baber/WOPTO huggingface dataset:
Patent GB-544656-A (GB)
Title: Improvements in or relating to cutting dies or methods of making the same
IPC: C14B5/02
Filed: 1940-10-21
Abstract: 544,656. Cutting dies. UNITED SHOE MACHINERY CORPORATION. Oct. 21, 1940, No. 15507. Convention date, Oct. 23, 1939. [Class 31 (i)] [Also in Group XXII] In making cutting dies, particularly dies for cutting shoe part blanks as described in Specification 465,107, having a shaped core member round the periphery of which a laterally flanged blade strip is bent, bending is effected about a corner portion of the core member of such sharpness as to cause looping of the flange away from the core and the loop is then flattened to form a continuous flange at the corner portion of the die. The blade strip 12 which may have double cutting edges 14, 16 and a pair of flanges 18 to engage opposite surfaces of the core member 10, is bent round the core member and finally secured thereto by a series of spot welds. Bending at a sharp corner is effected between a U-shaped support 36 and a tool provided with a tapered head 24 having nose portions 26, 27 engaging the blade at opposite sides of the flanges, and being recessed at 28, 30, to provide clearance for the the flanges. The head also has a slot 32 for receiving the edge of the core member and a guide 34 to enter the space between the flanges. When the tool is moved relatively to the member 36 to force the blade into the recess 38 as shown in Fig. 2, loops 40 form in the flanges. The bending about the corner is then completed. Prior to starting the bend at the corner the flange is secured to the core at 42 by a spot weld and a second spot weld is effected at 44 after completion of the corner bend. The loops 40 are flattened out at 43 between a pair of welding electrodes.
Patent GB-710355-A (GB)
Title: Improvements in and relating to dies and pressure die casting
Inventor: COLE RICHARD ARTHUR RHYS
IPC: B22C9/06
Filed: 1951-06-30
Abstract: 710,355. Casting composite articles. HIATT & CO., Ltd. Sept. 29, 1952 [June 30, 1951], No. 15563/51. Class 83 (1) A separable die for use in pressure diecasting on articles such as headed nails inserted therein, comprises elastic sleeves arranged to contract about the exterior of the articles when the die sections are closed and seal off flash. A multiple-impression die for casting read tags 20 on nails 21 comprises a fixed member 3 and a movable member 4 containing recesses 9 for the nail heads and core holes 11 for the nail shanks. Each core hole accommodates an elastic sleeve 17 of, e.g., india-rubber bonded to a metal sleeve 18. Movement of the die 4 on its carrier 5 to the casting position causes a back plate 13 to compress the elastic sleeves axially and thereby contract about the nail shanks. Specification 619,031 is referred to.
Patent GB-110795-A (GB)
Title: Improved Device for the Attachment of Cables, Wires, and the like, upon Aircraft.
IPC: B64C3/00
Filed: 1916-11-01
Abstract: 110,795. Sopwith Aviation Co., and Sopwith, T. Nov. 1, 1916. Shackles.-The ends of cables &c. upon aircraft are secured to a swivelling or trunnion pin D embraced by a sheetmetal carrier A anchored by a plate L. The carrier is stamped or cut with a longitudinal slot in which a projection or shoulder on the trunnion engages. The pin is formed diametrically with a screwed hole in which the screwed end I of the cable is adjusted.
Patent GB-1499697-A (GB)
Title: Narrow band communication system
IPC: H04B1/66
Filed: 1976-04-15
Abstract: 1499697 Baseband vocoder INTERNATIONAL STANDARD ELECTRIC CORP 15 April 1976 [16 April 1975] 15665/76 Heading H4R In a reduced bandwidth transmission system, wherein the baseband is transmitted direct and the higher harmonic range is transmitted as frequency- or time-multiplexed control signals for harmonic generators at the receiving end the harmonic generators comprise an arrangement of a generator MHG of frquency fg, which is controlled by variations in the fundamental voice frequency derived from the transmitted baseband signals, and a number of frequency dividers which each divide the frequency fg to produce one harmonic frequency. In a first embodiment (Fig. 2, not shown), a filter is used to separate the fundamental voice frequency fo from the baseband signal and a threshold circuit converts the filtered sine wave into a constant amplitude square wave from which a D.C. control voltage proportional to the frequency fo is derived. An oscillator of frequency fg is then controlled by this D.C. voltage to produce a high frequency fg which varies with the frequency fo, but is not a direct integral multiple thereof, nor is locked thereto. Figs. 3 and 4 (not shown) illustrate arrangements wherein the generator frequency fg is locked to an integer multiple of the frequency fo. The Fig. 4 arrangement employs a phase lock loop arrangement with a voltage controlled oscillator, whereas that of Fig. 3 uses a frequency multipler in combination with a filter and a threshold circuit to produce directly from the baseband signal an integer multiple of the frequency fo. In all arrangements the frequency fg is applied to dividers FD which produce the various harmonic frequencies for application to variolossers VA controlled by the transmitted control signals in known manner.
Patent GB-931065-A (GB)
Title: Improvements in or relating to the crimping of yarns or threads
IPC: D02G1/08
Filed: 1961-05-01
Abstract: 931,065. Spinning yarns; twist-tubes; stopmotions. ONDERZOEKINGSINSTITUUT RESEARCH N.V. May 1, 1961 [May 2, 1960], No. 15703/61. Classes 120 (2) and 120 (3). False-twisting apparatus for use in crimping thermoplastic yarns comprises rubbing surfaces formed as annular bands on the side-faces of two discs which face each other. The axes of the discs are slightly inclined to one another, so that they engage the yarn only at their point of nearest approach, they are displaced laterally relative to the yarn in opposite directions so that both rubbing surfaces have a component of movement in the feeding direction as well as a component in the direction of movement required to produce the false-twist, and the shortest distance between them is 30-85% of the mean diameter of the discs. The rubbing surfaces are so inclined that they make an angle with each other of less than 10 degrees and they may be shaped as parts of hyperbolic planes or conical surfaces. As shown, yarn 1 passing through guides 25, 24 (carried on fixed arms 23, 22) and between contrarotating discs 2 and 3 are engaged, and false-twisted, by rubber rims 4 and 5. The discs are driven from a belt 12 (which may serve a number of false-twisting stations) through a grooved drum 11, string 10 or belt (not shown) and grooves 8 and 9, or by gearing (not shown). The discs are supported by a rigid arm 26 and an arm 27 attached to a pivot 28 which can turn in two bearings 29, 29a, and is so inclined to the vertical that the disc 2 tends to move away from disc 3. The discs are urged together by a spring 31, acting on an arm 30 connected to arm 27 and tensioned by a pivoted member 33 the position of which is normally maintained by the tension in the yarn on which an extension or feeler 36 rests. If yarn 1 breaks, the feeler 36 falls, member 33 deflects to enable spring 31 to relax, and the discs separate. Deflection of arm 27 is limited by a pin thereon engaging in a slot 37 and controlled by a liquid e.g. oil, damper, Fig. 4 (not shown).
Patent GB-892016-A (GB)
Title: Improvements in and relating to buffing wheels
IPC: B24D13/04
Filed: 1958-05-15
Abstract: 892,016. Polishing-buffs. CODMAN CO., F. L. & J. C. May 15, 1958 [June 27, 1957], No. 15716/58. Class 60. A buffing wheel comprises an annulus of buffing material 20 consisting of a series of slabs 20a which are mounted at their inner ends on a centre 12 so as to extend in edge-abutting relationship with the radial edges of the slabs unconnected to adjacent slabs, each slab, which before assembly in the wheel is initially rectangular, consisting of bias fabric folded to provide multiple plies with the radial edges of the slabs doubled; the circumferential dimension of each slab is at least a major fraction of the radial dimension and the sum of the lengths of the slabs before being formed into the annulus is at least substantially longer than their length in the wheel at least along the inner circumference, the excess material being accommodated by crumpling. In a process for manufacturing the wheel, the fabric may be dispensed from a roll and its edges a, b folded to the centre line c, Fig. 6, of the material and then similarly folded one or more times to produce the multiple plies, the edges of the folded material thus being doubled; preferably two superposed layers of fabric may be folded as one. Longitudinal rows of stiching 22 may be used to secure the plies in their folded position so that the material may be severed into approximately square slabs. The slabs are arranged in two rows 20o, 20r, Fig. 7, of between 5 and 10 slabs for each row and joined together by stitching to a tape 24 on one or both sides of the slabs. The assembly is then folded along its centre line and formed into annuli 20o, 20r, by being drawn into a groove 30, Fig. 8, in an apparatus which thereafter comprises the slabs into a shape to fit into the centre 12, which may be of chipboard or like cheap material, of the buffing wheel to which sideplates 16 of fibreboard or the like are fitted. In another embodiment, the slabs may be severed to a length double that of the first embodiment and folded along a median line.
Patent GB-732436-A (GB)
Title: Bonded rubber bushes
Inventor: REED ALUN JOHN
IPC: F16F1/38
Filed: 1951-07-03
Abstract: 732,436. Resilient joints. METALASTIK, Ltd. Oct. 2, 1952 [July 3, 1951], No. 15731/51. Class 108 (3). A method of assembling resilient joints comprises the use of a bush comprising an expansible continuous hollow cylindrical metal element 11 around which is moulded a rubber sleeve 12. According to the invention, the bush is inserted into the bore of an outer metal element 19, and the element 11 is outwardly expanded to pre-compress the rubber sleeve in all radial directions to result in adherence between the element 19 and the sleeve. The tube 11 and sleeve 12 may be a force, push, sliding, or slack fit, within the housing 19. The outward expansion of the tube 11 may be effected by a tapered mandrel. The tube 11 may be of mild steel or brass. The tube 11 and sleeve 12 may be expanded within an outer tube the joint thus produced being inserted in the housing 19. The collars 26 may result from tightening the nut 23a on projecting ends of the rubber bush which result from its radial compression. Alternatively the rubber bush may extend beyond the ends of the tube 11 before radial precompression. Also an end of the bush may be formed during moulding with a flange. The joint may be formed by two members 11 and respective bushes 12, assembled within a common housing 19 (Fig. 4, not shown). In the construction shown in Fig. 6, the tube 11 is initially cylindrical, but is expanded by means of a mandrel and expansible collets to conform with the shape of the housing 14. The tube 11 may be uniformly expanded before forming the ribs 30. The invention may be applied to the jointing of track links (Figs. 7, not shown), of endless track vehicles, in which case three bushes 12 are moulded side-by-side on a single tube 11 for insertion in the three associated lugs of a track-link joint. The tube 11 may be expanded by the action of driving into position a central pin having tapered ends. Alternatively a tubular central pin having internallythreaded ends for set bolts, may be disposed within the tube 11. In another construction of joint without end flanges, the ends of the tube 11 are outwardly flared after the expanding of the tube (Fig. 8, not shown). In another construction (Fig. 9 (f), not shown) the outer housing is split, and has a clamping bolt or nut. Specifications 348,327, [Group XXXIV], and 581,464 also is referred to.
Patent GB-612457-A (GB)
Title: Improvements relating to apparatus for making internal measurements
IPC: G01B5/08
Filed: 1946-05-24
Abstract: 612,457. Linear - dimension gauges. QUALTERS, E. L. May 24, 1946, No. 15744. [Class 106 (ii)] Measuring-apparatus for internal measurements with a section in which is mounted a plurality of feelers radially displaceable by a wedge-shaped arm has antifriction bearings between the feelers and the arms. As shown, the apparatus has a core 8 with a pair of diametral slots arranged at right angles. Slidably mounted within the centre of the core 8 is an axially displaceable member 11 of cruciform shape, the arms 11a being wedge shaped and an accurate sliding fit in the slots. Slidably mounted in the outer portions of the slots are feelers 12 provided with inclined inner ends complementary to and parallel to the inclined surfaces of the arms 11a. Near their inner ends the arms 12 have holes 12b to position coil springs 13 which serve as a resilient girdle tending to draw the feelers 12 inwardly. Between the inclined faces of the feelers 12 and the arms 11a are sets of antifriction rollers 14. Attached to core 8 is a housing 15 into which passes the barrel 16a of a micrometer screw in abutment with the axially displaceable member 11. In a modification (not shown) spring means are provided which tend to move the axial displaceable means from within the core of the body section.
Patent GB-439053-A (GB)
Title: Production of resorcinol
IPC: C07C37/04
Filed: 1934-05-28
Abstract: Resorcinol is obtained by sulphonating benzene to the monosulphonic acid with sulphur trioxide in a medium of liquid sulphur dioxide, the reaction being carried out slowly under pressure at a temperature of 10 to 35 DEG  C., then converting to the disulphonic acid with a further quantity of sulphur trioxide preferably in the absence of a diluent and at a temperature finally reaching 100 DEG  C., and finally hydrolyzing the product directly with alkali metal hydroxide. The resorcinol is isolated by acidifying.  The disulphonation is preferably carried out after removal of the solvent.  An example of the process described is given.
Patent GB-736631-A (GB)
Title: Improvements in or relating to vibration generating motors
Inventor: CARTER JOHN GEORGE
IPC: H02K33/18
Filed: 1952-07-16
Abstract: 736,631. Reciprocating motors. GOODMANS INDUSTRIES, Ltd. June 10, 1953 [July 16, 1952], No. 16020/53. Divided out of 736,593. Class 35. A magnetic vibrator comprises a plurality of driving coils wound on an armature and a switch mechanism for connecting the coils in series or in parallel or for connecting the coils selectively to the supply. Fig. 1 shows a permanent magnet structure having an annular air gap in which three driving coils 12, 13, 14 are, located and carried by a former 7. These coils may be wound successively or together, i.e. the windings of the three coils alternate along the former, or in superimposed layers. While Fig. 1 shows a centrally located permanent magnet 1 with an axial bore to accommodate freely the driving rod 8, it is also possible to employ the reverse arrangement, namely, a centre pole member of mild steel and an outer permanent magnet ring.
Patent GB-141244-A (GB)
Title: Improvements in or relating to statoscopes
IPC: G01L19/08
Filed: 1919-06-25
Abstract: 141,244. Cuttriss, S. W. June 25, 1919. Barometric apparatus.-A statoscope, or instrument for use on aircraft &c. to indicate whether the machine is rising or falling, comprises a chamber having a flexible diaphragm adapted to operate a pointer and provided with means, such as a porous plate, for permitting continuous but restricted communication between the interior and exterior of the chamber. In the form shown in Figs. 2 and 4, the chamber 20 communicates with a chamber 22 having two diaphragms 23, 24 the movements of which are adapted, by means of links 25, 26, to cause rotation of a drum 27 on which are two arrows facing in opposite directions and so arranged that rotation of the drum brings one of the arrows opposite a fixed aperture 28 to indicate whether the machine is rising or falling. 29 is the porous plate &c. which, in the form shown, is surmounted by an adjustable valve 30 to regulate the rate of leakage: this valve may be separately mounted on the chamber 20. The operative movements of the diaphragms 23, 24, being in opposite directions, errors due to inertia effects are avoided.
Patent GB-774404-A (GB)
Title: Improvements in or relating to a pulverizing mill
IPC: B02C15/04
Filed: 1954-05-31
Abstract: 774,404. Grinding. COMBUSTION ENGINEERING, Inc. May 31, 1954 [July 24, 1953], No. 16034/54. Class 59 [Also in Group XXXIV] To permit the roller 17, Fig. 1, of a roller-and-ring grinding mill to be adjusted so that, despite wear, its grinding surface remains parallel to the co-operating surface 9a. of the ring 9, the trunnion shaft 15, about which the shaft 18 carrying the roller is angularly movable, is supported in a bearing comprising rotatable eccentric means adapted to move the shaft 15 in a direction normal to its axis and so provide the adjustment. The ring 9, Fig. 1, is mounted on a motor-driven shaft 3 and co-operates with one or more rollers 17 each of which is mounted on bearings 19 on a shaft 18 secured in an arm 21 on the trunnion shaft 15; a spring 23 adjustable by a screw 24 engages the arm and urges the roller towards the ring. Each bearing assembly for the shaft 15 consists of a cylindrical sleeve 31, Fig. 4, bearing within a split sleeve 29 and providing on its inner eccentric surface a bearing for an inner cylindrical sleeve 33 which similarly provides an eccentric bearing surface for the shaft 15. By suitable rotation of the two sleeves, the position of the centre of the shaft 15 may be moved so as to tilt the roller 17 and bring it into parallelism with the surface 9a. The sleeves 31, 33 are secured in their adjusted positions by stud bolts (37, 38, Fig. 2, not shown) which enter registration holes in radial flanges on the outer sleeve 31 and in the split sleeve 29 and inner sleeve 33; a series of these holes is provided in the three sleeves to provide numerous positions of adjustment. In the modification shown in Fig. 9, the shaft 15a has a central portion 39 aranged eccentric to its end portions 40 which fit in cylindrical bores in eccentric sleeves 41 bearing in the split sleeves 29; adjustment is effected by rotation of the sleeves 41 in the sleeves 29 and shaft 15a in the sleeves 41; in this case, the sleeves 41 may be secured in adjusted position by stud bolts 45 and the shaft 15a by a key 46 inserted in co-operating slots in the sleeve and shaft. If desired, the eccentric sleeves 41 may be omitted and use made of the eccentricity of the portion 39 of the shaft 15a to effect adjustment. Material is fed to the mill through a shoot 28, Fig. 1, and the crushed material passes upwardly in an air stream into a classifier 25 from which the fine materials are led away through an outlet 26 and the coarse materials are returned for further grinding through an outlet 27.
Patent GB-658719-A (GB)
Title: Improvements relating to drawing apparatus
IPC: B43L13/04
Filed: 1949-06-16
Abstract: 658,719. Drawing-appliances. KLEIN, J. June 16, 1949, No. 16048. [Class 97 (iii)] A guide member 11 for use with a rule or a set-square 50 for drawing equally-spaced parallel lines has a guiding edge 12 along which the square may move between an adjustable stop 19 and a fixed stop 17, a spring 23 for yieldingly urging the square 50 against the stop 19 being provided. As shown, the guide member 11 is L-shaped with a second set of stops 171, 191 and a second guiding edge 15 which permits hatching to be drawn in a direction at right angles to that using the edge 12. The guide member may be moved over a drawing board in engagement with the edges of an L-shaped square which itself slides in grooves arranged at the edges of the drawing-board. The square 50 may be urged against one of the stops by means of a spring-pressed plunger coplanar with the guide-member, instead of by a spring 23. A square is described having a member with a straight edge for co-operating with the edges 12, 15 and a further member which is rotatably secured directly or indirectly to the first member so as to provide an angularly adjustable ruling edge.
Patent GB-1468470-A (GB)
Title: Turbines
IPC: F01D5/30
Filed: 1975-04-18
Abstract: 1468470 Turbines GENERAL MOTORS CORP 18 April 1975 [22 July 1974] 16055/75 Heading FIT A turbine wheel 102, e.g. forming the third stage of a gas turbine engine (10), Fig. 1, (not shown), mounted on a free turbine shaft, comprises a number of blades 104 with roots 110 engaging in dovetail slots 100 in a disc 90, each blade having a four-sided stem portion 112 formed with a circular section hole 122 to define a position of weakness at which the majority of the blades will break before the average tangential stress in the turbine disc exceeds 0À9 of the ultimate tensile strength of the disc. The material of the disc and blades, and the size of hole and stem are chosen to ensure that at least 60% of the blades will separate.
Patent GB-1130720-A (GB)
Title: Method for manufacturing colour television receiver kinescopes
IPC: H01J31/20
Filed: 1966-04-13
Abstract: 1,130,720. Colour television tubes. SONY CORP. 13 April, 1966 [16 April, 1965], No. 16158/66. Heading H1D. In a method of making a multi-colour screen for a colour television display tube of the type utilizing a colour-switching grid of parallel wires or a similar post deflection focusing device adjacent the screen involving a photographic process in which areas of the screen are exposed to a point source of light through an optical mask having a pattern determined by the electron trajectories, the correct positioning of the mask is obtained by the preliminary use of a positioning plate provided with parallel opaque areas corresponding to the areas between the grid wires, this plate being adjusted until a spurious moire pattern resulting from light interference with the grid wires is removed and the plate then being replaced by the optical mask either in the same or an equivalent position. The optical mask may be prepared by first producing a negative by an electron beam printing method or by a photographic or tracing method depending on the scanning pattern of an electron beam and then producing the mask from the negative by a photographic process. After the first, red, phosphor areas are laid down on the faceplate, the remaining green and blue areas are successively laid down by a technique involving protecting certain areas by opaque material and exposing other areas to light from outside the faceplate without the use of a mask. The tube may be of the singlegun or plural-gun type.
Patent GB-443065-A (GB)
Title: Improvements in circuits employing multi-grid thermionic tubes
IPC: H03D7/10
Filed: 1935-06-04
Abstract: 443,065. Wireless receiving circuits; valve modulating circuits. NAAMLOOZE VENNOOTSCHAP PHILIPS' GLOEILAMPENFABRIEKEN, Emmasingel, Eindhoven, Holland. June 4, 1935, No. 16169. Convention date, June 6, 1934. [Class 40 (v)] In a multi-grid oscillator-detector or modulator volume is controlled by variation of the bias of a grid more remote from the cathode than the oscillator electrodes and the voltage applied to the oscillator positive electrode or screen is diminished as the control grid is rendered more negative. The Figure shows a potentiometer 8 for controlling the amplification in a known circuit in this manner to avoid change in the frequency and amplitude of the local oscillations.