baber/WOPTO huggingface dataset:
Patent GB-1016936-A (GB)
Title: Liquid dispenser
IPC: B05B11/00
Filed: 1963-08-08
Abstract: 1,016,936. Reciprocating pumps. CALMAR Inc. Aug. 8, 1963 [March 21, 1963], No. 31425/63. Heading F1A. In a liquid-dispenser including a reciprocating piston pump of known type having a reciprocable unit 35, Fig. 1 and a stationary unit 12 mounted on a container neck 86, Fig. 2 (not shown), positive coupling means 90, 95 prevent relative rotation between the stationary unit and the container neck. The glass container 85 has screw threads 87 to receive screw threads 22 of the metal or plastic cap 21. The stationary unit has a barrel flange 20 e.g. of polyethylene or polypropylene having an annular lip 96, Fig. 4 (not shown), and an annular skirt 94 carrying teeth 95 which engage teeth 90 when cap 21 is tightened. Lip 96 engages groove 92 to form a seal. In an alternative arrangement the container cap, which can be moulded with the barrel flange snaps on to the container neck.
Patent GB-1081540-A (GB)
Title: Direct-current driving installation with constant-current circuit
IPC: H02P5/685
Filed: 1966-07-13
Abstract: 1, 081, 540. Automatic current control. LICENTIA PATENT VERWALTUNGS G. m. b. H. July 13, 1966 [July 13, 1965], No.31511/66. Heading G3R. [Also in Division H2] In a ship propulsion system, motors 10, 11 are supplied with constant current through rectifiers 14, 15, 16 from diesel-driven generators 17, 18, 19 of the synchronous type. A control signal representing the deviation of the actual motor current from a desired value is supplied simultaneously to exciters 27, 28, 29. A braking resistor 33 is connected into the constant-current circuit when the motors regenerate for braking the generator excitation being reduced for a short period just before switch 34 is closed at the end of a braking action. Each of the generators can be disconnected from it associated rectifier and connected to constantvoltage mains 38, the appropriate exciter then being disconnected from the constant-current regulator and connected to a constant-voltage regulator. An auto transformer or a Boucherot circuit may be connected between the mains 38 and one of the rectifiers 14-16.
Patent GB-991366-A (GB)
Title: Radio navigation receiver arrangement
Inventor: CLEAVER RICHARD FRANCIS
IPC: G01S3/52
Filed: 1961-09-01
Abstract: 991,366. Measuring phase differences. STANDARD TELEPHONES & CABLES Ltd. Sept. 1, 1961, No.31549/61. Heading G1U. [Also in Division H4] To reduce spurious phase shifts between two signals in phase difference measuring apparatus, each signal is used to modulate a carrier wave in a balanced modulation and the outputs therefrom fed to an indication sensitive to the phase difference between the two signals. When applied to direction finding apparatus (see Division H4), one balanced modulation comprises a synchro 11 having a 3-phase wound stator and a rotor carrying a 50 c/s current and one of the signals is generated by rotating the rotor thus producing the carrier suppressed output at the stator terminal shown in Fig. 2a. The second signal, produced by rotation of the antenna system 1 and 2 modulates a 50 c/s current in a balanced modulation 24, to produce an output waveform similar to that of Fig. 2a. The two carrier suppressed waveforms are then compared in a second 3-phase synchro 15 wherein the rotor thereof takes up a position indicative of the phase difference between the two signals. Specification 991,365 is referred to.
Patent GB-911205-A (GB)
Title: Photographic camera
IPC: G03B13/02
Filed: 1959-09-16
Abstract: 911,205. Photographic cameras; parallax cam formation. AGFA A.G. Sept. 16, 1959 [Sept. 24, 1958], No. 31642/59. Class 98 (1). In a photographic camera or a cinematograph camera having a viewfinder with a field limiting means movable in the field of view by means of the camera lens for compensating the parallax between the camera lens and the viewfinder, a light screening element is arranged to extend between the outer margin of the field limiting means and a portion of the camera body limiting the path of the field limiting means on movement of the said means, in order to prevent the passage of extraneous light. As shown, a parallax compensating slide 32 positioned immediately behind a front viewfinder window 5 is arranged to be adjusted by a cam 9 on a focusing ring 4 through two rigidly coupled levers 11, 13 pivoted at 12 and through a spring urged slide rod 20. To prevent extraneous light from entering the viewfinder when the slide 32 is lowered, a light screening flap 37 pivoted at 36 is maintained in engagement with a flange 34 of the slide by a spring urged mask 38, also pivoted at 36. When the camera is used with a telephoto lens, the mask 38 is pivoted down into a position parallel with the slide 32 by means of a lever 42 and a winding knob 8, the knob 8 being held in position by spring detent means and the flap 37 being prevented from descending into a position in which it would obscure the field of view by the engagement of a rearward extension thereof with a cross piece 28b of the viewfinder housing. The front view-finder window 5 may carry a distance scale 50 and the slide 32 a co-operating index 51, as shown, or the scale may be visible through a window in the slide. In a modification (Figs. 6 and 7, not shown), the mask 38 is pivoted on the slide 32 itself, as a result of which, parallax compensation for a telephoto lens is obtained in the same way as for the lens shown, a cam corresponding to the cam 9 being provided on the telephoto lens for this purpose. In this case, extraneous light is prevented from entering the viewfinder by means of a sheet of flexible material between the flange 34 and the cross piece 28b. The slide 20 and control levers may be arranged on a side wall of the camera instead of on the front wall as shown.
Patent GB-821299-A (GB)
Title: Electrical two part couplings
IPC: H01R13/24
Filed: 1957-10-10
Abstract: 821,299. Two-part couplings. BENDIX AVIATION CORPORATION. Oct. 10, 1957 [Nov. 2, 1956], No. 31740/57. Class 38 (1). A radio screened two-part coupling for, say, a sparking plug comprises a metallic shell 3 containing a tubular insulator 5 supporting and insulating a central electrode 7 in contact with a plug assembly electrode 11 connected to the cable 32, 34, the lower end of which is enclosed in a second tubular insulator 58 and rubber packing 70, the latter being compressed by a spring 82. A cap 24 carrying a flexible conduit 22 is attached to the shell 3 by a threaded nut 18. A seal between insulators 5, 58 is made by a rubber-like section 90 compressed by a spring 94. The construction enables the plug assembly to be removed as a complete unit. Specification 684,804 is referred to.
Patent GB-731301-A (GB)
Title: Improvements in colour photographic materials
IPC: G03C7/392
Filed: 1952-12-15
Abstract: Sec.-Undecylhydroquinone is prepared by adding zinc chloride to a heated mixture of hydroquinone and undecene-1, and hydrolysing the catalyst with dilute hydrochloric acid. 2-Methyl-5-(2-octadecyl)-hydroquinone is similarly prepared. Sec.-Undecylquinone is prepared by adding concentrated sulphuric acid dropwise to an aqueous-acetone solution of sec.-undecylhydroquinone, and then adding aqueous sodium dichromate solution dropwise. n-Octadecylquinone is similarly prepared.  Potassium sec.-undecylhydroquinonemonosulphonate is prepared by adding an ethanol solution of sec.-undecylquinone dropwise to an aqueous solution of sodium acetate, acetic acid, and sodium bisulphate, evaporating to dryness under vacuum, dissolving the residue in water, and adding potassium chloride.  Potassium n-octadecylhydroquinone-x-sulphonate and potassium 2 - methyl - 5 - sec. - octadecylhydroquinone-x-sulphonate are similarly prepared.  5 - Sec. - octadecyl - 2 - (2 - sulpho - tert.-butyl)-hydroquinone (potassium salt) is prepared by reacting together 2-(2-(sec.-octadecyl)-hydroquinone and sodium 2-methylpropenesulphonate in presence of concentrated sulphuric acid and adding saturated potassium chloride solution to an aqueous solution of the product.  2 : 5 - Bis - {b  - [3 - (p. - tert. - amylphenoxy)-x - sulpho] - benzamidoethyl} - hydroquinone is prepared by hydrolysis of 2 : 5-bis-{b -[3-(p-tert. - amylphenoxy) - x - chlorosulphonyl]-benzamidoethyl}-hydroquinone, itself prepared by the reaction of 2 : 5-bis-(b -aminoethyl)-hydroquinone dihydrobromide and x-chlorosulphonyl - m - (p1 - tert. - amylphenoxy)-benzoyl chloride in aqueous acetic acid containing sodium acetate.  2-[21-(2111 : 4111-Di-tert. amylphenoxy) - 5 - (3111 : 5111 - disulphobenzamido) - benzamido] - hydroquinone and 2-[21-(2111 : 4111 - di - tert. - amylphenoxy) - 5 - (3111 : 5111 - dichlorosulphonylbenzamido) - benzamido]-hydroquinone are similarly prepared.  2 - Methyl - 5 - (2 - octadecyl) - quinone is prepared by oxidizing 2-methyl-5-sec.-octadecyl-hydroquinone with acidified sodium chlorate in presence of vanadium pentoxide. Specifications 2562/13, [Class 98(ii)], 524,554, 524,555, 541,589, [all in Group XX], and 557,750 are referred to.
Patent GB-469164-A (GB)
Title: Improvements in devices for preventing the escape of oil from railway vehicle axle boxes
IPC: B61F15/22
Filed: 1936-11-20
Abstract: 469,164. Railway-vehicle axle-boxes. FRIEDMANN, L., (trading as FRIEDMANN, A., [Firm of]). Nov. 20, 1936, No. 31814. Convention date, March 30. [Classes 12 (i) and 12 (iii)] Each end of an axle-box is provided with a recess 12, 15 which prevents oil escaping through the axle openings. Oil accumulating in this space is removed by the thrower ring 5 which projects it against the surface 1 and hence returns it to the oil chamber 23. The main supply of oil is lifted by the thrower ring 4. In a modification, this ring fits closely against a surrounding casing, oil being thus sucked through a hole which communicates with the main oil supply. In a further modification, a separate thrower ring is fitted in each end of the box.
Patent GB-287226-A (GB)
Title: Improvements in or relating to processes for the recovery of phenol from waste-water containing ammonia
IPC: C07C37/00
Filed: 1926-12-15
Abstract: 287,226. Raschig, F. Dec. 15, 1926. Phenol is recovered from the waste water of gas-works &c. by means of a suitable hydrocarbon such as benzol in a vessel filled with Raschig rings of 15 mm. diameter and of corresponding axial length. The phenol and benzol are separated by distillation, and the waste water is heated by being utilized for condensing the benzol vapour. An example is given in which benzol is caused to flow from bottom to top and waste ammoniacal water in the opposite direction through a counter-current apparatus of conventional construction filled with rings of the above size. After distilling off the benzol impure phenol containing a small proportion of naphthalene, pyridine and pyrrole is obtained, which can be purified in the usual manner. Specification 6288/14, [Class 55 (ii), Gas manufacture &c.], is referred to.
Patent GB-393193-A (GB)
Title: Improvements in and relating to valves for piping
IPC: G01L19/08
Filed: 1932-11-11
Abstract: 393,193. Stop valves. INTERNATIONAL GENERAL ELECTRIC CO., Inc., 120, Broadway, New York, U.S.A. -(Assignees of Allgemeine Elektricitõts- Ges.; 2, Friedrich Karl-Ufer, Berlin.) Nov. 11, 1932, No. 31959. Convention date, Nov. 11, 1931. [Class 135.] Valves fitted with independently-actuated supplementary valves.-A parallel slide stop valve comprises a straight-through passage a and two similar independent manually-operated closure members h, i for effecting a closure alternatively. By this means either member can effect the closure and the other can be removed for repairs, or, if required, used in a further valve casing in the piping system.
Patent GB-485632-A (GB)
Title: Improvements in garden shears particularly applicable for trimming hedges
IPC: A01G3/047
Filed: 1936-11-23
Abstract: 485,632. Multiple - toothed clippers. LORD, J. Nov. 23, 1936. No. 31973. [Class 131] In hedge-trimming shears wherein multiple cutting members a are carried by co-operating bars A, A<1> reciprocated by handles B, the members a are mutually inclined so that when they are out of contact they lie in planes intersecting on a line y between the roots and the tips. The bars A, A<1> are identical in form.
Patent GB-917425-A (GB)
Title: Accumulator fuel injection system for internal combustion engines
Inventor: GROSCHEL ERNEST RALPH
IPC: F02M47/02
Filed: 1959-09-19
Abstract: 917,425. Fuel injection systems. RUSTON & HORNSBY Ltd. Sept. 15, 1960 [Sept. 19, 1959], No. 31983/59. Class 7(3) In an accumulator type injector system with fuel fed by a pump 11 past a non-return valve 13 to an accumulator chamber 14 formed around the injector valve 21, the pressure in the chamber 21 is controlled by a plunger 25 loaded by liquid under pressure supplied to a chamber 19 by a subsidiary pump 16. During the delivery stroke of pump 11 the valve 21 is held closed by the pressure acting on the top thereof, the plunger 25 yielding to absorb the fuel delivered into chamber 14. When the pressure in pipe 12 is released valve 21 opens and fuel is injected until plunger 25 returns against its initial stop. The pump 16 may be controlled by the pressure in its delivery pipe 17.
Patent GB-1057989-A (GB)
Title: An insulated lead-in device for electrical conductors, for containers forming part of submarine cable systems
IPC: H01B17/30
Filed: 1964-08-06
Abstract: 1,057,989. Carrying conductors through partitions. FELTEN & GUILLEAUME CARLSWERK A.G. Aug. 6, 1964 [Nov. 12, 1963], No. 31983/64. Heading H2E. An insulating lead-in device carrying an insulated conductor into a box 15 comprises insulating tubular members 14 mounted on said box coaxially with a bore therein, and plastically deformable metal washers 13, the parts being bolted together. A single nut and bolt 11, Fig. 1, may be used, and may form the current carrying member, in which case the bolt is surrounded by an insulating sleeve 16, the washers being arranged at the ends of the members 14, which are of ceramic material, for sealing purposes. The washers may be of copper, aluminium, silver or gold, and the nuts and bolts of beryllium copper alloy or hard steelwith a coating of copper, aluminium, silver or brass. In a modification, Fig. 3, the inner conductor 28 may have a plate-shaped enlargement 29 which is clamped between tubular ceramic members 31 by bolts 34 to compress washers 32. In further embodiments (not shown) for use with a coaxial cable, further ceramic tubes and metallic washers are provided to form water-tight seals between both conductors and the box.
Patent GB-752775-A (GB)
Title: Temperature measuring devices
IPC: G01K5/50
Filed: 1954-11-05
Abstract: 752,775. Thermometers. SULZER FRERES SOC. ANON. Nov. 5, 1954 [Nov. 6, 1953], No. 32087/54. Class 97 (3). A device for measuring the temperature of a fluid flowing through a thick-walked pipe 1 comprises a thinner-walled pipe 2 connected at both ends to the pipe 1 so that some of the fluid flows through pipe 2, and a temperature sensitive element 3 for measuring the wall temperature of pipe 2. To promote flow of fluid through pipe 2, a constriction 4 may be placed in pipe 1 ahead of the inlet of pipe 2. Alternatively the outlet of pipe 2 may open' into a constricting throat of pipe 1, or again the inlet end of pipe 2 may be extended into pipe 1 and face upstream. Pipe 2 may include means such as expansion bellows to allow for differences in thermal expansion between it and pipe 1.
Patent GB-1112153-A (GB)
Title: Improvements in or relating to pots for horticultural plants
IPC: A01G9/10
Filed: 1965-07-27
Abstract: 1,112,153. Plant pots. E. D. DELANEY. 23 Aug., 1966 [27 July, 1965; 12 Nov., 1965; 15 March, 1966], Nos. 32101/65, 48099/65 and 11272/66. Heading A1E. A plant pot comprises a first compartment 11 to contain the plant and soil, and a second compartment 15 to contain liquid, the compartments being separated by a common wall at or near the bottom of which are holes 18 to allow flow of liquid and air between the compartments, the bottom of the first compartment being provided with a tubular element 28 one end of which is open within the first compartment above the level of holes 18 and the other end of which is open externally of the pot. The element 28 is formed by extending the base 17 of the second compartment to project into compartment 11. A tube 21 is provided for introducing liquid into compartment 15 and an air vent 26 closable by plug 27 is provided. The compartments may be defined by inner and outer containers 12, 16 as shown or the second -compartment may be located at the outside of the first compartment and extend the full height thereof.
Patent GB-434632-A (GB)
Title: Electric wave transmission networks
IPC: H03H7/075
Filed: 1934-11-08
Abstract: 434,632. Impedance networks. STANDARD TELEPHONES & CABLES, Ltd., 63, Aldwych, London.-(Assignees of Bode, H. W. ; 278, West 4th Street, New York, U.S.A.) Nov. 8, 1934, No. 32124. Convention date, Jan. 31. [Class 40 (iii)] A dissipative arm is added to a filter section of the ladder type in order to diminish variation of the attenuation constant throughout the pass band. Owing to dissipation in coils and condensers the attenuation is not zero in the transmission range, but rises in value as the cut-off frequencies are approached. In the case of a low-pass constant-k pi-section, Fig. 4, the half-sections C, L may be regarded as being terminated mid-series on their inner sides and in this case a shunt conductance G is connected to the middle point 15 of the series arm. In the case of a tee-section, Fig. 8, the half-sections L, C are regarded as being terminated mid-shunt and in this case a series resistance R is inserted as shown. It is shown in the Specification that the resulting insertion loss, provided it be small, is proportional to the mid-series image impedance in Fig. 4 and to the mid-shunt image admittance in Fig. 8, the networks of Figs. 4 and 8 being electrically equivalent to one another. The best values for G and R are deduced by showing that the above arrangements affect the attenuation characteristic in the same way that an m-derived modification affects the impedance characteristic of the prototype filter. Band-pass filters are similarly modified, Figs. 9 to 16 (not shown) ; and Fig. 23 shows an m-derived low-pass filter in which the series inductance L1 is tapped to accommodate the shunt conductance G. Mutual inductance may be introduced between the inductances L of Fig. 4, Fig. 7 (not shown). Mutual inductance may also be introduced in order to avoid the necessity for tapping a series impedance such as L, L, Fig. 4, at the point 15 ; thus the series impedance Z1 of a pi-section, Fig. 18, may be shunted by a pair of close-coupled coils l, l, having a shunt conductance G. A tee-section may be modified in an analogous manner, Fig. 19 (not shown). The section shown in Fig. 4 may be modified by the introduction of an inductance or anti-resonant shunt l, c tuned to the cut-off frequency in series with G, Fig. 26, so that the added branch l, c, G attenuates in the middle of the pass range but not in the neighbourhood of the cut-off. Fig. 28 is an analogous modification of Fig. 8. The parts l, Fig. 26, and c, Fig. 28 may be omitted, Figs. 29, 30 (not shown).
Patent GB-410188-A (GB)
Title: Improvements in or relating to a can body for a sanitary can
IPC: A61J1/00
Filed: 1932-11-14
Abstract: 410,188. Seamed joints. FARRER, J. O., 27, Chancery Lane, London.-(Continental Can Co., Inc. ; 100 East 42nd Street, New York, U.S.A.) Nov. 14, 1932, No. 32154. [Class 83 (iv).] A joint for the side seam of a can body comprises a seamed portion 6 and overlapping pieces 7, 8 at each end which are curved away from the end of the can, both the lock and lap parts of the joint being soldered. The shaping of the overlapping pieces 7, 8, ensures that during the formation of the cover-engaging flange no strain is introduced in the soldered joint in the first part of the flanging operation, while during the final part the strain gradually shifts from the point 13 to the point 9. The end 15, Fig. 12, is secured by double seaming, the seaming being of constant cross section as a space for the flow of the metal 16 is provided by cutting away the pieces 7, 8. A sealing material is introduced into the double seam.
Patent GB-264300-A (GB)
Title: Improvements in and relating to dental drills and the like
IPC: A61C1/18
Filed: 1925-12-22
Abstract: 264,300. Nicolello, V. C. Dec. 22, 1925. Dental engines. - In a ball-bearing dental handpiece the shaft 9 rotates in bearings 18, 19 in a sleeve 20 carried by the wrist joint 1 of the engine, the bearings being adjustable by means of a bevelled ring 22 which is screwed on the shaft 9 and held in adjusted position by means of a lock nut 24 which is in turn engaged by the driving pulley 8 keyed to the shaft 9 and held by a grub screw 11. An external casing 25 is held in place by a union nut 26 engaging the sleeve 20. The tool 17 is held in a chuck 15 mounted within a rotary sleeve 16 which is secured to the forward end of the shaft 9 and is not in contact with the outer casing 25. The chuck is operated by a thrust piece 14 engaged by a rod 12 passing through the hollow shaft 9 and threaded at its lower end to engage the shaft. The wrist joint of the engine comprises an arm 1 pivotally mounted on a bolt 5 forming the extremity of a double articulation 7 carrying two pulleys 6. Rotation of the arm 1 is limited by stops 3, 4 on the bolt 5 and arm 1 respectively.
Patent GB-201512-A (GB)
Title: Yeast stimulant and process of manufacturing the same
IPC: A21D2/36
Filed: 1922-11-27
Abstract: 201,512. International Takamine Ferment Co., (Assignees of Takamine, J. and Fujita, N.) July 25, 1922, [Convention date]. Bread.-A yeast stimulant especially for use in making bread, is made by boiling bran in water, to which a small quantity of hydrochloric acid may be added, and filtering. The filtrate may be concentrated, either to a syrupy consistency, when sugar may be added, or to dryness. The extract is saccharified with diastase which has been freed from proteoclastic enzymes by precipitation with such salts as calcium chloride, iron sulphate, or aluminium chloride. Remaining proteoclasticenzymes may be removed by concentrating the diastase solution at 60‹ C. in vacuo to about onefifth of its original volume. A mixture of flour, bran extract, sugar, shortening, and water is allowed to rise for 2¢ hours, punched, allowed to rise for 1 hour, punched, allowed to rise for half an hour, again punched, allowed to rise for fifteen minutes, and baked. The Specification as open to inspection under Sect. 91 (3) (a) states that the bran extract may be employed without saccharification. This subject-matter does not appear in the Specification as accepted.
Patent GB-434098-A (GB)
Title: Improvements in or relating to pneumatic bags or mattresses
IPC: A47C27/08
Filed: 1933-11-21
Abstract: 434,098. Air mattresses. COW & CO., Ltd., P. B., Factory Square, Streatham Common, London, LANDAU, K., 7, Landesgerichtsstrasse, and SIEBEL, L., 8, Schottenring, both in Vienna. Nov. 21, 1933, No. 32506. Void [Abridged as open to inspection under Sect. 91 of the Acts, Dec. 10, 1934]. [Class 52 (iv)] An air mattress has its upper and lower internal faces connected by transversely arranged reeds b terminating short of the sides of the mattress. Diagonal reeds e may connect the transverse reeds b.