baber/WOPTO huggingface dataset:
Patent GB-409548-A (GB)
Title: Improvements in or relating to the manufacture of test sheets of paper
IPC: D21G9/00
Filed: 1933-08-14
Abstract: 409,548. Making test sheets of paper. EHRENTHAL, B. P. VON, 10, Sieben, br³nnenpromenade, K÷then, Anhalt, Germany. Aug. 14, 1933, No. 22668. Convention date- Feb. 1. [Class 96.] A uniform sheet of paper for testing is formed by depositing paper pulp on a sieve, removing water by suction, and drying the wet pulp sheet by concurrent heating and pressure without removing the sheet from the sieve. Pulp is supplied to a vessel 1, the sieve 3 in a frame 4 resting on a perforated plate 5, the rim of which rests on a flange 7 at the top of the suction chamber 2. A flanged ring 6 fixed to the vessel 1 is pressed against the flange 7 by clamps 8, and includes an annular compartment, round a perforated part of the wall of the vessel 1, which can be connected by a two-way cock 14 to a compressed air supply from a blower 19, or to a water-pipe 16. Prior to sheet formation, the pulp is uniformly mixed by water, and then made quiescent by air bubbles, the water and air entering through the perforations 12. Suction is applied to the chamber 2 from the blower 19 through a valve 18 &c. and is maintained constant by an automatic spring loaded air inlet 22 and is indicated on a gauge 26. A cone 23 prevents water reaching the blower, the water being drained after the sheet formation, by opening an air inlet valve 25 and a drainage cock 24. The pulp sheet on the sieve 3 and frame 4 is removed and placed on a pile of wire-cloths 45 of graduated mesh and is heated by water from a container 35 passing through a hinged lid 30 which is closed on the sheet, the bottom of the hollow lid comprising an elastic diaphragm, e.g. of rubber which may be faced with wire-mesh or fabric to prevent the sheet sticking thereto, the diaphragm compressing the sheet owing to suction applied by the blower 19 to a chamber 28, also having a pressure gauge, and automatic inlet. The chamber 28 may be water-cooled by a coil 43. Alternatively, the water in the lid may be under pressure and air may be passed through tho chamber 28.
Patent GB-1262547-A (GB)
Title: Alkoxyvinylphosphonodithioates
Inventor: REGEL ERIK
IPC: A01N57/18
Filed: 1969-05-05
Abstract: 1,262,547. Alkoxyvinylphosphonodithioates; alkoxyvinyl phosphonyl dichlorides. FARBENFABRIKEN BAYER A.G. 5 May, 1969, No. 22715/69. Heading C2P.  The invention comprises alkoxyvinylphosphonodithioates of the formula wherein R 1  is methyl, propyl, isopropyl or tbutyl and R 2  and R 3  which may be the same or different are C 1 -C 8  alkyl, phenyl, C 1 -C 4  alkyl, phenyl or chlorophenyl. They may be obtained by reacting the corresponding alkyl vinyl ether with PCl 5  to form a 2-alkoxy-2-chloroethyl phosphorus tetrachloride complex, treating the latter with 2 moles of SO 2  per mole of complex with accompanying or subsequent dehydrohalogenation to form an alkoxyvinylphosphonyl dichloride and finally esterifying the latter with an appropriate mercaptan in the presence of a tertiary amine. The products have nematocidal properties and can be used in admixture with a solid or liquid diluent. The composition may also contain a surface active agent and may be in the form of a dust or in a form suitable for application as an aerosol.  Some compounds of Formula I in which R 1  is ethyl and p-chlorophenyl are also referred to for comparative purposes.
Patent GB-982215-A (GB)
Title: Improvements in or relating to abrasive pellets or articles
IPC: B24D18/00
Filed: 1962-06-13
Abstract: Abrasive pellets having a regular geometrical configuration, a density of at least 2.75 and a structure substantially free from cracks and fissures, comprises, by weight, (a) 50-95%, preferably 70-90%, crystalline alumina having an average crystal size of less than 5m  and most suitably less than 2m , which is tenaciously bonded as a discontinuous phase by a continuous phase of (b) 50-5%, preferably 30-10%, of a glass bonding agent, suitably one comprising 10-25% Al2O3, 50-70% SiO2, 5-15% CaO, 10-20% MgO and up to 3% impurities.  The resultant pellet, which may have the form of a tube, cylinder or prism, has a hardness on Moh's scale of about 9 and a size in the minor dimension of 0.03-0.13 inch.  The pellets are made by blending (a) and the ingredients for (b) in a ball mill with 30-150% water (based on dry batch weight) until the alumina (a) is reduced to the appropriate dimensions, removing excess water in a filter press, extruding the cake into pellets which are then dried, tumbled (if desired) and then fired at 2570-3002 DEG  F.; after firing, the mass is crushed to separate those pellets which have formed agglomerates.  The pellets so obtained may be formed into high-speed, high-strength, heavy duty grinding wheels containing 40-60% by volume of the pellets and 60-36% by volume of suitable bonding material such as various phenol-aldehyde, melamine-formaldehyde and furfurol resins, especially phenol-formaldehyde resin, which may be modified by the inclusion of various vinyl resins, cross-linking agents such as hexamethylene tetramine or paraldehyde.  Plasticizers such as furfural (together with lime), propylene sulphite, trichlorobenzene, cresol or furfurol, and fillers such as cryolite, potassium sulphate and zinc sulphide may also be present, and the wheels heat moulded by suction in a conventional manner.
Patent GB-1273239-A (GB)
Title: Hydraulic arrangement for injection molding
Inventor: HEHL KARL
IPC: B29C45/67
Filed: 1969-05-05
Abstract: 1,273,239. Injection moulding machines. H. HEHL. 5 May, 1969 [22 June, 1968; 28 Aug., 1968], No.22767/69. Heading B5A. Injection moulding apparatus comprises a first hydraulic piston and cylinder unit 5, 10 (Fig. 1) for closing and opening a mould 11, a second hydraulic unit 1, 2 for applying to the closed mould a greater force than the first hydraulic means and a channel 20, 21 interconnecting the chambers 12, 13 on opposite sides of the second piston, and a valve 18 adapted to open the channel whenever the first hydraulic unit is operated. In Fig. 1, to close the mould, hydraulic fluid is admitted to four chambers 14 to move four pistons 10 to the right, thereby moving piston rods 9, four pistons 2, rods 3 and a plate 4 carrying part of the mould. As pistons 2 move to the right fluid passes from chambers 13 to chambers 12 through the channels 20, 21, the valves 18 being spring biased (Fig. 6, not shown) and opening automatically due to the pressure difference between chambers 12, 13. Fluid supplied to the chambers 12 for high pressure closing also holds the valves 18 closed. During mould opening, the valves 18 are opened by pistons 16 which are operated by fluid pressure conveyed thereto from chambers 15 by passages 17.  Modifications.-In Fig. 2 two diagonally disposed cylinders 22 are used for low pressure mould closing in place of the four cylinders 5 used in Fig. 1 while in Fig. 3 (not shown) two cylinders 5 are used. In Fig. 4 a projection 7 supported in a drive sleeve 8 connected to piston 2 together form the first hydraulic unit but perform opposite functions compared with Fig. 1 i.e. the projection and sleeve 8 correspond to the cylinder 5 and the piston 10 respectively. To close the mould, pressure fluid is supplied to chambers 12 and 38 but the greater force applied from the left moves the piston 2 to the right. To clamp the mould, pressure is reduced in the chambers 38. In Fig. 5 all the chambers 12 are connected to each other, as are the chambers 13, and the connecting channels 35, 36 and a single valve 18 are housed in a control block 32 mounted on the block containing the cylinders 1. In Figs. 8-10 (not shown) the valve 18 moves longitudinally in the piston 2 instead of transversely as in Figs. 1, 2. Figs. 11 ot 21 (not shown) illustrate modified constructions of the high pressure piston (41) and valve. In Fig. 22 (not shown) the second hydraulic unit is supplied by two pumps (70, 72) one of which is subsequently used to effect the injection stroke of a reciprocable injection screw (80). High pressure mould clamping is not commenced until a switch 99 has been closed by a bar (88) fixed to the movable mould part.
Patent GB-239879-A (GB)
Title: Improvements in or relating to wall coverings and method of manufacture thereof
IPC: D21H21/28
Filed: 1925-09-12
Abstract: 239,879. Dodman, A. C. Sept. 13, 1924, [Convention date]. Ornamenting. - In the production of colour and other effects on paper during manufacture, colours or other particles, such as aluminium flake, described in Specification 239,880, [Class 20 (iv), Floors &c.], are combined with a carrier or vehicle such as dextrine, glucose, sugar, gum arabic, or other water soluble agglutinant and sprinkled as a powder or in a finely divided state on to the pulp layer while it is in the wire of the paper machine. The colour may be applied uniformly or shade effects may be obtained by varying the quantity of material applied. Variegated or stippled effects may be obtained by applying different colours at the same time in varying proportions.
Patent GB-1367750-A (GB)
Title: Hydraulic servomotor
IPC: F15B9/08
Filed: 1973-05-14
Abstract: 1367750 Hydraulic boosters SOC ANON DBA 14 May 1973 [12 June 1972] 22890/73 Heading F2F An hydraulic brake booster comprises a piston 18 whose movements depend on the pressure of fluid in a chamber 22 controlled by a valve 54, connected to a pressure fluid source such as an accumulator and operated by a push-rod 30 having an end 32 projecting into a cavity 28 connected to the valve by a channel 38 and to the chamber 22 by a narrow passage 50 in the form of a helical groove in the push rod. The valve includes a sleeve 64 movable by means of levers 100 pivoted on a lever 98 pivoted in turn at B on a pin attached to a clevis 106 slidable in a blind bore 108 against a spring 110, the push rod having a slot 112 in which is mounted a pivot 114 having a central groove to receive lever 98. Chamber 22 is connected to the rear brakes and a chamber 20 in front of piston 18 is connected to the front brakes. Due to passage 50 creating a dynamic pressure when the brake pedal is pressed reaction is felt immediately by the driver.
Patent GB-598712-A (GB)
Title: Improvements in gear-box control devices
IPC: F16H63/34
Filed: 1945-09-06
Abstract: 598,712. Controlling change-speed gears. SOC. ANON. DES USINES CHAUSSON. Sept. 6, 1945, No. 23020. Convention date, Oct. 18, 1944. [Class 80(ii)] Change-speed selector-forks 2, 3, slidable on a common overhung rod 1, are interlocked by a drift-pin 14, slidable transversely in the rod 1, and movable into locking engagement with notches 10, 11 in either one of two parallel side-plates 8, 9, welded to or integral with, the respective selector-forks 2, 3, when the ball-mounted control-lever 13 is given a cross-shift movement, so that one limb, e.g. 16, of its lower forked end enters the notch, e.g. 11, of the selector-fork 3 to be operated. Subsequent longitudinal movement of the control-lever moves the selected fork (3) to a gear position, its side-plate 9 keeping the drift-pin 14 in locking engagement with the notch of the side-plate 8 of the other selector-fork 2, the outer surface of which plate (8) guides the other limb 17 of the control-lever fork.
Patent GB-651603-A (GB)
Title: Means for mounting a hub on a shaft
Inventor: HUNTER FRANK
IPC: F16D1/092
Filed: 1948-09-02
Abstract: 651,603. Securing wheels on shafts. P. R. MOTORS, Ltd. Sept. 2, 1948, No. 23124. [Class 80(ii)] The hub 16 of a vehicle or other wheel, gear or ball-race, is centred on its shaft 12 by direct engagement with coned surfaces 13, 14 on the shaft axially spaced by parallel splines 11, the hub-bore being wholly conical with spline-gaps 18 having parallel root surfaces breaking into the cone and preferably deeper than the mating shaft-splines 11 to provide radial clearance between them. The shaft-end is threaded at 21 for a retaining nut.,
Patent GB-240161-A (GB)
Title: Improved process and apparatus for burning cement
IPC: F27B7/00
Filed: 1925-09-16
Abstract: 240,161. Lanhoffer, I. E. Sept. 17, 1924, [Convention date]. Rotary furnaces.-In a wet process for the inanufacture of cement, the raw material in the form of a thick paste is subjected, immediately on its introduction into the furnace, to the action of high temperature gases, so that the quick superficial drying will prevent sticking. In the plant shown the waste gases from a calcining- furnace D are taken through a flue N to the entrance end of the rotary drier S, through which they pass in the same direction as the raw materials. The high temperature end of the drier has an insulating lining, while the low temperature end is fitted with sheet metal stirring plates. The raw material is subdivided during feeding by being forced through a perforated plate P, and the dried material is freed from dust before it is fed through the shoot R to the calciner. In a modification a part only of the waste gases is passed through the drier, the remainder being used for preheating the dried material in a drum, through which the gases and material flow in counter-current. The waste gases may be passed through steam generator C on their way to the drier. Specification 195,585 is referred to.
Patent GB-262861-A (GB)
Title: Improvements in or relating to lighting fixtures
IPC: F21V23/06
Filed: 1925-09-16
Abstract: 262,861. Pollak, J. E., (Miller Co.). Sept. 16, 1925. Plug couplings combined with electric switches. In a combined switch and terminal member a notch or slot 32 on the switch structure 26 engages with a prong or projection 31 struck up from a flange at the bottom of a cupshaped sheet-metal housing 25 so as to give correct alignment and to prevent rotation, the threaded lower end of the switch structure being engaged by a nut 29 and provided with slots to co-operate with a plug 30. The housing is provided with a guide 34 for a pull chain 33 and may be closed at the top by a paper disc 51 and by a metal disc 52 fastened down by inwardly-bent prongs 53.
Patent GB-1389303-A (GB)
Title: Regenerative air preheater comprising a stationary cylindrical regenerative chamber
IPC: F28D17/04
Filed: 1972-05-17
Abstract: 1389303 Thermal regenerators APPARATEBAU ROTHEMHLE 17 May 1972 [18 May 1971] 23148/72 Heading F4K In a thermal regenerative air preheater of the stationary matrix, rotary hood type, in which flue gas from the final boiler flue of a steam generator flows through hoods 1, 2 which are encircled by stationary air entry and exit ducts, and wherein the axis of the regenerative matrix chamber is in alignment with the central vertical axis of the final boiler flue, the diameter D1 of the neck-end of the hood 2 at the gas exit end of the regenerator is from 0À35 to 0À5 times, and the height h<SP>11</SP> of said hood is from 0À2 to 0À3 times, the diameter D of the regenerative mass. Preferably, and as shown, the neck-ends of the hoods 1, 2 are joined to their respective main flue gas duct sections by means of short duct sections 1<SP>1</SP>, 2<SP>1</SP>, which in axial length are less than 0À4 times the diameter D of the regenerative mass. In a modification, the short duct section 1<SP>1</SP> at the gas entry end of the regenerator may be omitted, and the hood end is then joined directly, using an expansion joint 3, to the main flue gas entry duct.
Patent GB-316320-A (GB)
Title: Improvements relating to driving sound films in sound recording and reproducing apparatus
IPC: G03B31/02
Filed: 1929-07-27
Abstract: 316,320. British Thomson-Houston Co., Ltd., (Assignees of Kellogg, E. TV.). July 27, 1928, [Convention date]. Flywheels. - A flywheel for effecting steady motion of a drum over which a sound film is drawn during recording or reproduction comprises an element 26 fixed to the shaft 25 of the drum and a member 35 which influences the element 26 without rubbing contact and which may be freely mounted or driven from the motor which drives the film through a sprocket wheel. As shown, the element 26 carries a copper armature 27 and is driven magnetically, with slip, by poles 36 on a member 35 fixed on a shaft 40 aligned with the shaft 25 and positively driven at a greater speed than the shaft 25. Fluid friction may be employed in place of the magnetic effect. Specification 299,894, [Class 40 (ii), Phonagraphs &c.], is referred to.
Patent GB-1513515-A (GB)
Title: Treatment of fluoride-containing mud produced from acid polishing of lead glass
IPC: C01G21/14
Filed: 1976-06-04
Abstract: 1513515 Basic lead carbonate D SWAROVSKI & CO 4 June 1976 [2 July 1975] 23229/76 Heading C1A Basic lead carbonate is extracted from fluoridecontaining mud obtained from polishing lead glass with etching acid by (a) reacting the mud separated from the etching acid with an aqueous alkali metal carbonate solution and separating off the solution, (b) dissolving the residue from (a) in HNO 3  and adding alkali metal ions to the solution to precipitate alkali metal hexafluorosilicate while maintaining the solution pH below 4 and filtering off the precipitate, and (c) adjusting the pH of the resulting solution to above 6À5 by addition of alkali metal carbonate to precipitate basic lead carbonate. The mud, separated from the etchant, may be washed with water and filtered before reacting with the aqueous alkali metal carbonate solution. The residue from step (a) is preferably washed with water before dissolving in HNO 3 .
Patent GB-419111-A (GB)
Title: Improvements in or relating to jib cranes
IPC: B66C23/90
Filed: 1933-08-22
Abstract: 419,111. Jib cranes. BABCOCK & WILCOX, Ltd., and HOLLICK, F. W., 34, Farringdon Street, London. Aug. 22, 1933, No. 23325. [Class 78 (iv).] A safe-load indicator or power cut-off for slueing cranes is actuated by relative movement under load between a point on the slueing structure and a point on the fixed base. As shown the bed-plate 1 is mounted on wheels to turn on the fixed base 2. The two wheels 6 which are remote from the jib are mounted on non-rotating axles 7 which are pressed towards the base 2 by plate springs 9 bearing against bars 10 on the housings 8, so that when the load on the wheels 6 is reduced by the increased overturning moment of the load on the crane the housings 8 rise relatively to the axles 7. The axles 7 are extended at 7<1> and connected by links 15 to opposite ends of a compensating lever, which actuates a multiplying lever 18. The lever 18 actuates two push-button switches through adjustable tappets and through cushioning springs so as to show a red light and to give an audible signal at two successive predetermined values of the overturning moment. The arrangement may also be used for cutting off power from the hoisting motor or from the luffing motor.
Patent GB-228479-A (GB)
Title: Improvements in or relating to dish washing sterilizing and drying machines
IPC: A47L15/33
Filed: 1923-10-30
Abstract: 228,479. Breton, J. L. Oct. 30, 1923. Plates, dishes, and the like, washing.-A circular dish-holding basket is slowly rotated in a casing past a series of sprays fed by centrifugal pumps, and an air stream produced by a blower, the last pump being supplied with clean rinsing water which flows slowly through the feed tanks of the other pumps to waste. The annular basket 6 is suspended from a wheel 8, and is rotated in an annular casing 1 by a central shaft 11 driven by a motor 13 which also drives the pumps 4 and blower 17. Each pump draws liquid from a separate feed tank and projects it over the dishes through spray pipes 5, the used liquid falling upon inclined parts 21 of the casing floor and being returned to the feed tank by conduits 22, 23. A small stream of boiling water is supplied through a pipe. 19 to the pump 4' for the last. rinsing operation and the partitions 3 between the feed tanks are arranged so that each overflows into the one before, the water thus flowing through the tanks in a direction opposite to the direction of rotation of the basket 6 until, after overflowing at 25 from the tank of the first washing pump 4, 5, it is carried off by a waste-pipe 26. After the rinsing, the dishes pass over the suction pipe 18 of the blower 17 for drying and are removed through an aperture 32 in the cover 33. The pumps are provided with removable gauze strainers 27 and the feed tanks may be emptied through a pipe 29 by valves 30. The water in the tank of the last rinsing pump may be heated by a gas ring and thermometers 31 in the first and last tanks enable the heat to be regulated. Carbonate of soda may be placed in the tank of the central pump so that it will be carried with the washing water. In a modification, the basket rotates on a horizontal axis, the dishes being supported by radial partitions and kept in place by springs which are lifted by a ramp on the casing near the charging and discharging aperture to allow of the insertion and removal of the dishes.
Patent GB-472566-A (GB)
Title: Improved mechanism for tool-relieving in planing machines and the like
IPC: B23D13/00
Filed: 1936-08-26
Abstract: 472,566. Planing-machine tool-boxes. STIRK, J. G., and STIRK, J. R. L. Aug. 26, 1936, No. 23380. [Class 83 (iii)] A planing machine has the tool box or clapper 1 pivoted at 2 to a disc 3 which is angularly adjustable in a circular slot of a slide 6 which in turn moves along a guide 7 which swivels on the usual saddle. The clapper is actuated from a solenoid 8 through a rod 9 and bell-crank 10, the mechanism being such that the clapper may be swivelled through 360‹ by adjustment of the disc 3 without interfering with the relieving movement about the axis 2. In some cases the disc 3 may be rotated automatically at each movement of the rod 9.
Patent GB-865556-A (GB)
Title: Improvements in or relating to lamps
IPC: B60Q1/26
Filed: 1959-07-08
Abstract: 865,556. Lamps. EISEMANN G.m.b.H. July 8, 1959 [July 19, 1958], No. 23416/59. Classes 75(2) and 75(4). [Also in Group XXV] A lamp for identification purposes comprises a casing 1 carrying an electric light source 2, a transparent hood 3 covering the light source and a rim 5 connecting the hood to the casing, the rim engaging one side of the casing and being secured to the casing at the other side by a retaining member 7 carried by the rim and extending into the operating region of a catch 11 so that the catch can move a part 10 of the member 7 into the locking position. The retaining member consists of a wire 9 pivoted at both ends to the rim and terminating in a hook-shaped loop 10 which is engaged by a catch 11 on a shaft 12 when this is rotated and is thereby brought into position to engage the shaft.
Patent GB-273937-A (GB)
Title: Improvements in knee grips for use on motor cycles
IPC: B62J25/00
Filed: 1926-09-23
Abstract: 273,937. Douglas Motors, Ltd., and Pullin, C. G. Sept. 23, 1926. Knee grips for motor cycles. Resilient pads 5 are mounted on plates 10 carried by the upturned ends 3 of a steel strip 2 which is adjustably secured to the frame tube 6.