baber/WOPTO huggingface dataset:
Patent GB-1177686-A (GB)
Title: Improvements in or relating to Servo Devices.
IPC: B60T13/57
Filed: 1967-03-31
Abstract: 1,177,686. Brake servos. ROBERT BOSCH G.m.b.H. 31 March, 1967 [1 April, 1966], No. 14703/67. Heading F2F. A servo device, e.g. a brake servo, comprises a force, member 3, Fig. 1. a follower valve 14 actuable by displacement of a control member 11, the force member, the control member and a force-transmitting member 19 each having surface portions mutually inclined to each other which define a space which can be varied by mutual displacement of the surfaces and at least one intermediate element 23 engaging all three surfaces and arranged to slide in the space so that the control member and the force member both act on the force-transmitting member. In the idle position the spring 26 loads control member 11 with its seating 12 engaging valve member 14 so that chamber 32, which is subjected to vacuum via connection 16, is connected to chamber 31 through passage 15, the valve chamber 33 and passage 24. The equalized pressure on both sides of plunger 3 causes the latter to be spring-loaded against cover 2. When brake lever 9 is depressed, the rod 10 displaces control member 11 to the left so that the connection between chambers 31, 32 is broken when valve member 14 engages shoulder 7. Further depression of brake lever 9 causes the control member 11 to lift away from valve member 14 so that atmospheric air flows via chamber 5, valve member 14 and passage 24 into chamber 31. The resulting pressure difference causes the plunger 3 to exert force on piston-rod 19, attached to a main cylinder, through balls 23. The movements of the control member 11 and plunger 3 act through tapered surfaces 22, 17 on surface 21<SP>1</SP> until a balanced position is achieved in which valve member 14 again rests with a tight seal on control member 11 and shoulder 7 to prevent further pressure rise in chamber 31. If the control force on rod 10 is removed or reduced control member 11 moves valve member 14 away from shoulder 7 so that the pressure in chamber 31 is exhausted via connections 24, 15 and chamber 32 to the vacuum source, plunger 3 moving towards its idle position. The ratio of the control and servo forces may be altered either by varying the angles of the tapered surfaces or by use of a curved surface. The tapered surfaces may be grooved to restrict the balls to radial movement. The balls 23 may be replaced by double wedges, a flexible ring of circular or triangular cross-section or a spring.
Patent GB-343399-A (GB)
Title: Improvements in current motors
IPC: F03D3/06
Filed: 1930-05-13
Abstract: 343,399. Current motors. ENERGY RESEARCH CO., 21, Dover Green, Dover, Delaware, U.S.A. May 13, 1930, No. 14706. Convention date, May 14, 1929. [Class 110 (iii).] In a current motor for use in wind or water the vanes have central portions concentric with the hollow shaft a and tail portions d<1>, d2 which are not concentric. Additional t a i l vanes g<1>, g2 which are hinged at h may also b e provided and their feathering may be controlled by pivoted weights. Air &c. exit holes f are arranged in the endplates, and the hollow rotary shaft a is suspended on a central shaft c.
Patent GB-380764-A (GB)
Title: Apparatus for treating gases with liquids for the removal of dust and smoke
IPC: B01D46/12
Filed: 1932-05-24
Abstract: 380,764. Treating gases with liquids. LAURENT, E., 2, Rue AbbÚ Lemire, La Madeleine-Lez-Lille, France. May 24, 1932, No. 14708. Convention date, May 28, 1931. [Claas 55 (ii).] In washing dust or smoke from gases, or separating two gases by solution, the gases are passed through an expansion chamber 2 containing obstacles such as hanging chains 3 for the separation of coarse dust, and then through a chamber 6 containing parallel discs 8 of wire gauze rotated with their lower halves in a liquid so that the upper halves carry liquid films through which the gases are drawn axially by a fan. The gases pass finally through a chamber with louvres 17 to separate liquid particles. Each disc comprises a pair of closely spaced parallel grids or perforated plates and is cleaned by fixed or rotary brushes 16. Adjacent discs are rotated in opposite directions, and the top edge of each projects into a gutter 15 forming with liquid on the disc a hydraulic joint.
Patent GB-496233-A (GB)
Title: Manufacture of shaped products from polyvinyl chloride
IPC: C08K5/156
Filed: 1937-05-27
Abstract: Shaped articles such as threads, films, ribbons, plates, tubes and rods are prepared from compositions containing a polyvinyl chloride of high molecular weight and a cyclic acetal derived from formaldehyde and a dihydric alcohol, the acetal being removed before the final preparations of the product.  Suitable acetates include those prepared from ethylene glycol, 1 : 2-propylene glycol or 1 : 3-butylene glycol and formaldehyde.  In examples polyvinyl chloride is mixed with (1) the acetal derived from ethylene glycol and formaldehyde with or without the addition of methylene chloride, and the solution after filtration and de-aeration is worked into films or, by dry spinning, into threads; (2) the acetal derived from 1 : 2-propylene glycol and formaldehyde and with dichlorodiphenyl and the product worked up into a shaped product.
Patent GB-714539-A (GB)
Title: Shuttle valve
IPC: F15B13/02
Filed: 1952-06-11
Abstract: 714,539. Fluid-actuated valves. ELECTROL, Inc. June 11, 1952 [June 12, 1951], No. 14761/52. Class 135 A shuttle valve particularly adapted to connect a fluid system alternatively to two different sources of fluid pressure, e.g. liquid and gaseous, comprises a casing 10 with an elongated valve chamber or bore 11 communicating with a central port 13, ported coupling members 18, 19 with tubular sleeves 22, 23 extending into the ends of the bore 11, and a valve member 25 with cup-shaped sleeve portions 27, 28 always in telescopic sliding engagement with the outside of the sleeves 22, 23, each sleeve portion 27, 28 having one or more passages 29, 30 adapted to be covered and uncovered by axial movement of the valve member. The passages 29 are covered before the passages 30 are uncovered and vice-versa. The ends of the sleeves 22, 23 are adapted to engage rubbery sealing rings 35, 36 mounted in recesses inside the sleeve-portions 27, 28 and held in place by headed pins or plugs 37, 38. The valve member is releasably held in either of its end positions by a detent comprising a spring-loaded ball 42 engaging one side or the other of a double conical ramp 41 on the valve stem 26. The ball 42 and its spring 43 are housed in a threaded plug 45. If the pressure at one of the ports 21 or 24 decreases substantially, the pressure at the other port will move the valve member to cut off the one port and connect the other to the central port 13. U.S.A. Specifications 2,445,505 and 2,569,967 are referred to.
Patent GB-991268-A (GB)
Title: Windscreen wiper operating circuits for road vehicles
Inventor: HOLLYOAK JOHN DAVID
IPC: B60S1/08
Filed: 1963-04-04
Abstract: 991,268. Control of D.C. motors. JOSEPH LUCAS (INDUSTRIES) Ltd. March 18, 1964 [April 16, 1963], No. 14779/63. Heading H2J. A motor 4 driving a windscreen wiper is prepared for stopping by engaging contacts 5, 7, the motor circuit being maintained through contacts 8, 9. The contact 8 is driven by the motor, and, when this contact moves beyond the end of the arcuate contact 9, it engages a contact-piece 10 to short-circuit the motor armature. The motor is thus brought to rest when the wipers are in their parking position.
Patent GB-817102-A (GB)
Title: Improvements in or relating to variable pitch propellers for aircraft
Inventor: LOMBARD ADRIAN ALBERT
IPC: B64C11/34
Filed: 1956-05-11
Abstract: 817,102. Variable pitch propellers. ROLLSROYCE Ltd. May 10, 1957 [May 11, 1956], No. 14806/56. Class 114. In a variable pitch propeller drive, a sunwheel 11 on the engine shaft drives planet pinions 12 on a carrier 14 secured to the propeller, the planet pinions 14 running in a ring gear 13 having limited angular freedom under control of an hydraulic torque meter 17, reversal torque causing clockwise rotation of the ring gear 13 until a lug 72 thereon engages the short arm of a lever 73. A double linkage 74, 75 connects the outer end of the lever 73 to a pivoted arm 77 whose outer end engages beneath a collar on the valve 36 of a speed governor 21 to raise the valve and open the flow of pressure fluid from a pump 23 through passages 40, 40a to pitch change motor 32 to feather the propeller blades 10f. Between the speed governor valve 36 and the pitch change motor 32 is disposed a feathering valve 51 controlled manually by a lever 60 adapted when set in the feathering position to close electrical contacts 61a and energise a motor 28a coupled to a pump 28 which supplies or accelerates the actuating fluid according to whether the pump 23 is functioning or not. A link 76 connects the joint between the links 74, 75 to the throttle lever 46 which in the idling position straightens out the linkage 74, 75 depressing the pivoted arm 77 and rendering the torque sensing device inoperative. The throttle lever operates through the tension spring 44 of the speed governor by adjusting its tension. In a modification, the lever 77 actuates the feathering valve directly.
Patent GB-481839-A (GB)
Title: A new and improved crate or box
IPC: B65D25/10
Filed: 1937-05-28
Abstract: 481,839. Bottle crates &c. BRETT. J. H. M., and RANSOM, R. May :28, 1937, No. 14837. [Class 18] A crate or box for bottles &c. is fitted with means for holding the contents in place consisting of resilient buffers of spring steel, rubber &c. shaped as shown in Fig. 4 and affixed as indicated in Fig. 2. Specification 479,726 is referred to.
Patent GB-789682-A (GB)
Title: Improvements in or relating to rotary blowers and exhausters
IPC: F04D23/00
Filed: 1955-05-23
Abstract: 789,682. Centrifugal blowers and exhausters. PARSONS, B. May 8, 1956 [May 23, 1955], No. 14842/55. Class 110 (1). In a rotary blower or exhauster for conveying or lifting solid materials, the casing is provided with a central inlet and a peripheral inlet through either of which the intake of solid material can take place, and with a passage wherein solid material entering by either inlet is exposed to the full discharge of air from the impeller to be ejected thereby through a delivery shoot. A blower for conveying solid materials, such as grain, manure and sawdust, comprises a peripheral inlet e in addition to the usual central inlet (not shown). Air is drawn in through the central inlet and the solid material can be fed into either inlet by, it may be, a worm conveyer. A curved baffle i prevents material in the delivery shoot h from falling back into the impeller b. Material entering through the inlet e is kept from contact with the impeller b by an adjustably pivoted curved baffle f, or louvres, or both. Any accumulation of material in the inlet e may be broken up by admitting compressed air at l by way of a pipe j connected to the blower casing at a point k near the delivery shoot h.
Patent GB-501580-A (GB)
Title: Four-wheeled bogie for high-speed vehicles, particularly railway vehicles
IPC: B61F3/16
Filed: 1937-05-28
Abstract: 501,580. Railway - vehicle bogies. OSTER, L. E. W. MONTROSE-. May 28, 1937, No. 14922. [Class 103 (vi)] In a four-wheel bogie for railway or like high-speed vehicles, in order to avoid sinusoidal running and to decrease the imspring weight, light independently supported wheels are provided, while, in order to reduce jolts transmitted to the body, the bogie structure is built up of seriesconnected systems of equalizing levers as traced from each wheel to the centre pin, the members of some of such systems comprising elements arranged in parallel. In the construction shown, each of the four wheels 3, Fig. 6, has a hollow hub 2 to receive a stub axle 5 formed on a carrier 5<1>, which is suspended from the side frame members 11 by means of three parallel ball-jointed links 9, Fig. 3, the lower two of which are preferably sprung by helical springs 13 bearing against brackets 14. Each wheel-carrier is further guided by a longitudinal pivoted link 10, Fig. 2. The two side-frames comprise longitudinals 11, 16 arranged in parallel and pivot as equalizing levers about a transverse tubular member 17, on the outer ends of which also oscillate brackets 19 forming bearings for two transverse leaf-springs 22. Universally mounted with respect to the shaft 17 by means of a U-shaped rubber cushion and also supported by the springs 22 is a casting 23 fitted with bearings 24, 25 for the bogie-pin socket 26. Thus, owing to the longitudinal and transverse lever systems formed by the side frames and springs 22, any jolt communicated from one wheel to the side frame is transmitted in a reduced ratio to the centre-pin, while the springs .13, where such are provided, may absorb small shocks without transmitting any part thereof. In a modification, Fig. 10 (not shown), the bogie is motor driven, and the helical springs associated with the links 9 are inclined to the vertical.
Patent GB-181945-A (GB)
Title: Improvements in padlocks for bracelets and the like
IPC: A44C5/20
Filed: 1921-05-31
Abstract: 181,945. Duley, A. E., and Smith, W. H. May 31, 1921. No Patent granted (Sealing fee not paid). Jewellery padlocks. - The pivoted part 3 of the bow 2 of a jewellery padlock is provided with an operating-lever 5 which extends across the inside of the padlock case and projects through a slot at the side thereof. A spring 7 presses the lever to a closed position.
Patent GB-431290-A (GB)
Title: Improvements in and relating to indicating and/or measuring instruments
IPC: G01L19/08
Filed: 1934-05-18
Abstract: 431,290. Indicating-apparatus. NEW, C. E., 20, Bucklersbury, Wallbrook, and ROSE, S. A. M., 111, Gray's Inn Road, both in London. May 18, 1934, No. 15042. [Class 106 (iv)] The indicating-marks 1a on the dial of an instrument are composed of spring clips which are adjustably positioned on a bar 2. Alternatively, the clips may be arranged in a slot and may be secured in position by locking screws. According to the provisional Specification the members forming the marks may be attached to the dial plate by magnetic means. The invention is applied to pressure indicating and measuring instruments of the Bourdon tube, diaphragm and bellows types and to temperature measuring instruments of the bi-metallic type.
Patent GB-592754-A (GB)
Title: Well drilling fluid
IPC: C09K8/035
Filed: 1944-08-08
Abstract: A drilling fluid for wells comprises an aqueous liquid, a finely divided solid dispersed in said liquid, and a mineral or vegetable oil emulsified in said liquid.  The fluid may comprise a suspension of clay and/or bentonite in water, salts such as pyrophosphates, tetraphosphates or metaphosphates or basic solutions of tannins, lignins, ulmins &c. to control the viscosity of the fluid, weighting materials such as calcium carbonate, barytes, galena or iron oxide, and a mineral or vegetable oil with an emulsifying agent.  Flake mica, asbestos &c. may also be added. The oil may comprise crude oil, gas oil, stove oil, diesel oil &c. and the emulsifying agent may comprise alkyl or aryl sulphonates, sulphated oils, fatty acids, glyceryls and alcohols, fatty acid soaps and their derivatives, tall oil, pine oil &c. and their soaps, sulphite liquor, rosin acid derivatives, naphthenic acid soaps, alkaline silicate and metasilicate compounds, polyphosphates, sea moss or weed extracts, or quebracho, agar, divi-divi, gum tragacanth &c. with caustic or basic-reacting agents, or mixtures thereof.  Proportions are given.
Patent GB-550466-A (GB)
Title: Improvements in braces, suspenders and similar articles
IPC: A41F11/16
Filed: 1941-11-24
Abstract: 550,466. Braces and sock-suspenders. EATON F., and EARLAM, W. Nov. 24, 1941, Nos. 15089/41 and 2015/42. [Class 141] The shoulder straps A, Fig. 1, of a pair of braces and the leg-encircling band F, Fig. 11, of a sock-suspender are made from strips of multi-ply woven fabric the edges of which are bound or piped, as shown at a, f, to prevent fraying. In the cases of braces, the ends of the straps are turned up, and sewn to the main straps at intervals to form loops a<SP>2</SP> through which the tab ends D are passed; alternatively, or additionally, separate strips may be similarly sewn to the ends of the straps. The tab ends may be formed of woven fabric piped at its edges, or of flattened braided material. The sock suspender comprises long and short straps f<SP>1</SP>, f and a depending tab G, and is fastened round the leg by the engagement of a hook f<SP>4</SP> or a stud with one or other of eyelets f<SP>3</SP> or buttonholes. Masking strips of material cover the fastening elements.
Patent GB-738794-A (GB)
Title: Improvements in or relating to resilient tile and method of making the same
IPC: C04B26/12
Filed: 1953-06-01
Abstract: A resilient tile composition comprises by weight 70 to 80 per cent filler of which 30 to 55 per cent is finely-divided non-fibrous inorganic filler and 25 to 50 per cent is fibrous filler, and 30 to 20 per cent binder of which 15 to 23 per cent is a rosin-modified phenol-formaldehyde resin and 4 to 9 per cent is plasticizer.  The resins used may be obtained, e.g. by reacting phenol, cresol or bis-phenol, formaldehyde and rosin with subsequent esterification with a polyhydric alcohol, e.g. glycol, glycerol or pentaerythritol in the presence or absence of dicarboxylic acids or anhydrides such as maleic anhydride. Mixtures of resins may also be used, e.g. a mixture obtained by reacting rosin, phenol and formaldehyde and esterifying with glycerine in the presence of maleic anhydride and a rosin-modified phenolic resin obtained by reacting rosin, phenol and formaldehyde and esterifying with a mixture of glycol and glycerol. Specified ingredients: plasticizers-butyl benzyl phthalate, mixed ortho- and paratoluene sulphonamides and phthalyl glycollates; fillers-ground limestone, serpentine, talc, asbestos; pigments-titania, carbon black, iron oxide, ochre.  An example is given.  In making the tiles, the filler and binder are mixed at a temperature below 315 DEG  F. and the resulting mixture is formed into a blanket by milling with the cold roll at 175 DEG  to 185 DEG F. and the hot roll at 325 DEG  to 340 DEG  F.; the blanket is then passed through a calender, the face roll of which is at 105 DEG  to 115 DEG  F. and the back roll at 85 DEG  to 95 DEG  F., and the resulting sheet is cut into tiles.  In a modification the calendered sheet is passed through a second calender the face roll of which is at 100 DEG  to 110 DEG  F. and the back roll at 80 DEG  to 90 DEG  F.
Patent GB-170551-A (GB)
Title: Improvements in or relating to heel-affixing machines
IPC: A43D5/02
Filed: 1921-06-02
Abstract: 170,551. Preo, J. L., and Henne, I. Oct. 21, 1920, [Convention date]. Heels, machines for. -Relates to heel-attaching machines of the type comprising a rotatable table, a series of shoe-mounts thereon, heel-clamping arms, and depressing - rods extending downwards from the arms through the table, and consists in means for retaining the clamping-pressure comprising upwardly spring-pressed clutch members on the table, each having a gripping-opening through which one of the rods passes, with manual means for releasing the rods when desired. As shown, a rod 11 is depressed by a pedal to clamp a heel after cement has been applied. The rod passes through an opening 21 in a clutch-plate normally pressed upwards about its left end by a spring 29. On release of the pedal the rod is gripped by the edges a, b of the opening, and clamping-pressure on the heel is maintained. When it is desired to release the heel, the right end of the plate 20 is depressed by a handle 31. allowing a spring 35 to raise the rod 11.
Patent GB-1429302-A (GB)
Title: Control systems for fuel supply systems for engines
IPC: F02D23/02
Filed: 1972-04-04
Abstract: 1429302 Automatic control of speed CAV Ltd 21 March 1973 [4 April 1972] 15346/72 Heading G3R In a system for controlling the fuel supply to a supercharged I.C. engine the pressure of air delivered by a turbocharger is used to vary the maximum amount of fuel that can be supplied. The system is used in conjunction with the control systems shown in Specifications 1416861 and 1416862. The air-pressure is signalled by a variable coupling transformer whose primary winding 48 is supplied by oscillator 49 and whose secondary winding 47 is connected to capacitor 69 which is charged up to a voltage corresponding to the airpressure. This provides the slope 35c in the maximum fuel line shown in Fig. 5. The lower limit 35a is obtained by the action of diode 61 and the upper limit 35b obtained by the action of diode 67. The output signal is used to modify the output of a reference current source used to limit the fuel supply pump output. Resistor 50 ensures that under fault conditions noise cannot cause spurious operation.
Patent GB-129873-A (GB)
Title: Apparatus for Utilizing the Kinetic Energy of Radio-active Substances.
Inventor: JONES JOSEPH
IPC: G21D7/02
Filed: 1918-09-21
Abstract: 129,873. Jones, J. Sept. 21, 1918. Radio - active substances, instruments for observing effect of. -A power-generator comprises a receptacle for radio-active material, and means to convey a medium, capable of expansion by heat, such as air, over the material, and thence to a motor. The motor may be a vane wheel or turbine. A clock may thus be driven. In a scientific toy, a vane-wheel 1 may be driven by the current of air &c. due to the heating-effect of a radio-active substance in a capsule 4 at the bottom of a tangential chimney 5, 6.
Patent GB-1098434-A (GB)
Title: Improvements in or relating to coating apparatus
IPC: B05C11/02
Filed: 1966-04-06
Abstract: Apparatus according to Specification 1,032,832 in which the grooves in the doctor roller extend parallel to the axis of the roller or are formed from a plurality of intercommunicating pits.
Patent GB-128477-A (GB)
Title: Improvements in and relating to Compositions containing Phenol-Formaldehyde Condensation Products.
Inventor: SCOTT GEORGE LEONARD
IPC: C08K3/22
Filed: 1918-09-23
Abstract: 128,477. Scott, G. L. Sept. 23, 1918. Compositions containing phenol-aldehydes.- Lime is used in admixture with phenol -form aldehyde resins to form plastic compositions. Filling components of the mixtures are fuller's earth, steatite, china-clays, clays, wood flour meal and pulp, waste cotton material, jute and other fibres. India-rubber, gutta-percha, or the like may be incorporated with the resin before addition of the calcium oxide and filling material. The mixture is moulded, dried at about 75-80‹ F., and heated to 350-400‹ F. In an example, 5-10 per cent of rubber dissolved in naphtha is added to an alcoholic solution of a synthetic resin and then, after stirring, 5-30 per cent of the powdered calcium oxide, the fillers, if used, being afterwards stirred in gradually.
Patent GB-541827-A (GB)
Title: Improvements relating to boxes or casings for housing electric switches and other electrical devices or apparatus
IPC: H01H19/06
Filed: 1940-10-19
Abstract: 541,827. Hand actuating devices for switches. CALLENDER'S CABLE & CONSTRUCTION CO., Ltd., and BRYCE, S. J. Oct. 19, 1940, No. 15462. [Class 38 (v)] [Also in Group XXVI] A box, having a rotary operating member 9 passing through it, whereby a tumbler switch 4 or other device is actuated, is made watertight by fixing a disc 10 to the handle 9 and putting plastic packing material 23 in a cavity between the disc and box. The disc 10 may have an annular projection 25 which co-operates with a groove on the box to form a bearing.