baber/WOPTO huggingface dataset:
Patent GB-829711-A (GB)
Title: Tray-propulsion devices for filter presses
IPC: B01D25/172
Filed: 1957-04-09
Abstract: 829,711. Filter-presses. CURZON, P. April 8, 1958 [April 9, 1957], No. 11453/57. Class 46. [Also in Groups XXX and XXXVII] A filter press has a reversible carriage 15 upon which is mounted an electric motor for driving the carriage along a girder by means of a sprocket engaging a chain, cylindrical housings 29 containing spring-urged plungers being provided for engaging the press-trays and moving them along the girder. In position A the carriage is moving to the left, and the leading housing 29 is prevented from swivelling by a locking-lever. Its plunger will presently rise, however, and ride over the abutment 35 of the first tray 36a, so operating a rocking lever to trip a reversing switch 38. The carriage will now move to the right and the now-trailing plunger will take the tray 36a with it, as shown at B. The leading plunger will then strike the abutment 35 on a previously moved tray 36b, or an abutment at the end of the press, and the plunger will rise and again trip the reversing switch. The carriage returns to the left as shown at C, the tray 36a being left behind since the trailing housing 29 swivels idly as the plunger passes the abutment on the tray. The trays are moved in the opposite direction by changing- over the locking-lever to lock the other housing. In a modification two shafts running parallel with the girder are provided with screwthreads of opposite pitch and are driven by a separate electric motor at one end. A rocking- lever mounted on the carriage has half-nuts at each end which are adapted to engage the lefthand or right-hand screw-threads respectively. This rocking-lever is actuated by the spring- urged plungers, as before, Fig. 4 (not shown). The trays may be linked together in groups, only one of a group being provided with an abutment.
Patent GB-1507364-A (GB)
Title: Shifting mechanism for a bicycle derailleur
IPC: B62M25/04
Filed: 1975-03-20
Abstract: 1507364 Change-speed chain gear SHIMANO INDUSTRIAL CO Ltd 20 March 1975 [3 Aug 1974 6 Aug 1974 6 Sept 1974 12 Oct 1974 23 Oct 1974 25 Feb 1975] 11570/75 Heading F2D In a chain-shift gear for a cycle wherein a shift member 9, carrying a guide sprocket 11a, swings on parallel links 5, 6, on a part 1b pivotal on a bracket 1 fixed to the cycle frame, the shift member 9 is located in operative positions, corresponding to the hub-mounted sprockets, by a detent 15 on one member engaging co-operating means 12 on another. As shown, the detent comprises a spring-loaded ball 15 on the shift-member 9 (or bracket part 1b) engaging a selected one of a series of coned recesses 13 in a plate 12 adjustably attached to the bracket-part 1b (or shift-member 9). In Figs. 8 and 9, not shown, the detent 15 is in a member (40) pivoted to one, 5, of the links, and adjustable against a spring (41) by a set-screw (42); whilst in Figs. 11 to 13, not shown, the detent 15 is on an L-shaped member (50) adjustably pivoted on one link 6, and engages recesses 13 in the other link 5. In Fig. 14, not shown, the ball detent 15 and recesses 13 are replaced by permanent magnets (15d, 131) of dissimilar polarity, and further magnets of the same polarity as the detent magnet may be arranged between the co-operating magnets (131). The shift member 9 is moved by a hand lever 33 through twin tension cables a, b, guided in a flanged fixed plate 16 having a fixed pin 17 engaging a notch in a plate 18, pivoting at 22 on the shift member 9 and attached at 19a, 20a to the cable ends.
Patent GB-379653-A (GB)
Title: Protective device or guard for knife spindles on machines of all kinds
IPC: B27G21/00
Filed: 1932-04-22
Abstract: 379,653. Machinery guards. GRIESBERGER, J., 11, Sch÷nholz, Reinickendorf, Berlin. April 22, 1932, No. 11573. Convention date, April 23, 1931. [Class 80 (iv).] In protective devices for wood planing and profiling and like machines with rotary cutters 2, of the type comprising a plurality of guard segments displaceable by the work, the segments 10 are individually guided in a dustproof housing 6, 7 and are returned to guarding position by counterweights 16 connected to them by wire ropes 14 passing over pulleys 13. The housing is secured by screws or welding to a member 4 bolted to the table 1, and is provided with curved guides 8, 9 respectively for the counterweights 16 and segments 10, which are of the cross section shown in Fig. 5. By guiding the segments on five faces, jamming due to obliquely-fed work is prevented. Movement of the parts distributes lubricating-oil containing in the housing, openings 17 in the guides 8 giving lateral passage to the oil. The pulley-spindle 12 is carried by terminal extensions of the member 4.
Patent GB-1174932-A (GB)
Title: Improvements in or relating to Radiographic apparatus for Examining Welds
Inventor: STEWART ROY
IPC: G01N23/18
Filed: 1966-03-16
Abstract: 1,174,932. Radiographic apparatus. UNITED KINGDOM ATOMIC ENERGY AUTHORITY. 13 March, 1967 [16 March, 1966], No. 11600/66. Heading H5R. An apparatus for the examination of annular end edge welds comprises means for supporting the object having the weld in a stationary position, a radiation source unit producing a narrow near-parallel beam of penetrating radiation, a container unit for radiation sensitive film, equipped with means for moving the film past an exposure aperture therein, means for mounting said units so that they can be moved together in a planetary manner bodily around the said object whilst disposed at opposite sides of said object in a radial plane which intersects the surface said object, the beam of radiation produced by the source being continually directed at the exposure aperture of the film container during movement, said means for moving the film being related to the means inducing the planetary motion so that moving the radiation source around the weld produces a linear record of it on the film. In Fig. 1, the object is cylindrical nuclear fuel can having two welded ends, and in this preferred embodiment the two welds are examined simultaneously by two radiological apparatuses according to the invention. The tube 1 is supported on a stationary stand 2, and the rotatable assemblies of radiation source 4 and camera 6 mounted on discs 3 to rotate about axes 3<SP>1</SP> are moved forward on frames 7 along slides 8 into the appropriate position. The axes 3 are rotated at constant speed by driving means 10, 11, the driving means being reversible so that after one revolution in one direction the wheel 3 is turned one revolution in the other direction which action unwinds the cables 13 from drum 14 round which they passed during the first revolution. Arrangements are made so that during the reverse phase the radiation source is cut off, and the film in container 6 is not moving. Preferably, during the forward motion the wheel completes slightly more than one revolution and the film moves correspondingly but the radiation source is cut off at the complete revolution so that a small amount of unexposed film separates the filmed record of each weld examined. Figs. 2 and 3 (not shown), illustrate how the movement of the disc 3 and the film are co-ordinated by means of a stationary sun gear and a planetary gear having equal numbers of teeth, the film being driven by the planetary gear and the film drive means having a diameter corresponding to that of the tubular object being examined so that one complete revolution of the disc exposes a length of film equal to that of the weld under examination. A mild steel backing piece 44 is attached to disc 3 to absorb any stray radiation emerging from the camera. The rim of disc 3 is supported by rotatable bearings attached to frame 7.
Patent GB-572170-A (GB)
Title: Holder for brooms and the like
IPC: A47L13/512
Filed: 1943-07-19
Abstract: 572,170. Friction grip fasteners. SMALLBONE, P. H., and ABRAMS, G. July 19, 1943, No. 11737. [Class 44] [Also in Group XIV] A friction grip holder for brooms, &c., comprises a plate 1 hung from a wall, &c., by a screw eye 5 and having a hole 7 through which the broom handle, &c., is passed, a part 6 of the rim of the hole being serrated. A circular rib 8 is provided to reinforce the plate and a hook 4 for a dust pan, &c., is formed on the free end of the plate.
Patent GB-888779-A (GB)
Title: Improvements in or relating to tractor hydraulic lifting systems
IPC: A01B63/10
Filed: 1960-04-04
Abstract: 888,779. Power lift mechanisms. LINDES EISMASCHINEN A.G., FUR GES. April 4, 1960 [April 3, 1959], No. 11808/60. Class 79(1). In a tractor power-lift mechanism, a pair of lift arms 4, 5 of circular cross-section are rotatable in bearings 2, 3 and are fixed by rivets 10, 11 to a member 6 which is connected to a ram arm 7 of a hydraulic cylinder 8. In a modification, Fig. 2, a lift arm 21 is welded to a shaft 22 which is splined in a member 24 and secured against endwise movement by a locking pin 27. The arms 21 may occupy different angular positions relatively to each other in this embodiment. Alternative means are specified for holding the arms in place, including split pins, tapered pins, screws.
Patent GB-894081-A (GB)
Title: An improved technique and means for rendering printed information invisible
IPC: G09B3/04
Filed: 1958-04-14
Abstract: 894,081. Educational appliances. VAN VALKENBURGH, NOOGER & NEVILLE Inc. April 14, 1958 [Feb. 26, 1958], No. 11810/58. Addition to 851,749 Class 146(2) [Also in Group XVI] The invention of the parent Specification is modified in that the printed matter which is to be concealed is made further difficult to see by printing information in a  pattern comprising discrete areas separated by interstices. The apparatus is described in connection with the teaching the understanding of electronic equipment and celestial navigation. In the former an electronic amplifier has developed a fault 21 and the points in the amplifier at which the student investigates are recorded by a number to the right of a sectionally erased or removed part of screens 22-29 which initially cover the printed matter. By showing the sequence of steps he has taken to find the solution, the student shows, not only the answer, but also the manner in which he developed it. For teaching navigation a self-instruction problem simulator comprises a series of questions, the answers to which are concealed. Upon computation of say groundspeed and true heading, see step 2, Fig. 8, an answer is revealed. If computation has been incorrect the answer revealed will give a minus sign or code, e.g. as at 42, 43, 44 and further computations are made until correct answer is found, e.g. 41. Similar steps 3-13 are used to reveal visible response information supplied to the user as he proceeds to compute each of the stages of the problem. Step 14 includes calculations using other navigation equipment and after totalling the number of erasures made, a score is read off on a chart 45. Specifications 851,936 and 858,194 also are referred to.
Patent GB-991513-A (GB)
Title: Improvements in and relating to composite articles
IPC: B22D19/00
Filed: 1963-03-26
Abstract: 991,513. Casting machines; casting composite articles. E. A. THOMPSON. March 26, 1963 [April 2, 1962], No. 11834/63. Heading B3F. A method of making a composite casting comprises introducing a first amount of molten metal into a mould and allowing it to cool until a surface skin has formed thereon and then introducing a second molten metal into the mould into contact with the said skin to remelt it and cause the metals to mutually blend within a junction zone. In a machine for casting valve tappets in shell moulds, the first and second molten metals are supplied from a pair of spaced, heated containers 16, 16<SP>1</SP>, the moulds 10 being positioned successively to receive metal from each source by an. intermittently moving rotating table 14, or endless chain &c., driven by a fluid motor 138 through a step-bystep mechanism. Each container is pressurized by an inert gas from a source A and the level of molten metal therein is maintained between limits, the container being pivotally mounted on a bracket 34 movement of which due to variations in weight of the melt actuates limit switches LS1, LS2 controlling a solenoid which actuates a valve rod 24 in a second container 22. The valve rod 24 is oscillated and in the pouring position shown in Fig. 1 molten metal is delivered to the container 16, 16<SP>1</SP> by pressurized inert gas supplied through the valve rod 24 from a valve 122. Each pouring container 16, 16<SP>1</SP> comprises a valve 18 for metering a predetermined quantity of molten metal to the mould, the hollow valve rod 18 being oscillated about its longitudinal axis by a fluid motor 62. In the pouring position shown in Fig. 1, metal from the container 16 cannot enter the measuring cavity 46 in the valve rod. When the rod is oscillated a port 44 disconnects from the pouring spout 32 and connects with an inlet port 42 while simultaneously a predetermined volume of inert gas is admitted to the interior of the rod by a valve 132 to regulate the volume of metal entering the cavity 46 from the container 16. Oscillation of the valve 18 then connects the port 44 with the pouring spout 36 and the pressure of the now heated gas in the valve rod 18 forces the measured charge into the mould, followed by some escaping gas to minimize oxidation of the metal in the mould. The second metal is similarly metered and poured from the second source 16<SP>1</SP>. The moulds are fed to and removed from the table 14 by pivoting arms 174, Figs. 4 and 5, which comprise fluid-piston actuated jaws 195. The various fluid motors and valves &c. are operated in timed sequence by a cam-shaft 210, Fig. 1.
Patent GB-790178-A (GB)
Title: Method of forming piston rings or similar workpieces by turning
IPC: F16J9/00
Filed: 1956-04-19
Abstract: 790,178. Turning piston rings. TEVES, H., and TEVES, E. A., [trading as TEVES MASCHINENUND ARMATURENFABRIK KOMM.-GES., A.]. April 19, 1956 [June 23, 1955], No. 11999/56. Class 83 (3). A method of turning piston rings &c. wherein the workpieces are assembled together in the form of a cylinder or column and clamped in this form for machining, is characterized in that when the workpieces 1 are assembled to form the cylinder &c. they are connected together by an adhesive 2 which can easily be removed, and are subjected to machining operations in the glued condition. Centring rings of larger diameter than the other rings may be glued to the ends of the cylinder to facilitate setting up in a profile turning operation.
Patent GB-313701-A (GB)
Title: Improvements in or relating to gripping devices for use with meat slicing machines
IPC: B26D7/01
Filed: 1928-04-24
Abstract: 313,701. Coulson, E. April 24, 1928. Cutting slices in succession.-In a last slice holder for a slicing-machine, the prongs 16 are arranged in vertical rows and, in each set of a co-operating pair of rows, the prongs in one row are moved in the opposite direction to the prongs in the other row, this movement being effected by each of the spindles 17 carrying the rows of prongs having a plate 17<a> with a rounded head 17b which engages in one of a number of slots 18a in members 18 which are slidable simultaneously in opposite directions by a rotary handle 21 having pins 19<a> engaging with vertical slots 18<b> in the members 18. The spindles 17 are journaled at top and bottom in the frame 4, the prongs 16 are projected through holes in the iront plate 4<a>, and the members 18 are guided on pins 4b which engage with horizontal slots in the members. The holder shown is intended to be used on a slicing machine wherein the ordinary clamp is as described in Specification 296,468. The holder is positioned on the machine by forked projections 5 engaging on each side of the cam 6, by jaws 5<a> engaging under the head of a pin 8, and by a spring-pressed handle 13 having a forked section 13a which engages under the head of a stud 11 on the slicing table 12. The body of the holder has a jawed projection 10 which engages the stud 11 and the fork 13<a> fits between the head of the stud, and the projection 10.
Patent GB-990583-A (GB)
Title: Liquid control device
IPC: A61M5/14
Filed: 1962-03-29
Abstract: 990,583. Intravenous administration. ABBOTT LABORATORIES. March 29, 1962 [March 29, 1961], No. 12163/62. Heading A5R. [Also in Division G3] A device for controlling the flow of liquid through an outlet from two independent sources comprises a passage through which fluid flows from a first inlet to the outlet and, in communication with said passage, a restricted passage leading from a secondary inlet. The arrangement is such that while liquid is flowing from the first inlet to the outlet, the flow resistance of the restricted passage, together with the internal pressure resulting from the first fluid, prevents any flow from the second inlet. This flow, however, commences as soon as the main flow stops. In a simple form of the device the main flow enters the body 20 through a pipe 22 and passes directly into the outlet pipe 23. The diameters of these pipes are so selected that a narrow space 25 exists between their telescoped end portions and the free end of this space is in communication with the secondary inlet 27. The presence of a column of liquid in the inlet and outlet tubes 22, 23 results in a positive pressure at the lower end of the space 25 and this, with its flow resistance, prevents liquid flowing from inlet 27. Stoppage of the main flow, however, allows it to pass to the outlet unimpeded. Similar arrangements are described in association with a drip chamber and also in a form in which it can be accommodated within a flexible container which holds the secondary liquid. A simple application for controlling the flow from two tanks is also described, with reference to Fig. 2 (not shown). In all cases the width of the constricted passage should preferably be between 0À005 and 0À019 inch and its length between 0À5 and 1À66 inches.
Patent GB-703047-A (GB)
Title: Improvements in and relating to rotary pumps and compressors
IPC: F04C18/344
Filed: 1952-05-14
Abstract: 703,047. Rotary compressors or pumps. U.B.I. SOC. PER AZIONI (UTILIZZO BREVETTI INDUSTRIALI). May 14, 1952 [June 11, 1951; March 20, 1952], No. 12190/52. Class 110 (2) The casing bore of a sliding-vane compressor or pump is formed of two arcs of circles with radii 30, 31, their centres being as shown in Fig. 2, the two arcs joining at the points 32, 33. The vanes 17, shaped as shown, are controlled by blocks 18, on a pin 19, which slide through annular grooves 26, 37 in end cheeks 3, 8 of tempered steel. The distance apart of a pair of vanes is adjusted by means of a sleeve 48, spring 45, and a plunger 50. In the delivery channel 35 is provided a combined silencer and oil separator 56, the compressed fluid passing through a duct 36 into a second oil separator containing a baffle 10. Separated oil passes to a reservoir 33, under fluid pressure which forces the oil to circulate again, for lubricating and sealing purposes, through ducts 54, 51, 47 leading to the working parts.
Patent GB-454280-A (GB)
Title: Improvements relating to apparatus for uniformly compressing or indenting objects of varying thickness
IPC: B21K1/70
Filed: 1935-04-24
Abstract: 454,280. Presses. TRIGGS, W. W., 57, Lincoln's Inn Fields, London.-(Wilson Locknut Co.; 19, Dover Green, Dover, Delaware, U.S.A.) April 24, 1935, No. 12318. [Class 83 (iv)] Relates to apparatus for indenting nuts and the like to a uniform extent notwithstanding very slight want of uniformity in the thickness thereof and consists in means for raising the tool lowering it on to the work and applying pressure thereto to indent or compress same. In one construction the tool 18 is mounted in a holder 19 attached to a piston 22 which is constantly subjected to the action of a pressure fluid 26. The piston is raised by linkage 29, 30 through the medium of a cam 33 on a constantly rotating shaft 34. In another construction the piston is raised against the action of a long spring which maintains substantially uniform pressure on the tool. In a further modification non-compressible fluid is employed in conjunction with a falling weight serving to stabilize the pressure. In Fig. 10 a tool 57, detached from the pressure applying means, is raised from and lowered on to the work by eccentric 48, and linkage 49, 50, 52 and is struck by a falling weight 43 raised by mutilated pinion 45 and rack 44.
Patent GB-1391896-A (GB)
Title: Medium for the cultivation of mycoplasma
IPC: C12N1/20
Filed: 1973-03-15
Abstract: 1391896 Serological reagents and vaccines BEHRINGWERKE AG 15 March 1973 [18 March 1972] 12431/73 Heading A5B [Also in Divisions B1 and C6] Serological reagents and vaccines are prepared in known manner from cell suspensions of Mycoplasma, particularly M. pneumoniae, resulting from the cultivation of the organisms in an aqueous dispersion containing carbohydrate, glutamine and/or glutamic acid, valine lecithin yeast extract or its dialysis product, and sodium and potassium chlorides (see Division C6). The lecithin used is free from cell components giving rise to anaphylactogenic reactions in the vaccinated person.
Patent GB-949419-A (GB)
Title: Brake control for tractor trailer combinations with retarder systems
IPC: B60T15/46
Filed: 1962-03-30
Abstract: 949,419. Tractor-trailer braking systems. CATERPILLAR TRACTOR CO. March 30, 1962 [April 11, 1961], No. 12450/62. Headings F2E and F2F. In a tractor-trailer combination wherein the tractor and trailer have fluid-actuated brakes 23, 24 and the tractor has a fluidcontrolled retarder 10, a source of fluid pressure communicates with the tractor and trailer brakes via circuits 33, 37 controlled by a single valve 31. A by-pass circuit 43 to the tractor brakes 23 which is controlled by a by-pass valve 46 is provided and means 40 are provided which are operable upon direction of fluid to activate the retarder 10 to close the first circuit to the tractor brakes and allow the latter to be applied only with the by-pass valve 46 through the by-pass circuit. The retarder comprises a rotor 11 secured to the drive shaft 12 of the tractor which is retarded when oil from a reservoir 14 is introduced by air pressure in line 18 into the housing of the retarder. The oil is circulated through a heat-exchanger 20. Under normal operating conditions when the retarder is not in use air is admitted to rotochamber 29 of the trailer brakes by a foot-operated valve 31. A delay valve 35 admits air to the rotochamber 29 of the tractor brakes when the spring 36 has been overcome by a few pounds pressure. This arrangement ensures application of the trailer brakes before those of the tractor. If the retarder 10 is put into use by admitting air into reservoir 14 by actuation of a valve handle 17 air acts on the end of spool 42 so as to move it to a position closing the circuit to the tractor brakes. Air can then only be admitted to the rotochamber 29 of the tractor brakes via the by-pass circuit 43 by means of the by-pass valve 46. The latter is opened by a handle 50 which moves a plunger 52 so as to unseat the valve element 54 against the action of a spring 55. The by-pass valve 46 is automatically closed on movement of the lever 17 to deactuate the retarder.