baber/WOPTO huggingface dataset:
Patent GB-951682-A (GB)
Title: Improvements in or relating to pressure vessels
IPC: F15B1/24
Filed: 1961-09-05
Abstract: 951,682. Hydraulic accumulators. GREER HYDRAULIC Inc. Sept. 5, 1961 [Dec. 28, 1960], No. 31815/61. Heading F1P. [Also in Division F2] An hydraulic accumulator comprises a cylindrical casing 11 having a cylindrical opening 12 at one end and its other end 13 closed and substantially hemispherical, a piston 31 slidable in the casing, a plug 15 releasably secured in the open end of the casing and having a fluid port 151, and a fluid port 14 in the closed end of the casing. The closed end 13 is integrally formed with the casing by a drawing or forging operation and the open end 12 has a screw thread which receives a sleeve 24 arranged to abut the plug 15. The sleeve is provided with conformations 20 which are for the insertion of a tool when the plug is to be removed and can only be reached to unscrew the sleeve when a locking ring 23 is removed from the end of the plug and the pressure in the accumulator is sufficiently low to permit the plug to be moved away from the sleeve. The plug has a hemispherical recess 42 shaped to conform with the hemispherical end 34 of the piston 31 which has two annular projections 35, 36 provided with seals 37 engaging the wall of the casing, a passage 39 permitting hydraulic fluid to enter the space between the seals to prevent extrusion thereof. A reinforcing ring 30 is provided in the end of the piston which is bevelled at 43 to prevent jamming of the piston when it engages the hemispherical end of the casing.
Patent GB-947460-A (GB)
Title: Brake for spinning and twisting spindle
IPC: D01H7/22
Filed: 1962-08-20
Abstract: 947,460. Braking devices. J. J. KEYSER. Aug. 20, 1962 [Aug. 23, 1961], No. 31826/62. Heading F2E. [Also in Division D1] In a braking-arrangement for a spinning &c. spindle, the shank of a rotatable spindle carries a whorl 4 with an annular skirt 5 and a brake shoe is constituted by the head 12 of a pivot 11 arranged below the skirt parallel to the spindleaxis and prevented from moving axially relatively to the skirt, the head being rotatable from a position where the brake-shoe is spaced from the skirt to one on which it frictionally engages the skirt. The pivot 11 is mounted on a flange 6 of a spindle bearing-housing 1 and is positioned by a spring 18, a circular part of which embraces the housing and legs 18<SP>11</SP> of which engage flats on the pivot. Brake shoes one 15 operating inside and the other 14 outside the skirt, are provided by bifurcating the head and an operating handle on the form of a plate 16 is also provided. The plate may be replaced by a laterally-extending member for kneeoperation, and the shoe 14 may be extended upwardly to protect the operator against contact with the whorl. In another form, the operating- handle may be of U-section to embrace the spindle rail 3, the flange 6 being dispensed with, and have a spring between it and the outer face of the rail, while the pivot and the housing are located by upper and lower Fpring discs in grooves in the spindle housing. Finally the operating handle may be below the spindlerail 3 and only one brake-shoe is provided, acting internally, while the pivot and the housing are located by a spring such as 18 below the rail and a spring-disc above it.
Patent GB-604611-A (GB)
Title: Pallet truck
IPC: B62B3/06
Filed: 1945-11-26
Abstract: 604,611. Lifting trucks. TRIGGS, W. W. (Yale & Towne Manufacturing Co.). Nov. 26, 1945, No. 31903. [Class 108 (i)] A truck with an elevating platform 13 of U-shape and having a standard 12 is connected to a lifting head 11 by parallel links 31, 35 for movement by a hydraulic cylinder 20 and ram 22 pivoted to the lifting head 11 at 21 and to the standard 12 at 23 respectively. The hydraulic cylinder is operated by a pump lever 19, Fig. 1, of a pump 18, a release valve being operated by a lever 65 when the platform is to be lowered. The standard 12 carries intermediate wheels 53 which rise and fall with the platform and the latter has wheels 36 carried by arms 37 pivoted to the platform at 37a, the wheels being lowered into contact with the ground when the platform is raised and retracted when the platform is lowered to allow the platform to pass over the pallet floorboards 52, Fig. 2. Each wheel 36 is operated by a rod 39 pivoted to the arm 37 and to a link 42 at 41, the pivot 43 of the link 42 being adjustable in a bracket 45 on the head 11. The rod 39 and link 42 form a toggle which is connected to the standard 12 by a link .47, whereby upward movement of the standard 12 breaks the toggle to lower, the wheel 36. The wheels 53 are normally maintained in contact with the ground by springs 55, Fig. 2, acting between the head 11 and standard 12. In a modification the rod 39 is replaced by a wire rope, the link 47 being replaced by a pulley on the standard 12, whereby upward movement of the standard 12 with the pulley tensions the rope and lowers the wheel 36 against the tension of a spring. A motorized truck of the type shown in Specification 563,748, [Group XXXI], may be used. Specifications 554,532, 575,926 and 575,955 also are referred to.
Patent GB-1441071-A (GB)
Title: Mouldings made of at least partially hydrolyzed ethylene- vinyl acetate copolymer
Inventor: TAKIDA HIROSHI
IPC: C08L31/04
Filed: 1974-07-19
Abstract: 1441071 Blends of vinyl acetate copolymers and polyester-polyether block polymers NIPPON GOHSEI KAGAKU KOGYO KK 19 July 1974 32000/74 Heading C3P Mouldings comprise a blend of an at least 90 mole per cent hydrolysed ethylene/vinyl acetate copolymer of 20-50 mole per cent ethylene and 50-80 mole per cent vinyl acetate, and 2-100 parts by wt. per 100 parts by wt. of vinyl acetate copolymer, of a polyesterpolyether block copolymer which has a crystalline melting point of 150-230 C. and an impact resilience of not less than 50% (as measured according to the Physical Testing Methods for Vulcanized Rubber in JIS K 6301. The crystalline melting point should be measured with a polarizing microscope. The block polymer usually comprises a polyalkylene oxide block and a polyester block derived from one or more dicarboxylic acids and diols.
Patent GB-1253505-A (GB)
Title: Metal coating carbon substrates
Inventor: HILL JAMES SPENCER
IPC: C23C18/52
Filed: 1970-07-01
Abstract: 1,253,505. Electroless plating. ENGELHARD MINERALS AND CHEMICALS CORP. July 1, 1970, No.32024/70. Heading C7F. A carbonaceous substrate, e.g. graphite pellets, is electroless plated with Ni, heated to 800 to 1100‹C. in a non-oxidizing atmosphere, cooled, electroless plated with e.g. Cu, Ni, Cr, Fe or Co, and finally heated to 500 to 700‹ C. The substrate may be first sensitized and activated with stannous and palladium chlorides. A Ni plating bath may comprise (g./l.) NiSO 4 .6H 2 O 17, Na H 2 PO 2 .H 2 O 24, sodium acetate 41, and acetic acid 30. A Cu plating bath comprises (gm) potassium sodium tartrate 79, copper sulphate 28, NaOH 20, sodium carbonate 32, water 1‹5 litres, formaldehyde 10 c.c.s.
Patent GB-320787-A (GB)
Title: Improvements in or relating to spring suspension of motor road vehicles
IPC: B60K17/30
Filed: 1928-11-03
Abstract: 320,787. Birmingham Small Arms Co., Ltd., and Hulse, F. W. Nov. 3, 1928. Springs, arrangement of.-In tranverse spring suspensions for motor vehicles particularly of the kind in which the front wheels are driven, and also supported by four transverse springs arranged in two pairs in horizontal and vertical planes, the outer end of the springs are rigidly fixed to the ends of horizontal hinge pins which are rotatably carried in bearings formed in the swivel carrier. The swivel carrier 1, is provided with upper and lower sockets 2 into which fit the swivel pins 3 of the swivel casing 4 which contains the bearings for the stub axle 5, and also constitutes a casing for the universal joint. Bearing bushes 8 are provided in the swivel carrier, in which the horizontal hinge pins 9 are rotatably carried. The ends of the hinge pins are reduced in diameter, to fit the eyes 13 formed on the ends of the transverse springs 10, turning movement of the spring on the pin being prevented by the nut and abutment 12. The bearing bushes and the swivel pins are lubricated by oil forced through an oil duct 17, an annular passage 15 and a passage 19.
Patent GB-335090-A (GB)
Title: Improvements in spring blind rollers
IPC: E06B9/90
Filed: 1929-10-22
Abstract: 335,090. S÷derquist, W. O. N. Oct. 22, 1929. Roller blinds.-In a spring roller for a window blind, the spring, which is attached at one end to the roller, is fastened at the other end to an anchor held stationary in a supporting bracket and carried in the roller solely by a single bearing member at the end thereof. In the construction shown in Fig. 2, the inner end of the spring 7 is fastened by a pin 22 to the roller 2 and its outer end secured upon the flared end 17 of a hollow sleeve 15 rotatably supported by a disc 11 secured by two rivets 12 to the roller end cap 8, a pawl on each rivet and recess in the sleeve forming the usual centrifugal catch mechanism. The projecting part of the sleeve is slotted to provide a pair of lugs 19 to engage a pair of slots in a wall bracket to support the sleeve and prevent its rotation. In a modification, the hollow sleeve is carried by a, cup-shaped member in place of the disc 11 and the end of the spring is bent to engage a slot in the sleeve.
Patent GB-211088-A (GB)
Title: Improved installation for producing heating effects by means of a centrifugal multistage compressor
IPC: F04D29/58
Filed: 1922-10-09
Abstract: 211,088. Vianello, E. Oct. 9, 1922. Vapours, utilizing for effecting further evaporation.-In a hot-liquid heating installation for heating buildings for boiling or evaporating liquids and for similar purposes, return hot liquid from the circulating system is introduced in a finely atomized condition together with saturated vapour from an evaporator, condenser or other source into a multistage turbo-compressor and subjected to an adiabatic compression, the proportions of liquid and vapour being such that during the compression condensation of vapour occurs with a corresponding increase in the temperature and pressure of the mixture until finally the mixture may be completely liquefied before its discharge from the compressor for recirculation through the system. In the case of a mixture of water and steam the proportion by weight of water must be at least 60 per cent. In a distilling apparatus as shown in Fig. 4, the hot liqued ejected from the compressor 88<1> by the pipes 89 is employed solely for evaporating purposes, passing to the tubes of the evaporator through collectors 81, 81<1>. The liquid to be distilled i.s forced through atomizers 85 by means of a pump 84 and sprayed against the surface of the tubes, the vapour formed being drawn into the compressor through a pipe 82. The vapour is mixed in the compressor with a quantity of hot liquid returned from the collectors 81, 81<1> through a pipe 86, valves 87 and atomizers 88, and is condensed in passing through the compressor. A proportion of the liquid leaving the collectors 81, 81<1> passes as distilled liquid through the pipe 90 to a receiving tank.
Patent GB-1501655-A (GB)
Title: Sealing bars for rotary piston engines
IPC: C23C4/08
Filed: 1975-07-31
Abstract: 1501655 Rotary positive-displacement fluidmachines GOETZEWERKE FRIEDRICH GOETZE AG 31 July 1975 [14 Aug 1974] 32129/75 Heading F1F [Also in Division B3]  A method of making a sealing bar (e.g. of cast iron or steel) for a piston of a rotary engine whose cylinder walls are of hyper-eutectic Al-Si alloy comprises coating the bar with Cr or Cr alloy containing 3-80% alloying elements by welding (e.g. plasma-arc welding). Elemental powders of Cr and 3 to 80 total weight per cent alloying element, e.g. Fe, Mn, Ni, Co, Mo, Ta, Nb, W, Zr, Ti may be mixed and then sprayed into an atmosphere of O 2  and/or N 2  and/or H 2  in order to charge the alloy with these gases before being placed on the sealing bar and welded thereto by a plasma-arc technique. A preferred gas content is 0À01 to 0À5% H 2 , 0À005 to 0.05% N 2  and 0À5 to 2À5% O 2  (by weight). For steel sealing bars, 0À5 to 7À5%C and/or Si may be included in the Cr alloy and 0À5 to 7À5% B may be included in order to impose the running properties of the bar.
Patent GB-410775-A (GB)
Title: Improvements in closures for jars, bottles and like containers
IPC: B65D41/04
Filed: 1932-11-14
Abstract: 410,775. Stoppers for jars. VACSEAL CONTAINERS, Ltd., CANTOPHER, W. J., OGILVIE, J. M., and CRONSHAW, H. B., Westminster House, Great George Street, London. Nov. 14, 1932, No. 32135. [Class 125 (iii).] A cap for a jar &c. has a pair of resilient packings 7, 8 and is free to move axially of the jar &c. during vacuumizing so that the cap can be drawn down on to the packings. The packing 8 has a tab 10 by which it can be removed to break the vacuum, but when it is desired to re-seal the jar, a slight turn brings interrupted threads 3 into co-operation with recesses 5 to compress the packing 7 on the mouth of the jar. The packings 7, 8 lie in parallel planes, and a flange 6 is provided on the lower edge of the cap for co-operation with the packing 8. A disc 11 of waxed paper may be inserted in the cap.
Patent GB-923221-A (GB)
Title: A water valve device for drinking vessels
IPC: B67D1/12
Filed: 1960-09-19
Abstract: 923,221. Float-operated valves. H. S. FERREIRA. Sept. 19, 1960 [Oct. 8, 1959], No. 32176/60. Class 135. A device for controlling the water level in a drinking trough comprises a float 1, a valve 5 controlled by the float, a pipe connection 12 leading to an outlet in the device and means 13, 14 for hooking or clamping the device on to the trough. The means 13, 14 is shown in the form of spring blades but may be replaced by a nut provided with inlet apertures and screwed on to the body of the device in place of a part 10. The device may thus be clamped on to a hole in the bottom of a bucket for supplying the trough. A wire hook 7 mounted in a recess 8 or 9 may be used to hold the float in its raised position and a number of holes 3 permit the position of the float to be adjusted in relation to its arm 2.
Patent GB-943803-A (GB)
Title: Apparatus for the continuous introduction and discharge of solid substances
IPC: B65G53/46
Filed: 1960-09-19
Abstract: 943,803. Pneumatic conveyers. DEUTSCHE GOLD-UND SILBER-SCHEIDEANSTALT. Sept. 19, 1960 [Sept. 18, 1959; June 21, 1960], No. 32178/60. Heading B8A. [Also in Divisions B1 and F2] Solids, sludge-like materials, and liquids with suspended lumpy materials, are conveyed under pneumatic pressure from a hopper 13 through a rotary valve device comprising discs 17 having apertures 171 which co-operate with sleeve valve members 161 which are resiliently urged against the corresponding disc 17 by respective springs 162. In a modification (Fig. 2, not shown), the disc 17 may be resiliently urged upwardly into engagement with the sleeve 161. There may be more than a single sleeve 161 in respect of each disc 17 (Fig. 3, not shown). Pressure in the device may be regulated by the admission of gas through pipes 20 which may also be used to admit heating or cooling gas. In Fig. 4 the shoot 13 is replaced by shoots 43, 44 and 45 which open into a chamber containing a mixing vane 49. Alternatively, the shoot 13 of Fig. 1 may be of enlarged form and may contain a mixing vane coupled to the shaft 18 which rotates the discs 17. Each sleeve 16 may be constructed with seals (Fig. 6, not shown).
Patent GB-1091436-A (GB)
Title: Improvements in and relating to rotary regenerative heat exchangers
Inventor: HRYNISZAK WALDEMAR
IPC: F28D19/04
Filed: 1965-07-28
Abstract: 1,091,436. Thermal regenerators. CLARKE, CHAPMAN & CO. Ltd. July 28, 1965, No. 32181/65. Heading FtK. In a thermal regenerator having a rotor 1 in this form of a disc made of a glass ceramic or other heat storing material of relatively low coefficient of expansion, slits 2a, 2b are formed in the two end faces of the disc to permit differential expansion under operating conditions. The slits extend radially or approximately so and penetrate the disc material in the axial direction from each end face. The slits on opposite sides of the disc are staggered and in an annular matrix the slits on each face extend radially into the disc material alternately from the outer peripheral face and the inner peripheral face of the annulus.
Patent GB-435004-A (GB)
Title: Improvements in and relating to dental matrix holders
IPC: A61C5/85
Filed: 1934-11-09
Abstract: 435,004. Dental matrix holders. HARPER, W. E., 6541, Yale Avenue, Chicago, U.S.A. Nov. 9, 1934, No. 32268. [Class 81 (ii)] A dental matrix holder comprises a pair of pivoted arms each having a pair of resilient jaws, comprising converging walls divided into horizontal sections, secured to its free end, and a supplemental wedge member movably positioned within each of said pair of jaws. The arms 1 are pivoted at 2 and held closed by a spring 3. The free ends are turned to form circular apertures 11, Fig. 4, which receive the shanks 12 of members 13 secured by washers 14 and nuts 15. Each member 13 is slotted at 16 to receive the flat portion of a flexible jaw 18, Fig. 7, which is secured by a wedge member 20, the slotted shank 21 of which passes through apertures in the member 13 and jaw 18. The jaw apertures 19 are positioned below the jaw centres. A matrix band is positioned between two teeth and the jaws 18 also positioned with the band between them and the cavity. A clamping bar 4, slotted to receive the arms 1, and cut away to permit removal and reversal, is provided with a screw 6 for actuating the arms. The jaws 18 which are slotted at 18a shape the matrix band to the tooth. The shanks 21 of the wedge members 20 can then be pressed inwardly to force the jaws and therefore the matrix against the tooth. The holder can be removed by removing the bar 4 and forcing apart the arms 1 by rubber dam forceps, the ends of which are positioned in notches 1<a>.
Patent GB-311829-A (GB)
Title: Improvements in or relating to the manufacture of wads for cigarettes, cigars, tobacco pipes and the like
IPC: A24D3/02
Filed: 1927-12-01
Abstract: 311,829. Aivaz, B. Dec. 1, 1927. Pleating.-An apparatus for forming filter wads for cigars, cigarettes, tobacco pipes, &c. comprises means for creasing or folding a strip of material transversely into regular or irregular waves, removing the strip from the creasing or folding mechanism, and then compressing it to the desired cross-section for insertion in an enclosing tube or wrapper. The material used may be a composite one, such as that described in Specification 236,957, [Class 130, Tobacco], or materials such as referred to in Specification 311,827, [Class 130, Tobacco], and described in Specifications 311,831; and 311,832, [Class 130. Tobacco]. In the apparatus shown, a strip a of material is cut off and fed over a table b having a slot in which are disposed parallel needles c<1> - - c<4> carried by a fixed support j. The material is depressed between the needles c<1>- - c<4> by needles d<1> - - d'" the stems of which slide in fixed guides f and are actuated through levers h by cams g on a rotary shaft. The central needle d<3> is first depressed, then the pair d<2>, d<4>, and finally the outer pair d', d<5>. A cam-actuated stripping plate i pushes the folded material into position between a pair of jaws k, k', which are actuated through levers n, n' by cams o on a shaft o' and compress the folded material into a circular,- square, or other wad as shown in Fig. 10. A table p carrying the compressing mechanism is then raised by a cam p<1> into line with a receiving tube q, and the wad is transferred into an enclosing tube or wrapper by a plunger r actuated by a cam r' and lever r'. In a modification, Fig. 12, both sets of folding needles s<1>, t', &c. are stationary and the needles are bent as shown, the material a being moved laterally on the needles by means of a comb w to effect the folding, or the needles may be moved laterally while the material is held by a fixed comb. The oppositely-disposed series of needles may be symmetrically arranged and adapted to co-operate with a pair of supply spools and feeding devices; on the movement of a stripping comb in one direction, a length of strip from one supply spool is fed between the needles at one end to form the folds and to eject a folded length at the other end, while on the movement of the comb in the other direction a length of strip from the other spool is fed in and ejects the previously folded length.
Patent GB-600596-A (GB)
Title: Improvements in and relating to coin holders for prepayment mechanisms for gas and electricity meters and for like purposes
IPC: G07F15/02
Filed: 1945-11-30
Abstract: 60 0,5 9 6. Prepayment mechanism for meters. UNITED GAS INDUSTRIES, Ltd., CHARLES, A., and SIMONS, S. H. Nov. 30, 1945, No. 32454. [Class 27] Coin-discharging mechanism.-A coin is retained in the rotatable pocket 4 of a prepayment meter by means of a closure plate 12 slidable in a support 13 on the pocket which assists it to resist the pressure of the coin. Towards the end of the forward rotary movement, a pin 20 on the closure plate engages a fixed stop 19 which moves it back against the action of a spring 17 to uncover the pocket and release the coin, the movement of the pocket then being terminated by engagement of a lug 14 on its carrier plate 5 with a second stop 22 integral with stop 19. In the form shown, the lug 14 forms an additional sliding support for the closure plate, but in a modification the additional support is a pivotal one on the carrier plate 5. Price-changing mechanism.-The initial position of the pocket is adjustable to vary its extent of movement and hence the amount of commodity delivered for each coin. For this purpose the front slot plate is angularly adjustable in a seating ring 2, and is retained in adjusted position by engagement of a fixed registration pin 26 with teeth on its periphery and an overlying retaining ring 27 secured by lugs 28 and a sealing eye 30. A lug stop 24 projects rearwardly from the front slot plate and co-operates with a radial projection 23 on the carrier plate 5 to determine its initial position.
Patent GB-849911-A (GB)
Title: Improvements relating to gyratory mechanisms
IPC: H02K33/12
Filed: 1956-10-25
Abstract: 849,911. Electric motors. PODMORE, W., and OLIVER, C. D. Jan. 24, 1958 [Oct. 25, 1956], No. 32492/56. Class 35. A gyratory motion, e.g. for sieving, spiral elevators, and grinding-mills, is produced by the successive energization of electromagnets disposed around the element to be gyrated by means of polyphase alternating current. In the form shown, a platform 14 is supported by radial springs 18 and displaced by electromagnets 13 in succession under the influence of polyphase current supplied at terminals S. Instead of the springs 18, a ring of vertical flexible legs may be used to support the platform. To obtain a vertical oscillation, the electromagnets are mounted beneath the platform at 120 degrees spacing, and vertical springs are provided.