baber/WOPTO huggingface dataset:
Patent GB-231865-A (GB)
Title: Improvements in or relating to rotary motors, pumps, meters and the like
IPC: F01C1/16
Filed: 1925-03-31
Abstract: 231,865. Montelius, C. O. J. April 7, 1924, [Convention date]. Meshing screws.-A rotary motor or the like comprises a number of meshing screws, the helicoidal surfaces of one screw being both concave and those of the co-operating screw or screws being both convex so that the screws will fit to each other along an uninterrupted contact line defined by parts of the outside edges of the helicoidal surfaces and by lines generating the outside perimeters of the threads and those generating the inside surfaces of the screw grooves. A rotary engine or pump is shown comprising two ,meshing screws of different pitches, for example a single-threaded screw 9 rotated by gearing 4, 5 at twice the speed of a double-threaded screw 10. Balancing pistons 12, 11 are situated in recesses to which the fluid has access by bores in the shafts. A double arrangement with four screw members is shown in Fig. 9, wherein one screw member 93 is splined on its shaft and has a balancing piston 94 fitting a recess in the gear wheel 87. Packing strips may be provided in the edges of the threads. Different pitches may be used for the upper and lower surfaces of one screw thread, corresponding pitches being used on the thread surfaces of the other screw member. The screw members may be divided along a helical surface of slightly different pitch to vary the thickness of thread.
Patent GB-838548-A (GB)
Title: Improvements in or relating to joints for floors, floor channels, urinals and like formations
IPC: A01K1/015
Filed: 1957-03-15
Abstract: 838,548. Urinals. BROAD & CO. Ltd., and HARDIE, R. W. March 17, 1958 [March 15, 1957; May 10, 1957], Nos. 8622/57 and 14879/57. Class 26. [Also in Group X] In a floor, floor channel, urinal or like formation the elements of which have fluidtight joints, their mating or butting ends have a groove in which pliable but non-setting adhesive material is placed during assembly and squeezed in between the adjoining grooves to render the joints between the ends leak-tight. In the form shown a urinal consists of back slabs 1 and sections of drainage channel 5, where at least the abutting edges of adjacent slabs and/or of adjacent channel sections have a groove 3a and/or 3b along them containing a strip of pliable material 4a and/or 4b. The joint 6 between the slabs 1 and the channel 5 may be formed with corresponding grooves 3c, 3d similarly filled and sealed. The grooves may be rectangular in cross-section, Fig. 2, or modified to have a rounded bottom. The pliable material may be in strip form and before being introduced may have a width slightly greater than the combined depth of the adjoining grooves and be slightly less than the groove in thickness. According to the second Provisional Specification the small open joint between the channels could be filled with white cement or a compressible or rubber-like filling material.
Patent GB-660616-A (GB)
Title: Improvements in and relating to potters' lathes and chucks
IPC: B28B1/02
Filed: 1949-03-31
Abstract: 660,616. Vacuum chucks. MALKIN & CO., Ltd., F., ABBERLEY, M. W., and ELLIS, A. G. March 30, 1950 [March 31, 1949], No. 8719/49. Class 60 A chuck for a potters' lathe comprises a disc 23 fixed to the chuck spindle 12 and a spring- loaded body member 14 which is intially free to adapt itself to the inner surface of a workpiece C by axial movement relatively to a guide member 13, secured to the chuck spindle, while the chuck is stationary or rotating slowly, the arrangement being such that when the chuck is speeded up, semi-cylindrical weights 15 carried by the guide member 13 move outwardly owing to centrifugal action and engage the liner 18 of the body member 14 to hold the latter fixed. The body member is provided with a flange 21 to engage the workpiece and with a flexible lip to form an air seal. The chuck spindle is provided with a vacuum duct 25 which communicates with a corresponding duct in the lathe spindle and this communicates through a tube 30, Fig. 2, and union 29 with a duct 31 in an element 32 operatively associated with the machine drive so that it is caused to make one complete cycle in each revolution. While the chuck is rotating slowly, air bleeds 33 are exposed to atmosphere through a hole 34 in a fixed shield 35 and a light vacuum is exerted on the inner surface of the workpiece. After the chuck has speeded up, the air bleeds are carried under the shield 35 and thereby closed. The vacuum effect derived from a pump connection 36 increases substantially to an extent governed by an adjustable leak valve 37 so as to hold the workpiece in position while it is acted on by the lathe tools or the like. The air bleeds become exposed again as the element 32 nears the end of its cycle. The added vacuum effect therefore ceases before the chuck speed is reduced. In an alternative arrangement, the initial position of the slidable body is determined by an adjustable collar on the chuck spindle. Specification 654,306, [Group X], is referred to.
Patent GB-180804-A (GB)
Title: Improvements in or relating to connecting or attaching devices for tyre inflating pumps or the like
IPC: B60C29/06
Filed: 1921-03-21
Abstract: 180,804. Dunlop Rubber Co., Ltd., and Bradstock, P. March 21, 1921. Overlap joints with yielding outer sleeve compressed. - For attaching a flexible tube to a nozzle, a metal sleeve A is provided at the end of the tube, having longitudinal slits A<2> extending from each end to near the other end so as to provide two sets of fingers. The inner set is. screw-threaded to receive a gripping nut B, whilst the other set is adapted to be compressed by means cf a slidable ring C when the nozzle is inserted in the tube.
Patent GB-798027-A (GB)
Title: Process for the production of dichlorbutenes
Inventor: CROCKER HENRY PETER
IPC: C07C17/02
Filed: 1956-03-21
Abstract: Dichlorobutenes are prepared by the noncatalytic additive chlorination of butadiene in the vapour phase by a process which comprises contacting chlorine with butadiene in the ratio of at least one mol. of butadiene per mol. of chlorine in an unpacked reaction zone at a temperature within the range of about 280 DEG  to 400 DEG C. for not more than 12 seconds.  A large excess of butadiene may be used and serves to absorb the heat of reaction or the butadiene may be diluted with an inert diluent such as nitrogen. The butadiene is preferably preheated before passing into the reaction zone and is rapidly and thoroughly mixed with the chlorine.  The reaction may be carried out at subatmospheric, superatmospheric or, preferably, atmospheric pressure, and may advantageously be carried out in an adiabatic manner with a rise in temperature within the specified limits.  The products may be separated by any suitable means, such as continuous distillation, whereby the dichlorobutenes, i.e. 1 : 4-dichlorobutene-2 and 3 : 4-dichlorobutene-1 are recovered substantially pure.  The excess butadiene is also recovered and may, after washing free of hydrogen chloride and drying, be recycled.  In examples, preheated butadiene and chlorine were passed through a heated tubular glass or steel reactor at various temperatures and with contact times within the limits defined above, the dichlorobutenes being separated by fractional distillation.  The Provisional Specification further defines the low and high boiling fractions also obtained in the fractional distillation as 1-chlorobutadiene and chloroprene (low boiling) and tetrachlorobutane (high boiling).  Specification 798,028 is referred to.
Patent GB-729613-A (GB)
Title: Neutron source for well logging apparatus
IPC: G01V5/10
Filed: 1953-03-31
Abstract: 729,613. Heavy ion beam tubes. SCHLUMBERGER WELLSURVEYING CORPORATION. March 31, 1953 [April 9, 1952], No. 8859/53. Classes 39 (1) and 39 (4). [Also in Group XL (b)]  A neutron source comprises a tube containing a target 34 containing a substance 18 adapted to react with impinging ions to produce neutrons, an ion source for deriving ions from the gas filling the tube including a first cathode 21 spaced from said target, a second cathode 22 disposed between said first cathode and said target and having an aperture 28 therein through which ions may pass, and an anode electrode 24, the gas pressure being sufficiently high to provide ions without retarding them on the way to the target, means for establishing an axial magnetic field in the tube, said anode being coaxial with the magnetic axis and said cathode electrodes being spaced apart along the magnetic axis, and means for accelerating ions toward said target characterized by means for maintaining said second cathode of said ion source at a potential more negative than the potential on said first cathode. Permanent magnet 23 surrounds the ion source, and its field lengthens the electron paths in the ion source so that a glow discharge occurs, positive ions then collect on the axis of the tube and drift out of hole 28 and are then accelerated toward the target by electrodes 29 and 31. Bombardment energies of 20 kv. to 100 kv. are employed. The gas is preferably deuterium and the target may be a tungsten disc coated with zirconium impregnated with tritium, in which case neutrons of 14 MEV are produced. Alternatively if the target contains deuterium a smaller neutron flux is obtained and the energies are 2.5 MEV. A plug 36 is provided adjacent side arm 37 so that the tube may conveniently be evacuated and re-filled with gas. The tube is assembled in a housing 11 which also contains power supply 15 and radiation detector 14. Specification 724,441 is referred to.
Patent GB-622720-A (GB)
Title: Improvements in and relating to twisting machines for yarn production
IPC: B65H57/20
Filed: 1947-04-02
Abstract: 622,720. Bobbins ; controlling delivery of yarn in twisting-machines. COURTAULDS, Ltd., and HARTLEY, J. K. April 2, 1947, No. 8915. [Classes 120 (ii) and 120 (iii)] A flanged bobbin for use in conjunction with a flyer in a crepe yarn twisting-machine has an annular channel 2 surrounding the bore and in the channel a spring-pressed annular cap 4 which projects beyond the top of the bobbin 1 so that it can press against the flyer hub and brake the flyer 10 sufficiently to bring it to rest at the same speed as the bobbin, when the bobbin is stopped. A flanged collar 3 is fitted within the annular channel 2 and a coiled spring 5 is held between the base of the channel 2 and the top of the cap 4. Specification 387.430 is referred to.
Patent GB-375385-A (GB)
Title: Improvements in or relating to television and like systems
IPC: H04N3/08
Filed: 1931-03-23
Abstract: 375,385. Television. MARCONI'S WIRELESS TELEGRAPH CO., Ltd., Marconi House, Strand, and DOWSETT, H. M., 47, Drayton Gardens, Winchmore Hill, both in London. March 23, 1931, No. 8935. [Class 40 (iii).] Relates to a television system in which the object is scanned simultaneously by a plurality of light spots, each of which scans the whole picture at the same speed, and each of which is displaced relatively to the others to scan different parts of the picture at the same time, and comprises a light source 1, an apertured drum 6 providing one component of scanning, a plurality of mirror drums 9 providing the other component of scanning and projecting three displaced scanning beams on to a mirror M to be reflected on to the object P, and a plurality of mirror drums 10 driven at the same speed as the drums 9 to direct light from the illuminated areas of the object on to light-sensitive cells 11. Light from the source 1 is collected by a reflector 2 and passes through a lens system 3, a cylindrical lens system 4 and a reflecting prism ;i to illuminate the drum 6. The mirror drums 9 comprise mirrors lying tangential to the surfaces of imaginary cones of different angles and with a common axis. The apertured drum 6 may be replaced by an apertured disc, a lens drum or a mirror wheel. In a modification. the drum 6 is replaced by stationary illuminated apertures, and the drums 9, 10 are replaced by a plurality of Weiller mirror drums, Fig. 2 (not shown). Specification 374,094 is referred to.
Patent GB-548774-A (GB)
Title: Improvements in resistance welding apparatus
IPC: B23K11/31
Filed: 1941-07-18
Abstract: 548,774. Welding by pressure. BRITISH THOMSON-HOUSTON CO., Ltd. July 18, 1941, No. 9087. Convention date, July 19, 1940. [Class 83 (iv)] An electric resistance welding machine in which electrodes are moved over a work-supporting surface 20, Fig. 1, by means of a carriage 12 which supports the welding equipment and is movable along a track 15 on a bridge 16 capable of movement along craneways 18 at right angles to the track 15, is constructed with a central main welding electrode 21, a subsidiary electrode 22, and an equalizer 23 which prevents turning movement of the electrode 22 when the electrodes are depressed into contact with the work by a welding head 10 carried by a ram 11 suspended from the carriage 12. A switch 51, Fig. 2, controls the position of the ram 11, and a switch 50 controls the raising and lowering of the ram. The apparatus is especially adapted for spot welding operations in which the main electrode 21 engages the outside surface of an upper joint member 54, Fig. 12, at the point of welding and the electrode 22 engages the projecting end portion of a copper bar 55 which is inserted between the lower joint member 56 and its support 20 at the point of welding opposite the electrode 21. Equalizer 23 engages the support 20 only. The electrodes are carried by a cylinder block 24, Fig. 2, formed with a cylinder which can slide on a piston carried by a rod 33 under control of a valve 42 and pipes 41, 44 which can connect fluid pressure to either side of the piston and thus raise or lower the block 24. The electrode 22 and equalizer 23 are attached to pistons which move in cylinders in the head 24 and the valve 42 controls the pressures in these cylinders inversely to that in the cylinder of the head 24. The head 24 is fitted with a pressure gauge 48 and with a pilot valve 49 which controls a relief valve 100, Fig. 6, adapted to control the delivery pressure of a pump 92 which creates the fluid pressure for operating the movement of the head 24 and also operates to control the pressure in a cylinder 80 which operates toggle mechanism adapted to operate contacts 76, 77 and cause these to connect the leads from an electric transformer to conductors 64, 68, which convey the current to the electrodes via terminals 36, 37, flexible conductors 57, 58, and terminals 59, 60 of the electrodes 22, 21. The current is under the final control of a switch 471 associated with the control handle 47 of the valve 42. The conductors 64, 68 form part of the ram 11 and are separated by an insulating sleeve 69. A tube 70 passes through the centre of the ram and carries cooling fluid, and cooling fluid is also passed into the electrodes 21, 22. The ram 11 is insulatedly mounted and is adjustable vertically by rack-and-pinion mechanism operated by worm gearing, and its movements are guided by insulatedly mounted rollers and guides. The carriage 12 may be adjustable in planes other than horizontal.
Patent GB-214074-A (GB)
Title: A foot rest for use in connection with an accelerator pedal for a motor vehicle
IPC: G05G1/60
Filed: 1923-04-03
Abstract: 214,074. Gledhill, A. H. April 3, 1923. Rests, foot. - A spring support for use with a pedal lever B of a motor vehicle is placed so as to support the foot between the heel and the toe, and comprises a head A adjustably screwed into a spring-controlled plunger a sliding in a fixed casing a<2>. The plunger a may be telescopic or interchangeable plungers of different length may be provided. The rest may comprise a roller mounted in a bracket.
Patent GB-1144056-A (GB)
Title: Tractor-mounted seed drilling machine
Inventor: MICHAELIS GEORG
IPC: A01C7/20
Filed: 1966-03-02
Abstract: 1,144,056. Seed drilling machines. LAND MASCHINENBAU BERNBURG VEB. 2 March, 1966, No. 9132/66. Heading A1D. A seed drilling machine comprising drills, ground-engaging wheels, a main frame and a first frame adapted to be coupled to a tractor three point linkage, the first frame being connected to and movable relative to the main frame, includes a mechanism, operated in response to movement of the three point linkage, for raising the drills before the main frame is raised and for lowering the drills after the main frame is lowered. The machine has two parallel and interconnected lever arms 22, 23 mounted respectively on the first frame 1 and the main frame 5. The frames are interconnected by arms 6, 7, 7A. The arm 23 is connected to a lifting mechanism 27A, 27B and the arm 22 is connected via arm 20 and link 19 to an arm 16 which forms one of three arms 14-15, which together with a pulley 13 are pivotally mounted at 12. The arms 14 and 15 have connected thereto the ends of a cable 11 which passes around the pulley 13 and a pulley 10 which is attached to a point 9 or the tractor. When the three point linkage is raised the distance between the points 9 and 12 increases and the arm 14 is caused to rotate clockwise, thus effecting lifting of the drills. The main frame is raised when arms 7, 7A engage pins 8, 8A. When the arm 14 is rotated clockwise it may be engaged by a locking device 29 thus holding the drills in their raised position.
Patent GB-385596-A (GB)
Title: Improvements in and relating to flexible couplings
IPC: F16D3/60
Filed: 1931-03-25
Abstract: 385,596. Lubricating ball - joints. BRITISH THOMSON-HOUSTON CO., Ltd., Crown House, Aldwych, London.-(Assignees of Hinkley, R. A. ; 3133, Woodlawn Avenue, Erie, Pennsylvania, U.S.A.) March 25, 1931, No. 9142. Convention date, March 26, 1930. Void [Published under Sect. 91 of the Acts]. [Class 12 (ii).] A flexible coupling for transmitting rotation between members subject to misalignment includes ball-jointed links 45, 46. The balljoint connections to driving-pins 49, 50 each comprise a spherical piece 51 secured on the pin and turning in bearings 53 held in the eye of the link by bolts 55, an oil-retaining cover 56 and plate 57 being provided. Oil feeds to the bearings by a passage 58 from a chamber 59 in the link. Ball-joints 47, 48 at the other ends of the links may be similarly lubricated.
Patent GB-681339-A (GB)
Title: Improvements in or relating to devices for releasing and locking the film driving mechanism of a cinematographic camera
IPC: G03B21/50
Filed: 1951-04-19
Abstract: 681,339. Kinematograph cameras. PAILLARD SOC. ANON. April 19, 1951 [June 5, 1950], No. 9150/51. Class 97 (i). The camera has a bent release lever at one corner of the casing movable parallel to the corner being thereby accessible at two faces of the camera. In the form shown, the lever 1, which is moved downwards to start the camera, is urged upwards by a spring blade 5. The lever projects through the side wall 3 and is bent round to overlap the front wall 2. It carries a finger 7 with an abutment 8. The finger projects into a notch 10 in a disc 9, the notch having an abutment 11. The disc projects from the casing to be movable manually between two positions determined by a spring detent engaging holes 12, 13. In one such position the finger 7 can enter and leave the notch freely as the lever 1 is moved. In the other position the abutments 8, 11 lock the lever 1 in up or down position.
Patent GB-375395-A (GB)
Title: Process for the manufacture of terpenes
IPC: C07C5/29
Filed: 1931-03-25
Abstract: Nopinene and pinene are converted into other terpenes such as camphene by treatment with small proportions of inorganic acids or complex inorganic or complex inorganic-organic acids which yield with nopinene and pinene no addition products or only slowly-forming addition products.  Suitable catalysts are metaboric acid, titanic acid, simple and complex silicic acids, the acids of tri- and penta-valent phosphorus, vanadic, antimonic, molybdic, phosphomolybdic, tungstic, and phosphotungstic acids, and organic derivatives of inorganic acids such as chromoxalic acids.  Preferably the catalysts are freshly prepared, and are dried at temperatures not exceeding those at which they are to be used.  The reaction produces from nopinene first pinene and then camphene.  In the examples, (1) Nopinene is heated to 100 DEG  C. with metavanadic acid, added gradually in small quantities; (2) pinene is heated to 120 DEG  C. with antimonic acid, the product in both cases being camphene; (3) pinene is stirred with phosphomolybdic acid at 20-30 DEG  C.  Instead of nopinene, or pinene, oils containing them may be used.  The Specification as open to inspection under Sect. 91 (3) (a) includes the use as catalysts of complex acids of iron, sulphonic acids, and organic acids and their esters, such as oxalic and phthalic acids; and also the acid reacting derivatives of the various acids, monocalcium and monopotassium phosphates, sodium bisulphate and aniline bisulphate being mentioned.  The products may be terpenes other than camphene.  Additional examples include (4) pinene is heated to 140 DEG  C. with monocalcium phosphate; (5) nopinene is heated at 120 DEG  C. with aniline bisulphate, yielding pinene; (6) nopinene is stirred at room temperature with benzene sulphonic acid, the temperature being slowly raised to 150 DEG  C., yielding pinene; (7) nopinene at 90 DEG  C. is stirred with benzoic acid, the temperature being gradually raised to 120 DEG  C. as the benzoic acid is added, the mixture being finally raised to boiling, the product being pinene.  This subject-matter does not appear in the Specification as accepted.