baber/WOPTO huggingface dataset:
Patent GB-699033-A (GB)
Title: Improvements relating to the manufacture of metal tubing and to dies therefor
Inventor: FEE DONALD JOHN
IPC: B21C37/10
Filed: 1951-02-09
Abstract: 699,033. Drawing. SIEMENS BROS. & CO., Ltd. Feb. 8, 1952 [Feb. 9, 1951], No. 3245/51. Class 83 (iv). Apparatus for making tubing by bending metal strip 8 into one or more overlapping convolutions comprises an assembly of dies 1-4 having internally tapered surfaces, adjacent dies being coupled together by means which provide flexibility of movement in one or more planes and maintain them concentric at the point of coupling. The taper of the dies is progressively smaller from the entry end to the exit end. The dies are coupled by ball and socket connections 5-7 and the assembly is supported in a socket in a plate 19. A member 14 is secured to the entry die 1 by a ball and socket joint 15 to assist the forming of the tube in the initial stages, and a roller 16 projects through an aperture in the die, to tuck in the convolution that becomes the inner convolution of the tube so that it will lie snugly against the overlapping convolution so that the tube is formed without using a solid core. The tubing may form the sheath of an electric cable, or a concentric conductor, or a screen in a high-frequency cable, the core passing through the hollow member 14.
Patent GB-932645-A (GB)
Title: Improvements in or relating to control systems for conveyors
Inventor: WHYTE BRYCE ALEXANDER CAMPBELL
IPC: B65G23/00
Filed: 1961-01-27
Abstract: 932,645. Machinery safety devices. WOODALL-DUCKHAM CONSTRUCTION CO. Ltd. April 25, 1962 [Jan. 27, 1961; June 14, 1961], Nos. 3301/61 and 21531/61. Class 80 (4). [Also in Group XXX] A safety device for a power-operated conveyer comprises a trip wire 1 (Fig. 2) connected to a trip mechanism (not shown) biased to a " drive off " position but held in a " drive on " position by the tension in the trip wire 1. Brittle rods or tubes 4 (e.g. of glass) break when subjected to increased tension or bending moments, as a result of deflection of a portion of the trip wire 1 laterally of its normal run. This disconnects the ends of a band 10 which relieves the tension in the trip wire 1 and thus causes the trip mechanism to assume the " drive off " position. In the modification shown in Fig. 3, the rods 4 are replaced by pairs of oppositely polarized magnets 13, 14.
Patent GB-984219-A (GB)
Title: A heat insulating container
IPC: B65D81/38
Filed: 1962-01-29
Abstract: 984,219. Heat insulating container. SHIHWOO LOU. Jan. 29, 1962, No. 3303/62. Heading F4U. [Also in Division B8] A thermally-insulated container comprises an open-ended outer shell 12 and an openended inner shell 21, the space between the shells defining a thermal insulating space, an annular member 15 secured in the open end of the outer shell and providing a shoulder 20 whereon flange 23 of inner shell 21 rests, the inner shell having an annular top rim 24, and a closure member 28 which slidably fits into the open end of shell 21, the closure member having a depending peripheral lip 31 engageable over the rim of the inner shell to lock therewith. As shown, the member 15 engages the outer shell 12 at its upper end 14. Member 15 has an upstanding threaded portion 16 which engages a clamping ring 27 which bears on flange 23 of inner shell 21. Portion 16 also engages a cap 35 which fits over closure member 28. The annular top rim 24 is formed with an outer groove 26 which engages lip 31 on the closure member 28. The closure member has an annular projecting rib 39 at its bottom end whereby auxillary containers may be engaged (Fig. 2, not shown). In a modification, top rim 24 may be externally threaded to receive cap 35. The space between the shells is filled with foamed polystyrene or polyurethane.
Patent GB-162777-A (GB)
Title: Improvements in and relating to electrically driven machines
IPC: A47L9/28
Filed: 1920-02-03
Abstract: 162,777. Harman, E. J., and Le Bas, E. Feb. 3, 1920. Floers, cleaning.-An electrically-driven machine of the kind in which the driving-motor is supplied by a flexible connection to a wall plug or lamp socket, is fitted with a spring or gravity operated switch 5, which, when the pivoted handle 1 is in its inoperative position shown by dotted lines, is held open by a pin 6 on the pivoted forked part 2 of the handle. The handle is held in inoperative position by a pin 7, and a spring-catch 8. When the handle is moved to the operative position, the switch 5 closes the circuit automatically.
Patent GB-968027-A (GB)
Title: Improvements in and relating to the control of electric motors
Inventor: WALLIS ALFRED STANLEY
IPC: B65H23/195
Filed: 1961-01-27
Abstract: 968,027. Control of motors. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. Dec.27, 1961 [Jan. 27, 1961], No. 3318/61. Heading H2J. The current supplied to the driving motor of apparatus for coiling or uncoiling strip material is controlled in dependence upon the acceleration or deceleration of the material and also upon the moment of inertia of the system in order to maintain constant the tension in a straight portion of the material during periods of acceleration and deceleration. As shown, a signal Va proportional to the acceleration or deceleration is applied to variable resistors M and CW which are so graded that they compensate for the inertia of the system, the output of the resistors being applied to windings W1, W2, e.g. of an amplidyne, which control the armature current of the driving motor (not shown). The resistor M produces' a signal representative of one component of the moment of inertia and the resistor CW a signal representative of another component; expressions for these components are given in the Specification. The movable contacts of the resistors M and CW are ganged together with the movable contact of a field rheostat (not shown) for simultaneous movement by the member DM which is driven to move in accordance with the change in outer diameter of the reel. A potentiometer PT1 may be provided to permit adjustment to suit various widths of the strip material being coiled.
Patent GB-695554-A (GB)
Title: Improvements in internal combustion engines
Inventor: WALKER DENIS ALAN
IPC: F02F7/00
Filed: 1950-02-09
Abstract: 695,554. Crankshafts. EXCELSIOR MOTOR CO., Ltd. Feb. 9, 1951 [Feb. 9, 1950], No. 3323/50. Class 80 (ii). [Also in Group XXVII] A crankshaft comprises detachably secured portions 28, 29 one or both of which passes endwise through a one-piece partition 13 provided with a housing 21 accommodating sealing means 40 and one or more ball or roller bearings 36. As applied to a twocylinder engine the portions 28, 29 are slidingly keyed together and secured by a nut 34 accessible by virtue of a sliding fit connection between a solid or tubular crankpin 45 and crank-web 22, the remaining crankpin to crank-web connections being force fits. The sealing means 40 are of flexible material and have internal annular coil springs pressing them against the crankshaft. Ball or roller big-end bearings are provided. The crankpins may each be interfitting pin and tubular elements each fast in a respective crank web. The outer crankshaft portions pass through housings 16, 17 containing ball bearings 46, 52 and sealing means 53', 54.
Patent GB-860897-A (GB)
Title: Improvements in curtain fittings
IPC: A47H15/04
Filed: 1958-02-03
Abstract: 860,897. Suspending curtains. JEWISON, R. H. May 1, 1959 [Feb. 3, 1958], No. 3412/58. Class 52(5). A slotted tubular curtain rail 1, of extruded nylon or polyvinyl chloride comprises a track 2 for runners 7 and a dust shield 3 and is formed coextensively and integrally with a mounting bracket 4. The combined runner 7 and hook 9 is injection moulded in one piece, and is withdrawable through the slot in the rail. In a modification the bracket is angled for mounting on a horizontal surface. Specification 860,898 is referred to.
Patent GB-936579-A (GB)
Title: Improvements in or relating to surgical and obstetrical tables or beds
IPC: A61G13/04
Filed: 1960-02-01
Abstract: 936,579. Bedsteads; operating-tables. G. C. STEEL. Jan. 31, 1961 [Feb. 1, 1960], No. 3419/60. Classes 52 (2) and 52 (3). A surgical or obstetrical bed or table has a platform 14 comprising two telescopic parts 16, 17 mounted on a base 11 to pivot about a transverse axis 19 between the ends of the platform, the axis 19 being so positioned that, in use, the head end 17 is heavier than the foot end 16 and/or means are provided to urge the head end downwardly, and hydraulic means are provided which are operable to pivot the platform around the axis 19 in the direction to raise the head end 17 and to maintain the platform in a chosen attitude, the hydraulic means being releasable to allow the head end 17 to drop and control means are also provided for the hydraulic means. The hydraulic means comprise a ram 13 having a piston-rod 21 pivotally attached at 23 to the head end 17 of the platform. Two vertical supports 12 pivotally support the platform 14 at 19. The ram 13 is pivotally mounted at 28 on a cradle 26 on a cradle 26 on the base 11. The control mechanism of the ram 13 is actuated by two pedals 30, 31. The pedal 30 operates a pump 32 whereby the hydraulic pressure is increased. A release valve 34 (Fig. 4) is provided to release the hydraulic pressure and this is operated by upward pressure on a pedal 31. Springs 33 spring load the head end 17 of the platform downwardly to assist the downward movement, The platform may be locked against pivotal movement. The foot end 16 of the platform is slidably retractable to be housed beneath the head end 17.
Patent GB-1444023-A (GB)
Title: Electric discharge lamps
IPC: H01J61/22
Filed: 1973-01-23
Abstract: 1444023 Metal-vapour lamps THORN ELECTRICAL INDUSTRIES Ltd 22 Jan 1974 [23 Jan 1973] 3469/73 Heading H1D The filling of a high-pressure metal halide electrical discharge lamp comprises mercury vapour, a rare gas, aluminium halide and at least one halide of the alkali metals lithium and sodium. Two lamps are described (Figs. 2 and 3, not shown) one of which has a double envelope. In these lamps the temperature of the discharge tube ends may be increased by zirconium coatings. Four examples of specific fillings are provided in which the preferred halide is the chloride or iodide and the preferred alkali metal is sodium. The rare gas may be argon at a pressure of 20 to 50 torr.
Patent GB-1358261-A (GB)
Title: Structural supports for concrete formwork panels
IPC: E04C3/04
Filed: 1971-02-01
Abstract: 1358261 Beams ACROW (ENGS) Ltd 10 June 1971 [16 June 1970 1 Feb 1971] 29214/70 and 3612/71 Headings E1K and E1S A structural beam for supporting concrete formwork comprises upper and lower chords 22, 24 interconnected along at least part of the beam length by a web 4, 10 or 34, 36, 38 which is of undulate form with spaced lengths 36 interconnecting the chords on one side being joined with transverse parts 38 to alternating adjacent spaced lengths 34 on the other side similarly interconnecting the chords. The parts 38 may be normal to or at an angle of 45‹ to the longitudinal direction of the beam. The upper and lower chords are either provided with apertures 40 or are each formed by two parallel spaced box section bars 2', 2" to allow wall ties or other elements to pass through the apertures 40 or between the bars 2', 2". The web may be present only in the end portions of the beam and the centre portions may be provided with staggered sinuous lattice bars 28, 30 on each side welded to channels 26 formed in the chords. The undulating web is welded to the chords and may be of varying pitch. The beam may be formed with a camber providing a slightly greater depth in the centre than at the ends to compensate for deflection under load.
Patent GB-486144-A (GB)
Title: Improvements relating to gear change mechanism for motor vehicles
IPC: B62M25/04
Filed: 1937-02-08
Abstract: 486,144. Controlling change-speed gearing. BIRMINGHAM SMALL ARMS CO., Ltd., PAGE, V., and PERKINS, H. Feb. 8, 1937, No. 3658. [Class 80 (ii)] Relates to change-speed selector-control, particularly for a motor-cycle, of the kind in which repeated strokes, in either direction, of a foot-operated lever 6 actuate oppositely acting pawls 11, producing corresponding stepwise displacements of a ratchet-toothed plate 14. In such an arrangement, the ratchetplate 14 is riveted to a toothed quadrant 15, meshing with a pinion on the change-speed selector cam-shaft 18, and having notches 19 engaged by a spring-detent 20 for locking the plate in gear and neutral positions. The ratchet-plate 14 and attached speed-selecting quadrant 15 are fast to a rock-shaft 2, on which are loosely mounted a plate 10 carrying the two pawls 11, and a sleeve 4 rigidly carrying the foot-lever 6 and a plate 7 having an axiallyprojecting lug 8 which, on initial movement of the foot-lever, presses on the tail 11a of one of the pawls, moving it into engagement with the ratchet-plate 14, whereafter continued movement of the foot-lever takes along the pawlcarrier 10 and the ratchet-plate 14 one step to effect a speed-change, the movement being limited by the plate 7 striking one of two fixed stops 9. After a change, the pawl -carrier 10 is returned to the central position, taking with it the foot-lever 6, under the influence of a torsion spring 22, the crossed legs of which engage either side of a pin 25 on the pawl-carrier 10 and a fixed peg 23 passing through a slot in the plate 7. The pawls 11 are lifted clear of the ratchetplate 14 by a coil-spring 26 between their tails 11a. Gear and neutral positions are indicated by a pointer 29, secured to the rock-shaft 2, neutral being indicated when the pointer 29 faces the projecting end of the peg 23. To adapt the mechanism for hand-control, the ratchet-plate and quadrant 14, 15 are replaced by a simple toothed quadrant having a squared boss for direct connection of a lever linked to a hand control-lever.
Patent GB-1272292-A (GB)
Title: Improvements in coin-operated amusement machines
Inventor: PECKSEN LESLIE GEORGE
IPC: G07F17/34
Filed: 1969-01-22
Abstract: 1,272,292. Coin-freed fruit machine. COIN OPERATED GAMES Ltd. 19 Jan., 1970 [22 Jan., 1969], No. 3676/69. Heading G4V. In a coin-freed " fruit machine " microswitches 22 (Fig. 1) providing a signal dependent on the final positions of the spinning drums 6 are operated by studs 11 (Fig. 2) mounted on the drums, and brought into contact with the switches only after the drums have stopped rotating. The drums 6 (Fig. 1) may be moved axially to bring the studs into engagement with the switches 22, but in the construction illustrated the switches are carried by arms 12 rooked about pivots 13 by solenoids 18 and springs 19, so that the micro-switches 22 are pushed against the studs at the same time as, or preferably just after, lugs 20 on the arms 12 engage bevelled notches in the drums to stop them. The studs 11 may be moved to different holes in the drums, to change the winning combinations, and may alternatively be carried by discs fast with the drums. The arms 12 may slide instead of pivoting, and the solenoids 18 be replaced by cams. The drums are driven through spring-applied friction clutches (see Fig. 5, not reproduced) which slip as each solenoid 18 in succession is released by a timing device to lock the associated drum 6. The studs 11 and microswitches 22 may be replaced by pairs of contact blades.
Patent GB-121407-A (GB)
Title: Improvements relating to Pump Stuffing Boxes.
Inventor: SAVERY WILLIAM EDWARD
IPC: F16J15/28
Filed: 1918-03-02
Abstract: 121,407. Savery, W. E. March 2, 1918. Boxes.-Relates in particular to the stuffing- boxes of the air and feed pumps of marine engines, and consists in means for recovering the leakage.. As shown, the stuffing-box is enclosed in a chamber c communicating with the condenser, airpump, &c., and is perforated at b for the escape of water from the packing d. To facilitate the escape of this water, grooved and perforated metal rings c are placed at intervals in the packing.
Patent GB-737326-A (GB)
Title: Improvements in or relating to conveyors for advancing goods
Inventor: ORWIN OLAF JOHN BARCLAY
IPC: B65G17/38
Filed: 1953-02-11
Abstract: 737,326. Chains. FISHER & LUDLOW, Ltd. Feb. 4, 1954 [Feb. 11, 1953; April 9 1953], Nos. 3783/53 and 9602/53. Class 24. [Also in Group XXX] In a conveyer chain built up from strip metal links 11 bent to V-form, a connecting pin 19 passed through aligned holes in the ends 12 of one link is located in the bent portion 14 of an adjacent link by a plate 16 engaging in a slot 15 in the portion 14 and having a hole 18 to receive the pin 19 or a removable liner therefor, rollers 22 being freely rotatable on the ends of the pins to engage a guide track of cruciform section (not shown). The plate 16 has two spaced grooves 17 adapted to receive the ends of the slot 15 so that the plate is held rigid in both transverse and longitudinal directions. An extension 16a of alternate plates 16 forms a load-supporting link. Each pin 19 is knurled towards one end so that it can be forced into and locked to one end 12 of the associated link. Specifications 639,244, [Group XXX], and 665,883 are referred to.
Patent GB-176997-A (GB)
Title: Pocket watch safety clip
IPC: A44C19/00
Filed: 1921-02-02
Abstract: 176,997. Berghen, J. Feb. 2, 1921. Pockets, retaining watches in.- A sheet-metal device for securing a watch in the pocket &c. comprises a disc D having pairs of spring fingers B, C for gripping the neck and body of the watch respectively, and an upper extension bent back upon itself to form a hook A. The fingers B have curled-over ends.
Patent GB-184750-A (GB)
Title: Improvements in spinning tops for games
IPC: A63H1/00
Filed: 1922-02-10
Abstract: 184,750. Whitmore, P. Feb. 10, 1922. Games of chance.-A spin. ning-top for playing games of chances comprises a disc 10, provided with markings on both surfaces and a central double. ended shank 16. The periphery of the disc is serrated and cham. fered.
Patent GB-524764-A (GB)
Title: Improvements in or relating to emergency control apparatus for power-driven vehicles
IPC: B61C17/12
Filed: 1939-02-07
Abstract: 524,764. Hydraulic transmission of power. SULZER FRERES SOC. ANON. Feb. 7, 1939, No. 3956. Convention date, Feb. 19, 1938. [Class 69 (ii)] [Also in Groups XXXI and XXXIV] The engine 1 of a vehicle drives the wheels through hydraulic gears comprising a torque converter 42 and a coupling 43. The engine speed is controlled by a regulator 11 set by means of a hand-operated valve 40 and an electro-pneumatic valve 41. The hydraulic circuits are filled and emptied by means of a pump 44 and valves 45, 49 operated by plungers 50, 48 controlled by electro-pneumatic valves 51, 52. The valves 41, 51, 52 are operated by means of a controller 7. In position 0 of the controller these three valves are all closed and the engine runs at its lowest speed. In position 1 the valves 41, 52 are opened so that (1) air is admitted to the valve 40 which may be opened by the driver to control the engine to run at any desired speed, and (2) the plunger 48 is depressed to open valve 49 and allow liquid to pass from tank 47 through pump 44 and valve 45 to the converter 42 for transmitting power to the vehicle wheels. When the controller is moved to position 2 the valve 51 is also opened, plunger 50 is depressed and valve 45 shifted to empty the torque converter and fill the coupling 43 for direct drive. When the valve 49 is open the pump 44 delivers a constant quantity of liquid through a cooler 53 to prevent overheating of the liquid. The vehicle is provided with a train brake pipe 15, and when this pipe is vented to the atmosphere for emergency braking, the reduction in pressure opens a switch 33 and breaks the circuit of the controller 7 so that the hydraulic circuits are emptied and the engine is set to run at its lowest speed.
Patent GB-1261884-A (GB)
Title: Improvements in or relating to head-up display apparatus
Inventor: ELLIS STAFFORD MALCOLM
IPC: G02B27/01
Filed: 1968-01-26
Abstract: 1,261,884. Head-up display apparatus. ELLIOTT BROS. (LONDON) Ltd. Jan;9, 1969 [Jan. 26, 1968], No.4096/68. Heading G2J. A two colour head-up display which does not suffer from the astigmatism caused by a thin inclined dichroic plate, comprises a prism B carrying dichroic films F1, F2 which transmit a green information signal provided by a C.R.T. and collimated by lenses L1, (L2), Fig. 1 (not shown) and which reflect red "standby" signals provided by illuminated synchronously moveable transparences T1, T2 and collimated by lenses L3, (L2) and L3', (L2) so that the combined signals are reflected by a "righting" mirror M to a semireflector (I), (not shown), placed in the line of sight of an observer to be viewed superimposed one above the other upon a remote scene. The image of the dividing line between the dichroic films F1 F2 is reduced by filling the space therebetween with optical cement or eliminated by cementing a cover glass over plate B. The transparencies Tl, T2 may be placed where shown dotted whereupon reflecting surfaces P3, P4 of plate B are replaced by compensating surfaces N1, N2 and may be illuminated by lamps R1, R2 or by use of optic fibres.
Patent GB-863186-A (GB)
Title: Improvements in or relating to nitrohalo polymers
IPC: C08G61/04
Filed: 1959-02-05
Abstract: Polymers of formula:-  <FORM:0863186/IV (b)/1> in which X is halogen and n an integer are prepared by reacting a 1, 2-dihalo-1-nitroethane with a basic compound.  Monomers mentioned are 1,2-difluoro-, chloro-, bromo-, and iodo-1-nitroethane; 2-bromo-1-chloro-1-nitroethane; and 1-bromo-2-iodo-1-nitroethane. Suitable bases are potassium or sodium hydroxide, barium or calcium hydroxide or carbonate, bicarbonates, organic amines, e.g. the lutidines.
Patent GB-688169-A (GB)
Title: Improvements in or relating to variable pitch propellers
IPC: B64C11/42
Filed: 1951-02-21
Abstract: 688,169. Variable pitch propellors. UNITED AIRCRAFT CORPORATION. Feb. 21, 1951. [March 14, 1950] No. 4212/51. Class 114. The blade root has a plug unit 120 inserted in it to form a fluid connection to the hydraulic vane motor mounted in the blade, and also carrying a nut 150 which bears against the hub 10 and so preloads the blade root bearings 22. The nut is locked by the lock 180 which is moved axially along the shaft by hydraulic pressure against the spring 194. The plug can be inserted at two positions 180 degrees apart to reverse the fluid connections if desired, being held against rotation after insertion by the dowel 140. Specifications 662,136, [Group XXIX] 683,729 and 683,786 are referred to.
Patent GB-928532-A (GB)
Title: Improvements in or relating to the treatment of carbon and graphite articles
Inventor: CAMPBELL JOHN GRAHAM
IPC: C04B35/52
Filed: 1959-02-06
Abstract: A pressure of at least 75 p.p.s.i. is applied to a polymerizable liquid impregnant situated against one face of a porous carbon or graphite article such that a pressure differential is set up with another face of the article not in contact with the impregnant and the article is subsequently heated to polymerize and carbonize impregnant within the pores thereof. The impregnant may be a liquid organic compound polymerizable to solid form and then carbonizable without passing through a liquid phase.  The article may be impregnated through one face if desired by application of a vacuum against an opposed face or at atmospheric pressure provided that impregnation in the opposite direction is carried out at least 75 p.p.s.i.  Specified impregnants are furfural and furfuryl alcohol which may if desired be diluted with an organic solvent, e.g. a hydrocarbon liquid or acetone.  Examples of the impregnation of tubular articles are described.