baber/WOPTO huggingface dataset:
Patent GB-770485-A (GB)
Title: Improvements in or relating to gas heated appliances
IPC: F16K35/14
Filed: 1955-02-08
Abstract: 770,485. Reciprocating generators. BOSCH GES., R. Feb. 8, 1955 [Feb. 16, 1954], No. 3661/55. Class 35. [Also in Groups XI and XXXVII] A magneto-electric igniter for igniting the pilot burner of a gas-heated appliance (see Group XI) is operated by pushing the brass bar 59 carrying the core member 58 to the left to separate the member 58 from the attracting magnetic core 57 of the magnetic circuit including yokes 52, 53, of the permanent magnet 51, thereby decreasing the magnetic flux inside the primary coil 54 short-circuited by contact breaker 60, 61 and causes a high current to circulate in the said coil, continued movement of the bar 59 operating the arm 63 to open the contact breaker 60, 61, to produce a sudden interruption of the current in the primary coil, thereby inducing a high voltage impulse in the secondary coil 55 connected across the spark gap. A condenser C is connected across the contacts 60, 61.
Patent GB-671144-A (GB)
Title: Improvements in or relating to centrifugal separators for clarifying liquids
IPC: B04B1/18
Filed: 1950-02-14
Abstract: 671,144. Centrifugal separators. NYROP, A. Feb. 14, 1950, No. 3749/50. Class 23 In a centrifugal separator having an axially-displaceable piston 6 within the bowl 1, 2 for controlling the intermittent discharge of solids through peripheral apertures 4 in the bowl which is divided into compartments 40-43 by two sets of co-axial frusto-conical partitions 10-12 and 17-19, each set of partitions is secured to the bowl and the piston respectively, so that when the apertures are closed the complementary partitions abut at their largest diameter and when the apertures are opened by the piston the partitions associated therewith move away from the other partitions to define gaps therebetween and some of the partitions are provided with ports so that when the apertures are closed the liquid being treated is circulated in sequence from the inner to the outer compartment and substantially traverses the full length of each compartment. The piston is lifted to close the ports 4 by liquid fed to a chamber 34 from a pipe 31. The chamber 34 is exhausted through a valve 7 which is normally closed by the centrifugal forces acting thereon and opened by liquid supplied through a pipe 35. The discs 11, 17 and 19 have ports 28, 27, 26 respectively near their inner edges so that the clarified liquid may flow to a stationary discharge impeller 25. The periphery of the partitions may have corrugations, incurvations or notches to provide passages for the escape of the liquid as the sludge accumulates or with passages permitting a restricted flow of sludge to the outer part of the bowl.
Patent GB-1034511-A (GB)
Title: Cast iron of high magnetic permability and process of preparing same
IPC: C22C38/00
Filed: 1964-01-29
Abstract: A cast iron of high magnetic permeability has the following percentage composition:-  C 1.75 - 2.3 Si 2 - 4 S up to 0.02 P to 0.05 Mn up to 0.4 Mg 0.025 - 0.05 Fe the balance  and is cast completely white and then annealed to convert the carbon to temper carbon.  The Mg is blown into molten iron of the appropriate composition with an inert gas at a rate sufficient to react Si and Mg with the oxygen, P and S and so remove substantially all the oxygen from the melt.  Reference has been directed by the Comptroller to Specification 678,487.
Patent GB-1494611-A (GB)
Title: Hair curling or waving device
IPC: A45D1/04
Filed: 1976-01-30
Abstract: 1494611 Hair curling tongs BRAUN AG 30 Jan 1976 [1 Feb 1975] 03769/76 Heading A4V [Also in Division H5] Electrically heated hair curling tongs comprise a heating element composed of a plurality of pellets 9 of a ceramic semi-conductor material having a positive temperature coefficient of resistance (PTC) held between two semi-cylindrical copper pieces 5, 6 each connected by a respective conductor 7, 8 and a line 2 to an energy source (not shown), whereby in use a constant voltage is applied across the copper pieces 5, 6 and the PTC pellets 9 heat up to a particular temperature, thereafter the change of resistance of the pellets in response to any temperature change acting to maintain this temperature, a lock of hair may then be engaged around the cylindrical chamber 4 in which the heating element 5, 6, 9 is mounted, and held in place by clip 14 which is pivoted on the handle 1, water held in a removable container 12 passes down a wick 11 to a heating plate 10 adjacent the heating element, thus generating steam which escapes through holes 16 in casing 4 to damp the hair. Other applications include electrically heated hair curling and straightening rods.
Patent GB-586126-A (GB)
Title: Improvements relating to determining distance by means of electromagnetic waves
IPC: G01S13/36
Filed: 1941-10-15
Abstract: 586,126. Radiolocation. STANDARD TELEPHONES & CABLES, Ltd., CHATTERJEA, P. K., and HOUGHTON, L. W. Oct. 15, 1941, No. 3840/43. Divided out of 586,119. [Class 40 (v)] An arrangement for determining the distance of an object by measuring the phase difference which occurs at a receiver between the wave directly received from the transmitter and the wave received after reflection from the object, comprises means for producing and transmitting two frequencies and means for comparing the phases of the beat frequencies between the two transmitted frequencies as received directly from the transmitter and after reflection from the object. A low-frequency oscillator 21 modulates a high-frequency oscillator 22 from which the two resulting side-band frequencies are obtained by filters 23, 24. The outputs from these are passed through amplifiers 25, 26 to transmitters 28, 29 and radiated from antennae TA1, TA2. The output from the amplifier 26 is modulated in frequency by an oscillator 27 and a beat frequency between the two transmitted frequencies is obtained at the output of a modulator 30. After reflection, the two transmitted frequencies are received on antennµ RA1, RA2 and passed through amplifiers 31, 32 to a modulator 33, the output beat frequency from which is amplified in an amplifier 34. When utilizing a fixed beat frequency, the outputs from 30, 34 are rectified by rectifiers R1, R2 and connected in opposition to an amplifier 35, the output of which is used to control the gain of the amplifier 34 in order to keep the outputs from 30, 34 equal or definitely related.' The phase difference between the actual outputs of 30, 34 is determined in a phase meter 36 and the voltages are vectorially added in a voltmeter VR calibrated in terms of distance. When utilizing the variable beat frequency, the output from 30 or 27 may be applied to one deflecting unit of a cathode-ray oscillograph and the vectorial sum of the outputs from 30, 34 is applied to the other deflecting unit. For use in aeroplane to aeroplane location, the transmitting and receiving antennae may be located at each wing tip and have directivity in the direction of travel.
Patent GB-676819-A (GB)
Title: Improvements in or relating to a variable density goggle
IPC: G02C7/12
Filed: 1950-02-15
Abstract: 676,819. Variable density goggles. HANSEN, J. E. Feb. 15, 1950 [Feb. 18, 1949], No. 3861/50. Class 97 (i). A variable density goggle comprises a frame and two pairs of light polarizing elements, one light polarizing element of each pair is rotatable relative to the other element of that pair, the frame has two rims interconnected by a bridge, each rim providing an internal groove for accommodating a pair of said elements and an inner rim for each element, each inner rim has an annular portion loosely fitting the periphery of the element and a single inwardly directed flange, the flange of one inner rim of each pair is disposed between the polarizing elements seated within the inner rims of that pair to position the elements in spaced relation within the groove in each rim of the frame, and each inner rim in which a rotatable element is fitted has an inwardly projecting portion adapted to engage a notch in the edge of said element to prevent rotation of the element relative to the rim. The goggle shown in Fig. 4 comprises split rims 12 interconnected by a bridge 14 and brow-bar 16 and having placquets integral therewith or attached thereto. Each rim has a deep internal groove in which are seated inner rims 72, 74 of L-shape, Fig. 5, these inner rims loosely fit polarizing elements 62, 64 which are held in spaced relation by the flange 88 of inner rim 74. An ear 80 on inner rim 72 projects into a notch in the edge of element 62 so as to prevent relative rotation of the element and inner rim, and a lug 76 extends from the inner rim 72 through a slot in the rim 12 so as to allow rotation of the element 62. The inner rim 72 is also provided with external depressions for engagement by a spring-urged detent in the rim 12, whereby the element 62 is held in its adjusted positions. A projection from the inner rim 74 engages a recess in rim 12 so that this inner rim and the element 64 are held fast. To allow insertion of the inner rims 72, 74, each rim 12 is split at 30. A member hinged to a temple 26 has lugs 32, 34 which enter slots 44, 46 in each rim 12 and a screw 50 threads into a hole in lug 34 to clamp the temple to the rim. In another form, the rotatable polarizing element is disposed to the rear of the fixed element and is rotated by an arm which extends from its inner rim rearwardly and then outwardly so that it is not necessary to provide a slot in the frame.
Patent GB-197396-A (GB)
Title: Improvements in or relating to transmission gearing for machine tools and other purposes
IPC: B23Q5/04
Filed: 1922-02-09
Abstract: 197,396. Fletcher, R. W. J. Feb. 9, 1922. Driving machines; drilling; screws, inserting. - Transmission gearing for machine tools and other purposes comprises epicyclic friction gearing connecting a main shaft to a tool or like carrier of the type in which the friction rollers are only brought into operative driving engagement when the tool &c, is pressed against the work. As applied to the insertion of screws a flexible shaft 10 is connected by a spindle 15 to a conical sun roller 16 which drives similarly shaped planetary rollers 22 loosely mounted in a cage 21 to which is attached a tool-holder 12. The rollers 22 are engaged by a conical member 18. slidably secured by screws 19 and slots to a casing 13 which is prevented from rotating by a handle 14. When applied to a drilling- machine, the sun and planetary rollers are inverted ; the sun roller is attached to the drill spindle, the cage carrying the planetary rollers being driven by the machine spindle, and the conical member is prevented from rotating by hand or by other means such as a lever engaging a stationary part of the machine.
Patent GB-452965-A (GB)
Title: Improvements in or relating to devices for generating a voltage increasing linearly with time
IPC: H03K4/88
Filed: 1936-02-08
Abstract: 452,965. Valve generating circuits. NAAMLOOZE VENNOOTSCHAP PHILIPS' GLOEILAMPENFABRIEKEN, Emmasingel, Eindhoven, Holland. Feb. 8, 1936, No. 3935. Convention date, April 18, 1935. [Class 40 (v)] In a saw-tooth generator in which a condenser 2 is periodically charged gradually through a resistance 4 and discharged abruptly through a tube 3, the rise of voltage across the condenser is made truly linear without the use of saturated valves in the charging circuit by including in the charging circuit a voltage derived from the condenser and acting in opposition to it. In the arrangements described in detail this voltage is obtained from a resistance 13 in the anode circuit of the last of an even number of tubes, the first of which has its grid coupled to the condenser, but it can be obtained from the last of an odd number of tubes if use is made of a multi-grid tube adjusted so that a voltage is set up in its anode circuit in phase with that supplied to its grid. It is shown that the tapping point on the resistance 13 should be adjusted so that the derived voltage is equal to the condenser voltage multiplied by 1+R1/R2 where R1 is the resistance of the charging resistance H and R2 is the resistance of the leak resistance 7 or alternatively that the derived and condenser voltages should be equal, an intermediate point on the resistance 7 being connected as shown to a point which has relatively to the cathode a voltage which is equal to and in phase with that of the grid. Fig. 4 shows a push-pull arrangement for giving to the deflecting plates of a cathode-ray tube equal voltages on either side of a fixed voltage. The charging and anode batteries may be separate, the point 13 being then connected to the resistance 4 through a blocking condenser and the supply battery being connected to the resistance 4 through a high resistance.
Patent GB-161033-A (GB)
Title: An improved combination table and seat
IPC: A47B85/04
Filed: 1920-02-10
Abstract: 161,033. Cox, E. V. Feb. 10, 1920. Tables convertible into seats.-A table, shown in Fig. 1, is convertible into a settee by turning its understructure through a right-angle so as to support the seating elements in position for use as shown in Fig. 5. The table top has fixed parts J, J' beneath which is arranged the fixed settee back K, and between these two parts the seating N is stored when out of use. A hinged extension leaf D of the table top, when out of use, is turned over and stored under an inner leaf F carried by hinged arms G. When in use the seat N is supported at the front by the rail C and at the back by webs or straps 0 arranged as shown in Fig. 5. Hinged legs L, L<1> may be extended as shown in Fig. 1, or folded into the positions shown in Fig. 5.
Patent GB-634839-A (GB)
Title: Bulldozing machine
IPC: E02F3/84
Filed: 1948-02-11
Abstract: 634,839. Bulldozers. LETOURNEAU, Inc., R. G. Feb. 11, 1948, No. 4054. Convention date, Feb. 11, 1947. [Class 68 (i)] In a bulldozer, the tractor chassis is mounted on two pairs of balloon-tyre road-wheels 5, 6 and carries at its rear an engine 11 supplying power to a transmission gear 16 of the constantmesh type including a plurality of control clutches 17. By means of bevel-gears 20 a transverse shaft 18 is driven, each end of the shaft having associated therewith one half of a steering clutch 21, the other half of which is on a shaft rotating in bearings 19 in the wall of a gear housing 3 extending longitudinally of the chassis. On this shaft is a gear-wheel 22 meshing with gear-wheels 24 that in turn mesh with gear-wheels 23 carried on shafts 8 projecting through the housing and having mounted thereon the balloon-tyre road-wheels. The pack arms 30 of the blade 29 extend rearwards on the outside portion of a T-shaped bracket 31 which is pivotally secured to the chassis, the bracket being capable of adjustment about an axis longitudinally of the chassis so as to permit angling of the blade. This adjustment is effected by a rod 34 pivotally secured to the T-bracket and passing through a lug 36 on the engine frame, the rod being threaded at the end and provided with an adjustment nut 37. Vertical adjustment of the blade is effected by a rope 42 dead-ended on the chassis and passing to-and-fro between multiple sheaves 43 on the back of the blade, thence over direction-changing sheaves 40, 47 on the chassis to a capstan 48 driven from the transmission gear through a clutch. To increase the sharpness of turn, disconnection of a steering clutch causes automatic application of the brakes to the wheels on the same side of the vehicle.
Patent GB-119810-A (GB)
Title: Improvements in Envelopes or Cases for Containing Artificial Flies.
IPC: A01K97/06
Filed: 1918-03-09
Abstract: 119,810. Milward & Sons, H., and Bartleet, B. D. March 9, 1918. Needles, pins, and the like, boxes specially adapted for; fittings, internal.-A case for facilitating the putting up for sale of selections of artificial flies comprises a folding wrapper of paper &c. having a series of pairs of parallel slits c adapted to hold packets or envelopes b containing the flies so as to admit of the names on the packets being easily read, a closing flap a<1>, which is passed through slits d or secured by press-buttons or otherwise when the wrapper is folded, and, preferably, side wings a<4> to fold over the edges of the part a<3> and thus prevent accidental escape of the packets b. One section a of the wrapper may be in the form of an envelope to hold gut casts &c. and instructions relating to the flies; or these instructions may be printed on the part a<2> or elsewhere.
Patent GB-194675-A (GB)
Title: Improvements in or relating to apparatus for separating molten glass into mold charges
IPC: C03B7/02
Filed: 1923-02-13
Abstract: 194,675. Hartford-Empire Co., (Assignees of Peiler, K. E.). March 7, 1922, [Convention date]. Delivering molten metal.-An automatic feeder consists of a plunger which reciprocates in an outlet formed in the bottom of a forehearth, a shearing device, and a tube surrounding the plunger, the position of the tube being adjustable to enable the weight of the charges of glass through the outlet to be regulated. The outlet 12 forms a well in the bottom of the forehearth 10, the lower side being restricted by a ring 13. The flow of metal to the well is regulated by a tube 14, of refractory material, which is so positioned that the metal flows through an annular passageway 15 formed between the lower end of the tube and the bottom of the forehearth. The height of the tube above the well 12 can be adjusted to regulate the flow of metal and, therefore, the weight of the charges. The shape of the charges is controlled by a reciprocating plunger 21 which projects through the tube into the well. The height of the plunger above the ring 13 can be adjusted by a screw 30 to assist in varying the shape of the charges. The plunger is reciprocated by a cam constructed with removable lobes, so that the shape of the cam can be altered to enable the shape of the charges of metal to be varied. The charges are severed by shears 22 that are opened by a spring 39 and are closed by an air cylinder 41. Admission of air to the cylinder is controlled by a cam driven from the plunger-cam through a differential gear. Adjustment of the gear enables the relation between the reciprocation of the plunger and the severing of the metal beneath the outlet to be varied. Specification 142,785* is referred to.
Patent GB-621293-A (GB)
Title: Improvements in and relating to sliding and folding doors, especially those of greatsize
IPC: E06B3/48
Filed: 1947-02-14
Abstract: 621,293. Sliding doors. EDUCATIONAL SUPPLY ASSOCIATION, Ltd., LEONARD, J. W., and HOWLETT, A. D. Feb. 14, 1947, No. 4291. [Class 20(iii)] [Also in Group XXXII] In a sliding folding door made up of narrow leaves 4, 5 hinged to one another in pairs which are hung on columns 3 mounted at top and bottom in guide tracks; adjacent columns being connected by one or more pairs of hinged links 9, 10, folding downwards in the plane of movement of the columns, the outer end of the links are secured to the lug 13 of a steel sleeve 14 bonded to a rubber or like resilient material bush 15 which is itself bonded to a horizontal spigot 16 bolted to the web of the column. The flanged outer face 15a of the bush contacts with that of the adjacent column when the door is collapsed, thus preventing the leaves contacting; when the door is fully extended inertia loads are taken by distortion of the bush as sleeve 14 is displaced outwardly.
Patent GB-1089484-A (GB)
Title: Press button electric switch
IPC: H01H3/50
Filed: 1965-02-01
Abstract: 1,089,484. Electrically released switches. E. WIDMAIER. Feb. 1. 1965, No. 4345/65. Heading H2B. The push-button actuator 2 of a switch carries a catch 12 which is engaged to latch the push-button in its depressed position while an electromagnet 16 has an armature 14 which directly engages the catch and is arranged to unlatch the pushbutton when it is energized. The catch is in the form of a spring blade whose free end is biased towards the armature 14 by a tongue 15, the armature is biased by a compression spring 20. Depression of the push-button allows the end of catch 12 to engage beneath the armature 14 from which it can be released by energizing the electromagnet 16. In a modified arrangement (Fig. 5, not shown), the spring blade catch (30) engages instead beneath a fixed projection (29) from which it can be removed by the armature (27- 28) The electromagnet 16 can be readily removed and replaced to bring its connections 22 to a different angular position (Fig. 3, not shown), being attached to a framework 1 of the switch by lugs 17. The bottom of frame 1 may be attached to a mounting bracket by a screw as shown or (Fig. 3, not shown) it can be mounted behind a front panel. The pushbutton 2 has a transparent cap 3 and slides over a P.O. lamp 7.
Patent GB-912252-A (GB)
Title: Telegraph system with automatic error detection and correction
Inventor: ANTHONY HENDRIK CORNELIS
IPC: H04L1/18
Filed: 1961-02-06
Abstract: 912,252. Error-correcting telegraph systems. DE STAAT DER NEDERLANDEN, TEN DEZE VERTEGENWOORDIDG DOOR DE DIRECTEUR-GENERAL DER POSTERIJEN TELEGRAFIE EN TELEFONIE. Feb. 6, 1961 [Feb. 1.5, 1960], No 4368/61. Class 40 (3). A two-way telegraph system in which signals found to be faulty upon reception are corrected by repetition is characterized in that when one station detects an error it transmits to the other station a series of service signals requesting repetition until a similar service signal is received from the second station. When a service signal is received by a station either a repetition cycle is initiated, i.e. transmission of data stops and a service signal is transmitted followed by a repeat of previously transmitted data, or, if the station is currently transmitting repetition requesting signals, a further service signal is transmitted followed by either a repeat of previously transmitted data or by the next in order data signal to be transmitted, depending upon the read-out position of an associated store. The repetition cycle is of four data signals' length, and is always completed, even if a service signal is received during the cycle. In one example, Fig. 1, stations P and Q each comprise a transmitter Z and a receiver O. If signal A is faulty upon reception the receiver printer of Q is blocked for four cycles, indicated by 1, 2, 3, 4 and Q transmits a series of service signals I, the transmission of data being stopped. When station P receives a signal I its printer is blocked for four cycles and it transmits a signal I indicative of the start of a repetition cycle. As Q is currently transmitting repetition requesting signals when this latter signal I is received, Q transmits a signal I followed by data signal a, b, c ... in the case of a transmission path of 140 msec., or followed by a repeated data signal z and signal a, b, c ... in the case of a transmission path of 70 msec., Fig. 3 (not shown). The division of the data signals into groups of n signals by polarity inversion of a certain one out of each n data signals is mentioned. Specification 693,211 is referred to.
Patent GB-282239-A (GB)
Title: Improvements in and relating to rotary tools for cutting out holes, and discs of sheet material
IPC: B23B51/05
Filed: 1927-02-17
Abstract: 282,239. Newman, F. J. Feb. 17, 1927. Drilling-machines; drills and cutters. - A device for cutting out washers, discs or holes from sheet material comprises a body A having a central hole to receive a bolt B passing through an initially formed hole in the material C and provided with a fly nut E for producing the feed pressure. One or more series of tapered sockets a are formed in the body to receive cutters D, some of the sockets being arranged at different distances from the axis of the body to allow the diameter of hole cut to be varied. The outside of the body at F and G is formed square, hexagonal, oval or of other shape to receive a driving spanner or handle, and holes may be provided for a tommy-bar.