baber/WOPTO huggingface dataset:
Patent GB-657347-A (GB)
Title: Improvements in thermostatic snap action switches
Inventor: WILSON WILLIAM HARRY
IPC: H01H37/66
Filed: 1949-01-24
Abstract: 657,347. Thermal switches; switches partly magnetic. RHEOSTATIC CO., Ltd. Jan. 24, 1949, No. 1899. [Class 38(v)] [Also in Group XI] A magnetic snapaction switch for the heating element of the warming cupboard of an electric cooker, normally functions as a simple manual " on-off " switch when only the cupboard is in use, but operates thermostatically when the cupboard and the switch receive heat from the oven of the cooker. The switch comprises a spring blade 2 carrying a contact 3 and a permanent magnet 4, a second spring blade 5 carrying a contact 16 and a twin armature unit 6, 15, and a bimetallic strip 7 which engages a screw 8 screwed into the end of the blade 5. The magnet 4 is always nearer to the armature 15 than to the armature 6 so that the resulting magnetic bias tends to keep the contacts 3, 16 closed and provides a snap-action as described in Specification 625,492. When the switch is in its normal operative position as shown, the contacts 3, 16 are closed to energize a heating coil 11 and the heating element of the cupboard (not shown), the heat from the coil 11 being insufficient for the bimetal 7 to open the contacts. If the oven is also in use, the heat received from the oven in addition to that from the coil 11 is sufficient to cause the bimetal 7 to move the blade 5 to open the contacts 3, 16 with a snap-action. The coil 11 is deenergized and on the cooling of the bimetal, the magnet 4 recloses the contacts, the cycle being repeated at a rate dependent on the amount of heat received from the oven. The switch is manually operated to the off position by raising a dolly 13 which moves a push rod 14 into engagement with the blade 5 to open the contacts.
Patent GB-237172-A (GB)
Title: Improvements in and relating to opening devices for tins and like containers
IPC: B65D43/26
Filed: 1925-01-21
Abstract: 237,172. Lee, J., and Pearson, C. Jan. 21, 1925. Frictionally-seated lids. -The flange 3<x> of the lid of a tin or like airtight container has an internally-threaded socket 4 with which is engaged a threaded stem 5 formed with a handle 6. To open the container the stem is screwed down against the annular lip 2 of the body, so raising the lid. The pitch of screw-thread employed is steep, preferably one of 27‹, so'that on replacing the lid the stem is automatically turned and raised in the socket to its normal position.
Patent GB-227287-A (GB)
Title: Improvements in or relating to hoods for use on vehicles
IPC: B60J7/12
Filed: 1924-01-24
Abstract: 227,287. Daimler Co., Ltd., and Bush, A. E. Jan. 24,1924. Hoods.-In a hood framework of the kind in which the side members are adapted to fold about vetrical axis as described in Specification 214,843, flexible stirrups E are secured across the bricks in the members to prevent the hood material from being pinched in such breaks or joints and also to serve as handles for assisting in collapsing the hood. The stirrups may be of leather or of spring metal in which latter case the stirrups assist in keeping the framework extended or collapsed.
Patent GB-245943-A (GB)
Title: Improvements in shuttles for looms
IPC: D03J5/24
Filed: 1925-01-22
Abstract: 245,943. Haughton, J. E. Jan. 22, 1925. Shuttles.-A threading device for a loom shuttle C comprises two fittings A, B, the latter of which acts to guide the weft to the eye c and is positioned by pins c<1>, c<3> and a lug b<5> which enters a slot opening into the eye c. The point b<4> of the fitting B enters a slot a<3>, a<4> in the top a<1> of the fitting A. A downwardly-extending lug a<8> has a key-hole slot a<9>, and is slightly spaced from an upstanding flange a<6> having a curved top. The thread is led under the top plate a<1>, round the nose b<4>, and is then pulled down so as to pass over a lateral pin c' and the flange a<6>, through the slot a<9>, round the pin c<3> to the eye c.
Patent GB-362742-A (GB)
Title: Stopping device for cinematographic apparatus
IPC: G03B21/50
Filed: 1931-01-21
Abstract: 362,742. Kinematograph apparatus. PATH• CINEMA, ANCIENS ETABLISSEMENTS PATH• FR’RES, 30, Boulevard des Italiens, Paris. Jan. 21,1931, No. 2017. Convention date, Jan. 23, 1930. [Class 97 (i).] In apparatus in which the intermittent-feed mechanism is rendered inoperative when a finger bearing on the edge of the film enters a notch therein, a pivoted arm is normally held by the finger, and when released by the finger is moved by a rotating cam to render the mechanism inoperative ; means for manually controlling the arm, and a shutter for cutting off the heat of the beam while the mechanism is inoperative, may be provided. As shown, the film is fed by claws 6 carried by a frame 5 moved vertically by a cam 12 and horizontally by a cam 11 engaging a lever 1 turning on a fixed pivot 2, the lever and frame being pivotally connected at 4. A tension spring maintains engagement between the cam 11 and a roller 10 carried by the lever 1, and the cams are geared together by wheels having diameters such that the cam 12 makes two or more revolutions for each revolution of the cam 11. The film edge is engaged by a pin 25 on a finger 23 pivoted at 24 and pressed towards the film by a spring 26. The finger 23 in conjunction with a rotary cam 33 and a tension spring 22 normally holds a pivoted arm 19 in a position such that its end 21 does not engage the lever 1, but when the pin 25 enters a film notch the arm 19 is released and is caused by the cam to turn about a stub shaft 20 and assume the position shown in Fig. 3, thus engaging the lever 1 and preventing effective operation of the feed claws. The cam 33 has a notch 34 normally engaging a boss 35 on the arm 19, and is geared by wheels 32, 31 to a shaft 30 frictionally coupled to a worm wheel 28 driven by a worm 27 on the shaft of a gear wheel 18 driven through engagement with a wheel 17 on the shaft of the cam 11. The relative effects of the friction coupling and of the spring 22 are such that, when the arm 19 is held by the lever 23, the clutch slips, and, when the arm 19 is freed, the clutch drives the shaft 30. A shutter 37 of gauze &c. having an opening 40 normally in register with the film aperture is rotated by the shaft 30 through gearing 38, 39 so as to cut off the heat while the film is stationary. The cam 33 and shutter 37 rotate at the same speed, and when one rotation has been completed the spring 22 causes the boss 35 to re-enter the notch 34 so that the arm 19 frees the lever 1. The stub shaft 20 may be carried by a plunger 43 movable downwards by hand against a spring 44, so that the film feed may be rendered inoperative at the will of the operator ; means to hold the plunger in depressed position may be provided.
Patent GB-981385-A (GB)
Title: Improvements in or relating to insulated electric conductors and coils wound therefrom
Inventor: WRIGHT PETER GORDON
IPC: H01F27/32
Filed: 1963-01-16
Abstract: 981,385. Insulated electric conductors. BRITISH INSULATED CALLENDER'S CABLES Ltd. Jan. 16, 1964 [Jan. 16, 1963], No. 2059/63. Heading H1A. A conductor consists of a ribbon of metal foil 1 with two or more layers of porous insulating tissue 2 and 3 on one or both surfaces. The layers are stuck to one another and to the foil surface along mutually spaced lines of adhesive 4 and 5, which are positioned between the layers so that no two lines coincide. The ribbon may be wound in a roll for use as a transformer winding or other electromagnetic coil which is subsequently impregnated with insulating oil. With the lines of adhesive positioned as described, the oil has an uninterrupted path throughout the coil as indicated by the dotted line. The lines of adhesion may run transversely of the ribbon and also can be built up of a series of short lengths of adhesive.
Patent GB-1028552-A (GB)
Title: Improvements in or relating to bearings
Inventor: RAFIQUE SYED OMAR ZIKRIA MUBAR
IPC: F16C17/12
Filed: 1964-01-16
Abstract: 1,028,552. Bearings. GLACIER METAL CO. Ltd. March 30, 1965 [Jan. 16, 1964], No. 2083/64. Heading F2A. A plain bearing has its inner surface provided with a number of axially-extending steps having a radial depth of 0À002 inch. Each step extends circumferentially and decreases progressively in depth to the next step. The steps may be formed in the actual inner surface of the bearing or may be thin circumferentially extending leaves 3. Fig. 1 (not shown), each of which has one end bearing against but not attached to, a bushing 2 and the other end brazed at 5 to a spacer 4, the latter being brazed at 6 to the bushing 2. A hollow shaft 7, mounted in the bushing 2, rotates in the direction indicated by the arrow 7A. Apertures 13 in the leaves 3 permit escape of oil from the wedge-shaped depressions 10 to wedge-shaped chambers 11 so as to form a counterbalance of pressurized oil. In modifications, each of the leaves 3 has an end brazed at 8, Fig. 2 (not shown), to the bushing 2 and has the other end brazed at 5 to a spacer 4, the latter bearing against, but not attached to, the bushing 2; each of the leaves 3 has an end brazed at 8 to the bushing 2 and has the other end bearing against, but not attached to, the spacer 4, the latter being attached to the bushing 2; and each of the leaves 3 has an end brazed at 8 to the bushing 2 and has the other end attached to the spacer 4, the latter being attached to the bushing 2.
Patent GB-625173-A (GB)
Title: Improvements in or relating to alkylated thiophene compounds and production thereof
Filed: 1947-01-23
Abstract: Alkylated thiophene compounds are produced by reacting a compound containing a thiophene nucleus with at least one reactive hydrogen atom therein with an alkylating agent having at least three carbon atoms, in the liquid phase at -10 DEG  to 100 DEG  C. and a pressure between atmospheric and the vapour pressure of the reactants at the temperature employed, in the presence of sulphuric acid of a weight per cent concentration not greater than 80.  Unsubstituted and substituted thiophene and polynuclear or condensed thiophene compounds may be treated with olefins, diolefins, alcohols, ethers, and esters such as C3-C5 olefins, olefin polymers, fractions of cracked gasolines or naphthas, butadiene, isopropyl and tert.- or sec.-butyl alcohols, cyclohexanol, isopropyl ether, alkyl halides, sulphates or phosphates.  Initial alkylation is effected in the 2 or 5 position unless blocked by negative substituents.  Sulphuric acid of at least 50 and, preferably, 70-80 per cent is used, the diluent being water or, for example, alkyl sulphate or acetic acid.  Spent acid from isoparaffin alkylation may be used after dilution.  In examples, thiophene is treated with propylene, isobutylene, butadiene, trimethylethylene, and methallyl chloride at temperatures from 20-68 DEG  C. giving isopropyl, mono- and di-tert.-butyl, butenyl, tert.-amyl and chlorbutyl thiophenes respectively: chlorthiophene with isobutylene giving tert.-butyl chlorthiophene; and isopropyl thiophene with propylene giving the di- and tri-alkylates.
Patent GB-825387-A (GB)
Title: A manure spreader or fertiliser distributor for agricultural vehicle
IPC: A01C3/06
Filed: 1958-01-22
Abstract: 825,387. Manure distributers. FREUDENDAHL, J. A. Jan. 22, 1958 [June 19, 1957], No. 2179/58. Class 6(1). A manure distributer comprises a rotating spreading device including teeth mounted on a transverse shaft 2 the teeth being of V-shaped cross-section, one web 6 of each tooth extending forwardly in the direction of rotation of the shaft and the other web 7 extending in the longitudinal direction of the shaft and being provided with a portion 10 which is bent back rearwardly along a diagonal. The teeth are arranged in two helical rows commencing at the centre of the shaft and extending in opposite directions.
Patent GB-1528231-A (GB)
Title: Information processing systems
IPC: G06F15/02
Filed: 1976-01-20
Abstract: 1528231 Initializing HITACHI Ltd 20 Jan 1976 [31 Jan 1975] 02215/76 Heading G4A A programmable logical array 3 (Fig. 1) includes a routine for setting to their initial values memories (e.g. registers 4, 5) in a data processing system, at switch-on of power a signal Q11 applied to a gate 7 forcing address register 2 to the address of one of the instructions in the routine. As described (for a desk top calculator), at switch-on a MISFET M2 in a bi-stable 1 is turned on to produce the signal Q11 which is connected via OR gates 7 to set to their "1" state stages F4-F128 of the address register so that one of the addresses 252-255 is designated in MISFET read-only memory 3. Accessing at address 252 results in a control signal R1 which cuts off the feedback loop of shift register 5 and so zeroizes it. In a similar manner control signals M 0 , R 2  and Á 1  are derived by accessing addresses 253-255 to re-set a flip-flop 6, set the lowest digit of display register 4 to zero with zero suppression signals applied to the other digits and clear a third register (not shown) respectively. The programme steps stored at the addresses 252-255 are repetitively carried out until subsequent operation of a key K1-KM re-sets the bi-stable 1 to remove the clearing signal to 11.
Patent GB-608586-A (GB)
Title: Improvements in or relating to optical sighting devices such as telescopes and periscopes
IPC: G02B23/00
Filed: 1945-01-29
Abstract: 608,586. Telescope systems. KODAK, Ltd. Jan. 29, 1945, No. 2257. Convention date, Nov. 20, 1943. [Class 97 (i)] To ensure a flat field in a telescope, periscope or other sighting instrument an optical system including an objective with at least eight refracting surfaces and having a negative Petzval sum and over-corrected curvature of the field produces an image viewed through an eyepiece having a positive Petzval sum and under-corrected curvature of the field matching that of the image. The negative contribution to the Petzval sum of the objective system may be supplied by the objective or by an erecting lens system. Fig. 5 shows a sighting telescope in which both the objective 80 and erecting system 81 have negative Petzval sums, the image produced thereby being curved towards the eyepiece 84 as shown. Data are given. Specifications 608,583, 608,584 and 608,585 are referred to. The Specification also refers to a telescope comprising objective and eyepiece only. The Specification as open to inspection under Sect. 91 describes also the subject-matter of Specification 608,663 and also a sighting device comprising an objective, a field lens comprising two meniscus members of equal radii with their concave surface inwards, and a relay lens of the type described in Specification 608,663 producing a flat image in the field of view of the eyepiece. This subject-matter does not appear in the Specification as accepted.
Patent GB-1469774-A (GB)
Title: Roll-forming
IPC: B21H1/18
Filed: 1975-03-19
Abstract: 1469774 Cross wedge rolling MITSUBISHI JUKOGYO KK 19 March 1975 [17 Jan 1974 2 May 1974] 2289/74 and 9221/75 Heading B3M Cross wedge rolling apparatus which is suitable for rolling a cylindrical component 7, Fig. 7, with a reduced diameter central portion, comprises a pair of wedge-shaped dies each having outer bevelled surfaces of compound form. The leading end of the die, Fig. 8a, has a bevelled reducing surface a 11 -a 12  of angle α, which progressively changes in width to b 11 -b 12 , c 11 -c 12  and finally d 11 -d 12  (which is a point). As the reducing surface diminishes, a clearance surface of angle # progressively increases in width until it forms the whole of the bevelled surface. The clearance surface is not in contact with the corresponding workpiece surface (whose angle is #) and permits a greater diameter ratio d 0 /d than normal to be obtained. The dies may be carried on rolls or on flat plates.
Patent GB-670340-A (GB)
Title: Improvements in or relating to high-frequency aerials
Inventor: FAUDELL CHARLES LESLIE
IPC: H01Q1/48
Filed: 1949-01-28
Abstract: 670,340. Aerials. ELECTRIC & MUSICAL INDUSTRIES, Ltd. Jan. 30, 1950 [Jan. 28, 1949], No. 2352/49. Class 40 (vii). Relates to means for effectively earthing an electrical conductor as regards high frequencies of the type disclosed in Specification 509,500 in which one end of a conducting element of electrical length #/4 is connected to the conductor so that the element projects from the conductor and presents a low impedance at the connection point. According to the present invention, the element is coiled to conserve space and its selectivity, i.e. variation of earthing effect with frequency, is reduced by disposing a non- magnetic conductor core within the coil. The invention is described as applied to earthing the outer conductor of a coaxial aerial feeder, Fig. 1 and Fig. 2 (not shown), and earthing one conductor of a two-wire transmission line feeding an unbalanced aerial, Fig. 3 and Figs. 4 and 5 (not shown). The invention is also stated to be of use for earthing travelling-wave aerials. As shown in Fig. 1, a unipole aerial 1 formed of non-magnetic rod or tube is connected to the inner conductor of a coaxial feeder 2 and the outer conductor is connected to the earthing element which comprises a coil 4 wound on a cylindrical insulating former 5 and surrounded by a split cylindrical plastic casing 6. In this embodiment the unipole 1 constitutes a core for the coil. When used on a motor-car or aircraft, the lower end of the casing 6 is flanged for mounting on the roof. As shown in Fig. 3, an aerial comprises a plurality of parallel thin #/4 conductors 12 connected to the top edge of a trapezoidal non- magnetic terminal plate 15 which is connected to one conductor of a screened two-wire feeder 21 whose other conductor is connected to the earthing coil 18 which is wound on a hollow insulating former 19 of rectangular cross-section surrounding the terminal plate. The whole assembly is contained in a flat rectangular insulating casing 14 closed by a screwed-on backplate and provided with fixing holes 24 for mounting, the aerial conductors 12 projectng through holes 13 in the casing which may be sealed. Alternatively, a coaxial feeder may be employed. In either of the above two embodiments, the coil may be wound round the feeder instead of round the aerial. Suitable dimensions are given for operation at frequencies of 435 and 45Mc/s.
Patent GB-562348-A (GB)
Title: Improvements in typewriters
IPC: B41J29/15
Filed: 1943-02-12
Abstract: 562,348. Copy-holders. WEBBE, A. A. Feb. 12, 1943, No. 2356. [Class 100 (iii)] In a copy-holder for a typewriter or like machine, the copy is wound on a roller 10 which is geared to the platen roller 11 by means of a small pinion 12 which can be withdrawn out of mesh when desired. The script is held to the roller 10 by paper holders, and is covered by a shield 22 having a slot 23 which permits one line to be visible at a time.
Patent GB-379613-A (GB)
Title: Improvements in or relating to electrolytic condensers
IPC: H01G9/00
Filed: 1932-01-26
Abstract: 379,613. Electrolytic condensers. NAAMLOOZE VENNOOTSCHAP PHILIPS' GLOEILAMPENFABRIEKEN, 13D, Emmasingel, Eindhoven, Holland. Jan. 26, 1932, No. 2358. Convention date, Feb. 13, 1931. [Class 37.] In an electrolytic condenser the plate-shaped electrodes or the successive turns of a single electrode are arranged at some distance from one another and are separated by a spacing member consisting of a corrugated or profiled plate or band of insulating material so as to permit escape of gas bubbles. In the construction shown in Fig. 2 for smoothing pulsating.direct currents, the container 1 is of iron and forms one electrode, the other electrode 2 consisting of a rolled-up plate of zirconium coated with a layer of zirconium oxide, successive turns being spaced apart by one or more corrugated strips 3 of paper, celluloid, &c. The vessel 1 is filled with a solution of potassium hydroxide. In a modification, Fig. 3, for alternating currents, two electrodes 2, 6 of titanium coated with a layer of titanium oxide are rolled up parallel to one another and separated by a perforated strip 3. A copper wire 9 is laced through the holes so as to connect the spaces on both sides of the celluloid strip. One of the titanium plates 2, 6 may be replaced by a nickel or other plate without oxide film, giving a condenser of low internal resistance for smoothing a pulsating direct current. The Specification as open to inspection under Sect. 91 (3) (a) comprises also a modification, Fig. 3 (Cancelled) in which the plates are separated by glass rods 7. The vessel 8 consists of ebonite or of an artificial resin with a filling material such as that known under the registered Trade Mark " Philite." The rods 7 also may be made of this material. This subject-matter does not appear in the Specification as accepted.
Patent GB-508719-A (GB)
Title: Improvements in apparatus for spraying paint and other substances
IPC: B05B7/08
Filed: 1938-01-25
Abstract: 508,719. Spray-producers. KRAUTZBERGER, A. Jan. 25, 1938, No. 2420. Convention date, Jan. 25, 1937. [Class 69 (iii)] A paint sprayer has separate ducts formed in its body for delivering compressed air for atomizing the paint and for modifying the shape of the spray produced. Figs. 2, 3 and 4 show an apparatus in which compressed air is led through parallel passages a, b in the handle of a sprayer past separately controlled valves h, h<1> to the atomizing nozzle d and the shaping jets f respectively. These passages may be separately controlled by cocks c, c<1> and a relief valve 5 is provided to prevent excess pressure. The passages are separately controlled by trigger k, k<1> operating the valves h, h<1> through toothed segments p, p<1>, r, r<1> the segment which operates the atomizing air abutting against linkages u, u<1> to operate the jet needle v against the action of a spring t. A screw y is provided to allow the regulating valve h to remain partly open when no spraying occurs. Paint is led from a receptacle to the chamber z and passes from there to the paint nozzle. Compressed air may be supplied to the paint receptacle through a passage or it may be connected to the hollow needle valve. Additional air ducts 9 may be provided to produce a screen of air around the spray. In a modification in place of the triggers k, k<1> finger operated levers may be provided at the rear of the apparatus. Fig. 7 shows a modification in which the air ducts a, b are supplied with compressed air from pipes provided with valves and the hollow needle valve v is arranged to be operated intermittently by a tappet 14 to spray the paint &c. in puffs. Pipes 12, 13 communicate with the interior of the hollow needle v and may supply compressed air or paint which may be of different colours. Paint is supplied through duct 11 into the annular chamber around the needle valve v. The arrangement of the nozzle &c. is the same as that shown in the remaining Figures of the drawings.
Patent GB-466613-A (GB)
Title: Improvements in or relating to means for controlling feed water pumps
IPC: F22D5/18
Filed: 1936-01-27
Abstract: 466,613. Turbine driven centrifugal pumps. WEIR. Ltd., G. & J., and HILLIER, H. Jan. 27, 1936, No. 2447. [Classes 110 (i) and 110 (iii)] A turbine-driven centrifugal feed-pump 1 is governed by a member 4 open on one side to atmosphere and a spring 7 or other load and on the other side to a section of a convergentdivergent tube 2 in the pump discharge, the movements of the member 4 being communicated to the turbine supply steam-valve 13. Levers or relays may be used to vary the movement between member 4 and valve 13, and the load 7 may be adjustable. Two or more governing-devices may be used singly or together and may be connected to separate tubes 2 or to different sections of one tube. When two or more pumps operate in parallel, the discharge pipes are connected on each side of the tubes 2, and also at the tube throats. The member 4 may have different diameters connected to different sections of the tube 2. Specification 109,421, [Class 110 (i)], is referred to.