baber/WOPTO huggingface dataset:
Patent GB-384255-A (GB)
Title: Improvements in or relating to projectors comprising automatic picture changing means
IPC: G03B23/04
Filed: 1932-09-22
Abstract: 384,255. Changing signs. OSCHWALD, A., 67, Stampfenbachstrasse, Zurich, Switzerland. Sept. 22, 1932, No. 26372. Convention date, Sept. 24, 1931. [Class 3 (i).] Optical-projection apparatus.-Transparencies D, which may be spring-held in frames, are stacked in a vertical magazine 3, and the top transparency is shifted sideways by a pusher 21 carried by an arm 20 pivoted at 19 and oscillated by a retracting spring 24 and a cam 23 mounted on a shaft 9 rotated through gearing 10, 11 by a motor 12. A plurality of transparencies D lie in a channel 2, and the end one is forced up till it slides down a shoot 5 to rest on a pivoted plate 15 oscillated vertically by a cam 8 on the shaft 9. The plate 15 presses the transparency against wedge-shaped pins 16 which are forced back to allow the transparency to pass, and then are returned by springs to support the weight of the stacked transparencies. The light beam passes through an aperture in the channel 2, being directed by an inclined mirror S on to a screen. The magazine 3 is in two telescopic parts 3a, 3b to accommodate a smaller or larger number of transparencies, and the shoot is also in two mating parts each pivoted at its end. The plate 15 and the cam 8 move up and down with the magazine part 3b, and are held in position by a clamp 7. The motor 12 may be controlled by a distant manual switch. Fig. 9 shows a modification in which two magazines 30, 31 are employed. A pusher 43 actuated by an eccentric 44 transfers the transparencies D from the bottom of magazine 30 to the bottom of magazine 31. The magazines 30, 31 may be made telescopic to accommodate varying quantities of transparencies.
Patent GB-1469755-A (GB)
Title: Slide rules
IPC: G06G1/06
Filed: 1974-05-30
Abstract: 1469755 Slide rule cursor BLUNDELL HARLING Ltd 30 May 1974 [1 June 1973] 26376/73 Heading G4B A cursor for a slide rule or one half of a doublesided cursor for a double-sided slide rule comprises two flanges 4 x 5 protruding from one side of a transparent connecting web 1, the side being planar between the flanges, which form a corresponding male and female pair having on their opposing faces tongues 6<SP>1</SP> and 8<SP>1</SP> that are parallel to each other and to the planar part of the web for engagement in edge grooves 7 of a slide rule stock 2. The device may be used singly as a one-sided cursor, or else combined with a second similar device to form a double-sided cursor in which case the flanges are used to interlock the two, respective sections "A" and "B" coming together and the various tongues being aligned for engagement in edge grooves in the stock of a double-sided slide rule. The ends of the flange 5 are cut at 45 degrees to retain a metal spring (not shown).
Patent GB-173281-A (GB)
Title: Improvements in or relating to pasteurising and like apparatus
IPC: A23L3/20
Filed: 1920-09-15
Abstract: 173,281. Lean, C., (Burkart, Rosenbusch, y Cia). Sept. 15, 1920. Sterilizing liquids.-In a pasteurizing-device for liquids of the type in which the treated and untreated liquids flow in alternate spaces in piles of plates, thus cooling the treated liquid and preheating the untreated liquid, the partitions through perforations in which the liquids enter the spaces between the plates are so arranged that the liquid flows in a fanwise fashion; particular arrangements of plates for the heater and cooler are described. The construction of the cooling and preheating pile is shown is Figs. 3 and 4. The untreated liquid flows through a strainer 7 into a space f in the plate 12 (I) separated from the remainder of the plate by partition 18, which is perforated and of a curved shape, so that the liquid passes through it in a fanwise fashion, that is in a set of diverging streams into the space e. From the space e the liquid flows through perforations in partitions 16 and 17 into a space a, the bottom of which is cut away to allow the liquid to pass from the plate 12 (I) and through a similar passage in the plate 12 (II) to the corresponding space a in the plate 12 (III), which it traverses in a direction opposite to that in which it traversed plate 12 (I), leaving through the bottom of the space f, and so on to the bottom of the pile, whence it passes by the pipe 5 to the heater. The heated liquid enters by a pipe 4, traverses the spaces not occupied by the incoming liquid, and leaves through a fitting 9. The heater consists of a casing 21, Fig. 6, containing water and provided with heating pipes 24, arranged above a fire-grate 25, or adapted to be steam-heated. The plates forming the heater are shown in Fig. 7. The preheated liquid enters the space c' in the top plate by the pipe 5 and passes down the spaces c' in the different plates to the bottom plate where. it passes to the other spaces in the plate, and thence through the space a' into the bottom plate but two, in which it passes through perforations in the partitions 29, 30 to the space e<1>; thence to the corresponding space in the bottom plate but four, which it traverses in the opposite direction, and so on to the top plate, which it leaves by the pipe 4, whence it passes to the heat-interchanging pile. The spaces in the plates unoccupied by the liquid to be treated are occupied by the water contained in the casing 21. The whole may be mounted on wheels.
Patent GB-443283-A (GB)
Title: Improvements in and relating to speed change gearing
IPC: F16H61/02
Filed: 1935-09-24
Abstract: 443,283. Variable - speed gearing. STOECKICHT, W., 3, Erikastrasse, Solln, Munich, Germany. Sept. 24, 1935, No. 26463. Convention date, Sept. 24, 1934. [Class 80 (ii)] In epicyclic gearing in which the speed of the driven shaft 5 is increased by braking a member (in the form shown, the sun pinion 2) and in which direct drive is obtained when a lockable free engine clutch 6 is in coupling position, a dog clutch 7, 8 is used to effect the locking of the free engine clutch. The pinion 2 is loose on the driving shaft 4 and is secured to a brake device 3 which is interconnected in any suitable way with the clutch 7, 8 so that when the one is engaged the other is free. When the pinion 2 is braked the internal gear 13 and shaft 5 are driven at the higher speed and the clutch 8 is kept out. When the lever 10 is moved to the right to release the brake, the clutch 6 acts to give a direct drive. The claws 14 are bevelled as shown to prevent engagement until synchronism is reached between the disc 12 (carrying the planets 1 and the clutch member 7) and the member 8 secured to the gear 13 and feathered on the shaft 5. In this device the clearance between the claws of the dog clutch may be greater than usual.
Patent GB-950802-A (GB)
Title: Improvements in or relating to the treatment of hydrazinium compounds
IPC: D06M13/338
Filed: 1962-07-10
Abstract: Hydrazinium salts containing at least 16 carbon atoms are recovered from their aqueous solutions by (1) heating the solution at 55 DEG to 65 DEG C. until solidification is substantially complete, (2) melting and agitating in the molten state, (3) cooling to 15.5 DEG to 27 DEG C. and pulverising then, (4) heating at 45 DEG  to 55 DEG C. to remove residual solvent, at least steps (3) and (4) being carried out in a vacuum rotary dryer. An example describes the recovery of 1, 1-dimethyl-1, 1-perhydrotallow - hydrazinium chloride.
Patent GB-190569-A (GB)
Title: Improvements in brush stock holders for stock filling machines
IPC: B27M3/24
Filed: 1921-10-07
Abstract: 190,569. Briton Brush Co., Ltd., and Page, E. B. Oct. 7, 1921. Drilling brush stocks.-A brush stock holder is mounted on a plunger movable to and from the drilling tool and is adapted to rotate about the axis of the plunger and also about two other axes at right angles thereto and to each other, the two latter axes being different distances from the working face of the holder. The stork-holding plate 4 is carried by a bar 5 which is slidably supported in a boss 6 pivoted to a head piece 7. The head piece is mounted to rotate about an hoiizontal axis on pivots carried by a sleeve 9 rctatably mounted on the plunger 1. The plate 4 is preferably drilled with countersunk holes to receive a pointer 3 fitted coaxially in the end of the plunger.
Patent GB-895135-A (GB)
Title: Gear honing machine
IPC: B23F19/05
Filed: 1960-07-29
Abstract: 895,135. Gear-finishing. NATIONAL BROACH & MACHINE CO. July 29, 1960 [Sept. 14, 1959], No. 26552/60. Class 83 (3). A gear honing machine comprises means to effect intermittent very small adjustments of the tool or work supports parallel to the axis of the tool support. At one end of the stroke of the work slide, a switch is actuated to cause a fluid-pressure piston 83 acting against a spring to operate a ratchet 84. The ratchet turns a cam 74 and advances the tool spindle 60. The spindle is rotated by a gear 54, a sleeve 58 and a key 62. During honing, the work is urged towards the tool by fluid-pressure means. The actuation of a forty-tooth ratchet may cause, say, twenty adjustments of the hone in one direction and twenty in the reverse direction, during one revolution of the cam 74, thus ensuring even wear of the hone teeth.
Patent GB-171558-A (GB)
Title: Improvements in jacketed hollow ware
IPC: A47G19/12
Filed: 1920-09-17
Abstract: 171,558. Horton, P. Sept. 17, 1920. Receptacles provided with cooling-means.-A receptacle for keeping liquids cool or warm consists of an inner container 1, Fig. 3, suspended in an outer casing 2 so as to provide a free space between the container and casing, a hollow handle communicating with this space, and inlet and outlet apertures closed by plugs, &c. 3, 4 through which cooling or heating medium can be applied. The filling-aperture may be formed in the upper part of the handle, and an air vent 9 may also be provided. The handle is insulated by means of a perforated sleeve 10, Fig. 5, or by a covering of' insulating material, and the receptacle is provided with a stand portion 6 secured to the casing.
Patent GB-671486-A (GB)
Title: Improvements in or relating to drawing boards
IPC: B43L13/04
Filed: 1950-01-02
Abstract: 671,486. Drawing-instruments. PRUFER, K. Jan. 2, 1950 [Oct. 28, 1948], No. 26739/49. Class 97 (iii). [Also in Group XV] A drawing-board comprises a flexible rollable sheet 1 of, e.g., a synthetic resin for supporting drawing paper 12, and a rigid guide 2 permanently or detachably secured along one edge of the sheet 1 to act as a guide for the head 5 of a T-square 6. The guide-member may be formed with a groove 3 along its length which engages a projection 4 on the underside of the head 5 of the T-square 6. The head of the T-square may be detachable from its blade, e.g. by means of a turn button 9 or a tapered undercut recess, Fig. 3 (not shown), and correspondingly shaped part of the blade. The blade may be of rigid material or alternatively of flexible, preferably transparent material, e.g. synthetic resin. In a modification, Fig. 4, a groove 33 in the guide 14 has its inner wall 33 at right angles to the surface 35 and the outer wall inclined outwardly. The projection on the head of the T-square has its outer flank 34a convexly curved so as to engage the corresponding plane wall of the groove 33 along a straight line only and thus reduce friction. The blade of the T-square may be fixed towards the lower end of the head so that the blade may be used close to the bottom of the board whilst the whole of its head remains supported by the guide.
Patent GB-532933-A (GB)
Title: Improvements in and relating to the handling and treatment of bulk material for furnace charges
IPC: C21B5/00
Filed: 1939-09-27
Abstract: 532,933. Furnace charges. BRASSERT & CO., Ltd., H. A., and THOMSON, T. Sept. 27, 1939. No. 26761. [Class 51 (ii)] [Also in Group II] The several constituents of a charge for blast furnaces and the like are separately crushed to the desired size and mixed in the desired proportions on a conveyer belt. In carrying out the process each constituent passes successively through a series of screening devices 18, 21, 23 before passing to the respective crushers 11, 12, 13, the screenings being delivered at each stage on to a conveyer belt 19 which carries them to the finally crushed material, and both screenings and crushed material are carried by a conveyer belt 24 to one of a number of bunkers 14 for storing the various constituents of the charge. The constituents are deposited simultaneously from the bunkers 14 on to a moving belt 15 in the desired proportions, where they are mixed and are then conveyed by the belt 15 to a screen 16 where the fines are removed and transferred to a sintering plant, the screened charge being taken to the furnace. The screenings removed at 18 may be wet in which case they pass from the conveyer belt 19 to a drying plant and are then returned to the conveyer belt. Each constituent may be screened before being mixed.
Patent GB-498188-A (GB)
Title: Hydraulic power installations
IPC: E02B9/06
Filed: 1937-10-04
Abstract: 498,188. Walls. ENGLISH ELECTRIC CO., Ltd., and SEEWER, P. W. Oct. 4, 1937, No. 26837. [Class 68 (ii)] [Also in Group XXVI] In an hydraulic power installation in which one or more closed conduits 2 convey water to the power house from one or more sluices of a dam 1 having other sluices, not shown, discharging into the open stream below the dam, a conduit enclosure formed by walls 3 attached to the dam 1 is filled with clean water for exerting a force on the insides of the walls to counteract that exerted by the river water outside. This avoids the possibility of impurities in the water interfering with the working of expansion joints in the conduit. The walls 3 may be connected with the dam 1 by expansion joints. The level of the water inside is maintained automatically the same as that outside. Should the automatic level control fail, water flows one way or the other as required through holes in the walls, some of which have one way valves opening inwards and others opening outwards.
Patent GB-883678-A (GB)
Title: Nuclear reactor fuel element
IPC: G21C1/06
Filed: 1959-08-06
Abstract: 883,678. Nuclear reactors. UNITED STATES ATOMIC ENERGY COMMISSION. Aug. 6, 1959 [Aug. 8, 1958], No. 26903/59. Class 39(4) A fission product trapping apparatus for a gas cooled high temperature nuclear reactor comprises a plurality of slugs of nuclear fuel each loosely disposed within self-supporting material, the self-supporting material being treated to provide a highly densified material having a low permeability to fission products, the self-supporting material being loosely disposed within an outer retaining shell of neutron moderating material wherein there is provided a space between the self-supporting material and the outer retaining shell, and a plurality of fission product traps connected to the space. In Fig. 6 the fuel element of the reactor comprises an outer tube 63, preferably of graphite; containing top and bottom portions 27, 29 which are preferably of graphite and form reflectors, and a plurality of fuel slugs loosely arranged within the tube. The fuel slugs comprise the fuel, which may be a mixture of uranium 235 with either uranium 238 or thorium 232 in the form of oxides or carbides, loosely enclosed in a can which is preferably of impermeable graphite but may be of pyrolytic carbon, beryllium, beryllium oxide, or silicon carbide. A channel 69 within the fuel element communicates with the spaces between the fuel slugs and is maintained at a lower pressure than that in the reactor so that any leakage of coolant, which may be helium, is inwards through the tube 63. Any fission products escaping from the fuel can are carried with the gas down channel 69 to a chemical trap 68 located within the fuel element, and then out of the reactor to external monitors, cool traps and cold traps. The monitors are arranged in a coordinate system so that if one of the fuel elements is leaking fission products it may be identified. In a modification, Fig. 1 (not shown), the chemical trap is not included in the fuel element but is arranged outside the reactor. Specifications 779,134 and 789,022 are referred to.
Patent GB-1505545-A (GB)
Title: Process for the production of 1-acyloxy alkenyl phosphonic acid diesters
IPC: C07F9/40
Filed: 1975-06-25
Abstract: 1505545 Preparing acyloxyalkenyl phosphonic acid diesters BAYER AG 25 June 1975 [29 June 1974] 26919/75 Heading C2P A compound of the general formula in which R is H or a saturated aliphatic or cycloaliphatic radical and R<SP>1</SP> and R<SP>2</SP> are saturated aliphatic or cycloaliphatic radicals is obtained by reacting a compound of the formula with a carboxylic acid anhydride of the formula (R<SP>1</SP>CO) 2 O in the presence of a basic catalyst comprising pyridine, α-, #- or γ-picoline or quinoline. The reaction may be carried out in a solvent which may be an excess of one of the reactants or of the catalyst. Examples are given for the production of compounds in which R<SP>2</SP> is ethyl, R<SP>1</SP> is CH 3  or C 2 H 5 , and R is H and CH 3  respectively, pyridine being used as catalyst in each case.
Patent GB-649034-A (GB)
Title: Stainless steel
IPC: C22C38/50
Filed: 1947-10-07
Abstract: An austenitic stainless steel has the following composition: Cr 12-22 per cent, Ni 10-21 per cent, P 0.05-0.5 per cent, C 0.01-0.15 per cent, Mn 0.1-20. per cent, Mo 2-4 per cent, Cu 2-4 per cent, Ti 0.15-0.75 per cent, Nb 0.2-1.1 per cent, Fe the remainder.  Up to about 0.06 per cent S and up to about 0.6 per cent Si may be present as impurities.  The alloy may be annealed at 2050 DEG -2250 DEG F. and hardened at 1200 DEG -1500 DEG F.  Working and forming operations may be performed between the annealing and hardening steps.  Use of the alloys in gas turbine equipment, internal combustion engine parts and chemical equipment is referred to.  Specifications 400,747, 428,950 and 649,023 are referred to.
Patent GB-1478962-A (GB)
Title: Composite metal elongate product
IPC: B21C23/22
Filed: 1973-06-06
Abstract: 1478962 Making tubes YORKSHIRE IMPERIAL METALS Ltd 28 May 1974 [6 June 1973] 26888/73 Heading B3A [Also in Division F2] A method of producing a composite metal elongate product comprises assembling a first member within a tubular second member, one of the members being of a relatively highly corrosion resistant metal such as titanium, titanium-base alloy, zirconium or tantalum, and the other member being of a relatively highly thermally conductive metal such as copper, or a copper-based alloy; such as 2% aluminium brass, there being a layer of ductile metal such as copper, nickel or silver between the first and second members, heating the assembly to a temperature at which diffusion occurs between the relatively highly corrosion resistant metal and the layer of ductile metal, and extruding the assembly either following or during the heating step, a diffusion bond being formed between the relatively highly corrosion resistant metal and the ductile metal.  The product can be tubular in which case the relatively highly corrosion resistant metal may provide either the internal or the external surfaces of the product or both. The layer of ductile metal may comprise an annular insert between the first and second members or it may comprise a coating or a plurality of coatings on the surface of the relatively highly corrosion resistant metal. The finished product may be cold worked and may be used in a heat exchanger.
Patent GB-158629-A (GB)
Title: A new or improved fastening device for use in securing or positioning pipes and the like
IPC: F16L3/10
Filed: 1919-11-05
Abstract: 158,629. Darby, A. C., and Darby, P. L. Nov. 5, 1919. Holdfasts. - A device for holding a pipe 5 in position comprises a U- shaped clip 1 which can be secured by a screw, and a locking-element 6 slidable over the turnedover edges 2 of the clip. The screw-hole 3 may be square to prevent relative movement of the clip and the screw. The edges 7 of the locking-element 6 are turned over to form grooves, and are formed with projections 9 to engage with notches 8 in the curved edges 2 of the clip. The locking-element 6 may be formed with projections 10 to receive the edge of an operating-tool.
Patent GB-814456-A (GB)
Title: Improvements in drawing mechanisms for textile slivers or rovings
IPC: D01H5/26
Filed: 1955-09-23
Abstract: 814,456. Drafting textile fibres. CASANOVAS, J. M. S. Sept. 23, 1955 [Sept. 23, 1954], No. 27217/55. Class 120(2) Drawing mechanism for textile slivers comprising two or more drawing devices coupled in tandem with one another is characterized by the provision, in at least one of the drawing devices of a conveying and controlling means for the fibres consisting of an endless belt 3 below the sliver having its exit point lifted slightly. preferably five to eight millimetres above the plane of draft without any roller or other fibre retaining member bearing on the sliver at or near this position, so that it is the tension due to the draft exerted on the fibres that determines the pressure of the fibres against the raised end of the belt 3. In a second embodiment the belt 3 is on the lower roller of the first pair and the second drafting device comprises a double apron unit.
Patent GB-1038882-A (GB)
Title: Polymerization process
IPC: C08F36/04
Filed: 1963-07-10
Abstract: 1,038,882. Polymerizing olefins. CABOT CORPORATION. July 10, 1963 [July 11, 1962; Aug. 1, 1962 (2); March 28, 1963; April 1, 1963], No. 27233/63. Heading C3P. [Also in Division B1] A process for polymerizing mono-olefins, mixtures of mono-olefins, di-olefins, mixtures of di-olefins and mixtures thereof comprises contacting them at temperatures between- 25‹ and 250‹ C. with a catalyst comprising: (a) the product of a metathetical reaction carried out at a temperature in the range of 0‹ to 300‹ C. and with the elimination of by-product hydrogen halide between (1) a compound conforming to the formula TO a X b  where T is a metal of Groups IV A , V A , VI A , VII A , or period 4 of Group VIII of the periodic system according to Mendeleev, O is oxygen, a is 0, 1 or 2, each X is a halogen, and b is an integer from 2 to 7, and where 2a+b=the valency of T, and (2) a finely divided, particulate inorganic solid substantially free of molecular water but having hydroxyl groups chemically attached to the surface thereof, thereby replacing substantially all of the active hydrogen atoms of said hydroxyl groups with TO a X d  groups (where T, O, a and X are the same symbols set forth above and d is between 1 and 5 inclusive); and (b) a compound conforming to the formula R p H t MO 4-(t+p)/2  wherein each R is chosen from the group consisting of monovalent hydrocarbon radicals, monovalent alkoxy radicals and monovalent aryloxy radicals; p is a number from 0 to 3; each H is a hydride radical; t is a number from 1 to 4; M is silicon or a quadrivalent metal of Group IV B  of the periodic system according to Mendeleev; and O is oxygen. In the examples, the catalysts used are the reaction product of a benzene suspension of silica with titanium tetrachloride further reacted with either triphenylstannane or di-iso-propyl germane, the reaction product of an isooctane suspension of pyrogenic titania with vanadium oxytrichloride further reacted with triethoxy silane, and the reaction product of a benzene suspension of channel carbon black with titanium tetrachloride further reacted with diethyl silane. Polymers produced are homopolymers of ethylene and propylene, and a copolymer of butadiene and ethylene. Many catalyst components and monomers are listed. The polymers produced may be after-treated and may also be compounded with fillers and other known additives.