baber/WOPTO huggingface dataset:
Patent GB-1190521-A (GB)
Title: Improvements in or relating to Telephone Circuits
IPC: H04M1/60
Filed: 1968-02-21
Abstract: 1,190,521. Anti sidetone circuits: sub. sets. NIPPON TELEGRAPH & TELEPHONE PUBLIC CORP. 21 Feb., 1968 [25 Feb., 1967], No. 8383/68. Headings H3T, H4K and H4R. An anti sidetone circuit which provides speech amplification includes a four-terminal network which is effectively a current generator across the input terminals whose output is proportional to the output voltage, and a current generator across the output terminals whose output is proportional to the voltage across the input terminals. The four-terminal network N 1  may be connected as shown in Fig. 1 with the line, the transmitter, and the receiver, connected across the terminals H<SP>1</SP>, 2-2<SP>1</SP> and 3-3<SP>1</SP> in various permutations, in which case the four-terminal network may be realized as shown in Fig. 7. Alternatively the four-terminal network may be arranged as N 2  in Fig. 2, in which case the network is realized as in Fig. 7 with the impedances Z 1  and Z 2  interchanged. Fig. 8 shows the anti sidetone circuit in a subset in which, if Z 1  is equal to Z 2 , the line impedance, then no sidetone is produced in the receiver from signals in the transmitter, and by appropriate choice of Z 2  and the impedances of the line, transmitter, and receiver, gain is obtained. By making Z 1  variable with the D.C. feed current the anti-sidetone facility is maintained for all subscriber line lengths. Also by making the remaining impedances vary with feed current the send and receive gains may be varied to cater for different line lengths. Alternative arrangements permuting the connections of the line, transmitter, and receiver in the basic networks of Figs. 1 or 2 are illustrated in Figs. 9 to 13 (not shown).
Patent GB-1064191-A (GB)
Title: Folding door with flexible joint
Inventor: DIXON GUY EDWIN
IPC: E06B3/48
Filed: 1964-02-28
Abstract: 1,064,191. Slidable folding doors; flexible hinges. PANELFOLD DOORS Inc. Feb. 28, 1964, No. 8439/64. Headings E1J and E2F. In a sliding folding door each panel 66 is flexibly connected on each side rigid strip 64 by means of thin flexible vinyl strips 76 and the panels supported from a guide track in known manner. The rigid strip may be in two parts 72, 74 sandwiching the continuous flexible strip 76 therebetween the two ends of the strip 76 having enlarged ends 78 and received in grooves 80 and the enlargements 82 thereof in the panels 66. The strip 76 may have a lateral rib on each side (Fig. 8, not shown) which is received in a correspondinly shaped groove in each of the parts 72, 74. The strip 76 and the rigid strip 72, 74 may be moulded in one piece from resilient vinyl material Figs. 5, 9 (not shown). The picket is provided on its edge faces with recesses to receive the end edges of the panels 66 in the closed position.
Patent GB-1495367-A (GB)
Title: Device for the recording and reproduction of signals
IPC: G11B15/61
Filed: 1976-03-03
Abstract: 1495367 Guide drums for rotary-head tape recorders ROBERT BOSCH GmbH 3 March 1976 [8 March 1975] 08462/76 Heading G5R The two parts 1, 1<SP>1</SP> of a guide drum enclosing a rotary head 2, 3 are predeterminedly located relative to a support 4 by circular members 5-8 in a recess in the support 4. The drum is secured to the support 4, but spaced therefrom by the members 5-8, by screws (9), Fig. 2 (not shown), and radial dowel pins (10). The members 5-8 may be cylindrical, e.g. needle bearings, or spherical, e.g. ball bearings.
Patent GB-416792-A (GB)
Title: Improvements in or relating to the manufacture of paper
IPC: D21F1/04
Filed: 1933-03-21
Abstract: 416,792. Cylinder paper making machines. MILLSPAUGH, W. H., 101, Columbus Avenue, Sandusky, Ohio, U.S.A. March 21, 1933, No. 8513. [Class 96.] In a cylinder paper-making machine wherein pulp is fed between adjustable plates 2 on the walls of the vat, and on to a wire-cloth 7 which travels over the suction zones of the cylinder 3, the plates 2 are spaced away from the wire 7, air being drawn through such spaces 8, by suction of the suction box, the ends 4<a> of which are beyond the edges 9<a> of the web 9, such air currents strengthening the edges 9<a> and removing water from the marginal portions of the wire 7. The invention is applicable to machines as disclosed in Specification 278,817, [Class 96], for making single or multiple-ply paper, or in Specification 332,125, [Class 96], i.e. to machines having divergent plates 22, or to the production of newsprint as disclosed in Specification 288,212, [Class 96].
Patent GB-141189-A (GB)
Title: Improvements in apparatus for the production of gaseous fuel for internal combustionengines
IPC: F02M21/00
Filed: 1919-04-07
Abstract: 141,189. Commercial Cars, Ltd. and Thomas, E. W. April 7, 1919. Controlling handles associated with hand steering-devices.-The hand-levers 28, 29 for operating respectively the secondary air and the mixture throttles of an engine vaporizer are mounted above the steering- wheel and are so arranged that they may be moved relatively to adjust the relative position of the throttles, out may be also moved in unison to operate the throttles simultaneously. As shown in Fig. 5, this is effected by providing an adjustable coupling 42 between the throttle-operating rods 38, 39, which are connected respectively to the hand-levers 38, 39. In a modification, the hand-levers 28, 29 are held in engagement with one another by a friction clutch, the couplings 42 being dispensed with.
Patent GB-883459-A (GB)
Title: Improved fluid control tap
Inventor: BROWN HARRY
IPC: B05B1/30
Filed: 1957-03-18
Abstract: 883,459. Valves. PEGLERS Ltd. March 14, 1958 [March 18, 1957], No. 8869/57. Class 135. A tap comprises a tubular body 10 with an inlet 11 and a threaded part 12 engaged by a tapered sleeve 13 with a capstan handle 28, the sleeve having a discharge nozzle part 14 and incorporating main and auxiliary valve seats 17, 18, respectively. Co-operating with seat 17 is a tapered closure 19 supported by the tapered wall of the nozzle part 14 and embodying an extension 21 that abuts a loose ball closure 22; unintentional removal of the sleeve 13 is prevented by a set-screw 27. The tap is closed by threading the sleeve 13 up the body 10, the main closure 19 being carried on to its seat in the nozzle 14; upon threading the sleeve down the body the closure 19 is freed and then forced by the water from its seat. The lower part of closure 19 is axially fluted to prevent turbulence. The closure 19 may be renewed by slackening the set-screw 27 and removing the sleeve and closure 19 from the body whereupon the loose ball 22 engages seat 18 and prevents flow of water through the valve. The closure 19 is made of polyamide or polyethylene resin.
Patent GB-1543253-A (GB)
Title: Automatic zeroing of weighing device with digital display
IPC: G01G19/414
Filed: 1976-03-05
Abstract: To obtain an indication of 0.000 kg in spite of small deviations of the measuring bridge loading of the scales from the tare weight, for example due to position changes, vibrations, weighing remainders and so forth, a differentiating unit (7) is provided by means of which the counts of the counter (4) are monitored and which, up to a particular deviation of the counting mechanism from the value corresponding to the zero indication outputs a correction command to a correction unit (5). The correction unit (5) in turn sets the counter (4) in such a manner that the said deviation disappears and accurate zero is indicated. <IMAGE>
Patent GB-102924-A (GB)
Title: Improvements in Speed Indicators.
Inventor: JAEGER EDMOND
IPC: G01P3/10
Filed: 1916-01-26
Abstract: 102,924. Jaeger, E. Dec. 24, 1915, [Convention date]. Addition to 100,542. Periodic-counter speed indicators. - In apparatus of the kind described in the parent Specification, the rocking-lever by means of which the distance &c. drive is communicated to the indicator is provided with two coupling-shafts whereby the frequency of the couplings is doubled without diminishing their duration. A supplementary pointer is employed to show the number of rotations of the main indicating-hand, a unidirectional drive is introduced, and damping-means are provided for the main indicating-hand. The rocking lever 22 has mounted therein, after the manner described in the parent Specification, two shafts 25, 26 driven from the main shaft and bearing coupling-wheels 27, 28 adapted to engage alternately wheels 29, 30 loose on the indicator shaft 31. Reciprocation of the lever 22 is effected by pins 21 on the escapement-controlled barrel 15. Motion is conveyed from the wheels 29, 30 to the indicator shaft through a wheel 34 keyed thereon, single-toothed members 35, 36, Figs. 4 and 9, on the wheel 34 being engaged by Geneva-wheels 37, 38 on the driving-wheels, each having three teeth and a stop-portion 37<2> which allows the wheel 34 to make three revolutions. Engaging with the three wheels 29, 34, 30 are three pawls 41, 42, 43 which are mounted on the same spindle and are constructed as shown in Figs. 6<a>, 7<a>, 8<a>. They are controlled by a pin 45 on a lever 46 reciprocated by a cam 20 on the barrel 15 having the configuration shown in Fig. 1. Spring-retracted sectors 50, 51 engaging pinions 48, 49 are employed to return the wheels 29, 30 to zero, and are provided with justifying-pawls 57 for the zero position. A third sector 39 engaging a pinion 33 on the shaft 31 is provided to zeroize the wheel 34 and the indicating-hand. The secondary hand is operated by a pinion 64 on the shaft 31 through a toothed sector 65 and gearing 66, 67, as shown in Fig. 2. Damping-devices.-To prevent oscillation of the pointer B, Fig. 4, it is carried by the hub of a disk 58 which is braked by a spring 61, Fig. 5, and driven from the shaft 31 through a pin and slot. The zero position of the hand is defined by the engagement of the spring with a notch 62 in the disk 58. Transmission mechanism.-The unidirectional drive comprises a bar 69, Fig. 3, frictionally mounted on the shaft of the driving-wheels 3, 4 and having at one end a projection moving between stops 72, and at the other a wheel 5 and an arm 70 moving between stops 71 and pivoted on the shaft of the wheel 5. Carried by the member 70 is a wheel 6 similar to, and engaging with, the wheel 5. When the wheel 4 is rotating in the direction of the arrow d, the parts will be moved by the frictional drive and by a stop 73 into the position shown in full lines, where the wheels 6. 7 are in engagement and are driven through the wheel 5. When driven in the reverse direction, the position of the parts is changed to that shown in dotted lines, the wheel 7 then being driven by the wheel 5 only.
Patent GB-427919-A (GB)
Title: Transmission systems for motor-vehicles
IPC: B60K17/04
Filed: 1934-03-22
Abstract: 427,919. Motor-vehicle driving-gear. M.G. CAR CO., Ltd., CHARLES, H. N., and COUSINS, H. E. C., Abingdon-on-Thames. March 22, 1934, No. 8985. [Class 79 (ii)] The propeller shaft 14 is arranged at a lower level than the engine shaft and than the centre of the driven axle, and drives the latter through right-angled gearing 19 and a pair of parallelaxle gears 20, 21. The front end of the propeller shaft is driven through gears 17 which may be provided between the engine and change-speed gear 13 as shown or may be between the clutch and the change-speed gear. The gear pairs 19 and 20, 21 provide a speed reduction and the gears 17 may also provide a speed reduction or may be of equal size. The gears 17, 20, 21 may be double helical gears and the gears 19 of the spiral bevel type.
Patent GB-1166058-A (GB)
Title: Computer Control
IPC: G06F9/32
Filed: 1967-02-24
Abstract: 1,166,058. Programme control of computers. TELEFONAKTIEBOLAGET L.M. ERICSSON. 24 Feb., 1967 [25 Feb., 1966], No. 9065/67. Heading G4A. In a computer, an instruction from an instruction memory specifies part of an address, the rest of which is supplied by the computer's microprogramme unit, and this address is used to address a table of addresses in a data memory to obtain the address of the next instruction in the instruction memory, the table containing not all instruction addresses. As described, the type of instruction for which the above facility is used is branch instructions.
Patent GB-1024836-A (GB)
Title: Improvements in or relating to pneumatic tyres
Inventor: DURBRIDGE DENNIS GEORGE
IPC: B60C11/01
Filed: 1962-03-09
Abstract: 1,024,836. Pneumatic tyres. DUNLOP RUBBER CO. Ltd. Feb. 18, 1963 [March 9, 1961], No. 9075/62. Heading B7C. A pneumatic tyre for a two-wheeled vehicle comprises a tread 7 having a rounded apex centre portion 8 and adjacent side portions 9 which, in the transverse cross-section of the tyre and the uninflated state, are radially inwardly divergent and substantially linear, and a carcass having at least one reinforcing ply 2 of rubberized parallel cords, the carcass consisting of a radially outer portion having an apex 4 and adjacent side portions 5 provided with substantially the same contour as that of the tread 7, and two radially inner portions which extend axially outwardly in a radially outward direction, one from each bead region of the tyre. The side portions 9 extend radially inwardly at an angle of 25 to 55 degrees to a radial line. The tread pattern on each side portion 9 comprises a circumferentially extending zig-zag groove 10a, each straight portion 10b of which is disposed at an angle of 10 to 40 degrees to a circumferentially extending line to prevent sideways skidding when cornering. The tyre may be provided, between the carcass and at least the side portions 9 of the tread, with a breaker ply or plies, the cords of which are disposed at an angle of 20 degrees to a circumferential line of the tyre. When the tyre is inflated the side portions of the tread and the carcass retain their substantially linear form in cross-section so that when the vehicle to which the tyres are fitted heels over on cornering, the tread surface area which makes contact with the road is greater than the area which makes contact when running in a straight line. The tyre is assembled on a cylindrical drum and then shaped in a mould having the appropriate profile. Alternatively, the tyre may be assembled on a former having a crosssectional shape substantially the same as the internal cross-sectional shape of the tyre described.
Patent GB-399830-A (GB)
Title: Improvements in and relating to the speed control of dynamoelectric machines
IPC: H02P25/18
Filed: 1932-03-30
Abstract: 399,830. Automatic regulation; dynamo electric machines. INTERNATIONAL GENERAL ELECTRIC CO., Inc., 120, Broadway, New York, U.S.A.- (Assignees of Allgemeine Elektricitats-Ges. ; 2, Friedrich Karl-Ufer, Berlin.) March 30, 1932, No. 9153. Convention date, March 30, 1931. [Classes 35 and 38 (iv).] Terminals and accessories, 'arrangement on machines.-In a system for maintaining the speed-of a dynamo-electric machine constant, employing rotating contacts which, under the influence of centrifugal force, connect resistances to, or disconnect them from the rotor winding of the machine, to load it and relieve it alternatively, the resistances and contact assembly are mounted on the rotor shaft to rotate in common therewith. A generator 1, 4, Fig. 1, supplying direct current from brushes 2, 3, and alternating-current from slip rings 7, 8, has resistances 12, 13, 14, connected to points of the armature winding 1, and controlled by contacts 21, 22, 23, and spring-mounted contacts 31, 32, 33, carried by a disc 19 mounted on the hollow machine shaft 27, Fig. 2. The resistances are wound in disc form and carried by the shaft 27 in which the electrical connections are accommodated. The Specification as open to inspection under Sect. 91 comprises also an arrangement for maintaining the voltage of a generator constant. This subject-matter does not appear in the 'Specification as accepted.
Patent GB-541121-A (GB)
Title: Improvements in electric control apparatus
IPC: H01H9/26
Filed: 1940-05-27
Abstract: 541,121. Controllers; momentary contact switches. BRITISH THOMSON-HOUSTON CO., Ltd., and WISE, W. L. May 27, 1940, No. 9303. [Classes 38 (iii) and 38 (v)] A multi-position drum 4 can only be moved from one position to another after the handle 6 has been depressed, thereby opening contacts A and breaking the holding circuit of a line contactor 14. After the handle 6 is released contacts A reclose and contacts B make a momentary closure to energize the coil of the contactor 14. Momentary closure of contacts B ensures no-volt protection, for, after voltage failure, the contactor will not automatically reclose as the contacts B are open. In a modification, the contacts B are closed by an upward movement of the handle 6 beyond its normal position. Momentary closure of contacts B is obtained by connecting the moving contact member to the piston 17 of a dash-pot. When the cylinder 18 is moved upwards the contacts are closed and remain closed until air has escaped from the dash-pot whereupon a spring 16 is able to open the contacts.
Patent GB-765904-A (GB)
Title: Process for treating thermoplastic polymeric films
IPC: B29C55/12
Filed: 1955-03-30
Abstract: A process for the production of molecularly oriented thermoplastic polymeric films, especially applicable to films of a thickness "as cast" greater than 75 mm., comprises stretching the film and thereafter rolling it in a direction substantially at right angles to the stretching direction.  The polymer may be stretched, at temperatures up to 50 DEG  C. higher than the second order transition temperature, to up to four times its original length and, within the same temperature range, may then be rolled in the direction at right angles to the stretch until the film is reduced to as little as one quarter of the thickness before rolling.  The film may then be heat-set at an elevated temperature, below the crystalline melting temperature, under conditions which do not allow of shrinkage.  Two classes of polymers, both having second order transition temperatures above 0 DEG  C. but substantially below the crystalline melting temperature, may be treated, viz., (a) those which are readily quenchable to an amorphous form, such as polymers of ethylene terepthalate, hexamethylene adipamide or caproamide and copolymers of ethylene terephthalate and ethylene isophthalate; and (b) those which are not more than transiently obtainable in an amorphous form, such as polyvinyl fluoride, polyethylene and polymerized formaldehyde. Details are given of polyethylene terephthalate films treated by the process, together with methods for measuring the second order transition temperature of polymers.  Other polymers of class (a) which may be treated are those of ethylene - 2,6 - naphthalate, tetramethylene-1,2 - dioxybenzoate, and ethylene - 1,5-naphthalate. Specifications 578,079, [Group IV], 695,567, 743,503 and 753,299 are referred to.
Patent GB-238155-A (GB)
Title: Improvements in and relating to anti-skid attachments for motor vehicles
IPC: B60B39/00
Filed: 1925-04-08
Abstract: 238,155. Barensod, J. O. April 8, 1925. Back struts; skid.-An anti-kid attachment for motor vehicles comprises, at each side of the vehicle, an arm 1 pivotally supported at its forward end by a bracket 2 on the chassis 3 in front of the rear axle 8, the rear end of the arm terminating in a ground-engaging claw 6, a pair of toggle links 11 connected to the rear portion of the arm and to the mounting 10 for the rear vehicle spring, a spring 12 normally holding the arm raided, and a cable 13 connected to the pivot of the toggle links and guided by pulleys 15, 16 to an operating device near the driver, the forward end of the cables from opposite sides of the vehicle being connected together. To avoid skidding of the rear wheels when the vehicle is stopped, the cable is pulled forwards to lower the arms 1 and cause the claws 6 to engage the ground. The arms 1 may be connected together by a cross-rod 7 so that they operate simultaneously.
Patent GB-565901-A (GB)
Title: Improvements in and relating to spools
IPC: G03B17/30
Filed: 1943-06-11
Abstract: 565,901. Spools for photographic films. MITCHELL, J., and HORTON, A. G. June 11, 1943, No. 9433. [Class 98 (i)] [Also in Group IX] A loaded spool of photographic film comprises two cylindrical coremembers 1, 2, flanges 3, 4 secured to one end of each core-member, means such as a bayonet joint 6, 7 for locking the other ends of the members 1, 2 together to form a spool having a composite core of uniform diameter, and a hollow cylindrical outer core having a coil of photographic film wound thereon which forms a close fit over the assembled core 1, 2. To reduce any tendency to slip the hollow cylindrical core is formed of slightly compressible material and its axial length is slightly greater than the distance between the flanges of the assembled spool. A pin 8 may be provided to engage a slot in the hollow cylindrical core and prevent its rotation on the core 1, 2.
Patent GB-1275792-A (GB)
Title: An improvement in or relating to foldable measuring rules
Inventor: FENTON ALAN O'CONNOR
IPC: G01B3/06
Filed: 1969-02-21
Abstract: 1275792 Knuckle joints WILLIAM MARPLES & SONS Ltd 23 Jan 1970 [21 Feb 1969] 9525/69 Heading E2F [Also in Division Gl] A folding rule comprises plastics measuring elements (10, 12, 16, 18 Fig. 1 not shown) pivoted together by knuckle joints (20) in which parts 22, 24 of the knuckle joints are moulded integrally with the measuring elements and are reinforced by pairs of metal hinge plates 34, 36 of which root portions are embedded in the ends of the elements and protruding end portions are pivotally connected by a pivot pin 26 extending through them and the integrally moulded parts.
Patent GB-549131-A (GB)
Title: Improvements in brake mechanism for trailer vehicles
IPC: B60T7/20
Filed: 1941-07-28
Abstract: 549,131. Locking levers and rods. BENN, R. July 28, 1941, No. 9567. [Class 80 (iii)] [Also in Group XXXIV] In brake mechanism for trailer vehicles comprising a spring loaded rocking lever that is actuated by the draw bar to apply the brakes when the trailer tends to overrun the tractor. means are provided for holding the lever in an "on" position when the vehicle is stationary and unattended, these means being adapted to move automatically in an inoperative position to free the brake when initial movement of the trailer occurs. A lever 5 pivoted on a cross-bar 6 of the towing frame 7 of the trailer is connected to the brakes by members 11, 12. The lever is adapted to be held in a brakes applied position by the engagement of a toothed member 14 pivoted to the lever with an edge of the bar 6, the member 14 being held in engagement against the action of a spring 17 by the effect of the brake release spring 13. The brakes may thus be manually applied by the lever and be held applied by the member 14. The jar caused by initial movement of the trailer by the towing vehicle effects the disengagement of the locking member 14 which then snaps upwards under the influence of the spring 17. During travel of the vehicles should the trailer overrun the towing vehicle the brakes are applied by engagement of the slidable towing bar 2 with the lever, release being effected by the spring 13 when the bar returns.