvements in and relating to oven ventilation for ranges
IPC: F24C15/20
Filed: 1949-02-15
Abstract: 659,430. Ovens. BRITISH THOMSONHOUSTON, CO., Ltd. Feb. 15, 1949, No. 4135. Convention date, Feb. 21, 1948. [Class 126] The oven of an electric cooking range is provided with a horizontal flue from the oven, an L-shaped tubular vent stack part of which is in the form of a horizontal inverted channel communicating with the horizontal flue and a part of which is vertical and communicates with an opening in the cooking top surface beside the oven through which the whole stack may be withdrawn when disengaged. the vent stack being provided with a keyhole slot which engages with a shouldered lug on a vertical wall which supports the horizontal flue tube. The vent stack 22 is in the form of a tubular vertical portion 23 open at the bottom and attached to a horizontal inverted channel portion 24 which is fitted over a horizontal flue tube 32 fitted to the innerwall 7 of an oven and passing through the corresponding outer wall 28 of the oven. The vertical tubular portion 23 of the vent stack opens upwardly into a space between a grid 11 and a reflector 17 of one of two electrical cooking units 9 of the range. The lower part of the vertical portion 23 of the vent stack is closed by a removable cup 38 which receives condensed oven ,vapour and some' of the spillage from the cooking unit 9. The vent stack 22 and the cup 38 carried by it are supported on the outer wall 28 of the oven by engagement of shouldered lugs 31 formed on the horizontal portion 24 of the vent stack with keyhole slots 29 (not shown) in the outer wall 28 of the oven. The horizontal flue 32 is shouldered and flanged at one end so that it may be slipped into place in a hole 34 in the inner wall 7 of the oven 6. Each cooking unit 9 comprises sheathed tubular electric elements 10 mounted on a grid 11 which is supported by a ring 12 in an opening in the cooking top of the range. Beneath the grid 11 is provided a reflector 17 in the lower part of which is an opening to allow spillage to fall into a tray 46. In the case of the cooking unit below which the oven vent is mounted, a space 37 for the passage of spillage to the tray 46 is left between the reflector member 17 and the vent stack 23. Control switches are mounted on the rear splashplate of the range.
Patent GB-1530726-A (GB)
Title: Cantilevered roller separator in rock bit bearing
IPC: F16C33/46
Filed: 1976-02-03
Abstract: 1530726 Rock bit DRESSER INDUSTRIES INC 3 Feb 1976 [13 Feb 1975] 04221/76 Heading E1F A roller cone rock bit has each cone supported on a respective bearing pin by a set of cylindrical rollers 22 separated by complementally-profiled spacers 24 cantilevered from a split ring 25. The spacers can be of a different metal to the rollers and serve to prevent skewing of the rollers. Other details are as disclosed in Specification 1530375.
Patent GB-1034993-A (GB)
Title: Process for the production of synthetic resins
Inventor: WAGG THEODOR
IPC: C08J9/00
Filed: 1965-02-01
Abstract: Foamed synthetic resins, prepared from mono-, di-, or tri-methylol ketones, either directly according to Specification 978,532, or via the precondensates obtained by mild thermal treatment of the starting materials according to Specification 1,031,579, are rendered flame resistant by the inclusion of at least one fluorosilicates in the reaction mixture.  Na and K fluorosilicates are preferred, and in addition compounds such as urea or a urea formaldehyde resin which split off ammonia at elevated temperatures may be used.  The amount of fluorosilicate may be 3-4% by weight of the total composition.  In an example a polyethylene oxide foam regulator and CCl4 blowing agent are used.
Patent GB-1107734-A (GB)
Title: Heterocyclic acetylenic alcohols which exhibit estrogenic activity
IPC: C07D313/00
Filed: 1966-02-01
Abstract: Novel compounds of the formula <FORM:1107734/C2/1> wherein A is -CH2-CH2- or -CH=CH- and R is H, alkyl, aryl, bromoaryl, carboxylic acyl or aralkyl, the R groups being the same or different, may be prepared from the compound <FORM:1107734/C2/2> by treatment with liquid NH3 and potassium, and then acetylene or an acetylenic compound, optionally with a step of hydrogenating the -CH=CH- group and/or etherification or alkylation of the OH groups.  Therapeutic compositions having growth-promoting and estrogenic activity, comprise a compound of the first formula given above, together with a suitable diluent, and may take the form of a feed or an injection suspension, e.g. in peanut oil.  Reference has been directed by the Comptroller to Specification 951,349.
Patent GB-539441-A (GB)
Title: Process for preparing 21-aldehydes of the cyclopentano polyhydrophenanthrene series
IPC: C07J75/00
Filed: 1940-03-07
Abstract: 539,441. Cyclopentanophenanthrene-21- aldehydes. NAAMLOOZE VENNOOTSCHAP ORGANON. March 7, 1940, Nos. 4315 and 4316. Convention dates, April 6, 1939 and Aug. 2, 1939. [Class 2 (iii)] 21-Aldehydes of the cyclopentanopolyhydrophenanthrene series are prepared from the corresponding 21-halogen compounds by treatment with tertiary bases to form quaternary ammonium compounds followed by oxidation, with aromatic nitroso compounds preferably in the presence of acid binding means, and decomposition with acid of the intermediate compound so obtained. The presence of nuclear double bonds does not affect the reaction, and these may be present or not as desired. A parent material mentioned is the 4 : 5-dibromo-21-pregnandione-3 : 20 which splits off bromine during the process of the invention to give a #<SP>4</SP>: <SP>5</SP>-unsaturated compound. In cases where it is desired to oxidize a 3-hydroxy group to a keto group, the glyoxal group in the side chain is protected by acetatyzation. In examples (1) Bromo-21-pregnenolone, prepared from diazo-21-pregnandione by the process of Specification 500,767, is treated with pyridine in benzene solution, and the pyridinium salt so obtained is reacted with p-nitroso-dimethylaniline to give a red oil which is decomposed with sulphuric acid. (2) Chloro-21-progesterone is treated with pyridine in benzene solution followed by reaction with nitroso-dimethylaniline and decomposition of the nitron with dilute hydrochloric acid. Specifications 487,360 and 517,276 are referred to. The Specification as open to inspection under Sect. 91 contains also the subject-matter of Specification 539,368 together with a disclosure of the oxidation of pregnene-5-al-3-one- 20-al-21 to pregnene-4-dione-3 : 20-al-21. An example is included of the product of example (1) to pregnene-4-dione-3 : 20-al-21. This subject-matter does not appear in the Specification as accepted.
Patent GB-836137-A (GB)
Title: Dehydrating aqueous hydrazine with an auxiliary compound or compounds
Inventor: LEWIS RICHARD N
IPC: C01B21/16
Filed: 1957-02-08
Abstract: Aqueous hydrazine is dehydrated by distilling a mixture of the aqueous hydrazine and a cresol, a xylenol or any other substituted phenolic compound having the formula C6H5-nRnOH, wherein R is a methyl or isopropyl radical, or other non-reactive group, and n=1, 2 or 3.  The water distils off with some of the phenolic auxiliary compound; and a mixture of the dehydrated hydrazine and excess phenolic compound remains in the still.  The hydrazine may be separated from the excess phenolic compound by distillation, or by precipitation as a salt with sulphuric acid or hydrochloric acid. The process may be carried out continuously by adding the phenolic compound to the aqueous hydrazine, whereby an aqueous layer and an organic layer are formed, introducing the organic layer into the middle of a fractionating column, and withdrawing a mixture of dehydrated hydrazine and phenolic compound from the base of the column.  This mixture is then distilled in a second column, and hydrazine is withdrawn from the head of the column.  In an alternative procedure, the aqueous hydrazine is continuously introduced near the base of the first column, while the phenolic compound is charged near the top.  In an example, m-cresol (167 grm.) was added to 61 grm. of an aqueous solution containing 34 grm. of hydrazine; and the mixture was subjected to batch fractional distillation.  After removal of a fraction (18 grm.) containing no hydrazine, followed by a fraction (10 grm.) containing 37% of hydrazine, the main product was taken off between 113.5 DEG  and 119 DEG  C.-this product consisted of 29 grm. of 93% hydrazine.  Other phenolic compounds referred to are: carvacrol, thymol, pseudocumenol, mesitol, and guaiacol.  Reference has been directed by the Comptroller to Specification 792,195.
Patent GB-690984-A (GB)
Title: Improved method and means for floating concrete floors, roofs, and like suspended surfaces
Inventor: ANDREW GEOFFREY KEITH
IPC: E04B5/26
Filed: 1949-02-18
Abstract: 690,984. Concrete floors and roofs; metal joists. FLOORS, Ltd., S. A. April 14, 1950 [Feb. 18, 1949], No. 4553/49. Classes 20(ii) and 20(iv) In floating concrete floors, roofs, or other suspended surfaces, Fig. 8, the concrete F is run between wedge shaped precast concrete beams A freely supported at each end, permanent shuttering being provided by sheets D of plain or corrugated fibreboard, plastic, or metal, &c. which are secured to the undersides of beams A to provide a permanent under ceiling surface. In a lighter and stronger construction, Fig. 4, an initial layer of concrete is formed between sheets E and the sheets D, a second layer of lightweight concrete being built up over the beams A and over wooden, or metal lathing H which is sprung into the troughs of the sheets E and provides spaces G. The spaces G may alternatively be formed by introducing lightweight hollow blocks which also provide accommodation for heating pipes, &c. Reinforcing rods may be placed in the flooring parallel with the beams A. Metal joists A, Fig. 7, having reinforcing rods L, may replace the concrete beams or, the reinforcing rods may themselves constitute the joist in which case they are built into a metal structure by means of connecting struts which are welded to the rods at spaced intervals along their length.
Patent GB-912507-A (GB)
Title: Improvements in or relating to fillers or inserts for egg or the like cartons
IPC: B65D85/32
Filed: 1960-02-10
Abstract: 912,507. Fillers for egg cartons. KNAPP, R. Feb. 7, 1961 [Feb. 10, 1960], No. 4650/60. Class 18. A collapsible filler made of single ply cardboard for eggs comprises first set of transverse walls 2 arranged in spaced and parallel relationship and in interlocking engagement with incisions in a second set of longitudinal walls 3, with the incisions in the walls of the first set' composed of a bottom entry channel 11, a main channel 9 and an intermediate channel 10 with the latter two providing a ledge that slopes downwards towards the entry channel and the ledges serving to support the lower slotted parts 6 of the other set of walls after assembly of the filler, whereby the remote end of the main channel engages the upper Y-shaped slot 5. In another embodiment the intermediate channel may be made considerably wider than the main channel. The filler may be provided with a wrapper or enclosure to form a carton and the upper part of the wrapper may be provided, with viewing apertures or windows.
Patent GB-204641-A (GB)
Title: Improvements in ships' davit turning out gear
IPC: B63B23/18
Filed: 1923-02-17
Abstract: 204,641. Macarthur, A. Feb. 17, 1923. Davits.-In davit-sluing gear of the worm and worm wheel type, the worm wheel 1 is connected to the davit post 7 by a loose coupling comprising upstanding teeth on the worm wheel loosely engaging peripheral sockets 8 on a sectional collar 14 bolted to the davit post. The worm wheel and collar respectively bear against liners 12, 13 carried by the pedestal 6. With this arrangement the worm wheel 1 is not displaced relatively to the worm 2 if the davit is bent by the overhanging load within ordinary limits. The worm 2 dips in an oil well 10 fitted to the pedestal.
Patent GB-683143-A (GB)
Title: Improvements in and relating to high frequency electric induction heating apparatus
IPC: H05B6/36
Filed: 1950-02-23
Abstract: 683,143. Induction heating. GENERAL ELECTRIC CO., Ltd., and SMITH, R. Feb. 23, 1951 [Feb. 23, 1950], No. 4698/50. Class 39(iii) A single turn workloop 10, with current feed plates 12, has a protuberance 14 on each side of the slit 11 to provide a more uniform heating of a workpiece 13. Specification 621,081 is referred to.
Patent GB-608088-A (GB)
Title: Improvements in the manufacture of flanged tubular shells from sheet metal
IPC: B21D19/04
Filed: 1946-02-14
Abstract: 608,088. Flanging. SCOTTISH ENAMELLING CO., Ltd., WATSON, F. A., and SHAW, W. M. A. Feb. 14, 1946, No. 4742. [Classes 83 (ii) and 83 (iv)] Making tanks.-A flanged shell for tanks &c. is made by corrugating the edges of a sheet 13 flanging along the lines BB, CC and then bending the sheet to the desired form, the crimped edge portion expanding or contracting without fracture. The corrugating is effected by conical toothed rolls which form corrugations increasing in depth towards the edge of the sheet. A polygonal sheet is crimped locally at the points to be folded.
Patent GB-699405-A (GB)
Title: Improvements in or relating to photographic display devices
Inventor: SAUNDERS HUGH CECIL
IPC: G02B27/06
Filed: 1950-04-24
Abstract: 699,405. Viewing photographic transparencies. COLOURGRAPHICS, Ltd. July 24, 1951 [April 24, 1950], No. 4795/50. Class 98 (ii). [Also in Group XVIII] In a display device including a frame for displaying and supporting a coloured photographic transparency which consists of a screen having a large number of transparent lines of different colours in a regularly repeating geometrical pattern, and a monochrome positive transparency made from a negative which has been exposed through an exactly similar screen, means are provided for mechanically causing relative displacement between the multi-colour lines on the screen and the reproduced lines on the positive, whereby the registration of the screen and positive is altered to produce changes in the apparent colour of the photograph. The displacement may be transverse or angular. As shown in Fig. 1, the device consists of a box 1 having a front window and a removable lid 4. A masking plate 5, frames 6, 8 supporting the multi-colour screen 7 and the positive transparency 9 respectively and a light-diffusing screen 10, are mounted behind window 2 and in front of a pair of electric lamps 11. A reflector 13 is placed behind the lamps. Frames 6, 7 and the diffusing screen 10 are removably supported in grooves (not shown) and a spare set of frames with a transparency and a screen may be held in grooves 15 behind the reflector. The transparency 9 and screen 7 are held on their respective frames as by clips 16, Fig. 4, and the frames are held together, with the transparency and multi-colour screen in close contact, but capable of slight relative sliding movement, by screws 21 threaded into frame 6 and having spacing collars passing through slots 23 in frame 8, and by screws 24 with eccentric bosses fitting in slots 27, the screws 24 allowing for slight adjustments. Frame 6 has an opening of cruciform shape in which the screen 7 can be mounted with its longer dimension either vertical or horizontal, alternative positions being provided for the clips 16. Frame 8 can be mounted as shown, or can be turned through 90 degrees and mounted by means of a second set of slots 23a, 27a. An electric motor 12 drives, through reduction gearing, an eccentric 29 which engages a slot 30 or 30a in frame 8, which is caused to move relative to frame 6. As the screen 7 and transparency 9 are moved out of registration, the colour of the photograph changes. In a modification, the screen 7 is slidable in a frame, and a second frame carrying the transparency 9 in sliding contact with the screen can be moved away from the first frame to change the transparency and the screen.
Patent GB-1181063-A (GB)
Title: Improvements in or relating to Bearings
Inventor: MUNDAY ALAN JOSEPH
IPC: F16C32/06
Filed: 1966-02-04
Abstract: 1,181,063. Bearings. NATIONAL RESEARCH DEVELOPMENT CORP. 27 April, 1967 [4 Feb., 1966], No. 4892/66. Heading F2A. A "U"-shaped fluid bearing comprises an inner flexible wall 9, Fig. 3, an intermediate wall 14, which is spaced from the inner flexible wall 9 to form a plenum-chamber 13; and an outer wall 5, resilient spacing means 21 being provided between the outer wall 5 and the intermediate wall 14. The inner flexible wall 9 is secured to the outer wall 5 by spacers 11. The wall 14 is formed from a strip of rubber material having a cloth backing on its outer side and having pimples 15, Fig. 4, on its inner side. Marginal portions 17 of the rubber strip are provided without the pimples 15 to allow the rubber strip to be adhered to the inner flexible wall 9, the latter having holes 19 drilled therein. The outer wall 5 may be brass foil and the resilient spacing means 21 may be "open-cell" type synthetic plastics material. In use, pressurized fluid is supplied by means of a pipe 23 to the plenum-chamber 13, from where it escapes through the holes 19 in the inner flexible wall 9 and into a clearance provided between the latter and a shaft 1 mounted in the bearing. In an embodiment, a shaft 37 is supported by three circumferentially-spaced bearings 31, 33 and 35.
Patent GB-937704-A (GB)
Title: A process for the manufacture of aluminium nitride
IPC: G05D23/22
Filed: 1960-02-11
Abstract: <PICT:0937704/III/1> Aluminium nitride is made by cracking a gaseous saturated hydrocarbon or hydrocarbon mixture in contact with granular Al2O3 above 1200 DEG C. and bringing nitrogen at a temperature not exceeding 1750 DEG C. in contact with the Al2O3 and cracking products, a reaction according to the equation <FORM:0937704/III/1> taking place.  An excess of nitrogen may be used in the reaction and/or the amount of hydrocarbons cracked may produce at least sufficient carbon to convert all the oxygen content of the alumina to carbon monoxide.  Preferably the hydrocarbon mixture comprises methane, ethane, propane and butane.  Apparatus in which the above reaction may be carried out may comprise a cracking zone and a nitriding zone or one zone may suffice for both.  In the latter, hydrocarbons and nitrogen are brought into contact with Al2O3 simultaneously.  Air alone or enriched with water vapour may be added to the hydrocarbon mixture brought into contact with Al2O3. Preferably air is added in sufficient quantity to provide the required amount of nitrogen for the complete nitriding of Al2O3 and that the heat evolved by the exothermic reaction of the saturated hydrocarbon mixture and air is sufficient to balance heat lost in the endothermic nitriding reaction.  Fig. 1 shows a reaction chamber 12 in which a fixed bed of Al2O3 is contacted either <PICT:0937704/III/2> <PICT:0937704/III/3> consecutively or simultaneously with a mixture of hydrocarbons and nitrogen.  Gases including hydrogen, carbon monoxide and nitrogen leave chamber 12 through aperture 16 and may pass consecutively through heat exchanger 18 and burner 22 in so doing pre-heating gases which are to be charged to chamber 12.  Figs. 2 and 3 show modifications in which the Al2O3 is a moving bed and in a modification (not shown) the Al2O3 is present as a fluidized bed.  Specification 868,301 is referred to.
Patent GB-103908-A (GB)
Title: Improvements in Means for Delivering or Distributing Liquids at Various Temperatures in Refrigerating Apparatus.
Inventor: WARD HERBERT JOHN
IPC: F25C1/00
Filed: 1916-04-07
Abstract: 103,908. Ward, H. J., Carr, T. A., and Tilley, R. G. April 7, 1916. Shoots for returning spent brine e refrigerating systems are so constructed that they can be positioned for delivering the urine into any one of three separate storage tanks, according to its temperature. The shoot or troughs 6 have open ends, while the middle deeper parts of the sides 6a are in-turned as at 6<c>, so that they can rest on studs 5 on the delivery nozzles in any one of the positions shown
Patent GB-1022148-A (GB)
Title: Improvements in cartons
Inventor: TOONE REGINALD JAMES
IPC: B65D5/50
Filed: 1964-02-07
Abstract: 1,022,148. Boxes. ROSE BROS. (GAINSBOROUGH) Ltd. Jan. 29, 1965 [Feb. 7, 1964], No. 5244/64. Heading B8P. A rectangular-shaped box for displaying a toothbrush or the like is folded up from a blank having score lines 11 to make four side-panels 12-14, 16 and a sealing tab 17, with tuck-in flaps 18, 19, 21 at the ends, one of the tuck-in flaps having an extension 25, 26 which is folded back twice upon score lines 11 into the box so that a slit 27 forms a ledge to support the head of the toothbrush &c., Fig. 2 (not shown). A hole 15 in the side-panel 14 and partly in the side-panels 13, 16, through which the toothbrush &c. is displayed, has at its inner edge a tab 20 folded down towards the opposite sidepanel 12, two wings 23 on each side of the tab then lying along the side-panels 13, 16. A short slit 21 in the end of the tab 20 allows two small triangular flaps to be bent back along score lines 22, thus constituting a resilient support for the handle of the toothbrush &c. The box may be wrapped in transparent film.
Patent GB-248736-A (GB)
IPC: G01D11/16
Filed: 1926-02-24
Abstract: 248,736. Siemens &. Halske Akt.- Ges. March 7, 1925, [Convention date]. Zeroizing - mechanism. - Instead of a heart-cam a bent arm 4 is mounted on the pointed spindle 5 and is shaped and dimensioned to co-operate with a plunger 1 having two prongs of different lengths. The arm 4 can be returned to zero position by a rotation in either direction and finally is placed by the prongs in the position shown in Fig. 1<d>. Where two coaxial pointers have to be re-set, the plunger has prongs of considerable width, Fig. 3, to bear on arms 4, 4<1> fixed to collars 6, 6<1> attached to the respective pointer spindles.
Patent GB-177354-A (GB)
Title: Improvements in or relating to hollow bars, hollow shafts, rock drills and the like
IPC: B21B23/00
Filed: 1921-02-16
Abstract: 177,354. Brindley, C. V. Feb. 16,1921. Tubes.-Hollow bars, shafts, work drills, and the like are formed with a smooth bore by placing a mandrel inside an ingot having a clean hole, sealing the ends of the ingot by welding or other means, rolling down, cutting off the sealed ends and extracting the mandrel. The mandrel may be made of ferrous alloy or of a material not readily oxidized, and may be covered with oil or other material to prevent adherence to the ingot. Oil, or other material, or gases may be used to displace oxygen prior to sealing.
Patent GB-900319-A (GB)
Title: An improved clamp for securing workpieces to worktables
Inventor: MASON ARTHUR WILLIAM
IPC: B23Q3/06
Filed: 1959-02-18
Abstract: 900,319. Machine-tool details. MASON BROS. (JIGS & MOULDS) Ltd. Feb. 15, 1960 [Feb. 18, 1959], No. 5534/59. Class 83 (3). A clamp for securing a workpiece on a machine-tool table comprises two clamping members B, A, adapted to be bolted one upon the other on a table. The members have co-operating inclined faces 13, 5, and 15, 7, such that movement of the upper clamping member towards the table to apply vertical clamping pressure is accompanied by a horizontal pressure component. The end face 18 of the upper member is serrated to engage the workpiece and clamping is effected by a bolt and nut 11 which passes through an elongated hole 17 in the member B and down through a clearance hole in the member A. A further nut and bolt 8 passes through the end of member A to secure it firmly to the table.
Patent GB-339204-A (GB)
Title: Improvements in tweezers for use as fish boning devices
IPC: A47G21/10
Filed: 1930-02-19
Abstract: 339,204. Rossberg, L. Feb. 19, 1930. Tweezers, adapted to replace a fish knife to facilitate the removal of bones when eating fish, comprise a pair of jaws f with roughened surfaces, opened by pressure on concave, roughened finger pieces h, and supported on a handle e. A blade g is carried by one jaw. The device may be of stainless steel, or plated with nickel or silver.