baber/WOPTO huggingface dataset:
Patent GB-351076-A (GB)
Title: Improvements in reamers or underreamers
IPC: E21B10/34
Filed: 1930-01-25
Abstract: 351,076. Bore-hole apparatus. GRANT, J., 2301, East Vernon Avenue, Los Angeles, U.S.A. Jan. 25, 1930, No. 2684. [Class 85.] In an under-reamer for borehole or well work wherein a mandrel is arranged within a hollow slotted body with cutter carriers arranged in the slots so as to be movable radially by relative movement between the mandrel and the carriers, a sleeve closes the upper ends of the slots when the cutters are at the lower end thereof. As shown, a hollow body 10 is threaded below to a bit 15 and above to an internal mandrel 20 which is extended upwardly for connection to the drill stem ; connected to, or integral with, the mandrel is an extension 21 loosely centred at its lower end by a collar 30. A spring 31 surrounds the extension 21 and acts through a propeller 32 to press upwardly cutter carriers 50 slidably arranged in slots 33 of the body; during upward movement of the cutter carriers, parts 55, 70 of the latter co-operate with tapered parts 43, 41 of the mandrel to expand the carriers into the tilted position shown in Fig. 2. Lateral wings 60 prevent the carriers moving out of the slots and at the lower end the wings may be such as always to remain in contact with adjacent wings and, if desired, with the mandrel, while when the tool is collapsed, the wings may contact throughout their length. The cutter carriers may be provided with integral cutters or they may support roller cutters 51 mounted on spindles 52 held below by pins 76 engaging grooves 75 and provided above with eccentric heads 77 to prevent rotation. The roller cutters may be wholly or partly conical and may have smooth end parts 80, Fig. 15, engaging bearing faces in the carriers. Wear on the upper ends of the carriers may be obviated by means of washers or by U-shaped clips 90 of hard or soft material which co-operate with the lower end of the well casing when the cutters are to be collapsed. The propeller 32 and an upper sleeve 100 prevent admission of mud &c. to the upper part of the body 10. In a modification, the sleeve 100 is replaced by a sleeve outside the body 10 ; such sleeve may be of rubber or of thin metal adapted to be torn or crumpled by upward movement of the cutter carriers. The roller cutters may be mounted eccentrically in the carriers, the latter then having on one side a web 120 to take circumferential strains ; or such a web may be provided on each side. Silt &c. may be removed from the lower part of the body 10 by flushing fluid escaping from the lower end of the mandrel extension 21 and out through ports 35 in the body ; the extension 21 may have apertures 36 to increase the flow of fluid. Specification 259,618, [Class 85, Mining &c.], is referred to.
Patent GB-999267-A (GB)
Title: Improvements in and relating to threshing machines
IPC: A01D41/12
Filed: 1962-07-19
Abstract: 999,267. Combine-harvesters. MASCHINENFABRIK FAHR A.G. July 19, 1962 [July 21, 1961], No. 27756/62. Heading A1F. The grain-bin 3 of a threshing machine or combine-harvester 1, is constructed so as to be convertible into a sack-filling station, and is provided with a false floor composed of pivoted slats 5 which can be closed to form a platform for sacks and a hinged wall 9 which can be let down to serve as a sack-shoot. When the bin is in use the slats 5 are vertical so that grain can fall through to an auger 11 feeding the delivery conveyer 12. As shown, the slats are operated in unison, by an external handle 8 and linkwork 7, but they may be power-operated by mechanical or hydraulic means. In a modification (Fig. 3, not shown) the linkwork 7 is coupled to the hinged wall so that the slats are closed as the wall is lowered. The extent of lowering is controllable by an adjustable chain 10.
Patent GB-890323-A (GB)
Title: Improvements in or relating to electronic data processing apparatus
IPC: G06F9/308
Filed: 1960-01-26
Abstract: 890,323. Digital electric calculating apparatus. BURROUGHS CORPORATION. Jan. 26, 1960 [Jan. 26, 1959], No. 2773/60. Drawings to Specification. Class 106 (1). Particular digits of an instruction word designate the portion of the operand to be selected for manipulation by the computor in executing the instruction. The computer is that described in Specification 889,290 and has the same sequence control circuits. An instruction word comprises eleven decimal digits each coded in binary digits having weights 1, 2, 4, 8 and stored in a set of four flip-flops called a decade. From the left, the first digit is a sign digit, then come four variant digits used when the operation is to be modified, then two digits specifying the operation and finally four digits specifying the address of the operand. Of the variant digits the three left-hand digits V 1  to V 3  are used for selection of a field within the operand: V 3 , if odd, determines that field selection is to take place; V 2  specifies the length of the field and V 1  the first digit of the field. The operand is set up in a shift register and is shifted least significant digit first through and back into the register by pulses from a digit counter. These pulses, if V 3  is odd, are also applied to the V 1  decade of the instruction word register which functions as a cascade decimal counter and is stepped from the value it holds through 9 to zero. On reaching zero an information gate is opened and succeeding digits of the operand may be transferred as required by the operation. The shift pulses are then also applied to the V 2  decade which is counted down to zero. On reaching zero the information gate is closed and field selection has been accomplished. Specification 750,475 also is referred to.
Patent GB-543019-A (GB)
Title: Improvements in or relating to the manufacture of rubber articles
IPC: B29C37/00
Filed: 1941-03-01
Abstract: 543,019. Rubber articles. McKAY, R. F. (Soc. Italiana Pirelli). March 1, 1941. No. 2786. [Class 70] Rubber articles are made with wrinkled surfaces by coating a former with an aqueous rubber dispersion by dipping, spraying, electrophoresis &c. coagulating, and drying the layer under conditions such that no vulcanization occurs, and contacting the dried layer with a rubber solvent, e.g. toluene, petroleum naphtha, carbon tetrachloride, or trichlorethylene. The rubber article may then be vulcanized before or after removal from its former. In an example, a surgical glove is made from a latex mix including zinc oxide, sulphur, and sodium diethyldithiocarbamate, which is deposited on a former, dried, dipped 3 to 10 mins. in trichlorethylene which is evaporated at 60‹ C., and the rubber steamvulcanized at 120‹ C. Specifications 284,608, 292,964, 330,520 and 335,621, [all in Class 70], are referred to.
Patent GB-105062-A (GB)
Title: Improvements in and relating to Fluid Meters.
IPC: G01F1/69
Filed: 1917-02-26
Abstract: 105,062. Cutler-Hammer Manufacturing Co., (Assignees of Wilson, J. C.). March 23, 1916. [Convention date]. Anemometers; thermometers.-In meters for measuring the flow of fluids by means comprising an electric heating-element 17, Fig. 1, and electricresistance thermometer elements 37, the elements are supported by flanged tubes 2, 3, 4, the flanges abutting against each other and being supported by insulating-blocks fixed inside a housing 1, so that the heater and thermometer units may be removed independently through a door 6. The housing is also provided with flanged tubes 9, 10, and the resistance wires of the heater and thermometer units are connected to a switchboard in an external junction box 7. In a modification, an horizontal housing is divided into upper and lower chambers by a partition, and the units are supported in an aperture in the partition. The heater unit comprises a wooden or other insulating-tube with metal flanges 18, Fig. 7, and a resistance wire 17 supported by cross-bars 21 and hooks 19 embedded in insulating-material 20. The wire is connected in any desired fashion to conducting- rods 23 carried by non-conducting rods 22, flexible leads 24 being connected to a gas-tight terminal comprising a base 26. Fig. 9, metal and porcelain bushes 28, 29 respectively, conducting-pins 31 carrying nuts 32, and leads 33, lead washers being disposed between the parts. A thermometer unit comprises a flanged tube within which is mounted a ring 40, Fig. 11, with a diametrical bar 42, on which is supported a tube 32 enclosing the resistance wire, which consists of strands in series, and liquid or solid insulating-material. The terminal is provided with a chamber formed by a bush 43 and a disk 44 of insulating-material, into which the insulating-liquid overflows on rise of temperature.
Patent GB-251348-A (GB)
Title: A cabinet, receptacle or support for containing, storing and/or transporting articles such as the disc records of sound reproducing instruments
IPC: G11B33/04
Filed: 1925-01-31
Abstract: 251,348. Mills, Sir W. Jan. 31, 1925. Cabinets.-In a portable rack for gramophone record discs, or like articles, wherein a series of vertical partitions and spacers f are mounted on rods c, the discs are cradled between two of the rods and are retained by covers i pivoting about the base of the rack, or by stirrups k, j pivoted to the end plates e. In a modification, shown in Fig. 4, the partitions do not extend the full depth of the rack.
Patent GB-1293263-A (GB)
Title: Pneumatically actuated pressure bandage
Inventor: SARNOFF STANLEY JAY
IPC: A61B17/135
Filed: 1970-01-21
Abstract: 1293263 Pressure applying bandages; apparatus for measuring blood pressure S J SARNOFF 21 Jan 1970 [11 Aug 1969] 2989/ 70 Addition to 1206605 Headings ASR and ASK The elongate flexible support of Specification 1,206,605 is fitted with a bar 40 at one end extending transversely of the support and generally coextensive with the width thereof to facilitate fixing the bandage with one hand only, (Figs. 2-3, not shown), which bar has a slot 44 extending along most of its length, which slot is formed with an open portion 46. A locking clip 48 is pivotally mounted at 50 and adapted to fit over the portion 52 of the bar 40. The extension band 54 of the flexible support may be inserted into the slot 44, turned back on itself and removably adhered to the flexible support by means of cooperating interengaging fasteners. At least one elongate leaf spring (38), Fig. 5 (not shown) is fitted longitudinally into the support to cause it to assume a partial, generally cylindrical shape. The pressure relief valve of the main specification is of a modified construction and may be held in a closed position by the screwing down of a valve cap (130), Fig. 8 (not shown). The extension band 54 is formed as one piece 56 and folded into two ply form as shown, its folded length being extendable up to the length of the single strip 56 and the band 54 being maintained in a folded configuration by pressure actuated fastenings 60. The bandage assembly may be used as a sling, Fig. 4 (not shown), wherein the band 54 is generally fully extended and then removably secured to the support 22 as described above.
Patent GB-1122351-A (GB)
Title: Improvements in or relating to clutches
IPC: F16D27/112
Filed: 1966-01-25
Abstract: 1,122,351. Friction clutches. CANADIAN PATENTS & DEVELOPMENT Ltd. 25 Jan., 1966 [25 Jan., 1965], No. 3215/66. Heading F2C. A friction clutch comprises an input disc 17 of soft iron having glued thereto a permanently magnetizable Alnico disc 20 adapted to frictionally engage a soft iron output disc 18 when the disc 20 is magnetized by a current pulse in a stationary winding 22 in a soft iron housing 21, and to release the disc when it receives a demagnetizing current pulse. The clutched discs 20, 18 are held together by the permanent magnetism of the magnetized disc 20 until a current pulse of opposite direction is applied to the winding 22. The soft iron housing 21 is in two parts 10, 11 bolted together to form bearings for the discs 18, 19. The magnetizable disc 20 may be replaced by a stationary annular member (32) or (33), Figs. 4, 5 (not shown), which maintain a toroidal magnetic flux path through the periphery of discs 18, 20, 19 and housing parts 10, 11. To reduce eddy current losses the discs 18, 19 may have a radial slit and the soft iron parts 10, 11 could be laminated or made of soft or permanent ferrite such as Magnadur. A sprung pad (37), Fig. 6 (not shown), in disc 18 may be used to aid disengagement of the friction surfaces.
Patent GB-235137-A (GB)
Title: Improvements in or relating to tire flaps
IPC: B60B21/12
Filed: 1925-02-05
Abstract: 235,137. Dixon, D. R. June 6, 1924, [Convention date]. Protecting-devices at rim. - A vee-section rubber band 14 is formed with taper edges rendered inextensible by fabric facings 18, the curved centre-portion 16 being fitted with an apertured block 19 to receive, and form a tight joint around, the valve-stem 13.
Patent GB-485999-A (GB)
Title: Improvements in or relating to electrical systems for forming accurately timed signal pulses
IPC: H04N5/073
Filed: 1936-11-23
Abstract: 485,999. Valve circuits. PHILCO RADIO & TELEVISION CORPORATION. Nov. 23, 1936, No. 3276/38. Convention date, Nov. 23, 1935. Divided out of 485,924. [Class 40 (v)] To form equally timed impulses from impulses which may be relatively misplaced, the input pulses initiate the cycles of a sawtooth signal which initiates an output pulse when its instantaneous amplitude passes a predetermined level, Fig. 1 (not shown). The saw-tooth signal is formed across a condenser 54 by charging it relatively slowly through a resistance 53, and discharging it relatively rapidly by a blocking oscillator 51, which is synchronized by the input signal The discharge is limited by a resistance 53a which is connected in series in the plate circuit of the oscillator between the condenser and the transformer 52. The change of voltage across the condenser is sufficiently small to be uniform with respect to time. The saw-tooth signal synchronizes a blocking oscillator 57, which produces the output signal. A further blocking oscillator 61 transmits only alternate pulses to form a synchronizing signal for interlaced scanning in television, Fig. 3 (not shown). Specification 485,924 is referred to.
Patent GB-1178991-A (GB)
Title: Security alarm system
IPC: G08B19/00
Filed: 1967-01-23
Abstract: 1,178,991. Alarm Signalling. GENERAL ALARM CORP. 23 Jan., 1967 [24 Jan., 1966], No. 3319/67. Headings G4H and G4N. [Also in Division E2] An alarm system for a block of flats signals any attempt at tampering with a flat door, or a fire, to a central monitoring point. Each door lock is provided with a first pressure-responsive, switch 280 which is actuated by attempt at forcing the door, and a second switch 286 which is operated when the key is turned in the lock. The circuit of the latter switch is provided with a further switch 290 to allow authorized opening of the door. A manually operated alarm button 274 is also provided. Actuation of any one of these switches energizes latching relay 266 to cause a lamp 258 to flash, identifying the source of the alarm, and to actuate a common audible alarm 233. The audible alarm may be cancelled by operating button 252 to energize relay 254. Actuation of a smoke or fire detector 206, 207 again energizes relay 266 and contact 270 feeds a signal to the fire indicator 234. The fire detector may be a thermostatic switch and the smoke detector a photo-electric element. In a sampler circuit. Fig. 2 (not shown), for detecting only intruders, the relay 266 is omitted, and the relay (80) connected to the audible alarm is provided with a latching contact. The pressure-sensitive switch is actuated by a pivoted arm mounted inside an opening in the striker plate, Figs. 5-9 (not shown), adjustment being provided to accommodate bolts of different width, and also to allow the switch actuation pressure to be carried.
Patent GB-366716-A (GB)
Title: Improvements in surface condensers
IPC: F28B9/04
Filed: 1931-02-03
Abstract: 366,716. Headers for heat exchangers. TRIGGS, W. W., 57, Lincoln's Inn Fields, London.-(Ingersoll-Rand Co. ; 15, Exchange Place, Jersey City, New Jersey, U.S.A.), Feb. 3, 1931, No. 3479. [Class 64 (iii).] Corrosion caused by the accumulation of froth in the upper tubes of horizontal steam condensers is prevented by the provision of baffles in the inlet water box or heater so that the velocity of the water through the box is not greatly different from the velocity at the inlet, whereby the separation of air bubbles is avoided. In a single-inlet water box, the baffles may be of the shape P, Q, Fig. 3; with a double inlet, they are arranged as at H, J. Fig. 2. Preferably the baffles do not extend quite to the tube plate.
Patent GB-265637-A (GB)
Title: Improvements in and relating to locks
IPC: E05B23/00
Filed: 1927-02-08
Abstract: 265,637. Zsigmond, I. Feb. 8, 1926, [Convention date]. Void [Published under Sect. 91 of the Acts]. Lock - mechanism, spring - tumbler type; operated by non-rotating key. - The bolt A of a lock is split at its rear end to form a number of unaligned springy strips b which have to be aligned by the key C to permit their ends to pass into the holes b<1> of the fixed plate B before the bolt can be withdrawn.
Patent GB-114021-A (GB)
Title: Improvements in and relating to the Brush and Terminal Contact Mechanismm of Dynamo Electric Machines.
IPC: H02K23/66
Filed: 1917-03-13
Abstract: 114,021. Stone & Co., J., and Darker, A. H. March 13, 1917. Dynamos, regulating.-In railwaylighting generators in which the generator brushes are carried on a ring, which rocks on reversal of the direction of rotation of the generator to maintain the polarity of the external circuit constant, the connexion from the brushes to the generator terminals is made through arms carried by the ring and extending inwardly to the axis of the generator, the arms being in constant engagement wth the terminals placed at or near the axis. In a four-pole machine, the ring d carries the brushes by brackets k. Opposite brushes b<1>, b<3> and b<2>, b<4> are connected by conductors l, u and two arms m, m<1> are used to complete the connexions to terminals r, r<1> on a plate s through spring clips o, o<1> on the ends of terminal plates q, q<1>. The ends of the arms arc disk-shaped and the terminal plate q is bent to allow free movement of the arm m<1> when the ring rocks. This movement may be effected either by the friction between the brushes and the commutator or bv electro-magnetic or mechanical clutches. In a two-pole machine, the arms are mounted one above another on one side of the axis and carried side by side to the spring clips and the end of the dynamo shaft. A conductor similarly disposed to the above described conductor l is used to connect one of the brushes to its arm. If a subsidiary brush or brushes be used, similar connexions are made to fixed terminals; the subsidiary brush may rock through a different angle from that moved through by the main brushes.
Patent GB-113848-A (GB)
Title: Improvements in Calks or Studs for Horse Shoes.
Inventor: TINDALL ARTHUR SUTCLIFFE
IPC: A01L7/04
Filed: 1917-03-14
Abstract: 113,848. Tindall, A. S. March 14, 1917. Renewable calks.-Reversible calks are so formed as to be capable of being driven into position or removed in a direction at right-angles to the face of the shoe. The calk shown in Fig. 4 is formed with two parts c<1>, c<2>, the part c<1> serving as a wearing-part when the part c<2> is driven into the shoe, and vice versa. The parts are preferably slightly tapered and are driven into rectangular openings in the shoe. Flanges c' are provided for engaging the face of the shoe, Both the parts may be of cruciform section and be formed with sharp ends, or as shown in Fig. 5, one of the parts may consist of a plain block d. The calk shown in Fig. 7 consists of a block d formed with parts c<1>, c<2> either of which may be driven into the shoe. The block may be formed with a plane wearing-face d<3> and one or more sharp edges d<1>. In removing the calks, the point of a tool is placed in a groove x. Fig. 13 shows a cover h which can be driven over the parts c<1>, c<2>, or d, Figs. 4 and 5, and is formed with a plane end h<1> and edges h<2>. The cover can be attached, in the position shown or be reversed if it is desired to use the end h<1> as a wearing-surface. The calk shown in Fig. 14 is formed with four wings k<1> - - k<4>, any of which can be driven into an opening b<2> in the shoe a.
Patent GB-589571-A (GB)
Title: Improvements in and relating to circuits for electric discharge lamps
IPC: H05B41/04
Filed: 1945-02-14
Abstract: 589,571. Supply systems for discharge lamps. GENERAL ELECTRIC CO., Ltd., and CATES, J. Feb. 14, 1945, No. 3694. [Class 38 (iv)] To operate two discharge lamps in series, one filamentary electrode of each is connected in a circuit including a stabilizing impedance 23 and a starting switch 19 which is opened to enable the discharge to start, and a transformer supplies heating current to the other electrodes in series. Other lamps may be included by supplying the intermediate electrodes in series connected pairs from additional secondary windings of the transformer. The stabilizing impedance 23 may constitute the primary winding of the transformer, but the intermediate electrodes in the series of lamps may be fed from an additional impedance 25 in circuit with the starting switch, this arrangement increases the starting current in relation to operating current. Where, as shown, the impedance 23 is not a transformer, a condenser 22 may be added, this having about double the impedance of the winding 23.
Patent GB-852232-A (GB)
Title: Transistor voltage transfer switch
Inventor: HORTON WILLIAM FRANKLIN
IPC: H03K17/60
Filed: 1959-02-03
Abstract: 852,232. Transistor switching circuits. LEAR Inc. Feb. 3, 1959, No. 3715/59. Class 40(6). A voltage transfer switch for applying a voltage from an urput to a load comprises a semiconductor circuit associated with a delay network so that the voltage is applied to the load either immediately on closing the switch and is slowly reduced when the switch is opened subsequently or alternatively the voltage is applied after closure of the switch to the load only after a delay and is removed immediately on opening the switch. Fig. 1 shows an inter-stage coupling circuit in which an input signal applied between terminals 10, 12 is connected via a back-to-back switch comprising NPN transistors 20, 22 to a load 18. When switch 42 is closed capacitor 38 is charged with a time constant depending on network 44, 38 so that after a delay transistors 20, 22 conduct current between their collector and emitter paths and the input signal across terminal 10, 12 is applied to load 18. When switch 42 is opened capacitor 38 discharges rapidly via rectifier 50 and the low value resistor 48 so that the transistors stop conducting almost immediately the switch is opened. In the modification shown in Fig. 2 a single transistor is employed of the type which presents the same impedance to current flow in opposite directions. Diode 50 is reverse connected so that capacitor 38 is rapidly charged and only slowly discharged so that the input voltage is applied immediately to load 18 when switch 42 is closed but when switch 42 is opened the voltage decays slowly across load 18.