baber/WOPTO huggingface dataset:
Patent GB-726343-A (GB)
Title: Sealed headlight having auxiliary reflector
IPC: F21V7/00
Filed: 1953-03-24
Abstract: 726,343. Vehicle lamps. GRUPEN, J. L., and WHEELER, S. M. March 24, 1953, No. 8120/53. Classes 75 (2) and 75 (4). An anti-dazzle headlamp comprising a gas-tight casing has a main parabolic reflector 5, having a light source, e.g. an electric lamp 10 at its focus, and a parabolic auxiliary reflector 6 having upwardly diverging sides and a top-edge curved around a point on the axis of the reflector 5 and transparent top, bottom and lateral walls defining a housing 7 within which the lamp 10 may be mounted on a plate 12. The lower wall 31 of the housing 7 is spherically curved and the reflectors 5, 6 and the housing 7 are integrally moulded of glass or plastic material, and the front lens 9 of similar material is fused to the front edge of the reflector 5 to form a sealed chamber 13. The reflector 6 comprises a series of parabolic sections and the reflecting coatings 14, 24 of the reflectors 5, 6 are located within the chamber 13 and are thus protected from the external atmosphere. Rays between lines 25, 26 are reflected by the reflectors 6, 5 as beams 27, 28 and 29, 30, respectively. Rays between lines 16, 26 which would otherwise pass between the upper edges of the reflectors 5, 6 are intercepted by a mask 11 provided on the lamp bulb 10. The part 32, 33 of the light beam passing through the spherical wall 31 passes directly downwardly and outwardly, whilst the remaining part 18, 19 is reflected by the reflector 5 as a horizontal beam 20, 21. U.S.A. Specification 2,629,815 is referred to.
Patent GB-1215101-A (GB)
Title: Drive mechanism
IPC: F16H49/00
Filed: 1969-02-14
Abstract: 1,215,101. Toothed gearing. GENERAL MOTORS CORP. 14 Feb., 1969 [16 Feb., 1968], No. 8128/69. Heading F2Q. A deformable strain type reduction gear comprises a pair of gears 30, 34 having different numbers of facial teeth 31, 35, one gear being held against rotation, rotation of a wave generator 50 causing a travelling wave type deformation of the gear 34, which is flexible, to flex parts of its gear face into mesh with the gear 30 and produce relative rotation between the gears 30, 34. In a vehicle window actuator A, Fig. 1, a disc type reversible electric motor 15 drives an output drum 90 via two deformable strain type gear reduction stages 10, 12. Each stage comprises a two arm wave generator 50, 71 carrying rollers 48, 70, a flexible gear 34, 62 held against rotation by non-circular portions (20b, 19b) of a bearing member (16) (Fig. 2, not shown), and a rotatable output gear 30, 66. The motor shaft 14 carries wave generator 50, and the gear 30 carries wave generator 71. The gear 66 is secured to the output drum 90, which forms a gear casing. In Fig. 4, a single stage reduction gear has a wave generator 130 formed by a cam disc which bears via balls 133 on a flexible gear 110 held against rotation by dowels 112 engaging between lugs 114. A second gear is formed by facial teeth 120 on the base of a cup-shaped rotatable gear casing 102 which carries an output arm 154. Dowels 152 may engage slots 151 of the casing 102 to limit rotation thereof.
Patent GB-334493-A (GB)
Title: Improvements in and relating to apparatus for producing sound
IPC: H04R11/00
Filed: 1930-03-13
Abstract: 334,493. British Thomson-Houston Co., Ltd., (Assignees of Guedon, E. C.). March 14, 1929, [Convention date]. Magnetic instruments. -In a loud-speaker or like apparatus, a coil spool is provided with one, or two opposing, inwardly projecting lugs to which the armature is rigidly attached. The coil spool shown in Figs. 1, 2, 3 consists of two portions 15, 16 which clip on to end plates 23, 24 secured to the pole-pieces 19 - - 22 of a. permanent magnet 18. The armature 12, consisting of a rectangular plate of metal of low magnetic reluctance, is rigidly secured to the lugs 13, 14 of the spool portions 15, 16 which provide both a pivot and the restoring forces. The armature is connected by a rod 11 to a diaphragm 10. In a modification, Figs. 4, 5, the spool consists of a single portion with flanges 27, 28 for supporting the pole-pieces, and has a projecting portion 29 to which the armature 12 is attached. -
Patent GB-535600-A (GB)
Title: Improvements in or relating to the printing of sound record films
IPC: G11B7/28
Filed: 1940-05-08
Abstract: 535,600. Producing variable density from variable width sound records. KODAK, Ltd. May 8, 1940, No. 8275. Convention date, July 25, 1939. [Classes 97 (i) and 98 (i)] [Also in Group XXXVIII] Means for printing on a film a variable density sound track from a variable width track comprises means for illuminating the latter and an optical system consisting of lenses including cylindrical and spherical or slightly aspherical refracting surfaces which form on the film an astigmatic line image of each point on the variable width track, which image extends across the whole width of the variable density track but is punctual longitudinally of it, so that the density of the image is everywhere proportional to the width of the variable width track from which it is printed. As shown in Fig. 1, a 35 mm. film 1, bearing a variable-width sound track 2, and a 16 mm. film 6 on which the variable-density track is to be printed are driven by sprockets on a common shaft 4. The sound track 2 is illuminated by a lamp 5 and the variable-density image is produced by an optical system comprising collective lenses 8, 9, a cylindrical lens 10 adjacent the film 6, and totallyreflecting prisms 11, 12. Diaphragms 14, 15 define the horizontal and vertical aperture dimensions of the system. Fig. 4 shows a similar system in which the prisms are omitted. The collective lens 8 forms an image of the track on the film 1 in the second collective lens 9, this image being focused by the cylindrical lens 10 on the film 1 as an astigmatic image in which each point of the track on the film 1 is represented reproduced as a line extending over the width of the variable-density track. The film 6 is conjugate to a plane at or near the lens 8 with respect to the lens 9, and a diaphragm 14 in this plane defines the width of the track. Lenses 8 and 10 are approximately conjugate with respect to lens 9. The vertical aperture dimension of the system is defined by a diaphragm 15 and includes more than two cycles of the highest frequency recorded. The illuminating system comprises a collective lens 18 which forms an image of the elongated lamp filament in a second collective lens 19, by which the light is focused on to the film 1. Diaphragms 20, 21 define respectively the vertical and horizontal dimensions of the aperture of the illuminating system. In modifications, the projection system comprises a single collective lens and a cylindrical lens adjacent one or other of the films.
Patent GB-627563-A (GB)
Title: Improvements in or relating to the transportation of material in services such as mines and means therefor
IPC: B65G15/04
Filed: 1946-03-18
Abstract: 627,563. Conveyers ; rope railways. MAVOR & COULSON, Ltd., and THOMSON, J. March 18, 1946, No. 8332. [Classes 78 (i) and 104 (ii)] A conveyer system comprises an endless belt having a lower run 4 arranged both for the direct and indirect conveyance of materials, the lower run being arranged to haul a wheeled load carrying carriage 8 along a track. The upper run 2 of the belt conveyer is supported by rollers 1 suspended from steel arches 3 of a mine road above the lower run 4 of the belt, the supporting rollers 5 for which are carried by sleepers 6. Rails 7 are carried by the sleepers and serve as a track for the wheeled carriage 8 straddling the belt run. The carriage 8 is provided with two drums 10, 12 around which passes the lower run 4 of the belt in an S bight so that they rotate in opposite directions. A shaft 13 carrying a friction wheel 14 is mounted in an eccentric bearing 15 and the shafts of the drums 10, 12 carry friction wheels 16, 17. By adjusting the eccentric with a lever 18, the shaft 13 can be brought into driving contact with one or other of the drums 10, 12 or into a neutral position as shown in Fig. 4. In this way the shaft 13 can be driven by the belt in either direction or remain at rest. The shaft is connected to the axle 20 of the carriage 8 by a sprocket wheel and chain gear 19. Brake means may be provided to keep the carriage at any desired point when the gear is in the neutral position. Fig. 7 shows a jail-embracing screw-operated and spring released clamp 22 for this purpose. When more than one conveyer is required, arrangements are made to enable a single carriage to be shunted from one portion of the track to another along rails 24 as shown in Fig. 9. A hauler 8a is driven by the lower run 4 of each conveyer and is connected to a simple wheeled transport carriage 8 which it hauls the length of one conveyer. The carriage is then uncoupled and pushed along the rails 24 into position on the next conveyer where it is coupled to the hauler pertaining thereto.
Patent GB-949041-A (GB)
Title: Improvements in or relating to silica aquasols and to their production
IPC: C01B33/148
Filed: 1960-03-09
Abstract: An aquasol contains 35 to <FORM:0949041/C1/1> wt. % amorphous silica; <FORM:0949041/C1/2> of a base calculated as a molar ratio, R, SiO2 : M2O; and [0.0015+0.0065(x - y] to 0.05 equivalents/1. of a soluble salt of a monovalent cation; where A is the surface area of the SiO2 particles and is 60-300 sq. m./grm., M2O is the oxide of a monovalent cation, and x and y are calculated from the relations x1001=R - 129, and y1001=R - 501, and the sol is prepared from a dilute aquasol of viscosity 1.13 to 1.45 at 10% SiO2 and pH2 containing less than 35% SiO2 particles of the required size, and the required quantities of base and soluble salt, by evaporating water therefrom.  M may be alkali metal, ammonium, or C1-C4 alkyl substituted ammonium, or bases may be nitrogen, phosphonium, or sulphonium bases, e.g. NaOH, KOH, NH4OH, guanidine, or tetra-methyl- or ethyl-ammonium hydroxide.  R ranges from 33-2000 and 64% is the maximum SiO2 concentration.  The salt, of which the cation may be M, may be chloride, sulphate, acetate, nitrate, or sulphamate of Li, Na, or K.  A salt-free sol may be initially heated in a closed container to grow the desired particles at 160-370 DEG  C., and the salt may be added in solution. Further adjustments to obtain the desired starting sol may be effected by ion exchange resins.  The sol should be subjected to high turbulence during evaporation. Specifications 667,154, 699,557 and 701,245 are referred to.
Patent GB-660303-A (GB)
Title: Method of producing expanded metal
IPC: B21D31/04
Filed: 1949-03-28
Abstract: 660,303. Making expanded metal. TEEPE, L. J. M., and NAAMLOOZE VENNOOTSCHAP V.E.C.O. ZEEFPLATENFABRIEK. March 28, 1949, No. 8361/49. Class 83 (ii). In a method of making expanded metal, a master sheet to be stretched and having slits. arranged in the required pattern is deposited galvanically or chemigraphically on a matrix. The slits may have rounded, corners and the sheet may be of very thin and soft material which may be reinforced by electro-deposition of a secondary layer of metal on one or both sides after the stretching process. The stretching may be effected over a sharp edge. Specification 460,687, [Group XXXVI], is referred to.
Patent GB-393387-A (GB)
Title: Arrangement for removing soot, coal dust, ashes and the like from flues in operation
IPC: F23J3/02
Filed: 1932-03-21
Abstract: 393,387. Cleaning flues. IVANOVSKY, N. I., Apart. 10, 23, Romarskaya Str., Charkoff, U.S.S.R. March 21, 1932, No. 8407. [Class 99 (ii).] Soot, coal dust, and ashes are removed from flues, e.g. the gas collecting channel of a plant producing gas from fire wood, peat, or coal, while the flue is in operation, by means of a trolley 1 running on rails 3, the trolley having arms contacting with the rails to keep them clean, and carrying a scraper comprising two truncated cones 5 with apertures at their junction shielded by inclined straps 7 arranged like a jalousie. The scraper is drawn through the flue by means of steel ropes, and the soot &c. falls into hoppers 12 where it is discharged by means of valves. The apparatus may also be applied for removing sediment in transmitting gas from pyrites kilns, for removing cement dust from the channels between rotatable cement kilns and flues, and in the wood industry for removing wood dust from a discharge aperture, and for other like purposes. Specification 393,554 is referred to.
Patent GB-882410-A (GB)
Title: Operating and control device for hydraulic apparatus
IPC: F15B7/08
Filed: 1960-03-10
Abstract: 882,410. Hydraulic jacks. SCHAFER, G., SCHAFER, O., SCHAFER, JUN., G., and SCHAFER, JUN., O., [trading as KUGELFISCHER G. SCHAFER & CO.]. March 10, 1960 [April 16, 1959], No. 8437/60. Class 78 (3). In an hydraulic jack, two check valves 33, 37, situated in the connection between the pump cylinder 23 and the working cylinder (not shown) which lifts the load, close to prevent the load from sinking when pumping is halted at any position of the pumping shaft 12 between the two extreme pumping positions B, D, and can be opened to lower the load by movement of the shaft 12 beyond the suction stroke end position B to a position A, thus allowing fluid to flow from the working cylinder to the reservoir 19 via the valves 33, 37, passages 31 to 28, cylinder 23 and restricted passage 56. An overload valve 59 is provided between the cylinder 23 and reservoir 19, and a pressurebalancing aperture is provided in the filler cap 27 for the reservoir 19.
Patent GB-633867-A (GB)
Title: Building elements
IPC: E04B2/02
Filed: 1947-03-28
Abstract: 633,867. Building-blocks. SOC. D'ETUDES DE CONSTRUCTIONS DE REPARTITION, DE CONTROLE, ET DE GERANCE. March 28, 1947, No. 8476. Convention date, July 23, 1946. [Class 87 (i)]  An apertured building block is formed on its upper face with a longitudinal tongue 1, and on its lower face with a corresponding groove, and on each end with a tongue 3 and a groove 4 preferably formed to provide a space 5 between abutting blocks. Corresponding comer, wall-junction and half blocks are provided. A stringer block is closed at the bottom and open on one face.
Patent GB-634506-A (GB)
Title: Combined tin-opener and pouring device
IPC: B67B7/48
Filed: 1947-03-28
Abstract: 634,506. Combined tin-opening and pouring device. SOC. CIVILE BEMEX. March 28, 1947. No. 8518. Convention date, Feb. 28. [Class 21] A combined spout and tin-opener comprises a punch having a cutting member 7 slidable in a guide member 8, and capable of being secured to a tin by the engagement of portions of the member 7 with edges of the aperture formed by the punch. The member 8 with the punch in its retracted position, is placed on the tin and the punch pressed down to cut the aperture. The punch is turned to bring portions of the member 7 beneath edges of the aperture and a lock-nut 11 is screwed down to lock these edges between the member 7 and a scaling ring 10 carried by the member 8. The lock-nut 11 may be used to limit the penetration of the punch. A screw cap 12 closes the spout and the cap may have markings to indicate the angle through which the punch must be turned to lock the device to a tin. The spout may have a corrosion resisting lining 13 and the whole device may be treated against corrosion.
Patent GB-867620-A (GB)
Title: Improvements in or relating to the recovery of non-sugar substances arising from thepurification of sugar beet juice
IPC: C13B20/06
Filed: 1959-03-12
Abstract: In a process for purifying sugar beet juice whereby non-sugar substances of low lime content useful as fodder are obtained, sufficient lime is added to the raw juice to produce a pH of 10,8 to 11,2, i.e. an alkalinity equivalent to 0,10 to 0,15% CaO by volume, and precipitate the non-sugar substances, thin sludge from a later stage in the process being added before and/or during this operation, after which further time is added to increase the CaO content to 0,3% by volume, carbon dioxide being introduced at the same time or thereafter to produce an alkalinity equivalent to 0,05 to 0,06% CaO by volume.  The resultant mixed juice is then subjected to continuous sedimentation to produce a thin sludge and a liquor, the thin sludge to mixed juice ratio being between 1 : 3 and 1 : 3,5, part of the sludge being used in the first stage, as stated the remainder being further concentrated in centrifugal separators.  The sludge concentrate may be freed of air and filtered to a cake, or dried and pulverised, for use as fodder; alternatively it may be mixed for this purpose with materials such as molasses, compressed beet pulp, potato flakes, brewing or grain distillery residues, silage, dehydrated fodder, and fishmeal.ALSO:In a process for purifying sugar beet juice whereby non-sugar substances of low lime content useful as fodder are obtained, sufficient lime is added to the raw juice to produce a pH of 10.8 to 11.2, i.e. an alkalinity equivalent to 0.10 to 0.15% CaO by volume, and precipitate the non-sugar substances, thin sludge from a later stage in the process being added before and/or during this operation, after which further lime is added to increase the CaO content to 0.3% by volume, carbon dioxide being introduced at the same time or thereafter to produce an alkalinity equivalent to 0.05 to 0.06% CaO, by volume.  The resultant mixed juice is then subjected to continuous sedimentation to produce a thin sludge and a liquor, the thin sludge to mixed juice ratio being between 1 : 3 and 1 : 3.5, part of the sludge being used in the first stage, as stated, the remainder being further concentrated in centrifugal separators.  The sludge concentrate may be freed of air and filtered to a cake or dried and pulverized for use as fodder; alternatively it may be mixed for this purpose with materials such as molasses, compressed beet pulp, potato flakes, brewing or grain distillery residues, silage, dehydrated fodder, and fish meal.
Patent GB-984782-A (GB)
Title: Flashing light on toy model
Inventor: GILLERON ANDRE ALBERT
IPC: A63H17/00
Filed: 1963-03-04
Abstract: 984,782. Toy vehicles. MECCANO Ltd. Feb. 13, 1964 [March 4, 1963], No. 8618/63. Heading A6S. A model vehicle has a battery operated directionindicating light responsive to the steering mechanism with means for intermittently interrupting connection to the light bulb. In the embodiment described a fork-shaped leaf spring 30 on the chassis having leaves 28, 29 retains the front axle 31 between locating pins 38. When the chassis 11 is tilted to left or right one end of the axle 31 rides up into upwardly extending slots 41, 42, according to the direction of turning, and one of the leaves 28, 29 makes contact with contact 27 or 26, respectively, to complete circuit to the indicating lamp 25 or 24, respectively. Intermittent flashing of the light is obtained by means of a cam 19 whose rotation during travel of the vehicle interrupts the electric circuit. Interruption of the circuit can also be obtained even when the vehicle is stationary by means of bimetal switches in the lamps.
Patent GB-118400-A (GB)
Title: Improvements relating to Mills for Rolling Plates.
Inventor: SAHLIN AXEL
IPC: B21B39/14
Filed: 1918-05-24
Abstract: 118,400. Sahlin, A. May 24, 1918. Rolling.-For directing a slab or plate to the rolls of a rolling mill, or for turning the slab during the process of rolling into any required position, a lever or levers A are pivoted to the frame D of the rolling- mill table, and provided with one or more pins L, I which can be raised into contact with the work by means of a motor-driven crank G, and connecting-rod F, or by hydraulic means arranged outside of the roller frames, so as not to be exposed to the scale and slag droppings. As shown, when the crank G is operated, firist the pin I contacts with the work, which pivots about this pin until it attains the desired position, or the lower pin L is also brought into action to complete the turning. For wide machines, two levers with pins as L, I may be employed, one pivoted to each side of the machine-frame.
Patent GB-858474-A (GB)
Title: Glass sheet drawing apparatus
IPC: C03B15/18
Filed: 1959-03-13
Abstract: 858,474. Drawing sheet glass. PITTSBURGH PLATE GLASS CO. March 13, 1959 [April 24, 1958], No. 8758/58. Class 56. Apparatus for the vertical drawing of sheet glass from a molten bath comprises an upright support structure, a series of pairs of drawing rolls to define the plane of drawing, at least one pair including a normally stationary roll and a movable roll adapted for lateral movement, the pair of rolls being operatively connected for rotation at the same speed regardless of their relative positions by means' comprising a first pair of spaced. gears connected for concurrent rotation and a second pair of gears respectively connected to the stationary roll and the movable roll and meshing with the first pair of gears. A machine structure 19 supports pairs of rolls 20, 22, the rolls 20 being mounted in fixed bearings in housings 17,21, the housing 17 also carrying bearings for the main shaft 11  which rotates roll 20 through suitable reduction gearing and the rolls 22 being mounted in spaced bearings 23, 24 in a housing 25 at one end and similar bearings in a housing 26 at the opposite end. Each roll 22 is mounted for arcuate movement about an axis above housings 25, 26, to pivot in arcuate slots 35 in the support structure 19 and a cover plate 18 integral with the housing 17, the housing 25 having bearings 27, 28 to receive a stub shaft 29 fixed in a bore 30 in the plate 18 and retained by lock collars 31. Adjacent the shaft 29, weighted arms, not shown, are attached to the housing 25, 26 to give a rotary force providing yielding pressure between the two rolls. To give the same speed of rotation to the two rolls 20, 22, the means 36 comprises spaced housings 37, 38 connected by a bellows 39 to allow for pivotal movement of housing 38 and cup like members 40, 41 at each end to prevent entry of foreign matter. Each housing 37, 38 has bearings 42, 43 rotatably receiving a sleeve 44, 45 having a fixed or integral helical gear 46, 47 and receiving the shaft or extension of a roll 20, 22 respectively, keyed thereto for concurrent rotation. On an axis normal to the sleeves 44, 45 spaced bearings 50, 51 and 52, 53 rotatably receive sleeves 54, 57 having fixed or integral helical gears 55, 58 which mesh with the helical gears 46, 47 respectively. Both sleeves 54, 57 have internal splines 59 along their inner diameters and an externally splined shaft 60 is slidably received therein to provide a driving connection from the fixed roll 20 to the movable roll 22, stop collars 61, 62 limiting its movement, and both housings 37, 38 pivoting as necessary with the pivoting of housing 25 and roll 22. Cooling fluid is circulated through outer chambers 63 of each housing and the bearings are lubricated through inlets 68, grease seals 69, 70 being provided. The shaft 60 is provided with spaced oil holes 71 for the flow of lubricant along its length.
Patent GB-1217615-A (GB)
Title: Catalytic hydrolysis of phosgene
Inventor: FREVEL LUDO KARL
IPC: C01B7/00
Filed: 1968-02-23
Abstract: 1,217,615. Catalytic hydrolysis of phosgene. DOW CHEMICAL CO. 23 Feb., 1968, No. 8837/68. Heading C1A. [Also in Division C2] A gas mixture containing phosgene and water is passed over an alkali activated alumina catalyst at 95‹ to 190‹ C. to hydrolyse the phosgene. The catalyst preferably contains 0À5 to 3% by weight of sodium or potassium. The process may be used to remove phosgene from other gases, e.g. air, nitrogen, inert gases, halogens, hydrocarbons and chlorinated hydrocarbons such as trichloroethylene and perchloroethylene, or to remove water from phosgene.