baber/WOPTO huggingface dataset:
Patent GB-565969-A (GB)
Title: Improvements in the de-tanning of chrome-tanned leather
IPC: C14C3/32
Filed: 1943-05-12
Abstract: 565,969. Detanning leather. LEINER, A. May 12, 1943, Nos. 7540 and 11154. [Class 76] In a process for de-tanning chrome-tanned leather by immersion in a weak alkaline solution followed by treatment with a weak acidic solution, a soluble inorganic salt is incorporated in the acid solution to reduce or prevent swelling of the leather material. The weak alkali may be a 2 per cent suspension of lime, or a solution of caustic soda or sodium carbonate, and may have included in it 5 per cent of bleaching powder or a small amount of hydrogen peroxide. Weak sulphuric or hydrochloric acid may be used for the acid treatment. Sodium chloride and sulphate are the preferred added salts, other examples being chlorides, sulphates, phosphates and acid phosphates of potassium and ammonium, chlorides of calcium and magnesium, sodium acid phosphate, acid sulphates of sodium and potassium, and ammonium, sodium, or potassium alums. From 1-7 per cent by weight of the salt may be used, the preferred amount in the case of sodium chloride or sulphate being 5 per cent. A solution of an acid salt, such as sodium bisulphate, may be used in place of the acid and salt solution. The acid and alkali treatments may be repeated to extract more chrome from the leather. Examples describe the treatment of chrome splits and chrome shavings, in the latter case the acid treatment being followed by washing with 5 per cent salt solution, then with a 3 per cent soda ash solution and finally with 1 per cent hydrochloric acid. The acid liquors and the 5 per cent salt solution washings may be treated with caustic soda solution and filtered to recover the chrome.
Patent GB-702735-A (GB)
Title: Cylindrical chaff-cutting machine with a transversely arranged fan
IPC: B60T17/04
Filed: 1953-03-19
Abstract: 702,735. Chaff cutters. MASCHINENFABRIK FAHR AKT.-GES. March 19, 1953 [April 25, 1952], No. 7596/53. Class 5 (1) The cutting cylinder 2 of a chaff cutter 2 is rotated from the drive shaft 14 through gearing which includes a free wheel mechanism whereas the delivery fan 10 is driven directly from the shaft 14 (by belt and pulleys 23, 24) ; 3 is the stationary counter-blade. The shaft 14 is rotated from the power take off of a tractor, and drives a sliding sleeve 20 thereon, having clutch claws 19 which are urged by a spring 21 into driving engagement with similar claws 18 on a bevel gear 16 loose on the shaft 14. The angle a of the claws 18 is so steeply inclined as to transmit the necessary torque. Bevel wheel 16 drives the bevel gear 17 of the cutter shaft 1. The thrust of the spring 21 can be varied by screwing in or out the bearing 22 which acts as an abutment for the spring 21, and which is screw threaded into the side of the gear box 13 for that purpose. Feeding.-A belt conveyer 7 receives the stalks from a crop mower and passes them between feed rolls 4, 5 and 6 to the cutter. An incline 8 passes the chaff to the delivery fan 10.
Patent GB-918484-A (GB)
Title: Production of bromobutenes
Inventor: GASSON EDWARD JAMES
IPC: C07C21/14
Filed: 1960-03-04
Abstract: Concentrated aqueous hydrobromic acid (e.g. 35-50% by weight) is obtained by scrubbing with aqueous hydrobromic acid the vapour mixture formed by the action of bromine vapour on butene-2 vapour (see Group IV(b)).ALSO:Bromobutenes are prepared by heating butene-2 vapour with bromine vapour, at least one mole of butene-2 being present per mole of bromine, (e.g. at 300-430 DEG C.), cooling, and scrubbing the hydrogen bromide from the vapour mixture with aqueous hydrobromic acid.  Dibromobutanes may also be formed.
Patent GB-256517-A (GB)
Title: An improved process for the loading of felt hat bodies
IPC: D04H1/08
Filed: 1926-03-19
Abstract: 256,517. Gomperz, T. Feb. 18, 1926, [Convention date]. Bodies, felting. - Felt hats are loaded with finely divided fibres, preferably animal fibres, which are added during the fulling or stamping of the hat bodies.
Patent GB-1031328-A (GB)
Title: Receptacle
IPC: B65D21/04
Filed: 1965-02-23
Abstract: 1,031,328. Receptacles. BANNER METALS Inc. Feb. 23, 1965 [March 9, 1964], No. 7715/65. Heading B8P. A nestable and stackable receptacle of a plastics material or sheet metal has inwardly facing channels 20 on at least two walls, with lower shoulders 22, and external projections 30 which are received in said channels for nesting. The top wall above the channels 20 has projections 34 which are received in slot 32, Fig. 2 (not shown) in the undersides of the projections 30 for stacking. Intermediate shoulders 40, 42 in the channels 22 may support eared trays.
Patent GB-192310-A (GB)
Title: Improvements in or relating to junction pieces for spring driving bands for pulleys or the like
IPC: F16G11/00
Filed: 1922-03-16
Abstract: 192,310. Pichault, S. March 16, 1922. Addition to 152,957. Belt fastenings.- A junction piece for connecting the ends of a spring driving band formed of helically coiled wire, as set forth in the parent Specification, is modified for use with a band formed of a plurality of helically coiled wires. For this purpose, the junction piece 1, comprising a cylindrical solid or hollow rod or sleeve, is externally grooved so as to receive by screwing, either in the same groove or in separate grooves 2, 3, 4 as shown, the ends of the intercoiled wires forming the band, the extremities 5, 6 of each coil being turned in and connected to the junction piece by insertion thereof into a hole 7, or into separate holes for each wire, pierced at a suitable place in the junction piece.
Patent GB-1176601-A (GB)
Title: Improvements in or relating to borehole-lining devices.
Inventor: WOLF HANS
IPC: E21B3/025
Filed: 1968-02-16
Abstract: 1,176,601. Drilling. H. WOLF. 16 Feb., 1968, No. 7817/68. Heading E1F. Apparatus for lining a bore hole with a pipe I comprises a clamp 2 for the pipe, meansfor example, hydraulic or pneumatic cylinders 3, 4-on a support 12 for oscillating the clamp 2, a piston 5 connected to both the clamp 2 and the support 12, and a cylinder 6 slidable on the piston and connected via links 7, 8 with feet on the ground. Guide rods 10, 11 extend upwardly from the feet through guide tubes 16 secured to a disc (15) rotatably connected to the bottom of clamp 2. The support 12 may have a member extending rearwardly therefrom and passing through a guide member anchored in the ground.
Patent GB-113210-A (GB)
Title: Improvements in Ball Bearings.
Inventor: BURSELL OLOF HENNING
IPC: F16C43/06
Filed: 1917-06-01
Abstract: 113,210. Bursell, O. H. June 1, 1917. Ball bearings. - To enable the balls to be inserted into a bearing having solid race rings with one or two rows of balls, the lateral shoulders confining the balls on one or both sides of both rings are cut away to the form of eccentric cones or cylinders, the points of greatest eccentricity 5, 7, Fig. 3. extending approximately into the deepest portions of the race grooves. When the two points 5, 7 are brought opposite to one another, the balls can be inserted by slight pressure accompanied if necessary by expansion of the outer ring by heat. - The eccentric surfaces are preferably so arranged that after one row of balls has been inserted, displacement of one ring through a right-angle is required to insert the other row. Fig. 18 shows a. modification in which the margins of both races are eccentric circles and a single race 6 at one part of each ring merges into two races 8 at the opposite part: the balls are inserted when one of the rings is turned through 180 degrees from the position shown.
Patent GB-527705-A (GB)
Title: Improvements in or relating to firelighters
IPC: C10L11/04
Filed: 1939-03-13
Abstract: 527,705. Firelighters. DREW, A. E., and SEDGWICK, R. G. G. March 13, 1939, No. 8021. [Class 50] A firelighter comprises a quantity of adsorbent waste material from wood pulp mills in comminuted form, and held in shape by a wrapping or casing, e.g., of newsprint. Sawdust, wood chips, naphthalene, coal particles or paper may be added. The firelighter may be formed by extrusion into the wrapping and may have a further oil-proof covering, e.g., of the material known by the Registered Trade Mark " Cellophane." The wrapping may be of thin strips of wood secured by adhesive or wire stitches.
Patent GB-247765-A (GB)
Title: Improvements in boilers for heating water
IPC: F24H1/28
Filed: 1925-03-26
Abstract: 247,765. Wilson, H. H. March 26, 1925. Heating water; internally - fired boilers. - A boiler for domestic purposes comprises a corrugated waterheating cylinder B having a domed end and enclosed in a boiler A heated by a furnace c and flues c<2>. The water enters by a pipe H and is preheated by a coil e in the water space before being delivered to the cylinder B by a pipe F. The heated water leaves the cylinder by a pipe at its upper part. The Provisional Specification states also that rocking bars in the grate may be operated by a hand lever in front of the boiler and refers to Specification 16405/99.
Patent GB-1219233-A (GB)
Title: Switching arrangements for numerical control systems
Inventor: HABIGER ERNST
IPC: G05B19/23
Filed: 1969-02-14
Abstract: 1,219,233. Programmed electric control. STARKSTROM-ANLAGENBAU KARL MARX-STADT VEB. Feb. 14, 1969, No.8116/69. Heading G3N. An arrangement for determining positional values of appropriate hand on reverse sides of workpieces comprises a forward-reverse counter 8, Fig. 3, and a reverse counter 10 the latter preceded by a pulse divider 9 and both connected to a pulse source 6 via a gate 7 which is only open during a correcting operation, with input stores 1-3 setting the counters to the values of the path information, and a direction circuit 4 for deriving the counting direction from stores 1, 2. The counter 8 is associated with a device which emits a signal when the counter is at zero, and a further direction circuit 11 is provided for deriving a direction decision from this signal and the signs of information in stores 1, 2. In Fig. 1x is the distance from a workpiece reference position of a hole 60 to be bored and xo is the distance from this position from a machine table reference. After the hole 60 has been bored a corresponding hole must be bored on the opposite side of the workpiece to which end the table is rotated about its reference axis hence the tool 40 must be moved through a distance  x 1 where  x <SP>1</SP> = -2x+2xo. The sign of 2x is fed to store 1, the magnitude 2x is fed to counter 8, the sign of xo is fed to store 2 and the magnitude of xo to store 3. The contents of the latter are fed through a gate 5 to reverse counter 10 which provided it is not empty enables a signal to be emitted from a circuit 12 to a gate 7 which is also gated by a signal KA from a programme and if these signals are both present, pulses from a source 6 are passed through a divide by two circuit 9 to the reverse counter 10. The signs in stores 1 and 2 are detected by circuit 4 which if alike switch counter 8 to forward counting or if unlike to reverse counting and to the count 2x already in store 8 a number of pulses equal to 2xo is added or subtracted. When counter 10 is empty circuit 12 does not emit a signal hence gate 7 is blocked. The passage through zero of counter 8 is detected by a circuit 11 which also has inputs from stores 1, 2 circuit 11 emitting a signal to a sign detecting circuit 13 having an output VX<SP>1</SP> determining the tool direction. An output A from counter 8 determines the range of movement. Circuit 13 is gated by an input WR from the programme where a number of processing positions are involved.
Patent GB-147250-A (GB)
Title: An electric coin-operating bioscope
IPC: G07F17/16
Filed: 1919-04-01
Abstract: 147,250. Davey, J. M., and Green, S. M. April 1, 1919. Exhibiting moving pictures.-A coin-freed kinematograph apparatus is provided with electrical means operated by the film for causing the rewinding of the film on its completion and the setting of the apparatus in readiness for a renewed operation. The picture viewed through an eyepiece A<2> is projected upon a screen E by a lamp C', the light from which passes through the kinema machine D. The circuit of the lamp C' and a motor C<2> which drives the machine D and a cooling-fan 9 is made by the operation of a mercury switch B by a coin falling on the operating-lever B', which completes the circuit of an electro-magnet ON<1> the armature H of which is attracte'd and completes the main circuit through contacts T', T<6>. The film is wound off a spool R and on to a spoon R<1> driven by a belt passing over pulleys 6, 7. The film is provided at its end with a slot through which a contact J<1>, being one of a pair, of insulated contacts J, J', is adapted to pass to make contact with a metal sprocket D'. When the end of the film is reached, a circuit is thus completed through an electro-magnet ON of a switch F which attracts an armature H<1> to bridge contacts T<7>, T<12> and energize a solenoid Z. The solenoid core is co-axial with a spindle carrying pulleys S, S<1> and one part of a clutch Q which is engaged with the counterpart on the motor shaft and drives the pulleys S, S<1> to turn the kinema machine in the reverse direction through pulleys S, D<2>, and rotate a fan 9 through pulleys S<1>. The forward-drive pulley D<14> is loose on a shaft 5 and operates the machine through a clutch 10, which allows the reverse motion of the pulley. The shafts and pulleys of the spools R, R<1> are provided with appropriate slip clutches. When the film is sufficiently wound, an aperture on the other side of it allows the contact J to engage the sprocket, thus completing a circuit, which throws the armatures H, H<1> of the switches into the off position, and cutting off the supply of current from the motor &c.
Patent GB-936381-A (GB)
Title: Radiant heating unit
IPC: C21D9/00
Filed: 1962-03-02
Abstract: 936,381. Radiant heating units. HAZEN ENGINEERING CO. March 2, 1962 [July 7, 1961], No. 8177/62. Class 51(1). A radiant heating unit with a triple tube construction comprises an outer casing 1 with a flue outlet 7, an air duct 8 formed with longitudinally spaced perforations 20 and a fuel tube 17. The duct 8 which has a flared portion 10 and a flange 11 seating against sealing material 12 carried on a bracket 13 is held within the outer casing by spacers 16 and the fuel tube is carried within the perforated duct by spiders and has a small tubular portion 17a. The duct 8 has a deflector plate 21 and the perforations therein may be spaced to form a helix. The unit may be subject either to the suction of a fan connected to the flue outlet or the pressure of a blower connected to the inlet passage 15. Ignition is by means of a spark plug 18. The elliptical outer casing is fixed to the wall 2 by a clamping ring 3 incorporating sealing material 4.
Patent GB-372890-A (GB)
Title: Improvements in or relating to inertia governors
IPC: G05D13/00
Filed: 1931-03-17
Abstract: 372,890. Inertia governors. ECCLES, W., 15, High Lane, Chorlton-cum-Hardy, Lancashire, and ASSOCIATED ELECTRICAL INDUSTRIES, Ltd., Crown House, Aldwych, London. March 17, 1931, No. 8236. [Class 57.] In inertia governors of the type described in Specification 301,525, [Class 57, Governors &c.], the isolated member 410 is provided with a rim 5 forming an annular channel in which is fitted a ring 4 provided with abutments 6 dividing the channel into compartments. A ring 1 is attached to the flywheel 413 by pins 2 and is provided with projections 7 located in the compartments which are filled with damping fluid. The projections 7 are arranged with passageways 8 the cross section of which may be varied by screws 9. Plugs 10 enable screws 9 to be accessible. Alternatively the passageways may be provided in the abutments 6. Damping fluid flows from the channel 432 under centrifugal force through the non-return valves 11.
Patent GB-1479706-A (GB)
Title: Aerosol foams
IPC: C11D17/00
Filed: 1975-02-27
Abstract: 1479706 Aerosol foam dispensers; aerosol shaving foam WILKINSON SWORD Ltd 27 Feb 1976 [27 Feb 1975] 8249/75 Headings C4X and C5D An aerosol foam dispenser comprises a pressurized container equipped with a dispensing head and a manually operable valve, and contains therein an aqueous soap-free surfactant concentrate (an aerosol shaving foam), and emulsified or readily emulsifiable therewith, a gaseous aerosol propellant in liquid phase, the concentrate consisting essentially of water and (i) from 1-15% by weight based on the weight of the concentrate of a nitrogen-containing surfactant selected from ethylene oxide adducts of long chain alkylamines, being adducts of the formula where R is a straight chain C 12 -C 18  alkyl group and p and q are both positive integers of from 1-30 and totalling from 10-31; ethylene oxide adducts of long chain fatty acid monoamides, being adducts of the formula where R is a straight chain C 12 -C 18  alkyl group and n is an integer of from 3-9; an imidazoline of the formula where R<SP>1</SP> is a straight chain C 12 -C 14  alkyl group; long chain alkylamine oxides of the formula where R is a straight chain C 12 -C 18  alkyl group; and long chain alkyl-group-containing betaines of the formula where R<SP>11</SP> is a straight chain C 11 -C 17  alkyl group, each R<SP>111</SP> is a C 1 -C 3  alkyl group, Z is -CH 2 - or -CH 2 CONH(CH 2 ) x - group, where x is an integer of from 2-5, and t is an integer of from 2-5; (ii) from 0À5-6% by weight of the concentrate of a water-soluble straight chain fatty alcohol containing from 12-18 carbon atoms; the combined HLB value of the components (i) and (ii) in the concentrate being in the range 8-18 and the weight ratio of the nitrogen-containing surfactant to straight chain fatty alcohol being in the range 0À5 : 1 to 12 : 1. The dispenser may further contain up to 15% by weight of the concentrate of a synthetic surfactant compatible with the nitrogen-containing surfactant and being other than an alkali metal or alkanolamine soap, or straight chain C 12 -C 18  alkyl sulphate, sulphonate or ether sulphate or a phenyl or naphthyl sulphate, sulphonate or ether sulphate containing straight chain C 5 -C 12  alkyl substituent on the aryl group, or an N-acyl sarcosinate.
Patent GB-856428-A (GB)
Title: Improvements in or relating to the manufacture of inorganic pigments
Inventor: HARPER COLIN STUART
IPC: C09C1/12
Filed: 1956-03-16
Abstract: In a process for producing a pigment by firing cadmium sulphide with mercury sulphide at a temperature of over 400 DEG C., the cadmium and/or mercury sulphide is formed in situ during the firing reaction by the interaction of sulphur with cadmium oxide and/or mercury oxide, or with cadmium and/or mercury compounds which decompose under the influence of heat to produce the oxides.  When only one of the sulphides is so produced, the other may be produced by precipitation; if the sulphate of the metal, and barium sulphide, are used, barium sulphate is co-precipitated giving a pigment of the lithopone type. The firing may be carried out under pressure and/or in the presence of an inert gas. The preferred ratio of mercury sulphide to cadmium sulphide is from 10:90 to 30:60.  Specification 791,098 is referred to.
Patent GB-240378-A (GB)
Title: Improved method of manufacturing decorated and mercerised woven fabric
IPC: D06M11/11
Filed: 1925-03-28
Abstract: 240,378. Stevenson, R., and Wakefield, F. W. March 28, 1925. Figured effects on chemical treatment, weaving to produce.-Fabrics composed of animal and vegetable threads are treated with an alkaline solution of such strength and temperature that the animal threads are removed and the vegetable threads are simultaneously mercerized, thereby producing a decorated or openmorh effect as determined by the manner in which the vegetable threads are disposed in the fabric. The alkaline liquid may be caustic potash, or caustic soda of 20-40‹ Tw., and the treatment may be performed at 180‹ F. After the fabric has been passed a number of times through the alkali, it is washed, soured, again washed, and dried.
Patent GB-541088-A (GB)
Title: Improvements in or relating to methods of constructing resilient curved structures, such as structural envelopes, from flat, resilient sheet material
IPC: B21D53/00
Filed: 1940-05-09
Abstract: 541,088. Tanks. HART, N. May 9, 1940, No. 8397. [Class 69 (i)] [Also in Groups XXXIII], X, XVII and XXI] Resilient structures having curved surfaces such as fuel tanks, are constructed from flat resilient sheet material without the use of frames, moulds or presses and without stressing the material beyond its elastic limit, the separate sheets or parts of the same sheet having non-rectilinear centre lines and their borders so shaped and joined together edge to edge that the resultant structure assumes the required curvature owing to the stresses set up while bringing the edges into contact. The curved edges utilized are selected from well-known mathematical curves. Fig. 6 shows a dome-shaped structure formed from spiral strips based upon the logarithmic spiral. The material may be metal or wood such as plywood. Fig. 10 shows a dished disc formed from a flat annulus 76 and a flat disc 74 the diameter of the disc 74 being slightly larger than the hole in the annulus so that when the disc is forced into the hole the two parts assume the curvature shown. A butt strap 82 is used at the joint. The disc may be reinforced by a separate rigid member 86. In all cases the curvatures of the edges to be joined are dissimilar before the edges are brought into contact and the internal stresses on opposite sides of the joint consequently differ. Specification 468,280, [Group XXXIII], is referred to.
Patent GB-492611-A (GB)
Title: Improvements in or relating to containers and dispensing devices for powdered soap and the like
IPC: A47K5/10
Filed: 1937-03-22
Abstract: 492,611. Powder distributers. REEVE, A. C. March 22, 1937, No. 8407. Addition to 437,959. [Class 18] In a distributer according to the parent Specification, the lower end of the inner container 12 is provided with a cap 14 which, in the lowered position of the container, engages with and closes the bottom part of the outer casing. The inner surface of the cap may be formed with ribs which bite into the material of the carton or container 12. Powder is forced through the perforations 17 on to a flange 16 on the cap and the air forced from between the container 12 and the casing blows it out of the distributers. The operating rod 20 slides in a bush 19 which is attached to the casing by ribs 18 with bevelled upper edges. The casing comprises two parts screwed together, each part being provided with a flange 25, 26 between which is a channel housing a metal strap 27 clamped to a moulded mounting bracket 28. Alternatively, the distributer can be suspended by a perforated lug 32, or it can be mounted in an aperture in a shelf by clamping the shelf between the flanges 25. The distributer is made of moulded plastic material or, according to the Provisional Specification, of metal.
Patent GB-338835-A (GB)
Title: Boilers for toy locomotives and horizontal steam engines
IPC: A63H19/14
Filed: 1930-03-15
Abstract: 338,835. Bing Werke vorm. Geb. Bing Akt.-Ges. Jan. 23, 1930, [Convention date]. Steam generators.-A boiler for a toy locomotive or horizontal stationary engine is provided along its underside with a channel 7, that is covered from the front end to about midway of its length by a plate 8 to form a flue leading to the smoke tube 5. The draught through the flue is increased by the exhaust from the cylinders being discharged from a pipe 9 into the smoke tube.