baber/WOPTO huggingface dataset:
Patent GB-1148524-A (GB)
Title: Improvements in disc brakes
Inventor: RATH HEINRICH BERNHARD
IPC: F16D55/226
Filed: 1965-05-06
Abstract: 1,148,524. Spot-type disc brakes. GIRLING Ltd. 26 April, 1966 [6 May, 1965], No. 19082/65. Heading F2E. In a spot-type disc brake of the type in which an hydraulic actuator located in a stationary member 10 adjacent one side of a brake disc 11 applies a first friction pad assembly 21, 22 directly against one disc side and moves a floating yoke 14 parallel to the disc axis to apply a second friction pad assembly 25, 26 to the other side of the disc, the yoke is slidably guided on spaced parallel flat surfaces 16 of substantial radial depth on the stationary member and is urged by a spring 36 against shoulders 17 at the radial innermost ends of said surfaces. The guide surfaces 16 are formed in part by the outer sides of arms 19, 20 which extend forwardly from the stationary member over the disc periphery to or adjacent the face of the disc remote from the stationary member, Fig. 2 (not shown). The backing plate 22 of the directlyactuated pad assembly has part-circular ends centred on the axis of the actuator and is guided on corresponding part-circular surfaces 23 on the inner sides of the arms and on further similar surfaces 24 on the stationary member, the arrangement permitting radially outwards removal of the pad assembly after locking pins 31, 32, extending between the yoke and stationary member, have been removed and the assembly has been rotated through 90 degrees. On brake application, the drag force on the first pad assembly is taken by one of the arms 19 or 20 whilst the drag force on the second, indirectlyactuated, pad assembly is transmitted through the yoke to the other arm. The hydraulic actuator may comprise two opposed pistons 28, 29 working in a cylinder, which is either formed by a bore in the stationary member or by a separate member rigidly fixed in an opening in the stationary member. In a modification, Fig. 6 (not shown), two pistons are concentrically arranged in a bore, one working within the other. The spring urging the yoke against the shoulders of the stationary member is of cruciform shape, Fig. 2 (not shown), one pair of the arms of the spring engaging under the locking pins, and each of the other pair of arms engaging the stationary member and yoke respectively.
Patent GB-345897-A (GB)
Title: Improvements in the process of shaping surfaces by grinding, and apparatus therefor
IPC: B24B13/00
Filed: 1930-06-23
Abstract: 345,897. Grinding lenses and curved surfaces. MOORE, J. A., 20, Red Lion Street, London. June 23, 1930, No. 19104. [Class 60.] In grinding the surfaces of onepiece bifocal lenses or other work pieces of compound configuration, the work C is mounted on a rotary holder B and is shaped by a grinding wheel A on a spindle mounted at right angles to the work axis. The wheel may be shaped to produce convex or concave surfaces with concentric portions of different curvatures; or, as shown, the surfaces formed may be partly flat and partly curved.
Patent GB-530990-A (GB)
Title: Improvements relating to maximum speed indicators
IPC: G01P3/18
Filed: 1939-06-30
Abstract: 530,990. Speedometers. BRITISH THOMSON-HOUSTON CO., Ltd., and FREEMAN, G. A. June 30, 1939, No. 19122. [Class 106 (iii)] A disc 4 is driven from the member whose speed is to be measured and carries centrifugal members 6. The latter through gears 7 and 8 move a pointer over a scale also carried on disc 4 by members 16. The pointer is connected to a ratchet wheel 13 provided with cooperating pawls which cause the pointer to function as a maximum indicator. The pawls are raised manually to zeroize the instrument. A cover 21 is provided to enclose the instrument while it is rotating.
Patent GB-533010-A (GB)
Title: Improvements in or relating to beam signalling systems
IPC: H04B10/11
Filed: 1939-06-30
Abstract: 533,010. Light beam signalling systems. IGRANIC ELECTRIC CO., Ltd., and RANDALL, C. E. June 30, 1939, No. 19126. [Class 40 (iii)] Relates to systems for transmitting and receiving signals over a beam of light comprising a transmitter generating a light beam modulated in accordance with the signals, and a receiver having an optical device for converging the beam to a focus, a screen having a restricted opening at the focus and a light-sensitive cell such as a photo-electric cell behind the screen influenced by the light coming through the opening in the screen to produce electric signals which are converted into visible or audible signals. According to the invention, the opening in the screen is adjustable in size and a viewing device is provided therefor. The transmitter shown in Fig. 2 comprises a source of light such as an electric arc 1, means for converging the light through an opening 10 in a screen 12, and a lens 11 for projecting the light in a parallel beam 13. The carbons of the arc may be "loaded" with cerium, magnesium, calcium or strontium salts to produce light frequencies to which the electric cell is most responsive. Alternatively, the light source may be a high efficiency mercury vapour lamp or other gas discharge lamp. The intensity of the light may be modulated by supplying an arc 1, Fig. 4, with energizing current from a source 8 through a variable resistance 7 and a choke 6, and with microphone current through a transformer 4 and a condenser 5. The arc may be modulated directly by the microphone current ; or, preferably, the arc may be made to oscillate at radio frequencies by means of an inductance 25 and a condenser 26 across the arc, and the microphone current may be superimposed on the radio frequency through high-frequency chokes 24, 24. This radiofrequency modulation enables higher amplification to be obtained at the receiver, the current from the cell being then amplified first by a radio frequency amplifier and detector unit followed by an audiofrequency amplifier feeding headphones or a loud speaker. The receiver, Fig. 3, comprises a lens 14 for converting the incoming parallel beam 13 into a beam converging to a focus at a small opening in a screen 15 behind which is the cell 16. The screen 15 may be adjustable and may have several openings of various sizes which can be brought at will to the focus. An inclined mirror 20 makes the screen 15 visible through a side window 21, thus enabling the adjustment of the screen. An iris diaphragm 19 controls the amount of light allowed to the cell, which is connected to an amplifier 22 for operating headphones 23. The beam may be transmitted from and received at hidden places by means of mirrors or periscopes or by directing the transmitter beam to a captive balloon visible at the receiver.
Patent GB-791214-A (GB)
Title: Improvements in and relating to the control of electric winder equipment
Inventor: PROWSE DONALD WINDSOR
IPC: B66B1/28
Filed: 1955-07-01
Abstract: 791,214. Control of A.C. motors; controllers. BRITISH THOMSON-HOUSTON CO. June 26, 1956 [July 1, 1955], No. 19157/55. Class 38 (3). An A.C. motor driving a winder with an unbalanced load is controlled by means of a manually-adjustable lever provided with a guide so that lever movement along a straight slot in opposite directions afford power and dynamic braking operation respectively, transverse movement of the lever into another slot serving for the control of power lowering operation of the winder whilst a mechanical brake is still applied. As shown, a controller for regulating the power and dynamic braking operation of the motor, and for adjusting the value of rotor resistance, is rotated in a direction and at a rate dependent upon the direction and magnitude of excitation of a coil 11. When the control lever is moved in a direction to raise the conveyance, relay PR1 is energized and contacts PR1<SP>1</SP> are closed so that coil 11 is energized through contacts PL2<SP>1</SP>. Movement of the lever to lower the load energizes the relays PL1, PL2, since the change-over contacts COS are now closed. The contacts PL1<SP>1</SP> are closed but contacts PL2<SP>1</SP> are open, whereby no voltage is applied to the coil 11 through the contacts PL1<SP>1</SP> during the time the mechanical brakes are applied and contacts B<SP>1</SP> are open. However, contacts PL2<SP>11</SP> close, and contacts B" are closed as long as the brakes are applied, so that a voltage of opposite polarity is applied to the control winding 11 to provide dynamic braking conditions in anticipation of the mechanical brakes being released. After release of the brakes, dynamic braking is immediately available until a closed loop feedback circuit becomes effective for automatic speed regulation driving the time that the conveyance is moving. When the control lever is moved transversely for power lowering operation, contacts COS are opened whereby relay PL2 is no longer energized. Contacts PL2<SP>11</SP> open to cancel the dynamic braking condition, and contacts PL2<SP>1</SP> remain closed to allow the conveyance to be driven before the brakes are released. Thus, close control of the initial lowering motion is provided by the simultaneous application of both a driving motor torque and a proportionate braking torque. Specifications 791,076 and 791,158 are referred to.
Patent GB-498603-A (GB)
Title: Cylinder construction of liquid cooled internal combustion engines
IPC: F02F1/42
Filed: 1937-07-09
Abstract: 498,603. Cylinders. RUBBRA, A. A. July 9,1937, No. 19162. [Class 7 (ii)] In a cylinder block in which wet liners A<1> are attached to a forged, or die-cast, head member A, the joint between this member and the water jacket c is located above the tops of the combustion chambers B so that machining of their outer side walls is facilitated before assembly. The liners are held by clamps A <3> as described in Specification 491,545. Water passes by passage D to the head jacket E which is closed by a plate F, held in place by studs F<1> and sleeves round the valve guides. Specifications 473,435 and 498,489 are referred to in the Provisional Specification.
Patent GB-194231-A (GB)
Title: Improvements in or relating to motors for reciprocating conveyors
IPC: B65G27/14
Filed: 1922-07-13
Abstract: 194,231. Finlay, R. P. July 13, 1922. Fluid-actuated gears; combined fluid-actuated and mechanical gears.-An improvement in the reciprocating-conveyer motor described in Specification 171,297 wherein the piston is driven down bv pressure and returned by the. load, consists in bringing the exhaust port 15 to the side. of the cylinder so that the cushioned fluid therein, on the reversal of the valve 3, imparts a supplementary impulse to the piston. The fluid supply passes through the centre 4 of the valve, and the exhaust through ports 15, 16 controlled by the valve which is reversed on the piston passing one of the ports 6 - - 10 controlled by the spiralported valve 12, the handle 13 of which has a spring locking-pin 21. The main valve is driven up by impact or cushioned fluid.
Patent GB-498525-A (GB)
Title: Improved fluxes and flux-coated electrodes for electric welding
IPC: B23K35/36
Filed: 1937-07-13
Abstract: For use in connection with electric welding electrodes of steel having a high chromium content, a flux comprises ferrotitanium, of carbon content below 5 per cent, and calcium carbonate in proportions of at least 10 per cent each, together with from 5-25 per cent of asbestos, white or blue, either powdered or spun as a wrapping for the electrode.  The electrode may be stainless steel having 18 per cent chromium and 8 per cent nickel with/without additions of titanium, niobium, silicon molybdenum or tungsten, or may be stainless iron containing up to 12 per cent chromium, or may be "heat resisting" steel.  The current used may be direct or alternating. The flux may also contain sodium silicate and/or aluminium silicate such as clay and/or felspar.  A binder such as liquid sodium silicate or "Siliconester" may be used.  Titanium dioxide may also be added. A sample flux contains (within plus or minus 5 per cent of each constituent) felspar 15 parts, calcium carbonate 20 parts, clay 5 parts, solid sodium silicate 5 parts, ferrotitanium 13 parts, titanium dioxide 10 parts, asbestos (white, for example, in powder) 10 parts.  Liquid sodium silicate may be added.  With a wire of ,160 inch diameter, the finished electrode may be ,222 inch diameter.
Patent GB-724153-A (GB)
Title: Reactivation of spent solid adsorbent material
IPC: C01B31/08
Filed: 1952-07-31
Abstract: <PICT:0724153/III/1> Spent adsorbent such as activated carbon or silica gel which has been used in an adsorption/desorption system and which contains desorbable and non-desorbable hydrocarbon contaminants, is reactivated by passing the adsorbent successively through a desorption section where it meets hot ascending gases to strip off desorbable contaminants, a heating section where it flows countercurrently to, and becomes heated by, hot combustion gases which partially oxidize non-desorbable contaminants, and finally through an oxidizing section where it is contacted with pure steam to effect controlled oxidation of the contaminants.  As shown in the drawing, char enters the reactivator from pipe 9 into a desorption section formed here by three superposed fluidized beds connected by downcomers 3.  The heated char is withdrawn at 4 to meet hot combustion gas which passes up line 5, entraining and mixing with the char, to enter a cone 6 and the superposed heating stage.  The heated char passes by down-comer 3 to the oxidation stage at the foot of the column where it meets steam entering at 7.  The char is withdrawn at 10 and returned to the adsorption system, suitably to the desorber heater.  Steam from the oxidizing section may be passed to the heating section by pipe 8 to join the incoming combustion gas/char mixture or through holes 13 in the cone 6.  The process is applicable also to gravitating bed systems.  If desired the heat of the char leaving the oxidizing section may be employed to heat the water and steam required for the oxidizing section.  The hot combustion gas employed, obtained for example by burning natural gas with air, and containing substantially no free oxygen, may be mixed with vapours from one or more of the desorption stages to cool the combustion gas. Adsorbent side-stream may also be withdrawn from the desorption section and returned directly to the adsorber/desorber system thus by-passing the remainder of the reactivator.  Supplemental temperature control may be effected by the introduction of hot combustion gas direct to each heating stage, by indirect heating or by cooling with liquid water. Specification 686,294 is referred to.
Patent GB-333999-A (GB)
Title: Improvements in or relating to labelling machines
IPC: B65C9/46
Filed: 1929-06-25
Abstract: 333,999. Garrington, C. H., Carter, T., and Nicholson & Sons, Ltd. June 25, 1929. Printing on bottles.-A labelling-machine is provided with date-stamping devices comprising a removable printing element consisting of type and an ink ribbon mounted upon a pressure member which applies the label. In the form shown, the labels are applied to bottles, and are held in position by the member provided with the printing element while being wiped. The labels, contained in a pile 12, Fig. 1, are removed by a pair of adhesive pickers 16 and applied to a bottle &c. 10 supported on a rest 11. The label is held on to the bottle during the operation of wipers 17 by pads 22 carried on a member 20 pivoted to the main frame 21. The printing device consists of type 33, Fig. 3, carried in a member 23 pivoted at 24 to the member 20, and an ink ribbon 30 intermittently fed from a spool 26 to a spool 25 by a pawl 28 and ratchet 27.
Patent GB-1517065-A (GB)
Title: Electrolytic flotation apparatus
IPC: B03D1/14
Filed: 1976-05-12
Abstract: 1517065 Purifying liquids by flotation SIMONHARTLEY Ltd 20 April 1977 [12 May 1976] 19515/76 Heading C1C Apparatus for treating a liquid capable of acting as an electrolyte (e.g. waste water) containing suspended matter, comprises a tank fitted with electrodes in the base to generate gas bubbles electrolytically, an inlet for the liquid, an outlet for purified liquid and means for removing thickened material from the liquid surface, characterized in that the means for supplying the liquid to the tank includes a high pressure section and a low pressure section separated by a pressure-reducing valve located immediately before the connection to the tank, means for pumping the liquid through the high pressure section and means for bleeding air into the high pressure section.
Patent GB-1044852-A (GB)
Title: Spring barrel arrangements for watches
Inventor: WEISSBACH SIEGFRIED
IPC: G04B1/16
Filed: 1965-05-10
Abstract: 1,044,852. Bearings. GLASHœTTTER UHRENBETRIEBE VEB. May 10, 1965, No. 19534/65. Heading F2A. [Also in Division G3] In a spring barrel arrangement fo a self-winding watch, a ratchetwheel 7 is positioned adjacent an open side of the barrel 6. The barrel is rotatably mounted on two bearing surfaces 5 on the barrel shaft 4 and a third bearing surface 5 on this shaft rotatably mounts the ratchet-wheel. The ends of the shaft are a transition fit in support plates 1, 2 from which the shaft is withdrawable on removing a securing plate 8. Plate 2 is provided with supporting members 3 in the form of jewels against which the ratchet-wheel can bear and which prevent rocking of the wheel.
Patent GB-827537-A (GB)
Title: Process for the polymerisation of ethylene
IPC: C08F10/02
Filed: 1956-06-25
Abstract: Ethylene is polymerized in a hydrocarbon fraction as reaction medium and with a catalyst comprising an aluminium alkyl compound and a compound of a Group IVa, Va or VIa metal, characterized in that the content of liquid constituents which boil at temperatures higher than the medium is maintained at less than 1% of the medium.  The process may be batchwise or continuous and the use of purified aliphatic or hydroaromatic hydrocarbon fractions is specified.  In an example a C7 to C9 fraction of boiling range 70-150 DEG  C. is used and constituents boiling above 150 DEG  C. are removed therefrom by distillation.  The preferred process of the invention comprises the withdrawal of part of the reaction medium, the optional separation therefrom of residual catalyst (e.g. with nitric acid), followed by distillation, and then the recycling of the treated medium, preferably after a refining operation with concentrated sulphuric acid and water or alkali.
Patent GB-1078527-A (GB)
Title: Process for the preparation of chlorofluoromethanes
IPC: C07C17/10
Filed: 1964-05-11
Abstract: Chlorofluoromethanes are made by reacting chlorine, methane and hydrogen fluoride in at least one catalysis zone at 200-500 DEG  C. at super-atmospheric pressure, passing the reaction products while still at superatmospheric pressure to a distillation column and separating the products by distillation.  Preferred operating pressures are in the range 2-15 kg./cm.2.  It is preferred to recycle a mixture of chlorinated, fluorinated and/or chlorofluorinated hydrocarbon intermediates recovered from the foot of the distillation column.  Conventional halogenation catalysts are used, e.g. active carbon, fluorinated alumina. Examples relate to the preparation of reaction mixtures containing CF3Cl, CF2Cl2, CFCl3 and CCl4.
Patent GB-883453-A (GB)
Title: Motion picture viewer
IPC: G02B27/06
Filed: 1960-06-02
Abstract: 883,453. Toothed gearing. KAPILOW, M. June 2, 1960 [Nov. 16, 1959], No. 19567/60. Class 80 (1). [Also in Group XX] A device for viewing film strip movable between two reels comprises a casing and an eye-piece and means for driving either reel to take-up the film by selective engagement of a pinion on each reel holder with a floating intermediate pinion coupled to a driving pinion. As shown in Fig. 3, 34 is the normal take-up reel, a gear 46 on the spindle 42 therefor meshing with a selectively positionable " floating " gear 66 rotatable by means of an external crank which rotates pinion gear 80 (Fig. 5) meshing with gear teeth in a recessed portion of the gear 66. The driving moment of pinion 80 on gear 66 holds spindle 72 of the latter against one end of an arcuate slot 74. When the sense of rotation of the driving crank is reversed, the rotation imparted to gear 66, which is resiliently clamped by leaf spring 76, causes the spindle 72 of gear 66 to traverse the slot whereby continued rotation of the crank will bring the pinion gear 82 into driving engagement with the gear 44 to rewind the film with a velocity ratio of 4: 1 compared with the take-up.
Patent GB-574886-A (GB)
Title: Improvements in tracks for self-laying track vehicles
IPC: B62D55/205
Filed: 1943-11-23
Abstract: 574,886. Vehicle endless tracks. FORD MOTOR CO., Ltd. Nov. 23, 1943, No. 19571. Convention date, Jan. 28. [Class 79 (i)] [Also in Group XXXII] In a track for self-laying track vehicles comprising a plurality of links each having an upper relatively flat surface and a lower tread surface and having hinge eyes at opposite ends thereof for interengaging in alignment with the hinge eyes of adjacent links, a separate bush or sleeve is resiliently mounted in each of the eyes, interlocking means are associated with the ends of the sleeves, and means are provided for drawing the sleeves axially into locking engagement with one another. As shown, each track link 10 consists of a steel casting having two hinge eyes 11 extending from one side and three hinge eyes 12 from the other side, each eye containing a bushing comprising a steel sleeve 15, 18 or 19 having two or three axially-spaced rubber rings 16 vulcanized thereon which are compressed when inserted in the eye. The ends of each sleeve are radially serrated at 17. After the sleeves on the adjacent ends of two links have been brought into alignment, a bolt 20 is inserted having a serrated head 21 and a serrated washer 22 at the other end so that, on tightening the nut 23, the adjacent serrated parts engage and the sleeves form a solid cylindrical assembly. Each link is formed with a tread while the top face forms a flat surface for the bogie wheels to roll upon, guide lugs 26 projecting upwardly from each alternate link maintaining the track in alignment with the bogie wheels. For driving the track, a slot 24 of circular crosssection is provided in each link for engagement by a sprocket tooth 25.
Patent GB-629342-A (GB)
Title: Bermuda type metal shingle
IPC: E04D3/30
Filed: 1947-07-22
Abstract: 629,342. Metal shingles. SPERRY, C. F. July 22, 1947, No. 19654. [Classes 20(iv) and 87(i)]  A roof construction has a series of taper blocks 11, 12, 13 secured to a rafter 10 and presenting stepped surfaces to which sheathing boards 15 are applied with edges 16 projecting beyond the downwardly facing shoulders 14 to form recesses 20. Above the sheathing boards are applied metal shingles each consisting of a length 17 reversely bent at 18 extending into the recess 20 and terminating in the portion 21 which is nailed at 22 to the sheathing board. The lower end of the shingle is bent downwardly as at 23 to cover the securing portion 21 and fasteners 22 of the shingle next below and terminates in the lower edge 24. Eave strips are provided, the upper ends being formed with a reverse bend 27 and a securing portion 25, the lower ends being formed as drips 29. When the eave strip has been applied the securing portion 21 of the lowest shingle is hammered upwardly thus draw ing the shingle tightly against the securing portion 25, this tightness being maintained when the fasteners are driven in. The bent portion 18 acts in the manner of a spring. As each succeeding course is laid tightness is maintained. At the junction of the metal shingles a strip of bonding material is used as indicated at 31. At hips and valleys in a roof plain shingles are laid on the roof to a point approaching the corner, corner shingles being then applied and the overlapping portions being secured together by a bonding material. These corner shingles will be tightened upwardly as in the case of the plain shingles. The ridge cap is slipped over the sheathing boards before the lower ends of the cap are bent upwardly and inwardly under the boards to hold the cap in position.