baber/WOPTO huggingface dataset:
Patent GB-944389-A (GB)
Title: Dynamic balance machine
IPC: G01M1/22
Filed: 1961-07-24
Abstract: 944,389. Measuring dynamic unbalance electrically. CARL SCHENCK MASCHINENFABRIK G.m.b.H. July 24, 1961 [Aug. 6,1960], No. 26664/61. Heading G1N. The location and magnitude of the unbalance of a rotor is determined with the aid of a synchronous switch. As shown (Fig. 1) a rotor 7 is driven by a motor 5 which also drives contacts 24a, 26a associated with slip rings 24, 26, and contacts 25a, 25b located diametrically opposite each other on a commutator ring 25, each segment of which is connected to a corresponding segment on a commutator ring 35 having a manually adjustable switch contact 41. When the motor 5 is running, a circuit through a relay 38 is made when the angular position of contact 25a coincides with that of contact 41, which circuit is held via contacts 38e, 37c until 180 degrees later, when contact 25b coincides with contact 41, energizing relay 37, and de-energizing relay 38 at contact 37c. Thus relay 38 is energized for half of each revolution, the phase of this half-cycle being determined by the position of contact 41. During this half-cycle the unbalance signals produced in pick-up 21a are fed to water 22 Ea, and the position of contact 41 is adjusted until the meter reading is maximum, indicating the magnitude of the unbalance measured by pick-up 21a, the angular position of contact 41 indicating the angular position of this unbalance. The apparatus may be duplicated to obtain the unbalance in two planes Ea, Eb simultaneously. Specification 715, 627 is referred to.
Patent GB-1102599-A (GB)
Title: Bulk handling container
IPC: B65D88/16
Filed: 1966-06-15
Abstract: 1,102,599. Flexible skips; flexible containers. R. G. E. SMITH. 15 June, 1966 [2 Aug., 1965], No. 26669/66. Headings B8D and B8H. [Also in Division E2] A skip 10 has a flexible cylindrical body of woven nylon material coated on its outer surface with polyvinyl chloride and on its inner surface with flexible polymethane and is reinforced by straps 16 attached at their upper ends to rings 17. To prevent excessive wear of the straps bearing tubes are provided on the rings 17. A bottom skirt may be closed by a rope 24 or a ring (25), Fig. 5 (not shown), held closed by a sliding latch (27). The opening of the skirt 13 has a wired bead. The skip is filled through an orifice in an upper flap 12.
Patent GB-235082-A (GB)
Title: Improvements in or relating to straight bar knitting machines and to the production of fabrics thereon
IPC: D04B7/04
Filed: 1924-11-08
Abstract: 235,082. Allen, L. R., and Barnett, S. Nov. 8, 1924. Straight-bar machines.-In the production of plated ribbed fabrics the ground and plating carrier bars are shogged backwards for half the distance between two adjacent needles at the end of each transverse, and the sinkers are momentarily withdrawn. This prevents the selvedge loops from being retained by the end sinkers. In the production of heels and toes the needle bar may be moved forward, instead of, or in addition to moving the sinkers backward. The adjustable carrier stops 3, 4 are mounted on laterally adjustable slides 8 working in the parts 5a, 5b of a carriage through which passes a screw 12 driven by a ratchet 14. A rack 15 pivoted to a. cam lever 17 is held against the ratchet 14 by a spring 16 and is caused to reciprocate it and the carriage &c. by means of a cam 20, the movements being timed to' occur at the ends of each traverse.
Patent GB-767229-A (GB)
Title: Improvements in and relating to automatic electrical circuit breakers
Inventor: INGWERSEN RICHARD CASTLE
IPC: H01H73/30
Filed: 1954-09-14
Abstract: 767,229. Electrically-released switches. MECHANICAL PRODUCTS, Inc. Sept. 14, 1954, No. 26672/54. Drawings to Specification. Class 38(5) The Specification describes and shows the circuit-breaker of Specification 715,423 but the claims differ. Specification 690,530 also is referred to.
Patent GB-660021-A (GB)
Title: Continuous esterification process
IPC: B01J14/00
Filed: 1948-10-15
Abstract: Esters are made by passing a mixture comprising a monohydric alcohol, a relatively nonvolatile carboxylic acid, acid anhydride, acid ester or neutral ester of a relatively volatile alcohol, and an esterification catalyst, concurrently and consecutively through a series of at least three heated zones, introducing an entrainer into the mixture in the heated zones, and withdrawing vapour therefrom. By a "relatively volatile" alcohol is meant one that is more volatile than the monohydric alcohol and by a "relatively non-volatile" carboxylic acid is meant one whose volatility is sufficiently low to permit removal by distillation of the water or the alcohol produced without removing this acidic reactant from the system.  Reaction may be started with an excess of acid and quantities of alcohol added through the stages so that an excess is present at the end or an excess of alcohol may be used throughout.  When lower alkyl esters are made the entrainer is advantageously the alcohol itself, p otherwise separate entrainers such as aromatic hydrocarbons of 6-8 carbon atoms are used.  An inert gas may be passed through the system.  Many acids and anhydrides are specified, including phthalic and maleic acids and anhydrides, sebacic, lactic, salicylic, stearic and malonic acids.  Many monohydric alcohols are specified including methyl, amyl, octyl, cyclohexanol, phenyl- and methoxy-ethanol.  Acid esters, e.g. mono-esters of the specified dicarboxylic acids may be esterified and the dicarboxylic acid or anhydride may first be converted to the mono-ester by a normal batch process before complete esterification by the process of the invention.  Mixed esters may be made.  Esterification catalysts are of conventional type, sulphuric acid is preferred, in concentration of 0.05-2 per cent, particularly 0.2-0.5 per cent.  The process may be effected in a vessel divided by at least two partitions into at least three compartments communicating consecutively with one another, so that a long path for the reactants is provided.  Conveniently the partitions do not reach the roof of the vessel so that a common vapour pipe takes the vapours to a condenser where water and entrainer are recovered.  Preferably individual compartments have a greater length than width.  In examples, phthalic anhydride is monoesterified in a batch process with (1) and (2) 2-ethyl-hexanol; (3) n-butyl alcohol; (4) 3,5,5-trimethy-hexanol; and (5) methanol in the presence of sulphuric acid as catalyst and then converted to the diester by the process of the invention using benzene in (1), (2) and (4) and excess alcohol in (3) and (5) as entrainer; in (6) dibutyl sebacate is prepared in a similar reaction to that of (3), using sebacic acid in place of phthalic anhydride.
Patent GB-763972-A (GB)
Title: Improvements in or relating to flexible couplings for pipes
Inventor: GILLETT THOMAS
IPC: B29C43/10
Filed: 1953-09-30
Abstract: 763.972. Laminated materials. ANDRE RUBBER CO., Ltd., and YARROW & CO., Ltd. Sept. 30, 1954 [Sept. 30, 1953], No. 26858/53. Class 140. [Also in Group XXVIII] A resilient member 1, Fig. 7, having an outwardly-directed loop 2 flanked by inwardlydirected loops 3 and formed of synthetic rubber or other elastomeric compound reinforced by layers of textile fabric such as of nylon is formed in a diametrically-split mould 12 axiallydirected bias cut nylon fabric pieces of the shape shown in Fig. 11 being arranged in layers around the inner mould periphery with contiguous members of a layer butting or slightly overlapping and members of each layer covering the joints between members of the adjacent layer or layers. The nylon fabric pieces have been previously coated and impregnated with an uncured synthetic rubber compound, e.g. neoprene, as by clipping in a solution thereof and/or by friction-calendering therewith; alternatively a dough of the compound may be spread on the fabric. Layers of the compound may be inserted between some of the fabric layers, the inner and outer ones of which may also be faced with compound. Compression and curing of the member 1 is then effected by injecting steam under pressure into the mould, which has air vents 9. Mould end plates 11 may also be heated.
Patent GB-1104047-A (GB)
Title: Improvements in or relating to pipe couplings
IPC: F16L27/113
Filed: 1965-06-24
Abstract: 1,104,047. Joint-making packing; pipe joints. ETERNIT S.A. 24 June, 1965 [3 July, 1964], No. 26914/65. Headings F2B and F2G. A pipe joint comprises a pipe 4, a coupling sleeve 1 and an elastic packing ring 2 located in a groove in the sleeve and having a first annular lip 7 engaging the sleeve and a second annular lip 5 which has, in its unstressed state, a free end 6 normal to the sleeve axis and is deformed from its free position shown on the right-hand side of the drawing to that shown on the lefthand side to engage the pipe 4 when the latter is introduced into the sleeve. A step 3 for the pipe ends is housed in a central groove in the sleeve.
Patent GB-634308-A (GB)
Title: Transportable apparatus for the electric flash butt welding of heavy articles, particularly railway rails
IPC: B23K11/04
Filed: 1946-09-06
Abstract: 634,308. Welding railway &c rails. SCHLATTER, H. A. Sept. 6, 1946, No. 26920. Convention date, Sept. 12, 1945. [Class 83 (iv)] Portable apparatus for flash butt welding rails &c. comprises a holding-device for the rail ends and a co-operating transformer unit embodying means for moving the rails during heating, fusion and upsetting. The holding- device comprises doubly joggled channel girders 1, 1<SP>1</SP>, yoked at their ends, supporting clamps 6, 17 secured to the rail ends by lateral fishplates and screws 7<SP>1</SP>, 8<SP>1</SP>, 9<SP>1</SP>, 18<SP>1</SP>, 19<SP>1</SP>, 20<SP>1</SP> and vertical screws 14, 15, 25, 26. The clamps 6, 17 have anchor bolts 16, 27 and the girders are apertured for viewing the joint. The transformer 30 is mounted on a chassis 29 and has insulated tongs 31, 31<SP>1</SP>, 32, 32<SP>1</SP>, screw operated to clamp the rails A, B by pivoted contacts in the cranked region 5<SP>1</SP> of the chuck. The chassis 29 carries a cooling set 73, a fixed abutment 43 for engaging the anchor bolt 16 of one clamp 6, a movable tappet 47 for engaging the other clamp 17 and manual, electromotive and fluid pressure means for operation of the movable tappet 47 through connecting links 51 from a crosshead 53. A screwed shaft 54 reciprocates the crosshead 53 when rotated by a splined worm-wheel 65 driven by the electromotor 70 or directly by an abutment 61 driven by a hand wheel 62. The shaft carries a piston 56 in a cylinder 57. In operation, with the rail ends clamped, the transformer unit is registered with the anchor bolts 16, 17 and the contact tongs 31, 32, 31<SP>1</SP>, 32<SP>1</SP> secured. The electromotor 70 reciprocates the tappet 47 for heating up and is run at reduced speed for fusing off. An abutment on the tappet 47 admits pressure fluid to the cylinder 57 and directly moves the crosshead 53 for upsetting. A further abutment switches off the transformer current. In a modification the rails may be reciprocated by a hand wheel 72 driving the worm wheel 65.
Patent GB-189598-A (GB)
Title: Improvements in or relating to drawings and illustrations
IPC: B44F1/10
Filed: 1921-10-11
Abstract: 189,598. Sutphen, R, M., and Middleton, A. Oct. 11, 1921. Diagrams.-Line drawings and illustrations are prepared on a translucent sheet with one aspect of the subject as usual in black or colour or both on one side of the sheet, and another aspect of the subject in register on the reverse side of the sheet to give a composite view when seen by transmitted light. Fig. 3 shows the two sides of a sheet prepared with a botanical subject. Chemical action may be represented by colours, and chemical products may be represented by spectrum colours or lines. Effects of illumination or electric discharges may be produced by removing part of the back of the sheet. Effervescence may be represented by pricks or small circles. Spirals or curved lines may be used to givo the illusion of rotation in mechanical subjects. The second aspect may be an interior or sectional view. The sheet may be formed of two or three plies and the colouring and removal of the back surface effected on the separate plies, as shown in Figs. 8 and 12.
Patent GB-931795-A (GB)
Title: Junction transistors and method of fabricating same
IPC: H01L29/00
Filed: 1959-08-07
Abstract: Alloys of the following weight compositions are used in the manufacture of semi-conductor devices (see Group XXXVI): 97% indium with 3% arsenic, phosphorus, or antimony; 97% tin with 3% arsenic. Reference has been directed by the Comptroller to Specifications 852,904, 865,471 and 884,463.
Patent GB-922714-A (GB)
Title: A method of progressively induction heating metal strip and an apparatus for performing the same
IPC: C21D9/60
Filed: 1959-08-07
Abstract: 922,714. Heating metal strip by electromagnetic induction. DEUTSCHE EDELSTAHLWERKE A.G., and ALLGEMEINE ELEKTRICITATS-GESELLSCHAFT. Aug. 7, 1959 [Aug. 9, 1958], No. 27034/59. Class 39 (3). In a method of progressively inductively heating metal strip of a thickness less than 0.5 mm., e.g. 0.1 to 0.35 mm., the strip 18 is first inductively heated to a temperature somewhat below that required by means of a medium frequency current, e.g. between 5,000 and 10,000 c.p.s., passing through coils 17, and is then rapidly heated to the required temperature by means of a higher frequency current, e.g. more than 10,000 c.p.s., passing through coil 17<SP>1</SP>. The frequency of the current in coil 17<SP>1</SP> is preferably twice that used in coils 17. This heating method may be used for drying films of varnishes applied to a metal strip, for annealing or tempering or homogenizing the strip, or for flowing electro-deposited layers of tin on the surface of low carbon steel strip. The coils 17 may be supplied in parallel from a bus-bar with current generated in a rotary converter while coil 17<SP>1</SP> is connected to the busbar through static or rotary frequency changers. As shown, the strip is finally immersed in a quenching bath 22.
Patent GB-838781-A (GB)
Title: Improvements in electric motor control systems
Inventor: PECK PHILIP ELWORTHY
IPC: H02P5/68
Filed: 1955-09-22
Abstract: 838,781. Control of several D.C. motors. BRITISH THOMSON-HOUSTON CO. Ltd. Sept. 18, 1956 [Sept. 22, 1955], No. 27100/55. Class 38 (3). Motors 1, 2, which may drive the top and bottom rolls of a rolling mill, are supplied from Ward-Leonard generators 3, 4, and 5, 6, having field windings 8 . . . 11 supplied from a main exciter 14. In order to limit the armature currents when the motors are being accelerated, a voltage is obtained from the series field windings 7 of the generators 5, 6 and is passed through one or other of the control windings 41, 41<SP>1</SP>, of a magnetic amplifier 42. Rectifiers 43, 43<SP>1</SP>, are poled to ensure that the appropriate control windings are energized according to the direction of the armature current. The output voltage of the magnetic amplifier is added to a voltage proportional to that of the main exciter 14 and obtained from potentiometer 45, the combined voltages being balanced against a reference voltage derived from potentiometer 46. When the combined voltages exceed the reference voltage (indicating that a desirable motor armature current has been exceeded) a control field winding 47 on a pilot exciter 19 is energized to reduce the forcing of excitation of the Ward-Leonard generators. A rectifier 48 ensures that the winding 47 is energized only when the combined voltages exceed the reference voltage. Protection against excessive regenerated currents in the Ward-Leonard circuits is afforded by a control winding 50 on a pilot exciter 23. This winding is energized from a magnetic amplifier 53 having control windings 54, 54<SP>1</SP>, responsive to the voltage developed across the generator field windings 7. The output of the amplifier 53 is balanced against a reference voltage obtained from potentiometer 46. The winding 50 is adapted to maintain or limit the rate of decrease of generator voltage and so limit the regenerated current from the motors. A further arrangement for providing against excessive current in the Ward- Leonard circuit is afforded by a field winding 55 on a pilot exciter 36 which controls the excitation of the motors. The winding 55 is energized when the output of magnetic amplifier 42 exceeds a reference voltage obtained from potentiometer 46, and is adapted to increase or maintain the excitation of the motors. The magnetic amplifiers 42, 53, have bias windings 58, 59, supplied from a source of constant voltage, and windings 61, 62, which provide a control effect dependent upon the speed of the motors. Specifications 835,732 and 835,734 are referred to.
Patent GB-1145205-A (GB)
Title: Improvements in or relating to cathode ray tubes
Inventor: THOMPSON ROGER ROSS
IPC: H01J29/52
Filed: 1966-06-17
Abstract: 1,145,205. Electron guns. ENGLISH ELECTRIC VALVE CO. Ltd. 2 May, 1967 [17 June, 1966], No. 27145/66. Heading H1D. The electron gun of a cathode ray tube, e.g. a display tube or a television camera tube, has an additional apertured electrode 7, termed the " limiting grid," interposed between the cathode 1 and control grid 3 to effectively limit the area of the cathode from which electron emission occurs in substantially parallel paths. The beam formed is focused by a conveying lens system into a well-defined beam spot whose sharpness is independent of the cathode current. Preferably the converging lens system serves also to accelerate the electrons and is constituted by a helical conductive deposit 66, e.g. of carbon, on the envelope which may be conical. In operation, the " limiting grid " may be held at a voltage of between Œ 10 volts relative to the cathode and a modulating potential applied to the control grid, or the control grid is held at a fixed voltage and the potential applied to the " limiting grid " modulated. In a further alternative the potentials applied to both the " limiting grid " and the control grid may be modulated.
Patent GB-391684-A (GB)
Title: Improved apparatus for the manufacture of cigarettes with mouthpieces
IPC: A24C5/47
Filed: 1932-09-30
Abstract: 391,684. Cigarettemaking machines. UNIVERSELLE CIGARETTENMASCHINENFABRIK J. C. MLLER & CO., 48, Zwickauerstrasse, Dresden, Germany. Sept. 30, 1932, No. 27222. Convention date, March 8, 1932. [Class 130.] In making cigarettes with mouthpieces of wadding, crepe paper, or the like, the paper shell a is threaded on one end of a spoon b and the mouthpiece f is inserted into the other end of the spoon b, which is then fed into a position in line with a fiillng-spoon i, so that the shell with mouthpiece can be pushed on to the latter spoon and filled with tobacco, the spoons b, i being carried on discs c, k, which are rotated intermittently in quarter revolutions. The length of paper shell is cut by knives e, and the mouthpiece by knives h, and removal from the spoon b to the spoon i is effected by a plunger m. Further rotation of the disc k then brings the shell opposite the tobacco rod o, which, after insertion into the shell, is severed by a knife q. The shell is held on the spoon during filling, by a plunger r actuated by a cam t. A lever v, pivoted at u<1> to the plunger and actuated by a cam x, carries a hook member w which is brought in front of the severed length of tobacco rod, so that as the plunger r is withdrawn, the hook w inserts the filling into the shell and withdraws the finished cigarette from the spoon. The spoons may have a reciprocating instead of rotating movement.
Patent GB-633797-A (GB)
Title: Improvements in or relating to the production of dies for machine tools
IPC: B21D37/20
Filed: 1947-10-10
Abstract: 633,797. Making dies. AKTIEBOLAGET ELEKTROLUX. Oct. 10, 1947, No. 27261. Convention date, Oct. 17, 1946. [Classes 83 (ii), 83 (iii) and 83 (iv)] Punching ; broaching.-A punching die is made by embossing a first pad with a punch, using the pad as a die in co-operation with the punch to punch an auxiliary die ; and using the auxiliary die in co-operation with the punch to form a final die for use with the punch in a press. The auxiliary die is used to build up a laminated die which is used for the final punching. The auxiliary die 15 is a steel strip punched by using a resin-bonded fabric pad 13 embossed by the punches 10 as a die. The die 15 is used to punch a succession of strips which are assembled by riveting or welding to form a single die 17. The strips may be punched by using the preceding punched strip as a die, the strip 15 being partly filled with aluminium or brass punchings which support the laminµ-punchings holding the laminae in alignment. The die 17 is mounted on a faced block 19 and is used to punch the final steel die 18. The punch ends are upset, used to broach the die 18 and when re-ground co-operated with the hardened and ground die 18. In a modification small holes are drilled in the pad 13 within the punch outlines to produce a sharp embossing. In a further modification the final die is severed into separate dies.
Patent GB-853221-A (GB)
Title: Aqueous solutions suitable for use as metal working fluids
IPC: C10M173/02
Filed: 1959-08-11
Abstract: A lubricant and coolant for use in metal-working is an aqueous solution comprising (a) a major proportion of water, (b) 0.2-10% wt. of an alkali metal nitrite and (c) 0.02-1% wt. of a substance of formula:  <FORM:0853221/III/1> wherein R is a C6-C18 alkyl group, M is an alkali metal and n is an integer from 1 to 4, the weight ratio of (b) to (c) lying between 1:1 and 11:1.  The solution may also contain surface active agents, dyes, perfumes, bactericides, sequestering agents and defoaming agents.  Surface active agents mentioned are polyglycols, their ethers and esters, polyoxyethylene-substituted fatty acid amides and partial esters of sorbitol anhydrides or polyoxyethylene derivatives of such partial esters.  In the examples, metal-working fluids are described which are aqueous solutions of sodium nitrite, sodium lauroyl sarcosinate and a polyglycol derived from ethylene oxide and propylene oxide. The effect of omitting ingredient (b) or (c), or replacing it by borax, is described.
Patent GB-1031218-A (GB)
Title: Improvements in or relating to bar turning machines
Inventor: JENNINGS RICHARD PRIOR
IPC: B23D25/04
Filed: 1963-07-11
Abstract: 1,031,218. Turning; shearing. SIR JAMES FARMER NORTON & CO. Ltd. Oct. 12, 1964 [July 11, 1963], No. 27461/63. Headings B3B, B3T and B3W. In a bar turning machine, Figs. 1 and 2, (not shown), bar cutting off means are provided to cut the bars to length before they enter the turning head and means are incorporated to measure the length of the bar to be cut and control the cutting-off means. The length of bar 11 to be cut is determined by a feed roll unit 15 incorporating a cam-operated switch, which, through a variable ratio drive unit controls the revolutions of the feed unit and thus the length of the bar cut. A carriage 16, located immediately after the feed unit 15, is reciprocatable on guide bars 27 by hydraulic means and has hydraulically actuated bar gripping jaws 33. A cutting device 17 spaced axially of the jaws comprises shearing elements 35 carried on pivotable arms 36 which effect radial cutting and releasing movements of the shear elements by the action of bell-cranks 39 as the carriage is moved back and forth. The whole operation of the machine may be effected automatically by means of time switches, relays &c., to sequentially actuate the various means.