baber/WOPTO huggingface dataset:
Patent GB-1425894-A (GB)
Title: Telephone line testing devices
IPC: H04M3/32
Filed: 1973-03-20
Abstract: 1425894 Automatic exchange systems SOCOTEL 20 March 1973 [21 March 1972] 13235/73 Heading H4K  In a testing device for telephone equipment, including a relay K which in one position connects a detector 1 of ringing tones into a telephone line ab and in another position connects an audio frequency generator 2 into the line, a counter 3 counts via relay 5 the telephone ring- ings and after a predetermined number both actuates the relay K to switch the generator into the line ab and also enables a timing circuit 16 which, after a pre-set time interval, brings back the counter 3 to its initial state thereby disconnecting generator 2 from the line. To detect three repeats of ringing key 10 is open. Voltage is applied to circuit 29, which puts flip-flop 5 to zero. At the beginning and end of each ringing signal relay S is actuated and falls back respectively, thereby switching contact S1. Thus the three flip-flops 5-7 are progressively switched. When FF7 changes state lamp 12 and relay K are actuated, to bring generator 2 into the line, and AND gate 18 is opened, to allow pulses from oscillator 17 to pass to counter 19. After a pre-set count output 22 applies re-set signals to the FF's. Hence relay K falls back and lamp 12 is extinguished. By closing contact 10 relay K is actuated after two repeats of ringing. Closing contact 20 alters the time to achieve the pre-set count. The circuitry, apart from units 1 and 2, may be in integrated circuit or printed circuit form.
Patent GB-1073495-A (GB)
Title: Improvements in apparatus for measuring angles
IPC: G01B3/56
Filed: 1966-03-25
Abstract: 1, 073, 495. Measuring angles. E. CELLIER. March 25, 1966 [March 31, 1965], No. 13427/66. Heading G1X. Apparatus for measuring angles comprises a semi-circular graduated dial 1a, a support 10 slidable along a rule 11 removably fixed at the rectilinear base of the dial, the support carrying a pivoted arm 14 the free end 14a of which co-operates with the dial 1a. In use the support 10 with the rule 11 and arm 14 are removed from the base 3 supporting the dial 1a, and the angle to be measured is set between the rule 11 and arm 14 and held by rotation of a locking lever 15. The rule 11 and support 10 may be locked against relative sliding movement by a knob 12. The assembly is then replaced on the base and the rule damped with its ends abutting the ends of the dial 1a by use of a cam lever 9. The edge 10' of the support 10 is also arranged to abut a stop 4 and this positions the pivot axis of the arm 14 at the centre of the dial. The required angle is then read off on the dial. The apparatus may also be used for marking out angles previously set using the dial.
Patent GB-134810-A (GB)
IPC: H05B7/10
Abstract: 134,810. F.I.A.T., Fabbrica Italiana Automobili Torino, Soc. Anon. Nov. 2, 1918, [Convention date]. Addition to 121,485. Electrode furnaces.-Each electrode holder is supported by angle bars A secured to an upper framework bolted to lateral uprights connected with the furnace structure, the lower ring and armatures described in the parent Specification being omitted. The water-cooled cylinder rests on the roof, and can slide through a fixed ring B when the roof expands or contracts. Inlet and outlet pipes are arranged at one side, preferably the outer.
Patent GB-1219394-A (GB)
Title: Improvements in or relating to manufacture of perfect bound books
Inventor: FLANAGAN THOMAS PETER
IPC: C09J153/02
Filed: 1969-03-14
Abstract: 1,219,394. Bookbinding &c. NATIONAL STARCH & CHEMICAL CORP. 14 March, 1969 [25 April, 1968], No. 13701/69. Heading B6A. [Also in Divisions C3, C4 and C5] In a method of bookbinding a spine is produced by roughening the backs of divers sheets made of paper, metal foil clad paper and plastics material and applying a hot melt composed of a random block polymer, a tackifier resin and a stabilizer for the polymer.
Patent GB-1461047-A (GB)
Title: Circuit arrangements for controlling automatic ignition devices
IPC: F23N5/20
Filed: 1975-04-03
Abstract: 1461047 Automatic control LGZ LANDIS & GYR ZUG AG 3 April 1975 [11 April 1974] 13748/75 Heading G3N [Also in Division F4T]  A circuit for controlling an automatic igniter 12 for liquid and gaseous fuels comprises a flame relay FR and a flame monitor 7, an operating relay AR and a thermal timer TZ, for producing a prescavenge or pre-ignition time, and a fault cut-out, wherein to ensure a complete fresh start in the event of a temporary voltage breakdown during a starting cycle the timer has two heating windings TZ I , TZ II , the latter forming a series circuit with a relay contact fr 2  of relay FR, and one of two windings 22, 23 of relay AR, and winding TZ I  being connected in parallel to the series circuit, wherein bi-stable auxiliary switches tf 1 , tf 2  are arranged in the actuating circuit of relay AR and in the pre-scavenging winding of timer TZ, respective switches being opened by relay FR when timer TZ is energized, and closed by the cooled timer when relay FR is released, and wherein flame monitor 7 has a self-testing action so that when voltage is applied, relay FR is temporarily actuated. In operation, with switches tf 1 , tf 2 , closed and winding TZ 1  in a cooled condition, thermostat 3 demands heat and closes, so that voltage is supplied to flame monitor 7, and due to its self-testing action FR is temporarily actuated to check the condition of TZ and immediately released if the monitoring circuit is operating correctly. Current is supplied to neutral line 2 via elements 3, tz 2 , 4, 5, tf, TZ 1 , and the latter is heated to control the pre-scavenge time blower 6 is energized, and igniter 12 is energized  via element fr, 11, tf 2 . After expiry of the prescavenge time TZ actuates switch tZ 1  and if there is no extraneous light a circuit 5, fr, tf 2 , tz 1 , 16, 20, 22, 23, fr2, TZ II  or resistor 25, 2, is completed. Relay AR is actuated to operate switches ar 1 , ar 2  to energize valve MV 1  to supply fuel. The latter is ignited, relay FR operates switches fr 1 , fr 2  and since TZ is still energized, opens switches tf 1 , tf 2 , so that winding TZ 1  and igniter 12 are switched-off. Switch fr 1 , fr 2  open and winding TZ II  is disconnected, relay AR is held by winding 23 and resistor 25, the bi-metal of TZ cools and after expiry of the post-ignition, time switch tz switches back to apply voltage to valve MV II  so that the required greater burner output is released. The system would be cut-off by the opening of switch tz S  if no flame were produced. If during a normal start there is a temporary interruption in mains voltage relay AR will be released and both valves MV I , MV II  will close. When the voltage returns the temporary actuation of FR causes switches tf 1 , tf 2  to open but only when TZ is not in starting position. This prevents a fresh start while TZ is still heated.
Patent GB-345547-A (GB)
Title: Improvements in or relating to felt hats
IPC: D04H13/00
Filed: 1930-05-06
Abstract: 345,547. Felt hats. HULME, T. and CARRINGTON & SONS, Ltd., S. R., Cale Green Hat Works, Stockport, Cheshire. May 6, 1930, No. 13831. [Class 63.] Felt hats are provided with net or knitted fabric combined with the felt to form a single fabric, the felt penetrating and projecting through the interstices of the net or knitted fabric and completely burying or covering some parts of the fabric whilst exposing or leaving uncovered other parts of the fabric. The fabric is preferably of cotton, or other material which will not shrink materially during felting. In forming a hat body, the net or knitted fabric is applied to one or both surfaces of the laid hair or wool, the form being then hardened or felted in the customary manner and then planked, these treatments being continued for longer than usual. The fabric may be applied to the felt in one or more pieces, and in the latter case the pieces may overlap or abut or be spaced apart. The netting may consist of a series of interconnected loops or meshes, some of which c are closer together than the others, and some of the intervening holes d are larger than the others. The net may be of multi-coloured threads or printed with different colours. An effect similar to a Scotch tweed can thus be produced. The hat is shaped or blocked as usual, and the net fabric enables the usual shellac stiffening to be dispensed with, if desired.
Patent GB-548640-A (GB)
Title: Improvements in and relating to grinding machines
IPC: B24B47/06
Filed: 1941-10-28
Abstract: 548,640. Variable-speed gearing. NORTON CO. Oct. 28, 1941, No. 13871. Convention date. Dec. 17, 1940. [Class 80 (ii)] [Also in Group XXIII] In a variable-speed, table-driving mechanism for a cylindrical type grinding machine, a motordriven driving pulley is formed of yieldingly opposed cones and is adjustably mounted with respect to the driven shaft to vary the' speed rates; the adjustment is effected hydraulically. The work table 20, Fig: 1, is traversed by a rack 35 and worm-driven pinion 36 through a reversing clutch 48 and a change speed gear driven from a pulley 57. The pulley 57 is driven through belt reduction gear 86, 87, 88, 89, Fig. 2, from a shaft 84 driven in turn by a belt 82 passing over the expanding pulley mounted on the motor shaft 75 carried on a pivoted cradle. The motor and pulley are moved about the cradle pivots 72, to vary the gear ratio, by means of a piston 93 andcylinder 90 to which liquid is supplied by a hand-operated pump 102, a release valve 116 being provided.
Patent GB-171717-A (GB)
Title: Improvements in apparatus for detecting or translating electrical impulses
IPC: H04B1/16
Filed: 1920-05-20
Abstract: 171,717. Radio Communication Co., Ltd., and Taggart, J. Scott-. May 20, 1920. Systems using valve amplifiers; telephonic receiving arrangements.-Two oscillating valves V<1>, V<2> are combined as described in Specification 166,189 so as to produce either a balancing effect, or a resultant beat note in the telephones T. A third valve V<0> acting as a variable resistance is inserted across the grid circuit of the valve V<1> so that incoming signals applied at X, Y vary the net resistance of the valve V‹, and thereby the frequency of the oscillations generated by the valve V<1>. This affects the combined resultant of the valves V<1>, V<2> and either causes a beat note to be heard in the phones, or else alters the frequency of the beat note to which the valves were initially set. As the variation of the net resistance of the valve V‹ is a function of the intensity of the received signals, the observed alteration in the telephone, note will also vary with the signal intensity. An abnormally-strong impulse applied at X, Y will throw the resultant beat outside the audible limit, thereby forming a protection against atmospherics &c. The incoming signals instead of varying the resistance of the valve V<0> may directly alter the capacity value of the grid circuit L<1>, C. In this arrangement one plate of the condenser C' is made of magnetic material, and is vibrated by the magnet of a telephone receiver to which the signal energy is applied. The resultant beats given by incoming signals may be above audibility, but by combining these with other locally-produced oscillations, secondary beats may be created to actuate the telephones. The arrangement may be used to receive continuous-wave signals, the rectified impulses being applied to the terminals X, Y. Or it may be employed in telegraphy to produce a buzzing note arising from the application of intermittent direct-current potentials. Specifications 153,690, 159,377 and 159,683, [all in Class 40 (v), Wireless signalling &c.], are referred to by way of disclaimer. According to the Provisional Specification, one valve may be arranged to oscillate at two different frequencies instead of using two separate valves, or a valve with more than one grid may be utilized; also the received impulses may be caused to vary the inductance (as distinct from the capacity) of the detector circuit.
Patent GB-1015579-A (GB)
Title: Improvements in or relating to valves for controlling fluid flow
IPC: F16K1/24
Filed: 1963-04-09
Abstract: 1,015,579. Valves. A. E. TOPHAM and: C. H. TOPHAM. Jan. 30, 1964 [April 9, 1963], No. 14042/63. Heading F2V. The subject-matter of this Specification is similar to that described in Specification 793,107, but the transverse shaft 5 embodies a number of cams 7 which coact with the back of the closure member 1 under the action of one or more pairs of oppositely arranged leaf springs 9, the inner ends of which are curved to engage the shaft 5. Each cam is streamlined to facilitate fluid flow when the valve is open. The or each pair of leaf springs may comprise an integral element; the spring may be of the torsion kind employing wire of round or other cross-section.
Patent GB-574005-A (GB)
Title: Improvements in and relating to circular knitting machines and hose and the like produced thereon
IPC: D04B9/46
Filed: 1944-06-30
Abstract: 574,005. Knitting. BIRD & YEOMANS, Ltd., OSBORNE, W. T., COOK, L. T., and BEASLEY, E. G. June 30, 1944, No. 14090/45. Divided out of 573,992. Drawings to Specification. [Class 74 (ii)] In knitting a stocking blank upon a circular machine by rotary knitting, the back of the leg being fashioned by an upwardly convergent gap that is shaped, with non-selvedged edges, by a variation in the number of active needles, a heel is produced during rotary knitting by narrowing and widening. The toe may be produced as a pouch by reciprocatory knitting on the instep needles, so that the linking line is at the underside of the foot. The blank may have an area of splicing which is widened and narrowed, the spliced area being of reduced width between the toe and the heel. The method of knitting the blank, and the machine therefor, are described in Specification 573,992.
Patent GB-985931-A (GB)
Title: Improvements in mulitiple-frequency oscillators controlled by a stable source
Inventor: OXFORD ALAN JOHN HENRY
IPC: H03L7/20
Filed: 1960-04-22
Abstract: 985,931. Automatic frequency control systems. PLESSEY CO. Ltd. June 21, 1961 [April 22, 1960], No. 14167/60. Heading H3A. An oscillator 6 is locked in frequency at a selected integral multiple of a basic frequency (1 kc./s.) derived by frequency division from a stable master frequency oscillator 1 by producing pulses from the basic frequency (or a submultiple of it) which sample in a gate circuit 5 the instantaneous phase of sawtooth or other oscillations from the oscillator 6, to produce an output retroactively stabilizing its frequency by control line 7. Further, the frequency selected is set up by pulses adjustably delayed (e.g. by 1 Ásec., 10 Ásec., 100 Ásec.) in delay networks D1, D2, D3 controlled by decade knobs and produced at instants determined by gates G1, G2, G3 when zero instantaneous values of the frequencies from oscillator 1 and dividers 2, 3 occur, the 1 kc./s. pulse output from the last divider 4 also controlling the gates G1, G2, G3 so that only the first pulses from oscillator 1 and dividers 2, 3 are effective. The gated outputs from successively fine and coarse control gates G4-G6 successively operated manually by switches S4-S6 then stabilize the controlled oscillator 6, the delays D1, D2, D3 being so chosen that the delayed pulses then coincide with zero cross-over values of the slave oscillator waveform. In Fig. 6 (not shown), a single gate replaces gates G1-G3 and is connected in sequence by a switch to dividers 3, 2 and oscillator 1, an adjustable common delay network being conjointly operated in sequence to adjust its delay. The variable delay may be produced by applying a pulse to a sawtooth forming C-R network having a capacitor series connected to the tapping point of a variable potentiometer with variable applied voltage. Or the delayed output may be taken from a potentiometer connected across a constant voltage and ganged with a variable potentiometer tapping connected to the series capacitor. In each case the termination of the sawtooth recovery voltage is used for deriving the delayed pulse. In Fig. 7, the output of coarse control gate G6 (Fig. 5) is applied to the base of one transistor T1 of a long-tailed pair T1, T2, the output of a finer control gate G5 being applied via a reference voltage potentiometer tapping 11 to the base of the other transistor T2, so that a difference between the two inputs is applied to a third transistor T3. The output of the latter is taken from the junction of two rectifiers 15, 14 series connected with like polarity across part of the emitter circuit resistance so that the fine control input at 19 to the rectifier junction is inoperative until the coarse control input to transistor T1, T3 decreases to a value rendering rectifiers 15, 14 non-conductive. A voltmeter 21 indicates whether the coarse or fine control is operative.
Patent GB-762230-A (GB)
Title: Machine for shearing or forming sheet metal work
IPC: B23D27/00
Filed: 1954-05-14
Abstract: 762,230. Shearing; angular bending. CARDELL, O. May 14, 1954, No. 14201/54. Class 83 (4). [Also in Group XXVI] In a machine for shearing or bending sheet metal having a frame with upper and lower arms supporting a reciprocating and a stationary tool, respectively, the moving tool is actuated by a cam reciprocated transversely between the upper tool holder and an abutment by a motordriven eccentric which is adjustable to vary the reciprocation of the moving tool. The tool-holder 60 carrying the moving tool 30 is slidably and non-rotatably mounted in a sleeve 70 secured to the upper arm 12 of the C-shaped cast or fabricated frame 10. The opposed surfaces of the cam on the arm 80 of the eccentric 82, the abutment 92 and the tool holder 60 are concave and spaced apart by balls or rollers 98 and springs 68 urge the tool holder 60 upwardly. The abutment 92 is adjustable by a three-position cam 100 actuated by a lever 102. The driving-shaft of the eccentric 82 is carried in brackets which are pivotally or slidably mounted in the frame 10 so that the shaft can be adjusted longitudinally of the arm 80 to positions in which the tool 30 is reciprocated once or twice during each revolution of the shaft. An electric motor 84 driving through a belt the shaft of the eccentric 82 is carried on a hinged flap 133, the position of which may be varied by bolts 135 to tension the belt. In order to vary the stroke of the tool a variable eccentric, Figs. 6 and 7, may be used. Between the eccentric strap connected to the rod and the driving shaft 120 are interposed eccentric sleeves 124; 130. The larger sleeve 130 has a projecting portion having flats 136, 138 and the smaller sleeve 124 in which the shaft 120 is secured has a projecting arm 128. In dependence on the direction of rotation of the shaft 120, the arm 128 engages one of the flats 136, 138 so that the effective eccentricity of the eccentric is either the sum of or the difference between the eccentricities of the sleeves 124, 130. The lower tool 28 is secured in a holder 20 and rests on a bolt 33, the position of which is alterable. The holder 20 is clamped in a split rod 16 which is secured in a split socket 15 in the lower arm 11. A locating pin 44 engages with one of a number of slots in the rod 16. The shearing tools may be replaced by bending dies 140, 142, Figs. 8 and 9. An adjustable and rotatable work clamp 114 is secured between the arms 11, 12 of the frame 10.
Patent GB-986644-A (GB)
Title: Novel derivatives of salicylic acid and preparations thereof
Inventor: REGNIER GILBERT
IPC: C07D295/155
Filed: 1962-04-12
Abstract: The invention comprises salicylic acid derivatives of the formula <FORM:0986644/C2/1> wherein R represents a hydrogen atom, a formyl group, a carbobenzoxy group, a phenyl radical, or a phenyl radical substituted by a halogen atom, a C1- 5 alkyl radical or a C1- 5 alkoxy radical, R1 represents a hydrogen atom, an acetyl group, a C1- 5 alkyl radical or a C1- 5 alkenyl radical, Y represents a hydrogen atom, a hydroxyl radical or a methyl radical, the methyl radical being in the o- or m-position with respect to the -OR1 group, and X represents a hydroxyl radical or a C1- 5 alkoxy radical, and their acid-addition salts.  The compounds are prepared by condensing a compound of the formula <FORM:0986644/C2/2> wherein Z represents a halogen atom, with an N-monosubstituted or unsubstituted piperazine of the formula <FORM:0986644/C2/3> in the presence of a solvent at the boiling temperature of the solvent, and in the presence of an alkaline agent, an acceptor of a hydracid, e.g. K2CO3, triethylamine or an excess of the N-monosubstituted or unsubstituted piperazine. The compounds where R1=H and X=OH may also be prepared by condensing at a temperature between ambient and 50 DEG  C. a compound of the formula <FORM:0986644/C2/4> with the appropriate N-substituted or unsubstituted piperazine, in the presence of formaldehyde, the reaction being carried out by dissolving the piperazine in a solvent, e.g. a C1- 5 alcohol, and adding thereto an aqueous solution of formaldehyde in equi-molecular proportion and the salicylic acid. Pharmaceutical compositions having anti-inflammatory and analgesic activity comprise a compound of the invention together with a pharmaceutical carrier.
Patent GB-220994-A (GB)
Title: Improvements in or relating to electric switches
IPC: C25D9/06
Filed: 1923-05-30
Abstract: 220,994. Reyrolle & Co., Ltd., A., and Minton, R. C. May 30, 1923. Controllers with auxiliary switches.-A starting and nesastance regulator for a motor-converter comprises a rheostat arm A movable over a row of contact studs B and adapted, on reaching the left hand limit of movement, to actuate a pivoted member D<2> which breaks a short-circuit around a resistance C. The arm can then be moved back so as to varv the amount of resistance nicluded in the field circuit. At the right-hand limit of movement the short-circuiting switch F and an auxiliary switch J in a starting circuit are reclosed. When used in an automatic suhstation the regulator may be locked in the starting position.
Patent GB-809726-A (GB)
Title: A narcotizing plant for bacon hogs and similar livestock
IPC: A22B3/00
Filed: 1957-05-06
Abstract: 809,726. Animal narcotizing plant. WERNBERG, N. E. May 6, 1957 [May 9, 1956], No. 14314/57. Class 81 (1). In a narcotizing plant for bacon hogs and similar livestock in which the animal is retained and later removed lying on one outwardly and downwardly swivelling side wall of the trap 5, the latter is mounted so that it may be moved down into a pit 12 containing a narcotizing gas such as carbon dioxide and be returned to its starting position, where the narcotized animal may slide from the lowered side wall on to a platform 17 located beside the trap. As shown the animal passes along an animal supply passage 1 bounded at one end by a door 3 constituting a part of a cylinder and rotatable about a vertical pivot 2 and having an operating arm 4, into a trap 5 movably suspended by means of an upper and a lower pair of rollers 6 and 7 in two double rails (of which only one 8 is shown). When the door 3 has been closed, an elevator mechanism 11 in which the trap is suspended is operated through a switch 9 being pressed by the arm 4 when the door 3 is closed so as to energize a relay system operating the elevator mechanism so that the trap is lowered to the bottom of a pit 12 filled with carbon dioxide and hoisted to its starting position after about 50 seconds. The side wall 15 is released by a pawl mechanism 13, 14 and is swung outwards and downwards with the animal lying on it into a downwardly incling position in which it is supported against a platform 17 on to which the animal slides, the side wall returning to its closed position in which it is locked by means of the pawl 14 that has been released in the meantime. A single elevator mechanism 11 may operate two traps arranged side by side and connected with the elevator mechanism in such manner that one trap is moving down while the other is moving up, each trap having its separate door 3 and separate platform.