baber/WOPTO huggingface dataset:
Patent GB-1426753-A (GB)
Title: Apparatus for measuring speed direction of movement or position of an object
IPC: G01C3/32
Filed: 1973-02-15
Abstract: 1426753 Determining movement photoelectrically ERNST LEITZ GmbH 15 Feb 1973 [6 March 1972] 7513/73 Heading H4D [Also in Division G1] In a device for measuring a property of movement of an object 1 relative to a grating 5 provided with elemental areas which have different colour properties in adjacent lines, the radiation from a source 2 which passes through the object 1 and the grating 5 is split into two components by chromatic beam splitting means 8, the components being received by a photo-electric detector(s) whose output(s) can be processed to obtain the desired property of movement. The grating can be in the form of stripes, Fig. 1, alternate stripes having the same colour property, or, for two dimensional movement, a chess board type of pattern, Fig. la, not shown, may be employed with the grating being moved in one co-ordinate direction of the pattern. The "chess board" type of pattern may be modified, Fig. 2, by including in each "square" a particular amount (see dotted and solid lines) of each of the two colour properties, the amounts being chosen so that only the "horizontal" lines of squares of one colour property (dotted) appear with good contrast and only the "vertical" columns of squares of the other colour appear with good contrast. The grating does not need to be moved with this pattern. Finally, as shown in Fig. 3a (Fig. 3, not shown, deals with the apparatus) the grating may consist of squares subdivided into triangles, each triangle having a different colour property and the squares are arranged so that four associated photo-electric detectors (and associated chromatic beam splitters) are able to produce two "push-pull" type signals representative of the property of movement in the two co-ordinate directions.
Patent GB-569386-A (GB)
Title: Improvements in or relating to methods of preparing leather and to leather produced thereby
IPC: C14C3/18
Filed: 1943-05-13
Abstract: 569,386. Making leather. AMERICAN CYANAMID CO. May 13, 1943, No. 7655. Convention date, July 25, 1942. [Class 76] Hides and skins are tanned by impregnation with an aqueous solution or dispersion of a water-soluble methylol melamine, which preferably remains soluble in the presence of sodium chloride. 3-10 per cent by weight of the drained and pickled skin of the tanning agent may be used at a pH value of 3-4.5, the pH being adjusted if necessary, as when using a bated skin, by means of sulphuric, hydrochloric or acetic acid. The tanned skins may be fat liquored with a sulphonated vegetable oil, and in one example are finally pigmented with a mixture of colloidal clay, lithopone, Italian talc and white clay. In the examples, the tanning agent is added in stages to a sodium chloride solution with which the skin has been drummed, but in the case of a skin bated with an enzyme bate not followed by preliminary pickling in sodium chloride-sulphuric acid solution, the pH value needs considerable adjustment. Disodium phosphate is also added in the example relating to bated skins. Methylol melamine for use inthe process may be prepared by boiling 1 mol. melamine with 3.5 mols. aqueous 30 per cent formaldehyde at pH 9.0 for 20 mins., cooling and separating and drying the crystals obtained.
Patent GB-224796-A (GB)
Title: Improvements in or relating to apparatus for determining the data for the laying of guns indirectly
IPC: F41G3/14
Filed: 1924-03-26
Abstract: 224,796. Kooiman, A. March 26, 1924. Logarithmic calculators; plane-trigonometry calculators.-Apparatus for use in determining the data for the laying of guns indirectly comprises three relatively movable graduated concentric rings, a graduated ruler attached to one of the rings and forming with other graduated members the sides of a parallelogram, and a fifth graduated ruler rotatably mounted on the common centre and attached to another of the rings. For laying guns directly a known form of apparatus is employed comprising, as shown in Fig. 2, a disc B graduated logarithmically to represent ranges, a relatively rotatable ring A graduated logarithmically to represent the sines of the angles from 4‹ to 90‹ and from 90‹ to 176‹, and two cursors C, D. The cursor C is provided with a correction pointer for taking into account alternation of range during the setting time and the time of flight. According to the present invention, and for indirect laying, the co-ordinates of the stations 2, 3, and of one of the guns 4, Fig. 4, must be accurately triangulated, the angle measuring devices at 2, 3, adjusted so that the lines 0‹-180‹ coincide, and the line 0‹-180‹ of the graduated ring at the gun position must pass through the axis of the device at 3. The apparatus comprises three graduated rings a, b, c, graduated rulers d, g attached to the rings c. b respectively, and graduated links j, k, p. The ruler d is grooved to receive a member that carries a pin e, the member serving as a vernier adjustable by means of a micrometer screw f. The ruler g has grooves in which are adapted to slide pins h, r, to either of which can be connected the link p. This link is provided at its other end with a pin n connected with the link k on which slides a member having a pin l for connection with the link j pivoted on the common centre m. In operation the pin h is first set so that the distance mh represents the base length b<2>, Fig. 4, and the pin l is moved so that the ruler g and links j, k, p, form a parallelogram. The ring a is then turned so that the angle of its line 0‹-180‹ and that of the ring b correspond to the angle, a, Fig. 4, and the ruler d and the pin e are set to the azimuth and range of the target from the station 3. The link p is then placed against the pin e. On the ring b at the ruler d the base angle 534 is read off and on the ring c at the ruler j the apex angle 354. The range 45, Fig. 4, can then be calculated by the apparatus shown in Fig. 2, or it can be read off directly by graduating the link p and the angle a obtained at the link j on the ring b. The correction in azimuth for the lateral movement of the target can be calculated from the difference between two successive values of the angle a and the correction for drift and wind obtained from the usual tables.
Patent GB-886694-A (GB)
Title: Method and mechanism for squaring-up-boxes
IPC: B31B5/74
Filed: 1959-05-06
Abstract: 886,694. Box making machines. INTERNATIONAL PAPER BOX MACHINE CO. March 6, 1959 [April 21, 1958], No. 7823/59. Class 18. A machine for squaring up folded collapsed boxes before the adhesive has set comprises conveyer means and a trueing member that pushes each box against a yielding member that engages the forward end of each box. The machine comprises a folding and glueing zone 20, from which the boxes 23 are delivered in spaced relation after the action of folding belts by delivery rolls 62, 63, and a stacking zone 21 in which the boxes are shingled on an apron 71 moving more slowly than the delivery means of section 20. The apron 71 and an upper belt 73 grip and traverse the boxes and an adjustable roll 85 alters the pressure of the nip. A roll 72 at the rearward end of the apron is also adjustable. A roll 107 deflects the trailing edge of each blank on to the apron. The trueing member 98 is mounted on arms 96 moved to the left by a cam 103 and moved to the right by a spring to push the boxes against the yielding member 135. This member consists of four spring urged lugs 138-141 on a rotatable mounting, each lug engaging in turn the leading edge of a box entering the nip of the belt 73 and the apron 71. The resistance of the lugs to the motion of the boxes is provided by a spring loaded cam follower 158 engaging a cam 152.
Patent GB-1391433-A (GB)
Title: Propulsive tracks
IPC: B65G35/00
Filed: 1971-03-24
Abstract: 1391433 Conveyers J J SPILLMAN 22 March 1972 [24 March 1971 10 June 1971 6 Aug 1971] 7875/71 19813/71 and 37107/71 Heading B8A In a conveyer of the kind described in Specification 1,053,150, in which an inflatable member 20 supports and transmits a driving force to a load 28, the latter is supported on the member 20 by a series of rigid elongated members 24 which lie transversely of the member 20. As shown, the latter is in the form of two transversely spaced inflatable tubes 21, 22. The members 24 rest on the tubes 21, 22, via the intermediary of a thin strong upper sheet 26 having a soft lower backing 27, e.g. of polyurethane foam. In a modification (Fig. 5, not shown), the members 24 may be wider at one end so as to provide for curved sections of conveyance. The tubes 21, 22, may be replaced by a single tube (Fig. 6, not shown). Instead of one or more inflatable tubes there may be a pressure chamber (Fig. 7) having rigid sides and a rigid base. The upper ends of the rigid sides enclose flexible sides 52 the tops of which are sealed by a flexible backing member 51 having slots 5. In another arrangement (Figs. 8-10, not shown), the members 24 of Figs. 3 and 4 are replaced by rods (63). These carry rollers (64) at each end which support the load (67) either directly, or via the intermediary of a pallet (68). Each rod (63) is confined against longitudinal movement by each of its ends being located in a vertical slot (65) of a respective side frame member. In a final variation (Figs. 11 and 12, not shown), the load is supported on rollers (77) which are connected by longitudinal links (79) to form a chain. The rollers bear on an elongated flexible member (75). The chain of rollers may be endless.
Patent GB-985892-A (GB)
Title: Fail-safe valve system for controlling fluid flow
IPC: G05D7/06
Filed: 1963-02-27
Abstract: 985,892. Valves. SCULLY SIGNAL CO. Feb. 27, 1963 [Sept. 28, 1962], No. 7918/63. Heading F2V. [Also in Division G3] A fail-safe system has an input detector 2, Fig. 1, e.g. comprising a light, heat, force, pressure, current or voltage sensing element or an electro-mechanical transducer, which transmits a principal electrical signal to a receiving, amplifying or transmission system 4 via a switch 3, a contactor I-C, and a switch S1. A relay 6 which is connected to the output from the system 4 is provided with an armature 11 that controls the switch 3, and an oscillating valve-closure member 15. Energization of the relay lifts the member 15, opens switch 3, and causes chopping of the principal signal input to the system 4, the output from which ceases and the relay is de-energized so that the armature 11 falls, closing the switch 3. This action occurs at a predetermined rate to provide a chopping checking signal which accompanies the principal signal. The checking signal may be produced by a separate signal modifier 3<SP>1</SP> intermediate the detector 2 and the system 4. The signal reaching the detector 2 may be provided with a checking signal modification if the modifier 3<SP>1</SP> operates a shutter or other device 14. The valve has an inlet 20<SP>1</SP> and an outlet 22<SP>1</SP> whilst the member 15 embodies a through passage A and a C-shaped passage B, the passage A connecting the inlet 20<SP>1</SP> to a storage branch 30, and the passage B connecting the branch 30 to the outlet 22<SP>1</SP> when the member 15 is lifted. The valve cannot fail in its open position since there is no direct connection between the inlet and outlet. By adjusting the checking signal rate a continuous supply is directed to the outlet 22<SP>1</SP>. A further storage chamber 30<SP>1</SP> may be connected to the outlet 22<SP>1</SP> to smooth the outlet flow. The valve may be of the rotary type, having a pair of C-shaped passages A<SP>1</SP>, B<SP>1</SP>, Fig. 2, and the inlet and outlet as shown. The valve may be driven at the rate determined by a proportional controller. Specifications 793,511, 793,512, 807,033, 823,880, 823,881 and 823,882 are referred to.
Patent GB-1376568-A (GB)
Title: Travelling wave tubes
IPC: H01J23/26
Filed: 1973-02-20
Abstract: 1376568 Brazing SPERRY RAND CORP 20 Feb 1973 [7 March 1972] 8182/73 Heading B3R [Also in Division H1] In the fabrication of a travelling-wave tube (see Division H1), the slow-wave structure-as described, a molybdenum wire helix 1-is secured to ceramic support rods 3, 4, 5 by bonding a layer of metal, e.g. Ni, to the rods; plating the helix with a brazing metal, e.g. Cu, Ag, or Au; positioning the, rods and the helix in contact; melting the brazing metal; and, after cooling, removing the metal layer and the brazing metal other than at the brazed joints. As described, the rods 3, 4, 5 are of aluminium oxide or beryllium oxide, and before having the metal layer applied thereto may be provided with a seal-forming strip made from a slurry consisting of a butyl alcohol suspension of molybdenum trioxide, manganese dioxide, cuprous oxide, glass frit, and a nitrocellulose binder, which is applied by brushing or dipping, before sintering at 1100 C. for 20 minutes in wet dissociated ammonia. The metal layer is applied as a slurry of nickel oxide in alcohol, which is reduced to a nickel film by heating in wet hydrogen at 1100 C. for 10 minutes. A jig is described (Fig. 2, not shown) facilitating the binding of the rods in position about the gold-plated helix with wires. After removal of the bound structure from the jig it is brazed in a conventional furnace at 1100 C. for 10 minutes in wet cracked ammonia. Finally, surplus gold film is removed with a cyanide solution, and surplus nickel is removed with acid.
Patent GB-416727-A (GB)
Title: Methods of and apparatus for utilising the available energy in a hot liquid under pressure
IPC: B63H11/00
Filed: 1933-03-17
Abstract: 416,727. Jet nozzles. OFFICE NATIONAL DES RECHERCHES SCIENTIFIQUES ET INDUSTRIELLES ET DES INVENTIONS, 1, Avenue du MarÚchal, GalliÚni, Bellevue, Seine - et - Oise, France. March 17, 1933, No. 8184. Convention date, March 19, 1932. [Class 69 (iii).] A nozzle for the shockless expansion of a hot liquid under a pressure higher than the boiling pressure corresponding to the temperature comprises converging and diverging portions a, b, the profiles of which merge so that the nozzle cross-sectional area suddenly enlarges, that portion of the enlargement nearest the axis being approximately normal thereto and then flaring outwardly.
Patent GB-594830-A (GB)
Title: Improvements in or relating to plastic compositions based on polyvinyl acetals
IPC: C08K5/521
Filed: 1945-04-03
Abstract: Polyvinyl acetal resins are plasticized with tri-(b -chlor-ethyl) phosphate.  Acetals specified are those obtained from formaldehyde, acetaldehyde, and butyraldehyde.  The plasticizer may be added at any time during the preparation of products such as films and varnishes, diluted if required with a solvent such as ethanol, or the acetal resin may be dissolved in an ethanol/benzene mixture.  Other plasticizers, dyes and pigments may be added.  Specification 552,258 is referred to.
Patent GB-1491964-A (GB)
Title: Transmissions
IPC: F16H47/02
Filed: 1976-02-26
Abstract: 1491964 Change - speed gear combinations; clutch control; hydrostatic transmissions "CLAYSON" NV 26 Feb 1976 [27 Feb 1975] 8312/75 Headings F2D F2C F2L and F2W In a transmission assembly comprising a hydrostatic transmission 3 and a multi-speed gear transmission 6 in series, a clutch 12 is provided which can be disengaged when the hydrostatic transmission 3 is in neutral to prevent residual torque therefrom causing difficulties in gear changing in the gear transmission 6. As shown in Fig. 1 an engine 1 drives a variable displacement pump 4 through a belt drive 2, the pump supplying a motor 5 which drives a shaft 8 of the gear transmission 6. A gear 11 is connected to shaft 8 through the clutch 12 and meshes with a gear 13 on a countershaft 9. Selective movement of three gears, 17, 18 and 19 on a shaft 10 in transmission 6, to engage with gears 14, 15 or 16 on shaft 9 (or, in the case of gear 17, with a gear 20 on shaft 10) selects one of four forward ratios. The shaft 10 drives wheels 7 through a differential 24. The clutch 12 may comprise a positive clutch, as shown in Fig. 3 in which a sleeve 58 is urged by a spring 39 to interconnect teeth 55 on gear 11, rotatably mounted on shaft 8, and teeth 57 on a gear 56 keyed to shaft 8. In an alternative construction, as shown in Fig. 7, the clutch has friction plates 110, 111 which are selectively engaged by levers 107 operated by a sleeve 104, having an inner camming surface 106. A combined control for the clutch 12 and the hydrostatic transmission ratio is shown in Fig. 4 in which a control lever assembly 139 is pivoted to control the hydrostatic transmission through a push-pull cable 87 connected to a control valve (Fig. 2, not shown). The lever assembly has a projection 80 which is guided in a slot 83 having portions 84, 86 and 85 corresponding to forward neutral and reverse respectively. The clutch 12 is operated through a slidable rod and a fork (Fig. 5, not shown), the rod being moved by a cable 68 fixed to a plate 88 which can pivot, about pivots 89, to disengage the clutch only when a slot 90 is aligned with a stop 91, i.e. in neutral. The hydrostatic transmission (Fig. 2, not shown) has a feed pump which provides pressure for pump 4 control and has high pressure relief valves between main and return lines, one of which is manually operable to provide a bypass and can be used for inching. The lever assembly 139 has a spring-biased friction means to retain it in an adjusted position (Fig. 6, not shown).
Patent GB-426230-A (GB)
Title: Process for the operation of secondary batteries
IPC: H02J7/04
Filed: 1934-03-16
Abstract: 426,230. Systems employing batteries. SHIELDS, T., 30, Southampton Buildings, Chancery Lane, London. - (Accumulatoren- Fabrik Akt.-Ges. ; 3, Askanischer Platz, Berlin) March 16, 1934, No. 8338. [Class 38 (iv)] In systems in which batteries are traversed by A.C., consequent discharge of a battery is prevented by trickle charging it with D.C., which may be supplied from a converter or rectifier fed from the A.C. circuit which supplies the A.C. passing through the battery. The D.C. is supplied at a voltage at least 0À1 volts per cell greater than the open circuit voltage of the battery.
Patent GB-435128-A (GB)
Title: Manufacture of articles by using viscose-sponge masses
IPC: C08J9/00
Filed: 1934-03-16
Abstract: A viscose sponge mass containing a fusible or soluble pore-forming substance is applied to a support consisting of cellulose or containing cellulose, such as paper, fabrics, or wood, so as to become united with the cellulose, and is then treated to produce the viscose sponge.  Advantageously, the support may be first moistened with water, dilute alkali lye, viscose, or an alkaline substance.  In this manner wooden articles may be enwrapped in, or lined with, the sponge.  The process may be applied to the production of polishing cloths, window rubbers, mops with wooden handles, implements for cleaning plates or bottles, sponges having eyes or tapes for suspending them, spongy filter cloths, floor coverings, and in-soles. Specification 419,902 is referred to.ALSO:A viscose sponge mass containing a fusible or soluble pore-forming substance is applied to a support consisting of cellulose or containing cellulose, such as paper or fabrics, so as to become united with the cellulose, and is then treated to produce the viscose sponge.  Advantageously, the support may be first moistened with water, dilute alkali lye, viscose, or an alkaline substance.  The process may be applied to the production of spongy filter cloths.  Specification 419,902, [Group VIII], is referred to.
Patent GB-145885-A (GB)
Title: Improvements connected with lubrication systems
IPC: F16N27/02
Filed: 1919-04-02
Abstract: 145,885. Sheppee, F. H, and Jowitt, S. G. April 2, 1919. Gravity-feed lubricators.-In a lubricator comprising a rotating plug or disk valve formed with a chamber a<6> conveying oil from a port b<1> to a port b<2>, the plug a, Fig. 5, or the disk a<1>, Fig. 3, is furnished with a conical shoulder a<1> pressed against a seat in the casing by an adjustable spring a<4>. The plug or disk is rotated by a star-wheel a<3> engaged by a pin a' on a moving part of the machine. As shown in Fig. 5, the tubular framework b<9> of a bicycle or road vehicle is utilized as an oil reservoir.
Patent GB-590243-A (GB)
Title: Improvements in or relating to the manufacture of selenium elements such as rectifiers
IPC: H01L21/06
Filed: 1945-04-07
Abstract: 590,243. Light sensitive cells. STANDARD TELEPHONES & CABLES, Ltd., and DRIVER, D. L. A. April 7. 1945, No. 8639. [Class 40 (iii)] [Also in Group XXXVI] A photo-electric cell comprises a base-plate 1. having a superposed semi - conducting layer 3, e.g. of selenium, upon which is a counter-electrode 5, between part of the selenium layer and the counter-electrode 5 there being a thin insulating layer 4, e.g. a paper, the surface of which in contact with the counterelectrode is flush with that of the selenium layer. A cover-plate 6 may be applied against the counter-electrode, and the insulating layer 4, which may cover a strip round the periphery of the disc, is confined to. an area upon which pressure is to be applied. Specifications 526,482, 555,615, [both in Group XXXVI], and 560,565 are referred to.
Patent GB-711049-A (GB)
Title: Speed governors for liquid fuel injection pumps for internal combustion engines
Inventor: BURTON DOUGLAS GORDON
IPC: F02D1/06
Filed: 1951-04-11
Abstract: 711,049. Speed governors. C.A.V Ltd. Feb. 18, 1952 [April 11. 1951], No. 8377/51, Class 57 In a speed governor for a fuel-injection pump a in which a diaphragm d is connected to the control rack b and loaded by a spring e and subjected through pipe g to the pressure in the throttle controlled engine air induction pipe, movement of the diaphragm to the right causes it, in the idle speed range, to contact and open a valve h to admit atmosphere to the chamber f. The valve h has a head j that engages a seat i and the valve stem has a groove m and axial grooves n which reduce in cross section towards the seat i so that the flow passage increases in section as the valve lifts. In a modified form as shown in Fig. 4, the grooves n are replaced by a groove p which communicates with the chamber f through passages q. Specification 575,146, [Group XXVIII], is referred to.
Patent GB-151552-A (GB)
Title: Improvements in frames for motor cycles and the like vehicles
IPC: B62K11/04
Filed: 1920-03-22
Abstract: 151,552. Scott Motor Cycle Co., and Wood, H. O. March 22, 1920. Bicycles.-In a frame for motor-cycles or like vehicles, separate pairs of struts 4, 5 and 2, 3, in V arrangement, connect the top and bottom of the steering-head 1 respectively with parallel axes 8 and 6, 7 at the top and bottom of the engine or nucleus, these points being connected by parallel or converging struts 17 - - 20 with the rear axle, and the seat or saddle supported by two pairs of V-arranged struts 11 - - 14 from the lower axison the engine and the rear axle.