baber/WOPTO huggingface dataset:
Patent GB-303789-A (GB)
Title: Improvements in & relating to torsion balances for measuring gravitational constants
IPC: G01V7/10
Filed: 1929-01-01
Abstract: 303,789. Jenny, W. P. Jan. 9, 1928, [Convention date]. Gravity, measuring force of.-An E÷tv÷s torsion-balance of the kind which is continuously rotated in azimuth is mounted on a support which is so constructed as to enable a number of readings at different elevations of the instrument above the, ground to be obtained automatically in each location in which the instrument is set up. The support consists of a plate 1 carrying the torsion balance, this plate being rotatably mounted at the upper end of a tubular member 7 forming a piston which fits within a cylinder 8. At the base of the support is a reservoir 9 from which oil &c. is forced into the cylinder 8 by a pump operated by a handle 13. the piston 7 being thus raised until its lower end uncovers a port 19 communicating with the reservoir. The balance is then in the uppermost position for reading. The plate 1 which is continuously rotated in azimuth by clockwork &c. carries a depending rod 27 which is brought into contact, after a complete revolution of the plate, with an arm 28 having contact surfaces 29, 30, Fig. 3, co-operating with pins 31 - - 31<c> carried by a plate 32 mounted on a rotatable spindle 33 which is controlled by a torsion, spring 34. The spindle 33 carries catches 36, 37, 38 adapted to operate lugs 39, 41, 43 on slide valves 40, 42, 44. 'The arrangement is such that the first actuation of the spindle 33 by the arm 27 causes the valve 40 to be moved to uncover the port 22 and allow oil to escape from the cylinder 8 into the reservoir 9. The piston 7 consequently falls to the position of Figs. 1 and 1<a> in which the port 22 is again closed by the base of the piston. Continued rotation of the plate 1 causes the spindle 33 to be actuated again to uncover the port 23 so that the piston again sinks to a new position for a further reading of the instrument. The final actuation of the spindle 33 causes the port 25 to be uncovered to allow the piston to sink to the bottom of the cylinder.
Patent GB-706104-A (GB)
Title: Improvements in the production of coloured polymerisation products
IPC: C08F2/44
Filed: 1951-01-02
Abstract: Coloured vinyl polymers are prepared by polymerization in a stirred aqueous suspension containing insoluble pulverulent substances, e.g. blanc fixe, a catalyst and an oil-pigment paste and in the absence of emulsifying agents.  The vinyl compounds may be styrene and its derivatives, vinyl esters, vinyl and vinylidene chlorides, and acrylic or methacrylic acid esters and the catalysts may be hydrogen or benzoyl peroxide, or azo-di-iso butyronitrile.  The colouring materials, e.g. titanium di-oxide, ferric oxide, zinc white, lamp-black, zinc or cadmium sulphide, and phosphorescent or fluorescent dyes, are ground with oily esters of higher aliphatic carboxylic acids such as linseed, varnish linseed, castor, dehydrated castor, oiticica and wood oils or their respective stand oils.  The paste may also be tinted with oil soluble dyes.  In examples, styrene is mixed with the pigment paste and catalyst, and introduced before or after partial polymerization, into a stirred aqueous suspension of blanc fixe. The resultant coloured beads are then pressed or injection moulded to plates.
Patent GB-511828-A (GB)
Title: Improvements in or relating to cinematograph cameras
IPC: G03B19/18
Filed: 1939-01-03
Abstract: 511,828. Lens mounts. ZEISS IKON AKT.- GES. Jan. 3, 1939, No. 196. Convention date, Feb. 16, 1938. [Class 97 (i)] A kinematograph camera has a rotatable lens moun 2 for different objectives 3, 4, 5, 6 and a movable slide 9 which automatically pre vents light from entering the camera except when a lens is in exposure positior The slide is coupled to a pawl 8 which drops into notch 7 when a lens is in position and allows th slide to open.
Patent GB-100006-A (GB)
Title: Improvements in Starting Mechanism for Automobiles.
IPC: H02K7/12
Filed: 1916-01-05
Abstract: 100,006. British Westinghouse Electric & Manufacturing Co., (Assignees of Wilson, C. E.). Jan. 5, 1915. Drawings to Specification. Motors, gearing for.-In electric starting-devices for the engines of automobiles in which the armature moves axially to connect it with the flywheel, the axial movement is effected by varying the magnetization of the field from the arrangement which exists during the turning movement. In a four-pole machine, each pole having a winding, only two opposite poles are magnetized at first and of opposite polarity; endlong movement is therefore obtained without rotation if the magnetization is equal. It may be slightly unbalanced so as to obtain slow rotation. In a four-pole machine, only two of which are wound, the current through one is reversed at starting so as to alter its polarity. In another modification having four wound poles, the first exciting-current is directed so as to make two adjacent poles of one polarity and the other two of opposite polarity, obtaining thereby a two-pole field. The windings are connected at first in series and then in pairs in parallel. In a modification of the last arrangement, the axial movement is effected in two steps; first a resistance is put in circuit with only two of the windings, obtaining thereby slow rotation of the armature, and then the resistance is cut out, the four windings then being in series to effect the endlong movement. In all these arrangements the switch for controlling the connexion is constrained to move in one direction only by a ratchet and detent. The Specification as open to inspection under Sect. 91 (3) (a) comprises also an arrangement in which the motor has a simple series winding and a pinion is mounted on the armature shaft, the pinion and shaft being correspondingly screw-threaded. The pinion can have axial movement on the shaft, this movement being cushioned by a spring. This subject-matter does not appear in the Specification as accepted.
Patent GB-289911-A (GB)
Title: Improvements in and relating to mechanical delayed action devices particularly applicable to telegraphy
IPC: H04L7/00
Filed: 1927-01-05
Abstract: 289,911. Appleton, S. E., Wood, K. L., and Eastern Telegraph Co., Ltd. Jan. 5, 1927. Synchronous movements. - Comprises a delay-action device in which the delay is accurately determined by the rotary speed of a shaft, the device being particularly suitable for deferring the actuation of an alarm or switch associated with the synchronising system of an automatic telegraph. In Fig. 1 the arm 2 is to respond to the upward and downward movements of the arm 1, shown as operable by a handle 8, a predetermined delay occurring between the movements of the two arms. Thus if the arm 1 be raised so that the sector 9 carried by it engages the rotating shaft 11, with which it gears frictionally or by teeth, no further movement of the arm 1 occurs until the sector 9 has been moved through a definite angle, whereupon a further upward movement is imparted to the arm 1 by the jockey 7. The arm 2 is consequently thrust upwards by the strut 6, and the sector 10 moves to the right (dotted-line position) under the influence of the spring 5. If the arm 1 be lowered before the sector 9 has completed the required angular movement the arm 2 remains unaffected: but if the arm 1 be lowered after both arms have been pushed upwards as described above, the sector 9 snaps back to the position in full lines and the spring 5 urges the sector 10 into engagement with the shaft 11 so that when this sector has been moved by the shaft through a definite angle the arm 2 falls to the position shown in the drawing. The following applications of the device are described : (a) In the system described in Specification 286,365 an alarm is operated when synchronism is lost, but the alarm is to be disabled when signalling has ceased for a given period, and to be again rendered available when synchronising signals have been arriving for some time. To this end the lever may be pulled upwards by a spring and downwards by an electromagnet energized by the signals, the jockey 7 being omitted; hence, when signals have ceased for a given time the arm 2 rises and disconnects the alarm. When signals recommence the arm 1 is pulled down and the sector 9 snaps over to the left, but the arm 2 cannot follow till the sector 10 has been moved through the required angle, whereupon it falls and reconnects the alarm circuit. (b) Similarly the delay action device may be used to disable and render available synchronisation correcting means of the kind described in Specification 215,434. (c) 'The synchronising apparatus described in Specification 234,179 may be set so as to connect once per word or once per letter, and the present device may be used to give the former setting during normal transmission and the latter after a pause during which synchronism may have been lost. In each case the duration of the delav decreases as the speed of the shaft 11 increases with increase in speed of signalling.
Patent GB-376183-A (GB)
Title: Improvements in or relating to the automatic control of the voltage of alternators
IPC: H02P9/34
Filed: 1932-01-06
Abstract: 376,183. Automatic regulation. NAAMLOOZE VENNOOTSCHAP PHILIPS' GLOEILAMPENFABRIEKEN, 13D, Emmasingel, Eindhoven, Holland. Jan. 6, 1932, No. 402. Convention date, Jan. 30, 1931. Drawings to Specification. [Class 38 (iv).] To increase the sensitiveness of the regulation obtained from one or more diodes connected in parallel with the field circuit of an alternator the cathode-heating circuit which is subject to the output voltage of the alternator includes a series-connected choke coil which is saturated under normal voltage conditions.
Patent GB-430505-A (GB)
Title: Improvements in or relating to tables
IPC: A47B25/00
Filed: 1934-01-05
Abstract: 430,505. Tables. TURNER, R. F., St. Giles, Warwick Road, Solihull, Warwickshire. Jan. 5, 1934, No. 421. [Class 52 (iii)] A folding table consists of a pentagonal part a and a rectangular part a<3> hinged together at a<2> and supported by three frames c, c', c<2>. The frame c is fixed to the part a<3>, and the parts c<1>, c<2> are pivoted to it to enable them to be turned under it ; the part a may then be folded down. Reference has been directed by the Comptroller to Specifications 201,424, [Class 52 (iii)], and 344,233.
Patent GB-764107-A (GB)
Title: New 1,2-diphenyl-3,5-dioxo-pyrazolidines and process for the preparation thereof
Filed: 1955-01-06
Abstract: The invention comprises substituted pyrazolidines of the general formula <FORM:0764107/IV(b)/1> wherein R1, R2 and R3 represent alkyl groups or wherein R1 and R2 together with the adjacent carbon atom represent a cyclohexyl group, the sum of the carbon atoms in the groups R1, R2 and R3 being at least 3 and not more than 8, and the salts thereof with inorganic and organic bases, and the preparation thereof by reacting the required 1,2-diphenyl-3,5-dioxo-4-alkylidene - pyrazolidine or 1,2 - diphenyl-3,5 - dioxo - 4 - cyclohexylidene - pyrazolidine with the required alkylmagnesium halide and hydrolysing the product. The salts are obtainable by treating the pyrazolidines with an equimolecular quantity by treating the pyrazolidines with an equimolecular quantity of the required base, e.g. an aqueous solution of caustic soda, caustic potash or sodium carbonate, ethylenediamine or sodium ethylate.  The preferred salts are the sodium and magnesium salts and those derived from ethylenediamine, triethanolamine and trimethylamine.  In the examples compounds of the above general formula are prepared in which the groups in the 4-position are tert.-butyl (and the sodium salt thereof), tert.-amyl, and 1-methylcyclohexyl.  Starting materials. 1,2-Diphenyl-3,5-dioxo-4-alkylidene (and cyclohexylidene)-pyrazolidines used in the above process are prepared by reacting 1,2 - diphenyl - 3,5 - dioxo - pyrazolidine with the required ketones.ALSO:Therapeutic compositions contain as the active ingredient a substituted pyrazolidine of the general formula, <FORM:0764107/VI/1> wherein R1, R2 and R3 represent alkyl groups or wherein R1 and R2 together with the adjacent carbon atom represent a cyclohexyl group, the sum of the carbon atoms in R1, R2 and R3 being at least 3 and not more than 8, or a salt thereof with an inorganic or organic base.  Suitable salts are the sodium, potassium and magnesium and salts derived from ethylenediamine. triethanolamine and trimethylamine.  A particularly useful composition is obtained by mixing the sodium salt of a pyrazolidine of the above general formula with 1-phenyl-2, 3-dimethyl- 4-dimethylamino-pyrazolone.
Patent GB-1396771-A (GB)
Title: Braking systems
IPC: B60T8/28
Filed: 1972-01-05
Abstract: 1396771 Braking systems GKN TRANSMISSIONS Ltd 19 Dec 1972 [5 Jan 1972] 435/72 Heading F2F A vehicle braking system has a servo-cylinder 33 interposed between a pedal-operated master cylinder 35 and a distributer 31 connected to rear and front wheel braking means 26, 28 the force magnification effected by the servocylinder 33 being variable by a control mass 20 whose position relative to the vehicle chassis 22 depends on the rate of retardation of the vehicle by the wheel braking means 26, 28 when actuated, said magnification varying directly with said rate of retardation from unity which corresponds to passage of the vehicle over ice up to a maximum value which normally corresponds to passage of the vehicle over a good dry road surface: the system thus acts to prevent skidding. In the embodiment of Figs. 2, 3 the control mass comprises the vehicle engine and gear-box unit 20 which is resiliently mounted on mountings 21 which allow it to move forwardly and rearwardly relative to the chassis 22. The unit 20 is connected to a piston 40 of the servo-cylinder 33 via a tension link 37 which may contain a lost motion device 38. The piston 40 has a piston-rod 42 having a bore 45 which receives a valve member 47. The master cylinder 35 is connected to a chamber 54 in servo-cylinder 33 by a port 55, and a chamber 52 is connected to the distributer 31 via a port 56. In the inoperative position valve member 47 allows communication between ports 55, 56 and when pedal 36 is operated fluid is first communicated from master cylinder 35 to distributer 31 and thence to wheel braking means 26, 28. As the vehicle starts to decelerate unit 20 will move forwardly relative to chassis 22 and piston 40 will move to the right to close valve member 47 on seating 46: fluid in chamber 52 is trapped and pressure generated therein by rightward movement of piston 40 will be communicated to braking means 26, 28, and the degree of rightward movement will be dependent on the instantaneous retardation of the vehicle which will itself depend on pedal pressure and the prevailing road conditions. The optional lost motion device 38 prevents servo-assistance under normal movements of the engine when there is no vehicle retardation. In the embodiment of Figs. 4, 5 (not shown) the unit (120) is connected to an hydraulic load cell (58) which acts via a line (59) on an hydraulic ram (60) to control movement of the servo-piston (140). In the embodiment of Fig. 6, a control mass 74 is connected by a link 75 to a metering valve 71. The servo-cylinder 233 has an hydraulic ram 68 which is connected to a servo pump 69 driven by transmission 223 and also to valve 71: valve 71 is also connected to the input of pump 69 by a line 73. When the vehicle is not being retarded the valve 71 is open and pump 69 pumps liquid around the servo loop. As the vehicle retards movement of the control mass 74 closes valve 71 to increase pressure in ram 68 and increase the servo magnification.
Patent GB-780320-A (GB)
Title: Improvements relating to apparatus for use in the manufacture of crystal contact devices
Inventor: HAYWARD CYRIL
IPC: H01L21/18
Filed: 1954-01-07
Abstract: 780,320. Semi-conductor devices. BRITISH THOMSON-HOUSTON CO., Ltd. Dec. 29, 1954 [Jan. 7, 1954], No. 494/54. Class 37. An apparatus for use in the manufacture of devices comprising a semi-conductor member and a metallic contact element(s) mounted on first and second support members includes means driven by a fluid pressure motor for moving one of the supports towards the other to establish contact between the semi-conductor and element(s) and then to increase the contact pressure between them, and means operable automatically after a predetermined amount of relative movement after contact is established to arrest the motion by stopping the motor fluid supply. In the embodiment the contact element(s) is carried on the piston-rod 5 of a spring-biased fluid-driven piston 2. A block 6 of magnetic material insulated from but slidably mounted on the rod 5 and biased against the fixed stop 7 by spring 8 carries an adjustable contact 11 which engages contact 10 on the stop. When pressure is admitted to the cylinder the contact elements are driven towards the semi-conductor by the piston and when contact is established electromagnet 9 is energized to arrest the motion of block 6. After a further movement corresponding to setting up a certain contact pressure and determined by the setting of screw 12, contacts 10 and 11  separate to break a relay circuit, thereby energizing the solenoid 4 to disconnect the fluid pressure supply via valve 3.
Patent GB-228688-A (GB)
Title: Improvements in the aeration or gasification of water or other liquids
IPC: B01F3/04
Filed: 1924-01-07
Abstract: 228,688. Bramwell, B. Jan. 7, 1924. Purifying liquids.-Apparatus for treating liquids with gases, e.g. for purifying water for use in swimming baths &c., consists of a tank A divided into chambers by a number of vertical partitions B, each chamber being divided into two divisions by a partition D, one division E serving as a supply chamber to the second or aerating division F. The water and gass pass through openings in the bottom of the partitions B, the edges of which openings may be serrated, up through the divisions E, through openings in the upper part of the partitions D and down over baffles &c. F' in the divisions F. In the last chamber H is a ball valve H' controlling the escape of gas.
Patent GB-194455-A (GB)
Title: Improvements in or relating to thermally actuated valves and electric switches
IPC: H01H35/26
Filed: 1922-01-07
Abstract: 194,455. Wilkinson, G. Jan. 7, 1922. Thermally - actuated valves. - A thermallyactuated valve adapted to limit automatically the amount of heat supplied to the amount required for any particular purpose has the internal moving element arranged to form a distance-piece between a pair of flexible diaphragms which serve for the transmission of the loading and of the force exerted by a heat-operated diaphragm. The valve-member d, shown as a simple beat valve though it may be a double-beat or a butterfly valve, is arranged between a pair of diaphragms r, r<1> which form the sides of the valve casing a. The loading spring i is arranged between an abutment j resting on the diaphragm r and a movable abutment l adjusted by a milled head p. The abutment l has a tongue movable in a slot in the casing to act as an indicator. The head may be perforated to receive a spring-loaded spindle o adapted to be used in addition to or in place of the spring. The thermal element comprises a chamber b containing volatile fluid and closed by a, flexible diaphragm c bearing aginst the diaphragm r'. A stop c<1> is provided to prevent distortion and the diaphragm c may replace the diaphragm r<1>. The thermal element may be separate from the control chamber to which it is ecnnected by a pipe.
Patent GB-1199861-A (GB)
Title: Composite Building Panel
Inventor: SHIRLEY DONALD EMERSON
IPC: E04C2/288
Filed: 1968-01-03
Abstract: 1,199,861. Building panels. ELKALITE Ltd. 20 Dec., 1968 [3 Jan., 1968], No. 536/68. Addition to 1488,106. Heading E1B. A building panel comprises a core of expanded polystyrene, foamed polyurethane, exfoliated vermiculite Of glass fibre slab encapsulated in a high alumina cement reinforced by fibrous synthetic material. Aggregate may be embedded in the surface of the panel.
Patent GB-963625-A (GB)
Title: Thiol-type thiamine derivatives and process for preparing them
IPC: C07D405/12
Filed: 1963-01-04
Abstract: The invention comprises thiamine derivatives of formula: <FORM:0963625/C1/1> where R is an alkyl, cycloalkyl, alkenyl, phenylalkyl or alkoxyalkyl radical and Y is an oxygen or sulphur atom.  The compounds may be obtained by reacting a compound of formula: <FORM:0963625/C1/2> where R and Y are as above, with 4H-dihydropyran. In examples compounds are prepared where -Y-R is -OC2H5, -O-C4H9 and -S-C2H5. Specifications 741,250 and 749,307 are referred to.
Patent GB-1193531-A (GB)
Title: Novel Reduced Pyrimidine Nucleosides and Nucleotides, and Processes for the Production Thereof
IPC: B01J21/00
Filed: 1968-01-04
Abstract: 1,193,531. Medicines comprising cytosine derivatives. UPJOHN CO. 4 Jan., 1968 [30 Jan., 1967; 8 May, 1967; 5 Sept., 1967], No. 587/68. Heading A5B. [Also in Division C2] Pharmaceutical compositions comprising 1- #-D-arabinofuranocyl cytosine or a pharmaceutically acceptable acid addition salt thereof and a compound of the formula II or IIA wherein R 1  represents hydrogen, methyl, hydroxymethyl, methoxy or ethoxy alkoxy chlorine, fluorine, and CF 3 , R 2  represents hydro gen, Ac in which Ac is the acyl group of a hydrocarbon carboxylic acid containing from 2 to 12 C atoms inclusive or X represents hydrogen, hydroxy, OAc in which Ac is defined as above or or X and OR 2  together can be and Y represents hydrogen, Ac defined as above or or together with a pharmaceutically acceptable carrier, if desired, are administered orally, parenterally or topically and have anti-viral activity and anti-tumour and anti-leukemic activity and inhibit the growth of Escherichia coli. The compounds of formulae II and IIA inhibit the delamination of the cytosine arabinoside.
Patent GB-130057-A (GB)
Title: A New or Improved Altimeter particularly applicable for Use on Aircraft.
IPC: G01C5/06
Filed: 1918-07-02
Abstract: 130,057. Blackburn Aeroplane & Motor Co., and Booth, H. July 2, 1918. Fluid speed-indicators.-Apparatus serving as an altimeter, wherein a reading of an aircurrent indicator is produced by a flow of air set up by a constant-speed air-pump drawing from the atmosphere, will also indicate pump-speeds when the atmospheric pressure is constant. The arrangement described comprises a pump driven from the engine or a vane in the slip-stream of the propeller, such pump drawing in atmospheric air and delivering it to a pressure gauge or air-current indicator. The pump 1 has a hollow plunger 2 driven by a crank from a wind vane 5, ports 7, 8 in the plunger registering at the ends of the stroke with ports 9, 11 leading to inlet and delivery pipes 10, 12.. The pipe 12 leads to an air-current indicator having a transparent tube 14 in which is .suspended a disk 16 by means of a spring 17. The tube 14 communicates at the bottom with the pipe 10 which has a hole 18 communicating with the atmosphere. The disk 16 is a loose fit in the tube so that the air can escape around its edge. The pump is provided with an air-reservoir 6. Instead of the spring 17, indiarubber strands may be used preferably acting on both sides of the disk. Tho movement of the disk is read against a scale of heights.