baber/WOPTO huggingface dataset:
Patent GB-216055-A (GB)
Title: Improved non-reversible valve gear for prime movers
IPC: F01L29/04
Filed: 1923-11-28
Abstract: 216,055. Chorlton, F. O L. Nov. 28, 1923. Linkage gears.-In a single eccentric, reversible valve-gear, the valve and cut-off controlling - means a.re both connected to the eccentric strap at 90‹ apart instead of 120‹ apart as in the gear described in Specification 203,518. The eccentric strap c is connected at d to the valve, and at h by a rod i to a block l slidable in a link m and connected to a governor-controlled relay piston r. The arc of the link m is struck from centre h and the gear is arranged to vary the cut-off without affecting the lead. Effects equivalent to a reduction or an increase in the angle of advance of the eccentric are produced by moving the block l to the top or bottom of the link respectively. The link m may be dispensed with and the rod i moved by a relayoperated bell-crank.
Patent GB-636928-A (GB)
Title: Improvements in or relating to carrier telephony systems
IPC: H04J1/10
Filed: 1947-11-11
Abstract: 636,928. Carrier transmission systems. GENERAL ELECTRIC CO., Ltd., LEY, D. A. and RUTENBERG, A. Nov. 11, 1947, No. 30000. [Class 40 (iv)] In a carrier telephony system, Fig. 1, each of a number of stations transmits signals in one frequency band and receives signals in a second different frequency band, apparatus being provided to convert signals from the first band to the second. An alternative arrangement, Fig. 2, has one or more of the stations transmitting in the second band and receiving in the first band, the frequency conversion apparatus being adapted to function in both directions. Repeaters or attenuators may be used.
Patent GB-483838-A (GB)
Title: Portable casing transformable into a table for sewing machines
IPC: D05B77/00
Filed: 1936-11-04
Abstract: 483,838. Sewing-machines. ROBERT, R. C. Nov. 4, 1936, No. 30067. [Class 112] [Also in Group XIV] A carrying casing for a portable sewing-machine is constructed so that it can be lifted from the machine and opened out to form an enlargement of the work-support. The casing comprises two halves 11, 12 hinged together at 14 and capable, when closed, of fitting over the machine 4 and being fastened to the base 3 by a bolt 1 controlling latches and operated by a square recessed key. When the bolt 1 is released and the case lifted clear of the machine by the handle 2, the halves open out flat. The half 12 carries a flap 13 which is turned about its hinge 15 to uncover the slot 16 in the half 12, into which the machine 4 is fitted as shown in Figs. 5 and 6, the casing then forming an extension of the normal worksupport 22. The flap 13 is normally held in position to cover the slot 16 in the half 12 by a clip 19,
Patent GB-899823-A (GB)
Title: Surface-active acetals and formals
IPC: C07C43/23
Filed: 1958-09-22
Abstract: The invention comprises compounds of the general formula <FORM:0899823/IV (a)/1> where R is a hydrogen atom or an alkyl group, R1 is an alkyl group, there being a total of from 8 to 24 carbon atoms in R and R1 taken together, R2 is a hydrogen atom or a methyl group, R3 is an alkyl group containing 1 to 4 carbon atoms. A is oxygen or sulphur and n is an integer from 3 to about 50 and mixtures of such compounds containing different numbers of ethenoxy groups, the average value of n being from 3 to about 50. The compounds may be prepared by reacting a compound of the formula <FORM:0899823/IV (a)/2> where X is chlorine or bromine with an alcohol of the formula R3O(CH2CH2O)nH in the presence of strongly basic inorganic neutralizing agent, for example potassium hydroxide, at about 50 DEG -70 DEG C.  Alternatively, when an acetal is desired, i.e. R2 is a methyl group, a vinyl ether of the formula <FORM:0899823/IV (a)/3> may be reacted with an alcohol R3O(CH2CH2O)nH in the presence of an acid such as hydrochloric or phosphoric acid, boron trifluoride or its co-ordinated complexes.  Many reactants for both methods are mentioned and examples are given.  Oil-water emulsions containing the novel compounds as emulsifier may be broken on acidification of the emulsion.ALSO:The invention comprises compounds of the general formula <FORM:0899823/IV (b)/1> where R is a hydrogen atom or an alkyl group, R1 is an alkyl group, there being a total of from 8 to 24 carbon atoms in R and R1 taken together, R2 is a hydrogen atom or a methyl group, R3 is an alkyl group containing 1 to 4 carbon atoms, A is oxygen or sulphur and n is an integer from 3 to about 50, and mixtures of such compounds containing different numbers of ethenoxy group, the average value of n being from 3 to about 50. The compounds may be prepared by reacting a compound of the formula <FORM:0899823/IV (b)/2> where X is chlorine or bromine with an alcohol of the formula R3O(CH2CH2O)nH in thepresence of strongly basic inorganic neutralising agent, for example potassium hydroxide, at about 50 DEG C.-70 DEG C.  Alternatively, when an acetal is desired, i.e. R2 is a methyl group, a vinyl ether of the formula <FORM:0899823/IV (b)/3> may be reacted with an alcohol R3O(CH2CH2O)nH in the presence of an acid such as hydrochloric or phosphoric acid, boron trifluoride or its coordinated complexes.  Many reactants for both methods are mentioned. and examples are given.  Oil-water emulsions containing the novel compounds as emulsifiers may be broken on acidification of the emulsion.
Patent GB-257140-A (GB)
Title: Electrolytic method of obtaining an adherent burnish on rustless iron or steel
IPC: C25D5/36
Filed: 1925-11-30
Abstract: 257,140. Pfanhauser, W. A. F., and Langbein-Pfanhauser-Werke Akt.- Ges. Nov. 30, 1925. Metals, pickling; metals, removing; iron, depositing; treatment after electrolysis; coloured surfaces., producing. - Rustless iron or steel is provided with an adherent burnish by electrolytic deposition of a layer of iron and subsequent oxidation, the deposition being preceded by anodic treatment to remove constituents which would prevent adhesion. The anodic treatment may take place in the plating bath, or in a solution of ammonium chloride or sulphate with or without free mineral acids, or in a solution of neutral iron salts together with other neutral conducting salts.
Patent GB-1102035-A (GB)
Title: Water stop assembly for concrete structures
Inventor: HILL DONALD THOMAS
IPC: E04B1/684
Filed: 1965-07-16
Abstract: 1,102,035. Waterstops. EXPANDITE Ltd. 2, June, 1966 [16, July, 1965], No. 30297/65. Heading E1G. A combined stop end and waterstop support, for casting concrete, comprises a thin fin 12 with alternating flanges 14, 15. Two supports are used in opposition with the waterstop 13 between the flanges; the junctions of the fins and flanges being shaped to mate with the thickened central rib 16 of the waterstop. The supports are held in position by further supports 28, 29, 36, 37 which may be welded or clipped in position. The fins may be recessed to locate the supports 28 and for added strength. Holes 38 allow through reinforcing.
Patent GB-1387047-A (GB)
Title: Side-channel blowers
IPC: B60H1/22
Filed: 1972-06-28
Abstract: 1387047 Side-channel blowers J EBERSPACHER 28 June 1972 [14 July 1971] 30320/72 Heading F1C The invention relates to a side-channel blower which comprises first and second housing members 1 and 2 enclosing the impeller 5, the housing member 2 having a peripheral portion which corresponds in shape to the shape of the blades 6 of the impeller, and the housing member 1 having a peripheral portion which defines a side channel adjacent to the blades of the impeller. The member 1 comprises a central portion 8 and a peripheral portion 10 of channel section which together with the hub 5 of the impeller and the outer portion of the member 2 define a toroidal air chamber. Two diametrically-opposed walls 16 are formed in the channel portion 10 so as to divide the portion 10 into two semi-circular grooves. Air inlet openings e 1 and e2 are formed in the radially outer part of the portion 10 respectively adjacent the two walls 16 and on the forward sides of these walls in the direction of rotation of the impeller. Air outlet openings a1 and a2 are similarly formed on the radially inner part of the portion 10 on the opposite sides of the walls 16 to the inlet openings e2 and e1. Air entering the inlets e1 and e2 is discharged through outlets a1 and a2 after passing through 180 degrees around the toroidal chamber. Air passes to the inlets e1, e2 through an inlet duct 11 formed in an outer casing 3. A cylindrical member 4 co-operates with the casing 3 to define an annular passage for the passage of air to the inlet e2. Air discharging from the outlets a1, a2 passes through guides 7 and then discharges through the passage defined by the member 4. In a second embodiment, Fig.2, the blower is arranged for both single and double flow, the cylindrical member 4 being mounted within the outer casing 3 for rotatable movements between two operating positions. The member 4 is formed with a lateral projection 4A. The housing member 1 is formed with two channel-section portions 1A as shown in Fig.3. The walls 16 are inclined so as to provide inlet and outlet openings el, e2, a1, a2 each of triangular form. In one position of the member 4 air passes below the projection 4A to the inlet el  and discharges through outlet a2 to the interior of the member 4; in the second position of the member 4, air passes below the projection 4A to the inlet el also above the projection 4A to the inlet e2, the air flows discharging through outlets a1, a2 to the interior of the member 4. In the first position of the member 4, air is prevented from passing to the inlet e2 by means of a hooded portion 4B of the member 4. In the second position of the member 4 in which the member is rotated clockwise from the position shown in Fig.4, the hood portion 4B is moved from above the inlet e2 and outlet a1 and the opening 4C is moved to a position above the inlet e2. In a further embodiment also capable of both single flow and double flow operation, a radially movable slide member (17), Fig.7 (not shown), is provided.
Patent GB-365088-A (GB)
Title: Improvements in and relating to spindles for milling, drilling, engraving and like machines
IPC: B23Q1/26
Filed: 1930-10-10
Abstract: 365,088. Ball bearings. ROBERTSON, R. and KAPELLA, Ltd., 104, Stoughton Street, Leicester. Oct. 10, 1930, Nos. 30324/30 and 21622/31. [Class 12 (i).] The tool-spindle A of a drilling, milling, engraving, or like machine of the kind having ball bearings adapted to withstand radial and axial thrust is rotatably mounted in a quill B by means of the bearings shown. The inner races G, H are formed in the spindle itself and the outer race I, adjacent the recess F in the spindle which receives the tool, is secured by a screwed ring K whilst the outer race J is pressed upwards by a spring L engaging an annular shoulder M in the quill. The inner races G, H are of part circular section, as shown, and the outer races I, J of conical formation. The conical surfaces of the races I, J preferably face outwards from each other, as shown, and the upper race J may be fixed whilst the race I is axially movable. Dirt is excluded from the quill by an upper cap 0 and by a driving pulley D fixed to the lower end of the spindle A. In assembling, the spring L and the races I, J are inserted in the quill, the spindle A is then introduced and the balls placed in the upper bearing. The spindle is then pressed downwards, against the spring L, until the balls can be placed in the lower bearing, whereupon the ring K, cap 0, and pulley D are attached.
Patent GB-391849-A (GB)
Title: Improvements in and relating to roll film developing apparatus
IPC: G03D13/14
Filed: 1931-11-02
Abstract: 391,849. Film-developing apparatus; film spools. DAVIDGE, LE R. C., 6701, Santa Monica Boulevard, Los Angeles, U.S.A. Nov. 2, 1931, No. 30334. [Classes 97 (i) and 98 (ii).] The film 15, Fig. 1, is wound with a spacing strip on a reel mounted to rotate in a cylindrical tank 5. The reel comprises spoked wheels 8 on a common shaft 9 and united by a film drum 10. The spokes 11 carry blades 12 to cause a flow of liquid through the immersed coil. Alternate blades are disposed at opposite angular inclinations to the face of the reel in order to set up circulation through the immersed coil whichever way the reel is rotating, and in opposite directions at different parts of the coils. The reel is centrally mounted by tapering guides on the sides of the tank and supported on rollers 6 which can be driven in intermittently reversed directions. The spacing strip 13, Fig. 4, has spaced dome-shaped protuberances 14 projecting alternately from each of its faces, on both edges of the strip. The film and spacing strips are wound with only slight tension, whereby the tendency of the immersed layers to sag further ensures uniform development without streaks.
Patent GB-386739-A (GB)
Title: Production of phosphate coatings on metals
IPC: C23C22/10
Filed: 1931-11-02
Abstract: The action of an acid phosphate solution on metals, e.g. iron, steel, zinc, or magnesium, is accelerated by the addition of an oxidizing agent capable of diminishing or removing the hydrogen blanket generated at the surface of the metal.  When coating iron or steel or when using a solution containing ferrous phosphate, only oxidizing agents which do not react to any great extent with the ferrous iron in the bath, such as nitrates, nitrites, sulphites, nitric acid, sodium tungstate, uranyl acetate, chlorates, bromates, iodates, or organic compounds such as methylene blue, can be employed: in other cases common oxidizing agents such as air, hydrogen peroxide, manganates, permanganates, manganese dioxide, chromates, dichromates, and quinone are also satisfactory.  In forming a powder for replenishing a bath the oxidizing agent, e.g. sodium nitrate, is preferably dusted with an inert material, e.g. calcium carbonate or zinc carbonate, to inhibit reaction between the oxidizing agent and the phosphate powder before they are dissolved.  Copper may be added to the solution as an additional accelerator, a bath formed by dissolving zinc dihydrogen phosphate and copper nitrate, and a replenishing powder consisting of zinc dihydrogen phosphate, copper nitrate, and calcium carbonate, being described.  Copper may be added in small quantities to a phosphate solution containing an oxidizing agent such as sodium nitrate.  The solutions may be used at any temperature from room temperature to boiling-point.
Patent GB-299875-A (GB)
Title: Improvements in lathe tools
IPC: B23B27/04
Filed: 1928-10-20
Abstract: 299,875. Krupp AKt.-Ges., F. Nov. 4, 1927, [Convention date]. Void [Published under Sect. 91 of the Acts]. Tools. -Grooving and cutting-off tools for lathes, particularly those with cutting edges of tungsten carbide, have the top surface formed concave at 3 to provide proper rake over the whole length of the cutting edge. The tool is preferably somewhat pointed at 1, and formed with well rounded corners 4.
Patent GB-1109285-A (GB)
Title: Improvements in the moulding from synthetic plastics material of a hollow article having an internal groove
IPC: B29C33/50
Filed: 1965-07-16
Abstract: 1,109,285. Moulding internal grooves in pipes. PLAST-INDUSTRIE S.A. 16 July, 1965 [12 March, 1965], No. 30399/65. Heading B5A. [Also in Division F2] A synthetic plastics hollow article 23, e.g. a P.V.C. pipe coupling, is provided with an internal circumferential groove, e.g. for a sealing device, which is cast into the article by including in the mould (10, 11, 12) (Fig. 1, not shown), a core 13 on which is slidably mounted a flexible or fracturable ring 14, e.g. of acetal or polyamide resin, whereby the core is slidably extracted from the moulded article prior to removal of the ring 14 from the article by inserting a screw into a blind tapped hole (16) thereof and either deforming the ring, if flexible, or applying traction (Fig. 7, not shown) to break the ring at fracture initiators provided by recesses (18) (Figs. 2 and 3, not shown) extending from the tapped hole (16) to adjacent the lateral sides (19, 20) of the ring or by recesses (21) (Fig. 4, not shown) adjacent the tapped hole (22). The insert 14 may be of square, rectangular or trapezoidal section and may form stepped bores or grooves (31, 32) (Fig. 8, not shown).
Patent GB-475784-A (GB)
Title: Improvements in and relating to colour photography
IPC: G03C7/28
Filed: 1936-02-21
Abstract: 475,784. Colour photography. KODAK, Ltd., and CROWTHER, R. E. (Eastman Kodak Co.) Feb. 21, 1936, No. 30467/37. Divided out of 475,786. Drawings to Specification. [Class 98 (ii)] A three-colour record in correct colours is produced from a photographic material having 3 gelatino-silver halide layers inseparably coated on a single support and containing red, green, and blue component records of an object, by processing the blue record to minus red or minus green, the green record to minus blue or minus red, and the red record to minus green or minus blue and printing the resulting record (in incorrect colours) onto a second material having three inseparable gelatino-silver halide layers sensitized respectively to red, green, and blue and processing the blue record in these layers to minus green or minus red, the green record to minus red or minus blue and the red record to minus blue or minus green, no record similarly sensitized in the two materials being processed to the same colour. In a modified method, the material containing the three original records is processed to incorrect colours, printed onto a second material which is then processed to incorrect colours and printed onto a third material which is processed to correct colours, no layer in one of the three materials and only one layer in each of the other two materials being processed to the colour complementary to its sensitivity. In all cases at least two of the records in at least one of the materials are initially uncoloured and are processed by methods of producing colour. The remaining records may be processed either by methods of producing colour or may be initially coloured and the colour destroyed in the image parts. The processing may be carried out using the sensitive material described in Specifications 440,032, 440,089, 441,325, 444,198, 468,560, and 475,786. A table giving the possible variants of sensitivity and colouring is given in the Specification with a rule by which the materials which may be used together are determined. The processing may be carried out as described in Specifications 447,092 and 475,786.
Patent GB-1285867-A (GB)
Title: Method and apparatus for making grooves in light weight concrete in its plastic state
IPC: B28B11/12
Filed: 1970-06-23
Abstract: 1285867 Machining concrete CALSILOX SA 23 June 1970 [26 June 1969] 30520/70 Heading B5A Grooves are cut in the bottom of a block 2 of plastic material, e.g. concrete in the plastic state, by cutter 16. The block 2 in its mould 6 is moved over a station 3 on rails 11. The mould is lifted to the required height by jacks 12, and the bottom 5 is withdrawn, Fig. 1. The cutter assembly 13 is then moved along the bottom of the block to cut the grooves. In Figs. 3, and 4 (not shown), the block is gripped between jaws (24) and moved relative to stationary cutters (30). The cutter blades may have differing forms.
Patent GB-392447-A (GB)
Title: Single spar aircraft wing with auxiliary spars
IPC: B64C3/18
Filed: 1932-10-31
Abstract: 392,447. Aircraft wing structures. DORNIER METALLBAUTEN GES. and DORNIER, C., Friedrichshafen, Lake Constance, Germany. Oct. 31, 1932, No. 30598. Convention date, Dec. 8, 1931. [Class 4.] An aircraft wing having a single main spar a and main ribs b spaced apart at comparatively large distances from one another is provided with auxiliary wing spars c disposed between the ribs b and articulated thereto, one beam of each auxiliary spar being connected at each end to the top and bottom beams of the corresponding section of the spar a by diagonally arranged tension members d, e or diagonally arranged tension or compression members. One end of spar c may be connected to spar a by a compression member or members and the other by a tension member or members. Auxiliary ribs f are yieldingly and/or resiliently connected to the main and auxiliary spars.
Patent GB-1235197-A (GB)
Title: Manufacture of circuit element arrays
Inventor: RUGGIERO EDWARD MICHAEL
IPC: H01L23/522
Filed: 1968-06-27
Abstract: 1,235,197. Thermochromic matrix displays. TEXAS INSTRUMENTS Inc. 27 June, 1968 [3 July, 1967], No. 30648/68. Heading G5C. [Also in Division H1] A method of fabricating a circuit element array comprises forming a plurality of circuit elements adjacent one surface of a monocrystalline semi-conductor wafer with an insulating layer over the said one surface having openings exposing contact areas on the circuit elements, forming conductive patterns on the insulating layer extending into the openings and interconnecting selected circuit elements, applying a parting agent, e.g. photoresist material, on a selected portion only of the conductive pattern, mounting the wafer on a support with an insulating adhesive with the parting agent aligned with an opening in the support and removing the parting agent to leave the selected portion exposed through the opening in the support. A solid state display panel comprises a thermochromic layer 35 in thermal contact with an array of monocrystalline semi-conductor elements 5, 6, 30 mounted on a support 1 via an epoxy layer 28. Beneath elements 5, 6, 30 are heater elements in the form of diode/resistor pairs 11, 12, 13; 14, 15, 15A. A conductive pattern (16 ... 21), Fig. 2 (not shown), interconnects heating elements and is located in the layer 28. The opposite face of support 1 has conductors 33 connected to, e.g., conductor 17 via wires, e.g. 31, through a hole 9 in the support. In fabricating the device the photoresist layer is aligned using an infra-red senser.
Patent GB-1104654-A (GB)
Title: Improvements in or relating to ion exchange materials
Inventor: HUDSWELL FRED
IPC: B01J39/02
Filed: 1965-07-19
Abstract: Hydrated Ta2O5 is used as an ion exchange material for de-ionizing water, e.g. water at 300 DEG  C. from a water-cooled reactor.  The hydrated Ta2O5 is preferably made by fusing Ta2O5 with KOH, dissolving in water and adjusting the concentration of tantalum calculated as Ta2O5 to be not greater than 5 g./litre and precipitating the hydrated Ta2O5 with solid CO2. The Ta2O5 may have a particle size of 5 to 60 B.S.S. mesh.  The hydrated Ta2O5 may be made by fusing tantalite or Ta2O5 with KHSO4, extracting with water then dissolving the melt in oxalic acid, which may contain H2SO4, and precipitating with alkali, e.g. KOH or NH3.  The precipitated T2O5 is washed twice with H2O then 1% KNO3, filtered and dried, then eluted with KNO3 solution. The hydrated Ta2O5 may also be made by fusing Ta2O5 or tantalite with an alkali, dissolving the melt in water and precipitating with an acid, e.g. HNO3 or CO2.ALSO:Hydrated Ta2O5 is used as an ion exchange material for water, e.g. water at 300 DEG C, from a water cooled reactor.  The Ta2O5 may have a particle size of 5 to 60 B.S.S. mesh. The hydrated Ta3O5 may be used for exchange of Na\sWK\sW, NH4\sW, Ba2\sW and La3\sW and radionuclides, e.g. Co-60, Ag-110m, Fe-59, Sb-124, Cr-51, Zn-65 and Hg-203.  The bed may be in the form of a loop.