baber/WOPTO huggingface dataset:
Patent GB-192265-A (GB)
Title: Improvements in and relating to card indexes
IPC: B42F17/18
Filed: 1922-01-03
Abstract: 192,265. Russell, J. C. Jan. 3, 1922. Racks and the like; locking-followers.-In card-indexes in which the cards are carried by oscillatory tubular supports mounted in a holder or frame, the card supports are each in the form of a split tube 5, Fig. 4, having a flange 13 projecting inwardly from one edge. The cards 15, Fig. 5, are each formed with a flange 16 at one edge which, when the card is inserted in the tube, engages the flange 13 and prevents withdrawal of the card. The tubes are mounted in a frame 1, Fig. 3, which may be adapted to slide into a cabinet, and has overhanging guideways 8, one of which is hinged, to retain the tubes. A follower 10, having friction springs, holds the tubes against the end of an inclined platform 9 on which the cards rest.
Patent GB-322670-A (GB)
Title: Improvements in or relating to electric lamp fittings
IPC: F21V25/04
Filed: 1929-01-03
Abstract: 322,670. Revo Electric Co., Ltd., and Reeves, F. H. Jan. 3, 1929. Cut-out arrangements. - An explosion-proof lamp for use in mines, petrol stores &c. has an enclosed flame-proof chamber l comprising a cylindrical member a, Fig. 1, and a piston member d slidable therein, opposed contacts r, s being carried by these members and springs o acting upon the piston member to break the lamp circuit within the flame-proof chamber when the lamp reflector f or lamp closure fastenings are released. In a modification, the circuit is also broken on breakage of the lamp globe. The member a has cooling fins c and a broad flange b machined on its under surface against which the reflector f is secured by three studs h. A ring k fixed to the reflector supports the globe i and a flange e on the piston member d rests upon a corresponding internal flange of the reflector. Fixed to the under side of the piston member is the lamp-holder t. The springs o surround pins p screwed into the top of the member a and passing freely through the bottom of the piston member d and through the insulating blocks m, n carrying the contacts, which are provided with terminals for the electric leads. On release of the studs h the piston member d is forced downwardly by the springs, breaking the circuit, the movement being limited bv stops q on the pins p. The contacts r, s are hermetically sealed by a sealing compound. In Fig. 2 the flame-proof chamber 20 is constituted between a hollow piston member 9 in which is sealed the lamp-holder 11, and an insulating plate 6 through which pass terminal stems 4. Fixed to the piston is a wire loop 14 adapted to bear against the lower inner face of the globe 16, and the piston member is pressed downwardly by springs. The globe is carried by a ring 17 fixed to the body 1 by studs 18. On release of the studs 18 or breakage of the globe the piston member is forced downwardly so that the spring contacts 12 of the lampholder leave the terminal stems 4, the movement being limited by ring 10. The plate 6 and lampholder are sealed by sulphur cement.
Patent GB-326901-A (GB)
Title: A new or improved pit prop
IPC: E21D15/52
Filed: 1929-01-03
Abstract: 326,901. Spencer, Ltd., J., and Jones, K. J. D. Jan. 3, 1929. Mine props of the kind in which telescoping members are held in adjusted position by means of a wedge which supports the upper member and passes through slots in the lower member. have the wedge supported by a cross member made of a flat plate or bar b, the ends of which are turned down over the ends of the slots. The wedge d is provided with a cross key e at one end to prevent its complete removal and an aperture f at the other end by which releasing means may be attached. The wedge may support the lower end of the upper member directly, or a layer of friable material k on which the upper member rests, may be interposed, such material escaping at the sides of the wedge under pressure.
Patent GB-605903-A (GB)
Title: Improvements in or relating to space heaters
IPC: F24H3/00
Filed: 1946-01-04
Abstract: 605,903. Electric heaters. COMPTON ORGAN CO., Ltd., J., and EAGLE, R. F. Jan. 4, 1946, No. 361. [Class 39(iii)] In a space heater a heating unit 1 comprising lengths of resistance wire 4a extending between spaced insulating supporting plates 3 is mounted within a casing 10, the back and front walls of which are perforated for the passage of air and are freely exposed to the heating unit. The unit 1 is resiliently mounted by means of eight spring links 6 connected to the corners of the plates 3 and to lugs 7, and since one of the plates 3 is free to move between units 8 on rods 5 joining the plates the wires 4a are maintained under tension. The heating unit may consist of three continuous lengths of helical wire threaded through holes in plates 3 of mica, and a switch 13 allows three or two wires to be connected in series or parallel or a single wire to be in circuit. In the example shown in Fig. 2, the front, top and back of the casing are constituted by a single sheet 10 of metal bent to the form of an inverted U with divergent sides. The casing may alternatively be made in two parts, one being removable, and it has end walls 11 with flanges 11a, and a perforated bottom 9. An indicator lamp 15 is energised when the heater is connected to the supply, whether the heater is operating or not. In another example, Figs. 4-7, (not shown), the front, back and sides of the casing are constituted by a perforated wrapper plate wrapped round four upright rods, the top and bottom plates of the casing being located by spacing tubes slid on to the rods. The bottom or plinth is in the form of a perforated plate with a depending skirt supported clear of the ground by domed nuts on the bottom ends of the rods. The Provisional Specification also describes a heater containing a number of heating units, and each unit may comprise a pair of spaced mica plates having slots formed in its edges, each turn of wire passing round both plates and being located in the edge slots of the plates.
Patent GB-283549-A (GB)
Title: Improvements in or relating to radio transmission systems
IPC: H03B19/10
Filed: 1928-01-05
Abstract: 283,549. Lorenz Akt.,-Ges., C. Jan. 13, 1927, [Convention date]. Thermionic generators; piezo-electric units. - In a shortwave wireless transmitting system the grids and anodes of a pair of push-pull valves 1, 2 are connected to tuned oscillation circuits 3, 4 and the source of anode current is connected to zero potential points of the circuits by a lead from which an aerial circuit 11 - - 14 is excited and in which there exists a frequency double that of the oscillation circuits. For this purpose an oscillation circuit 9, 10 tuned to the double frequency is inserted in the anode lead and coupled to the aerial circuit. According to modifications, a piezo-electric crystal is inserted in the control circuit (Fig. 3, not shown); to produce very short waves the oscillation circuits comprise the internal valve capacities and the connection wires only (Fig. 2, not shown).
Patent GB-627618-A (GB)
Title: Improvements in or relating to assemblies suitable for use in blind riveting
IPC: B21J15/34
Filed: 1947-01-07
Abstract: 627,618. Blind riveting. BRITISH UNITED SHOE MACHINERY CO., Ltd., and RUDDOCK, R. Jan. 7, 1947, No. 498. [Class 43] [Also in Group XXII] Tubular rivets are assembled with headed mandrels by a machine having means for delivering mandrels in an orderly manner from a bulk supply, means for similarly delivering rivets, and means for assembling a mandrel and rivet, each mandrel being necked in the machine prior to completion of the assembling operation. A batch of identical mandrels are supplied to sorting means A, being placed in a hopper 21 and then passing into a raceway 23 in which they hang by their heads in a row. An annular carrier 29 is driven round anticlockwise about a horizontal axis through 30 degrees at a time, so that during a rest period at the end of each 30 degrees movement one of twelve equally-spaced recesses 31 in the carrier is uppermost. During each such rest period two detents 25, 27 provided on the means A move across the raceway 23 to detach the end mandrel from the row, said mandrel then dropping into the uppermost recess 31 until its end contacts a fixed internal guide 33. As rotation proceeds each mandrel is carried round to a station V where its head engages at a rest period a stop 37, situated beneath the lowermost recess 31 and secured to a screw 39 threaded in a fixed bracket 41. During this rest period the mandrel, positioned lengthwise by the stop 37, is necked by a pair of opposed cutters, the position of the neck relative to the head of the mandrel being determined by the position of the adjustable screw 39. The depth to which the mandrel is necked may be varied by making the operation of the cutters adjustable. A batch of identical tubular rivets with heads is supplied to sorting means B similar to the means A. A carrier 55, rotated clockwise in synchrony with the carrier 29 about a horizontal axis perpendicular to and level with the axis of the carrier 29, comprises a disc 59, which is integral with but spaced at its periphery from a thinner disc 57 and which has twelve equally-spaced U-shaped recesses 61, the uppermost of which at each rest period of the carrier receives the barrel of the end rivet from the means B, the head of the rivet lying between the discs 57, 59. As rotation progresses each rivet arrives at a station S where it is level with the axis of the carrier 29 and is aligned with a necked mandrel carried up from the station V ; at the station S during a rest period the mandrel is thrust out of the carrier 29 into its rivet by a driver bar 63 fixed to a guided, horizontal slide 65 operated by a lever 69. During further rotation of the carriers the assembled mandrel and rivet are retained in their recess 61 by a fixed guide 83 until they fall down a chute 85. Specifications 176,519, [Class 43], 501,415, 530,882, 558,156, 578,363 and 602,652 ear referred to.
Patent GB-639898-A (GB)
Title: Improvements in and relating to gramophone record envelopes
IPC: B65D85/57
Filed: 1948-01-07
Abstract: 639,898. Gramophone-record envelopes. HERZBERG MULLNE AUTOMATIC PRODUCTS, Ltd. Jan. 7, 1948, No. 506. Convention date, Nov. 20, 1947: [Class 146 (ii)] A gramophone-record envelope is' provided with a perforated flap 5 for binding in an album, a slotted handle flap 7 with tear lines 11 marked or perforated between it and the body of the envelope and with circular tear lines 12 marked or perforated to correspond with the labels on the record. After the envelope has been used to transport the record, the flaps 7 and the central parts are torn away and the envelope may then be bound in an album.
Patent GB-553715-A (GB)
Title: Moisture-proofed kraft paper
IPC: D21G9/00
Filed: 1942-01-13
Abstract: 553,715. Waterproof kraft paper; fabrics coated. WINGFOOT CORPORATION. Jan. 13, 1942, No. 510. Convention date, Sept. 26, 1941. Drawings to Specification. [Classes 96 and 140] Kraft paper is super-calendered using a high pressure, heated calender, e.g. as used for glassine paper, to reduce its absorbency. whereupon it is coated with a moisture-proofing lacquer, e.g. of nitro-cellulose, a rubber derivative such as rubber in cresol treated with hydrogen chloride, cyclized rubber, i.e. rubber treated with chlorostannic acid or tin tetrachloride, or chlorinated rubber, phenol sulphonic acid derivative of rubber, polyvinyl derivative, ethyl cellulose &c. or any of these compounded with wax. Examples specify cyclized rubber, paraffin, and toluol, e.g. together with mono-benzyl-paraaminophenol as an anti-oxidant or with petroleum jelly. Coatings. of high wax-content may be applied by hot-melt, and those applied in solution should be heated sufficiently to melt the wax when driving off the solvent. Pigments, dyes, or resins, e.g. ester gum, cumar, polymerized terpenes, cyclohexanone, and plasticizers may be incorporated in the coating mixtures.
Patent GB-209434-A (GB)
Title: Paving blocks and slabs of rubber compound and process of manufacturing the same
IPC: E01C5/22
Filed: 1924-01-08
Abstract: 209,434. Draullette, E. Jan. 8, 1923, [Convention date]. Compound or com posite blocks.-Rub ber paving - blocks formed of a plastic composition contain. ing mineral particles are built up in layer form, the successive layers containing the mineral particles in progressively diminishing quantities, so that the large amount of mineral particles in the lower face ensures a firm grip with the mortar or cement for securing the paving-blocks to the foundation. The layers are placed in a mould and heated under pressure. An upper layer of rubber may also be provided. The lower part of the rubber block 1 may be formed with cavities 3, 4, which can be filled with cement as shown in Figs. 1 and 2; or, as shown in Fig. 6, a cement layer 5 may be provided by means of which the blocks may be applied to the upper surfaces of bricks. The mineral admixture consists of either one or some of the following materials :-sand, lime, cement, gravel, porphyry, and sandstone powder. The plastic composition comprises waste rubber products and residues resulting from the purification of mineral, vegetable, or animal fatty bodies, the proportions being:-waste from air tube covers, mats, &c., 20 per cent to 40 per cent; waste from solid tyres &c., 65 per cent to 25 per cent; and fatty bodies, 15 per cent to 35 per cent. The plastic composition is heated and by means of mixing cylinders is incorporated with flowers of sulphur and mineral particles, the proportions being:-rubber and fatty bodies, 25 per cent to 75 per cent; sulphur, 5 per cent to 15 per cent; and mineral particles, 70 per cent to 10 per cent.
Patent GB-156602-A (GB)
Title: Improvements in dough rolling machines
IPC: A21C7/02
Filed: 1921-01-06
Abstract: 156,602. Union Wrapping Machine Co., (Assignees of Streich, F.). Sept. 19, 1914, [Convention date]. Rolling-machines. - A dough-rolling machine comprises a rotary inverted conical casing 13 driven through gearing 15, 14, within which is arranged a helical fence 24 secured by arms 27 to a fixed shaft 11. The lower end of the fence terminates in a semicircular member 25 which rests upon the bottom of the casing and is formed with upright flutes. Dough is fed in through a shoot 30, adjustably secured to the shaft 11 by a screw 32, and the rounded dough portions are delivered to a table 34. The interior of the casing 13 is fluted, preferably by a spiral thread, and the fence is built up of sections, which are roughened with the exception of the uppermost. A helical scraper or knife is secured to the loweredge of the fence.
Patent GB-1279743-A (GB)
Title: Improvements in composite elastic bands and garments incorporating such bands
Inventor: LYNAM JOHN EDWARD
IPC: B29C70/00
Filed: 1970-01-06
Abstract: 1279743 Composite elastic bands AUTOMATIC BRAIDING CO (NOTTINGHAM) Ltd 7 Dec 1970 [6 Jan 1970] 580/70 Heading A3V [Also in Division B5] A composite elastic band capable of being stretched elastically from a relaxed condition comprises an elastic ribbon 1, 2 to which stretch-limiting, flexible, strip material 4, 5 or 6 of non-woven fabric, is secured in such a manner that in the relaxed condition of the band the strip material is longitudinally puckered or compressed in the lengthwise direction of the band by the elastic ribbon. The extent of stretching of the composite elastic band is limited by the strip material. The elastic ribbon is secured to the strip material by adhesive or stitching along the lines S, said composite elastic band may incorporate at least two elastic ribbons 1, 2 disposed edge to edge with a gap therebetween, having strip material 6 of sufficient width secured to both the elastic ribbons. The composite elastic band may have two stretch-limiting strips 4, 5 between which the elastic ribbon is sandwiched neither of which is folded over the outer edges of the elastic ribbon. The composite elastic band may be subsequently incorporated in a cover 7, formed by a wide strip of knitted or woven fabric which extends over one side of the band and is folded over the outer edges thereof with the free edges of the cover either spaced apart (Fig. 2) or mutually overlapping (Fig. 7, not shown). Said cover of knitted or woven fabric may be provided by any part of a garment, including the marginal edge thereof, folded over the outer edges of the elastic ribbon and strip material (Fig. 5). The cover may be secured to the composite elastic band by spaced longitudinally extending rows of stitches S extending through the composite elastic band and garment. The adhesive employed to secure the strip material to the elastic ribbon may be applied either in transverse strips closely spaced longitudinally of the elastic ribbon, or in plain or fancy patterns along the length thereof. In another embodiment the cover strip is formed by a marginal edge of the garment (11d, Fig. 12 not shown) which is folded over and neatened or finished off with blanket stitching (11e, Fig. 12, not shown). In a further embodiment the above mentioned marginal edge has a garment lining secured thereto for example by overlock stitching 11g.
Patent GB-775598-A (GB)
Title: Improvements in or relating to foundation garments
IPC: A41C1/00
Filed: 1955-01-08
Abstract: 775,598. Girdles &c. GOURDON, D. A. Jan. 8, 1955, No. 650/55. Class 141. A girdle comprises front and back pieces having each of their side edges in the form of two concave arcs meeting in a peak, and side pieces 31, 32 having side edges of complementary shape. The front and back pieces are preferably stretchable vertically, while the side pieces have either horizontal or two-way stretch. The front piece 11, Fig. 2, preferably comprises two symmetrical sections 11a, 11b, the back piece being similarly formed. A crotch portion is formed by joining the corresponding bottom edges of the front and back sections, i.e. edge 12a of front section 11a is joined to edge 22b of back section 21b. If, on the other hand, the front and back pieces each comprise a single piece of material, an extra crotch piece is provided. The side pieces 31, 32 preferably have selvage top and bottom edges, although a hem allowance may be provided. Elastic strip inserts .50 may be provided near the upper edge of each side piece.
Patent GB-1151111-A (GB)
Title: Fluid-Operating Braking Equipment.
Inventor: GIBBONS PETER FREDERICK
IPC: B60T13/26
Filed: 1967-01-05
Abstract: 1,151,111. Fluid operating braking systems. WESTINGHOUSE BRAKE & SIGNAL CO. Ltd. 21 Dec., 1967 [5 Jan., 1967], No. 670/67. Heading F2F. A fluid-operated braking equipment incorporates both a "spring applied" and a "lockactuator" braking system, and includes brake control means incorporating a valve by the operation of which the further fluid pressure of the "lock-actuator" system is exhausted to render effective the locking means, operation of the valve further exhausting the fluid pressure of the "spring applied" system to allow the spring incorporated therein to cause the brake to apply. The arrangement is described as applied to a tractor and trailer in which three alternative modes of operation are possible, i.e. (1) normal service operation, under control of a service brake foot valve which supplies air under pressure to the trailer brakes, via a relay valve and service line, to the front chambers of dual chamber spring applied brake actuators via a variable load valve, and direct to the rear chambers of dual chamber lock actuators. The dual chamber lock actuators control the brakes on the front axle of the tractor and the dual chamber spring applied brake actuators control the brakes on its rear axle. Compressed air from a secondary reservoir is supplied to a two-way manual control valve assembly 1, e.g. of the type described in Specification 1,097,400. The output of the first valve of control valve assembly 1 is fed over line 8 to relay 5 to produce an output in dependence upon the output of the first control valve for operation of the brakes in manner (2), the output of relay 5 being fed to the trailer brake cylinders via an auxiliary line, and via line 9 to the rear chambers of the dual chamber lock-actuators, so as to control the brakes on the trailer and on the front axle of the tractor. The output of the second control valve of control valve assembly 1 is connected via line 10 and lines 11, 12 to the locking means of the dual chamber lock-actuators and also via relay valve 7 and quick-release valve 14 to the spring chambers of the dual-chamber spring- applied brake actuators, for operation of the brakes in manner (3), i.e. application on both front and rear axles of the tractor. In order to prevent an excessive pressure being "locked-in" by the locking means of the dual-chamber lockactuators, the equipment further includes a valve 17 of the type described in Specification 1,097,398.
Patent GB-620342-A (GB)
Title: Improvements in machines for producing gears
IPC: B23F5/12
Filed: 1947-01-09
Abstract: 620,342. Gear-cutting. GLEASON WORKS. Jan. 9, 1947, No. 760. Convention date, Aug. 2, 1941, [Class 83 (iii)] A gear-cutting machine of the reciprocating- tool type is provided with means for moving the tool support on its slide during the cutting stroke to, vary the depth of engagement of the tool with the work so as to produce teeth having a localized contact surface. Two tool sliders reciprocate simultaneously in opposite directions on tool arms mounted for angular adjustment on the face of the machine cradle. A tool-box 18, Fig. 2, is mounted on each slide and has pivotally connected with it a clapper block 19, Fig. 5, which carries the tool T. A shaft 25 journalled in the tool-box is formed with an eccentric portion 28 carrying rollers in contact at points 180 degrees apart with the clapper block, which is also connected to the tool-box by a shaft 24, Fig. 4, having eccentric portions 38 and 39. The shaft 25 is connected with a gear train 76, 75, 70, the last gear of which meshes with a rack 64 secured to the tool arm so that, as the tool-slide reciprocates, the shaft 25 will turn and displace the clapper block to vary the cutting depth of the tool. To ensure that the clapper block will be in its position of maximum displacement at the required point of the cutting stroke, a collar 97 having a hole 96 in alignment with the highest point on the eccentric is secured to the shaft 25. This collar is engaged by a spring-loaded pin 95 to hold the shaft stationary while the tool is moved to the position at which maximum curvature is desired, the gear 75 being temporarily removed from the end of the shaft. The shaft 24 rotates only at the ends of the stroke and hence acts as a pivot for the clapper block. A projection 57, Fig. 6, on the toolbox carries a lever 50 pivoted on a bolt 55 and having pins 49, 51 which engage a rod 45 and a friction-box 53, respectively. The latter comprises two plates 60 and 61 whose opposed faces are lined with friction material to engage the rack 64. The rod 45 carries a rack 44 meshing with a toothed segment 42 secured to the shaft 24. Relative movement occurs between the friction-box and the tool slide when the latter changes direction, thus displacing the lever 50 and the rack 44 to rotate the shaft 24 and its eccentric to displace the clapper block 19 and cause the tool to be withdrawn from or restored to the cutting position. The resistance of the friction-box may be adjusted by means of a screw bearing through a helical spring (not shown) on the friction plate 60. Specification 279,405, [Class 83 (iii)], is referred to.
Patent HK-34492-A (HK)
Title: Rotational velocity control with pulse width modulation
Inventor: LOPEZ DE ROMANA EDUARDO AUGUST
IPC: G11B19/28
Filed: 1992-05-14
Abstract: A pulse width modulation system for controlling the spindle motor speed provides a three-stage shift register whose output is pulse width modulated by the difference in time relationship between two pulse train inputs, one pulse train representing a reference standard and the other representing the tachometer output. A detector indicates when the states of the first and third stages of the shift register are the same which signifies an improper relationship between the tachometer pulses and reference pulses.