baber/WOPTO huggingface dataset:
Patent GB-279806-A (GB)
Title: Improvements in or connected with microphones and like devices
IPC: H04R23/00
Filed: 1927-09-27
Abstract: 279,806. De Forest Phonofilms, Ltd., (Assignees of Forest, L. de). Oct. 29, 1926, [Convention date]. Transmitters in which a soundcontrolled light-beam acts on a photoelectric element.-In a microphone in which a sound-controlled light-beam acts on a photo-electric element, light from a source 1, Fig. 1, is passed through an aperture in a member 2 and through a set of lenses 3 where it is condensed so as to be projected upon the curved polished surface 4. This surface is heated, preferably by means of a resistance 5 and battery 5<1>, so as to provide a layer of heated air above it, the light rays passing through this layer and through a slit forming member 6 on to a light sensitive device 7. The amount of light falling on to the device 7 is varied in accordance with sound waves impinging on or directed towards the surface 4. In a modified construction, Fig. 2, light from a source 8 passes through a condensing lens system 9 and aperture in member 10 on to the surface of a polished cylinder 11 provided with heating means 17, 17<1>. A number of mirrors 12 are arranged adjacent the cylinder 11, the light passing as shown to and from the cylinder and mirrors and finally through a slit in the member 13 on to the light sensitive device 14. A modification of this construction is described in which the light is reflected around the polished interior surface of the cylinder, which is suitably interrupted to allow the light to enter and leave. In a further arrangement, Fig. 4, the light is transmitted through the heated air between two adjustable segmental polished cylinders 22, 23 provided with heating coils 24, 25. A slit forming member 27 again confines the light to a thin band which is transmitted to a dark chamber or supporting means 28 within which is disposed a light sensitive cell. Fig. 5 shows a construction in which the light rays are passed between mirrors 33, 34 and a thin curved surface 32 of mica or glass, the heated surface 32 being in this case vibrated by the sound waves. The light then passes through an aperture in the member 35 on to the light sensitive cell 36. The heated air may be replaced by the vapour of any suitable volatile liquid, such as alcohol, ether &c. Thus in the arrangement, Fig. 6, the light rays strike against the concave surface of the member 41 heated by the coil 42. A volatile liquid 39 is contained in a vessel 37 having a stopper 38 at one end and a porous sealing member 40, such as sponge, at the other. The liquid is gradually evaporated from the sponge and rises against the heated surface 41.
Patent GB-616086-A (GB)
Title: Improvements in or relating to means for adjusting the compression ratio of internal combustion engines having cylinders parallel or substantially parallel to the driving shaft
IPC: F01B3/10
Filed: 1946-08-27
Abstract: 616,086. Driving gear. SOC. ANON. DES ATELIERS D'AVIATION L. BREGUET. Aug. 27, 1946, No. 25558. Convention date, Sept. 12, 1942. [Class 7 (ii)] In an engine in which the cylinders 1 are arranged substantially parallel to the driving shaft 10, the compression ratio is varied by adjusting the angularity of the connecting-rods 12. A swash-plate 2, engaging pinions 14, 16 on the shaft 10, rolls on a fixed pinion 3 which is adjustable to vary the compression ratio. It is connected by arms 4 to a sliding ring 6 which carries a rack engaged by one or more pinions 8 rotated by electric motors, preferably through torque-limiting devices. Alternatively, adjustment may be effected by hand, or by the engine itself, and be locked at the end of the stroke. The cylinders are either parallel to the driving shaft or slightly inclined thereto, either as shown or transversely.
Patent GB-361962-A (GB)
IPC: B65D81/133
Filed: 1930-08-27
Abstract: 361,962. Packing bottles. MANN, L., 32, Winfield Avenue, Mount Vernon, New York, U.S.A. Aug. 27, 1930, No. 25613. Convention date, March 12. [Classes 18 and 94 (ii).] A tray 15 of material such as pulp fibre is formed during manufacture, e.g. by the pulp-sucking or felting process with a series of recesses shaped to accommodate bottles B or similar articles, such recesses having shallow neck portions and deep body portions, being of a depth greater than half that of the article to be packed, and being arranged alternately in direction. The recesses have closing end portions 19, 20 at one or both ends, and the tray is arranged to be laterally compressed into a carton 25 of slightly smaller dimensions so that the walls of the recesses will grip the packed articles. The ends of the tray may be provided with cushion flaps 21 having integral protuberances 22. The shallow portions of the recesses which accommodate the bottle necks may be provided with supplementary recesses to prevent the neck portion from being depressed below its normal level. The device may be used as a complete body holder by providing it with a hinged flap which may either be provided with recesses complementary with those in the tray or may be plane.
Patent GB-584239-A (GB)
Title: Improvements in and relating to vehicular endless tracks of the "locked girder" type
IPC: B62D55/22
Filed: 1944-12-21
Abstract: 584,239. Endless tracks for vehicles. ROADLESS TRACTION, Ltd., JOHNSON, P. H., and TRIPP, L. W. Dec. 21, 1944, No. 25667. [Class 79 (i)] In an endless track of the locked girder type, the coacting abutment surfaces of adjacent links are rendered inaccessible to dirt by being enclosed in an encasement which expands and contracts as the abutment surfaces move away and towards one another. The encasement may be a rubber tube-like member which embraces the two abutment surfaces at its opposite ends. Fig. 1 shows two adjacent links 1, 2 whose coacting abutment surfaces 3, 6 are enclosed in a tubular resilient member 9. Fig. 2 shows the two links with their abutment surfaces in contact, the tubular member 9 being deformed into curved recesses 10, 11 provided for the purpose. The resilient encasing members may be of such dimensions and material as will impart a general resiliency to movement of the track links.
Patent GB-796851-A (GB)
Title: A new or improved spray nozzle
IPC: B05B1/30
Filed: 1954-10-29
Abstract: 796,851. Crop sprayers; nozales. EVERS, C. E. ST. J., and WALL E. Sept. 2, 1955 [Oct. 29, 1954], No. 25988/54. Class 69 (3). A nozzle mounted on a spray boom 3 carried by a vehicle includes a rubber diaphragm 9, with one or more slits therein which are normally closed, secured between nozzle parts 1 and 6. During spraying the pressure of the liquid on the diaphragm keeps the slits open, and when the spraying is stopped the slits close to prevent dripping. To prevent sediment from the boom entering the nozzle a feed-pipe 2 extends into the boom from the nozzle. Specification 680,749 is referred to.
Patent GB-166473-A (GB)
Title: Improvements in combined shaving brushes and soap holders
IPC: A45D27/04
Filed: 1920-09-10
Abstract: 166,473. McGuire, J. Sept. 10, 1920. Boxes formed of separate shells combined in tiers; opening arrangements.-A combined shaving-brush and soap-holder comprises a brush 10 permanently fixed to a base 11, a soap-holder 14 having a closure cap 15 at one end, and a plunger barrel 16 with a closed end 17 at the other, and a tubular shell 12. The parts 12, 14, 15, 16 are formed from sheet metal &c. and are screw-threaded. The shell 12 is fitted with a knob 13 and accommodates the brush in the inoperative position and forms a handle therefor when the threaded base 11 is screwed out, and the brush is in use. The barrel 16 accommodates the shell 12 and is adjustably screwed into the holder 14, its closed end 17 pressing the soap S into the desired position. A gasket 20 held in place by a disc 21 is fitted to the end of the plunger barrel.
Patent GB-1206855-A (GB)
Title: Apparatus for mowing or harvesting crops
IPC: A01D34/63
Filed: 1968-05-31
Abstract: 1,206,855. Mowers. FELLA-WERKE G.m.b.H. 31 May, 1968 [2 June, 1967], No. 26088/68. Heading A1F. A mowing or harvesting machine consists of a carrier beam adapted to be attached at one end to the three point hitch of a tractor and with mowing rotors 8, 9 carrying rotary cutting elements attached to the other end, the rotors being driven from bevel gear 10 via a twice crossed driving belt. The two parts 1, 2 of the carrier are hinged about pivot pin 3 and the outer part 2 is held in its working position by a spring-loaded safety catch 4. The driving belt 11 of hexagonal crosssection passes from pulley 12 on bevel gear 10, crossed to twin pulleys 13, 14 on rotor 8 and crossed again to the other rotor 9, the crossing of the belt between pulleys 12 and 13, 14 coinciding with pivot pin 3 to avoid disrupting the drive transmission when the mower swings back to avoid an obstacle. The cutting circles of the blades 17 of the rotors leave a small gap which is bridged by fingers 25 arranged to direct crop into the path of the rotors.
Patent GB-1192614-A (GB)
Title: Improvements relating to Electromagnetic Oscillators
IPC: H02K7/06
Filed: 1967-06-07
Abstract: 1,192,614. Oscillating electric motors. SOC. ANON. DES ETABS. LEON HATOT. 7 June, 1967 [28 June, 1966], No. 26226/67. Heading H2A. [Also in Division G3] An electromagnetic oscillator comprises at least one flexion vibrator cruciform element having four equal flexible branches L1, L2 radiating in a single plane perpendicular to an axis a-a from a central fixed support S along two mutually perpendicular diameters and provided at their ends with magnetic armatures A1, A2 a stationary pick up and a stationary motor winding Bob each common to all branches and coaxial with the axis, and an electric circuit P, TR, &c. to energize the motor winding in response to signals induced in the pick-up winding to maintain the branches in vibration parallel to the axis by applying to the ends of each pair lying on the same diameter oscillating forces of the same magnitude and direction those F1 on half the pairs being of opposite phase to those F2 on the remaining pairs. The branches may be of metal e.g. Elinvar, or quartz, and formed separately or integrally. The armatures are permanent magnets e.g. of ferrite, and both they and the windings may be of the straight form shown or, Fig. 4, circular. The oscillatory motion may be converted to a rotary motion for driving a clock by the addition of poles P1, P2 which couple with magnetized poles p of a rotor wheel R fixed on a rotary spindle r driving, through gear trains E1 . . . E3 clock hands I1 ... I3 The oscillation frequency of, e.g. between 10 and 1,000 c.p.s., may be regulated by a system of masses, and self-starting and unidirectional rotor movement achieved by making the poles p ... p2 or their intervening notches asymmetrical; or a mechanical ratchet may be provided.
Patent GB-362434-A (GB)
Title: Improvements in carburetters for internal combustion engines
IPC: F02M1/00
Filed: 1930-09-03
Abstract: 362,434. Spray-carburetters. ROYCE, SIR F. H., Nightingale Road, Derby. Sept. 3, 1930, Nos. 26280 and 27045. [Class 7 (iii).] In a carburetter having a fuel pump actuated from the throttle valve to facilitate acceleration, the passage from the pump to the nozzles is provided wit h a valve the influence of suction upon which is not such as to urge it to open,and an alternative restricted passage for the fuel from the p u m p i s provided otherwise than to the nozzles. The c a rburetter comprises two choke tubes a, Fig. 1, each controlled by a throttle valve al and containing main nozzles a<2> of the air-bleed type. Passages a<4> deliver fuel for slow-running to outlets a<5> adjustable by screws a<6>. Flow of fuel for normal running is controlled by metering devices a<7>, The pump comprises a hollow plunger c, Fig. 3, closed at its lower end c<1>, and working with a loose fit in a sleeve b<3> reduced externally at its lower end to form an annular space b<7>. The plunger is resiliently connected to its actuating-rod b by means of spring-pressed blocks c<4>, c<5> engaging a spherical enlargement at the lower end of the rod, the blocks being slotted to prevent pumping action in their movement relative to the plunger. The space above the sleeve b<3> and surrounding the upper part of the plunger is in direct communication with the float chamber and below the normal fuel level. The rod b is actuated from the throttle through a lever h, Fig. 1. Fuel from the pump passes to the nozzles through conduits d, e<3>, d<2>, d<3> and g, restrictions being provided at g<1> to equalize the flow. A needle valve f is carried by a piston f and is forced by a spring f<4> against the upper end of conduit e<3>. The piston is grooved, and slides in a bush d<4> which is reduced externally at its upper and lower ends to form annular chambers e<1>, e communicating with the interior of the bush through holes e<2>, ee<2>. For sluggish opening movements of the throttle valve and therefore of the rod b, the whole of the pump plunger will move downwardly as a unit, but the pressure will be insufficient to raise the valve f since the fuel will escape through the clearance cc. If, however, the rod b be moved suddenly, the valve f<1> will be raised and fuel will pass to the nozzles. Upon rapid movement of the rod b, the block c<4> will be depressed against the action of the spring c<6> which, in returning to its normal state will push the cap c<1> and plunger downwardly thus giving a prolonged feed of fuel. Leakage past the piston f escapes to the space above the sleeve b<3> by way of the duct i.
Patent GB-765124-A (GB)
Title: Improvements in voltage controller
IPC: G05B11/01
Filed: 1954-09-10
Abstract: 765,124. Transformers. PERKIN-ELMER CORPORATION. Sept. 10, 1954 [Sept. 15, 1953], No. 26285/54. Class 38 (2). [Also in Group XXXVII] A voltage controlling device comprises an inductor or potentiometer provided with tappings which are connected to a series of terminals, an impedance being connected to successive pairs of the terminals, which impedance has a contact moving along it so that a variable voltage may be obtained which voltage is continuously variable from zero to a maximum. An autotransformer 31 is provided with a number of tappings 34 which are connected to a series of terminals 35 arranged in a circle and secured to a fixed gear 28 provided with teeth internally and concentric with an operating shaft 22. Moving contact members 40 which have tongues 41 to make contact with the terminals 35 are fixed to a gear 29 which is arranged internally of the gear 28 and eccentrically to the shaft 22. The number of teeth on the gear 29 is less than the number on the gear 28 so that on rotation of the shaft 22 in one direction the gear 29 rolls around the gear 28, thus the tongues 41 execute a hypocycloidal movement in the opposite direction, each tongue dwelling on a contact 35 during two-thirds of a revolution of the shaft 22 and moving from one contact 35 to the next during the remaining third of a revolution of the shaft. Also secured to the gear 29 is a potentiometer winding 45 which is divided into three sections by clips 46 connected to the contacts 40. Insulatingly fixed to the shaft 22 is a contact member 56 having a tongue 57 which makes contact with an output terminal 58 of the device; rotation of the shaft 22 moving the contact member 56 over the potentiometer 45. In Figs. 15, 16 the sections of the potentiometer 45 are represented by AB, BC, CA and the terminals 35 by 1 to 6. Initially the tongues 411 connect the potentiometer 45 to three terminals 35; as shown 1, 2, 3. As the shaft 22 is rotated the contact 56<SP>1</SP> moves along one section-AB- of the potentiometer, the tongues 41<SP>1</SP> remaining connected to the terminals 35. As the contact 561 approaches the point B and passes it the tongues move from one contact to the next so that the potentiometer is connected to terminals 2, 3, 4 with the contact 56<SP>1</SP> moving along the next section-BC-of the potentiometer 45. The arrangement is such that the contact 56<SP>1</SP> is always moving along a section of the potentiometer connected between two terminals 35 so that a smooth variation of voltage is obtained from zero throughout the voltage range. The auto-transformer winding 31 may be replaced by a potentiometer winding for direct current use. The potentiometer 45 may, if desired, be replaced by three interconnected auto-transformers. In another embodiment the position of the fixed and moving gears may be reversed, giving the tongues an epicycloidal movement.
Patent GB-1183468-A (GB)
Title: Pore Free Die Casting
Inventor: RADTKE SCHRADE FRED
IPC: B22D17/14
Filed: 1967-06-07
Abstract: 1,183,468. Die-casting machines. INTERNATIONAL LEAD ZINC RESEARCH ORGANIZATION Inc. 7 June, 1967 [30 June, 1966], No. 26311/67. Heading B3F. In a die-casting process the die cavity, vents and runners are purged with a suitable gas to remove air therefrom, the said gas combining with the subsequently injected molten metal to produce pore-free castings. The term " suitable gas " is defined as any gas which combines with the molten and solidified metal by mechanical, physical or chemical means within the die cavity and results in the disappearance of the gas. The gas may combine to form products which are soluble in both the molten and solidified metal or which can be randomly dispersed throughout the solidifying metal without adversely affecting the quality of the casting. The gas may be oxygen, chlorine or bromine or a vapour of zinc, aluminium or magnesium. The molten metal may be zinc, aluminium, magnesium, tin or brass or an alloy containing these metals. The gas may be provided through a supply line to the vents, runners and die cavity at a higher than ambient pressure, or the die may be operated in a sealed enclosure containing the reactive gas.
Patent GB-823797-A (GB)
Title: Improvements in or relating to magnetic fasteners
IPC: E05C19/16
Filed: 1956-08-29
Abstract: 823,797. Magnetic fastenings. GREENMAN, C. Aug. 15, 1957 [Aug. 29, 1956], No. 26404/56. Class 44 [Also in Group XXXV] A fastening device comprises an assembly of a magnetized block of ceramic material embodied with magnetizable particles to form a "ferrite" capable of holding a magnetic charge and formed with one or more flat faces, and means loosely mounting a ferrous or other keeper plate of magnetic material face to face against one or each flat face of the block with one edge so disposed as to form a magnetic pole piece adapted for magnetic co-operation with a complementary magnetic member of the fastening. As shown, the device comprises a magnetizable ceramic block 4, against opposite faces 5 of which are loosely mounted soft iron plates 6 of the same shape and size as the block 4, the sandwich unit so formed being pivotally mounted in a non-magnetic casing 1 by means of studs 11 projecting from the plate 6 and engaging holes 12 in the casing. The mounting arrangement -is such that edges 7 of the plates 6 project from the casing 1 and constitute pole pieces which co-operate with a magnetic member attached to the part to be held by the sandwich unit. The casing is formed from a stamping of the shape shown in Fig. 5. The block 4 may be magnetized after assembly in to the casing. A plurality of sandwich units may be housed in a common casing with their edges projecting through the same or different openings in the casing.
Patent GB-991868-A (GB)
Title: High-tension switchgear protected against explosions and firedamp
IPC: H01H1/22
Filed: 1962-07-10
Abstract: 991,868. Switchgear structures; actuation of switches; switch contacts; switch cases. ZAKLADY WYTWORCZE APARATURY ROZDZIELCZEJ. July 10, 1962 [Nov. 28, 1961], No. 26443/62. Heading H2B. A switchgear for use in damp or explosive atmospheres has a casing comprising a cylindrical circuit-breaker chamber 1 and a plurality of isolator and terminal chambers 10, 12 arranged along the base and one side thereof and connected thereto by sleeves 29 which carry insulating bushes 30. The chamber 1 encloses voltage and current transformers 3, 4 and an overload relay 5 besides the circuit breaker 2 and also carries a number of metering and measurement boxes (Fig. 1, not shown). The chamber 1 is closed and sealed by a hinged door 14 which carries a plurality of peripheral projections 18 corresponding with similar projections 19 on the casing, the door being locked by rotating a ring 21 so that projections 22 thereon clamp the projections 18, 19 together. The door 14 carries an actuating mechanism (Fig. 7) having holes 44 engaging with dogs 45 on breaker actuating shaft when the door is closed. To operate the breaker a lever 47 is turned in the direction of the arrows, turning freely about the housing 14; thereafter it is turned in the opposite direction so that the enlarged tip 53 of a pin 51 drives a pivoted arm 47a into the broken line position shown. Slight further movement causes the arm 47a to engage in a groove 54 in the tip 53. Finally lever 47 is again turned in the direction of the arrows, the arm 47a driving the pin 51 against its bias 55 into a hole 50 in part of a sleeve 43 in which are formed the holes 44. Continued turning of the lever 47 causes the sleeve 43 to turn therewith to operate the breaker through suitable springs (not shown). Each chamber 10 contains a three-phase (Fig. 4, not shown) isolating switch comprising a shaft 35 with bosses 35a each having a pair of contact blades 33 supported therein by projections 38 and by a spring 41 and plates 39. The blades 33 are biased together by springs 42 to grip the fixed contacts 34 which are formed directly on the conductors passing through the insulating bushes 30.
Patent GB-807250-A (GB)
Title: Improvements in grinding or lapping wheels
IPC: B24D7/16
Filed: 1956-08-30
Abstract: 807,250. Abrasive wheels. WINTER, W. Aug. 30, 1956 [Jan. 26, 1956], No. 26501/56 Class 60. A grinding or lapping wheel comprises a ring-shaped body 1, Fig. 1, carrying an abrasive coating la, a central hub part 4, a spring diaphragm disc 5 connecting the ring-shaped body with the hub, and a disc 3 clamping the diaphragm to the hub part. The diaphragm has a peripheral ring 2 which is secured by screws 2a to the member 1, and the clamping disc 3 is provided on its opposite faces with ribs 3a and 3b; the tendency of the diaphragm to take up an oblique position under the action of a grinding pressure P applied as shown will be hindered by its engagement with the cooperating rib 3b at the opposite side of the wheel to that which receives the pressure. The ribs 3a, 3b are at different radii so that by reversing the ring a different hindering effect can be produced. If the hub part 4 and clamping disc 3 are interchanged, the spring action of the diaphragm is eliminated and the wheel will be rigid. In the modification shown in Fig. 4, the diaphragm 5 is clamped to the hub part 4 by a nut 9 which can be adjusted to vary the elasticity of the diaphragm and balls 8 are located in opposed notches 6<SP>1</SP>, 7<SP>1</SP> provided in the ring- shaped body and the hub part 7. The grinding pressure Pi applied to the periphery of the wheel causes flexure of the diaphragm in the region of the gap R. In the further embodiment shown in Fig. 5, the abrasive coatings la, 6a are provided on both the sides and the periphery of the ring-shaped body which is mounted in similar manner to that shown in Fig, 4 ; the hub 7a is secured by a nut 10 on the spindle 11.