baber/WOPTO huggingface dataset:
Patent GB-395266-A (GB)
Title: Improvements in or relating to self contained hot water radiators
IPC: F24H3/00
Filed: 1933-01-03
Abstract: 395,266. Radiator stoves. PREEN, A., Crown Works, Regents Park, Southampton, and LEE, R. S., 6A, Fourth Avenue, Queen's Park, Paddington, London. Jan. 3, 1933, No. 157. Divided on 394,492. [Class 126.] A sectional hot-water radiator stove comprising radiating sections c extending between upper and lower horizontal conduits a, b, is provided with a heating section, shown separately in Fig. 4, consisting of two integral castings 20 secured together and formed with channels which together form a heating flue e, one or both of the sections also embodying a water space d1 communicating with the conduits a, b. In the construction shown, both sections embody a water space d1, the two spaces being separate and each being connected to the radiating elements on one side of the heating section. The sections are secured together by screwed tubular connectors 3. The flue e is of zig-zag form. The end sections are extended downwardly and carry castors 6 and brackets 10 which support the oil heating-lamp.
Patent GB-755103-A (GB)
Title: Improvements in or relating to the manufacture of steroids
Inventor: GREEN JOSEPH
IPC: C07J9/00
Filed: 1954-01-04
Abstract: Steroidal 4-en-3-ones are prepared by treating a solution of a steroidal 4 : 6-dien-3-one in an inert solvent, with liquid ammonia, then adding an alkali metal and finally removing excess of said metal.  In examples: (1) lithium metal is added to a stirred mixture of ethereal ergosta-4 : 6 : 22-trien-3-one and liquid ammonia, the excess metal destroyed with ethanol or ammonium chloride, excess ammonia evaporated and ergosta-4 : 22-dien-3-one isolated with ether and purified by chromatography on alumina.  (2) As in (1) using metallic sodium.  Similarly 4 : 6-cholestadien-3-one is reduced to cholest-4-en-3-one, and 6-dehydroprogesterone to progesterone.  The Provisional Specification refers to the reduction of 4 : 6-dien-3-ones which possess a -C10H19 (stigmasterol) side-chain. U.S.A. Specification 2,624,748 is referred to.
Patent GB-1071112-A (GB)
Title: Improvements in or relating to variable speed transmission systems
IPC: F16H47/06
Filed: 1963-01-02
Abstract: 1,071,112. Variable-speed epicyclic gear. CULL DEVELOPMENTS Ltd., and W. CULL. Dec. 31, 1963 [Jan. 2, 1963], No. 184/63. Heading F2D. The subject-matter is identical with that of Specification 1,071,111 (see Abridgment thereof), the claims being directed to the arrangement of the two epicyclic differential gear units 23, 24 in relation to the bevel reduction gear 21, 22 and the hydraulic motors 27, 28 (Figs. 1 and 3). The differential units are of the three-element type with annuli 52, 52a, sun pinions 53, 53a and planet pinions 69, 70 on carriers 71, 72, the bevel pinion 22 being directly coupled to the annuli 52, 52a, carriers 71, 72 connected to the two output shafts 25, 26, while the reaction sun pinions 53, 53a are connected to pinions 65, 66 meshing with the motor drive pinions 67, 68. For normal forward drive clutch 58, 60 is engaged by the servo 64 and part of the power reaching the epicyclic units is fed back through the motors to pump 9 to augment the torque on the driving wheels. For reverse drive the brake 59, 61 is engaged to lock reduction gear 21, 22, and hence the annuli 52, 52a, to eliminate mechanical connection between the engine 12 and the road wheels, and thus obtain a purely hydraulic drive. With the brake thus engaged and the setting of pump 9 reversed the slow forward speed may be obtained.
Patent GB-1189283-A (GB)
Title: Improvements in or relating to Magnetic Transducers
IPC: G11B5/49
Filed: 1969-01-02
Abstract: 1,189,283. Magnetic transducers. INTERNATIONAL BUSINESS MACHINES CORP. 2 Jan., 1969 [12 Jan., 1968], No. 258/69. Heading G5R. A magnetic transducer comprises a stack of spaced laminations 10.1-10.n having control portions 28 of differing saturation level and coupled by a common control winding 34. The laminations are bonded with copper spacers 12 and notched 26 so that the cross-section of portions 28 varies progressively through the stack whereby a sawtooth or sinusoidal waveform applied to winding 34 causes the laminations to be successively saturated (or unsaturated) so that the data on winding 24 is recorded across the width of the (tape) record 22. A second winding 38 may couple further control portions 30 whose cross-section progresses in the opposite direction so that out-of-phase waveforms applied to windings 34, 38 enable a single or group of laminations for transducing while saturating the rest.
Patent GB-1129771-A (GB)
Title: Strip rolling mill
IPC: B21B37/50
Filed: 1966-01-04
Abstract: 1,129,771. Rolling mills; stretching. N. H. POLAKOWSKI. 4 Jan., 1966 [1 Feb., 1965], No. 346/66. Headings B3E and B3M. In a rolling mill, sheet or strip 13 is passed from a pay off reel 10, over an idler roll 12, through flexing and twisting rollers 5-8, through work rolls 1, 2 backed by rolls 3, 4, over a second idler 11, and on to a take up reel 9. Rolls 5, 6, 7 are mounted in common journals (14), (14<SP>1</SP>), Fig. 2 (not shown), which can be adjusted to vary the amount of twist by screws (18), (19). In operation, when strip 13 is normally passed through rolls 1, 2, greater pressure is exerted on the centre of the strip, which is reduced in thickness more than its edges. To counteract this difference in thickness, the strip is first passed through rolls 5-8 where it is flexed and twisted so as to stretch the edges, and reduce the edge thickness more than the centre. Back up roll 5 may have an independent adjustment, and to prevent sideways drifting of the strip two guiding stands having rolls (31, 32), (33, 34), Fig. 3 (not shown) may be provided between reel 10 and rolls 5, 6, and between rolls 5, 7 and work rolls 1, 2. The mill may be a reversing mill with a selectively operable twisting means on either side of the mill.
Patent GB-951443-A (GB)
Title: Integrated flight instrument system
IPC: B64D45/00
Filed: 1960-04-25
Abstract: 951,443. Measuring electrically; Mach number meters. KOLLSMAN INSTRUMENT CORPORATION. April 25, 1960 [May 6, 1959], No.427/62. Divided out of 951, 441. Headings G1L and G1N. The description is substantially identical with that of Specification 951, 441. The claims relate to a system in which a plurality of indicators are positioned in accordance with various functions of temperature and Mach number, one indicator being positioned by a servo system in accordance with one function of Mach number and temperature, while the output of this servo system also feeds a second and third servo systems feeding respectively second and third indicators to indicate second and third functions of the measured variables. Specifications 772, 588, 869, 886, 871, 042, 951, 442 and 951, 444 also are referred to.
Patent GB-209429-A (GB)
Title: Improvements in and relating to metal shearing machines
IPC: B23D17/04
Filed: 1924-01-07
Abstract: 209,429. Friederici, A. Jan. 6, 1923, [Convention date]. Shearing.-In pivoted-jaw shearing-machines, the jaw pivot is mounted so as to be freely movable in a vertical direction. The crossed jaws e, f, Fig. 1, are actuated by tension links operated by eccentrics at 180‹ on the driving shaft d. The lower jaw is supported by an adjustable stop i and the jaw-pivot is slidable in a vertical slot in the frame. The operation of the machine is such that the upper jaw first moves down to clamp the work, after which the lower jaw moves up to shear. The jaws may be swung through an angle so as to rest on a bar o inserted in the frame, a lifting eye being fitted in the upper jaw. The jaws may be open or crossed and may be actuated by cams engaging directly with the free ends, or by eccentrics operating through thrust rods. In one form of driving-mechanism, a single eccentric is employed, which actuates one jaw, the other jaw being linked to the shaft d, Fig. 3, and having a roller p running on a flat surface on the machine frame.
Patent GB-113460-A (GB)
Title: Improvements in or relating to the Manufacture of Printing Plates or Surfaces for Printing from.
Inventor: WALKER ALFRED JAMES NEILL
IPC: B41C3/06
Filed: 1917-03-21
Abstract: 113,460. Walker, A. J. N. March 21, 1917. Printing-surfaces.-In the production of printing-plates of celluloid or similar material by pressing a sheet of the material between a matrix mounted in a recess in the table of a press, and an inflatable mattress carried by the follower of the press, the mattress is brought into contact with the sheet while the rigid margins of the table and follower are spaced apart to allow ready escape of gas and liquid exuded from the material. The matrix G obtained by pressing a sheet of lead, vulcanite, or fibre on to the type, engraved plate, or other original is mounted in a recess in the hollow press table A provided with pipe connexions for the supply of hot and cold fluid. The mattress comprises a rubber sheet H secured to the edges of a recess in the press follower B. A pipe N is provided for the supply of compressed air to the mattress. In operation, the sheet S of celluloid or similar material is placed on the matrix G, and the follower B is then lowered, by turning the crank-shaft C, until the rubber sheet H engages the sheet S which enters slightly into the recess of the follower. In this position, clear spaces T are left between the margins of the press table and follower. Steam or other hot fluid is then admitted to the table A to soften the sheet Sand compressed air is admitted to the mattress to press the sheet S on to the matrix. The air pressure is then released and cold fluid is admitted to the press table to cool and harden the sheet S. For making curved printing-plates, a curved matrix may be employed.
Patent GB-726056-A (GB)
Title: Overflow plug for water systems on poultry appliances
IPC: A01K39/02
Filed: 1953-01-08
Abstract: 726,056. Drinking appliances for poultry. SYLVESTER, V. W. July 14, 1953 [Jan. 8, 1953], No. 548/53. Class 5 (2). An overflow plug for insertion into the outlet 14 of a poultry water trough 15 to maintain a constant water level in the trough comprises a head portion 10 and a rubber or like sealing disc 13 disposed about a throat 11 which projects into the outlet 14. Excess water escapes through a bore 12.
Patent GB-1326717-A (GB)
Title: Production of 2,2-dialkyl-3-acyloxypropanols
IPC: C07C47/02
Filed: 1971-01-06
Abstract: 1326717 2,2 - dialkyl - 3 - acyloxypropanols BADISCHE ANILIN- & SODAFABRIK AG 6 Jan 1971 [7 Jan 1970] 576/71 Heading C2C 2,2 - dialkyl - 3 - acyloxypropanols of general formula where R<SP>1</SP> denotes hydrogen or an aliphatic, cycloaliphatic, araliphatic or aromatic radical and R<SP>2</SP> and R<SP>3</SP> separately denote identical or different aliphatic radicals or jointly with the adjacent carbon atom from a cycloaliphatic ring, are prepared by reacting a carboxylic acid R<SP>1</SP>COOH with formaldehyde and a secondary aldehyde in the presence of a strong acid while removing water formed and present at the beginning of the reaction. The formaldehyde may be added as paraformaldehyde, trioxan or in the form of an aqueous formaldehyde solution and a solvent forming an azeotrope with water may be used. Many starting materials are listed and the acid catalysts may be trichloracetic, phosphoric, cyanoacetic, o-bromobenzoic, p-chlorobenzoic, benzene and p-toluenesulphonic, sulphuric and phosphoric acids. Examples describe the preparation of acetoxypivaldehyde, tri-, di- and mono-chloroacetoxypivaldehyde, αα-dichloropropionyloxy-pivaldehyde, isobutyryloxypivaldehyde, 2 - methyl- 2 - n - propyl - 3 - acetoxypropanol, 2 - ethyl- 2 - n - butyl - 3 - acetoxypropanal, 1- acetoxymethyl hexahydrobenzaldehyde, benzoyloxypivaldehyde, and 3-4- and 2-4-dichlorobenzoyloxypivaldehyde.
Patent GB-468700-A (GB)
Title: Improvements relating to fittings for lavatory basins or the like
IPC: A47K1/14
Filed: 1936-01-07
Abstract: 468,700. Waste - fittings for baths. JONES, G. B. Jan. 7, 1936, No. 589. [Class 26] [Also in Group XXV] A stay device for anchoring the plug to a bath &c. is in the form of a bolt 1 of which the head 2 is perforated or otherwise formed to enable the plug-chain to be anchored thereto ; the head is formed integrally, or provided with a hook 8, Figs. 1, 2, respectively to receive a link in the plug-chain &c. so that the plug may be retained out of the way when not required. The stay device may pass through a horizontal or vertical surface or through the overflow grating.
Patent GB-1198955-A (GB)
Title: Process for the Production of Oxalic Acid
Inventor: FUCHS GERHARD H
IPC: C07C51/27
Filed: 1969-01-03
Abstract: 1,198,955. Oxalic acid preparation. ALLIED CHEMICAL CORP. 3 Jan., 1969 [24 Jan., 1968], No. 594/69. Heading C2C. [Also in Division C1] Oxalic acid is prepared by (1) reacting a carbohydrate with nitric acid (a) in a liquid reaction medium containing sulphuric acid and a catalyst, (b) at a temperature of 63‹ to 85‹ C., (c) under a pressure of at least 3À5 kg./cm.<SP>2</SP> gauge, (d) in the substantial absence of free oxygen, and (e) while maintaining the carbohydrate in the reaction mass in stoichiometric excess of the nitric acid; (2) absorbing oxides of nitrogen released from the reaction mass in an aqueous medium to form nitric acid, the absorption taking place in the presence of free oxygen and under a pressure of at least 3À5 kg./ cm.<SP>2</SP>; (3) cooling the reaction mass to crystallize oxalic acid therefrom; (4) separating the crystallized oxalic acid; and (5) recycling the mother liquor of the reaction mass to step (1).
Patent GB-448805-A (GB)
Title: Improvements in machines for moulding plastic substances
IPC: B30B11/24
Filed: 1935-01-08
Abstract: 448,805. Extrusion machines. SIZER, A. W., White House, Davenport Avenue, Hessle, Hull. Jan. 8, 1935, No. 602. [Class 87 (ii)] A machine for making cakes or pellets from meal &c., is formed with a compression chamber 4 common to a worm element having right and left-hand threads 3, 2, while die plates 6 at the ends of the chamber co-operate with knives 7 rotating with the worm element to sever the extruded material in the form of pellets. The chamber is fed with material through an opening 5. The worms may be single or multiple start, and the right and left-hand sections may be 180‹ out of phase relatively to one another. According to the Provisional Specification, the pitch, of the worms may differ gradually from the centre to the ends.
Patent GB-863923-A (GB)
Title: Electric snap-action switch for potentiometers and the like
Inventor: KOHOUT BOHUSLAV
IPC: H01H15/18
Filed: 1959-01-07
Abstract: 863,923. Snap-action switches. TESLA NARODNI PODNIK. Jan. 7, 1959, No. 638/59. Class 38 (5). A switch for potentiometers and the like comprises a housing 1 with a blade-spring 5 bowed between a recess 6 and a member 7 pivoted in a groove 8. Turning the member 7 through about 20 degrees causes the spring 5 to snap over-centre, engaging a rib 4 and sliding a bar 3 along guides 2 such that studs 9 bridge their respective contacts 10 and 11. The contacts 10 comprise rivets at the bottom of the housing, while contacts 11 are blade-springs riveted to the housing at points 12. The blade spring 5 may be made of synthetic insulating material.
Patent GB-686428-A (GB)
Title: Improvements relating to the construction of vehicle bodies comprising frames supporting outer coverings
IPC: B62D29/00
Filed: 1951-01-09
Abstract: 686,428. Vehicle bodies. DAIMLER-BENZ AKT.-GES. Jan. 9, 1951 [Jan. 9, 1950], No. 652/51. Classes 103 (iv) and 108 (i). A vehicle body comprises a frame supporting an outer covering wherein the bearers are castings or drawn sections of a non-weldable or not easily weldable light metal and sheet-metal strips or intermediate pieces of a comparatively easily weldable material, such as sheet steel, are attached to the bearers, the outer covering or skin, composed of the same easily weldable material as the intermediate pieces, being connected to the latter by welding. The framework of the body comprises bearers 10, 11, 12 connected by plates 13, 14 and having further connections to longitudinal profile bearers 15, 16, 17, all made from cast or drawn light metal having a relatively high magnesium content which provides considerable strength but has poor welding properties. Strips or intermediate pieces 18, 19, 20 of sheet steel or a light alloy having a relatively low magnesium content are attached to the bearers and skin panels 22, 23 of steel or light alloy are attached to the strips by welding. The strips may be corrugated, as shown in Fig. 1, in order to accommodate differential thermal expansion between the skin panels and the framework or they may be flat strips as shown in Fig. 5 or of " top-hat " section with the lipped flanges secured to the skin panels.
Patent GB-692020-A (GB)
Title: Improvements in or relating to aircraft provided with crash or impact detecting devices
IPC: A62C3/08
Filed: 1952-04-24
Abstract: 692,020. Retractive switches. GRAVINER MANUFACTURING CO., Ltd., MATHISEN, A., and WILKINSON SWORD CO., Ltd. April 24, 1952. No. 705/53. Divided out of and addition to 692,015. Class 38 (v) A crash or impact detecting device for use on aircraft comprises a resilient tubular casing e containing three superimposed conductor strips g<SP>1</SP>, h<SP>2</SP>, g<SP>2</SP> normally separated by insulating elements il but adapted to be brought together when pressure is applied to the casing to close a circuit to fire-preventing apparatus &c. The strips g<SP>1</SP>, g<SP>2</SP> are electrically connected by a rivet g<SP>3</SP> and they and the strip h<SP>2</SP> are respectively connected to leads 2, 3. The tubes e may run along the underside of the fuselage, wing tips &c.
Patent GB-137539-A (GB)
Title: An improved method and machine for making paper
IPC: D21F7/04
Filed: 1920-01-08
Abstract: 137,539. Great Northern Paper Co., (Assignees of Pope, C. E.). March 26, 1918, [Convention date]. Guiding - mechanism; calendering. - In transferring paper from the driers of a paper machine to the calenders and for threading it through the calenders, a strip 3 of paper web formed by a cutter 7 is stripped from the drier D by a doctor blade 9 and blown by an air jet 10 up to a conveyer 15 from which it is stripped by a doctor 16 and, by an air jet 17 co-operating with the jet 10, delivered between the calenders 30, 31, and doctors such as 30<a> and air jets 30<c> direct the strip through the calender stack, the end, when it reaches the roller 37 and when the paper is passing through the machine properly, being directed to the reel 39 by air jet 37<c>, the cutter 7 being then moved across the machine to widen the strip. The air jets 36<c>, 37<c> extend the lengths of the rollers 36, 37. Specification 136,839 is referred to.
Patent GB-560507-A (GB)
Title: Improvements in and relating to cutting tools
IPC: B23B31/02
Filed: 1943-01-14
Abstract: 560,507. Drilling. BRIGGS, J. C., CHESTON, A. S., CHESTON, B., and EDMONDS, E. C. Jan. 14, 1943, No. 732. [Class 83 (iii)] Drill &c. chucks which may be of the kind described in Specification 545,699 are fitted with a relatively rotatable sleeve acting as a depth stop and containing a ball race interposed between the sleeve and chuck. The split collet 6, Fig. 1, is formed to fit the flutes of the drill enabling broken drills to be used and is closed by a screw cap 4 between the end of which and a race 13 formed in the sleeve 9 a ball bearing 14 is disposed. The sleeve is rotatably held in position on the cap 4 by means such as a spring ring 10 or a grub screw and groove. The sleeve is formed with spaced legs 15 to permit escape of cuttings. The race 13 may be formed in a separate member spaced from the sleeve by a spring washer to reduce shock when the legs 15 contact with the work. In a further modification the ball bearing has an upper race member 20 separate from the cap 4 and pressed downwards by a spring 21 having as upper abutment a flanged screwed ring 22 adjustable on a screwed sleeve 23 itself adjustable on the cap 4. The spring 21 affords the shock-reducing resilience and contact of the parts 23, 24 adjustably limits the depth of penetration. The race member 20 is prevented from rotating on the cap by a screw 26 and slot 25.
Patent GB-1327347-A (GB)
Title: Transient suppression circuit for inductive loads in a dc system
Inventor: EHRET R J
IPC: H02M7/12
Filed: 1972-01-07
Abstract: 1327347 Control of D.C. motors BECKMAN INSTRUMENTS Inc 7 Jan 1972 [27 Jan 1971] 738/72 Heading H2J A D.C. circuit having an inductive load 4 supplied from A.C. source 1, comprises a gate controlled full wave rectifier 5, means 10 for controlling the opening and closing of rectifier 5 to vary the D.C. energizing current supplied to load 4, and a transient suppression network 20, 21, 22, connected in parallel with load 4 capable of reducing transients arising during switching of rectifier 5. The operation of the suppression network is as follows. If the network were not provided, during the time silicon controlled rectifiers 8, 9 were gated off, the current produced by the collapsing fields of armature and field windings 15, 17 of motor 4 would flow through diodes 7 and 6 and return to motor 4 via line 16. When SCR 8 or 9 again conducts there exists a momentary short across A.C. terminals 2,3 and a large voltage transient is produced e.g. if SCR 8 is triggered, a momentary short exists between terminals 2 and 3 via diode 6 and SCR 8 until diode 6 recovers and blocks the current flow. With the suppression network provided, inductor 22 and diode 21 provide a shunt path for the motor current when its fields are collapsing so that the current does not flow through diodes 6, 7, so that diodes 6, 7 have time to recover during the off times of SCR's 8, 9, e.g. if terminal 2 is positive at the instant the SCR's are triggered, the current path will be from terminal 2, diode 6, line 16, diode 21, inductor 22, and SCR 9 back to terminal 3. When diode 21 recovers it will stop the current but diode 20 provides a path for current in inductor 22. Inductor 18 reduces the ripple of the D.C. energizing current. Resistor 23 and capacitor 24 reduce voltage transients due to distributed power line inductance.
Patent GB-1068265-A (GB)
Title: Improvements in or relating to transistor selection matrices
IPC: H03K17/64
Filed: 1966-01-07
Abstract: 1,068,265. Electric selective signalling. INTERNATIONAL BUSINESS MACHINES CORPORATION. Jan. 7, 1966 [Feb. 19, 1965], No. 781/66. Heading G4H. [Also in Division H3] A transistor switching matrix has transistors (10-16, Fig. 1, not shown) arranged in rows and columns, a drive line (24, 26), connected to each transistor in a row or column, being inductive so as to form, with the stray capacitances (Cbc, Cbe) of the transistors, a transmission line having a purely resistive characteristic and it is terminated by resistors (ZR, ZC) having the same value as the line. The row and column drive lines are connected to the emitters and bases of the transistors respectively. The inductances inserted in the drive wires cancel the stray capacitances and prevent the distortion of the drive pulses that would otherwise occur.
Patent GB-374801-A (GB)
Title: Improvements in and relating to blade-holders for honing and stropping safety razor-blades
IPC: B24D15/10
Filed: 1931-07-06
Abstract: 374,801. Holders for safety - razor blades. BRAIBANT, N., 18, Rue Moncey, Paris. July 6, 1931, No. 785/32. Convention date, July 8, 1930. Divided on 374,656. [Class 30.] A blade-holder for honing and stropping safety razor blades, consists of pincers, the ends of which are surrounded by rubber &c. sleeves a, the blade being held by the sleeves and moved over a honing &c. stick. Specification 374,656, [Group XXIII], is referred to.