baber/WOPTO huggingface dataset:
Patent GB-832744-A (GB)
Title: Improvements in and relating to the control of movable parts
IPC: B62D1/26
Filed: 1957-02-04
Abstract: 832,744. Guiding vehicles. COMPAGNIE GENERALE DES ETABLISSEMENTS MICHELIN. Feb. 4, 1957 [Feb. 3, 1956], No. 3844/57. Class 79(5) [Also in Groups XXX and XXXVII] In a vehicle having a steering control member or plough 1, Fig. 1A, movable into or out of engagement with a fixed guide track 8, the plough 1 is automatically raised to the inoperative position while the vehicle is travelling by a motor 25 which is controlled through a projecting means on the vehicle engaging an actuating member fixed at the required location along the track. In one example the electric motor 25 raises or lowers the plough 1 through a worm and worm gear 26, 26<SP>1</SP>, lever 27 and rod 29 and is controlled from a double pole switch (see Group XXXVII) on a rocking shaft attached to the tramcar roof and carrying push rods which are engaged by ramps along the track. A double limit switch 41, 41<SP>1</SP> attached to the lever 27 automatically cuts off the supply at opposite ends of the stroke. A lost motion connection 28, 60 permits the plough 1 to follow unevenness in the track. The electrical system may be replaced by an equivalent pneumatic motor and valve system. In one example the plough 1, Fig. 2, is lifted to its inoperative position by a pneumatic piston 45 through a connecting rod 46. Control of the piston is obtained through a valve 44 which is rotated to supply compressed air to the cylinder 43 by a push rod 49 engaged by a ramp (not shown) along the track and coupled to the valve through a transverse shaft 69 and linkage 72, 75. A spring 82 restores the valve 44 to exhaust the cylinder 43 after the shoe has been locked in the raised position by a latch 53 described in Specification 832,743. Specifications 832,741 and 832,742 also are referred to.
Patent GB-965944-A (GB)
Title: An apparatus for the manufacture of plastics
IPC: B29B7/60
Filed: 1962-02-01
Abstract: 965,944. Polymerization apparatus. FARBENFABRIKEN BAYER A.G. Feb. 1, 1962 [Feb. 3, 1961], No. 3898/62. Headings B1C and B1X. An apparatus for the manufacture of plastics, for example polyurethane foams, from separate components, comprises high pressure pumps 3, Fig. 1, connected through conveyer pipes 4, 6 to injection nozzles opening into a common mixing chamber 5, and a liquid reservoir 1 connected to each of said conveyer pipes, said reservoir including a piston 21, Fig. 2, arranged to be freely movable in a bore in the reservoir housing, a spring 23 attached to the piston and a stop bolt 24 in the longitudinal axis of said piston at the end near the spring and disposed at some distance from the end of the piston. If when the apparatus is started an excess of component occurs in pipe 4, the piston is displaced from its starting position and moves toward the stop bolt, the position of which may be adjusted by micrometer screw 25. Thus initial variations in component ratio, viscosity and compressibility of the components, rates of discharge from the mixing chamber of the product, and volume of the conveyer pipes and output tolerances are corrected.
Patent GB-138997-A (GB)
Title: Improvements in and connected with means for securing the ends of cinematograph films
IPC: G03D15/04
Filed: 1919-02-19
Abstract: 138,997. Hindmarsh, P. Feb. 19, 1919. Apparatus for developing and drying roll films. -A device for securing the ends of kinematograph films to a drying-drum, developing-frame, or other apparatus employed in the various stages of production, comprises a plate 2 formed with guard loops or guides and with projections 4 to engage with the film perforations, a frame member 5 integral therewith and formed with hooked extremities 6 to engage the batten 1 of the drying- drum &c., and a similar frame member 7 pivoted to the members 5; a spring 8 coiled around the pivot pin causes the hooked members 5, 7 to grip the batten &c. 1.
Patent GB-285085-A (GB)
Title: Improvements in surface condensers
IPC: F28B1/02
Filed: 1928-02-09
Abstract: 285,085. Metropolitan-Vickers Electrical Co., Ltd., (Assignees of Morgan. D. W. R.). Feb. 11, 1927, [Convention date]. Surface condensers.- In a surface condenser in which the cooling tubes 17 are arranged in an annular belt, the cooling water entering the header 15 through a central portion 32 first passes down a central passage 19 to the header 16 before flowing on its return path over the tubes 17, and this cools an offtake trunk 29 through which the incondensable gases are withdrawn. The trunk 29 is constructed in three portions to which are connected by expansion joints 30 circular manifolds having radially disposed passages 28 and air inlets 27. The tubes 17 are supported on tube plates 13, 14 and intermediate plates 21, 22, the trunk 19 being also supported on tubes 13, 14, expansion being allowed by a stuffing box 20<1>. Modifications are described in which the trunk 19 is situated exteriorly of the cooling tubes and in which the construction is adapted to a condenser of the down flow type.
Patent GB-1262298-A (GB)
Title: Improvements in or relating to calculating apparatus
IPC: G06F17/17
Filed: 1969-01-24
Abstract: 1,262,298. Extrapolation using the Lagrange interpolation polynomial. SABA SCHWARZWALDER APPARATE-BAU-ANSTALT AUGUST SCHWER SOHNE G.m.b.H. 24 Jan., 1969 [27 Jan., 1968], No. 4178/69. Heading G4A. In order to estimate the value of a function f(t) when t = t G  + nT from its values when t= t G  - rT, r=0, 1, 2, . . . M, the following operations are performed:- (a) the M+ 1 known values are used to construct a first Lagrange interpolation polynomial, L 1 (t) (a polynomial of degree M passing through the M + 1 known points) which is used to produce an estimated value of f(t) when t=t G +T, (b) the estimated value of f(t) when t=t G +T together with the immediately preceding M known values when t=t G -rT,r=0, 1, 2,... M- 1, are used to construct a second Lagrange polynomial from which a second estimated value for f(t), namely when t=t G +2T, is produced, (c) the two estimated values of f(t) when t = t G  +rT, r= 1, 2, together with the immediately preceding M - 1 known values when t= t G  -rT, r=0, 1, 2, . . . M - 2, are used in a similar manner to produce a third estimated value of f(t), namely when t=t G +3T, (d) the above process is repeated as many times as is necessary until an estimated value of f(t) when t=t G  +nT is produced. Since in this method each extrapolation involves the same number M + 1 of equally spaced by T known, or pseudo-known values, and the required extrapolation value is equally spaced beyond the last known or pseudo-known value, the Lagrange interpolation polynomial giving the required extrapolated value reduces to the form for all positive integrals s, in which the same set of coefficients C r , r = 0, 1, 2, . . . M, are used in each extrapolation. Therefore, in the calculating apparatus, it is only necessary to store the precalculated coefficients C r , r=0, 1, 2, . . . M. These are then multiplied by the appropriate values of the set of M + 1 values of f(t) currently being regarded as known values, and summed to produce a further value. In the actual equipment that is outlined, which operates in real time, values in the future are estimated, stored and compared with the actual values as they occur, too large a difference initiating an alarm.
Patent GB-562454-A (GB)
Title: Improvements in or relating to cigarette holders and tobacco pipes
IPC: A24F7/04
Filed: 1943-03-18
Abstract: 562,454. Tobacco pipes; cigarette holders. REVELS, D. H. March 18, 1943, No. 4380. [Class 130] A mouthpiece a serving as a cigarette holder or as the mouthpiece of a pipe is adapted to fit a pipe stem or a tube c, Fig. 7, adapted to be filled with tobacco or to enclose a cigarette and retain the ash ; the mouthpiece being fitted with a filtering device d slidable for ejecting a cigarette end from the holder. The device d is a small vulcanite cylinder open at one end, perforated at the other, and containing granulated filtering material such as charcoal held in position by a cottonwool plug, and is provided with pins e slidable in slots f in the holder.
Patent GB-287159-A (GB)
Title: Improvement in bottle closure
IPC: B65D39/02
Filed: 1928-02-11
Abstract: 287,159. Kleen Kap Corporation, (Assignees of Wallace. H. de). March 18, 1927, [Convention date]. Capsules and like closures.- A bottle closure comprises a single plane circular body 6a of fibrous material having a convex periphery 6', the body being formed with concentric creases 6<b>, 6<c> in its opposite faces. One of the creases has a diameter equal to that of the recess 4 in the bottle mouth whilst the other is disposed between the first crease and the convex margin. The creases are in the form of V-shaped grooves, the inner one 6<c> being on the upper face of the disc, to adapt it bend upwards at the point x, and the other one 6<b> on the lower face at the commencement of the convex portion 6<1>. To adapt the disc for contraction into the recess 4, tapering radial creases are provided which intersect the outer crease 6<b> and connect with and terminate at the inner crease 6<c>. An upwardly extending convex ring 6<d> strengthens the body 6<a> and prevents the closures from interlocking when they are stacked.
Patent GB-758915-A (GB)
Title: Improvements in luminous electric discharge bodies
IPC: H01J61/92
Filed: 1953-02-17
Abstract: 758,915. Discharge lamps; luminescent materials. ETZKORN, W. V. Feb. 17, 1953, No. 4479/53. Class 39 (1). [Also in Group XVIII] A body or tube of a light-transmitting plastic has separated and unconnected volumes of gas confined therein which become luminous under the action of electrical high-frequency means, the body or tube being of uniform light transmittance throughout its length and being flexible throughout its length to form desired designs. In the construction shown in Fig. 1 the body 1 in the form of a hollow tube is made of a light transmitting flexible plastic such as Tygon or Lucite coated on the inside or outside with a phosphor 2 and containing gas-filled hollow beads 3 which become luminous under the action of the electric field created by the antennµ 6, 7 and R.F. generator 4. The body 1 may be solid and can be replaced by a solid or hollow bar, strip, pipe, &c. A phosphor may be embedded in the material of the body. The antennµ 6, 7 can run through the plastic body and broken segments of wire can be moulded into it which may be butted against the ends of the beads. In a modification, small electrodes may be placed in the beads. The beads can be replaced by cavities 11 in the plastic body, as shown in Fig. 10, the cavities being filled with gas by assembling the component parts of the body in an appropriate atmosphere. Alternatively a flexible perforated strip 12, Fig. 11, is sandwiched between two solid flexible strips 13 in an appropriate atmosphere. The strips can be cut up into the form of letters or into circular, triangular, rectangular or lens-like shapes. In the construction shown in Fig. 12, a panel is made of two sheets forming the pockets 14 and a longitudinal passage 15 is connected with the pockets by branch passages 16 for exhausting and filling the pockets, after which the panel part containing the passage 15 is cut off by heated shears which cause the material of the panel to fuse and close the pockets.
Patent GB-857318-A (GB)
Title: Method for poison override in nuclear reactors
IPC: G21C7/34
Filed: 1959-02-10
Abstract: 857,318. Controlling nuclear reactors. ATOMIC ENERGY OF CANADA Ltd. Feb. 10, 1959 [March 5, 1958], No. 4700/59. Class 39(4). A nuclear reactor has a reserve of highly enriched fuel to overcome Xe<SP>135</SP> poisoning when starting up after shutdown. Plates 5 of an alloy of U<SP>235</SP>, U<SP>233</SP> or Pu<SP>239</SP> with Al, Mg or Zr can be lowered in guides 6 into the centre of a reactor, and then withdrawn when the reactor starts up. The plates have a total excess reactivity of about 1%. They are cooled by D 2 O which also acts as moderator ; the reactor coolant is also D 2 O and the fuel is natural or slightly enriched uranium. The reactor is controlled by varying the moderator level and by partial insertion of the plates 5 for a short time, position indicators 11 being provided. The operating mechanism is housed in a gas tight space containing He.
Patent GB-988597-A (GB)
Title: Improvements in or relating to cinematographic cameras
IPC: G03B7/085
Filed: 1962-02-08
Abstract: 988,597. Cinematograph camera with automatic exposure control. EASTMAN KODAK CO. Feb. 8,1962 [Feb. 8,1961], No. 4862/62. Heading G2E. In a cinematograph camera having an automatic photo-electric exposure regulating system, at a predetermined low scene brightness, a reflecting member coupled to a control member adjusted as a function of scene brightness reflects into the viewfinder a beam of light which is modulated by a cyclically moving member to produce a visible flicker in the viewfinder. A second reflecting member may be coupled to the control member and brought into operative position for scenes of very high brightness. As shown, a photo-cell 34 controls the exposure by rotating a diaphragm disc 22 having a tear drop aperture in line with the axis of the camera objective 12 and carrying two mirrors 40,41 which are differently coloured to distinguish between low and high scene brightness. The light modulating member is formed by the edge of the exposure shutter 18 which may be merely a disc with a 120 degree cut out or may be a disc 44 as shown in Fig. 4 rotated at one -third of the frame frequency, each segmental aperture 46 exposing one film frame while the concentric slot 48 passes across the axis of the signal aperture 38 to produce a more pronounced flicker.
Patent GB-234754-A (GB)
Title: Improvements in garment presses
IPC: D06F71/04
Filed: 1925-02-24
Abstract: 234,754. British-American Laundry Machinery Co., Ltd., (American Laundry Machinery Co.). Feb. 24, 1925. Ironing-machines with pressing action only. - The closing of a power - operated garment - press comprises two distinct phases, in the first of which the head is moved substantially horizontally so as to register with the buck, but out of contact therewith, the head being moved vertically downward into pressure-applying position in the second phase. The opening cycle comprises the reverse of these phases. The head 3 is carried by a bifurcated lever 4 the lower ends of which are connected by a cross-pin 6, which has a limited vertical motion in slots 7 in the machine frame 1, a spring 8, anchored at its upper end to a stationary member 10, tending to keep the lever and head in an elevated position. Movement of the lever is derived from a motor 12 which drives a crankshaft 18 so that the head is moved from the open position A to the fully-closed position C through the intermediate position B in which the pin 6 is forced to the bottom of the slots 7. A pad 23 on the lever 4 co-acts with a roller 22 on the stationary frame to limit the horizontal movement of the head. A band brake for the driving shaft is operated by an electromagnet included in the motor-circuit, this circuit being made by the operator from a push-button 50 and relay, not shown, and broken by an adjustable commutator at the correct phase of the cycle. A guard 60 is pivoted to the bifurcated lever, a pin 64, carried by a rearwardly extending arm 63, engaging a stationary cam-track 66 to move the guard into and out of effective position.
Patent GB-839681-A (GB)
Title: Improvements in or relating to electron discharge devices
IPC: H01J31/50
Filed: 1959-02-16
Abstract: 839,681. Image converter tubes. RAULAND CORPORATION. Feb. 16, 1959 [Feb. 14, 1958; March 31, 1958 (2); June 23, 1958; Oct. 20, 1958], No. 5262/59. Class 39(1). An image converter comprises an evacuated envelope containing a photoelectric cathode 14, a fluorescent screen 15a and a focusing electrode system 16, 19 for forming at the screen an image of the distribution of the electrons emitted by the photocathode under the influence of incident radiation, one element of the electrode system being constituted by a coating 19 formed on the inner wall of the envelope and being at least in part composed of a material capable of acting as a getter for a component of the cathode. As shown the coating 19 comprises a base layer of aluminium and an overlayer 20 of discrete particles of iron, copper, graphite or semiconductive iron or chronium oxide, all acting as getters for the caesium of the photocathode. In the embodiment shown in Fig. 2, a conductive aluminium layer 19 is extended towards the screen 15a by a layer 26 of conductive chromic sesquioxide or iron oxide containing as a binder, in the concentration range 100-600 micrograins per square inch, titanium dioxide which acts as the caesium getter. The cathode comprises a layer 14a of phosphor responsive to incident radiation of one wavelength and emitting a corresponding radiation of another wavelength, the phosphor being supported on a layer 14b of aluminium which is etched to improve its adhesion and reflectivity. A barrier layer 14c is formed by evaporating aluminium not exceeding 30 Angstrom units thick on to the phosphor layer, heating the aluminium layer at less than 50% relative humidity to a temperature not exceeding 350‹C. to form a tightly packed oxide layer and repeating the evaporating and heating steps three times to increase the oxide layer to at least 80 Angstrom units.
Patent GB-1348348-A (GB)
Title: Circularband brake for a rotary drum
IPC: F16D49/12
Filed: 1972-02-04
Abstract: 1348348 Band brakes; drum rotation in either direction A BRUSSELLE 4 Feb 1972 [4 Feb 1971] 5406/72 Addition to 1209166 Heading F2E A circular band brake assembly for a rotating drum comprises a drum rim and a circular band provided with friction surfaces, the tightening and loosening of the band being effected by a control and regulating mechanism which is connected to each end of the band, the mechanism acting on the beginning of the band (for a particular direction of rotation) where there is the greatest traction force, whatever the direction of rotation of the drum; preferably the band is connected to a fixed frame supporting the drum axle at a single point. As shown, a rim 5, integral with a cable drum 3, is surrounded by a lined brake band 6, one end of which is provided with a "shoe" 11 having pivoted to it a stop member 8. The other end of band 6 has a similar "shoe" and stop member 11a and 15 respectively, stop members 8 and 15 being slidable on a control rod 17 attached to a piston 19. Between stop members 8, 15, control rod 17 passes through a linking member 10 which is pivoted at 13 to the piston 12 of a torque-measuring cylinder 14. For clockwise rotation, Fig. 1, the drag exerted on the band 6 urges stop 8 into contact with the upper surface of member 10, leaving a clearance A (for the degree of brake application shown) between the lower surface of member 10 and stop 15. (Stop 15 is retained by nut 18.) Spring washers 21 force piston 19 and rod 17 upwards to increase brake application when fluid pressure is relieved at 22, while brake release is effected by feeding pressure fluid at 22. Thus brake application and release are associated with the "beginning" of the band for the time being, namely at "shoe" 11a, while the other end of the band is temporarily anchored at 10, 12, 14. For counterclockwise rotation, Fig. 3, stop 15 is urged against the lower surface of member 10, the part of the band attached to shoe 11 is now the "beginning" of the band, and it is the cylinder structure 20 which is forced downwards about rod 17 on relief of pressure at 22 to increase the brake application, and upwards by pressure application to release the brake.
Patent GB-764811-A (GB)
Title: Electrical slip coupling device
IPC: H02K49/04
Filed: 1955-02-24
Abstract: 764,811. Electromagnetic couplings. COHEN, E., and ROTH, S. Feb. 24, 1955 [Feb. 24, 1954; Oct. 1, 1954; Oct. 27, 1954], No. 5550/55. Class 35. An electromagnetic coupling comprises a magnetic cylinder 17 in the annular gap between an inner rotary magnetic member 16 and an outer fixed magnetic member 10. The outer member is split into two parts 10a, 10b enclosing a field coil 19 while the rotor is provided with teeth 16a producing a rotating flux. Alternatively these inner and outer members may be interchanged. The cylinder is divided into two parts 17b spaced by a non-magnetic sleeve 17a to prevent axial leakage of flux, or, in a modified form, it may be a unit with a reduced and slotted middle part. A combined clutch and brake employing the same principle is described. The outer, fixed member carries two selectively energized coils, the former being situated in a smooth part of the rotor member opposite a toothed part of the driven rotor to produce driving coupling, and the latter being in a toothed part of the stator opposite a smooth part of the rotor to produce braking action. Alternatively the outer member may rotate and the inner one be fixed. By using both coils simultaneously, a drive of accurately defined speed is produced.
Patent GB-305383-A (GB)
Title: An improved press for use in the manufacture of earthenware covers for teapots and the like
IPC: B28B7/00
Filed: 1928-02-22
Abstract: 305,383. Coulter, W. Feb. 22, 1928. Moulding hollow-ware; pressing plungers and dies.-Tea-pot lids and like earthenware articles are moulded between a counterweighted lower die a and a vertically-moving upper die f furnished with laterally-sliding knob-shaping members f<2> advanced by cams g<1> against the action of springs f<6> during the descent of the upper die. After the pressing operation, the counterweight raises the lower die in the cylinder b so that it follows the retracting movement of the upper die until the knob-forming members have been withdrawn, but in some cases springs may be used instead of a counterweight. The upper die is raised and lowered by screw mechanism and carries an interchangeable member f<4> for shaping the top of the knob. The central part d of the lower die can be raised by a pedal to present the moulded article for delivery. The cams g<1> may be adjustable. An air vent a<4> admits air through the valve a<5> during the separation of the dies.
Patent GB-1070642-A (GB)
Title: Improvements in and relating to the production of unsaturated carboxylic acids or anhydrides thereof
Inventor: MARSHALL DENNIS
IPC: C07C51/25
Filed: 1963-02-11
Abstract: Maleic acid or maleic anhydride are obtained by the partial oxidation of a hydrocarbon having at least 4 carbon atoms by bringing a mixture of the hydrocarbon in the vapour phase and a gas containing free oxygen into contact at elevated temperature and for a period of at most a few seconds with a catalyst comprising vanadium and phosphorus pentoxides on a support, the support having a surface area not exceeding 1 sq. metre/g.  The molar ratio of vanadium pentoxide to phosphorus pentoxide is preferably within the range 1 : 2 to 3 : 2 and the oxidation is generally effected at 250-550 DEG  C. employing a time of contact of, e.g., 5 seconds.  The support may be alumina, silica, a ceramic material or silicon carbide and the catalyst may be prepared, for example, by impregnating the support with a solution of vanadyl chloride and phosphoric acid.  In the examples, the hydrocarbons oxidized are 2-butene and butadiene.