baber/WOPTO huggingface dataset:
Patent GB-374780-A (GB)
Title: Improvements in or relating to brooches
IPC: A44C1/00
Filed: 1931-12-03
Abstract: 374,780. Safety-pins; dress pins. CARTIER SOC. ANON., 13, Rue de la Paix, Paris. Dec. 3, 1931, No. 33546. Convention date, Jan. 28. [Class 131.] A clip brooch of the kind comprising upper and lower jaws connected by a spring hinge so that it w i I remain in either the open or closed position, is constructed with the lower jaw in the form of one or more pins. Figs. 1 and 4 show an ornamented top member a furnished with spikes or the like b and co-operating with a lower jaw comprising a pair of pins c connected by a crossbar forming a hinge and also carrying a cam e acted on by the spring d. When fastening the brooch to the edge of a fabric, the pins act frictionally as a. clipping-jaw, but when fastening to the middle of a fabric the pins pierce the fabric before attaining the clipping position. The upper jaw may hold an article such as a watch, powder-box or the like. Both jaws may be curved to fit a rounded surface.
Patent GB-851357-A (GB)
Title: Security locks
IPC: E05B29/00
Filed: 1956-11-05
Abstract: 851,357. Barrel locks. PATRIGNANI, T. Nov. 5, 1956, No. 33650/56. Class 44. In a plug and cylinder unit for a lock, the plug has at least one tumbler with a hole for the key to pass through, and can be slid axially, when the key is inserted, between a free position in which it can be rotated to actuate the lock and a fixed position in which rotation of the plug is impossible. The cylinder 1 has a series of inwardly extending annular ribs 2, separated by annular grooves 3; and guide washers 4, encircled by the ribs 2, are each provided with cross-shaped apertures 6 from the arms of which extend radial gutters 5. Plate tumblers 8 separate the guide washers and are each provided with an eccentric aperture 24. Balls 9 within each aperture are constrained to move in the respective channels formed by respective pairs of parallel gutters in the adjacent guide washers; and a fifth ball 10, set in a hole in each tumbler 8 and also constrained to move in one of these channels, serves as a sliding pivot for the respective tumbler. A key 7 of cross-shaped section formed by four ribs of wavy profile is so shaped that, when inserted centrally through the guide washers with the ribs engaging the apertures 6 therein, the tumblers 8 are urged, by the ribs engaging the balls which in turn engage the tumbler apertures, into coaxial relationship with the guide washers. The system of guide washers and tumblers, constituting the plug, may then be displaced axially against a spring 19, by pressure on the key, so as to disengage projections 13 and 21, formed on the end members 11, 20 of the plug, from notches in the outermost ribs 2a, 2b, and thus enable the plug and a rod 18 attached thereto to be rotated to release a bolt. The ribs 2 may comprise only arcs of an annular ring, and the tumblers and guide washers need not be circular. In a modification the tumblers are so shaped, Figs. 9 and 10 (not shown), as to have two or more positions in which no overlap with the ribs 2 occurs, and thus the lock may be operable by two or more different keys. Means are also described for rigidily securing the guide washers into a composite block, Fig. 13 (not shown), so as to reduce the risk of distortion of the lock elements.
Patent GB-900620-A (GB)
Title: Improvements in or relating to electrical controllers
Inventor: OUGHTON HARRY GEORGE
IPC: G05B1/04
Filed: 1959-10-07
Abstract: 900,620. Automatic temperature-control systems. FOSTER INSTRUMENT CO. Ltd. Oct. 26, 1960 [Oct. 7, 1959], No. 33964/59. Addition to 897,637. Class 38 (4). An electrical control system comprises a first device cycling between two states at a frequency determined by a time constant circuit and a second switching device responding to change of state of the first device with a delay determined by a second time constant circuit, time constant of one of the circuits being varied in dependence on an input signal to the system. As shown, a moving-coil MC carrying a pointer P is deflected in dependence on the output from an electrical pyrometer, not shown, connected to terminals AA. A vane 3 carried on the pointer interrupts a light-beam from a lamp 1 to a photo-cell 2, the resistance of which increases with reduction in illumination. A relay 4 energized from a power unit PU is caused to cycle by a contact 4b at a rate determined by the resistance-capacity circuit formed by the photo-cell 2, a resistance R4 and a capacitor C4. A further relay 5 is energized through a contact 4a and a resistancecapacity circuit comprising resistors R5, R6 and a capacitor C5. When the temperature measured by the pyrometer is below a desired value the photo-cell is fully illuminated and the time constant of the resistance-capacity circuit associated with relay 4 is lower than that for relay 5 which is continuously energized to maintain a heating circuit through the contacts 5a and terminals CC. As the measured temperature rises the time-constant of the relay 4 increase so that the relay 5 cycles at an on-off ratio which falls with increase in temperature so as to tend to maintain the measured temperature constant.
Patent GB-1015667-A (GB)
Title: Indexing device
IPC: B23Q16/10
Filed: 1962-09-05
Abstract: 1,015,667. Indexing mechanism. AMERICAN TOOL WORKS CO. Sept. 5, 1962 [May 18, 1962], No. 34072/62. Heading B3B and B3T. An indexing device for a tool post of a machine tool is of the type wherein the tool post is automatically moved away from its support, rotated to a predetermined indexed position and then returned to its support, and comprises a base 10 and a tool post 12 rotatably mounted on a shaft 15. Between the tool post and shaft is located a sleeve 17 which is secured to the post by a nut 20 to prevent relative axial movement. A splined driving ring 27 in cooperation with a threaded bushing 25 which engages the upper end of the shaft 15 facilitates relative rotation between the shaft and sleeve before they rotate as a unit. The shaft is supported at its lower end by thrust bearings and is driven by a single electric motor through a worm and wheel gear 80. To effect locating and locking of the tool post in a given indexed position an annular ring 45 is secured to the tool post and has depending clutch teeth 48 which engage upwardly extending teeth 49 on a lockring 50 secured to the base 10. To index the tool post the shaft 15 is rotated by the worm and wheel 80 from the electric motor, this rotation of the shaft initially only lifts the tool post, through the threaded engagement between the bushing 25 and shaft, to disengage the clutch teeth 48 and 49. Further rotation of the shaft effects, through the driving-ring 27, rotation of the tool post and shaft together until the required indexed position is reached. Whereupon, the motor drive is reversed, halting the rotation of the tool-post and lowering the tool post on to the base 10 and effecting engagement of the clutch teeth 48, 49. To facilitate rough positioning of the tool post and provide rotary restraint during the downward movement thereof, a solenoid-operated spring-loaded plunger is incorporated and is movable into and out of recesses 47 in the annular ring 45. The plunger operation is inter-connected with the shaft motor circuit to effect the movements of the plunger at the correct indexed position. The rotational movement of the tool post is controlled by a cam-ring 110 which co-operates with electrical control switches 113 which are connected to a control circuit in a binary coding system. The cam ring 110 engages with a driving ring 124 in the tool post by means of lugs 122, 123. The selection of indexing positions may be effected manually or automatically by preselection in a tape controlled or other type of unit. Electrical control circuits are described including a " jog " circuit to facilitate the release of the clamping pressures between the nut 20 and the base 10. The cam ring driving means facilitates interchangeability of tool posts with prelocated tools, by maintaining correct orientation of the control mechanism in relation to the index mechanism.
Patent GB-452857-A (GB)
Title: Improvements in and relating to processes for the production of photographic emulsions, and the emulsions obtained thereby
IPC: G03C1/015
Filed: 1934-11-27
Abstract: 452,857. Photographic silver halide emulsions. CLAUS, B., 114, Magdoburgerstrasse, Halle-on-Saale, Germany. Nov. 27, 1934, No. 34113. Void [Abridged as open to inspection under Sect. 91 of the Acts, May 29, 1935]. [Class 98 (ii)] Photographic emulsions are produced by precipitating silver halide, preferably silver bromide, from a silver and halogen salt solution in the absence of or in the presence of a small quantity of an emulsifiable binding medium, for example gelatine, washing the precipitated silver halide free from the salt solution, sensitizing the silver halide before or after washing, dispersing the washed silver halide in an emulsifiable binding medium while subjecting it to the action of rapid mechanical oscillations, and ripening the emulsion while the latter is subject to the oscillations. To a 10 per cent solution of potassium bromide, containing about one thirtieth part of potassium iodide and also erythrosin in a concontration of about 1 part in 5000, is added a 10 per cent solution of silver nitrate. The precipitated silver bromide is washed, part of the gelatine added, and the mixture subjected to high frequency mechanical oscillations and brought to a temperature of 70 C. After 20 minutes a 2 per cent solution of ammonia is added and the mixture maintained for 15 minutes at 65 C. while subjected to the mechanical oscillations. The remainder of the gelatine is added and the emulsion ripened at 60 C., under the action of the oscillations.
Patent GB-1159381-A (GB)
Title: Machine Tools
Inventor: FIRTH DONALD
IPC: B23B3/06
Filed: 1965-08-10
Abstract: 1,159,381. Machine tools. NATIONAL RESEARCH DEVELOPMENT CORP. 12 Aug., 1966 [10 Aug., 1965], No. 34229/65. Headings B3B and B3T. A machine tool comprises, in a housing 11, a rotatable work-holder 18 which can be moved transversely and axially to engage the work with a tool in a holder. The chuck 18 is mounted eccentrically on a member (16) mounted eccentrically in an outer member 14 which is rotatable in the housing 11. A further housing 22 encloses the working chamber 21 and is formed with a land 24 on an end wall and a land 24<SP>1</SP> on the peripheral wall. The land 24 carries tool-holders 26, 27, 28, 25 carrying a drill, a boring tool and turning tools respectively. Land 24<SP>1</SP> is provided with two sets of three tools each, 37, 38. Work is fed in through an aperture 40. The member 16, Fig. 4, is fed axially by oil fed to ports 53 or 54 and slides in hydrostatic bearings 55. The oil is fed through a ball-joint 104 and telescopic pipes 103. The spindle 60 carrying the chuck 18 is rotated in hydrostatic bearings 65<SP>1</SP>, 66<SP>1</SP> by twin swash-plate motors 61 driving through gears 62 and controlled by angularly adjustable port plates 73<SP>1</SP>, 73<SP>11</SP> and swash plates 81<SP>1</SP>, 81<SP>11</SP> controlled independently by hydraulic means. The member 16 is rotated within the member 14 by a ball motor 86 having an eccentric cam ring 84 splined to webs 81 on the member 16. A similar motor 110 and cam ring 111 rotate the member 14 relatively to the housing 11. Both motors are controlled by electrically operated valves 95, 117. All movement may be controlled manually, or by a computer for generating shapes and may be controlled in speed such as to provide a constant cutting speed. Air gauges may sense the size of the workpiece during machining and compensation made for wear. A further ball motor 120 may be provided to rotate the spindle 60 to a set position in addition to the swash plate motors for continuous rotation. In a modification, the machine tool is mounted in trunnions 150, Figs. 5 and 6, and has a free open end 153 so that, by positioning the tool vertically, swarf and cooling fluid may drop free on to a conveyer. Additionally, workpieces are fed by a conveyer 160 to a vibrating feeder 161 which delivers them automatically to the chuck. Finished workpieces pass from a shoot 162 back to the conveyer.
Patent GB-212976-A (GB)
Title: Improvements in turning-lathes
IPC: B23Q1/01
Filed: 1922-12-18
Abstract: 212,976. Wade, F. R., and C. A. V. Small Tools, Ltd. Dec. 18, 1922. Lathes; lathe centres and drivers. - A turning - lathe comprises a slotted tubular bed d supporting the saddle wand tailstock x and carried in pedestals b, f the former being integral with a headstock a carrying a spindle l driven by a stepped pulley 9. The spindle bearings 2 are adjustable by means of screws, and a thrust washer 5 is provided at the forward end which carries also a driver 11 having a centre 12 and driving pin 13. The pedestals are fixed to a bench n by means of bolts l coacting with segmental nuts h which are located within the bed and have projections passing through the slot in the bed and into a recess in the pedestals. The tailstock x is guided on the bed by a segmental nut 49 having a projection engaging the slot e and held in place by a bolt 51, the part x being split and clamped by a screw. The back centre 41 is of square section and is carried in a bearing 42 and adjusted by a hand-operated screw 43 which is locked against axial movement in its bearing 46 by means of keys. The feed screw p, operated by a hand wheel q, is mounted in a slotted bearing u secured in the pedestal f, and is held against axial movement by keys t shaped as shown in Fig. 3. The saddle is provided with a cross slide 14 and tool post 15 and may be clamped to the bed by screws 19, the feed nut v having a projection which engages the slot e to prevent rotary movement. The cross slide is provided with an integral split guide 23 engaging ways on the saddle and bored to receive the crossfeed screw 24 which engages a nut 26. The halves of the split guide 23 are expanded to take up wear by means of a taper-headed bolt 27, and wearing strips 34 may be provided. The crossfeed screw is prevented from axial movement by keys similar to those provided for the fed screw p.
Patent GB-639078-A (GB)
Title: Improvements in or relating to reciprocating compressor
IPC: F04B25/00
Filed: 1947-12-29
Abstract: 639,078. Reciprocating air compressors. INGERSOLL-RAND CO. Dec. 29, 1947, No. 34482. Convention date, Dec. 28, 1946. [Class 8(i)] In a multi-stage compressor having a frame, first and second stage cylinders mounted on the frame, an inter-stage passage, inlet and discharge passages for the first and second stages respectively and conduits for the inlet and discharge passages secured to the frame, the said passages are formed integrally with the cylinders and the frame. A vertical first stage cylinder 23 and a horizontal second stage cylinder 25 are mounted on the top and on one side respectively of a boxshaped frame 21 which encloses a common crankshaft 31 and the connecting rods 32, 45 and crossheads 34, 43 for the pistons 29, 30 and also houses an intercooler 61 in the portion of the frame 21 lying between the longitudinal axes of the two cylinders 23, 25. The gas to be compressed is drawn from an inlet conduit 52 into a passage 54 extending through the upper part of the frame 21 and the cylinder 23, compressed in the first piston chamber 27, discharged to the second stage piston chamber 28 through inter-stage passage 55 in both of the cylinders 23, 25, and in the upper portion of the frame 21 containing the intercooler 61, compressed in the second stage cylinder and finally discharged through a passage 56 in the cylinder 25 and in the lower portion of the frame 21 to a discharge conduit 58. Cooling condensate contained in the fluid is collected on a baffle 63 and drained to a well 64 on one side of the crosshead guide 44.
Patent GB-1404187-A (GB)
Title: Channel selector with control by binary memory circuit
IPC: H03J5/00
Filed: 1972-07-24
Abstract: 1404187 Channel selector tuning arrangements MATSUSHITA ELECTRIC INDUSTRIAL CO Ltd 24 July 1972 [23 July 1971 (2)] 34562/72 Heading H3Q A channel selector comprises a binary memory 200 to store binary signals corresponding to channels to be selected, a channel specifying circuit 100 to specify the content of the binary memory circuit during channel selecting operation, a group of gates 302, 303, 304 to selectively deliver an output in accordance with the binary output of the memory circuit, a plurality of variable resistors 401, 402, 403 which are connected respectively with the outputs of the group of gates and which have preset channel selecting voltage applied to a variable capacitance diode of an electronic tuner 500, and a counter 600 which provides coarse changes in wave band of the tuner 500 so that the counter determined which one of a plurality of wavebands, each including a plurality of channels, the tuner 500 is tuned to, whilst the binary memory 200 determines which of a plurality of channels is selected in the wave band determined by the counter. As shown the required channel is selected by a keyboard 101 and is read into the binary memory circuit 200 which includes a memory 201 such as a ring counter storing the binary signal from an encoder 102 and shift registers 202 and 203 which read the first and second digits of the signal C stored in memory 201. The outputs from the shift registers 202, 203 pass to a signal selecting network 301 such as a diode matrix or digital switch to select a NAND gate 302, 303, 304 corresponding to the channel selected. The NAND gate selected connects the tuning voltage from an associated variable resistor 401-403 to a variable capacitance diode of the tuner 500. A counter 601 is driven by pulses from a generator 800 via AND gate 604 until the channel number stored in the binary memory 200 corresponds to the number counted by the counter 601 as determined by a comparator 602. The counter 601 includes a multiplexer and its outputs D1-D4 provide waveband change-over signals to the tuner 500 for band switching such as for VHF low channels, VHF high channels and for UHF channels. Remote control may be obtained from a transmitter 103 which provides electromagnetic wave, sound or light signals to a sensor 104 such as a microphone. The output from a receiver 105 is read into the binary memory 200 via an OR gate 204. If the channel selected by the remote control signal does not correspond to a channel set by the NAND gates 302-304 then the AND gate 205 is enabled and pulses from the generator 800 are supplied to the content of the binary memory 200. If this increased content does not correspond to the desired channel the above operation will be repeated until the number of the desired channel has been stored in the memory 201. The channel number may be displayed such as in a picture or character display tube 902. Specification 1,208,849 is referred to.
Patent GB-976323-A (GB)
Title: A method of producing two internal combustion engines having different compression ratios
Inventor: WORTERS RICHARD ALLEN SINCLAIR
IPC: F02B75/22
Filed: 1962-09-11
Abstract: 976,323. Cylinders. FORD MOTOR CO. Ltd. Sept. 2, 1963 [Sept. 11, 1962], No. 34607/62. Heading F1B. Engines with different compression ratios are formed from identical blocks and cylinder heads by forming the valve seats 16 at the base of recesses 9 in the planer surface of the cylinder head,whereby the head can be used as initially formed to provide one compression ratio or the material 13 around the valve seats can be ground away to provide a different compression ratio.
Patent GB-393975-A (GB)
Title: Improvements relating to coin mechanism for prepayment meters and the like
IPC: G07F15/02
Filed: 1931-12-14
Abstract: 393,975. Prepayment mechanism for meters. UNITED GAS INDUSTRIES, Ltd., 51, Lincoln's Inn Fields, SMITH, E. W., 186, Kennington Park Road, and CHARLES, A., Meter Works, Rowan Road, Streatham Vale, all in London. Dec. 14, 1931, No. 34653. [Class 27.] Coin action, thrust and with delivery proportionate to value of coin.-Coin holder mechanism for prepayment meters operable without adjustment by pennies and shillings and especially applicable to the mechanism described in Specification 392,530, comprises a striker plate g, as shown in the Figure, which, when a shilling is inserted, has imparted to it a sliding movement towards the axis of the coin holder a, while on the insertion of a penny, it has imparted to it a pivotal movement in addition to the sliding movement. The sliding movement causes a tooth g<4> at one end of the plate to engage and rotate rogether two quantity wheels h, i, and the additional pivotal movement causes a tooth g<5> at the other end to engage and rotate the wheel h only. The plate g has a slot g<1>, g<3> which guides its movements and engages over a pin g<2> fixed to the holder a. The plate is connected by pins a4, a<9> to a coin table or slide a<1> located with the holder a for engagement by a coin thrust through coin slots in a pricechange disc c and a disc b which carries the holder a and is rotated by a handle f. The pin a4 works in a pair of slots a<5> in the sides of the holder a, each slot comprising a straight portion a<6> and a curved portion a<7>. The pin a<9> works in a pair of short slots a<8> and, when a penny is inserted, constitutes the pivot about which the slide a<1> and plate g rotate. When a shilling is used, the pins a<4>, a<9> slide in the slots a<6>, a<8> only. When a coin is discharged, a spring a<2> returns the parts a<1>, g to their initial position in the holder a.
Patent GB-652267-A (GB)
Title: Improvements in or relating to cathode ray tubes and like devices
IPC: H01J29/80
Filed: 1947-12-30
Abstract: 652,267. Cathode-ray tubes. GENERAL ELECTRIC CO., Ltd., and ALLARD, L. S. Dec. 30, 1947, No. 34751. [Class 39 (i)] A circuit arrangement comprises a lowvoltage cathode-ray tube (i.e. a tube wherein the energy of the electrons reaching the target is about 100 volts so that the secondary emission ratio of the target is approximately unity) provided with a plurality of electrodes to change the velocity of the electrons after their deflection, the arrangement being such that one or more of these electrodes other than the final one near the target is maintained at a higher potential than the final electrode. The electrons thus have a higher velocity through the deflecting system and are subsequently decelerated, which enables one to obtain better focusing. The potentials of the electrodes are preferably so arranged that the electric field is substantially constant along the axis between the first electrode and the target surface. In the Figure the electrodes 6, 7, 8, 9, 10 are in the form of conducting bands on the envelope and may be of graphite or of metal; the width of the bands progressively increases in the direction of the electron beam. The potentials of electrodes 6, 7, 8, 9, 10 may be 1500, 1000, 500, 200 and 100 volts positive respectively with respect to the cathode. To reduce distortion the envelope may be in the form of a cylindrical portion joined to a cylindrical neck of smaller diameter. The invention may be applied to tubes'with a fluorescent screen, or to storage tubes using a target comprising a mica sheet covered with a plurality of discrete photo-electric particles. Specification 652,255 is referred to.