baber/WOPTO huggingface dataset:
Patent GB-626531-A (GB)
Title: Cam grinding apparatus
IPC: B24B19/12
Filed: 1947-01-13
Abstract: 626,531. Grinding cams. NORTON CO. Jan. 13, 1947, No. 1156. Convention date, Jan. 24, 1946. [Class 60] A cam grinding machine comprises a rotatable grinding wheel and a work table, a rock bar, a work support including a rotatable spindle on said rock bar, means to rotate said spindle, means including a master cam on said spindle and a follower roller to impart a rocking movement to said bar towards and away from the grinding wheel to generate a predetermined contour on a cam being ground, and means to impart a secondary movement to said rock bar so as to bodily shift the cam being ground to maintain a predetermined line of contact between the grinding wheel and cam being ground throughout the grinding operation. A rock bar 43 is pivotally mounted by trunnion studs 44, 45 on a frame 38 which is pivotally mounted by trunnion studs 39, 40 on the work table 11 which is longitudinally adjustable on the machine frame 10. The cam shaft 52 is rotatably mounted between a foot centre 51 on the rock bar and a centre 49 on a spindle 46 journalled in brackets 47, 48 on the rock bar. The spindle 46 is rotated by an electric motor through belt and pulley and a telescopic shaft having universal joints at each end. The spindle 46 carries a master cam 55 which cooperates with a follower roller 56 carried by a housing 63 on the table 11. The spindle also carries an auxiliary cam 58 co-operating with a follower roller 59 adjustably carried by the housing 63, this cam causing vertical movement of the rock bar 43 so as to maintain the point of contact between the grinding wheel 20 and work in a horizontal line passing through the centre of the grinding wheel. A tension spring 67 is connected to the housing 63 and to an arm 65 on the rock bar to maintain the work in contact with the grinding wheel.
Patent GB-1086142-A (GB)
Title: Differencing circuit, especially for signals derived by reading magnetic-film storage systems
Inventor: ALEXANDRE BERNARD
IPC: H03H7/42
Filed: 1965-01-11
Abstract: 1,086,142. Transformers. COMMISSARIAT A L'ENERGIE ATOMIQUE. Jan. 11, 1965 [Jan. 30, 1964], No. 1234/65. Heading HIT. [Also in Divisions G4 and H3] A differencing circuit responsive to input signals S 1  = ( -S/2+P), S 2  = (S 2 /2+P) at terminals 30, 32 where S denotes required signals in opposite polarities and P stray signals in similar polarities comprises input coaxial line sections coupled to distributed constant transformers 38, 40 comprising input coaxial lines 42, 44 wound on respective magnetic tori 46, 48 with the internal and external coaxial conductors functioning as primary and secondary windings. The inner conductors of the input lines are connected to those of the transformer inputs; the outer conductors of the input lines and the transformer inputs are earthed. The inner conductor of the output of transformer 38 is earthed, the outer conductors of both transformer outputs are interconnected, and the inner conductor of the output of transformer 40 is connected over coaxial line 52 and amplifier 50 to represent (S 2  - S 1 ) = S with elimination of P. The input signals may be derived from a reading loop operating on a magnetic film storage element (Fig. 1, not shown).
Patent GB-367745-A (GB)
Title: Improvements in brake mechanism for cycles
IPC: B62L1/08
Filed: 1930-12-05
Abstract: 367,745. Cycle brakes. RALEIGH CYCLE CO., Ltd., 177, Lenton Boulevard, and RAVEN H., 45, Lenton Road, The Park, both in Nottingham. Dec. 5, 1930, No. 1344/32. Divided on 366,199. [Class 136 (i).] In readily detachable brake mechanism for cycles, the U-shaped clips a for carrying the stirrup c are made substantially thinner at the bend to facilitate passing them over the chain stays &c. 6 of the frame without damaging the enamel. The clips a have forked extensions a<1> to receive guide studs c<1> on the stirrup c, which is so sprung, as by a spring strip e, and is so arranged relatively to the clips, that the studs c<1> tend always to move to the closed ends of the slots in the forked extensions a<1>, the stirrup being removable by pressing its ends inwards, so that the studs c<1> escape from the open ends of the slots.
Patent GB-703810-A (GB)
Title: Improvements relating to moving coil loudspeakers and other forms of transducer
Inventor: FOUNTAIN GUY RUPERT
IPC: H04R7/06
Filed: 1952-01-17
Abstract: 703,810. Magnetic telephone instruments ; pressure-type loudspeakers.' TANNOY, Ltd. Dec. 16, 1952 [Jan. 17, 1952], No. 1395/52. Class 40 (4) In a transducer having a diaphragm formed with a comparatively rigid central domed portion 12 registering with the rear face of a correspondingly domed central member 14, the other face of which co-operates with a surrounding member 18 to form the throat of an acoustic loading device, such as a horn 20, the domed central member 14 is supported by an annualar plate 15 provided with a short axially-extending flange 25 engaging the outer circumference of the magnet assembly. The domed central member 14 is preferably formed integrally with the annular plate 15 and is separated from it by a gap 16 interrupted only by a number of webs connecting the member 14 to the plate 15. The surrounding member 18 also may have a flange 26 which engages the outer face of the flange 25 on the plate 15. A rubber ring 30 is compressed between the plate 15 and the surrounding member 18. As shown, a horn-loaded moving-coil loudspeaker having the features described above incorporates a magnetic system of the type described in Specification 703,809.
Patent GB-501686-A (GB)
Title: Improvements in and relating to thermostatic control switches
IPC: G01K5/62
Filed: 1938-01-15
Abstract: 501,686. Thermal switches. BRITISH THOMSON-HOUSTON CO., Ltd. Jan. 15, 1938, No. 1408. Convention date, Jan. 15, 1937. [Class 38 (v)] A thermal switch comprises a U-shaped bimetallic strip 40 fastened to an adjustable member 58 and carrying at its free end a trough shaped armature 42 within which is mounted a spring carrying a movable contact 45 co-operating with an adjustable fixed contact 35 carried on an extension 30 of a plug-in contact 28 which also carries a snapaction magnet 33. An auxiliary heating coil 62 is connected between a second plug in contact 29 and a member 47 on which the member 58 is pivoted, so as to be in series with the bimetal strip 40 and contacts 45, 35. The switch is mounted on a wall by being plugged in to the control circuit by contacts 28, 29 and the temperature is set by a knob 27 on a screw threaded shaft 53 which moves the member 58 carrying the bimetallic strip against the action of a leaf spring 59. The differential is varied by screwing contact 35 into or out of plate 30.
Patent GB-220550-A (GB)
Title: Improvements in paper fingers for typewriting machines
IPC: B41J13/20
Filed: 1924-01-18
Abstract: 220,550. Fairweather, W. C., (Underwood Typewriter Co.)..Jan. 18, 1924. Sheet feeding and guiding arrangements. - A paper-finger consists of a stiff guide-finger, and a detachable yielding plate supporting a feedroller; the finger and plate may be secured to a longitudinally-adjustable bracket. A stiff guidefinger 26 and a thin plate 37 supporting a feedroller 33 are secured at the top, by means of screws 30, to an arm 24 of a bracket 17, the finger having a flange 28 for engaging the top of the arm. The feed-roller is pivoted in lugs 36 on the plate, and passes through an aperture formed in the finger, and arranged between lugs 34 thereon. The bracket consists of a yoke 19 engaging a rod 11, the end 17<a> of the yoke being extended and formed with the arm 24. To prevent the bracket from binding on the rod when moved laterally, the end 17<a> is formed with stiffening-flanges 22, 23. The yoke carries a spring- pressed key 20 normally engaging a groove 18 in the rod.
Patent GB-960443-A (GB)
Title: Improvements in closures for containers such as bottles
Inventor: KNIGHT ALAN STANLEY
IPC: B65D41/04
Filed: 1961-01-13
Abstract: 960,443. Stoppers. AUSTRALIAN GLASS MANUFACTURERS CO. PROPRIETARY Ltd. Jan. 13, 1961, No. 1475/61. Heading B8T. [Also in Division F2] A closure cap 12, Fig. 3, or a sealing disc therefor, has a plurality of depending ribs 14 which have one side parallel to the cap or disc axis and another side at an acute angle thereto, the ribs being adapted to curl inwardly or outwardly when they contact the end of a bottle neck. The cap is preferably of polythene and screw-threaded. When applied to a cap sealing disc 19, Fig. 4, the disc has ribs 20 on each side thereof and a flange 22 around the side.
Patent GB-125349-A (GB)
Title: Improvements in or relating to Nut-locks.
Inventor: NOSWORTHY WILLIAM HENRY
IPC: F16B39/10
Filed: 1919-01-21
Abstract: 125,349. Nosworthy, W. H., and Prescott, S. J. Jan. 21, 1919. Locking nuts.-A locking- washer furnished with tongues b to be bent up against side faces of a nut, and with a projection c to enter a recess in the work, is provided with a hole d at the same radial distance from the centre of the bolthole as the projection c. After placing the washer on the bolt, the hole d is used as a guide in forming the recess in the work at the correct distance from the bolt.
Patent GB-965009-A (GB)
Title: New 2,3-dimercapto-quinoxalines
IPC: C07F9/90
Filed: 1962-01-16
Abstract: The invention comprises 2,3-dimercapto-quinoxalines of the general formula: <FORM:0965009/C1/1> wherein R represents a hydrogen or halogen atom or a nitro, trifluoromethyl, C1-C4 alkyl or C1-C4 alkoxy radical; R1 represents a hydrogen atom or a hydroxy, alkyl, cycloalkyl, aryl, chloroaryl, aralkyl, alkylsulphonyl, arylsulphonyl or primary or secondary amino radical; and R2 represents a hydrogen atom or an acyl, alkyl, cycloalkyl, aralkyl, aryl, alkoxy, alkylmercapto, arylmercapto or a primary or secondary amino radical. They may be prepared by reacting a 2,3-dimercapto-quinoxaline of the general formula: <FORM:0965009/C1/2> or an alkali metal or ammonium salt thereof, with a compound of the general formula: <FORM:0965009/C1/3> in an aqueous or aqueous organic medium at -20 DEG  to + 100 DEG C. and preferably in the presence of an acid-binding agent. The compounds of the formula: <FORM:0965009/C1/4> wherein R1 and R2 represent alkyl, cycloalkyl, aryl, chloroaryl or aralkyl radicals, may also be prepared by reacting the 2,3-dimercapto-quinoxaline starting material specified above with two molecules of a carbodiimide of the general formula: R1-N=C=N-R2. Several examples are given and the compounds of the invention are stated to be pest control agents (see Division A5).ALSO:Compounds of the general formula <FORM:0965009/A5-A6/1> wherein R represents a hydrogen or halogen atom or a nitro, trifluoromethyl, C1 to C4 alkyl or C1-C4 alkoxy radical; R1 represents a hydrogen atom or a hydroxy, alkyl, cycloalkyl, aryl, chloroaryl, aralkyl, alkylsulphonyl, arylsulphonyl or primary or secondary amino radical; and R2 represents a hydrogen atom or an acyl, alkyl, cycloalkyl, aralkyl, aryl, alkoxy, aryloxy, alkylmercapto, arylmercapto, or primary or secondary amino radical, are stated to be pest control agents which may be employed in admixture with solid or liquid, diluents or carriers.
Patent GB-928664-A (GB)
Title: Process for use in the production of a semi-conductor device
IPC: H01L21/60
Filed: 1961-01-13
Abstract: A hard solder, used to bond an electrode plate to a metal member in a process of producing a semi-conductor device (see Group XXXVI) comprises 65% Ag, 27% Cu, 4% Mn, 4% Ni.  The melting-point of this solder is said to be 720 DEG  C.
Patent GB-839730-A (GB)
Title: Improvements in or relating to terminal fittings for pipes and tubing
Inventor: WRIGHT WILLIAM ERNEST
IPC: F16L33/24
Filed: 1958-01-16
Abstract: 839,730. Pipe end fittings. UNI-TUBES Ltd. Jan. 14, 1959 [Jan. 16, 1958], No. 1625/58. Class 99(1). A terminal fitting for tubing having external, helical convolutions 10 comprises a steel tubular element 12 which is internally screw-threaded along a part of its length to engage the convolutions 10 and which has a smooth cylindrical internal surface 15 projecting beyond the end of the tubing for reception of a hollow steel plug 17 provided with an extension 18 which fits snugly in the tubing and with a shoulder 22 between which and the end of the tubing a lead packing ring 2 is clamped when the plug 17 is forced into the tubular element 12. As shown, the tubing is formed from a helically wound steel strip having grooves 11 between the convolutions 10 which are engaged by the internal cusp-shaped screw-threads of the element 12. The plug 17 is provided with a flange 20 having a conical face which engages a conical socket in the part with which the tubing is connected by a union nut 23 which engages a flange 16 on the element 12, the flanges 16, 20 abutting each other when the sealing ring 21 is sufficiently compressed.
Patent GB-672889-A (GB)
Title: Improvements in or relating to butterfly valves
IPC: F16K1/226
Filed: 1949-01-20
Abstract: 672,889. Butterfly valves. NORMALAIR, Ltd., and RICHARDS, S. T. A. Jan. 20, 1950 [Jan. 20, 1949], No. 1637/49. Class 135. The closure disc a of a butterfly valve has pivots arranged outside the wall of a duct b of uniform bore in which the disc a is situated, the pivots being associated with crank arms which are rigid with the valve disc and have parts passing through apertures j, j<SP>1</SP> in the duct walls which are adjacent to but clear of the plane of contact of the disc with the duct when the valve is closed. In Fig. 3, the upper crank arm g is non-rotatably connected to an operating spindle h mounted in a stuffing-box i which seals off the opening j from the outside. The lower crank arm m is pivotally mounted on a fixed pivot n projecting from a cover plate o sealing the opening j<SP>1</SP>. The valve disc a has a resilient sealing-ring c and is formed with two co-axial holes e, d in which crank pins f, k on the crank arms g, m respectively are rigidly mounted. The apertures j, j<SP>1</SP> are formed as arcuate slots. extending 45 degrees either side of the longitudinal axis of the valve. One or more spring- loaded slippers p may apply pressure to the sealing ring. In the case of a split piston ring they act at the joint thereof. The sealing ring may be formed as a resilient tube containing a steel wire or as a thin inflatable ring. In the latter case, a detachable side plate on the valve disc forms one side of the groove for the ring. In a modification, Fig. 5, the cranks are formed integrally with the valve disc a, the lower crank m being journalled partly on the fixed pivot n and partly on a member forming part of the duct. The upper crank is connected by dogs q and notches r to the operating spindle h. The latter form of connection may be used for the form shown in Figs 1 and 3. The Provisional Specification also refers to a butterfly valve for an openended duct. In this case, the apertures or slots and the sealing means for the pivots are not necessary, and the cranks move freely in the space beyond the end of the duct. The crank arms may be journalled on the external pivots in which case the disc has an operating lever associated with it preferably on the axis of the duct.
Patent GB-989937-A (GB)
Title: New nitro-dyestuff pigments and process for their manufacture
IPC: C07D209/88
Filed: 1964-01-14
Abstract: Polyvinyl chloride is coloured in yellow, orange and brown shades using a pigment of the formula <FORM:0989937/C3/1> wherein Aryl is an aryl residue and R is a divalent aromatic residue.  In an Example (1) a pigment of the formula <FORM:0989937/C3/2> is ground with dioctyl phthalate, the paste mixed with polyvinyl chloride, dioctyl phthalate and cadmium stearate and rolled to give a reddish-yellow foil.ALSO:The invention comprises nitro pigments of the formula <FORM:0989937/C4-C5/1> in which Aryl is an aryl residue and R is a divalent aromatic residue.  The pigments are made by condensing a halide of an acid of the formula <FORM:0989937/C4-C5/2> with an aromatic diamine in a molar ratio of 2 : 1.  Examples are given of the preparation of pigments wherein Aryl is phenyl which may be substituted by a bromo, chloro, methyl or methoxy group or groups and R is derived from benzene, which may be substituted by one or more chloro, methyl, methoxy, ethoxy or p-toluene sulphonyl groups, naphthalene, dichloro-, dimethoxy or diethoxydiphenyl, anthraquinone and diphenyleneoxide.  The pigments colour organic products such as polyvinyl chloride in yellow, orange and brown shades.
Patent GB-1024072-A (GB)
Title: Improvements in or relating to article dispensing means
IPC: A47F1/06
Filed: 1964-01-15
Abstract: 1,024,072. Dispensing articles. W. A. ORD. Jan. 11, 1965 [Jan. 15, 1964; June 25, 1964], Nos. 1773/64 and 26315/64. Heading A4T. Storage, display and dispensing apparatus for boxes P comprises a plurality of rows A-D of vertical magazines 10 one behind the other with their upper horizontal dispensing openings set at different levels allowing a box to be withdrawn by hand forwardly across the top of the adjacent magazine, and means, e.g. a piston 12 spring-loaded at 14 on telescoping guide tubes 15 urging the boxes P to the dispensing opening. Each opening part covered by a glass plate 16 removable for filling a magazine. The magazines are incorporated in a framework of side members 20 and transverse members 18. The spring loading the piston may comprise a zig-zag or three different diameter coil springs telescoping into three interconnecting cups.
Patent GB-647841-A (GB)
Title: Synchronizing circuit
IPC: H02P5/48
Filed: 1948-01-21
Abstract: 647,841. Synchronous movements. FAXIMILE, Inc. Jan. 21, 1948, No. 1818. Convention date, Jan. 21, 1947. [Class 40 (iii)] A synchronizing system comprises an alternating current source of controllable frequency for driving a motor to be synchronized, means controlled by synchronizing signals for periodically shifting the said frequency toward a predetermined frequency, and means for periodically resetting the said frequency to a higher or lower value. Picture signals B from a facsimile transmitter are passed by a radio receiver 3 to the two electrodes 9, 12 of a normal " lawn-mower " type recorder while the synchronizing. pulses A are applied to the control electrode 24 of a thyratron 23. A commutator 32 is mounted on and driven at the same speed as the recorder drum 11 and at each revolution a segment 35 discharges a condenser 29 to remove the control potential from a variable frequency oscillator 14 which thus reverts to a predetermined frequency below the synchronous frequency. The oscillator 14 drives a synchronous recorder motor 13 and may be of the type described in Specification 632,408, [Group XL (c)]. Almost immediately a 30 degree segment 33 connects the control condenser 29 to the anode 26 of the thyratron 23 and as soon as a synchronizing pulse is received during this period the thyratron begins to transmit current and thus charges up the condenser 29 until the segment 33 leaves brush 37 and removes the anode potential from the thyratron 23. The potential of condenser 29 is thus dependent on the synchronism between the received pulse A and the commutator 32. If the pulse occurs early in the passage of segment 33 past brush 37 the potential is large and the oscillator 14 and commutator 32 speed up, whereas if the pulse A occurs near the trailing edge of segment 33 the potential on condenser 29 is low and the oscillator and commutator slow down. Within a few seconds equilibrium is established, the pulse A then arriving when the segment 33 is in the position shown in Fig. 1.
Patent GB-1463241-A (GB)
Title: Modifiers for poly-vinyl chloride- foam
IPC: C08L1/00
Filed: 1975-01-17
Abstract: 1463241 Core-shell polymer blends and their use in PVC foams ROHM & HAAS CO 17 Jan 1975 [22 March 1974] 2054/75 Headings C3C and C3P Modifier systems for use in rigid PVC foam comprise an intimate mixture of: (A) a first core-shell polymer, having a shell derived from more than 50 wt. per cent of at least one C 1-4  alkyl methacrylate and having a viscosity average M.W. above 1,500,000, said shell being polymerized in the presence of, but substantially ungrafted to, a cross-linked core derived from more than 50 wt. per cent of at least one C 2-8  alkyl acrylate and 0À1-5 wt. per cent, based on total monomers, of a glycol dimethacrylate cross-linker, the weight ratio of shell to core being from 40 : 60 to 75 : 25; and (B) a second core-shell polymer, having a shell derived from more than 50 wt. per cent of at least one C 1-4  alkyl methacrylate, said shell being polymerized in the presence of, but substantially ungrafted to, a non-cross-linked core derived from more than 50 wt. per cent of at least one C 1-8  alkyl acrylate. Preferably both (A) and (B) are derived wholly from (meth)acrylic monomers. In examples, (A) has a core of butyl acrylate/ 1,3-butylene glycol dimethacrylate and a shell of methyl methacrylate or methyl methacrylate/ethyl acrylate; and (B) has a core of butyl acrylate and a shell of methyl methacrylate; the admixture of the two being obtained by mixing individual emulsions and spray-drying.  The above mixtures are used as modifiers in otherwise conventional PVC foam formulations. In Examples V, X and XI foamable blends are formed from PVC, a mixture as above, dimethyltin - S,S<SP>1</SP> - bis(alkyl mercapto - acetate) as stabilizer, TiO 2  as pigment, barium stearate and stearic acid as lubricants, epoxidized soyabean oil as plasticizer, and azo-bis-formamide as blowing agent; and in Examples VI, X and XI these blends were foamed by extrusion,
Patent GB-284194-A (GB)
IPC: D01H7/56
Filed: 1928-01-23
Abstract: 284,194. Touron, A. Nau-. Jan. 22, 1927, [Convention date]. Spindle apparatus.-In ring spinning-machines the ring 1 is rotatable and is braked by a weighted cord 6, adjustable by hand or automatically, or by friction shoes, an additional braking being effected by adjustment of the ball or like bearing 3.
Patent GB-368918-A (GB)
Title: Improvements in or relating to absorption refrigerating apparatus
IPC: F25B15/10
Filed: 1931-01-23
Abstract: 368,918. Refrigerating. ELECTROLUX, Ltd., 153, Regent Street, London.- (Assignees of Platen-Munters Refrigerating System Aktiebolag ; 2, Norrmalmstorg, Stockholm.) Jan. 23, 1931, No. 2294. Convention date, Jan. 25, 1930. [Class 29.] Absorption systems.-Generation of refrigerant vapour, e.g. ammonia, from solution, is effected at a relatively low temperature in a vessel 10 heated indirectly by conduction through a mass of metal 23, 24, 25, such as copper or aluminium, itself heated by the heat of condensation of expelled solution vapour in the upper part of an auxiliary vessel 16 heated externally. Strong solution flows from the absorber 15, preferably a horizontal vessel with a small liquid head, through a pipe 19 to the generator 10, and the degasefied solution flows by a'pipe 18 to the auxiliary vessel, which is fitted with one or more apertured plates 26. These plates serve to catch the boiling liquid, which finds its way into a pipe 20 formed with a seal bend 21 and returns to the absorber. The plates 26 may be conical or helical, or set at an inclination, and may be formed of wire gauze. The apparatus shown is of the inert gas type, and condensate from the condenser 12 preferably enters the evaporator 13 through a pipe adapted to retain a column of liquid variable with pressure variations. Heat exchange between the liquor pipes 19, 20 is effected by a series of metal strips 22.