baber/WOPTO huggingface dataset:
Patent GB-1308839-A (GB)
Title: Scanning electron microscope
IPC: H01J37/28
Filed: 1971-04-19
Abstract: 1308839 Electron microscopes NIHON DENSHI KK 19 April 1971 [18 April 1970] 27312/71 Heading H1D In a scanning electron microscope the specimen is located in a strong magnetic field, of which the portion in front of the specimen serves to focus secondary electrons emitted from the specimen. In Fig. 1 the specimen 6 is located within the lens 7, and secondary electrons return back along the axis and are attracted to the detector 8 by its positive potential. The beam is scanned by the coils 5, and the output signal is displayed on a cathode-ray tube 12 scanned synchronously. Transmitted electrons are collected by a detector 9 which provides an alternative display signal. The energization of the lens 7 may be varied in order to vary the size of the area on the specimen which is scanned by the beam (Fig. 2, not shown). In a modification (Fig. 3, not shown), the specimen is located within the centre polepiece of three polepieces energized by the lens coil. Secondary electrons focused the centre and upper polepieces are deflected into the detector by a further magnetic field (Fig. 3) or by an electric field (Fig. 5, not shown). The centre and lower polepieces focus a transmission image for display on a fluorescent screen when the scanning system is disabled and the lenses modified to direct a parallel beam of electrons on the specimen. In a modification, Fig. 6 (not shown), the field between the centre and upper polepieces is produced by a separate permanent magnet or a separate energizing coil. In another arrangement, Fig. 10 (not shown), the deflecting means is attached to the upper pole of the objective lens, and a specimen holder is mounted on balls on the objective lens.
Patent GB-1339409-A (GB)
Title: Electrolytic capacitor with seal
IPC: H01G9/10
Filed: 1972-06-12
Abstract: 1339409 Electrolytic capacitors GENERAL ELECTRIC CO 12 June 1972 [12 July 1971] 27327/72 Heading H1M An electrolytic capacitor casing 14 has a glass or ceramic to metal seal 52, 50, 54 and, to prevent capacitor electrolyte from reaching the latter, a supplementary seal comprising plastics bushing 20 having a cavity 24 therein around anode riser 12, the cavity being filled with insulating adhesive material 60 forming an adhesive bond with anode riser 12, glass or ceramic head 50 and metal tube 52. The adhesive material may be a non curable sealing material or a curable elastomer e.g. a silicone or fluorosilicone rubber.
Patent GB-1081669-A (GB)
Title: Slide assembly
IPC: F16C29/12
Filed: 1966-06-20
Abstract: 1,081,669. Bearings. TRANSISTOR AUTOMATION CORPORATION. June 20, 1966 [May 2, 1966], No. 27406/66. Heading F2A. In a slide assembly, a male slide member 12, Figs. 1 and 2, has longitudinal grooves 18, 20 which receive metal rods 22 therein; and a female slide member 14 has grooves 28, 30, each of which receives two rectilinear-motion bearings 32 with re-circulating balls therein. The bearings comprise a substantially semicircular casing 38, Fig. 3, having depressions 42, 44 which engage the load-carrying balls; and a cage 40 which guides the load-carrying balls and has channels 50, 52 formed therein which are return paths for the balls. The pairs of bearings 32 are spaced by bars 54, Fig. 1, which are secured by screws 56 and the bearings are each provided with an end-plate 58 which prevents rotation of the bearing and with a felt washer 62 which wipes the rod 22. A sideportion 26, Fig. 2, of the female slide member 14 is longitudinally slotted at 66, the slot opening into the groove 30, and a screw 64 is provided adjacent the bearings 32 in the groove 30 so that pre-loading may be effected. A transverse slot 67, Fig. 1, is provided at the inner end of each slot 66 to isolate the pre-loading and to allow greater flexibility.
Patent GB-519372-A (GB)
Title: Improvements in and relating to brakes for motor or other vehicles
IPC: F16D51/60
Filed: 1938-09-20
Abstract: 519,372. Internal-expanding brakes. WILLIAMS, S. B. R. Sept. 20, 1938, No. 27432. [Class 103 (i)] An internal expanding brake comprises a series of shoes expanded by simultaneously operated rotary cams or wedge members. In Fig. 1, a series of shoes 2 are engaged each by a cam 8 pivoted at 11 and having toothed engagement with a ring 4 rotatably mounted on the back plate. The brake is operated by an external lever on one of the cam, spindles. A link 15 extends from near one end of each shoe and the ring 4 and this end 18 is tapered and has tongue-and-groove engagement with the end 19 of the adjacent shoe. The spindle of one of the cams carries an external operating lever. In a modification, the teeth of the cam members are extended to engage teeth on the shoes and the ends of the shoes are guided in a combined radial and peripheral movement by fixed curved blocks. The arrangement of the parts may be such that the drag of the shoes when applied tends either to increase the application or to reduce it.
Patent GB-1055907-A (GB)
Title: Improvements relating to means for attaching electrical conductors to insulators
Inventor: GILLAM GERALD HUGH
IPC: H01B17/22
Filed: 1964-07-03
Abstract: 1,055,907. Clamping overhead conductors. TAYLOR, TUNNICLIFF & CO. Ltd. June 22, 1965 [July 3. 1964], No. 27465/64. Heading H2C. A trunnion-mounted clamp for attaching an overhead electrical conductor to an insulator support, rests in a yoke 2, 3 on a cap 1 on the insulator body. When the clamping pressure is released the U-bolt 7 which joins the cradle body 5 and movable plate 6 drops into a locating slot 17 on the cap, preventing movement of the clamp on its trunnions during assembly. Use of an unsymmetrical clamping plate slotted at one end may permit introduction of the conductor without dismantling and, by allowing alternative concave gripping surfaces to be applied when it is fitted in alternative positions, . increase the range of diameter of conductors which can be accommodated.
Patent GB-713617-A (GB)
Title: Improvements relating to the mechanical moulding of dough pieces in bread making
Inventor: EMBREY HAMLET GODWIN HUTCHIESO
IPC: A21C3/00
Filed: 1952-11-01
Abstract: 713,617. Dough-moulding machines. ALLIED BAKERIES, Ltd. Feb. 13, 1953 [Nov. 1, 1952], No. 27524/52. Class 87 (2) Dough pieces travel on a conveyer 16 beneath a spring (14)-urged board 11 and are cut into two by the upward cut of a rotary knife 20. The cut pieces fall over a bar 29, so that in falling on to a conveyer 21 they are rotated through 180 degrees, their cut edges being outwards. The dough pieces may be grooved near their cut edges by adjustable knives 34 which diverge slightly to form wide grooves (see Fig. 3, not shown). These grooves help to allow the escape, of gas. The knife may be lubricated by felt pads. A guard 28 is provided for the knife.
Patent GB-388468-A (GB)
Title: Improvements in the method of and means for tieing and securing the ends of wires tieing boxes, bales or the like for transportation
IPC: B65B13/34
Filed: 1931-10-06
Abstract: 388,468. Wiring bales. HOLROYD, N., 8, St. Anne's Road, Skircoat, Halifax, Yorkshire. Oct. 6, 1931, No. 27696. [Class 45.] A method of securing the ends of bale ties or binding wires involves the use of a separate closewound wire helix or a plain sheath adapted to receive the ends of the wire, and, on being subjected to pressure, to form interlocking indentations in the wires. The sheath and the wire may be of different degrees of hardness. The overlapping ends B, C may be disposed side by side within the sheath A or may be hooked at D and placed with the ends abutting as shown in Figs. 6 and 8. In the form shown in Fig. 7, the straight ends are abutting, and in all cases the sheath A is pressed to form indentations in the ends. An apparatus for forming the fastening is shown in plan in Fig. 10. Arms N, P are pivoted on a bedplate E and carry housings R with bearings S threaded for engagement with a right and left-hand threaded shaft X rotatable by a hand-wheel Y, to move the arms together and to put tension on the wire, the ends of which are gripped by cams T. A sheath is placed over the ends, and, after the application of tension, a screw-operated plunger G is lowered towards a table L by a hand-wheel K to compress the sheath.
Patent GB-1194247-A (GB)
Title: Improvements in or relating to Centrifuges.
IPC: F16F15/14
Filed: 1967-06-15
Abstract: 1,194,247. Vibration dampers. BRAUN A.G. 15 June, 1967 [15 June, 1966], No. 27749/67. Heading F2S. [Also in Division B1] A centrifuge with an imbalance compensating device comprises a drive motor 2 with a substantially vertically drive shaft member 3 and a centrifuging perforated sieve basket 20 coaxial with and rigidly connected to the drive shaft member 3 for rotation therewith, and the said imbalance compensating device comprises an annular balancing member 22 uniformly distributed about the axis of the shaft member 3, and coil springs 23 connecting member 22 to the shaft 3 for rotation therewith, the springs being centred and preloaded by adjustable screw 25 so as to produce during imbalance during operation of the centrifuge movement of the member 22 compensating said imbalance. The centrifuge also comprises a disc 18 with projections 17 that engage apertures in basket 20 and cavities 16 in plate-shaped member 12, and a friction disc 21.
Patent GB-464207-A (GB)
Title: Improvements in spindle mountings adapted particularly to duplicating machines
IPC: B41L9/08
Filed: 1935-10-08
Abstract: 464,207. Hectograph-copying apparatus. DITTO, Inc. Oct. 8, 1935, No. 27771. Convention date, July 26, 1935. [A Specification was laid open to inspection under Sect. 91 of the Acts, April 14, 1936.] [Class 100 (ii)] A spindle - mounting, particularly for hectograph. copying machines of the type comprising a gelatine band passing over the surface of an arcuate drum A from one spindle 2C inside the drum to another, comprises a framework in. cluding opposed end walls 112, 113 having oppositely-mounted spindle carriers 133, 134, the former being urged by a spring 155 towards the latter which is adapted to drive the spindle, and a cam-surface 185 being provided on the framework whereby, when the spindle is moved laterally with its axis parallel to the axis of the carriers, the cam 185 moves the spindle longitudinally so that the carrier 133 is moved outwardly, further lateral movement of the spindle permitting the carrier 133 to urge the spindle into driving engagement with the carrier 134. Each spindle is in the form of a tube having at its ends caps 50, 50a, each cap having a concave recess 51 provided with a diametrical slot 52a. The carrier 133 consists of a pin having a conical head 150 with a rounded point, and the carrier 134 comprises arotatable pin with a tongue 160 for engaging the slot 52a. Flanges projecting inwardly from the wall 113 form guides for the cap 50a of the spindle. The wall 112 has similar flanges 170, 171 and has also a single inclined surface 181 serving as a guide for both spindles and has also a central guide-lug 179. The Specification as open to inspection under Sect. 91 comprises also the following spindle-mounting : At one end of the spindle, the recess 51 engages a spring-pressed pin 54, Fig. 1 (Cancelled), having a convex end 54e, and the recess at the other end engages a driving- pin 55a, the spindle being slightly shorter than the distance between the end walls of the framework so that on moving the spindle towards the pin 54 after engaging one end with the pin 55a, the other end strikes against the surface of a plate fixed to the framework, causing the spindle to move to the left, and, on continued movement of the spindle, a rounded edge on the end of the spindle engages the surface 54e moving the pin 54 outwardly and entering the spindle between the two pins. This subject-matter does not appear in the Specification as accepted.
Patent GB-868754-A (GB)
Title: Improvements in or relating to electronic aggregators
IPC: H03K29/00
Filed: 1957-09-09
Abstract: 868,754. Digital electric calculating-apparatus. CONDY, J. H., and KITZ, N. Sept. 9, 1957, No. 27779/56. Class 106(1). An electronic counter comprises a plurality of multi-cathode gas-discharge tubes coupled by carry amplifiers to form a counting chain, and is characterized in that each carry amplifier consists of a trigger circuit having a pair of valves, one of which is common to a plurality of carry amplifiers. As described, input pulses pass via a shaper V1 to the units tube of a chain of decade counting tubes. When the output reaches the tenth cathode of the units tube a triode V2a is fired to cut off a triode V4 cathode-coupled thereto thereby stepping on the tens tube by one digit, the triodes V2a, V4 returning to their former states at the conclusion of the carry pulse. Carry between higher denominations is by triodes V2b, V3a &c., each also cathode-coupled to the triode V4. An additional triode (not shown) also cathodecoupled to the triode V4 may be inserted in the input to the units counting tube. Checking arrangement.-Each carry pulse causes the triode V4 to fire and produce a pulse which after shaping at V8 is used to step a counting tube V9. At the end of the counting operation the digit registered by the tube V9 should equal the sum of the digits, reduced modulo 10, in the tubes of the counting chain with the exception of the units tube. By the addition of a further triode cathode-coupled to the triode V4 in the input to the units counting tube the checking tube V9 can be made to take account of the units denomination also. A numeral wheel display device such as that described in Specification 868,753, is provided in association with the counting chain.
Patent GB-265668-A (GB)
Title: Improvements in telephone systems
IPC: H04M3/60
Filed: 1925-11-04
Abstract: 265,668. Standard Telephones & Cables, Ltd., Baker, J. H. E., and Hardwick, J. R. Nov. 4, 1925. Semi-automatic exchange systems.-In a system in which calls from subscribers on a manual exchange are extended to subscribers on an automatic exchange by " B " operators having access to the automatic switching apparatus, all the junctions to a " B " operator are marked busy whilst she is dealing with a call. A relay group similar to that illustrated, is associated with each junction incoming to a " B " operator's position. When such junction is taken into use by an " A " operator, battery on the sleeve wire SW energizes relay S, which lights a calling lamp over wire CL, and closes a bridge across the outgoing conductors, including both windings of retard I and the upper winding of a polarized relay D : the polarizing lower winding of relay D is also energized. Relay S also grounds a common wire CP<1> thereby energizing relays such as SA associated with all the other idle junctions to this position : these relays SA connect battery to the sleeve wires SW to mark these junctions busy The operator now throws her listening key to connect her head-set over wires T1, T2, ascertains the wanted number, and throws her dialling key which bridges wires DK1, DK2 and closes circuits for a relay DS and for the upper winding of two-sten relav DC which onlv closes its contacts 5. 6. Relay DS connects the operator's dial over leads PD1 PD2 to the outgoing trunk, and the operator then dials the wanted number. When the dialling key is restored, the relay DC energizes fully over both its windings in series, opens the circuit of relay DS and the call lamp, removes from the common wire SW the ground used for busying other junctions, and closes a link in all junctions busy chain ATB, including a supervisory lamp. When the called party answers, relay D pulls up on the current reversal and energizes relay DA which locks up. On the called party hanging up. relay D relapses and both incoming lines are grounded over the windings of retard A to give the " A " operator a supervisory signal. When the " A " operator takes down, the relay S relapses and the relay group is restored to normal. If the " B " operator withdraws her plug and leaves the position, the common wire CP<2> is grounded, thereby energizing the relays SA and marking all the junctions busy. The first of each line of the junction jacks on the " A " operator's board is used as a group busy jack, a busy condition being put on it over a chain circuit GB, including contacts of relays S or SA, when all the nine junctions are busy either through there being a call in progress, in which case the relay S is energized, or owing to the fact that the " B " operator is attending to a call over another junction, when the relay SA will be energized.
Patent GB-496265-A (GB)
Title: Improvements in telephone and like electric signal transmission systems
IPC: H04L25/04
Filed: 1937-03-25
Abstract: 496,265. Phase difference measurements. STANDARD TELEPHONES & CABLES, Ltd., JACOBSEN, B. B., and FAIRLEY, F. March 25, 1937, No. 27799/38. Divided out of 494,418, [Group XXXIX]. [Class 37] [Also in Group XXXIX] In a circuit for detecting the direction of energy flow in a telephone line for controlling the operative direction of a repeater, the relative directions of two voltages depending respectively on the voltage across the line and the current in the line are ascertained by comparing the sum of these voltages with their difference. As shown in Fig. 1, a pair of detector valves 45, 46 controlling the respective windings of a polarized relay 47 has its input associated with the line by means of shunt and series transformers 42, 44 respectively. To avoid the unbalancing of the line the association may be by means of the circuit shown in Fig. 6. The transformer windings are designed and connected so that when energy flow is in the E-W direction the valve 45 (but not the valve 46) passes current and vice versa. Grid condenser and leak 50, 51 limit the effect of strong signals and prevent the reversal of an effect by the echo of the initiating signal. The apparatus can also be made more sensitive as regards energy in one direction. In a modification, Fig. 3 (not shown), the detectors are fed through amplifiers and it is arranged that the upper amplifier is paralysed when the lower detector passes current and vice versa. In a similar arrangement, Fig. 4, the passage of current through the upper detector 54 increases the sensitiveness of the upper amplifier 52 as well as paralysing the lower one 53. The converse operation takes place when current passes through the lower detector 55. The detectors in the arrangements just described may be of the metal oxide type. Other arrangements are referred to in which the preliminary amplifiers are of unequal gain and are subject to automatic volume control by a common circuit. Fig. 5 shows a further arrangement in which no valves are used.
Patent GB-1429226-A (GB)
Title: Drawing apparatus for sheet metal working
IPC: B21D45/04
Filed: 1973-06-12
Abstract: 1429226 Cupping L SCHULER GmbH 12 June 1973 [12 June 1972] 27906/73 Heading B3Q In a drawing press having a back-up holder which recedes into a die during a drawing stroke, a residual pressure less than that applied to it during a drawing stroke is applied to the holder during at least part of a return stroke so as to avoid damaging the drawn work. In one form, Fig. 1, the back-up holder 17 within the die 5 also functions as an ejector, a punch 1 co-operating with the die to cut-out the workpiece 18 and having a blank holder 3 operated by fluid or spring pressure. The holder 17 is operated by a piston 7 in a cylinder 6 to which oil from a reservoir is supplied through a valve 10, 11, the slide 10 of which is moved by a piston 9 in a cylinder 8. A one-way valve is placed between the reservoir and the valve 10, 11 and a pressure relief valve is located in a passage between a port 15 in the cylinder 6 and the reservoir. At the end of a working stroke, Fig. 2 (not shown), the valve-slide 10 is reset by movement of the piston 9 to the right, thus isolating cylinder 6 from the reservoir during part of the return stroke of the die, Fig. 3 (not shown). A spring-pressed plunger 22 in the slide 10 maintains a residual pressure of 2-6 atmospheres in the cylinder 6 during this part of the return stroke. The residual pressure generator may, alternatively, be located in the cylinder wall or in a remote position and be connected to the cylinder by a pipe; it may be constituted by a pump or reservoir. During the last part of the stroke of the die, Fig. 4 (not shown), piston 9 resets the valve to supply reservoir oil to cylinder 6 for ejecting the work. As applied to drawing a cap with an end depression, Fig. 5, the back up holder is in the form of a second blank holder 30 which remains in a receded position (Fig. 6) in the die 5 during ejection of the work by a separate cam-operated ejector 32. An annular piston 7 operates in the cylinder 6, the connection of which to the reservoir through the valve 10, 11 is interrupted at the beginning of a drawing operation.
Patent GB-775417-A (GB)
Title: Improvements in or relating to indicating or registering devices for meters
IPC: G01F15/07
Filed: 1955-09-30
Abstract: 775,417. Counting-apparatus. SANGAMO WESTON, Ltd. Sept. 30, 1955 [Sept. 30, 1954], No. 27945/55. Class 106 (1). The registering mechanism described in Specification 764,638 is modified in that the means for controlling the normal fluid pressure prevailing in the pulse transmitting system comprises a leak device permitting restricted fluid flow into and out of the pulse transmitting system and incapable of responding to sudden pressure differentials created by the normal pulses. The leak device 111, Fig. 2, is located at the transmitter and is mounted on the diaphragm chamber cover 101 to allow flow between the gallery chamber 15 and the interior of the diaphragm chamber. A similar leak device may be located at the receiver to allow communication between the atmosphere and the interior of the diaphragm chamber. If the transmission system operates with atmospheric air the leak device is at the transmitter and is sealed off from the chamber 15. The inlet of the leak device may be sealed off from the atmosphere and from the meter fluid by a thin impermeable membrane.
Patent GB-538053-A (GB)
Title: Improvements in or relating to frame and panel structures
IPC: E04B1/21
Filed: 1939-10-16
Abstract: 538,053. Walls. FRANCOIS CEMENTATION CO., Ltd., and NEELANDS, A. R. Oct, 16, 1939, Nos. 28001/39 and 12417/40. [Class 20 (iv)] Wall sections of reinforced concrete, or of concrete or plaster rendering on vegetable or wire meshwork are cast in situ and attached to framework members of wood, concrete, steel and the like to form walls by means of resilient metal couplings with the use of elastic putty placed between the sections and framework members to allow for expansion and contraction of the panels. Rods C of metal or wood are embedded within the edges of the sections and a layer of bituminous or other elastic putty D is placed between, the panels and supports, the joint being completed by wire E encircling the support A and passing around the rods C disposed in the edges of the sections. Loops of wire C, Fig. 3, may pass across the bars in the sections to the reinforcing bars H of the concrete frame members A, or hook bolts J, Fig. 4, with elastic putty D disposed beneath the nut may be used. The flexible securing means and the bars C are positioned together with the reinforcement b<SP>1</SP> for the sections before the concrete is cast. Specification 426,098 and U.S.A. Specifications 2,050,290 and 2,110,488, are referred to.