baber/WOPTO huggingface dataset:
Patent GB-777401-A (GB)
Title: Improvements in or relating to photographic cameras
IPC: G03B7/00
Filed: 1955-06-10
Abstract: 777,401. Photographic cameras. DECKEL, H., and DECKEL, F. W. June 10, 1955 [June 16, 1954], No. 16807/55. Class 98(1) In a photographic camera with a focal plane shutter, the shutter speed and diaphragm adjusting members are mounted for rotation about the optical axis, a graduated scale indicates their relative position and the members may. be adjustably coupled to maintain a constant exposure value. As shown in Fig. 1 a rotatable spindle 12 is fast with two rollers 14 carrying the leading blind of a roller-blind shutter. A further roller 16, loosely mounted on the shaft 12, carries the following blind of the shutter. Both blinds are wound against spring action by means of a film feed roller 18 carrying a pin 20 which engages a pin 22 on a gear wheel 24 which drives the rollers 14 through gears 30, 32. When a spindle 26, on which the feed roller 18 is loosely mounted, is depressed against the action of a spring 28, the engagement between the pins 20, 22, is released, and the blinds run down to make an exposure. At the end of the winding of the shutter and of the film, the film feed roller 18, and consequently the rollers 14, are locked in position. The roller 16 is engaged by a detent lever 42 pivoted at 44, see also Fig. 2. The lever 42 engages a cam 38 fixed to roller 16 by a pin 34 passing through a slot 36 in the upper roller 14. A bevel wheel 52 is fast on the spindle 12, and engages a planet wheel 50 mounted on an arm 46 loosely mounted on the spindle 12. The planet wheel 50 also engages a bevel wheel 54 loosely mounted on the spindle 12 but held in position by means to be described. When the shutter is released, the leading blind begins to run down, the rollers 14 and the spindle 12 rotating. Bevel 52 turns with spindle 12, causing rotation of the bevel 50. The spindle 48 of bevel 50 engages a stop 56 on the lever 42, thereby releasing cam 38 and allowing the following blind, wound on roller 16, to run down. The width of the slit between the blinds and hence the time of exposure, depends on the distance through which the pin 48 has to move before striking the stop 56. The initial position of this pin is determined by the initial positon of bevel 54. Bevel 54 is pinned to a gear wheel 58, which is connected through gears 60, 62 to a gear sector of a lever 64 pivoted at 66 to the camera body, and having a pin 68 sliding in a cam slot 70 in a sector 72 rotatable with the diaphragm exposure time setting ring. The exposure time setting ring 80 forms part of an interchangeable lens mount, and is releasably connected to a diaphragm setting ring 106 in the manner described in Specification 769,070.. The coupling of the rings is adjusted in accordance with the light value, and thereafter any equivalent combination of shutter speed and diaphragm aperture may be set, the shutter being set automatically to the required speed by means of the sector 72.
Patent GB-547657-A (GB)
Title: Device for drying chambers for the entry or discharge of material to be dried
IPC: F26B25/00
Filed: 1941-12-30
Abstract: 547,657. Drying-apparatus. AKT.-GES. BROWN, BOVERI, & CIE. Dec. 30,1941, No. 16810. Convention date, Dec. 30, 1940. [Class 34 (ii)] To prevent the escape of the circulated drying air in a chamber a through the inlet or outlet opening for the material being dried, the material is conveyed at the opening between travelling perforated bands i in an air lock l through which air is circulated by a fan o to maintain a pressure at the entrance to the lock equal to that in the chamber near the opening. A fan c circulates air through the chamber and through a heater d. The air circulated through the air lock may be heated by the vapour laden air from the chamber or by a separate heater w. The circulation through the lock is regulated by a throttle valve v controlled by a differential monometer u.
Patent GB-313082-A (GB)
Title: Rock drilling bit
IPC: E21B10/08
Filed: 1929-05-31
Abstract: 313,082. Powell, A. F. June 6, 1928, [Convention date]. Borehole apparatus.- A rotary drill for boring wells comprises a head 3 rotatable on a driving member 4 and with limited longitudinal movement relatively thereto, the head carrying rolling cutters 2 supported by bushings 14 on pins 13 locked by pins 23; the driving member 4 applies pressure directly to the cutters and has depending pins 8 engaging teeth 16 on the cutters to impart rotation thereto.
Patent GB-181245-A (GB)
Title: Improvements in hinged joints more particularly for vehicle wind screens
IPC: B60J1/04
Filed: 1921-06-20
Abstract: 181,245. Napoleon, B. June 20, 1921. Pivoting - adjustments.-A hinge joint, more particularly for wind-screens of motorvehicles, comprises a movable member d formed integral with a thin sleeve d<1> having a circumferential slot d<2> and being split at d<3>, this member being mounted on a substantially solid block c split at c<2> and having a recess c<3> with which engages a pin a<3> on the flanged boss a<1> of the fixed supporting-member a. These parts are connected by a pin f. By means of a locking- screw b, the block may be expanded into engagement with the member d', which in turn grips the outer boss of the support a.
Patent GB-612877-A (GB)
Title: Improvements in mercury vapour rectifiers having metallic tanks and liquid cathodes
IPC: H01J13/04
Filed: 1946-06-04
Abstract: 612,877. Metal vapour converters. ATELIERS DE CONSTRUCTIONS ELECTRIQUES DE CHARLEROI. June 4, 1946, No. 16949. Convention date, Dec. 17, 1945. [Class 39 (i)] The ring-shaped anode a of a mercury vapour current converter is contained in a chamber in immediate proximity to the liquid cathode, the anode chamber being fixed to the converter cover and wholly contained in the interior of the converter tank leaving between it and the tank wall a space for the free return of condensed mercury to the cathode; the internal wall g of the chamber is a cylindrical screen allowing passage of the discharge and operating as a de-ionizing grid. The anode chamber is preferably fixed to the converter cover by insulating joints so that the screen may be used as a control grid; the surfaces of the chamber other than the screen may be covered with enamel insulation. The tank may be provided with iron or copper cooling fins. Specification 575,387 is referred to.
Patent GB-1469818-A (GB)
Title: Process for preparation of acetylenes
IPC: C07D307/79
Filed: 1974-04-18
Abstract: 1469818 Acetylene derivatives HOECHST AG 18 April 1974 [21 April 1973] 17031/74 Heading C2C The invention comprises compounds of the formula where X is a group of the formula in which R<SP>4</SP> is C 1  to C 4  alkyl or phenyl; n is zero or 1 and, if n is zero, A is naphthyl, anthryl, phenanthryl, pyrenyl, in which Y is -CH=, -N= or -NR<SP>7+</SP>=T<SP>-</SP> in which R<SP>7</SP> is hydrogen or C 1  to C 4  alkyl optionally substituted by hydroxy, cyano or phenyl and T is a colourless anion, Z is -O-, -S- or -NR<SP>8</SP>- in which R<SP>8</SP> has the same meanings as R<SP>7</SP>, R<SP>5</SP> and R<SP>6</SP> are each hydrogen, halogen, C 1  to C 4  alkyl, C 1  to C 4  alkoxy or phenyl or together R<SP>5</SP> and R<SP>6</SP> form a fused benzene ring; B has the same meanings as A or is phenyl; and if n is 1, A can also be phenyl, cyano, -COOR<SP>1</SP> (in which R<SP>1</SP> is C 1  to C 4  alkyl or phenyl optionally substituted by halogen, hydroxy, C 1  to C 4  alkoxy, amino, mono- or di- C 1  to C 4  alkylamino, or tri-C 1  to C 4  alkylammonium) or -CONR<SP>2</SP>R<SP>3</SP> (in which R<SP>2</SP> and R<SP>3</SP> are each hydrogen or C 1  to C 4  alkyl or R<SP>2</SP> and R<SP>3</SP> together with the nitrogen atom are morpholino or piperidino); and A and B are optionally substituted by halogen, C 1  to C 4  alkyl, C 1  to C 4  alkoxy, cyano, -COOR<SP>1</SP>, -CONR<SP>2</SP>,R<SP>3</SP>, -SO 2 OR<SP>1</SP>, sulpho, nitro, amino, mono- or di-C 1  to C 4  alkylamino, tri-C 1  to C 4  alkylammonium, C 1  to C 4  alkanoylamino, benzoylamino, C 1  to C 4  alkanoyloxy, benzoyloxy or benzocumarinyl. They may be prepared by reacting a vinyl sulphone of the formula wherein R is C 1  to C 4  alkyl or phenyl optionally substituted by halogen, nitro, C 1  to C 4  alkoxy or C 1  to C 4  alkanoylamino, with a stoichiometric amount of a strong base in a polar solvent at from - 30‹ to + 150‹ C. The compounds of Formula I are optical brightening agents.
Patent GB-1014416-A (GB)
Title: 3,3-alkylenedioxy-11ª‰-hydroxy-16,17-dioxo-16,17-seco-d-homo-5-androsten-18-oic acid (11-18)-lactone and the production thereof
IPC: C07J63/00
Filed: 1962-11-13
Abstract: The invention comprises 3,3-alkylenedioxy-11b  - hydroxy - 16,17 - dioxo - 16,17 - seco - D-homo - 5 - androsten - 18 - oic acid (11-18)-lactone and a process for the preparation thereof by treating 3,3-alkylenedioxy-11b ,16-17-trihydroxy - D - homo - 5 - androsten - 18 - oic acid (11-18)-lactone with an oxidizing agent such as lead tetracetate or periodic acid in an inert solvent.
Patent GB-555863-A (GB)
Title: Improvements in high frequency electric apparatus
IPC: H01J29/88
Filed: 1940-12-02
Abstract: 555,863. Wireless systems ; electron oscillators. BRITISH THOMSON-HOUSTON CO., Ltd. Dec. 2, 1940, No. 17164. Convention date, Nov. 30, 1939. [Classes 39 (i) and 40 (v)'] In a velocity modulated electron discharge tube used for signalling two independent output circuits 35, 39 are connected to pairs of electrodes 26, 27 and 28, 29 surrounding an electron stream in a tube 10, the electrodes 26 and 28 being of different lengths. A further electrode 25 also surrounds the stream, the electrodes 25, 27, 29 and two internal electrodes 18, 19 being all connected together. The potentials applied to these electrodes, the cathode and collector electrode are obtained from sources 22, 23 and 24 and as shown the source 23 can be short circuited through the high resistance 43 by a key 42. According as this source 23 is in or out of the biasing circuit one or other of the output circuits 35 or 39 is excited, the change in potential of the electrodes causing a change in beam velocity which results in resonance in either of the electrode pairs 26, 27 or 28, 29 and the associated circuit ; hence by use of the key 42 any desired signal can be sent.
Patent GB-146168-A (GB)
Title: Gripper-wheel for motor-ploughs and traction engines
IPC: B60B15/10
Filed: 1920-06-25
Abstract: 146,168. Devers, O. G., (P÷hl-Werke Zweigneiderlassung der Maschinen-und Kranbau Akt.-Ges. zu D³sseldorf). June 25, 1920. Slipping-preventing attachments to wheels of the type comprising radially adjustable blades adapted to be held in positions projecting from cr lying within the rim. The apertures in the rim through which the blades D project are sufficiently wide to allow the earth accumulating thereon to be pressed inside the rim and be discharged at the sides of the wheel. The blades are pivoted to a ring G rotatable on the wheel hub and are guided in slots in members E rotatably mounted in the rim. The ring G is rotated by suitable toothed gearing on a shaft E<2> Fig. 2, which also carries a worm wheel M and is in turn driven by a shaft K<1> through an intermediate shaft L with a worm and worm wheel. The gearing is mounted in a casing suitably attached to the wheel hub. The blade D and its shank are, in some cases, integral, Fig. 5, the shank being pressed to channel shape and the depression being carried into the blade to form a strengthening rib as at D<3>. Fig. 3 shows a curved blade. The rim consists of a pair of angle rings A<1>, A<2>, Fig. 2, and the tread A may consist of separate plates spaced apart at their ends to form the openings for the grippers, or may consist of a ring of inverted channel section, Fig. 8, with the openings made therein. The edges of the openings are reinforced by ribs formed either by thickening the metal or pressing inwards or outwards. The Specification as open to inspection under Sect. 91 (3) (a) comprises also the following constructional details : The means for rotating the ring G, Figs. 1 and 2 (Cancelled) may consist of toothed gearing actuated manually or by the motor of the vehicle, and may be locked by a pin engaging holes in the ring and the wheel hub or by a spring pawl. In another arrangement, the shaft of one of the pinions forming part of the gearing is axially movable against a spring and carries a ratchet wheel which acts as the locking device. The blades are formed from sheet metal and have strengthenings ribs D<1>, D<2> either attached thereto or pressed up from the metal. In the construction shown in Fig. 5 (Cancelled), the rim consists of lengths 0 of T-section metal connected by bent plates P<1>, P<2> which provide the spaces for the blades D. The guide pieces are open at the sides on which the ribs D', D<2> of the blades are formed and are held in the plates P' by heads Q, the arrangement permitting removal of individual blades by detaching the plates P'. This subjectmatter does not appear in the Specification as accepted.
Patent GB-1099186-A (GB)
Title: New sultone condensation products and their use as levelling agents for electro-deposited coatings
Inventor: LEVASSEUR JEAN LOUIS
IPC: C09B47/08
Filed: 1965-04-23
Abstract: An electrolytic bath, in particular a nickel plating bath, comprises from 5 to 600 mg per litre of electrolyte of at least one condensation product of naphtho-1, 8-sultone with an organic compound containing per molecule at least one readily substituted hydrogen atom and at least one five-membered heterocyclic ring containing at least one nitrogen atom.  The electrolyte may comprise nickel sulphate, sulphamate, fluoborate or chloride, boric acid, a stabilizer such as saccharin, p-toluene sulphonamide, hexamine or cyanuric acid, a brightener such as an alcohol or an unsaturated aldehyde, a voltage lowering agent such as lauryl sulphate and at least one of the said condensation products.  The bath may also contain as a brightener the reaction product of equimolar amounts of bis-hydroxyethyl ether butyne diol and naphtho-1, 8-sultone. Specified heterocyclic compounds are indolenine, sodium b -isonitroso indole, phthalocyanine, 1, 5-dimethyl imidazole, succinimide, porphine or a porphyrine (an alkyl substituted porphine).ALSO:Condensation products of naphtho-1,8-sultone with an organic compound containing per molecule at least one readily substituted hydrogen atom and at least one five-membered heterocyclic ring containing at least one nitrogen atom may be obtained by reacting the sultone and heterocyclic derivative together in the proportions of one mol. of sultone for each available nitrogen atom in the or each heterocyclic ring in an aqueous medium at a pH of 3.5-4.0 and heating at a temperature of 85 DEG  C. and then cooling. Specified heterocyclic derivatives are indolenine, sodium b -isonitroso indole, phthalocyanine, 1,5-dimethyl imidazole, succinimide, porphine or a porphyrine (as alkyl substituted porphine).
Patent GB-374283-A (GB)
Title: Improved process of and apparatus for casting refractory materials
IPC: B28B1/54
Filed: 1931-06-15
Abstract: 374,283. Casting refractory materials. CORHART REFRACTORIES CO., 16th Street, Louisville, Kentucky, U.S.A.-(Assignees of Schroeder, F. W. ; 405, Belgravia Court, Louisville, U.S.A.) June 15, 1931, No. 17339. Convention date, June 14, 1930. [Class 87 (ii).] Splashing of molten refractory material against the walls of a mould is obviated, during. pouring, by delivering the material from the furnace A to an intermediate vessel C from which it overflows with a low outfall into the mould b. The vessel C is mounted on arms D so that it can be swung out of the way when not in use.
Patent GB-420986-A (GB)
Title: Improvements in and relating to locks for motor vehicles
IPC: B60R25/021
Filed: 1933-06-17
Abstract: 420,986. Permutation locks. BRITTAIN, F. W., 37, King's Road, Flitwick, Bedfordshire. June 17, 1933, No. 17344. [Class 44] Permutation locking means for a slidable bolt d comprises a number of transversely slidable key or detent members e pressed upwards by springs, some of the detents engaging notches on the lower side of the bolt whilst others engage notches on the upper side of the bolt when they are depressed. Thus to release the bolt it is necessary to depress only the detents in engagement with the lower side thereof. The detent members are of loop form, Fig. 7, encircling the bolt, the assemblage being housed in a bipartite block c in a casing a having a hinged side portion a<6> normally secured by bolts with heads to be turned by a key. The bolt d is normally retracted by a spring d', being brought into operation by pressure on the head d<3>. A plate g attached to the casing, engages a notch g<1> to limit the movements of the bolt, the locked position being indicated on a plate g<2> visible through an aperture g<3>. The device is shown applied by a strap b,-the nuts b<1> securing which are inside the casing a,-to a steering column x on a motor vehicle but it is also stated to be applicable for locking a gear lever, brake lever or other control member.
Patent GB-735810-A (GB)
Title: Improvements in or relating to lighting arrangements for vehicles such as ships or automobiles
IPC: B60Q1/124
Filed: 1953-06-23
Abstract: 735,810. Vehicle lamps. SAKAI, K. June 23, 1953 [July 8, 1952; July 8, 1952], No. 17416/53. Class 75 (3). A lighting arrangement for vehicles comprises a lamp 7 rotatably mounted on the vehicle about a vertical axis which is disposed in front of the centre of gravity g of the lamp so that when the vehicle changes direction the lamp is rotated by centrifugal force, and rotation is opposed by a resilient member, e.g. a spring 11 tending to centralize the lamp with its front face directed along the longitudinal axis of the vehicle and directional control means, e.g. air guiding fins 9 are provided on the lamp to assist rotation and also centralization of the lamp. The spindle 6 of the lamp is rotatably received in a socket 2 secured to the vehicle. The air guiding fins 9 are mounted on both sides of the streamlined member 10. In a modified construction the lamp has a single central air guiding vane and an arm pivoted to the lamp spindle carries at its free end a serrated roller which is pressed downwardly by spring means on to a tacky surface on a fixed horizontal member of arcuate shape. Projections at the ends of the arcuate member limit the movement of the roller and so prevent over rotation of the lamp.
Patent GB-1437580-A (GB)
Title: Manufacture of copper wire rod
IPC: B22D11/12
Filed: 1974-04-22
Abstract: 1437580 Making copper wire METALLURGIE HOBOKEN-OVERPELT 22 April 1974 [27 April 1973] 17463/74 Heading B3A A method of making copper wire rod comprises casting copper in a continuous casting machine 2 having an inclined, straight moulding cavity 3 to produce a copper bar 6, guiding the bar towards a horizontal rolling mill 7 along a curved path having a maximum curvature of less than 0À25 mm.<SP>-1</SP> and converting the bar into wire rod in the rolling mill. Curvature at a given point on a curve is the reciprocal of the radius at that point. As the bar 6 leaves the casting machine 2 it is cooled rapidly to form a fine grain structure, Fig. 2 (not shown), trimmed and/or cleaned by conventional means. The cast bar has a cross-section preferably at least 70 times larger than that of the rolled wire rod, which after rolling is drawn into wire. The small amount of curvature of the curved path prevents cracking of the bar and thus any oxide inclusions are finely divided and uniformly distributed, Figs. 4, 6 (not shown).
Patent GB-267382-A (GB)
Title: Improved draw works for well drilling plant
IPC: E21B19/00
Filed: 1926-07-13
Abstract: 267,382. Marks, E. C. R., (Union Tool Co.). July 13, 1926. Borehole apparatus.-Draw works for rotary well-boring apparatus comprises a frame with end posts 2, 3 and an intermediate post 4, supporting a driving shaft 6 and a drum shaft 5, the shaft 6 driving the shaft 5 at low speed through chain gearing 11 and one-way clutch 12, at intermediate speed through chain gearing 16 and oneway clutch 17, and at high speed through a chain 27a driving a sprocket 28 loose on the shaft 5 and connected to a clutch drum 30 adapted to be engaged by a clutch band 34 carried by a counterbalanced member 32 on the shaft 5; the band clutch is operated by a treadle 52 operating a sliding sleeve 40 acting through a strut link 41, the clutch actuating members being arranged within an open ended brake drum 25 on the drum 21. The shaft 6 also operates the rotary table through a clutch 8<a> and sprocket 8.
Patent GB-116843-A (GB)
Title: Improvements connected with the Manufacture of Blanks for Nuts.
Inventor: HOLLINGS ERNEST
IPC: B21K1/68
Filed: 1917-11-29
Abstract: 116,843. Hollings, E. Nov. 29, 1917. Drawings to Specification. Nuts.-Relates to improvements in the method of making nuts described in Specification 10993/15, [Class 83 (iv), Metals, Working], wherein a bar was formed with the edges thickened and the faces indented or concave, and consists in forming one face only with the thickened edges &c., the other face being flat, or if crowned nuts are required the face is made slightly convex. This avoids the necessity of turning the bar after severing a nut.
Patent GB-540852-A (GB)
Title: Improvement in axial ball and roller bearings
IPC: F16C19/30
Filed: 1940-12-13
Abstract: 540,852. Bearings. AKTIEBOLAGET SVENSKA KULLAGERFABRIKEN. Dec. 13, 1940, No. 17671. Convention date, Dec. 15, 1939. [Class 12 (i)] A cage 5 for a ball or roller thrust bearing is contained within one of the bearing rings 1, with freedom of movement, by a sleeve 7 with flange 9, the sleeve being connected to the ring to form a self-contained unit. Ring 1 has a flange 6 to engage the large ends of the rollers 3. Sleeve 7 is a press fit within ring 1 and has one edge rolled into a groove 8 in the ring. The cage has tongues 4 with concave faces to house the rollers and has lubricant holes 12. The cage may be shaped to retain the balls or rollers without the aid of flange 6.
Patent GB-250798-A (GB)
Title: Improvements in or relating to stencil sheets
IPC: B41N1/24
Filed: 1925-07-10
Abstract: 250,798. Horii, S. July 10, 1925. Stencils.-Stencil sheets, adapted to be stencilized by pressure, are produced by coating a sheet of fibrous material, such as Yoshino paper, with a mixture of an ester or esters, polysaccharides, such as starch acetate, cellulose acetate, nitrate, or xanthate, dissolved in alcohol, ether, or amyl acetate, &c., with naphthenic acid glycerides. Tempering-agents, such as fatty acids, fats, and paraffin or ceresine wax, may be incorporated in the mixture. In a modification, these materials may be added during the manufacture of the paper. An example of a composition employed is : pyroxylin 5, napthenic acid glycerides 15, ceresine 5, stearin 5, olein 5, methyl alcohol 15, acetone 15, amyl acetate 50, and petroleum benzine 20 parts by weight.
Patent GB-152757-A (GB)
Title: Improvements in governing and controlling internal combustion engines
IPC: F02D1/00
Filed: 1919-07-18
Abstract: 152,757. Crossley, Sir K. I., and Webb, W. Le P. July 18, 1919. Regulating delivery by by-passes.-In a fuel pump for internal-combustion engines, a by-pass valve B is opened at a variable point in the delivery stroke of the pump plunger A by means of a floating lever Q the fulcrum of which is adjusted by the governor. The fulcrum may consist of a cam-surface pivoted at R or a wedge sliding on a fixed abutment. The lever Q is mounted on the plunger A so that it is actuated by the plunger-actuating mechanism, or it may be supported by actuating-mechanism. A set screw M may be provided at the fulcrum end of the lever or at the point where it engages the stem of the valve B. A spring holds the lever up to the fulcrum. Specification 21043/11 is referred to.