baber/WOPTO huggingface dataset:
Patent GB-439508-A (GB)
Title: Process for the manufacture of diphenylmethane derivatives
IPC: C07C63/72
Filed: 1934-06-08
Abstract: 2<1> : 5<1>-Dihalogen-4<1>-alkyl-diphenyl methane-2-carboxylic acids (benzyl-o-benzoic acids) are obtained by causing halogens or agents yielding halogen to react on the corresponding alkylbenzylbenzoic acids in the presence of inert solvents and halogenating catalysts. According to examples, 4<1>-methylbenzyl-o-benzoic acids (obtainable by reducing the corresponding benzoylbenzoic acid), and its 3<1>-chloro derivative, are chlorinated and brominated in solvents such as trichlorobenzene, glacial acetic acid, nitrobenzene, and carbon tetrachloride.
Patent GB-1003142-A (GB)
Title: Improvements in or relating to aircraft launching apparatus
Inventor: BYRNE JOHN JAMES
IPC: B64F1/06
Filed: 1962-02-26
Abstract: 1,003,142. Aircraft launcher. E. W. BLISS CO. Feb. 26, 1962, No. 17127/65. Divided out of 1,003,141. Heading B7G. An aircraft launcher includes jet turbines 2 coupled by shafts 3 and clutches 4 to reels 22A, 22B on to which tapes 20A, 20B are wound, the tapes being connected to a steel wire cable 12 having a launching chock guided in track B. The tapes are wound on to the reels in a spiral coil having a width which is substantially that of the tape. In Fig. 1 not shown, both reels are driven by a single turbine mounted at one side of runway R. Specification 993,057 also is referred to.
Patent GB-632600-A (GB)
Title: An improvement in or relating to binding devices for papers and periodicals
IPC: B42F11/00
Filed: 1947-06-30
Abstract: 632,600. Filing papers. WATKINSON, A. June 30, 1947, No. 17129. [Class 146 (i)] A method of binding papers, periodicals &c. consists in applying to the back edge portion of each item to be bound two or more U-shaped tabs c, the two legs of each tab having aligned holes c<SP>1</SP> so that the tabbed papers &c. b can be placed between two covers a having holes a<SP>1</SP> aligned with those in the tabs and so that separate lengths of flexible binders d can be passed through each set of perforations and these ends secured at the back of the assembly. The assembly can be used as a loose leaf file, and may, when a desired number of papers have been added, be transformed into a permanently bound volume by sealing the back edges of the papers &c. and the binders d, with an adhesive strip e over a stiffening spine f. Specification 6108/00, [Class 146], is referred to.
Patent GB-508137-A (GB)
Title: Improvements in or relating to a process for treating fibrous material
IPC: D06M15/693
Filed: 1938-06-09
Abstract: 508,137. Depositing rubber from latex. INTERNATIONAL LATEX PROCESSES, Ltd. June 9,1938, No. 17134. Convention date, June 19, 1937. [Class 70] Rubber is deposited on fibres free from coagulant by treating them with a latex composition that has a pH in the isoelectric zone, and which contains sufficient protective agent to render the latex stable at the temperature of treatment, but unstable in the presence of fibres. The fibres may be immersed in the latex and allowed to remain therein until the required amount of rubber has been deposited, or they may be removed and squeezed so that they contain a definite amount of latex. The treatment may be carried out at room or elevated temperatures. Numerous examples are given in the Specification of which the following is typical.-A latex compound consisting of rubber (60 per cent latex) 100 parts, potassium hydroxide 2 parts, glue 0À4 parts, " Aquarex D " (stabilizer) 1À25 parts, mercapto-benzothiazole 0À5 parts, dimethylammonium-dimethyl dithiocarbamate 0À5 parts, casein 4 parts, sulphur 2 parts, zinc oxide 2À5 parts, " BLE " (antiager) 0À5, water to bring solids content to 40 per cent, was made into a bath containing 0À9 parts solids of above mix, 0À2 parts of "Aquarex D," 4À8 parts of formic acid, and 94.1 parts of water. The pH of the bath was 1À73. Woollen fabric immersed in 20 times its weight of this bath for 10 minutes at 80‹ F., rinsed and dried, increased in weight by 16À3 per cent, about 90 per cent of the rubber in the bath being deposited.
Patent GB-313013-A (GB)
IPC: H05K9/00
Filed: 1929-06-04
Abstract: 313,013. Kramolin, L. L. de. June 1, 1928, [Convention date]. Receiving-sets, construction of.-The metal plate for screening from each other the components of a receiving set is adapted to carry the latter, and divide the set into two parts, the permanent components being substantially enclosed while the interchangeable components are easily accessible. The metal plates a, b, Fig. 1, which may be bent from a single sheet, divide the rectangular interior of the cabinet into two unequal chambers, the smaller of which accommodates the valves and similar interchangeable components, while the larger contains the condensers &c., which may be attached to its walls. Partitions c, Fig. 2, perpendicular to the screens, further subdivide the interior, and serve also to stiffen the structure.
Patent GB-745890-A (GB)
Title: Improvements in or relating to a method and process for preparing and treating finely divided pigmentary silica
IPC: C09C1/30
Filed: 1952-10-07
Abstract: The surface area of finely divided silica produced according to Specification 745,822 is stabilized by heating the silica at a temperature above 50 DEG C., preferably 80-100 DEG C., for at least 30 minutes in aqueous dispersion.  The "bound sodium" content of the silica may be reduced by treatment with acid, e.g. carbon dioxide or hydrogen sulphide or acetic, oxalic, sulphurous, phosphorous, phosphoric, sulphuric, hydrochloric or nitric acid, or a salt containing a cation which may be exchanged for sodium, e.g. ammonium, lithium, calcium, magnesium, strontium, barium, zinc, copper, nickel, cobalt, aluminium, iron and chromium salts. Treatment with acid is preferably carried out after the heat treatment.  The sodium content may be reduced to below 1 per cent.  The treated silica may be dried at 100-150 DEG C. or may be partially calcined.  The product may contain 2-10 per cent both of "free" and "bound" water.  It has an average particle size below 1 micron and a surface area of 25-200 sq. m./gm.
Patent GB-818314-A (GB)
Title: 2-butyne-1:4-diol
Inventor: ELLINGER LEO PHILIPP
IPC: C07C33/046
Filed: 1957-05-30
Abstract: 2-Butyne-1 : 4-diol is prepared by suspending the copper acetylide catalyst or the copper silicate material from which the catalyst is derived, in aqueous formaldehyde, circulating acetylene (or a gas containing same) under superatmospheric pressure through the solution at a flow rate sufficient to maintain the suspended material in suspension and subsequently separating the catalyst from the reaction product.  The following features are preferred: water, propargyl, alcohol and formaldehyde are condensed from the acetylene or acetylenecontaining gas leaving the reaction vessel; the condensed liquid is returned to said vessel at least during the early stages of the reaction, it being particularly preferred that any condensed liquid not so returned is collected and fed to the reaction vessel during the early stages of a succeeding batch.  In the example, copper silicate (obtained by mixing solutions of copper nitrate and sodium silicate), formaldehyde and sodium bicarbonate were charged into a reactor and acetylene at 20 atm. passed after venting with nitrogen; the initial temperature of 80 DEG  C. was raised to 105 DEG C. during 1/2 hour and maintained at 105-110 DEG  C. for 12 hours.ALSO:2-Butyne-1 : 4-diol is prepared by suspending the copper acetylide catalyst or its copper silicate precursor in aqueous formaldehyde, circulating acetylene or gas containing acetylene under superatmospheric pressure through the solution at a flow rate sufficient to maintain the suspension, the catalyst being subsequently separated.  The following features are preferred: water, propargyl alcohol and formaldehyde are condensed from the outgoing reaction gases; the condensed liquid is returned to the reaction vessel at least during the early stages of the reaction, it being particularly preferred that any condensed liquid not so returned is collected and added during the early stages of a succeeding batch. In the example, copper silicate (obtained by mixing copper nitrate and sodium silicate solutions), formaldehyde and sodium bicarbonate are charged into a reactor and acetylene at 20 atm. passed in after venting with nitrogen (reaction pressure 18-20 atm.); the initial temperature of 80 DEG  C. is raised to 105 DEG  C. during half an hour and maintained at 105-110 DEG  C. for 12 hours, the product comprising an aqueous solution containing 26 per cent butynediol and 7.3 per cent propargyl alcohol, besides the aqueous condensate containing propargyl alcohol and formaldehyde.
Patent GB-1060963-A (GB)
Title: Improvements in or relating to supervisory signal generating arrangements for automatic telephone systems
Inventor: MINNEY ALAN BERNARD
IPC: H04M19/02
Filed: 1964-04-27
Abstract: 1,060,963. Bell simulators. GENERAL ELECTRIC CO. Ltd. April 14, 1965 [April 27, 1964], No. 17307/64. Heading G5J. [Also in Division H4] A ringing tone generator comprises a source of audio frequency signals the output from which is gated by recurring electric pulses to produce a ringing tone signal comprising periods of audio frequency with a predetermined cadence. The arrangement is such that each period of audio frequency terminates with a predetermined decaying resonance. Preferably the audiofrequency signal is composed of a number of individual frequencies produced simultaneously, their frequencies and amplitudes being selected to simulate the sound of a bell. The Figure shows the preferred embodiment in which frequencies of 25, 550, 840, 1125, 1700 and 2900 c.p.s. are generated by oscillators 5 to 10, amplified, and mixed in the ratio 6: 8: 4: 4: 9: 9 respectively, in the transformer 14, to provide an audio-frequency output simulating the sound of a bell, which is applied to a gate circuit 3 comprising transistor 19. Further inputs to the gate circuit are provided from the pulse generator 2 in which a pulse source 43, of 5 p.p.s., feeds a three-stage binary counter 44 which in turn feeds a two-stage binary counter 48. Outputs from the two counters are gated together in " OR " gates 53 and 54 to produce two identical pulse trains each comprising 400 millisecond pulses spaced alternately by 200 milliseconds and two seconds. One of these pulse trains is inverted in amplifier 41 so that complementary signals each varying between earth potential and + 12 volts are provided to the gating inputs of circuit 3. The gate circuit is such that the RC circuits including capacitors 27 and 35 allow transistor 19 to be switched on rapidly but provide an exponential switch off so that the audio output on terminal 4 only gradually decays to simulate the decay of sound from a bell.
Patent GB-111697-A (GB)
Title: Improvements in Hydraulic Presses.
Inventor: BRIDGE JONATHAN
IPC: B29C43/32
Filed: 1916-12-02
Abstract: 111,697. Bridge, J. Dec. 2, 1916. Presses; framing.-Hydraulic presses for closing tyre moulds and other purposes have a head a formed with a central opening through which the moulds may be passed. A cover j for the opening has an interrupted flange, which may be engaged with an interrupted flange f above an annular groove g, the engaging portions being so formed as to interlock in a radial direction, and a gap c may be formed in the head.
Patent GB-1199885-A (GB)
Title: Corrosion-Resisting Coating Compositions
IPC: C09D5/10
Filed: 1969-04-02
Abstract: 1,199,885. Cooling composition. BALM PAINTS Ltd. 2 April, 1969 [9 April, 1968], No. 17313/69. Heading C3B. [Also in Divisions B1-B2] A coating composition for application to furnace metal surfaces comprises: zinc dust and hydraulic cement in a respective weight ratio of 1 : 1 to 5 : 1 dispersed in a solution, in an inert solvent, of a phenoxy resin; the resin comprises 3-18% by wt. of the composition. Phenoxy resins are substantially linear polyethers prepared by condensation of epichlorohydrin and a dihydric polynuclear phenol and are substantially free of epoxy groups The composition may also contain up to 0À3% by wt. of an antigassing agent, e.g. CaO and 0À2-2% by wt. of an antisettling agent, e.g. a Bentonite clay. A suitable inert solvent is a mixture of 2-ethoxy ethanol acetate, xylene and methyl ethyl ketone. The solvent preferably has a water content < 0À1% by wt. The composition may also contain a polyisocyanate which serves to cross-link the phenoxy resin; the combined content of phenoxy resin and polyisocyanate may comprise 3-18% by weight of the composition.
Patent GB-409523-A (GB)
Title: Motion dampers for use on motor-vehicles
IPC: B60G15/04
Filed: 1933-06-17
Abstract: 409,523. Shock-absorbers; vehicle suspensions. ALVIS CAR & ENGINEERING CO., Ltd., and CLARKE, G. T. SMITH-, Holyhead Road, Coventry. June 17, 1933, No. 17328. [Classes 108 (ii) and 108 (iii).] A motion-damper comprises a pair of opposed cone-like members 21, 24, the member 24 being fixed to a stationary support while the member 21 is fixed on a spindle 17 spring-pressed to bias the cone-like members into frictional engagement with a pair of co-operating surfaces 16, the spindle 17 being axially-slidable but non- rotatable relatively to the stationary support. As shown, the surfaces 16 are formed by outwardly-flared ends of the tubular inner end of a radius arm 11 connected at its outer end to a motor-vehicle front wheel 12 which is also connected to the vehicle frame 13 by an upper, transverse spring 14. The member 24 is recessed to receive the spring 27 which acts on the spindle 17, the spring being enclosed in a casing 29 and being adjustable by a nut 28.
Patent GB-1220265-A (GB)
Title: Recirculating system for flowable spray media
Inventor: WIGGINS RICHARD F
IPC: B05B9/04
Filed: 1968-04-10
Abstract: 1,220,265. Forcing liquids by gaseous pressure. GYROMAT CORP. April 10, 1968 [April 28, 1967], No.17402/68. Heading F1R. [Also in Division B2] A circulating system for supplying a medium to a spray gun comprises two tanks, each of which can be pressurized so as to act as the supply tank while the other tank acts as a recovery tank to receive overspray returned from the spray chamber containing the spray gun, and control means for interchanging the functions of the two tanks. A conveyor belt 12 travels beneath a spray gun 10, overspray being collected in a trough 16 and then passing through a separator 17 in which the spray medium (which may be an emulsion or solution of polytetrafluoroethylene) is separated from the entraining air and discharged to a return line 41. Compressed air is supplied from a line 43 to pressurize either a tank A or a tank B via a respective solenoid valve 37 or 57, whereby spray medium is forced from the pressurized tank via a respective check valve 31 or 51 to the spray gun 10. The spray medium recovered from the overspray passes from the return line to the unpressurized tank B or A via a respective solenoid valve 53 or 33 and check valve 55 or 35. When the liquid level in the pressurized tank has fallen below the level of a respective electrical probe PA or PB, the solenoid valve 53 or 33 is closed to stop the return flow to the unpressurized tank, and the solenoid valve 57 or 37 is opened to the compressed air line 43 to start the pressurization of this tank. Until this pressurization is complete, the other tank remains pressurized to avoid interruption of supply to the spray gun. On completion of the pressurization, as sensed by a pressure switch PSB or PSA, the solenoid valve 37 or 57 of the initially pressurized tank is closed to the compressed air line 43 and opened to atmosphere and its other solenoid valve 33 or 53 is opened, thereby completing the reversal of the functions of the two tanks. The reversal sequence is repeated whenever the level in the pressurized tank falls below the level of its probe PB or PA. Whenever both probes PA and PB are simultaneously uncovered by liquid, replenishment of the liquid is necessary. To this end, the simultaneous uncovering of both probes PA and PB causes opening of a solenoid valve 63 whereby tank A is replenished from a pressurized tank C until the level reaches a probe PC, whereupon the valve 63 is closed. An electrical circuit for the automatic control of the solenoid valves by the liquid level probes and pressure switches through the intermediary of relays is described.
Patent GB-931069-A (GB)
Title: Punching machine
IPC: B26F1/02
Filed: 1962-05-07
Abstract: 931,069. Punching apparatus. EASTMAN MACHINE CO. May 7, 1962 [June 1, 1961], No. 17418/62. Class 31(2). A punching machine comprises a punch 16 actuated by a solenoid 25 controlled by a switch 35, a wheel 40 rotatable by contact with the work to be punched and having a gear 44 engageable by a toothed segment 45 which is movable into and out of engagement with the gear and operates the switch when in engagement with the gear, and a lever 90 having a part 93 engaging the toothed segment to move the segment out of engagement with the gear and permit rotation of the wheel without actuation of the segment and switch. The toothed segment is mounted on a rod 47 which carries a cam 50 having a projection 51 engageable with a spring-arm 37 of the switch. When the wheel is rotated in one direction by movement of the machine over a workpiece to be punched, the gear 44 rocks the segment 45 which in turn rocks the cam to cause the projection 51 to actuate the switch and energize the solenoid 25. The armature 24 of the solenoid is thus moved downwardly against a light spring 30 so that a block 28 strikes the upper end of the punch which moves downwardly against a heavier spring 22 to punch the workpiece. During the movement of the punch, a surface 56 displaces a ball 57 and the rod 47 against a spring 48 so that the segment is disengaged from the gear and returns to its initial position wherein it reengages the gear when the punch has been returned to its upper position by the spring 22. If the machine is moved over the workpiece in such a direction as to rotate the wheel 40 in the opposite direction, the projection 51 moves in the opposite direction to rock a second cam 60 so that a projection 62 thereon engages the lever to operate the switch. Rocking of the lever 90, which has an enlarged portion 98 adjacent a handle 71, about a pivot 91 and against a spring 96 causes the part 93 to move the rod 47 axially to disengage the segment from the gear without rocking the cam 51 so that the machine can be moved over the workpiece without actuation of the switch. A second lever 67 is movable about a pivot 68 and against a spring 77 to cause a cam-shaped portion 72 to rock the cam 60 and actuate the switch so that a workpiece can be punched independently of the movement of the machine over the workpiece.
Patent GB-1146094-A (GB)
Title: Improvements relating to automatic control systems
Inventor: SMITH HENRY ROBERT
IPC: B21B37/46
Filed: 1967-04-17
Abstract: 1,146,094. Control system. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. Feb.28, 1968 [April 17, 1967], No.17500/67. Heading G1N. Transfer of strip material from a reel UR, Fig. 1, to a reel WR is automatically slowed down as the end of the strip is approached, by an arrangement comprising a detector (SVD 1, Fig. 3, not shown) responsive to reel speed T n , and to linear strip speed T i . The signal U 1  corresponding to strip speed T i  is divided (at P) by the radius r 1  which the reel UR is known to have when it carries that amount of strip which can be just wound off before standstill when a fixed deceleration is effective from a maximum velocity. Relays (R1, R2) operate when the output of the detector (SVD 1) becomes zero (i.e. when T n  = U 1 /r 1 ) and these close and open respectively contacts (r 1  and r 2 ) in a time delay circuit comprising three amplifiers (A1, A2, A3) the first (A1) being arranged as an integrator. These amplifiers produce signals respectively proportional to: the length of strip passing during the time from the operation (t 3 , Fig. 2, not shown) of the relays to the time (t 2 ) of actual commencement of deceleration; the length of strip passing during the time (t 2  to t 1 ) which the strip takes to acquire a steady deceleration; and the length of strip passing from the time (t 1 ) to standstill (0). A detector (SVD 2) gives zero output and commences the deceleration when a signal (L<SP>1</SP>) representing the length, after rolling, of strip corresponding to the said radius (r 1 ) of unrolled strip, minus the output of amplifier (A 1 ), equals the other two outputs (from A2, A3) representing strip length from time t 2  to 0. Minor adjustments are made by a potentiometer (AR).
Patent GB-379787-A (GB)
Title: Improvements in or relating to clips
IPC: F16B5/10
Filed: 1931-06-17
Abstract: 379,787. Stud-and-socket fastenings. THOMPSON, J. A., Pangani, Egypt Battery, and BOOTHBY, F. L. M., 4, Woodvale, both in Cowes, Isle of Wight. June 17, 1931, No. 17542. [Class 44.] A device for detachably mounting a panel D or the like on aircraft, boat or car structure E consists of a pin A tapered at its lower end and provided with a transverse pin X. A spring washer C is attached beneath the panel D, and a spring B beneath the structure E ; both springs have diamond or oval holes for the reception of the pin A which is inserted and turned through a right-angle so that the transverse pin X rests in notches in the spring B.
Patent GB-1304081-A (GB)
IPC: D03D47/48
Filed: 1970-04-14
Abstract: 1304081 Forming selvedges NORTH AMERICAN ROCKWELL CORP 14 April 1970 [2 June 1969] 17554/70 Heading D1E Apparatus for forming a tucked-in selvedge has selvedge warp threads 85 spaced from the edge of the fabric to hold the end of a cut pick 17, and means 51 for gripping and cutting the pick intermediate of the selvedge warp threads and the edge of the fabric and then presenting the end to a needle 103 which reinserts it in the next shed. The means 51 reciprocates warpwise and moves up and down to grip the pick 17 with a foot 76 which opens and closes at appropriate intervals, and has a cutting blade 82, Fig. 7, on the opposite side. The needle 103 rotates about its supporting shaft 106 which itself reciprocates warpwise to enter the shed 16 and pull the pick end inside. The knife 82 and foot 76 are attached to spring loaded rods 79 and 71 actuated by a cam 64 as the means 51 slides backwards and forwards. The movements of the needle and the means 51 are brought about by levers 29-32 driven by cams 45-48 on a common shaft 40.
Patent GB-315549-A (GB)
Title: Improvements in or connected with silencers for internal combustion engines
IPC: F01N3/04
Filed: 1928-06-18
Abstract: 315,549. Langdon, A. G. June 18, 1928. Exhaust silencers. -A water - jacketed chamber 1 has an exhaust gas inlet 5, and surrounds an expansion chamber 4 having an exhaust 7. The internal wall of the chamber 1 has ribs or fins 3 contacting with the wall of the chamber 4 which, on the side remote from the inlet 5, has slots 6 formed therein. A fairway for the gases is formed through the fins near the inlet 5. Water from the jacket 2 may be injected through a control valve 8 into the exhaust gases. The fins 3 may be curved, or arranged as one or more helices.