baber/WOPTO huggingface dataset:
Patent GB-606773-A (GB)
Title: Improvement in air heaters
IPC: F28F1/42
Filed: 1946-01-18
Abstract: 606,773. Tubular heat-exchangers; airheating stoves. SPANNER, E. F. Jan. 18, 1946, No. 1798. [Classes 64(i) and 64(iii)] An air heater comprises a nest of spirally grooved tubes as described in Specification 569,000, the air flowing through the tubes and a hot gas flowing across and/or along the outsides of the tubes. In the form shown, in which the hot gas flows across the tubes A in two passes, the space between the tubes is made smaller in the downflow passage than in the upflow passage for the hot gas, by setting the baffleplate K off-centre. In another form, the hot gas flows over the tubes in a single pass, and the air flows through the tubes in two passes. The hot gas may be supplied from the exhaust of a Diesel engine or gas turbine, or from a furnace. The Provisional Specification describes also an air heater comprising a tubular heat exchanger associated with an insulated furnace to which air in excess of that needed for combustion is supplied by a fan or is induced by a high chimney or a fan. The tubes may be horizontal or vertical. Specifications 521,548 and 542,954 also are referred to Reference has been directed by the Comptroller to Specification 569,000.
Patent GB-615545-A (GB)
Title: Improvements in ball bearings
IPC: F16C33/60
Filed: 1946-01-18
Abstract: 615,545. Ball bearings. SCOPHONY, Ltd., and ADAMS, A. E. Jan. 18, 1946, No. 1846. [Class 12 (i)] A high-precision shock-proof ball bearing consists of or includes a ring of balls which co-operate with at least three race parts, the working surfaces of which are finished by a process as in optical polishing comprising rotation and gyration or translation in the presence of a polishing medium. Fig. 1 shows an outer race 10, the track 11 of which is of frustospherical cup-form through the bottom 12 of which extends an inner race member 13 prevented from passing therethrough by a snap ring 15 and having a track of convex frustospherical form 14 with the smaller end arranged towards the larger end of the outer race. The inner race member 13 is a push-fit on a flanged bush 20. After insertion of the balls 19 a thrust-disc inner race member 17 finished as for an optical flat is slid on the bush 20 to be pressed against the balls by a dished spring disc 22 retained by a snap ring 23. In the form shown in Fig. 2, the outer race comprises a member 23A push-fitted in an outer housing ring 33 and a member 23B with slide-fit and pressed towards the member 23A by a spring ring 30 held in place by a snap ring 31. The inner race consists of two members 25A, 25B similarly fitted on the bush 34. The tracks 24 of the outer race members and 26 of the inner race members are respectively of concave and convex frusto-spherical form finished as in optical polishing, the two outer-race members 23A, 23B having their larger openings facing each other while the two inner-race members 25A, 25B have their ends of smaller diameter facing each other. With the spring rings 30, 36 for the outer and inner races arranged at the same end of the bearing this can yield against shock in either direction; the bearing can also yield against radial shock. The cage 28 for the balls is located between the associated members of each race.
Patent GB-803518-A (GB)
Title: New synthetic resin compositions
Inventor: SWANN GEOFFREY
IPC: C08L63/00
Filed: 1956-01-19
Abstract: Synthetic resin compositions comprise an epoxy resin containing terminal epoxy groups and a modified polyamide which is the condensation product of one or more polyamines with a copolymerization product of styrene or vinyl toluene and dehydrated castor oil fatty acids, (see Specification 803,517). In the examples: (1) a solution of a modified polyamide xylene and isopropanol is mixed with a solution of an epoxy resin in xylene and methyl ethyl ketone, sprayed on to glass plates and dried; (2) to (9) inclusive, modified polyamides are mixed with epoxy resins and gelled.  The compositions of the invention may be used as film formers, for potting, moulding, casting, laminating or impregnating.
Patent GB-682198-A (GB)
Title: Improvements in or relating to breeding cages
Inventor: HARRISS ANTHONY ARCHER
IPC: A01K1/03
Filed: 1950-01-25
Abstract: 682,198. Cages for breeding mice. TIBBITTS & ALLEN, Ltd. Jan. 25, 1951 [Jan. 25, 1950], No. 1977/50. Class 5(ii) A box or cage for breeding mice comprises a container 2 with a rolled upper edge 3, and a lid 4 with a flanged edge 8 and inwardly inclined sides 5. Water is supplied to a transverse recess 9 and a feeding basket 11 fitting beneath the lid is supported on flanges 12. Air-holes 10 are provided in the lid and in the sides of the container.
Patent GB-335487-A (GB)
Title: Method of producing seamless tubes and pipes
IPC: B21J5/10
Filed: 1930-01-20
Abstract: 335,487. Kiefer, P. Jan. 21, 1929, [Convention date]. Rolling tubes.-A solid ingot is worked into a tube by holing in two stages, by a preliminary small bore holing e.g. by the drifting of a press mandrel and then further holing to approximately final internal diameter e.g. in skew rolls, then finishing in a twin or reducing rolling-mill.
Patent GB-574499-A (GB)
Title: Improvements in or relating to the application of card clothing to the cylinders of carding engines
IPC: D01G15/92
Filed: 1944-02-03
Abstract: 574,499. Carding engines. SJOGREN, W. O. Feb. 3, 1944, No. 2013. Convention date, May 1, 1943. [Class 120 (i)] Mechanism for the application of card clothing to the cylinders of carding engines comprises a large worm gear 22 attachable to either end of a cylinder shaft, a worm gear 37 adapted to drive traversing means for a tension device T, and worms 34 and 36 on. a shaft 30 driven from a power driving unit consisting of a motor M, a speed-reducing gear box G, and a magnetic brake 54, all of which are mounted on a base plate 50 suspended from a shaft 62 by hangers 65. The shafts 42, 44 are relatively offset and in order that the mechanism may be mounted at either end of the cylinder shaft 10 the driving unit is adapted to be inverted.
Patent GB-638607-A (GB)
Title: Improvements in and relating to scale reading instruments
IPC: B23Q17/24
Filed: 1948-01-24
Abstract: 638,607. Optical scale-reading apparatus. HILGER & WATTS, Ltd., and TOWNS, V. W. H. Jan. 24, 1948, Nos. 2216 and 15458. [ Classes 97 (i) and 97 (ii)] [Also in Group XXII] An optical system forms magnified images from two corresponding portions of a scale or of adjacent scales, the image of the first portion at a sufficiently low magnification to allow of the figures on the scale to be distinguished and the image of the second portion at a higher magnification to give a more accurate reading intermediate two scale divisions. As applied to the reading of a circular scale in which images of diametrically opposite points of a scale are viewed simultaneously, the scale is preferably of the forms shown in Figs. 4 and 5. The system comprises a prism 5, lenses 6 and prism 8 which form an image of the portion B of the scale, carried on a glass ring 2, against the diametrically opposite portion C or vice versa. Images of these superimposed scale images and of the scale A are formed by prism 9 and lenses 10 in the plane of a scale 11 connected to a pivoted refractor block 7 by which the image formed by the lenses 6 may be moved, the scale 11 indicating the degree of movement. Images A, D, Fig. 3, of the scales A and 11 are formed at ordinary magnification on a screen 14 by prism 12, lens 13 and mirror 16 while an image at larger magnification of the superposed scales B, C is formed by the prism 12a and lenses 13a. Alternatively, the images may be viewed in a microscope eyepiece. The invention is applicable to circular tables and dividing heads for machine tools and may be applied to linear scales. Specification 599,324 is referred to.
Patent GB-284079-A (GB)
Title: Improved safety appliance for steam boilers and like vessels subjected to fluid pressure
IPC: F22B37/44
Filed: 1927-02-17
Abstract: 284,079. Summers & Sons, Ltd., J., and Corlett, W. H. Feb. 17, 1927. Steam, preventing admission of to boiler during cleaning and repairing.-The steam or other pressure-fluid valve of a boiler or the like is locked by a pawl C, Fig. 2, which is pressed by a spring F into engagement with a ratchet wheel I on the valve spindle when a manhole cover or other means of access to the boiler is removed. The pawl is normally held out of engagement with the ratchet by a rope or chain H which is held by one of the bolts securing the manhole cover, or is attached to a lever M, Fig. 5, adapted to be turned by a pin N to tighten the rope &c. when the cover Q is secured on its seat. The pawl may be operated electrically.
Patent GB-991675-A (GB)
Title: Magnetic recording materials
IPC: G11B5/702
Filed: 1963-01-18
Abstract: A covering layer, pigment layer or other coating is anchored to the back side of a magnetic recording tape by an intermediate p  layer of a copolymer of vinylidene chloride and acrylonitrile containing 81-98% of vinylidene chloride units.  This copolymer adheres well to substrates of cellulose esters, such as cellulose triacetate and polyesters such as polyethylene terephthalate. Preferably a wetting agent is added, such as the higher saturated or unsaturated aliphatic amides, for example 9-octadecane amide or 9-octadecene amide.  A similar intermediate layer may anchor the magnetic recording layer to the substrate.  Examples are given, with quantities, of various substrate, intermediate layer and magnetic layer combinations. Specification 991,676 is referred to.
Patent GB-127216-A (GB)
Title: Improvements in the Manufacture of Hand Cuffs or Leg Irons.
Inventor: ADAMS FRANCIS JAMES
IPC: E05B75/00
Filed: 1919-01-30
Abstract: 127,216. Adams, F. J., and Bridge, W. E., (trading as Security Manufacturing Co.). Jan. 30, 1919. Handcuffs &c., of the type comprising two bow members connected by a short length of chain and having locking-members hinged to the bows, are made from hot stampings, drop-forgings, or malleable or steel castings with the chain attachment stud 2 and the hinge member 4 integral with the bow 1. When made from drop-forgings or hot stampings, upper and lower tools 6 are employed, each having a recess 11 corresponding to one half of the bow and being provided with projections 7, 8 for piercing the stud-hole and hinge-hole respectively.
Patent GB-277286-A (GB)
Title: Improvements in or relating to machines for winding or covering cables or the like with tape or strip material
IPC: H01B13/08
Filed: 1927-01-26
Abstract: 277,286. Krupp Grusonwerk Akt.- Ges. Sept. 11, 1926, [Convention date]. Addition to 267,091. Cores, covering by winding. - In the machine of the parent Specification all the tape spools on the winding head are adapted to be adjusted or set simultaneously. The spools 2 are mounted on spindles 8 carried by arms 9 pivotally mounted upon the head 12, the arms having secured thereto levers 10 having slots 14 adapted to engage pins 15 upon a disc 13 rotatably mounted on the head. The disc 13 is rotated and the levers actuated simultaneously thereby by means of a lever 16 which can be secured in position by a set-screw &c. 17. A guiding and braking device 19 is preferably mounted on each of the arms 9.
Patent GB-178215-A (GB)
Title: A new or improved appliance for facilitating the marking and dividing of surfaces, also for facilitating the operations of accurate drilling, punching and the like
IPC: B23Q1/62
Filed: 1921-01-17
Abstract: 178,215. Arnold, P. Jan. 17, 1921. Drilling. - A jig for drilling, spotting, and like work comprises parallel rods a, a<1> mounted in lugs integral with brackets a<3> having downwardly extending portions a<4> clamped against the work by means of threaded rods a<5>. The rods a, a<1> carry sliding sleeves b, b' respectively and parallel rods b<2>, b<3> secured to the sleeve b and passing freely through the sleeve b<1> carry an adjustable carriage c provided with a brush c<4> for locating a drill &c. Vernier scales are provided for the longitudinal and transverse adjustments of the carriage. For work involving the use of angles the apparatus may be mounted on a dividing head as shown in Fig. 4. The jaws a<4> are clamped to lugs d on the stationary table d<1> of the head and the work is fixed to a graduated rotatable table d<3> carried on a spindle mounted in a boss d<5> on the fixed table.
Patent GB-1400634-A (GB)
Title: Power assisted steering system
IPC: B62D6/00
Filed: 1973-01-16
Abstract: 1400634 Power-assisted steering mechanism COVENTRY CLIMAX ENGINES Ltd 15 Jan 1974 [15 Jan 1973] 2335/73 Heading B7H The degree of assistance provided by a power assisted steering system in a vehicle is varied in accordance with changes in the load carried by the steerable wheel of the vehicle. In a rear wheel steer fork lift truck where the load on the steerable wheels is reduced when the truck is carrying a load, a pump 17 supplying a steering valve 15 which controls a steering ram 14 is driven by an electric motor 17 connected to a thyristor speed controller 18 which receives a control signal proportional to the load carried by the forks from a sensor 19 and reduces the speed of the motor 17 as the load on the forks increases. The speed controller 18 also receives a control signal from the controller 13 of a traction motor 12 and reduces the speed of the motor 17 as the speed of the truck increases.
Patent GB-368469-A (GB)
Title: Improvements in spray carburetters for internal combustion engines
IPC: F02M9/14
Filed: 1931-01-24
Abstract: 368,469. Spray carburetters. H. H. CARBURETTER CO., Ltd. and HUTCHISON, H., 145, St. Vincent Street, Glasgow. Jan. 24, 1931, No. 2407. Addition to 240,392, [Class 7 (iii), Internal-combustion engines, Carburetting-apparatus &c. for]. [Class 7 (iii).] The parent Specification describes a carburetter having a mixing chamber around the fuel nozzle, an inner deflector in said mixing chamber to gyrate the primary air, and a deflector on the outside of the mixing chamber to gyrate supplementary air, the primary and supplementary air streams being gyrated in opposite directions. According to the invention the mixing chamber is adapted to be moved axially while the carburetter is functioning. It may be moved independently, or in conjunction with the choke tube located above it. The axial movement may be effected (1) by rotating a ring, a series of inclined parts on which engage similar parts on the lower end of the mixing chamber ; (2) by a cam or eccentric ; or (3) by a rod parallel to the nozzle.
Patent GB-434263-A (GB)
Title: Process and separator for preparing concentrated creams of saps
IPC: C08C1/10
Filed: 1935-01-24
Abstract: 434,263. Indiarubber. NYROP, A., and KOEFOED, HAUBERG, MARSTRAND, & HELWEG AKTIESELSKABET TITAN, 86, Tagensvej, Copenhagen. Jan. 24, 1935, No. 2429. [Class 70] [See also Group II] The cream of a sap such as rubber latex is produced in a centrifugal separator where the relation of the feed of the sap to the discharge of the heavy skim can be regulated and determined. The bowl 3 is enclosed in a casing 11 with air-tight covers 12, and has a top 5 secured to it by a ring 6. The inset 7 with flared base 23 carries the liner discs 8 ; it contains a small chamber 17 to receive the sap from the feed tube 16, and lateral passages 18 lead the sap into the bowl. A plate 29 is secured at its periphery between the bowl 3 and its top 5, thereby forming a pludge chamber 20. The latex passes from the passages 18 through the distributing holes 19 in the plate 29 and the discs 8, to the spaces between the discs, and the cream follows a short path to the discharge passages 21, the cup 22, and the vessel 14 which has a sharply inclined bottom leading to the spout 15. The heavy skim passes to the wall of the bowl, then below the base 23 of the inset to the passages 24 and the cup 2 from which it is discharged through a nozzle 25 to the outlet 27. The nozzle is radially adjustable by screwing, and after a nozzle with a suitable bore has been inserted, its position can be adjusted to vary the skim discharge so that the cream discharge is controlled. The nozzle 25 mav have a valve or throttle to regulate its discharge area. Specifications 3909/98, 219,635, [both in Class 70], and 429,574, [Group II], are referred to.
Patent GB-395964-A (GB)
Title: Improvements in or relating to gas-heated appliances
IPC: F24H9/20
Filed: 1933-01-26
Abstract: 395,964. Thermally-controlled valves. BOSCH AKT.-GES., R., 4, Militõrstrasse, Stuttgart, Germany. Jan. 26, 1933, No. 2483. Convention date, Feb. 17, 1932. Addition to 384,200. [Class 135.] In a gas-heated appliance according to the parent Specification, in which a backdraught causes extinction of a " guardian " flame burner 29, from which results the closure of the valve 23 controlling the gas supply to the main burner, the arrangement is such that the guardian flame is extinguished by a small current of the burnt gases from the combustion chamber, which is caused to branch off from the main current at a point where an excess pressure prevails only when a back-draught occurs. In this way failure to extinguish the guardian flame owing to admixture of oxygen with the waste gases, such as might occur during a strong backdraught, is avoided. In the geyser shown in Fig. 5, a down-draught produces an increase of pressure which causes burnt gases not mixed with air to be diverted down a pipe 43 opening into the top of the back-draught diverting hood 12, these gases being conveyed to the flame of the burner 29 to extinguish it. 'A hood 45 may be arranged over the opening to the pipe 43 to aid in preventing admixture of air passing down the flue with the gases entering the pipe 43. To aid the gravitational descent of the gases to the burner 29, the pipe conveying them may be cooled by air or water, and may be protected from the heat-emitting parts of the apparatus by a partition and air space. To prevent extinction of the burner 29 by short intermittent back-draughts, the pipe may comprise an enlarged portion, formed in the case shown by a flat elongated box 49, which retards the delivery of the burnt gases to the burner. Fig. 7 shows a construction of the guardian-flame burner, comprising a valve 32 which is pressed on to its seating to cut off the gas supply by means of a diaphragm 31 acting through a spring 61. When the diaphragm is heated it curves and raises the valve. The extinguishing gases are conveyed to the burner through a flexible pipe 64 connected to a cover 65 mounted on the burner and having a central aperture 67 for the flame. A gas heater is described in which the gas valve of the main burner is operated by a thermostat heated by the flame of the guardian burner, and closes when the latter burner is extinguished.
Patent GB-1590245-A (GB)
Title: Dye preparations and dyeing processes employing the same
IPC: C09B69/02
Filed: 1978-01-23
Abstract: Disclosed is a liquid dye concentrate for dilution down to form a dyebath for the dyeing of blend substrates comprising acid and cationic dyeable fibres, which concentrate comprises at least one acid dye, at least one cationic dye and, as auxiliary agents, a nonionic or anionic polyglycol ether, or a mixture thereof, and a cationic, amino group containing polyglycol ether, other preferred optional additives being a low molecular weight carboxylic acid, such as acetic or formic, and one or more aliphatic C6-16 alcohols, particularly for viscosity stabilization and/or foam inhibition. Also disclosed is a dyeing process employing such a concentrate in dilute form.
Patent GB-251034-A (GB)
Title: Improvements in electric switches
IPC: H01G4/228
Filed: 1925-01-29
Abstract: 251,034. British Thomson-Houston Co., Ltd., and Harris, P. T. Jan. 29, 1925. Condensers.-The movable arm of an electric switch has mounted thereon a component having impedance such as a condenser or the like, the terminals of which are electrically connected to the contact fingers on the arm. The condenser 1 is mounted on the switch arm 2 and its terminals 4 are connected by supporting strips 3 to contact fingers 6 adapted to co-operate with fixed contacts 9. The switch is mounted on a spindle 7, which may be provided with a knob, and a flexible connection 10 is provided, which may however be eliminated by means of a metallic insert in the arm 2 connected with the spindle 9, connection thereto being made, for example. by clamping a strip of copper under the hush 11. In the position a, in Fig. 4, the condenser 1 is in parallel with the inductance 1, at b it is disconnected at c it is in series with the inductance and earth E, and at d, if such position is desired, it may be short-circuited. A fixed resistance 12, Fig. 3, of the carbon granule type is mounted by means of a pipe 13 in the strips 3, for use in connection with a variable resistance 14 so that either dull or bright valves may be used. At a, Fig. 5, the resistances are in series, at b the resistance 12 is disconnected, and at c the resistances are in parallel. According, to the Provisional Specification the fingers may be connected directly to the terminals of the condenser, the latter being yieldingly gripped in a U-shaped piece of material which may be attache to the spindle.
Patent GB-901850-A (GB)
Title: Improvements in or relating to liquid dispensing apparatus
Inventor: DOWNIE GEORGE
IPC: B67D1/10
Filed: 1960-01-26
Abstract: 901,850. Dispensing measured quantities of liquid. GASKELL & CHAMBERS Ltd. Jan. 13, 1961 [Jan. 26, 1960], No. 2758/60. Class 106 (5). A dispenser of the free-piston type, particularly for dispensing beer, has a pair of rotary plug valves 16, 17 and the piston 15 slides on a tube 18 through which incoming liquid is supplied to both valves and which also interconnects the valves for simultaneous rotation by a handle 19. In the position shown, incoming liquid flows through a radial port 20 in the lower valve 17 and an L-shaped conduit 22 in the lower end member 12 into the cylinder 10 and the liquid displaced above the piston flows through an L-shaped conduit 22 in the upper end member 11 and a chordal slot 21 in the upper valve 16 to a discharge line 25. When the valves are rotated, incoming liquid flows up the tube 18 and through the radial port 20 of the upper valve 16 and the L-shaped conduit 22 of the upper end member 11 into the top end of the cylinder and the liquid displaced below the cylinder flows into the lower conduit 22 and slot 21 to a transfer tube 26 connected to the discharge line 25. The discharge line may have a spring-loaded closure member to prevent dripping. The cylinder wall is transparent and may have a datum line at each end co-operating with a line on the piston to indicate to a customer that correct measure has been given. The liquid may be pressurized by carbon dioxide or other gas or by a pump or by both such means and, where a pump is used, a pressure sensitive switch may switch off the pump motor at a predetermined pressure.