baber/WOPTO huggingface dataset:
Patent GB-1510395-A (GB)
Title: Cam brake automatic slack adjusting mechanism
IPC: F16D65/60
Filed: 1976-02-04
Abstract: 1510395 Automatically adjustable brake actuators ROCKWELL INTERNATIONAL CORP 4 Feb 1976 [3 March 1975] 04314/76 Heading F2E On application of the brake by lever 40 a link 61, 55 causes a plunger 51 to move axially when the application stroke is excessively long and a spring-loaded detent 71 co-operating with threads on the plunger rotates the latter during the return stroke to effect stroke adjustment. The link is connected to a piston 54 movable between abutments in the plunger interior with lost-motion d. The threads of detent 71 are buttressed and the actuating stroke must be greater than d plus the movement necessary for a plunger tooth to ride over a tooth of the detent before adjustment will occur on the return stroke. The plunger is splined to the shaft 46 of the conventional worm 45; the output shaft 19 of the worm gear 74 effects rotation of the actuating cam of a drum or disc brake.
Patent GB-539444-A (GB)
Title: Improvements in electrical networks
IPC: H03H7/01
Filed: 1940-03-08
Abstract: 539,444. Impedance networks. STANDARD TELEPHONES & CABLES, Ltd., and JACOBSEN, B. B. March 8, 1940, No. 4361. [Class 40 (iii)] A band-elimination filter comprises two or more sections of the form shown in Fig. 2,.or its equivalent shown in Fig. 8, the resistance r being inherent in the inductance L and the resistance y being chosen to give infinite attenuation at a certain frequency. Since the value of the inductance L depends to some extent on the current therethrough, the first section is dimensioned to give maximum attenuation at the desired frequency for the maximum input current it is likely to receive, while the second and any succeeding sections are correspondingly adjusted for the lower input thereto. In addition the discrimination effect is improved by a series resistance Rs, Fig. 2, or a shunt resistance RSH, Fig. 8, at the junction of two sections in order to bring about a reflection loss at that point. To prevent the impedance of the filter of Fig. 2 becoming too high at low frequencies, a shunt resistance may be connected to the mid-point of Rs, or a pair of shunt resistances may be bridged across the terminals. Fig. 9 shows a modification employing one section of each of the types used in Figs. 2, 8, with both series and shunt resistances Rs, RSH, such that their product is equal to the square of the terminating resistance.
Patent GB-708575-A (GB)
Title: Improvements in or relating to hydraulically actuated clutches and brakes
IPC: F16D48/02
Filed: 1952-02-20
Abstract: 708,575. Hydraulic brakes. STOECKICHT, W. G. Feb. 20, 1952 [Feb. 21, 1951], No. 4455/52. Class 103(1) [Also in Group XXIV] A hydraulically actuated clutch or brake (e.g. a band or shoe brake), particularly for motor vehicle change-speed and reverse gears controlled by braking individual gear members or by coupling such gears together, is shown as a multi-disc clutch 4 for connecting driving and driven shafts, 1, 2 and comprises a pump 9 subjecting the hydraulic medium to a definite maximum pressure, the device being characterized by a plurality of cylinders such as 14, 17, containing pistons 15, 18 displaceable against springs 16, 19, connected to the pressure pipe of the pump, the stresses of the springs with the cylinders filled counterbalancing the delivery pressure of the pump when the clutch or brake is not actuated, but the forces exerted by the springs upon the pistons with the cylinders empty differing, the cylinder 14 being in open communication with the pressure pipe, while the other cylinder 17 (or cylinders) is/are connected with the pressure pipe through a non-return valve 22 and through a controlled valve 23. The valve 23 is provided with narrow and wide grooves 24, 25 which can be disposed opposite to a port 21; in the'form shown the spring 16 has a steep characteristic, so that with the cylinder 14 empty it exerts but little pressure on its piston, and the spring 19 has a flat characteristic. If, when the cylinders are charged, a control valve 12 is opened to admit pressure fluid to the clutch or brake while the valve 23 remains closed, the piston 15 moves downwardly to engage the clutch, &c. gently; if the narrow groove 24 is opposite to the port 21, both pistons move to engage the clutch &c. more rapidly, and if the broad groove 25 is opposite to the port 21 prior to the opening of the valve 12, the fluid from the cylinder 17 gives a fierce engagement of the clutch &c. As used for the changespeed gear of a motor vehicle, the smoothness of the engagement can be controlled in dependence of the engine torque by the setting of the accelerator or carburettor throttle, or of the throttle valve or injection pump of the engine, or by the pressure in the inlet manifold.
Patent GB-449631-A (GB)
Title: Improvements in or relating to plug and socket connectors for electric circuits
IPC: H01R13/453
Filed: 1935-02-12
Abstract: 449,631. Plug couplings. ARNOLD, C. L., and DOWSETT, R. W., and MK. ELECTRIC, Ltd., Wakefield Street, Edmonton, London. Fab. 12, 1935, No. 4495. [Class 38 (i)] A socket fitting has a protector 8 that covers the supply sockets 2 and is moved in a plane by the earthing-pin 9a after it has entered its socket 3 so as to uncover the sockets 2. The projection 6a enters the socket 3 below its entry end and a guide 6b slides in holes in the socket 3 and in a plate 4a attached thereto, a spring 7 acting to keep the protector normally in the position shown. In modifications the sliding protector is furnished with a pair of limbs guided on parallel rods and interengaging with a similar pair of fixed limbs supporting the rods, springs being inserted between the limbs, or it may be guided in a channel in the base or in a cap thereon.
Patent GB-372418-A (GB)
Title: Improvements in and relating to slide valves
IPC: F16K3/18
Filed: 1931-02-13
Abstract: 372,418. Slide or gate valves. ARMSTRONG, J. J. V., 12, Church Street, Liverpool.-(Seiffert & Co. Akt.-Ges., F.; 13, Oberwasserstrasse, Berlin.) Feb. 13, 1931, No. 4524. [Class 135.] A double-faced slide or gate valve is formed with tubular or annular sleeve closure members 12 which are slidably mounted on tubular extensions 10 of the valve member. The closure members 12 are advanced and withdrawn by tubes 18 which are axially displaceable by eccentrics 22 operated through links 28 from the valve spindle 32 in the act of lowering and raising the valve. Rollers 44 on the eccentrics move along guides 46 in the casing during the lowering action and prevent the outward thrust on the tubes 18 until the valve registers with the seating, whereupon the rollers 44 pass into a curved guide allowing rotation of the eccentrics, and the consequent axial thrust outwards of the tubes 18. Packing 34 ensures a tight joint on the tubular extensions. Hooked members 36 engaging a groove in the parts 12 keep the parts in assembly and an extension 40 enters a groove 42 in the valve seating in the closed position and prevents the opening of the valve before the withdrawal of the tubes 18. The joint between the parts 12 and the tubular extensions 10 may be made by means of flexible diaphragms or corrugated tubes. A divided bridging pipe may be arranged to produce a straight connection between the inlet and outlet passages when the valve is raised to its open position.
Patent GB-1025152-A (GB)
Title: Preparation of organic esters of polysaccharides
IPC: C08B31/04
Filed: 1963-02-04
Abstract: A polysaccharide is esterified by treating with one or more carboxylic acids in the presence of an organic sulphohalide and an organic tertiary base.  Specified polysaccharides are cellulose, starch, amylose, amylopectin, dextrin, dextran, agar, gum arabic, pectin, alginic acid, xylan and partial substitution products thereof, e.g. partial ethers and esters.  Specified sulphohalides are p-toluene, sulphochloride, o-toluene sulphofluoride, benzene sulphochloride, benzene 1,3 - disulphochloride, b  - naphthaline sulphochloride and methyl sulphochloride.  Specified carboxylic acids are acetic, propionic, palmitic, benzoic, oxalic, succinic and phthalic acids. Specified tertiary bases are pyridine, dimethyl aniline, diethyl aniline, trimethylamine, and triphenylamine.  The reaction may be carried out by heating, e.g. at 60-100 DEG  C., a mixture of the components.  The ester may be made in solution or suspension depending on whether a solvent or a precipitant for the end-product is present.  Formed articles, e.g. cellulose fabrics, may be superficially esterified by passing the fabric through a bath containing reaction mixture.
Patent GB-487518-A (GB)
Title: Improvements in or relating to plant pots or containers
IPC: B60C7/14
Filed: 1937-02-15
Abstract: 487,518. Artificial leather. AVERY, H. C. Feb. 15, 1937, No. 4551. Convention date, Feb. 27, 1936. Drawings to Specification. [Class 96] [Also in Groups I and XVII] The wall structure of porous pots &c. for seedlings &c. is composed mainly of felted leather fibre, e.g. from scrap leather, e.g. sheeted on a paper-making machine into a board. The leather may be disintegrated dry or wet by impact machines &c. By adding lime &c. the acid in the leather may be neutralized and the material made suitably porous for ultimate disintegration after the pot has been embedded in the soil. Wool, hair, mineral wool or asbestos, may be added in relatively small quantities. Insoluble or soluble fertilizers such as ammonium sulphate and sodium nitrate, may be added to the disintegrated leather or applied in aqueous solution to the finished pots.
Patent GB-742403-A (GB)
Title: Improvements in or relating to wound clips, a rack for holding a stack of wound clips, and an extractor for removing said wound clips
IPC: A61B17/30
Filed: 1953-02-19
Abstract: 742,403. Surgical clips. TECHNICAL OIL TOOL CORPORATION. Feb. 19, 1953 [March 24, 1952 ; Oct. 13, 1952], No. 4672/53. Class 81(2). A wound clip comprises a strip of thin deformable material having a central bowed portion and fleshengaging prongs projecting from the ends rearwardly open notches of substantial width being provided adjacent the clip ends for the engagement of the jaws of an extractor device to spread said ends apart and release said prongs. The ends 41 of the clip 31 are bent backwardly to form grooves 42 for the engagement of a clip extractor device. Prongs 43 are formed from the material of the clip leaving complemental openings 44 and are laterally offset with relation to prongs 43 at the other end 41 of the clip 31. Clips 31 are stacked in front-to-back relationship on a rack 50 which comprises a U-shaped spring rod having an enlarged head 52 and hook-shaped flanges 53 at the free ends of parallel side legs 51. The rack 50 is threaded through elongated openings 45 in the clips 31 so that the head 52 bears against the front of the leading clip 31. A stack of clips 31 on the rack 50 is inserted in an opening at the rear of an applicator 30, the rack then being withdrawn from the applicator through a forward opening so that the clips are positioned inside the applicator for use. A plunger 36 and spring 37 are then inserted to hold the clips in position as they are used. The applicator is provided with forcep arms 32 having inturned jaws 33 which bear against the bent back portions of the clip ends 41. Lugs at the forward end of the applicator 30 prevent the inadvertent escape of clips. Clips 31 are applied to a wound by placing the forward end of the aplicator 30 over the flesh at the edges of the wound and pressing the jaws 33 towards one another so that the clips are bent to a U-shape, the prongs 43 penetrating the flesh. The clips 31 are loosened or opened for removal by an extractor device comprising jaws 62, Fig. 9, having arcuate edges 64 secured to crossed members 60, 61. On pressing the members 60, 61 towards one another, the jaws are separated so that when engaging grooves 42 of a clip 31, the clip ends 41 are separated for loosening or removal as desired. An alternative extractor device, Fig. 12, comprises arms 70, 71 joined by rivets 72 and preformed so that their free ends are normally apart. In use, the arms 70, 71 are pressed towards one another to engage the grooves 42 of a clip 31 so that on relaxing the pressure the clip ends 41 are moved apart to release the clip 31. Specification 736,882 is referred to.
Patent GB-198019-A (GB)
Title: Improvements in ladders
IPC: E06C1/56
Filed: 1922-02-17
Abstract: 198,019. Bryant, F. J. Feb. 17, 1922. Ladders. - The rungs of a flexible ladder are made of wood of comparatively large section to provide a good hand-hold, and are secured in a rigid manner to the chain sides by means which keep them from splitting and cracking at the ends. The ends of the rungs a are reduced in section, and the holding links of the chains may be expanded at n<x>, Fig. 5, or the ends of the rung shaped to be received by the ordinary chain links. The joint is made by wear-resisting rings m on each side of the chain link, and a cap p secured by a screw q which passes some distance into the rung end, Fig. 4. Alternatively, a metal ferrule may be placed on the rung ends, and the chain secured as before by a cap and screw. Where discs are provided on the rungs to keep the ladder away from a wall, these discs may constitute one of the wear-resisting rings. In another method of forming the joint, the wear-resisting rings and the chain link are held on the rung ends by a U-band secured by a cross-bolt through the rung. The upper rung is formed of metal and has large discs 3 on its ends so that in the event of a breakage of one of the main supports, the top rung is not stripped and the ladder will continue to be supported.
Patent GB-178251-A (GB)
Title: Improvements relating to pianofortes and the like
IPC: G10C1/00
Filed: 1921-02-11
Abstract: 178,251. Squire, A. W. Feb. 11, 1921. Pianoforte keyboards, cases, and actions. - A detachable keyboard of a pianoforte or the like cannot be removed until each note-action has been adjusted clear of the keys. The keyboard. cheeks 1 are provided with projecting pins 3 which pass through slots 4 in blocks 5 and are looked by vertical wedges 9 passing through slots 8 in the pins. The wedges cannot be reached for removal prior to withdrawing the keyboard, until a lever 12 pivoted at 13 and carrying a lug 16 is raised. This lever, by acting on the half-blow rail 15, moves the hammers towards the strings and consequently the note actions clear of the keys, and is held raised by a spring catch. The pin 3 is secured by a plug p engaging a cut-away part of the pin. The columns 19 may be withdrawn with the keyboard, latches having inclined faces to engage behind the heads of bolts carried by the columns being first disengaged. In this case a pivoted strut may be provided to form, with thecolumns, a support for the detached keyboard.
Patent GB-908625-A (GB)
Title: Improvements in or relating to tractor-implement combinations
IPC: A01B3/46
Filed: 1961-02-10
Abstract: 908,625. Agricultural implements. INTERNATIONAL HARVESTER CO. Feb. 10, 1961 [April 11, 1960], No. 5020/61. Class 6(1). [Also in Group XXXI] A conventional tractor-power-lift system comprises lift arms 20, 21, Fig. 3, operated by a ram 34 and connected by links 18 and 19 to socket members 17 pivoted at 16 to the lower links 14. An implement frame, to which is attached in diagonal arrangement, groundworking members 27, 28, is provided with arms 29 pivoted to brackets 33 and engaged within the sockets 17 wherein they are retained by latches 30, A shoulder 40 is provided on the links 14 to abut the sockets 17 when raising and to allow relative movement between the arms 14 and sockets 17 in the operational position, or the sockets may be secured to the links 14 by a pin 41. At the rear end of the frame 26 is pivotally connected, at 52, a mounting member 50 in which is pivoted a caster wheel 43. An arm 54 is secured to a member 51 of the mounting member 50 and is connected by a link 55 to a bell crank lever 56, 61 pivoted towards the forward end of frame 26, one arm 61, of the bell crank lever being connected by a chain 62 to an extension arm 63 secured to the lift arm 20, whereby, when the implement is raised from the operational position, Fig. 1, to the carrying position, Fig. 2, the lift arms acting on the implement members 29 at the forward end of the implement frame, the rear end of the implement is also raised.
Patent GB-452121-A (GB)
Title: Improvements in incandescent electric lamps
IPC: H01K9/04
Filed: 1935-02-16
Abstract: 452,121. Two-part couplings. DEZSOE, Z., 13, Valentines Road, Ilford, Essex. Feb. 16, 1935, No. 5073. Addition to 445,489. [Class 38 (i)] The contact arrangement of the multiple filament electric lamp described in the parent Specification is adapted for use with screwthreaded lamp caps by connecting the common leading- in wire 11 to the metal shell 10 of the cap, the other leading-in wires 12, 13 being connected to their respective socketed contacts 1,2.
Patent GB-582449-A (GB)
Title: Improvements in water-cooling towers
IPC: F28C1/12
Filed: 1944-03-20
Abstract: 582,449. Cooling-towers. MOUCHEL & PARTNERS, Ltd., L. G., and GUERITTE, A. T. J. March 20. 1944, No. 5158. [Class 64 (i)] A cooling- tower b is provided with a system of pipes d and outlets, e.g., sprayers e of spherical. hemispherical, ellipsoidal o r other form, for bringing, from a conduit f around the exterior of the tower to suitable points near the top of the air inlets all around the tower, a part of the hot water entering the tower and spraying it in that part of the cooling stack which it is desired to protect against the formation of ice. In the form shown, pipes d depend from an annular pipe a, which is fed from the conduit f and has sprayers e. Valves i control the flow of water to the pipes d. In a modification, hot water from an annular conduit around the tower passes through vertical pipes into an annular pipe arranged on the outside of the tower just below the top of the air inlet. Branch pipes with sprayers at their ends extend inwardly from the annular pipe, which may be divided into segments by end caps. The flow of water into the vertical pipes is controlled by sluice valves. In another form, the annular pipe is dispensed with.
Patent GB-748246-A (GB)
Title: Improvements in domestic cleaning devices
IPC: A47L17/00
Filed: 1954-02-22
Abstract: 748,246. Reservoir pad's. MIHAILIDE, S. Feb. 22, 1954 [March 7, 1953], No. 5193/54. Class 19 [Also in Group XVII] A reservoir cleaning device comprises a reservoir in the form of a tube bent at an obtuse angle with a sponge or like soft pad 15 .held in a perforated screw - closure at one end and a screw-cap 16 at the other end. As shown, the pad which may be of natural or rubber sponge is supported on an apertured disc 14 and the tube which may be made of a plastic material is ribbed circumferentially and/or longitudinally and formed to provide a scraper 19.
Patent GB-537888-A (GB)
Title: Improved means for rendering kerbs and other objects on the highway more visible
IPC: E01F9/053
Filed: 1940-03-20
Abstract: 537,888. Road-traffic markings. MACNAB, J. March 20, 1940, No. 5208. [Class 3 (ii)] A device for rendering kerbs and other roadside objects visible comprises two members a, b secured together by spot-welding &c. The member a has a turned-over channel c at the top which protects the member b from rain &c. The member b has vertical, triangular, rounded, square &c. corrugations which reflect light. The whole may be curved to fit round posts &c. and is attached to the support by nails &c. d or may be permanently secured to kerbs during manufacture.
Patent GB-248552-A (GB)
Title: Improvements in luffing cranes
IPC: B66C23/10
Filed: 1925-02-25
Abstract: 248,552. Wardale, H., and Snowdon, R. Feb. 25, 1925. Jib cranes.-Relates to cranes of the kind in which the jib is luffed inwards by the downward movement of a pivoted counterbalanced lever 19, 23 connected by a link 21 to the jibhead, the lever being actuated by means such as a link 25 and crank disc 24. To ensure horizontal travel of the load while luffing, the load rope 5 is passed round pulleys on fixed and movable shafts 7, 10, the shaft 10 being moved in fixed horizontal guides 12 by a link 15 connected with the jib. The aro a struck from centre c shows approximately the path which would be traversed by the load in the shaft 10 remained in the position shown. The compensating gear is arranged so that the triangle 7, 10, 10<1> is similar to the triangle d, c, d'. The jib is balanced by a weight 16 connected with the slide-block 11 carrying the movable shaft 10.
Patent GB-576178-A (GB)
Title: Improvements in and relating to the pressing of shapes in thermo-setting or thermo-plastic materials
IPC: B29C43/00
Filed: 1943-04-02
Abstract: <PICT:0576178/IV/1> A method of pressing preformed shapes made from paper, fibre, linen, &c. incorporated with thermoplastic or thermo-setting material consists in immersing the shapes in mercury and applying pressure and heat to the shapes through the medium of the mercury. The pressure may be applied to the mercury mechanically, or may result from the difference in the heat coefficients of mercury and the material, e.g. steel, of the container in which the shapes are disposed during the pressing operation, or both these means of applying pressure may be employed, as by using the apparatus shown, which comprises a container 1 which has a heating and cooling jacket 3 and is connected to a cylinder and piston 9, 10 for applying pressure to mercury in the container 1.  The piston may be subject to the action of a spring or adjustable weights or fluid pressure, and may, in conjunction with a scale, indicate the pressure.  The shapes are confined in wire cages 19 secured to the container, which is filled with mercury through a funnel 12.  The container may have a pressure relief valve.  The heated shape may be allowed to cool or is artificially cooled as by means of the jacket 3 or by means of cooling conduits in the mercury.  The shapes may be preformed in moulds having an open side or sides, the mould, with its preform, being then immersed in the mercury. Tubes may be made by using a core.  The Provisional Specification states that liquid other than mercury may be used.
Patent GB-239119-A (GB)
Title: Improvements relating to billiard marking boards
IPC: A63D15/20
Filed: 1925-02-28
Abstract: 239,119. Peake, W. Feb. 28, 1925. Addition to 225,444. Scoring and marking apparatus. -The billiard-marking board described in the parent Specification is modified by the provision of mechanism whereby the indicating discs or rings are actuated by hand-operated press buttons. As shown, a hand-operated press button B, situated at the end of travel of one of the sliding pointers, is connected through a rod C' and bell-crank lever C to a slidable member N' adapted to engage and rotate a toothed wheel W<1> fixed to the twenties disc M'. At every fifth movement of the disc M', a stud J on the disc engages a cam surface J<3> on a member N, depressing the member against the action of a spring R and causing it to engage and rotate a toothed wheel attached to the hundreds disc M. A thousands rings M<3> mounted on rollers E<1> is disposed around the disc M spaced studs S<3>, A lever A is connected by hinges A<4> to a turn-table pivoted on a pedestal E. The lever A normally projects between two of the studs S<3>, as shown in broken lines, in which position it is adapted to be engaged by a stud S on the disc M, once. in every revolution of that disc, and thereby rotated to the position shown in full lines. In rotating, the lever engages one of the studs S<3> and rotates the ring M<3>, a projection A<3> on the lever preventing overthrow. When the stud S reaches position S', the lever returns to its original position under the action of a spring T, a bevelled portion Z formed on the underside of the lever allowing it to ride over the stud S<3>, and a spring L<3> causing it to drop into position. A pawl P' is provided to prevent backward rotation of the ring. In a modification, the spring T m replaced by a spring T1@ which acts on a lever L engaging two lugs L<2> on the lever A, and tends to maintain that lever in its normal position. A ring K<3> connected to the member N may be provided for zeroizing purposes.