baber/WOPTO huggingface dataset:
Patent GB-812876-A (GB)
Title: Improvements in or relating to milling machines and the like
Inventor: PERKINS JOHN EWART
IPC: B23Q35/10
Filed: 1957-07-04
Abstract: 812,876. Copy-milling. WESTLAND AIRCRAFT Ltd. July 4, 1957, No. 21214/57. Class 83 (3). [Also in Group XXIII] A milling machine &c. comprises a driving head 20 having a roughened surface engaging a soft strip 30 on a saddle 25. A template 27 and a workpiece 26 are mounted on the saddle 25, the aluminium strip 30 on the saddle being held against the serrated wheel 20 by rollers 107 attached to spring, pneumatic or hydraulic means. The wheel 20 is rotated to move the saddle along a slide 21 by a motor 15 driving through a flexible shaft 17 and a gear-box 18, in which epicyclic gearing can be controlled manually through a friction clutch or brake. The milling cutter 28 and a concentric follower 34 are moved into engagement with the work and template, by a handle 13 attached to a rod carrying the cutter and its motor 3 at one end and pivoted at its other end to a lever 5. The lever carries a balance weight 7 at one end and is limited in its movement by stops 9, 10. Specification 785,548 is referred to.
Patent GB-206244-A (GB)
Title: Improvements in and relating to safety devices for electric winding engines and the like
IPC: B66B1/48
Filed: 1922-08-03
Abstract: 206,244. British Thomson - Hottston Co., Ltd., Pool, W. J., and Trutch, C. J. H. Aug. 3, 1922. Overwinding, preventing.-In means for preventing overwinding of the kind described in Specification 113,509, in which limit switches are operated when the hoist passes outside the predetermined limits of travel and in which the operator can close an alternative circuit while the limit switch circuit remains broken, in order to bring back the cage within the limits, but cannot reverse the cage to move in the original direction again until the limit-switch mechanism has been re-set in its acting position, a construction is used which is adapted equally for use with a drum type of controller, a reversing switch with liquid rotor controller, or a complete contractor control. In the present construction a sliding member of an interlocking switch 7 is connected to the master controller so as to move with the reversing switches 5. In the hoisting position the left-hand edge of the sliding member is in the position marked a, and the contact studs 9, 10 are connected. In the lowering position the right-hand edge of the member is at b and the studs 8, 9 are connected. An overwind, in hoisting, opens the limit switch 1 thereby de-energizing :he circuit of the electromagnetic circuit-breaker 3 and that of the brake 6. To restore the cage, the switch 7 must be moved first into the neutral or lowering position, so that the studs 8, 9 are connected. The switch 1 can then be short-c rcuited by closing the switch 16 by hand, the same movement opening switch 11. This arrangement of circuits prevents the cage from being hoisted again until switch 16 has been re-closed and switch 11 opened. At the lower limit of travel the limit switch 2 and the switches 13, 15 act similarly to those described above. In some cases the restoring switches 13, 16 are re-set automatically as the cage returns within the limits of movement. A projection on the depth indicator or like part trips an arm on the switches in this case.
Patent GB-531434-A (GB)
Title: Improvements in, and connected with, emergency stop switches for electrical apparatus
IPC: H01H3/02
Filed: 1939-07-22
Abstract: 531,434. Switches held set and freed mechanically. CRABTREE & CO., Ltd., J. A., McLOUGHLIN, H. F., and HILL, W. E. July 22, 1939, No. 21317. [Class 38 (v)] Pressure on a cover plate a, hinged at g, moves a contact-carrying plunger e into the " off " position and releases a spindle m so that this rotates under the action of a spring o and brings shoulders n<1> on the spindle into a position in which they prevent the return movement of the plate a. The spindle m may later be rotated by a tool which engages the head s so as to allow the plate a to move back under the action of a spring h. The plate a has a projection d which engages the plunger e, and the plunger e which carries a bridging contact i is biassed by a return spring j.
Patent GB-1342907-A (GB)
Title: Continuous sheet slitting mills
IPC: B21C47/00
Filed: 1971-04-19
Abstract: 1342907 Winding longitudinally slit strip B D PLANTARD 19 April 1971 [12 Feb 1970] 21367/71 Heading B3E In a sheet slitting mill comprising a tension device 6 for braking simultaneously and without any friction a plurality of strips delivered to a common coiling drum 4 and wherein the necessary braking effort is transmitted to endless belts, the tension device comprises braking means permitting different speeds of said belts, which speeds are respectively equal to those of the corresponding slit strips to be braked. The slitting installature comprises a coil of metal sheet 1, a deflector roll 2, a multiplecutter shearing device 3, a separator 5 and the drum 4. The strips 2b, Fig. 2, pass through a set of clamping belts 2c and are then deflected by a roll 2d before being coiled in the drum 4. The belts pass over separately brakable pulleys 2e and are pressed against the strips by a row of rollers 2f against which presses an inflatable elastic bladder 2h. The belts are guided laterally by rollers 2i. The pulleys are arranged in staggered relationship so that braking means (3a) Fig 3 (not shown) actuated by an expansible toroidal bladder (3f) can be interposed between each pair of pulleys. In a modification, Fig. 8, the belts are braked by hollow clamping plates 13 through which passes a cooling fluid the plates be - ing actuated by inflatable bladders 16. Composite belts, e.g. polyurethane with a thin adhering layer of stainless steel are used in this modification. The tension device can be located in any desired position in the installation (Figs. 5, 6 and 7, not shown).
Patent GB-694926-A (GB)
Title: Improvements in or relating to bar bending machines
IPC: B21D11/12
Filed: 1951-09-11
Abstract: 694,926. Angular bending. WAGENBACH, A. Sept. 11, 1951 [Sept. 11, 1950], No. 21370/51. Class 83 (iv). A sweep arm bar-bending machine for producing Z-bends in ferro-concrete reinforcement rods, comprises a stationary abutment consisting of a polyhedral cam 2 which is turnably mounted about a pin 1 adjustably mounted on the bending table 3. The operative face of the cam comprises a succession of flat surfaces each of which is situated at a greater mean radial distance from the axis of rotation than the preceding face. The invention allows of varying degrees of overbending to be applied to the work x by a pin 6 on a sweep-arm 4 having a pivotal abutment 5, to allow for the spring-back of bars when removed from the bench, according to the nature of the work-piece. The cam is locked by a nut and has index marks 8 cooperating with a datum mark 9 on the pin 1.
Patent GB-1306385-A (GB)
IPC: B65C3/16
Filed: 1970-05-04
Abstract: 1306385 Ornamenting R WARSAGER 4 May 1970 [27 March 1970] 21450/70 Heading B6G A machine for applying a decorative material from a transfer tape to an object comprises a die mounted on the machine for reciprocal movement to and from the object, means for retaining and displacing the object to bring it into and out of engagement with the die, a holder mounting a transfer tape such that the tape lies between the object and the die whereby as the object is pressed against the die the material is transferred from the transfer tape to the object, pull rollers for advancing the transfer tape after each pressing operation, and synchronizing means to move the die, rotate the object and advance the transfer tape at the same velocity. As shown in Fig. 5, die 30 is fixed to carriage 31 freely slidable on guide rails 33 under the influence of an air cylinder 34. Preferably the die is heated by electrical means. A platform 19 is firmly constrained to vertical movement and is raised up and down by air cylinder 17. As shown in Fig. 6, a housing 23 is mounted on top of the platform and an arm 24 is rotatably secured to the housing 23. Arm 24 can be in the form of a mandrel and the object 25 to be decorated is placed on the mandrel 24. Tape 27 having a foil thereon which is to be transferred to the object 25 is fed from reel 26 around guides 28 and between a pair of pull rollers 29 having a surface which will grip the tape. Fixed to the carriage 31 and to the die 30 are a pair of rack gears 37 and 38 pivotably mounted at one end thereof about ends 39. Upper rack gear 38 drives a pinion gear 40 rotatably mounted on a shaft 40a fixed to rod 33. The gear 40 has a sprocket 41 fixed thereto which is linked by a chain 42 to a double sprocket 43 rotatably secured to a shaft 43a fastened to the rod 33. Sprocket 43 also has a chain 44 attached thereto which drives another sprocket on the pull roller 29. Movement of the carriage 31 to the right thereby causes the tape to be advanced. The lower rack gear 37 engages a pinion gear 45 fixed to a shaft which in turn drives the object 25. The pinion gear 45 has a pitch diameter equal to the diameter of the object 25. The gear 40 has the same pitch diameter as the gear 45. When the carriage 31 moves laterally across the rods 33, the object is thereby driven at the same velocity as the moving die 30 and the pull rollers 29 and therefore the tape 27. Air cylinder 17 raises the object 25 to a point where it bears against the die 30 during the lateral movement of the die and as the die traverses the surface of the object it bears on the tape and the pressure and heat applied to the die enables a transfer foil on the tape. A rack guide (Fig. 1, not shown) may be used to firmly maintain the rack gear 37 and the pinion gear 45 engaged.
Patent GB-421837-A (GB)
Title: Improvements in or relating to variable electric inductances
IPC: H01F29/10
Filed: 1933-07-31
Abstract: 421,837. Inductances. GENERAL ELECTRIC CO., Ltd., Magnet House, Kingsway, London, and SAUNDERS, N. F. T., c/o General Electric Co., Witton, Birmingham. July 31, 1933, No. 21483. [Class 37] A variable inductance for use at power supply frequencies comprises a winding associated with a solid or unlaminated core having an airgap which can be adjusted by a screw. The core 3 includes a resilient portion 1 which is strained by a bolt 5 to vary the width of the gap 4. In a modification the central core part is adjustable with respect to the outer core surrounding the coil winding. The core may be constructed of insulated and moulded magnetic particles. Two or more relatively thick strips of magnetic material may be employed as the core. The bolt 5 instead of passing through both limbs of the core 1 may bear against the upper limb.
Patent GB-928895-A (GB)
Title: Improvements in or relating to vehicle window regulators
Inventor: MOSS NORMAN SIDNEY
IPC: E05F11/44
Filed: 1960-06-18
Abstract: 928,895. Vehicle window regulators. WILMOT-BREEDEN Ltd. June 19, 1961 [June 18, 1960], No. 21503/60. Class 20 (3). Opening and closing mechanism for a vertically sliding and vertically curved vehicle window 1 comprises a window support channel 9 in which slides a ball-ended lifting stud 17 attached to the end of a lifting arm 7 which is pivotally mounted on an axis B-B inclined to the longitudinal axis C-C of the window and is attached to a toothed segment 12 driven by a pinion 13 mounted on a manually rotatable shaft 14. The toothed edge of the segment 12 is dished so that its teeth lie in a plane normal to the axis D-D of the drive shaft 14. The weight of the window is counterbalanced by a spring 25 which is connected between a back plate 5 and the segment and surrounds the pivot axis of the segment and arm 7.
Patent GB-196531-A (GB)
Title: Improvements in garters
IPC: A41F11/16
Filed: 1922-08-08
Abstract: 196,531. Reavis, B. G. Aug. 8, 1922. Sock suspenders.-A sock suspender of the kind including a strip which twice encircles the leg, comprises straps 5, 3 and connecting rings 4, 9 to each of which is attached a suspending-device 10. The strap 5 carries a button 8 which engages the ring 9, and a slide buckle 7 for adjusting its length.
Patent GB-1140163-A (GB)
Title: Improvements in or relating to apparatus for scoring a paper web or the like
IPC: B31B50/25
Filed: 1967-05-09
Abstract: 1,140,163. Scoring paper &c. KOPPERS CO. Inc. 9 May, 1967 [18 Oct., 1966], No. 21570/67. Heading B6J. Rotary scoring apparatus comprises a pair of substantially identical diametrically split scoring heads 10, 12 clamped to shafts 14, 16 by screws 18, each head having a central portion 24 and side portions 26, 28 of reduced diameter, the portion 26 defining a shoulder to which can be attached a variety of male or female scoring profiles, interchangeably, by means of screws 38 passing through holes 40 in the profiles into threaded holes 42 in the major portion of the head. A male profile attached to head 10 comprises a score ring 36 of hardened steel between rings 32, 34 undercut so as to pass over the edge of portion 24. A female profile attached to head 12 comprises an inner metallic ring 48 and an outer ring 50 of plastics, e.g. polyurethane, natural or synthetic rubber. The profiles are also diametrically split, along the line 44.
Patent GB-1090258-A (GB)
Title: Process for the transparent dyeing of cellulose acetate
Inventor: KOHLER WILLY
IPC: C08L1/12
Filed: 1965-05-21
Abstract: Cellulose acetate is transparently dyed by dissolving an alcohol-soluble dyestuff in an alcohol having 1-4 carbon atoms, mixing the solution with all or part of the plasticizer necessary for plasticizing the cellulose acetate and mixing the solution so obtained with cellulose acetate.  In preferred methods (a) the solution of the dyestuff in the alcohol-plasticizer mixture is added, with stirring, to a solution of cellulose acetate in solvent mixture consisting preponderantly of chlorinated methanes; (b) the solution of the dyestuff in the alcohol-plasticizer mixture is mixed, with stirring, with powdered or granulated cellulose acetate and this is then brought into solution by the slow addition of solvent. Preferably, the dyestuff is an alcohol-soluble 2:1 metal complex dyestuff. Dyes exemplified include cobalt and chromium complex dyes, and also nigrosine. Specified alcohols include ethanol, specified plasticizers include dibutyl phthalate and dioctyl phthalate, and cellulose acetate solvent mixtures include a mixture of methylene chloride and methanol.  Solutions obtained may be cast to give clear, transparently dyed films, or may be used in the production of paints or of fibres.
Patent GB-898572-A (GB)
Title: Improvements in friction gripping rollers
Inventor: KNIGHTS RICHARD NORTHAM
IPC: E21B19/16
Filed: 1959-06-24
Abstract: 898,572. Screwing-up pipes. DOWTY ROTOL Ltd. June 24, 1960 [June 24, 1959], No. 21708/59. Class 83 (3). [Also in Group XXIV] A vertical pipe 14 in an earth-drilling installation is engaged and supported by three friction rollers 11, 13, 13 each of which comprises a stack of dished resilient metal washers 26, Fig. 2, spaced by washers 27 of rubber or the like. The washers 26 engage splines on a shaft 15, and are clamped against an abutment (not shown) thereon by a threaded ring 29. The rollers 13 are pressed against the pipe 14 by hydraulic jacks 21, 23 while the driving roller 11 spins the pipe 14 on to or off the string of drill pipe. The edges of the dished washers yield to provide an adequate friction surface to support the weight of the pipe.
Patent GB-263442-A (GB)
Title: Improvements in flexible ladders
IPC: E06C1/56
Filed: 1926-09-03
Abstract: 263,442. Hardwick, F. F. Sept. 3, 1926. Ladders.-A flexible ladder comprises a cable or cables 1 and sheet-metal rungs with ends turned upwards and inwards to form foot stops and supports for distancing-rods 5 which bear against the wall. The ladder may be formed with either one or two cables and the rungs are secured to them by sockets 9 and wedges 10. The distancing-rods are provided with shouldered screw-threaded ends and are secured in the rungs by nuts 7. Each cable is provided at its upper end with a snaphook 2 whereby the ladder can be supported.
Patent GB-842201-A (GB)
Title: Swivel pipe coupling
Inventor: FACCOU ARMAND LYKKE
IPC: F16L27/08
Filed: 1958-07-07
Abstract: 842,201. Pipe couplings. FOOD MACHINERY & CHEMICAL CORPORATION. July 7, 1958, No. 21715/58. Class 99(1). A fluid-conducting swivel coupling 10 comprises inner and outer tubular members 12, 14 journalled for relative rotary motion and restrained from relative axial motion, and an annular seal 76 of sheet material rigidly secured to one of the members and extending radially therefrom across a clearance space 40 between the members into sliding sealing engagement with a radially extending annular face 72 of the other member. As shown in Fig. 1, the members are retained in coaxial alignment by balls 28 accommodated in races 24, 26 formed in the members, and the member 14 comprises a socket 52 and coupling section 54 releasably but rigidly secured to each other by screws 56 extending through the flange 62 of the section 52 and screwed into holes in the flange 66 of the section 54. The seal 76 of slightly flexible sheet material has the outer peripheral portion thereof engaged between the flanges 62, 66 and is located by the shanks of the screws 56. An annular recess 86 in the section 54 houses a backing ring 94 which serves to distribute the force exerted by a number of springs 88 throughout an annular area of the inner peripheral region 80 of the ring 76 and causing the latter to press against the end face 72 of member 12 ; the springs are loosely mounted on pins 90, and displacement of the ring 94 from the recess is prevented by tongues 96 projecting radially inwardly from the wall of the recess. A shoulder 102 on the ring 94 provides an annular space 104 between the ring and the ring 76, and a clearance 106 between the ring and recess 86 allows fluid conveyed by the coupling to penetrate to the space 104 and act on the ring 76. By loosening all and removing one of the screws 56, the ring 76 may be withdrawn from between the flanges 62, 66. In modifications, the periphery of the ring 94 is relieved at apaced intervals to provide sectors thereof of reduced radius, to form with the tongues 96 a bayonet joint arrangement whereby a rotary movement of the ring allows the ring to be releasably retained in the recess 86, and the member 12 is formed with an external, annular groove for reception of a sealing ring so that lubricant between the members is retained in the space 40.
Patent GB-716940-A (GB)
Title: Pipeline transportation of solid materials and petroleum products
Inventor: JR WALTER MARTIN CROSS
IPC: B65G53/30
Filed: 1952-08-29
Abstract: 716,940. Conveying solids in liquids. KANSAS CITY TESTING LABORATORY. Aug. 29, 1952, No. 21744/52. Class 102 (2). In a mixture of a normally liquid petroleum product and a granular material, the size of the granules and/or the viscosity of the petroleum product are adjusted so that the maximum rate of settling of the granules is not more than one foot per minute to enable the mixture to be pumped over long distances in a pipe line at the exit of which the granules and the liquid are separated. The size of the granules may be adjusted by controlling the rate of crystallisation of an aqueous solution or the granules may be in the form of an aqueous suspension and may be mixed with the petroleum product in the presence of an emulsifying agent. The viscosity of the petroleum product may be adjusted by the addition of metallic soaps, e.g., copper stearate or aluminium stearate, or a gelling agent, e.g., asphalt. A corrosion inhibitor for a metallic pipe line may be added or conventional scraping means may be fitted to the pipe line.
Patent GB-1499816-A (GB)
Title: Orchard spraying machines
IPC: A01M7/00
Filed: 1974-05-16
Abstract: 1499816 Spray-producers DRAKE & FLETCHER Ltd 15 May 1975 [16 May 1974] 21789/74 Heading B2F [Also in Division A1] An orchard spraying machine comprises a vehicular frame 1, Fig. 1, having wheels 2 and a towbar 3 and carrying a casing 6 forming a chamber and an insecticide tank 7, a fan 8 housed in a forward open end of chamber 6, and a set of vanes 18, Fig. 2, directing the flow of air from the fan radially from the chamber. The fan is driven by belt drive 13 connected to shaft 11 which is connected by gearing to a transmission shaft 4 for attachment to a tractor power take-off shaft. The fan shaft 9 also, by drive shaft 31 and belt 30, drives an agitator 27 in the tank 7. The air from fan 8 is directed along twelve channels by the vanes 18 and guide plates 20, 24 and 25, which channels are directed at least generally horizontally at their outlets. Insecticide is fed from tank 7 by pipe 15 to pump 16 driven by either shafts 4 or 11 and thence by pipe 17 to a spray boom 14 having nozzles from which the insecticide is entrained by air leaving the channel outlets. There may alternatively be sixteen air channels and the outlet directions varied, Figs. 4 and 6 (not shown), and a guard grid is optionally fitted in front of the fan. The belt 13 may be replaced by a chain or gears. The air leaves the outlets within an angularly spaced pair of arcs each between 30‹ below and 40‹ above the horizontal.
Patent GB-1515564-A (GB)
Title: Reinforced hose
IPC: F16L11/08
Filed: 1975-05-21
Abstract: 1515564 Reinforced hoses INDUSTRIE PIRELLI SpA 21 May 1975 [21 May 1974] 21798/75 Heading F2P A reinforced elastomeric hose comprises, from the inside to the outside, a layer 1 of elastomeric material, a first reinforcing sheath 2 of interwoven threads, a layer 3 of elastomeric material, a second reinforcing sheath 4 of interwoven threads and a covering layer 5 of elastomeric materials, either of sheaths 2 or 4 comprising threads formed of parallel filaments, of polyvinyl alcohol, each filament being covered with a film of adhesive dried on to each individual filament before formation into a sheath. In a preferred embodiment both sheaths 2 and 4 comprise threads formed of adhesive coated parallel filaments of polyvinyl alcohol such as those marketed under the trade names "Vinylal" or "Kuralon".
Patent GB-1099361-A (GB)
Title: Improvements in or relating to lifting apparatus
Inventor: HYDE RONALD WILLIAM
IPC: B66F7/08
Filed: 1963-05-31
Abstract: 1,099,361. Mobile platform elevators. COTTERELL & PITHER Ltd. Aug. 19, 1964 [May 31, 1963], No. 21922/63. Heading B8H. A load-supporting frame or platform 1 is supported at each side by a scissor linkage 4, 6, the levers 4 being pivoted at 5 to the platform and provided with rollers 7 and the levers 6 being slidably connected to the platform and pivoted at 10 to a wheeled cross-member 8 which supports an hydraulic ram 2 for raising and lowering the platform. The platform may have a roller surface.
Patent GB-206601-A (GB)
Title: Improvements in electrical condensers
IPC: H04R19/00
Filed: 1922-08-11
Abstract: 206,601. McLachlan, N. W. Aug. 11, 1922. Condensers.-A condenser suitable for use as a telephone transmitter or receiver comprises a sheet F of tissue-paper or the like, which is sprayed or otherwise coated with metal, and a perforated metal plate C, which is coated with insulating varnish on the side adjacent the tissue-paper. In one form, Fig. 2, the plate C is circular and the sheet of tissue-paper is secured to a ring E in contact with an unvarnished metal plate D. The parts are mounted in a ring A having a handle B through which pass the leads G connected to plates C, D. A pad of glass wool placed between the plates serves to maintain the sheet of tissue-paper in contact with the plate C without impeding its movement when influenced by sound waves or electrostatic forces. In a modification, Fig. 4, the plate C is curved, and the sheet of tissue paper is secured to rods H, J and maintained under tension and in contact with the plate C by a spring K connected to the rod J.