baber/WOPTO huggingface dataset:
Patent GB-970900-A (GB)
Title: Improvements in and relating to rotary vacuum pumps
IPC: F04C28/24
Filed: 1962-09-04
Abstract: 970,900. Valves. A. S. DARLING. Sept. 4, 1963 [Sept. 4, 1962], No. 33817/62. Heading F2V. [Also in Division F1] A two-stage rotary oil-sealed vacuum pump driven by a spindle 4 and disposed in an oil reservoir 1 supplying sealing and lubricating medium, includes between the space being evacuated and the pump, a spring-loaded, non- return valve 7 having a hollow plunger 16 formed with a head 18 slidable in a bore 14 to which pressure oil is supplied by a pump 6 driven by the spindle 4. When the vacuum pump is operative the plunger is urged upwardly by the pressure oil against its spring and air is sucked by the pump through the valve inlet 11, holes 19 in the plunger and the valve outlet 12. In the event of the vacuum pump being unintentionally or deliberately stopped, oil pressure beneath the head 18 decreases whence the plunger closes on to its seat 20 to isolate the vacuum system from the pump and so prevent oil being sucked into the system. A manuallyadjustable needle valve 9 adjusts the pressure in the bore 14. Instead of the plunger valve 7, a valve coupled to a peripherally mounted spring-loaded diaphragm may be used.
Patent GB-855007-A (GB)
Title: Polished floor or other building surface and synthetic resin based composition therefor
Inventor: MILLIGAN JOHN
IPC: C08K3/00
Filed: 1955-11-28
Abstract: A surfacing composition which can, when hardened, be smoothened or polished to give an appearance of granules or chippings glistening in a relatively dull matrix comprises (i) 1 part by weight of a liquid cold-setting solventless synthetic resin cement (with or without the appropriate setting agent), (ii) 1-3 parts of powdered filler which will pass through a 1/20 inch mesh, and (iii) 1-4 parts of granules or chippings retained by a 1/20 inch but passing a 1/4 inch mesh. Cements (i) specified are a styrenated alkyd with a benzoyl peroxide/dibutyl phthalate hardener, and epoxy resins with polyamine hardeners. Powdered fillers (ii) specified are magnesite, slate dust, barytes, silica, sand, marble and synthetic resins.  Granules or chippings (iii) specified are marble, dolomite and polystyrene, especially impacted polystyrene.  Optional additives include pigments and thixotropic agents, e.g. colloidal silica.  Uses.  The hardened surface may be wet ground with aluminium oxide to provide floors, step risers, wall slabs, or wall surfaces.
Patent GB-963394-A (GB)
Title: Improvements in or relating to transmission devices
IPC: F16H45/00
Filed: 1960-10-04
Abstract: 963,394. Clutch combinations. FRANCAISE DU FERODO S.A. Oct. 4, 1960 [Oct. 5, 1959; Nov. 30, 1959], No. 34033/60. Heading F2C. A transmission comprises an hydraulic torque converter having a pump P connected to an input shaft M, a one-way mounted reactor R and a turbine T fast with a driven shaft m 1  connected to an input shaft of mechanical gearing (not shown), and an hydraulically engaged friction clutch having driving plates fast in rotation with the pump P and a driven disc 22 splined to a driven shaft m 2  connected to a second input shaft of the mechanical gearing. The driving plates of the clutch comprise a backing plate 26 integral with a casing 13 joining the pump P to the input shaft, and a presser plate 27 which is splined to the casing and forms a partition between clutch chambers 14a, 14b. Restricted orifices 38 are formed at the periphery of the plate 27. In operation, a pump permanently supplies liquid to the converter through a conduit 30, and liquid leaves the converter through two paths, a first path including a space 33 between the turbine and the reactor and a restricted passage 35, and a second path including a space 34 between the pump and the turbine, the orifices 38, the clutch chamber 14b, a space between the driven shafts m 1 , m 2  and a conduit 40 controlled by means of a valve. To disengage the clutch the valve is closed so that the pressure in the clutch chamber 14b rises and the clutch disengages. To engage the clutch the valve is opened to allow relatively free exhaust of liquid from the clutch chamber 14b. In a modification, Fig. 3, a control valve 42 is used, the pump is connected to a line 44 and in the disengaged position shown supplies the converter through a line 45, and supplies the clutch chamber 14b through a non-return valve 47 and a line 40. Liquid leaves the torque converter through a line 36 and restriction 51. To engage the clutch the valve 42 is moved to the left, closing the clutch line 40 to the supply and opening it to exhaust. The line 36 from the converter is closed so that pressure builds up in the converter and is reduced in the clutch chamber to ensure engagement. Modified control valves are also described. In the transmission described the driven disc 22 rotates slower than the turbine when the clutch is disengaged; for applications where the disc rotates faster than the turbine the apertures 38 are formed in the inner periphery of the plate 27 instead of in the outer periphery.
Patent GB-471874-A (GB)
Title: Improvements in devices for varying the wind resistance of vehicles, and the resistance to progress of vessels through the water
IPC: B62D35/00
Filed: 1935-12-09
Abstract: 471,874. Vehicle bodies; brakes; ships. EVERLING, E. Dec. 9, 1935, Nos. 34052, 34053, 34054, and 34055. Void. Convention dates, Dec. 13, 1934, March 18, 1935, March 18, 1935, and Oct. 1, 1935. [Class 108 (i)] [Also in Groups XXXIII and XXXIV] In order to vary the fluid resistance of vehicles such as motor vehicles or ships, devices comprising movable and co-operating blades are arranged preferably at the junction of a longitudinal wall and a transverse wall. Fig. 2 shows a main blade 42 and a smaller blade 43 carried by a plate 45 pivoted to a supporting plate 46. The blade 43 is pivoted at 49 to the plate 45 and the blades are interconnected by links 50, 51, the junction pin 54 of which is guided in a slot 55 and the plate 45 is further linked by a link 56 to a member 57 connected by a rod 58 to the brake pedal 11 such that on the release of the latter the blades 42, 43 move into the full line position to impede the air flow, the blades forming a nozzle through which the air issues at increased velocity. In the normal position the blades lie parallel to the air-flow. Fig. 4 shows another arrangement in which both blades 104, 105 are linked together by a link 111 and turn about pivots 107‹, 109 in upper and lower supporting plates 102, a cable 119 from the braking or steering means being provided for operation. If desired the blades may be combined to form a nozzle and may, in the out-of-use position be housed in a recess in the side of the vehicle. The Specification as open to inspection under Sect. 91 comprises also an arrangement in which two blades 19, 19<1>, Fig. 2 (Cancelled) are connected to rods 23, 25, 23<1>, 25<1> which are connected to a compensating base 28 carried on the end of a rod 31 in connection with the steering or braking lever 35. In cornering or in a side wind the blades tend to turn relatively to one another and so cause the compensating bar 28 to turn but simultaneous movement of the blades cannot operate until the rod 31 is freed by means of the brake lever 35. This subject-matter does not appear in the Specification as accepted.
Patent GB-194430-A (GB)
Title: Improvements in fluid pressure reducing valves
IPC: G05D16/06
Filed: 1921-12-19
Abstract: 194,430. Martin, J. B. Dec. 19, 1921. Pressure-regulating and reducing valves. - A pressure-regulating or reducing valve actuated by a diaphragm 4 is loaded by the pressure of the fluid contained in a chamber 3, which chamber is replenished from the main conduit through a pipe 5 and manuallycontrolled valve 6.
Patent GB-779728-A (GB)
Title: Dummy warhead for shells and the like, made of pressed plastic material
IPC: F42B8/16
Filed: 1955-11-29
Abstract: 779,728. Practice projectiles. SALVINI, F. Nov. 29, 1955, No. 34204/55. Class 9 (1). A dummy warhead 1 for anti-tank missiles is screwed into the body 2 of the projectile and is filled with a coloured cloud-producing material separated from the contents of the body by a disc 10 of cardboard. The stem of the body 2 is internally threaded at 4 to engage the plug of a projector and is provided with a threaded hole 5 which receives a dummy safety device comprising a tube 3 in which a sliding head 6 is supported by a spring 8. During storage and transport a ring 9 prevents movement of the head 6. Within the stem is a mass 11 of high density held in place by a cardboard disc 13, the remainder of the space within the stem and body 2 being filled with ballast, the whole being so arranged that the centre of gravity corresponds with that of a live shell. A cardboard disc 12 holds the ballast in place and between the disc 10 and disc 12 is more of the cloud-producing material.
Patent GB-846902-A (GB)
Title: Pastes containing metallic pigments
IPC: C09D5/10
Filed: 1956-11-09
Abstract: In a metallic pigment-containing paste for use in a paint, 10 to 40% of the total metallic pigment present is leafing aluminium powder in a particle diameter range below 150 microns, the remainder of the metallic pigment being non-leafing.  The paste may contain zinc and aluminium pigments only, the zinc pigment being in the size range 0 to 60 microns.  An example is described.
Patent GB-428949-A (GB)
Title: Improved manufacture of powdered insecticides
IPC: A01N65/38
Filed: 1933-12-06
Abstract: A powdered insecticide is prepared by subjecting tobacco to dry distillation and mixing the volatile distillation products, without previous condensation, with a solid finely powdered substance serving as an adsorbent.  The adsorbent may be agitated during the process. Suitable powders are bolus, gypsum, lime, chalk, kaolin and talcum.
Patent GB-283478-A (GB)
Title: Improvements in automatic devices for filling storage batteries
IPC: H01M50/609
Filed: 1927-12-19
Abstract: 283,478. FrÚjacques, J. L. M. Jan. 10, 1927, [Convention date]. Filling storage batteries with electrolyte.-A device for correctly filling storage batteries comprises a vessel A having a water discharge tube B provided at its outer end with a clack valve C. An air inlet tube D opens out of the tube B near the end thereof and limits the level to which the battery may be filled when the clack valve C is opened by contact with the top of the plates. The distance between the ends of the tubes may be made adjustable either by mounting the air tube independently in the cork of the vessel and sliding it therethrough or by mounting the valve C in a nozzle screwed into the tube B.
Patent GB-605297-A (GB)
Title: Improvements in or relating to animal traps
IPC: A01M23/32
Filed: 1945-12-19
Abstract: 605,297. Animal traps. PASCOE, P. C. Dec. 19, 1945, No. 34424. [Class 5(i)] Relates to a trap of the spring-jaw type in which the animal is trapped inside a netted framework attached to the jaws. According to the invention, the jaws are closed by means of two springs, one at either side of the trap, each having a ring- like part encircling side members of the jaws, the spring at one side being stronger than that at the other. As shown in Fig. 1. the trap comprises two rectangular metal frames 1 and 2 fitted with metal chain networks 3. The ring-like part 9 of the strong spring 5 encircles members 1a and 2a of the frames 1 and 2 which are pivotally connected to the link 10 fixed to the base plate. There is a similar arrangement at the other side of the trap with the weaker spring 11. The trap is locked in the open position by the catch 19 engaging the ring- like part 9 and the catch being in turn engaged by the nose or claw 22 at the edge of the trigger plate 4. A safety catch 16 is provided.
Patent GB-904267-A (GB)
Title: Improvements in apparatus for the detection of radioactive nuclear fission products
Inventor: HARLEN FRANK
IPC: G21C17/04
Filed: 1957-11-05
Abstract: 904,267. Reactors. DOWTY ELECTRICS Ltd. Nov. 4, 1958 [Nov. 5, 1957], No. 34425/57. Class 39 (4). A fission product detector comprises a pressure vessel containing a precipitation chamber and a detector set end to end, with a pulley at each end to guide an elongated conductor through the chamber and detector, and a drum assembly on one side to store and drive the conductor. A precipitation chamber 8, an adjacent steel-cased lead shield 9, and a phosphor 12 all have a slot for insertion of a wire 22. The phosphor is associated with a light guide and photomultiplier in a housing 16 which has passages 19 to remove contaminated coolant from the phosphor. The wire is carried on a detachable assembly having pulleys 25, 26 and drums 27, 28. Drum 28 has a tensioner 32. Drum 27 is driven intermittently through a ratchet by a radial vane in a cylinder 35, the vane being turned by pressure differences in the coolant circuit; the drive is synchronized with the feed of gas to the precipitation chamber. The axes of the drums are tilted to facilitate winding. The preferred phosphor is p-terphenyl and tetraphenyl butadiene in polyvinyl toluene.
Patent GB-1375477-A (GB)
IPC: B01D15/00
Filed: 1972-07-24
Abstract: 1375477 Filter press and filter pad therefore JOHNS-MANVILLE CORP 24 July 1972 [29 July 1971] 34473/72 Heading B1D [Also in Division D2]  A permeable fibrous filter pad comprises cellulosic fibres, present in an amount of 30-89 % wt. of the total weight of fibres, asbestos fibres and monofilament fibres selected from glass fibres, polyolefin fibres, nylon fibres, polyester fibres, acrylic fibres and other synthetic fibres comprising the remainder of the fibre content with the ratio of asbestos fibres to monofilament fibres being from 6:1 to 1:5. The filter pad is suitable for use in a plate and frame filter press (Figs. 4 and 5). The press 44 has a fixed end plate 46, a plurality of plates 48 and frames 66 each provided with an inlet port 50 and discharge port 52. A movable end plate 54 has a tightening screw 58. The plates are supported on side bars 56. Fig. 5 shows each filter plate 48 having a filter pad 10 draped over an edge to cover both sides of the plate. Ports 70 connect the inlet passages 50 with the interior of the frames. The plates have drainage channels formed on their surfaces leading via drainage orifices (62, Fig. 5A, not shown) and ducts 68 to outlets 52.
Patent GB-1406111-A (GB)
IPC: F02M27/08
Filed: 1972-07-25
Abstract: 1406111 Surface carburetters E C COTTELL 25 July 1972 34627/72 Heading F1B A device for supplying air-fuel mixture to an I.C. engine comprises a housing 21 having a chamber 24 with an air inlet (chamber 22 and ports 26, 29,) an air fuel mixture outlet 37 and a sonic atomizer. The atomizer includes a sonic transducer 65, to which is attached a probe 45, having an atomizing tip 85, the probe 45 being surrounded by a fuel distribution member 60 to form an annular conduit 55, whose radially outward extent is substantially greater than the distance between its surfaces. Controlled amounts of liquid fuel are supplied to flow in a film across the surface 86 of the tip 85 to be atomized, the air fuel mixture formed being further mixed by acoustic energy radiated from the downstream surface 90 of the tip. The sonic transducer 65 comprises Piezo-electric ceramic plates 69, 71 or may be a magnetostriction transducer. Fuel and air are controlled by valves 61 and 40 connected to a throttle pedal (123), Fig.4 (not shown) by arms 47, 62. In Fig.10, fuel is supplied from conduit 354 via valve 358 and additional fuel is supplied via valve 398 responsive to pressure downstream of atomizing surface 348. Opening the throttle opens air valve 322, Fig.7, and opens valve 358 and supplies extra fuel from bellows 384 by the action of cam 392. When the throttle is closing, expansion of the bellows prevents fuel reaching the atomizing surface. At idling, if the engine begins to stall, manifold vacuum will fall causing valve 404 to open to supply extra fuel. The cam and follower 392, 382 may be replaced by a pressure type actuator to operate valve 376 in response to pressure in a Venturi upstream of air valve 322. The bellows 384 may be replaced by a piston and cylinder, as may the diaphragm 408. The apparatus can be used to mix jet fuel with air for combustion by a jet engine.
Patent GB-1294028-A (GB)
Title: [NOVEL] ESTERS OF alpha-CARBOXYBENZYLPENCILLIN
IPC: C07D499/00
Filed: 1970-07-17
Abstract: 1294028 Diesters of α-carboxybenzylpenicillin PFIZER Inc 17 July 1970 [26 Nov 1969] 34659/70 Heading C2A The invention concerns di-esters of α-carboxybenzylpenicillin of Formula wherein R 1  and R 2  may be the same or different and are selected from the following: (1) hydrogen, alkyl, alkoxyalkyl and alkylthioalkyl, each containing up to 6 carbon atoms, (2) cycloalkyl of 3 to 6 carbon atoms, (3) phenylalkyl or mono- and di-substituted phenylalkyl wherein the substituent is alkyl containing up to three carbon atoms, chlorine, bromine, fluorine or C 1 -C 2  alkoxy or alkylthio, with the proviso that R 1  and R 2  are not both hydrogen; or R 1  and R 2  when taken together with the carbon atom to which they are attached form a ring system of Formula II wherein X is CH 2 , O or S, and n and m are each integers from 1 to 3 ; R 3  is C 1 -C 6  alkyl, C 3 -C 8  cycloalkyl or phenyl, phenylalkyl or mono- or di-substituted phenyl or phenylalkyl wherein the alkyl portion has 1 to 3 carbon atoms and the substituents may be chlorine, bromine, fluorine, C 1-3  alkylthio or alkoxy, C 1-3  alkanoylamino, trifluoromethyl or N,N-di-(n-propyl)- sulphamyl, phenylheteroalkyl or substituted phenylheteroalkyl of the Formula III wherein X 1  and X 2  are hydrogen, chlorine, bromine, fluorine, C 1-3  alkyl or C 1-2  alkoxy or alkylthio, Z is 0 or S and p is an integer from 1 to 3. Pharmaceutical preparations, e.g. tablets, capsules and suspensions, may be prepared, having a compound of formula I as active ingredient.
Patent GB-332857-A (GB)
Title: Improvements relating to the admission of air to the cylinders of four-stroke-cycle internal combustion engines
IPC: F02B3/00
Filed: 1929-11-13
Abstract: 332,857. Sulzer FrÞres Soc. Anon. Dec. 13, 1928, [Convention date]. Fourstroke - cycle engines; cylinders, ports and passages of.-A charge of air is admitted prior to the exhaust stroke through tangential ports 5, when uncovered by the piston, the ports being directed to deliver the air into and around a trough-like depression 7 in the piston. The air may be at a higher pressure than of the normal air supply through a valve 2 and one or more non- return valves 9 may be provided behind the ports 5 which may extend round the periphery of the cylinder.
Patent GB-788108-A (GB)
Title: Improvements in or relating to apparatus for dispensing liquids by gaseous pressure
IPC: B65D83/14
Filed: 1954-11-30
Abstract: 788,108. Dispensing liquids by gaseous pressure. WARD, L. T. Nov. 30, 1954 [Aug. 16, 1954], No. 34716/54. Class 102(2).. In apparatus for dispensing liquids, the liquid and a propellant liquid are contained in a flexible container 10 within a rigid container 11. The rigid container 11 has a rolled-over lip 13 to which the lip of the container 10 is clamped by a cover 14 carrying a dip tube 18 and discharge valve 15. Alternatively, the flexible container may be attached to the cover 14. To prevent trapping of air between the containers 10, 11, the container 11 has holes 12 which may be fitted with removable plugs.
Patent GB-323613-A (GB)
IPC: B60T7/12
Filed: 1928-11-27
Abstract: 323,613. Berliner Strassenbahn-Betriebs-Ges. Oct. 3, 1928, [Convention date]. Applied by running wheel or axle.-Brake mechanism for trailer vehicles, particularly those of electric tramways, comprises toothed gearing which is put into engagement upon de-energizing a solenoid whereby the brakes are applied by the rotation of an axle of the vehicle. A toothed wheel g arranged for engagement with a toothed wheel d on the axle f of the vehicle drives through a friction coupling a drum r on which winds a chain p the pull of which applies brake shoes to discs a on the axle, through a lever q. The friction coupling comprises a pair of lined discs between which the wheel g is gripped by adjustable spring pressure. The wheel g is suspended from the vehicle frame by links i and is held out of engagement with the wheel d by the normally energized solenoid k acting through rod m and a toggle n. When the solenoid is de-energized, the toothed wheels are engaged by springs o and the brakes are applied. The brakes can be taken off on a detached vehicle by means of a bar u which engages the rod m. The brakes can also be applied from the driver's platform by the connections p and by a fluid pressure cylinder or electromagnet c.
Patent GB-846438-A (GB)
Title: Pressure graduating control valve
IPC: F16K11/07
Filed: 1958-10-31
Abstract: 846,438. Valves. NEW YORK AIR BRAKE CO. Oct. 31, 1958 [March 3, 1958], No. 34979/58. Class 135. A valve comprises a housing with an inlet 23, an exhaust 25, a controlled pressure port 28 and seat lands 18, 19 respectively separating ports 28, 25 and 28, 23, and a valve member 34 having a land 32 movable in either direction from an intermediate position, e.g. straddling port 28 in which it blocks communication between all the ports, to one position blocking communication between 23 and 28 and to another position blocking communication between 25 and 28, and means including portions of the seat and valve lands defining a restricted passage 41 between the part 28 and the other parts whereby the length of the two passages so formed are varied inversely to each other as the valve member is moved in either direction from the intermediate position for varying gradually the pressure at 28. In the right-hand extreme position shown, the inlet connects with exhaust via a side passage 24, 17, and valve groove 37, while passage 12 between the inlet and exhaust is always closed either by land 33 or 34 and the controlled pressure chamber 28 connects with exhaust via groove 35, passage 18, flats 39 on valve end flange 31 and passage 13. Maximum pressure is established at 28 when valve land 32 moves left out of seat land 19 and restriction 41 straddles seat land 18. The valve 34 may overtravel leftwards against spring 42 with lands 18, 19 respectively closed and open when used for sequential operation with another valve.
Patent GB-832578-A (GB)
Title: Cooling fuel injection nozzles in internal combustion engines
Inventor: HAAS HERBERT H
IPC: F01P1/10
Filed: 1957-11-09
Abstract: 832,578. Fuel injectors. CONTINENTAL MOTORS CORPORATION. Nov. 9, 1957, No. 34989/57. Class 7(3) A fuel injection nozzle 20 is surrounded by an annular space 25 connected by a passage 31 to the intake manifold 12 fed with air under pressure so that pressurized cooling air flows through the space 25 which is connected by a vent 36 to atmosphere. The nozzle mounting bore 16 is preferably lined by a steel insert 17 and the nozzle is held in position by a spring 26 and a screwed sleeve 21 which is supported at its upper end by a rocker box housing 10a and surrounds the nozzle body with clearance 34 forming a passage through which the cooling air escapes. A seal 37 forms a non-return valve and prevents air or water being drawn downwards into space 25. The cooling of the tip of the nozzle is increased by a spirally finned member 30 which is machined from a single cylinder.