baber/WOPTO huggingface dataset:
Patent GB-256327-A (GB)
Title: Improvements in methods for the treatment of peat for the removal of water therefrom
IPC: C10F5/00
Filed: 1925-05-07
Abstract: 256,327. Rigby, T. May 7, 1925. Peat, preparing.-In a process for dewatering peat the material is subjected to heat or to treatment with chemical reagents or both, and is then diluted to facilitate removal of foreign matter such as stones, ashes and twigs, by settling, centrifuging, screening &c., and either whilst still diluted or after a preliminary thickening is pressed in the condition of a thin film. The water added to dilute the peat may consist of liquid which has previously been drained or expressed. For removing foreign matter from the diluted material a suspension vessel may be employed having an inlet to a zone between its upper and lower ends, impurities both being collected in the base and floated off from the surface. One or more sieves may be associated with the suspension vessel. Alternative devices include a pulp thickener having a rotating sieve fixed to a drum and screens or devices as described in Specifications 202,793, [Class 117, Sifting &c.] and 228,628 with a plain or toothed scraper arranged across the width of the drum. A regenerative method of heat treatment comprises employing a number of closed vessels preferably fitted with stirrers and interconnected by pipes so that steam flashed off from one vessel is condensed in another vessel at a lower temperature and pressure. In an example a vessel filled with peat at 175‹ C. is successively brought into communication with four other vessels at progressively lower temperatures to 25‹ C. raw peat having been preheated e.g. by presswater to this temperature. Specifications 5036/91, 3215/01, 25299/08; 201,190 and 220,015, [both in Class 46, Filtering &c.], are referred to.
Patent GB-418512-A (GB)
Title: Improvements in exhaust silencers
IPC: F01N1/06
Filed: 1933-04-25
Abstract: 418,512. Exhaust-silencers. UPWARD, A. R., 28, Holland Road, Kensington, London. April 25, 1933, Nos. 12050/33 and 5826/34. [Class 7 (ii).] Exhaust gases entering at c are divided into two streams which flow through pipes c<1> to chambers A, B respectively. From these chambers the gases are discharged through a number of opposed nozzles d mounted in plates e which are detachable for cleaning. The gap between the jet orifices is determined by collets g through which pass securing bolts h. Flow through the pipes c is controlled by a vane l adjustable by screws m. The whole of the jet part of the apparatus is enclosed in a casing i. Gases leaving the outlet o may pass into another similar silencer. In a modification, the chambers A, B are in the form of concentric cylinders with the nozzles disposed radially thereon. In a further modification, the gases enter one side of a tubular ring, the opposite side of the ring being divided by a gap.
Patent GB-850905-A (GB)
Title: Electric current transmitting device
IPC: H01R39/38
Filed: 1959-04-09
Abstract: 850,905. Brush-holders for dynamo-electric machines. SCHUNK & EBE. G.m.b.H. April 9, 1959 [April 10, 1958], No. 12100/59. Class 35. A brush-holder for holding brushes 2, 3 in contact with a rotating electrical machine, comprises a two-armed lever 1 pivotally mounted at 5, one arm carrying a pressure member 7 which contacts the brushes through a ball 9 bearing in in a V-shaped notch 4 formed by the brushes bevelled upper edges. The pressure member, which may be conducting, passes through an insulating member 6 having a sleeve lining 8 and is free to slide with respect to sleeve and lever.
Patent GB-835142-A (GB)
Title: Improvements relating to roof supports for mine workings
Inventor: DUNCAN ANGUS WELLESLEY
IPC: E21D15/58
Filed: 1957-04-13
Abstract: 835,142. Mine roof supports. MINING ENGINEERING CO. Ltd. April 10, 1958 [April 13, 1957], No. 12151/57. Class 20(2) A mine roof support comprises one or more reinforced rubber tyres 10 with axis vertical filled with liquid under pressure by means of a connection 23. The beadings of the tyres are clamped together by rings 13, 14 and a top plate 17 contains the liquid conduits and the relief valve 42. The support may be mounted on an accumulator comprising an inflated tyre 33 in a chamber 32 and which is compressed by liquid discharged through a valve 41 when the support yields under excess pressure. The liquid stored under pressure may be discharged to preload the support through a valve 39.
Patent GB-505093-A (GB)
Title: Improved process and apparatus for hair waving or curling
IPC: A45D4/04
Filed: 1937-11-05
Abstract: 505,093. Hair - waving appliances. WINZER, C. B. Nov. 5, 1937, No. 12198. [Class 131] Hair is waved by enclosing it, in a moistened condition and wound upon a curler, within a preheated tube 5 which is enclosed within a vacuum tube 7 in a jacket 6 closed at both ends. The tube 5 is preheated to a temperature above the boiling point of water, for example above 430‹ F., by placing it on a pipe heated by a spirit stove. In a modification a pair of jacketed tubes are secured together end to end, the hair being introduced between the ends and wound in opposite directions. A plurality of jacketed tubes may be suspended by cords from an overhead bracket.
Patent GB-1462317-A (GB)
Title: Process for the production of 2,6-naphthalene dicarboxylic  acid dimethyl ester
IPC: C07C51/265
Filed: 1975-03-24
Abstract: 1462317 2,6-Naphthalene dicarboxylic acid dimethyl ester DYNAMIT NOBEL AG 24 March 1975 [26 March 1974] 12277/75 Heading C2C A process for the production of 2,6-naphthalene dicarboxylic acid dimethyl ester comprises oxidizing 2,6-dimethyl naphthalene by means of a gas comprising molecular oxygen, in the presence of a solvent and a catalyst to produce a first oxidation product, esterifying the first oxidation product with methanol to produce a crude esterification product comprising 2,6- naphthalene dicarboxylic acid dimethyl ester and secondary products; separating the secondary products from the 2,6-naphthalene dicarboxylic acid dimethyl ester; oxidizing the secondary products by means of a gas comprising molecular oxygen, in the presence of a solvent and a catalyst to produce a second oxidation product; and esterifying the second oxidation product with methanol to produce further 2,6-naphthalene dicarboxylic acid dimethyl ester. In a preferred embodiment the process is carried out in acetic acid as solvent. Preferably the catalyst comprises a compound of cobalt and a compound of bromine, or it may be a compound containing bromine and cobalt.
Patent GB-642663-A (GB)
Title: An improvement in or relating to boring or drilling machines
IPC: B23B47/28
Filed: 1947-05-07
Abstract: 642,663. Drilling-machines. KITCHEN & WADE, Ltd., and WALKER, D. May 7, 1947, No. 12287. [Class 83 (iii)] A boring or drilling machine for operating on cylinder blocks c comprises a verticallymovable slide a which is fed downwardly through a spring-loaded slip clutch and carries one or more cutters, one or more adjustable stops d, d<SP>1</SP> for contacting the block and arresting feed at the desired depth, and a spring contact e for engaging the block at, or approximately at, the same time as do the stops d, d<SP>1</SP> and thereby operating a time-switch adapted to stop the rotation of the cutters at a pre-determined time after the cessation of down-feed ; a second time-switch also operated by the contact e thereafter sets into motion means for raising the slide. The means for raising the slide consists of a rapid-traverse motor which is stopped by the second time-switch when the slide reaches its top position, and at this stage the other switch is operated to restart the motor which effects the down-feed and also rotates the cutters. In order to prevent borings from interfering with the operation, compressed air is supplied to the surface of the cylinder block c through the hollow stops d, d' and a nozzle f<SP>1</SP> located near the contact e.
Patent GB-980440-A (GB)
Title: Improvements to radar data extraction systems
IPC: G01S7/28
Filed: 1962-03-30
Abstract: 980,440. Pulse radar. SOC. NOUVELLE D'ELECTRONIQUE ET DE LA RADIOINDUSTRIE. March 30, 1962 [April 17, 1961; May 23, 1961], No. 12298/62. Heading H4D. In order to remove spurious signals from wanted echo signals in pulse radar, the detected signals are subjected to successive " coincidence " searches in the first of which relatively long time gates q 1 , Fig. 2a, are utilized and in the second of which time gates q 2 , Fig. 2b, not longer than the radar pulse duration are utilized, the second coincidence search being made only for those signals found in the first coincidence search, and the wanted signals are fed to a memory device. The video echo signals on line 1, Fig. 1, below an amplitude threshold S 1 , Fig. 2a, are rejected by a device 2 which additionally amplifies signals above that threshold to a fixed amplitude S 2 , Fig. 2b; Fig. 2 shows sequencies of echo signals in successive repetition periods I, II, III, IV, the signals in corresponding periods being designated by letters a, b, c, d. A circuit 6 causes the signals to be delayed by the quantum q 2  and also causes signals occupying two quanta to issue in the positions of two adjoining quanta as depicted in Fig. 2c. Circuit 3 includes a matrix of ferrite cores each of which changes state in response to a signal corresponding to a quantum magnitude q 1 , the signals being delayed by q 1  as shown in Fig. 2d. Fig. 2e represents the signals of Fig. 2b which have been delayed by a quantum q 1  and advanced by a quantum q 2 . Circuit 3 makes the first coincidence search from the second repetition period to the first &c., the signals, Fig. 2f, ensuing and being switched by a circuit 4 to the small-quantum coincidence search circuits 5 from whose output circuit 7 issues the signals shown in Fig. 2g. In an alternative embodiment the signals from circuit 3 are applied to a range counter feeding a switching circuit connected to registers each of the latter controlling a " conditioner" such that when the range counter passes through a state corresponding to that of one of the registers in the next recurrence period the conditioner delivers a pulse to an output circuit via an AND circuit, Fig. 3 (not shown). In order to assist differentiation of wanted echoes from clutter, the signals selected by the two coincidence searches are applied to a delay line 18, Fig. 5, consisting of elements 19 each of which imparts a delay of one quantum q 2 ; the delay line outputs are connected as shown to a summation circuit 21 and a differential amplifier 22 the other input to which is a D.C. reference voltage. Amplifier 22 and the mid-point of the delay line are connected to AND circuit 23 the output from which is sent to utilization means. The theory of operation of Fig. 5 is described with reference to Fig. 4 (not shown).
Patent GB-592639-A (GB)
Title: Improvements in or relating to auxiliary machinery for gas turbine driven ships
IPC: B63H23/00
Filed: 1945-05-16
Abstract: 592,639. Propelling ships. TRIGGS, W. W. (Akt.-Ges. Brown, Boveri, & Cie.). May 16, 1945, No. 12346. [A Specification was laid open to inspection under Sect. 91 of the Acts, Nov. 26, 1945.] [Class 114] A gas turbine propelling plant is started by an electric motor system 7 which receives its power from a separate diesel-driven generator 9. When running, the motor can be utilised as an auxiliary generator and the generator 9 stopped. Also, if desired, the generator 9 could be used as an auxiliary engine, driving the ship through the motor 7, the turbine being disconnected by the coupling 5. In a modification, the motor 7 is duplicated and changespeed gears inserted in the reduction gearing.
Patent GB-690727-A (GB)
Title: Improvements in or relating to the method of stabilizing the calorific value of heating gases, notably producer gas
IPC: C10J3/00
Filed: 1951-05-28
Abstract: 690,727. Testing gas; gas mixtures. SOC. AR.L. HEURTEY & CIE. May 28, 1951 [June 3, 1950], No. 12401/51. Class 55(ii) In order to stabilize the calorific value of producer gas supplied to the burners of coke ovens and obtained by gasifying poor quality coke, a proportion of flue gases is introduced under the control of a valve governed by calorimeters of known type and so adjusted as to provide a mixture of slightly less calorific value than the minimum of the range, usually 900-1200 calories, of the producer gas. The flue gas is preferably added after the producer gas has passed through the scrubbers.
Patent GB-1336110-A (GB)
Title: Liquid heating devices
IPC: F24H1/28
Filed: 1972-03-16
Abstract: 1336110 Liquid heaters NIPPON GAKKI SEIZO KK 16 March 1972 [19 March 1971] 12424/72 Heading F4A In a liquid heating device for heaters or boilers for storage and supply of a hot liquid to be heated a combustion chamber 12 is provided with a container 11 for the liquid to be heated and a burner unit 14 is arranged to direct a flame downwardly into the combustion chamber, the base of which is provided with an outlet 23 which serves as a cleaning port for the combustion chamber. The outlet 23 is welded to an extension 25 forming a drain tube. The internal surfaces of the device arranged to be in contact with the liquid to be heated are given a protective enamel coating. The burner unit 14 is mounted detachably on a cover member 30 and an exhaust tube 13 is provided on top of the cover member 30 to collect exhaust gases passing from the combustion passage 18 to the upwardly extending passages 19. The liquid to be heated enters at inlet 15 and leaves by outlet 16.
Patent GB-810669-A (GB)
Title: Means for viewing transparent pictures
IPC: G03B23/10
Filed: 1956-04-24
Abstract: 810,669. Transparency viewer. CLARKE, T. H. July 22, 1957 [April 24, 1956], No. 12450/56. Class 97(1) Means 'for viewing transparent pictures comprises a transparent cylinder for carrying one or more series of transparent pictures, a transparent rotatable drum which provides a mounting for the said cylinder, the drum being rotatable about its axis by means of a manually or power driven shaft, and a casing for housing the cylinder and drum and provided with one or more eyepieces to admit of the viewing of the pictures. As shown, two lengths of film 4 and 5 each carrying a series of stereoscopically related pictures are mounted in a pair of channels 6a, 6b in a transparent cylindrical sleeve 6 which fits within a transparent drum 7 closed at the end 7a and secured to a shaft 8. The shaft 8 may be rotated intermittently by means of a Geneva mechanism. The film 4 is illuminated directly from lamp 10 and the film 5 by reflection from the conical mirror 11, and both films are viewed by eye-pieces in the housing 9-one opposite each film.
Patent GB-197525-A (GB)
Title: Improvements in fasteners for chains
IPC: A01K1/064
Filed: 1922-05-03
Abstract: 197,525. Arx, A. von. May 3, 1922. Hooks, safety.-In chain couplings of the kind 'comprising a bar a having an arm e pivoted at one end d thereof and adapted to be held alongside the bar to secure a chain link p, the fastening for the arm e comprises a turn-button h adapted to be passed through a slot in the arm and then to be turned to secure the arm. A spring within a guide l holds the button h in engagement with grooves q in the arm e to prevent it from rotating.
Patent GB-611329-A (GB)
Title: Improvements in or relating to acoustic instruments such as loud speakers and directional microphones
IPC: H04R1/34
Filed: 1946-04-25
Abstract: 611,329. Sound magnifying and directing apparatus. CHARLIN, A. M. B. April 25, 1946, No. 12516. Convention date, Oct. 7, 1943. Addition to 611,179. [Class 13] Instruments such as loud-speakers or directional microphones provided with annular reflectors as in the parent Specification have the screens or reflectors in the concave part of a conical diaphragm. The interior reflector 5 may be pointed as shown, and the outer 4 cylindrical so that the space between them increases according to an exponential law. The diaphragm 1 may be formed with corrugations 7, 8 and 9 to lessen its response to high frequencies.
Patent GB-1085086-A (GB)
Title: Antifriction screw and nut assembly
Inventor: GREBY DANIEL FRANK
IPC: F16H25/22
Filed: 1965-03-24
Abstract: 1,085,086. Screw and nut gearing. TEXTRON Inc. March 24, 1965, No. 12516/65. Heading F2Q. A screw and nut mechanism has recirculating rollers 28 in an endless passage formed by complementary V-shaped grooves 30, 38 in screw 22 and nut 26 and a channel 46 connected by a strap 66 to nut 26, the channel having parallel end portions in V-shaped grooves in the end of nut 26 and having a twisted central portion so that the rollers, which have a common orientation, roll on the same opposed surfaces of the grooves within the nut. The endless passage is substantially rectangular in cross-section and the rollers have a diameter slightly longer than their length. The rollers may be slightly crowned, Fig. 14 (not shown). In Fig. 8 (not shown), two nuts are connected together by bolts with a spacer between the nuts, the rollers of the two nuts rolling on opposite faces of the grooves. By adjusting the thickness of the spacer, which may be a compression spring, the rollers may be preloaded to eliminate any axial play of the nuts.
Patent GB-220073-A (GB)
Title: An improved reciprocating engine applicable as a motor, pump, exhauster, or compressor
IPC: F04B27/02
Filed: 1923-05-10
Abstract: 220,073. Hurd, F. W. May 10, 1923. Crank-actuated pumps; assembling. -The cylinder A of a steam-engine pump or compressor carries a doubletruck piston A<1>, and both are sufficiently large and provided with side apertures A<2>, A<3> respectively to accommodate internally the crank B, B<1> with the swinging end of the connecting-rod B<2>, and permit the assembly of the crank-shaft A<4> and connecting-rod. The crank-shaft is mounted in bearings carried in the cylinder wall apertures.
Patent GB-1502373-A (GB)
Title: Method of manufacturing a contact body and a contact body manufactured by the method
IPC: B32B19/08
Filed: 1975-03-26
Abstract: 1502373 Asbestos laminate CARL MUNTERS AB 26 March 1975 [9 April 1974] 12637/75 Heading C1A [Also in Divisions B1 B5 and F4] A temperature-resistant contact body of low heat-expansion coefficient comprises layers of asbestos arranged to bear against one another at spaced positions to form through channels and sintered together with one or more added substances which overall contain Si and Al, the sintered layers including (by wt.) 45-55% SiO 2 , 30-45% Al 2 O 3  and 10-20% MgO. The body may comprise alternating corrugated layers, optionally with interposed plane layers, glued with water glass and cut from a block or coiled to a desired shape. The layers may be chrysotile asbestos fibre papers which are sintered at 1000-1250 C. Sintering additives may be included in minor amount. In embodiments: (1) The body blank is immersed (i) in water-glass of composition Na 2 O. 1À6-4 SiO 2  which is gelled with alcohol and treated with acid, ammonium salt solution or CO 2  gas to precipitate SiO 2 , and then (ii) in a colloidal Al 2 O 3  solution which is then dried. Immersions (i) and (ii) are repeated until sufficient Si and Al is present. (2) One or more of the substances is added to the fibre bulk from which the paper is made, e.g. solutions or suspensions of kaolin, SiO 2  + (Al 2 O 3 , AlO(OH) or Al(OH) 3 ), or Al 2 O 3  + pyrophyllite. The papers may be made handleable by incorporating up to 50% organic binder, which is burnt out during sintering. The papers are wet with water-glass for shaping. Specified uses: moisture and heat exchange, cooling towers, catalyst carriers for exhaust gas treatment.
Patent GB-768658-A (GB)
Title: Photographic contact printing and developing apparatus
Inventor: DRUCE WILLIAM JOHN
IPC: G03B27/30
Filed: 1953-05-06
Abstract: 768,658. Photography. ENGELHARD INDUSTRIES, Ltd. May 6, 1954 [May 6,1953]. No. 12679/53. Class 98(2) An arc tube 4 in a photographic printing and developing apparatus is provided with electric heating means separate from the tube for reducing the burning in period of the arc. Preferably a heating coil 11<SP>1</SP> is connected in series with the arc electrodes and the leads 11 both enter the apparatus from the same end. As shown, a jacket 13 encloses the arc tube 4 and air is passed, under pressure, over the jacket to cool the tube 4. A translucent printing cylinder 18 is rotated by belts 21, on rubber covered rollers 22 and is supported on bearings in end walls 19 and by rollers 24. In Fig. 1 (not shown) a developing apparatus is provided behind the printing cylinder in the printer cabinet and comprises two hori- . zontal rollers arranged as in a mangle, the lower one, of hard rubber, being partially immersed in a tank of developer solution and the upper one being of sponge rubber. The developer tank is fed from a reservoir, the level of the solution therein being closely controlled by means described in Specification 768,659. The developed print may be dried by air heated by the arc tube. The developer tank and the printing cylinder 18 may readily be removed from the apparatus.
Patent GB-1350990-A (GB)
Title: Synthetic wood
IPC: B29C33/38
Filed: 1971-05-03
Abstract: 1350990 Moulding plastics articles having a wood grain surface; laminates INMONT CORP 3 May 1971 [4 May 1970] 12681/71 Headings B5A and B5N A method of producing plastics articles having a moulded imitation wood grain surface comprises casting a vinyl plastisol or an unsaturated polyester resin in a silicone rubber mould; the mould is produced using a natural wood surface which is first cleaned by scrubbing with a soft wire brush, sanding, and air blasting to remove loose material from the wood. The mould is wet out before casting by wiping over with either the resin to be cast, or, in the case of polyester, with the cross linking monomer or a dilute solution of the resin in the monomer. The moulded surface may be finished by polishing and/or staining operations, and in some cases an offset print of the wood surface used to make the mould is applied to the moulded surface to give the correct colour variation. The moulded article may be a sheet in which case it may be laminated, e.g. by use of a neoprene rubberphenolic resin contact adhesive to a rigid support of hardboard, chipboard or plywood. Reference has been directed by the Comptroller to Specification 1,151,053.