baber/WOPTO huggingface dataset:
Patent GB-199765-A (GB)
Title: Improvements in the manufacture of crank-shafts
IPC: B23K9/00
Filed: 1922-02-27
Abstract: 199,765. Hunter, S., and Tindale, J. Feb. 27, 1922. Shafts.-In built-up crank shafts the crankpins and journals are secured in bores of the webs by electric or other welding, with or without shrinking or other securing-means, continuous grooves or spaced recesses to receive the fused metal being formed in one or both sides of the webs, or in the pins and journals, or in both parts. The diameter of the pins and journals may be increased locally or throughout to compensate for the weakening effect of the grooves &c. Fig. 1 shows the alternative arrangements of grooves e in the webs b, grooves f in the parts a, c and a groove g formed in both surfaces. When recesses are employed and are formed in both parts, they may be opposed, as shown at h, Fig. 4, staggered', or staggered and overlapped to produce a sinuous groove.
Patent GB-1260122-A (GB)
Title: Lock casings
Inventor: BROWNLOW JOHN ARTHUR
IPC: E05B9/02
Filed: 1968-08-06
Abstract: 1,260,122. Lock casings. J. A. BROWNLOW. 4 Nov., 1969 [6 Aug., 1968], No. 5781/68. Heading E2A. The front and back plates of a square lock casing are bored with holes to receive the support pins of a variety of lock mechanisms turned round to present the bolts at any of the four sides of the casing and turned over for left or right hand operation.
Patent GB-950041-A (GB)
Title: Unipolar-bipolar semiconductor device
IPC: H03F3/345
Filed: 1962-02-15
Abstract: 950,041. Semi-conductor devices. WESTINGHOUSE ELECTRIC CORPORATION. Feb. 15, 1962 [Feb. 15, 1961], No. 5833/62. Heading H1K. [Also in Division H3] In a monolithic two-stage unipolar - bipolar transistor device comprising a first layer 10 of substantially intrinsic semiconductor material of one conductivity type and a second layer 12 of opposite conductivity type and having first and second mesa zones 16, 17 formed in the second layer and isolated from the rest of this layer, the unipolar state comprising source and drain electrodes 36 and 30a making ohmic contact with the second layer and having gate electrodes 18, 45, the former of which makes rectifying contact with layer 12 and the bipolar stage comprising collector and base electrodes 46 and 28a respectively making ohmic contact with the first and second layers and having an emitter electrode 19 in rectifying contact with the second layer, the drain and base electrodes of the two stages are interconnected by a low resistance bridge 24 which is electrically insulated from the second layer. The device is made by heating an n-type wafer of nearly intrinsic silicon (100-200 ohm cm.) in a Ga atmosphere for 1¢ hours at a temperature of 1200 C., whereby p-type impurity is diffused into the surface of the wafer. One major face of the wafer is lapped and cavities 40, 42 are then cut or etched (using a mixture of HNO 3 , HF acids) into this face, following which gold-antimony foils are alloyed to the " bottom " of the cavity. Alternatively, phosphorus may be diffused into the cavity. A photo-resist is then painted on to the unlapped surface and masks defining the perimeters of the mesas are put in place. Ultraviolet light is shone on to the surface after which the unexposed portions are removed using trichloroethylene, and these portions are then etched using HNO 3 -HF acids until the cavities e.g. 32, extend into the layer 10. A layer of silicon monoxide is deposited at 26 to form an insulating layer over which an aluminium layer 24 is subsequently deposited. The electrodes 45, 46 are then connected to metal foils 50, 52 which are located on isolated portions of the second layer by discharging a capacitor between the electrodes and the foils, whereby a low resistance connection is formed between them as is described in Specification 908,553. A further foil 62 is connected to the foil 52 by means of a portion of the layer 12 which is isolated from the rest of this layer, this portion acting as the resistance across which the output of the device is taken (Fig. 5, not shown). The use of other semi-conductor wafers such as germanium, silicon carbide, indium or gallium arsenide wafers is also mentioned.
Patent GB-1188234-A (GB)
Title: Gear Shaving Machine
IPC: B23F19/06
Filed: 1968-02-06
Abstract: 1,188,234. Gear-finishing. LEAR SIEGLER Inc. 6 Feb., 1968 [8 Feb., 1967], No. 5903/68. Heading B3K. A gear shaving machine adapted for plunge shaving has a workgear supporting table 51 arranged to be rocked in timed relation to the infeed and return movements to effect crowning of the gear G. The table 51 is pivotally supported at 52 on a vertically adjustable knee 22 and is adapted to be rocked to a variable extent by a link 85 connected to an adjustable eccentric 90 carried by a rotary gear 92 having its own drive motor (not shown). Normal infeed and return motion of the knee 22 and table 51 together with the gear G relative to the tool T is effected by the straightening of a toggle linkage (38) 44, 48. The lever 44 is two armed and is connected at one end to an operating fluid pressure cylinder unit 62, 64 and at its other end to a dashpot device 74 controlling the speed of movement. Adjustable abutment screws 68, 82 limit the extent of pivotal movement of the toggle lever 44 and thus also determine the depth of infeed. Rocking may be effected (under the control of suitably placed switches) during a dwell period at maximum depth of feed or partly during infeed and return movements or alternatively may take place continuously several times during infeed and return movement.
Patent GB-1377427-A (GB)
Title: Yarn rebound texturing apparatus and method
IPC: D02G1/16
Filed: 1972-02-08
Abstract: 1377427 Impact crimped yarn UNIROYAL INC 8 Feb 1972 5924/72 Heading D1F A method of texturing a thermoplastic multifilament yarn Y comprises advancing the yarn longitudinally of itself in a stream of heated fluid advancing longitudinally of the yarn, hurling the yarn toward a stationary foraminous surface 41 by means of said stream of fluid while passing at least part of the fluid through the surface 41, impinging the yarn on the surface 41 with sufficient force to induce a compression crimp in the yarn, instantaneously rebounding the yarn from the surface in a continuous strandlike stream, and advancing the rebounded yarn away from the surface and collecting the yarn. The yarn Y is advanced through a tube 25, the outlet end of which is surrounded by a yarn chamber 33. The tube 25 is held centred within the chamber 33 by means of vanes 38 extending between the outer wall of the tube 25 and the inner wall of the tube 34 forming the chamber 33. The heated fluid is preferably steam, at a pressure of 105-170 pounds per square inch gauge, which is introduced into a chamber 26 surrounding the tube 25 and flows between the vanes 38 into the yarn chamber 33 where it picks up the yarn leaving the tube 25 and hurls it against the foraminous surface 41. The yarn is compression crimped against the surface 41 and rebounds to leave the chamber 33 via an opening 40 in the side wall thereof. The extent of rebound is limited by a surface 48 or by a yarn delivery tube 49. The exit end of the chamber 33 is preferably of convex configuration, and the foraminous surface 41 is pressed against this configuration to assume a mating concave configuration. The yarn is hurled against the central portion of the concave configuration. The yarn Y is preferably drawn prior to crimping, and the crimped yarn is subjected to heat-setting and cooling treatments within a J-tube. The yarn is tensionless during the heat-setting and cooling treatments. The foraminous surface 41 is preferably a wire mesh and is positioned at the entrance of an exhaust tube 53 through which the heated fluid is withdrawn. In a preferred embodiment, the yarn delivery tube 49 is provided with a slot in its lower surface and a pair of nip rolls 57 is positioned beneath the slot. In the event of a filament becoming trapped in the mesh of surface 41, a loop of filament is formed which falls through the slot to be trapped by nip rolls 57. The nip rolls are rotated and hence pull the trapped filament from the surface 41, and the process is continued uninterrupted.
Patent GB-397855-A (GB)
Title: Improved apparatus for lubricating axles, rollers, pins or the like
IPC: F16H57/05
Filed: 1932-02-29
Abstract: 397,855. Force-feed lubrication. CHALMERS, R. A. and TECALEMIT, Ltd., Great West Road, Brentford, Middlesex. Feb. 29, 1932, No. 6101. [Class 12 (iii).] Apparatus for lubricating moving axles, rollers, chain spindles, or the like, comprises a number of lubricators arranged to be revolved through a circular path by their engagement with successive chain spindles, or a single lubricator which is assisted during part of its revolution through the circular path by its engagement with one of the chain spindles and is moved throughout the remainder of the circular path by means actuated by successive chain spindles ; the lubricators in either case being at all times held at the same angle to the direction of movement of the chain. As shown, four lubricant containers 29 are mounted on the arms of a spider 30 rotatable on a pivot pin 31 fixed to a base plate 33. A second spider 46 is mounted in a bearing 48 on the base 33. The low pressure cylinder 35 of a lubricating gun has a branch 36 mounted in the end of an arm of the spider 46 and a branch 37 mounted on an arm of the spider 30 and connected to a reservoir 29. The socket 53 of the delivery tube 52 of each gun engages one of the nipples 78 of the chain 50 so that as the chain moves the spiders 30, 46 are rotated and the lubricating guns are actuated to discharge lubricant through the nipples 78, the guns being always positioned perpendicularly to the direction of movement of the chain. The base plate 33 is slidable on two rods 67, 68, carried by a bracket 69, and is forced towards the chain 50 by springs 70, 71, on rods 72, 73, fixed to the plate 33 and slidable in a member 75 on a lever 76 pivoted to the bracket 69. The lever 76 is held by a pawl 77 in the operative position. The lever 76 may be moved to withdraw the lubricators from engagement with the chain. In a modification in which five lubricators are used, the latter are connected to discs instead of spiders 30, 46, and are all fed from a single lubricant container. In another modification for use with a large pitch conveyer chain 122, Fig. 9, a single grease gun 84 only is used which is mounted on spiders similar to the arrangement in Figs. 5 and 6. The spiders are rotated by a chain 98 and the latter is driven by the engagement of catches 108 with the chain spindles 95, the catches 108 being fitted to a chain 107 passing round sprocket wheels mounted in brackets 102, 106. Each catch 108 is moved into the path of the spindles 95 by the engagement of a roller 115 on the catch with a track 119, and is withdrawn from the path by the engagement of another roller 113 thereon with the curved end 116 of a track 118.
Patent GB-564935-A (GB)
Title: Improvements in or relating to electrical overload and like cut-out arrangements
IPC: H01H71/32
Filed: 1943-04-16
Abstract: 564,935. Electromagnetic relays. STANDARD TELEPHONES & CABLES, Ltd., and YULE, W. H. D. April 16, 1943, No. 6109. [Class 38 (v)] A sensitive high-speed relay has its armature normally held lightly against one part A of the bifurcated pole A, B of a permanent magnet; overload current of suitable direction in a coil mounted on A neutralizes the permanent magnetism in A so that the armature is attracted to B and after a short movement will reach a position in which the permanent magnetic forces are sufficient to carry it right over into its final position. The pole A may be made smaller than the pole B or A and B may be made of different magnetic materials, or the air gap at A may be made larger than at B, or the armature may be mechanically biassed. Specification 496,697 is referred to.
Patent GB-267144-A (GB)
Title: Improvements in or relating to mooring masts for airships
IPC: B64F1/14
Filed: 1927-03-04
Abstract: 267,144. Nobile, U. March 5, 1926, [Convention date]. Void [Published under Sect. 91 of the Acts]. Closed hooks.-Ropes 3<1>, 3<11> from an airship and its mooring-mast respectively are connected by hooks 9<1>, 9<11> by placing the hooks with their axes at right angles.
Patent GB-373232-A (GB)
Title: Improvements in or relating to turbines, fans and pumps
IPC: F03B5/00
Filed: 1930-11-15
Abstract: 373,232. Turbines ; screw fans. SILBERMANN, E., 39, Strada Vlaicu, Oradeamare, Roumania. Nov. 15, 1930, No. 6219/32. Divided on 369,222. [Classes 110 (i) and 110 (iii).] In a turbine, fan, or pump, the rotor (or rotors) has passages formed in it or on its surface shaped so that the main lines of flow conform to geodesics to a surface of revolution coaxial with the rotor, other than a cylinder. The Figure shows a three-rotor turbine with an explosion chamber 8 with ports 9, 10, for the mixture inlet and ignition plug. The rotors may be packed on their 'peripheries or have annular ribs 6 preventing leakage of gas. The rotors may be built up of several discs. The driving medium may be petrol, crude oil, steam, or an explosive, the flow being continuous or in the form of intermittent impulses.
Patent GB-232742-A (GB)
Title: Acid and chemical-proof structures for electrolytic, metallurgical and chemical operations
IPC: C04B28/36
Filed: 1924-03-12
Abstract: 232,742. Consolidated Mining & Smelting Co. of Canada, Ltd., Willis, F. S., and Stimmel, B. A. March 12, 1924. Drawings to Specification. Plastic compositions containing sulphur. - A chemical-proof lining consists of a composition containing 30-40 per cent of sulphur, and 70-60 per cent of sand. The sulphur is melted, the sand is stirred in, and the temperature is raised to about 150‹ C. when the mixture becomes pasty, in which state it is cast, or used as a plaster.
Patent GB-574801-A (GB)
Title: Improvements in or relating to protective arrangements for electric supply systems
IPC: H02M7/06
Filed: 1941-05-16
Abstract: 574,801. Protective arrangements. GENERAL ELECTRIC CO., Ltd., DALE, S. H., and THOMPSON, W. G. May 16, 1941, No. 6338. [Class 38 (iv)] An excess voltage protective device for a supply system, particularly a D.C. traction supply system 1 fed from an A.C. source through a rectifier 5 and wherein regeneration of the vehicle motors may cause over-voltage conditions, comprises a carbon pile resistance 2 connected across the supply and means for automatically applying pressure thereto upon the occurrence of over-voltage, or of conditions associated with or foreshadowing over-voltage, for instance, current reversal or rapid rate of rise of voltage. By this means the pile, which is normally in a high resistance condition, heavily loads the system and prevents excessive voltage rise. In the form shown, the pile is normally retained in high resistance condition by a spring 3 which under over-voltage conditions is overcome by a winding 4 energized by the difference between the system voltage and a fixed reference voltage 6. Several other methods of varying the pressure on the pile are described including voltage responsive and reverse-current responsive devices controlling a pressure applying winding connected in series with the pile, which may have a further winding fed from the supply through a differentiating winding so as to be responsive to rate of rise of voltage. A number of piles may be connected in cascade.
Patent GB-103404-A (GB)
Title: Improvements in or relating to the Making of Roadways.
Inventor: CHAPMAN JAMES
IPC: E01C9/02
Filed: 1916-05-04
Abstract: 103,404. Chapman, J. May 4, 1916. Wheel-tracks; draining-channels.-Relates to wheel tracks formed of parallel and continuous strips of concrete embedded in the roadway, and consists in providing strips level with the road surface which are moulded in situ and reinforced with embedded metal. In one form, a pair of tracks as d, e are formed of reinforced concrete moulded in situ in trenches prepared in the road a. The tracks are made wide enough to accommodate vehicle wheels of different gauges. The upper faces of the strips may be flat or rounded and the edges may be bevelled or reinforced with metal. When the upper faces are concave or grooved, they form draining-channels. In some cases, the reinforcement of the concrete tracks is level with the upper face, and of such a character as to prevent waves from being formed in the tracks. A third track f may be added, so that provision is made for both broad and narrow gauge traffic,
Patent GB-467810-A (GB)
Title: Improvements in or relating to textile combing machines
IPC: D01G19/02
Filed: 1937-03-04
Abstract: 467,810. Combing-machines. NASMITH, J. W. March 4, 1937, No. 6393. [Class 120 (i)] In a rectilinear combing- machine for wool, a single continuous feed lap is produced by feeding at least three lap thicknesses of irregular length of which the internal lap is the longest, converting this internal lap into an external one in substitution of the first which runs out and feeding the end of a new and full internal lap between the external laps. As shown, the combined laps pass through rollers D, A being the internal lap. The lap C runs out first, lap A is then transferred to position C, a new lap mounted at A and its end inserted between the other laps. When lap B runs out, the remainder of the new lap at A is transferred to B, a new lap mounted at A and its end fed between the running laps from positions B and C.
Patent GB-661980-A (GB)
Title: Improvements in or relating to drawing instruments
IPC: B43L13/10
Filed: 1949-03-09
Abstract: 661,980. Pantographic apparatus. BELL, L. H., BAINBRIDGE-, and BUCKINGHAM, J. March 28, 1950 [March 9, 1949], No. 6400/49. Class 97 (iii). A pantographic linkage with which a drawing may be reproduced with a change of scale along one of two rectangular axes, e.g. for drawing an ellipse from a circle, for redrawing a graph curve with a change of scale along one axis only, or the reproduction of a drawing with dimensions fore-shortened in one direction to give an impression of perspective and facilitation of isometric projection by reduction along one axis in the ratio of 3 to 1, has no fixed point but has means to constrain a point on a line through the tracings and drawing points to move, in the plane of the linkage, only perpendicularly to said line. As shown, an interpivoted four link pantograph has a point C on the line connecting the drawing point D and tracing point T, and a second point C<SP>2</SP> constrained to move along a straight track rail 7 secured firmly to the drawing board at right angles to the line D, T, and the constrained points c, c<SP>2</SP> and the tracing point T (or the drawing point D) are equidistant from the common pivot p<SP>2</SP> of the links. Each of the follower members provided at c and c<SP>2</SP> comprises a block 9, Fig. 2, having a pintle 10 and a pair of ball bearings 11 inclined so that their outer races rest as wheels on the rail 7. Smooth feet 12 and 13 are provided on arms 3 and 1 to limit rocking and adjustable balance weights 15 on arms 2 and 3 are provided to adjust the poise on the rail 7. The use of a straight line track may be avoided by a combination of Peaucellier cell linkages. In an alternative arrangement the constrained point  C 2 may be located on the arm 2, and then the arms c<SP>2</SP>, p<SP>1</SP>; c, p<SP>1</SP> and D, p<SP>1</SP> must be equal. To avoid lateral inversion of the drawing produced by the arrangement described, the common point p<SP>3</SP> is used as the drawing point and the free end of one of the long links 1, 2 is used as the constrained point c. The second constrained point being on the arm 1 as at c<SP>2</SP>, Fig. 1, or on the prolongation of the arm 3.
Patent GB-355721-A (GB)
Title: Improvements in or relating to apparatus for the permanent waving of hair
IPC: A45D4/06
Filed: 1930-02-26
Abstract: 355,721. Hair - - waving appliances. CASTELLA, R. and NANTUA, J., 1A, Rue des Jumelles, Lausanne, Switzerland. Feb. 26, 1930, No. 6414. [Class 131.] A hair-waving appliance comprises a tapering protective sheath 4 having an inner lining of heatresistant fibrous material, e.g. asbestos, which is placed over the tress of hair wound on a curler 2 and rests lightly on a cup-shaped protective device 13, through an aperture in the bottom of which the hair is passed, the upwardlytapering edge of the device 13 being reinforced by a metal ring 14 so that the vapours evolved from the treating lotion which is applied to the hair can emerge from the lower end of the sheath and pass between the sheath and the ring 14 into the outer air, without coming into contact with the scalp. The outer cover of the sheath 4 consists of a thin foil of metal, e.g. aluminium. The sheath may be formed by gumming the outer metallic and the inner fibrous layers together and winding the sheet thus formed conically, or the sheet may be wound conically or cylindrically and secured by an outer ring. The metallic outer layer of the sheath may have a colour which varies when heated, or may be covered with paper which undergoes perceptible variations when heated. The hair is covered by a wrapper of prepared gauze, not shown, and the upper end of the sheath 4 is pressed tightly against the curler 2, the swelling of the gauze during heating sealing the upper end of the sheath. The aperture in the bottom of the cup 13 is placed eccentrically and is surrounded by radiating slits 17 so as to form prongs which press upon the hair. A protecting disc 18, preferably of rubber, provided with a central aperture and radiating slits 20 is threaded on the hair beneath the cup 13. The appliance may be heated by a heater of the kind described in Specification 352,088, and comprising a handle carrying a tubular electric heater which is adapted to be placed over the sheath 4 but is so dimensioned that it cannot touch the bottom of the cup 13, or by a heater comprising a massive tubular body heated, e.g. by a burner or in a stove, before it is applied to the sheath.
Patent GB-782803-A (GB)
Title: Arrangement in dismountable office swivel chairs
IPC: A47C3/34
Filed: 1956-03-01
Abstract: 782,803. Revolving chairs. FOLKNER, F. March 1, 1956 [March 19, 1955], No. 6451/56. Classes 52(1) and 52(2) In a dismountable swivel chair having a seat 1, adjustable back rest 6, 7, arm rests 4 and a spider 14 mounted on castors and provided with a central journalling sleeve 9 to receive a tubular seat pivot 8 the device for providing height adjustment and springing is constructed as a separate closed unit consisting of a sleeve 10 closed at its lower end by a plug and containing a helical spring 19 and a piston head 17 mounted on a pin 18 and having a spherical recess for a steel ball 20 above which is a corresponding piston head 16 with a similar recess and connected to an upwardly projecting spindle 15 which frictionally engages within pivot 8 when the chair is assembled. A pin 21 prevents the parts from falling out of sleeve 10, the lower end of which is placed into sleeve 9 and a locking device for height adjustment consists of an arm 11 welded to sleeve 10 and carrying a spring-loaded pin with knob 12 and which pin engages one of a series of holes 13 in sleeve 9. The pin 18 which is shorter than spring 19 acts as a stop to prevent the spring 19 being damaged by overloading.