baber/WOPTO huggingface dataset:
Patent GB-983897-A (GB)
Title: Improvements in or relating to control valves for reversible air motors
Inventor: KING HENRY VERNON
IPC: F01B17/00
Filed: 1960-06-02
Abstract: 983,897. Rotary air motors. PLESSEY CO. Ltd. June 2, 1961 [June 2, 1960], No. 19580/60. Heading FIF. A valve to control a rotary reversible air motor in a constant-speed drive in which the constant output speed is obtained by means of a differential gear interposed between the air motor and an engine (a gas-turbine engine) subject to speed variations and in which the air motor runs in one direction to make up deficiencies and in the opposite direction to take up excess engine speed and in the said opposite direction at low or zero engine speed drives through a sprag clutch the engine for starting purposes. The valve comprises a fixed valve sleeve 13 having axially-spaced sets of ports 14, 15, a spring- loaded sleeve-valve 24 controlled by an hydraulic actuator 28 in accordance with the output speed of the constant speed drive and a pneumatically-actuated, spring-loaded collar piston 20. In the position shown for starting the engine, compressed air from a duct 7 of the engine installation passes through a branch 8 and the open valve element 10 of a change-over valve 9 to drive the air motor 4. Air from the motor exhausting through a connection 3, the ports 14 and a vent 2 to atmosphere. When engine speed reaches starter-decoupling speed, engine speed responsive means operates the changeover valve 9 to close the valve element 10 and open a valve element 11 controlling an atmospheric vent 12. At the same time compressed air is exhausted from a chamber 23 to permit a spring-loaded diaphragm 22 to move the collar piston 20 downwardly so that compressed air from a branch 6 of the duct 7 drives the air motor 4 in the opposite direction to that for starting. Air from the motor now exhausts through the vent 12. At this stage, the output speed of the constant-speed drive is increased beyond the contribution from the engine. When the desired output speed is reached the hydraulic actuator 28 moves the sleeve-valve 24 to partly cover the ports 14 to reduce the speed of the motor 4 and this continues until the engine contributes exactly the desired output speed when the ports 14 are covered and the motor 4 substantially stationary. The motor is prevented from rotating in the opposite direction, i.e., the starting direction, by reaction forces in the differential gear, there now being no outlet for the air pumped from the vent 12 to the connection 3. If engine speed rises further, the sleeve-valve 24 uncovers the ports 15 and so permits the reaction torque from the differential gear to drive the motor at a speed determined by the amount by which the ports 15 are uncovered. An annular groove 25 in the valve element 24 can interconnect the branch duct 6 and the vent opening 2 to produce a jet suction effect to reduce the pressure against which the motor delivers the air. Specification 952,982 is referred to.
Patent GB-1204087-A (GB)
Title: Improvements in or relating to digital data transmission systems
IPC: H04L25/14
Filed: 1969-04-17
Abstract: 1,204,087. Digital transmission systems; multiplex pulse signalling; telephone systems. SIEMENS A.G. 17 April, 1969 [18 April, 1968], No. 19606/69. Headings H4P, H4L and H4K. Each serial n-bit word of a message to he transmitted is accompanied by two additional bits which indicate whether the word is the first (A) word or last (E) word or an intermediate (M) word in the message. The words are transmitted over three channels T 1 , T 2 , T 3 , successive words being passed to successive channels. Thus, if the first message consists of the words Z11, Z12, Z13, Z14 then Z11, Z12, Z13 are sent simultaneously on T 1 , T 2 , T 3  as shown. Z14 immediately follows Z11 on T 1 , and the first word Z21 of the next message Z21-Z27 follows Z12 on T 2 . If a message consists of only one word the additional bits (AE in word Z3) indicate this fact. The words may include parity and Start and Stop bits.
Patent GB-433239-A (GB)
Title: Process for the production of smokeless fuel briquettes capable of easy ignition andof free burning
IPC: C10L5/02
Filed: 1934-07-03
Abstract: 433,239. Materials for making coke briquettes. REDDIE, L. N., 6, Bream's Buildings, Fetter Lane, London.-(Groth, W. ; 78, Hasenheide, Berlin) July 3, 1934, No. 19624. [Class 55 (ii)] In the production of easily ignitable, dustfree, smokeless briquettes from distillable fuels such as lignites, peats, vegetable residues, oil cracking or distillation residues, tar, the crude material is distilled at a temperature of 600‹ C., as a maximum, pulverized and mixed dry with about 20-30 per cent of pulverized coking coal such as gas coal, briquetted by light pressure and subjected to a second distillation at about the same maximum temperature. The briquettes are heated in an externally heated, continuously operated retort, the voids between the briquettes being filled with an inert finely divided material such as granules of coke or anthracite. The vegetable residues may comprise sawdust, or residues from the manufacture of olive oil, ground nut oil and wine. The crude material may also comprise bituminous coal. The semi-coke-like product of the first distillation is pulverized to a particle size of up to 4 or 8 mm. ; the coking coal is preferably pulverized to a particle size of up to 0À5 mm. The coking coal may be replaced by the incompletely distilled residues of cracking of oil, tar, &c., such as "petroleum coke " resulting from a maximum distillation temperature of about 450‹ C., in a proportion of 50-60 per cent by weight of the crude briquettes. Pulverized silica with or without alumina and lime may be added before distillation, the former to prevent slag formation and the latter to combine with free sulphur Specification 391,975, (as open to inspection under Sect. 91) is referred to.
Patent GB-285397-A (GB)
Title: Apparatus for massage and self-massage
IPC: A61H15/02
Filed: 1927-07-25
Abstract: 285,397. Sick, G. Feb. 15, 1927, [Convention date]. Addition to 280,168. Massage; heating appliances.-A hollow massage roller c, mounted to rotate on an axle A fitted with a handle B at each end, is fitted with an electric heater D comprising a helical heating element mounted on the axle A. The roller may be smooth, or may have longitudinal or circulargrooves, or may be formed with projections or with recesses forming suction cups.
Patent GB-1350232-A (GB)
Title: Press feeding method
IPC: B21D43/04
Filed: 1971-06-10
Abstract: 1350232 Feeding metal strip ZAKLAD DOSWIADCZALNY PRAS AUTOMATYCZNYCH HYDOMAT PRZY ZAKLADACH MECHANICZNYCH "TARNOW" 10 June 1971 [15 June 1970] 19841/71 Heading B3W Strip 3 is fed to a press 1 from a coil 7 by a known feed device 4 on the press and a known feed device 5 associated with a clamp 6 for flattening the strip on the coil stand, the two feed devices being arranged to work intermittently together and so that they feed the strip equal distances while maintaining a small strip sag of constant depth on the portion of strip between the feed devices. The feed devices are preferably hydraulically operated reciprocating grippers and are hydraulically coupled. The clamp is also preferably hydraulically operated, holding the strip whilst the feed devices 4 and 5 are retracted between feed strokes.
Patent GB-1584539-A (GB)
Title: Flavour enhancement of dry food compositions
IPC: A23L27/21
Filed: 1978-05-16
Abstract: A composition for dog food is described which is more acceptable by virtue of its improved taste, of the dry or intermediate moisture type, containing as taste enhancing agent, L-lysine, D-lysine, a mixture of D- and L-lysine, their respective salts or a mixture of such salts and of acids.
Patent GB-1526643-A (GB)
Title: Digital frequency measuring circuitry
IPC: G01R23/02
Filed: 1977-05-12
Abstract: 1526643 Frequency to digital converter GENERAL MOTORS CORP 12 May 1977 [28 May 1976] 19945/77 Heading H3H In a digital frequency meter an incoming pulse at 22 causes a fixed number to be added to the contents of recirculating register 48. During each subsequent circulation of its contents they are diminished by a fixed proportion (subtraction of the m.s. 6 bits). Arrival of the next incoming pulse causes the contents to be transferred to output buffer 52, and the fixed number to be reentered into the register 48, The pulses may be derived from a magnetic speedometer and the digital result may drive an analogue or digital display.
Patent GB-761064-A (GB)
Title: Improvements in or relating to polymerizable polyesters and compositions thereof
IPC: C08G63/676
Filed: 1953-07-20
Abstract: Polymerizable polyesters which are solids capable of being ground to free-flowing powders are obtained by esterifying an unsaturated a b -dicarboxylic acid with an alcohol mixture in which between 10 and 50 per cent of the esterifiable hydroxyl groups are provided by a diol of the formula <FORM:0761064/IV(a)/1> where R is an ethylene or iso-propylene radical and in which more than 50 but less than 90 per cent of the hydroxyl groups are provided by another glycol. Specified acids are maleic, fumaric, itaconic, citraconic, monohalomaleic, monohalofumaric and mesaconic acids or anhydrides. The specified acids may be in part replaced by conventional polycarboxylic acids and monohydric alcohols and monobasic acids, which may be unsaturated, may be used as modifiers in limited amounts.  The unsaturated polyesters are copolymerizable with vinyl compounds, e.g. styrene, substituted styrenes, divinylbenzene, acrylonitrile, methacrylonitrile, allyl, methallyl, crotyl, cinnamyl and vinyl esters of saturated and unsaturated mono- or poly carboxylic acids, and saturated monohydric alcohol esters of unsaturated mono- and polybasic acids.  The resins may be mixed with conventional fillers and fibres for use in moulding.  In examples (1) 206 parts propylene glycol, 586 parts 1,11-isopropylidene-bis(pphenyleneoxy) di-2-propanol and 363 parts maleic anhydride are esterified to an acid number of 35-40.  The polyester is cooled to 150 DEG  C. and hydroquinone added as inhibitor and the polyester cooled to room temperature and ground; (2) 60 parts of the polyester of Example 1 are dissolved in 40 parts styrene and the mixture catalyzed with 1 per cent benzoyl peroxide and cast between glass plates.  After 30 minutes at 100 DEG  C. a clear glass-like casting is obtained.
Patent GB-1373696-A (GB)
Title: Endless loop tape cartride core and platform assembly
IPC: G03B21/54
Filed: 1972-05-01
Abstract: 1373696 Tape cartridges RCA CORPORATION 1 May 1972 [10 May 1971] 20046/72 Heading G5R In an endless loop tape cartridge (10, Fig. 1, not shown) wherein a disc platform 34 supports a tape roll (38) wound about a hub core 36, the disc and the core are formed as an integral one piece structure, and the core is provided by a series of arcuately spaced segments 58 having flared portions 66, Fig. 3, which combine with cylindrical portions 60, 70 to give a cup-like shape, as shown; arcuate slot apertures 72 adjacent segments 58 provide radial flexibility to the segments. The shape of the core, and the downward slant given to the disc portions 75 between the slots, assist in the withdrawal of tape from the inside of the roll, as described with reference to Fig. 5 (not shown).
Patent GB-1037919-A (GB)
Title: Improvements relating to roof supports for mine workings
IPC: E21D23/00
Filed: 1963-01-29
Abstract: 1,037,919. Advancing mine-roof supports. K. M. GROETSCHEL. Jan. 29, 1963 [Nov. 10, 1962], No. 20052/64. Divided out of 1,037,911. Heading E1E. The subject matter of the present Specification is the same as that of the parent Specification but the claims differ.
Patent GB-1013301-A (GB)
Title: Apparatus for making multiple compartment paper trays
IPC: B31B45/00
Filed: 1962-05-25
Abstract: 1,013,301. Shaping paper trays. MULTICUP AUTOMATION CO. Inc. May 25, 1962 [Jan. 2, 1962], No. 20172/62. Heading B6J. [Also in Division A4] Apparatus for converting sheet paper material into fluted multiple cup tray form comprises a plurality of male forming dies 15, a plurality of female forming dies 13, both types of die being complementarily fluted at 17, 19, respectively, means for moving the male and female dies into forming relation with each other, and means for moving sets of dies nearer to other sets of dies as the male and female dies, which constitute the sets, are brought together. The male dies are surrounded by shrouding dies 25 having fluted lower edges 27 which co-operate with the radially fluted mouths 21 of the female dies so as lightly to grip the paper blanks 11, a plurality of which is shaped simultaneously, before and as the male dies enter the female dies and thereby facilitate the formation of flutes in the cup portions of the finished trays. The male dies and their shrouding dies are supported from a plate 29 by members 31 having flanges 32 at their upper ends which are slidably engaged in a T-section groove 34 in the plate 29. A prime mover reciprocates the plate 29 vertically to open and close the die sets.
Patent GB-148263-A (GB)
Title: Process for the automatic removal of copper deposit from the bores of guns
IPC: F41A29/00
Filed: 1920-07-09
Abstract: 148,263. Dagory, A. E. A. Oct 11, 1917, [Convention date]. Addition to 148,250. Ordnance, cleaning; machine guns.-Relates to means of the kind described in the parent Specification for removing the copper deposited in the bore of a gun by the projectile driving-bands, and consists in applying the fusible alloy to the curved surface of the projectile in rear of the driving- band, or, in the form of washers, pastilles, ribbons, powder, granules &c., in front of the firing- charge, in the cartridge case or bag, or in the charge itself, instead of on the base of the projectile.
Patent GB-1462784-A (GB)
Title: Central heating and domestic water supply system
IPC: F24D3/08
Filed: 1973-04-28
Abstract: 1462784 Hot water systems for domestic supply and central heating WARMLIFE Ltd 11 Feb 1974 [28 April 1973] 20311/73 Heading F4A  A hot water system for domestic supply and central heating comprises basic units mounted in a parallelepipedal framework: as shown in Fig. 7, a balanced flue boiler 41 which may be gas or oil fired or electrically powered; a cold water supply tank (behind panel 60); and a unit made up of a domestic hot water tank 15 containing an indirect heating coil 16, Fig. 3, a pump 45 which circulates water from the boiler through the coil and through a radiator system (connected at 43, 46), and an automatic control 50 for the central heating and domestic water responsive to a room thermostat. The cold water supply tank (Figs. 4, 5, 6, not shown) has one corner partitioned off to define an expansion tank for the central heating circuit and has two truncated corners to accommodate pipe connections. A framework part 10 (see also Fig. 1, not shown) has two compartments to hold boiler and hot water tank. Other spatial arrangements (Fig. 8, not shown) are described.
Patent GB-246050-A (GB)
Title: Improvements in joints for economisers
IPC: F22D1/02
Filed: 1925-08-14
Abstract: 246,050. Soc. Anon. des Hauts- Fourneaux et Fonderies de Pont-a-Mousson. June 29,1925, [Convention date]. Jointing tubes to flat headers. -In an economizer wherein the headers 1, 2 are connected by tubes 3 having tapered ends 5 providing shoulders 6, the wedging-means at each end of all or some of the tubes consists of two semi-circular straps 7, 7<a> which are pressed upon the shoulder 6 by screws &c. 8, screwed in the header and extending through open slots 10 provided in said straps. The straps can thus be forced out of engagement with the shoulder in order to facilitate the replacement of worn-out tubes, without unscrewing the screws. The screws are protected by asbestos washers 9.
Patent GB-695169-A (GB)
Title: Improvements in emulsion polymerization process
IPC: C08F236/04
Filed: 1951-08-31
Abstract: A mixture of butadiene and acrylonitrile is subjected to aqueous emulsion polymerization, initially in the absence of a cross-linking agent, thereafter adding from 0.7 to 1.5 per cent by weight (based on the sum of the butadiene and acrylonitrile) of divinyl benzene when from 10 to 35 per cent of the original monomer mixture has been converted, continuing the polymerization, and stopping it when 60 to 80 per cent monomer mixture has been converted.  The rubbery copolymer has a content of methyl ethyl ketone-insoluble gel of from 40-80 per cent, as determined on a sample massed by milling for 5 minutes at 360 DEG  F., the gel having a swelling index, measured in methyl ethyl ketone, of from 8 to 35, and a Mooney viscosity, measured at 212 DEG  F., of from 40 to 80. Usually from 60 to 85 per cent of butadiene and from 40 to 15 per cent acrylonitrile is employed, the divinyl benzene being added preferably when from 20 to 30 per cent, and the polymerization stopped, preferably when from 70 to 75 per cent, of the monomeric mixture has been polymerized. Stopping may be carried out by adding a known short-stopping agent, while known regulators, polymerization inhibitors and emulsifying agents are used.  In an example, the mixture was polymerized in the presence of an aqueous solution of a commercial sodium cetyl sulphate paste, tertiary dodecyl mercaptan and cumene hydroperoxide solution, and short-stopped by dinitrochlorobenzene and the polymer flocculated in the presence of anti-oxidant, 2,6-ditertiary - butyl - para - cresol in alcohol.  The product may be blended with copolymers comprising minor proportions of acrylonitrile with major proportions of styrene, p-methyl styrene, a -methyl styrene, a -methyl-p-methyl styrene, 2-chlorostyrene, 4-chlorostyrene or 2,4-dichlorostyrene, or with copolymers of a major proportion of vinyl chloride and minor proportions of vinyl acetate, or vinylidene chloride, or with polyvinyl chloride.  U.S.A. Specifications 2,439,202 and 2,474,807 are referred to.
Patent GB-743604-A (GB)
Title: Improvements in or relating to mountings for electro-responsive devices
Inventor: GEESON CHARLES THEODORE
IPC: H02B1/36
Filed: 1954-07-23
Abstract: 743,604. Mounting relays. REYROLLE & CO., Ltd., A. July 23, 1954 [July 24, 1953], No. 20616/53. Class 38(5) A flush-mounting for an electro-responsive device, e.g. a relay, which is normally housed in a casing, comprises a carriage movable with the casing and carrying conducting members connected through extensible connections to fixed terminals on the casing and through disconnectible connections to the device so that the device and carriage may be partly withdrawn with the device still connected, or the device can be completely withdrawn with its connections broken. In one form, Fig. 1, the carriage A is movable on rollers A' in guides B<SP>1</SP> in the casing B and carries conducting members D connected by flexible or coiled leads E<SP>1</SP> to terminals E. The members D are also connected by links D<SP>1</SP> which may be flexible, as shown, or rigid pivoted members, to the device. The outward ends of members D<SP>1</SP> are adapted to be secured. e.g. by screws C<SP>1</SP>, to the device C which is supported on guides on the carriage. The leads E<SP>1</SP> permit partial withdrawal of the device without disconnection, and the device may be completely withdrawn after disconnection of links D' from screws C'. A projection F' on the .cover F prevents the latter from being placed in pcsition unless all of the link operating members D' are in their raised, closed position. The device C may be mounted on guides on the side of the casing, the carriage being so shaped as to move the device outwardly with it. The leads E<SP>1</SP> may be replaced by sliding contacts. In a further arrangement (Fig. 3, not shown), the device C is plugged into sockets in the carriage. In Fig. 4, the gaps between contacts G' on the carriage and G<SP>2</SP> on the device are normally bridged by withdrawable plugs G which may be replaced by testing plugs, Fig. 6 (not shown). The carriage may be mounted vertically and guided by a parallel-motion linkage, Fig. 7 (not shown), with the device secured to the front of the carriage by locking bolts. In this arrangement. spring plunger contacts on the rear of the device engage butt contacts on the carriage. Adjacent links D<SP>1</SP> may be shortcircuited before disconnection from the device by contact on one link overlapping the next link, Figs 8 to 11 (not shown), or by a separate interlocked switch.
Patent GB-643481-A (GB)
Title: Improvements in or relating to a friction clutch
IPC: F16D13/71
Filed: 1947-07-30
Abstract: 643,481. Friction clutches. DANA CORPORATION. July 30, 1947, No. 20625. Convention date, Sept. 18, 1939. [Class 80(ii)] In a motor vehicle transmission or other plate clutch especially applicable to tractors and of the single intermediate driven' disc type, operated by over-centre levers 22 acting on a presser plate 20, clutch engagement is cushioned by circumferentially arranged sets of springs, such as preloaded double Belleville washer assemblies 25, arranged between the back cover plate 21 and a single annular member 34 against which the levers react. As shown, the washers 25 act between the member 34 and a ring 26, nested in the cover plate 21 and having axial lost-motion rivet connections 40, Fig. 2, with the member 34 to preload the washers and allow their further compression upon clutch engagement. The levers 22, which are operated from a collar 59 and are located in slots 50 in-the member 34, act through rollers 57, 45 on the member 34 and presser plate 20 respectively. The rollers 45 are cut away to engage circumferentially - extending cams 46 on the presser plate. Rotation of the member 34 relative to the cover plate 21 varies the position of the rollers 45 on the cam 46 and effects clutch adjustment. Teeth 53 on the member 34 are accessible through the cover plate 21 to effect such adjustment, a spring locking finger 55 being provided. In Fig. 3 (not shown) the washers 25 are replaced by preloaded coil compression springs, mounted in retainer cups projecting externally through bores in the cover plate. The springs act between the cover plate and the ring nested therein, which is now in axial lost motion connection therewith and directly supports for relative rotation the lever-carrying annular member.
Patent GB-185303-A (GB)
Title: An improved lubricator
IPC: F16N7/12
Filed: 1922-01-27
Abstract: 185,303. Gordon, H. Jan. 27, 1922. Capillary-action lubricators. - A capillarysiphon lubricator for motor vehicles comprises a reservoir A, tubes B. C containing a wick D. tubes E, F allowing access of air to the reservoir, and a cap I. The tubes extend above the level of oil, the lower end of the tube B extending to and running parallel with the bottom of the reservoir. The lower end of the tube C may be threaded for attachment to the bearing, or the lubricator may be made integral with the bearing. The tube E runs parallel for a part of its length with the oil level and enters the top of the reservoir and lies alongside the upper end of the tube F which passes through tne reservoir and is connected at its lower end to a rubber tube G, the junction being enclosed by a nipple H, a filling- opening is covered by a plate J held by a flange K. A pin L is provided in the tube B to position the wick. The reservoir is designed to have a a large area and small height in order to reduce variation of flow. More than one wick may be employed. The arrangement of the tubes prevents loss of oil by jolting or by assuming a position out of the vertical.