baber/WOPTO huggingface dataset:
Patent GB-1314291-A (GB)
Title: Prostaglandins and the preparation thereof
IPC: C07F7/18
Filed: 1971-05-04
Abstract: 1314291 Prostaglandin derivatives UPJOHN CO 4 May 1971 [4 May 1970 (2) 14 May 1970 (2)] 12898/71 Heading C2C The invention comprises novel prostaglandin derivatives of the formulµ wherein R 1  is H, C 1-8  alkyl or a pharmacologically acceptable cation, R 2  is CH 3  or CH 3 CH 2 , A is and X is trans-CH=CH- or -CH 2 CH 2 - and Y and Z are both -CH 2 CH 2 -, or X is trans -CH=CH, Y is cis-CH=CH-, and Z is -CH 2 CH 2 - or cis-CH=CH, provided that R 2  is CH 3 CH 2  when A is O or  X is trans-CH=CH-, Y and Z are both -CH 2 CH 2 - and the 15-OH group is the S configuration, and processes for preparing these compounds and those in which R 2  is CH 3 , A is O or X is trans-CH=CH- and Y and Z are both -CH 2 CH 2 - and the 15-OH group is in the R configuration. Compounds of the above formulµ in which A is are prepared by reacting compounds of the formula wherein A<SP>1</SP> is C 1-4  alkyl, phenyl optionally substituted with 1 or 2 fluorine or chlorine atoms or C 1-4  alkyl or C 7-12  aralkyl and wherein R 3  is C 1-8  alkyl or Si(A) 3  with compounds of the formula R 2 MgX, wherein X is Cl, Br or I and hydrolysing the resulting product. Compounds of the above formula in which A is =O are obtained by oxidizing the corresponding compounds in which A is with a reagent which selectively oxidizes secondary OH to = O in the presence of carboncarbon double bonds. Pharmaceutical compositions, suitable for orals parenteral, buccal, sublingual or topical adminis, tration, contain the above novel compoundtogether with pharmaceutically acceptable carriers. The compounds possess prostaglandin like activities.
Patent GB-129488-A (GB)
Title: Improvements in the Construction of Hollow Metallic Vessels.
IPC: F22B7/12
Filed: 1918-08-09
Abstract: 129,488. Hawthorn, Leslie, &. Co., R. & W., and Wyber, A. S. Aug. 9, 1918. Joints.-End walls 2 of boiler shells &c. a r e engaged in grooves formed in the lateral walls 1, and the parts 1, 2 are then welded together by means of fillets 3. The abutting longitudinal edges of the parts 1 may be embraced for the greater part of their length by riveted straps 4, the portions extending beyond the straps 4 being welded together.
Patent GB-1117848-A (GB)
Title: Improvements in and relating to gyroscopic instruments
IPC: G01C19/38
Filed: 1966-03-24
Abstract: 1,117,848. Gyroscopic apparatus. ANSCHUTZ & CO. G.m.b.H. March 24, 1966 [March 25, 1965], No. 12954/66. Heading G1C. A gyrocompass comprises a hollow sphere 10 containing at least one motor driven gyroscope mounted so as to impart north-seeking properties thereto, the sphere being contained within a vessel composed of parts 19, 20 so as to provide a gap 14, a liquid filling the vessel, and a pump 23 to force liquid into the gap 14 via an inlet 29 to keep the sphere floating in the vessel, the liquid leaving the gap 14 being returned to the pump through a passageway formed between the vessel part 19 and a container 21, the outer surface of which is cooled, electrical energy being supplied to the sphere 10 by the provision of opposed electrode portions 11 and 16, 13 and 17, and 12 and 18 on the outer surface of the sphere and the inner surface of the vessel 19, 20. The liquid is electrically conductive and is preferably an aqueous solution of benzoic acid. Conduction of electrical energy through the liquid between the electrodes generates heat and would cause undesirable local heating of the liquid but for the forced circulation by the pump 23. This circulation also ensures that no air bubbles are trapped in the gap 14. The container 21 may be provided with fins for cooling and a fan (not shown) may also be provided to circulate air round the container 21. In alternative embodiments the vessel part 19 may be extended to completely surround the sphere 10 with an outlet for liquid at the top, or the pump may be a centripetal pump mounted inside the container 21 and coaxial with the inlet 29. Also, the vessel part 19 may be hollow and provided with a number of holes to supply liquid to the gap 14, and the inlet 29 may be provided with vanes to either impart a swirling movement to the liquid or to ensure that no torques other than those required support the sphere are exerted thereon. A construction of gyrocompass is described in which the container is slaved to the sphere and is mounted in a follow up system for rotation about a vertical axis in a gimbal ring pivoted about a horizontal axis in the normal way.
Patent GB-592160-A (GB)
Title: Improvements in or relating to electric switches for use on cycles
IPC: B62M25/04
Filed: 1945-05-24
Abstract: 592,160. Snap-action switches. BIRMINGHAM SMALL ARMS CO., Ltd., and NEEDHAM, V. E. May 24, 1945, No. 12978. [Class 38 (v)] A dimming switch for a cycle head lamp, actuated by rotation of the handlegrip, comprises an insulating bush 59 fixed to the handlebar 3 and carrying three spring plunger contacts 71, 73, 75, which engage recesses in a movable contact plate 63 carried by an arcuate projection 57 on an insulating ring 55 on the handlegrip 41, so as to connect the middle contact 71 to either of the two outer contacts 73, 75. The bush 59 may also carry a horn button 65. In Fig. 1, (not shown) the moving contact is pivoted on an annular dished spring ring, rotated by the handlegrip and surrounding the handlebar within the fixed insulating bush, the latter having locating recesses co-operating with a tongue on the ring.
Patent GB-948649-A (GB)
Title: Thiuram monosulphides
IPC: C07C333/32
Filed: 1961-04-11
Abstract: Thiuram monosulphides are prepared by treating the oxidation products of salts of bisdithiocarbamic acids and primary diamines, with water or an organic solvent at a temperature between 40 DEG  and 100 DEG C. Hydrogen peroxide and sulphuric acid, ammonium or sodium persulphate, chlorine, sodium nitrite and sulphuric acid, or potassium ferricyanide may be used as the oxidising agent and the organic solvents may be halogenated or unhalogenated aliphatic or aromatic hydrocarbons, ethers, ketones, esters, nitriles or aliphatic alcohols. A temperature of about 50 DEG C. is used and hydrogen sulphide is split off.  Examples describe the treatment of the oxidation products of sodium ethylene, hexamethylene, 1,2-propylene, and p-phenylene bis dithiocarbamates. Specifications 789,470, 816,341 and 819,779 are referred to.
Patent GB-973383-A (GB)
Title: Linear motion device
IPC: F16H27/02
Filed: 1963-04-02
Abstract: 973,383. Ratchet gearing. WESTINGHOUSE ELECTRIC CORPORATION. April 2,1963 [April 30, 1962], No. 13051/63. Heading F2Q. A linear step-by-step motion of a lead screw 62 is effected by axially spaced gripper means 58, 60 and sequential operation of three solenoids 16, 18, 20 in a predetermined manner, the lower solenoid 20 being effective to move the gripper means 60 into engagement with the screw 62, the intermediate solenoid 18 being effective to lift or lower the gripper means 60 to effect inermental movement of the screw 62, and the upper solenoid 16 being effective as load transfer means whereby the upper gripper means 58 is caused to engage the screw 62 and move it a minute distance axially to relieve the load on the lower gripper means 60. In the condition shown in Figs. 1A and 1B, upper solenoid 16 is de-energized, and solenoids 18 and 20 are energized. For upward incremental movement of lead screw 62, upper solenoid 16 is first energized whereby a magnetic pole 112 moves upwardly causing latch arms 136 to pivot until their tips 140 assume the position shown in Fig. 3. The flange 145 then engages a shoulder 147 on the lower end of a support tube 110 whereby the clearance 143 between the tips 140 and teeth 88 of lead screw 62 is taken up and the screw moved upwardly by an increment equal to that clearance. This has the effect of relieving the lower gripper arms 84 from load. Lower solenoid 20 is then deenergized which causes pole 104 to drop under the influence of spring 148 thereby causing outward movement of gripper arms 84 to the unlatched position. Lift solenoid 18 is then deenergized causing lift pole 142, latching operating pole 109 and a spring support plunger 146 to descend under the influence of a spring 164 until lower surface 168 engages damping washers 170. To dampen the shock, fluid dashpot means are provided. Energization of lower solenoid 20 causes latch arms 84 to move inwardly to the coupled position, although the tips 86 are not in actual contact with the teeth 88. Upper solenoid 16 is then de-energized causing downward movement of a latch operating pole 112 and gripper support tube 110, under the influence of springs 120 and 126. The initial downward movement also moves the lead screw 62 downwardly to absorb the clearance between the tip 86 of the lower gripper arm 84 and the lead screw teeth 88. Subsequent downward movement of the pole 112 effects movement of upper gripper arms 136 to the unlatched position. Incremental movement of lead screw 62 upwardly is completed, by energizing the lift solenoid 18. The above cycle is then repeated. Downward movement of the lead screw 62 may be effected by reversal of the sequence of operations. In a modification, shown in Fig. 6, an upper solenoid 208 comprises a lift solenoid, intermediate solenoid 210 operates upper gripper means 256, and a lower solenoid 212 operates lower gripper means 258 constituting load transfer means. Specification 765,040 is referred to.
Patent GB-145232-A (GB)
Title: Improvements in or relating to railway signalling apparatus
IPC: B61L5/16
Filed: 1919-05-24
Abstract: 145,232. Hollands, C. L. May 24, 1919. Slots, reversers, and like apparatus; signals and points, interlocking.-An apparatus capable of use as a detector or as a detector and selector, or as a slot without alteration of the form of its parts comprises two sliding bars 1, 2 connected to the signal apparatus or to the hand-levers and a pair of links 5, 6 pivoted to these bars and to one another, their point of connexion being connected to the operating-lever or the signal apparatus. Fig. 1 shows the apparatus as a detector and selector. The detector blade 24 has a lateral projection 28 for ensuring the proper position of the slide, which is locked. The wire 29, when pulled, rocks the link 5 about its pivot, and the free slide 2 is drawn to set the signal. For use as a slot, the pivoted links 5, 6 are reversed as at Fig. 3, and when one operating wire 33 is pulled, the link 6 swings across and beyond the slide 2 without causing travel of the signal connexion 39. On the subsequent movement of the other connexion 34, the links 5, 6 become centralized and the signal is pulled off.
Patent GB-604188-A (GB)
Title: Improvements in and relating to automatic firearms
IPC: F41A3/82
Filed: 1941-10-10
Abstract: 604,188. Automatic firearms. VERWALTUNGSGES. DER WERKZEUGMASCHINENFABRIK OERLIKON. Oct. 10, 1941, No. 13111. Convention date, Oct. 23, 1940. [Class 92 (ii)] The barrel 1 and the parts connected thereto of a firearm whose breech block 7 is locked by inertia, is movably mounted and is buffered forwardly against fixed parts of the weapon and rearwardly by the recoil spring 9 of the breech block. The barrel shown is connected to a breech casing 2 and moves rearwardly against the action of a spring 10 and, when nearing its extreme positions, against springs 5, 6. The spring 9 bears against the casing 2 and is compressed initially by withdrawing the breech block until it is hooked by a lever mounted in the casing. Firing is effected by moving a trigger lever 14 mounted in the fixed housing 4, the movement serving to move inwards a rail' 11 against which bears a roller on a lever 12. This lever serves to retract a member 17 which in turn releases the hook holding the breech block. In operation forward motion of the breech block causes rearward motion of the barrel against the action of the spring 10, and after the firing of a shot the reverse action occurs and continues until the spring 9 is compressed and begins to reexpand. Preferably the barrel and parts connected thereto have a weight approximating to that of the breech block. The Specification as open to inspection under Sect. 91 describes also a modification in which the breech block is connected to forwardly extending rods serving to co-operate with a breech block recoil spring near the front of the firearm, while the recoil springs for the barrel and breech casing unit are at the rear. In another modification external recoil springs for the breech block surround rods extending rearwardly from a forward part of the housing 4. Mechanism is also described for enabling the firearm to fire single shots. This subjectmatter does not appear in the Specification as accepted.
Patent GB-131293-A (GB)
IPC: C10G73/36
Abstract: 131,293. Szekely, A. May 30, 1918, [Convention date]. Paraffin wax, purifying.-Cakes of crude paraffin wax to be sweated are made by pouring liquid residual paraffin into a perforated vessel or sieve 1 which is partly immersed in water, as by suspenders 2, and lifting an impervious frame 5 when the wax has set sufficiently to prevent overflow. A perforated cake may be formed by the use of a vessel 1 with sieve-like tubes 4 similarly protected by impervious tubes 6, preferably formed on a trough-shaped lid 7 adapted to close the vessel 1 except for an opening to pour in the paraffin. Water may be poured intb the trough to pass through the tubes 6 and 4 to hasten cooling. To facilitate removal, the frame 5 may be conical, and the tubes 6 may be mounted in guideslots so that they turn when the lid 7 is lifted. The cakes may be left in the vessels 1 during sweating.
Patent GB-558310-A (GB)
Title: Improvements in or relating to airscrews
IPC: B64C11/34
Filed: 1942-09-18
Abstract: 558,310. Screw propellers. SLAUGHTER, J. T. Sept. 18, 1942, No. 13155. Addition to 517,870. [Class 114] The pitch-changing mechanism described in the parent Specification is modified so that the drive between the airscrew shaft and the hub is effected at two points when the blades are at high pitch, i.e. it is effected partly through the high-pitch bevel-wheel and partly through an independent driving-member which acts on the hub through springs. The hub is driven, as heretofore, by a sliding clutch-sleeve 7, Fig. 1, which is splined to the enlarged end 8 of the airscrew shaft 2, and has splines for engaging the bores of two bevel-wheels 9, 10, both of which are in constant mesh with a bevel-pinion 11 on the root of each blade. The sleeve 7 is automatically controlled by a spring 15 acting in opposition to a centrifugal governor 55. In the low-pitch position, driving-dogs 37 on the bevel-wheel 9 co-operate with dogs 38 on the hub. When the sleeve moves into engagement with the high-pitch bevel 10, its splines also engage the hub of a driving-member 46, the arms 47 of which act on the hub through springs 48, Fig. 3. In the low-pitch adjustment, the arms rest against stops 53. In a modification, in which a reversed pitch of the blades can be obtained, the automatic control is dispensed with, and the sliding clutch-sleeve is operated from the cock-pit. The clutch-sleeve is movable past the low-pitch position, so as to disengage the driving-lugs 61, 62, Fig. 7, and allow the blades to be turned through a predetermined angle until the lugs 61 abut against the ends 63 of recesses 64 in the hub.
Patent GB-975570-A (GB)
Title: Improvements in and relating to surge arresters
Inventor: RABUS WILLY
IPC: H01T4/16
Filed: 1961-04-12
Abstract: 975,570. Lightning arresters. LICENTIA PATENT-VERWALTUNGS-G.m.b.H. April 12, 1961, No. 13169/61. Heading H2H. A conventional lightning arrester comprising a stack of electrodes 1 ...4 , insulating spacers 5 . . . 8 and insulating centring rings 9 . . . 12 held together by pressure plates 16, 17 and a spring 22, has two U-shaped insulating strips 20, 21 and 18 which are placed at right angles and interconnect the plates 16, 17 to take up the clamping reaction. The plates and strips interengage by means of suitably-placed notches. The strips may comprise high-grade resinbonded paper laminae, and their sides may be curved to follow the cylindrical surface of an enclosure in which the stack is accommodated.
Patent GB-499932-A (GB)
Title: Improvements in or relating to screw propellers, particularly for aircraft
IPC: B64C11/04
Filed: 1938-05-03
Abstract: 499,932. Airscrews. REISSNER, H., and ARGUS MOTOREN GES. May 3, 1938, No. 13183. [Class 114] A variable-pitch propeller in which the blades are mounted to turn freely about the longitudinal axis at right-angles to the propeller shaft, and also about a pivot disposed on a transverse axis with respect to the propeller shaft, such disposal and the distance of axis from the propeller shaft are so chosen that the blade under the combined action of the engine torque engine thrust and centrifugal force is automatically adjusted to the desired pitch. A boss 1 carries a number of adjustable sockets 2 in which is mounted a sleeve 5 turnable in relation to the socket upon the ball race 4. This sleeve 5 carries a transverse pin 7 upon which is mounted a second socket 9 to which the root 8 of the blade is attached. Adjustment of the pin within the sleeve 5 is effected by the screwed carrier 6. In an alternative the blade root 9 is provided with a sleeve carrying a number of sphericalshaped discs 13 adapted to coact with corresponding shaped discs 11, 12 carried by the sleeve 2 that is screwed in a socket in the hub. A lower spherical member 16 is provided with a transverse slot and engages a key 17 on the lower spherical surface 14. In a modification the spherical surface is reversed and the root of the blade 23 has a spherical bearing surface 21 upon a spherical surface 20 on the sleeve carrier 2. For the purpose of providing a vertical transverse axis, a pin 24 is continued inwardly and provided with a curved key engaging a slot 17 in a sleeve 16. The key may be held in place by a spring 27 so that it can be raised clear of the slot when it is desired to rotate the sleeve 16 and readjust the position of the slot. Alternative to setting the groove to fixed positions, it is possible to arrange for a relative movement during rotation as by the use of the centrifugal weight 38, the stem of which moves the key member 17, but moves it along a slightly helical path 36 whereby new settings are effective. These settings may only become effective at particular speed ranges of the plant as by providing either a very stiff spring 39 or a weak one in which case the centrifugal weight remains inoperative above or below a certain range of speeds. Alternatively, instead of an automatic centrifugal control, the control may be effected by using a piston 41 similarly coupled to the surface 17, the piston itself being moved by liquid lead thereto through a pipe 43 under the control of the pilot.
Patent GB-254065-A (GB)
Title: Improvements in tickets for use in ticket printing-machines, such as coin freed weighing machines
IPC: G07F17/26
Filed: 1925-05-20
Abstract: 254,065. Dehn, F. B., (Rhodes-Hochriem Manufacturing Co.). May 20, 1925. Printed records, apparatus for giving.-A ticket for use in machines such as coin-freed weighing apparatus, which print a part of a scale from a large rotary printing member. has bands 20 or marks of a colour about the same as that of the printing ink in order that the relevant part of the scale shall be visible while the irrelevant parts shall be unnoticeable or invisible. The words shown on the part 10 and the arrow 18 are printed on the ticket before insertion. The machine may print the date.
Patent GB-132713-A (GB)
IPC: E05F11/00
Abstract: 132,713. Redmond, J., and Redmond, J. Feb. 15, 1919. Sliding bolts.-A bolt a for securing a door or window, and adapted to engage a rack, is secured in the shot and withdrawn positions by means of a sleeve d rotatable on the bolt and operable by the knob d', the sleeve d having axial and circumferential grooves d<2>, d<3> co-operating with a stud e on the casing b<2>. In another form, the stem a<2> of the bolt is rotatably connected with the head a<1> and is provided with an enlarged part provided with the locking-grooves. Specifications 101,648 and 106,237, [Class 65 (ii), Hinges &c.], are referred to.
Patent GB-1508303-A (GB)
Title: Brake system
IPC: H01H36/00
Filed: 1975-06-16
Abstract: 1508303 Selective signalling DAVIES & METCALFE Ltd 16 June 1975 [26 March 1974] 13310/74 Heading G4H [Also in Division H1] In a brake control system a movable permanent magnet (not shown) can operate any one of a series of reed contact units RS1 to RS8 in turn. The closing of the contacts of each unit connects supply leads 34, 35 to a different combination of diodes D2 to D16 and thyristors TH1 to TH3. A further thyristor TH4 is connected so as to be pulsed on switching from one contact unit to the next and with capacitors C1, C2, C3 ensures that any of thyristors TH1, TH2, TH3, which has its trigger circuit deenergized ceases to conduct. The thyristors TH1, TH2, TH3, control relay coils RL1, RL2, RL3 with contacts RL1/1, RL2/1, RL3/1 in brake control lines A, B, C and may have further contacts (Fig. 5, not shown) arranged to connect the lines A, B, C, to the negative lead 35 when the respective coils RL1, RL2, R3 are de-energized.
Patent GB-133286-A (GB)
IPC: F16H33/18
Abstract: 133,286. Andreau, J. E. Oct. 3, 1918, [Convention date]. Variables-speed epicyclic gearing lorr internalcombustion and other engines, motor-vehicles, bicycles, agricultural machines, hoisting.apparatus, conveyers, machine tools, &c, Eccentric, centrifugal masses are applied to the planetpinions in order to convert automatically a constant driving speed into a variable speed depending on the driven load. In the forms shown, a driving-shaft a drives the shaft f a sunwheel b and a planet; pinion c on an arm e, an,d a centrifugal mass is attaclied to the pinion c. A one-direction clutch i, which may be reversible, ensures the shaft f being driven in the desired direction only. The gearing may be immersed in a fluid capable of resisting movement of the insses g to assist their action.
Patent GB-1500523-A (GB)
Title: Semiconductor switching circuits
IPC: H01L27/00
Filed: 1975-04-01
Abstract: 1500523 Semi-conductor circuits SONY CORP 1 April 1975 [2 April 1974] 13333/75 Heading H3T In a switching circuit comprising two current paths each made up of a signal transistor Q 1  or Q 2  and a switching transistor Q 3  or Q 4 , switched ON alternately by differential input SC and feeding constant current sink 10, the interconnections of the two transistors in each path are taken to the outer regions of a device LEC (Fig. 1, not shown) comprising three regions of alternate conductivity type (NPN), each carrying a terminal, in which the first includes a potential barrier of higher energy than the minority carriers injected from the second region and within their diffusion distance from the junction, the output 11 being taken from the second region of the device. The barrier may be a region of higher impurity concentration within the first region: the third region may also carry a barrier for symmetry. In addition (Fig. 2, not shown) the first region may carry an isolated region of opposite conductivity type within the diffusion distance from the junction. When, for example, transistor Q 3  is switched ON the whole of the constant current of sink 10 passes through Q 3 , that which cannot be supplied by signal S A  acting through Q 1  being made up by current through load R L  and one of the junctions of device LEC, modifying its impedance to the signal. The potential of output terminal 11 follows whichever signal S A , S B  is switched ON. In a further embodiment (Fig. 4, not shown) the signals S A , S B  are the same signal connected differentially, its phase being compared with that of the switching signal S C , a frequency filtered output from 11 indicating the phase. Transistors Q 1 -Q 4  may be FET's or the same device as LEC.