baber/WOPTO huggingface dataset:
Patent GB-149548-A (GB)
Title: Improvements in shock absorbers for vehicle springs
IPC: B60G11/36
Filed: 1919-10-10
Abstract: 149,548. Boswell, G. G. F. Oct. 10, 1919. Spring shackles.-A shock absorber inserted between a vehicle spring and its bracket comprises a. shackle 5 pivoted to links 7 on the bracket 23 and also to a base member 12 and the vehicle spring 2, an auxiliary spring 17 being interposed between the free ends of the shackle and base member. The base 12 has an extension 13 provided with bolts 14, 15 bearing against the spring 2; to reduce friction the bolt 14 may have a roller 16. The bolt 11, which secures the shackle, base, and spring 2 together, may be prevented from independent rotation by a plate 28 secured to the shackle and engaging the head of the bolt. The shackle may be adjusted for different loads by clamps 26 of varying thickness which position the links with respect to the bracket 23 but permit the pivotal movement of the shackle. To limit the separating movement between the base 12 and shackle 5, the latter has a shank 19 and head 22 engaging the base.
Patent GB-732252-A (GB)
Title: Improvements in or relating to clutch operating mechanism for motor vehicles
Inventor: BRADBURY FREDERICK JAMES
IPC: F16D48/04
Filed: 1952-10-07
Abstract: 732,252. Clutches. AUTOMOTIVE PRODUCTS CO., Ltd. Oct. 7, 1953 [Oct. 7, 1952], No. 25137/52. Class 80 (2). In a motor-vehicle friction clutch comprising a driven plate 16 adapted to be gripped between a driving flywheel 14 and a presser plate 15 by centrifugal weights 18 acting between the plate 15 and a spring-loaded reaction plate 17, the latter is controlled by radial levers 19 cooperating with a release bearing 22 controlled by a fork 23 fast on a shaft 24 on which arms 25, 26 are also fast, arm 25 being connected by a rod 27 to a clutch pedal 29 while arm 26 is connected by a rod 33 to an arm 34 pivoted at 35 on an arm 36 pivoted on a fixed pin and connected by a rod 39 to a vacuum servo-motor 40 controlled by a valve. A notch 41 on arm 34 is normally engaged by a pin 42 on an arm 43 pivoted at 44 on arm 36, so that, while the bearing 22 may be moved to the left, so as to disengage the clutch at any speed either by energization of the servo 40 or by depression of the pedal 29, the stroke of the servo is so limited that the bearing 22 cannot move to the right to allow the clutch to engage below the critical speed. Arm 43 has a lost-motion connection at its pivot 44 with an arm 45 connected by rod 46 to a spring-loaded lever 47 pivoted at 48 and controlled from a hand lever 52 through a Bowden wire 50. To allow the clutch to engage below the critical speed, pedal 29 is first depressed, to relieve the linkage from load, and lever 52 is then operated to disengage pin 42 from notch 41, after which the pedal 29 is released. To restore automatic operation, pedal 29 is fully depressed to allow pin 42 to re-enter notch 41. In a modification, the arm 43 is directly connected to the Bowden wire. According to the Provisional Specification, the servo is energized during gear changing.
Patent GB-1438539-A (GB)
Title: Fault protection for dc motor thyristor power supplies method of applying an adhesive material to a structural part
IPC: H02H7/08
Filed: 1973-05-25
Abstract: 1438539 Controlling D.C. motors; protecting converters SQUARE D CO 25 May 1973 [7 Sept 1972] 25232/73 Headings H2F and H2J In a D.C. motor control system having a converter to supply the motor from an A.C. source, A.C. line failure while the motor is regenerating can cause overload of the converter. This is prevented by a capacitor 27 which is discharged through the converter 14 under control of a thyristor 26 in response to line failure so as to turn off the main converter thyristors. As described, a shunt, series or compound motor 11 is supplied with D.C. from a forward bridge rectifier 14 or a reverse bridge rectifier 15. A.C. line failure during regeneration initially causes the current in transformer 46 to drop to its magnetizing level before tending to increase sufficiently to blow fuses 45. A.C. line failure is detected by unit 41 which terminates operation of the firing system 20 and signals a fault protection module 37 to turn on thyristor 26 or 30 (appropriate to which of bridges 14 or 15 is operative) and thus turn off the conducting thyristors, e.g. 14c and 14e of that bridge by discharge of capacitor 27 or 31. The capacitor continues to discharge through the motor 11 and, on re-charging, turns off the protecting thyristor 26 or 30.  Fault protection module 37 (Fig. 3, not shown) charges a capacitor (96) from a voltage supplied by unit 41 and, in the event of failure of this voltage (due to A.C. line failure), triggers an auxiliary thyristor appropriate to thyristor appropriate to thyristor 26 or 30 by discharge of capacitor (96). A further circuit is described which selects the appropriate auxiliary thyristor in response to a signal 39, the polarity of which is indicative of the operative one of bridges 14 or 15.
Patent GB-390843-A (GB)
Title: Processes for the production of hypnotics of the hydantoin group
IPC: C07D233/72
Filed: 1931-09-08
Abstract: Optically-active disubstituted hydantoins of the formula <FORM:0390843/IV/1> in which R1 represents a saturated or unsaturated aliphatic residue and R2 an unsaturated aliphatic residue different from R1 or an aromatic residue, are obtained by resolution of the racemic compounds or by synthesis from optically-active starting materials.  Aliphatic residues mentioned are methyl, ethyl, propyl and bromallyl, and phenyl as an aromatic residue. The synthesis may be effected by interaction of disubstituted aminoacetic acids or their esters with urea or a cyanate, or of disubstituted aminoacetamides or aminoacetonitriles with urea, a cyanate, or a reactive carbonyl compound such as phosgene; the hydantoins may also be synthesized by treatment of the corresponding hydantoic acids, nitriles or esters with acids.  The products possess hypnotic properties.  The optically-active starting materials may be prepared as follows:--aminoacid esters by the asymmetric hydrolysis of the racemic compounds with pancreas or liver esterase, amino-acetamides by mild dehydration of the optically-active ammonium salts and by treatment of the optically-active esters with ammonia, amino-acetonitriles and hydantoic acid nitriles by treatment of optically-active ammonium salts or amides using such dehydrating agents as phosphorus pentoxide or pentachloride or thionyl chloride. According to the examples, (1) racemic 5 : 5<1>-phenylethylhydantoin is resolved by means of brucine; (2) racemic phenylethylaminoacetic acid is converted by formic acid into its formyl compound; this is then resolved by means of quinine and the optically-active products, after saponification, heated with urea to form the hydantoic acid, which is converted into phenylethylhydantoin by treatment with dilute sulphuric acid; (3) d-phenylethylaminoacetic acid is converted into its ethyl ester which, by treatment with urea, gives d-phenylethylhydantoin.  Specification 105,719, [Class 2 (iii), Dyes &c.], is referred to.  The Specification as open to inspection under Sect. 91 (3) (a) refers to a hydroaromatic group such as cyclohexyl in connection with the definition of R2, and states that the hydantoins may be synthesized by oxidation of disubstituted cyanoacetamides; this subject-matter does not appear in the Specification as accepted.
Patent GB-1013747-A (GB)
Title: Ceramic refractory and method
IPC: C04B33/13
Filed: 1964-06-18
Abstract: A refractory body is prepared by sintering a mixture of refined zircon and 0.5-7.5% by weight of a preformed glass having an oxide analysis of 10-20% Na2O, 15-25% ZrO2, 55-75% SiO2 and 0-2% of CaO+MgO. Prior to sintering the mixture may be cast from an aqueous slip of pH 4.7-6.5 containing a deflocculant, e.g. sodium silicate or alginate, or moulded in admixture with a binder and lubricant, e.g. an aqueous solution of a polyethylene glycol.  Specification 779,596 is referred to.
Patent GB-502116-A (GB)
Title: Improvements in tables, seats and the like furniture
IPC: A47B5/06
Filed: 1937-09-18
Abstract: 502,116. Sliding tables, seats, &c. ENSOR, C. A. Sept. 18, 1937, No. 25357. [Classes 52 (ii), 52 (iii), and 52 (v)] A bracket table, seat, or like article of furniture particularly for use in caravans is provided at its rear edge with one or more slide heads 2 disposed in the plane of. the table &c. top and engaging a horizontal guide rail 3 fixed to the wall of the caravan directly opposite the slide head and affording a sup. porting and sliding means for the whole rear edge of the article. As shown applied to a table 1 the guide rail 3 is secured to a batten 4 hinged to the wall 5 so that the table can be tilted upwards to remove the leg from the floor while sliding the table. The table has a folding extension leaf 6 and a slidably extending underframe 7. In a modification the slide head is of trunnion or spherical shape engaging a circular-section guide. The parts may be arranged to permit sliding action only. According to the Provisional Specification the article may be swung laterally.
Patent GB-172284-A (GB)
Title: Improved power transmission mechanism
IPC: B63H1/36
Filed: 1921-09-24
Abstract: 172,284. Wels, F. Nov. 27, 1920, [Convention date]. Fans.-Power transmission apparatus for producing propulsion or for pumping liquids and gases or the like and for similar purposes comprises a plate or fin which is given a reciprocating and/or vibratory motion analogous to the motion of a fish's tail or bird's wing. A connecting rod P is connected at one end to a driving crank K and at the other end is constrained to move in a guide V along the line CD and carries a vane W. The vane is rigidly attached at right-angles to the rod and at a point one-third of the width from the front edge. The rear edge is flexible. More than one thrust surface W may be linked to the main surface W on the rod P and be constrained by the guide V. The complete installation may comprise a number of these units. The reciprocation of the vane may be effected directly from the piston of the prime mover, or any variant of the ordinary slider-crank-chain mechanism used as an intermediate transmission.
Patent GB-150731-A (GB)
Title: Improvements in or relating to cocks
IPC: F16K1/42
Filed: 1920-09-03
Abstract: 150,731. Maerschalck, J. Oct. 10, 1913, [Convention date]. Void [Published under Sect. 91 of the Act]. Closure members. - The india-rubber valve member of a water tap is protected from splitting by an enclosing metal cup d, f. The valve casing e is formed in a cylinder provided with openings m.
Patent GB-798630-A (GB)
Title: Process for the production of salts of the phosphoric acids
Inventor: HERMES KARL
IPC: C05B13/06
Filed: 1955-09-06
Abstract: In reactions, which produce phosphates, between a solid and a liquid or gaseous phase or in condensation of phosphates or phosphate mixtures, the solid material is agitated and kept in suspension by vanes on a rotating shaft situated in the lower part of a rotary drum heater.  The heating may be by means of the reaction or an inert gas and finished material may be reintroduced to prevent the formation of a paste around the vanes.  The production of superphosphates and sodium, calcium magnesium. alkali metal and alkaline earth metal phosphates is exemplified.
Patent GB-598678-A (GB)
Title: Improvements in airtight containers for electric devices
IPC: H01H51/29
Filed: 1945-10-02
Abstract: 598,678. Switch cases. GENERAL ELECTRIC CO., Ltd., and HARRISON, W. J. D. Oct. 2, 1945, No. 25602. [Class 38(v)] [Also in Group XXXVI] An electrical device such as a relay 1 is hermetically sealed in a metal container 2, the open end of which is closed by an insulating terminal-block 6, having tubular terminals 11 which are shouldered so as to compress annular rubber sealing-gaskets 10 into recesses in the block 6, when the inner ends of the terminals are spun-over. Connecting-wires for the device pass through the terminals 11 to which they are soldered at 15, and the device is secured to the container 2 by screws 5, the heads of which are under-cut, as shown, so that the edges cut into the container and form an airtight joint therewith. The container is finally sealed by a cover 12 which is forced down on to a gasket 13, and then soldered to the container throughout its periphery 14. The container is preferably evacuated and then filled with dry gas at atmospheric-pressure. Specification 598,675 is referred to.
Patent GB-1388758-A (GB)
Title: Manufacture of continuous products consisting of particles and a binding agent
IPC: B30B11/00
Filed: 1972-06-01
Abstract: 1388758 Transversely compressing extrusion die SWISS ALUMINIUM Ltd 1 June 1972 [24 June 1971] 25748/72 Heading B5A A composition comprising binder and small particles, e.g. fibres, or quartz sand, fireclay or aluminium oxide for fire resistant bricks, or carbon or graphite for electrodes for electrolysis of aluminium oxide in a fused fluoride bath, is intermittently extruded as a continuous length through the polyhedral section passage of a mould 10, which is defined by walls which repeatedly slide in contact against each other to move synchronously outwardly and inwardly perpendicular to the direction of extrusion, to effect compression of the composition perpendicularly to the direction of extrusion. The mould 10 comprises a parallel wall outlet, and a tapering wall inlet end into which the composition is delivered by a compacting worm, under a continuous pressure 15 which serves both to prevent reverse flow of the composition when the mould walls move inwardly in the tapering inlet end, and to effect displacement of the mould walls in their outward movement during extrusion of the composition. The die passage may be defined by six, or by four walls as in Fig. 8, which are respectively tapered and parallel at 13 and 14 and which are mounted to effect their inward and outward movement for displacement in guides 22 of a frame 21, in the directions 17 and the reverse directions. Figs. 5 and 6, show the mould walls respectively in their outer and inner positions, with the successive increased hatchings of the extrudate each indicating the extent of extrusion intermediate each perpendicular compression, and the hatchings at 19 and 20 indicating incompletely prependicularly compressed material from the commencement of extrusion, when the die outlet is closed by a plate on the first perpendicular compression. The movement of the mould walls may be effected as a vibratory movement with small displacement, e.g. 0À5 mm., at high frequency, e.g. 10 Hz, producing a carbonaceous extrusion of 1À6 tons per cu. m. A stated composition for anodes for aluminium fusion electrolysis comprises petroleum coke of various grain sizes in stated percentages, with 17% coal tar medium, hard pitch binding agent, the composition being introduced into the extrusion die at 125 to 175 C., with the die maintained at that temperature. Pitch coke may be used for cathodes of aluminium electrolysis cells. Petroleum pitch may alternatively comprise the bonding agent. The carbon should be amorphous with minimum impurities (10% anthracite, or 0À5% in pitch or petroleum coke).
Patent GB-616128-A (GB)
Title: Improvements in or relating to submerged electrical pumping plant
IPC: H02K5/132
Filed: 1946-08-28
Abstract: 616,128. Centrifugal fans; stuffing-box substitutes. RUPPEN, A. Aug. 28, 1946, No. 25805. Convention date, March 6, 1943. [Classes 110 (i) and 122 (v)] A submersible pump housed in a watertight bell 1a, is characterised in that the driving motor 5 is carried by a central tubular support 6 dividing the upper compartment of the bell 1a into two chambers, one chamber being centrally disposed and in direct connection with the inlet 10 of the pump 8, the other chamber being annularly disposed and in direct connection with the compartment housing the motor. The two chambers are separated by a mechanical or hydraulic seal 23, 24 and means are provided to ensure that no difference in pressure occurs between the two chambers. This object is achieved by the provision of a U-tube 25, Fig. 1, or by the auxiliary chamber 26 and connecting conduits 27, 28, Fig. 2. The volume of air in the annularly-disposed chamber may be limited by means of the solid lining 29, Fig. 2, or by increasing the diameter of the tubular support 6. When pumping is stopped the level of liquid in the discharge pipe 12 falls to the level N-N of the immersion liquid and air is admitted by snifting valve 17 to the annular space surrounding the tube 15. When pumping is resumed the air in this space is discharged through tubes 19, 22 to the inside of the tubular support 6 to maintain sufficient air therein. The floating valve 21 prevents the discharge of liquid through the tube 22 to the interior of the support 6.
Patent GB-585943-A (GB)
Title: A new or improved wood-worker's scriber
IPC: B25H7/04
Filed: 1945-10-04
Abstract: 585,943. Scribers. OSBORN, L. J. Oct. 4, 1945, No. 25894. [Class 61 (ii)] A wood-worker's scriber comprises a base-plate A with a pair of uprights B at the rear supporting a bearing C through which the rear end of the pencil D passes and a slotted segment H at the front of the plate for an adjustable bearing which supports the front end of the pencil, the latter bearing being clamped anywhere along the slot by a nut J and the pencil clamped therein by a screw F.
Patent GB-1306156-A (GB)
IPC: B60D1/02
Filed: 1970-05-29
Abstract: 1306156 Steering trailers; vehicle trains; coupling trailers TOKYO SUEHIRO HAND TRUCKS MFG CO Ltd and OHDENSHA ELECTRIC CO Ltd 29 May 1970 [9 March 1970] 26043/70 Headings B7H and B7T In a trailer adapted to be manually coupled to similar trailers to form a train, two wheel axles 13 pivoted to a chassis 11 are coupled by a diagonal tie rod 14, a steering lever 15 is rigidly secured at right angles to each wheel axle 13 and a towing lever 16, in which a third lever 18 can be located in extended or retracted positions by pins 25; is pivoted below each wheel axle pivot at 17. Connection between the towing lever 16 and the steering lever 15 can be made when these are aligned by a rod 38 engaging an opening 45 in a plate member 44 attached to the outer end of lever 15. Engagement and disengagement of said rod and opening is made by a slidable cam plate 35 having a sloped portion 37 engageable with a rounded portion 42 at the upper end of a slot 40 in rod 38, which is biased downwardly by spring 39. Connection to another vehicle is made by a member 20 which is pivoted to the lever 18 by a pin 19. In use, the steering and towing levers at the front of each trailer are connected; whereas the corresponding levers at the rear of each trailer are left unconnected. To tow the train in the opposite direction, appropriate connection and disconnection of the towing and steering levers is made.
Patent GB-1383111-A (GB)
Title: Portable multiple tool
IPC: B25F1/00
Filed: 1972-06-05
Abstract: 1383111 Combination tools; hand tool handles L KIRKEL 5 June 1972 26074/72 Headings B4B and B4K [Also in Division A1] A combination hand tool comprises two pivoted elements 4, 6 having handle arms 9, 10 and constituting, e.g. an axe 1, a pick 2 and/or pair of shearing blades 12, 13, a spade member 3 being attachable by means of a plate 17 formed with securing means 18-20 co-operable with means 22-24 on the elements 4, 6. For attachment, the elements 4, 6 are pivoted into open position and are inserted into slots 19a of the plate 17, faces 22a, 23a of the element 4 engaging one side of upstanding portions 18b of the plate 17, while hooks 24a, 24b of the element 6 engage hooks 21a, 21b from the other side on closing the elements 4, 6 together. A rotatable catch (11), Fig. 3, (not shown), allows locking of the arms 9, 10 in fixed relationship. Alternatively, the elements 4, 6 may be engaged in slots 19c generally perpendicular to the spade member 3 to provide a hoe, or in slots 19b for transport. When using the shearing means 12, 13 a retractable stop (15) may be employed to prevent the arms 9, 10 from closing completely to a parallel position.
Patent GB-587654-A (GB)
Title: Improvements relating to controlling means for fluid operated machine tools
IPC: B23Q5/26
Filed: 1944-12-29
Abstract: 587,654. Actuating machines; gearcutting. GEAR GRINDING CO., Ltd., and ORCUTT, A. H. Dec. 29, 1944, No. 26120. [Class 83 (iii)] [Also in Group XXIII] In a machine-tool such as a gear-cutting machine in which a work or tool slide is reciprocated by the plunger of a hydraulic cylinder, a tappet which is engaged by dogs on the slide to reverse or stop the reciprocation is automatically adjusted in position according to the speed of traverse of the slide so that the amount of overrun at the end of the stroke will be independent of the speed. The slide is reciprocated by a hydraulic plunger (not shown), whose speed is regulated by two rotary valves controlled by levers m tied together by a link p and actuated by a link l from a hand lever n. A cam r is attached to one of the levers m and engages the lower end of a lever s whose upper end is connected by a link u to a horizontal lever v carrying a pivot v<1> for a lever w. A tappet x on the lever w is engageable by dogs o on the slide so that at each end of the stroke the lever w will be rocked in one or the other direction to move a bar z connected to the reversing valve and thus effect reversal &c. The tappet x is connected to the bar z through a transverse slide y, the action being such that when the lever n is moved to adjust the traversing speed, the cam r will cause the lever v to be rocked and so displace the tappet towards or away from one of the dogs o. The dog will accordingly meet the tappet at an advanced or retarded instant and the greater over-run due to a higher speed will thus be compensated for and the stroke will always terminate at the same point.
Patent GB-728591-A (GB)
Title: Improvements in or relating to belting and the manufacture thereof
Inventor: WARREN FREDERICK WILLIAM
IPC: F16G1/04
Filed: 1951-11-08
Abstract: 728,591. Coated and laminated woven fabrics. DUNLOP RUBBER CO., Ltd. Oct. 7, 1952 [Nov. 8, 1951], No. 26143/51. Addition to 565,496, [Group IX]. Class 140. [Also in Group IX] Conveyer or transmission belting comprises one or more layers of the fabric described in the parent Specification, to which are applied several coats of a composition containing a polyvinyl compound, each coat being separately fused and the layers (when more than one are used) being then given another coat and fused together. The composition may contain polyvinyl chloride, or a copolymer thereof with vinyl acetate and/or vinylidene chloride, with a plasticizer, e.g. a mixture of tricresyl phosphate and dioctyl phthalate, and, if desired, rubber. Specification 610,905, [Group IX], is referred to.
Patent GB-718382-A (GB)
Title: Powder metallurgical method of shaping articles from high melting metals
IPC: F01D5/28
Filed: 1951-11-09
Abstract: 718,382. Compression-moulding machines for compacting metal powder. SINTERCAST CORPORATION OF AMERICA. Nov. 9, 1951 [Nov. 25, 1950], No. 26254/51. Class 87 (2) [Also in Group XXII] In a method of making heatresisting metal articles, such as parts of gas turbines, in which powder of refractory metals, alloys or metallic carbides is. compacted under pressure, sintered and then infiltrated with a lower melting-point metal, the powder comprises grains substantially all less than 20 microns and is compacted so as to have a pore volume between 37 per cent. and 59 per cent. before sintering. The powder is fed into a mould 15 with a tapered exterior fitting within a holder 16 which is vertically movable in a press bed 18 within the limits determined by a lower flange of a support 17 and by a clamping ring 19 bolted to the bed. Compacting is effected by a hydraulic ram 30 which enters the mould through a cap 26 and spacer ring 28. To the bottom of the holder 16 is bolted a guide 21 for a spring 23 which normally retains the holder in its lower position but which allows the mould to be vibrated by the action of a hydraulic ram 32. After the powder has been compacted, the mould with the article therein is removed and conveyed through a sintering furnace. The porous sintered body is then impregnated with molten metal.