baber/WOPTO huggingface dataset:
Patent GB-515583-A (GB)
Title: Improvements in or relating to thermionic valve amplifiers
IPC: H03F1/36
Filed: 1938-06-07
Abstract: 515,583. Valve amplifying circuits for wireless reception. TELEFUNKEN GES. FUR DRAHTLOSE TELEGRAPHIE. June 7, 1938, No. 16894. Convention date, June 5, 1937. [Class 40 (v)] A high frequency wide band amplifier has an aperiodic input circuit and is provided with negative feedback to reduce non-linear distortion and so arranged as to be effective on the longer wave band or bands and to be ineffective on the short wave band or bands. In this way cross-modulation is avoided on the longer wavebands and will not arise on the shorter wavebands as the field strength of signals is low on these bands. The Figure shows a two stage amplifier with the feedback applied to the second stage and consisting of resistances R4 R5 in the cathode lead and condenser C to render the feedback ineffective for short waves. A choke D4 is provided in parallel to the resistance R4 to adjust the grid bias, and a choke D in parallel with part of the anode resistance to reduce the high tension voltage required. The output valve is used in place of an output transformer to match a screened cable terminated by its characteristic impedance W. In a modification Fig. 1 (not shown) the feedback is taken from the anode of the second valve and applied to the cathode of the first valve. In a further modification Fig. 2 (not shown) the first valve is dispensed with and the aerial input taken to the grid of the second valve. In two valve arrangements the anode resistance of the first stage is small to prevent phase change and the valves may operate at different points in their characteristics so that the distortion in one stage is reduced by that occurring in the other so that less negative feedback is necessary. With a small anode resistance in the first stage and a large amount of negative feedback in the second stage, the distortion in one stage may be made to compensate for that in the other stage.
Patent GB-1276351-A (GB)
Title: Apparatus for chipping scrap materials
Inventor: EHRLICH STANLEY VINCENT
IPC: B23D31/00
Filed: 1969-04-01
Abstract: 1276351 Comminuting apparatus WESTERN MFG Inc 1 April 1969 16988/69 Heading B2A [Also in Divisions B3 and B5] Apparatus for cutting up scrap metal, masonry, wood &c. comprises a fixed blade 162 and hammer knives 134, 135 &c. which are mounted on a rotary shaft 100 and shear material fed from an inclined vibratory bin (24) via a rotary rake (50) Fig. 1 (not shown). The knives are mounted between heavy plates 128, 130 &c. in pairs, the knives of a pair being offset from each other around the shaft by 180 degrees and from knives of adjacent pairs by 36 degrees. Each knife is pivotally mounted and can be displaced from radial disposition, rearwardly only (see broken line position of knife 134 in Fig. 5) to an extent limited by shoulders 147 on the knife head, to allow material to pass which is too bulky or hard to be sheared. The fixed blade 162 is adjustable to vary the cutting clearance by means of a rack and pinion 170, 172. The negative angle of attack a of the knives provides a self-feeding action and can be varied from the approximately 4 degrees shown by adjusting the height of the shaft 100 using shims (115), (116), Fig. 3 (not shown).
Patent GB-1363111-A (GB)
Title: Casting apparatus including a device for shrouding a stream of metal teemed through a slidable gate
IPC: B22D11/106
Filed: 1971-06-15
Abstract: 1363111 Metallurgical ladles USS ENGS & CONSULTANTS Inc 25 May 1971 [15 June 1970] 17024/71 Heading F4B [Also in Division B3] Casting apparatus comprises a bottom-pour vessel 10, having a nozzle 15 controlled by a sliding gate 16, a mould 12, and a shroud 18, 23, with an inlet (22) for inert gas, for protecting the metal stream, there being a shroud portion 18 at the top of the mould having means (a sleeve) 19 providing a telescopic seal with a portion 23 supported by a mounting, e.g. 24, 26, on the vessel 10. A series of slidable gates 16 is supported by spring-loaded rocker arms (17) on the vessel 10. The shroud portion 23 is supported by hangers 24 and a plate 26 and adjusted by shims 30. A spring-loaded portion (31) of the top edge of portion 23 is hinged to allow movement of the gate when it bears adherent solidified metal. As shown, there is a gap 40 as a gas outlet. In a modification, rocker arms 17, Fig. 9, hold the shroud portion 23 against the gate so that there is no outlet gap. The nozzle can be changed without disturbing the shroud. The shroud portion 18 may comprise two parts bolted along a vertical centre-plane, one part being removable to allow an oxygen lance to be introduced. The enclosure also has a transparent viewing portion 21 and the inert gas inlet (22). Specification 1,363,112 is referred to
Patent GB-843129-A (GB)
Title: Self tapping screw thread insert
Inventor: COOP JACK DREYFUS
IPC: F16B37/12
Filed: 1957-05-30
Abstract: 843,129. Self-tapping screws. BRUCE & BROWN Ltd. May 29, 1958 [May 30, 1957], No. 17139/57. Class 83 (3). [Also in Group XXV] A self-tapping internally and externally screwthreaded insert has one or more flutes which form cutting edges. The flutes, which may be straight or helical, extend throughout the length of the insert, Fig. 1, or are formed along part of the insert length, Fig. 3. The depth of the flutes is substantially equal to, or slightly in excess of, the depth of the external thread. The insert may be locked in position by a pin forced into the flute, which may have been previously drilled to facilitate entry of the pin. Specifications 668,818 and 734,063 are referred to.
Patent GB-459783-A (GB)
Title: Electric foot massage appliance
IPC: A61H23/02
Filed: 1935-06-14
Abstract: 459,783. Massage appliances. SCHOLL MANUFACTURING CO. Ltd., 188, St. John Street, Clerkenwell, and NORRIS, G. THORNTON-, 7, Greville Place, St. John's Wood, both in London. June 14, 1935, No. 17171. [Class 81 (ii)] A foot massage appliance comprises a foot rest or support with a projecting vibrator actuated electromagnetically, the excitation circuit of the electromagnet being controlled by a switch operable by the patient's foot. The coil a and switch b may be inside a foot rest c to which a heel plate d is pivotally connected. Depression of the plate causes an arm e to close the switch. A blade spring g carries the armature h and a rod f provided with a knob or domed pad i. Different shapes or sizes of pad may be fitted. A rubber buffer k is provided. The heel plate may be adjustable, or an upper plate having a heel flange d<x> may be slidable along the plate d. The massage effect may be modified by varying a resistance in the coil circuit, altering the effective mass of the core, or adjusting the spring armature by a thumb screw l. Two such appliances can be combined in one structure or secured side by side.
Patent GB-925591-A (GB)
Title: New or improved method of and apparatus for packing bottles and other articles
Inventor: FISHER KENNETH
IPC: B65B21/12
Filed: 1958-05-30
Abstract: 925,591. Packaging-machines. LILLESHALL CO. Ltd. Aug. 31, 1959 [May 30, 1958], No. 17261/58. Class 94(1). [Also in Group XXX] A machine for packing bottles &c. into crates assembles the bottles with their axes vertica in groups, turns them to the horizontal position and lowers them into the crates. The machine may reverse successive groups to form oppositely facing super posed layers. Bottles 10 are fed by a con veyer 12 to one of a pair of co extensive channels C3, C4 carriec on a transfer head C1 capable o: movement transverse to the con veyer. Grippers C5 engage and slightly retract the leading bottle on the conveyer when a channel is full, and the head C1 moves tc present the group so formed to  one of a pair of pushers C6, and bring the empty channel into line with the conveyer. The pusher C6 moves the group into one of a pair of channel shaped members D1, which member then pivots through 90 degrees to bring the bottles to the horizontal position. Above the members D1 is a horizontally' reciprocatable carriage E from which depend sets of grippers E3, E4. The carriage moves so that one of these sets grips the bottle necks and moves to withdraw them horizontally until they are positioned above a crate A1. The gripper set then descends to deposit them in the crate. The above sequence has meanwhile been repeated on the opposite side of the machine so that the other gripper set may now engage an oppositely facing group of bottles and withdraw and deposit them on the next carriage movement. The crates A1 are advanced by a conveyer A2, and if several layers of bottles are to be formed, a vertically moving platform B 1 raises the crates to maximum filling level and lowers them after each layer or pair of layers has been formed. The gripper sets may have different vertical strokes and/or may be at different levels as shown in Fig. 4. Layers are staggered relative to one another by different positioning of the end walls D2, Fig. 1, of the members D1 with corresponding staggering of the gripper sets E3, E4. The machine is entirely automatic and as described is operated by pneumatic cylinder and piston means throughout.
Patent GB-1301199-A (GB)
Title: Clenching machine for attaching garment fasteners
Inventor: CRUSE ADRIAN ROBERT
IPC: A41H37/02
Filed: 1970-03-26
Abstract: 1301199 Attaching fasteners THOMAS WALKER Ltd 19 April 1971 [26 March 1970 11 April 1970] 14938/70 and 17312/70 Heading B4C A clenching machine for attaching pronged fasteners to garment material comprises at least one pair of respectively co-operable lower and upper dies 14, 18, one formed to support a pronged fastener member, Fig. 4 (not shown), and the other including anvil surfaces 40 for bending the prongs, and a pair of opposed jaws 12, 13, movable simultaneously by a common operating mechanism to cause the dies 14, 18 to effect a clenching operation. The or each upper die 18 includes a permanent magnet core 43 set in a block 42, e.g. of aluminium, steel side plates 44 defining shoulders 45 for supporting the fastener member. A die carrier 48 is pivotable on a shaft 15 of the upper jaw 12 between operative (Fig. 3) and inoperative (Fig. 1) positions by means of a lever 50 bearing a handle 51, a spring (54), Fig. 2 (not shown), urging the lever 50 towards the inoperative die position. For operation the lever 50 is positioned manually and a lever (80) is actuated, so that a trunnion-supported air pressure cylinder 20 of the operating mechanism acts through levers 24, 24<SP>1</SP> to urge the jaw members 12, 13 towards each other in guides 112, 113. A control rod 59 governed by a pin 58 running in guide means 56 of the lever 50 is connected to means in the air cylinder supply circuit for preventing actuation of the operating mechanism with the die or dies 18 out of operative position. Safety means to ensure that both hands of the operator are used during clenching is also provided.
Patent GB-716860-A (GB)
Title: Improvements in or relating to airplane cabin compressors
IPC: F04D27/02
Filed: 1951-07-17
Abstract: 716,860. Controlling clutches. CONAN, Y. July 17, 1951 [July 28, 1950], No. 17326/53. Divided out of 716,793. Class 80 (2) [Also in Group XXVI] An automatic device disengages the driving shaft of a compressor in the event of an accidental super-torque. The compressor 79 is driven through a multi-plate clutch with a torsion bar 89 splined at one end to an extension 88 of the input portion 86 of the clutch and splined at the other end to a member 82. Member 82 is connected to the engine by splines 83 and has cam teeth which engage with similar teeth on a member 84 which is slidably splined on to the portion 86. Excessive torque twists the torsion bar 89 to an abnormal extent, and the resultant relative angular displacement of the members 82, 84 causes, through the action of the cam teeth, an axial displacement of member 84 which acts through a lever 105 to throw a switch 104. This energizes an electric motor 101 so as to turn a cam 100 through 180 degrees into the dotted position. The cam moves a follower 99 which disengages the clutch. The clutch can be engaged and disengaged by a manually operable switch 103.
Patent GB-468479-A (GB)
Title: Improved driving device for web winding rollers
IPC: B65H23/195
Filed: 1936-06-22
Abstract: 468,479. Variable - speed epicyclic gearing. VANDENPUT, P. June 22, 1936, No. 17332. Convention date, Nov. 30, 1935. [Class 80 (ii)] [Also in Group XVI] In apparatus for winding a web of paper &c. under constant tension in which the winding spindle is driven through a differential gear controlled by a brake, the differential gear casing 5, which is driven by the driving shaft 1 and gears 3, 4, is mounted in a housing 21 fixed between aligned tubular members 23, 231 parallel to the shaft 1, one member 231 rotatably supporting a brake pulley 19 and the other a gear wheel 16 meshing with a pinion 17 on the winding spindle 18, the shafts 10, 11 of the sun-wheels 8, 9 passing through the members 23, 23<1> and having enlarged heads 24 fixed to the pulley 19 and gear 16. The pulley 19 is provided with a manually adjustable brake band.
Patent GB-598384-A (GB)
Title: Improvements in and relating to fasteners, more particularly for wearing apparel
IPC: A44B1/12
Filed: 1945-07-07
Abstract: 598,384. Studs. CECILLE, C. C. July 7, 1945, No. 17367. [Class 43]- [Also in Group XXV] In a fastener of the button and buttonhole type, the body 10 of the button element has a transverse slot 13 forming a recess in which one or more. tongues 15 slide; in passing through the buttonhole the tongues slide into the recess, and when the element is fully inserted they move out under spring action to extend over the edges of the button hole. The body 10 has a base flange 11 on the underside of which is an attachment loop 12. A rigid ring or the like is secured to the edges of the buttonhole, the shape of its centre. corresponding to the cross-section of the button.
Patent GB-814386-A (GB)
Title: Improvements in or relating to the manufacture of mouthpiece cigarettes
IPC: A24C5/52
Filed: 1955-01-28
Abstract: The subject-matter of this Specification is identical with that of Figs. 8-10 of Specification 814,383 and with that of Specification 814,385, but the claims relate to a resilient member for retarding the foremost cigarette of an endwise moving group of two cigarettes with a stub in between so as to cause the two cigarettes and stub to be pushed into abutment.  Specification 770,173 also is referred to.
Patent GB-323709-A (GB)
Title: Quick set wrench
IPC: B25B13/50
Filed: 1929-06-06
Abstract: 323,709. Becklin, 0. June 6, 1929. Sliding and pivoted jaw wrenches. - In the type having an adjusting worm engaging threads in the stock, in which the worm may be thrown out of engagement with the thread, the adjusting worm, 13, has an independent pin, 15, passing through its centre which bears in the socket, 25, when the worm is in its operative position. A second rotatably mounted pin, 20, is used to force the independent pin into position, and also enters into the recess, 14, forming the second bearing for the worm. On rotating this second pin a thread 23 engages with a small pin 24 which enters into a. notch at the other end of the thread, thus preventing the rotation of the pin 20 until manually released. The worm may be disengaged for quick adjustment by withdrawing the pin 20. Jaw faces.-The jaw 2 is pivotally hinged to the worm carriage 3 and is held resiliently upwards by the spring 35. The other jaw has an inclined face 31 bearing on a corresponding face 32 on the stock, being rigidly held by the pin 33.
Patent GB-783130-A (GB)
Title: Apparatus for the handling of transferable load containers
IPC: B65G63/00
Filed: 1955-06-17
Abstract: 783,130. Transferring freight containers to and from vehicles. TAYLOR, E. J. June 18, 1956 [June 17, 1955], No. 17471/55. Class 78 (4). A container 1 for carriage on a vehicle has laterally projecting spring-loaded pins 6 by which it can be supported from stands 7 to and from which the container 1 is transferred by tipping the platform 3 of the vehicle. When a container is to be transferred from the trailer illustrated the platform 3 is tipped about its trunnions 4 and the stands 7 are suspended by sockets 14 from the pins 6. The platform 3 is then lowered until the rear strands 7 engage the ground; further lowering causes the container 1 to hinge about the rear pins 6 so that the trailer moves rearwardly slightly until lugs 15 on the container 1 are disengaged from sockets on the platform 3 and the forward stands 7 engage the ground. When the pins 6 have been pushed in against their biasing springs the tubes in which they slide can be closed by suitable shutters.
Patent GB-619140-A (GB)
Title: Improvements in or relating to a truck for rail-type vehicles
IPC: B61F5/52
Filed: 1946-06-12
Abstract: 619,140. Rail vehicle brakes. GOODRICH CO., B. F. June 12, 1946, No. 17615. Convention date, July 3, 1945. [Class 103 (i)] [Also in Group XXXII] In a bogie truck the brake gear for each wheel comprises hollow blocks 89, 90, the block 87 being suspended by links 84 from the arm 45 on the sleeve 49 and the block 90 is suspended by links 89 from an arm 74 from the same sleeve. A brake lever 92 pivoted to the arm 74 and to the block 90 is extended for the connection of a link 93 which is connected to a brake lever 88 fulcrumed in the block 87, the upper end of this lever being connected by a link 97 to one end of a lever 95 pivoted to the arm 45, the upper end of this lever being connected by a link 98 to a reversing lever 110 pivoted on the sleeve 49. The brakes are applied by a rod 103 connected to an equalizer arm 105, the ends of 'which are connected by links to the centre of equalizer arms 108, 109. One end of the arm 108 is connected to a brake arm 100 and the other is connected by a link 111 to the reversing lever 110. The brake blocks are connected to the equalizer arm 109 on the other side of the vehicle such that a pull on the rod 103 applies an equal pressure to the brake blocks. U.S.A. Specification 2,408,520 is referred to.
Patent GB-727300-A (GB)
Title: Pneumatic conveying system
IPC: B65G53/06
Filed: 1953-06-25
Abstract: 727,300. Pneumatic conveyers. BAKER PERKINS, Ltd. June 25, 1953 [Aug. 27, 1952], No. 17679/53. Class 78 (1). The conveying system for flour and like materials described in Specification 725,388, is simplified by omitting the dust collecting conduit and associated suction pumps and dust separators. Flour supplied by a rotary bladed discharger 22 to the conduit 23 is blown by compressed air supplied by a blower 9 to flour scales 3, 4 mounted above dough mixers 5, 6. Three-way valves 24, 26 are provided on the conduit 23 and can be turned to connect the conduit to branch conduits 29, 33, respectively, which discharge tangentially into separators 30, 34 mounted above the scales 3, 4. The air discharge outlets of the separators 30, 34 are connected directly to the return loop 25, 27 of the conduit, which is connected to the separator 28 mounted on the bin 2, by pipes 31, 35 containing check valves 32, 36. Air is discharged from the bin 2 and the separators 14, 28 through a filter 20 to the atmosphere. In a modification each pair of valves 24, 32 and 26, 36 is replaced by a single valve 40, Fig. 3. This valve comprises a stationary cylindrical housing 41 having discharge ports 42, 43 connected to the conduit 25 and branch pipe 29, respectively. A cylindrical valve element 44 is movable within the housing by air admitted through pipes 49, 50 and has ports 51, 52 formed therein which are connected by sleeves 53, 54 to flexible sections of the conduits 23, 31. The sleeves pass through a slot 55 in the housing.
Patent GB-867497-A (GB)
Title: Improvements relating to electric wire fences
Inventor: DRAKE RODNEY SHUTTLEWORTH
IPC: B65H75/40
Filed: 1956-06-08
Abstract: 867,497. Fencing. LILWALL, R. J. Sept. 5, 1957 [June 8, 1956], No. 17712/56. Class 45. [Also in Group XXX] A tensioning device for an electrified fence comprises a spring reel 50 which is secured to post 35 by means of clamp screw 34 and a straining reel (not shown), which is secured to post 36, the fence wire 38 being connected to wire 16 of the reel 50 by the loop 16A. The wire is strained by the straining reel, the wire 16 being drawn off the spring reel till the whole fence is tight, the posts 37 holding up the wire. Operation. When it is desired to reposition the posts whilst avoiding the wire sagging to the ground, the straining reel is operated to slacken the wire to permit the spring reel 50 to take up its wire 16, the amount of take-up being limited by the engagement of abutment 29 with fairlead 26, 26. Post 35 is then moved to position 35A, and sequentially the posts 37 are moved to positions 37A, post 36 being finally moved to position 36A. The straining reel (positioned at 36) is then operated to draw the wire off the spring reel and then to tighten the wire.
Patent GB-140957-A (GB)
Title: Improvements in or relating to friction-clutches
IPC: F16D13/71
Filed: 1919-07-15
Abstract: 140,957. Hammond, W. R. July 15, 1919. Clutches, friction.-In a friction clutch for motor-vehicles &c., levers J pivoted on a movable clutch plate E secured to one shaft are engaged by a spring-pressed operating-sleeve L so that the levers are first turned into driving-contact with an overhung flange D on the drum C fixed on. the other shaft A., the plate E being then moved into contact with the clutch face B of the drum C. During disengagement, the levers J are disengaged from the flange D and the member B is then withdrawn.
Patent GB-1474961-A (GB)
Title: Fuel nozzle assembly for a compression ignition internal combustion engine and a' engine incorporating such a fuel nozzle assembly
IPC: F02M61/04
Filed: 1974-04-30
Abstract: 1474961 Fuel nozzle assemblies M G FIEDLER 30 April 1974 [30 April 1973] 17813/74 Heading F1B A fuel nozzle assembly for a compression ignition I.C. engine comprises a first sleeve 73 closed at one end except for a plurality of passages 77 and having adjacent said end a shoulder 75 on which is seated a resilient member 76, a second sleeve 80 having one end disposed in the first sleeve 73 to form a seat 79 for a valve member 78, which has a passage 78A therethrough and is slidable in the first sleeve 73, the passage 78A communicating with the passages 77. When fuel is supplied via a passage 80A in the sleeve 80, the valve member 78 is moved to away from seat 79, compressing the resilient member 76 and allowing fuel to flow through the passage 78A and the passages 77. The nozzle is supplied with fuel from an injection pump, Fig. 2, having a slidable plunger 56 whose stroke length is adjustable by means of a pin (62), Fig. 3 (not shown), whose position determines the starting position of the plunger 56 by rotating a cam follower 57 by means of a member (60) and a shaft 67. In Fig. 5 (not shown), members (90A), (90B), (90C) are actuated by pins (91A), (91B), (91C) to operate fuel pump assemblies for a six cylinder engine.
Patent GB-121167-A (GB)
Title: Improvements in or relating to Carriage Bodies and Frames for Vehicles.
Inventor: ARQUINT HANS
IPC: B62D29/02
Filed: 1917-12-01
Abstract: 121,167. Arquint, H. Dec. 1, 1917 Ventilating vehicles.- The ends 34 of the corrugations of the roof 33 of a motor, railway, or tramway vehicle are left open to provide ventilation passages.