baber/WOPTO huggingface dataset:
Patent GB-425264-A (GB)
Title: Improvements relating to inertia starters for internal combustion engines
IPC: F02N99/00
Filed: 1934-04-24
Abstract: 425,264. Turning - gear. CIRRUSHERMES ENGINEERING CO., Ltd., and CAPLE, A. H., Brough Aerodrome, Brough, Yorkshire. April 24, 1934, Nos. 12290 and 17585. [Class 7 (v)] An engine starter includes a flywheel 1 rotated by an electric motor and driving through an epicyclic gear train a pinion 13 movable at will into mesh with an engine gear 22, the pinion being in threaded connection with a member of the epicyclic train and means under manual control being provided to resist or arrest its rotation in order to ensure its axial movement into mesh with the gear 22. As shown, the electric motor comprises a stator 2 secured to the starter housing 3 and a rotor 4 mounted on a tubular shaft 5 rigid with the flywheel 1. A pinion 6 on the shaft 5 meshes with stepped planet wheels 7 rotatable on a carrier 10 and meshing with a stationary toothed ring 8, which is mounted between friction rings 12 on the housing 3 in order to allow slip under excessive load. The carrier 10 is journalled in ball bearings 11 and is internally threaded to engage a threaded spindle 14 supporting the starter pinion 13, which is connected to the spindle by a one-way ratchet clutch 17 loaded by a spring 18. The pinion 13 is normally held out of engagement with the engine gear 22 by a spring 21 interposed between a shoulder 19 on the carrier 10 and a head 20 on a shaft 23 secured at 24 to the spindle 14 and extending through the tubular shaft 4. A ratchet wheel 28 on the rear end of the shaft 23 is engaged by a spring-controlled detent 29 pivoted at 30 on the motor housing and having an arm 33 in engagement with a cam notch 34 in a hand-actuated rod 35 carrying a contact member 37 for closing the circuit of the starting motor. On operation of the rod 35 to close the circuit, the detent 29 is first allowed to engage the ratchet wheel 28 and then disengaged just before the circuit is closed. When the motor has attained the required speed, the rod 35 is released and a spring 40 moves it into a position in which the circuit is broken and the detent 29 engages the ratchet wheel, arresting rotation of the spindle 14, so that the pinion 13 moves axially into engagement with the engine gear 22 until the shoulders 14<a>, 10<a> are in contact, when rotation is imparted to the gear 22. When the engine starts, the ratchet clutch 17 allows the pinion 13 to be driven freely by the engine. In the starting position, the detent 29 is brought by its spring 31 into the space between the ratchet wheel 28 and the motor housing 27, holding the shaft 23 against movement in a direction to disengage the pinion 13 from the gear 22. The engine having started, the operator pushes the shaft 35 into the initial position, moving the detent 29 clear of the ratchet and allowing the spring 21 to disengage the pinion 13 from the gear 22. Specification 417,128 is referred to in the first Provisional Specification.
Patent GB-1498861-A (GB)
Title: Method for the manufacture of masters for printed circuit
IPC: H05K3/00
Filed: 1975-03-25
Abstract: 1498861 Masters for printed circuits SIEMENS AG 25 March 1975 [26 March 1974] 12322/75 Heading G2X  A master for printed circuit boards is prepared by plotting a variable conductor pattern on to a photo-sensitive layer, contact printing an invariable standard conductor pattern thereon and developing the layer. The method is used for producing masters which are used to make multi-layer circuit boards, each circuit having a standard invariable part which includes the grid intersections &c. and a variable part which comprises the signal lines. The standard invariable conductor pattern is plotted on to the light-sensitive layer of a first glass plate using a computer controlled plotter. The image is developed and contact printed on to the light-sensitive layer of a third glass plate, the layers being in contact, to give a mirror-symmetrical image of the standard pattern. This image is then developed. The variable conductor pattern is plotted on to the light-sensitive layer of a second glass plate, again using the computer controlled plotter. Then the second and third plates are superimposed with their layers in contact and the developed mirror-image of the standard pattern is exposed on to the latent image of the variable pattern. Finally the second plate is developed to give the master, which comprises both the standard and the variable pattern. Each plate is aligned in the plotting and exposing apparatus by two of its mutually perpendicular edges engaging pins; the engaging edges may be ground on have half-round steel rods. Alternatively holes in the plate engage dowels.
Patent GB-167544-A (GB)
Title: Improvements in moulds for use in casting pans and other similar hollow articles in aluminium and aluminium alloys
IPC: B22D21/00
Filed: 1920-05-04
Abstract: 167,544. Aluminium Works, Ltd., and Santiago, M. C. May 4, 1920. Moulds; clamping moulds; cores.-Moulds for casting hollow-ware and lids in aluminium or aluminium alloy have a tapering runner entering the mould at the bottom centrally. A mould for a pan comprises halves, hinged at 9 and clamped by hinged bolts 12, 13 and nuts 16, 17 carried by handles, and a core 2 supported by wedges 43 adapted to rest in the conical mouth 29 of the mould. The mould cavity is tapered from top to bottom and centre 21 and is there connected to a tapered runner 4. To avoid the necessity of heating or cooling, the walls of the mould and core have a thickness equal to that of the mould cavity and are strengthened and connected to the runner &c. by thin and pierced flanges 22, 26, 50 to avoid uneven temperature. The recess 32 for the handle socket is closed by a plug 34 adapted to hold a screw 33, which becomes embedded in the metal. Handles 48 screwed in lugs of the core are adapted, when rotated, to engage lugs 47 on the mould and withdraw the core from the casting. In a modified mould for casting a flat lid, the core is replaced by a flat upper member 51 hinged at 66 to one half 65 and clamped at 71 to the other. This member also has a plug 78 to hold a screw 79 adapted to be embedded in the metal and serve for attaching a handle. The mould cavity is defined by a rib 72 on the member 51 having passages 73 for metal to pass into the annular space 74. This metal is subsequently removed. Mould and core materials.-The inner mould faces are coated with plumbago and vinegar or acetic acid.
Patent GB-201632-A (GB)
Title: Improvements in or relating to power plants
IPC: F01B17/02
Filed: 1922-05-02
Abstract: 201,632. Klech, S. May 2, 1922. Compressed-air engines.-A power plant comprises a steam-driven air compressor which supplies a tank from which compressed air engine cylinders are fed, and a series of water-jacketed cylinders which may be the engine cylinders. The steam cylinder may be supplied from the jackets, in which electric heating coils may be disposed. The apparatus shown comprises two series of water-jacketed cylinders 10, each series being cast in a block and the two blocks disposed in a V, the base of which is constituted by a casing containing a crank common to the two series. Heating coils supplied by a battery 17, Fig. 3, may heat the water in the jackets. In the space between the two series of cylinders is located a compressor comprising an air cylinder 19 and a steam cylinder 18. Air from the valve chest 21 of the air cylinder is led into tanks 23, and thence through pipes 26 to the middle cylinders 10<1> of the two series which constitute compressed-air engine cylinders. The other cylinders may be compressed-air or internal-combustion engine cylinders. Steam is supplied to the valve-chest 20 of the steam cylinder 18 from the water jackets through a pipe 29 fitted with check velves. The exhaust steam from the cylinder 18 passes to a condenser 32, Fig. 3, cooled by a fan 33 driven from the crankshaft 15 of the cylinders 10. From the condenser a pipe leads to a pump 34 by which the water is forced back to the jackets. The pump is driven through toothed gearing 49, 50 and a toothed wheel 47 on the worm shaft engaging a pinion 46 on a sleeve 40 loose on the shaft 15, this sleeve being clutched by a handle 56, rod 55, and lever 54 either to a clutchpiece 41 on the shaft 15 or to a pulley 43 driven from an electromotor 35. A spring switch 60 is adapted to be closed by a finger 59 on the rod 55 to complete the circuit through the battery 17 and the electromotor. A second spring switch 68 is interposed in the circuit, which is closed by the rod of a piston subject to the pressure in the water jacket.
Patent GB-510783-A (GB)
Title: New or improved means for ensuring uni-directional rotation of a shaft
IPC: B60T7/12
Filed: 1938-05-03
Abstract: 510,783. Preventing reverse movement of vehicles and shafts. HACKETT, A. G., and EDWARDS, J. L. May 3, 1938, No. 12517/37. [Class 103 (i)] [Also in Group XXIV] A ratchet and pawl device for ensuring uni-directional rotation of the shaft of a motor vehicle, lift &c., is provided with means for disengaging the pawl during rotation of the shaft in normal direction and, in the case of a vehicle, when the gear is put into reverse. Ratchet teeth 46 on a disc 18 secured to the shaft are engaged by a pawl 48 having a recess 50 with an inclined wall between which and the bottom of a groove 47 in the disc, is a roller 51 which when the shaft rotates in the direction of the arrow, disengages the pawl as shown. The pawl may be disengaged to permit reverse rotation of the shaft by a member 52 or by a peg disposed behind the roller 51 and adapted to push it to the position shown, movement of the pawl being limited by a stop 53. The disc may be mounted on a vehicle drive shaft in a casing secured to the rear of the gear-box, the pawl or pawls being disengaged by a tapered nose on a gear selector-rod when reverse gear is engaged, or by a hand-lever.
Patent GB-712604-A (GB)
Title: Improvements in or relating to natural-circulation steam boilers
IPC: F22B37/10
Filed: 1949-05-11
Abstract: 712,604. Water-tube steam boilers. ROSSI, G. May 11, 1949 [May 11, 1948], No. 12591/49. Class 123(2) A steam boiler comprises an assembly of elements each consisting of one or a group A of steamgenerating tubes 10 and a group B of downcomers 28, said elements defining, with a surrounding casing C, an inner combustion chamber D, a downflow gas pass 50, and a return gas pass 52 leading to an annular gascollecting chamber 55 provided with an outlet 56. The lower ends of the downcomers 28 of a group are fitted' with a junction piece 32 having an outlet nozzle 36 which is adapted to be held in abutting relationship with a mating nozzle 38 at the ends of inlet tubes 40 at the lower ends of the steamgenerating tubes 10 by a removable bolt 34 projecting through said junction piece 32 and nozzles 36, 38, the latter being provided with an interposed packing ring and an external centering sleeve 42. The upper ends of the steam-generatirig tubes and downcomers are similarly connected by removable bolts 16, 46, respectively, to pipes 15, 44 leading to and from the usual steam-and-water drum (not shown). The direction of flow of combustion gases from the chamber D to the outlet 56 is indicated by arrows. An economizer in the form of a helical pipe 53 may be disposed in the gas pass. 52 and also, if desired, in the pass 50. The steamgenerating tubes and downcomers have removable cleaning plugs 12, 45.
Patent GB-332915-A (GB)
Title: Improvements in or relating to coin-freed automatic machines
IPC: G07F11/20
Filed: 1929-04-23
Abstract: 332,915. Sigurdsson, O. V. April 23, 1929. Delivery of articles stored in piles; coin action, thrust. -The drawer f of a coinfreed machine containing a column of packages of sweet-meats &c. is normally prevented from being withdrawn by the engagement of a pawl d on the drawer with a pivoted rack a. If a coin of standard size is inserted through a slot g into a holder k so as to rest on a bar s carried by the rack, a ramp h on the bottom of the drawer depresses the coin and lifts the rack out of engagement with the pawl d. Testing coins.-The coin is held in the holder k between an end wall j and the short arm m of a spring pressed lever m, n carrying a push rod r which, if the coin is of standard diameter, is displaced to register with a gap q in a stop p carried by the drawer. The drawer may then be opened, a spring-pressed detent w on the drawer riding over a projection x on a bell-crank lever y, z, the small arm of which engages the holder k. On the drawer being closed, a cam 24, 25 on the lever m, n engages the gap q in the stop p and releases the lateral pressure on the coin, and the detent w simultaneously engages the projection x so as to rock the lever y, z and cause the holder to be deflected on its supporting springs 22 to allow the coin to drop into a collecting receptacle. If the coin is not of standard diameter, an attempt to open the drawer causes the stop p to engage the rod r and move it against the resistance of a spring u to engage the coinholder k, which is pushed beyond the bar s, so that the coin drops into a return shoot v. Instead of or in addition to testing the diameter of the coins the thickness of the coins may be tested by a disc 31, Fig. 8, carried so as to project into an aperture in the coin holder k by a lever 32, 33 which also carries a push-rod 34 coacting with the stop p in the same manner as the push-rod r. Delivering extra article periodically.-A bellcrank lever 26, 27 may be operated under predetermined conditions to support the rack a as shown in Fig. 5 and allow the drawer to be operated again without the insertion of the coin, the push-rod r being held opposite the gap q by a pin 29 on the lever.
Patent GB-788742-A (GB)
Title: Improvements in fastening means
IPC: F16B5/12
Filed: 1955-04-30
Abstract: 788,742. Releasable fastenings. TAYLOR, E., and SHIPP, R. Nov. 14, 1955 [April 30, 1955], No. 12609/55. Class 44 [Also in Group XXXII] Fastening means for securing a decorative moulding or other embellishment 8 to a motor car body panel 1 comprises a circular aperture 2 in the panel, a channel 11 in the moulding or other embellishment, a rubber grommet 3 having a portion 9 engageable with the panel aperture and of slightly greater diameter so that the grommet portion is compressed when in the aperture, a stud 6 having a shank 10 with a base 7 at one end and a head 9 at the other end, the grommet having a through hole 4 to receive the head and shank and the relative dimensions of the hole, head and shank being such that the head expands the grommet on the opposite side of the panel to the base, the base being adapted to engage the channel in the moulding or other embellishment. As shown the shank of the stud is tapered and when it is inserted in the grommet it compresses the grommet in the aperture to make a watertight joint. The head is of half ball shape with a shoulder adjacent the shank and this shape prevents the stud being easily withdrawn from the grommet. In a modification the head is of ball shape so that it can be easily withdrawn. The grommet has a flange 12 which is placed between the panel 1 and the embellishment 8. The flange may be circular or square in shape.
Patent GB-495073-A (GB)
Title: Improvements in coking retort ovens
IPC: C10B21/10
Filed: 1937-05-04
Abstract: 495,073. Coke ovens. KOPPERS CO. May 4, 1937, No. 12741. Convention date May 11, 1936. [Class 51 (ii)] In a vertically-flued underfired coke-oven of the kind described in Specification 448,282, in which small groups of flues 14 along the length of of a heating-wall are connected by cross-over flues 28 to corresponding groups in an adjacent wall, the gas distribution system comprises a pressure equalizing duct 17 for each group connected through a control valve 16 to a distributer header 15. As shown the headers run lengthwise of the battery so that groups of flues correspondingly-situated in the different heating walls are supplied from the same header, but they may be arranged transversely, so that one header supplies all the flues of a heating-wall. In a modification, Figs. 3 and 4, not shown, the equalizing ducts are formed in the brickwork a short distance below the heating-wall. Each of the connections between the header and the equalizing ducts includes a valve for the admission of decarbonizing air situated between the control valve and the equalizing duct. Specification 252,676, [Class 51 (ii)], also is referred to.
Patent GB-1342134-A (GB)
Title: Preparation of powder metallurgy compositions containing dis persed refractory oxides and precipitation hardening elements
IPC: C22C32/00
Filed: 1971-05-03
Abstract: 1342134 Sintered dispersion strengthened alloys SHERRITT GORDON MINES Ltd 3 May 1971 [22 June 1970] 12770/71 Heading C7D Sintered dispersion strengthened Ni-Cr-Al alloys optionally containing Ti, are made from a powder mixture of Ni-Cr alloy and a refractory oxide containing less than 1% oxygen other than that of the oxide, which is mixed with Ni coated Al or Ni-Al alloy powder and vacuum sintered to less than 1000 p.p.m. oxygen. Ti may be added as the hydride or a composite Ni coated powder. The oxides may ThO 2 , YO 2 , ZrO 2 , Al 2 O 3 , MgO and the ground mixture of Ni-Croxide is heated at 1800-2200F for 20-60 hours in H 2  to alloy and deoxidise the powders prior to mixing with the Ni-Al. A compacted billet is sintered at 2000-2200F at 5 x 10<SP>-5</SP> torr and then worked e.g. hot rolled to 0À020" strip, solution treated in H 2  at 2200F for 70 hours, water quenched and aged for 48 hours at 1300F in H 2 . The heat treatment and aging may be effected prior to working.
Patent GB-624432-A (GB)
Title: Condition-responsive electronic systems for exhibiting or control purposes
IPC: G01R17/04
Filed: 1946-04-29
Abstract: 624,432. Valve receiving circuits. TRIGGS, W. W. (Great American Industries, Inc., and Keinath, G.). April 29, 1946, No. 12880. [Class 40 (v)] [Also in Group XXXVIII] A condition responsive device forms part of an A.C. bridge which is cyclically traversed from extreme positive to extreme negative unbalance to produce an A.C. output which passes through zero with change of phase at the point of balance, and this output is amplified, rectified and used to control a tube to change its conductivity at the point of balance, the tube actuating control or indicating apparatus. An impedance 1, Fig. 1, variable by the condition to be recorded (e.g. temperature or pressure) is connected with resistances 2, 4 in a bridge circuit, a rotating contact 5 causing the bridge output potential to move from positive through zero at balance to negative as shown by E1, Fig. 2; this potential is applied to microphone 8, which is affected by vibrations from an armature 10, to produce modulated oscillations E2, Fig. 2, which are amplified at F, amplitude limited at 46, 47, rectified at diode 44, to produce potential E3, Fig. 2, which is applied to render valve 50 conducting at the negative peaks Z1 ... Z5; the current through valve 50 passes through recording pen 69 co-operating- with a drum 62 rotating synchronously with contact 5, until condenser 85 is discharged; condenser 85 is recharged over contact 82 actuated by cam disc 74 as the contact 5 passes from T to S. In a modification, the rectifier is constituted by a triode 144, Fig. 3, whose anode is fed with A.C. from the source 112, and whose grid is fed with the amplitude limited modulated oscillations E2, Fig. 2, so that the output E3, Fig. 4, falls to zero at Z1 ... Z5 and ceases for the remainder of the cycle of rotation of contact 105 owing to the change of phase occurring in the modulated oscillation at Z1, Fig. 2; the thyratron 150 is adjusted to fire when the rectified voltage falls to zero to discharge condenser 185 through the recording pen circuit. In a further modification, Fig. 5 (not shown), the detector is constituted by two triodes, whose anodes are fed in opposite phase with the unmodulated carrier, and whose grids are fed in equal phase by the modulated carrier; at the moment of phase change of the modulated carrier, one triode ceases to conduct and the other conducts, this change-over being utilized to render a further valve conducting to discharge a condenser through the recording pen circuit. In a final modification, Fig. 7 (not shown), the detector is constituted by two triodes whose grids are fed in phase opposition by the unmodulated carrier and in phase equality by the modulated carrier.
Patent GB-1069796-A (GB)
Title: Screwshaft-adjusted variable resistor
Inventor: ROLWES JOHN EDWARD
IPC: H01C10/40
Filed: 1965-03-26
Abstract: 1,069,796. Potentiometers. BOURNS Inc. March 26, 1965, No. 12999/65. Heading HIS. A sealed potentiometer or variable resistor comprises a metal resistance film 28f on a ceramic member, the film and a conductor bar being wiped by contacts 60 carried by a polymer or ceramic block 60b which moves on rotation of a threaded shaft 26 held in a bore in ceramic cover member 20 by a holding and sealing member 50. - The member 50 is a split resilient polymer sleeve which is compressed to fit between shoulders on shaft 26 and in the bore and is secured in place by epoxy resin or other adhesive. The resistor and contact bar may be held in troughs in ceramic base member 22 by potting compound or fused frit. The shaft 26 may be pressed into place before or after cover 24 and base 22 are sealed together. The " thread " on the wiper block 60b may be provided by resilient projections or by a spring (Fig. 11, not shown).
Patent GB-943427-A (GB)
Title: Method of securing an electrical conductor in a slot
Inventor: GOODWIN HENRY JOSEPH
IPC: H02K3/32
Filed: 1961-04-12
Abstract: 943,427. Moulding sleeving. INSULATING COMPONENTS & MATERIALS Ltd. June 20, 1962 [April 12, 1961], No. 13111/61. Heading B5A. An electrical conductor is secured in a slot in a conducting core and insulated therefrom, by moulding, optionally with heat and pressure, a fibrous sleeve impregnated with hardenable synthetic resin in a mould having the internal dimensions of the slot, and inserting the conductor, in the insulator so formed, into the slot. The insulator may be moulded around the conductor itself or around a mandrel 4, which may be polished or plated steel or polytetrafluoroethylene. The resin may be polyester, epoxy or phenolic and inert fillers may be added. Insulators with space for a plurality of conductors (Fig. 2, not shown) are made by wrapping a series of mandrels individually, then wrapping them in a single sleeve before impregnation. The insulator may comprise an integrally moulded wedge.
Patent GB-1389283-A (GB)
Title: Book covers and method and apparatus for producing them
IPC: B42C7/00
Filed: 1972-03-21
Abstract: 1389283 Bookbinding; covers; scoring RESEARCH ASSOCIATION FOR THE PAPER & BOARD PRINTING & PACKAGING INDUSTRIES 21 June 1973 [21 March 1972] 13117/72 Headings B6A B6E and B6J To improve the flexibility of a hinged joint formed in a plastics book or file cover by cutting an elongate notch therein, the floor of the notch is stretched by pressing the plastics defining the floor outwardly from the notch to raise a ridge on the other side of the cover. The cover may be of polypropylene, the notch being terminated short of the edges of the cover to prevent tearing. A release agent may be applied in strips adjacent the hinges to prevent the spine of a filler adhering to the backboards of the cover when it is applied to the spine of the cover. An apparatus for producing the hinge comprises a traversable block 11 mounting a cutter 12 for cutting a "V"-shaped notch and a former 13 for pressing the floor of the notch into a groove 16 in a base-plate 17. The former 13 may be cooled or may be a roller having a cylindrical ridge.
Patent GB-131616-A (GB)
IPC: D06C15/00
Abstract: 131,616. Teleszky, M. Dec. 5, 1917. Calendering.-Guards and doctors for calendering and like papermaking machines are formed of angle-iron 11 with cutting-edges 20, and are carried at each end in recesses 18 in adjustable two - part brackets 12, 13 secured on standards 9.