baber/WOPTO huggingface dataset:
Patent GB-1000586-A (GB)
Title: Clutch release mechanisms
Inventor: STEPHENS DOUGLAS PRICE
IPC: F16D23/12
Filed: 1963-06-26
Abstract: 1,000,586. Clutch control. FORD MOTOR CO. Ltd. June 12, 1964 [June 26, 1963], No. 25338/63. Heading F2L. A clutch release lever 5 which engages the operating collar 3 at transversely spaced points through a C-shaped intermediate member 31 is capable of rocking about a vertical axis B-B perpendicular to the pivoting axis A-A so that the resultant force acting on the lever passes substantially through the axis of the collar. In the arrangement shown the lever 5 bears against a washer 39 held in position by a locating pin 41 engaging a boss 35 on the clutch casing, the washer 39 engaging an intermediate member 37 with vertical ribs 51, 53 and about whose edges the washer may rock. In a second arrangement, Fig. 6 (not shown), the washer rolls around the surface of a vertical circularsection pin passing through the pin 41. Reference has been directed by the Comptroller to Specification 888,336.
Patent GB-1477092-A (GB)
Title: Tunnelling machines
IPC: E21D9/087
Filed: 1975-06-13
Abstract: 1477092 Tunnelling machines ROBBINS CO 13 June 1975 [20 June 1974] 25366/75 Heading E1F In a tunnelling machine the front and rear shields 80, 82 are telescopically joined together. The front shield 80 carries a power driven rotary cutter head means feeding a spoil-removing conveyer extending through the shields. Thrust rams 130 are provided between the two shields for pushing the forward shield forwardly relative to the rear shield while the cutter head means is being operated to mine the tunnel face. and also pull the rear shield forwardly relative to the front shield. The rear shield includes a gripper assembly for reacting against thrust and torque exerted on the rear shield and a rearwardly extending tail section under the protection of which portions of a tunnel lining can be erected as the machine advances. Preferably auxiliary thrust rams 86 extend rearwardly from the rear shield to react against forward portions of the tunnel lining. A pair of side placed piston cylinder units 154 may be interconnected between frame portions of the two shields to serve to transmit counter rotational torque to the cutter head support of the front shield. Specification 1477091 is referred to.
Patent GB-518678-A (GB)
Title: An improved woven fabric and loom
IPC: D03D35/00
Filed: 1938-08-30
Abstract: 518,678. Shuttleless looms and fabrics made thereon. TURNER & CO., Ltd., L., and DAVIS, H. Aug. 30, 1938, No. 25393. [Classes 142 (ii) and 142 (iv)] A fabric, more particularly a narrow fabric with some elastic warp-threads, has loops of weft thread 11, 12 laid in from the opposite selvages and locked at a point within the fabric. The wefts 11, 12 may be caught at their crossing point by a latch needle 15, Fig. 6, and drawn through a loop formed in the wefts of the previous pick as shown in Fig. 1, only one weft 11, Fig. 7, may be caught by the needle 15 and drawn through a loop formed in the weft 11 of the previous pick as shown in Fig. 2, or a separate warp thread 10<1>, Fig. 3. may be knitted. into a chain the loops 110 of which pass through the bights of both wefts 11, 12 as shown in Fig. 3.
Patent GB-961684-A (GB)
Title: Optical projectors
IPC: G03B21/16
Filed: 1961-07-14
Abstract: 961,684. Optical projectors; cooling. BRAUN A.G. July 14,1961 [Aug. 4, 1960], No. 25549/61. Heading G2J. A projector is fitted with a transverse flow blower for cooling its lamp housing and its picture gate. The blower may be arranged as a pressure or a suction blower and may be parallel to the projector optic axis or perpendicular thereto. In Figs. 1 and 2, the blower 8, arranged as a pressure blower and driven by a motor 7, is mounted below the illumination system 2-4 and picture gate 5. An angled plate 12 is provided to deflect part of the air stream to the gate 5. In Fig. 3, the blower 22, arranged as a suction blower and driven by a motor 24 is mounted perpendicular to the optic axis of the projector and behind the reflector 18 of the illumination system 18-20. Deflector plates 28, 28<SP>1</SP> are provided to alter the direction of the cooling air stream as required.
Patent GB-1349214-A (GB)
Title: Rollers and axles
IPC: A47L15/50
Filed: 1972-06-01
Abstract: 1349214 Mounting for free relative rotation ITW-ATECO GmbH 1 June 1972 [3 June 1971] 25746/72 Heading F2U A roller 2 having a tapered bore 13 converging from an annular enlargement 12 is mounted for free relative rotation on a hollow axle 1 with a tapered surface 4 and a flange 3 engaging the bore 13 and enlargement 12 of the roller which is located axially between the flange 3 and a peripheral bead 5 at the narrow end of the taper, where the roller is sufficiently resilient to be pushed over the bead. The hollow in the axle 1 may be blind and may house one limb of an L-shaped support 15. The open end of the hollow may be closed by a cap 16 hinged at 17. Alternatively the bore may be threaded and have a support screwed into it.
Patent GB-805445-A (GB)
Title: Improvements in and relating to holders for thermionic valves, electrical plugs or other electrical devices having projecting terminal prongs
Inventor: CLEWES ANTONY BRASHER
IPC: H01R33/76
Filed: 1955-09-08
Abstract: 805,445. Holders for thermionic valves. CARR FASTENER CO. Ltd. Aug. 24, 1956 [Sept. 8, 1955], No. 25785/55. Class 38 (1). In a valve-holder comprising socket contacts 3, with tails 10, which are mounted in bores 2 in a body 1 by passing the tails through apertures 12 and bending them outwardly at 13 and then downwardly, the ends 15 of the tails are tapered to facilitate their entry through aper- . tures 20 in a panel 8 carrying a printed circuit 22 to which the tails are ultimately connected by bending them over at 24 and dip-soldering. The holder is primarily attached to the panel by a central sleeve 7 which has snap-fastener engagement with an aperture in the panel. Other shapes of tail are described (Figs. 4-6, not shown) wherein the end 15 has both a parallelsided and a tapered portion.
Patent GB-482284-A (GB)
Title: Improvements in the electrical production of musical tones by electro-static means
IPC: G10H3/10
Filed: 1936-09-23
Abstract: 482,284. Electrical musical instruments. MIDGLEY, A. H., and MIDGLEY, A. M. Sept. 23, 1936, Nos. 25789 and 26200. [Class 88 (ii)] In an electrical musical instrument in which undulating potentials are produced electrostatically, each electrode (e.g. wave ring 2) to be charged is connected to one pole (or earth) of the main source of potential 5 by a resistance 9, and any potentials are applied to the electrode through resistances 22 in parallel, each resistance 22 being greater than resistance 9. In this way, when any generator 2 is connected to a number of potential sources (as may occur in depressing on one keyboard two keys having partials of the same pitch, or with corresponding keys on different keyboards, or with more than one stop drawn) an additive effect is produced. The stationary disc 1 carries insulated wave-forms 2 for all the notes of the chromatic scale, the number of undulations in each ring increasing in the ratio <12>#2. The rotating disc 3 is similar to the disc 1 except that the rings are connected together and to earth at 4. Each ring 2 on the disc 1 is connected through a condenser 6 to the amplifier 16 and loud-speaker ; and through a fivemegohm charging-resistance 7, and the leak resistance 9 in parallel with a condenser 8, to earth at 4. The condenser 8 and resistance 9 control the time-length of a reverberation or sustaining effect following release of a key. Each key 20 has twenty-four contacts 21, all operated at each key depression and respectively contacting with twenty-four bus-bars 18. These contacts and bus-bars are sufficient to provide seven partials at each of seven stoppitches (16 ft., 8 ft., 5 1/3 ft., &c.), some partials at one stop-pitch being repetitions of those at another stop-pitch. Each generator 2 is connected through key-resistances 22 in parallel, to the appropriate contacts of those keys the corresponding notes of which it serves as a partial. The bus-bars 18, which thus charge the rings 2, are individually connected to earth through resistances 27, and are themselves charged through contacts 26, which contacts are made on drawing a stop and are preconnected each through a resistance 28 to any desired tap 29 on a potentiometer 30 connected to the source 5. Each resistance 27 should be less than a resistance 28. The potentials of the potentiometer bus-bars 29 are arranged to increase in equal decibel increments. A swell pedal 32 controls a volume resistance 31. Specifications 403,444, 433,050, and 453,846 are referred to.
Patent GB-261525-A (GB)
Title: Improvements in or relating to electric heating apparatus
IPC: H05B3/74
Filed: 1925-10-15
Abstract: 261,525. Automatic Telephone Manufacturing Co., Ltd., and Archer, C. H. Oct. 15, 1925. Electric hot-plates.-An electric hot-plate comprising a metal frame 6 supporting a slab of refractory material 1 containing a heating element 4 is provided with a plurality of adjustable clamps 9 extending from the sides of the frame and with radial arms 11 extending from the sides to the centre. The clamps 9 have screw shanks engaging elongated holes in projections 7 in the frame. The slab 1 is provided with grooves 2 and ribs 3 for receiving the bare helically wound conductor 4, drain holes being formed in the grooves 2. A hole 12 may be provided for a central securing bolt.
Patent GB-688981-A (GB)
Title: Electrical measuring apparatus
IPC: G01D5/22
Filed: 1950-10-24
Abstract: 688,981. Electric control systems. FOXBORO CO. Oct. 24, 1950 [Oct. 29, 1949], No. 25884/50. Class 40 (i). An impedance bridge for producing an output voltage corresponding to a variable, e.g. pressure, has separate manual adjustment of a core within a multiple coil for bridge zeroizing and adjustment of the location of the multiple coil relative to an associated structure for phase balancing the bridge. As shown, Fig. 2, the movements of a diaphragm 12 responsive to the difference of two pressures applied at A, B moves a core within a pair of coaxial coils 15, 16 connected with similar coils 18, 19 as the four arms of a Wheatstone bridge. The coils 18, 19 are mounted on a sleeve 32 against a shoulder 33 which is. adjusted, by means of the threaded portion 34 and lock nut 35, relative to the metal cover plate, to match the effect of the pressure chamber cover plate 26 on the coil pair 15, 16 i.e. to phase balance the bridge. Zeroizing of the bridge is effected by axial adjustment of the core 21 by means of the rod 36 threaded into the extension 34 and a lock nut 37. The output of the bridge is fed to a selfbalancing bridge Fig. 1 (not shown) which actuates a recorder in accordance with the variable being measured.
Patent GB-628098-A (GB)
Title: Improvements in fluid pressure operated electric switches
IPC: H01H35/34
Filed: 1947-09-26
Abstract: 628,098. Actuation of switches. SPEED DEVELOPMENT CO, Ltd., FULLER, R. C., and RUFFLE, W. H. Sept. 26, 1947, No. 26171. [Class 38(v)] In a fluid-pressure operated switch having a diaphragm 6, the movable contact 2 is formed by the head of a stud 2' slidable in an insulating sleeve 19 in the fixed ring contact 1. A spring 16 adjustable by a screw 15 acting on an abutment-lever 12, bears on a brass washer 17 secured to the stud 2<SP>1</SP> and abutting on the flange 19' of sleeve 19. The contact 1 thus acts as a stop for the contact 2 in both directions so that strain on the diaphragm by the fluid and spring pressure is prevented. Contact 1 is connected to a terminal 9 and contact 2 to terminal 10 through pivot 11, lever 12, and spring 16. A carbon annulus may be arranged between contacts 1, 2, so that on opening, the reduction of pressure on the carbon increases the circuit-resistance until the circuit is broken, Fig. 2 (not shown). In a modification, Fig. 3, (not shown), the contact 2 bridges two half-annulus pieces respectively connected to terminals 9, 10. Reference has been directed by the Comptroller to Specification 608,669.
Patent GB-916694-A (GB)
Title: New arylazogrisans and their preparation
Inventor: MORLEY JOHN SELWYN
IPC: C07D307/94
Filed: 1960-07-29
Abstract: The invention comprises grisan derivatives of the general formula:- <FORM:0916694/IV (b)/1> wherein Ar stands for the phenyl radical, optionally substituted by alkyl, alkoxy or carbamyl groups or with halogen atoms, together with a process for their preparation by coupling the appropriate aryl or substituted aryl diazonium salt with griseofulvic acid, preferably in the form of its alkali metal salt and at a temperature between 0 DEG  and 10 DEG C. in the presence of a buffer which maintains the pH at 6-8.  Examples detail the use of diazotised aniline, p-chloraniline, o-anisidine, o-phenetidine, o-n-butoxyaniline, p-anisidine, o-toluidine, p-n-butylaniline, and p-aminobenzamide.  The compounds exhibit anti-fungal properties similar to griseofulvin.
Patent GB-335351-A (GB)
Title: Improved mechanism for operating change-speed gearing
IPC: B60W30/18
Filed: 1929-08-30
Abstract: 335,351. Morgan, H. R. Aug. 30, 1929. Controlling variable-speed gearing. - Gearshifting forks such as T<2>, Fig. 1, are operated in sequence by a cam drum R which is turned one step on each depression of the engine-clutch pedal in direction for gearing up or down according to the setting of a preselector, not shown, on, say, the steering column of a vehicle. The preselector, which has only two positions and a neutral, is geared so as to tilt a cam E, Fig. 4, which is operative to tilt a pawl W into engagement with an upper ratchet rack V<3> or a lower one V'. The ratchet racks V<3>, V<4> are rigid with spur racks V<1>, V<2>, Fig. 1, both meshing with a pinion R<4> on the drum R. Thus a one-tooth step given to either of the racks V<3>, V' yields a rotary speedchanging step to the cam drum for changing up or down respectively. The pawl W is supported in a reciprocal carriage W<2> normally locked by a trip pawl X, Fig. 5. Actuation of the pedal lever, after the preselector has been set, opens the main and isolating clutches and moves a slider Y' to the left, compressing a spring G against carriage W<2>. A cam Y on slider Y<1> releases pawl X, whereupon spring G shoots carriage W<2> against a stop A, thereby turning cam barrel R and effecting the speed change rapidly. A spring U, Fig. 1, in each striker fork allows the actual enmeshing to take place when possible. Alternative means for turning the cam barrel R directly from the slider Y<1> is shown in Figs. 9 and 11. The end of the barrel is formed with stepped ratchet notches N adapted to be engaged by a reversible pawl 0 carried by the slider Y'. The pawl. 0 is reversed from the preselector by turning an eccentric P engaging the rear end of the pawl, which moves in a conical path from one operative position to the other.
Patent GB-482515-A (GB)
Title: Manufacture of condensation products containing nitrogen and sulphur
IPC: C07D515/10
Filed: 1936-09-30
Abstract: A tertiary amine is heated with a metal salt of an aliphatic halogensulphonic acid to yield, with elimination of metal halide, a condensation product believed to be of the sulphobetaine type (cf. Specifications 446,269 and 446,337).  The reaction may be effected in the presence or absence of a solvent, which may be an inert solvent or an excess of tertiary amine.  Water may also be present in the mixture, and metal halogensulphonates containing water of crystallization may be used.  The reaction temperature may be above the boiling point of the amine, and the process may be effected under pressure.  Examples are given of the manufacture of products from (1) sodium a -chloro-b -hydroxypropane-g -sulphonate and pyridine, triethylamine, quinoline, and ethanoldiethylamine, (2) sodium chlorethanesulphonate or bromethanesulphonate or potassium chlorethanesulphonate and pyridine, and (3) calcium a -chloro-b -hydroxypropane-g -sulphonate and pyridine.
Patent GB-811581-A (GB)
Title: Extrusion apparatus for coating wires and the like
Inventor: DAVIS BENJAMIN HASKELL
IPC: B29C48/06
Filed: 1956-08-30
Abstract: 811,581. Coating wires &c. by extrusion. STANDARD MACHINERY CO. Aug. 30, 1956, No. 26567/56. Class 87(2).. An extrusion head for covering a core C with plastic material comprises a head 284 with a cylindrical aperture 104 having an extrusion die 98 at one end and a transverse inlet 288 between its ends, a core tube 122 in the aperture and in the annular space between the core tube 122 and the wall of the aperture 104 a helical guide 282 of gradually decreasing diameter so that some of the plastic material will flow in an axial direction over the guide and some will flow helically around the guide to facilitate uniform delivery to all parts of the die. The helical guide and core tube may be integral.
Patent GB-1470771-A (GB)
Title: Manufacture of dental crowns
IPC: A61C5/77
Filed: 1974-06-04
Abstract: 1470771 Dental moulding TECHNICAL DENTAL DEVELOPMENTS (LONDON) Ltd 4 June 1974 [4 June 1973] 26597/73 Heading B5A [Also in Division A5] The method of moulding suitable for making a model of a cut tooth on which a crown is to be mounted, as described in Specification 1,302,023, is modified in that the liquid polyester resin is filled with balls of a material, other than metal, which is inert to the polyester resin and has a higher specific gravity than said resin, materials such as glass, a silicate or silicon carbides being suitable. The liquid resin also contains an inert filler, such as quartz or calcium filler, so that the casting material is in the form of a paste. The size of the balls is such that they pass through a screen having a mesh size in the range from 120 to 300 perforations per inch, the balls being of equal size.
Patent GB-1271499-A (GB)
Title: Improvements in or relating to a supporting structure
Inventor: MELSHER FRANCIS GEORGE
IPC: D06F57/08
Filed: 1968-06-04
Abstract: 1,271,499. Gravity catches. PATON CALVERT & CO. Ltd. 4 June, 1969 [4 June, 1968], No. 26632/68. Heading E2A. [Also in Division A4] A collapsable clothes-airer is retained in erected position by a catch 34 integral with a crossbar 30 rotatably mounted in lugs 32 of a frame 14 and gravity-urged into engagement with a cross bar 18a of a frame 16. The bars 30 and 18a are retained in spaced relationship by the catch 34 which has a handle knob 38 by which the catch is rotated upwards to displace the centre of gravity of the catch to the side of the bar 30 remote from the bar 18a for release of the frames, which collapse under gravity. A catch 34 is provided at each side, or in the centre, of the cross bar 30. The invention is stated to be applicable to deck chairs and to folding tables.
Patent GB-748160-A (GB)
Title: Process for the preparation of monocarboxylic acid cycloalkylidenehydrazides
Filed: 1953-09-29
Abstract: Compounds of the formula <FORM:0748160/IV(a)/1> wherein A is a monovalent residue of a saturated or unsaturated hydrocarbon having one to eight carbon atoms, or an aryl radical which may be substituted by a halogen or nitrogroup, and n is 1 to 6 may be prepared starting from an ester, chloride or anhydride of the acid A.COOH, from hydrazine and from the appropriate cycloalkanone.  In the examples: (1) cyclopentanone is mixed, while cooling, with aqueous hydrazine hydrate, the mixture is warmed and after cooling, propionic anhydride is added.  Reaction at 50 DEG  to 60 DEG  C. yields 1 - propionyl - 2 - cyclopentylidene hydrazine; (2) o-nitrobenzoic acid hydrazide, prepared from the acid chloride and hydrazine hydrate in benzene, is stirred in water with cycloheptanone to yield 1-o-nitrobenzoyl-2-cycloheptylidene hydrazine.
Patent GB-139453-A (GB)
Title: Improvements relating to watch cases
IPC: G04B37/05
Filed: 1919-10-31
Abstract: 139,453. Beaulieu Watch Co. Feb. 22, 1919, [Convention date]. Cases, watch. - The frame c of the movement is held in the rim a by one or more incomplete springs d, which are held in the rim by lugs d<1> engaging in recesses e in the rim and which are provided with apertures f with which engage pins g on the frame c.
Patent GB-444397-A (GB)
Title: Improvements in gas governors
IPC: G05D16/06
Filed: 1934-09-19
Abstract: 444,397. Gas governors. PARKINSON & COWAN (GAS METERS), Ltd., and PARKINSON, B. R., Terminal House, Grosvenor Gardens, Westminster. Sept. 19, 1934, No. 26905. [Class 135] A gas governor comprises a diaphragm, supported between plates s and t and carrying a main valve member c, which is acted upon through a hole u in the plate t by the pressure of gas from an inlet e. A calculated orifice d in the diaphragm supplies gas to a pilot governor comprising a spring-loaded diaphragm h with a valve k controlling a passage f in the plate s, from where the gas passes through a duct x to the outlet m. When the outlet pressure falls due to an increase in the demand, the pressure on the diaphragm h falls and the pilot valve k opens further so that a fall in pressure above the main diaphragm results and the higher pressure of the gas from the inlet e acting below the main diaphragm opens the main valve c further to increase the supply. When the pressure rises too high in the outlet the reverse action takes place and the valve c tends to close. The duct x from the pilot governor is taken to a point just at the outlet of the main valve so that an aspiratory effect is produced by the flow of the gas through the main valve on the pilot governor which, on increase in gas flow, causes the pilot valve to open further, which in turn causes a greater opening of the main valve, with a consequent increase in pressure at the outlet with increase of flow. The hole u in the plate t is made of a slightly larger area than the orifice d in the main diaphragm and its function is to prevent hunting. Liquid sealed bells may be used in place of the diaphragms.
Patent GB-463484-A (GB)
Title: Improvements relating to electrical stop mechanism for circular looms
IPC: D03D37/00
Filed: 1935-09-30
Abstract: 463,484. Circular looms; starting and stopping looms; electric switches. BRITISH CELANESE, Ltd., HALE, F. C., and YORKE, J. R. Sept. 30, 1935, No. 27016. [Classes 142 (i) and 142 (ii)] In a circular loom, stoppage is effected when any one of a number of electric switches 15 (one for each shuttle 1) arranged in series is opened by a rod 12 slidably mounted in the shuttle and carrying at its front end a warp feeler 13, the switch comprising contact blades 20, 21 carried by the two levers 18, 19 of a toggle arrangement. The contact blades merely abut without any sliding action, and are held in open or closed position by a spring 24, thus indicating the position of the cause of stopping. Specifications 424,789 and 457,104 are referred to. According to the Provisional Specification the switch may also control a pilot light.
Patent GB-204902-A (GB)
Title: Improvements relating to the vulcanisation of rubber
IPC: C08K3/30
Filed: 1922-10-06
Abstract: 204,902. Skellon, H., Roberts, T. H., and Clarke, H. B. R. Oct. 6, 1922. Vulcanizing compositions. - A vulcanizing accelerator consists of the material formed by the reaction of zinc or cadmium sulphate and ammonia, with the addition, if not already present in the mixing, of free zinc oxide. In an example, to a mixing consisting of 48 per cent rubber, 49 per cent fillers, and 3 per cent sulphur is added 1-2 per cent of the rubber of a mixture of equal proportions of penta amino zinc sulphate and zinc oxide, and the mixing is vulcanized in 20 minutes at 40 lbs. steam pressure. Specification 4955/14 is referred to.
Patent GB-1362769-A (GB)
Title: Sewing machine
IPC: D05B51/00
Filed: 1972-06-09
Abstract: 1362769 Sewing machines JANOME SEWING MACHINE CO Ltd 9 June 1972 [9 June 1971] 27189/72 Heading D1G The take-up lever 6 in a sewing machine has a thread receiving hook 11 at its end, and is totally enclosed within the sewing machine. The end of the lever moves inside a cover 12 in which there are two open ended slits 15 for the thread to pass through. The take-up lever has three arms 6, 7, 9; -it is pivoted on a shaft 8 and driven by a crank pin 5 operating on arm 7.