baber/WOPTO huggingface dataset:
Patent GB-1292579-A (GB)
Title: Improvements in or relating to safety devices for passenger-carrying vehicles
Inventor: SANDERSON LOUIS WILLIAM
IPC: B60R21/08
Filed: 1971-07-02
Abstract: 1292579 Crash restraint systems; anti-dazzle screens L W SANDERSON 2 July 1971 31068/71 Headings B7B and B7J A safety device for restraining a vehicle occupant includes a flexible transparent sheet 11, adapted to be mounted in the vehicle roof, and movable either automatically, during collision, or manually. In a first embodiment the sheet is connected between bars 12 and 13, bar 12 being mounted in guides 14 in a housing 16 and attached to an elastic cable (18) (Figs. 1 and 3 not shown) anchored to the roof for retracting the sheet, and bar 13 being detachably connected to cables 23 wound on a spring-loaded drum 24. A locking arrangement 33, 34, releasable by electrical, hydraulic, cable or other suitable means, holds spring 31 in tension. On operation of the device the locking means 33, 34 is released and drum 24 rotated to wind on cables 23 and move sheet 11 to the operative position. A further cable releasable locking means 36, 37 guards against premature retraction. The lower part of the sheet may be colour tinted so as to act as an antiglare screen. In a further embodiment, the upper end of the sheet connects a self-retracting roller blind mechanism (Fig. 5, not shown) whilst cables 23 pass over pulleys 48, carried by a piston within a cylinder 43, to spring-loaded pulleys 41 which counteract the roller blind mechanism. An explosive charge 49 fires the piston outwardly to withdraw the sheet when required. Catches 47 engage grooves 46 in the piston to prevent premature retraction.
Patent GB-520730-A (GB)
Title: Apparatus for the wet treatment of fibrous materials
IPC: D06C17/02
Filed: 1938-10-27
Abstract: 520,730. Coating webs &c. I. G. FARBENINDUSTRIE AKT.-GES. Oct. 27, 1938, No. 31092. Convention date, Nov. 9, 1937. Addition to 473,549. [Class 140] [Also in Group IV] The perforated oscillating guide drum 13 of apparatus for the wet treatment of fibrous materials in web or sheet form as in the parent Specification has arranged within it a non-perforated roller 5. It may be stationary with a plane cylindrical surface, or it may have longitudinal ribs 16 thereon. Alternatively, it may oscillate, and if so, the oscillations must be irregular or different in phase direction or velocity from the oscillations of the drum 13. The body 5 and drum 13 may be coaxial with one another. The web 1 to be treated is passed over guide rolls 2, 3, 14 so arranged that the length of the web in contact with the drum 13 is a relatively large part of the immersed length of the web.
Patent GB-191238-A (GB)
Title: Dental articulator
IPC: A61C11/02
Filed: 1921-11-22
Abstract: 191,238. Weiss, M. Nov. 22, 1921. Teeth, artificial. - In a dental articulator a stationary part a representing the upper jaw is supported on a rod r having a ball and socket mounting t in a heavy base s, and fixed by a clamping screw u. Attached to the part a are a pair of blocks w shaped on the underside to conform to the glenoid fossµ of the temporal bone. These blocks are interchangeable, a range of four sets being provided to embrace the normal requirements; adjustment for separation is provided by transverse slots z in which move the positioning screws y. The stud ends of the upper bow q are gripped in sockets o on a yoke l carried by a slide piece m working in a guide k on the stationary member a. Interchangeable stems 12 having extremities 10 shaped to correspond to the condyles of the inferior maxillary bone, are detachably mounted on a movable part representing the lower jaw. Two arms b on the movable member are separated by a bar c, which may be adjustable in length, and carry cheek-plates d with an adjustment for height, these cheek plates serving to hold the legs of the lower bow e in sockets g. The lower bow e is made with a toggle-jointed construction to allow the separation of the stud ends to be varied. The movable member is flexibly held by a pair of tension springs 14, 15 in front, and a pair of tension springs 18, 19 and a pair of blade springs 22, 23 behind the knuckle joint. The front springs 14, 15 are provided with an adjustment for tension. A clip 28 to carry a pencil is attached to the movable member in order that the setting of the blocks w and knuckles 10 may be checked by tracing the condyle path on a card.
Patent GB-1461116-A (GB)
Title: Voltage dependant resistors of sintered ceramic material
IPC: H01C7/112
Filed: 1974-07-15
Abstract: 1461116 Voltage-variable resistor C CONRADTY 15 July 1974 [18 July 1973] 31233/74 Heading H1K [Also in Division C1] A voltage-variable resistor comprises: 50-90 mole per cent ZnO; 0À1-40 mole per cent (preferably 1-8%) ZnF 2 ; 0À1-40 mole per cent (preferably 2-10%) MeO, where MeO is one or more oxides of Mg, Ca, Sr, Ba, Fe, Mn, Pb, B, Al, Co, Ni, Sb or Bi. The resistor has a characteristic of the form V=B.I<SP>1/n</SP>, the constant B being determined mainly by the ZnO : ZnF 2  ratio and the constant n being determined mainly by the proportion of MeO present. Conductive silver or flame-sprayed brass contacts complete the device.
Patent GB-1489863-A (GB)
Title: Apparatus for connecting the ends of two pipes
IPC: F16L27/053
Filed: 1976-07-27
Abstract: 1489863 Pipe joints; seals HYDROTECH INTERNATIONAL Inc 27 July 1976 [6 Aug 1975] 31289/76 Headings F2G and F2B Apparatus for connecting the ends of two pipes 8 includes a member 4 having an annular spherically-shaped enlarged portion 12 and a member 6 having a housing 18 with a surface 20 in which the portion 12 is seated and which allows for relative misalignment between the pipes 8, a seal 50 being disposed within the housing 18 to seal with the portion 12, and this portion being held locked in a desired position by arcuate cam members 22 each of which are movable along a frusto-conical face 24 on the housing 18 to engage the enlarged portion 12 by tightening nuts 49 on bolts 44 acting through a ring 38. The position of the ring 38 is such that the cam members 22 are initially held clear of the enlarged section to allow its insertion into the housing 18 and the movement of the cam members 22 into engagement with the portion 12 is guided in each case by a fastener 28 secured in the housing 18 and engaging a slot 26 in the respective cam member 22. The seal 50 (Fig. 2) includes an annular member 52, e.g. of metal, having a wedge-shaped portion 54 which may be moved axially towards the cam members 22, by means of pins 62 to wedge the seal between the housing 18 and the enlarged portion 12. A further seal 84 may be provided to enclose a chamber 86, Fig. 3 (not shown), connected to a conduit 88 by means of which the effectiveness of the seal 50 may be tested. An alternative form of seal is also shown, including an annular elastomeric member 70 disposed within a groove 68 connected to a port 74 in the housing by means of which pressurized fluid may be supplied to compress the seal member 70 into engagement with the enlarged portion 12. In a further alternative arrangement, the cam members 22 may act upon a rigid ring to compress an elastomeric seal held in a recess within the housing 18.
Patent GB-208548-A (GB)
IPC: B04B3/00
Filed: 1923-12-13
Abstract: 208,548. Plauson's (Parent Co.), Ltd., (Assignees of Plauson's Forschungsinstitut Ges.). Dec. 13, 1922, [Convention date]. Strainer separators.-A centrifugal separator has a rotary filter wall 7 whose periphery is in spring engagement with a ring 16 so that when the apparatus is rotated solid material is discharged from a peripheral slit. The sieve 7 may consist of superposed perforated or slotted plates or of wire netting, and material is distributed over it by a distributor 8 with plane or spiral ribs 9. Below the rotating sieve is a fixed vessel 11 for the liquid passing through the sieve; above the sieve is a lid 14 with a central opening 15 and a spring ring 16 of thin sheet metal. The material enters the opening 15 and is scattered, by the distributor over the sieve 7. The liquid passes through the sieve into the vessel 11 and is drawn off through the pipe 12. The solids are thrown to the periphery of the sieve 7 and the ring 16 until the centrifugal pressure produces an annular opening through which the solids pass into the casing 13. The angle between the sieve and the ring may be varied, or the lid may be engaged directly by the rim of the sieve 7, in which case the engaging parts are made thin so that the sieve acts as the spring itself. The areas of the engaging parts may be varied by shaping as in Fig. 4. The spring members may have radial slits or may be laminated. The upper part of the apparatus may be formed as a filter surface to rotate with the sieve 7, and the annular opening may be obtained against the action of a weight or spiral spring.
Patent GB-428232-A (GB)
Title: Improvements relating to carding engines
IPC: D01G15/26
Filed: 1933-11-11
Abstract: 428,232. Carding-engines. GILLJAM, H. K. J., 19, Wilhelm Straterstrasse, Rheydt, Germany, and GARNETT, Ltd., P. & C., Wharfe Works, Cleckheaton, Yorkshire. Nov. 11, 1933, No. 31462. [Class 120 (i)] In a carding-engine of the kind in which the material is fed between feed rollers C and a licker-in D over a pair of working rollers E to a down-striking main cylinder F which is cleared by a doffer G and provided with a fancy, a quick running working roller J is provided in combination with the doffer G and cylinder F and rotating in the same direction as the cylinder F. The teeth of the roller J are opposed to those on both the swift F and the doffer G. The fancy H is arranged common to the roller J and swift F.
Patent GB-1113524-A (GB)
Title: Valve actuator for aerosol dispensing containers
Inventor: SEAQUIST NELS WERNER
IPC: B65D83/16
Filed: 1965-07-23
Abstract: 1,113,524. Discharging liquids by gaseous pressure. PITTSBURGH RAILWAYS CO. [trading as SEAQUIST VALVE CO. July 23, 1965, No.31536/65. Heading F1R . The fingerpiece 12 of an aerosol dispensing valve actuator has an outwardly projecting tab 14 which engages the surface 16 of a surrounding wall structure 22, 24, 28 providing a pivot for the fingerpiece when actuating a dispensing valve. The wall structure and fingerpiece are moulded as one piece, sprues 20 through which thermoplastic material injected into the cavity forming the wall structure connects to the cavity forming the fingerpiece being severed when the actuator is first used. The arcuate wall 28 within which the fingerpiece is located is provided with slots 21, 23 for fingerpiece locating tabs 17, 19. In a further embodiment, Fig. 6 (not shown) the arcuate wall (28) is connected to a single outer wall (22).
Patent GB-173393-A (GB)
Title: Improvements in apparatus for the permanent waving of the hair
IPC: A45D4/06
Filed: 1920-11-08
Abstract: 173,393. Boudou, G. Nov. 8, 1920. Hair-curling appliances.-In apparatus for suspending electric heaters 21, Figs. 1 and 3, for hair waving, in which the flexible leads 20 arewound on spring-drums 14, the latter are removably mounted on a bracket 1, 5 fixed to a wall or vertical support, and the heaters are suspended when in use by means of an adjustable arm 26. The spring-drum casings 14, which are provided with pawl-and-ratchet or friction locking mechanism, are secured by screws 15, Fig. 3, to discs 7 mounted on the bracket 5 and provided with terminals 8 and 9, Fig. 4, which make contact with insulated metal rings on the underside of the casing 14, when the latter is screwed down. A switch 16, Fig. 1, is provided for each pair of heaters, and all the switches are connected to a plug contact 17. The disc 7 may be covered with a lid 18 when the casing 14 is removed for repair. The arm 26, Fig. 3, is mounted on a pivot 24 and fixed by a set-screw 27, and carries at its outer end a transverse swivelling arm 29, Figs. 2 and 3, having upstanding prongs 30 to hold the cables 20 in the required position.
Patent GB-160516-A (GB)
Title: Improvements in liquid heaters
IPC: F24H1/44
Filed: 1919-12-16
Abstract: 160,516. Murphy, R. N. Dec. 16, 1919. Closed solid-fuel stoves; combined and convertible solid and other fuel.-A stove for heating liquids contains a cluster of inter-connected tubes each closed at its lower end and diverging from a common centre. As shown in Fig. 1, such a cluster B is enclosed in a casing A, which may be water-holding. Water is caused to circulate down and up the tubes 27 under the influence of heat, by a baffle 28, Fig. 4, which extends nearly to the closed end. More than one cluster can be used in the outer casing. Air for combustion is preheated in an annular passage 16 at the bottom of the casing. When liquid fuel is used. it is supplied through a pipe 20 opening into a flared pipe 19, which delivers into the annular passage 16. Reference has been directed by the Comptroller to Specification 149,026.
Patent GB-228678-A (GB)
Title: Improvements in and relating to power presses
IPC: F16D11/16
Filed: 1924-09-18
Abstract: 228,678. British Thomson-Houston Co., Ltd., and Dumas, R. Sept. 18, 1924. Clutches, claw.-In clutches for power presses, of the kind in which a radially-moving key engages a keyway in a ring carried by the flywheel, the key way being relieved at its leading edge, a spring-biassed rotary, pivoted, or sliding mask mounted on the ring prevents a premature engaging movement of the key. A hardened ring 5, Fig. 2, mounted in the flywheel 6 has a keyway 4, the leading side of which has the form of a cam 7 to permit gradual engagement of a clutch key 2 radially spring-pressed in the crank-shaft 1. To ensure full engagement of the key 2 with the face 4, premature release thereof is positively prevented by the part 14 of a pivoted mask 8 having a step 13, which must first be engaged by the key to move the mask about its pivot 9 against a compression spring 12 until the faces 4, 13 are in line. In a modification, the mask is in the form of a flanged disc, rotatable on the ring 5 and having projections engaging grooves therein, and is connected to eyes on the flywheel by four tension springs. The flywheel has a light metal guard enclosing the mechanism. In the form shown in Fig. 7, a tangentially-sliding notched bolt 23 constitutes the mask. The invention is applicable also to axially-movable and rocking clutch keys.
Patent GB-847133-A (GB)
Title: Improvements in or relating to a circuit for regulating the speed of d.c. motors
IPC: H02P7/06
Filed: 1957-10-11
Abstract: 847,133. Automatic speed-control systems. PROTONA PRODUKTIONSGESELLSCHAFT FUR ELEKTOAKUSTISCHE GERATE G.m.b.H. Oct. 11, 1957 [Oct. 17, 1956], No. 31807/57. Class 38 (4). In a system for a fractional horsepower D.C. motor, a centrifugally operated contact breaker or potentiometer is connected to change the resistance of a transistor the emitter-collector path of which is in series with the motor. The negative potential applied to base B through limiting resistor R 2 , Fig. 3, is removed by the opening of contacts KU when the desired motor speed is exceeded and the emitter-collector path is in consequence interrupted or suffers a large increase in resistance to effect the necessary control. Resistance R 1  provides a limit to the current decrease. Resistor R 3  and rectifier D ensure that the base is held positive to the emitter. The resistor R 1  may increase with voltage or current to compensate for changes in source voltage and additional centrifugal contacts and shunt resistors may be provided to permit the motor to be controlled at several different speeds.
Patent GB-1462891-A (GB)
Title: Digital filter
IPC: H03H17/00
Filed: 1974-07-18
Abstract: 1462891 Active filters TELECOMMUNICATIONS RADIOELECTRIQUES ET TELEPHONIQUES 18 July 1974 [20 July 1973] 31889/74 Heading H3U A digital filter having a shift register delay 3 1  ... 3 N  from tapping points on which signals are fed back to a combining circuit 1 connected to the shift register input via a delta modulator 6, 7, 8 0  is characterised in that the weighting circuits of the feedback paths are constituted by dynamic expanders 8 1  ... 8 N ,a similar expander, 80, being included in the feedback path of the delta modulator. The tapping points are also connected via similar expanders 9 0  ... 9 M  to an output combining device. Various simplifications may be obtained by combining some of the elements common to the various expanders. In a first simplification, Fig. 4 (not shown), the separate output integrators 19, of the expanders 8 0  ... 8 N  are replaced by a single common integrater (20) which also serves as the combining circuit 1. A similar arrangement is used for the output circuits 9 0  ... 9 M , 2. A further simplification is described with reference to Fig. 6 (not shown) in which the separate analyzer circuits 12 are replaced by a single analyzer (30) common to all expanders. In a still further simplification, Fig. 7 (not shown) a single expander is used on a time sharing basis in place of the separate ones. In another modification Fig. 5 (not shown), the expansion characteristic of at least one of the expanders is different from that of the expander of the delta modulator.
Patent GB-1345435-A (GB)
Title: Moulds for moulding devices for use in the manufacture of moulded plastics hollow articles
IPC: B29C33/00
Filed: 1971-07-08
Abstract: 1345435 Press moulding containers K MAGERLE 8 July 1971 [21 Aug 1970] 32129/71 Heading B5A The head of a container is moulded on to a prefabricated container body 26 (Fig. 1) by first and second mandrels 352, 316 engageable within a cavity member 120. As described for moulding collapsible polyethylene tubes, the moulding machine comprises a number of first mandrels 352 supported on a turntable 20 rotated stepwise. The cavity member 120 and a divided collar 306 defining a screw-thread, are mounted on a tool holder 302 that is vertically reciprocable on rods 303. The tool holder 302 supports a horizontally reciprocable slide 312 carrying the second mandrel 316 screwed into a block 319 guided for vertical movement by pins 320 engaging in slots 322 in the slide 312. Grooves 318 in the block 319 receive the arms of a rocker 324 engaged by a pin 338 and claw 336 controlled by an hydraulic (or pneumatic) cylinder and piston 344, 342. Operation.-With the slide 312 and tool holder 302 positioned as shown in Fig. 1, a prefabricated tube 26 is positioned on the first mandrel 352, the divided collar 306 opened and a material feeder 350 lowered to feed molten polyethylene 362 into the cavity member 120. As the material feeder 350 is withdrawn, the polyethylene 362 is nipped from the feeder, the collar 306 is closed and the tool holder 302 lowered. Simultaneously the hydraulic cylinder 344 moves the piston 342 to the right. The piston 342 urges the claw 336 and, by means of a spring 340, the pin 338 to the right to pivot the rocker 324 and so lower the second mandrel 316, while the slide 312 is moved by a spring 346. The second mandrel 316 is thereby lowered to engage the first mandrel 352 (see Fig. 4) and together with the cavity member 120 moulds the polyethylene on to the container body 26 to form a screw-threaded head. After a cooling period, the collar 306 is opened, the tool holder 302 is raised, and when free of the container head a switch 356 actuated by a post 354, operates the hydraulic cylinder 344 for withdrawal of the slide 312, second mandrel 316, by means of claw 336. The second mandrel 316 and its support 314 are replaceable by mandrels of other diameters, or by a plurality of mandrels for forming simultaneously a number of apertures in the container head. The machine control is effected by solenoid valves and electric circuits. U.S.A. Specification 3,313,875 is referred to.
Patent GB-660576-A (GB)
Title: Improvements in or relating to means for providing a measurement of the speed of an electric motor
IPC: G01P3/42
Filed: 1942-08-08
Abstract: 660,576. Control of motors. SPERRY CORPORATION. Aug. 8, 1942. No. 32144/47. Divided out of 660,551, [Group XXXVIII]. [A Specification was laid open to inspection under Sect. 91 of the Acts, Aug. 11, 1942.] Class 38 (iii). [Also in Group XXXVIII] In a method of measuring the speed of an electric motor, a power winding of the motor is connected as one arm of a Wheatstone bridge circuit the other arms of which have impedences of such values that the bridge is balanced when the motor is running at a particular speed, an out of balance voltage being employed as a measure of other speeds. The system may be applied to a twophase A.C. motor wherein a back e.m.f. is developed in one phase winding, or to a, D.C. motor which utilises the armature as the relevant power winding. A voltage, dependent on the speed of the servomotor, may also be applied to an auxiliary exciting winding of a generator to effect control of a Ward Leonard system. As shown, one phase winding 93 of a two-phase servomotor 8 is fed separately from an A.C. source, while the other winding 92 is fed from the secondary winding 89 of a transformer and receives signals which are phasedisplaced relative to those in winding 93. The bridge-circuit comprises the winding 92 and a low resistance 102 as the first and second arms respectively, an inductance 99 and resistance 100 in series as the third arm, and a resistance 101 as the fourth arm. The impedances of the third and fourth arms of the bridge are respectively proportional to, but considerably greater than, those of the other two arms in order that they shall absorb only a small part of the power taken by the motor. The output speed voltage is taken from leads 103, 104 connected across the bridge and may be fed back to the source of the input signal to provide an auxiliary control or anti-hunting term to modify the action of the system. Alternatively the speed voltage may be applied to a speed-indicating instrument either of the voltmeter or crosswire type. In a modification the bridge network is obtained by using a tapped field winding of the motor to form two arms of the bridge and connecting two proportional impedances across the field winding to form the other two arms, the tapping point on the field winding being such that the latter is divided into two parts of unequal resistance, e.g. in the ratio 3 : 1. Specifications 446,665, 489,271, 660,551, [both in Group XXXVIII], 660,552, 660,575, [both in Group XXXV], are referred to.
Patent GB-324916-A (GB)
Title: Improvements in and apparatus for the treatment of salt masses
IPC: C01D9/02
Filed: 1928-11-05
Abstract: 324,916. Johnson, J. Y., (I. G. Farbenindustrie Akt.-Ges.). Nov. 5, 1928. Drawings to Specification. Solids, treating with liquids.-Salt masses such as caliche, carnallite, or crude alkali or alkaline earth sulphide melts are lixiviated by passing steam therethrough from above. In carrying out the process the material may be first moistened with water, or water may be heated above 100‹ C. and be passed into the lixiviating vessel with release of the pressure thereon, or the salt masses may be heated above 100‹ C. and be sprayed with water or mother liquor from a previous operation. After lixiviation, the moist mass may be freed of retained solution by compressed air. By employing a series of containers and passing the brines obtained successively through the series with periodical emptying and recharging of the containers the process may be made continuous. Apparatus described comprises in series a lixiviating vessel, a cooling-vessel for the brines, a concentrator the steam from which is returned to the lixiviating vessel, and a erystallising vat from which the cold mother liquor is returned to the concentrator. In examples, first sodium nitrate and then sodium chloride is obtained from caliche; a brine rich in magnesium chloride is obtained from carnallite from which pure carnallite crystallises out, while a residue rich in potassium chloride remains which may be further leached to yield brines from which carnallite and potassium chloride may be separated; and a liquid solidifying to a solid product and containing the bulk of the sulphide is first obtained from a sodium or barium sulphide melt.