baber/WOPTO huggingface dataset:
Patent GB-1394926-A (GB)
Title: Prosthetic joint for total knee replacement
IPC: A61F2/38
Filed: 1973-06-12
Abstract: 1394926 Prosthetic knee joints ZIMMER MFG CO 12 June 1973 [23 June 1972] 27186/ 73 Heading A5R [Also in Division E2] A joint prosthesis comprises first and second members 13, 14 having convex and concave articulation surfaces 24, 26 respectively, each member being suitable for attachment to an appropriate end of one of a pair of jointed skeleton elements and the two members being coupled by a stud 16 which is pivotally connected to the first member by a ball and socket 17 and to the second member by a pin 18. In a knee application one joint member 13 attached to the femur has a pair of convex involute surfaces 24 in contact with concave surfaces on a second member attached to the tibia. A slot 32 opening between the convex surfaces proceeds to a socket 17 and receives the stud 16 which passes diametrically through a ball 29 in the socket. A recess 29a is formed in the ball to receive a head 16b at one end of the stud the other end of which is threaded. The stud passes through a channel 21 in the second member 14 to engage in a threaded transverse hole in the pin 18 pivotally mounted in bushes (19, 20) Fig. 1 (not shown) in the second member. The shafts 22, 23 of the prosthetic members are roughened at 22a 23a to provide secure connection within the skeleton elements. A stop 28 extends from the tibial member within the slot 32 in front of the stud. Members 13, 14 are cast in a chrome cobalt alloy, stainless steel or a titanium alloy. The ball 29 and the bushes (19, 20) are made of high impact plastics e.g. polyethylene and an insert (42) of this material fits into recesses (36, 37) Figs. 7 and 9 (not shown) in the plateau end of the tibial member. A recess (40) receives an insert of polyethylene (43) Figs. 14 and 19 (not shown) to form a contacting face 27 for the stop 28. A groove (53) may be formed in the wall (52) Figs. 22 and 23 not shown to receive the patella tendon. The rear slot (55) tapers upwards so that the stud (67) is closely restrained therein with the joint bent more than 20‹ but is allowed 15‹ of transverse movement when extended.
Patent GB-645997-A (GB)
Title: Improvements in or relating to devices for dispensing tape
IPC: B65H35/00
Filed: 1948-10-29
Abstract: 645,997. Roll-holders. CORFIELD, R. H. Oct. 29, 1948, No. 28156. [Class 18] A detachable plate 8, extending between the arms 1 of a U-shaped frame to hold them against lateral movement when a roll of tape is mounted on inwardly directed bosses 3 formed in the arms, is provided with a slot 13 through which the tape is withdrawn. The forward edge of the slot is beaded as at 14 to provide a smooth surface over which the tape is drawn. The plate may either be formed to slidably engage beading 7 on the upper edges of the arms 1 or to clip over these edges. The forward edge 12 of the plate is serrated to form a cutter for severing the tape. The wall 2 connecting the lower edges of the arms may be formed integrally with the arms or be detachable in a manner similar to the plate 8. Alternatively the connecting wall may be constituted by flanges extending inwardly from each edge of the arms which flanges are hingedly connected by a hinge pin or by tongue and slot connections, or it may be constituted by a flange extending inwardly from one arm only the free edge of the flange being hingedly connected to the edge of the other arm. Specification 645,596 is referred to.
Patent GB-1197787-A (GB)
Title: Frost Imaging Process.
IPC: G03G5/022
Filed: 1967-06-19
Abstract: 1,197,787. Frostable electrophotographic plate. RANK XEROX Ltd. 19 June, 1967 [21 June, 1966], No. 28161/67. Heading H1K. [Also in Division G2] Thermoplastic insulating materials which are not frostable when in the form of layers of less than 10Á thickness are converted to frostable materials in layer form by mixing said thermoplastic material in a fluid state with an additive which has a higher viscosity than said thermoplastic material at its softening temperature, and forming a film from said mixture. The film may be coated on a conductive, e.g. aluminium or photoconductive, e.g. selenium base or may have a photoconductor incorporated therein. Specified thermoplastic materials include methyl - styrene - vinyl toluene copolymer, poly-α-methyl-styrene and poly-diphenyl siloxane. Specified additives are phenol formaldehyde resins, polystyrene resin, " Staybelite " (Trade Mark) ester and styrene butyl methacrylate copolymer. Specified photoconductors are 2,5-bis-(p-amino phenyl)-1,3,4- oxadiazole and a mixture of triphenylamine with 2,4,7-trinitro-9-fluorenone. The frostable layer is imaged by imagewise charging or where the material comprises a photoconductor uniformly charging and imagewise exposing to light and then softening the layer by heat or solvent treatment.
Patent GB-348991-A (GB)
Title: Improvements in or relating to dynamos
IPC: H02K23/66
Filed: 1930-09-23
Abstract: 348,991. Variable - speed generator systems ; dynamo - electric machines. BOSCH AKT.-GES., R., 4, Militõrstrasse, Stuttgart, Germany. Sept. 23, 1930, No. 28356. Convention date, Sept. 27, 1929. [Classes 35 and 38 (iv).] Commutators and collecting rings; terminals and accessories, arrangement on machines.-A dynamo subject to reversal of rotation is given a constant polarity by means of a nut c of insulating material mounted on a screw b of quick pitch on its shaft a and operating between abutments so that it occupies one of two positions according to the direction of rotation but continues to rotate with the shaft. Slip rings d, e, f are mounted on this nut, d, i being in conducting connection, and brushes h, i and k, l engage them in such posit ons that the connections between the armature terminals h, i and the battery circuit terminals k, l are reversed as the nut is moved. The field winding may also be connected to the terminals k, l. The field circuit may be reversed in place of the armature circuit.
Patent GB-1517212-A (GB)
Title: Device for heat sealing seams of thermoplastic overwraps on packets
IPC: B65B51/10
Filed: 1975-07-04
Abstract: 1517212 Seaming non-metallic sheet material GD SpA 4 July 1975 [10 July 1974] 28378/75 Heading B5K The subject matter is identical to that disclosed in Specification 1,517,211, but the claims relate to a heat sealing member (48) movable by a support (47) into and out of contact with a seam to be sealed, there being provided a control cam (38) for reciprocating the support (47) in synchronism with the movement of an intermittently-rotatable wrapping wheel (7) during each dwell period thereof, and a follower roller (40) to co-operate with a first track (39) on the cam (38) during the highest operating speed of the wheel (7) and with a second track (39<SP>1</SP>) during the lowest speed of the wheel (7), the roller (40) being selectively shiftable from one track to the other in response to changes of the speeds to keep the total time of contact of the member (48) with the seam substantially constant.
Patent GB-257454-A (GB)
Title: An improved sink trap fixing
IPC: E03C1/264
Filed: 1925-11-11
Abstract: 257,454. Male, J. Nov. 11, 1925. Sink waste fittings.- A trap F is fixed to a sink by means of screws C passed through a flanged member A and the trap into a bridge B, and a screw D passed through the grating into the bridge. The member A is grooved in its upper surface.
Patent GB-1146792-A (GB)
Title: 7-hydroxy-coumarin derivatives and process for their production
Inventor: RITTER HEINRICH
IPC: C07D311/16
Filed: 1967-06-20
Abstract: 1,146,792. Coumarin derivatives. CASSELLA FARBWERKE MAINKUR A.G. 20 June, 1967, No. 28443/67. Addition to 1,014,053. Heading C2C. Novel coumarin derivatives of formula (wherein the two symbols X represent halogen atoms or nitro groups, or one X is a halogen atom or nitro group and the other X is hydrogen, R 1  is a heterocyclylalkyl or optionally N-substituted aminoalkyl radical, R 2  is alkyl or aryl, and R 3  is aminoalkyl (optionally N-substituted), alkenyl, alkoxycarbonylalkyl, or carboxyalkyl) are prepared by reaction of a compound of formula R 3 Hal with the corresponding 7- hydroxy coumarin, the latter being prepared by halogenation or nitration of the corresponding 7-hydroxy-5,6,8-unsubstituted coumarin. Pharmaceutical compositions suitable for oral or parenteral administration comprise a compound of Formula (I) above or hydrochloride thereof together with a conventional carrier. The active ingredients are characterized by coronary vasodilatory action.
Patent GB-732031-A (GB)
Title: Improvements relating to vacuum brake apparatus for railway and like vehicles
Inventor: MARSH GERALD CRANTON
IPC: B60T13/46
Filed: 1953-10-15
Abstract: 732,031. Vacuum brake apparatus. GRESHAM & CRAVEN, Ltd. July 29, 1954 [Oct. 15, 1953], No. 28451/53. Class 103 (1). In a vacuum brake apparatus for railway and like vehicles in which an exhauster produces vacuum in the exhaustion pipe communicating through an automatic isolating valve with a vacuum relief valve and with the vacuum side of the locomotive brake cylinders, the exhaustion pipe also communicates with the train pipe via the driver's brake valve so that under normal bracking application, the relief valve operates to keep the exhaustion pipe vacuum below a predetermined maximum (e.g. 20 or 21 inch mercury) and under emergency brake application the isolating valve closes when the train pipe vacuum falls below a predetermined value (e.g. 5 inch mercury) to raise the vacuum at the vacuum side of the locomotive brake cylinders in order to increase the braking power of the locomotive. In the arrangement shown in Fig. 1, the usual brake valve a controls the connection between the exhaustion pipe b leading to the exhauster c and the train pipe d which has a connection e to the locomotive brake cylinders f. The pipe b has connections via the non-return valve g with the pipe h which leads to the vacuum side of each locomotive brake piston in its cylinder f and to the vacuum chamber i. The pipe b is also connected with the automatic isolating valve k and the vacuum relief valve m via the connection j (Fig. 2). The automatic isolating valve k is normally held open by spring n so that the upper side of the diaphragm o is in contact with the pressure in the pipe j and communication is established between the pipe j and the vacuum relief valve m which prevents the vacuum rising above 20-21 inch mercury by admitting air to the system. Pipe p connects the underside of the diaphragm o with the train pipe d. In a normal service brake application, the isolating valve k remains open and the vacuum in the pipe b and in the vacuum side of the brake operating cylinders f is maintained at 20-21 inch mercury. When an emergency application is made and the vacuum in the train pipe d falls below 5 inches mercury, the pressure on the lower side of the diaphragm o overcomes the pressure of the spring n and the valve k shuts; thus isolating the relief valve m from the pipe j. The exhauster c can now increase the vacuum in the pipe h and at the vacuum side of the pistons in the locomotive brake cylinders f to give increased braking power for heavy or emergency applications. When the brakes are released by operation of the brake valve a, the vacuum in the train pipe d is restored and the isolating valve k is opened, allowing the vacuum relief valve m to reduce the high vacuum at the vacuum sides of the pistons of the locomotive brake cylinders f to a normal figure.
Patent GB-1509156-A (GB)
Title: Large bale agricultural baler
IPC: A01F15/14
Filed: 1976-07-08
Abstract: 1509156 Baling machine CLAAS MASCHINENFABRIK GmbH GEBR 8 July 1976 [9 July 1975] 28494/76 Heading B5F The tying needle 5 in a large-bale baler is protected against bending during operation by members 6 movable with and in the same general direction as the needle. A pivoted member 6 on each side of each needle 5 crosses the feed passage 4 slightly ahead of the needle and just behind the conveying and compressing fingers 3, thus both protecting the needle and assisting feed of material supplied by a rotary pick-up (2), Fig. 1 (not shown). Rocker arms 11 conveying the needles 5 are operated by a crank shaft and connecting rod 12. The arms 11 are connected to the pivoted members 6 by levers 8 and links 9.
Patent GB-601954-A (GB)
Title: Improvements in and relating to regulating devices for maximum-speed limiting means for internal combustion engines
IPC: F02D9/00
Filed: 1939-10-25
Abstract: 601,954. Speed governors. SOC. ANON. SOLEX. Oct. 25, 1939, No. 28674. Convention date, Dec. 23, 1938. [Class 57] In speed-regulating devices for internalcombustion engines comprising an unbalanced valve arranged in the induction pipe and urged into open position by a spring, the tension of the spring, and consequently the permitted speed of the engine, can be increased by means under control of the accelerator-pedal, gearlever, or like member. The device shown is similar to that described in Specification 431,293 and comprises an unbalanced valve 1 co-operating with abutments 4<1>, 4<2> on a lever 5 connected to the accelerator-pedal, a spring 3 urging the valve into open position, and a spring-adjusting means comprising a sleeve 19 geared to a lever 16 which is connected by a cable 14 to a hand-lever. The cable 14 is now provided with a slidable sleeve 20 abutting on a spring 12<1> and a lever 25 pivotally connected to a rod 27 which passes through a pivoted stud 29 on the lever 5 and has a collar 30 for engaging the stud. When the accelerator-pedal is depressed abnormally, the stud engages the collar, the lever 25 displaces the sleeve 20, the tension of the spring 3 is increased, the valve is fully opened, and the permitted maximum speed of the engine is increased. The spring 12<1> may be replaced by a lighter spring and a spring-ball which normally engages a groove in the sleeve 20. The rod 27 may be connected to a lever abutting on a rod in connection with the spring 3, the arrangement enabling the spring-tension to be increased without movement of the lever 16 and cable 14. In another arrangement, the gear-lever or other gearmember is connected, for instance by a cable, to the lever 16 or equivalent member. Specifications 462,429 and 479,533, [Group XXXIV], also are referred to.
Patent GB-1459343-A (GB)
Title: Tickets for use in lotteries games of chance and the like
IPC: A63H33/16
Filed: 1974-06-28
Abstract: 1459343 Lottery ticket TICKET SEAL Ltd 30 April 1975 [28 June 1974] 28694/74 Heading A6H A lottery ticket comprises two sheet-sections 12, 14 laminated together and lines of weakening 16 in the ticket to define a blank 18 which can be torn away, the blank having fold lines so that it will stand up as a three-dimensional walled object bearing previously-hidden information on at least some of the walls. A glue or locking (24) tab enables the sleeve to be held closed. A second lottery ticket may provide a similar or smaller sleeve so that it may fit inside the first and enable the variation of order of numbers or colours printed on the faces of the resulting cube. The blank may form a complete cube or some other solid figure.
Patent GB-936673-A (GB)
Title: Improvements in or relating to apparatus for the conveying and mixing of concrete or other materials
Inventor: HARRISON KENNETH JAMES
IPC: B28C9/00
Filed: 1960-08-19
Abstract: 936,673. Concrete mixers. LINER CONCRETE MACHINERY CO. Ltd. Aug. 21, 1961 [Aug. 19, 1960], No. 28728/60. Class 86. [Also in Groups XVIII and XXX] A hopper is discharged by a conveyer driven by a hydraulic motor, in combination with a mixing machine, the control means of the hydraulic motor is so situated that it may be operated by a man at the mixing machine and/or operating a scraper shovel. As shown in Fig. 1, cement is contained in a silo 16 from which it is delivered by a screw conveyer 17 to a weighing and loading skip 11 which feeds the concrete mixer 10. The screw conveyer 17 is driven by an hydraulic motor 20 controlled by a solenoid valve 22 actuated by a push-button 23 mounted on the weigh batcher 14. The mixing drum is rotated by an hydraulic motor and the skip 11 raised and lowered by an hydraulic winch or ram. In a modification, Fig. 2 (not shown), the conveyer delivers to a weighing unit situated above the mixer and the pushbutton 23 is mounted on the mixer frame. In another embodiment, see Fig. 3, the push button 23 is mounted on the handle 28 of a scraper shovel by means of which aggregate is delivered to the loading skip. The push-button may alternatively be mounted near the path of the scraper shovel, or on the silo or conveyer if they are near that path. The conveyer hydraulic motor may derive pressure fluid from a pump driven by the mixer engine, or there may be a separate power pack of engine, pump and hydraulic motor. Electricity for the solenoid valve may come from a battery or from a generator driven by the mixer engine; the valve may be replaced by a manually operated valve mounted on the mixer, or may be actuated without physical connection by means of a radio or sonic beam. The mixer may be mounted on a vehicle chassis. Instead of being manually controlled, the conveyer may operate on a timed cycle to deliver a predetermined quantity to the mixing machine at each operation. Specifications 912,309, 926,848 and 936,674 are referred to.
Patent GB-800017-A (GB)
Title: Rotating thread cutting head for the cutting of conical and cylindrical screws
IPC: B23G5/08
Filed: 1954-10-06
Abstract: 800,017. Screwing die-heads. FOLL, C., FOLL, H., and FOLL, A., [trading as REMSWERK C. FOLL & SOHNE]. Oct. 6, 1954 [Oct. 6, 1953], No. 28758/54. Class 83 (3). A rotary die-head for cutting conical screwthreads comprises a body 73, Fig. 1, in which four dies 75 are interconnected so that movement of one causes similar movement of the others, the said one being engaged by a nut 36, Fig. 2, on a screwed-spindle 35 which is rotated to set the cutting diameter of the head. The spindle is carried by a fork 37 engaged by an eccentric 39 on a shaft 40 carrying a gear 43 driven via gears 55, 53, 52 by a toothed wheel 45 rotatable relatively to the head. Adjacent wheel 45 is a toothed wheel 44 integral with or fixed to the head, the two wheels meshing with gears 47, 48 which are interconnected and mounted in a fixed gear-box 7. Either the wheels 44, 45 or the gears 47, 48 have different numbers of teeth so that as the head is rotated, e.g. by an electric motor, wheel 45 turns relatively thereto and causes progressive opening of the dies. The head may be used to cut parallel threads by moving shaft 46 to disconnect gears 47, 48. If the head'is to be used solely for conical threads, gears 47, 48 may be replaced by a single gear. Specification 800,019 is referred to.
Patent GB-919425-A (GB)
Title: Improvements in or relating to a tape joint cement and method for preparing same
Inventor: SIROTA JULIUS
IPC: C08K3/00
Filed: 1961-08-09
Abstract: Sensibly dry tape joint cement compositions capable of being mixed with water to form a wet cement, are prepared by a method which comprises mixing a dry, inert, inorganic filler with a binder, the water in said binder being absorbed by the filler without any subsequent drying step, said binder being an aqueous dispersion of a hydrolysed polyvinyl ester of an organic acid or a hydrolysed copolymer resulting from the copolymerization of a vinyl ester of an organic acid and another polymerizable monomer, said hydrolysis product having a degree of hydrolysis of 50 to 100% and being at least 50% soluble in water at 20 DEG C., the amount of said hydrolysis product being at least 0,25% calculated as dry resin based on the weight of filler.  The binder may comprise a hydrolysis product of polyvinyl acetate or of a copolymer of vinyl acetate with vinyl chloride, ethyl acrylate, acrylic acid or a maleic half ester, or of a copolymer of vinyl butyrate with maleic anhydride.  The filler may be clay, dolomite, limestone, talc, mica, asbestos or silica.  The compositions may be mixed with water to form cements which may be used with paper tapes for sealing gaps between wall boards.
Patent GB-613929-A (GB)
Title: Improvements in or relating to spark plug insulators
IPC: H01T13/38
Filed: 1944-04-05
Abstract: A sparking-plug insulator comprises a ceramic body having at least 85 per cent by weight of zirconia or titania, together with either titania, aluminia and magnesia, or zirconia and magnesia, respectively.  The body is fired at a temperature to vitrify it, and long enough for it to have a hardness of 9 Moh when cool. Specification 585,217 is referred to.
Patent GB-830657-A (GB)
Title: Pest control compositions
IPC: C07F9/42
Filed: 1956-09-21
Abstract: Phosphonyl dihalides of the general formula X-R-POX2 in which R is an alkylene group having one to three C atoms and each X is chlorine or bromine are prepared by reacting phosphorus trihalide or mixed trihalide with the corresponding aldehyde.  In a typical example a -(chloroethyl)-phosphonyl dichloride is prepared by reacting acetaldehyde with phosphorus trichloride.ALSO:A Nemetocidal composition comprises an aqueous dispersion of a phosphonyl dihalide having the general formula X-R-POX2 in which R is an alkylene group having one to three carbon atoms and each X is chlorine or bromine preferably containing a wetting or surface tension reducing agent or the phosphonyl halide in admixture with a solid diluent.  Specified active compounds are (chloromethyl)-phosphonyl dichloride, Bromomethyl or chloromethyl phosphonyl dibromide, a -(chloroethyl) phosphonyl dichloride, a -(bromoethyl) phosphonyl dibromide, chloropropyl phosphonyl dichloride, b -(chloroethyl) phosphonyl dichloride b  - (bromoethyl) phosphonyl dichloride, (chloroisopropyl) phosphonyl dichloride, (bromoisopropyl) phosphonyl dibromide.
Patent GB-426920-A (GB)
Title: Process for the separation of hydrocarbons
IPC: B04B1/00
Filed: 1934-10-10
Abstract: <PICT:0426920/III/1> Hydrocarbons, which at chilling are precipitated in fluid hydrocarbons, are separated from the fluid by centrifuging in two or more stages in machines of the type shown.  The material is supplied to the tube 1 and the paraffin and like particles are deposited at the parts 4, 5; they are discharged from the bowl over the edges 6 and through the holes 7, 8.  The heavy solution passes between the liner discs 10, and through the channels 12 to the chamber 13 from which it is discharged over the exchangeable regulating disc 15.  The first stage of the separation produces a heavy solution free from paraffin, and a thin concentrate of low viscosity.  This concentrate is passed through a second machine, which may be without liner discs, for the second stage of the separation; if liner discs are used they have a large central hole. If the heavy solution obtained from this stage contains any paraffin, it is returned to the first stage separator.  It is only necessary to provide heaters for melting the paraffin in the second stage separators.  Liquid in which oil is easily soluble but paraffin hardly soluble, can be added to the concentrate obtained from the first stage to diminish the quantity of oil discharged with the paraffin from the second stage.