baber/WOPTO huggingface dataset:
Patent GB-830291-A (GB)
Title: Brake for spinning and twisting spindles
Filed: 1957-09-20
Abstract: 830,291. Spindle brake arrangements. WURTTEMBERGISCHE SPINDELFABRIK G.m.b.H. Sept. 20, 1957 [Sept. 22, 1956; Aug. 14, 1957], No. 29723/57. Class 120(2) [Also in Group XXXIV] In a brake arrangement for a spinning or twisting spindle, a brake member is mounted in a housing upon the inside of a hinged or removable cover and is operated by an element disposed upon the outside of the cover. In one embodiment, Figs. 1, 2, a brake shoe 4 is mounted on a brake arm 3 pivoted at 2 on the underside of a hinged casing 1 and can be moved, against 'the action of a tension spring 5, into braking contact with the spindle whorl 9 by movement of a short lever 6 secured to a shaft 7 rotatable by an operating handle 8 located outside casing 1. In another embodiment, Fig. 5, transmission of braking force to the spindle bearing is avoided by using two brake shoes 28, 29 carried by pivoted arms 23,.24 and pressed into engagement with opposite sides of the spindle whorl by a W-shaped spring 22. Arms 23, 24 are normally held apart by means of a cam 25 which can be rotated by an operating handle 32 to permit the arms to move to braking position. In a modification, two-armed brake levers are used; the levers are urged apart by a compression spring and can be forced to braking position by movement of the cam. In a further embodiment, Fig. 10, brake shoes 107 are removably secured on the ends of arms 101<SP>1</SP>, 101<SP>11</SP> of a W-shaped spring. The arms are held apart by a cam 102 connected by a stud to a plate 111 outside the cover 100. An operating handle 103 terminates in a ball joint in a caplike member 105 fixed to plate 111. To apply a spindle brake, handle 103 is lifted, pivoting at the ball joint about a horizontal axis, and swung over the adjacent handle about a vertical axis so as to move cam 102 to a position in which arms 101<SP>1</SP>, 101<SP>11</SP> are released to apply braking pressure. Instead of using a ball joint, the handle may be pivoted to plate 111 by a horizontal pivot.
Patent GB-617551-A (GB)
Title: Improvements in or relating to arc welding electrodes
IPC: B23K35/04
Filed: 1946-10-07
Abstract: An electrode for welding thin nickel steel sheets comprises a nickel steel &c. wire with a coating not greater than .005 inches thick of a mixture of zinc and zinc oxide or a mixture of zinc alloy and zinc oxide.  The coating is applied by subjecting the wire to a shot-blasting operation and then to a metal spraying operation to produce a coating of .001 to .002 inches in thickness.
Patent GB-168019-A (GB)
Title: Improvements in sparking plugs
IPC: H01T13/46
Filed: 1920-10-22
Abstract: 168,019. Beru-Werk. Aug. 14, 1920, [Convention date]. Void [Published under Sect. 91 of the Act]. Sparking-plugs. - The insulator. a is mounted directly in the cylinder g without the interposition of a metallic shell or casing, a gland h being used to clamp in position the insulator and the flange f of the sleeve c carrying the earthed electrode. In one modification, the earthed electrode penetrates the insulation and in another is mounted in the cylinder.
Patent GB-381361-A (GB)
Title: An improved method of fitting renewable valve seats to engine cylinders and the like
IPC: F16K1/42
Filed: 1931-10-28
Abstract: 381,361. Cylinders. HURST, J. E., The Beeches, Green Lane, Dronfield, and SHEEPBRIDGE STOKES CENTRIFUGAL CASTINGS CO., Ltd., Sheepbridge Works, Chesterfield, both in Derbyshire. Oct. 28, 1931, No. 29916. [Class 7 (ii).] A valve seating ring A, formed either stepped, as shown, or conical, so that its inner diameter is greater than its outer, is forced into a correspondingly shaped recess, slightly less in diameter, and is retained by the elastic recovery of the metal. The process may be assisted by temperature difference between the parts. The difference of diameter is preferably greatest at the inner edge which is chamfered as shown. The ring may have hoop tension stress initially set therein by hammering, peaning, heat treatment, or subjection to radial compression stress ; it is formed of cast iron, austenitic steel or a hard non-ferrous alloy.
Patent GB-1147676-A (GB)
Title: Semiconductor device
IPC: H01L29/00
Filed: 1966-07-04
Abstract: 1,147,676. Semi-conductor devices. RADIO CORPORATION OF AMERICA. 4 July, 1966 [19 July, 1965], No. 29921/66. Heading H1K. The collector region 14 of a transistor 10 comprises at least three regions 20, 22, 24, the respective resistivities of which decrease in a step-wise manner in the direction away from the base region 16. The thicknesses of the two regions 22, 24 nearest to the base region 16 are substantially equal. As shown the region 20 is a degenerate N-type Si substrate on which are epitaxially deposited separate N-type layers 22, 24, the latter layer being of higher resistivity than the former. Alternatively the regions 22, 24 may be deposited epitaxially as a single layer, control of the N-type dopant, e.g. phosphorus pentoxide, during the deposition process providing the two distinct resistivity regions. The resistivity of the substrate 20 is preferably lower than that of the upper layer 24 by a factor of at least 100 : 1. The resistivity of each of the layers 20, 22 24 may vary slightly within the layer. The base region 16 is formed by P-type diffusion into the upper collector region 24, and the emitter region 18 is formed by heavily diffusing an N-type dopant into the base region 16. The invention may also apply to a PNP transistor, and Ge may replace Si.
Patent GB-364186-A (GB)
Title: Improvements in or relating to locking devices for telescopic ladders and the like
IPC: E04F11/04
Filed: 1930-10-07
Abstract: 364,186. Ladders. LOFT LADDERS, Ltd. and GORHAM, P. H., Broadway Works, Bromley, Kent. Oct. 7, 1930, No. 30006. [Class 20 (ii).] Locking means for downwardly - extending telescopic ladders, particularly applicable as loft ladders, consists s of a spring- actuated catch 4 pivoted on a bar 3 fixed to the main ladder section 2, and having cam - shaped ends adapted to be actuated by upper and lower stops 7, 8, respectively, on the movable section 1 of the ladder, at the extremities of its movement. Slots 5, 6 in the catch are adapted to receive these stops to lock the ladder in these positions and in the extended position the stop bar 11 rests on the catch bar so that the extension ladder is prevented from movement up or down. The catch is released by pressure of the hand on a knob 10 which causes the catch spring 9 to enter a slot 12 in the bar 11 on which the upper stop is fixed and to retain the spring until the stop has passed the end of the lever, Fig. 3. A portion of the sliding ladder engages between the other ladder portion 2 and an offset portion 13 and to prevent rattling, is clamped in the lower position of the sliding ladder by a pivoted clamp 14 on the fixed ladder portion actuated by a stop 18 on the sliding section. Specification 216,692, [Class 20 (ii), Buildings and structures, Miscellaneous accessories &c.], is referred to.
Patent GB-195684-A (GB)
Title: Improvements in the road wheels of automobile vehicles
IPC: B60B5/04
Filed: 1921-11-10
Abstract: 195,684. Lanchester, F. W. Nov. 10, 1921. Compression-spoke wheels; spokes, securing.- Wheels comprise a number of wood spores a, or " plank members " which are substantially rigid in the plane of the wheel but are flexible in planes containing the axis. The spokes are secured directly to the rim c by shrinking or otherwise contracting it or pressing it into position, and holding it by screws or pins e driven radially and preferably obliquely into the spokes. The ends of the spokes may be reinforced by rivets d or hard-wood trenails f into which the screws or pins are driven. The inner surface of the rim may be grooved to form a seating for the spoke ends against lateral displacement. The rim may be mounted by contraction, or the spoke ends may be passed into the groove by lateral openings and then displaced circumferentially. The inner ends of the spokes may be connected by tongue and groove joints and held between hub flanges by bolts passing through holes b. In another construction, the spokes may be assembled inside the rim and driven outwards by wedges between their inner ends. Preferably the hub consists of two deep flanges v which are inclined so as to converge on the tread of the wheel. A metal ring may be provided to fcrm a seating for the inner ends of the spokes. In a modification, the spokes mav be arranged in two sets. Each set consists alternately of parallel sided members and members with wedge-shaped inner ends. The sets are superposed so that the parallel sided members of one set coincide with the wedge-ended members of the other. The spokes are tightened by a conical ring forced between the inner ends of the parallel sided members.
Patent GB-742535-A (GB)
Title: Improvements in and relating to the production of viscose
Inventor: SMITH JOHN OLIVER
IPC: C08B1/10
Filed: 1952-11-27
Abstract: <PICT:0742535/IV(a)/1> Apparatus for ageing alkali cellulose comprises a silo mercerizer having a stationary ageing compartment, through which the alkali cellulose crumbs pass vertically downwards, and mechanical pickers to remove crumbs continuously or intermittently from the bottom of the compartment, the pickers comprising rotatable members with non-circular transverse cross-sections of the same size and shape extending across the full width of the silo and having a substantially uniform clearance, there being substantially no permanent straight vertical path between adjacent pickers during their rotation.  The pickers may be hollow and provided with means for passing a cooling fluid through them. They may be prismatic in form with a transverse cross-section having the shape of an equilateral triangle with straight or slightly curved convex sides and rounded apices.  As shown, alkali cellulose is supplied continuously to the ageing compartment 11 of a silo mercerizer 10 through the supply hopper 14 and is distributed uniformly over the compartment by the cone 15.  The alkali cellulose passes slowly down the compartment 11 and is maintained at a constant temperature by a fluid circulated through the jacket 17.  It ages during its passage through the compartment and is discharged without compression by the rotating mechanical picker members 20 into the hopper 21, from which it passes through the outlet 22 to a xanthating churn or cooling drum.  The pickers 20 are hollow and are all rotated at the same speed in the directions shown by the arrows by means such as is described in Specifications 672,302 and 705,420.  The apparatus eliminates or minimises compression of the alkali cellulose crumbs when they are picked from the bottom of the ageing compartment.
Patent GB-810719-A (GB)
Title: Improvements in retractable ball-point pens
IPC: B43K24/02
Filed: 1957-09-25
Abstract: 810,719. Reservoir pens. GASTELL, G. R. FABER-, [trading as FABER-CASTELL, A. W. [Firm of]]. Sept. 25, 1957 [Sept. 25, 1956], No. 30090/57. Class 146(3) In a retractable ballpoint pen the writing unit is mounted within a sleeve which is urged beyond the end of the tubular casing of the pen by a spring, and the ball-point is exposed for writing by pressing the sleeve inwardly of the casing. As shown, a sleeve 3 forming a guide for the writing unit 7 projects beyond the lower part 1 of the casing 1, 2, but can be depressed partially within the casing against the action of a spring 4. A tube 14 frictionally engaging the unit 7 is gripped by a tubular spring 15 the lower end of which is slotted at 16 and formed with lugs 17 which are curved outwardly to lie in a recess 19 of a fixed sleeve 20. A friction ring 21 has limited vertical movements within the sleeve 20. In the upper part 2 of the casing is a cap 30 carrying a pocket clip 31 and a packing 32 of resilient plastic or rubber. When the unit 7 is retracted, the upper end thereof is sealed from the atmosphere . by engagement with the packing 32, and ink leakage is prevented. A return spring 12 engages a flange on the tubular spring 15, and thus acts on the unit 7. When the writing unit 7 is pushed back inside the casing by pressing the ball-point 10 on a surface, the 'lugs 17 of the tubular spring 15 slide until they latch in an annular groove defined by the sleeve 20 and ring 21, and the unit 7 is thus held retracted. The sleeve 3, which is also depressed during this operation, returns to normal so that it projects beyond the ball-point 10. The point 10 is projected for writing by pressing the sleeve 3 on a surface so that the casing 1, 2 moves downwardly over the sleeve. The curved ends of the lugs 17 will then slip out of latching position in the sleeve 20 and, when pressure on the sleeve 3 ceases, the spring 12 causes a forward movement of the unit 7 with the tube 14 so that the point 10 comes into writing position. The device for latching the unit 7 in retracted position may be of known type comprising a ball co-operating with a shaped slot or cavity in a sleeve which is a tight fit on the tube 14. In a further modification, there is no latching device for the unit 7 which is fixed relatively to the casing 1, 2. Normally, the point 10 is within the spring-urged sleeve 3, and writing is accomplished by pressing the sleeve on the writing surface so that it is depressed sufficiently to allow the point 10 to be exposed.
Patent GB-819143-A (GB)
Title: Improved traversing motion in a bobbin winding machine for winding synthetic fibre yarns
IPC: B65H54/28
Filed: 1956-10-04
Abstract: 819,143. Traverse mechanism. INDUSTRIE-WERKE KARLSBRUHE A. G. Oct. 4, 1956 [Dec. 24, 1955], No. 30328/56. Class 120(2) A traversing motion in a bobbin winding machine, for winding yarns in different package forms, includes a cam cylinder 1 provided with a first cam path 2 for winding a single thread into a single package, and a second cam path 3 for winding two threads separately and simultaneously into the packages, the throw of path 3 being approximately half that of path 2. A roller 5 on an arm 6 carried by a traversing rail 7 can be inserted selectively in either cam path in one of the positions shown. Thread guides 8, 9, for winding into one or two packages, are provided.
Patent GB-896616-A (GB)
Title: Improvements in and relating to the manufacture of semiconductor devices
IPC: C25F1/00
Filed: 1958-09-23
Abstract: 896,616. Semi-conductor devices. PHILCO CORPORATION. Sept. 23, 1958 [Sept. 23, 1957], No. 30328/58. Class 37. A semi-conductor device is electrolytically etched in a solution of potassium and/or sodium cyanide and potassium and/or sodium hydroxide, the semi-conductor device being maintained positive with respect to the electrolyte and the quotient of the concentration of hydroxide ions divided by the concentration of cyanide ions having a value of from about 0.25 to zero. A semi-conductor device 28 is washed in distilled water and then connected to the positive side of an electric supply. It is then dipped 8 to 15 times into an electrolyte for periods of half a second at a time. The electrolyte is heated by means of a heating coil 14 and consists of a solution of potassium or sodium cyanide and potassium or sodium hydroxide in water the ratio of molar concentrations being 4 : 1. The semi-conductor device which in this example is a transistor with n-type termanium base zone having electrodes of indium to which nickel leads are secured by means of a cadmium-indium solder, is then washed and encapsulated in a known manner.
Patent GB-335081-A (GB)
Title: Improvements in and relating to the manufacture of alloys
IPC: C22C27/04
Filed: 1929-10-07
Abstract: 335,081. Gray, J., (Pacz, A.). Oct. 7, 1929. Alloys.-An alloy particularly suitable for electric contact terminals consists of copper and silicon together with tungsten or molybdenum or both. It may contain 50-95 per cent of tungsten or molybdenum. 5-50 per cent of copper, and 0.2-5 per cent of silicon. In some cases part of the copper may be replaced by silver, and a small amount of an iron group metal may be present. The alloy may be made by heating copper in contact with a compacted mixture of silicon and tungsten or molybdenum, or by heating a mixture of copper and silicon in contact with compacted tungsten or molybdenum, or by heating copper in contact with a mixture oi silicon and tungsten or molybdenum obtained by reducing mixed oxides resulting from precipitation of mixed solutions of silicate and tungstate or molybdate with acid.
Patent GB-212284-A (GB)
Title: Improvements in cradles
IPC: A47D9/02
Filed: 1922-11-07
Abstract: 212,284. Lacki, W. A. Nov. 7,1922. Cradles.-Mechanical rocking means comprise a wheel 19, a crank arm 23 and a slotted rocking lever 27, a pin on the cradle body engaging the slot 32 in the lever 27. The upper end of the lever 27 is connected to the framework by springs 37, 38 and both pivot points 25 and 29 may be adjustable by means of holes 24, 31. The wheel 19 may be rotated by an electric motor 14.
Patent GB-862490-A (GB)
Title: Chromium co-ordination complex compounds
IPC: C08F8/44
Filed: 1959-09-07
Abstract: Water-soluble co-ordination complexes of trivalent chromium and polymers of ethylenically unsaturated carboxylic acids, or of esters thereof which are saponifiable in the polymerized condition and have been at least partly saponified, may be prepared by reacting the polymers with salts of trivalent chromium.  The acid may be maleic, fumaric, itaconic ethacrylic, methacrylic, a -chloracrylic, furylacrylic or crotonic acid, and specified esters are esters of the above acids with aliphatic alcohols containing 1 to 4 carbon atoms. The polymers may be derived from additional comonomers, e.g. conjugated dienes, vinyl esters, vinyl alkyl ketones, olefins, vinyl aromatic compounds, esters, amides and nitriles of unsaturated acids, vinyl and vinylidene halides, and vinyl heterocyclic compounds, many examples being listed.  Examples describe the preparation of suitable polymers by saponifying a copolymer of ethyl acrylate and t-butyl acrylamide, by saponifying polyethyl acrylate; and by copolymerizing stearyl methacrylate and acrylic acid; vinyl acetate and acrylic acid; styrene and acrylic acid; hexyl methacrylate, styrene and acrylic acid; ethyl acrylate, vinylidene chloride and acrylic acid; ethyl acrylate, methyl vinyl ketone and acrylic acid; vinyl acetate and crotonic acid; methyl methacrylate, acrylonitrile and acrylic acid; ethyl acrylate and acrylic acid; and ethyl acrylate, t. butyl acrylamide and acrylic acid.  Polymerization may be effected in solution in an aliphatic alcohol containing up to 4 carbon atoms, e.g. isopropanol, in the presence of catalysts, e.g. benzoyl peroxide, acetyl peroxide, acetyl benzoyl peroxide, lauroyl peroxide, t. butyl hydroperoxide, acetone peroxide and cyclohexanone peroxide. The preferred chromium salt is the chloride or basic chloride.  The products may be used for coating metals, cellulose films, paper, textile fibres and fabrics, and as bonding and sizing agents for glass fibres in the manufacture of fibre-reinforced plastics and laminates.
Patent GB-703411-A (GB)
Title: Storage bins, shelves, racks, and the like
IPC: A47B47/03
Filed: 1950-12-16
Abstract: 703,411. Storage bins; shelves. DANIELS, C. V., and EVANS,.H. E. March 17, 1952 [Dec. 16, 1950], No 30714/50: Class 52(1) The partitions 1 of a storage bin or rack hinged at the rear edges on vertical rods 2 so that they can be swung back as shown at 8 to lie flat against the back plate of the bin, enabling the size of the compartments to be varied, as described in Specification 564,904, are held in their operative position by spring clips 5. The partitions can also be telescopic for compartments of depth larger than the width. The rods 2 are common to superposed partitions, which are rolled at the front edges 3 to engage the spring clips 5 fixed to the front lips 6 of the shelves. The telescopic partitions are in two parts, one part having its upper and lower edges rolled or turned over to form channels in which the other part slides. One part is hinged to the rod 2 and the other part has a rolled front.edge to engage the clips 5.
Patent GB-1080088-A (GB)
Title: Stackable container
IPC: B65D21/02
Filed: 1966-07-08
Abstract: 1,080,088. Stackable containers. E. I. DU PONT DE NEMOURS & CO. July 8, 1966 [July 9, 1965], No. 30781/66. Heading B8D. A cylindrical container, formed with a chime (17), Fig. 2, at its upper end, has an annular portion (16) at the junction of the side wall (11) and base of the container capable of accommodating the chime of a second similar container when the second container is inverted and placed side-by-side with the first. The annular portion may be in the form of a stepped chamber, Fig. 3, or a radiused edge, Fig. 4. The container, which is vertically stackable, may be impact-extruded from aluminium, or formed from copper, magnesium, steel, or synthetic plastics. A tear-tab may be incorporated in the lid, Fig. 1, for forming a pouring opening in the container.
Patent GB-1398433-A (GB)
Title: Photographic camera
IPC: G03D13/00
Filed: 1972-06-30
Abstract: 1398433 Self-processing cameras EASTMAN KODAK CO 30 June 1972 [2 July 1971 (2)] 30783/72 Heading G2X In a camera for use with self-processing film units 21 each having an image recording portion 23 strippably attached to a rigid frame 29, each unit is exposed, developed and then passed over a stripping member which engages the image recording portion through an aperture in the frame to separate the recording portion from the frame. As shown, after exposure a transporter 57 is pulled out from the camera so that hooks 88 pull the exposed unit through members 68, 69 to rupture a processing agent pod carried by the frame. Springs 87 on transporter 57 then push the processed unit towards the back of the camera against a surface 94. When transporter 57 is pushed in again, the unit passes over a stripping member 84 which, on reaching the edge of the frame, is pushed by a spring 82 through the aperture of the frame to separate the image recording portion 23 and direct it out of the camera through a flap 98; the frame together with the ruptured pod being directed into the back of a cassette 48 containing the units 21. A protective mask 52 is moved from the front to the back of the cassette, before use, by the first reciprocation of transporter 57. In the embodiments of Figs. 15-23 and 24-28 (not shown), the mask is pulled out through slots in the cassette and camera. In Figs. 15-23, the spring 82 is replaced by pins 287 (Fig. 2) which are moved by cam slots (288) in the transporter 57 to shift the stripping member 84. In Figs. 24-28, a pivoted support (313) is deflected by movement of the film unit, whereby a roller (311) carried by the support is moved through the frame aperture to strip off the image recording portion.
Patent GB-159657-A (GB)
Title: Splash guards for motor vehicles
IPC: B62D25/18
Filed: 1919-12-10
Abstract: 159,657. Turner, W. E. Dec. 10, 1919. Lateral-splash guards for motor vehicles. Flexible guards 2, Fig. 2, made of short lengths of chain, rubber, &c., are supported by horizontal rods 4, which are carried in slots 8 of levers 6 and locked therein by nuts 9. These levers are pivoted at 7 to arms 5 attached to the vehicle. The rods 4 can be set at any height by turning the levers 6 about their pivots 7. In a modification, the rod 4 is carried at each end by a lever 6, Fig. 4, pivoted in a slot in the arm 5. At the forward end, a pendulum 11, with a loose bob 12, is pivoted in a casing 10 fitted as an extension to the arm 5. When the vehicle draws near a kerbstone, the pendulum is forced inwards and, by means of coacting levers 13, 14, raises the lever 6 and therewith the guard to the position shown dotted. Each lever 6 is provided with a collar removably engaging in a recess in the arm 5. A pivoted washer formed with a cap secures the collar in place, and is prevented from rising by a spring stud. In another modification, the rod 4 is carried by links 21, Fig. 7. The forward link is connected to a pin-lever 14 engaging a slotted lever 13, the lower end of which carries an inwardly inclined roller 22. When the vehicle draws near a kerbstone, the roller 22 contacts therewith and is forced backwards, lifting the rod 4 and guard 2 forwards and upwards.