baber/WOPTO huggingface dataset:
Patent GB-896500-A (GB)
Title: Thread severing means for sewing machines
IPC: D05B65/00
Filed: 1961-03-07
Abstract: 896,500. Sewing machines. FAIRWEATHER, H. G. C. (Singer Manufacturing Co.) March 7, 1961, No. 8233/61. Class 112. In a cyclically operated sewing machine a thread lock operates upon the needle thread after completion of the last stitch, and the stopping gear is arranged to halt the looptaker at a position such that the loop taken after completion of the last stitch is sufficiently tensioned to break the thread. As shown, the machine is a single thread clampfeed button sewing machine which has a rotary looper 12 and is controlled by a rotary cam 17. The thread T passes through tensioners 32, 33 and a normally open thread lock 27, and over a take-up 35 mounted on the needle bar 19, to the needle 10. The main shaft 6 is provided with a loose pulley 7 and a fast pulley 8 driven by a belt 9. A stop lever 40 is pivoted on a pin 41 carried by a cylinder 39 journalled in a socket 38. A spring 47 biases lever 40 about the axis of pin 41 to a position such that a belt-shifting fork 42, carried by lever 40, is aligned with the loose pulley 7, and a spring-biased plunger 43, mounted in the upper end of lever 40, co-operates with a spiral stop cam 44 fixed to shaft 6. A spring-loaded plunger 46 biases lever 40 about the axis of cylinder 39 to abut a fixed lug 45. A starting lever, pivoted to the machine frame at 49, has a pull rod 51 attached to one arm 50, while its other arm 52 abuts lever 40. When rod 51 is actuated to start the machine, lever 40 is rocked to align fork 42 with pulley 8 and to disengage plunger 43 from cam 44, lever 40 being held in the running position by a spring latch 53. At the completion of the cycle, latch 53 is tripped to release lever 40, when plunger 43 is compressed by cam 44 to produce a braking effect, and a lever 57 is swung by a spring 59 to engage a friction block 58 with pulley 8 to produce further braking effect. A cam lobe 29 on cam 17 also rocks a lever 30 to operate the thread lock 27 via a rod 31. Plunger 43 finally enters a notch 55 in cam 44 and is engaged by a finger 56. In this position, which corresponds to the stopped position of the machine, shown in dotted lines in Fig. 2, the looptaker beak has seized a fresh loop of thread. Owing, however, to the momentum of the machine, finger 56 acts upon plunger 43 to swing lever 40 about the axis of cylinder 39 against the bias of plunger 46 to the full-line position shown in Fig. 2. The looptaker thereby expands the loop sufficiently, against the resistance of the thread lock, to apply breaking stress to the thread.
Patent GB-713490-A (GB)
Title: Improvements in or relating to structure of solids-disintegrating machine facilitating operation and maintenance
IPC: B02C13/26
Filed: 1952-04-01
Abstract: 713,490. Disintegrating-machines. LUKENS STEEL CO. April 1, 1952 [April 11, 1951], No. 8253/52. Class 59 [Also in Group XXX] A machine for disintegrating lump solids, e.g. stones, coal, ore, comprises a rotatable disintegrating impeller 25 disposed in a housing 29 having an inlet opening 36 in a side wall 83 thereof and a tangential discharge opening, feeder mechanism F for projecting lump solids through the opening 36 into the path of movement of the impeller 25, and wear plates 117, 118 mounted within the housing in a region 116 just inside the opening 36 which constitutes, in effect, an explosion region in which the disintegrated particles of the lump solids are deflected from the impeller in various directions. The impeller is associated with a removable angled shear bar 30, Fig. 2, located at one edge of the opening 36. The feeder mechanism comprises a rotatable impeller 31 disposed in a housing 33 from the discharge outlet 35 of which a feed trough 34 leads to the inlet opening 36. The housing 33 comprises a base plate 74 and a peripheral side wall 75, the base plate being provided with removable and interchangeable segmental wear plates 97 one of which may be apertured to allow the passage of small particles therethrough, and the side wall being provided with removable and interchangeable wear plates 99. Material is supplied to the feeder mechanism by means of a digging conveyer . H (see Group XXX). The feeder mechanism, feed trough 34, and discharge end portion of the conveyer are covered by a hood 82, Fig. 2, of semi-circular form which extends longitudinally to the inner wall 83 of the disintegrator housing 29. The hood is provided with a detachable plate 125, Fig. 2, which deflects materials thrown thereagainst downwardly into the feeder mechanism F. The plate 125 is provided with a lower hinged portion 129 to provide accessibility to. the housing 33. The hood is provided with a hinged access door 130, Fig. 11, which cannot be closed until the hinged portion 129 is in its lower position. The housing 29 comprises the inner wall 83, an outer wall 101 and a semi-circular casing 102, and a lower casing 103 constituting the discharge outlet. The outer wall 101 and casing 102 are each constructed of halves bolted together. The bearings 27 of the disintegrator impeller shaft 26 are provided with removable hoods 123. The shaft 26 is driven from an engine G and drives the feeder impeller shaft 32 through reduction gearing. The machine is preferably in the form of a mobile unit coupled to a tractor. The engine G is controlled by means of mechanism M.
Patent GB-1395912-A (GB)
Title: Workpiece table with working surface
IPC: B23Q1/54
Filed: 1971-03-31
Abstract: 1395912 Workpiece tables GLACIER METAL CO Ltd 23 June 1972 [31 March 1971] 8312/71 Heading B3B A workpiece supporting table assembly comprises a table 1 rotatable relative to a housing 2 about an axis 3 perpendicular to the planar working surface of the table, the housing being also rotatable relative to a base about an axis 4 inclined to the table axis 3 and intersecting the said axis 3 in the said planar working surface. The assembly may be mounted adjacent a tool holding spindle 6 having an axis 7 which passes through the intersection point 8 of the axes 3 and 4. The table is rotated in the housing 2 by an hydraulically operated worm and wormwheel drive, and the housing is rotated in the base, by an hydraulically operated rack which engages a pinion gear mounted on the housing. Hydraulic braking is provided (17), (27, 26), (Figs. 3 and 4, not shown), to hold the table and housing in adjusted positions.
Patent GB-163545-A (GB)
Title: Improvements relating to locking bars for doors, windows and the like
IPC: E05C19/08
Filed: 1920-03-20
Abstract: 163,545. Tibbles, H. J., and Gunn, Ltd., T. March 20, 1919. Locks and fastenings operating burglar alarms; hasp fastenings. - A hasp bar for doors and windows has a projection or push-rod which controls an electric alarm of either the closed or open circuit type. The bar has a member C carrying a headed stud D which engages in a keyhole slot in the plate F to attach the bar to the leaf A of the door. The other member H of the bar is hinged to C at G and has a slot which enables it to fit over the staple K, which is fixed to the other leaf B of the door. The padlock L passes through the staple K to lock the leaves of the door together. The alarmbell circuit is carried behind the leaf B of the door in a box M<1>, and a push-rod O extends through the door leaf and box wall so that when the member H is engaged over the staple, the rod O is pushed inwards, its head bearing against the switch arm P, breaking the contact P, P<1>. The door 11 of the box, when closed, holds open a similar parallel circuit 10. A gap V in the circuit can be closed after the leaves of the door are locked together, by the bolt W<1> of the key-lock W. If either of the switches P or 10 are allowed to make contact by tampering with the member H or the door 11, the alarm-bell circuit is completed and the bell rings. A relay is included in the circuit so that the bell continues to ring independently of the contacts P, P<1>, and 10, once either has been made. The string 9 enables the relay circuit to be broken and the alarm re-set.
Patent GB-222077-A (GB)
Title: Improvements in method of and means for removing carbon deposits from engine cylinders
Filed: 1924-04-02
Abstract: A substance for decarbonizing the cylinders &c. of internal-combustion engines consists of a preparation of a solution of benzol, a primary aromatic amine, such as aniline, or an amine such as pyridine, and naphthalene, and, if desired, denatured alcohol.  The preferred compound comprises, by weight, 7 parts of pyridine, 3 parts of naphthalene, 8 parts of benzol, and 6 parts of denatured alcohol.  The compound is placed in the engine cylinder and the engine is revolved by hand and then left for a few hours.  When the engine is started the loose carbon is blown out by the exhaust. Examples of suitable amines are: -primary aromatic amines, e.g. aniline, toluidine, xylidine, and cumidine; secondary aromatic amines, e.g. monomethylaniline, mono-methyl-toluidine, monomethyl-xylidine, and their homologues; tertiary heterocyclic amines, e.g. homologues of pyridine, quinoline, and its homologues; tertiary aromatic amines, e.g. dimethyl-aniline, dimethyl-toluidine, dimethyl-xylidine, and their homologues.  Trivalent compounds give excellent results, especially the secondary and tertiary aromatic amines known as alkyl or aryl anilines, toluidines, or xylidines.
Patent GB-1255038-A (GB)
Title: POLYMERS OF alpha-OLEFINS AND PROCESS FOR THEIR MANUFACTURE
IPC: C08F10/00
Filed: 1969-02-17
Abstract: 1,255,038. Polymers of x-olefins. FARBWERKE HOECHST A.G. 17 Feb., 1969 [17 Feb., 1968], No. 8373/69. Heading C3P. a-Olefins of the formula CHs=CHR wherein R is a C 1-8  aliphatic hydrocarbon chain which may be substituted by alkyl or aryl groups, may be polymerized, optionally with ethylene, one of the α-olefins being present as at least 95% by weight, or block polymerized, optionally with ethylene, in suspension or in the gaseous phase at 20-120‹ C. and less than 50 atmos. pressure in the presence of a catalyst comprising : (A) as stereoregulator cycloheptatriene-(1,3,5) optionally substituted with aryl or C 1-4  alkyl or alkoxy, or a mixture of such compounds, (B) a halogen-containing compound of a group IVA, VA or VIA metal, in which the metal is in a valency state lower than its highest possible valency state, (C) a halogen-free organo-metal compound of a metal of group I, II or III. Component (B) is preferably TiCl 3  and (C) is preferably Al(R) 3 , where R is any identical or different C 1-40  hydrocarbon, or a reaction product of a trialkylaluminium compound or an alkylaluminium hydride and a C 4-20  diolefin and is more preferably isoprenylaluminium. The molecular weight of the polymers may be regulated by conducting the reaction in the presence of hydrogen. A novel polypropylene containing less than 10% by weight soluble in boiling heptane and a reduced specific viscosity of 25-40 dl/g., determined in 0À1% solution of decahydronaphthalene at 135‹C., corresponding to an average viscosity of the molecular weight of 2-5 x 10<SP>6</SP>-3À4 Î 10<SP>6</SP> and a novel polybutene- (1) having an intrinsic viscosity of 2- 3-'6-9 determined in decahydronaphthalene at 115‹ C., corresponding to an average viscosity of molecular weight of 1 x 106-4 x 10<SP>6</SP>, are disclosed.
Patent GB-424732-A (GB)
Title: Improvements in machines for emulsifying mixtures of liquids
IPC: B01F5/06
Filed: 1934-03-17
Abstract: <PICT:0424732/III/1> An emulsifying-machine suitable for reconstituting cream from butter and milk comprises a cylinder 29 containing a spring-pressed piston 20 which bears against a plug 26, the plug having a central channel 24 and an annular recess 22 with lateral ports leading to an outlet channel 25 and a delivery pipe 1. Mixture is drawn into the cylinder, through a valve 12, by a piston 30, and is forced through the channel 24 and, on the yielding of the piston 20, over the lip 23 of the plug and into the recess 22.  The piston 20 is slidable in a sleeve 4, held in the cylinder by a screw collar 6, and is supported therein by a second sleeve 3 screwed into sleeve 4 and acting as an abutment for a helical spring 5.  A nut 2 is screw-threaded on the piston spindle.  In starting the machine the pressure of spring 5 is reduced by rotating nut 2 and sleeve 3.  The plug 26 is held between the sleeve 4 and packing 27 and has a central projection fitting the cylinder.  The lip 23 of the plug may be flush with or offset from the plane of the piston and may be provided with annular or radial grooves.  The plug may be of hard steel or the whole plug or its central portion only may be of softer material which may contain harder grains, such soft plug owing to wear developing a roughened surface which enhances the emulsifying effect. The cylinder 29 is mounted on a rock-shaft 14 and carries a mixture reservoir 16 communicating through a chamber 11 of double the cylinder capacity with the valve 12.  The piston 30 is reciprocated by a crank 35 driven through gearing 18, 19 from a pulley 17.
Patent GB-573820-A (GB)
Title: Improvements in electric control systems for fluid coolers and similar heat exchangedevices
IPC: F01M5/00
Filed: 1943-05-27
Abstract: 573,820. Correspondence control. TRIGGS, W. W. (Garrett Corporation). May 27, 1943, No. 8512. [Class 40 (i)] [Also in Group XXXV] An electric motor driven device, such as the control flap of an oilcooler, is driven to various positions in accordance with a leading member responsive to a condition of a fluid associated therewith. A leading member 29 responsive to the temperature of oil leaving a cooler constitutes a switch co-operating with a series of contacts 32 ... 36 which are severally connected as shown to a series of overlapping switch members 60-64. The armature of an electric motor 48 driving a sleeve engaging a screw 50 coupled to a flap controlling the flow of oil over the cooler, is coupled also to a cam 45 having a lobe 55 adapted to actuate push rods 56 ... 59 which interrupt in turn the electrical connections between successive switch members. Electromagnets 84, 85 are connected in series across the outer interconnecting conductors 87, 88 and a source of current 73 is adapted to be connected between the juncture of the electromagnets and the leading member 20 through earth. Both electromagnets are thus de-energized when the leading member connects with an isolated switch member as shown and one or other is energized when it connects with any other switch member. The electromagnets control respectively switches 82, 83 whereby the motor fields are selectively energized to cause the motor to rotate in a direction which will correct the temperature of the oil by appropriate adjustment of the flap, and actuate the cam to cause the motor to stop when its position corresponds with that of the leading member 29.
Patent GB-1475887-A (GB)
Title: Yarn control elements and the like
IPC: B65H59/10
Filed: 1974-02-26
Abstract: 1475887 Yarn feed NATIONAL RESEARCH DEVELOPMENT CORP 24 Feb 1975 [26 Feb 1974 21 May 1974 (2)] 8587/74 22627/74 and 22763/74 Heading D1C A yarn feed device comprises a rotatable member around which yarn passes in a zig-zag path provided by a series of curved pegs &c 14, such that when the yarn tension increases it is pulled down on the hub of the member. When the tension slackens the yarn moves up the pegs to adopt a more or less straight path. The path may be defined by the convex parts of two opposed undulating surfaces (150) on a drum (Figure 2D, not shown), or curved teeth (104) secured to a hub (Figure 7).
Patent GB-858247-A (GB)
Title: Improvements relating to nuclear reactors
Inventor: WOOD WILLIAM GEORGE EDGAR
IPC: G21C5/04
Filed: 1958-03-18
Abstract: 858,247. Nuclear reactors. A. E. I.-J. THOMPSON NUCLEAR ENERGY CO. Ltd. March 11, 1959 [March 18, 1958], No. 8684/58. Class 39(4). A graphite moderator structure comprises spaced stacks of graphite blocks 1 separated by slabs 3 which locate the stacks against each other. The blocks and slabs have minimum Wigner growth in the directions of the arrows x, y, z, and are located by keys 6 and keyways 7 in abutting faces. The stacks have coolant channels with fuel element locating slots, and the keys and keyways extend only part of the way in towards the channels, so that the channel wall is not broken and leakage of coolant gas is reduced.
Patent GB-202593-A (GB)
Title: Improvements in protective means for marine mines
IPC: F42C19/06
Filed: 1923-03-27
Abstract: 202,593. Harrison, J. K. M. March 27, 1923. Retractive switches; fluid actitation. - An electric switch 6, Fig. 1, in the firing-circuit of a submarine mine 1 is held closed by the pull of a small float 5 and is automatically opened by gravity or by a spring when the said pull fails, thereby preventing accidental explosions. The switch shown in Fig. 2, has a metal casing 12, 13, 14 adapted to be secured to the mine casing and containing an insulating block 15, within which slides a stem 18 provided with a pole head 19 and adapted to be attached to the line 4 of the float 5. The other pole 16 is fixed in the base of the insulating block 15 and is connected to a terminal 9. A coiled spring 23 is arranged behind the head 19.
Patent GB-272821-A (GB)
Title: Improvements in the lappets and thread guides of spinning, twisting, and like machines
IPC: D01H13/04
Filed: 1927-03-30
Abstract: 272,821. Cook & Co., Manchester, Ltd. March 30, 1927. Thread guides.- The front edge of metal lappets of the kind in which the thread guide is secured by a screw .abutting against its shank is bent round so as to form a tube a<3> which is tapped to receive the securing screw E of the guide.
Patent GB-927136-A (GB)
Title: Improvements relating to transistor controlled relay circuits
Inventor: TAYLOR JAMES GEORGE
IPC: H03K3/2893
Filed: 1960-03-11
Abstract: 927,136. Automatic exchange systems. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. Feb. 20, 1961 [March 11, 1960], No 8728/60. Class 40 (4). [Also in Group XL (c)] A delayed release transistor relay circuit (see Group XL (c)) is used to control the duration of an inter-train pause in the transmission of impulse trains of a register-sender in an automatic exchange and also to operate an alarm or a forced release circuit if the duration of the impulse train exceeds a prescribed value. When the register-sender which determines the number of pulses in a train has become appropriately set and if relay B is released a relay operates to close a contact S1 and S1b and also change-over contact S1a. Relay B is thereupon operated from the supply through winding W1 and starts the operation of the sender. At the same time a contact S2 is opened and current flows through resistors Ra and Rb to charge a capacitor C. If the train of pulses continues too long the capacitor will charge to such a value that transistor T1 of a trigger circuit T1, T2 becomes conducting and T2 thus non-conducting, causing a potential to be applied through the right-hand contact S1a to transistor T3 and thus operate relay M. Contacts of this relay operate an alarm or initiate a forced release condition. The impulses are applied to a counter and, under normal circumstances, upon completion of the count a relay controlling contact S2 is released causing capacitor C to be discharged. A further contact of the relay releases the relay controlling contacts S1, S1a and S1b. Transistor T2 is conducting so that relay B is held by a current much less than the operate current and which flows through windings W1, W2 in series and the transistor T2. The operation of the relay controlling the S1 contacts releases the relay controlling the S2 contact so that capacitor C again commences to charge, the charge continuing until T1 becomes conducting and T2 non-conducting, the latter interrupting the holding current for relay B so that it releases permitting the sender to start a further train if the register-sender has been appropriately reset. A rectifier rf3 provides a stable bias for transistor T2 and the resistors Ra and Rb have a ratio such that the circuit is immune to current pulses occurring on the supply line. Modifications of the circuit are described in which the circuit associated with relay M is not used (Fig. 6, not shown) and in which the delay in operating relay M is greater instead of less than the delay in releasing relay B. Relay M may also be used to provide an alarm or set up a forced release condition if for example a telephone subscriber fails to complete the dialling process after initiating a call. For this purpose a " S " pulse may operate a relay TP which holds itself via a contact tp1 so that a following " Z " pulse is applied via a contact tp2 to operate the M relay. It is also stated that the electromagnetic switches could be replaced by valve or transistor switches. Specification 896,463 is referred to.
Patent GB-765995-A (GB)
Title: Electromagnetic vibratory interrupter
IPC: H01H50/76
Filed: 1955-03-25
Abstract: 765,995. Electromagnetic interrupters. MALLORY & CO., Inc., P. R. March 25, 1955 [Nov. 10, 1954], No. 8729/55. Class 38(5) The vibratory contacts 30, 31, 33, 34 and co-operating fixed contacts 17 are formed of molybdenum spring strip, the contact making and breaking taking place between the surfaces of the outwardly bent strip ends. The contacts 30, 31 are fixed to an armature-carrying steel reed 16 by a rivet 32 passing a reed hole 23, and the contacts 33, 34 are secured by a rivet passing through a larger reed hole 24, interposed spacers 36, 37 insulating the contacts 33, 34 from the reed. A flexible steel arm 38 secured against the reed 16 by the rivets 32, 35 caries a contact 39 co-operating with a contact 42 carried by the magnet frame 10, the contacts being in the circuit of a coil 12 energizing a hole piece 13 to attract the armature 20. The contacts 17, 30, 31, 33, 34 are made more compliant by slots 46 and notches 47. The reed 16 is fixed in the stock 11 by an integral limb 25 and by a separate strip 27 having an aperture 29 receiving the rivet 35 whereby the strip is insulated from the reed by the spacer 37. Specification 515,797 is referred to.
Patent GB-1211177-A (GB)
Title: Improvements in or relating to steering linkages
IPC: B62D7/20
Filed: 1969-02-18
Abstract: 1,211,177. Vehicle steering linkage. T.R.W. Inc. 18 Feb., 1969 [22 March,. 1968], No. 8811/69. Heading B7H.  In vehicle steering linkage comprising a centrelink which has one end attached to and supported by a pitman arm 12, and tie rods 23, 24 connecting the centrelink to respective steerable wheels, the other end of the centrelink 12 has an extension 38 slidably supported by a polyurethane bush 34 carried by a bracket 36 on the vehicle frame. The extension 38 may be straight so that the bushing 38 must accommodate pivoting of the extension caused by arcuate movement of the pitman arm 12, but the extension is preferably curved as shown so that the inner end of both tie rods 23, 24 execute similar arcuate movements H, J. Stops may be provided on the extension 38 to limit movement of the extension through the bushing to the area between the stops and so determine the maximum extent of turning of the steerable wheels in either direction.