baber/WOPTO huggingface dataset:
Patent GB-316190-A (GB)
Title: Improvements in panoramic cameras
IPC: G03B37/02
Filed: 1929-07-23
Abstract: 316,190. Seidl, R. B., and Elster, J. July 24, 1928, [Convention date]. Panoramic apparatus. - A clockwork-driven panoramic camera rotates about a spindle passing through the camera body and situated directly behind the sensitive surface. As shown in Fig. 1, the film is unwound from the roller 7, passes ever the roller 8 through a slot in the rear of the camera proper 3 to the take-up roller 6, which is driven through gear 5 by a spring. A toothed wheel 9 secured to the roller 8 meshes with a roothed wheel 10 mounted on the tubular spindle 11 placed directly behind the film 4. The spindle 11 is fixed to a mandrel 12 by a screw, and carries at its top a toothed wheel 14 which turns an indicator 16 showing the length of exposed film. The brake 17 acting through gearing 18 controls the unwinding of the film from the roller 7.
Patent GB-1161792-A (GB)
Title: Method and Apparatus for Determining the Value of a Filtration Characteristic and Other Properties of a Suspension.
Inventor: BASKERVILLE RALPH CHRISTOPHER
IPC: G01N31/22
Filed: 1966-05-20
Abstract: 1,161,792. Determining filtration characteristics. NATIONAL RESEARCH DEVELOPMENT CORP. 13 April, 1967 [20 May, 1966], No.22681/66. Heading B1X.  A filtration characteristic of a suspension of one or more solids in a liquid or of a filter cake produced from the suspension, for example the specific resistance of the suspension to filtration, is determined by placing a sample of the suspension in contact with a porous filter member and measuring the rate at which the filtrate ,passes into the filter member. In the apparatus shown, suspension is poured into reservoir 26 and filtrate flows outwardly in filter member 22. Probe 30 is earthed while probes 31, 32 are connected to time recording device 34 in circuits which are completed when filtrate reaches one of the probes. In the apparatus of Fig. 1, (not shown), filter paper 12 is supported between upper and lower discs (11), (10). Disc (11) is transparent and has central reservoir (13) for the. suspension and a lower annular recess (15) having concentric markings which may be used for visual observation of the filtrate flow.
Patent GB-797328-A (GB)
Title: Improvements in method and apparatus for hydrating dolomitic quicklimes
Inventor: ALLEN ALAN RAY
IPC: C04B2/08
Filed: 1956-07-23
Abstract: The hydration of dolomitic quicklime is effected without employing increased pressure by mixing it with a large excess of hot water and passing the mixture through an elongated hydration zone of which the forward end is cooled to 300-350 DEG  F. and the rear end is heated e.g. to 200 DEG  F.  In the illustrated apparatus (Fig. 1) lime and water are fed at constant rates to a mixer 14 which discharges into a cylindrical hydrator 24 provided with paddles 26 which propel the mixture forward.  The cylinder has a double wall 68, 69, forming a jacket divided by transverse partitions 70 into three sections 71, 72, 73.  A heat transfer liquid, preferably an oil, is circulated by pump 80 through the sections successively in the direction of motion of the lime mixture.  At the discharge end of the hydrator (Fig. 1A) the hydrated lime flows over an adjustable weir 33 through outlet 30 into a drier 40 along which it is moved in countercurrent to a stream of air.  Water vapour and dust are withdrawn from the hydrator and drier through ducts 62, 65 respectively <PICT:0797328/III/1> <PICT:0797328/III/2> by the circulation of water from tank 47 through the venturi-type ejector 53, and the withdrawn gases are further washed in the tower 49 by a water spray 48 which supplies the tank. Water is withdrawn from the tank 47 for supplying the mixer 14.
Patent GB-531935-A (GB)
Title: Improvements in and relating to electric motor control systems
IPC: H02P1/24
Filed: 1939-08-08
Abstract: 531,935. Master control of motors. BRITISH THOMSON-HOUSTON CO., Ltd. (White Elevators Pty., Ltd.). Aug. 8, 1939, No. 22877. [Class 38 (iii)] An elevator motor is speed controlled by movement of its brushes effected by a pilot motor 57, under control of a switch 41, the pilot motor 57 being controlled to operate at either of two speeds under the control of a relay G38 responsive to main motor current. The switch 41 first connects the main motor for one direction of operation or the other and then energizes a relay F36 which opera.tes to energize a contactor D24 whereby the pilot motor 57 is energized to move the brushes of the main motor in an accelerating direction. In parallel with the coil of the relay D24 and in series with the contacts G37 of the current relay G38 is the coil of a contactor E33. This contactor has contacts E25- E32 which co-operate with the contacts D21-D23 of the contactor D24 so that with D24 and E33 operated the windings of the pilot motor are energized for high-speed movement of the brushes. When the motor current exceeds a predetermined value, however, and the relay G38 opens its contacts G37 the contactor E33 is deenergized and the pilot motor is connected to operate at a reduced speed. When the switch 41 is returned to de-energize the relay F36 contacts F35 energize a contactor C20 which connects the pilot motor for high-speed return. The pilot motor may have a single speed only the current relay G38, when operating, effecting the disconnection of the pilot motor and the application of a brake. Limit switches are provided for both main and pilot motors.
Patent GB-876735-A (GB)
Title: Improved detector electrode for electrolyte injection flow measurement
IPC: G01F1/704
Filed: 1957-07-19
Abstract: 876,735. Measuring fluid velocity. YOUNG, L., and WILSON, G. July 21, 1958 [July 19, 1957], No. 22948/57. Class 69 (1). [Also in Group XXXVI] A device for use in detecting a change of conductivity of a flowing liquid comprises an elongated probe of streamline section having at least one insulated electrode exposed on its surface. As shown, a cylindrical rod 11 of insulating material is fixed to a metal section 26 by screws 27 to form a probe of overall aerofoil section, and two metal strip electrode 12, 13, are let into the surface of the rod 11 and fixed by screws 28. Fig. 2 shows the probe diametrically disposed in a pipe 17 through a threaded sleeve 18, into which a hollow plug 19 is screwed to secure the probe by pressing it axially until a resilient pad 23 at the remote end bears firmly against the wall of the pipe. Leads 14 to the electrodes 12, 13 are located in a channel 15 within the probe. Alternatively, a number of shorter probes may be'mounted to project radially into the pipe, their respective electrodes being connected in parallel. The probe may comprise a single moulded section of synthetic plastic material, and one electrode may be dispensed with if an earth return is used. To measure rate of flow of liquid, two such probes are spacedly located in the pipe, a substance which changes the conductivity of the liquid is injected into it (e.g. common salt into water) and the time taken for the liquid of changed conductivity to pass between the probes is measured.
Patent GB-1515674-A (GB)
Title: Bleaching assistant suitable for use in washing and bleaching agents and a process for its preparation
IPC: C11D3/39
Filed: 1975-05-23
Abstract: The agent exists in the form of dropto sphere-shaped particles having a diameter of from 0.01 to 2.5 mm. At least 70% of the particles should have a diameter of from 0.1 to 1 mm. They consist of from 10 to 70% by weight of an activator for per-compounds and of from 30 to 90% by weight of a sheath material. The sheath material is composed of saturated fatty acids having from 12 to 24 carbon atoms, aliphatic alcohols having from 10 to 20 carbon atoms or their polyglycol ethers having from 1 to 5 ethylene glycol ether groups and of sulphated fatty alcohols having from 8 to 18 carbon atoms or their glycol ethers having from 1 to 5 ethylene or propylene glycol ether groups. The content of sulphated compounds in the sheath material is from 5 to 25% by weight. The weight ratio of fatty acid to alcohol or its glycol ether is from 10:1 to 2:1. As a result of adding the sulphated compounds, the rate of dissolution of the bleaching aids in water is increased, and the separation risk in preparing the bleaching aids is reduced.
Patent GB-154383-A (GB)
Title: Improvements in connection with hydraulic recoil apparatus for ordnance
IPC: F41A25/16
Filed: 1919-09-19
Abstract: 154,383. Beardmore & Co., W., and Bremberg, A. Sept. 19, 1919. Recoil apparatus. - Consists in providing hydraulic recoil-apparatus with two annular spring-loaded valves D, J located in the annulus between the piston-rod A and the recoil cylinder B, the valve D being opened on recoil while the valve J is closed, and the valve J being opened during run-out while the valve D is closed. In addition, constant-leak apertures are provided between the valve D and its seat, these apertures controlling the recoil conjointly with the valve D and the run-out conjointly with the valve J. The invention is shown applied to the hydropneumatic apparatus described in Specification 130,049. During recoil, the piston A<1> moving to the right forces liquid past the valve D the seat of which has radial leak grooves. During runout, liquid can return through the leak grooves and also through ports H controlled by the valve J. The valve J opens under high pressure to permit a quick return to battery, but closes as the pressure falls to bring the gun gradually to rest.
Patent GB-1183391-A (GB)
Title: Grating Monochromators
IPC: G01J3/18
Filed: 1967-05-18
Abstract: 1,183,391. Grating monochromators. PERKIN-ELMER CORP. May 18, 1967 [May 27, 1966], No.23091/67. Heading G2J. A multipass monochromator of the Ebert type using a diffraction grating DG as the dispersive element has an additional slit IS interposed between tilted transfer mirrors TM 1 , TM 2  in the path of the first-pass dispersed radiation before return to the grating, this slit being of such a width and position as to eliminate from the first-pass radiation all radiation outside the final narrow wavelength band, whereby all first-pass ghost lines due to grating imperfections, and all radiation of wavelengths adjacent to that of the final band, one eliminated to avoid second-pass ghost lines reaching the exit slit EX. The grating may be rotated about axis GA to bring selected wavelengths to the exit slit. The additional slit IS has a half-width of less than # o F/cos i o  + cos r o  where # o  = desired monochromatic wavelength F = focal length of the Ebert mirror EM i o  = angle of incidence of the first-pass beam on the grating r o  = diffraction angle of the resulting first-pass radiation of wavelength # o  The entrance and exit slits EN, EX are arcuate in form, lying on a circle centred on the optical axis.
Patent GB-600923-A (GB)
Title: Improvements in or relating to joint constructions
IPC: F16C11/06
Filed: 1944-11-21
Abstract: 600,923. Ball joints. THOMPSON PRODUCTS, Inc. Nov. 21, 1944, No. 23120. Convention date, July 22. [Class 65 (ii)] The ball of a stud member of a ball-andsocket joint is retained in a housing by a pair of radially loaded bushing members each of which is provided with a plurality of relatively movable bearing sections of relatively hard material. The ball 3, Figs. 1 and 2, is mounted in the socket 1 by means of a pair of radially loaded resilient bushing 7 to which are attached three or more bearing plates 5, so that if wear occurs mainly in one plane, there will always be at least one wear take-up space 6 not in that plane. During assembly, the resilient bushings 7 are placed under radial load so that any wear on the bearing plates 5 is automatically taken up. The plates 5 may be made of any suitable material such as a metal, a hard-moulded plastic, or synthetic condensation product or hard rubber and may be bonded or otherwise secured to the surface of the bushing. In a modification, the plates 5 are formed by hardening the surface 10 of the bushings 7 which are then slotted to form the wear takeup spaces 6.
Patent GB-187091-A (GB)
Title: Improvements in collapsible hoods for vehicles
IPC: B60J7/12
Filed: 1921-09-01
Abstract: 187,091. Buch, M. A. Sept. 1, 1921. Hoods.-In a collapsable hood for road vehicles and comprising a main pillar on each side thereof, and an extension therefrom carrying a horizontal rail supported at its forward end by the. windscreen and formed in three sections of which the rear one is hinged to the main pillar and to the intermediate section while the forward one has a floating support from two links, one of which is hinged to both the intermediate section and the extension linkage, one only of the two links is connected to the intermediate section and the other has a toggle-joint connection with a link which extends forwardly from the rear rail section. The rear and intermediate sections L, L<2> of the horizontal rail are pivoted together at L<5> and to the main pillar B at L<4>. The front section L' is carried by a toggle-linkage N, O pivoted to it at O<2> and to the section L at N<3>, the linkage being supported by a link M pivoted at M<2> to the pillar B and at M<3> to the link N. a link P, substantially parallel to the link O, controlling the movements of the front section L<3>. A link Q, pivoted to a rearward extension of the link N, carries a rear hoop Q<4> supported from the pillar B by a link R. According to the Provisional Specification, all three sections of the horizontal rail may be connected together, the rear section having a floating connection with the main pillar.
Patent GB-598770-A (GB)
Title: Improvements in or relating to optical pyrometers or like instruments
IPC: G01K1/08
Filed: 1945-09-10
Abstract: 598,770. Pyrometers photometers. SCHOFIELD, F. H. Sept. 10, 1945, No. 23233. Drawings to Specification. [Classes 97 (i) and 97 (iii)] In an instrument for measuring the brightness of an object by comparison with that of a standard source of illumination, e.g. an optical pyrometer of the disappearing filament type, the outer surface of the optical system is protected from contamination by a cap or cover which is automatically removed on operation of the switch for the measuring lamp or a conveniently placed press button or the like.
Patent GB-445083-A (GB)
Title: Improvements in bifocal and multifocal lenses
IPC: G02C7/06
Filed: 1935-08-20
Abstract: 445,083. Spectacle lenses. POLACKOFF, E., 1275, Boscobel Avenue, Bronx, New York, U.S.A. Aug. 20, 1935, No. 23319. [Class 97 (i)] A bifocal lens comprises a main lens 5 for distance vision and an insert for near vision consisting of a front positive lens 10 and a rear negative lens 11, 'the lenses 10, 11 being coaxial and so disposed that their focal planes coincide, so that they form a telescope system. In Fig. 2, the lenses 10, 11 are mounted within a central aperture 8 in the lens 5 and are made of glass having a higher index of refraction than that of the lens 5. The lenses 10, 11 may be separated by a member 12 preferably made of glass of the same refractive index as the lens 5. In Fig. 6 the lower part of the lens 5 is ground out on both sides to accommodate the lenses 10, 11 between which extends a tongue 16 of the main lens. A trifocal lens may be made by providing two telescope systems as above within the main lens.
Patent GB-732140-A (GB)
Title: Improvements in or relating to photographic reflex printing apparatus
IPC: G03D9/00
Filed: 1952-09-18
Abstract: 732,140. Photographic reflex printing and processing apparatus. INTERNATIONAL POLAROID CORPORATION. Sept. 18, 1952 [Oct. 17, 1951], No. 23451/52. Class 98 (2). A box-like structure includes a support for material to be copied, means for pressing a photo-sensitive sheet into contact with the material and a pair of pressure-applying members between which the photosensitive sheet and a second sheet may be advanced in superposition whereby, when using sheets provided with processing composition and a nuclei-containing receptive surface as of Specification 684,592, the processing composition may be spread between the sheets and a positive copy of the material may be obtained directly by image transfer. Among various alternative arrangements the box-like structure may have an easel on its base, and a pivoted cover with a spring-operated holding device so that copy material may be pressed between the easel and the device for exposure when the cover is in operative position, the pressure being actuated or de-actuated if desired by a control device. The pressure-applying members for processing may be rollers mounted on the base or the cover adjacent to the easel. A source of illumination responsive to the pressure movement of the easel may be provided. As shown, the base 20 and cover 22 in light-tight position contain.easel 44 urged upwardly by leaf-springs 52 and placed beneath a gas or liquid filled transparent plastic bag 70 with pressure face 71 which is held in a support 78 of a frame 74 attached to the side-walls 30 of the cover 22. In use the easel 44 is lowered by means of guide tracks 154 and crank portion 150 of a shaft 140 engaged therewith, the shaft being operated by an external handle 156 (Fig. 2, not shown), material to be copied and the sensitive portion of a film package are placed on the easel and the image-receiving portion of the package is placed in a compartment 99 beneath the easel. The easel is then raised by use of the handles and this may cause illumination of means 72 consisting of a pair of fluorescent tubes 276 by action of lug 326 of the support 78 on a pin 328 of switch 290 which in turn operates starter switch 320 of a circuit of Fig. 13 (not shown). A timer may terminate illumination, after which the easel 44 is again lowered and a leader strip of the two portions of the film package and the package are drawn between pressure rollers 92, 96, whereby processing composition from a rupturable pad of the package is spread between the two portions and processing effected. Modifications as for using rolls of sheet materials instead of the film package, for dealing with oversize copy material and with the pages of a book are described.
Patent GB-336334-A (GB)
Title: Improvements in cane and wickerwork baskets
IPC: B27J1/02
Filed: 1929-07-31
Abstract: 336,334. Lindon, J. July 31, 1929. Baskets.-An apparatus for making cane and wickerwork baskets comprises a baseboard 1, Fig. 1, drilled to taket the vertical studs 7 and a frame consisting of diagonal members 3 also drilled to take vertical studs and supported on corner pillars 2 above the baseboard. All the vertical studs pass through the bottom 4 of the basket which may be of wicker or plywood, but, in rectangular baskets, only the vertical studs near the corners pass through the diagonal members 3 as well. Various sizes of basket can be made on the apparatus which can be turned about a pivot 5 whilst the sides 10 are being woven. The parts of the vertical studs below the bottom of the basket are finally worked in and form a border round the sides and below the bottom. For circular baskets, cross members drilled to take vertical studs are fitted between the members 3. The carrier studs for rectangular baskets may be held by tubes 15, Fig. 5, adjustably attached by pin joints to four cross arms 12 adjustable on a column 13 which is temporarily bolted to the bottom 4 of the basket through bottom strengthening battens 18.
Patent GB-1442073-A (GB)
Title: Digger tooth
IPC: E02F9/28
Filed: 1974-05-28
Abstract: 1442073 Excavator teeth WESTERN ROCK BIT CO Ltd 28 May 1974 [29 May 1973] 23512/74 Heading E1F The transverse concavity of the upper surface and the transverse convexity of the lower surface of the digging portion of a digger tooth are such that the outer side edges of the digging portion are thicker than the central region of said portion so that, during use of the tooth, the tooth wears to enable the front ends of the side edges to precut a portion of material on each side of the material being freed by the central portion of the front digging edge of the tooth. Preferably the side edges are parallel and the profile of the lower surface varies relative to the constant profile of the upper surface so that lengthwise of the digging portion the thickness of the central portions of lateral sections of the digging portion of the tooth increase at a rate approximately 2.5 times the thickness of the leading central edge of the tooth per inch of length of the digging portion of the tooth. U.S. Specification 3665623 and Canadian Specification 890315 are referred to.
Patent GB-240187-A (GB)
Title: Improvements in waterproof foot-wear
IPC: A43B7/12
Filed: 1925-09-21
Abstract: 240,187. Blumenfeld, J. Sept. 20, 1924, [Convention date]. Connecting uppers to insoles and soles. - In a shoe which consists entirely of waterproof material, a waterproof strip 3 of rubber or other impervious material is secured between a welt 5, Fig. 4, and an upper 1 to an insole 2 by a seam 6. The edges held together by the seam are coated with an adhesive impervious to water, preferably rubber dissolved in carbon bisulphide. After the parts are sewn together, all the edges and the surface of the welt are again coated with the adhesive. A filler 7 is added and a sole 4 fixed in position by a double seam 8. The strip 3 is then turned down over the sole and fixed with adhesive or in any other manner. In a modification, Fig. 5, in which a seam passes right through the insole, upper, strip 3, and sole, the parts to be connected are coated with adhesive before being sewn and the strip 3 is turned down over the sole and fastened after the shoe has been stitched.
Patent GB-1389305-A (GB)
Title: Energization circuit for deflection coil of crt
IPC: G09G1/04
Filed: 1972-05-19
Abstract: 1389305 Cathode-ray tube circuits WESTERN ELECTRIC CO Inc 19 May 1972 [20 Aug 1971] 23582/72 Heading H4T In an electromagnetically deflected cathoderay tube (particularly, a flat-faced tube), a linear relationship between spot movement and deflection current is achieved by employing a deflection current of staircase waveform the steps of which are of constant magnitude but the intervals between which are controlled in a non-uniform manner to produce the required linearity. Fig. 3, shows such a waveform in which, at the sweep centre (corresponding to the screen centre where non-linearity is a minimum), the steps occur at intervals #t whereas, at other positions corresponding to times t 2 , t 5 , t 9 , t 18 , t 22  and t 25  no steps are produced.  The waveform is produced by a digitally controlled current source 18 (Fig. 2), fed with the output of a counter 17 which counts clock pulses supplied via a gate 16 from source 15, gate 16 being rendered non-conducting at the times t 2 , t 5 ...t 25  by an output via OR gate 22 from a plurality of 21-1...21-N which respond, respectively, to the count outputs of a second counter 20 (also counting the clock pulses), which correspond to such intervals. The OR gate 22 may comprise a disabling input of gate 16 and the latter may be omitted if counter 17 has an inhibiting input terminal. Each gate 21-1...21-N may comprise a plurality of exclusive OR gates connected to respective stages of counter 20 and the outputs of which supply an AND gate, wired inputs to the exclusive OR gates determining the counter output to be recognized. Alternatively, a single gate having provision for changing the counter output to be recognized may be employed.