baber/WOPTO huggingface dataset:
Patent GB-910409-A (GB)
Title: A method of forming butt-joints between pieces of leather
IPC: C14B1/00
Filed: 1959-02-09
Abstract: 910,409. Seaming leather. SVIT, NARODNI PODNIK. Feb. 9, 1959 [Feb. 7, 1958], No. 4387/59. Class 42 (1). In forming butt joints between pieces of leather a strip of thermoplastic material is located between the adjacent edges of the pieces of leather and fused or softened by the application of heat so that the plastic adheres to the adjacent edges and forms a joint the thermoplastic material extending at least over the full thickness of the leather. As shown, pieces of leather 1 are joined by the thermoplastic strip 2. The strip 2 may protrude and the edges of the leather may be bevelled. Further, the thermoplastic material may be allowed to fill holes on both sides of the joint for decorative effect. Suitable thermoplastic material are polyamides, polyvinylchloride, P.V.C. co-polymers, cellulose esters, &e. The strip may be formed to the required shape and can be reinforced by a fabric. The strip may be heated by conduction or by high-frequency heating and the edges of the leather may be precoated, e.g. with polyamides to enhance adhesion.
Patent GB-681660-A (GB)
Title: Web cutting mechanism
Inventor: PIAZZE THOMAS ENRIQUE
IPC: B26D1/62
Filed: 1951-02-23
Abstract: 681,660. Cutting webs. SHELIMAR PRODUCTS CORPORATION. Feb. 23, 1951. No. 4403/51. Class 31 (i). Web cutting mechanism comprises a rotatable knife holder 10 and an oscillatable anvil holder 16, the holder 10 being provided with an element 15 which, when the holder is rotated, contacts an element 19 on the holder 16 to actuate the latter so that the knife 12 severs the web 20 when the knife and anvil 18 are brought into alignment. After each cutting operation, the anvil holder is restored, by means of a spring 21, to its initial position in which an element 22 on the holder engages stop 23. The web is guided by means of a member 24 secured to the anvil holder. The knife is adjustable in its holder by means of a screw 13. The knife holder may be in the form of a roller.
Patent GB-464525-A (GB)
Title: Improvements relating to the oil-filled tanks or casings of electrical and other apparatus
IPC: H01F27/14
Filed: 1936-02-13
Abstract: 464,525. Switch cases. WHITEHEAD, G. E., and WHITEHEAD'S ELECTRICAL INVENTIONS, Ltd. Feb. 13, 1936, No. 4423. [Class 38 (v)] [Also in Groups XVIII and XXXV] An oil-containing tank or casing for a transformer or circuit-breaker, a container for switchgear, or the sump or gear-box of an internalcombustion engine is closed by a flat cover 3 bolted against a sealing washer 8. To prevent leakage through the joint, a dished cover 9 is placed over the plate 3, and secured by bolts 12. The space within the cover 9 is filled with wax or other material which is solid at ordinary temperature but is melted at a moderately higher temperature. Fil. ling plugs 16 may be provided. The cover 9 may alternatively be flat and secured to a flange projecting from the tank.
Patent GB-1088812-A (GB)
Title: Continuous production of laurolactam in the liquid phase
IPC: C07D201/04
Filed: 1966-02-02
Abstract: o -Laurolactam is continuously produced by Beckmann rearrangement of cyclododecanone oxime with sulphuric acid or oleum in the liquid phase in the following stages:-(a) mixing a solution of the oxime in a solvent which is not miscible with sulphuric or oleum, in an extraction stage, with concentrated sulphuric acid or oleum at 0 DEG to 60 DEG  C. while extracting the heat introduced and that generated by combination of the oxime with sulphuric acid, (b) separating the liquid, oxime-containing. solvent-free sulphuric acid phase from the oxime-free solvent phase; (c) transferring the oxime-sulphuric acid phase into the rearrangement stage and rearranging the oxime into the lactam at 60 DEG  to 140 DEG  C.; (d) transferring the lactam-sulphuric acid phase to the hydrolysis stage with simultaneous addition of water and a solvent for the extraction of the laurolactam resulting from the hydrolysis of the lactam-sulphuric acid phase; (e) separating the lactam-containing solvent phase from the phase of dilute sulphuric acid free from lactam; and (f) washing the lactam-containing solvent phase and working it up by fractional distillation. The preferred solvents for stage (a) are cycloaliphatic hydrocarbons, particularly hydrocumene. The same solvent may be used in steps (a) and (d) and the solvent from step (a) may be supplied to step (d).  Alternatively, separate solvent cycles may be used in steps (a) and (d) and different solvents may be used. Preferred solvents for step (d) are cycloaliphatic hydrocarbons, particularly cyclododecane and p - diisopropylcyclohexane.  Cyclododecanone and aliphatic or aromatic hydrocarbons may also be used.
Patent GB-941322-A (GB)
Title: Arrangement for the semi-automatic turning over of a reversible plough carried through three points
IPC: A01B3/42
Filed: 1960-02-09
Abstract: 941,322. Agricultural implements. ETABLISSEMENTS P. VIAUD & CIE S.A. Feb. 9, 1960 [May 16, 1959], No. 4583/60. Heading A1B. A reversible plough comprises a plough beam 9 rotatable in a body 1 connected to a three point linkage of a tractor, the upper link 12 being attached to a lever 2 having a hook 3 which engages an abutment on a link 4 pivoted to a lever 5 which is attached to a cross-member 7 on which are mounted catches 8 which are arranged to selectively engage a stop 11. To reverse the plough it is raised on the linkage and the stop is disengaged from the catch 8. As the upper link 12 is in tension the lever 2 is moved clockwise to turn the plough, the momentum being sufficient to raise the link 4 clear of the hook 3. When the plough is lowered by the linkage the hook 3 will again engage the link 4.
Patent GB-175641-A (GB)
Title: Improvements in or relating to band clip fastening devices
IPC: F16L33/04
Filed: 1922-02-16
Abstract: 175,641. Malleville, J. P. M. Feb. 16, 1921, [Convention date]. Clips, band.-In an adjustable band clip in which the band is provided with a succession of holes, a tensioning screw being adapted to engage in any desired hole to effect tightening of the band, the head of the band is formed as a separate member and is secured to the band by soldering, riveting, or hooking. As shown in Fig. 4, one end of the band is formed as a hook, adapted to be engaged in a slot E or a separate slot provided in the head, the other end of the band being passed through the slot E and the band tightened by a screw carried by the head or engaging one of the holes in this end of the band. In the modification, Fig. 7, a tongue L is provided in the slot E adapted to engage the turned-over end of the band. As shown in Fig. 6, the separate head member T is of double. form, the ends of the band being attached to the head of the corresponding screw. Reference has been directed by the Comptroller to Specifications 25855/08 and 12669/12.
Patent GB-493257-A (GB)
Title: An improved method or process and mechanism or appliances for preparing or composingrelief printing-plates
IPC: B41F27/14
Filed: 1938-02-15
Abstract: 493,257. Printing-surfaces. HUEB-. NER, W. C. Feb. 15, 1938, No. 4636. [Class 100 (ii)] In preparing a printing-surface from a number of separate relief plates particularly of rubber or other plastic composition or electrotypes with a backing of composition or rubber, a prepared relief plate is temporarily secured to a carrier with the relief side against the carrier, the back of the plate, while still attached to the carrier, is permanently secured to the printing-surface, and the carrier is removed. The plate 50, having relief surfaces 52, 53, a relief margin 51, and indicating-marks 55, 56, is placed on a glass plate 63 supported in a frame 61, Figs. 9 and 10, provided with projecting pins 64. A registering-frame 66, formed of transparent material having intersecting lines 71 at right-angles marked thereon, or having two straight edges intersecting at rightangles at the centre of the plate 63, is mounted in position by means of the pins 64, and the plate 50 is registered thereby. The plate is held in position by vacuum applied through a connection 65 in the plate 63, the frame is removed, and a carrier 58 supporting a flexible film 57 is mounted in position by means of the pins 64. The plate is attached to the film as by means of rubber strips cemented to the film and to the relief side of the plate outside the margin 51. Spacing-members of a thickness equal to that of the plate may be employed if the plate is small compared with the carrier. The carrier, with the plate, is then removed from the frame 61, and is mounted in a metal frame having surfaces thereon to form a tight seal between the frame 78, Fig. 1, the carrier 58, and the surface 26 to which the plate 50 is to be applied. The frame 78 is pivoted to a saddle 37 movable horizontally on a bar 29 which itself is vertically adjustable on side frames 24 which carry a frame 25 supporting the surface 26. The back of the plate 50 is cemented and is applied to the surface 26, and after the cement has set the carrier is removed.
Patent GB-1215488-A (GB)
Title: Polyethylene heat sealing interliner fabric
Inventor: GRISWOLD HECTOR W
IPC: D06M17/00
Filed: 1968-01-30
Abstract: 1,215,488. Heat-sealable backing fabrics. JOHNSON & JOHNSON. 30 Jan., 1968 [30 Jan., 1967], No. 4643/68. Heading B2E. A heat-fusible backing fabric comprises a textile backing sheet to which is adhered as a discontinuous coating 5-60 grams per square yard of particulate, branched-chain polyethylene of density 0.916 to 0.929, in melt index of 10-20 and a particulate size within the range of greater than 15 and smaller than 16 mesh (U.S. standard mesh), the fabric having a minimum heat seal temperature of 225‹C. and being capable of heat sealing up to at least 250‹F. The backing may be a cotton fabric, a fabric of 50% and 50% rayon or of a wool/nylon 'blend.
Patent GB-130700-A (GB)
Title: Improvements in and relating to Dynamo Electric Machines.
Inventor: PLAISANT GUSTAVE
IPC: H02K39/00
Filed: 1918-03-18
Abstract: 130,700. Plaisant, G. March 18, 1918. Addition to 126,340. Inductor-alternators ; machines with two or more armatures; magneto-electric machines.- The dynamo-electric machines set forth in the parent Specification are modified by constructing them with a number of H-shaped, U-shaped, or similar armatures so that they may operate as magnetos for the ignition of internal-combustion engines. The armatures c<1>, c<2>, c<3> are so arranged relatively to the field poles a, b that the changes in the maximum magnetic flux through them take place at different times. In a modification, the armatures and field poles are stationary, and the changes in the magnetic flux are effected by rotating sleeves g, Fig. 2. Some only of the armatures may be used for ignition purposes, while one or more may be used to produce the field exciting current. The members c<1>, c<2>, c,' Fig. 2, may be constructed as U- shaped permanent magnets or as ordinary U- shaped iron pieces without any windings, the induced winding being mounted on the field magnet structure a, b. A separate high-tension secondary winding need not be used.
Patent GB-669841-A (GB)
Title: Improvements in or relating to high frequency electric heating apparatus
Filed: 1949-02-22
Abstract: 669,841. Induction heating. GENERAL ELECTRIC CO., Ltd., & BREWSTER, L. M. KING-. Feb. 22, 1950 [Feb. 22, 1949], No. 4837/49. Class 39(iii). A high frequency electric induction heater comprises a winding 10, e.g. a split copper cylinder, which supplies current to a work coil 15, and a variable inductance 20 connected in parallel with the winding 10 and adapted to vary the loading. The inductance 20 comprises two parallel tubes secured to a bracket 11 fixed to an insulating plate 12, the winding 10 also being attached to the bracket 11. A roller 22 bridges the tubes 20 and is resiliently carried in a member which is secured to a rack 40 and is slidable vertically on guide rails 25 fastened to the plate 12. The rack 40 is moved by a handwheel 45 and a pinion. The surfaces of the tubes 20 and roller 22 are silver-plated, and a ceramic tube 32 leads cooling water through the roller 22. Pipes 17 serve to pass water round the winding 10, which is the secondary of a transformer, the primary being inside the winding 10. In alternative arrangements, the roller 22 may be replaced by a solenoid-controlled conductor, and the inductance 20 may comprise one coil whose inductance is varied by the insertion or removal of a core of powdered magnetic or conducting material. Specification 613,688 is referred to.
Patent GB-449145-A (GB)
Title: Improvements in or relating to vehicle wheels
IPC: B60B11/06
Filed: 1936-02-17
Abstract: 449,145. Vehicle wheels. AKT.-GES. DER EISEN UND STAHLWERKE VORM. G. FISCHER, Schaffhausen, Switzerland. Feb. 17, 1936, No. 4843. Convention date, Feb. 16, 1935. [Class 144 (ii)] Twin detachable-rims 3, 4, with a spacer-ring 5, mounted between a coned seating 6 on the wheel and clamps 8, are secured by headed bolts 10 capable of limited rocking displacement in the bores 12 of the spoke - ends &c. The clamps 8 have extensions 8<a> which are received in recesses 9 in the spoke-ends.
Patent GB-1134702-A (GB)
Title: Improvements in or relating to co-axial lines
Inventor: SUCKLING HAROLD FREDERICK
IPC: H01P1/06
Filed: 1966-02-03
Abstract: 1,134,702. Waveguide joints. MARCONI CO. Ltd. 5 Oct., 1966 [3 Feb., 1966], No 4878/66. Heading H1W. The hollow inner conductor of a coaxial line employed in a joint structure is closed at one end and divided into coolant liquid in-going and outgoing passages which communicate with one another at the closed-end. Waveguide sections 6a and 6b may rotate or oscillate with respect to one another about the inner conductor 1, which contains a four-start screw 5 terminating a tone end in a solid sealing portion 2, and at the other end communicating with coolant inlet and outlet ports 3 and 4, each of which opens into one pair of inter-thread spaces.
Patent GB-1300549-A (GB)
Title: Improvements in and relating to variable speed d.c. motor control arrangements and d.c. motors therefor
Inventor: CHEFFINS JOHN MARTIN
IPC: H02K13/14
Filed: 1969-01-29
Abstract: 1300549 Electric motors ELECTRO DYNAMIC CONSTRUCTION CO Ltd 28 Jan 1970 [29 Jan 1969] 4883/69 Heading H2A A D.C. motor supplied from a controlled rectifier bridge has a salient pole field system comprising U-shaped, laminated sections arranged around the armature 5, adjacent legs A, B of the sections forming the salient poles 2, 3 and the base portions 6 of the sections forming the yoke. Laminated interpoles 4 may be attached to the base portions and the latter may be formed separately from the legs
Patent GB-880192-A (GB)
Title: Fluid surge alleviator
IPC: F04B39/00
Filed: 1960-02-11
Abstract: 880,192. Silencing gaseous currents. EVERETT, W. S. Feb. 11, 1960, No. 4959/60. Class 7(2). [Also in Group XXVIII] A device for damping pulsations in a fluid line comprises three chambers 22, 24, 25, inlet 17, outlet 20 and pipes 26, 27, 28 connecting the chambers as shown. The pipe inlets 5 have mouths of twice the pipe diameter and the outlets have a diffuser section opening to twice the pipe diameter. Suitable relative lengths arid diameters of the pipes are given.
Patent GB-505458-A (GB)
Title: Improvements in or relating to cooking ovens
IPC: F24B5/06
Filed: 1937-08-10
Abstract: 505,458. Alloys. SCOTT, C. L. Aug. 10, 1937, Nos. 4972/38 (divided out of 505,486) and 2374/38. Drawings to Specification. [Class 82 (i)] [Also in Group XI] A heated side wall of a cooking-stove may be made of an alloy of cast-iron containing 24 per cent of chromium, or an alloy of aluminium and chromium, or of nickel and chromium.
Patent GB-826816-A (GB)
Title: Improvements in and relating to mouth mirrors
IPC: A61B1/253
Filed: 1958-02-17
Abstract: 826,816. Dental mirrors. CODONI, A. Feb. 17, 1958 [Feb. 22, 1957; Oct. 25, 1957], No. 5020/58. Class 81 (2). [Also in Group XXIII] A dental mirror has separate conduits for supplying liquid and gas and control means enabling liquid and gas to be supplied alternately through a common conduit to the mirror surface for cleaning purposes. Pipes 2, 3 for water and compressed air, respectively, are disposed within the handle 1 of the mirror. The pipes 2, 3 open into a conical bore 5 in which a three-way cock 4 having a passage 29 is rotatably mounted. A leaf spring 6 holds the cock 4 in the bore 5. A pin 27 engages a groove 28 in an upwardly projecting control knob 26 of the cock 4 to limit its rotation. In one limiting position of the cock 4 water flows from the pipe 2 through the passage 29 to a bore 17 at the forward end of the handle and thence through a pipe 18 which is detachably connected in the bore 17 and is carried by a detachable mounting member 19 to a nozzle 23. The nozzle 23 is located near the intersection of the longitudinal axis of the handle 1 and the plane comprising the edge of the mirror surface 22 and directs water or gas against the mirror surface. In the other limiting position of the cock 4, air from the other pipe 3 passes to the nozzle 23. Normally the cock 4 is set between the two limiting positions so that flow of air and water to the nozzle 23 is prevented. The rear ends 12 (not shown) of the pipes 2, 3 project from the handle 1 and are connected to flexible water and air supply pipes. The mirror 21 has a support 20 screwed into the mounting portion 19 which may be fitted on the handle in either of two positions so that the mirror may face in either of two opposite directions. In an alternative construction valves (not shown) control the flow of water and air from the pipes 2, 3 to the nozzle. A cylinder with a radial bore replaces the three-way cock and on rotation in one direction from a neutral position opens one valve, rotation in the opposite direction opening the other valve.
Patent GB-934154-A (GB)
Title: Improvements in or relating to alkaline storage cells and batteries
IPC: H01M4/26
Filed: 1961-02-10
Abstract: 934,154. Alkaline storage batteries. SOC. DES ACCUMULATEURS FIXES ET DE TRACTION. Feb. 10, 1961 [Feb. 11, 1960], No. 5066/61. Class 53. Active material for packing in the pockets of perforated metal envelopes is made by impregnating a sintered metal with the active material and grinding the resulting mass. Waste material from the normal sintered electrodes may be used or the metal may be deposited on a carrier in a suspension and then sintered as disclosed in Specification 759,788, the impregnation and grinding being by any conventional process. Nickel impregnated with nickel hydroxide is specifically referred to in the examples disclosed.
Patent GB-1062576-A (GB)
Title: Locking nuts
IPC: F16B39/38
Filed: 1964-02-06
Abstract: 1,062,576. Locking-nuts. L. BULMER. Jan. 6, 1965 [Feb. 6, 1964], No. 5085/64. Heading F2H. A locking-nut 1 has the major portion 2 of the screw-thread of constant pitch and terminates in a convolution of reduced pitch formed by an inwardly disposed peripheral lip 7. The pitch is reduced by applying pressure axially to the nut as by pressing or stamping. The lip 7 is provided with one or more slots 8. The threaded portion of the nuts may be prelubricated or similarly treated with a synthetic resin or glass fibre. In nuts composed of synthetic resin the threaded portion is formed during the moulding process. After use the lip 7 may be repositioned by striking the same with a hammer.
Patent GB-525221-A (GB)
Title: Improvements in or relating to electric light fittings lanterns or the like
IPC: F21V17/12
Filed: 1939-02-16
Abstract: 525,221. Band clips ; glazing. BRITISH THOMSON-HOUSTON CO., Ltd., TUPPEN, E. B., and HUBBLE, L. Feb. 16, 1939, No. 5155. [Class 75 (iv)] [Also in Group XXV] The ends of a split ring 1 for holding a lampglass on the rim of a reflector or lantern casing are joined by a rod 7 attached to an end 8 passing through a member 5 attached to the other end, the rod 7 and the member 5 being held together by spring action so that one cannot move past the other, the ring thus being kept closed. The ring is opened or closed by pressing together parts on the two ends of the ring, using one hand only. The split ring has three or more lugs projecting inwards to support the glass when the ring is opened to its limit. In the form shown, the rod 7, which is screwthreaded, notched serrated, or roughened on its surface, passes through a plate 5 hinged to a hollow lug or housing 2. A spring 3 presses the plate 5 so that it grips the rod 7, and a screw 17 locks the plate in that position. To open the band and release the glass, the screw 17 is unscrewed, and the plate 5 and the end 8 of the rod 7 are pressed together between finger and thumb. In another form, the rod is pivoted to a lug at one end of the ring and is pressed by a spring so that ratchet teeth on one side are held in engagement with one edge of a slot in a lug on the other end of the ring. The rod may be locked in position by a plate pivoted to the second lug. In a third form, the rod is screwthreaded, and is engaged by a split nut which is loosely enclosed in a housing on the other end of the ring. The nut tends to open to disengage the rod, but is held closed by being pressed by a light spring towards that end of the housing which is nearer to the anchored end of the rod, where there is a conical extension of the housing to receive a conical extension of the nut. Means are provided by which the nut can be pushed back against the spring and out of the conical extension, so that it can open up and release the rod. In a fourth form, rod and nut have discontinuous threads which can be moved out of engagement against spring action.
Patent GB-326314-A (GB)
Title: Improvements in variable speed gears
IPC: F16H37/08
Filed: 1929-02-16
Abstract: 326,314. Nightingale, T. Feb. 16, 1929. Variable-speed epicyclic gearing. - A shaft A<1> rotating at constant speed drives a disc A<2> on which are mounted planetary pinions a<1> gearing with a pinion B<1> rigid with a driven shaft Band with an internally toothed drum C driven by a sprocket wheel d at a variable speed by a second sprocket d<2> on a countershaft D<1> variably driven by a belt and expanding pulleys E<1>, E<2>. The end of the driven shaft B rotates in a ball bearing a mounted in a central recess in the disc A<2>. In the construction shown in Fig. 2, the sprocket wheel drive is imparted to a control drum C carrying pinions a<4> gearing with a sun pinion B' on the driving-shaft, and with an internally toothed drum B<2> keyed to the driven shaft B. The end of the driving-shaft rotates in a ball bearing c' housed in the drum B<2>. The countershaft may be used as the constant-speed shaft, in which case the shaft A<1> can be driven at varving speeds.
Patent GB-312117-A (GB)
Title: Improvements in or relating to mercury vapour arc lamps and rectifiers
IPC: H05B41/232
Filed: 1928-02-20
Abstract: 312,117. Blake, G. J., and Leadbetter, G. D. G. Feb. 20, 1928. Addition to 294,288. Low-pressure metallicvapour apparatus. - A mercury - vapour lamp according to the parent Specification has two anodes C<1>. C<2> shunted by a resistance D, the mid-point of which is connected through an inductance D' with the cathode B, and a heating and regulating resistance E is connected between the anode C<2> or the mid-point of the resistance and a supply lead. In a modification the inductance D' is omitted and the resistance E replaced by an inductance which may be iron-cored. The lamp may be used as a rectifier by inserting a load between the cathode and the other supply lead.