baber/WOPTO huggingface dataset:
Patent GB-1465370-A (GB)
Title: Pressure sensitive adhesive strands
IPC: C09J7/02
Filed: 1974-03-25
Abstract: 1465370 Laminated rubber-plastics trim strips PROTECTIVE TREATMENTS Inc 25 March 1974 [4 April 1973] 13133/74 Heading B5N [Also in Divisions B1-B2] A pressure sensitive composite strand, e.g. for attachment to a plastics trim strip for automobiles, consists essentially of a tacky, permanently compressible, non-porous base strand of low resilience constituted of elastomeric material compounded with 0À45 to 2À5 parts of liquid plasticizer of low volatility and at least 0À93 parts finely divided solids per part of elastomer which includes 0À5 to 2À5 parts per part of elastomeric material, of finely divided bulk fibrous solids, or of solids that form thixotropic mixtures with the liquid plasticizer, the base strand being coated on one or both sides with pressure sensitive adhesive and being permanently deformable by pressure above 15 pounds per square inch but exhibiting negligible flow at 0À6 pounds per square inch. Such a strand may be attached to a polyvinyl chloride or cellulose acetate butyrate trim strips. The plastics material may encapsulate a metallic or plastics strip or film. The exposed adhesive face may be protected by silicone-coated paper. Suitable pressure sensitive adhesives include synthetic rubber, rosin or various hydrocarbon resins, polyterpene resins, coumarone-indene resins and other tackifiers. Other adhesives include polymers of an acrylic acid ester of a non- tertiary alcohol having at least 4 C atoms with 3 to 12% of the acrylic acid, methacrylic acid, acrylamide, methacrylamide, itaconic acid, acrylonitrile or mixtures thereof. Suitable base materials include butyl rubbers, halogenated butyl rubbers, cross-linked butyl rubbers, polyisobutylene rubbers, ethylenepropylene rubbers, chlorosulphonated ethylene, thermoplastic block copolymers of butadiene and styrene, polyisoprenes and thermoplastic rubbers. The butyl rubbers may be copolymers with diolefins, isoprene, divinyl aromatic compounds, e.g. divinylbenzene and acrylonitrile. Suitable solids include asbestos, fibrous talc, wollastonite, glass fibres, nyon fibres, silica, carbon black, bentonite, titanium dioxide, calcium carbonate, calcium oxide and zinc oxide.
Patent GB-1004476-A (GB)
Title: Improvements in or relating to capacitors and methods of making capacitors
IPC: H01G4/30
Filed: 1962-04-06
Abstract: 1,004,476. Capacitors. M. MOHANLAL, P. M. JHAVERI, S. M. JHAVERI, and N. M. JHAVERI, [trading as M. MOHANLAL & CO.]. April 6, 1962 [April 29, 1961], No. 13330/62. Heading H 1M. In a capacitor comprising a sheet of mica 1 (Fig. 2) with a coating of metal, e.g. silver, 2 on each surface, terminal conducting wires 3 are attached to the coatings by layers of solder including, e.g. 30 to 75% tin, 25 to 70% lead and 0.125 to 5% silver by weight, which is applied by dipping the coated sheet 1 and the wires 3 in molten solder whilst the wires are held in place by wooden, or aluminium, tongs. The silver may be applied to the mica by coating its surfaces with a mixture of silver oxide, lacquer and a binder, and heating it to reduce the oxide to metal and dissipate the lacquer and binder. The capacitor may comprise a stack of mica sheets with silver coatings on their surfaces arranged to effect a series connection, the two outermost coatings having terminal wires attached thereto by solder. Alternatively, the capacitor may comprise a stack of mica sheets 5 (Fig. 3) having silver coatings which extend around their ends as at 7 and are separated by gaps 8 to effect parallel connection with terminal wires 9 through layers of solder 10. The capacitor may be encapsulated in resin (not shown).
Patent GB-754965-A (GB)
Title: Machine for forming a web from sheets or strips
IPC: B65H37/04
Filed: 1954-05-07
Abstract: 754,965. Feeding sheets. INTERNATIONAL BUSINESS MACHINES CORPORATION. May 7, 1954 [May 12, 1953], No. 13374/54. Class 117. [Also in Groups VIII, XV and XVI] In a machine for forming a record web from a series of overlapping record sheets (see Group XVI), the sheets are held in a magazine comprising a base 3, two front posts 4, adjustable sides 7, and a rear wall 5 having a verticallyadjustable throat knife 6 which only allows a single sheet to be separated from the bottom of the pile. The base 3 is grooved to allow two reciprocating picker knives 9 to engage the edge of the bottom sheet to urge it through the throat, this sheet being then forwarded by rollers 42, 43 and guided by a plate 19a to abut a register stop 52. The knives 9 are loosely connected to a link 10 pivotally secured to an adjustable pivoting means 11, the link having a block carrying a roller 14 co-operating with a cam 15 on a rotatable shaft 16. The link is returned by a spring-urged plunger 17.
Patent GB-548132-A (GB)
Title: Improvements in or relating to heat insulating coverings of steam boilers and the like
IPC: F22B37/36
Filed: 1941-10-17
Abstract: 548,132. Non-conducting coverings. WALTON, P. Oct. 17, 1941, No. 13395. [Class 64 (ii)] A cover for a Lancashire boiler C comprises a series of panels or steel boxes A, in which a steel sheet is riveted to curved angle irons, the ends of which rest on the flue brickwork B. An asbestos mattress is secured below the sheet, by means of wire engaging small hooks on the inside of the sheet, or by strips extending from one angle iron to the other, or by bolts passing through the mattress and sheet. An air space is maintained between mattress and boiler. Lifting handles are provided at each end of the panel. Part of the panel at the front end of the boiler may be extended over the front of the boiler. Modified panels may be applied to tanks of rectangular cross section.
Patent GB-310809-A (GB)
IPC: F02C5/12
Filed: 1929-04-30
Abstract: 310,809. Holzwarth, H. April 30, 1928, [Convention date]. Drawings to Specification. Working-fluid supply.-In an explosion turbinethe ratio of the, scavenging pressure to the exhaust pressure is made higher than the critical pressure ratio, and the expulsion period (in seconds) is selected so as to be greater than twenty times the ratio between the explosion chamber capacity in cubic metres and the narrowest cross-section of nozzle in square centimetres.
Patent GB-368587-A (GB)
Title: Process for the treatment of rubber articles containing vegetable fibres in order to simultaneously recover their constituent elements
IPC: C08J11/20
Filed: 1931-05-06
Abstract: A process for recovering rubber and fibres from compositions, consists in treating them with rubber distillates without using acid at any stage.  The raw rubber oil distillate can be rectified and then separated into spirit, at 180-190 DEG  C. and heavy oil at 190-250 DEG  C. or over.  The rubber is first separated from the threads by treating it with raw rubber oil, with rectified oil or preferably with heavy rubber oil, at room temperature for several days, or at 100 DEG  C. for a few hours.  The rubber is then separated from the fibres by friction, and is then calendered.  The fibres are again treated until the remaining rubber is dissolved and then pressed and washed with "spirit."  The Specification as open to inspection under Sect. 91 (3) (a) comprises also the use of copal oil distillates.  This subject-matter does not appear in the Specification as accepted.
Patent GB-553408-A (GB)
Title: Improvements relating to the moulding of beams or blocks for use in reinforced concrete floors, ceilings, roofs and the like
IPC: E04C3/20
Filed: 1941-10-18
Abstract: 553,408. Moulding reinforced-concrete beams &c. PENNINGTON,.A. M. Oct. 18, 1941, No. 13424. [Class 87 (ii)] [Also in Group X] A tapered core is supported in a mould, reinforcing members are arranged around the core to assist in maintaining against collapse the walls of the cavity which will be formed when the core is withdrawn, concrete is filled into the mould around the core and is consolidated as by vibration, and the core is withdrawn before appreciable contraction of the concrete. There may be one, three or more, or, as shown, two cavities. The mould shown comprises a channel-shaped pallet 13 having a metal lining 14, upper side walls 15 held in position by dowels 16, and metal clamps 17, 18 which are tightened by means of wedges 22. The clamps 17 have arched parts 21 which constitute handles for lifting the mould. The ends of the mould are closed by pieces 23 each pierced with two holes for the reception of cores 9. The cores have a pronounced taper and do not meet in the centre, so that the resulting beam has a solid, strong centre. To assist in withdrawal of the cores, tommy-bar holes are provided in flanges on the outer ends of the cores. Vent-holes 7 in the cores admit air as the cores are withdrawn. The reinforcement comprises rods 10, 11 welded to stirrups 12, and is supported on a transverse bolt 24 which passes through the mould and holds down the inner ends of the cores. The concrete used is stiff. The beams may be laid as shown in Fig. 6 to form a floor, the inter-beam spaces being grouted with concrete. The ends of the beams may be filled with pre-cast concrete plugs. A single-cavity beam may have circular (full circle) stirrups 12.
Patent GB-1529106-A (GB)
Title: Method and apparatus for establishing a plurality of simultaneous conferences in a pcm switching system
IPC: H04J3/00
Filed: 1976-04-02
Abstract: 1529106 Automatic exchange systems NORTHERN TELECOM Ltd 2 April 1976 [23 April 1975] 13469/76 Heading H4K A pcm conference circuit is arranged to deal simultaneously with a plurality of three or more party conferences, the circuit introducing a delay of two frames. An interface and control 10 extracts from the pcm highways of the system pcm speech samples in time slots concerned with conference calls and presents the speech samples over an 8 channel serial highway to the conference circuit in isochronous (interleaved bit) form, i.e. each channel comprises 32 bits, with the first bit of each of 32 pcm words being transmitted in channel 0, and the eighth bit in channel 7 etc. The conference circuit includes two 32 word, 8 bit, RAM memories I and II, one of the memories being fed with the incoming serial bit stream during one frame, whilst information fed into the other memory during the previous frame is being processed, the units MUX, 11, 11<SP>1</SP>, enabling the 32 speech samples to be stored in the RAM's in 8 bit parallel form. The processing frame of the conference circuit is divided into eight periods, period 0 not being used. During period 1 each 8 bit word in the RAM e.g. RAM1 written during the previous frame is used to address a read only memory 14 to convert the word into a 14 bit linear PCM word, and each linear word is added to a location of an accumulator 16 corresponding to the conference to which the word relates. During period 2, the 8 bit words are again supplied to address ROM 14, but with their sign bit changed such that a 14 bit word in 2's complement form is produced at the output of ROM, 14. This word is then added to the accumulator contents value for the corresponding conference (hence effectively subtracting the word of the subscriber) and the first 8 bits of the total are written into the location of RAM I corresponding to the read 8 bit word and the remaining 6 bits are stored in a corresponding location of an additional memory RAM III. The accumulator contents remain unchanged. During period 3, the 14 bit words stored jointly in RAM I and RAM III are converted back into companded 8 bit form using compressor 18 and are fed back into the corresponding locations of RAM I. During periods 4-7 RAM III and accumulator 16 are cleared, and in the following frame the contents of RAM I are read out via interface 10 to the subscriber time slots, thereby providing each subscriber of a conference with a PCM word representing the total speech of all the other subscribers of the conference. Where the number of conferees is between 6 and 12 the ROM 14 may be enabled to produce attenuated linearly coded words. The circuit may also be switched to a public address mode by causing the ROM 14 to produce words comprising logical 1's for all except a designated speaker.
Patent GB-134797-A (GB)
IPC: B02C21/02
Abstract: 134,797. Baxter, Ltd., W. H., and Baxter, W. H. July 23, 1919. Rotary sieves.-In a machine for breaking, screening and elevating stone, ore, coal, &c., as described in Specification 23887/05, the bearings of the lower screen and elevator shaft are arranged to oscillate or to rise and fall in their supporting- brackets to prevent pieces of stone &c. from becoming wedged under the bearings. Figs. 3 and 10 show the bearings at the entrance and exit ends of the screen respectively. The bearing- blocks r, s are formed with trunnions r<1>, s<1> capable of vertical movement in slots in the side members of the hangers or brackets t, u. The bracket, t is bifurcated, and the slots x therein have side extensions l to enable the trunnions to be inserted. The block r is closed at one end to form an oil chamber 4. The shaft e passes completely through the block s.
Patent GB-135445-A (GB)
IPC: F23D14/30
Abstract: 135,445. Todd, J. F. July 10, 1919. Mantle accessories; flame-deflectors.-A baffle is arranged within the end of the mantle of an inverted incandescent burner and is carried by a stem having a clip adapted to grip on or in the burner mouth, the stem being preferably twisted to impart a whirling motion to the gaseous mixture. In one form, a preferably dish-shaped baffle 7, Fig. 3, is secured to a metal strip shaped as shown in Fig. 2 by means of a projection 5 riveted to the baffle 7. The part 2 of the strip is bent to form a spring ring for engaging the burner mouth and the part 1 is twisted. In a second form, the baffle 13, Fig. 5, the stem 11, and the gripping-arms 8, 9 are formed from a metal blank.
Patent GB-1521001-A (GB)
Title: Card-clothing
IPC: D01G15/86
Filed: 1976-04-06
Abstract: 1521001 Flexible card clothing ENGLISH CARD CLOTHING CO Ltd 21 March 1977 [6 April 1976 18 Sept 1976] 13798/76 and 38754/76 Heading DIN Flexible card clothing is manufactured by mechanically introducing air into a p.v.c. compound to form foam 18 which is applied to a fabric 10 to which it is fused in a layer 16, a layer 24 of sealing material being applied to the foam surface and the thus formed composite face being combined with a foundation back 34, card clothing wires 42 being inserted to project from the surface layer of the foundation 40. The expression p.v.c. compound includes copolymers of polyvinylchloride and suitable densities of foam are specified. The surface of fabric 10 (e.g. cotton) is sealed with latex 12 prior to applying the p.v.c.. The foamed p.v.c. is fused in an oven 22 and the sealing layer 12 is non foamed p.v.c. The foundation back 34 is four layers of cotton or linen bonded by natural rubber adhesive. The surface layer may alternatively be p.v.c. copolymer or polyurethane and may include a silicone. The sealing coat 12 may alternatively be latex, nitrile latex or a p.v.c. plasticiser system. Suitable thicknesses of the various layers are given.
Patent GB-695956-A (GB)
Title: Improved machine and method for the production of blasting detonators and improved blasting detonators
Inventor: BISHOP PHILIP COOKE
IPC: F42B3/198
Filed: 1950-06-02
Abstract: 695,956. Blasting detonators and annaratus for finishing detonators. IMPERIAL CHEMICAL INDUSTRIES. Ltd. June 1, 1951 [June 2, 1950], No. 13830/50. Class 9(i) [Also in Group XXII] Apparatus is provided, and a method described for attaching detonator tubes to resilient closure members by necking the mouth portion of the tube. The machine has a body 1 with a flanged base 2. Parallel arms 3 are integral with an annular guide 4 which has a frustro-conical internal surface corresponding to the outer surface of a die 5 formed in two halves, which when closed form a channel of the shaoe required to neck the detonator. The two halves are urged apart by springs 7 in holes near the centre of gravity of the die. which is dove-tailled into a stem 8 having a rearward extension 9 between which a piston 10 with a crosshead 11 is reciprocated. A flanged ring 31 joins the ends of the extensions 9 and acts as a stop for the cross-head. When the piston is retracted, the crosshead bearing against the ring 31 pulls pack the extensions 9 and the stem 8 together with the @ 5, the halves of which are then forced apart by the springs 7. The ring 31 compresses a spring 12 against a bearing 13. Rotation of the stem 8 is prevented by a bolt 15 the head of which slides in a slot 14 in the body 1 of the machine. Through a second slot 16, detonator tubes 19 are fed to a slot 17 in the stem 8 from which the tubes fall into the axial channel in the stem when the piston is retracted. A coupling 20 connects the piston to driving means. The fuze assembly, comprising lead wires 22 passing through a resilient plug 24 and terminating in a matchhead 23, is introduced into the front of the die while in the retracted position. The forward stroke of the piston pushes the detonator tube over the plug, and tube and plug then advance together into the converging portion of the die to form the neck.
Patent GB-310939-A (GB)
Title: Device for transforming a uniform rotary motion into an alternating motion with different speeds in the two directions
IPC: F16H21/40
Filed: 1929-05-03
Abstract: 310,939. Colucci, G. May 3, 1928, [Convention date]. Void [Published under Sect. 91 of the Acts]. Crank linkages. - A quick return motion applicable generally to machine tools, stamping, punching, packing, &c. machines &c. comprises a rotatory crank 1 coupled by a link 3 to an oscillatory radius arm 2. The distance between the centres 0, P of crank and radius arm is greater than the length of the crank arm and less than the length of the connecting-rod 3, which in turn is less than that of the radius rod 2. The crank radius and the position of the pivot P may be adjustable to enable the action of the device to be varied.
Patent GB-377337-A (GB)
Title: Improvements in methods of and apparatus for crystallisation
IPC: B01D21/00
Filed: 1931-05-11
Abstract: <PICT:0377337/III/1> In a vacuum crystallizing plant in which the solution is circulated continuously between a heater 8, a vacuum evaporator 1 and a settling tank 4 under atmospheric pressure, the deposit collecting at the bottom of the tank 4 is removed by a rake 6 into a pipe 10 from which it is pumped by a pump 10<1> to a mechanical grader 11, e.g. a Dorr thickener, in which the coarse crystals are removed by a rake 12 to a centrifuge 13 while the fines are returned through a pipe 14 to the tank 4.  The overflow from the tank 4 is returned to the heater 8 through a pipe 7 where it mixes with the incoming solution supplied through a pipe 9 and with the liquid separated in the centrifuge supplied through a pipe 15.
Patent GB-145956-A (GB)
Title: A new or improved metal alloy
IPC: C22C9/04
Filed: 1919-06-04
Abstract: 145,956. Farmer, A. E. June 4, 1919. Alloys.-An alloy contains about 53 parts of copper “ part each of aluminium and tin, 28 parts of spelter, and 25 parts of nickel. The copper and part of the zinc may be introduced in the form of 70 : 30 cartridge metal.
Patent GB-572736-A (GB)
Title: Improvements relating to rotary pumps
IPC: F04C14/22
Filed: 1941-11-01
Abstract: 572,736. Rotary pumps. PARNALL AIRCRAFT, Ltd., and DRAPER, F. C. Nov. 1, 1941, No. 14098. [Class 110 (ii)] In a rotary pump of the kind having a rotor 1 with radially slidable vanes 3 rotating in a chamber M eccentric to the rotor, the inner ends of the vanes engage floating rings 5 arranged as seals between the rotor and the end walls of casing M, so that their outer ends are held against the peripheral surface of M. The end plates 6 of the casing M carry trunnions L supported in bearings in arms G pivoted at H, so that the eccentricity of casing may be varied or reversed. Specification 572,737 is referred to.
Patent GB-276747-A (GB)
Title: Improvements in or relating to rock drills and like tools
IPC: B25D9/24
Filed: 1926-06-03
Abstract: 276,747. Holman, A. T., and Holman, P. M. June 3, 1926. Percussive drills.-The cylinder end is closed by a cap 15 between which and the adjacent end of the cylinder 10 is interposed an annular plate 16 which surrounds the twist bar and is provided with a boss 17 engaging a recess in the cap 15. The fluid supply to the ends of the cylinder is controlled by a flap valve 20 hinged at 21. Small holes are provided to balance the valve. Such holes may be provided in valves arranged as described in Specifications 236,797 and 262,998, [both in Class 122 (ii), Steam-engine distributing and expansion valves &c.]. Constructions are described wherein the twist mechanism is dispensed with or is arranged forward of the valve, only a water-tube being accommodated coaxially in the plate 16 and valve 20.
Patent GB-610602-A (GB)
Title: A device for supplying a measured quantity of liquid
IPC: G01F11/04
Filed: 1946-07-01
Abstract: 610,602. Delivering measured quantities of liquids. BULLOCK, S. E., KENDRICK, W. E., and FAULKNER, T. H. July 1, 1946, No. 14102/48. Divided out of 610,596. Drawings to Specification. [Class 106(v)] In a device for delivering measured quantities from a supply of liquid under pressure, of the kind comprising a chamber of predetermined capacity, a piston slidable in the chamber, and manuallyoperated valve means for alternately admitting the liquid into, and discharging it from, opposite ends of the chamber, the valve means are mounted in a valve chamber disposed inside the chamber of predetermined capacity. The construction described is the same as that described in Specification 610,596, which is referred to.
Patent GB-728560-A (GB)
Title: Improvements in or relating to braiding machines
IPC: D04C3/00
Filed: 1953-05-20
Abstract: 728,560. Braiding - machines. JARDINE, C. B. May 20, 1953 [May 21, 1952], No. 14125/53. Class 74 (1). The spool carrying spindles 36a are carried around a braiding- machine in the usual " maypole " fashion by rotating carriers and are held in notches 19, 20 in upper and lower discs 14, 15 of the carriers by upper and lower guide plates 6, 7. A spindle on approaching the point of contiguity of two adjacent discs is held in its notches by a spring- urged arm 37 disposed between the guide plates 6, 7 and co-operating with a resilient buffer 36. On leaving the point of contiguity, the spindle is guided by an arm 28 mounted on a pivot pin 25 above the upper guide plate 6 and having wings 30, one of which is engaged by the spindle as it is carried around its track so that the arm 28 is deflected and the next spindle to leave the point of contiguity is guided along the alternative route. The wings 30 of each arm co-operate with resilient buffers 27. Retaining collars on the spindles engage the upper and lower discs 14, 15 of the carriers to maintain the spindles in their correct position. The carriers are inter-geared, and every alternate carrier is geared to a stabilizing wheel 12.