baber/WOPTO huggingface dataset:
Patent GB-139529-A (GB)
Title: Improvements in rotary engines
IPC: F01C1/20
Filed: 1918-07-18
Abstract: 139,529. Marks, E. C. R., (Dominion Tygard Engine Manufacturing Co.). July 18, 1918. Movable - abutment type; valves, distributing and cut-off; valve gear and valve actuating mechanism; packing drums, vanes, and abutments; adjusting parts for wear; back pressure, reducing. - The exhaust from the working chamber passes through ports I, J in the rotor to a central chamber in the rotor surrounding an axially movable valve H, and escapes by way of openings Q to chambers 23 in the frame which communicate with a common exhaust outlet. Working fluid passes from the valve H to the working chamber through the channels I, J in the rotor member. The ports in the valve H and in the rotor C are formed with opening edges parallel to the axis of the shaft, and with closing edges parallel to one another but inclined to the axis of the shaft. This provides for varying the cut-off by moving the valve axially. The engine may be reversed by moving the valve to register the valve H with passages in the rotor opening at opposite sides of the vanes. The drums and the vanes are provided with grooves by which leakage of steam is reduced. The casing rotor and abutments are conical in form,. and the abutments are axially adjustable by screws 15 so as to permit the parts to be set so as to reduce friction and wear by ensuring a thin film of steam between contacting members. An elastic coupling between the engine shaft C and the driven shaft consists of a casing S having recesses each containing two conical-ended coiled springs 13 on one member, and on the other a pronged spider 13<1> the prongs of which enterbetween the springs in the recesses.
Patent GB-242885-A (GB)
Title: Shaft coupling
IPC: F16D1/04
Filed: 1925-05-07
Abstract: 242,885. Mirrlees Watson Co., Ltd., Dexter, W. A., and Sargeant, J. E. May 7, 1925. Shaft couplings, particularly applicable to the vertical Shafts of well pumps. The screwed ends 3, 4 of the shafts 1, 2 are engaged by longer nuts 5, 6, the ends of which engage in spigot-and-faucet fashion and are castellated, so that a split pin 9 can be passed through the castellations to secure the nuts 5, 6 together. Washens 14, 15 are arranged below the nuts, and the whole device is covered by a sleeve 10 cross slotted to allow access to the split pin and to tommy-bar holes 7, 8 in the nuts. A thin annular band 17 covers the cross slot and is retained by a resilient ring 18. When the pin 9 is removed, the nuts may be reversed to force the parts axially asunder.
Patent GB-1336978-A (GB)
Title: Heat vulcanizable polysiloxane compositions containing asbestos
IPC: C08K5/10
Filed: 1972-03-15
Abstract: 1336978 Silicone elastomer compositions containing asbestos and acrylic esters GENERAL ELECTRIC CO 15 March 1972 [15 April 1971] 11932/72 Heading C3T A heat vulcanizable silicone rubber composition comprises (a) 15-94À75 wt. per cent of an organopolysiloxane of viscosity at least 10<SP>5</SP> cP. at 25‹ C. having the average unit formula R a SiO 4-a/2  wherein R is a hydrocarbonyl, halo. hydrocarbonyl or cyanoalkyl radical and a is 1À95-2À01, (b) 5-75 wt. per cent of asbestos fibre, and (c) 0À25-10À0 wt. per cent of an acrylic ester ER, ER<SP>2</SP>E, E(C n H 2n O) x R<SP>2</SP>E, RO(CH 2 E) 3  or (ECH 2 ) 4 C, wherein E represents CH 2 =CR<SP>1</SP>-COO-, R<SP>2</SP> is a divalent hydrocarbon radical, R<SP>1</SP> is H or as R, and n is 2-4 and x is 1-10. There may also be present a filler besides asbestos in amount 10-100 wt. per cent of (a), a process aid in amount 1-25 wt. per cent of (a), pigments, e.g. TiO 2  in amount 0À05-3 wt. per cent of (a), and heat stabilizers, e.g. Fe 2 O 3  in amount 0À1-5 wt. per cent of (a). In the examples, 100 p.b.w. of a mixture of 100 p.b.w. of a trimethylsiloxane-terminated polydimethylsiloxane having 0À6% methyl vinyl siloxane units with 15 p.b.w. of a methoxy-terminated dimethylsiloxane / diphenylsiloxane / methyl phenylsiloxane process aid and 50 p.b.w. silica is milled with 1À5 p.b.w. of methyl acrylate or trimethylolpropane trimethacrylate, 1-2 p.b.w. of dicumyl peroxide or benzoyl peroxide, optionally 2 p.b.w. of Fe 2 O 3 , and 50-250 p.b.w. of chrysotile, crocidolite or anthophyllite asbestos, and the resulting sheets are cured by heating. Uses.-Gasket seals, coatings for electric wires and radiator hoses.
Patent GB-937574-A (GB)
Title: Improvements in or relating to remote control systems
IPC: B61L7/08
Filed: 1961-04-04
Abstract: 937,574. Electric selective signalling systems. PHILIPS ELECTRICAL INDUSTRIES Ltd. April 4, 1961 [April 5, 1960], No. 11991/61. Class 40 (1). In a railway .signalling system, a main station A serves a plurality of substations B, each of which responds to a different carrier frequency generated by corresponding oscillators 2, 2<1> at main station H. A command signal from device 4 modulates the output of a selected oscillator 2 or 2<1>, the command signal received through filter 8 at the corresponding substation B.is applied to a mixer 10, which is supplied with the output of a local oscillator 11 having a frequency which is greater than those of oscillators 2, 21 and which is common to all substations and is returned to the main station where it is passed by the appropriate filter 13 and detector 14 and is compared at 6 with the original command signal from device 4, an alarm 15 being operated if the compared signals are not in agreement. A received command signal is decoded at 9 to perform the appropriate function. A signal representing an operation thus performed is used to modulate oscillator 11 and provide an indication on panel 16 at the main station. The " operation performed " signal may also be compared with the stored command signal from device 4 as an additional check on the operation of the system.
Patent GB-375478-A (GB)
Title: Appliance for golf putting practice for indoor or outdoor use
IPC: A63B57/00
Filed: 1931-04-23
Abstract: 375,478. Golf-practising appliances. KING, J. K., 132, Easter Road, Edinburgh. April 23, 1931, No. 12029. [Class 132 (ii).] A device for use in practising putting comprises a golf-hole substitute of the kind wherein a member 8 partly surrounding a space 7 and of sufficient height to prevent a ball readily passing over it, is maintained in position on the playing surface solely by its weight, the extremities of the member.being at a distance apart equal to the maximum width of the space so that the space is open over its full width. The member is preferably of semicircular or U-shape and may be enclosed by larger members 15, 17 of a similar shape. To complete the configuration of the spaces enclosed by the members, fine wires 13 are pivoted to the extremities of each member.
Patent GB-791815-A (GB)
Title: Improvements in and relating to electrically driven tube expander tools
Inventor: GREGORY ALFRED ALEXANDER
IPC: B21D39/16
Filed: 1955-04-27
Abstract: 791,815 Tube expanders. METROPOLITAN-VICKERS ELECTRICAL CO., Ltd. April 24, 1956 [April 27, 1955], No. 12176/55. Class 83 (4). [Also in Group XXXVII] Relates to a tube expander tool comprising rotating rollers, and, in non-locking operational connection therewith, for pressing the rollers outwards, a conical mandrel which is driven by a reversible electric motor. An A.C. motor MA driving the tube expander is started by closing contacts T1, T2 so that current passes through field windings F1, F2, the armature of the motor and a current transformer Q. After a short timedelay, relay C is energized to close contacts C1 in the circuit of an ammeter ME. As the motor current increases, pointer Z2 moves into coincidence with a pre-set pointer Z1 whereupon contacts M are closed and relays A, B are energized. The relay A operates after a short timedelay, determined by capacitor H, whereby contacts A3 are opened to stop the motor and self-maintaining contacts A1 are closed. Opening of contacts A2 allows capacitor G to charge and operate the reversing relay B with a delay which is sufficient to allow the motor to come to rest before being switched in reverse. Contacts Bl, B2 change over the armature connections, the meter not being in circuit during reverse operation of the motor. The motor may be started in reverse by means of a manual switch which changes-over contacts R1 and closes contacts R2. Relays A and B are energized as well as relay D which has contacts D1, D2, bypassing the contacts Rl, R2. Closure of contacts T1, T2 admits full current to the motor which now operates in reverse, the closure of contact T1 releasing the relay D and re-setting the contacts D1, D2. When the contacts Tl, T2 are opened, relays A and B are released to prepare for forward operation.
Patent GB-562711-A (GB)
Title: Improvements in or relating to air screws
IPC: B64C11/06
Filed: 1942-04-17
Abstract: 562,711. Screw propellers. STEVENS, A. H. (Canadian Car & Foundry Co., Ltd.). April 17, 1942, No. 12222/43. Divided out of 562,678. [Class 114] The shank 16 of a blade 15 of wood or composition is secured in its socket 13 by a wire 17 wound round a helical groove in the shank and screwed into a similar groove in the socket.
Patent GB-554408-A (GB)
Title: Improvements in and relating to brake systems
IPC: B64C25/42
Filed: 1941-09-22
Abstract: 554,408. Aircraft wheel brakes. GENERAL TIRE & RUBBER CO. Sept. 22, 1941, No. 12236 Convention date, Sept. 23, 1940. [Class 4] [Also in Group XXXIV] Aircraft landing wheels are provided each with a number of concentric brake drums to which cooperating friction members may be selectively applied to vary the braking effect on each wheel. The brakes may be applied by a hydraulic master cylinder which can be put into communication with the several brake units by a selecting valve. The end walls 70, 71 of a wheel are formed each with a pair of concentric flanges 73, 74 to which steel drums 80 are secured, cooling channels 82 open at both ends being provided between the drums and flanges. Each brake unit may be of the construction described in Specification 550,339, [Group XXXIV], comprising a number of shoes 98 arranged to be applied to the drum by an inflatable annular tube disposed with the shoes in a channel-section support 94 secured to a flange 88 of a torque taking member 83 bolted to a sleeve 85 on the fixed wheel axle 68. The shoes have pins 99 that extend through radial slots in the support 94. Corresponding brake units 1a-4a, 1b-4b of a pair of wheels A, B, Fig. 1, are connected by pipes 8-11 which are connected to a selecting valve V to which also is connected a hydraulic master cylinder 17 by pipe 6. The valve V mounted on the instrument panel 38 of the aircraft comprises a conical plug 28 having a handle 40 and passages 47-51, the passages 47, 48, 49, 51 having circumferential extensions 54 - - 57 of decreasing length. Liquid that may leak past the plug 28 is discharged by a flange 107 and a drain passage 108. In the position shown, upon operation of the master cylinder all the brakes 1a-4a, 1b-4b, are applied but by turning the plug clockwise the pipes 10, 11, 9 are successively cut off and in the final position only pipe 8 and the pair of brakes 1a, 1b are supplied. Release of the brakes, if applied when the corresponding pipe is cut off is effected by axial passages 59 which lead from the radial passages 46 of the casing to radial passages 62 in the plug 28 thence to a pipe 63 connected to the reservoir 24 which maintains the hydraulic system filled.
Patent GB-922257-A (GB)
Title: Method and means for absorbing or dissolving gas in liquids
IPC: B01F3/04
Filed: 1961-04-05
Abstract: 922,257. Contacting liquids with gases. INGENIORSFIRMAN FLIESBERG A.B. April 5, 1961 [April 7, 1960], No. 12263/61. Class 55 (2). In a process for contacting a liquid with a gas the gas is contained in the free space above a body of the liquid in a vessel 1 and liquid is continuously introduced into the vessel through an inlet 5 and projected in the form of a conical veil on to the surface of the liquid therein, the level of liquid in the vessel being maintained constant by withdrawal of liquid at a position adjacent the bottom of the vessel. The liquid entering the vessel is passed over the surface of a conical baffle 7 and gas may be introduced into the vessel as necessary through a pipe (not shown) or together with the entering liquid. Any excess liquid in the vessel may be withdrawn through a pipe 3, the position of which can be adjusted to maintain a desired level in the vessel, e.g. just below or level with the lower edge of the baffle 7. The apparatus may be used to treat water with air.
Patent GB-980428-A (GB)
Title: Improvements in or relating to methods and apparatus for the continuous transformation of hot reduced iron
IPC: C22C33/02
Filed: 1961-04-05
Abstract: <PICT:0980428/C6-C7/1> A sintered iron bar is produced from iron powder formed by the continuous hydrogen reduction of iron ore in a reaction chamber 15 at 600-750  DEG C., the iron powder being discharged into a heated extrusion chamber 1 where extrusion takes place at 600-750  DEG C. The extruded bar may be further compressed by rolls 9 and 10 and finally sheared.  Specifications 965,426, 965,427, 980,425 and 980,427 are referred to.
Patent GB-1063901-A (GB)
Title: Improvements in lifts
IPC: B66B5/14
Filed: 1964-03-24
Abstract: 1,063,901. Overload prevention devices for lift cages. KNUT ANDERS LARSSONS ELEKTRISKA A.B. March 24, 1964 [April 4, 1963], No. 12337/64. Heading B8L. A lift car is provided with a floor which is connected to the frame of the car by pivoted levers adapted to actuate a switch in the control circuit of the lift to stop the driving motor when there is more than a predetermined load on the floor. As shown, a frame 10 supporting the floor is provided with depending projections 11 supporting arms 12 which are connected by links 13 to arms 4a of levers 4. The levers 4 are secured to shafts 2, which are rotatably supported on the base frame 1 of the car, and are connected by cross members 5, 6. Links 7, 8 secured to the cross members 5 are pivotally connected by a pin 9 supporting a weight 16. When more than a predetermined weight, determined by the lengths of the arms 4, 4a and by the size of the weight 16 and of an adjustable weight on the link 8, is situated on the floor of the car, the longer lever arms of the levers 4 are raised and actuate a switch (not shown) mounted between the underside of the floor and the pivot pin 9.
Patent GB-650715-A (GB)
Title: Method and apparatus for forming particles of thermoplastic material into a sheet orfilm or impregnating flexible sheeting with thermoplastic material
IPC: B29C43/22
Filed: 1947-05-07
Abstract: <PICT:0650715/IV (a)/1> Thermoplastic material in powdered form is distributed in a uniform layer on an endless belt 21 on which it passes through an oven 27 containing infra-red radiators 25.  The softened sheet or film emerging from the oven is pressed between a roller 36 and the belt 21 or by a pair of rolls disposed above and below the belt 21 and passes along the under-run of the belt where it may be cooled, e.g. by cooling the belt with air blasts, and is finally stripped off the belt by roller 43 and draw-off rolls 41, 42. A scraper 44 removes any adherent material after the formed sheet has been removed.  The gap between roller 36 and belt 21 may be adjustable. The roll 37 of material which, as shown, is coated with the thermoplastic, is omitted when plain thermoplastic sheet or film is required.  The powder feeding means may comprise a hopper 12 leading to a constant rate of feed device 13 which feeds via a hopper 16 to a tapering board 15 which together with the hopper 16 is vibrated.  The powder falls over the edge 17 of the board 15 and through a slot between members 18, 19 on to the belt 21. Alternatively a trough with a preferably adjustable slot in its bottom or side may be disposed across the belt 21.  The belt, which may be of polished metal, may be heated from above and/or below before entering the oven.  The roller 36 may be heated internally by steam, electricity, &c., or by an extension of the oven 27 or by conduction from the belt 21.  The belt and roller 36 may be lubricated.  The Specification lists a large number of materials, in particular cellulose derivatives, which can be sheeted in the above manner and also lists plasticizers for the materials and resins which can be added to improve the properties of the materials.  In examples: (i) a composition of 67.5 parts cellulose acetate, 26 parts methyl phthalyl ethyl glycollate and 6.5 parts triphenyl phosphate in fine powder form was passed into the oven, the temperature of the plastic sheet leaving the oven being about 420 DEG  F.  The sheet was pressed into cotton duck, cooled to 120 DEG  F. and stripped from the belt; (ii) similar to (i); (iii) cellulose acetate (69 parts) was colloided on a mill at 65 DEG  C. with dimethylphthalate (15.5 parts) and diethyl-phthalate (15.5 parts) in presence of 90-10 acetone-alcohol (85 parts).  The colloidal material was chipped and dried and passed through the apparatus to form a coating for cotton duck; (iv) ethyl cellulose (85 parts) was colloided with tricresyl phosphate (15 parts) on a two-roll mill at 150 DEG  C. and treated as in (iii).  The Specification as open to inspection under Sect. 91 states that induction heating or high-frequency heating may be employed instead of infra-red radiation.  This subject-matter does not appear in the Specification as accepted.
Patent GB-722686-A (GB)
Title: Improvements relating to methods of manufacturing hollow tubular articles of hardened metal such as piston pins
IPC: C21D9/08
Filed: 1953-05-05
Abstract: 722,686. Making hollow tubular articles. OHIO CRANKSHAFT CO. May 5, 1953 [May 7, 1952], No. 12414/53. Class 83 (2). A method of making a tubular heat-treated metal article particularly a gudgeon pin, comprises heat-treating a solid unhardened bar to a depth not greater than the required final wall thickness of the article, thereby leaving an unhardened core, and subsequently machining out the core. A hot rolled, fully annealed medium carbon steel bar 20 is first grooved at 23 by a parting-off tool, to a depth slightly greater than the final wall thickness of a gudgeon pin, the grooves being spaced at distances equal to the lengths of the gudgeon pins. The bar is then hardened by passing it through a highfrequency induction heating coil 26, Fig. 3, containing a cooling and quenching medium 31 which is sprayed on to the heated bar; this produces a martensitic outer layer 19. The bar is then passed through a high-frequency induction coil to temper it; this transforms the outer layer into sorbitic microstructure. The surface of the bar is re-hardened by high-frequency induction to provide a shallow martensitic outer layer 57, Fig. 7, which is finally tempered to relieve the stresses. The core 18 of the bar is still of pearlitic microstructure and is then drilled out, which operation separates the bar into individual gudgeon pins. The surfaces may subsequently be ground. The full heat treatment is preferably carried out in a continuous process. Examples are given of the induction frequencies, power consumed, hardening and tempering temperatures, and speed of travel of bar. As an alternative the heat treatment may comprise a single process of providing a martensitic outer layer. The heating may be done by gas instead of high frequency induction and the initial grooving of the bar may be omitted.
Patent GB-1371885-A (GB)
Title: Data transmission systems
IPC: G06F13/00
Filed: 1973-03-15
Abstract: 1371885 Selective signalling DATA SOURCE CORP 15 March 1973 [28 March 1972] 12494/73 Heading G4H A plurality of remote terminals are addressed in turn over a single duplex communication channel, return of a carrier signal stopping the addressing sequence. A central processor, via a buffer concentrator, an inverter, a NAND gate and a modulator transmitter, sends the address signals to the remote terminals, once a flip-flop has been set via a single-shot to enable the NAND gate. Each address signal has a start bit, 7 address bits, a parity bit and a stop bit. When a terminal which wishes to communicate recognizes its address, it returns a carrier which is detected in a demodulator receiver to reset the flip-flop via a single-shot. Due to transmission delays this occurs (or can occur) during the sending of the next address, but the 7th address bit of each address signal is a "space" and the interruption of address transmission results in a continuous "mark" level, so the interrupted address is not recognized by any terminal. The signals in the two directions may use respective line-pairs of a telephone line, or different frequencies on a single line-pair, or radio (e.g. microwave). Use for credit authorization is mentioned.
Patent GB-254844-A (GB)
Title: Improvements in wireless variable coil holders
IPC: H01F27/00
Filed: 1925-05-14
Abstract: 254,844. Peters, J. H. May 14, 1925. Wireless tuning-apparatus, adjustment devices for.-The movable coil mounts A, C of a wireless coil-holder are provided with pointers or engraved lines G, H which register with scales D, E on the body of the coil-holder. The scales may be perpendicular, horizontal, or inclined. The invention is applicable to holders having two coils only. Reference has been directed by the Comptroller to Specifications 204,376, 206,899, and 225,279.
Patent GB-528074-A (GB)
Title: Improvements in or relating to a method of riveting and apparatus therefor
IPC: B21J15/04
Filed: 1939-04-26
Abstract: 528,074. Setting hollow rivets. CUCCHI, A., and MANZINI, G. April 26, 1939, Nos. 12563 and 12564. Convention dates, April 27, 1938, and Oct. 26, 1938. [Class 43] Hollow rivets are set in positions accessible from one side only by a riveting snap which extends around only a part of the periphery of the tail of the rivet but which is moved between successive striking impulses of the snap to operate on successive sectors of the periphery until the whole of the tail is set. The riveting snap 12 is divided longitudinally into at least two parts 12a, 13 one 12a of which has a lateral extension 12b which will pass through the hollow rivet when the other and guide part 13 is retracted. The snap 12 is axially rotated between successive impulses produced by spring or other mechanical means, or electro-mechanical or pneumatically actuated means, and is removably held by a bayonet catch in a tube in a casing of the riveting apparatus having two handles 20. An operating lever 21 under one of the handles controls the blows of the movable snap 12 and the rotation of the snap and is locked after one revolution of the snap. A second operating lever 22 controls the retraction and advance of the guide bar 13 of the snap and releases the locking means for the snap. The latter is mounted at the lower end of a vertical tube 27 adapted to be depressed against the pressure of a heavy spring 78 by raising the operating lever 21 about its pivot 23, the lever 21 carrying arms 24 pivoted on vertical pivots and pressed by springs to hold the ball-shaped ends of the arms in engagement with an annular groove 26 in the tube 27; the arms are disengaged from the groove by an adjustable wedge member 29 whereupon the tube 27 is driven upwardly by the spring 78 producing a blow by the snap 12b on the rivet. Each actuation of the lever 21 effects a part rotation of the tube 27 by means of a link 35 and lever 36 carrying a roller 38 coacting with a ratchet wheel 41 splined to the tube. Lever 21 is locked when the tube has completed a full revolution by a pawl 67 engaging a notch in the tube and is released preparatory to starting the next riveting operation by raising the lever 22 which pivots about the axis 43 and in addition to raising the guide part 13 of the snap by means of a pawl 46 engaging the head 48 of a rod 50 moving with the part 13 carries a stirrup 65 for lifting pawl 67 out of its'retaining notch. A forward extension 71 of lever 22 depresses a spring pressed fork 73 in the way of a stop 75 on the lever 21 permitting only sufficient movement of the latter to position snap 12b in the rivet until lever 22 is released.