baber/WOPTO huggingface dataset:
Patent GB-435907-A (GB)
Title: Improvements in and relating to throat plates for sewing machines
IPC: D05B73/12
Filed: 1935-01-29
Abstract: 435,907. Sewing-machines. MAUSERWERKE AKT.-GES., Oberndorf-on-Neckar, Germany. Jan. 29, 1935, Nos. 2924 and 2925. Convention dates, Jan. 29, 1934 and May 24, 1934. Addition to 415,270. [Class 112] The work guide of sewing-machine according to parent Specification comprises a guide tongue 3 which is carried by a resilient shank 2. To enable the guide to be adjusted in accordance with the desired width of trimming, the end of the shank is mounted in a transverse recess 5. The shank is made resilient by reducing its thickness at two points in its length. To clear the trimming knife the tongue 3 is slotted at 4. A pivotally mounted guide stop 17 is adjusted by a screw 28 to give the desired width at which the material is pierced by the needle. The stop is pivoted at 21 and is held in position by a spring 26. A stop 30 fixed to the other side of the throat plate carries a lateral projection 31 for positioning the ridge of the seam.
Patent GB-557163-A (GB)
Title: Improvements in or relating to circuit arrangements for ultra-short waves
IPC: H03F1/28
Filed: 1942-03-06
Abstract: 557,163. Thermionic valve circuits. PHILIPS LAMPS, Ltd. (Naamlooze Vennootschap Philips' Gloeilampenfabrieken). March 6, 1942, No. 2983. [Class 40 (v)] An ultra short wave circuit using an indirectly heated valve with the cathode at a high oscillatory frequency potential is so arranged as to avoid any potential difference at the working frequency between the cathode and heater to avoid hum or noise. The Figure shows a push-pull mixing circuit comprising triode oscillators 2, 3 and diodes 4, 5 with the signal input applied to the anodes and the intermediate frequency being taken from the circuit 14 in the common cathode lead. A resistance capacity network 15 provides suitable operating bias for the diodes. The cathodes 6, 7 are connected to the conductors 10, 101 forming the Lecher wire system resonant at the local oscillation frequency while the heaters 16, 17 are fed through the conductors 10, 21 and 101, 211 respectively. If a direct current potential between the heater and cathode is required three conductors tightly coupled for high frequency may be used. The resonant circuit may consist of superposed strip conductors with mica insulation, two of which may constitute filament supply conductors.
Patent GB-997174-A (GB)
Title: Water-soluble polymers and method of making same
IPC: C02F1/54
Filed: 1963-01-24
Abstract: An aqueous suspension of finely divided clay is flocculated using linear polymer produced by polymerizing a vinyl aromatic sulphonate in an aqueous medium under an oxygen-free atmosphere and optionally at 0-100 DEG  C. and/or in the presence of catalysts, catalyst activators and copolymerizable monomers, the polymerization being in the presence of a basic alkali metal compound in a proportion to provide a pH of at least 11 in the aqueous medium.ALSO:A linear polymer is produced by polymerizing a vinyl aromatic, e.g. styrene, sulphonate in an aqueous medium under an oxygen-free atmosphere and optionally at 0-100 DEG  C. and/or in the presence of catalysts, catalyst activators and copolymerizable monomers, the polymerization being in the presence of a basic alkali metal compound in a proportion to provide a pH of at least 11 in the aqueous medium, 3-25% of monomer may be used with 15-1% of the basic compound respectively.  The monomer may be a vinyl benzene sulphonate produced by reacting b -bromo- (or chloro) -ethyl benzene sulphonate with the basic alkali metal compound in the presence of water, e.g. the alkali metal, e.g. sodium, salt of the b -bromo- (or chloro) -ethyl benzene sulphonic acid is dissolved in water, an alkali metal, e.g. sodium, hydroxide is added to give a pH of at least 11, all the oxygen is removed from the atmosphere above the solution, the dehydrohalogenation is carried out at 40-100 DEG  C. and the polymerization is thereafter carried out at 0-100 DEG  C., using a free radical forming water-soluble catalyst, e.g. potassium persulphate.  At least 45% of the benzene sulphonate may be dehydrohalogenated and polymerized and the polymer may be recovered by precipitation, e.g. in ethanol, or evaporation, as a granulated powder.
Patent GB-324528-A (GB)
Title: Improvements in or relating to reels for motion picture film and like flexible strips
IPC: G03B21/32
Filed: 1929-01-29
Abstract: 324,528. Kodak, Ltd., (Eastman Kodak Co.). Jan. 29, 1929. Winding webs.-To engage automatically the end of a kinematograph or like flexible strip as it is wound on a reel, the effective distance between the reel flanges at points around the hub is reduced to less than the width of the strip by one or more projecting fingers on the inner surface of the flanges. Radial fingers D, D<1> may be formed by tongues embossed from the surface of the flanges B. The tongue may extend down to the hub A, or may terminate clear of the hub, as at D<1>, leaving, a gap to receive the film F. In an alternative construction a star-shaped member is interposed between the hub and the flanges.
Patent GB-177490-A (GB)
Title: A distributing device for compressed air and like fluid motors
IPC: F01B17/02
Filed: 1922-02-02
Abstract: 177,490. Eloy, F. March 21, 1921, [Convention date]. Fluid - actuated, gears ; beat or lift valves; slide valves, piston.-In a motor the main exhaust 12 is controlled by the piston 2 and the supply to the cylinder ends and an auxiliary exhaust therefrom to avoid compression by the tapered ends 4 and piston heads 18 of the distributing- valve 3 respectively. The reduction of pressure in the cylinder ends consequent on opening the main exhaust effects the throw of the valve which is facilitated by the provision of small ducts 19 therein.
Patent GB-1491096-A (GB)
Title: Acrylate-styrene-acrylonitrile composition and method of making the same
IPC: C08L51/00
Filed: 1975-01-24
Abstract: 1491096 Acrylate-styrene/acrylonitrile polymeric compositions STAUFFER CHEMICAL CO 24 Jan 1975 [1 Feb 1974] 3152/75 Heading C3P A thermoplastic composition comprises (a) 10-50% of a crosslinked acrylate elastomer, (b) 5-35% of a crosslinked styrene-acrylonitrile copolymer, and (c) 15-85% of a linear styrene-acrylonitrile copolymer, either polymer (b) surrounds and penetrates polymer (a), or vice-versa. The compositions are prepared by (1) emulsion polymerization of an acrylate in the presence of a cross-linking agent, (2) emulsion copolymerization of styrene and acrylonitrile in the presence of a cross linking agent and the product from step (1), and (3) emulsion or suspension copolymerization of styrene and acrylonitrile in the presence of the product from step (2) but in the absence of a cross linking agent; steps (1) and (2) may be inverted in their order. In the examples polymer (a) is a polybutylacrylate crosslinked with 1,3-butylene glycol diacrylate and (b) is crosslinked with divinylbenzene.
Patent GB-160630-A (GB)
Title: Improvements in side cars for motor cycles
IPC: B62K27/02
Filed: 1920-02-03
Abstract: 160,630. Morton, W. E., and Morton, R. J. Feb. 3, 1920. Frame construction; springs, arrangement of; suspending bodies.-Relates to motor-cycle sidecars in which the vertical axis of the body and the side-car wheel are maintained parallel with the cycle when turning corners. According to the invention, the body C is suspended from trunnions mounted above the centre of gravity of the body in bearings b in the longitudinal frame B, and the body is tilted by a bowed member H which is pivoted to the frame B at h, is connected to the trunnion b<1>, and has a pin-and-slot connection h<1> with the member e<1> of a parallel linkage B<1>, e, e<1>, G connecting the side-car wheel to the cycle. The front end of the body C is suspended on a spring b<2> and its rear end on springs d carried by a bar D rocking on the trunnion b<1>. The stub axle E of the side-car wheel is carried by the member e, and the member G is extended upwards and connected to the cycle, preferably at the saddle pillar. The bowed member H may be - connected directly to the trunnion b<1> or, as shown, to the trunnion d<3> of a rocking bar d' which is connected to the bar D by links d<2>. According to the Provisional Specification, the body is tilted by - V or other shaped block secured to the underside of the body and engaging blocks with inclined sides carried by the member e<1>, the engaging surfaces being provided with anti-friction balls or runners.
Patent GB-453227-A (GB)
Title: Improvements in seats and the like
IPC: A47C27/05
Filed: 1935-02-01
Abstract: 453,227. Spring upholstery. THOMSON, A. N. H., The Crescent, Annandale, near Sydney, Australia. Feb. 1, 1935, No. 3263. Convention date, Feb. 1, 1934. [Class 52 (iv)] A rubber seat squab 11 having open pockets 12 on its underside is supported on upholstery springs 7 there being a porous sheet or diaphragm 9 between the squab and the springs which offers resistance to the expulsion of air from the pockets on compression. Reference has been directed by the Comptroller to Specifications 268,915, [Class 52 (iv)], and 356,891.
Patent GB-111407-A (GB)
Title: Improvements in or relating to Aeroplanes and like Aircraft.
Inventor: CHRISTIANSON CHARLES ALEXANDER
IPC: B64B1/00
Filed: 1917-03-07
Abstract: 111,407. Christianson, C. A. March 7, 1917. Addition to 7686/15. Aerial machines with aerostats; aerostats; parachutes.-Aeroplanes fitted with a balloon such as is described in Specification 7686/15 are provided with a protective cover or canopy spaced from the upper surface of the balloon, and the exhaust gases from the engine are discharged into the space thus formed. Fig. 1 shows a canopy A supported above a balloon B by tubular standards C, D, E bent to conform to the shape of the balloon. The exhaust gases pass through the standards and discharge through pipes M, 0. The balloon described in the Specification referred to acts as a parachute when deflated.
Patent GB-377306-A (GB)
Title: Improvements in dip-stick indicators
IPC: G01F23/04
Filed: 1931-11-03
Abstract: 377,306. Indicating liquid levels. FIELDING, W. R., Manor House, Manor Road, Fleetwood, Lancashire. Nov. 3, 1931, No. 3364. [Class 123 (i).] A dip-stick for indicating the level in petrol tanks, oil sumps of motor vehicles, and the like is provided with a part D of reduced diameter to indicate a predetermined low or " danger" level. The graduations above this level may be formed by progressive steps such as C, or by grooves, notches, beads, bulbs or cups, or the graduated portion may be tapered. The graduations F read downwardly to indicate the amount of liquid to be added to bring the level to a predetermined point.
Patent GB-1010931-A (GB)
Title: Improvements relating to change-speed gearing
IPC: F16H47/08
Filed: 1964-01-27
Abstract: 1,010,931. Change-speed gear. DAIMLERBENZ A.G. Jan. 27, 1964 [Jan. 29, 1963], No. 3439/64. Heading F2D. In a change-speed gear for a motor vehicle wherein a direct-reduced planet train 28 is connected between an input driven shell 25 and the impeller 33 of a torque converter and is located on the output side of the converter, the outer shell 34 of the impeller forms a fluidtight converter casing enclosing the turbine 35 and the planet gear 28 is disposed in a separate casing 25<SP>1</SP> fast with the input shell 25 but sealed at 42, 43 from both the converter and the input shell in order to provide an oil-free space 44 between the shell 25 and converter casing 34. The planet gear casing 25<SP>1</SP> is continually supplied with lubricating oil and is emptied during reduced drive by a scoop tube 45 fast with a sun gear 30 which is held by a one way detent 46 for reduced drive or clutched at 31 to a ring gear 27 fast with the input shell 25 for direct drive. The planet gear carrier 32 is fast with the impeller 33. The turbine 35 drives the final output shaft through a second planet train comprising steepped planets P 2 <SP>1</SP>, P 2 <SP>11</SP> meshing suns S 2 1, S 2 <SP>11</SP> and a ring gear R 2 . The sun S 2 <SP>11</SP> may be clutched at K 2  to the sun S 2 <SP>1</SP> or may be held by a brake B 2  whilst the ring gear R, may be held by a brake B 1 .
Patent GB-760352-A (GB)
Title: Improvements in or relating to attachments for optical objectives
IPC: G02B13/04
Filed: 1954-02-05
Abstract: 760,352. Optical systems. COOK, G. H., and TAYLOR, TAYLOR & HOBSON, - Ltd. Dec. 7; 1954 [Feb. 5, 1954], No. 3448/54. Class 97(1) An attachment for an optical objective, corrected for spherical and chromatic aberrations and coma, comprises two members of which the rear member (nearer the main objective) consists of a doublet and the front member of a doublet and a simple component in part thereof, the conditions in at least one axial plane being such that the rear member is convergent whilst the front member is divergent and has its two components spaced apart by an axial distance less than .1f 1 , where f 1  is the positive value of the equivalent focal length of the front member, each of such components being of meniscus form with its air-exposed surfaces convex to the front, the radius of curvature of the front surface of the simple component being greater than that of the front surface of the doublet and less than 4f 1 , whilst the radius of curvature of the rear surface of the doublet is less than that of the rear surface of the simple component and greater than .15f 1 , the radius of curvature of the rear surface of the simple component bearing to that of the front surface of the doublet a ratio lying between .55 and .85. The attachment A is shown placed before an objective B, the seperation between the components of the attachment being variable to suit different object distances. Alternatively this separation may be fixed and a variable focal length system, or a lens of fixed focal length placed before the attachment to suit objects at different distances. The attachment may have cylindrical surfaces to provide an anamorphotic system for cinematographic taking or projecting. Numerical data are given for one such anamorphotic system Specification 740,642 is referred to.
Patent GB-111779-A (GB)
Title: An Improved Device for Grilling, Toasting, and the like purposes.
Inventor: MANNERS ARCHIBALD
IPC: A47J37/06
Filed: 1917-03-09
Abstract: 111,779. Manners, A. March 9, 1917. Grilling and toasting apparatus. - A hanger for toasting bread, grilling chops, bloaters, and the like is constructed of two strips of metal bent to form hooks B and holes A and brazed or riveted together. From a loop at the bottom is suspended a pronged fork C. The apparatus is suspended in front of a fire on a skewer D inserted between the bars and engaging one or other of the hooks or holes.
Patent GB-569352-A (GB)
Title: Improvements in or relating to electric torches
IPC: F21L4/04
Filed: 1943-03-03
Abstract: 569,352. Battery lamps. BECKER-SIMMONDS MANUFACTURING CO., Ltd., and BECKER, C. A. March 3, 1943, No. 3497. [Class 39 (ii)] An electric torch having a casing of insulating material has the body of the casing divided into two parts 10, 11 that screw together, and a metal ring 13 between the two parts permanently connected by a strip 15 to the lamp socket 18. A spring contact 19 at the base of the battery is connected by a strip 21 with a switch 14 which, in the closed position, makes contact with the ring 13. The casing carries metal bands 25, 26 in contact with the strips 21, 15 respectively that enable the battery to be depolarized without removal from the casing as described in Specification 540,810. If a focussing adjustment is provided by mounting the reflector 30 in a cap 31 having a sliding or screwing connection with the part 11 of the casing, the cap may be locked in its adjusted position by a set-screw 33.
Patent GB-1376503-A (GB)
Title: Model railways points
IPC: A63H19/32
Filed: 1973-01-23
Abstract: 1376503 Toy railway points T G FARISH 23 Jan 1973 [25 Jan 1972] 3504/72 Heading A6S Toy railway points have fixed running rails 1, 2 which both remain live during points switching and electrical switches 14, 16; 15, 17 which connect the points blades 6, 7 electrically when the points are operated to the same voltage as that of the fixed running rails 1 or 2 aligned with the points blade 6 or 7 selected as a running rail. A metal frog 5 is electrically insulated from the adjacent running rails 1, 2 of the two tracks B, A, respectively, but is electrically connected by jumper leads 8, 9 to the points blades 6, 7. A metal strip 13 connects the ends of the blades 6, 7. The contacts 16, 17 are electrically connected to the rails 1, 2. In the position shown, the points blade 7 is positioned to render the track A operative, and the contacts 15, 17 are closed, thus connecting the blades 6, 7 to the rail 2. If the blades 6, 7 are moved to their other position, the contacts 15, 17 are opened and the contacts 14, 16 closed, thus connecting the blades 6, 7 electrically to the rail 1. Jumper connections 3, 4 join the rails 1, 2 of the two tracks A, B electrically. The blades 6, 7 may be shifted either manually or electrically. The rails &c can be mounted on interconnected plastics sleepers.
Patent GB-414695-A (GB)
Title: Improvements in or relating to machines for coating parts of or for boots or shoes or the like
IPC: A43D25/18
Filed: 1933-02-06
Abstract: Adjacent surfaces of boot and shoe parts, such as the surface of an upstanding lip or rib 50 and the adjacent marginal surface 48 of an insole 46, are coated by a roll 14 having a cylindrical peripheral surface 58 and a frustoconical surface 60, being pressed thereagainst by rolls 36 and 64 carried by levers 32 and 66 which are pivoted at 30 and 68 and are acted on by springs 40 and 102.  To facilitate the introduction or removal of a workpiece, the presser rolls 36 and 64 can be simultaneously retracted by depressing a treadle 92, which, by means of a rod 90 connected to a lug 88 on the lever 66, and a push rod 96 connected to a lug 94 on lever 66 and acting on a lug 98 on lever 32, causes the lever 66 to swing clockwise and the lever 32 counterclockwise. An adjustable gauge 112 is provided to guide, and a table 52 to support, the work.  The roll 14 is supplied with coating material by a transfer roll 16 having a frustoconical flange, which contacts with a roll 18 shaped similarly to roll 14 and dipping in a trough of coating material.  The coating-rolls 14, 16, 18 and the presser-roll 36 are driven, being interconnected by gears 24. The normal position of roll 64 can be adjusted <PICT:0414695/III/1> by means of the tongue-and-groove connections 82 and 86. Specification 302,958, [Class 95], is referred to.
Patent GB-948297-A (GB)
Title: Improvements in or relating to preset variable resistors
IPC: H01C10/34
Filed: 1962-01-30
Abstract: 948,297. Variable resistors. W. PREH, and A. PREH, [trading as PREH ELEKTROFEINMECHANISCHE WERKE, JACOB PREH NACHFOLGER]. Jan. 30, 1962 [Feb. 1, 1961], No. 3545/62. Heading H1S. In a preset variable resistor of miniature type, a sliding member comprises two concentric rings 7, 8 joined by a neck 9, one being formed with a projecting contact 7<SP>1</SP> engaging the resistance element 1 and the other engaging a collector ring 5, and the sliding member and collector ring 5 are secured to the base plate 1 by a stud 10 of plastic material which is slotted longitudinally at 13 so that in assembly it can be compressed and passed through the centre of the ring 8 and locked in position by flanges on either side of the neck portion 12. The sliding member is coupled to the stud 10 by inward lugs 8<SP>1</SP> engaging the slot 13, and for adjustment a recess 15 is provided on the upper end of the stud for receiving a screw-driver, the movement being being limited by an enlargement 16 engaging a stop 6. Alternatively, a screw-driver may be introduced in the slot 13, in which ease it is desirable to provide within the slot a flat insert 17 to guide the screw-driver and prevent deformation of the slot. The stud 10 or insert 17 may be coloured to indicate the ohmic value of the resistor.
Patent GB-489675-A (GB)
Title: Improvements relating to catches or fastenings for the rails of drop-side cots or bedsteads
IPC: F16B12/60
Filed: 1937-02-06
Abstract: 489,675. Automatic catches. WALES, Ltd., and ADIE, B. Feb. 6, 1937, No. 3563. [Class 44] A fastening for the sides of drop-side cots comprises a base 7, for attachment to the corner pillar 9 of the cot, having a slotted plate 7b in parallel relationship and a catch 11, pivoted at 10 between the plates 7, 7b formed by two parallel parts joined by a channel-like portion, one of said parts having a hooklike portion adapted normally to lie across the slot 7c. When the side of the cot is raised, a horizontally projecting pin encounters the cam edge 11d and displaces the catch 11 until the pin has entered the slot 7c when it strikes the curved part 11e, thus ensuring the return of the catch to its normal position. To release the drop-side, the catches are rotated by means of the finger-grips 11 f. The invention may be applied to cots in which the sides move vertically, in which case the fastening is applied with its slot disposed vertically. Specification 364,377 is referred to.
Patent GB-678026-A (GB)
Title: Improvements in and relating to fuel-injection pumps for internal combustion engines
IPC: F02M59/26
Filed: 1950-02-13
Abstract: 678,026. Fuel injection pumps. SOC. D' ETUDES DE MACHINES THERMIQUES. Feb. 13, 1950 [Feb. 15, 1949], No. 3654/50. Class 102 (i) A fuel injection pump comprises a cylinder 1 having a chamber 5 provided with a delivery valve 6, a piston 2 which is rotatable for varying the delivery and has a central bore 11 closable at its inner end by an inlet valve 12 which co-operates with a stem 13 projecting from the outer end of the piston and which is engageable by adjustable means 14 which hold the inlet valve open when the piston is at the end of its outstroke so that fuel may pass from an inlet 4 through ports 10 and an annular recess 28 into the pump chamber, the inlet valve being closed by its engagement with the piston at a predetermined adjustable point of the instroke. The piston is actuated by a cam 20 through a tappet 22 and guide member 24 which houses a return spring 27. The stem 13 abuts an inclined member 14 carried by a slidable member 15 which is movable by a pinion 19 to adjust the initial opening of the inlet valve thereby varying the beginning of injection. The plunger is rotatable by a rack 31 for varying the delivery and has a groove 30 co-operating with a byepass port 9. The pinion 19 may be adjusted manually or automatically as a function of the fuel delivery and/or the engine speed.