baber/WOPTO huggingface dataset:
Patent GB-908660-A (GB)
Title: Improvements in fuel control means
Inventor: KERSHAW PETER LESLIE
Filed: 1959-01-06
Abstract: 908,660. Controlling burners. RHEOSTATIC CO. Ltd. Dec. 31, 1959 [Jan. 6, 1959; May 15, 1959; Oct. 15, 1959], Nos. 526/59, 16777/59 and 34994/59. Class 75 (1). [Also in Group XL (b)] A device for controlling a burner comprises an electromagnetic relay R adapted to close contacts 9, 10 to energize the heater HM of a thermal delay switch 13 controlling a motor M supplying fuel to the burner and to close contacts 4, 5 to energize the heater HL of a thermal delay lock-out switch 1; and a photo-resistive cell P is disposed in parallel with the relay R so that when the cell is illuminated by the burner flame the relay R is released to de-energize the heater HL of the lock-out switch. In operation when a thermostat TH closes, mains current flows through a current limiting resistance RD, a bridge rectifier BR, contacts 7, 8 of the relay, the heater HL of the lock-out switch and a dropping resistance VR. The relay R is connected across the D.C. terminals of the rectifier and is therefore energized. Contacts 6, 8 therefore close and simultaneously contacts 7, 8 open to substitute an equal resistance RR for the heater HL. The relay contacts 9, 10 energize the heater HM of the motor switch 13 and also the motor M and the heater HL of the lock-out switch 1. A resistance RM reduces the current through the motor and through the heater HL so that neither the motor nor the lock-out switch operate. Further relay contacts 11, 12 energize an ignition transformer T. After twelve seconds the thermal switch 13 operates to open contacts 13, 15 and to close contacts 13, 14. A current sufficient to cause operation is then supplied to the motor M and to the heater HL of the lock-out switch 1 and a current passes through the resistance RM to the heater HM of the thermal switch 13 and is sufficient to hold the thermal switch in operated condition. If the burner ignites the photo-cell P causes the relay R to release whereby the heater HL of the lock-out switch 1 is de-energized at the relay contacts 4, 5. This is the running condition of the burner. In this condition contacts 7, 8 are made so that the heater HL of the lock-out switch is included in the supply circuit of the rectifier but the current is not sufficient to operate the lock-out switch. If ignition fails the relay does not release and the lock-out switch operates after a predetermined time to de-energize the system and energize an alarm A. In a modification the heater for the thermal switch is in two parts and the first part is connected through the relay contacts 9, 10 to the contact 5. If the contacts 4, 5 fail to make the heater HL operates the lock-out switch 1 before the delay switch 13 operates.
Patent GB-1020576-A (GB)
Title: Improvements in driving mirrors for automobiles and like vehicles
Inventor: BROWNBRIDGE LESLIE
IPC: B60R1/06
Filed: 1962-01-05
Abstract: 1,020,576. Rear-view mirrors. L. BROWNBRIDGE. March 29, 1963 [Jan. 5, 1962], No. 559/62. Heading B7J. An exterior driving mirror 1, Fig. 1, is provided with deflector means 4, 5 for directing a current of air over the mirror surface to maintain the latter free from rain drops. The deflector comprises an angled plate having lugs 6 mounted by screws 8 on the mirror backing plate 3, the limb 4 of the plate being spaced above the top rim 2 of the mirror to form an air inlet slot and the deflector limb 5 being spaced from the mirror surface and projecting downwardly. An arcuate angled member may be used with a circular mirror. If desired the deflector means may be integral with the mirror frame 2, 3. Instead of a single slot and a single deflecting surface 5 there may be a plurality of slots and surfaces.
Patent GB-1160353-A (GB)
Title: Radiation Beam Apparatus.
IPC: B23K15/02
Filed: 1968-01-04
Abstract: 1,160,353. Electron beam machining apparatus. INTERNATIONAL BUSINESS MACHINES CORP. 4 Jan., 1968 [13 Jan., 1967], No. 626/68. Heading H1D. [Also in Division G3] A beam of electrons is repeatedly scanned across an area with overshoots maintained equal on each side of the area by automatic control signals which are also utilized when the beam is moved to a working area to produce a pattern. In Fig. 3, an electron beam 19 has deflecting coils 54, 55 under the control of a programmed generator 91 to produce printed or integrated circuits on a silicon-doped wafer 20 by a series of operations. To ensure a correct datum position for the beam before the start of each operation deflecting coils 54, 55 are energized from a sine wave generator 77 and a slow sweep generator 76 so as to scan rectangular areas, formed by removing a silicon dioxide outer coating of the wafer or depositing noble metal over the coating of the wafer, in such a manner that the scan overshoots opposite edges of the rectangles. Secondary emission from a scanned area is collected at 59 and variations due to the overshoots filtered out at 62 for application to amplifiers 64, 67 which are gated by generator 77 so that each amplifier produces an output corresponding to the extent of overshoot of one edge. The two outputs are compared at 68 so that any difference is eliminated to correct the mean position of the beam by controlling through a switch 70 the energization of one or other of the additional deflecting coils 56, 57 according to which axis is being corrected. Correction relative to both axes in succession may be effected by programmer 85 changing over switch 70 as well as a switch 84 to transpose the generators associated with deflecting coils 54, 55. During the subsequent working operation the correction signals remain effective, being stored by integration amplifiers 71, 72. Simultaneous correction of the beam relative to the two axes using two different scanning frequencies is referred to.
Patent GB-482159-A (GB)
Title: Improvements relating to the treatment of yarns or fabrics with artificial resin
IPC: D06M15/423
Filed: 1937-01-09
Abstract: Fabrics or yarns of cotton or silk, real or artificial, are treated with a formaldehydeurea or -thiourea precondensate containing a dibasic organic acid or its anhydride and an alkylolamine, the acid and alkylolamine being at least 10 per cent of the weight of the urea or thiourea, and condensation effected on the material.  The fabric or yarn is weighted and rendered crease-resisting.  Preferred reagents are phthalic acid and triethanolamine, and the impregnating liquid is preferably maintained at pH 6-7 whereby the stability of the solution is improved.  Other suitable dibasic acids are tartaric, oxalic, succinic, and adipic acids; other suitable alkylolamines are other ethanolamines, propanolamines and butanolamines.  In an example, urea and formaldehyde are dissolved in water and the mixture neutralized with triethanolamine, boiled and cooled, a solution of phthalic anhydride and triethanolamine in water is added; a viscose crape fabric is impregnated with the mixture, squeezed, dried and heated to 130 DEG  C. for 30 mins., soaped, rinsed, and dried.
Patent GB-1162061-A (GB)
Title: Improvements in or relating to Apparatus for Measuring Frequency
Inventor: WICKER REGINALD GORDON
IPC: H03L7/197
Filed: 1967-01-05
Abstract: 1,162,061. Digital frequency measurement. GENERAL ELECTRIC & ENGLISH ELECTRIC COMPANIES. 3 April, 1968 [5 Jan., 1967], No. 697/67. Heading G4H. Apparatus for indicating the frequency of a variable-frequency oscillator 4 comprises a frequency comparator 3 receiving pulses of reference frequency from source 1 via divider 2, a shaping circuit 8 and a variable-factor divider 9 through which the oscillator output is applied to the comparator, and a bidirectional counter 11 receiving the difference signal from the comparator and connected to adjust the division factor, the arrangement being such that the counter changes the division factor in a direction to bring the output from the divider into agreement with the reference frequency. The value in the counter then indicates the ratio between the frequency of oscillator 4 and the reference frequency. Controlling oscillator frequency.-In another mode of operation switch 10 is opened to disconnect the counter from the comparator, and switches 12 and 13 are closed to apply the comparator outputs to means for controlling the frequency of oscillator 4. A number is entered in the counter and the frequency difference signal then controls a stepping motor 6 to change the capacitor 7 until the frequency applied via divider 9 equals the frequency of the reference signal. The comparator also compares the phases of its inputs. The phase difference signal is applied to change a variable reactance 5 until the oscillator frequency divided by the number in counter 11 exactly equals the reference frequency from source 1. If desired the setting of the division factor may differ from the value in the counter by a predetermined number.
Patent GB-606982-A (GB)
Title: Improvements in and relating to fastenings
IPC: A44B19/30
Filed: 1946-01-08
Abstract: 606,982. Sliding-clasp fasteners. HEDGES, A. E. Jan. 8, 1946, Nos. 740/46 and 3791/47. [Class 44] In a sliding-clasp fastening with two sliders which meet intermediate the ends of the fastening, the sliders are adapted to be locked together by a locking mechanism embodied in one of them. A tongue or slide on one slider may be arranged to co-operate slide and sheath fashion with the other slider and to snap into fastening engagement. Preferably, the locking mechanism is key-operated. Fig. 3 shows the sliders 3, 7 of two fasteners 2, 6 applied to a suit-case, the complementary parts of the tapes being sewn to the body and lid. Each slider has a nib 11 to which are pivoted fastening members 13, 14, the former of box form with a spring tongue 16a projecting through a slot in one end of the box and having an enlarged head 18 and a keyhole 20. The member 14 is also of box shape, the end wall 23 having a slot to receive the tongue, and the remote end wall 25 having a slot for the head 18 of the tongue. The top of the box member 14 has a keyhole 27 under which the keyhole 20 in the tongue lies when the tongue is fully entered in member 14. A spring-pressed locking bolt 29 carries a stop 30 which in the locking position prevents the head of the tongue from being depressed to release it from the sheath 14. The bottom plate of one of the members, e.g. the member 13, may be extended to support the other member. A T-shaped label holder 34a may be secured at 35a to the lid so that the stem part thereof lies under the fastening members and is held down by. them when fastened, and may be so arranged that the label cannot be then removed. Other forms of fastening may be used, e.g. a hasp lock, or as shown in Fig. 5, the member 14 may have a keyholed hinge catch-plate 37 to which is connected a wire loop, the other end of which is received in a groove 39 in the remote wall of the member 13, the catch-plate 37 being adapted to be locked.
Patent GB-103661-A (GB)
Title: Improvements in Means for Mounting and Adjusting the Hair Spring and Balance Wheel of a Time Piece.
Inventor: ECAUBERT FREDERIC
IPC: G04B18/02
Filed: 1917-01-16
Abstract: 103,661. Ecaubert, F. Jan. 24, 1916, [Convention date]. Balance springs and balance regulators.-The bridge 10, Figs. 1, 2 and 3, in which the balancestaff 16 is pivoted carries a flat arm 13 frictiontight on a bevel-edged disk 14 concentric with the staff, this arm being furnished with two clamps 21, 22 and 23, 24 to grip the outer terminal portion of the hair-spring 19 in the space between it and the balance 17. The hair-spring bends back on itself, either outwards or inwards, before passing through the clamps. The outer jaws 21, 23 of the clamps are rigid, and the inner ones 22, 24 are springy and are applied by cam-screws 25, 26, while between the clamps is a radial slide 27 slotted on the hair-spring. This slide, shifted by a tool, is employed to deflect the portion of the hair-spring which is between the two clamps, when one is closed, thereby drawing in or thrusting out a fraction of it through the open one, after which the latter is closed and the other is opened and then, after return of the slide 17, is closed again. For a more delicate adjustment, differential expansion with change of temperature is resorted to. In the modification shown in Figs. 6 and 7, the gripping-pointer of the clamp and the gripped points of the hair-spring are in the plane of the arm, a tangential trough 79 being formed therein between the clamps, and the cam-screws are carried by branches on the further side of the clamps. With this arrangement, the hair-spring is deflected between the clamps directly by a removable tool.
Patent GB-411572-A (GB)
Title: Apparatus for cutting an extruded slab of clay into clods and for dealing with such clods in connection with the manufacture of bricks and such like
IPC: B28B11/16
Filed: 1933-01-10
Abstract: 411,572. Cutting clay into bricks. BAILEY, H. H., Royal Oak Hotel, Kelsall, near Chester, and JACKSON, J., Park Gate, Bowdon, Cheshire. Jan. 10, 1933, No. 809. [Class 87 (ii).] Apparatus for cutting a stream of clay into clod lengths comprises a rotary cutter operated by means controlled through trip mechanism acted upon by a cooperating mechanism set in motion by an advancing clod. The clay passes through a gear wheel a whereon is mounted diametrically a cutting wire or knife d such that two cutting operations are effected for each complete rotation of the wheel a. A gear e half the size of the wheel a is keyed on a shaft e<1> and meshes with external gear teeth on the wheel a. A belt f<2> drives a pulley ring f mounted on a boss g on the shaft e<1> and the ring f and boss g are put in driving connection by a rotatable spring-loaded key clutch g<1> on the boss g engaging curved recesses on the interior of the ring f. Normally a tail piece on the clutch is engaged by a slidable rod j so that a curved flat opposes the recesses and no engagement takes place. Levers h, i are adapted to be tiled by an advancing clod so as to pull back the rod j at intervals to enable the clutch to engage and the clod to be severed. The rod j and lever hare re-set by springs so that after one revolution of the gear e and one cutting movement of the wheel a the clutch is rendered inoperative until the next clod operates the trip mechanism. The severed clods are delivered by a faster-moving endless belt k to a cutting table where each clod is pushed through wires and cut into bricks. The belt k and a pusher may be driven from the shaft el, the belt k through bevel gear l, a free-wheel clutch l<1> and a flywheel l<2>. The belt k may have vertical guide rollers k<2>. Waste ends and chips may be conveyed back to the pug-mill. The wheel a may have broad teeth and be given a slight forward movement during cutting.
Patent GB-916288-A (GB)
Title: Improvements relating to chains having links made of synthetic material
IPC: F16G13/14
Filed: 1961-01-09
Abstract: 916,288. Chains and chain-couplings. KETTENWERKE SCHLIEPER G.m.b.H. Jan. 9, 1961 [Sept. 19, 1960], No. 861/61. Class 24. An oval link chain whose links are of resinous or like synthetic material reinforced by glass or other mineral fibres has each of its links stiffened by the provision of a lining of the synthetic material applied to the inside surface of the arcuate ends of the links. Such linings may be stuck on to a preformed conventional link or made integral with the link. In either case the lining 3 fills in what would normally be the curved interior of the link (as provided by a broken line in Fig. 1) up to.at least the region 5 where this curved boundary merges with the straight sides 1b of the link 1. Preferably, as shown, the lining 3 extends beyond the region 5 to merge in arcuate form with the straight sides 1b to form a curved engagement surface with the corresponding part 4 of the adjacent link 2. Where an end or other link of the chain is required to be engaged with a rope or the like, the lining extends substantially beyond the region 5, also projects laterally on both sides of the median plane of the link, and incorporates a rope-fitting surface such as an arcuate groove 8 (Fig. 3), which may either break into a hole 7 extending through the lining as shown or, as in Fig. 6 (not shown), be cut into the free end surface of the lining.
Patent GB-726428-A (GB)
Title: Improvements in the manufacture of organic acid esters of cellulose
IPC: C08B3/06
Filed: 1953-01-12
Abstract: An organic acid ester of cellulose in the form of fibrous flakes of high bulk density is obtained from a filtered, substantially salt-free solution of the ester in a lower aliphatic acid by precipitating the ester from the solution by means of an aqueous non-solvent for the ester containing a dissolved salt. The lower aliphatic acid may contain up to four carbon atoms per molecule, and the non-solvent may be water or a dilute aqueous solution of a lower aliphatic acid, e.g. acetic, propionic or butyric acid of 5-15 per cent concentration.  The salt may be sodium or magnesium sulphate, or calcium or magnesium acetate or magnesium nitrate, and it may be used in an amount of 5-25 per cent of the weight of the cellulose ester being precipitated. The salt may be distributed throughout the precipitating liquid, or it may all be contained in the first part of the precipitating liquid to come into contact with the solution.  The process may be used for the precipitation of a cellulose ester from an esterification solution.  Thus cellulose may be esterified in the presence of an inorganic catalyst and of a lower aliphatic acid to dissolve the cellulose ester formed, part or all of the catalyst may be neutralized to form a salt, the salt may be separated by crystallization and filtration, and the ester may be precipitated from the filtered solution by means of an aqueous precipitant containing a dissolved salt.  In an example, cellulose is esterified with acetic anhydride in the presence of sulphuric acid and acetic acid, and to the clear solution there is added magnesium acetate dissolved in water so as to convert all the remaining anhydride into acetic acid and to neutralize the sulphuric acid.  The solution is then heated at 85 DEG  C. until the ripened cellulose acetate has an acetyl value, calculated as acetic acid, of 54 per cent.  The solution is diluted with 10 per cent aqueous acetic acid until it contains 15 per cent cellulose acetate, 28 per cent water, and 57 per cent acetic acid.  The diluted solution is allowed to stand at 35 DEG C. until no more magnesium sulphate crystallizes out, it is then filtered, and 52.5 per cent (on the weight of the esterification solution) of a 10 per cent aqueous acetic acid, at 50 DEG  C., containing in solution 10 per cent (on the same basis) of magnesium sulphate is slowly added, after which a further 97.5 per cent of the 10 per cent aqueous acetic acid, without magnesium sulphate, is added rapidly.  The cellulose acetate is precipitated in the form of fibrous flakes having a bulk density of 0.31 grams per cubic centimetre (dry).  Specification 635,668 is referred to.
Patent GB-191000493-A (GB)
IPC: F24C3/04
Abstract: 493. Yates, H. J. Jan. 8. Gas fires.-The flame from each of a series of nozzles a is completely surrounded partly by the fire-back d, and partly by a detachable refractory " radiant " c, which is formed with apertures towards the front only. This radiant may be made in sections, and is secured in place by a bar f at the top. The back, which may be corrugated or flat, is formed with a ribbed front surface.
Patent HK-16895-A (HK)
Title: Fastening element
Inventor: FISCHER ARTUR PROF DR H C
IPC: F16B13/04
Filed: 1995-02-09
Abstract: 2.1. Fastening elements having an expanding cone and an expanding element which can be pushed thereon can be anchored in a positively locking manner in drilled holes having undercuts. In the case of drilled holes having a very small drilled hole depth, special requirements are placed on the fastening elements. 
<??>2.2. A fastening element (5) is proposed especially for the fastening of facade plates, on the expanding cone (6) of which fastening element (5) there rests a ring (7), which is bent in a roof shape, as the expanding element. For anchorage in the drilled hole, the ring (7) is pushed onto the expanding cone (6) and is largely pressed flat thereby, lateral edges of the ring (7) being braced on the wall of the drilled hole. 
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Patent HK-57294-A (HK)
Title: Improved stencil or mask for applying solder to circuit boards and support frame
Inventor: WILLIAMS DAVID GODFREY
IPC: B05C17/06
Filed: 1994-06-04
Abstract: PCT No. PCT/GB93/01021 Sec. 371 Date Jan. 27, 1994 Sec. 102(e) Date Jan. 27, 1994 PCT Filed May 19, 1993 PCT Pub. No. WO93/25061 PCT Pub. Date Dec. 9, 1993A stencil of sheet metal for enabling solder paste to be applied to circuit boards includes a main body portion and opposite side regions which are apertured so as to be more flexible than the main body portion, and so as to enable these opposite side regions to be bent without kinking or other deformation during tensioning. The invention further includes an apparatus for enabling solder paste to be applied to a circuit board by a stenciling process, the apparatus including a stencil as described together with a support therefor, the stencil being attached to the support and being detachable therefrom. The side regions of the stencil are flexed for attachment to the support, so that the interconnection between the support and the stencil does not project beneath a lowermost planar surface of the stencil.
Patent HK-73986-A (HK)
Title: Improvements in or relating to pulse actuated stepping motor driven electronic timepieces
Inventor: ITO JIRO
IPC: G04C3/14
Filed: 1986-10-02
Abstract: A stepper rotor is driven with a narrow pulse width input which matches the load conditions on the motor. The subsequent position of the rotor is detected as being rotated or non-rotated by application of a detection pulse to the rotor. An additional driving pulse of increased width is applied should the rotor be found in a non-rotated state. A stabilizing pulse prevents intermediate rotor positioning. Position of the stepper motor is detected by passing a current through the rotor cell. The rate of increase in detection current is different when the rotor has rotated and when the rotor does not rotate because coil inductance and magnetic flux directions passing through the saturable portion of the stator are different depending upon the position of the rotor. The width of the driving pulse for normal operation is selected from a range of pulse widths so as to match the load on the motor.
Patent HK-79885-A (HK)
Title: Controlled release compositions (ii)
Inventor: EMBREY MOSTYN POWELL
IPC: C08G18/48
Filed: 1985-10-17
Abstract: A controlled release composition comprising a prostaglandin and a polymeric carrier therefor comprising residues having a ratio of number average molecular weight to functionality greater than 1,000 which comprise polyethylene oxide and are cross-linked through urethane groups.
Patent HU-T63266-A (HU)
Title: Method for copying magnetic tapes
Inventor: EIGELDINGER NORBERT
IPC: G11B5/86
Filed: 1990-08-18
Abstract: In conventional copying processes, signals recorded in addition to the actual useful information, e.g. control signals for the synchronisation of recording-head switchover impulses, are not copied. Additional information can, however, be encoded in a variation of these signals, and this information is thus also not copied. In the invention, digital information recorded on the control track and detected by a reproduction device is transmitted by a transmission stage to a recording device where it is recorded again in digitally encoded form in an appropriate time gate on the control track. The process and device are of use in the copying of magnetic tapes containing address or index marks.