baber/WOPTO huggingface dataset:
Patent GB-1247393-A (GB)
Title: Improvements in or relating to cameras
IPC: G03B17/02
Filed: 1969-06-05
Abstract: 1,247,393. Lens mounts. BALDA WERKE PHOTOGRAPHISCHE GERATE UND KUNSTSTOFF R. GRœTER K. G. June 5, 1969 [Aug. 8, 1968], No.28594/69. Headings G2A and G2J. A lens mount 1 supports a camera lens 6 with one surface pressed against an abutment 5a by a ring 7 which is secured by a friction grip or a bead 8 or an adhesive 9, and the arrangement can be mounted to the front wall 16 of a camera by means of a thread 13 of the mount on a corresponding thread 14 in a socket 15 of the camera. A cylindrical surface of the mount has axial ribs 3 and grooves 4 for supporting a focussing ring (17), Figs. 3, 4 and 5 (not shown), the ring having resilient tongues (20), formed by double-recesses (19) in an integral inner collar (18), and lugs (24) arranged so that both tongues and lugs fit the grooves 4 of the mount. The camera has two lugs 29, 30 which abut the socket 15 and which fit inside a cylindrical recess (27) between the inner and outer collars (18, 25) of the focussing ring when in position, the lugs in conjunction with a separate lug (28) on the outer collar serving to restrict the focussing movement of the ring. The ring (17) is fixed to the lens mount in the desired orientation by first setting the lens to infinity focus and then arranging the ring lug (28) to be alongside the camera lug 29; pushing the ring fully home then causes lugs (21) on the end of the resilient tongues (20) to engage firmly against a surface 31 of the mount.
Patent GB-837134-A (GB)
Title: Improvements in or relating to brake mechanism for trailer vehicles
IPC: B60T11/10
Filed: 1957-09-12
Abstract: 837,134. Trailer vehicle braking systems. HENRY, H. P. Sept. 5, 1958 [Sept. 12, 1957], No. 28804/57. Class 103(1). , In a trailer vehicle braking system of the kind in which the brakes of the trailer are normally applied automatically as the result of the trailer vehicle tending to overrun the towing vehicle when the speed of the latter is reduced, the relative movement of the vehicles displacing a piston in a master cylinder to create liquid pressure which acts in wheel cylinders to apply the trailer brakes, the master cylinder piston, as well as being operable to apply the trailer brakes by relative movement of the trailer vehicle and a towing vehicle, is operable manually through resilient means, and is also operable automatically by a member which comes into engagement with the ground if the trailer vehicle breaks away from the towing vehicle. In the embodiment shown, if the rod 13, connecting the towing vehicle 11 and trailer vehicle 10 through ball hitch 12, is moved into a housing 14 containing a liquid pressure damper cylinder 16 and a brake master cylinder 17, by relative approach of the vehicles, the brakes are applied by movement of the master cylinder piston 22 which is displaced by a collar 25. To apply the brake manually, such as for parking, the lever arm 38 is moved in a clockwise direction from the position shown, the simultaneous angular movement of the arm 39 causing a stud 35 mounted on arm 34 to ride up the cam edge 43 of arm 39 and rocking the arm 34 to apply a torsional load to a torsion bar 29 to cause the sprag arm which bears on a head 24 and exerts a thrust on the master cylinder piston 22 to apply the brakes. If the trailer vehicle 10 breaks away from the towing vehicle 11, and assuming the trailer vehicle is nose-heavy, the lower end of a sprag arm 31 strikes the ground and is dragged backwardly, thus moving the master cylinder piston 22 to apply the brakes.
Patent GB-340283-A (GB)
Title: Improvements in printing mechanism for meters and other measuring or counting instruments
Filed: 1929-09-23
Abstract: 340,283. Counting-apparatus. WALL, G., Rhosneir, Stretford Road, Urmston, Lancashire, ASH, F. S., 20, Malvern Avenue, Flixton, Manchester, and ASSOCIATED ELECTRICAL INDUSTRIES, Ltd., Bush House, Aldwych, London. Sept. 23, 1929, No. 28814. [Classes 106 (i) and 106 (iv).] Counters with recording apparatus ; transfermechanism ; zeroizing-mechanism.-A meter, such as an electrical energy meter, drives a cyclometer train of type-wheels, and at intervals an imprint is taken from the wheels on to a strip 16, Fig. 1, thereupon the strip is advanced one step and the cyclometer train zeroized. The meter (not shown) drives through a frictionclutch 2 a shaft 58, on which is secured the first type-wheel 84, the drive to the other wheels 83, rotatably mounted on the shaft 58, being effected through transfer-pinions. At halfhourly intervals a clock-switch 6 causes energization of a brake-release magnet 73 and of a small motor 7, which through shafts 50,40 and crank 41 causes a complete reciprocation of a frame 9 carrying an inking-roller 15 over the type wheels, and thereafter, with a rolling motion, the strip 16. During this motion, the strip passes downwards between rollers 17, 18. During the return half of the reciprocation, a ratchet and pawl 30, 35 causes the strip to be wound up one step in readiness for the next record. Towards the end of the reciprocation, brushes 68 are bridged, causing a resetting magnet 77 for the meter to be energized. This magnet completes at contacts 97 a maintaining circuit for itself and for a magnet 66 which forces the shaft 50 downwards when a notch in a disc 60 carried by the shaft 40 comes opposite a projection 61. Thereafter the motor drives the cyclometer shaft 58 backwards through a frictionclutch 55. Zeroizing is accomplished by providing each type-wheel 83 with a pawl 89, Fig. 4, which in forward operation rides over a pin 90 carried by the next adjacent wheel, but during reverse operation engages the pin and thus carries the whole cyclometer train to zero in a few revolutions of the shaft 58. During this operation, the transferpinions 91 are forced out of mesh against the action of a spring 95. At the end of a short interval of time, e.g. fourteen seconds, the clock-switch 6 opens its contacts and the apparatus returns to normal. As fourteen seconds of record are thus lost each half-hour, the gear between the meter and the shaft 58 can be chosen so as to compensate for this loss on the assumption that the same rate of recording is maintained.
Patent GB-985303-A (GB)
Title: Line output stage
Inventor: JONES JAMES DOUGLAS
IPC: H03K4/62
Filed: 1960-08-19
Abstract: 985,303. Converting. PYE Ltd. Aug. 15, 1961 [Aug. 19, 1960], No. 28818/60. Heading H2F. [Also in Division H3] In a line scan output circuit including an output transistor T coupled to a scanning coil circuit an efficiency diode D1 is connected in series with a compensating secondary winding S1 on an E.H.T. transformer TR, the secondary winding being adjustable in position on a limb of the transformer core so as to produce a voltage which when added to the voltage across the diode D1 equals the voltage across the transistor when fully conducting. The E.H.T.transformer TR comprises, Fig. 2 (not shown), a rectangular ferrite core upon one limb of which are wound the primary P and E.H.T. secondary winding S2 and on an adjacent limb, the compensating winding S1 consisting of a single turn whose position can be adjusted. Heater windings S3 and winding S4 for feeding clamp pulses to a flywheel synchronizing circuit are wound on a third limb of the core. A voltage of 60 volts may be taken to the video stage through diode D2. In the embodiment of Fig. 4 (not shown) a capacitor is connected between the linearity coil L1 of Fig. 1 and the negative supply line to give correction for " S " distortion and the anode of diode D1 is connected to a tapping on the primary of the E.H.T. transformer so as to enable a higher voltage to be derived for feeding the video stage.
Patent GB-1047876-A (GB)
Title: An end to end connection for bars, particularly mine roof support bars
IPC: F16B21/18
Filed: 1964-07-13
Abstract: 1,047,876. Mine roof support bars. L. VANWERSCH, A. VANWERSCH and P. VANWERSCH. July 13, 1964 [March 25, 1964], No. 28831/64. Addition to 909,274. Heading EIE. In an end to end connection for mine roof support bars 10 as claimed in Claim 1 of the parent Specification the wedge pin 4 and/or pivot pin 3 is provided with a braking device consisting of a circlip 6 mounted resiliently in returning means on the bar end adjacent the wall of the pin aperture to make longitudinal displacement of the pin difficult The circlip may be in the form of a yoke as shown with radial projections 6a engaged in grooves 3a in the pin or in the form of an encircling clip with radial flanges adapted to be clamped together by a screw, wedge or eccentric, see Fig. 7 (not shown). Again the circlip may take the form of a tilting ring or be of figure 8 configuration. For various other modifications contemplated the Specification should be referred to.
Patent GB-207349-A (GB)
Title: Improvements in injectors
IPC: F04F5/46
Filed: 1922-10-24
Abstract: 207,349. Smith, H. H. Oct. 24, 1922. Giffard injectors. - The inner end of a central steam nozzle A is made co-terminal with the inner end of an annular steam nozzle B, and the cross-sectional area of the central nozzle, at its inner end, is approximately one half that of the throat of the diffuser C. A separate steam supply is provided for each nozzle. At starting, steam is admitted solely to the nozzle A, from which it issues as a fine stream, being subsequently admitted to the annular nozzle.
Patent GB-191212-A (GB)
Title: Improvements in electric burglar alarm apparatus
IPC: G08B13/22
Filed: 1921-10-31
Abstract: 191,212. Weeke, H., and Huther, A. Oct. 31, 1921. Bell-operating mechanism, electric.-In an electric burglar alarm system, the circuit connections of which are shown in Fig. 4, the operating magnet 3 of an electric bell is provided with an auxiliary armature 8. When set, the magnet 3 is excited in series with a resistance 6 across the leads 7, 17 sufficiently to hold up the armature 8 but not sufficiently to operate the main armature 4. In the event of interference with the leads 7, 17, either by cutting or by short-circuiting, the circuit of the magnet 3 is broken, in the latter case at the interrupter spring 37, and the armature 8 drops back to close contacts 14, which short-circuit the leads 7, 17 and the bell sounds continuously. The switch 14 comprises a spring 32, Fig. 2, pressed into contact with a screw 33 by a finger 15 when the armature 8 drops back. The armature 8 is set by hand or by mechanical means, and engages with shoes 10, 11 attached to the pole pieces 30, adjustment screws 13, 31 being provided.
Patent GB-1316775-A (GB)
Title: Machines having reciprocating pistons
IPC: F02B3/06
Filed: 1970-06-15
Abstract: 1316775 Fuel injection two-stroke engines; cylinders; driving gear; valves W E SALZMANN 15 June 1970 [13 June 1969 and 18 July 1969] 28897/70 Heading F1B [Also in Division F2] In a piston machine, particularly an internal combustion engine, the piston is integral with or rigidly connected to the connecting rod and the cylinder wall 132, 133, Fig.3, is inwardly curved to conform to the envelope surface formed by the periphery of the piston during its operational movement. The piston may be square, circular, rectangular or elliptical. In the four-stroke engine shown in Fig. 3, the cylinder block 143 may have a cast cooling water space 142 or a wet liner 144. The piston crown 146 is a sheet metal pressing rigidly connected to a tubular connecting rod 147 having a big end bearing half 148 welded to or cast therewith. Valve pockets 149, 150 interconnected by a channel 151 are formed in the crown 146 opposite the inlet and outlet valves 139 and 140 respectively and the rocking movement of the piston in use acts to mix the gases in the combustion chamber. In the two stroke engine shown in Fig.7, the piston seal 166 controls the exhaust port 168 and activates a slide valve 170 therefore loaded by a return spring 171. The horizontal engine shown in Figs.8 and 9 comprises a square piston 175 and two inwardly plane sides 177, 178 connected by bolts 193 to a central housing 176 comprising a cylinder head, inwardly curved cylinder walls 181, and a crank-case 182. The piston is integral with a double-web connecting rod 184 and has two skirt portions 185 controlling exhaust ports 186. The connecting rods may be of synthetic plastics.
Patent GB-451845-A (GB)
Title: Improvements relating to wireless control systems for aeroplanes and like aircraft
IPC: G05D1/00
Filed: 1924-08-15
Abstract: 451,845. Distant - control systems. JACKSON, P. R., 15, Victoria Street, Westminster.-(Sperry Gyroscope Co. ; Manhattan Bridge Plaza, Brooklyn, New York, U.S.A.) Aug. 15, 1924, No. 28931 /25. Divided out of 451,842. [Class 40 (i)] The length of a pulse determines which of two units is selected for operation, the pulse being transmitted by wireless. As shown in the Figure, when a pulse is received by the wireless equipment, relay 46 energizes. Contacts 48 are first opened and then armature 47 presses down bellows 51 to close contacts 55. If the pulse now terminates, armature 47 recloses contact 48 before contacts 55 separate and relay 57 is energized to release bomb 70. If, however, the pulse continues, contacts 49 are closed and relay 34<1> is energized to operate bellows 20. Specifications 133,314, [Class 9 (ii)], 220,726, [Class 97 (iii)], 227,489, [Class 40 (i)], 451,841, and 451,842 are referred to.
Patent GB-406234-A (GB)
Title: Improvements in and relating to methods of grid control in vapour or gas discharge valves
IPC: H02M1/04
Filed: 1933-10-19
Abstract: 406,234. Converting. BRITISH THOMSON-HOUSTON CO., Ltd., Crown House, Aldwych, London.-(Assignees of Allgemeine Elektricitats-Ges. ; 2, Friedrich Karl- Ufer, Berlin.) Oct. 19, 1933, No. 28974. Convention date, Oct. 19, 1932. [Class 38 (ii).] Relates to grid control systems for arc discharge devices of the kind in which an A.C. voltage b of the same frequency as the anode voltage is superimposed on a bias voltage, and consists in employing as the bias voltage an A.C. voltage e of a frequency high as compared with the anode voltage and of such magnitude that the combined voltages exceed the critical ignition valve k whilst neither alone exceeds that value.
Patent GB-263989-A (GB)
Title: Improvements in or relating to card and paper cutting type
IPC: B41M1/24
Filed: 1925-11-20
Abstract: 263,989. Brecknell, W. H. Nov. 20, 1925. Embossing-surfaces; types.- Cutter-crush types for embossing and cutting card or paper are provided on the back with an attached member having one or more ribs which lie within the area of the back and are adapted to engage a clamping device. The member may consist of a metal or other plate 2, Fig. 1, formed with one or more ribs 3 and secured to the back of the type 1, preferably by soldering; or as shown in Fig. 3 the member may consist of a sheet 5 of metal, card, celluloid or the like which is bent to form one or more ribs 3 and is secured to the back of the type by adhesive or by means of flanges 6 which detachably clip the sides of the type. The ribs may be of rectangular, dovetail, or curved section and may be arranged obliquely or parallel to the bottom or side edges of the types. Preferably each type bears one character and to ensure alignment the ribs are arranged at a uniform distance from the bottom edges of the types.
Patent GB-835010-A (GB)
Title: Improvements in and relating to resilient mounting of springs
Inventor: HUGHES JOHN OLIVER PHILIP
IPC: B60G5/053
Filed: 1955-10-14
Abstract: 835,010. Laminated springs; springs for railway vehicles. ENGLISH ELECTRIC CO. Ltd. Oct. 9, 1956 [Oct. 14, 1955], No. 29323/55. Classes 103(6) and 108(3) A resilient mounting of a leaf spring 15 on its support 7 comprises a sandwich of rubber-bonded arcuate metal plates 17 arranged convexly towards the support 7, the end of the spring 15 rotating about a geometrical point 1 near its end which remains substantially stationary when the spring flexes under load: As shown, the lowermost rubber element of the sandwich is bonded to an arcuate surface of a block 12 which is held by means of a bolt 115 and nut 116 to the plates of the spring 15. Adjustment may be effected by the selection of a washer 14 of suitable thickness. The uppermost plate 17 is integral with a block 117 having a rectangularshaped plane upper surface 117a and front and rear surfaces 117b. The surface 117a bears on the base of a recess 7a formed in vehicle frame 7. The recess 7a is of greater length than the length of the surface 117a. This permits rectilinear movement of the block 117 as load is applied in the assembly of the mounting. This movement is terminated by the' right hand end surface 117b coming into engagement with the right hand end of the recess 7a. The block 117 is then retained in this position relative to the frame 7 by means of a plate 107 which is secured by bolts 118 to the horn stay 119 and which has a shoulder 107b which engages the left hand end surface 117b. The plate 107 is cut away at 107a to clear the uppermost arcuate plate 17. The horn stay 119 is similarly cut away at 119c for the same purpose. The block 117 may be lightly fixed to the support 7 in a detachable manner. In a modification (Fig. 1, not shown), the uppermost arcuate plate 17 merely rests in a correspondingly shaped arcuate recess in the frame member 7. Instead of securing the block 12 to the leaf spring by means of the bolt 115, a recess in the block 12 engages a humped portion of the uppermost spring plate 15a of the spring 15.
Patent GB-359170-A (GB)
Title: Improvements in or relating to mining machines
IPC: E21C31/00
Filed: 1930-09-30
Abstract: 359,170. Coal-cutting machines. BRITISH JEFFREY-DIAMOND, Ltd., Stennard Works, Wakefield, Yorkshire.- (Jeffery Manufacturing Co. ; Columbus, Ohio, U.S.A.) Sept. 30, 1930, No. 29324. [Class 68 (i).] In a coal-cutting machine with a horizontally swingable cutter jib and means for elevating said jib, the elevating means comprises double-acting or compound screws which are associated with longitudinally extensible pedestals to take up lateral thrusts. A ring 9 carries a rotatable table provided with a radial cutter-chain jib and is supported by three equally spaced compound screw mechanisms each comprising a rotatable sleeve 20 with external threads engaging a nut 19 and opposite internal threads engaging a screw 26 which is loosely secured to a bracket 36 on the ring 9 by a nut 35 and spring 33; the screw 26 is held against rotation by a non-circular portion 28 and may have threads of greater pitch than those in the nut 19. The sleeves 20 are driven through sleeves 15 and clutches 23 from sprockets 16 connected by a common chain 17, Fig. 2, to a sprocket 108 driven through gearing similar to that described in Specification 206,065, [Class 68 (i), Excavating earth &c.], but having a shear pin in the bevel gearing to prevent overload; the clutches 23 are separately controlled, whereby a. single screw mechanism may be operated to tilt the table. The screw mechanisms are housed within, and braced by, extensible pedestals each comprising a stationary section 50, slidabje sections 44, 39, and a guide member 29 on the screw 26, the sections 39, 44 being lifted in turn by lugs 42, 46 on the parts 29, 39 respectively.
Patent GB-1093301-A (GB)
Title: Improvements in carburetting devices
IPC: F02M7/28
Filed: 1965-07-12
Abstract: 1, 093,301. Spray carburetters. SOCIETE INDUSTRIELLE DE BREVETS ET D'ETUDES S.I.B.E. July 12, 1965 [July 17, 1964], No. 29489/ 65. Heading F1B. Fuel issuing from a jet 5 is aerated in a tube 9 by air supplied through on the one hand, a jet 6 and, on the other hand, ducts 18 and 12, the latter supply being regulated by a needle 16 controlled by a bellows 22 which is subjected to atmospheric pressure by way of a duct 23. To prevent lateral oscillations of the free end of the bellows, a disc 28 of synthetic plastics material is secured thereto and fits closely within a chamber 24.
Patent GB-881939-A (GB)
Title: Improvements in or relating to devices for practising golf-putting
IPC: A63B57/00
Filed: 1960-08-26
Abstract: 881,939. Golf-practice appliances. COLES, L. U. Aug. 26, 1960, No. 29513/60. Class 132(2) A hole-substitute for practising putting comprises an arcuate wall 1 defining a space and spanned by a ridge 5 permitting entry but tending to prevent exit of a putted ball and by an elastic member mounted at a height above the ground equal to the radius of a golf-ball as by fitting in a groove 6 so that the device may be used as described in Specification 880,751. The device may have a bottom 3 having apertures 4 for pegging it down or it may be located solely by its own weight. In a modification, Fig. 2 (not shown), the wall 1 is encircled by a groove near one face to receive an elastic band the run of which spanning the opening forms the ridge and a second groove receiving another elastic band.
Patent GB-210175-A (GB)
Title: Improvements in or relating to drawing appliances
IPC: B43L13/04
Filed: 1922-10-28
Abstract: 210,175. Gray, A. Oct. 28, 1922. Tables.-An appliance to enable an ordinary table or other flat surfaced article of furniture to be used as a drawing-board comprises a straightedge 12 arranged across and clamped at the sides of the table by clamps 17 provided with a projecting arm 18 carrying clamping-screw 19 for engagement with the underside of the table &c. The edges 13, 14 of the straight-edge member are provided with longitudinal grooves 15 to receive the inturned ends of arms 16 of the clamps to provide adjustment for tables of various widths.
Patent GB-1152783-A (GB)
Title: Process for Producing Shaped Glass-Ceramic Articles
IPC: C03B29/00
Filed: 1966-07-01
Abstract: 1,152,783. Glass-ceramic articles. OWENS-ILLINOIS Inc. 1 July, 1966 [1 July, 1965], No. 29558/66. Heading C1M. A process for the production of shaped glassceramic articles, which have an inner surface, e.g. bottom and side-wall and a top edge, comprises pressing a gob 22 of a crystallizable glass composition in a mould 24 to its desired shape 32, removing the shaped article from the mould, annealing the article after its removal from the mould and effecting controlled nucleation and crystallization of the glass, at least the inner surfaces of the hot, shaped article being heat-glazed by means of externally applied heat while the article is still in the mould, the heat glazing being sufficient to initiate uniform softening of the crystallizable glass but insufficient to cause premature crystallization thereof. Preferably the externally applied heat is that of a directly applied flame swept across the inner surfaces of the hot, shaped article for 0À2 to 3 seconds at a flame temperature of 2500‹ to 3300‹ F. A gob 22 of suitable composition is fed from a feeder into a mould at a station 12 of a rotary turret press-moulding machine. At the first index the gob 22 is pressed out (e.g. at 5500 to 11,000 p.s.i.) to form the article. The plunger retracts and the machine indexes one or two stations at each step depending whether the machine has an even or an odd number. Here a plurality of burners 34, mounted for vertical reciprocation or horizontal rotation only about the vertical axis passing through the centre of the mould, heat-glaze the inside walls and top edge of the article to eliminate haze formation in the glass. The article is then indexed to a cooling station and is finally removed to an annealing lehr where nucleation and crystallization is also effected. The heat-glazing step may be effected over several stations if desired. The machine may also operate on double-gob. If desired during the heat glazing a water-cooled ring may be suspended above the mould. A suitable glass composition would fall within the ranges in weight per cent -SiO 2  66-73, Al 2 O 3  15-19, Li 2 O 2À5-4, MgO 3-7À7, ZrO 2  1-1À7, TiO 2  1- <1À9, SnO 2  0-1À7, P 2 O 5  0-3, BaO 0-5, ZnO 0-3 where the total of ZrO 2  + TiO 2  + SnO 2 + P 2 O 5  is at least 2À8 and the total of Li 2 O + MgO is from 6À3 to 10À5. However, the TiO 2  content may fall within the range 1À9-<2À4 weight per cent.