baber/WOPTO huggingface dataset:
Patent GB-794281-A (GB)
Title: Improvements relating to rotary drilling machines
IPC: B23B39/00
Filed: 1955-12-01
Abstract: 794,281. Drilling-machine details. STENSLUNDE, C. M. Dec. 1, 1955 [Dec. 1, 1954], No. 34447/55. Class 83 (3). [Also in Group XXVI] A rock-drill comprises a tool - holder 6 projecting from a barrel 5, a rotarymotor driving the holder and arranged around the bore of the barrel, through which a drill-rod may be passed, and means for feeding the barrel. The sliding- vane, pneumatic-motor (see Group XXVI), is housed in the barrel 5 and drives the hollow chuck - shaft 11 through a reduction-gear comprising a gear 16 on the hollow motor-shaft 10, an internal - gear 15 on the chuck-shaft 11 and several pairs of connected pinions 38, 17 meshing with the gears 15, 16 respectively. Air, into which a lubricant may be introduced, is fed to the motor through an inlet 39 from which it is also led to the motor-bearing 22 and beneath the motor-vanes 13 for retaining them against the casing 14. The air leaves the motor through ports 20 leading to a chamber 25, from which it passes to the reduction-gear through holes in an end-plate 26 of the motor. Openings 27 in a support for the pinion-shafts 18, and passages around bearings 28, 29 for the chuck-shaft, convey the air to exhaust-ports 30. A pinion 31, in a cradle 8 which supports the barrel 5 on a post 9, meshes with a feed-rack 32 on the barrel. The pinion is rotated by handles 36 through a pinion 34 and an internal gear 33 on the pinion-shaft. A spring-pressed locking-pin 37 may be turned into operative-position to enter locking-holes in the web of gear 33 to lock the feed. The gear-ratios may be changed in both the feed and drive-gear trains.
Patent GB-1149063-A (GB)
Title: Collimator
Inventor: GENNARO GIANNI
IPC: G21K1/02
Filed: 1966-08-01
Abstract: 1,149,063. Collimator. EUROPEAN ATOMIC ENERGY COMMUNITY (EURATOM) AND UNIVERSITA DEGLI STUDIDI PISA. 1 Aug., 1966 [17 Aug., 1965], No. 34453/66. Heading H5R. A collimator for restricting and guiding a beam of radiation, preferably high energy radiation, comprises an outer tubular jacket 1 (see Fig. 1) divided axially into two openable halves (Fig. 2, not shown) and having within the jacket circumferential or part circumferential bearer ribs 2 and a plurality of rings or short tubes 3 of radiation impervious or absorbent material slidably inserted between the bearer ribs so that the short tubes or rings are in axial alignment to form a continuous orifice for the passage of radiation. Preferably at least some of the rings or tubes 3 consist of two or more interfitting parts, e.g. 3a, 3b nested concentrically within one another. The two halves of the tube may be hinged together and the tube and fittings are preferably cylindrical. A segment 6 of the fittings 3 may be removed so that two of the collimators may be abutted on the flat surface and used as a pair. In this case the fittings 3 have centring apertures 4 which co-operate with centring pins 5. Preferably the ribs 2 extend only slightly beyond half the circumference, and the movable part of the jacket 1 slides with a frictional grip on the protuberant portions of ribs 2 rendering a separate safety closure unnecessary in a rigid vertical collimator system.
Patent GB-951640-A (GB)
Title: Servo motor system
Inventor: TYLER STANLEY RALPH
IPC: F02C9/16
Filed: 1959-10-12
Abstract: 951,640. Fluid-pressure servomotor control systems. DOWTY FUEL SYSTEMS Ltd. Oct. 11, 1960 [Oct.12, 1959], No.34511/59. Heading G3P. A servomotor control system receives at least two control signals each of which controls a separate servomotor having a lost motion connection with the controlled element, the position of which is therefore determined by the servomotor which has the greatest effective movement. An aircraft engine 1 has a spill spray nozzle 2 which receives fuel from a tank 5 via a boost pump 6, a shut-off valve 7, a filter 8, a main pump 9 and a minimum pressure valve 11. The amount of fuel supplied is controlled by a spill flow control valve 13 biased to the closed position by a spring 47 which acts on a plate 45 carried by the valve stem 46. The valve 13 is controlled by a system comprising a first servomotor responsive to engine speed and a second servomotor responsive to an engine gas pressure which reflects engine acceleration. The first servomotor comprises a speed governor 21, 22 having a loading spring 24 which is adjustable by a lever 29 via a linkage 28, 27 and a cam 26 and which acts on a lever 31 carrying a half-ball valve 39 controlling the vent pipe 38 from a cylinder containing a piston 35 connected by a pin-and-slot connection 43 to a pivoted lever 41 having a lost motion connection through a ball 44 with the plate 45. The spring 33 forms a feedback connection from the piston 35 to the lever 31. The second servomotor includes a bellows 52 responsive to the air pressure intermediate a restrictor 48 and a Venturi 49 in a bleed line from the engine compressor. The bellows 52 acts on a lever 56 carrying a halfball valve 58 which controls the vent pipe 59 from a cylinder 61 containing a piston 62 connected by a pin-and-slot connection 68 to a pivoted lever 66 having a lost motion connection via a ball 69 with the plate 45. A spring 65 forms a feedback connection from the piston 62 to the lever 56. The first servomotor also receives an overriding top speed signal via a generator (not shown) which controls an electric motor 73 acting on the lever 31 through a spring 74. In an arrangement described in the Provisional Specification the speed governor controls a piston-type pilot valve and the piston of the second servomotor is coaxial with the fuel spill valve, the signal receiving bellows of the servomotor being responsive to compressor output pressure for example.
Patent GB-521776-A (GB)
Title: An improved manufacture of addition agents for lubricating oils
IPC: C10G73/04
Filed: 1938-11-28
Abstract: 521,776. Lubricating oil compositions. STANDARD OIL DEVELOPMENT CO. Nov. 28, 1938, No. 34581 Convention date, Feb. 12. Addition to 509,550. [Class 91] [Also in Group IV] Addition agents for lubricating oils which act as pour point depressing agents are prepared by a modification of the process of the parent Specification which consists in subjecting the condensation product of halogenated aliphatic hydrocarbons or olefins with aromatic hydrocarbons to a further condensation with a dicarboxylic acid halide. This secondary condensation which is the feature of the present invention is effected with aluminium chloride or an equivalent catalyst of the Friedel Crafts type. The reaction may be carried out without a solvent or in the presence of solvents such as chlor-ethanes, naphtha, or carbon disulphide. After the reaction has been completed the catalyst is hydrolysed with water, or aqueous alcoholic alkali. It is preferred to carry out the two condensations separately, but if desired the condensation for preparing the starting material and the condensation which is characteristic of the present invention may be carried out simultaneously. The Specification contains information as to the manner in which the reactants and the amount used thereof may be selected with a view to obtaining any particular required characteristics in the final product. In examples (1) The starting material is prepared by condensing chlorinated paraffin wax with naphthalene in kerosene solution in the presence of aluminium chloride at 88‹C. for 6 hours. The catalyst is hydrolysed with alkali and the solvent distilled off. This initial material is then further condensed in tetrachlorethane solution with an acid chloride in the presence of aluminium chloride. Acid chlorides specified include oxalyl, succinyl, adipyl, sebacyl, and phthalyl chlorides. Tests are given to show the effect of these various reaction products on the viscosity index of oils. (2) The initial condensation product prepared as above is reacted in a range of proportions with sebacyl chloride. (3) The initial condensation product is condensed with adipyl chloride as in example (1) and the product combined with an oil and the properties determined. (4) The acid chlorides used in example (1) are combined with the initial condensation product in varying proportions and the effect of the resulting compounds on oils is determined.
Patent GB-801930-A (GB)
Title: Apparatus for emptying containers of iron oxide or the like
Inventor: THOMPSON MAURICE ARNOLD
IPC: C10K1/22
Filed: 1954-11-30
Abstract: 801,930. Breaking up iron-oxide &c. NEWTON. CHAMBERS & GO., Ltd. Nov. 30, 1955 [Nov. 30, 1954], No. 34689/54. Addition to 747,964. Class 59 [Also in Group XII] Apparatus of the parent Specification for emptying iron oxide or the like from purifled containers is modified by the provision of a number of separate deflector plates 22 (Fig. 5) fixed to and projecting downwards from a horizontal supporting structure arranged to extend over the container to be emptied, the plates 22 being fixed at such an angle (Fig. 2), that, during relative rotation of the container and the cutting mechanism, broken oxide or the like is propelled by them towards the central opening of the container. As shown in Fig. 5, the horizontal supporting structure comprises a flat plate 31, flanged beams 35 and 63 and a flat plate 19 to which plates 21 are welded and reinforced by gusset plates 32, the deflector plates 22 being bolted to the plates 21. The lower edges of the plates 22 are formed with cutting teeth 20 inclined to the plate itself so that each tooth makes a tangential cut in the oxide or the like. In modifications, the cutters may be bolted to the deflecting plates or they may be separately mounted on the horizontal supporting structure or on a separate supporting structure parallel to or inclined to the structure carrying the deflector plates. In the arrangement of Fig. 2, the deflector plates on one half of the supporting structure are staggered relative to the plates on the other half. In a further modification, however, the supporting structure extends over only half of the container and the deflector plates are arranged closer together. Specification 748,068 [Group XXXIII] is referred to.
Patent GB-1327288-A (GB)
Title: Foodquality single-cell protein material
IPC: A23L5/20
Filed: 1971-07-23
Abstract: 1327288 Single cell proteinaceous foods STANDARD OIL CO 23 July 1971 [24 July 1970] 34690/71 Heading A2B [Also in Division C6] A process for improving the quality of a single cell microbial food product comprises extraction with a solvent consisting of 24-40 vol% of water and 60-80 vol% of a C 1 -C 3  aliphatic alcohol. Preferred cellular products are derived from Saccharomyces cerevisiae, Saccharomyces carlsbergensis, Saccharomyces fragilis and Candida utilis.
Patent GB-928091-A (GB)
Title: Loud-speaking telephone systems, particularly for use in mines
Inventor: LESLIE JOHN ANGUS
IPC: H04M9/00
Filed: 1959-10-13
Abstract: 928,091. Two-station systems. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. Oct. 25, 1960 [Oct. 13, 1959], No. 34709/59. Class 40 (4). In a system particularly for use in mines having two stations connected by a 2-wire line 6, there is provided at each station a loudspeaker 5 used primarily for calling, this and the earpiece 3 of the handset being connected normally to the output of the local amplifier 4. Upon removal of the handset from the hook 7 the loud-speaker 5 is disconnected and D.C. is applied to relay 16 at both stations to energize the amplifiers, which may be of the transistor type. The circuit may be modified to avoid side-tone.
Patent GB-857124-A (GB)
Title: Washing machine
IPC: D06F37/22
Filed: 1958-10-30
Abstract: 857,124. Washing-machines. FRAME S.A. Oct. 30, 1958 [Nov. 8, 1957], No. 34890/58. Class 138 (2). [Also in Group XIII] A washing-machine comprises a perforated rotary drum 4, for washing and for spin drying, mounted on an axle 5 in bearing 6 within a tank 8 elastically suspended in the outer frame of the machine, the drum having a balancing device comprising inertia bodies 26 immersed in a liquid and rolling freely in annular chambers 22 that are hermetically sealed and secured to the drum. Transfer passages between the bodies and the walls of the passages permit flow of liquid around the bodies and the density of the bodies and the viscosity of the liquid are such that when the drum rotates at washing speed the bodies, under the effect of gravity, roll in the lower part of the passages, but when the drum is accelerated to the spin-drying speed, the bodies are carried in the direction of rotation before the spin drying speed is attained and arrange themselves around the annular chambers to balance automatically any irregularity of distribution of the bundles of linen inside the drum. The drum is driven by motor M through a speed change device V. The bodies 26 roll on rims 27 (Fig. 4) in contact with the outer walls of the chambers which have a hardness at least equal to that of hardened steel and a coefficient of friction at most equal to that of hardened steel. The sides of the bodies are provided with ball-bearings 28, each ball being partly engaged in a housing, the total volume of which is such that the weight of the same volume of material of the inertia body is equal to the weight of the ball. This arrangement ensures uniformity of distribution of the mass of the body and true balancing during spin drying. In a modification (Fig. 11, not shown), the bodies may comprise at least one bearing, the outer ring of which rolls along the wall of the annular chamber, a cylindrical body attached to the inner ring turning freely within the outer ring. In a further modification (Fig. 13, not shown), the inertia bodies are in the form of steel spheres and the annular chambers have a cross-section in the general shape of a square with two opposite angles cut off, being formed in part by a part of the end wall of the drum and by the edge of a flange secured thereto. The annular chambers are preferably situated at either end of the drum out of the path of water ejected during spin drying. A single annular chamber may be used, in which case the drum is preferably in the form of a double cone so that the bundles of linen, during spinning, distribute themselves on either side of the centrallysituated annular chamber.
Patent GB-1096879-A (GB)
Title: Improvements in ion exchange resin and application thereof
IPC: H01M8/10
Filed: 1965-08-17
Abstract: An ion exchange polymer comprises a sulphonated linear or cross-linked polymer of a , b , b -trifluorostyrene <FORM:1096879/C3/1> the linear polymer having a molecular weight of 13,500-400,000. The sulphonic acid radicals may be meta to the trifluoro-ethyl group and the polymer may be prepared by dissolving the polya , b , b -trifluorostyrene in chloroform in a concentration of 0.1-0.3 moles/1., adding a sulphonating agent, e.g. chlorosulphonic acid or oleum, in chloroform or perchloroethylene, in a concentration of 0.14 molecules/polymer phenyl group -3 moles/1. of solution at a temperature of 15-60 DEG  C. for at least 10 minutes; cross-linking of the polymer occurs when the sulphonating agents concentration is at least 2 molecules/polymer phenyl groups. The sulphonated polymer may be compounded with polyvinylidene fluoride or chloride, a copolymer of vinylidene fluoride or tetrafluoroethylene and hexafluoro-propylene or chlorotrifluoroethylene, polyvinyl chloride, polyethylene, polyvinyl acetate, neoprene rubber, polyacrylonitrile, styrene-butadiene copolymer rubber, chlorosulphonated polyethylene or polychlorotrifluorethylene, together with water or acetone, tetrahydrofuran, dimethyl formamide or dioxan and triethylphosphate.  The compositions may be used to form ion exchange membranes.
Patent GB-392263-A (GB)
Title: A new or improved machine for testing the balance of rotary bodies
IPC: G01M1/04
Filed: 1931-12-21
Abstract: 392,263. Testing balance of rotary apparatus. GUEST, J. J., Furzedown, Knee Hill, Abbey Wood, London. Dec. 21, 1931, No. 35270. [Class 106 (ii).] An adjustable balancing apparatus arranged to rotate with the rotor to be tested comprises two balance elements of equal but opposed mass-radius adjustable longitudinally relatively to one another and both adjustable angularly by moving them longitudinally. The balance elements 12, 13 may be changed according to requirements and are carried by balance arms 10, 11, each of which is itself balanced by two arms at 120‹ thereto. One element 10 is fixed to the sleeve 9 and the other 11 is slidable thereon without rotation. The sleeve 9 is mounted by a fast thread 8 on a spindle 2 which is in line with the rotor to be tested. Both elements are thus adjustable longitudinally to alter the phase by a fork 25 engaging a groove 26 and carried by a slider 21 which is moved longitudinally in a fixed bracket 22 by a screw 23. The element 15 is adjusted by an arm 14 engaging the groove 15 and moved in the slides 21 by a handle 17 and rack-andpinion gearing. The spindle 2 may be mounted by bearings on a bracket 1, or it may be mounted directly on the shaft of the rotor. In either case all the rotating parts are mounted on a frame which is pivotally or otherwise mounted so that want of balance may be readily detected.
Patent GB-1187248-A (GB)
Title: Inserts for Footwear
Inventor: WADKINS BERNARD
IPC: A43B17/04
Filed: 1967-09-25
Abstract: 1,187,248. Boots &c. B. WADKINS. 5 Aug., 1968 [25 Sept., 1967], No 35394/67. Heading A3B. An insert for footwear consists of a sheet of metal sandwiched between two layers of plastics impregnated fabric, the lower layer of fabric having an adhesive coating by which it can be adhered to a shoe and the upper layer of fabric having an aperture which exposes the metal layer to the foot. The layers are bonded together by waterproof adhesive. As described, a pair of inserts for a pair of shoes has one of the metal layers of zinc and the other of copper so that the galvanic action produces a minute electrical current.
Patent GB-1358048-A (GB)
Title: Adjusting device for tuner units
IPC: H03J5/00
Filed: 1971-07-28
Abstract: 1358048 Tuning selector SABA SCHWARZWALDER APPARATE-BAU-ANSTALT AUGUST SCHWER SOHNE GmbH 28 July 1971 [4 Sept 1970] 35446/71 Heading H3Q [Also in Division F2] In an adjusting device for a tuner 1 having tuning spindles 6, a coupling means 36 of an adjuster shaft 32 can be moved into engagement with a coupling member 41 of a selected spindle 6 by displacement of the adjuster shaft 32 from a rest position to an operative position and a further tuning spindle 7 can be associated with the adjuster shaft 32 and is coupled to the shaft 32 when the shaft is in the rest position by a gearwheel 36 mounted on the end of the further tuning spindle 7 which is in operative connection with teeth of the coupling means 36. The tuner may be a television receiver. In the selector position of knob 21 shown tuning spindle 7 is in the operative position. Adjusting knob 23 is maintained in its rest position by a spring 27 and by rotating adjusting knob 23 the tuning spindle 7 is rotated via gears 34, 33, adjusting shaft 32, gear 36, pinion 37 and a gear 40 on the spindle 7. This provides continuous tuning by nut 8 and arm 9 which engages a triangular abutment of a tuning slide member 10 determining the position of a tuning element such as rotary capacitors located in tuner casing 1. A scale indicator 13 is coupled to the tuning slide by a lever 12. By rotating the selector knob 21 to positions determined by a star wheel 22 and detent spring pre-set tuning to obtain as determined by the engagement of the selected arm 9 of the associated tuning spindle 6 with the tuning slide 10. Adjustment of the pre-set tuning of the spindle 6 in the operative position is obtained by pressing in and rotating the adjusting knob 23. The adjuster shaft 32 is moved axially towards a drum 3 carrying the spindles 6, 7 and a non- circular such as star shaped, end 41 of the selected spindle 6 is received within a corresponding recess in the end of the adjuster shaft 32 so that rotation of the spindle 6 is effected via gears 33, 34 and shaft 32. When the knob 23 is released the spring 27 causes the knob 23 and the shaft 32 to move away from the drum 3 and disconnect the end 41 from the shaft 32. Each tuning spindle 6, 7 may be part of a potentiometer. In a modification the shaft 32 may be offset to the tuning spindles 6, 7 so that with the spindle 7 selected the gear 36 engages directly a gear on the end of the spindle 7. Other gears on the ends of the spindles 6 are axially spaced from the gear on the shaft 32 so that engagement of gears is only possible by depressing the adjuster shaft.
Patent GB-1354444-A (GB)
Title: Electric motor
IPC: G03B19/18
Filed: 1972-07-28
Abstract: 1354444 Control of D.C. motors BOLEX INTERNATIONAL SA 28 July 1972 [30 July 1971] 35504/72 Heading H2J A rotor winding of an electric motor is energized after the motor is disconnected from its supply, the rotor winding producing a pair of poles which move into alignment with a pair of stator poles to bring the rotor to a predetermined angular position. The rotor winding may be the armature winding itself, as shown, or it may be an additional winding specifically provided for stopping the rotor. The motor shown has permanent magnet stator poles and an armature winding energized through a commutator 10 and brushes 11, 12. On opening switch S1 to disconnect the armature from the supply, capacitor C 1  charges up and triggers transistor T1 which in turn triggers transistors T4 and T6. The armature winding is then connected through segments 14, 15 of the commutator and through slip rings x and y to the supply. To prevent energization of the armature winding through the slip rings at a time when the N and S poles of the rotor would be aligned with the N and S poles respectively of the stator, diode D3 clamps the base of transistor T5 (and hence prevents T5 and T6 from conducting) to the negative voltage induced in the armature winding at that time. Alternatively, a cam mounted on the rotor shaft and co-operating with a stationary contact may prevent energization of the rotor winding at this position of unstable equilibrium of the rotor. 13 is a speed control circuit for electronically controlling the voltage applied to the motor.
Patent GB-1201997-A (GB)
Title: New substituted purines and purine derivatives
Inventor: BERGMANN FELIX GOTTHILF
IPC: C07D473/38
Filed: 1968-07-25
Abstract: 1,201,997. Purines and purine derivatives. YISSUM RESEARCH DEVELOPMENT CO. OF THE HEBREW UNIVERSITY OF JERUSALEM. 25 July, 1968 [4 Aug., 1967], No. 35513/68. Heading C2C. Novel 8-pyridyl- and 8-N-methylpyridiniumsubstituted purines and purine derivatives are prepared by direct condensation of the appropriate 4,5-diaminopyrimidines with an amidine. In forming the 6-mercaptopurine compounds it is preferred to sulphurate the corresponding hypoxanthine. 1 - Methyl - 3 - amidinopyridinium iodide hydriodide is prepared by keeping a solution of 3-amidinopyridine hydrochloride in dimethylformamide and methyl iodide at room temperature for 24 hours. 6-mercapto-8-phenylpurine is prepared by refluxing a mixture of 8-phenylhypoxanthine, phosphorus pentasulphide and dry pyridine 8-phenyl-6-thioxan. thine is prepared by sulphurating 8-phenylxanthine as described above. Pharmaceutical compositions comprising of 8 - pyridyl - and 8 - N - methyl-pyridinium-substituted purines and purine derivatives and having anti-tumor and hypotensive activity. Reference is made to Specifications 1,073,039, 1,073,040 and 1,077,689.
Patent GB-503261-A (GB)
Title: Improvements in and relating to high speed internal combustion engines
IPC: B23P19/04
Filed: 1937-12-22
Abstract: 503,261. Cylinders ; crank-chambers. WERKSPOOR, N. V. Dec. 22,1937, No. 35564. Convention date, Dec. 22, 1936. [Class 7 (ii)] In an engine.in which the crank-shaft is so heavy that resonance periods do not occur within the normal speed range, the width a of each of the big ends is less than the diameter D of the socket for the cylinder liner so that in the event of a piston seizure, the liner, piston and connecting rod can be removed together. Crank-chamber apertures 5; 10, closed by covers, provide access to the big end bolts, the piston and connecting rod being normally removed through the aperture 10.