baber/WOPTO huggingface dataset:
Patent GB-725699-A (GB)
Title: Photo-typesetting device
IPC: B41B21/18
Filed: 1953-02-25
Abstract: 725,699. Photographic type-composing apparatus. HEINE, H. Feb. 25, 1953 [March 5, 1952], No. 5281/53. Class 98 (1). In type-composing apparatus in which characters are photographed on a light-sensitive sheet moved after each exposure and in which the enlargement ratio is variable and the movement is varied accordingly, the photographic lens system comprises elements movable to adjust the focal length and means to adjust the lens elements so that the distance between the character-bearing element and the light-sensitive sheet is unaltered by a variation of focal length. As shown, the character-bearing element C has a projection 8 inversely proportional to the character width. Actuating mechanism, e.g. an electromagnet timed by a condenser or an electric motor, moves the feeler 6 through rack-and-pinion mechanism for a length determined by the length of the projection 8 and also feeds the film 1a through further rack-andpinion mechanism and gearing including a oneway drive 12 for a corresponding distance. The feeler 6 may be indirectly connected to the rack 3 by motion-transmitting means, e.g. a linkage. When the feeler 6 engages the projection 8, a relay is energized through the leads 21, 22 to deenergize the electrical drive means and the gearing 3, 4 and 5 and the associated feeler 6 are returned by a spring to their original position. The lens elements 13, 14 have followers 29, 30 engaging cam grooves on the spindle 19 to vary their separation and hence the focal length of the system without the necessity of moving the film 1a or the character-bearing element C. The film feed is varied in conformity with the enlargement ratio by adjustment of the fulcrum 10 of the lever 9 by means of the follower 31 engaging in the cam groove in the spindle 18 which is geared to the spindle 19 and which can be turned by the lever 23. The spindles 18, 19 may be replaced by cam discs. The film may be replaced by a light-sensitive sheet carried on a cylinder moved by screw-and-nut mechanism. The spindle 18 is connected to the shaft of pinion 16 by clutch mechanism which may be disengaged to permit spindle 18 to be turned by the lever 23 independently of the spindle 19 to adjust the location of the fulcrum 10, the clutch being then re-engaged by a spring. The shutter 20 controlling the exposure time is operated by the apparatus 24, and may be dispensed with if a gas discharge tube is used, the exposure being then timed electrically. The light-sensitive material may be diazotype material.
Patent GB-525308-A (GB)
Title: Improvements in or connected with electrical toys and like models
IPC: A63H19/34
Filed: 1939-02-17
Abstract: 525,308. Toy electric signals and models. KAHN, S., and PRIOR, F. J. Feb. 17, 1939, No. 5316. [Class 132 (iii)] Toy electric signals and other models or toys comprise a separate base 1 of insulating material having socket contacts 3 for connecting in the positive leads, and a socket contact 2 for connecting in the negative lead of an electric circuit, a metal box or cover 6 for engaging over the base, said box carrying a metal tubular post 8 supporting a box-like head 9 having insulated contacts 16, a holder for electric bulbs located in said head and in electrical connection therewith, a plate of insulating material 20 in the top of box 6 and carrying pin contacts 21 corresponding to the positive sockets in the base and connected by insulated wires 26 to the insulated contacts in the head, and a pin contact 23 corresponding to the negative socket connected to the box and through the post and head to the bulb holders, each bulb contacting one of the contacts 16. The switch is situated externally.
Patent GB-966081-A (GB)
Title: Improvements in electronic controllers
Inventor: STEGHART FRITZ LUDWIG FELIX
IPC: G05D23/24
Filed: 1960-02-15
Abstract: 966,081. Automatic temperature control systems. SATCHWELL CONTROLS Ltd. Jan. 27, 1961 [Feb. 15, 1960], No. 5353/60. Heading G3R. In a space heating installation in which air passes over a heat exchanger into the space, a temperature sensitive limiter bridge in the air duct overrides the basic temperature control system to prevent the air in the duct from falling below a given temperature. Four alternative forms of limiter bridge are discussed, they may operate at either an upper or a lower limit. A main temperature sensitive A. C. bridge 29, within the space to be heated, controls a reversible motor M which operates the steam valve of a heat exchanger (not shown) over which air is passed through a duct into the space. The output of bridge 29, which reverses in phase in accordance with the sense of the temperature deviation is amplified at 30 and applied to a half-wave A. C. fed valve 31 which produces a half-wave output signal having an amplitude proportional to the phase of the input. This signal is backed-off by a half-wave voltage across resistor 34 and the resultant controls a three position relay 37 through an amplifier 35. The limiter bridge 4, 5, 6, 7 is supplied with half-wave alternating current by a rectifier 3 and is connected by a further rectifier 14 in series with the output of the main bridge 29. The limiter bridge is balanced at the limiting temperature and the rectifier 14 is so poled that an output signal is only produced when this bridge is unbalanced in the required direction. Alternative forms of bridge consist of D.C. bridges Figs. 3 and 4 (not shown) which block or unblock a pair of rectifiers connecting an A. C. signal to the output, so that an A.C. output is obtained only when the bridge is unbalanced in the required direction; and an A.C. bridge Fig. 5 (not shown) which blocks or unblocks a pair of rectifiers connecting an A. C. signal to the output according to the relative phase of the two signals.
Patent GB-525322-A (GB)
Title: Means for mounting panels such as vehicle windows in frames
IPC: B60J10/02
Filed: 1939-02-17
Abstract: 525,322. Panel or window mountings. LEYLAND MOTORS, Ltd., and CHARNOCK, A. J. Feb. 17, 1939, No. 5367. [Class 20 (iii)] A mounting for a panel such as a vehicle window comprises a strip of rubber or other' resilient material having a channel 1 which grips a panel placed therein and a groove 2 into which a flange on the frame 4 enters, the panel and the flange being parallel. The 'forward end of the strip presses firmly on the frame 4. Specifications 16582/04, [Class 20], 426,046, 442,552, 454,936, 458,974, 484,765, 492,793 and 505,960 are referred to.
Patent GB-1497742-A (GB)
Title: Lateral channel compressor
IPC: F04D23/00
Filed: 1975-02-07
Abstract: 1497742 Circumferential-flow pumps SIEMENS AG 7 Feb 1975 [26 Feb 1974] 5415/75 Heading F1C In a compressor comprising a lateral channel 1 entering between an inlet port 4 and an outlet port 5, some of the compressed gas trapped in the spaces between the impeller vanes 3 during the passage of the vanes past the sealing land 6 which separates the inlet and outlet ports is discharged at an opening 7 to a return line 8 leading to an opening 9 in the lateral channel, the cross-sectional area of the lateral channel being increased downstream of the opening 9 to accommodate the returned flow. More than one return line may be provided. The removal, via the line or lines 8, of gas which would otherwise have been carried around to the inlet end of the lateral channel 1 permits a larger amount of gas to be drawn in through the inlet port 4.
Patent GB-325112-A (GB)
Title: Apparatus for the examination of dyed materials in artificial light
IPC: G01N21/29
Filed: 1929-02-18
Abstract: 325,112. Imperial Chemical Industries, Ltd., Blackshaw, H., and Lawrie, L. G. Feb. 18, 1929. Photometric apparatus; colours, comparing. - For the examination of dyed materials by artificial light and by daylight a viewing casing 1 is provided associated with a lighting casing 2 enclosing the artificial light source, the two casings being hinged to a baseboard 3 on which the material 11 is placed. The viewing casing 1 is divided by a partition 5 and is fitted with an eyepiece so that when turned into position over a specimen of the material 11, the part of the material illuminated by daylight may be directly compared with that part of the material situated under the lighting casing 2 and illuminated by artificial light. The lighting casing 2 may be fitted with a colour filter and a rheostat for varying the colour and intensity of the illumination. In a modification the apparatus is provided with two sources of artificial illumination by duplicating the lighting casing 2 and the effect of different lighting compared. Daylight lamps in conjunction with filters may also be used,. A daylight lamp 13 is provided as shown for use when natural daylight is not available.
Patent GB-385136-A (GB)
Title: Improvements relating to apparatus for forming box parts
IPC: B31B50/00
Filed: 1932-02-23
Abstract: 385,136. Making boxes. UNIVERSELLE CIGARETTENMASCHINENFABRIK J. C. MœLLER & CO., 48, Zwickauerstrasse, Dresden, Germany. Feb. 23, 1932, No. 5426. Convention date, Feb. 23, 1931. [Class 18.] In making box bodies having an integral inset neck portion b, c, Fig. 5, and tongues a extending from two opposite walls b<1> and abutting against the other two walls c<1> below the neck portion, the blank Z, Fig. 1, supported on four blocks 2 above the shaping channel 1 is engaged by a forming block F forced from between spring fingers 14 by a two-part reciprocating die 3, 7 through the channel and against a stationary abutment while fingers 6 on the die part 3 rigidly connected with the reciprocating plunger 31 engage the folded tongues a, Fig. 3, as the die part 7 is arrested and move them into correct position against the box walls c<1> to which they become attached, spots of adhesive being provided on the parts of the walls c<1> disposed above the blocks 2. The stationary abutment is formed by the bottoms 21 of chambers 19 mounted on a conveyer chain 18 and as each chamber arrives below the shaping channel it moves on to a base-plate 27 which relieves the members 22 guiding the chambers from the pressure of the die 3, 7. The members 22 at the sides at which the fingers 6 operate are provided with spring-controlled members 24 which engage the sides c<1>of the box body, which is thereafter carried by the chain to the devices for applying the box-lid and edgebinding strip &c. The apparatus can be used in the arrangement described in Specification 351,631, and. the box is described in Specification 332,095, [Class 18, Boxes &c.].
Patent GB-266750-A (GB)
Title: Improved flexible shaft
IPC: F16C1/02
Filed: 1927-02-28
Abstract: 266,750. Pletscher, F. Feb. 28. 1926. [Convention date]. Flexible shafts.-Hollow flexible shafting is formed by helically winding a band, the edges of each helix of which have teeth 6, 8 which may be straight, curved and straight respectively, as shown, or stepped so as to be suitable, for transmission in one direction only. At least one face of each interengaging tooth pair is parallel to the shaft axis. Several such shafts may be arranged coaxially and secured together at each end by soldering &c.
Patent GB-1248893-A (GB)
Title: Fail-safe thermostatic fluid valve structure
Inventor: WONG BACKMAN
IPC: F01P11/16
Filed: 1970-02-05
Abstract: 1,248,893. Valves. THOMSON INTERNATIONAL CORP. 5 Feb., 1970, No. 5505/70. Heading F2V. Fail-safe thermostatic valve particularly for I.C. engine cooling system, comprises a temperature responsive valve having a valve member 26 co-operating with a seat 18, the valve being connected to an attachment means 38, for fixing to a conduit 14, through fusible connector means 32. On breaking of this fusible connection owing to excess temperature, the whole valve lifts from the attachment means 38 to open a passage for the fluid. The connector means may as shown be a sleeve of solder or plastics material having flange-like tabs which will normally separate at the juncture of the tabs with the sleeve part. In other embodiments a disc part 34 of a frame 16 is soldered to the part 38, Figs. 7-12 (not shown). The connector may in addition be frangible and break under excess fluid pressure.
Patent GB-277610-A (GB)
Title: Light actuated electric generator
IPC: H01L31/06
Filed: 1927-02-28
Abstract: 277,610. Westinghouse Brake & Saxby Signal Co., Ltd.. (Assignees of Geiger, P. H.). Sept. 14, 1926. [Convention date]. Light-sensitive electric devices.-A light-actuated device for generating an electric current without the use of a liquid electrolyte comprises a metal coated with a compound of the same metal. Fig. 1 shows a plate 1 of copper coated with a layer 2 of cuprous oxide. One circuit terminal 8 is connected to the plate 1 and the other terminal 7 to a spiral electrode 3 clamped between the coating 2 and a glass plate 4 through which the light is incident on the coating.
Patent GB-1493165-A (GB)
Title: Tyre building machine
IPC: B29D30/00
Filed: 1975-02-10
Abstract: 1493165 Tyre building machines NRM CORP 10 Feb 1975 [6 May 1974] 5575/75 Heading B7C A tyre building machine comprises a radially expansible and contractible drum D, and bead core carriers 10, 12 mounted on carriages 14 movable symmetrically and in opposite directions along rails 21 by means of a rack 39, 40 connected to each carriage meshing with a common pinion 37, the outboard carriage 14 being releasably connected to its rack 40 by fastening means 70. The machine also includes means for moving the outboard carriage away from the drum when that carriage is disconnected from its rack to permit placement of the bead cores on the carriers and removal of a finished tyre from the drum. As illustrated the drum supporting shaft is supported at one end by a fixed housing 3 and at the other end is detachably connected to a tail-stock assembly on a second carriage 18 movable along the rails. When the second carriage is in its illustrated position with stop 22 engaging a stop 23, the carriages 14 are in their illustrated positions, and carcass plies have been applied to the drum D, the carriages 14 are moved by cylinders 24 provided only on the tail-stock assembly or on both the latter assembly and the fixed housing 3 until the bead cores B are located at the ends of the drum. Adjustable stops 52 engage hook-like stops 55 when this position is reached to prevent misplacement of the bead cores in the event of failure of hydraulic control. Expansion of the drum will clamp the bead cores, and the bead core holders 30 are pivoted to their inoperative positions and the carriages are moved away from each other. The drum is expanded further. Subsequently bladders 7 are inflated and the carriages 14 are advanced towards each other, so that rings 15, 16 assist the bladders in carcass turn-up and stitching. During this latter movement the stops 55 are pivoted (Fig. 8, not shown) to permit the advance of the carriages beyond the bead core application position. Stops 58, 65 engage walls 54 and 25 respectively in the event of hydraulic control failure. The carriages 14 are again moved apart, and the bladders are deflated. Additional plies and other tyre materials, e.g. tread stock, may be applied to the carcass. Finally the drum is collapsed, and bolt 76 of fastening means 70 normally engaging in aperture 75 in rack 40, to connect the latter and the left-hand carriage 14, is withdrawn on actuation of cylinder 77 prior to cylinder 17 being actuated to move the carriage 18 and the left-hand carriage 14 away from the drum to permit removal of the tyre carcass and placement of further bead cores B. Housing 36 accommodating the pinion 37 and portions of racks 39, 40 is movable laterally relative to the rails by rotating eccentric pins 45.
Patent GB-197098-A (GB)
Title: Improvements in wireless telegraph and telephone systems
IPC: H04B1/50
Filed: 1922-02-25
Abstract: 197,098. Warner, H. J., and Kinman, T. H. Feb. 25, 1922. Combined transmitting and receiving arrangements; thermionic modulating systems and heterodyne receivers.-Relates to combined transmitting and receiving sets forming a system wherein one station transmits continuous waves of a different frequency from another station, and receives by causing its own transmitted waves to heterodyne with the incoming waves from the distant station. The invention consists in using at each station two aerials, one tuned for transmission, the other tuned for reception. As shown in Fig. 2, the transmitting aerial 3 is energized from a power valve. 13 coupled with a control valve 14, the grid potential of which is varied by a key 15, when the switch 18 closes a circuit through the tone-wheel 16, or by telephony through a microphone 19. The receiving aerial 4 is tuned in eyntony with the distant transmitting station. and energy from that station combines with energy from the local aerial 3 to give beat reception in a detector linked to the inductance 10. Means are provided to prevent the local oscillations from swamping the received energy.
Patent GB-965870-A (GB)
Title: Improvements in or relating to the cleaning of melt spinning nozzles
IPC: B29C48/27
Filed: 1963-02-12
Abstract: 965,870. Cleaning melt spinning nozzles. ONDERZOEKINGSINSTITUUT RESEARCH N.V. Feb. 12, 1963 [Feb. 16, 1962], No. 5633/63. Heading B5B. Spinning nozzles employed in the melt spinning of synthetic organic thermoplastic materials, which nozzles have been treated during the spinning process with a liquid polyorganosiloxane are treated after the spinning process with a hydrocarbon having a boiling point of at least 150 C., or with a mixture of hydrocarbons having an initial boiling point of at least 150 C., and thereafter with a molten mixture of a nitrate and a nitrite of sodium and/or potassium, e.g. 45 to 55% by weight of potassium nitrate and the remainder sodium nitrite. The temperature of the molten mixture may be within the range 200 C. to 600 C. The mixture of liquid hydrocarbons may be liquid paraffin (medicinal white oil). The polyorgano siloxane may be a polymethylsiloxane having a viscosity of 50 to 1000 centistokes at 25  C. If a solid hydrocarbon is to be used in the cleaning of the spinning nozzle, it should be melted before being applied to the nozzle. In an example, the nozzle to be cleaned is first immersed in a liquid paraffin having a viscosity of 35 centistokes at 20 C. and a specific gravity of 0.87. The nozzle is then removed from the oil and immersed in a melt consisting of equal parts by weight of potassium nitrate and sodium nitrite and maintained at a temperature of 450 C. In the other example the melt used consists of equal parts by weight of sodium nitrate and sodium nitrite maintained at a temperature of 500 C. In both cases the nozzle after having been treated is cooled and subsequently rinsed with warm water to remove the salts. It is found that whereas nozzles which have been used for melt spinning polyamides can be freed from adhering polyamide, whether decomposed or not, by treatment with the melt alone, polymethylsiloxane deposits are not removed as well unless the nozzle is first treated with a hydrocarbon or mixture of hydrocarbons as specified.
Patent GB-1403181-A (GB)
Title: Making reinforcing members for cavity walls
IPC: E04B1/41
Filed: 1974-02-07
Abstract: 1403181 Cavity walls BEKAERT SA NV 7 Feb 1974 [8 Feb 1973] 05719/74 Heading E1B [Also in Division B3] A reinforcing member 1 for a masonry cavity wall is made by welding together a plurality of wires of circular cross section lying in one plane, so as to form a wire girder and subsequently flattening the wire girder in a rolling mill to form the wires into strips. In one embodiment, the reinforcing member 1 comprises two parallel galvanized steel strips 2 welded to transverse strips 4. The strips 2 are provided with notches or pressed out tongues to facilitate adhesion of the member 1 in the joint or mortar layer of the wall and the transverse strips 4 are provided with corrugations 5 to prevent condensation reaching the inner wall. The transverse strips 4 may be replaced by a zigzag strip (3) (Fig. 1, not shown). Suitable dimensions for the strip cross sections are given.
Patent GB-324267-A (GB)
Title: Method of fixing handles to agricultural implements and tools
IPC: B25G3/02
Filed: 1929-02-21
Abstract: 324,267. Wolf, A., Wolf, G., Wolf, 0., and Wolf Eisenwarenfabrik Ges., A. Feb. 21, 1929. Fixing by self-grip sockets.-Handles of rakes or other agricultural implements b are fixed by means of a conical socket a without longitudinal slit and solidly welded to its front end with the tool. The taper end of the handle c is driven into the socket and held therein by friction without additional securing devices. The socket may be of different tapers A<1>, A<11>, A<111> varying with the size of implement from 6‹ to 10‹.
Patent GB-733669-A (GB)
Title: Improvements relating to rainwater pipes
Inventor: WELLINGS JACK ALFRED
IPC: B21D39/20
Filed: 1953-03-02
Abstract: 733,669. Making rainwater pipes; tube expanders, stamping. HIGH DUTY ALLOYS, Ltd. Feb. 8, 1954 [March 2, 1953], No. 5743/53. Classes 83 (2) and 83 (4). In making a rainwater pipe from a tubular metal extrusion 1 the end thereof is expanded by a dollying tool 3 cooperating with a split or divided die 2 to form an integral socket la and a lug for holding the pipe to a wall is welded to or cast on the socket. Jointing beads 1b are formed in the socket by expanding the extrusion by internal fluid pressure, deformation of rubber or by mechanical tooling into circumferential grooves 2a in the die. According to the Provisional Specification the extrusion may be expanded by rolling or pressing.
Patent GB-558353-A (GB)
Title: Improvements relating to boiler and the like furnaces
IPC: F23M5/00
Filed: 1942-04-29
Abstract: 558,353. Furnacebaffles. HOLLAND, L. G. April 29, 1942, No. 5756. [Class 51 (i)] A Lancashire, Economic, or Cornish boiler furnace flue is provided behind the combustion chamber with a depending baffle 11 of built-up firebrick supported by an arch member 9 made in moulded firebrick with or without a metal reinforcement. The ends of the member 9 rest on the walls of the flue, the passage 10 below it having a cross-sectional area approximately equal to the cross-sectional area above' the firebridge 7 and about one-eighth the area of the grate 5.