baber/WOPTO huggingface dataset:
Patent GB-701969-A (GB)
Title: Improvements in or relating to code signalling transmitting apparatus
IPC: H04L17/12
Filed: 1950-08-04
Abstract: 701,969. Telegraph transmitters. HYDE, G.A. M. Aug. 2, 1951 [Aug. 4, 1950], No. 19481/50 Class 40(3) In a telegraph transmitter using a tape perforated according to an equal-unit code with feelers sensing the perforations to determine the signals to be transmitted and driving means to control the stepping of the tape and the movement of the feelers into and out of engagement with the perforations, the feelers are moved into a position to sense a code combination before the completion of the cycle of operation of the driving means. On the operation of the driving magnet 1, a three-armed lever 14 carried by the armature 6 engages, by means of a roller 15, a recess in a pivoted plate member 19 carrying an arm 22 which engages projections 26 to depress the feelers 28 which have encountered perforations in the tape so that contact-operating members 30 allow the movable contact blades 35 to engage the upper contacts 37. An extension 41 of the armature 6 engages an operating lug 48 on an arm 46 connected to a pivoted plate 44 carrying a spring-biased pawi 43 engaging a ratchet 42 driving the sprocket wheel 61 having pins 62 engaging the driving holes of the tape, the pawl 43 being operated after the feelers 28 have been withdrawn from the tape. During the final part of the movement of the armature, a depending arm of the lever 14 engages an adjustable stop 50 so that the rollers 15 is rocked out of the cavity in the plate 19 and the arm 22 is rotated anticlockwise by a spring 24 so that the feeler pins 28 are freed to sense the perforations of the tape, those detecting holes allowing the associated contact-operating members 30 to move the blade 35 to engage the lower contacts 36. The members 30 are thin straight blades with spacing equal to that of the perforations in the tape. The contact springs 35, 36, 37 are of hardened beryllium copper strip, plated with rhodium, at the contact areas. In the case of tape in which the driving holes are in advance of or behind the code perforations, the bracket 64 carrying the arm 55 provided with the positioning roller 57 engaging below the ratchet wheel 42 is moved forwards or backwards, and appropriate adjustments of the components of the driving mechanism are effected by means of the screws 11, 50, 53 and positioning nut 49 associated with the lug 48.
Patent GB-886287-A (GB)
Title: Voltage or current-sensitive controlling device
Inventor: BENNETT GORDON CHARLES
IPC: G01R17/10
Filed: 1957-06-20
Abstract: 886,287. Current and voltage measuring. STANDARD TELEPHONES & CABLES Ltd. June 13, 1958 [June 20, 1957], No. 19507/57. Class 37. In a current or voltage - sensitive bridge network, a non-linear resistor 7 is connected in series with a second resistor 10 to one input terminal C, and constitutes one arm, of the bridge; and an amplifier 12, 13, having a differential output connected across the second resistor, has two inputs with respect to a common terminal which are connected to the respective output terminals A, B of the bridge, the common terminal being connected to the other input terminal 20 of the bridge. The base electrodes of transistors 12, 13 are connected to bridge vertices A, B ; the emitter electrodes are commonly connected to the positive side of the bridge input over resistor 11; and the collector electrodes are connected through coils 14, 15 across resistor 10 which is in series with a thermistor 7. The arm AC contains a temperature compensating network constituted by a thermistor 22 shunted by resistor 23. The bridge is initially balanced by adjusting rheostats 6 and 24. Any subsequent fluctuation of the D.C. supply voltage S will produce unequal currents in coils 14, 15 due to unequal bias voltages at A and B ; the coils may be part of a controlling device to maintain S at a given value ; alternatively they may constitute the differential coils of an ammeter. In another embodiment, Fig. 3 (not shown), the transistor collector currents may be amplified by a further pair of transistors; the coils 14, 15 being connected to the collectors of these latter transistors. A capacitor may be shunted across resistor 10 to improve the response of the circuit.
Patent GB-1392581-A (GB)
Title: Friction welding machine
IPC: B23K20/12
Filed: 1973-04-25
Abstract: 1392581 Friction welding, broaching; chucks; rotary cutter heads CHIYODA CHEMICAL ENG & CONSTRUCTION CO Ltd 25 April 1973 19532/73 Headings B3R B3B B3L and B3T A friction welding machine for welding together two elongate tubes 49, 54 and removing internal and external weld flash comprises a bed 31, a stationary head 32 for clamping the tube 49, a movable head 33 with drive motor 53 and chuck 90 for supporting and rotating the tube 54, a work rest 34 and tailstock 35 for further supporting the tube 54 in coaxial relationship with the tube 49, a support 36 at the end of the bed 31 for supporting an inner-flash removing tool, and a tool for removing external flash. The movable head 33 comprises a pair of hydraulically actuated bevel-closing collet chucks 90, Fig. 10, for gripping and driving the tube 54 during the friction welding operation. Each chuck comprises a double-bevelled collet 191 and a pusher member 114 adapted to be drawn against the collet by the action of hydraulic pressure on piston member 99; ball races 112 provide for relative rotation between the piston and the rotary parts of the chuck. A pair of tension bars 63, 64 extend from hydraulic cylinders 65, 66 attached to the stationary head 32 and serve for drawing the movable head 33, work rest 34 and tailstock 35 towards the stationary head during the heating and upsetting stages of the friction welding operation. Work rest 34 and tailstock 35 are releasably engageable with the tension bars 63, 64 and after the friction welding operation is complete are released therefrom; at this stage also the chucks 90 of the movable head 33 are released from the tube 54 (now welded to the tube 49), drive to the chucks resumed and the movable head again drawn towards the stationary head to enable a cutting tool 122, Fig. 10, mounted externally on the head 33 and rotatable with its chuck to machine off the external weld flash 125. The internal weld flash is removed by means of a cutter head 83, Fig. 13, mounted on the end of a rod 82 which extends inside the tubes 54, 49 from the support 36; the cutter head 83 is adapted to be drawn past the welded joint thereby removing the internal weld flash by actuation of an hydraulic cylinder unit 81 mounted on the support 36. Support 36 is releasably clamped to the tension bars 63, 64 during this operation to prevent movement of the support 36 relative to the bed 31. In an alternative arrangement for removing external weld flash two semi annular tools 135 (136) having slightly helical cutting edges 140, as shown in Fig. 21, are attached either to the face of the movable head 33 or to the face of the stationary head 32 and external weld flash is removed by relative longitudinal movement between the welded tubes and the tools. The internal flash removal tool 85, Fig. 13, preferably has two symmetrical helically arranged cutting edges 87 providing balanced cutting forces but one continuous edge or more than two such edges may be used.
Patent GB-220155-A (GB)
Title: Improvements in variable speed friction gearing
IPC: F16H15/46
Filed: 1923-07-31
Abstract: 220,155. Buck, W. W. July 31, 1923. Variable-speed friction gearing comprises inclined driving and driven shafts a, b, a disc wheel a<1> with bevel gear surfaces c, d, e splined on the shaft a, cone shaped wheels c<1>, d<1>, e<1> splined on the shaft b, and a slotted spring-pressed pivoted bar g for producing frictional engagement in the pair of gears which are engaged for each speed. In each of the slots i, i<1> in the bar g is a slider j, j<1> jointed to one of the levers l, l<1> which advance the groups of gears into frictional engagement. Thus the thrust of a spring s is distributed upon both elements of an engaged pair. In changing speed, a pedal r is depressed, which turns the lever g to inoperative position, compressing the spring s and withdrawing both groups of gears. A lever q<2> is then operated to shift the sliders j, i<1> and bring the gear groups to new relative positions. The new speed engages on release of the pedal. A separate cone gear f is provided for reversed driving operated by a separate linkage y, y<1>À
Patent GB-369828-A (GB)
Title: Process for the preparation of a special product intended to delete or obliterate inscriptions or drawings in black or red ink from tracing cloth, without leaving any trace thereon
IPC: D06L1/01
Filed: 1931-07-07
Abstract: 369,828. Ink-erasers. GILABERT, J. M., 1, Plaza de Fontes, Murcia, Spain. July 7, 1931, No. 19564. [Class 146 (iii).] A paste for removing ink marks from tracing cloth without leaving any trace, such as roughening of the surface, consists of pumice powder, virgin wax, essence of turpentine, and petroleum jelly.
Patent GB-236064-A (GB)
Title: Improvements in and relating to the control of electric motors
IPC: B60L15/20
Filed: 1924-08-18
Abstract: 236,064. English Electric Co., Ltd., and Zweigbergk, T. Aug. 18, 1924. Series parallel systems; electric breaking.-In order to prevent undesired electric breaking action when motors grouped in paral el are disconnected from the supply, switches 3, 4 Fig. 1 in the parallel branches are caused to open, so as to interrupt all closed circuits between the motors, the interruptions preferably taking place between the armatures 1, 2 and their respective fieldwindings 31, 32. The switches may be thrown out by a spring 30, Fig. 2 consequent upon the de-energization of a hold-on coil 26, and may be reclosed bv a lost-motion link connection 27 to the line switch 7 which is itself closed by a cam 13 and toggle 15.
Patent GB-613760-A (GB)
Title: Improvements in or relating to folding or collapsible tables and the like
Filed: 1946-07-01
Abstract: 613,760. Folding furniture underframes. MORRIS, C. V. July 1, 1946. No. 19644. [Class 52 (iii)] The folding legs of a table are each hinged on an axis F carried by the skirting B and are held in extended position by means of wire, &c., fastenings G of rectangular form. The fastenings G are pivoted to the underside of the table top A at H and their free ends are adapted to snap into notches G formed in the legs at appropriate position. The legs which fold diametrically are each formed of two tapering strips C connected together in angular form by a block D at the bottom and towards the top by a stirrup E, the U-shaped ends of which pass through apertures in the strips C. These stirrups are arranged to enter additional notches K to lock the wire, &c. fastenings when holding the legs in operative position.
Patent GB-1201412-A (GB)
Title: Musical instrument keyboards
IPC: G10H1/055
Filed: 1968-04-25
Abstract: 1,201,412. Keyboards for electronic musical instruments. NIPPON GAKKI SIEZO K.K. 25 April, 1968 [26 April, 1967; 27 Dec., 1967 (2)], No. 19700/68. Heading G5J. A keyboard is constructed so that individual keys can be shifted laterally to produce a vibrato or like effect. The keyboard frame 10 is equipped with a plurality of hollow keys 12 each having a key arm (not shown) fixed to the rear of the keys and pivotally attached to frame 10. A key guiding plate 16 having guides 18 for each key is elastically supported on frame 10 by a plurality of rubber bushes 24 held in slots 22 in plate 16 and screwed to frame 10. Each key guide 18 has a felt cushion 20, wound thereon which engages the key when depressed so that lateral movement of the key causes plate 16 to vibrate in sympathy. Relative movement between plate 16 and frame 10 actuates an capacitive transducer, 28, 28<SP>1</SP>, to produce the vibrato effect. Bushes 24 may be replaced by leaf springs Figs. 5 and 6 (not shown). In Figs. 7 and 8 (not shown), the vibrato effect is achieved by arranging a metal or plastic tape (54) underneath the keys along the length of the key board at such a height that the underside of the key, when depressed, contacts the tape and causes vibration to be imparted thereto. The tape is held tight by coil springs attached to its ends and to the frame of the instrument. In a further arrangement, Fig. 9 (not shown), the stopper which limits the downward movement of the key is formed by an inextensible tape and a brush-like layer (68) attached to the tape and the key board frame such that lateral movement of the key, when depressed, causes the tape to move against the brush-like layer. In both these latter cases the movement of the tape is picked up by a transducer. Fig. 12 (not shown), is a block diagram showing an arrangement of the key board and tone generators with their associated elements in which the transducer is connected through an amplifier to frequency modulate a tone generator. A vibrato oscillator is alternatively selectable to modulate the tone generator.
Patent GB-325455-A (GB)
Title: Improvements in or relating to the preparation of blende for sintering
IPC: C22B1/24
Filed: 1929-06-27
Abstract: 325,455. Soc. Anon. la Nouvelle Montagne. Jan. 5, 1929, [Convention date]. Agglomerating processes.-Zinc blende is prepared for sintering by adding zinc sulphate solution to the powdered ore and forming the product into vermicular grains by passage through an extrusion press.
Patent GB-215232-A (GB)
Title: Blast furnace tuyeres
IPC: C21B7/16
Filed: 1923-08-02
Abstract: 215,232. Beaton, G. Aug. 2, 1923. Tuyeres. - A waterjacketed tuyere for blast furnaces has a recess 16 formed in the portion of the nose nearest the hearth and adapted to contain refractory material 17 held in place by dove-tailed projections or studs 18. The refractory material is rammed into the recess and the tuyere is placed nose downwards on a plate in a core oven for a period of about 48 hours. When a vitrified refractory material is used, it is cast in the nose of the tuyere and prevented from shrinking by casting slots 19 in the outer casing of the tuyere. The recess may extend around the whole of the nose of the tuyere, the bottom of the recess being of inclined or spiral form so that the greater thickness of refractory material may be arranged towards the furnace hearth. Instead of studs for retaining the refractory material, dove-tailed transverse ribs extending radially of the recess may be employed. Water is led into the water jacket by a curved pipe 14.
Patent GB-1503215-A (GB)
Title: Distyryl disperse dyes
IPC: D06P1/16
Filed: 1975-05-12
Abstract: 1503215 Di-styryl disperse dyes SANDOZ Ltd 12 May 1975 [14 May 1974] 19783/75 Heading C4P [Also in Division C2] The invention comprises para-substituted-amino-beta,beta-dicyano- or beta-cyano-, beta-acyldistyryl disperse dyes in which the benzene nuclei of the two styryl radicals are connected by a bridge member. The dyes preferably have the Formula I where each R 1  is C 1-6  alkyl optionally monosubstituted by halogen, CN, OH, alkoxy, phenyl, phenoxy or acyloxy, each R 2  is H, halogen or C 1-6  alkyl or alkoxy, R 3  is or R 4  is CN or acyl, R 5  is a direct bond, -O-, -S-, -NR 9 -, -CO-, -O-CO-, -NR 8 -CO-NR 8 - or -NR 8 -SO 2 -NR 8 -, each R 5  is -NR 8 -CO-, -NR 8 -CO-O, -O-SO 2 -, -NR 8 -SO 2 -, -O-SO 2 -NR 8 - or is as defined for R 6 , any unsymmetrical radical as R 5  or R 6  being linked either way round, each R 7  is alkylene or alkylidene having up to 6 C atoms and optionally monosubstituted by halogen, CN, OH, C 1-6  alkoxy, phenyl, phenoxy or acyloxy, each R 8  is H, C 1-6  alkyl or, when R 3  contains any 2 NR 8  groups joined by an ethylene radical as R 7 , the 2 NR 8  groups and R 7  form a piperazine ring and R 9  is C 1-6  alkylcarbonyl or alkoxycarbonyl, the dyes of Formula I being free from acetal groups. The dyes of the invention may be prepared by condensing the corresponding di-benzaldehyde with malodinitrile or a mono-acyl derivative thereof and give yellow or greenish-yellow shades when used to dye or print polyester or cellulose triacetate materials.
Patent GB-224278-A (GB)
Title: Improvements in and connected with electric cables
IPC: H02G15/013
Filed: 1923-08-03
Abstract: 224,278. British Insulated & Helsby Cables, Ltd., Packer, J. L., and Vernier, C. Aug. 3, 1923. Drawings to Specification. Cable couplings to junction boxes &c. That portion of a lead sheathed or lead covered and armoured cable which lies adjacent to the wipe joint connecting the cable and box is reinforced by a covering or sleeve of metal or alloy having a low melting point, which is preferably cast round it and includes the end of the wipe joint. Where armouring is present the ends of the armour wires or tape may also be encased by the sleeve. A winding of copper &c. wire may first be applied over the exposed portion of the lead sheath and extended over the armour wires &c. as additional reinforcement and to protect the lead sheath from excessive heating during the casting. A detachable mould is employed and bonding lugs may be formed on or attached to the sleeve
Patent GB-680867-A (GB)
Title: Improvements relating to the venting and pressure release arrangements of electric accumulators
Inventor: FIELD BRAHAM ROWLEY
IPC: H01M2/12
Filed: 1950-08-10
Abstract: 680,867. Batteries. ALKALINE BATTERIES, Ltd. July 17, 1951 [Aug. 10, 1950], No. 19892/50. Class 53. A gas vent comprises a hollow body <SP>c</SP> having a passage e at the top and side openings h closed by an elastic band i. When the battery is in use the passage e is closed by a rubber pad g carried by the battery lid g<SP>1</SP>. When the battery is to be charged the lid is raised. If the lid is inadvertently closed when the battery is being charged or if the passage e becomes blocked, any gas evolved from the battery escapes through the openings h. In the form shown in Fig. 1, the body c is shaped at its lower end as shown at j to facilitate return of electrolyte condensing on the walls of the bore d. Fig. 2 shows a modification in which the bore d is provided with a partition m terminating a short distance from the passage e, one side of the bore being cut away to form a hole or gap k. If the battery is inverted when the lid g<SP>1</SP> is closed, the bore d becomes filled with electrolyte which runs back into the battery when this is returned to its normal position, the side of the bore d not containing the gap acting as a syphon to draw off the liquid from the side containing the gap.
Patent GB-620594-A (GB)
Title: Improvements in the remote control of electric motors operating toy locomotives and the like
IPC: A63H19/24
Filed: 1946-07-03
Abstract: 620,594. Remote control of A.C. motors. SOC. INDUSTRIELLE DE FERBLANTERIE. July 3, 1946, No. 19915. Convention date, Jan. 29, 1944. [Class 38(iii)] In a remote control system, an electric motor with twin series field windings 14 and 15, which are alternatively excitable for reversible operation, drives a toy locomotive or the like and is supplied through a tapped transformer. When an arm 4 engages a contact 10 a resistor 13 is included in circuit, and a low voltage, supplied to the tracks and track-brushes, is such that a solenoid 23 maintains an arm 22 in position so preventing a spring 21 from moving a finger 20 which co-acts with a change-over switch 19. The low voltage is insufficient to operate the motor, which may be of the A.C. commutator type. Movement of the arm 4 to engage contacts 6-9 in succession increases the voltage applied to the tracks so that the motor runs in its former direction at a speed dependent upon the position of the arm. When the arm 4 engages a contact 11 the tracks are de-energized so that the arm 22 releases the finger 20 and the switch 19 is moved to its other position when the solenoid 23 is re-energized upon return movement of the arm 4.
Patent GB-320359-A (GB)
Title: Improvements in and relating to the manufacture of dyestuffs
IPC: C09B67/00
Filed: 1928-07-09
Abstract: 320,359. Dunworth, S. W., Thomas, J., and Scottish Dyes, Ltd. July 9, 1928. Dye preparations.-Finely divided dyestuff powders are obtained by grinding the dry dyestuff, such as is obtained by removal by heat of the water from aqueous pastes of the dyestuff with or without soaps or other dispersing agents, with ether or other low-boiling liquids, such as chloroform, carbon disulphide, methyl alcohol, ligroin, petroleum ether, or acetone. In examples, (1) Caledon brilliant blue R, standard paste, is dried in the steam oven and ground with ether in a rotating ball mill, (2) Caledon blue GC powder is ground with chloroform; the product, after removal of the chloroform by gentle heating or evaporation in a vacuum, may be further ground, if desired, and used for dyeing and printing purposes or for the preparation of pigments, (3) Caledon brilliant purple R R is ground with ether, and (4) dry 1-methylaminoanthraquinone is mixed with Dispersol and ground with ether; the product is suitable for dyeing cellulose acetate.
Patent GB-449844-A (GB)
Title: Improvements in or relating to telegraph systems
IPC: H04L21/00
Filed: 1935-07-12
Abstract: 449,844. Copying telegraphy. LORENZ AKT.-GES., C., 1, Lorenzweg, Tempelhof, Berlin. July 12, 1935, No. 19964. Convention date, July 16, 1934. [Class 40 (iii)] In a writing telegraph of the type in which characters are traced by a spiral rib on a rotating cylinder, synchronizing-impulses are sent either in the intervals between linescannings, or in the intervals between letters and are prolonged by means of a discharge tube. Signalling is preferably effected by means of audio-frequency carrier current. Marking action. The anvil cylinder 7, Fig. 3, is moved axially on receipt of a signal by the magnet 9, and in this way the spiral 6 is caused to make a mark. Synchronizing. The recorder shown in Fig. 3 is adapted to be synchronized by impulses 4, Fig. 2, sent at the middle of each line period during intervals between the letters. Signals received by the receiver E pass through a distributer 14 geared down from the shaft 12, which makes one revolution per scanning- line. The distributer is so arranged that message signals are routed to the recording magnet 9 while synchronizing signals are routed through the rectifier 16 to control the speed of the motor M. The neon lamp 28 is extinguished once per revolution of the cam 17 by application of the battery 32 in opposition to battery 31, but is reignited on receipt of the synchronizing signal through contact 19. Thus the duration of the extinction of the lamp depends on the phase relation between the shaft 12 and the received synchronizing impulse. When the neon lamp 28 is alight, the relay 27 is energized and resistance 25 is connected to slow down the motor M. When synchronizing-impulses 3, Fig. 1, are sent in the intervals between line-scannings, the distributer 14 is driven directly by shaft 12 without the gearing 13.