baber/WOPTO huggingface dataset:
Patent GB-841997-A (GB)
Title: Improvements in and relating to packing rings
Inventor: ARMSTRONG WILLIAM
IPC: F16F9/36
Filed: 1955-12-08
Abstract: 841,997. Stuffing-box substitutes. ARMSTRONG PATENTS CO. Ltd. June 12, 1956 [Dec. 8, 1955], No. 35220/55. Addition to 716,032. Class 122 (5). A rubber &c. packing ring 11 for the shaft of a semirotary hydraulic shock-absorber has sealing lips 12, 13 and 14 on its inner periphery separated by circumferential grooves 15 and 16 of buttress profile. The radial face 17 of the lip 12 is formed by a recess at that end of the ring. In a modification, Fig. 2 (not shown), in order to provide reversibility the ring has two sets of opposed and complementary lips, the outer set acting to exclude dirt.
Patent GB-620734-A (GB)
Title: Improvements in and relating to methods of preparing n-vinyl carbazole
IPC: C07D209/86
Filed: 1946-11-27
Abstract: N-Vinyl carbazole is prepared by pyrolyzing a compound of the formula <FORM:0620734/IV (b)/1> where R represents an acetyl, phenylacetyl, propionyl, n-butyryl or isobutyryl radical, at a temperature of from 450-750 DEG  C., preferably from 500-700 DEG  C., admixed if desired with an inert gaseous diluent such as nitrogen.  Suitably the reaction is carried out by passing the compound in a continuous manner through a tube heated to the desired temperature and condensing the products.  In examples: N-vinyl carbazole is prepared by the pyrolysis of: (1) and (2) N-(b -acetoxyethyl) carbazole; (3) N-(b -n-butyroxyethyl) carbazole.  Specification 620,733 is referred to.
Patent GB-619258-A (GB)
Title: Improvements relating to reciprocating saws
IPC: F16H21/32
Filed: 1946-11-28
Abstract: 619,258. Reciprocating saws. DURAND, G. R. H. VULLIET-. Nov. 28, 1946, Nos. 35310 and 35311. Convention dates, Dec. 6, 1945, and July 4, 1946..[Class 145 (ii)] In a method of sawing, a reciprocating saw blade is given a high speed motion, the amplitude of which extends at most to three tooth pitches in such a manner that the apex of each tooth describes a closed circular, elliptical or oval curve. As shown applied to a hand held saw, an electric motor or turbine drives a shaft 4 having an eccentric 5 which actuates a connecting rod 6 the movements of which are imparted to a lever 8 through swing bars 9 and 10 pivoted on a support 1 at 11 and 12 and connected to one another by a link 13. A fitting 17 carrying a blade 18 is connected to the rod 6 and the lever 8 by holes 14, 15 and 16 to form a deformable parallelogram. The curve described by each tooth is dependent on the holes in which the fitting is adjusted, holes 14 giving a circle and holes 15 and 16 ellipses whose axes have ratios 2 : 1 and 3 : 1 respectively. A blade whose pitch is twice the eccentricity will give an amplitude of 1 pitch tooth in position 14, 2 pitch teeth in position 15 and 3 pitch teeth in position 16. The arrangement may be such that the blade is given a quick return as described, a slow return, Fig. 5 (not shown), or equal times on forward or return strokes, Fig. 7 (not shown). In all cases the mechanism may be enclosed in an oil bath.
Patent GB-176893-A (GB)
Title: Improvements in aerial systems employed in wireless telegraphy and telephony
IPC: H03H7/01
Filed: 1920-12-15
Abstract: 176,893. Franklin, C. S. Dec. 15, 1920. Addition to 155,330. Drawings to Specification. Directive signalling. - The arrangements described in the parent Specification are modified by connecting the aerial system and the distant receiving apparatus by buried cable, a transformer being used as before between the aerial and the cable. If a multi-pair cable is used, as for example when the aerial system comprises two direction frames and a plain aerial, each pair is twisted and separately screened from the other pairs by copper tape.
Patent GB-1354068-A (GB)
Title: Flow controlling devices
IPC: F16L55/027
Filed: 1972-07-28
Abstract: 1354068 Spray carburetters ANGLO AMERICAN CORP OF SOUTH AFRICA Ltd 28th July 1972 [29 July 1971 24 April 1972] 35411/72 Heading F1B [Also in Divisions F2 and G3] A device for controlling the flow of fuel from a carburetter float chamber 56, comprises a screw 70 screwed into a threaded portion 62 and projecting into a bore 66 with the peak of the screw-thread penetrating the wall of the bore. Rotation of the screw varies the degree of projection into the bore and thereby the effective length of the spiral throttling passage defined between the thread and the bore. The float chamber body is made of polyethlene or a plastically deformable material such as soft metal. A scale 72 indicates the effective length of the throttling passage.
Patent GB-1040059-A (GB)
Title: Improvements in or relating to foamed plastic sheeting
Inventor: SPENCER FRANCIS TAYLOR
IPC: B29C44/56
Filed: 1963-09-09
Abstract: 1,040,059. Embossing. PEPPERELL MANUFACTURING CO. Sept. 9, 1963, No. 35482/63. Heading B6J. [Also in Division B5] Polyurethane foam sheeting is embossed, to render it more drapeable, elastic and creaseresistant, by forming indentations therein with a heated implement while maintaining the sheet under longitudinal tension, e.g. sufficient to elongate it by 50%, the indentations extending through the major part of the sheet thickness and being such as to divide the sheet into connected, relatively movable, preferably rectangular masses preferably arranged in staggered rows (Fig. 1, not shown). Apparatus usable comprises a figured roller R internally heated at H and co-operating with a roller B, the sheet being wound up positively at W2 whilst held by the slower driven roller R. The roller R may have blade-like projections in staggered rows which result in indentations on both sides of the sheet (Fig. 10, not shown).
Patent GB-491242-A (GB)
Title: Improved devices for holding bags during filling
IPC: B65B39/08
Filed: 1936-12-28
Abstract: 491,242. Bag holders. CORDINGLEY, H., and IMPERIAL CHEMICAL INDUSTRIES, Ltd. Dec. 28, 1936, No. 35543. [Class 58] The clamping members of a device for holding bags during filling on the spout of a hopper are caused to move from the open to the closed position by the movement of the operator's hand in pulling the mouth of the bag over the spout. The arcuate clamps 17 are each carried bv a lever 16 forked to embrace a support 2, each limb of the fork being rotatably mounted on a disc 14 eccentrically secured to a spindle 13 capable of rotation in a bearing in the support 2 and provided with an actuating handle 15. The boss of the handle has a projection 12 adapted to be engaged by a spring pawl 9 mounted on a pivot 8 on an extension of the lever 16 and provided with a lug 11 adapted to engage the side of the support 2. A lever 3 is pivoted to the support 2 and has a slot in which a projection 7, attached to the lever 16, can slide. In placing a bag on the spout the attendant's hands engage the levers 3 and push them upward, the edges of these levers engaging the projections 7 forcing them and the levers 16 to which they are secured backwards round their pivots. The handles 15 move with the levers until the spring pawls 9 are tripped by engaging the supports 2, the tripping taking place when the clamps are in clamping position. The handles continue to rotate owing to their weight turning the eccentrics and so pressing the clamps around the mouth of the bag. In the modification shown in Fig. 5 each clamp 16 is carried by a bar 13 rigidly attached to the lever 11 pivoted at 9 on a bracket 7. The other end of the lever carries a sleeve 5 through which a spring plunger 6 passes, this plunger being connected to a lever 10 pivoted on the bar 13 and provided with an actuating knob 15. Lugs 2 on the hopper are provided with ramps 4 terminating in recesses 3. On placing a sack over the mouth of the hopper the hands of the attendant engage pads 8 on the levers 11 pushing these upwards and causing the clamps 16 to grip the sack : the plungers 6 ride up the ramps and fall into the recesses thus maintaining the clamps in holding position. When the sack is filled an inward blow on the knobs 15 lifts the plungers and permits the clamps to fall from the hopper spout.
Patent GB-1303119-A (GB)
IPC: H04N17/06
Filed: 1970-07-22
Abstract: 1303119 Recording/playback apparatus SONY CORP 22 July 1970 [28 July 1969] 35553/70 Heading G5R A monitoring system provides a visual indication of the accuracy with which a rotating head assembly scans recorded tracks on a video-tape. In the arrangement shown, video signals from a mixer/amplifier 2 are passed to a demodulator 3 and also to an envelope or average level detector 5, the latter activating a monostable multivibrator 6 to produce an output signal S 1 , whose width # varies with the magnitudes of the heads signals. The signal S 1 , as synchronized with a pulse signal P G , is then passed to a mixing circuit 9 and is used to clip at the "grey level" the video signals from demodulator 3; a monitor 11 thus shows a grey stripe (17, Fig 5, not shown) whose thickness indicates the tracking accuracy. Tracking adjustment may be achieved with a capstan drive control system (Fig. 6, not shown) wherein the pulses P G  from a heads drive tachogenerator 7 are phase compared with control pulses from a stationary head 15 and used to modify the tape speed. An alternative system (Fig. 7, not shown) produces a grey stripe of constant thickness but whose position indicates the tracking accuracy.
Patent GB-865386-A (GB)
Title: Improvements in or relating to the preparation of organic halides
IPC: C07C17/093
Filed: 1959-10-20
Abstract: Organic halides are prepared by reacting an organic compound containing an aluminiumcarbon bond with a halogen in the presence of a solvent which forms a co-ordinate complex with aluminium halides. Halogens mentioned are fluorine, which requires low temperatures and may be diluted with an inert gas; chlorine, bromine and iodine.  With bromine and iodine, temperatures of -80 to 100 DEG C. are suitable; with chlorine and fluorine, -80 to 10 DEG C. is preferred.  Suitable aluminium compounds include trialkyl, dialkyl ethoxy, triphenyl, diphenyl ethoxy, tricyclohexyl and tribenzyl aluminium.  Preferred solvents include aliphatic ethers, cyclic ethers, polyethers, primary and secondary and tertiary amines and tetrahydrofuran.  Specification 770,707 is referred to. Reference has been directed by the Comptroller to Specification 763,824.
Patent GB-874505-A (GB)
Title: Improvements in or relating to work-clamping devices
Inventor: FLETCHER JOSEPH
IPC: B25B1/14
Filed: 1958-11-06
Abstract: 874,505. Work-holders. TRUTONE PRODUCTS Ltd. Sept. 29, 1959 (Nov. 6, 1958], No. 35633/58. Classes 83 (3) and 83 (4). A work-holder comprises a base 1 carrying a fixed-jaw 14 and a lever 16 pivoted at 18 carrying a movable-jaw 141, the lever being actuated by a toggle mechanism. An extension 19 of the lever is pivoted at 161 to a handle 22 having an arm 23 pivoted at 231 to links 24, pivoted to an abutment 25 on the base, the abutment 25 being adjustable by a screw 26 to vary the closed-position of jaw 14<SP>1</SP> to suit the size of the work. In operation, the abutment 25 is adjusted and a screw 29 on the lever 22 is set so that when the lever is moved towards the abutment 25 and the screw 29 abuts a projection 27 on the base, the toggle 23, 24 is brought into line, thus clamping a workpiece between the jaws. The block 10 on which the jaw 14 is secured, and the lever 16, have holes 21 at rightangles so that the jaws may be secured to any side thereof, and a number of differently-shaped jaws for gripping shaped workpieces are described. The faces 2, 3 of the base are machined so that it may be arranged for gripping either vertical or horizontal work, holes 4 accommodating holding-down bolts or clamping-pins projecting from clamping-blocks 6, Fig. 3. Soldering.-In order to preserve the mechanism from heat during a brazing &c. operation, extensions 65, Fig. 11, may be applied to the block 10 and lever 16, each carrying a screw 66 which may have a cupped-end to press pins 68 against a ball-ended shank 69 during brazing..
Patent GB-884326-A (GB)
Title: Improvements relating to box-folding mechanisms
IPC: B31B3/50
Filed: 1959-10-21
Abstract: 884,326. Feeding sheets. AHLEN & AKERLUND FORPACKNING A.B. Oct. 21, 1959 [Oct. 28, 1958], No. 35655/59. Class 100(1) [Also in Group XVII] Box blanks are transferred from a magazine to a die-and-plunger mechanism, which erects them, by suction means carried by a linkage, dwell periods in the movement of the linkage being controlled by a cam track associated with the reciprocating plunger. Suction feet 108 are carried by a lower frame 106 and take blanks from a magazine M. The frame 106 is carried by an upper frame 104 pivoted at 102 and swung towards and away from the magazine by a pneumatic cylinder and piston 114. A spring 130 urges the lower frame 106 towards the magazine. A rod 116 moving up and down with a rod 118 carrying the plunger of the erecting mechanism carries a cam track 203-206 which engages a roller 126 on the frame 104 causing the frame to swing and dwell as referred to above. A bellcrank lever 132 engages a roller 134 to limit forward movement of the frame 106, a roller 136 also co-operates with the lever 132 to return the frame 106 against the action of the spring 130. Damping means may be fitted to the blank feeding mechanism to reduce noise. Micro-switches 138, 140 are actuated by the frame 104 and a further switch 142 is actuated by a cam 144, these switches synchronizing the movements of the various members by means of electric circuits.
Patent GB-1246557-A (GB)
Title: Improvements in integral photographs
Inventor: DUDLEY LESLIE PETER
IPC: G03B35/24
Filed: 1969-07-16
Abstract: 1,246,557. Stereoscopic photography. L. P. DUDLEY. July 16, 1969 [July 26, 1968], No. 35745/69. Heading G2A. In copying a photograph of the type shown in Fig. 2, which comprises separate elementary images of the original (letter L) formed by sixteen spherical lenticules, it is erected (as in Fig. 3, when, as viewed through the lenticles, the integral image will be pseudoscopic) and a contact print made from it on to a similar matching piece of lenticular film (the emulsion being on the flat side of the film). This produces the arrangement of Fig. 4, which is again pseudoscopic, although each individual elementary image is correctly oriented. The ideal copying procedure is that which would produce the arrangement of Fig. 5, which is a correctly oriented and stereoscopic reproduction of the original photograph of Figs. 2 or 3. Fig. 6 is a further type of print which can be obtained from Fig. 3, and is also a correctly oriented and stereoscopic image, but exhibits reversed vertical parallax (i.e. the lenticles 1, 2, 3, 4 are along the bottom row, instead of the top row as in Fig. 5, &c.) This type of defect, however, is generally unnoticed, so that Fig. 6 still represents a satisfactory arrangement. Fig. 7, and Figs. 8-10 (not shown), indicate a contact-printing procedure by means of which Fig. 6 may be produced from Fig. 3. The lenticular set O (which is the Fig. 3 arrangement) is placed in emulsion-to-emulsion contact with the matching lenticular set P so that the left hand column of lenticules (16, 12, 8, 4) is aligned with the right hand column of lenticules on set P, and an exposure made by light passing in direction A. The width of the strip of emulsion being exposed is limited to the lenticular pitch distance (e.g. by admitting the light through a narrow slit). Sets O and P are then moved relatively to each other in the direction of the arrows until the position of Fig. 8 (not shown) is reached, when another exposure is made, giving a second column of lenticules on P. Two further similar movements give the arrangements of Figs. 9 and 10 (not shown), so finally P has the configuration of Fig. 6. By repeating this process, with a vertical scan instead of a horizontal scan, the Fig. 6 arrangement can be converted into that of Fig. 5, but this is considered unnecessary. The camera for carrying out this recording process can be designed especially for the purpose, or a standard camera can be modified. Fig. 11 (not shown) is such a camera, in which the lens has been removed, and a rectangular aperture cut in the front of the camera body, which is covered by a protective sheet of glass. Detachable plates (6, 7, 10) can be used to vary the size of the aperture, which at its largest may be wider than the original picture format. The admitted light, which may be from a flash source, is confined (e.g. by a narrow slit) to the width of one lenticular column. The camera may be used in a moving vehicle or aircraft, in which case the translatory movement of the film is provided by the movement of the vehicle.
Patent GB-356581-A (GB)
Title: Improvements in means for temporarily holding picture cards, photographs or the likein albums or the like
IPC: B42F5/06
Filed: 1930-11-27
Abstract: 356,581. Picture &c. mounts. RADO, L., 10, Bismarckstrasse, Wannsee, Berlin, Nov. 27, 1930, No. 35758. Convention date, Nov. 27, 1929. [Class 11.] A corner mount with a transparent upper wall c is made by forming this wall of fibre-free cellulose skin, such as cellulose hydrate obtained from viscose The ends of the cellulose skir are folded over and embedded between two gummed layers d<1> of paper or other fibrous material, the under layer also serving to attach the mount to an album leaf or the like.
Patent GB-831914-A (GB)
Title: Improvements in irradiation process
IPC: H04Q3/00
Filed: 1957-11-18
Abstract: Solid irradiatively cross-linked polypropylene characterized by (1) its resistance to oxidation in air, (2) its freedom from substantially all of the radiation-induced free radicals, and (3) its freedom from substantial degradation by oxygen, may be produced (a) by applying at a temperature in the range of 100 DEG  to 125 DEG  C. ionizing radiation, particularly high-energy electrons, having energy equivalent to at least 5 X 104 electron volts to polypropylene which is normally a crystalline solid at room temperature, or (b) by applying at a temperature from about room temperature to slightly less than 100 DEG  C. ionizing radiation, particularly high-energy electrons, having energy equivalent to at least 5 X 104 electron volts to a polypropylene which is normally a crystalline solid at room temperature, and then substantially immediately heating the irradiated polypropylene to a temperature in the range of 120 DEG  to 260 DEG  C.  The polypropylene is preferably irradiated to a radiation dose of 1 X 106 to 1 X 108 rep.  The processes may also be used for the treatment of blends of polypropylene with polyethylene or with a filler such as silicon xerogels or aerogels, fumed or hydrophobic silicas, titanium dioxide, zinc oxide, calcium or magnesium carbonate, alumina, clay or glass.ALSO:Solid irradiatively cross-linked polypropylene characterized by (1) its resistance to oxidation in air, (2) its freedom from substantially all of the radiation-induced free radicals and (3) its freedom from substantial degradation by oxygen may be produced (a) by applying at a temperature in the range of 100 DEG  to 125 DEG  C. ionizing radiation, particularly high energy electrons, having energy equivalent to at least 5 X 104 electron volts to polypropylene which is normally a crystalline solid at room temperature, or (b) by applying at a temperature from about room temperature to slightly less than 100 DEG  C. ionizing radiation, particularly high energy electrons, having energy equivalent to at least 5 X 104 electron volts to a polypropylene which is normally a crystalline solid at room temperature, and then substantially immediately heating the irradiated polypropylene to a temperature in the range of 120 DEG  to 260 DEG  C.  The polypropylene is preferably irradiated to a radiation dose of 1 X 106 to 1 X 108 rep.  The processes may also be used for the treatment of blends of polypropylene with polyethylene or with a filler such as silica xerogels or aerogels, fumed or hydrophobic silicas, titanium dioxide, zinc oxide, calcium or magnesium carbonate, alumina, clay or glass.  The irradiated product may be used as insulating tape, as a fluid conduit or container, as a filament or fibre or as an insulating coating on wire.
Patent GB-756914-A (GB)
Title: Improvements in faucets
IPC: E03C1/04
Filed: 1954-12-10
Abstract: 756,914. Plug cocks. JOHNS, J. G. Dec. 10, 1954, No. 35881/54. Class 135. A hot and cold water mixing faucet comprises a casing 3, Fig. 3, housing a rotatable conical plug 15 having an enlarged head 19, held in fluid-tight engagement with the casing by nuts 23, 25 and formed with a radial nozzle 21 having a bore 29 dividing into separate ducts 331, 35<SP>1</SP>, Fig. 2, communicating with hot and cold water supply pipes 45, 47 respectively through ducts 33, 35 and circumferential grooves 37, 39, Fig. 6, on rotation of the plug by the nozzle. The plug has two extreme " off " positions and intermediate positions in which cold and hot water are discharged separately and a position in which a mixture of hot and cold water is discharged.
Patent GB-1502104-A (GB)
Title: Gas burners
IPC: F23D14/64
Filed: 1975-08-12
Abstract: 1502104 Gas burners C C TRAPP 12 Aug 1975 [15 Aug 1974] 35925/74 Heading F4T A gas burner comprises a tubular element 10 having a plurality of flame ports 11 in a wall thereof, a fuel gas inlet chamber 13 and a venturi tube 12, the inlet chamber and venturi tube being located within the tubular element. A gas inlet nozzle 16 is formed in an end cap 15, which is connected to a second cap 17 by rods 22; sealing rings 20, 21, being provided. A transverse wall 14 is located in element 10 by upsets 26, and abuts a porous member 27, e.g. a wire wool member, which serves as an air filter, silencer, and flash back controller. Air is supplied through ports 24 which can be selectively masked to control the air supply, by a sleeve 25. Element 10 may be of "domedsquare cross-section", welded or crimped at point (28) or (29) Figs. 2, 3 (not shown), or it may be rectangular, circular, oval, or trapezium, drawn or entruded section. End cap 15 may be connected to element 10 by bayonet joints (30, 31) Fig. 4 or screwed thereto Figs 4 and 5 (not shown). The porous member 27 may be formed as a mesh and may be of metal, plastics, or cloth, or it may be formed as a metal pressing, a coil spring, or a perforated tube. Ports 11 may be of round, square, or rectangular crosssection, may be pierced, extruded, or may comprise inserts, and may be tapered or flared. The ports may be supplemented with flame retention ports of smaller size.
Patent GB-176554-A (GB)
Title: Improvements in or relating to wardrobes, cupboards, and the like
IPC: A47B61/00
Filed: 1920-12-22
Abstract: 176,554. Lebus, H. A. H., Lebus, S., and Lebus, L. H., (trading as Lebus, H.). Dec. 22, 1920. Wardrobes.-To facilitate the transport of wardrobes, cupboards, &c., they are made of three components, a cornice 1, a plinth 2, and a main carcass. The cornice forms part of the top and the plinth part of the bottom of the carcass, which consists of two portions 3, 4. The back may consist of a separate portion 5, or may be formed of extensions of the portions 3, 4. Guiding- blocks 20 - - 23 are fitted to the lower portions 18, 19 to enable them to take into the open ends 16, 17, and similar guide-blocks are fitted at the top. The portions 6 of the cornice and 15 of the plinth project so that on assembly they form with the inner surfaces of the parts 3, 4 a flat top and bottom; a single undivided interior is thus provided.
Patent GB-435537-A (GB)
Title: Improvements in or relating to oil-break electric switches
IPC: H01H33/75
Filed: 1933-12-21
Abstract: 435,537. Oil-break switches. SCARPA, G., 5, Via Fiume, Savona, Italy. Dec. 21,1933, No. 36047. Void [Abridged as open to inspection under Sect. 91 of the Acts, June 23, 1934]. [Class 38 (v)] In an oil-break switch, the pressure due to the arc formed on separating the contacts a, c forces oil from a casing e through a conduit g and across the flow of vapours issuing from the aperture f through which the movable contact c is withdrawn from the casing. The movable contacts may be carried by a support adapted to rotate on its own axis to bring the movable contacts into and out of engagement with the fixed contacts.