baber/WOPTO huggingface dataset:
Patent GB-735022-A (GB)
IPC: D01H5/50
Filed: 1951-12-18
Abstract: 735,022. Weighting and mounting top rollers. S.K.F. - KUGELLAGERFABRIKEN GES., [formerly VEREINIGTE KUGELLAGERFABRIKEN AKT.-GES.]. Dec. 18, 1951 [Dec. 21, 1950], No. 29661/51. Class 120(2). A top roller carrier for a textile drawing frame comprises a carrier member and a bracket member one end of which embraces a pivotal support in the carrier member and which is shaped to constitute the lower support of the loading means and has on its lower face spring means for retaining a top roller shaft. A separate bracket may be provided for each top roller shaft. The carrier member 1, Fig. 1, may be channel-shaped and carries a pin 2 which is embraced by a saddle portion 3 of a bracket 4. The saddle portion 3 may be inwardly bent as shown in section, Fig. 3, to provide a line contact so that both lateral and vertical oscillation of the bracket is permitted. The lower end of the bracket is bent to form a half sleeve bearing 5 in which the roller shaft is retained by a spring 7. Loading pressure is supplied by a spring 11 between the carrier 1 and an abutment 10 on the bracket 4. Two wing portions 8 may be bent upwardly from the bracket to engage with a stop 9 when the carrier 1 is lifted so that the bracket may be raised also. In a modification, Fig. 4, the saddle 3 comprises one upwardly and two downwardly bent claws which may closely embrace the pivot pin 2 to prevent lateral oscillation or of which the downwardly bent claws do not fit the pin 2 closely so that lateral oscillation is permitted. In a further modification, Fig. 6, the bracket 4 has enlarged side portions 17 which make contact with flanges 18 on the carrier 1 when the carrier is raised. In another modification, Fig. 10, two springs 11 may be seated on the bracket 4 and the bracket may be raised together with the carrier 1 by means of contacting lip members 22 and 25. A modification of the spring means for retaining the top roller in position is shown in Fig. 12 and comprises two finger pieces 26 and 29 which may be pressed together to release the top roller shaft. The carrier may be locked in an operative position by the means described in Specification 735,036.
Patent GB-1444584-A (GB)
Title: Click-stop device
IPC: H01H21/50
Filed: 1973-06-22
Abstract: 1444584 Positive detents INTERNATIONAL STANDARD ELECTRIC CORP 22 June 1973 [23 June 1972] 29678/73 Heading F2E [Also in Division H1] In order to increase the number of angular locations without reduction in size of balls or recesses, a click-stop ball detent device (suitable for use in switches) is provided with a pair of circular indexing tracks 2a, 2b, mounted in fixed relationship to each other in spaced parallel planes, each track having a sequence of high points and recesses, the high points of one track being angularly aligned with the recesses of the other track, and at least one spring-biased ball 4 arranged to co-operate alternately with the tracks for defining successive indexing positions. As shown, the tracks are in horizontal surfaces of discs keyed to a shaft 3, and two diametrically-opposite balls 4, each urged inwards by an arched spring 5, and each accommodated in a slot 10 in a housing 1, may move up or down between successive angular steps of shaft 3. In Figs. 2a, 2b (not shown), the tracks are on the inner vertical surfaces of fixed annular members (2c, 2d) and the balls are carried in conical bores (11) of a rotary member (9b) secured to the shaft 3 to permit necessary to-and-fro axial snapping of the balls between successive steps of the shaft.
Patent GB-266449-A (GB)
Title: Improvements in or relating to hoisting apparatus
IPC: B66C7/00
Filed: 1925-11-24
Abstract: 266,449. Marks, E. C. R., (Motor Terminals Co.). Nov. 24, 1925. Guiding load.-An overhead travelling crane, particularly intended for handling removable vehicle bodies, supports load-sheaves 45 hanging in the bights of hoisting cables 44 at the four corners of a rectangle, and to facilitate positioning the bodies correctly upon the vehicles, the head-sheaves 41, 42 are adjustable horizontally on the traveller to skew the load without raising or lowering the sheaves 45. Transverse and longitudinal sections of the traveller are shown in Figs. 2 and 3. The hoisting motor 28 drives a shaft 25 carrying a winding drum 2 at each end, and two hoisting cables 44 are wound in opposite directions on each drum. Each cable 44 passes from the drum over sheaves 42, 45, 41 and is anchored to the traveller, as at 43. The four pairs of sheaves 41, 42 are mounted in frames 34 which rest on roller bearings 16 adjacent to the trolly wheels 15, and are adjustable longitudinally on the traveller to skew the load. The frames are moved by hand chain 52, shaft 47, and rack-and-pinion gearing arranged so that the pairs of frames at the opposite sides in Fig. 2 are moved in opposite directions.
Patent GB-1456695-A (GB)
Title: Extension equipment for percussive drilling
IPC: E21B17/00
Filed: 1974-07-04
Abstract: 1456695 Percussive drills SANDVIK AB 4 July 1974 [5 July 1973] 29767/74 Heading B4C An extension for a rotary percussive drill comprises a series of rods 10 for transmitting percussive forces located in tubes 11 which transmit rotary motion to the bit 12, the rods or tubes being provided with radially extending protrusions, e.g. 21 which guide the rods within the tubes and allow flushing medium such as air or water to pass through to the tool bit 12. A shoulder 28 with rubber or like ring 29 is provided on drill shank 14 to limit reciprocatory movement by abutment with a shoulder on the tube. The shank is splined to transmit rotary movement from the tubes 11. The protrusions may have indentions of noise suppressing material.
Patent GB-408037-A (GB)
Title: Improvements in machines for grinding pins, rollers, tubes and the like
IPC: B24B5/38
Filed: 1932-10-26
Abstract: 408,037. Centreless grinding machines. DUDGEON, H. A., 201, Warwick Road, Kenilworth, Warwickshire. Oct. 26, 1932, No. 29902. [Class 60.] In centreless grinding machines for grinding pins, rollers, tubes and the like, of the type in which the work is fed between the sides of revolving feeding and grinding wheels a, b, the spindle of one of the wheels is inclined in both elevation and plan relatively to the other, and in such manner that the rotational centres of the operating faces of the two wheels are at different heights. In the construction shown, the feed wheel spindle inclines downwardly and rearwardly towards the grinding wheel, the horizontal line of contact of the work-piece c, supported on the rest c<1>, with the feed wheel a being above the centre of the feed wheel and below the centre of the grinding wheel, so that if the wheels rotate in opposite senses they both tend to feed the work in the same direction. One or both of the heads carrying the wheels may be vertically adjustable, the construction shown being provided with a wedge block h below the feed wheel head for this purpose. A construction is also illustrated in which the feed wheel spindle inclines upwardly and rearwardly towards the grinding wheel.
Patent GB-1155854-A (GB)
Title: Improvements in or relating to Pneumatic Tube System Junctions
Inventor: TOWNSEND DEREK THOMAS
IPC: B65G51/24
Filed: 1966-07-04
Abstract: 1,155,854. Pneumatic tube conveyer systems. D. T. TOWNSEND. 4 July, 1966, No. 30025/66. Heading B8A. A pneumatic tube system junction comprises a tube section 2 which is pivotally connected to a fixed tube 17 and which is adapted to be moved mechanically first axially out of sealing engagement with one of a pair of fixed tubes 7, 7a then pivoted and finally moved axially into sealing engagement with the other tube. The tube section 2 is moved by a member 1 pivotally mounted about a fixed axis 3 and having a slot 12, engaging a pin 5 on the tube section, and a slot 8, adapted to receive a roller 9 on an arm 10 which is adapted to be rotatably oscillated by an electric motor 11. A spring 6 is provided to urge the section 2 towards the tubes 7, 7a and a roller 13 on the section 2 is adapted to engage in locating slots 14, 14a arranged adjacent the ends of the tubes 7, 7a. Limit switches 15, 15a are adapted to be actuated by an arm 16 on the section 2 to stop the motor 11 at the limits of movement of the section 2. The connection between the section 2 and the fixed tube 17 is such as to allow pivotal and axial movement of the section 2, Figs. 5, 5a (not shown). Reference has been directed by the Comptroller to Specification 1,121,598.
Patent GB-1328903-A (GB)
Title: Vehicle safety apparatus
IPC: B60R21/2346
Filed: 1971-06-28
Abstract: 1328903 Crash restraint devices EATON CORP 28 June 1971 [29 June 1970] 30101/71 Heading B7B A vehicular crash restraint device includes a confinement 30 to which an inflatable tubular framework 50 is attached, the framework being inflated on collision to expand the confinement. The framework members 56-64 are interconnected, and atmospheric air, or gas from a separate source, is drawn into the confinement through openings 90 controlled by flaps 92 during expansion. In other embodiments the framework may be provided by a plurality of separate tubular members (Fig. 3, not shown), gas may be introduced into the confinement via openings in the frame members (Fig. 6, not shown), and the frame members may be prestressed to give specific arrangements on inflation (Figs. 4, 5, not shown). A blow out patch 96 may be provided in the confinement
Patent GB-885862-A (GB)
Title: Improvements in or relating to electrical apparatus for producing an alternating voltage of substantially sinusoidal waveform when fed from a direct current source
IPC: H02M7/515
Filed: 1959-09-03
Abstract: 885,862. Converting. GENERAL ELECTRIC CO. Ltd., and HARRIS, E. S. Sept. 2, 1960 [Sept. 3, 1959], No. 30113/59. Class 38 (2). To provide a sinusoidal A.C. in aircraft a static rectangular wave generator fed from D.C. source 3 energizes a brushless motor 1 driving a brushless output alternator 7. The star-connected windings 2 of three-phase high-frequency squirrel-cage motor 1 are supplied with rectangular voltages from silicon PNPN rectifiers 4, with commutating condensers 5, controlled by voltages from low-power transistor oscillator 6 producing sinusoidal outputs with 120 degrees phase displacement. Field winding 8 of alternator 7 is fed by automatic voltage regulator 9 from the D.C. source 3. As the frequency and magnitude of the output voltage depend on alternator design motor 1 may be designed for low weight, and is conveniently energized at a frequency higher than that of the alternator output.
Patent GB-1468624-A (GB)
Title: Analogue to digital converter
IPC: H04N1/403
Filed: 1975-07-18
Abstract: 1468624 Bar code reader and decoder INTERNATIONAL BUSINESS MACHINES CORP 18 July 1975 [9 Aug 1974] 30185/75 Heading G4M [Also in Division H3] A circuit for producing a digital output from an analogue input signal, e.g. a bar code on a label comprises: a circuit for producing peak signals representing the peak values of the input signal in opposite directions; means for producing a threshold level dependent on the instantaneous values of the peak signals; means for producing a control signal dependent on a predetermined relationship between the instantaneous values of the input signal and a delayed, amplitude shifted, version of said input signal in which the threshold level is changed towards the instantaneous input signal level in dependence on the control signal. A signal derived from a bar code scanner for Universal Product Code symbols 211, Fig. 2, is fed to input 307, Fig. 3, of a circuit comprising two differential amplifiers Q31, Q32, Q33, Q34, Q35, for peak white and Q36, Q37, Q38, Q39, for peak black. When the input signal is rising towards peak white the voltage 221 across capacitor C21 follows it and subsequently decays through a time constant circuit connected across it. During the periods 213, 214, 215 when the input signal 211 exceeds the delayed, level shifted signal 212 a comparator Q41, Q42, Q43, Fig. 4, applies an enabling signal to the base of transistor Q47. If during this period the instantaneous input signal 211 is lower than the peak signal 221, e.g. during period 214, a second comparator Q45, Q46, Q48 applies an enabling signal to the emitter of Q47 so that Q47 turns on, feeding current to current mirror Q49, Q410. Q49 then provides a low resistance path through which capacitor C31  discharges rapidly until the peak value signal reaches the level of the input signal, 277. The circuits Q36 . .. Q39, C32 and Fig. 5 function in a similar way for peak black level.
Patent GB-755594-A (GB)
Title: Improvements in or relating to engine starter drives
IPC: F02N15/06
Filed: 1954-10-20
Abstract: 755.594. Turning-gear. SIMMS MOTOR UNITS, Ltd., DODDS, R. G., and ROBINSON, E. L. Oct. 20, 1954, No. 30273/54. Class 7(5) In an engine starter drive wherein engagement between a pinion 8 on a starter motor shaft 1 and a gear 9 of the engine to be started is controlled by means including a nut 3 threaded on a screwshaft 2, the nut 3 is restrained against rotation by a brake 43, until the pinion is at least partially in mesh with the engine gear 9, the pinion 8 being splined to the nut 3 so as to permit relative axial motion therebetween. Upon energizing a solenoid 21 the plunger 22 is moved downwardly and closes contacts 25, 29 thereby supplying current to the starter motor through a resistance which may take the form of a field winding, not shown; a trip 30 is simultaneously pressed against the shoulder 31 of a lever 32 to move the latter longitudinally on a pin 40 and cause a friction pad 48 on the brake 43 to bear against the surface 5 of the nut 3 on the screwshaft 2 which is formed on or attached to the shaft 1. The motor rotates slowly and due to the action of the brake 43 the nut 3 traverses the screwshaft 2 and through a spring 10 axially urges the pinion 8 with its barrel 7 along the shaft 1 toward the gear 9 until a shoulder 47 on the barrel 7 moves the brake 43 longitudinally and rotates the lever 32 to disengage the shoulder 31 from the trip 30 and cause closure of a further pair of contacts 24, 28, and withdrawal of the brake 43 due to a spring 33 lifting the lever 32; the resistance is short circuited upon closure of contacts 24, 28 whereupon full torque is applied to the shaft 1. The nut 3 abuts a stop 49 on the screwshaft when the pinion is in the meshed position and a spring-loaded detent 12 enters a depression 14 in the screwshaft to prevent further relative movement between the nut and screwshaft until the engine is selfoperative whereupon the detent is withdrawn by a combination of centrifugal force and the force due to pinion acceleration; when the parts have returned to the idle position the detent co-operates with another depression 13 to hold the nut in the position shown. In the event of tooth abutment the spring 10 is compressed until the nut reaches the stop 49 whereupon it rotates with the shaft 1 and turns the pinion until indexing occurs, the spring then expanding to force the pinion into complete mesh with the gear 9. Specifications 609,093 and 755,595 are referred to.
Patent GB-237796-A (GB)
Title: Improvements in liquid fuel injecting devices for internal combustion engines
IPC: F02M61/02
Filed: 1924-12-17
Abstract: 237,796. Bolinders Mekaniska Verkstads Aktiebolag, J. & C. G., Sjoman, C. F., and Pettersson, C. G. Dec. 17, 1924. Cylinders receiving liquid fuel.-In a fuelspraying device the angle of spreading of the fuel jet is automatically controlled in accordance with the load. Fuel is introduced from a conduit 8 to a chamber 7, when it passes through longitudinal grooves 6 and tangential grooves 5 in a spindle 2 to a whirl chamber x adjacent to the injection orifice 4. The spindle 2 is free to move vertically under the influence of fuel pressure on a shoulder 13, and is pressed downward by a spring 11. Under normal running conditions when the spreading of the jet is a maximum the spindle is seated in its lowermost position and all the fuel passes through the tangential grooves 5. As the load increases, a larger quantity of fuel is injected and the spindle is forced from its seat which thus reduces the spreading.
Patent GB-879650-A (GB)
Title: Improvements in or relating to circuits for controlling the resonance frequency of an oscillatory circuit
IPC: H03C3/36
Filed: 1957-09-27
Abstract: 879,650. Reactance transistor circuits. PHILIPS ELECTRICAL INDUSTRIES Ltd. Sept. 27, 1957 [Oct. 2, 1956; May 2, 1957], No. 30423/57. Class 40(5) An oscillator 1 is frequency modulated or stabilized in frequency by the series connection of a capacitor 4 and the collector 1 base path of a transistor 5 across the frequency determining circuit 1 of the oscillator, the collector/base path acting as a rectifier so that the transistor produces its own collector operating voltage, and the control voltage or modulation being applied at terminals 6 to the emitter/base circuit. The collector alternating current is therefore in phase quadrature with the oscillatory voltage applied to the capacitor 4. In modifications (1) a radiation source, e.g. lamp, provides the modulation or control the emitter being earthed, or (2) the modulation or control is applied across an impedance in the base circuit, the emitter being earthed or (3) a special grooved transistor as described in Specification 879,649 (Fig. 5) may be used so that for collector voltage above a predetermined value the collector current is cut off, so reducing damping of the oscillatory circuit.
Patent GB-171996-A (GB)
Title: Improvements in and relating to aluminium alloys
IPC: C22C21/02
Filed: 1921-11-15
Abstract: 171,996. Aluminum Co. of America, (Assignees of Edwards, J. D., Frary, F. C., and Churchill, H. van A.). Nov. 27, 1920, [Convention date]. Alloys.-Sodium or potassium is added to aluminium alloys containing substantial proportions of silicon, the alloys being cast or caused to solidify while sufficient alkali metal remains to affect the structure. An alloy of aluminium with 5-15 per cent of silicon may be made and about 0.1 per cent of sodium or potassium, or about 0.05 per cent of each, added thereto. The iron content should preferably not exceed 0.6 per cent, but may reach 1.5 per cent. The alkali metal may be added as an alloy with another metal, such as for example 98 per cent of zinc with 2 per cent of sodium, in which case less alkali metal is required. Copper or zinc or both may also be added to the alloys. The alloys should preferably be cast quickly after the pouring temperature has been reached. Specifications 171,997 and 173,746 are referred to. The Specification as open to inspection under Sect. 91 (3) (a) refers also to the use of cadmium and bismuth to produce the same effect as the alkali metal. This subject-matter does not appear in the Specification as accepted.
Patent GB-1119226-A (GB)
Title: Crimping apparatus
IPC: D02G1/12
Filed: 1965-07-19
Abstract: Apparatus for crimping yarns, tows, or fabrics, and comprising a pair of counter rotating rolls forming a nip arranged to force articles to be crimped between the rolls, has external heat transfer means arranged to add or remove heat from at least one of the rolls so as to combat non-linearity in the nip.  In one embodiment a hollow feed roll of a stuffer box has a liquid circulated through the interior of the roll, a thermocouple to measure the interior temperature of the roll, an arcuate electric radiant heater to heat the outside of the roll, and a pyrometer or thermocouple to measure the exterior roll temperature.  The interior and exterior of the roll are kept automatically at the same temperature or at the same difference in temperature in dependence on the temperature measurements by adjusting the radiant heater, or the temperature of, or the rate of travel of, the liquid passing through the roll interior.  In a modification where the heat lost from the roll depends on the rate of travel of the material through the nip between a pair of such rolls, the thermocouples are replaced by a tachometer which varies the amount of heat applied by the radiant heater in accordance with the roll speed.  In another embodiment the exterior of the roll is cooled by an air stream, the air compressor being automatically controlled by either the difference in readings between exterior and interior thermocouples or resistance thermometers, or by a tachometer.
Patent GB-190332-A (GB)
Title: Improvements relating to back screens for motor vehicles
IPC: B60J1/00
Filed: 1921-11-16
Abstract: 190,332. Auster, Ltd., and Auster, A. C. Nov. 16, 1921. Windscreens.-Relates to windscreens for the rear seats of motor and like vehicles of the type which are supported by means of a pair of horizontally-extending two-part folding arms 1, 1<1> arranged on the back of the front seats so that the screen can be adjusted towards or away from the occupants, and in which the screen is prevented from falling downwards under its own weight when brought to the forward position with the supporting-arms in alignment. The rear jointed member 1<1> of the folding arm at each side of the vehicle consists of two relativelyrotatable but non-slidable parts 9, 10, the forward part 9 being hinged to the front jointed member 1, while the rear part 10 is cranked upwardly at 12 to form a vertical post on which the side standard 13 of the screen 6 is swivelly mounted. The rear end of the part 9 is preferably split longitudinally at 17, Fig. 2, and the branches adapted to be pressed apart by a screwpin 18 to expand them into frictional engagement with the part 10. The screw-pin 18 passes through a semi-circumferential slot 19 in the part 10, thus preventing relative axial displacement of the two parts 9, 10, but allowing the part 10 to rotate on the part 9 against the clamping friction when the screen is brought to its forward position and then folded down. The cranked portion 12 of the member 1<1> has a shoulder 15 abutting against the lower end of the standard 13 and is provided with an annular recess 16 engaged by a screw 14 passing through the standard so as to prevent vertical displacement of the screen 6. Specifications 2898/09 and 112,564, [Class 65 (ii), Kinges &c,], are referred to.
Patent GB-173386-A (GB)
Title: Improvements in or relating to apparatus suitable for absorbing shock
IPC: B61G9/04
Filed: 1920-10-28
Abstract: 173,386. Pettigrew, J., and Monarch Door Controller Co., Ltd. Oct. 28, 1920. Buffers.-The spring n, associated with the anchoring bolt m connecting together the two rocking members a<1>, b<1> of apparatus such as is described in Specification 137,885, is arranged to act against the adjacent member a<1> through means such as a pair of links p<1> which provide a more or less flexible connection. The links p<1> are jointed to the trunnions e<1> of the trunnion block e to which the plates of the member a<1> are journaled, and to the trunnions r<1> of a block r mounted on the bolt m against which block the spring bears through a cup-shaped plate s. The hole through the block e or through blocks e, f may be of such diameter as to leave a clearance space around the bolt m.