baber/WOPTO huggingface dataset:
Patent GB-412753-A (GB)
Title: Improvements in electromagnetically operated vacuum switches
IPC: H01H51/28
Filed: 1933-05-20
Abstract: 412,753. Electromagnetic switches. ROZUMEK, E., 10, Marschnerstrasse, Lichterfelde, Berlin. May 20, 1933, No. 14662. [Class 38 (v).] In order to ensure the separation of the contacts of electromagnetically-operated vacuum switches in cases where a tendency to welding between the contacts may occur due to lack of oxide on the contacts the separation is effected by a heavy armature which engages the contacts after a preliminary lost motion so that the contacts are operated with a jerk by the kinetic energy stored in the armature, the armature being formed to surround one or both of the contacts. As shown in Fig. 1 the contacts 1, 3 engage within a tube of refractory material 5, the movable contact being attached to a disclike support 4. In opening a heavy armature 15 is attracted upwardly by the energized electromagnet 21 and after the armature has moved upwards and attained some velocity pins 18 carried by it engage the disc 4, the impact separating the contacts abruptly and so breaking any adhesion between them. The contact 3 is latched in its raised position by a detent 22 engaging a pivoted latch 23. The rotation of the latch during its engagement opens contacts 27, 28 thus automatically breaking the circuit of electromagnet 21. To re-close the switch a second electromagnet 35 is energized to draw down a spring-supported armature 29, a projection 36 of which tilts the latch 23 to release the detent 22, the contact member 3 falling to engage its counter contact by gravity assisted by a spring 6. In a modified form, Fig. 2 (not shown) the opening of the contacts may be effected in a similar manner under the action of an electromagnetically stressed spring, when the electromagnet circuit is broken.
Patent GB-229166-A (GB)
Title: Improvements in or relating to tyres for motor road and other vehicles
IPC: B60C11/04
Filed: 1924-06-17
Abstract: 229,166. Rapson, F. L. June 17, 1924. Tread surfaces.-Relates to tyres of the kind provided with a plurality of superposed treads arranged so that as one wears away the next will automatically become effective, and consists of forming the tread with grooves of non- uniform depth. In the construction described, the tread consists of two circumferential grooves d, Fig. 1, providing a continuous rib b and transverse grooves e forming a series of blocks c on each side of the rib b. The grooves d, e are formed with parts g, i of increased depth, leaving connecting pieces f, h at the corners of the lateral series of blocks, so that when the original tread surface wears away, another surface shown in Fig. 4 becomes visible. In a modification, the mould for forming the tread may be adapted to provide bridge-pieces at the centres of the grooves j. The sides of the tread may have ribs m, n of V. and semi-circular shape and of decreasing size.
Patent GB-908937-A (GB)
Title: Improvements in plasterer's trowels
IPC: E04F21/06
Filed: 1959-04-30
Abstract: 908,937. Trowels. HILL, J. H., and DAVIES, W. A. July 29, 1960 [April 30, 1959], No. 14697/59. Class 61.  In a plasterer's trowel comprising a flat metal float blade 2 and a handle having a tang 4 fixed thereon, a metal mounting strip 1 of dovetail cross-section is welded on the back of the float blade and the base of the tang has a dovetail groove for slidably engaging the mounting strip.
Patent GB-472037-A (GB)
Title: Improvements in or relating to the handles of wooden sporting articles
IPC: A63B59/00
Filed: 1937-05-27
Abstract: 472,037. Cricket bat &c. handles. SYKES, Ltd., W., and ARUNDEL, P. May 27, 1937, No. 14715. Addition to 464,006. [Class 132 (ii)] In a cricket bat or like handle built up of cane laminae and furnished with a central solid or tubular metal rod enclosed within a rubber sleeve as described in the parent Specification, one or more resilient strips 6, Fig. 3, are inserted between the laminae 2, 3, and are so arranged that at least one insertion extends wholly or partially around the rubber sleeved rod, Figs. 2 and 6. Insertions 10, 11 of hard wood may be used at either end of the handle and a known type of clip 12 may be driven in for strengthening purposes.
Patent GB-257678-A (GB)
Title: Improvements in or relating to the driving mechanism of endless track vehicles
IPC: B62D55/125
Filed: 1925-06-05
Abstract: 257,678. Dawson, Sir A. T., and Buckham, Sir G. T. June 5, 1925. Transmission gear of invariable ratio. -The track driving-wheels of an endless-track vehicle are driven through epicyclic reducing gear in which a spider D fixed on the driving shaft B carries double planet pinions d<1>, d<2> respectively gearing with a toothed ring E fixed to a frame member C and with a toothed ring A<2> forming part of the track sprocket-wheel A. The planet pinions rotate in bearings d<x> on shafts d supported at both ends in the spider D which is made in two parts, as shown. The sprocket wheel A rotates in bearings d<3>, d<4> on side walls D<2>, D3 of the spider. A plate A<3> of the sprocket wheel contacts with a frame member C<1> on one side. and a detachable ring A<4> on the other side of the wheel extends to the fixed ring E.
Patent GB-667031-A (GB)
Title: Improvements in and relating to a mechanism of independent seconds for movements in timepieces
IPC: G04B13/00
Filed: 1949-06-02
Abstract: 667,031. Clocks and watches. EBAUCHES SOC. ANON. June 2, 1949 [June 9, 1948], No. 14857/49. Class 139. In a timepiece movement the independent seconds' mechanism (Figs. 2 and 3), comprises, as part of the gear train of the seconds' hand, a first driving wheel 4, a driven wheel 5 coaxial with the driving wheel and having the same number of teeth as, but a slightly smaller diameter than the driving wheel, said driven wheel 5 being mounted idle over the shaft 6 of said driving wheel 4, a spring 7 connecting the driving and the driven wheels, a stopping and braking device (pawl 9) co-operating with the teeth of the driving and driven wheels to allow by its displacement upon the passage of each tooth of the driving wheel 4 a partial rotation of the driven wheel 5 as a result of the action of the spring 7 on the driven wheel 5. The wheel 5 meshes with a pinion 3 which drives the seconds' wheel 2 in step-by-step manner. One end of the spiral spring 7 is connected to the shaft 6 of the driving wheel 4 and the other end to a pin 8 on the driven wheel 5. A pin 12 on the wheel 4 arrests the wheel 5 after each movement thereof by abutting against the adjacent spoke of the wheel 5. Some of the spokes are notched at 13 to vary the initial relative setting of the wheels 4 and 5. The timepiece "beats" full seconds.
Patent GB-1198537-A (GB)
Title: Improvements in or relating to Hydraulic Presses.
Inventor: CHIESA ARTORIGE
IPC: A43D25/06
Filed: 1968-03-28
Abstract: 1,198,537. Hydraulic presses, cutting out presses. A CHIESA. 28 March, 1968, No. 14863/68. Headings B4B and B5F. An hydraulic press having a pair of spring retracted relatively movable press parts, includes a pair of stroke limiting abutment members, one adjustably mounted on each press part, and a control element operative to initiate the return stroke of the press either simultaneously with or just before the abutment members meet at the end of the approach stroke of the press parts. In the embodiment shown in the figure, in which material L is cut by tool M, reciprocable platen C is carried by bracket D mounted upon the end of a column 10 slidable within pedestal A upon which table B is mounted. The column is adjustably connected by nuts 18 to a spring biased rod 16, the lower end of which is attached to piston 28 slidable within a cylinder 30 fixed to pedestal A. The lower end of the piston is provided with an abutment rod 40 adapted to contact a surface 50 of a stepped slider 44 reciprocably mounted upon pedestal A, and microswitches 52, 54 mounted beside each surface 50. In operation, pressure fluid is introduced by pump G into the cylinder to initiate the working stroke, the stroke continuing until rod 40 abuts a surface 50. Simultaneously to, or slightly before the abutment the associated microswitch is actuated to connect he cylinder to reservoir thus initiating the return stroke under the action of spring 32. In a second embodiment (see Fig. 2, not shown) the bracket D is located part way along column 10 and the upper end of the column slidably projects through a ring carried by the upper end of sleeve 22, which sleeve has been extended upwardly. In this embodiment, the abutment members comprise a screw threaded ring adjustably mounted upon the upper end of the column and the upper surface of the ring, a stroke reversing microswitch being located adjacent the ring.
Patent GB-991696-A (GB)
Title: Oil well pipe racking platform
IPC: E21B15/00
Filed: 1964-04-10
Abstract: 991,696. Boring earth &c. LEE C. MOORE CORPORATION. April 10, 1964 [July 31, 1963], No. 14914/64. Heading E1F. An oil well pipe racking platform comprises parallel horizontal floor members 13, pegs 25 projecting from the undersides of the members, and handles 26 for pivoting each of the members about axes 15 so that pipes may be supported between the pegs and a member. One end only of each of the members is supported on a beam 4 fixed to a derrick. A fixed platform 8 is supported at one side of the member and a fixed member 19 having pegs 20 for the support of pipes is arranged on the other side of the members. Each member 13 has a plate 17 which engages an adjacent member or the fixed platform. A member 22 against which the pipes also lean is fixed some feet below the member 19.
Patent GB-160694-A (GB)
Title: An improved spout or lip for teapots, jugs, ewers, basins, and the like
IPC: A47J36/14
Filed: 1920-06-02
Abstract: 160,694. Tunnicliff, F. June 2, 1920. Ewers.-The underside of the pouring aperture of the spout b of an ewer forms an acute angle with the forwardly-curved breast a, the apex of the angle being higher than the tip of the spout, thereby quickly getting rid of the last drops of liquid and preventing any drops from running down the outside of the spout.
Patent GB-1432532-A (GB)
Title: Mechanism for changing fuel elements and control rods in a nuclear reactor
IPC: G21C19/10
Filed: 1974-04-04
Abstract: 1432532 Handling control rods and fuel elements FRIED KRUPP GmbH 4 April 1974 [5 April 1973] 15029/74 Heading B8H Apparatus, for suspending from an overhead, traversable hoist, for handling fuel elements and control rods in a nuclear reactor or storage facility, comprises a mast 1 connectable to the hoist, a lifting body 7 suspended by cables 4 from the hoist and in turn supporting a gripping body 3, and gripping tool holders 17, 18 movable along rails 13, connected to the lower end of the mast, to be selectively positioned beneath the gripping body such that tools 11, 12, for respectively engaging a control rod head 52 and a fuel element 46, may be coupled to the body. The body comprises a sleeve 28 with radially displaceable balls 33 for engagement with an annular groove 27 in a sleeve 44 of a tool, when the body is lowered into the tool, and a pusher 34 movable by a piston 39 to lock the balls in their tool engaging position. Relative movement between the lifting body 7 and the gripping body 3, after the body 3 has located in the tool and on continued lowering of the body 7, controls a valve 90 which in turn controls the flow of air to and from the cylinder 38 containing the piston 39 and hence movement of the pusher. A further piston 84 and cylinder 83 control movement of a pin 62 in the gripping tool 11, which pin acts on balls 70 in radial holes in the tool to connect the tool with a sleeve 71 forming part of the head of the control rods. In the case of the gripping tool 12, the piston 84 acts on a yoke 78 connected via toggle linkages 76 to two pairs of pivoted hook arms 72 to move same between open and closed positions. In alternative embodiments, Fig. 8 (not shown), the piston and cylinders are replaced by electromagnets, and in Fig. 11 (not shown) the balls 33, 70 are replaced by pawls.
Patent GB-551748-A (GB)
Title: Improvements in rotary offset printing machines
IPC: B41F13/20
Filed: 1941-11-21
Abstract: 551,748. Printing-machines. GAGE, F. E. Nov. 21, 1941, No. 15036. [Class 100 (ii)] A rotary offset printing-machine for office use is constructed with an impression roller 1 mounted on a shaft 5 carried by bearings 10 in a carrier 12 yieldingly supported by springs 11 and adapted to slide in guides 13 secured to the machine frame 14. Screws 17 limit the upward movement of the carrier 12 and stops 19, 20 prevent the helical gears between the impression and offset rollers from coming out of gear. The axial position of the roller 1 is controlled by an adjustably mounted yielding plate 22 at each end of the roller, which engages a ball 24 carried by the end of a reduced portion of the shaft 5 which extends outside of the bearing 10.
Patent GB-1494383-A (GB)
Title: Engineering machines
IPC: E02F3/34
Filed: 1975-04-11
Abstract: 1494383 Load handling machines POCLAIN 11 April 1975 [22 April 1974] 15054/75 Heading E1F In a load handling machine the frame I has two pivots 4 and 16 for a boom so that two different types of operation may be effected. One of the operations is a load conveying operation in which the boom is mounted in a position 8a, Fig. 1, in which the end of the boom having aperture 11a is pivotally connected by pivot 16 to the frame while the end of the boom having aperture 12a is pivotally connected to a conveyor bucket 14. The other operation is an excavating operation in which the boom is mounted in a position 8b, Fig. 3, in which the end of the boom having aperture 12b is pivotally connected by pivot 4 to the frame while the end of the boom having aperture 11a is pivotally connected to a further boom 19 having an excavator bucket 15.
Patent GB-119468-A (GB)
Title: Improved Coupling Head for Coupling Hoses of Compressed Air Pipes, particularly Brake Pipes of Railway Cars.
Inventor: NUNDIST ERNST
IPC: B60T17/04
Filed: 1918-09-17
Abstract: 119,468. N³ndist, E., and Kiefer, E. Sept. 17, 1917, [Convention date]. Closure members, rolling cylindrical.-Hosepipe couplings particularly for the brake pipes of railway vehicles have valves in the form of cylindrical rollers 20, preferably rubber covered, mounted in forked members 11 supported in an eye 10 on a spindle and pressed radially outwards by plate springs 14 so that the rollers 20 roll along bearing surfaces within the coupling member. Movement of the rollers in one direction is limited by the valve seats, as shown, and in the other by a stop surface 30. The valve seats may have rubber &c. facing. The outer end of the spindle has an arm 8 in the path of an arm 21 carried by a spindle 22 to which is also secured a projection 27 disposed in the path of the nose 28 of the co-operating coupling member. The valves are thus opened by the coupling operation, and are closed by hand operation of the arms 8 during uncoupling. Should the couplings part accidentally the valves remain open. Movement of the spindle 22 is limited by' a pin 24 working in a recess. The rollers are built up se that the rubber can be renewed readily. Modified roller mountings are described using spiral springs or leaf-springs of modified form.
Patent GB-612358-A (GB)
Title: Improved means for recovering or separating valuable nutrients in flour milling
IPC: B07B13/00
Filed: 1946-05-20
Abstract: 612,358. Separating and sorting solid materials. JONES, C. R., THOMLINSON, J., KENT, N. L.. and RESEARCH ASSOCIATION OF BRITISH FLOUR-MILLERS. May 20, 1946, No. 15254. [Class 117] Separation of the constituents of a mixture of pulverulent or finely divided materials such as particles of germ (" choice ") and bran (" reject") in flour milling is carried out stage by stage on multiple apparatus having a plurality of components in each of which the material for separation is brought into contact with a lightly moistened surface and the adherent particles are selectively removed therefrom, the constituents of the starting material being selectively separated by one component of the multiple apparatus and mixed respectively with constituents as nearly as possible of similar character selectively separated by at least two other components and the resulting mixtures being transfered to at least two further components. In the embodiment described a series of endless bands a<1>-a<9> are driven side by side and moistened for example by means of a spray (not shown) located near the lower end of the downwardly travelling portions of the bands. These bands have respective feed hoppers c<1>-c<9>, rotating soft brushes e<1>-e<3> located near the upper ends of the downwardly-travelling portions of the bands and rotating shift brushes g<1>-g<9> at a lower location than the soft brushes. The brushes contact the bands and are contained in housings to collect the materials removed by the respective brushes to deliver said materials to conduits m<1>-m<9> and n<1>-n<9>. The starting material is fed to hopper c from which falls by way of hopper c' on to the lower end of the rising portion of band a<1>, the reiect being removed from band a<1> by brush e<1> and led to hopper e<3> where it is mixed with the choice from band a<5> to fall on the lower end of rising portion of band a<3>, while the choice removed from band a<1> by stiff brush g<1> is fed to hopper c<2> where it is mixed with the reject from band a<4> to fall on the lower end of rising portion of band a<2>. In like manner the rejects and choice portions from one band are transferred to the two adjacent bands at opposite sides of this band, the reject moving stage by stage to the right until the finished reject is delivered at m<9> and the choice moving stage by stage to the left until the finished choice is delivered at n<8>. A heater such as an electric radiator, steam heater, or chamber through which hot air is circulated may be provided between brushes e<1>-e<9> and g<1>-g<9> by which particles adhering to the bands may be dried. Instead of the endless bands each component of the multiple apparatus may comprise a horizontal revolving hollow cylinder or a vertical rotating disc.
Patent GB-435921-A (GB)
Title: Improvements in water tube steam boilers
IPC: F22B37/22
Filed: 1935-05-25
Abstract: 435,921. Water-tube steam boilers. BABCOCK & WILCOCK, Ltd., Babcock House, Farringdon Street, London.-(Assignees of Deutsche Babcock & Wilcock Dampfkesselwerke Akt.-Ges.; Oberhausen, Rhineland, Germany) May 25, 1935, No. 15264. Convention date, May 26, 1934. [Class 123 (ii)] In a water-tube boiler having steeply - inclined tubes 3 across which the gases are directed by a baffle 6, the number of tubes in the first oi last row of tubes 7 is half that in the other rows, and the tubes in the row 7 are so spaced that they may be bent to cross the tube bank and support the baffle.
Patent GB-690211-A (GB)
Title: Improvements in strip feeding devices for recording and imprinting apparatus
IPC: B41J15/16
Filed: 1947-06-10
Abstract: 690,211. Typewriters &c. SMITH & SON, Ltd., W. H. June 10, 1947 [June 10, 1946], No. 13291/47. Class 100(iv) Feeding apparatus for progressively advancing continuous strip stationary 4 having a succession of transverse folds, comprises two drives one on each side of a recording position the more advanced-drive being a friction drive moving at a higher speed than the other. The strip 4 is fed from a zigzag pile underneath a platen 2 past the recording position and between friction rollers 11, 12 driven by a belt 17 from a pulley 18 on the platen shaft. The strip is driven from within the platen 2 by camoperated pins which emerge behind the recording position and since their peripheral speed is slower than that of rollers 11, 12 the strip is tensioned to remove the folds. Rollers 11, 12 are mounted on interpivoted levers 13, 14 and are urged together by a spring 15 fixed to lever 13 and anchored in any one of a series of holes 14<SP>1</SP> in the lever 14 to adjust the frictional grip on the strip 4. The lever 14 can be positioned on the machine frame by adjustment of a slotted connection 15<SP>1</SP>, 16<SP>1</SP> and by positioning the screw 16<SP>1</SP> in one of a series of notches 19. Specification 690,259 is referred to.
Patent GB-568113-A (GB)
Title: Process of making methylene-bis-4-hydroxycoumarin
IPC: C07D311/48
Filed: 1943-09-21
Abstract: 3 : 31-Methylene-bis-(4-hydroxycoumarin) is prepared by reacting 4-hydroxycoumarin with formaldehyde or a polymer of formaldehyde in an organic solvent, preferably at elevated temperature.  The formaldehyde may be used in either aqueous solution or in the gaseous form.  The preferred solvent is glacial acetic acid, but methyl, ethyl, n-propyl, iso-propyl, n-butyl, iso-butyl alcohols, acetone and dioxane may also be used.  In examples: (1) formalin is added to a glacial acetic acid solution of 4-hydroxycoumarin at 100 DEG  C.; (2) formalin is added to a solution of 4-hydroxycoumarin in boiling dioxane; (3) 40 per cent formaldehyde is added to a boiling solution of 4-hydroxycoumarin in methanol and the mixture refluxed; (4) 40 per cent formaldehyde is added to a boiling solution of 4-hydroxycoumarin in iso-propyl alcohol.  In each of the examples, the product is 3 : 31-methylene-bis-(4-hydroxycoumarin).
Patent GB-272687-A (GB)
Title: Cradle for the lowering of lifeboats of ships in peril at sea
IPC: B63B23/18
Filed: 1926-06-19
Abstract: 272,687. Joynt, A. L. June 19, 1926. Boat-lowering gear.-A boat-lowering cradle is provided with means for correcting list of the ship from which the boat is launched so that the latter may be lowered in a substantially erect position. The cradle 1 with claws 3 for engaging the keel of the boat 2 and hinged cranks 5<a> for engaging the gunwale are provided with hinged arms 6 with wheels 8 to facilitate running down the ship's side. The position of these arms relatively to the cradle is adjusted by means of screws 9 pivoted to the members 6 and working in nuts carried bv the cradle. Other mechanism such as rack and pinion may be employed and means may be provided for locking the relatively movable parts in adjusted position, for releasing the lifeboat from the cradle when water-borne, and for assisting the boat down the ship's side when the list is excessive.
Patent GB-568770-A (GB)
Title: Improvements in or relating to the fixing of the blades in turbines and compressors
IPC: F01D5/30
Filed: 1943-09-23
Abstract: 568,770. Turbines and compressors. SULZER FRERES SOC. ANON. Sept. 23, 1943, No. 15605. Convention date, Oct. 23, 1942. [Class 110, (iii)] Blades 4, which may be stationary or moving, have roots 5 placed in grooves 6, which are wider than the roots, the space 7 being filled with one or more rings 8, 9, 10. The rings are rammed into position and the rotor or carrier edge 12 caulked over. Each ring may be divided into several sections circumferentially. The invention is stated to be applicable to radial flow blading. The rings may be of soft iron with the outermost ring of harder metal than the others.
Patent GB-1493508-A (GB)
Title: Device for locking a movable form feed
IPC: B41J11/30
Filed: 1975-04-17
Abstract: 1493508 Selective printing NIXDORF COMPUTER AG 17 April 1975 [24 April 1974] 15932/75 Heading B6F  Transverse adjustment of pin tractors.-Pin tractor 6 is transversely slidable on shaft 8 to which it can be releasably locked by rotation of the shaft 8. A sleeve 33 within the tractor 6 is connected or formed integrally with eccentric flange 34. Locking is caused by the rotation of sleeve 33 on the shaft so that groove 36 at the maximum radially spaced part of the flange 34 engages a corner 37 of leaf spring 38. The shaft 8 may be rotated by a knob on its end or through a linkage, Fig. 3 (not shown). Alternatively the polygonal shaft 8 may be circular with a dwell. Where several pin tractors are arranged along shaft the eccentric flanges of the tractors may be shaped to permit selective locking/unlocking of different pairs of tractors in different positions of the flanges' rotation.