baber/WOPTO huggingface dataset:
Patent GB-1395683-A (GB)
Title: Closed loop control system
IPC: B23Q15/12
Filed: 1973-05-07
Abstract: 1395683 Automatic control of feedrate  INTERNATIONAL BUSINESS MACHINES CORP 7 May 1973 [30 June 1972] 21628/73 Heading G3N In an adaptive, on-line numerically controlled machine tool (milling machine used for side or slot milling), the feedrate is modified from a nominal programmed value in dependence on the component of the deflection force between tool and workpiece transverse to their relative movement. The desired deflection force is computed on the basis of tool deflection characteristics to give the greatest feedrate consistent with a specified machining accuracy. The nominal feedrate data passes from the feedrate interpolator (not shown) of controller 14, having been received from data disc 10, to interface 38 on line (30), Fig. 3A (not shown) and is modified in counter (BRM) to feed the modified feedrate data on line (31) back to controller 14 to control machine tool 18. Components (F x ,F y ,F z ) Fig. 3C (not shown) of the sensed tool-workpiece force are fed to A/D converter 23, and, in adaptive control unit 19 receiving also programmed cutting path data from motion control 11, the component of the total force (Fd), Fig. 2B (not shown) transverse to the path (P) is computed on the basis of disclosed algebraic analysis, in either linear or circular interpolation, the transverse direction being altered in the latter case for each shift of the radius vector through a predetermined angle # I , or for each program step, the compution, in unit (MLMSR) Fig. 3B (not shown), taking the program form of Fig. 9 (not shown). In unit (MLOPT) Fig. 3B (not shown), the force Fd is compared with a sequence of pre-set values, see Fig. 13 (not shown) to provide either high gain, or low gain increments or decrements in the bite (B) of the milling cutter, program Fig. 12 (not shown), the determined value of (B) being multiplied by spindle speed in unit (MLAPL) Fig. 3C (not shown), to provide a signal, representing a desired feedrate, which is fed to the counter (BRM) via unit (MLUPD). Unit (ACSCN) Fig. 3C (not shown), enables a predetermined offset in the deflection force to be allowed for (deflection-free parameters), program Fig. 11  (not shown).  General system organisation. Path and nominal feedrate data are fed from disc store 10 to buffers (12, 13), Fig. 3A (not shown) of motion control module 11, the data being de-multiplexed in unit (16), Fig. 3A into nominal feedrate, and path data before being fed to known numerical controller 14. A CRT display is also provided, Fig. 5 (not shown), enabling an operator to modify the machine control parameters if desired. Data during cutting is sampled, and fed to tape (82). The feedrate can be increased for "air-gaps" in the machining path.
Patent GB-789952-A (GB)
Title: Ion exchange resins
Inventor: MCMASTER ELMER LEROY
IPC: C08F8/34
Filed: 1956-07-13
Abstract: Cation exchange resins are obtained from insoluble cross-linked copolymers of monovinyl and divinyl aromatic compounds by reacting with phosphorus thiochloride and hydrolysing the thiophosphonyl dichloride groups so formed to thiophosphonate groups, i.e. the group -PS(OH)2 and salts thereof, e.g. the sodium, potassium, calcium, magnesium or ammonium salts.  The copolymer is derived from 80 to 99.5 per cent of one or more monovinyl aromatic hydrocarbons, e.g. styrene, vinyltoluene, vinylxylene, ethylvinylbenzene or isopropylvinylbenzene, and from 20 to 0.5 per cent of a divinyl aromatic hydrocarbon, e.g. divinyl benzene, toluene, xylene or ethylbenzene by bulk, emulsion or suspension polymerization in the presence of a catalyst such as benzoyl peroxide, lauroyl peroxide, di-tertiarybutyl peroxide, ditertiarybutyl di-perphthalate or cumene hydroperoxide.  Suspension polymerization in water or brine yielding small beads is preferred.  The reaction with phosphorus thiochloride is carried out in the presence of a Friedel-Crafts catalyst, e.g. aluminium chloride, ferric chloride, stannic chloride or zinc chloride, at from 25 DEG  to 125 DEG  C. until the copolymer contains an average of at least one thiophosphonyl dichloride group per ten aromatic nuclei and these groups are then hydrolysed by heating with water, or aqueous acid or alkali.  In the example a terpolymer of styrene, ethylvinylbenzene and divinylbenzene is phosphonated.
Patent GB-597759-A (GB)
Title: An improved type of piston and piston ring
IPC: F16J9/20
Filed: 1945-08-25
Abstract: 597,759. Pistons. O'HARA, H., and WADSWORTH, J. Aug. 25, 1945, No. 21850. [Class 122 (i)] A piston ring assembly comprises three continuous rings L, M and N, L being of curvilinear section while M and N are of elliptical section, so arranged to exert radial pressure when compressed axially in the adjustable groove D, formed between a tubular extension B of the piston crown A and a separate skirt H screwed thereon. An outwardly expanding circular clip R, having one end S bent to pass through holes U in the extension B and to engage slots V in the skirt H, prevents relative rotation between these two parts. Specifieation 538,517 is referred to.
Patent GB-436759-A (GB)
Title: Improvements relating to slicing machines
IPC: B26D7/32
Filed: 1934-07-26
Abstract: 436,759. Slicing-machines. BERKEL & PARNALL'S SLICING MACHINE MANUFACTURING CO., Ltd., Aden Road, Ponders End, Middlesex.-(Maatschappij Van Berkel's Patent Naamlooze Vennootschap; 33, Boezemsingel, Rotterdam, Holland) July 26, 1934, Nos. 21859 and 22141. [Class 28 (ii)] In the slice-stacking mechanism of a slicing- machine, the device or deflector 20 for attaching the slice to the prongs 16 of the conveyer 15 is mounted for displacement by the action of the slices themselves, to vary the slice-passage space between the device 20 and the conveyer. In Fig. 1, the deflector 20 is carried by two pairs of links 22, 23 pivoted to brackets 24, 25 secured to the knife bracket 14, and a tension spring 26 tends to project the deflector towards the cutting edge of the knife to an extent which is controlled by an adjustable stop 28. The lengths of the arms 22, 23 and the positions of the pivots are so chosen that the middle part of the curved leading edge of the deflector moves approximately in a straight line corresponding with the back contour of the knife rim. If the contour is slightly concave, the arrangement may be such that the leading edge of the deflector is moved in a slightly curved path. During the slicing, the slice presses the deflector back against the action of the spring 26, and attachment of the slice to the prongs is ensured by ribs 21 on the deflector arranged between the levels of the rows of prongs on the conveyer. The slices are removed from the conveyer, in the usual manner, by an oscillating discharge fly 18, and are received on the table 19. The initial position of the deflector may be adjusted in accordance with the slice thickness setting and this may be effected by means connected with the slice-thickness adjustment means. The arrangement is not shown in Fig. 1, but comprises a cable, secured at one end to the back of the deflector and trained over pulleys and a jockey, to be secured at the other end to a toothed rack geared to the slice-thickness adjustment means. In the modification shown in Fig. 5, the slice deflector 50 is fixed, but a slice attaching device 55, preferably ribbed, protrudes through an opening in the deflector and is carried by a lever which is pivoted at 57 and is under the influence of a compression spring 58. The lever is normally pressed by the spring against an adjustable stop 59, but the slice, in its passage, presses back the device 55. Adjustment of the deflector is permitted by elongated bolt holes 51a. According to the Provisional Specifications, the conveyer may be composed of a series of superposed arcuate, or annular, spacing blocks and thin arcuate, or annular, plates interposed between the blocks, the whole being held rigidly together by bolts. The plates extend beyond the faces of the blocks and are provided with slice-impaling projections in the form of very small prongs or hooks.
Patent GB-188782-A (GB)
Title: Improvements in pneumatic tires
IPC: B60C5/08
Filed: 1921-08-17
Abstract: 188,782. Porter, W. P. Aug. 17, 1921. Air tubes and chambers.-The inner tube of a pneumatic tyre comprises a rubber body 6 and cords or fabric tapes 7. The tube may have a thickened tread 8, and the cords 7 are arranged in the shape of a V, the arms of the V crossing on the tread to form a double thickness of crossed cords. To build up the tube a flat unvulcanized rubber sheet 9 is treated with solvent and dried, short rubbered cords 10 are laid in V-form and lightly rolled on the sheet 9. A covering layer 10 is then applied and the composite sheet wrapped round a mandrel 12 with the edges overlapping on the tread. A thickened tread is then built up of a series of rubber sheets 13, 14 &c., a helical winding 20 of fabric applied, and the tube vulcanized. After removal of the wrapping, the tube is turned inside out, the ends being cemented together in the usual way.
Patent GB-890022-A (GB)
Title: Improvements in or relating to jigs primarily for use by wood workers
IPC: B27F1/12
Filed: 1958-07-09
Abstract: 890,022. Dovetailing. ROBINSON & CO. Ltd., A., and WAITE, J. L. Sept. 1, 1958 [July 9, 1958], No. 21944/58. Class 145. A jig for producing dovetail joints with the aid of a portable manual or power-driven tool comprises a pair of workpiece supports 10, 11 at right angles to each other and a guide member having at least one slot 17c, 33 or 55 for receiving a sleeve 22 in which a tool holder 23 is journalled, the sleeve having a pair of slots 22a which engage front and rear guide surfaces at the edges of the slots in the guide member. The support 10 is vertically adjustable on the support 11 and the two supports are clamped together by wing nuts 15, the adjusted position being indicated by a scale 10d, Fig. 1. Studs 18 and wing nuts 19 secure the guide member 17 to the support 11 and two different transverse locations are provided by a pin 21a engaging in one of two holes 21 in the support 11. The centres of the holes 21 are at half the pitch of the slots 17c in the member 17 and work locating studs 12 and 31 on the supports 10 and 11 are spaced apart a lateral distance equal to the spacing of the holes 21. The workpiece B is thus offset from the workpiece A and by passing the sleeve 22 with the rotating tool 25 down the series of slots 17c in turn and then repeating the operation with the pin 21a located in the other hole 21 complementary dovetail tongues and grooves can be cut in the two workpieces. The work supports may be provided with holes through which G-clamps can be passed, as shown in Fig. 1, or spring-loaded clamping bars 42, Fig. 10, on screw studs 43 may be provided. The guide member 17 may abut fixed lugs 11b on the support 11 or may have horizontal adjustment provided by a slotted member 34, Fig. 10, a spacing bar 41 being clamped between abutments 34a and the face of the workpiece A to ensure that workpieces of varying thickness can be cut to the same extent by the tool 25. As shown in Fig. 16, the guide member 54 has a single guiding slot 55 and is slidable along a bar 57 which can be mounted on the studs and four sets of teeth at different pitches. By turning the bar upside down or end for end, a particular set of teeth can be selected and a projection 64 on the member is engaged in turn between the teeth of that set. For disengaging the projection from a tooth, a cam 67 is turned until a flat 67a is uppermost and a plate spring 69 then raises the projection. For cutting a single dovetail tongue and a corresponding groove in two workpieces, as in the construction of shelving, the guide member 32 of Fig. 11 is secured on the studs 18. A groove can be cut across a workpiece on the support 11 by traversing the sleeve 22 along the slot 33 and a corresponding tongue can be formed on a workpiece on the support 10 by two passes at different heights, the height adjustment being obtained by moving the support 10 vertically or by providing vertical adjustment for the member 32. The open end of the slot 33 may be closed by a screwed stud and a distance piece or by an E-shaped clip 53.
Patent GB-254906-A (GB)
Title: Improvements in or relating to projectors for stationary films
IPC: G03B23/12
Filed: 1925-09-03
Abstract: 254,906. Soc. Anon. Natura Film, and Nunes, R. L. Sept. 3, 1925. Holders. -The lamp 7 in an optical - projection apparatus is carried by a lamp-holder comprising concentric conductors 11, 11' which are separated by insulation and are in sliding engagement with a plug 10 and a sleeve through which current is led to the lamp. The position of the lamp-holder may be adjusted by means of a handle 8.
Patent GB-810760-A (GB)
Title: A method for the preparation of a fertilizer containing urea and ammonium sulphate, with a high nitrogen content
IPC: C05C13/00
Filed: 1957-07-12
Abstract: A fertilizer which contains urea and ammonium sulphate is produced by adding sulphuric acid and ammonia to an aqueous solution of urea under such conditions that the heat of neutralisation will remove the main portion of the water contained in the reaction mixture, the reaction temperature not exceeding 140 DEG C.  Urea solutions obtained in the synthesis of urea are suitable for use.  Preferably the ammonium is added as a gas admixed with other diluent gases and consequently keeps the reaction mixture in a state of agitation.  The process, which may be operated at reduced pressures, may also be carried out as a continuous process.
Patent GB-285448-A (GB)
Title: An improved ironing and pressing machine
IPC: D06F69/04
Filed: 1927-08-23
Abstract: 285,448. Naamlooze Vennootschap Machinefabriek Reineveld. Feb. 17, 1927, [Convention date]. Ironing-machines with reciprocating irons; ironing-machines with hand-operated irons.-In an ironing-machine in which the iron 1 is suspended from a carriage 2 which can be moved manually along a track in its supporting member 3 in a direction transverse of the work table 4, the supporting member is reciprocated by power longitudinally of the work table. The supporting member is guided along tracks. 5 in a guide-member 13 which carries also an additional pair of parallel tracks 11, 12 which are engaged alternately by a gear or friction wheel 10 driven by an electro-motor 8 through reduction gear 9. The motor and associated gear are pivoted at 16 on the support 3, and are manually rocked about the pivot by manipulation of a handle 18 to move the gear wheel 10 into engagement with the appropriate track. A spring maintains the gearwheel in its neutral position on release. In a modification, the motor and gear may be rigidly secured to the supporting member 3, and the tracks are then pivoted in the guide member 13, manually operated means being provided to rock them so that one or other engages the gear wheel. Alternatively a single track and a reversible motor may be used. The guide member is pivoted at 20 so that, by operation of pedals 22, 23, the iron may be raised and lowered.
Patent GB-254553-A (GB)
Title: Improvements in and relating to steam boilers
IPC: F22B17/16
Filed: 1925-09-04
Abstract: 254,553. Babcock & Wilcox, Ltd., (Babcock & Wilcox Co.). Sept. 4, 1925. Water-tube boilers.-In a boiler built up of sections each comprising an upper drum and groups of uptake and downtake headers connected by tubes, each section is so connected to an adjacent section that some of the water in its circulation through the section is diverted into the adjacent section in order to equalize the concentration of solids in the sections. In'a boiler of the Babcock and Wilcox type comprising sections each having a number of downtake and uptake headers connected to a longitudinal drum 14, Fig. 2, downtake connecting tubes 132, 133 of adjacent sections divert water from the drum of each section into one of the downtake headers 11 of the adjacent section. In a modification, pipes 20, Fig. 4. opening beneath splash plates 18 lead water from the front of each of the drums into rear of the adjacent drum. Each pipe may project downwardly through a splash plate, pass rearwardly for a short distance, and then pass out into the side of the adjacent drum.
Patent GB-460905-A (GB)
Title: Improvements in holders for cosmetic, rouge and like sticks or crayons
IPC: A45D40/02
Filed: 1935-08-06
Abstract: 460,905. Holders for cosmetic and other pencils. GARREAU, L. Aug. 6, 1935, No. 22196. [Class 18] A holder for cosmetic, rouge, lip-stick, crayons, pencils, &c. of metal or alloy or other material and of circular or polygonal crosssection, comprises, in the form shown in Figs. 3 and 11, a sheath 1 slotted at 3 and containing a stationary annulus 17 with inclined slots 16, a movable annulus 6 carrying an actuating stud 7 and a socket 4 for the cosmetic &c., and a plate 13 which normally covers the slot 3 and prevents movement of the annulus 6 by the engagement with the annulus of shoulders at the lower end of the plate 13. A cap 8 which normally closes the open upper end of the sheath 1, is pivoted through holes 11 to the housing 1 and also to the plate 13 so that when pressed in the position shown in Fig. 11, pins 15 on the plate 13 move down slots 16 so that plate 13 moves inwards and releases the annulus 6 which can then be raised by the stud 7. In the form shown in Figs. 13, 15, 16, 17, the slot 3 is obturated by a slide 13 which rests on a spiral or-other spring 21 and is pressed down by the shank 9 of the cap 8. The cosmetic &c. is held in a carrier 4 having a pin 5 passing through an inclined slot 22a of a rotatable sleeve 22 and through a straight slot 20a of a fixed sleeve 20. Pins 11 on an arch-shaped yoke 10 carrying the cap 8 also pass through slots 22a, 22b and 20b, 20c in the sleeves 22, 20 respectively. Downward movement of the cap 8 from the position shown in Fig. 13 rotates sleeve 22 and extrudes the pencil carried in the holder 4.
Patent GB-516849-A (GB)
Title: A new or improved fluid flow indicator
IPC: G01F1/26
Filed: 1938-07-27
Abstract: 516,849. Indicating fluid -flow. ECONOMIC WATER SOFTENERS. Ltd., and GOLDER, H. C. July 27, 1938, No. 22281. [Class 69 (i)] A counterbalanced flap c<2> pivotally mounted below a spout or the like p indicate that the flow has exceeded a predetermined amount by overbalancing from a position normal to the stream to a position out of the stream. In the form shown, the flap is balanced by an adjustable counterweight d<1> on a bent arm e<1>, and is pivotally mounted in a bracket n clamped to the spout. The edges of the flap are rounded so that fluid flows off it with a minimum of splashing. In another form, the spindle of the flap is carried in anti-friction beairns carried by a receptacle below the spout. The Provisional Specification describes modified means for mounting the flap, and refers to the use of a pointer or coloured indicating strip carried by the flap-supporting arm or spindle to indicate its position, in addition or alternatively to which the movement of the flap may close the circuit of an electric bell or other warning device.
Patent GB-227766-A (GB)
Title: Improvements in surface condensers
IPC: F28B1/02
Filed: 1924-09-22
Abstract: 227,766. Brewer, G., (Engineering Development Co.). Sept. 22, 1924. Surface condensers.-The tubes of a surface condenser are of different cross-sections, those nearer to the steam inlet being larger than those nearer to the condensate outlet, the smaller tubes being more closely spaced than the larger. The condenser is divided into three compartments by converging partitions 37, 38, 39, 40 and in each compartment are three sets of tubes. The sets 41, 44, 47 are closest to the condensate outlet and consist of the smallest tubes. Outside them are sets of larger tubes 42, 45, 48, and outside them sets of still larger tubes 43, 46, 49.
Patent GB-531780-A (GB)
Title: Improvements in or relating to electron multipliers
IPC: H01J43/28
Filed: 1939-08-01
Abstract: 531,780. Electron multipliers. LORENZ AKT.-GES., C. Aug. 1, 1939, No. 22322. Convention date, Aug. 3, 1938. [Class 39 (i)] The leads z<SP>2</SP>-z<SP>5</SP> to the electrodes in an electron multiplier pass through stepped portions of the envelope base in concentric circles.
Patent GB-261865-A (GB)
Title: Improvements in locks or fastenings
IPC: E05B55/00
Filed: 1925-09-07
Abstract: 261,865. Oakley, E. C. F. Sept. 7, 1925. Locks, cases for; lock mechanism, lever-type; keyhole escutcheons. - In a lock of the pintumbler type adapted to be fitted to a door as a mortice lock by securing the part carrying the latch in a bore at right-angles to a bore receiving the coacting part or key mechanism, the looking bolt is connected to the key mechanism by a part which is adjustably mounted on the bolt. The spring-pressed bolt 1 slides in a sleeve 3 in a bore cut in the door, and is actuated by its adjustably hooked catch 9 being engaged by a member 21 rocked by a finger 17 of the roll-back 14 turned by a key or knob. The key mechanism is secured in the door by screwing the threaded end 22 of the knob spindle into the tubular extension 15 of the tumbler case, which is inserted from the other side of the door. The latch may be held retracted or locked by a projection on a swing arm taking into a notch in the roll-over mechanism. In Fig. 6 showing a section of a lock operated from either side by a long key the bolt 31 is actuated bv a connecting rod link 37. 'The key mechanism is secured to the door by a plate 43, secured by screws 44 and covered by an escutcheon plate 45 secured by a long pin 47 passed through from the edge of the door.
Patent GB-719508-A (GB)
Title: Lawn mower power drive
IPC: A01D34/56
Filed: 1952-09-05
Abstract: 719,508. Lawn-mowers. SETTLER, M. Sept. 5, 1952 [June 10, 1952], No. 22378/52. Class 6 (2) A motor 39 for driving, by means of an endless belt 43, the cutter cylinder 16 which, in turn, drives the ground wheels 4, is mounted on a plate 35 pivoted on a spindle 29 between the shafts of the motor and cylinder so as to enable the tension of the belt to be adjusted. The connection between the cylinder and ground wheels is by ratchet clutches which can be removed and reversed, a reversing switch for the motor being also provided for enabling the direction of rotation of the cylinder to be reversed for sharpening purposes.
Patent GB-299941-A (GB)
Title: Improvements in or relating to blast furnaces
IPC: C21B5/00
Filed: 1927-08-25
Abstract: 299,941. Dovel, J. P. Aug. 25, 1927. Casings, linings, and walls; cooling; charging.-In a blast furnace in which the refractory lining is maintained by the deposition of constituents of the furnace charge about cooling- elements 7 projecting inwardly from the stock shell 6 into the original lining 5, the charge is so distributed over the cross-section of the shaft that it is more permeable to the ascending gases at the periphery and centre than in the intermediate zone. The' charging-hopper 11 is closed by a bell 12 the area of which is about one third that of the upper end of the shaft, this arrangement producing, as shown in Fig. 1, a distribution of the charge in which zones of coarser constituents at the periphery and centre are separated by an intermediate column of finer particles. The elements 7 are fitted with inlet and outlet nipples 25, Fig. 3, for' water circulation and are carried by mounting- frames 21 adapted to be detachably secured by bolts 24 in openings 23 cut in the furnace shell 6. Fig. 3 shows the original lining 5 partially worn away and replaced by a lining 28 formed of constituents of the furnace charge collected around and supported by the cooling-elements 7. The latter may be used, by insertion in the affected part, to repair " hot spots." The upper part of the furnace is formed of an outer casing 8 which supports detachable wear-plates 9, the latter being separated from the outer casing by a layer of refractory material. To prevent the escaping gases entraining dust, the inward inclination of the shaft is reduced to retard the rate of flow of the ascending gases, a suitable taper being 0.375 inch per foot height. The bosh 4 is water-cooled by panels 16 and elements 17, and the hearth 3 is surrounded by a cast-iron jacket 18 set in a well 19 filled with water.