baber/WOPTO huggingface dataset:
Patent GB-454033-A (GB)
Title: Improvements in furniture supports
IPC: A47C3/021
Filed: 1935-04-27
Abstract: 454,033. Supports for furniture. BOSKER, B., 77, Alric Avenue, New Malden, Surrey, April 27, 1935, No. 12692. [Classes 52 (i) and 52 (ii)] A furniture support consists of a C-shaped runner 1, which is connected to the underside of a chair &c. by keyhole slots 3 and stud plates 4. Preferably, the strip 1 is of steel with beaded, rolled, or upturned edges. In modifications, the ends 2 are supported by telescopic or other struts, or are extended inwards so as to bear on the middle of the strip 1.
Patent GB-129151-A (GB)
Title: A New or Improved Mechanical Travelling Toy.
Inventor: HUTTON ROBERT WALTER
IPC: A63H23/02
Filed: 1918-08-06
Abstract: 129,151. Hutton, R. W. Aug. 6, 1918 Mechanical toys.-Relates to a wind-propelled toy adapted to travel on a stretched cord. A sheet-metal or like boat 1 is fitted with a longitudinal shaft 4 carrying pulleys 2 which rest on the cord 3. A sail 7 is supported by a wire frame 8 pivoted on a vertical rod 9. The frame is kept at the required angle by engagement with recesses 10 in the sides of the boat. By adjusting the sail, the boat can be caused to travel backwards or forwards, with the wind in the same direction. The boat may be caused to travel by raising one end of the cord.
Patent GB-471384-A (GB)
Title: Improvements in mechanically coupled dynamo electric machines
IPC: H02K7/20
Filed: 1936-05-06
Abstract: 471,384. Dynamo-electric machines. ENGLISH ELECTRIC CO., Ltd., and BINNEY, E. A. May 6, 1936, No. 12792. [Class 35] A dynamo-electric machine,' such as a lighting generator 1 on an electric vehicle, has an axial hollow portion, e.g. a hollow commutator or slip-ring hub 2 at one end of the rotor, and a considerably smaller dynamo-electric machine 4, e.g., a speedometer generator assembled as a complete and independent unit is mounted by securing one end 4a of its frame to the end frame 1a of the larger machine, so that the small machine projects axially into the hollow part of the larger one and is driven by a coupling member 7 on the spindle engaging some part of the interior of the larger rotor. The coupling shown is a fiat strip with its ends bent over at 7a to engage slots 8 in the rotor spider 3 so as to allow the two machines to be slightly out of line and, further, to allow the small machine to be removed and replaced easily.
Patent GB-742079-A (GB)
Title: Process for manufacture of a granular perborate having a small bulk density
IPC: B01J2/00
Filed: 1953-05-08
Abstract: Granular alkali metal perborates, especially those of sodium and potassium, with reduced bulk density are prepared by forming from perborate crystals having an average size of at most 0.1 mm., an aqueous paste of such water content that it is not capable of flowing, then breaking down the paste to pieces capable of passing through a sieve of 1.5 mm. inside width, and finally drying the pieces in known manner.  The starting perborate crystals may suitably be prepared by reacting hydrogen peroxide of at least 10 per cent concentration with a metaborate solution of at least 35 per cent concentration in such amounts that the calculated concentration of the crystallizable perborate in the resulting solution amounts to at least 10 grams per litre. According to an example, a 40 per cent sodium metaborate solution containing colloidal magnesium silicate was treated with a 20 per cent hydrogen peroxide solution and the resulting crystal paste was cooled to 4 to 12 DEG C and the mother liquid sucked off.  The maximum grain size was 0.006 mm.  The paste was then washed with water to leave a paste with a 42 per cent by weight water content. The paste was then pressed through a sieve of 1.5 mm. inside width and the resulting granules air dried.  After drying the granules were again pressed through the sieve.  The bulk density was 430 grams per litre.  The moist crystal paste may if necessary be dewatered to the required degree, normally to a 40 to 45 per cent by weight water content, by washing the paste with a water soluble organic solvent such as methyl alcohol, ethyl alcohol or acetone.  Stabilizers such as magnesium silicate referred to above, sodium stannate, metastannic acid, nitric gel or ethylenediamine tetracetic acid, nitrilotriacetic acid their alkali metal salts may be added to the perborate.  If desired the dried perborate granules may be heated from 40 to 80 DEG C to further reduce the bulk density by removing water of crystallization.
Patent GB-1499533-A (GB)
Title: Dewaxing waxy petroleum oil stocks
IPC: C10G73/06
Filed: 1975-03-27
Abstract: 1499533 Dewaxing oils EXXON RESEARCH & ENG CO 27 March 1975 12868/75 Heading C5E Wax is separated from a waxy petroleum oil stock by introducing the oil stock, at a temperature above its cloud point, into a cooling zone, the oil containing at least a portion of the wax dissolved therein, contacting the oil as it passes through the cooling zone with at least one solvent at a time of a dewaxing solvent system comprising two or more solvents of different polarity, the more polar solvent being less miscible with the oil than the less polar solvent, the solvents being introduced into the cooling zone in incremental amounts, adjusting the composition and amounts of solvents and gradually reducing the temperature in the cooling zone thereby producing therein a plurality of temporary periods of bulk immiscibility between the solvent system and oil interspersed with temporary periods of bulk miscibility between the solvent system and oil, cooling and agitating the oil and solvents as they pass through the cooling zone, thereby precipitating at least a portion of the wax from the oil and forming a solvent/oil mixture containing precipitated wax from which the oil of diminished wax content is recovered. The waxy petroleum oil stock may have a viscosity greater than 100 SUS at 210‹ F. with more than 10% thereof boiling above 800‹ F. and more than 50% boiling below 1150‹ F. Suitable solvent systems are toluene/benzene/acetone, benzene/acetone, methyl ethyl ketone/toluene, acetone/methylisobutyl ketone, methyl ethyl ketone/methyl isobutyl ketone, propylene/acetone and ethylene dichloride/ dichloromethane. The solvent components may be premixed or introduced individually into the cooling zone. The stock may be subjected to a predilution process with the dewaxing solvent prior to the cooling process to depress the cloud point of the oil.
Patent GB-121137-A (GB)
Title: Improvements in or relating to the Manufacture of Pipes or Tubes from Cementitious Material in Sheet Form.
Inventor: WARREN WALTER PELHAM
IPC: B28B21/48
Filed: 1916-09-12
Abstract: 121,137. Warren, W. P. Sept. 12, 1916. Moulding pipes and tubes.-In the manufacture of pipes and tubes from cementitious material in sheet form having textile fabric embedded therein, the fabric is embedded in the cementitious material in such a way that a portion of the fabric is left projecting at one or both edges, so that after the sheet has been subjected to the necessary pressure to form a stiff paste or dough in sheet form, it may be lapped round a core or mandrel and the edges brought together and the projecting edges of the fabric embedded in the cementitious material and the joint smoothed off. The fabric may be made of jute, hemp, asbestos, hair, &c., and the cementitious material may consist of a mixture of Portland cement and asbestos or jute fibre.
Patent GB-722096-A (GB)
Title: Improvements in or relating to electron lens
IPC: H01J37/143
Filed: 1951-05-31
Abstract: 722,096. Cathode-ray tubes. SIEMENS & HALSKE AKT.-GES. May 31, 1951 [Oct. 1, 1948; Oct. 1, 1948]. No. 12955/51. Class 39 (1). The strength of the magnetic field for concentrating the electron beam in a cathode-ray tube, such as an electron microscope, is adjustable by a magnetic member, the position of which is regulable relative to a magnet. Magnets 9, Fig. 1, are arranged between poles 1 and the concentrating fields are formed between poles 1, 3, 3, 5 and 5, 6. Magnets 13 connect the magnets and the poles together and the rotatable magnetic members adjust the strength of the magnetic field in the pole gaps. The magnets can form part of the walls of a microscope which is connected to a vacuum pump through channels formed in the poles 1. A three stage lens, Fig. 2 consists of four poles each fitted to a limb 25, Fig. 2, of two U- shaped magnets between which is arranged a slidable magnetic shunt 34. In a modification, circular magnets are arranged in parallel planes and each magnet is connected, respectively at each end. to an axial pole and an outer disc-shaped pole. A soft iron armature parallel to the lens axis is slidable in a cylindrical track determined by the two magnets. A bar magnet may be extended by a soft-iron armature, which is slidable longitudinally in holes in the poles of the-lens. Iron cylinders 58, 60, Fig. 4, are rotatable on the poles 55, 56 to rotate bar magnets 59, 61, past magnet poles 54, 57 and a spiral-shaped iron member 62. A twostage lens for a microscope consists of cylindrical magnets 203, 204, Fig. 6, and the lenses are formed between poles 205, 209 and 208, 210. A jacket 211 screens the lens from external fields. Rotatable or slidable. armatures 212, 213, 222 adjust the magnetic strength of the lens. Further adjustment of the field for the projection lens is obtained by inter-changeable poles 215 which are carried by the rotatable holder 214. A similar arrangement for a four stage lens consists of cylindrical magnets 204, Fig. 6, between which are clamped four poles 210; the shunt 213 is slidable. The magnetic shunts are connected to a driving mechanism so that they slide in opposite directions to prevent rotation of the electron image. Bar magnets 231, 232, Fig. 7, are provided with poles 236, 237 and are arranged within a jacket 239 of which the end plates 235, 237 constitute the outer poles of the lens. The field strength is adjustable by the armatures 240 ... 243. A fourstage lens consists of two cylindrical magnets 261, 262, Fig. 8, poles 258, 259, 250, further poles formed by the end walls of the jacket.257, slidable armatures 263, 266, 267 and of toothed members 264, 265 one of which is rotatable to alter the magnetic reluctance. The operating mechanism for the armature may be calibrated.
Patent GB-115759-A (GB)
Title: Improvements in Match Receptacles.
Inventor: KNIGHT RICHARD DEXTER
IPC: A24F29/00
Filed: 1917-09-11
Abstract: 115,759. Knight, R. D. Sept. 11, 1917. Match - striking plates.-A matchstriking plate 9, Fig. 1, of friction material is held against the side of a match-box 13 by an open frame 10, which is hinged at 12 and secured by a catch 16 and which has an inwardly-turned edge flange forming a recess to accommodate the plate. In a modification, Fig. 7, the friction plate 21 is held in a recess in the side of the box, and the hinged frame has an inset lip 26 adapted to enter a cut-away part of the box-lip and to be fastened by a catch 28 and by the lid 27.
Patent GB-131852-A (GB)
IPC: B25D9/18
Abstract: 131,852. Rayner, G. H. T., and Rayner, P. April 14, 1919. Fluid-actuated gears; beat or lift valves; slide valves, cylindrical and piston.-A combined lift and slide valve, actuated by compression and main-pressure supply acting on one end of the valva when the opposite end of the cylinder is exhausted, has end collars a<1>, a<3> seating in port blocks b, b<1>, and a central collar a<2> controlling admission from an annular chamber c<1> supplied through ports c<2> which limit the supply irrespective of any increase in the stroke of the valve to the ends of the valve chambers c to feed one or the other end of the cylinder. The fluid is fed through annular grooves c<3>, c<4>, c<5>, c<6> and cross ports c'. To help throw the valve, a small cross port c<8> connected by a port c' to the supply is provided. In a modified form of valve, end projections are provided which loosely fit the passages in the blocks to diminish loss by leakage.
Patent GB-290570-A (GB)
Title: Manufacture of mixed esters of cellulose
IPC: C08B7/00
Filed: 1928-05-04
Abstract: 290,570. Kodak, Ltd., (Assignees of Clarke, H. T., and Malm, C. J.). May 14, 1927, [Convention date]. Cellulose nitrate-carboxylates, and processes for making films therefrom.-Cellulose esters containing both nitrate groups and halogen substituted acyl groups are prepared by treating nitrocellulose with an esterifying bath containing an agent capable of introducing into cellulose an acyl group having an ethylene linking, and subjecting the unsaturated nitro-ester so obtained to the action of an halogenating-agent. The nitrocellulose employed is preferably not fully nitrated, say of 11 per cent nitrogen content. It is preferred to use an esterifying-bath containing a powerful anhydride which does not itself esterify, in particular, monochloracetic anhydride, as described in Specification 313,408. Suitable esterifying- agents are crotonic acid, undecylenic acid and higher acids of the same series, and substituted acids such as cinnamic acid. The presence of a mild catalyst such as magnesium perchlorate is desirable. In an example, cellulose nitro-crotonate is first prepared; after separation and washing, this is dissolved in acetic acid and is then treated with bromine or chlorine, to give a product soluble in acetone, acetic acid or ether, and which from acetone solution produces transparent and flexible films.
Patent GB-547648-A (GB)
Title: Improvements in a hair comb
IPC: A45D24/02
Filed: 1941-10-14
Abstract: 547,648. Combs; indiarubber compositions- UNITED STATES RUBBER CO. Oct. 14, 1941, No. 13198. Convention date, Nov. 28, 1940. Drawings to Specification. [Class 70] [Also in Group XIV] Hair combs formed of rubber compositions are rendered electrically-conducting by incorporating in the rubber composition an electrically-conducting carbon black such as acetylene carbon black. 80 to 20 parts of carbon black to 100 parts of rubber may be used.
Patent GB-1185912-A (GB)
Title: D.C. Dynamo-Electric Machines
IPC: H02K23/56
Filed: 1967-03-21
Abstract: 1,185,912. Machines with permanent magnets. GILLETTE CO. 21 March, 1967 [21 March, 1966], No. 13204/67. Heading H2A. A D.C. dynamo-electric machine comprises a permanent magnet 1 secured to a stationary, laminated flux return component 2, and a rotor 5 without a magnetic core adapted to rotate in the field of the P.M., the flux return component being flattened in the regions 3, 3<SP>1</SP> adjacent the magnetic poles. In modifications, Figs. 2, 3, 4 (not shown), the flux return component is generally U-shaped and a P.M. may additionally or alternatively be secured to one or both limbs of the U.
Patent GB-593447-A (GB)
Title: Improvements in chokes for use in electrical circuits
IPC: H01F27/245
Filed: 1945-05-26
Abstract: 593,447. Inductances. REVO ELECTRIC CO., Ltd., and FELTON, A. E. May 26, 1945, No. 13212. [Class 38 (ii)] For reducing noise in a choke which may form part of the control gear for gas discharge lamps, one or more insulation layers b placed between laminations of the core a extend across an air-gap between one end of a central limb carrying the choke coil and a yoke. The insulating layers b may be of fibre pressboard or a plastic and of the shape shown in Fig. 3 with a cut b<2> arranged adjacent the root of the middle limb of each lamination. Plastic wax varnish or thermosetting varnish with or without fibre filling may occupy the air-gap spaces between the insulating layers, and the whole stack is bolted between two end plates.
Patent GB-716615-A (GB)
Title: Improvements relating to registers such as are employed in digital computing apparatus
Inventor: SPENCER ROLF EDMUND
IPC: G11C19/04
Filed: 1951-06-05
Abstract: 716,615. Digital electric calculating-apparatus. ELECTRIC & MUSICAL INDUSTRIES, Ltd. May 22, 1952 [June 5, 1951], No. 13263/51. Class 106 (1) Digital computing apparatus comprises a first group of two-state devices constituting a first number register, a second group constituting a second number register, means for applying a transfer signal to the second group tending to change the state of each device from a predetermined state, and individual couplings from devices in the first group to corresponding devices in the second group whereby the change is inhibited when the corresponding device in the first group is in a predetermined state, the arrangement being such that, on application of a transfer signal, a representation of the states of the first group of devices is transferred to the second group of devices. Binary numbers are registered on rows of magnetic cores such as 6<SP>1</SP>, 6<SP>2</SP> ... 6p (register SR'), a " 1 " being represented by magnetic saturation of a core in one sense, and a " 0 " by saturation in the opposite sense. Each core is linked to a corresponding core 7', 7<SP>2</SP> ... 7p of another register Z by a winding which includes a unilateral conducting device 9<SP>1</SP>, 9<SP>2</SP> ... 9p, such as a biased choke, as described in Specification 716,616, and the cores 6', 6' ... 6p are " laced " together by a single winding 14 connected to a source of pulses 15. When all the cores 6<SP>1</SP>, 6<SP>2</SP> ... 6p of register SR' are registering " 0 "s and the cores 7', 7<SP>2</SP>... 7p of register Z represent a binary number, a pulse of one polarity applied via the winding 14 to register SR' has the effect of bringing the representation of the binary number from register Z to register SR' and clearing register Z. A pulse of opposite polarity applied to the winding 14 will cause a number registered in SR' to be sent out (by links not shown in Fig. 2 but indicated diagrammatically by a connection 2<SP>1</SP>, in Fig. 1) to a further register X. Thus in an arrangement as indicated in Fig. 1, data can be selected from a plurality of magnetic core-type stores SR', SR<SP>2</SP> ... SRn by applying an " advancing " pulse of appropriate polarity via one of the lines 4<SP>1</SP>, 4<SP>2</SP> ... 4n, and sent in parallel mode, to an arithmetic organ AO via the register X. An " advancing " pulse applied to the register X via line 5 will send the data to register Z and, in order to return it to one of the storage registers SR-, a " suck " pulse, of polarity opposite to that of an "advancing" pulse, is applied to the appropriate line 4<SP>1</SP>, 4<SP>2</SP> ... 4n.
Patent GB-628872-A (GB)
Title: Improved method of manufacturing contact half-tone screens
IPC: G03F5/16
Filed: 1947-05-16
Abstract: 628,872. Photo-mechanical half-tone screens. KODAK, Ltd. May 16, 1947, No. 13292. Convention date, May 18, 1946. Drawings to Specification. [Class 98 (ii)] Relates to a method of manufacturing contact half-tone screens such as are described in Specification 544,033, in which a photosensitive layer is processed after exposure to a light source at an effectively infinite distance therefrom, through a master screen having rectilinearly disposed transparent and opaque elements. In a known method, the distance between the master screen and the photosensitive surface is given by 1/12N<SP>2</SP># where N is the number of lines per unit length of the screen, and # the predominant wavelength of the exposure light. This screen distance is inconveniently short for screens of over 200 lines per inch, and in the method described is made 1/N<SP>2</SP># 10 per cent. This distance must be calculated as if the master screen were a simple lens forming an image of the light source on the photo-sensitive surface if the distance of the light source is not effectively infinite. It is found that, owing to diffraction effects, the size and shape of the master screen openings is unimportant ; the master screen may therefore be either a standard crossline screen or one produced. photographically. Light from a lamp and reflector is passed through a filter and a diffusing screen to illuminate an aperture which acts as a source of light for the exposure. To illuminate the aperture more evenly, the lamp may be replaced by four lamps, or the reflector may comprise four plane mirrors, and/or the diffusing screen may be replaced by a lens. Specification 628,871 also is referred to.
Patent GB-1308664-A (GB)
Title: Electric motors
IPC: H02K7/08
Filed: 1970-03-19
Abstract: 1308664 Mounting rotors for dynamoelectric machines ROBERT BOSCH GmbH 19 March 1970 [19 March 1969] 13311/70 Heading H2A In an electric motor comprising a rotor shaft 12 mounted in a casing 4 by two rolling bearing assemblies 20, 27, the outer race of one assembly 27 is in frictional engagement with a resilient member which permits relative axial movement of the outer race and the casing but prevents circumferential movement of the outer race. The electric motor disclosed and shown drives a percussion screwdriver and comprises a rotor 11 mounted in a plastics casing 4 by two ball bearing assemblies 20, 27, the outer race of bearing 20 being fixed in a seat 22 by a cover 24 and the outer race of bearing 27 being engaged by an oil- and heat-resistant rubber bushing 30 which permits axial movement of the outer race in a metal bush 28 to compensate for different thermal expansion of the rotor shaft and casing.
Patent GB-855607-A (GB)
Title: Radio receiver
IPC: H04B1/08
Filed: 1959-04-20
Abstract: 855,607. Resonators. GASSMANN, V. O. April 20, 1959 [April 21, 1958], No. 13388/59. Class 13. [Also in Groups XXXVI, XXXIX and XL (c)] A radio receiver folds flat for carrying but in use is opened out to form a resonator amplifying the sounds produced. In one embodiment, Figs. 1, 2, the front and back of the case are connected by concertina-shaped flexible members 1, 2 and the components are in a box 3 which hinges up to form the top of the resonator. In another embodiment, Figs. 7, 8, the front and back are hinged along one edge, the resonator being completed when in the open position by triangular flexible gussets 8. The case may taper towards the ends, the thicker components being placed at the centre. A separate loud-speaker is not used, but a piezo-electric or magnetic vibrator directly attached to one side of the case. The receiver may include a removable telescopic aerial arrangedfor attachment to any suitable surface (Figs. 10, 11, not shown).
Patent GB-134223-A (GB)
IPC: C08J3/09
Abstract: 134,223. Melamid, M., and Grotzinger, L. Oct. 31, 1917, [Convention date]. Lubricants for machinery and fibres.-Oils such as tar oil, mineral oil, resin oil, fatty oils, or fatty acids are rendered soluble in water or capable of forming emulsions therewith 'by the addition of alkali compounds of resin-like bodies of acid character separated from coal tar, brown coal tar, soft pitch, or the distillates therefrom, and boiling in vacuo above 270‹ C. The pitch, tar, or tar oil is treated with caustic soda solution and the aqueous layer obtained is acidified with hydrochloric acid. The bodies separating from the solution are washed and distilled in vacuo. The portion distilling above 270‹ C. is collected as a whole or in fractions and, in some cases after further purification, is dissolved in caustic alkali solution and added to the oil to be rendered soluble or emulsifiable. Prior to the final treatment with alkali, the material may be sulphonated. The solutions or emulsions produced may be used as lubricants in machining metals, or as substitutes for soaps or Turkey red oil in treating textiles. The Specification as open to inspection under Sect. 91 (3) (a) describes also the use as emulsifying agents of substances obtained by treating tars, as such, with basic substances such as lyes or pyridine, or by treating with bases a mixture of acid substances, phenols, and neutral bodies separated from the tars. The various tar products may be further fractionated before treatment and the final products afterwards combined. Resin oils, mineral oils, fatty oils, &c. may be mixed with the tar products prior to treatment with bases. This subject-matter does not appear in the Specification as accepted.