baber/WOPTO huggingface dataset:
Patent GB-725772-A (GB)
Title: Improvements in engine starting apparatus for internal combustion engines
IPC: F02N15/00
Filed: 1953-07-29
Abstract: 725,772. Turning-gear. GENERAL MOTORS CORPORATION. July 29, 1953 [Aug. 5, 1952], No. 20983/53. Class 7 (5). [Also in Group XXXVII] In engine starting apparatus comprising an electric motor, a pinion 28 slidable under spring pressure into mesh with an engine gear, not shown, a pivoted lever 38 rockable to shift the pinion 28 into meshing position, and a solenoid, the movements of the spring-urged plunger 51 of the solenoid are transmitted to the lever 38 through a lost-motion connection and on energisation to a movable contact 84 through a spring 85 and on de-energisation directly to the contact 84, the latter being adapted on energisation of the solenoid to close the motor circuit. Construction. The splined armature shaft 24 has a one-way or over-running clutch 26 slidably supported thereon and connected to the pinion 28 whilst between the clutch and a collar 30 slidable on a sleeve 29 extending from the clutch is a spring 31 retained under compression. The lever is bifurcated at one end and has pins 40 therein engaging a groove 41 in the collar 30, the other end being joined by a pin 43 to a link 44 which has a lost-motion connection with 51, and the link 44 being provided with the contact 84 that co-operates with two fixed contact studs 71 of which only one is shown (see also Group XXXVII). The link may be replaced by a rod-like extension of the armature connected by a U-piece to the fork, the amount of lost-motion being defined by a shoulder on a reduced portion of the extension end of the U-piece. Operation. A starting switch is closed and coils 61, 62 are energised to shift the plunger 51 leftwardly and hence pivot the lever 38 in an anti-clockwise direction ; the pinion meshes with the engine gear and causes contact 84 to bridge studs 71 and so short-circuit coil 61 to energise the starting motor. The coil 62 holds the plunger 51 in the operative position until the starting switch is opened whereupon the parts are returned to the inoperative position by expansion of a spring 90. In the event of tooth abutment the contact 84 bridges studs 71 to operate the motor which turns the pinion until the teeth are correctly positioned for indexing to be effected by the spring 31. The lost-motion connection permits the separation of contact 84 and studs 71 upon opening the starting switch when the engine fails to start or the battery cannot turn the motor and the friction between the pinion and engine gear is too great to enable the parts to be retracted by spring expansion.
Patent GB-432767-A (GB)
Title: Improvements in letterpress printing
IPC: B41L15/02
Filed: 1934-10-20
Abstract: 432,767. Printing - surfaces. TINLING & CO., Ltd., C., and ELLIOTT, W. E., 53, Victoria Street, Liverpool. Oct. 20, 1934, No. 20986. [Class 100 (ii)] An assembly of type for letterpress printing is prepared by arranging individual types or type bars upon a convex support, grooving the ends of the assembled type to receive a locking bar, and then clamping the type so locked together in a partially cylindrical chase adapted to be secured to a printing cylinder. Type bars 1, Fig. 5, are clamped upon a curved bed 3 by a hinged cover 4 and the bed is then traversed by a screw 9 past a pair of saws 11 which cut straight grooves in the ends of the bars. Locking bars 12, Fig. 1, are inserted in the grooves and the whole assembly inserted in a curved chase 13 which may be cellular to receive a number of such assemblies. The assembly is locked in the chase by a bar 14 grooved to engage the bar 12 and actuated by screws 16, and by a side bar 18 actuated by screws 19.
Patent GB-378625-A (GB)
Title: Improvements in sewing machines
IPC: D05B69/30
Filed: 1931-07-23
Abstract: 378,625. Sewing-machines. UNION SPECIAL MACHINE CO., 400, North Franklin Street, Chicago, U.S.A.-(Assignees of Christensen, N. V. ; 400, North Franklin Street, Chicago, U.S.A.) July 23, 1931, No. 21033. Convention date, Dec. 17, 1930. [Class 112.] Upper and lower shafts, connecting; feeding work by wheels.-A sewing machine, more especially for sewing heavy wide sections of fabric in forming relatively large articles, has the upper needle-actuating shaft and the lower shaft which drives the complemental stitchforming devices inclined at an angle to one another so that they may be connected together by a relatively short connection, e.g. by skew gearing. The machine, as shown, comprises a long supporting base 1 enclosing a main shaft 46 and having attached, by bolts, to members integral with the base, a standard 3 with an overhanging arm 4 housing a needleactuating shaft 10. The shafts 10, 46 each consists of short end sections supported in bearings connected by universal driving connections to a long aligned hollow centre section. The inner end sections 10a, 46a, Fig. 4a, carry interengaging skew gears 87, 86, respectively, by which the inclined upper shaft 10 is driven from the lower horizontal one 46, the shaft 46 being driven by a pulley 80. The loopers 40 are moved into and out of the needle loops by a link 42 which is oscillated through an arm 43 by an eccentric strap 44 co-operating with an eccentric on the main shaft 46. The looper support 41 is oscillated to give a needle avoiding movement to the loopers by an arm 47 co-operating with an eccentric on the shaft 46. The needle bar 8 is reciprocated by a crank disc 12 on the upper shaft section 10c, and the work is fed by a feed dog 48 co-operating with a presser foot 17 as well as by a puller feed comprising an upper spring-pressed roller 29 carried by the overhanging arm 4 and a roller 56 mounted on a shaft 54 which is oscillated intermittently in one direction only through clutch mechanism contained in a housing 64 and driven by an eccentric 67 on the main shaft. The shaft 46 may be turned manually when desired by pushing in a wheel 73 to engage a gear wheel 71 on the axis thereof with a gear wheel 68 on the shaft 46.
Patent GB-1202191-A (GB)
Title: Improvements in woven fabrics
Inventor: MONTE NOEL THOMAS HAYES DE
IPC: D03D15/00
Filed: 1966-05-13
Abstract: 1,202,191. Base fabric for tufted carpets. FAIRBAIRN LAWSON Ltd. 14 Aug., 1967 [13 May, 1966], No. 21241/66. Heading D1K. A base fabric for tufting is woven from a warp of polypropylene ribbon yarn (which may be fibrillated) and a weft of normal jute, sisal, cotton, or paper yarn. The fabric may be shrunk after tufting to increase the longitudinal density of the tufts. Alternatively, the ribbon yarn may be weft and the normal yarns warp.
Patent GB-168487-A (GB)
Title: Automobile stone-crusher
IPC: B02C21/02
Filed: 1920-07-14
Abstract: 168,487. Legrand, J., and Grillot, L. July 14, 1920. Vehicle fittings and attachments. - An automobile stonecrusher carries a small crane arranged upon the frame of the motorlorry. The crane is used to pick up stones from a heap at the roadside and deliver them to the crusher on the vehicle. As shown in Fig. 1, a stonecrusher b is mounted at the rear end of the frame a of a lorry, and a small pivotable crane e with a tipping-grab b, operated by a cable e from a winch f, is arranged in front of the crusher. The winch is driven through worm and bevel-gearing from a shaft m which is driven by belt gearing k from a clutch pulley j actuated from the engine i of the lorry. The apparatus may be used generally as a transportable lifting-apparatus.
Patent GB-1442095-A (GB)
Title: Control assembly for a nuclear reactor
IPC: G21C3/322
Filed: 1974-05-14
Abstract: 1442095 Controlling nuclear reactors N G KUZAVKOV V V PAKHOMOV I I PRIN and A S SHABALIN 14 May 1974 [14 May 1973] 21301/74 Heading G6C In a reactor (which may be a sodium-cooled fast breeder) reactivity changes due to fuel burn-up are compensated by the adjustment of control assemblies 1 each of which comprises a easing 14 vertically displaceable in a fixed sleeve 12 so as to alter the relative vertical positions of the fuelled region of the reactor core, as defined by upper and lower boundaries 27, 28, and neutron absorber and fuel sections 16, 15, respectively, contained within the casing 14, the vertical position of the casing 14 relative to the sleeve 12 simultaneously affording a flow rate of coolant in the sections 15, 16 which is appropriate to their positions relative to the fuelled region of the core (and hence their amounts of heat release) by virtue of the incorporation of a variable throttle 25 whose effect on coolant flow is dependent upon the relative vertical positioning of the casing 14 in the sleeve 12. During the initial period of reactor operation, the casing 14 is in its lowermost position, as shown, so that the entire absorber section 16 lies within the core boundaries 27, 28, the fuel section 15 being entirely outside-below-the boundaries. Thus, heat release in the absorber section 16 is at a maximum and, to ensure effective heat removal, coolant flow through that section is also at a maximum. This results from the fact that all the projections 26 on the casing and which form the throttle 25 are contained within the sleeve 12 so that coolant passing outside section 16 is negligible. Coolant entering sleeve 12 through apertures 20 passes in a main flow through aperture 21 and through fuel section 15, and in a secondary flow around the outside of the section 15. Between the sections 15, 16 apertures 19 allow part of the main flow to pass into the space 13 between the sleeve 12 and casing 14 and hence to the throttle 25 whilst the remaining part passes through the section 16 and discharges therefrom via apertures 24. Various other forms of throttle are described-one is formed by a variable area slot. During reactor operation, as fuel burn-up proceeds, the casing 14 is raised progressively by means of a drive (31) (Fig. 2, not shown) and drive rod (30) connected to a head 29 on the easing 14. Thus, as less of the absorber section 16 remains within the core boundaries 27, 28 increasingly more of the fuel section 15 comes to be disposed therein, the throttle simultaneously adjusting the coolant flow rate so that the amount of coolant by-passing the section 16 increase. The effect is to maintain a constant coolant outlet temperature. Eventually, during the final stage of reactor operation, the fuel section 15 is entirely disposed within the core boundaries 27, 28 and the throttle 25 is fully open. In the reactor described, seven control assemblies 1 are distributed across the fuelled region of the core (Fig. 3, not shown) this region being surrounded by axial and radial breeding blankets 4, 5 respectively.
Patent GB-614604-A (GB)
Title: Improvements in or relating to electric coupling sockets
IPC: H01R33/46
Filed: 1946-07-18
Abstract: 614,604. Two-part couplings. PEARSON, J. July 18, 1946, No. 21476. [Class 38 (i)] The body 19 of a socket is moulded with an integral shouldered portion 20 which is radially thickened and grooved longitudinally at 21 to permit bayonet pins on. a co-operating plug to be engaged in recesses 22. The shouldered portion 20 limits the travel of a plate 5 which carries contacts 27 and is mounted in a spring 29. Projections 33 on the plate engage recesses 34 to prevent it rotating. An end cap 31 is secured to the body by screws 32 or alternatively it may be directly screwed on. The capsecuring screws may also guide the contact plate. In a modification, Fig. 1 (not shown), the integral shouldered portion is replaced by a radially thickened annular member secured to the body by screws which also guide the spring-loaded plate. A cord grip may be provided for the leads.
Patent GB-213186-A (GB)
Title: Improvements in electric locomotives for mixed toothed-wheel and adhesion drives
IPC: B61C11/04
Filed: 1923-08-24
Abstract: 213,186. Akt.-Ges. Brown, Boveri, et Cie. May 22, 1923, [Convention date]. Articulated railway motor cars.- An articulated electric locomotive with combined adhesion-wheel and rack propelling-gear comprises three unsprung trucks a, b, c, the middle truck b being connected to the inner axles of the end trucks by spherical joints o, p, and having only rack propelling-gear m, n without any adhesion driving-wheels. Either or both of the end trucks may have adhesion driving-wheels. The spring-supported locomotive frame s is carried by the end trucks only, being connected thereto by pivot pins q, r. In order to allow for relative movement between the frame and the trucks, the pin r or one of the joints o, p is provided with longitudinal " play."
Patent GB-750173-A (GB)
Title: Improvements in or relating to crystal rectifiers
IPC: H01L21/00
Filed: 1953-08-04
Abstract: 750,173. Crystal rectifiers. GENERAL ELECTRIC CO., Ltd., and GOODMAN, C. H. L. Nov. 4, 1954 [Aug. 4, 1953], No. 21549/53. Class 37. A crystal rectifier comprises a crystal of mercuric telluride. The material may be prepared by melting mercury and tellurium in stoichiometric proportions in an evacuated silica container at 750‹ C., and cooling directionally. Excess atoms of mercury and tellurium acts as acceptors and donors respectively, and the material may be subjected to an atmosphere of one of these elements to alter its electrical properties.
Patent GB-1284951-A (GB)
Title: Self-tapping externally screw threaded members or inserts
IPC: F16B25/00
Filed: 1970-05-05
Abstract: 1284951 Self-tapping screws BOLLHOFF & CO 5 May 1970 [20 May 1969] 21611/70 Heading B3N [Also in Division F2] A self-tapping self-locking screwthreaded member 1 or insert for cutting a thread in a workpiece of soft material, the cutting thread of the member has a pitch angle γ and a friction angle p which is determined by the friction member Á when cutting is performed, the thread has two flanks 4, 15 which make angles # 1 , # 2  with a plane normal to the axis of the member, # 1  is selected such that # 2  is selected such that wherein the pitch angle γ is greater than the friction angle p. This means that the member needs an end load only on face 6 to rotate the member into engagement with a workpiece and, that once in position a tensioning load will not cause the member to undo itself. The thread may be a multiple thread or a differential thread where the pitch angle decreases toward the outer end. The member may have an internal thread 16 or an outer end portion may be threaded or knurled 19. At the inner end the member may have a non-threaded portion 18 and a slot 17.
Patent GB-139423-A (GB)
Title: Improvements relating to the water ballast tanks of ships
IPC: B63B13/00
Filed: 1919-09-03
Abstract: 139,423. Scotts' Shipbuilding & Engineering Co., and Dunlop, T. Sept. 3, 1919. Pumping-plant, arrangement of. - In ships adapted to carry oil fuel or water in the ballast tanks, the pipes from the tanks to the pumps pass through a valve chamber f fitted with a door g<2> so that the oil pump can be isolated from the tanks when carrying water and the water pump from the tanks when carrying oil. The pipe a leading from the tanks is connected through the port f<5> with the chamber d containing a screwdown valve communicating with the water-ballast pump by the pipe b, by means of the door g<2> having a recess as shown. 'If the door be reversed, the pipe a is placed in communication with the valve e communicating through the pipe c to the oil pump. The valve chamber may have several connexions to the tanks and more than one door. In a further arrangement, the connexions may be made alternately to the ballast pump or the bilge pumps.
Patent GB-915873-A (GB)
Title: Solvent recovery by distillation
IPC: C07C17/38
Filed: 1959-06-24
Abstract: <PICT:0915873/III/1> The constituents of a mixture of water, a volatile aliphatic ketone, an alcohol containing up to three carbon atoms, and methylene chloride are separated by feeding the mixture from a line 8 to a first distillation column 10 of 20-50 plates down which is passed a mixture of water and alcohol recycled via a line 12 from a second distillation column 20, recovering overhead via a line 14 a mixture of water and methylene chloride which is then separated in known manner, passing the bottoms product via a line 22 to the second distillation column which has 20-50 plates and is divided into two sections 26 and 28 by a water inlet 24 above line 22, recovering ketone overhead via a line 32 and recycling a portion via a line 36, recycling a portion of the bottoms product to column 10 via line 12 and passing the remainder via a line 42 to a third distillation column 30, recovering alcohol overhead via a line 44 and recycling a portion via a line 48, and passing off water as a bottoms product via a line 52.  The mixture may be first separated into a methylene chloride-rich layer and a water-rich layer and the methylene chloride-rich layer fed to column 10 above the water-rich layer or withdrawn from the proces. The ketone may be methyl ethyl ketone or acetone. The alcohol may be methanol, ethanol, or propanol.  The mixture may contain 20-98,5% of water and have a ratio of methylene chloride to methanol of 6:1 to 30:1 and a ratio of acetone to methylene chloride plus methanol of 7,3:1 to 1:13,7.  Water may be recycled to the first distillation column at the rate of 5-20 p moles of water per mole of methylene chloride distilled.  Examples are given.
Patent GB-684715-A (GB)
Title: An improved eye shade
IPC: G02C7/16
Filed: 1950-09-04
Abstract: 684,715. Goggles. SANSOM, A. Aug. 31, 1951 [Sept. 4, 1950], No. 21712/50. Class 97 (i). An eye-shade consists of a strip of material 1 having straight sides and the ends turned over and riveted to form a loop 3 at each end adapted to receive the arms 4 of a spectacle frame, the shield covering the space between the spectacle frame and the forehead. Specification. 614,883 is referred to.
Patent GB-518478-A (GB)
Title: Improved sensitized photographic emulsions
IPC: G03C1/29
Filed: 1938-07-22
Abstract: 518,478. Cyanine dye bases. KODAK, Ltd., and DAVEY; E. P. July 22, 1938, No. 21828. Drawings to Specification. [Class 2 (iii)] [Also in Group XX] Cyanine dye bases containing a quinoline nucleus are prepared by reacting a cyclammonium quaternary salt containing an alpha - or #-alkylmercapto group with quinaldine- or lepidine in the presence of pyridine. Carbocyanine dye bases are similarly prepared using an alpha - or 8-acetanilidovinyl derivative. The dye bases may also be prepared by heating the corresponding dyes with a large amount of diethylaniline.
Patent GB-378633-A (GB)
Title: Improved method and means for packing mule cops for storage and transport
IPC: B65D85/04
Filed: 1931-07-31
Abstract: 378,633. Packing mule cops for transport, storage, and distribution. GOLLAND, W., Brendel, Grange, West Kirby, Cheshire. July 31, 1931, No. 21843. [Class 120 (iii).] Mule cops c, Fig. 4, are packed at the spinning mill into collapsable cartons or boxes a, Fig. 5, for transport, storage &c. and so as to enable known weights of cops to be handed out to the operative at the weaving shed in a perfectly protected condition. The carton a is formed with side and end flaps a4, a<5> secured by string b, and the filled cartons A are packed for transport in a skip or crate B, Fig. 6.
Patent GB-460597-A (GB)
Title: Apparatus for photographic development
IPC: G03D13/06
Filed: 1935-08-01
Abstract: 460,597. Photographic apparatus. GROVES, W. W. (I. G. Farbenindustrie Akt.- Ges.) Aug. 1, 1935, No. 21846. [Class 98 (ii)] A daylight developing tank comprises a main chamber divided into compartments h1, h2, and an antechamber e and having a flap to close either of the compartments for receiving the film package arranged above the main developing chamber and communicating with it by a slot f through which the films fall as the protective paper is withdrawn through a light tight opening in the wall of the apparatus. The film packet, Fig. 1, contains two films a1, a2 enclosed in a protective strip b, a metal closure c, and an external wrapper d. After exposure it is introduced into the antechamber e and clamped. The end b1 of the protective strip b is withdrawn through a light tight slot g, the films as they fall into the chamber being successively directed into different compartments by a pivoted flap i moved by a lever. The bottom of the tank is closed by a detachable chamber l with light baffles m, and the tank can be immersed in a vessel containing the developing fixing or washing liquids.
Patent GB-617990-A (GB)
Title: An improved process for the manufacture of phosphorus oxychloride
IPC: C01B25/10
Filed: 1946-07-22
Abstract: In the production of phosphorus oxychloride by the action of chlorine on a calcium phosphate in the presence of carbon, once the reaction has been initiated, heat for maintaining the reaction mass at a suitable temperature is generated by passing an electric current through the calcium chloride formed.  A suitable reaction temperature is 800 DEG  C.  Preferably, the phosphatic ores should become immersed at least in part in the fused calcium chloride. The reaction may be conducted in a closed vertical furnace provided with a grid near its lower end for supporting the solid reaction mixture under which open nozzles for supplying the chlorine and under which are placed the current-supply electrodes. The solid reactants are preferably in the form of briquettes of the intimately mixed finely sub-divided materials.
Patent GB-1060575-A (GB)
Title: Improvements in and relating to haymaking machines
IPC: A01D78/10
Filed: 1964-05-27
Abstract: 1,060,575. Haymaking machines. MASCHINENFABRIK FAHR. A.G. May 27, 1964 [June 5, 1963], No. 21867/64. Heading A1F. In a haymaking machine of the type having several power-driven rake-heads 8 rotary about substantially vertical axes and spaced apart transversely of the machine on a rigid common cross-member, the cross-member consists of tubes 4 and gearhousings 5 and is made up of a driving unit 1, to which the drive for the rake-heads is connected, and lateral extension units each comprising a tube 4 terminating in half a gear-housing 5, the length of each extension unit being approximately equal to the spacing between the rake-head centres. Each gear-housing contains a pair of bevelgears 7 and a one-piece shaft 3 appropriate in length to the number of units to be used passes through all the units. The outer gear-housing halves are closed by caps 6. The tubes may be screwed into threads in the gear-housings or each tube may be integral with a pair of half-housings, which are bolted to their neighbours.
Patent GB-1292539-A (GB)
Title: Method of strengthening a silicate glass article
IPC: C03C21/00
Filed: 1971-04-19
Abstract: 1292539 Strengthening glass by ion exchange CORNING GLASS WORKS 19 April 1971 [25 Feb 1970] 21869/71 Heading C1M A soda containing silicate glass article is strengthened by introducing potassium ions into a surface layer thereof by two-successive ion exchange treatments, the temperature of the article being maintained at a temperature above the glass strain point during the first ion exchange treatment or for a period of time after the first process, and the second subsequent process being carried out at a temperature below the glass strain point but above 200 C. The first treatment may be carried out within the temperature range 600-800 C. for a time ranging from five minutes at the highest end of the temperature scale to two hours at the lower end of the range. The second treatment may be carried out at a temperature of 50-100 C. below the strain point. Between the two heat treatments the article may be heated to a temperature between the annealing temperature and the deformation temperature in either air or an acidic oxide such as sulphur dioxide. The silicate glass preferably consists of, by weight 5-25% Na 2 O; 5-25% Al 2 O 3  and/or ZrO 2 , the balance being silica and up to 20% of other compatible oxides such as MgO, K 2 O, CaO, P 2 O 5  and TiO 2 . To carry out the first treatment a bath of molten potassium dichromate, a mixture of 52% by weight potassium chloride and 48% potassium sulphate, or a potassium nitrate/potassium sulphate mixture may be used.  Four glasses on which the process may be carried out have the following compositions in percentages by weight:- The second glass is stated to be a tinted glass.