baber/WOPTO huggingface dataset:
Patent GB-301112-A (GB)
Title: Improvements in the manufacture of nitroglycerine and the like
Filed: 1927-08-26
Abstract: 301,112. Smith, F. E., Desborough, A. P. H., Thomson, W. T., Ledbury, W., and Blair, E. W. Aug. 26, 1927. Nitroglycerine, nitroglycols, and other nitro alcohols, which are liquid and polyhydric, e.g. ethylene glycol, glycerol, butenyl glycerol, and their ether derivatives, more particularly the methyl and butyl ethers, are obtained by a process wherein the heat of reaction is evolved and absorbed in two or more stages. For example, glycerine is nitrated by addition to pure nitric acid or to a mixture containing a small proportion of sulphuric acid. The product may then be separated by the addition of the correct proportion of sulphuric acid, with suitable agitation and cooling.
Patent GB-1284523-A (GB)
Title: Motor control system with double ir compensation
IPC: H02P7/292
Filed: 1970-05-08
Abstract: 1284523 Automatic speed control BORGWARNER CORP 8 May 1970 [30 June 1969] 22485/70 Heading G3R A reversible series motor 20 is shunted by a free-wheeling diode 50 and is energized through controlled rectifiers 25-27 having firing circuits 28-30 which are controlled by amplifier stage 32 comprising an operational amplifier. The latter receives a speed reference signal on line 61 and a signal related to the armature voltage on line 60. A first IR compensation signal on conductor 54 represents the average current flow through the motor armature, whereas a second IR compensation signal on line 70 is a function of the average current through the rectifiers 25-27. As the motor speed increases, the effect of the free-wheeling diode current decreases, and the second compensation signal offsets an increasing portion of the first compensation signal, thus improving the regulation of the system. A linear acceleration stage 62 translates a step function change of the setting of potentiometer 63 into a gradual transition of the speed reference signal on line 61. Diodes 64-66 protect against excessive signals on the line 54. In another arrangement, the second IR compensation signal is derived from a resistor in series with the free-wheeling diode 50, to provide a signal related to the current through the diode, Fig.3, (not shown).
Patent GB-317048-A (GB)
Title: Improvements relating to point operating mechanism for railways and the like
IPC: B61L5/00
Filed: 1929-07-23
Abstract: 317,048. Westinghouse Brake & Saxby Signal Co., Ltd., (Assignees of Compagnia Italiana dei Segnali). Aug. 9, 1928, [Convention date]. Locking-bolts and like devices; operating mechanism applicable generally.-Each pointtongue is connected to a rack engaged by a pinion frictionally coupled to its shaft. In the form shown, the closed tongue is locked in position and is only unlocked by a displacement of the open tongue, whether during normal operation or when trailed through. The tongues are connected to bars 1, 2 having rack teeth engaged by pinions 4, 5 loose on a shaft 6 and frictionally coupled to a lock 11. The lock has cams 13 and teeth 14 engaging corresponding recess 7, 10 and lock recesses 9, 8 in the bars 1, 2. The lock 11 also has a cam 12 engaging a lever 19 coupled to a commutator 20 in the points circuit. During normal operation, one rod will commence to move with the cam 13 and lock 11, but the other rod will not move until the lock has disengaged the tooth 14. Similarly when trailing through, the rod engaged by a cam 13 can move at once, but the other rod cannot move until the movement of cam 13 has freed tooth 14. In a modification, both rods and tongues are coupled to one connecting-rod, the teeth 14 being shearable.
Patent GB-152494-A (GB)
Title: Improvements in drilling machines
IPC: B23B39/20
Filed: 1919-09-16
Abstract: 152,494. Klay, A. Sept. 16, 1919. Drilling-machines of the turret type have a series of drill-carrying spindles so mounted on the turret that feed can take place at one station only, and the feed controls the turret index bolt and then successively engages a clutch part on the selected spindle with a corresponding part on the driving-spindle and renders friction driving-gearing operative. The turret carries indicating-tags for the drills and operates a speed - controlling device. The spindles are balanced by a spring, and a special belt drive is described. The turret is shown applied to a pillar type machine with a vertically adjustable table 4, Fig. 1. The drills are arranged in order according to diameter, and drills for steel and brass &c. may be arranged alternately. Each drill is carried by its own spindle 22 resting in a carrier 27 slidably mounted in the turret 6 and having a tail 20 resting on a guide rail 14 which is gapped in the position under the driving-spindle 43, the gap being closed by a finger 32 carried by a sliding frame bearing at 38 on a spring that provides for the return of the spindle when the driving spindle feed-wheel 54 is released. The carriers 20 are slotted to receive tags 30 that indicate the size of the drill by their markings and the type by their colour. The spindles are bored at 26 to receive a pilot 45 on the driving-spindle and are clutch-formed at 25 to engage a corresponding part 44. On feeding the driving-spindle, an arm 97 releases an arm 96 on a rock shaft and permits a weight 88 to release the index bolt 38 through linkage 90, 94 and through linkage 84, 83 and rock-shaft 81 and lever 82 raises the bearing 75 of a shaft 56 to carry a friction wheel 69 into contact with a disk 42 splined to the spindle and thus to raise the disk into contact with a friction wheel 68 on a shaft 55. The driven ends of the shafts 55, 56 are mounted in bearings swivelling at 58 and driven by a belt 60 arranged as shown in Fig. 7. The clutch 44, 25 is set to engage before the friction drive becomes operative, and the amount of power transmissible is regulable by adjusting the position of the weight 88. The friction wheels are adjustable along these shafts by a sliding-yoke 71 so operated by a pinion 79 on the turret that the spindle is always driven at a speed appropriate to the drill selected.
Patent GB-497448-A (GB)
Title: Improvements in parachutes
IPC: B64D17/00
Filed: 1937-08-20
Abstract: 497,448. Parachutes. EVANS, J. J., and QUILTER, J. R. C. Aug. 20, 1937, No. 22891. [Class 4] A parachute is provided with webs or gusset pieces of substantially triangular shape fitted to, or acting as, individual shroud lines and connected together at or adjacent to the axis of the parachute so as to occupy radial planes when the parachute is distended, the webs or gusset pieces extending up inside the domed top or canopy for a portion of the height of the dome leaving a free space above them for internal movements of the air. As applied to a pilot parachute, Fig. 1, a canopy a is connected to a grummet c by eight shroud lines b and is provided with spring opening means of the kind described in Specification 405,693. Each line b is enclosed up to edge d of the canopy in a seam along the outer edge g of a gusset piece h made of fabric such as used for the parachute itself. The inner edges i of the gusset pieces are connected by seaming and stitching. The gussets are made longer than the side edges g so that the upper edges of the gussets lie within the canopy and the upper corners are stitched to the canopy along reinforcing tapes l to which the shroud lines are also stitched. The outer edges g may represent the selvedge of the fabric and the inner edges i are cut on the bias and interconnected as shown in Fig. 4. Alternatively the inner edges may represent the selvedge. In a modified arrangement, Fig. 5, the gusset pieces may be made in pairs both outer edges being cut on the bias and the inner edges i being represented by a fold in the double width of material. The edges g of the gusset pieces may be reinforced by folding and stitching and the shroud lines dispensed with.
Patent GB-798469-A (GB)
Title: Improvements relating to syphonic-discharge water-closet basins
Inventor: PIMBLE ARTHUR VICTOR
IPC: E03D11/13
Filed: 1956-07-25
Abstract: 798,469. Sanitary closets. TWYFORDS, Ltd. May 6, 1957 [July 25, 1956], No. 22930/56. Class 26. In a syphonic-discharge water-closet basin 1 of the kind comprising a bowl 2 with a discharge passage 4 having two traps 5, 6 between which is a space 7, water enters the basin 1 through an inlet opening into a chamber 8, a hollow rim 9, and flushing outlets 10, 11 therefrom and an air chamber 12 is formed inside the body of the basin adjacent the chamber 8, communicating with the space 7 by the passage 13, the inlet being a pipe 18 passing through the chamber 12 and having apertures 26 whereby flow of water therethrough extracts air from the space 7 to promote syphonic action. Outlets 10 and 11 are for an initial flush and an afterflush respectively. The openings 15 and 16 are sealed by rings of rubber or like yieldable material carried by the pipe 18 and held in place by an attachment 24. Each aperture 26 is associated with a cowl 27. The rear end of the discharge passage 4 may be directed in one of two ways. The Provisional Specification describes also the provision of a venturi restriction rearwards of the cowls. In a modification thereof the inlet pipe or conduit comprises two integral and co-axial portions forming an annular interior pocket with slots on the outer wall for air-extraction through the pocket when water flows through the pipe.
Patent GB-1412794-A (GB)
IPC: B65D85/67
Filed: 1972-05-16
Abstract: 1412794 Packaging coil strip BRITISH IRON & STEEL RESEARCH ASSOCIATION 6 April 1973 [16 May 1972] 22948/72 Addition to 1275602 Heading B8C A packaged coil 10, of strip material is provided with protective material 12 wrapped around the circumference of the coil with an axially outwardly directed overhanging projection 13 of protective material around the outer circumferential edge at each end of the coil, protective material 14 provided in the eye 11 of the coil, a stiff annular member 15 of protective material adjacent each end of the coil within the overhanging projection of protected material and an annular flexible cushioning 16 at at least the radially outermost edge of the annular member 15 immediately adjacent to the overhanging projection of protective material 12. As shown, the material 12 is sheet strip, the material which is folded radially inwardly of the coil at each end thereof 14 and the member 15 are of steel sheet and the cushioning 16 is polyurethane foam. Waterproof paper 17 is interposed between the coil 10 and the material 12 and extends into the eye 11. Sheet eye trumpets 18 extend partially into the eye 11 and partially across the ends of the coil 10 and the various elements of the package are secured by steel bands 19. In another arrangement, Fig. 3 (not shown), a sealing compound (20) of bitumastic compound is applied around the outer and inner edges of the coil at each end thereof and beneath the member 15. In a further arrangement, Fig. 4 (not shown) the trumpets 18 are replaced by an annular member (22) coated with polyurethane foam (16) which covers each end of the coil and extends into the eye (11). Again, Fig. 5 (not shown), the projection (13) at each end of the coil is deformed radially inwardly over a cushioning ring of polyurethane (23) when the coil is banded by band (19), the polyurethane being applied from an aerosol to the periphery of the member (15). The package is produced on a machine, Fig. 6 (not shown), which comprises a paper wrapper station (31), conveyer (34), sheet wrapping station (32), a station (33) for applying members 15 and a banding station (37). The machine may be a modified version of that described in Specification 1,275,602. In order to permit drainage from the package, the material 12 is formed with perforations (40), Fig. 7 (not shown), formed at the apices of frusto-conical projections (42). The projections may be formed at the wrapping station (32) by cooperating rollers (44)-(46), Fig. 8 (not shown).
Patent GB-170149-A (GB)
Title: Rubber tube junctions
IPC: F16L41/02
Filed: 1920-08-04
Abstract: 170,149. Seel, J. Aug. 4, 1920. Junction pieces.-Three and four-way junction pieces 3 are made of rubber, cork plugs 2 being provided to close any branch not required.
Patent GB-715938-A (GB)
Title: Sliding door
IPC: B60J5/04
Filed: 1951-03-16
Abstract: 715,938. Doors for vehicles. MAY, C. H. March 16, 1951 [March 21, 1950], No. 22970/53. Divided out of 702,278. Class 103(2) A sliding door assembly for a vehicle comprises a door, a supporting track on which the door is slidable, and mechanism actuated by the door as it slides, for maintaining the door out of contact with the side of the vehicle. In the arrangement shown, the door 151, Fig. 1, is attached to a portion 152 of the floor which is adapted to slide on tracks 154. The door midway up its side is provided with a track 155 adapted to receive a roller carriage 157 provided with wheels 158. The roller carriage is attached to a flat flexible member 160, Fig. 3, made of material such as spring steel and provided with holes 162 for engagement with teeth 164 on a shaft 165. The shaft 165, which is connected to the frame of the car, is provided with teeth 167 engaging a worm gear 168 on a rod 169, The rod has a spool 171 around which is wrapped a flexible cable 173 connected at opposite ends to the opposite ends of door 151. As the door is opened the cable 173 is operated to cause the spool 171 and the worm gear 168 to rotate whereby the shaft 165 turns to cause the flexible member 160 to move outwardly from the vehicle. The door thereby is maintained out of contact with the side of the vehicle. The track 155 has inclined slots engaged by pins 176, Fig. 4. projecting upwardly from the door, and at its near end is attached to the door by a spring 178. At its forward end it is connected to a bell crank lever 179 having a latch 182 adapted to be engaged in a slot 184 in the frame of the vehicle. To open the door the latch is disengaged and the door is shut backwardly. When the door is being closed the latch 182 strikes the opening 184 on the vehicle frame and is raised the track 155 being then moved rearwardly. In view of the inclined slots for the pins 176, rearward movement of the track 155 causes the door to move slightly outwardly. When the latch 182 enters the opening 184 the track 155 moves forwardly causing final movement of the door to be in a direction at right angles to the normal direction of travel of the door.
Patent GB-817604-A (GB)
Title: Switching arrangement for releasing matrices alternately in adjacent channels in typographical composing machines
IPC: B41B11/14
Filed: 1956-07-26
Abstract: 817,604. Type-bar-making machines. INTERTYPE Ltd. July 25, 1956 [July 26, 1955], No. 22991/56. Class 100(3) Escapements. In a typographical linecasting machine including at least one pair of adjacent magazine channels containing similar matrices, an arrangement is provided for switching a keyrod common to the two channels alternately into engagement with the escapements for the two channels so as to release matrices alternately therefrom, comprising a guiding pawl or latch pivotally mounted on the keyrod co-operating with a stationary guiding member to positively steer the keyrod against the two escapements in turn. Fig. 2 shows a switching unit 10 for two pairs of such channels, the escapements of each pair actuated by a keyrod 14 having a peg 16 to which is pivoted a pawl 20. On upward movement of the rod 14, the pawl moves into a recess 24 or 26 and is there held vertical. On downward movement, the pawl is deflected by a surface 28 or 30, so as to move the keyrod laterally to its other position. Fig. 4 shows a unit for one pair of channels. In the keyrod guide 34, the tine 32 is omitted between the two escapements concerned. The pin 16, Fig. 7, may be secured to the rod 14 on a bracket 36 fastened by a screw 40 and engaging in a recess 42 on the rod 14, the recess 42 being wide enough to allow some vertical adjustment.
Patent GB-158019-A (GB)
Title: Improvements in or relating to machines for cleaning and sharpening knives
IPC: A47L21/02
Filed: 1920-06-18
Abstract: 158,019. Mathews, C. L. June 18, 1920. No Patent granted (Scaling fee not paid). Cutting.edges, treating; wheels.- A knifecleaning and sharpening machine comprises main cleaning - rollers b<1>, b<2>, one or each of which consists of a shell resiliently supported on its driving- shaft by one or more coiled springs b<5> attached to the shell and to the axle. The rollers are mounted in a casing a, and are rotated at the same or at different speeds bv a handle and toothed gearing. Flat plate bearings e', e<2>, or roller bearings, are pressed by springs against the rollers b<1>, b<2>. Small rollers b<3>, b<4>, driven from the gearing referred to, serve for cleaning under the bladeshoulders. A V-shaped sharpener g may be provided; or a third pair of rotary elements consisting of conical members arranged to form a V-groove may serve for grinding a cutting-edge. The rollers b', b<2> may be slightly conical, and may have diagonal or helical grooves receiving strips or polishing-material; they may rotate in the same or in opposite directions. The casing a has openings a<1>, a<2> for the insertion of the knives.
Patent GB-615796-A (GB)
Title: Improvements in or relating to easy chairs, arm chairs or the like
IPC: A47C5/12
Filed: 1946-08-02
Abstract: 615,796. Seats ; furniture combinations. MORRIS, C. V. Aug. 2, 1946, No. 23169. [Classes 52 (ii) and 52 (iii)] An easy chair composed of parts formed by stamping or moulding metal, plastic &c., is provided with a seat frame A to which are secured side or arm rests C formed of plate material having out-turned flanges C<1>, D, E to form a hollow recess in which a book shelf, &c., F may be arranged. Also secured to the arm rests and to the seat A is a back plate G which is wider at G<1>. It is preferably arranged against runners on the arm rests C and the widened parts G<1> may enter slots C<2> formed in the arm rests.
Patent GB-423807-A (GB)
Title: Improvements in or relating to sound reproducing devices
IPC: H04R9/02
Filed: 1933-08-19
Abstract: 423,807. Loud-speakers. FERRANTI, Ltd., and TAYLOR, M. K., Hollinwood, Lancashire. Aug. 19, 1933, No. 23199. [Class 40 (iv)] [See also Groups XXII and XXXV] A moving-coil conical-diaphragm soundreproducing device, such as a loud-speaker, has the outer polepiece e joined to the ends of the permanent U-shaped magnet a by means of a substantial welded fillet of iron g constituted either by separate members welded in position or by iron built up in position during welding. If desired, the ends of the magnet may be secured to the polepiece at points somewhat removed from the extremities of the latter. The head of the screw c which secures the central pole b to the magnet may be suitably locked by introducing typemetal or solder t into the annular space m. Ingress of dust &c., into the air gap is prevented by a tube q surrounding the pole b, the tube being centred by a further tube r and maintained in position by a ring s.
Patent GB-406302-A (GB)
Title: Device for use in the manufacture of pile fabrics and the like
IPC: D04G3/02
Filed: 1932-08-20
Abstract: 406,302. Sewing - machines. FAIRWEATHER, W. C., 65, Chancery Lane, London.-(Singer Manufacturing Co. ; Elizabeth, New Jersey, U.S.A.) Aug. 20, 1932, Nos. 23386/32, 23387/32, 26568/32, 26569/32, 33517/32, 5656/33, and 19809 /33. [Class 112.] A device for use in the manufacture of orna - mental fabrics, wherein pile or fringing material is stitched to a backing, comprises a forked loopforming member having prongs 1, 2, Figs. 5, 13 and 24 of unequal widths separated by a stitch receiving gap 3 which is preferably of a width not exceeding that of the narrower prong, a pivoted, slidable, or detachable distance piece 5 being provided to space the prongs at their free ends. The wider prong 1 may be formed with a cutting edge or provided with a detachable cutting blade 16, Fig. 5, having a stud and keyhole connection therewith, to enable cut pile to be produced on withdrawal of the former after the stitching operation, the detachable blade being secured in position by a guard 10 that can be clipped to and sprung over the edge of the prong. Alternatively the cutting unit may be locked in position by screws or by a pivoted spacing member 5, Fig. 24 engaging a slot in the blade. The cutting unit in the latter construction may be readily detached by flexing the blade. The size of the loops produced on the former may be increased by detachably connecting thereto one or more extension bars 27, Fig. 13 which may be slotted to accommodate a cutting unit. In a further modification Fig. 42, a loop forming member having detachably connected prongs 98, 106 is provided with a distance piece 105 for spacing the free ends of the prongs in different positions of widthwise adjustment thereof and a cutting unit comprising shear-cutting knives 91, 92 which may be relatively adjustable. According to the second and fourth Provisional Specifications the pile or fringing material is produced by forming in the yarn a series of half hitches about a single limb former having a knife edge at one end.
Patent GB-234172-A (GB)
Abstract: 234,172. Andrews, J. Feb. 20, 1924. Water, distilling.-Brine is withdrawn from an evaporator and mixed with incoming water, a portion of the mixture being returned directly to the evaporator as feed-water and the remainder discharged overboard. In the arrangement shown a single pump 9 draws brine from the evaporator 1 through a valve 3 and water through a pipe 6 and valve 5, the two being mixed in a chamber 4 and passing to the pump 9 by a pipe 7. The mixture is delivered to a Y- piece 15 to which are attached a pipe 17 leading to the evaporator through a valve 2 and a discharge pipe 18. The amounts of water and brine sucked by the pump and returned to the evaporator are regulated by means of the valves 2, 3 and 5 in accordance with the indications of a thermometer 16 in the outlet of the pump 9. Specification 121,418 is referred to.
Patent GB-1391478-A (GB)
Title: Dictation-transcription method and system
IPC: G11B27/28
Filed: 1972-05-18
Abstract: 1391478 Dictation-transcription systems; utilizing indexing signals LANIER ELECTRONIC LABORATORY Inc 18 May 1972 [3 June 1971] 23458/72 Heading G5R In a dictation-transciption system, dictated matter DM which includes dictation instructions is recorded together with indexing signals TL, IS, ES subsequently used for making up an index member, the time line signal TL being coextensive with the dictated matter DM, the instruction signals IS being located at instructions, and the end signals ES being located at the ends of units of dictated material. The indexing signals are utilized in three modes of operation: (a) Indicating.-During rapid transport of a recording prior to transcription, e.g. during a fast re-wind, the index signals IS, ES are sensed to produce marks on a member such as a strip of heat-sensitive paper (252), Fig. 13 (not shown). (b) Instruction scanning.-To locate instructions, fast forward transport may be halted on detecting an instruction signal IS. (c) Forward re-set.-Following a re-wind, the record carrier may be re-set forwardly for further dictation by sensing the time line TL. The four signals DM, TL, IS, ES may, as shown, be on separate tracks; or IS, ES may be superimposed on TL, Fig. 4 (not shown); or ES may be superimposed on DM and IS on TL, Figs. 5, 6 (not shown). Superimposed signals have different frequencies to enable separation by filter networks on playback. The record carrier described is magnetic tape, but may be a belt or disc. The tape may be endto-end on spools (12, 14), Fig. 1 (not shown), possibly in a cassette, or endless and stored in bins (28, 29), Fig. 2 (not shown).