baber/WOPTO huggingface dataset:
Patent GB-637604-A (GB)
Title: Improvements in the preparation of oxidised rubber
IPC: C08C19/04
Filed: 1947-11-27
Abstract: Semi-fluid vehicles obtained by milling natural unvulcanized rubber at a temperature of 100-160 DEG  C. with a small proportion of a peptizing agent such as an aryl mercaptan and thereafter bringing about extensive oxidative breakdown by agitation in oxygen or air until a semi-fluid condition is reached are used in the manufacture of paints, varnishes and lacquers.  In examples: (1) rubber treated with 1 per cent of mercapto-benzthiazole is worked in an internal mixer with free access to air and is then p  mixed with linseed oil; (2) a material similar to the oxidized product of (1) is dissolved in white spirit to which linseed oil, varnish gums or synthetic resins may be added.  Specifications 407,038, 417,912, 490,292, 519,998, 520,653 and 637,594, [all in Group V], are referred to.ALSO:A lacquer is made by milling natural unvulcanized rubber at a temperature of 100-160 DEG  C. with a small proportion of a peptizing agent such as an aryl mercaptan and thereafter bringing about extensive oxidative breakdown by agitation in oxygen or air until a semifluid condition is reached and then incorporating this material with 1/8 sec. nitrocellulose in butyl alcohol, tricresyl phosphate and butyl acetate.ALSO:Semi-fluid vehicles for use in the manufacture of paints, varnishes and lacquers are obtained by milling natural unvulcanized rubber at a temperature of 100-160 DEG C with a small proportion of a peptising agent such as an aryl mercaptan and thereafter bringing about extensive oxidative breakdown by agitation in oxygen and air until a semi fluid condition is reached.  In examples (1) Rubber treated with 1 per cent of mercaptobenzthiazole is worked in an internal mixer with free access to air.  The degraded product is then mixed with linseed oil.  (2) A similar product was dissolved in white spirit to which linseed oil, varnish gums, or synthetic resins may be added. Specifications 407,038, 417,912, 490,292, 519,998, 520,653 and 637,594 are referred to.
Patent GB-299807-A (GB)
Title: Improvements relating to the atomising, distributing and vaporising of the fuel in internal combustion engines
IPC: F02B19/04
Filed: 1928-10-30
Abstract: 299,807. Espholin, J. Nov. 1, 1927, [Convention date]. Cylinders receiving liquid fuel. - In engines in which liquid fuel is injected into the cylinder at the end of the compression stroke, the fuel is injected substantially at right angles to the cylinder axis and is spread by impact with a convex surface on the piston face, and takes a fan formation owing to the movement of the piston during the injection. In the case of a two-strokecycle engine, this surface may be the usual scavenging-air deflector, or, as shown, a tapering knob 2 extending from the deflector. The combustion chamber, in this case, is symmetrical about the cylinder axis, a cross-section being as shown, and the wall 13 are mounted on a heatinsulating ring 14, air spaces being left between the surfaces, and clamped by a ring 15. An electrically-heated coil 17 is provided for starting.
Patent GB-211554-A (GB)
Title: Improvements in or relating to apparatus for use in pigeon timing clocks
IPC: G07C1/26
Filed: 1922-11-18
Abstract: 211,554. Wood, G., and Wood, J. H. Nov. 18, 1922. Time checking apparatus, check and token.- In apparatus for recording the time of arrival of homing pigeons having a clockwork mechanism fixed to a division plate of the casing and which supports the pigeon ring drum, the drum is intermittently rotated through a bell crank lever and pawl member by a key lever and is provided with a spiral groove and a recess on its periphery associated with a radially-movable pricker mechanism for recording the time by perforating an hour and minutes disc and with a mechanism for locking the detachable front after the initial operation and until the ring drum has completed a revolution. The casing 1 which is made of metal, such as aluminium, is provided on its top with a handle jointed to lugs 3, a boss 4 through which the operating spindle 5 passes, and an aperture for the reception of the pigeon rings; the front 11 is detachable and slides on guides 16 on the side members and has a projection 20 that is adapted to engage a pivoted locking arm 22 when the projection 77 on the arm is moved out of a recess 76 on the ring- drum 27 on the initial operation thereof. Lugs 14 to which the guides are attached' support a division plate 15 carrying the clockwork 85 and a framework 25 supporting the ring drum that is provided with ring receptacles 28 and divisions marked " open " and "stop." To the bottom of the drum is fixed a ratchet wheel 33 provided with projection 53 adapted to be engaged by a one-way pawl member 48 that is pivoted to a lever 42 mounted on the boss of the drum spindle and actuated by a bell crank lever 39 on a spindle 10 provided with pins 9 engaging slots 8 in the recessed end of the operating spindle 5. During the intermittent rotation of the drum the projections 53 engage and rock a bell crank lever 54 having a projection 57 adapted to ride over an arm 61 of a bell crank lever 58 and to strike against it on the return of the lever 54 to normal to depress, through an arm 62 of the lever 58, a frame 64 on the spindle 59. The frame 64 rests on an arm 66 carrying the pricker 75 and on its depession perforates the time record discs 23, 24. The arm 66 is mounted on a slidable rod 67 the top of which engages a projection 71 on a lever 72; this lever has a projection 74 engaging a spiral groove 31 in the periphery of the drum 27 so as to displace the pricker 75 radially for each succeeding record.
Patent GB-915469-A (GB)
Title: Lathe or like tool supporting apparatus
IPC: B23Q1/48
Filed: 1960-09-13
Abstract: 915,469. Tool-holders. SAGINAW MACHINE & TOOL CO. Sept. 13, 1960 [Jan. 11, 1960], No. 31567/60. Class 83 (3). A device for adjustably mounting a lathe or like tool-holder 64 comprises a base 1, an arm 2 pivotable about a spring-loaded pivot 4, a leveroperated screw 22 for swinging arm 2, and a dial gauge 32 for indicating the amount of adjustment. A spring-urged stud 16, having a clearance in a bore 13 in arm 2, to allow swinging of the latter carries a nut 18 for clamping the arm in its adjusted position, and screw 22 axially fixed by columns 29, 30, has a toothed wheel secured thereto which cooperates with a pawl on a lever 26, so that on rotation of the latter, screw 22 produces swing- ing of arm 2. Dial gauge 32 fixed to face 40 of arm 2 engages a projection 55 on a plate 51 Fig. 4, journalled to a pin 52 in arm 2, and a pin 56 in base 1 engages a slot 58 in plate 51. Arm 2 has two passages 44, 45, and the anvil 37a of the dial gauge passes through passage 44 when a left-hand tool is used and through passage 45 when a right-hand tool is used, the plate 51 in this case being reversed. The toolholder 64 slides in a channel 61 on arm 2, is adjusted to maintain a distance " x " by screws 73, and is secured by' screws 68. Distance " x " is maintained at a distance half that of distance " y " between pivot 4 and pin 56, so that the feed applied to the tool 70 will indicate on the dial gauge the amount of material removed when, e.g. boring a hole. In operation with tool 70 set to distance " x " and requiring adjustment, lever 26 is actuated, thus swinging arm 2 about pivot 4. Pin 56 rotates plate 51 and projection 55 on the latter moves anvil 37a of the dial gauge until the required adjustment is obtained, and arm 2 is then secured to base 1 by nut 18. A pin 76, Fig. 7, secured in base 1 and having a clearance in a bore 77 in arm 2, may be fitted to limit the swing of arm 2, so as to prevent pointer 38 moving through more than 180 degrees, which would give an incorrect reading. Scales 82, 80 may be provided on arm 2 so that after setting the tool the position of pointer 38 is read off on scale 80, and scale 82 is set to the same reading on a line 81, and even though the bezel on dial gauge 32, or arm 2 are moved inadvertently, the operator can reset the tool to the correct position. Similar scales 90, 93 may be provided for recording the position " x " of tool 70, along with a dial gauge 85 which engages the end of tool-holder 64.
Patent GB-836654-A (GB)
Title: Water-soluble phosphorus derivatives of saturated or unsaturated compounds of the pregnene series
IPC: C07J5/00
Filed: 1957-10-09
Abstract: The invention comprises the 21-phosphoric acid esters of 4-pregnenes or 1,4-pregnadienes (other than aldosterone) having keto groups in the 3- and 20-positions, a hydroxyl group in the 21-position and possibly in the 17a -position and a hydroxyl or keto group in the 11-position, and of the corresponding 9-halogen substituted compounds, the said esters being di-steroid phosphoric acid esters, and the water-soluble salts thereof, e.g. the sodium, potassium and ammonium salts, and the preparation thereof by treating the required steroid with phosphorus oxychloride in a solvent, e.g. by treating with the stoichiometric amount of phosphorus oxychloride at a temperature not exceeding 6 DEG  C.  The esters may be prepared from cortisone, hydrocortisone, corticosterone, desoxycorticosterone, prednisolone and its 9a -fluoro derivative, and prednisone.  A number of detailed examples are given.ALSO:A hormone active preparation for injection contains as the active ingredient one or more di-steroid phosphoric acid esters derived from steroids other than aldosterone from the 4-pregnene and 1,4-pregnadiene series having keto groups in the 3- and 20-positions, a hydroxyl group in the 21-position and possibly in the 17a -position and a hydroxyl or keto group in the 11-position and the corresponding 9-halogen-substituted compounds, or the water-soluble salts thereof such as the sodium, potassium and ammonium salts, together with other therapeutically acceptable substances.  The esters may be derived from cortisone, hydrocortisone, corticosterone, desoxycorticosterone, prednisolone and its 9a -fluoro derivative, and prednisone.
Patent GB-1102309-A (GB)
Title: Improvements in or relating to the methylation of hydroxy aromatic compounds
IPC: C07C41/30
Filed: 1966-07-14
Abstract: A process for the nuclear methylation of hydroxy aromatic compounds, which are unsubstituted in at least one ortho position or in the para position to the hydroxyl group, is characterized in that methanol in which aluminium methylate is suspended as a catalyst is passed through the liquid hydroxy aromatic compound at 330-420 DEG  C. and a substantial part of the methanol is evaporated. The examples describe the methylation of phenol which gives rise to a mixture containing o-, m-and p-cresol, 2,3-, 2,4- and 2,6-dimethyl-phenol and trimethyl and higher alkylated products together with anisole.
Patent GB-973502-A (GB)
Title: Improved means for connecting articles together in ranks
Inventor: CORNER FREDERICK
IPC: A47C1/124
Filed: 1960-09-14
Abstract: 973,502. Connecting chairs in rows. NEW EQUIPMENT Ltd. Sept. 14, 1961 [Sept. 14, 1960], No. 31669/60. Heading A4U. A device for joining two chairs comprises two sockets 6 in alignment, one on each of the chairs to be joined, the sockets each having a bore open at both ends, a connecting member 2 the ends of which each have a male member adapted to enter the bore and a latch 10 for engagement with that face of the socket which is remote from the other chair. The connecting member comprises a tube 2, a rod 8 loosely fitting the tube having a head or latch 10 at each end larger than the bore of the tube, which heads will each, after being slid through their respective sockets, drop and engage the latching face of the socket. The tube 2 is fitted with collars 4 which form stops against which the entry faces of the sockets can abut.
Patent GB-653238-A (GB)
Title: A process for the manufacture of alkoxy chlorosilanes
IPC: C07F7/18
Filed: 1948-12-07
Abstract: Alkoxy chlorosilanes are prepared by reacting in the liquid phase one or more esters of the formula R4-nSi(OR1)n, wherein R is an alkyl or aryl radical, R1 is an alkyl radical and n is an integer from 1 to 4, with one or more chlorosilanes of the formula R4-mSiClm, wherein R is an alkyl or aryl radical and m is 2 or 3, whereby interchange is accomplished between at least one alkoxy radical and a chlorine atom. The reaction may be effected in the presence of free acid, e.g., hydrogen chloride, which may be formed in situ.  Products obtained by the process are of the type R2SiOR1Cl, RSi(OR1)2Cl, RSi(OR1)Cl2 and ClSi(OR1)3, wherein R and 1 have the above significance.  In the examples, alkoxy chlorosilanes of the above types in which R1 represents methyl and ethyl groups and R represents a methyl group are prepared.
Patent GB-1141200-A (GB)
Title: Switch operating means for use in the control of nuclear reactors
IPC: G21C7/20
Filed: 1966-07-14
Abstract: 1,141,200. Control rods. BROWN BOVERI/ KRUPP REAKTORBAU G.m.b.H. 14 July, 1966 [20 July, 1965], No. 31754/66. Heading G6C. An arrangement for providing a signal when a reactor control rod 9 has reached the bottom of its guide tube 8 comprises an electric switch 3 having an actuating button 12 extending through an opening 11 in a plate 10. Normally, the tip of the button just touches the lower end of a drop wieght 15 suspended by a flange 16 in a sleeve 13 supported by a spring 14. However, upon impact of the sleeve 13 by the rod 9 the spring 14 is compressed and the drop weight 15 actuates the button 12.
Patent GB-389183-A (GB)
Title: Improvements in the cutting cylinders of lawn mowers
IPC: A01D34/52
Filed: 1931-11-17
Abstract: 389,183. Lawn-mowers. FLEMING, J. M., Grangehurst, Lynton Park, Cheadle Hulme, Cheshire, and BARNES, W. H., 9, Badminton Road, Chorlton-cum- Hardy, Manchester. Nov. 17, 1931, No. 31788. [Class 6 (ii).] A rotary cutting cylinder for lawn-mowers comprises a central shaft A having longitudinal gashes a so as to expand the metal locally as at a<1>, Fig. 5, and the spiders B carrying the blades are pressed or driven on the shaft and held frictionally at the expanded parts. The gashes may be formed by a rounded chisellike tool which does not remove the metal but bulges it out on both sides of the gash. Instead of having gashes, the shaft may be knurled as by a tool or rollers. The spiders are driven on either hot or cold. The spider arms b. are twisted spirally to receive the blades which may be bolted thereto.
Patent GB-767550-A (GB)
Title: Cabinet type housing for loudspeakers
IPC: H04R1/28
Filed: 1954-11-03
Abstract: 767,550. Loud-speakers. TESLA, NARODNI PODNIK. Nov. 3, 1954 [Nov. 14, 1953], No. 31799/54. Class 40 (4). A loud-speaker cabinet with the loud-speaker mounted on the front wall has the rear of the loud-speaker loaded by a number of damped sound passages within the cabinet, the length of the largest passage being equal to one-fourth of the wavelength corresponding to the resonant frequency of the loud-speaker. A cabinet of triangular cross-section has a chamber 2 immediately behind the loud-speaker leading into a number of chambers such as 4, 5 of different lengths l1, l2. These chambers may be damped over their entire lengths and may communicate with one another through acoustic impedances. In Fig. 5 the cabinet is of triangular crosssection and the loud-speaker is mounted in the front panel nearer to one end.
Patent GB-228679-A (GB)
Title: Improvements in tipplers for railway wagons and the like
IPC: B65G67/00
Filed: 1923-12-19
Abstract: 228,679. Babcock & Wilcox, Ltd., and Hollick, F. W. Dec. 19, 1923. Rotary tipplers.-Relates to apparatus comprising a L or U-shaped carrier 1 mounted for tipping about a fixed axis 2, Fig. 1, or for tipping at tEe top of the guides 17 of a wagon-tippler hoist, Fig. 5. For holding the wagon during tipping, one or more top clamping jaws 8 are engaged by the wagon during the tilting movement of the carrier, the jaws being carried by a lever or levers 7 operatively connected with weighted levers 10. As shown in Fig. 1, the rail platform is pivoted on the carrier which is provided with a side support 6 for the wagon. The levers 7 are connected with the weighted levers 10 by links 9 and the levers 10 are pivoted at 11. The weights 12 may move in guides in the structure. As shown in Fig. 5, the levers 7 are mounted on pivoted brackets 18 and connected with the weighted levers 10 by ropes &c. 9.
Patent GB-756875-A (GB)
Title: Improvements in or relating to the production of finely divided silica
Inventor: ALLEN EDWARD MERLE
IPC: C01B33/18
Filed: 1953-06-05
Abstract: Finely divided silica is prepared by reacting a finely divided alkaline earth metal silicate, for example calcium silicate of an average particle size of below 0.1 micron with an aqueous solution of ammonium chloride which may also contain, ammonia, and/or sodium chloride using calcium silicate.  Sufficient ammonium chloride to decompose all the calcium silicate is preferably employed.  From 5 to 50 gm./l of free ammonia and from 25 to 100 gm./l of sodium chloride may be employed.  Reaction may be effected by adding an aqueous solution of ammonium chloride to an aqueous slurry of calcium silicate with agitation and heating to drive off free ammonia.  The slurry after removal of ammonia may be treated with an acid, such as hydrochloric, nitric or acetic acid, which forms a water soluble compound with calcium. The calcium silicate may be prepared by various methods and natural products such as wollastonite may also be employed.  Finely divided calcium silicate of the required particle size may be prepared by mixing aqueous solutions of an alkali metal silicate, for example sodium silicate, and calcium chloride under conditions of high turbulence, for example by introducing the two streams closely together into the central area of a centrifugal pump, and in such proportions that an excess of calcium chloride is established.  The calcium silicate is preferably prepared in a concentration of 5 to 150 gm./l.  The alkali metal silicate preferably has the formula M2O(SiO2)x, where x is between 2 and 4.ALSO:Finely divided silica prepared by reacting an alkaline earth metal silicate, e.g. calcium silicate, of an average ultimate particle size of below 0,1 micron with an aqueous solution of ammonium chloride may be employed as a diluent for benzene hexachloride, D.D.T., chlordane and 2, 4-D.
Patent GB-1117861-A (GB)
Title: Improvements in colour projection system
IPC: H04N5/74
Filed: 1965-07-26
Abstract: 1,117,861. Light modulators; colour television. GENERAL ELECTRIC CO. 26 July, 1965 [24 July, 1964], No. 31897/65. Heading H4F. In a colour television image projection system in which two vertical phase diffraction gratings corresponding to the red and blue video signals of the image and a horizontal phase diffraction grating corresponding to the green video signal of the image are formed by an electron beam in a deformable light modulating medium, substantially as described in Specifications 1,096,741; 1,108,463 and 1,108,464, the vertically orientated central portion of the circular colour filter (26, Fig. ], not shown) which transmits only the red and blue components of white light projected thereon and the two side portions which transmit only the green component of the white light are both constructed to transmit a portion of the cyan band and reject a portion of the yellow band of wavelengths of the white light. With this filter true and faithful rendition of colour images are produced, whereas in the prior art systems in which all the light originating from the light source was used, the blue colour was too deep and the red colour too orangish. In the prior art systems the dominant green wavelength was selected by a band pass filter which allowed the green wavelengths from 4750 Š to 5850 Š to be passed and reflected the light energy below and above this band of energies, such light being utilized to produce the blue and red primaries resulting in the blue colour being too deep and the red colour too orangish in the colour images. Conversely if a magenta dichroic filter is provided which results in faithful rendition for the red and blue primaries in the colour image the resultant green colour is too yellowish. According to the present invention the circular colour filter comprises a vertically orientated central magenta filter (80, Fig. 7, not shown) the two side segments (81) and (82) being green filters. Any light falling on the green filter and not passed by the green filter is rejected from further use in the system and any light falling on the magenta filter and not passed thereby is also rejected from further use in the system. The transmission characteristics of these filters are shown in Fig. 9, from which it can be seen that both filters transmit a common band of wavelengths in the range 4800 Š to 5000 Š at the 50% transmission point and reject a band of wavelengths in the range 5850 Š to 6000 Š at the 50% transmission point.
Patent GB-511734-A (GB)
Title: Improvements in and relating to machines for use in connection with forging
IPC: B21J13/10
Filed: 1938-11-04
Abstract: 511,734. Forging. DIENENTHAL, H., and ZIMMERMANN, T. Nov. 4, 1938, No. 32050. Convention date, Nov. 18, 1937. [Class 83 (iv] In a self-propelled device 1 having. a carrier 21, which can be raised and lowered, for rotatable work-holding tongs 33, the carrier is resiliently supported at four points on a linkage controlled by a single lifting-cylinder 12. The support comprises four helical springs 17, 18 mounted on rods 15, 16 pivoted to bell-cranks 7, 8 pivoted to the machine frame. Each pair of cranks is connected together by a link '11 and the lifting-cylinder acts on the forward cranks. Arms 19, 20 on the carrier make pivotal engagement with members 22, 23 adapted to slide on the rods 15, 16. The end of the carrier remote from the tongs tends to move upwards and the springs 17 abut collars on the rods 15 and the lower ends of frames 37 secured to the' members 22. Buffer frames 24 connected to the bell-cranks have eyes 25, 26 for guiding rods 29 fixed to eyes 27, 28 on the carrier. Springs 32 on these rods abut flanged bushes 30, 31. The device has a driving motor 4 which is controlled for rapid running by a drum and for forging by a pedal to give intermittent movement.
Patent GB-664135-A (GB)
Title: Shaft lining
IPC: E21D5/11
Filed: 1949-12-14
Abstract: 664,135. Shaft linings. CONIJN, N. W., and SMULDERS, H. J. A. M. Dec. 14, 1949. [Dec. 15, 1948] No. 32116/49. Class 85. A shaft lining in which a concrete wall is at least at one side in contact with a sheet metal wall 2 which is provided with projections b anchored in the concrete, the projections being so secured to the wall that they are at an angle deviating from 90 degrees to the tangent plane of the wall over the whole, or at least part of their length. The projections may be flat strips arranged edgewise to and disposed circumferentially or at an angle to the axis of the metal wall in the form of a helix, and are either welded along the whole line of contact with the wall or spot welded thereto. The strips are notched at one or more points along their length in the free edge and the corners so formed are bent in opposite directions. The strips may be arranged on opposed faces of the inner and outer walls 1, 2.
Patent GB-915064-A (GB)
Title: Perforating apparatus
Inventor: TURNER FREDERICK JAMES LESLIE
IPC: H04L17/20
Filed: 1961-09-08
Abstract: 915,064. Ratchet gearing. CREED & CO. Ltd. Sept. 8, 1961, No. 32342/61. Class 80 (3). [Also in Group VIII] A spindle, Fig. 5, has fixed thereto a lever 43 and also a lever 42 engageable with an arm 75 of a forked lever 74 the other arm 73 of which is linked to a lever 71 so as to form a toggle joint, the lever 71 being connected to a lever 58 operable by a cam 49 and having mounted thereon a pawl 60 engageable with a ratchetwheel 63 fixed to a shaft 64 to which a sprocketwheel 61 is also fixed. Also fixed to the shaft 64 is a star-wheel 65, which after each stepwise movement of the sprocket-wheel, is engageable by a roller 66 on a pivotally-mounted lever 67. After each such movement of the sprocketwheel, a tongue 81, Fig. 6, on a lever 82 operable by a cam 87 engages a ratchet-wheel 80 fixed to the shaft 64.