baber/WOPTO huggingface dataset:
Patent GB-558535-A (GB)
Title: Improvements in screw-cutting lathes
IPC: B23G1/04
Filed: 1942-10-30
Abstract: 558,535. Lathes. SHAW, H. R., and VARNDELL, S. H. Oct. 30, 1942, No. 15246. [Class 83 (iii)] In a screw-cutting lathe of the kind wherein the tool is traversed by a lead-screw engaging a nut segment which may be disengaged at a predetermined point, the lead-screw 9, Fig. 5, is removably secured by a screw 15 in a shaft 8 driven from the work-spindle 7 at half the work speed through gearing 16. The bearing 10 for the shaft 8 is secured in the machine frame 11 by a screw 12 so that it may be secured together with the lead-screw when the latter is being changed. The other end of the lead-screw is supported in a bearing 20 in a bar 18 secured to the machine frame 11 and also to a fixed bracket 19, this bar forming a support for a slidable and rotatable sleeve 25 to which the tool holder 37 is attached. A hand lever 27 is pivoted to the sleeve 25 and carries a pivot 31 for a member 30 to which is attached the nut segment 23 for engaging the lead-screw 9. A tooth 32 on the member 30 meshes with a slot in a member 29 secured to the sleeve 25, springs 40 being provided between pins on the member 29 and lever 27 tending to raise the members relatively to the lever and maintain the segment 23 out of contact with the lead screw and the tool 24 away from the work. A spring 26 is also provided within the sleeve tending to rotate the latter into a position with the lever 27 vertical at the back of the lathe. To start a screwing operation, the operator pulls down the lever 27 until a projection 34 on the member 30 meets a former 35 attached to the front of the headstock. Further pressure on the lever then rocks the member 30 about the pivot 31, causing the segment 23 to engage the lead screw and swinging the tool down to the work. The operator maintains his pressure on the lever 27 to cause projection 49 thereon to slide along the former 35, and the sleeve 25 is then traversed for the screwing operation. When the desired length of thread has been cut the projection 34 rides off a step 36 on the former 35, and the springs 40 rock the members 29, 40 to remove the segment from the lead-screw and the tool from the work. On release of the lever 27 the spring 26 returns it to a vertical position and also draws the sleeve 25 axially to its starting position against an adjustable collar 41. The former 35 may be adjusted angularly to cause the lever 27 to rock during the traverse and cut a tapered thread.
Patent GB-750239-A (GB)
Title: Improvements relating to the production of porous thermoplastic polymers
Inventor: HONEY ERIC MAURICE O'CONOR
IPC: B32B27/00
Filed: 1953-06-03
Abstract: Sintered porous thermoplastic polymer sheets (see Group V) are combined as laminations with other sheets of flexible spongy material such as can be made by mixing a pore-forming ingredient with a thermoplastic polymer and a solvent and then removing the ingredient and the solvent so as to leave micro-pores.  When a uniformly fine material such as maize starch is used as the pore-forming ingredient the resulting uniform microporosity is a valuable feature for filter diaphragms but the spongy material may lack mechanical strength, but when combined with the sintered thermoplastic sheet the mechanical strength is considerably raised while permeability remains. Specification 565,022, [Group IV], is referred to.ALSO:A surgical splint comprises a composite porous structure in which sintered porous thermoplastic polymer sheet material (see Group V) is combined with flexible sponge-like sheet material to give a laminated sheet that can be permanently bent by heating to a temperature at which the sintered thermoplastic has softened enough to be movable under light pressure though the sponge-like material remains unaffected; on cooling, the composite sheet retains its new form.  The splint is heated and placed on the patient's body with the sponge-like layer next the skin, when it is shaped in situ.  Specification 565,022, [Group IV], is referred to.
Patent GB-734236-A (GB)
Title: Improvements in methods and apparatus for making bore holes
Inventor: BIEDENDIECK CARL HANS
IPC: E21B10/26
Filed: 1953-06-03
Abstract: 734,236. Rock drills. DEILMANN BERGBAU GES., C. June 3, 1953, No. 15342/53. Class 85. In a method of making bore holes of large cross-section in rock and the like, cutting tools are moved in curved paths such that they have radial and axial components of movement superposed on each other, whereby the tools strike repeatedly against the rock. A shaft 1 driven by a motor 8 carries eccentric bushes on which are freely mounted frusto-conical carrier members carrying cutting tools 5 at their peripheries. The axes of the eccentric bushes are tilted so as to give a wobbling motion to the carriers. The lowest carrier comprises a plurality of discs 6. Guide rollers 10, 12 are also arranged on the shaft 1, the rollers 10, 12 being eccentrically mounted and the roller 11 concentrically mounted. A rotary drilling tool 7 may be used to produce the pilot hole. The carrier member may comprise crossed arms or may be elliptical, Fig. 1d. The cutting tools may form one or more continuous cutting rings on each carrier member, or the tools may be arranged in the form of spirals. An aftercutter may be provided behind a group of cutting tools. For boring a hole upwardly and making use of a pilot bore hole extending completely through the rock, the device may be supported and feed pressure applied thereto by means of a rope.
Patent GB-1206236-A (GB)
Title: Heat-generating pipe arrangement
IPC: F24H1/10
Filed: 1968-03-29
Abstract: 1,206,236. Electric heating pipe. CHISSO CORP. 29 March, 1968 [30 March, 1967], No. 15406/68. Heading H5M. [Also in Division H2] A heat generating ferromagnetic pipe 1 contains an axially extending insulated conductor 16 which is connected to an A.C. supply 5 at one end and to the pipe 1 at the other so that the inner surface of the pipe 1 is heated by current concentrated therein by skin effect and the outer surface is heated solely by thermal conduction, the electrical insulation level of the inner conductor being stepwise reduced from the A.C. supply end to the other end. The current concentration in the inner surface of the pipe 1 is ensured by making the pipe thickness more than twice the penetration depth of the current and the length of the pipe greater than its internal diameter. The pipe has terminals 11, 12 at opposite ends earthed at 13 and 14. As shown, the thickness of insulation is reduced in three stages 2, 3, 4. A current transformer 7 monitors the current in the heating circuit and opens a circuit breaker 6 in the supply line by way of relay 9 in the event of a break e.g. at 10 in the heating circuit. The circuit breaker is designed to open before the insulation of the last stage 4 has time to break down. The pipe is earthed at both ends and is designed to be welded longitudinally to an oil line to heat it. The pipe is filled with a thermally conducting fluid e.g. salt water oil, alcohol, fat &o.
Patent GB-1400101-A (GB)
Title: Electronic oscillator circuit for a timepiece
IPC: H03L1/02
Filed: 1973-03-30
Abstract: 1400101 Electronic timepieces SUWA SEIKOSHA KK 30 March 1973 [6 April 1972 2 May 1972] 15415/73 Heading G3T [Also in Divisions H1 and H3] Oscillator tuning is effected by a stepped variable capacitor C<SP>11</SP>, and a continuously variable capacitor C 1  having a range of at least as great as the steps. This permits a reduction in physical size of C  1  for a given tuning range, thus facilitating construction in a wristwatch. A quartz crystal X and transistor Tr are included. In a combined construction Figs. 5, 6 (not shown) the continuously variable C 1  is formed by a plate (9) in a rotatable dielectric carrier (8) fixed to a shaft (6), and a fixed plate 7. Plate (7) is integral with a plate (2) which forms one side of the stepped capacitor (C<SP>11</SP>), the other side of which is formed by one of varying length plates (4) selected by a contact (5) carried by the shaft (6).
Patent GB-815086-A (GB)
Title: Chlorinated polyethylene
Inventor: BAILES PETER
IPC: C08F8/20
Filed: 1956-02-07
Abstract: Linear polyethylene is dispersed in finely-divided form in water or in an inert organic solvent, and is then chlorinated. The polyethylene is produced using a Ziegler type catalyst formed by mixing a compound of a Group 4a, 5a, 6a, 7a or 8 metal, with an organometallic compound or hydride (or various complexes thereof) of a Group 1, 2 or 3 metal, tin or lead, or with an organic boron compound or complex thereof; in this connection Specifications 799,392, 799,823 and 801,031 are referred to, and in the examples the polyethylenes are produced with a catalyst derived from diethylaluminium chloride and titanium tetrachloride.  In examples, chlorine is passed through suspensions of polyethylene in either carbon tetrachloride or in water containing an octyl cresol/ethylene oxide condensate as wetting agent.  The products, which preferably contain at least 5 per cent and in some cases as much as 60 per cent chlorine, are of improved transparency and flexibility and find application as films and mouldings.  The examples also describe compositions of the chlorinated polyethylenes with lead stearate and dioctyl and dibutyl phthalates.
Patent GB-353590-A (GB)
Title: Improvements in and relating to electro-magnetic clutches
IPC: F16D27/06
Filed: 1930-05-21
Abstract: 353,590. Electromagnetic friction clutches. HODGSON, H. E., c/o Cutler- Hammer, Inc., 12th Street, Milwaukee, Wisconsin, U.S.A. May 21, 1930, No. 15620. Convention date, Aug. 2, 1929. [Class 80 (ii).] In electromagnetic friction clutches, the armature 8 is carried on its hub 6 bv a flexible disc 9, which tapers in thickness towards its periphery in order to reduce the pull necessary to engage the clutch surfaces 15, 16 and thus relieve the stress on the securing-bolts 28, 32. The armature and fieldmagnet members 8, 11 are each of L-section,in order to separate the air gaps and reduce leakage. The coil 10 is wound in a sheet-metal bobbin 21, 22, 23 and is bolted to the member 11, which is spigoted on and bolted to its hub 5 and is centred in the hub 6 by an extension 19 and roller bearing 18. The faced friction ring 15 is axially adjustable by screwplugs 37 having clamping screws 38. The friction rings 15, 16 may extend radially beyond the parts 8, 11. Each of the collector-rings 26, 27 comprises two channel-section parts a, b bolted together back-to-back, each part a, b comprising two semicircular segments 40, Fig. 3, the junctions of which are displaced 90‹ in the two parts. Recesses 43 register to form radial sockets receiving insulating plugs 44, which are engaged by the ends of screwadjusted spokes 47 for centring the ring on the hub 5.
Patent GB-355295-A (GB)
Title: Photographic copying apparatus for sound films
IPC: G11B7/28
Filed: 1930-05-21
Abstract: 355,295. Photographic sound-record films. SIEMENS & HALSKE AKT.-GES., Siemensstadt, Berlin. May 21, 1930, No. 15673. Convention date, June 1, 1929. [Class 98 (ii).] Contact printing apparatus for sound-record films, in which the negative and positive films are fed together continuously over a fixed guide path in the printing zone, is provided with means for pressing the films separately in a lateral direction against a common edge guide bar, in order to ensure correct lateral set of the films in the printing zone. As shown, the films 3, 4, Fig. 1, are driven together by a sprocket 5 over a curved guide 2 in the printing zone. At one side of the guide 2 is a fixed guidebar 2<1>, Fig. 3. At the other side are secured, on a series of brackets 8, holders 9 having slideways 18, 19, Fig. 6, for slides 11 each bearing a guide face 12, Fig. 4, adapted to bear on the edge of one of the films, and a projecting knife-edge 15 adapted to engage between the films. The slides 11 are pressed against the edges of the films by spring- urged levers 10, and, as indicated in Fig. 6, one set of slides is mounted in the slideways 18 with the guide face 12 below the knife-edge 15, while the remainder are inverted and mounted in the slideways 19 so that the two films are separately urged by the two sets of slides towards the guidebar 2<1>.
Patent GB-1527885-A (GB)
Title: Recording tape deck
IPC: G11B15/675
Filed: 1975-10-30
Abstract: 1527885 Cassette tape transports NORTH ATLANTIC INDUSTRIES Inc 30 Oct 1975 [15 Nov 1974] 15683/78 Divided out of 1527884 Heading G5R The disclosure is the same as that in Specification 1,527,884, but the claims relate to an arrangement for guiding a cassette tape during its insertion into a tape deck and for defining the inserted position of the cassette therein.
Patent GB-102935-A (GB)
Title: Improvements in or relating to Closing Devices or Covers for Receptacles or Containers of all kinds.
IPC: B65D43/02
Filed: 1916-11-03
Abstract: 102,935. Soc. Anon. Appareillage Electrique Grivolas. Dec. 22, 19J5, [Convention date]. Stoppers, spring.-In a closing-device or cover for a receptacle or container, a helical spring surrounds the cover and engages a groove in the receptacle, or vice versa. Fig. 4 shows a cover a with a circumferential groove a containing a helical spring b, which engages a groove c<1> on the inside of the receptacle c. As shown in Fig. 8, the helical spring b is mounted in a circumferential groove c<2> on the external surface of the receptacle c, and the cover a has a flange a<3>, which fits over the receptacle and is provided with a groove a' to receive the spring b when the cover is applied to the receptacle.
Patent GB-181357-A (GB)
Title: Improvements in or relating to tipping devices for vehicle bodies
IPC: B60P1/16
Filed: 1922-06-06
Abstract: 181,357. Bernard, E. June 7, 1921, [Convention date]. Tip-boxes. - Fixed hydraulic jacks, applicable for tipping bodies of all classes for any purpose, have their piston-rods connected to one another by a cross-shaft, the ends of which are connected to the body by devices such as shackles, slides, or rollers. As shown applied to a tipping-wagon, the jacks are mounted on a cross-piece 1 on the frame and their piston-rods 4 are pivoted to a cross-shaft 5 which carries at its ends shackles 6 connected to a sole-plate 7 fitting under the longitudinals 8 of the body. The jacks are operated by a pump 9 connected to the jacks 4 by piping 10, 11.
Patent GB-352976-A (GB)
Title: Improvements in and relating to safety razors
IPC: B26B21/18
Filed: 1930-04-15
Abstract: 352,976. Safety razors. THOMPSON, R. E., 428, Warren Street, Brookline, Massachusetts, U.S.A. April 15, 1930, No. 15818/31. Convention date, April 25, 1929. Divided on 352,975. [Class 30.] In a safety razor of the kind in which a thin blade is flexed round a cylindrical guard member by pressure of the edges of a cap, the blade is recessed at the corners 25 so that no portion of it lies under the corners of the cap. The cap is reinforced by thickened portions 37 at the corners, fitting loosely into longitudinal channels 21 in the guard. Specification 352,975 is referred to.
Patent GB-966932-A (GB)
Title: Improvements in or relating to radio receivers
Inventor: GOTCH MICHAEL SEYMOUR
IPC: H04B7/005
Filed: 1962-04-26
Abstract: 966,932. Receiver muting circuits; transistor switching circuits. PYE Ltd. April 23, 1963 [April 26, 1962], No. 15912/62. Headings H3Q and H3T. A radio receiver muting circuit comprises a transistor switching circuit in which backlash is reduced by feeding a train of pulses to the switching circuits. As described, a Schmitt trigger circuit TR1, TR2 is switched by means of a signal which is proportional to the receiver signal/noise ratio, the output from the trigger being used to mute the receiver audio stage. In order to reduce the backlash in switching, a pulse train C, Fig. 1B, is derived from the D.C./ D.C. converter TR3, TR4 and is fed to the switching circuit via network 13. This pulse train is superimposed on the muting signal variation B to reduce the difference between the upper and lower switching levels. In mains operated receivers the pulse train may be derived from the waveform of the A.C. mains supply.
Patent GB-377364-A (GB)
Title: An improved means of bracing wood framed buildings and the like
IPC: E04B2/70
Filed: 1931-06-01
Abstract: 377,364. Walls. MCLEAN, D., 32, Queen Alexandra Road West, North Shields, Northumberland. June 1, 1931, No. 15934. [Class 20 (iv).] Relates to an improved means of bracing a woodframed wall, such as that described in Specification 238,332, [Class 20 (iv), Floors &c.]. As shown, the frame comprises a head E and sill E<1> joined by a plurality of studs A of equal width, strengthening boards D being added at the top and bottom. The braces C are nailed in position across the studs A, being arranged with their bottom ends at the bottom corners of the frame and their top ends at the top centre of the frame, and the boards D are cut to accommodate the ends of the braces. Finally, the furring battens B are cut into suitable lengths and nailed across the studs A with their ends abutting against the braces C, to which they may also be nailed. The members B, C, D, which are preferably of the same thickness, are duplicated on the other side of the frame, and serve to support the covering slabs of the wall. After the slabs are applied, the structure may be further strengthened by the application of expanded metal and a final cement rendering.
Patent GB-163603-A (GB)
Title: A collapsible ambulance stretcher
IPC: A61G1/013
Filed: 1920-06-14
Abstract: 163,603. Allen, H. June 14, 1920. Litters. - A stretcher is formed of'doubled canvas a sewn down the centre to allow of the insertion of a pole c at each side. Webbing b with looped ends is attached at intervals. The poles c are rounded within the canvas and pivoted to their ends are cross-bars d adapted to be connected to fix the stretcher by a dowel h on one part fitting into a hole i in the other and a slot j engaging a headed pin k, a locking-pin g being also provided.
Patent GB-688521-A (GB)
Title: Improvements in or relating to sliding clasp fasteners
IPC: A44B19/16
Filed: 1951-07-06
Abstract: 688,521. Sliding-clasp fasteners. SANDER, E. July 6, 1951 [July 7, 1950], No. 16062/51. Addition to 681,117. Class 44 In a sliding clasp fastener of the kind described in the parent Specication and adapted for water-tight or gas-tight sealing of bags &c., a beading 2 of circular cross section on the upper-most strip 1 extends over the whole length of the strip fitting when the strips are interengaged in a corresponding groove 3 in the underneath strip 4. The edge of the strip 4 engages an undercut rib 5 on the strip 1. The strips are permanently connected at their ends but may be forced apart over the central portion being closed again when necessary by a slider 6 having inturned portions 8, 9 engaging in grooves 10, 11 to prevent tilting as the beading 2 is forced into the groove 3 by a portion 7 on the slider.
Patent GB-998319-A (GB)
Title: Improvements in or relating to dishwashing machines
IPC: A47L15/24
Filed: 1962-04-26
Abstract: 998,319. Dishwashing machines. HOBART MANUFACTURING CO. April 26, 1962 [April 26, 1961], No. 16073/62. Heading A4F. In a dishwashing machine food scraps are removed from dishes in a pre-rinsing compartment 30 equipped with means for spraying liquid drawn by a pump (not shown) from a supply tank 32, perforated waste collecting baskets 65 are dispersed in an extension 60 of the supply tank 32 so that the rims thereof are above the liquid level, and inclined pans 45 cover the tank 32 beneath the spraying means so that waste material is directed into the basket 65. The extension 60 is preferably beneath the loading table 70 which has a removable cover plate to provide easy access to the handles 68 of the waste baskets 65. The sprayed water is directed by an inclined wall 40 and baffles 41, 42 on to the pans 45, which are perforated to allow some liquid to return directly to the, tank 32, while leaving sufficient flow to carry the waste matter to the baskets 65. In a modification the baskets may be covered by plates each having differently sized apertures so that the waste matter is distributed among the baskets according to particle size; and in a further modification the dishwashing machine is of the continuous conveyer type.
Patent GB-770404-A (GB)
Title: Improvements in or relating to machines for cutting industrial jewels and the like
IPC: B28D5/02
Filed: 1954-05-31
Abstract: 770,404. Cutting industrial jewels. GENERAL ELECTRIC CO., Ltd., HUMPHREY, R., and TOEMAN, R. May 31,1955 [May 31, 1954], No. 16087/54. Class 124 A -machine for cutting blanks from industrial jewels comprises a rotary cutting tool mounted on a first member slidable on and lockable to the bed of the machine, a second member slidable on and lockable to the bed of the machine, means urging the members apart, means to control the maximum gap between the members, means to clamp and unclamp locking means on the first and second members in turn, and means to urge the first member towards the second member at least when the first member is unlocked from the bed. As shown, a cutter 1 is driven by a motor 3 mounted on a member 5 which is slidable on the bed 6 of the machine and which may be locked to the bed by hydraulically operated gib strips. A second member 7 is also slidable on the bed 6 and may be clamped thereto by hydraulically operated gib strips. Springs 9 urge the two members apart to a distance controlled by a micrometer screw 8. Industrial jewels in the form of rods to be cut are mounted on a table 15 which traverses the bed at right angles to the axis of the motor. In operation, after the table has made one traverse of the bed, the member 5 is unclamped from the bed, the piston of hydraulic cylinder 10 moves the member 5 towardsthe member 7 and the member 5 is again clamped to the bed. The member 7 is now unclamped and under the urge of the springs 9 moves away from member 5 to a distance controlled by the micrometer screw and is again clamped. The table then makes another traverse of the bed The members 5 and 7 may be clamped and unclamped,by hydraulic means which may be controlled by the movement of the table 15. Materials such as glass, germanium and silicon may also be cut. Specification 770,043 is referred to.
Patent GB-354884-A (GB)
Title: Improvements in or relating to the construction of frames for looms for weaving
IPC: D03D49/02
Filed: 1930-05-26
Abstract: 354,884. Loom framework &c. LEWIN, F., Station Street Buildings, Huddersfield. May 26, 1930, No. 16127. [Class 142 (ii).] Each loom side frame 10, 11 comprises a web 15 lying substantially in a single plane with deep reinforcing ribs 16 extending inwards towards the other loom side. The cross girts 12, 14 spacing the looms sides are furnished with plates contacting with the inner edges or faces of the reinforcing ribs, which at these parts extend further towards the centre of the loom than the main parts of the reinforcing ribs. Spaced pads 53, 56, 61 on the smooth outer plane of the web receive castings supporting the loom operating parts ; thus bolts and nuts 42 situated in an accessible position on the outside of the loom frame secure to a pad 40 the foot 39 of a stand 38 supporting the pivot stud 37 of the picking lever 36, the strains caused by the picking motion which cause outward bowing of the loom sides, resulting in the strengthening reinforcing ribs being compressed so that the strains are efficiently resisted. An under-pick loom with drop boxes and with a magazine having its foot 50 supported by a pad 53, and equipped with a whip roll &c. is illustrated. Breast beams. As shown in Fig. 6, parts of the ribs are shaped to form pockets 24 to receive the shouldered down ends of a breast beam 13 extending between the loom sides, the pockets being closed at their front ends and open at their rear ends.