baber/WOPTO huggingface dataset:
Patent GB-560680-A (GB)
Title: New substituted ureas
IPC: C07C275/14
Filed: 1942-10-12
Abstract: Bis-ureas, useful as respiratory stimulants, of the formula X-CO-NR-A-NR-CO-Y, where the R's are alkyl groups which jointly contain not more than 8 carbon atoms, X and Y are radicals of dialkylamines or heterocyclic secondary amines having a molecular weight not exceeding 120, and A is an alkylene chain of 2-6 carbon atoms which has one or more alkyl, alkoxy, or alkoxy alkyl substituents or two such chains united by -O-, -S-, -NH-, or -N.Alkyl-, are prepared by reaction of a monourea X-CO-NR-A-NHR with a carbamyl chloride Y-CO-Cl, or with phosgene to form the carbamyl chloride X-CO-NR-A-NR-CO-Cl which is subsequently caused to react with an amine YH.  The monoureas are prepared by combining one molecule of a diamine RNH-A-NHR with one molecule of a carbamyl chloride X-CO-Cl. In an example NN1-dimethyl-2-methoxytrimethylenediamine - N - carboxylic diethylamide - N1 - carboxylic piperidide is made from piperidine-N-carboxylic chloride and N-methyl-N1 - diethyl - N - (3 - methylamino - 2 - methoxypropyl) urea which is itself made along with a little NN1-dimethyl-2-methoxytrimethylenediamine - NN1 - dicarboxylic bis - diethylamide from diethylcarbamyl chloride and NN1-dimethyl-2-methoxytrimethylenediamine. Specification 560,698 is referred to.
Patent GB-577930-A (GB)
Title: Improvements in or relating to ammunition for small arms
IPC: F42B8/16
Filed: 1939-05-15
Abstract: 577,930. Practice ammunition. MACRAE, A. E., and DIXON, C. A. May 15, 1939, No. 14421. [Class 9 (i)] A practice bullet particularly for operating machine guns and automatic rifles, comprises a hollow casing a of wood or a mouldable non- metallic material with a filling b of copper dust or granulated copper, which is preferably oxidized. The base of the casing is closed with a disc c of hard paper or like substance and sealed with glue.
Patent GB-185179-A (GB)
Title: Improvements in or relating to apparatus for the catalytic synthesis of ammonia
IPC: C01C1/04
Filed: 1921-05-24
Abstract: 185,179. Casale, L., and Leprestre, R. May 24, 1921. Catalytic apparatus; ammonia, catalytic production of from nitrogen and hydrogen. - An apparatus for the catalytic synthesis of ammonia is constructed of three concentric tubes. the outer being the pressure tube, the middle, one containing the catalyst, and the inner one provided with a heating element; and the disposition of the gas coniaections is such that the entering gases pass first between the outer and middle tubes, then traverse the inner tube and are finally conducted through the contact material. By this means, the internal wall of the pressure tube is protected against excessive, heating. In the apparatus shown in Fig. 2, the gases enter by tube 14 and conduit 11, rise between the pressure tube 1 and the insulating layer 17 covering the catalyzing-tube 4, penetrate by a passage into the internal space 7 containing an electric heating- coil 10, pass through the holes 8, rise through the catalytic space 6 and discharge by the passage 18 and tube 15. The catalyst is withdrawn by removing plate 9, and fresh material is admitted by removing the plug 13. In a modification of the apparatus, the space between the pressure tube 1 and the catalyzing-tube 4 is fitted with a tubular partition or partitions, in order that the incoming gases may take a circuitous course before passing into the inner space 7. Specification 176,144 is referred to.
Patent GB-117184-A (GB)
Title: Improvements in Piston-head Packing Rings.
Inventor: MUMMERT ARDEN JOHN
IPC: F16J9/20
Filed: 1917-10-06
Abstract: 117,184. Mummert, A. J. Oct. 6, 1917. Pistons for internal - combustion or other engines are provided with one or more split expanding rings formed with pockets for picking up oil during the forward stroke and releasing it during the return stroke. Fig. 4 shows a split ring 1 formed with a pocket a., the rear edge e of which picks up oil, while the forward edge e' is of reduced diameter and releases oil during the return stroke. In order to pick up surplus oil, a pocket a<1>, without a releasing edge, may be arranged to the rear of the pocket a, and separated from it by bearing surfaces. The pockets a, a' may be in the form of grooves, or of holes, or of elongated pockets, which may be tapered towards their ends. The pockets may be formed between two rings which may abut, or, as shown in Fig. 10, may be concentric rings 15, 16 with a pocket k between them.
Patent GB-333285-A (GB)
Title: Improvements in or relating to reflex lights for the rear of cycles, motor cycles, and other vehicles and for road warning signs, advertising signs and the like
IPC: B62J6/20
Filed: 1929-05-09
Abstract: 333,285. Caddy, E., and Caddy, S. C. May 9, 1929. Reflex lights comprise a casing a containing a reflector b which may be plain or fluted, and at the outer face a coloured disc o resting on a seat d and having a central aperture e through which the incident light passes. A transparent disc f serves as a cap or cover and is held in position by a flange g. Alternatively the reflecting surface may be constituted by the inner surface of the casing a or by a separate metallic reflector. In one modification the reflecting surfaces are arranged on the inner surface of a domed casing which is surmounted by a dome-shaped glass cover provided with coloured portions of the same or different colours. The coloured portions may consist of celluloid sections. In a further modification the casing is a portion of an upright cylinder housing the reflectors and fitted at the front with a cylindrical glass cover. A reflecting surface is also fitted at the lower end of the cylinder, and the upper end may have a domeshaped transparent cover. A number of such reflex lights may be associated to form a road signal or an advertizing sign. Reference has been directed by the Comptroller to Specifications 14265/13, [Class 118 (ii), Signals], 148,939, 263,742, and 274,282.
Patent GB-863519-A (GB)
Title: Improvements in or relating to transmission belts
IPC: F16G5/08
Filed: 1959-04-29
Abstract: 863,519. Driving belts. MURRAY, F. C. April 29, 1959, No. 14621/59. Class 80 (1). A V-belt of conventional construction and of angle B is formed with a V-groove 19 of angle C extending from its inner surface to more than half its thickness, the faces of the groove being deflected as the belt laps its pulleys. Under no-load the outer surface of the belt as it laps its pulleys is convex, Fig. 3, not shown, but becomes straight under load, Fig. 4, not shown, with consequent uniform stressing of the reinforcing cords 16. The effective belt angle D = B + C is slightly larger than the pulley angle A, Fig. 3 (not shown), and the transverse flexing of the belt aids cooling.
Patent GB-1399441-A (GB)
Title: Aerial survey method and system
IPC: G01S13/84
Filed: 1973-03-27
Abstract: 1399441 Photo-electric positioning SHORE OCEAN SURVEYS PTY Ltd 27 March 1973 [27 March 1972] 14691/73 Heading H4D A helicopter is positioned above a point by aiming a beam of substantially coherent electronmagnetic radiation vertically from the point and moving the helicopter until a predetermined number of detectors on the helicopter are activated. Helicopter H has detectors D which are activated by laser L. The detectors may be in a triangular or square array and when all or a certain number of the detectors are simultaneously activated by laser L, the helicopter is positioned with sufficient accuracy above the laser, an indication being given to the pilot. When the helicopter is positioned antenna AT can be activated to transmit to remote stations A, B to determine the distances to the station and thus for the position of the laser location.
Patent GB-117187-A (GB)
Title: Improvements in and relating to Firing Pins for Rim Fire Rifles.
Inventor: COPP CHARLES
IPC: F41A19/13
Filed: 1917-10-11
Abstract: 117,187. Copp, C., and Mayes, T. Oct. 11, 1917. Breech actions, sliding breech-block; adapting for miniature ammunition.-Consists in a firing- pin for a rifle adapted for rim-fire cartridges, having an enlarged head adapted to strike the whole of the base of the cartridge. The striking-face may be flat, concave, or convex. In the construction shown, the face of the enlarged head 6 of the firing-pin 1 is formed with a central recess 3 and with radial grooves 4 which separate the projecting edge into a number of striking projections 5.
Patent GB-937054-A (GB)
Title: Improvements relating to pneumatic gauging apparatus
Inventor: WEATHERBY DAVID JAMES
IPC: G01B13/10
Filed: 1961-04-24
Abstract: 937,054. Pneumatic gauges. THOMAS MERCER Ltd., and D. J. WEATHERBY. April 24, 1961, No. 14725/61. Class 106 (2). The pressure in conduit C leading to the gauging head D of a pneumatic gauging system is substantially maintained after removal of the workpiece E by closure of a solenoidoperated valve F, air now escaping only through a small orifice G. Closure of valve F is accompanied by operation of a three-way valve K to isolate the gauge J and introduce a compensating volume L. Pressure switches M and N correspond to maximum and minimum tolerances on the workpiece dimension, and give " reject " signals when both are open or both are closed. Specification 674,182 is referred to.
Patent GB-774628-A (GB)
Title: Plunger control means for fuel injection pumps
IPC: F02M41/14
Filed: 1955-05-23
Abstract: 774,628. Fuel-injection pumps. ROOSA, V. D. May 23, 1955, No. 14773/55. Class 102(1) In a fuel-injection pump a rotor 16 has a transverse bore 30 in which slide two pistons 31, 32 each fitted with a shoe 33 having a roller 37 engaging a cam track 38. The stroke of the pistons is limited by the ends of a leaf spring 45, the position of the ends being adjustable by a screw 46 securing the spring to a cutaway portion of the periphery of the rotor. The shoes are held in position by a feed pump 10 through an adjustable metering valve 20 and the rotor has a portion 15 which controls the suction connection to the port 21 and the delivery to a number of outlets 24.
Patent GB-940430-A (GB)
Title: Improvements in and relating to a.c. motor control systems
Inventor: WOODLIFF GEOFFREY EDMUND
IPC: H02P25/26
Filed: 1959-04-30
Abstract: 940,430. Automatic speed control. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. April 28, 1960 [April 30, 1959], No. 14801/59. Heading G3R. [Also in Division H2] In a speed control system for induction motors having a variable resistor, e.g. a liquid resistor, in the rotor circuit the arm AR of a mechanism for displacing a member of the resistor is coupled to the shaft SH of a D.C. positioning motor 1 supplied from an amplidyne 2 having a control winding 3 arranged to be excited by way of a switch SO either in dependence upon a conventional closed loop feed-back system or in accordance with the difference between a predetermined proportion of the voltage across the positioning motor and a reference voltage the value of which corresponds to the position of a manual control member, such as a driver's lever, means being provided for automatically changing this reference voltage at a predetermined point of a control operation tending to reduce the rotor resistance. As shown, a resistance RE connected across the armature of motor 1 provides a voltage representative of the speed of the motor and a potentiometer 4 across a constant direct voltage source T1, T2 has tappings TP1, TP2 which provide reference voltages at two predetermined different levels. The polarity of the reference voltage and therefore the direction of rotation of the motor 1 can be controlled by closing contacts C<SP>1</SP> or CC<SP>1</SP>, and the reference voltage to be applied to the winding 3 can be controlled by closing contacts FT<SP>1</SP> or ST<SP>1</SP>. A circuit arrangement (Figs. 2 and 3, not shown) is provided so that the appropriate contacts are operated in dependence upon the movement of a driver's lever,the arrangement being such that a member of the variable resistor is moved first at a high rate and then at a low rate.
Patent GB-541610-A (GB)
Title: Improvements relating to side delivery rakes
IPC: A01D78/00
Filed: 1940-10-04
Abstract: 541,610. Side-delivery rakes. BAMFORD, C. J., and BAMFORD, H. V. Oct. 4, 1940, No. 14860. [Class 6 (iii)] In a side-delivery rake of the kind having a rakedriving shaft crossing the road axle in a fore-and-aft direction and driven by bevel gearing from the road axle or from a road wheel, the bevel gearing is enclosed in a casing having a hollow body 10 which extends under the gearing and has end walls 21, 22, and side walls 18, 19. The side walls each have the whole or part of a bearing for the road wheel axle 13 and the end walls each have a bearing for the rake-driving shaft 25 and are provided with guides 32 for a reciprocating slide 31 which carries forks for two clutches or for a clutch and a bevel pinion sliding on the shaft 25. As shown the shaft 25 carries pinions 30, which gear respectively with an inner and outer set of skew teeth on a wheel 12 on the axle 13. One of the pinions is looss on the shaft but connectable thereto by a clutch 27 while the other is keyed to the shaft but is brought into gear by sliding along it. The casing is provided with a centre-bearing 26 for the shaft 25, which incorporates a bearing for the shaft 13. The slide 31 is connected by bolts 34 to a parallel bar 33, the position of which is controlled by a lever 39, moved over a quadrant 37 fixed to a lug 36 on the casing. One side wall of the casing is provided with a pair of lugs to which frame members of the machine are attached.
Patent GB-834781-A (GB)
Title: Improvements in or relating to apparatus for adjusting the length of the balance spring of a timepiece balance wheel assembly
IPC: G04D7/12
Filed: 1955-05-25
Abstract: 834,781. Testing hair-spring and balance wheel assemblies of timepieces. CROMPTON, E. H. May 18, 1956 [May 25, 1955], No. 15033/55. Class 139 An apparatus for testing and adjusting timepiece balance and hair-spring assemblies comprises a disc assembly 20, Fig. 3, and a support 22 between which the balance staff is mounted in centres 23, 24. The assembly 20, Fig. 7, comprises front, intermediate and rear discs 26, 28, 27 and a ring member 25 mounted on a support 21. The disc 26 carries a block 31, Fig. 5, having an anvil 32, a blade 33 and a recess which embraces a rotatable shaft 34 carrying a roller 35, Fig. 7. Located in a slot in the intermediate disc 28 is a member 38 having a projecting portion 39, Fig. 5, having a blade 41 and a marking part 40. The member 38, Fig. 7, has a slot in which is located a member 43 carrying a spindle 45 on which is mounted a second roller 46. The member 38 is loaded by a spring 47 and the member 43 by a spring 48 so that the rollers 35, 36 are urged together. A bell crank lever 50 is controlled by a rod 52 actuated by an electromagnet 53 so that the member 43 may be displaced upwardly to separate the rollers 35, 36 to allow insertion of the hair-spring end. The assembly 20 is. then manually rotated to correctly align the balance assembly. Rotation of the wheel 54, Fig. 3, by hand or by motor, is transmitted through gearing to the first roller 35 and through a friction gear train 66, 72, Fig. 5, mounted on a carrier 63 to the ring 25, Fig. 7. The arrangement is such that rotation of the wheel 54, Fig. 3, results in rotation of the roller 35 in one direction and rotation of the disc assembly 20 in the opposite direction to an equal extent. The oscillations of the balance assembly are picked up by photoelectric means 80, 81, connected to computing means 82 and indicating means 83. When the balance assembly is at the desired frequency the electromagnet 53 is actuated to move the member 38, Fig. 7, downwardly so that the blade 41 cuts the excess length of hair-spring and the part 40, Fig. 5, kinks the hair-spring.
Patent GB-336554-A (GB)
Title: Improvements in and relating to doctors for paper making machinery
IPC: D21G3/00
Filed: 1929-05-14
Abstract: 336,554. Johnson, Sir L. S., and Vickery, F. W. May 14, 1929. Doctors.-A doctor has the edge of the blade pressed on the roll by spring pressure acting from its carrier on to the face and on to the edge of the blade which can thus be set at an angle from 45‹ to nearly radial to the roll and can move against spring action in two directions without risk of chattering. A support intermediate between the blade and the carrier has mutually inclined faces on one of which the blade is spring-pressed, the other being for attachment to the carrier, thereby economizing space, and further, the support is rendered. stiff by reason of its bent cross-section. In the form shown in Fig. 1, the carrier 1 is pivoted at 2 and has screwed to it, a bent spring plate 4, preferably in short lengths, and a support 5 rabbeted to receive the blade 3, the working position being with the blade 3 inclined to the face of the support 5 owing to weight, or spring pressure which is applied to the carrier 1. Leaf-springs 7, Fig. 3, may be attached to the support 5 and project through openings 8 therein, or the support may be recessed to carry springs of undulating form extending between abutments spaced along the support and operating on the rear edge of the blade. Alternatively the rear edge of the blade may engage a tapered metal strip pressed endwise by a spring. The support which may be made by extrusion and which may be made in two parts to facilitate cleaning presents a firm edge for initial adjustment of the doctor carrier. According to the first Provisional Specification, the springs acting against the edge of the blade are stiffer than those acting on the face thereof. Specification 176,896 is referred to in the first Provisional Specification.
Patent GB-169759-A (GB)
Title: Improvements in and relating to mowing attachments for agricultural tractors
IPC: A01D34/03
Filed: 1920-06-04
Abstract: 169,759. Evans, A. T., and Evans, E. W. June 4, 1920. Mowing-machines.-A removable mowing-attachment for a tractor comprises a long cutting- apparatus connected by adjustable rods to the tractor framework and the crank case, the crank being driven by sprocket or toothed gearing, a friction or other clutch, and an adjustable cardan shaft from a gear. wheel detachably connected to one of the wheels of the tractor or to some other revolving part. The gearwheel 2 is made in two parts and is shown connected by clamps to a wheel 1 and gearing internally with a pinion on a shaft 7, which is connected by bevel-gearing and a clutch to an extensible cardan shaft 10, ending in the knifeoperating crank 8. The clutch shown is provided with rounded teeth so that it may slip if the knife is obstructed. It is conttc.lled by an adjustable spring 26 and a lever near the driver's seat. The bevel-wheel 5 runs in an oil bath in the gear case 6. The connecting-rod 14 is adjustable in length by means of a turn-buckle 15. The knifebed head 17 is made exceptionally strong and is provided with a hinge 18, and with two adjustable rollers 20. It mav be raised and lowered by means of a lever and links. It is held in position by adjustable rods 21 connected to the tractor and the crank case 9, another adjustable rod 21<A> being provided to help secure the crank case 9. The bolts used for connecting the upper and lower parts of the crank and gear cases may be employed to connect these parts to the tractor.
Patent GB-680807-A (GB)
Title: Improvements in or relating to fluid heater cleaners
Inventor: GLINN ROY JAMES
IPC: F28G15/04
Filed: 1949-06-07
Abstract: 680,807. Soot blowers. BABCOCK & WILCOX, Ltd. June 7, 1950 [June 7, 1949], No. 15163/49. Class 99 (ii). A blower element 2 is continuously coupled to an operating spindle 8, which may be driven by an electric motor 1, by actuating means, such as a rocking lever 27 engaging a sheave-like member 23 on an actuating shaft 22 integral with the element and coupled by a link 14 to a crank 13 secured to a worm wheel 12 driven by a worm 9 on the spindle, which through unidirectional rotation of the spindle effects projection and retraction of the element to and from the operative position, and the element is rotated so that the direction of discharge of cleaning fluid is varied by means also coupled to the spindle and which may comprise a gear 10 on the spindle and meshing with a gear 30 constituting a crank connected to a rack 31 in engagement with a pinion 32 keyed to and slidably fitting the shaft. Rotation of the gear 30 causes the rack to impart an oscillatory movement to and about the axis of the element in such a manner that the turning rate of the element is less at its extreme angular positions and so that the surfaces of a fluid-heater, e.g. the tubes of a steam generator, at a greater distance from the blower head 3 are traversed by the jets of cleaning fluid more slowly than those surfaces nearest the head. Steam may be supplied to the element when in the operative position through ports 71, and from a main valve 21, such as described in Specification 533,609, the relay valve 50 of which is operated through a plunger 49 contacted by a collar 24 on the shaft. In the retracted position the shaft may contact a limit switch 48 arranged to cut off power from the motor and to effect starting of the motor of another blower in a series operated in sequence. Specifications 532,692 and 567,166 also are referred to in the Provisional Specification.
Patent GB-941019-A (GB)
Title: Improvements in and relating to the stability of anti-haemophilic globulin (factor viii)
Inventor: MICHAEL STEPHEN ERNEST
IPC: A61K38/37
Filed: 1961-04-27
Abstract: Anti-haemophilic globulin (Factor VIII) is stabilised in aqueous solution by the addition thereto of one or more clinically acceptable, nonreactive, natural or synthetic water soluble polymeric substances.  Specified are soluble proteins such as non antigenic gelatin, human serum proteins e.g. serum albumin, serum gamma globulin, synthetic nitrogenous polymers such as polyvinylpyrrolidone, nitrogenfree synthetic hydrophilic polymers such as polyethylene glycol or polyvinyl alcohol, natural and synthetic polysaccharides e.g. dextran.  The stabilized solution may be dialysed, subjected to sterile filtration and freeze dried.  The protective agent may be added to the eluting solution or to the eluate obtained in the process described in Specification 883,549 wherein a purified A.H.G. solution is obtained by treating crude A.H.G. solution with an ion exchanger at a pH of 6 to 8.