baber/WOPTO huggingface dataset:
Patent GB-999143-A (GB)
Title: Improvements in or relating to orthopaedic appliances
IPC: A61F2/60
Filed: 1962-06-12
Abstract: 999,143. Limb supports. C. R. TERRON. June 12, 1962 [June 9, 1961], No. 22621/62. Heading A5R. An orthopaedic limb appliance comprises two bars connected together for attachment one on either side of a limb joint to permit bending of the limbs about the joint, a member secured to one bar so that it can be brought into engagement with the other bar in either of two positions, one of which prevents articulation of the bars and the other of which limits articulation of the bars, and so that it can be moved out of engagement with the other bar to permit maximum articulation of the bars, and means to hold the member in the engaged or disengaged positions. The two bars A, B are connected together by a pivot pin C which in use is located adjacent the limb joint. Relative angular movement of the bars is limited in one direction by a stop D. A plate E is mounted on a pin F on the upper bar and has a pin G on which one end of an elastic strip J is secured. The plate E is so shaped that when the other end of the elastic strip is attached to a pin at the free end of the upper bar, it is held clear of the lower bar which is free to pivot relative to the upper bar as permitted by the stop D. Alternatively, the strip is secured to a pin at the lower end of the lower bar to secure the plate E so that either one side which is curved bears against the lower bar (Fig. 3) to prevent angular movement between the bars or another side which is angular bears against the lower bar to permit limited angular movement between the bars. In an alternative construction, bars 2, 3, 4 (Fig. 5) are interconnected to provide articulations at the hip and knee, parallel plates 8, 9 being riveted on each side of the upper end of the lower bar of each articulation. The upper bar of each articulation is pivoted on a pin 23, 30 between the plates and the adjacent ends of each bar at each articulation have complementary arcuate surfaces which bear against each other. A connecting plate 17, 18 associated with each articulation is pivoted on the upper bar and is secured by an elastic strip so that it bears against the lower bar to prevent articulation or permit limited articulation or so that it is disengaged from the lower bar to permit maximum articulation. At the ankle joint a foot supporting portion 6 carries parallel plates 10 on which the lower end of the leg support is freely pivotal, such movement being limited if desired by an elastic strip interconnecting the toe portion of the foot support with an adjustable pin on the leg support. The bars 3, 4 interconnecting the articulations each comprises two bars which are rigidly secured together with an adjustable overlap.
Patent GB-859933-A (GB)
Title: Improvements in or relating to signal controlled motor servo systems
Inventor: CHENG EDWIN STANLEY
IPC: H02P23/00
Filed: 1958-07-15
Abstract: 859,933. Control of A.C. motors. MARCONI'S WIRELESS TELEGRAPH CO. Ltd. April 9, 1959 [July 15, 1958], No. 22682/58. Class 38 (3). A control winding 3 for a two-phase servomotor is supplied from a source 5 of signal voltage through a two-stage, push-pull amplifier comprising transistors 6, 7, coupled through a transformer 8 with transistors 11, 12. Coupling between the motor windings 2, 3, when the motor is running may produce voltage "spikes" at the bases of the transistors 11, 12, and at the collectors of the transistors 6, 7. In order to prevent this, rectifiers 14, 15 are connected between a positive terminal 9 and the collectors of transistors 11 and 12 respectively. If either of these collectors becomes positive with respect to the terminal 9, the appropriate rectifier conducts and prevents rise of potential of the collector in question. As shown, the transistors are of the PNP type. If they are of the NPN type, the terminal 9 has negative polarity and the rectifiers are reversed.
Patent GB-162224-A (GB)
Title: An adjustable appliance for contracting piston rings of gas and oil and the like engines upon entry of pistons into cylinders
IPC: B25B27/12
Filed: 1920-07-30
Abstract: 162,224. Howe, R. S., and Ellis, G. W. July 30, 1920. Pistons.-An appliance for entering a piston in the cylinder of a gas or oil engine, consists of two V-bars A of square section, on which slide split tubes B, C drawn together by bolts D and nuts E. The piston rings are compressed by knife-edges G, carried by tubes F which are adjustable on the tubes B, C. Screws H serve to clamp the tubes F, B, C on to the bars A. The leading ends of the knife-edges G are bevelled, to enable them to enter the bevelled mouth of a cylinder.
Patent GB-981251-A (GB)
Title: Process for preparing a silver halide-gelatin coagulum
IPC: G03C1/04
Filed: 1962-06-13
Abstract: 981,251. Photographic emulsions. INTERNATIONAL POLAROID CORPORATION. June 13, 1962 [June 19,1961], No. 22720/62. Heading G2C. Photographic silver halide-gelatin dispersions are flocculated by adding thereto a watersoluble polyvinyl heterocyclic polymer and a hydrogen bonding agent which is an aromatic acid, an aromatic hydronyl compound, an amine, a thiocarbanilide or a 2-mercaptobenz-thiazole so as to precipitate the polymer as a complex, together  with the gelatin and silver halide. The precipitate may then be washed, preferably first with alkali and then with water, and redispersed in an aqueous colloid. The polymer may be one having oxazine, oxazoline, oxazolidinone or pyrrolidone groups attached to the vinyl chain. The hydrogen bonding agent may be phenol, resorcinol, phloroglucinol, benzoic acid or phthalic acid. It may be added as a salt such as sodium phenate, sodium benzoate or potassium acid phthalate and the mixture acidified e.g. with sulphuric acid to precipitate the insoluble polymer complex.
Patent GB-227534-A (GB)
Abstract: 227,534. Irwin, B. Oct. 19, 1923. Optical - projection apparatus. - A screen for protecting colour slides from the heat of a lantern comprises a transparent vessel m which is in communication with a tank m<1>. A flange m<4> prevents the escape of light from the slot into which the screen m is inserted.
Patent GB-227861-A (GB)
Abstract: 227,861. National Cash Register Co., (Assignees of Shipley, B. M.). Jan. 19, 1924, [Convention date]. The Specification, as open to inspection under Sect. 91 (3) (a) describes the following mechanism in connection with a cash register adapted to deal with single-item and multiple-item transactions. This subject-matter does not appear in the Specification as accepted. Type-wheel actions.-The clerk's initial typewheel is set directly from the clerk's bank of keys by means of a lever 154, Fig. 18 (Cancelled), pivoted at 155 and rocked differentially in either direction by the pins 153 on the key stems. The upper end of the lever is connected to a lever 157 linked to the clerk's type wheel. The impression hammers are automatically controlled by means forming the subject-matter of Specification 249,545 and the voucher and slip feeding arrangements are described in Specification 248,763. Ink-ribbon mechanism. -A continuous inkribbon 714, Fig. 29 (Cancelled), travels about the type-wheels and is capable of receiving a short feed normally and a long feed. When the seam approaches either of the printing lines one of two buttons 754 on the ribbon displaces a pivoted yoke so as to remove a pin thereon from the path of the actuating-pawl lever and allow the pawl a longer travel. The lever is rocked by a projection 765 on the push-rod 605, Fig. 25 (Cancelled), through a pin 732 carried by the pawl lever and controlled by the spring-influenced lever 733.
Patent GB-1411009-A (GB)
Title: Recovery of scrap metals
IPC: C22B7/00
Filed: 1973-05-14
Abstract: 1411009 Recovering metals from scrap I M I REFINERY HOLDINGS Ltd 3 May 1974 [14 May 1973] 22786/73 Heading C7D Copper coated aluminium scrap is treated with an aqueous ammoniacal solution of an ammonium salt (e.g. carbonate or sulphate) to dissolve the copper and leave the aluminium. The leachant is preferably oxidized during or away from the leaching process (e.g. by blowing air, oxygen, ozone or H 2 O 2  into the solution). The scrap is preferably shredded prior to treatment which also removes the insulation and is preferably tumbled while in contact with the leachant. Copper is recovered from the leachant by a known method.
Patent GB-1474519-A (GB)
IPC: C12N9/18
Filed: 1973-05-14
Abstract: 1474519 Hydrolysis of 3-acyloxymethylcephalosporin GLAXO LABORATORIES Ltd 6 May 1974 [14 May 1973] 22799/73 Heading C2C [Also in Division C3H Hydrolysis of 3-acyloxymethyl-ceph-3-em-4- carboxylic acid to 3-hydroxymethyl analogues is catalysed by an esterase produced by culturing a yeast microorganism or a mutant thereof of the genus Rhodotorula. The starting material is preferably a compound of Formula (I) wherein R<SP>1</SP> is an amino or blocked amino group, R<SP>2</SP> is an H atom or an alkyl, alkoxy, alkylthio or alkanoyl group of not more than 8C atoms; R<SP>3</SP>CO is an acyl group of 2-20C atoms; and B is >S or >S-#O. Specified microorganisms include Rhodotorula rubra, Rhodotorula glutinis and Rhodotorula graminis.
Patent GB-381657-A (GB)
Title: Improvements in electric contacts for switches, fuse-holders and the like
IPC: H01H1/42
Filed: 1931-08-12
Abstract: 381,657. Switch and fuse contacts. GENERAL ELECTRIC CO., Ltd. and QUANCE, F. G., Magnet House, Kingsway, London. Aug. 12, 1931, No. 22811. [Class 38 (v).] A contact adapted to engage a U-shaped contact 9 comprises two strips 11, the ends 7 of which are bent backwards to form contacting surfaces. Projections 2, 6 limit the inward movement of the strips when the contacts engage, and the portions 7 are then pressed against bowed portions 11 between the projections.
Patent GB-944480-A (GB)
Title: Improvements in incinerators
Inventor: MORTON KENNETH RICHARDSON
IPC: F23G5/16
Filed: 1961-06-23
Abstract: 944,480. Consuming smoke; incinerators. THOMAS McDOWELL Ltd. June 21, 1962 [June 23, 1961], No. 22827/61. Headings F4B and F4W. In an incinerator, a secondary smoke combustion chamber is arranged above the primary combustion chamber, and a heat exchanger is located above the secondary combustion chamber. The primary combusion chamber 1 has a counter-weighted charging door 3, grate bars 2, a cleaning door 4 and secondary air inlets 16 fed by a fan 21. The smoke combustion chamber 10 has an oil-fired burner 12 and a hopper 22 for collecting dust. The heat exchanger 13 is mounted in the flue stack 5 above a damper 17, and a duct 14 with a damper 15 by-passes the heat exchanger 13, which may produce steam or hot water or air. A baffle 11 is arranged in the smoke combustion chamber. In a modification, Fig. 3, not shown, a horizontal baffle projects from the front wall of the secondary combustion chamber opposite an oil burner mounted on the rear wall. An observation window, not shown, in the smoke combustion chamber may be provided to facilitate adjustment of the air supply to the burner, and the secondary air supply.
Patent GB-744198-A (GB)
Title: Electric wave transmission networks employing transistors
IPC: H04B1/16
Filed: 1953-08-19
Abstract: 744,198. Impedance networks. WESTERN ELECTRIC CO., Inc. Aug. 19, 1953 [Aug. 26, 1952], No. 22868/53. Class 40 (8). [Also in Group XL (c)] In a filter network a reactive impedance branch is associated with a three terminal transistor circuit (see Group XL (c)) to compensate for loss in the branch. The negative impedance transistor circuit N1, Fig. 2, is coupled to the element 30 at terminals 15, 16 and 17 to give an improved band-pass curve, Fig. 3 (not shown). An impedance transformation may be effected by adding capacitors between the inductors L2 and earth so that the transistor circuit N1 works into a higher impedance, Fig. 4 (not shown). In a modification, Fig. 6 (not shown), the terminal 16 is connected tn a tap-on inductor L3, a single capacitor replacing the capacitors C3A, C3B. A high pass filter, Fig. 7, comprises equal capacitors C5 and shunt inductor L5. The transistor circuit N2 is coupled to the two ends and a tap, preferably at the centre, of inductor L5. In a band-pass filter, Fig. 8, comprising two sections two negative impedance transistor circuits N3, N4 are employed to give an improved characteristic, Fig. 10 (not shown). The negative impedance N5 may be applied to a series element, Fig. 11, of a band-stop filter. Specification 694,021, [Group XL (c)], is referred to.
Patent GB-1124282-A (GB)
Title: Fluid flow control relief valve
Inventor: WELLS GRAHAM MELBOURNE
IPC: F16K17/10
Filed: 1964-06-03
Abstract: 1,124,282. Valves. HOPKINSONS Ltd. 1 Sept., 1965 [3 June, 1964], No. 22942/64. Heading F2V. [Also in Division G3] A sliding plate valve closure 43 is loaded to the closed position by a compressed air, water or oil pressure actuated piston-diaphragm (54, 55), Fig. 1 (not shown), and acts as a pilot valve controlling the pressure supply from the inlet (63), Fig. 3 (not shown), of a valve closure (35), loaded to the closed position by a spring (40), to a chamber (62) of a piston (39) integral with the closure (35); excessive inlet pressure acts on the unbalanced end of the stem 49 to unseat the closure 43 against the loading of the piston-diaphragm (54, 55) whereby the piston (39) is displaced and valve closure (35) opens.
Patent GB-352759-A (GB)
Title: Improvements in or relating to metal alloys
IPC: C22C21/12
Filed: 1930-07-30
Abstract: Aluminium alloys contain 1,5-5 per cent of copper, 0,25-2,5 per cent of nickel, 0,25-1,5 per cent of chromium, and 0,25-2 per cent of magnesium.  The alloys may be made by adding to aluminium an alloy of all the additional constituents except magnesium which is added separately, or by adding to aluminium binary alloys of aluminium and the additional constituents except magnesium which is added last. Iron and silicon may be present as impurities.  The alloys may be heated in a bath of nitrates of sodium and potassium at 475-500 DEG C., quenched in water, and aged for 8-10 days.
Patent GB-736213-A (GB)
Title: Pneumatic propelling apparatus for mine wagons or the like
IPC: B61J3/08
Filed: 1949-09-05
Abstract: 736,213. Fastenings. HENKEL, K. Sept. 5, 1949 [Oct. 1, 1948], No. 22994/49. Class 44. [Also in Group XXX] In a power driven system wherein mine wagons or the like are engaged by one or the other of a pair of pusher dogs that are reciprocated in opposite directions by a two-cylinder compressed-air motor, the pushers being carried by respective slides which are connected to each other and to the two piston rods of the motor, each piston rod is connected to its respective slide by a device comprising two complementary coupling parts 15, 16 held together by a surrounding sleeve 19 when they are to embrace the end of the piston rod 4 and engage in an annular groove 18 provided therein to prevent longitudinal separation of the piston rod and coupling. The sleeve 19 is held against longitudinal movement relative to the coupling parts 15, 16 by a split ring 21 which seats within a circumferential groove in the coupling parts and abuts against one end of the sleeve, thereby holding the other end against a circumferential shoulder 20 on the coupling members. A bolt 17 connects each slide 6 or 7 to its associated coupling device.
Patent GB-812146-A (GB)
Title: Improvements relating to fire extinguishing agents
Inventor: BIRCHALL JAMES DEREK
IPC: A62D1/00
Filed: 1955-08-10
Abstract: Borax, sodium sulphate, microcosmic salt, or disodium hydrogen phosphate, has incorporated therewith by a simple mechanical mixing an agent imparting water-repellancy to said powder, e.g. the metal salt of a high molecular-weight fatty acid such as magnesium stearate.  Other agents may be incorporated to provide free-flowing qualities to the powders, e.g. water-insoluble or slightly soluble phosphates such as tricalcium phosphate and to prevent the caking of the powders alkali reearth metal carbonates may also be included. The powder should be ground to a 100-mesh B.S.S.  Specification 758,463 is referred to.
Patent GB-1364795-A (GB)
Title: Fuel cells
IPC: H01M8/08
Filed: 1972-05-16
Abstract: 1364795 Fuel cells L NANIS 16 May 1972 23035/72 Heading H1B The anode 2 and cathode 3 in respective electrolyte compartments formed by a permeable barrier 11 are immersed in foam layers 14, 15 formed by adding a foaming agent to the electrolyte 12, 13, the electrolyte being initially agitated, if desired, to generate the foam. The foam layers 14, 15 are maintained by the fuel, e.g. hydrogen, suppled at 7 and the oxidant, e.g. oxygen, supplied at 8. The action of the foam bubbles on the electrodes 2, 3 improves the rate of reaction at the interface between the electrodes, electrolyte and fuel or oxidant. As shown, the electrodes are smooth sheets of platinum. The electrolyte may be H 2 SO 4  or KOH. The Specification describes three specific foaming agents. In a modification (not shown) the electrodes are of spiral shape.
Patent GB-244380-A (GB)
Title: Improvements in or relating to spirit levels
IPC: G01C9/30
Filed: 1925-09-17
Abstract: 244,380. Tallack, H. T. Sept. 17, 1925. Levels. - In a liquid level, the tube A contains, in addition to the spirit &c. C and air-bell B, a quantity of mercury D which is so proportioned that changes of temperature produce a minimum effect on the size of the air-bell. Specifications 3528/00 and 207,871 are referred to.
Patent GB-1153523-A (GB)
Title: Proportional Letter-Spacing Escapement Device for the Carriage of Typewriters
IPC: B41J19/58
Filed: 1966-05-25
Abstract: 1,153,523. Proportional-letter-spacing escapement device. OLYMPIA WERKE A.G. 25 May, 1966 [1 June, 1965], No. 23284/66. Heading B6F. A proportional letter-spacing escapement device for a typewriter carriage (not shown), having attached thereto an escapement rack 1, Fig. 2, whose teeth 3<SP>111</SP>, 3<SP>11</SP>, 31 are subdivided into three letter-spacing units e (Fig. 3a), is provided with three pawls 4 1 , 4 2 , 4 3  each of which is associated with a respective pair of release members 11, 11a, actuated selectively by one or more of bails 22 . . . 26, to pivot one or more of the pawls 4 1  ... , out of engagement with the escapement rack teeth 3<SP>1</SP> ... , and cause the carriage to move in the letter-spacing direction 2 by a multiple of units e, as predetermined by the number of actuated bails 22 ... 26. The operation to effect a carriage escapement corresponding to two units e the bail 22 is raised by the associated type key (not shown) so as to rock the release members 11 1 , 11 2  of pawls 4 1 , 4 2  upwardly into a locking engagement with a detent bail 31 to cause the pawls 4 1 , 4 2  to be disengaged from the gap between teeth 3<SP>111</SP> and 3<SP>11</SP>. Pawls 4 1 , 4 2  are then pulled by their springs 8 1 , 8 2  in the back-spacing direction, whilst the pawl 4 3  which is still in engagement with the tooth gap between teeth 3<SP>111</SP> and 3<SP>11</SP> is displaced in the letter-spacing direction by the carriage until the edge 6<SP>1</SP> 3  in its slot 6 3 , Fig. 4, abuts a common rod 7 on which all the pawls are mounted pivotally and slidably. Meanwhile the pawls 4 1 , 4 2 , as they are being displaced by their springs 8 1 , 8 2 , slide of the noses 16 1 , 16 2  on the right hand side of the release members 11a,  1 11a 2  and engage the next tooth gap disposed between teeth 3<SP>11</SP> and 3<SP>1</SP>, whereby the edges 6<SP>1</SP> 1  and 6<SP>1</SP> 2  of slots 6 1  and 6 2 , Fig. 4b, are spaced from the pin 7 by one and two units e, respectively.
Patent GB-640813-A (GB)
Title: Improvements in or relating to sewing machines
IPC: D05B15/00
Filed: 1948-09-04
Abstract: 640,813. Ball joints. BRITISH UNITED SHOE MACHINERY CO., Ltd. (United Shoe Machinery Corporation). Sept. 4, 1948, No. 23316. Addition to 585,248. [Class 65 (ii)] [Also in Group VII] Attaching adjustably A work-guiding member 26 in a shoe sewing machine (see Group VII), is mounted on a ball stud 24 which is vertically adjustable ir a slotted lug 20 on a mounting bracket 14. The shank of the stud carries nuts which clamp washers against opposite sides of the lug 20, the front washer 30 being formed with guiding projections which engage grooves formed in the face of the lug above and below the slot.
Patent GB-532036-A (GB)
Title: Improvements in or relating to stranded electric conductors
IPC: H01B11/12
Filed: 1939-08-12
Abstract: 532,036. Cables. DUBILIER CONDENSER CO. (1925), Ltd. Aug. 12, 1939, No. 23327. Convention date, Aug. 12, 1938. [Class 36] The individual strands of a stranded conductor are bent so that portions of each strand are laterally displaced relatively to the mean longitudinal axis of the strand and the several strands are so stranded together as to form a substantially undeformable conductor in which each strand only contacts with other strands at point contacts spaced at intervals along the strand, whilst the portion of each strand between adjacent point contacts with other strands is spaced from the surfaces of the other strands. The conductor shown in Fig. 1 has four strands 20, 21, 22, 23 each of which is bent throughout its length into the form of a continuous sine wave. The modified conductor shown in Fig. 4 has strands 30, 31, 32, 33 shaped as shown. The strands may be individually provided with an insulating coating.
Patent GB-1212111-A (GB)
Title: New salicylamides
IPC: C07C233/12
Filed: 1968-05-16
Abstract: 1,212,111. Salicylamide derivatives. PHILIPS' GLOEILAMPENFABRIEKEN N. V. 16 May, 1968 [19 May, 1967; 19 Feb., 1968], No. 23372/68. Heading C2C. Novel compounds of Formula I <SP>i</SP>n which R 1  is Cl, Br or I; R 2  and R 3  are H, Cl, Br, or I and R 4  is H or C 1-8  acyl are prepared by reacting compounds II with compounds III wherein R 5  is OH, halo, or phenoxy. 1 - Amino - 3,4 - dichloro - naphthalene is prepared by reduction of the corresponding 1- nitro-derivative. Pharmaceutical compositions, with anthelmintic activity when administered orally or parenterally, comprise a compound I in association with suitable carriers and/or diluents.
Patent GB-1201651-A (GB)
Title: Improvements in or relating to milking parlours
Inventor: REEVE CHARLES JOHN
IPC: A01K1/12
Filed: 1967-05-19
Abstract: 1,201,651. Milking parlour. C. J. REEVE. 26 April, 1968 [19 May, 1967], No. 23381/67. Heading A1M. A milking parlour comprises a rotatable platform 5 divided into stalls by divisions 8 pivoted at their inner ends. When a cow 19 has walked from the inlet ramp 3 on to platform 5 she is attracted towards a feeding trough 10 and the following division 8A is swung round to complete the stall. The continuously driven platform is preferably annular and above ground level so that an operator can work at waist level in a central opening 6. A milking cluster, Fig. 5 (not shown) is provided for each stall with a vacuum line (29) operated by valve (30) (Fig. 7, not shown) which automatically breaks the vacuum, and hence releases the cluster from the udder, when a valve handle (31) engages a fixed peg (33). The post 9 forming the division pivot is automatically raised and enabled to be swung round, when it reaches the position of 8A, by means of a roller (18), Fig. 4 (not shown), engaging a fixed cam rail (17) which is raised at (17A) to lift roller (16) out of slot (15).
Patent GB-295696-A (GB)
Title: Wriggle-drive
IPC: B63H16/00
Filed: 1927-09-06
Abstract: 295,696. Wels, F., and Calligaris, O. Aug. 19, 1927, [Convention date]. Propelling; ornithopters.-The rudder of a boat or plane of an aerial-craft is mounted on a cardan joint whereby movement of an actuating lever results in the rudder or plane receiving a vibrating movement for effecting propulsion or sustentation. For aircraft, the planes are mounted on cardan joints 9, Fig. 2, the actuating levers 7 being pivotally attached to a block 11 slidably adjustable in a groove on a rotary dished plate 10.