baber/WOPTO huggingface dataset:
Patent GB-156333-A (GB)
Title: Improvements in hornless talking machines
Filed: 1919-10-07
Abstract: 156,333. Marks, E. C. R., (Newcombe, W. H.). Oct. 7, 1919. Sound magnifying and directing appliances. - The internal horn of a talking machine, shown in elevation in Fig. 1 and in plan in Fig. 3, is rectangular in cross-section and comprises a flat base 1 gradually increasing in width towards the horn mouth, two vertical sides 2, 3 increasing in height towards the mouth, and a curved or sloping upper wall 4. The neck tube 7 is vertical and an oblique reflector 8 is placed in the corner opposite the neck. The vertical side walls 2, 3 may be concave outwards, instead of plane.
Patent GB-325857-A (GB)
Title: Improvements in the manufacture and production of valuable artificial threads and webs of the same
IPC: D01F2/28
Filed: 1928-08-27
Abstract: 325,857. Johnson, J. Y., (I. G. Farben. industrie Akt.-Ges.). Aug. 27, 1928. Right to Patent relinquished. Cellulose esters and ethers, processes for making filaments from; apparatus for making filaments.-Cellulose ester and ether threads of increased tensile strength due to a better orientation of the particles as disclosed by X-ray analysis, are obtained in the air-spinning process by extruding the cellulose ester or ether solution through a layer of a liquid medium consisting of an organic solvent for the cellulose ester or ether with a coagulating liquid dissolved therein, the composition of the liquid medium being such that the liquid filaments are prevented from dissolution in the solvent, while on the other hand they are at the highest superficially only slightly coagulated. The orientation of the particles is assisted by the use of spinning nozzles the straight capillary bore of which is many times greater than its diameter, for example, 10 or more times. The results may be still further improved by stretching the threads during the spinning operation, for example, by passing the threads at an angle round two or more rods or by increasing the winding speed. After passage through the layer of liquid medium, the plastic filaments are passed through a sufficient distance in the air to effect the necessary hardening. The spinning nozzles are preferably of gold, gold alloys, monel metal, chromium-nickel-iron alloys, or aluminium bronzes. In examples, acetone solutions of cellulose acetate are spun through long nozzles into baths consisting of 40 per cent acetic acid with an addition of acetone, or of a mixture of ligroin, acetic acid, and acetone; an alcoholbenzene solution of the ethylcellulose is extruded into a bath consisting of ligroin, benzene, and alcohol. The use as coagulating baths for cellulose acetate threads, of 30-70 per cent aqueous acetone is referred to. According to the Provisional Specification, the several methods described above, for causing the desired orientation of the particles, may be employed independently.
Patent GB-434156-A (GB)
Title: Improvements in and relating to mechanism for converting rotary into reciprocating motion
IPC: F16H37/12
Filed: 1934-08-27
Abstract: 434,156. Converting rotary into reciprocating motion; actuating reciprocating pumps. LEONARD, R. E., 200, North Huntington Drive, Alhambra, California, U.S.A. Aug. 27, 1934, No. 24611. [Class 80 (i)] [See also Group XXVIII] The sucker of a deep well pump is reciprocated by a rope 29, Fig. 1, secured to a pulley 28 mounted on a shaft 2 oscillated by a segmental gear 1 driven by a pinion 3 on the driving shaft 19. Guide rings 10, 11 with curved connecting portions 15, 16 engage a roller 22 loose on the driving shaft and thus maintain the pinion 3 in mesh with the gear 1. The curved portions 15, 16 guide the ends 7, 8 of the gear 1 round the pinion 3 at the ends of the stroke. A shroud 17 on the gear engages a shroud 18 on the pinion to limit the depth of tooth engagement. The gear 1 is connected to the shaft 2 by a universal joint (not shown), and the rings 10, 11 are engaged by rollers 24, 25 on arms 26 pivoted to the frame 21 at 27. In the form shown in Fig. 6, a segmental gear 40 is mounted by means of a universal joint 41 on a horizontal shaft 42 carrying the rope pulley 67. The gear 40 is maintained in mesh with the driving pinion 52 by a segmental guide 48 engaging a loose roller 55 on the driving shaft 53, shrouds 47, 54 being provided to limit the depth of engagement. In the form shown in Fig. 8, the segmental gear 70 is slid to and fro along a squared part of the shaft 71 carrying the rope pulley 115, so as to pass round the driving pinion 83. The sliding of the gear 70 is effected by links 112, 113, 114 connected to the hub 74 of the gear and to a pair of vertical slides 100, 101 carrying rollers 102, 103 engaging cams 104, 105 driven by gearing from the motor shaft 87 which drives the pinion 83. a roller 94 mounted loosely behind the pinion 83 engages a cam 80 on the gear wheel 70 to facilitate reversal. In the form shown in Fig. 14, the driving pinion 121 is mounted on a slide 133 in a transverse groove 134 and is driven by a four-part flexible and extensible shaft 127, 128, 129, 130, the part 128 being squared to slide in 129, and the parts 128, 129 being pivoted to the parts 127, 130 respectively. The segmental gear wheel 122 is fixed on the shaft 123 carrying the rope pulley 124. A cam similar to 80, Fig. 8, is mounted on the gear 122 to engage the roller 149 behind the gear 121 to facilitate reversal. In a further form (not shown), the pinion 121 is made double to engage alternately two segmental racks of different radii on opposite sides of the wheel 122, each rack extending half way round the ends of the wheel 122. The slower movement of the wheel 122 is utilized during the pumping stroke and the faster movement during the return stroke.
Patent GB-481512-A (GB)
Title: Improvements in or relating to automatic firearms
IPC: F41A7/04
Filed: 1936-09-09
Abstract: 481,512. Automatic guns; press-button valves. BRONZAVIA SOC. ANON. Sept. 9, 1936, No. 24647. Convention date, Sept. 10, 1935. [Class 92 (ii)] [Also in Group XXIX] Relates to remotely-controlled pneumatic cocking appliances for automatic guns particularly those mounted on aircraft, and consists in so mounting the driving-head 2 on the pneumaticallyoperated piston-rod 3 that, after it has moved the cocking-handle 1 to cocked position, the driving head is automatically moved aside so as not to obstruct the return movement of the cocking handle, the spring or like means producing such aside movement being only effective when the pressure between the driving-head and the cocking-handle ceases. In the form shown, the head 2 is mounted for lateral rotation on the piston-rod 3 and is controlled by a torsion spring 6, one end of which carries a lever having a roller 9 which runs on cam rails 8 to stress the spring, the lateral movements of the head at each end of the stroke being further controlled by a pin 40 on the head which engages grooves 7<1> in a guide rod 7. The piston 4 is operated by compressed air admitted to the cylinder 25 by a pipe line 5 controlled by a press-button valve 12. This valve can occupy three positions. In the position shown, the cylinder is connected to the atmosphere through passage 16. In a partly depressed position of the valve, air pressure is applied through passages 14, 13 to the pipe 5, and, in the fully depressed position, pressure air in the cylinder is prematurely exhausted through a pipe 26 to allow a partial stroke of the piston to be arrested in safety position III by a pivoted catch 22. This catch is released and restored by projections 19 on the head 2. The piston is returned by air. compressed in the hollow piston-rod 3 during the cocking stroke. This air is preferably given an initial pressure by the action of valves 34, 36 prior to the application of pressure to the piston 4. The Specification as open to inspection under Sect. 91 also describes a modified press-button valve, Fig. 4 (Cancelled), in which the admission valve 51 is opened by a cross-member 59 when the button is pressed thereby admitting the pressure air to the interior of a bellows 55 from which the air passes through a passage 63 to the cocking apparatus. In the inoperative position shown, the apparatus is connected with the atmosphere through a valve 61 closed when the button is pressed. It is stated that the pressure balances out in the interior of the bellows to prevent reaction on the finger of the operator. This subject-matter does not appear in the Specification as accepted.
Patent GB-407269-A (GB)
Title: Improvements in crighton openers for opening and cleaning textile fibres
IPC: D01G9/00
Filed: 1933-09-06
Abstract: 407,269. Crighton openers. TENNANT, W. J., 111, Hatton Garden, London.-(Rieter & Co., Ltd., J. J. ; Klosterstrasse, Winterthur, Switzerland.) Sept. 6, 1933, No. 24748. [Class 120 (i).] In a Crighton opener the grid bars 1, Figs. 1 and 2, are adjustable and may be inclined relatively to the generating lines of the conical grid surface both in the direction of rotation of the beater and opposite thereto. The bars 1 are secured between upper and lower mountings 5, 7 by means of pins 4, 6 the upper ends being secured against rotation by angle members 2 engaging guides 3 while the mounting 7 is supported by balls 8 on a base 9 and may be rotated to vary the inclination of the bars 1 through a gear wheel 11 engaging teeth 10 thereon.
Patent GB-1181851-A (GB)
Title: Hydraulic Servo Control System
IPC: F15B13/16
Filed: 1967-05-30
Abstract: 1,181,851. Fluid-pressure servomotor systems. BELL AEROSPACE CORP. May 30, 1967 [June 6, 1966], No.24781/67. Heading G3P. In a duplex servo-control system for high inertia loads, a manual input at 59 causes rotation of floating lever 56 about pivot 62 which, in turn, causes rotation of lever 51 about pivot 52 to move duplex spool 41 to supply tandem servopistons 29, 29<SP>1</SP>. The latter position the load 35 and return the spool to its null position via lever 64, link 61, floating lever 56 and lever 51. The pressure difference across pistons 29, 29<SP>1</SP> is also applied across pistons 102, 102<SP>1</SP> which adjust the position of pivot 52 to counteract the input signal to compensate for the inertia of the load. The pistons 102, 102<SP>1</SP> may, be replaced by bellows. A flat spring 106 biases pistons 102, 102<SP>1</SP> to a central position.
Patent GB-755797-A (GB)
Title: Astable transistor circuits
IPC: H03K3/282
Filed: 1954-08-26
Abstract: 755,797. Transistor generating circuits. INTERNATIONAL BUSINESS MACHINES CORPORATION. Aug. 26, 1954 [Aug. 31, 1953], No. 24843/54. Class 40 (6). In a pulse generator circuit, the output of a bi-stable circuit is connected over a positive feedback path to the input and a delay is arranged between the output and input pulses. The delay may be due to the transition of a transistor from one state to the other or a delay line may be employed. A ring of point contact transistors 1, 2, 3, Fig. 1, is arranged with each collector c connected over a coupling resistor 22 to the base b of the next transistor and with a base resistor 20 to cause each to have two stable states, passing heavy current or little current respectively. The transistor in the ring, which has a state similar to that assumed by the preceding transistor, passes to the opposite state and in turn causes the succeeding transistor to change state. At the time 10, Fig. 2, transistors 1 and 2 are OFF and transistor 3 ON. The low potential of collector c of transistor 1 causes the base b of transistor 2 to fall so that transistor 2 passes to the conducting or ON state, time 12. The rise in collector potential carries the base of transistor 3 positive so that it passes to the OFF state, the reversal process continuing round the chain. The repetition rate may be varied by including a capacitor 26 or by the use of delay lines in place of resistors 22. Any odd number of stages may be used or an even number plus an inverter stage. Alternatively, an even number of stages may be connected back to the emitter of the first transistor, Fig. 5 (not shown). In a modification, Fig. 3, a delay line 28 is arranged between the collector c and base b of a single transistor. U.S.A. Specification 2,600,500 is referred to.
Patent GB-1166536-A (GB)
Title: Methods and Apparatus for Capacitatively Measuring Tobacco
IPC: G01N27/22
Filed: 1967-05-30
Abstract: 1,166,536. Measuring flow of tobacco, electrically. HAUNI-WERKE KÍRBER & CO. K.G. May 30, 1967 [July 11, 1966], No.24860/67. Heading G1N. [Also in Division G4] The quantity of tobacco passing through a measuring station is determined by measuring the capacitance of a capacitor the field of which passes through the whole cross-sectional area of the tobacco stream and measuring the capacitance of a capacitor the field of which passes through only a predetermined cross-sectional portion of the tobacco stream. The first measurement depends on the quantity of tobacco, its moisture content and its density, whereas the second measurement depends only on the moisture content and density. An analogue computer may divide the result of the first measurement by that of the second to give a measurement of the quantity of tobacco in the field of the second capacitor. Alternatively, several quantity indicators may be provided, each calibrated for tobacco of respective different moisture content and the second measurement is used to select the appropriate indicator for the first measurement. Additional measurements may be made on a second different predetermined cross-sectional area of the tobacco stream to obtain an error quantity based on all three measurements. The tobacco may be conveyed in a vibratory duct having an upstream portion comprising a measuring duct 7 of known cross-sectional area and overflow ducts 8, 9 each side and a downstream portion 22 merging with the measuring duct and the overflow ducts. Capacitor plates 18, 19 are disposed in the measuring duct 7 and capacitor plates 25, 26 are disposed in the downstream portion 22.
Patent GB-502355-A (GB)
Title: Improvements in or relating to interiorly-heated furnaces
IPC: F27B3/24
Filed: 1937-09-14
Abstract: 502,355. Rotary furnaces. DUFFIELD, F. L. Sept. 14, 1937, No. 24999. [Class 61 (ii)] An internally-heated rotary or semi-rotary furnace has built into the shell a number of longitudinally-extending watercooling pipes 17 connected at their ends to annular supply and exhaust headers 2. In the semirotary furnace shown the pipes are disposed equi-angularly around about 245 degrees of the periphery, the remaining portion, which contains the charging-opening 25, being uncooled. The pipes are of flattened form and are positioned between pairs of preformed blocks 22, the spaces between adjacent pipe and block assemblies being filled with rammed dolomite and tar 23. The blocks may be tapered to provide a key for the refractory material. Each header consists of a U-section annulus 4 secured loosely or resiliently by studs 7 to a fixed part of the furnace framework, and working within a composite annulus 3a 3b carried by the furnace. A fluid tight joint between the member 4 and the rings 3a is made by packing 11, and a lubricant may be supplied through apertures in grooves 14. Specification 474,408 is referred to.
Patent GB-630401-A (GB)
Title: Improvements in electric motor control mechanism for looms for weaving
IPC: D03D51/00
Filed: 1947-09-12
Abstract: 630,401. Controllers AINSWORTH, J. Sept. 12, 1947, No. 25001. [Class 38(iii)] An electric motor control mechanism for weaving looms comprises a unit incorporating a multipole switch operated by the loom setting on handle and a contactor, the operating coil of which is in series with one of the switch contacts to prevent re-energization of the contactor upon restoration of the supply after a faulty condition if the switch has not moved from the operative position. After closure of an isolating switch 6 operation of a push button G energizes a coil 10 to close contactor E<SP>1</SP> the coil circuit being maintained by contact 9 and the motor may then be started by movement of a handle C to operate a switch D. Failure of the supply de-energizes the coil 10 opening contactor E<SP>1</SP> and it is necessary to move the handle C to the off position to re-close contact 5 before the coil 10 can be re-energized. The motor may be stopped by a push button G<SP>1</SP>. Fuses and'overload relays are also provided. The unit A is attached to the loom frame B and the switch D operated by the handle C through a link system.
Patent GB-301980-A (GB)
Title: Improvement in electrical condenser units
IPC: H01G2/12
Filed: 1927-09-22
Abstract: 301,980. Dubilier Condenser Co. (1925), Ltd., (Dubilier, W.). Sept. 22, 1927. Condensers. - A condenser unit, which may serve as a spacing member or end piece for a condenser built up of one or more sections and to secure mechanical strength, high compression of the elements, and greater heat radiation, comprises a core of insulation and a metallic covering consisting of one or more, preferably transversely arranged with respect to one another, wrappings for the core. The core 1 comprises superposed sheets of mica which are first partly enclosed by a strip 2 of metal foil, the ends 5 of which are folded as in Fig. 5, and is then covered by a further strip at right angles to the first, the ends 7 of this strip covering the ends 5 of the first.
Patent GB-1167866-A (GB)
Title: System for the Discharge of a Curtain of Bulk Material into an Air Classifier.
IPC: B07B7/02
Filed: 1966-10-19
Abstract: 1,167,866. Pneumatic separation. BUHLER GEB. 19 Oct., 1966 [20 Oct., 1965], No. 25108/69. Divided out of 1167865. Heading B2H. Material to be classified falls through aperture 3 into container 2 and is therefrom discharged by vibrating plate 50 vibrated at 55 and pivoted at 57 and influenced resiliently at 58 so that the discharge of material from the plate is dependent upon the weight of material on the prate. The material is thus fed into channel 20, air entering at 22 so that the heavier material falls thro chute 21, and the lighter material rises into chamber 20, the air being discharged at 30 past valve 31 and the material falling into chute 41, the discharge being controlled by flaps 43 and 48 which are alternately opened and closed, their levers 95 and 96 being operated by the cam 93 of rotating disc 98 driven by motor 100. The wall 25 of channel 20 is pivoted at 26 to wall 27 pivoted at 70 to fixed wall 11, and its position, and inclination, is adjusted by handwheels 81 and 85 operating through arms 72, 71, the rod 83, and levers 77 and 78.
Patent GB-1337375-A (GB)
Title: Thread pull-off and wiping mechanism for sewing machines
IPC: D05B65/06
Filed: 1972-05-30
Abstract: 1337375 Thread pull off and wiper SINGER CO 30 May 1972 [4 June 1971] 25159/72 Heading DIG A sewing machine has a needle thread manipulating mechanism 50, 42 comprising thread engaging means shiftably supported for movement between two extreme positions and spring urged towards the first position, a linkage 63, 60, 71 being operable, by a rotary cam 95 to move the means to the second position, releasable latch means 76 being provided to hold the linkage out of engagement with the cam. The thread engaging means comprises a thread pull off element 40 having a loop 44 embracing, in its first position, the normal run of thread from take up 29 and guide 33 to needle 13. Element 40 is mounted on a lever 42 connected through linkage 67, 66, 63, 60 to a lever 51 pivoted to the presser bar bushing 14 and presenting a thread wiping element 55 shown in the first position. The drive-link 71 pivoted at 62 to the linkage, but held back against the action of a spring 90 by the latch 76 constituted by a solenoid plunger, presents a projection 72 which, when the solenoid is energised to withdraw the latch during a final stitch, is urged by the spring 90 to engage the cam 95 adjustably secured to the take up disc 27 to be raised against spring action thereby to actuate the linkage, when elements 44, 55 move to the second position (Fig. 4 not shown) where 44 draws off thread and member 55 is disposed on the other side of the needle path. Release of the link 71 by the passage of cam 95 allows the spring to lower the link 71 when it rocks anticlockwise to its previous latched position by the engagement of the now released latch 76 with a camming edge 74 of the link.
Patent GB-364617-A (GB)
Title: Improvements in or relating to photographic cameras and picture projecting and viewing apparatus
IPC: G03B41/06
Filed: 1930-08-23
Abstract: 364,617. Optical systems. GRAMOPHONE CO., Ltd., Hayes, Middlesex, TEDHAM, W. F., 267, Woolwich Road, Abbey Wood, London, and MANIFOLD, M. BOWMAN-, Heathcot, Worplesdon Station, Surrey. Aug. 23, 1930, No. 25246. Addition to 340,935. [Class 97 (i).] In optical systems according to the parent Specification, comprising elements for producing an evenly focused image in cameras or projectors &c. wherein the light passes obliquely from or to the film or image, the elements are all in the form of lenses. The elements may comprise lens parts C D H G comprising two glasses of approximately the same refractive index but of different dispersions, and the central incident ray may be normal to the surface C D so that it is refracted only at the surface G H. Refraction may alternatively occur at the surface C D only, or at more than one surface. Specification 336,284, [Class 97 (i), Optical systems &c.], is referred to.
Patent GB-924949-A (GB)
Title: Improvements in and relating to undergarments
IPC: A41B9/06
Filed: 1961-07-12
Abstract: 924,949. Vests. WEDIN A.B. July 12, 1961 [July 12, 1960], No. 25246/61. Class 141. A ventilating vest is made from cotton cords 5 extending longitudinally and held together by spacer threads 7 of " Terylene " (Registered Trade Mark) or other plastic material. The cords 5 end in a binding 4 at the neck opening. In another embodiment (Figs. and 4, not shown) the binding 4 underlies the cords at the neck opening and an underlying waist strip is provided.
Patent GB-217876-A (GB)
Title: Process for the production of galvanic coatings
IPC: C25D5/34
Filed: 1923-10-10
Abstract: 217,876. Kirschner, F., and Hess, J. June 19, 1923, [Convention date]. Metals and alloys, obtaining and depositing; electrodes; preparing surfaces; treatment after electrolysis. - Metal articles are electroplated with an easily-fusible metal such as tin or a tin alloy, which is then fused and cooled in water or an aqueous solution producing a smooth highlypolished surface whereon nickel is deposited electrolytically without any previous special treatment. Weak acid solutions, or solutions of ammonium chloride with or without metallic salts may be used as fluxes. The articles after cooling of the fused layer may be rapidly dipped in weak sulphuric acid to enable a particularly highly-polished nickel coating to be obtained. The articles may be electroplated with silver or with copper alloys such as brass or pinckbeck.