baber/WOPTO huggingface dataset:
Patent GB-809554-A (GB)
Title: Caster wheel mounting for corner drive truck
Inventor: QUAYLE GEORGE FRANCIS
IPC: B62D7/04
Filed: 1956-04-12
Abstract: 809,554. Castor wheel mountings. YALE & TOWNE MANUFACTURING CO. April 12, 1956, No. 11134/56. Class 108(2) An industrial truck comprises bearing means 30 on which a wheel 15 rotates in contact with the ground, pivot means 18, 19, for providing castering movement for the wheel 15, means 24, 25, mounting the means 30 and wheel 15 for tilting relatively to the ground, and further means 35 for resisting the tilting movement. As shown, the wheel 15 comprises a pair of wheels mounted on a spindle 30 carried at the end of links 25. The other ends of the links 25 are journalled at 24 on a member 20 rotatably mounted by virtue of bearings 18, 19, relative to the frame 16 of the truck. The member 20 carries spaced abutments 36 for respective coil springs 35 which bear at their lower ends on abutments 37, 37, journalled at opposite respective ends of the spindle 30. The journal surfaces of the spindle 30 which engage the abutments 37 are of partspherical form to permit the spindle 30 to assume an inclination relative to the frame 16. Deflection of the links 25 is limited by lugs 27 and projections 29. The mounting is described as applied to a forklift truck of the type in which a steerable driving wheel is mounted at one corner of the rear end of the truck, and the caster wheels 15 are mounted at the rear end of the truck on the opposite side.
Patent GB-315777-A (GB)
Title: Improvements in or connected with means for containing and administering inhaling and other vapours
IPC: A61K9/00
Filed: 1928-04-16
Abstract: 315,777. Hampshire, F. W., and Hampshire & Co. (1927), Ltd., F. W. April 16, 1928. Linings and internal fittings.-A receptacle A, of circular or oval section, for volatile inhalants or smelling salts is provided with a diaphragm A<2> of plaster of Paris or like porous material through which the liquid diffuses. The diaphragm A<2> is supported upon a flange A<3> within the container and may be formed by pouring pasty plaster of Paris upon a cardboard disc supported on the flange after the insertion of the liquid. Alternatively the receptacle may be provided with a porous lining formed integrally with the diaphragm, the liquid being introduced into the space so formed either before completion of the diaphragm or by percolation through the latter. The receptacle is closed, when not in use, by a screw or friction cap B.
Patent GB-788639-A (GB)
Title: Siphoning apparatus
IPC: H01J9/22
Filed: 1956-04-12
Abstract: 788,639. Luminescent screens. SYLVANIA ELECTRIC PRODUCTS, Inc. April 12, 1956 [April 15, 1955], No. 11210/56. Class 39(1). The phosphor settling fluid is removed from a C.R.T. by a siphoning conduit the movement of which into and out of the tube is controlled by aligning means. The tubes 85 containing the settling fluid are carried on a conveyer belt 13 and individually engage a forked aligning device 81 and a sensing or limit switch 89, the latter initiating operation of the siphoning machine. The latter comprises solenoid valve chambers 17, connected to an air pressure system and controlling a rotary vane cylinder 18 from which is suspended a shaft system 23 comprising a flexible coupling 27, an aligning shaft 25, an oversize guide arm 33 and a support column 37. The latter carries an air cylinder 39, operated by one of the solenoid valves, and a shaft 49 upon which moves slidably a brace 55 supporting the siphon tube 63. The brace also supports a hook 73, counterweights 61 and an interlock plate 59 which co-operates with an interlock switch 69 on the upper part of shaft 49. A cord 75 passes from hook 73 over a fixed pulley 79 and a pulley 77 on the end of the piston of cylinder 39 to another hook 71 mounted on the bracket 43 supporting cylinder 39. Operation of the sensing switch 89 operates the valve 19 and releases the piston of cylinder 39, which moves up under the action of the counterweights 61 and allows the conduit 63 to move down into the located neck 83 of the C.R.T. Flexible coupling 27 and the .oversize guide aperture 33 provides for any lack of precise alignment. After a predetermined time, the control unit operates valve 17 and rotates the cylinder 18 and the assembly 23 through 150 degrees, so that the fork 81 is now positioned to allow forward travel of the tube. When sufficient liquid has been extracted, valve 19 is actuated, moving the piston of cylinder 39 downwards and raising the conduit, the plate 59 engaging switch 69 and operating the conveyer to move the tube to a new position. As the tube passes beyond switch 89, the control unit again actuates valve 17 and rotates assembly 23 and the fork 81 back to their original positions in readiness for the next tube on the conveyer.
Patent GB-200918-A (GB)
Title: Improvements in or relating to electrical machinery, applicable more especially to squirrel-cage rotors
IPC: H02K17/16
Filed: 1922-04-21
Abstract: 200,918. Jones, J. April 21, 1922. Coils and conductors. - The ends of the bars a of a squirrel-cage rotor or the like are electrically connected solely by brazing or hard-soldering to a ring c which fits the space within the said ends and is simply in surface contact therewith. Silver or a silver alloy are mentioned as soldering materials. The gaps between the ends of the bars may be filled by metal blocks which are brazed or sweated in position.
Patent GB-728750-A (GB)
Title: Improvements in and relating to monoethers of araliphatic glycols
Filed: 1952-05-05
Abstract: Monoethers of a  : a -bis-(4-chlorophenyl)-ethylene glycol, of the general formula <FORM:0728750/IV (b)/1> (wherein R represents an alkyl radical of up to 6 carbon atoms or an alkenyl radical of up to 3 carbon atoms) are manufactured by reacting a  : a  - bis - (4 - chlorophenyl) - ethylene glycol, a b -monoalkali metal compound or b -halohydrin thereof, or a  : a -bis-(4-chlorophenyl)-ethylene oxide, with the appropriate low molecular aliphatic alcohol or the corresponding alkyl or alkenyl halide, or, when a halohydrin of the glycol is used, with the corresponding alkali metal alcoholate.  In an example, a  : a -bis-(4-chlorophenyl)-b -methoxyethanol is prepared from a  : a  - bis - (4 - chlorophenyl) - ethylene glycol and methyl iodide in toluene in the presence of sodium hydride, or from a  : a -bis-(4-chlorophenyl) - b  - chloroethanol and sodium methoxide in methanol.  The n- and iso-propyl, n-butyl, n-hexyl and allyl ethers may be similarly prepared.  a  : a  - bis - (4 - Chlorophenyl) - ethylene glycol-is obtainable by oxidizing a  : a -bis-(4-chlorophenyl)-ethylene (e.g. with potassium permanganate or hydrogen peroxide), or by reacting glycollic acid esters with at least three molecular proportions of 4-chlorophenyl magnesium bromide, or by reduction of 4 : 41-dichlorobenzilic acid esters (e.g. with lithium aluminium hydride).  a  : a  - bis - (4 - Chlorophenyl) - ethylene glycol b -halohydrins are obtainable by adding hypochlorous, hypobromous or hypoiodous acid to the ethylenic linkage of a  : a -bis-(4-chlorophenyl)-ethylene, or, in the case of the chlorhydrin, by reacting o -4-dichloracetophenone or ethyl chloroacetate with, respectively, one or two molecular proportions of a metal organic 4-chlorophenyl compound, e.g. 4-chlorophenyl magnesium bromide.
Patent GB-164926-A (GB)
Title: Improvements in folding seats for motor and other vehicles
IPC: B60N2/30
Filed: 1920-04-23
Abstract: 164,926. Cheston, A. S. April 23, 1920. Folding seats.-In folding seats of the type having a seat proper supported at each side by jointed-together members, one hinged to the rear of the seat while the other is pivoted to the side through the: medium of a link, one of the jointedtogether members at each side of the seat is constructed in two parts, pivoted together. Fig. 1 shows such a folding seat, the parts 13, 8 being pivoted together at 12, while the back 15 carries lugs 16, slotted at 17 to engage the pin 9. In the modification shown in Fig. 4, a lug 19 is provided on the seat member 1, to engage a stepped part 20 on the back 15.
Patent GB-170608-A (GB)
Title: Improvements in or relating to the manufacture of artificial silk
IPC: D01F11/02
Filed: 1920-04-23
Abstract: 170,608. Bronnert, E. April 23, 1920. Air, controlling circulation of. - Cellulose hydrate threads are dried by treatment with a strong current of air or other neutral gas of a minimum velocity of 3 metres per second and at a temperature of 100-140‹ C. The threads, preferably wound on rollers, may be contained in a single chamber, or they may be packed in a series of chambers through which the air is passed in succession and between which the air is re-heated and thoroughly mixed. Thus, the drying-passage may be subdivided by transverse vertical partitions c1, c2, c3, Fig. 1, into alternate drying- chambers a1, a2, a3 and heating-chambers b1, b2, b3; or the chambers may be formed by perforated horizontal partitions c1, c2, c3 and solid walls d1, d2, d3. As shown in Fig. 2, the spaces between the latter constituting the heating-chambers; or the heating-chambers b1, b2, b3 and may be arranged at the upper part of the drying-passage, as shown in Fig. 3; or both at the upper and lower parts of this passage. The perforated walls are of lattice work or of perforated plates, and effect a thorough mixing of the air.
Patent GB-1508683-A (GB)
Title: Process for preparation of a dispersion of a solid phase of elemental selenium in an electrically insulating binder
IPC: G03G5/07
Filed: 1975-03-19
Abstract: 1508683 Organo - selenium compounds XEROX CORP 19 March 1975 [26 March 1974] 11399/75 Heading C2C [Also in Division G2] Dibenzyl diselenide is produced by acitvating Mg with indide and refluxing with methanol followed by adding Se to produce bis(methoxy magnesium)diselenide. This is reacted with benzyl chloride and acidified to produce dibenzyl diselenide. Alternatively, it can be produced by reacting Se with sodium borohydride to produce sodium hydrogen selenide followed by reaction with benzyl chloride. 4,4<SP>1</SP> - diseleno - dibutyric acid and alpha alpha<SP>1</SP> - diseleno - di - o - toluic acid are produced by refluxing bis(methoxy magnesium)diselenide with butyrolactone and phthalide respectively. Benzyl seleno benzonte is produced by reacting dibenzyldiselenide with sodium borohydride and the reacting with benzoyl chloride in alkaline solution. Dibenzoyl selenide is prepared by reacting sodium hydrogen selenide or sodium diselenide with benzoyl chloride in alkaline solution. Bis(benzoylseleno)methylene is prepared by reacting poly(methylene oligo selenide) in alkaline solution with sodium borohydride and then adding benzoyl chloride. Selenium bis(acetophenone)dichloride is prepared by adding selenium oxychloride to acetophenone.  Selenobenzamide is prepared by reacting sodium hydrogen selenide with benzonitrile.
Patent GB-507697-A (GB)
Title: Improvements in loud speaking telephone systems
IPC: H04M9/00
Filed: 1938-04-13
Abstract: 507,697. Loud-speaking systems. MAGNETA TELEPHONE. April 13, 1938, Nos. 11413 and 11414. Convention dates, April 13, 1937 and April 7, 1938.[Class 40 (iv)] Howling of a loud-speaking system is prevented by providing independent circuits for the two directions of speech and A.V.C. in the amplifier of at least one of them. The amplifiers may be associated with the loud-speakers or may be at a central point, e.g. a small automatic exchange. Automatic exchange system with only one connecting link. A subscriber such as A2, Fig. 6, initiates a call by operating the right-hand set of springs of a key E. Lamps 26, 27 light at the calling station and lamp 27 at all the other stations. Ground is connected to wire 25 to step the call finder 17 off-normal, and ground is removed from the calling subscribers's terminal in the f bank to cause the finder to stop on his terminals. The subscriber then dials at DA2 to step the final selector switch. The called subscriber answers by operating the lefthand springs of his key E to connect up his microphone and light lamp 26. When the calling party restores his key, both switches go home by self-interruption. The switches are of the back-stroke type and their selfstepping circuits include contacts controlled by the ratchet wheels for ensuring a complete step at each interruption. Sluggish relays 23, 24 keep the amplifiers C1, C2 disconnected during stepping and 23 also controls the final selector homing circuit. Modified system, Fig. 7, with two links. Each subscriber has a separate key and busy lamp for each link. The key contacts, except those controlling the busy lamps, are multipled however and it is thus necessary to have a modified starting arrangement for the callfinder. When A5, for example, throws key E, the finder driving magnet is energized initially over off-normal springs 291 and subsequently over a front contact of 23. When the switch stops, the relapse of 23 puts ground from an off-normal contact 292 onto the calling party's f terminal to mark him busy to the other finder. A relay 28 prevents this ground from affecting the finder shown until the calling party hangs up. The Specification as open to inspection under Sect. 91 comprises also an arrangement, Fig. 5 (Cancelled), in which the normal instruments are associated by means of an anti-sidetone circuit and the receiver is shunted by the input transformer of the loud-speaker amplifier, the first valve of which is subject to automatic volume control by means of a back-biassing circuit 3, 5, 6. This subject-matter does not appear in the Specification as accepted.
Patent GB-539177-A (GB)
Title: Method of and apparatus for increasing the operating speed of movable elements in sound-film apparatus
IPC: G11B7/00
Filed: 1940-07-10
Abstract: 539,177. Optical sound-recording. KLANGFILM GES. July 10, 1940, No. 11471. Convention date, July 10, 1939. [Class 40 (ii)] Relates to "noiseless" masking shutter devices, zero line displacement controlling devices, and like devices used in sound film recording and operated by a current representing the envelope of the sound frequencies. According to the invention, the initial response of such devices is quickened by the addition to the normally operating envelope current of a current impulse such as D, Fig. 3, whereby the response of the device is speeded up as shown by the curve C compared with the normal curve E. Preferably, an opposite impulse F is subsequently also given to damp and flatten out the curve C after its quick rise to the desired level. In the circuit, Fig. 4, the envelope current is produced in the usual way by a rectifier 2. The usual steady control therefrom is applied through network 3 to the grid of the valve 5 operating the noiseless" device between terminals I, II; and the additional impulse is applied to the grid of the valve through a condenser 4. A biassing resistance 6 is inserted in the cathode circuit of the valve and is shunted by a condenser 7 so as to be responsive to the slow control through the network but unaffected by the quick transient pulse through the conductor 4. In a modification, two rectifiers are used, one connected to the valve grid through a filter and the other connected directly through an adjustable resistance. In another modification, the terminals I, II are placed between the anode of the valve and the feed choke 9, and the valve is shunted by resistances. In still another modification, Fig. 7, the terminals I, II are connected between the anode of two valves 13, 15 interconnected with the rectifier 2 as shown, whereby the filter 3 feeds the steady control, the condenser 4 feeds the first impulse D of Fig. 3, and the valve 13 produces the opposite pulse F.
Patent GB-941605-A (GB)
Title: Improvements relating to inflation connectors
Inventor: TROBRIDGE GEOFFREY WILLIAM
IPC: F16K15/20
Filed: 1959-04-04
Abstract: 941,605. Valves. DUNLOP RUBBER CO. Ltd. March 18, 1960 [April 4, 1959], No. 11502/59. Heading F2V. An inflation connector for inflatable articles having two or more separate compartments comprises a main passageway 10 for connection to an inflating device and subsidiary passageways 11 leading to the separate compartments. A valve closure member 15 has a plug portion 17, a head 16 and an intermediate bulbous portion 18. The valve member is movable between a position in which all the passageways 11 are closed to the main passage 10 and to each other and to a position in which all the passageways are open to the passage 10. The valve member is retained in the two positions against accidental movement by the engagement of the bulbous portion 18 with opposite sides of the connector surrounding an aperture 14.
Patent GB-1386532-A (GB)
Title: Vertical deflection circuit for a colour television camera having different raster sizes in its channels
IPC: H04N9/093
Filed: 1973-03-09
Abstract: 1386532 Colour television camera; cathoderay tube circuits; saw-tooth current generators ROBERT BOSCH FERNSEHANLAGEN GmbH 9 March 1973 [11 March 1972] 11588/73 Headings H4F H4T and H3T A vertical deflection circuit for a colour television camera in which the pickup tubes, e.g. for red, green and blue, have different scanning raster sizes in order to equalize the tubes signal currents and thus persistence, comprises an operational amplifier 31 for each pickup tubes vertical deflection coil 33 which are supplied at their positive inputs with sawtooth current from a main sawtooth generator (1-16), their inverting inputs being connected via feedback resistors 32 to the junction between the corresponding deflection coil 33 and a resistor 34 whose other end is connected to a constant potential, e.g. ground, all of these resistors 34 having the same temperature coefficients and ohmic values proportional to the desired raster sizes. The sawtooth generator comprises an operational amplifier 9 connected as an integrating amplifier supplied with vertical sync. pulses at input 1, the sawtooth amplitude being adjustable by resistor 6. The resulting sawtooth voltage is fed via voltage divider 15, 16 to the positive inputs at amplifiers 31 and to the ends of potentiometers 22, the other ends of these potentiometers being supplied with the output of inverting operational amplifier 18 which is supplied with the sawtooth voltage. To correct raster skew (i.e. rotation), antiphase outputs derived from amplifiers 9 and 18 may be fed to the horizontal deflection coils. Sawtooth voltages of adjustable amplitude are derived from potentiometers 22 and 23. The zero or central position of the rasters are adjusted by potentiometers 24 to bring them into registration. The relative sizes of the rasters may be adjusted by potentiometers 23, i.e. the red and blue raster sizes may be adjusted relative to the green raster size. RC networks 27, 28, 29 effect parabolic shaping of the sawtooth voltages from potentiometers 22 to enable raster non-linearities to be corrected. Again the red and blue rasters may be corrected relative to the green raster. In addition individual tangential adjustment of the rasters may be effected by the sawtooth voltages from potentiometers 35 which are integrated twice 36-39 and supplied to the inverting inputs of amplifiers 31. The correction voltages derived from potentiometers 22, 23, 24 and 35 are fed to amplifiers 31 via resistors having greater ohmic value than the feedback resistors 32.
Patent GB-831474-A (GB)
Title: Lightweight firearm
IPC: F41A21/12
Filed: 1957-04-09
Abstract: 831,474. Firearms. SULLIVAN, G. C. April 9, 1957, No. 11592/57. Class 119 A firearm with a bolt mechanism has the receiver made of aluminium alloy and a barrel liner, sleeve or breech nut is made of a material of higher strength than aluminium alloy and is provided with locking lugs co-operating with locking lugs on the bolt for locking the bolt mechanism to the barrel. The bolt mechanism may be made of aluminium alloy with its lugs made of a material of higher strength than aluminium alloy or the bolt mechanism may be made entirely of higher strength material. In one form, Fig. 1, a cartridge chamber liner 20 is made of carbon-nickel steel or carbon-nickel-chromium steel alloy and it extended rearwardly to form locking lugs 21 which co-operate with locking lugs 15 of the bolt mechanism 12. Alternatively the locking lugs 21a, Fig. 7, may be provided on a sleeve 20a surrounding the breech end of the barrel and co-operating with the locking lugs 15a of the bolt mechanism. The barrels 30, Fig. 1, and 30a, Fig. 7, may also be made of aluminium alloy. In another embodiment the locking lugs 21, Fig. 9, may be provided on a breech nut 20b screw-threadedly secured to a liner 20 extending the length of the barrel or in a modification, Fig. 10 (not shown), the breech nut 20b may be secured directly to the barrel 30b. Specification 706,956 is referred to.
Patent GB-294704-A (GB)
Title: Improvements in or relating to internal combustion engines
IPC: F02B31/04
Filed: 1927-05-02
Abstract: 294,704. Ricardo, H. R. May 2, 1927. Addition to 261,435. Cylinders receiving liquid fuel. - A single poppet valve D controls a port in the end wall of the combustion chamber C<1> described in the parent Specification, admitting scavenging or combustion air which receives a gyratory motion before passing the valve D. This is accomplished by guide vanes E<1> on the valve guide, or on the face of the valve itself, or by leading the air tangentially into the inlet passage. The valve has a dome-like head D<3>. The combustion chamber, may have an uncooled liner and though substantially cylindrical, may have sides C<1> converging towards the cylinder and the fuel valves E<2> are arranged between the valve and the sides and spray fuel in a direction parallel to an adjacent side. In a four-stroke-cycle engine one or more overhead exhaust valves are located in an annular part C<2> of the head and the piston is scooped out to clear these valves, its stroke being such that substantially the whole of the charge is compressed into the combustion chamber. As shown the diameter of the valve D is ¥ the diameter of the outer end of the combustion chamber which has a mean diameter which is ¢ the bore of the cylinder; the valve D may be eccentric to the combustion chamber to allow more room for the fuel valves.
Patent GB-1046381-A (GB)
Title: Illumination devices for microscopes
IPC: G02B21/08
Filed: 1965-03-19
Abstract: 1,046,381. Microscopes. CARL-ZEISS-STIFTUNG [trading as CARL ZEISS]. March 19, 1965 [March 21, 1964], No.11704/65. Heading G2J. A microscope illuminator comprises within a housing, a source of light 1, a condenser lens system 2 which together with a further lens system 8 forms an intermediate image of the light source, an adjustable filter 10 adjacent the image for adjusting the intensity of light, a light scattering disc 13 also adjacent the image for equalising the illumination, and a further lens system 9 arranged with its focus at the intermediate image, the lens systems 8, 9, together forming an afocal system. The disc 13 is slidable along the axis of the system by means of a ring 18 whilst grey sky filter 10 is slidable perpendicular thereto by means of screw 11. In a modification, Fig. 2, not shown, a pair of grey sky filters are provided which are slidable in opposite directions and in a further form, Fig. 3, not shown, the light scattering disc has a gradually progressing grain structure and is adjustable perpendicular to the axis of the system.