baber/WOPTO huggingface dataset:
Patent GB-425503-A (GB)
Title: Improvements in frames of cycles
IPC: B62K19/02
Filed: 1934-01-29
Abstract: 425,503. Cycle frames. BURNETT, J. W., 5, Melbury Grove, King's Heath, Birmingham. Jan. 29, 1934, No. 2929. [Class 136 (iii)] A cycle frame is formed of a number of separate frame members of a substantially channel or rectangular box section, having one or more pairs of laterally-spaced end extensions or fork parts adapted to embrace or to be embraced by one or more other parts of the frame and to be secured thereto, as by bolts or rivets, and/or by welding. The lower forked ends of the front down member and seat member may be spaced apart by the bottom-bracket barrel. A tubular steering-head 1, Fig. 2, has lugs or brackets 2, 3 for the attachment of the top member 4 and front down member 16, which consist of broad rectangular channel-section steel bars with inturned edges 5, 17 respectively or with inwardly beaded edges. The front ends of the bars 4, 16 are reinforced by spot - welded liners 6, 18 respectively, and are secured to the lugs 2, 3 by spaced bolts 7, 8, 19, 20 or by rivets passed through the sides of the bars and liners and through bosses on the lugs, the side flanges of the bars being extended to form spaced ears 11, 23 to fit against the head. The rear end of the top member 4 is similarly reinforced by a liner 15, Fig. 17, and provided with spaced ears 14 to engage the side flanges of the seat member 12 and back stay 13. The bottom member 16 is of tapered form, both in its width and in the depth of the side flanges, and its lower end is reinforced by a channel-section liner 24, Fig. 12 and is formed with spaced rings 25, which, as shown in Fig. 14, are clamped on the bearing members of the bottom-bracket barrel 29, together with similar rings on the seat member 12 and chain stay 28. The chain stay 28 is formed as an integral member by pressing, stamping, or casting, and comprises tapered side arms of channel form and a flat horizontal platform 41, which is adapted to extend above the bottom bracket and is provided with a liner 42 and side flanges forming the rings 27 clamped to the bottom bracket. The inner side flanges 40 of the chain-stay branches are shallower than the outer flanges, and taper as shown. The rear ends of the chain-stay branches are flattened, fitted with a liner, and slotted to form fork ends. The branches of the back stay 13 have similarly-tapered inner and outer side flanges, and are united by a bridge 46, the upper ends of the flanges being apertured to receive a junction bolt 37. Bentup lugs 50, 51 on the back stay and chain stay respectively serve for the attachment of a mudguard. A channel or box sectioned seat pillar 53, which may be straight, as shown, or L-shaped, is slotted at 54 so that it can be adjusted by means of the bolt 37 and a distance sleeve 55. Inflator clips 38 may be pressed out of the seat member 12 &c. In a modification, the upper part of the seat member 12 may be fashioned to a split circular section to receive a standard seat pillar and a clip therefor adapted also to secure the top member and back stay.
Patent GB-1523976-A (GB)
Title: Flat radar antenna
IPC: H01Q21/00
Filed: 1976-01-26
Abstract: 1523976 Slotted wave-guide antenna ELECTRONIQUE MARCEL DASSAULT 26 Jan 1976 [31 Jan 1975] 02938/76 Heading H4A An antenna (for a monopulse radar) comprises a symmetrical planar array of slotted waveguides, the waveguides of each quadrant of the array being divided into groups which have respective RF feeds whereby the bandwidth of the antenna as a whole is equal to that of one group, the signals fed to all waveguides of any one group being of equal amplitude and phase. The RF feed network may include magic Ts.
Patent GB-1530003-A (GB)
Title: Support rails for furnaces
IPC: F27B9/22
Filed: 1976-01-26
Abstract: 1530003 Wear strips for furnace charge supports KOPPERS - WISTRA - OFENBAU GmbH 26 Jan 1976 [7 Feb 1975] 02963/76 Heading F4B A skid or wear strip for charge carrying rail in a pusher or walking beam furnace comprises an upper part with a flat top surface with a width of 60-100 mm., and an integral lower part having a bottom surface at least 25 mm. narrower engaging the cooled rail, the skid having a total height of approximately 50 mm., the top part extending for substantially half the height. The wear strip 2 of heat resistant metal may be of T-section, Fig. 1, or may have a tapered lower part, Fig. 4. Lugs 4, 5 welded to the sides and top of the rail serve to locate the wear strip, Figs. 4 and 5.
Patent GB-302827-A (GB)
Title: Improvements relating to jib controlling and locking devices for mining machines
IPC: E21C35/02
Filed: 1928-01-31
Abstract: 302,827. Anderson, A., and Anderson, Boyes, & Co., Ltd. Jan. 31, 1928. Coal-cutting machines.-In a coal-cutting machine with a swingable jib, a rigid connecting member 4, curved to conform with the curvature of the gear head 1, is slidably connected to the jib-bracket 5, as by a dove-tail connection, and has at each end one or more perforations 9; the jib bracket and a bracket 2 on the gear head each have one or more perforations, and pins 6, 8, may be inserted in these perforations and in the perforations of the member 4 to lock the jib. The member 4 also has a stud 12 to which the haulage rope or chain may be applied, whereby, on removal of the pin 6, the jib may be adjusted.
Patent GB-766507-A (GB)
Title: Road speed warning device for automobile vehicles
IPC: G01P1/10
Filed: 1955-02-02
Abstract: 766,507. Speed indicators. GLENN, A. Feb. 21, 1955 [Feb. 2,-1955], No. 3028/55. Class 106 (3). A pair of dashboard lights, W2, R2, and preferably a pair of roof lights, W1, R1, are illuminated in accordance with the speed of a motor vehicle on which they are fitted by means of a centrifugal switch of the rotating weight kind whose movable collar G has a fibre roller L attached to one end of an arm M bearing contacts K, L, whose other end is hinged so that the arm can move from a position where contact L engages a fixed contact J to a position where contact K engages a second fixed contact H to light the white lamps W1, W2 and then the red lamps R1, R2 respectively. The contacts H, J are borne on flat springs so that in the intermediate position both white and red lamps operate, the device being designed to changeover at or about the statutory speed-limit. A collar E inside the spring F limits the movement of the governor to the working range required.
Patent GB-823154-A (GB)
Title: Improvements in or relating to methods of and apparatus for grinding, lapping or polishing
IPC: B24B37/10
Filed: 1956-01-31
Abstract: 823,154. Lapping. SYNTRON CO. Jan. 31, 1956 [Feb. 1, 1955], No. 3127/56. Class 60. One or more articles such as rings 23, Fig. 1, are lapped by a lapping surface which is provided with a reciprocating motion in a path inclined to the surface so that a feeding action results between the surface and the article and there is a progressive relative movement between the surface and the article. While the feed movement may be linear, the apparatus shown in Fig. 1 gives the articles a circular or arcuate motion, for which purpose they are supported in a bowl 20 on a frame 8 which is carried by four inclined springs 6 from a massive base structure 1 enclosing an electromagnetic motor having its armature 16 secured to the underside of the frame 8. The motor is fed with alternating current, if desired through a half-wave rectifier, and, by reason of the disposition of the springs 6, results in the alternate downward and upward movement of the bowl in a helical path ; unless the rings are themselves heavy, they are pressed downwardly by a pressure plate 25 and the vibratory movement of the bowl therefore results in rotation of the rings about their own axes as they move in a circular path over the surface of the bowl. The bowl is faced with abrasive cloth or paper 22 or felt &c., and contains a lapping liquid or powder. When only the lower surfaces of the rings are being lapped, the lower face of the plate 25 is faced with cork, but for lapping the upper faces of the rings the cork facing may be replaced by abrasive cloth &c. and a bar 30 may be used to lock the plate to the bowl. In one modification, the rings 23 are urged against the cast-iron lapping surface of the bowl by superimposing weights on the pressure plate, and in another a fluid pressure device acts directly or through a spring on a plate which is supported by annularly-arranged bearings on the pressure plate so as to permit relative rotation of the latter. In the arrangement shown in Fig. 3, the bottom surface of the bowl is shaped to grind the lower surface of a ring 33 to part-spherical form and magnets 36, 37 provided centrally in the pressure plate 34 and bottom of the bowl serve both to centralise the plate and increase its pressure. When lapping optical flats &c., two depending fingers 61, 62, Fig. 6, from a bridge 60 disposed across the bowl are each arranged to engage a pressure plate 63 and, by the resulting friction, to give the plate an added twist as it revolves around the bowl ; in a modification of this arrangement, a hook-shaped finger depends from the bridge for coaction with a series of upstanding pins on a pressure plate for achieving the same object. The motor for vibrating the lapping surface may, alternatively, be of hydraulic or electric type and of rotary action ; the motion may be transmitted from the motor through guiding links or a rubber support.
Patent GB-928665-A (GB)
Title: Improvements relating to clocks
Inventor: SHANOK VICTOR
IPC: G04B37/14
Filed: 1961-01-27
Abstract: 928,665. Clocks. GLASS LABORATORIES Inc. March 22, 1962 [Jan. 27, 1961], No. 3177/61. Class-139. A clock 10 is mounted on a support member 11 having magnetic means 18 secured to the base thereof, whereby the clock may be mounted so as to adhere magnetically for support on a surface of magnetic material such as that of a metal filing cabinet, metal dashboard of a vehicle or the like. Two permanent magnets 18 are housed in a channel member 21 constituting a magnetic shield screening the clock from the field, these parts being riveted to the support 11 which is of somewhat resilient; plastic material and carries the clock tiltably in trunnions 14.
Patent GB-113343-A (GB)
Title: Improvements in Tool-holders and in Tools for use therewith.
Inventor: GREEN ALFRED RAYNE
IPC: B25G1/00
Filed: 1917-03-05
Abstract: 113,343. Green, A. R. March 5, 1917. Chisels; centre punches.-A holder or handle fur a chisel, centre-punch, caulking tool or the like comprises a tubular body A with a tapered aperture a<1> in its front end to receive the tool B, a rod or spindle D extending rearwardly from the body and a spring E pressing the rod against the tool. The tool may bo tapered or tapered wedges F with pins f may be provided to hold the tool. The device mav be used in connexion with. tools for pneumatic hammers.
Patent GB-975952-A (GB)
Title: A memory unit using negative resistance element
IPC: H03K17/58
Filed: 1961-01-27
Abstract: 975,952. Semi-conductor bi-stable circuits. KOGYOGIJUTSUIN-CHO. Jan. 27, 1961 [Jan. 28, 1960; March 7, 1960; Sept. 10, 1960], No. 3204/61. Heading H3T. A negative resistance diode memory circuit is readout by switching a diode into its negative resistance region and detecting the oscillations produced. In a first embodiment, Fig. 4, if tunnel diode 4 is in its high voltage state, the application of a short duration negative read pulse will switch it into its negative resistance region and the circuit will oscillate at a frequency determined by inductor 3 and capacitor 17, the oscillation being fed by way of waveguide 18 to a detector 19. If the diode is in its low voltage state no oscillation occurs. Alternatively, positive read pulses may be applied to produce oscillation in the low voltage state. The read pulses may be applied through an AND circuit comprising resistors 20, 21. In a modification, Fig. 11 (not shown), the tuned circuit comprises the self capacitance of the inductor. In a second embodiment, Fig. 8, the tunnel diode 4 is biased to have one non- oscillatory state, and one oscillatory state. Readout is effected by applying pulses to terminals 32, 33 to switch tunnel diode 4<SP>1</SP> to its low resistance state, thus coupling the oscillations into the waveguide. In a third embodiment, Fig. 14, tunnel diode 4 has two stable states in one of which the potential across it, together with a read pulse at terminals 32, 33 is sufficient to switch tunnel diode 4<SP>1</SP> into its negative resistance region, and produce oscillations. The circuits may be employed in matrix memory units.
Patent GB-165110-A (GB)
Title: Improvements in strap-hanging devices for tramway cars and like vehicles
IPC: B61D49/00
Filed: 1918-02-23
Abstract: 165,110. Nicholson, W. T. Feb. 23, 1918. Hand-grips.-A hanging- strap for tramway and like vehicles comprises a non- flexible looped handle b, of light metal such as aluminium or an alloy or other suitable material whereby the user's hand is not crushed when pressure is put upon the strap, and a flexible portion a of leather, or webbing attached centrally to a reduced portion f of the handle b or between flanges g on the handle and passing around the roof bar i, is fitted into a groove k in an arm j of the handle and secured by rivets or bolts passed through holes n. The handle, instead of being in the form of a loop, may consist of a straight or shaped bar having a reduced portion or flanges for engaging the strap.
Patent GB-824203-A (GB)
Title: Improvements in the manufacture of rubber
Inventor: HASTINGS JACK DOUGLAS
IPC: C08C1/00
Filed: 1957-01-30
Abstract: Unvulcanized rubber powder is obtained by disintegrating coagulum and then grinding in the presence of a mineral or organic lubricating powder.  Thereafter the rubber is sieved and blended with an inert anti-agglomerant, e.g. talc.  When the powder is prepared from skim latex the anti-agglomerant may be added before or after coagulation. The powder can be sprayed with hot wax containing, if required, bactericides, e.g. sodium pentachlorphenate, and antioxidants. Specification 741,049, [Group V], is referred to.
Patent GB-874493-A (GB)
Title: Improvements relating to instrument for the extraction of foreign bodies
IPC: A61B17/22
Filed: 1958-01-31
Abstract: 874,493. Removing foreign bodies. PORGES S.A. Jan. 31, 1958 [Jan. 31, 1957; Jan. 3, 1958], No. 3354/58. Class 81 (2). An appliance for withdrawing foreign bodies from ducts comprises a flexible tube 1 enclosing a slidable wire 3, to the end of which is attached a number of springy wires or strips 6a, which tend to open out to form a cage, and are attached, at their further ends, in a somewhat pointed end-piece 4. When the inner wire 3 is pulled back, the wires 6a are drawn into the tube 1 until the tip 4 engages against the end of the tube and, in this form, the appliance is introduced into the duct until the tip is beyond the obstruction. The wire 3 is then pushed forward, so that the cage opens out and, as the appliance is withdrawn, either it pushes the obstruction before it or it can be closed around it. In a modified form the wires 6a take a spiral form when opened out.
Patent GB-177650-A (GB)
Title: An improved indicating device for automobiles and road vehicles
IPC: B60Q1/34
Filed: 1921-01-28
Abstract: 177,650. Scott, D. W., and Crow, T. Jan. 28, 1921. Addition to 153,217. Road-traffic signals on vehicles.-In the signal described in the parent Specification, the opening 9 covered by red glass is now placed in the centre of the back shutters 10, the green glass 11 being eccentric. In the front shutter 12 are two uncovered openings, one 13 being central and coinciding with the red glass and the other 14 coacting with the green glass. The shutters are revolved in opposite directions by a pinion when the control is operated, thus providing a permanent red rear light, the green light being shown to left or right thereof as required. In a modification, one of the shutters is stationary and the other adapted to revolve, in which case either the shutter 10 is provided with two diametrically-opposite green glasses 11 or the shutter 12 is provided with two diametrically-opposite apertures 14. A signal arm 16 is attached to the front shutter 12 to indicate the intended direction of the vehicle during the day. In a further modification, a revoluble shutter is mounted in a housing provided with openings which coact with the openings in the shutter.
Patent GB-1348585-A (GB)
Title: Strain multiplier
IPC: G01L1/22
Filed: 1972-01-25
Abstract: 1348585 Strain gauges VISHAY INTERTECHNOLOGY Inc 25 Jan 1972 [29 April 1971] 3489/72 Heading G1N A resistance strain gauge element 13 Fig.5b is mounted between two rigid end-extenders 11, spaced apart by a distance B-B which is exactly equal to the length of the strain gauge resistor, and fixed by adhesive 21 to the test surface 20 by feet 18, spaced apart by a distance A-A. The spaces 12, 17 between extenders 11 is filled with rubber, which is bonded to extenders 11 and element 13. The assembly, which is flexible and may be fixed to a flat or curved surface, adds a multiplication factor of A-A/B-B to the stress sensed by the strain gauge 13.
Patent GB-545826-A (GB)
Title: Feed amplifiers
IPC: H03F1/36
Filed: 1941-03-14
Abstract: 545,826. Automatic volume control. STANDARD TELEPHONES & CABLES, Ltd. March 14, 1941, No. 3492. Convention date, March 22, 1940. [Class 40 (iv) [Also in Group XL] A negative feedback amplifier in which stability against singing is obtained by the method described in Specification 374,130, [Group XL], is modified so that at a frequency to one side of the operating range the gain in the amplifier equals the loss in the feedback path and zero phase shift is produced. In this way self-sustained oscillations are produced but are so limited in amplitude by controlling the tube gain that the loop gain is stabilized and deleterious effects due to overload or variation in the operating condition are reduced. Fig. 6 shows a feedback amplifier in which inverse automatic gain control is applied by a tube 12 having a circuit 17, 18 tuned to the frequency of oscillation in the input which determines the anode and screen voltages of the amplifying tubes 6, 7, 8. Fig. 10 shows a broadband amplifier in which normal automatic gain control voltages derived from a rectifier 12 are applied to the screen grid of amplifier 6. In-a modification, Fig. 11 (not shown), a buffer stage is interposed between the amplifier and the rectifier and provision is made to reverse the sense of the control voltage so that normal or inverse gain control may be obtained. Fig. 12 shows the amplifier characteristic which indicates that inverse control is required to maintain steady state oscillation at 267 KC and normal control at 233 or 1200 KC. The frequency of the steady state self-sustained oscillation may be below instead of above the operating range for which amplifier characteristics are illustrated in Figs. 3A, 4A, 5A (not shown). In a transmission system a number of feedback amplifiers operating with steady state controlled singing may be used and the sing frequency chosen outside the signal band may be transmitted down the line to hold the amplifiers in step. The transformers of the tandem-connected amplifiers may have the characteristic shown in Fig. 16 the usual pass band being indicated at 52 and the sing frequency pass band at 53. Specification 528,151, [Group XL], U.S.A. Specifications 1,915,440, and 2,196,844 also are referred to.
Patent GB-716283-A (GB)
Title: Steering gear for motor vehicles
IPC: B62D7/22
Filed: 1952-02-11
Abstract: 716,283. Steering vehicles. AUSTIN MOTOR CO., Ltd., RIX, J. R., and CHALLENOR, H. G. Feb. 10, 1953 [Feb. 11, 1952], No. 3501/52. Class 79(5) In a motor vehicle steering gear angular movement of the rocker arm of the gear box to either side of the position corresponding to the straight ahead position of the steerable road wheels is opposed by spring loading, the spring or springs being enclosed in the gear box. In the embodiment shown in Figs. 1 and 2 the invention is applied to a steering gear formed by a steering wheel shaft 10 carrying a track or scroll cam 12 and engaging with the cam is a frusto-conical stud 13 carried bv the free end of the rocker arm 14 secured to a rock shaft 15. The stud 13 has an extension 20 arranged between the ends 18, 19 of a spring 16 which is coiled round a boss 17 of a gear box cover 11X. In the straight-ahead position of the gear the ends 18, 19 of the spring engage an abutment 21 on the gear box cover, and movement from the straight ahead position causes tensioning of the spring by movement of the arm 14 causing the extension 20 to move the appropriate end of the spring. In a modification, Fig. 4, the rocker arm carries a pin 22 extends between adjacent ends of helical springs 23 carried in a tubular housing 24 in the gear box cover, the pin carries a bearing block 25 against which bear end caps 26 sleeved over the inner ends of the springs 23. In a further modification, Fig. 6. the rocker arm 14 carries a plunger 27 guided for radial movement by being slidably housed in a tubular guide 28 secured to the arm, a spring 29 between the plunger and guide urging the former into engagement with a cam 30 formed in a portion of the gear box cover and the cam being shaped to tension the spring as the rocker arm moves from its straight ahead position thus urging the arm back into such position.
Patent GB-432894-A (GB)
Title: Process of preventing the deterioration of milk, cream or any other dairy products
IPC: A23C3/00
Filed: 1934-02-03
Abstract: Milk, cream, cheese, or other dairy products are preserved by enclosure in air-tight substantially full receptacles each provided with a vent designed to vent at about four pounds per sq. in. above atmospheric pressure, the product being kept therein out of contact with air and in contact with the gas, principally carbon dioxide generated therefrom.
Patent GB-361202-A (GB)
Title: Improvements in or relating to internal combustion engines of the compression ignition type
IPC: F02B19/04
Filed: 1931-02-05
Abstract: 361,202. Oil engines. RUSSELL, F. C., Grosvenor Road, Altrincham, Cheshire, and BRADBURY, J. H., Allanville, Doveston Road, Ashton-on-Mersey. Feb. 5, 1931, No. 3634. [Class 7 (iii).] In an engine of the type having a projection f on the piston which enters a narrow passage h between an off-set combustion chamber d and the cylinder, one or more grooves h<1>, f are formed in either the walls of the passage h or the projection f, or in both, Fig. 4, the grcoves being laterally displaced from the plane containing the cylinder axis to produce a rapid whirling of the air charge adjacent the side walls of the combustion chamber; the latter are of inwardly convex form to reduce the volume' of the' slow-moving central core of the air charge. Fuel is supplied by an injector e which is located between the zones of whirl produced by the constricted passages, h<1>, f<1>, or to one side of the air stream if one passage only is used.