baber/WOPTO huggingface dataset:
Patent GB-568146-A (GB)
Title: Improvements in alarm devices for use in systems for feeding aggregate materials
IPC: F23K3/00
Filed: 1942-12-30
Abstract: 568,146. Alarm devices for materialfeeding systems. STOCK, A. J. Dec. 30, 1942, No. 18548. Convention date, Dec. 12, 1941. [Class 143] [Also in Group XII] Apparatus for detecting stoppages in the flow of bulk material through a feeder system, for example, for feeding coal or coke to the boilers ] of a power plant, comprises a batch delivery device (for example, a weighing-apparatus), a feeding device (for example, a pulverizer-feeder or stoker), means driven by a rotating part of the feeding device to actuate an alarm signal if an abnormal predetermined angular displacement of the rotating part occurs, and means operated by the batch delivery device (upon the delivery of a batch) to reset, if normal operation occurs, the means driven by the rotating part of the feeding device and thus prevent the actuation of the alarm. In Fig. 2 is shown an alarm unit for use with the usual elements of a coal supply system, viz. an automatic weighing-apparatus 18, Fig. 1, fed from a bunker 11 by an intermittently-running belt conveyer 16, and a pulverizer-feeder or stoker 14 for feeding a furnace. Preferably, two of the alarm units 21, 22 are used, one driven with the belt conveyer 16 and the other by the stoker 14. Each unit has a driven shaft 27 and is provided with a resetting device operated by the weighing mechanism. If a stoppage occurs above the weigh hopper, the belt conveyer 16 operates for an abnormally long time before the weighing mechanism operates. The shaft 27 (driven with the conveyer) drives a mutilated wormwheel 29 sufficiently to cause a pin 38 thereon to engage an arm 37 and rock a mercury switch 36, thereby giving an alarm. In normal operation, however, the pin fails to reach the mercury switch before the weighing machine operates, and stops the driving motor 17, Fig. 1, of the conveyer, and with it the shaft 27. A solenoid 43 in the motor circuit is de-energized and allows a dashpot plunger 50 to fall. When the motor 17 is restarted for a further weighing operation, the solenoid, acting through the dashpot lifts the worm-wheel 29 out of gear with its driving worm 28, and a spring 44 revolves the worm-wheel until the pin 38 abuts against an adjustable slider 45 and the wheel is permitted by the dashpot' to re-engage its worm in readiness for a new cycle. The second alarm unit operates in a similar manner if the coal piles up under the weighing-apparatus, preventing its operation and thus causing the pulverizer-feeder or stoker to operate for an unusually long period between the operations of the weighing-apparatus. Shortage of coal supplied to the weighing-machine causes both alarms to be given. If it is desired to render the stoker alarm inactive upon actuation of the scale alarm, a further mercury switch, tilting with the scale switch 36, is arranged to break the circuit of the stoker alarm. Specification 568,147 is referred to.
Patent GB-613618-A (GB)
Title: Improvements in or relating to an inductor for induction heating apparatus
IPC: H05B6/36
Filed: 1946-06-20
Abstract: 613,618. Induction heating. INDUCTION HEATING CORPORATION. June 20, 1946, No. 18569. Convention date. June 27, 1945. [Class 39 (iii)] A split multiturn indicator is arranged to open along a line 18 to give radial access to the work receiving aperture 10, and is held in the closed position by locking means 40, 41, 42. Interconnection of the plate-like turns is made at a narrow gap 24 existing between adjacent sector shaped elements 12, 14, which together with sector 13 comprise each turn, by means of triangular-shaped extensions on the sector shaped elements 20, 22, Fig. 5, and a triangular shaped connecting bridge 21. The sector shaped elements are formed with cooling fluid passages 70, 71, the inlet and outlet pipes of which are connected together in series. Quenching fluid is conveyed via inlet pipes 29, 30, to the space between the plate-like turns of the coil, a drip aperture as at 31 being provided in the outer insulating and supporting structure. A modification is shown in Fig. 9 in which a single sector shaped element 13a is removable from a second element forming the remainder of each circular plate-like turn, the two sectors having recessed edges 70, 71.
Patent GB-1380772-A (GB)
Title: Aromatic polycarbonates with aliphatic hydroxyl groups
IPC: C08G64/22
Filed: 1972-04-21
Abstract: 1380772 Phenolic ethers BAYER AG 21 April 1972 [23 April 1971] 18612/72 Heading C2C [Also in Division C3] Mono-(#-hydroxyethyl) ether of bisphenol A is prepared by reacting #-hydroxyethyl-p-isopropenyl phenyl ether with phenol. The 1,1,1-trimethylolpropane-monoether of resorcinol is prepared by reacting resorcinol with 2-ethyl-2-bromomethylpropanediol-1,3.
Patent GB-661814-A (GB)
Title: An improved apparatus for demonstrating the presence of supernormal radioactive radiation
IPC: G01T7/12
Filed: 1949-07-14
Abstract: 661,814. Detecting radio-activity. GRAFFUNDER, W. H. July 14, 1949 [July 14, 1948; Feb. 1, 1949 and May 14, 1949], Nos. 18626/49; 18627/49, 18628/49. Class 40 (iii). A warning is operated when radio-activity in a particular region exceeds a mean adjustable level. Voltage pulses from an A.C. fed Geiger- Muller counter or ionization chamber may be used to charge a condenser in parallel with a leakage resistance so that if the condenser voltage exceeds an adjustable mean value a thyratron is triggered to operate a relay. A further relay may discharge the condenser so that the condenser is recharged if the radiation level does not fall and the apparatus gives periodic warnings. To lengthen the counter output pulses they may be applied to an A.C. fed thyratron before being integrated in the condenser, the thyratron firing at each pulse and remaining conductive until its plate voltage passes below zero. If an ionization chamber is used the chamber may be operated at a high potential but connected only intermittently to the amplifying circuit. The ionization chamber may be provided with a cover to retain radioactive dust, this cover being permeable to X-rays. It may for example be made of " Cellophane " (Registered Trade Mark) sheets or leaves, possibly supported by wire gauze.
Patent GB-294367-A (GB)
Title: Improvements relating to handles for perambulators, pushchairs or the like
IPC: B62B9/20
Filed: 1927-07-14
Abstract: 294,367. Halesowen Tube Co., Ltd., and Rose, F. L. July 14, 1927. Push-bars or handle of the hinged type for perambulators, push-chairs or the like are held in their operative position by a sliding sleeve or collar on the stem adapted to engage in a bracket having an opening with a narrow mouth and retain the stem therein. In the construction shewn in Figs. 1 and 2, the stems 1 of the handle are pivoted at 2 and may be hinged downwards out of the way. When raised each stem enters an opening in a bracket 5, the opening being larger than the stem but having a narrow entrance through which the stem can only just pass. The tubular collar 8 is then slid downwards so that it fills the annular gap between the stem and the opening. The collar is retained in position by an enlarged or expanded upper end or by a stop on the stem. The brackets may be arranged on the sides of the body with their openings facing forward. The collar may be shaped as shown in Fig. 10 so that it mav be placed on the stem over the flattened end. The circular part is divided by two longitudinal slots and the two parts are connected by projecting bridge members 10 at one end. Modifications of this construction are de. scribed. The collar may be replaced by the looking member shown in Figs. 13 and 14 in which a curved plate 15 is formed with tapered ribs 16- adapted to engage notches 17 in the bracket 5.
Patent GB-784621-A (GB)
Title: Improvements in or relating to conductive elastomeric compositions and method of making
Inventor: FUOSS RAYMOND MATTHEW
IPC: H01B1/00
Filed: 1955-06-28
Abstract: Conductive rubber compositions comprise (1) a polar synthetic elastomer having a dielectric constant of at least 5; (2) a polar plasticizer, having a dielectric constant of at least 10, which is compatible with the elastomer; and (3) an electrolyte which is soluble in the plasticizer.  (1) may be a butadiene-acrylonitrile copolymer, polychloroprene or polyethylene sulphide.  (2) may be cyclic and aromatic sulphones, alkyl and aryl nitriles, nitrocompounds and alkoxy esters of dibasic carboxylic acids, e.g. tetramethylene sulphone, dimethylsulpholane, octadecylnitrile, b ,b 1 - oxydipropionitrile, benzonitrile, anisonitrile, 2 - nitro - p - cymene, o-nitroanisole, methyl o-nitrobenzoate and dimethoxyethoxyethyl adipate.  (3) may be a quaternary ammonium, sulphonium, phosphonium, iodonium or carboxylic acid salt, e.g. phenyltrimethyl ammonium bromide or iodide, tetraethyl ammonium or laurylisoquinolinium bromide and triethylmethyl ammonium or methyl pyridinium p-toluene sulphonate.  The compositions may be compounded with carbon black, zinc oxide, sulphur, tetramethylthiuramdisulphide, methyl zimate, stearic acid and sym - di - b  - naphthyl - p - phenylenediamine, vulcanized and formed into shoe soles.
Patent GB-726379-A (GB)
Title: Solenoid operated valve
IPC: F16K31/06
Filed: 1953-07-06
Abstract: 726,379. Valves. COLLINS, J. E. July 6, 1953 [Oct. 15, 1952], No. 18727/53. Class 135. A solenoid-operated valve includes a plunger 20 axially movable through a sleeve 16 in the solenoid 14 against resilient means, e.g. a spring 24, from a.second operative position in which its lower end seals a .first flow passage and port A to a first operative position where, e.g., the upper end of the plunger pre- " vents .fluid flow through .passages 10b, 17a, plunger slots 20a and port C, the sleeve having an end stop 17 telescopically located in its,upper end for permitting limited relative movement between the stop and sleeve and. determining the first-operative position of .the plunger, whereby shock on the valve of the plunger hitting the stop is reduced., Normally, the lower end of the plunger prevents communication between ports A and C. A .sealing ring 26 prevents leakage between the stop and sleeve, and aids in reducing shock. A rubber washer 28 inserted between the stop and bars 9 of magnetic material or between the bars and the housing 12 reduces the noise of the plunger impact on the stop.
Patent GB-963267-A (GB)
Title: Improvements in formal compounds and their manufacture
IPC: B01J31/10
Filed: 1961-05-24
Abstract: The invention comprises mixtures of formals of the formula: RO Cn H2n OCn H2n (OCH2O CmH2mOCm H2m)xOH wherein n and m are 2 or 3, x is 1, 2, 3 or 4, R is an alkyl group having 2 or 3 carbon atoms, which may be prepared by heating for about 1-30 hours at about 75-100 DEG C., a mixture of either or both diethylene and dipropylene glycols, a saturated aliphatic alcohol having two or three carbon atoms and paraformaldehyde, in the molar ratio of 1:1-15:1-3 (calculated as formaldehyde) in the presence of an acidic catalyst. The catalyst is used preferably in amount of 1 to 30 gm per mole of dialkylene glycol. After the reaction the solid catalyst is filtered off, the dissolved catalyst is then neutralised, the mixture stripped of alcohol and water and then refiltered. An azeotroping agent such as benzene may also be added and the water continuously removed by distillation. Catalysts mentioned are sodium bisulphate and acidic ion exchange resins. Examples describe the reaction using (i) isopropanol and diethylene glycol, (2) ethanol and diethylene glycol, and (3) ethanol and a mixture of diethylene and dipropylene glycols.ALSO:An hydraulic fluid comprises a mixture of hydroxyalkylformals having an A.S.T.M. pour point below - 40 DEG  F. and an atmospheric boiling point above 350 DEG  F., the formals having the formula ROCnH2nOCnH2n(OCH2OCmH2mOCmH2m)xOH in which n and m are each either 2 or 3, X is 1, 2, 3 or 4 and R is an alkyl group having 2 or 3 carbon atoms.  A brake fluid was made up from 99.25% of hydroxyalkylformal according to the invention, 0.25% of polymerized trimethyldihydroquinoline, and 0.50% of a glycolborax condensation product.
Patent GB-519571-A (GB)
Title: Incendiary and poison gas proof compositions for buildings
IPC: C04B22/08
Filed: 1938-06-25
Abstract: 519,571. Plaster and like compositions. MATHER, F. F., and TATHAM, G. H. June 25, 1938, No. 18873. [Classes 22 and 70] Sodium tungstate is mixed with infusorial earth to increase its heat-resistant properties. The mixture with water yields a pasty-workable mass which may be used as a facing or may be used with a binding-agent such as sodium or potassiumsilicate or magnesite and magnesium chloride to form block or slabs. Slaked lime, dolomite, magnesite or kaolin may be added. Sodium tungstate may also be added to plaster of Paris.
Patent GB-402018-A (GB)
Title: Watertight ball cock
IPC: F16K1/14
Filed: 1933-07-04
Abstract: 402,018. Loose-ball valves. BERNARD, H., 141, Rue Legendre, Paris, and PICARD, F., 21, Rue des Alouettes, Colombes, Seine, both in France. July 4, 1933, No. 18933. Convention date, July 4, 1932. [Class 135.] A loose-ball valve 6 is pushed up to its seating in closing by a member 9 having a flat surface which leaves the ball free to move laterally and centre itself to its seating. The arrangement shown provides for actuation by a screwed spindle 8, and lateral movement of the ball valve is limited by a cage 2.
Patent GB-1220252-A (GB)
Title: Apparatus for processing grains
Inventor: ASPER JEAN-JACQUES
IPC: B02B3/04
Filed: 1968-04-22
Abstract: 1,220,252. Processing cereal grains with a liquid. PATES ALIMENTAIRES RIVOIRE & CARRET. 22 April, 1968 [21 April, 1967], No. 18966/68. Heading A2Q. An installation for treating cereal grains  with a liquid, e.g. to de-husk the grains, comprises at least one horizontal, rotatably mounted liquid-containing drum whose peripheral wall 1 is wholly or partly frusto-conical (drums 30, 24, respectively, Fig. 5) and which has, in its larger diameter end 2, an opening 3 to admit grains to be treated, its smaller diameter end 4 being open for discharge of the treated grains, and there being secured within the drum a helical partition 6, whose pitch increases towards the discharge end 4, and screening means for separating the processed grains from the liquid, the arrangement being such that upon rotation of the drum grains introduced through the opening 3 are progressively moved at a substantially constant volume flow rate towards the outlet end 4 by the partition 6 so as to first make contact with the liquid and then be separated from any excess liquid by the screening means prior to discharge through the end 3. The screening means is preferably in the form of a perforated frusto-conical liner 5 (Fig. 1) which is secured to the frusto-conical wall of the drum in spaced relationship therewith. Alternatively, the helical partition may be suitably perforated (Fig. 2) to perform the screening function. In either case, the perforations are made slightly smaller than the smallest grains being treated. Agitator blades 14 (Fig. 2) rotated by driven shafts 12 may be provided to agitate the grains during their transport through the drum. Preferably, a number of drums are arranged in series (Fig. 5). In the first drum 24, wheat grains are sprinkled with and steeped in water, the grains then passing to a second drum 30 in which they are mechanically dehusked by agitation in the presence of an aqueous solution of soda, supplied by a sprinkler 33, and live steam issuing from nozzle 35 for loosening the husks. The grains are then received in a third drum 36 which is partially perforated so that a dilute solution of soda issuing from a sprinkler 40 may flow continuously between the drum and a collecting tank 42 to wash away the husks. The soda solution is supplied by a tank 52 which collects the solution via a filter 51 from a fourth drum 45 which performs a similar function to the third drum excepting that the sprinkler 47 in this drum supplies water only. The grains then pass to fifth and sixth drums 53, 56 in which they are washed respectively with dilute acid, e.g. hydrochloric acid, and water, via respective sprinklers 55, 58.
Patent GB-576032-A (GB)
Title: Improvements in or relating to the cooling of engines in aircraft
IPC: B64D33/10
Filed: 1943-11-15
Abstract: 576,032. Aircraft radiators. NAPIER & SON, Ltd., D., HALFORD, F. B., and COWDREY, C. L. Nov. 15, 1943, No. 18983. [Class 4] The flow of cooling air over an aircraft radiator arranged as described in Specification 574,677 is controlled by an annular shutter E mounted at the rear of the annular passage containing the radiator A, the shutter being movable axially as a whole or in sections to control the area of the air exit opening. The shutter E is of streamlined shape thicker at its forward end than at the rear and is movable by electrically-driven screw jacks F<1>, or by hydraulic jacks, to close or open the exit B<1>. The inner surface E<3> is cylindrical and is guided by the curved rear edge of the air passage. The cooling air is directed to the annular entrance of the air passage by the spinner which may or may not be divided as shown to form a passage K. A fan C at the entrance to the air passage rotates in the opposite direction to the propeller D.
Patent GB-753179-A (GB)
Title: A device for load handling or digging
IPC: E02F3/30
Filed: 1954-06-29
Abstract: 753,179. Shovelling machines PAHLEN, G. T. June 29, 1954 [June 30, 1953], No. 19001/54. Class 68(1) [Also in Group XXX] A slueing mechanism for a scoop arm shovel comprises a rotatable column provided. with helical guide ways co-operating with actuating members which are guided for movement in a vertical plane and are adapted to be raised and lowered by fluid pressure. The mechanism shown in Fig. 2 comprises axially fixed concentric cylinders 6, 7 provided, respectively, with a helical slot 13 and vertical slots 12. a ram 9 carrying a cross-head 11 and rollers 15 mounted on the cross-head and engaging the slots; the arrangement being such that extension of the ram slues the cylinder 6. Arms 18, 21 carrying a bucket 22 are mounted on the cylinder 6 and are luffed by rams 19, 23. The slots and rollers are protected by a shroud 17 secured to cylinder 6. In a modification (Fig. 3, not shown); the helically slotted cylinder is located inside the vertically slotted cylinder and the arrangement of the inner arm and its luffing ram is similar to that shown in Fig. 4. In Fig. 4 the cylinder. 29 is slued by a non-rotatable plate 32 which is raised and lowered by rams 34 and is provided. with a notch (not shown) engaging a helical projection 30 on the cylinder. The apparatus is attached to the rear of a lorry.
Patent GB-701759-A (GB)
Title: Improvements in or relating to ships' hull constructions
IPC: B63B3/14
Filed: 1951-08-14
Abstract: 701,759. Bulkheads and framing. ALBIACH V. Aug. 14, 1951 [Dec. 6, 1950; Jan. 25, 1951], No. 19134/51. Class 113(2) In a hull construction for tankers comprising one or more longitudinal bulkheads 25 lying on each side of the centre line of the ship, the scantlings of the bulkheads not being substantially greater than is necessary to resist the stresses imposed by the liquid cargo, and bottom and deck girders 5, 4, arranged in the plane of each bulkhead, the scantlings of the girders are substantially greater than would be required merely to resist 'the stresses imposed by the liquid cargo so as to enable them to share in the structural strength of the main hull structure. The longitudinal bulkheads, and also transverse bulkheads forming the transverse walls of the individual tanks, are of corrosion-resisting material, and may be formed with vertical corrugations, the depth of which progressively increases from the top to the bottom of the bulkhead. When a flat bulkhead is employed the stiffeners 21 (Fig. 11) connected to the bulkhead 22 may be formed with notches 23 at top and bottom to allow the bulkhead to deflect, as at 24, or alternatively increased flexibility may be obtained by bending the bulkhead at its extremities as shown at 26 and 27 in Fig. 13. The frame reinforcement members 28, 30 are attached to the deck transverse members 8 and the bottom transverse members 7 independently of the bulkhead. To preserve the continuity of transverse members passing through a longitudinal bulkhead, or of longitudinal members passing through a transverse bulkhead (Fig. 5), a connecting member 14 secured to the members 12 passes through a collar 15 secured to the bulkhead. The transverse frame 32 (Fig. 16) is reinforced by a bar 33 shaped to conform to the frame and then secured thereto.
Patent GB-859091-A (GB)
Title: Tape dispensing
Inventor: WOOD DAVID OVEREND
IPC: B65H35/00
Filed: 1957-06-18
Abstract: 859,091. Slitting adhesive tape. ADHESIVE TAPES Ltd. June 18, 1958 [June 18, 1957], No. 19139/57. Class 31 (1). [Also in Group XVII] A tape dispenser of the kind adapted to hold a reel of tape and in which a length of tape remains extended and supported after the tape has been pulled and the required length cut, has a plurality of cutter blades 4 which are mounted side-by-side and are separately advanceable to slit the tape longitudinally at one or more selected positions. The blades 4, which may be razor blades, are provided in an attachment adapted to be secured to the dispenser and which comprises a bracket 1 and a stem 3. Each blade has a longitudinal slot through which the stem 3 passes and the blades are separated by distance-pieces 5 and held in position by a compression spring 6. The bottom of the bracket forms a guide for constraining the blades to slide in a longitudinal direction. The attachment may be fitted to the inner side of a lid of an openable dispenser.
Patent GB-381224-A (GB)
Title: Improvements in full fashioned hosiery machinery
IPC: D04B11/22
Filed: 1931-07-02
Abstract: 381,224. Knitting-machines. COTTON, Ltd., W. and RIXOM, A. J., Pinfold Gate, Loughborough, Leicestershire. July 2, 1931, No. 19149. [Class 74 (ii).] Two rollers B, B<1> are provided for cooperation one with each face cam A3, A<4> of the cam shaft A of a straight-bar machine, and are mounted upon a slide B4 which can be moved automatically into either of two positions, in each of which one roller only is in engagement with its cam. The two face cams A<3>, A<4> are radially displaced with respect to the shaft A, and the means for moving the slide B<4> towards and away from the shaft preferably comprise two arms C<1>, C<2> secured to a rocking shaft, one arm carrying a roller C<4> acted upon a cam C<5> attached to the face cam A<4>. A fork C<6> mounted upon the slide B<4> embraces a shaft C<3> connecting the arms C<1>, C<2>, and when the fork C<6> is rigidly secured to the slide B<4>, the slide is moved by the cam C<5>. A member D is slidably mounted upon the slide B<4> so that it can be moved by pattern mechanism so that slots D<1> in it can be moved from beneath lugs C<11> formed upon the forked member C<6> so that the member C<1> is rigidly secured to the slide B<4>. When the slots D<1> are disposed beneath the lugs C<11>, the forked member C<1> rotates about its pivot and allows the shaft C<3> to move without the slide B<4>. A hook or catch G<2> pivoted upon the bracket B<5> carrying the slide B4 is provided for maintaining the slide in its outer position.