baber/WOPTO huggingface dataset:
Patent GB-1486580-A (GB)
Title: Heptapeptides
IPC: A61K38/00
Filed: 1974-12-06
Abstract: 1486580 Hexa and heptapeptides AYERST MCKENNA & HARRISON Ltd 6 Dec 1974 [10 Dec 1973 1 Aug 1974] 50494/76 Divided out of 1486578 Heading C3H Peptides of formula wherein X is OH or O(lower(C 1 -C 4 )alkyl) α is Acm or Trt R 3  is hydrogen or Boc-NH- or an acylating derivative (defined) thereof, provided that, if R 3  is Boc-NH-, Lys may be replaced by D-Lys. The peptides may be prepared by a process which comprises: the reaction of the dipeptide with an activated ester of to yield the tripeptide which is treated under moderately acidic conditions (defined) to yield which is reacted with an activated ester of to yield the tetrapeptide which, on hydrogenation in the presence of a noble metal hydrogenation catalyst, yields which is reacted with an activated ester of wherein either 8 is hydrogen and 81 is Trt, or 8 and #<SP>1</SP> together represent Chb, to yield which is reacted with an activated ester of (which is obtained by the reaction of H-Gly- O(lower alkyl) with an activated ester of CH 3 CH(R<SP>3</SP>)COOH, and hydrolysis of the resultant compound) to yield which, on reaction with hydrazine hydrate, yields which is reacted with an organic nitrite (preferably t-butyl nitrite or isoamyl nitrite) yields Peptides of the invention prepared are: Boc - Ala - Gly - Cys(Trt) - Lys(Boc) - Asn- Phe-Phe-N 3  Boc - Ala - Gly - Cys(Trt) - D - Lys(Boc) - Asn- Phe-Phe-OCH3 Boc - Ala - Gly - Cys(Trt) - D - Lys(Boc) - Asn- Phe-Phe-NHNH 2  CH 3 CH 2 CO - Gly - Cys(Trt) - Lys(Boc) - Asn- Phe-Phe-OCH 3  CH 3 CH 2 CO - Gly - Cys(Trt) - Lys(Boc) - Asn- Phe-Phe-NHNH 2  CH 3 CH 2 CO - Gly - Cys(Trt) - Lys(Boc) - Asn- Phe-Phe-N 3 . Peptides intermediates isolated are: PENTAPEPTIDES: Chb - Cys(Acm) - Lys- (Boc) - Asn - Phe - Phe - OCH 3 ; Trt and H - Cys- (Trt)-Lys(Boc)-Asn-Phe-Phe-OCH 3 ; H and Trt- Cys-D-Lys(Boc)-Asn-Phe-Phe-OCH 3 . TETRAPEPTIDES: Z and H-Lys(Boc)-Asn- Phe-Phe-OCH 3 ; Z and H-D-Lys(Boc)-Asn-Phe- Phe-OCH 3 . TRIPEPTIDES: Boc and H-Asn-Phe-Phe- OCH 3 . Dipeptide intermediates isolated are: Boc-Ala-Gly-OCH 3 , OH and OTcp; Boc and N-Phe-Phe-OCH 3 .
Patent GB-1122675-A (GB)
Title: Combination valve spout and spray head assembly
Inventor: HUG RICHARD CHRISTOPHER
IPC: B05B1/08
Filed: 1965-11-29
Abstract: 1,122,675. Spray-producers. CLAYTON CORP. OF DELAWARE. 29 Nov., 1965, No. 50585/65. Heading B2F. Apparatus suitable for spraying a liquid from a pressurized container 10 comprises a member 12 provided with a hollow cylindrical stem 18 defining a resonance chamber 22, a constriction in the form of a jet orifice 30 communicating axially with the chamber whereby an accelerated stream of liquid is introduced from the container axially into the chamber, and an actuator spray head 28 mounted on the stem 18 so as to disrupt the axial stream, which is subsequently discharged from the spray orifice 54 as a pulsating spray. The broken-up liquid particles in the chamber 22 are re-accelerated through a spiral passage (48), Fig. 2 (not shown) to the orifice 54 which is defined in a thin wall 52. The wall 52 responds like a diaphragm to pressure fluctuations in the chamber 22. The spiral passage may be replaced by tangential passages (68), Fig. 4 (not shown). The lower end of the member 12 is provided with a valve head 16 provided with lateral flow passages 32, the valve being opened by depressing or tilting the head 28 which is provided with a knurled portion 42. A cavity 56 in the head 28 forms a hood or shield. An anti-chamber (55), Fig. 3 (not shown) may be provided immediately behind the spray orifice.
Patent GB-1530263-A (GB)
Title: Apparatus for metering and transporting particulate material
IPC: A01C7/04
Filed: 1974-11-22
Abstract: 1530263 Metering and transporting particulate material F W McCONNEL Ltd 11 Nov 1975 [22 Nov 1974 3 June 1975] 50664/74 and 23908/75 Heading AID Seed held in suction holes 4 formed in circumferential grooves 3 in a rotary drum 1 is removed by adjustable deflectors 26 and urged along passages 25 by injecting air at D into each passage 25. Wheels 19 are provided with resilient outer surfaces engaging in the grooves 3, and are rotated at the same speed as the drum 1 so that only one seed at a time is removed from the drum 1 (and elongate seeds are tilted towards the passages 25). The drum 1 and the wheels 19 are driven from one or more land wheels e.g. on the tractor carrying the apparatus. The seeds are separated from the air streams by coanda elements 29 before filling into furrows formed by coulters 28. Air is supplied to points D by a pump 14 which also supplies air at 15 to recirculate seed through tubes 11 onto the drum 1. Recirculatioh may instead be by auger (not shown). The top of the hopper 10 is of wire mesh to permit the escape of husks and chaff in the air stream from the tubes 11. Cleaning brushes 26b are rotated in the same direction as the drum 1.
Patent GB-1306309-A (GB)
IPC: C22C38/44
Filed: 1971-11-02
Abstract: 1306309 Free machining stainless steel SANDVIK AB 2 Nov 1971 [12 Nov 1970 4 June 1971] 50962/71 Heading C7A Free machining stainless steel comprises:- the balance, apart from impurities such as N and P, being Fe. The steel may be hot worked at 1200‹C., solution treated at 1050‹C. and quenched.
Patent GB-1431969-A (GB)
Title: Push-pull transferred-electron oscillation apparatus
IPC: H03B9/14
Filed: 1973-11-02
Abstract: 1431969 Semi-conductor oscillators VARIAN ASSOCIATES 2 Nov 1973 [3 Nov 1972] 50974/73 Heading H3T In a push-pull transferred electron device circuit having a cavity resonator 12 for TE or TM mode operation, a pair of transferred electron devices, such as Gunn diodes 14, are spaced apart by approximately an integer number of full wavelengths of the predetermined operating frequency in the cavity and are coupled to approximate equal electromagnetic fields of opposite time phase such that the energies of the pair of devices add in phase. Output is taken, such as via an iris 31, to a utilization circuit such as a waveguide 32.  As shown, Fig. 1, the Gunn diodes 14 are mounted on the ends of conductive posts 17 within a silver plated cavity resonator formed in a copper body 12. The main cavity resonator appears as two inductively coupled half wavelength resonators 131 and 13<SP>11</SP>, Fig. 3. D.C. bias V B , is connected via RFC's 21 to the diodes 14 and a Zener diode 38 protects the Gunn diodes 14 from connection of a reverse polarity supply. A dielectric tuning post 23 such as of sapphire may be adjusted by a screw 24. A pair of lossy mode suppression posts 28 such as of carbon impregnated epoxy suppress undesired modes of oscillation and when adjusted to the desired position may be secured with epoxy cement at 29.
Patent GB-1017880-A (GB)
Title: Improvements in or relating to space clearing tools for mines
IPC: B65G19/18
Filed: 1964-12-15
Abstract: 1,017,880. Reciprocating conveyers. GEBR EICKHOFF MASCHINENFABRIK U. EISENGIESSEREI. Dec. 15, 1964 [Dec. 18, 1963], No. 51001/64. Heading B8A. [Also in Division E1] Ramps 3 are connected at spaced intervals along a haulage chain 5 which allows of longitudinal reciprocation of the ramps relative to a conveyer on the face side of which the ramps are guided for clearing mined mineral from the floor in front of a mineral face. The floorcontacting undersurface of each of the ramps projects below the undersurface of the conveyer to ensure by weight distribution of the installation on the floor penetration of the ramps at floor level into the mined mineral. Each ramp is connected by a lug 8 to the lower run of the round link endless haulage chain which travels in guides 6, 19 secured to the face side of the trough of the conveyer.
Patent GB-1269308-A (GB)
Title: Improvements in or relating to voltage regulators
IPC: H02J7/16
Filed: 1970-11-03
Abstract: 1,269,308. Automatic voltage control. NIPPONDENSO K. K. Nov. 3, 1970 (Nov. 14, 1969J, No. 52114/70. Heading G3R. A voltage regulator for a variable speed D. C. generator 2 comprises a transistor 9 which switches the generator field winding 3 to maintain the output voltage at a predetermined value, a transistor 10 which determines the states of transistor 9 in response to the output voltage, a resistor 12 having a high positive temperature co-efficient of resistance connected between the generator output and the loads 6, 7, and a differential amplifier comprising transistors 20, 21 which is responsive to the current through the resistor to cause the transistor 10 to make transistor 9 non-conductive when this current exceeds a predetermined value. In normal operation variations of the output voltage about the predetermined value alter the state of a Zener diode 13 to switch a transistor 11 on or off, thus effecting a corresponding action of the transistors 9, 10. The voltage across the resistor 12 determines the value of the output of the amplifier 20, 21 applied to a Zener diode 31, which breaks down at an output value corresponding to a predetermined current through the resistor to make transistor 10 conductive and so switch off the transistor 9. Resistor 12 also responds to variations of ambient temperature. The generator 1 may be replaced by an alternator with rectified output. The described embodiment may be modified, Fig. 2 (not shown) by omitting members 11, 16, 17 and 19 and replacing the resistor 26 by two seriesconnected resistors, whose junction is connected to the base of transistor 10 through the Zener diode 13 and to the collector of transistor 9 through a capacitor and resistor in series.
Patent GB-1411099-A (GB)
Title: Method of producing a mixture with constant constituent composition from several raw materials and a regulating device for carrying out the method
IPC: G05D11/08
Filed: 1972-11-13
Abstract: 1411099 Automatic control of mixture constituents KLOCKNER-HUMBOLDTDEUTZ AG 13 Nov 1972 [13 Nov 1971] 52245/72 Heading G3R A method of producing a mixture with constant constituent composition from a plurality of raw materials which are premixed in measured quantities requires that the mixture is subjected to x-ray analysis and the dosage rate of a respective raw material is adjusted accordingly within a predetermined range to obtain the correct constituent composition in the mixture. If this adjustment is inadequate then the dosage rate of at least one other raw material is changed in a stepwise manner until the dosage rate of the respective raw material again falls within its range. In the circuit arrangement shown the raw materials pass through premixer 1 to analyzer 2 and the average output passes to control unit 7. The actual constituent values needed are in setting unit 6 and pass, as reference values, to comparator 7 so that any error signal passes to logic 9 after being added to the basic dosage rate at 8. If the change in rate is outside the predetermined range, control unit 10 is signalled and causes logic unit 11 to change in steps  the proportion of the other raw materials in turn starting with the one containing the constituent which has the smallest influence on the mixture. The predetermined quantities are set in 5 and the changes are applied by summation devices 17, 18, 19, so that the actual requirement signalled from setting device 6 is changed. A residual minimum value is obtained from device 4.
Patent GB-1133889-A (GB)
Title: Improvements in or relating to implements for working crop lying on the ground
IPC: A01D78/02
Filed: 1966-11-22
Abstract: 1,133,889. Haymaking machines. C. VAN DER LELY N.V. 22 Nov., 1966 [3 Dec., 1965], No. 52329/66. Heading A1F. In a drum-tedder of the type having a power-driven, tined, drum 9 partly surrounded by a baffle 12, a guide-screen 15 for the discharged crop is pivoted to the rear edge 14 of the baffle and vertical guide-member 23 are pivoted at each side to the rear of the baffle so as to be adjustable about vertical axes to reduce the width of the discharged windrow to less than the working width of the machine. The rear edge of the baffle is defined by a tube 14 to which the screen 15 is fixed, the tube being carried by brackets 13 secured to the end-walls of the baffle. Adjustable struts 18 are connected between the brackets and the outer edge 17 of the screen to control its inclination. The members 23 are hooked at their lower front corners into slots in the brackets 13 and are suspended at intermediate points from rods 28 slidable in clamps 29 secured to the guide-screen. The main frame of the machine is tubular and incorporates a drive from a gearbox 1 to the drum 9. It is mounted on castors 7 and has a drawbar 10 adjustable about a vertical pivot on the gearbox to permit the machine's being drawn at an oblique angle to the axis of the drum. Reference has been directed by the Comptroller to Specifications 1,021,491 and 1,021,493.
Patent GB-1454609-A (GB)
Title: Apparatus for printing indicia on surfaces
IPC: B41F27/12
Filed: 1974-12-05
Abstract: 1454609 Attaching printing elements to forme cylinders CONTAINER GRAPHICS CORP 5 Dec 1974 [8 April 1974] 52661/74 Heading B6C  A strap 48 attaching a mounting sheet to a printing cylinder has a first portion 50 with an elongate part 64 which is passed through a hole in one edge of the mounting sheet 22 and folded back as shown; a second portion 52 having means, e.g. integrally formed hook 68, engaging the printing cylinder; the first and second portions being interconnected by resilient means 54. Preferably the resilient means 54 is two endless resilient bands so that if one breaks, the strap does not part. The mounting sheet preferably has an integrally formed hook at the end remote from the strap to engage in a similar recess to that shown at 68. An extension piece may be provided for the strap, the extension piece having a single slot for the elongate part 64, and its own elongate part for co-operation with the slot in the mounting sheet (Fig. 6, not shown).
Patent GB-1127512-A (GB)
Title: Control system involving comparison of reference value and actual value
Inventor: SCHAEFER PAUL
IPC: G01P3/489
Filed: 1965-12-13
Abstract: 1,127,512. Automatic control. INSTITUT FUR REGELUNGSTECHNIK. Dec. 13, 1965, No. 52741/65. Heading G3R. Pulses having frequencies corresponding to actual and desired values of a variable are compared by a specified gating, counting, and logic network to derive an error signal which is applied through a digital to analogue converter to correct the variable. As shown, e.g. for automatic speed control by comparing a frequency dependent on speed, f 1 , with a reference frequency, f 2 , impulses at these frequencies are applied through gates T, T 2  to counters Z 1 , Z 2  for a period determined by pulses A of stabilized duration derived from a source Q. At the end of each pulse A, gates T 1 , T 2  are closed and a gate L 1  opened so that pulses from source Q are effective through gate L 1  and or gates 01, 02 to drive counters Z 1 , Z 2  on towards their maximum count states. If one counter, say Z 1 , reaches its maximum before the other, indicating a speed error, an output pulse, A 1 , produced by the counter is effective to close gate L 1  through an or-gate 03 and to open a gate L 3  so that pulses from source Q are effective through gate L 3  to drive counter Z 2  to its maximum. The number of pulses required to accomplish the latter, being a measure of the speed error, is applied, after division at T if desired, to inputs As of limiting digital to analogue converters EZ, YRZ which respectively produce proportional and integral signals for speed correction purposes. If the other counter Z 2  reaches its maximum first, indicating error in the opposite sense, correction pulses are applied through a gate L 2  to inputs A 4  of the analogue to digital converters to produce correction in the opposite sense.
Patent GB-1455340-A (GB)
Title: Thermoelement and thermopile
IPC: H01L35/08
Filed: 1974-12-06
Abstract: 1455340 Thermoelectric devices Z M DASHEVSKY Y A KALLER N V KOLOMOETS and I V SGIBNEV 6 Dec 1974 [6 Dec 1973] 52796/74 Heading H1K A thermoelectric element, Fig. 1, comprises an insulating substrate 1 having N- and P- type semiconductor films 2 and 3 applied to both surfaces of it, the films forming the branches of the element and each branch consisting of two semiconductor films, e.g. 2<SP>1</SP> and 2<SP>11</SP>, of one conductivity type applied opposite each other on opposite sides of the substrate, the substrate 1 having a row of through holes 4 between the branches, and with conductive strips 5, 6 disposed on opposite sides of the substrate for connecting the branches, the strips 5, 6 being electrically connected to each other by metal layers 7 extending through the holes 4. A number of such elements may be arranged on a common substrate 1 to provide a thermopile of series-connected elements, but in which each branch consists of two similar films connected in parallel. Fig. 3 shows a thermopile in which the substrate 9 is flexible and is accordeon-pleated along the rows of holes 4. Heat transfer buses 10, 11 are connected to the substrate bends with the voltage taken off leads 12 and 13.
Patent GB-1397857-A (GB)
Title: Punch press having a discharge feeder
IPC: B21D45/00
Filed: 1973-11-14
Abstract: 1397857 Punching LIPE ROLLWAY CORP 14 Nov 1973 [14 Nov 1972] 52877/73 Heading B3W [Also in Division B8] A punch press 10 has a bolster plate 11, a female die 12 close above the bolster plate 11 and a discharge conveyer comprising a feed strip 16 extending under the female die 12 above the bolster plate 11 and supported on inclined springs 17, the strip 16 being covered on its upper surface with pile material having flexible filaments 26 uniformly inclined by 5-25 degrees from a line normal to the surface of the strip 16 towards discharge end 18. The filaments 26 have uniform length and thickness and a sufficient density so that only their tips support objects discharged from the female die 12 of the punch press 10. A vibrator 20 is connected to the bottom of the strip 16 by a drive bracket 19. The filaments 26 are sufficiently resilient to flex under the objects during upward movement of the strip 16 when vibrated to increase the feeding speed and force of the strip 16 in moving the objects out of the punch press 10. In a modification, Fig. 3, (not shown), a vibrator (21) is pneumatic and drives a ball (22) in an orbit in a housing (21) to vibrate the feed strip 16. Guide rails 24 keep objects on the top surface of the strip 16. A jam-up or pile-up of parts may be detected by micro-switches (32) or (53), Figs. 2 and 5 (not shown), which operate to switch off the punch press 10 to prevent damage. Reference has been directed by the Comptroller to Specification 1,321,191.
Patent GB-1153280-A (GB)
Title: Speed Control System for DC Motors
Inventor: UEMURA SABURO
IPC: H02P7/28
Filed: 1966-11-25
Abstract: 1,153,280. Automatic control of speed. SONY CORP. Nov.25, 1966 [Nov. 26, 1965], No. 52941/66. Heading G3R. The speed of a D. C. motor is controlled by adjustment of the mark/space ratio of the switching device in its supply circuit in response to modulated sine wave signals derived from a device rotating with the motor. The pure sine wave is fed to a discriminator which produces a D. C. voltage 23a inversely proportional to frequency; this is added to the sine wave to produce the signal 22 and 23, which is then clipped at an adjustable level 24 and those portions above the line 24 are applied to a switching amplifier whose output is square pulses which power the motor. The sine wave generator is preferably a rotating magnetic disc, but may be a photo-electric device.
Patent GB-1276375-A (GB)
Title: Transistor differential amplifiers
Inventor: SOLOMON JAMES E
IPC: H03F3/45
Filed: 1969-10-29
Abstract: 1276375 Transistor amplifying circuits MOTOROLA Inc 29 Oct 1969 [22 Nov 1968] 52988/69 Heading H3T In a transistor differential amplifier (Fig. 4) the base-emitter junctions of output transistors 12, 14 are connected across the collector-emitter paths of complementary type input transistors 10, 16. This permits low input currents and zero collector-base voltage for transistors 10, 16 to eliminate collector-base leakage and renders the output current of transistors 12; 14 independent of their # value. In Fig. 4, the arrangement is supplied from current sources 56, 58, 68 althrough separate or common sources may be used for the two collector-base connections or the two emitter-base connectors (Figs. 3-6, not-shown) 60, 62 provide positive feedback to minimize signal propagation time and resistors (82, 84, Fig. 6, not shown) may be connected to the emitters of transistors 12, 14 to minimize overshoot and maximize rise time. In Fig. 7, transistors 10, 12, 14, 16 are supplied from constant current sources 86, 90, 92. An input signal for a second amplifier stage 23 is derived from the difference in output signals of 12, 14 in a circuit comprising transistors 98- 102. Common mode signals are thus eliminated. A Miller capacitor 136 provides frequency compensation for stage 23 by reducing its output impedance at high frequencies. A transistor 122 provides a voltage drop to reduce the quiescent current through the class A, B outputstage 25 to about one fifth of that through transistors 122 126. Transistors 124, 126 provide temperature compensation for output transistors 154, 156. To protect the amplifier from shorting of the output terminal to ground diodes 144, 146 are provided. For positive going shorts, the output current is limited to that supplied by transistor 118 through diode- 146. For negative going shorts, a transistor 134 is turned on, to turn off transistor 128 and hold transistor 130 in a constant current condition, the current being conducted through diode 144. Transistors 85 and 87 provide overvoltage protection for the input amplifier.
Patent GB-1462667-A (GB)
Title: Mixing devices
IPC: B01F33/40
Filed: 1974-12-09
Abstract: 1462667 Fluidised bed blending apparatus NATIONAL RESEARCH DEVELOPMENT CORP 26 Nov 1975 [9 Dec 1974] 53108/74 Heading B1C Apparatus for mixing and/or homogenising powdered materials comprises a container 1, a plurality of jet nozzles 3 or jet orifices arranged in at least two regions at or near the base of the container and gas supply and control means whereby the nozzles in each region can be activated intermittently and in a predetermined regional sequence, the jets of gas having an exit velocity of at least 100 ft/ sec. As shown the regions may be quadrants 6, 7, 8, 9 but in other embodiments (Figs. 3 and 4 not shown) include annular regions, an outer annular region of which may have its nozzles permanently activated. Valves 12 may be provided to ensure a reduced supply of gas to the nozzles 3 during the quiescent periods and reference is made to continuous supply of gas to all the nozzles at a reduced rate when the container is in use for storage of powdered materials. The discharge outlet 4 may include a conical portion with a ring 5 of aeration nozzles for controlled aeration of the discharging materials to prevent bridging. More than one outlet (Fig. 6 not shown) may be provided, leading to a common discharge conveyor.
Patent GB-1444282-A (GB)
Title: Implements for the displacement of crop or like material lying on the ground
IPC: A01D78/12
Filed: 1973-07-09
Abstract: 1444282 Haymakers C VAN DER LELY NV 9 July 1973 [13 July 1972] 53229/75 Divided out of 1444281 Heading A1F The rotary rake head haymaker is included in the description of copending Specification 1444281 but the claims are directed to the freely-rotatable annular or dish-shaped support member 137 adjustably fixed to the rake head shaft 27 by collar 141. The radius of the support member is equal to or greater than that of the rake head cylinder 68. In its annular form it is supported by two arms 139.