baber/WOPTO huggingface dataset:
Patent GB-610793-A (GB)
Title: Improvements in and relating to protective means in electrically driven power transmission gears
IPC: B66C15/00
Filed: 1946-04-16
Abstract: 610,793. Transmitting mechanical power. McEWAN & CO., Ltd., W., and FERRIS, J. T. T. April 16, 1946, No. 11732. [Class 38 (iv)] [Also in Group XXXVII] An electric motor drives transmission gearing through a slipping or friction clutch, and a centrifugal device, which is coupled to the driven member of the clutch, disconnects the motor when the speed of the driven clutch member falls on excessive load. An electromagnetic brake which is held off when the motor is energized is provided to prevent running back of a hoisted load. The clutch is shown as comprising a splined driving member a<SP>2</SP> on which is fitted a friction plate b cooperating with a plate c and a driven member d. The two plates are held together by means of springs g mounted on the member d. The centrifugal device comprises two rods which are slidable in a guide i and which carry weighted end members k having carbon contacts l. Springs m tension the weighted end members. The brushes l are adapted to contact with an annular member fast with the gearing casing.
Patent GB-408101-A (GB)
Title: Improvements in ophthalmic mounting
IPC: G02C5/06
Filed: 1933-04-22
Abstract: 408,101. Spectacles. FLEXRITE SALES CO., Providence, Rhode Island, U.S.A. April 22, 1933, No. 11840. Convention date, April, 25, 1932. [Class 97 (i).] An ophthalmic mounting comprises a rigid bridge provided with nose pads carried by arms rigidly secured to the bridge for permanent adjustment, and lenses pivotally mounted with reference to the bridge to turn about vertical axes. The Figures show a pair of rimless spectacles in which the bridge 15 is provided with downwardly extending pivots 20 which fit into apertures 24 in sockets 23 carried by the lens straps 21. Each socket has an enlargement 25 containing a spring 26 surrounding the pivot, the spring being secured at one end to a projection 27 on the bridge, and at the other end to a pin 29 on the strap 21. The springs urge the lenses about the pivots 20 towards the wearer's face, movement in this direction being limited by the projections 27 abutting against the lens straps. The temple-pieces may be similarly connected to the lenses, each temple connection being formed in two parts 33, 35, Fig. 8, of which the part 33 is secured to the lens and the part 35 is bifurcated to receive the temple 37. The part 33 is provided with a socket 38 which receives a pivot pin 39 on the part 35, and a spring 40 is provided around the pivot. The nose guards 45 are mounted on arms 46 secured to the bridge. Specification 382,388 is referred to.
Patent GB-199549-A (GB)
Title: Improvements in apparatus for distributing electric current
IPC: H02G3/16
Filed: 1922-04-28
Abstract: 199,549. British Insulated & Helsby Cables, Ltd., and Nisbett, G. H. April 28, 1922. Distribution boards. - The current from a supply cable is supplied directly to the several connecting parts of a. plurality of distributing boxes, the main supply cable being passed, in succession, through holes extending laterally through the several boxes. In the arrangement shown in Figs. 1 and 2, the supply cable 5 is divided and passed transversely through a number of assembled insulating sections 1 each of which provi'des for a branch connection 26, through double-pole screw-plug fuses 10, to the supply cable which serves as a bus-bar. The branch cables are connected to terminals 25 which are connected in turn to the fixed screw shells of the screw-plug fuses, the fixed abutment contacts of which are connected to the supply conductors. In order to ensure that the correct screw-plug fuses are used in their respective sockets, a ring 11<x>, Fig. 2<A>, is secured upon the fixed screwed shell to prevent any but the correct fuses being screwed fully down. In a modification, bridge-carrier fuses are employed.
Patent GB-353418-A (GB)
Title: Improvements in electric measuring apparatus
IPC: G01R11/48
Filed: 1930-04-15
Abstract: 353,418. Power and supply meters. YOUNG, A. E., 1524, Asbury Place, Pittsburg, U.S.A. April 15, 1930, No. 11939. Convention date, Feb. 4. [Class 37.] A watt-hour meter for alternating or continuous current comprises restrained motors 26, 29 energized by the current and voltage of the line A, B, and oscillating levers 2, 22 provided with contact brushes 3 reciprocated in guideways 4. Drums 5, 55, of which drums is constantly rotated by an electric or other motor 6, are provided with contact strips 8, 9. The strips 9 are inclined to the strips 8, and the zero position of the brushes 3 being assumed just clear of the strips at their point of nearest approach, the arrangement of these parts is such that as the brushes slide in the guideways 4 their distance from the zero position is always proportional to the distance apart of the strips measured circumferentially. On contact of the brushes with the strips 8 relay 19 is energized and a circuit to diametrically arranged electromagnets 14 is closed, teeth 12 thereupon engaging the driving wheels 11 and actuating a counter 23. As the brushes pass strips 8 the teeth are latched and rotation of the counter occurs until the brushes engage strips 9 whereupon electromagnets arranged at right-angles to those 14 are energized to unlatch the mechanism. As the drum 5 is driven at a constant speed drum 55 is rotated for a fraction of a revolution of drum 5, the counter spindle, which is rotated for a friction of a revolution of drum 55, moves proportionally to the product of volts and amperes. Specification 340,217, [Group XIX], is referred to.
Patent GB-946513-A (GB)
Title: Preparation of spherical uranium dioxide particles
IPC: C01G43/025
Filed: 1962-03-29
Abstract: High density uranium dioxide spherical particles are prepared by adding 1-5% water to sinterable uranium dioxide powder, tumbling until spherical particles are formed and sintering at at least 1750 DEG  C. in a reducing atmosphere. The sintering may be carried out by first heating to about 1200 DEG  C. and thence to 2000 DEG  C. in increments of 200-250 DEG  C., the temperature being maintained for at least two hours after each increment.  The sinterable uranium dioxide may be prepared by either precipitating ammonium polyuranates from uranyl fluoride solution with excess ammonium ions, converting the precipitate to U3O8 with steam, reducing the U3O8 to UO2 with hydrogen and stabilizing by slight reoxidation, or by precipitating peruranates from uranyl nitrate solution with excess hydrogen peroxide, filtering and calcining the precipitate at 600 DEG  C. and reducing the calcined product at 600 DEG  C. Specification 937,330 is referred to.
Patent GB-141928-A (GB)
Title: Improvements in combined steering and propelling mechanism, with a reversing action,applicable to ships, boats, and the like
IPC: B63H20/16
Filed: 1919-05-15
Abstract: 141,928. Copland, P. May 15, 1919. Detachable propelling-installations. - The rudder carries the propeller, which is reversible, and the whole is detachably secured to the ship or beat. A board or plate 3 is mounted on the usual rudder-irons 1 and is prevented from turning by the clamps 4; or, alternatively, the plate 3 may be permanently secured to the vessel. The board 3 carries bearings 7 in which a vertical shaft 8 having bevel-wheels 9, 10 is mounted. The rudder 14 carries a casting 16 provided with bearings 39 through which the shaft 8 passes, and a bearing 17 is also formed in the casting 16 for the support of the shaft 13 carrying the propeller 19. The propeller shaft carries also a bevel-wheel 12 which may mesh with either of the wheels 9, 10, or with neither. The upper end of the shaft 8 carries a sprocket-wheel 21 mounted in a cage composed of two arms 22, 23, the arm 23 having a socket 24 fitting over the top of the board 3. The propeller is driven from a motor 26 through a sprocketwheel 28, chain 29, sprocket-wheel 21, and bevelwheels 9 or 10, and 12. In order to stop or reverse the propeller, the shaft 8 is lifted vertically to disengage the bevel-wheels 9, 12, leaving the wheel 12 free, or placing it in engagement with the wheel 10. The shaft 8 is lifted by means of the forked lever 30 pivoted at 31, and retained in any desired position by means of the bolt 34 engaging with the slotted rack 37. The rudder is operated in the ordinary manner by the tiller 37<a>.
Patent GB-107865-A (GB)
Title: Improvements in or relating to Means for Lubricating Engines particularly those of Automobile Torpedoes.
IPC: F16N11/08
Filed: 1916-08-31
Abstract: 107,865. Whitehead Torpedo Works, and Ridsdale, H. W. Aug 31, 1916. Force-feed lubricators.-A lubricator for the engines or motors of automobile torpedoes, applicable also to compressed-air or combined compressed-air and internal-combustion or combustion-product engines for other purposes, is arranged to flood the bearings with lubricant when the engine is started, the subsequent supply being controlled by the engine in proportion to its speed. Lubricant is delivered from a cylinder a, Fig. 2, by a piston b, g acted upon by working-fluid admitted at c. The fluid first depresses the piston against a spring f, giving an initial flooding, and the subsequent supply is controlled by a 'rod e which forms an abutment for the spring and is moved downwards at a rate depending on the speed of the engine. After a time depending on the pressure of the fluid and the strength of the spring, a stop comes into contact with the rod e, and the supply is then controlled solely by the engine. Fig. 5 shows a modification in which the piston b is depressed against two springs f, f<1> abutting against a plate p carried by two sleeve nuts n, n<1> which are moved downwards by the rotation of screwed rods m, m<1> by worm gearing l, k operated by the engine.
Patent GB-321141-A (GB)
Title: Armchair or sofa tray
IPC: A47C7/68
Filed: 1929-04-22
Abstract: 321,141. Sequeira, H. April 22, 1929. Tables combined with seats.-A table-like tray for use on the arms of upholstered chairs &c. consists of an oval or other shaped tray A with a strip B of wood on its underside, to which are secured by hinges D two strips C, E adapted when opened out to grip the arm of the chair &c.
Patent GB-1122558-A (GB)
Title: Process for producing cf and ccif
Inventor: MANION JEAN PATRICK
IPC: C07C17/37
Filed: 1967-03-16
Abstract: Tetrafluoromethane and chlorotrifluoromethane are obtained by passing dichlorodifluoromethane into a region of transitional electrical discharge (i.e. a discharge in a gas which occurs during the transition from the relatively low current and high voltage glow discharge to the high current and low voltage discharge of the electric arc) at a pressure of at least 200 mm. of Hg.  If desired, the chlorotrifluoromethane obtained may be recycled to increase the yield of tetrafluoromethane.
Patent GB-129248-A (GB)
Title: An Improved Anti-friction Bearing for Connecting Rods of Internal Combustion Engines and the like.
Inventor: BRADSHAW GRANVILLE EASTWOOD
IPC: F16C9/04
Filed: 1917-03-07
Abstract: 129,248. Bradshaw, G. E. March 7, 1917. Channels in roller bearings.-In a roller bearing for internal-combustion engine connecting- rods &c. of the kind described in Specifications 24190/14 and 105,216, [both in Class 12 (i), Bearings &c.], an oil hole g, Fig. 1, is provided in one of the retaining-collars G. As shown in Fig. 3, oil passages j formed in the crank webs terminate in cups j<1> into which oil is thrown as the crank revolves to lubricate the rollers. Specification 128,232, [Class 12 (i), Bearings &c.], also is referred to.
Patent GB-911548-A (GB)
Title: Improvements in or relating to multiple magnetic shift registers
IPC: H04L13/08
Filed: 1959-04-13
Abstract: 911,548. Code telegraphy. PHILIPS ELECTRICAL INDUSTRIES Ltd. April 13, 1959 [April 16, 1958], No. 12439/59. Class 40 (3). [Also in Group XIX] A multiple magnetic shift register comprises a common series of memory cores and a number of individual series of memory cores associated with a corresponding number of sources of information, information received in an individual series being transferred with a oneplace shift to the common series and then transferred back to the individual series, the transfers being effected at the occurrence of pulses supplied by a common pulse distributer. The invention is applied to the reception of telegraph signals, which may be distorted, and their subsequent re-transmission or recording. Fig. 1 shows two telegraph lines TA, TB and their associated individual series of memory cores KA1-KA8, KB1-KB8. A pulse distributer PV1 supplies pulses to reading and recording conductors such as HAL 1 , HAS 1  at a rate of 15 pairs of pulses for the average duration of each element of the telegraph signal. The relationship of these pulses to an example of a telegraph signal is shown in Fig. 3. While no signal occurs on line TA gates P and PA are open and cores KA1-KA8, and therefore the cores K1-K8 at each connection thereto, are maintained in the condition shown in lines a-c of Fig. 2. When, however, a start pulse arrives on line TA, gates P and PA close and the individual and common series of memory cores respond to successive pairs of pulses from the distributer in the manner shown in Fig. 2. Cores K2-K5 comprise a counter which goes through a cycle every 15 pulses and cores K6-K8 recycle every 7 pulses. At the mid-point of each cycle of K2-K5, coincidence gate CS1 supplies a pulse to core K9 and so to core KA9. By the interrelationship of gate PA and circuit CS1, core K9 assumes a state which corresponds to the state of telegraph line TA. At the 98th pulse coincidence gate CS2 receives pulses simultaneously from K6-K8 and CS1 and restores the shift registers to the rest state, which is maintained until the next start signal is received. The information received may be re-transmitted by a trigger unit TU, Fig. 1, or may be supplied to a regenerative telegraph repeater, Fig. 4. The horizontal conductors running through the series of memory cores are pulsed sequentially by a distributer with a repetition time corresponding to one element of a telegraph signal. The elements of the signal are sent from the individual series KA10-KA14 to the common series K10-K14 and back again with a one-place shift. When the start element is read out of KA14 a read-out pulse is applied to all elements K10-K14 to transfer the readings simultaneously to a register KA15-KA19 for the control of a perforator or other register. Specification 911,547 is referred to.
Patent GB-310285-A (GB)
Title: Improvements in percussion bombs for rifles or bomb-firing appliances
IPC: F42C15/295
Filed: 1929-04-22
Abstract: 310,285. Bossone, A. R. April 20, 1928. [Convention date]. Projectiles; fuzes. - Relates to bombs fitted with a spring striker 7 held cocked by balls 8, and consists in holding these balls in position by a cup 10, which is released at the beginning of the flight of the bomb. The bomb can be discharged from a rifle by means of a stem 16 and has a cylindrical body 1 tapered at the front end and provided with a screwed base 2 which, when detached, allows the bomb to be filled. A tube 3 is screwed into the front tnd of the bomb and carries a detonator 6, a percussion cap 5<1>, and the spring striker 7 which is held cocked bv the balls 8 confined in a groove in the striker by the locking cup 10. This cup is normally locked in place by a screw 11 screwed into a dome-piece 4, itself screwed to the end 3<11> of the tube 3. A windmill 12 is fitted at the outer end of the screw 11 and is normally enclosed by a cap 13, which is attached to the bomb by a bayonet-joint 14. A finger 15 on the cap 13 engages the windmill 12 and' slightly screws and unscrews the screw 11 when the cap 13 is attached and detached. This partial unscrewing of the nut the cap is detached makes the windmill free to operate when the bomb is thrown. During the flight of the bomb, the windmill unscrews the screw 11 from the dome 4 and leaves the cup 10 free to be dislodged by the shock of impact, when the spring striker is released and explodes the bomb.
Patent GB-1429793-A (GB)
Title: Differential amplifiers
IPC: H03F3/45
Filed: 1972-03-17
Abstract: 1429793 Transistor amplifying circuits FYLDE ELECTRONIC LABORATORIES Ltd 8 March 1973 [17 March 1972] 12523/72 Heading H3T A D.C. differential amplifier which has a single output 32, Fig. 2, with respect to a reference potential comprises an amplifier 10 having a balanced input and a feedback circuit 36 developing a feedback which is in series with the input of the amplifier for defining its gain, the feedback circuit comprising a network of one ore more active semi-conductor devices and one or more resistors. The feedback circuit has terminals 38, 40 to which the two inputs of the amplifier 10 (Fig. 2) are connected, while the signal inputs are applied to terminals 24, 26, and negative feedback is applied to terminal 42 from the output of the amplifier 10 (Fig. 2). The arrangement comprises a double transistor 58, 60 the emitters of which are fed from corresponding current sources comprising transistors 70, 74 and 84, 86 respectively. Transistors 72, 86 comprise a further double transistor provided with base bias by means of resistors 98, 100; the feedback is applied to the emitter of transistor 86 via resistor 92 and to the bases of transistors 72, 86 via resistor 94. Resistor 52 determines the overall gain and provides means for its variation. The Specification states that field-effect transistors may be employed and the circuit may also be in integrated form.
Patent GB-542941-A (GB)
Title: Improvements in and relating to bricks
IPC: E04B2/14
Filed: 1940-08-02
Abstract: 542,941. Bricks. STANTON IRONWORKS CO., Ltd., and WORTHINGTON, W. G. Aug. 2, 1940, No. 12524. [Class 87 (i)] In the manufacture of a building or like brick, an oversized brick in the green or plastic state has part of its interior removed, as by means of equally spaced orifices b, Fig. 2, after which it is compressed to close these orifices and simultaneously form a frog d, Fig. 3, and to leave the brick in its finished size or a suitable contracted size which will give the finished size after drying and burning.
Patent GB-344272-A (GB)
Title: Improvements in devices for testing grinding discs for hardness
IPC: G01N3/40
Filed: 1930-04-23
Abstract: 344,272. Testing hardness of grinding discs. LINDNER, H., 57, Fruchtstrasse, Berlin. April 23, 1930, No. 12549. [Class 106 (ii).] A grinding disc after being first trued up is tested for hardness by applying a pressure roller to the disc for a given number of revolutions at a reduced speed and measuring the impression made by the roller, an air or water jet being played on the work during the trueing up operation. A holder 23 for a grinding tool 25 carries also a pressure roller 24 made of wolfram or a cobalt alloy and a nozzle 26 for air or water. The holder may be given a coarse adjustment parallel with the axis of the grinding disc by turning the spindle 55. The holder is mounted on a block 22 which is dovetailed into a part 13 and may be traversed parallel to the axis of the grinding disc by a screw 19. The block 13 has a rocking movement about the fulcrum 3 and is tilted normally so that the holder engages the work by means of a weight attached to a cord D passing over the curved end of an arm 7 on a pivot 8 the boss of the arm being toothed to engage teeth on a plate 11 secured to the block 13. A screwed stop 12 limits this movement relatively to the bed 5, which itself is adjustable to and from the axis of the grinding disc. A dial gauge 15 engages a flat on the bed 5. The spindle 28 of the grinding disc is driven from an electric motor having on its shaft a pinion 29 which gears with a wheel 30 loose on the shaft 28, but which may be clutched to it by moving the member 31 to the right, Fig. 5. This drives the shaft 28 and the grinding disc at a high speed for trueing up. By moving the clutch member 31 to the left, Fig. 5, the shaft 28 is driven from the spindle 44 by a bevel gear 40, 39 and worm gear 37. The shaft 44 is normally clutched to the motor spindle by a clutch 41, 42 which may be released by a cam 46 on a shaft 47. This shaft has a worm wheel in gear with a worm 49 on the sleeve 36 so that the shaft 47 receives a slow movement therefrom. After one revolution of the shaft 47, the clutch 41, 42 is disengaged and as the momentum of the parts 40, 39 &c. is small and the wheel cannot drive the worm 38 the stopping is accomplished instantaneously. The pump is driven from a pulley 50 driven by helical gear 43 from the motor shaft. A dashpot device is provided for reducing vibrations in the tool support.
Patent GB-611268-A (GB)
Title: Improvements connected with ironing table tops, sleeve boards or the like
IPC: D06F83/00
Filed: 1946-04-26
Abstract: 611,268. Ironing - boards. CHARLESWORTH, F. J. April 26, 1946, No. 12583. [Class 138(ii)] An ironing-board comprises a meshedmetal base 3 which is mounted on and secured to a supporting frame 1 in a stretched condition. The base 3 is provided with downwardly-extending peripheral flanges 4 which, when the base is in position on the frame, are bent over on to the underside of the latter, being welded thereto, if desired. The frame 1, which may be formed of angle-section members braced by cross-battens 2, may have a member 9, Fig. 6, of angle or other section provided along its side edges in order to conceal the flanges 4 of the base 3. The side edges of the frame and base diverge from the pointed end of the board so that, by sliding the base 3 endwise on the frame, it becomes tautened thereon; alternatively, or in addition to this arrangement, the cross-battens 2 may be pivoted to one side link of the frame and engage, with a force fit at their free ends, stops provided on the opposite side limb of the frame. The felt or like cover 6 for the board may be stitched to the base 3.
Patent GB-659865-A (GB)
Title: Improvements relating to sheet metal fastening devices
IPC: F16B5/12
Filed: 1949-05-12
Abstract: 659,865. Fasteners. TINNERMAN PRODUCTS, Inc. May 12, 1949, No. 12694. Convention date, Nov. 8, 1948. [Class 44] A strip metal fastener for securing a moulding 1, Fig. 4, or the like to an apert u r e d supporting panel P comprises a base 11, a head portion 20 attached thereto and provided with a pair of spring arms 24, a shank which is formed from a pair of legs 12, and a pair of spring fingers 18 depending from the base 11 which co-operate with the spring arms 24 in engaging the moulding. The V-shaped legs 12 terminate in flat abutting portions 14 and are cut away to form tongues 15, Fig. 2, which are corrugated at 17. Slits are cut above the apertures to delineate the spring fingers 18. Two head portions 20, formed on either side of the base 11 and connected thereto by web portions 21, extend slightly downwardly when untensioned. On inserting the fastener into aperture 7 until the ends 16 of the tongues 15 bear against the under surface of the panel P and then forcing the moulding 1 from its dotted position Fig. 4 to the full line one, the rounded cam portions 25 of spring arms 24 snap over the flanges 3 of the moulding, the inclined head portions 20 increasing the force exterted by the spring arms.