baber/WOPTO huggingface dataset:
Patent GB-987614-A (GB)
Title: Improvements in shoe drum brakes
Inventor: RIDDY FREDERICK THOMAS
IPC: F16D65/09
Filed: 1961-09-22
Abstract: 987,614. Internal shoe-drum brakes. GIRLING Ltd. Sept. 21, 1962 [Sept. 22, 1961], No. 33954/61. Heading F2E. A shoe drum brake in which arcuate shoes in a rotatable drum are urged apart at one end by an actuator and their other ends engage a fixed abutment is provided with an automatic adjusting device which comprises a lever 12 engaged at one end by a thrust member (not shown) of the actuator 4 that actuates one of the shoes 2 and connected at its other end to an arm 15 for adjusting the position of the abutment of at least that shoe, the lever being pivoted directly or indirectly to the backplate 1 at an intermediate point 11 in its length. The abutments for the two shoes are in a housing 3 secured to the back plate. Indirect pivoting of the lever 12 is used when the actuator 4 is floating and is achieved by an arcuate link 10 that extends between a pivot pin 7 on the actuator and a pivot pin 9 on the abutment housing. When the brake lining wears the lever 12 turns sufficiently, when acted on by the thrust member of the actuator, to move the arm 15 far enough to cause a ring 16, from which it projects and which forms a ratchet device, to separate the abutments by an amount which compensates for the increased clearance. A screw with a conical end between the inner ends of the abutments may be incorporated, for manual adjustment. On release of the brake the lever 12 is returned by a spring 23.
Patent GB-410698-A (GB)
Title: Improvements in locks
IPC: B60R25/04
Filed: 1933-12-04
Abstract: 410,698. Locks; switches. SMITH, B. C., Pope, Mississippi, U.S.A. Dec. 4, 1933, No. 34079. [Class 44.] A lock controlled by a slider is provided with permutation mechanism which operates to block the bolt against withdrawal by the key if, in an attempt to pick the lock, the slider is lifted above the normal amount. The bolt can be withdrawn by the key only when the permutation discs have been reset. In the normal operation of the lock, the key 14 after insertion through a key-barrel 25 is turned clockwise first to raise the slider 28 out of engagement with a stop 19 on the casing, then to retract the bolt 10 by engagement with a shoulder 22, and finally to allow the slider to fall and engage behind the stop 19 to hold the bolt retracted. A projection 23 on the bolt prevents rotation of the key through a full 180� so that it cannot be withdrawn from the lock while the bolt is retracted. The bolt is formed in two parts and the head 10 is retracted through lugs 12, 15 when the tail 13 is retracted ; the head 10 is pressed outwards by a spring 17 co-operating with the lug 12 and a fixed lug 16 on the casing, which latter serves also to limit the outward movement of the bolt tail 13. The key 14, Fig. 7, has cut-away parts 33 and projections 34 to co-operate respectively with the slider 28 and the bolt, notches 36 being provided to receive the edges of the keyhole 26 in the lock casing as the key is turned. If, while the bolt 10 is shot, the slider 28 is raised more than its normal amount, the lower end 67 of a recess 66 therein engages with a pin 56 on a permutation disc 45 (rotatable on a spindle 40) to rotate the disc so that a notch 46 is removed from the end of a pivoted pawl 53 ; the pawl is thus lifted into the path of and blocks the upper end of a lever 50 which at its lower end engages with a recess 49 in the bolt tail so that the bolt is blocked against operation by the key. To reset the permutation disc 45, the slider 28 is raised by turning the key through 90� so as to disengage an arm 60 on the upper end of the slider from a notch in a second disc 44 to free it ; rotation of the disc 44 by a graduated knob 43 rotates the disc 45 by the co-operation of pins 57, 58 on the discs so as to bring the notch 46 under the end of the pawl 53 and the disc 44 can then be returned to bring its notch under the arm 60. A single spring 63, 64 mounted on a pin 62 is provided for the slider 28 and the pawl 53. As applied to the steering column of a motor vehicle, the bolt 10 engages with a hole 38 in the steering shaft F. The ignition circuit of the vehicle is closed when the key is inserted by the end of the key pressing in against a spring 76 a cylindrical plunger 74 of insulating material so that a conducting ring 77 thereon abuts against contacts 78.
Patent GB-1271453-A (GB)
Title: Process for making a magnetic film element
IPC: C23C18/50
Filed: 1969-07-07
Abstract: 1,271,453. Coating with ferromagnetic alloys; electrodeposition. INTERNATIONAL BUSINESS MACHINES CORP. 7 July, 1969 [12 July, 1968], No. 34103/69. Heading H1H. [Also in Division C7] A magnetic plated wire storage element is made by depositing a cylindrical ferromagnetic (e.g. Ni-Fe alloy having 70-90% Ni) layer upon a conductive cylindrical solid or hollow substrate 11 (e.g. of Be-Cu, or Au or Cr vapour deposited on glass) from a metal salt bath 14 by electroless and/or electro-plating whilst A.C. with no D.C. component is passed through the substrate longitudinally, e.g. by connecting the opposite ends of the substrate to the secondary winding 17 of a transformer 16, the primary 20 of which is connected to an A.C. source and amplitude control 21, to generate a circumferential alternating magnetic field in the film as it is formed. Prior to immersion in the bath, the substrate may be presensitized in PdCl 2 , solution after degreasing and polishing to deposit Pd thereon. The A.C. may be either a sinusoidal or square wave. Specification 1,038,315 is referred to.
Patent GB-781373-A (GB)
Title: Improvements in butterfly or like valves
IPC: F16K1/22
Filed: 1953-12-08
Abstract: 781,373. Butterfly valves. HENRION, M. C. E. Dec. 8, 1953 [Dec. 28, 1952], No. 34181/53. Class 135. A butterfly valve disc 5 is rotatable about a fixed spindle 4 which is supported by brackets 3 and is shorter than the diameter of the valve bore so that the line or surface of contact between the disc and the valve body, in the plane of which the axis of the spindle 4 lies, is unbroken. A plate 6 fixed to the disc retains the disc on the spindle. The valve may be actuated by a lever 13 which is slotted at 26 to receive a finger 14 on the disc and is carried by a spindle 11 passing through a stuffing- box 12. Alternatively, actuation may be by a pinion on the spindle 11 engaging a toothed segment fixed to the disc. A resilient or flexible seating ring for the valve disc may be fitted in the valve body.
Patent GB-1353762-A (GB)
Title: Carburizable steel
IPC: C22C38/60
Filed: 1971-07-21
Abstract: 1353762 Carburizable steel OVAKO OY 21 July 1971 [21 July 1970] 34203/71 Heading C7A A steel, suitable for carburizing, comprises: - the balance, apart from incidental elements and impurities, being Fe. Specified incidental elements are:- The steel may be hot rolled, heated at 900‹C and quenched in air or water. After carburizing it may be quenched in water.
Patent GB-511740-A (GB)
Title: Improvements in vehicles
IPC: B60T7/20
Filed: 1938-11-24
Abstract: 511,740. Vehicle rest-bars and brakes. SIGMUND, M. Nov. 24, 1938, No. 34252. [Class 108 (ii)] [Also in Group XXXIV] In a trailer vehicle of the kind which is provided with a foot or rest for supporting the trailer when uncoupled and also with a ratchetcontrolled brake mechanism, the element 1 serving as the supporting foot is provided, on its upper surface, with a series of notches or ratchet teeth 4 adapted to co-operate with the brake ratchet lever 11 and, at one end, with spaced lugs 5 for mounting the brake lever 9. As shown, the element 1 is of substantially triangular shape with a broad ground-contacting surface 3, and is secured by bolts 7 to a trailer draw-bar formed of two spaced angle-irons 6 which embrace the portion of the element 1 provided with the teeth 4. The ratchet lever 11 is adapted to be disengaged from the teeth 4 and the brake lever 9 operated either manually or by movement of a sliding rod 12 when the trailer over-runs the tractor.
Patent GB-795016-A (GB)
Title: An improved evaporator for refrigerators
Inventor: SOLOMON GEOFFREY FRANK
IPC: F25B39/02
Filed: 1955-11-30
Abstract: 795.016. Refrigerating. PRESSED STEEL CO., Ltd. Jan. 30, 1957 [Nov. 30, 1955], No. 34266/55. Class 29 A refrigerator evaporator is made by securing a coil 12 to a flat plate and by bending the plate so as to form a box-like freezing compartment F and a smaller icemaking compartment C. The outlet 32 of the coil may be connected to a plate evaporator depending into a storage compartment from which the freezing compartment is insulated. The evaporator is bent so that the coils are located inside the icemaking compartment and outside the freezing compartment, and the plate is fluted to seal the ice-making compartment walls at the exit points of the coil.
Patent GB-1167489-A (GB)
Title: Process for Producing a Thermosettable Epoxidized Novolac Resin
Inventor: BOOZALIS THEODORE STEVE
IPC: C08G8/28
Filed: 1968-07-18
Abstract: 1,167,489. Epoxy novolac resins. DOW CHEMICAL CO. 18 July, 1968, No. 34288/68. Heading C3B. An epoxidized novolac resin is prepared by the following steps: (1) at least 5 moles of resorcinol are reacted with 1 mole of formaldehyde under acidic conditions; the resultant novolac resin is separated from the reaction mixture at a temperature < 170‹ C. and a pressure < 3 mm. Hg absolute; (2) the resultant novolac resin is reacted with an epihalohydrin, e.g. epichlorohydrin, in the presence of an alkali metal hydroxide, e.g. NaOH, or a mixture of sodium carbonate and an alkali metal hydroxide. Step (1) may take place at 70- 120‹ C. In step (2) at least 3 moles of epihalohydrin may be used per equivalent of phenolic hydroxyl groups in the novolac. The resins may be cured with conventional epoxy resin hardeners, e.g. polyamines or polycarboxylic acid anhydrides.
Patent GB-1152508-A (GB)
Title: Asymmetric Alternating Current Welding
Inventor: NORMANDO NEIL J
IPC: B23K9/12
Filed: 1967-07-26
Abstract: 1,152,508. Welding by fusion. AIR REDUCTION CO. Inc. 26 July, 1967 [1 Aug., 1966], No. 34363/67. Heading B3R. [Also in Division H2] In alternating current consumable electrode arc welding, e.g., gas shielded or flux submerged or using a flux coated electrode, the welding current is at reverse polarity (electrode positive) for a duration in excess of that at which it is at straight polarity. A D.C. source 20 is periodically inverted by a mechanical inverter 24 under control of a gating circuit 28 which also controls an arc re-ignition circuit 26 to strike the arc at a predetermined time after a current reversal. The re-ignition circuit provides a high frequency starting pulse to ignite the arc for each reverse polarity pulse, the arc being self igniting during the straight polarity pulses. Alternatively the starting pulse may be provided both at reverse and straight polarities. In modifications (see Division H2), the mechanical inverter is replaced by a solid state circuit. The gating and re-ignition is also performed by solid state circuits. The arc parameters are adjusted so that no metal transfer occurs at straight polarity and spray transfer occurs at reverse polarity.
Patent GB-1035370-A (GB)
Title: Improved recording means in a waveguide system
IPC: H01P1/22
Filed: 1963-09-02
Abstract: 1,035,370. Waveguide attenuation. MICROWAVE INSTRUMENTS Ltd., and J. BILBROUGH. Aug. 31, 1964 [Sept. 2, 1963], No. 34539/63. Heading H1W. [Also in Division G1] The position of the movable member of a waveguide attenuator is determined by a potentiometer whose slider is mechanically coupled to the member, to produce a voltage indicative of the displacement. As shown (Figs. 1, 2) a waveguide attenuator comprising a resistance element 1 mounted inside a waveguide 2, is varied by rotation of a spring-biased screw 7. The extent of the movement is measured by a flat potentiometer 9 (Fig. 1) mounted on the side of the housing 6, or a helical potentiometer 14 (Fig. 2) mounted on the screw 7. The potentiometer may be wound non-linearly to compensate for non-linear response of the attenuator, or a cylindrical potentiometer may be coupled to the screw 7 through a cam to produce a desired relationship between screw rotation and output voltage.
Patent GB-178159-A (GB)
Title: Improvements relating to carburetters for internal combustion engines
IPC: F02M9/00
Filed: 1920-12-08
Abstract: 178,159. Greenwood, J. H. Dec. 8, 1920. S p r a y carburettors. - A carburettor in which the nozzle and its surrounding passage are of the kind described in Specification 111,754 is provided with a valve casing g containing cupshaped throttle and air valves B, A, of which the valve B is mounted rigidly on a rod actuated by a Bowden wire b, whilst the valve A is slidably mounted on the rod and is pressed against an adjustable stop a' thereon by a spring a<2>. The valves are normally actuated simultaneously, but the valve A may be adjusted, by a separate Bowden wire, relatively to the valve B which is limited in its closing movement by a stop g<3>. When the valve B closes the carburettor mixing chamber b<2>, it places air inlets g<2> in communication with the engine induction pipe H and when it is moved to open up the chamber, the valve A opens the passage a<4>, which conducts air from the inlet a<5> to the space around the nozzle F. The nozzle outlet is controlled by a self-centring needle valve C formed in two parts connected by a ball-andsochet joint c and actuated by a lever c<1>. In a modification, the'needle valve is actuated by a pulley rotated by a Bowden wire either in conjunction with the valves A, B or independently. In the construction shown in Fig. 7, the needle valve C passes through an air tube D within the fuel nozzle and is actuated from the air and throttle-valve rod a through lever a<8>, a<9> and adjustable connection a'. The lever presses upon a plate a<10> engaging collars on the needle valve. In a further modification, the valve. casing a is vertical.
Patent GB-511278-A (GB)
Title: Improvements relating to turbines and compressors
IPC: F01D5/14
Filed: 1937-12-15
Abstract: 511,278. Turbine bidding. WHITTLE, F. Dec. 15, 1937, Nos. 34687/37 and 1063/38. [Class 110 (iii)] The entry and leaving angles of the blades of an axial flow turbine or turbine type compressor, vary progressively from the root to the tip so as to conform to the condition that the whirl velocity of the working fluid, over any entry plane or leaving plane, varies inversely as the radius. Rotor blades 16 are shrouded at 19 and run within a corrugated stator surface 20. A space 15 between the stator blades or nozzles 10 and the rotor blades is of a width at least a quarter and preferably more than half of the chordal dimension of the blades.
Patent GB-195707-A (GB)
Title: Improvements in or in connection with the metal running board of motor road vehicles
IPC: B60R3/00
Filed: 1921-12-28
Abstract: 195,707. Hardy, S. C. Dec. 28, 1921. Mats.-A metal running board b of a motor road vehicle is provided with upstanding flanges c at its longitudinal upper edges between which fits a full length mat d of rubber or similar flexible material, the mat being secured by means of transverse metal plates and screws or bolts f passed through the plates, mat and running board into transverse strips of wood h below the latter.
Patent GB-467424-A (GB)
Title: Improvements in and relating to aeroplanes and particularly to the mounting of tail wheels or tail skids thereon
IPC: B64C25/50
Filed: 1935-12-16
Abstract: 467,424. Aircraft alighting gear. PERCIVAL, E. W. Dec. 16, 1935, No. 34829. [Class 4] A self-aligning tail-wheel or skid for aircraft is urged to its central position by spring-pressed plungers 6 which engage a projection or projections 5 on the pivot for the wheel or skid. As shown, the tail wheel 1 is mounted in a fork 3 carried by a stem 4 which is pivotally mounted in a cylinder 9 carried by a lever 15 pivoted to the fin-post 23. The plungers 6 are guided in a housing 8 secured to the cylinder 9. The lever 15 is pivoted to a shock-absorber pivoted to the fin-post and which includes telescopic cylinders 30, 31 housing a compression spring 38. The cylinder 31 is split at 39 and lined with friction material. The split may be adjusted by bolts 41. Separation of the cylinders 30, 31 is restricted by a rod 49 connected to a bracket 50 and passing through a bracket 44, a spring 45 being interposed between the end of the rod and the bracket 44. Lubricating-channels are provided in the bolts forming the pivots..
Patent GB-751711-A (GB)
Title: Glass coloration
IPC: C03C23/00
Filed: 1954-12-01
Abstract: 751,711. Glass. CORNING GLASS WORKS. Dec. 1, 1954 [Dec. 28, 1953], No. 34829/54. Class 56 In the colouring of a porous glass containing over 93 per cent of SiO 2  generally as in Specification 533,053 the colour is formed only in a uniformly thin layer spaced inwardly from the surface of the glass. This is effected by impregnating only the pores near the surface with the colouring solution and then causing this to penetrate, by capillary action, the pores in the next layer by impregnating with an uncoloured volatile liquid the pores originally filled by the colouring solution.
Patent GB-952220-A (GB)
Title: Process and apparatus for wet-pelleting carbon black
IPC: B01J2/12
Filed: 1961-09-28
Abstract: 952,220. Wet pelleting carbon black. PHILLIPS PETROLEUM CO. Sept. 28, 1961 [Aug. 1, 1961], No. 34854/61. Heading B5A. [Also in Division G3] Wet pellets of carbon black of predetermined moisture content are formed by feeding powder and water to a pelletizer-mixer 10 rotating at constant speed and sensing the mixing power required and the liquid feed rate and controlling the liquid feed rate in response to changes in the sensed power by means of an electro-pneumatic system. The pelletizer comprises a pug mill rotatable about shaft 12 along which chisel pointed diametral rods are helically disposed. Powder feed line 16 enters from a bin 50 through hand-operated star valve 48 and aqueous solution feed line 18 enters through an indicating flow transmitter 32 and motor valve 30. Shaft 12 is driven by motor 22 from power source 28 which is connected through step-down transformer 42 to electro-pneumatic transducer 38 and thence pneumatically through pressure pulsation damper 40 to master receiver controller 36 and slave receiver controller 34 which compares the power signal with that from the flow transmitter 32 and adjusts the motorized valve 30 to maintain the required relationship; increased power demands arising from too high a liquid flow rate resulting in adjustment of motor valve 30 to decrease the liquid flow rate.
Patent GB-1318835-A (GB)
Title: Numerical control system with controlled dwell
IPC: G05B19/18
Filed: 1971-07-26
Abstract: 1318835 Programmed control of machine tools BENDIX CORP 26 July 1971 [ 5 Aug 1970] 34873/71 Heading G3N  Numerical control system for a machine tool wherein the carrying-out of a command is inhibited until a predetermined relative motion of a cutter has occurred following the completion of a previous command. As shown, a spindle drive 18, and X, Z axis servo drives 28, 48, 36, 50 for a lathe are powered from an active store controller 46 responsive to a part program on a tape 42 which is sequentially read by a reader 44. The servo 48 incorporates a command counter 56 into which pulses, denoting desired centring movements, are fed together with pulses from a clock 52. The output of the reference counter is also fed,through a filter and amplifier 60, to a resolver 62 the signal from which is compared in phase with the output of the command counter 52 in a discriminator 64 to derive a phase error voltage which controls the axis drive 28. The spindle drive 18 is directly controlled by the controller 46 A transducer 80 is driven from the spindle 20 through gearing 82 and develops a pulse train which is fed to a dwell control 72 which is initiated by a programmed code signal from the controller 46. Additionally, from each axis servo are received output signals, from the command counter and resolver, which are in phase when the tool is at the commanded position. At a critical following error point near the commanded position the dwell control initiates a command inhibit signal on a line 76 which is maintained until the accumulated pulses indicate that the spindle has made one revolution. The small amount of material represented by the critical following error is removed during this revolution and the operation is stated to avoid work-hardening of the workpiece surface. It is stated that the dwell control system can also be applied to point-topoint movements and mills and drill presses.
Patent GB-894862-A (GB)
Title: Separation of polyolefins
IPC: C08F6/04
Filed: 1959-10-16
Abstract: High molecular weight crystalline polymers of an olefin of formula R - CH = CH2 or <FORM:0894862/IV (a)/1> where R is a monovalent aliphatic, cyclo-aliphatic or aromatic hydrocarbon radical and R1 is a divalent aliphatic or cycloaliphatic hydrocarbon radical are separated from low molecular weight polymer fractions thereof by dissolving a mixture thereof in a solvent, heating the solution to above the melting point of the polymer and under sufficient pressure to maintain the density of the solvent vapour or liquid solvent in the polymer solvent phase above the precipitation density of the solvent reducing the pressure and removing as separate streams molten high molecular weight polymer and a solvent-low molecular weight polymer phase.  The solution of polymers may be heated to above the critical temperature of the solvent and held there while the pressure is reduced.  Specified olefins are propylene, butene-1, styrene, 3-phenylpropene-1, 3-phenyl-butene-1, 4-phenylbutene-1, isobutyl-ethylene, isopropylethylene, bicyclo(2, 2, 1) -heptane-2, and dihydrocyclopentadiene, while pentane, n-hexane and cyclohexane are specified solvents.
Patent GB-804084-A (GB)
Title: Therapeutic compositions
IPC: A61K8/49
Filed: 1956-11-16
Abstract: Therapeutic compositions and toilet preparations comprise a 5-amino hexahydro pyrimidine compound of formula <FORM:0804084/VI/1> where R is an aryl, aralkyl or alkaryl group and R1 is a methyl or ethyl group, or where R is an alkyl, hydroxyalkyl, amino alkyl or cycloalkyl group and R1 is a hydrogen atom, a propyl or butyl group or a hydroxymethyl group, and a pharmaceutical carrier.  The pyrimidine compound may be used in amounts less than 1 per cent by weight.  Specified compounds include 1,3 - bis(isopropyl) - 5 - hydroxymethyl-; 1,3-bis(ethylhexyl-; 1,3 - bis(ethylhexyl) - 5 - hydroxymethyl-; 1,3 - bistolyl - 5 - methyl-; 1,3 - bisbenzyl - 5 - methyl -; 1,3 - bis(methylbenzyl) - 5 - methyl-; 1,3 - bisphenyl - 5 - methyl-; 1,3 - bis - (phenylethyl) - 5 - methyl -; 1,3 - bis(ethylhexyl) - 5 - propyl-; 1,3 - bis-(ethylhexyl) - 5 - butyl - 5 - amino - hexahydropyrimidines.  The compositions may be prepared in the form of paste, powder and liquid dentifrices, mouth washes, chewing gum, tablets, lozenges, water-washable and non-water-washable ointments, ophthalmic ointments, scalp lotions, nasal preparations (nasal jellies, sprays and drops), aerosols, foot powders, insufflation powders, vaginal preparations and compositions for parenteral administration.  Solid carriers specified include starch, gelatin, lactose, talc and boric acid. Surface-active agents, e.g. ethanolamine salts, polyvinyl pyrrolidone and complex sorbitol ether-esters; may be added to form aqueous dispersions.  Dental preparations may contain a water-soluble oxalate, e.g. sodium, potassium or ammonium oxalate or the urea salts of oxalic acid in amounts from approximately 0.25 to approximately 1.5 per cent by weight.