baber/WOPTO huggingface dataset:
Patent GB-284855-A (GB)
Title: Means for simultaneously machining, or forming races upon, the opposite sides or ends of free-wheel sprocket rings
IPC: B23C3/00
Filed: 1927-01-24
Abstract: 284,855. Bayliss, Wiley, & Co., Ltd., and Bayliss, C. T. Jan. 24, 1927. Drilling-machines. - In a machine for simultaneously machining the opposite faces of free-wheel sprocket rings revolving cutters are simultaneously fed towards each other from opposite sides of the work by cams or other means, the feed being automatically stopped when the cutters have retreated after a working operation. The work 1 is carried by a fixed block 5, Fig. 4, having machined seatings 6, 7 for engaging its outer contour and preventing axial movement and is secured against rotation by dogs 11, 12, mounted respectively on the block 5 and a weighted lever 14 pivoted to the block at 9. An annular recess 8 in the block accommodates the teeth of a sprocket wheel and communicates with a slot 10 to allow cuttings &c. to escape. The cutters 2, Fig. 1, are carried by spindles 20 rotated by pulleys 22 and mounted in bearings 21 on carriages 3 which are simultaneously reciprocated to and from the work bv cams secured to drums 27. The cams 25, 26, which are similar on each drum, act on rollers 23 mounted beneath the carriages to advance the cutters slowly and withdraw them rapidly, and the cams 35 may be designed so as to give a coarse initial feed to the cutters and a fine finishing feed. The drums are keved to a common shaft 28 having secured thereon a worm wheel 29 engaged by a worm 30 which may be clutched to a belt-pulley 31, Fig. 3. The worm is secured to a sleeve 34 having splined thereon the clutch part 33 while the clutch part 32 is secured, together with the pulley 31, to a shaft 35 passing through the sleeve, the part 33 being under the control of a bell-crank lever 37. In operation, a sprocket wheel is placed in the work-holder 5 and the machine is started by depressing the lever 37 and engaging the clutch 33, a pivoted dog 41, under the control of a spring 46, snapping behind a lug 40 on the lever to maintain the clutch closed. The cutters are advanced to the work and retracted and when at their rearmost position a block 43 secured to the worm-wheel 29 trips the dog 41, allowing a spring 36 to oscillate the lever 37 and stop the feed. The lever 14 is thereupon raised to release the finished workpiece and allow its replacement, after which the lever 37 is again depressed for another operation. The cams may be driven otherwise than as described and may be replaced by other feed means, and the form of clutch and work-holder may be modified. Cutters; jigs.-The cutters 2, Fig. 1, have peripherally spaced teeth 16 to form annular grooves of the same diameter on opposite sides of the work and one cutter has a central pin 17 adapted to fit a socket 18 in the other cutter to maintain the cutters concentric. A ring 19 rotatably mounted on the exterior of the socket 18 engages the central aperture of the work to ensure the grooves being concentric with the aperture.
Patent GB-237173-A (GB)
Title: Improved means of controlling the pitch of variable pitch propellers for aircraft
IPC: B64C11/34
Filed: 1925-01-22
Abstract: 237,173. Lorenzen, C., and Lorenzen- Turbinen-Akt.-Ges. Jan. 22, 1925. Screw propellers.-In variable pitch air screws controlled automatically by variation of air pressure due to altitude, an air cylinder is axially mounted on the boss and a piston therein is connected by universally-jointed rods to the blades; also provision is made for varying the air pressure by a hand pump for manual control of the pitch. The blades 1, Fig. 1, are rotatably mounted in sockets 2 on the boss 4 and are connected bv universally jointed rods 23 with a cross tube 19 on a hollow piston rod 17. The piston 12 moves in an open-ended cylinder 11 axially aligned with the boss, and has two rings 13 and a groove 14 packed with thick grease. Air is admitted to the space 15 of the cylinder through the hollow rod 17 when the aircraft is on the ground and then the cap 18 is fitted. For enabling the pilot to control the pitch, air is admitted or abstracted from the space 15 through a channel 32, Fig. 4, drilled in the crankshaft 6 and leading to a box 29 which is connected to a hand-pump 27.
Patent GB-818240-A (GB)
Title: Improvements in apparatus for the treatment of a liquid with a gaseous medium, or vice-versa
IPC: C12M1/04
Filed: 1958-01-21
Abstract: <PICT:0818240/III/1> In an apparatus for treating liquids with gases, a vessel 1 containing liquid is connected at its base to a circulation conduit 2 which opens above the surface of the liquid and is provided with a non-return valve 4, there being means to admit gas as a pulsating flow in the conduit.  Preferably the conduit is provided with a chamber 3 into which any foam produced is trapped and forced downwards into the liquid by pulses of gas admitted through a line 5 having a filter 6.  The gas passes upwards through the liquid through a hole in an inverted cup 7, as a stream of fine bubbles.  In an alternative form suited to treating algae or bacteria in a nutrient medium with gases in sunlight, a long vessel 31, Fig. 3, is divided by a partition 32, having a non-return valve 34, the top of the vessel 31 being surmounted by a wide chamber 30.  The apparatus is preferably made of transparent plastic material.  The pulsating gas pressure may be generated by a bellows.
Patent GB-1368768-A (GB)
Title: Rotary harrows
IPC: A01B33/06
Filed: 1971-07-23
Abstract: 1368768 Rotary harrows C VAN DER LELY NV 23 July 1971 [30 July 1970] 02090/74 Divided out of 1368761 Heading A1B The subject matter of this Specification concerns the rotary harrow described in Specification 1,368,762 with reference to Fig. 4 thereof, the claims being directed to the soil-compressing member (36) with outwardly extending pins or spikes (37) at its periphery.
Patent GB-497512-A (GB)
Title: Improvements in a latch construction
IPC: E05C19/04
Filed: 1938-01-21
Abstract: 497,512. Latches. LEHMAN, L. H. Jan. 21, 1938, No. 2104. [Class 44] A latch, yielding to pressure, comprises a hollow cylindrical detent 19, Fig. 4, retained in a socket 11 by a pin 17 passing through the bore of the detent into holes 18, and pressed outwards by a spring 20 so as to present a minor segmental portion beyond the mouth of the socket. In a modification, Fig. 6, the edge of the door is recessed to form the socket and a plate 34 is inserted having an upturned rear end 35 to provide an abutment for the spring 36 and a stop 33, which may be integral with the plate, to limit outward movement of the detent 39. In a further modification, Fig. 7, two stops 42 are struck out from the sides of the socket to retain the detent, and the part 40 of the socket accommodating the spring may be cylindrical to facilitate fixing in the edge of the door. The corners of the detent may be rounded or a spherically surfaced detent may be used, and a cap, such as 38, Fig. 6, may be interposed between the spring and the detent
Patent GB-574599-A (GB)
Title: Improvements relating to slicing machines
IPC: B26D1/14
Filed: 1944-02-05
Abstract: 574,599. Slicing-machines. BERKEL & PARNALL'S SLICING MACHINE MANUFACTURING CO., Ltd., and THOMAS, H. Feb. 5, 1944, No. 2178. [Class 28 (ii)] The motor 2 for driving the disc knife 1 of a slicing machine by a stretchable belt &c. 3 is pivotally mounted at one end only so that the motor tends to pivot downwards to tension the belt. As applied to a gravity feed slicer, the pivotal mounting comprises a splined rubber ring 15 forced over the motor end and clamped thereon by straps 19 screwed by projections 21 to a cradle 20 clamped by bolts 23, 24 to a bracket 25 on the machine base. The cradle 20 has a flanged end carrying a pad 28 to steady the side of the motor casing and to allow the motor pulley to move only in the plane of the drive. This movement is also limited by the size of a clearance hole 27 in the motor end casing into which the extra long fixing bolt 24 enters. To prevent noise and to avoid the use of lubricant the pad 28 may be made of fabric laminated plastic or fibre or hardwood. A spring loaded plunger 29 bearing on the casing of the worm drive 9 of the motor keeps the belt tight. When applied to a horizontal feed slicer with vertical knife, the motor is constrained for up and down end movement only, by mounting the motor body between horizontal trunnions (32 Fig. 8 not shown). In Fig. 11 the motor is mounted at one end between constraining trunnions 32 only, and resilient material may be omitted but retention of the spring plunger is desirable.
Patent GB-228538-A (GB)
Title: Improvements in or relating to the treatment of concrete surfaces
IPC: C04B41/53
Filed: 1925-01-26
Abstract: 228,538. Johnson, N. C. Feb. 2, 1924, [Convention date]. Moulds, processes.-In order that the internal aggregate from which concrete walls or blocks are formed shall be exposed at the surface of the finished wall or block, a composition is used to contact with the face of the wall or block during casting or within two or three hours of same, this composition containing a reagent which prevents the setting of the cement at the wall or block surface. The composition is in the form of a colloidal paste, so that the reagent is slowly fed from the paste to the cement and does not interfere with the main wall or block aggregate. The composition may be plastered on the insides of the forms or mould walls before casting, or may be applied to the wall shortly after casting and before setting. A suitable composition is given as 10 grains of tannic acid added to 100 grams of starch boiled in one gallon of water. Sugar may be substituted or added with the acid, and also a hygroscopic salt such as calcium chloride, the amount of water being varied if necessary. A block treated in this manner is shown in Fig. 4 with the aggregate 5 exposed at the surface.
Patent GB-489440-A (GB)
Title: Improvements in or relating to electron discharge devices
IPC: H01J1/18
Filed: 1937-01-26
Abstract: 489,440. Thermionic cathodes. MARCONI'S WIRELESS TELEGRAPH CO., Ltd., and YOUNG, A. J. Jan. 26, 1937, No. 2329. [Class 39 (i)] In a tensioning arrangement for a multi-looped filament of the kind in which the filament is supported by hook - ended members passing through an insulating plate and acted on by a spring under compression, each hook-ended member passes through a tubular guide which allows sliding and minimizes lateral movement. As shown, each hook-ended wire 2 is guided by a tubular member 4 carried by a mica plate 6 supported over a slot 1a in a rigid insulating support 1 of steatite &c. A helical spring 8 bears between the top of the mica plate and a dished disc 10 riveted to the end of the wire 2. In an alternative arrangement, the wire 2 is integral with the spring, and the tubular member 4 may be connected by a washer 7 to the mica plate or, if the rigid insulator 1 is of silica &c., may be secured thereto directly by swaging. The grid and anode supports are carried by the rigid insulator, and where ribbon filaments are used these are preferably disposed so that the flat faces of the ribbon face the grid supports.
Patent GB-725297-A (GB)
Title: Improvements in or relating to an electro-plating process
Inventor: BURNS RICHARD HAROLD
IPC: C25D5/00
Filed: 1953-01-27
Abstract: 725,297. Electrodeposition of metals. INDIANA STEEL & WIRE CO. Jan. 27, 1953, No. 2346/53. Class 41. Zinc, nickel, cobalt or cadmium, or mixtures thereof, are electrolytically deposited using as electrolyte an aqueous ammoniacal solution of metal-ammonia salts of the metals and an anode having a magnetite surface which has been treated to remove Fe 2 O 3  surface film. The removal of the film may be by electrolysis (either cathodic or anodic) in acid solution, by annealing the formed magnetite under reducing conditions, or preferably by mechanical treatment such as grinding or sand-blasting. The metal-ammonia salts may be chlorides, acetates, phosphates, or sulphates. Specifications 509,577 and 591,866 are referred to.
Patent GB-122915-A (GB)
Title: Improvements in the Construction of Slab Buildings.
Inventor: ENGLAND ARNOLD
IPC: E04B2/56
Filed: 1918-02-09
Abstract: 122,915. England, A. Feb. 9, 1918. Roofing.-Roof slabs A, Fig. 6, are locked on a rib B<2> by marbles F between the undercut tongue D and their edges, a yoke E being similarly locked. Walls.-Slabs A, Fig. 3, slipped into channels or undercut rebates in columns B are locked by marbles F dropped down their edges which are grooved to engage them.
Patent GB-508393-A (GB)
Title: The manufacture of vat dyestuffs
IPC: C09B56/12
Filed: 1938-01-25
Abstract: 508,393. Dyes. CARPMAEL, A. (I. G. Farbenindustrie Akt.-Ges.). Jan. 25, 1938, No. 2422. Addition to 487,380. [Class 2 (iii)] Vat dyestuffs of the general formula where R is the radicle of a vattable ring system, or the. corresponding imidazole, oxazole or. thiazole derivatives, are manufactured by converting such N-aroyl derivatives of amines of vattable ring systems (or their, imidazole, oxazole or thiazole derivatives) as contain in the aroyl radicle an amino or nitro group, by an oxidation or reduction process respectively, into the corresponding azo compounds. In examples : (1) 1-(3<1>-nitrobenzoylamino).-anthraquinone is reduced by means of, zinc dust and aqueous ammonia in dioxane solution ; the product dyes cotton from a red vat lemon yellow shades; (2) Á-(4<1>-aminophenyl)-2 :1 (N)- oxazoloanthraquinone is oxidized by means of sodium hypochlorite in aqueous sodium carbonate solution ; (3) Á.-(3<1>-aminophenyl)-1(S) : 2(N)-thiazolanthraquihone is similarly oxidized; the product dyes cotton from a violet-red vat yellow shades ; (4) 1-(4<1>-aminobenzoylamino)- anthraquinone is oxidized by means of sodium bichromate in aqueous acetic acid solution. Specification 478,700 is referred to. 1 - (3<1>- Nitrobenzoylamino) -anthraquinone is obtainable by condensing 1- aminoanthraquinone with 3-nitrobenzoyl chloride in the presence of o-dichorobenzene.
Patent GB-249479-A (GB)
Title: Improvements in or relating to water-heating apparatus
IPC: F24C13/00
Filed: 1926-01-28
Abstract: 249,479. Soc. E. Chaboche et Cie. March 19, 1925, [Convention date]. Void [Published under Sect. 91 of the Acts]. Closed solid-fuel stoves; boilers, arrangement of.-A 'boiler-stove for placing in front of an ordinary fireplace for heating circulation-water and for warming the room comprises a waterspace 3 in a housing 1, fuel in the central fuel space resting upon a comb-like grid 5, a perforated ring- 6 and a bottom shaking-grate 7. Air for combustion passes in through the grid 5 and products of combustion emerge at the opening 12 and traverse the annular space between the boiler and housing to the exit at 13. Flow and return pipes 16, 17, connect to the circulation system, and, where the flow pipe 16 is, for convenience, bent down to floor level before passing up to the ex, pansion tank, an upwardly directed pipe is fitted between the connection 15 and the higher part of the pipe 16 to accelerate the flow. To allow of ready removal of the boiler when desired, the pipes 16 and 17 join the circulating pipes by joints shown in Fig. 7, 8, comprising casings 21 detachably held to the unions 22 by cap-nuts 26 on bolts 24. Drain cocks 31 are provided.
Patent GB-693159-A (GB)
Title: Improvements in or relating to apparatus for and methods of shearing strip material into varying lengths
IPC: B23D25/12
Filed: 1952-01-30
Abstract: 693,159. Shearing. DAVY & UNITED ENGINEERING CO., Ltd. (United Engineering & Foundry Co.). Jan. 30, 1952, No. 2527/52. Class 83 (iv). A rotary flying shear is arranged to cut strip into predetermined lengths by altering the angular relation between the cutters on the rotary elements. A lower drum 25 carries a cutter 26 and an upper drum 27 is four times the diameter of the lower drum and carries cutters 28, 29, 31, 32 at 90 degrees apart, cutters 33, 34 at 180 degrees apart and displaced 45 degrees to the first set, and a cutter 35 midway between the cutters 22, 33. When the cutters are engaged as shown in Fig. 4, the strip is cut into lengths equal to the periphery of the lower drum by the cutters 28, 29, 31, 32. By repositioning the drums the cutters 33, 34 may be engaged with the cutter 26 to sever strip of double the periphery of the lower drum. By arranging the cutter 35 to cooperate with the cutter 26 lengths equal to four times the periphery of the drum may be cut. If the drums are rotated at double speed without altering the strip feed the lengths cut are halved resulting on a total variation of lengths cut of one to eight. The drum 27 is coupled to its driving shaft by a dog clutch allowing of the required angular adjustment of the drum. In a modification, Fig. 1 (not shown), two groups of cutters carried on an upper drum and another group on a lower drum are selectively engaged with a single cutter on a central drum.
Patent GB-176966-A (GB)
Title: Improvements in and relating to calendars
IPC: G09D3/04
Filed: 1921-01-19
Abstract: 176,966. Morgan, G. S. G. Jan. 19, 1921. Calendars and date indicators.-A monthly calendar comprises a backing a on the face of which a series of guides b are arranged constituting channels into which are slid date tablets and blanks c and one or more rotatable discs f, u pivoted at the rear of the backing and exposing through apertures therein the month names and year numbers respectively. Strips j or pins are provided at one or both ends of the guides b to retain the tablets c in position, the strips j being held in catches n. In place of the disc u for the year numbers a strip may be substituted slidable in guides similar to the guides b. The space above the calendar may be used for advertisement purposes and may be provided with a clock, with clock dials for high and low tide times, and with letter, pipe, or match-box racks. A known particular date indicator A may be employed. The strips j may be hinged or removable or a hinged or removable enclosing frame may replace the said strips. The backing a may be made of cardboard, wood, celluloid. ivorine &c. and the guides b may be made of similar material and made in one piece or formed in two parts fastened by adhesive material, screws, &c. to the backing a.
Patent GB-790551-A (GB)
Title: An improved apparatus for lubricating wire cables or ropes
IPC: D07B7/12
Filed: 1955-01-28
Abstract: 790,551. Lubricating cables. REEKIE, D. G. B. Jan. 30, 1956 [Jan. 28, 1955], No. 2673/55. Class 12 (3). Apparatus for lubricating cables comprises a rotary member adapted for the passage therethrough of a cable and provided with packing forming the ends of a chamber to which lubricant is supplied under pressure, the rotary member being rotated as the cable is drawn therethrough, by means of a driving member formed with circumferentially-disposed elongated teeth-like members each of which engages a side of the cable. In the construction shown, a rotor consisting of two half-sections 11 is mounted within a stator 14 and a flanged cover 15, the stator consisting of two half-sections connected at one side by a hinge-pin 19 and being provided with a pivotally-mounted locking device 20 at the other side. One end of the rotor carries a driving member comprising cable-engaging devices 35, each device being formed with an elongated tooth 35a for engagement with one side only of a length of cable 36. The tooth is shaped to conform to the contour of the cable. The cable-engaging devices 35 are fitted within radial guides and are urged inwardly by adjustable springs, the inward movement being limited by adjustable tappets. Each device 35 has connected thereto a radial plate, the inner end of which conforms in shape to the wires or strands of the cable, so that the plates remove extraneous matter from the cable before it is lubricated. The rotor 11 is formed with openings 12 forming part of a chamber for lubricant which is supplied by a pump through a port 17 in the stator 14. The rotor on each side of the chamber is provided with recesses 45 containing rubber or like liners 46. Segmental packing-rings 47 bear on each liner and are compressed between segmental metal rings 48. When a cable is drawn through the apparatus the driving devices 35 co-operate with the strands of the cable and impart a rotary movement to the rotor and to the packing, while lubricant is pumped through inlet 17 into the cable. The locking device 20 on the stator 14 is adapted to retain the two sections of the rotor 11 each within its associated stator half-section when the stator is opened. For this purpose two plungers 24, 28 are provided which enter holes in the rotor sections when the locking device 20 is turned about its pivot, the plunger 24 being actuated by means of a cam slot 22 engaging the plunger pivot 23, and the plunger 28 being actuated by means which include a rack on the plunger, a pinion-wheel 27 and an arcuate rack 26. Specification 612,180 is referred to.
Patent GB-457424-A (GB)
Title: A combined book case and writing desk
IPC: A47B63/04
Filed: 1936-01-29
Abstract: 457,424. Combination book-case and desk. SAVAGE, M. H., 1, Carlton Mansions, Chichele Road, Cricklewood, London. Jan. 29, 1936, No. 2712. [Classes 52 (i) and 52 (iii)] [See also Group XV] A combination book-case and writing desk comprises a case 1, 2 for receiving telephone directories &c., and a flap 5 hinged to one side of the case and serving as a writing-slope. Beneath the slope is a holder 8 for a roll of memorandum paper 9, which can be drawn down the slope 5, and torn off at the cross - bar 10. The slope is supported by struts 12, and may be turned into the recess 51. The device may be mounted on a turntable 3.
Patent GB-329993-A (GB)
Title: Improvements in and relating to apparatus for cutting field drains or trenches and for laying electric and like cables
IPC: E02F5/10
Filed: 1929-01-26
Abstract: 329,993. Hodgson, J. Jan. 26, 1929. Laying cables.-A drain or trench plough to which may be attached a cable laying device comprises a carriage, a main frame adapted to carry the appropriate share and a lifting frame with a haulage rope whereby the main frame may be lifted completely off the ground for transportation. The main frame f, Fig. 3, is pivoted at f<1> to two members d, which with stays e and a transverse arched member a comprises a lifting frame. A haulage rope, not shown, has one end attached to the main frame at f<7> while the other passes over a pulley s such that the pull on it lifts the main frame completely off the ground. For cutting drains, a mole j, which may be fitted with a renewable shoe is carried by a plough h, adjustably mounted in the frame f. and passing into the ground in alignment with and behind a cutting disc g. To lay electric cables or the like in the drain the plough is combined with the appliance shown in Fig. 6 in which the arched member and carriage are not shown. A cable u, from a drum w, on a wheeled frame x passes through a grooved guide or pipe t mounted on the rear of the mole j. For trench excavating a mole m, Fig. 9, fitted with a renewable sock m<1> and attached to the blade h follows a pair of coulters r adjustable as to distance apart and angle with the frame f. A shoot n and deflecting plates p serve to lead the excavated earth to the surface and then deflect it.
Patent GB-249269-A (GB)
Title: A new or improved artificial limb
IPC: A61F2/60
Filed: 1925-01-31
Abstract: 249,269. Underwood, E. W. Jan. 31, 1925. Limbs, artificial. - The socket of an artificial limb is attached to the stump by suction and for this purpose it is closed at its lower end and provided with a helical groove or grooves b in its inner surface. A valve e may be provided for the passage of air into and out of the socket. Specification 10395/85 is referred to.