baber/WOPTO huggingface dataset:
Patent GB-621616-A (GB)
Title: Improved drill-holding arrangement for dental and other purposes
IPC: A61C1/14
Filed: 1946-01-21
Abstract: 621,616. Dental drills. PESTY, R. Jan. 21, 1946, Nos. 2029, 2030 and 2031. Convention dates, Oct. 21, 1942, March 3, 1943, and July 26, 1943. [Class 81 (ii)] [Also in Group XXII] In a drill holder, particularly for dental purposes, the drill head is clamped between chuck jaws comprised by the short arms of levers, and the long arms of the levers are stressed by cam ways connected to the rotatable driving member which is.slidably mounted in the housing. In Fig. 3, two levers 16 are pivoted at 22 in a sleeve 15 to grip the drill shank 20 when the driving shaft 19 is moved downwardly, the toothed cam way 18 connected thereto forcing apart the shanks 17 of the levers. A flexible articulation 37 connects the driving shaft to the flexible transmission shaft 26. In a modification the levers are mounted on separate pivots, and the cam is not toothed. In a third form, the cam is pivoted at its top in a fork in the driving shaft whereby automatic centering of the tool is attained.
Patent GB-543697-A (GB)
Title: Improvements in or relating to centrifugal electric switches
IPC: H01H35/10
Filed: 1941-02-14
Abstract: 543,697. Centrifugal switches. WESTING- HOUSE ELECTRIC INTERNATIONAL CO. Feb. 14, 1941, No. 2031. Convention date, Feb. 16, 1940. [Class 38 (v)] A centrifugal switch adapted particularly for controlling the starting winding of a single phase induction motor comprises a stationary part bearing contacts biased apart by springs and a rotating part normally bearing against the springs to keep the contacts closed, but being withdrawn by speed-responsive means at a given speed to allow the contacts to open. The Figure shows the rotating part of such a switch. the member 25 being made of insulating material and the face of the disc bearing against the contact springs. The part 20 is secured to the shaft, and on rotation, according to the invention, weighted bars 29, restrained by springs 31, tend to swing outwards along inclined slots 24 in the part 20 and longtitudinal slots 28 in the lugs 27 on the part 25, to effect an axial movement of the disc 25 so that the contacts on the stationary part may open. In a modification the part 25 is connected to the fixed part 20 by linkage. A snap action or other modified movement may be obtained by shaping the slots suitably.
Patent GB-343282-A (GB)
Title: Improvements in and relating to electrical conductive varnishes
Filed: 1930-01-21
Abstract: An electrically conductive varnish consists of a varnish which is itself insulating, a conductive powder such as carbon or metal powder and lithopone.  In an example, 54 per cent of varnish, 37,8 per cent of lithopone, and 8,2 per cent of soot are mixed and diluted, to the desired consistency.
Patent GB-142183-A (GB)
Title: Improvements in or relating to advertising and displaying apparatus or toys
IPC: G09F11/26
Filed: 1919-01-28
Abstract: 142,183. Cartwright, P. Jan. 28, 1919. Reel and endless-web apparatus; changing apparatus.-An advertising or displaying apparatus, sign, show card, calendar, or a toy comprises strips carrying parts of pictures &c. interlaced so that complete pictures are formed which can be changed by simultaneously moving the strips. Fig. 2 shows two strips 5, 6 which reveal, at an opening 2 in a casing 1, four quarters forming a representation of a complete flag. Fig. 3 shows the back view of a modified form in which the pairs of ends of the strips 5, 6 are brought to move parallel to one another and are worked through slots 15 in the casing 1. In a further modification, Fig. 5, interlaced strips 30 are mounted on large fixed and small loose wheels 32, 33 on vertical and horizontal shafts 20, 17, 21 geared together and driven intermittently from a pulley 29 through ratchet mechanism 26, 25. Pins 35 on the wheels 32, 33 engage registering holes 34 in the strips 30.
Patent GB-563881-A (GB)
Title: A warping or beaming machine
IPC: D02H3/00
Filed: 1942-07-24
Abstract: 563,881. Warping and beaming yarns. LAMBACH, F. July 24, 1942, No. 2172/44. Convention date, Nov. 21, 1941. Divided out of 563,856. Drawings to Specification. [Class 142 (iv)] The reed of a warping or beaming machine is lifted by automatic control means during the building-up of the winding upon the beam in such manner that the warp remain in a substantially plane surface so that the tension in the yarn remains substantially constant. Guiding means additional to the reed are provided and the guiding means and reed are lifted simultaneously as the winding builds up. The reed, which is trapezoidal and is adjustable manually, both horizontally and vertically to obtain a correct initial setting, is controlled by a pressure roll urged against the winding upon the beam by a loaded swingable support as described in Specification 563,856. Specifications 563,855 and 563,880 also are referred to.
Patent GB-246522-A (GB)
Title: Improvements in sausage forming machines
IPC: A22C11/10
Filed: 1926-01-26
Abstract: 246,522. Kruse, F. Jan. 26, 1925, [Convention date]. Sausages.-A machine for twisting and crimping sausages comprises a housing 16, an inlet tube or guide 22 for the filled casing 31, and a rotor 45 carrying twisting and crimping mechanisms which receive the casing 31 and operate on it during its movement towards the discharge shoot 32 which is positioned in the opening 33. The casing 31 is assisted in its passage through the guide 22 by rotary intergeared members 23, 26 which consist of bars 23<1> secured between discs, the members 23, 26 projecting slightly through apertures in the guide 22. The twisting and crimping units A are secured at intervals to the rotor 45 and each consist of elastic belts 54 trained around rollers 49, 52, 53, 55, the rollers 49 being corrugated and mounted on shafts 48 which act as pivots for arms 51 which carry the other rollers. The rollers 49 are each in two sections divided by a housing 50 which contains interconnecting gearing for the opposing sets of rollers 49, and each unit A is therefore provided with two pairs of belts 54. The rollers 49 are driven from a stationary toothed wheel 62, Fig. 4, through gearing 61, 59 and the arms 51 are moved towards or away from each other by a toothed rack 66 which is reciprocated by the engagement of a roller 65 with a stationary cam groove 64, the rack engaging with a toothed segment 67 on one of the arms 51 which is also meshed with a segment on the other arm. The rollers 55 are spring-actuated to control the belttension. The crimping-means comprise triangular bifurcated members 68, preferably of celluloid, pivoted at 69 to the arms 51 and connected together by a pin 71 which passes through slots 70 in the members 68 and also through a slot 72 in a stationary guide 73. In operation, the casing 31 issuing from the guide 22 is positioned between the belts 54 and the members 68 which then close to engage it. The crimping-members 68 hold the ends of each sausage whilst the belts 54 effect the twisting which is continued until the belts open to release the casing 31 immediately prior to discharge. The members 23, 26 feed the casing into the machine faster than the speed of rotation of the members A, the casing being thus allowed a suitable. amount of slack. The members 23, 26 are driven by a two speed mechanism, each speed corresponding with a predetermined length of sausage link.
Patent GB-1461766-A (GB)
Title: Fuel control systems for ic engines
IPC: F02D41/34
Filed: 1973-01-16
Abstract: 1461766 Automatic control of fuel injection in I C engines LUCAS ELECTRICAL Ltd 9 Jan 1974 [16 Jan 1973] 2239/73 Heading G3N The quantity of fuel injected into an engine is controlled in accordance with the air mass flow into the induction manifold which has been measured during a previous time period using a system employing digital techniques. In the system shown, the injectors are divided into two groups and are controlled by signals from bi-stables 21, 22 respectively. The induction air mass flow is measured by known means 10 to obtain an analogue signal which controls the voltage controlled oscillator 12 to build up a count proportional to the air mass flow in counter 13 for each half engine cycle determined by contact breaker 14, 24. At each operation of the contact breaker the count in 13 is shifted to the memory counter 15, 16 respectively and counter 13 reset after a delay. After a delay imposed by delay 23 bi-stable 21 is set to gate clockpulses into counter 15 to reduce the count to zero when the bi-stable is reset. The set period of the bi-stable provides the injection period which is thus proportional to  the mass flow divided by engine speed. The bi-stable 22 and counter 16 are similarly operative for the other groups of injectors under the control of contact 24. In a modification a bi-stable circuit, counter and circuit breaker contact are provided for the individual injectors of an engine, Fig. 3 (not shown).
Patent GB-1167276-A (GB)
Title: Air Humidifier
IPC: F24F6/04
Filed: 1968-01-16
Abstract: 1,167,276. Air humidifier. PHILIPS' GLOEILAMPENFABRIEKEN N.V. 16 Jan., 1968 [19 Jan., 1967], No. 2287/68. Heading. B1R.. An air humidifier comprises a porous mat 1 of synthetic material which is continuously wetted by water and traversed by the air to be humidified, the mat being clamped at its upper end between plates 3 and 5 which together form a gutter to which water is continuously supplied. The plates 3 and 5 are releasably clamped together and the clamping pressure is such that the pores of the mat between the extensions 4 and 6 of plates 3 and 5 are not closed and even distribution of water over the entire cross-section of the mat is attained. The plate 5 has overflow openings 10 (not shown) and the unit may be suspended in the humidifier by means of slots 9 in extensions 8 at the ends of the plate 5.
Patent GB-736668-A (GB)
Title: Improvements in or relating to cams for actuating the valves of internal combustion engines
Inventor: THORN JAMES DOUGLAS
IPC: F16H53/02
Filed: 1953-08-08
Abstract: 736,668. Valve gear. RUSTON & HORNSBY, Ltd. Jan. 11, 1955 [Aug. 8, 1953 ; Dec. 11, 1953], Nos. 2298/54 and 7153/55. Divided out of and addition to 736,582. Class 7(6). The valve-actuating cam described in the parent Specification, which has a lift curve built up of two sine or cosine waves of which the ratio of the amplitude of the wave of longer wavelength to that of the wave of shorter wavelength is less than 3 to 1 and which are superimposed so that the point of maximum valve lift is a point at which the waves are in opposite phase at maximum amplitude, is further characterized in that the ratio of the longer wavelength to the shorter wavelength is not greater than 9 to 1 and is not greater than the square root of the ratio between the larger and smaller amplitudes. The lift curve is represented generally by the equation E=A cos BF+C cos DF where 3C>A, 9B>D>B and D/B # A/C.
Patent GB-1147928-A (GB)
Title: Improvements in or relating to a writing head producing a jet of ink
IPC: H04N1/034
Filed: 1968-01-16
Abstract: 1147928 Recording-apparatus. S A PAILLARD 16 Jan 1968 [13 Feb 1967] 2334/68 Index B6P 9A6 A writing head comprising a body 1 carrying a tube 9 constituting a nozzle for ink forming a jet which can be deflected by electrodes 24, 24', 25 and 25' and comprising a disc shaped partition 11 perpendicular to the axis of the jet and located between the nozzle and the electrodes with an opening 12 coaxial with the jet is characterized by providing a sharp edge along the periphery of the opening 12 with the surfaces of the partition 11 leading to the sharp edge polished to prevent the deposit of ink droplets along or near the edge. The sharp edge of the opening 12 merges into the flat surface of the partition 11 through an annular convex surface 11a and a radial groove 29 extends downwardly to guide any droplets that settle on the partition 11 to an output port opening into a tube 28. As shown, the body 1 is made of metal and slidably supports an insulating member 3 moulded to include a partition 5 with air holes 6 and a coaxial member 7 carrying the tube 9 which is fed with conductive ink through a flexible pipe 10 and receives voltage either through the ink or by a metal lead, which may be inserted through the pipe 10. The electrodes are shown constructed and supported as in Specification 1147927 the insulating rings 21, 22 being supported by four projections 13, 14, 15, 16 of the metal body 1 threaded internally to receive a metal member 18 adapted to clamp a metal securing lug 20 between a metal ring 19 and the ring 21. The electrodes and tube 9 are effectively screened from static charges which may collect on the insulating parts and the metal parts 1, 20 and 18 are subjected to the same voltage as a support carrying the surface to be written on by the jet.
Patent GB-1524042-A (GB)
Title: Method and apparatus for inspecting liquids in transparent containers
IPC: G01N33/00
Filed: 1975-08-19
Abstract: 1524042 Inspecting a liquid filled container for particles SCHERICO Ltd 19 Aug 1975 02405/78 Divided out of 1524041 Heading G1A The description is the same as for Specification 1524041 but the claims differ in that the image of the liquid-filled container is monitored at a plurality of planes therein. This is achieved by fibre optic bundles 31 stepped as at X, Y and Z.
Patent GB-1373995-A (GB)
Title: Methods of and apparatus for optical detection
IPC: G01S17/04
Filed: 1972-01-18
Abstract: 1373995 Optical detector COMETA SA 18 Jan 1972 [29 Jan 1971] 2436/72 Heading G1A In an optical detector in which a pulse generator supplies a luminescent diode 1 arranged to direct its beam pulses towards a reflex reflector 11, the reflected radiation is received by a photo transistor 12 whose output pulses are fed with synchronized reference pulses of the same frequency but shorter duration derived from the pulse generator to a comparator 24 which has an output only when a reference pulse occurs entirely within the photo transistor output pulses to eliminate the effect of any spurious responses of the photo transistor. A multi-vibrator 2 supplies a luminescent diode 1 with pulses of a predetermined duration by means of a polarity inverter 3, a circuit 4 transforming rectangular pulses into sawtooth pulses of a precise duration, a shaping circuit 5 forming rectangular pulses again, a polarity inverter 6 and an amplifier 7 with an auxillary delay device 8 which avoids the effects of transistory excess voltages. The pulses formed by the photo transistor 12 when there is no obstruction in the beam path are supplied to a pulse transformer 13 from where they pass via a double acting clipping circuit 15 to a comparator 14. The comparator 24 also receives a reference pulse train from the multi-vibrator 2 by an inverter 19, a further sawtooth converter 20 providing a shorter duration than the sawtooth converter 4, a shaping circuit 21, a "subtractor" 22 which provides a pulse whose duration corresponds to the difference between the duration of the two input pulses, and an inverter 23. The comparator comprises two NAND type controls and two NAND type memories which only allow an output when the reference pulse 23 takes place within the pulses from circuits 15 or 18. The comparator's output is used to drive a reed relay 26 which then actuate a lamp, a counter or a further logic circuit. A circuit example, Fig. 2 (not shown), of the amplifier with the auxiliary delay system is disclosed.
Patent GB-232707-A (GB)
Title: Improvements in and relating to motor cycles
IPC: B62K11/08
Filed: 1924-01-30
Abstract: 232,707. Dehn, F. B., (Aldendorff, F.). Jan. 30, 1924. Drawings to Specification. Luggage and like holders.-In a motor-cycle with hollow, substantially closed, frame enclosing the engine and accessory parts, access to the engine is obtained through openings beneath the saddle which are closed by hollow covers forming receptacles for tools &c.
Patent GB-489558-A (GB)
Title: Arrangement for automatically controlling a sequence of events
IPC: G05B19/06
Filed: 1937-01-28
Abstract: 489,558. Electric signalling and remote control systems; resistances. NEGRETTI, H. N., NEGRETTI, P. E., and LUDWICK, W. Jan. 28, 1937, No. 2559. [Class 40 (i)] [Also in Group XXXVI] Control is exerted in accordance with the shape of a chart or cam, a resistance being tapped in accordance with the shape to upset the balance of a Wheatstone bridge, a further member being set to rebalance the bridge and to effect the desired control. The resistance B is tapped at E, by a contact moved by the edge of the continuously moving chart A, or by the continuously rotating cam S, Fig. 4. The resistance forms two arms of a Wheatstone bridge, the other arms being the two parts of the resistance Z, Fig. 3, which is tapped at X. When the contact E moves, the bridge is unbalanced and motor BM is started to drive contact X until balance is restored. To the carrier of contact X is attached the selector Y which is periodically moved up and down as indicated at K by a cam (not shown). The indicator N, which is making the record P of the remote condition, is engaged by the selector Y which may be stepped, as shown, or may have a straight edge normally at an angle to the chart. If the controlled unit is in a condition agreeing with the contour of the cam or chart the indicator N engages the centre portion of the selector Y, but if a change is to be made the selector Y is tilted so that mercury switches (not shown) are effective to initiate the required control. Suitable arrangements to indicate that the selector Y and indicator N have moved clear of each other are provided. The cam or chart is adjusted to allow for the time lag between the control of the resistance and of the remote unit.
Patent GB-1499723-A (GB)
Title: Storage device for a safety belt and inertia locking mechanism
IPC: B60R22/405
Filed: 1975-01-21
Abstract: 1499723 Inertia reel HANS KOLB KG 21 Jan 1975 [21 Jan 1974 (2) 23 Jan 1974 5 Feb 1974 29 Oct 1974 (2)] 2568/75 Heading A3V In an inertia reel, the tip of the pawl engaging the ratchet wheel, is spring-loaded.
Patent GB-260822-A (GB)
Title: Improvements in or relating to pocket or portable receptacles or containers for matches, vestas or the like
IPC: A24F27/12
Filed: 1926-01-29
Abstract: 260,822. Hodson, C. E. Jan. 29, 1926. Drawer and shell cases; partitioned cases; matches, cases specially designed for.-A pocket match receptacle in which a row or several separate rows of matches are accommodated and arranged in compartments to prevent the matches from falling sideways, comprises an envelope A of stiff paper formed by turning the lower end a<1> of a blank upwards and folding the side flaps a<3>, a<4> inwardly thereon. The whole is secured by a staple C which also serves to sub-divide the envelope into compartments. The remaining part a<2> of the blank forms the closing flap. The envelope may be used alone, but is intended for use generally as a filler for a metal casing B, Fig. 2. which slidably contains the envelope with the flap a<2> turned backwards. An igniting strip D is provided which is exposed through a slot in the front of the casing B. The head of the staple C bears against the upper edge of the slot to locate the envelope in the casing and affords a suitable grip for sliding the envelope relatively thereto. In a modification the flaps a<3>, a' are replaced by a surrounding band. In a further modification the envelope contains two laterally adjacent rows of matches arranged in echelon. The igniting band D may be fitted in the interior of the envelope so that the matches are ignited on withdrawal. Figs. 13 and 15 show modifications in the sectional form of the casing B, the top corners of which may be cut away as at b to facilitate the extraction of single matches from the envelope without exposing the remainder.
Patent GB-450321-A (GB)
Title: Improvements in or relating to locks
IPC: E05C1/16
Filed: 1935-01-26
Abstract: 450,321. Latches. LOCK LUBRICATING APPLIANCES (PATENTS), Ltd., and BEESLEY, R. P., 1A, Ashby Road, Brockley, London. Jan. 26, 1935, No. 2685. [Class 44] The outward return movement of a spring - pressed bolt of a latch or look is cushioned by means of an air cylinder having a plunger which tends to be projected by a spring. The plunger and cylinder may be provided in side portions of the bolt itself, the plunger being projected by the spring during the retraction of the bolt, and so engaging a flange on the casing during the return outward movement of the bolt. The air cylinder 13 may, as shown, be carried in a fixed casing part 8 with the plunger 12 projected by a spring 14 into engagement with the follower-engaged flange 9 of the latch bolt 6. A felt pad 15 soaked in oil is placed at the bottom of the cylinder. The head of the plunger may have a fibre insert to deaden the noise and similar fibre inserts may be provided in the follower arms or the follower itself may be made of compressed fibre. A weak spring may be used for the bolt and a separate spring for the handleoperated follower.
Patent GB-182836-A (GB)
Title: Improvements in or relating to sound recording or sound reproducing machines
IPC: G11B19/20
Filed: 1921-01-20
Abstract: 182,836. Plantation Rubber Manufacturing Co., Ltd., and Dessau, M. M. Jan. 20, 1921. India-rubber with projections etc.; cellular india - rubber. -Consists in a rubber mat for use on the turntable of a sound - recording or reproducing machine. in which the rubber is cellular or of interrupted formation, so as to produce air spaces which are in free communication around small separated supporting- members. The faces of the mat are alike. Each face may, as shown in Fig. 2, be formed with series of intersecting ridges a, b, the ridges of one series being more prominent than those of the other. Fig. 5 shows a modification in which studs d are provided on both sides of the mat. In the form shown in Fig. 8, two thin smooth layers e are united by pillars f which leave intercommunicating spaces filled with air at atmospheric pressure or inflated.
Patent GB-726687-A (GB)
Title: Improvements in and relating to sheet metal containers
IPC: B65D25/14
Filed: 1953-02-02
Abstract: 726,687. Portable containers. CARRICK & CO., Ltd., J. G., and CARRICK, G. C. Feb. 1, 1954 [Feb. 2, 1953], No. 2872/53. Drawings to Specification. Class 66. In a sheet metal container having a liner sheet of plastic material, e.g. polyethylene applied to its bottom and a tubular liner of the same material fitted in its cylindrical shell, the bottom is secured to the shell by means of a double seamed joint so that the foot of the tubular liner and the sheet applied to the bottom are embedded together in the same joint. The top may also have a liner sheet similarly embedded in the joint securing the top to the cylindrical shell. In the case of a drum provided with a lined spout the spout lining may have its lower edge embedded in the joint connecting the spout to the top of the drum.
Patent GB-1374318-A (GB)
Title: Production of pentaerythritol or a mixture of pentaerythritol  and a higher pentaerythritol and a metal formate
IPC: C07C31/24
Filed: 1972-01-21
Abstract: 1374318 Pentaerythritol and/or dipentaerythritol VYSKUMNY USTAV PRE PETROCHEMIU 21 Jan 1972 [21 Jan 1971] 2966/72 Heading C2C A method of producing pentaerythritol or a mixture of pentaerythritol and a higher pentaerythritol, and an alkali or alkaline earth metal formate comprises (a) condensing formaldehyde with acetaldehyde in the presence of a solution of an alkali or alkaline earth metal compound as condensation agent to form a reaction mixture containing pentaerythritol or a mixture of pentaerythritol and a higher pentaerythritol, and an alkali or alkaline earth metal formate and unreacted condensation agent, (b) neutralizing the unreacted condensation agent in the mixture, (c) adding to the neutralized reaction mixture material comprising pentaerythritol or a mixture of pentaerythritol and a higher pentaerythritol, and a metal formate similar to that formed in the condensation reaction, and (d) concentrating the resulting mixture and separapentaerythritol or a mixture of pentaerythritol and a higher p entaerythritol, and the metal formate from the reaction mixture.