baber/WOPTO huggingface dataset:
Patent GB-223631-A (GB)
Title: A new or improved apparatus for trimming and shaping sheet metal receptacles
IPC: B21D51/52
Filed: 1923-06-25
Abstract: 223,631. Rhodes, C. J., and Berry, G. W. June 25, 1923. Hollow-ware; hinges.-Sheet metal boxes are trimmed by an aperture cutter and if desired the pops for hinge pins are formed at the same time. The boxes x are fed by gravity or other means between guides a, a<1>, Fig. 2, the former having a hinged flap a<2> which is opened by an adjustable projection b<11>, Fig. 1, on a feed rod b<1> to allow the two foremost boxes to fall into holders d, d<1> fixed and slidable respectively on the rod b<1>. When the rod b<1> advances to bring the foremost box in line with the left-hand die e a tail d' on the holder d<1> strikes an adjustable stop d<4> and arrests the second box opposite the second die. Resiliently mounted pads f, Fig. 2, actuated by a lever f<3> and cam f<4>, then push the boxes over the dies and partly through an apertured cutter h which is then reciprocated by a cam h<6>, Fig. 1, to trim them and is returned to its intermediate position ready for the next operation. Ejectors i, Fig. 2, moving synchronously with the returning pads by reason of a link j, lever j<1>, and trigger j<2>, then push the boxes back slightly to allow the pops, for the hinge wires, to be formed by a die g which is actuated by adjustable rods g<6>, linkwork g<7> - - g<10> and a cam g<11>. The upper and lower faces e<2>, e<1>, Fig. 5, of the die e move down in unison, against the action of springs e<4>, during the action of die g and the fixed die g<2>. The ejectors i then push the boxes into the feedway, the bar b<1> having been withdrawn into its original position, and at the next operation an abut. ment on the bar b<1> pushes them along. The holder d<1> is normally held against the holder d by a spring d<2> and the ejectors i are returned by springs i<2> when the trigger is tripped by an adjustable projection j<6>. The trigger is set, on the return of the lever j<1>, by a projection j<6>. The trimmings, which are in the form of rings, are severed by a fixed blade h and a blade k<1> moved by linkwork k<3>, k', k<5>, g<7> &c. The bar b' is reciprocated by a cam b<6> and spring b<10>. The cam shafts are driven through the gearing shown from a clutch l<3>, preferably constructed as described in Specification 214,334, [Class 80 (ii), Gearing, Variable-speed &c.], and operated by a lever l. The Provisional Specification describes hooks for dragging the trimmings across the fixed blade and thus severing them.
Patent GB-746381-A (GB)
Title: Controlling disengageable rotating couplings
Inventor: BILL ARTHUR
IPC: F16D25/061
Filed: 1953-06-15
Abstract: 746,381. Operating positive clutches. ROLLS-ROYCE, Ltd. June 15, 1954 [June 15, 1953], No. 16472/53. Class 80(2) A clutch for use in an alternator drive comprises a driving member 16 and an axially movable driven member 22 having interengageable means, such as helical teeth 19A, 22A or inclined dog teeth, of the type tending to separate under load, and an axially' slidable sleeve 25, which carries the driven clutch member, splined &c. at 26 to a fixed casing 27 but prevented from moving axially to allow the clutch to disengage by locking means 29, &c. Balls 29, engaging in an annular groove 30 in the sleeve 25 and in holes 31 in the casing 27, are normally prevented from moving radially outwards, to allow the sleeve to slide axially, by a surrounding sleeve 44. Lubricating oil under pressure is supplied to passages 32, 34 and escapes through an electromagnetically controlled valve 40 to return to a casing (not shown); the valve is closed, either automatically or by hand, when the alternator becomes excessively heated &c., and oil under pressure then passes to an annular cylinder 38 containing a piston 43 which is accordingly pushed downwards together with the sleeve 44, against the bias of a spring 45, from the position shown in the left-hand half of the Figure until recesses 46 in the sleeve are opposite to the balls 29. The balls then move radially outwards, the clutch teeth 19A, 22A separate and the sleeve 25 slides upwards to the position shown in the righthand half of the Figure. To re-engage the clutch, the alternator is removed and the driven clutch member 22 moved downwards to its engaged position against the bias of a light spring 48. The balls 29 can then move radially inwards and the piston 43, &c., is restored to its original position, as shown in the left-hand half of the Figure, by the spring 45. A shaft 51 which drives the alternator has a splined connection 52 with the driven clutch member 23 to allow the latter to move axially.
Patent GB-829864-A (GB)
Title: Improvements in or relating to automatic dew-point detecting apparatus
IPC: G01N25/70
Filed: 1956-05-28
Abstract: 829,864. Hygrometric apparatus; turbidometers. ILLINOIS TESTING LABORATORIES Inc. May 28, 1956 [May 31, 1955], No. 16482/56. Class 97(3) [Also in Groups XXXV and XL(b)] A dew-point detecting apparatus of the fog chamber type comprises, a gas expansion chamber 26 having inlet and outlet valves 24, 28 associated with means which operate the valves in a predetermined sequence over repeated cycles, to introduce gas into the chamber, expand the gas in the chamber and then expel the gas from the chamber for each cycle, a collimated light beam 190 being directed through the chamber 26 on to a conical lens 200 having its axis parallel with the beam and its conical surface pointing away from the light source 170, the lens being such as to transmit only uncollimated light 244 resulting from light scatter due to fog, photoelectric device 222 being provided which is operative by light passing through the lens to operate electrical means which indicates the presence of fog. The electrical means, which includes a thermionic amplifier driving a relay which controls indicating means, is responsive to the change of output of the photo-electric device due to the formation of fog and is associated with gating means for preventing operation of the relay except when the condition of gas expansion occurs in the chamber 26. The operation of the valves 24, 28, and of the gating circuit of the indicating means are controlled by electrically driven cams. The amplifier includes a filter for rejecting the ripple frequency due to flicker of the light source 170. In its preferred form the lens 200 is provided with a concavely conical lower surface 202<SP>1</SP>, Fig. 7. To prevent super saturation of the gas a radio-active metal foil 250 is mounted in the chamber 26. The apparatus may be used to energize a control device for removing moisture from a gas to prevent the dew-point from exceeding or reaching a given value. Specifications 641,555 and 829,865 are referred to.
Patent GB-109882-A (GB)
Title: An Improved Finger Guard for Power Presses.
Inventor: RHODES CHARLES JOSEPH
IPC: F16P3/04
Filed: 1916-11-17
Abstract: 109,882. Rhodes, C. J., and Webb, T. H. Nov. 17, 1916. Guards, controlling. - A guard ior power presses, having a movement parallel to that of the ram, is lowered by the pedal release of the ram clutch and prevents the insertion of the operator's fingers below the upper tool. The guard consists of a ring a surrounding the ram furnished at the front with a perforated gauge plate a'. A rod f operated by the pedal g<1> first lowers the guard by means of a lever e pivoted at e<1>, and then actuates the ram clutch lever h. The rod f is in two parts connected by a block f<3> sliding in a guide f<2> against the action of a spring f<4>. An adjustable collar k limits the contraction of the rod f and determines the point at which the clutch is operated.
Patent GB-1049489-A (GB)
Title: Refuse sack container
Inventor: APPLEBY BERNARD DOUGLAS
IPC: B65F1/06
Filed: 1964-04-21
Abstract: 1,049,489. Refuse receptacles. DAVIDSONS PAPER SALES Ltd. April 21, 1965 [April 21, 1964], No. 16526/64. Heading A4A. [Also in Division B8] An adjustable platform 15 in the base of a guarded refuse sack container allows the container to be used with different sizes of sacks. The platform 15, preferably a heavy unit e.g. a concrete slab, may be positioned at the bottom of the frame as in Fig. 1 where it rests on a metal bracket 16 and two metal strips 17 secured to the bottom frame 2. In its alternative position the platform is located on three raised supports formed by two brackets 18 and a bracket 19 which is clipped on to the front of the bottom frame 2 and can be removed when not in use. In a modification the platform 15 may have a concave upper surface with a central opening for drainage and a crosspiece forming a handle. The container is further described in Specification 1,049,490.
Patent GB-606489-A (GB)
Title: Improvements in or relating to cathode-ray tubes, more particularly iconoscopes and circuit arrangements therefor
IPC: H01J29/43
Filed: 1946-05-31
Abstract: 606,489. Television. PHILIPS LAMPS, Ltd. May 31, 1946, No. 16542. Convention date, Sept. 22, 1939. [Class 40 (iii)] [Also in Group XL (a)] A cathode-ray tube such as an iconoscope has a coating 3, opposite the screen 2, which is unconnected externally except through a condenser 18 to a source of constant potential. The coating charges up until it no longer collects electrons, the condenser preventing highfrequency fluctuations. The subject-matter is identical with that of Specification 551,014.
Patent GB-238669-A (GB)
Title: Improvements in tuning coil holders for use in connection with wireless telegraphy and the like
IPC: H01F27/00
Filed: 1924-07-10
Abstract: 238,669. Fuller's United Electric Works, Ltd., and Welch, A. P. July 10, 1924. Wireless tuning-apparatus, adjustment devices for.-A tuning-coil holder has frictional contacts between the movable plug and socket holder and its support in order to dispense with flexible leads. The movable ebonite block 17 is mounted on trunnions passing through the flanges 18 of an ebonite or like bracket, at the back of which are arranged screwed studs 19 provided with nuts 20 and washers 21 serving as terminals. To the studs 19 are connected metal pieces 22 through which the trunnions pass, and which are electrically connected to the corresponding moving plugs and sockets by frictional engagement with metal pieces 23 fixed to the sides of the blocks 17 by screws 24. The lower trunnion 16 is provided with a nut 25 and spring washer 26, the upper trunnion being bent or cranked and provided with a socket 27 adapted to engage a plug on a removable handle which may be covered with ebonite. The upper bent trunnion may also be covered with ebonite 31. One or more movable coil-holders may be employed in conjunction with a fixed coil-holder. The coil-holder may be mounted in a cabinet which can be closed when the handles are removed.
Patent GB-1561283-A (GB)
Title: Pipe or cable clip
IPC: F16L3/13
Filed: 1977-04-22
Abstract: The clamping collar (3) has clamping legs (4, 5) and an elastically deformable foot part (7) with a receiving opening (8) for a fastening bolt (2). The foot part (7) is designed such that it is parallel to the receiving means (6) for a cylindrical element and is arched towards said receiving means. The receiving opening (8) for the bolt is located in the top region of the arched foot part (7). The receiving opening (8) is further enclosed by sprung lugs (9). The clamping collar can be easily fastened, with prestress, on the bolt (2), the clamping legs (4, 5) being temporarily pressed together during attachment. This clamping collar is suitable, in particular, for receiving pipes or cables. <IMAGE>
Patent GB-1356966-A (GB)
Title: Connector for a millmeter wavelength
IPC: H01P1/04
Filed: 1971-05-24
Abstract: 1356966 Waveguide couplings NIPPON KOKAN KK 24 May 1971 [25 May 1970] 16734/71 Heading H1W A coupling for circular waveguides 1, 2 comprises cylindrical spacers 3, 4 screwed on to the ends of the waveguides, a sleeve 10 co-operating with the spacers to hold the waveguide together, and rings 6, 7 screwed into the ends of the holding sleeve. The sleeve 10 engages spacer 4 by means of screw threads 14, and spacer 3 by means of annular abutment 13. Rings 6, 7 locate and compress annular seals 18, 19. A further seal in the form of an 0-ring 9 is located between the sleeve and the waveguide 2. The various parts are provided with accurately machined surfaces A, B, C for correct, rigid location of the waveguides. A modification is described (Fig. 2, not shown) in which the spacer 3 is provided with a threaded lock ring.
Patent GB-628342-A (GB)
Title: Improvements in or relating to moulds for castings
IPC: B22C9/04
Filed: 1947-06-25
Abstract: 628,342. Moulding processes. DE HAVILLAND ENGINE CO., Ltd., HALFORD, F. B., CLARKE, K. W., and PAGET, G. W. June 25, 1947, No. 16784. [Class 83 (i)] In forming a mould, e.g. for casting wax patterns for use in casting turbine blades or other small parts, a pattern C is pressed partway into plastic material B on a support A, easily fusible metal is applied thereto to form a half-mould D, the support A and material B are removed and, if desired, locating projections are formed on, or recesses D<SP>1</SP>, Fig. 3, in, the surrounding face of the mould D. Then easily fusible metal is applied to the face of the pattern and mould D to form the second halfmould D<SP>2</SP>, a fusible metal negative E, Fig. 5, is made from each half-mould D, D<SP>2</SP> without pattern, the faces of these are electro-plated or otherwise coated with nickel, chromium, or other hard metal F, Fig. 9, a backing G of hard metal is sprayed on, and the fusible metal E is removed by melting to leave a two-part mould, Fig. 10. The fusible metal may be applied by spraying or casting into a frame A<SP>1</SP>, Fig. 1. The backs of the negatives E may be coated with wax to prevent unwanted deposit of hard metal during electro-plating. The patterned surface of this deposit may be shot-blasted to ensure adhesion of the backing G. The base A may be made of glass or steel and B of the material known under the Registered Trade Mark " Plasticine."
Patent GB-545429-A (GB)
Title: Improvements relating to the manufacture of moulded goods
IPC: H02G3/08
Filed: 1940-11-22
Abstract: 545,429. Fibrous plastic compositions. CASSATT, E. B. Nov. 22, 1940, No. 16796. [Classes 70 and 87 (ii)] Boxes, electrical fittings &c. are moulded from material prepared in accordance with Specification 532,310, viz. waste leather fibres and rubber dough &c. The moulds may be used at up to 100‹ C., and linen cloth may be interposed between the dough &c. and the mould to prevent sticking. Laminated articles incorporating other materials may be made.
Patent GB-1214670-A (GB)
Title: Improvements in and relating to gas blast circuit-breakers
Inventor: BOERSMA RINTJE
IPC: H01H33/82
Filed: 1968-04-08
Abstract: 1,214,670. Gas blast switches. " COQ " N.V. 8 April, 1968 [13 April, 1967], No. 16832/68. Heading H1N. A gas blast switch has relatively movable contacts 11, 12 which carry the parts of a blast valve 20, 21 controlling the flow of compressed gas through a gap between the contacts, the valve parts being shaped so that there is a resultant force due to the compressed gas on the movable part 20 tending to close the contacts, and the movable part carrying a piston 14 operating in a cylinder 13 in a fixed contact holder to provide a force tending to open the contacts. The closing force is somewhat greater than the opening force and consequently maintains the contacts closed, but as soon as the parts of the blast valve are separated (by an actuator 29, 30 and linkage 25, 26) the pressures on either side of part 20 are equalized and the contacts rapidly opened by the action of the compressed gas on piston 14. Later, after the opening of a series isolator (not shown) the pressure in the outlet passages 16 and therefore behind piston 14 will also equal that inside chamber 22 and the contacts will be reclosed by a small piston 28 always subject to the compressed gas through conduit 25. Two series connected contacts may be provided carried by conductive supports 2, 3, 4 between insulating tubes 5-8 in an earthed metal tank 1. In a modification (Fig. 2, not shown) both contacts of a single break are movable and the reclosing force is provided instead by springs. In another modification (Fig. 3, not shown) the movable contact is held in the closing position by the reclosing force of a piston similar to 28 the two forces on the movable valve part being equalized.
Patent GB-351708-A (GB)
Title: Improvements in cooking devices
IPC: A47J27/12
Filed: 1930-05-31
Abstract: 351,708. Cooking-vessels. BARRY, J., Box 316, Melfort, Saskatchewan, Canada. May 31, 1930, No. 16887. [Class 66.] A cooking device comprises a closed container for the food to be cooked, having an outlet pipe leading from the bottom to an upstanding pipe or flue the length of which may be varied. The construction shown comprises a lower receptacle 15, having side walls 16, and a bottom 17 raised from the ground by a flange 18, in combination with a cover 19, comprising a side wall 20 and a top 21, fitting snugly within the lower receptacle. An outlet pipe 26 communicating with the bottom of the receptacle 15 leads through the flange 18 to a vertical outlet pipe 29, which comprises a number of sections 30 connected together for example by bayonet joints 31, so that the length of the pipe may be varied. Arranged within the cooker is a removable rack 22, comprising spaced vertical legs 23 with feet 24, shelves 25 being secured to the legs. The top wall 21 of the cover may be provided with an adjustable vent 32 and suitable handles may be provided on both the top and bottom portions of the cooker. In a modification the lower end of the bottom receptacle may be filled with heat-retaining material such as soap-stone, fireclay or asbestos cement, and the top cover may be provided with a shell of heat-insulating material. The cover and the lower receptacle may be provided with outer shells, spaced therefrom, so that the heated gases from the source of heat are directed around and over the surface of the cooker, escaping through a central hole in the top of the shell. The device may, if desired, be used as a steamer, water being placed in the lower receptacle and an extension piece placed over the outlet pipe 26 to raise it above the level of the water. A disc having an annular rim for receiving the lower edge of the vessel may be provided for the cooker to stand upon.
Patent GB-366403-A (GB)
Title: Improvements in and relating to end pieces or terminal ends for necklets
IPC: A44C5/18
Filed: 1931-06-10
Abstract: 366,403. Necklaces. EVERS, W. H., 11, Eastlake Road, Camberwell, London. June 10, 1931, No. 16939. [Class 43.] An end-piece or terminal for cord, chain or like necklets comprises a short tube 1 of metal or fine wire, having a loop 2 whereto a clasp may be attached, the tube 1 being of an internal diameter slightly larger than the diameter or width of the cord or the like to which it is secured by deforming, or soldering. The loop 2 may be a small ring, Fig. 7, or be formed of wire, Fig. 1, and may be soldered to the tube 1, so as to lie to one side of its centre, or it may be formed from the wire composing the tube 1. Part or the whole of the tube may be deformed in attachment. In application, one terminal is secured on the cord and beads or the like are threaded thereon. The second terminal is threaded on until it bears against the last bead and is then secured to the cord, the extending part of which is cut off.
Patent GB-1448732-A (GB)
Title: Sintered ceramic articles
IPC: C04B35/593
Filed: 1973-04-10
Abstract: 1448732 Sintering silicon nitride LUCAS INDUSTRIES Ltd 25 Feb 1974 [10 April 1973] 17032/73 Heading C7D Articles formed of or containing silicon nitride are made by sintering, the material being protected during sintering by a medium containing boron nitride and a substance which provides a silicon mononide vapour pressure greater than that of the said material in the sintering conditions, e.g. silica or a silicate. The material being sintered may be surrounded by a graphite component which is also provided with a protective coating which may include boron nitride, alumina or aluminium nitride. In an example a ceramic crucible is formed of a mixture of 79% silicon nitride, 10% aluminium nitride, 6% alumina and 5% magnesium oxide. The mix is isostatically cold-pressed, coated to a depth of 0À01-0À02 inch with an acetone suspension of silica with up to 80% of boron nitride, buried in boron nitride powder in a graphite die and heated to 1700‹C over 1 hour, the temperature being raised to 1850‹C over 20 minutes and held for a further hour.
Patent GB-560353-A (GB)
Title: Improvements relating to conveyor belt fasteners
IPC: F16G3/02
Filed: 1942-12-02
Abstract: 560,353. Belt fastenings. CHANDLER, T., and MORRIS, W. G. Dec. 2, 1942, No. 17151. [Class 80 (i)] A hinge type conveyor bell fastener has the portions which come to the sides of the belt sec tions to be con nected together closed so as tc constitute a cap over the edge of the belt at such portions. The twc parts a, b are hinged together at c, d. The ends of the parts a, b are closed at e and are tapered tc diverge from the hinge side. The rivet holes are countersunk at g so that under pressure of the rivet heads an increased grip on the belt is obtained.
Patent GB-1067049-A (GB)
Title: Demodulator circuit for signals of a colour television system
IPC: H04N11/16
Filed: 1964-04-24
Abstract: 1,067,049. Colour television. TELEFUNKEN PATENTVERWERTUNGS G.m.b.H. April 24, 1964 [April 24, 1963], No. 17159/64. Heading H4F. N.T.S.C. type colour sub-carrier signals which are modified in accordance with the P.A.L. method of operation (i.e. the modulation phase of " I " component is reversed during alternate lines) are separated into the " I " and " Q " components by adding and subtracting successive line signals by means of system 6-10 which includes a one-line-duration delay line 10 whereby the video signals may be derived by simple amplitude demodulators 11 and 12. The signals are transmitted in suppressed carrier form and in accordance with the invention the carrier is reinserted in common to both the " I " and " Q " components by an adder 2 which is placed before the delay line system 6-10 and to which the local sub-carrier oscillator 3, which is synchronized by the sub-carrier synchronizing " burst " over line 5, is connected. The local signal is set in phase at 45 degrees to the " I " and " Q " axis and is switched back and forth between + 45 degrees and- 45 degrees in successive lines as illustrated vectorally in Figs. 3 and 4 (not shown). In one arrangement (that shown in Fig. 1) the synchronizing " bursts " are at an invariable phase and the phase shift is introduced by a phase-shift circuit 4 controlled by line synchronizing pulses 15. In another arrangement (not illustrated) the synchronizing "bursts" change in phase appropriately and the local oscillator 3 is controlled on a start-stop basis so that it commences operation with the proper phase at the commencement of each line.