US1692364A - akemann - Google Patents

akemann Download PDF

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Publication number
US1692364A
US1692364A US1692364DA US1692364A US 1692364 A US1692364 A US 1692364A US 1692364D A US1692364D A US 1692364DA US 1692364 A US1692364 A US 1692364A
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Prior art keywords
angle
drum
guns
shaft
sun
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F41—WEAPONS
    • F41G—WEAPON SIGHTS; AIMING
    • F41G3/00—Aiming or laying means
    • F41G3/14—Indirect aiming means

Definitions

  • Figs. 1 and2 are diagrams illustrating the principle of the invention
  • I Figs. 3 to 6 represent three difierent embodiments of the invention, diagrammatically illustrated in Fig. 2.
  • FIG. 1 which represents one observation point and one gun, both of which may be carried by'a moving vehicle or vessel
  • A represents the observation point, A the gun mount and A the target.
  • the difference in location is therefore represented by the line AA which includes, when extended, with the line AA connecting the observation point A with the target A the angle designated a.
  • the lines A--'A and A 1 enclose the angle ,8, and the lines AA and A 2 the angle 7.
  • the perpendicular from A to line AA strikes said line in the point A.
  • a a line parallel to A-A which includes, with the line A A as will be obvious, an angle equal to the angle y, included by A A and A A
  • the equation for these angles a, ,8 and therefore is:
  • the angle y is directly proportional to the difference of location and to the sin a, but inversely proportional .to the distance of the target. This relation is made use of in the following, in order to obtain mechanically, from the measured target distance A A from the observed angle a, and from the known location difference A A the angle 'y,WhiCl1 is im- 1 that is to say, values of 7 which bear.
  • the angle a determined by the observer, through the angle 7y, determined in each instance by equations (5') to (7). Since the angle :y can have either positive or no it is necessary 10o negative values according as to whether the f angle a is greater or less than 180, and according to the position of the observation point relatively to the guns, the equations (8) to (10) really express that the lateral sighting angle B of each gun equals the algebraic sum of the angles a and The present invention therefore consists in a lateral sighting or training mechanism for us of the kind mentioned, in which a special intermediate transmission.
  • said intermediate transmission mechanism is provided between the transmitter at the observation point, and the receiving devices at the various gun stations, the function of said intermediate transmission mechanism being first to mechanically derive the auxiliar angle y from the angle or, obtained by sig ting on the target, and secondly to mec'hanically form the algebraic sum of angles a and or to carry out one of the two said functions.
  • Figs. 3 to 6 which are based upon the diagram of Fig. 2, Fig. 3 represents one embodiment of the invention, while Fig. 4 is a section on line 1-4 of Fig. 3 looking from the left.
  • a sighting telescope D (Fig. 3), rotatable about a vertical axls by a worm drive d d and a hand wheel d on the worm shaft d transmission apparatus.
  • the drum g is positively connected, by means of a evel gear and worm, with a worm wheel 9 freely rotatable about the hub g of the drum G and rigidly connected with a bevel gear 9* by a hollow shaft 9
  • a second similar bevel gear i is rigidly connected by its shaft f,
  • the transmission ratio is as 1: 1.
  • the two bevel gears g and f form the sun wheels of a sun and planet drive
  • planet gear-g of which'is loosely mounted on a right-an led projecting arm g of a shaft 9 coaxial with the drum G and pass- Y ing through the hollow shaft 9 and the drum hub g.
  • a bevel gear 9 On the end of the shaft 9 which projects into the drum G, is keyed a bevel gear 9 which meshes with a bevel gear 9 keyed on a shaft 9 which is journalled within the drum G so that its axis coincides with a diameter of said drum and is screwthreaded at g for about half its length.
  • the length of the crank-arm can be adjusted to various amounts, the arrangement being such that the crank-arm attains its greatest length when the pointer 9 indicates the lowest value of the corresponding distance graduation (drum 9 and vice versa. Therefore, in order to make the length of the crank-arm inversely proportional to the Tdistance between observation point and target, it is only necessary, as will now be evident, to adjust llcl the graduated drum g to the desired distance value by means of the hand-wheel 9 On account of the provision of the sun and planet drive f g", gfi it is quite immaterial whether the drum G and shaft G revolve or whether it remains stationary. If the drum G does rotate, then, on account of the equality of the transmission ratios of the,
  • spur gear drives f g and f f and on acdirection of movement of the pin k thus forming, in combination with the arm H, ad justable longitudinally of the screw spindle g, a slide crank drive, which comprises a reciprocatory portion (guide h) of variable stroke, and a rotary portion (pin if) of variable crank radius.
  • a slide crank drive which comprises a reciprocatory portion (guide h) of variable stroke, and a rotary portion (pin if) of variable crank radius.
  • a rack k extending parallel to the guideway It and which meshes with a pinion i keyed on a shaft J, on which are also mounted three bevel gears 2' corresponding in number to the guns to be sighted.
  • Each of said gears meshes with another bevel gear 1?, with which is positively connected, through a spur gear drive 5 t the one sun gear i of a-sun and planet drive 2' z" i
  • the other sungear i of each of said drives is positively connected,by a bevel gear drive 2 f, with the auxiliary receiver shaft 7".
  • the same ratio is given the bevel gears f and 6 as the spur gears f and f.
  • Each of the planet gears z" serves to drive an auxiliary transmitter 11 all three of which are connected to the main receivers (not shown) which belong to the individual guns.
  • the second embodiment of the invention differs from the one just described in that on the shaft f of the intermediate transmittin-g mechanismthe bevel gears f and the sun and planet mechanisms i i i, driven thereby, being 0lI1ltted-3,Il auxiliary transmitter f is mounted which is connected by a conductor N, divided into three parallel branches n n u to a device P, indicating the angle a, for each of the three guns.
  • a device P for indicating the angles Y2 and y which are each fed by a special auxiliary transmitter 2' Thesetransmitters 2' are driven through bevel gears drives 4 2' from the pinion shaft J, which is driven by the crank slide mechanism Hk of the intermediate transmission mechanism.
  • the bevel gear drivesz' 71 are so arranged and have suclrtransmission ratios that the angular alterations imparted to the auxiliary transmitters are equal to the angles Y2 and y which are to be algebraically added to the angle a, in order to obtain the lateral sighting angles ,8 8 and ,8 of the guns.
  • the devices P and P are provided with pointers p and p by means of which the angle or 31nd the angles 72 and can be read on graduated discs. Furthermore, trailer pointers or following marks 9 g are arranged coaxially with the pointers p and p and revoluble independently of the Same, of which one, is driven by the planet gear 9 of a sun and planet drive, the sun gears g and g of which are positively connected on the one hand with a circular rack 9 mounted on the gun carriage Q, and on the other hand through spur gears g, g and with ahand-wheel 9.
  • another hand-wheel g is pmovided, which is positively connected by a vel gear drive sun and planet drive 9, g g and positively connected to the hand-wheel g remains stationary.
  • said hand wheel g when said hand wheel g is turned, the sum or difference of the rotations of the sun gears g and 9 must be transmittedto the mark g Consequently the latter, after'it has been placed over the pointer 39 by a rotation of the hand-wheel must take a position different fromthat of the pointer 12 as soon as the markfg has been brought into coincidence with its ointer p by means of the .hand'wheel g".
  • WlllCll angle representsthe algebraic sum of the angular alterations or and 7 and y v V If the crank slide drive Hh is brought into direct positive connection with the driving member d of the main transmitter d the arrangement will be that shown in Fig. 6.
  • an auxiliary transmitter 2' is coupled to the pinion shaft J its functonbeing to feed an auxiliary receiver i, serving, in combination with the auxiliary receiver F, to drive the intermediate transmission mechanism.
  • the receiver 2' is positively connected With a shaft 71 on Which are secured the bevel gears i shown also in Fig. 3, which drive the sun gears 11 of the sun and planet drives 2' i i
  • the auxiliary transmitters z' are positively connected with the planet gears 11 in exactly the same Way as in the arrangement of Fig. 3. Accordingly, the arrangement of Fig. 6 differs from that of Fig. 3, as far as its operation is concerned, only in the fact that the adjustment of the scale drum g for variable distances must be made at the observation point. It can therefore be worked by the same operator who has charge of the directing of the telescope D on the target. A special operator for the intermediate transmission mechanism is therefore not required.
  • Apparatus for imparting the lateral direction to a plurality of guns from a distant observation point comprising a telescope at said point, an electric transmitter mechanically connected to said telescope to rotate therewith, an electric receiver electrically connected to said transmitter, an auxiliary electric transmitter for each gun operatively connected to a corresponding receiver at each gun, which controls the directing thereof, and a transmission gearing between said first named receiver and said auxiliary transmitters including a rotatable element positively connected to said first named receiver and ad justable in accordance with the distance of the target from the observation point and an element positively connected to said auxiliary transmitters and movable in a straight line, said elements constituting a slide crank deyice forming part of said transmission gearmg.
  • An apparatus for imparting the lateral training to a plurality of guns from a distant observation point comprising a sighting device disposed at said observation point, gun training mechanism at each gun to be actuated in dependence on the lateral movements of said sighting device, an intermediate transmitter apparatus, said apparatus embodying a slide crank device, an adjustable crank forming a part of said crank device, means including a sun and planet gear for operating said adjustable crank, an electrical distance control connecting said last mentioned means to said sighting device, said adjustable crank being rotatable proportionally to the lateral sighting angle of said sighting device, an indicating device provided with a stationary support and means operatively connecting said indicating device to one gear' of said sun and planet gear and electrical distance control means connecting said intermediate transmitter apparatus to said guns.
  • An apparatus for imparting lateral direction to a plurality of guns from a distant observation point comprising a sighting device located at said point, an intermediate transmitter apparatus, distance adjusting mechanism connecting said sighting device to said intermediate transmitter apparatus and gun training mechanism at each gun, each mechanism] embodying receivers each provided with a pointer, one of said receivers being adjustable in accordancewith the lateral adjustment of said sighting device, said I other receiver being adjusted by said intermediate transmitter apparatus, a gauge-mark associated.
  • each gun may be trained laterally in accordance with the readings of its associated two receivers.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • A Measuring Device Byusing Mechanical Method (AREA)
  • Gear Transmission (AREA)
  • Retarders (AREA)
US1692364D 1917-04-12 akemann Expired - Lifetime US1692364A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEK63977D DE406247C (de) 1917-04-12 1917-04-12 Fuer Geschuetze bestimmte Seitenrichtvorrichtung

Publications (1)

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US1692364A true US1692364A (en) 1928-11-20

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US1692364D Expired - Lifetime US1692364A (en) 1917-04-12 akemann

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US (1) US1692364A (fr)
DE (1) DE406247C (fr)
FR (1) FR520380A (fr)
GB (1) GB147130A (fr)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2419886A (en) * 1933-09-22 1947-04-29 Ford Instr Co Inc Apparatus for gunfire control
US2458448A (en) * 1944-02-26 1949-01-04 Eastman Kodak Co Gun training by tracer fire spotting
US2569010A (en) * 1951-09-25 Gun sight
US2587018A (en) * 1946-03-05 1952-02-26 Max J Weisfeldt Apparatus to record images of moving subjects
US2740325A (en) * 1953-01-23 1956-04-03 Reflectone Corp System for composite projection
US2881664A (en) * 1944-07-27 1959-04-14 George A Chadwick Main battery multiple gun turret sight mechanism

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE755164C (de) * 1936-03-21 1953-03-09 Anschuetz & Co Gmbh Anlage zum elektrischen UEbertragen der Drehbewegung eines Kommandogeraetes auf einen ferngesteuerten Gegenstand
CN113086171B (zh) * 2021-04-11 2022-07-19 燕山大学 直升机共轴双锥旋翼并联手动装置

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2569010A (en) * 1951-09-25 Gun sight
US2419886A (en) * 1933-09-22 1947-04-29 Ford Instr Co Inc Apparatus for gunfire control
US2458448A (en) * 1944-02-26 1949-01-04 Eastman Kodak Co Gun training by tracer fire spotting
US2881664A (en) * 1944-07-27 1959-04-14 George A Chadwick Main battery multiple gun turret sight mechanism
US2587018A (en) * 1946-03-05 1952-02-26 Max J Weisfeldt Apparatus to record images of moving subjects
US2740325A (en) * 1953-01-23 1956-04-03 Reflectone Corp System for composite projection

Also Published As

Publication number Publication date
FR520380A (fr) 1921-06-24
DE406247C (de) 1924-11-18
GB147130A (en) 1921-03-24

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