baber/WOPTO huggingface dataset:
Patent GB-1500998-A (GB)
Title: Digital recording systems
IPC: G11B20/14
Filed: 1975-05-07
Abstract: 1500998 Digital data recording RCA CORPORATION 7 May 1975 [3 July 1974] 19163/75 Heading G4C Each bit cell in digital data recording uses two oppositely-directed transitions to start the cell and either a single transition or no transition (according to the bit value) within the cell. Recording (Figs. 2, 3, not shown).-A 3-bit binary counter is driven by clock pulses (8 per bit cell), counts of 0, 1, 4 being recognized by gates to reverse the state of a recording flip-flop at the counts 0, 1 and (if the data bit is 1) 4, to produce the transitions mentioned on magnetic tape. The count of 4 also calls for the next data bit. Read-out.-A waveshaping circuit (Fig. 4, not shown) produces a pulse for each transition, on one of two lines depending on the direction. A pulse classification circuit (Fig. 6, not shown) responds to these pulses to produce a pulse at P in the case of two pulses occurring within a quarter bit cell duration of each other, at Q in the case of two pulses occurring between a quarter and three-quarters of a bit cell duration of each other, at S for each pulse, and at E (error) for two successive pulses of the same type, retriggerable monostables being used in the case of P and Q and comparison (at gates) of the input with the previous input stored in a flip-flop being used in the case of E. A data decode circuit (Fig. 7) has an error flip-flop 76 set by E, and counters 77, 78 driven by Q and S respectively, P resetting 76, 77, 78. In the absence of error, S counter 78 receives a count of 1 or 2, according to the bit value, and the inverse value of the lower bit stage of this counter is inverted by XOR 710 and gated by P into a flip-flop 75 as the bit value, then supplied via AND 73 and OR 74, a "bit valid" signal being provided by a flip-flop 71. If the data transition is lost, setting of E flip-flop 76 causes XOR 710 to pass the signal from S counter 78 without inversion, thus correcting the error. If one of the transitions associated with cell beginning is lost, correction is performed with the aid of the preceding cell. The first bit is stored in a flip-flop 79 in response to AND 711 recognizing E flip-flop 76 set and a count of 2 at S counter 78, the bit value being 1 or 0 according as Q counter 77 is non-zero or not. The second bit is stored in flip-flop 75 from S counter 78 with or without inversion at XOR 710 according to the value of the first bit stored in flip-flop 79. Flip-flops 79, 75 are gated out (via OR 74) in turn. Speed errors (Fig. 8, not shown).-Logic responds to the P signal, flip-flop 76 and counters 77, 78 (Fig. 7) to indicate that the tape is running too fast if P occurs when 77 and 78 are both holding zero counts, and too slow if counter 78 holds 3 while E flip-flop 76 is reset. The two speed error signals are combined in an OR gate, also. The speed error signals can be used to stop the machine and indicate error, or to control the motor speed.
Patent GB-275217-A (GB)
Title: Improvements relating to counting devices for meters
IPC: G06M1/24
Filed: 1927-07-19
Abstract: 275,217. Etablissements E. Jaeger. July 30, 1926, [Convention date]. Numeral-bearing elements.-In counting devices for meters each numeral drum is constituted by the assemblage of two pressed cheeks forming the side members of a pulley and a metal band forming a cylindrical rim and secured to said cheeks. Each cheek is shaped as a flat bowl with a central projecting portion for frictionally engaging the corresponding portion of the cheek of the adjacent drum. As shown in Figs. 1 and 2, the cheeks 1, 2, are formed with a flat bottom portion 3, conical walls 4, 5, and a projecting portion 6 with an engaging surface 7. The edge of one cheek is cut to form a ratchet wheel with ten teeth 8 and that of the other to form a single transfer tooth 9. The cheeks are assembled by placing the bottom surfaces together so that tubular bosses 15 pass through corresponding holes 14, the bosses being bent over, Fig. 3, to secure the parts together. The walls 4 have apertures 12, and slots 13 through which pass the ends of a metal band 16, Fig. 4, on which the numerals are marked. transfer mechanism.-The numeral drums are Iccsely mounted on a common spindle and a detent system constituted by a spring wire 17, Figs. 5 and 6, in the shape of a hairpin is provided, the wire being so arranged that the bent end lies in the path of the single tooth 9 of one drum and the ten toothed wheel 8 of the next higher drum. The wire passes through the flanges 19 of a plate 20, and underneath the plate to notches at'the rear thereof, being held by a bottom plate 24. The tooth 9 and teeth 8 are oppositely directed so that at transfer the tooth 9 lifts the detent 17 free of the engaged tooth 8 whereupon the lower wheel by means of friction transmits its movement to the next higher wheel until the latter is arrested bv the detent being freed from the tooth 9. The drums may be zeroized by rotation in a direction opposite to that of the arrow x, Fig. 5, being arrested in zero position by engagement of the teeth 9 with the detents 17.
Patent GB-862681-A (GB)
Title: Improvements relating to electric isolating switches for railway sections and for other purposes
Inventor: LITTLER JOSEPH
IPC: H01H31/16
Filed: 1956-06-21
Abstract: 862,681. Air-break switches. BRITISH INSULATED CALLENDER'S CABLES Ltd. June 20, 1957 [June 21, 1956], No. 19286/56. Class 38 (5). [Also in Group XXXVI] An isolating switch particularly for controlling sections of electrified railway has a blade 12 electrically connected, by contacts 24 to a pin 21 carrying a cable terminal 52. The blade 12 is fixed to a bar 13 and an insulating plate 14 mounted on the cap 15 of an insulator 3 which is rotatable relative to the pin 21 to operate the isolator. The pin 21 is supported in bearings 37, 50 in insulating plates 14 and 47 held apart by pillars 40 screwed into the cap 15. The pin 21 has two flats 56 which can be engaged by a spanner for removal of the terminals 52. The contact sets for engaging the blade 12 and two sides of the pin 21 are similar and each comprises three blocks 24, with silver inserts 30, mounted on the end of fingers 20 projecting from a strip 23 mounted on each side of a projection 18 of the bar 13 or of the support memher 61 on the fixed insulators 1 and 3. Each block 24 has a projection 26 engaging a spring finger 27 of a plate 28 spaced from the strip 23 by a plate 34 but secured by the same bolts 32 and nuts 33. The pin 21 is coated with silver and the blade 12 has silver inserts 60. In Figs. 3 and 4 (not shown) the contact sets on each side of the pin and blade consist of only one block 24 and spring finger 27 and the bushes 37, 50 are of insulating material with a single metal member replacing the parts 13, 14 and the plate 47 is also of metal.
Patent GB-329208-A (GB)
Title: Improvements in and relating to display stands
IPC: A47F5/13
Filed: 1929-06-24
Abstract: 329,208. Weston, E. B. June 24, 1929. Rack stands, foldable, comprise spaced legs 1, Fig. 1, an easel support 5, and pivotally mounted article holders. The legs 1 are pivoted at their upper ends to a member 3 to which bars 4 are detachably connected at 27. The easel support 5 is pivoted to the legs and bars at 6 and 7, and held in the operative position by frames 24, pivoted to the easel and detachably connected to the legs at 26. Each article holder comprises a frame 18 pivoted to a U-frame 12, which is pivoted to the legs 1 and bars 4, the frame 18 being provided with a strut 19 capable of connection to a crossbar 2. The frame 12 has a slotted extension 17 to which the hinge piece 31, Fig. 3, of a cover 29 may be clamped.
Patent GB-1310265-A (GB)
Title: Speech recognition system
IPC: G10L15/02
Filed: 1970-04-22
Abstract: 1310265 Speech recognition RCA CORPORATION 22 April 1970 [30 July 1969] 19354/70 Heading G4R In a speech recognition system, spectrum analysis is followed by slope identification and energy comparison of the spectrum, the slope identification being followed by slope comparison. The speech signal, after passage through a pre-amplifier/equalizer, feeds 15 fullwave rectifier and low-pass filter units (to remove unwanted phase information) directly (total energy signal) and via 14 bandpass filters (providing the frequency spectrum) respectively. The 15 outputs from the units are time-divisionmultiplexed through a log amplifier and demultiplexed into respective sample-and-hold circuits which feed a broad slope identification network and an energy comparison network. The broad slope identification network uses operational amplifiers to detect broad positive and negative slopes in respective parts of the frequency spectrum. Each operational amplifier produces an analogue output representing the difference of two sums of adjacent inputs, providing this difference is positive. The energy comparison network uses operational amplifiers in a similar way except that a thresholded bit output is produced from each amplifier. The outputs from the broad slope identification network feed a slope comparison network which has a similar construction to the energy comparison network. The summing and differencing are equivalent to multiplying and dividing because of the logging. The broad slope identification network, slope comparison network, and energy comparison network, feed recognition logic. The total energy signal mentioned can be used to detect work beginnings, endings and pauses.
Patent GB-319427-A (GB)
Title: Improvements in or relating to mechanism for transmitting motion from one reciprocating member to another, particularly applicable to the operation of valves
IPC: F16K31/44
Filed: 1928-07-04
Abstract: 319,427. Humphreys & Glasgow, Ltd., and Fryer, J. E. G. July 4, 1928. Locking-catches.-In a device for transmitting reciprocating motion, with a locking or non- return action at one or both ends of the stroke, applicable to gate-valve operating mechanisms such as described in Specification 276,754, driving and driven members 8, 1 are pivotally coupled by a transverse plate or pair of plates 10 carrying shoes or rollers 6, 7 which ride against a stationary guide 2 parallel to the paths of movement so that the reciprocatory members are constrained to move together until the leading shoe or roller rides over the end of the guide, the device then becoming locked against return movement due to forces acting upon the driven member. The guide ends may be formed with retaining stops 14, Fig. 4, or may be shaped so that the locking action is accompanied by slight further movement. The reciprocatory members may be arranged between a pair of plates 10, co-operating with a pair of single-surface guides 2, Figs. 4 and 5, or the shoes may engage opposite sides of the guide member, Fig. 3. In the arrangement shown in Fig. 5, the device operates, through an intermediate spring 1<a>, a gate valve counterbalanced by a weight 11, the parts being shown in the locked position.
Patent GB-320105-A (GB)
Title: Improvements in reinforcements for concrete and the like and reinforced constructions made therefrom
IPC: E04C2/06
Filed: 1928-07-05
Abstract: 320,105. Heymann, M. July 5, 1928. Building - slabs. - Concrete &c. slabs 3 reinforced by sheets of expanded metal or wire netting formed in dovetail grooves 1, 2, and formed with rectangular corners 4 and recesses 5 may be used in structures, the abutting reinforcement in the recesses of adjacent blocks being joined with binding wire clips and the recesses being filled in subsequently with concrete.
Patent GB-127196-A (GB)
Title: Improvements in or relating to Manipulators for Forgings or the like.
Inventor: WADE HAROLD
IPC: B21J13/10
Filed: 1918-11-27
Abstract: 127,196. Wade, H., (Alliance Machine Co.). Nov. 27, 1918. Forging.-A manipulator for forgings, adapted to combine the desirable features of the crane and floor types of manipulator, is constructed with a long arm which is universally mounted at its rear end, and its front part is flexibly suspended, the preferred form being constructed with a vertically adjustable pivot which permits of maintaining the work level during the treatment of a large ingot. As shown, the forging, which is treated in a press 6, is carried by pneumatically-operated grippers 8 on an arm 5 arranged in a frame such as a carriage 2, which is driven by a motor over a rail 4. The grippers can be rotated by a motor 7<a> to turn the forging. The arm 5 is formed with separated side channel members 14 in which is trunnioned a bearing- member 15, Fig. 2, thereby giving movement about an horizontal axis, the member 15 being pivoted between collars 16 on a vertical shaft 17, which permits of movement about a vertical axis. The collars 16 can be adjusted by power or hand operated screw mechanism when it is desired to adjust the rear end of the arm 5 to suit forgings of great thickness. The front end of the arm 5 is supported at each side from pulleys 19 by cords or cables passing over pulleys 27, 28 and attached to counterweights 26, which are raised from their supports 31 when the arm 5 falls below a certain level, and they then operate to restore the arm 5. Springs 30 are arranged between the pulleys 28 and the channel members 14 attached to the arm 5, and the cables 22 may be driven by a motor 20, which normally raises and lowers the arm 5 independently of the action of the weights 26. An additional support may be used comprising a chain 36 suspended from a carriage 40 on a bridge 41. To prevent the machine from being kicked backwardly, the vertical pivot 17a, Fig. 1<a> about which the arm 5 moves, may be mounted in a pivoted bracket 42, the movement of which about its pivot is controlled by springs 45, 46 on a bolt 44 secured to the frame.
Patent GB-147689-A (GB)
Title: Improved manufacture of copper sulphate
IPC: C01G3/10
Filed: 1920-07-08
Abstract: 147,689. Bea, R. E. Aug. 3, 1917, [Convention date]. Copper sulphate and copper, obtaining; electrodes; electrolytes, treating non-chemically; diaphragms.-Copper sulphate is obtained from commercial waste copper and dilute sulphuric acid in a vat containing a porous receptacle enclosing the cathode, the sulphate crystallizing in the vat itself. The copper waste may be placed in a perforated container b of wood, earthenware, or sheet lead. Leaden rods c pass into the waste to conr.ect it as anode. The porous pots d may be of asbestos porcelain, earthenware, or other material resisting the passage of copper ions. Leaden cathodes e are placed in the porous pots. All the anode containers and cathode pots of a number of vats may be carried by a single framework. During the process, the temperature rises, say to 35-40‹ C., and strong copper sulphate solution descends to the bottom of the vats. The salt may be crystallized out by external cooling of the bottom of the vats, and may be collected by trays of copper, brass, lead, &c. fitting the vats. Alternatively, metal receptacles with double walls for cooling liquid may be placed in the vats. According to the Specification as open to inspection under Sect. 91 (3) (a) the solution may be discharged continuously or at intervals by siphons and cooled separately. A little finely-divided copper collects in the porous pots and is oxidized, with or without heating, and used to neutralize any free acid in the copper sulphate. This subject-matter does not appear in the Specification as accepted.
Patent GB-715179-A (GB)
Title: Supporting rack and cooperating transfer device for use in the manufacture of split piston rings and the like
Inventor: BATES ALBERT HENRY
IPC: B65G47/22
Filed: 1952-08-05
Abstract: 715,179. Stacking. GABRIEL CO. Aug. 5, 1952. No. 19680/52. Class 94 (1) [Also in Groups XXII, XXIII and XXX] Piston ring blanks R, Fig 1, issuing from a machine which cuts and mills the gaps, pass down an I-section guide 22 with their gaps embracing the web 23 and are transferred manually to a temporary storage rack 25, Figs. 2 and 3, which comprises a central vertical portion 26 which maintains the gaps in alignment and a pair of inclined arms arranged to form a V and the upper ends of 27 of which engage the inner circumferences of the rings at spaced points. The rack may form an extension of the guide 22. A gauge plate 3,1 is secured to the end of the portion 26 and is fitted with side members 33 arranged to form steps 34-36, whereby as the rings are slid along the rack they are automatically formed into stacks of predetermined number ready for transfer to a lathe. Racks of similar construction, see Figs. 7 and 8 (not shown), are used during the later stages of the manufacture of the rings. A stack of rings may be removed from or placed on a rack by a tongs device, Figs. 11 and 12 (see also Group XXIII), the jaws 55 of which terminate in L-sectrion blades 59 adapted to enter the gaps of the rings and embrace the portion 26 in the manner shown.
Patent GB-141995-A (GB)
Title: Improvements in and connected with bib cocks and the like
IPC: F16K1/48
Filed: 1919-08-11
Abstract: 141,995. Scriven, W. Aug. 11, 1919. Lift valves; closure members.-Relates to a valve of the screw - down plunger lift type having a packed fluid-tight sliding fit within a cylindrical recess above the seating. The valve plunger l is secured to the spindle i by means of a head, socket, and screwed ferrule, as shown, so as to allow a small universal relative movement for self-adjustment, and in combination therewith, means, such as a conical projection m, are provided to secure the washer g and to centre the valve upon its seating. The valve cap j is screwed internally to take the screwed spindle i, and a stuffing-box is dispensed. with.
Patent GB-436983-A (GB)
Title: Improvements in electric lighting fittings
IPC: F21V17/00
Filed: 1934-07-04
Abstract: 436,983. Securing lampshades &c. to holders. GENERAL ELECTRIC CO., Ltd., and BURBIDGE, A. J., Magnet House, Kingsway, London. July 4, 1934, No. 19729. [Class 75 (ii)] A lampshade 7 or the like provided with a substantially central hole is supported from an electric lamp holder by means of a spider member 1 having one end attached to the lamp holder by a shade ring or the like bearing on the edge of a hole 3 in the spider member, the other end being formed with an outwardly turned flange 4 to which a separable ring member 5 is adapted to be rigidly fixed by screws 6, Fig. 3, or like means, whereby the edge of the hole in the shade is held between the flange and the ring member. The spider member may have two or more legs 2. In the form shown in Fig. 5, the ring member 5 is formed with screw threads whereby it may be screwed upwardly to engage co-operating screw threads on the spider member 1. In the form shown in Fig. 6, engagement is effected by means of lugs 8 pressed out of each of the legs 2 and correspondingly shaped slots 9 in the ring member 5. Specification 12667/98, [Class 75], is referred to.
Patent GB-1170572-A (GB)
Title: Improvements in or relating to Vehicle Suspension Systems
IPC: B60G17/015
Filed: 1968-04-25
Abstract: 1,170,572. Pneumatic suspension system. HOESCH A.G. 25 April, 1968 [3 June, 1967], No. 19743/68. Heading B7D. A pneumatic suspension system for a vehicle comprises high and low pressure gas containers 2, 3 separated and sealed from each other by a partition 5, and held together by a tie-rod 4, which has a bore 6 in the part extending through the low-pressure container, the bore containing a compressor piston 7 for pumping gas from the low-pressure to the high-pressure container, electromagnetic regulating valves 11, 12 being provided, one in each chamber, for adjusting the suspension height by regulating the flow of gas between the two chambers, and a suspension device associated with each wheel. Gas is drawn by the piston 7 into the bore 6 from the low-pressure container 3 via a non-return valve 9, is compressed, and passes into the highpressure container 2 via a non-return valve 10. The regulating valves 11, 12 are each connected to a duct 13 which leads to a spring device associated with one wheel, and are closed when no electric current is supplied. The valves may be actuated by a level-sensing device which supplies an electric pulse, through a phase shifting means, to the appropriate valve 11 or 12, through the wires 14 or 15. A pressuresensitive control 17 connected via a pipe 16 to the high-pressure container 2 controls the compressor or piston 7.
Patent GB-859508-A (GB)
Title: Stabilized acrylonitrile polymers
IPC: C08K5/5398
Filed: 1957-05-06
Abstract: A composition comprises a polymer containing at least 80% of acrylonitrile, a solvent therefor, and an inhibiting agent comprising paraformaldehyde and triethyl, tributyl, tris (2-ethylhexyl), trihexyl or triisooctyl phosphite.  Polymers and solvents which may be used are referred in Specification 859,506.
Patent GB-439522-A (GB)
Title: Process of and apparatus for printing on paper and fabrics
IPC: B41M1/00
Filed: 1934-07-05
Abstract: 439,522. Printing processes. WYSE, H. T., 1, Craigleith Grove, Blackhall, Edinburgh. July 5, 1934, No. 19770. [Class 100 (ii)] A paper or fabric web is printed by applying a film of ink to an endless band 1, removing a part of the ink by means of a relief roller 9, comb 10, or other mechanical means, and transferring the residue of the ink to the web 6. In addition, a spotted effect may be produced by dropping spots of colour on to the band.
Patent GB-895516-A (GB)
Title: Improved vibratory screening apparatus
IPC: B07B1/28
Filed: 1960-06-03
Abstract: 895,516. Screening apparatus. ALLISCHALMERS MANUFACTURING CO. June 3, 1960 [June 8, 1959], No. 19827/60. Class 117. A screen body 13 with screen decks 14, 15 is resiliently supported on a stationary structure 12, and is gyrated by a transverse driving shaft 30 mounted in inner bearings 31, 32 mounted in the side plates of the screen body, and in outer bearings 35, 36. The latter are offset from the axis of the inner bearings and are enclosed by housings 37, 38 resiliently connected both to the screen body and to the supporting structure. Each outer bearing housing has extension arms 39, 40, Fig. 2, connected at their ends to the screen body by resilient mountings 51, 52, and each housing is resiliently connected to the stationary structure by a pair of resilient mountings 53, 54. The latter thus constitute supporting mountings for the screen body which is driven by a motor 46, belt 43 and pulley 42. The drive shaft carries flywheels 33, 34 and the arrangement is such that the bearing extension arms are stationary when the screen body is gyrated and vibration of the building in which the apparatus is mounted is substantially eliminated. In a modification the screen body is suspended from an overhead structure by four resiliently mounted hangers attached to the outer bearing mountings, and the driving motor is supported by a transverse platform carried by those mountings.
Patent GB-404881-A (GB)
Title: Improvements in or relating to rolling mills
IPC: B24B5/36
Filed: 1933-07-13
Abstract: 404,881. Grinding-rollers. KRUPP GRUSONWERK AKT.-GES., F., Buckau, Magdeburg, Germany. July 13, 1933, No. 19875. Convention date, Aug. 3, 1932. [Class 60.] A pair of rolls are cleaned by abrasive blocks 4<1> which are carried and traversed across the rolls by motor driven screwed spindle 3. The blocks are pressed against the rolls or withdrawn from contact by a handwheel 15 operating bell crank levers 9<1> which rock the lever arm 5 carrying the block spindle 3 about the pivots 6 away from or nearer to the rolls. Each end of the spindle 3 has a reversing switch for the motor to reverse the traverse of the blocks. Chains 25 connect the motor drive to both blocks.