baber/WOPTO huggingface dataset:
Patent GB-910111-A (GB)
Title: New metallisable and metalliferous heterocyclic mono-azo dyestuffs and their application to dyeing
Inventor: SUREAU ROBERT FREDERIC MICHEL
Filed: 1959-04-23
Abstract: 910,111. Metallisable and metalliferous heterocyclic monoazo dyes. COMPAGNIE FRANCAISE DES MATIERES COLORANTES. April 23, 1959 [April 24, 1958], No. 13798/59. Class 2(4). The invention comprises dyes of formula where A is a coupling component residue with OH ortho to the azo link, and their metal complexes. The dyes are made by conventional diazotisation and coupling and metallisation processes. A may be substituted by, e.g. halogen, alkyl, nitro, sulpho, carboxy, sulphonamide and carbamoyl groups and B may contain a halogen, nitro or methyl group. Metal complexes with less than one atom of metal per mol of dye are indicated. Cobalt, nickel, copper, iron, manganese and chromium are specified metals, cobalt and chromium being preferred. The dyes are used for colouring wool, silk, leather, animalised cellulosic fibres, superpoly-amides and -urethanes and organic solvents, lacquers, varnishes and cellulose ether and ester compositions. Examples are provided of the preparation of the dyes and their chromium and cobalt complexes and the use of the metal complexes to dye wool in a variety of colour shades. Representative of coupling components used in the examples are 1-m-chlorophenyl-3-methyl-5-pyrazolone, acetylacetanilide, 1-acetylamino-7-naphthol, #- naphthol and 3-hydroxy-thio-naphthene. Reference has been directed by the Comptroller to Specification 824,308.
Patent GB-770590-A (GB)
Title: Lipstick container with automatic ejector
IPC: A45D40/14
Filed: 1955-05-13
Abstract: 770,590. Lipstick holders. ALLEMAND, M. M. May 13, 1955 [May 14, 1954], No. 13886/55. Class 18. A lipstick holder 1 has a cup 5, to hold the lipstick 4, adapted to slide in the holder 1 to propel the lipstick from the holder, the cup 5 being provided with a longitudinally moveable bottom 6 retained in its normal position by a locking device releasable from outside the holder and biased by a spring 9 so that on release of the locking device the lipstick is ejected from the cup 5 by the movable bottom 6. The locking device comprises a leaf spring 16 fixed to the cup 5 and having a catch piece 15 which normally engages a projection 13 on the movable bottom. When the lipstick 4 is nearly used up a .pin 20 may be passed through holes in the holder, cup and bottom to force the catch piece 15 out of engagement with the projection 13. The spring 9 then acts to eject the remnant, a second projection 14 engaging the catch piece 15 to prevent the ejection of the movable bottom 6. On inserting a fresh lipstick the projection 13 slides down over the catch piece 15 to re-set the ejection device.
Patent GB-439489-A (GB)
Title: Improvements in abrasive lapping machines
IPC: B24B47/06
Filed: 1934-05-08
Abstract: 439,489. Lapping-machines. NEWALL ENGINEERING CO., Ltd., and SUMMERS, K. E., Old Fletton, Peterborough. May 8, 1934, No. 13891. [Class 60] In a machine for lapping flat or cylindrical surfaces and having hydraulically operated mechanism for raising and lowering one or both of the laps, the lap spindle a is rotatably carried in a sleeve b provided with a rack c engaged by a pinion d. A smaller pinion e, connected to the pinion d, meshes with a gear f connected to a pinion g, which is engaged by a rack h moved by pistons i in cylinders k ; the rack h is shorter than the rack c, and the gears increase the stroke of the sleeve b relatively to that of the pistons i, thereby allowing the use of a high-pressure pump of small capacity.
Patent GB-891438-A (GB)
Title: Improvements in drawing-off devices for flat knitting frames
IPC: D04B15/90
Filed: 1960-04-20
Abstract: 891,438. Knitting-machines. BOEHRINGER G.m.b.H. GEB. April 20, 1960 [April 27, 1959], No. 13902/60. Class 74 (2). A knitted article 5 is drawn off a flat machine in a horizontal direction by a roller 2 which then allows it to travel downwardly; and a projection 18, arranged in and to one side of the downward path of the article, tilts from the horizontal a bar 6 inserted through the leading welt of the article, to cause the bar to slide out of the welt under gravity. The roller 2 is rotated by a weight 17 acting through cord 7<SP>1</SP> and drum 7 and, in turn, it drives endless tapes 1, through pulleys 2<SP>1</SP> at the ends of, but of smaller diameter than, the roller, so that the peripheral speed of the tapes is less than that of the roller. The tapes bear hooks 8, which engage the welt bar 6 to draw off the article until the article engages with the roller surface, which is of plush, sandcloth, emery cloth, or the like. The article is then drawn off, at increased speed, by the roller and, passing round about a quarter of the roller's circumference, travels vertically downwardly until its welt bar (which has, by now, left the hooks 8 behind) catches by one end against the shoulder 18. Stripper arms 10, oscillated by a cam 15, periodically release the depending part of the article from the roller surface. A container 16, or conveyer belt, is provided.
Patent GB-143400-A (GB)
Title: Improvements in internal combustion engines
IPC: F02B75/28
Filed: 1919-06-02
Abstract: 143,400. Scott, D., and Smail, D. J. June 2, 1919. Regulating.-In an engine in which a piston F reciprocates in the interior of a piston 2, air is com. pressed in a crank chamber 3, and combustible mixture or a rich non-combustible mixture in the end 6 of the cylinder. The mixture is transferred to the combustion space through a passage 5 and port 4, and, when required, a diluting-charge of air is delivered from the crank chamber through the pipe 7, in which is located a cock 8 to control the volume of air transferred to the combustion space. Scavenging-air from the crank chamber enters the combustion space through ports 10 in the outer piston. The burnt gases escape through ports 9.
Patent GB-920237-A (GB)
Title: Improvements in or relating to electrical switches
IPC: H01H13/18
Filed: 1961-04-18
Abstract: 920,237. Retractive switches. BROOKFIELD IGRANIC Ltd. April 18, 1961 [May 31, 1960], No. 13936/61. Class 38 (5). A limit switch assembly comprises a plurality of push-button retractive switches mounted in a common casing and actuated by a common plunger through a bell-crank lever. As shown, the operating plunger 22 extends into an insulating housing 10, e.g. of phenolic resin, and carries at its end a pair of bushings 31, 32 urged apart by a compression spring 34 so that bushing 31 will engage the vertical arm of bell-crank lever 30 and bias it anticlockwise. The bell-crank lever normally engages the actuator buttons of three retractive switches such as 38 mounted side by side and maintains the switches in the position shown. On depression of plunger 22 against the bias of spring 26, the compression spring 34 expands and relaxes allowing bushing 31 to disengage the lever so that the switches can retract. Specification 886,253 is referred to.
Patent GB-378934-A (GB)
Title: Apparatus for generating ozone
IPC: C01B13/11
Filed: 1931-05-11
Abstract: <PICT:0378934/III/1> <PICT:0378934/III/2> <PICT:0378934/III/3> <PICT:0378934/III/4> Apparatus for generating ozone consists of an ozonizing unit disposed in the air flow from a fan, which flow increases towards its periphery, and in close proximity to the fan, the effective ozonizing surfaces being increased towards the periphery of the air flow in correspondence with the volumes of air delivered, in area or number of layers per unit area or both.  The electrodes may have spiral, volute, undulating grid, circular or similar forms and may consist of a plane surface or of a conoidal surface of revolution coaxial with the fan.  The unit itself may consist of a tube of dielectric material having internal and external conductors, the latter consisting of a wire wound round the tube. To obtain increased effectiveness towards the periphery of the air flow, the coils of the outer conductor may be wound more closely together, or the dielectric tubes may be spaced more closely together, as for example in Fig. 2.  Figs. 3, 4 and 5 show other suitable forms of electrodes.  Specification 372,947 is referred to.
Patent GB-661807-A (GB)
Title: Television film scanning apparatus
IPC: H04N5/16
Filed: 1949-05-25
Abstract: 661,807. Television. COPE, J. E., THEILE, R., and PYE, Ltd. May 16, 1950 [May 25, 1949], No. 13966/49. Class 40 (iii). The D.C. level in a film television transmission system in which the film is projected intermittently on to a picture signal generating tube is controlled by means of voltage pulses generated in a photo-electric cell which is positioned so as to be illuminated during the intermittent projection periods. In the arrangement shown the pulses produced by the photoelectric cell P are fed to a cathode-follower valve VI, the output from the cathode of which is arranged to charge a condenser C via a switching circuit including diodes D1, D2 which are rendered conducting by means of voltage pulses e1, e2 during the periods when the film is projected on to the picture signal generating device F. The voltage across condenser C which is proportional to the D.C. level, i.e. to the average brightness of each projected film picture, is fed to a direct current amplifier V2 the output from which is employed to control the D.C. (i.e. block) level in a subsequent stage.
Patent GB-881031-A (GB)
Title: Improvements in and relating to alloys
IPC: C22C19/05
Filed: 1960-04-21
Abstract: A wear-resistant alloy has the following percentage composition, by weight:-  .Cr.25 -30 .Co.8 -12 .Fe.10 -15 .W.5 -12 .Mo.5 -12 .C.0,8- 1,6 .Si.0 - 1,5 .Mn.0 - 2 .Ni.(at least 20) the remainder  The alloy may be used for castings and for hard-facing by welding.  It is particularly suitable for valve seats in I.C. engines.  The following alloys, stated to be known, are also referred to in the Specification:-  .Cr.30,5.29 .W.12,5.15 .C.2,5.2,4 .Si.0,4.0,6 .Mn.0,7.0,2 .B.0,1.- .Co.Bal.10 .Ni.2.Bal .Fe.3 max..7 max
Patent GB-560786-A (GB)
Title: Improvements in or relating to the production of highly polymeric organic compounds
IPC: C08G73/00
Filed: 1939-01-23
Abstract: Linear polymers of high molecular weight are prepared by heating a diamine with an organic compound containing only two reactive radicals, one of which is a carboxylic acid radical or amide-forming derivative thereof and the other of which is a radical having the formula <FORM:0560786/IV/1> , where R and R1 are each a hydrogen atom or a hydrocarbon radical, heating being continued until a product having film-forming properties is obtained.  The compounds employed are preferably those in which the reactive groups or radicals are linked by chains of methylene groups, and the total number of urea and carboxylic acid radicals in the starting mixture should be approximately equal to the number of amino groups.  Suitable reaction temperatures are 150 DEG -250 DEG  C., or more, and the reaction may be carried out under atmospheric or sub-atmospheric pressures. The products may be shaped into filaments, foils, films or the like. Examples are given of the preparation of polymers by heating:-(1) a mixture of hexamethylene diamine and the mono-urea derivative of caproic acid; and (2) the salt of hexamethylene diamine and the mono-urea derivative of valeric acid.
Patent GB-1505826-A (GB)
Title: Hydrocarbon conversion
IPC: C07C5/02
Filed: 1974-04-01
Abstract: 1505826 Hydrocarbon conversion using a catalyst on fibrous support IMPERIAL CHEMICAL INDUSTRIES Ltd 23 June 1975 [1 April 1974] 14285/74 Heading C5E A hydrocarbon feedstock is subjected to reforming, hydroisomerization, dehydrocyclization, selective dehydrogenation or selective hydrogenation by contact with H 2  and a catalyst comprising a Group VIII metal on a fibrous support comprising SiO 2 , Al 2 O 3  or ZrO 2  which has been prepared by fibrizing a sol or solution of a salt or other compound convertible to the material of which the fibre consists. The catalysts may contain 0À01-5 wt. per cent Pt, Ni, Pd, Rh, Ru, Os or Ir and optionally up to 5 wt. per cent Re. Sn and Ge. An example describes the reforming of a naphtha.
Patent GB-1353314-A (GB)
Title: Packaging means
IPC: B65D77/30
Filed: 1973-03-26
Abstract: 1353314 Readily-destructible packages GALENOPHARM SA 26 March 1973 [21 Dec 1972] 14327/73 Heading B8C A readily destructible package 1, adapted to contain a range of separate products, such as, e.g. a set of chemical reactants, comprises an outer casing 1 which houses a plurality of boxes 4, the latter and the casing 1 all being made of a readily-combustible material such as cardboard, or strong paper, and each box housing, or being formed as, a fluid-tight container having a rigid neck with an aperture and a stopper for sealing the aperture. The casing 1, which can be decorated and carry data, is formed by folding a blank, has a cover which can be sealed by an adhesive strip, and is provided with an encircling partly pre-cut, strip 2 having a pull-tab 3. As shown in Fig. 2, the upper part of the casing has been completely removed to expose six boxes 4 which are firmly retained in the lower part of the casing. Spaces can be placed between the boxes if the latter do not entirely fill the casing 1. Each box 4 has a bracing member 7 and a rupture line 5 which allows the upper corner 6, which may include data, to be folded up, or totally removed, to give access to the interior of the box 4. Each of the latter contains a fluid-tight, thin walled, plastics bag 10 having a rigid neck 11 which can be closed by a screw-cap 13 and which extends through, and is fixed to, the corresponding bracing member 7. The bag 10 and its stopper 13, can be made of high pressure polyethylene which can be readily destroyed by incineration.
Patent GB-769177-A (GB)
Title: Method for separating organic compounds from liquid mixtures
IPC: B01D36/02
Filed: 1955-05-18
Abstract: <PICT:0769177/III/1> A process for separating an organic compound from a liquid mixture comprises chilling the liquid to form a first slurry of crystals of the compound in residual liquid components, continuously passing a portion of the first slurry to an isothermal filter stage, continuously adding fresh feed stock to the first slurry to replace the amount withdrawn, separating the portion of the first slurry in the isothermal filter feed stage to yield a filtrate, which is discarded, and a second more concentrated slurry which is returned to the chilling zone for the first slurry to increase the concentration of the first slurry, and passing a further portion of the first slurry to a non-isothermal filter stage to separate it into a product filter cake and a filtrate.  A mixture of paraxylene and isomeric xylene is circulated in a pre-chilling stage comprising a pre-chiller A, a scraped surface chiller B and a crystal growing tank C.  From this stage feed stock is taken by a line 35 and circulated through a scraped surface chiller D and a crystal growing tank E to form the first slurry.  Slurry is withdrawn by a line 36 to an isothermal filter F where it passes through an annular space around a tubular member of filter cloth, mother liquor passing through the filter to be discharged by a line 37, while concentrated slurry is returned by a line 38 to the main body of slurry in chiller D and tank E.  Slurry is also passed by a line 40 to a non-isothermal filter G, which may be a basket centrifuge, where a product filter cake is obtained, filtrate being discarded or returned to tank E and/or tank C, together with filtrate from the isothermal filter F if desired. The product filter cake from filter G may be melted in a tank H and circulated through a chiller J and crystal growing tank K, a portion of the slurry being passed to a filter L where high purity para-xylene is obtained as filter cake, while filtrate is recycled to the pre-chilling stage.  In a modification the slurry which is passed by line 40 the second filter G, is passed through an additional growing tank before entering the filter.  The process may also be used to separate durene from an aromatic hydrocarbon fraction, cyclohexane from a naphthenic hydrocarbon fraction, benzene from an aromatic fraction, orthoxylene from a mixture with meta-xylene, and naphthalene from a hydrocarbon solution.
Patent GB-185172-A (GB)
Title: An improved gardening tool
IPC: A01C5/02
Filed: 1921-05-24
Abstract: 185,172. Porter, A. J. May 24, 1921. Planting-tools.-A dibble comprises two hollow conical portions, a, b, pivoted at c by the ears a<1> and having tongues a<2>, b<1> of uniform width and with straight edges. The handles e, d are riveted to the tongues and to the conical portions, the upper edges of which are substantially at right-angles to the handles, in order that foot-pressure may be used. The distance between the ears a<1> is preferably greater than that between the tongues a<2>, b'; and the point portion may be elongated parallel to the axis joining the pivots c so that a rectangular hole is formed on opening the two parts a, b. Reference has been directed by the Comptroller to Specifications 10504/18, 113,872 and 115,715.
Patent GB-208481-A (GB)
Title: Improvements in or relating to incubators
IPC: A01K41/00
Filed: 1923-05-31
Abstract: 208,481. Holloway, A., Holloway, A. T. L., and Holloway, F. G. May 31, 1923. Hatching-appliances.-An incubator is provided with a drawer f sliding in an opening d and so constructed that it closes the opening when the drawer is fully opened. The back of the drawer f is similar to the front so that it coacts with flanges n when the drawer is open, the extensions o of the drawer sides moving between the guides g, h to support the open drawer. The egg-tray j has a perforated bottom k with a movable section l to allow the chicks to pass into a compartment l<1>. A transport door t with a cover u gives access to the interior. Air from a heater in the compartment x passes over into the egg-chamber and down into the compartment l<1>, returning through a perforated portion a<1> to the compartment x. Ventilators b<1>, c<1> with a slide d<1> are provided. The thermometer p is carried on a movable frame q so as to be displaced by the back of the draweras it is opened.
Patent GB-475518-A (GB)
Title: Improvements in portable electric cleaning and polishing tools
IPC: A47L1/05
Filed: 1936-05-21
Abstract: 475,518. Cleaning and abrading brushes; reciprocating pumps. SUMMERS, A. V. May 21, 1936, Nos. 14407/36 and 11039/37. [Classes 19 and 60] [Also in Group XXVIII] A portable electric cleaning and polishing tool particularly useful in cleaning windows, floors and the like with liquids, comprises a motor 1, Fig. 1, directly driving a transverse shaft projecting at each end 2, 3, and a hollow handle 20 with a container therein for cleaning liquid together with a pump 27, Fig. 2, operated by a hand lever 31. Detachable pads 2 are provided at each end of the shaft and in place of one is a bracket 14 on the motor casing to which a stationary cleaning pad 12 may be attached. The bracket may be in line with the driving shaft or at an angle thereto, but so placed that a second rotary pad may be attached to the shaft after removal of the stationary pad. The pump comprises a spring- pressed piston 26 sliding in a barrel 19 and provided with a depending tube 27. There is a ball valve 28 at the bottom of the tube 29 and another ball 22 spring pressed at 30 leading to a hinged delivery tube 24.
Patent GB-543788-A (GB)
Title: Improvements in the control of synchronous electric motors
IPC: H02J3/42
Filed: 1940-09-23
Abstract: 543,788. Control of A.C. motors. BRITISH THOMSON-HOUSTON CO. Ltd. Sept. 2S. 1940, No. 14471. Convention date, Sept. 23, 1939. [Class 38(iii)] In a synchronous motor run up to near synchronism as an induction, motor with the field system 3 short-circuited through resistance 5, the resistance is removed and the field supplied with its D.C. excitation when the required minimum speed has been reached and at pre-determined favourable points in the slipcycle of the sub-synchronous operation in order to provide for the maximum pulling-in torque. The speed responsive means takes the form of an impedance relay 18 carrying an opposing torque voltage element which compensates for supply variations and is described in Specifications 512,361 and 530,122. At a speed corresponding to say 3 per cent. slip its contact arm moves relatively slowly between the contacts 28 and 30 under the action of the armature current pulsations. When the contacts 28 are opened continuously for a pre-determined time interval the operating winding 34 overcomes the holding winding 33 of a time-delay relay 32 (in which the time delay is determined by resistances and capacities across the two windings), and the relay 32 closes. This connects. the holding winding 14 of the. field switch 13 in series with the contacts 28 so that the circuits of the two holding windings are opened at the same points in the half-slip cycle when the motor is operating at the minimum speed at which it will effect the operation of the relay 32. The closing winding 15 therefore becomes effective, the field switch having an operating time about half that of the relay 32, to change over the field winding to excitation, with the resulting synchronization. The field switch, in closing, short-circuits resistances and condensers in the windings of the relay 18 thereby altering its characteristics to suit the reverse operation, i.e. the reversal of the field switch when the synchronous motor falls out of step. Specification. 530,123, [Group XXVII], also is referred to.
Patent GB-277265-A (GB)
Title: Improvements in or relating to air pistols
IPC: F41B11/647
Filed: 1927-05-30
Abstract: 277,265. Schmeisser, H. Jan. 25, 1927. [Convention date]. Pneumatic. -An air pistol having a tilting cylinder has the cylinder projecting rearwardly beyond the butt, the rear part co-operating with a cocking-lever mounted on the rear of the butt. As shown, the cylinder b is mounted to turn about a pivot j on the butt, and a cocking-lever h mounted to turn about a pivot g engages the piston d in the cylinder and causes the piston to be moved backwards to the cocked position when the rear end of the cylinder is turned down. The barrel c is hinged to the piston so that it can be turned down, as shown in Fig. 3, for loading. The sear has a projection s engaging the trigger.
Patent GB-180890-A (GB)
Title: Improvements in and relating to pulverizers and crushing mills
IPC: B02C13/26
Filed: 1921-05-25
Abstract: 180,890. Brettell, F. G., (Soc. Anon. Les Ateliers RÚunis). May 25, 1921. Impact pulverizers.-Relates to crushing-mills for pulverizing coal &c. and of the type in which the pulverizing hammers or tappets are arranged around the periphery of a disc rotating within a cylindrical casing, fan blades being provided on the disc to create a draught to force the pulverized fuel through a perforated ring surrounding the disc into a peripheral outlet. According to the invention, the hammers b on the periphery of the disc 1 are formed with their front or working faces c of greater area than their rear faces. A series of radial blades d, which may be straight, curved, or angular, are secured to the rear face a<1> of the disc and serve to pulverize finely the fuel broken up by the hammers b and to create a draught which carries the pulverized fuel through the annular screen 7 into a chamber 8 leading to a furnace &c. Coarser particles pass laterally through an opening 9 into the hopper opening 3.