baber/WOPTO huggingface dataset:
Patent GB-179131-A (GB)
Title: Improvements in or relating to change-speed gears
IPC: F16H61/02
Filed: 1921-08-16
Abstract: 179,131. GrÚgoire, P. J. E. April 25, 1921, [Convention date]. Void [Published under Sect. 91 of the Act]. Variable - speed epicyclic gearing suitable for motor vehicles comprises overlapping trains, or a single train, controlled by two centrallya r ran g e d friction clutches, and detents, in turn controlled through cam-discs and a single pedal lever. This pedal 20, Fig. 2, when depressed through n<0> and released yields a " stepup " in the speed gear, and when depressed through 2n<0> and released yields a " step-down." When depressed short of the n<0>, the drive is disconnected. A driving-shaft 1, Fig. 1, carries a disc 68 with through rods 70, which ensure that a second disc 69 and sleeve 2 will turn with the shaft 1. A disc or cone clutch 68<1> is arranged between the disc 68 and a casing 60 which forms a loose carrier frame for planetary spindles 62<1>. Between the disc 69 and a disc 67 fast to a sungear 61 is a second like clutch 69<1>. The spindles 62<1> carry gears 62, 63 meshing respectively with the gear 61 and with a gear 64 secured to a driven shaft 64<1>. A spring 71 normally holds both clutches in engagement, yielding a solid high-speed drive. One reduced speed is effected by releasing the clutch 68<1> and holding the casing 60 by a detent wheel 48. Another reduced speed is obtained by releasing the other clutch only and holding a detent wheel 47. Still another speed may be obtained by holding the detent wheel 49 of an additional gear pair 65, 66. To operate the clutches, the shaft 1 and sleeve 2 are moved longitudinally and this is done through collars 3, 4 by forks 5, 6, Fig. 3, which communicate through concentric shafts 7, 8 with cranks 9, 10 which are oppositely directed and each of which carries a through pin 11 or 12 which is adapted to engage both a releasing cam 17 and a locking cam 18. The releasing cam 17, which is secured directly to the pedal 20 has two notches in which the pins 11, 12 both lie when both clutches are engaged, as shown in Fig. 5. Forward movement of the pedal 20 thrusts the collars 3, 4 apart and disconnects both clutches. The locking cam 18 is formed with notches 36, 35, 34, Fig. 8, at an angular distance of n<0> apart, and a notch 37 at a further angular distance of 3n<0>. The connection between the pedal 20 and cam 18 comprises pawls 23, 24, Fig. 2, adapted to engage a ratchet 25 secured to the cam and supported on pins 21, 22, Fig. 1, carried by the cam 17. The detent wheels 47, 49 are adapted to be stationed by pins 44, 46, Fig. 4, carried by levers 41, 43 which lie against an annulus 39, Fig. 1, secured to the cam 18. As a notch 40 in the annulus 39 comes into register with one of the levers 41, 43, the lever falls into it, and the corresponding detent wheel is stopped. The control as a whole acts as stated above, allowing a car driver to use both hands for steering.
Patent GB-154992-A (GB)
Title: Improvements in rocking cars for children
IPC: A63G13/02
Filed: 1919-09-04
Abstract: 154,992. Jones, E. H. Sept. 4, 1919. No Patent granted (Sealing fee not paid). Rocking horses, cars, and the like.-A rocking- car which can be readily packed for storage or transit is built up from flat pieces a, d, g, h of timber &c. held together by grooves, dowels, screws &c. A back rest g may be provided and also handles i which are fixed to the upright part h representing part of a bird &c.
Patent GB-512086-A (GB)
Title: Improvements in or relating to compound-expansion, two-stroke internal combustion engines
IPC: F02B75/02
Filed: 1938-07-22
Abstract: 512,086. Two-stroke engines. HEYLANDT, C. W. P. July 22, 1938, No. 21796. [Class 7(ii)] A compound engine comprises a pump cylinder C in which the charge is compressed up to at least two atmospheres, a combustion and first expansion cylinder A, and a second expansion cylinder B, the valves being timed so that the scavenging and transfer valves d, e both open at about bottom dead centre and remain open for about half the stroke, the valve d closing not earlier than the valve e ; the final compression attained in the cylinder A is that of a normal one stage supercharged engine. The valves d, e may open simultaneously ; alternatively the valve e opens first. The pump delivery valve c and the scavenging valve d communicate by a compressed air receiver extending along the cylinder block, but this and the valve c may be omitted, the pump delivering directly past the valve d. The pistons in cylinder C, B may be connected to cranks set at 180 degrees or 120 degrees with respect to the crank connected to the piston in cylinder A.
Patent GB-1128051-A (GB)
Title: Gear pumps
Inventor: BOTTOMS HARRY SIMISTER
IPC: F04C15/00
Filed: 1965-05-24
Abstract: 1,128,051. Gear pumps. JOSEPH LUCAS (INDUSTRIES) Ltd. Aug.22, 1965 [May 24, 1965], No.21817/65. Heading F1F. To reduce the tendency towards cavitation in a gear pump having a pair of intermeshing gears 12, 13, Fig. 2, with teeth of involute form and inlet and outlet ports 18, 19 respectively, shown shaded, in an end face of the pump body 10, in one or both ends of the gears, there is a hole 20, Fig. 3, for each tooth, preferably at the root thereof, extending from the face of the tooth facing the inlet to the trailing edge of the tooth. This permits entry of liquid to a tooth space which is about to communicate with the inlet and assists filling of this space to eliminate vapour therefrom and thus reduce cavitation.
Patent GB-884324-A (GB)
Title: Drum dryer
Inventor: COHN SAMUEL
IPC: F26B13/00
Filed: 1959-10-15
Abstract: 884,324. Folding fabrics. SAMCOE HOLDING CORPORATION. Oct. 15, 1959, No. 21829/61. Divided out of 875,782. Class 42 (2). [Also in Group XIII] A folding apparatus for material in web form which is utilized in combination with a drying apparatus (Group XIII) comprises idler rolls 102, 103, Fig. 8, about which the material 37 is drawn by a feed roll 104 driven by an air motor 101 and then is drawn downwardly between guide rollers 105, 106 to a pile 108 of folded material. The rollers 105, 106 reciprocally move along a support 107 comprising track members 110, Fig. 10, along which pulleys 113 on the ends of shafts 111, 112 of the rollers 105, 106 run and frictionally grip. The pulleys are rigidly connected to the driving elements 114a of one way clutches 114 and the driven elements 114b of the clutches are secured to the roller shafts so as to be driven in one direction by rotation of the pulleys. Gears 116 on each shaft mesh to cause the material to be gripped and fed downwardly by the rollers. The rollers are reciprocated along the track members 110 by a chain drive 117 driven through sprockets 118 driven by the feed roller 104, one link of the chain being pivotally connected by an arm 120 to one of the links 115 which are secured to the shafts 111, 112 to space the rollers 105, 106. The supply of air to the air motor 101 is controlled in any suitable manner by means (not shown) within the drying apparatus to regulate the speed of the folder in accordance with the speed of the drying apparatus.
Patent GB-1376277-A (GB)
Title: Sustained release medicaments
IPC: A61K9/14
Filed: 1973-05-09
Abstract: 1376277 Sustained release medicaments BATTELLE-INSTITUT eV 9 May 1973 22083/ 73 Heading A5B Sustained release medicaments comprise a medicament present (either as such or as a solution) in the "inkwell pores" of a porous solid which is substantially insoluble in body fluids. The said pores comprise cavities in the solid connected to the surface by a narrower "neck" which has a mean diameter less than half that of the cavity and is below 0.1Ám. The solid may be a "ceramic" oxide, e.g. aluminium, zirconium or silicon oxide, a metal or a synthetic polymer. Various methods of preparing materials having the requisite properties are given including compression moulding and optionally, sintering, dehydrating oxide or hydroxide gels and hydrolysing alcoholates in organic solvents. The active material may be mixed with the starting materials in such processes or the product may be impregnated with the molten material or with solutions thereof, the solvent of which may subsequently be removed. Examples relate to products comprising a) benzoic acid in silica gel and b) 1- propyl-1-cyclohexyl - 2 - methylaminopropane HCI in Aluminium oxide.
Patent GB-408132-A (GB)
Title: Improvements in or relating to pile wires or rods for looms for weaving velvet and like fabrics
IPC: D03D39/24
Filed: 1933-08-05
Abstract: 408,132. Loom pile wires &c. SCHLEMPER, C., 45, M³hlenstrasse, Ohligs, Solingen, Germany. Aug. 5, 1933, Nos. 22092 and 22093. Convention dates, Sept. 17, 1932 and Feb. 14, 1933. [Class 142 (ii).] The wires &c. have removable cutting knives displaceably mounted so that they can be pivoted or rocked about their front ends as shown in Figs. 2 and 3, or about their rear ends, or be slidden in a recess 14, Fig. 7, whereby two or more different points A, B, G, H, I, of the knives may be moved in succession into operative cutting position. Each pile wire may be formed from a blank with two recessed walls, which when folded form recesses with two abutments 4, 4<1>, 3, 3<1>. When the knife is situated with its rear end under the abutment 4, 41, as shown in Fig. 2 the cutting is affected by the front A of the knife. When this part becomes blunt, the knife is moved under the abutment, 3, 3<1>, as shown in Fig. 3, to bring the point B into operative position. Either a curved knife 12 as shown in Fig. 7, or a straight one may be used in the recess 14 and be held by a bevelled overlapping lug 15 a nose 16 of the knife being engageable in one of several recesses 17.
Patent GB-1151733-A (GB)
Title: Improvements in and relating to automatic means for controlling the capacitance in a load circuit connected to a frequency converter.
Inventor: SEGSWORTH R SIDNEY
IPC: H02J3/18
Filed: 1966-05-18
Abstract: 1,151,733. Automatic power control systems. AJAX MAGNETHERMIC CORP. May 18, 1966, No.22164/66. Heading G3R. The power supplied to a load L, e.g. a furnace, from a frequency converter 10 is maintained constant by a circuit 40 controlling the operation of a reversible motor 57 which can be actuated to add or subtract capacitors C to the load circuit. The circuit 40 includes a wattmeter relay 42 which receives a voltage signal derived from the supply 10 by way of a transformer 11 and an adjustable transformer 41, and a load current signal derived from a current transformer 60, this latter signal being applied to the circuit 40 over a further control circuit 50. If the power supplied to the load should vary from a value determined by the setting of transformer 41, contact 45 or contact 46 of relay 42 will energize relay 54 or relay 47 respectively to cause the motor 57 to run in one direction or the other to add or subtract the capacitors C to the load circuit in a manner to keep the power supplied constant. If the capacitance added to the load circuit goes beyond that required for maximum tuning of the circuit, the control circuit 50 operates to de-energize relay 54 and thus prevents the further addition of capacitors. If the value of the load is such that excessive voltage would be required to achieve the desired power level, the operation of control circuit 40 is over-ridden by a voltmeter switch 25 the contacts 26 of which close on over-voltage to de-energize relay 54 and to energize relay 47 so that the motor 57 operates to subtract capacitance from the load circuit until the voltage falls below a safe level. A further embodiment including a modification of the circuit 50 is described with reference to Fig. 2 (not shown).
Patent GB-743404-A (GB)
Title: Improvements in or relating to tinned copper wire
Inventor: WILDBORE WILFRED JOHN LEE
IPC: C25D5/48
Filed: 1951-09-21
Abstract: 743,404. Annealing. STANDARD TELEPHONES & CABLES, Ltd. Sept. 12, 1952 [Sept. 21, 1951], No. 22187/51. Class 72. [Also in Groups XXII and XXXVI] Tin is deposited electrolytically on a copper wire and the wire is then drawn to the required diameter with the required tin thickness. After drawing the wire may be subject to an annealing operation which anneals the copper without damaging the tin coating. In the apparatus shown the tinned wire is drawn over pulley 37 through a series of dies shown diagrammatically at 39 by a drawing capstan 40, the wire passing thereafter over pulleys 41, 42, 46, 47 to a take-up reel 48. The wire is first heated by alternating current passed through it between capstan 40 and pulley 42 to a temperature insufficient to melt the tin, the pulley 42 being cooled by air-blast from nozzle 43 to prevent stripping of the tin coating ; in the stretch between pulley 42 and pulley 46 the wire is further heated to the annealing temperature. Pulley 46 is situated in a cooling water bath 44 into which the wire enters through a tube 45 or an aperture. The electrodeposition of tin may be effected by the apparatus described in Specification 743,405, [Group XXXVI]. Specification 662,387, [Group XXXVII], also is referred to.
Patent GB-653584-A (GB)
Title: Overvoltage protector
IPC: H01H83/10
Filed: 1948-08-23
Abstract: 653,584. Automatic circuit-breakers. BENDIX AVIATION CORPORATION. Aug. 23, 1948, No. 22202. Convention date, Oct. 15, 1947. [Class 38(v)] Each of a number of parallel-connected generators is protected against over-voltage by, an automatic circuit-breaker, only the breaker corresponding to the faulty generator operating to cut out the generator. Each breaker comprises a resetting rod 24 normally held in the contact-closed position by a latch 21 which engages behind a shoulder 23 on the rod. On overvoltage, the coil 10 is energized and the armature 15 attracted against the action of a spring 20, the head 35 of a pin on the armature eventually tripping the latch, so that the rod is moved upwards to the position shown by a spring 28. The rod has a head portion 27 with a slot engaged by an extension 61 of a contact spring 52 connected to a further spring 54 by a contact 55 engageable with a contact 56 on a spring 53. The spring 54 is mechanically connected by an insulating push-rod 66 to two springs 44, which are in turn mechanically connected by a push-rod 67 to two springs 46, the springs 44, 46, co-operating, respectively with contact springs 45, 47. The breaker is arranged in a sealed casing 32 and may be reset by depression of a bellows 34 surrounding the head 27 of the rod 24. Two of the breaker contacts may, alternatively, be normally open so as to close on fault and energize an indicator. Permanent magnets are arranged adjacent contacts 55, 56 so as to blow out any arc formed between them. As shown in Fig: 16, the coil 10 is connected across the generator field 87, so as to be energized on an over-voltage therein. Contacts 55, 56, control the field circuit through a carbonpile variable resistance 91, such as that of Specification 608,508, [Group XXXV], and contacts 46, 47 control the generator switch 86. The remaining contacts are connected to a control circuit 90 such as that of Specification 641,787, [Group XXXV]. To prevent operation of the breaker due to voltage surges, short-circuited copper rings 71 are arranged coaxially with the coil 10 so as to build up an opposing magnetic flux. Changes in the resistance of coil 10 due to temperature changes are compensated by a series resistance 70, whose resistance is large compared with that of the coil. Specification 644,437 also is referred to.
Patent GB-951594-A (GB)
Title: Process for the manufacture of stabilised sintered dolomite
IPC: C04B2/10
Filed: 1960-06-24
Abstract: Stabilized sintered dolomite is produced by calcining crude dolomite, dry grinding the calcined dolomite with a stabilizing agent such as silica or chromium oxide and finally sintering the fine powder mixture.  In an example calcined dolomite and dry quartz in a ratio of CaO : SiO2 of 2.5 : 1 are ground to a fineness leaving a 5% residue on a 170 mesh B.S. screen and then sintered.
Patent GB-379494-A (GB)
Title: Improvements in or relating to loose leaf binders
IPC: B42F13/12
Filed: 1931-08-07
Abstract: 379,494. Loose-leaf binders. MOORE, C. H., 12, St. Bride Street, London. Aug. 7, 1931, No. 22370. [Class 146 (i).] In a loose-leaf binder for filing papers of the kind having a substantially rigid back structure comprising a main part 20, Fig. 1, with two oppositely-disposed flanges 25, 45 to which are connected the covers of the binder, the flanges carrying binding-posts 81 which engage the perforations in the leaves and which may be withdrawn to allow the leaves to be removed, the locking-device for holding the binding-posts in operative position is provided with release mechanism adapted to be operated automatically and momentarily as the binder is placed in position on a tray, but to be inoperative during the movement of the binder from the tray. The locking-device comprises a bar 60 normally held in locking position by a spring plunger 61 which engages a flange 62 on the bar. This bar is housed and slides between an inner plate 26 and the outer channel plate 25, and has slots 64 having straight ends 65 which engage notches 83 in the rounded ends of the posts 81 when these posts are thrust into the slots. In use the binder is placed with its back resting on a tray with the flanges 25, 45, which carry the covers, uppermost, and a fixed vertical pin 121, Fig. 2, on the tray enters a hole 35 in the plate 20 and prevents the binder moving along the tray. Pivoted on the bar 20 is a catch 67 normally held bv a light spring 69 against a fixed stop 70 on the bar. When the pin 21 enters the hole 35, and the head of the pin abuts against the curved surface 68 of the catch, the pin 70 prevents rotation of the catch and the bar 60 is pushed to the right, Fig. 2. The binding-posts 81 are thus released and spring outwards under the influence of the spring 85. On further movement inwards of the pin the end of the catch is forced by the spring plunger 61 into the recess 123 on the pin and the bar 60 is thus again in locking position. When the binder is removed from the pin the upper side of the notch 123 engages the catch 67, rotating it in,an anticlockwise direction against the spring 69 but not moving the bar 60. The binding-posts can thus be locking before removing the binder from the tray. Specifications 241,282, [Class 146 (i), Filing paper &c. sheets], 373,463, and 373,464 are referred to.
Patent GB-811698-A (GB)
Title: Novel pyrrolidine derivatives and a process for the manufacture thereof
Filed: 1957-07-16
Abstract: The invention comprises 3-aryl-3-(lower alkyl) pyrrolidone-(2)-s, particularly those in which the aryl group is phenyl or alkyl-substituted phenyl, the lower alkyl group containing from one to six carbon atoms, and a process for their preparation by converting an aryl- (lower alkyl) acetonitrile into its alkali metal derivative, reacting this with ethylene oxide, preferably in an inert solvent, cyclising the resulting a -aryl-a -(lower alkyl) - g  - hydroxy - butyronitrile with acid, hydrolysing the 2-imino-3-aryl-3-(lower alkyl) tetrahydrofuran (preferably without isolation) to g -hydroxy-a -aryl-a -(lower alkyl) butyrolactone and heating the latter with ammonia above 150 DEG  C., preferably under pressure and between 180-200 DEG  C.  In examples: (1) phenyl-ethyl-acetonitrile is treated with sodamide, the product reacted with ethereal ethylene oxide giving a -phenyl-a -ethyl-g -hydroxy butyronitrile, which is stirred with 15 per cent HCl, the resulting 2-imino-3-phenyl-3-ethyl-tetrahydrofuran heated with 3NH2SO4 and the precipitated a -phenyl-a -ethyl-g -hydroxy-butyrolactone autoclaved with 100 per cent ammonia to give 3-phenyl-3-ethyl-pyrrolidone-2; (2) as in (1) but without isolation of the 2-imino compound; (3) to (5), similarly are prepared 3-phenyl-3-propyl-, 3-phenyl-3-isopropyl- and 3 - phenyl - 3 - methyl - pyrrolidone - 2; (6) 4 - methylbenzyl cyanide is reacted with sodamide and then isopropyl bromide giving isopropyl - (4 - methylphenyl) acetonitrile, which with ethylene oxide and then ethereal HCl yields the hydrochloride of 2 - imino - 3 - (41-methylphenyl 3 - isopropyl - tetrahydrofuran; hydrolysis and treatment with ammonia gives 3 - isopropyl - 3 - (41 - methylphenyl) pyrrolidone - 2; (7) 3 - (31,41 - dimethylphenyl) 3-isopropyl - pyrrolidone - 2 is likewise obtained.
Patent GB-186498-A (GB)
Title: Improvements in and relating to attachments for side-cars and the like
IPC: B62K27/12
Filed: 1921-08-25
Abstract: 186,498. Arden, F., and Smith, W. G. Aug. 25, 1921. No Patent granted (Sealing fee not paid). Side-car attachments.-A device adapted to be detachably secured to the frame of a motor-cycle and to which one or more of the chassis members of a side-car may be secured comprises two split lips a, b, adapted to be clamped near the angle between two frame members c, d, and provided with lugs g, e having slots to receive a connecting- bolt j, so that the device can be adjusted to suit different angles between the frame members. Means, such as a tubular lug k, are provided on one or both clips, or on the connection between them, for the attachment of a member of the sidecar chassis. Such member m may have a tapered portion l, adapted to be passed into the lug k and secured therein by a nut screwed on to the threaded end n. In a modification, the lug k receives a bolt having a flat head adapted to be pivoted in a forked lug on the end of the chassis member.
Patent GB-1490212-A (GB)
Title: Manual telephone exchange systems
IPC: H04Q3/62
Filed: 1975-03-24
Abstract: 1490212 Semi-automatic exchange systems PLESSEY CO Ltd 24 March 1975 [21 May 1974] 22559/74 Heading H4K A manual PBX including extension lines, coresponding line circuits 3, an operator's switchboard 18 and exchange lines is modified by the addition of equipment 1 including a line interface circuit (LIC) for each line circuit 3, a line scanner 2, a crosspoint switch 7, link circuits 9 and registers 6, this modification enabling extension-extension and/or extensionexchange line connections to be set up via the switch 7 without operator assistance if a line circuit is strapped to its associated LIC. Automatic extension-extension connection.- An extension's off-hook condition is detected by its line circuit 3 which transmits a calling signal (CS) to the corresponding LIC. A line scanner 2 detects this signal and the scan is stopped at the calling ine. The LIC is then connected in the conventional way through the dry-reed switching network 7 to a free link circuit 9 and register 6. The link circuit reverts dialling tone to the calling extension and scanning resumes. When the (two-digit) code of the called line has been entered in the register the latter signals the scanner 2 to stop its scan at the called LIC. A marking potential applied to this LIC results in the completion of a path through the switch 7 to the link previously assigned to the connection. The connection is now established and the register is released. To obtain an exchange line through the operator a caller presses his recall key and lifts his handset, resulting in an extension call lamp flashing at the switchboard. To call the operator a caller lifts his handset and dials "9" or "91". Automatic extension-exchange line connection. -Procedure as above for an automatic connection, but digit "0" is dialled when caller hears dialling tone. This results in calling LIC being connected to free exchange line through matrix 7. To call another extension, the caller lifts his hand set which results in his extension lamp at the switchboard glowing steadily. The operator answers and makes the required connection. Both the above-described automatic dialling facilities may be provided in conjunction with a single manual exchange.
Patent GB-261867-A (GB)
Title: Improvements relating to stuffing boxes, pistons, cross-heads and the like
IPC: F16J15/18
Filed: 1925-09-10
Abstract: 261,867. Olarenshaw, G. T. Sept. 10, 1925. Piston packing; crossheads.-A piston or crosshead is provided with alternately expansible and contractible rings 3, 4, adjusted by a screw ring 18 locked by a plate 8.