baber/WOPTO huggingface dataset:
Patent GB-1465809-A (GB)
Title: Internal combustion engine
IPC: F02D33/00
Filed: 1974-06-26
Abstract: 1465809 Pre-combustion chambers TOYOTA JIDOSHA KOGYO KK 26 June 1974 [12 July 1973] 28388/74 Heading F1B An I.C. engine has a main combustion chamber 7 an intake valve 6 having a stem and a head, a main passage 9 for introducing a lean mixture into the main combustion chamber, a valve seat for the valve head, an auxiliary passage 2 for introducing a rich mixture into the main chamber, a passageway 3 formed within a cylinder head which partly defines the main combustion chamber, the passageway communicating with the auxiliary passage, a duct 4 communicating with the passageway and having an outlet end 4a which opens into the main passage, the outlet end being adapted to be sealed by the valve head when the head is seated, an auxiliary combustion chamber 10 having an orifice 12, 13 through which it communicates with the main chamber and disposed so that rich mixture introduced into the main chamber through the outlet 4a of the duct is introduced into the auxiliary chamber during a suction stroke of the engine, a spark plug 11 disposed in the auxiliary chamber for igniting the rich mixture in the auxiliary chamber to generate a flame jet which ignites the lean mixture in the main chamber. While the valve 6 is open, rich mixture from duct 14 is directed into auxiliary chamber 10 through orifice 12 and some which remains in the main chamber is forced through orifices 12 and 13 during the compression stroke. Spark plug 11 ignites the mixture in chamber 10 and jets of flame issuing from orifices 12 and 13 ignite the mixture in the main chamber. In a modification, the outlet end of duct 4 is upstream of the valve seat and the duct is extended by a short tube which terminates in the plane of the back of the valve head when the valve is in the closed position.
Patent GB-519749-A (GB)
Title: Improvements in or relating to ignition compositions in electric blasting detonators
IPC: C07C205/23
Filed: 1938-09-30
Abstract: 519,749. Complex lead nitrophenolates. DU PONT DE NEMOURS & CO., E. I. Sept. 30, 1938, No. 28487. Convention date, Oct. 28, 1937. [Class 2(iii)] [Also in Group. XXI] The ignition composition in an electric blasting detonator consists of or includes a complex or double 'salt of lead nitrate with a lead salt of a nitrophenol. Such salts may be obtained by adding the nitrophenol dissolved in an excess of aqueous alkali slowly to a hot aqueous solution of lead nitrate, the amount of lead nitrate being greater than that which can be converted into alkali nitrate under the conditions of the reaction. After the mixture has cooled to room temperature, the precipitate is washed with water and dried at a temperature insufficient to cause any appreciable decomposition. The lead salts of various nitrophenols, such as the salts of dinitrocresols, dinitrophenols and trinitrophenol may be used and the preferred complex salt employed is lead nitratebis basic lead - 4:6 - dinitro - orthocresylate monohydrate. Examples of the preparation of this salt and also of lead nitrate-bis-basic lead picrate and lead nitrate-bis-basic lead-2:4- dinitrophenolate are described.
Patent GB-338651-A (GB)
Title: Improvements in or relating to screening apparatus and the like
IPC: B07B1/48
Filed: 1929-09-20
Abstract: 338,651. General Electric Co., Ltd., and Edwards, W. S. Sept. 20, 1929. Sieves, forms and construction of.-Means for securing and tensioning the cloth 8 of screens consists of inclined surfaces 5 provided on the screen frame 1, against which the edges of the cloth are secured by clamping members 9 driven into position by wedges 12 or screws acting on fixed abutment flanges 11 on the frame. The face of the member 9 may be pro. vided with dowels or serrations 10.
Patent GB-956257-A (GB)
Title: Improvements in and relating to colour television apparatus
IPC: H04N9/64
Filed: 1961-08-08
Abstract: 956,257. Television. PHILCO CORPORATION. Aug. 8, 1961 [Aug. 10, 1960], No. 28578/61. Drawings to Specification. Heading H4F. In a colour television receiver the effect of noise carried by the chrominance channel on the reproduction of black or near-black portions of the picture is removed by attenuating or suppressing the chrominance signals when the luminance signal crosses a predetermined threshold value in the vicinity of the black level. The effect of such noise, which is manifest as scintillation in the black or near-black portions of the picture, is most marked in receivers employing beam index-type picture tubes since such tubes require that there should always be some beam current during black picture portions to ensure the generation of index signals and in the described embodiment the luminescence signal is clipped at a predetermined level in the region of picture black to provide a control signal which is utilized to reduce or to cut-off the conduction of a valve in the chrominance channel.
Patent GB-1365743-A (GB)
Title: Device for guiding cables on bicycles
IPC: B62M25/02
Filed: 1972-06-19
Abstract: 1365743 Clips R H HURET and J A HURET 19 June 1972 [24 Jan 1972] 28581/72 Heading E2B A device for guiding cables on bicycles comprises a split collar having two oppositely inclined end walls 1, 2 and lugs 3, 4, 5 which are bent over to provide passages for cables. The end portions 12, 13 of the collar have openings for a screw for tightening the collar on tubes 6, 7 of a bicycle frame so that projections having edges 8, 9 engage a crank case 10.
Patent GB-261182-A (GB)
Title: Fan installation for ventilation and other purposes
IPC: F24F7/06
Filed: 1925-11-13
Abstract: 261,182. Stewart, A. W.. and Stewart, F. C., and Buchanan, J. G., (Executors of Stewart, W. M.). Nov. 13, 1925. Casings.-A fan installation for ventilation and other purposes has a stationary outer casing 1 with two angularly displaced connections 7 either of which acts as an inlet while the other acts as an outlet. The fan impeller 18 is contained in the volute casing 3 which is housed in one compartmemt of the casing 1 and is attached to the cylindrical intake member 4. Diametrically opposed lateral openings are made in the member 4 to correspond with the spaces between the walls 10, 11, 12 of the casing. The casing 3 and member 4 can be rotated by means of a handle. With the parts in the position shown in Fig. 1, air enters the upper connection 7 through the upper opening 8 to the fan and is discharged through the lower opening 7. When the parts are rotated until the fan discharge part 14 registers with the upper connection 7, air enters the lower connection and passes through the lower opening 8 to the fan. In the modified form shown in Fig. 7, the connections 7 are disposed at 180‹ to each other, and the intake member 4 has one opening equal to half the circumference. The fan may thus be operated as a suction fan or as a delivery fan.
Patent GB-805212-A (GB)
Title: Twisting spindle balloon control
IPC: D01H13/10
Filed: 1956-09-19
Abstract: 805,212. Balloon control in twisting of spindles. VIBBER, A. W. Sept. 19, 1956 [Oct. 18, 1955], No. 28623/56. Class 120(2) A spindle for processing a strand advancing under tension through a balloon comprises a drive mounted within the balloon which interacts with a portion of the balloon intermediate the ends of the balloon to detect changes in the size of the balloon, mechanism being controlled by the said device for varying the tension of the material in the balloon. In the embodiment of Figs. 1 and 2, yarn 27 from a package 26 carried by a platform 22 weighted at 25, is uptwisted by a flyer 16, the yarn passing in two-for-one fashion past a tensioning ball 40 and contacting a revolvable disc 51 on a shaft 47 biassed by a coil spring 60. The seating 39 of the ball 40 is spring-urged at 46. If the balloon b increases in diameter, the yarn 27 moves away from the disc 51 to permit the spring 60 to rotate the shaft 47 to bring about an increased tensioning effect at 39, 40 and bring the balloon back to the desired diameter. Should the balloon decrease in diameter, the disc 51 will be rotated by the yarn 27 in the direction of movement of the balloon, thereby decreasing the tensioning effect at 39, 40. In a further modification, Fig. 4, not shown, the spindle 47 is arranged to be spring-supported in a hollow sleeve which is biased by the spring 60. The disc 51, thus rises and 'falls with increasing or decreasing balloon size and effects a lesser or greater torque upon the sleeve to permit the tensioning effect at 39, 40 to increase or decrease and so effect the regulation of the balloon size. In Fig. 5, a down-twisted yarn 74 is wound upon a bobbin 73 the yarn being fed thereto by a capstan 76 comprising a shaft 91 driven by the shaft 79 through a clutch 90 governed by a spring-biased disc 82 contacting the balloon B. If the balloon contracts in size, the disc 82 turns with the balloon to move the lever 89 to loosen the clutch 90 whereby the capstan stops on its shaft and lessens the rate of feed of the yarn. If the balloon increases in size, the spring 85 effects the tightening of the clutch 90 and an increase in the rate of feeding of the yarn 74. In Fig. 6, yarn 166 positively fed at 164 is ballooned at 167 about a yarn 172 taken from a package 170. The plied yarn 184 is taken up at 186. Yarn 172 on its way to the plying point P passes an idle capstan braked by a shoe 175. If the balloon 167 expands, the strand 166 will be at a tension lighter than required as it approaches the point P; accordingly the coil-spring 182 rotates to move the shaft 181 and the sleeve 179 to impose a greater braking force at 174 to bring the two yarns to substantially equal tension again. If, however, the balloon 167 contracts, it moves the disc 180 to lessen the braking force at 174 and bring the yarn again to substantially equal tension. U.S.A. Specification 2.736,160 is referred to.
Patent GB-968301-A (GB)
Title: Solid fuel space heating stove and a back boiler therefor
Inventor: PROTHERO DAVID RHYS
IPC: F24C13/00
Filed: 1962-07-26
Abstract: 968,301. Solid fuel stoves; hot-water boilers. RADIATION Ltd. May 16, 1963 [July 26, 1962], No. 28720/62. Headings F4A and F4W. In a back boiler having a controllable flue passage therethrough spaced from the front and rear walls thereof and adapted to form a structural part of a solid fuel space heating stove, the boiler is disposed so that its front surface is exposed to convection and radiant heat from the fuel in the grate of the stove. The said flue is controlled by a damper which may be adjusted in unison with a damper controlling the flue outlet from the grate. In the form shown, the back boiler has front, rear and side walls a, b, c, respectively, water pipe connections k in the wall c and a vertical flue passage d passing through the centre of the boiler with the horizontal mouth x of the flue above the grate. A damper 2 in the outlet from the flue passage controls the gas flow therethrough to the main flue g. Another passage way from the fire-box h to the flue g has a variable throat i which is controlled by a hinged regulator flap j. The damper 2 is connected by lugs t to a U-shaped cranked rod having two anglebrackets n attached which move the flap j. The rod is connected by a slotted member m<SP>1</SP> to a link p, pivoted in a vertical bearing q, having a flattened projection r at the upper end which engages a slot in a manually operated rod s which thereby adjusts the positions of the damper and flap in unison. The flanged ends of the removable throat plate u to which the flap j is hinged rest upon side ribs v on side casings of the stove body. The rear of the grate y which is of the reciprocating shaker type is solid and the cast bridge member z which prevents ash and clinker from jamming the grate is removable.
Patent GB-533611-A (GB)
Title: Improvements in or relating to vehicle windscreens and the like
IPC: E05C17/34
Filed: 1939-10-26
Abstract: 533,611. Stays for hinged articles. PERFECTA MOTOR EQUIPMENTS, Ltd., and BOSTOCK, C. W. Oct. 26, 1939, No. 28753. [Class 65 (i)] A stay for a windscreen &c. a comprises two lever d, g pivoted together at f and pivoted at their other ends to the windscreen and the fixed frame c respectively. A third lever l is pivoted at k<1> to d and has a slot m in which slides a stud n on g. A wing nut p on the stud locks l in the adjusted position.
Patent GB-1175354-A (GB)
Title: Improvements in or relating to Electro-Magnets.
Inventor: COLES BARRY ARCLAY
IPC: G01R33/381
Filed: 1966-06-27
Abstract: 1,175,354. Electromagnet. B. A. COLES. 20 June, 1967 [27 June, 1966], No. 28782/66. Heading H1P. A homogeneous magnetic field is generated in the volume 12 by at least one electromagnetic winding, but preferably two, 10 and 11, having an air or other non-magnetic core and a pair of identical ferromagnetic flat plates 13 and 14 having high magnetic permeability and disposed perpendicular to the axis, x, of the windings. The plates are preferably of Fe/Ni alloy containing Cu and Mn and may be constituted by a single thickness or several layers with layers of air or non-magnetic material between adjacent layers. In a multi-layered plate the layers nearer the windings have lower permeability and higher saturation than those nearer the volume 12, but all plates have the same shape, size and thickness, e.g. circular or rectangular. Iron-clad solenoids or iron-screened coil systems may be used for the windings in which case the iron provides a low reluctance return path for the flux.
Patent GB-188319-A (GB)
Title: Improvements in well drilling attachments
IPC: E21B19/00
Filed: 1922-10-23
Abstract: 188,319. Rowland, H. R. Nov. 4, 1921, [Convention date]. Wells; bore-hole apparatus.-In a well-drilling attachment wherein a shell is mounted on the lining and carries adjustable means for gripping the casing to permit sections to be added to or removed from the latter, the gripping members are moved radially by means of a rotatable ring or the like. The shell 16 has internal shelves 21, 22, the upper shelf supporting a two-part ring 25 adapted to be rotated by means of a worm 30. Sector-shaped holder members 35 rest on the ring 25 and lower shelf 21, have lugs engaging recesses in the upper shelf to prevent lateral movement and are held against upward movement by means 52 engaging the lower surface of the lower shelf; the inner inclined surface of each member 35 has a vertical dovetail slot slidably receiving a dovetail projection on a gripping member 42, upward movement of the member 42 being limited by a plate 50. The. gripping members are held against falling from the members 35 bv tapering the dove-tails downwardly or by extensions, on the means 52. Each member 35 has a pin 36 engaging an inclined slot in the ring 25, rotation of ring thereby causing inward or outward movement of the members 35 to cause the members 42 to grip or release the casing 54. The members 42 may be locked bv pivoted pawls 39 carried by the members 35 and operated by screws 46 passing through the shell 16. The lower part of the shell 16 has openings 56, normally closed but adapted to receive a pipe for pumping from, or injecting concrete &c. to. the space between the lining 15 and casing 54. In a modification, a valve is provided at the head of the shell 16.
Patent GB-305070-A (GB)
Title: Improvements in or relating to matrix setting and type-line casting machines
IPC: B41B11/18
Filed: 1927-10-29
Abstract: 305,070. Wade, H., (Standard Compositor Akt.-Ges.). Oct. 29, 1927. No Patent granted (Sealing fee not paid). Assembling matrices.-Relates to means for preventing rebounding of the matrices as they enter the assembler. The matrices, passing from the assembler-belt 1 over a, slideway 4, are guided to the star-wheel 6 by a resilient guiding tongue 5, pivoted at its upper end on a pin 7, and pressed by a spring 8. The lower end of the tongue 5 has secured to it a forked and vertically adjustable spring 10, the limbs of which bear on the lateral ribs of the matrices, and exert a braking effect proportional to their thickness. The lower end of the tongue 5 has an extension 15, which engages the faces of the matrices between the ribs. The movement of the tongue 5 is limited by a pin 18 engaging in an aperture 16 in the plate 17.
Patent GB-1316972-A (GB)
Title: Lock unit
IPC: E05B9/08
Filed: 1970-06-15
Abstract: 1316972 Locks MINNESOTA MINING & MFG CO 15 June 1970 [16 June 1969] 28945/ 70 Heading E2A  A lock unit for use in a building structure 10 comprises a cylinder lock mechanism 15 adapted to be mounted in an opening in a building structure on two mounting plates 35, 40, a first 35 to be fixed relative to the structure and a second deformable plate 40 connected to the mechanism via a member 50 passing through the first plate whereby movement of the cylinder lock mechanism relative to the first plate deforms the second plate. As shown the second plate has spacers 44, 45, 46 thereon to maintain the plates in spaced substantially parallel relationship when the unit is mounted in the building structure, the spacers being on a surface of the second plate to allow deformation thereof in a predetermined manner in response to movement of the cylinder lock mechanism. The spacers 45, 46 are parallel to each other and both being at right angles to the spacer 44; there are two openings for two members 50 which are in the form of mounting screws in the second plate 40, the two openings being in the portion of the plate between corresponding ends of the spacers 45, 46 and the spacer 44, thus when the forces applied to the screws to cause the second plate to become deformed the plate tilts on the tips 52 of the spacers 45 and 46 causing the portion to move away from the plate 35 and this engages a pivoted housing 20 and tilts it so causing the housing which is engaged with a switch to move a part 27 to abut a part 30 so that signal generating means is energised to give an alarm. The housing 20 supports a slidable bolt in such a way that any pressure on the door pivots the bolt to operate the switch. The force applied to the screws is caused if an attempt is made to prise the cylinder lock mechanism from the door. In a modification the plate 35 has a dished portion which engages in the bore 16 containing the cylinder lock mechanism to locate the plates relative to the bore.
Patent GB-188519-A (GB)
Title: Improvements in or relating to pulleys
IPC: F16H55/40
Filed: 1921-11-01
Abstract: 188,519. Womersley, H. Nov. 1, 1921. Pulleys.-In built-up pulleys with wroughtiron or steel rims attached to the spokes by electrical or other welding, the circular or other spokes B engage dove - tailed openings A<1> in the rim A and may be enlarged at B<2> to engage the inside of the rim.
Patent GB-491409-A (GB)
Title: Improvements in and relating to flat knitting frames
IPC: D04B11/06
Filed: 1937-10-25
Abstract: 491,409. Knitting. DIETRICH, G. Oct. 25, 1937, Nos. 29100 and 29101. Convention dates, Nov. 3, 1936 and Feb. 22, 1937. [Class 74 (ii)] To knit, on a flat frame, stocking blanks having four narrowing lines at the toe by means of two sets of narrowing points 3, the loops in the inner zones 1 are transferred inwardly at each transfer course and then the points 3 are racked outwardly to enable the loops in the outer zones 2 to be transferred. The transfer of loops in the zones 2 may be performed in two or more stages, the formation of additional narrowing lines being, however, avoided. Each set of points 3 is mounted on a bar 10 controlled by a stop 9 when making the zones 2 and by a pivoted auxiliary stop 7 when making the zones 1. The stop 7 is interposed between the stop 9 and the end of the bar 10 by a pattern mechanism the bar being temporarily held away by a cam and lever device 11 ... 18 acting against a weight.
Patent GB-986138-A (GB)
Title: A microphone arrangement
IPC: H04R1/26
Filed: 1961-08-11
Abstract: 986,138. Microphones. AKUSTISCHE UND KINO-GERATE G.m.b.H. Aug. 11, 1961 [Aug. 12, 1960], No. 29169/61. Heading H4J. Two unidirectional microphones having identical response patterns but responsive to different frequency ranges are carried by a common support, are arranged to have substantially the same direction of maximum sensitivity, and are connected to electric circuitry to produce a common output. Each unidirectional response pattern is obtained by acoustic delay means coupled to the respective microphone diaphragm. One of the microphones has a greater frequency response than the other in a baso range and a smaller frequency response than the other in a treble range and both microphones have the same frequency response at an intermediate frequency. The microphones are spaced apart so that the distance between their acoustically effective parts is less than one half of the wavelength of sound in air at the intermediate frequency. The microphones are preferably connected together in series to an amplifier. The connectors may be made through filters. The microphones are of the moving coil type. The high-frequency microphone has a diaphragm 6 (Fig. 2) and a rear wall 12 which together define a shallow air chamber 5. The rear wall 12 carries three acoustic resistance elements 7, 8, 9, elements 7, 9 leading to the outside air while element 8 leads to a chamber 10 defined by a pot-shaped member 11. The low-frequency microphone is similar, but instead of having acoustic resistance elements 7, 9 has tubes 19 (Fig. 3) which at one end open into the shallow air chamber 13 and at the other end are open to the outside air. The lowfrequency microphone may be coupled to an additional tube (not shown) to increase the highfrequency response. The intermediate frequency is between 300 and 1000 c/s.