baber/WOPTO huggingface dataset:
Patent GB-568618-A (GB)
Title: Improvements in or relating to self-acting mules or twiners
IPC: D01H3/00
Filed: 1943-07-17
Abstract: 568,618. Self-acting mules. CHARLESWORTH, H. July 17, 1943, No. 11663. [Class 120 (ii)] A self-acting mule or twiner having a slowspeed clutch, a fast-speed clutch and a backing off clutch all arranged on a single shaft driven by an electric motor, from which also drive is obtained for the other motions of the mule, is characterized in that means are provided to operate each clutch independently of the others. The pulley f, loose on the shaft d and driven by ropes &c. from the electric motor e, drives a sprocket h which drives the mule carriage &c. but not the backing-off motion, which is effected through a wheel u when brought into operation by a clutch c. On the shaft d are positioned the slow-speed clutch a which drives a pulley g through the shaft d, and the fast-speed clutch b which drives a pulley b fixed to a sleeve loose on the shaft d. The levers j, t for operating the clutches a, b, respectively, are moved by cams i<1>, p on a shaft i and are interconnected so that both clutches are not operative at the same time. A projection p<1> on a rocking lever r holds the lever t in the disengaged position of the clutch b, the manipulation of which may be effected by the longitudinal " twist " rod t<6> and a cam t<5>.
Patent GB-473080-A (GB)
Title: Improvements in or relating to devices for suspending or supporting plaques, plates and similar articles
IPC: A47G1/16
Filed: 1936-04-24
Abstract: 473,080. Suspending plaques on walls. CLARKE, E. April 24, 1936, No. 11687. [Class 52 (iv)] A coiled wire spring, arranged to form a closed-sided figure, has parts D across the corners which form bearings for pivoted hooks E engaging the edges of a plate or like article to be suspended. The ends of the spring are coupled together inside a sleeve H<1> on the eyeplate H.
Patent GB-1280765-A (GB)
Title: Fluid control valve
Inventor: WALTON GEORGE WORTH
IPC: F04B53/10
Filed: 1970-03-11
Abstract: 1280765 Valves G W WALTON 11 March 1970 [2 Oct 1969] 11752/70 Heading F2V Check valve for the inlet or outlet of a piston type pump, comprises a metal seat ring 4 having a seating surface 9, and a resilient seal ring 19 e.g. of rubber or rubber-like material located in an external relief groove 18 in the seat ring. The seal ring presents a seating surface 20 which stands proud of the seating surface 9 and a closure member 7 co-operates with both seating surfaces. The inner periphery of the seal ring has an interfitting engagement with the seat ring, as by projecting bead 23 and groove 24. The seal ring is retained by a metal ring 25 fitted to a conforming groove 26 in the seat ring. As shown, there are two retaining rings of circular section. In a modification, Fig. 3 (not shown), the retaining rings are of square section with rounded corners, and the bead 23 is V-shaped. The seal ring is preferably reversible end-forend.
Patent GB-117782-A (GB)
IPC: F02D9/00
Abstract: 117,782. Baillie, J. Feb. 20, 1918. Piston valves.-A valve for the admission of extra air to the induction pipe of an internal-combustion engine from both sides consists of a perforated tube E of two diameters, fitted across the induction pipe. The tube is open at the narrower end F and is fitted with a double piston D, D' controlled by a Bowden wire A, so that air admitted at the end F and through the perforations in the wider part of the tube enters the induction pipe through the perforations in the narrower part.
Patent GB-724476-A (GB)
Title: Improvements in devices for protecting alternating current electric motors against overload
Inventor: WALTON JAMES RIGNELL
IPC: H01H71/44
Filed: 1953-04-29
Abstract: 724,476. Dashpots. ELECTRICAL APPARATUS CO., Ltd. April 29, 1953, No. 11785/53. Class 108 (3). [Also in Group XXXVII] In an overload release having an electromagnet 18 and a liquid dashpot 1, a valve 3 is closed by magnetic force only on heavy overloads so as to prevent tripping on heavy overloads of short duration (e.g. as when starting a motor) without preventing tripping on sustained moderate overloads ; and the apparatus is provided with a liquid-tight chamber 14 to retain the liquid in the event of tilting or overturning. The armature or plunger 10 of the release is fixed to a piston rod 6 having a collar 38 and a screwed stem 39 on which the valve 3 is screwed and soldered. A crimped washer 7 and the dashpot piston 2 are located between the collar 38 and the valve 3, with a spring 4 between the valve and the piston. Under moderate overload conditions, the spring 4 is strong enough to maintain the valve open as the piston and valve assembly are pulled up by the plunger 10 against the bias of a spring 9, so that liquid can flow from above the piston 2 through the flutes of the washer 7 and past the open valve 3 to the lower part of the dashpot. Under heavy overloads, the bias of the spring 4 is overcome and the valve 3 is pulled into engagement with the piston and closed so that a long delay is provided by the dashpot. The release is made light tight by the provision of the chamber 14 into which extends the guide tube 15 for the plunger 10, so that if the apparatus is inverted, liquid does not escape by means of the tube 15. A further safeguard is provided by a washer 8 which is maintained against the open end of the tube 15 by the spring 9. A felt or rubber ring 13 prevents the escape of liquid along the screwed joint between the dashpot 1 and casting 42. When the plunger 10 is raised, it lifts a tappet 17 to turn a trip bar 19.
Patent GB-635536-A (GB)
Title: Improvements in or relating to fans
IPC: F04D29/34
Filed: 1948-04-30
Abstract: 635,536. Screw fans. GENERAL ELECTRIC CO., Ltd., and CRANSTON, W. M. April 30, 1948, No. 11890. [Class 110(i)] A channel member 3 is attached, as by welding, to one face of a fan blade 1, and a blade support or spar 7 is clamped within the channel member 3 and attached at its free end, as by a bolt 8, to a driving member or boss 2. A liner 6 of rubber or like material is sandwiched between the spar and the channel member. The edges of the channel member are pressed or rolled over to grip the spar and the end 10 of the spar is. turned up to engage tags 12 on the channel member. Locating pips 9 on the spar engage recesses on the driving member.
Patent GB-623611-A (GB)
Title: Improvements in or relating to refrigerating apparatus
IPC: F25B39/02
Filed: 1947-05-05
Abstract: 623.611. Refrigerating. WESTINGHOUSE ELECTRIC INTERNATIONAL CO. May 5, 1947, No. 12069. Convention date, May 10, 1946. [Class 29] A refrigerant evaporator comprises a bottom wall 12 and two side walls 19, 20 forming a cooling chamber and having passages thereon for the refrigerant, said passages including an inlet manifold 15 extending across at least part of the bottom wall, a group of passages 18 joining manifold 15 to a collecting manifold 22 adjacent the top of wall 20, connecting passages 24 of small cross section joining manifold 22 to a manifold 26 on the bottom wall near manifold 15, a group of passages 28 joining manifold 26 to a discharge manifold 32 on the side wall 19, and a header 34 connected to manifold 32 and a suction conduit 36. The walls 19, 20, 12 consist of two embossed sheets joined together to form the passages. A back wall 40 and a top wall 42 have brazed thereto a sinuous coil 44 supplied with refrigerant at 48 and communicating with the manifold 15 at the other end 46. The passages 28 are also joined by manifolds 38 on the bottom wall.
Patent GB-126542-A (GB)
Title: Improvements in Clips or Couplings for Pipes, Rods and the like.
Inventor: NEAL GEORGE FREDERICK
IPC: F16L33/04
Filed: 1918-07-25
Abstract: 126,542. Neal, G. F. July 25, 1918. Clips, band.-A coupling for pipes &c. comprises a metal band c which is passed round the pipe, the ends being passed over a flanged strip e, and tightened by a screw g. The flanges of the strip e are then bent over the band as shown to the right of Fig. 2, the screw g is removed, and the ends of the band turned back as shown in Fig. 3.
Patent GB-874063-A (GB)
Title: Improvements in tubulous vapour generators
IPC: F22B37/68
Filed: 1960-04-06
Abstract: 874,063. Tube walls for furnaces. BABCOCK & WILCOX Ltd. (Soc. Francaise des Constructions Babcock & Wilcox). April 6, 1960, No. 12171/60. Class 51 (1). Vertical tubes 2 supporting a pressure-tight casing 7 and tubes 8 arranged around the walls of a vapour generator are fed with working fluid so that they are maintained at a predetermined temperature. Tie-bars 4 connecting the tubes 2 are maintained at the same temperature by loops 5<SP>1</SP> of tubes 5 connected to the bearer tubes 2. The tubes 8 are arranged in horizontal bands, each extending half-way round the furnace and being connected to the next band by vertical tube parts, Figs. 4 and 5. The tubes 8 have expansion bands 9 at the corners of the furnace, and are suspended from bars connected to the bearer tubes 2 so that they can move horizontally. The bands of tubes 8 are spaced apart slightly, and bands at different levels in the furnace are heated to different temperatures. Since the bearer tubes 2 and the bars 4 are maintained at a constant temperature during operation, the differential thermal expansion is accommodated by the expansion bends 9 and the vertical tube sections between bands.
Patent GB-592551-A (GB)
Title: Improvements in a process of and means for continuously purifying and concentrating acid pickle liquors for the treatment of iron and steel
IPC: C01G49/00
Filed: 1945-05-15
Abstract: In the continuous purification and concentration of spent hot sulphuric acid iron pickling liquors with the removal of copperas therefrom and the addition of fresh sulphuric acid thereto, the spent liquors are subjected to a first stage of cooling in open-topped tubes 1 to crystallise and precipitate copperas, and then to a second stage of cooling in a barometric tube 3 to further crystallise and precipitate copperas therefrom, the water vapour evaporated in vacuum head 9, in the second stage, being absorbed by concentrated sulphuric acid sprayed into condensing column 10 disposed between the vacuum head 9 and conduit 10a, and returned via container 38 and tube 39 to the spent liquors entering said first stage, the liquor purified and concentrated in the second stage being caused to flow successively through heat interchange jackets surrounding tube 3 and tubes 1 in a direction counter to that of the spent pickling liquor, to be finally discharged by siphon 28 into tank 12, and the copperas crystallised and <PICT:0592551/III/1> precipitated from said liquors being continuously or intermittently collected and removed therefrom.  The spent liquors are agitated during the first coating stage by means of stirring mechanism 5a.  The passages between the open-topped and barometric tubes and their respective jackets are forced to provide a helical passage for the liquor around said tubes.  Axial heat flow may be prevented by employing tubes 1 and 3 formed as a series of metal rings separated by rings of adherent insulating and acid resistant material, e.g., rubber, ebonite or vulcanite, formed of helical metal strips the interstices of which are filled with the adhering insulating material, or formed with transverse slits which are in staggered relationship vertically and filled with the insulating material.  The walls of the jackets enclosing the tubes may be lined internally with rubber or ebonite and lagged eternally. In a modification, the rate of flow of the regenerated liquor into tank 12 is automatically adjusted by a float, rigidly attached to a siphon vessel and counterbalanced by a system of pulleys and weights, which moves up and down with the liquor level in tubes 1, moving with it the siphon vessel and adjusting the head of liquor in the siphon pipe 28 and the rate of discharge from the siphon vessel into tank 12 according to atmospheric pressure variations.
Patent GB-220055-A (GB)
Title: Improvements in and relating to wristlets for watches, ornaments, and other articlesworn on the wrist
IPC: A44C5/22
Filed: 1923-05-07
Abstract: 220,055. Betts, S. May 7, 1923. Watches, securing to wrist.-One end 2, Fig. 7, of a wristlet strap is detachably secured to one of the loops 7 of a watch by passing a loop formed on the end 2 partly through the loop 7 and engaging it at the sides by hook projections 5, 6, Fig 8, on a slide device 4 running in the looped end. Other forms of the slide are illustrated in Figs. 2 and 4. When the wristlet is pulled tight for fastening, the slide 4 runs up to the loop 7 of the watch and the main fastening 9 is engaged with the wristlet or with a counterpart fastener on a fixed or slide device on the wristlet. The main fastening 9 may be detachably secured to the wristlet in a similar manner so that wristlets of various colours may be worn with the watch.
Patent GB-617619-A (GB)
Title: Improvements in motion picture film apparatus
IPC: G03D13/00
Filed: 1946-04-23
Abstract: 617,619. Kinematograph sprockets ; photographic processing apparatus. KODAK, Ltd. April 23, 1946, No. 12308. Convention date, April 20, 1945. [Classes 97 (i) and 98 (ii)] Each tooth of at least one row of teeth of a kinematograph film sprocket comprises at least two relatively displaceable parts so as to be of variable size. The two portions of each tooth are urged apart by spring means and means is provided for limiting the relative movements of the tooth parts. Preferably the teeth are split circumferentially of the sprocket and all of each set of part-teeth are integrally formed. The teeth may be urged apart either circumferentially or radially of the sprocket so that they fill the perforations of a film strip longitudinally or laterally. As shown in Fig. 10 the sprocket comprises one row of fixed size teeth 142 and a second row of teeth 143 laterally extensible by a spring 185, the tooth portions 147 being carried by the body of the sprocket which is pinned to the shaft 145, whilst the tooth portion 150 is carried by a disc 151 attached to a sleeve 195 splined for axial movement along the shaft, which movement is limited by a fixed stop 197. Fig. 5 shows a sprocket in which both rows of teeth 26, 27 are split so as to be variable in size. A central body portion 29 carries fixed teeth portions 28, 34, leaf-springs 37 which engage studs 42 on two discs 33, 36 rotatable relatively to the body 29, and leaf-springs 50 which engage the disc 33 so that the portions 32 of the larger teeth 26 are displaceable longitudinally and laterally while the portions 35 of the smaller teeth 27 are displaceable only longitudinally to engage the edges of the film strip perforations. To limit the movements of the teeth parts, an endless stainless steel band 55 having perforations equal in size to the largest which will be encountered on the film strip surrounds the sprocket teeth. A sprocket of the kind shown in Fig.. 5 is applied to the registering sprocket 19 of a film stripping apparatus of the kind described and claimed in Specification 582,439 with the additional feature that the " roll down " rollers 85, 86 are supplemented by a rubber-covered socket roller 65 which cooperates with the teeth of the registering sprocket 19 and between which roller and the sprocket the registered strips are " rolled down," i.e. pressed together. The strips are held under tension to maintain registration by driving only the sprocket 23 while the sprocket 19, rotated only by the passage of the films 11, 12 has a frictional belt and drum brake 80, 81. Specifications 574,137, 574,138, 582,436 and 617,618 are referred to.
Patent GB-965187-A (GB)
Title: Improvements in and relating to electric motor brakes
Inventor: VICKERS ROY GILBERT
IPC: H02K7/102
Filed: 1962-03-30
Abstract: 965,187. Electromagnetic disc brakes. BREVETS AERO-MECANIQUES S.A. Jan. 25, 1963 [March 30, 1962], No. 12338/62. Heading F2E. In a disc brake assembly for an electric motor 1 comprising a fixed back plate 3, a disc 14 secured to an extension shaft 15 rotating with the motor shaft 16, a non-rotatable pressure plate 9, carried by a sleeve 10, for clamping the disc 14 against the back plate and which is acted on by a compression spring 12 to normally apply the brake, and a number of electromagnets 7 secured to a non-rotatable plate 5, axially slidable on the sleeve 10, and which when energized simultaneously with energization of the motor attract armatures 8 to release the brake, the plate 5 provides an anchorage for the spring 12 and is retained by a circlip 6 against a shoulder on the interior of a housing sleeve 4, which is rotatable and has a screwthreaded connection with the back plate, whereby on rotation of sleeve 4 plate 5 is moved axially to simultaneously adjust the magnet gap and the spring compression. The back plate is secured by radial cone-tipped screws (not shown) to the heads of studs 2 screwed in the motor end plate, while rotation of the plates 5 and 9 is prevented by pins 11. The sleeve 4 is locked in its adjusted position by a key 19 carried by a plate spring 20 secured to the sleeve and to which is secured a lever 22, the key normally engaging a groove in the back plate but being lifted to free the sleeve for rotation upon manually depressing the lever 22. Mechanical release of the brake is effected by depressing a plunger 23 to which is secured a yoke formed with wedges 24 co-operating with rollers 25 carried by a collar 27 secured to the sleeve 10. Cooling.-A fan 17 secured to the shaft extension 15 effects cooling of the brake.
Patent GB-611201-A (GB)
Title: Improved trolley or carrier
IPC: B62B1/12
Filed: 1946-04-25
Abstract: 611,201. Hinges. VIVIAN, G. M. April 25, 1946, No. 12492. [Class 65 (ii)] [Also in Group XXXII] A handle E is attached to the top transverse bar A<2> of a trolley by a clamp joint comprising two flanged half shells D<1> riveted together at D 5, and having lugs D<4> perforated to receive the screwed end of the handle which, upon rotation draws the lugs together between a flange on the handle and a nut E<2> to grip a serrated or knurled sleeve D fixed to the bar A2.
Patent GB-170879-A (GB)
Title: Improvements in or relating to driving belts
IPC: F16G1/02
Filed: 1920-05-06
Abstract: 170,879. Guillou, H. May 6, 1920. Belts.-A driving- belt is formed from an outer continuous tanned leather layer a reaisting stretching and an adhesive chrome leather inner layer formed as a series of separated longitudinal strips d, each of which may be built up of overlapping strips secured together end to end. Grooves a' are formed in the layer a to enlarge the spaces b in the lower layer to facilitate escape of air. Rivets c securing the layers together are countersunk to form recesses c' on the driving- face of the belt to act as suckers to increase adhesion.
Patent GB-963433-A (GB)
Title: Process for the restoration of photoconductive sheet
IPC: G03G5/06
Filed: 1961-04-07
Abstract: 963,433. Electrophotographic processes. MINNESOTA MINING & MANUFACTURING CO. April 7, 1961 [April 18, 1960], No. 12591/61. Heading G2H. [Also in Division H1] A photoconductive sheet having a latent image thereon is restored to its original "dark" state ready for re-use by contacting it with water at at least 100‹F. and subsequently cooling it to ambient temperature. The plate may consist of an aluminium carrier to which is bonded a mixture consisting of 252 gms of zinc oxide (particle size less than 40), 139 gms of methylisobutyl ketone and 210 gms of binder consisting of a toluene solution of butadiene and styrene copolymer. Sensitizing dyes may be added as 0. 5% methanol solutions. A paper or plastic backing may be used. Reproductions may be produced by electrolytic decomposition on the surface of the zinc oxide sheet such as by using "Alcian Blue 8 CN" (Registered Trade Mark). Restoration is effected by washing with water at 140‹F. for 20 seconds and then drying the plates. A blue-green image was obtained by then exposing the plate to a photographic image and depositing titanium dioxide on the exposed area using a suspension of titanium dioxide in an aqueous solution of the thiuronium salt prepared by reacting NTetra-decyl-p-chloromethylbenzene -sulphonamimide and N, N, N<SP>1</SP>N<SP>1</SP>-tetra methyl thiourea.
Patent GB-781164-A (GB)
Title: A circuit for simulating a variable resistor by means of a variable reactor
IPC: H03H7/24
Filed: 1953-05-06
Abstract: 781,164. Impedance measurements. ROGERS, F. E. Aug. 6, 1954 [May 6, 1963], No. 12677/53. Class 37. A capacitive (or inductive) potential divider C1 C2 with tapping connected to the grid of a valve is used to vary the impedance appearing across the terminals 1, 2 in the cathode circuit of the valve. If  is the fraction of the voltage from terminal 1 applied between the cathode and grid, and the grid resistance Rg is large, the impedance is purely resistive and given by where ra is the impedance of the valve. The shunt reactance of the potentiometer itself may be arranged to be constant by suitable design of C1, C2 (or of the inductors). An unknown impedance Zx at radio frequency may be measured by alternately connecting it and the cathode output circuit across a parallel tuned circuit L1, C3, having a fixed frequency energizing source E and a parallel connected valve voltmeter V. The reactance of Zx is balanced out and measured, when Zx is connected, by varying the capacitor C3, also when the valve cathode circuit is substituted, C3 is adjusted back to resonance, and the potentiometer C1, C2 adjusted till the valve voltmeter gives the same reading as previously, whereupon the resistive component of Zx corresponds with the calibration of the potentiometer.
Patent GB-794185-A (GB)
Title: Improved liquid agitator or impeller arrangements
IPC: B01F15/00
Filed: 1954-05-03
Abstract: 794,185. Stirrers for mixing. JONES, H..D. May 2, 1955 [May 3, 1954; April 7, 1955], Nos. 12743/54 and 10186/55. Class 86 [Also in Group XXVI] In a rotary or oscillatory agitator or impeller arrahgement comprising a shaft having a lateral extension B, the shaft is sealed where it passes through the liquid chamber wall A by a torsionally resilient sleeve C that is closed at one end, fits loosely over the shaft and extension and is secured at its open end to the wall A. In a modification, Figs. 2 and 3 (not shown), the extension is circular and the part of the sleeve surrounding the extension has discs secured thereto to act as paddles.
Patent GB-346584-A (GB)
Title: Improvements in or relating to invalids' bedsteads
IPC: A61G7/015
Filed: 1930-04-25
Abstract: 346,584. Invalids' bedsteads. WHITFIELDS BEDSTEADS, Ltd. and WHITE, C. V., 109, Watery Lane, Bordesley, Birmingham. April 25, 1930, No. 12752. [Class 52 (ii).] In a bedstead having angularly adjustable head, thigh, and foot sections 2, 3, 4 actuated by linkage coupled to controlling screws 11, 28, the thigh and foot sections are simultaneously controlled by one screw through a parallelogrammic linkage 22 pivoted to the bedstead frame. The said linkage is connected to the moving sections by struts 19, 31, the strut on the foot section being notched and adjustable on a cross bar 24 to vary the relative inclination of the foot and thigh sections, a spring-controlled lever 38 being provided to disengage the notched strut when making such adjustment. A foot-rest 34 can be fitted into any of a plurality of pairs of holes in the frame of the foot section.