baber/WOPTO huggingface dataset:
Patent GB-117318-A (GB)
Title: Slide Rule.
Inventor: CHEW ALBERT CHARLES
IPC: G06G1/12
Filed: 1917-07-26
Abstract: 117,318. Chew, A. C. July 26, 1917. Slide-rules for use in solving problems in plane and spherical trigonometry in addition to the ordinary uses of a slide-rule comprise on one side log scales A, B, to a double radius, preferably of 25 c.m., and log scales D, C of single radius, the scales A, D being on the stock and the scales B, C on the slide. In addition, there is formed on the slide a scale L of logs, used in connexion with the scale D. On the reverse side are log. scales M, M<1> of minutes reading from 4 to 34 minutes, which scales mav be read as sines or tangents and the circular measure of these angles may be read on a scale A* which is similar to the scales A. B. The graduations of the 10. 20, and 30 minutes are differently coloured to indicate that from them can be obtained the values of 1, 2, and 3 minutes. Scales S, S' are log. scales of natural sines from 34 minutes to 90 degrees set out to a single radius, the supplements of the angles being marked above the graduations on the scale S' and the complements above those on the scale S. The scales M<1>, S<1>, A* are carried by the stock and the scales S, M by the slide on which are also formed to a single radius two log. scales T, T* of tangents, graduated respectively from 5 degrees 43 minutes to 80 degrees 17 minutes and from 84 degrees 18 minutes to 89 degrees 59 minutes. From the scales M. M<1>, S, S<1> in cooperation with the scales A. A*, B can be obtained the circular measure, sines. cosines, secants, cosecants, and tangents of angles from 1 minute to 50 degrees 42 minutes and from the scales T. T* tangents of angles from 5 degrees 43 minutes to 89 degrees 59 minutes. The scales M, M<1>, T* may be differently coloured tn the remainder, and the centre indices of the scales A. A*, B and the centres of the scales S, S'. T, T* are distinguished by longer differently coloured lines Q, Q<1>. Various formulµ such as G/L + 1, 0-1, B-1 are placed at different points of the scales, the first being employed in the operation of division and the others used in conjunction with the lines Q, Q<1> to obtain the decimal point in multiplication, examples of their use being given in the Specification.
Patent GB-1458410-A (GB)
Title: 1-oxadethiapenicillanic acid derivatives
IPC: C07D499/00
Filed: 1974-03-11
Abstract: 6 beta -Acylamino-1-oxadethiapenicillanic acids of the following formula <IMAGE> in which A denotes hydrogen or methoxy and R denotes an aliphatic, aromatic, heterocyclic, araliphatic or heterocyclic-aliphatic carboxylic acid radical or the 1-aminocyclohexylcarbonyl radical, are prepared. These compounds are obtained by introducing the carboxylic acid radical R into an appropriate 6 beta -amino compound or  beta -benzamido compound. The acid group and/or the amino group in the starting compounds can be intermediately protected. The compounds obtained can also be converted into their salts, amide and ester derivatives. The penicillanic acids prepared can be used as antibiotics.
Patent GB-878084-A (GB)
Title: A pole-changing split-pole motor
IPC: H02K17/06
Filed: 1958-04-03
Abstract: 878,084. Induction motors. LICENTIA PATENT-VERWALTUNGS-G.m.b.H. April 3, 1958 [April 5, 1957], No. 10818/58. Class 35. In a shaded pole motor having alternate poles carrying windings 14 which may be energized with like polarity or with opposite polarity to halve the effective polenumber, and in which the poles are designed to produce a spatial third harmonic in the working flux, giving rise to a sub-synchronous speed (i.e. <SP>1</SP>/ 3  synchronous speed) when the windings are energized with like polarity for the higher pole-number, a resistor 16 is connected in series with the motor in this connection to reduce the input to the motor at the sub-synchronous speed. The stator comprises an inner star 12 and a yoke ring 11.
Patent GB-551629-A (GB)
Title: Improvements in metal wall coverings
IPC: E04C2/32
Filed: 1941-08-27
Abstract: 551,629. Walls. MEAD, McLEAN & CO., Ltd., and VIDAL, J. F. B. Aug. 27, 1941, No. 10931. [Classes 20 (ii) and 20 (iv)] To give a shop or other building an attractive appearance, its front wall is covered with vitreously enamelled iron sheets d having regularly spaced flutings d<SP>1</SP> and intermediate flat surfaces d with curved edges merging into the flutings. A bottom row of plates rest on a footing f and is supported at the top by a cross-bar g. A top row of plates rests on the cross-bar g and is supported at the top by a top cross-bar g<SP>1</SP>. The cross-bars may support tubular lamps for floodlighting the plate surface.
Patent GB-137983-A (GB)
Title: An improved appliance for clearing ash from fire-grates, furnace fire bars and the like
IPC: F23J1/00
Filed: 1919-05-02
Abstract: 137,983. Smith, W. M. May 2, 1919. G r a t c s , clearing. - Fingers b projecting upwards between the bars of a furnace or domestic firegrate are carried on a frame a which is supported on a lower frame c, the frame a being vertically adjustable on guide-posts e on the lower frame, and the lower frame being mounted to slide in horizontal guides d. As shown in Fig. 1, the vertical adjustment is effected by cams i on shafts with handles at their ends, by which they may be turned and also moved longitudinally to reciprocate the whole apparatus horizontally. The upper frame may be mounted between springs f, g, or these may be dispensed with and the cams made with lateral retaining rims i<2>, as shown in Fig. 4, to engage depending lugs a<2> on the upper frame.
Patent GB-1281785-A (GB)
Title: Process for preparing synthetic rubber latices
IPC: C08L31/00
Filed: 1970-03-06
Abstract: 1281785 Cationic synthetic rubber latices JAPAN SYNTHETIC RUBBER CO Ltd 6 March 1970 [8 March 1969] 10991/71 Heading C3P There is incorporated in an anionic synthetic rubber latex, (a) a cationic surfactant which is an adduct of ethylene oxide and an alkylamine and (b) an amphoteric surfactant containing a carboxylic group and a quaternary N atom, or a surface active lignin derivative, whereafter the pH of the latex is adjusted to 7À5 to 2 with an acid. Surfactant (a) may be the adduct of ethylene oxide and an acylaminoalkylene amine. Surfactant (b) may be a betaine, an imidazoline compound, sodium lignin sulphonate, ammonium salt of thiolignin or the condensate of an amine salt of thiolignin and formaldehyde.
Patent GB-905010-A (GB)
Title: Improvements in and relating to printing paper
IPC: D21B1/12
Filed: 1960-03-29
Abstract: 905,010. Mechanical, non-woody pulp. HAWAIIAN DEVELOPMENT CO. Ltd., and CROWN ZELLERBACH CORPORATION. March 29, 1960 [March 30, 1959], No. 11021/60. Drawings to Specification. Class 96. A paper pulp suitable for the manufacture of printing paper &c. of high brightness, opacity, smoothness, bulk, ink receptivity, &c. is made from mechanically reduced, finely-divided, non- woody lignocellulose of freeness 25 to 400 c.c. C.S.F. and an inherent Mullen bursting strength of not over 10%. 15 to 85% of a chemical lignocellulose pulp, e.g. softwood sulphite, hardwood kraft, soda, or chemical bagasse pulp, may be included. The mechanical pulp may be derived from depithed bagasse, straw, grass, or cornstalk, &c., reduced by single-, or doubledisc refiners or rod mills, e.g. to powder-like form and may be bleached by sodium hydrosulphite, hydrogen peroxide or chlorine &c.
Patent GB-102898-A (GB)
Title: An Improved Method of and Means for the Manufacture of Projectiles.
Inventor: BEAN JOHN HARPER
IPC: B21K1/00
Filed: 1916-08-04
Abstract: 102,898. Bean, J. H., and Holmes, T. E. Aug. 4, 1916. Cupped articles.-Projectiles, such as shrapnel shells, which are closed at one end and have an internally tapered wall, are made by (1) drawing through dies e a billet a having a cylindrical cavity g, by means of a tapered punch f, the maximum effective diameter of which is greater than the diameter of the cavity g; (2) arresting the billet by a block h after it has cleared the die and during the advance of the punch to the bottom of the cavity; and (3) finally drawing the work through the same or similar dies by means of the same or a similar punch. The cavity g may be produced by piercing the billet in a piercing pot by means of a cylindrical punch. Apparatus for performing the invention may consist of an hydraulic press provided with a horizontal slide 16, on which are mounted a piercing pot 17 and a drawing stool 18 adapted to be brought in turn under a ram by an hydraulic ram 20. The extractor 21 of the pot 17 is actuated by a rod 22 operated by an hydraulic ram. The piercing and drawing punches are carried by a slide 28 adapted to be moved in a direction at right-angles to the direction of movement of the slide 16. The presshead 26 carries adjustable contact-pieces 29, which, by encountering stops 30 on the pot 17 or stops 31 on the stool 18, limit the descent of the piercing or drawing punch.
Patent GB-520369-A (GB)
Title: Improvements in and relating to propelling pencils with lead sharpening means capable of being brought into the operative position
IPC: B43K21/10
Filed: 1939-04-12
Abstract: 520,369. Pencil-holders. PUR G S T A L L, A. HAMMER-. April 12, 1939, Nos. 11076 and 11077. Convention dates, May 17, 1938, and Feb, 10, 1939. [Class 146 (iii)] In a propelling- pencil with leadsharpening means 18 capable of being brought into the operative position, the variable forwardfeed of the lead 4 is controlled by the axial resistance of the sharpening blades acting against the lead a frictioncoupling being used, which also controls the pressure between the lead and blades during sharpening. The pencil case 1, encloses a screw-feed spring 8 enclosed in a sleeve 7 and engaged by pins 5 extending from carrier 2, through sleeve 3. Sleeve 7 is held to the case 1 by a friction - coupling having a member 10 arranged on a bush 11 screwed into the case, and a member 12 arranged on a sleeve 7. The members 10 and 12 are pressed together by a spring 13 between a collar 3a of sleeve 3, and a flange of bush 21 slidable on sleeve 3. and slotted and threaded for a pin 15, and spindle 22. The spindle 22 has a ring handle 24 and a collar 23 engaging the knob 14 and is used to adjust the spring 13 and hence the pressure between the members 10 and 12. Axial pressure on the lead 4 and the lead-carrier 2 opposes the force of spring 13 and varies the slip in the coupling, thus reducing the forward-feed of the lead. Slipping-back of the lead may be prevented by a ring 30, Fig. 4, acting against an abutment 31 on sleeve 7 and disengaged by a push-knob 32. The sharpening-device comprises blades 18 fixed to a ring 17 which is moved either by a push-knob 19, Fig. 1; or by the locking- mechanism 30, Fig. 4.
Patent GB-798133-A (GB)
Title: Industrial lift trucks
Inventor: SCHROEDER CHARLES SCHOERN
IPC: B66F9/18
Filed: 1956-04-12
Abstract: 798,133. Lift trucks. YALE & TOWNE MANUFACTURING CO. April 12, 1956, No. 11133/56. Class 78 (3). A masted lift truck has a plurality of loadmanipulating devices on the lifting carriage, a hydraulic motor on the carriage for each device, an hydraulic connection between the carriage and a source of fluid pressure on the truck body, valve means on the carriage for directing the fluid to a selected one of the motors in accordance with the positioning of the valve means, and means on the truck body for positioning the valve means. The carriage 10 is provided with a grab 12, which is opened and closed by a ram 16, is rotatable about an axis parallel with the longitudinal axis of the truck by a ram 18, and is movable laterally of the truck by a ram 19. These rams, together with magnetically-controlled valves 26, 28 (Fig. 3), are mounted on the carriage 10, whilst switches 44, 45, which operate valves 26, 28, and a valve 22, which controls the direction of flow of the fluid through pipes 20, 21 are mounted on the body of the truck. Operation of switches 44 or 45 diverts the pressure fluid from ram 16 to ram 18 or 19 respectively.
Patent GB-532659-A (GB)
Title: Improvements in universal joints
IPC: F16D3/76
Filed: 1940-04-11
Abstract: 532,659. Universal joints. WRIGHT, H. CLAYTON-, and GRAHAM, Ltd., H. April 11, 1940, No. 11160/39. [Class 80 (ii)] In a universal joint which includes a rubber bush 6 clamped on a shaft end by screwing a sleeve 2 on to a sleeve or equivalent member, a lock or friction washer 7 is arranged between two abutment rings 8 to prevent uncoupling when the coupling is running in the direction tending to uscrew the sleeves 1, 2. The cylindrical faces of the rubber bush 6 may be ribbed.
Patent GB-180521-A (GB)
Title: Improvements in dispensing nozzles for bottling machines
IPC: B65B39/00
Filed: 1921-04-18
Abstract: 180,521. Fowler, W. M. April 18, 1921. Bottling. - In apparatus for filling bottles &c. with viscous fluids such as jellies, salves, &c., and comprising a casing having an inlet and an outlet, a barrel slidable within the casing and having stops to limit its downward and upward movements, and a reciprocating plunger mounted within the barrel with frictional connection whereby the plunger is moved first with and then along the barrel in both directions to control valves for the admission and discharge of the fluid, an auxiliary outlet valve is secured to the main admission valve and limits its movement in one direction. As shown, the casing 3 is mounted within a supply hopper 1, which communicates with the interior of the casing through holes 21, and has a hollow shank 4 clamped by a nut 6 to a hopper fitting 2 and provided with a removable nozzle 7. A barrel 11 within the casing carries a main valve 9 seating downwards on the casing 3 and having secured to it an auxiliary valve 24 seating upwards within the shank 4 which communicates with the interior of the barrel through holes 22 in the valve 9. The plunger head 12 is secured to a rod 14 adjustably secured at its upper end to a cross-head 114 by nuts 15, 16, a spring 116 providing a yielding connection. Packing 18 is interposed between the bevelled upper surfaces of the head 12 and the bevelled under edge of a slidable collar on a reduced part 13 of the head, and a sleeve 19 is adjusted by a nut 20 on the screwed past of the rod 14 to press the packing outwards against the barrel to provide the required frictional engagement between the plunger and the barrel. As the plunger is raised, the barrel moves to open the valve 9 and close the valve 24 and then stops, the movement of the plunger continuing to draw the fluid into the barrel whence it is expelled on the down stroke, the valve 9 then being closed and the valve 24 open.
Patent GB-987387-A (GB)
Title: Unitized radial shaft seals
Inventor: CARSON BRIAN HUGH KNIGHT
IPC: F16J15/32
Filed: 1964-03-17
Abstract: 987,387. Shaft seals. FEDERAL-MOGULBOWER BEARINGS Inc. March 17, 1964, No. 11223/64. Heading F2B. A shaft seal comprises a metal wear ring 13 which is engaged by a flexible lip 35 of an elastomeric sealing member 34 and is mounted on an elastomeric sleeve 21 which is reinforced at one end by a metal ring 20 bonded thereto and has a lip 25 at its other end that detachably locks the ring 13 on the sleeve. The member 34 is bonded to a flange 32 of an inner case 30 clamped by a spun-over end 42 in an outer case 40 having an offset radial flange 46. A garter spring 36 may be provided to increase the contact pressure of the lip 35 on the surface 16 of the ring 13. When the seal is installed on the shaft to be sealed, the sleeve 21 is compressed between the shaft and the ring 13 and the case 40 is press fitted in a bore in the shaft housing. The radial flange 18 of the ring 13 acts as an oil flinger. In a modification, Fig. 5 (not shown), the sleeve 21 has an integral projection on its bore to fill a keyway in the shaft. Specification 881,607 is referred to.
Patent GB-997740-A (GB)
Title: Improvements in or relating to expansible broaches
Inventor: SYKES CHARLES LESLIE
IPC: B23D43/04
Filed: 1963-03-22
Abstract: 997,740. Broaches. SYKES & HEPWORTH (ENGINEERS) Ltd. June 22, 1964 [March 22, 1963], No. 11388/63. Heading B3L. An expansible broach for cutting internal grooves comprises a guide key (or keys) 5 for location in a groove in a workpiece to guide a cutting tool 1 to form a similar groove at a predetermined pitch. The tool is similar to that described in Specification 939,685 in which the depth of cut is adjusted by the angular positioning of a slotted sleeve 6.
Patent GB-653078-A (GB)
Title: Dial for timepieces
IPC: G04B19/10
Filed: 1948-04-26
Abstract: 653,078. Clocks. FLUCKIGER & CIE. April 26, 1948, No. 11431. Convention date, Feb. 24. [Class 139] [Also in Group VII] A timepiece dial has indicia (e.g. at the 12, 3, 6 and 9 hour positions) formed by precious stones 3 (e.g. diamonds) each fixed to the dial by at least two clips 4 having an upper flange resting on the stone and having feet 6 passing through the dial plate 1 and bent into recesses 6.
Patent GB-271624-A (GB)
Title: Improvements in oil lamp burners
IPC: F23D3/00
Filed: 1927-02-01
Abstract: 271,624. Sherwood, S. H. Feb. 1, 1927. Wick-locking devices.-In an oil lamp in which the wick-winding spindle is secured in the adjusted position by compressing a split sleeve d by means of a nut h, the nut h is formed with a conical abutment h<2> which co-operates with a conical seating g on the sleeve d. The sleeve is provided with a collar d<2> at which it is soldered to the burner wall.
Patent GB-1047154-A (GB)
Title: Improvements in or relating to the measurement of plasma velocity
Inventor: SWIFT-HOOK DONALD THOMAS
IPC: H02K44/08
Filed: 1964-03-18
Abstract: 1,047,154. Generators operating by electromagnetic interaction with fluids. CENTRAL ELECTRICITY GENERATING BOARD. May 6, 1965 [May 18, 1964], No. 11497/64. Heading H2A. [Also in Division G1] The velocity of ionized plasma flowing in a duct 13 of an MHD generator is measured, by determining the time delay between a distinctive voltage fluctuation at an electrode pair 17, 18 and the corresponding fluctuation at a downstream electrode pair 19, 20, which time delay is proportional to the gas velocity. The fluctuations used may be random e.g. those due to swirls and eddies in the plasma flow, or may be artificially induced by varying the local loading of the generator; or by applying an external signal. From the fluctuating voltages (which would be superimposed on a direct voltage in the case of an MHD generator), signals of a predetermined frequency are selected by tuned filters 21, 22 and the relative phase of the selected signals is compared in a comparator 25, the output of which is fed to a meter 26 calibrated in velocity units. Alternatively the two sets of fluctuations may be dis-. played as modulations on timebase traces of a double-beam oscilloscope, and the time delay measured by noting the relative displacement of the two signal patterns on the two traces. Conveniently two suitably spaced pairs of an MHD generator's segmented pick-up electrodes 15 may be used.
Patent GB-886019-A (GB)
Title: Improvements in analogue devices for determining the partial derivatives of a function of several variables
Inventor: BORREL JEAN
IPC: G06G7/46
Filed: 1958-04-11
Abstract: 886,019. Electric analogue calculating systems. COMMISSARIAT A L'ENERGIE ATOMIQUE. April 11, 1958 [April 12, 1957], No. 11522/58. Class 37. In an arrangement of an analogue device for generating partial derivatives of a function of several variables and a computer 23, Fig. 1, wherein the device comprises an electrical network 12, 13, having a plurality of nodes 14 each of which represents one point of a section of space wherein the function is defined, a base element (paper band 1) arranged to be movable in a first direction relatively to the network in accordance with the law of one of said variables and carrying an image of the section as at least one conducting zone 3, 3a to which is applied a potential from a source 7, 7a corresponding to the boundary conditions of the function, a plurality of gliding contacts 10 connecting each node 14 of the network to a corresponding point on the base element, and a pick-up arrangement 18 mounted for movement in a second direction in accordance with the law of another of the variables whereby the potentials between a first pair of nodes A.C. (dx) in the first direction, and between A and a further node B (dy) in the second direction are applied to the computer 23, means are provided for positioning the base element (band 1) and the pick-up arrangement 18, in accordance with the computer outputs X and Y which are functions of the relative positions of the base element and the pick-up arrangement 18 relative to the network. When the apparatus is in use for plotting by means of pencil 36 the trajectory of a particle in a static field, the computer is provided to solve the equations and and motor 41, Fig. 3, driving the band 1 through a roller 44 is controlled in accordance with the difference between the appropriate computer output and a base position indicating potential developed across a potentiometer 57 to correctly position the band relative to the network. A similar arrangement using a circular potentiometer to produce a potential opposing the other computer output for controlling the position of the lateral voltage pick-up arrangement 18 is described with reference to Fig. 5 (not shown). Torque limiters are provided in the potentiometer wiper drives and arrangements are provided to prevent play in the drives. Rollers 16 disposed under the rows of contact rollers 10a are arranged to ensure good contact, and an asynchronous motor 42, Fig. 2, driving a second band roll 40 to maintain a constant band tension. The band is notched for positive driving. The sources of potential 7 which provide the boundary conditions, may be fixed or adjustable, and may be mechanically varied with time. The apparatus may be applied to the following :- (1) the study of linear accelerators, (2) curve following, (3) gradient simulations, (4) problems of heat diffusion in a nuclear reactor, and (5) systems enjoying revolution symmetry or two perpendicular symmetrical planes.
Patent GB-688641-A (GB)
Title: Improvements in and relating to roundabouts for amusement
IPC: A63G1/00
Filed: 1950-05-09
Abstract: 688,641. Roundabouts. CROW, J: A. July 5, 1951. [May 9, 1950] No. 11533/50. Class 132 (i). A roundabout having a substantially annular passenger carrying deck, which may be suspended from overhead supporting means or supported by wheels running on a track or tracks and is revolved about a centre post by hand or power driven gearing, has one or more flights of stairs supported by the deck to give access to an upper deck or to a ring of passenger carrying devices mounted above the lower deck. As shown, the lower deck a is suspended by rods b, c from a structure composed of radial beams d connected by tension rods e to a head f rotating in bearings in the top of a hollow centre post g supported,on the ground. Model cars j having seats, and if desired pedals to revolve their wheels, are supported on the deck with the wheels free. Flights of stairs n provide access to an upper deck o suspended by pins  0 1 and sockets p from the rods b, c. Rockets r having propellors r<SP>1</SP> and transverse seats r<SP>2</SP> are supported by pins t<SP>1</SP>, t<SP>2</SP> received in brackets u attached to rods c. The beams d are attached to a spur wheel w rotatable about a bearing g<SP>1</SP> on the post g by a pinion x on a parallel shaft y driven through bevel gearing y<SP>1</SP> and reduction gearing z<SP>1</SP> from an electric motor z.