baber/WOPTO huggingface dataset:
Patent GB-1477965-A (GB)
Title: Device for determining the state of the atmosphere at aero dromes from measurements of the optical transmission or reflection properties of the atmosphere
IPC: G01N21/49
Filed: 1975-06-09
Abstract: 1477965 Measuring visibility F FRUNGEL 9 June 1975 [14 June 1974] 24676/75 Heading G1A [ Also in Division G2] A transmissometer for determining visibility through the atmosphere comprises a vertical tube 1 which houses the optical and electrical equipment and a mirror 10 at the top of the apparatus whereby a horizontal beam is caused to emerge or alternatively a horizontal incident beam is deflected into the tube. The tube has a weakening 3 adjacent its lower end where it will break if for example, struck by an aircraft. As shown a flash source 14 driven by a capacitance circuit 12, a series of lenses 14, 17, a mirror 10 and a window 9b are contained in a sealed unit resiliently mounted by springs 16a and centred by screws 16b within tube 1. A blower 6 having filters 7 feeds air to the tube to keep window 9b clean the flow being exhausted as pet arrows 9d or 9c. Fig. 2 (not shown) shows an adjustable mirror with a fixed optic-electrical unit.
Patent GB-486639-A (GB)
Title: An improved method of making high ohmic resistances with low temperature coefficient
IPC: H01C17/065
Filed: 1937-09-10
Abstract: 486,639. Resistance coatings; ornamenting pottery. TRIGGS, W. W. (Rosenthal-Isolatoren Ges.) Sept. 10, 1937, No. 24692. [Class 37] [Also in Group X] High ohmic resistances with low temperature coefficients, of the kind comprising a mixture of salt solutions of precious metals, or pigments burnt on a ceramic base, are made from a mixture of 20 to 50 per cent platinum and 50 to 80 per cent silver or gold. Additions of 0À1 to 5 per cent of rhodium, palladium or osmium alone or together may be made. The mixture is applied to the carrier by painting, spraying or dipping and is thereafter baked at temperatures between 300- 1000‹ C.
Patent GB-490170-A (GB)
Title: Improvements in mechanism for operating doors of vehicles
IPC: E05B65/12
Filed: 1937-09-10
Abstract: 490,170. Door-operating appliances. BLACK, W. R., and PARK ROYAL COACHWORKS, Ltd. Sept. 10, 1937, No. 24698. [Class 65 (i)] The sliding door 4 of a vehicle 3 is operated from the driver's seat by means of a cable 5, (i passing round a horizontal rotatable pulley 1 driven by a handle 17 above the driver's head through chain gear 13 .. 15. The cable is fixed to a bracket on the door and passes round a pulley fixed to the vehicle.
Patent GB-1276618-A (GB)
Title: Improvements in tunnel boring equipment
Inventor: REES DONALD FRANK
IPC: E21D9/06
Filed: 1970-05-21
Abstract: 1276618 Tunnelling WILLIAM F REES Ltd 21 May 1970 [21 May 1970] 24722/70 Heading E1F In a tunnelling shield 10 with or without excavating tools and advanceable by rams 17 acting between a lining (not shown) and anchor points 13 or 14, on the shield, the rams are mounted on a carriage and are movable therewith along the shield, members 24 being engageable with the anchor points in at least one position of the carriage to transmit thrust to the shield. The members 24 are releasable pawls pivoted to a reaction ring 18 forming, with the rams and a thrust ring 20, the carriage. The pawls are engaged with the anchor point 13 and the rams extended to advance the shield. The rams are then retracted and the pawls engaged behind a second anchor point 14. The rams are again extended to advance the shield, a further distance and so on until there is enough clearance for a further lining section to be inserted. The carriage may be moved on its radially adjustable wheels 21, 22 to either end of the shield to make room for excavating the face or inserting the lining respectively. The shield may be rectangular or circular and may have a flexible sealing ring 16.
Patent GB-627390-A (GB)
Title: Improvements in change over mercury container electric switches
IPC: H01H29/24
Filed: 1947-09-10
Abstract: 627,390. Mercury switches. RAMSDEN, A. Sept. 10, 1947, No. 24811. '[Class 38(v)] A change-over mercury-container switch comprises a casing A tapered towards the ends to provide rapid make and break bethe feeder electrode a and the outgoing electrodes b, with a momentary break between both elctrodes b and the electrode a between each make and break. The casing has three electrode-cavities c, c<SP>3</SP>, each containing mercury, the electrodes projecting upwards into these cavities and downwards from the container into mercury pools in cavities D<SP>1</SP> in an insulating block D<SP>2</SP> carrying uprights f<SP>2</SP>, f<SP>3</SP> to which the switch is pivoted at f<SP>1</SP>. The switch is adapted to be tilted at high speed in either direction from its normal, central position by a lever f' and is attached to the pivots f <SP>1</SP> by a carrier f surrounding rubber bands e. Excessive tilting of the switch is prevented by springs a' surrounding the electrodes. The leads are attached to terminals d which are connected to the mercury in cavities D<SP>1</SP> by screws D. In a modification, Fig. 5, the casing is straight and has a porcelain insert A<SP>1</SP> at each end, the inserts being formed with cavities c<SP>3</SP> and tapered runways c<SP>1</SP>.
Patent GB-278525-A (GB)
Title: Improvements in or relating to braking or clutch mechanism
IPC: F16D51/04
Filed: 1926-10-07
Abstract: 278,525. Webb & Co., Ltd., H. C., and Chinn, H. Oct. 7, 1926. Clutches, friction.-Clutch or braking mechanism, particularly suitable for use upon a motor cycle or other vehicle, comprises an internally expanding steel brake or clutch band a, the extremities a<1>, a<2> of which are twisted at right-angles to the plane of the metal for attachment and operation purposes. The end a<1> is secured by bolts a<3> to a stationary plate b which also carries a crank d operated by a lever e, the crank pin d<1> engaging the end a<2> of the brake band through a slot connection a<4>. The end a<1> may be slotted at a<5>, Fig. 3, and pivotally engage a stud a<3> on the casing b, or an additional stud a<3> may be adapted to engage in a slot a<6>. The end a<1> may be slotted at the end to rest on a stud a' and guided in the direction of its length by two studs bearing against the sides, or the end a<1> may slide in a channel-section member. The end a<1> may also rest on studs engaging a parallel and inclined slot respectively. The ends a<1>, a<2> may be connected by a spring. As applied to clutch mechanism for transmitting rotary motion, both the carrier plate b and the drum c may be capable of rotation, the drive being taken, for instance, to the free extremity a<2> of the clutching band a from the axis. of rotation.
Patent GB-519528-A (GB)
Title: Improved process for reclaiming reagent
IPC: B01D3/00
Filed: 1938-08-24
Abstract: 519,528. Distilling ; etching. AEROVOX CORPORATION. Aug. 24, 1938, No. 24892. Convention date, Feb. 23, 1938. [Class 32] [Also in Group XVI] In the recovery, by distillation, of a reagent, e.g., an acid, from a reagent solution by continuously withdrawing the partially used solution and progressively distilling it to remove the free reagent for return to the reagent solution, a solution of azeotropic composition is employed so as to render unnecessary readjustment of the concentration of the solution. As applied to the etching of aluminium foil, for use in electrolytic condensers, the foil F, drawn from a roll R through a cleaning tank A, wipers 17, 18 and intervening water spray 19, is passed through an etching tank B containing a solution of hydrochloric acid of constant boiling point, i.e., containing 20.2 per cent. by weight of acid. Partially spent acid containing aluminium chloride passes by a pipe 26 to a boiler 27 heated by a steam coil 28 and acid of the constant boiling point composition is driven off to a condenser 30 and thence to the tank B. The level of the acid in the tank is maintained by a ball valve 34 controlling a supply of fresh acid of 20.2 per cent. strength from a tank 35. Precipitated aluminium is withdrawn through a tap 33. Specification 504,559, is referred to.
Patent GB-1049107-A (GB)
Title: Improvements in hydro-pneumatic suspension systems
Inventor: LANGFORD CECIL CHARLES
IPC: B60G17/056
Filed: 1964-06-16
Abstract: 1,049,107. Adjusting vehicle body height. DAMIC CONTROLS Ltd. Sept. 8, 1965 [June 16, 1964], No. 24930/64. Heading B7D. In a levelling valve for a vehicle suspension, inlet and exhaust ports 5, 4 connected to an engine-driven hydraulic pump P and a reservoir T are communicable with an outlet 8 connected to one or more hydro-pneumatic springs 9 through spring-closed valves 11 which are opened by servo piston 16 controlled by pilot valves 22 when a change in vehicle loading demands fluid flow to or from the springs. Cams C, C<SP>1</SP> actuated by a torsion bar TB sensitive to vehicle body height normally hold the pilot valves 22 open so that fluid supplied to bores 17 above the pistons 16 through a passage (not shown) communicating with the inlet port 5 passes into a passage 26 communicating with the exhaust port 4 by way of a passage 27 (not shown). When the body height changes the cams C, C<SP>1</SP> are displaced by the torsion bar TB and one pilot valve 22 is closed by a spring 23 so that increasing pressure in the bore 17 displaces the piston 16 to open the associated valve 11. Flow restrictors in the passage 31 delay actuation of the pistons 16 to prevent opening of the valves 11 when travelling over uneven ground. A non-return valve 13 in the inlet port 5 retains fluid pressure in the system when the pump P is inoperative. Separate levelling valves may be employed at the front and rear of a vehicle.
Patent GB-1435392-A (GB)
Title: Stabilized chromium dioxide
IPC: C01G37/027
Filed: 1973-05-24
Abstract: 1435392 Coated CrO 2  MONTECATINI EDISON SpA 24 May 1973 [24 May 1972 9 March 1973] 24950/73 Heading C1A Ferromagnetic CrO 2  particles are coated with one or more insoluble or sparingly soluble compounds selected from salts having a MoO 4 <SP>2-</SP>, WO 4 <SP>2-</SP> or PO 4 <SP>3-</SP> anion, salts having a Mg, Zn, Ce, La, Fe, Mn or Co cation, and oxides, hydrated oxides or hydroxides of Si or Ti. Exemplified salts are La 2 (MOO 4 ) 3 , BaMoO 4 , MgWO 4 , CaWO 4 , Mn 3 (PO 4 ) 2 , Pb 3 (PO 4 ) 2 , Zn 3 (PO 4 ) 2  and AlPO 4 , which are obtained by double decomposition of a water soluble metal compound with the corresponding Na molybdate &c., followed by neutralization with NaOH, in an aqueous slurry of the CrO 2 . The deposit is present in amounts of 0À1-25% wt. of particles. The deposit may further contain oxide, hydroxide or hydrated oxide of Sb and one or more compounds of Al, Ca, Sr, Ba or Pb. Exemplified oxides are SiO 2 , TiO 2 , and mixtures of Si with Al and Ti with Al, which are obtained by hydrolysis of H 2 SiF 6 , TiOSO 4  or Al 2 (SO 4 ) 3  with NaOH, or by reaction of Na silicate with Al 2 (SO 4 ) 3 , in the aqueous CrO 2  slurry. The particles may then be washed, and dried at 110‹ C. or 250‹ C. In Example 11, SiCl 4  is added to a slurry of humidified CrO 2  in hexane and the slurry evaporated to dryness. The initial CrO 2  particles may be modified with La 2 O 3 , and may be obtained as described in Specification 1,426,526.
Patent GB-502351-A (GB)
Title: Improvements in or relating to television receivers
IPC: H04N3/20
Filed: 1937-09-14
Abstract: 502,351. Television receivers. BAIRD TELEVISION, Ltd., and RIDGEWAY, D. V. Sept. 14, 1937, No. 24962. [Class 40 (iii)] The earth end of the resistance 4 of a resistance-capacity coupling 3, 4 to the modulating electrode 2 of a magnetically focused cathode-ray tube 1 is isolated from earth, when the receiver is switched off, to leave on the modulating electrode a potential which corresponds substantially with the full negative charge of the condenser.
Patent GB-805713-A (GB)
Title: A fuel economising device for internal combustion engines
IPC: F02D9/10
Filed: 1956-08-16
Abstract: 805,713. Regulating. MOORWOOD, A. G., and MOORWOOD, S. Aug. 16, 1956, No. 25090/56. Addition to 771,649. Class 7(6) The fuel economizing device of the parent Specification, comprising a disc valve 2 carried by a plate 4 positioned between the induction manifold branch 3 and cylinder inlet 1 and operable by means independent of the carburetter throttle valve operating means to close the inlet or permit a predetermined minimum flow of fuel-air mixture at idling, is modified by the addition of means 6 preventing the valve 2 from being sucked into the cylinder if it breaks loose. The means 6 comprises a cage formed by two semicircular members attached to the plate 4. The valve spindle 5 is cranked at 5c for connection to the operating member and is supported by a bracket 11 fixed in position by one of the fixing bolts 12 of the plate 4. A spring- loaded sealing member 10 slidable on the spindle 5 seals the outer end of the bore in the plate 4 through which the spindle 5 passes.
Patent GB-1021195-A (GB)
Title: Diazines and process for their manufacture
IPC: C09B43/12
Filed: 1963-06-24
Abstract: The invention comprises a process for the preparation of diazines of the formula <FORM:1021195/C2/1> or tautomers thereof, in which Y represents an amino group, R0 represents a hydrocarbon group which may be substituted or a hydrogen atom, and the symbol <FORM:1021195/C2/2> represents an optionally substituted carbocyclic or heterocyclic ring, or of an acid addition salt thereof, by reacting a compound of the formula <FORM:1021195/C2/3> or a tautomer thereof, in which X1 and X2 each represents a free, etherified or esterified hydroxyl group, or together represent an oxo group, with ammonia or an amine of the formula HY, and simultaneously or subsequently treating the resulting compound with a dehydrogenating agent, and, if desired, converting a resulting acid addition salt into a free base or a resulting base into an acid addition salt.  The diazines of the formula <FORM:1021195/C2/4> and the 7,8-dihydro derivatives thereof, in which R3 represents a hydrogen atom or a C1- 7 alkyl, di-C1- 7 alkyl-amino, piperidino, pyrrolidino, morpholino or piperazino group and Y represents a di-C1- 7 alkylamino, piperidino, morpholino, pyrrolidino or piperazino group, are claimed per se. Pharmaceutical preparations, having diuretic and sodium-excretive activity, for enteral or parenteral administration, comprise a compound of the Formula IV, or a 7,8-dihydro derivative thereof, together with a pharmaceutical carrier. The preparations may be in the form of tablets, dragees, capsules, solutions, suspensions or emulsions, or in the form of animal feedstuffs or as additives to feedstuffs.
Patent GB-1509867-A (GB)
Title: Machines for stacking elongated articles into a parallelipipedic block
IPC: B65G57/14
Filed: 1976-06-17
Abstract: 1509867 Stacking flat articles A PARVEAU and L PARVEAU 17 June 1976 [23 June 1975] 25102/76 Heading B8R A stacking machine comprises two structures 1, 2 adjustable towards and away from each other along a rail 6, Figs. 1 and 2, each comprising a pair of chains 12 carrying a plurality of support assemblies 11, each having a pivoted support arm 21 for a plurality of boards 3. A pair of support assemblies are held in the loading position 11a while a plurality of boards are loaded laterally on to the support arms 21 by conveyers 15, 16 until the end board 3a actuates a switch 17 to release a holding arm 19 from each support assembly, whereupon the chains move the assemblies down one step to bring the next pair into the loading position. When loaded assemblies stack the top of a stack 22, the arms are forced back to position 21a to release their load on to the stack, the arms returning to position 21c under gravity as they start their next downward run.
Patent GB-406755-A (GB)
Title: Change speed control mechanism for motor cycles and like vehicles
IPC: B62M25/04
Filed: 1932-09-09
Abstract: 406,755. Controlling change - speed gearing. RAOULT, R., 34, Rue Dartois, LiÞge, Belgium. Sept. 9, 1932, No. 25223. Convention date, Sept. 9, 1931. [Class 80 (ii).] Control mechanism for change-speed gearing upon motor cycles comprises a cam 3, Figs. 2 and 4, which disengages the engine clutch, not shown, at each speed change. The cam 3 is fast on a rock shaft 2 to which are also secured a control pedal 1 and a lever arm 9 connected by a push and pull rod 11 to the speed changing mechanism shown in Figs. 1 and 6. The cam 3 rocks between fixed plates 4 slotted for the passage up and down of a cross pin 6 which rests in a depression z in the cam. A slide 7 adapted to move up and down carries the pin 6 and is connected through a cable 8 to the engine-clutch disengager. The pin 6 in rising out of the depression z pulls up the cable 8. The pin 6 then rides over an arc x y on the cam while the pedal 1 is moving farther to effect the speed change. Successive oscillations of the pedal 1 upwards turn a gear-changing shaft 14 by successive steps clockwise, and successive depressions of the pedal 1 turn the shaft 14 the other way. The rod 11 connects to a segmental frame 13, Fig. 1, which rocks about the shaft 14 as a pivot and carries two pawls 15<a>, 15<b> which trail over the surface of a fixed guide 17. In the guide 17 are slots 17<a>, 17b, Fig. 6, under which are segmental blocks 18<a>, 18<b>, respectively, with oppositely-directed teeth q, r. The blocks 18<a>, 18b are fast on the shaft 14. On a depression of the pedal 1, the frame 13 rocks to the left of Fig. 1 until the pawl 15<a> drops through the slot 17<a>, and engages a tooth q. Continued movement carries the block 17<a> and shaft 14 to the left until the pawl strikes the end of the slot at m, Fig. 6, and is stopped thereby. A gear change has thus been effected and the shaft 14 is held by suitable means while the frame 13 and pedal 1 are returned to middle position by a spring, not shown.
Patent GB-928854-A (GB)
Title: Improvements in or relating to a projectile fuze for a gun with a rifled bore
IPC: F42C15/26
Filed: 1959-07-23
Abstract: 928,854. Projectile fuzes. MEFINA S.A. July 23, 1959 [July 25, 1958], No. 25289/59. Class 9 (1). An impact-operated fuze for rotated projectiles provided with a self-destruction device has a primer 7 mounted in a rotatable plate 8 and held out of alignment with a spring-loaded firing pin by a spring-pressed catch 46 engaging a notch in the plate. The path of the plate 8 is also blocked by an arm 44 extending from a cylinder 41 pivoted on an axle 45 and having a second arm 43 engaged by a pin 42 on a gear 26 of a clockwork mechanism controlled by an escapement 32. The balance 32 is itself locked by a pin 53 projecting from a slide 51, which is in turn held by a spring member 54. When the projectile leaves the gun, the centrifugal force due to the rotation causes the slide 51 to move outwards and thus release the balance 32 and start the clockwork controlling the movement of plate 8 to the armed position. The centrifugal force also causes the spring catch 46 to withdraw and the plate 8 rotates until a catch 38, Fig. 4, (not shown) engages a shoulder 40 to hold the plate in the armed position. The firing-pin 5 is held away from the plate 8 by a ball 13 which is secured by a sleeve 14 surrounding a rod 33 and held by a slide 55. The slide 55 has a recess into which an inertia body 58 is pressed by a spring 62. After acceleration of the projectile ceases the slide 55, due to centrifugal force, thrusts the body 58 forwards and itself moves outwards, thus releasing the sleeve 14. On impact, a plate 4 closing the fuze ruptures and a rod 3, driven inwards by the blow, pushes the sleeve 14 so that the ball 13 escapes into a groove 15 and the pin 5 is driven by its spring against the primer 7, which in turn fires a relay 10 to initiate a detonator 9. If impact does not occur within a predetermined time, self-destruction is brought about by a sector 20, which drives the clockwork, reaching a position where the rod 33 is no longer held against a spring- loaded sleeve 17. The sleeve 17 is then driven against the sleeve 14 and the pin 5 is operated as on impact.
Patent GB-613031-A (GB)
Title: Improvements in or relating to stapling machines
IPC: B25C5/16
Filed: 1945-09-29
Abstract: 613,031. Hand stapling-machines. QUICK, T., and QUICK, S. Sept. 29, 1945, No. 25330. [Class 89 (iii)] In a desk or bench type stapling machine having an opening in the plunger housing to permit front loading, the opening normally is closed by a plate which constitutes the front wall of the driver guideway and can be slid upwardly against a spring to expose the opening. The plunger housing 29 is U-shaped, Fig. 5, and is closed in front by a detachable plate 49 formed with the opening 51 for front loading. Slidable within the U is a plate 33 which constitutes the front wall of the driver guideway and has rearwardly-extending wings 32 which act as side guides for the driver plunger 30, which is guided at the rear by a plate 35 which has a horizontal limb 37 serving as the upper wall of the staple guideway at the front of the magazine. The plate 33 has wings, not shown, by which it can be raised against the plunger spring 48 for loading the magazine through the opening 51, or for clearing a jammed staple. The staple magazine 11, which may be integral with the handle 10 and housing 29, is of inverted U-shape and houses a U-shaped staple-supporting bar 13, Fig. 4, secured in it by screws 27 and a detachable plate 28. The U of the bar 13 houses a rod 21 held between front and rear blocks 22, 24, on which are mounted a pusher spring 26 and a slidable block 20 which is secured to the pusher 17 and has a pin 18 upstanding through a slot in the magazine. The pin has a knurled screw head 54 for withdrawing the pusher for loading, and a plate 58 adapted to engage a groove 56 in the magazine to lock the pusher in withdrawn position. By removing the screws 27, the bar 13, rod 21, spring 26 and pusher 17 may be removed as a unit from the magazine. The housing 29 and handle 10 may be formed as separate metal pressings. The side walls of the housing 29 may be inturned at the front to guide the plate 33. The bar 13 may be adjustable in the magazine to vary the width of the staple-guiding passage. The plate 58 may be replaced by a pivoted catch plate. The pusher spring may be arranged above the magazine. Specifications 613,095 and 613,100 are referred to.
Patent GB-713861-A (GB)
Title: Improvements in wrapping machinery
Inventor: ROSE ALFRED GERMAN
IPC: B65B41/16
Filed: 1951-10-31
Abstract: 713,861. Operating clutches. ROSE BROS. (GAINSBOROUGH) , Ltd. Oct. 28. 1952 (Oct. 31, 1951], No. 25410/51. Class 80 (2) [Also in Groups XVI and XVII] In a wrapping-machine (see Group XVII) one of a pair of web-feeding rollers 11 is driven through a clutch 33, 38 which is engaged periodically by a lever 39 operated by a cam 41, the lever being associated with stop-mechanism (not shown) which prevents engagement of the clutch if an article to be wrapped is not fed into the machine. Am extension 42 of the roller shaft 31 carries a flanged sleeve 43 provided with a friction disc 44, and a further flanged sleeve 46 secured to the sleeve 43 and extension 42 carries bearing bushes 48 in which are slidably mounted a series of studs 49 carrying a plate 52 secured to a second fraction disc 53. A centre plate 54 having an extending arm 56 passing between a pair of fixed stops 57, 58 and urged by a spring 59 against the stop 58, is freely mounted on the sleeve 43 and is engaged with the friction discs by springs 51 encircling the studs. During 'the feeding movement of the rollers, the spring 59 is tensioned by the movement of the arm 56 against the stop 57, so that on cessation of the feeding movement it moves the arm in the opposite direction against the stop 58, thus causing a slight reverse movement. of the rollers.