baber/WOPTO huggingface dataset:
Patent GB-593833-A (GB)
Title: Engine starter gearing
IPC: F02N15/06
Filed: 1945-06-14
Abstract: 593,833. Turning-gear. BENDIX AVIATION CORPORATION. June 14, 1945, No. 15148. Convention date, May 17, 1944. [Class 7 (v)] An engine starter comprises a power shaft 2 which may be driven by the usual starter motor and which carries a screw-traversed pinion 17 co-acting with an engine gear 18, the pinion being held in engagement by latching means which is released to permit return of the pinion by inertia means responsive to deceleration of the power shaft. The power shaft carries a driving head 5 on which is journalled a screw shaft 9, to which the drive is transmitted through a spring 11. The screw shaft 9 connects with a nut 19 fixed to a barrel member 22 whose opposite end carries a driving clutch member 23 engaging a complementary clutch member 26 secured to the pinion. A spring 31, retained by a thimble 27 normally holds the clutch in engagement. A latch member 32 pivoted in the nut 19 is spring urged to engage a notch in the screw shaft. The other end of the latch has a projection 42 co-acting with a trip finger 39 carried by a loose ring 36 having limited rotary movement on the nut 19. In operation, when the starter motor is energised the screw shaft is driven to traverse the pinion into mesh with gear 18. Near the end of the travel the latch drops into its notch. Acceleration of the engine causes the pinion to overrun and the nut 19 to back away sufficiently to disengage the clutch members, further backward movement being prevented by the latch. If the engine stalls turning is resumed when the speed of gear 18 falls below the starter drive speed. When a reliable start is obtained the operator de-energises the starter motor whereupon the inertia of ring 36 causes the trip finger to disengage the latch whereupon the nut 19 and associated parts are returned to idle position. In some cases the deceleration of the armature shaft may be increased by braking means such as that described in U.S.A. Specification 2,167,891.
Patent GB-668168-A (GB)
Title: Improvements in or relating to electron discharge apparatus
IPC: H01J25/38
Filed: 1948-06-04
Abstract: 668,168. Travelling-wave tubes. STANDARD TELEPHONES & CABLES, Ltd. June 4, 1948 [June 7, 1947], No. 15151/48. Class 39 (i). In a travelling-wave amplifier a buncher is formed by a pair of coaxial metal ribbon helices 13, 14, Fig. 1, of different diameters but the same pitch, means are provided for projecting an annular beam of electrons through the space between the two helices, and the input wave is applied by lead 15 to one end of the two helices in parallel while the other end of the helices are connected to a single lead 16 terminated by a matchng impedance. The catcher 13A, 14A is similarly constructed and an annular drift tube 8 is arranged between the buncher and catcher. The width of the ribbons is parallel to the axis of the helices. Annular indirectly heated cathode 2 is surrounded by conical concentrating electrodes 3, 4. Decelerating electrodes 5, 7, 9 and retarding electrode 11 are provided between the gun and low potential collector 12. The drift tube 8 has a lower potential than either of electrodes 7, 9 to improve the bunching. The surfaces of electrodes 5, 7, 9, 11 facing the helices are formed to give a constant spacing between the surfaces and the end turn of each helix equal to half the pitch of the helices. The mean circumferential length of a complete turn of the helix structures is one or any odd number of half wavelengths at the mean frequency of operation, and the ribbons 13, 14; 13A, 14A are connected by low impedance conductors at quarter wavelength intervals to improve the electrical symmetry. When a complete turn is one half-wavelength, the low impedance conductors occur in diametrically opposite pairs and to prevent electrons from impinging thereon the annular cathode may be non-emissive at these points. Specification 7555/48 (as open to inspection under Sect. 91) and 668,827 are referred to. The Specification as open to inspection under Sect. 91 refers in addition to inductances as an alternative to low impedance connections between the two helices 13, 14; 13A, 14A. To compensate for the decrease in velocity of the electrons in the catcher the pitch of the catcher is progressively decreased towards its output end, or it is divided into a number of sections at increasing D.C. potentials. The device may be operated as an oscillator by coupling the buncher and catcher together. This subject-matter does not appear in the Specification as accepted.
Patent GB-1386395-A (GB)
Title: Lighting system for a road vehicle
IPC: B60Q1/11
Filed: 1971-05-15
Abstract: 1386395 Controlling vehicle headlamps JOSEPH LUCAS (INDUSTRIES) Ltd 11 May 1972 [15 May 1971] 15168/71 Heading F4R A vehicle headlamp system includes a headlamp 11 mounted about a horizontal axis for movement in response to the loading of the vehicle, wherein a flexible non-extensible cable 13, maintained under tension by a resilient arrangement, is connected at one end to the headlamp and at the other end to the rear suspension unit, a flexible non-extensible sheath 16, surrounding at least a part of the cable length, is fixed at one end to the vehicle body and connected at the other end through pressure plate 17, compression spring 25 and a second pressure plate 23 to the front suspension unit, and a damping system prevents the headlamp from moving suddenly when the suspension units compensate for uneven road surfaces. One end of cable 13 is attached to headlamp operating lever 12 and is maintained under tension by spring 14 mounted between lever 12 and fixed body abutment 15 to which also one end of the sheath 16 is secured. The other end of sheath 16 engages a pressure plate 17 which is slidably received within a sleeve 22 and which is urged by a compression spring 25 into engagement with a flange 24 of the sleeve 22. The sleeve 22 is itself slidably received in a casing 19 mounted on the vehicle body and is coupled to the front suspension by a flexible non-extensible cable 26. The damping system is provided by a viscous fluid, e.g. a silicone liquid with an additive, which fills the space between the cable 13 and the sheath 16. In operation, lowering of the rear of the vehicle body pulls cable 13 towards the rear resulting in a counter-clockwise pivotting of the headlamp and lowering of the front of the vehicle slackens cable 26 causing pressure plate 17 to move toward the rear and the headlamp to pivot clockwise.
Patent GB-819293-A (GB)
Title: Modified polymer
IPC: C08K5/32
Filed: 1957-05-13
Abstract: Butyl rubber, modified by incorporating 0.1 to 1.0 per cent by weight of N-nitroso-N-methyl-p-nitrosoaniline at a temperature of at least 250 DEG  F. for at least 30 seconds, used in compounded rubber stocks improves the processing properties, elasticity and resilience, particularly when furnace carbon blacks are used in the mix.  The butyl rubber, a copolymer of isobutylene and a small amount of diolefine, preferably in the form of crumb from the polymerization process is mixed with 0.5 per cent by weight of N-nitroso-N-methyl-p-nitroso-aniline during extrusion at between 250 DEG  F. and 350 DEG  F. for 1 to 2 minutes.  The rubber may then be compounded preferably at 200-300 DEG  F. with for example carbon black, zinc oxide, stearic acid, accelerators, e.g. benzothiazyldisulphide and tetramethylthiuram disulphide, and sulphur added, and the product vulcanized.
Patent GB-118929-A (GB)
Title: Improvements in or relating to Change-speed Gears.
Inventor: ZWEIGBERGK GILLIS VON
IPC: F16H61/02
Filed: 1917-10-19
Abstract: 118,929. Zweigbergk, G. von. Oct. 19, 1917. Turning-gear.-In epicyclic variable-speed gearing, the governing-member of the gear is geared to a compound-wound dynamo-electric machine, which acts as a yielding reaction device and may be used to start the engine. Clutches A<3>, A<4> are provided for connecting the driving flywheel A<1> to sleeves B<1>, B<2> which carry gear wheels F<2>, F<1> gearing with compound planet-wheels E<6>, E<5> turning in a carrier E<1>. Integral with the wheels E<6>, E<5> are wheels E<7> gearing with a wheel F<3> on a sleeve F<4> driving the shaft D through a reversing-gear. The planet-carrier E<1> carries a gear wheel G driving the armature G<3> of a dynamo-electric machine represented in Fig. 8. The machine is compound-wound and has a series winding G<4> and a shunt winding G<5> connected across a battery G<6>. A switch L controls the now of current. The clutches A<3>, A<4> and switch L are controlled by a system of levers, so that when only one clutch is engaged, the switch L is in the position shown in full lines in Fig. 8, so that the planet-carrier is rotated backwards against the resistance produced by the shunt and series windings acting together, and the shaft D is slowly started. When both clutches are engaged, the gearing rotates solid in the forward direction and the switch L is moved to the dotted position, so that the shunt and series windings oppose each other and reduce the electrical resistance to motion. With the parts in this position, the electrical machine may be used to start the engine.
Patent GB-612251-A (GB)
Title: Improvements in wipers for contacting with bank terminals in electrical switches andan improved method of manufacturing such wipers
IPC: H01H63/04
Filed: 1946-05-21
Abstract: 612,251. Making electric contacts. WESTERN ELECTRIC CO., Inc. May 21, 1946, No. 15415. Convention date, Dec. 20, 1943. [Class 83 (ii)] [Also in Groups XXXVII and XXXIX] A switch wiper contact comprising a base metal shank 34 and a contact tip 35 made of a noble metal, the bonded surface 32 of the two metals being at a small angle to the length of the shank, as shown in Fig. 7, is made by placing bars 22, 23 of base metal on each side of a wedge-shaped bar 15 of noble metal as shown in Fig. 2. The bar 15 may alternatively be placed in a correspondingly shaped slot in a bar of base metal. The bars are welded together and then rolled out to form a composite sheet as shown at 26 in Fig. 3, in which 16 represents the upper edge of the noble metal. Wipers of the required shape are then punched out in pairs having their shanks 34 in the base metal part of the sheet and their tips in the area of noble metal, or the sheet may first be cut into two lengthwise through the middle of the strip 16 and the wipers punched out singly. The ears 39 are bent upwardly after the punching operation.
Patent GB-291062-A (GB)
Title: Process and apparatus for heating finely pulverized coal
IPC: C10B47/22
Filed: 1927-09-12
Abstract: 291,062. Trent Process Corporation, (Assignees of Trent, W. E.). Oct. 25, 1926, ,[Convention date]. Divided on 277,660. Coking processes.-Finely pulverized coal which may be preheated, is carbonized by utilizing the heat obtained by the exothermic reaction which takes place during heat treatment. The gases and vapours generated during treatment travel with a powdered material which flows in a substantially solid stream, and serve to agitate and assist the material in its travel, the carbonized residue being in the form of finely divided particles. The mobility of the powdered coal is enhanced if it is maintained at a temperature of about 200‹ C., that is, at such a temperature that vapours or gases are issuing from the coal particles, the pipe through which the coal is passing being provided with a heating jacket to maintain the temperature at the desired degree. The pulverized coal, dried in a conduit 31 at a temperature of about 300‹ C., enters a chamber 32 and passes into a series of vertical pipes 34 in which it is carbonized by exothermic reaction. The residue is discharged into a chambar 35 and overflows into an annular passage 36 communicating with a second passage 40 having a discharge opening 37. The heat from the ascending carbonized particles is thus transferred to the incoming fuel. The volatiles generated pass with the coal and are discharged through an opening 37<1> and outlet 39. Specification 277,660 is referred to.
Patent GB-1496886-A (GB)
Title: Nuclear magnetic resonance apparatus
IPC: G01R33/36
Filed: 1974-04-08
Abstract: 1496886 Pulsed NMR spectrometers NATIONAL RESEARCH DEVELOPMENT CORP 10 March 1975 [8 April 1974] 15530/74 Heading G1N In an NMR spectrometer of the kind in which a sample is excited by RF pulses and the receiver has two phase detectors acting in quadrature to produce two audio signals containing spectral information, the phase of the RF in successive pulses is shifted by 90 degrees and the audio signals derived in response to pairs of pulses are combined to remove the effects of phase or gain differences between the two detectors. The transmitter, Fig. 1 (not shown), has an oscillator which can be connected to one of four delay lines under control of FET switches, so as to change its phase by 0 degrees, 90 degrees, 180 degrees or 270 degrees. After choice of phase, a gate is provided to deliver pulses of RF to a power amplifier so that the sample is excited by pulses of RF. In the receiver, Fig. 2, a signal from the sample probe is amplified at 50, attenuated at 51 and amplified at 52. An OR gate and stretcher 54 gate these amplifiers to prevent their operation during a transmitter pulse. The amplified signals pass to phase sensitive detectors 55, 56 which also receive reference inputs from oscillator 57 via a splitter 58. The P.S.D. 55 receives its reference via a 90 degree phase shifter 59 so that the detectors are in quadrature. The detector signals are amplified at 60, 61 and are sampled at 62, 63 under control of gate 54. After low-pass filtering at 64, 65 the signals are available via amplifiers 66, 67. In Fig. 3a the signal Q, is obtained from one of amplifier 66 or 67 while Q 2  is obtained from the other; if the two detection channels were identical, Q 1  and Q 2  would have equal magnitudes. Consider the signals Q 1  (90) and Q 2  (90) produced by the two amplifiers for the next RF pulse, as in Fig. 3b. By adding the signals on the x axis in Figs. 3a and 3b, and by subtracting those on the y axis, it is seen that the x and y values both total Q 1  + Q 2 , so that any difference in amplitude response of the channels is removed. Similarly any phase errors can be removed, though if both phase and amplitude differences exist between the channels a small error will remain. Alternate RF pulses are 180 degrees out of phase, so that if the output signals of the detectors are subtracted, systematic noise can be removed.
Patent GB-942777-A (GB)
Title: Swivel pipe joint
IPC: F16L27/08
Filed: 1962-04-24
Abstract: 942,777. Rotary joints. FMC CORPORATION. April 24, 1962 [April 24, 1961], No. 15546/62. Heading F2G. A swivel pipe joint specifically for liquefied gases comprises two tubular members 12, 14 having communicating bores 16, 18, and one of which members 12 has an external flange 54, at least one retaining ring 43, 56 detachably secured to the other member 14 in a fluid-tight manner to enclose the flange and to locate the members with respect to each other, and combined bearing and sealing means 48, 50, 52, 58 and 59 between the member 12 and the rings 43, 56 to facilitate the relative rotation of the rings and member while, at the same time, maintaining a substantially fluid-tight seal therebetween. As shown, a pressure ring 30 urged by springs 34 toward the member 12 is formed with a narrow annular shoulder 36 having a flat pressure exerting surface 38, and a sealing ring 40 is disposed between the flange 24 of the member 14 and the member 12 and retaining ring 43. The latter is provided with fluid drain holes 46. The sealing rings 48 . . . 59 may be of a slightly resilient plastic such as " Teflon," " Mylar " or " Kel-F " (Registered Trade Marks) or of metal. The ring 56 is divided diametrically and has a locating shoulder 60.
Patent GB-619522-A (GB)
Title: Flexible pocket receptacle
IPC: A45C1/06
Filed: 1946-05-22
Abstract: 619,522. Card cases. BUXTON, Inc. May 22, 1946, No. 15555. Convention date, Sept. 26, 1945. [Class 18] [Also in Group XV] A case for cards, passes &c., comprises flat tubular holders 1 of transparent plastic material joined by a pleated binding member 3, each pleat 4 entering and being secured within the open end of a holder 1. Extensions 7 of the member 3 may form covers, one extension overlapping the free open ends of the holders 1 and being secured by a snap fastener 9. Free portions 5 of the pleats 4 permit expansion of the case. In alternative forms, the extensions 7 may be adapted for attachment within the folds of a wallet or may be secured to separate covers joined by a " book back." The binding member 3 may consist of several strips instead of a single sheet or it may form part of the front wall of a wallet. The holders 1 may have extensions lying within the loops 5 or the outer ends of the holders may be closed and one side of each holder adjacent the pleat 4 may be left open. The holders may consist of doubled sheets, the edges of which, opposite the fold, are secured between the pleats 4 to form pockets &c. the open ends of which are closed on one side by adhesive tape, &c. The binding member may comprise separate loops stitched together at seams forming the pleats 4.
Patent GB-1221778-A (GB)
Title: Improved method of making an artificial leg
Inventor: BLATCHFORD BRIAN GEOFFREY
IPC: A61F2/64
Filed: 1967-04-05
Abstract: 1,221,778. Making artificial legs. CHAS. A. BLATCHFORD & SONS Ltd. 23 May, 1968 [5 April, 1967], No. 15652/67. Heading A5R. Artificial legs are made by (a) providing a thigh member 1, (b) providing an upper loadbearing structure 9, (c) providing a plurality of lower load-bearing components, e.g. 10, each having a knee joint unit of a different kind mounted thereon and each constructed to fit the upper-load bearing structure 9 and to be connected thereto by like releasable fastening means, such as screws 11 and bosses 12, (d) selecting one of the lower-load bearing components, and (e) connecting the thigh member to the upper load bearing component and connecting the latter by means of the releasable fastening means to the selected lower load bearing component. A variety of knee-flexing means are described and illustrated including the means illustrated in the above Figure and disclosed in Patent No. 779,087, and also a simple uniaxial knee joint (Figs. 7, 8, not shown), a joint having an adjustable band brake control (Fig. 9, not shown) and a joint having a manual knee lock (Fig. 10, not shown). The leg may also included an alignment device 1C, 4A, a pneumatic swing phase control unit 7, and an adjustable connection between component 9 and the alignment housing 4 comprising a nut and bolt 13 in slot 9B.
Patent GB-988473-A (GB)
Title: Polymeric compositions
IPC: C08L33/16
Filed: 1962-04-25
Abstract: Polymeric mixtures are made which comprise (1) from about 3% to about 25% by weight of a polymer prepared from at least one perfluoroalkylsuphonemidoalkyl acrylate or methacrylate of the formula CH2 = CR1Q, wherein R1- is hydrogen or methyl and Q is a <FORM:0988473/C3/1> group in which R4 is hydrogen or a C1-C6 alkyl group and R5 is a C2-C12 alkylene group, and n is from 3 to 14; and (2) from about 75% to 97% of a polymer of at least one vinylidene compound free from fluorine attached to non-vinylidene carbon atoms and having the formulae <FORM:0988473/C3/2> butadiene, isoprene, chlorobutadiene and dichlorobutadiene, wherein R1 and R4 are as above, R2 is a C1-C18 alkyl group, R3 is phenyl or alkyl substituted alkyl group and Y is fluorine, chlorine or bromine. Polymers (1) specified are 2 - (N - methylperfluorooctylsulphonamido)ethyl, 2 - (N - ethylperfluorooctylsulphonamido)ethyl and 2 - (N - n - propylperfluorooctylsuphonamido)ethyl acrylates and methacrylates. Polymers (2) specified are those derived from esters of acrylic and methacrylic acids, vinyl and allyl esters, styrene and alkyl styrenes, vinyl ketones, N-methylol acrylamide and methacrylamide vinyl and vinylidene halides and the conjugated diolefines and derivatives thereof specified above.  The examples describe the preparation of compositions by blending a latex of poly-2-(N - n - propylperfluorooctylsulphonamido)-acrylate with latices of poly-n-octyl methacrylate and polychloroprene.  The blends are used to impart oil and water repellency to fibrous materials. Specification 857,689 is referred to.ALSO:Fibrous materials are rendered oil- and water-repellent by impregnating them in a bath containing 0.3 to 10% by weight of composition comprising (1) from about 3 to about 25% by weight of a polymer prepared from at least one perfluoroalkylsulphonamidoalkyl acrylate or methacrylate, and (2) from about 75 to 97% of a polymer of at least one vinylidene compound free from fluorine attached to non-vinylidene carbon atoms (see Division C3), and thereafter expressing the excess liquid from the material to effect a dry pick-up of between 0.3 and 10% of total solids, the pick-up being equivalent to at least about 0.03% on the weight of the material of the fluorinated monomer, and heating the resulting fibrous material at from 165-195 DEG C. for at least 15 seconds.  The composition may be applied to the fibres either as a solution or as an aqueous dispersion.  Fibrous materials specified are those derived from cotton, regenerated cellulose, cellulose nitrate and acetate, ethyl cellulose, silk, nylon, polyesters and polyacrylonitrile. Example (2) describes the treatment of cotton poplin fabric with aqueous dispersions containing poly(2-(N-n-propylperfluorooctylsulphonamide) ethyl acrylate) and poly (n-octyl methacrylate) or polychloroprene.  Specification 857,689 is referred to.
Patent GB-280978-A (GB)
Title: Improvements in bobbins or like bodies of yarn or thread and in the winding of and mechanism for winding such bobbins or like bodies of yarn or thread
IPC: B65H54/16
Filed: 1926-06-23
Abstract: 280,978. Kershaw, G. June 28, 1926. Winding-machines.-To wind a bobbin of yarn c, the formation of which is shown diagrammatically in Fig. 1, each layer comprising portions wound in spirals of opposite hands, the threadguide is given two reciprocating movements, the first producing the trace i, the second a more frequent reciprocation of varying extent to produce the trace a, so that the thread guide attains successively the maximum heights e - - h. The main supports k for the yarn guides s, Fig. 2, are traversed vertically through rack-and-pinion gear. ing l, m driven from a shaft n, Fig. 3, and during this traverse the shaft w is reciprocated horizontally, the end cap z on the shaft w being forced by a spring y to follow the inclined surface 1 of the plate 2. An eccentric cam v, of the same minimum radius throughout its length is mounted on the shaft w, and engages a bowl u on an arm q which supports the thread-guide supporting rod r from the shaft p, the lateral movement of the shaft w resulting in the bowl u being engaged by different parts of the cam v whereby the threadguides are given the supplementary traverse. The spindles 20 are driven by bands 19 from a shaft 17 which also drives the shaft w through a chain 9. In addition to " bottle " bobbins as shown in Fig. 1, warpers bobbins having two flat ends may be wound by substituting the plate 21 having opposite inclines 22, 23, Fig. 5, for the plate 1 and maintaining the primary traverse of the supports k constant. The cam v may be set by a stop collar v<1> to give a uniform supplementary traverse to wind bobbins having rounded or conical ends. The first Provisional Specification describes an alternative to the cam v. the device embodying a crank and connecting-rod.
Patent GB-921180-A (GB)
Title: Improvements relating to fibre combing machines
IPC: D01G19/04
Filed: 1961-05-02
Abstract: 921,180. Combing-machines. WHITIN MACHINE WORKS. May 2, 1961 [May 18, 1960], No. 15897/61. Class 120 (1). A sword 17 for supporting the fringe of fibres extending from the detaching rollers of a combing-machine has a roughened fibre-engaging surface 20 and may also be provided with a row of teeth 21. The roughening may be provided by making the face of the sword itself uneven or by applying an abrasive to it. Specifications 651,411 and 835,986 are referred to.