baber/WOPTO huggingface dataset:
Patent GB-275887-A (GB)
Title: Improvements in brake shoes
IPC: F16D65/08
Filed: 1927-03-08
Abstract: 275,887. Clark, D'A. M., (Bendix Brake Co.). March 8, 1927. Blocks and shoes. -Brake shoes that are formed of pressings or stampings of metal comprise a lining-carrying part and one or more stiffening web parts having a series of tongues preferably bent in opposite directions and secured to the lining- carrying part. This construction may be employed for the shoes of a three-shoe brake of the type shown in Fig. 1 and comprising a shoe 10 anchored at 12, a servo shoe 14 pivotally connected to the shoe 10 at 16 and a reverse shoe 18 separately anchored at 20 or pivoted at this point on the shoe 10. The shoes 14, 18 are identical and each comprise a shallow channel-shaped lining- carrying part 22 and a web part 30 having alternately oppositely bent tongues 32 spot-welded or riveted to the part 22. The part 22 is bent radially at 28 for engagement with the operating cam and the tongues on the web 30 are secured to this radial part in a similar manner to the circumferential part. The shoe 10 is provided with two spaced webs similarly attached to the lining- carrying part and the pivot arms of the shoes 14, 18 extend between these spaced webs.
Patent GB-699868-A (GB)
Title: Improved locking means for the push-buttons of push-button operated locks
Inventor: ROBERTSON ROBERT
IPC: E05B65/26
Filed: 1951-03-19
Abstract: 699,868. Latches. HALLAM, SLEIGH & CHESTON, Ltd. March 5, 1952 [March 19, 1951], No. 6478/51. Class 44 A door handle having associated therewith a pushbutton, plunger or the like to operate the latch has a bore for the push-button and a housing containing a key operated rotary locking part having a projection or abutment adapted to be moved to a locking position behind or in the path of the push-button or plunger, or of a part movable with the latter. The fixed handle 2, Fig. 3, is fitted with a push-button 3 comprising a cylindrical part movable in a bore 5 in the handle. Parallel with bore 5 is a bore 6 housing a rotary lock barrel 7, coaxial with which is a rotary locking sleeve 11 having an integral radial projection 22, which when turned to locking position, forms a stop for an extension 17 of the push-button.
Patent GB-362263-A (GB)
Title: Improvements in or relating to means for driving winches in reversible rolling mills
IPC: B21C47/34
Filed: 1931-03-02
Abstract: 362,263. Variable-speed winding apparatus. KRUPP GRUSONWERK AKT.-GES., F., Buckau, Magdeburg, Germany. March 2, 1931, No. 6492. Convention date, Jan. 12. [Class 120 (ii).] A winding-drum 10 for a reversible rolling mill is driven for winding-up by sliding the dog clutch 16 into engagement with the driving wheel 2 whereby the shaft 1 drives the shaft 8 through the differential gears 3, 7 the housing 4 of which is allowed to slip round as the pressure of the brake band 12 thereon diminishes by a weight and lever (not shown) moved by the piling up of the wound material on the drum. In unwinding, the dog clutch 16 is moved to engage the dogs of a brake drum 13 which applies a drag as the material is pulled off the drum 10, the brake band 12 remaining in action so that the housing 4 is held fast.
Patent GB-577715-A (GB)
Title: Improvements in draught excluders for doors
IPC: E06B7/20
Filed: 1944-04-07
Abstract: 577,715. Draught excluders for doors. KEEN, D. S. J. April 7, 1944, No. 6544. [Class 20 (iii)] A pivoted draught-excluding strip, such as the strip 4 mounted on a base plate 1 behind the trailing face of the door in its closed position (Fig. 3) is pushed by the bottom of the door into a position below its path (Fig. 2) when the door is opened, and is raised to the operative position by a spring expansible link 11-11a pivoted to the lug 18 and carrying a rubber &c. abutment 16 engaged by the leading face of the door. The abutment 16 is in the construction shown carried on an arm -15 secured to the link 11 and mounted on a rotatable slide 12. A channel in one side plate 3 leading to the bearing for the spindle 6 enables the strip 4 to be inserted or removed and the pivoted edge of the latter bears on a resilient pad 7. A pad 9, e.g., of sponge rubber, seals the base plate 1 to the floor. According to the Provisional Specification, the strip 4 has a bifurcated end bent to provide a friction grip on the spindle 6, and an arm is fixed to the latter to serve instead of the lug 18.
Patent GB-243302-A (GB)
Title: Improvements in or relating to variable speed transmission gear
IPC: F16H61/664
Filed: 1925-03-10
Abstract: 243,302. Chandabhoy, N. K. N. Nov. 18, 1924, [Convention date]. Variable-speed friction gearing. - From a driving-shaft 1 motion is transmitted in either direction at variable speed to a driven shaft 21 by means of friction wheels 18, 19 engaging a spring-pressed disc 20 on the shaft 21. The friction wheels slide on shafts 11, 12 driven by bevel wheels 4, 6, either of which can be clutched to the shaft 1 by a sliding dog clutch 5 for reversing purposes. A lever 25 for operating the clutch is pivoted at 26 and is locked when the driving- elements are in contact by a U-shaped pin 37, the arms of which project through a plate 34. The pin is withdrawn to unlock the lever when the wheel 18 is moved beyond the edge of the disc 20, a bar 41 engaging a collar 40 connected to the pin by a link 39. To vary the speed, the wheels 18, 19 are moved across the disc 20 by bars 41, 42 engaging screwed rods 45, 46 which are geared together by a chain 53 and are rotated in either direction by bevel wheels 54, 56 engaging a bevel wheel 79 driven continuously by a chain 3 from the shaft 1. A rod 71 connected to a hand lever moves a sliding frame carrying the wheels 54, 56 to effect engagement with the wheel 79, and at the end of the traversing- motion of the wheels 18, 19 the bar 41 comes into contact with a collar 64 or 66 connected to the frame so that the bevel wheels are disengaged automatically. To retain the wheels 18, 19 at some intermediate position upon the disc, a second hand lever is adjusted to the correct position on a quadrant attached to the first hand lever; a wire rope 73 connecting the second hand lever to the bar 41 then comes into action to move the rod 71 and disengage the bevel wheels when the wheels 18, 19 have reached the desired position.
Patent GB-1282831-A (GB)
Title: Improvements in or relating to screw conveyors
Inventor: JENSEN NIELS CHRISTIAN DAHL
IPC: B65G65/22
Filed: 1971-03-11
Abstract: 1282831 Screw conveyers N C D JENSEN [trading as DAHL'S MASKINFABRIK] 11 March 1971 6578/71 Heading B8A A screw conveyer for conveying grain from a heap comprises a conveying tube 1 having a flared end 4 from which extend three rods 5 united at a point on the axis of the tube 1 where they support a bearing 6 for a protruding part of a hollow drive shaft 3. Mounted on the shaft 3 within the tube 1 is a first screw portion 2. A tube 7 carrying a second screw portion 11 is slidingly mounted on the protruding part of the shaft 3 and has cut-outs C loaded by a spring 9 into contact with a drive pin 8 driven through the shaft 3. Should an operator get his foot trapped between the screw portion 11 and the flared end 4 of the tube 1 the tube 7 slides on the shaft 3 and the drive pin 8 is disengaged from the cut-outs C. When the foot is withdrawn the spring 9 re-engages the drive.
Patent GB-1301013-A (GB)
Title: Driver's seat, particularly for motor vehicles equipped with a rear mounted shovel
IPC: E02F9/16
Filed: 1970-02-11
Abstract: 1301013 Drivers seat DEERE & CO 11 Feb 1970 [14 Feb 1969] 6580/70 Heading A4J A driver's seat arranged to swivel to face forward (as shown) or backward is also pivotal on linkages 28, 30 for vertical adjustment and is counterbalanced by a spring 42. The linkage is locked by a detent 50 engaging sector 58.
Patent GB-201865-A (GB)
Title: A system of long distance telephony
IPC: H04R21/02
Filed: 1923-03-07
Abstract: 201,865. Kilburn, B. E. D., (Naamlooze Vennootschap de Nederlandsche Thermo-Telephoon Maatschappij). March 7, 1923. Telephone systems.-For long distance telephony a thermo-microphone is employed in conjunction with an amplifier having a very high amplification ratio, which may be assisted by increasing the number of heating conductors in the thermomicrophone. Thermo telephones used in conjunction with amplifiers are preferably used as receivers and the amplification ratio at the receiving amplifier is much less than at the transmitting amplifier.
Patent GB-1294383-A (GB)
Title: Discharge lamps having improved thermionic cathodes
Inventor: CLARKE MAURICE GEORGE
IPC: H01J61/073
Filed: 1970-02-11
Abstract: 1294383 Cathode materials THORN LIGHTING Ltd 19 April 1971 [11 Feb 1970] 6662/70 Heading H1D [Also in Division C7] A discharge lamp includes a thermionic cathode comprising a refractory metal stem 10, a refractory metal tubular member 11 secured to one end of the stem to form a cup 13 and an electron emitter composition including a refractory metal, a lanthanide metal or Th and a further metal which is at least partly soluble in the lanthanide metal or Th and whose alloy therewith is capable of wetting the refractory metal in the cup. The refractory metal is W, Ta or Mo. The further metal is Ti, V, Cr, Mn, Hf, Fe, Co, Ni, Zr, Ru, Rh, Pd, Os, Ir, Pt or another lanthanide metal. The composition may comprise 90% W, 9À5% Th and 0À5% Zr which is compressed and vacuum fired above 1200 C. The tubular member is of sheet or foil clamped to the stem of wire 15. The stem and tubular member are of W, Ta or Mo. A coating of powdered composition may be applied to the inside of the cup by coating the sheet before assembly. The cathode is used in h.p. Na and Hg lamps and reduces envelope blackening.
Patent GB-488802-A (GB)
Title: Improvements in revolving doors
IPC: E06B3/90
Filed: 1937-03-06
Abstract: 488,802. Revolving doors. NEWMAN & SONS, Ltd., W., and SHEAD, H. C. March 6,1937, No. 6681. [Class 20 (iii)] The leaves of a collapsable revolving door are pivotally connected to straps which are normally secured to and rotate with the central spindle, the application of excessive force to a leaf causing its associated strap to be released from the spindle and to move relatively thereto, such relative movement causing the leaf to be released from the strap to permit its being rotated into the collapsed position. In the construction shown, the leaves 1 are secured by bolts 6 to a circular disc 5 fixed to the central spindle 3, straps 4 mounted on the central spindle being interposed between the door leaves and the disc 5. The straps are engaged by the heads of spring plungers 8 mounted in the door leaves, by which the latter are normally prevented from rotating about the bolts 6. The bolts 6 pass through arcuate slots 15 in the disc 5 and are normally retained at the mid points thereof by suitable means such as spring- pressed slides 16, 16a, which form the subjectmatter of Specification 488,803, and arcuate grooves 20 are also formed in the undersurface of the disc 5, the end portions being provided with inclined cam surfaces 7, Fig. 8. In the event of excessive force being applied to a leaf, the force exerted by the spring slide 16 or 16a is overcome and the bolt 6 moves along the slot 15 in the disc 5, causing the strap 4 to move angularly relatively to the disc. When the bolt 6 reaches the end of the slot 15 the cam surface 7 depresses a sliding member 21 which bears upon the head of the plunger 8 to free the leaf from the strap 4 and permits its free rotation about the bolt 6.. The plungers 8 may be provided with finger pieces for manual operation, and the spindle 3 may be moved to one side of the door by a trolley running on overhead rails in known manner.
Patent GB-1062711-A (GB)
Title: Improvements in or relating to vehicle simulators,especially flight simulators
IPC: G09B9/20
Filed: 1964-02-18
Abstract: 1,062,711. Grounded flight trainers. GENERAL PRECISION Inc. Feb. 18, 1964 [Feb. 21, 1963], No. 6734/64. Heading B7W. Flight training apparatus comprises a simulated cockpit (12) (Fig. 1, not shown) provided with a plurality of student-operated controls (14) which operate potentiometers (16), each representing a flight or engine control member. Further similar control circuits would be provided for operation by an instructor to set-in desired operational or emergency conditions, and all would be fed over lines such as (18). Further student or instructor operated controls (20) operate on-off switches (22) to derive signals on lines (24) and a further studentoperated control (26) simulates one of a plurality of radio receiver channel selector switches which are coupled to a translator (28) to provide digital signals. All the output signals are fed to a digital computer (10), the output signals from which are fed to simulated indicating and control devices as typified by the five different types in Fig. 1, wherein signals are transmitted to operate cockpit warning lights and devices and control loading devices, and further signals control the intensity of simulated radio signals. The digital computer (10), which receives the input signals over lines (18) as the result of operation of simulated controls (14), (20), (26) is arranged to compute digital output quantities in accordance with the operation of the controls and the equations or characteristics of motion of the vehicle in response to such operation, and comprises a multiplicity of parallel digital-toanalogue conversion channels (such as 44, 46, 40, Fig. 2, not shown) operating on said digital quantities and delivering analogue signals to the simulated indicating instruments such as (32). The computer includes a random access memory unit (40, Fig. 2, not shown) having a multiplicity of individually addressable storage locations, an arithmetic unit (52), a permanent data storage drum unit (42), the stored data in which is not changed during operation of the apparatus and which data comprises at least in part main programme instructions, individual to the particular aircraft being simulated, for controlling the arithmetic unit (52), the memory unit (40) having a section for storing the digital output quantities derived from computations performed on the inputs by the arithmetic unit (52) in accordance with stored programme instructions, the output quantities being repeatedly recalculated as the input signals change by " read " and " write " heads associated with the drum (42) (Fig. 5, not shown) whereby the output quantities in respect of more rapidly changing variables of the aircraft are recalculated more often than those in respect of more slowly changing variables.
Patent GB-571726-A (GB)
Title: Improvements relating to the firing mechanism of firearms
IPC: F41A19/14
Filed: 1943-04-29
Abstract: 571,726. Smallarms. WESTERN CARTRIDGE CO. April 29, 1943, No. 6787. Convention date, April 21, 1942. [Class 119] The pivoted hammer 28 of a bolt-action smallarm has a rearward extension 29 with two bents 30, 31 at its end for engagement with trigger-operated sears 33, 38, respectively. The hammer spring 43 is arranged in upright manner behind the hammer and substantially parallel thereto, and acts against the head 49 of a rod 44, the upper end of which engages in a recess 51 in the extension 29. The lower end of the spring is supported in, and the rod 44 guided by, a pivoted member 45, the trunnions 56 of which are received in semicircular bearings 57 in the sides 26 of the trigger-plate 11. The side walls 26 slope downwardly at 58, in rear of the bearings, so that the spring assembly may be eased into position by sliding the trunnions 56 up the surface 58, as shown in Fig. 4.
Patent GB-982296-A (GB)
Title: Process and apparatus relating to burner nozzles
IPC: F23D11/10
Filed: 1961-02-24
Abstract: 982,296. Furnaces. GULF OIL (GREAT BRITAIN) Ltd. Feb. 24, 1961 [May 2, 1960], No. 6829/61. Headings F4B and F4T. A burner 10 discharges burning gaseous or atomized liquid fuel into the open end of a curved perforated duct 80. The perforated duct may be spiral or helical or circular as shown and it may be of constant or tapering crosssection. A second burner may discharge tangentially into the duct 80 at a point diametrically opposite the first burner. In another embodiment two burners discharge in opposite directions at the same point of a circular perforated duct. The perforations may be omitted from the outer side of the duct. Two parallel side-by-side burners may discharge into a perforated tube of oval cross-section. The perforated duct may comprise a plurality of straight ducts joined at angles to each other. Specification 983,401 is referred to.
Patent GB-888976-A (GB)
Title: Improvements relating to magnetic recording and reproducing apparatus
Inventor: TUTCHINGS ALEC
IPC: G11B15/30
Filed: 1960-02-26
Abstract: 888,976. Magnetic record apparatus. SANDERS (ELECTRONICS) Ltd., W. H. Feb. 27, 1961 [Feb. 26, 1960], No. 6872/60. Class 40 (2). In a portable battery-operated magnetic tape or wire apparatus having no driving capstan but in which the medium is drawn direct from one reel to the other at constant angular velocity of the take-up reel, a shaft 49 is permanently coupled intermediate its length with a motor drive pulley 57 and is swingable from a position in which one end 60 is in driving engagement with the reel holder 16 carrying the take-up reel to another position in which the other end 62 is in driving engagement with the other reel holder 15 carrying the supply spool. The shaft 49 is mounted in bearing members 52, 53 forming a fork on a member 54 mounted on the end of a shaft 65 rotatable in a fixed bracket 68 having a normal bearing at the upper end 66, as viewed in Fig. 3, and an elongated hole, in the direction perpendicular to the mounting plate, in the lower end 67. The shaft 49 is swung to one or other of its extreme driving positions by the arms 76, 77 of a bracket 75, mounted on the shaft 65, and engaging upstanding lugs 78, 79 on the member 54. The bracket 75 is moved to one or other extreme position by a pin 93 thereon, and a bell-crank 88 connected at 87 to a main control lever 10 pivoted at 82. The position of lever 10 in an open gate 83, Fig. 3, represents a neutral OFF position, and thus when moved into that position both ends of the shaft 49 engage the reel holders 15, 16 under the influence of a spring 74 and bracket 71 acting on the shaft 65 so that the holders tend to be driven in opposing directions. The movement of lever 10 through gate 83 into slot 85 effects a RECORD position, when a forward drive is effected by the end 60 of shaft 49, a pressure pad 43 presses the tape 35 against the record head 39 by means of a pin 108 on a lever 110, an eraze head 41 on a lever 102 is also pressed against the tape, and a slide bar 124 appropriately switches the amplifier connections for RECORD. When the lever 10 is moved into the slot 84 for REPRODUCE it moves clear of the end 105 of lever 102 so that the eraze head is left clear of the tape. Movement of lever 10 into a slot 86 establishes rewinding engagement of the end 62 of shaft 49 with reel holder 15 by causing a reverse movement of the bracket 75.
Patent GB-221235-A (GB)
Title: Improvements in and relating to decorated or ornamented woodwork
IPC: B44F9/02
Filed: 1923-03-09
Abstract: 221,235. Nicoll, L. G. March 9, 1923. Ornamental photographs. - A photographic image of the grain of a wood, or of a number of woods, is formed on another wood by the aid of a negative containing a true or accentuated representation of the grain required, the image being in direct contact with the wood without the interposition of paper or other opaque support. Preferably the image is in a colloid medium such as a silver salt emulsion. The image may be formed on a temporary support and transferred, for instance a transfer bromide paper may be used. The image may represent inlay or marquetry, in which case it may comprise, in addition to the grained woods, other materials such as pearl, bone, ivory and tortoiseshell. Specification 11095/93 is referred to.
Patent GB-1149714-A (GB)
Title: Method and apparatus for the winning of coal from seams with soft floors
IPC: E21C27/18
Filed: 1967-02-14
Abstract: 1,149,714. Mineral-mining ploughs. GEWERKSCHAFT EISENHUTTE WESTFALIA. 14 Feb., 1967 [17 Feb., 1966], No. 6920/67. Heading E1F. The pre-kerfing means 15 of a plough 10 is so shaped as to cut a kerf in the face of a mineral seam and to cause the plough to ride up off the floor of the seam to slidingly engage the roof of the seam as it is drawn to and fro along the seam so that at least part of the weight of the plough is not applied to the floor. Such a plough has particular use when a seam has a soft floor.
Patent GB-736220-A (GB)
Title: Improvements in or relating to dynamos
IPC: H02K21/48
Filed: 1952-03-18
Abstract: 736,220. Machines with permanent magnets. TRAIZET, L., and TRAIZET. P., [trading as TRAIZET & CIE.]. March 18, 1952, No. 6926/52. Class 35. A magneto has a rotating magnet with four or more poles and a stator having at least two windings connected into separate lighting circuits. Fig. 1 shows a magnet rotor 2 having six poles 3, a lower stator having imbricated pole teeth 21, 22 and an upper stator having imbricated teeth 27, 28 which are arranged to meet or to approach the teeth 21, 22. A brass member 32 may be arranged between these two stators. The upper stator is smaller than the lower one and carries a winding 31 for the rear light circuit while the winding 24 of the lower stator is for the head lamp. Fig. 5 shows a flywheel magneto having a six-pole magnet rotor within which is located a stator having an ignition coil 72, and lighting windings 74, 75 in one circuit and windings 76, 77 in another lamp circuit. One pair of lighting windings can also be used for charging an accumulator through a rectifier in addition to supply current to signal lamps.
Patent GB-167521-A (GB)
Title: Improvements in connection with doors applicable for bulkheads, partitions, walls, and the like
IPC: E05C9/06
Filed: 1920-03-08
Abstract: 167,521. Stuart, O. March 8, 1920. Bulkhead doors.-In doors for bulk-head, partitions, &c. as described in Specifications 119,501 and 133,778, the door 4 with its packing 22 is pressed against a reinforcing rib 3 on the edge, of the opening by means of a cam-operated marginal sliding frame 8 carrying wedge-shaped projections as shown at 14, 9 and 34, Fig. 5, which engage snugs 13, 7 formed in brackets riveted to the partition 2 and a channelled member 33 secured to the reinforcing member 3 at the sill which is embedded flush with the deck surface between angle members 17, as shown in Fig. 6. Where a smoketight joint only is required, the rib 3 is not continued across the bottom, and the marginal frame has an angle member 36 which beds on a sill mernber 35 riveted to the partition flush with or above the deck surface, Fig. 10. The meeting surfaces of the angle members 35 and 36 are correspondingly bevelled. Where a sill flush with the deck surface is required for traffic, a wedge bar 20, Fig. 2, riveted to the marginal frame engages between channel members 17 embedded in the deck and makes a. water-tight joint along the bottom of door. The casing on which the cam acts is a frame 26 with a. cover plate secured to a rib 25 of the sliding frame, an intermediate bearing and reinforcing member 30 being attached to the rib, Fig. 5. The holes for the hinge bolts are made oval to allow the necessary movement of the door. The marginal sliding plate may be mounted on the partition 2, the brackets and projections being reversed. The invention may be applied to each of twc folding doors whose meeting edges are wedge-shaped to make a watertight joint.