baber/WOPTO huggingface dataset:
Patent GB-1316926-A (GB)
Title: Cartridge type camera
IPC: G03B19/20
Filed: 1971-07-22
Abstract: 1316926 Cameras EASTMAN KODAK CO 22 July 1971 [23 July 1970] 34475/71 Heading G2A A cartridge-type camera has an optical system for folding the optical path between the objective lens and the film plane along at least three successive axes, the system also including zooming and compensating lens components. Fig. 1 shows a motion picture camera 10 having a door 38 hinged at 40, the volume 30 within the camera being occupied by the film cartridge 12. This is of the Super 8 type, the film passing from a supply spool to a take-up spool across an opening 26. When the camera is closed, opening 26 lies beneath an exposure aperture 48 in a partition 44 separating an upper compartment 42 from volume 30. The optical system for folding the light path is shown more clearly in Fig.2. Light from the scene to be photographed enters through an opening 49 which has a transparent cover 50, in the front wall of the camera. This wall also has two other openings, one containing a rangefinder lens 52 and the other a viewfinder lens 54. Light entering the camera through opening 49 (50) is reflected by two mirrors 58, 60 through a relay objective 70 and aperture 48 on to the film at opening 26. Between the two mirrors is a zoom system 62 comprising an objective 64 in an axially movable mount 65, a zooming component 66, and a compensating component 68. Zoom control is accomplished by turning knob 57 which has a ramp portion 72 controlling, through a lever and linkage system 73-77, the movement of components 66 and 68. Focusing adjustment of objective 64 is controlled by a ring 85 which extends through the camera wall. Figs. (not shown) 3-11 show various modifications, with different dispositions of the zoom system, the drive system, and the two mirrors, different means of loading and mounting the cartridge, etc. In Figs. (not shown) 12-15 the camera construction and format is such that four mirrors are used to fold the light path. Fig. 16 (not shown) is a still camera embodying the invention.
Patent GB-1116349-A (GB)
Title: Manufacture of composite articles
Inventor: EDWARDS HARRY
IPC: B29C35/08
Filed: 1964-08-24
Abstract: 1,116,349. Laminates. IMPERIAL CHEMICAL INDUSTRIES Ltd. 6 Aug., 1965 [24 Aug., 1964], No. 34511/64. Heading B5N. A process for the continuous manufacture of laminated articles consisting of a polyurethane foam core sandwiched between and bonded to two sheets of facing material comprises imparting motion to the lower of the said sheets of material, applying a layer of a liquid mixture of polyurethane foam-forming ingredients to a surface of the said sheet while it is in motion, heating, at least in part by radio frequency heating to bring about foam formation in the said layer and imparting motion to the other of the said sheets of materials so as continuously to bring it into contact with the free surface of the foam before setting thereof is complete. Radio frequency heating means heating under the influence of an electric field having a frequency above 50 megacycles per second, such as 80, 892 and 2,450 megacycles. Suitable sheets of material includes sheets or boards composed of paper, wood, paperboard, plaster board or asbestos and certain plastics and rubbers. Other methods of heating may be used if desired to supplement the radio frequency heating, for example the sheet or sheets of material may be preheated by exposure to a source of radiant heat such as an infra-red heater or by passage through heated ovens or tunnels. It is convenient to use two conveying surfaces one for each sheet, which are parallel to each other and move in co-operation with each other. The conveying surfaces may be in the form of an endless belt of, for example, woven fabric or wire mesh, which may be covered with rubber or with a plastics material. The foamforming ingredients may be applied by means of compressed air. The mixture may be applied to the sheet before it contacts a conveying surface. Heating of the foam-forming ingredients may occur either before or after or before and after the second sheet of facing material has been introduced on to the layer.
Patent GB-649343-A (GB)
Title: Improvements in machines for supporting and transporting webs of textile fibres
IPC: D01G15/94
Filed: 1947-12-30
Abstract: 649,343. Removing foreign bodies from carding-engine webs. DUESBERG, H. Dec. 30, 1947, No. 34562. Convention date, Dec. 31, 1946. [Class 120(i)] A machine for effecting the removal of foreign bodies from webs produced in carding operations, said machines comprising at least one pair of superposed pressing cylinders 3 and 4 between which the web 1 is caused to pass, means for feeding the web from the carding machine 2 to the pressing cylinders and means for withdrawing the web, freed from foreign bodies, from said pressing cylinders, is characterized in that the said feeding and withdrawing means are constituted by cylinders 11 and 12 of asbestos or of an agglomerate based on asbestos or of a plastic material (synthetic resin, such as polyvinyl compound). The vertical and horizontal position of the feeding and withdrawing cylinders may be adjustable.
Patent GB-1592554-A (GB)
Title: Pouring of molten metal from a teeming vessel
IPC: B22D11/10
Filed: 1977-08-17
Abstract: A description is given of a method in which, by means of a special structural configuration of the restriction orifice in the flow duct of a casting vessel, it is possible to avoid an accumulation of oxidic impurities. For this purpose, the restriction orifice is given an axial length which is shorter than the constriction of the casting stream which it causes, known as the "vena contracta". Provided above this restriction orifice is a chamber which slows down the flow of the molten metal and calms turbulence. A description is furthermore given of an apparatus for carrying out this method, in which use is made of a flat disc (40) which is provided with the restriction orifice (42) and is arranged in such a way in the through hole for the passage of the molten metal that a chamber (38) is formed above the flat disc (40). <IMAGE>
Patent GB-1277039-A (GB)
Title: Image storage apparatus
Inventor: SHORTES SAMUEL RAY
IPC: H01J31/64
Filed: 1969-07-09
Abstract: 1277039 Cathode ray storage tubes; semiconductor targets TEXAS INSTRUMENTS Inc 9 July 1969 [9 Sept 1968] 34598/69 Headings H1D and H1K An image storage device, in particular a scan converter, has a target 22 comprising a sheet of semi-conductor material 34, e.g. N-type silicon, with a layer of insulating material 36, e.g. silicon oxide, on one surface having a number of discrete areas 38 of reduced thickness, such that when this insulating surface is scanned by an electron beam discrete depletion layers 46 are formed in the sheet 34 in correspondence to the reduced thickness portions 38. In a scan converter the target is disposed between the opposed write and read electron guns and the read gun is initially scanned to produce the uniform depletion layers 46. An intensity modulated electron beam from the write gun incident on the opposite face of sheet 34 produces electron-hole pairs which migrate to the depletion layers 46 to selectively alter the charge condition thereof. When scanned once more by the read beam 44 an alternating output signal detected by sensor 40 is produced by the target, where value is dependent on the amount of charge required to restore the depletion layers to their original state. A phosphor layer 50 may be provided on the write gun side of sheet 34 to increase the persistance of the image storage of the device. As shown in Fig. 8 in particular for radar screens in which a circular scan may be converted to a horizontal one, a low energy beam 52 is used to produce a persistant image, and a high energy beam 54 which penetrates the phosphor layer 50 produces a non-persistant image which can be used to tag the persistant images. The insulating layer 36 may be formed by growing a uniform oxide layer over a silicon wafer, etching holes in the oxide representing the discrete areas 38 and then growing a relatively thin second oxide layer to cover the bottom of the holes. A layer of metal film may in addition be formed over the areas 38 giving a device similar to an MOS device. Also the thicker regions of oxide layer 36 may be doped to prevent charging of areas below these regions. The thickness of the target 22 may be in the micron range.
Patent GB-411513-A (GB)
Title: Improvements in seat sticks and the like
IPC: A45B5/00
Filed: 1932-12-07
Abstract: 411,513. Walking - stick seats. TURTON, W., 108, Stechford Road, Ward End, Birmingham. Dec. 7, 1932, No. 34615. [Class 52 (ii).] A telescopic seat-stick or umbrella has a handle formed of two lever-like wings 8 independently pivoted at 9 to the forked head 5 of the stick and provided with short arms which can be locked, by a bolt or bolts, to the head of the stick to hold the wings 8 in open position so that a flexible strip 11 carried thereby is extended to form a hammock-like seat. In Figs. 3 and 4 a bolt 15 carried on the head of the stick passes through coincident holes 18 in the short arms of the wings and locks the wings in open position. To close the wings to form the handle the bolt 15 is withdrawn against the action of the spring 17 and the slotted cap 16 is rotated until the bolt is held in the withdrawn position by the stop 21 when the wings can be folded. A ground plate is carried on the boss 13 when not in use.
Patent GB-648334-A (GB)
Title: A high-pressure metal-vapour discharge tube for d.c. operation
Inventor: POLE JOSEF
IPC: H05B41/18
Filed: 1947-12-30
Abstract: 648,334. Supply systems for discharge tubes. TESLA, ELECTRICAL & RADIO INDUSTRY, NATIONAL CORPORATION. Dec. 30, 1947, No. 34656. Convention date, March 8, 1939. [Class 38 (iv)] [Also in Group XL (a)] In a high-pressure metal vapour discharge tube having a solid anode at one end and a liquid cathode at the other, both arranged in electrode chambers which point downwardly in their operational position, a capillary construction is formed in the anode chamber below the anode for preventing excessive condensation of the cathode material at the anode. As shown in Fig. 1, a quartz tube 1 having a graphite or metal anode 3 and a mercury cathode 10, through which extends an insulated auxiliary starting electrode 4, is supplied through a transformer 15-18, hot cathode rectifiers 13, 14, stabilizing choke 26 and delay switch 27. The starting electrode is energized through resistor 12 from the anode. To prevent condensation of mercury on the anode and tube walls the tube has a capillary extension 6 below the anode and cooling fins 5 are provided adjacent the cathode. Instead of using an auxiliary electrode, starting may be effected by a voltage " kick '' produced in the stabilizing choke by quickly interrupting a circuit shunted across the anode and cathode of the tube. The Specification as open to inspection under Sect. 91 describes also such a starting system applied to a full-wave self-rectifying tube. This subject-matter does not appear in the Specification as accepted.
Patent GB-1278127-A (GB)
Title: Improvements relating to percussion tools
IPC: E21B4/14
Filed: 1969-07-09
Abstract: 1278127 Percussive tools MISSION MFG CO 9 July 1969 [15 Aug 1968] 34670/69 Heading B4C [Also in Division E1] In a down-the-hole percussive drill having a casing 5, a hammer piston 32 and an anvil bit member 13 slidable in the casing between a working position and a fully extended position (shown), ducting for exhausting the forward working chamber 53 when the member is in the fully extended position is closed in the working position of the member. The construction prevents working fluid (gas) leaking into the chamber when the member is fully extended causing continued operation of the drill. When the member is fully extended the bulk of the working fluid flows into the hole through passages 52, 36, 39 whilst the leaking working fluid passes from the chamber through flutes 37 in the member 13, through annular groove 41 in the casing, between splines 40 in the casing, and through passages 35 in the member to combine with the working fluid in the passage 36. In the working position the member abuts the bottom of the casing and the connection between the passages between the flutes 37 and the groove 41 is blocked to prevent flow through the duct. In a modification the passages 35 are replaced by openings in the casing. In another modification the passages 35 are dispensed with and the splines and splineways 28, 29 of the member are extended and have sufficient clearance with the matching splines 40 and splineways of the casing to form discharge passages for the leakage fluid. In a further modification one of the splines on the member is dispensed with to form a discharge passage.
Patent GB-342410-A (GB)
Title: An improved tennis post
IPC: A63B71/02
Filed: 1929-11-16
Abstract: 342,410. Tennis posts. JACKSON, J. O., of National Provincial Bank, and EVANS, A. E., Audley Villa, both in Newport, Shropshire. Nov. 16, 1929, No. 35059. [Class 20 (i).] A tennis net post 6 is supported between bolts 7 connecting side-bars 1, 2 of a metal ground frame which lies parallel to, and partly beneath, the net. A stay 13 is bolted to the post 6 and to a plate 5 attached to the outer ends of the bars 1, 2. The plate 5 is doubled over to carry a pin 8 formed with a hook 9 which is adapted to be engaged with the head 10 of an anchoring pin 11. The bars 1, 2 are formed with divergent portions 3 which lie under the net and are connected by a cross-piece 4. The pin 11 is of T-section, and has a transverse plate 12 riveted to it as shown in Fig. 4. In a modified construction, the stay 13 is bolted to the inner side of the post 6 and to the cross-bar 4 on the ground frame.
Patent GB-622296-A (GB)
Title: Improvements in or relating to linear-dimension gauges or comparators
IPC: G01B5/00
Filed: 1946-11-26
Abstract: 622,296. Linear-dimension gauges. SIGMA INSTRUMENT CO., Ltd., and LOXHAM, J. Nov. 26, 1946, No. 35060. [Classes 106 (ii)] In a linear-dimension gauge the feeler or plunger causes a pivotally-supported member to move angularly, such movement being visually indicated by mechanical or optical means. The invention is shown as applied to a comparator as described in Specification 542,231. The plunger 2, carrying the feeler 1, is a round bar supported for axial movement on balls in brackets 6, 7 secured to a block 3 carried by the plate 5. A spring 12 anchored at one end at 13 to the plate 5 and at the other end to a stirrup 14 having a ball 18 therein contacting the plunger 2 urges the latter into contact with the balls in the brackets 6, 7 and exerts a light downward influence on the plunger. The ball 18 is offset from the axis of the plunger and the spring 12 thus exerts a torque on the plunger; rotation of the plunger is prevented by a bracket 19 secured thereto having a ball 20 engaging a member 21 on the block 3. A knife-edge member 28 with a rounded portion 29 engaging a V-groove in the plunger 2 is secured to the plunger by two screws 31, 32 which can be adjusted to rock the member 28. The member 28 is adapted to slide vertically, on movement of the plunger, in a slot in an upper block 23 secured to the fixed block 3. A lower block 24 is pivoted to the upper block 23 by pairs of lath springs 25, 26, Fig. 4, and has a sapphire or other hard contact surface 34 thereon which is always in contact with the knife edge of the member 28 so that the block 24 follows the movements of the plunger 2. The block 24 is biassed by a weight or other means to follow upward movement of the knife edge member 28 and rocks about a pivotal axis corresponding to the axis of intersection of the latch springs 25, 26. By adjusting the screws 31, 32 the knife edge of the member 28 can be adjusted towards or away from the pivotal axis of the lath springs and so alter the magnification of the movement imparted from the plunger 2 to the block 24. The block 24 is shown as actuating an indicator 40 as described in Specification 542,231. The angular movement of the block 24 is limited by a bracket 44 secured thereto projecting between a pair of stop-screws 45, 46. These stop-screws are carried by brackets 47, 51 pivotally supported for adjustment by screw means whereby the positions of the stop-screws can be adjusted. The vertical movement of the plunger 2 is also limited by stops on the block 3 on each side of the collar 19 fixed to the plunger. A pivoted spring-biaased lever 62 serves to move a lever arm 65 to engage the collar 19 to raise the plunger 2. The whole mechanism is enclosed in a casing 70. In a modification, the plunger 2 is fixed to a member supported on two vertically-spaced lath springs for substantially linear movement relatively to a fixed block.
Patent GB-483982-A (GB)
Title: Improvements in or relating to skips for use in the loading and unloading of material
IPC: B65D88/56
Filed: 1937-12-18
Abstract: 483,982. Tip - buckets. SUMMERS & SONS, Ltd., J., and COX, H. Dec. 18, 1937, No. 35085. [Class 78 (iv)] A tip-bucket of the shovel type is provided with elongated side rails 16 engaging the lifting chains 20. Hoisting is effected with the chains at the forward ends of the rails whereby the bucket is inclined rearwardly. Tipping is effected automatically by lowering the bucket so that its rear end abuts against the top of the receiving truck or vessel and is thus rotated to some extent by continued lowering until the chains slide rearwardly on the bars and cause a rapid completion of the tipping movement. The rails 16 are formed in one piece secured at 15 to the walls of the bucket and passing right round the latter near the centre to form a bracing member. Transverse tie-rods are mounted at intervals across the top of the bucket. In a modification the two rails 16 are bent inwards and combined to form a single rail in the longitudinal axis of the bucket.
Patent GB-897191-A (GB)
Title: Improvements in or relating to apparatus for lifting cargo containers
IPC: B66C13/00
Filed: 1959-10-16
Abstract: 897,191. Cargo vessels. NATIONAL MALLEABLE & STEEL CASTINGS CO. Oct. 16, 1959 [July 31, 1959], No. 35109/59. Class 113. [Also in Group XXX] Containers 20 or vehicles are transferred to the hold of a ship 5 where they are stacked between guides 22 by an overhead travelling crane 14, (see Group XXX).
Patent GB-346651-A (GB)
Title: Improvements in or relating to permanent magnets
IPC: H04R9/02
Filed: 1930-11-21
Abstract: 346,651. Making magnets. SWIFT, LEVICK, & SONS, Ltd., HORSBURGH, G. D. L., and LEVICK, H. S., Clarence Steel Works, and DARWINS, Ltd., Fitzwilliam Works, Templeborough, both in Sheffield. Nov. 21, 1930, No. 35126. [Classes 83 (i) and 83 (ii).] Moulds.-Cast permanent magnets, for moving- coil loud-speakers &c., comprising a block A<3> with one or more looped limbs A and having polepieces C, C<1> of high permeability, are made by pouring magnet-steel, for the main portion, and cobalt-iron or other soft iron, for one or both poles, separately into a mould M, Fig. 3, in such manner that they become united. Soft iron is first poured to form a pole C and, when this is semi-plastic, steel containing 9 to 35 per cent of cobalt is used to fill the mould. An annular soft-iron polepiece C<1>, Fig. 2, is then fitted, after necessary machining. If there is only one limb it is extended to surround the pole C, as shown at A<2x>, Fig. 9. In a modification the mould-cavity is extended so that the soft iron a<4> also flows into the ends of the limbs as shown in Fig. 5, a gap to separate the poles being cut subsequently.
Patent GB-387088-A (GB)
Title: A cabinet or housing for accommodating collapsible tables and other articles of furniture, such as folding chairs
IPC: A47B83/04
Filed: 1931-12-21
Abstract: 387,088. Cabinets and tables. PINTO, E. H., 44, Chilton Court, Clarence Gate, and BOVIS, Ltd., 35, High Street, Marylebone, both in London. Dec. 21, 1931, No. 35275. [Classes 52 (i) and 52 (iii).] A cabinet for housing collapsable articles of furniture, such as tables and seats, is formed so that the tops of the tables, or their equivalents, constitute one or more sides of it. The device shown consists of a shallow carcase or frame comprising a floor board 1, a roofboard 2, and end walls 3, 4, the front and back being closed by the tops 5 of two tables. It is supported by feet 7, and at the top is a locker 9. The table shown consists of a rectangular top removable from the legs 11, Fig. 2, which are arranged at the ends of a bar 12 and of two struts 13, 14 pivoted at 13a, 14a to the bar 12 so as to enable them to fold against it. The table tops having been removed from their leg frames, the leg frames are hung inside the cabinet frame, and the table tops are placed in the front and back of it. The undersides of the tables are fitted with beadings 17, handles 19, and other ornamentations. The corners of the beadings 17 serve to retain the tops of the legs 11.
Patent GB-360213-A (GB)
Title: Zigzag-stitch sewing machines
IPC: D05B73/00
Filed: 1930-11-24
Abstract: 360,213. Sewing-machines. SINGER MANUFACTURING CO., Elizabeth, New Jersey, U.S.A. Nov. 24, 1930, No. 35286. Convention date, Jan. 10. [Class 112.] Needles, vibrating laterally.-Improved mechanism for vibrating the needle laterally and for maintaining loop-seizing relationship between the needle and loop-taker comprises a pitman having a strap completely embracing an eccentric which vibrates the needle-bar frame and loop-taker. The main shaft 6 having the usual crank disc 7 and link 8 for reciprocating the needle bar 9, is journalled in the arm 4. The bar 9 reciprocates in a frame 11 pivoted at its upper end at 12. The frame 11 is pivoted to a link 14 by a stud 13. The other end of the link is connected by a bolt 15 to an arm 16 of a two-armed pitman 16, 17. The pitman has a split hub 18 embracing the operating eccentric 19 extending laterally from a frame 20 pivotally supported on a screw-bolt 21 or a disc 22 secured to the shaft 25. This shaft carries a worm wheel 26 driven by a worm gear 27 on the main shaft 6. In order to adjust the eccentric 19 with respect to the shaft 25, and so change the effective endwise movement of the pitman, a rod 28 is threaded into the bore of the shaft 25 and is screwed up by the nut. 29. The tapered end 30 of the rod engages the round end of the screw 31 and moves the spring plunger 32, to move the eccentric. The arm 17 of the pitman is connected by a pin 35 to an arm 36 of the rocking lever 36, 37 pivoted at 40. The other arm 37 has a threaded aperture receiving the ball-headed screw 41 universally jointed to the arm 45 of a second rocking lever 45, 46. The ball slot 44 is slightly elongated and provided with a clamping screw 47 for varying slightly the throw of the arm 45 with that of the arm 37. The arm 46 is connected by a flat spring 46 to the reciprocating bar 50 journalled in the work supporting arm 2 and having a reduced end 51 secured by a pin 52 to the apertured loop-taker bracket 53. The bracket 53 has fins 54 engaging fixed shoulder 55 to prevent rotary movement. The loop-taker 57 is carried on the vertical shaft 56 and is of the rotary hook type. The loop-taker is situated to one side of the needle path enabling the work supporting arm to be terminated abruptly adjacent the needle path as is desirable for certain kinds of work. The shaft 56 carries a bevel gear 61 meshing with a gear 62 of twice the size of the gear 61, on the actuating shaft 64. The shaft 64 carries a pulley 65 driven from the main shaft 6. The bracket 53 carries a fork 68 straddling a groove 69 provided between the gear 62 and collar 70 so that the gear is constrained to move laterally with the loop-taker, while rotating with the shaft 64.