baber/WOPTO huggingface dataset:
Patent GB-1449577-A (GB)
Title: Valves having a stem seal
IPC: F16K1/226
Filed: 1974-09-16
Abstract: 1449577 Valves OARLOCK Inc 16 Sept 1974 [5 Nov 1973] 40314/74 Heading F2V The sealing around the stem of a plastica resin-encapsulated butterfly or ball valve closure member comprises a portion 20a of the encapsulation 22 surrounding the stem projecting through a hole in a lining 13a for the bore, a sealing ring 25a positioned between the portion and the lining having a flange 25b sandwiched between the lining and back-up means 17. Projections are provided on either the portion, 20b as shown, or on the sealing ring for engagement with the sealing ring or the portion respectively. The encapsulation, lining and sealing ring may be of a fluorocarbon resin. The back-up means 17 are of elastomer and backed by a rigid ring 15 and a resilient pressure pad 27. The lining is provided with end flanges. which retain the back-up means.
Patent GB-1183216-A (GB)
Title: Arithmetic Device
IPC: G06F9/32
Filed: 1967-09-04
Abstract: 1,183,216. Incrementer-decrementer. INTERNATIONAL BUSINESS MACHINES CORP. 4 Sept., 1967 [28 Sept., 1966], No. 40316/67. Heading G4A. An arithmetic system comprises a register of bi-stables set and reset inputs of which are controlled by 3-input gates partly controlled by the bi-stable outputs, there being means to enter a number to be modified and means to modify it. An 8-bit binary address can be gated in parallel into an 8-flip-flop transistorized register through input gate means of the respective flip-flops, and there incremented by 1 or 8 or decremented by 1 by a pulse on a respective control line. The incrementing and/or decrementing can occur as often as desired by pulsing the control lines repetitively. The pulses on the increment and decrement control lines must be accompanied by pulses on increment and decrement "shift" lines. The true and complement outputs of each flip-flop feed the input gate means of the flip-flop, and in the case of the true outputs of flip-flops 1, 2, 5-7 also the input gate means of the respective next flipflops for ripple carry, and in the case of the complement outputs of flip-flops 1-3, 5-7 also the input gate means-of the respective next flip-flops for ripple borrow. The increment " shift " line goes to the input gate means of flip-flops 1, 4, 5, and the decrement " shift " line goes to the input gate means of flip-flops 1, 5. The increment by 1 control line is applied to the input gate means of flip-flops 1-3. In addition, it and the increment by 8 control line are combined in an increment look-ahead unit with the outputs of flip-flops 1-4 to produce an increment gate signal and an increment lookahead signal which are applied to the input gate means of flip-flops 4, 6, 7. 8 and 5 respectively. The decrement by 1 control line is applied to the input gate means of flip-flops 1-4, 6-8 and is also combined with the outputs of flipflops 1-4 in a decrement look-ahead unit to produce a decrement look-ahead signal which is applied to flip-flop 5. Thus a look-ahead carry may occur at flip-flops 4, 5 and a lookahead borrow occur at flip-flop 5. The whole register can be reset by pulsing a line going direct to all the flip-flops. It is mentioned that decrementing by more than one in a single operation could be achieved similarly.
Patent GB-1066317-A (GB)
Title: Improvements relating to apparatus for use in gas chromatography
Inventor: CARTER HARRY VINCENT
IPC: G01N30/30
Filed: 1963-10-14
Abstract: 1,066,317. Gas chromatography units. PERKIN-ELMER Ltd. Oct. 14, 1963, No. 40451/63. Heading B1L. Gas chromatography apparatus comprises a base (2) of thermally insulating material adapted to engage and thereby complete a partial enclosure (5) and having mounted thereon a detector (26), sample inlet means (18) accessible from outside the completed enclosure, and means (27) to connect the outlet end of a column to said detector. In the illustrated embodiment, to which the above numerals relate, the sampler 18 and detector 26 are mounted to lie outside the enclosure (when the base is resting as a lid thereon) whilst a column 31 is inside the enclosure. The enclosure may be heated by elements 7 and an even temperature obtained by means of fan 10. A further fan 13 cools the motor, the air entering and leaving through vents 14. A separate control unit 3 is provided. The base and apparatus mounted thereon may be replaced when desired, for a fresh analysis, and the individual components are replaceable. If desired the detector 26 may be mounted within a constant temperature enclosure.
Patent GB-1110457-A (GB)
Title: Food dryer
IPC: A23C1/03
Filed: 1965-09-23
Abstract: 1,110,457. Drying slurry. BELOIT CORPORATION. 23 Sept., 1965 [23 Nov., 1964], No. 40637/65. Heading F4G. In a method of drying a food slurry, the slurry is fed to nip between a pair of heated, contra-rotating drums 20, 21 so as to form a thin layer on each drum surface and heated air from sources S is supplied to separate drying hoods forming zones 29, 31, 32 and 33, 35, 36 along the peripheries of the drums 20, 21 respectively to heat each zone to a predetermined temperature to project the air through apertures on to the outer surface of the layers. Doctor blades 37, 38 remove the dried product either to vacuum removal devices 49, 50 or on to slide ways (not shown). The individual hoods may be hingedly mounted for movement away from the surface of the drums and essence recovery means is described.
Patent GB-1394398-A (GB)
Title: Disc brake
IPC: F16D65/02
Filed: 1972-09-04
Abstract: 1394398 Disc brake support SOC ANON DBA 4 Sept 1972 [4 Oct 1971] 40914/72 Heading B3A [Also in Division F2] A U-shaped fixed support has one part F1, with a pair of circumferentially spaced arms defining a recess therebetween, on one side of a brake disc and a second part F2 with corresponding spaced arms on the other side thereof, a pair of members J, J<SP>1</SP> connecting corresponding arms of the parts, and defining a third recess therebetween, each having a gutter g<SP>1</SP> opening toward the support exterior with respect to the disc, each gutter extending from the recess side to the opposite side of the member and its depth being different at its ends. A piece of sheet metal 10 containing a central orifice 11 is formed by piercing, embossing and forming, preferably cold, lines of least resistance 12, 13, 14, 15 for bending then being formed by slots 22, 23, 24, 25. Inner edges 26, 27 are turned over and the gutters g<SP>1</SP> are formed with increasing depth to the outside for strength. Inner ends p of the members J, J<SP>1</SP> are parallel to form guide surfaces for a caliper. Tapped holes in one part F1 expedite fixing to a vehicle axle.
Patent GB-1021010-A (GB)
Title: Derivatives of 2-oxo-2h-1,4-benzoxazine
IPC: C07D265/36
Filed: 1964-10-08
Abstract: The invention comprises compounds of the general formula <FORM:1021010/C2/1> wherein n is an integer of from 1-4 and R is C1- 8 alkyl.  The compounds are prepared by condensing 2-amino-6-chloro-4-nitrophenol with a compound RO-CO-CO-CnH2n-CO-OR wherein R and n are as defined above.
Patent GB-1145676-A (GB)
Title: High speed adder circuit
Inventor: KONO MAKOTO
IPC: G06F7/50
Filed: 1967-09-11
Abstract: 1,145,676. Carry-look-ahead adder. NIPPON ELECTRIC CO. Ltd. 11 Sept., 1967 [28 Sept., 1966], No. 41426/67. Heading G4A. A high-speed carry-look-ahead adder is characterized in that an initial sum and carry bit is formed for each place (in half adders 11), the digits are treated in a plurality of groups, a modified sum bit for each place in each group is obtained by applying an EXCLUSIVE OR function to the initial sum bit for that place and a bit carried into that place which is generated within the group to which the place belongs, a carry bit into each group is determined, a true carry bit for each place is formed by applying logical multiplication to the carry bit into the group to which that place belongs and the initial sum bits within the group in places lower than that said place, and the final sum bit for each place is formed by applying an EXCLUSIVE OR function to the modified sum bit for, and the true carry bit into, that place. The circuit shown in Fig. 1A is used as a NAND gate, output F being a NAND output and G being an AND output. NAND functions followed by an AND function can be formed by connecting together the outputs of several NAND gates (Fig. 5, not shown). Using as inputs A i , B i , as shown, and A i , B i , not shown, sum and carry factors S i , C i  are formed The bit places of, e.g., a 64-bit word are examined in 16 sets of four bits and functions T j  (a transmission factor indicating whether all sum bits of the set are one or not) and D i  (a carry bit into the next more significant set) are formed for each set. Because NAND gates are being used T j  and #Dj are formed. The #D j  and Tj values are further examined in four sets of four bits to give further carry E k  and transmission U k  bits and these are further examined as one set of four bits to produce a corrected set of carries E<SP>1</SP>. The corrected carries E<SP>1</SP> are then used with previously determined terms T, D to determine the carries E<SP>11</SP> produced by sixteen groups each of four bits and these latter carries are used to produce terms F which indicate a carry at a particular place in a group which is carried there from outside the group. Meanwhile a carry term Q is derived which is a carry at a particular place in a group which is produced by a carry formed within that group. This result is EXCLUSIVE ORed with the sum term Q for each place to produce a modified sum term G which is finally EXCLUSIVE ORed with the F terms to produce the sum. The Boolean equations for each term are given.
Patent GB-1005869-A (GB)
Title: Improvements in or relating to hypodermic injection apparatus
Inventor: WRAY LEONARD GEORGE
IPC: A61M5/24
Filed: 1960-12-05
Abstract: 1,005,869. Syringes. F. WANTOCH, and L. G. WRAY. Dec. 5, 1961 [Dec. 5, 1960; Jan. 18, 1961 (2); Oct. 31, 1961; Nov. 9, 1961], Nos. 41702/60, 2021/61, 2022/61, 38886/61 and 40159/61. Heading A5R. A hypodermic syringe comprises a glass barrel 10 containing a plunger 11 from which a reduced stem 19 extends rearwardly through an aperture in a rear cover 20 and terminates in a knob 21. The plunger is formed with a through passage 25 provided intermediately with a valve seat dosed by a spring-biased ball 26. A disc 27, screwed to the front end of the plunger, is spaced from the front end of passage 25. An elastomeric gland 17 is bonded to the interior of the front end of the barrel and also to the interior of a sleeve 30. Secured to the latter and embedded in the gland are an inner disc 31 and an outer disc 32 from which extends a bayonet socket 33. Also embedded in the gland between discs 31 and 32 are a pair of past-circular metal collets 34. The front inner wall of the barrel is constituted by a frustoconical surface 36 of the gland, which latter is formed with a central passage 35. Sleeve 30 is surrounded by a clamp ring 40 carrying diametrically-opposed pins 41 and 42 which pass through holes in the sleeve to engage the collets. The stem of pin 42 is screw-threaded through ring 40 and has a knurled knob 43. A hypodermic needle 14 is fixed either permanently or detachably to a mount 15 provided with a radially-projecting pin 15A which passes through the wall of a flexible sac 16 attached to mount 15 to prevent leakage therebetween. The diameter of sac 16, when the latter is expanded, equals the interval diameter of the barrel. The sac is initially folded and is disposed, together with the mount 15 and needle 14, within a tubular sheath 50 formed with a longitudinal slot in which the pin 15A is disposed. Sheath 50 is pushed through the passage 35 with the pin 15A moving in the arial slot of the bayonet connection in socket 33. The sheater is then turned to locate pin 15A in the circumferential slot of said connection, and is finally withdrawn. Rotation of knob 43 then serves to distort gland 17 for clamping mount 15 therein. At the inward stroke of of plunger 11, sac 16 is compressed into the frusto-conical space, and air in the barrel escapes through the passage 25. During the outward stroke, valve 26 closes the passage 25. In a modification passage 25 is continued through the stem 19 and opens in the knob 21, whereby the open end can be closed by a finger or thumb. In a further modification. Fig. 8, the surface of the plunger 111 is formed with helical grooves and also with a circumferential groove 112 housing a washer 120. The latter collapses during the inward stroke to allow escape of air, and lies rigidly against the inner surface of groove 112 during the outward stroke.
Patent GB-1116335-A (GB)
Title: Compacting apparatus
Inventor: HESLOP JOHN RICHARD WILLIAM
IPC: B65B63/02
Filed: 1965-10-04
Abstract: 1,116,335. Group compacting device. IMPERIAL CHEMICAL INDUSTRIES Ltd. 1 Sept., 1966 [4 Oct., 1965], No. 41994/65. Heading B8C. Cast plaster blocks and like articles 4, 4a, standing on a nylon or polytetrafluoroethylene faced bogie 1 for conveyance into a drying oven, are compacted after drying by moving the bogie beneath horizontal bars 6, held in brackets 7 on columns 5. In the arrangement shown a bottom layer of blocks stands on low friction strips 3, e.g. of nylon, and supports further strips 3a to carry the upper layer 4a. Upper horizontal bars are first inserted in the brackets 7 (as in Fig. 2b) so that the upper layer 4a only is compacted when the bogie passes under the bars after which the compacted blocks are bundled and removed. The bogie is then returned, the strips 3a are removed and the bars are put into the lower brackets 7 in order to compact layer 4 on a second traverse of the bogie. Bars 6 are rubber covered; and either the columns 5 may be movable relative to a stationary bogie, or both the columns and bogie may be moved towards one another.
Patent GB-1503723-A (GB)
Title: Hydrogenation of cyclic unsaturated compounds
IPC: C07C35/27
Filed: 1975-10-14
Abstract: 1503723 Cyclic alcohols SCM CORP 14 Oct 1975 42063/75 Heading C2C The invention comprises a process for hydrogenation, with elemental hydrogen gas in the presence of a hydrogenation catalyst, under hydrogenation conditions, of a cyclic unsaturated compound having a hydroxyl group projecting from an asymmetric centre of the ring and an olefinic carbon-to-carbon double bond which when saturated in the hydrogenation process creates an additional asymmetric centre in the ring, wherein for obtaining increased stereoselectivity by increasing the addition of said hydrogen to that side of the olefin bond on the same side of the compound molecule as said hydroxyl group, said hydrogenation is conducted with a nickel containing hydrogenation catalyst that has a substantial fraction of its reactive surfaces inactivated.
Patent GB-1204014-A (GB)
Title: Locking plate for an axle bearing assembly
IPC: F16B5/02
Filed: 1968-09-05
Abstract: 1,204,014. Anchoring bolts. TIMKEN ROLLER BEARING CO. 5 Sept., 1968 [20 Nov., 1967], No. 42375/68. Heading F2H. A locking plate 30 for an axle bearing assembly is provided around a central opening 32 with apertures (33) (Fig. 2, not shown) for receiving bolts 22, and locking tabs 36, for engaging the bolt heads, arranged adjacent such apertures (33). The apertures are provided in areas of the plate which are interconnected by webs 35. As shown, the locking plate is of substantially triangular configuration and the central opening 32 is able to fit within a correspondingly shaped recess 43 in an end cap 40 of the bearing assembly, the tabs 36 being punched out from the plate to extend generally radially of the bolt apertures (33) and tangentially of the central opening 32.
Patent GB-1433779-A (GB)
Title: Single-lens reflex camera
IPC: G03B9/08
Filed: 1973-09-10
Abstract: 1433779 Reflex cameras ASAHI KOGAKU KOGYO KK 10 Sept 1973 [21 Sept 1972] 42382/73 Heading G2A A single lens reflex camera having a throughthe-lens light-measuring system has a switch actuated prior to exposure to store light measurement information, a switch drive member for actuating said switch, a spring-loaded mirror and/  or diaphragm drive member which is locked by the switch drive member, and a member to release said locking action. As shown, a drive lever 15, pivoted on a shaft 14, has an arm 15b which can engage with a lever 5 which is engageable with both a pin 3 for moving the mirror 2 and with a lever 8 which releases the shutter. Another arm 15a of lever 15 can engage by anti-clockwise movement, under the action of a spring 9, with the end of a diaphragm-actuating lever 18, but in the Fig. 1 position is locked against such movement by an arm 24c of a lever 24. In operation, a lever 23 is rotated during a shutter-tensioning movement, which tensions both springs 9 and 28. During shutter release a lever 22 is pivoted anti-clockwise, which releases a lever 19 to be pivoted anticlockwise by a spring 26 connecting it to lever 18. A pin 20 on lever 19 engages lever 24, pivoting it anti-clockwise and disengaging its arm 24c from lever 15. Lever 15 is now freed to actuate the diaphragm via lever 18 and the mirror via lever 5. Before this happens, however, lever 24 has pivoted a lever 27 clockwise, and a pin 30 at the other end of lever 27 has opened a pair of switch contacts 31, 32. This switch (termed the "memory switch") breaks the connection from the photosensitive element of the light-measuring system to the control circuit, allowing the light measurement information to remain stored in the latter during exposure.
Patent GB-1406083-A (GB)
Title: Cord control device
IPC: B66D1/56
Filed: 1972-09-13
Abstract: 1406083 Curtain cord control E M L PARKIN 10 Sept 1973 [13 Sept 1972] 42418/72 Heading A4B [Also in Division B8] A device for controlling the movement of cords 1, 1', for use in drawing curtains &c., comprises a reversible motor driven winding drum 4 having one end of each cord 1, 1' attached thereto for winding thereon. Such that as the drum is rotated in either direction, one cord winds up whilst the other unwinds, control means being provided to stop the drum drive when the unwinding cord end moves in a direction at right angles to that of the cord travel during unwinding due to the cord end moving into a position for winding back onto the drum. The control means associated with each cord end is a micro-switch 7, 7' controlling the device motor, the cord normally running close thereto during winding and unwinding on one side of the drum, but engageable therewith as the cord end anchored to the drum moves to start winding the cord on the other side of the drum at the limit of unwinding with continued rotation of the drum. The cord ends are anchored to the drum by double passage through bores 6, 6' therein. The drum is driven from an electric motor through a gearless and electric clutch which becomes disengaged when the motor is switched off, facilitating manual pulling of of the curtains &c. connected to the cards. The cords of monofilament nylon leaving the drum, are formed into a loop which is passed over a pulley arrangement with the curtains &c. attached to opposite runs of the loop. The loop may be formed from a separate cord 9 attached to the two cord ends 1, 1' through apertured friction coupling plates 8, 8'.
Patent GB-1450167-A (GB)
Title: Integrated citcuits
IPC: H01L27/088
Filed: 1973-09-12
Abstract: 1450167 Semiconductor device PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 12 Sept 1973 [15 Sept 1972] 42783/73 Heading H1K In an integrated circuit, charge is injected into an inversion layer beneath a field electrode on a semiconductor body via a PN junction, an electronic switch being provided to prevent back flow of the charge when the inversion layer disappears, so that the potential of the body is modified, this potential being used to influence a further element in the integrated circuit. In an embodiment the field electrode is a layer 8 of aluminium on a silicon oxide layer 5. Electrons are supplied by conductor 9 to inversion layer 10 via IGFET 7, 11, 12 while positive pulses # 1  and # 2  are applied. Pulse # 1  cuts off before # 2  and thus charge accumulated in the inversion layer 10 cannot flow back through the IGFET when pulse # 2  cuts off but rather disperses in the body 1. The potential of body 1 is built up by successive pulses until the potential prevents inversion layers 10 and/or 13 from forming. In other embodiments the body 1 may be a region of opposite conductivity type set in semiconductor material and has a connection (26, 27) to the gate (25) of an IGFET (Fig. 5 not shown), the IGFETs may be replaced by planar transistors one of which acts as the switch (Fig. 7 not shown) or the IGFET switch is replaced by a planar transistor with a short circuited PN junction and acting as a PN diode (Fig. 6 not shown). A Schottlay barrier may be used in place of a PN diode as the switch. In the embodiments using an IGFET as a switch the field electrode is preferably at least ten times larger than the gate of the FET. The electronic switch may be disposed between the PN junction and the inversion layer.
Patent GB-1188895-A (GB)
Title: Improvements in or relating to Lasers.
IPC: H01S3/092
Filed: 1968-09-10
Abstract: 1,188,895. Lasers. TELEFONAKTIEBOLAGET L. M. ERICSSON. 10 Sept., 1968 [14 Sept., 1967], No. 43045/68. Heading H1C. In a pulsed output laser in which a single output pulse is obtained in response to constant energy pumping by a flash lamp when the laser active medium has a temperature within a certain range, and in which a plurality of such pulses, or no output, is obtained if the temperature falls below or rises above the range, respectively, the energy transmitted by the flash lamp is controlled in accordance with the active medium temperature so that a single output pulse is obtained at all times. The flash lamp L is fired by the energy stored in a capacitor C when a switch S2 is closed, and the capacitor C is charged from a D.C. source E through a resistor R1 when a switch S1 is closed. When the required energy is stored in the capacitor switch S1 is opened, this being effected by the output from a voltage level sensing device ST, e.g. a Schmitt trigger, connected to the junction of a fixed resistor R and a thermistor r(t) responsive to the temperature of the active medium.
Patent GB-1367115-A (GB)
Title: Materials suitable for internal combustion engine valve seats
IPC: C22C32/00
Filed: 1971-09-15
Abstract: 1367115 Sintered alloy compositions HONDA GIKEN KOGYO K K and SUMITOMO DENKI KOGYO K K 15 Sept 1971 [15 Sept 1970] 43069/71 Heading C7A A material suitable for valve seats of internal combustion engines comprises, in wt per cent:- 2 to 4% lead 20 to 25% copper 0À2 to 2% carbon the balance being iron and incidental impurities. The valve seat need only have this material at the surface, compounds of lead and copper exuding out of the alloy matrix at engine operating temperatures to form anti-friction or lubricating layers. The alloys are prepared by sintering in reducing atmosphere; in an example, Fe, 25% Cu, 4% Sb, 1% C is sintered at 1120C.
Patent GB-1080248-A (GB)
Title: Method for drilling wells and similar boreholes and aqueous media suitable for injection into such boreholes
Inventor: PATTON JOHN TINSMAN
IPC: C09K8/20
Filed: 1965-10-11
Abstract: 1,080,248. Oil-well fluids. ESSO PRODUCTION RESEARCH CO. Oct. 11. 1965, No. 43081/65. Heading E1F. [Also in Division N.A.] A drilling liquid with improved viscosity characteristics comprises a heteropolysacoharide produced by the bacterial action of Xanthomonas on a carbohydrate which has been cross linked with gp. III-VIII polyvalent cations. Other conventional additives are exemplified.