baber/WOPTO huggingface dataset:
Patent GB-1044118-A (GB)
Title: Improvements in or relating to pressure transmitting devices for hydraulic brake systems
Inventor: STELZER WILLIAM
IPC: B60T8/26
Filed: 1965-03-01
Abstract: 1,044,118. Fluid-pressure brakes. KELSEY-HAYES CO. March 1, 1965, No. 8664/65. Heading F2F. A pressure-proportioning device for insertion between a master cylinder and wheel brake cylinders of a vehicle hydraulic brake system is adapted during initial brake application to apply a relatively large volume at reduced pressure to the front brake cylinders, as compared with a smaller, but unrestricted, volume at relatively high pressure to the rear brake cylinders, and during subsequent braking to deliver fluid to the front and rear brake cylinders in volumes having a fixed ratio such that front brake cylinder pressure then rises faster than rear brake cylinder pressure. As shown, a four-section differential piston 50, 58, 60, 62 is used, having a by-pass 70, 72 through it, whereby initially fluid can flow from the inlet 88 through the by-pass direct to the rear brake cylinders 20 at full master cylinder pressure, to enable relatively strong springs of duo servo type rear drum brakes to be overcome, and in order to rapidly take up clearance of the front brakes which are disc brakes, while avoiding too sudden a brake application, a relatively large volume of fluid at low pressure is supplied to the front brake cylinders 26 by the piston sections 58, 60, the reduction in pressure being determined by the ratio of the difference in area of sections 58 and 62 to the difference in area of sections 50 and 62. During this initial application the sections 58, 60 operate as one, since fluid can pass the oneway seal 66 (grooves 118 are provided in the cylinder to enable complete return of fluid on brake release). When master cylinder pressure reaches a predetermined value a valve 76 is closed, owing to movement of an inner piston 73 in the section 50 to the right against the force of a light spring 96. This checks the rate of rise of pressure in the rear brake cylinders. At about the same value of master cylinder pressure an additional change takes place in the volume relationship between front and rear brakes owing to the provision of a ball valve 126 controlling a duct 122 between bore 44, in which section 58 works, and the chamber between sections 50 and 58 which is at atmospheric pressure, via connection 30 to the master cylinder reservoir. Pressure in the front brake cylinders acts on a plunger 129 which controls the ball valve 126 such that the pressure in bore 44 gradually reduces to atmospheric pressure, thus effecting a transition whereby less and less fluid passes the seal 66 until a fixed volume relationship is established, by piston sections 60 and 62 only, between front and rear brake cylinders, this being arranged to take place when all pad clearance of the front disc brakes has been taken up, and being such that front wheel brake pressure then rises faster than rear wheel brake pressure. A check valve 142 ensures release of pressure in the front brakes during brake release.
Patent GB-635117-A (GB)
Title: Improvements in or relating to the construction of prefabricated buildings
IPC: E04B2/56
Filed: 1948-03-24
Abstract: 635,117. Windows and doors for prefabricated buildings. CENTRAL CORNWALL CONCRETE & ARTIFICIAL STONE CO., Ltd., and TONKIN, R. H. March 24, 1948, No. 8679. [Class 20 (iii)] Walls of prefabricated buildings of the type described in Specification 613,438 are modified to accommodate window and door frames by providing uprights 1 and la Figs. 1 and 4 respectively with rabbets 7, 7a against which the window and door frames are secured. As shown in Fig. 1 in the case of a window the rabbet 7 is recessed at 8 to receive a sill 5 and below the sill the upright has grooves 3a to receive slabs to complete the wall. In the case of a door the rabbet extends down to the plinth course 15 which between the uprights 1a is given the shape of a door-step 16. A lintel 12 formed in two parts is arranged to bear on the upper ends of the uprights and is recessed as at 13 so that the window  or door frame can be thrust into position after the lintel has been secured in position. The window or door frames are secured in position e.g. by wooden strips screwed to plugs driven into preformed plug holes 10, Fig. 1.
Patent GB-818942-A (GB)
Title: Improvements in or relating to cartons and like containers
IPC: B65D5/52
Filed: 1955-03-25
Abstract: 818,942. Cartons. WADDINGTON Ltd. J., and HARRY, W. J. April 5, 1956 [March 25, 1955], No. 8681/55. Class 18. A carton consists of four sector-shaped panels 1 having cut-outs and creases enabling them to be folded to enclose the article as shown, the folded panels being held in place by a tapered sleeve 6 and additionally, if desired, by a ribbon 9. The panels may have cuts 8 to provide a locating recess at each corner for the sleeve.
Patent GB-139655-A (GB)
Title: An improved belt shifting device, for belt gearing
IPC: F16H7/22
Filed: 1919-04-07
Abstract: 139,655. Semple, R., and Drews, J. O. April 7, 1919. No Patent granted (Sealing fee not paid). Belt forks.-A device for shifting driving-belts comprises a frame 1 jointed to a sleeve 4 sliding on a rod 5 which can be adjusted around a vertical rod 7. Three studs fitted with rollers 2 project from the frame 1 to engage the sides of the belt X, and a roller 3 engages the face of the belt. The frame 1 is shifted by ropes or wires 11, 12 passed around pulleys 8, 9, 10, 13, the pulley 13 being mounted on a depending rod 14.
Patent GB-930732-A (GB)
Title: Improvements in or relating to metal casting moulds
Inventor: BAUER FERDINAND
IPC: B22D7/10
Filed: 1960-03-11
Abstract: 930,732. Moulders' tools. FOSECO INTERNATIONAL Ltd. March 2, 1961 [March 11, 1960], No. 8716/60. Class 83 (1). A method of mounting a liner made up of slabs in a mould mouth comprises supporting the slabs in position against the mould wall on supports which are pivotally connected to a member located within the mould mouth, fixing the slabs, and then removing the member, with the supports pivoted inwardly away from the slabs, out of the mould through the mouth thereof. The slab supports 17, Figs. 1 and 2, are carried by linkages 15, 16, 18, the ends of the links 15 being secured to a fixed central member 5, while the upper ends of the links 18 are secured to a vertically movable lug 20. When the lug 20 is held in its uppermost position, Fig. 1, by a spring-loaded handle 23 engaging a lug 22, the supports 17 are in position to support slabs 3 while these are secured by wedges 4. Thereafter the lug 22 is released by the handle 23 allowing the linkages to collapse, Fig. 2, for withdrawal. In other modifications, the linkages are held open by a pin, removal of which allows them to collapse, and the linkages are of modified form. Specifications 627,678, 769,719, 774,490, 774,491 and 812,583 are referred to.
Patent GB-311872-A (GB)
Title: Improvements in and relating to the supply of pulverized fuel to burners
IPC: F23K3/00
Filed: 1928-03-22
Abstract: 311,872. Green, 'E. W., Unthank, G. R., and Dunn, D. March 22, 1928. Pneumatic conveyers.-In air-current apparatus for supplying pulverulent fuel to burners, the fuel and air mixture is passed through a conduit a, having a part a<1> of rectangular section and fitted with vertical baffles e and with pivoted flaps k, k<1>, K<2> which may be adjusted by levers o to control or cut off the fuel supply to any of the pipes l, l<1>, l<2> leading to the burners. The baffles e are arranged, as shown, in echelon formation and are formed with screwed parts f by means of which they are adjustably mounted in the top wall of the conduit a. Fig. 4 shows a modification in which the conduit a is of rectangular section throughout its length and is fitted, near the inlet end and adjacent the lower wall, with an additional horizontal baffle .i.
Patent GB-452318-A (GB)
Title: Improvements in electric heating elements for air heaters and the like
IPC: H05B3/50
Filed: 1935-03-20
Abstract: 452,318. Electric resistance heaters. KEITH & BLACKMAN CO., Ltd., J., and WOODLEY, D. S., 27, Farringdon Avenue, London. March 20, 1935, No. 8727. [Class 39 (iii)] A heater comprises a resistance C wound on an insulating tube D, a second insulating tube B surrounding and spaced from the first tube, a metal tube A surrounding and spaced from the second tube, end caps F, G abutting the ends of the outer tube and connected by a central rod E, and resilient means S incorporated in this connection to permit differential expansion of the outer tube and the parts enclosed thereby. The tube D has a helical groove for containing the resistance. The tube A may be provided with gills. The end caps are freely supported on bearer plates R.
Patent GB-398894-A (GB)
Title: Improvements in or relating to motion picture apparatus
IPC: G03B19/18
Filed: 1932-03-24
Abstract: 398,894. Kinematograph apparatus; photographic apparatus. KODAK, Ltd., Kingsway, London.-(Assignees of Bouveng, N. ; Elg÷, Saltsjobaden, Sweden.) March 24, 1932, No. 8812. Convention date, March 28, 1931. [Classes 97 (i) and 98 (i).] A reversible spoolbox has an aperture in one side wall through which a driving connection can be established with one spool, and an aperture in the opposite side wall through which a driving connection can be established with the second spool so that rotation of the two spools can only be effected by means of a driving member inserted through the apertures in the respective opposite walls of the spool-box. As shown in Fig. 3, the spoolbox has a fixed side wall 20 and a removable side wall 21, spools 22, 23 being arranged between the walls and depressions 24 being provided on the interior of the walls for maintaining the film in position. The spool 22 has a slot 25 with which a driving shaft passing through the wall 21 can engage. The spool 23 has a slot 26 with which a driving shaft passing through the other wall 20 can engage. One edge wall of the spool-box has slots 27, 28 for the passage of the film to form an external loop. In a modification the spool-box carries the gate and a film sprocket, a driving connection for which is provided in both walls, and slots 43, 44, Fig. 6, are provided above and below an exposure aperture 42 in the spool-box for engagement of claw-feed mechanism with the film perforations. With double-claw feed mechanism these slots are duplicated. The film perforations near the end attached to the spool 22 are cut away as described in Specification 398,911. The Specification as open to inspection under Sect. 91 comprises also a film in which the perforations may be interrupted in one edge only for use with single-claw feed mechanism. Instead of cutting away the perforations the end of the film may be firmly fixed to the spool 22. This subject-matter does not appear in the Specification as accepted.
Patent GB-1037169-A (GB)
Title: Stabilization of polymers
IPC: C08K5/11
Filed: 1965-03-02
Abstract: Benzylidene malonic acid diesters may be prepared by reacting benzaldehydes with malonic acid diesters.  In Example 1 p-methoxybenzaldehyde is reacted with diethyl malonate in benzene in the presence of piperidine.  Corresponding products may be derived from benzaldehyde, o-methoxybenzaldehyde, p-hydroxybenzaldehyde, 2,4 - dimethoxybenzaldehyde, 2,5 - dimethoxybenzaldehyde, p - octyloxybenzaldehyde and p-dodecyloxybenzaldehyde, and from dimethyl, dioctyl, dibenzyl and diphenyl malonates.ALSO:Polymers are stabilized by incorporating therein a benzylidene malonic ester of formula <FORM:1037169/C3/1> where R and R1 are hydrogen, hydroxy, C1- 12 alkoxy, C1- 12 alkyl, C2- 12 alkanoyloxy, C2- 12 alkenyloxy or C3- 12 alkenoyloxy; and R11 and R111 are C1- 12 alkyl, aryl or aralkyl.  The esters may be used together with phenolic antioxidants. Specified polymeric materials are cellulose acetate, polyethylene, polypropylene, polystyrene, polymethyl acrylate, polymetnyl methacrylate, polyvinyl chloride, polyvinylidene chloride, polyesters, polycarbonates and melamine resins.  Specified phenolic antioxidants are 2,6-di-t-butyl 4-methyl-, 4-methylol-, 4 - ethyl- and 4 - octyl phenols, 2,6 - di - hexyl - 4 - methyl- and 4 - t - butyl - phenols, and 2,4,6-tri-t-butyl phenol.  In comparative tests diethyl esters in which R1 is H and R is H or p-methoxy are incorporated in cellulose acetate, and in Examples (9) diethyl p-methoxybenzylidene, benzylidene, o-methoxybenzylidene, p-hydroxybenzylidene and 2,4-dimethoxybenzylidene malonates are incorporated in cellulose acetate; (10) diethyl p-methoxybenzylidene malonate and (11) diethyl 4-acryloxybenzylidene malonate, diethyl 4-octyloxybenzylidene malonate and dimethyl p-methoxybenzylidene malonate are incorporated in organo tin heat-stabilized polyvinyl chloride; (12) diethyl p-methoxybenzylidene, benzylidene, o-methoxybenzylidene, p-hydroxybenzylidene and 2,4-dimethoxybenzylidene malonates are incorporated in organo tin heat-stabilized vinyl chloride/vinyl acetate copolymers; (13) diethyl p-methoxybenzylidene, o-methoxybenzylidene, p-hydroxybenzylidene and 2,4-dimethoxybenzylidene malonates and (14) diethyl p-methoxybenzylidene malonate and 2,4,6-tri-t-butyl phenol are incorporated in polystyrene and (15) diethyl p-methoxybenzylidene malonate is incorporated in benzoguanamino - melamine - formaldehyde resins.
Patent GB-739967-A (GB)
Title: Automatic chain lubricator
Inventor: MCDANIEL QUINTEN G
IPC: F16H57/05
Filed: 1954-03-26
Abstract: 739,967. Lubricating. JARRELL, W. W., BULLARD, R. P., JARRELL, R. K., and CRUSE, M. J., [trading as JARRELL BULLARD CO.], and JARRELL MACHINE CO., W.J. March 26,1954, No. 8961/54. Class 12(3). A card flat chain lubricator for carding machines comprises a housing adapted to be mounted on the machine and having a lubricant reservoir therein and a sprocket assembly rotatably mounted on the housing, the assembly having a sprocket driven by the card flats and a lubricating sprocket with radially-extending passageways provided at their outer ends with wicks which are supplied with lubricant from the reservoir. In the construction shown, a chain lubricator 40 secured adjustably to transverse grinding stand 23 comprises a housing 42 with a reservoir 43 for lubricant. The reservoir has a cover plate 45 formed with a hub 65, and a sleeve 52 is rotatably mounted between the hub and the housing. The sleeve has a composite gear consisting of a lubricating sprocket 70 and a driving sprocket 71 formed with notches 80 for engagement with rib portions 30 of the card flats 31 so that the sleeve 52 is rotated in accordance with the movement of the card flats. Vertical passages 47 and 67 are formed respectively in the housing 42 and hub 65 and are adapted to register with passages 60 in the hub 65 as the latter rotates, so that lubricant can flow to a cavity 66 in the hub and thence to an annular groove 72 in the sprocket 70. Radial passageways 73 extend from the groove to enlarged portions at the outer ends which are provided with felt plugs 75. As the sprocket rotates lubricant is distributed from the plugs to the chain links. A needle valve 50 is provided to control the flow of lubricant through the passage 47.
Patent GB-196595-A (GB)
Title: Improvements in and relating to electric vacuum tube apparatus
IPC: H01J17/04
Filed: 1923-03-29
Abstract: 196,595. Soc. Anon. pour l'Exploitation des ProcÚdÚs M. Leblanc- Vickers. April 22, 1922, [Convention date]. Thermionic oscillation generators. - In apparatus for generating high - frequency or other alternating current in which a supply E of continuous current is connected with a resonant circuit comprising a condenser C, an inductance D, and the primary F of an output transformer, a three-electrode discharge tube, connected in parallel with theresonant circuit, contains mercury vapour or a. readily ionizable gas, a cathode b, maintained at incandescence by an auxiliary supply, and a grid c connected with the anode. a through a battery II or other source of constant E.M.F. so that the grid is negative with respect to the anode. The grid is located adjacent to the cathode. is preferably highly conductive, and may be attached to a metal cylinder forming a heat radiating surface. An inductance B is connected in the circuit of the supply E of continuous current which is of constant strength. The cathode is maintained at incandescence by discharge from an auxiliary anode a'. As soon as the potential of the anode equals that of the battery H a discharge is produced. At starting the tube is short-circuited until the current from the source E has reached its normal strength. The short-circuit is then interrupted and an oscillatory discharge is set up in which the current is of constant strength and voltage. The secondary of the transformer F may be connected with a number of receivers in parallel, each comprising an inductance and a condenser. A rectifying arrangement may be used to charge the grid, which comprises a transformer having two secondary windings, connected with rectifying tubes and with an inductance. Condensers mav be connected between the ends of the inductance and the secondary windings to maintain the grid potential constant. When an incandescent filament cathode is used the tube may contain argon. A long tube with a double bend may be used when the applied voltage is high.
Patent GB-161432-A (GB)
Title: Improvements in and connected with dust pans
IPC: A47L13/52
Filed: 1920-03-27
Abstract: 161,432. Ayliffe, H. March 27, 1920 Pivoted handles; wire handles.-In a dust-pan having a handle so pivoted that the pan swings into a vertical position mouth upwards when lifted by the handle from the floor, means to prevent tilting of the pan when in use are automatically put into positive engagement by the pressure applied to the handle. The handle comprises a yoke-member e, g, the out-turned ends h of which pivot in slots i into which they are sprung. When the dust-pan is in use on the floor pressure on the handle causes a tongue j thereon to enter a slot in the upper edge of the pan, the pivot-ends h rising in the slots i and the tongue j being automatically disengaged when the pan is lifted by the handle. Another form of handle comprises a handle-loop made integral with the yoke, springs as f being omitted, and the meeting parts of the loop being held by a metal clip on which the tongue is formed.
Patent GB-253846-A (GB)
Title: Improvements in vacuum cleaners
IPC: A47L5/26
Filed: 1926-04-06
Abstract: 253,846. Finkhousen, F. W. April 6, 1926. Vacuum cleaners. -A vacuum cleaner comprises a nozzle section carrying a suction fan, and a handle containing a dust bag removably attached by expansion devices. The fan 37 is mounted on the sleeve hub of an electromotor, which also drives the brush 40 through a belt 39. The nozzle mouth is fitted with a guard plate 20 which is sprung into position. An opening 41 fitted with a removable cap 42 gives access to the belt pulley. The handle is formed with slotted sides 43, and contains an open-ended dust bag 13 disterded by a sleeve formed of longitudinal webs 51 connecting expansion rings 49, 50 at the ends. A removable cap 14 is provided. If the capacity of the bag 13 is too small, the cap may be replaced by a ring carrying an auxiliary porous bag having a loop to be carried on the wrist or forearm of the operator.
Patent GB-638731-A (GB)
Title: Improvements in the manufacture of flux-coated aluminium welding electrodes
IPC: B23K35/02
Filed: 1948-04-01
Abstract: A flux-coated, aluminium or aluminium alloy welding electrode comprises a core having a first coating of copper and an outer coating of flux comprising by weight, potassium chloride 25 to 50 parts, sodium chloride 25 to 55 parts, lithium chloride 5 to 20 parts, cryolite 5 to 18 parts, applied in paste form.
Patent GB-731932-A (GB)
Title: Improvements in or relating to the manufacture of envelopes
Inventor: RANDALL JOHN WILLIAM
IPC: B31B19/00
Filed: 1952-04-10
Abstract: 731,932. Making envelopes. DICKINSON & CO., Ltd., J. April 7, 1953 [April 10, 1952], No. 9225/52. Class 94 (2). [Also in Group XV] In an apparatus for making self-sealing, packet type envelopes the blanks B are withdrawn singly through a slot 6 in the plate 1 by suction rollers 3, 4, and friction roller 5, which also fold the blank to form the narrow side flap 8, Fig. 7. Racing rollers 10 feed the blank to rollers 11 carrying stops 12 which register the blank with respect to printing and impression cylinders 13, 14 respectively, and rollers 17a forward the blank to creasing rollers 18, 19, to form the fold line 21 of the side flap 16, and the fold lines 22 and 23 of the end closures. The blank is provided with stripes of adhesive 28, 29, by gumming roller 24 and is carried between rollers 30, 31 to a folder plate 33, the fold.edge 7 of the blank coming against stops 34 beneath a guide grid 36, and suction holes in the roller 30 seizing the blank along the fold line 21 to draw it between the rollers 30 and 32. Fold patters 35, which are raised when the blank is fed against the stops 34, descend, and the stops 34 move forward, to urge the blank between the rollers 30 and 32. The folded blank is then passed by rollers 40, 40a, with the edge 21 leading, to a plough which folds over the bottom closure flap 38, and through rollers 41, 46, to endless conveyer bands 47 which carry the envelope round a roller 48, where stripes of self-sealing adhesive are applied by rollers 43 to the sealing flap and the adjoining portion of the back of the envelope. The rollers 43 are mounted on pivoted levers controlled by a cam rotating with the roller 48, whereby they are removed from the envelope when the stripes are completed. Mechanical means also are provided for lifting the rollers 43 when the machine stops. Endless conveyer bands 47, 59a, feed the envelopes around a roller 60 to rollers 61, 62, and by means of a reciprocating roller 74, and endless conveyer bands 73a, passing round rollers 62, 73, the envelopes are fed into a drying conveyer 63 provided with gripper fingers 69. The envelopes are removed from the parted gripper fingers at 76 by pushers 77, and are fed by a cam-operated suction tube 79 through rollers 80 to a stacking and counting cylinder 81.
Patent GB-250600-A (GB)
Title: Means for producing photographic records on separate cards of original entries on a sheet
IPC: G03B27/06
Filed: 1926-04-08
Abstract: 250,600. Howe, P. April 9, 1925, [Convention date]. Controlling reversing-gearing in apparatus for photographically reproducing original entries on separate cards corresponding to each entry. The raising and lowering, the change over, and the restarting mechanism in connection with the coating, printing and developing apparatus comprises two sets of bevel gears, 63, 65 and 62, 64, Fig. 2, which alternately rotate a wheel 52 in opposite directions. A rod 50 keyed through the wheel 52 screws through a fixed block 51 and is connected with the frame 77 carrying the coating- pad 49. A bevel wheel 70 is continuously driven by the main motor shaft. On the downward movement of a rod 76, the shaft 66, 67 on a movable frame 71, 72 is first moved to the right through a wheel 74 and a stationary rack 73. This engages the wheels 70, 68 and 62, 64 respectively to lower the frame 77 and pad 49. The frame 77 also rocks an angle lever 79, 80 through a pin 78. The end of the lever then engages a shaped portion 82 of the frame 71, 72 and shifts it and the shafts 66, 67 to the left, thereby disengaging the wheels 70, 68 and 62, 64 respectively, and engaging that other pairs 70, 69 and 63, 65 respectively. On the consequent upward movement of the frame 77 the end of the lever 80 subsequently engages a correspondingly shaped part 83 of the frame 71, 72 thereby moving the frame and shafts 66, 67 to an idle position.