baber/WOPTO huggingface dataset:
Patent GB-147917-A (GB)
Title: Improvements in or relating to presses particularly adapted for cutting out boot or shoe parts
IPC: C14B5/00
Filed: 1920-07-09
Abstract: 147,917. British United Shoe Machinery Co., (Assignees of Ballard, M. H.). Nov. 24, 1917, [Convention date]. Cutting-out apparatus.-In presses of the type described i n Specification 22023/05, the connexion between the pillar carrying the press-head and the shaft that works inside it and reciprocates it, is arranged at the top, so that should the press jam, the parts may be readily reached and freed. The pillar 13 which carries the press-head 14 is worked, as usual, by the shaft 15 reciprocated by links from an eccentric. It is connected to the shaft by a screwed sleeve 25 arranged between the collar 26 and a stop 27, which consists of a split collar cramped on the shaft by the bolt 33. The sleeve 25 can be rotated, to adjust the pillar on the shaft, by the hand-wheel 28 keyed at 29 to the sleeve, the wheel resting on a drum 30 keyed at 31 to the upper end of the pillar 13. The stop 27 has a block 34 pinned to it which is threaded for an adjustable stop 36 resting on the top of the shaft 15. To adjust the parts, and to free them in case of jamming, the bolt 33 is loosened, and tightened up again when the adjustments have been made.
Patent GB-311593-A (GB)
Title: Improvements in or relating to furnace firebrick fittings
IPC: F27D1/14
Filed: 1928-07-10
Abstract: 311,593. Hawthorn, Leslie, & Co., Ltd., R. & W., and Paterson, G. July 10, 1928. Walls.-The bolts securing fire bricks in place in a furnace are protected from the heat of the furnace by forming in the fire-brick 1 above the head of the bolt 2 a dovetailed recess in which is placed a plug 4 of like conicity to the recess with a lining 3 of fire-clay between the plug and wall of the recess.
Patent GB-1218892-A (GB)
Title: A cash register including an operational control device
IPC: G07G1/10
Filed: 1969-04-21
Abstract: 1,218,892. Change calculating device. NATIONAL CASH REGISTER CO. 21 April, 1969 [26 April, 1968], No. 20120/69. Heading G4T. A cash register, including a totalizer which can record the amount due, the amount tendered and the change owing in a sales transaction, includes a control device which, when the amount tendered is less than the amount due, halts a subsequent machine operation until a specific register key is pressed. The amount due is entered, then the amount tendered, and an Amount Tendered control key initiates a charge calculating operation during which sensing fingers 62 are disengaged from totalizer control plates 52, associated with an overdraft mechanism and sensing zero notches in the add pinions of the totalizer. When the operation is complete the sensing fingers re-engage the plates 52 and, if the amount tendered equals the amount due, sense notches 55 on plates 52 block detent 67 in position 1A. If the amount tendered is more than the amount due the totalizer is in a negative condition, and if the amount tendered is less than the amount due the totalizer is in a positive condition. In both cases the sensing fingers do not engage the notches 55 on plates 52 and the spring-driven detent 67 moves to one of two different engagement positions with a control member corresponding to positions 2A and 3A respectively on Fig. 7. A detent 69, connected to detent 67, extends along the control keys 1 to 9 and has a control detent 74 which moves with detent 69. When detent 67 moves to position 1A the key in position 1 is automatically depressed and zero change is printed on a receipt. When detent 67 moves to position 3A, detent 74 moves between the keys in positions 1 and 2, neither key is depressed and the register stops. The machine operator has then to press the key at position 5 and the balance due is printed on a receipt. If detent 67 moves to position 2A, the key in position 2 is depressed and a change dispenser operated.
Patent GB-641098-A (GB)
Title: Improvements in machines for ornamenting sheet material work
IPC: C14B5/00
Filed: 1947-07-25
Abstract: 641,098. Operating clutches. FREEMAN CO., L. G. July 25, 1947, No. 20128. Convention date, April 21, 1941. [Class 80(ii)] [Alsoin Groups VIII and XVI] A machine for ornamenting parts of boots and shoes &c. by cutting, perforating, or embossing operations as described in Specification 527,069, [Group VIII], is modified so as to permit a dwell in the operations when applied to operations comprising embossing, or branding by heat. This is effected by providing clutch-operating means in addition to the clutch described in the above Specification, and by operating this clutch the operator can control the time during which the work is held under pressure by the dies. The additional clutch-operating means may be put out of action so that the machine can operate exactly as in the prior Specification. The machine is started by depression of a treadle T which operates a lever 18 with a catch 19 to transfer motion via lever 20 and a link 21, freely mounted lever 22, pin 25 and rod 26 to an electromagnetic clutch A which controls the movement of the diecarriage 15 and moves it into register with the work-support 14. The die-carriage throws in a clutch 12 for driving the main shaft 11 by operating a lever 27, link 28, arm 29, and a tripping lever hook 30 which draws the tapered clutch wedge 31 out of the path of a clutch key 32. A second clutch control lever 38 fitted with a wedge 39 may be operated to throw out the clutch when the shaft 11 has made half a revolution only. The lever 38 is connected adjustably to a rod 35 provided with a pin 36 which may be connected to a notch 34 in the tripping lever when it is desired to cause a dwell in the operation. When not desired the rod 35 can be held in inactive position by a placing the stud 36 in one of the grooves of a fixed stud 42. The wedge 39 holds the clutch in inoperative position until the treadle T is again depressed so that the period of dwell is under the control of the operator The work support is raised by toggle mechanism 13 actuated by the shaft 11.
Patent GB-844363-A (GB)
Title: Improvements in and relating to electric control systems for a plurality of direct current motors
Inventor: HAMMOND RICHARD
IPC: H02P7/30
Filed: 1955-07-12
Abstract: 844,363. Automatic speed-control systems. ENGLISH ELECTRIC CO. Ltd. Oct. 9, 1956 [July 12, 1955], No. 20136/55. Class 38 (4). In a system for a plurality of D.C. electric motors arranged to drive independent consecutive sections of a material treating machine, which includes for each motor a speed reference regulator, a speed signal generator, and means whereby the speed is maintained in accordance with the setting of the regulator, the regulating means is also responsive to a third electrical quantity dependent on the load in a manner such that for any given setting of the speed reference regulator the speed of the motor decreases as the load increases, and there is provided for each motor, manually controlled field-regulating means and means arranged to reduce the magnitude of the third electrical quantity for any given value of motor load as the field excitation of the motor is reduced by the manually controlled regulating means. The speed of series motor 10a is controlled in accordance with the energization of an auxiliary field winding 10d by the difference between a reference voltage applied to leads 18 and 12 and the output of tachometer generator 17. The error signal is applied to the control winding 15b of a magnetic amplifier 15 which includes a further winding 15a opposed to the control winding and energized in accordance with the armature current. Ganged potentiometers 13, 16, 19 which are set according to the desired speed adjust the main motor field to a value such as will produce the required speed, reduce the effect of the winding 15a at lower speeds, and reduce the tachometer field 17b respectively. A stabilizing feedback field is also provided. The arrangement which is stated to be useful in a steel rolling mill is said to improve the speed regulation by increasing the error signal in response to load changes. In a modified arrangement described control is effected by a booster in the armature circuit.
Patent GB-1193472-A (GB)
Title: Xerographic Process
IPC: G03G13/04
Filed: 1967-05-01
Abstract: 1,193,472. Xerographic plates. RANK XEROX Ltd. 1 May, 1967 [2 May, 1966], No. 20137/67. Heading H1K. [Also in Divisions C7 and G2] Xerographic plates have a photo-conductive vitreous arsenic-selenium alloy layer containing up to 50% arsenic coated on a conductive substrate, e.g. aluminium, brass, stainless steel or conductively coated plastic or glass. Specified As-Se alloys contain 17, 20, 33 and 50% As. The plates are made by fusing arsenic and selenium together at 750-900‹ F. and vacuum depositing the mixture on to the support.
Patent GB-337439-A (GB)
Title: An improved method and apparatus for utilising fluid-pressure in supplying and storing energy
IPC: F03G5/00
Filed: 1929-07-01
Abstract: 337,439. Salenius, E. G. N., and Salenius, (nÚe Lagerlof), E. S. July 1, 1929. Compressed-air engines; vacuum engines. - Apparatus for storing and supplying energy comprises a bell or receptacle 1 which communicates with a tube comprising windings mounted between plates 3 4 movable relatively upon guides 5 fixed to the lower plate 3 or to a stationary base. The plates carry horizontal rods 6, 7 and these have transverse shafts carrying pulleys over which two chains, ropes or wires 12, 13 run in a zig-zag manner, the ends of the chains, &c., being fixed to reels 14, 15, 14<1>, 15<1> on shafts 30, 31. The rollers 14, 15 are connected by a belt engaging pulleys associated therewith. A crank 32 is attached to roller 14<1> and a toothed wheel is attached to the shaft 31 and meshes with a pinion 19 on a shaft 20. When the roller 14<1> is rotated by the crank in a counter clockwise direction, the plate. 4 is brought towards the plate 3 and compressed fluid is forced from the tube 2 into the receptacle 1. When the rollers 14, 14<1> are released, the tube 2 raises the plate 4 and rotates the driving-shaft 20. In a modificafion, a single central upright is substituted for the two uprights and the plates are ring-shaped. In a further modification the plates are elliptical. In a fourth modification, parallel tubes are arranged above one another between plates carrying shafts with rollers. A construction is described with a metal-reinforced spiral tube. The metal may be arranged in the tube cover. Rack and toothed wheels or screws may be used instead of pulleys, and suction may be used in lieu of compressed air.
Patent GB-386894-A (GB)
Title: Improvements in or relating to the dyeing of hosiery
IPC: D06B3/08
Filed: 1932-07-16
Abstract: <PICT:0386894/IV/1> Textile goods, particularly stockings &c., are suspended from bars 7 on a rocking frame 6 over a dye vat 5.  The goods are packed close together and enclosed by a wire frame 21 or by end bars so that on rocking the frame by hand or driving means 22, the dye liquor will be forced upwards through the goods and give an even dyeing.  A pause occurs at the end of every stroke during which the goods are raised.
Patent GB-1520586-A (GB)
Title: Method of exposing stripe like areas to light
IPC: G03F1/00
Filed: 1976-05-17
Abstract: 1520586 Photographic masking SONY CORP 17 May 1976 [20 May 1975] 20295/76 Heading G2A In a method of printing spaced parallel stripes on a photo-sensitive surface, of the kind using a mask with fewer and shorter stripes than are required, the mask being moved continuously parallel to the stripes and, between such movement perpendicular to the stripes, used a mask with a lozenge-shaped pattern 23, Fig. 5, of transparent stripes 21, wherein stripes 21b-Zf decrease in length progressively from a central stripe 21a to opposite corners of the pattern 23, and during printing each longitudinal movement of the mask is less than the longitudinal dimension L of the pattern so that the stripes are uniformly exposed. The mask is made as usual, photographically from a large scale drawing, to form light-transmitting stripes thereon. The image of the mask is optically projected on to a photographic surface which is mounted on a carrier which is movable in an X- direction, parallel to the stripes, and in a Y direction, transverse to the stripes. The photographic surface is subsequently processed and used as a mask in a photo-etching process in the manufacture of e.g. an electronic storage tube. As shown in Fig. 7, the mask 22 initially occupies a position 22, relative to a photographic plate 24, and moves relatively to the plate to a position 22' 1 . During this movement an optical shutter opens and then closes. After return in the X-direction, the mask is moved in the Y direction by a distance (1/2<SP>n</SP>) W, wherein W is the width (in the Y-direction) of the pattern and n is an integer, in the case illustrated 1/ZW, to a position 22 2 . The next movement is to position 22' 2  with the shutter open, until the operation is complete with the mask at position 22' 5 . Because of the varying lengths of the lines on the mask 22, the stripes 25 on the plate are evenly exposed. Moreover, each stripe 25 is the result of two exposures in separate scans of the mask. If there is inaccuracy in the Y-direction movements of the mask, the exposed stripes of on the plate each consist of two overlapping stripes. The exposure and processing are so arranged that only the parts where two stripes overlie each other is rendered transparent in the final mask for photo-etching, and by this means the pitch of the stripes 25 is rendered more even. As so far described, in the expression (1/2<SP>n</SP>)W, n=1. When n >1, the number of scans for complete exposure by the pattern is 2<SP>n</SP>. See Fig. 10, (not shown). The pattern may have other envelope shapes, e.g. a halt-lozenge, Fig. 11 (not shown) or a parallelogram, Fig. 12 (not shown), or there may be two equal central stripes, Fig. 13 (not shown). After completion of exposure the plate may be turned through 90 degrees for another exposure, to produce a checkered pattern.
Patent GB-356856-A (GB)
Title: Improvements in or relating to control gear associated with stop valves
IPC: F01D21/18
Filed: 1930-07-04
Abstract: 356,856. Engine stop-gear. SIEMENSSCHUCKERTWERKE AKT.-GES., Siemensstadt, Berlin. July 4, 1930, No. 20377. Convention date, July 5, 1929. [Class 122 (iv).] A control gear for large steam driven machines comprises several rapid action stop valves connected in parallel, one of which is adapted to close automatically by a spring under the control of liquid pressure controlled by emergency auxiliary gear, while the remaining valves are provided with hydraulic gear controlled by hand whereby they are adapted to be closed gradually in addition to the control by emergency auxiliary gear whereby they are enabled to close rapidly under the action of a spring. The valve 1 is opened and held open agains the action of a spring by liquid pressure supplied through a pipe 13, the opening being regulated by a hand-wheel 50. The valve 2 is loaded by a spring 18 and is opened by liquid pressure acting on a piston 17 under the control of a relay piston valve. The relay valve comprises a pair of pistons 26, 27 connected by a spindle 25 and operates to connect the pressure chamber 21 either to the pressure supply pipes 19 or to the exhaust 24 and spring chamber 22. To operate the valve slowly the control valve 30 is turned to admit pressure from the pipe 13 to the space above the piston 26, when the spring 28 gradually moves the valve to shut off the pressure supply and open the exhaust. To close the valve rapidly the pressure is relieved in the pipe 19 by auxiliary emergency gear.
Patent GB-829526-A (GB)
Title: Improvements in or relating to barrels
Inventor: THORKILDSEN PER
IPC: B65D8/18
Filed: 1958-06-25
Abstract: 829,526. Containers. FINERLAMINATER A. S. June 25, 1958, No. 20436/58. Class 66. A barrel comprises a plywood shell 1 and a flanged closure 4 for each end, the shell having grooves 3 which decrease in depth axially inwards of the shell, the rim of the closure 4 tapering inwards, so that when forced home it forms a seal with the grooved portion of the shell, and one of the closures 4 having at least one closeable aperture to allow air in the barrel to escape when the closure is applied. The grooves 3 may be separate from one another or formed as a screw thread ; and the shell 1 may have stiffening rings 2. As shown, the closure has a screw threaded hole 9 and bung 10, and is preferably made of compressed fibres, e.g. wood chips, which are pressed in a mould after an adhesive has been added, whereby the closure is made slightly elastic.
Patent GB-575323-A (GB)
Title: Improvements in injection moulding machines for thermosetting materials
IPC: B29C45/26
Filed: 1943-12-08
Abstract: 575,323. Injection-moulding machines. WINDSOR, R. H., and GASPAR, E. Dec. 8, 1943, Nos. 20514/43 and 852/44. [Class 87 (ii)] A machine of the type having two relatively movable platens is convertible from a condition suitable for end sprue moulding to a condition suitable for split centre sprue moulding. The injection plunger 17 is fixed to a cross-head 18 slidable on vertical columns 19, and is reciprocated by means of toggle links 21, 22 and a manually-operated lever 24. The injection cylinder bore 16 is formed in a block 15 secured to the platen 13, and is electrically heated. Reciprocable within the bore are the plunger 17, and a plunger 39 which has two functions, viz. : (1) to hold a pellet of (thermosetting) moulding powder in a cavity (44, Fig. 6, not shown) at its upper end, and (2) to break off the residual cured material 45 in the cylinder bore from the sprue 47. The plunger 39 is slidable in a cross-bar 38 attached to the crosshead 18 by bolts 37, and is urged downwardly by a compression spring 43 acting on abutments 143 and 41. Operation : (1) The cross-head 18 is raised, thus raising the plungers 17, 39 (the cross-bar 18 works between abutments 41 and 42). (2) A pellet of powder is placed in cavity 44 and the moulds 26, 28 are closed. (3) The cross-head 18 is lowered and the powder, rendered plastic by the heated cylinder, is forced by the plunger 17 through an aperture 35 into the moulds, the plunger 39 coming to rest on a shoulder 140 in the cylinder bore, as shown. (4) After a time sufficient for curing, the cross-head 18 is raised and the moulds are opened, the moulded article 34 being ejected from mould 28. In order to ensure that the article will cleave to mould 28, a recess 46 is formed in that mould. If the sprue breaks off and sticks in the passages 35, 36, it is dislodged by pushing in a plunger 51. The cylinder bore 16 may be-formed integrally with the platen 18 or with the mould 26 fixed thereto. To convert the machine to split centre sprue moulding, the rods 37 and plunger 39 are detached from cross-head 18, platen 13 is moved to the right (Fig. 8) on its four horizontal tie bars 11 by adjusting nuts (not shown) on the bars, the moulds 26, 28 are replaced by moulds 126, 128, and movable platen 12 is adjusted to ensure proper closing of the moulds. The platens may move vertically and.the plunger 17 horizontally. A pair of moulds may be mounted on each platen, each pair having its own injection plunger, as in Specification 571,071. The platens may each be split in two, each part carrying a mould and having an independent operating mechanism, so that different curing times may be used for the two moulds.
Patent GB-186759-A (GB)
Title: Improvements in and relating to cylinder grinders
IPC: B24B5/06
Filed: 1921-08-02
Abstract: 186,759. Kosmos, H. Aug. 2, 1921. Round holes, enlarging and trueing; balancing rotating tools.-A cylinder grinder wherein a grinding-wheel 15 is moved in an eccentric path comprises a support 1 carrying a sleeve 3, which is rotated by gears 4, 6, and is provided with end blocks 9 having diametrical slotted dovetail guides 10, 19. The grinding-wheel is mounted on a spindle 14 rotatable in blocks 12, 17 slidable on the guides 10, 19, and is driven by an electric motor 16 carried by the block 17. The blocks 12, 17 and therewith the spindle 14 are radially adjustable by a handle 25 mounted on a shaft 24, which through worm gearing 23, 27 rotates internally-threaded sleeves 21, 28 engaging screws 20, 29 secured to the blocks. The sleeve 21 is externally threaded to engage a balancing-weight 30 slidable on the guide 10. Power is supplied to the motor 16 from leads 58, 59 through brushes 49, 50 contacting with rings carried by the motor. The brushes are secured to an arm 53 having pin-and-slot connection with an arm 56 secured to the support 1. Graduations on a disc 37 mounted on the shaft 24 and on a disc 33 secured to the sleeve 3 form a gauge for adjusting the grinding-wheel.
Patent GB-154312-A (GB)
Title: Improvements in memorandum devices for use in connection with telephones and other purposes
IPC: B42D19/00
Filed: 1919-08-22
Abstract: 154,312. Hattersley, J. M. Aug. 22, 1919. Memorandum appliances.-Consists of a paper roll memorandum device for use with telephones and for similar purposes with an adjustable clamp for attaching the device to a sloping desk. The main portion of the device consists of a sheet metal plate forming a holder 1 for the paper roll and a plain writing surface 7. The roll is mounted on wire 3 passing through the fixed end 2 of the folder and the removable end 3, a nut 6 securing the latter. The edges of 7 are turned over, forming guides for the paper 9 and grooves 8 for the prongs 11 of the adjustable wire clip 13. The device is clamped to a sloping desk or the like between the hook-like projections 12 of the adjustable clip and the curved portion of the metal plate. A bridge-piece 10 secures the free end of the paper.
Patent GB-441377-A (GB)
Title: Improvements in or relating to high frequency signalling systems
IPC: H05K9/00
Filed: 1935-07-19
Abstract: 441,377. Preventing inductive disturbance. LORENZ AKT.-GES., C., Lorenzweg, Tempelhof, Berlin. July 19, 1935, No. 20618. Convention date, Aug. 8, 1934. [Class 40 (iv)] In high-frequency transmission over a cable comprising spaced concentric conductors, the high-frequency apparatus at the receiving station and optionally that at the transmitting station is enclosed in a screen connected to the outer conductor of the cable. As shown, the receiver comprises a highfrequency portion E coupled to the cable by a transformer K and feeding the low-frequency portion N through a transformer T. The screen A about the portion E is connected to the outer conductor R and is completed by a shield W between the windings of the transformer T. The invention is applicable to cables comprising a number of pairs of concentric conductors.
Patent GB-531275-A (GB)
Title: Improvements in or relating to brakes for cycles
IPC: B62L3/00
Filed: 1939-07-15
Abstract: 531,275. Cycle hubs. CLARK, A. L. July 15, 1939, No. 20627. [Class 136 (ii)] [Also in Group XXXIV] In cycle wheel hubs that are provided with a brake drum or casing 15 the hub bearing boss 22 at that end of the axle 10 adjacent the casing extends beyond the closure plate 23 of the. casing so as to prevent entry of oil into the casing and whereby the bearings 20, 23 are substantially symmetrically disposed relatively to the central plane of the wheel. Further, to prevent the entry of oil to the casing, an annular groove 24 is formed on the boss 22 and a washer 25 is provided. The axle extends through the raised middle part 27 of a bracket secured by end parts to the plate 23. The bracket has also an arm 29 by which the bracket and plate are anchored to the cycle frame and in which is mounted the sheath of a cable connected to the brake cam lever, the shaft of which passes through a part of the bracket. According to the Provisional Specification, an annulus of channel section is formed on the closure plate adjacent the bore provided therein for the bearing boss.