baber/WOPTO huggingface dataset:
Patent GB-203035-A (GB)
Title: Improved device for automatically disconnecting the drive and stopping the motor when a break-down or jamb occurs in the driven parts
IPC: G05G15/00
Filed: 1922-05-30
Abstract: 203,035. Glover, W. S. C. May 30, 1922. Clutches, claw.-The parts A, A' of a clutch have inclined teeth, and are secured to shafts B, B'. Under excess load, the part A' moves longitudinally against the resistance of a spring D engaging a fixed collar C. In a modification, the clutch comprises two discs connected by spring- mounted pawls which allow angular movement under excess load.
Patent GB-119245-A (GB)
Title: Improved Photographic Camera.
Inventor: HANSEN JENS PETER
IPC: G03B17/04
Filed: 1918-09-18
Abstract: 119,245. Hansen, J. P. Sept. 1, 1917, [Convention date]. Cameras for plates and flat films.-Cameras for use with films or plates contained in envelopes which have projecting edges as described in Specification 120,572 are provided with means engaging the projecting edge in such manner that the shutter of the envelope may be easily withdrawn. As shown in Fig. 3, fillets 17 are provided within the rabbet of the back, the lower ends 18 of the fillets being above the bottom of the back so as to provide a housing for the forwardly upturned edge of the envelope and to form stops which prevent the envelope from rising as the shutter is withdrawn. The fillets may be shorter so that the stops 18 may engage projecting parts higher up on the envelope. The focusing screen 11 may be mounted on springs 12 in a frame 3 which is hinged to permit insertion of the envelope in place, the focusing screen being pressed on to the fillets 17 during focusing, and on to the back of the envelope during exposure. Catches 6, Fig. 5, with hooked ends 7 may be provided on the frame 3 to engage stops 8 on the camera back and limit the opening of the frame 3. The frame 3 may be fixed or may be slidable into position, the withdrawal of the envelope being then facilitated by the provision of a shaft bearing fingers or eccentrics which, when the shaft is rotated, force back the upturned edge of the envelope so that it clears the stops 18. The fillets may also be arranged so that they may be pressed back in the direction of the lens to permit withdrawal of the envelope.
Patent GB-1048663-A (GB)
Title: Method and apparatus for testing rod-like articles
Inventor: KAEDING HEINZ
IPC: A24C5/34
Filed: 1961-07-07
Abstract: 1,048,663. Testing cigarettes. K. KÍRBER. Aug. 22, 1962 [July 7, 1961; July 5, 1962], Nos. 15216/66 and 15217/66. Divided out of 1,048,652. Heading A2C. The Specification describes the same apparatus as that described with reference to Figs. 1-3, 6-8, 10, 11 and 17 of Specification 1,048,652 but the claims are directed to a method of testing open-ended rod-like articles having an enclosing wrapper, and of rejecting faulty articles, comprising, conveying the articles, causing relatively movable closure members to surround the peripheral end parts of the articles during a testing operation applying different air pressures internally and externally of the wrappers during the testing operation, transmitting the pressure within the wrappers during the testing operation to a testing device, withdrawing the closure members from the peripheral end parts after the testing operation, and rejecting faulty articles by causing them to move away from their conveyance path.
Patent GB-745074-A (GB)
Title: Improvements in centrifugal pumps and compressors
Inventor: DOVE ERNEST BAKER
IPC: F04D29/26
Filed: 1953-06-01
Abstract: 745,074. Centrifugal pumps and compressors. NAPIER & SON. Ltd.. D. Mav 31, 1954 [June 1, 1953], No. 15239/53. Class 110(1). In a double-entry centrifugal pump or compressor, the impeller is mounted with at least a limited freedom of movement in both axial directions, at least part of both opposite edges of at least one impeller blade being so inclined rearwardly to the direction of blade motion that the action of the fluid between the edges and the adjacent casing wall when the edge approaches the wall tends to urge the impeller in the opposite axial direction. In the pump shown in Fig. 1, freedom of axial movement is permitted by a splined connection between the impeller hub and the driving shaft 4. The oposite radial edges 5, 6, Fig. 3, of each impeller blade 1 are chamfered at an angle of 5 degrees as shown. This arrangement keeps the impeller centrally disposed within the casing 3.
Patent GB-910288-A (GB)
Title: A process for the production of several positivesfrom one negative by the silver salt diffusion process
IPC: G03C8/36
Filed: 1959-05-04
Abstract: 910,288. Photographic silver salt diffusion processes. AGFA A.G. May 4, 1959 [May 3, 1958; Nov. 18, 1958], No. 15246/59. Addition to 805,854. Class 98 (2). The production of several positives from one negative with the aid of additional silver halide solvent for the successive transfers as described and claimed in the parent Specification is improved or modified by use of thiosulphate mixtures of different solubility as the solvents. Two examples specify positive layers containing sodium and barium thiosulphates together with nuclei for the purpose, and the possibility of using layers which contain only sparingly soluble thiosulphates of different solubility is referred to.
Patent GB-126026-A (GB)
Title: Improvements in or relating to the Firing Mechanism of Ordnance.
Inventor: DAWSON ARTHUR TREVOR
IPC: F41A19/39
Filed: 1916-10-28
Abstract: 126,026. Dawson, Sir A. T., and Buchham, Sir G. T. Oct. 28, 1916. Ordnance design; breech mechanism.- Relates to guns in which the recoil is eliminated by the rearward discharge of a compensating mass, and in which to open the gun for loading, a movable portion of the barrel is unlocked, moved rearwards and then swung laterally witn respect to a fixed portion of the barrel. The invention consists in providing a .spring-controlled striker and means, operated by the device that unlocks the movable-barrel portion, for retracting the striker before any unlocking movement of the barrel portion occurs. The trigger which operates the sear is mounted on the hand-grip of a training- arm on the fixed barrel portion. The invention is shown applied to a recoilless gun of the kind described in Specification 126,025, in which the barrel portion B is unlocked, moved rearwards, and then swung aside on a spindle B<1> with respect to a fixed barrel portion A through the agency of a sleeve C rotated by a hand-lever B<x>. According to the present invention, the sleeve C is also provided with a cam groove E which operates through pin E<1>, link E<2>, bell-crank lever E<3>, rod e<1>, and lever e<2> to first retract the sleeve D<x> carrying the striker D and then to cock the striker into engagement with a sear f<4>. The sear is operated through a sliding rod f<1>, bellcrank lever f<2>, and link f<3> by a trigger f arranged nn the hand-grip of a training-arm F mounted on the trunnion F'. The lever e<2> is provided with a handle c<x> for hand cocking, during which operation the rod e<1> moves through the arm of the lever E<3> against the action of a spring e.
Patent GB-1184353-A (GB)
Title: Filter apparatus
IPC: B01D46/18
Filed: 1967-04-04
Abstract: 1,184,353. Travelling band gas filter. AMERICAN AIR FILTER CO. Inc. 4 April, 1967 [25 April, 1966], No. 15468/67. Heading BIT. A travelling band gas filter of the type in which a glass fibre web is fed from a supply roll (7) to a take-up roll across a peripheral frame 2 defining the gas path comprises hinged support arms 19 whose end slots 26 receive the spindles of the rolls, arms 19 being fitted over brackets 11 and pivoted thereto by pins 28 through apertures 17, 27. Outward protrusions 18 on resilient metal bracket 11 cooperate with apertures 29 in arm 19 to form a detent lock which retains arm 19 normal to frame 2 for use. For storage or transport, arms 19 fold inwards across the frame. The arrangement is used at both ends of roll (7) and at least one end of the take-up roll (Fig. 2, not shown), which is driven by motor (9).
Patent GB-129337-A (GB)
Title: Improvements in Telescopes and Field Glasses.
Inventor: HOUSTON ROBERT ALEXANDER
IPC: G02B23/00
Filed: 1917-10-25
Abstract: 129,337. Houstoun, R. A. Oct. 25, 1917. Telescope and reflector systems comprise an object-glass, two mirrors, and an eyepiece, one of the mirrors serving as a condenser, and the other to erect the image. In the construction shown, the condensing-mirror is in the form of a half plano-convex lens B silvered on the plane face, and the other mirror is the lower half of the objective A silvered at M on its plane face. A screen V, through which light can pass obliquely, is provided to prevent formation of an image at Q directly by the objective, in addition to the desired one obtained by reflection at mirrors B and M. Instead of silvering lens A, a plane mirror may be placed behind it, or the lower half may be replaced by a concave mirror. The screen V may be replaced by a semicircular stop at the eye-point D.
Patent GB-144108-A (GB)
Title: Improvements in and connected with electric switches
IPC: H01H19/02
Filed: 1919-06-20
Abstract: 144,108. Burrell, F. M., Smith, C. W., and Purit Specialties, Ltd. June 20, 1919. Switches, quick-action, having a centrally pivoted contact member e and a loose intermediate member d controlled by a dead-centre spring m, which may be either in the helical form shown or an equivalent bow spring, are constructed with improved contacts and terminal attachments thereto, and may be operated by turning the cover. Contacts.-Springs c shaped and bent as shown in Fig. 5 are mounted in diametrically opposite recesses in a stationary insulating-plate a. The upper portions of the springs form clip contacts co-operating with the knife contact e. The lower portions press upon the lead-wires which are brought up through holes 1, 2 in an insulating- base b. Screws x, y passing through the insulating-plate a and the base b keep the turnedover ends of the leads firmly clipped down. Covers.-The cover h is mounted on a spindle p and, when turned to the right or left, closes or opens the switch by means of a slot engaging a pin f.
Patent GB-578466-A (GB)
Title: Improvements in and relating to wave guide systems
IPC: H01P3/123
Filed: 1944-08-15
Abstract: 578,466. Wave guides. BRITISH THOMSON-HOUSTON CO., Ltd. Aug. 15, 1944, No. 15583. Convention date, Aug. 16, 1943. [Class 40 (v)] A wave guide of the metallic hollow pipe type has a pair of parallel metallic plates extending longitudinally of the guide, the plates being conductively connected respectively to opposite inner walls of the guide to divide it into a plurality of compartments, the plates being in spaced relation a substantial distance across the wave guide to form a narrow passageway connecting the compartments, so that the effective electrical length of the path presented to transversely propagating electromagnetic waves in the guide is substantially increased and the cut-off frequency of the guide is substantially reduced. Fig. 2 shows a transverse section of a rectangular guide in which metal plates 16, 17, 18, 19 running the whole length of the guide divide the guide transversely into compartments separated by a narrow passage between the plates 18, 19. This results in a very considerable increase in the length of the largest wave which can be transmitted through the guide. A small decrease in the width of the dividing passage produces a large increase in the critical wavelength, which is further increased by the introduction of a dielectric 20 such as mica or titanium dioxide. In the embodiment shown in Fig. 6, one side 30 of the guide carrying one of the dividing members 31, 32 is adjustable in the transverse direction to vary the cut-off frequency. In a further modification, Fig. 9, relatively adjustable plates 41, 42 perform the same function.
Patent GB-1498308-A (GB)
Title: Waste material processing apparatus
IPC: B02C23/34
Filed: 1976-04-15
Abstract: 1498308 Comminuting apparatus WILLIAMS PATENT CRUSHER & PULVERIZER CO 15 April 1976 [7 July 1975] 15619/76 Heading B2A  A comminuting system particularly for waste material comprises two pulverizer's and a material separator 21 using an air column, the second pulverizer including an air by-pass conduit 36 from input to output to maintain a steady air flow. Air flow is induced by a fan 42 and controlled by dampers 37, 45 and the system includes a cyclone 39 and bag filter 47. Each pulverizer has an internal screen. The system is sealed by rotary valves 22, 40, 48. The separator 21 may include baffles 50 to increase its effectiveness.
Patent GB-728108-A (GB)
Title: Improvements in or relating to machines for making shell moulds
IPC: B22C23/00
Filed: 1953-06-05
Abstract: 728,108. Moulding-machines. SUTTER PRODUCTS CO. June 5, 1953 [June 18, 1952], No. 15633/53. Class 38 (1). A machine for automatically making shellmoulds comprises a displaceable oven located in its upper portion and a sand-resin-mix box in its lower portion, a pattern-carrying assembly invertibly disposed intermediate the box and oven, mechanism for intermittently moving the assembly from an upright to an inverted position, mechanism operable in its inverted position for clampingly engaging the assembly over the box, permitting said box to be carried with the assembly to the upright position to dump the mix upon the pattern, means for maintaining the assembly at a predetermined temperature to attract to it a sufficient quantity of the mix to form a shell-mould thereon, and control means for actuating said mechanisms in timed relationship with each other. The mix box 26 is carried on sprung supports 19 on a cradle having a limited vertical movement through a pneumatic cylinder 25. Above the cradle, rotatable stub shafts 31, 31<SP>1</SP> are keyed to, and support, a roll-over pattern-plate assembly comprising a frame 33 with a depending support frame 34. The assembly is rotatable through 180 degrees by a chain 37 connected to piston rods 38, 38<SP>1</SP> and passing over a sprocket wheel 36 keyed to the shaft 31. The assembly supports a pattern plate 44, Fig. 8, beneath which are disposed heater-units 46, a refractory plate 47 and insulation 48. A stripper-plate 51 supports ejector pins 50 normally flush with the upper face of the pattern-plate, the stripper plate being vertically movable by a piston 64. Guide pins 67, 67<SP>1</SP> on the stripper-plate move in guides 65, 65<SP>1</SP>. The frame 33 carries pistons 69 at front and rear which operate clamping- fingers 73, 73<SP>1</SP> which may engage pins 75, 75<SP>1</SP> on the mix box and lock it to the pattern. Above the pattern assembly a curing oven 77, Fig. 4, is movable on tracks 82, 82<SP>1</SP> to an operative or inoperative position under the action of a piston 87 operating on a lever 86<SP>1</SP>, 88. Supported on the roof of the oven is a spray system, for spraying parting liquid on the pattern-plate before investment, comprising four jets 100 each directed to a quarter section of the patternplate. The sprays are vertically movable by a piston rod 96 connected to a pivoted arm 97. The actuating pistons are sequentially operated in timed relationship by a cam-shaft operating hydraulic valves.
Patent GB-839676-A (GB)
Title: Improvements in or relating to fluid control valves
IPC: B60T15/18
Filed: 1958-05-15
Abstract: 839,676. Fluid-pressure brakes. BENDIX AVIATION CORPORATION. May 15, 1958 [May 16, 1957], No. 15689/58. Class 103 (1). [Also in Group XXIX] A valve C for controlling the trailer brakes of a tractor-trailer vehicle combination of the type described in Specification 726,760 comprises chambers 52, 54 separated by a diaphragm structure 60 and connected to a vacuum reservoir 28 and the trailer brake actuator valve B, respectively, and a valve 68 regulating the supply of air from atmosphere to the brake, actuated by a tubular sleeve valve 78 slidable in diaphragm 60 and connected to a piston 98 in a cylinder communicating by a pipe 44 with the brake master cylinder 10. The valve is shown in the lapped condition but normally, with the brakes off, diaphragm structure 60 is urged to the right against fixed abutments.90 by a spring 88 and the right-hand end of sleeve 78 is separated from a member 70 actuating air valve 68; in this condition control chamber 54 communicates with vacuum chamber 52 through the interior of sleeve 78 and ports 84. Upon making a brake application piston 98 moves sleeve 78 to the right, to seat against member 70 and cut off communication between chambers 52, 54, and then opens valve 68 to admit air to control chamber 54. Pressure builds up until the differential load across diaphragm 60 causes it to move to the left against the force of spring 88 and the valve takes up the lapped position. Movement of sleeve 78 to the left establishes communication between vacuum and control chambers 52, 54. Upon brake release a return spring 94 separates sleeve 78 from member 70 to restore communication between chambers 52, 54, thus eliminating the pressure differential across diaphragm 60 which is then returned to its position against abutments 90 by spring 88.
Patent GB-927822-A (GB)
Title: Improvements in and relating to polymeric sulphones
Inventor: DEWING JOHN
IPC: C08G75/20
Filed: 1960-05-04
Abstract: Polysulphones are prepared by condensation of aromatic sulphonyl halides in the presence of Friedel-Crafts catalysts.  In the example, benzene sulphonyl chloride is refluxed in CS2 with Al2Cl6.  When HCl evolution ceased, the CS2 was decanted off and the product triturated and boiled with water to remove catalyst.
Patent GB-142699-A (GB)
Title: Improvements in and relating to lathe chucks
IPC: B23B31/36
Filed: 1919-06-23
Abstract: 142,699. Clifford of Chudleigh [W. H. Clifford], Baron. June 23, 1919. Chucks. - A lathe face-plate is provided with bolt-holes on each side of the central boss 2 and a slot 4 at one side of this boss, and also with chamfered edges adapted to engage an undercut slot in a gripping - member 6. This gripping-member has slots 5 to engage the bolts through the face-plate, so that it may be secured in any adjusted position thereon, and is provided with a central undercut open-ended groove adapted to receive a second gripping-member 9. This member is slotted to engage a securing-bolt passed through the slot 4 in the faceplate, whereby it also may be secured in any adjusted position in relation to the centre of the face-plate and the other gripping-member.
Patent GB-1402756-A (GB)
Title: Method and arrangement for determining the injection pr'''wre  of a fuel injection pump
IPC: G01L19/00
Filed: 1972-04-06
Abstract: 1402756 Pressure transducers N A J EILERSEN 4 April 1973 [6 April 1972] 15815/72 Heading G1N Apparatus for measuring the pressure of fluid in a container 2, Fig.3, comprises a hollow metal fitting 7 secured to the container and part surrounded by an insulated metal tube 8, the capacitance between the fitting 7 and the tube 8 being dependent on the fluid-pressure. Tube 8 is shielded by a housing 10 which has an insulated hole 11 for a probe to contact tube 8. The space between fitting 7 and tube 8 may be part filled with dielectric material to adjust the initial capacitance of the transducer. The sensitivity may be adjusted by similarly part filling the space between tube 8 and shield 10. The fitting 7 incorporates a non-return valve comprising a spring-loaded ball 5.
Patent GB-593968-A (GB)
Title: Improvements in starting electrodes for electric discharge devices with liquid cathodes
IPC: H01J13/38
Filed: 1945-06-21
Abstract: 593,968. Metal - vapour discharge apparatus. BRITISH THOMSON-HOUSTON CO., Ltd. June 21, 1945, No. 15818. Convention date, June 22, 1944. [Class 39 (i)] In a discharge device having a liquid cathode 3, a starting electrode 15 of high-resistance material preferably in the form of a cylindrical shank portion and tapered dipping end is supported by a lead conductor 17 encircling and tightly gripping the end remote from the cathode liquid and, in order that loosening of the grip due to differences in expansion under hot-working conditions may not detract from the performance, a further conductor 19 has one end secured in an opening in the shank and the other end fixed to the support conductor 17. The support conductor is.a strip foldedround and bedded in a circumferential recess in the shank the equal arms being spot welded together at 18, and the auxiliary lead 19 spot welded between them is preferably a thin fernico U-shaped conductor having its other end threaded axially into the shank. The shank of the electrode may be graphite and the tip of any high resistance material such as a mixture of boron carbide and boron nitride. The lead 12 is insulated by glass 11 sealed to metal eyelet 10 welded to header, while a larger eyelet 13 similarly welded protects the seal.
Patent GB-729191-A (GB)
Title: Improvements in or relating to slasher rolls for sizing textile yarns
Inventor: ROCKOFF JOSEPH
IPC: D06B15/02
Filed: 1953-06-09
Abstract: The surface material of a roller for sizing textile yarns (see Group VIII) consists of rubber having a substantial proportion of wool fibres intimately dispersed therein.  The term "rubber" includes natural rubber and synthetic elastomers, particularly a butadiene-acrylonitrile co-polymer or a chloroprene polymer. Preferably the wool fibres are in the proportion of one to two parts by weight to each part by weight of rubber.
Patent GB-440334-A (GB)
Title: Improvements in manifolding apparatus
IPC: B41L7/08
Filed: 1934-05-29
Abstract: 440,334. Copying documents, drawings, and the like. FORD, Ltd., F. R., and FORD, F. R., 164, Edmund Street, Birming- ham. May 29, 1934, Nos. 15950 /34, 18445 /34, and 13867/35. [Class 100 (ii)] Relates to manifolding-machines comprising a rotatable cylinder on which is mounted a mirror-script original and wherein the copy sheets are moistened by a pad against which the sheets are pressed by a pressing-member adapted to be raised and lowered, and comprises supporting the pad and its carrier by means of an inherently rigid member whereby any tendency of the presser bar to rebound and so cause imperfect moistening is eliminated. Improvements relating to the means for operating the pressing-member and for applying pressure thereto are described also. In the machine shown, the original is clamped on a rotary cylinder 7 co-operating with an impression roller 22, and sheets fed down a shoot 20 are pressed against a pad 16 by a bar 23 fixed to levers 24 rocked about pivots 25 by cams 27 on the cylinder 7. The pad 16 is held between a cover 19 and a dished carrier 17 extending from the lid 18 of a tank 14 and is supplied with moisture by a wick 15. The carrier 17 rests on a support consisting of a rod 30 extending transversely of the machine, screws 33 being provided whereby upward pressure can be exerted on the ends of the rod to press it firmly against the carrier. The cams 27 oscillate the levers 24 through the intermediary of pins 29 adjustable both along the levers and at right angles thereto, and torsion springs 42 on the pivots 25 exert pressure on the levers to provide pressure on the bar 23. One end of each spring 42 is attached to a rotatable nut adapted to be locked in adjusted angular position. In a modification, the bar 23 is replaced by a roller made of metal, vulcanite, or other rigid material or formed of rubber or provided with a rubber sleeve ; the roller may be adjustable relatively to the arms 24. Specification 384,771 is referred to.