baber/WOPTO huggingface dataset:
Patent GB-495847-A (GB)
Title: Improvements in or relating to the manufacture of chromium-nickel alloy steels resistant to intercrystalline corrosion
IPC: C22C38/40
Filed: 1937-02-12
Abstract: To render alloy steels containing 5-28 per cent of chromium, 2-20 of nickel and more than 0,07 of carbon resistant to intercrystalline corrosion, the steels are decarburized by means of decarburizing gases, such as moist hydrogen or nitrogen containing oxygen, at elevated temperatures, to such an extent as to produce resistance to intercrystalline corrosion at those parts which are to be heated subsequently to 500-900 DEG  C.  Those parts which are not to be treated are provided with neutral covers or sheets.  When hydrogen is used as the decarburizing gas, the temperature to which the steels are heated is 500 DEG  C. and for nitrogen &c. 700-1300 DEG  C.  The decarburizing may be applied to half-finished products and preferably with one of the heating stages necessary for the hot working, e.g. the heating of such products for the rolling.  Specifications 305,664, [Class 120 (iii)], and 337,349, [Class 82 (i)], are referred to.
Patent GB-881468-A (GB)
Title: Improvements in and relating to dynamo-electric machines
Inventor: MORGAN JOHN WILLIAM HAROLD
IPC: H02K1/16
Filed: 1957-02-07
Abstract: 881,468. Dynamo-electric machines. ENGLISH ELECTRIC CO. Ltd. Feb. 5, 1958 [Feb. 7, 1957], No. 4241/57. Class 35. In an A.C. dynamo-electric machine having a relatively large gap in the magnetic circuit between magnetically active parts of the rotary and stationary ferro-magnetic core members of which the latter member has a distributed electrical winding, such winding has parts disposed in the stationary core member 10 and, to reduce leakage reactance, other parts disposed in the gap but radially adjacent the first-mentioned parts. As shown applied to a turbo-alternator stator, a frame 12 supports via welded axially extending key bars 13 and projections 14 staggered segmental core plates 11 carrying twolayer winding coil sides 21 in slots 20 defined partly by tooth roots 16 formed on the plates 11 and partly by tapered tooth extensions 18 made of electrically insulating material and comprising a number of axially extending sections disposed end to end along the core length. The roots 16 and extensions 18 have parallel-sided slots 17 and projections 19, and the extensions are further supported by axially spaced electrically insulating hoops 24 which press outwardly against the free ends of the extensions and are secured thereto by screws 26. In a modification, not shown, the extensions are formed by non-magnetic e.g. aluminium laminations either bonded together and dovetailed to the roots 16 or bonded to individual core plates 11. In the Provisional Specification the winding may be disposed wholly in the gap between the members.
Patent GB-109016-A (GB)
Title: Improvements in Containers for Merchandise in Stick Form such as Shaving Soap.
Inventor: SIMINGTON HENRY JOSEPH
IPC: A45D40/02
Filed: 1917-03-26
Abstract: 109,016. Simington, H. J. March 26, 1917. Contents, delivering and facilitating access to.-A stick of shaving-soap, camphor ice, vaseline, &e. is caused to project from a box 11 by means of a button 17, which slides in a slot 13 and has a plain or threaded point 18 pushed into the soap &c. The button 17 may be turned into a notch 14, in order to retain the soap &c. in its withdrawn position. To prevent evaporation of the contents of the box, the slot 13 is provided with a longitudinally-slotted cover-plate, which covers the slot 13 when the button 17 is turned into the notch 14. A light spring 19 or a pad of cotton-wool may be arranged to press upon the end of the stick of soap &c., so as to prevent unintentional disengagement of the button 17 from the notch 14. The box may have a number of slots such as 13. Pins 22 operating in transverse slots hold the cover-plate from longitudinal movement. The cover-plate is sometimes made withcut a slot, in which case the button bears against one of its edges, the other edge being turned inwards to engage in the stick of material.
Patent GB-241081-A (GB)
Title: Improvements in club settles, sofas and like articles of furniture
IPC: A47C7/00
Filed: 1925-02-17
Abstract: 241,081. Knoll, W. Feb. 17, 1925. Covering-materials; upholstery, securing in position.-A covering material for seats consists of strips b of leather, plaited together, and s t re t c h e d tightly across the frame members. Separate frames c may be used, adapted to be inserted into the main framing of the piece of furniture. The strips may be of different colours.
Patent GB-1255442-A (GB)
Title: Improvements relating to drive units for motor vehicles
IPC: F16H59/46
Filed: 1970-01-29
Abstract: 1,255,442. Differential speed indicators. DAIMLER-BENZ A. G. Jan. 29, 1970 [Jan. 31, 1969], No. 4409/70. Headings G1J, G1K and G1N. When starting a vehicle with a drive unit comprising a hydraulic coupling or hydraulic torque converter employed as a driving-off clutch 3 in combination with a mechanical change-speed gearing 2, undue delay in changing gear involves excessive slip in the driving-off clutch with consequent over heating of the hydraulic fluid so to help the driver avoid this situation a warning is given in response to slip exceeding a predetermined value and protracted beyond a predetermined duration between the turbine wheel 7 and the pump wheel 8 of the coupling or torque converter 3. A warning device to indicate excessive speed includes tachometer drives 10, 11 between the wheels 7, 8 and a common instrument 12 which has two pointers in the form of a needle 14 and sector 13 inter-connected by a damping device 19 to provide a time delay. Alternatively, Fig. 3 (not shown) a temperature-sensitive device e.g. a thermocouple or bi-metallic element influences a temperature indicator arranged to give an acoustic signal when the temperature of the hydraulic medium exceeds a predetermined value. In another device voltage transmitters on the shafts of the wheels 7, 8 produce voltages proportional to their speeds and influence an electrical measuring instrument which gives a warning in dependence on slip and input speed.
Patent GB-651458-A (GB)
Title: Improvements in or relating to boiler feed-water systems
IPC: F22B37/22
Filed: 1947-02-28
Abstract: 651,458. Feedwater .distributers for steam boilers. ANGLO-IRANIAN OIL CO., Ltd., BEALE, C. L., [Representatives of DIGHT, S. R.]. Feb. 28, 1947, No. 4420. [Class 123(ii)] Feedwater is supplied to the steam- and-water drum a of a boile: by an inlet pipe b which extend horizontally through the drun below the norma water level there in and communi cates, by means of a junction c, with a parallel pipe d which is provided with a number of spaced vertical outlets e of relatively small diameter, the latter being adapted to project the feedwater, which has been heated by passage through the pipes b, d, into the steam space of said drum. A uniform distribution of the feedwater is secured by one or more deflection plates g of trapezoidal section which are mounted above the out lets e on supports f extending upwardly from the pipe d. The slanting walls h of the plates g are preferably corrugated to form transverse grooves so that the feedwater is deflected downwardly at an angle and discharged in a row of small streams on each side of the pipe d.
Patent GB-657378-A (GB)
Title: Drawing table
IPC: A47B85/02
Filed: 1949-02-18
Abstract: 657,378. Parallel rulers. HERMESSE, J., and HERMESSE, E. Feb. 18, 1949, No. 4424. Convention date, Feb. 23, 1948. Class 97 (iii)] [Also in Group XIV] A parallel ruler 9 is mounted on a drawing table 6 by links coupled to a lower rail 8 angularly adjustable about a central pivot 11.
Patent GB-524947-A (GB)
Title: Improvements in or relating to seat mountings, particularly for vehicles
IPC: B60N2/16
Filed: 1939-02-10
Abstract: 524,947. Seats. HILL, P. Feb. 10, 1939, Nos. 4470, 5170 and 17786. [Class 52 (ii)] [Also in Group XXX] A vehicle seat having an angle-iron frame 10, Fig. 2, and connected to an angle - iron base frame 11 by parallel links 22, 23, adjusted upwards and rearwards by a lever 37 having a cam edge 38 engaging a cross plate 18 of the seat frame, the lever being actuated through a plunger rod 41 to which thrust is imparted from a screw 46 through balls &c. 48 or a fluid medium in a tube 44 pivoted in lugs 43 on another cross plate 19 of the seat frame. The links 22 when upright may engage a stop 49 and the lever 37 may rest on a stop 50 when lowered. In the arrangement shown in Fig. 4 the lever 37 is slotted over its pivot 36 andthe initial thrust engages an inclined edge 51 of the lever with an edge of the plate 18 to give an initial lift to the seat before the lever turns. In another arrangement, Fig. 5, the plunger rod 41 is pivoted to a sliding wedge block 54 engaging a block 53 on the seat frame, a base plate 33 having a stop 56. The seat frames may be notched to fit over the base pivots of the links so that the seat frames may fall flush with the base frames. A hydraulic plunger 41, Fig. 8, in the vertical limb of a rightangled tube 63, 65 carried by the seat may be employed.
Patent GB-667330-A (GB)
Title: Improvements in and relating to scrap cutting shear
Inventor: REED E
IPC: B23D31/04
Filed: 1950-02-21
Abstract: 667,330. Shearing. ARMCO INTERNATIONAL CORPORATION. Feb. 21, 1950, No. 4480/50. Class 83 (iv). Shear-blades.-A metal scrap-cutting shear comprises pairs of co-operating rotary polygonal cutters 48 on parallel shafts 32 with means for feeding narrow strips of scrap parallel to the axes of the cutters for severance by the straight edges of the cutters. Cutter sections 48 shaped as in Fig. 4 are bolted to bosses 46 keyed to the shafts 32. Duplicate shears are rotated by an electromotor 38 and are transversely adjustable by screws 31 from a hand wheel. Metal sheet feeds; waste removing.-The web 13 is fed by rolls 11, 12 to rotary cutters 14, 15 and the scrap 52 is fed down shoots 19 to the polygonal cutters 48 and is sheared into small lengths.
Patent GB-657222-A (GB)
Title: Improvements in or relating to pneumatically powered hydraulic reciprocating pumps
IPC: F04B49/02
Filed: 1949-02-18
Abstract: 657,222. Cullapsable tubes. CHICAGO PNEUMATIC TOOL CO. Feb. 18, 1949, No. 4485. Convention date, April 7, 1948. [Class 66] [Also in Groups XXVI and XXVIII] A pneumatically-operated reciprocating pump comprises a hydraulic portion having a pump chamber 137 communicating with a collapsable oil reservoir, a pneumatic portion having a cylinder 24 supplied with pressure air through a distributer valve which is normally open for air to pass to an automatic valve controlling the supply to the cylinder; a piston 82, 153, within each portion, actuated on its power stroke by the air; and a pressure regulating valve which stops the piston upon a predetermined oil pressure. A normal throttle valve controls the air flow to the other air valves (see Group XXVI), and also to the outside of the collapsable reservoir to force the oil therefrom through an inlet valve 130 into the pump chamber. The air piston 82 is loaded by a spring 157 and is connected to the plunger 153 which forces the oil through delivery valve 141 to the outlet 146. An air operated oil pressure release valve 121, Fig. 10, allows the oil in the outlet pipe 147 to return to the reservoirs when the throttle valve is closed. This valve may be held closed to retain the pressure in the pipe by a screw 117. Alternatively a hand operated release valve may be fitted. The inlet and delivery valves 130, 141, are held against their seats by springs and also by the oil pressure acting through ports 135. Oil leaking along the plunger is collected in a groove 154, Fig. 14, and returned to the reservoir. The pressure regulator valve is opened by excess air pressure to exhaust the cylinder when the piston stalls at the predetermined oil pressure. One or more collapsable reservoirs may be connected to the pump in addition to the reservoir.
Patent GB-831515-A (GB)
Title: Improvements in or relating to labelling machines
Inventor: FAIREST DEREK HOWARD
IPC: B65C3/20
Filed: 1957-02-09
Abstract: 831,515. Labelling machines. FAIREST Ltd., M. April 29, 1958 [Feb. 9, 1957], No. 4512/57. Class 73 In a bottle labelling machine a suction type labelling bar 4, Fig. 2, movable in an orbital path with the bottle 1 carries a top-strapping, pad 11 on an arm 37 which moves about a horizontal pivot 38 between a horizontal and vertical position, Fig. 6, and also carries a pair of side pressers 49 movable about vertical pivots 50A, Fig. 7, both the pad and pressers being actuated by fixed cams. The arm 37 is yieldingly retained in the vertical position for the receipt of a top-strap 20 from the vertical transfer bar (not shown) by a spring loaded plunger 34, Fig. 6, engaging a face 35 and is moved to the label applying position by a fixed cam 43 which engages a roller 41 on an arm 40 integral with the arm 37. After release by the cam 43 the. pad 11 is lifted clear of the bottle top by the plunger 34 which engages a second face 56 on the arm 37 and is finally raised to the vertical position by a second stationary cam 58 (not shown) which engages a toe 57 of the lever 40. The side pressers 49 are actuated to engage the bottle sides by fixed cams 53, disposed on opposite sides of the orbital path. Return springs 51 normally hold the side pressers 49 clear of the bottle during the initial application of the top strap by the pad 11 which has flexible wings 47 for effecting the initial bending of the top strap 20. Specification 746,506 is referred to
Patent GB-496349-A (GB)
Title: A process for cleansing or de-greasing articles of rigid material
IPC: C23G5/028
Filed: 1938-02-14
Abstract: In a process for cleaning metal and similar articles in an open top type of apparatus provided with a condenser in the upper part p thereof, there is used tetrachlorethylene maintained at a temperature between 70 and 90 DEG  C., whereby vapour losses are reduced.  The temperature is regulated preferably by a thermostat. Specification 399,717 is referred to.
Patent GB-241152-A (GB)
Title: Improved photographic gelatine emulsion surfaces
IPC: G03C7/22
Filed: 1925-02-19
Abstract: 241,152. Leyde, J., (Assignee of Leyde, E.). Oct. 9, 1924, [Convention date]. Colour sensitive and like plates and films; colour photography. - The gelatine emulsion is itself coloured with a light-filtering dye the penetration of which is limited to a very thin layer, essentially thinner than the surface which is changed by the action of the light. The result is obtained by applying an alcoholic solution of a water soluble dye containing sufficient water to ensure the limited penetration. A kinematograph film band may have its emulsion thus coloured with a recurrent series of colours, each series being applied by means of a stencil band and colouring rollers. A mixture of acid aniline red and tartrazine may be used for orange-red and a mixture of tartrazine and patent-blue for green.
Patent GB-814093-A (GB)
Title: Feed-back servo-control systems
Inventor: SURTEES HOWARD
IPC: G05B5/01
Filed: 1956-02-14
Abstract: 814,093. Automatic control systems. FAIREY AVIATION CO. Ltd. Feb. 12, 1957 [Feb. 14, 1956], No. 4662/56. Class 38 (4). In a servo control system having a feedback loop, means responsive to increased gain round the loop at a frequency outside the range of working frequencies reduces the gain of an element in the feedback loop. In Fig. 3 an aircraft radio receiver (not shown) produces an electrical signal, representative of displacement of the aircraft from a radio beam or a turn control signal from a remote radio operator, which is applied at 10 through a low-pass filter 11 and an adding unit 13 to an amplifier 17 energizing an electrically operated valve 19 controlling a fluid-actuated rudder 22 of the aircraft 24. The consequent lateral acceleration of the aircraft is made proportional to the control signal by an electrical signal derived from an accelerometer 30 which is applied through an amplifier 34 to an adding unit 13. A signal is also applied to adding unit 13 from an oscillator 81 having a frequency close to the self-oscillation frequency of the feedback loop. After passing through amplifier 34 this signal is separated from the feedback signal by a band-pass filter 83, rectified, and compared with the rectified output of oscillator 81 in a circuit 94. Circuit 94 is arranged so that if the gain of the feedback loop exceeds, say, 0.7 the consequent output from circuit 94, after smoothing at 95, reduces the gain of feedback amplifier 34. An alternative arrangement in which the gain of the forward part of the feedback loop is controlled, is referred to. A control signal limiter may be associated with the input to adding unit 13. In a modification oscillator 81 is dispensed with and self-oscillation is arranged to limit itself by controlling the gain of the feedback amplifier. Amplifier 34 may alternatively be controlled by a signal which is an integral function of oscillation amplitude. Suitable forms of filter and feedback valve amplifier are described and component values given.
Patent GB-1530872-A (GB)
Title: Derivatives of 7-(2-amino-4-thiazolylacetamido)-cephalosporanic acid processes for preparing them and pharmaceutical compositions containing them
IPC: A61P31/04
Filed: 1977-02-04
Abstract: 1530872 3-Carbamoyloxymethyl-7-aminothiazolylacetamido-ceph-3-em-carboxylic acids ROUSSEL-UCLAF 4 Feb 1977 [5 Feb 1976] 04663/77 Heading C2C Novel 3-carbamoyloxymethyl-7-aminothiazolylacetamido-ceph-3-em-carboxylic acids of the general formula wherein R is hydrogen or a group removable by acid hydrolysis or hydrogenolysis; R 1  is hydrogen or C 1-4  alkyl; and A is H, an alkali metal, an equivalent of an alkaline earth metal or magnesium, or a substituted ammonium group, are prepared (a) when R 1  is hydrogen and R is a removable group, by reacting the corresponding alkali metal salt in which R 1  is a group removable by hydrolysis with a hydrolysing agent (if basic, followed by treatment with an acid); (b) when R is a removable group and R 1  is C 1-4  alkyl, by reacting a 3-hydroxymethyl derivative of the general formula wherein A<SP>1</SP> is an alkali metal and R<SP>1</SP> is a group removable by acid hydrolysis or hydrogenolysis, with R<SP>1</SP> 1 NCO, wherein R<SP>1</SP> 1  is O 1-4  alkyl; and (c) when R is hydrogen, by hydrolysis or hydrogenolysis of the product of (a) or (b); followed optionally by salification. They can be used as the antibiotically active ingredients of pharmaceutical compositions.
Patent GB-588511-A (GB)
Title: Improvements in or relating to frictional igniters
IPC: F23Q2/44
Filed: 1945-02-24
Abstract: 588,511. Pyrophoric lighters. NAYLOR, S. Feb. 24, 1945, No. 4689. [Class 75 (iii)] The perforated wick tube 1, Fig., 1 of a pocket or table lighter has at one end a nozzle plug 4 with a constriction to. fit the wick 3 closely, the remainder of the tube being much greater in diameter to permit coiling of the wick which at its lower end has contact with or is embedded in the absorbent packing within the fuel .container. The plug 4 is flanged at 6 and screw threaded into the top 8 of the body 10. In a modification, Fig. 2, the tube 1 is threaded into a perforated baffle tube 20 fixed to the top 8. The tubes 1, 20 are spaced apart and their perforations staggered. The wick tube 1 has at its lower end a milled head 24 to facilitate assembly. The body 10 may be made of metal or plastic.
Patent GB-804871-A (GB)
Title: Improvements relating to synchronous detectors for electrical signalling
IPC: H03D1/22
Filed: 1957-02-12
Abstract: 804,871. Homodyne detector circuits. ADMIRAL CORPORATION. Feb. 12, 1957 [Feb. 20, 1956], No. 4750/57. Classes 40 (5) and 40 (6). A homodyne detector comprises a pair of series-connected valves, amplitude-modulated signals being applied to the grid of one valve 10 and unmodulated waves of the same frequency as the carrier, to the grid of the other 11. The valve 11 is so biased, from bias source 70, as to operate as a switch, being conductive for positive half-cycles of the unmodulated wave and non-conductive for the negative half-cycles. The valve 10 is so biased, from potentiometer 18, 19 that during the periods when anode current flows, i.e. when valve 11 is conductive, it operates as a class A amplifier. The demodulated signal appears across the load circuit comprising resistor 17 and smoothing condenser 60. In an alternative arrangement, Fig. 9 (not shown), the functions of the two valves are interchanged. Transistors may also be used instead of thermionic valves.
Patent GB-1170501-A (GB)
Title: A Semiconductor Device
IPC: H01L21/00
Filed: 1967-02-01
Abstract: 1,170,501. Semi-conductor devices; printed circuit assemblies. TELEFUNKEN PATENTVERWERTUNGS G.m.b.H. 1 Feb., 1967 [19 Feb., 1966], No. 4935/67. Headings H1K and H1R. A semi-conductor device includes passive elements, such as conducting paths 11, 12, on the surface of a semi-conductor body 1, isolated from the body by insulating layers 9, 10 disposed in grooves 7, 8 in the body 1. In the transistor illustrated diffused base and emitter regions 2, 3 are connected to external contacts through large-area, contact regions 11, 12. The insulating layers 9, 10 which may be of silicon dioxide or nitride vapour-deposited through a mask of metal or photo-lacquer, are positioned immediately below the large-area contacts, to minimize the capacitance between the contacts and the body 1. The grooves 7, 8 may be photo-etched. In an alternative embodiment a vapour-deposited resistor (15), Fig. 3a (not shown), connected to the collector region of a transistor (19), is isolated from the semiconductor body (1) by an insulating layer (10) 5-10 Á thick in a groove. Inductors may be similarly isolated, and the invention may also be applied to devices including diodes or integrated circuits.
Patent GB-1267643-A (GB)
Title: Dispensing containers
IPC: B65D83/14
Filed: 1970-02-02
Abstract: 1,267,643. Pressurized dispensing containers. L'OREAL. Feb.2, 1970 [Feb. 3, 1969; March 12, 1969], No.4963/70. Heading F1R. A dispenser contains a liquid or paste 14 above a piston 7 in which is removably mounted a cartridge 9 of pressurizing fluid 13, the cartridge being perforable by a needle 5 which is pushed against the spring 6 to perforate the cartridge 9 just before the substance 14 is to be dispensed. A ring of resilient material 12 presses the supple wall of the piston against the container 1 to improve the seal therebetween. In a second embodiment Fig. 2 (not shown) the wall of the piston extends to the base of the container and the needle has a passageway connecting the space below the piston to the atmosphere, which passageway is closed just before the needle perforates the cartridge. A cardboard ring on the needle prevents accidental operation of the needle.
Patent GB-177345-A (GB)
Title: Improvements in electron discharge devices
IPC: H01J19/66
Filed: 1921-02-12
Abstract: 177,345. General Electric Co., Ltd., and Bartlett, A. C. Feb. 12, 1921. Vacuum tubes.-A thermionic valve or other discharge tube is mounted in a holder provided with elastic gripping means, for instance of rubber, supporting the bulb, and with contacts connected with the electrodes. In one arrangement, Fig. 1, the bulb has a rib 12 over which is sprung a cylindrical belt 15 of soft rubber, fitting in a socket 18 of rubber in a metal holder 16, having a beaded rim 17. A space is preferably left as shown between the socket and the holder. A disc 21 of ebonite carries contact pins 20<a>, connected with the leading-in wires of the electrodes by coiled spring wires 24a insulated by rubber sleeves 25. In another arrangement, Fig. 3, the holder is in the form of an ebonite or like casing 27 having a removable top 27<a>, and rubber bands 30, 31 and blocks 32, 33 for supporting the bulb. Conical and rectangular contacts 45, 54, respectively, are moulded into the holder, and are connected by spring wires with loops at the ends of the leading-in wires. The contacts 54 may have grooves into which the ends of the spring wires are soldered.