baber/WOPTO huggingface dataset:
Patent GB-443560-A (GB)
Title: An improved change-key lock
IPC: E05B35/08
Filed: 1934-06-28
Abstract: 443,560. Change-key locks. GIAMELLI, U., 130, Gloucester Road, Regent's Park, London. June 28, 1934, No. 19083. [Class 44] A change-key lock comprises a series of toothed levers C engaged by the key bits and meshing with a corresponding series of toothed wheels G carrying gated discs co-operating with projections L on the bolt A, the pinions G being mounted on a pin X carried by a plate B which is movable, to bring the pinions out of mesh with the levers when it is desired to effect a change of key, by a separate key inserted in the back of the lock, this key being insertable only when the bolt has been partly withdrawn by the main key. This separate key has two prongs inserted into grooves in a barrel F having an eccentric portion engaging the plate B. Sliding on the barrel F is a washer H, Fig. 5, pressed towards the bolt by a spring J, this washer having inner projections entering the grooves where they are encountered by the prongs of the separate key to press the washer back. When the bolt is shot, however, a notch at the upper edge of the bolt A and a slot 11 therein engage hooked projections N on the washer to prevent it from being pushed back. To effect a change of key from the " bolt'-shot " position, the key last used is inserted and turned through approximately 100‹. This completely sets the gated discs and partially withdraws the bolt to release the washer H. The separate pronged key is then inserted and turned through 180‹ to displace the pin X. The main key is then turned to complete 180‹ of movement and is withdrawn. The substitute key is inserted upside down and turned back to the 100‹ position thereby resetting the levers C to a new combination while the gated discs are held by the projections L on the bolt. The pin X is then moved to bring the pinions back into mesh by turning the separate key to its initial position and this key is withdrawn, whereupon the new key can be turned in either direction and withdrawn. To ensure that all the levers C are brought into contact with the new key a plate E moved by the key has a projection P for depressing the levers at the end of the movement of the key. The bolt is moved by a plate D, Fig. 2, engaged by the end of the key. The bolt carries a latch end Y, Fig. 4, sliding on pins against springs K. A stop O sliding vertically in a slot in the bolt and projecting to the outside of the lock case can be moved to prevent the inward movement of the latch end, or by previously depressing the end Y the stop can be caused to engage the slot shown and hold the latch in its retracted position.
Patent GB-615627-A (GB)
Title: Improvements in or relating to floors
IPC: E04B5/26
Filed: 1945-07-25
Abstract: 615,627. Crowbars. LAVANANT, P. July 25, 1945, No. 19096. Convention date, June 1, 1944. [Class 61 (ii)] [Also in Group X] In a floor (see Group X) having joists. 30 connected to underlying concrete beams by means of stirrup members, these members have a pair of collars 32 which are drawn up to embrace the joist by a lever member 40. This member comprises a bracket 45, which can slide along the joist and has a pin 41 on which the lever rocks. The lever has two hooked prongs 44 at one end, which engage the collars 32, and a flat part 42 at the other end which is pressed down by the builder's knee.
Patent GB-1224595-A (GB)
Title: Improvements in and relating to the production of phthalic acid esters
Inventor: WRIGHT DONALD
IPC: C07C69/16
Filed: 1969-03-03
Abstract: 1,224,595. Alkenyl esters of phthalic acids. IMPERIAL CHEMICAL INDUSTRIES Ltd. 19 Feb., 1970 [3 March, 1969; 15 April, 1969], Nos. 11139/69 and 19154/69. Heading C2C. Alkenyl esters of ortho-, iso- or terephthalic acid containing at least eight carbon atoms in the ester group are prepared by contacting in a substantially halide-free medium ortho-, iso- or terephthalic acid with an acyclic conjugated diene of formula in which the residual valencies are satisfied by methyl groups or hydrogen atoms, in the presence of a noble metal of Group VIII of the Mendeleef Periodic Table or a compound thereof, e.g. platinum, palladium and their acetates, acetyl-acetonates, #-allyl acetates and tetrakis- (triphenyl phosphine) platinum. In examples, dioctadienyl orthophthalate is prepared from butadiene and orthophthalic acid.
Patent GB-351737-A (GB)
Title: Improvements in serving-hatchways
IPC: E06B7/32
Filed: 1930-06-24
Abstract: 351,737. Service hatches. SCHUMAN, K. O., The Wilderness, Barge Walk, Hampton Wick, Middlesex. June 24, 1930, No. 19241. Addition to 332,497, [Class 20 (iii), Doors &c.]. [Class 20 (iii).] The doors of the service hatch described in the parent Specification are controlled so as to open alternately by means of links f and a slotted guided connecting link g, Fig. 1, and the flap p is provided with a spring-pressed moulding b. The door hinges comprise pins l supported by upper and lower brackets m and folded extensions i of the metal lining of the doors. The moulding is carried on a U-shaped bracket w by a rod t fixed in the moulding, a spring u acting between the bracket and the moulding, Fig. 7. The doors a are engaged by projections on spring strips d fixed to the frame.
Patent GB-299086-A (GB)
Title: Improvements in the manufacture and production of viscous oils
IPC: C07C2/22
Filed: 1927-07-21
Abstract: 299,086. Johnson J. Y., (I. G. Farbenindustrie Akt.-Ges.). July 21, 1927. Mineral and tar oils.-Oils of high viscosity and flashpoint are obtained by passing gases, rich in lower olefines e.g. ethylene, propylene, butylene and amylene, which may be obtained by cracking tar or mineral oils, or as a by-product from other industrial processes, into hydrocarbon mixtures which are liquid at ordinary temperatures, in the presence of catalysts of the Friedel-Crafts type, e.g. the chlorides of aluminium, zinc or trivalent iron. The action of the catalysts may be improved by activating admixtures such as mercuric or uranyl chloride The reaction is usually carried out at temperatures up to 200‹ C., and at atmospheric or higher pressures. If cracked products containing appreciable amounts of hydrocarbons liquid at ordinary temperatures are used as a source of olefines, these mav be treated without further addition of hydrocarbons. Examples are given in which mineral oil, boiling between 200-325‹ C. or brown coal tar oil boiling between 160‹-310‹ C. is cracked in a column still at 600‹ C., and the resulting vapours are immediately passed into a vessel fitted with stirrers and containing one of the catalysts mentioned. The resulting oil is then distilled or otherwise treated to obtain lubricating oils. Alternatively, mixtures of the olefines may be passed into such oils as higher boiling petroleum fractions, engine or browncoal tar oils with stirring and heating, with or without pressure, in the presence of catalysts. The oils are then filtered from the catalyst mass, dried and further treated.
Patent GB-1037846-A (GB)
Title: Improvements in or relating to the prevention of explosions in furnace installations
IPC: F27B1/26
Filed: 1964-05-08
Abstract: 1,037,846. Preventing ingress of air to cupola furnaces. SUITPOLDHUETTE A.G. May 8, 1964 [May 11, 1963], No. 19390/64. Heading F4B. Explosions caused by drawing air into the filter plant through the top of a cupola furnace are prevented by regulating the flow through the off-take from the cupola so as to maintain the cupola top in the region of the charge at or slightly above atmospheric pressure. The pressure in the top 2 of a cupola furnace 1 is measured by pressure sensitive devices in rings 11, 12, 13 above the level of the gas off-take tube 6 and used to control a valve 10 in the gas line beyond an electrostatic precipitator 8 and suction fan 9. The upper ring 11, near the full charge level, controls valve 10 directly and also operates a safety circuit 26, 27, 28 to cut off the high tension supply to the precipitator 8 and close a quick acting valve 7 in the event of pressure at this ring falling below atmospheric. The lower rings 12, 13 are connected in parallel, and provide a signal controlling valve 10 and proportional to the differential and integral of the pressure as well as directly proportional to the pressure in the cupola top.
Patent GB-1346963-A (GB)
Title: Production of aliphatic organic silicates
IPC: C07F7/04
Filed: 1972-04-26
Abstract: 1346963 Alkali metal alkoxyethoxides ANDERSON DEVELOPMENT CO 26 April 1972 [4 May 1971] 19429/72 Heading C2C [Also in Division C3] The invention comprises compounds ROCH 2 - CH 2 OM, where R is C 1-4  alkyl and M is an alkali metal. The compounds are made by dissolving the metal in the alcohol.
Patent GB-635726-A (GB)
Title: Improvements relating to the manufacture of alkoxy silanes
IPC: C07F7/18
Filed: 1947-07-21
Abstract: Alkoxy silanes are obtained by reacting an aliphatic alcohol with a chloro silane in the presence of a tertiary amine, e.g. dimethyl aniline capable of readily forming a hydrochloride salt and thus preventing a secondary series of reactions resulting in hydrolysis of the alkoxy silane produced.  A detailed example is given.
Patent GB-140959-A (GB)
Title: Improvements in aerial ropeways for transport and haulage
IPC: B63B21/56
Filed: 1919-08-07
Abstract: 140,959. Soc. Anon. Ateliers Otis-Pifre. May 26, 1919, [Convention date]. Rope railways.-Ropeway tracks comprise two fixed cables c, d, the former deeply sagged to take transverse stresses and the latter stretched taut to take longitudinal stresses. The cables are secured to supports a or to brackets b fixed or articulated to the supports a. The tractor e, Fig. 3, engages one cable and has a tow-rope f. In a modification, Fig. 4, the tractor e runs on the ground or on a track, and is propelled by making contact with one cable, the tractor being connected to a traveller h which runs on cable c and carries a tow-rope. Each cable may be replaced by a plurality of cables or by a chain, while the rigidity of cable d may be increased by a catenary suspension. Propulsion may be effected by an endless rope.
Patent GB-977076-A (GB)
Title: Circuit arrangements for locating faults in a communication line system
IPC: H04B17/40
Filed: 1963-05-16
Abstract: 977,076. Fault testing. FELTEN & GUILLEAUMER FERNMELDEANLAGEN G.m.b.H. May 16, 1963 [May 16, 1962], No. 19534/63. Heading G1U. In a communication system including at least two unmanned repeater stations connected in series in one of two communication lines of the system for being supplied therethrough with D.C. for operating the repeater amplifier, a fault locating arrangement comprises at each repeater station: first rectifying means connected in series with the repeater amplifier and conductive only in the normal direction of D.C. flow; and circuit means by-passing the series combination of the first rectifying means and amplifier, the circuit means including rectifying means non-conductive in the normal direction of D.C. flow but permitting D.C. flow in the reverse direction through the bypass means and the adjoining portion of the two communication lines. In the drawing four repeater stations are connected in series in line a so that all the repeater amplifiers can be supplied with D.C. when a positive potential is applied to input terminal A. At each repeater station the amplifier R v  is connected in series with a rectifier Gr3, a rectifier Gr2 is connected in parallel with the series combination, and a rectifier Gr1 in series with a resistance R p  is connected between the amplifier and line b. The location of a short circuit on the line is determined by measuring the resistance between terminals A and B, preferably by connecting a constant current source to these terminals with terminal A positive and measuring the voltage across the terminals. The location of an open circuit on the line is determined by measuring the resistance between terminals A and B with the current reversed so that it flows through rectifiers Gr1 and Gr2 instead of Gr3. Resistors R p  should have a value which is considerably larger than the combined forward resistances of Gr1 and Gr2.
Patent GB-725496-A (GB)
Title: Improvements in and relating to electrical sockets
IPC: H02G3/06
Filed: 1953-07-14
Abstract: 725,496. Two-part couplings. UNITEDCARR FASTENER CORPORATION. July 14, 1953 [Aug. 30, 1952], No. 19584/53. Class 38 (1). A socket comprises a centre conductor 16 having a pair of test-probe-receiving blades 22 at one end, a terminal portion 26 at the other end, and an intermediate recess 30. A resilient insulating member 18 surrounds the conductor and has an outwardly-directed flange 42 at one end and a flange 40 at the other end projecting into the recess 30, being held therein by the crimped end 46 of a metal shell 20 surrounding the insulating member and having a flange 44 at its other end abutting flange 42. The shell is threaded externally for mounting in a panel (Fig. 4, not shown).
Patent GB-1530931-A (GB)
Title: N-(1-(4-phenyl-4-oxobutyl)-4-piperidyl)-2-thiophene carboxamide
IPC: C07D409/12
Filed: 1977-05-10
Abstract: 1530931 N-[1-(4-Phenyl-4-oxobutyl)-4- piperidyl]-2-thiophene carboxamide JOHN WYETH & BRO Ltd 10 May 1977 [12 May 1976] 19604/76 Addition to 1345872 Heading C2C The novel compound N-[1-(4-phenyl-4-oxobutyl)-4-piperidyl]-2-thiophene carboxamide and its pharmaceutically acceptable acid addition salts are either prepared by reacting 2- thieneyl halide with 4-amino-1-(4-phenyl-4- oxobutyl)-piperidine or reacting 4-(2-thieneylamino)piperidine with a 4-phenyl-4-oxobutyl halide and optionally forming an acid addition salt.  Pharmaceutical compositions of the compound or salt thereof with the usual excipients show hypertensive activity when administered orally or parenterally.
Patent GB-1118021-A (GB)
Title: Improvements in or relating to periscopes
Inventor: STRANG JOHN MARTIN
IPC: G02B23/08
Filed: 1952-08-05
Abstract: 1,118,021. Sextants. BARR & STROUD Ltd. June 15, 1953 [Aug. 5, 1952], No. 19635/52. Heading G1F. [Also in Division G2] The periscope-sextant 14 of a submarine is provided with means for measuring the angle between a distant object and a datum mark near the observer, the means comprising coarse mechanical adjustment to bring the object into the field of view and fine relative adjustment between the datum mark (or its image) and the image of the object. The normal view from the periscope is through a window 13 with optical systems 19, 20, 23a and 28, 30, 29 swung aside, angles being measured by view through a second window 21. To bring a star or other distant object into view a prism 24 is rotated in precise steps about an axis perpendicular to the plane of Fig. 2, by means of a Maltese-cross mechanism, Fig. 3, or a stepped cam, Fig. 4 (not shown), to avoid backlash error in the long shaft 33. Fine adjustment between steps is provided by movement of the datum mark, a bubble 29, or of the lens 30, Fig. 9 (not shown) or of an additional prism 46 Fig. 10. To allow for distortion of the periscope, graticules may be included in the upper and lower optical systems, with zero adjustment of the datum mark, Fig. 11 (not shown). The periscope may be arranged with normal view (without system 19, 20, 23a) through the angle measuring window.
Patent GB-579893-A (GB)
Title: Improvements in or relating to electron discharge devices
IPC: H01J25/74
Filed: 1943-11-24
Abstract: 579,893. Electron oscillators. BARFORD, N. C. Nov. 24, 1943, No. 19666. [Class 39 (i)] Electron oscillators comprise two resonators 4, 5 in juxta-position, and having apertures 7, 8, 9 for the passage of an electron beam from the cathode 3 to the collector which may be a separate electrode 6 or the blanked-off aperture 9. The first resonator 4 is formed to function in the manner described in Specification 528,041 so as to effect velocity and density modulation of the beam in its passage therethrough. The second resonator 5 is tuned to the frequency of the resonator 4 or a harmonic thereof and may be excited by the passage of the density modulated beam through a narrow gap between the apertures 8, 9. Alternatively, the second resonator may be formed to function in the same manner as the first and may be followed by one or more further resonators.
Patent GB-516683-A (GB)
Title: Improvements in or relating to furnaces
IPC: C21D9/00
Filed: 1938-07-04
Abstract: 516,683. Conveyers. DODERER, W. July 4, 1938, No. 19761. [Class 78 (i)] [Also in Group XII] Sheet material to be annealed is conveyed by rollers 14 past hanging flaps 13 of an air-lock chamber 5 at a furnace entrance and/or exit, to or from a walking beam within, the moving beams 4 projecting within the rollers as shown. Each lowering of. the beams 4 depresses a counterpoised lever 26 mounted on an axle 25 and causes a pawl 28 also mounted thereon to rotate a ratchet 29, the pawl slipping over the ratchet on raising of the beam. The beams 4 are in lowered position when contacts 31, 32 in an electric motor circuit touch, and only then are the rollers driven by the motor 18 and chain 16, their speed being such that the sheets pass from position a to position b while the beam is lowered. In position b the sheets press against a spring controlled depressible rod 19, breaking the circuit and stopping the rollers, the sheets being then conveyed by the walking beam till the contacts 31, 32 again touch, close packing resulting from the greater speed of the rollers. The sheets may be passed into and through the furnace in the same direction by replacing the rollers by wheels located within and parallel to the moving beams 4.
Patent GB-478270-A (GB)
Title: Apparatus for effecting contacting actions or chemical transformations in fluids
IPC: B01J8/02
Filed: 1936-07-17
Abstract: <PICT:0478270/III/1> <PICT:0478270/III/2> Converters having a plurality of conduits 1, 9 embedded in a contact mass 4 and wherein one set of conduits 1 are attached to a tube plate at only one end 5 are provided with a transverse grid-like member 6 to maintain these conduits in position.  The grid may have apertures 7 in which the free-ended conduits fit snugly, and larger apertures 8 through which the other conduits pass leaving space for the passage of contact material charged through openings 13.  It may be spaced away from both tube plates or it may be adjacent to one of them and constitute a support for it.  In the latter case this tube plate may be made in sections 20, Fig. 3 to each of which a number of the second set of conduits 9 may be rigidly affixed before the sections are fitted into place.  In assembling the converter the grid is used to maintain the conduits 1 in position while the sections 20 bearing conduits 9 are lowered into position, the lower ends of these conduits being fitted into guides 10 as described in Specification 426,642. The conduits may be as described in Specification 414,779. Specification 471,424 also is referred to.
Patent GB-204167-A (GB)
Title: Improvements in electric power transmission systems
IPC: H01B7/26
Filed: 1922-07-20
Abstract: 204,167. Taylor, A. M. July 20, 1922. Drawings to Specification. Polyphase systems; protective arrangements.- Electric transmission systems, involving large capacitances in the cables, are provided at intervals with reactances connected in parallel and designed to produce resonance at full load and. adapted to be varied in value upon a diminution of the load to avoid resonance under the condition of working. The values of the reactances may be varied by short-circuiting a small reactance in series with the main reactance, or bv cutting-in and cutting-out subsidiary reactances connected in parallel with the main reactances. The values of reactances may be reduced by supplying capacity currents from the central core of the cable to the outer cores of the cables through transformers which also supply a local load circuit. The application of the invention to the system described in Specification 170,619 is referred to. Specification 195,429 also is referred to.
Patent GB-501958-A (GB)
Title: Improvements in threading dies for use on automatic screw machines
IPC: B23G5/12
Filed: 1938-07-05
Abstract: 501,958. Screwing die-heads. FAIRWEATHER, H. G. C. (National Acme Co.) July 5, 1938, No. 19878. [Class 83 (iii)] A screwing die-bead has a slidable member for moving the chasers positively in both directions and means for locking the member, both mounted on a carrier in the head, and a movable hood directly engaging the locking means so as to release them by depression thereof. The die-head comprises a body 2 having a shank 7 and an enlargement 3 provided with radial T-slots 4 for guiding radially movable carriers for circular chasers. The carriers are moved by bevelled tongues 18 on axial plungers 16 attached to a slidable ring 15 which is pressed rearwardly by springs 20 but is locked in the cutting position by segmental cams 11 lying in recesses in a sleeve or carrier 13 and pressed radially outwards by tangential springs 14. In operation, when the desired length of thread has been cut, farther motion of an outer cap 8 is prevented by the stoppage of a yoke engaging a groove 9 therein and the remainder of the head continues its screwing feed until an internal bevelled ring 10 on the cap rides on bevelled surfaces 12 on the cams 11 and pushes these radially inwards, thus removing the abutment from the ring 15 and allowing the springs 20 to push back the ring and cap and open the head. The chasers are re-set when the head approaches its axially withdrawn position by stopping further motion of the yoke and the cap 8, whereupon the cap pushes forward the ring 15 to closed position and then rides off the cams 11 to allow them to expand behind the, ring. Radial screws 22 in the ring 15 lie in slots 21 in the cap so that the latter may engage the screws to open the head positively if the springs 20 should be unable to start the opening. Springs 13<1> press the sleeve 13 rearwardly against a nut 24 screwing on the shank 7 and capable of adjustment to determine the cutting size of the head. A plate 25 on the nut 24 limits the rearward movement of the cap and ring 15 and normally prevents disengagement of the plungers 16 from the chaser carriers, but.is capable of being moved rearwardly by means of a slot 26 to allow further movement of the ring 15 for changing the chasers for grinding &c. Bushings and guides.-A work guide 28 is attached internally to the body 2 by a bayonet slot and pin 27 and is provided with tongues 29 projecting between the chasers for supporting the work when the die-head is open.
Patent GB-147888-A (GB)
Title: Improvements in driving gear for tractors and similar vehicles
IPC: B62D11/08
Filed: 1920-07-09
Abstract: 147,888. Ostertag, F. Dec. 12, 1918, [Convention date]. Change-speed and reversing gearing; independent driving on opposite sides.-The tracks or road wheels of endless-track and other tractors are driven through two sets of friction-disk variable gearing which are independently controlled for steering. The engine-driven shaft 3 carries slidable friction rollers 6 engaging friction disks 14, which drive the road wheels or track sprockets through bevel-gearing 16 and spur-gearing 19. The friction-disk shafts are moved axially to disengage the friction gear by tension members 31 operated independently for steering or together for stopping. The friction rollers are moved simultaneously to vary the speed and direction of driving by a hand-operated screw-shaft 9. The Specification as open to inspection under Sect. 91 (3) (a) states that the friction rollers may be independently moved along their shafts so as to drive at different speeds for steering. This subject-matter does not appear in the Specification as accepted.
Patent GB-320129-A (GB)
Title: Improvements in apparatus for printing advertisements on the roadway
IPC: G09F19/22
Filed: 1928-07-10
Abstract: 320,129. Clayton, G. E. July 10, 1928. Signs.-Relates to a type cleaning and inking apparatus for use with vehicle wheels provided with raised type for printing advertisements on roadways. The cleaning brush 8 and inking roller 4 are carried on a common axis 6 and held against the vehicle wheel by a spring 9. By depressing the arm 10, the brush and roller are simultaneously raised, through the action of the wedge 11, into their inoperative position.