baber/WOPTO huggingface dataset:
Patent GB-418042-A (GB)
Title: Improvements relating to terminals for electric accumulators
IPC: H01R11/28
Filed: 1933-08-25
Abstract: 418,042. Two - part couplings. CHLORIDE ELECTRICAL STORAGE CO., Ltd., and DEAN, H., Exide Works, Clifton Junction, near Manchester. Aug. 25, 1933, No. 23666. [Class 38 (i).] An accumulator terminal comprises a tapered post a containing a nut b and over which is forced a fitting f, to which the cable is secured, by a bolt e having a collar d which withdraws the fitting when the bolt is unscrewed. In the modification shown in Fig. 4, the fitting f is split and provided with a tightening bolt h and is engaged by the bolt e through a slotted extension. The bolt can thus be removed to enable the fitting to be used on a solid post.
Patent GB-1004326-A (GB)
Title: Improvements in or relating to torque motors
Inventor: HOWARD JOHN EDWARD
IPC: H02P6/14
Filed: 1960-07-06
Abstract: 1,004,326. Electric control systems. DE HAVILLAND AIRCRAFT CO. Ltd, and ELLIOTT BROS. (LONDON). Oct. 6, 1961 [July 6, 1960], No. 23691/60. Heading G1N. Apparatus for driving a torque motor comprises a transitor circuit arranged to produce current pulses of length dependent on the magnitude of an input signal. As shown, a saw-tooth input to the emitter of a transistor 1 is reproduced at the collector and supplied therefrom to the base of a second transistor 8 whose collector is connected to the base of a third transistor 9, the emitters of transistors 8, 9 being connected to a source of reference voltage of the same order as the collector voltage of transistor 1 due to the emitter bias thereof. Thus the saw-tooth signal has the effect of causing transistor 8 to be alternately conducting and non-conducting for equal periods of time; the condition of transistor 9 is always opposite that of transistor 8. A fourth transistor 12 assumes the same condition as transistor 9 and a fifth transistor 13 assumes the opposite condition. A torque motor has windings 15, 16, wound in opposition, in the collector circuits of transistors 12, 13 respectively; pulses flowing alternately through these windings have a mark/ space ratio of unity and the motor output is zero. The appearance of a D.C. input signal at 5 biases the saw-tooth wave so that these mark/space ratios are differentially varied and the motor produces an output representative of the magnitude of the D.C. input. Alternatively the transistors 12, 13 may be switched by a magnetic amplifier fed with pulses whose length is modulated by the D.C. input.
Patent GB-1347744-A (GB)
Title: Governors for fuel injection systems
IPC: F02D1/12
Filed: 1971-04-19
Abstract: 1347744 Fluid-pressure servomotor systems ROBERT BOSCH GmbH 19 April 1971 [10 March 1970] 23704/71 Heading G3P  A control device 5, Fig. 1, for varying a fluid pressure in accordance with the speed of a fuel injection engine is interposed between a continuously driven pump 2 and a member 11 for adjusting the quantity of fuel injected, the pressure applied to the member 11 also being adjustable by a throttle 24 in a fluid return line 22. The device 20 consists of a piston 21 reciprocably mounted in a shaft 19 rotated by the engine and arranged to deliver a fixed quantity of fuel from the pump 2 into a space 17 at each  rotation. An electric motor 3 drives the pump 2 which is provided with a pressure relief valve 7. A second radial bore having a constricted portion and arranged to connect the chamber 17 intermittently with the return line 22 may be used in place of the throttle 24. Alternatively, a tapered pin carried by the member 11 may be arranged to throttle the flow into the return line to an increasing extent as the pressure on the member 11 falls. In Fig. 4, the control device is replaced by a valve 32 opened intermittently by a cam 34 on an engine driven shaft 31 having an arcuate groove to deliver fluid intermittently to the valve from the continuously driven pump 2. The spring-loading on the member 11 may provide either a quadratic or linear relationship between displacement and engine speed.
Patent GB-589358-A (GB)
Title: Improvements in or relating to electrical signalling systems
IPC: G05D3/14
Filed: 1944-11-30
Abstract: 589,358. Electric follow-up systems. TENCH, F. (Automatic Electric Laboratories, Inc.). Nov. 30, 1944, No. 23892, [Class 40 (i)] An impulse transmitter for moving a member at a distant point in correspondence with the movement of a master member comprises a pair of crossed levers 25, 27, their outer ends connected together by a spring 30, which embrace two pins 21, 22, one mounted on a gear-wheel 20, the other carried by the control arm 32, so that the gear-wheel 20 follows the movement of the arm 32 in either direction at a speed determined by a governor 11. The gear-wheel 20 also drives a cam 34 which at contacts 33-37 sends impulses in succession to coils 51-53 acting on angularly displaced armatures 57-59 so as to rotate a shaft 49. The latter drives a cam 63 through a differential gear 60 so as to energize one of the field windings 70, 71 of a motor 67 which drives the output shaft 68 and also the other member of the differential gear until the cam 63 is restored to its original position. In a modification, the. impulses are converted to high-frequency impulses for radio 'transmission to the receiving station, where they are reconverted into direct current impulses.
Patent GB-518080-A (GB)
Title: Improvements relating to fire bars
IPC: F23H17/12
Filed: 1938-08-13
Abstract: 518,080. Fire bars. FRUIN, H. A. H., and HOLLAND, L. G. Aug. 13, 1938, No. 23930. [Class 51 (i)] A firebar comprises an upper flange b of rectangular form with its side edges provided with notches c which are tapered. The notches are inclined to the axis of the bar and the notches on one side are arranged in line with those on the other side of the bar.
Patent GB-213842-A (GB)
Title: Improvements in and relating to bins and other receptacles
IPC: B65F1/16
Filed: 1923-09-25
Abstract: 213,842. Cullinane, W. Sept. 25, 1923. Lids.-To prevent loss of or damage to the lids of bins or similar receptacles and to enable them to be retained, without holding, in the open position, the lids are provided with two rods or stays C passing through holes in the rear wall of the bin over rollers or other antifriction means E.
Patent GB-637327-A (GB)
Title: Teaching devices
IPC: G09B7/06
Filed: 1947-08-29
Abstract: 637,327. Educational appliances. HAWKINS, B. J. Aug. 29, 1947, No. 23981. Convention date, Aug. 31, 1946. [Class 146 (ii)] A teaching device in which the correct solution of a problem results in the completion of an electrical circuit and energizing of an indicating means, comprises a housing having a plurality of receptacles to receive a set of panels carrying representations to be arranged in predetermined order and which complete an electric circuit when correctly arranged in the receptacles. Referring to Figs. 1 and 2, a box-like housing 10 has receptacles 11, 12 arranged in rows, the receptacles 12 being spaced from the receptacles 11. Panels 14 of dielectric material carry pictorial representations 15 differing for each row and for any one row, one representation 15 S differs in some particular from the rest. Each panel 14 has a bridge 18 of electrically conductive material positioned similarly for similar representations so that contacts 17 of the circuit 21 are .connected when similar panels 14 are placed in any receptacle 11 of one row and so that the circuit 21. is then 'completed when the dissimilar panels 14 are placed in the corresponding receptacles 12 and a lamp 13 is energized from a battery 16. In a modification showing a single row of receptacles, each panel is different and the contact positions are different, the pictorial representations showing a story sequence such as the hatching of a chicken from an egg. This modification may also be used for arranging numbers in ascending or descending order or arranging letters to spell words. In modifications in which graphic means associated with the housing present a problem to be answered, Fig. 7 represents a means of teaching the time. A housing, not shown, has hour and minute hands of electrical conducting material pivotally mounted in the centre of the clock face and insulated from each other. The hour hand acts as a contact between an annular member 37 and twelve contact points 38 each of which is connected to a corresponding contact point 43 in a receptacle 32 in the housing in which can be placed panels bearing a number from 1 to 12 with a connecting bridge 41 to connect a contact point 42 to the corresponding point 43. Similarly the minute hand connects two contact points 39 on the clock face which are connected to points 43 in receptacles 33 and 34 for panels with bridges 41 bearing numbers representing minutes. As shown. receptacle 34 has two contact points only for intervals for five minutes to be represented. The circuit is then completed and a lamp 45 energized when the numbers in the receptacles represent the time 'shown on the clock face.
Patent GB-945568-A (GB)
Title: Vehicle handbrake
Inventor: EVERNDEN HAROLD IVAN FREDERICK
IPC: B60T7/10
Filed: 1961-07-04
Abstract: 945,568. Hand brakes. ROLLS-ROYCE Ltd. July 3, 1962 [July 4, 1961], No. 24057/61. Heading F2E. In a hand brake mechanism for vehicles comprising a rod 1 which is moved in the direction of its axis with respect to a guide 4 to apply the brakes initially, a ratchet 2 and pawl 3 being provided to hold the rod in the applied direction, an auxiliary hand-operated lever 6 is arranged to act on the rod 1 through ratchet 2 and a pawl 10 to move the rod still further in the brakeapplying direction, the lever 6 giving a substantial mechanical advantage. As shown, the lever 6 is pivoted to the guide 4 through a link 7 and to a sleeve 9 which carries the pawl 10. The brake is released by turning the handle 5 about the axis of the rod 1 to simultaneously disengage the pawls 3 and 10, thus allowing the rod 1 to move under the influence of the brake mechanism return springs.
Patent GB-363381-A (GB)
Title: Improvements in or relating to driving means for sound or picture record films
IPC: G03B31/02
Filed: 1930-08-12
Abstract: 363,381. Kinematograph apparatus. JACKSON, L. MELLERSH-, 28, Southampton Buildings, London.-(Assignees of Siemens & Halske Akt.-Ges. ; Siemensstadt, Berlin.) Aug. 12; 1930, No. 24164. [Class 97 (i).] A film-driving means, particularly for soundrecord films, is equipped with a flywheel to ensure uniform speed and this flywheel is accelerated to its proper speed before being coupled with the film-driving mechanism and before the latter is started. A film x is fed by a main winder b over a drum a past the illuminating point z. Between the take-off spool h and a front-winder c1 and between a back-winder c2 and the take-off spool k, respectively, are inserted double tension rollers e, d. These rollers in each pair are connected by a plate f which is spring-pressed about the axis g to keep the film band tight. The front and back winders cl, c2 are elastically coupled to their shafts v1, v2 respectively by springs u. The shaft s of the main winder b is geared to a shaft t which is driven by the main driving motor o and drives through a bevel gear w the shafts v1, v2 of the front and back winders. The flywheel q is coupled with the shaft s through a magnetic coupling r1 after the flywheel has previously been accelerated to its proper speed by an auxiliary motor p. The coupling between the flywheel q and the auxiliary motor p is effected through a coupling disc a which is engaged only when the coupling r is not energized. The switching-in device for the motor o is arranged so that starting takes place simultaneously with the energizing of the coupling r. Alternatively the motor o may be arranged to accelerate the flywheel.
Patent GB-296027-A (GB)
Title: Improvements in or relating to grinding, cutting and polishing tools
IPC: B24D5/06
Filed: 1928-08-22
Abstract: 296,027. Vereinigte Stahlwerke Akt.- Ges., (Assignees of Kosfeld, W.). Aug. 23, 1927, [Convention date]. Milling-cutters.-A grinding, cutting or polishing tool is in the form of a piece cut obliquely from a cylinder and adapted to be rotated about the axis, the peripheral surface acting as the grinding &c. surface; several such tools may be mounted on a common shaft. In a modified construction, Figs. 3 and 4; the oblique grinding- disc consists of plates b, b<1> between which are secured segments a, held in position by bolts c and ribs d, and adjustable radially by screws e. The plates b, b<1> may be made of elastic material in order to provide a good frictional contact. Reference has been directed by the Comptroller to Specifications 4320/82, [Class 60, Grinding or abrading &c.]; 14358/93; 18351/07; 152,999 and 269,390, [both in Class 60, Grinding or abrading &c.].
Patent GB-532235-A (GB)
Title: Signalling device for hunting-dogs
IPC: A01M31/00
Filed: 1939-08-23
Abstract: 532,235. Signalling by visible signals. MONTHAYE, G. P. G. C. Aug. 23, 1939, Nos. 24276 and 24277. Convention dates, Aug. 25, 1938, and Aug. 21, 1939. [Class 118 (ii)] A device for indicating the position of a hunting-dog comprises a belt 1 which surrounds the chest of the dog and carries a pole 19 provided a device 20 for enabling the movements of the dog in covered ground to be followed.
Patent GB-273536-A (GB)
Title: Improvements in rotary pumps suitable for feeding viscose
IPC: F04C2/32
Filed: 1926-10-01
Abstract: 273,536. Ludwig, A. V., and Ludwig, G. E., (trading as Ludwig, Geb.). July 28, 1926, [Convention date]. Movable-abutment type; compensating for irregularity of flow.-In a rotary pump which comprises two piston discs c mounted on eccentrics set at 180‹ on a common shaft and abutments f, attached to the pistons, which slide in rocking members g, the faces of the abutments are formed with recesses l, l<1> which communicate directly with the orificeis i<1>, k<1> of the inlet and delivery passages. The pump is suitable for feeding viscose in the manufacture of artificial filaments.
Patent GB-1391653-A (GB)
Title: Trip-wire switch
IPC: G01J1/04
Filed: 1972-05-24
Abstract: 1391653 Measuring tension CGE COMPAGNIA GENERALE DI ELETTRICITA 24 May 1972 [25 May 1971] 24361/72 Heading G1W [Also in Division H1] A device for signalling when the tension in a wire varies from a desired value comprises a shaft 3 constrained against rotation by spring 69 a lever 2 secured to the shaft 3 and having holes 2', 2", 2"' to one of which the end of the wire is secured, a cam 14 secured to the shaft 3, a rod 34 slidable axially between two end positions with a snap action and having one end provided with means 23, 26 to follow the surface of cam 14, and switch contacts 42-49 actuated according to the position of rod 34. If the tension in the wire increases or decreases, shaft 3 rotates one way or the other from the position shown in Fig.1, and the cam 14 depresses a member 26 on which a cam following wheel 23 is mounted. Depression of member 26 moves rod 34 downwardly, and rod 34 snaps to its lower end position, the snap action being achieved by virtue of the leaf springs 57, 57'. The rod 34 remains in its lower end position until moved upwardly by manual operation of a spring loaded push button 67. The rod 34 carries two cross members 50, 51 each carrying two contacts 46, 47 and 48, 49 respectively. A spring 54 is interposed between the two members. When the rod 34 is in its upper end position, contacts 48, 49 about fixed contacts 44, 45, the head 36 of the rod 34 abutting lower member 50. When the rod 34 is in its lower end position contacts 46, 47 abut fixed contacts 42, 43, the collar 56 abutting upper member 51. In the lower end position a signal lamp mounted on bracket 79, or an audible warning, is actuated via contacts 42, 43, 46, 47 and a transformer 77. The housing comprises a bottom part 1, a lid 2, and a panel 71 covering an access window in the lid. The shaft 3, lever 2, spring 69 and cam 14 are carried by the lid 1", and the member 26, rod 34 and the switch contacts are carried by the bottom part 1. Cables may enter the housing through plugs 81, 82.
Patent GB-732989-A (GB)
Title: Process for the manufacture of melamine
Inventor: FERREAU EMIL SCHWAMBERGER BERT
Filed: 1952-09-30
Abstract: Melamine is manufactured by slowly introducing a mixture or solution of dicyandiamide with or in liquid ammonia (preferably preheated to a temperature not above 150 DEG  C.) into a reaction vessel which is already at, and is maintained at, 150-220 DEG  C., and avoiding pressures above 60 atmospheres by continuous expansion of the ammonia.  The reaction vessel is advantageously fitted with an agitator, and the melamine may be removed as a powder after the completion of the reaction, or continuously or at short intervals by means of pressure-tight devices such as worm-wheel conveyers, sliders or pressure gates.  In examples, the process is carried out at (1) 170-175 DEG  C. and 45-50 atmospheres; (2) 170-180 DEG  C. and 35-40 atmospheres; (3) 180 DEG  C. rising to 190-195 DEG  C., and 50 atmospheres, with heating of the reactants to 80 DEG  C. before introduction into the autoclave; (4) 220 DEG  C. and 50 atmospheres, with preheating to 140-150 DEG  C.
Patent GB-296670-A (GB)
Title: An improved method of operating centrifugal separators
IPC: B04B15/06
Filed: 1928-08-27
Abstract: 296,670. Aktiebolaget Separator. Sept. 3, 1927, [Convention date]. Density sepatators; cleaning drums.-Centrifugal separators used for purifying liquids such as oil, are cleaned by a wash liquid which is periodically fed into the bowl and made to flow through the part where the solid impurities are deposited. The speed of the bowl may be reduced so that: it can be increased simultaneously with the flow of the washing water, and the water may be directed through nozzles to impinge tangentially on the bowl wall. Brine may be used as washing liquid; it may be introduced through the pipe A and pass between the wings B. It then passes through the openings or nozzles C which may be directed backwards so that the liquid strikes the bowl wall almost tangentially.
Patent GB-586500-A (GB)
Title: Improvements relating to electro-dynamic sound reproducers of the moving coil type
IPC: H04R9/04
Filed: 1944-12-08
Abstract: 586,500. Moving-coil loud-speakers. WILLSON, H. C. Dec. 8, 1944, Nos. 24664/44 and 6724/45. [Class 40 (iv)] In a magnet assembly for a moving-coil loud-speaker, the interior surface of a magnet pot 6 is accurately machined to receive a centring disc 12, previously fitted to the centre pole 10, and an annular polepiece 9. The disc 12, which may be dish-shaped, and the polepiece 9 are provided with spaced notches 13, 14 to permit the passage of air and a filtering ring 15 is held between them as shown. The chassis assembly consisting of chassis 1, diaphragm 2, centring spider 16, and speech coil 31, may be formed as a separate unit attached to the flange 8 of the magnet pot, said flange being provided with a spigot 25, accurately fitting the central hole in the back plate 5 of the chassis. The annular polepiece 9 is fitted in the pot as a light driving or press fit, or as a sliding fit in which case it is held by a spring ring. A method of assembly of the chassis unit with the use of jigs is described. Specifications 584,354 and 586,502 are referred to.
Patent GB-1291220-A (GB)
Title: Method and means for applying liquid to a continuous moving web
Inventor: DAHLGREN HAROLD PHILLIP
IPC: B05D1/42
Filed: 1969-09-27
Abstract: 1291220 Coating webs H P DAHLGREN 27 Sept 1969 24701/72 Divided out of 1287285 Heading D1L Liquid is applied to a web 11 by means of a roller 3 having a smooth, liquid receptive, hydrophilic surface rotating in a bath 2: a doctor blade is adjustably mounted to cooperate with the roller and the speed of the roller is adjustable relative to the web to produce slipping therebetween. The roller may be of steel plated with chrome or nickel, polished and may have a coating of gum arabic to prevent oxidation.
Patent GB-907335-A (GB)
Title: Well packer assembly
IPC: E21B33/12
Filed: 1960-07-15
Abstract: 907,335. Magnetic switches. CAMCO Inc. July 15, 1960 [July 30, 1959], No. 24709/60. Class 38 [5). [Also in Group XXI] Series connected D'Arsonval type switch devices 31, 32 are polarized to effect operation by the location of a movable member 40 which includes permanent magnets 44 and has its magnetic circuits arranged to correspond to the spacing of the ends of magnetic pole members 37 which extend to opposite sides of the switch devices 31, 32. The member 40 has a body 39 of magnetic material, magnetic spacers 43 and non-magnetic spacers 42 having rings of cylindrical permanent magnets 44 arranged so that magnetic circuits can be completed by magnetically coupled members adjacent the ring of permanent magnets and a member 43. Such circuits are completed by members 37 and magnetic inserts 38 in the wall of the tube through which the member 40 is passed. The members 42, 43 may be arranged in a different sequence on the body 39 (Fig. 10, not shown) and will effect operation of switch devices having a corresponding sequence of pole member 37 and will not operate the arrangement shown in Fig. 2.
Patent GB-427698-A (GB)
Title: Improvements in ball bearing spinning rings
IPC: D01H7/56
Filed: 1934-08-28
Abstract: 427,698. Spinning-rings. KUWADA, G., Maetani-Mura, Kawabegun, Hyogo, Japan. Aug. 28, 1934, No. 24769. [Class 120 (ii)] A spinning - ring carrying a freely mounted traveller is rotatably mounted in its holder by a series of balls providing a rolling friction bearing, the ball races being so arranged that downward and lateral forces are carried by the balls, but slight lifting of the ring is permitted. The ring 1 is mounted in its holder 3 by two rows of ball bearings 4, 5 which take lateral and downward thrust whilst permitting the ring to rise slightly ; the balls 4 are introduced through an aperture 6. In a modified form, a single row of balls is employed.
Patent GB-379857-A (GB)
Title: Improvements in or relating to foot supports for boots or shoes
IPC: A43B7/22
Filed: 1931-09-03
Abstract: 379,857. Foot - arch supports. STIEFEL, A., (trading as STANDARD FOOT CORRECTOR), 90, Wolfert van Borsselenweg, Buitenveldert, Amsterdam. Sept. 3, 1931, No. 24792. Convention date, Sept. 3, 1930. [Class 81 (ii).] A foot-arch supporting plate 2, curved longitudinally and transversely and having an upturned lateral extension 1, is so formed that all transverse sections including the extension. 1 exhibit an upward inclination from the foot 3 of the extension to the outer edge 2. The inclination is most marked at the heel end 4. A central section is shown in Fig. 5.
Patent GB-327659-A (GB)
Title: Improved means for carrying spare wheels or rims on motor cars and the like
IPC: B62D43/04
Filed: 1929-08-14
Abstract: 327,659. Petersen, O. C. Aug. 14, 1929. Mounting spare wheels on vehicles.-Means for carrying spare wheels or rims on motor-cars &c. comprises a framework 1 fixed to the chassis, and a winch-like or winding-apparatus 9 adapted to be connected to the wheel or rim so that it can be pulled up to the framework and there held with the tyre 5 out of engagement with any part of the car. As shown, the rim 5<a> of the wheel engages a depending part 3 of the framework. The cable 10 of the winding-apparatus is detachably connected by a hook 12 to a plate 13 adapted to support the wheel at the hub. The winding- appa.ratus is retained in position by a spring- pressed pawl 16 engaging a ratchet-wheel 14 on the winding-shaft.