baber/WOPTO huggingface dataset:
Patent GB-354894-A (GB)
Title: Improvements in or relating to windows, ventilators and the like for sectional and other buildings and structures
IPC: E05D15/24
Filed: 1930-05-29
Abstract: 354,894. Glasshouses; windows. FOULDS, W., 104, Melton Road, Thurmaston, near Leicester. May 29, 1930, No. 16601. [Classes 20 (i) and 20 (iii).] Poultry houses, greenhouses, aviaries, pavilions or the like are provided with windows adapted to be opened from a vertical position by an up-anddown movement along a continuous path to a position within the structure, so that the building may be opened wholly or in part thereby. The window may comprise three sections 1 hinged together and adapted to slide on trunnions in channel guides 2 extending into the roof. One or more of the sections may have handles and fastenings or holding devices such as a chain 12 and hooks 14 or bolts or the like for suitable opened positions. The hinge pins between the pairs of sections may be detachable to allow removal of the sections. Gaps may be formed in the runway to allow the trunnions to swing through and the sections to open as a fanlight. Weather shields mounted on blocks may be provided for the edges of the guides and the trunnions may be adapted to rest against these when the sashes are opened as a fanlight. The hinged joints of the sashes are rabbeted and bevelled and may be faced with metal to shed water. The windows may open by sliding into a space beneath the floor and chain cable or other operating gear may be provided. The glass or other transparent material is preferably inserted in grooves in the sashes and supported by rubber covered studs 30.
Patent GB-658720-A (GB)
Title: Combined holder and stand for note-books and the like
IPC: B42D5/00
Filed: 1949-06-22
Abstract: 658,720. Bookrests. DILNOT, H. S. June 22, 1949, No. 16603. [Class 52 (iii)] A combined holder and stand for a notebook or the like comprises a pair of flaps 1, 2 hinged together at their upper edges, their lower edges being joined by two plates 6, 7 hinged to the flaps and to each other so as to form a distance piece foldable between the flaps when they are closed. The ends of the wire 5 forming part of the upper hinge are bent to form hooks 17 to engage the notebook.
Patent GB-1453362-A (GB)
Title: Analogue stores
IPC: H03G1/00
Filed: 1974-04-16
Abstract: 1453362 Electric analogue calculating FERRANTI Ltd 10 April 1975 [16 April 1974] 16608/74 Heading G4G An electric analogue circuit for producing at 21 an A.C. signal of amplitude dependent on a D.C. voltage applied at 24 comprises a bridge circuit A, B, C, D, having across points A, C an A.C. source 16 and across points B, D a high gain, negative feedback amplifier 22. Arm CD is an f.e.t. 15 having its gate connected via a capacitor to the mid-point 25 of resistive arm BC. With no voltage at 24 the voltage at 21 will also be zero by virtue of a self balancing action. With a D.C. voltage at 24 the amplifier 22 produces an output voltage to restore the balance causing an A.C. output signal at 21 whose amplitude and phase are determined by the D.C. input signal. This condition is maintained until a new D.C. signal is applied. In Fig. 3 (not shown), the D.C. voltage is applied via an operational amplifier (43) for which capacitor 26 acts as a negative feed back path, the inverting input of (43) being connected to 25. Figs. 2 and 4 (not shown) illustrate respectively combinations of the devices of Figs. 1 and 3, some components being shared.
Patent GB-1043892-A (GB)
Title: A semi-conductor device
IPC: H01L23/488
Filed: 1963-04-26
Abstract: 1,043,892. Semi-conductor devices. SIEMENS-SCHUCKERTWERKE A.G. April 26, 1963 [April 28, 1962], No. 16615/63. Heading H1K. A semi-conductor device comprises a sealed housing containing a stem member with headpiece at one end which is urged into non-bonded contact relationship with the semi-conductor body, an auxiliary connecting member being located between the body and the head-piece so that it contacts a peripheral portion on the head-piece which is yieldable so as to absorb dimensional changes due to thermal expansion. In the embodiment, which shows a semiconductor device sealed in copper cup member 1, the semi-conductor member 7 is lodged between silver plate layers 8, 8a. Saddle-shaped sheet metal spring 26 urges insulator member 21 against the periphery of head-piece 12 on electrode stem 11 to press auxiliary contact member 9 against the semi-conductor. A recess 10 is provided in member 9 so that movement of member 9 relative to stem 11 is possible due to yielding of head-piece 12. In other examples, the recess is provided in head-piece 12 or alternatively, by spacing rings, and head-piece 12 may consist of a corrugated disc.
Patent GB-1433242-A (GB)
Title: Microspheres
IPC: C04B14/02
Filed: 1973-04-06
Abstract: 1433242 Production of microspheres E I DU PONT DE NEMOURS & CO 6 April 1973 [7 April 1972] 16754/73 Headings C1A and C1N [Also in Division C3] A method of producing substantially uniformsized microspheres comprises (a) forming a sol of substantially uniform-sized inorganic colloidal particles in a polar liquid, the colloidal particles having a hydrocylated surface and being insoluble in but dispersible in the polar liquid and being isodimensional or rod-shaped with at least two dimensions in the range 5-500 millimicrons and the third in the range 5-1000 millimicrons; (b) forming a homogeneous solution of the sol with a polymerizable organic material comprising formaldehyde and either urea or melamine; and (c) initiating polymerization of the organic material to cause concentration of the organic material and colloidal particles into microspheres having an average diameter by number of from 0À5-20 microns. The microspheres can then be (d) washed and dried; (e) heated to burn off the organic material without melting the inorganic colloidal particles to form substantially uniformsized porous microspheres and (f) sintered at an elevated temperature sufficient to reduce their surfaces area to a value at least 10% less than the surface area of the colloical particles. Examples are given in which sols of silica, alumina, titania, vynicinia, ferric oxide and antimony pentoxide are used in water as the polar liquid and with formaldehyde and urea or melamine as the polymerizable organic material. The polymerization is initiated by reducing the pH of the solution to about 2 and agitation prevents aggregation of the microspheres during their formation which can contain 10-90 by wt. of inorganic component depending on the amount of polymer used. Burning off of the polymer is carried out at about 500 C. and sintering takes place at temperatures near to but below the m.p. of the inorganic material in order to retain a high surface area in the porous microspheres.
Patent GB-1040742-A (GB)
Title: Improvements in or relating to cutting apparatus
Inventor: MASON JAMES ARTHUR
IPC: A24C5/47
Filed: 1962-05-02
Abstract: 1,040,742. Cutting-apparatus. MOLINS ORGANISATION Ltd. May 1, 1963 [May 2, 1962], No. 16871/62. Heading B4B. [Also in Division A2] Apparatus for cutting a web of material such as cork-tipping material 2 for cigarettes comprises cutting knives 4, mounted on a rotating shaft 5 parallel to the axis of rotation of the shaft, which coact with counter surfaces 3 in a drum 1, and means for causing relative movement along the line of the cut between the knives and the counter surfaces at the time of cutting. The knives are mounted for radial movement with respect to the shaft 5 by rubber bushes 7 as described in Specification 849,228. The knives 4 are attached to a carrier 6 which is slidably keyed at 10, 11 to the shaft 5. The carrier is biased to the right as viewed in Fig. 2 by a spring 12 and is moved to the left by the action of a cam 13 on a fixed roller 14. The counter surfaces in the drum 1 are attached to dovetail element 16 which may be slidable in the drum 1 by the action of a similar cam and roller arrangement. Other means for reciprocating the carrier 6 and/or the elements 16, e.g. solenoids or oscillating leaf springs, may be provided.
Patent GB-353168-A (GB)
Title: Improvements in and relating to apparatus for reproducing sound
IPC: G11B17/00
Filed: 1930-05-31
Abstract: 353,168. Sound-reproducing apparatus. BRITISH THOMSON-HOUSTON CO., Ltd., Crown House, Aldwych, London. -(Assignees of Barton, F. C. ; 106, Woodland Avenue, Schenectady, New York, U.S.A.) May 31, 1930, No. 16906. Convention date, May 31, 1929. [Class 40 (ii).] Multiple gramophones; gramophones associated with kinematographs ; records.-In the reproduction of sound from disc records in succession on a plurality of sound-reproducing machines each of which may be associated with a picture projector, each record or at least one of them has in addition to a record of the sound in an outer zone an auxiliary record in an inner zone which operates to control automatically the starting of the next machine and the switching over of the output circuit of the pick-up. The auxiliary record on a zone 16 is made simultaneously with the sound record on a zone 15 from marked starting positions to facilitate setting the disc, and has recorded therein at spaced intervals towards the end of a smooth spiral groove different frequencies which operate through electroresponsive devices to effect the change over to the next machine automatically. Instructions audible to an operator through headphones 38 may also be recorded on the auxiliary record. The Figure shows two machines 1, 2 each associated with a picture projector 5, 6 driven synchronously therewith by the motor 8 and having the films marked for starting in synchronism with the marks on the records. When machine 1 is working sound from the zone 15 is reproduced by a pick-up 11 delivering through a change-over switch 12 to an amplifier 13 supplying current to a speaker 3 or bank of speakers suitably positioned. As the pick-up 11 approaches the end of the zone 15 the pick-up 21 simultaneously tracking the zone 16 is influenced by the first recorded frequency in that zone and operates through a transformer 22 and amplifier 23 to produce a current in a circuit 24 having tuned branches 25, 26, 27 corresponding with the frequencies recorded on the zone 16 and connected through rectifiers 30 to relays 29. The branch 25 now operates to actuate a relay 29 so that a solenoid in circuit with mains 36 closes a switch 32 to light the projector lamp of No. 2 machine. When the next frequency in the zone 16 influences the pick-up 21, the tuned branch 26 effects closure of a switch 33 to supply current from the mains 37 to the motor 8 of No. 2 machine. The next frequency similarly causes switch 12 to be moved over to connect the pick-up 11 of No. 2 machine to the amplifier 13 so that this machine is now in full operation. The corresponding switches 32, 33, 34 for No. 1 machine may now be opened by hand and a fresh record correctly placed on that machine which would then be started automatically from No. 2 machine if the record thereon is provided with the auxiliary record of the required frequencies.
Patent GB-333968-A (GB)
Title: Improvements in or relating to automatic or semi-automatic small arms
IPC: F41A3/82
Filed: 1929-06-04
Abstract: 333,968. Birmingham Small Arms Co., Ltd., and Norman, G. June 4,1929. Breech actions, sliding breech-block.-Relates to automatic or semi-automatic smallarms, such as rifles or pistols, in which the breech-bolt has a combined rotary and reciprocating movement and wherein the bolt 4 has locking abutments 8 with the receiver which are so inclined as to resist the full pressure of the explosion whilst yielding when the pressure falls. According to the invention, the return spring is arranged out of the line of recoil to provide space for the bolt to recede an increased distance beyond the mouth of the magazine, thereby delaying the return of the bolt in relation to the lift of a new cartridge from the magazine into the bolt-way. In the form shown, the return spring, which is screwed at the front end into a removable attachment 16, is screwed at the other end into an attachment 13 slidable without rotation in the side of the breech casing. The handle 6 of the breech-bolt, which during recoil engages the cam slot 7 leading to the rectilinear slide 10, has at its forward-end a cam 11 engaging an incline 12 on the attachment 13 whereby the return spring is placed in tension during the unlocking of the bolt. The incline 12 then passes into a circumferential recess 22 and the spring is further extended when the bolt handle 6 moves in the slide 10. The projection 23 on the breech-bolt is shown in Fig. 3 well to the rear of the usual catch 24 which operates to retain the bolt when the magazine is empty.
Patent GB-1098419-A (GB)
Title: Apparatus for the manufacture of helically wound hose
IPC: C01G43/04
Filed: 1965-04-22
Abstract: 1,098,419. Flexible pipes. AIR REDUCTION CO. Inc. April 22, 1965 [April 27, 1964], No. 17000/65. Heading F2P. Apparatus for manufacturing a variablepitch plastics hose formed by helically wrapped web and reinforcing members (26, 25 respectively), Fig. 6 (not shown), comprises a freeended rotatable mandrel 4 driven through a sprocket 3 affixed to a drive shaft 1, Fig. 1 (not shown), a plurality of segments 6, which are radially constrained by an end cap 7 and ring members 16, 17 and arranged around the mandrel circumference for axial sliding movement on said mandrel, and a cam ring 14 having at least one, or, as in Fig. 4 (not shown), two helical cam faces 15 engageable with the ends 11 of the segments, which ring is disposed between the mandrel and the ring 16 and rotatable driven relative to the mandrel through a sprocket 18. In operation, the mandrel and the cam ring are rotated, preferably in opposite directions, the segments being moved axially of the mandrel as they rotate by the cam faces 15. As each segment clears the extremity of the engaging cam face, it is snapped back against the starting portion of the following cam face by a spring 12 so that at any instant a majority of the segments are moving forward whilst the minority are being rapidly retracted. This arrangement effects forward and helical progression of the hose components. By varying the relative speeds of the mandrel and the cam ring, the helix pitch may be varied if and when desired. As illustrated in Figs. 7 and 8 (not shown), a flexible plastic hose is formed with close pitch end portions 29 and a wide pitch central portion 30 joined by transitional portions 31. The width of the web member is arranged to exceed the wrapping pitch so that the effect of varying the pitch is also to vary the wall thickness.
Patent GB-200338-A (GB)
Title: Improvements in apparatus for conveying material from place to place, more especially intended for use in loading and unloading barges and other vessels
IPC: B66C13/30
Filed: 1922-06-20
Abstract: 200,338. Wellman Smith Owen Engineering Corporation, Ltd., and Smith, J. June 20, 1922. Addition to 187,743. Electric plant. - The apparatus described in the parent Specification for unloading vessels is modified by providing separate electric motors, suitably controlled, for operating the jib and the skip. The jib, with the grab, is luffed by a motor controlled bv the panel A, and the skip is traversed by a motor controlled bv the panel B. A handlever C controls the circuits of reversing magnetic switches on the panels. When the grab has discharged into the skip, the lever C is moved to make contact at C<2>, bringing both switch-boards into operation to start the two motors and move the grab and skip in opposite directions. The grab is stopped in any desired position and returned by hand-control of the lever C, whilst automatic movements of the skip take place as follows. The motor is stopped when the skip reaches a predetermined position by means of a nut f travelling on the screwed spindle of the winding-drum E and operating a switch D. At the same time a solenoid switch G is actuated to start the motor in the opposite direction and return the skip to the original position, where it is arrested by a second switch such as D until the driver again closes the contact C<2>, The switch G comprises a dashpot or other delaying action, to allow time for the discharge of the skip.
Patent GB-1439572-A (GB)
Title: Reflectorized vehicles
IPC: B62J6/20
Filed: 1974-04-18
Abstract: 1439572 Making moulds BEATRICE FOODS CO 18 April 1974 [30 April 1973] 17105/74 Heading B3A [Also in Divisions E1 and G5] A bicycle is fitted with reflective warning devices (16), (17), (18), (19), (77), (79), Fig. 1 (not shown), which together provide retroreflection from all sides of the bicycle. Each device has a one piece moulded member 41 having a movable front face with a faceted rear face, areas 42, 43 providing standard, and areas 44, 45 providing wide-angle retroreflection. To manufacture members 41, pins 21 with faceted ends 22, 23, 24 are grouped into a pattern and a mould is formed by electroplating the ends with nickel, the inclination of the pin axes being varied to provide the diferential reflection characteristics.
Patent GB-684636-A (GB)
Title: Improvements in or relating to the manufacture of shoes
IPC: A43B9/06
Filed: 1950-07-08
Abstract: 684,636. Slip-lasted shoes; sewing. BRITISH UNITED SHOE MACHINERY CO., Ltd. (United Shoe Machinery Corporation). July 9, 1951 [July 8, 1950], No. 17128/50. Class 17 (ii). To ensure correct location of the seam which secures a platform cover, if used, and upper 28 to a shoe bottom member or sock lining 22 in predetermined relation to a platform sole member 20 and to the edge of a last in a force lasted shoe, the sock lining 22, which may be of skeleton character extending only around the edges of the shoe, is secured to the inner face of the platform sole member in such manner as to overhang the edge e.g. by forming a rabbet 24 in the edge face below the sock lining, and the vertical face of this rabbet is used as a guide for an edge gauge 32 in a sewing machine in attaching by a seam 36 the upper 28 and sock lining 22 together. A platform cover 38 may be attached in the same manner by a seam 40 parallel to the seam 36, Fig. 4. The edges of these parts are then turned down into the rabbet as shown in Fig. 5, the cover 38 being turned in under and secured to the inner face of the platform 20, and the shoe finished in the usual way. The combined sock lining and platform may be died out from a laminated sheet or died out separately and then secured together. The inner face of the sock lining where it is of skeleton character or where there is no complete sock lining but only a strip around the edge of the platform, may be covered with a thin layer of flexible material. The lower margin of the platform beneath the rabbet 24 may be set back relatively to the upper margin above the rabbet, as shown in Figs. 3, 4.
Patent GB-882271-A (GB)
Title: Staking apparatus
IPC: B21J15/18
Filed: 1960-05-16
Abstract: 882,271. Riveting. GIANNINI CONTROLS CORPORATION. May 16, 1960 [June 15, 1959], No. 17145/60. Class 83 (4). A staking or riveting press for interconnecting two assembled parts comprises a base 10 for supporting the assembled parts, a frame 13 having an upper section 14 and a lower section 15 overlying the base, a spring-loaded hollow hold-down punch or work-holder 17 vertically reciprocable in said lower section, a spring- loaded staking or riveting punch 21 slidable in the hold-down punch, a spring-loaded hollow ram 23 movable vertically in said upper section and containing an air cylinder 28, actuating means operatively connected to the ram for urging it downwardly to press the hold-down punch against the assembly on the base, a spring-loaded piston 29a reciprocable in said cylinder and engageable with the upper end of the staking punch, biasing means urging the piston upwardly in the cylinder, a compressedair line 32 and a control valve 33 for supplying pressure fluid to the ram cylinder for actuating the piston downwardly against the staking punch. The parts to be staked comprise a lower part 11 resting on the base 10 and supporting an upper part 12 provided with a hole for receiving a detent 11a on the part 11. A flanged head 21a on the staking punch 21 limits its downward movement in the hold-down punch 17. The ram is moved downwardly in the upper section 14 by means of a hand lever 26 which engages a pin 23a on the ram movable in a slot 14a in the upper frame section. A stop 40 limits upward movement of the ram. In operation, the lever is swung downwardly to depress the ram against the head of the hold-down punch so that the punch tightly engages the workpiece 12 and holds the assembly in the proper staking position on the base 10. The valve handle 37 is operated to open the valve 33 and the piston 29 is driven downwardly and impacted against the staking punch 21 to effect the staking of the assembled parts. Due to an air vent 38 in the ram cylinder, the downward blow of the piston is entirely an impact blow developed by the piston mass and the velocity imparted to it by the pressure fluid thus after impact there is no air pressure to recoil the ram or develop strain in the frame 13.
Patent GB-181246-A (GB)
Title: Improvements in or relating to shock-absorbers
IPC: F16F9/14
Filed: 1921-06-22
Abstract: 181,246. Houdaille, M. June 22, 1921. Fluid-friction vibration-dampers. - In liquid shock-absorbers of the kind described in Specification 167,194, the vane spindle 1, Fig. 1, fits in a central socket of the cover 3, which is screwthreaded into the casing and also has a spigot 5 fitting in a part of smaller diameter than the screw-thread and resting on a shoulder. The compensating-chamber 8 has a central bowl 10 bearing a nut 11 screwed on the socket 4, and receiving a stuffing-box comprising two leather washers 13 of triangular section, one housed in a recess in the socket and the other in a gland comprised by a hollow nut 14. The spindle has helical oil grooves 15 and barrier grooves 16, lubricating liquid from the pressure chamber being returned to the compensating-chamber through orifices 17. The valves 18, Fig. 6, now comprise bales held open by springs 19 fixed to claws 20, the movement of the bales being limited by claws 21. The seat has channels 20<1> to allow air to pass when the valve is closed. Additional valves on either side of the valve 18 are arranged to facilitate liquid passage. For suppressing super pressure on the vanes, they are provided with conduits 22, Fig. 3, normally closed by resilient vanes 23 which open at a predetermined pressure. Further the vanes may be provided with shoes 24, Fig. 9, to increase the guiding-surface, and may be provided with oil-grooves.
Patent GB-1463482-A (GB)
Title: Hair-trimming unit
IPC: B26B19/10
Filed: 1975-04-25
Abstract: 1463482 Dry shavers PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 25 April 1975 [29 April 1974] 17277/75 Heading B4B A hair-trimming unit 1 for, e.g. a dry shaver comprises a frame 30 for supporting a stationary cutter 31 and a movable cutter 33 and a coupling member 36 slidably and pivotably mounted on a spindle 35, the coupling member being urged into engagement with the movable cutter by a pair of torsion springs 41, 42, 43 so that the coupling member can transmit the drive from a motor 6, 7 to the movable cutter. The coupling member is provided with a first projection 38 adapted to engage a hole 39 in the movable cutter 33 and with a second projection 40 adapted to engage a slot 29 in a drive lever 14 operated by the motor 7, 13. The trimming unit is mounted on a slide plate 61 which is movable by a button 65 to bring the projection 40 into or out of engagement with the drive slot 29.