baber/WOPTO huggingface dataset:
Patent GB-706922-A (GB)
Title: Improvements in or relating to cameras, particularly television cameras
Inventor: ALLANSON DOUGLAS
IPC: H04N5/232
Filed: 1951-03-22
Abstract: 706,922. Lens mounts: diaphragms. PYE, Ltd. March 24, 1952 [March 22, 1951], No. 6928/51. Class 97(1) [Also in Group XXXVIII] The focusing of a multi-lens camera is effected by a servo-motor controlled from a bridge circuit comprising a manually adjusted potentiometer and another adjusted automatically by the servo-motor, the control circuit containing resistors selected by the operating lens so that the adjustment of the manual potentiometer for a given change in focal length is the same for each of the lenses. A television camera comprises a housing 25, Fig. 1, incorporating a rotatable turret 28 containing a number of lenses 27, 27a, Fig. 2, and carrying a pick-up tube 31 on a cradle 30 movable along guides 29 to effect correct focusing by a motor drive 32, in accordance with the position of the slider of a potentiometer 13, manually controlled by knob 35. The potentiometer 13 and an internal potentiometer 8 are connected as a bridge fed from a transformer 5, Fig. 5, the unbalance voltage being amplified at 15 to energize the armature winding 2 of a motor 1, which through motor drive 32, moves the cradle 30 and the slider 7 of potentiometer 8 until balance is restored. The potentiometer 13 may be replaced by a different potentiometer 14 on the housing 25, or a remote potentiometer 38, by a switch 12 at the rear of the housing. A resistor 10 selected by the particular lens 27a in the operative position, is connected into the bridge circuit to correlate the focusing of the different lenses, and a further selected resistor 11 is connected in series with a generator winding on the motor 1 to control the degree of negative feedback voltage added to the unbalance signal. Each lens 27 is carried on a base-plate 45, Fig. 4, also carrying the individual resistors 10, 11 associated with that lens. When the unit is rotated on the turret 28 to the operative position the resistors 10, 11 which are brought out to contact segments 47, 48, are automatically connected into the control circuit. The lens units also carry an iris diaphragm setting gear wheel 59 which co-operates with a driving wheel 60 operated by a motor drive 62 through a shaft 61, the arrangement being such that movement of a lens unit from the operative position disconnects the resistors 10, 11, but does not affect the diaphragm setting. The iris control motor 16 is operated by press button 19, 20, which control the energization of relays 17, 18 determining the energization of windings 16a, 16b to rotate the motor in one or other direction. The gear wheel 59 is attached to a cam 64 which determines the position of the slider of a potentiometer 66, thereby giving a visual indication of the iris diaphragm setting' on a meter 67. The turret 28 is similarly controlled by a motor 22 through press buttons 68, 69, a switch 70 being opened when a lens 27 does not occupy the operating position, thereby interrupting the transmission of video signals. Specifications 670,602, 670,608 and 699,074 are referred to.
Patent GB-540608-A (GB)
Title: Improvements in percussive apparatus
IPC: E02D7/12
Filed: 1940-04-17
Abstract: 540,608. Power hammers. DOUGLAS, F. L. April 17, 1940, No. 6933. [Class 83 (iv)] A Diesel-operated rammer or the like comprises a light cylinder 1 and heavy piston 2 which after each explosion moves away from the lower head of cylinder, constituting the ram foot 6, lifts the cylinder and allows it to fall, giving a light blow, and then, itself falling, gives a heavy blow. The cylinder has a fuel injection nozzle 10, air inlet 7, and exhaust 8 and is divided by the piston into a compression chamber 3 and a combustion chamber 4 connected by a passage 5. The fuel is fed from a reservoir 9 by a pump 11 operated by a rod 12 and abutment 13 connected to the piston rod 14. The piston is raised, for starting, by an abutment 18 on chain 17a, driven e.g. by a hand lever on the shaft of the gear 17. The piston may be held up by a catch 23 engaging the abutment. In a modification, the piston 2a, Fig. 5, is stepped and the section of the combustion chamber is smaller than that of the compression chamber. The fuel reservoir may be arranged in the piston rod or, as shown in the piston which also houses the pump 11 and nozzle 10. The pump is operated by a lever 20 carried by the piston and engaged by an abutment 21 which can be withdrawn by a handle 24. A rack 29 and pinion 30 may be used for raising the piston initially. Specification 493,720 is referred to.
Patent GB-105650-A (GB)
Title: Improvements in Wheels for Road Vehicles.
Inventor: RUTHERFORD RICHARD
IPC: B60C23/12
Filed: 1916-05-16
Abstract: 105,650. Rutherford, R. May 16, 1916. Actuating pumps by motion of vehicle; starting and stopping pumps automatically.-A pump carried by, and operated by the rotation of, a wheel is provided for charging an annular space 4 formed between disks 1, 2 and a sleeve 15 with compressed gas for tyre inflation through connexions 11 and cocks 13 and is automatically put out of action when the desired pressure is at. tained. The pump cylinder 17, having a non-return, valve 19 opening into the space 4, is fitted with a piston 20 which is operated from an eccentric 23 on the axle 16, the eccentric flanges 24 bearing on rollers 26 carried by the collar 25 in. tegral with the piston.20. A spring 27 normally holds the parts 24, 25 in working relation, but is overcome when the required pressure is set up in the space 4 owing to the movement of the piston 21 which is also carried by the collar 25.
Patent GB-670435-A (GB)
Title: Improvements in or relating to fluorine resistant materials
IPC: C04B9/06
Filed: 1949-03-15
Abstract: Apparatus for the production or handling of fluorine or anhydrous acid fluorides is constructed of or coated with a corrosion resistant composition having at least a matrix of zinc oxychloride or zinc oxybromide.  The composition may also be employed as a jointing compound for the apparatus and is formed by mixing a solution of zinc chloride or zinc bromide with zinc oxide, if desired, with the incorporation of fillers, e.g. rouge, calcium fluoride, polymerised tetrafluoroethylene, carbon, graphite, copper, nickel, stainless steel, magnesium or "Monel" (Registered Trade Mark) metal and then moulding into shape. Elements of the electrolytic cell described in Specification 668,465, [Group XXXVI], may be constructed of the composition.
Patent GB-185433-A (GB)
Title: Improvements in the preliminary treatment of cellulose intended for the manufacture of viscose
IPC: D21C9/08
Filed: 1921-03-04
Abstract: Cellulose for use in the manufacture of viscose, is subjected to a preliminary treatment with acid under the conditions hereinafter specified and which are selected so as to avoid the production of hydrocellulose.  The cellulose is heated for several hours either with 0.5 per cent hydrochloric acid at 100 DEG  C., or with 2 per cent hydrochloric acid at 80 DEG  C., or with 8 per cent sulphuric acid at 40-50 DEG  C., or with 0.2 per cent sulphuric acid at an excess pressure of half an atmosphere, or in the case of bleached cellulose after immersion in 0.5 per cent sulphuric acid with subsequent heating to the boiling point.  The initial material is bleached or unbleached or unbleached sulphite, or soda-cellulose. With cellulose treated in this manner, considerably smaller proportions of caustic alkali and carbon disulphide are required in the manufacture of viscose; the viscose solution can be spun without ripening to give lustrous and strong threads; and in the case of an unbleached cellulose, the brown dyestuff remaining in the threads acts as a mordant when the threads are dyed.  Specification 4713/96 is referred to.
Patent GB-1021196-A (GB)
Title: Novel amino acids and means for producing the same
Inventor: DAVOLL JOHN
IPC: A61K31/505
Filed: 1964-02-20
Abstract: The invention comprises compounds of formula <FORM:1021196/C2/1> in which n is 1 or 2 and R is hydrogen or a methyl group, and the preparation thereof by reacting a 2,4-diacylamino-6-halomethyl-quinazoline with at least one equivalent of an N-(p-aminobenzoyl)-amino acid lower alkyl diester of formula <FORM:1021196/C2/2> (wherein R1 is a C1- 4 alkyl group and Acy is an aroyl or C1- 4 alkanoyl group in the presence of an acid acceptor, and hydrolysing the resultant N - {p - {[(2,4 - diacylamino - 6 - quinazolinyl) methyl] - amino} - benzoyl} - amino acid lower alkyl di-ester of formula <FORM:1021196/C2/3> The compounds of the invention exist as D- and L-optically active forms, and as the optically racemic DL-form.  Therapeutic compositions, which are useful as folic acid antagonists and antiviral and tryparosomicidal agents and which may be administered orally or parenterally in unit dosage form, contain as active ingredient compounds of the first general formula above.  N - (p - Aminobenzoyl) - aspartic acid diesters of the second general formula above may be prepared (1) (when R = H) by treating a solution of aspartic acid di-ester hydrochloride with p-nitrobenzoyl chloride and hydrogenating the N - (p - nitrobenzoyl) aspartic acid di - ester; (2) (when R = CH3) by adding oxalyl chloride to a suspension of p-(N-benzyl-N-methylamino)-benzoic acid, treating the product, p-(N-benzyl-N-methyl-amino) benzoyl chloride, with aspartic acid di-ester hydrochloride to give N-[p - (N1 - benzyl - N1 - methylamino) - benzoyl]-aspartic acid di-ester, and removing the benzyl group by hydrogenolysis.
Patent GB-1489731-A (GB)
Title: Electronic watch construction
IPC: G04G99/00
Filed: 1976-02-24
Abstract: 1489731 Battery mountings HUGHES AIRCRAFT CO 24 Feb 1976 [31 March 1975] 07272/76 Heading H1B [Also in Division G3]  In an electronic watch comprising a substrate 28 which carries electronic circuitry and at least one terminal 30 or 32 for connection to a power cell 42 or 44, a pad 50 or 52 of resilient, electrically conductive material is interposed between the cell and the terminal to spread the shock load on the substrate if the watch is dropped. As described the substrate is of ceramics and the pads are of silicone rubber loaded with silver powder. If sufficiently resilient pads can be provided, contact springs 46, 48 can be omitted.
Patent GB-253220-A (GB)
Title: Improvements in hooks
IPC: F16B45/06
Filed: 1925-03-18
Abstract: 253,220. Guest, J. E., and Guest, O. D. March 18, 1925. Hook, safety, spring, slip, and closed.- A `scissor-hook' for a dog-lead consists of a pair of members 1, 2 connected by a rivet 10 at a point between their ends. A spring 18 keeps the ends 8, 9 of the portions 3, 4 together, these overlapping to prevent lateral movement. Of the other ends, one 15, is reduced in width so as to move within a slot 16. The rivet 10 is formed from sheet metal and provided with a T or other shaped head 13, a shank 11, a shoulder 12 and a part 14 of smaller diameter to pass through the member 1 and be riveted thereover.
Patent GB-350388-A (GB)
Title: A process for the separation of fatty or wax-like bodies from their solutions
IPC: C10G73/04
Filed: 1930-03-06
Abstract: Petroleum jelly, paraffin wax, montan wax, and the like substances crystallizing badly or not at all, are separated from their solutions in mineral oil distillates or other organic solvents by dissolving in the warm solutions a substance which crystallizes well and in amount about equal to the wax &c., cooling to precipitate the substance and the wax &c. together removing the solvent, and separating the added substances from the wax &c.  Crystallizing substances specified are naphthalene, anthracene, phenanthrene, p-dichlorbenzene, and p-dibrombenzene. For example, 40 kg. of steam-refined filtered cylinder oil solidifying at 25 DEG  C. are dissolved in 30 kg. of petroleum, and 10 kg. of naphthalene are dissolved in at 30 DEG  C. The solution is cooled to -15 DEG  C. and filtered.  Naphthalene and petroleum are removed by distillation from the filter cake and the filtrate leaving 10 kg. of petroleum jelly solidifying at 40 DEG  C., and 30 kg. of refined cylinder oil solidifying at -10 DEG  C.  In a second example, a solution of vacuum-steam-distillate from crude montan wax solidifying at 30 DEG  C. is dissolved in a mixture of alcohol and benzene, naphthalene is added at 30 DEG  C., and the solution cooled to 0 DEG  C. and filtered.  The filter cake is washed with precooled alcohol benzene and pure alcohol, and then treated with steam to remove alcohol and naphthalene; refined montan wax remains, which may be decolorized by decolorizing powder.
Patent GB-868429-A (GB)
Title: Improvements relating to topping knives as used in beet topping machines and like agricultural implements
IPC: A01D23/02
Filed: 1959-03-03
Abstract: 868,429. Beet-toppng machines. CATCHPOLE ENGINEERING CO. Ltd., and DONALDSON, E. Dec. 9, 1959 [March 3, 1959], No. 7363/59. Class 6(3). In a topping-knife of the kind having a row of tines 7 along the back of the knife, the tines are carried on a bar 6 which is a separate entity from the knife-blade 1, the bar being detachably mounted on the knife. The knife comprises three parts, a carrier-bar 2, Fig. 3, having holes 5 through which bolts may pass to secure the blade, Fig. 2, and tine bar, Fig. 1, these having corresponding holes 4, 9 for the purpose. The lug 9 securing the tine-bar to the assembly is stepped up to pass over the blade. The tine-bar also carries a pair of integral jaws 10, 11 at its further end to locate the blade 1 therebetween.
Patent GB-527628-A (GB)
Title: Improvements in or relating to thermionic valve circuit arrangements
IPC: H05K9/00
Filed: 1939-03-09
Abstract: 527,628. Thermionic valve circuits. HARDWICK, J. March 9, 1939, No. 7578. [Class 40 (v)] In thermionic valve apparatus decoupling of an electrode or electrodes of one or more of the valves is effected by a condenser connected by a screened lead, the inner conductor of which connects to a point in the external circuit of the valve electrode and to one electrode of the condenser while the screening sheath is connected to the other condenser electrode and earthed adjacent the valve. The invention may be applied to the anode decoupling condensers associated with a high frequency panel in which the valves and associated components are compactly assembled in a metal screening box. The end of the outer conducting sheath at the condenser may be arranged to shield the condenser terminal to which the inner conductor is connected.
Patent GB-115514-A (GB)
Title: Improvements in or relating to the Forging of Crank Shafts.
Inventor: BREARLEY HARRY
IPC: B21K1/06
Filed: 1917-05-26
Abstract: 115,514. Brearley, H., and Ayres, W. H. May 26, 1917. Addition to 104,268. Shafts.-In forging multiple crank-shafts for aeroplane or other internal-combustion engines, the method described in the parent Specification is modified by forging the crank-webs from the arms while in the embryo form produced by the dies 1, 2, Fig. 1. For this purpose, dies 3, 4 act in turn on the arms, flattening those parts not required for the crankwebs. In a multiple-of-three cylinder crankshaft, preferably only the two arms having separated webs are forged at this stage and the third web in forged to leave a central double web by the dies 5 - - 8 as shown in the parent Specification. In either case, the ends of the shaft are forged as before.
Patent GB-478466-A (GB)
Title: Attachment to billiard tables for the returning and collecting of balls
IPC: A63D15/00
Filed: 1937-03-16
Abstract: 478,466. Billiard tables. TUCKER, J. R. March 16, 1937, No. 7606. Addition to-359,293. [Class 132 (ii)] In the billiard or like table claimed in the parent Specification, the pockets b, c, c<1> shown in Fig. 1 of that Specification are made from rubber or textile fabric.
Patent GB-764742-A (GB)
Title: Shifting registers
IPC: G11C19/12
Filed: 1955-03-16
Abstract: 764,742. Pattern-movement stepping registers. NATIONAL CASH REGISTER CO. March 16, 1955 [April 12, 1954], No. 7621/55. Class 106 (1). [Also in Group XXXIX] A shifting register comprises serially connected electric bi-stable state elements each including a pair of A.C. paths having opposite conducting states, the paths being triggered each to its opposite state when a voltage pulse is supplied to a trigger input, and transfer means, connected between each pair of consecutive elements, conditioned by the states of the A.C. paths such that, upon the application of a voltage pulse to a shift pulse input, any succeeding element having an opposite conducting state to its preceding element is triggered to the conducting state of the preceding element. The stages Al, A2, A3 of the shifting register shown each comprise a ferro-resonant flip-flop circuit comprising two conductive paths connected through a capacitor such as C3 to A.C. supply line 1. Paths Pa, Pb, of stage A1, comprise respectively inductors L1, L2, having windings 5, 6 on cores 7, 8, and capacitors C1, C2. The reactance of C3 is such that only one of the paths is in a resonant, highly conductive condition, the condition being switched to the other path by binary - digit - representing trigger pulses applied to further windings on cores 7, 8 from terminals 11, 12. Stages A2, A3 are similar but have single trigger inputs 26, 42 connected to windings on both cores, the triggering being assisted by inductive " memory circuits such as 29a, 29b. When a stage is in the " 1 " condition (high current in Pb, Pbl or Pb<SP>11</SP>) a lamp such as 47 is lit, and the stages may be reset to zero by switches 50. For controlling shift, similar paths of each pair of adjacent stages are connected to oppositely wound primaries (e.g. 15, 17) of a transformer T1, T2, &c. whereby if the stages are in unlike conditions an R.F. output is induced in the secondary (e.g. 33) which opens a neon gate G1, G2, &c. to allow the next shift pulse on line 21 to pass to the input 26, 42, &c. and switch over the higher of the pair. The stages may be connected in a ring, the last stage being coupled to stage A1 which would then have a single trigger input.
Patent GB-580527-A (GB)
Title: Improvements in or relating to electrical circuit arrangements for effecting integration and applications thereof
IPC: H03K4/20
Filed: 1942-06-05
Abstract: 580,527. Thermionic valve circuits. BLUMLEIN, D. (Representative of BLUMLEIN, A. D.). June 5, 1942, No. 7712. [Class 40 (v)] Voltages are integrated in a circuit comprising in series the source to be integrated, a first impedance, a capacity and a second impedance with the input and output circuits of a valve associated with the impedances and the condenser providing negative feedback. Fig. 2 shows impedances 1, 3 and a valve 4 with the condenser 2 providing feedback. If, as shown, the source is constant the voltage developed in the output circuit will vary linearly with time. Fig. 4 shows an arrangement with a further source of voltage and a further impeddance which constitute with the capacity 2 and impedance 3 a second integrating circuit so that the output represents the sum of the time integrals. The further impedance is constituted by the anode /cathode path of the valve 12 and voltage is applied through anode 13 to render the valve non-conducting. A sawtooth waveform may be generated by periodically returning the integrated voltage to some predetermined value. Fig. 2 shows a pentode with the screen and suppressor grids fed by a potentiometer 7, 8, 9 and a diode 11 arranged to limit the potential of the anode of the valve 4 associated with the network 1, 2, 3. In this arrangement when the anode voltage falls to a value such that the operating point is on the knee of the characteristic screen current increases due to transitron action thus cutting off the anode current and reducing the screen voltage and increasing the anode voltage. Pulses delayed by a controllable time may be generated from applied pulses by arranging that a pulse is generated when the anode of the valve 4 falls to a predetermined value. With a plurality of integrating circuits a time delay inversely proportional to the sum of the applied voltages may be obtained. The delayed pulse may be generated by causing the anode voltage of the valve 4 to trigger a multivibrator. Reference has been directed by the Comptroller to Specification 575,250.
Patent GB-432817-A (GB)
Title: Improvements in or relating to auxiliary charge admission means for internal combustion engines
IPC: F02M25/022
Filed: 1934-03-12
Abstract: 432,817. Moistening charge. POLLARD, J., Lynberis, Glenville Avenue, Lutterworth Road, Blaby, near Leicester. March 12, 1934, No. 7781. [Class 7 (ii)] A device for super-heating steam on its way to the induction pipe comprises a metal body 1 adapted to be clamped by its base 2 to a source of heat-e.g. the exhaust pipe-, an inlet 7 and an outlet 9 for steam or vapour and a valve 15 adjustably throttling the passage therethrough. This passage is formed by an annular partition 3, the inlet and outlet 7, 9 leading to opposite sides thereof, which are connected by a hole 16. The position of the valve 15 is adjusted by rotating a screw 14 by a spring arm 19 locked by engagement with notches 18. The moisture is preferably drawn from the top of the radiator and delivered to the induction pipe by radial or tangential bores in a plate sandwiched between the carburetter and induction pipe flanges.
Patent GB-502586-A (GB)
Title: Improvements in and relating to electric recording and reproducing devices
IPC: G11B25/04
Filed: 1938-03-14
Abstract: 502,586. Electric recording and reproducing apparatus. RYSICK, A., and KOSMOGRAPH DIKTIERMASCHINENFABRIK GES. March 14, 1938, No. 7839. [Class 40 (iv)] In an electric recording and reproducing device including a microphone, an amplifier, a loud-speaker, and a pick-up having both recording and reproducing members, the change-over switching arms are operated by relays and are arranged in a chamber at a substantial distance from the other parts of the device. The pick-up 14, Fig. 4, is shown twice, acting as a reproducing device on the left and as a recorder on the right. The microphone 112 is connected to a battery 118 provided with a charging device. The loud-speaker is shown at 126. The amplifier includes three valves 34, 35 and 38, the valve 35 being for rectifying purposes. When recording, the switches 15, 69, 90, 100, 119 and 123 are all in the position shown in dotted lines, and when reproducing they are in the positions shown in full lines. The switch 15 is operated by hand, and the others by relays 92 and 91, controlled by the switch 15. The switch 90 connects the transformer 58 either to the loudspeaker 126 whilst reproducing, or to the pickup 14, rectifier 129 and milliammeter 132 when recording. The milliammeter may be adapted to be used as a voltmeter to show the condition of the battery 118, the necessary connections being controlled by a switch, not shown. Instead, of charging the battery 118 only when reproducing, the switch 123 may be dispensed with and the battery may be charged on the buffer principle by means of the circuit shown in Fig. 4a, including a rectifier 120, a choke 143 and condensers 144.
Patent GB-312042-A (GB)
IPC: F04B49/24
Filed: 1929-03-11
Abstract: 312,042. Ingersoll-Rand Co., (Assignees of Metzgar, C. W.). May 18, 1928, [Convention date]. Pegulating compression.-A valve H and valve seat F are provided in the inner wall of a compressor head and valve lifter Y by which the valve can be held permanently open, slides on a projection P on the seat ; a flat spring S is interposed between the outer wall and the projection P to maintain the valve and lifter in assembled position. The lifter is operated by a diaphragm g subject to fluid pressure e.g. from the receiver, through a sliding sleeve p acting on lugs d on the sleeve b of the lifter: these lugs slide on the sides of the spring S and prevent rotation. A pin e holds the sleeve b in place during assemblage.