baber/WOPTO huggingface dataset:
Patent GB-477399-A (GB)
Title: Improvements in tensioning devices for transmission chains and the like
IPC: F16H7/08
Filed: 1936-05-27
Abstract: 477,399. Tensioning-arrangements for chain gearing. WELLER, J. May 27,1936, No: 14914. [Class 80 (i)] In a tensioning-device for transmission chains and the like, a slipper B bearing on a free length of the chain P between the wheels Q, R is carried by the outer end of a spiral spring A. In the form shown, the inner end of the spring is keyed to a slotted sleeve C rotatable on a stud E. The sleeve C may be turned by a nut F to adjust the pressure of the spring. The sleeve may be clamped in position by a nut H or it may be provided with a locating-pin J adapted to engage one of a series of holes in the base G. The end B of the spring may bear directly on the chain, or it may carry a pad or slipper. The end of the spring or slipper may be formed with increasing curvature. In a modification, the end of the spring is bent back to form a pawl engaging a pair of ratchet sectors keyed to the sleeve C.
Patent GB-1132249-A (GB)
Title: Methods of and apparatus for determining propagation characteristics of thermic waves in gases
Inventor: HENRY MARTIAL EMILE DU BOSCQ D
IPC: G01K13/02
Filed: 1966-04-04
Abstract: 1,132,249. Measuring temperature electrically; measuring intensity of laser beams. SOC. POUR L'UTILISATION RATIONNELLE DES FLUIDES. April 4, 1966 [April 2, 19651, No. 14970/66. Headings G1A and G1N. [Also in Division H1] The temperature of emission of a thermic wave is deduced from measuring the propagation velocity of the wave front as it travels, by conduction, through a gaseous medium of known pressure and initial temperature. As shown in Fig. 1, a pulse generator 18 triggers a spark discharge device 17 to discharge a capacitor bank 16 through a cylindrical coil 3 and at the same time, the time base sweep of a C. R. O. 23 is started. The arrival of the thermic wave at the axis of the cylinder is detected by a platinum resistance wire 5 in an A. C. bridge circuit 21, the output of which is connected to the Y plates of the C. R. O to give a trace, Fig. 2 (not shown), from which the propagation velocity may be determined. In an alternative embodiment, Figs. 3, 4 and 5 (not shown), for measuring the intensity of the output of a laser, the laser output, which may be reduced in cross-section by lenses (37, 38) passes axially through a cylindrical detector coil (5'). Instead of a C. R. O., a square wave may be generated of duration equal to the time between emission and detection of the thermic wave, and the leading and trailing edges of this square wave may respectively start and stop an electronic clock.
Patent GB-101887-A (GB)
Title: Improvements in Apparatus for Regulating the Voltage of Dynamos.
Inventor: JULLIN ALEXIS JOSEPH
IPC: H02J7/16
Filed: 1916-10-21
Abstract: 101,887. Jullin, A. J. June 9, 1914, [Convention date]. Dynamos, regulating; exciting.-In a system of voltage regulation for railway-train or motor-car lighting &c., the field-magnet winding F of the main generator, or of its exciter, is connected between an intermediate point C of the battery 6 and the junction D of an ohmic resistance R<1> and a resistance R<2> having a high positive temperature-coefficient, such as a Nernst resistance, the voltage being thereby kept constant. To increase the dynamo voltage during times when the train is running without light, another resistance r<2> having a positive temperature-coefficient may be switched in parallel with the resistance R<2>. Electro-magnetic cut-outs 7, i may be arranged in circuit as shown. An auxiliary resistance identical with the resistance R<2> may be cut into circuit automatically in case of breakage of the resistance R<2>, by means of an automatic switch constituted by the lever of an electro-magnet under the action simultaneously of a spring, a coil traversed by the current passing through the resistance R<2>, and a coil connected to the dynamo terminals. The exciter may be accommodated within the frame of the generator, their armatures 2, 4, Fig. 1, being on the same shaft. The invention may be applied to dynamos of the Rosenberg type. According to the Specification as open to inspection under Sect. 91 (3) (a), the dynamo may be compounded by means of a field-magnet winding carrying the dynamo current. This subjectmatter does not appear in the Specification as accepted.
Patent GB-838857-A (GB)
Title: Improvements in the fixing of balance weights to vehicle wheels
IPC: F16F15/32
Filed: 1958-05-12
Abstract: 838,857. Vehicle wheel balance weights. HOFMANN, D. May 12, 1958 [May 25, 1957; Aug. 30, 1957; Oct. 22, 1957], No. 15094/58. Class 144 (1). A wheel balance weight consists of a body 4 whose cross-sectional periphery has a convex portion fitting the concave inner curve of the wheel rim and extending beyond the convex portion a portion engageable with another part of the wheel rim to prevent sliding of the weight round the concave curve of the rim; and a holding spring 5 having an inner portion interlockable with the body and an outer portion, fitting the convex outer curve of the rim, which extends from the inner portion around a circumferential edge of the rim. Interlocking of the spring and the body is by means of a safety catch 1 which may be formed by a " tongue " bent out of the plane of the inner portion of the spring to fit into a cavity 3 in the body, e.g. as in Fig. 1, or by bending the inner portion into a claw abutting a surface of the body, as in Fig. 6: the safety catch may also comprise a projection from the body (either integral with it or in the form of a cast-in pin) which fits into an aperture in the inner portion of the spring. The spring is of less circumferential extent than the body and is first attached to the rim, the weight being subsequently inserted between the rim and the inner portion of the spring, the latter being strained apart from its outer portion during insertion. In the form shown in Fig. 6 this operation is facilitated by the provision of an extra portion 9 of the spring and a pointed nose 10 on the body, and extraction of the weight is effected by the insertion of a tool into depressions 11 in the body located outside the circumferential extent of the spring.
Patent GB-215607-A (GB)
Title: Improvements in or relating to steering mechanism for vehicles
IPC: B62D5/14
Filed: 1923-06-11
Abstract: 215,607. Jackson, W. J. Mellersh-, (Winship, E.). June 11, 1923. Non - reactive steering- gear; hydraulic transmission. - Comprises power steering-apparatus in which the hand-wheel shaft is coaxial with the power shaft which operates the steering- gear, the two shafts being each so connected to a valve operating member that their relative movement controls the valve and causes the power shaft to rotate to the same extent as the hand shaft. The hand - wheel shaft 40 is directly connected to the steering-shaft 24 through a lost-motion device comprising pins 77 working in inclined slots 74. When the hand-shaft is rotated, the shaft 24 being held stationary by the steering-gear, a sleeve 73 splined on the hand-shaft is both rotated and moved axially so that a circular rack formed on the sleeve rotates a pinion 62 controlling a four-way distributing valve 49. This valve effects connections between an engine-driven pump 41 and a fluid-pressure motor 11 rotating the steering-shaft 24, so that this shaft follows the movements of the hand-shalt 40, the valve 49 being closed to stop the steering-motor by movements of the pins 77 in the slots 74 when the shaft 24 has caught up to the shaft 40 again. The steering-wheels are operated by screw-andnut-mechanism 31 and arms 35 fixed on a shaft 36, the arms 35 sliding in slots in discs 37 rotatable in the nut 31. The pump 41 is of the gearedwheel type, and the motor 11 is of the rotary vane type.
Patent GB-164329-A (GB)
Title: A process for the manufacture of sugar from wood and other cellulose-containing substances
IPC: C13K1/02
Filed: 1921-06-01
Abstract: 164,329. Classen, A. June 4, 1920, [Convention date]. Addition to 142,480. Glucose.-In a modification of the process described in the parent Specification for obtaining glucose from wood and other cellulose-containing substances, a mixture of hydrochloric and sulphuric acids is used as the chief acid, the hydrochloric acid being preferably the main constituent. The catalytic agents are those described in the parent Specification, and metals and metallic oxides, such as iron oxide, manganese oxide, and chromium oxide may be added as "protective substances."
Patent GB-124671-A (GB)
Title: Improved Safety Holder for Stirrup Straps.
Inventor: PERSSON HANS IVAR
IPC: B68C1/18
Filed: 1918-09-19
Abstract: 124,671. Persson, H. I. Sept. 19, 1918. Stirrup-strap suspenders.-Relates to safety holders of the kind in which the holder d is of angular shape and is pivoted at e to the rear part of a plate b attached to the saddle a, the plate b having its lower edge c formed to incline upwards and backwards to ensure the loosening of the strap if the rider should fall with one foot entangled in that stirrup which is attached to the opposite side of the saddle, as shown in Fig. 5. According to the invention, the horn i of the holder d has its back edge approximately in line with the lower edge c of the plate b. The upper edges of the holder d and fixed plate b are situated both at the same height to provide a large surface of contact for the loop of the stirrup strap, as shown at f, Fig. 3. The holder d is held against lateral movement by its angular edge h fitting under a projecting ledge g on the plate. A step m, against which the strap k is retained when stretched in a forward direction, prevents chafing of the saddle.
Patent GB-977383-A (GB)
Title: Improvements in or relating to jumping hurdles
Inventor: TROBRIDGE GEOFFREY WILLIAM
IPC: A63K3/04
Filed: 1960-04-30
Abstract: 977,383. Hurdles. DUNLOP RUBBER CO. Ltd. April 17, 1961 [April 30, 1960], No. 15260/60. Heading E1B. A hurdle rail 2 or upright has a flexible cover 8 (of extruded or moulded natural or synthetic rubber or polyvinyl chloride) formed internally with a groove or grooves 18-21 so as to leave a cavity or cavities between itself and the post or upright. The cover for the top rail is formed with an extension 22 in the region of a lower edge to provide additional protection.
Patent GB-432385-A (GB)
Title: Improvements in steam traps
IPC: F16T1/16
Filed: 1934-05-22
Abstract: 432,385. Steam traps. YARNALLWARING CO., Chestnut Hill, Philadelphia, U.S.A.-(Assignees of McKee, J. F.; 218, Wabash Avenue, Lansdowne, Pennsylvania, U.S.A.) May 22, 1934, Nos. 15289 and 15290. Convention dates, June 3, 1933 and March 17, 1934. [Class 64 (ii)] In a steam trap, flow of condensate from inlet 27 to outlet 28 is controlled by a valve 21 provided with a shoulder 20 loosely fitting a cylinder 35, and with a disc 37 at the lower end. The valve is opened by the pressure of accumulated condensate, and the temperature increases as the condensate discharges so that condensate leaking into the chamber 18 evaporates and the pressure closes the valve. A throttled passage 24 is provided in the valve for slow discharge of condensate. Impact of condensate or steam against the disc 37 tends to close the valve. The dimensions of the throttled passages and the pressures are related by a formula which is given. In a modification, Fig. 5, (not shown), the valve body is surrounded by a dirt filter. In Fig. 11, (not shown), a non- leaking piston is employed and its two sides are connected by a passage in the casing controlled by a valve. In Fig. 13, (not shown), the shoulder 20 is replaced by a diaphragm, and in Fig. 14, (not shown), the passage 24 is controlled by a bimetallic strip. Other modifications are described in which the cylinder 35 is tapered and longitudinally adjustable, or in which a tapered pin projects into the passage 24.
Patent GB-1502603-A (GB)
Title: Ceiling linings
IPC: E04B9/12
Filed: 1975-03-19
Abstract: 1502603 Structural joints H M HAY 19 March 1975 [6 April 1974] 15340/74 Heading F2M [Also in Division E1] Noggins 15 are connected to main tees 10 of a suspended ceiling framework via clips 27 of inverted U-shape and with vertical slots 28 in their limbs. In the embodiment shown, a notched web end of the noggin is engaged in the slot by rotation in a vertical plane. In the embodiments of Figs. 1-10 (not shown), engagement is by a thrust followed by a lateral movement of the noggin end, causing a transverse flange or rib (22) to engage behind one side (17b) of one limb of the clip. In the embodiment of Figs. 13 and 14 (not shown) the clip has inwardly-directed barbs (38) at the upper limb edges to increase frictional resistance to movement along the main tee, and an enlarged opening to the bottom of the slot to facilitate engagement with a noggin by mere downwards pressure on the clip. In the clips of Figs. 1-10, a transverse rib (19) stiffens the upper part of the clip. Weakening holes (26) are provided in the noggin webs to prevent collapse in fires.
Patent GB-720051-A (GB)
Title: Improved apparatus for crimping capsules on containers
IPC: B67B3/18
Filed: 1952-06-18
Abstract: 720,051. Capsuling containers. REMY, P. June 18, 1952, No. 15346/52. Class 125 (2). Relates to apparatus for spinning the skirts of capsules on to container necks comprising a spring-loaded pressure head for engaging the top of the capsule, spinning rollers 18 mounted on rods 15 which are pivoted in slots 17 formed in a part 14 of a rotated body 4 and which are urged inwardly by garter springs 19, and an enclosing body 1, 21 clamped to a pillar 42 and having bearings 2, 3 for the rotated body 4. According to the invention, the pressure head comprises a spring 6 bearing on a piston member 35 which acts through a bearing 38 on a member 36 engaged by the spinning rollers 18 when they are idling, the member 36 being separated by a bearing 40 from a capsuleengaging head 37 pinned to a spindle 9 held within the body 4 by nuts 33. An upper bearing 34 is disposed between the spindle 9 and the body 4 and the latter is driven through a belt 44 and pulleys 45, 47 by a motor 46.
Patent GB-779552-A (GB)
Title: Improvements in or relating to pit props
IPC: E21D15/54
Filed: 1954-05-25
Abstract: 779,552. Pit props. BECORIT-GRUBENAUSBAU GES. May 25, 1954 [Sept. 14, 1953], No. 15372/54. Class 20(2) A telescopic pit prop is of the kind which has a locking device fixed to the outer prop section including a wedge positioned transversely to the longitudinal axis of the prop between side walls of the locking device, and clamping members pressed by the wedge against the inner prop section which carries at its outer end a cap member formed with a spherically curved bearing surface for rockably supporting a head plate, the underside of which has a complementary spherically curved surface. Curved bearing surfaces 15, 16, Fig. 1, on the lower side of the head plate 6 and opposing surface of the cap 5 permit tilting of the plate 6 with respect to the inner section 1. The plate 6 is prevented from rotating with respect to the section 1 by a plate. 7 having a square aperture 8 which receives the section 1 of corresponding shape, a clearance x between the plate 7 and sectiori allowing the tilting of the plate 6. The plate 7 is secured to the head 6 by bolts 9, while shearing force on the bolts is reduced by shoulders 10 on the plate 7 engaging corresponding shoulders on the head plate 6. In modification, for use with a round prop section 1a a polygonal sleeve 12, Fig. 5, fits on the section 1a so as to be positioned within the aperture 8 of the plate 7. In a further modification, the cap has a polygonal projection received within a similar recess in the head plate.
Patent GB-1511083-A (GB)
Title: Process for preparing oligomers of hexafluoropropene
IPC: C07C21/18
Filed: 1976-04-14
Abstract: 1511083 Oligomers of hexafluoropropene CENTRAL GLASS CO Ltd 14 April 1976 [17 April 1975] 15388/76 Heading C2C Oligomers of hexafluoropropene are prepared by oligomerization of hexafluoropropene in an organic solvent in the presence of, as catalyst, an alkali metal, ammonium or quaternary ammonium halide and a crown ether. Preferably an alkali metal halide such as KF, CsF or KCl is used and a crown ether such as 18-crown- 6, dibenzo-18-crown-6 or dicyclohexyl-18-crown- 6. A complex of the halide and ether is advantageous. The reaction may be conducted in acetonitrile or methylene chloride at room temperature or N,N-dimethylformamide at about 90 C. In the examples mixtures of dimer as a major faction with trimer are produced. 18-Crown-6 (C 12 H 24 O 6 ) is prepared from triethylene glycol and triethylene glycol dichloride.
Patent GB-1271612-A (GB)
Title: A device for aerating or gasifying a liquid
IPC: B01F13/00
Filed: 1970-04-01
Abstract: 1,271,612. Aerating apparatus. HERON ESTAB. 1 April, 1970 [2 April, 1969], No. 15409/70. Heading B1C. [Also in Division Fl] A container 12, e.g. for ice cream 12, has a removable core 10 through which gas is injected to aerate the liquid, and through which the aerated liquid can flow to leave the container. The two passages 4 and 2 respectively, have control valves 7, 8 and the outlet passage 2 communicates with a passage 3 through which gas from the space 13 also flows to the outlet. The core may be removed and sterilised and the container may be disposable. A screwthreaded stopper closes the container when the core is not fitted.
Patent GB-422530-A (GB)
Title: Improvements in and relating to the separation of oil from oil-containing substances
IPC: C11B1/10
Filed: 1934-05-24
Abstract: <PICT:0422530/III/1> In an apparatus consisting of a series of extractors for treating seeds and other oil-containing materials in counter current with a solvent, the first extractor consists of a chamber 4 in which is mounted a perforated feed pipe 5 through which the material passes into a second extractor 1.  Seeds are fed through a hopper 7 into the pipe 5 to which solvent containing some fat is admitted through a pipe 9 from the extractor 1.  The seeds saturated with solvent are compressed by a conveyer screw 6 against a spring loaded cone 14, and the concentrated extract thus obtained flows through the perforations 8 into the chamber 4 from which it is drawn off through a pipe 19 of adjustable height.  The seeds pass between the cone 14 and the edge of the pipe 5 into the extractor 1 through which they are conveyed by a screw 3 against a current of solvent admitted through a pipe 21.  The seeds freed from fat pass upwards through an inclined delivery pipe 15 containing a screw 16 and having a perforated area 17 surrounded by a jacket 18 through which solvent drains from the seeds and returns through a pipe 22 to the extractor. The treated seed is then removed through a pipe 20.  The annular opening between the cone 14 and the pipe 5 may be regulated to prevent a direct flow of solvent from the extractor 1.
Patent GB-476310-A (GB)
Title: Improvements in or relating to air filtering apparatus
IPC: A62B23/04
Filed: 1936-06-03
Abstract: 476,310. Filtering gases ; packing joints. GROOM, S. L. June 3, 1936, Nos. 15575 and 28596. [Class 8 (ii)] [Also in Group XXVI] Air filtering media are carried by horizontal partitions 4, the margins of which depend into troughs 11 containing liquid sealing medium. The troughs may be provided with priming tubes 25 and drain cocks. A flange 10 on the cover may be similarly sealed. The wall of the chamber may be formed in sections joined by integral sealing troughs. The filtering medium may be contained in canisters 16 which may be formed in two parts screwed together and provided with packing 22 or with liquid sealing flanges 23 dipping into troughs on the partitions 4. The seal may be produced by using a solidifying liquid such as pitch, wax, or glue, or may comprise a crust of such substance covering a layer of oil or aqueous glycerine.
Patent GB-554690-A (GB)
Title: Improvements in or relating to seaplanes, flying boats, amphibians and the like
IPC: B64C35/00
Filed: 1941-12-03
Abstract: 554,690. Seaplanes. NICOLSON, D., and LUDLOW BROS., Ltd. Dec. 3, 1941, No. 15602 [Class 4] The wing floats of a seaplane or like aircraft are carried each at the end of a buoyant structure that is so mounted on the associated wing that it may form an extension of the end or tip thereof and also be retracted so as to bring it wholly or partially within the compass of the wing structure. As shown, each float 5 is carried by a buoyant structure 4 that is pivoted at the outer extremity of the wing 3 about an axis 5a parallel to the axis of the hull or fuselage, the structure 4 being equal in width to the wing and constituting in the full-line position a substantially streamlined extension of the wing. The structure with the float may be turned from the full-line position to the operative position X or to the retracted position Y in the interior of the wing. The float structure may also be turned upwardly from the fullline position to increase the dihedral angle. Alternatively, the mounting of the float structure may be such as to permit retraction by a rectilinear or telescopic motion, the extent of the retraction being such that the float constitutes the tip of the wing or such that part of the float structure is left unretracted to form an extension of the wing surface to assist in taking off or landing. The float may be of bellows form so that it may be collapsed and be retracted wholly into the wing or may be used as an air brake.
Patent GB-653029-A (GB)
Title: Improvements in or relating to the securing in place by adhesive of a workpiece comprising a portion of polythene
IPC: C08J7/12
Filed: 1948-06-10
Abstract: A portion, particularly a sheet, of polythene is secured to a second surface, particularly canvas, by subjecting said portion to halogenating conditions to effect superficial halogenation, at least, at a surface thereof and then pressing together said surface and a second surface with adhesive therebetween.  The portion may be subjected to chlorinating conditions by exposure to chlorine gas while irradiated with ultra-violet light or by treatment with chlorine in solution in a solvent such as carbon tetrachloride while irradiated with ultra-violet light.  The adhesive preferably comprises a butadiene-acrylonitrile copolymer, other ingredients of the adhesives in the examples being a cresol-formaldehyde resin, a copolymer of vinyl chloride and vinyl acetate, a terpolymer of vinyl chloride, vinyl acetate and maleic anhydride, zinc oxide, sulphur, clay, ethyl acetate and acetone.  Specifications 471,590, 560,778 and 610,345 are referred to.
Patent GB-576690-A (GB)
Title: Improvements in or relating to simple and compound microscopes
IPC: G02B21/20
Filed: 1942-11-06
Abstract: 576,690. Stereoscopic microscopes. ENOCK, J. K. Nov. 6, 1942, No. 15695. [Class 97 (i)] In simple or compound microscopes of the kind having two reflecting prisms or surfaces behind the objective to divide the beam therefrom and produce a stereoscopic effect, the reflecting surfaces are arranged at equal distances behind the objective to direct the beams in divergent directions, the beams being subsequently deflected so that they cross one another and finally directed in parallel, divergent or convergent paths so that rays from the right-hand part of the objective will be received by the left eye of the observer and vice versa. As shown, prisms A<1>, B divide the rays from the objective C into beams a, b which are subsequently reflected by prisms A<2>, B<2> to cross, and are reflected into the eyepieces or on to a projection screen or photographic plate by prisms A<3>, B<3>. Another modification is described in which the emergent beams are parallel, and in' a further modification, the prisms A<1>, B<1> are each replaced by a single prism in which the light is twice reflected and the emergent beams are convergent until they cross and are divergent thereafter. The eyepieces arid prisms may be mounted on suitable slides to permit interocular adjustment.