baber/WOPTO huggingface dataset:
Patent GB-336170-A (GB)
Title: Improvements in tables
IPC: A47B1/08
Filed: 1929-12-21
Abstract: 336,170. Sutcliffe, F., Sutcliffe, J. G., and Sutcliffe, H., (trading as Sutcliffe & Sons, E.). Dec. 21, 1929. Expanding tables.- A folding table comprising a top with a central part E and two hinged ends E<1>, shown in dotted lines, has two legs B, B<1> at diagonally - opposite corners of a rectangular frame A, and legs D attached to the ends of centrallypivoted arms C. As shown, the parts a, d of the frame A and legs D respectively are cut away as shown to facilitate folding and to enable the legs D to support the corners a<2> of the frame.
Patent GB-983935-A (GB)
Title: Improvements in or relating to submarine cable repeaters
Inventor: OSWALD THOMAS
IPC: H04B3/36
Filed: 1961-11-01
Abstract: 983,935. Automatic volume control. SUBMARINE CABLES Ltd. Oct. 25, 1962 [Nov. 1, 1961], No. 39166/61. Drawings to Specification. Heading H4R. In a submarine repeater, the feedback path of the amplifier consists of a network which simulates the attenuation of a section of the cable and its variation with temperature and frequency. A length of cable has its attenuation proportional to the square root of the frequency and its temperature coefficient of attenuation half of the temperature coefficient of resistance of the metal of which it is made. A ladder network of series resistors and shunt capacitors also has these characteristics and if this network is included in the feedback path of a repeater amplifier it will compensate for the changes in attenuation of the cable due to variations in frequency and sea temperature. The construction of a repeater is described in which the valves are surrounded by heat conducting members connected to a heat sink held in contact with the repeater housing, while the feedback network is enclosed in a copper box connected to a second heat sink also held in contact with the repeater housing so that the network is kept at sea temperature. The resistors of the network are wire-wound components preferably made of platinum.
Patent GB-1426303-A (GB)
Title: Catalyst and process for oxidation of ammoxidation of olefin  mixtures
IPC: C07C47/22
Filed: 1973-08-15
Abstract: 1426303 Butadiene UBE INDUSTRIES Ltd 15 Aug 1973 [25 Aug 1972 22 Sept 1972 2 Feb 1973] 39569/73 Heading C5E [Also in Divisions B1 and C2]  Butadiene is made by the oxidative dehydrogenation of butene, optionally in admixture with isobutene, in the presence of a catalyst of the general formula wherein II is at least one Group II metal and X is Ti, Nb, Ta, Cr, Mn, Fe, Co and/or Ni, which may be supported. The reaction may be at 300-550‹ C. with a molar ratio of oxygen to total of butene + isobutene of 0À4-5 : 1 and, preferably in the presence of at least 0À5 mole of steam per mole of butene + isobutene. When isobutene is present the reaction mixture may also contain 0À5-3 mole NH 3  per mole butene + isobutene. Reference has been directed by the Comptroller to Specification 1,346,626.
Patent GB-1069734-A (GB)
Title: Injection moulding machine
IPC: B22D17/32
Filed: 1964-09-29
Abstract: 1,069,734. Injection moulding machines. GEBRUEDER BUEHLER. Sept. 29, 1964 [Sept. 30, 1963], No. 39603/64. Heading B5A. [Also in Division B3] An injection moulding machine has means for timing the movement of an injection plunger 12 from an initial position S 0  to an intermediate position S 1 , and from the intermediate position to a final position S 2 , whereby deviations from standard timings can be compensated for by hand or automatically. The timing means may include switches 30, 31 operated by a cam 18 movable with the plunger. A third switch 47 is opened by a pressure indicator 25 operated by the rise in pressure which occurs when the plunger 12 reaches its final position. First and second pulse generators 40, 45 with associated counters 41, 46 may be used for determining the times. In a modification (Fig. 4, not shown) a single pulse generator (45) is used, and the pressure operated switch 47 is replaced by a simple limit switch (32). In a further modification photo-cell switches are used in place of the mechanical switches 30, 31, 32, 47. In a still further modification the slow plunger travel time and the mould filling time are measured by stop watches operated by an element moving with the plunger.
Patent GB-335477-A (GB)
Title: A device for extracting the hollow stumps of broken tubular metallic shafts from golf club heads
IPC: B25B27/18
Filed: 1929-12-28
Abstract: 335,477. Hadden, W. J., and Donaldson Manufacturing Co., Ltd. Dec. 28, 1929. . Screws, extracting.-A device for extracting the hollow stumps of broken tubular metallic shafts from golf-club heads comprises a shank 5 provided with a sharp helix 7 for engaging the interior of the stump and a removable handle 3. The shank is preferably tapered to correspond with the internal taper of the stump and may be made by twisting a piece of square section fluted tool-steel. When the tubular shaft 12 is attached to the head 9 by a screw thread 13, the helix 7 is of opposite hand to the thread and a set of four extractors may be provided, two of each hand for large diameter shafts and two for smaller ones. For extracting broken shafts which are secured by means other than a screw thread, the shaft is gripped by the shank 5 as described above and is then withdrawn axially after the securing pins, rivets &c. have been removed. Each shank may carry its own handle or one handle may be provided for each set of shanks. The Provisional Specification refers to Specification 312,538, [Class 132 (ii), Games].
Patent GB-1071390-A (GB)
Title: Method and apparatus for bending glass sheets
IPC: C03B23/03
Filed: 1964-10-02
Abstract: <PICT:1071390/C1/1> A method of bending glass sheets which have been heated to their softening temperature and then positioned between opposed complemental shaping surfaces movable toward and away from each other to press a heated sheet therebetween, is characterized by directing a flow of air outwardly through one of said shaping surfaces and against the glass sheet during the movement of the surfaces toward and from each other.  The air flow is directed through said shaping surface during the pressing thereby to provide a cushion of air between the sheet and the shaping surface and may be used to assist in urging the sheet away from said shaping surface.  A pre-heated sheet 12 is conveyed between two complementary bending mould sections 23, 24 and passes a sensing device (not shown) which starts the bending sequence.  The leading edge of the sheet contacts a stop-member 30 which correctly aligns the sheet between the mould surfaces 25. The stop member 30 is then moved away until the start of the next sequence by a double-acting piston-cylinder 38, 39 acting on racks 36, 40.  The lower mould 24 is an open-ring mould which only contacts the marginal portions of the sheet.  It is mounted for vertical movement upon a frame 47.  Upon receiving a signal from the sensing device a cam 51 makes one complete revolution and through a follower 53 attached to a parallel bars system 54, 56 causes the lower mould 24 to move upwardly with the glass sheet into pressing engagement with the upper mould 23, and thence return. The bent sheet is then transferred to a tempering section.  The upper mould half 23, which preferably remains stationary, comprises a moulding surface 25 containing one or a plurality of orifices 68 (Fig. 3) through which air under pressure can be passed from an air chamber attached to the back of the mould face. Both the upper and lower mould contacting faces are covered with a soft non-abrasive heat-resistant material 69, 44 such as asbestos or glass cloth to avoid marring the surface of the glass sheet or cause undue heat transfer.  In the case of the upper mould the material must be porous.  In the tempering section the bent glass sheet 12 is cooled by air from blast heads 20.
Patent GB-816548-A (GB)
Title: Improvements in or relating to mine shores
IPC: E21D11/30
Filed: 1957-12-27
Abstract: 816,548. Mine roof supports. USSPURWIES G.m.b.H., J. Dec. 27, 1957 [Jan 12, 1957], No. 40157/57. Class 20(2) A sole plate 1 for mine roof supports has an area about twice the cross-section of the support and has its corners 3 bent up substantially at right angles. A rectangular sole plate 1 has its corners 3 bent on a line at 45 degrees to the sides about the same length as the unbent sides 5. A hollow prop 2 is welded at 7 on to the centre of the plate 1 and has a cutout 8 for a crusher block.
Patent GB-1513020-A (GB)
Title: Article weight grading apparatus
IPC: G01G15/00
Filed: 1976-09-28
Abstract: 1513020 Weighing assembly STAALKAT BV 28 Sept 1976 [6 Oct 1975] 40268/76 Heading G1W A weighing assembly for use in grading articles such as eggs, tomatoes or fruit comprises a tray 1 mounted from a support 6 by leaf-springs 5 for downward deflection a first distance determined by the article weight, a stop 15, Fig.1, for limiting deflection of the tray to a second distance less than the first distance, means for gradually changing the relative position of the stop and support so that the second distance approaches the first distance, means for sensing when the first and second distances are substantially equal, and means for identifying the weight grade of the article. In Fig.1, support 6 is adjustably mounted on member 7 which is pivotally mounted on arms 8, 9 pivoted to a fixed support at 8a, 9a. In the position shown, full deflection of the tray under the effect of the weight of article 3 is prevented by arm 10 of tray 1 engaging a fixed stop 15. As a cam 11 is turned, support 7 is raised, and when the first and second distances are equal, tray I moves upwardly with support 6 and a magnet 37 operates a reed switch 38, the position of cam 11 when this occurs being determined photo-electrically or by means of micro-switches as in Fig.2 to determine the weight grade. In Fig.2, the tray carries an arm 7 engaging a stop 14 at the end of a pivoted arm 9. As the cam 11 rotates stop 14 is lowered, and arm 7 follows stop 14 until the first and second distances are equal, further movement of arm 9 causing switch contacts 16 to make. The position at which this occurs is served by micro-switches 24 in series with contacts 16 and co-operating with a notch 19, the micro-switches controlling sorting of the articles according to weight grade. Contacts 16 and microswitches 24 may be replaced by photo-electric devices. In Figs.5 and 6, each leaf-spring comprises three limbs joined at one end. The position of the cam 11 when the first and second distances are equal and tray 1 no longer follows stop 14 is sensed photo-electrically by means of masks 32, 34 having apertures 31, 33 which allow light from lamp 35 to fall on to one of the photo-cells 36 when the masks move relative to each other, the particular one on which the light falls determining the weight grade. Alternatively the arrangement may be such that the weight grade is determined by the number of photo-cells illuminated during the total relative movement of the masks.
Patent GB-1190577-A (GB)
Title: A New of Improved Stripping Composition.
Inventor: SCOTT ERNEST KENNETH
IPC: C09D9/00
Filed: 1966-08-10
Abstract: 1,190,577. Stripping compositions. TAK CHEMICALS Ltd. 20 July, 1967 [10 Aug., 1966; 9 Sept., 1966], Nos. 35723/66 and 40451/66. Heading C5D. [Also in Division C7] A water-dilutable paint stripping composition comprises: (a) chlorinated hydrocarbon, which may be methylene chloride or a mixture of methylene chloride and orthodichlorobenzene; (b) an organic acid which is preferably formic acid and, (c) an anionic emulsifying agent which is or includes a "long straight chain" organic sulphate which may be a mixture of long chain alcohol ether sulphate and an alkylphenol polyglycol ether sulphate. By a "long chain" compound is meant a compound which includes a straight chain of at least ten atoms which are either carbon or carbon and oxygen atoms. In the composition there may be incorporated a polyvinyl alcohol as stabilizer and dibutyl thiourea as corrosion inhibitor.
Patent GB-1419872-A (GB)
Title: Clad optical fibres
IPC: G02B6/02
Filed: 1973-08-30
Abstract: 1419872 Optical fibres AMERICAN OPTICAL CORP 30 Aug 1973 [30 Aug 1972] 40947/73 Heading C1M An optical fibre comprises a high refractive index core 36, a lower refractive index cladding 32, the cladding being spaced from the core by spacer members 40. The fibre is produced by inserting a high refractive index material rod into a tube of a lower refractive index material, inserting spacer rods between the rod and cylinder and heating and drawing the resultant assembly to produce the fibre.
Patent GB-1346257-A (GB)
Title: Telecommunications systems
IPC: H04B1/74
Filed: 1971-09-03
Abstract: 1346257 Transmission systems SIEMENS AG 3 Sept 1971 [4 Sept 1970] 41159/71 Heading H4R In a telecommunications system in which a receiver at one station can be switched over from a presently operational disturbed channel to another channel, with the operational channel malfunction indicated by non reception of a pilot tone transmitted thereon, a pilot generator is provided at the one station and transmits over a return channel a signal whose frequency or frequencies indicate the operational state of the available channels. As described data is fed in parallel to the inputs of two channels A and B from a transmitter 11 at a terminal station I. A pilot signal, from generator 15, is also fed to the two channels and, at a terminal station II, pilot receivers PA and PB are arranged to detect the pilots on the two channels and effect switch over from a faulty channel to a working channel in a manner as described in Specification 40504/71. The failure of one of the channels A or B is immediately detected by the respective pilot receiver PA or PB and causes the deenergization of the normal pilot generator 15 for the return path and the energization of one or the other or both the generators 16 and 17, depending on whether channel A, channel B, or both channels A and B, are faulty, the generators 15, 16 and 17 being respectively of 300, 320, and 340 Hz. At the terminal station I pilot receivers are provided for all the possible pilot frequencies on both incoming channels and a logic circuit 31, in response to the selective energization of the pilot receivers by the incoming signals lights one or more of the lamps 321 to 325 indicating the functional state of all the outgoing and incoming channels. Each pilot receiver includes a circuit which detects noise in the incoming signal and which blocks the receiver to cause change over to a substitute line if the noise level exceeds a predetermined value.
Patent GB-892301-A (GB)
Title: Improvements relating to pedestrian subways
Inventor: SMITH JAMES LINDSAY
IPC: E02D29/05
Filed: 1959-12-04
Abstract: 892,301. Subways. FITZPATRICK & SON (CONTRACTORS) Ltd. Dec. 2, 1960 [Dec. 4, 1959], No. 41302/59. Addition to 834,675. Class 85. A method of constructing a pedestrian subway as described in the parent Specification modified in that it is constructed beneath a railway track instead of a roadway.
Patent GB-901644-A (GB)
Title: Improvements in or relating to recording or playback assemblies
Inventor: CAMRAS MARVIN
IPC: G11B15/67
Filed: 1958-12-22
Abstract: 901,644. Magnetic recording and reproducing apparatus. ARMOUR RESEARCH FOUNDATION OF ILLINOIS INSTITUTE OF TECHNOLOGY. Dec. 22, 1958, No. 41325/58. Class 40 (2). A tape record apparatus is provided with a threading member which engages a coupling on the end of the tape on a spool irrespective of the angular orientation of said coupling when the spool is initially placed on its spindle. The coupling on the end of the tape comprises a length of material 84 wider than the tape itself so that the end is retained within a spool 78, Fig. 5, by turned-in edges of the flanges thereof. A hooked end 86 is provided which engages a hook 87 on the end of a threading member 88 secured at its other end by a closed loop 88a on the hub 62 of the take-up spool 61. The spool may be removed from or inserted in an edgeways recess 18, Fig. 1, the driving spindle therefore being axially removable under the action of a spring 25, lever 39 and a cam 41 connected to the operating controls. When the latter are switched to the operative position a motor 38 drives the shaft 21 slowly counterclockwise through a friction clutch until the hooked ends of the coupling and threading member engage. The resulting tension actuates a sensing member 95 to operate a switch 102 to establish a normal forward drive in which the take-up motor 74 and capstan motor 59 are started. Subsequently, a conducting strip on the tape short circuits a pair of contacts 100, 105, Fig. 1, to energize a solenoid 108 and being a pressure roller 91 against the tape and capstan 51. Near the end of the travel of the tape a conducting strip thereon short circuits a pair of contacts 111, 112 to energize a relay to effect an automatic reversal or to stop the machine. The reversal may be a fast rewind or, alternatively, the capstan motor may be reversed and an alternative head switched into circuit to transduce a second track on the tape. At the end of the rewind the threading member 88 comes to a stop as its other end is secured to the spool 61. The hook on the threading member may be spring loaded so that it detaches itself, or the spool may be permitted to stop owing to the provision of the slipping clutch on the shaft 21. The spool may then be removed after a slight clockwise rotation manually.
Patent GB-911648-A (GB)
Title: Method of making models, e.g. for the automobile industry
IPC: B44B1/02
Filed: 1959-12-04
Abstract: 911,648. Moulding models for the automobile industry. VERTIN, T. D. Dec. 4, 1959 [March 31, 1959], No. 41334/59. Class 87(2). An intermediate male master pattern is made by (a) making a full scale clay model, Fig. 1 (not shown), (b) forming a base structure from hollow aluminium or plastic blocks, Fig. 2 (not shown), (c) releasably fixing plywood or plastic substructures 29, Fig. 3, on the blocks 13, (d) making female plaster moulds of the various parts of the car from the clay model, (e) making male plastic patterns from the female moulds, (f) filling in the surfaces of the male patterns with wax, and (g) attaching the male patterns to the substructure to form the finished model, Fig. 10. Specification 868,266 is referred to.
Patent GB-844297-A (GB)
Title: Horizontal reel type bean sizer
IPC: B07B1/22
Filed: 1958-12-22
Abstract: 844,297. Sifting apparatus. FOOD MACHINERY & CHEMICAL CORPORATION. Dec. 22, 1958 [Jan. 15, 1958], No. 41364/58. Class 117 A bean grader includes a cylindrical rotatably mounted reel 14 with end rings 70, 72 interconnected by circumferentially spaced and radially disposed paddles 74a, 74b and bars 76, thus providing bean-sizing slots between the paddles and bars. Beans are fed to one end of the reel through a hopper 18, and those having a lateral dimension less than a predetermined value fall to a hopper 20 whereas the remainder pass from the opposite end of the reel. Adjacent paddles have different widths and the bars are rotatably mounted about their axes, and the arrangement is such that at the lower periphery of the reel the bars are oriented so that opposite corners of the bars face the paddles so defining a minimum size opening for the passage of beans. At other positions around the reel the bars are turned so as to increase the openings and thereby to release beans jammed therein. Bar rotation is effected by a cam mechanism including cam follower arms 80 clamped on extensions of the bars which project through the ring 72. Each arm carries a cam roller 86 which is confined within a cam groove 88 in a fixed cam ring 89 located between the feed hopper and the ring 72. As the reel is rotated by a motor 16 via gearing 90, 94 the bars are turned. The reel is mounted on rollers on a frame 12, the inclination of which is adjustable by elevating screws 30. Two grading operations can be effected by the set of bars shown since the distance between the corners 95, 97 of each bar is different from that between the corners 96, 98, so that by loosening the arms 80 on each bar and turning the latter through 90 degrees different sized opening will be provided.
Patent GB-1108099-A (GB)
Title: Apparatus for twisting together groups of wires or cables
Inventor: SLYTHE KJELL
IPC: H01B13/02
Filed: 1966-09-16
Abstract: 1,108,099. Forming quads. INTERNATIONAL STANDARD ELECTRIC CORPORATION. 16 Sept., 1966 [23 Sept., 1965], No. 41411/66. Heading H1A. [Also in Division D1]  After twisted wires 1 have passed through a die 2, they are opened as at 3 by a lay-plate 4 rotated solely by the wires. The wires then pass through a die 5 where they are again twisted to form the final product 6. The lay plate 4 constitutes the inner part of a bearing so that it exerts no resistance to the rotation of the wires. The invention is applicable to quadding machines used for the twisting of telephone cable star quads.
Patent GB-1068057-A (GB)
Title: Improvements in or relating to bridged polypropylene
IPC: C08K5/42
Filed: 1964-10-09
Abstract: A solid bridged thermoplastic polymer of structure P-HN-O2S-Z-SO2-NH-P wherein P is a stereoregular polypropylene radical and Z is an organic radical free of hindering groups, is prepared by heating a stereoregular polymer of propylene and from 0.1 to 0.8 mole, per mole of polypropylene, of a sulfonazide R(SO2N3)x, wherein R is an organic radical inert to bridging reactions and x is an integer of from 2 to 8.  An elastomeric hydrocarbon polymer such as polyisobutylene or ethylene-propylene-dicyclopentadiene terpolymer, also may be present.  In examples, the sulfonazides used are a mixed sulfonazide of a chlorinated alkyl hydrocarbon containing an average of 11 carbon atoms, 2 chlorine atoms and 2 sulfonazide groups per molecule, and 1,10-decane-, 1,10-octadecane, 1,8-octane- and 1,3 - benzene - bis(sulfonazides).  4,41 - Thiobis (3 - Me - 6 - t - Bu - phenol) is used as stabilizer.
Patent GB-861147-A (GB)
Title: Improvements in or relating to nozzle sleeves for the slow casting of steel, more particularly in vacuum
IPC: C21C7/10
Filed: 1958-12-23
Abstract: 861,147. Ladle nozzles. SVENSKA KULLAGERFABRIKEN A.B. Dec. 23, 1958 [Jan. 28, 1958], No. 41571/58. Class 82(1) A nozzle sleeve for the slow casting of steel has an outlet hole the diameter of which varies along its length, the smallest portion 3 (Fig. 1) having a diameter not exceeding 15 mm. and a length not exceeding 1.5 times the diameter. The sleeve may have an insert 8 (Fig. 2) of material having a higher resistance to erosion than has the body of the sleeve, and may be produced without a hole, as shown in Figs. 3 and 4, for subsequent drilling to the required bore size.
Patent GB-1074332-A (GB)
Title: Polyurethanes
IPC: C08G18/20
Filed: 1964-10-12
Abstract: Polyurethanes are prepared by mixing an organic polyisocyanate with an organic polyol the reaction mixture including a catalytic amount of an alkyl diazabicyclooctane of formula <FORM:1074332/C3/1> where R is a methyl or ethyl group and R1 is hydrogen or a methyl or ethyl group, and a catalytic amount of N-ethyl morpholine.  A blowing agent a foam stabilizer may also be included.  An organotin catalyst may also be included in the mixture.  The blowing agent may be a fluorocarbon and the foam stabilizer a siloxane oxyalkylene copolymer.  Foams may be prepared by the "prepolymer" or "one shot" techniques.